TRANSMISSION DEVICE FOR PHOTOSENSITIVE DRUM

A transmission device (1) has: a gear member (60); an intermediate member (30) attached so as to be attachable and detachable from the gear member (60) and provided with a guide groove (324); and a transmission unit (20) provided with a shaft (70) with at least one protrusion (75) extending outside in the radial direction from the shaft (70) being provided on the shaft (70). The guide groove (324) is formed such that the protrusion is movable in the axial direction along the guide groove (324) and rotatable with respect to the guide groove (324).

END MEMBER, PHOTORECEPTOR DRUM UNIT, AND PROCESS CARTRIDGE

This end member is provided with: a shaft member; and a bearing member to which the shaft member is attached. The bearing member is provided with: a rotary force transmission pin for transmitting rotary force from the shaft member to the bearing member; a cylindrical body; and a pin holding part which is provided inside the cylindrical body, holds the rotary force transmission pin, and regulates attachment and detachment of the rotary force transmission pin. The pin holding part is configured such that the rotary force transmission pin can be attached to and detached from the pin holding part by rotating the shaft member in the circumferential direction of the cylindrical body. The shaft member is provided with: a rotary shaft; a rotary force receiving part which is provided to one end side of the rotary shaft, is capable of engaging with a rotary force applying part of a main body of an image formation device, and receives rotary force from a drive shaft when in an engaged posture; and ...

END MEMBER, PHOTOSENSITIVE DRUM UNIT, DEVELOPING ROLLER UNIT, AND PROCESS CARTRIDGE

An end member is disposed at an end portion of a columnar rotating body mounted on an image forming apparatus body. The end member includes a tubular bearing member and a shaft member held by the bearing member. The shaft member includes a shaft-like rotating shaft which is disposed coaxially to the bearing member, and which rotates around a shaft line with respect to the bearing member to move in a direction of the shaft line, and a tip end member which is disposed coaxially to the rotating shaft, and at which a rotating force receiving member having a tip end provided with an engaging member which engages with a driving shaft of the image forming apparatus body is disposed. A rotating force around the shaft line is transmitted to the rotating force receiving member, the rotating shaft, and the bearing member in order.

BEARING MEMBER, END MEMBER, PHOTORECEPTOR DRUM UNIT, DEVELOPING ROLLER UNIT, PROCESS CARTRIDGE, AND MANUFACTURING METHOD OF BEARING MEMBER

An end member ( 40 ) is disposed in an end portion of a columnar rotating body ( 20, 306 ), comprises: a bearing member ( 41 ); and a shaft member ( 70 ), in which the bearing member includes a main body ( 45 ) having a tubular body ( 46 ) and a holding portion ( 50 ) disposed on an inner side of the tubular body, and an intermediate member ( 60 ) held by the holding portion of the main body, in which one end side of the shaft member is held by the intermediate member, the intermediate member is snap-fit jointed to the holding portion of the main body to be rotatable around one axis, and the shaft member is snap-fit jointed to the intermediate member to be rotatable around an axis which is different from the axis of rotation of the intermediate member.

TRANSMISSION DEVICE FOR PHOTOSENSITIVE DRUM

A transmission device (1) has: a gear member (60); an intermediate member (30) attached so as to be attachable and detachable from the gear member (60) and provided with a guide groove (324); and a transmission unit (20) provided with a shaft (70) with at least one protrusion (75) extending outside in the radial direction from the shaft (70) being provided on the shaft (70). The guide groove (324) is formed such that the protrusion is movable in the axial direction along the guide groove (324) and rotatable with respect to the guide groove (324).

PROCESSING CARTRIDGE, PHOTORECEPTOR DRUM UNIT, AND END MEMBER PAIR

A processing cartridge provided with a housing and a photoreceptor drum unit positioned in the housing and supported by the housing, wherein: the photoreceptor drum unit has a cylindrical photoreceptor drum, and two end members, one of which is positioned on each end of the photoreceptor drum in the axial direction thereof; one end member is provided with an elastic member, biased in the axial direction, and capable of stretching/contracting; the other end member is provided with a cylindrical shaft-receiving member and a shaft member supported by the shaft-receiving member; and the one end member and the other end member contact the housing with the surfaces thereof opposite the photoreceptor drum, and do not contact the housing with the surfaces thereof facing the photoreceptor drum.

PROCESS CARTRIDGE FOR IMAGE FORMING APPARATUS AND METHOD OF SEPARATING PROCESS CARTRIDGE FROM IMAGE FORMING APPARATUS

Provided is an end member which allows appropriate transmission of rotary power, and smooth attachment and detachment with respect to an apparatus body. The end member includes a tubular bearing member and a shaft member that is held by the bearing member. The shaft member includes a turning shaft which moves in an axial line direction in accordance with turning about an axial line, a rotary power reception member which is arranged at one end of the turning shaft and includes an engagement member engaging with a drive shaft of an image forming apparatus body, and a regulation member which is pressed to engage with or be detached from the turning shaft or the rotary power reception member, whereby the engagement member switches between an engagement posture and a non-engagement posture with respect to the drive shaft

END MEMBER, PHOTOSENSITIVE DRUM UNIT, DEVELOPING ROLLER UNIT, AND PROCESS CARTRIDGE

Provided is an end member (30) that is disposed at an end of a cylindrical rotating body (11) that is mounted to an image formation device main body (2), wherein: the end member has a cylindrical bearing member (40) and a shaft member (50) that is held by the bearing member; the shaft member has a shaft-shaped rotating shaft (51) that is disposed on the same axis as the bearing member and moves in the axial direction by rotating about the axis relative to the bearing member, and a tip member (55) that is disposed on the same axis as the rotating shaft and is provided, at the tip, with a rotational force receiving member (58) equipped with an engagement member (60) that engages with a drive shaft (70) of the image formation device main body; the rotational force about the axis is transmitted to the rotational force receiving member, the rotating shaft, and the bearing member in the stated order; and the rotational force receiving member moves so as to be inclined relative to the axis.

BEARING MEMBER, END MEMBER, PHOTORECEPTOR-DRUM UNIT, AND PROCESS CARTRIDGE

A bearing member (45), positioned at the end of a photoreceptor drum (35), for attaching a shaft member (70) that transmits torque. Said bearing member has a tubular body (46) and a retaining part (50, 150). Said retaining part is positioned inside the tubular body and is provided so as to be able to retain and release a torque-transmitting pin (95) provided on the shaft member. The retaining part is provided with the following: pivot grooves (51b, 55b), namely at least two grooves that extend in the direction of the axis of the tubular body and are provided so as to face each other; and entrance grooves (51a, 55a), one end of each of which connects to a pivot groove and the other end of each of which connects to the outside of said pivot groove. The retaining part is positioned such that, in an orientation in which the shaft member transmits torque, with the side of the bearing member from which the shaft member is inserted facing up, the entirety of each entrance groove is below some ...

PROCESS CARTRIDGE AND IMAGE FORMING DEVICE

An image forming device which is provided with: a cylindrical photosensitive drum (11); and an end member (13) that has a cylindrical body (14) which is fitted to an end portion of the cylindrical photosensitive drum (11) and which has an outer circumferential surface that serves as a sliding surface (14b); and a bearing (22) that has a pore, the inner circumferential surface (22a) of which serves as a sliding surface, and that supports the cylindrical body (14) by having the cylindrical body (14) of the end member (13) inserted into the pore. In this image forming device, the difference between the outer diameter (Da) of a portion of the end member (13) having the sliding surface (14b) and the inner diameter (Db) of the bearing is 0.06-0.5 mm (inclusive).

EDGE MEMBER, PHOTOSENSITIVE DRUM UNIT, DEVELOPING ROLLER UNIT, AND PROCESS CARTRIDGE

An edge member (30) arranged at an edge of a columnar rotating body (11) mounted on an image formation device main unit (2), wherein: the edge member (30) has a cylindrical bearing member (40), and a shaft member (50) held in the bearing member; the shaft member has a shaft-shaped rotating shaft (51) arranged coaxially with the bearing member, the rotating shaft moving in the axial direction by rotating about the axis relative to the bearing member, and a tip member (55) arranged coaxially with the rotating shaft, the tip member including, at the tip thereof, a rotational-force-receiving member (58) provided with engagement members (60) that engage with a drive shaft (70) of the image formation device main unit; and rotational force about the axis is conveyed to the rotational-force-receiving member, the rotating shaft, and the bearing member in the stated order.

BEARING MEMBER, END SECTION MEMBER, PHOTORECEPTOR DRUM UNIT, AND METHOD FOR MANUFACTURING BEARING MEMBER

A bearing member has: a recess (51c) which has one end open and which has a bottom section (51b) located on the side opposite the opening and having a curved surface expanding along a sphere, the recess (51c) containing the sphere; and at least two rocking grooves (52) which are provided in the side surface of the recess and into which the ends of a rotational force transmission pin are inserted. At least part of each of the rocking grooves is provided with a portion which is parallel to the axis of the bearing member, and is also provided with a portion (52a) which curves so as to approach the axis. When the recess is viewed in the axial direction of the bearing member from the side of the recess which is open, the recess is formed in such a manner that the recess has no undercut section, and that the distance between the two rocking grooves which is measured on the open side of the recess in the direction perpendicular to the axial direction is, when a shaft member is mounted to the bearing ...

END MEMBER, PHOTOSENSITIVE DRUM UNIT, AND PROCESS CARTRIDGE

The present invention is an end member (30) to be placed at an end of a columnar rotatable body attached to an image forming device body (2). The end member comprises: a tubular bearing member (40); and a shaft member (50) held by the bearing member (40). The shaft member (50) has a rotary shaft (51) which is rotatable around the axis and which is movable in the axis direction, and a rotary force receiving member (55) which is placed at one end of the rotary shaft (51) and which includes an engagement member (58) to engage with a driving shaft (70) of the image forming device body (2). The engagement member (58) is switchable between a posture engaging with the driving shaft (70) and a posture not engaging with the driving shaft (70). The maximum static friction coefficient in movement, in the rotational axis direction, of the rotary shaft (51) with respect to the bearing member (40) is 0.40 or less when a force applied in a direction perpendicular to the friction force direction is 2.5 ...

BEARING MEMBER, TERMINAL MEMBER, PHOTOSENSITIVE DRUM UNIT, DEVELOPING ROLLER UNIT, PROCESS CARTRIDGE, INTERMEDIATE MEMBER, AND BEARING MEMBER MAIN BODY

This bearing member (41), which is disposed at the end of a cylindrical rotating body and to which a shaft member (70) is attached, is provided with: a main body (45) having a tubular body (46) and a holding section (50) disposed at the inside of the tubular body; and an intermediate member (60) held by the holding section of the main body. The holding section has intermediate member guides (51, 52, 53, 54) that guide the intermediate member in a manner so that the intermediate member rotates, and the intermediate member is equipped with a site at which the shaft member is disposed.

SHAFT-MEMBER DETACHMENT METHOD AND SHAFT-MEMBER DETACHING TOOL

Provided is a method for detaching a shaft member from a bearing member without damaging a torque-receiving part. In this method for detaching a shaft member from a bearing member that transmits torque to a photoreceptor drum, said shaft member being pivotably held by said bearing member, the shaft member is provided with a base section that is enclosed inside the bearing member, a torque-transmitting pin that protrudes from said base section, and a torque-receiving part that is positioned so as to protrude from the bearing member. Said method is provided with a step in which the shaft member is detached from the bearing member by means of a force applied to the base section.

SHAFT MEMBER, END MEMBER, PHOTORECEPTOR DRUM UNIT, DEVELOPMENT ROLLER UNIT, AND PROCESS CARTRIDGE

An end member disposed at an end of a circular solid cylindrical rotating body mounted to an image forming device body has a hollow cylindrical bearing member and a shaft member which is held by the bearing member. The shaft member has: a pivot shaft which is disposed in the bearing member and which moves in the axial direction; and a rotational force receiving member which is disposed at one end of the pivot shaft, rocks relative to the axis of the pivot shaft, and is provided with a catch which engages with the drive shaft of the image forming device body.

BEARING MEMBER, END MEMBER, PHOTORECEPTOR DRUM UNIT, DEVELOPING ROLLER UNIT, PROCESS CARTRIDGE, AND METHOD FOR MANUFACTURING BEARING MEMBER

An end member (40) arranged on the end of a cylindrical rotary body (20, 306) and having a bearing member (41) and a shaft member (70), said bearing member being equipped with: a main body (45), having a tubular body (46) and a retaining part (50) arranged inside the tubular body; and an intermediate member (60) retained by the retaining part of the main body. One end of the shaft member is retained in the intermediate member, the intermediate member is connected by snap-fitting so as to be capable of rotating around one axis with respect to the retaining part of the main body, and the shaft member is connected by snap-fitting so as to be capable of rotating with respect to the intermediate member around an axis other than the axis of rotation of the intermediate member.

END MEMBER, PHOTOSENSITIVE DRUM UNIT, AND PROCESS CARTRIDGE

Provided is an end member that is disposed at the end part of a cylindrical rotating body, wherein the end member has a shaft member and a bearing member that holds the shaft member. The shaft member is provided with a rotating shaft and a rotational force receiving part, which is provided on one end side of the rotating shaft and can be latched to a rotating force supplying part of an image forming device main body and which receives rotational force from a drive shaft in a latched attitude. At least one of the shaft member and bearing member is provided with a mechanism for moving in the direction of the axial line without tilting the rotational force receiving part by way of moving in a direction orthogonal to the direction of the axial line of the rotational force receiving part or rotating around the axial line of the rotational force receiving part.

PROCESSING CARTRIDGE PROTECTIVE COVER, SEPARATION AND RELEASE MEANS, PROCESSING CARTRIDGE, AND SEPARATION METHOD FOR PROCESSING CARTRIDGE

A processing cartridge protective cover (50, 150) disposed on the outer periphery of a processing cartridge body (10) comprises: a plate-like first protective piece (51, 151), a plate-like second protective piece (52, 152) positioned facing the first protective piece with a gap therebetween; a connecting piece (53, 153) that connects one edge of the first protective piece and one edge of the second protective piece; engaging pieces (51a, 52a, 151a), which are protruding members disposed on at least the first protective piece or the second protective piece; and a separation member (54, 155), which is a protrusion disposed between the first protective piece and the second protective piece, on at least one of the first protective piece, the second protective piece, and the connecting piece.

SHAFT MEMBER, END MEMBER, PHOTORECEPTOR DRUM UNIT, DEVELOPING ROLLER UNIT, AND PROCESS CARTRIDGE

An end member is arranged at the end of a columnar rotor attached to the main body of an image formation device, the end member including a tubular bearing member and a shaft member held by the bearing member. The shaft member comprises: a rotary shaft pivoting within the range of up to 18° relative to a direction along the axial line of the bearing member; a torque receiving member arranged at one end of the rotary shaft and equipped with an engagement member engaged with the drive shaft of the main body of an image formation device; and a regulating member which, when pressed, engages with or disengages from the rotary shaft or the torque receiving member to thereby switch between an attitude that causes the engagement member to engage with the drive shaft and an attitude that causes the engagement member to disengage from the drive shaft.

PROCESS CARTRIDGE AND IMAGE FORMING DEVICE

END MEMBER, PHOTOSENSITIVE DRUM UNIT, AND PROCESS CARTRIDGE

An end member is disposed in an end portion of a columnar rotating body, comprising: a shaft member; and a bearing member which holds the shaft member, wherein the shaft member comprises: a rotating shaft; and a rotating force receiving portion which is provided on one end side of the rotating shaft, is engageable with a rotating force imparting portion of an image forming apparatus main body, and receives a rotating force from a driving shaft in the engaged posture, and wherein at least one of the shaft member and the bearing member has a mechanism where the rotating force receiving portion moves also in a shaft line direction without be inclined by a movement of the rotating force receiving portion in a direction orthogonal to the shaft line direction or by a rotation of the rotating force receiving portion around a shaft line.

END MEMBER, PHOTORECEPTOR DRUM UNIT, DEVELOPING ROLLER UNIT, AND PROCESS CARTRIDGE

An end member () comprises: a tubular bearing member (); and a shaft member (), wherein the shaft member comprises: a shaft-like rotating shaft () which is disposed coaxially to the bearing member, and moves in the shaft line direction by rotating around a shaft line with respect to the bearing member; and a tip end member () which is disposed coaxially to the rotating shaft, and where a rotating force receiving member () provided with an engaging member () which engages with a driving shaft () of the image forming apparatus main body is disposed at a tip end, wherein a rotating force around the shaft line is transmitted to the rotating force receiving member, the rotating shaft, and the bearing member, in this order, and the rotating force receiving member moves to be inclined with respect to the shaft line. 1. An end member which is disposed in an end portion of a columnar rotating body mounted on an image forming apparatus main body , comprising:a tubular bearing member; anda shaft member held by the bearing member,wherein the shaft member comprises: a shaft-like rotating shaft which is disposed coaxially to the bearing member, and which moves in the shaft line direction by rotating around a shaft line with respect to the bearing member; and a tip end member which is disposed coaxially to the rotating shaft, and where a rotating force receiving member provided with an engaging member which engages with a driving shaft of the image forming apparatus main body is disposed at a tip end, andwherein a rotating force around the shaft line is transmitted to the rotating force receiving member, the rotating shaft, and the bearing member, in this order, and the rotating force receiving member moves to be inclined with respect to the shaft line.2. The end member according to claim 1 ,wherein the rotating shaft and/or the tip end member move in the direction along the shaft line direction regardless of the rotation around the shaft line of the shaft member.3. The end member ...

PROCESS CARTRIDGE AND IMAGE FORMING DEVICE

An image forming device, including a cylindrical photoreceptor drum (11), an end member (13) having a tubular body which is mounted at an end portion of the photoreceptor drum (11) and which has an outer circumferential surface serving as a sliding surface (14b), and a bearing (22) configured to have a hole which defines an inner peripheral surface (22a) that corresponds to a sliding surface, the bearing (22) supporting the tubular body (14) of the end member (13) by inserting the tubular body (14) into the hole, wherein a difference between an outside diameter (Da) of a part provided with the sliding surface (14b) of the end member (13) and a diameter (Db) of the hole of the bearing is equal to or more than 0.06 mm and equal to or less than 0.5 mm.

SHAFT MEMBER, END MEMBER, PHOTORECEPTOR DRUM UNIT, DEVELOPING ROLLER UNIT, AND PROCESS CARTRIDGE

An end member which is disposed in an end portion of a columnar rotating body mounted on an image forming apparatus main body, comprises: a tubular bearing member; and a shaft member held by the bearing member, wherein the shaft member includes a rotating shaft which is disposed in the bearing member, and moves in an axial direction, and a rotating force receiving member which is provided with an engagement hook that is disposed in one end portion of the rotating shaft, swings with respect to an axis of the rotating shaft, and is engaged with a driving shaft of the image forming apparatus main body. 1. An end member which is disposed in an end portion of a columnar rotating body mounted on an image forming apparatus main body , comprising:a tubular bearing member; anda shaft member held by the bearing member,wherein the shaft member includesa rotating shaft which is disposed in the bearing member, and moves in an axial direction, anda rotating force receiving member which is provided with an engagement hook that is disposed in one end portion of the rotating shaft, swings with respect to an axis of the rotating shaft, and is engaged with a driving shaft of the image forming apparatus main body.2. The end member according to claim 1 , further comprising:a rotating shaft elastic member which biases the rotating shaft in the axial direction; anda hook member elastic member which is provided to be separated from the rotating shaft elastic member, and biases the engagement hook in a swing direction.3. The end member according to claim 1 ,wherein the rotating force receiving member swings in all directions with respect to the axis of the rotating shaft.4. The end member according to claim 1 ,wherein the rotating force receiving member includes a tip end member disposed in one end portion of the rotating shaft, and a hook member which is held by the tip end member and is provided with the engagement hook, andwherein the hook member swings being held by the tip end member.5 ...

ROTATING PART FOR IMAGE FORMING APPARATUS, CARTRIDGE FOR FORMING IMAGE, AND IMAGE FORMING APPARATUS

A rotating part for an image forming apparatus, including: a drive member; and a driven member, wherein either of the drive member and the driven member has a male part formed in the direction of a rotational shaft, wherein the other of the drive member and the driven member has a female part formed in the direction of the rotational shaft, and wherein the male part is a ratchet-shape male part to be inserted into the female part and in which when the drive member rotates in a first direction, the male part is brought into engagement with the female part to thereby transmit power from the drive member to the driven member, while when the drive member rotates in a second direction opposite to the first direction, the male part and the female part move away from each other to thereby transmit no power. 1. A rotating part for an image forming apparatus , comprising:a drive member configured to transmit power; anda driven member which is rotated by the drive member, whereineither of the drive member and the driven member has a male part which is formed in the direction of a rotational shaft, whereinthe other of the drive member and the driven member has a female part which is formed in the direction of the rotational shaft and into which the male part is inserted, and whereinthe male part is a ratchet-shape male part configured to be inserted into the female part and in which when the drive member rotates in a first direction, the male part is brought into engagement with the female part to thereby transmit power from the drive member to the driven member, while when the drive member rotates in a second direction opposite to the first direction, the male part and the female part move away from each other in the direction of the rotational shaft to thereby transmit no power from the drive member to the driven member.2. The rotating part according to claim 1 , whereinthe female part is a twisted triangular female part in which a section normal to the rotational shaft has ...

Rotating part for image forming apparatus, cartridge for forming image, and image forming apparatus

A rotating part for an image forming apparatus includes a drive member for transmitting power; and a driven member that is rotated by the drive member. The drive member has a male part formed in a direction of a rotation axis, and the driven member has a female part that is formed in the direction of the rotation axis and into which the male part is inserted. The male part is a hexagonal male part whose cross section perpendicular to the rotation axis assumes a hexagonal shape. The female part is a twisted triangular female part that assumes a triangular cross sectional profile in a direction perpendicular to the rotation axis, and a triangle which forms a cross section of a base and a cross section of a top is twisted at a predetermined angle with respect to the rotation axis.

Rotating part for image forming apparatus, cartridge for forming image, and image forming apparatus

A rotating part for an image forming apparatus, including: a drive member; and a driven member, wherein either of the drive member and the driven member has a male part formed in the direction of a rotational shaft, wherein the other of the drive member and the driven member has a female part formed in the direction of the rotational shaft, and wherein the male part is a ratchet-shape male part to be inserted into the female part and in which when the drive member rotates in a first direction, the male part is brought into engagement with the female part to thereby transmit power from the drive member to the driven member, while when the drive member rotates in a second direction opposite to the first direction, the male part and the female part move away from each other to thereby transmit no power.

PROCESS FOR PRODUCING END MEMBER, PROCESS FOR PRODUCING PHOTO CONDUCTOR DRUM UNIT, END MEMBER, AND PHOTO CONDUCTOR DRUM UNIT

There is provided a process for producing an end member capable of improving adhesiveness without not always requiring grooves or rough surfaces at a fitting portion of the end member, at the time of joining a photo conductor drum having an aluminum-made or aluminum alloy-made substrate and a crystalline resin-made end member with an adhesive. A process for producing an end member to be mounted on an end portion of a photo conductor drum and formed of a material including a crystalline resin, wherein the end member has a fitting portion to be fitted to the end portion of the photo conductor drum and the process has a step of subjecting at least an outer surface of the fitting portion to an oxidation treatment. 1. A process for producing an end member to be mounted on an end portion of a photo conductor drum and to be formed of a material containing a crystalline resin , whereinthe end member having a fitting portion to be fitted to the end portion of the photo conductor drum, andthe process comprising a step of subjecting at least an outer surface of the fitting portion to an oxidation treatment.2. The process for producing an end member according to claim 1 , wherein the oxidation treatment is an ozone treatment.3. The process for producing an end member according to claim 1 , wherein the oxidation treatment is ozone exposure or immersion in ozonated water.4. The process for producing an end member according to claim 1 , wherein the oxidation treatment is ozone exposure and nitrogen oxides are substantially not contained.5. The process for producing an end member according to claim 1 , wherein the oxidation treatment is immersion in ozonated water and nitrogen oxides are substantially not contained.6. The process for producing an end member process according to claim 2 , wherein ozone to be used in the oxidation treatment is formed by an electrolytic method.7. The process for producing an end member according to claim 1 , wherein the crystalline resin is polyacetal ...

Bearing member, end member, photosensitive drum unit, process cartridge, and method for manufacturing bearing member

A bearing member placed at an end of a photosensitive drum, and a shaft member is attached thereto. The bearing member has a cylindrical body and a retaining portion placed in the cylindrical body, retaining a torque transmission pin provided in the shaft member, and removably provided. The retaining portion is provided with swaying grooves at least two grooves extending in an axial direction of the cylindrical body, placed opposite each other, and whose bottoms have each a curved surface exhibiting a bow with respect to the axial direction; inlet grooves at one end thereof connected to the respective swaying grooves and at the other end thereof connected to outside of the retaining portion and placed at an upstream position with respect to the swaying grooves along a direction of rotation of the cylindrical body; and a pedestal interposed, at one end, between the two swaying grooves.

Process cartridge and image forming device

An image forming device, including a cylindrical photoreceptor drum, an end member having a tubular body which is mounted at an end portion of the photoreceptor drum and which has an outer circumferential surface serving as a sliding surface, and a bearing configured to have a hole which defines an inner peripheral surface that corresponds to a sliding surface, the bearing supporting the tubular body of the end member by inserting the tubular body into the hole, wherein a difference between an outside diameter of a part provided with the sliding surface of the end member and a diameter of the hole of the bearing is equal to or more than 0.06 mm and equal to or less than 0.5 mm.

End portion member, photosensitive drum unit and process cartridge

A bearing member engageable and disengageable from a recessed portion of an image forming apparatus body is included. While the bearing member is engaged into the recessed portion, a cross-sectional area occupancy ratio which is a degree of area occupied by a cross-section of the bearing member to a cross-section of the recessed portion is 15% or higher and 75% or less. An outer peripheral shape of the bearing member in a cross-section is a hexagon, and assuming that a radius of a circumscribed circle of the hexagon is r 1g , and when a hexagon is formed by sides enclosed by a triangle formed at an opening of the recessed portion when the recessed portion is viewed from a front in the axial direction and a triangle formed at a bottom of the recessed portion, a radius of an inscribed circle of the hexagon is r 2h , r 1g −r 2h >0.

TORQUE TRANSMITTING MEMBER, PHOTOSENSITIVE DRUM UNIT, AND PROCESS CARTRIDGE

There is provided a torque transmitting member that appropriately maintains conductivity between an image forming apparatus body and a photosensitive drum and can suppress the occurrence of conduction failure. A torque transmitting member, which is disposed at an end portion of a photosensitive drum unit and transmits torque, includes: an cylindrical end member that includes a bearing portion at one end portion thereof and a fitting portion, which is inserted into a photosensitive drum, at the other end portion thereof; and a conductive conducting shaft member that is disposed so as to extend along a cylindrical shaft of the end member and includes a conductive material, which is elastically deformed, on at least a part thereof. 1. A torque transmitting member that is disposed at an end portion of a photosensitive drum unit and transmits torque , the torque transmitting member comprising:a cylindrical end member that includes a bearing portion at one end portion thereof and a fitting portion at the other end portion thereof, the fitting portion being inserted into a photosensitive drum; anda conductive conducting shaft member that is disposed so as to extend along a cylindrical shaft of the end member and includes a conductive material, which is elastically deformed, on at least a part thereof.2. The torque transmitting member according to claim 1 ,wherein the conductive material is at least one of a coil spring, a conductive sheet, a brush made of metal, and wool made of metal.3. The torque transmitting member according to claim 1 ,wherein the torque transmitting member is formed so that an end portion of the conducting shaft member is accessible from the bearing portion.4. The torque transmitting member according to claim 1 ,wherein a ground plate, which is a conductive plate-like member, is disposed at a portion of the end member close to the fitting portion and an end portion of the conducting shaft member comes into contact with the ground plate.5. The torque ...

Shaft-member detachment method and shaft-member detaching tool

There is provided a method for detaching a shaft member swingably held by a bearing member from the bearing member which transmits a rotating force to a photoreceptor drum, wherein the shaft member includes a base end section received inside the bearing member, a rotating force transmission pin which protrudes from the base end section, and a rotating force receiving section which is disposed to protrude from the bearing member, and the method includes a process of detaching the shaft member from the bearing member by a force acting on the base end section.

BEARING MEMBER, END MEMBER, PHOTORECEPTOR-DRUM UNIT, AND PROCESS CARTRIDGE

There is provided a bearing member which is disposed at an end section of a photoreceptor drum for attaching a shaft member that transmits a rotating force to the bearing member, the bearing member including a tubular body, and a holding section which is disposed inside the tubular body attachably and detachably, and holds a rotating force transmission pin provided in the shaft member, wherein the holding section includes at least two swing grooves provided extending along an axial direction of the tubular body, and opposing each other, and introduction grooves, each having one end communicating with the swing groove and the other end communicating with an outside of the swing groove, and the introduction grooves in a posture in which the shaft member transmits the rotating force are disposed entirely at a position to be lower than an entirety or a part of the rotating force transmission pin.

Transmission device for a photosensitive drum

A transmission device includes a gear member, an intermediate member removably attached to the gear member and including a guiding groove, and a transmitter including a shaft, the shaft having at least one protrusion extending radially outward from the shaft, and the guiding groove is shaped such that the protrusion is movable along the guiding groove in an axial direction and rotatable relative to the guiding groove.

Bearing member, end member, photosensitive drum unit, developing roller unit, process cartridge, intermediate member, and bearing member body

A bearing member is configured to be arranged in an end portion of a columnar rotary body, in which a shaft member is attached to the bearing member. The bearing member includes a body which includes a cylindrical body and a holding portion which is arranged inside the cylindrical body, and an intermediate member which is held by the holding portion of the body. The holding portion includes an intermediate member guide which guides the intermediate member so that the intermediate member rotates. The intermediate member includes a portion in which the shaft member is arranged.

Bearing member, end member, photosensitive drum unit, developing roller unit, process cartridge, intermediate member, and bearing member body

A bearing member is configured to be arranged in an end portion of a columnar rotary body, in which a shaft member is attached to the bearing member. The bearing member includes a body which includes a cylindrical body and a holding portion which is arranged inside the cylindrical body, and an intermediate member which is held by the holding portion of the body. The holding portion includes an intermediate member guide which guides the intermediate member so that the intermediate member rotates. The intermediate member includes a portion in which the shaft member is arranged.

END MEMBER, PROCESS CARTRIDGE, AND METHOD OF SEPARATING PROCESS CARTRIDGE

Provided is an end member which allows appropriate transmission of rotary power, and smooth attachment and detachment with respect to an apparatus body. The end member includes a tubular bearing member and a shaft member that is held by the bearing member. The shaft member includes a turning shaft which moves in an axial line direction in accordance with turning about an axial line, a rotary power reception member which is arranged at one end of the turning shaft and includes an engagement member engaging with a drive shaft of an image forming apparatus body, and a regulation member which is pressed to engage with or be detached from the turning shaft or the rotary power reception member, whereby the engagement member switches between an engagement posture and a non-engagement posture with respect to the drive shaft. 144-. (canceled)45. A process cartridge to be mounted in an image forming apparatus body , the process cartridge comprising:a casing; anda photosensitive drum unit that is arranged inside the casing,wherein the photosensitive drum unit includes a photosensitive drum and an end member which is arranged in at least one end of the photosensitive drum,wherein the end member includes a tubular bearing member and a shaft member which is held by the bearing member,wherein the shaft member includes a turning shaft which is movable in an axial line direction,wherein the casing is provided with a recessed operation portion which is used when a user draws out the process cartridge from the image forming apparatus body, andwherein the recessed operation portion has a blocked portion in a recessed part corresponding to the end member side engaging with a drive shaft of the image forming apparatus body, from a center in a width direction that is a direction extending an axial line of the photosensitive drum unit.46. The process cartridge according to claim 45 , wherein the turning shaft is configured to move in the axial line direction in accordance with turning ...

End member, photosensitive drum unit, and process cartridge

An end member includes a tubular bearing member and a shaft member held by the bearing member. The shaft member includes a rotating shaft rotatable around an axis and movable in an axial direction, and a rotating force receiving member disposed in one end portion of the rotating shaft and including an engaging member to be engaged with a driving shaft of the image forming apparatus body. The engaging member is switchable between a posture of being engaged with the driving shaft and a posture of not being engaged with the driving shaft. A maximum static friction coefficient applied when the rotating shaft moves in a rotating axial direction with respect to the bearing member is equal to or less than 0.40 where a force that acts in a direction orthogonal to a frictional force direction is 2.5 to 10.5 N.

End-side member, photoreceptor drum unit and process cartridge

There is provided an end-side member to be arranged at an end of a photoreceptor drum unit which is detachably attached to an image forming apparatus body, the image forming apparatus body including a drive shaft having a concave portion, the concave portion being a hole having a substantially triangular cross-sectional shape and twisted in an extending direction of an axial line of the drive shaft. The end-side member includes a convex-shaped bearing member which is engageable with and disengageable from the concave portion. A depression to be engaged with a rim of an opening of the concave portion is formed in at least a part of an outer circumferential surface of the bearing member.

PROCESSING CARTRIDGE, PHOTORECEPTOR DRUM UNIT, AND END MEMBER PAIR

A photoreceptor drum unit is provided with a cylindrical photoreceptor drum, and two end members which are respectively disposed at both ends of the photoreceptor drum in an axial direction. One of the end members is provided with an elastic member, is biased in the axial direction, and is extendable and contractable. The other of the end members is provided with a cylindrical bearing member and a shaft member held in the bearing member. 1. A processing cartridge to be attached to and detached from an image forming apparatus main body , the processing cartridge comprising:a housing; anda photoreceptor drum unit which is disposed in the housing and held in the housing,wherein the photoreceptor drum unit includes:a cylindrical photoreceptor drum; andtwo end members which are respectively disposed at both ends of the photoreceptor drum in an axial direction,wherein one of the end members is provided with an elastic member, is biased in the axial direction, and is extendable and contractable,wherein the other of the end members is provided with a cylindrical bearing member and a shaft member held in the bearing member, andwherein the one of the end members and the other of the end members come into contact with the housing on surfaces opposite to the photoreceptor drum, and do not come into contact with the housing on surfaces facing the photoreceptor drum side.2. The processing cartridge according to claim 1 ,wherein the other of the end members is held so that the shaft member swings with respect to the bearing member.3. The processing cartridge according to claim 1 ,wherein the shaft member of the other of the end members includes:a rotating shaft which moves in an axial direction of the bearing member, anda rotating force receiving member which is disposed in one end portion of the rotating shaft, swings with respect to an axis of the rotating shaft, and is provided with an engagement claw which is to be engaged with a driving shaft of the image forming apparatus ...

End member, photoreceptor drum unit, and process cartridge

An end member disposed in an end portion of a columnar rotating body, comprising: a shaft member; and a bearing member to which the shaft member is attached, wherein the bearing member includes a rotating force transmission pin, a tubular body, and a pin holding portion, the shaft member includes a rotating shaft, a rotating force receiving portion, and a base end portion.

TRANSMISSION DEVICE FOR A PHOTOSENSITIVE DRUM

A transmission unit includes a gear member; a sleeve removably attached to the gear member, the sleeve including a guiding groove; and a transmission unit including a shaft having at least one protrusion extending radially outward from the shaft. The guiding groove is shaped such that the protrusion is moveable within the guiding groove in an axial direction and rotatable relative to the guiding groove. 1. A transmission unit , comprising:a gear member including at least one ledge on an interior face of the gear member and at least one receiving member having an opening facing the ledge;a sleeve removably attached to the gear member, the sleeve including a guiding groove and at least one protrusion extending radially outward; anda transmission unit including a shaft having at least one protrusion extending radially outward from the shaft,wherein the guiding groove is shaped such that the protrusion is moveable within the guiding groove in an axial direction and rotatable relative to the guiding groove.2. The transmission unit according to claim 1 , wherein the opening of the receiving member of the gear member is arranged such that the sleeve is removably attached within the gear member by axially inserting the sleeve into the gear member and then rotating the gear member until the protrusion of the sleeve is positioned within the opening of the receiving member.3. A transmission unit claim 1 , comprising:a gear member;a sleeve removably attached to the gear member, the sleeve including a slot on a top face and at least one retention member that forms a guiding groove; anda transmission unit including a shaft having at least one protrusion extending radially outward from the shaft, whereinthe guiding groove is shaped such that the protrusion is moveable within the guiding groove in an axial direction and rotatable relative to the guiding groove, andthe slot on the top face of the sleeve is sized to allow the protrusion to pass through the slot when the transmission ...

BEARING MEMBER, END MEMBER, PHOTORECEPTOR DRUM UNIT, DEVELOPING ROLLER UNIT, PROCESS CARTRIDGE, AND MANUFACTURING METHOD OF BEARING MEMBER

An end member () is disposed in an end portion of a columnar rotating body (), comprises: a bearing member (); and a shaft member (), in which the bearing member includes a main body () having a tubular body () and a holding portion () disposed on an inner side of the tubular body, and an intermediate member () held by the holding portion of the main body, in which one end side of the shaft member is held by the intermediate member, the intermediate member is snap-fit jointed to the holding portion of the main body to be rotatable around one axis, and the shaft member is snap-fit jointed to the intermediate member to be rotatable around an axis which is different from the axis of rotation of the intermediate member. 1. An end member which is disposed in an end portion of a columnar rotating body , comprising:a bearing member; anda shaft member,wherein the bearing member includes a main body having a tubular body and a holding portion disposed on an inner side of the tubular body, and an intermediate member held by the holding portion of the main body,wherein one end side of the shaft member is held by the intermediate member,wherein the shaft member includes a rotating shaft, a rotating force receiving portion which is disposed at one end of the rotating shaft and receives a rotating force, a base end portion which is disposed at the other end of the rotating shaft, and a rotating force transmission projection which protrudes from the base end portion,wherein the base end portion of the shaft member includes a part of a spherical surface,wherein the intermediate member is jointed to the holding portion of the main body to be rotatable around one axis, andwherein the shaft member is jointed to the intermediate member to be rotatable around an axis which is different from the axis of rotation of the intermediate member.2. The end member according to claim 1 , wherein the intermediate member has an annular shape claim 1 , in which the base end portion is disposed on an ...

End member, photoreceptor drum unit, and process cartridge

An end member is disposed in an end portion of a columnar rotating body, comprising: a shaft member; and a bearing member which holds the shaft member, wherein the shaft member comprises: a rotating shaft; and a rotating force receiving portion, and wherein at least one of the shaft member and the bearing member has a mechanism where the rotating force receiving portion moves also in a shaft line direction without be inclined by a movement of the rotating force receiving portion in a direction orthogonal to the shaft line direction or by a rotation of the rotating force receiving portion around a shaft line.

End portion member, photosensitive drum unit and process cartridge

A bearing member engageable and disengageable from a recessed portion of an image forming apparatus body is included. While the bearing member is engaged into the recessed portion, a cross-sectional area occupancy ratio which is a degree of area occupied by a cross-section of the bearing member to a cross-section of the recessed portion is 15% or higher and 75% or less. An outer peripheral shape of the bearing member in a cross-section is a hexagon, and assuming that a radius of a circumscribed circle of the hexagon is r 1g , and when a hexagon is formed by sides enclosed by a triangle formed at an opening of the recessed portion when the recessed portion is viewed from a front in the axial direction and a triangle formed at a bottom of the recessed portion, a radius of an inscribed circle of the hexagon is r 2h , r 1g −r 2h >0.

BEARING MEMBER, END SECTION MEMBER, PHOTORECEPTOR DRUM UNIT, AND METHOD FOR MANUFACTURING BEARING MEMBER

A bearing member includes a concave section receiving a spherical body therein, and swing grooves into which end sections of a rotating force transmission pin are inserted. The swing groove at least includes a parallel part an axis and a curved part, an undercut section is not provided in the concave section when the concave section is viewed from an opened side of the concave section in a direction of the axis of the bearing member, and a clearance between the two swing grooves in a direction which is orthogonal to the direction of the axis on the opened side of the concave section is shorter than a distance between both ends of the rotating force transmission pin in the direction which is orthogonal to the axis of the bearing member even when the shaft member is mounted on the bearing member in a posture inclined at the most. 1. A bearing member to be disposed in an end section of a photoreceptor drum , wherein a shaft member which includes a spherical body of which at least one part is spherical and a rotating force transmission pin provided to protrude from the spherical body is swingably installed in the bearing member , the bearing member comprising:a concave section in which one section is opened and a bottom section on a side opposite to the one section has a curved surface along the spherical body, the concave section receiving the spherical body therein; and at least two swing grooves being grooves which are provided on a side surface of the concave section and into which end sections of the rotating force transmission pin are inserted,wherein the swing groove at least includes a parallel part which is parallel to an axis of the bearing member and a curved part curved toward the axis,wherein an undercut section is not provided in the concave section when the concave section is viewed from an opened side of the concave section in a direction of the axis of the bearing member, andwherein a clearance between the two swing grooves in a direction which is ...

Shaft member, end member, photoreceptor drum unit, developing roller unit, and process cartridge

There is provided an end member which is disposed in an end portion of a columnar rotating body mounted on an image forming apparatus main body, comprising: a tubular bearing member; and a shaft member held by the bearing member, in which the shaft member includes a rotating shaft which oscillates within a range of 18° or less with respect to a direction along an axis of the bearing member, a rotating force receiving member which is disposed in one end portion of the rotating shaft and is provided with an engaging member which is engaged with a driving shaft of the image forming apparatus main body, and a regulating member which is engaged with or disengaged from the rotating shaft or the rotating force receiving member by pressing, and switches a posture in which the engaging member is engaged with the driving shaft and a posture in which the engaging member is not engaged with the driving shaft.

Bearing member, end member, photoreceptor-drum unit, and process cartridge

There is provided a bearing member (45) which is disposed at an end section of a photoreceptor drum (35) for attaching a shaft member (70) that transmits a rotating force to the bearing member, the bearing member including a tubular body (46), and a holding section (50, 150) which is disposed inside the tubular body attachably and detachably, and holds a rotating force transmission pin (95) provided in the shaft member, wherein the holding section includes at least two swing grooves (51b, 55b) provided extending along an axial direction of the tubular body, and opposing each other, and introduction grooves (51a, 55a), each having one end communicating with the swing groove and the other end communicating with an outside of the swing groove, and wherein, where a side in which the shaft member is inserted in the baring member is considered as an upper side, the introduction grooves in a posture in which the shaft member transmits the rotating force are disposed entirely at a position to be lower than an entirety or a part of the rotating force transmission pin.

Shaft member, end member, photoreceptor drum unit, developing roller unit, and process cartridge

There is provided an end member which is disposed in an end portion of a columnar rotating body mounted on an image forming apparatus main body, comprising: a tubular bearing member; and a shaft member held by the bearing member, in which the shaft member includes a rotating shaft which oscillates within a range of 18° or less with respect to a direction along an axis of the bearing member, a rotating force receiving member which is disposed in one end portion of the rotating shaft and is provided with an engaging member which is engaged with a driving shaft of the image forming apparatus main body, and a regulating member which is engaged with or disengaged from the rotating shaft or the rotating force receiving member by pressing, and switches a posture in which the engaging member is engaged with the driving shaft and a posture in which the engaging member is not engaged with the driving shaft.

Planar structure

【課題】斬新で洗練されたデザインを採用することができるとともに、容易に組み立てることができ、且つ低コストで補剛することで建物自体の剛性向上や内部の構造に自由度を持たせることができる面構造体を提供することを課題とする。 【解決手段】複数の板状構成材（壁構成材１０）をその幅方向に連接して構成される建物の面構造体（壁面１）であって、板状構成材１０は、外殻板１１と、この外殻板１１の幅方向両端にそれぞれ長手方向に沿って設けられたリブ状の継手板１２とを備えており、互いに隣接する継手板１２同士が、一対の補剛材５０，５０によって挟持されて接合されている。 【選択図】図２

Bearing member, terminal member, photosensitive drum unit, developing roller unit, process cartridge, intermediate member, and bearing member main body

Bearing member, end member, photosensitive drum unit, developing roller unit, process cartridge, intermediate member, and bearing member body

A bearing member is configured to be arranged in an end portion of a columnar rotary body, in which a shaft member is attached to the bearing member. The bearing member includes a body which includes a cylindrical body and a holding portion which is arranged inside the cylindrical body, and an intermediate member which is held by the holding portion of the body. The holding portion includes an intermediate member guide which guides the intermediate member so that the intermediate member rotates. The intermediate member includes a portion in which the shaft member is arranged.

Bearing member, end member, photosensitive drum unit, developing roller unit, process cartridge, intermediate member, and bearing member body

A bearing member is configured to be arranged in an end portion of a columnar rotary body, in which a shaft member is attached to the bearing member. The bearing member includes a body which includes a cylindrical body and a holding portion which is arranged inside the cylindrical body, and an intermediate member which is held by the holding portion of the body. The holding portion includes an intermediate member guide which guides the intermediate member so that the intermediate member rotates. The intermediate member includes a portion in which the shaft member is arranged.

端部部材、感光体ドラムユニット、及びプロセスカートリッジ

【課題】三角形断面を有して深さ方向にねじれた形態の穴に適用する場合であっても回転駆動力を十分に伝達し、駆動軸及び軸受部材に生じる傷や打痕を抑制し、装置本体と感光体ドラムとの着脱が円滑である端部部材を提供する。【解決手段】断面形状が略三角形で軸線が延びる方向にはねじれた穴である凹部を有する駆動軸が備えられた画像形成装置本体に対して取り外し可能に装着される感光体ドラムユニットの端部に配置される端部部材であって、凹部に係合及び離脱可能な突起状の軸受部材が備えられ、軸受部材は軸線を囲むように所定の間隔で配置された複数の爪を有し、爪は凹部の内面に接触し、駆動軸の回転のときに凹部に引っ掛かり回転力を伝達する回転力伝達面を具備し、回転力伝達面は少なくとも１つの面を有するとともに、その面の法線を軸線方向から見たときに該軸線を中心とした半径方向に対して平行である成分を含み、回転力伝達面には、凹部の内面に接する窪みを有する。【選択図】図２３

端部部材、感光体ドラムユニット、及びプロセスカートリッジ

【課題】三角形断面を有して深さ方向にねじれた形態の穴に適用する場合であっても回転駆動力を十分に伝達し、駆動軸及び軸受部材に生じる傷や打痕を抑制し、装置本体と感光体ドラムとの着脱が円滑である端部部材を提供する。【解決手段】断面形状が略三角形で軸線が延びる方向にはねじれた穴である凹部を有する駆動軸が備えられた画像形成装置本体に対して取り外し可能に装着される感光体ドラムユニットの端部に配置される端部部材であって、凹部に係合及び離脱可能な突起状の軸受部材が備えられ、軸受部材は軸線を囲むように所定の間隔で配置された複数の爪を有し、爪は凹部の内面に接触し、駆動軸の回転のときに凹部に引っ掛かり回転力を伝達する回転力伝達面を具備し、回転力伝達面は少なくとも１つの面を有するとともに、その面の法線を軸線方向から見たときに該軸線を中心とした半径方向に対して法線がα度の角度を成す成分を含み、αは、絶対値で０度より大きく９０度以下である。【選択図】図７

Process cartridge and image forming device

An image forming device, including a cylindrical photoreceptor drum, an end member having a tubular body which is mounted at an end portion of the photoreceptor drum and which has an outer circumferential surface serving as a sliding surface, and a bearing configured to have a hole which defines an inner peripheral surface that corresponds to a sliding surface, the bearing supporting the tubular body of the end member by inserting the tubular body into the hole, wherein a difference between an outside diameter of a part provided with the sliding surface of the end member and a diameter of the hole of the bearing is equal to or more than 0.06 mm and equal to or less than 0.5 mm.

端部部材、感光体ドラムユニット、及びプロセスカートリッジ

【課題】回転駆動力を十分に伝達しつつ駆動軸及び軸受部材に生じる傷や打痕を抑制するとともに装置本体と感光体ドラムとの着脱が円滑であり、生産性にも優れる端部部材を提供する。 【解決手段】断面形状が略三角形のねじれた穴である凹部を有する駆動軸が備えられた画像形成装置本体に対して取り外し可能に装着される感光体ドラムユニットの端部に配置される端部部材であって、凹部に係合及び離脱可能な凸状の軸受部材が備えられ、軸受部材は、その外周面の軸方向にアンダーカット部がなく、軸が延びる方向に直交する断面のうち外周形状が六角形であり、凹部の断面形状略三角形を含む最小の三角形の外接円の半径をＲ １ｈ とし、軸受部材の断面六角形を構成する辺のうち、互いに隣接しない３つの辺を含む三角形の外接円の半径をＲ １ｐ としたとき、０．８５≦Ｒ １ｐ ／Ｒ １ｈ ≦１．０７である。 【選択図】図７

端部部材、感光体ドラムユニット、及びプロセスカートリッジ

【課題】回転駆動力を十分に伝達し、駆動軸及び軸受部材に生じる傷や打痕を抑制し、装置本体と感光体ドラムとの着脱が確実であるとともに円滑であり、生産性にも優れる端部部材を提供する。 【解決手段】断面形状が略三角形で軸線が延びる方向にはねじれた穴である凹部を有する駆動軸が備えられた画像形成装置本体に対して取り外し可能に装着される感光体ドラムユニットの端部に配置される端部部材２０であって、凹部に係合及び離脱可能な凸状の軸受部材３０が備えられ、軸受部材はその外周面の軸線に沿った方向にアンダーカット部がなく、軸線が延びる方向に直交する断面のうち外周形状が多角形であり、多角形は、凹部の内面に接触し、駆動軸の回転のときに凹部に引っ掛かり回転力を伝達する頂部である少なくとも３つの回転力伝達頂部と、凹部に接する少なくとも１つの辺である回転力伝達辺とを有し、外周形状が４角形、５角形、又は７角形以上の多角形である。 【選択図】図７

Bearing member, end member, photosensitive drum unit, process cartridge, and method for manufacturing bearing member

A bearing member placed at an end of a photosensitive drum, and a shaft member is attached thereto. The bearing member has a cylindrical body and a retaining portion placed in the cylindrical body, retaining a torque transmission pin provided in the shaft member, and removably provided. The retaining portion is provided with swaying grooves at least two grooves extending in an axial direction of the cylindrical body, placed opposite each other, and whose bottoms have each a curved surface exhibiting a bow with respect to the axial direction; inlet grooves at one end thereof connected to the respective swaying grooves and at the other end thereof connected to outside of the retaining portion and placed at an upstream position with respect to the swaying grooves along a direction of rotation of the cylindrical body; and a pedestal interposed, at one end, between the two swaying grooves.

屋根ユニット及び屋根構造並びに屋根構築工法

(57)【要約】 【課題】 金属形材、特に様々な特長を有するアルミ押 出形材を骨組材として用いつつ、それ自体の組立性や建 物への設置効率に優れた屋根ユニットや、施工性に優れ た高品質の屋根構造及び屋根構築工法を提案すること。 【解決手段】 連結面Ｊ１に立設される小屋組トラス１ ０を有する屋根ユニット１０１を水平方向に複数個連結 して建物の屋根を構築する。隣り合う屋根ユニット１０ １の小屋組トラス１０を連結面Ｊ１で対向させ、両小屋 組トラス１０の上弦材１１同士又は下弦材１２同士が束 １３又は方杖１４の接合位置において接合具で接合され てなる。また、各部材は好適にはアルミ押出形材からな る。

耐火屋根用パネルの連結構造

(57)【要約】 【課題】 軽量に富み、かつ高温下における変形による 連結部の耐火性の維持を図れるようにすること。 【解決手段】 それぞれアルミニウム製部材にて形成さ れる一対の表面板１と、両表面板１の辺部間に介在され る枠材１０と、両表面板１と枠材１０とで形成される空 間内に介在されるコア材２と、を一体形成してなる耐火 屋根用パネルＰ同士を連結するに当たって、枠材１０ に、外方に向かって突出する凸条１４を形成し、連結さ れる両パネルＰの凸条１４の上面及び下面にそれぞれ上 部連結部材２０と下部連結部材２１とを係合すると共 に、これら上部連結部材２０と下部連結部材２１を締結 部材であるボルト３１とナット３２にて締結して、両パ ネルＰの凸条１４を挟持する。これにより、火災時の高 温下におかれた両パネルＰの連結部（目地部）が開いて 延焼するのを防止することができる。

端部部材、プロセスカートリッジ、及びプロセスカートリッジの離脱方法

【課題】適切な回転力の伝達、及び装置本体との円滑な着脱を可能とする端部部材を提供する。 【解決手段】筒状の軸受部材と、軸受部材に保持される軸部材と、を有し、軸部材は、軸線回りの回動により軸線方向に移動する回動軸、回動軸の一方の端部に配置され、画像形成装置本体の駆動軸に係合する係合部材を具備する回転力受け部材、及び、押圧することにより回動軸又は回転力受け部材に対して係合又は離脱し、係合部材が駆動軸に係合する姿勢と係合しない姿勢とを切り替える規制部材、を備える。 【選択図】図６

制震装置

【課題】建築物等の構造部材に加わる圧縮力及び引張力等の外力を外力吸収ダンパ全体が均等に吸収して制震性能の向上を図れるようにする。 【解決手段】建築物の土台１と柱２ａ，２ｂ及び横架材３等の構造部材で形成される矩形の空間部４における柱と土台又は横架材間に架設される補強部材間に履歴ダンパ２０を介在する。外力吸収ダンパを、外力の作用方向に沿って配列される複数の中空部２３を区画する複数のリブ２２を有する、中空部及びリブが外力に応じて変形可能なアルミニウム製押出形材にて形成する。補強部材を、基端部が構造部材に固定される断面矩形状のアルミニウム製中空押出形材にて形成される第１及び第２の補強部材１１，１２にて形成し、第１及び第２の補強部材の先端部に、外力の作用によって互いに干渉するのを防止すべく切欠部１５を形成し、外力吸収ダンパの長手方向に沿う対向する外側面に面接触した状態で固定される連結片１６を有する。 【選択図】図１

ダイアフラムポンプ

【課題】１つのノズルで吸込と吐出のいずれかを実行することを、手動でなく切り替え可能なダイアフラムポンプを提供する。【解決手段】複数の変形部１４を有するダイアフラム１２と、一方側にダイアフラム１６が配置され、他方側に吸込口３０及び吐出口３２が設けられたポンプ室１６と、モータ２０と、モータ２０の回転軸２２に取り付けられ、各変形部１４を変形させるように回転軸２２から外径方向に突出した位置の回転変形部２４と、ポンプ室１６の吸込口３０と吐出口３２のいずれか一方と連通する吸排ノズル３４と、吸排ノズル３４と吸込口３０及び吐出口３２との間に設けられ、吸込口３０を吸排ノズル３４に連通させるか、又は吐出口３２を吸排ノズル３４に連通させるかを切り換える流路切換部４０と、流路切換部４０の切換動作を行う切換駆動装置５０と、を具備する。【選択図】図１

Shaft-member detachment method and shaft-member detaching tool

集光装置の生産方法、集光装置、および光発電装置

【課題】集光装置の特定の領域に正確に接合部を設ける。 【解決手段】第１入射面から入射した光を集光した後に偏向させて第１出射面から出射させる第１プリズム部材と、第２入射面から入射した光を第１反射面と第２反射面により順次反射させて第２出射面から出射させる第２プリズム部材とを接続する集光装置の生産方法であって、第１プリズム部材と第２プリズム部材を、第１プリズム部材の複数の第１出射面と、複数の第１出射面の各々に対応する第２プリズム部材の複数の第２入射面とが所定の位置関係となるように位置決めする位置決め工程と、第１プリズム部材の複数の第１出射面と第２プリズム部材の複数の第２入射面とを接続する接続工程と、を有する。 【選択図】図２

端部部材、円柱状回転体ユニット、プロセスカートリッジ

【課題】はすば歯車を用いつつも、スラスト方向への位置ズレに対して問題が生じ難く、設計の自由度を高めることができる、端部部材を提供する。【解決手段】画像形成装置に具備される円柱状回転体の端部に装着される端部部材２０であって、外周に歯車が形成された歯車部３０を有しており、歯車部は、第一の歯車形状と、該第一の歯車形状とは異なる形状の第二の歯車形状と、が混合して配置された少なくとも１つの混合歯車部３２を備え、第一の歯車形状及び第二の歯車形状の少なくとも一方ははすば歯車である。【選択図】図３

軸受部材、端部部材、感光体ドラムユニット、プロセスカートリッジ、及び軸受部材の製造方法

【課題】従来と同等の回転力の伝達、及び装置本体との着脱を可能としつつ、精度よく、破損等の不具合を抑制して簡易に生産することができる、軸受部材を提供する。 【解決手段】感光体ドラムの端部に配置され、軸部材が取り付けられる軸受部材４５であって、筒状体４６と、筒状体の内側に配置され、軸部材が具備する回転力伝達ピンを保持及び着脱可能に設けられた保持部５０と、を有し、保持部は、筒状体の軸方向に沿って延び、対抗して設けられる少なくとも２つの溝であり、該溝の底が軸方向に沿った方向に対して湾曲した曲面を有する揺動溝５１ｂ、５５ｂと、一端が揺動溝に、他端が保持部の外側に連通する溝であり、揺動溝より筒状体の回転方向上流側に配置されている、導入溝５１ａ、５５ａと、２つの揺動溝の一端側の間に設けられた台座部６０と、を備える。 【選択図】図３

感光体ドラム用伝達装置

【課題】従来よりも中間部材、ギア部材、伝達ユニットを柔軟に取り付けることができる伝達装置を提供する。 【解決手段】ギア部材と、ギア部材に着脱可能に取り付けられ、案内溝を備えた中間部材と、軸を備え、該軸には軸から半径方向外側に延びる少なくとも１つの突起が設けられている伝達ユニットと、を有し、案内溝は突起が案内溝に沿って軸方向に移動可能であり、案内溝に対し回転可能に形成されている、伝達装置。 【選択図】図１

端部部材、感光体ドラムユニット、及びプロセスカートリッジ

【課題】感光体ドラムの回転の安定性を向上させることができる端部部材を提供する。【解決手段】断面形状が略三角形で軸線が延びる方向にはねじれた穴である凹部を有する駆動軸が備えられた画像形成装置本体に対して取り外し可能に装着される感光体ドラムユニットの端部に配置される端部部材であって、凹部に係合及び離脱可能な凸状の軸受部材が備えられ、軸受部材の外周面の少なくとも一部には、凹部の開口の縁が係合するべき窪みが形成されている。【選択図】図４

Bearing member, end section member, photoreceptor drum unit, and method for manufacturing bearing member

半導体装置の電気テスト用ソケット

【課題】 板バネ方式のコンタクトにおいて曲げ応力を軽減でき、コンタクト１ピンあたり３００ｇｆを超える高い接触力の要求を満足できる半導体装置の電気テスト用ソケットを提供すること。 【解決手段】底部、側部および半導体装置載置部からなるベース部材、一端が該ベース部材の底部に固定された板バネコンタクトおよびコイルバネ、ならびに該ベース部材に回転可能に取り付けられたラッチからなり、該コイルバネの他端は該ラッチの押圧部底面に固定され、該ラッチは該ラッチの先端部が少なくとも押圧解除時に該板バネコンタクト先端部と接するように取り付けられている半導体装置の電気テスト用ソケット。 【選択図】図１

Ｉｃソケット及びロケータ

(57)【要約】 【課題】バーンイン用ＩＣソケット 【解決手段】ソケットボディ１２に近接する位置と離隔 する位置との間を移動可能なロケータ２０のガイドプレ ート８０に、ソケットボディ１２から延びるソルダレッ グ１８ａの端子列に対応する複数の通孔列９０〜９６を 形成し、各通孔列中に、ソルダレッグ１８ａを屈曲させ ることなくその軸線方向に沿って挿通するストレート孔 ９８と、ソルダレッグ１８ａを隣接する通孔列から離隔 する方向に屈曲させて挿通するベンド孔１００とを交互 に配置し、各通孔の出口開口部で形成する出口開口列９ ０ａ〜９６ａ，９０ｂ〜９６ｂを、ソケットボディ１２ から延びるソルダレッグ１８ａの端子列よりも大きな間 隔で配列したＩＣソケット。

斜材と横架材との接合構造

(57)【要約】 【課題】 屋根架構を構築するために傾斜して架け渡さ れる斜材と該斜材を下方から支持する横架材との交差部 における斜材と横架材との接合構造であって、容易にか つ確実に接合することのできる斜材と横架材との接合構 造を提案すること。 【解決手段】 屋根架構を構築するために傾斜して架け 渡される斜材１１と、斜材１１を下方から支持する横架 材２１との交差部における斜材１１と横架材２１との接 合構造１であって、斜材１１は、好適にはアルミニウム 合金製の押出形材からなり、下面が開口した断面溝形の 溝部１１ａを有し、横架材２１には、溝部１１ａへ嵌合 可能で横架材２１よりも上方に突出する凸部３１ａを有 する接合部材３１が固定され、斜材１１は、溝部１１ａ に嵌合された凸部３１ａに固定される。また、接合部材 ３１は、好適にはアルミニウム合金製の押出形材もしく はアルミニウム合金製の鋳物からなる。

集合住宅の配管ユニット

(57)【要約】 【課題】集合住宅における複数階の外側にまたがって垂 直に取り付けられ、軽量で且つ取り付けが容易な集合住 宅の配管ユニットを提供する。 【解決手段】集合住宅において複数階にわたり当該集合 住宅を構成する建物Ｍの外部に垂直方向に配置される配 管ユニットＵであって、各階の高さに相当する高さを有 する個々の配管ユニットＵ１〜Ｕ３を上下に連続して建 物の外側に取り付けて構成される。各配管ユニットＵ１ 〜Ｕ３は、必要な配管Ｐ，ｐや機器が内蔵され、且つそ れらは、平面視でほぼコ字形を呈して上記開放廊下側に 開口する複数のハウジングＨ１〜Ｈ３で覆われる。係る ハウジングＨ１〜Ｈ３は、内外一対の金属板８，８とそ の間に挟持したハニカムコアの心材９とからなるサンド イッチパネルにより形成されると共に、係るパネルは、 平面視でほぼＬ字形を呈する左右一対の側パネル４，５ と、これらの間に配置され且つ平面視でほぼ一字形の平 パネル６とからなる。

部材同士の接合構造及びそれを用いたキャットウォーク

【課題】第１の部材と第２の部材の取付位置調節を容易に行う部材同士の接合構造及びそれを用いたキャットウォークを提供する。 【解決手段】第１の部材である梁材１をベース材３と調整材２を介して第２の部材である構造材Ｗに固定する接合構造において、ベース材及び調整材の高さ方向幅を梁材より大きく形成し、調整材に第１の挿通孔２０と第２の挿通孔２１を設け、ベース材に構造材側における調整材の固定箇所に相当する領域に凹部３２を設け、凹部にベース材固定用ボルト８１と螺合するナット９０を回転阻止された状態で配設し、凹部の第２の挿通孔に相当する位置に第２の挿通孔より大径の第３の挿通孔３４を設け、第１の部材固定用ボルト８０を第１の挿通孔を介して梁材の端部に螺合して調整材と梁材とを固定し、ベース材固定用ボルトを第２の挿通孔及び第３の挿通孔を介してナットに螺合することで調整材及び梁材とベース材を位置調節可能に固定する。 【選択図】 図３

棟部材

(57)【要約】 【課題】 流れ方向の異なる２つの屋根面の交差部であ る大棟、隅棟あるいは谷などに沿って配設される棟部材 であって、容易にかつ安価に製造可能であり、さらに軽 量で作業性のよい棟部材を提案すること。 【解決手段】 棟部材１は、好適にはアルミニウム合金 製の押出形材からなり、棟部材１の上面２を、屋根面に 沿って傾斜する２つの傾斜面２ａ，２ｂにより断面逆Ｖ 字形状に成形する。また、棟部材１の側面３ａ，３ｂ に、それぞれ傾斜面２ａ，２ｂと平行に外側へ張り出す 張出部４ａ，４ｂを形成する。また、棟部材１に、側面 ３ａ，３ｂと補強部５とにより、下面が開口した断面溝 形の溝部７を形成する。

Process cartridge, and method of separating process cartridge

防水塗装方法

【課題】壁面に形成された塗膜の膜厚を、渦電流式膜厚計を用いて上下方向で詳細に確認することが可能な防水塗装方法を提供することを目的とする。【解決手段】本発明にかかる防水塗装方法の構成は、壁面１０２に左右方向で所定間隔ごとに上下方向に延びる導電性テープ１１０を貼着し、壁面１０２に防水塗料を塗布することにより防水塗膜１３０を形成し、渦電流式膜厚計１００を用いて導電性テープ１１０上の防水塗膜１３０の膜厚を測定することを特徴とする。【選択図】 図１

防音構造体

【課題】通気性、採光性を有しながら空気の流れによる笛鳴り現象を抑制し、防音性に優れた防音構造体を得る。。 【解決手段】複数の中空体１が間隔を空けて並設されてなる防音構造体であって、各中空体１は、ヘルムホルツ共鳴器として機能する中空部１４を有し、中空体１の並設方向の側面には、中空部１４に連通して長手方向に延びる開口部が設けられており、音が入射される側となる前部１１側には、中空体１の側面に沿う空気の流れを不規則な方向に変化させる不規則流発生部が設けられている構成とした。 【選択図】図２

階段

【課題】軽構造で、軽快な印象を与えることができる階段であって、強度が高く、かつ、生産・施工効率のよい階段を提供すること。 【解決手段】階段勾配で傾斜する左右一対の桁材たる平面トラス構造体１０，１０と、この平面トラス構造体１０，１０上に配設される複数の踏板４０とで階段を構成し、平面トラス構造体１０，１０の側面（トラス面）を逆ハ字状に対向させる。また、左右の平面トラス構造体１０，１０を連結材で互いに連結するとともに、平面トラス構造体１０の上弦材に沿って補強材を配置する。 【選択図】 図１

端部部材の製造方法、及び感光体ドラムユニットの製造方法

【課題】端部部材と感光体ドラムとの接着性を簡易に高めることができる端部部材の製造方法を提供する。 【解決手段】感光体ドラムユニットの感光体ドラムの端部に装着される端部部材２０を製造する方法であって、端部部材の一方の端部となり、感光体ドラムの内側に挿入されるべき部位である嵌合部の外表面を切削加工する工程、又は嵌合部の外表面に切り込みを入れる工程を有し、切削加工又は切り込みを入れる工程は、端部部材の一方の端部側に向けて切削又は切り込みがされるように端部部材又は工具５０を移動させる。 【選択図】図４

電子機器及びストラップ

【課題】簡易な構成によって、様々な種類の電子機器である接続対象機器を接続可能であり、かつ、外部電気機器が接続された場合に邪魔にならないような、電子機器及びストラップを提供することにある。 【解決手段】携帯型ゲーム機１は、筐体と、前記筐体に設けられるストラップ取付部３と、を有し、ストラップ取付部３には、接続対象機器への電力供給が可能な電力供給端子、前記接続対象機器との情報信号の入出力が可能な信号入出力端子のいずれかが設けられている端子部を含んでいる。 【選択図】図１

Bearing member, end section member, photoreceptor drum unit, and method for manufacturing bearing member

軸受部材、端部部材、感光体ドラムユニット、現像ローラユニット、プロセスカートリッジ、中間部材、及び軸受部材の本体

【課題】従来と同等の回転力の伝達、及び装置本体との着脱を可能としつつ、より円滑に作動し、軸部材の品質のばらつきに対しても影響を受け難い、軸受部材を提供する。 【解決手段】円柱状回転体の端部に配置され、軸部材（７０）が取り付けられる軸受部材（４１）であって、筒状体（４６）及び該筒状体の内側に配置される保持部（５０）を有する本体（４５）と、本体の保持部に保持される中間部材（６０）と、を備え、保持部は、中間部材が回動するように中間部材を案内する中間部材ガイド（５１、５２、５３、５４）を有し、中間部材は、軸部材が配置される部位を具備する。 【選択図】図３

基板の研削装置

【課題】サファイアやＳｉＣ等の基板を精度良く、さらに高速に研削する基板の研削装置を提供する。 【解決手段】 保持テーブル４上に保持された基板Ｗの研削装置において、基板Ｗを粗研削する粗研削ポジションｂと、基板Ｗを中研削する中研削ポジションｃと、基板Ｗを仕上げ研削する仕上げ研削ポジションｄとを設定し、粗研削ポジションｂと、中研削ポジションｃと、仕上げ研削ポジションｄとにそれぞれ研削装置を設けるとともにこれらの研削装置を直線状に配置して構成し、基板Ｗを粗研削、中研削、仕上げ研削の順に直列的に処理するようにする。 【選択図】図１

制震構造

【課題】地震力等の外力が加わった場合にダンパが設計で意図した変形モードに変形できる制震構造を提供する。【解決手段】木造の隣り合う柱３，３間に、ブレース６を横Ｖ字状に配置するとともに、ブレース６，６を、外力吸収ダンパ３０を介して一方の柱３に接続する制震構造であって、外力吸収ダンパ３０は、中空押出形材からなり、中空押出形材は、間隔をあけて配置された一対の側板１１，１１と、一対の側板１１，１１間に配置された複数のリブ１２，１２・・とを備えており、両ブレース６，６の軸芯線Ｌ１，Ｌ１の延長線同士の交点Ａは、柱３の外側に位置するとともに、両側板１１，１１の中間部（中心線Ｌ２）よりも外力吸収ダンパ３０が取り付けられた柱３に寄った部分に位置していることを特徴とする。【選択図】図２

配管挿通部のシール構造

【課題】配管の挿通位置が配管挿通孔の芯から外れている場合にも、容易かつ確実にシールを行うことができ、しかも簡易な構造で短時間に取り付けおよび取り外しを行うことができて経済性にも優れる配管挿通部のシール構造を提供する。 【解決手段】配管Ｐの一部を覆って内部が大気圧に対して負圧に保持されるシールボックス１の配管Ｐの挿通部２と、挿通部２から延出する配管Ｐとの間を気密に封じる配管挿通部のシール構造であって、配管の挿通部には、配管Ｐの外周を囲繞する円筒状の鍔部２が形成され、鍔部２と配管Ｐの外周とにわたって、硬度が２０°以下の超低硬度シリコンゴムシート５が、少なくとも巻始め端部および巻終わり端部を重複させて巻回されてなる。 【選択図】図２

店舗等地図表示方法及び店舗等地図表示装置並びに店舗等地図表示システム

(57)【要約】 【課題】 画面上に表示する地図に存在する店舗等の位 置を視認性を高めた状態で表示させる。 【解決手段】 所定の地図を画面に表示し、この画面上 の地図に存在している業種に分類されている店舗等を特 定し、この特定した業種に当て嵌まる店舗等の表示より も、この特定した業種に当て嵌まらない店舗等の表示を 識別性を持たせて表示するようにする。

配管の密閉切断装置および密閉切断方法

【課題】配管を確実に閉止して切断することができるとともに、作業性にも優れる配管の密閉切断装置およびこれを用いた密閉切断方法を提供する。 【解決手段】配管Ｐの圧縮箇所Ａを含んで配管の外周を気密的に覆うシールボックス１と、シールボックス１内において圧縮箇所を囲繞する加熱コイル３を備えた高周波誘導加熱装置と、シールボックス内に不活性ガスを導入させる不活性ガスの供給ライン７と、シールボックス内の酸素を排気させる排気ライン１１と、配管の圧縮箇所を間に挟んだ両側の外周を一体的に把持して固定する配管固定具１４と、高周波誘導加熱装置を制御して加熱コイル３によって圧縮箇所Ａを７００℃以上であって溶融温度以下の温度範囲に予熱した後に出力を上げて溶融温度以上まで昇温させる制御手段を有してなる。 【選択図】図１

ハニカムパネル

(57)【要約】 【課題】 枠材のコア材側角部への応力集中を緩和させ て強度性の向上を図れるようにすること。 【解決手段】 一対の表面板１と、これら表面板１間に 介在されるコア材２と、両表面板１の辺部間に介在され る枠材３とからなるハニカムパネルにおいて、表面板１ に接する枠材３におけるコア材側部位に、フランジ部３ ｂを突設すると共に、このフランジ部３ｂを先端から基 端側に向かって肉厚に形成する。これにより、枠材３の コア材側角部への応力集中を分散させて緩和させること ができる。

建物用制振部材

【課題】地震などに伴う大きな振動エネルギーを受けてもこれを十分に吸収して、建物を効果的に保護することが可能な建物用制振部材を提供する。 【解決手段】アルミニウム合金からなる複数の剛性部材と、かかる複数の剛性部材の間に挟持される粘弾性体ｅと、を含み、上記複数の剛性部材は、断面ほぼ板形状の押出形材１ａ〜１ｃからなり、かかる複数の押出形材１ａ〜１ｃにおける押出方向と直交する方向に沿って隣接するフランジ（端部）３，６において、一方の押出形材１ａ，１ｂには、複数の凹溝８が設けられ、他方の押出形材１ｂ，１ｃには、凹溝８内に上記粘弾性体ｅを挟んで挿入された複数の凸条５が設けられている、建物用制振部材である壁面ユニット１０ａ。 【選択図】 図３

建築物の防蟻構造

【課題】防蟻材の強度を損なうことなく、柱材への嵌装を容易にし、白蟻の侵入・食害を確実に防止する防蟻材を柱材に装着することができるようにした建築物の防蟻構造を提供する。 【解決手段】建築物を白蟻の侵入及び食害から防ぐ建築物の防蟻構造において、建築物の基礎１上に敷設される土台２に立設される柱材４の所定高さ以下の部分における表面部分に、スペーサ２０を介して白蟻に対する耐食性を有する防蟻材１０を嵌装する。防蟻材は、スペーサを介在する当接片１２に多数の通気孔１６を設け、スペーサは、多数の通気孔２３を設けると共に、防蟻材側の表面に、白蟻の通過を阻止する高さの凸条２２を設ける。防蟻材の嵌装状態においては、防蟻材の通気孔とスペーサの通気孔は互いに相通していない関係にある。これにより、防蟻材の強度を損なうことなく、柱材への嵌装を容易にし、かつ白蟻の侵入・食害を確実に防止する防蟻材を柱材に装着することができる。 【選択図】 図２

建築物の防蟻構造

【課題】柱材に寸法上の歪みが生じていても白蟻の侵入・食害を確実に防止する防蟻材を柱材に容易に装着することができるようにした建築物の防蟻構造を提供する。 【解決手段】建築物を白蟻の侵入及び食害から防ぐ建築物の防蟻構造において、建築物の基礎１上に敷設される土台２に立設される柱材４の所定高さ以下の部分における表面に、２つの断面略Ｌ字形状の白蟻に対する耐食性を有する防蟻材１０を柱材４の隣接面に当接すべく対角線方向から嵌装する。これにより、柱材に寸法上の歪みが生じていても白蟻の侵入・食害を確実に防止する防蟻材を柱材に容易に装着することができる。 【選択図】 図２

Processing cartridge, photoreceptor drum unit, and end member pair

A photoreceptor drum unit is provided with a cylindrical photoreceptor drum, and two end members which are respectively disposed at both ends of the photoreceptor drum in an axial direction. One of the end members is provided with an elastic member, is biased in the axial direction, and is extendable and contractable. The other of the end members is provided with a cylindrical bearing member and a shaft member held in the bearing member.

End member which allows transmission of rotary power

Provided is an end member which allows appropriate transmission of rotary power, and smooth attachment and detachment with respect to an apparatus body. The end member includes a tubular bearing member and a shaft member that is held by the bearing member. The shaft member includes a turning shaft which moves in an axial line direction in accordance with turning about an axial line, a rotary power reception member which is arranged at one end of the turning shaft and includes an engagement member engaging with a drive shaft of an image forming apparatus body, and a regulation member which is pressed to engage with or be detached from the turning shaft or the rotary power reception member, whereby the engagement member switches between an engagement posture and a non-engagement posture with respect to the drive shaft

Bearing member, end member, photoreceptor-drum unit, and process cartridge

There is provided a bearing member which is disposed at an end section of a photoreceptor drum for attaching a shaft member that transmits a rotating force to the bearing member, the bearing member including a tubular body, and a holding section which is disposed inside the tubular body attachably and detachably, and holds a rotating force transmission pin provided in the shaft member, wherein the holding section includes at least two swing grooves provided extending along an axial direction of the tubular body, and opposing each other, and introduction grooves, each having one end communicating with the swing groove and the other end communicating with an outside of the swing groove, and the introduction grooves in a posture in which the shaft member transmits the rotating force are disposed entirely at a position to be lower than an entirety or a part of the rotating force transmission pin.

柱梁用接合構造

【課題】 接合部材の製造および現場での柱梁の組み立て作業が容易な柱梁用接合構造を提供する。 【解決手段】 少なくとも長手方向の一面２ａに肉厚部６ａを備えた柱２、リブ１３，１３により分割された複数の中空部１４，１４，１４を備えた梁３、貫通孔５ｃを有する膨出部５ｂと係合プレート部５ａとを備えた副接合部材５，５の断面形状の各々を各部で均一とし、柱２，梁３，副接合部材５の押出成形を可能とし、接合部材の製造に関わる溶接作業をなくす。主接合部材４を予め柱２に固着し、主接合部材４を梁３の中空部１４の端部に突入させて梁３の上下移動を拘束することで、柱２に対する梁３の組み付け作業を容易化する。 【選択図】図１

Process cartridge for image forming apparatus and method of separating process cartridge from image forming apparatus

Provided is an end member which allows appropriate transmission of rotary power, and smooth attachment and detachment with respect to an apparatus body. The end member includes a tubular bearing member and a shaft member that is held by the bearing member. The shaft member includes a turning shaft which moves in an axial line direction in accordance with turning about an axial line, a rotary power reception member which is arranged at one end of the turning shaft and includes an engagement member engaging with a drive shaft of an image forming apparatus body, and a regulation member which is pressed to engage with or be detached from the turning shaft or the rotary power reception member, whereby the engagement member switches between an engagement posture and a non-engagement posture with respect to the drive shaft.

Bearing member, end section member, photoreceptor drum unit, and method for manufacturing bearing member

A bearing member includes a concave section receiving a spherical body therein, and swing grooves into which end sections of a rotating force transmission pin are inserted. The swing groove at least includes a parallel part an axis and a curved part, an undercut section is not provided in the concave section when the concave section is viewed from an opened side of the concave section in a direction of the axis of the bearing member, and a clearance between the two swing grooves in a direction which is orthogonal to the direction of the axis on the opened side of the concave section is shorter than a distance between both ends of the rotating force transmission pin in the direction which is orthogonal to the axis of the bearing member even when the shaft member is mounted on the bearing member in a posture inclined at the most.

End portion member, photosensitive drum unit and process cartridge

A bearing member engageable and disengageable from a recessed portion of an image forming apparatus body is included. While the bearing member is engaged into the recessed portion, a cross-sectional area occupancy ratio which is a degree of area occupied by a cross-section of the bearing member to a cross-section of the recessed portion is 15% or higher and 75% or less. An outer peripheral shape of the bearing member in a cross-section is a hexagon, and assuming that a radius of a circumscribed circle of the hexagon is r 1g , and when a hexagon is formed by sides enclosed by a triangle formed at an opening of the recessed portion when the recessed portion is viewed from a front in the axial direction and a triangle formed at a bottom of the recessed portion, a radius of an inscribed circle of the hexagon is r 2h , r 1g −r 2h >0.