PIPE CLAMP

The invention relates to a pipe clamp for connecting a pipe to a wall, ceiling or another support.

From EP 0,908,637 is known a pipe clamp, wherein the clamping screw is inserted in a spring nut, which is supported on the second flange of the clip body a hinged manner, while the head of the clamping screw can grip behind the lips of the first flange. Zum lock controlled & Nkulengu rail; en the pipe clamp can be pressed deeper into the spring nut the clamping screw and it is not necessary, to rotate the clamping screw, so that mounting time can be saved. The spring nut is made of spring steel.

From EP 1,022,502 is known a pipe clamp, wherein the has a first flange can engage with lips pipe clamp body , behind which the head of a tightening screw. Continue this known pipe clamp has no flange at the other free end of the clip body, but a spring nut connected pivotably coupled to the clip body. This known spring nut is made of spring steel and is designed in such a way that upon tightening is pressed with a finger to the tension member, while at the same time two other fingers on the spring nut press operating lips , so that the mold elements of the spring nut are spread apart slightly deeper into the spring nut and the clamping element can be pressed.

These known pipe clamps, in particular their [...] , a difficult optimisation draft to have, and it has been found when the effect is that they are hard to produce an acceptable manufacture price in the manufacture. Especially it has proven to be difficult to find a suitable compromise in the design of EP 0,908,637 between the force, the must be exercised, in order to press the clamping screw further into the spring nut on the one hand and the [...] & Nkulengu rail; holding force of the spring nut, on the other hand, protected when using obtained. In carrying out according to & Nkulengu rail; EP 1,022,502 is that problem practically non-existent, but the preparation is the spring nut of spring steel having a complex configuration problematic at moderate cost.

The invention intends to lift these disadvantages, and a pipe clamp with improved spring nut to create, the enables a simple and rapid fastening of the pipe clamp is reliably and to produce an attractive amount is.

The invention creates thereto a pipe clamp according to claim 1.

The spring nut is preferably designed in such a manner that an axial displacement of the tightening element relative to the spring nut, wherein the distance between the head of the tightening element and the spring nut is reduced can be realized, manually. The loosening of the tightening element can take place preferably only, by the clamping element is solved.

A plastic part and a metal part has spring nut The, which parts engage each have one or more shaped elements, on the shank of the tightening element and thus the clamping element the secure against pulling in the axial direction from the spring nut.

Preferably the shaft is of the clamping element with a Au & Nkulengu rail; close-winds or another Au & Nkulengu rail; and it is the mold elements of the spring nut [...] provided with a complementary profile provided to that profile acting.

One or more segments of an internal thread form of the plastic part, for example, the mold elements, preferably a plurality of turns of the thread profile of the clamping element on the attack.

The attack of the mold members of the metal part to the shank of the tightening element ensures that in the event of failure, of the plastic part of the spring nut, for example by its melting at fire, said gripping member is not detached from the spring nut, but at least some time remains hanging. This undesirable opening is avoided the pipe clamp at least some time, a need is what the [...] ago.

Also the metal part, the spring nut on a proportion of the total mechanical strains on the spring nut, whereby the mechanical load on the plastic part of the spring nut is less than would be present if no metal part. Since the mechanical loading capacity of the commonly available plastics is substantially lower than that of normal metals, such as steel (spring), this is an advantage in the dimensioning of the plastic part of the spring nut.

Preferably, and in a preferred embodiment the spring nut is connected with the opposite the movable pipe clamp bodypipe clamp body , preferably a hinged manner.

In an advantageous embodiment of the clip body is provided with a resilient insert, for example made of rubber, and it is a fixing member of the spring nut to the resilient interlining to. This a resilient attachment is the spring nut on the pipe clamp realized.

In an alternative embodiment, the clamping element is connected with its head by articulation with the clip body. In this embodiment, the spring nut is inserted prior to mounting of a conduit in the pipe clamp on the shank of the tightening element.

The shaped elements are preferably metal member of the spring nut as one or more resilient lips carried out. When the metal part is substantially plate shaped, above all, this leads to its simple and cheap manufacture.

Preferably, the metal portion is the spring nut made of spring steel.

Preferably, the metal piece by a clamping connection with the plastic part is connected the spring nut.

In one advantageous embodiment is located on the side facing the second flange the metal portion of the spring nut the spring nut, so that at those second flange abuts in the closed pipe clamp of the metal part. This supports itself against the second flange when the metal piece from the spring nut is exerted a pulling force on the tensioning element. This the second flange takes much the greater & Nkulengu rail; th [...] & Nkulengu rail part of a; force on the tension member to. So the mechanical stresses remain limited to the plastic section of the spring nut.

Especially with simple embodiments, such as those, wherein the metal portion is substantially plate-shaped, it can occur that a pulling force on the tensioning element leads to a deformation of the mold members, the the [...] & Nkulengu rail; en of the tightening element not prevented. To is suppressed to avoid subjecting this would be tuned, in an advantageous embodiment, the design of the metal part and the said second flange with one another in such a way that the deformation, a tensile force in the tensioning element extending the metal portion of the spring nut under the influence, from the second flange.

In a practically advantageous embodiment thereof is an insertion orifice for the tensioning element provided in the second flange, where the mold elements receives-at the location the push-through opening in the direction of those project over the edge of the mold elements-with little play and the shank of the tightening element. In tensile load to the tension member from the second flange have not only a small then the metal shaping members supported at its end and can thereby [...] & Nkulengu rail length; ig the load applied on the second flange receive and transmit.

To is made possible to simplify the deformation of the metal part on pressing of the tightening element in the spring nut, preferably in the plastic part behind the shaped elements of the metal part a space present, of a free deformation of the metal part under the influence of the further pressing of the tightening element in the spring nut. This implies that the force, which is necessary for the pressures of the tightening element in the spring nut, substantially down.

At the first end of the clip body is In an advantageous embodiment a first flange present is provided with a slot recess, the clip body is enclosed on three sides from the flange is open on the side facing away from of the flange and by the. Consequently a two lips in the first flange, the head of the tightening element stop the pass, while the shank of the tightening element. Preferably, the free ends are the lips [...] & Nkulengu rail; en in the direction remote from the second flange bent over. This an unscheduled relaxation is counteracted by way-slide of the tightening element out of the recess in the first flange of the pipe clip.

The second flange in this advantageous embodiment, an elongated recess for passing the clamping element has, for example, a slotted hole, which is surrounded on all sides by the second flange. The spring nut is connected by articulation with the clip body, and is located just behind the second flange, on the side, facing away from the first flange is. In an alternative embodiment, the spring nut is connected to the second fixed flange by articulation.

In an advantageous embodiment of the clip body comprises two clip parts , are connected to each other by articulation the.

In an advantageous embodiment at least over a part of its inner periphery, with an insert the pipe clip is made of resilient material lined, for example rubber, for damping vibrations and sound. At the same time this insert can be chosen so that this provides for a resilient hinge connection between the two above-mentioned clip parts , and/or for a resilient attachment of the spring nut.

Embodiments a pipe clamp for connecting a pipe to a wall, ceiling or another support according to & Nkulengu rail; of the invention are explained below with reference to the accompanying drawing.

In the drawing show:

1. 1-a first embodiment of a Fig. [...] & Nkulengu rail; en pipe clamp in open position,
2. This first embodiment of a 2- [...] & Nkulengu rail Fig.; en pipe clamp in semi-open position,
3. This first embodiment of a 3-Fig. [...] & Nkulengu rail; en pipe clamp in the closed position,
4. 4-a detail of the first and second fixed flange according to Fig. & Nkulengu rail; the first embodiment,
5. 5-a detail of a spring nut according to & Nkulengu rail Fig.; the first embodiment,
6. 6-a cross-section of a spring nut according to & Nkulengu rail Fig.; the first embodiment,
7. 7-a [...] a spring nut according to & Nkulengu rail Fig.; the first embodiment, and
8. A second embodiment of a 8-Fig. [...] & Nkulengu rail; en pipe clamp, in open position.

Figure 1 shows a first embodiment of a pipe clamp according to & Nkulengu rail; of the invention. The pipe clamp 1 comprises a clip body, made of metal in this example, the after fixing a conduit [...] & Nkulengu rail; t. The opening 2, limited by the first and the second free end of the clip body 1, ensures that the pipe clip can be attached around the conduit. The clip body 1a is provided with a fixing member 1, so as to be able to fasten the clip to a wall or other support, in practice often a nut.

Am first and second free end of the clip body 6 corresponding to a first flange and a second flange 5 are designed. In the pipe clamp according to & Nkulengu rail; this example is located a resilient insert 3, preferably of rubber.

In the first flange 5 is mounted a recess 7, on the side remote from the clip body is open 5 of the flange 1. In this way will create two lips 8 and 9 in the first flange of the first flange 5. In the embodiment shown, the free ends are 5 [...] & Nkulengu rail; en bent over, in the direction remote from the second flange 6.

In the second flange 6 is mounted an elongated recess 10, the, unlike the recess 5 in the first fixed flange 7 is enclosed on all sides from the flange 6.

Zum lock controlled & Nkulengu rail; en and closed holding the pipe clamp comprises a clamping element 15 this, which has a head 16 and a stem 17 15 clamping element. In the embodiment shown, the shank is over the entire length with a Au & Nkulengu rail; close winding profile provided. It is conceivable that only a portion of the shaft 17 is provided with a threaded profile or the like.

The pipe clamp 30 with a metal part and a plastic part has a spring nut 31 31 35. The metal part, which preferably is made from spring steel is substantially plate-shaped. As Fig. 5 shows, the metal piece 31 has the spring nut 30 a frame having therein two mutually facing resilient lips 32a, 32 b. This resilient lips 32a, 32b are so designed that their free ends 33a, 33b lie in the space between adjacent peaks 18 of the thread of the clamping element 15, when the spring nut 15 is mounted on the clamping element 30.

Subsequently Will & Nkulengu rail; end an axial force on the clamping element 15 mounted, while the spring nut 30 is held in place, then bend the resilient lips 32a, 32 b. This the distance between their respective free ends takes 33a, 33b to. If this distance sufficiently gro & Nkulengu rail; has become, the tips of the thread of the clamping element 18 can pass 15. The resilient lips 32a, 32b of the clamping element are designed in such a manner 15 that this shift can be achieved with manual force.

The metal piece 31 34 35 bent one clamping lips firmly clamp on the plastic part.

As Figure 5, 6 and 7 shows, the plastic section 35, the spring nut 30 also a frame having therein two mutually facing resilient lips, the each at its end a shaped element 36a, 36b have. The two shaped elements 36a, 36b are complementary to the shape of the thread on the shaft 17 of the clamping element 37 provide reinforcement of the resilient lips of the plastic part 15 35. stiffening ribs.

The spring nut 30 in the first embodiment comprises a fixing member 38, which is integral with the plastic part 35 of the spring nut 30. This fixing member 38 is inserted through an opening in the clip body 1, which opening 6 is mounted in the vicinity of the second flange, particularly. The Fu & Nkulengu rail; 39 of the fastening member 38 is located between the clip body 1 and the spring nut 30 can resiliently 3. the resilient insert with respect to the second fixed flange hinges By 6.

When lock controlled & Nkulengu rail; ene of pipe clamp effected the Fu & Nkulengu rail; 39 that the spring nut 6 tilts with respect to the second flange 30, so that the tensioning element 15 is in the recess between the lips 7 and 8 and 9 moved the situation of Figure 2 is produced.

[...] & Nkulengu rail; end the distance between the head and the spring nut is reduced 15 16 of the clamping element 30. These preferably occurs by setting of the thumb on the head 16, and the setting of the middle finger of the same hand on the spring nut 30 [...] , at both sides of the opening for the clamping element. Acting to thumb and fingers moved relative to each other, an axial force is exerted and the clamping element is pushed further into the spring nut 15. Lock controlled & Nkulengu rail; a situation arises protected when using, the 3 is comparable with Fig..

When 15 of the clamping element 30 are pressed further into the spring nut the resilient lips 32a pressures, 35 31 in the direction of the plastic part 32b of the metal part. Simply To this to occur, a free space is present between the metal part and the plastic part 50 31 35. The shaped elements 35 of the spring nut 30 are also pressed apart 36 of the plastic part. By the outward bending of the resilient lips 32a, 32b is the distance between their free ends 33a, 33b greater & Nkulengu rail; he. 36a and 36b will also increase mutual distance between the mould members The. Once these distances gro & Nkulengu rail; enough, the clamping element 15 can happen.

The renewed [...] & Nkulengu rail; ern the distance between head 16 and spring nut 30 can only be achieved by a rotational movement of the clamping element with respect to the spring nut 30 15, wherein the thread on the shaft 15 in cooperation with the cam followers 36 of the plastic part 17 of the clamping element 35 and the resilient lips 32a, 32b of the metal part 31 of the spring nut 30 is used.

The [...] & Nkulengu rail; en 42 from the spring nut 30 in the direction 15 of the clamping element (see Fig. 6) under a tensile load, in particular of the supported conduit is counteracted by the design of the spring nut 30 and the interplay between the spring nut 30 and the second flange 6.

The shaped elements 36a, 36b of the plastic part 35 of the spring nut 30 lie [...] & Nkulengu rail; en raptly with respect to the metal part 31 (see Fig. 6). Over obliquely upwardly extending spring lips 51a, 51b are connected to the body 52 of the plastic part 30 35 the spring nut it. If a [...] & Nkulengu rail; 15 mounted on the clamping element is non-positive in the direction 42, the mold elements 42 36a 36b in the direction be entrained. By the oblique arrangement of the spring lips 51a, 51b is reduced the mutual distance between the mould members 36a, 36b. This they make the clamping element is tensioned on to and the resistor 15 against the countered [...] & Nkulengu rail; en of the clamping element 30 from the spring nut 15.

By [...] & Nkulengu rail; 33a is non-positive in the direction the free ends 42, 33b of the resilient lips 32a, 32b in principle also a displacement in the direction imposed on 42. Unlike the form elements 36a, 36b would lie the free ends further apart thereby. The offset of the free ends 33a, 33b of the resilient lips 32a, 32b, however is suppressed by the second flange 6, to which the metal portion 31 of the spring nut 30 bears in this embodiment, when the pipe clip to the said pipe.

Moment suppressing the displacement of the resilient lips 32a, 32b is collected the greater & Nkulengu rail; th [...] & Nkulengu rail part of the; 31 and the second flange 42 by the metal part in a non-positive in the direction 6, whereby the plastic section 35 of the spring nut 30 is loaded less difficult.

In a possible failure of the plastic part 35 of the spring nut 30, for example by melting in the case of fire, the conduit is not immediately disengage from the pipe clamp, because the metal portion 31 of the spring nut 30 still holds the clamping element.

Fig. 8 shows a second embodiment of the pipe clamp according to & Nkulengu rail; of the invention. In this embodiment are both solid flanges 105, 106 provided with a recess, analogous to the recess 7 in Fig. 4.

The Clamping element 115 103 connected by articulation with the clip body is in this embodiment. Precedes to the mounting of a conduit in the loose spring nut is pushed the pipe clamp 115 130 a first piece to the tension member. 131 135 130 comprises a metal part and a plastic part spring nut The, analogous to the spring nut 30 of the first embodiment.

The action of the pipe clamp according to & Nkulengu rail; the second embodiment extends analogously to the pipe clamp according to & Nkulengu rail; the first embodiment.