Sophisticated slicer.

AS AFRICAN AND MALAGASY

INDUSTRIAL PROPERTY

PATENT

In Yaounde (Cameroon) International Patent Classification : 23 b.

N° 02858

OO.AJ ^ P.I. REQUESTED THE 19 July 1968 to 8 hr 00 min

to IOIO.A.M.P.I. (PP.V. № 53,330) by Jeans SAVAIDES residing at Chad.

DELIVERED THE 15 DECEMBER 1970

PRIORITY : Patent application filed in France under the

no. 115,335 24 July 1967 at same name.

Saw improved.

5

• 10

' 15

The present invention relates to machines crosscut metal profiles, bars and similar parts.

The invention has improved a saw pourobjet, automatically operative aveorebdement a high. This saw is remarkable in that it oomprend in combination:

a table work-holder, a tool slide shifted wheat in vertical translation aù above this table, means for rotating the cutting tool, and a device for automatically moving the ohariot tool holder, and in turn the tool in the vertical direction. "

According to another feature the ^ tlf designed and to automatically move the carriage carry tool comprises a disengageable member for rendering the device inoperative.

Other features of the invention will appear at oours of the description which will follow.

The accompanying drawings, given only to

example!

fig. 1 is a side view in elevation of a saw chain aveo wrenchings according the invention;

fig. 2 is a view of faoe;

fig. 3 is a sectional view along line 3 - 2 of Figure 1;

the fig. 4 * is a view of detail sectional and

to larger éohelle the power feeder of 1' tool;

fig. 5 is a plan view of the device with peel of Figure and

fig. 6 is a sectional view along the line 6 - 6 of fig. 5.

According to the embodiment represented, the chainsaw mainly comprises s is a fixed frame comprising an appliance has supports a set work-holder b and by a C pillar along which is slidably mounted a tool slide'd; an engine E implement drive 0, this motor being fixed on a solid concrete elements spaced from the frame f-j and a device for the displacement control; automatic tool, mounted in the frame.

The assembly work-carrier oomprend I build a table of b on a carriage 2 and movable from right to left (Figure 2 on) to a slide 3 grâae dovetail;

the carriage 2 is in turn slidably mounted on the soole has front-to-rear (on the

From adipocytes, 2) also by a slide 4 to tail D.¹ dovetail.

The movement of the carriage 2 on the base is driven by a screw 5 which is integral with the

base and along which can move a

l-nut 6 integral with the carriage 2.

The table 1 is movable relative to the carriage 2 by a screw 7 which is integral with the carriage and along which a nut 8 déplaoer may be integral with the table. This table is arranged to receive profiles (not shown) of suitable dimensions in notches of complementary shape 9_T- longitudinal and transverse.

A removable sheet metal plate 10 closes

an opening... provided at the front of the base to allow, when the EP instead of the carriage and station work-carrier, assembly of the nut 6.

The tool slide d is slidably mounted, above the table-I, along a track II into dovetail (from adipocytes. 3) of the upright 0 C. the tool is a cutting disk attached to one of the ends of a shaft ' 12 mounted freely rotatably in bearings 13 of the carriage (2 and 3 from adipocytes.) · this shaft 12 carries at its opposite end a pulley 14 connected to the engine e by means of V-belts 15 runs over a pulley driven by the engine 16.

For readjusting the length of the belts 15 due to vertical movement of the pulley 14 integral with the carriage d in vertical translation, a roller is provided, tensioner 17 whose support 18 and the counterweight associated 19 are mounted within the frame by means of pins ' 20. The roller 17 is attached to the base 18 by means of an arm 21 protruding outside the post G through a lumen 22 in a circular arc.

The device g of control of automatic displacement of the tool carriage'd, and therefore of the tool 0 in the vertical direction, includes a screw thread for example square vertical 23 journaled in bearings 24 secured to the post c and along which can move a nut 2b integral with the carriage D. screw 23 is driven from a small auxiliary motor attached to the back of the standard c in a casing 26 and transmits its rotational movement, via two pulleys 27.28 poly groove and a trapezoidal belt 29, to an axis 30 which carries the pulley 28.

This axis. ' swirls in a support bearing 31 is of the

front face of the upright c and/extended by a worm

end 32 meshing with a gear 33 integral with a vertical axis 3 ^ imontë rotatable in support 24.

This axis 3^also carries at its upper end a small pinion 35 arranged to mesh with a pinion 36 integral with the screw 23. The small gear 35 is vertically displaceable by means of a forked lever 37 which is pivotally mounted about an axis 38 fixed to the post c and which is operable by a lever 39 (fig. 6 *). The positiondu pinion 35 can be selected so that it is engaged or not with the

•pinion 36 integral with the screw 32.

See that this pinion 35 constitutes the clutch element or clutch device grams controls the automatic feeding of the tool. The operation of this device results from this arrangement clearly; in that the pinion 35 is in engagement with the gear 36, the motor m being turned on and the engine E, the screw 23 secured to the pinion 6>J. the d is actuated and the carriage moves toward the table 1 for work-holder that the disk 0 or circular saw in rotation can enter the room crosscut.

In addition to the advantage of the automatic advance of the tool which reduces burdens of the worker, the yield is increased and the life of the tool 20 increased, and about as the engine e is fixed on a solid concrete elements independent of the frame of the machine, thereby avoiding " detrimental vibrations. Output that must be toto ffiurnir the motor corresponds to about 50# power usually required.

Of course, the invention is not limited to the embodiment shown and described which has been chosen as example.