FR2515156A1 - Hand machine for folding plans - uses slide with alternating clamps on opposite edges to pull plan to=and=fro between overhung blades - Google Patents

Abstract

The manually operated appliance folds paper or plans in the accordion style, using fixed blades with a slidable folding guide. An ejection system is incorporated together with a stop by which the slide is located. Alternatively, the casing upon which the blades are mounted may be movable whilst the mechanism is fixed. A handle bar may be used to slide a folding table back and forth relative to the folding blades, a grip-frame actuated by ramps on rollers serving to secure alternate sets of superimposed folded edges.

Description

Da present invention
relates to a method and an apparatus for folding "accor on" folds for sheets of paper and paper.

 The invelltioll finds its application in the organization of drawing desks.

 Currently Lement1 the folding of the plans is carried out partly in May and partly mechanically. either by the reciprocating movement obtained manually from two blades driving the strip ie paper against two opposite stops provided with clamps, these stops and these clamps being fixed and the blades movable either by more complex machine and of large production with rollers and reciprocating beltways generally coupled to a pulling machine. This known techniques are currently relatively noisy or complex.

 The present invention therefore provides a simple process reducing noise and the risk of breakdown by breakage of the parts.

 The invention will now be described in detail with reference to a particular embodiment cited by way of nonlimiting example and represented by the accompanying drawings.

Figure 1 / shows in cross section the table-carriage system on gl: sière and the wool-carrying hood.

Figure 2 / shows in cross section the manual translation system: by operating handle.

Figure 3 / shows the locking system in the paper loading position
FIG. 4 / and enlarged details of FIG. 4 show in section the device for ejecting the folded plane from the raising of the handle to operate the position permitted by the notching of the cams 11.

Figure 5 / shows the pinch radre system actuated vertically cams and rollers.

The diagrams A U C D show the folding principle known as "accordion".

General description: the cover 1 is fixed and carries two blades 2a and 2b mo floating on rubber.

The carriage composed of the table 3 and the clamping frame 4, the end trays of which cam slides on two cylindrical slides 5 by means of two bearings 6 equipped with ball bushings 7.

The rollers 15 are mounted on the rods 16 each oscillating in one direction with return spring 17.

The operating handle 8 mounted as a lever actuates the ejection blade 10 vertically by the lets 9; this in a position ensured by the crar cams 11.

The bar 12 for locking and unlocking in the loading position actuates a system of links 13 and 14 which stop the carriage at the correct position lowers or raises the blade 2a. Two ball latches and springs ensuring that this bar 12 and the rods 13 and
The operation takes place as follows: Raise the bar 12. 1 use the operating handle 8 to bring the carriage to the stop, while keeping the body pressed on the handle 8. The operator then hands free to load the sheet of paper (see diagram A).

Pushing the carriage raises one side of the clamp frame 4 on the.

rollers 15 and the lifting of the bar 12 causes the lowering of the blade 2a thus creating a sufficient gap to introduce the edge of the paper by the clamp. While holding the paper, apply pressure to the bar which, when falling, releases the carriage which advances under the effect of the pressure of the operator's body. At this time, the cam-shaped parts sloping in the pinching frame extend beyond the axis of the two rollers 15 which are suddenly erased leaving the frame 4 to rebound and cause the paper to be clamped between the blade 2a and the pile of the frame 4 (see diagram B). The paper thus tightened will be driven by the movement of the carriage back and forth and will meet the blade 2b which will force it to bend under the other clamp of the frame (see diagram C) which is lifted in turn by the rollers 15 which, collapsing at the end of the stroke, causes the first fold to be pinched (diagram D). The folding process is repeated each time the cart goes back and forth. When all the paper has been absorbed into the device, the "accordion" folding is finished.

The folded paper is then ejected by lifting and pushing the operating handle 8 until the notches of the cams allow the blade 10 to rise by means of the links 9, the frame clamp then being lifted on the rollers 15. One side of the paper is then loosened and does not release the blade 10 (see details agiandis in figure 4). It is enough with one hand to grasp it in time qae 1: the other hand, the handle 8 of the carriage is pulled towards you; at the end of the race, the other clamp of the frame rising on the rollers 15 the folded paper is then entirely released.

Claims (3)

1 / Manual control device for folding paper or folded plans  "accordion" characterized in that the blades 2a and 2b are fixed and the  mobile folding mechanism eli translation 4 6 7. 2 / Apparatus according to claim 1 / characterized by the ejection system  folded planes 8 9 10 11 and a stop system in position 12 13 i4. 3 / Apparatus followed claims 1 / and 2 / characterized in that the mechani  folding is fixed and the ladies hood i 2a and 2b is movable.