JPS5995185A - Stencil paper gripping device for rotary mimeographic press - Google Patents

Abstract

PURPOSE:To securely grip a head part of a stencil paper, then wind up the stencil paper by rotating gripping members, open the gripping members and retract them to the left and the right thereby to dismount the stencil paper, by providing the gripping members which are projected in an opened condition and are closed at a predetermined position. CONSTITUTION:A movable housing 12 is slidably engaged to a frame 10, a fixed gripping member 16 is provided at the inside end thereof, a pinion 32 engaged with a rack 30 is movably supported on a shaft 33 at a supporting wall part 15, a movable gripping member 36 is fixed by cutting away a part of the rack 30, and is constantly pressed in an opening direction by a spring 35. In a cam operating device 40 for operating the movable housing 12, a roller 47 engaged with a cam 42 is provided at one end of a cam lever 45, and the other end is engaged into a groove 14 provided in the housing 12. Accordingly, the stencil paper can be easily dismounted by appropriately winding it around a head part by the movable and fixed gripping members.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for holding the head of a used mimeograph paper in a rotary mimeograph machine for automatically discharging the used mimeograph paper.

Traditionally, the most troublesome task in mimeographing is removing the used base paper after printing and disposing of the ink-filled base paper, which inevitably stains the user's hands and clothes. Therefore, in order to dispose of such used base paper with ink adhering to it, a base paper with a head made of thick paper is used and a stopper is used to hold the head of the base paper after printing. Remove the paper, raise the head, hold it between both sides with the take-up claws, rotate the take-up claws to wind the base paper around the head, and after one roll is completed, release the take-up claws to eject the plate. A plate ejecting device using the above-mentioned method is known.

However, in such a plate ejecting device, the head of the base paper is inserted between the claws of the winding claw and the winding claw is rotated, so the winding claw does not hold the base paper reliably. There are drawbacks such as the fact that it is difficult to install and cannot be reliably installed.

Therefore, an object of the present invention is to remove such conventional drawbacks by removing the stopper that holds down the head of the mimeograph paper after printing, raising the head, and removing the side of the head. The scissors are opened from the left and right sides toward the end and protrude inward, closed at a predetermined position f4, and the head of the mimeograph is firmly grasped by the scissors, and then the scissors are rotated. To provide a mimeograph paper holding device for a rotary copying machine, which winds the mimeograph paper around a head clipper clamped by the machine and, after winding is completed, opens a scissor member and at the same time retracts it to the left and right to release the mimeograph paper and discharge it. There is a particular thing.

Other objects, features and advantages of the present invention will become apparent from the following detailed description taken in conjunction with the accompanying drawings.

As shown in FIGS. 1 to S of the drawings, the mimeograph paper holding device of the rotary copying machine of the present invention includes a cylindrical movable housing /2 supported on a frame 10, and a movable housing /2 supported on the frame 10. 2, a rack 30 that is provided with a guide 2 at one end and that can slide inside the movable housing saw; a binion 32 supported on the inner end of the rack and meshing with the rack 30;
A movable scissor member 36 fixed to the movable scissor member 36, a fixed scissor member /l provided below the inner end of the movable housing /2 in correspondence with the movable scissor member 36, and a movable and fixed head member of the mimeograph paper. It mainly consists of a force l and an actuating device tio for actuating the movable housing /2 to be held by the scissors *A' 3 A, /A.

As shown in the figure, the movable housing /2 has a cylindrical shape, is slidably fitted into the hole // of the frame 10, and one end of the cam lever ys of the cam actuating device 1l-o is engaged with the outer end thereof. A groove/da is provided.

A support wall part /S and a fixed scissor member 16 are provided parallel to the inner end. A part 1 of the operating rod /g having the EiJ movable middle housing /2 is fixed to a bracket /9 attached to the frame 10, and the movable housing 7.
It extends through the rear axle 2.2 and the guide cog in 2, and is provided with a stop collar 2 at the other end. Inside the movable housing/2 there is a hole 23 through which the actuating rod/g passes.
A rear mandrel, 22 and a guide hole through which an operating rod/g passes, a guide 2 having a 2j, and a front mandrel core are provided and can slide inside the movable housing/2. One end of the rack 3o provided in the guide 2 is fixed to the guide 2g. A pinion 32 that engages with a rack 3θ is supported by a shaft 33 on the support wall portion /3 at the inner end of the movable housing /2, and a movable scissor member 36 is fixed by cutting off a part of the pinion 3o. It is constantly pressed in the opening direction by the spring 3s.

The cam actuating device yo that operates the movable housing /2 is supported by a cam holder which is rotatably supported on the frame 10 about the shaft 1I3VC and a bracket holder which is attached to the frame θ as shown in Fig. 3. One end of the lever lIs is provided with a roller luff 7 that engages with the cam lever lid, and the other end is provided with a movable housing/
It is engaged with +Y/J/re of 2.

An example of a copying paper suitable for use with the IJ copy paper holding device of the rotary copying machine of the present invention constructed in this manner is shown in FIG. A mimeograph paper has a head made of thick paper at one end, and this V [
Four side movable and fixed scissor members 31. ,/A
A cut portion 6 is provided for this purpose. The shape of this cut portion B can be any suitable shape, such as a trapezoid or a semicircle.

In the mimeograph paper holding device of the rotary copying machine of this invention, the head l of the mimeograph paper λ is
Remove the stopper that holds the head in place and raise the head. When the raised head of the mimeograph paper reaches the fixed winding position, the shaft 3 of the cam actuator θ is actuated, and the cam holder is moved to the cam lever IIS 1':!i! engages with the roller 17 of the frame 10 to move the roller rough 7 to the outside π11.
The left side of the cam lever 47 pivots around the pin of the bracket 1I-6, and the other end of the cam lever 47, which engages with the i#/ of the movable housing /2, moves the movable housing /) inward ( Figure 1). Accordingly, the movable housing 12 moves inwardly along the actuating rod /g toward the cut portion 6 of the head portion of the mimeograph sheet with the movable scissors portion 36 open. During this inward movement of the movable housing/2 along the actuating rod/g, the guide 2g fixed to one end of the rack 30 hits the stopper 2A at the tip of the working SihFJig, causing the guide 2+! , the rack 3θ is stopped, and the pinion 3 engages with the stopped rack 30 by the subsequent movement of the movable housing/U relative to the rack 3θ.
2 is a movable scissor member 36 for rolling the rack 3θ soil
rotates counterclockwise about the shaft 33-1, whereby the head of the mimeograph paper is firmly clamped between the tip of the movable scissor member 3A and the fixed scissor member 6.

Once the head of the mimeograph paper has been clamped by the movable and fixed scissor members JA, /A, the gear st
, ss, s3 (No. 3, left diagram)
, 2, the mimeograph paper is wound up in place of the head clamped by the movable and fixed scissors JA, /A.

Next, when the winding of the mimeograph paper is completely completed, the cam that keeps the movable housing saw pressed inward via the cam lever s. 2 begins to rotate again due to the action of an appropriate timing device and completely disengages from the roller luff 7 at the left end of the cam lever dam.

As a result, the left cam lever II is forced to return to its original position by a suitable elastic device such as a spring, so that the movable housing /2 also slides outwards along the operating axis /g. At the time of this 1yit movement, what is the binion for the rack 30? As λ rotates, the movable scissor member 3A opens with the action of the spring 33, releasing the head of the mimeograph paper, and then the front mandrel;! As the guide 2'l is slid along the actuating rod/gK by 7, the rack 3 which is integrated with the guide 2'l moves together and is completely retracted to the original position 5, and the rolled up mimeograph paper is moved. The paper falls to the bottom and is ejected.

As described above, according to the mimeograph paper holding device of the rotary mimeograph machine of the present invention, when printing is finished, the stopper that holds the head of the mimeograph paper is removed and the head is raised up. When the winding position is reached, the movable housing protrudes inward by actuation of the cam lever by the cam actuating device, and the movable and fixed scissors members at the tips firmly clamp the head of the mimeograph paper, and the next movable housing, movable and [^1
By rotating the fixed scissor member, the mimeograph paper can be completely wound around the head 1, and after one winding is completed, the movable and fixed scissor members release the original paper and return to their original positions. None, the rolled up mimeograph paper is discharged, and the movable and fixed scissors members firmly hold the mimeograph paper, and it is possible to suitably wind it around 1cm of the head and easily discharge the master paper. Also, such clamping and winding operations as well as one continuous operation gf! 1l
lJ: This can be made even better by combining it with an appropriate microcomputer and a flilJ control device.

[Brief explanation of the drawing]

The drawings show an embodiment of a copy paper holding device for a rotary copying machine according to the present invention, in which FIG. 1 is a side sectional view, FIG. 2 is a plan view, FIG. 3 is a schematic plan view, and FIG. 9 is a cam. FIG. 3 is a side view of the actuator portion, and FIG. 6 is a plan view of the mimeograph of the head member used in the present invention. In the figure, 2: mimeograph paper, g: head, lO: frame, l movable housing, lA = fixed scissor member, 7g: operating rod 1. zII guide, 26 = stoppa, 30 Nirakku, 3;! : Pinion. 36: Movable scissor member, ri θ: cam actuator, lI;z
: cam, geta: cam lever. Patent applicant: Horii Mimeshado Co., Ltd.

Claims (1)

[Claims] After printing is completed, remove the stopper that holds the head of the mimeograph paper, raise the head, open the scissors from both the left and right sides of the head, and protrude inward, and hold it in place. Close the scissors and firmly grasp the head of the mimeograph paper with the scissors, then rotate the scissors to wind up the mimeograph paper around the head grip held by the scissors, and open the scissors after winding is complete. A mimeograph paper holding device for a rotary mimeograph machine that can be retracted from side to side to release the mimeograph paper and eject the plate.