JPH0756263Y2 - Paper feeding chain device - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a paper feeding chain device for carrying booklets in a backing machine.

[Problems to be solved by conventional techniques and devices]

In the past, in order to change the spacing between the paper feed claws relative to the chain according to the various dimensions of the booklet, the entire paper feed claw was attached / detached with screws etc. to change the pitch. In some cases, there is a problem in that the switching of the pitch is troublesome, a lot of time is lost, and work efficiency is poor. Further, as shown in FIG. 6, the paper feed claw a should hit the booklet b at a right angle as shown by a solid line, but if the reaction force received from the booklet b of the chain c bends up and down as shown in FIG. There is a problem in that the sheet feeding claw a is inclined (escapes) as shown in FIG. 3, and the corner portion e of the booklet b is damaged or the sheet is not fed.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to solve the above-mentioned problems and to provide a paper feeding chain device with few paper feeding errors and high work efficiency.

[Means for Solving the Problems]

In order to achieve the above object, the present invention provides an endless chain including a link plate, a chain pin connecting adjacent link plates, and a roller fitted on the chain pin at a predetermined pitch. In a paper feeding chain device provided with a projecting piece and having a sheet feeding claw attached to the projecting piece; the sheet feeding claw includes a claw support body fixed to the projecting piece, and an upright position projecting from the chain. The notched claw body pivotally attached to the claw support body so as to be swingable in the angular range of the state and the tilted state in which the chain falls along the longitudinal direction of the chain, and the other of the claw support body. An upright holding member having a beak-shaped hooking protrusion that is pivotally attached around a support shaft and hooks in the notch in the upright state, and urges the claw body in a direction in which the inclining state is achieved. Part 1 And a second elastic member that urges the upright holding member in the direction in which the hook protrusion is hooked on the notch of the hook body in the upright state; and further, the paper feed hook is formed into a booklet. A pair of upper and lower fixed guide members are provided that slidably contact the rollers of the chain from above and below in the chain traveling range in which the chain is locked and feed is provided.

[Action]

All that is necessary is to attach the chain by adjusting the paper feed claw of the present invention to the pitch of the smallest size booklet. The claw main body is pivotally attached to the claw support main body so as to be swingable, is biased by the first elastic member in a direction in which the claw main body falls, and is further provided with a notch. An upright holding member having a hooking protrusion for retaining the upright state of the pawl body by being hooked on the notch by a second elastic member is provided on the pawl support body at a position where the paper feed pawl is unnecessary. If it is rocked or reciprocally moved, the hook protrusions will come off the notches, the pawl body will fall, and the pawl body protruding from the chain height will be hidden.
There is no contact with the booklet. Therefore, according to various dimensions of the booklet, the nail main body may be erected at a portion where the paper feed nail is needed and tilted at an unnecessary portion.

In the chain traveling range where the above-mentioned paper feed claw is locked to the booklet to provide feeding, the fixed guide member slides the roller of the chain from above and below and makes sliding contact, so the chain does not bend and the entire paper feed claw falls. And does not tilt.

[Embodiment] The present invention will be described below based on the illustrated embodiment.

FIG. 1 shows an embodiment of a paper feeding chain device according to the present invention. 12 is a booklet such as a form. Reference numeral 19 is a spine attachment device used to wind the tape around the booklet 12. 11 is an endless paper feeding chain, and the chain 11
A plurality of paper feed sheets 14 ... Are attached along a predetermined pitch. Reference numeral 31 is a side edge guide standing wall plate. 20 is a drive sprocket and 21 is a driven sprocket. The rotation of the drive sprocket 20 causes the chain 11 to move in the direction of arrow A, and the paper feed claws 14 ... To move in the direction of arrow A accordingly. The paper feed claw 14 abuts against and engages with the edge of the bottommost booklet 12 of the plurality of booklets 12 ... Transport to 19.

As shown in FIG. 2 and FIG. 3, the paper feed chain 11 is
A link plate 16 having a protrusion 15 ... Part of which is provided in parallel to the left and right and to which the paper feed claws 14 are attached,
Rollers 18, which are fitted onto the chain pins 17, are provided. The projecting piece 15 is formed by bending a substantially rectangular plate material into a substantially L shape in a side view, and has a fitting piece portion 23 at the tip.
The rollers 18 are moved up and down in a manner roughly corresponding to the range B in which the paper feed claw 14 is locked to the booklet 12 to provide the feed, that is, the range in which the side edge guide standing wall plate 31 of FIG. A pair of upper and lower fixed guide members 9 and 10 that slide in contact with
It is fixed to the side edge guide standing wall plates 31, 31 via 2. The fixed guide members 9 and 10 have a strip plate shape or a rectangular bar shape. The booklet 12 locked by the paper feed claws 14 and 14 slides on the upper surfaces of the support members 32 and 32.

In the enlarged view of the main parts shown in FIGS. 4 and 5, the paper feed claw 14
Is a claw main body 2, a standing member 7, a claw support main body 8,
The support shafts 1, 25, the shafts 26, 27, 28, the first elastic member 3, and the second elastic member 35. As the second elastic member 35, either one of the scissor spring 5 shown by a solid line and the coil spring 22 shown by a virtual line is used (or both can be used together). The claw body 2 is a pressure contact surface that contacts the edge of the booklet 12.
A rectangular parallelepiped thick portion having a hole through which 13 and the shaft 28 are inserted,
It is composed of a hole through which the support shaft 1 is inserted and a substantially semicircular thin portion having a notch 4. The upright holding member 7 has a substantially rectangular plate-like shape, and has a bird's beak-shaped hooking protrusion 6 and an operation protrusion 30 on the upper part thereof. The hole through which the support shaft 25 is inserted and the shaft 27 are inserted and attached. And a hole is formed. The claw support body 8 has a shape in which three substantially rectangular plates are stuck together and the central plate is cut out leaving a size of about 1/4, and the two plates on both sides and the central quarter are The plate of the degree is fixed at the base end. A fitting notch 24 is provided at the base end, a hole into which the support shaft 25 and the shaft 26 are inserted, and a hole into which the support shaft 1 is inserted are provided at the tip end. Further, a screw hole 29 for screwing a screw for fixing the fitting piece portion 23 of the projecting piece 15 is formed on the upper surface of the fitting cutout portion 24. Nail body 2
Is pivotally attached to the tip end portion of the claw support body 8 by the support shaft 1 so as to be swingable around the support shaft 1, and is biased in the tilting direction by the first elastic member 3. The upright holding member 7 is pivotally attached to the base end portion of the claw support body 8 by a support shaft 25 so as to be swingable around the support shaft 25, and is urged in the upright direction by a second resilient member 35. (That is, in the illustrated example, a tension spring is used as the coil spring 22.)
The fitting piece portion 23 of 15 is fitted into the fitting notch portion 24, and is screwed with a screw or the like to be fixed to the chain 11.

As shown in FIG. 5, the notch 4 of the claw main body 2 is engaged with the hooking protrusion 6 of the upright holding member 7 to prevent the claw main body 2 from falling. When an external force is applied to the operating projection 30 with a finger and the standing holding member 7 is swung around the support shaft 25, the hooking protrusion 6
Comes out of the notch 4, and the nail body 2 falls down. On the contrary, in order to bring the claw body 2 to the upright state, the claw body 2 is simply raised by an external force, and the notch 4 is fitted and locked with the hooking protrusion 6 to keep the upright state.

It should be noted that the present invention is not limited to the above-described embodiments, and design changes can be freely made without departing from the scope of the present invention.

[Effect of device]

Since the present invention is configured as described above, it has the great practical effects described below.

The paper feed claw 14 of the present invention has various sizes for the booklet 12 ...
When the booklet 12 is large, the nail body 2 can be easily tilted and retracted when the predetermined pitch is adjusted, and it is easy to remove the nail body 2 when the booklet 12 is large. Can be easily stood up, the size of the booklet 12 can be quickly adjusted, and work can be performed efficiently.

Further, since the fixed guide members 9 and 10 are provided, the chain 11 moves up and down without bending, the paper feed claws 14 fall, damage the corners of the booklet 12, or slide on the lower surface of the booklet 12. It is possible to prevent mistakes such as scratching the paper and damaging the paper, and failing to feed the paper due to the paper feed claw 14 falling down.

[Brief description of drawings]

FIG. 1 is a simplified explanatory view showing an embodiment of the present invention, FIG. 2 is a front view of essential parts, FIG. 3 is an enlarged sectional view, FIG. 4 is a front view of essential parts, and FIG. It is a cross-sectional front view. FIG. 6 is an explanatory diagram of a conventional example. 1 ... Support shaft, 2 ... Claw body, 3 ... First firing member, 4 ...
... notch, 6 ... hanging protrusion, 7 ... standing member, 9
…… Fixed guide member, 10 …… Fixed guide member, 12 …… Booklet, 14 …… Paper feed claw, 15 …… Projection piece, 16 …… Link plate, 17 …… Chain pin, 18 …… Roller, 35… … Second
Elastic member.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Ken Oroyama 809 Kamimachiya, Kamakura-shi, Kanagawa Hiroshi Uchida Kamakura Research Institute Co., Ltd.

Claims (1)

[Scope of utility model registration request] 1. An endless chain 11 comprising a link plate 16, a chain pin 17 for connecting adjacent link plates 16 and a roller 18 fitted on the chain pin 17. In a paper feeding chain device in which the projecting pieces 15 are provided at a predetermined pitch and the sheet feeding claws 14 are attached to the projecting pieces 15, the sheet feeding claws 14 are fixed to the projecting pieces 15. Nail support body 8
And a notch pivotally attached to the pawl support body 8 so as to be rotatable around the support shaft 1 so as to be swingable in an angular range between a standing state protruding from the chain 11 and a falling state in which the chain 11 falls along the longitudinal direction. Claw body 2 with 4 and the claw support body 8
Beak-shaped latching protrusion 6 which is pivotally mounted around the other support shaft 25 and latches on the notch 4 in the upright state.
And a first resilient member 3 for urging the claw body 2 in the direction in which the claw body 2 is in the tilted state, and the stand up holding member 7 in the notch 4 of the claw body 2 in the standing state. Second elastic member for urging the latching protrusion 6 in the latching direction
35, further, in the chain traveling range in which the paper feed claws 14 ...
A sheet feeding chain device comprising a pair of upper and lower fixed guide members 9 and 10 which are in sliding contact by sandwiching 18 ...