JPH058071Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to an improvement of a punch that punches a through hole in one side of a document in order to insert the document into a loose-leaf notebook or the like. This invention relates to a punch shaft cleaning mechanism for a document punch in which a reinforcing piece for reinforcing the periphery of the through hole is attached immediately before the through hole is punched.

[Prior Art] In a document in which one or several through holes are made in one side of a document and the document is used to be inserted into a notebook such as a loose-leaf paper, the area around the hole is Document punches have the disadvantage of being easy to tear, so in order to reinforce the area around the hole, a reinforcing piece such as a thin plastic piece is pasted on the part of the document where the hole is to be punched, and then the document is punched together with the reinforcing piece. is already known.

In addition, the reinforcing piece is pasted on a release tape, the release tape is wound up inside a cassette container, the cassette container is assembled into a hole punch, and each time a hole is punched in a document, the release tape is automatically removed from the cassette. A device in which a reinforcing piece can be attached to a document by rolling it out has already been proposed (patent application filed in 1983).
-Refer to No. 115151).

By the way, the reinforcing piece has an adhesive applied to one side thereof, and is attached to the document using the adhesive. Since the hole punch shaft punches holes in the document and the reinforcing piece after the reinforcing piece is attached to the document, a small amount of the adhesive held by the reinforcing piece is released into the punch shaft each time a hole is made. It becomes attached. For this reason, as the number of holes drilled on the punch shaft increases, the adhesive adhering to it gradually deteriorates its ability to pass through the through hole drilled in the metal base plate, impeding smooth drilling work. will be done.

[Problem to be solved by the invention] The problem of the invention is to prevent the adhesive of the reinforcing piece from adhering to the punch shaft during drilling, and to prevent the punch shaft from fitting into the through hole on the metal base plate after drilling. The goal is to maintain the smoothness of the movements that occur.

[Means for Solving the Problems] In order to solve the above problems, the present invention includes a punch shaft that moves downward when a handle is pressed down to punch a through hole for binding in a document placed on a metal base plate; The release tape is drawn out in conjunction with the above handle operation,
a reinforcing piece sticking mechanism that sends out a reinforcing piece peeled off from a release tape to a predetermined position of the document immediately before the punch shaft makes a through hole in the document, and sticks the reinforcing piece to the document with an adhesive applied thereto; In this document punch, an oil absorbing layer having a through hole approximately the same size as the thickness of the punch shaft is provided around the through hole into which the punch shaft on the back side of the metal base plate is inserted after punching, and the punch shaft is provided in the oil absorbing layer. It is characterized by being moistened with an oil agent that prevents adhesive from adhering to the shaft.

[Function] According to the above-described means, the punch shaft passes through the through-hole of the oil-absorbing layer every time it punches a hole in a document, and receives oil from the oil-absorbing layer to prevent adhesive from adhering to the metal base. The passage of the punch shaft through the through hole in the plate remains smooth, and the lightness of the punching operation can be maintained permanently.

[Example] Figures 1 to 3 show the structure of a document punch equipped with a punch shaft cleaning mechanism according to the present invention, in which a hole is attached to one side of a document A for storing the document A in a loose-leaf notebook or the like. In the punch for making a through hole, a reinforcing piece B for reinforcing the document around the through hole is sent out to a predetermined position on the document just before punching the through hole in the document A, and the adhesive applied to it is used to strengthen the document. It has a mechanism for attaching the reinforcing piece B to the document A, and then punching a through hole in the document A together with the reinforcing piece B.

More specifically, the document punch includes a base 10, a punch mechanism 11 that presses down the punch shaft 13 by operating a handle 12 on the base 10 to punch a through hole in the document A, and Handle 1
Tape C with reinforcing piece B attached in conjunction with operation 2
A reinforcing piece sticking mechanism 15 sends out the reinforcing piece B from a cassette 16 and sends out and sticks the reinforcing piece B to a predetermined position on the document A, and a reinforcing piece B at a predetermined position on the document A is attached to the document A when a hole is punched by the punch shaft 13. In addition, the punch shaft cleaning mechanism 18 is provided for suppressing the adhesive of the reinforcing piece B from adhering to the punch shaft 13.

The base 10 is formed so that the cassette 16 can be accommodated in a recess 21 provided in the rear half thereof, and a metal base plate 23 is stretched over the elevated part 22 of the first half, and the handle 12 is supported on this metal base plate 23. A pair of support plates 24 are attached. As can be seen from FIG. 3, the support plate 24 is bent inward in a U-shape and
A gap is provided between the front part of the document A and the metal base plate 23 in which the document A is inserted, and the document A is attached to the center of the base.

The left and right portions of the lower end of the handle 12 have a support shaft 26 passing therethrough in the horizontal direction, and are provided with notched bearings at the front end of the support plate 24 and the front end of a sub-support plate (not shown) disposed opposite to the support plate 24. 27 so as to be rotatably supported, and the resilient end of the spring 28 wound around the support shaft 26 is connected to the support plate 24 and the handle 1.
2 to always urge the handle 12 to the raised position.

On the other hand, at a position slightly apart from the lower end of the handle 12, a pin 29 inserted into the punch shaft 13 for raising and lowering the punch shaft 13 is horizontally passed through and suspended. When the pin 29 is tightly fitted into the handle 12, when the handle 12 in the raised position is pushed down, the pin 29 descends while drawing an arcuate locus centered on the support shaft 26, so that At the same time, an elongated hole 30 in the vertical direction is provided in the support plate 24 and the sub-support plate opposite thereto, and the pin 29 is inserted through this elongate hole 30 as well. Therefore, when the handle 12 is operated, the pin 29 moves up and down vertically. Further, when the pressing force on the handle 12 is released, the free end of the handle rises due to the elasticity of the spring 28, but the rise is stopped when the pin abuts the upper end of the elongated hole 30. FIG. 3 shows the stopped state at this top end.

The document holding mechanism that holds down the document A when punching a hole in the document A with the punch shaft 13 is not clearly shown, but as shown in FIG. Document holding plate 31
This holding plate 31 has a vertical hole 32 in the center.
is provided, through which the pin 29 is inserted, and is constantly biased downward by a spring 33 engaged with one end thereof. Therefore, when the handle 12 is pushed down, the holding plate 31 is lowered by the biasing force of the spring 33, and after its lower end presses down the document A on the metal base plate 23, the pin 29 moves down on the holding plate 31. Vertical hole 3
There is no possibility that the handle 12 may be lowered within the handle 12 and become an obstacle to pushing down the handle 12.

When the document A is pressed onto the metal base plate 23 by such a presser plate 31 when drilling holes in the document A, the document A tends to be bent due to pasting the reinforcing piece B.
This makes it possible to prevent the reinforcing piece B from moving or wrinkled, and to reliably attach the reinforcing piece B to a predetermined position on the document A.

Next, the reinforcing piece adhering mechanism 15 for sending out and adhering the reinforcing piece B to a predetermined position on the document A will be explained.

The reinforcing pieces B are affixed to a release tape C at regular intervals and wound and housed in a cassette 16 as shown in FIG. At this time, the reinforcing piece B is automatically peeled off from the tape C and pasted onto the document A at a predetermined position.

The tape feed roller 35 that feeds out the tape C from the cassette 16 is rotatably supported by the base 10, and the roller 35 has small protrusions 36, 36, . Protruded,
The spacing between the small protrusions 36 is set so that the small holes c' formed in the tape C and the reinforcing pieces B attached thereto at regular intervals engage with the small protrusions 36.

The tape feed roller 35 is integrally provided with two large and small ratchet wheels 37 and 38 on its inner surface.
A leaf spring 39 is engaged with the pawl 7 to prevent reverse rotation, and a pawl 41 at the tip of a ratchet lever 40 for rotating the small ratchet wheel 38 is exposed. The spacing between each pawl of the large and small pawl wheels 37 and 38 is determined by the small protrusion 36 on the circumferential surface of the roller 35.
It forms the same angle as the interval.

The ratchet lever 40, which engages with the pawl of the pinion wheel 38 to rotate the pinion wheel 38, has its upper end rotatably attached to the handle 12, and its middle portion fitted into the split groove 42 of the metal base plate 23. , wire spring 4
3, the groove 42 is always urged inward.

The pawl 41 at the tip of the ratchet lever 40 engages with the pawl of the small ratchet wheel 38 to rotate the pinion wheel 38 by one pawl when the handle 12 is pushed down. The rotation of the ratchet wheel 38 must complete the operation of peeling off one of the reinforcing pieces B on which the tape C is pasted from the tape C and pasting it onto the document A. Ratchet lever 4
For this kind of operation, the pawl 41 of 0 is attached to the small pawl wheel 3.
8 is formed so that it separates from the pinion wheel 38 after being rotated by a predetermined angle.

On the other hand, the cassette 16 has a beak 50 for leading out the tape C from inside the cassette 16. This beak 50 includes an upper beak 51 and a middle beak 52 provided below the beak 51 with a gap sufficient to pass the tape C.
and a lower beak 53 provided with an interval between the middle beak 52 and the tape C, and a resilient piece 54 that contacts the roller 35 elastically is formed in a part of the middle beak 52 in the middle thereof. are doing. Further, the upper beak 51 and the middle beak 52 protrude above the end of the document A inserted onto the base 10, so that the reinforcing piece B sent out is surely placed on the document A.

The tape C stored in the cassette 16 is
The end portion is guided out between the upper beak 51 and the middle beak 52, bent sharply downward, passed between the middle beak 52 and the lower beak 53, and wound around the surface of the roller 35. When the tape C is sharply bent in this way, the reinforcing piece B sent out together with the tape C is naturally peeled off at that part and released onto the document A.

Even if the reinforcing piece B is sent out onto the document A as described above, the reinforcing piece B is not necessarily stuck firmly onto the document A. Therefore, the punch shaft 13
A pressing mechanism 1 that presses a reinforcing piece B at a predetermined position on a document A against the document A when drilling a hole by
7 is provided. This pressing mechanism 17 has a lower part of a pressing plate 60 formed by bending a metal plate facing above the attachment position of the reinforcing piece B, and has a hole through which the punch shaft 13 is slidably inserted.

In order to maintain the press plate 60 in the raised position at all times, the leaf spring 61 that engages the press plate 60 is attached to the support plate 24.
It is installed on. However, when the handle 12 is in the raised position, the punch shaft 1 is
3 is pushed up to the highest position, and at the same time, the press plate 60 is lifted by the pin 29. On the other hand, the punch shaft 13 has a pressing plate 60 and a pin 2.
A spring 63 is provided between the press plate 9 and the spring 63, and the elasticity of the spring 63 acts on the press plate as a pressing force. However, the elasticity is not strong enough to release the locking action of the leaf spring 61 while the punch shaft 13 is in the raised position.

Therefore, when the upper end of the handle 12 is pushed down,
When the pin 29 compresses the spring 63 and the compressive force increases, the pressing plate 60 pushes it away against the elasticity of the leaf spring 61 and descends all at once, reinforcing piece B.
Press on document A.

The small pawl wheel 38 of the reinforcing piece sticking mechanism 15 is the first
During the rotation of the claw, the reinforcing piece B is stuck to the document A, so the document pressing plate 60 mentioned above must not be moved downward. Thus, the insertion hole 65 of the pin 29 in the handle 12 is designed to provide blank motion to the pin 29 that provides a downward movement to the pressing plate 60.
is formed in an arc shape. When the handle 12 is pressed down, after the pin 29 hits the upper end of the insertion hole 65, the pressing plate 60 is lowered by the lowering of the pin 29, thereby firmly pasting the reinforcing piece B on the document A. Then, drilling is performed using the punch shaft 13.

The reinforcing piece B described above is temporarily adhered onto the tape C by applying an adhesive to one side thereof. Since the hole punch shaft 13 punches holes in the document and the reinforcing piece after the reinforcing piece B is pasted on the document A, the adhesive held by the reinforcing piece B on the punch shaft 13 punches holes. It adheres in small amounts each time,
The adhesive adhered to the punch shaft 13 gradually deteriorates the ability of the punch to pass through the through hole 70 drilled in the metal base plate 23, impeding smooth drilling work.

In order to solve this problem, the punch shaft cleaning mechanism 18 is provided with a through-hole 7 for drilling on the back side of the metal base plate 23.
An oil absorbing layer 71 made of sponge or the like having a through hole approximately the same size as the thickness of the punch shaft 13 is provided around the punch shaft 13, and the oil absorbing layer 71 is provided with lubrication to prevent adhesive from adhering to the punch shaft 13. By applying a lubricant such as oil, the punch shaft 13 fits into the through hole of the metal base plate 23 and the oil-absorbing layer 71 after punching the hole in the document, comes into contact with the oil-absorbing layer 71, and is coated with the oil. It is composed of In order to attach the oil absorbing layer 71 to the lower surface of the metal base plate 23, a window hole 74 is provided in the base 10 at that portion. Therefore, when replenishing the oil-absorbing layer 71 with oil, it is sufficient to remove the back cover 75 for storing punch waste and apply replenishing oil to the oil-absorbing layer 71 through the window hole 74 in the inner wall.

When such a punch shaft cleaning mechanism is provided, the punch shaft 13 fits into the through hole of the metal base plate 23 and the oil absorbing layer 71 every time a hole is punched, and the oil is applied to the punch shaft 13, thereby preventing adhesion to the punch shaft 13. Adhesion of agents is effectively prevented.

[Effects of the invention] As described in detail above, according to the invention, after a reinforcing piece is pasted at a predetermined position of a document placed on a metal base plate, a punch shaft is used to bind the reinforcing piece from above the reinforcing piece. In a document punch for punching through holes for punching purposes, an oil absorbing layer having a through hole approximately the same size as the thickness of the punch shaft is provided around the through hole for punching on the back side of the metal base plate, and the punch shaft is attached to the oil absorbing layer. The punch shaft is fitted into the through-hole of the oil absorbing layer and the oil is applied to the punch shaft each time a hole is drilled, which prevents the adhesive from adhering to the reinforcement piece. This effectively prevents the punch from sticking to the punch shaft, which allows the punch shaft to continue to move smoothly through the through-hole of the metal base plate, resulting in beautiful drilling at all times. be able to.

In addition, the punch shaft purifying device of the present invention can be constructed by simply attaching the oil absorption layer to the back side of the metal base plate, so it requires special space, members, and complicated mechanisms for its construction. Therefore, the structure is very simple and can be constructed at low cost.

[Brief explanation of the drawing]

1 and 2 are sectional views showing different operating states of the embodiment of the present invention, and FIG. 3 is a perspective view of the same. 13...Punch shaft, 23...Metal base plate, 70...
...Through hole, 71...Oil absorption layer, A...Document, B...
Reinforcement piece.

Claims (1)

[Claim for Utility Model Registration] A punch shaft that moves downward when the handle is pushed down to punch a through hole for binding in documents placed on a metal base plate, and a release tape that is linked to the handle operation. and a reinforcing piece sticking mechanism that sends out the reinforcing piece peeled off from the release tape to a predetermined position of the document immediately before the punch shaft makes a through hole in the document, and sticks the reinforcing piece to the document with an adhesive applied thereto. , an oil absorbing layer having a through hole approximately the same size as the thickness of the punch shaft is provided around the through hole into which the punch shaft on the back side of the metal base plate is inserted after punching, and the oil absorbing layer A punch shaft cleaning mechanism for a document punch, characterized in that the punch shaft is moistened with an oil agent that prevents adhesive from adhering to the punch shaft.