JPH0442156B2 - - Google Patents

Description

[Detailed Description of the Invention] Purpose of the Invention The present invention provides a punch for punching a through hole with a diameter of approximately 6 m/m on one side of a document in order to insert the document. A mechanism is provided for pasting a reinforcing piece to reinforce the document, and the pasting mechanism automatically sends out the reinforcing piece onto the document each time the handle for drilling is pressed down, or when the reinforcing piece is not needed, This relates to a hole punch that has been improved so that feeding can be stopped.

Industrial Application Fields and Prior Art When a document is made by punching several through holes on one side and inserting the document into a notebook such as a loose-leaf paper through the holes, the area around the punched holes tends to tear. However, in order to strengthen the area around the hole, a reinforcing piece such as a thin piece of plastic is pasted on the area of the document where the hole is to be punched, and then the punch is punched together with the reinforcing piece. is already known. (Jitsugyo 51-46718, Jitsugyo 56-38799, Jitsuki Sho 57-
(Refer to 43999) Also, the reinforcing piece is attached to a release tape, the release tape is wound around 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 fed out from the cassette. A method in which a reinforcing piece is attached to a document has already been proposed. (Showa 57-153500, 57-
(Refer to 43998) Problems to be Solved by the Invention However, in the conventional method, the mechanism for feeding out the reinforcing piece onto the document is simply connected to a handle for punching, and has an adhesive surface that is easy to scratch. Because the size and properties of the reinforcing pieces were not paid out with sufficient consideration, the reinforcing pieces were not properly affixed to the predetermined positions on the document, and the reinforcing pieces could not be used reliably.

In addition, in Japanese Utility Model Publication No. 43-23990, in order to feed out the adhesive tape for reinforcing patches in conjunction with the push-down operation of the handle when drilling a hole, a pawl rod that goes up and down with the handle is provided, and the pawl rod is The tip of the rod faces the gear attached to the shaft rod of the tape feeding roller, and when the handle is pushed down, the claw rod engages with the gear and rotates the tape feeding roller, thereby ensuring that the tape is kept at a constant level. Disclosed is one in which the length is extended.

However, since the pawl rod is only supported at one point at the base end, the tip part tends to swing easily, and operation becomes unstable when the handle is pushed down forcefully. The drawback is that it is not possible to reliably feed out one sheet at a time. In addition, a mechanism for retracting the pawl rod to a position where it does not engage with the gear when only drilling is performed without feeding out the tape is comprised of a switching rod that is pivoted at an intermediate position. Due to the rotating operation, the inclined tip surface pushes the side surface of the proximal end of the pawl rod to move it to the retracted position, so the structure is complicated and the operation is unstable.

Therefore, when the tape is fed out using such a pawl rod, it is necessary to restrict unnecessary movement of the pawl rod and stabilize its operation.

Means for Solving the Problem This invention provides a handle equipped with a hole punch shaft that is constantly energized on a base and raised to a specific height, and a ratchet lever for feeding out the reinforcing piece tape. has its tip facing the ratchet wheel for dispensing the reinforcing strip tape of the cassette containing the reinforcing strip tape built into the base, and the ratchet wheel rotates by one claw when the handle is lowered. The document punch is equipped with a mechanism for attaching the reinforcing piece to the document immediately before punching a document hole in the document inserted directly below the punch shaft, the upper part of which is attached to the handle, and the handle can be raised and lowered. The lower part of the ratchet lever, which moves up and down along with the movement, is slidably fitted into a cut groove provided in the base, and is biased by a spring in the direction of pressing the sliding side into the deep part of the cut groove. and when the handle is pushed down, the tip of the lever engages with one pawl of the ratchet wheel under the guidance of the cam, rotates the ratchet wheel, and then the tip of the lever is removed from the ratchet wheel, In addition, when it is not necessary to attach the reinforcing piece to the document, the depth of the cut groove can be made shallow so that the tip of the lever can be moved back to a position where it is always removed from the ratchet wheel. In this way, since the sliding range of the ratchet lever is always regulated by the cut groove, its operation is stable even if there are differences in the strength or slowness of the handle operation, and the action of feeding out the reinforcing piece is almost the same every time. In addition, the guide of the cam formed on the sliding side allows for reliable engagement with the ratchet wheel.Moreover, when only drilling is performed without feeding out the tape, the depth of the cut groove can be adjusted. By simply making the depth shallower, it is now possible to reliably retract the pawl rod to a position where it does not engage with the gear.

Embodiment Figure 1 shows _an example in which a pair of through holes A ₁ and A ₂ are made on one side _of a document A for inserting the document A into a loose-leaf notebook.
2 shows an example in which reinforcing pieces B and B are attached to reinforce the periphery of the hole, and through holes A ₁ and A ₂ are also formed in the reinforcing piece B. However, the purpose of the present invention described below is not limited to drilling a pair of holes A ₁ and A ₂ as described above, but also when drilling a single hole, or three or four holes. It goes without saying that this is within the technical scope of the present invention.

Figure 2 shows a pair of holes on one side of document A in Figure 1.
This is an example of a punch 1 that can open A ₁ and A ₂ at the same time with one handle operation.
A cassette 4 containing a support plate 3 attached to the top and a tape C (see Fig. 7) with a reinforcing piece B pasted on it.
It is made of more.

As can be seen in FIG. 3, the base 10 has a right half, that is, the front half 11, which is 3 times higher than the rear half 12.
The first half 11 has a hole in the document A.
This is the part that has the mechanism to open A ₁ and A ₂ .
The rear half 12 has a low platform shape to facilitate the operation of inserting or removing the cassette 4 into the base 10.

A friction plate 90 such as a rubber plate is provided on the bottom of the base 10.
is attached to prevent the punch 1 placed on the desk from slipping unnecessarily.

The rear half part 110 of the base front half part 11 (hereinafter referred to as the center part 110 of the base) has a length of about 1/4 of the length of the base 10 in the front-rear direction, and the part 1
The height of section 10 is several m/m (approximately 5
m/m), and this difference in height makes it convenient for inserting the document A to be punched onto the front half 11.

A base 10 is placed on the flat top surface of the central portion 110.
A seat plate 30 having a width as wide as 1 is attached, and the seat plate 30 has sleeve portions 31, 31 through which a pair of hole punch shafts 5, 5 are passed, and protrudes over the front half portion 11 for a long time.

The seat plate 30 has a length that reaches the front end of the sleeve portion 31 at almost both left and right ends thereof, and a height that is equal to or greater than the central portion 1.
Support plates 3, 3 with a height of about 10 are stood upright, and the upper sides 32 of the support plates 3, 3 are each bent horizontally inward to the base 10, and the punch shaft 5 is attached to the front part thereof to raise and lower. A guide hole 33 is provided.

The punch shaft 5 has through holes 34 and 1 formed in the guide hole 33, the sleeve portion 31 of the seat plate, and the front half of the base 11.
4 is attached to the pin 20 horizontally suspended on the handle 2 by penetrating its midsection.
4, in order to beautifully make holes A ₁ and A ₂ in document A, a metal plate 13 with through holes 14 is used, and the metal plate 13 is stretched over the front half 11 of the base. Note that the inside of the front half of the base 11 is hollow, and pieces of paper with holes A ₁ and A ₂ punched out are collected in the hollow.
It is made so that it can be taken out as needed.

The handle 2 has approximately the same width as the base 10 and a somewhat shorter length, but the base 21 is largely hollowed out in the center, leaving the part necessary for supporting the punch shaft 5. The position of the document A inserted on the front half 11 of the machine can be easily confirmed.

The handle base 21 has a cross-section large enough to allow the upper side 32 of the support plate 3 to be loosely inserted therein, and overlaps with the front end of the support plate 3 near its lower end (or front end). , it is supported by a support shaft 22 that horizontally passes through the handle root 21 and the front end of the support plate 3, and the handle free end 23 can be rotated up and down using the support shaft 22 as a fulcrum.

In order to constantly raise the free end 23 of the handle 2 to a specific height above the base 10, a spring is wound around the support shaft 22, and the resilient ends 24, 24 of the spring are wound around the support shaft 22.
is applied on the seat plate 30 and the inner surface of the handle 2. Note that a pin 20 for raising and lowering the punch shaft 5 is horizontally suspended on the handle 2 at a position slightly rearward than the root 21 of the handle 2.
Further, the position is also behind the support shaft 22. When the free end 23 of the handle in the raised position is pushed down, the pin 20 descends while drawing an arc-shaped trajectory with the support shaft 22 as the fulcrum. A long hole is drilled in the support plate 3 (not shown), and the pin 20 traverses the inside of the long hole. Therefore, the spring 2
The elastic force of 4 causes the free end 23 of the handle to rise when the pressing force on the handle 2 is released, but the rise is stopped when the pin 20 abuts against the upper end of the elongated hole. The stopped state is shown in FIGS. 2 and 3.

A document holding mechanism 6 is provided using the lifting and lowering of the pin 20. As can be seen in FIG.
It is made of a somewhat wide holding plate 6, and the holding plate 6 has a vertically long hole 60 in its center.
0 is engaged with the pin 20. Also, the pressing plate 6
is provided so as to rise and fall along the outside of the support plate 3, and the upper end of the presser plate 6 is bent onto the upper side 32 of the support plate.
The bent portion 61 is bifurcated so that it does not interfere with the punch shaft 5, or a through hole is formed so that the punch shaft 5 can move up and down as shown in FIG. The bent part 61 is connected to the upper side 32 of the support plate.
A leaf spring 65 having a hairpin-like elasticity that always acts to press against the bent portion 61 and the upper side 32 of the support plate is incorporated so as to pinch the bent portion 61 and the upper side 32 of the support plate. Therefore, the elasticity of the leaf spring 65 is constantly pressed, pressing the lower end of the plate 6 onto the front half 11 of the base as shown in FIG. In addition, the punch shaft 5 is attached to the hairpin-shaped leaf spring 65.
There is a through hole for passing through.

The vertically elongated hole 60 of the holding plate 6 is designed to have a length that does not hinder the descent of the pin 20 when the handle 2 is pushed down to make a hole in the document A. When released, the handle 2 automatically rises by the spring force 24, and the pin 20 abuts against the upper end of the vertical hole 60 just before returning to the uppermost position, so that when the handle 2 returns to the uppermost position. The holding plate 6 is also slightly raised by the pin 20 against the elasticity of the leaf spring 65, and as shown in FIG. has been established.

As described above, when the document punch 1 is not in use, the document holding mechanism 6 has the handle 2 raised to its uppermost position, and at the same time, the holding plate 6 is also in the raised position, so that the document holding mechanism 6 cannot be moved onto the front half 11 of the base. Document A
There is no problem with insertion. When the handle 2 is pushed down to make holes A ₁ and A ₂ in the inserted document A, at that moment the pin 20 descends from the lower end of the vertical hole 60, and the plate 6 is immediately pressed by the leaf spring 65. It descends and presses the document A onto the front half 11 of the base. This prevents the movement of document A or the occurrence of wrinkles on document A, which tends to occur when attaching reinforcing piece B, and prevents attaching reinforcing piece B to document A.
There is a feature that allows it to be placed in the specified position reliably and beautifully.

In order to prevent the holding plate 6 from rising unnecessarily, a small protrusion 67 is provided on the side surface of the supporting plate 3.
The steps of the holding plate 6 are made to abut against this.

Even if the reinforcing piece B is stuck to the specified position of the document A and the punch shaft 5 punches a hole in the document A along with the reinforcing piece B, the reinforcing piece B does not always hold the document A firmly.
It does not necessarily mean that it is attached to the Therefore, after the reinforcing piece B is stuck to a predetermined position of the document A, a mechanism 7 is provided which makes a hole while pressing the reinforcing piece B and the document A onto the front half 11 of the base. (See Figures 3 and 5.) After pressing down the reinforcing piece B, the mechanism 7 places a pressing plate 70 having a suitable width under the sleeve portion 31 of the seat plate 30, and presses the pressing plate 70. The part that extends forward from the sleeve part 31 is bent upward at the front end of the sleeve part 31, and is further bent horizontally above the sleeve part 31 with a considerable distance from the upper surface of the sleeve part 31 to form the press operating plate 71. No, the rear end of the actuating plate 71 extends above the seat plate 30. The pressing plate 70 and the pressing operation plate 71 both have holes 72 and 73 through which the punch shaft 5 passes, so that the pressing plate 70 moves the document A from above the document A to which the reinforcing piece B is pasted onto the front half 11 of the base. A leaf spring 74 is attached to the rear half of the pressing actuating plate 71, and the tip of the leaf spring 74 is elastically pressed in order to keep the pressing plate 70 constantly raised and pressed against the back side of the sleeve portion 31. The pin 2 extends in the direction of the punch shaft 5.
0 is engaged. Thus, the pressing operation plate 7
1. Therefore, the pressing plate 70 is constantly raised by the leaf spring 74 when the handle 2 is in the raised position, and at this time, the document A is inserted onto the front half 11 of the base to a predetermined hole drilling position. I can do it.

Note that a helical spring 75 is wound around the punch shaft 5 above the pressing operation plate 71;
The upper end of 5 does not act on the pin 20 normally, that is, when the handle 2 is raised.

In the mechanism 7 described above, when the handle 2 is pushed down to make a hole in the document A, the document holding mechanism 6 first descends and presses the document A onto the front half of the base 11 as described above. At this time, although the pin 20 descends somewhat, the leaf spring 74 engaged with the pin 20 only slightly weakens its elastic force and still presses the pressing plate 70 against the back side of the sleeve portion 31.

In this way, when the handle 2 is pushed down, one of the reinforcing pieces B is sent out onto the document A from the cassette 4 installed in the base 10, during a short period of time before the pressing plate 70 has descended. The ratchet lever 8 is moved from the position shown in chain lines in FIG. 4 to the position shown in solid lines in FIG. 4, and the handle 2 is subsequently pushed down. Then, the leaf spring 74 that is engaged with the pin 20 will be lowered as the pin 20 is lowered, and only then will the pressing plate 71 be lowered.
0 on the front half 11 of the base. In this way, the pressing plate 70 presses down the reinforcing piece B stuck to the document A from above.

The subsequent depression of the handle 2 further lowers the pin 20, so that the pin 20 in turn compresses the helical spring 75 on the pressure actuating plate 71, and thus the spring force 75 causes the pressure plate 70 to force the front half 11 Press it upwards to firmly press the reinforcing piece B onto the document A. In addition, when the crimping is in such a state, the punch shaft 5 descends and punches a hole in the document A together with the reinforcing piece B.
Open A ₁ and A ₂ . (See Figure 5) The cassette 4 for feeding out one piece of reinforcing piece B with one push-down operation of the handle 2 has 6th, 7th,
As can be seen in Figure 8, it has a plastic container 40 with a snail-shaped side surface, and its width is somewhat wider than the diameter of the reinforcing piece B.
The size is such that the release tape C to which the reinforcing piece B is attached can be fed out without shaking much inside.

Since the release tape C and the reinforcing piece B are already known, a detailed explanation of their materials etc. will be omitted, but in the example shown here, the reinforcing piece B is circular and one side is The adhesive surface B ₁ is the adhesive surface B ₁ .
It is stuck on release tape C at specific intervals.
There is a small hole _B2 in the center of the reinforcing piece B.
B ₂ is a hole that also passes through the release tape C.

The container 40 is a mechanism for feeding out the tape C from the cassette container 40 in which the release tape C is wound and stored.
The tape feeding chamber 41 is provided in a continuous manner on the side surface of the tape feeding chamber 41 . The tape C feeding mechanism is made up of a tape feeding roller 50 provided approximately at the center of the feeding chamber 41, and the feeding roller 50 has a width that is approximately the same as the width of the feeding chamber 41. The tape C can be completely placed on the peripheral surface of the roller 50, and ratchet wheels 51, 51 protruding outward from the wall of the delivery chamber 41 are provided on both left and right end surfaces of the roller 50. The short shaft 52 is engaged with a bearing plate 42 protruding from the tape delivery chamber 41, and the roller 50 is supported so as to be rotatable in the tape delivery chamber 41. For this reason, it goes without saying that holes 43 through which the ratchet wheel 51 can rotate are formed in both left and right walls of the tape delivery chamber 41. (Second,
(See Figure 5) Small protrusions 53 are provided on the circumferential surface of the tape feed roller 50 at specific intervals along the center line of the circumferential surface.
The small protrusion 53 enters the small hole _B2 of the release tape C placed on the circumferential surface of the roller 50, and when the roller 50 rotates, the tape C is wound onto the roller 50 by its rotation and sent out. The spacing and number of protrusions 53 are determined based on the relationship between the number and position of the pawls on the ratchet wheel 51 and the spacing between the small holes _B2 on the release tape C.

Small hole B ₂ of tape C in small protrusion 53 of roller 50
The tape guide plate 4 is placed close to the circumferential surface of the roller 50 in order to ensure that the tape guide plate 4 is engaged with the roller 50 to ensure that the tape C is fed out when the roller 50 rotates.
3 are protruded from the left and right side walls of the delivery chamber 41 so as not to obstruct the rotation of the small protrusions 53 of the roller 50. As seen in FIG. 6, in the upper part of the delivery chamber 41, the guide plate 43 is provided below the delivery port 44 at the front end of a cover plate 47 provided on the upper side of the delivery chamber 41, and connected to the tape folding plate 45. However, in the lower part, it ends at just enough to surround the semi-circumference of the roller 50.

The reinforcing piece B is adhered to the release tape C at its adhesive surface _B1 , and the release tape C is wound up and stored in the container 40 with the attached reinforcing piece B facing upward. In order to automatically peel off the reinforcing piece B from the release tape C, it is necessary to fold the tape C sharply downward. Therefore, the upper part of the tape guide plate 43 is provided to protrude into the feeding chamber 41 so that the tape C can run along the upper side of the tape feeding chamber 41, and the tape folding plate 45 is connected to the tape guiding plate 4.
3, it is provided above the delivery chamber 41, and its tip protrudes from the delivery chamber 41 by several m/m.

A cover plate 47 is provided on the upper surface of the tape delivery chamber 41 to prevent fingers from touching the release tape C.
is applied, and the tape delivery end of the cover plate 47 is connected to the delivery chamber 4.
A tape outlet 44 is formed by protruding from 1 m/m to several m/m.

On both left and right end surfaces of the tape feed roller 50, slightly longer grooves 54 are provided with a specific length at positions close to the circumferential edge of the roller 50 and at the same spacing as the pawls of the ratchet wheel 51. This is shown in dotted lines in FIG. This groove 5
A bullet plate 48 having protrusions 49 protruding into the chamber 4 is provided by cutting and raising the wall plates on both the left and right sides of the delivery chamber 41. The bullet plate 48 normally protrudes to the left and right sides of the delivery chamber 41 as shown in the figure, and therefore the protrusion 49 fits into the groove 5.
It's out of 4. The roller 50 can therefore rotate freely, which allows the release tape C contained in the cassette 4 to be easily wound onto the feed roller 50.

Also, on one side of the circumference of the tape feed roller 50,
The same number of anti-rotation grooves 55 as the small protrusions 53 are provided with the deepest depth at the same position as the small protrusion 53, and resilient pawls 56 falling into the grooves 55 are provided to protrude upward from the lower side wall of the delivery chamber 41. Ru.

A separating piece 57 is provided at the bottom of the feeding chamber 41 for separating the tape C fed by the tape feeding roller 50 from the circumferential surface of the roller 50.
The edge protruding from the delivery chamber 41 of No. 7 is provided with saw teeth 58 for cutting the tape C.

As shown in FIG. 6, in the cassette 4 having the above structure, the release tape C is pulled out from the container 40 along the upper cover plate 47 of the delivery chamber 41,
At this point, the folding plate 45 is used to rapidly turn the paper downward and pass between the guide plate 43 and the roller 50.
1 to the front of the delivery chamber 41.

The cassette 4 is punched with a hole punch 1 as shown in Figure 2.
A groove 15, through which the width of the cassette 4 can be passed through the rear half 12 of the punch base, in order to be assembled into the punch base.
15 are provided. The center line of the groove 15 in the longitudinal direction coincides with the center line of the punch shaft 5, so that the reinforcing piece B separated from the release tape C is pasted onto the predetermined position of the document A inserted onto the front half 11 of the base. can be worn.

In order to make it easier to insert or pull out the cassette 4 into the grooves 15, 15, the rear half 12 of the base is made low enough that the ratchet wheel 51 of the cassette 4 does not touch it, and the cassette is inserted into the bottom of the groove 15 at an appropriate position. A recess 16 into which a protrusion 59 protruding from the bottom falls is provided, and the groove 1
The cassette 4 assembled in the groove 15 is prevented from sliding out of the groove 15 unnecessarily.

A ratchet wheel 51 and its bearing plate 42 protrude from both left and right sides of the cassette 4. Therefore, the central portion 110 of the punch 1 has a cavity wide enough to allow the bearing plate 42 to pass therethrough, and the seat plate 30 mounted on the central portion 110 has a space between the seat plate 30 and the groove 15 so that the tape delivery chamber 41 can fit there. Installed at height. Base front half 1
1 is a vertical wall 17 slightly behind the punch shaft 5.
The wall 17 is adapted to abut the front end of the cassette 4 inserted into the groove 15. (See FIG. 5) A wart 18 is provided on the upper side of the vertical wall 17 and projects slightly above the surface of the metal plate 13. This is effective in preventing sagging at the bottom and allowing the reinforcing piece B to stick beautifully to the document A.

A ratchet lever 8 is attached to the handle 2, which is engaged with a ratchet wheel 51 of a cassette 4 incorporated in the punch 1 and causes the ratchet wheel 51 to rotate one pawl each time the handle 2 is pushed down. The lever 8 is connected to the seat plate 30
A part of it is inserted into a cut groove 35 formed on the rear edge, and it slides in the deep part of the cut groove 35.
The upper end of the lever 8 is fixed to the center of the handle 2 by a shaft 25.
However, it can be freely rotated about the shaft stop 25 as a fulcrum. However, the lever 8 has a tension spring 81 tensioned between it and the handle shaft 22 at a position below the shaft stop 25, and thus the lever 8 is always biased so that a part thereof is pressed deep into the cut groove 35. has been done.

The free end (tip) 82 of the ratchet lever 8 is
It is bent into a hook shape so that it can easily engage the pawl of the ratchet wheel 51, and when the handle 2 is in the raised position, the shape shown in FIG.
As shown in the dot-dashed line diagram, the tip 82 is always exposed to one pawl of the ratchet wheel 51. Also, the cut groove 35 of the lever 8
The sliding side that fits into is a specially shaped cam 80. Therefore, when the handle 2 is pushed down to the position shown in chain lines as shown in FIG. 4, the lever tip 82 engages with one pawl of the ratchet wheel 51 By continuing to push down the handle 2, the ratchet wheel 51 is rotated in the direction of the arrow. However, when the ratchet wheel 51 is turned by one pawl, the lever tip 82
is immediately removed from the claw as shown in solid line in FIG. 4, thereby preventing the release tape C from being unnecessarily fed out from the cassette 4.

As mentioned above, the sliding direction of the ratchet lever 8 is controlled by the cut groove 35, and the side where the ratchet lever tip 82 acts on the ratchet wheel 51 is connected to the punch of the cassette 4 incorporated in the base groove 15 in this example. This is the inner side in 1. However, the cassette 4 has ratchet wheels 51 protruding from both left and right sides. Therefore, no matter which side of the punch 1 the cassette 4 is installed in the base groove 15, the ratchet lever 8
can feed out the release tape C from the cassette 4.

When the ratchet lever tip 82 engages the ratchet wheel 51, the tip 82 presses the bullet plate 48 (see FIG. 7) protruding from the side of the cassette 4 so that it is flush with the side wall of the cassette 4. (See Figure 4). At this time, the protrusion 49 on the bullet plate 48 enters the groove 54 of the tape feed roller 50, and even if the handle 2 is pushed down forcefully, the roller 5
0 rotates only within the range of the concave groove 54 into which the protrusion 49 has entered. Further, when the roller 50 rotates with this restriction, the resilient claw 56 falls into the reverse rotation prevention groove 55 of the roller 50 to prevent the roller 50 from rotating in the reverse direction.
This prevents the tape C from being pulled back into the cassette 4. Reverse stop mechanism 55, 5 of this roller 50
6, the push-down operation of the handle 2 is released,
When the handle 2 is suddenly returned to the raised position by the spring 24, the ratchet lever tip 82 acts on the ratchet wheel 51 to prevent the ratchet wheel 51 from being reversed.

The reinforcing piece B is removed, leaving only the release tape C, which is sequentially sent out from the punch 1 from the bottom of the cassette 4 through a passage 19 made on the bottom plate of the front half of the base 11. Appropriate cutting can be performed using a serrated cutting blade provided at the outlet.

The reinforcing piece B may not necessarily need to be attached to the document A. In that case, the cassette 4 can be removed from the punch 1, but even if the cassette 4 is still installed in the punch 1, the reinforcing piece B
A mechanism is provided to prevent the liquid from coming out of the cassette 4.

As seen in FIG. 3, the punch central portion 11
A shallow groove is provided in the top surface of the central portion 110 on the lower side of the seat plate 30 mounted on the seat plate 30, and an actuation plate 85 that slides in the groove is fitted into the groove, and a part of the actuation plate 85 is inserted upward. A knob 87 is provided that protrudes from the knob 8.
7 is made to protrude slightly above the seat plate 30 through a longitudinally long window hole 36 formed in the seat plate 30, and the rear part of the actuating plate 85 is formed into a cavity in which the cassette 4 is placed on the left and right sides of the central part 110, as shown in FIG. A conversion lever 88 is formed which projects slightly inward and abuts against the cam 80 of the ratchet lever 8.

In this configuration, when the knob 87 is pulled rearward within the window hole 36, the converting lever 88 retracts the ratchet lever 8 against the tension spring 81 acting thereon to the position shown in two-dot chain diagram in FIG. The position of the ratchet lever 8 is such that the tip 82 of the lever is removed from the ratchet wheel 51 of the cassette.
In this way, even if the handle 2 is pushed down, the ratchet lever 8 is simply moved behind the ratchet wheel 51 by the conversion lever 88, and the release tape C is removed from the cassette 4.
cannot be extracted. In other words, only the punch shaft 5 is lowered.

In order to lock the actuating plate 85 in the front position or the rear position of the window hole 36, a deeper groove is formed in the central portion 110 directly below the actuating plate, and the warped bullet plate 86 is inserted into the groove. Fitted into the bullet plate 86
The wart is elastically depressed into one of two holes in the front and rear holes formed in the actuating plate 85. Therefore, when the actuating plate 85 is slid with the knob 87, the wart that has fallen into either of the holes will come out against its own elasticity, allowing the actuating plate 85 to slide, and then the wart will come out again. It falls into one hole and locks the actuating plate 85 in that position.

Functions and Effects of the Invention As described above, the document punch of the present invention has the lower part of the ratchet lever whose upper part is attached to the handle slidably fitted into the cut groove provided in the base, and the sliding side is moved into the cut groove by the spring. In addition, the sliding side of the lever is used as a cam to guide the operation of the lever, so the sliding range of the lower end of the lever is always restricted by the cut groove, and the cam The lever tip can be reliably engaged with the ratchet wheel through the guidance of
The action of feeding out the reinforcing pieces can be made almost the same each time, and each reinforcing piece can be fed out onto the document reliably and completely.

In addition, when it is not necessary to feed out the reinforcing piece, it is possible to easily and reliably retract the pawl rod to a position where the tip does not engage with the gear by simply reducing the depth of the cut groove. can.

[Brief explanation of drawings]

The attached drawings show one embodiment of the present invention, and FIG. 1 is a perspective view of a document A with a reinforcing piece B attached thereto, FIG. 2 is a perspective view of a document punch with one cassette removed and a portion broken, and FIG. Fig. 3 is a vertical side view of the main part of the document punch with the cassette removed, Fig. 4 is a side view showing the operation mode of the document holding mechanism 6 and the ratchet lever 8, and Fig. 5 is a side view of the main part of the document punch with the cassette removed. Side view of partially broken document punch, No. 6
The figure is a partially broken side view of the release tape storage cassette 4, and FIGS. 7 and 8 are plan views of two different modes of breaking the same. 10 is the base, 110 is the center part, 30 is the seat plate,
35 is a cut groove, 36 is a window hole, 4 is a cassette, 50
is the tape feed roller, 51 is the ratchet wheel, 8 is the ratchet lever, 80 is the cam side, 82 is the tip of the lever, 8
5 is an operating plate, 86 is a bullet plate, 87 is a knob, and 88 is a conversion lever.

Claims (1)

[Claims] 1. A handle equipped with a hole punch shaft that is constantly biased on a base and raised to a specific height,
A ratchet lever for feeding out the reinforcing piece tape is attached, and the tip of the lever faces the ratchet wheel for feeding out the reinforcing piece tape of the cassette that incorporates the reinforcing piece tape incorporated in the base, and the ratchet lever is connected to the handle. The document punch is provided with a mechanism for attaching the reinforcing piece to the document immediately before punching a document hole in the document inserted directly under the punch shaft by rotating the punch by one claw when the handle is lowered; The ratchet lever is attached at the upper part and moves up and down as the handle moves up and down, and the lower part of the ratchet lever is slidably fitted into a cut groove provided in the base, and is biased by a spring in the direction of pressing the sliding side into the deep part of the cut groove. The sliding side of the lever is a cam, and when the handle is pushed down, the tip of the lever is guided by the cam so that it slides into one position of the ratchet wheel.
A document punch equipped with a document spelling hole reinforcing piece pasting mechanism, characterized in that the tip of the lever is configured to be detached from the ratchet wheel after it engages with a pawl and rotates the ratchet wheel. 2. A hole punch shaft is attached to the handle, which is constantly energized on the base and raised to a specific height.
A ratchet lever for feeding out the reinforcing piece tape is attached, and the tip of the lever faces the ratchet wheel for feeding out the reinforcing piece tape of the cassette that incorporates the reinforcing piece tape incorporated in the base, and the ratchet lever is connected to the handle. The document punch is provided with a mechanism for attaching the reinforcing piece to the document immediately before punching a document hole in the document inserted directly under the punch shaft by rotating the punch by one claw when the handle is lowered; The ratchet lever is attached at the upper part and moves up and down as the handle moves up and down, and the lower part of the ratchet lever is slidably fitted into a cut groove provided in the base, and is biased by a spring in the direction of pressing the sliding side into the deep part of the cut groove. The sliding side of the lever is a cam, and when the handle is pushed down, the tip of the lever is guided by the cam so that it slides into one position of the ratchet wheel.
The tip of the lever is configured to be detached from the ratchet wheel after engaging the pawl and rotating the ratchet wheel, and the cut groove has a depth that is such that the lever tip always retreats to a position where it is removed from the ratchet wheel. A document punch equipped with a mechanism for attaching a reinforcing piece to a document spelling hole, characterized in that the punch is equipped with a mechanism for making the hole shallower.