JPH0796475A - Cassette for stapler - Google Patents

Abstract

PURPOSE:To realize the re-use of a cassette through re-charging of a staple without discarding the cassette by engaging a pusher set in the attachable/ detachable manner through fitting the projection of the rear part of the pusher set to a hole constituted by overlapping a guide and a frame. CONSTITUTION:A pusher 21 constitutes a pusher set together with a pusher rear cap 17, a rod 20 and a coil 19. The rod 20 of the pusher set passes through the coil 19, and also passes through the hole of the pusher 21, and the pusher 21 slides in the clearance by the pushing force of this coil 19. Normally, the pusher is engaged with a frame 5 by the fitting of a projection 18 provided on the rear cap to a hole 34 in the frame 5 or the like. When the staple is used out, the fitting of the rear cap to the hole of the frame or the like is released to draw the whole pusher set. The staple is inserted so that the leg of the staple may be fitted into the clearance, and the pusher set is again inserted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cassette for a stapler, which separates a stapler main body and a cassette filled with staples and separates the stapler main body and the cassette. More specifically, the present invention relates to such a cassette, which can be reused without discarding the cassette when staples are used up.

[0002]

2. Description of the Related Art Conventionally, as a cassette of a stapler in which a stapler main body and a cassette are detachable, there are those as shown in FIGS. 1, 2 and 3. 1 and 2 are disclosed by the present applicant as JP-A-62-218080. The stapler cassettes disclosed in these documents are convenient because the cassettes filled with staples can be easily attached to and detached from the stapler body. However, in all of these conventional examples, after the staples in the cassette are used up, the entire cassette is discarded and replaced with a new cassette.
This type of cassette does not meet the recent demands of society for valuing resources and preventing dust from increasing, and the applicant can reuse the cassette even after the staples have been used up. I always thought that the structure should be improved.

Further, in the conventional cassettes shown in FIGS. 1, 2 and 3, it is difficult to remove the jammed stapler when a stapler jam occurs, and it is considered that this point should be improved. It was

[0004]

SUMMARY OF THE INVENTION The problem to be solved by the present invention is to reuse a stapler cassette in which a stapler body and a cassette are detachable, after the staples are used up, without discarding the cassette. An object of the present invention is to provide a staple cassette having a structure capable of performing the above.

Another object of the present invention is to provide a staple cassette having a structure which makes it easy to remove a jammed stapler when a stapler jam occurs.

[0006]

[Means for Solving the Problems] In order to solve the problems,
In the present invention, the cap is coupled to one end of the frame, and the combined body of the frame and the cap forms the staple ejection opening at the one end.
Further, a frame cover is detachably attached to the side surface opposite to the opening. The frame cover is fixed to the frame to some extent by engagement of a notch provided on the frame and a protrusion provided on the frame cover.

If at least one of the frame and the frame cover is made of a relatively soft resin or the like,
The engagement between the notch and the protrusion can be easily released. As a result, at the time of disassembly and repair, the frame cover and the frame can be separated and the cassette can be disassembled. Furthermore, the remaining amount of the stapler can be confirmed from the outside by forming the frame or the frame cover with a transparent resin or the like.

A guide is housed inside the frame. At this time, the hook-shaped projection of the frame and the hole of the guide are engaged with each other, and the projection provided on the cap coupled to the frame and the guide. The protrusions provided on the frame are connected by a spring, and the guide can slide slightly on the frame. By this sliding, the opening of the staple ejection opening can be made slightly larger than in normal times. This facilitates removal of jammed staples. Further, a gap is formed between the guide and the frame, and the staple and the pusher slide in this gap. The pusher constitutes a pusher set together with a pusher rear cap, a rod and a coil. The rod of the pusher set passes through the coil and further through the hole of the pusher, and the pushing force of the coil causes the pusher to slide in the gap.

Usually, the pusher is engaged with the frame by fitting a projection provided on the rear cap and a hole in the frame or the like. When the staples have been used up, etc., remove the fitting between the rear cap and the holes in the frame and pull out the pusher set together. Then, the staples are inserted from the rear part so that the legs of the staples fit in the gaps, the pusher set is inserted again, and this is used again as a cassette.

[0010]

FIG. 4 is a perspective view showing an embodiment of the present invention. 5 is a plan view showing the same embodiment, and FIG. 6 is a bottom view showing the same embodiment. In the description of the present invention, each direction of the stapler cassette according to the present invention will be defined as an X-axis direction, a Y-axis direction, and a Z-axis direction in the description of the invention, as indicated by the coordinate axes of FIG. As shown in FIGS. 4, 5, and 6,
From the appearance of the completed state, the cassette 4, the frame 5, the frame cover 6, the cap 8 and the rear cap 17, which is a component of the pusher set 10, are exposed. When the frame cover 6 is removed and each component article is developed, it becomes as shown in FIG. That is, the cassette 4 is
Further, a guide 7, a guide spring 9 and a pusher set 10 are included inside.

The frame cover has a pair of three protrusions 11a, 11b, 11c, 11d, 11e and 11 on each of two sides with an axis parallel to the Z axis interposed therebetween.
with f (FIG. 7). These correspond to the six notches 12a, 12b, 12c, 12d, 12e and 12f on the side surface of the frame, respectively.
It serves as a means for fixing the frame 5 and the frame 5 to some extent. Incidentally, the means for this is that the correspondence between the protrusion and the notch is not limited to the three sets as in the embodiment, but may be one set or two sets, more may be provided, and the shape as in the embodiment. It may be a triangle, a semicircle, etc. instead of a square.

At least one of the frame cover and the frame is made of a soft and transparent resin to some extent,
The other is made of hard plastic. Both may be soft and transparent resins. For example, when the frame is made of a soft resin to some extent, the projection and the notch can be disengaged from each other by slightly expanding the frame in the Y-axis direction. Even when the frame cover is made of soft resin, it is possible to detach them similarly. This makes it easier to disassemble and repair the cassette, and
By making at least one of the frame and the frame cover transparent, the remaining amount of the stapler inside can be confirmed from the outside.

As shown in FIG. 7, the frame 5 has a pair of cap guide protrusions 14 with the Z axis interposed therebetween. The cap guide protrusion 14 has a shape that can be fitted in the cap guide groove 15 of the cap 8, and the width (outer diameter) of the frame 5 in the Y-axis direction is equal to the width (inner diameter) of the cap 8 in the Y-axis direction. The size is such that they can come into close contact with each other, and when the cap 8 is fitted to the frame 5, the inner wall of the cap 8 and the frame 5
The outer wall of the frame 5 and the cap guide protrusion 14 and the cap guide groove 15 are closely fitted to each other, and the frame 5 and the cap 8 are firmly fixed to some extent, and the frame 5 and the cap 8 are coupled to each other as shown in FIG. The body is completed.

A guide 7 having a width in the Y-axis direction smaller than that of the frame 5 is mounted inside the frame 5 (FIGS. 7, 8, 10, 11, 12, and 14). Guide 7 is
As shown in FIG. 12, holes 27, 28, and 29 are provided.
The holes 27 and 28 are shaped to fit with the frame hook protrusions 31 and the frame hook protrusions 32, respectively (see FIG. 1).
3). Further, as shown in FIG. 9, the hook portion of the frame hook protrusion 31 and the frame hook protrusion 32 has holes 27, 28.
Since it is smaller than the above, the guide 7 can be slightly slid on the frame 5 in the Z-axis direction. Further, the guide 7 has a guide hook projection 26. As shown in FIG. 9, the guide hook protrusion 26 is engaged with the cap hook protrusion 30 of the cap 8 by the guide spring 9. Then, the holes 27 and the frame hook projections 31 are fitted, the holes 28 and the frame hook projections 32 are fitted, the cap hook projections 30 and the guide hook projections 26.
The guide spring 9 engages the guide 7 and the combined body of the frame 5 and the cap 8 while allowing a slight sliding in the Z-axis direction.

The cap 8 has a staple outlet hole 3
5 (FIG. 6, FIG. 9, FIG. 11), a guide 7,
The holes 27 and the frame hook projections 31 and the holes 28 and the frame hook projections 32 are arranged so that the staple outlet hole 35 is not blocked even when the combined body of the frame 5 and the cap 8 is engaged. ing. Further, in front of the guide 7, there are guide front end protrusions 13a and 13b in the X-axis direction (FIG. 7). The pair of protrusions correspond to a slight sliding in the Z-axis direction inside the staple outlet hole 35. Engage loosely (Fig. 6).

The frame 5 is shown in FIGS. 6, 7, 9 and 13.
As shown in FIG. When the frame 5 and the guide 7 are slidably engaged, the hole 34 is formed in the hole 2 of the guide 7.
Although the hole 34 is in a position overlapping with 9, the hole 34 is larger than the hole 29. Therefore, when the guide 7 slightly slides on the frame, the hole 29 does not block the hole 34 overlapping therebelow, and the whole hole is always covered. It can keep its shape.

The pusher set 10 is shown in FIGS.
The structure is as shown in FIG. That is, the rear cap 17 is provided at one end, the rod 20 that engages with the rear cap 17 and extends toward the other end, the pusher 21 that is in direct contact with the staple t (FIG. 8), and the rod support portion 23 that is fixed inside the pusher 21. , The support hole 2 near the center of the rod support 23
4 and the inside diameter of the support hole 24 is large enough to slidably pass the rod and support it (FIG. 7). The width (outer diameter) of the pusher 21 in the Y-axis direction is smaller than the width (inner diameter) of the frame 5 in the Y-axis direction.
Since the width (inner diameter) of the guide 1 in the Y-axis direction is smaller than the width (outer diameter) of the guide 7 in the Y-axis direction, the side wall of the pusher 21 may enter the gap 33 between the frame 5 and the guide 7. Then, the pusher 21 slides in the gap 33 between the frame 5 and the guide 7 in the Z-axis direction (FIG. 8).

The rear cap 17 of the pusher is
The rear cap hook projection 18 has the rear cap hook projection 18 (FIGS. 7, 9, and 15), and the rear cap hook projection 18 has a hole 29 in the guide 7.
And the hole 34 of the frame 5 are overlapped with each other and engage with each other while allowing a slight sliding movement (FIGS. 6 and 9).

FIG. 8 is a plan view with the frame cover removed. FIG. 8 is a view showing only the state where the staple t is filled in this specification. As can be seen clearly in FIGS. 8 and 9, pusher springs 19 supported by the rods 20 are engaged with the walls of the rod support 23 and the inner wall of the rear cap 17, respectively.
The pressing force of 9 pushes the staple t forward in the Z-axis direction through the pusher 21, and in the staple exit hole 35, the staple driving member 37 of the stapler 36.
It is driven by (Fig. 16).

When the staple t of the cassette 4 is replaced or a new one is loaded by using the staple t, the user holds the rear cap 17 with his / her finger and pushes the rear cap 17 forward in the Z-axis direction to slightly lift it. The engagement between the rear cap hook projection 18 and the hole 29 or the like is released, and the pusher set 10 is pulled out. After that, the staples are loaded so that the staple legs come in the gaps 33, the pusher set 10 is inserted again, and the rear cap hook projections 18 and the holes 29 are inserted.
Etc.

An example of a method of mounting / removing the cassette according to the present invention to / from the stapler will be described. When mounting the cassette 4 on the stapler 36, as shown in FIG. 17, the cassette 4 is inserted in the arrow F direction with a light force. At this time, the engagement state of the stapler 36, the cassette 4, and the locking means 38 is as shown in FIG. That is, the locking member 39 of the locking means 38 is attached to the locking protrusion 16 of the cassette.
The cassette 4 and the stapler 36 are engaged so as to be fixed to each other.

When the cassette 4 is detached from the stapler 36, as shown in FIG. 18, the locking means 38 of the stapler 36 is pushed in the direction of arrow D with one hand with a light force, and the arrow G
Pull out in the direction. At this time, as shown in FIG. 16, when the locking means 38 is pushed in the direction of arrow D, the locking member 39 moves in the direction of arrow E and the locking projection 6 and the locking member 39 are disengaged.
It is possible to pull out the cassette 4 in the arrow G direction.

FIG. 19 shows an embodiment in which the cassette and the stapler are in different engagement states. In this embodiment, the portion corresponding to the locking protrusion 16 of the previous embodiment has a hole 43.
The stapler and the cassette are engaged by fitting the locking means 42 into the hole 43. By pushing the locking means 42 in the direction of arrow H, the locking means 42 is disengaged from the cassette 40, and the cassette 40 can be pulled out from the stapler 41.

[0024]

According to the present invention, since the pusher set can be easily attached and detached and the stapler can be filled and replaced by removing the pusher set, when the staple is used up, the staple can be re-installed without discarding the cassette. Can be used by filling.

Further, since the guide or the cap can slightly slide on the frame by the spring, the size of the stapler outlet hole can be changed, and the stapler can be easily removed when the stapler is jammed.

Further, the frame cover and the frame are
Since the frame is made of a soft and transparent resin to some extent, it is possible to disengage the protrusions and cutouts and release them by slightly expanding the frame in the Y-axis direction. It will be easy. Also, by making the frame cover transparent, the remaining amount of the internal stapler can be confirmed from the outside.

[Brief description of drawings]

FIG. 1 is a perspective view showing a conventional example.

FIG. 2 is a sectional view of the conventional example shown in FIG.

FIG. 3 is a perspective view showing a conventional example.

FIG. 4 is a perspective view of a stapler cassette according to the present invention.

FIG. 5 is a plan view of a stapler cassette according to the present invention.

FIG. 6 is a bottom view of the stapler cassette according to the present invention.

FIG. 7 is an exploded perspective view showing components constituting the stapler cassette according to the present invention.

FIG. 8 is a plan view showing a state where a frame cover, which is one component of the present invention, is removed.

9 is a cross-sectional view taken along the line AA ′ of FIG.

10 is a cross-sectional view taken along the line BB ′ of FIG.

FIG. 11 is a plan view showing a state in which the frame cover and the pusher set, which are one component of the present invention, are removed.

FIG. 12 is a plan view of a guide which is one component of the present invention.

13 is a cross-sectional view taken along the line CC ′ of FIG.

FIG. 14 is a left side view of FIG.

FIG. 15 is a left side view of a pusher set which is one component of the present invention.

FIG. 16 is a cross-sectional view showing a usage example of the stapler cassette according to the present invention.

FIG. 17 is an explanatory diagram showing a usage example of the stapler cassette according to the present invention.

FIG. 18 is an explanatory diagram showing a usage example of the stapler cassette according to the present invention.

FIG. 19 is an explanatory diagram showing a usage example of the stapler cassette according to the present invention.

[Explanation of symbols]

 1 ... Conventional cassette 2 ... Coil spring 3 ... Conventional cassette 4 ... Cassette 5 ... Frame 6 ... Frame cover 7 ... Guide 8 ... Cap 9 ... Guide spring 10 ... Pusher set 11 (a, b, c) ... Frame cover protrusion 12 (a, b, c) ... Frame notch 13 (a, b) ... Guide front end protrusion 14. ..Cap guide protrusions 15 ... Cap guide grooves 16 ... Locking protrusions 17 ... Rear caps 18 ... Rear cap hook protrusions 19 ... Pusher springs 20 ... Rods 21 ... Pushers 22・ ・ ・ Pusher top surface 23 ・ ・ ・ Rod support portion 24 ・ ・ ・ Support hole 25 ・ ・ ・ Notch 26 ・ ・ ・ Guide hook projection 27 ・ ・ ・ Hole 28 ・ ・ ・ Hole 29 ・ ・ ・ Hole 30 ・ ・・ Ca Hook protrusion 31 ... Frame hook protrusion 32 ... Frame hook protrusion 33 ... Gap 34 ... Hole 35 ... Staple exit hole 36 ... Stapler body 37 ... Staple driving member 38 ... -Locking means 39 ... Locking member 40 ... Cassette 41 ... Stapler main body 42 ... Locking means 43 ... Hole t ... Staple

Claims (3)

[Claims] 1. A cassette-type stapler cassette in which a staple-filled cassette and a stapler body are formed so as to be freely inserted and removed, and a combined body of a frame and a cap has a small opening for ejecting staples at one end thereof. Formed between the guide and the guide that slidably engages on the frame by the engagement of the guide and the guide spring and the hole and the protrusion inside the connector. A pusher set that fits in the gap and slides in the gap by a pressing force of a spring directed by a rod to press the staples. The pusher set is configured to engage with the combined body, and the pusher set has a projection on the rear portion of the pusher set, the guide, and the frame. Is in the stapler cassette, characterized in that engaged detachably by fitting the holes constituting. 2. The cassette for a stapler according to claim 1, wherein the coupling body is engaged with a protrusion provided on the cap and a protrusion provided on the guide, and the guide spring. The projection provided on the frame and the hole provided on the guide engage with each other to slide the guide on the frame, and the size of the small opening can be changed. A stapler cassette characterized by the following. 3. The stapler cassette according to claim 1, wherein at least one of the frame and the frame cover is made of a soft and transparent resin.