JPH01164573A - Floating preventive device for multiple-device binding needle in paper binder - Google Patents

Abstract

PURPOSE: To eliminate the necessity of a needle cover and to prevent the jumping-out of many stitching needles during use by providing a stitching needle floating preventive member in a frame in parallel with a sliding guide part for a needle presser. CONSTITUTION: When a handle 1 for re-supplying stitching needle 6 is opened, the handle 1 is rotated with an axis 19 as a fulcrum. Followingly, a needle presser 7 is retreated by the tractive force of a tensile coil spring 11 pulled via a fold back part 13 between a latch projecting piece 4 in the handle 1 and a hook-up projection 12 above the needle presser 7. Thus, a gap is formed between the needle presser 7 and a floating preventing part 8. Stitching needles are sequentially re-supplied from the upper side of the gap, then the handle is closed, and the stitching needles are pushed by the needle presser 7 to be used. In this case, multiple-loaded stitching needles are guided on an upper part by the floating preventive part 8 and the floating thereof is prevented. After a paper sheet is placed on the bent base 17 of a base 16 in this state, the handle 1 is pressed to push a stitching needle 5 in a front end in the frame 5 by a press cutter and then the paper sheets are stitched.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a stapler for binding stacked sheets of paper, that is, a paper binding device. More specifically, the present invention relates to a lifting prevention section for multiple loaded staples in a paper binding device that allows a large number of unitized staples to be loaded in a frame with an extremely simple structure.

(Prior art) A paper binder is a device for binding various types of stacked documents;
Various types of staplers have been proposed. This paper binding device has a U-shaped binding needle built-in. A predetermined number of staples (normally 50 staples) are glued together to form a unit, and the unit staples are loaded into a paper binding device in multiple series. Since the number of unit staples is limited, it is also known that the unit staples are connected and loaded in multiple units.

Conventionally, in paper binding machines that load a plurality of unit staples, when the unit staples are connected and loaded into the frame and pushed from the rear, the unit staples and the parts that come in contact with the unit staples overlap, It lifts up and pops out of the frame. In order to prevent this lifting, a needle cover is provided between the frame in which the staple is loaded and the handle.

For example, in the Japanese Utility Model Publication No. 48-19653, "Stapler Cover Device for Stapler," a gutter-like frame with an open top is provided with a frame in order to prevent unit staples from lifting up as described above. A stapler cover is provided on the upper surface of the stapler inside. Furthermore, in order to improve the fit between the staple cover and the frame, protrusions are provided on both sides of the staple cover, and a hook is provided with protrusions and inclined surfaces on both sides of the frame to fit with the projecting pieces. A stop device is provided. Fit the protrusion and the latching device and hold the binding needle,
This is to prevent the unit staples from overlapping and floating at the joints.

As mentioned above, all paper binding devices in which a large number of unit binding staples are connected and loaded are provided with a needle cover device to prevent the binding staples from lifting up.

(Problems to be Solved by the Invention) As mentioned above, in the conventional paper binding device in which a large number of binding staples of a unit are loaded in a row, it is necessary to prevent the binding staples in the frame from lifting up and popping out. A staple cover is provided between the frame and the handle. Providing this binding cover complicates the structure of the paper binding device. When manufacturing the paper binding device, there is a drawback that it takes a lot of man-hours to attach the binding needle cover and assemble and adjust it.

The purpose of this invention is to solve the above-mentioned problems that the conventional ones have.

SUMMARY OF THE INVENTION An object of the present invention is to provide a section for preventing floating of multiple loaded staples in a paper binding device, which prevents the staples in the frame from flying out without providing a staple cover.

Another object of the present invention is to provide a floating prevention section for multiple loaded binding staples in a paper binding device that has an extremely simple structure.

(Means for Solving the Problems) The present invention takes the following measures to solve the above problems.

A base having a curved stand for the staples on the upper front surface, a frame that houses multiple units of staples and is rotatably provided on the base, and a needle pusher for pushing the staples forward in the frame. a sliding guide portion for slidingly guiding the needle pusher within the frame; a nodle rotatably provided on the base; In the paper binding device, the paper binding device is equipped with a pressing knife that pushes out the binding staple from the bent table and presses it against the curved table, wherein a lifting prevention part is provided in the frame parallel to the front sliding guide part to prevent the binding staple from lifting up. This is a feature that prevents floating of multiple loaded binding staples in a paper binding device.

(Function) When the handle is opened to replenish and load staples in the floating prevention section of the multi-loaded binding staple in the paper binding device configured as described above, the part inside the frame connected to the needle handle is opened. The needle pusher is retracted by the tension coil spring. For this reason, a gap is created between the needle pusher and the floating prevention portion of the staple provided in the frame. When the staples are sequentially refilled from above this gap and the handle is closed, the staples are pushed by the needle pusher and become ready for use. The staples loaded in multiple rows are guided at the upper part by the floating prevention part, so that they do not float up.

This allows you to easily bind sheets by placing the sheets on the curved base of the base and pressing down on the handle, just like with conventional paper binders.

(First Embodiment) Hereinafter, embodiments of the present invention will be described with reference to the drawings. A first embodiment of the present invention will be described with reference to FIGS. 1 to 6. The no-endoru 1 has a rectangular shape with a hollow interior, and two sides are open. Usually made of synthetic resin.

Inside the handle l, a push knife 2 and a handle spring 3 are fixed by well-known means such as fitting.

The push knife 2 and the handle spring 3 are integrally made by bending a metal plate. A pivot hole 1t-1 is provided at one end of the handle 1 (not shown).

Furthermore, a locking protrusion 4 is formed on the earthen wall inside the handle 1 to lock one end of a tension coil spring 11, which will be described later.

The frame 5 shown in FIG. 2 is made of a metal plate and has a rectangular parallelepiped (trough-like) shape with one side open. The frame 5 stores staples in a multiple arrangement. frame 5
In this embodiment, four units of unit-type binding needles 6, in which about 50 binding staples are connected and bonded together, can be loaded inside the unit.

As shown in FIGS. 2 and 4, the frame 5 is provided with lifting prevention parts 8, 8 for preventing the staples 6 from lifting up. The floating prevention portions 8 are formed by cutting and bending the wall surface of the frame 5, that is, by cutting and raising it. Further, on both rear sides of the floating prevention part 8, a large number of floating prevention parts 8 are provided so as to protrude inwardly as shown in FIG. The floating prevention portion 8 has a hemispherical shape, and this shape is formed by coining the surface of the frame 5 to create shallow irregularities.

This processing method is a well-known technique, and the processing method is not described in detail. Pivot holes 9 on both sides of the rear end of the frame 5
are provided on the same axis. In order to prevent the needle pusher from coming off the frame 5, retaining protrusions 14 are formed on both rear sides of the single needle pusher 7. The engaging projections 14 are inserted into sliding grooves 15 provided on both f+l+ walls of the frame 5, so that the needle pusher 7 can slide backward. The needle pusher 7 is inserted into the frame 5 and slides on the sliding groove 15.

As shown in FIG. 6, this needle pusher 7 has a staple pushing part 10 formed at the front part of the main body, and a latch protrusion 12 which connects a tension coil spring 11 at the center of the rear part. One end of the tension coil spring 11 is connected to this latching protrusion 12 . The other end of the tension coil spring 11 passes through a folded part 13 (see figure g1) provided in the front of the handle l,
It is connected to a latching protrusion 4 formed on the inner rear side of the handle 3.

For this reason, the needle pusher 7 is always pulled forward, and a large number of staples 6 loaded on the front end of the needle pusher 7 are pushed from behind.

To replenish the staples 6, open the needle 1, move the needle pusher 7 rearward along the sliding groove 15 of the frame 5, and place the staples 6 in multiple rows at the front end of the needle pusher 7. Allow loading. Next, as shown in FIG. 3, the base 16 has a metal fitting l''/ on its front upper surface for bending the binding needle 6.

On both rear sides of the base 16, side walls 18Φ are installed upwardly.
18 is formed. The rear side walls 18, 18 of the side walls 18, 18 have pivot joints 1\1119, 19 on the side walls 18, 18.
It is set so that it comes out from 18.

This outer pivot shaft 19 is inserted into the gripping hole (not shown) of the 7-end l, and the inner pivot shaft 19 is inserted into the pivot hole 9 at the rear of the frame 5. Therefore, handle 1
, frame 5, and base 16 can each rotate.

In the figure, 20 is a base spring, 21 is a bottom plate, and 22 is a base spring.
is a protrusion. It is latched with a latching protrusion (not shown) provided on the inside of the handle 1, so that the handle 1 and the frame 5 are opened to appropriate predetermined positions by the elastic force of the handle spring 3.

(Operation of the first embodiment) Since the present invention is configured as described above, in order to replenish and load the binding needles 6, when the handle 1 is opened, the needle 1 is opened.
rotates around pivot point Itill 119 as a fulcrum. Along with this, the needle is pushed by the pulling force of the tension coil spring 1 which is pulled through the folded part 13 between the latch protrusion 4 inside the handle 1 and the latch protrusion 12 above the needle pusher 7. Ingredient 7
moves back to the position indicated by the dotted line in FIG.

For this reason, the staple 6
A gap is created that is slightly longer than the length of one series. When the handle 1 is closed after the four sets of binding needles 6 are sequentially supplied and loaded from the upper part of this gap, the needle pusher 7 is moved forward by the contraction force of the tension coil spring 1. This state becomes a usable state as shown in FIG. 1, and as shown in FIG. 4 and FIG. It still touches the bottom surface of the surface and does not rise up.

As a result, similar to the conventional paper binding device, the curved table 1 of the base 16
When paper is placed on the paper 7 and the handle 1 is pushed down, the push knife 2 descends and the binding staple 6 at the front end in the frame 5 is pushed out to bind the paper. And if you release the suppression of handle 1,
Due to the elastic force of the handle spring 3, the pushing knife 2 rises as the handle l rises. The staple 6 remains in the frame 5 because it is in contact with the lower surface of the floating prevention part 8, and the staple 6 is moved forward by the needle pusher 7 due to the contraction force of the tension coil spring 11.
The whole thing moves forward and becomes usable again.

(Second Embodiment) Next, a second embodiment shown in FIGS. 7 and 8 will be described. This second embodiment is constructed to be slightly smaller than that of the first embodiment described above, and three units of staples 6 are loaded. As shown in FIG. 8, both sides of the front part of the frame 5 are bent inward to prevent floating of the binding staple 6.
- 8 are provided parallel to the sliding groove 15. Each component other than the frame 5 is almost the same as that of the first embodiment.

Therefore, the method of loading and using the stapler 6 is the same as in the first embodiment, and therefore the explanation thereof will be omitted.

(Third Example) Next, a third actual example shown in FIGS. 9 and 10 will be described. This third embodiment has the same size as the conventional paper binding device for one row (50 sheets), but it is designed to be able to load two rows (100 sheets) of binding staples. be. The upper center of a push knife 2 mounted in a handle 1 is cut and raised outward to form a latching protrusion 4.

Next, as shown in FIG. 10, the frame 5 has four inwardly round anti-floating portions 8 formed on both sides of the front portion at intervals shorter than the length of one row of staples. At the same time, the needle pusher 7 is fitted inside with a gap so as to be slidable back and forth. As shown in FIG. 9, this needle pusher 7 has a staple pusher @10 formed at the front end of its main body made of synthetic resin. Behind the side needle pushing part lO is a hook for hanging the tension coil spring 11.
2 is provided, and a folded portion 13 is further formed at the rear.

Engagement protrusions (M shown) are provided on both sides of the frame 5.
The needle pusher is fitted into sliding grooves 15 provided on both sides of the needle so that the needle pusher can slide back and forth. Then, in the needle pusher 7, one end of the tension coil spring 11 is IH fitted to the hanging protrusion 12, the middle part is wrapped around the folded part 13, and the other end is connected to the hanging IE protrusion 4 provided on the pushing knife 2. It is. For this reason, the needle pusher 7 is always pulled forward to push the stapler 6 loaded in the front part of the needle pusher 7 forward. In this embodiment, the bottom plate 21 is not provided.

Since this third embodiment is constructed as described above, when the handle l is opened to replenish the staples 6, the tension coil spring 11 and the needle pusher 7 move to the dotted line position shown in FIG. Therefore, the stapler 6 can be easily loaded. Note that the method of use is the same as that described in the first embodiment, so a description thereof will be omitted.

(Fourth Embodiment) A fourth embodiment of the present invention will be described with reference to FIG. 11. In this fourth embodiment, similarly to the third embodiment, the binding needles 6 are
It is designed to be loaded with a series (100 pieces), and on both sides of the front part of the frame 5, a floating prevention part 8 with a rib-shaped cross section is provided by coining, and a round floating prevention part 8 is provided behind it. In addition, the sliding groove 15 is formed by a slit, that is, a notch.

It should be noted that each structure and method of use other than the frame 5 are the same as those of the third implementation column, so explanations thereof will be omitted.

(Fifth Example) Next, a fifth example shown in FIG. 12 will be described. This fifth embodiment is almost the same as the fourth embodiment described above, but instead of the floating prevention parts 8, 8 of the rear prototype, through holes are drilled in the frame 5 in advance. It has eyelet studs fixed to it, and its usage, effects, etc. are as follows:
Since this is the same as that described above, the explanation will be omitted.

(Other Embodiments) Although the preferred embodiments of the float preventing section for multiple loaded binding staples in a paper binding device according to the present invention have been described above, the present invention is not limited to the above embodiments. For example, in order to move the needle pusher forward, the tension coil spring 11 is used in the embodiment described above, but a conventionally used compression coil spring may be used instead.

Although the pivot, handle 11 frame 5, and base 16 are pivoted at the same position by the rear pivot shaft, the pivot position and attachment method can also be changed as in other known techniques.

Furthermore, regarding the shape of the lifting prevention part 8 that prevents the binding needle 6 from lifting up, in this embodiment, a hemispherical shape was formed by coining and fixed with an eyelet stud, but a cylindrical shape, a cylindrical shape, etc. It may also be prismatic. Furthermore, these shapes may be fixed by riveting, welding, welding, or the like. It goes without saying that various other design changes, such as changes in configuration and materials, can be made without departing from the spirit of the present invention.

(Effects of the Invention) As detailed above, the present invention has many excellent effects and advantages as shown below.

a. Conventionally, in paper binding devices that are loaded with a large number of binding staples, a needle cover was provided between the frame and the handle to prevent the binding staples from floating up from the frame and flying out. However, in the present invention, the needle cover is unnecessary.

b. In conventional paper binding devices with multiple staples, during use or movement, the needle cover may come off from the frame due to impact, etc., and many staples may fly out, but the present invention does not. The needle will not accidentally pop out.

The simplicity of the C1 configuration simplifies assembly and adjustment, lowering costs and reducing rejects.

d1 It is more efficient because it can load more staples than the conventional type.

[Brief explanation of the drawing]

FIG. 1 is a vertical cross-sectional view of the first embodiment of the present invention, and the second
The figure is an oblique projection view of the same frame, Fig. 3 is an oblique projection view of the same pace, Fig. 4 is a cross-sectional view taken along line A-A@ of Fig. 2, and Fig. 5 is a cross-section taken along line B-B of Fig. 2. Figure 6 is an oblique projection view of the same needle pusher, Figure 7 is a vertical cross-sectional view of the second embodiment, Figure 8 is a perspective view of the same frame, and Figure 9 is a longitudinal cross-section of the embodiment shown in Figure 3. 10 is an oblique projection view of the same frame, FIG. 11 is an oblique projection view of the frame in the fourth embodiment, and FIG. 12 is an oblique projection view of the frame according to the fifth embodiment. 113. Handle, 201. Pushing sword, 3.1. Handle spring, 426. Latching protrusion, 500. Frame, 61. . Stitching needle, 736. Needle pusher, No. 10. Floating prevention part, 9. ,. Pivot hole, 10. ,, Staple pushing section, 11. ,, tension coil spring, 120. , latching protrusion, 13. ,,folding part,1
411. Engagement protrusion, 15. , , sliding groove, 16. ,,
Base, 1'7. ．． 0 songs, 19. ,, pivot axis, 22.
,, Protrusion, 23...Shoulder 1 Patent issuer Yoshio Mihashi Figure 4 Figure 5 Figure Ij
s6 diagram procedural amendment (method) April 23, 1988 1, case indication Patent Application No. 319770 of 1988 2
, Title of the invention Floating prevention part 3 of multiple loaded binding staples in a paper binding device, Relationship to the case of the person making the amendment Patent applicant address 5'79 Higashi Kiboga, Asahi-ku, Yokohama, Kanagawa Prefecture 〒24
1 @ 045-391-21744, date of amendment order: March 2, 1988 (all sending dates: 63.3.29)
) 5. Subject of amendment Drawing-20'

Claims (1)

[Scope of Claims] 1. A base having a curved stand for the stapler on the upper front surface thereof, a frame containing a plurality of units of staplers and rotatably provided on the base; a needle pusher that pushes the horizontal needle forward; a sliding guide that slides and guides the needle pusher within the frame; a handle rotatably provided on the base; In a paper binding device equipped with a pusher for pushing out a binding staple from the back and pressing it against the curved table, a lifting prevention part is provided in the frame parallel to the sliding guide part to prevent the binding staple from lifting up. A floating prevention device for a multi-unit binding needle in a paper binding machine, characterized in that: 2. A device for preventing floating of multiple loaded binding staples in a paper binding device as set forth in claim 1, wherein the floating preventing portion is provided on the sliding guide portion. 3. A device for preventing floating of multiple loaded binding staples in a paper binding device, as set forth in claim 1, wherein the floating preventing portion comprises a plurality of convex portions.