JPH08174445A - Stapler - Google Patents

Abstract

PURPOSE: To securely bend a needle into the horizontal condition in a stapler, in which both leg parts of a binding needle are to be horizontally bent, by providing a needle bending board so that it can hold the fixing condition thereof in the condition that it perfectly surrounds a through port of a paper receiver and, simultaneously, receives the elasticity of a coil spring from the lower when pressure is applied to a handle body. CONSTITUTION: A rear end of a paper receiver 13 is fitted to the inside of a base body 1 freely to be turned, and a needle bending board 8 is positioned in the bottom surface of a front side of the base body 1, and this needle bending board 8 is fitted in a through port 14 of the paper receiver 13 through a coil spring 10. Both side lower end notch parts 16 are fitted to both side stage parts 11 of the needle bending board 8 freely to be disconnected, and a slider 23 is provided inside of the paper receiver 13. The lower surface of a front stage of this slider 23 is made to contact with the top surface of a mounting board 7, which is provided in the front side of the base body 1, freely to be separated, and the right and left rear ends of a pushing body 39 provided inside of a handle body 43 are made to abut on the front side of a supporting plate 25 provided in the rear end of the slider 23. Furthermore, the tip of a spring plate 26 provided in the rear end of the slider 23 is locked with the inside of both frame plates 17 of the paper receiver 13.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a stapler.

[0002]

2. Description of the Related Art Conventionally, in the case of a stapler, a staple in a staple storage box is cut off by pressing a cover body with a cutting tool, and the staple penetrates a sheet of paper and cuts both ends of the staple toward a staple bed on a base. When pressed and bent, the shape of the needle bending groove of the needle bending table becomes an arc shape on both left and right sides with the middle mountain height part,
Moreover, since the base is in the fixed state, both ends of the binding needle are bent in the arc shape as they are along the needle bending groove to be bound.

[0003] Therefore, the paper portion by the staple is
Since the document swells to about twice the thickness of the staple, when a large number of documents are created and superimposed, only that portion is particularly high.

Therefore, in order to solve this, at present,
(1) Jitsuhei 1-18296, (2) Jitsuhei 1-1829
No. 7, (3) Actual Kaihei 3-87584, (4) Actual Kaihei 4-2
Although devices such as No. 3270 have been known, these staplers have the following drawbacks in practical use.

[0005] The inventions (1) and (2) have a structure in which an actuator protrudes from a handle, so that a fingertip may be erroneously pinched when the handle is closed by inserting a staple. In addition, it was impossible to tackle the machine, and it was impossible to create a design freely. In addition, due to the complicated structure, the number of parts was large, the number of assembly steps was large, and the manufacturing cost was high.

In the invention of (3), since the operation pin engages with the inclined edge and descends along the inclined edge, the operation is not performed smoothly due to frictional resistance between the two. In addition, since the regulating piece and the cam member are connected to each other, the staple base and the paper receiving frame are not released, so that it is difficult to remove wasteful staples in the event of a staple jam. In addition, a stapler could not be used instead of a thumbtack or an adhesive, and the use of springs in two vertical and horizontal directions increased the manufacturing cost.

In the invention of the above (4), since the driving piece is pushed down by the bending wall in relation to the bending wall surrounding the upper part of the driving piece, the force in the diagonal direction is converted to the lateral direction. As a result, the push-down action cannot be performed smoothly.Because the driving piece and the regulating piece are connected by pins, the needle housing frame and the base frame cannot be opened, and the unnecessary needle is removed when the needle is jammed. Since it is difficult and the wall cannot be tacked, a stapler cannot be used instead of a pushpin or an adhesive. Moreover, since each spring is used in two vertical and horizontal directions, the manufacturing cost is low. Not only is it expensive, but the quality of the spring is not always uniform, so if the vertical spring attached to the needle receiving piece is too strong, the binding needle will not bend into a horizontal shape, but will have a normal arc shape. You will bend.

In order to eliminate the disadvantages of the conventional stapler, the same applicant has already filed an application according to Japanese Patent Application No. 6-65394. However, a disadvantage of the present invention is that the assembly process is time consuming and costly due to the relatively large number of parts.

[0009]

SUMMARY OF THE INVENTION An object of the present invention is to provide a stapler which eliminates the above-mentioned disadvantages of the prior application and has a more rational structure.

[0010]

According to the present invention, a paper receiving table is installed in a base body with its rear end pivotally mounted, and a needle bending table is provided on the front side of the base body at the bottom thereof. A machine is inserted and inserted into an opening provided on the front side of the paper receiving table, and both side lower cutouts of the opening are engaged with and separated from both side steps of the needle bending table,
A slider is installed inside the paper receiving table, and the lower surface of the front part of the slider is brought into contact with and separated from the upper surface of the mounting table provided on the front side of the base body, and the pushing body installed inside the front side of the handle body. The left and right rear ends of the slider contact the front side of the support plate provided on both the left and right sides of the rear end of the slider, and the front end of the spring plate provided at the rear end of the slider is placed inside both frame plates of the paper tray. And a bullet is interposed between the bottom surface of the needle body arranged on the upper side of the slider and the bottom surface of the base body.

[0011]

All of the components constituting the present instrument are shown in exploded views in FIGS. 1 and 12, which are two embodiments. The assembled overall view is shown in FIGS. 2 to 1 for the first embodiment.
It is shown at 0 together with the operating state.

In the open state of the handle body shown in FIG. 2, the pressing portion at the rear end of the pressing body abuts on the upper surface of the central portion of the cover body on the upper surface of the needle accommodating box. The lower end engages with the recess at the upper end of the front wall of the needle housing box, and the tip stopper slides up and down in the long hole of the needle cutting tool. The elastic machine constantly presses the upper surface of the front side portion of the cover body by elastically biasing between the cover body and the support portion of the push body loosely fitted in the central groove of the protrusion of the handle body.

In the open state of the handle body, the ammunition interposed between the rear bottom surface of the base body and the rear bottom surface of the needle housing is in an extended state, and The ammunition interposed between the front bottom surface and the front bottom surface of the paper tray is also in an extended state.

In the initial pressing state of the handle to the paper bundle in FIG. 3, the needle housing is moved to the lower paper receiving tray by the pressing of the pusher and the elastic body inside the handle to the cover. Since it is close and keeps a horizontal position, the ammunition between the base body and the rear side of the needle housing box is pressed and contracts slightly. Although the ammunition interposed between the base body and the needle bending table is still in an extended state, the tip of the needle cutting tool is moved from the inside of the front wall of the needle housing box to the first position in the needle housing box. Cut off the staple and start piercing the paper bundle. (See Figure 6)

In the state in which the handle body of FIG. 4 is further depressed and moved down, after the staples whose tips have been cut off completely penetrate the paper bundle, the staples are inserted into the bending grooves on the upper surface of the needle bending table. At the same time as pressing the needle turntable, the pressing portion of the pressing body moves on the upper surface of the cover body with the supporting portion as a fulcrum with the downward movement of the handle, and the outer edges of the left and right frame plates of the pressing body are the supporting plates of the slider. The slider comes into contact with the front part of the base and pushes it down, the contact part of the slider on the mounting base of the base body also moves, and it is in a state just before being released from the mounting base, and the center of the rear side of the slider The spring plate of the part contracts, and the internal bending machine contracts due to the needle bending table, so that the needle bending table comes into contact with the bottom portion of the base body. (See Fig. 7)

In a state where pressure is applied to the handle body in FIG. 5, when the staple is completely ejected from the staple housing box, the contact portion of the slider is separated from the mounting table of the base body, and the paper bundle is moved. Is moved downward, and the cutout at the lower end of the passage is engaged with the left and right steps of the needle bending table. Then, the tip of the needle cutting tool moves downward while pressing the binding needle, and the needle bending table is completely surrounded by the opening of the outer paper receiving table, and at the same time, is fixed while receiving the bullet ejection from below. Therefore, the staple is bent in a horizontal state. (See Figure 8)

When the base body, the paper tray and the slider side of FIG. 11 and the handle body, the pushing body, the cover body and the needle housing box side are opened with the support shaft as a fulcrum, the upper surface of the handle body is the same. Hit as a tucker in the direction of the arrow in the figure and hit the staple.

In the case of the second embodiment shown in FIG. 12 and subsequent figures, in the open state of the handle body in FIG. 13, the rear end pressing portion of the push body comes into contact with the upper surface of the front side of the cover body on the upper surface of the needle housing. The tip stopper engages with the lowermost portion of the long hole of the needle cutting tool and is engaged with the concave portion at the upper end of the front wall of the needle accommodating box, and the tip stopper slides vertically in the long hole of the needle cutting tool. The elastic plate integrally formed with the needle cutting tool elastically urges between the handle body and the cover body to constantly press the upper surface of the central portion of the cover body.

Also in the second embodiment, the entire structure is opened in two and the tacker can be hit. (See FIG. 14)

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS First, a first embodiment will be described.

Reference numeral 1 denotes a base as a whole base, which comprises a front wall 2 and left and right side walls 3 and 3. Higher wall portions 4 and 4 are further formed on the rear side portions of the left and right side walls 3 and 3.

Reference numerals 5 and 5 denote vertical grooves formed on the inner side of the front side wall 2 of the base 1, and the base 1 is spaced from the vertical grooves.
The protrusion 6 is protruded upward, and the mounting table 7 is protruded from the protrusion 6 on the base body 1 at an interval.

Reference numeral 8 denotes a needle turntable which is provided at the position of the base body 1 having the protrusions 6 so as to straddle the protrusions 6. Intervene.
Steps 11 and 11 are formed on both left and right sides of the needle bending table 8, and bending grooves 12 and 12 are formed on the left and right sides on the upper surface thereof.
To form.

Reference numeral 13 is a paper receiving stand having a through hole 14 into which the needle bending table 8 is inserted and provided on the front side thereof, and projections 15 and 15 are provided on the front end surface of the paper receiving stand. Notches 16, 16 are provided at lower left and right ends of the passage 14, and the notches engage and disengage with the steps 11, 11 of the needle bending stand 8. In addition, the protrusions 15, 15 are engaged with the vertical grooves 5, 5 of the base body front side wall 2, and guide the vertical movement of the paper tray 13.

Reference numerals 17 and 17 denote frame plates on both right and left sides of the paper tray 13. The upper and lower frame portions of the frame plates 13 form a step in the middle, and the rear side of the frame plate forms a step inward. ing. A slider 23, which will be described later, fits in a space 18 between the frame plates 17, 17.

Reference numeral 19 denotes both frame plates 17 on the rear side of the paper tray 13;
The projections 20 are provided at right and left corners of the partition. A front end 26 ′ of a spring plate 26 provided at the center of the rear end of the slider 23 described below is engaged with the projections 20, 20.

Reference numerals 21 and 21 denote both frame plates 1 of the paper tray 13.
Projection shafts provided at outer end portions of the base members 1 and 17 are pivotally connected to concave grooves 22 provided at ends of both side walls 3 and 3 of the base body 1.

Reference numeral 23 denotes a slider fitted in the space 18 of the paper receiving tray 13. A front part 24 provided above the front end of the slider is a front part 1 of the space 18 of the paper receiving tray 13.
8 '. 23 'is the front part 24 of the slider 23
Abutment portion formed on the front surface of
On the upper surface or abut on the back surface.

Reference numerals 25 and 25 denote support plates which are provided upright on both left and right sides of the rear end of the slider 23, and a spring plate 26 is integrally provided between the support plates from the rear end of the slider. The leading end 26 ′ of the strip 26 is connected to the partition 19 of the paper tray 13.
The inner projections 20 and 20 are locked.

Reference numeral 27 denotes a needle housing body having a needle outlet 28 on the bottom surface of the front end, and a recess 27 'is formed at the upper end of the front side wall portion of the needle housing body. A needle pusher 29 and an extruder 30 are provided inside the needle housing 27.

Reference numerals 31, 31 denote shaft holes provided on both left and right sides of the rear end of the needle housing box 27. The rear ends of the high side walls 4, 4 of the base 1 coincide with the shaft holes. Shaft holes 32, 32 are provided at the left and right rear ends of the handle body 43, which will be described later.
The support shaft 34 is inserted and pivoted between 2, 47, 47.

35, 35 are shaft holes 3 of the needle housing 27;
The recesses are provided on the front side of the bases 1 and 31, and the projections 50 and 50 provided on the high wall portions 4 and 4 of the base body 1 engage with the recesses.

Reference numeral 36 denotes a cover body having left and right side walls 36 'and 36' arranged on the upper surface of the needle housing body 27, and a stopper 37 is provided at the tip of this cover body. The stopper 37 of the cover body 36 is a needle cutting tool 44 described later.
It is adapted to be inserted into a long hole 46 provided in the upper part and to be operated up and down, and to be locked in the front concave part 27 'of the needle housing body 27.

Reference numeral 38 denotes an engagement groove provided on the left and right sides of the rear end of the cover 36. The support shaft 34 is engaged with the groove.

Reference numeral 39 denotes a pushing body having a rear pushing portion 39 'abutting on the upper surface of the cover body 36. This pushing body integrally forms frame plates 40, 40 on both right and left sides.

Reference numeral 41 denotes a supporting portion provided at the front end of the pressing body 39. The supporting portion is a projection 49 of the handle body 43 described later.
Between the projection 49 and the upper surface of the front side of the cover body 36, the upper surface of the elastic machine 42 abuts against the lower surface of the support portion 41, and is provided on the pressing body 39. Passage 4
1 'to support it.

A handle 43 is provided above the pushing body 39. A needle cutting tool 4 is provided at the front end of the handle.
4 is provided with a mounting part 45 for fixing.

The needle cutting tool 44 is provided with a long hole 46,
The stopper 37 of the cover body 36 is inserted into this elongated hole so that it can be vertically moved.

A shaft hole 47 through which the support shaft 34 is inserted is provided at the rear end of the handle body 43.

Reference numeral 48 denotes a bullet inserted between the bottom surface of the base 1 and the bottom surface of the needle housing 27.

Reference numeral 49 denotes a projection provided on the inside of the front side of the handle body. A center groove 49 'is provided in the middle of the projection so that the front end supporting portion of the pushing body is loosely fitted in the center groove. Become.

Next, a second embodiment will be described.

The second embodiment is different from the first embodiment in that the base 1,
Needle bending table 8, paper tray 13, slider 23, needle housing 2
7, the cover body 36 and the pushing body 51 have the same structure, and only the structures of the handle body, the pushing body and the needle cutting tool are changed.

Reference numeral 51 denotes a pushing body which abuts a rear pushing portion 51 'on the upper surface of the front side of the cover body 36. A hook-like projection 52 having a concave groove formed around the pushing body is provided at the tip of the pushing body. The projection 52 is engaged with the long hole 59 of the needle cutting tool 55 described later. An opening 53 is provided on the front side surface of the pressing body 51.

The opening 53 coincides with the opening 57 of the striking plate 56 of the needle cutting tool 55 to be described later.
Is located at a position where it is inserted during operation.

Numeral 54 designates a handle body. On the inner front side of the handle body, a striking plate 56 provided with a needle cutting tool 55 at the tip end, and a through-hole 57 provided at a part of the upper surface thereof are connected to the handle body 54. To the inner projection 58 of the first member.

The needle cutting tool 55 is provided with a long hole 59,
The protrusion 52 of the pushing body 51 is loosely attached in the elongated hole.

Reference numeral a indicates a paper bundle to be bound.

[0049]

According to the stapler of the present invention, the total number of parts can be reduced as compared with the conventional stapler, so that the assembling is not required, and the cost can be reduced. The binding needle can be stapled reliably in a clinch shape.

Further, the whole is opened in two parts, and thereby the stapling can be performed by using the tucker, so that the whole structure is rational.

[Brief description of drawings]

FIG. 1 is an overall exploded perspective view of a first embodiment.

FIG. 2 is a side sectional view of the assembled whole of the first embodiment.

FIG. 3 is a side sectional view of the entire operation.

FIG. 4 is a side sectional view of the entire operation.

FIG. 5 is a side sectional view of the entire operation.

6 is a sectional view taken along the line AA of FIG.

FIG. 7 is a sectional view taken along line BB of FIG. 4;

FIG. 8 is a sectional view taken along line CC of FIG.

9 is a sectional view taken along line DD of FIG. 3;

10 is a sectional view taken along line EE of FIG.

FIG. 11 is a state diagram when the tucker is used in the first embodiment.

FIG. 12 is an exploded perspective view of the entire second embodiment.

FIG. 13 is a side sectional view of the assembled whole of the second embodiment.

FIG. 14 is a state diagram when a tucker is used in the second embodiment.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 base body 5, 5 vertical groove 6 protrusion 7 mounting table 8 needle bending table 9 inner concave portion 10 bullet machine 11, 11 step portion 12, 12 bending groove 13 paper receiving stand 14 communication port 15, 15 protrusion 16, 16 notch Part 17, 17 Frame plate 18 Space part 19 Separator plate 21, 21 Protruding shaft 22, 22, Depressed groove 23 Slider 23 'Abutment part 24 Front part 25, 25 Support plate 26 Spring plate 27 Needle accommodating box 36 Cover body 39 Push Body 40, 40 Frame plate 41 Supporting part 42 Ammunition 43 Handle body 44 Needle cutting tool 48 Ammunition 49 Projecting part 49 'Projecting part center groove 51 Pushing body 52 Protrusion 55 Needle cutting tool 56 Spring plate 54 Handle body

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[Procedure amendment]

[Submission date] March 22, 1995

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Name of item to be corrected] Fig. 4

[Correction method] Change

[Correction content]

[Figure 4]

Claims (3)

[Claims] 1. A paper receiving stand is installed in a base body with its rear end pivotally attached thereto, and a needle bending stand is interposed at the front side of the base body on a bottom surface thereof through an elastic machine. Fitted into the opening provided on the front side of the receiving stand, the lower end cutouts on both sides of the opening are engaged with and separated from both side steps of the needle bending table, and a slider is installed inside the paper receiving stand. Then, the lower surface of the front part of the slider is brought into contact with and separated from the upper surface of the mounting table provided on the front side of the base body, and the left and right rear ends of the push body installed inside the front side of the handle body are rearward of the slider. Abutting against the front sides of the supporting plates provided on the right and left sides of the end, and locking the leading ends of the strips provided at the rear end of the slider inside the two frame plates of the paper receiving tray; A stapler comprising an ammunition interposed between a bottom portion of the needle housing and a bottom portion of the base body arranged in the stapler. 2. The stapler according to claim 1, wherein a front end support portion of the push body is loosely attached to a part of a projection provided inside the upper surface of the handle body, and a rear end push portion of the push body is used as a needle. The needle housing box abuts against the upper surface of the cover body of the housing body, and the upper surface portion of the ammunition interposed between the cover body and the handle body abuts the lower surface of the front end support portion of the push body. A stapler comprising a needle cutting tool provided at a needle outlet of the handle body fixed inside a front end of the handle body. 3. The stapler according to claim 1, wherein a splicing plate having a needle cutting tool at a front end portion is fixed to a projection provided inside the upper surface of the handle body, and a slot provided in the needle cutting tool. The hook-shaped protrusion provided at the front end of the push body is loosely attached, the rear end pressing portion of the push body abuts on the upper surface of the cover body of the needle housing box, and the rear end of the spring plate is removed. A stapler in contact with the upper surface of the cover.