JP2671255B2 - stapler - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. 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,
In addition, since the base is in a fixed state, both ends of the staple are bent in an arc shape as they are along the needle bending groove and 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) Japanese Utility Model No. 3-87584, (4) Japanese Utility Model 4-2
Although a device such as 3270 is known, these staplers have the following practical disadvantages.

[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 bent wall in relation to the bent wall surrounding the upper part of the driving piece, the oblique force is converted to the lateral direction. The push-down function cannot be performed smoothly, and the drive piece and the control piece are connected by pins, so that the needle receiving frame and base frame cannot be opened. It was difficult to tackle the wall, and it was not possible to use a stapler instead of a thumbtack or adhesive. Furthermore, since each spring was used in two directions, the manufacturing cost was low. Not only is it expensive, but the quality of the spring is not always uniform.If the vertical spring is too strong to be attached to the needle holder, the staple does not bend into a horizontal shape but into a normal arc shape. You will bend.

In order to eliminate the drawbacks of the conventional stapler, the same applicant has already applied for the inventions of Japanese Patent Application No. 6-65394 and Japanese Patent Application No. 6-337019. However, a drawback of these inventions is that the number of parts is relatively large, so that it takes time and labor for assembling and the cost is high.

[0009]

SUMMARY OF THE INVENTION It is therefore an object of the present invention to eliminate the above drawbacks of the prior inventions and to provide a stapler having 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 end portions of the slider contact the front side portions of the support plates provided on the left and right side portions of the rear end of the slider, and the front end of the spring plate provided at the rear end portion of the slider is attached to the rear side plate of the paper tray. Part of a spring plate with a needle cutting bit at the tip is fixed to a proper position inside the handle body, and the pushing body is held in a square hole near the front end of this spring plate. The child is inserted and attached, the rear pressing portion of the rear end of the pressing body is brought into contact with the upper surface portion of the cover body of the needle housing body, and the tip end portion of the middle elastic strip projecting downward in the central portion of the elastic strip is It is formed by abutting on the upper surface of the push body.

[0011]

All of the components that make up this device are shown in the exploded view of FIG. An overall view of the assembled parts is shown in FIGS. 2 to 12 together with the operating state.

In FIG. 2, in the opened state of the handle body, the rear pressing portion of the upper rear end of the pressing body contacts the upper surface of the central portion of the cover body of the needle accommodating body, and the tip stopper of the cover body is the needle cutting bite. Of the needle-cutting tool is engaged with the lowest part of the elongated hole and is locked in the recess of the upper end of the front side wall of the needle housing body, and the needle cutting bit slides up and down.

The tip of the middle strip of the strip having the needle cutting bit provided at the tip is in contact with the upper surface of the pressing body to constantly press it. Further, the latching protrusion at the tip of the pushing body is inserted into the square hole of the spring plate.

In FIG. 3, when the handle body is first pushed down on the bundle of sheets, the needle accommodating body approaches the lower paper tray and maintains a horizontal position.

At this time, the ammunition machine interposed between the base and the needle bending table is still in the extended state, but the tip of the needle cutting tool is inserted from the inside of the front side wall of the needle accommodating body into the needle accommodating body. Cut off the first binding needle of the body and start piercing the stack of paper. (See Figure 6)

In FIG. 4, when the handle body is further pushed down, the binding needle cut off at the tip of the needle cutting bite pierces the sheet bundle completely, and then the binding needle bends on the upper surface of the needle bending table. At the same time as pressing the needle bending table in contact with, the pressing part of the pushing body moves the upper surface of the cover body around the latching protrusion as the fulcrum of pushing down the handle body, and the rear end parts of the left and right side plates of the pushing body. Comes into contact with the front surface of the slider support plate and pushes it down, and the contact portion of the slider mounted on the mounting base of the base also moves, so that it is about to be released from the mounting base. In addition, the spring plate in the center of the rear side of the slider contracts, and the bullet in the inner recess contracts when the needle bending table is pressed down, so that the bottom of the needle bending table is in contact with the bottom surface of the base body. become. (See Fig. 7)

In FIG. 5, when pressure is applied to the handle body, when the binding needle is completely ejected from the needle accommodating body, the contact portion of the slider separates from the mounting base of the base body, and the paper The paper pedestal on which the stack is placed moves downward, and the cutouts at the lower end of the stack are engaged and aligned with the left and right steps of the needle bending table, and the staple is bent horizontally by pressing the needle cutting bit. Come to do. (See Fig. 8)

FIG. 12 shows a state in which the base body, the paper receiving stand and the slider side and the handle body, the pushing body, the cover body and the needle accommodating body side are opened with the support shaft as a fulcrum. Strike the upper surface of the body in the direction of the arrow in the figure as a tucker, and use it to strike the binding needle.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 1 is a base body which is the basis of the whole, and this base body comprises a front side wall 2 and left and right side walls 3, 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 are vertical grooves formed on the inner side portion of the front side wall 2 of the base body 1, and the base body 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 bending table installed at the position of the base body 1 having the projection 6 so as to straddle the projection 6, and an inner machine recess 9 of the needle bending table has an ammunition 10 between the projection 6 and the projection 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. Protrusions 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 the left and right sides of the paper receiving tray 13. The upper surfaces of both frame plates form step portions in the middle and rear side portions form step portions 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 is a slider fitted in the space 18 of the paper tray 13, and a front stage portion 24 provided on the upper front end of the slider is a front side portion 1 of the space 18 of the paper tray 13.
8 '. 23 'is the front part 24 of the slider 23
Abutment portion formed on the front surface of
It is placed on the upper surface of the device or abutted on the back surface.

Numerals 25 and 25 are support plates standing 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 is a needle accommodating body having a needle outlet 28 in the bottom surface of the front end, and a concave portion 27 'is formed at the upper end of the front side wall portion of the needle accommodating body. A needle pusher 29 and an extruder 30 are provided inside the needle housing 27.

Numerals 31 and 31 are axial holes provided on both left and right sides of the rear end portion of the needle accommodating body 27, and the rear end portions of the high side walls 4, 4 of the base 1 are aligned with the axial holes. Shaft holes 32, 32, and shaft holes 53, 53 are provided at the left and right rear end portions of a handle body 48, which will be described later, and these three shaft holes 31, 31, 32, 3 are provided.
The support shaft 34 is inserted and pivotally attached between the 2, 53, and 53.

Reference numerals 35 and 35 denote shaft holes 3 of the needle housing body 27.
It is a concave hole provided on the front side of 1, 31, and the protrusions 54, 54 provided on the high wall portions 4, 4 of the base 1 are engaged with the concave hole.

Reference numeral 36 is a cover body having left and right side walls 36 ', 36' arranged inside 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 inserted into a long hole 43 provided in a needle cutting bite 44 described later to operate up and down and to be locked in a front concave portion 27 'of the needle housing body 27.

Reference numeral 38 is an engaging groove formed on both left and right sides of the rear end of the cover body 36, and the support shaft 34 is engaged with the groove.

Numeral 39 is a pushing body which abuts a rear pushing portion 39 'on the substantially central portion of the upper surface of the cover body 36. A latching protrusion 40 is provided at the tip of this pushing body, and this protrusion 40 will be described later. It inserts in the square hole 52 of the spring board 42. Side plates 41, 41 are formed on the left and right sides of the pusher 39, and the lower ends of the left and right side plates are configured so as not to project downward from the left and right sides of the needle accommodating body 27 during operation.

Reference numeral 42 designates a ridged plate having a needle cutting tool 44 having a long hole 43 at the tip thereof. A middle ridged piece 45 cut out downward is provided at the center of the ridged plate, and the tip of this ridged piece. The portion comes into contact with the upper surface of the pushing body 39 and presses it.

Reference numerals 46 and 46 ′ are rear ridges formed by branching at the rear end of the ridge plate 42, and the front end of one rear ridge 46 is on the upper surface of the high wall portion 4 of the base 1. The other end of the rear strip 46 'comes into contact with the upper surface of the cover body 36.

Reference numeral 47 is a notch provided at one corner of the cover body 36, and this notch is provided so as not to obstruct the lowering of the one rear strip 46 when the handle 48 moves downward. is there.

Reference numeral 48 designates a handle body, and a protrusion 50 which fits into a mounting port 49 provided in the spring plate 42 is provided at an appropriate position inside the handle body. Engaging portions 51, 5 for fixing the front side portion of the spring plate 42 to the inner left and right side portions of the handle body.
1 is provided.

Reference numeral a indicates a binding needle, and b indicates a sheet bundle.

[0039]

The structure of the stapler according to the present invention is as follows.
In a stapler that bends and binds staples in a horizontal state, the total number of parts is much smaller than that of conventional products, and the assembly can be done easily with relatively little effort. The manufacturing cost can be reduced as a whole. Moreover, it is possible to provide a flat clinch that can sufficiently perform its function without affecting the function of the stapler as a stapler.

Further, since the whole body can be opened into the base body portion and the handle body portion and can be divided into two parts, this can be used as a tucker to easily perform point-stitching.

[Brief description of the drawings]

FIG. 1 is an overall exploded perspective view.

FIG. 2 is a side sectional view of the entire assembly.

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.

FIG. 6 is a sectional view taken along line AA of FIG. 3;

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. 5;

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

FIG. 10 is a sectional view taken along line EE of FIG. 3;

11 is a sectional view taken along line FF of FIG.

FIG. 12 is a view of the entire opening state when using the tucker.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base 5,5 Vertical groove 6 Protrusion 7 Mounting table 8 Needle bending table 9 Inner recessed part 10 Bullet machine 11,11 Step part 12,12 Bending groove 13 Paper receiving base 14 Through hole 15,15 Sprout 16,16 Notch Part 17,17 Frame plate 18 Space part 19 Separator plate 20,20 Projection 21,21 Projection shaft 22,22 Recessed groove 23 Slider 23 'Contact part 24 Front stage part 25,25 Support plate 26 Spring plate 27 Needle accommodating body 36 Cover body 39 Push body 40 Latching protrusion 42 Stroke plate 45 Medium-strength strip 46,46 'Rear-strip strip 48 Handle body

Claims (1)

(57) [Claims] 1. A paper pedestal is installed in a base body with its rear end pivotally mounted, and a needle bending table is provided at the bottom of the front side of the base body with an ammunition to insert the paper. It is fitted into the through hole provided on the front side of the tray so that the lower end notches on both sides of the through hole are engaged with and separated from both side steps of the needle bending table, and sliders are installed inside the paper tray. The lower surface of the front part of the slider so that it comes in contact with and separates from the upper surface of the platform provided on the front side of the base body, and the left and right rear ends of the pusher installed inside the front side of the handle body are attached to the rear side of the slider. The inside of the handle body is contacted with the front side of the support plate provided on both left and right ends of the slider, and the tip of the elastic plate provided at the rear end of the slider is locked to the protrusion of the rear partition plate of the paper tray. Secure a part of the spring plate with a needle cutting tool at the tip in place, and insert the latching protrusion of the pusher into the square hole provided near the front end of this spring plate. Abutting the rear pressing portion of the rear end of the pressing body to the upper surface portion of the cover body of the needle housing body, and the front end portion of the middle elastic strip projecting downward in the central portion of the elastic plate to the pressing body of the pressing body. A stapler characterized by being brought into contact with an upper surface portion.