JPH07246573A - Stapler - Google Patents

Abstract

PURPOSE:To improve the serviceability by composing the system to move a slider to the rear side linking to the depressing of a handle, and to remove the front end of the slider from a base board frame, while providing an expansion mechanism obliquely between the inside at the front end of the slider and the bottom surface of the base board frame, so as to push up the front end of the slider in the oblique direction constantly. CONSTITUTION:In the closed condition of a handle 46, an extension flexible mechanism 49 is contracted, and a pressing shaft 45 moves rearward by the inclined groove 51 of the handle 46. As a result, the pressing member of a pressing body 41 knocks down the pressure receiver 22 of a slider 21 to the rear side On the other hand, the front end of the slider 21 is being pushed up by receiving the pressing force in the oblique direction constantly by an extension mechanism 11. When the handle 46 is depressed further, the pressing shaft 45 moves rearward further, and the slider 21 also moves rearward, the front end of the slider 21 is removed from a base board frame 1, the base board frame 1 is pushed up against the force of the expansion mechanism 11, and it is abutted against and stopped at the lower surface at the front end of a paper receiving board 23. At the same time, filing staples in a staple housing box 32 are cut off, and the papers are filed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an office stapler.

[0002]

2. Description of the Related Art Conventionally, the stapler for office is
When the cover body is pressed and the binding needle is cut off by the cutting tool with the cutting tool, and the binding needle penetrates the paper and bends both ends toward the needle bending table on the base, the needle bending of the needle bending table Since the groove shape is arcuate on both left and right sides with the intermediate peak height and the base is in a fixed state, both ends of the binding needle are bent along the needle bending groove as they are and bound. Will be crowded.

Therefore, the paper portion by the staple is
As it grows to a thickness about twice that of the binding needle, when a large number of documents were created and overlapped, only that part was particularly high.

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

In the inventions of (1) and (2), since the actuator is projecting from the handle, there is a risk of accidentally pinching the fingertip when inserting the binding needle and closing the handle. It was impossible to tackle to, it was impossible to freely create designs, and because the structure was complicated, the number of parts was large, the number of assembly processes was large, and the manufacturing cost was high.

In the invention of the above (3), since the operation pin engages with the inclined edge and descends along the inclined edge, the action is not smoothly performed due to frictional resistance between the two. Also, since the regulation piece and the cam member are connected to each other, the needle base and the paper receiving frame are not released, it is difficult to remove the waste needle when the needle is jammed, and the wall surface cannot be tucked. However, the stapler could not be used in place of the thumbtack or the adhesive, and the springs were used in two directions, so that the manufacturing cost was high.

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, and since the drive piece and the regulating piece are connected by a pin, 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 be bent.

[0008]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a highly practical stapler which eliminates the above-mentioned drawbacks.

[0009]

SUMMARY OF THE INVENTION According to the present invention, a stretch ammunition is pressed obliquely between the bottom surface of a base frame and the inside of the front end of a slider so that the stretch ammunition is slanted to the inside of both left and right sides of the handle. An inclined groove is formed, a pressing body is covered by a cover body arranged on the upper surface of the needle housing body, and both ends of a pressing shaft provided on the pressing body are suspended in the inclined groove of the handle. .

[0010]

All of the members constituting this device are shown in the exploded view of FIG. 1, but the overall view of the assembly thereof is shown in FIGS. 2 to 4. 2 to 4 explain the operating state of this device.

In the open state of the handle shown in FIG. 2, the pressing portion of the pressing body to be covered near the central portion of the cover body on the upper surface of the needle accommodating body comes into contact with the inside of the pressing receiving portion standing vertically at the rear end of the slider. Further, a pressing shaft that traverses the pressing body engages with inclined grooves on both left and right inner sides of the handle.

Further, in this state, the extension bullet inserted between the base and the needle housing is in the extension state, and the extension bullet inserted between the handle and the cover is also in the extension state. . At this time, the front end of the slider is in contact with the receiving piece of the base frame.

In the closed state of the handle shown in FIG. 3, the extension ammunition immediately below the handle contracts, and the pressing shaft moves rearward due to the inclined groove of the handle, so that the pressing portion of the pushing body moves slightly backward of the pressing receiving surface of the slider. You will come to defeat. The inner part of the front end of the slider is always pushed up diagonally by a downward stretcher.

When the slider is pushed up, it means that the outer paper tray containing the slider and the base integrally connected to the paper tray are lifted at the same time. This allows the stapling needle, which is still above the through hole in the paper cradle, to be about to pierce the stack of sheets, providing a fold receiving position that would result from the lowering of the cutting tool. At this time, the front end of the slider is in a state of slightly hanging on the upper surface of the receiving piece of the base frame.

Then, when the handle is further depressed,
As shown in Fig. 4, since the pressing shaft moves further rearward due to the inclined groove of the handle, the pressing portion of the pushing body moves rearward of the pressing receiving portion of the slider, and the front end portion of the slider comes off from the receiving piece of the base frame. , The base frame is pushed up against the stretch ammunition provided in the oblique direction, and the upper surface inside the front end of the base frame comes into contact with and stops at the lower surface of the front end of the paper tray.

At the same time, the needle cutting tool cuts out the last one staple of the staple bundle of the needle housing body, and the leg portion of the staple penetrates the sheet bundle of the paper tray and inserts it into the through hole. The needle is bent inward from the left and right in contact with the needle bending groove on the upper surface of the lower needle bending table fitted in the through hole. (See Figure 10)

Thus, the leg portion of the binding staple is bent horizontally on the back side of the sheet bundle. As shown in FIGS. 8 and 9, the bending to the horizontal state is such that, as shown in FIGS. 8 and 9, the tip of the leg portion of the binding needle that vertically descends toward the needle bending groove approaches the needle bending groove at the same time. Both sides of the guide tray of the paper tray descend,
The tip of the leg portion of the binding needle contacts the arc surfaces of the left and right ends of the needle bending groove to induce bending inward, and is pressed by the bite to bend horizontally in the needle bending groove surface as it is. Guide of pedestal The lower surface of the pedestal comes into contact with the bottom surface of the front end of the base frame and stops.

[0018]

[Embodiment] 1 is a base frame which is the basis of the whole, and this base frame is composed of left and right side frames 2, 2, front side frame 3, inner hook part 4 of the front side frame, front end bottom surface part, rear side frame 6 Consists of.

Reference numeral 7 denotes a receiving piece projecting from the bottom surface of the front end of the base frame 1, and the height of the receiving piece is the same as that of the rear frame 6.

Reference numeral 8 denotes a needle bending table having a needle bending groove 8'on its upper surface which is erected on the front end bottom surface of the front portion of the receiving piece, and a square hole 9 is provided in the lower side portion of the needle bending table. A hook 5 protruding upward from the bottom surface of the front end of the base frame 1 is engaged with the hole. The upper and lower ends of the needle curved groove 8'are arcuate at the left and right end portions thereof in order to bring the binding needle a inward, and the intermediate portions of the both end portions are horizontal surfaces. However, even if the shape of the upper surface of the needle curved groove 8'is conventional, the leg portion of the binding needle a is bent into a similar horizontal shape as a result.

Numerals 10 and 10 are fulcrum projections provided so as to face the inner upper end of the rear end of the base frame 1, and 11 is an extension bullet installed in an oblique direction.
It abuts on the inner side of the front end of and is constantly pressed.

Reference numeral 12 is a base having side walls 13 and 13 on the left and right, and high side walls 1 are provided on both left and right sides of the rear side of the base.
3'and 13 'are formed, and fulcrum shaft holes 14 and 14, fulcrum holes 15 and 15, and locking square holes 16 and 16 are provided on the both side walls.

A support shaft 31 is provided between the support shaft holes 14, 14.
Is suspended. The support shaft 31 includes a needle housing body 32, which will be described later.
Fulcrum shaft holes 34, 34, notches 40, 4 of the cover body 37
0 and the mounting recessed holes 52, 52 of the handle 45 are fitted or engaged with each other to form a fulcrum.

Reference numeral 17 denotes a notched recess provided at the front end of the base 12, and the locking step portion 1 is provided at both left and right ends of the notched recess.
8 and 18 are provided. The upper end of the extension bullet 11 is inserted into the cutout recess 17.

Reference numeral 19 is a protrusion provided on the rear side of the base 12, and an extension ammunition machine 20 is vertically installed on the protrusion.
The needle accommodating body 32 described later is pressed against the rear bottom surface portion.

Reference numeral 21 is a downward slider.
The pressure receiving portion 2 is provided on both left and right sides of the rear end portion of the slider.
2 and 22 are set up. The slider 21 is fitted between the base 12 and a paper receiving tray 23 described later. The front end portion 21 ′ of the slider 21 comes into contact with and separates from the receiving piece 7 of the base frame 1.

Reference numeral 23 is a paper receiving tray, and a guide receiving tray 24 is provided at the front end portion of the paper receiving tray, and a through hole 25 is vertically formed in the guide receiving tray.
The needle bending base 8 of the base frame 1 is fitted into this through hole. In a normal state (when not in use) when the needle bending table 8 is fitted in the through hole 25, the upper end portion of the through hole 25 forms an opening portion for inserting and guiding the leg portion of the binding needle. .

Reference numeral 26 is a protrusion provided at the center of the lower end of the front side portion of the guide receiving base 24 of the paper receiving base 23, and the protrusion is hooked inside the hook portion 4 of the front side frame 3 of the base frame 1. Will be like.

27 and 27 are the guide receiving bases 2 of the paper receiving base 23.
4 is a front locking projection provided at a rear corner of the base 4, and the locking step portions 18, 18 of the base 12 are locked to the front locking projection.

Reference numerals 28 and 28 denote mounting portions provided on the left and right side portions of the rear side portion of the paper tray 23, and rear locking projections 29 and 29 are provided on the left and right sides of the rear end portion of the mounting portion. After this, the locking projections 29, 29 are adapted to engage with the locking square holes 16, 16 of the base 12.

The end face portion of the concave portion sandwiched between the both mounting portions 28, 28 serves as a stop portion 30. Both mounting portions 28, 2
The outer surface of 8 is the pressure receiving portion 22 of the slider 21,
It is located inside 22.

Reference numeral 32 denotes a needle accommodating body having a needle outlet 33 on the bottom surface of the front end, and fulcrum shaft holes 34, 34 are provided at the rear end portions of both left and right sides of this body, and the supporting shaft 31 is fitted therein. .

Reference numeral 35 denotes a needle pushing body installed inside the needle housing body 32, and a shrinkage ammunition 36 is attached to the needle pushing body.

Reference numeral 37 is a cover body having left and right side walls 38, 38 disposed on the upper surface of the needle housing body 32, and guide holes 39, 3 are provided at substantially central corners of the left and right side portions of the cover body.
9 is provided.

40, 40 are both side walls 3 of the cover body 37.
The left and right cutouts are engaged with the support shaft 31 by the cutouts provided at the rear end portions of the reference numerals 8 and 38.

Reference numeral 41 denotes a pushing body which covers the central portion of the cover body 37, and both left and right front end portions of the front side wall 42 of the pushing body engage with the guide holes 39, 39 of the cover body 37. Through holes 44, 4 provided in the left and right side walls 43, 43 of the pushing body 41
The pressing shaft 45 is installed between the four shafts, and the left and right ends of the pressing shaft 45 are suspended between the inclined grooves 51, 51 provided inside the left and right side parts of the handle 46, which will be described later.

The pushing body 41 has left and right side walls 43,
Instead of arranging the pressing shaft 45 between the through holes 44 of the 43 and projecting it outward, the pressing shafts 45 and 45 are integrally projecting outward with the left and right side walls 43, 43, respectively. (See FIG. 7).
It may be configured to be suspended on 51.

The left and right rear end portions of the pushing body 41 are pressing portions 5
3, 53, the pressing portions are always in contact with the pressing receiving portions 22, 22 of the slider 21, and when the handle 46 is pressed, the pressing receiving portions 22, 22 are pressed to move the slider 21 up and down. Become.

Reference numeral 46 denotes a handle, and an upper end of a needle cutting tool 47 is fixed to a front end of the handle, and a projection 38 provided at the center of the front end of the cover body 37 is provided in a window hole of the tool.
Engage.

Reference numeral 49 denotes an extension bullet which is interposed between the upper surface of the cover body 37 and the inner surface of the handle 46. The extension bullet machine keeps the handle 46 and the cover body 37 always in a tensioned state.

Reference numerals 50 and 50 denote projections provided obliquely on the inner sides of the left and right sides of the handle 46. The projections are provided with inclined grooves 51 and 51.

Reference numerals 52 and 52 denote mounting recesses formed inside the left and right rear ends of the handle 46, and both ends of the support shaft 31 are suspended between the recesses.

[0043]

First, since the pushing body is moved via the pushing shaft by utilizing the inner inclined groove of the handle, the handle can be smoothly operated.

Secondly, since the pushing body and the slider are pressed together without being connected, the needle housing and its cover body can be completely opened, and this dead needle can be easily removed when the needle is jammed. Can be removed.

Thirdly, since the handle portion can be fully opened, tucking can be performed.

Fourthly, by mounting the stretch ammunition diagonally inside the bottom of the base frame and inside the front end of the slider,
Since the structure is formed by elastically urging the vertical direction of the base part and the front-back direction of the slider with individual ammunition, it is possible to provide a low cost product as a whole.

[Brief description of drawings]

FIG. 1 is a perspective view showing an entire disassembled state.

FIG. 2 is an overall side sectional view before use

FIG. 3 is a side sectional view of the whole in use.

FIG. 4 is a side sectional view after use.

FIG. 5 is a perspective view of a main part

FIG. 6 is a partially cutaway side view of a main part.

FIG. 7 is a perspective view of another example of the main part.

FIG. 8 is a front cross-sectional view of the main part

FIG. 9 is a front sectional view when in use

FIG. 10 is a bending state diagram of a staple according to the present invention.

FIG. 11 is a bending state diagram of a conventional binding needle.

[Explanation of symbols]

 1 Base frame 3 Front side frame 4 Hook part 5 Hook 6 Rear side frame 7 Receiving piece 8 Needle bending stand 8'Needle bending groove 9 Square hole 10 Support point projection 11 Stretch ammunition 12 Base 13 'High side wall 20 Stretch ammunition 21 Slider 21 'Front end part 22 Press receiving part 23 Paper receiving part 24 Guide receiving part 25 Through hole 26 Protrusion 28 Mounting part 31 Support shaft 32 Needle accommodating body 37 Cover body 41 Pushing body 45 Pushing shaft 46 Handle 49 Stretching ammunition 51 Tilt Groove 53 Pressing part

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[Procedure amendment]

[Submission date] March 31, 1995

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] 0023

[Correction method] Change

[Correction content]

A support shaft 31 is provided between the support shaft holes 14, 14.
Is suspended. The support shaft 31 includes a needle housing body 32, which will be described later.
Fulcrum shaft holes 34, 34, notches 40, 4 of the cover body 37
0 and the mounting recessed holes 52, 52 of the handle 46 are fitted or engaged with each other to form a fulcrum.

Claims (1)

[Claims] 1. A needle accommodating device in which a stretch ammunition is pressed obliquely between the bottom surface of the base frame and the inside of the front end of the slider, and oblique grooves are formed diagonally in the inner parts of the left and right sides of the handle. A stapler in which a pushing body is covered with a cover body arranged on an upper surface of a body, and both ends of a pushing shaft provided on the pushing body are suspended in the inclined groove of the handle.