JP3460485B2 - Tightening means connector - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a staple band of a staple loaded in a manual or electric stapler, or a clip belt in which a clip for sandwiching a sheet bundle or the like is connected by a metal piece or the like. The present invention relates to a tightening means connecting body.

[0002]

2. Description of the Related Art Recently, a copying machine equipped with an electric stapler has been put on the market to prevent a plurality of sheets from being mixed with each other when the sheets are copied by a sorter. .

In this electric stapler, a magazine having a large number of staple bands in which staples are connected in parallel in a band shape is provided above the end of the stack of sheets.
A clincher is provided below the end of the sheet stack to bend the legs of the staple in cooperation with the magazine.

The magazine is provided with an extruding plate that separates a part of the staple from the leading end of the staple band, and the extruding plate is perpendicular to the staple band in the state where a sheet bundle exists between the magazine and the clincher. It is designed to be pressed against. The staple pushed on the extrusion plate is separated from the staple band,
Both ends are bent into a gate shape and then inserted into the sheet bundle. When the insertion tip portion projects below the sheet bundle, the clincher approaches the pushing plate to bend the insertion tip portion along the sheet bundle.

Conventionally, staple bands of this kind have been connected by attaching staples arranged in parallel with a film with an adhesive. FIG. 11 shows a state in which a straight staple 1 is punched out from the staple band, legs 2 are formed on both sides, and a straight central portion 3 forms a U-shaped staple 1. Films 4 above and below the central portion 3
Was so thin that it could be released with a small force when the staple 1 was shot out.

[0006]

However, in the case of the conventional staple band, the film 4 is used when one staple is cut off from the staple band by the push plate.
Is stretched and protrudes to one side or both sides of the thickness of the staple 1 and the appearance is deteriorated.

Further, since the load required for separating the staples from the staple connecting body is large, it is necessary to increase the pushing force of the pushing plate, which increases the weight of the pushing plate and the input acceleration when pushing the pushing plate. There is a problem that a large driving power and a large driving mechanism are required, such as the need to speed up.

The present invention has been made in view of such a problem, and makes it easy to separate the staples from the staple band, the film does not stick out from the separated staples, and the separated staples have a good appearance. The purpose is to provide a staple band that can be made of any material.

Note that such an eye is applicable not only to straight staples but also to staples that are pre-bent into a gate shape, and also to clips of a clip machine that sandwiches the end of the sheet bundle with metal pieces or the like. Therefore, when the clip is separated from the clip connection body, the film can be prevented from protruding from both sides of the separated clip, and the driving force and driving power of the mechanism for separating the clip can be reduced.

[0010]

[0011]

[Means for Solving the Problems]
Therefore, the tightening means connecting body according to claim 1 of the present invention is a thin plate.
Needle-shaped or plate-shaped tightening
Multiple fastening means are arranged in parallel and individual fastening means are
Tightening means connected with a film so as to be separably fixed
And the film is uniaxially liable to tear.
Made of a film, which is glued to the tightening means
The direction of tearing the film is the arrangement of the tightening means.
It is characterized by being oriented in a direction perpendicular to the direction .

According to a second aspect of the present invention, there is provided a fastening means connecting body according to the first aspect , wherein the fastening means connecting body has a direction perpendicular to an arrangement direction of the fastening means and a weakest orientation with respect to a tearing load of the film. It is characterized by matching.

According to a third aspect of the present invention, there is provided a fastening means connecting body according to claim 1 or 2 , wherein the fastening means is a staple and the film is at least a staple connecting body. It is characterized by being bonded to the central part that does not become a leg.

According to a fourth aspect of the present invention, there is provided a fastening means connecting body according to any one of the first to third aspects, wherein the film is a fine fiber extending in the arrangement direction of the fastening means connecting body. It is characterized by being used together.

According to a fifth aspect of the present invention, there is provided a fastening means coupling body according to the first aspect, wherein the fastening means is either a needle-shaped staple or a plate-shaped clip. The connecting means is characterized in that it is made of a film that is brittle against a tearing load.

According to the tightening means connecting body of the first to fifth aspects of the present invention, the connecting means facilitates tearing in a direction perpendicular to the arrangement direction of the tightening means, so that the tightening means is arranged in the arrangement direction. If the plate is applied in a direction perpendicular to the plate and pushed out, the tightening means can be easily separated from the connecting body. Therefore, the fragments of the connecting means do not protrude to both sides of the tightening means. Further, since the separating means of the tightening means does not require excessive input or excessive input acceleration, it is possible to eliminate the increase in size of the driving source of the separating means or the separating mechanism.

The fastening means connecting body according to any one of claims 1 to 5 is a straight staple or a gate-shaped bent staple used for an electric or manual stapler, or
It can also be applied to plate-shaped clips used in electric or manual clip machines, and increases the power consumption when setting such electric staples and clip machines on trays of copying machines, sorters, trays of facsimiles, etc. It will also be a factor of elimination and increase of occupied space.

According to the fifth aspect of the present invention, when the fastening means is fragile with respect to the tearing load, the fastening means is separated along the input from the plate of the input means when the fastening means is separated. Since the cross section of is cut, the surfaces on both sides of the tightening means become very beautiful, the appearance looks remarkably improved, and because of the brittleness, the input of the extruding plate that is the separating means is small. Easy to finish.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION Next, a fastening means connecting body according to a preferred embodiment of the present invention will be described with reference to the drawings.
It should be noted that the same or equivalent part members as in the prior art are designated by the same reference numerals, and a duplicate description will be omitted.

1 to 3 show an embodiment of the present invention, in which 10 is a station as a connecting means for fastening means.
It is a pull band and is made long for continuously supplying the staple 1 as a tightening means. Before being tapped for use, the staple 1 has a straight rod-like rectangular cross section and is made of a surface-treated iron material or stainless steel material.

A large number of straight staples 1 are connected side by side with an adhesive to form a strip 11. A very thin film 12 is attached as a connecting means with an adhesive 13 on at least one surface of the belt-shaped body 11, here one side surface, as is apparent from FIG. Of course, film 12
It may be adhesive by melting and melting itself, or may be a thin film. In the case where the film 12 is stretched on one side as described above, it is preferable that the film 12 is placed inside the central portion 3 of the staple 1 that has been driven in, which does not look good or peel off later. The film 12 is bonded to at least the central portion 3 which does not serve as the leg 2. It is desirable that the width of the film 12 is as narrow as possible if it can withstand the handling and storage wound in a roll shape and can maintain the strip-shaped body.
In addition, if the adhesive strength sufficient to prevent the leg 2 from peeling off when penetrating a paper or the like by driving is secured to the leg 2, the film 1
It may be multiplied by 2.

The film 12 is made of a synthetic resin such as polyvinyl chloride, polyethylene, polyester, polystyrene or the like, and is stretched in at least one axial direction so as to have at least one axial orientation. The stretched film 12 has a strong tensile strength against a tensile load in the orientation direction and a weakness in the orthogonal direction. This is similar to the property of being strong and unbreakable in the lengthwise direction and weak and unbalanced in the widthwise direction, which is often seen in packing strings such as polyethylene films that are strongly stretched in one direction and biased in orientation. Is.

Therefore, the film 12 having at least uniaxial orientation is adhered so that the straight direction of the staple 1 and the orientation of the film 12 (the direction of the arrow shown in FIG. 1) coincide with each other. In this example, the film 12 is uniaxially oriented. Therefore, when using the film 12 which is stretched and oriented in multiple axes, the staple 1 is used.
The orientation not coincident with the straight direction may be an orthogonal direction, an inclined direction having an angle, or a combination thereof. In any case, it does not matter if the film 12 does not extend when it is driven in. When it becomes easy to project the film 12 by selecting the material and thickness of the film 12, the orientation of the film 12 with respect to the straight direction of the staple 1 may be made significantly weaker than the strength of other orientations.

Next, an example of the combined use of the film 12 and ultrafine fibers (not shown) will be described. The material of the ultrafine fiber is not particularly limited as long as it is strong against the tensile force in the fiber direction, but the cut portion is not conspicuous at the time of cutting (for example, it stretches and then contracts after cutting) or is thin so as not to be conspicuous. . If the ultrafine fibers are arranged along the longitudinal direction of the strip 11 at an appropriate interval of 1 to 23 and used together with the film 12, stronger winding can be performed.

The staple band 10 thus formed
Is wound and mounted in the cartridge 14 as shown in FIG. In the staple band 10 sent out from the cartridge 14, the staple 1 at the tip is a lower molding plate 15.
Is engaged with the upper molding plate 16 and is bent into a U-shaped gate shape, and the upper pushing plate 17 is lowered, so that the staple 1 at the tip is cut off and driven into a paper not shown. . At this time, since the straight direction of the staple 1 and the orientation of the film 12 are aligned with each other, weak force can be applied easily and the cut portion can be stitched and stitched with good appearance.

Next, a tightening means connecting body according to another embodiment will be described with reference to the drawings. In this embodiment, the tightening means is made of either a straight or U-shaped staple or a plate-shaped clip, and the connecting means is made of a film fragile against a tear load. Characterize. Here, the film is characterized by being polystyrene having a syndiotactic molecular structure.

FIG. 4 shows the structural formula of this syndiotactic polystyrene. The syndiotactic polystyrene (SPS) used in this embodiment uses the product name “XAREC” of Idemitsu Kosan Co., Ltd., but is not limited to this. This syndiotactic polystyrene is
Rapid crystallization, glass transition point Tg of 100 ° C, melting point T
Since m is 270 ° C, it is difficult to absorb moisture and has oil resistance.
Good for binding sheet materials.

FIG. 5 (A) is a graph showing the results of the breaking test of this syndiotactic polystyrene, where the horizontal axis shows the elongation (%) and the vertical axis shows the tearing load (Kgf).
Indicates. Figure 5 for normal plastic film
As shown in (B), a plastic region appears next to the elastic region, and this plastic region increases the elongation rate. In the case of syndiotactic polystyrene, since the plastic region is narrow, the tear load initially increases as the elongation rate increases, but when it exceeds a certain elongation rate, it shows the maximum tear load and fractures.

FIG. 6 shows the characteristic test results of this syndiotactic polystyrene. As a film with a wall thickness of 25 μm, there are a tearing direction and a tearing difficult direction in the tearing direction, but even if the average value of the maximum load is compared,
The difference between the easy direction and the difficult direction is 1.54 (difficult) -1.37
(Easy) = 0.17 [Kgf] Comparing the maximum load stress average values, 8.82 (difficult) -7.81 (easy) (kg
f / mm ² ), average elongation 1.94 (difficult) -1.84
(Easy) (mm), average elongation 3.9% (difficult) 3.7%
(Easy), and the difference between the maximum load, the maximum load stress, the elongation amount, and the elongation rate in the easy tearing direction that is easy to tear and the difficult direction that is difficult to tear is small.

In comparison, other materials such as biaxially oriented polyethylene terephthalate (OPET), easily tearable polyethylene terephthalate (PET), easily tearable polyethylene (PE) and easily tearable polypropylene (PP) are comparatively It is easy to tear, but there are large differences in the maximum load, maximum load stress, elongation, and elongation between the easy tear direction and the difficult direction.

7 to 10 show the test results of biaxially oriented polyethylene terephthalate film (OPET), easily tearable polyethylene terephthalate (PET), easily tearable polyethylene (PE), and easily tearable polypropylene (PP).

According to the tear test results of the plastic films shown in FIGS. 6 to 10, the syndiotactic polystyrene film (film thickness 25 μm) of the present embodiment is shown.
Has a maximum load stress of 7.81 (easy) to 8.82 (difficult) [K
gf / mm ² ], but the maximum load average value is 1.37 (easy)-
It is 1.54 (difficult) [Kgf]. The maximum load of the syndiotactic polystyrene film in the easy direction is smaller than the maximum load average value of the biaxially oriented polyethylene terephthalate in the easy direction (2.19 [Kgf]), and the maximum load average value of the easily tearable polypropylene in the easy direction ( 1.28 [Kgf]), but the maximum weighted average value in the difficult direction (1.54 [Kgf])
Is significantly smaller than the maximum weighted average value in the difficult direction of the other plastic films of FIGS. In addition, the connection means
Rum is easily tearable polyethylene terephthalate, easily tearable
Polyethylene and easily tearable polypropylene are also considered.

The syndiotactic polystyrene film of the embodiment has an elongation of 1.84 (easy) -1.9.
4 (difficult) [mm], elongation rate 3.7 (easy) -3.9 (difficult) [%]
And the smallest growth rate.

Therefore, the syndiotactic polystyrene film has the smallest difference between the maximum load average values in the easy direction and the difficult direction and the smallest difference between the average elongation amount and the average elongation rate, as compared with the film of FIG. . This, when used as a connecting means for fastening means connecting body, be small even extrusion load of extrusion plate, the protrusion amount of the film during cutting also shows that the very small.

As described above, according to the staple of this embodiment, since the film (coupling means) made of syndiotactic polystyrene is brittle against the tearing load, the staple plate is separated from the extrusion plate when the staple is separated. The film is cut according to the input. Therefore, both sides of the staple film become very beautiful, the appearance is remarkably improved, and the brittleness makes the input of the extrusion plate small.
Note that a plate-shaped clip may be used instead of the needle-shaped staple. Since the tearing direction of this film is oriented at a right angle to the arrangement direction of the clips, the separating means of the tightening means does not require excessive input or excessive input acceleration. It is possible to eliminate the increase in size.

The present invention can also be applied to pin-shaped straight staples used for electric or manual staplers and staples bent in a gate shape. Such an electric stapler or clip machine is used as a tray or sorter of a copying machine. Alternatively, when set on a tray or the like of a facsimile or the like, it is possible to eliminate an increase in power consumption and an increase in occupied space.

In this embodiment, as the tightening means, the straight staples 1 are wound in the form of a roll, but a staple sheet flatly connected in the form of a sheet is also included as a staple band. Needless to say, it can be applied to a gate-shaped so-called "U" -shaped staple as well.

Further, the tightening means includes a clip of a clip machine for bending a plate-like piece such as a metal piece to an end portion of the sheet bundle to sandwich the sheet bundle. In this case, the clip can be applied to either elongated rectangular stainless steel plates arranged in parallel in the width direction and connected by a film or the like to be in a roll shape or a sheet shape to be laminated. A stapler for loading these staples or a clip machine for loading clips may be an electric or manual single unit, as well as a copying machine, a facsimile,
It may be a device that sets a large number of sheet papers such as an office printing machine.

[0039]

According to the tightening means connecting body of the first to seventh aspects of the present invention, the tightening means connecting body does not come apart, and the connecting means tears in the direction perpendicular to the arrangement direction of the tightening means. By facilitating the operation, the tightening means can be easily separated from the connecting body by pressing the plate in a direction perpendicular to the arrangement direction of the tightening means and pushing it out.

Therefore, the cut pieces of the connecting means do not protrude from both sides of the tightening means, and the appearance when binding by the tightening means is good. Further, since the separating means of the tightening means does not require excessive input or excessive input acceleration, it is possible to eliminate the increase in size of the driving source of the separating means or the separating mechanism.

The tightening means connecting body according to any one of claims 1 to 7 is a straight staple used in an electric or manual stapler or a staple bent in a gate shape, or
It can also be applied to plate-shaped clips used in electric or manual clip machines, and increases the power consumption when setting such electric staples and clip machines on trays of copying machines, sorters, trays of facsimiles, etc. It is also possible to eliminate the increase in occupied space.

Particularly, in the inventions of claims 2 and 3, the release force becomes smaller, the separation of the cut portion becomes better, and the appearance becomes good. Further, by adjusting the tearing force in the longitudinal direction to be smaller than the tearing force in the width direction or making the thickness thinner so that the film can be easily cut, the band-shaped body can be easily cut.

Further, according to the invention of claim 4, when binding, the film is not attached to the end portions of the staples that are folded from both ends, so that the film may be scraped off and come out. Because there is no, it is possible to secure the appearance.

According to the fifth aspect of the present invention, the winding becomes strong, and a large amount of staples can be stored in the cartridge, or conversely, the cartridge can be made small.

Further, according to the connecting means for tightening means of claim 6, when the connecting means is fragile with respect to the tearing load, the connecting means along the input from the plate of the input means at the time of separating the tightening means. Since the cross section of is cut, the surfaces on both sides of the tightening means become very beautiful, the appearance looks remarkably improved, and because of the brittleness, the input of the extruding plate that is the separating means is small. Easy to finish.

[Brief description of drawings]

FIG. 1 is a perspective view of a staple band according to an embodiment of the present invention.

2 is a partial side view of the staple band of FIG. 1. FIG.

FIG. 3 is an explanatory diagram showing an example of using the staple band in FIG.

FIG. 4 is an explanatory diagram of a structural formula of syndiotactic polystyrene used as a connecting means.

FIG. 5 (A) is a graph showing the correlation between the elongation rate and the load in the tear test of the syndiotactic polystyrene film, and (B) is the relationship between the elongation rate and the load in the tear test of the plastic film that is frequently used such as polyethylene. It is a graph shown.

FIG. 6 is a comparative chart of the maximum load, maximum load stress, elongation amount, and elongation rate in the easy tear direction and the hard tear direction in the embodiment using the syndiotactic polystyrene film (25 μm) as the connecting means.

FIG. 7 is a comparative chart of the maximum load, maximum load stress, elongation amount, and elongation rate in the longitudinal direction and the transverse direction of the biaxially stretched polyethylene terephthalate film (12 μm).

FIG. 8 is a comparative chart of the maximum load, maximum load stress, elongation amount, and elongation rate of the easily tearable polyethylene terephthalate film (20 μm) in the easy tearing direction and the hard tearing direction.

FIG. 9 is a comparative chart of the maximum load, maximum load stress, elongation amount, and elongation rate of the easily tearable polyethylene film (22 μm) in the easy tear direction and the hard tear direction.

FIG. 10: Easy tearing polypropylene film (39μ
m) Maximum load, maximum load stress in easy tear direction and hard tear direction,
It is a comparison chart of an elongation amount and an elongation rate.

FIG. 11 is a perspective view of a U-shaped staple using a conventional staple band.

[Explanation of symbols]

1 staple Two legs 3 central part 10 staple belt 11 band 12 films 13 Adhesive

Continuation of the front page (56) Reference JP-A-60-18610 (JP, A) JP-A-61-36509 (JP, A) JP-A-53-104644 (JP, A) JP-A-63-292909 (JP , A) Japanese Patent Publication Sho 34-1370 (JP, B1) (58) Fields investigated (Int.Cl. ⁷ , DB name) F16B 15/08 B25C 5/16 B25C 7/00 B42B 5/08

Claims (5)

(57) [Claims] 1. A needle for tightening a thin plate member in the thickness direction.
Multiple plate-shaped or plate-shaped tightening means arranged in parallel
The fastening means of the
The film is a film having a property of easily tearing in a uniaxial direction.
Film made of rum and bonded to the tightening means
The tearing direction of the is relative to the arrangement direction of the tightening means.
A fastening means connection body, which is oriented in a right angle direction . 2. The tightening means connection body according to claim 1 ,
A tightening means connection body, wherein a direction perpendicular to an arrangement direction of the tightening means and a weakest orientation with respect to a tearing load of the film are matched. 3. The tightening means connection body according to claim 1 or 2 , wherein the tightening means is a staple, and the film is at least a central portion of the staple connection body that is not a leg. , A fastening means connecting body characterized by being bonded. 4. In any of the fastening means connecting body of claim 1 to claim 3, wherein the film comprises means connecting the clamping, characterized in that it is combined with ultra-fine fibers extending in the arrangement direction of the clamping means connecting body body. 5. The tightening means connecting body according to claim 1,
The tightening means connecting body is formed of either a needle-shaped staple or a plate-like clip, and the connecting means is formed of a film fragile with respect to a tear load.