Summary of the invention
But the binder in this patent documentation 2 is whole to make with rolling, extension state uniformly, and thickness is also impartial, so when being applied to cut the indivedual bookbindings folder of tiny joint-cutting, have the problem that the end is difficult to enter.And, can reckon with if the end is thinned to the degree that enters easily, will give to keep the function of bending state to bring obstacle now.
The present invention is conceived to this problem and invents, its purpose is, the characteristic of a kind of utilization by the above-mentioned file binding spare of resin maintenance bending state is provided, can easily inserts new file binding spare and file or bookbinding folder that tiny joint-cutting can also improve durability.
In order to reach above-mentioned purpose, the present invention adopts following device.
That is to say, file binding spare of the present invention, it is by having along its length the body that extends and constituting from the resinous sheet material of the extended a pair of turnover sheet of body, it is characterized in that, thickness to the both ends of major general's sheet material forms thinlyyer than other positions such as bodies, and at least in advance the boundary between body and the turnover sheet is made as bending freely, make these to be turned down between sheet and the body or turn down sheet to cooperatively interact each other, just can utilize the resin self characteristics to keep the bending state of above-mentioned intersection.
When the tiny joint-cutting on being arranged on the bookbinding folder inserts, if resin then has thickness, thereby be difficult to insertion, be just insertion easily of thin-walled still if the end is pre-formed.In addition, because be leading section, so can not bring obstacle to the function that keeps the bending state.And,, it is noted that during use but if resin, just do not have such worry if metal then can become sharp by being made as the thin-walled edge.
In order to improve durability, preferably the boundary between body and the turnover sheet is provided with rib.
As preferred embodiment can enumerating, be provided with rib with the one side of wrap direction opposition side, and the face of wrap direction is provided with the bending guide portion.
For the variation of the bookbinding amount of tackling the paper class effectively, can enumerate the turnover sheet and can further go up the file binding spare of bending at an arbitrary position.
On the other hand, as other structure of the present invention, a kind of file binding spare is provided, resinous sheet material of bending constitutes by extending also at an arbitrary position along its length for it, it is characterized in that, be pre-formed the thickness at the both ends of sheet material thinner than the position beyond it, by with this sheet material two position bendings, thereby form at the paired turnover sheet of both sides and the body between them, and these need not be turned down between sheet and the body or turn down sheet and match each other, just can utilize the resin self characteristics to keep the bending state.
Like this, because bending at an arbitrary position, thus can change the length of body, easily corresponding with the different pitches of the gutter pos of paper class.And the turnover sheet also can be gone up further bending at an arbitrary position in the front of bending part, so can also tackle the variation of the bookbinding amount of paper class effectively.
In order more easily to insert bookbinding folder joint-cutting, the both ends of sheet material preferably make hardness increase in advance.
Particularly, effectively make the both ends thinning of sheet material and hardness is increased by rolling.
Perhaps, as other structure that is used for more easily carrying out pressing from both sides the insertion of joint-cutting to bookbinding, can adopt the both ends at least that make sheet material to bend to the structure of section concavity effectively, perhaps under the situation in the zone of clear and definite in advance turnover sheet with the structure that roughly all bends to the section concavity of the turnover sheet of sheet material etc.Particularly in the latter case, not only form the end of sheet material and roughly all thickness that will turn down sheet thinner, thereby also can prevent from beginning the problem that resistance increases midway than body.In addition, in the latter case, form narrowlyer, can take into account the insertion easiness of turnover sheet and the secure support state of realizing by body than body by roughly all width dimensions with the turnover sheet of sheet material.
In order to push down the paper class reliably with the bending state, prevent to turn down sheet and reply original state easily, it is recessed to become inboard face when preferably in advance above-mentioned bending being arranged to the bending in the sheet material.
Because the present invention is a structure as described above, therefore can not only use separately, this file binding spare can also be fastened on the cover body, suitably use as file or bookbinding folder.
Because the present invention is the structure of above explanation, so can provide a kind of energy to keep the bending state effectively by resin, and can easily insert tiny joint-cutting, can also improve effectively to same position continually the durability during bending etc. file binding spare and used its file or bookbinding folder.
Description of drawings
Fig. 1 is the stereogram of the bookbinding folder of an embodiment of the invention.
Fig. 2 is used for the stereogram that this bookbinding clamps the state of having ordered the paper class with file binding spare.
Fig. 3 is that the part of the file binding spare of this embodiment enlarges stereogram.
Fig. 4 is the function declaration figure of this document binding parts.
Fig. 5 is the function declaration figure of this document binding parts.
Fig. 6 is that the part of the file binding spare of other embodiment of the present invention enlarges stereogram.
Fig. 7 is the function declaration figure of this document binding parts.
Fig. 8 is the function declaration figure of this document binding parts.
Fig. 9 is the figure of the variation of expression file binding spare.
Figure 10 is the stereogram of the bookbinding folder of above-mentioned embodiment in addition of the present invention.
Figure 11 is used for the stereogram that this bookbinding folder is bound the state of paper class with file binding spare.
Figure 12 is that the part of the file binding spare of this embodiment enlarges stereogram.
Figure 13 is the A-A line cutaway view among Fig. 2.
Figure 14 is the stereogram that the state in the bookbinding clip process is inserted file binding spare in expression.
Label declaration
A sheet material 1,401 file binding spares
2 bookbinding folders
11,111,211,311,411 bodies
12,112,212,312,412 turnover sheets
13,413 boundary 13a ribs
13b bending guide portion 14,414 ends
The specific embodiment
Below, with reference to description of drawings an embodiment of the invention.
The file binding spare 1 of present embodiment shown in Figure 1 obviously can be bound the paper class individually, can also be inserted in addition in bookbinding folder 2 grades to use.
In detail, this document binding parts 1 is by having in the longitudinal direction the body 11 that extends and constitute from the resinous sheet material a of this body 1 extended a pair of turnover sheet 12, by stamping procedure etc. cutting sheet made.Thin slice is by the polyolefin-based resins thin slice being rolled, then its stretching being obtained; Rolling is that the polyolefin-based resins thin slice is supplied to Rolling roller, makes the processing of thin slice attenuation elongation; Stretching is used rolling pulling method, section pulling method to wait under heating environment to carry out.Like this, on thin slice, can be on draw direction presenting direction and become fibrously, on thickness direction, become stratiform, thereby can obtain in the characteristic that when thickness direction carries out bending, can keep the bending state.
The length of the body 11 of the sheet material a of Xing Chenging is roughly corresponding with the spacing distance of the bookbinding hole 3a of paper class 3 shown in Figure 2 like this, a pair of turnover sheet 12, be the two ends bending from body 11, the parts of the appropriate size that erects in the direction of the bookbinding hole 3a that can insert this paper class 3, and, bending freely as shown in Figure 4 on body 11 and the boundary 13 of turnover sheet 12 between them.Then, by after inserting, making it to direction (also can be rightabout) bending in opposite directions, need not make between turnover sheet 12 and the body 11 or turn down sheet 12,12 and cooperate each other, and can utilize the resin self characteristics to keep the bending state at 13 places, above-mentioned boundary, 3 bookbindings of paper class are got up.Turnover sheet 12 can also be as shown in Figure 5 in position bending arbitrarily because of the characteristic of above-mentioned sheet material a, and can keep this bending state.
And present embodiment forms the thickness at the both ends 14 of above-mentioned sheet material a thinner than the position beyond it as shown in Figure 3, and body 11 is provided with rib 13a with the boundary 13 that turns down between the sheet 12.In detail, be rolled partly once more, make it thinner than other position by the end to sheet material a such as punching press; Rib 13a is on the face with turnover direction opposition side outstanding a little and form in the boundary 13 of above-mentioned sheet material a.On the face of turnover side, cave in a little on the contrary with it and form bending guide portion 13b the channeling conduct of bending position.It is the general triangular shape on summit that end 14 forms with slightly round front end, makes and can easily insert.
Used the bookbinding of this document binding parts 1 to press from both sides 2 as shown in Figure 1, between a pair of cover body 21,21, be provided with back of the body strip of paper used for sealing 22, on near the paper of each cover body 21 the back of the body strip of paper used for sealing 22, cut tiny joint-cutting 23 is arranged, with the turnover sheet 12 of file binding spare from the outside side insert this joint-cutting 23 and make it to erect in inner face side, insert the bookbinding hole 3a of paper class 3 logical shown in Figure 2, then, will turn down sheet 12 further bendings in position, thereby just can remain on the state of having bound after the paper class 3.
Like this, the file binding spare of present embodiment 1, by having in the longitudinal direction the body 11 that extends and constituting from the resinous sheet material a of body 11 extended a pair of turnover sheets 12, form the thickness at the both ends 14 of sheet material a thinner than the position beyond it, make boundary 13 bending freely between body 11 and the turnover sheet 12, thereby can utilize the resin properties of self to keep the bending state at 13 places, above-mentioned boundary.
Like this, by making end 14 thinnings, thereby can more easily turnover sheet 12 be inserted in the tiny joint-cutting 23 of bookbinding folder 2, in addition because only be end 14 and guarantee necessary gauge at other position by thinning, do not keep the function of bending state to bring obstacle so not only give, also can keep appropriate bookbinding state.And, when for metal, can become sharp because of attenuation makes the edge, thereby so the time it is noted that when using but because this file binding spare 1 is resinous this worry to be arranged, can be easy, use safely.
Particularly, boundary 13 between body 11 and the turnover sheet 12 is the positions that all can carry out bending operation when carrying out the additions and deletions operation of paper class 3 continually, even if resin is the reduction of deterioration thereby the confining force when worrying bending prematurely also, if yet 13 places, boundary between the sheet 12 are provided with rib 13a at body 11 and turnover in advance as present embodiment, then can suppress tired progress and keep shape maintenance function, prolong life of product effectively.
In addition, because the face of a side opposite with wrap direction is provided with rib 13a, the face of wrap direction is provided with bending guide portion 13b, therefore, can prevent to become and be difficult to the problem of bending by bending guide portion 13b, and can prevent because of the problem that constancy that bending guide portion 13b causes reduces is set by rib 13a because of rib 13a is set.
In addition, because turnover sheet 12 is set as further bending at an arbitrary position, so can also tackle the variation of the bookbinding amount of paper class effectively.
And then, when the hardness of sheet material a is can be alongst equably during the degree of bending, because with end 14 thinnings, so also may produce the state of affairs that to insert joint-cutting 23 because of bending, but in the present embodiment, rolling processing implemented at the both ends 14 of sheet material a, by rolling and in the thinning, can expect that also hardness increases effect,, prevent to produce obstacle effectively so can more easily joint-cutting 23 be opened when after thinning, inserting joint-cutting 23.
According to above-mentioned structure,, just can use as the good bookbinding folder 2 of ease for use by this document binding parts 1 is engaged on the cover body 2.
And the concrete structure of each one is not limited to above-mentioned embodiment.
For example, form as the zone of not determining body and turnover sheet, as shown in Figure 6, bending, identical with above-mentioned embodiment at an arbitrary position resinous sheet material a constitutes by extending also in the longitudinal direction, with the thickness at the both ends 14 of sheet material a form than except that the position it thin, by with this sheet material two position bendings, thereby as shown in Figure 7, the position that will be positioned at both sides is as paired turnover sheet 112, position that will be between them utilizes the resin self characteristics to keep required bending state as body 111.
If such formation, then owing to carrying out bending at an arbitrary position, so thereby the length that can more easily change body 111 is tackled the pitch variation of the bookbinding hole 3a on the paper class 3.And, because the further bending at an arbitrary position of turnover sheet 112, so can also tackle the variation of the bookbinding amount of paper class 3 effectively.
In addition, as if inner face side adhesive part 211x is set as shown in Figure 8 at body 211, then it can be fixed on well the inner face of cover body 21, and, then it can be fixed on the surface of paper class 3 well if adhesive part 212x is set in the inner face side that turns down sheet 212.
And then, make body 311 wideer as shown in Figure 9 than turnover sheet 312, also be effective thereby make its formation with the contact stabilization at the back side of bookbinding folder 2 or paper class 3.
Moreover, the structure except above-mentioned, as being rolled and realizing one of method of thinning to the end, adopt as Figure 10 extremely file binding spare 401 shown in Figure 14 also be effective.
This file binding spare 401 is same, and obviously much less can bind the paper class individually is, and can also insert bookbinding folder 2 and wait and use.
Promptly, this document binding parts 401, by having in the longitudinal direction the body 411 that extends and from these body 411 extended a pair of turnover sheets 412, the resinous sheet material a formation the same with the file binding spare 1 of above-mentioned embodiment made cutting sheet by stamping procedure etc.It is the general triangular on summit that end 414 forms with slightly round front end, makes and inserts easily.The length of the body 411 of sheet material a is roughly corresponding with the spacing distance of the bookbinding hole 3a of paper class 3 shown in Figure 11, a pair of turnover sheet 412 is parts of the appropriate size that can erect from the two ends bending of body 411 and in the direction of the bookbinding hole a that inserts this paper class 3, and body 411 is set as with turnover sheet 412 can be in their 413 places, boundary bending freely.And, by after insertion to direction bending in opposite directions, cooperate each other thereby need not make between turnover sheet 412 and the body 411 or turn down sheet 412,412, can utilize the resin self characteristics to keep the bending state at 413 places, above-mentioned boundary, paper class 3 is bound.Turnover sheet 412, according to the characteristic of above-mentioned sheet material a can also be corresponding the further bendings at an arbitrary position such as stacked thickness of paper class 3, and can keep this bending state.
And, present embodiment is by punching press etc. during with the operation of cutting sheet, or when the operation of its front and back, with respect to the roughly integral body that becomes the position that turns down sheet 412 among the sheet material a (in detail as shown in figure 12, end 414 except the general triangular shape, from front to and the boundary 413 of 411 of bodies near), the convex that allocation plan does not show mould cylindraceous and the columnar mould of spill with it from clamping up and down, to turn down sheet 412 and between them, carry out drawing, become the flexure plane 412a of inboard face when being formed on bending for recessed such section concavity.The file binding spare of this embodiment, make the roughly whole thickness of turnover sheet 412 form thinlyyer than body 411, make the roughly whole width dimensions dy of turnover sheet 412 form narrowlyer in addition, make near its 413 width dimensions that have a common boundary connect turnover sheet 412 and body 411 with gradually changing than the width dimensions dx of body 411.
When the end with this file binding spare 401 faces toward joint-cutting 23 insertions of bookbinding folder 2 as shown in figure 10, the end 414 that turns down at first as shown in figure 14 in the sheet 412 enters joint-cutting 23, then than its more by the position of base end side on one side with joint-cutting 23 distortion or push the identical shape of curved cutplanes that becomes and turn down sheet 412 open, enter into this joint-cutting 23 on one side, but this moment is owing to comprising that end 414 will turn down sheet 412 integral body and be made as thin-walled, so can more easily turn down the insertion operation of sheet 412 to tiny joint-cutting 23.And turnover sheet 412 forms the shape that is difficult for bending with respect to the power that is subjected in the longitudinal direction in that roughly section is all crooked on the whole, so even applying bigger power is pressed into also and can bend, can enter joint-cutting 23 as the crow flies.
On the other hand, though be the section bending, but if in the wrap direction application of force, then turn down sheet 412 also than being easier to bending, at this moment owing to be and be positioned at the section shape that inboard face is made as concavity because of bending, therefore, comprise interface 13, can only the bending part of its front be removed curved shape partly and a pair of turnover sheet 412 is folding to direction in opposite directions as shown in figure 11.And, in the time will being positioned at inboard face and being made as concavity because of bending, with opposite structure, the situation that is about to be made as because of face that bending is positioned at the outside concavity compares, can push down the paper class reliably by an opposite side of turnover sheet 412, be limited in the very narrow scope owing to remove crooked position because of bending in addition, therefore can avoid producing the tendency that makes 412 perks of turnover sheet because of the bounce of resin as far as possible.
In addition, can comprise also that in Figure 10 to Figure 14 the section that end 414 will turn down sheet 412 interiorly bends to concavity, perhaps also can only bend to the section concavity with end 414.In the latter case, preferably will be made as the end from the bigger scope of front end certain degree alongst of turnover sheet 412.In addition, section is bent to the structure of concavity, also can be applied in the lump in the structure of the Fig. 1 to Fig. 5 that increases by rolling hardness of seeking the end.
Other structure also can carry out various distortion in the scope that does not break away from purport of the present invention, also can obtain identical effect even certain this file binding spare is applied to file.