JP4385217B2 - Rail holder - Google Patents

Description

  The present invention relates to a rail holder that binds a paper sheet using a double-folded cover and a back binding rail.

Conventionally, as this type of rail holder, for example, as shown in FIGS. 10 and 11, a cover 42 that is folded in half via a V-shaped bent portion 41 and a large number of sandwiches in the cover 42. A rail holder 40 having a structure in which a sheet of paper 43 is bound by a holding force of a back binding rail 44 is known (hereinafter referred to as a first conventional example).

  Since the rail holder 40 according to the first conventional example has the above-described configuration, when the pinch opening 47 of the back binding rail 44 becomes excessively widened due to the increase of the binding amount of the paper sheet 43. The first problem that the pinching function of the pin 47 is not sufficiently exhibited and the folding cover 42 and the paper 43 are likely to come off, or the amount of binding of the paper 43 is already large is known. The second problem is that when the forcible binding is performed forcibly, the pinching function of the pin 47 is not sufficiently exhibited, and the folding cover 42 and the sheet 43 are likely to come off, and the back binding rail. When an external force that moves the lens 44 in the direction opposite to the free end of the cover is applied, the back binding rail 44 is unintentionally detached.

  The problem of slipping out of the cover 42 and the paper sheet 43 and the problem of slipping off the back binding rail 44 are widened by the number of paper sheets in which the V-shaped bent portion 41 is sandwiched and bound. The side surface portions 45 and 46 of the bent shape portion 41 become tapered as they approach the pinching port 47 of the back binding rail 44, and the pinching on both sides forming the pinching port 47 of the back binding rail 44 This is because the pieces 48 and 49 are close to a parallel state and do not sufficiently perform the pinching function of the pinching opening 47.

  Therefore, as a means for eliminating the cause, as shown in FIG. 12 and FIG. 13, the V-shaped bent portion 41 of the bifold cover 42 is formed into a U-shaped bent portion 51 so that the rear surface is formed. There is provided a rail holder (hereinafter, referred to as a second conventional example) 50 which is devised so as to form a portion 52 and thereby be in a tapered state which does not become the tapered state but rather in the reverse direction.

  However, according to the second conventional example, the third problem that the back binding rail 44 is detached is still not sufficiently solved.

  The unsolved state of the third problem caused by the second conventional example is likely to occur when the thickness of the bound paper sheet is thicker than the width of the back surface portion 52. That is, the both-side sandwiched pieces 48 and 49 of the back binding rail 44 are widened by the number of sheets that are bound and bound, and the both-side sandwiched pieces 48 and 49 of the back binding rail 44 become wider as they approach the sandwiching opening 47. Occurs when taper is reached.

  The present invention provides a novel rail holder that can easily improve the inconveniences of the structure at a stroke while basically adopting the configuration of the second conventional example, and that can be implemented easily and easily. With the goal.

In order to achieve the above object, in the rail holder according to the present invention, a cover body having a front cover part and a back cover part on both sides of the spine cover part, and a spine for binding a paper sheet in the cover body. The rail holder includes a binding rail and includes a check piece continuously extending from an edge of the front cover portion or from an edge of the back cover portion.

As a result, as shown in FIG. 5, the back cover portion in the cover body after the paper sheets are accommodated in the cover body with a large number of paper sheets sandwiched between the front cover portion and the back cover portion. The back cover part is inserted into the back binding rail by performing an operation of sliding the cover body downward after positioning the lower end in the longitudinal direction above the upper end of the back binding rail in the longitudinal direction. And bookbinding can be completed. At the time of this insertion operation, the check piece part moves together with the spine cover part and is put in the back binding rail, and a large number of sheets sandwiched between the front cover part and the back cover part. The leaf is pinched together with the front cover part and the back cover part by the back binding rail.

  As a result, even if an external force in a direction opposite to the free end of the cover body is applied to the back-bound rail in the pinched state and the back-bound rail is about to come off, the check piece portion interferes. This is completely prevented (see FIGS. 3 and 4), thus solving the third problem of causing the back binding rail to come off. Incidentally, it goes without saying that the spine portion has a function of solving the first problem and the second problem.

Moreover, in the rail holder according to the present invention, the spine cover portion is a state in which the synthetic resin sheet functioning as the front cover portion and the base side edge portion of the synthetic resin sheet functioning as the back cover portion are overlapped. The non-return piece portion is continuously extended from the edge of the synthetic resin sheet positioned outside in the superposition.

Thus, a synthetic resin sheet having a non-return piece portion component continuously at the base end side edge portion and a synthetic resin sheet having a non-return piece portion component at the base end side edge portion are prepared. By covering the base end side edge portions of these synthetic resin sheets in a superposed state, a cover body having a check piece portion can be easily obtained. In addition, it is possible to obtain a finished product in which the front cover part and the back cover part have different colors, a finished product made of a different material, or a finished product in which one of the front and back cover parts is made of a transparent synthetic resin sheet. become.

Furthermore, in the rail holder according to the present invention, it is another feature that the synthetic resin sheet is made of a thermoplastic synthetic resin .

  Therefore, when obtaining a cover body having a check piece, a high-frequency welding method, a low-frequency welding method, an ultrasonic welding method, or the like with good workability can be adopted, and mass production, cost reduction, etc. Suitable.

Furthermore, in the rail holder according to the present invention, the check piece portion is provided with a force to return to an inclined state when receiving no external force due to the elasticity of the synthetic resin sheet . One of the features.

  Therefore, the check piece portion can strongly press the inner peripheral surface of the back binding rail (see FIG. 2) to obtain a large frictional force, and exhibits a stronger check function.

Further, in the rail holder according to the present invention, the back binding rail has first and second clamping pieces facing each other, and the first and second clamping pieces are the front cover and the back. A pressing edge that presses and clamps a portion of the cover portion close to the spine portion from both sides, and the pressing edge is an engagement edge that the leading edge of the check piece portion engages along the inner side of the pressing edge. It is one of the other features to have .

  Therefore, the back binding rail can be easily implemented by adopting a short material obtained by cutting a long extruded material made of resin extending in the longitudinal direction into a predetermined length. In addition, the engaging edge to which the front end edge of the check piece portion is locked bends the front end portion of the first and second holding piece portions into an L shape (see FIGS. 2, 3 and 4), or It can be easily obtained by making the inner surface of the bent portion concave in the L shape (see FIG. 7). In addition, the concave engagement edge obtained in this way combines the engagement state of the tip edge of the check piece portion engaged with this with the force to return the check piece portion itself to the inclined state. It can be reliably maintained.

Furthermore, in the rail holder according to the present invention, it is one of other features that a complementary piece is provided at the tip edge of the check piece portion via a bendable portion .

  Therefore, when the number of sheets to be bound and bound is small, for example, one sheet, the complement piece is sandwiched between the pressing edge of the back binding rail and the cover portion, and the amount is increased. It can be used to stop, and when there is a large amount of paper sheets to be pinched and bound, and it is not necessary to increase the amount, it can be folded and stored in the back binding rail so as not to get in the way.

The rail holder according to the present invention relates to a rail holder composed of a cover body having a front cover part and a back cover part on both sides of the spine cover part, and a back binding rail for binding a paper sheet in the cover body, Since it has a check piece part extended from the edge of the front cover part or from the edge of the back cover part, the third problem is that the back cover part and the check piece part are provided. Completely young can be solved sufficiently.

Moreover, in the rail holder according to the present invention, the spine cover portion is welded in a state in which the synthetic resin sheet functioning as the front cover portion and the base end side edge portion of the synthetic resin sheet functioning as the back cover portion are overlapped. A new rail provided with a back binding rail which is formed so that the check piece portion is continuously extended from the edge of the synthetic resin sheet which is made outside in the superposition. The holder can be provided reliably and easily. In addition, a cover body having a check piece that exhibits a strong check function can be easily implemented at low cost. Further, since the front cover portion and the back cover portion are formed of separate members, the front cover portion and the back cover portion are finished in different colors or finished with different materials, the front back cover. A finished product in which one of the parts is made of a transparent synthetic resin sheet can be provided.

Further, in the rail holder according to the present invention, when the synthetic resin sheet made of thermoplastic synthetic resin is used, the front cover portion and the back cover portion can be attached to each other by a welding method. A finished product with a different color, a finished product with a different material, and a finished product with one of the front and back cover parts being transparent can be easily and easily produced, which is suitable for mass production.

Further, in the rail holder according to the present invention, the check piece portion is configured to have a force to return to a tilted state when receiving no external force due to the elasticity of the synthetic resin sheet , As described above, a stronger check function using frictional force can be obtained.

Further, in the rail holder according to the present invention, the back binding rail has first and second sandwiching piece portions facing each other, and the first and second sandwiching piece portions are in the front cover portion and the back cover portion. having a pressing edge for clamping by pressing from both the point close to the spine portion, and the pressing edge has a engaging edge which leading edge of the check strip along its inner edge is engaged By configuring as above, the back binding rail can adopt a method in which a long extruded material made of resin extending in the longitudinal direction is manufactured in advance and cut into a predetermined length. . In addition, the engaging edge to which the front end edge of the check piece portion is locked bends the front end portion of the first and second holding piece portions into an L shape, or the inner side surface of the bent portion has a concave shape in the L shape. Can be easily obtained. In addition, the concave engagement edge obtained in this way combines the engagement state of the tip edge of the check piece portion engaged with this with the force to return the check piece portion itself to the inclined state. It can be reliably maintained.

Furthermore, in the rail holder according to the present invention, the supplementary piece is provided at the front end edge of the check piece portion via the bendable portion, so that, for example, one sheet of paper to be sandwiched and bound is provided. It is advantageous if the amount is small.

  1 to 6 show a first embodiment of the present invention. As shown in the drawing, the rail holder 1 according to the first embodiment includes a cover body 5 including a front cover portion 2, a spine cover portion 3 and a back cover portion 4, and one or a plurality of pieces in the cover body 5. It is composed of a back binding rail 7 for binding sheets of paper 6.

  The cover body 5 is configured by connecting a transparent thermoplastic synthetic resin sheet 8 functioning as the front cover portion 2 and a transparent synthetic resin sheet 9 functioning as the back cover portion 4. The synthetic resin sheets 8 and 9 are made of a thermoplastic synthetic resin. The connecting portion 10 is bonded to each other by welding in a state where the base end side edge portions 11 and 12 of the synthetic resin sheets 8 and 9 are overlapped to form the spine cover portion 3. . Further, the spine cover portion 3 has a check piece portion 13 that functions to prevent it from coming off after completion.

The check piece 13, the with both synthesized in the proximal side edge portions 11, 12 of the resin sheet 8 and 9 by extending the edge towards existing outside provided narrow extension 14, the narrow It is provided by giving the extension part 14 a tilting inward direction. The check piece portion 13 has a force to return to a tilted state when receiving no external force due to the elasticity of the synthetic resin sheet. However, in the present invention, it is not an essential condition to exhibit the tilted state and to have a returning force, and even when the check piece 13 is completely collapsed, it does not have a returning force. It can also be implemented in the state.

  Further, the back binding rail 7 is not particularly limited, but the rail holder 1 according to the first embodiment is obtained by cutting a resin extrusion material extending in the longitudinal direction into a predetermined length. A short material 16 is used. The short material 16 includes first and second sandwiching piece portions 17 and 18 that face each other and a continuous portion 19 that continuously connects one edge of the first and second sandwiching piece portions 17 and 18. The other edges of the first and second holding pieces 17 and 18 have pressing edges 24 and 25 for pressing and holding the portions 22 and 23 close to the spine cover 3 in the front cover 2 and the back cover 4 from both sides. Have. The pressing edges 24 and 25 have an engaging edge 27 along which the front end edge 26 of the check piece portion 13 is engaged.

  Next, a method for using the rail holder 1 according to the first embodiment will be described.

  First, as shown in FIG. 5, a large number of paper sheets 6 are sandwiched between the front cover portion 2 and the back cover portion 4 and accommodated in the cover body 5, and then the spine portion of the cover body 5 is placed. 3 is positioned so that its lower end in the longitudinal direction is above the upper end in the longitudinal direction of the back binding rail 7. Specifically, the lower end portion of the spine cover portion 3 is positioned above the upper end portions of the first and second sandwiching pieces 17 and 18 of the back binding rail 7 and the first and second portions of the back binding rail 7 are arranged. The lower ends of the front cover portion 2 of the cover body 5 and the lower portions 22 and 23 of the back cover portion 4 near the spine cover portion 3 are positioned above the upper ends of the pressing edges 24 and 25 of the sandwiching pieces 17 and 18. In this positional relationship, the cover body 5 is slid downward, and by this sliding operation, the spine cover 3 is inserted into the back binding rail 7 and a portion 22 of the cover 5 close to the spine cover 3 is provided. , 23 is inserted between the upper ends of the pressing edges 24, 25 of the first and second clamping piece portions 17, 18. In accordance with the sliding operation, the check piece 13 moves together with the spine cover 3 and is placed in the back binding rail 7. In addition, a large number of paper sheets 6 sandwiched between the front cover portion 2 and the back cover portion 4 are arranged together with the front cover portion 2 and the back cover portion 4 in the first and second sandwiching piece portions 17 and 18. It is sandwiched between the pressing edges 24 and 25. In this way, bookbinding can be performed.

  Even if the bookbinding product obtained using the rail holder 1 according to the first embodiment pulls the back binding rail 7 in the direction opposite to the free end of the cover body 5, the check piece portion functions. The back binding rail 7 does not fall off.

  In the bookbinding state, when it becomes necessary to add / remove the paper sheet 6, the back binding rail 7 may be slid and removed in the longitudinal direction, and the addition / removal can be facilitated.

  Further, the rail holder 1 according to the first embodiment facilitates the sliding operation of sliding the cover body 5 downward and allowing the spine cover portion 3 to enter the back binding rail 7. Diagonal cut guides 28 are provided at both ends of the check piece 13.

  FIG. 7 shows a rail holder 31 according to the second embodiment. In the rail holder 31 according to the second embodiment, the engaging edge 27 is provided with a protrusion hooking portion 32 along the edge.

  FIG. 8 shows a rail holder 33 according to the third embodiment. The rail holder 33 according to the third embodiment is provided with the back binding for facilitating the sliding operation for sliding the cover body 5 downward to allow the back cover portion 3 to enter the back binding rail 7. Diagonal cut guides 34 and 35 are provided at both ends of the rail 7 and both ends of the check piece 13.

FIG. 9 shows a rail holder 36 according to the fourth embodiment. In the rail holder 36 according to the fourth embodiment, a complementary piece 38 is provided on the tip edge of the check piece 13 via a bendable part 37. As shown in FIG. 9, the complement piece 38 is sandwiched between the pressing edge 24 and the portion 22 close to the pressing edge 24 when the number of sheets 6 to be pinched is as small as one sheet. Therefore, it can be used to strongly clamp. The complementary piece 38 is folded and stored in the back binding rail 7 when there is no need to increase the amount of paper 6 to be pinched and bound, as indicated by a virtual line 39 in FIG. I can leave it out of the way.

  Detailed descriptions of the rail holders 31, 33, and 36 according to the second, third, and third embodiments will be omitted by attaching the same reference numerals to the same portions.

It is a perspective view which shows 1st Embodiment. It is sectional drawing which follows FIG. 1A-A line. It is sectional drawing which shows the state in which external force was added to the back binding rail. It is sectional drawing which similarly shows the state in which many paper sheets were bound. It is a perspective view shown in the state where a back binding rail was removed. It is sectional drawing which follows FIG. 5B-B line. It is sectional drawing which shows 2nd Embodiment. It is a front view which shows 3rd Embodiment. It is a front view which shows 3rd Embodiment. It is sectional drawing which shows a 1st prior art example. It is sectional drawing which similarly shows the state in which many paper sheets were bound. It is sectional drawing which shows a 2nd prior art example. It is sectional drawing which similarly shows the state in which many paper sheets were bound.

DESCRIPTION OF SYMBOLS 1 Rail holder 2 Front cover part 3 Back cover part 4 Back cover part 5 Cover body 6 Paper sheet 7 Back binding rail 8 Synthetic resin sheet 9 Synthetic resin sheet 10 Connection part 11 Base end side edge part 12 Base end side edge Part 13 Check piece part 14 Narrow extension part 16 Short material 17 First holding piece part 18 Second holding piece part 19 Continuous part 22 Close part 23 Close part 24 Press edge 25 Press edge 26 Tip edge 27 Engagement edge 28 Oblique Cut guide 31 Rail holder 32 according to the second embodiment Projection hook portion 33 Rail holder 34 according to the third embodiment Oblique cut guide 35 Oblique cut guide 36 Rail holder 37 according to the fourth embodiment Bendable portion 38 Complement piece 39 Virtual line 40 Rail holder 41 according to the first conventional example V-shaped bent portion 42 Cover 43 folded in half 43 Paper sheet 44 Back binding rail 4 Both side portions 46 opposite side surfaces 47 jaws 48 sandwiching pieces 49 sandwiching piece portion 50 and the second bent portion 52 rear portion of the rail holder 51 U-shaped in accordance with the prior art

Claims (5)

A rail holder comprising a cover body having a front cover and a back cover part on both sides of the spine cover part, and a back binding rail for binding paper sheets in the cover cover, the spine cover part being a front cover part The base end of the synthetic resin sheet formed by welding in a state where the base side edge portion of the synthetic resin sheet functioning as the back cover portion and the base end side edge portion of the synthetic resin sheet functioning as the back cover portion are overlapped A rail holder, comprising a check piece continuously extending from an edge of a side edge . The rail holder according to claim 1, wherein the synthetic resin sheet is made of a thermoplastic synthetic resin. The rail holder according to claim 1, wherein the check piece portion has a force to return to a tilted state when receiving no external force due to the elasticity of the synthetic resin sheet . The back binding rail has first and second clamping pieces that face each other, and the first and second clamping pieces press the portions near the spine cover in the front cover part and the back cover part from both sides. The pressing edge includes an engaging edge that engages with a leading edge of the check piece portion along an inner side of the pressing edge. Rail holder according to any one . The rail holder according to any one of claims 1 to 4, wherein a complement piece is provided at a distal end edge of the check piece portion via a bendable portion .

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