JP4196921B2 - Binding tool - Google Patents

Description

  The present invention relates to a binding tool that can hold paper sheets between a base and a paper pressing portion.

Conventionally, a paper pressing unit that can move between a base applied to a file or the like, a binding position and a non-binding position, and can hold a paper sheet while being pressed between the base and the paper pressing unit. There is known a lever-type binding tool including an operation unit operable at a binding position and a non-binding position. In such a binding tool, the paper pressing portion is connected to the substrate so as to be movable between the binding position and the non-binding position via a link mechanism, and the link mechanism extends in the longitudinal direction of the base. A link member having an arm portion having an inclination with respect to it is provided. (For example, see Patent Document 1.)
JP 2003-291573 A

  Thus, in the configuration described in Patent Document 1, a configuration is adopted in which one end portion of the torsion coil spring member is inserted into the paper pressing portion and supported at the edge of the paper pressing portion and the intermediate portion in the width direction. When a sheet is bound, the end of the torsion coil spring member that is inserted through the paper pressing portion is not necessarily horizontal, and often has a shape that rises toward the side on which the paper sheet is disposed. At that time, when the torsion coil spring member comes into contact with the lower edge of the insertion hole provided at the edge of the paper pressing portion and comes into contact with the upper edge of the insertion hole provided in the intermediate portion in the width direction, the torsion coil spring member is There may be a problem that only one side of the portion is pressed and the paper sheets cannot be pressed stably.

  The present invention is configured to solve the above problems.

That is, the binding tool according to the present invention includes a base, a paper pressing portion that is disposed at a position where the paper sheet can be sandwiched between the base, and at least both side edges in the width direction can contact the paper sheet, and the paper An operation unit that receives an operation force for moving the pressing unit toward and away from the base, a stopper that locks the operation unit at the binding position, and the paper pressing unit when the operation unit is positioned at the binding position. An urging element that elastically urges the urging side, and an urging force receiving portion that abuts against the urging element in preference to other parts is provided at an intermediate portion in the width direction of the paper pressing portion. The paper pressing portion has a U-shape that opens downward in a cross-sectional view, and is provided with a concave portion formed by reducing the width dimension in the paper pressing portion, An urging force receiving portion is formed, and the urging force receiving portion is in contact with the urging element. That together form a contact surface, the biasing force receiving portion, cut and raised binding side wall of the paper pressing unit, and characterized in that the provided by stretching the side wall of the anti-binding side To do.

  In such a case, the urging force receiving portion is in contact with the urging element so as to receive the urging force from the urging element, so that the paper pressing portion presses the paper sheets evenly. Therefore, the paper sheets can be stably held.

  The “intermediate portion in the width direction of the paper pressing portion” is a concept including regions inside the side edge portions of the portion where the paper pressing portion can come into contact with the paper sheet.

In addition, since the paper pressing portion has a U-shape that opens downward in a cross sectional view , such a paper pressing portion can be easily obtained .

Furthermore , since the concave portion formed by reducing the width dimension is provided in the paper pressing portion, and the urging force receiving portion is provided in the concave portion, the width direction intermediate portion of the paper pressing portion has a simple configuration. An urging force receiving portion can be provided.
In addition, since the abutment surface that abuts against the urging element is formed in the urging force receiving portion, the urging element can be abutted on the abutment surface, and thus the paper The holding part can hold the paper sheets more stably.

  Further, if the concave portion is formed only on the upper portion of the paper pressing portion, the urging force from the urging force receiving portion provided in the concave portion is evenly transmitted to the bottom surface of the paper pressing portion. The effect that the paper pressing portion can effectively press the paper sheets can be realized.

  In addition, as a mode in which the effect of the paper pressing portion pressing the paper sheets uniformly can be realized more reliably, the lower edge of the portion in the vicinity of the biasing force receiving portion of the paper pressing portion is positioned above the other portion. Are listed. This is because it is possible to prevent the occurrence of a problem that only the lower edge of the portion in the vicinity of the urging force receiving portion comes into contact with the paper sheet.

  As a mode in which the effect of the paper pressing portion pressing the paper sheets evenly can be realized more reliably, the biasing force receiving portion is provided in only one place, and the biasing force receiving portions are close to each other at a plurality of locations. Are provided.

  As a mode in which such a binding tool can be realized with a simple configuration, the biasing element is pivotally attached to the base, and one end is connected to the operation portion and the other end is connected to the paper pressing portion. What is a coil spring member is mentioned.

  In the binding tool described in the preceding stage, the torsion coil spring is disposed on the anti-binding side of the paper pressing portion as an aspect for making the biasing force receiving portion abut on the torsion coil spring member with priority over other parts. A spring member insertion hole for penetrating the member is provided, and the lower end edge of the spring member insertion hole is positioned below the lower end of the torsion coil spring member when the operation portion is locked at the locking position. To do.

  Further, as another aspect of the binding tool according to the present invention, a paper presser that is disposed at a position where a paper sheet can be sandwiched between the base and at least both side edges in the width direction can contact the paper sheet. , An operation part that receives an operation force for moving the paper pressing part to and away from the base, and a biasing element that biases the paper pressing part to the base side when the operation part is positioned at the binding position. And an urging force receiving portion that comes into contact with the urging element in preference to other portions is provided at the intermediate portion in the width direction of the paper pressing portion. .

  Even in such a case, since the urging force receiving portion abuts on the urging element so as to receive the urging force from the urging element, the paper pressing portion presses the paper sheets evenly. Therefore, the paper sheets can be stably held. The urging element is not limited to urging the paper pressing portion toward the base using the elastic force of the urging element itself, but also, for example, using the tightening force of a screw member. It is also possible to use a repulsive force when a paper sheet is clamped, such as a paper sheet clamped between the paper pressing part.

The binding tool according to the present invention includes an urging force receiving portion that comes into contact with the urging element at an intermediate portion in the width direction of the paper pressing portion, and acts from the urging element to the paper sheet side via the urging force receiving portion. Therefore, the paper pressing portion can press the paper sheets evenly, and thus the paper sheets can be stably held.
In addition, since the paper pressing portion has a U-shape that opens downward in a cross sectional view, such a paper pressing portion can be easily obtained.
Furthermore, since the concave portion formed by reducing the width dimension is provided in the paper pressing portion, and the urging force receiving portion is provided in the concave portion, the width direction intermediate portion of the paper pressing portion has a simple configuration. An urging force receiving portion can be provided.
In addition, since the abutment surface that abuts against the urging element is formed in the urging force receiving portion, the urging element can be abutted on the abutment surface, and thus the paper The holding part can hold the paper sheets more stably.

  The binding tool 1 according to the present invention is applied to a file F that can be stored in a state in which a paper sheet P such as a document is bound, as shown in FIG. The file F includes a cover body H and a binding tool 1 attached integrally to the inner surface of the cover body H.

  First, the cover body H will be briefly described. The cover body H is an integrally molded product made of, for example, a synthetic resin material, and is provided as a pair with the spine cover H1 and the spine cover H1 interposed therebetween. It has a cover H2 and a back cover H3. The cover body H is provided with groove portions M functioning as hinges at the boundary portion between the spine cover H1 and the front cover H2 and at the boundary portion between the spine cover H1 and the back cover H3. It is configured to be foldable.

  The binding tool 1 has a cover body H as shown in a perspective view of FIG. 2, a front view of FIG. 3A, a plan view of FIG. 3B, and a side view of FIG. A base 2 having a base main body 21 as a substrate, a paper pressing portion 3 disposed at a position where the paper sheet P can be sandwiched between the base main body 21, and the paper pressing portion 3 as the base. 2, a link member 4 supported so as to be able to come into contact with and away from the base 2, a lever 5 as an operation part for receiving an operation force for bringing the paper pressing part 3 into and out of contact with the base 2, and a stopper S for locking the lever 5 at the binding position. The torsion coil spring member 6 is pivotally attached to the base 2 and has one end connected to the paper pressing portion 3 and the other end connected to the lever 5.

  As shown in FIGS. 2 to 4, the base 2 is shown in FIG. 5 (a) as a plan view, as shown in FIG. 5 (b) as a side view of the binding side, and as shown in FIG. As shown in FIG. 6, the base body 21 is a substrate that is formed using a thin metal material and extends along the vertical direction of the cover body H, and the short direction of the base body 21. It is an integral molded article which has the standing wall 22 which stands up upwards continuously from one end edge. The base body 21 has fixing holes 211 in the vicinity of both ends in the longitudinal direction, and rivets (not shown) are inserted into the fixing holes 211 to fix the base 1 to the cover sheet H. Further, a rib-like raised portion 212 extending along the longitudinal direction is formed at the other end portion of the base body 21 in the short direction, and the raised portion 212 provides resistance for preventing the document S to be bound from dropping off. It comes to grant. Furthermore, link member support portions 213 and 213 for pivotally supporting the link member 4 are formed by partially raising and raising the central portion in the width direction in the vicinity of both longitudinal ends of the base body 21, A spring support wall 214 for pivotally supporting the torsion coil spring member 6 is formed by partially cutting and raising the vicinity of the central portion in the longitudinal direction of the main body 21. In the upper part of the link member support portions 213 and 213, concave portions 213b and 213b capable of accommodating an arm portion 41 to be described later of the link member 4 are formed, and in the center of the concave portions 213b and 213b, the link member 4 will be described later. Link member insertion holes 213x and 213x are formed through which the base end portion 42 can be inserted. Then, a portion other than the recesses 213b and 213b of the link member support portions 213 and 213 is used as a paper contact portion, and contact surfaces 213a and 213a on which the paper sheet P can be contacted are formed on the paper contact portion. . On the other hand, link member support holes 22x and 22x are formed in the standing wall 22 at positions corresponding to the link member insertion holes 213x and 213x formed in the link member support portions 213 and 213, respectively. Concave portions 22y and 22y are formed on the outer surfaces around the holes 22x and 22x to prevent the base end of the link member 4 from protruding.

As shown in FIGS. 2 to 4, the paper pressing unit 3 has an anti-binding side side view of FIG. 7A, a plan view of FIG. 7B, and a binding side side view of FIG. FIG. 8C is a cross-sectional view taken along line bb in FIG. 8, and is an integrally formed product obtained by press-molding, for example, a single sheet metal material, and binds the paper sheet P. At the same time, the paper sheet P is pressed from above and has a substantially U shape in a side sectional view. That is, the paper pressing portion 3 includes a flat plate portion 31 having a rectangular shape extending along the longitudinal direction of the base 2 in plan view, and a first side wall 32 depending from the edge of the flat plate portion 31 on the upright wall 22 side. And a second side wall 33 depending from the opposite edge of the flat plate portion 31. Further, the first side wall 32 has a first bearing hole 321 into which the rotating end 43 of the link member 4 is inserted, and a second bearing hole 322 into which a bending shaft 62 (to be described later) of the torsion coil spring member 6 is inserted. A third bearing hole 331 into which the rotating end 43 of the link member 4 is inserted and a bending shaft 62 (to be described later) of the torsion coil spring member 6 are inserted into the second side wall 33. A bearing hole 332 is formed. That is, the rotation end 43 of the link member 4 passes through the paper pressing portion 3 through the first bearing hole 321 and the third bearing hole 331 in order. Further, the bending shaft 62 of the torsion coil spring member 6 passes through the paper pressing portion 3 through the second bearing hole 322 and the fourth bearing hole 332 in order, as indicated by an imaginary line in FIG. . And the recessed part 33a, 33b is each formed in the site | part of the said 2nd side wall 33 near these 3rd bearing holes 331 and the 4th bearing holes 332 by reducing a width dimension. Moreover, said the lower edge portion of the fourth bearing hole 332 is provided with a biasing force receiving portion 333 abuts on the torsion coil spring member 6 extends to the first side wall 32 side. The upper surface of the urging force receiving portion 333 is an urging force receiving surface 333 a that can be in surface contact with the torsion coil spring member 6.

  As shown in FIG. 9A, the link member 4 has a front view and a side view shown in FIG. It is a linear member having a crank shape extending in the direction, and the base end portion 42 is pivotally supported by the link member support portion 213 and the standing wall 22 as indicated by an imaginary line in FIG. In addition, the rotating end portion 43 is made to penetrate the paper pressing portion 3 as described above. Moreover, in this embodiment, while the diameter of the site | part accommodated in the said paper holding | suppressing part 3 among the said rotation edge parts 43 is made larger than the diameter of another site | part, the large diameter part 431 is formed, A part of the first bearing hole 321 serves as an attachment port 321a through which the large-diameter portion 431 can pass.

  The lever 5 is an integrally molded product made of, for example, a single sheet-like metallic material. In the following description, one end attached to the base 2 is an attachment end, and the other end is a free end. An insertion hole (not shown) through which the fixing pin N can be inserted is formed on the side opposite to the binding end of the lever 5 so that the corresponding portion of the binding side surface can pass through the fixing pin N. Notched.

  The stopper S includes an engaging claw 54 that protrudes outward and upward from the first side surface portion 52, and the base that is engageable with the engaging claw 54 when a lever is positioned at the binding position. It is formed by the engagement holes 22k formed in the two standing walls 22 and functions by engaging them.

  The torsion coil spring member 6 is formed using, for example, a single metal wire, and has a coiled portion 61 wound in a substantially cylindrical shape and a predetermined portion extending from one end of the coiled portion 61 at an appropriate position. A bending shaft 62 that is bent in two stages at an angle and an engagement shaft 63 that is linearly extended from the other end of the coiled portion 61 are configured. The coiled portion 61 is set so that the fixing pin N penetrates the inner surface thereof, and is pivotally supported by the base 2 as described above. The bending shaft 62 passes through the paper pressing portion 3 and abuts against the urging force receiving portion 333 of the paper pressing portion 3. When the lever 5 is locked at the binding position, the biasing force receiving portion 333 is biased downward. That is, the torsion coil spring member 6 has a function as an urging element in claims. The engagement shaft 63 has a dimension slightly smaller than the longitudinal dimension of the operation section main body 41 and is provided to extend from the lower edge portion of the second side surface section 43 of the operation section 4 to the first side surface section 42 side. It abuts against the spring stopper 45. When the lever 5 is locked at the binding position, the lever 5 is biased upward. The end of the bending shaft 62 faces the paper sheet when the paper pressing portion 3 is in contact with the paper sheet and the engaging claw 44 is not engaged with the engaging hole 22k. Inclined to the side.

  Further, in the present embodiment, a parallel link mechanism including the upright wall 22, the paper pressing portion 3, and the link members 4, 4 is formed, and the paper pressing portion 3 is interposed via the parallel link mechanism. It is movable between the binding position, which is a position where the sheet comes into contact with the paper sheet, and the open position while keeping parallel to the base body 21.

  Therefore, in this embodiment, the urging force receiving portion 333 positioned at the intermediate portion in the width direction of the paper pressing portion 3 is preferentially brought into contact with the bending shaft 62.

That is, when the lever 5 is locked at the binding position, the bending shaft 62 of the torsion coil spring member 6 is inclined upward from the second bearing hole 322 side toward the fourth bearing hole 332 side. However, the lower edge of the second bearing hole 322 is located below the lower end of the bending shaft 62, and the upper edge of the fourth bearing hole 332 is located above the upper end of the bending shaft 62. The torsion coil spring member 6 is brought into contact with only the urging force receiving surface 333a of the urging force receiving portion 333.

  With this configuration, the paper pressing portion 3 is urged in the direction toward the paper sheet P by abutting against the torsion coil spring member 6 only in the urging force receiving portion 333 located at the intermediate portion in the width direction. Therefore, the first side wall 32 positioned at the edge of the paper pressing portion 3 on the side opposite to the binding side and the second side wall 33 positioned at the edge of the binding side are biased in the direction toward the paper sheet P substantially evenly. The That is, the paper pressing unit 3 can press the paper sheet P evenly, and thus the paper sheet P can be stably held.

  Since the paper pressing portion 3 has a U-shape that opens downward in the cross-sectional view, for example, as described above, a single sheet metal material is press-molded to facilitate such a paper pressing portion 3. Can get to.

  Furthermore, since the concave portion 33b formed by reducing the width dimension is provided in the paper pressing portion 3 and the urging force receiving portion 333 is provided in the concave portion 33b, the width of the paper pressing portion 3 can be configured with a simple configuration. The urging force receiving portion 333 can be provided in the middle portion in the direction.

  Further, since the lower edge of the concave portion 33b, which is a portion in the vicinity of the urging force receiving portion 333 of the paper pressing portion 3, is formed to be above the other portion of the second side wall 33, this portion is always Separated from the paper sheet P. Therefore, it is possible to prevent the occurrence of the problem that only the portion near the urging force receiving portion 333 is in contact with the paper sheet P, and the effect that the paper pressing portion 3 presses the paper sheet P evenly is ensured. realizable.

  Since the urging force receiving portion 333 is formed with the urging force receiving surface 333a that contacts the torsion coil spring member 6, the torsion coil spring member 6 can be brought into surface contact with the urging force receiving surface 333a. Therefore, the paper pressing part 3 can hold the paper sheets more stably.

  In addition, since the urging force receiving portion 333 is provided at only one location, the paper pressing portion 3 receives the urging force at only one location in the middle in the width direction, and the paper pressing portion 3 evenly receives the paper sheets P. The effect of pressing can be more reliably realized.

  The torsion coil spring member 6 that is pivotally attached to the base 2 and has the engaging shaft 63 connected to the lever 5 and the bending shaft 62 connected to the paper pressing portion 3 is used as a biasing element. Such a binding tool 1 can be realized.

A second bearing hole 322 for allowing the torsion coil spring member 6 to pass through is provided in the first side wall 32 located on the side opposite to the binding side of the paper pressing portion 3, and the lever 5 is locked at the binding position. Since the lower end edge of the second bearing hole 322 is positioned below the lower end of the bending shaft 62 of the torsion coil spring member 6 when in contact, the biasing force receiving portion 333 is surely prioritized over other parts. The torsion coil spring member 6 can be contacted.

  The present invention is not limited to the embodiment described above.

  For example, instead of the paper pressing unit 3 in the above-described embodiment, a paper pressing unit 30 as described below may be adopted.

  As shown in FIG. 10A, the paper pressing portion 30 is formed by cutting out a concave portion 30x in the upper portion of the longitudinal central portion on the binding side, and a torsion coil spring in the concave portion 30x. A spring insertion hole 30x1 through which the bending shaft 62 of the member 6 can pass is formed, and the bending shaft 62 of the spring member 6 is brought into contact with the spring insertion hole 30x1. That is, the opening edge of the spring insertion hole 30x1 functions as an urging force receiving portion in claims.

  Further, as shown in FIG. 10B, the spring member 6 is formed in a mode in which the spring insertion hole 103 x through which the bending shaft 62 of the torsion coil spring member 6 can pass is formed in the solid paper pressing portion 103. A biasing force receiving portion having a structure in which the biasing force applying portion 621 is bent downward on the bending shaft 62 side and the biasing force applying portion 621 is in contact with the intermediate portion of the spring insertion hole 103x may be formed. .

  Further, the urging force receiving portions may be formed at a plurality of locations close to each other. For example, as shown in FIG. 10C, the cross-sectional view is as follows: the flat plate portion 3001, the first side wall 3002 that is hung from the anti-binding side edge of the flat plate portion 3001, and the binding side edge of the flat plate portion 3001. In the paper pressing unit 300 having the second side wall 3003 provided to hang down, spring support walls 3004 and 3005 are provided to extend from the first side wall 3002 and the second side wall 3003, respectively, upward and close to each other. The extended ends of the spring support walls 3004 and 3005 may be used as the biasing force receiving portion.

  In addition, various modifications may be made without departing from the spirit of the present invention.

The whole perspective view showing the file using the binding tool concerning one embodiment of the present invention. The whole perspective view which shows the binding tool which concerns on the same embodiment. The whole perspective view which shows the binding tool which concerns on the same embodiment. The top view which shows the binding tool which concerns on the embodiment, a binding side side view, and a front view. The top view and side view which show the base which concerns on the same embodiment. The figure which shows the aa cross section in FIG. The side binding side side view, top view, and binding side side view which show the paper pressing part which concerns on the same embodiment. The figure which shows the aa cross section in FIG. The figure which shows the link member which concerns on the same embodiment. Sectional drawing which shows the paper pressing part which concerns on other embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Binding tool 2 ... Base 3 ... Paper pressing part 33b ... Recessed part 321 ... 1st bearing hole 322 ... 2nd bearing hole 331 ... 3rd bearing hole 332 ... 4th bearing hole 333 ... Energizing force receiving part 333a ... Energizing force receiving Surface 4 ... Link member 5 ... Lever (operation part)
6 ... Torsion coil spring member (biasing element)
62 ... Bending shaft 63 ... Engagement shaft

Claims (8)

A base, a paper pressing portion disposed at a position where the paper sheet can be sandwiched between the base and at least both side edges in the width direction can contact the paper sheet, and the paper pressing portion is brought into contact with and separated from the base An operation unit that receives an operation force, a stopper that locks the operation unit at a binding position, and an elastic bias that urges the paper pressing unit toward the base side when the operation unit is positioned at the binding position. And a biasing force receiving portion that comes into contact with the biasing element in preference to other parts at the intermediate portion in the width direction of the paper pressing portion ,
The paper pressing portion has a U-shape opening downward in a cross-sectional view, and a concave portion formed by reducing the width dimension is provided in the paper pressing portion, and the biasing force receiving portion is formed in the concave portion. ,
In the urging force receiving portion, a contact surface that contacts the urging element is formed, and
The binding tool , wherein the biasing force receiving portion is provided by cutting and raising the side wall on the binding side of the paper pressing portion and extending to the side wall side on the anti-binding side . Binding device of claim 1, wherein the said recess is formed only in an upper portion of the paper pressing unit. The binding tool according to claim 1 or 2 , wherein a lower edge of a portion of the paper pressing portion near the biasing force receiving portion is positioned above another portion. The binding tool according to claim 1, 2 or 3 , wherein the urging force receiving portion is provided at only one place. The binding tool according to claim 1, 2, or 3 , wherein the urging force receiving portions are provided in a plurality of locations in proximity to each other. The biasing element is a torsion coil spring member pivotally attached to the base and having one end connected to the operation portion and the other end connected to the paper pressing portion. The binding tool according to 3, 4 or 5 . A spring member insertion hole for penetrating the torsion coil spring member is provided on the anti-binding side of the paper pressing portion, and a lower end of the torsion coil spring member when the operation portion is locked at the locking position. The binding tool according to claim 6, wherein a lower end edge of the spring member insertion hole is positioned downward. A base, a paper pressing portion disposed at a position where the paper sheet can be sandwiched between the base and at least both side edges in the width direction can contact the paper sheet, and the paper pressing portion is brought into contact with and separated from the base An operation unit that receives an operation force; and an urging element that urges the paper pressing unit toward the base when the operation unit is positioned at a binding position. An urging force receiving portion that comes into contact with the urging element in preference to other parts in the width direction intermediate portion is provided ,
The paper pressing portion has a U-shape opening downward in a cross-sectional view, and a concave portion formed by reducing the width dimension is provided in the paper pressing portion, and the biasing force receiving portion is formed in the concave portion. ,
In the urging force receiving portion, a contact surface that contacts the urging element is formed, and
The binding tool , wherein the biasing force receiving portion is provided by cutting and raising the side wall on the binding side of the paper pressing portion and extending to the side wall side on the anti-binding side .

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