JP2014223782A - Binder and file - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a binder and a file having the binder which can securely engage engagement parts of binding rings even with small operating force.SOLUTION: A binder can also close other binding ring 5 by operating force in a closing direction applied on the one binding ring 3 out of a plurality of binding rings in an open position. A first connecting plate 11 is formed of resin, and is integrally formed with first ring structural members 31, 51. A second connecting plate 12 is formed of resin and is integrally formed with second ring structural members 32, 52. The respective binding rings are maintained in closed positions by mutually engaging engagement parts 311, 511, 321, 521 arranged on tip ends of the first and second ring structural members in a state that the binding rings are biased in an opening direction by elastically-biasing means and are closed against biasing force.

Description

  The present invention relates to a binding tool for binding documents and the like, and a file to which the binding tool is applied.

  Conventionally, as a binding tool of this type, a base formed by attaching first and second connecting plates that face each other, a first ring constituent member supported by the first connecting plate, and the second connecting member. There has been known one comprising a pair of binding rings each having a second ring constituent member supported by a plate (see, for example, Patent Document 1 and Patent Document 2).

  The binding ring in such a binding tool is elastically biased in the opening direction with a uniform force by a leaf spring or the like disposed between the pair of binding rings. And the engaging part provided in the front-end | tip of the 1st ring structural member of each binding ring and the 2nd ring structural member by operating in the direction which closes the binding ring in an open position against this elastic biasing force They are engaged with each other so that the binding rings are held in the closed position.

  That is, an outwardly engaging portion is provided at the tip of each first ring constituent member in the binding ring, and an inwardly engaging portion is provided at the tip of the second ring constituent member. Each of the binding rings is operated in a closing direction so that the tips of the first ring component member and the second ring component member are brought into contact with each other, thereby engaging the outward engagement portion and the inward engagement portion. The joining portion engages with the elastic deformation of the member, and both the binding rings are held in the closed position. Further, the first ring constituent members having the outward engaging portions are elastically displaced in the direction of approaching each other, so that the engagement between the engaging portions can be released.

  And in the thing of such a structure, what was described in patent document 2 was able to close the other binding ring simultaneously by giving the operation force of a closing direction only to one binding ring. It has become.

  However, as described above, the operation force in the binding direction for only one binding ring is reliably transmitted to the other binding ring, and the necessary force is surely applied when the engagement portions of the binding rings are engaged with each other. In order to do this, the materials and shapes that constitute the binding tool are naturally limited. In such a current situation, there is a demand for a configuration in which the engaging portions of the binding ring can be reliably engaged even with a small operating force.

Japanese Patent No. 2814957 JP 2012-187839 A

  The present invention pays attention to such a current situation, and provides a binding tool capable of reliably engaging the binding portions of the binding ring even with a small operating force, and a file having the binding tool. It is aimed.

  In order to achieve such an object, the present invention takes the following measures.

  The binding tool according to claim 1, wherein the base is formed by pivotally supporting the first and second connecting plates butted against each other on the base body, the first ring constituent member supported by the first connecting plate, and the A plurality of binding rings each having a second ring component supported by the second connecting plate, and a closing direction applied to one of the binding rings in the open position A binding tool that can also close other binding rings by the operating force of the first ring component member and the second ring component member in both of the plurality of binding rings. In the spaced open position, the separation distance between the tip of the first ring component in the other binding ring and the tip of the second ring component is such that the first ring component in the one binding ring Tip and second The first connecting plate is made of resin and is integrally formed with the first ring constituent member, and is set to be shorter than the distance from the tip of the ring constituent member. The connecting plate is made of resin and is integrally formed with the second ring component, and each binding ring is biased in the opening direction by an elastic biasing means and resists the biasing force. In the closed state, the engaging portions provided at the tips of the first and second ring constituent members engage with each other and are held at the closed position.

  According to a second aspect of the present invention, in the configuration according to the first aspect, the engaging operation between the engaging portions is performed by the first and second ring constituent members and the first and second connecting plates. This is done using the overall deflection.

  According to a third aspect of the present invention, there is provided the binding tool according to the first or second aspect, wherein a thickness dimension of one end portion of the connecting plate to which the one binding ring in the first and second connecting plates is connected is set to one end portion of the connecting plate. It is formed to be thicker than other parts.

  A binding tool according to a fourth aspect is the configuration according to the third aspect, wherein one end of the connection plate on the upper surface side of the first and second connection plates and a portion other than the one end of the connection plate, A stepped portion is formed.

  According to a fifth aspect of the present invention, in the configuration according to the third or fourth aspect, the one end portion of the connection plate of the first connection plate forms an accommodation space for arranging the elastic urging means on the lower surface side thereof. It is what you are doing.

  According to a sixth aspect of the present invention, in the configuration according to the first, second, third, fourth, or fifth aspect, the elastic biasing means is provided between the base body and the first connecting plate in the vicinity of the one binding ring. A first spacer member that is in contact with the lower surface of the second connecting plate in the vicinity of the one binding ring when the base main body is held in the closed position. And a second spacer member in contact with the lower surfaces of the first and second connecting plates in the vicinity of the other binding ring.

  The binding tool according to claim 7 is the configuration according to claim 1, 2, 3, 4, 5 or 6, wherein the plurality of binding rings are two binding rings, and the first binding ring is the first binding ring. The outward engagement portion provided on the ring component member and the outward engagement portion provided on the first ring component member in the other binding ring are directed in directions opposite to each other, The inward engaging portion provided in the second ring constituent member in the one binding ring and the inward engaging portion provided in the second ring constituent member in the other binding ring The engaging portions are facing each other and moving the first ring constituent member in the one binding ring and the first ring constituent member in the other binding ring in directions close to each other, respectively. same One in which engagement is to be released.

  A binding tool according to an eighth aspect is the configuration according to the first, second, third, fourth, fifth, sixth, or seventh aspect, wherein the base main body is engaged with the engaging portions of the first and second ring constituent members. An allowable shaft support portion that supports the shaft while allowing temporary movement of any one of the first and second connecting plates caused by a temporary separation operation in a direction intersecting the operation direction at the time of joining. It will be.

  A file according to claim 9 is provided with the binding tool according to any one of claims 1 to 8 on a cover body.

  The file according to claim 10 is configured such that the binding tool according to any one of claims 1 to 8 is placed on a cover body in which a use direction is clearly set so that one binding ring is positioned on the near side of the other binding ring. It is attached.

  Here, “use direction” means the use direction as seen from the user / user. The “front” is a concept viewed from the user / user.

  ADVANTAGE OF THE INVENTION According to this invention, even if it is a small operation force, the file which has a binding tool and the binding tool which the engaging parts of all the binding rings can engage reliably can be provided.

The external view which concerns on one Embodiment of this invention. Other external views. The exploded plan view concerning the embodiment. FIG. FIG. 5 is a cross-sectional view taken along line AA according to FIG. 4. The BB sectional view taken on the line. The CC sectional view taken on the line. Operation | movement explanatory drawing which concerns on the same embodiment. Action explanatory drawing corresponding to FIG. 7 which concerns on FIG. Operation | movement explanatory drawing which concerns on the same embodiment. Explanatory drawing corresponding to FIG. 7 which concerns on FIG. Operation | movement explanatory drawing which concerns on the same embodiment. Same as above. The exploded plan view of the binding tool which shows other embodiment of this invention. The top view of the binding tool in the embodiment. The left view of the binding tool in the embodiment. The right view of the binding tool in the embodiment. XX sectional drawing in FIG. The YY sectional view taken on the line in FIG. ZZ sectional drawing in FIG. The right view for demonstrating one binding element (a 1st connection board and a 1st ring structural member) in the embodiment. The left view for demonstrating the other binding element (2nd connection board and 2nd ring structural member) in the embodiment. The left view for demonstrating the base main body in the embodiment.

  Hereinafter, an embodiment of the present invention will be described with reference to FIGS.

  In the present embodiment, the present invention is applied to the binding tool G attached to the file F and the spine cover H2 of the cover body H thereof.

  The file F includes a cover body H having a front cover H1, a back cover H2, and a back cover H3. The direction of use of the file F is clearly set by printing or sticker (not shown) applied to the cover body H.

  The binding tool G includes a base 1 that pivotally supports the first and second connecting plates 11 and 12 butted against each other, first ring constituent members 31 and 51 supported by the first connecting plate 11, and A plurality of, i.e., two binding rings 3, 5 each having a second ring component 32, 52 supported by the second connecting plate 12, and one of these binding rings 3, 5. The other binding ring 5 can also be closed by the operating force applied to the binding ring 3 in the closing direction.

  In other words, the binding tool G in the present embodiment is capable of binding mainly two-hole paper (not shown) by the two binding rings 3 and 5 of the one binding ring 3 and the other binding ring 5. It is what. Hereinafter, each part will be described.

  The base 1 includes a base body 13 made of, for example, a synthetic resin, and first and second connecting plates 11 and 12 that are pivotally supported on the base body 13 at a plurality of locations in the longitudinal direction.

  The base body 13 has attachment holes 131 for attaching to the cover body H at both ends in the longitudinal direction, four shaft support portions 132 for supporting the first and second connection plates, and the first connection plate. And a spring mounting portion 133 for mounting a coil spring, which is an elastic biasing means (not shown) for biasing to a position, and closes the first and second connecting plates 11 and 12 that face each other inside. It has a shape that can form a space for accommodating at the same position. A shaft support portion 132 that rotatably supports the first and second connecting plates 11 and 12 provided on both side edges of the base body 13 includes an end shaft support portion 134, two intermediate shaft support portions 135, and An allowable shaft support 136 is provided. The allowable shaft support 136 will be described in detail later.

  Note that the upper and lower protrusions t1 and t2 for engagement are provided on the inner edge portions of the first and second connecting plates 11 and 12, that is, the butt end edges 111 and 121, respectively. In this embodiment, two upward projections t1 and one downward projection t2 projecting from the edge 111 of the first coupling plate 11 in the vicinity of one binding ring 3 are the second coupling plate 12. The two downward projections t2 and the one upward projection t1 projecting from the end edge 121 of the two are fitted with no gap at the closed position and are moved relative to each other so that only the tip portion is caught at the open position. Engagement of the two connecting plates 11 and 12 is ensured while interlocking the operation of the two connecting plates 11 and 12.

  In this embodiment, the binding rings 3 and 5 are formed integrally with the first and second connecting plates 11 and 12, and are indirectly attached in the opening direction by the elastic biasing means. It is energized. Specifically, the first connecting plate 11 is elastically biased in the opening direction at a portion located in the vicinity of one binding ring 3 provided with the spring mounting portion 133 of the base body 13, and this elastic Similarly, the second connecting plate 12 is also urged in the opening direction through the upward projection t1 and the downward projection t2, so that the second connecting plate 11 and the inner edge 111 side of the first connecting plate 11 are connected to the second connecting plate 12 in the same way. Both the inner edge 121 side of the plate 12 are elastically biased upward.

  The first connecting plate 11 supports the first ring constituent member 31 of one binding ring 3 at one end and the first ring constituent member 51 of another binding ring 5 at the other end. Specifically, it is generally strip-shaped. The first connecting plate 11 is made of resin like the base body 13. The first connecting plate 11 is integrally formed with the ring constituent members 31 and 51 by an appropriate method. More specifically, the ring constituent members 31 and 51 formed on the first connecting plate 11 are provided with different relative angles. In the present embodiment, the first ring constituent member 51 of the other binding ring 5 is tilted toward the closed position by about 5 ° relative to the first ring constituent member 31 of one binding ring 3.

  As shown in FIG. 3, the first connecting plate 11 has rotating shafts 112 that are pivotally supported on the base body 13 in a total of four locations in the longitudinal direction. The rotary shaft 112 has a first end shaft 114, two intermediate shafts 115, and the other end shaft 116 from the lower side in the figure.

  The second connecting plate 12 supports the second ring constituent member 32 of one binding ring 3 at one end and the second ring constituent member 52 of the other binding ring 5 at the other end. Specifically, it is generally strip-shaped. The second connecting plate 12 is also made of resin. The second connecting plate 12 is integrally formed with the ring constituent members 32 and 52 by an appropriate method. More specifically, the ring constituent members 32 and 52 formed on the second connecting plate 12 are provided with different relative angles. In this embodiment, in order to form the second ring constituent member 52 of the other binding ring 5 other than the second ring constituent member 32 of one binding ring 3 by tilting toward the closed position by about 5 °, The one connecting plate 11 and the second connecting plate 12 are formed by inclining a portion between the one binding ring 3 and the other binding ring 5.

  As shown in FIG. 3, the second connecting plate 12 has rotating shafts 122 that are pivotally supported on the base body 13 in a total of four locations in the longitudinal direction. The rotating shaft 122 has a first end shaft 124, two intermediate shafts 125, and the other end shaft 126 from the lower side in the figure.

  Therefore, in the present embodiment, as shown in FIG. 1, in the open position in which the binding rings 3 and 5 are open, the front end portion 51 s of the first ring component member 51 in the other binding ring 5 and the first The separation distance between the front end portion 52s of the second ring constituent member 52 and the front end portion 31s of the first ring constituent member 31 and the front end portion 32s of the second ring constituent member 32 in one binding ring 3 Is also set short. Therefore, as shown in FIG. 4 in particular, in the state where the engaging portions 511 and 521 of the two ring constituting members 51 and 52 constituting the other binding ring 5 are engaged with each other, the two ring constitutions constituting the one binding ring 3 The tip portions 31s and 32s of the members 31 and 32 are in a state of being separated by a predetermined distance.

  Each of the binding rings 3 and 5 is urged in the opening direction by an elastic urging portion (not shown) provided in the vicinity of the one binding ring 3 and is closed against the urging force. The engaging portions 311, 511, 321, and 521 provided at the tips of the second ring constituent members 31, 51, 32, and 52 are engaged with each other and held in the closed position. More specifically, each of the binding rings 3, 5 includes the first ring constituent members 31, 51 in which the base end portions 312, 512 are positioned at the end of the first connection plate 11, and the second connection plate 12. Second ring constituent members 32 and 52 having proximal end portions 322 and 522 positioned at the end portions are provided.

  The binding rings 3 and 5 have a configuration called a so-called O-ring. That is, in the present embodiment, the first ring constituent members 31 and 51 and the second ring constituent members 32 and 52 are entirely curved, but of course, the second ring constituent members 32 and 52 are substantially linear. A so-called D-ring may be adopted by providing a straight line formed in a curved line and a curved part formed in a curved shape.

  Outward engaging portions 311 and 511 are provided at the distal ends of the first ring constituent members 31 and 51, and inward engaging portions 321 are provided at the distal ends of the second ring constituent members 32 and 52. 521 is provided, and the distal end portions of the first ring constituent members 31 and 51 and the distal end portions of the second ring constituent members 32 and 52 are brought into contact with each other so that the outward engaging portions 311 and 511 are inwardly facing each other. The binding portions 321 and 521 are engaged to hold the binding rings 3 and 5 in the closed position.

  Specifically, the outward engaging portions 311 and 511 are provided with protrusions 311a and 511a that protrude outward, that is, outward in the longitudinal direction of the binding tool G. The inward engagement portions 321 and 521 are provided with recesses 321a and 521a that can accommodate the protrusions 311a and 511a on the inner side.

  In a state where the tips of the first and second ring constituting members 31, 51, 32, 52 are engaged with each other, the protrusions 311a, 511a of the outward engaging portions 311 and 511 are inwardly engaging portions 321. The first ring constituent members 31, 51 are engaged with the butted ends of the first and second ring constituent members 31, 51, 32, 52 when engaged. Guide inclined surfaces 311c, 511c, 321c, and 521c are formed to guide the second ring component members 32 and 52 apart from each other.

  An outward engagement portion 311 provided in the first ring constituent member 31 in one binding ring 3 and an outward engagement portion 511 provided in the first ring constituent member 51 in the other binding ring 5. Are facing opposite directions. Further, an inward engagement portion 321 provided in the second ring constituent member 32 in one binding ring 3 and an inward engagement portion provided in the second ring constituent member 52 in the other binding ring 5. 521 faces the direction facing each other. Therefore, by moving the first ring constituent member 31 in one binding ring 3 and the first ring constituent member 51 in the other binding ring 5 in the approaching direction, the engaging portions 311, 511, 321, Engagement between 521 is released.

  The binding tool G configured as described above is attached to the spine cover H2 of the file F. Then, one of the two binding rings 3 and 5 is attached to the file F so that one binding ring 3 is positioned on the near side as viewed from the user of the file, and the attachment is provided on the base body 13. This is performed by a rivet 138 inserted through the hole 131. In this attached state, the second ring constituent members 32 and 52 are positioned on the right side of the first ring constituent members 31 and 51.

  If it is a thing of such a structure, in the state in which engagement between the engaging parts 311, 511, 321, 521 of the first and second ring constituting members 31, 51, 32, 52 is released, it is elastic Since the first and second connecting plates 11 and 12 are elastically biased by the action of a biasing means, that is, a torsion coil spring (not shown) attached between the base body 13 and the first connecting plate 11, the binding ring 3 and 5 are maintained in the open position which is an open state as shown in FIG. When the first and second ring constituent members 31 and 32 constituting one binding ring 3 are operated in the approaching direction from the opened state as shown in FIGS. The binding rings 3 and 5 connected to each other by the second connecting plates 11 and 12 operate in the closing direction against the urging force of the elastic urging portion, and finally, after the state shown in FIG. As shown in FIG. 13, the outwardly engaging portions 311 and 511 of the first ring constituting members 31 and 51 of the binding rings 3 and 5 and the inwardly engaging portions 321 of the second ring constituting members 32 and 52. 521 engages. Therefore, after the engagement, both the binding rings 3 and 5 are maintained in the closed position even when the hands are released from the first and second ring constituent members 31 and 32.

  The operation when the outward engaging portions 311 and 511 of the first ring constituent members 31 and 51 are engaged with the inward engaging portions 321 and 521 of the second ring constituent members 32 and 52 is described in detail. Then, it is as follows.

  From the state in which the binding rings 3 and 5 are in the open position, the first and second ring constituting members 31 and 32 constituting one binding ring 3 as shown in FIGS. When the operating force in the closing direction is applied by fingers, both binding rings 3 and 5 connected to each other by the first and second connecting plates 11 and 12 close in the closing direction against the biasing force of the elastic biasing portion. The first and second ring constituent members 51 and 52 of the other binding ring 5 are connected to the tip portions 51 s and 52 s of the first and second ring constituent members 31 and 32 of the one binding ring 3. The tip portions 31s and 32s come into contact with each other before they come into contact with each other. That is, the first and second ring constituent members 51 and 52 of the other binding ring 5, which is a binding ring that is located away from the one binding ring 3 to which the operation force in the closing direction is directly applied by fingers. The tip portions 51 s and 52 s push in the closing direction prior to the tip portions 31 s and 32 s of the first and second ring constituting members 31 and 32 of one binding ring 3 abutting and pressing each other. It will be.

  Next, at the stage where the tip portions of the first ring constituent members 31 and 51 and the tip portions of the second ring constituent members 32 and 52 face each other, the guide inclined surfaces 311c of the outward engaging portions 311 and 511 are provided. 511c and the guide inclined surfaces 321c and 521c of the inward engagement portions 321 and 521 come into contact with each other. When the operating force in the closing direction is further applied to the ring component members 31, 51, 32, 52 from this state, the outward engaging portions 311, 511 are guided by the guiding action of the guide inclined surfaces 311c, 511c, 321c, 521c. The first ring constituent members 31, 51 having the inner ring are temporarily elastically displaced inward and the second ring constituent members 32, 52 having the inward engaging portions 321, 521 are temporarily Will be elastically displaced outward. Then, the protrusions 311a and 511a of the outward engaging portions 311 and 511 are fitted into the concave portions 321a and 521a of the inward engaging portions 321 and 521, and the engagement is completed. As a result, both the binding rings 3 and 5 are held in the closed position even if the hand is released from one binding ring 3.

  Thus, in the binding tool G according to the present embodiment, the base 1 intersects the operation direction when the engaging portions 511 and 521 of the first and second ring constituting members 51 and 52 are engaged with each other. The first and second connecting plates 11 and 12 that are caused by the temporary separation operation of the first and second connecting plates 11 and 12 have an allowable shaft support portion 136 that supports the shaft while allowing temporary movement of the other end shafts 116 and 126.

  The allowable shaft support 136 is provided at the longitudinal end of the base body 13 in the vicinity of the other binding ring 5. One direction of the other end shaft 116 of the first connecting plate 11, that is, the first retracting surface 136 a that allows movement upward in the figure, and the one direction of the other end shaft 126 of the second connecting plate 12 are And a second retracting surface 136b that allows downward movement on the opposite side. In addition to the first retracting surface 136a and the second retracting surface 136b, the allowable shaft support 136 includes a first prohibiting surface 136c that prohibits the downward movement of the other end shaft 116 of the first connecting plate 11; The second connecting plate 12 has a second prohibiting surface 136d that prohibits the other end shaft 126 from moving upward. The retraction allowing portion 136 includes a first retraction surface 136a and the first prohibition surface 136c on the first connecting plate 11 side, a second retraction surface 136b and the second prohibition surface 136d on the second connection plate 12 side. Each of the other end shafts 116 and 126 is ensured to move smoothly by continuously forming an oblong shape in sectional view.

  That is, the above engaging operation utilizes temporary and partial deflection in the longitudinal direction of the first and second connecting plates 11 and 12 supporting the first and second ring constituting members 51 and 52. Done. That is, the inclining guides 311c and 511c of the outward engagement portions 311 and 511 provided on the first ring constituent members 31 and 51 and the inward engagement provided on the second ring constituent members 32 and 52, respectively. When both ring constituent members 31 and 32 in one binding ring 3 are further operated in the closing direction while the guide inclined surfaces 321c and 521c of the joint portions 321 and 521 are in contact with each other, the guide inclined surfaces 311c, 511c and 321c are operated. As a result of the guiding action of 521c, the two first ring constituent members 31, 51 fall in the direction of approaching, and the two second ring constituent members 32, 52 cause the action of falling in the direction of separating from each other. As shown in FIG. 11, the operation of tilting in the direction in which the two first ring constituent members 31 and 51 come together is that the first connecting plate 11 is moved upward in the vicinity of the first ring constituent member 51. It is caused by bending more than the vicinity of the component member 31, that is, by bending the position of the other end shaft 116 at the longitudinal end portion of the first connecting plate 11 toward the first retracting surface 136 a. The The operation in which the two second ring constituent members 32 and 52 are tilted in the direction away from each other is such that the second connecting plate 12 is lower in the vicinity of the second ring constituent member 52 than in the vicinity of the second ring constituent member 32. This is caused by bending, that is, by bending the position of the other end shaft 126 at the longitudinal end portion of the second connecting plate 12 in the direction of downward displacement toward the second retracting surface 136b. As described above, the bending operation of the first and second connecting plates 11 and 12 shown in FIG. 11 occurs, so that the other binding ring 5 is not directly touched by the hand, and the first binding ring 3 starts from the first binding ring 3. The closed position can be easily achieved by an indirect and small operating force applied through the second connecting plates 11 and 12.

  While the above operation is performed lightly and smoothly, rattling of other binding rings 5 is effectively prohibited in the closed position. That is, the allowable shaft support portion 136 includes a first prohibiting surface 136c that prohibits the downward movement of the other end shaft 116 of the first connecting plate 11 and the other end shaft 126 of the second connecting plate 12. Since the second binding surface 136d that prohibits the upward movement is provided, when the external force that moves the other binding ring 5 in the closed position is applied, the other end shaft 126 contacts the second prohibition surface 136d. Touch. When the binding ring 5 in the closed position is subjected to an external force that moves downward, the other end shaft 116 comes into contact with the first forbidden surface 136c. As a result, the other binding ring 5 in the closed position can bind the paper sheets without causing rattling.

  By setting it as the above structures, the binding tool G which concerns on this embodiment is the 1st, 2nd connection board 11 which is supporting the 1st, 2nd ring structural members 31, 51, 32, 52. The other end shafts 116 and 126, which are the 12 axes, are configured so that the positions themselves move, so that the first and second connecting plates 11 and 12 can be easily deformed even with a small force. As a result, even if the material constituting the binding tool G is a material that cannot produce a large elastic repulsive force, such as a resin material, the first and second changes can be made while minimizing the change in shape from the conventional one. The engaging parts 311, 511, 321, 521 of the ring constituent members 31, 51, 32, 52 are engaged with each other with a small operating force.

  Further, in the present embodiment, the allowable shaft support portion 136 includes a first retracting surface 136a that allows the first connecting plate 11 to move upward in the other end shaft 116, and the second connecting plate 12. By providing the second retracting surface 136b that allows the end shaft 126 to move downward, the engaging portions 311, 511, 321 of the first and second ring constituent members 31, 51, 32, 52 are provided. The temporary separation operation in the direction intersecting the operation direction when the 521s are engaged with each other is performed more smoothly.

  In particular, in the present embodiment, in order to achieve both the smooth engagement from the open position to the closed position and the positioning of the first and second ring constituent members 31, 51, 32, 52 in the closed position, the allowable shaft support portion 136, the first prohibiting surface 136c for prohibiting the downward movement of the other end shaft 116 of the first connecting plate 11, and the upward movement of the other end shaft 126 of the second connecting plate 12. And a second prohibiting surface 136d for prohibiting. Accordingly, during the operation, the movement of the other end shafts 116 and 126 is promoted, but the movement of the other end shafts 115 and 126 in the closed position is prohibited, so that rattling of the other binding rings 5 in the closed position is effective. To avoid.

  In the present embodiment, the first ring constituting member 31 in the plurality of binding rings 3 and 5 can be easily closed without performing the operation of closing the plurality of binding rings 3 and 5. , 51 at the open position where the tip portions 31s, 51s of the second ring component members 32, 52 are spaced apart from each other, and the tip portions 51s of the first ring component member 51 in the other binding ring 5. The separation distance between the first ring component member 31 and the second ring component member 32 in the first binding ring 3 is such that the distance between the second ring component member 52 and the tip portion 52 s is the separation distance. By setting the distance shorter than the distance, the other binding ring is operated by the operation force in the closing direction applied to one of the binding rings 3 and 5 in the open position. So that it is possible to also close.

  In this embodiment, the allowable shaft support 136 is provided in the vicinity of the other binding ring 5 to which no direct operating force is applied at this time, so that the operating force is transmitted only indirectly, not directly. The structure which can also close the other binding ring 5 reliably is implement | achieved.

  Then, the distal end portion 51s of the first ring constituting member 51 and the second ring in the other binding ring 5 while smoothly browsing the paper sheets in the closed position and adding and removing the paper sheets in the open position. The separation distance between the front end portion 52s of the constituent member 52 is shorter than the separation distance between the front end portion 31s of the first ring constituent member 31 and the front end portion 32s of the second ring constituent member 32 in the one binding ring 3. In order to realize the configuration to be set, in the present embodiment, the first and second ring constituent members 31 and 32 constituting the one binding ring 3 and the first and second binding rings 5 constituting the first and second binding rings 5, respectively. While making the 2nd ring structural members 51 and 52 into the same shape, said 1st and 2nd connection plates 11 and 12 have the site | part between the said 1st binding ring 3 and the said other binding rings 5. As shown in FIG. It has a deliberately tilted structure.

  In the binding tool G according to the present embodiment, the first and second connecting plates 11 and 12 are made of resin, and the operating force transmitted to the one binding ring 3 side than the metal binding tool is transmitted. Although it is difficult to transmit to the other binding ring 5 side, as described above, the engaging portions of the first and second ring constituent members 31, 32, 51, 52 can be surely made with a small operating force with respect to one binding ring 3. 311, 511, 321 and 521 are engaged with each other.

  Although one embodiment of the present invention has been described above, the specific configuration of each part is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

  For example, in the above-described embodiment, an aspect in which the allowable shaft support portion is provided on each of the shafts of both connection plates is disclosed. However, the allowable shaft support portion may be provided only on one of the connection plate sides. Moreover, although the aspect which provided the allowable shaft support part in the vicinity of the other binding ring was disclosed in the said embodiment, of course, you may provide in the vicinity of one binding ring. Thereby, the user can be in the closed position with a lighter operational feeling. In addition, specific modes such as the specific number, size, and shape of the binding ring are not limited to those of the above-described embodiment, and various modes including the existing ones can be applied.

  Next, another embodiment of the present invention will be described with reference to FIGS. Here, in the other embodiment, the same or corresponding components as those of the above-described one embodiment will be described with the same reference numerals, and detailed description may be omitted or simplified.

The other embodiment is a case where the present invention is applied to the binding tool G attached to the back cover of the file and its cover body, similarly to the above-described one embodiment. (In other embodiments, the cover body is not shown.)
The file includes a binding tool G and a cover body having a front cover, a back cover, and a back cover. The direction of use of this file is clearly set by printing or stickers (not shown) applied to the cover body. Thus, the binding tool G is attached to the cover body so that one binding ring 3 is positioned on the front side of the other binding ring 5.

  The binding tool G includes a base 1 formed by pivotally supporting the first and second connecting plates 11 and 12 butted against each other on the base main body 13, and a first ring configuration supported by the first connecting plate 11. A plurality of binding rings 3 and 5 each including members 31 and 51 and second ring constituent members 32 and 52 supported by the second connecting plate 12, and these bindings in the open position. The other binding ring 5 can be closed by an operation force in the closing direction applied to one binding ring 3 of the rings 3 and 5. In other words, the binding tool G in the present embodiment is capable of binding mainly two-hole paper (not shown) by the two binding rings 3 and 5 of the one binding ring 3 and the other binding ring 5. It is what. The first connecting plate 11 is made of resin and is integrally formed with the first ring constituent members 31 and 51, the second connecting plate 12 is made of resin, and the second The ring component members 32 and 52 are integrally formed.

  Hereinafter, the binding tool G which is other embodiment is explained in full detail.

  The base 1 includes a base body 13 made of synthetic resin, and first and second connecting plates 11 and 12 that are pivotally supported on the base body 13 at a plurality of locations in the longitudinal direction.

  The base body 13 has attachment holes 131 for attaching to the cover body H at both ends in the longitudinal direction, four shaft support portions 132 for supporting the first and second connection plates, and the first connection plate. And a spring mounting portion 133 for mounting a coil spring 6 that is an elastic biasing means for biasing to a position. , 12 can be formed to form a space for accommodating them in the same position in the closed position. A shaft support portion 132 for rotatably supporting the first and second connecting plates 11 and 12 provided on both side edges of the base body 13 includes an end shaft support portion 134 and two intermediate shaft support portions from below in the figure. 135 and an end pivot support 139. In this embodiment, the end shaft support portions 134 and 139 support the one end shafts 114 and 124 and the other end shafts 116 and 126 of the first and second connecting plates 11 and 12 in a manner that suppresses vertical movement. .

  The base body 13 is a first spacer member with which the lower surface of the second coupling plate 12 abuts in the vicinity of the first binding ring 3 when the binding rings 3 and 5 are held in the closed position. 7a and a second spacer member 7b with which the lower surfaces of the first and second connecting plates 11 and 12 in the vicinity of the other binding ring 5 abut. More specifically, the base body 13 is disposed at both ends in the longitudinal direction, that is, at positions sandwiching the first and second connecting plates 11 and 12, and the first end support portions 134 and 139 are formed inside. The base body located between the second base body end portions 13a and 13b and the first and second base body end portions 13a and 13b and below the first and second connecting plates 11 and 12 An intermediate portion 13c, and the first and second spacer members 7a and 7b project from the base body intermediate portion 13c toward the first and second connecting plates 11 and 12, respectively. Yes. The first spacer member 7a is disposed at a position adjacent to the first base body end portion 13a. The second spacer member 7b is disposed at a position adjacent to the second base main end portion 13b. The first spacer member 7a is formed in a vertically long rectangular shape in plan view. The second spacer member 7b is formed in a substantially square rectangular shape in plan view.

  Lower protrusions t3 for engaging with the second connecting plate 12 are provided at two locations on the inner edge portion of the first connecting plate 11, that is, the butted end edge 111. The lower protrusion t3 is positioned below the upper protrusion t4 described later, and is provided at the intermediate portion in the longitudinal direction of the first connecting plate 11 so as to protrude toward the second connecting plate 12 side. Upper protrusions t4 that engage with the lower protrusions t3 of the first connecting plate 11 are provided at two locations corresponding to the lower protrusions t3 on the inner edge portion of the second connecting plate 12, that is, the butting edge 121. The upper protrusion t <b> 4 protrudes toward the first connecting plate 11 at the middle portion in the longitudinal direction of the second connecting plate 12. In this embodiment, the lower protrusion t3 having the claw t31 is engaged with the upper protrusion t4 having a long hole (not shown) so as not to be separated from each other. The claw t31 of the lower protrusion t3 is located in the long hole that penetrates in the longitudinal direction of each connecting plate 11, 12 and extends in the short direction of each connecting plate 11, 12. The first and second connecting plates 11 and 12 can move relative to each other by the engagement between the lower protrusion t3 and the upper protrusion t4, that is, the engagement between the claw t31 and the long hole. At the position, only the tip portions of the lower protrusion t3 and the upper protrusion t4 are engaged with each other. In this way, the interlocking of the two connecting plates 11 and 12 is ensured while the operations of the two connecting plates 11 and 12 are interlocked.

  Each of the binding rings 3 and 5 is made of a synthetic resin, and is formed integrally with the first and second connecting plates 11 and 12 with resin. Each binding ring 3, 5 is indirectly biased in the opening direction by a coil spring 6. The coil spring 6 is a so-called torsion coil spring, and is disposed between the base body 13 and the first connecting plate 11 in the vicinity of the one binding ring 3. Specifically, the first connecting plate 11 is connected to one end of the coil spring 6 at a portion located in the vicinity of one binding ring 3 provided with the spring mounting portion 133 of the base body 13 and elastically opens in the opening direction. It is energized. The other end of the coil spring 6 is connected to the upper surface of the base main body intermediate portion 13 c in the base main body 13. When the engagement of the binding rings 3 and 5 is released, the first coupling plate 11 receives the direct elastic biasing force from the coil spring 6 and rotates around the rotation shaft 112. Similarly, The second connecting plate 12 having the upper protrusion t4 engaged with the lower protrusion t3 is also indirectly biased in the opening direction and rotates around the rotation shaft 122. That is, the coil spring 6 elastically urges both the inner edge 111 side of the first connecting plate 11 and the inner edge 121 side of the second connecting plate 12 in the upward direction.

  The first connecting plate 11 supports the first ring constituent member 31 of one binding ring 3 at one end and the first ring constituent member 51 of another binding ring 5 at the other end. Specifically, it is generally strip-shaped. The first connecting plate 11 is made of resin like the base body 13. The first connecting plate 11 is integrally formed of synthetic resin together with the ring constituent members 31 and 51 by an appropriate method. More specifically, the ring constituent members 31 and 51 formed on the first connecting plate 11 are provided with different relative angles.

  The thickness dimension of the connecting plate one end portion 11a to which the one binding ring 3 in the first connecting plate 11 is connected is thicker than other portions 11b other than the connecting plate one end portion 11a. A step portion 11c is formed between the one end portion 11a of the connecting plate on the upper surface side of the first connecting plate 11 and a portion 11b other than the one end portion 11a of the connecting plate. Further, the connecting plate one end portion 11a of the first connecting plate 11 forms an accommodation space sp for arranging the coil spring 6 on the lower surface side thereof.

  In the present embodiment, the angles of the first connecting plate 11 and the ring component members 31 and 51 are set to be substantially the same. Specifically, the angle between the upper surface 11as of the portion of the first connecting plate 11 to which the first ring constituting member 31 is connected (that is, the connecting plate one end portion 11a) and the first ring constituting member 31, and the first The upper surface 11bs of the part to which the second ring constituent member 51 in the connecting plate 11 is connected (that is, the other part 11b other than the connecting plate one end 11a in the first connecting plate 11) and the first ring constituent member 51 The angles are set to be substantially the same. Note that the first ring constituent member 51 of the other binding ring 5 is tilted toward the closed position by about 6 ° from the first ring constituent member 31 of one binding ring 3. Both first ring constituent members 31 and 51 have the same shape.

  The first connecting plate 11 has rotating shafts 112 that are pivotally supported by the base body 13 in a total of four locations in the longitudinal direction. The rotary shaft 112 has a first end shaft 114, two intermediate shafts 115, and the other end shaft 116 from the lower side in the figure.

  The second connecting plate 12 supports the second ring constituent member 32 of one binding ring 3 at one end and the second ring constituent member 52 of the other binding ring 5 at the other end. Specifically, it is generally strip-shaped. The second connecting plate 12 is also made of resin. The second connecting plate 12 is integrally formed of synthetic resin with the ring constituent members 32 and 52 by an appropriate method. More specifically, the ring constituent members 32 and 52 formed on the second connecting plate 12 are provided with different relative angles.

  The thickness dimension of the connecting plate one end portion 12a to which the one binding ring 3 in the second connecting plate 12 is connected is thicker than other portions 12b other than the connecting plate one end portion 12a. And the level | step-difference part 12c is formed between the site | parts 12b other than the said connection plate one end part 12a and the said connection plate one end part 12a in the upper surface side of the said 1st connection plate 12. As shown in FIG.

  In the present embodiment, the angles of the second connecting plate 12 and the ring constituent members 32 and 52 are set to be substantially the same. Specifically, the angle between the upper surface 12as of the portion of the second connecting plate 12 to which the second ring constituent member 32 is connected (that is, the connecting plate one end portion 12a) and the first ring constituent member 32, and the second The upper surface 12bs of the part to which the second ring constituent member 52 in the connecting plate 12 is connected (that is, the other part 12b other than the connecting plate one end portion 12a in the second connecting plate 12) and the second ring constituent member 52 The angles are set to be substantially the same. The second ring constituent member 52 of the other binding ring 5 is formed to be inclined toward the closed position by about 6 ° from the second ring constituent member 32 of one binding ring 3. The shapes of the second ring component members 32 and 52 are set to be the same.

  That is, in the present embodiment, in order to form the second ring constituent member 52 of the other binding ring 5 with the second ring constituent member 32 of one binding ring 3 inclined toward the closed position by about 6 °. The first connecting plate 11 and the second connecting plate 12 are formed by inclining a portion between one binding ring 3 and another binding ring 5.

  The second connecting plate 12 has rotating shafts 122 that are pivotally supported by the base body 13 in a total of four locations in the longitudinal direction. The rotating shaft 122 has a first end shaft 124, two intermediate shafts 125, and the other end shaft 126 from the lower side in the figure.

  In another embodiment, in the open position (see FIG. 1) in which each binding ring 3, 5 is open, the distal end portion 51 s of the first ring constituent member 51 and the second ring in the other binding ring 5. The separation distance between the front end portion 52s of the constituent member 52 is set shorter than the separation distance between the front end portion 31s of the first ring constituent member 31 and the front end portion 32s of the second ring constituent member 32 in one binding ring 3. Has been. Therefore, in a state where the engaging portions 511 and 521 of the two ring constituting members 51 and 52 constituting the other binding ring 5 are engaged with each other, the distal end portions 31s of the both ring constituting members 31 and 32 constituting the one binding ring 3 are used. , 32s are separated by a predetermined distance.

  Each binding ring 3, 5 is biased in the opening direction by a coil spring 6 provided in the vicinity of one binding ring 3 and closed against the biasing force in the first and second ring configurations. The engaging portions 311, 511, 321, 521 provided at the tips of the members 31, 51, 32, 52 are engaged with each other and held in the closed position. More specifically, each of the binding rings 3, 5 includes the first ring constituent members 31, 51 in which the base end portions 312, 512 are positioned at the end of the first connection plate 11, and the second connection plate 12. Second ring constituent members 32 and 52 having proximal end portions 322 and 522 positioned at the end portions are provided.

  The binding rings 3 and 5 have a configuration called a so-called O-ring.

  The first ring constituent members 31 and 51 and the second ring constituent members 32 and 52 have a curved shape as a whole. In addition, it is good also as a structure of the binding ring called what is called a D ring by providing the 2nd ring structural member 32 and 52 with the straight line formed in the substantially linear shape, and the curved part formed in the curved shape. Of course.

  Outward engaging portions 311 and 511 are provided at the distal ends of the first ring constituent members 31 and 51, and inward engaging portions 321 are provided at the distal ends of the second ring constituent members 32 and 52. 521 is provided, and the distal end portions of the first ring constituent members 31 and 51 and the distal end portions of the second ring constituent members 32 and 52 are brought into contact with each other so that the outward engaging portions 311 and 511 are inwardly facing each other. The binding portions 321 and 521 are engaged to hold the binding rings 3 and 5 in the closed position.

  Specifically, the outward engaging portions 311 and 511 are provided with protrusions 311a and 511a that protrude outward, that is, outward in the longitudinal direction of the binding tool G. The inward engagement portions 321 and 521 are provided with recesses 321a and 521a that can accommodate the protrusions 311a and 511a on the inner side.

  In a state where the tips of the first and second ring constituting members 31, 51, 32, 52 are engaged with each other, the protrusions 311a, 511a of the outward engaging portions 311 and 511 are inwardly engaging portions 321. The first ring constituent members 31, 51 are engaged with the butted ends of the first and second ring constituent members 31, 51, 32, 52 when engaged. Guide inclined surfaces 311c, 511c, 321c, and 521c are formed to guide the second ring component members 32 and 52 apart from each other.

  An outward engagement portion 311 provided in the first ring constituent member 31 in one binding ring 3 and an outward engagement portion 511 provided in the first ring constituent member 51 in the other binding ring 5. Are facing opposite directions. Further, an inward engagement portion 321 provided in the second ring constituent member 32 in one binding ring 3 and an inward engagement portion provided in the second ring constituent member 52 in the other binding ring 5. 521 faces the direction facing each other. Therefore, by moving the first ring constituent member 31 in one binding ring 3 and the first ring constituent member 51 in the other binding ring 5 in the approaching direction, the engaging portions 311, 511, 321, Engagement between 521 is released.

  If it is such a structure, in the state which the engagement part 311,511,321,521 of 1st, 2nd ring structural member 31,51,32,52 is cancelled | released, a base Since the first and second connecting plates 11 and 12 are elastically biased by the action of the torsion coil spring 6 attached between the main body 13 and the first connecting plate 11, the binding rings 3 and 5 are opened. The open position is maintained. When the first and second ring constituting members 31 and 32 constituting one binding ring 3 are operated in this direction from the opened state, the first and second connecting plates 11 and 12 mutually connect each other. Both the binding rings 3 and 5 connected to each other operate in the closing direction against the urging force of the elastic urging portion, and the first ring constituent members 31 and 51 of the binding rings 3 and 5 are engaged outwardly. The portions 311 and 511 engage with the inward engagement portions 321 and 521 of the second ring constituent members 32 and 52. Therefore, after the engagement, both the binding rings 3 and 5 are maintained in the closed position even when the hands are released from the first and second ring constituent members 31 and 32.

  The operation when the outward engaging portions 311 and 511 of the first ring constituent members 31 and 51 are engaged with the inward engaging portions 321 and 521 of the second ring constituent members 32 and 52 is described in detail. Then, it is as follows.

  When the operating force in the closing direction is applied to the first and second ring constituent members 31 and 32 constituting one binding ring 3 from the state in which the binding rings 3 and 5 are in the open position, Both binding rings 3 and 5 connected to each other by the first and second connecting plates 11 and 12 operate in the closing direction against the biasing force of the coil spring 6 as an elastic biasing portion, and the other binding rings 5 The first and second ring constituent members 51 and 52 of the first and second ring constituent members 51 and 52 are in contact with each other, and the first and second ring constituent members 31 and 32 of the first binding ring 3 are in contact with each other. Abut first. That is, the first and second ring constituent members 51 and 52 of the other binding ring 5, which is a binding ring that is located away from the one binding ring 3 to which the operation force in the closing direction is directly applied by fingers. The tip portions 51 s and 52 s push in the closing direction prior to the tip portions 31 s and 32 s of the first and second ring constituting members 31 and 32 of one binding ring 3 abutting and pressing each other. It will be.

  Next, at the stage where the tip portions of the first ring constituent members 31 and 51 and the tip portions of the second ring constituent members 32 and 52 face each other, the guide inclined surfaces 311c of the outward engaging portions 311 and 511 are provided. 511c and the guide inclined surfaces 321c and 521c of the inward engagement portions 321 and 521 come into contact with each other. When the operating force in the closing direction is further applied to the ring component members 31, 51, 32, 52 from this state, the outward engaging portions 311, 511 are guided by the guiding action of the guide inclined surfaces 311c, 511c, 321c, 521c. The first ring constituent members 31, 51 having the inner ring are temporarily elastically displaced inward and the second ring constituent members 32, 52 having the inward engaging portions 321, 521 are temporarily Will be elastically displaced outward. Then, the protrusions 311a and 511a of the outward engaging portions 311 and 511 are fitted into the concave portions 321a and 521a of the inward engaging portions 321 and 521, and the engagement is completed. As a result, both the binding rings 3 and 5 are held in the closed position even if the hand is released from one binding ring 3.

  The engaging operations between the engaging portions 311, 511, 321, 521 are performed by the first and second ring constituting members 31, 51, 32, 52 and the first and second connecting plates 11, 12. This is done using the overall deflection of the. In particular, it is carried out by utilizing the elastic deformation of each binding ring 3, 5 and its base portion. That is, the first ring constituent members 31 and 51 and the first connecting plate 11 are integrally formed of synthetic resin, and the second ring constituent members 32 and 52 and the second connecting plate 12 are integrally formed. Is integrally formed of a synthetic resin. For this reason, the engagement between the engaging portions 311, 511, 321, 521 is performed by the first ring constituent members 31, 51 and the first ring which are synthetic resin integrated molded bodies forming one binding element 8. The second ring constituent members 32 and 52 and the second connecting plate 12 which are synthetic resin integrated molded bodies forming the connecting plate 11 and the other binding element 9 are respectively applied to the resin integrated molded bodies. It is performed by elastically deforming as a whole using the characteristics that are excellent in rigidity and easy to bend.

  As described above, the binding tool G according to another embodiment has the other binding ring 5 by the operating force in the closing direction applied to one binding ring 3 of the two binding rings 3 and 5 in the open position. The first connecting plate 11 is made of resin, and is integrally formed with the first ring constituent members 31 and 51, and The second connecting plate 12 is made of resin and is integrally formed with the second ring constituent members 32 and 52. The binding rings 3 and 5 are urged in the opening direction by the coil spring 6 and closed against the urging force, so that the first and second ring constituent members 31, 51, and 32 are closed. , 52 are engaged with each other, and the engaging portions 311, 511, 321, 521 are engaged with each other and held in the closed position. For this reason, the engaging portions 311, 511, 321, and 521 are preferably engaged with each other by utilizing the elastic deformation of the resin, so the degree of elastic deformation is set higher than that of the metal one. A binding tool G in which the engaging portions 311, 511, 321, and 521 of all the binding rings 3 and 5 can be surely engaged with each other even with a small operating force and a file having the binding tool G are provided. Will be able to do. Moreover, the first connecting plate 11 is made of resin, and is integrally formed with the first ring constituent members 31, 51, and the second connecting plate 12 is made of resin, Since it is integrally molded with the second ring constituent members 32 and 52, it is possible to obtain a desired part with excellent accuracy in advance by the mold, and the mounting accuracy after assembly is also ensured. The binding tool G can be realized. In other words, the binding tool G according to the embodiment reduces the need to put a lot of attention on the mounting accuracy after assembly. Further, the angle of the first and second ring constituent members 31, 32, 51, 52 with respect to the connecting plates 11, 12 for each product does not vary, and the problem that the operating force varies for each product is less likely to occur. Become. In addition, since it is possible to obtain highly accurate parts, it is not necessary to have a cover that covers the pair of connecting plates that existed in conventional metal binding tools, and a binding tool G having a relatively simple configuration is realized. It has become something that can be done.

  The engaging operations between the engaging portions 311, 511, 321, 521 are performed by the first and second ring constituting members 31, 51, 32, 52 and the first and second connecting plates 11, 12. Therefore, the engaging portions 311, 511, 321, and 521 are suitably engaged with each other by utilizing the characteristics of the resin-integrated molded body.

  In the first and second connection plates 11 and 12, the thickness dimension of the connection plate one end portion 11a and 12a, which is the portion to which the one binding ring 3 is connected, is set to a portion other than the connection plate one end portion 11a and 12a. It is formed thicker than 11b and 12b. For this reason, it becomes the thing excellent in the freedom degree of the design for transmitting suitably the operating force which acted on one binding ring 3 to the other binding ring 5 via the 1st, 2nd connection plates 11 and 12. .

  Step portions 11c, between the connecting plate one end portions 11a, 12a on the upper surface side of the first and second connecting plates 11, 12 and other portions 11b, 12b other than the connecting plate one end portions 11a, 12a, 12c is formed. For this reason, it is excellent in the freedom degree of design for forming the thickness dimension of connecting plate one end part 11a and 12a thicker than other parts 11b and 12b other than the connecting plate one end part 11a and 12a, and for the convenience of mold design It can contribute. Further, the position of one binding ring 3 positioned on the near side of the operator to which the operating force should be directly applied can be recognized in relation to the step portions 11c and 12c.

  The connecting plate one end portion 11a of the first connecting plate 11 forms an accommodation space sp for arranging the coil spring 6 as the elastic urging means on the lower surface side thereof. For this reason, it is easy to ensure a space area for accommodating the necessary coil spring 6.

  The coil spring 6 is disposed between the base main body 13 and the first connecting plate 11 in the vicinity of the one binding ring 3, and the base main body 13 is in the closed position for the binding rings 3 and 5. When held, the first spacer member 7a in contact with the lower surface of the second connecting plate 12 in the vicinity of the one binding ring 3 and the first and second in the vicinity of the other binding ring 5 And a second spacer member 7b with which the lower surfaces of the connecting plates 11 and 12 abut. For this reason, the arrangement of the coil spring 6 disposed between the first connecting plate 11 and the base main body 13, and the shaft support 122 of the base main body 13 and the rotating shaft 112 of the first and second connecting plates 11 and 12. , 122, the phenomenon that the upper surfaces of the first and second connecting plates 11, 12 are difficult to be flush with each other can be suitably suppressed. Specifically, the first spacer member 7a is formed in anticipation of the resin elastic deformation of the connecting plate one end portion 11a of the first connecting plate 11 that is directly biased upward by the coil spring 6. It functions to adjust the position of the upper surface 12as in the closed position of the connecting plate one end 12a of the connecting plate 12. In addition, the second spacer member 7b corresponds to the positions of the connection plate one end portions 11a and 12a of the first and second connection plates 11 and 12 described above. It functions to adjust the position of the upper surfaces 11bs, 12bs on the other end portions 11b, 12b side. In such a case, the upper surfaces of the first and second connecting plates 11 and 12 can be easily set to be flush with each other, and the appearance can be improved, and thus it can contribute to comfortable use.

  By moving the first ring constituent member 31 in the one binding ring 3 and the first ring constituent member 51 in the other binding ring 5 in the approaching direction, the engaging portions 311, 321 and 511 are moved. Since the engagement between the two binding rings 521 is released, the operation for releasing the engagement state of the two binding rings 3 and 5 and opening each of the binding rings 3 and 5 can be easily performed. It is possible.

  In addition, this invention is not limited to embodiment described in full detail above.

  The magnitude | size of a 1st ring structural member or a 2nd ring structural member can be set to various magnitude | sizes, and is not limited to the thing of embodiment mentioned above. The base main body can support the first and second connecting plates integrally attached with the first and second ring constituent members set to a predetermined size in the manufacturing stage. In other words, the base body can be applied in common as a component of a plurality of types of binding tools having different binding ring sizes without changing the specifications.

  For example, in the case where two types of a binding tool having a large binding ring and a binding tool having a small binding ring (and a file having the binding tool) can be provided, the base body is made of each type. It can be applied as a component common to the binding tool. One and the other binding elements having a large binding ring and one and the other binding elements having a small binding ring can be supported by a common base body. For this reason, the parts of the base main body can be shared, and this can contribute to the reduction of manufacturing man-hours.

  In addition, the specific configuration of each part is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

  The present invention can be used as a binding tool for binding documents and the like and a file to which the binding tool is applied.

DESCRIPTION OF SYMBOLS 1 ... Base 11 ... 1st connection board 116 ... Shaft (other end shaft)
12 ... Second connecting plate 126 ... Shaft (other end shaft)
136 ... Allowable shaft support G ... Binding tool F ... File H ... Cover

Claims (10)

A base formed by pivotally supporting the first and second connecting plates butted against each other on the base body, and a first ring component supported by the first connecting plate and the second connecting plate are supported. A plurality of binding rings each having a second ring component, and another binding ring by an operating force in the closing direction applied to one of the binding rings in the open position. A binding tool that can also be closed
In the open position in which the tip of the first ring component and the tip of the second ring component in the plurality of binding rings are separated from each other, the tip of the first ring component in the other binding ring The separation distance between the front end portion of the second ring constituent member is set shorter than the separation distance between the front end portion of the first ring constituent member and the front end portion of the second ring constituent member in the one binding ring. ,
The first connecting plate is made of resin and is integrally formed with the first ring constituent member, and the second connecting plate is made of resin and together with the second ring constituent member It is integrally molded,
Each of the binding rings is urged in the opening direction by an elastic urging means and is engaged at the tip of the first and second ring constituent members in a closed state against the urging force. A binding tool characterized in that the parts are engaged and held in a closed position.   The binding operation according to claim 1, wherein the engaging operation between the engaging portions is performed using an overall deflection of the first and second ring constituent members and the first and second connecting plates. Ingredients.   The thickness dimension of the connection plate one end part which the said 1st binding ring in said 1st, 2nd connection plate connects is formed thicker than other parts other than the said connection plate one end part. Binding tool.   The binding tool according to claim 3, wherein a step portion is formed between one end portion of the connection plate on the upper surface side of the first and second connection plates and a portion other than the one end portion of the connection plate.   The binding tool according to claim 3 or 4, wherein one end portion of the connection plate of the first connection plate forms an accommodation space for arranging the elastic urging means on the lower surface side thereof. The elastic biasing means is disposed between the base body and the first connecting plate in the vicinity of the one binding ring;
The base body includes a first spacer member that a lower surface of the second connecting plate abuts in the vicinity of the one binding ring and the other binding ring when the binding rings are held in a closed position. The binding tool according to claim 1, 2, 3, 4, or 5, further comprising: a second spacer member in contact with a lower surface of the first and second connecting plates in the vicinity. The plurality of binding rings are two binding rings;
The outward engaging portion provided in the first ring constituent member in the one binding ring and the outward engaging portion provided in the first ring constituent member in the other binding ring Are directed in directions opposite to each other, provided in the inwardly engaging portion provided in the second ring constituent member in the one binding ring and in the second ring constituent member in the other binding ring. Facing inwardly facing each other with the inwardly engaging portions,
The engagement between the engaging portions is released by moving the first ring constituent member in the one binding ring and the first ring constituent member in the other binding ring in the approaching direction. The binding tool according to claim 1, 2, 3, 4, 5 or 6.   The first and second connection plates of the first and second connecting plates are caused by a temporary separation operation in a direction intersecting an operation direction when the engaging portions of the first and second ring constituent members engage with each other. The binding tool according to claim 1, further comprising an allowable shaft support portion that supports the shaft while allowing temporary movement of any shaft.   The file which comprises the binding tool in any one of the said Claims 1-8 in a cover body.   The binding tool according to any one of claims 1 to 8 is attached to a cover body whose use direction is clearly set so that one binding ring is positioned on the front side of the other binding ring. File.

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