JPH0743619U - File binding - Google Patents

Abstract

(57) [Abstract] [Purpose] In a file binding device, the central plate member and the upper and lower side plate members can be maintained in a right-angled state, and an overall elastic restoring force of both can be imparted. [Structure] A plastic file binder,
The second side plate member 12 is a plastic file binding device having a groove or a hole for engaging with the holding member 18, and has a first height which is constant along the longitudinal direction of the central plate member 4. Of the first lateral plate member 8 is formed along the longitudinal direction of the first side plate member 8 to form an elastic second projecting portion 36. The top portion 38 of the first protrusion abuts the side surface 40 facing the central plate member near the top portion of the second protrusion.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a hinged file binding device.

[0002]

[Prior art]

 FIG. 4 exemplifies a hinge-type binding device 1 which is integrally molded with a so-called cap-type plastic that has been conventionally used. The binding device 1 is generally composed of a central plate member 3 for fixing to a back side of a cover member (not shown), and two lateral sides hingedly connected to each other along a longitudinal piece of the central plate member 3. It is constituted by plate members 5 and 7, and the two side plate members 5 and 7 are fitted to each other when they are closed to hold a slip, for example, see Retaining members and receptacles, such as those shown at 9 and 11, are provided. In the binding device 1 having such a holding member and a receiver, for example, when taking out or adding a bound voucher, the front edge portion 13 of the side plate member 5 is pulled up in the direction of the arrow to remove the fitting state of the holding members. There is a need. On the contrary, when the holding portion 9 and the receiving portion 11 are locked, it is necessary to bring them into a substantially aligned state and then lock each other.

[0003]

[Problems to be solved by the device]

 In Japanese Utility Model Laid-Open No. 56-33682, instead of the holding member and the receiving member, the upper side plate member is attached to the upper end of the holding member so as to be disengaged from the locked state when the upper side plate member is pushed in the plate surface direction. Form a locking groove, and the upper side plate member has a locking claw that engages with this locking groove, while the locking state is a right angle due to the elasticity of the central plate member and the upper and lower side plate members. It was suggested to maintain the condition.

However, the locking force is not sufficient because the overall restoring force of the central plate member and the upper and lower side plate members is insufficient, and when the locking claw is engaged with the locking groove. It was difficult to maintain the center plate member and the upper and lower side plate members in the right-angled state. In addition, in order to lock the locking groove and the locking claw, they must first be aligned, but they must be placed in the correct positions due to the lack of overall restoring force of the center plate member and the upper and lower side plate members. Is hard to come out. On the other hand, the correct right-angled states of the central plate member and the upper and lower side plate members are provided by providing a central plate member having high rigidity and a lower side plate member as disclosed in Japanese Patent Laid-Open No. 50-27775. The projections provided on them are made to collide with each other to give rigidity and maintain the posture, but since elastic deformation cannot be sufficiently performed, a locking means such as the actual construction No. 56-33 682 is provided. However, the desired engagement / disengagement effect cannot be obtained. On the other hand, in the conventional example as shown in FIG. 4, when the holding part 9 and the receiver 11 are fitted, it is necessary to keep them substantially in alignment, but the central plate member 3 and the two side plate members 5 and Due to the lack of overall resilience of 7, this alignment cannot be achieved and must be done by hand. Also, when the central plate member and the two side plate members are rigidly held by means such as Japanese Utility Model Laid-Open No. 56-33682, similar alignment is difficult due to resistance due to rigidity. SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a file binding device that can be integrally molded with plastic and has an engaging structure portion that can eliminate the above-mentioned drawbacks of conventional products.

[0005]

[Technical Means for Solving the Problems]

 According to the present invention, the central plate member 4, the first side plate member 8 integrally coupled to the central plate member 4 so as to be hinged along the first side in the longitudinal direction, and the central plate. A second side plate member 12 integrally hinged along the second side of the member 4 in the longitudinal direction so that it can be hinged. A plurality of columnar holding members 18 for fitting into the binding holes are provided, and a member for elastically engaging the head portion 32 of the holding member 18 inside the second side plate member 12. A file binding device made of plastic having a joint portion, wherein a first protrusion 34 having a constant height is formed along the longitudinal direction of the central plate member 4, and the first side plate is formed. An elastic second protrusion 36 having a constant height is formed along the longitudinal direction of the member 8, and when the file binding portion is assembled, the first Wherein the top portion 3 8 of the projecting portion is a side surface 40 facing the center plate member of the second protrusion top near the abutting configuration, the file for the binding device is provided. According to the present invention, the overall restoring force of the central plate member and the upper and lower side plate members is sufficient, and the central plate member and the upper and lower side plate members can be maintained in a correct right angle state. (EN) Provided is a file binding device in which a head of a holding member and an engaging portion are properly aligned and which can be easily brought into a locked state by only making a slight adjustment by hand.

[0006]

【Example】

 Hereinafter, the present invention will be described in detail with reference to the drawings. 1 to 3 illustrate a file binding device 2 having the structure of the present invention. The file binding device 2 has a first side integrally connected to the central plate member 4 along the longitudinal direction of the central plate member 4 by a first connecting portion 6 like the conventional one. It also includes a side plate member 8 and a second side plate member 12 that is also integrally connected along the longitudinal direction of the central plate member 4 by a second connecting portion 10. The file binder 2 of the present invention is preferably integrally molded from plastic. The first side plate member 8 is provided with a hole 16 for fixing to the cover member, and is further inserted into a binding hole of a loose leaf or a voucher similar to the member indicated by reference numeral 9 in FIG. A pair of tubular annular holding members 18 for holding them are integrally provided.

An engaging portion for engaging with the pair of holding members 18 is formed on the left side of the second side plate member 12 in FIG. 2, that is, near the front edge. The engagement portion is indicated by B in FIG. 2 and its enlarged view is shown in FIG. As shown in FIG. 3, the engaging portion is engaged with a recess 20 into which the head of the holding member 18 is fitted, and a groove portion or an engaging groove 22 formed in the head of the holding member 18. It is constituted by a claw portion or an engaging claw 24 for engaging. The engaging groove 22 and the engaging claw 24 rotate the second side plate member 12 in the direction of the arrow C with the first coupling portion 10 as a fulcrum, and the inner side surface 26 of the engaging member 22 and the engaging claw 24 have a head portion of the holding member 18. The second side plate member 12 is further pressed in the direction of arrow C in the state of being brought into contact with the second side plate member 12 so that the second side plate member 12 and the second side plate member 12 are elastically engaged with each other. Unlike the conventional circular receiver 11 shown in FIG. 1, the recess 20 of the present invention is formed as an oval shape extending in the transverse direction of the second side plate member 12. As a result, a space 28 is created behind the holding member 18 with the engaging portion and the holding member engaged with each other. The space 28 allows the second side plate member 12 to move in the direction of arrow D when the file binding device 2 of the present invention, which will be described later, is opened. A tapered surface 30 as shown in FIG. 3 is formed on the rear surface of the oval shape, that is, on the inner surface of the central plate member 4 side. When the second side plate member 12 moves in the direction of the arrow D, the tapered surface 30 is provided at the same time as or immediately after the engaging claw 24 and the engaging groove 22 are completely disengaged. Positioned within the recess 20 so that it can abut the rear portion 32 of the head of the. The structure shown in FIG. 3 is an example, and the present invention can be applied to a file binding device having an engaging portion as shown in Japanese Utility Model Laid-Open No. 56-33682. The present invention can also be applied to a file binding device as shown in FIG. That is, since the central plate member and the side plate member can be defined at right angles by the structure of the present invention, the holding member 9 and the receiving member 11 can be aligned, and even if there is a slight deviation between the two members, The moderate elasticity of the portion 36 can be used to easily align and fit the both.

Like the conventional similar product, the file binding device 2 of the present invention, in the engaged state shown in FIG. 2, has an arrow a with the second connection as a fulcrum to the first side plate member 8. A biasing force in the direction always acts on the second side plate member 12, and a biasing force in the direction of the arrow b with the first connecting portion as a fulcrum always acts on the second side plate member 12. Therefore, the mutual engagement state of the engagement claw 24 and the engagement groove 22 is maintained by the two biasing forces. By moving the second side plate member 12 to the position indicated by the imaginary line E in the direction of the arrow D as described above, the tapered surface 30 forms the rear portion 32 of the head of the holding member 18. Abut. When the second side plate member 12 is further moved in the direction of the arrow D, the tapered surface 30 slides on the rear portion 32 of the head portion of the holding member 18 so that a cam action is generated and the second side plate member 12 is moved. The plate member 12 is gradually raised in the direction of the arrow F while rotating around the second coupling portion 10. Thereby, the file binding device 2 of the present invention can be easily opened. Further, the closure of the present invention can be performed easily because the proper position can be adjusted by the elasticity of the present invention, and the state can be surely maintained when the end is locked. With the configuration of the present invention, the center plate member and the side plate member can be defined at right angles, so that the holding member 18 and the locking groove 22 can be aligned, and even if there is a slight deviation between the two, the protrusion Both can be easily aligned and fitted by utilizing the appropriate elasticity of 36.

In FIG. 1, a first projecting portion 34 is integrally molded at a constant height along the longitudinal direction on the central plate member 4, preferably at a position near the first lateral plate member 8. The first protrusion 34 may have a plurality of protrusion shapes as long as it has a constant height. On the other hand, an elastic second projecting portion 36 is integrally formed on the first side plate member 8 at a position close to the central plate member 4 at a constant height along the longitudinal direction. In the engaged state shown in FIG. 3, the top portion 38 of the first protrusion 34 abuts on the upper portion of the side surface 40 of the second protrusion 36 so that the first protrusion 34 and the second protrusion 36 are in contact with each other. They are positioned relative to each other and adjusted in height so that they are pressed against. Further, the first and second protrusions mutually engage the engaging portion of the second side plate member 12 and the holding member 18 of the first side plate member 8 during such abutting and pressing. At times, the wall thickness and the abutting height of the top portion 38 are adjusted so that an elastic biasing force as shown by the arrow M direction in FIG. 1 is generated. The biasing force causes the engaging claw 24 of the engaging portion to be drawn into the engaging groove 22 of the holding member 18. Therefore, in such a file binding device 2, the mutual engagement state between the engaging portion and the holding member is more strongly maintained than in the case where only the respective biasing forces in the directions of the arrows a and b shown in FIG. 2 act. It is possible to

[0010]

[Effect of device]

 According to the present invention, since the center plate member and the upper and lower side plate members can be maintained in the right-angled state, the holding member of the binding device and the receiving or locking groove can be aligned, and a slight alignment can be achieved. Even if there is a deviation, the overall elastic restoring force of the central plate member and the upper and lower side plate members is sufficient. The locking of the receiver can be easily performed. Also, once locked, the state can be surely maintained. Although the present invention has been described above with reference to specific examples, it should be understood that many modifications can be made within the scope of the present invention.

[Brief description of drawings]

FIG. 1 is a front view of a file binding device of the present invention.

FIG. 2 is a sectional view taken along the line AA in FIG.

FIG. 3 is an enlarged cross-sectional view of portion B of FIG.

FIG. 4 is a perspective view of a conventional cap-type file binding device.

[Explanation of symbols]

 2: File binding device 4: Central plate member 6: First connecting part 8: First side plate member 10: Second connecting part 12: Second side plate member 18: Holding member 20: Recessed Location 22: Engagement groove 24: Engaging claw 30: Tapered surface 34: First protrusion 36: Second protrusion

Claims (1)

[Scope of utility model registration request] 1. A central plate member (4) and a first lateral plate member (8) integrally hinged together along a first side of the central plate member (4) in a longitudinal direction so as to be hinged. And a second lateral plate member (12) integrally hingedly movable along a second lateral side of the central plate member (4) in the longitudinal direction. The plate member (8) is provided with a plurality of columnar holding members (18) for fitting into binding holes such as slips, and the second side plate member (12) is the holding member (18).
A plastic file binder having a groove or a hole for engaging with, wherein a first protrusion (34) having a constant height is formed along the longitudinal direction of the central plate member (4), An elastic second protrusion (36) having a constant height is formed along the longitudinal direction of the first side plate member (8), and when the file binding portion is assembled, the first protrusion is A side surface (40) whose top portion (38) faces the central plate member near the top portion of the second protrusion.
The file binding device, wherein the file binding device is configured to abut.