JPH10297156A - Binding implement for binder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve production efficiency by reduction in number of components and simple assembling by rotatably mounting both ends of a base end of an engaging plate at both ends of its base end at an outside of a standing wall, and inserting a U-shaped spring from the wall and the base end side of the plate, and sandwiching the both therebetween. SOLUTION: A recess 14 matched to an end shape of a U-shaped spring 9 is engraved at a corresponding position to an insertion hole 13 at an outer surface of an engaging plate 8. And, the hole 13 is matched to the recess 14 to form a spring mounting part 15. The spring 9 is inserted from a superposed standing wall 7 and a base end side of the plate 8 to a spring mounting part 15, and both are sandwiched therebetween. A finger strap is externally urged to resist against an elastic force of the spring 9 to disengage bars 3, 3a from engaging holes 20, 20a so that a swinging plate 4 can be swung. At the time of binding, the plate 4 of the tilted state is again stood, and the plate 8 is externally urged to resist against the elastic force of the spring 9.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a binder binding device for binding and organizing documents and papers.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 7, as this kind of binding tool a, an opening / closing plate c provided with rods b and b1 through which a document is inserted, and a distal end of the rods b and b1 are detachably attached. It can be seen that the overlapping plate d, which freely engages and supports, is disposed to face each of the side ends of the substrate e.

The binding device a is composed of a shaft rod g having a torsion coil spring f mounted thereon, and pivotally connecting the base end of the opening and closing plate c to the substrate e so as to urge the opening and closing plate c outward. Had been done.
The overlapping plate d is composed of an upright wall h standing upright on the substrate e and an engaging plate i overlapped on the outer surface of the upright wall h, and includes a shaft g1 provided with a separately provided torsion coil spring f1. The base end of the engagement plate i is pivotally connected to the base end of the standing wall h so as to urge the engagement plate i toward the standing wall h.

[0004]

However, the binding device a having the above-mentioned structure has a large number of parts, and in particular, the torsion coil springs f and f1 and the shaft plates g and g1 are incorporated so that each of the opening / closing plate c and the engaging plate i can be assembled. The work to attach to the board e is very troublesome,
It took time and effort, and the production efficiency did not increase, resulting in high costs.

[0005]

SUMMARY OF THE INVENTION In view of the above-mentioned problems, the present invention provides a rotatable opening / closing plate having a plurality of rods protruding from respective opposite side ends of a substrate. A concave portion corresponding to the distal end portion is provided so as to be integrally formed with an upright wall standing upright, and corresponding to the concave portion, both ends of a base end of an engaging plate provided with a sliding surface and an engaging hole are formed outside the upright wall. By rotatably attaching to the both ends of the base end, inserting a U-shaped spring from the base end side of the upright wall and the engagement plate, and sandwiching them, the number of parts is reduced and assembly is simplified.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. Reference numeral 1 denotes a binding tool made of plastic. As shown in FIGS. 1 and 2, the binding tool 1 includes a plurality of parallel rods 3 on opposite sides of a rectangular substrate 2. An opening / closing plate 4 having a vertically protruding 3a and an overlapping plate 5 for detachably engaging and supporting the distal ends of the rods 3 and 3a are arranged to face each other.

The opening / closing plate 4 is formed integrally with the substrate 2 via the thin portion 6, and is provided rotatably. The overlapping plate 5 is integrally formed so as to stand upright on the substrate 2, an engaging plate 8 rotatably mounted outside the standing wall 7, and inserted from the base end side of the standing wall 7 and the engaging plate 8. , U holding both
And a U-shaped spring 9.

The overlapping plate 5 will be described in detail below. As shown in FIG. 3, the upright wall 7 is formed shorter than the substrate 2, and pins 10 and 10a are protruded from both ends of the base end of the upright wall 7 by an amount shorter than the substrate 2. The engagement plate 8 is provided with bearings 11, 11a for pins 10, 10a at both ends of the base end.

The bearings 11 and 11a are formed in a cylindrical shape, and the lower portions of the bearings 11 and 11a (corresponding to the outside of the engaging plate 8) are cut out to form insertion holes 12 and 12a for the pins 10 and 10a. With the engagement plate 8 tilted at a predetermined angle, the pins 10, 10a
Into the bearings 11, 11a from the insertion ports 12, 12a,
The engagement plate 8 is rotatable.

From the center of the base end of the standing wall 7 to the inner surface,
An insertion hole 13 for the U-shaped spring 9 is formed.
Is formed by engraving the base end side of the standing wall 7 by the thickness thereof, and engraving so as to match the end shape of the U-shaped spring 9 over the inner surface of the standing wall 7 upward.

On the other hand, on the outer surface of the engaging plate 8, a concave portion 14 corresponding to the end shape of the U-shaped spring 9 is formed at a position corresponding to the insertion hole 13. Then, the insertion hole 13 and the concave portion 14 are combined to form the spring mounting portion 15, and the overlapped standing wall 7 is formed.
And the U-shaped spring 9 is attached to the spring mounting portion 15 from the base end side of the engagement plate 8.
, And sandwiches both. A single groove 16 is formed in the longitudinal direction of the upper end of the concave portion 14, and a convex portion 17 protruding from an upper end of one end of the U-shaped spring 9 is fitted into the concave groove 16 to prevent the groove from coming off.

At the upper end of the standing wall 7, guide recesses 18 and 18a are engraved at positions corresponding to the tips of the rods 3 and 3a, and the upper ends of the engaging plates 8 correspond to the guide recesses 18 and 18a. Sliding surfaces 19 and 19a are formed on the standing wall 7 side.
Engagement holes 20, 20a extend through below.

The center and both ends of the upper end of the upright wall 7 are cut out to partially expose the joining surface (inner side) of the engaging plate 8 to the upright wall 7 side. And

The binding device 1 is fixed by driving the rivet with the substrate 2 aligned with the back portion C of the cover B of the binder A.

Next, the operation of the binder of the present invention will be described. As shown in FIG. 1, in a state in which the binding device 1 is bound, the opening / closing plate 4 is erected to face the overlapping plate 5,
The tips of the rods 3 and 3a are held in the guide recesses 18 and 18a of the upright wall 7 and are engaged with the engagement holes 20 and 20a of the engagement plate 8.

By pushing the finger rests 21 and 21a outward against the elastic force of the U-shaped spring 9, as shown in FIG. The engagement of 3a is released, and the opening / closing plate 4 can be opened and closed.

At the time of binding, as shown in FIG. 2, the open / close plate 4 in the pulled-down state is turned upright, and as shown in FIG.
The engaging plate 8 is pushed out so as to oppose the elastic force of the U-shaped spring 9 while pressing the tip of the U-shaped member against the sliding surfaces 19 and 19a. When the tips of the rods 3 and 3a are settled below the guide recesses 18 and 18a, the engaging plate 8 is returned by the U-shaped spring 9, and the engaging holes 20 and 20a are engaged with the tips of the rods 3 and 3a. Combine.

[0018]

In short, according to the present invention, a plurality of rods 3 and 3a are protruded from each of the opposing side ends of the substrate 2, and the rotatable opening / closing plate 4 and the rods 3 and 3a are provided. The guide recesses 18 and 18a corresponding to the distal end portions are provided, and the vertically standing upright wall 7 is formed integrally with the guide recesses 18 and 18a. Thus, the labor for assembling the opening / closing plate c on the substrate e can be omitted, and the number of components can be reduced.

Also, corresponding to the guide recesses 18 and 18a, the sliding surface
Since both ends of the base end of the engagement plate 8 provided with the holes 19, 19a and the engagement holes 20, 20a are rotatably attached to both ends of the base outside the standing wall 7, as in the conventional binding device a. , Separate shaft rod g1
Accordingly, the labor for assembling the engaging plate i to the standing wall h can be omitted, the number of components can be reduced, and the U-shaped spring 9 can be assembled to the standing wall 7 and the engaging plate 8 without hindering the rotation of the engaging plate 8. .

Further, since the U-shaped spring 9 is inserted from the base end side of the upright wall 7 and the engagement plate 8 and sandwiched therebetween, the torsion coil spring f1 is externally mounted on the shaft bar g1 like the conventional binding device a. Without providing the elastic force of the U-shaped spring 9 to the engagement plate 8, the assembly can be simplified.

Therefore, according to the present invention, the number of parts can be reduced with respect to the conventional product, and it can be easily assembled, so that the production efficiency can be improved and the cost can be reduced.

Further, since the opening / closing plate 4 is provided rotatably via the thin portion 6, the opening / closing plate 4 can be used without using the shaft bar g.
And the opening / closing plate 4 can be formed integrally with the substrate 2.

Further, cylindrical bearings 11, 11a are provided at both ends of the base end of the engaging plate 8, and the lower portions of the backs of the bearings 11, 11a are cut out to form insertion openings 12, 12a. Pins 10 projecting from the insertion ports 12 and 12a at both ends of the base end of the standing wall 7,
10a is inserted into the bearings 11 and 11a, so that the engagement plate 8
The bearings 11 and 11a can be easily attached to the pins 10 and 10a only when the U-shaped spring 9 is attached as described above, and only when the U-shaped spring 9 is attached as described above. Therefore, even if the engaging plate 8 is tilted when the tip of the rod 3, 3a is attached to or detached from the engaging holes 20, 20a, the engaging plate 8 does not come off from the upright wall 7, and its practical effect is extremely large. It is.

[Brief description of the drawings]

FIG. 1 is a perspective view of a binder binding tool according to the present invention.

FIG. 2 is a perspective view of the binding device in a state where the rod is disengaged.

FIG. 3 is an exploded perspective view of the binding device.

FIG. 4 is a diagram showing a process of attaching an engagement plate.

FIG. 5 is a sectional view taken along line YY of FIG. 2;

FIG. 6 is a sectional view taken along line XX of FIG. 1;

FIG. 7 is a perspective view of a conventional binder binding device.

[Explanation of symbols]

 2 Substrate 3, 3a Rod 4 Opening / closing plate 6 Thin part 7 Standing wall 8 Engagement plate 9 U-shaped spring 10, 10a Pin 11, 11a Bearing part 12, 12a Insertion port 18, 18a Guide recess 19, 19a Sliding surface 20, 20a Hole

Claims (3)

[Claims] 1. A plurality of rods protrude from respective opposing side ends of a substrate, and a rotatable opening / closing plate and a guide recess corresponding to the tip of the rod are provided to stand upright. The base end of the engaging plate provided with a sliding surface and an engaging hole corresponding to the guide recess is rotatably attached to both ends of the base end outside the standing wall. A binder binding device characterized in that a U-shaped spring is inserted from the base end side of the upright wall and the engagement plate, and both are sandwiched. 2. The binder binding device according to claim 1, wherein the opening / closing plate is rotatably provided via a thin portion. 3. A cylindrical bearing portion is provided at both ends of a base end portion of an engaging plate, and a lower portion of a back portion of the bearing portion is cut out to form an insertion port. 3. The binder binding device according to claim 1, wherein the pin protruding from the first member is inserted into the bearing portion.