JP2000052680A - Binder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a binder for easily sorting at the time of discarding by easily manufacturing and assembling with a simple structure with less number of components and easily disassembling. SOLUTION: The binder 10 comprises a base plate 12 having a recess 11 and longitudinally extending, and rings 14a, 14b of a plurality of opening/closing binding members oscillatorily opposed via a plurality of cutouts formed symmetrically at both ends of a longitudinal direction of the plate 12. The rings 14a, 14b are oscillatorily contained in the recess 11 of the plate 12 and coupled integrally with two support plats 14 extending longitudinally. Further, an elastic member 15 for holding the rings 14a, 14b in an opening position and a closed position is extended between protrusion pieces 17 of the two plates 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a binding device for binding documents and the like, and more particularly to a binding device having a simple structure and easy to manufacture and assemble.

[0002]

2. Description of the Related Art Conventionally, in a binding device fixed to a spine portion of a file or the like and binding a form or the like, a substrate portion fixed to the spine portion is formed of metal, and a binding ring portion is also formed of metal. Are joined together by caulking or the like, including a spring material that makes them elastically contact each other.

[0003]

However, in the above-mentioned conventional binding device, a plurality of components made of metal are joined by caulking or the like, so that there is a problem that the production and assembly are complicated. In addition, since the components are joined by caulking, there is a problem that it is difficult to separate the components when discarding.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has a small number of parts, can be easily manufactured and assembled, can be easily disassembled when discarded, is easy to separate, and is environmentally friendly. The purpose of the present invention is to provide a binding device.

[0005]

In order to achieve the above object, a binding device according to the present invention comprises a substrate having a concave portion and extending in a longitudinal direction, and a symmetrical member disposed at both ends in the longitudinal direction of the substrate. A plurality of opening / closing binding members oscillatingly opposed to each other through a plurality of cutouts formed in a flexible manner, and these opening / closing binding members are slidably housed in recesses of the substrate and extend in the longitudinal direction. An elastic member integrally connected to the two support plates and holding the plurality of open / close binding members at the open position and the closed position is stretched between the two support plates.

It is desirable that protrusions are formed at predetermined intervals at longitudinally opposed edges of the two support plates so that the protrusions hold an elastic member. The elastic member is a piano wire. Is desirable, except for the piano wire,
It is preferable that all are made of synthetic resin. A mounting hole having an inverted tapered portion may be formed adjacent to both ends of the concave portion of the substrate, and the substrate may be fixed to the mount by inserting a rivet having an inverted tapered portion into the mounting hole.

According to the binding device of the present invention configured as described above, it is possible to assemble simply by holding the elastic member between the support plates of the opening and closing binding member and storing the elastic member in the substrate, and the disassembly can be easily performed. Therefore, parts can be easily separated at the time of disposal.

[0008]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a front view of an embodiment of the binding device according to the present invention, FIG. 2 is a side view of a state in which a part of FIG. 1 is broken, FIG. 3 is a bottom view in which a part of FIG. FIG. 4A is an enlarged sectional view taken along line AA of FIG. 2, FIG. 4B is an enlarged sectional view of the open binding member of FIG. 4A in an open state, and FIG. FIG. 4D is an operation explanatory view of the protruding piece in the open state, FIG. 4D is an operational explanatory view of the adjacent protruding piece in FIG.
FIG. 5 is an enlarged perspective view showing a main part of a support plate and an open binding member, and FIG. 6 is an operation explanatory diagram for fixing a binding device and a spine of a file.

In FIGS. 1 to 6, the binding device 10 has a concave portion 11.
And a longitudinally extending substrate 12;
2, a plurality of open / close binding members, ie, ring portions 14a, 14a, which are swingably opposed via a plurality of notch portions 13 formed symmetrically at both end portions in the longitudinal direction. Are integrally connected to two support plates 14, 14, which are swingably housed in the recesses 11 of the substrate 12 and extend in the longitudinal direction.
A spring rod 15, which is an elastic member for holding the two ring portions 14a, 14a in the open position and the closed position,
It is stretched between 4 and 14. The ring portions 14a, 14a form a binding ring that binds the form at the closed position.
The two support plates 14 and 14 are housed in the recess 11 in the substrate 12, and a spring bar 15 is mounted between the support plates 14 and 14. One of the tips of the ring portions 14a, 14a is formed with a cross-shaped protrusion, and the other is formed with a cross-shaped recess.
The configuration is such that they do not shift when both are closed.

The substrate 12 is made of a relatively hard plastic such as ABS resin, and has an upper surface 12a and side surfaces 12b and 12b.
b and the end faces 12c, 12c, a recess 11 is formed inside, and four notches 13 penetrating from the side surface to the upper surface.
Are formed, and the notch portion 13 is formed with the ring portions 14a, 14a.
a is inserted. The support plates 14, 14 and the ring portions 14a, 14a are integrally formed of relatively soft plastic such as polycarbonate resin.

A plurality of protrusions 16 for positioning a spring bar 15 which is an elastic member are formed at both ends of the support plates 14 and 14 at longitudinally opposite end edges, and the spring bars 15 are mutually connected at an intermediate portion. A plurality of projecting pieces 17 to be sandwiched are formed. The protruding portion 16 is composed of an upper protruding portion 16a having a notched lower portion, and a lower protruding portion 16b having an upper portion cut out. It prevents movement. The projecting piece 17 has a semicircular notch corresponding to the circular cross section of the spring rod 15. Two support plates 14, 14 and ring portions 14a, 1
Reference numeral 4a has the same shape, and the plurality of projections 17 are set so as to be positioned at the middle of each other. Spring bar 15
Is formed by cutting a piano wire having a diameter of about 1 mm.

Outside the support plates 14, 14, edge portions 18, 18 in contact with the surface of the substrate 12 are provided in a protruding manner in the longitudinal direction. The edge portions 18 serve as fulcrums when the support plates 14 swing with respect to the substrate 12, and grooves 12d, 1d are provided on the inner surface of the substrate 12 corresponding to the edge portions.
2d is formed. Protrusions 19, 19 are provided on both end surfaces of the support plate so as to be in contact with the inner surface of the partition wall of the substrate 12, thereby reducing contact resistance when the support plates 14, 14 swing with respect to the substrate 12. Things.

As shown in FIG. 4, the support plates 14, 14
The distance L between the edge portions 18 and 18 and the center of the semicircular notch of the projecting pieces 17 and 17 is set to be larger than の of the distance D between the two opposed edge portions 18 and 18. . That is, as shown in FIG. 4C, the distance L, which is the swing radius of the right projection piece, exceeds the center line to the left, and
As shown in (d), the distance L which is the swing radius of the left projection piece is:
Crossing the center line to the right. For this reason, as shown in FIG. 3, in a state where the support plates 14 and 14 are fitted into the concave portions 11 of the substrate 12, the spring rods 15 are curved in a waveform, and the support plate 14 and 14 are configured to repel each other. The spring bar 15 is soft,
Since it is easy to bend, it is suitable for holding the support plates 14 and 14.

When the ring portions 14a, 14a are opened, the support plate 1
The state of the top dead center where the upper surfaces of the substrates 4 and 14 are in contact with the inner surface of the substrate 12 (see FIG. 4B), and the state of the bottom dead center where the ring portions 14a and 14a are closed and the support plates 14 and 14 are moved downward. The support plate 1 is within a range of an angle θ between the state (see FIG. 4A).
4 and 14 oscillate, but the spring bar 15 is further deformed into a waveform by the approach of the projecting piece 17 at the intermediate point, and is repelled by a larger restoring force. Is configured to move to the top dead center or the bottom dead center without stopping at the intermediate point.
The state of the top dead center of the support plates 14 and 14 is the ring portion 1 of the support plate.
The state of the bottom dead center of the support plates 14, 14 corresponds to the open position of the support plates 4a, 14a, and the closed position of the ring portions 14a, 14a of the support plate.

At both sides of the back surface of the substrate 12, mounting holes 21, 21 for fixing the binding device 10 to a spine 20 such as a file as a backing sheet are formed. As shown in FIG. 6, the mounting hole forms a straight portion, a reverse taper portion 21a, and a straight portion that are continuous with the chamfered portion of the entrance, and the taper of the reverse taper portion is set to 5 to 10 degrees. . The rivets 22, 22 fitted in the mounting holes 21, 21 are made of resin, and have a reverse tapered portion 2 corresponding to the reverse tapered portion of the mounting hole.
2a is formed. By inserting the rivets 22, 22 in a press-fit state with the attachment holes 21, 21 of the binding device 10 corresponding to the through holes of the spine 20 of the file, the binding device 1
In this configuration, 0 is fixed to a file.

The binding device 10 of the present embodiment has the above-described configuration, and the operation will be described below. This binding device 10 is 2
With the two ring portions 14a, 14a opened, the support plate 1
The spring bar 15 is positioned between the projecting pieces 17 of the substrates 4 and 14.
4a and 14a are inserted. Then, the support plates 14, 14
Is inserted into the substrate 12, and the edge portions 18, 18 are inserted into the groove portions 12.
d, 12d. The binding device 10 can be assembled by such a simple operation.

When the binding device 10 is disassembled, when the ring portions 14a, 14a are opened and pressed downward with respect to the substrate 12, the edge portions 18, 18 of the support plate may be displaced.
It can be disassembled into the substrate 12, the support plates 14, 14, and the spring rods 15 by disengaging from the second grooves 12 d, 12 d. Therefore, when the binding device 10 is discarded, it can be easily separated into metal and plastic.

When the binding device 10 is fixed to the spine 20 of the file, the attachment holes 21 and 2 of the binding device are inserted into the through holes of the spine.
1 and the rivets 22, 22 can be performed by simply inserting the rivets 22 in a press-fit state, and can be fixed very easily. The reverse taper portions 22a of the rivets 22, 22 are inserted into the reverse taper portions 21a of the mounting holes 21, and are firmly joined to fix the binding device 10 to the spine 20 of the file. Also,
When removing the binding device 10 from the file, the rivet 22,
This can be done simply by inserting the tip of a driver between the head of the spine 22 and the spine 20, and removing the rivets 22, 22, for example.

When binding a document or the like to the binding tool 10, grasp the ends of the ring portions 14 a and 14 a with a finger or the like and spread the edge portions 18 and 18 of the support plates 14 and 14 and the groove portions 12 d of the substrate 12. 12d and the supporting plate 1
The support plates 4 and 14 swing upward, and the support plate swings upward while pressing and bending the spring bar 15 by the projecting pieces 17. When the support plates 14, 14 pass through the intermediate point, the spring rod 15
The projecting piece 17 is repelled by the large restoring force of
4 and 14 are urged toward the top dead center side and rocked to be held at the top dead center and open.

The ring portion 14a thus opened is
14a is associated with the binding hole of the form, and the ring portions 14a, 1
When the pin 4a is pinched and closed with a finger or the like, the support plates 14, 14 swing downward in the opposite direction. At this time, the spring bar 15 is pressed against the spring bar 15 so as to press and bend, and the spring bar 15 is opposed to the spring bar 15. As a result, the ring portions 14a, 14a of the support plates 14, 14 come into contact with each other to be in a closed state urged by the elastic force of the spring bar 15. The urging force of the closed ring portions 14a, 14a depends on the diameter of the spring rod 15, the edge portions 18, 18, and the projection 1
By increasing the distance to 7, it is possible to increase the strength.

The ring portion 14 serving as an open / close binding member
Although a and 14a show two examples, three or four can be selected as appropriate. The elastic member is an example of a piano wire, but a spring material such as stainless steel may be used. Needless to say, an elastic member having an appropriate shape such as the above-mentioned spring plate can be used.

[0022]

As described above, according to the present invention,
The number of parts is small, the configuration is simple, and manufacture and assembly are easy. In addition, since the disassembly can be easily performed at the time of disposal and the components can be easily separated, there is an effect that it is possible to provide a binding tool that is compatible with the environment.

[Brief description of the drawings]

FIG. 1 is a front view of an embodiment of a binding device according to the present invention.

FIG. 2 is a side view of a state in which a part of FIG. 1 is broken.

FIG. 3 is a bottom view in which a part of FIG. 1 is omitted.

FIG. 4A is an enlarged sectional view taken along line AA of FIG. 2;
(B) is an enlarged cross-sectional view of the open binding member in the open state of (a), (c) is an operation explanatory diagram of the protruding pieces in the closed state and the open state of the open binding member, and (d) is adjacent to (c). It is operation | movement explanatory drawing of a projection piece.

FIG. 5 is an enlarged perspective view illustrating a main part of a support plate and an open binding member.

FIG. 6 is an explanatory diagram of an operation of fixing a binding device and a spine of a file.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Binding tool 11 Concave part 12 Substrate 13 Notch part 14, 14 Support plate 14a, 14a Opening / closing binding member (ring part) 15 Elastic member (spring bar) 16 Projection part 17 Projection piece 18, 18 Edge part 19 Projection part 20 Mount (file) 21, 21 Mounting holes 21a Reverse taper 22, 22 Rivets 22a Reverse taper

Claims (5)

[Claims] 1. A substrate having a concave portion and extending in a longitudinal direction, and a plurality of substrates slidably provided through a plurality of notches formed symmetrically at both ends in the longitudinal direction of the substrate. These open / close binding members are integrally connected to two longitudinally extending support plates housed in the recesses of the substrate in a swingable manner, and further provided with the plurality of open / close binding members. Characterized in that an elastic member for holding the elastic member in an open position and a closed position is stretched between the two support plates. 2. The binding device according to claim 1, wherein projecting pieces are formed at predetermined intervals at longitudinally opposite edges of the two support plates, and an elastic member is held between the projecting pieces. Utensils. 3. The binding device according to claim 1, wherein the elastic member is a piano wire. 4. The binding device according to claim 1, wherein the binding device is made of a synthetic resin except for a piano wire. 5. A mounting hole having an inverted tapered portion formed adjacent to both ends of the concave portion of the substrate, and the substrate is fixed to the mount by inserting a rivet having an inverted tapered portion into the mounting hole. The binding device according to any one of claims 1 to 4, wherein: