JP3449975B2 - Binder bindings - Google Patents

Description

Detailed Description of the Invention

[0001]

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

[0002]

2. Description of the Related Art As an example of a conventional thick binder binding device, Japanese Unexamined Patent Publication No. 10-297156 discloses a sticking device in which two rods are projected at each side end of a substrate fixed to a spine cover. A rotatable opening / closing plate and a standing wall provided with recesses corresponding to the tips of the rods are integrally formed, and both ends of the base end of the engagement plate provided with engagement holes corresponding to the recesses are provided. There is disclosed a configuration in which the standing wall and the engaging plate are rotatably attached to the outer side of the standing wall, and the standing wall and the engaging plate are sandwiched by a U-shaped spring, and the tip end of the rod body of the standing open / close plate is engaged with the engaging plate. In addition, the file of Japanese Patent No. 2599092,
A base plate fixed to the spine cover, a standing wall that is swingably supported on one side of the base plate and that has two tubular binding rods, and two insertions that are inserted into the tubular binding rods. A holding plate provided with a rod and a lock plate swingably supported on the other side of the base plate and engaged with one end of the holding plate to lock the swing of the standing wall are provided. There is disclosed a binding device provided such that a spring is biased in a direction in which a plate and a plate stand upright. The binding tool, by engaging the holding plate with the lock plate in a state in which the insertion rod of the holding plate is inserted into the tubular binding rod,
The standing wall is locked in the standing position, and on the other hand, the locked state of the standing wall is released by opening the lock plate outward to release the engagement with the holding plate.

[0003]

In the former binding device of the related art, the engagement of the rod body by the engagement hole is disengaged by pushing the finger contact portion of the engagement plate outward. When a large amount of paper is bound and bulges upward from the standing wall, it may be difficult for the fingertip portion to catch the fingertip.
In the latter file binding tool, the binding hole of the document is passed through the tubular binding rod, and then the insertion rod of the holding plate of another component is inserted into the tubular binding rod and the holding plate is engaged with the lock plate. It is undeniable that a situation similar to the former one will occur because it is said.

SUMMARY OF THE INVENTION An object of the present invention is to provide a binder binding tool which is capable of smoothly gripping or releasing a binding rod to be inserted into a binding hole of a document and which is suitable for mass production.

[0005]

In order to achieve the above object, the invention according to claim 1 has a rectangular substrate fixed to the inner surface of a spine, and has one side edge formed on a document or paper. A lock mechanism for freely undulating an opening / closing plate in which two binding rods for insertion into the binding holes are arranged parallel to each other at a predetermined interval, and gripping or releasing the tip of the binding rod at the other side edge of the substrate. A binding tool for a binder in which a side wall portion having a vertical projection is formed, wherein the side wall portion is provided with engaging recesses at locations corresponding to the binding rods, and an intermediate portion of the engaging recesses is formed. The lock mechanism is provided with a notch portion for slidingly guiding the lock release piece forward and backward, and the lock mechanism has an elastic claw piece that intervenes on the rear end side of the engagement recess and an engagement portion that intervenes on the opening side of the engagement recess. A pair of left and right provided with a stop piece and an abutting portion that abuts against the end of the unlocking piece. The lock bodies are housed in the side wall portions, and the lock bodies are provided so as to be biased in a direction toward each other by a spring, and when the lock release pieces are pushed in, the lock bodies move in directions away from each other. The locking piece releases the engaging recess to allow the binding rod to enter and exit, and the elastic claw piece engages with a part of the engaging recess to bring the lock body to that position. On the other hand, when the lock releasing piece is pressed, the opening / closing plate is erected and the binding rod is pressed against the elastic pawl piece so that the elastic pawl piece and a part of the engaging concave portion are held. And the lock body is returned to its original position by the elastic force of the spring, and the locking piece of the lock body is intervened in the opening side of the engagement recess to grip the tip of the binding rod. It is characterized in that it is configured to.

In order to achieve the same object, a second aspect of the present invention is the binder binding device according to the first aspect, wherein the opening / closing plate and the side wall portion are integrally formed of synthetic resin on the substrate. It is characterized by.

[0007]

(Advantageous Effects of the Invention) (Invention of Claim 1) When the lock releasing piece is pushed in, the lock bodies move in directions away from each other, and the locking piece of the lock body releases the engagement concave portion of the side wall portion. It is possible to enter and exit the binding rod. Then, the elastic claw piece engages with a part of the engaging concave portion to hold the lock body at that position.

When the lock releasing piece is pushed in, the opening / closing plate is erected and the binding rod is pressed against the elastic claw piece, so that the elastic claw piece and a part of the engaging recess are engaged with each other. When released, the lock body returns to its original position by the elastic action of the spring. Then, since the locking piece of the lock body intervenes on the opening side of the engagement concave portion, the tip end portion of the binding rod is reliably gripped.

(Invention of Claim 2) In this binder binding tool, since the opening / closing plate and the side wall can be integrally formed on the substrate by the synthetic resin, the production can be efficiently performed.

This binder binding tool is excellent in usability because it can smoothly hold or release the binding rod inserted into the binding hole of a document. In addition, since it has a simple structure, it is easy to assemble and suitable for mass production.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. 1 is a perspective view of the binding device showing a state in which the binding rod is released, FIG. 2 is a perspective view of the binding device in a locked state in which the binding rod is held, FIG. 3 is an exploded perspective view of the binding device, and FIG. FIG. 5 is a vertical sectional side view of the lock mechanism portion, FIG. 5 is a vertical sectional side view showing a locked state of the lock mechanism, and FIG. 6 is a perspective view of the binder.

The binder 1 shown in FIG. 1 has a thin hinge 4 on one side edge 2a of a rectangular substrate 2 having a mounting hole 3 for fixing the binder to the inner surface of the spine. An opening / closing plate 5 in which two binding rods 6, 6 having a circular cross section are arranged in parallel at a predetermined interval for insertion into a binding hole formed in a document or a paper sheet via the is provided up and down. On the other side edge 2b of the substrate 2, a side wall portion 7 provided with a later-described lock mechanism 15 for gripping or releasing the tip portion of the binding rod 6 is vertically provided. As shown in FIG. 3, the side wall portion 7 has a hollow inside, and U-shaped engaging recesses 8 are formed at locations corresponding to the binding rods 6 and 6, and the engaging recesses 8 are formed. , 8 is provided with a square notch 9 in the middle thereof. The substrate 2, the opening / closing plate 5, and the side wall portion 7 are integrally formed of synthetic resin. Reference numeral 10 denotes an opening formed on the rear end side of the engaging recess 8, and reference numeral 11 denotes an opening formed on the notch 9 from the opening side to the rear end side. Reference numerals 12 and 12 denote elongated hole-shaped guide grooves formed on the outer surface 7a of the side wall portion 7 in the longitudinal direction toward the substrate 2.

In FIG. 4, reference numeral 15 is a lock mechanism.
A pair of left and right synthetic resin lock bodies 1 of the lock mechanism 15
6, the elastic claw piece 17 for intervening on the rear end side of the engaging recess 8 is arranged substantially in the center, and the locking piece 18 for intervening on the opening side of the engaging recess 8 is arranged on the outside. On one side, an inclined surface 19 as an abutting portion to be brought into contact with the end portion of the lock releasing piece 25, which will be described later, is arranged, and is integrally formed of synthetic resin. 17a
Is a claw formed on the upper surface slightly inward of the tip of the elastic claw piece 17. Then, one side surface 16 of the lock body 16
A protrusion 20 for loosely fitting in the guide groove 12 of the side wall portion 7 is formed in a, and a hook 21 is integrally provided at a lower portion of the inclined surface 19.

Reference numeral 25 denotes a lock releasing piece having a substantially vertically long H-shape when viewed from the front, and the end faces 27, 27 of the finger hooking portion 26 formed in the central portion are loosely fitted between the inner end surfaces 9a of the cutout portions 9 and slidable. In addition to being provided so as to be freely movable, end portions 28, 28 for contacting the inclined surface 19 of the lock body 16 from the respective end surfaces 27, 27 are respectively provided in a protruding manner. The ends 28, 28 are formed so as to be loosely fitted in the opening 11 of the notch 9.

As shown in FIGS. 2 and 5, the unlocking piece 2
After 5 is loosely fitted in the notch 9 of the substrate 2, the lock bodies 16, 16 are housed in the side wall portion 7, and the protrusions 20 of the lock bodies 16 are loosely fitted in the guide grooves 12. Then, the springs 30 are attached to the hooks 21, 21 of the lock bodies 16, 16 and are biased in a direction in which they approach each other, and the inner end surface 16b of each lock body 16 contacts the rear end surface 11a of the cutout portion 9. Provide it so that it touches. In this state, the locking piece 18 of the lock body 16 is provided so as to close the opening side of the engagement concave portion 8. The lock mechanism 15 is configured as described above.

Next, the operation of the binder 1 of the binder will be described. When the lock release piece 25 is pushed in, the two lock bodies 16, 16 are moved in the directions in which the inclined surfaces 19, 19 are pushed by the end portion 28 of the lock release piece 25 and separated from each other (FIG. 4). As a result, the locking piece 18 of the lock body 16 releases the engagement recessed portion 8 of the side wall portion 7, so that the binding rod 6 can be moved in and out. At this time, the elastic nail piece 1
Since the claw 17a of No. 7 engages with the inner wall 8a which is a part of the engaging recess 8, the lock body 16 is held at that position.

When the unlocking piece 25 shown in FIG. 4 is pushed in, when the opening / closing plate 5 is erected and the binding rods 6, 6 are pressed against the elastic claw pieces 17, 17, each elastic claw piece 17 is pressed.
The engagement between the claw 17a and the inner wall 8a of the lock body 1 is released.
6, 16 are returned to their original positions by the elastic action of the spring 30. Then, the locking pieces 18, 18 of the respective lock bodies 16, 16
Intervene on the opening side of the engaging recesses 8,8, the binding rings 6,6
The tip end of the open / close plate is securely gripped, and the upright posture of the opening / closing plate 5 is maintained.

FIG. 6 shows a state in which the substrate 2 of the binding tool 1 is attached to the inner surface of the spine cover b of a known synthetic resin binder a by means of a tack c passed through the attachment hole 3.

As described above, this binder binding tool is very convenient because it can smoothly hold or release the binding rod inserted into the binding hole of a document. In addition, since it has a simple structure, it is easy to assemble and suitable for mass production.

[Brief description of drawings]

FIG. 1 is a perspective view of a binding device showing a state in which a binding rod is released.

FIG. 2 is a perspective view of the binding device showing a locked state in which the binding rod is held.

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

FIG. 4 is a vertical sectional side view of a lock mechanism portion.

FIG. 5 is a vertical sectional side view showing a locked state of the lock mechanism.

FIG. 6 is a perspective view of a binder

[Explanation of symbols]

a → binder b → spine 1 → binding tool 2 → substrate 2a → one side edge 2b → other side edge 5 → opening / closing plate
6-> binding rod 7-> side wall 8-> engagement recess 8a-> inner wall (part of engagement recess) 9-notch 15-> lock mechanism 16-> lock body 17-> elastic claw piece 17a-> claw 18
→ Locking piece 19 → Inclined surface (abutting part) 25 → Unlocking piece 28 → End 30 → Spring

Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) B42F 13/12-13/14

Claims (2)

(57) [Claims] 1. A pair of binding rods for inserting into binding holes formed in a document or a sheet are arranged in parallel at one side edge on one side edge of a rectangular substrate fixed to an inner surface of a spine cover. A binder binding device in which a side wall having a lock mechanism for gripping or releasing the tip of the binding rod is vertically provided on the other side edge of the substrate. The side wall portion is provided with engaging recesses at locations corresponding to the binding rods, respectively, and a notch portion for slidingly guiding an unlocking piece forward and backward is provided at an intermediate portion of the engaging recesses. Is a resilient claw piece that intervenes on the back end side of the engaging recess, an engaging piece that intervenes on the opening side of the engaging recess, and an abutting portion that abuts on the end of the unlocking piece. The pair of left and right lock bodies provided is housed in the side wall portion, and the lock bodies are spring-loaded. When the lock release pieces are pushed in, the lock bodies move in the directions away from each other so that the locking pieces release the engagement recesses and the binding rod enters and Provided that both of the escapes are possible, the elastic claw piece is provided so as to engage with a part of the engagement concave portion to hold the lock body at that position, while the lock release piece is pushed in. In the case where the opening / closing plate is erected and the binding rod is pressed against the elastic claw piece, the engagement between the elastic claw piece and a part of the engaging concave portion is released, and the lock body is moved by the elastic action of the spring. A binder binding tool characterized in that the binding piece of the binder is configured to be returned to the original position, and the locking piece of the locking body is intervened in the opening side of the engagement recess to hold the tip of the binding rod. 2. The binder binding device according to claim 1, wherein the opening / closing plate and the side wall portion are integrally formed on the substrate with a synthetic resin.