JPH0825830A - Opening and closing tool of double ring - Google Patents

Abstract

PURPOSE:To correct hunting by opening a double ring easily, by a method wherein a connecting piece of a double ring is bent back at the same time by the first claw group and second claw group. CONSTITUTION:When a movable plate 12 is pushed down under a state wherein a connecting part joining a connecting piece of a double ring is put on a horizontal part 19a of the tip of a claw part for pulling-up the second claw group 15, the whole of the double ring is pulled up to a base 11 by hooking the connecting part of the connecting piece of the double ring by a horizontal tip part 19a of the tip of the pulling-up claw part. At that time, a pulling-down claw part 18 of the first claw group 13 is moved downward oppositely to an upward movement of the pulling-up claw part 19 and a hook 18 of the tip of the pulling-down claw part is caught on the tip part of the connecting piece. When the movable plate 12 is kept pushing down after that, the pulling-down claw part 18 and pulling-up claw part 19 are moved respectively downward and upward so as to leave a space between them further, the connecting piece is bent back in a developing direction, consequently a space between its tip part and base part is widened and rebinding is performed from the space.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double-ring opening / closing device, and more particularly, to a large number of sheets that can be turned through a large number of holes formed in a straight line on one side of a sheet. The present invention relates to a device that opens and closes a cylindrical double ring that is bundled so that sheets can be attached and detached.

[0002]

2. Description of the Related Art In a calendar or a sketchbook, for example, a large number of sheets can be separated and independent from each other, and in order to improve the usability, a page turned over together with a cover is a page that is in use. It is already well known that the sheets are bound so as to be reversible so that they are orderly overlapped on the margin side.

In order to enable a large number of sheets to be sequentially reversed and piled up on the back side in this way, it is conventionally necessary to use a sheet shown in FIG.
As shown in FIG. 3, each sheet 1 is linearly aligned on one side thereof to form a large number of holes 2, and these holes 2 are used to form a bundling tool 3 called a double ring as shown in FIG. It is also well known that it is closed by.

The double ring 3 is formed by bending a wire rod in a zigzag shape when viewed two-dimensionally as shown in FIG. 5, and thereby sequentially forming a predetermined gap (the same gap as the binding hole of the sheet 1). A plurality of locking pieces 4 formed integrally and in parallel by bending in a U-shape in the same direction are further bent into a circular shape as shown in FIG. 4 to form a ring-shaped locking piece 4.
The method of bundling a large number of sheets 1 using the double ring 3 is not limited to the sketchbook described above, but is also used for ordinary notebooks and the like for its convenience and is used for many purposes.

[0005]

By the way, as a method for manufacturing a calendar, a sketchbook, etc. which are constructed by binding with such a double ring 3, conventionally, as shown in FIG. Sequentially, the combs 5 are formed in the same shape as the holes 2 formed in the sheet 1 by bending the U-shape at the same intervals as the holes 2 formed in the sheet 1 to form the locking pieces 4. Therefore, each locking piece 4 in the comb-like body 5 is connected to the adjacent locking piece 4 at its base, and the wire portion connecting the locking pieces 4 to each other is referred to as a connecting portion 6.

Then, a predetermined number of sheets of paper 1 are inserted into the holes 2 of the cover sheet (not shown) and the U-shaped engaging pieces 4 of the comb-like body 5 are relatively inserted and locked. Then, each U-shaped locking piece 4 of the comb-shaped body 5 is further bent into a ring shape to form the comb-shaped body 5 into a cylindrical body as shown in FIG.

A calendar, sketchbook, etc. of this kind are manufactured in this way, but the double ring 3
If there is irregularity in the paper 1 or the cover that is bound in the above, conventionally, using pliers or the like, the bending of each ring-shaped locking piece 4 in the doubling 3 is slightly restored to make a gap, The paper was correctly bound from this gap.

Then, after the sheets have been correctly bound, the locking pieces 4 are bent again into a perfect ring shape so that the bound sheets will not come off. In this way, if the paper that has been once bound into the double ring 3 has irregularity, etc., the work of recovering it is extremely troublesome, and a tool that can easily open the double ring 3 and take out the paper can be used. Development was desired.

An object of the present invention is to solve such a conventional problem, and a double-ring opening / closing tool capable of simultaneously opening a large number of ring-shaped locking pieces in a double-ring in which sheets are bound. To provide.

[0010]

The present invention is a double-ring opening / closing tool, which is configured as follows in order to solve the above-mentioned technical problems. That is, according to the present invention, one wire is U-shaped or V-shaped in the same direction sequentially at a predetermined interval.
By bending it into a letter shape, a large number of locking pieces that are integrated and arranged in parallel are formed. Each of them is bent into a ring shape, and these many ring-shaped locking pieces are aligned linearly on one side of the paper. Open and close the double ring that returns the bend of the locking piece to the extent that the paper locked to this double ring can be detached A tool, wherein one end of each of the board and the board approaches each other,
Movable plates that are combined in a horizontal V shape with the other ends separated from each other and hinged to each other, and a first claw group and a second claw group provided at one end of each of the substrate and the movable plate. And a first claw group provided at one end of the substrate is composed of a large number of pulling claws arranged in a comb shape in the width direction of the substrate at a predetermined interval, A second claw group provided at one end of the movable plate is composed of a large number of pull-up claws arranged in a comb shape in the width direction of the movable plate at predetermined intervals, and the pull-down claw is provided. Each have a hook shape in which each of them rises upward and the tip thereof is bent downward, and each of the pull-up claws extends downward through a gap between the pull-down claws, Is formed to have an L-shape that is bent substantially horizontally. (Corresponding to claim 1). Hereinafter, each component will be described.

(Prerequisite of the present invention) The double ring which the opening / closing tool of the present invention is intended to use means to bend one wire in a U-shape or V-shape in the same direction sequentially at a predetermined interval. A large number of locking pieces integrally and arranged in parallel with each other are formed by bending each into a ring shape, and these many ring-shaped locking pieces are formed in a straight line on one side of the sheet. A large number of sheets are passed through a large number of holes and bundled so that pages can be turned. Usually, the wire rod forming such a double ring is made of metal.

(Substrate and Movable Plate) The substrate and the movable plate are combined in a horizontal V shape with one end approaching each other and the other end separating from each other, and are hinged to each other. It is preferable for use that a displacement force is applied to the substrate and the movable plate by a spring so that one ends of the substrates and the movable plate always come close to each other.

Therefore, when the other end of the movable plate is pushed down against the spring force and brought close to the other end of the substrate, the movable plate is moved by pivoting relative to the hinge fixing portion with respect to the substrate. Both ends of the plate as well as the substrate can be opened like mouths. Then, when the pressing force applied to the other end of the movable plate is released, the movable plate pivots about the hinge stop portion by the spring force, and the original state is restored again, that is, the other ends of the movable plate and the substrate are separated from each other. And, the state returns to the state where one ends are close to each other. It is preferable that both the movable plate and the substrate are made of a metal plate in terms of strength.

(First Claw Group and Second Claw Group) As described above, the movable plate is moved toward and away from each other by the relative pivoting of the movable plate with respect to the substrate by applying and releasing the pressing force to the other end of the movable plate. A first claw group and a second claw group are provided at one ends of the substrate and the substrate, respectively. Therefore, the first pawl group and the second pawl group are moved toward and away from each other by the above-described pivotal movement of the movable plate. The above-mentioned double ring is opened and closed by the approaching / separating operation of the first claw group and the second claw group.

(Claw portion for pulling down and claw portion for pulling up) The first claw group provided at one end portion of the substrate has a large number of pull down claws arranged in a comb shape in the width direction of the substrate at a predetermined interval. The second claw group provided at one end of the movable plate is composed of a large number of pulling claws arranged in a comb shape in the width direction of the movable plate at predetermined intervals. ing.

Each of the pulling-down claws has a hook shape in which the tip of the pulling-up claws rises upward and is bent downward, and each of the pulling-up claws extends downward through a gap between the pulling-down claws. However, it is formed in an L-shape with its tip bent substantially horizontally.

<Additional Structure of the Present Invention> The doubling opening / closing tool of the present invention is composed of the above-mentioned essential components, but is also established when the components are specifically as follows. The additional component is that the first claw group and the second claw group provided at one end of the substrate and the movable plate are formed at the tip of a separate plate, respectively. The plate is detachably attached to one end of the substrate and the movable plate (corresponding to claim 2).

As described above, when the separate plate having the first and second claw groups formed at the tips is detachably attached to one end of the substrate and the movable plate, one opening / closing tool is used. Double rings with different lengths can be used by exchanging with a special plate, and the mutual spacing of the ring-shaped locking pieces (corresponding to the number of binding holes formed in the paper, Different double rings with different numbers of holes can also be used by replacing with special plates in the same manner.

Further, in the double-ring opening / closing tool according to the present invention, a pair of caulking members for bending back the opened double ring into a ring shape are provided on the inner facing surfaces located on the other end side of the hinge portion between the substrate and the movable plate. It is also preferable to install (corresponding to claim 3). In this way, if a caulking body is also installed in the opening / closing tool, the operation from opening the doubling to bending back to the ring shape can be performed with one device.
It is preferable to form a large number of fine grooves on the surface of the crimped body so that the double ring does not slip.

[0020]

According to the double-ring opening / closing tool of the present invention, the double-ring in which the sheets are bound is arranged at the base of the opening / closing tool and at one end of the movable plate. At that time, the double ring places the connecting portion, which connects the locking pieces bent in a ring shape at their bases, on the horizontal portion of the tip of the lifting claw of the second claw group, The tip portion is arranged so as to wrap around to the lower side thereof.

When the other end of the movable plate is pushed down in this state, the movable plate pivots with respect to the substrate, and a large number of pulling claws forming a second claw group provided at one end of the movable plate are removed. As a result, the horizontal tips of the lifting claws hook the locking piece connecting portions of the double ring and lift the entire double ring.

At that time, a large number of the pulling-down claws forming the first claw group located above the pulling-up claws move downward relative to the upward movement of the pulling-up claws and pull up. It passes through the inside of the U-shape of the locking piece at a place where it passes the engaging claw portion, and then descends downward and the hook at the tip of each pulling claw portion is caught on the tip portion of each locking piece.

If the other end of the movable plate continues to be pushed down after that, the pull-down claws hooked on the tips of the locking pieces of the double ring and the pull-up claws hooked on the connecting portions of the locking pieces are removed. The locking pieces, which are respectively moved downward and upward so as to be further spaced apart, thereby bending the ring-shaped locking pieces of the double ring back in the deploying direction, and as a result, the distance between the tip and the base is increased. The sheets are unfolded and the sheets are re-stitched from this interval.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A double ring opening / closing tool according to the present invention will now be described in more detail with reference to the embodiments shown in the drawings. 1 and 2 show a double-ring opening / closing tool 10 according to an embodiment of the present invention.

Double-ring opening / closing tool 10 of this embodiment
Is the substrate 11 and one end portion 11a with respect to the substrate 11,
The movable plates 12 are joined to each other in a horizontal V-shape and have their other ends 11b and 12b separated from each other and are hinged to each other. These substrates 11
The movable plate 12 and the movable plate 12 are preferably formed of a metal plate in terms of strength.

At one end 11a, 12a of the substrate 11 and the movable plate 12, respectively, a metal plate 14 having a first claw group 13 formed at the tip and a second claw group 15 formed at the tip. The metal plate 16 and the screw 17
It is attached so that it can be removed.

The first claw group 13 at the tip of the plate 14 attached to the one end 11a of the substrate 11 is spaced apart from the ring-shaped locking pieces 4 of the double ring 3 shown in FIG. The pull-down claw portions 18 are arranged in a comb shape in the width direction.

On the other hand, the second claw group 15 at the tip of the plate 16 attached to the one end 12a of the movable plate 12 has a connecting portion 6 connecting the ring-shaped locking pieces 4 of the double ring 3.
It is composed of a large number of pulling claws 19 arranged in a comb shape in the width direction of the movable plate 12 at the same intervals.

As can be clearly understood from FIG. 3, each of the pull-down claw portions 18 has a hook shape in which it rises upward and its tip is bent downward (the hook-shaped tip is indicated by reference numeral 18a). ing. Further, the lifting claw portion 19
L extends downward through the gap between the pull-down claws 18 and has a tip 19a bent substantially horizontally.
It is formed in a letter shape.

As shown in FIG. 1, the substrate 11 and the movable plate 1
2, a spring 21 is arranged near the hinge portion 20, so that the other end portion 11 of the substrate 11 and the movable plate 12 is provided.
A spring force is applied in the direction in which b and 12b are separated from each other. In other words, the spring force acts on the substrate 11 and the movable plate 12 in a direction in which the one ends 11a and 12a of the substrates 11 and 12a always come close to each other.

Further, the base plate 11 which constitutes the opening / closing tool 10 is a pedestal part 11 which extends as it is from one end part 11a.
c is formed. As is apparent from FIGS. 1 to 3, a double ring positioning plate 23 having comb portions 22a formed at the same intervals as the pulling-up claw portions 19 which form the second claw group 15 is provided on the mount portion 11c. The comb 22a is installed so that the tip of the comb 22a abuts the tip 19a of the pull-up claw 19.

Next, a method of using the double-ring opening / closing tool 10 according to this embodiment will be described. Double ring 3
If there is any misalignment on the paper 1 bound on
As shown in FIG. 3, each ring-shaped locking piece 4 of the double ring 3 is provided with a groove portion 22 between the comb portions 22 a of the positioning plate 23.
b, and the connecting portion 6 connecting each locking piece 4 is connected to the horizontal tip portion 1 of each pull-up claw portion 19 in the second claw group 15.
The double ring 3 is arranged by using the positioning plate 23 so as to be placed on 9a. However, in Figure 3, double ring 3
The sheets and the like bound to are omitted.

As a result, the double ring 3 is fixed to each locking piece 4
Is arranged so that the front end portion thereof wraps around and is positioned below the second claw group 15. After that, when the other end 12b of the movable plate 12 is pushed down in this state, the movable plate 12 pivots with respect to the substrate 11, and the second claw group 15 provided at the one end 12a is formed. The lifting claws 19 are lifted, and accordingly, the horizontal tips 19a of the lifting claws 19 hook the respective locking piece connecting parts 6 of the double ring 3 to lift the entire double ring 3.

At this time, a large number of the pull-down claws 18 constituting the first claw group 13 located above the pull-up claws 19 are moved downward relative to the upward movement of the pull-up claws 19. The hook 18a at the tip of each pulling claw 18 is moved to pass through the U-shape of the locking piece 4 at a position where it passes the pull-up claw portion 19, and then the hook 18a at the tip of each pull-down claw portion 18 is attached to the tip portion of each locking piece 4. Get caught in.

If the other end 12a of the movable plate 12 is continuously pushed down thereafter, the pulling claws 18 caught on the tips of the locking pieces 4 of the double ring 3 and the connecting portions 6 of the locking pieces 4 are caught. The hooking claws 19 that have been hooked move downward and upward, respectively, so as to further space them, and as a result, the locking pieces 4 that are bent in the ring shape in the double ring 3 are as shown in FIG. It is opened in the developing direction, and as a result, the space between the tip and the base of the locking piece 4 widens.

Then, when the sheet is opened to the extent that the sheets can be re-stitched, the lowering of the other end 12a of the movable plate 12 is released. After correcting the irregularity from the double ring 3 thus opened, each locking piece 4 is bent back into a ring shape in order to return the double ring 3 to the original cylindrical shape again.

Therefore, the doubling 3 partially opened
As a means to easily recover the original cylindrical state,
In this double-ring opening / closing tool 10, a pair of caulking bodies 24a and 24b are attached to inner facing surface portions on the other end side of the hinge portion 20 between the substrate 11 and the movable plate 12, respectively. The pair of caulking bodies 24a, 24 face each other,
When the other end of the movable plate 12 is pushed down, the one caulking body 24 attached to the inner side surface of the movable plate 12 is the substrate 1.
It comes close enough to come into contact with the other caulking body 24b attached to the inner side surface of No. 1.

Therefore, the double ring 3 partially opened by the above-mentioned opening / closing tool 10 for rebinding the sheets.
After correcting the binding of the sheets, the sheet is placed on the caulking body 24a attached to the substrate 11 with the open portion facing sideways, and the movable plate 12
When the other end of the double ring 3 is pushed down, the double ring 3 is bent back to the original ring shape while being pressed by the pair of crimping bodies 24a and 24b.

On the surfaces of the caulking bodies 24a and 24b,
A large number of fine grooves are formed in the direction orthogonal to the longitudinal direction of the double ring 3 so as to prevent the locking pieces from falling down so that the pressing force is accurately applied in the radial direction when the double ring 3 is pressed.

In the above-described embodiment, each locking piece 4 of the double ring 3 is formed by bending a wire into a U shape, but even if the double ring is bent into a V shape, the main opening / closing operation is performed. It goes without saying that the tool 10 can be opened and closed.

[0041]

As described above, according to the double-ring opening / closing tool of the present invention, a large number of U-shaped ring-shaped locking pieces constituting the doubling are provided on the first claw group and the second claw group. By simultaneously bending back with the nail group of
If the paper bound in the double ring has misprints, the double ring can be easily opened to correct the misprint. As a result, it is possible to significantly reduce the working time for correcting misalignment of the sheets bound in the double ring, and it is possible to improve the efficiency.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing an opening / closing tool for a double ring according to an embodiment of the present invention.

FIG. 2 is a front view showing an opening / closing tool for the double ring shown in FIG.

3 is an enlarged partial perspective view of one end of the double-ring opening / closing tool shown in FIG. 1. FIG.

FIG. 4 is a perspective view partially showing a double ring formed by bending a wire rod.

5 is a partial plan view showing a state in which the double ring shown in FIG. 4 is expanded and shown in a plane state, and a state in which sheets are bound to the double ring.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Paper 2 Hole 3 Double ring 4 Locking piece 5 Comb 6 Connection part 10 Opening / closing tool 11 Base plate 11a One end part 11b Other end part 11c Frame part 12 Movable plate 12a One end part 12b Other end part 13 First claw group 14 Plate 15 Second claw group 16 Plate 17 Screw 18 Pulling claw 18a Tip hook of pulling claw 19 Pulling claw 19a Horizontal tip of pulling claw 20 Hinge 21 Spring 22a Comb 22b Groove 23 Double Ring positioning plate 24a Crimping body 24b Crimping body

Claims (3)

[Claims] 1. A plurality of locking pieces integrally and arranged in parallel are formed by sequentially bending one wire material in a U-shape or V-shape in the same direction at predetermined intervals, and each of them is formed into a ring. The double ring that bends in a circular shape, and passes these many ring-shaped locking pieces through a number of holes formed by lining them up on one side of the paper in a straight line A double-ring opening / closing tool that restores the bending of the locking piece to such an extent that the paper locked in the ring can be detached and attached, wherein one end of each of the board and the board approaches the other end, and the other end A movable plate which is combined with each other in a lateral V shape and is hinged to each other, and a first claw group and a second claw group provided at one end of each of the substrate and the movable plate, A first claw provided at one end of the substrate Is composed of a large number of pull-down claw portions arranged in a comb shape in the width direction of the substrate at a predetermined distance, and a second claw group provided at one end of the movable plate has a predetermined distance. It is composed of a large number of pulling claws that are opened and arranged in a comb shape in the width direction of the movable plate. Further, each of the pulling-up claw portions extends downward through a gap between the pulling-down claw portions, and a tip end thereof is formed to have an L-shape bent substantially horizontally. A double ring opening / closing tool. 2. The first claw group and the second claw group provided at one end of the substrate and the movable plate are respectively formed at the tips of separate plates, and these plates are The double-ring opening / closing tool according to claim 1, wherein the opening / closing tool is detachably attached to one end of the substrate and the movable plate. 3. A pair of caulking bodies for bending back the opened double ring into a ring shape are provided on inner facing surfaces on the other end side of the hinge portion between the substrate and the movable plate. Ring opening and closing tool.