JPH08337088A - Loose-leaf binding tool - Google Patents

Abstract

PURPOSE: To provide a loose-leaf binding tool. having mechanism, with which opening and closing operations can be easily performed without feeling any resistance, which does not wear even after a large number of times of the opening and closing operations and surely keeps favorable closed state of binding rings. CONSTITUTION: The loose-leaf binding tool 10' consists of a fixed base plate 20' having binding ring pieces 21 and a recess, a movable base plate 30 having binding ring pieces 31 abutting against the binding ring pieces 21, and an opening and closing member 40' having projections 41 and a projecting part 45. The recess of the fixed base plate 20' and the projecting part 60 of the opening and closing member 40' serve as a closing keeping mechanism at the closing of the binding rings.

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 loose leaves having a plurality of binding holes along one edge, and more particularly to loose leaf type albums, notebooks and transparent film storage bags. , And other similar binding devices for binding the same.

[0002]

2. Description of the Related Art Conventionally, various loose-leaf binders have been provided. Generally, a binding ring holds a large number of loose-leafs by abutting symmetrical semicircular binding ring pieces. Is configured. There are various opening / closing methods for opening / closing the binding ring piece.

[0003] For example, a method of separating the binding ring pieces by pressing the holding portions of both ends of the metal substrate, or a method of pivoting one substrate with respect to the other substrate using one end as a fulcrum to bind the binding ring. There is a way to open and close the piece.

However, the loose-leaf binding device which adopts these opening / closing methods simply contacts the binding ring pieces,
Disadvantages, such as not being able to reliably hold the binding ring pieces against each other for long-term use, and troublesome operation of the mechanism that locks the binding ring pieces in the collision state, and troublesome opening and closing operations. was there. Therefore, the applicant of the present application has filed a loose-leaf binding device in which the binding ring pieces are fixed in a state in which they exert an appropriate force on each other and the lock is easily opened and closed to solve these drawbacks. That is illustrated in FIGS.

The loose-leaf binding device 10 is, as shown in FIG.
It is mainly composed of a fixed substrate 20 having a binding ring piece 21, a movable substrate 30 having a binding ring piece 31 that abuts the binding ring piece 21, and an opening / closing member 40 having a protrusion 41 and a minute recess 44.

As shown in FIG. 2, the fixed board 20 is provided with a plurality of binding ring pieces 21 and an engaging portion piece 22 provided on the upper surface of the fixed board 20 for holding the movable board 30 in combination to limit the movement thereof.
And a fine groove 23 that is moved by inserting the engaging projection 41 of the opening / closing member 40, a minute convex piece 24 provided on the back surface, and a screw hole 28 for attaching to the cover sheet with a screw. The engagement piece 22 is supported by a pillar 25 extending from the surface of the substrate. Further, projections 26 and recesses 27 are alternately provided at the tip of the binding ring piece 21.

The movable substrate 30, as shown in FIG.
1. A binding ring piece 31 that abuts 1 and an engaging portion piece inserting portion 32 that is provided on the back surface of the substrate 30 and into which the engaging portion piece 22 is inserted.
And an inclined groove 33 into which the engaging projection 41 of the opening / closing member 40 is inserted and moves. As shown in FIG.
As shown in (c), a groove 34 into which the pillar 25 of the fixed substrate 20 enters is provided. Further, the tip of the binding ring piece 31 is provided with a recess 36 and a projection 37 that abut against the projection 26 and the recess 27 of the binding ring piece 21.

As shown in FIG. 4, the opening / closing member 40 has a hook shape so as to prevent the fixed substrate 20 and the movable substrate 30 from being disassembled together with the engaging portion piece 22 and the engaging portion piece insertion portion 32 after assembly. (It is understood that the engaging protrusion 41 can be seen from the back surface in (c)).
Two engaging projections 4 adapted to be caught on the edge of
1, a finger rest projection 43 for moving the opening / closing member 40 with a finger, a micro recess 44 into which the micro projection 24 fits, and a base 45 having a screw avoiding slot 46. It Fixed substrate 20, movable substrate 30, and opening / closing member 40
Are integrally molded from plastic or the like.

The engaging portion 22 of the fixed substrate 20 is attached to the movable substrate 3
After inserting the fixed board 20 and the movable board 30 in a predetermined manner by inserting the fixed board 20 and the movable board 30 into the engaging part piece insertion section 32 of 0, the individual engaging projections 41 of the opening / closing member 40 correspond to the narrow grooves 23 of the fixed board 20. Then, the assembly is completed by inserting it into the slant groove 33 of the movable substrate 30 and hooking the engaging projection 41 on the edge of the narrow groove 23.

5 (a) and 5 (b) are plan views showing the loose leaf binding device 10 in the closed state and the open state, respectively. In this configuration, when the finger rest convex portion 43 is pulled, the narrow groove 23 and the oblique groove 33 in which the engagement protrusion 41 is layered are stacked.
As shown in FIG.
In 3, the movable substrate 30 moves to the right with respect to the fixed substrate 20 by moving to the lower left. As a result, the binding ring piece 21,
31 opens. On the contrary, when the opening / closing member 40 is pushed, the operation opposite to the pulling operation is performed, and the binding ring piece 21, which has been opened,
31 closes. When the opening / closing member 40 is pushed to the end, the minute convex pieces 24 elastically fit into the minute concave portions 44, and the movement of the opening / closing member 40 is restricted. At this time, the binding ring piece 21 and the binding ring piece 3
Since 1 and 1 exert an appropriate force on each other, the state of tightly abutting with each other is maintained (FIG. 5 (a)).

[0011]

However, in this configuration, before and after the engagement of the minute concave portion 44 and the minute convex piece 24, that is, when the opening and closing member 40 is pushed and pulled, the minute convex piece 24 and the opening and closing member 4 are formed.
In order to engage and disengage against the friction with the side surface 47 of No. 0, an extra force is required so that the user feels resistance. The user usually wants to operate smoothly without feeling resistance. In addition, in relation to this, since the minute convex pieces 24 are slidably engaged with and disengaged from the minute concave portions 44, they are easily worn, and as necessary, they may be composed of minute pieces, so that rubbing portions are Worn out, binding ring 2
In some cases, the closed state of 1, 31 could not be maintained.
Therefore, an object of the present invention is to easily perform opening / closing operations without feeling resistance, to prevent wear even after a large number of opening / closing operations, and to reliably maintain a preferable closed state of the binding ring at the time of closing. A loose leaf binding device having an opening / closing mechanism is provided.

[0012]

The loose-leaf binding device of the present invention comprises a plurality of first binding rings standing up at a predetermined interval, and a plurality of first binding rings provided on the upper surface so as to project in a direction transverse to the longitudinal direction. A fixed substrate having a restricting piece, an elongated hole extending in the longitudinal direction that penetrates the front and back surfaces, a second binding ring that is erected in the same number so as to be able to collide with the first binding ring, and the second binding ring formed on the back surface. A restricting part insert part into which the restricting part is slidably inserted, a movable substrate having a slanting groove in a superposed relationship with the elongated hole, and a post-assembled penetrating the elongated hole and being inserted into the slanting groove. An engaging projection that moves the elongated hole and the slant groove at the same time in a state where they are always overlapped to move the movable substrate with respect to the fixed substrate so that the binding ring opens and closes; Loose with open / close member made of elastic material In the halves binding device, the closed state of the binding ring is surely maintained when closed, and the opening of the first binding ring and the second binding ring is possible by pushing down and pulling out the finger contact convex portion when opening. The feature is that it has a mechanism. According to a second aspect of the loose-leaf binding device of the present invention, the mechanism is configured such that the protrusion is provided adjacent to the finger contact protrusion of the opening / closing member and the protrusion fits when the binding ring is closed. When the finger contact protrusion is pressed down by providing a gap between the concave portion provided on the fixed substrate and the surface on which the binding device is attached so that the finger contact protrusion can be pressed down, the protrusion and the And a bottom surface of the finger-resting convex portion configured to be freely engaged with and disengaged from the concave portion. Third loose-leaf binding device of the present invention
According to the aspect, when the binding ring is closed, it is possible to easily fit the protrusion and the recess by simply pushing the finger-contacting protrusion in the horizontal direction without pressing down. And

[0013]

With this structure, the opening / closing operation can be easily performed without feeling a resistance, it is not worn even after many opening / closing operations, and the preferable closed state of the binding loop is surely maintained at the time of closing. Such an opening / closing mechanism can be provided.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The loose-leaf binding device of the present invention will be described in detail with reference to FIGS. 1 to 5 except for the characteristic part of the present invention and the part to be described in detail.
Since the configuration is substantially the same as that shown in FIG. 3, the description of the above-mentioned prior application example will be referred to, and the reference numbers will be the same numbers for the discussion. Regarding the modified parts and members, "'" is added to the instruction number.

FIG. 6 shows a loose-leaf binder 10 'of the present invention.
FIG. This loose leaf binding 10 '
Mainly, the binding ring piece 21 and the recess 50 (FIGS. 7C and 11)
A fixed base plate 20 'having a fixed base plate 20', a movable base plate 30 having a binding ring piece 31 that abuts the binding ring piece 21, and an opening / closing member 40 'having a protrusion 41 and a protrusion 60.
The recess 50 and the protrusion 60 of the opening / closing member 40 'are configured to function as a closing maintaining mechanism when the binding ring is closed.

The fixed substrate 20 'shown in FIG. 7 is similar to the above-mentioned prior application example of the present applicant, but instead of the minute convex piece 24 of the prior application example shown in FIG. As shown in FIG. 3, the recess 50 is provided. In addition, the fixed substrate 2
As shown in FIG. 11, 0'is provided with a projection 51 having an inclined surface 52 in addition to the recess 50. The movable substrate 30 shown in FIG. 8 is substantially the same as the prior application example of FIG.
The opening / closing member 40 ′ shown in FIG. 9 has a protrusion 60 having an inclined surface 61 near the finger contact protrusion 43 as shown in FIGS. 6 and 11, instead of the minute recess 44 of the prior application example of FIG. Is provided. In addition, the opening / closing member 40 ′ includes the details 42 to the base 4 as shown in FIGS. 9B and 9D and FIG. 11.
The same thickness up to 5 ′ is thinned as it approaches the finger contact convex portion 43, and the inclined surface 47 is formed. The opening / closing member 40 'is made of plastic or the like so as to have elasticity.

FIGS. 10A and 10B are views showing the closed state (a) and the open state (b) of the binding device of the present invention similar to the prior application example of FIG. 11A and 11B are cross-sectional views taken along the line segment AA of FIG. 12
(A), (b), (c) shows sectional drawing when it cut | disconnects by the line segment BB of FIG. 10 (a), CC, and DD, and it sees in the direction of an arrow, respectively. 13 (a) and 13 (b)
10A and 10B are respectively a rear view and a rear view of FIG.

When the binding ring pieces 21 and 31 are released, the finger contact convex portion 43 is lightly pressed downward as shown in FIG. 11 (b) to release the engagement between the concave portion 50 and the protruding portion 60, and the arrow E When pulled to, the binding ring pieces 21 and 31 are opened as shown in FIG. On the contrary, when closing, if the opening / closing member 40 'is simply pushed in, the slanted surface 52 and the slanted surface 61 slide and the protrusion 60 is pushed down by the protrusion 51, and then is restored by elasticity to recover the protrusion. 60 is fitted into the recess 50 and locked. An alternative to the frictional force, which made the user feel a resistance in the previous application, is the pushing force of the finger-resting protrusion 43, which is to be depressed only by placing the finger on the finger-resting protrusion 43. This enables smooth operation without causing the user to feel any resistance.

[0019]

This portion is a feature of the present invention, in which the recess 50 of the fixed base plate 20 'and the protrusion 60 of the opening / closing member 40' engage with each other to provide a closure maintaining mechanism when the binding ring is closed. To do. With this structure, the opening / closing mechanism can be easily opened and closed without feeling a resistance, does not wear even after a large number of opening / closing operations, and has a opening / closing mechanism that surely maintains a preferable closed state of the binding ring when closing. The object of the invention of providing a loose leaf binding is achieved.

While we have shown and described what is presently considered the preferred embodiment of the invention, those skilled in the art will appreciate that
It will be apparent that various changes and modifications can be made without departing from the spirit of the invention. All such changes and modifications should be included in the technical idea of the present invention.

[Brief description of drawings]

FIG. 1 is an exploded plan view of a conventional loose-leaf binding device.

2 (a) is a plan view of the fixed substrate of FIG.
(B) is its rear view, (c) is its rear view, and (d) is its front view.

FIG. 3 (a) is a plan view of the movable substrate of FIG.
(B) is its rear view, (c) is its rear view, and (d) is its front view.

FIG. 4A is a plan view of the opening / closing member of FIG.
(B) is its rear view, (c) is its rear view, and (d) is its front view.

FIG. 5 is a plan view showing a state of the binding ring of the loose-leaf binding device of FIG. 1 when (a) closed and (b) opened.

FIG. 6 is an exploded plan view of a loose-leaf binding device according to the present invention.

7 (a) is a plan view of the fixed substrate of FIG.
(B) is its rear view, (c) is its rear view, and (d) is its front view.

8A is a plan view of the movable substrate shown in FIG.
(B) is its rear view, (c) is its rear view, and (d) is its front view.

9 (a) is a plan view of the opening / closing member of FIG.
(B) is its rear view, (c) is its rear view, and (d) is its front view.

FIG. 10 is a plan view showing a state in which the binding ring of the loose-leaf binding device of FIG. 6 is closed (a) and opened (b).

11A is a cross-sectional view taken along the line AA of FIG. 10 and is a cross-sectional view showing an engaged state when the binding ring is closed,
FIG. 6B is a cross-sectional view showing a state in which the finger contact protrusion is pushed down from the state of FIG.

12 (a), (b), and (c) are respectively FIG.
The sectional view when it cut | disconnects by the line segment BB of FIG. 9A, CC, and DD, and it sees in the direction of an arrow is shown.

13 (a) and (b) are respectively FIG. 10 (a).
FIG. 3 is a rear view and a rear view of FIG.

[Explanation of symbols]

 10, 10 'Loose leaf binding device 20, 20' Fixed substrate 21, 32 Binding ring piece 22 Engagement piece 23 Fine groove 24 Small convex piece 25 Struts 26, 37 Binding ring piece tip projection 27, 36 Binding ring piece Recessed part of the tip part 28 Screw hole 30 Movable substrate 32 Engagement part piece insertion part 33 Oblique groove 34 Groove 40, 40 'Opening / closing member 41 Engagement protrusion 42 Detail 43 Finger contact protrusion 44 Micro recess 45, 45' Base 46 Avoid screw Long hole 47 Side surface of opening / closing member 50 Recessed portion 60 Protruded portion

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[Procedure amendment]

[Submission date] June 20, 1995

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 6

[Correction method] Change

[Correction content]

[Figure 6]

Claims (3)

[Claims] 1. A plurality of first binding rings that stand up at a predetermined interval, a plurality of restricting pieces provided on the upper surface so as to project in a direction transverse to the longitudinal direction, and in the longitudinal direction that penetrates the front and back surfaces. A fixed base plate having elongated elongated holes, a second binding ring that is erected in the same number so as to be able to collide with the first binding ring, and a regulation member that is formed on the back surface and is slidably inserted into each regulation piece. A movable substrate having a piece insertion portion, a slant groove that overlaps with the elongated hole, and penetrates the elongated hole after assembly and is inserted into the slant groove so that the elongated hole and the slant groove are always superimposed. And an opening / closing member formed of an elastic material having an engagement protrusion that moves the movable substrate with respect to the fixed substrate so that the binding ring opens and closes with respect to the fixed substrate, and a finger contact protrusion. For loose-leaf bindings that have been combined, the closure loop must be closed when closed. A state that surely maintains the state, and at the time of opening, by pushing down and pulling out the finger contact convex portion to enable opening of the first binding ring and the second binding ring, a mechanism is provided. Loose leaf binding. 2. The mechanism includes a protrusion provided adjacent to a finger contact protrusion of the opening / closing member, and a recess provided in the fixed substrate so that the protrusion fits when the binding ring is closed. , By having a gap between the surface to which the binding device is attached so that the finger contact protrusion can be pressed down, when the finger contact protrusion is pressed down, the engagement between the protrusion and the recess becomes free. The loose-leaf binding device according to claim 1, further comprising: 3. When the binding ring is closed, it is possible to easily fit the protrusion and the recess by simply pushing in the horizontal direction without pushing down the finger contact protrusion. The loose-leaf binding device according to 2.