JP2000118182A - Loose-leaf filing tool with lock - Google Patents

Abstract

PROBLEM TO BE SOLVED: To permit the maintaining of lock surely by a method wherein a pushing member restraining the mutual aperture of two pieces of mutually intersecting operating knobs attached to one end of two sheets of substrate, having semi-circular filing rings and whose inner sides are abutted against each other, is provided. SOLUTION: Slender substrates 1, 2, abutted against each other through the inner sides thereof, are provided integrally with a plurality of semi-circular filing rings 3, 4, abutted against each other. Further, operating knobs 10, 11 are extended from respective one end parts orthogonally and obliquely substantially with respect to the direction of an axial line so as to be intersected with each other. A pushing sheet 17 is provided so as to cover the outer surface of the operating knob 10. The operating knobs 10, 11 and the pushing sheet 17 are arranged so as to be contacted with each other or to remain very small gaps among them. According to this method, the positional relation of the operating knobs 10, 11 is regulated so as not to be separated so that the retaining piece 16 will not run out of a retaining projection 15 by the restriction of the pushing sheet 17 even when the operating knobs 10, 11 are pushed by an external force in the direction of the axial line.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a loose-leaf binding device of the type which opens and closes a binding ring resiliently by an operation knob. The present invention relates to a loose-leaf binding device with a lock for preventing a detachment accident.

[0002]

2. Description of the Related Art Frequently, accidents occur in which a binding ring is opened incorrectly and a loose leaf falls off due to vibration or impact applied during operations such as transportation, transshipment, and exhibition. In order to eliminate such an accident, the present inventor proposed a loose-leaf binding device with a lock in Japanese Patent Publication No. 5-88680. Briefly, the binding device of the publication has a plurality of semi-annular binding rings 3 and 4 which can abut each other as shown in FIGS. The substrate 1 and the second substrate 2, and the metal elastic sheath 7 that restrains both outer sides of the substrates 1 and 2 and allows the binding rings 3 and 4 to be opened and closed by resilient vertical movement of the substrates 1 and 2. A first operation knob 11 and a second operation knob 10 attached to the first and second substrates 1 and 2 at one end of both substrates 1 and 2 and formed so as to cross each other. The knob 11 is fixed to the first substrate 1, the second operation knob 10 is pivotally attached to the second substrate 2,
The first operation knob 11 has a locking projection 15, and the second operation knob can be locked to the locking projection 15 by pivoting in the locking direction, while being locked by the pivoting in the ring opening direction. 15 is a loose-leaf binding device having a locking piece 16 that can be released from the fixing leaf 15.

In this binding device with a lock, after closing the binding ring with a finger, the second operation knob 10 is pivoted from the state of FIG. 4 to the state of FIG. If it is locked, there is no danger that the binding ring will open accidentally and the loose leaf will fall out due to vibration or shock applied during the work of transporting, reloading, displaying, etc. the binder binding the loose leaf, while replacing the loose leaf When the operation knobs 10 and 11 are pushed in the directions of each other to release them, the locking pieces 1
6 has an advantage that the operability is good because it can be easily removed from the locking projection 15.

[0004]

However, the locking piece 16
The operation knob 1
It is necessary to maintain the close relationship between 0 and 11; however, when both operation knobs are pushed or pushed away from each other by an external force, the locking pieces 16 and the locking projections 15 need to be maintained in the locked state. In some cases, it was found that there was a problem of disengagement. Therefore, an object of the present invention is to provide a loose-leaf binding device provided with a locking means capable of reliably maintaining a lock. Another problem is that the operation knob 10 is
When the operation knobs 10 and 11 are pushed in the opposite directions to open the binding ring (open state corresponding to the state of FIG. 9 showing the binding device of the present invention) since the operation knobs 10 and 11 are pivotally attached to each other.
There is a problem of rattling, and there is a problem that the opening force is not evenly applied and it is difficult to open.

[0005]

SUMMARY OF THE INVENTION The present invention comprises a first and a second substrate having a plurality of semi-annular binding rings which can abut each other and abutting each other on the inner side; An elastic sheath that restrains both outer sides to allow opening and closing of the binding ring by resilient up and down movement of the substrate; The first operation knob is fixed to a first substrate, the second operation knob is pivotally attached to the second substrate, and the first operation knob The knob has a locking projection, and the second operation knob locks the locking projection by pivoting in the locking direction and releases the locking piece from the locking projection by pivoting in the ring opening direction. In connection with the improvement of loose leaf binding devices, Characterized in that a suppressing pressing member mutual spacing of the operation knob. From the inside to the outside as viewed in the axial direction of the two substrates, the first operation knob,
The pressing member, the second operating knob, and the first operating knob may be arranged in the order of the second operating knob and the pressing member, or may be arranged from inside to outside as viewed in the axial direction of the two substrates.
They are arranged in the order of the operation knobs. In this manner, release of the lock due to relative tilting of the two operation knobs or separation from each other due to external force is prevented by sandwiching the pivoted second operation knob from both sides thereof. The pressing member may be fixed to the first substrate or the second substrate, may be fixed to the first operation knob or the second operation knob, or may be used in combination.
Further, preferably, the first operation knob is provided with a projection protruding toward the second projection, and an upper edge of the second operation knob is formed in an arc shape that slides on the regulating projection. As a result, the second operating knob applies an opening force evenly to the arc-shaped edge of the first operating knob by pressing the projection, so that the binding ring can be opened smoothly. further,
Preferably, a rib for fixing to a lower edge of the second operation knob when the substrate is at the open position of the binding ring is fixed to the first substrate. This eliminates wobbling of the second operation knob that is pivotally mounted.

[0006]

Next, an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 5 is a plan view of a loose-leaf binding device provided with a lock mechanism according to the present invention, FIG. 6 is a left side view, and FIG. The elongated first substrate 1 and the second substrate 2 which abut each other on the inner side have a plurality of semi-annular binding rings 3 and 4 which can abut each other, respectively.
An elastic sheath 7 is attached to both outer sides 5 and 6 of the base 2 so as to restrain them and allow the binding rings 3 and 4 to be opened and closed by resilient vertical movement of the substrates 1 and 2. Substrates 1, 2 having both outer sides as pivots
The upward movement of is restricted by a plurality of stopper members 18 and 19 integrally provided along the inner sides of the butted surfaces of the substrates 1 and 2 as shown in FIG. This is spell ring 3,
4 corresponds to the open state. The downward movement of the substrates 1 and 2 is regulated by the binding rings 3 and 4 abutting each other. This is the closed state of the bindings 3 and 4.

The lock section will be described with reference to FIGS. At one end of the first substrate 1 and the second substrate 1, a first operation knob 11 and a second operation knob 10 are respectively substantially perpendicular to the axial direction (axial direction) of both substrates 1 and 2 and to the substrates. Extend diagonally and intersect each other. The first operation knob 11 is fixed to the first substrate 1, and the second operation knob 10 is pivotally attached to the second substrate 2 by having a pivot 20 that fits into the shaft hole 21 of the second substrate 2. First
The operation knob 11 has a locking projection 15 on the upper surface side, and the second operation knob 10 can be locked to the locking projection 15 by pivoting in the locking direction, while being locked by pivoting in the ring opening direction. It has a locking piece 16 that can be released from the projection 15. 1
Reference numerals 0 'and 11' are finger hooks for operating the operation knobs 10 and 11, respectively.

In the illustrated example, a first operation knob 11 and a second operation knob 10 are arranged in this order from inside to outside as viewed in the axial direction, and a holding plate 17 is provided so as to cover the outer surface of the second operation knob 10. Have been. These three members are arranged so as to be in contact with each other or to have a very small gap, so that the first and second operation knobs 11 and 10 may be pushed in the axial direction by an external force. The position is regulated by the pressing plate 17 so that the first and second operation knobs do not separate from each other and the locking piece 16 is detached from the locking projection 15. As can be seen from FIGS. 13 and 14, the holding plate 17 is integrally supported by a support rib 22 integrally formed with the first substrate.

As can be seen from FIGS. 8 to 14, preferably, the first operating knob 11 further has a regulating projection extending into a notch 13 provided on the outer surface (as viewed in the axial direction) of the second operating knob 10. It has 14. The notch 13 is formed in an arc shape along the upper edge of the second operation knob 10, and the notch 3,
At the time of opening / closing operation of No. 4, the engagement state of the notch and the regulating protrusion 14 is maintained. The upper edge of the arc of the second operation knob 10 is preferably in sliding contact with the bottom of the recess provided in the regulating projection 14, so that when the two operation knobs are pushed in the mutual direction, the second operation knob 10 An opening force is transmitted to the first operation knob 11 via the regulating protrusion 14, whereby an even opening action is given to both operation knobs, and a smooth opening operation is obtained.
Preferably, a support member 22 provided between the first substrate and the inner surface of the holding plate 17 is further provided with a stop member 23 so that an end thereof is positioned close to the inclined lower surface of the second operation knob 10. . The end of the stop member 23 reaches the lower position 24 of the second operation knob just in the open position of FIG. Thereby, the wobble of the second operation knob 10 is prevented.

As another embodiment, a first operation knob 11 is provided.
The positional relationship between the and the second operation knob 10 in the axial direction may be reversed, and the holding plate 17 may be positioned inside the second substrate. As another embodiment, the holding plate 17 may be omitted and only the regulating protrusion 14 and the arc-shaped notch 13 may be used. Conversely, the regulating protrusion 14 and the arc-shaped notch 13 may be omitted and only the holding plate 17 may be used. May be used, and the above-described configurations can be appropriately combined.

The operation of the loose-leaf binding device having the illustrated structure according to the present invention will now be described. As shown in FIG. 9, the loose-leaf binding is performed with the substrates 1 and 2 displaced upward and the binding rings 3 and 4 opened. It is attached to the ring, and then the binding rings 3 and 4 are pushed in the direction of each other with a finger and closed in the direction of FIG. In this state, even when the binding is closed, the second operation knob 10 pivots around the pivot 20, so that the locking piece 16 is not yet locked to the locking projection 15. Then, when the second operation knob 10 is pushed down by pushing down the finger rest 10 ′, these parts 15 and 16 are engaged to be in a locked state. In this state, even if a force for expanding the binding is applied, the locking force is superior, so the binding is not opened and the loose leaf is prevented from falling off. Next, when it is desired to release the binding, simply press the finger hooks 10 'and 11' of the operation knobs in the respective directions so that the locking pieces 16 easily come off from the locking projections 15. 2 moves resiliently to the upper position to close the binding rings 3,4. During the movement and the locking, the second operation knob 10 is always kept close to the first operation knob 11 by the pressing plate 17 and the regulating projection 14, so that both operation knobs are caused by an undesired external force or an assembly error. 10 and 11 locking projections 15 and locking pieces 1
There is no danger that the member 6 will not be engaged or will be disengaged from the engaged state.

[0012]

As described above, according to the present invention, the locking piece 16 is provided.
Can secure and maintain the lock by the locking of the locking projections 15, so that there is no possibility that the loose leaf will come off during transportation, display, transshipment and the like.

[Brief description of the drawings]

FIG. 1 is a front view of a conventional binding device.

FIG. 2 is a plan view of an end of a conventional binding device.

FIG. 3 is a sectional view taken along line BB of FIG. 2;

FIG. 4 is a front view similar to FIG. 1 showing a state where a lock of a conventional binding device is unlocked.

FIG. 5 is a plan view of the binding device according to the embodiment of the present invention.

FIG. 6 is a left side view of the binding device according to the embodiment of the present invention.

FIG. 7 is a bottom view of the binding device according to the embodiment of the present invention.

FIG. 8 is an enlarged front view of the closed state of the binding device according to the embodiment of the present invention.

FIG. 9 is an enlarged front view of the binding device in an open state according to the embodiment of the present invention.

FIG. 10 is an enlarged plan view of an end portion of the binding device according to the embodiment of the present invention.

FIG. 11 is an enlarged side view of an end portion of the binding device according to the embodiment of the present invention.

FIG. 12 is an enlarged bottom view of an end portion of the binding device according to the embodiment of the present invention.

FIG. 13 is an enlarged front view of an end portion of the binding device according to the embodiment of the present invention.

FIG. 14 is an enlarged front view showing an exploded end portion of the binding device according to the embodiment of the present invention.

FIG. 15 is an enlarged sectional view taken along line BB of FIG. 5;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 1st board | substrate 2 2nd board | substrate 3, 4 Binding ring 5, 6 Outer side of a board | substrate 7 Elastic sheath 8 axis | shaft 10 2nd operation knob 10 ', 11' Finger hook 11 1st operation knob 13 Notch 14 Regulation protrusion 15 Lock Projection 16 Locking piece 17 Pressing plate 18, 19 Stopper member 20 Axis 21 Shaft hole

Claims (9)

[Claims] 1. A first and a second substrate each having a plurality of semi-annular binding rings which can abut with each other and abutting each other on an inner side, and restraining both outer sides of the both substrates by restraining the first and second substrates. An elastic sheath that allows the binding ring to be opened and closed by a resilient vertical movement of the substrate; and a first elastic member attached to the first and second substrates at least at one end of the two substrates and intersecting each other. And a second operation knob.
An operation knob is fixed to a first substrate, the second operation knob is pivotally attached to the second substrate, the first operation knob has a locking projection, and the second operation knob is pivotally movable in a locking direction. A loose-leaf binding device having a locking piece that can be locked to the locking projection by movement and can be released from the locking projection by pivoting in a ring opening direction, wherein the first and second knobs are separated from each other; A loose-leaf binding device provided with a holding member for suppressing pressure loss. 2. The binding device according to claim 1, wherein the first operation knob, the second operation knob, and the pressing member are arranged in this order from inside to outside as viewed in the axial direction of the two substrates. 3. The pressing member, the second operation knob, and the first operation knob are arranged from inside to outside as viewed in the axial direction of the two substrates.
2. The binding device according to claim 1, wherein the bindings are arranged in the order of the operation knobs. 4. The binding device according to claim 1, wherein the pressing member is fixed to the first substrate. 5. The binding device according to claim 1, wherein the pressing member is fixed to the second substrate. 6. The binding device according to claim 1, wherein the pressing member is fixed to the first operation knob. 7. The binding device according to claim 1, wherein the pressing member is fixed to the second operation knob. 8. The first operating knob is provided with a regulating projection projecting toward the second projection, and an upper edge of the second operating knob is formed in an arc shape that slides on the regulating projection. Item 8. The binding device according to any one of Items 1 to 7. 9. The binding device according to claim 1, wherein a rib that locks to a lower edge of the second operation knob when the substrate is at an open position of a binding ring is fixed to the first substrate. Utensils.