JPH0546482U - Binder fittings - Google Patents

Abstract

(57) [Abstract] [Purpose] To obtain a binder metal fitting that surely achieves the operation of the binding claw lock device. A loop-shaped elastic cut-and-raised portion that presses and contacts both side edges in the longitudinal direction of a holding plate constituting the locking device 40 toward a binding jaw connecting operation member that elastically operates when opening and closing the binding jaw. 58 is provided. As a result, the holding plate 44 is stably engaged with the coupling actuating member when opening and closing the binding claw, and the lock portion 42 held by the holding plate is accurately engaged with the binding claw opening and closing lever. The lock portion 42 is the engagement portion 4
It is constructed so that it can be erected and fallen via 6

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a binder fitting configured to open and close a split binding jaw.

[0002]

[Prior Art]

 Generally, as shown in FIG. 9, a binder metal fitting of this type has a plurality of split binding claws 12 which are curved along both end portions of a binder substrate 10 having a flat semicircular cross section and which are erected so as to face each other. The binding claws 12 are engaged with both side ends of the binder substrate 10 and are connected to a connecting actuating member 14 which undulates in a mountain-valley shape (see FIGS. 11 and 12), and the connecting actuating member 14 is provided at its longitudinal end. The facing binding claw 12 is opened and closed by performing an up-and-down operation via the provided cross-shaped opening and closing lever 16. It should be noted that the opening / closing lever 16 may be provided only at one end of the binder metal fitting, instead of being provided at both ends thereof. Further, the binder metal fitting is caulkedly mounted on the file mount 22 (see FIGS. 10 and 11) by mounting screws 20 through three screw holes 18a, 18b and 18c which are usually provided at both ends and the center.

However, in this kind of binder metal fitting, when the binding amount increases, the binding claw may be inadvertently released, and the bound sheets may drop out. Therefore, in order to prevent this, the opening / closing lever is generally provided with a lock device.

That is, in FIGS. 9 and 11 and 12, one opening / closing lever 16 is provided with a locking device 24, and this locking device 24 is engaged with the opening / closing lever 16 (in the illustrated example, Is supported between the locking portion 26 that locks the binding claw closing position (FIG. 11) (through the lever knobs 16a, 16a) and the coupling operating member 14 and the file mount 22 while holding this locking portion 26. And a holding plate 28. In the illustrated locking device 24, the lock portion 26 is fixedly erected on the holding plate 28, and the holding plate 28 is spaced from the mounting screw 20 by the gap 1 through the insertion long hole 28a. By the movement, the lock portion 26 is configured to move between the closed position (the position indicated by the solid line in FIG. 9) and the open position (the position indicated by the broken line), and the lock device is configured in this way. Alternatively, the holding plate may be fixedly supported, and the lock portion may be configured to stand upright and fall down with respect to the holding plate.

[0005]

[Problems to be solved by the device]

 However, the conventional locking device has the following drawbacks.

That is, the binding claw 12 is opened by pulling the tabs 16a, 16a of the opening / closing lever 16 to each other (FIG. 12), while the binding claw open ends 12a, 12a are pulled to each other in this state. However, this operation is achieved by the elastic undulating operation of the connecting actuating member 14 which is press-held on both inner surfaces of the binder substrate 10. However, here, the holding plate 28 of the locking device 24 is contacted with and positioned by the connecting actuating member 14 through, for example, the contacting wall portions 28b, 28b which are provided upright on both end edges thereof. The height of the contact portion is different between the undulating states of the connecting actuating member 14 (a gap 28b ″ is generated in the mountain-like state of the connecting actuating member), and the connecting actuating member 14 is elastically operated as described above. Therefore, there is a backlash in the holding plate 28. Therefore, as shown by the arrow in Fig. 11, the lock part 26 may sway left and right and may not be inserted between the lever knobs 16a and 16b, that is, the lock device 24 may not operate. It often happened.

[0007] Therefore, an object of the present invention is to provide a binder fitting capable of locking the closing position of the binding claw with certainty without causing play during opening / closing operation of the binding claw.

[0008]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the binder metal fitting according to the present invention is the binder metal fitting for opening and closing a plurality of split binding claws connected to a binder substrate via a connection operation member by an opening / closing lever. An opening / closing lever lock device is provided, which includes a lock portion that engages with the opening / closing lever to lock the binding claw closing position, and a holding plate that holds the locking portion and is supported between the connecting operation member and the file mount. The holding plate is configured to press and elastically engage with the connecting operation member.

In this case, the means for pressing and elastically attaching the holding plate to the connecting operation member is a loop-shaped elastic cutting member which is cut and raised toward the connecting operation members provided on both side edges of the holding plate in the longitudinal direction. It can be composed of a raised portion.

In addition, the structure of the lock device is such that the lock portion is fixedly erected on one end of the holding plate, and the holding plate is slidably moved with respect to the coupling operation member and the file mount to lock the lock device. Part is configured to move between the open / close positions of the open / close lever, or the holding plate is fixedly supported with respect to the connecting operation member and the file mount, and the lock part is snapped upright with respect to the holding plate. The lock portion can be configured to be set to the open / close position of the opening / closing lever by falling down.

[0011]

[Action]

 The holding plate of the locking device is pressed and elastically engaged with the connecting operation member via the elastic cut-and-raised portion of the loop shape. Therefore, the holding plate does not rattle against the coupling actuating member even when the coupling actuating member is elastically undulated as the binding claw is opened and closed. That is, since the lock portion does not rock to the left and right, the lock device operates reliably.

[0012]

【Example】

 Next, an embodiment of the binder fitting according to the present invention will be described in detail below with reference to the accompanying drawings. For convenience of explanation, the same components as those of the conventional components shown in FIGS. 9 to 12 are designated by the same reference numerals, and detailed description thereof will be omitted.

First, the present invention relates to a device for substantially locking the closing position of the binding claw in the binder fitting, and therefore the construction of the binder fitting itself has been described with reference to FIG. 9 or FIG. 10 to FIG. Since this is the case, the description is omitted here.

Therefore, an embodiment of the locking device according to the present invention will be described below. Here, in the embodiment shown in FIGS. 1 to 7, as described below, the locking portion is upright with respect to the holding plate, It is configured to be able to fall over.

That is, the lock device 40 includes a lock portion 42 and a holding plate 44, which are joined together by the joining portion 46. The lock portion 42 is formed of a rectangular plate body, is provided between the reinforcing rims 42a, and receives the opening / closing lever knobs 16a and 16a in the closed position and the receiving portion 48 that protrudes from one side and the connecting portion 46a on the lock portion side. And a hinge portion 50 that forms a rotation. The holding plate 42 is composed of a holding plate-side connecting portion 46b and a main body portion 52, and the connecting portion 44b is a cantilever elastic supporting portion 54 which extends insulatively from the main body portion 52 and both side portions of the supporting portion. The holding plate 42 is provided with a shaft supporting portion 56 that pivotally supports the hinge portion 50. The holding plate 42 has a loop-shaped elastic cut-and-raised portion 58 provided at both end edges in the longitudinal direction and two holding portions provided at the center of the main body portion. It has screw holes 60a and 60b.

In such a configuration, first, in the coupling portion 44, when the lock portion 42 is in the laid-down state, the hinge portion 50 is stabilized on the elastic support portion 54, as clearly shown in FIG. Is carried. Therefore, as shown in FIG. 6, when the lock portion 42 is rotated to stand upright, the hinge supporting portion 54 is flexibly urged by the hinge corner portion 50a, and when the lock portion 42 passes the position shown in the drawing, the hinge portion 50 is elastically supported. By the urging force of 54, the lock portion 42 snaps upright as shown in FIG. 7, and stably holds this state. On the contrary, the same snap effect is exerted when the user falls from the upright position.

Next, in the holding plate 44, the holding plate is supported between the connection operating plate 14 and the file mount 22, and is elastically undulated when the binding claw 12 is opened and closed. The connecting actuating plate 14 is contacted in its valley-shaped state (FIG. 4) and chevron-shaped state (FIG. 5). Even if the height of the contact portion changes at this time, the holding plate 44 is Since the elastic cut-and-raised portions 58 that elastically expand and contract are provided on both sides thereof, a stable support state is maintained for the connecting operation member 14 as shown in the figure. Incidentally, in the conventional device, as shown in FIG. 12, since the gap 28b ″ is formed between the facing wall portion 28b of the holding plate and the connecting actuating plate 14, the elastic force of the connecting actuating plate 14 is increased. As described above, backlash is generated in the holding plate due to the operation.In the present embodiment, the two screw holes 60a and 60b are provided, but this is the binder of the screw holes at both ends. This is because the distance L from the edge (see FIG. 9) is set to L1 and L2 depending on the paper sizes B5 and C4, respectively.

As can be seen from the above description, according to the present invention, the holding plate 44 is operated by the opening / closing operation of the binding claw 12 (in other words, regardless of the elastic movement of the connecting operation member 14). Since the support state for the member does not change, the opening / closing lever knob 16a is accurately held in the insertion portion 48 of the lock portion when the lock portion 42 stands upright. That is, the operation of the locking device 40 is reliably achieved. Moreover, since the upright or falling operation of the lock portion is stably performed in a snap manner, the lock operation or the release thereof can be easily performed.

Next, FIG. 8 shows another embodiment of the locking device according to the present invention. In this embodiment, the locking portion is fixed to the holding plate. That is, the locking device 70 is composed of a holding plate 72 and a locking portion 74 which is upright and fixed to the holding plate 72. Here, the structure of the lock portion 74 is substantially the same as that of the lock portion 42 in the above-mentioned embodiment, but the holding plate 72 is provided with the screw insertion long hole 76 in the central portion thereof, and the connecting operation member 14 ( Sliding stroke 1 with respect to (not shown) moves lock 74 between open and closed positions. Even in this case, since the holding plate 72 stably maintains the supporting state with respect to the connecting actuating member via the loop-shaped elastic cut-and-raised portions 78 provided on both side edges thereof, the locking device 70 operates reliably. It is clear that The lock portion and the holding plate of these lock devices can preferably be integrally formed of a plastic material.

The present invention has been described above with reference to the preferred embodiments, but the present invention is not limited to the above embodiments, and many design changes can be made without departing from the spirit thereof. For example, as a matter of course, the lock portion can be arranged so as to be interposed between the opening / closing levers as shown in FIGS. 9 to 12.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of a binder metal locking device according to the present invention.

FIG. 2 is a sectional view taken along line II-II of the locking device shown in FIG.

FIG. 3 is a side view showing a state in which a lock portion of the lock device shown in FIG. 1 is upright.

FIG. 4 is a lateral cross-sectional view showing a state in which the binding claw of the binder fitting equipped with the locking device shown in FIG. 1 is closed.

5 is a lateral cross-sectional view showing a state in which the binding claws of the binder fitting equipped with the locking device shown in FIG. 1 are opened.

FIG. 6 is an enlarged cross-sectional view explaining the operation of the engaging portion when the lock portion of the lock device shown in FIG. 1 is operated upright.

7 is an enlarged cross-sectional view illustrating a state of an engaging portion when the lock portion of the lock device illustrated in FIG. 1 is upright.

FIG. 8 is a perspective view showing another embodiment of the binder metal locking device according to the present invention.

FIG. 9 is a perspective view showing a conventional locking device in a binder fitting.

FIG. 10 is a perspective view of the conventional locking device shown in FIG.

11 is a sectional view taken along line XI-XI of FIG.

FIG. 12 is a cross-sectional view showing a state in which a binding claw similar to that in FIG. 11 is opened.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 Binder board 12 Binding claw 12a Open end 14 Connection actuating member 16 Opening / closing lever 16a Pick 22 File mount 40 Lock device 42 Lock part 42a Reinforcement rim 44 Holding plate 46 Joining part 46a Lock part side joining part 46 Holding plate side joining part 48 Receiving portion 50 Rotating hinge portion 50a Corner portion 52 Main body portion 54 Cantilever elastic supporting portion 56 Hinge shaft supporting portion 58 Loop-shaped elastic cut-and-raised portion 60a, 60b
Screw hole 70 Lock device 72 Holding plate 74 Lock part 76 Screw insertion long hole 78 Loop-shaped elastic cut-and-raised part

Claims (6)

[Scope of utility model registration request] 1. A binder metal fitting that opens and closes a plurality of split binding claws that are connected to a binder substrate via a coupling actuating member via an opening / closing lever, and engages with the opening / closing lever to lock the binding claw closing position. An opening / closing lever lock device including a lock portion for holding the lock portion and a holding plate that holds the lock portion and is supported between the connecting operation member and the file mount is provided, and the holding plate presses against the connecting operation member. A binder fitting configured to be elastically attached. 2. A means for pressingly and elastically attaching the holding plate to the connecting actuating member is a loop-shaped elastic cut-and-raised member which is cut and raised toward the connecting actuating members provided on both side edges in the longitudinal direction of the holding plate. The binder fitting according to claim 1, wherein the binder fitting is formed of a portion. 3. The lock portion is fixedly erected at one end of the holding plate, and the holding plate slides in contact with the connecting operation member and the file mount so that the lock portion moves to the open / close position of the open / close lever. The binder fitting according to claim 2, wherein the binder fitting is configured to move between them. 4. The holding plate is fixedly supported with respect to the coupling actuating member and the file mount, and the locking part snaps upright and falls with respect to the holding plate so that the locking part opens and closes the opening / closing lever. The binder fitting according to claim 2, wherein 5. The binder fitting according to claim 4, wherein a supporting position for fixedly supporting the holding plate with respect to the connecting operation member and the file mount is configured so that a distance from the holding end of the lock portion can be changed. 6. A holding means for holding the lock portion so as to stand upright and fall down with respect to the connecting member and the file mount, and a cantilevered elastic supporting portion provided on the holding plate and press and rotate to the elastic supporting portion. 5. The binder fitting according to claim 4, wherein the binder fitting comprises a rotating hinge portion provided on the lock portion.