JP2557072Y2 - Binder binding tool - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the structure of a binder.

[0002]

2. Description of the Related Art Conventionally, a binder binding tool 1 as shown in FIGS. 6 and 7 is generally used. The binder binding device 1 includes a pair of movable substrates 3, 5 manufactured by plastic molding and pivoted along an inner edge thereof, and has a free end along an outer edge of each movable substrate 3, 5 with an abutting surface. 9, a plurality of binding ring members 7 are formed facing each other. The pair of movable substrates 3 and 5 further includes a sheath-like elastic plate 1.
1, the outer peripheral portion thereof is supported, and thereby, by manually operating the operating knobs 13, 15 integrally formed at one or both ends thereof, the respective binding ring members 7, 7 are connected to the abutting surface 9
It can be pivoted resiliently to open and close.
However, the binder binding tool of such a structure, in a state binding Ji write loose-leaf or the like attached to the binder cover, particularly on the binding ring portion, thus in the case of packed transported loose-leaf down, during transport The binding ring may open due to vibration or impact and the weight of the loose leaf itself, and the loose leaf or the like may fall off the binding ring and fall. In order to prevent such a drop, a long projection is provided on one of the abutting surfaces of the binding ring members facing each other, and a long hole (not shown) for receiving the long projection is provided on the other, so that when the binding ring is opened. A binder binding tool having a configuration in which a loose leaf or the like hooks on the long protrusion was manufactured. However, also in this case, in order to close the opened binding ring member, it is necessary to temporarily return the loose leaf hooked on the long projection to the binding ring.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to provide a binder binding device which can save the trouble as described above and can more effectively prevent a loose leaf or the like from dropping than the prior art.

[0004]

According to the present invention, a loose leaf or the like is hooked on the peripheral portion of the abutment surface of each binding ring member to prevent it from dropping, and is hooked there. A projection is formed toward the radial inside of the binding ring so that the loose leaf does not disturb the closing operation of the binding ring member.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to FIGS. FIG. 1 shows a part of the binding ring members 10 and 12 according to the present invention. The binding ring members 10, 12 are attached to a pair of movable substrates 3, 5 or other substrates so as to be openable and closable as shown in FIGS. 6 and 7, and these binding ring members are formed from a plastic material, and their free ends. Are formed with abutment surfaces 14, 16 as in the prior art.

In the present invention, the binding ring members 10 and 12
Protrusions 22 and 24 are formed around the free ends 18 and 20 at portions radially inward of the binding ring, respectively. More specifically, as shown best in FIG. 2, the protrusions 22, 24 are formed such that a part of each of the abutment surfaces 14, 16 is extended a fixed distance inward in the radial direction of the binding ring, and the lowermost end thereof is formed. These are ends 26 and 28, respectively. Then these ends 2
From positions 6 and 28, the ascending surface is gradually raised along a binding ring member toward a position A, B outside of the abutment surface by a predetermined distance, preferably at a horizontal angle or more, preferably at an angle equal to or greater than horizontal. The shape is such that it merges with the inner periphery of the ring member.

However, as shown in FIG. 3, the entire radially inner portion of the abutment surfaces 14, 16 may be extended, and may extend horizontally from the ends 26, 28 toward positions A, B. It is also possible to use protrusions 22 'and 24' as shown in FIG. In each case, each of the ends 26, 28 of the protrusion is adjusted so that it is free from loose leaf binding and removal.

FIG. 5 shows protrusions 22, 24 according to the present invention.
Binding ring member 1 having a loose leaf 30 facing downward
0 and 12 are shown open from each other. As shown, the protruding portions 22 and 24 are respectively provided at the end portions 2 with the loose leaf 30 positioned downward, that is, with the binding ring positioned upward.
Create an upward slope with the peak at 6, 28. The degree of the upward inclination, that is, the ratio of the distance of the positions A and B from the respective abutting surfaces to the protruding dimensions of the ends 26 and 28 can maintain the loose leaf in the locked state even when the binding ring member is opened to some extent by vibration or the like. Adjusted to be able to Although the present invention has been described with reference to specific examples, it should be understood that many modifications may be made within the present invention.

[0009]

[Effect of the invention] Prevents the loose leaf from dropping when the binding ring is opened during transportation with the loose leaf down.
It is possible to do . Since the loose-leaf latching for fall prevention is made by binding ring member itself, binding ring member opened simply closing can be returned to the original binding Ji write <br/> viewed state only.

[Brief description of the drawings]

FIG. 1 is an enlarged partial side view of a binding ring member having protrusions at each free end according to the present invention.

FIG. 2 is a front view of the binding ring member of FIG. 1 as viewed from the direction AA.

FIG. 3 is a front view similar to FIG. 1 showing a projection of another embodiment.

FIG. 4 is a side view similar to FIG. 1 showing a projection of another embodiment.

FIG. 5 is a side view showing a state in which the binding ring is partially opened during transportation with the loose leaf down, and the loose leaf is locked by the protrusion of the binding ring member.

FIG. 6 is a perspective view of a conventional general binder binding tool.

FIG. 7 is a front view of the binder binding device shown in FIG. 6 when the binder is closed, as viewed from the direction of arrow B;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Binding ring member 12 Binding ring member 3 Movable substrate 5 Movable substrate 14 Abutment surface 16 Abutment surface 22 Projection part 24 Projection part 26 End part 28 End part 30 Loose leaf

Claims (2)

(57) [Scope of request for utility model registration] 1. A opposing multiple binding ring member, Ji binding loose-leaf or the like on the inside of the binding rings by making elastically cross-engaged At a respective abutment surface formed on its respective free end write A binder binding tool of the type described above, wherein a protrusion protruding radially inward of the binding ring member is formed in a peripheral portion of an abutting surface of each binding ring member. Binding device. 2. The projecting portion includes a plurality of opposed binding ring members.
On a plane which extends radially inward of the front Symbol binding ring member abutment surface formed on the free end has its top and edges along the inner perimeter of the said binding ring member, the binding when the ring member is disposed to the abutment surface upward, claims, characterized in that it is connected to the inner periphery of elevated binding ring member is extended in a horizontal direction or inclined state from the top 2. The binder binding tool according to 1.