JPH09207963A - Band clip - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent cutting or wearing caused by frictions. SOLUTION: This band clip is provided with an elastic tongue 1 with a locking claw 7, a flexible band 3 fixed to the elastic tongue 1 and provided with a sawlike nonslip part 9 meshing with the claw 7, a guide 5 oppositely arranged with a distance at the claw side of the elastic tongue 1 to guide the flexible band 3 in the distance from the elastic tongue 1 and a locking manipulation part 19, 25 warping the elastic tongue 1 to narrow the mutually facing distance and keeping the distance. When the flexible band 3 is inserted between the elastic tongue 1 and the guide 5, the claw 7 of the elastic tongue 1 is forced to elastically contact the nonslip part 9 by the locking manipulation part 19, 25 to lock the band.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a band clip for bundling wires for wiring in electric equipment.

[0002]

2. Description of the Related Art As conventional band clips, there are those shown in FIGS. 8 and 9, for example. 8A is a plan view, FIG. 8B is a sectional view taken along the line bb of FIG. 8A, and FIG. First, as shown in FIG. 8, the conventional band clip includes an elastic tongue portion 1, a flexible band portion 3,
The guide portion 5 and the guide portion 5 are integrally formed of resin.
The elastic tongue portion 1 has a locking claw portion 7. The flexible band portion 3 has a saw-toothed non-slip portion 9 that meshes with the claw portion 7. The guide portion 5 is provided on an annular portion 11 surrounding the elastic tongue portion 1 and faces the claw portion 7 side of the elastic tongue portion 1 with a space therebetween.

When the flexible band portion 3 is inserted through the annular portion 11, a ring 15 for binding the electric wires 13 is formed as shown in FIG. 9, and in this state, the elastic tongue portion 1 cooperates with the guide portion 5. As a result, the claw portion 7 meshes with the anti-slip portion 9 and is locked by elastically contacting the flexible band portion 3. When the flexible band portion 3 is inserted into the annular portion 11, the ring 15 becomes smaller as the insertion of the flexible band portion 3 is deepened, so that the binding state can be strengthened, and the claw portion 7 and the non-slip portion 9 are ratchet type. The claw portion 7 meshes with the anti-slip portion 9 at the position where the insertion of the flexible band portion 3 is stopped by shifting to. Therefore, the electric wires 13 can be easily bundled.

[0004]

However, when the electric wire 13 is tightened by the ring 15 of the flexible band portion 3 as described above, the pawl portion 7 and the slip preventing portion 9 are displaced from each other in a ratchet manner. When the moving speed of the flexible band portion 3 with respect to the elastic tongue portion 1 is increased, the tip of the claw portion 7 may be scraped or melted due to friction, and the lock holding force may be reduced.

Therefore, an object of the present invention is to provide a band clip which can surely maintain the holding force regardless of the tightening speed of the flexible band portion.

[0006]

In order to solve the above-mentioned problems, the invention of claim 1 is characterized in that an elastic tongue portion having a locking claw portion and a member fixed to the elastic tongue portion and engaged with the claw portion. A flexible band portion having a matching saw-toothed non-slip portion and a claw portion side of the elastic tongue portion are opposed to each other with a gap, and the flexible band portion is guided between the elastic tongue portion. A guide portion; and a lock operation portion that bends the elastic tongue portion to narrow the facing interval and maintains the narrowed state, and the flexible band portion is provided between the elastic tongue portion and the guide portion. When it is inserted, the claw portion of the elastic tongue portion is elastically contacted with the anti-slip portion to be locked by the lock operation portion.

Therefore, by inserting the flexible band portion between the elastic tongue portion and the guide portion, a bundling ring can be formed. The binding force can be strengthened by pulling the flexible band portion to reduce the binding ring. Then, when the elastic tongue portion is bent by the lock operation portion at a predetermined position to narrow the facing interval to the guide portion, the elastic tongue portion elastically contacts the flexible band portion in cooperation with the guide portion and the claw portion does not slip. The binding state can be locked by meshing with the portion. This state can be maintained by the lock operation unit. Therefore, when the flexible band portion is inserted and pulled, the claw portion and the anti-slip portion can be made independent of each other, and friction between them can be prevented or suppressed.

A second aspect of the present invention is the band clip according to the first aspect, wherein the lock operation portion is a fixed portion provided in the vicinity of the elastic tongue portion and an unlocked position with respect to the fixed portion. To a lock position, the spacer being in contact with the elastic tongue portion at the lock position.

Therefore, in addition to the operation of the first aspect of the present invention, when the spacer is moved to the lock position with respect to the fixed portion, the elastic tongue piece is brought into contact with the elastic tongue piece and can be bent.

According to a third aspect of the present invention, in the band clip according to the second aspect, a concave portion is provided on one of the fixing portion and the spacer, and a convex portion is provided on the other side, and the concavo-convex portion is provided at a locking position of the spacer. It is characterized in that the parts are fitted together.

Therefore, when the spacer is at the lock position, the spacer can be positioned with respect to the fixed portion at the lock position by fitting the uneven portion.

The invention according to claim 4 is the band clip according to claim 2 or 3, characterized in that the spacer is provided with an inclined surface that abuts on the elastic tongue portion.

Therefore, in addition to the effect of the invention of claim 2 or 3, when the spacer is moved to the lock position, the inclined surface thereof abuts the elastic tongue portion, so that the elastic tongue portion can be flexed smoothly.

According to a fifth aspect of the invention, in the band clip according to any one of the second to fourth aspects, the unlocked position of the spacer is between the guide portion and the elastic tongue portion of the flexible band portion. It is characterized in that it protrudes from the elastic tongue portion on the insertion and withdrawal side.

Therefore, the spacer can be pressed by the flexible band portion drawn out between the guide portion and the elastic tongue portion and moved to the lock position.

[0016]

Embodiments of the present invention (embodiments) will be described below. 1 to 4 show an embodiment of the present invention, FIG. 1 (a) is a plan view, FIG. 1 (b) is a sectional view taken along the line bb of FIG. 1 (a), and FIG. 1 (c). Is cc in FIG. 1 (b)
FIG. 2 is an enlarged cross-sectional view of the II portion of FIG. 1B, FIG. 3 is an enlarged perspective view of the same, and FIG. 4 is an exploded enlarged perspective view of the same portion. Note that the same components as those in FIG. 8 are described with the same reference numerals, and redundant description will be omitted.

As shown in FIGS. 1 to 4, the band clip in this embodiment also includes an elastic tongue portion 1, a flexible band portion 3 and a guide portion 5, and the elastic tongue portion 1 is provided with a claw portion 7. The non-slip portion 9 is fixedly provided on the flexible band 3.

On the other hand, in one embodiment of the present invention, in particular, the elastic tongue portion 1 faces the guide portion 5 in the free state with a space equal to or larger than the thickness of the flexible band portion 3. The elastic tongue portion 1 is provided with an abutting convex portion 17 on the side opposite to the claw portion 7. A plate-shaped fixing portion 19 is provided near the elastic tongue portion 1. The fixing portion 19 projects from the base of the elastic tongue portion 1 into the annular portion 11, and is fixed to the guide portion 5 with respect to the elastic tongue portion 1.
It is provided at a position sandwiching and is substantially parallel to the guide portion 5. The fixed portion 19 is provided with a first concave portion 21 in the locked position and a second concave portion 23 in the unlocked position. A spacer 25 having a U-shaped cross section is supported by the fixed portion. The spacer 25 includes an abutment wall 27 and a positioning wall 29, and an insertion portion 31 formed between both walls 27, 29 is inserted into the fixed portion 19. The abutment wall 27 is located on the elastic tongue portion 1 side and abuts on the abutment projection 17 on the inclined surface 3.
3 are provided. The positioning wall 29 is provided with a convex portion 35. The convex portion 35 is adapted to fit in the first concave portion 21 or the second concave portion 23. 1 and 2
In this state, the spacer 25 is in the unlocked position, and the protrusion 3
5 is fitted in the second recess 23. In this state, the contact projection 17 of the elastic tongue 1 is in contact with the inclined surface 33 of the spacer 25 or is slightly apart therefrom, and the elastic tongue 1 does not bend. Further, the unlocked position of the spacer 25 is on the insertion / drawing side between the guide portion 5 and the elastic tongue portion 1 of the flexible band portion 3 and protrudes from the tip end side of the elastic tongue portion 1 at this unlocked position. The end surface 25a of the spacer 25 substantially coincides with the end surface 5a of the guide portion 5.

When the flexible band portion 3 is inserted between the guide portion 5 and the elastic tongue portion 1 and pulled out in the direction of arrow F1 in FIG. 5 along the guide portion 5, the electric wires 13 are bound together. A ring 15 is formed. When the binding is strengthened, the flexible band portion 3 may be further pulled out in the F1 direction. At this time, the claw 7
It can be pulled out without difficulty regardless of the non-slip portion 9, and even if the flexible band portion 3 is pulled out rapidly, the claw portion 7 and the like are not scraped or melted due to friction.

To lock the binding, the flexible band portion 3 is pulled out in the direction of arrow F2 as shown in FIG. 6, and the flexible band portion 3 is brought into contact with the end surface 25a of the spacer 25. When the abutting force of the flexible band portion 3 on the spacer 25 is increased,
The spacer 25 moves from the unlocked position to the locked position of FIGS. 6 and 7, the inclined surface 33 contacts the base side of the elastic tongue portion 1, and the elastic tongue portion 1 bends. As a result, the claw portion 7 meshes with the anti-slip portion 9 and locking is performed. At this position, the convex portion 35 of the spacer 25 is fitted into the first concave portion 21 to be positioned.

Therefore, the electric wires 15 can be easily bundled. Further, when the elastic tongue piece 1 is bent by the movement of the spacer 25, the inclined surface 33 contacts the elastic tongue piece 1, so that the elastic tongue piece 1 can be flexed smoothly. Further, since the spacer 25 can be moved only by changing the pulling direction of the flexible band portion 3, the operator does not need to change the flexible band portion 3 and can lock it very easily. When the binding of the wires 13 is released, the elastic tongue portion 1 is elastically returned by moving the spacer 25 from the locked position to the unlocked position. Due to this elastic return, the distance between the guide portion 5 and the claw portion 7 becomes equal to or larger than the thickness of the flexible band portion 3, the flexible band portion 3 can be easily pulled back, and the binding can be easily released.

[0022]

As is apparent from the above, according to the invention of claim 1, unless the claw portion of the elastic tongue portion is elastically contacted with the anti-slip portion by the lock operation portion, the claw portion and the anti-slip portion are related to each other. It is possible to perform the pulling-out operation of the flexible band portion without the need to prevent abrasion and melting of the claw portion due to friction, and to reliably maintain the lock holding force.

According to the invention of claim 2, in addition to the effect of the invention of claim 1, the elastic tongue portion can be bent by the movement of the spacer to the lock position, and locking can be performed by a simple structure. You can

According to the third aspect of the invention, in addition to the effect of the second aspect of the invention, the locking position of the spacer can be achieved by fitting the concave and convex portions, and the spacer can be positioned by a simple structure.

According to the invention of claim 4, in addition to the effect of the invention of claim 2 or 3, the elastic tongue portion can be flexibly bent by the inclined surface of the spacer, and smooth locking can be performed.

According to the invention of claim 5, in addition to the effect of any one of claims 2 to 4, the spacer can be easily moved by changing the inserting / pulling direction of the flexible band portion, and the workability is improved. Can be further improved.

[Brief description of drawings]

FIG. 1 is a plan view, (b) is a sectional view taken along the line bb of (a), and (c) is a sectional view taken along the line cc of (b) according to the embodiment of the present invention. It is a figure.

FIG. 2 is an enlarged cross-sectional view of a II part in FIG. 1 (b).

FIG. 3 is an enlarged perspective view of a portion II of FIG. 1 (b).

FIG. 4 is a partially exploded enlarged perspective view of a portion II of FIG. 1 (b).

FIG. 5 is an operation explanatory diagram of a state where the spacer is in the unlocked position according to the embodiment.

FIG. 6 is an operation explanatory diagram of a state in which the spacer is in the lock position according to the embodiment.

FIG. 7 is an enlarged cross-sectional view taken along the line VII of FIG.

8A and 8B are plan views and FIG. 8B is a cross-sectional view taken along the line bb of FIG.

FIG. 9 is a cross-sectional view showing a bound state according to a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Elastic tongue portion 3 Flexible band portion 5 Guide portion 7 Claw portion 9 Non-slip portion 19 Fixed portion (lock operation portion) 21 First concave portion 23 Second concave portion 25 Spacer (lock operation portion) 33 Slope surface 35 Convex portion

Claims (5)

[Claims] 1. An elastic tongue portion having a locking claw portion, a flexible band portion fixed to the elastic tongue portion and having a saw-toothed non-slip portion that meshes with the claw portion, and the elastic tongue. A guide portion that faces the claw portion side of the piece portion with a gap and guides the flexible band portion between the elastic tongue piece portion; and the elastic tongue piece portion is bent to narrow the facing gap. And a lock operating portion that maintains a narrowed state, and when the flexible band portion is inserted between the elastic tongue portion and the guide portion, the lock operating portion causes the claw portion of the elastic tongue portion. A band clip, wherein the band clip is elastically brought into contact with the non-slip portion to be locked. 2. The band clip according to claim 1, wherein the lock operating portion moves from an unlocked position to a locked position with respect to a fixed portion provided near the elastic tongue portion. A band clip comprising a spacer that is supported so as to abut against the elastic tongue portion in the locked position. 3. The band clip according to claim 2, wherein a concave portion is provided on one of the fixing portion and the spacer, and a convex portion is provided on the other, and the concave-convex portion is fitted at a locking position of the spacer. A band clip characterized by that. 4. The band clip according to claim 2 or 3, wherein the spacer is provided with an inclined surface that abuts the elastic tongue portion. 5. The band clip according to any one of claims 2 to 4, wherein the spacer is in an unlocked position on a side of insertion and withdrawal between the guide portion and the elastic tongue portion of the flexible band portion. A band clip, characterized in that it projects more than the elastic tongue portion.