JPS6084486A - Electric wire bundle clamp - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a wire bundle clamp for fixing a wire bundle to a chassis, panel board, or the like.

Examples of conventional wire bundle clamps include those shown in Figures 1 (a) to (
The method shown in c) has been proposed. d5 to these
Each locking projection 5.6.10 is in each case rigidly integrated into a C-valvular curved band 3.4.9. In such conventional clamps, in order to unlock the locking protrusion 5.6.10, the finger hook 51.52.5 that engages with this
In order to create a gap near the tip 7.8.13 of 3, the end of the finger hook had to be pushed down. In particular, when the wire bundle is at the maximum allowable value for the clamp, the locking protrusion 5.6.10 will continue to be pushed toward the finger hook 51, 52, 53 during clamping, and the finger hook will become too large. It will not come off unless you press down to open the gap. This causes permanent deformation or excessive stress deformation of the finger grip portion 51, 52, 53, and an upward force is applied to the wire bundle during clamping, and an upward horn is also applied to the C-shaped valve curved band 3.4.9. The problem was that it could easily come off. In order to eliminate these drawbacks, the rigidity of the C-shaped valve curved band should be further increased.
Similarly, if the rigidity of the finger hooks 51, 52, and 53 were further increased, it would become difficult to remove, but due to its rigidity, it would be difficult to push the C-shaped push curved band 3.4.9 into the finger hooks. 51, 52, and 53 become difficult to bend. Therefore, with J3 in such a conventional clamp,
-B: If the rigidity is increased to i = which makes it difficult to remove the clamped wire bundle, there is a drawback that it becomes difficult to unlock. If the rigidity is weakened in order to make it easier to unlock, the bundle of wires will easily come off, which has the disadvantage that clamp reliability and ease of unlocking are not compatible. In addition, the open end of the C-shaped pushable curved band must be pushed into the narrow gap near the tip of the finger hook 51.52.
．． The present invention was made against this background, and the object of the present invention is to easily clamp and unclamp the 31. Moreover, it is an object of the present invention to provide a wire bundle clamp that securely clamps the wire bundle once it has been clamped and rarely comes off.

The gist of the present invention, which has been made to achieve such an object, is to provide one end of an elastic curved band on the board integrally with the substrate, and connect the other end of the elastic curved band to an open end. In the electric wire bundle clamp, the open end of the elastic curved band is bent outward so that it can be elastically deformed, and the locking part of the open end of the elastic curved band is provided on the board of the above-mentioned "A" board, and A stepped locking protrusion is formed, and a portion of the bent end is used as a clamp operation piece, while at least two protrusions are formed on the bent base plate of the open end. The wire bundle clamp is provided with locking pieces arranged at intervals such that the wires can be inserted, and furthermore, a locking piece that can be latched to the locking protrusion is provided on the inner surface of the outer protrusion.

Embodiments of the present invention will be described in detail below with reference to the drawings. 2, 3, and 4 show a first embodiment of the present invention, and 14 is a mounting board made of elastic synthetic resin (for example, nylon). A curved band 16 is provided by integral molding. Curved band 16
, an elastic protrusion 18 is formed in the curved band 16 itself, locally curved from the inside to the outside, in the width direction of the curved band 16, that is, in the wire bundle insertion direction, and at both ends thereof. are open on both sides of the curved band 16. Curved by this? +) l 6 has a maximum gripping diameter that can be slightly expanded and contracted depending on ω of the wire bundle, and can also alleviate stress concentration. Note that the bullets 111 and the protrusions 18 are formed at three locations on the curved band 16 at approximately q-minute positions. The number can be increased or decreased as appropriate.

The open end side of the curved band 16 is bent outward in a V-shape and elastically deformable, and a stepped locking protrusion 22 is formed at the bent portion 20 as shown in FIG. Further, the tip of the curved band 16 is bent outward to form a clamp operation piece 24. In addition, the clamp operation piece 24
A finger rest part 26 is provided protrudingly on the curved band 16 near the upper part, and the finger rest part 26 and the clamp operation piece 24 are grasped with the fingers, the tip of the clamp operation piece 24 is lifted up, and the lJi bending part is held. 2
The position of the locking protrusion 22 can be changed inward of the curved band 16 by elastically deforming the locking protrusion 22.

On the other hand, two protrusions 28 and 28r on which the locking protrusion 22 can be latched are formed on the take-out q board 14. A locking piece 3 is provided inside the side wall of the protrusion 28 facing the locking protrusion 22.
0 is formed, and the locking protrusion 22 is engaged. Note that both sides of the -1 board 14 are largely chamfered to prevent damage to the wires even if the wires are pulled during insertion.

Further, an adhesive tape 34 is laminated on the lower surface of the take-off board 14, and the wire clamp can be attached to the sheet 11-shi etc. using this adhesive tape 34.

In addition, instead of the adhesive tape, other fixing mechanisms such as a pair of elastic restraining pieces that can be expanded to the left and right at the tip of the support can be installed by inserting them into the fixing holes of the chassis, etc. You may also use something like this.

In the wire bundle clamp of the first embodiment of the present invention configured as described above, by lifting the clamp operation piece 24 diagonally upward, each locking protrusion 22 can be connected to the locking protrusion IJ-, )"+' 30. As the binding is removed, the elasticity of the curved band 16 causes the bent portion 20 (17) to move upward, making it possible to attach the wire bundle.After attachment, the bent portion 20 (111) is then bent into a ridge 28 and into a protruding shape. By pushing into the gap between 28r, each of the locking protrusions 22 and 30 engage with each other and are latched and clamped. This prevents the wire bundle h (wire bundle Even if the gripping diameter of the clamp exceeds the gripping diameter, the curved band 16 stretches due to the elastic deformation of the elastic protrusion 18, allowing for good clamping, and also prevents sudden bending stress from being applied to the curved band 16. Even if I join,
The elastic protrusions 1B relieve stress concentration and prevent damage. To release the clamp 1', press the clamp operating piece 2.
4 diagonally upward and disengage the respective locking protrusions 22 and 30, so one finger rb operation is possible.
Therefore, it is easy to use even in narrow spaces.

Here, the effects of this embodiment will be explained in more detail with reference to the schematic diagram of FIG. 5 while comparing with a conventional wire bundle clamp.

In Fig. 5, (a >, (C), (e), 9) indicate conventional wire bundle clamps, and (b), (d), (f)
, (1)) shows the wire bundle clamp of this embodiment.

(a), <1)) indicates an unclamped state,
(C), (d) show the clamped state, (e)
, (f) shows the state of Ashi clamping from the clamped state, and <g>, (11) shows the state where upward forces P1 and P2 are applied to the C-shaped curved band 4.16 in the clamped state. It shows. When clamping here, from <8) to (C) and from (b) to (d), both the conventional clamp and the clamp of this embodiment are between the two protrusions 55 551' or 28M28r. Just insert the open end into it. In order to unclamp after clamping one end, in the conventional clamp, as shown in (e), force is applied to the finger hook 52 in the P3 direction and the C-shaped valve curvature is applied. Apply force P4 near the Itnyi end of 1-shi4, and then pull out the open end from the protrusion. Zunawara 1]
3. It is necessary to apply force in two directions, the P4 direction. On the other hand, in the clamp of this embodiment, when one P5 horn is applied diagonally to the tip of the 1111 distal end, that is, the clamp operation piece 24, it becomes the state shown in (f), and if you continue to apply a force roughly in the P5 direction, it will open. The end comes off between the ridges 28 and 281. In other words, it is possible to unclamp only by applying force in one direction. Also, in the clamped state, especially when a bundle of wires with the maximum allowable value is clamped in the space between the C-shaped curved band 16.4 and the recessed board 14,
Pl of (0), 1 of (h)] Forces in two directions are likely to be applied. Especially after clamping, when the wire bundle is touched when attaching other parts (j1 and removing it), the horns in the direction of Pi, P27'J are often added to the C-shaped curved band 16.4.In such cases, conventional clamps The angle θ1 formed at J′3 on the locking protrusion 6 is bent at an obtuse angle as shown in (l), and the relative angle 02 between the locking portion 8 and the C-shaped bullet f [curved band 4 is also obtuse. It easily comes off due to external force.If a force of Pl is applied to the curved state at an obtuse angle, the open end of the C-shaped curved band 4 will come off from between the protrusions 55 and 55r.That is, On the other hand, in this embodiment, when a force in the P2 direction is applied, the state shown in (h) occurs, and the bent portion 20 of the C-shaped valve curved band is blocked by the locking piece 30, so that it is completely unclamped. It will not come off from between the protrusions 28Jlt and 28r.In other words, once it is clamped, it will not be unclamped no matter how much force is applied in the P2 direction.
In other words, in the clamp of this embodiment, unclamping is impossible unless a force is applied diagonally upward in the P5 direction like <r>. As described above, once the clamp of this embodiment is clamped, the wire bundle is reliably clamped and will not come off no matter how much force is applied to the wire bundle in the P2 direction. In order to prevent this coming off, the following measures have been considered in conventional clamps. That is,
The purpose is to increase the rigidity of the C-shaped bony curved band 4 so that it does not easily deform when a force Pl is applied. Furthermore, it is also necessary to increase the rigidity of the finger H-to-portion 52. However, increasing the rigidity in this way is effective in preventing it from coming off.1) If it is necessary to clamp the foot for some reason, please use P3 and 1 to attach the J hub to (Q) ] It is necessary to artificially add the horns of 4. If the rigidity is increased, P3, ■)
4) It is necessary to apply a large amount of force, and the disadvantage is that it is difficult to remove. However, the conventional J3 clamp has the drawback that once the wire bundle is clamped, it is hung so that it does not come off, which makes it difficult to remove the wire bundle if it is to be removed manually for some reason. In contrast, in this embodiment, no matter what the rigidity of the C-shaped bony curved band is, the wire bundle that is further clamped will not come off unless a force in the P5 direction is applied. Therefore, even if the rigidity of the C-shaped valve bamboo curved band 16 is weak, it is difficult to come off. In other words, the present invention achieves both ease of operation and resistance to detachment without any contradiction. In addition, in the conventional clamp J5, the locking protrusion 6 has a protrusion 55 and a protrusion 55.
5r, the locking protrusion 6 catches on the locking portion 8, and is thereby locked. Therefore, the protrusion 55
The space between the sentence and 55r cannot be unnecessarily wide, and C
The locking protrusion 6 must be inserted correctly into the tip of the bamboo curved band 4. This insertion action is performed by moving the locking protrusion 6 into the gap 58 in three directions, and then pressing it down (C
) must be inserted downwards. This work is surprisingly troublesome since the gap 58 is narrow. However,
In this embodiment, the gap 29 between the locking piece 30 and the right protrusion 28r is wider than the gap 58 that fits into the conventional clamp, and the tip of the C-shaped bony curved band 16 (J The nearby bent portion 20 can be easily inserted and covered.This insertion work can be done simply by mechanically pushing it in, without having to aim for the dot/υ.However, with conventional clamps, In this case, since the gap 58 is narrow, it is necessary to guide the locking protrusion 6 with a determined aim, and this operation is troublesome.

6, 7, and 8 show a second embodiment of the present invention. In this embodiment, the C-shaped bony curved band 41 is provided with an elastic protrusion 18 as in the first embodiment. Not installed.Mounting board 42
The protrusion 43 provided on the right side protrusion 43 consists of a left protrusion 43 and a right protrusion 43r, as in the first embodiment.
For 3r, reinforce the base 41b of the C-shaped valve bamboo curved band with a G-pu.
47 has been established. Also, two protrusions 43 and 4
As shown in FIG. 8, at both ends of the electric wire bundle 1 of 3r in the application direction, a lateral slip prevention wall 451 is provided at the upper portion of one side, and a lateral slip prevention wall 45d is provided at the lower portion of the other side.

The electric wire end clamp of this embodiment having such a configuration is different from the first embodiment in that the lateral slip prevention mechanism 4 is different from that of the first embodiment. The bent part 44, which is the open end of the band, is bent (-'1?l''), in other words, it can be bent in the direction in which the wires are not inserted, and can securely clamp the wire bundle.
Due to the action of 7, the protrusion 43r is not easily deformed, and when the wire bundle has a curved surface, the wire bundle can fit better into the clamp.

)] Figures 9 and 10 show a third embodiment of the present invention, and this embodiment shows an example in which a clamp operating rod 61 is provided at the tip of the G-shaped valve curved band 03. This clamp operating rod 61 is C
It is formed to extend in the width direction of the osteoid curved band 63 and to be larger than the width of the curved band 63.

By operating the tip of the clamp operating rod 61 with a finger, the clamp of this embodiment can be easily clamped and unclamped.

FIG. 11 shows a fourth embodiment of the present invention. In this embodiment, a clamp operating rod 73 is provided at the open end tip of the C-shaped bullet f (1 curved band 71) as in the third embodiment. An example is shown in which a handle 75 is provided on one side.The clamp of this embodiment can be operated even more easily by pressing or holding the handle 75 with your fingers.

FIG. 12 shows a fifth embodiment of the present invention, in which the clamp of this embodiment is used to hold down a flat cable, and the elastic curved band ε31 has a C shape as in the previous embodiment.
Because it has a flat shape rather than a flat shape, it is suitable for covering flat cables with clamps.

As described in detail above, in order to attach the open end of the elastic curved band to the mounting board, the electric wire bundle clamp of the present invention uses the unique 4M structure as described above. It is characterized by Therefore, after partially clamping the wire bundle, it is held securely and will not come off even if a force is applied to the elastic curved band in the direction of the ground. Moreover, since the clamp operation is easy and the clamp can be easily clamped, it has the advantage of being easy to use in a narrow electronic device.

[Brief explanation of drawings]

Figures 1 (A), (B), and (C) are perspective views showing conventional examples of wire bundle clamps, Figure 2 is a perspective view showing a first embodiment of the present invention, and Figure 3 is a perspective view of the same embodiment. FIG. 4 is a partial enlarged view of the same embodiment, and FIG. 5 is a schematic diagram showing the effects of the conventional clamp and the clamp of the first embodiment of the present invention. b) shows the unclamped state, and (C
> and <d) indicate the clamped state, and (e) and (''>
indicates the state when unclamping 0) (i))
6 shows a state in which a force in one direction is applied to the elastic curved band when it is clamped, FIG. 6 shows a sectional view of J showing the second practical example of the present invention, and FIG. 8 shows a sectional view taken along the X-X line in FIG. 6, and FIG. FIG. 10 shows a left side view of the same embodiment, and the first
FIG. 1 shows a perspective view of the fourth embodiment of the present invention, and FIG. 12 is a partially sectional front view showing the fifth example of the present invention. 1.2.14.42... Removal base plate 3.1.9.16.41.63.71... C-shaped bone curved band 5.6.10.22... Locking protrusion 18 ... Elastic protrusion 24 ... Clamp operation piece 61.73 - Clamp operation rod 28.55 ... Protrusion 81 ... Elastic curved band 45 ... Lateral slip prevention wall agent Patent attorney Tsutomu Sadatachi 1 other person Fig. 1 et al. Fig. 2 Fig. 3 J4 2014 Fig. 4 Fig. 5 (b) 4 Fig. 6

Claims (1)

[Claims] One end of an elastic curved band is provided integrally with the substrate, the other end of the elastic curved band is provided as an open end, and the open end of the elastic curved band is provided on the fixed substrate. In the electric wire bundle clamp provided with a latching portion, the open end is bent so as to be elastically deformable outward, and a step-shaped locking protrusion is formed near the bent portion 111, and further bent. One part of the open end is used as a clamp operation piece, and on the other hand, at least two projecting parts are provided on the mounting board at intervals such that the bent part of the open end can be inserted.
Moreover, the wire bundle clamp is characterized in that a locking part (11) is provided on the inner surface of the outer projecting part to be held by the locking protrusion.