JPS6035827Y2 - Clamp for cable - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a clamp for securing a cable having a strong repulsive force, such as a heater control cable.

When the flow control valve of a hot water type car heater is installed in the engine compartment separated from the vehicle compartment via the dash panel, for example, as shown in FIG. One end circle of the cable 2a is fixed to a clamp base 3 fixedly installed in the engine room via a clamp 4, and the inner 2b of the cable 2 and the flow control valve 5 are connected via a link mechanism 6, and then inserted into the passenger compartment. Inner 2 of protruding cable 2
The tip of b was connected to a control lever (not shown).

However, with a heater control cable that has a strong repulsive force, the tip of the inner 2b is connected to the link mechanism 6.
If you try to fix the outer 2a with the clamp 4 after connecting it to the cable, the repulsive force of the cable 2 will cause it to shift from the intended clamp position (the position shown by the solid line), as shown by the two-dot chain line in FIG. There was an inconvenience that the clamp 4 could not be attached unless the clamp 2 was pushed back and held in a predetermined position.

That is, as shown in FIG. 3, the conventional clamp 4 has both ends formed by bending a metal plate into a substantially W-shape that is substantially perpendicular to the clamp base 3, and then one end of the clamp 4 is folded back outward for engagement. In addition to forming the protrusion 4a, the engagement claw 4b was simply cut and raised on the inner surface of the other end of the clamp 4.

In such a lamp 4, as shown in FIG. 3, the engaging protrusion 4a formed on the outer surface of one end of the clamp 4 is brought into contact with the back surface of the peripheral edge of the engaging hole 3a provided in the clamp base 3, and An engaging claw 4b provided on the inner surface of the other end of the clamp 4 is engaged with the back surface of the end of the clamp base 3 to form an intermediate bent portion 4c.
The cable 2 is fixed to the surface of the clamp base 3 by fitting and fixing the cable 2 to the fitting part 4d which is sandwiched by the engaging protrusion 4a.

However, in such a conventional clamp 4, when the cable 2 is displaced from the predetermined position due to repulsive force as shown in FIG. 4, the intermediate bent portion 4c hits the cable 2, making it impossible to set the clamp 4. Because there is a risk of
It is necessary to hold the cable 2 in a predetermined position with one hand and engage the clamp 4 with the other hand, which has the drawback of poor cable clamping workability.

The present invention was developed in view of the above, and includes a guide piece that pushes back and guides cables that have deviated from their predetermined positions to the clamped position, even for cables that have a large repulsive force, such as heater control cables. By providing this, the clamping workability is improved.

The present invention will be explained in detail below based on an embodiment shown in FIGS. 5 to 9.

That is, in the present invention, as shown in FIG. 5, one end of the clamp 4, which is formed by bending a metal plate into a substantially W-shape with both ends substantially parallel and a bending portion 4c provided in the center, is folded outward to engage the clamp. In addition to forming a mating protrusion 4a, an engaging claw 4b that engages with the back surface of the end of the clamp base 3 is formed in a bulging manner on the inner surface of the other end of the clamp 4.

Furthermore, by providing a substantially U-shaped cut in the inclined part extending from the bent part 4c to the end where the engaging claw 4b is formed,
A tongue-like guide piece 4e is cut and formed so as to be inclined so as to move away from the retaining protrusion 4a and approach the engaging claw 4b toward the tip.

The fitting portion 4d formed between the bent portion 4c at the center and the engaging protrusion 4a is formed to such an extent that the outer 2a of the cable 2 can be fitted therein.

On the other hand, as shown in FIG. 6, the clamp base 3 is formed with an engagement hole 3a in which one end of the clamp 4 having an engagement protrusion 4a formed therein can be inserted into the clamp base 3 in a freely engaging and detachable manner and rotatably.
A punch hole 3c for allowing the guide piece 4e to escape is formed between the engagement hole 3a and the end portion 3b with which the engagement claw 4b engages.

To fasten the cable 2 using the clamp 4 configured as described above, first, both inch ends of the cable 4 are connected to the object.

At this time, one end of the clamp 4 is inserted in advance into the engagement hole 3a provided at the clamp position 13, and the engagement protrusion 4a formed on the outer surface of the insertion end is brought into contact with the back surface of the periphery of the engagement hole 3a. engaged.

At this time, as shown in FIG. 7, although the clamp 4 is deviated from the predetermined clamping position due to the repulsive force,
If the guide piece 4e provided on the clamp 4 overlaps the cable 2, as the clamp 4 is rotated to lie down, the guide piece 4e pushes and guides the cable 2 to a predetermined clamping position as shown in FIG. .

An engaging claw 4 formed on the inner surface of the rotating end of the clamp 4
When b is engaged with the surface of the end 3b of the clamp base 3, the cable 2 is pushed up to the fitting part 4d of the clamp 4 as shown in FIG. It will be fixed to the surface of 3.

At this time, since a punching hole 3c is formed in the clamp base 3, the guide piece 4e of the clamp 4 fits into this punching hole 3.
The cable 2 protrudes from the back side of the clamp base 3 through c.
is prevented from escaping from the fitting portion 4d.

Therefore, even if an external force is applied to the cable 2, the engaging claw 4b
Remove the guide piece 4e and rotate the clamp 4 upright to remove the guide piece 4e.
As long as the cable 2 is not pulled out from the extraction hole 3c, the cable 2 is securely fixed at a predetermined position.

In the embodiment, a pair of engaging claws 4b are provided on the inner surface of the pivoting end of the clamp 4 so as to bite into and engage with the end of the clamp base 3, but at least the back surface of the end of the clamp base 3 What is necessary is to provide an engaging claw 4b that engages with.

As explained above, according to the clamp of the present invention, even if the cable deviates from the predetermined clamp position, when the clamp is engaged and rotated, the guide piece cut and formed on the clamp will guide the cable to the predetermined position. Since the cable can be pushed up to the desired position, the cable can be fixed in place with only one hand without having to use both hands as in the conventional method, improving clamping work efficiency.

In addition, even after clamping, the cable is reliably held in the fitting portion by the guide piece, so there is no risk of the cable shifting even if an external force is applied, and the workability and reliability of clamp installation can be improved.

[Brief explanation of the drawing]

Figure 1 is a side view of an example of the use of a cable to which the present invention is applied;
Fig. 2 is an operational view of the same as above, Fig. 3 is a front view of the conventional example, Fig. 4 is a front view of the mounting process of the conventional example, Fig. 5 is a perspective view of an embodiment of the present invention, and Fig. 6 is a front view of the conventional example. A perspective view of the clamp base holding the clamp according to the invention, and FIGS. 7 to 9 are front views of the mounting process of the invention. 2...Cable, 3...Clamp base, 3a...Engagement hole, 3b...End part,
3c...Bullet hole, 4...Clamp, 4
a...Engagement protrusion, 4b...Engagement claw, 4
c...Bending part, 4d...Fitting part, 4e
・Track guide piece.

Claims (1)

[Scope of utility model registration request] This clamp is made by bending a metal plate into a substantially W-shape so that both ends are substantially perpendicular to the clamp base, and the engagement protrusion that engages with the back surface of the periphery of the engagement hole formed in the clamp base is attached to the outer surface of one end of the clamp. an engaging claw that engages with the clamp base is formed on the inner surface of the other end of the clamp, and is inclined so as to gradually move away from the engaging protrusion and approach the engaging claw,
A cable clamp characterized in that a tongue-shaped kite piece that protrudes into a hole formed in a clamp base is cut and raised at an intermediate bent part of the clamp.