JPH0311498Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a clamp used to arrange and hold a bundle of electric wires such as a wire harness for an automobile at a key point in a vehicle body or the like.

"Prior Art" Conventional clamps generally have a structure that includes a band-shaped body that is wrapped around the outer periphery of a wire bundle, and a locking part with an elastic check piece that protrudes from the body. The wire harness is fitted into a mounting hole in a vehicle body, etc., and a wire harness is arranged and held therein. The above clamps can be used, for example, in a limited space on a car body.
Since the ability to accurately arrange and hold wire bundles of various diameters is required, it is necessary to stably install the wire bundle at an accurate position on its outer periphery and in an accurate mounting orientation depending on the diameter of the wire bundle. be.

Therefore, even if the diameter of the wire bundle changes, the diameter of the body can be adjusted accordingly, and a clamp that can be attached to the outer periphery of the wire bundle has been developed. There is a structure in which a body made of a strip is wound around the outer periphery of a bundle of wires, and the middle of the annular strip is locked into a charging hole in the base of the strip.

``Problems to be solved by the invention'' However, the conventional clamp structure described above requires manual labor to wrap the long strip around the bundle of wires, and to pass the tip of the strip through the insertion hole and lock it in place. Therefore, it is difficult to attach the wire to the bundle of electric wires, and furthermore, after attachment, it is necessary to cut off the excess portion of the body that protrudes through the insertion hole, which makes the attachment work complicated.

Then, the installed clamp simply wraps the wire bundle body around the outer periphery of the wire bundle, and adjusts the diameter of the body using the multi-stage fitting recesses provided in the wire bundle. There is a problem that the diameters may not match exactly, and the clamp may be displaced or rotated, impairing the clamping function.

The object of the present invention is to provide a clamp with a new structure that solves the above-mentioned conventional problems.

``Means for Solving the Problems'' The present invention achieves the above-mentioned objects, and the present invention is a clamp having a band-shaped body for wrapping around the outer periphery of a wire bundle, and a locking part with an elastic check piece protruding from the body. In the above, the body part is made up of a zigzag spring-shaped wrapping piece that extends from the base of the locking part and is made up of a pair of opposing band-like plates with an S-shaped zigzag convex part facing the wire bundle, At the tip of the wrapped piece,
From "a structure provided with a locking part consisting of a male part on one side consisting of a serrated check blade and a female part on the other side consisting of a serrated check blade that engages with the male part"It's summery.

"Function" In the clamp of the present invention having the above configuration, the band-shaped body for accommodating and wrapping the wire bundle is composed of a pair of zigzag spring winding pieces, and the ends of the winding pieces are A locking part consisting of female and male serrated check blades is provided, so when the serrated check blades are engaged and locked at any position according to the thickness of the wire bundle stored, an S-shape is formed. The convex part of the zigzag spring is crimped onto the bundle of wires housed in it, receives an external force in the direction of compressing and expanding the zigzag-shaped unevenness, and elastically bends in the direction of increasing the spring constant, so the bundle of wires such as a wire harness It is tightly and elastically crimped to ensure that it is accurately fixed and held.

In other words, even if the wrapped bundle of wires shifts or rotates due to an external force and loses its posture, the band-like wrapping piece in the shape of a zigzag spring will maintain its spring strength in proportion to the amount of displacement of the bundle of wires. As the constant increases, the winding force increases proportionally, so the bundle of wires does not easily lose its position.Furthermore, since the winding piece has a zigzag spring shape, it does not cause a large impact on the bundle of wires. Even if an external force occurs and the winding force shows an abnormally high value, there is no excessive local stress or moment on the winding piece, and the winding piece is resistant to damage due to the uniform stress of the zigzag spring strip. There is very little risk of this occurring, and the function of securing and holding the wire bundle is stable.

"Example" A detailed explanation will be given below based on the drawings of the embodiment.

In FIGS. 1 and 2 showing one embodiment of the invention, the clamp of the present invention has a body part 1 that is wrapped around the outer periphery of a wire bundle.
and a locking part 2 projecting outward from the body part 1 in the form of a column. The winding pieces 5A and 5B have a continuous corrugated shape on a band material, and have a zigzag spring shape with respect to the longitudinal section of the clamp. And the wrapping piece 5A,
A locking portion 6 is provided at the tip of 5B, and the locking portion 2
A pair of elastic check pieces 3A and 3B are formed on the holder.

That is, when the wrapped pieces 5A, 5B are subjected to an external force of elongation or compression, the waveforms expand and contract freely, and the wrapped pieces 5A, 5B are connected by the lock part 6 to form a ring body. The ring body is configured as a spring body that elastically expands and contracts the diameter of the ring body when the ring body receives an external force for expansion and contraction in the radial direction.

The lock part 6 is formed at the tip of the winding piece 5A, and the male part 7 has a saw blade-shaped check blade 9 provided externally, and the lock part 6 is formed at the tip of the winding piece 5B and has a saw blade-shaped check blade 9. When the male part 7 and the female part 8 are fitted together, the check blades 9 at arbitrary positions are engaged, and the wrapped pieces 5A, 5B are easily separated. It is designed to be connected and locked without any problem.

The male part 7 is divided into a right half 7' and a left half 7'', and a check blade 9 is provided on the outside of the right half 7' and on the inside of the left half 7''. , and the female part 8
is divided into a right half 8' and a left half 8'', and is provided with a check blade 9 that engages with the check blade 9 of the corresponding right half 7' and left half 7'' of the male part 7, respectively. be. and,
At the bases of the male part 7 and the female part 8, an operating piece 10 for operating the attachment and detachment of the lock part 6 is provided protrudingly.

Further, the locking portion 2 having the elastic check pieces 3A and 3B is the same as that of the conventional structure, and the locking portion 2 has the elastic check pieces 3A and 3B.
A pressure contact piece 4 is provided at the base of the clamp to ensure stable installation of the clamp by pressing against the vehicle body in the vicinity of the mounting hole when the locking portion 2 is fitted into the mounting hole of the vehicle body or the like.

The clamp of the present invention having the above structure accommodates the wire bundle 12 between the winding pieces 5A and 5B as shown in FIG. It is attached to the outer periphery of 12. Then, the locking part 2 is inserted into the mounting hole 14 drilled at a key point in the vehicle body 13, etc.
, and the wire bundle 12 is arranged and held on the vehicle body 13 or the like.

The clamp of the above embodiment has the above-mentioned effect.

Next, FIG. 3 shows another embodiment of the present invention, in which a clamp having the same body section 1 as the embodiment described above has a locking protrusion 11 on the inside of the base of the winding pieces 5A, 5B. There is. According to this example:
The locking protrusion 11 bites into the wire bundle 12 due to the elastic winding force of the winding pieces 5A and 5B, so that the wire bundle 12
It has a unique effect that further improves the stability of the installation.

"Effects of the Invention" As described above, in the clamp of the present invention, the winding pieces 5A and 5B of the band-shaped zigzag spring elastically wrap the wire bundle 12, and even when the wire bundle 12 is subjected to harmful strong external force. , increases the winding force to better stabilize the clamping posture of the wire bundle 12, and reduces local stress. Since no local moment is generated, there is no risk of damage, and the wire clamping function is effectively stabilized.

[Brief explanation of the drawing]

Figure 1: shows a clamp according to an embodiment of the present invention, A
is its front view, B is its top view, C is its side view, Figure 2: Front view showing the usage state of the embodiment in Figure 1, Figure 3: Front view showing the clamp of another embodiment of the present invention. figure. Main codes: 1: Trunk, 2: Locking part, 3A, 3
B: Elastic check piece, 5A, 5B: Winding piece, 6: Lock part, 7: Male part, 8: Female part, 9: Check blade, 1
0: Operation piece, 11: Locking protrusion, 12: Wire bundle.

Claims (1)

[Scope of utility model registration request] A band-shaped body that wraps around the outer periphery of the wire bundle,
In the clamp having a locking portion with an elastic check piece protruding from the body, the body extends from the base of the locking portion and has an S-shaped zigzag convex portion facing the wire bundle. It consists of a zigzag spring-shaped winding piece made up of a pair of opposing strip plates, and the tip of the winding piece has a male part on one side consisting of a serrated check blade, and a male part that engages with the male part. A clamp characterized by a structure in which a locking part is provided with a "female part on the other side consisting of a serrated check blade".