JPS5813172Y2 - Soundproof toothed cable - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a toothed cable that does not emit noise.

Conventional toothed cables are constructed by providing spiral teeth in which a single metal wire is tightly wound at equal intervals on the outer peripheral surface of a core made of several twisted metal wires.

With this configuration, the gears, racks, or other toothed cables (hereinafter collectively referred to as meshing bodies) can mesh with each other to interlock with each other.

In addition, since the toothed cable is flexible, it is generally slidably inserted into a flexible conduit and is suitable for remotely controlling various driven devices.

Incidentally, since the conduit is usually a metal spiral tube, conventional toothed cables generate noise due to sliding contact between the helical teeth of the metal wire and the conduit of the metal spiral tube, or due to repeated contact due to vibration. It had the disadvantage of emitting

Further, even when the meshing body is made of metal, there is a drawback that noise is generated when the toothed cable and the meshing body mesh.

When the toothed cable is used, for example, for opening and closing the sliding roof of a car, raising and lowering the window glass, changing the visibility of the rearview mirror, etc., the noise causes discomfort to the occupants due to the resonance of the car body. .

The main purpose of the present invention is to solve the above-mentioned drawbacks of the conventional technology.
The purpose is to provide a soundproof toothed cable that does not emit noise.

Other purposes will become apparent from the description provided below.

An embodiment of the present invention will be described with reference to the drawings. 1 is a core made up of several metal wires 1a twisted together; 2 is a core made up of a core made up of a single metal wire tightly wound at equal intervals on the outer circumferential surface of the core 1; A toothed cable C is formed by winding a spiral tooth, and the toothed cable C is constituted by the coil t-1 and the spiral tooth.

In addition, an elastic tubular mesh 3 is provided to cover the outer peripheral surface of the toothed cable C.

The net 3 is made of a synthetic resin with excellent lubricity such as nylon or Teflon, or a similar durable material with appropriate elasticity.

Although not shown, both ends of the net 3 are fixed to the toothed cable C by gluing or fastening.

4 is a meshing body (indicated by a two-dot broken line) as described above.

To explain the function and effect of the present invention, the soundproof toothed cable of the present invention is such that the outer peripheral surface of the toothed cable C as described above is covered with an elastic mesh 3, so that the soundproof toothed cable is connected to a conduit of a metal spiral pipe ( (not shown), or even if the toothed toothed cable comes into repeated contact with the inner surface of the conduit due to vibration.
Noise is not generated by the net 3.

In addition, since the net 3 has elasticity, it does not interfere with the meshing with the teeth 4a of the meshing body 4 shown as a gear, and even when meshing with the meshing body, since the mesh 3 intervenes, no noise is generated.

Furthermore, in general, a lubricant such as grease is filled between the conduit and the toothed cable C to reduce the sliding resistance of the toothed cable, but in the soundproof toothed cable of the present invention, Since the lubricant can pass through the mesh, a large amount of lubricant, approximately the same amount as in the case of a conventional toothed couple, can be filled, so that no oil runs out over a long period of time.

In addition, since the net 3 can be made of a material with excellent lubricity as described above, even if oil runs out, the sliding resistance of the soundproof toothed cable against the conduit does not increase.

It goes without saying that the net 3 may be a non-braided net as shown, or a braided net (not shown).

[Brief explanation of drawings]

The drawing is a partially cutaway side view showing the embodiment of the present invention in mesh with a meshing body. 1: Core-1a: Metal wire, 2: Spiral teeth, 3: Tubular mesh, C: Toothed cable.

Claims (1)

[Scope of utility model registration request] A toothed cable has helical teeth made by winding one metal wire at equal intervals around the outer peripheral surface of a core made by twisting several metal wires; A soundproof toothed cable characterized by being made by tearing an elastic tubular mesh.