JPH0722537Y2 - Dust cover for terminal device of control cable - Google Patents

Description

[Detailed Description of the Invention] Industrial Application The present invention relates to a dust cover used for a terminal device of a control cable in which an inner cable is slidably inserted in an outer tube so that the dust cover does not come off easily after installation. The present invention relates to a dust cover having an improved shape.

Problems to be Solved by the Related Art and Invention The structure of the mounting portion of the engine-side terminal of the control cable for transmitting the pedaling pressure applied to the accelerator pedal of the vehicle to the engine carburetor side is shown in FIG. 3, for example. As described above, the outer cable 2 of the control cable 1 in which the inner cable 3 is slidably inserted into the outer tube 2
A cylindrical fixing tool 5 having an external thread 6 formed on the outer periphery is fixed to the end of the cylindrical fixing tool 5, and the cylindrical fixing tool 5 is inserted into a mounting hole 8 formed in a mounting plate 7 projecting from the fixing member to form a cylindrical fixing tool. The end of the inner cable 3 protruding from 5 is connected to a throttle valve (not shown) of a carburetor, and the tubular fixture 5 is fixed by pinching the mounting plate 7 with a pair of nuts 9 screwed onto the outer periphery thereof, A cap-shaped rubber dust cover a having a central hole b for tightly fitting the inner cable 3 formed at the tip of the tubular fixture 5 is formed inward on the inner circumference of the open end. By fitting and attaching the flange c of the flange c to the locking groove 10 provided around the outer periphery of the tubular fixing tool 5, dust enters between the inner circumference of the tubular fixing tool 5 and the outer circumference of the inner cable 3. It is designed to prevent you from doing so.

By the way, the tubular mounting member 5 is mounted by appropriately adjusting the axial position so that the inner cable 3 protruding from the tip thereof does not become loose. It is necessary to shift to the left side nut 9
Is moved to reach the engaging groove 10 as shown by the chain line in the figure, the end face of the dust cover a is pushed by the nut 9 to open the inward-facing flange portion c to the outside and to engage the engaging groove 10. If there is an outward protrusion d as shown in the drawing on the outer circumference of the tip of the portion where the dust cover a is fitted into the locking groove 10, the protrusion d will be generated during the work.
There is a risk that your hands or tools may get caught and come off.

As means for solving the above-mentioned problems, as a means for solving the above-mentioned problems, the dust cover for a terminal device of the control cable of the present invention has an outer peripheral surface provided with an inward facing flange and a tip having a nut. The taper is tapered so as to enter the inner surface of the.

The operation and effect of the present invention With the above configuration, when the nut is moved until it comes into the engaging groove as the position of the tubular fixture is adjusted, the outer peripheral surface of the end corresponding to the nut of the dust cover is tapered. Since it is tapered, the tip of the dust cover does not enter the inner surface of the nut and the pressing force does not act on the dust cover, and when the nut further moves to the dust cover side, the edge of the inner surface of the nut will be Since the taper surface of the dust cover is pushed, the inward flange is pressed against the bottom surface of the locking groove by the component force directed toward the center and cannot be removed.
Unlike the conventional dust cover, there is no outward protrusion on the outer circumference, so there is no risk of getting a hand or tool caught during work, and there is an effect that it can be reliably prevented from coming off the locking groove. .

Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

The dust cover 11 of the present embodiment is made of rubber and has a cap shape in which a center hole 12 for tightly fitting the inner cable 3 is formed, and a cylindrical fixing tool is provided on the inner periphery of the open end thereof. 5, an inward flange 13 that is tightly fitted to the locking groove 10 provided around the outer periphery of the tip end portion of 5 is formed, and the flange 13 is fitted and fitted in the locking groove 10 in the same manner as in the conventional case. In particular, the dust cover 11 has a tapered tapered surface 15 such that the outer peripheral surface of the portion where the inward flange 13 is formed has a diameter substantially equal to the diameter of the root of the male screw 6 on the outer periphery of the tubular fixture 5. It is said. The nut 9 on the left side close to the locking groove 10 has a chamfered end on the side corresponding to the dust cover 11 on the inner surface of which the internal thread is cut.

This embodiment has such a structure, and when adjusting the position of the tubular fixture 5 to the right in FIG. 1, the nut 9 on the left side is placed in the locking groove 10 as shown in FIG. When moving to the front, the outer peripheral surface of the end corresponding to the nut 9 of the dust cover 11 forms a tapered taper surface 15, so that the tip only enters the inside of the chamfered portion 17 of the inner surface of the nut 9 to generate dust. The pressing force accompanying the movement of the nut 9 does not act on the cover 11, and when the nut 9 further moves toward the dust cover 11, the chamfered portion 17 of the nut 9 pushes the taper surface 15 of the dust cover 11. , The inward flange 13 is pressed against the bottom surface of the locking groove 10 by receiving a component force directed toward the center, and there is no risk that the dust cover 11 will come off from the locking groove 10. Since there is no protruding direction, hook your hand or tool during work There is no danger of removing it.

[Brief description of drawings]

FIG. 1 is a sectional view of a terminal structure of a control cable to which an embodiment of the present invention is applied, FIG. 2 is a partially enlarged sectional view thereof, and FIG. 3 is a terminal structure of a control cable to which a conventional dust cover is applied. FIG. 1: Control cable, 2: Outer tube, 3: Inner cable, 5: Cylindrical fixture, 6: Male screw, 7: Mounting plate, 8: Mounting hole, 9: Nut, 10: Locking groove, 11: Dust cover, 12: Center hole, 13: Inward flange, 15: Tapered surface

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Naoki Nakata 18-3 Maeda, Hanazono-cho, Toyota City, Aichi Prefecture, Maedera Temple No. 201 (56) References 813 (JP, U)

Claims (1)

[Scope of utility model registration request] 1. A tubular fixing tool having a male screw formed on the outer periphery is fixed to a terminal of the outer cable of a control cable in which an inner cable is slidably inserted in the outer tube, and the tubular fixing tool is formed on a mating mounting plate. The end of the tubular fixture of the terminal device is fixed by pinching the attachment plate with a pair of nuts that are inserted into the attachment holes and screwed into the tubular fixture. An elastic material which is attached by fitting an inward flange formed on the circumference into a locking groove provided around the outer circumference of the tubular fixture, and covers the inner cable protruding from the tubular fixture. In the dust cover, the terminal portion of the control cable is characterized in that the outer peripheral surface of the end portion provided with the inward flange is tapered so that the tip enters the inner surface of the nut. Dust cover