JPH0348412Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention fixes a cylindrical fixture with a flange on the outer periphery to the terminal of the outer casing of a control cable in which the inner cable is slidably inserted into the outer casing. A spherical head formed at the rear end of the sleeve is hooked to a reduced diameter portion formed on the inner periphery of the cylindrical fixture, so that the sleeve can swing freely relative to the cylindrical fixture, and The end of the inner cable is connected to the rod that is supported in an unmovable manner and slidably inserted into the sleeve, and the cover and cylindrical fixture are fitted around the outer periphery of the cylindrical fixture including the collar via an elastic material. In between, the rear end of a cylindrical seal whose front end is tightly fitted to the outer periphery of the sleeve is inserted and clamped, and the cover is inserted into the mounting hole of the fixing plate to fix the end of the control cable. Relating to fixation devices.

Problems to be solved by conventional techniques and ideas In this type of terminal fixing device in which the transmission of vibration between the control cable and the fixing plate is suppressed by an elastic material, there is a gap between the sleeve and the cylindrical fixing device. The seal, which seals and prevents water and dust from entering the sliding part of the spherical head of the sleeve, can't be removed by fitting the rear end between the cylindrical fixture and the cover. However, in the past, the inner and outer peripheries of the rear end of the seal were in close contact with the cylindrical fixture and the cover over almost the entire surface, so increasing the clamping pressure to prevent the seal from slipping out was necessary. The seal is strongly compressed and its elasticity decreases,
There was a drawback that vibrations were easily transmitted between the cylindrical fixture and the cover.

Means to Solve the Problems The present invention, as a means to solve such problems, provides a protrusion around the outer periphery of the rear end of the seal, and presses the protrusion with a cover to seal the seal. was held between cylindrical fixtures.

Functions and Effects of the Invention The present invention has the above structure, and the seal is held between the cylindrical fixtures by pressing the protrusion formed on the outer periphery of the rear end of the seal with the cover. Even if the elastic force of the cover is increased in order to hold it strongly, the force acts only on the protrusions, and the other parts are hardly compressed and have sufficient elasticity, so the cylindrical fixing It is possible to effectively suppress vibration transmission between the cover and the cover, and since the protrusion is strongly pressed by the cover, there is an effect that sufficient sealing performance can be ensured.

Embodiment Hereinafter, an embodiment of the present invention will be described based on the attached drawings.A control cable 1 is formed by inserting an inner cable 3 into an outer casing 2 so as to freely slide. The rear end of the cylindrical fixture 4 with the protruding collar 5 is fixed by caulking, and the distal end of the inner cable 3 is inserted into the spherical recess 6 formed on the inner periphery of the distal end of the cylindrical fixture 4. A large-diameter spherical head 9 formed at the rear end of the sleeve 8, which is formed by freely sliding the rod 7 connected to the sleeve 8, is inserted from the distal end side of the cylindrical fixture 4, and the cylinder is crimped with rolls. The sleeve 8 is formed by reducing the diameter of the portion of the spherical recess 6 of the shape fixing device 4 that is slightly closer to the tip over the entire circumference so that the cross section becomes a substantially arcuate shape, and locking it with the spherical head 9. can swing freely relative to the cylindrical fixture 4,
and two elastic bodies 12 for preventing vibration transmission made of rubber material, which are irremovably fitted and attached to the outer periphery of the cylindrical fixture 4 so as to sandwich the collar 5;
A cylindrical cover 13 is fitted through 12,
Between the cover 13 and the cylindrical fixture 4, a rubber seal 15 is provided in a portion corresponding to the spherical recess 6, the front end of which is externally fitted onto the sleeve 8 and fixed by a ring 14. The rear end is clamped.

This seal 15 is connected to the cylindrical fixture 4 and the cover 13.
It has an appropriate wall thickness to prevent the transmission of vibration between the cylindrical fixture 4 and the inner periphery of its large diameter rear end, and the outer periphery of the part whose diameter has been reduced by roll caulking of the cylindrical fixture 4. A fitting strip 18 that aligns with the formed circumferential groove 17 is formed over the entire circumference, and a circumferential section having a substantially arcuate cross section is formed on the outer periphery at a position corresponding to the fitting strip 18. A projecting strip 20 in the direction is formed over the entire circumference, and the rear end of this seal is tightly fitted to the outer periphery of the cylindrical fixture 4, and the fitting strip 18 is inserted into the reduced diameter portion of the cylindrical fixture 4. By caulking the cover 13 from the outer circumferential side while the cover 13 is fitted into the groove 17 of the seal 15, the protrusion 2 on the outer circumference of the seal 15 is
0 is crushed by the cover 13 and elastically deforms, and the seal 15 cannot be removed with a very small gap s left between the outer peripheral surface of the seal 15 and the inner peripheral surface of the cover 13. The diameter-reduced mounting portion 21 of the cover 13 is inserted into the mounting hole 23 of the bracket 22 protruding from the frame (not shown), and the lock is inserted into the locking groove 24 formed on the outer periphery of the mounting portion 21. The end of the control cable is fixed by fitting the curved leg 26 of the spring plate 25 in the shape of a letter.

In the device of this embodiment having the above configuration, since the portion of the seal 15 where the protruding strip 20 and the fitting strip 18 are formed is strongly pressed between the cover 13 and the cylindrical fixture 4, The intrusion of water and dust is reliably prevented, and since there is a gap s between most of the seal 15 and the inner peripheral surface of the cover 13, it is unlikely to be crushed. Since the cover 13 and the cylindrical fixture 4 have sufficient elasticity without being
Between them, vibrations from one side are absorbed by the seal 15 and the two elastic bodies 12, 12, and thus are prevented from being transmitted to the other side.

In addition, in this embodiment, in order to prevent the elasticity of the seal 15 from being impaired, the seal 15 is
Although a very small gap s is left between the outer circumferential surface of the seal 15 and the inner circumferential surface of the cover 13, if the degree of crushing of the seal 15 is small and its elasticity is sufficiently ensured, , the outer peripheral surface of the seal 15 and the cover 1
The inner peripheral surfaces of No. 3 may be brought into close contact with each other.

In addition, in this embodiment, the fitting strip 18 is formed on the inner periphery of the seal 15 and is fitted into the groove 17 formed on the outer periphery of the cylindrical fixture 4 by roll caulking. This hook makes it difficult for the rear end of the seal 15 to come out from between the cover 13 and the cylindrical fixture 4.

[Brief explanation of the drawing]

The accompanying drawings show an embodiment of the present invention, with FIG. 1 being a longitudinal sectional view and FIG. 2 being a partially cutaway perspective view of a seal. DESCRIPTION OF SYMBOLS 1... Control cable, 2... Outer casing, 3... Inner cable, 4... Cylindrical fixture, 5... Flange, 6... Spherical recess, 7... Rod, 8... Sleeve, 9... Spherical head, 12...
Elastic body, 13... Cover, 15... Seal, 20
... Protrusion, 22 ... Bracket, 23 ... Mounting hole.

Claims (1)

[Scope of utility model registration request] A cylindrical fixture with a flange projecting on the outer periphery is fixed to the terminal of the outer casing of the control cable in which the inner cable is freely slidably inserted into the outer casing, and a diameter reduction is formed on the inner periphery of the cylindrical fixture. A spherical head formed at the rear end of the sleeve is hooked to the cylindrical fixture to support the sleeve in a manner that allows the sleeve to swing freely relative to the cylindrical fixture and cannot be removed from the cylindrical fixture. The end of the inner cable is connected to the rod, and the front end of the sleeve is inserted between the cover fitted to the outer periphery of the cylindrical fixture including the collar via an elastic material and the cylindrical fixture. In a control cable terminal fixing device in which the rear end of a cylindrical seal tightly fitted to the outer periphery is inserted and clamped, and the cover is fixed by fitting into a mounting hole of a fixing plate, A terminal fixing device for a control cable, characterized in that a protrusion is provided around the outer periphery of the end portion, the protrusion is pressed by the cover, and the seal is held between the cylindrical fixtures.