JPH0117690Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is to attach the terminal of the outer tube of the control cable to a frame etc., which transmits operating force in either or both directions of pushing and pulling by inserting the inner cable freely into the outer tube, and then attaching the inner cable to the frame, etc. The present invention relates to a terminal device for connecting a terminal of an inner cable to an operating member, and particularly relates to a device that prevents vibration of an inner cable.

When connecting the movable members on the driven side and the driving side with a control cable with an inner cable inserted freely through the outer tube, it is necessary to fix a metal cylindrical fixture to the end of the outer tube and attach it to the frame, etc. The inner cable or the rod connected to its terminal protrudes from the cylindrical fixture and is connected to the movable member. For example, when connecting the operating lever and change lever of an automobile transmission, the driven The vibrations of the engine are transmitted to the inner cable and then to the change lever, causing discomfort to the driver.To prevent this, the cylindrical fixture is made of metal with a high specific gravity such as lead or zinc. A method has been proposed in which vibration of the inner cable is prevented by fitting a ring-shaped weight onto the outside and fixing it by caulking to increase the mass of the cylindrical fixture and reducing its natural frequency. Since lead and zinc are soft, the weights will undergo plastic deformation due to engine vibrations and radiant heat, and the caulking will loosen and come off from the cylindrical fixture, resulting in a loss of anti-vibration function, as well as the loss of the weights. The problem was that the vibrating control cable would bounce around and damage the surface of the outer tube.

The present invention eliminates these drawbacks and allows the weight to be fixed to the cylindrical fixture in a non-removable manner.
It is an object of the present invention to provide a control cable terminal device that can reliably prevent vibration of an inner cable.

Hereinafter, some embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 1 shows a first embodiment of the present invention, in which 1 is an outer tube, in which a strand 3 made of a large number of thin steel wires is formed around a liner 2 made of synthetic resin, and a flat steel wire is arranged around the strand 3. 5 is spirally wound, and its outer periphery is further covered with a jacket 6 made of synthetic resin, and an inner cable 10 made of a single wire 8 spirally wound around a stranded wire 7 is freely slidably inserted into the liner 2. By doing so, a control cable 11 is configured that transmits operating force in both push and pull directions. A metal inner cylinder 12 is fixed to the end of the outer tube 1 by fitting its center hole 15 and caulking the outer periphery, and sandwiching a flange 16 formed on the outer periphery near the center in the length direction from both sides. An outer cylinder 21 is fitted through a seal 20 that covers the cushions 17 and 18 and the tip, and the inner cylinder 12 described above,
The cushions 17, 18, the seal 20, and the outer cylinder 21 constitute a cylindrical fixture 22 for fixing the end of the control cable 11 to a frame, etc., and the diameter of the tip of the outer cylinder 21 is reduced. Part 2
1a into the mounting groove 25 of the bracket 24 formed on the transmission (not shown), and
A curved leg portion 29 is provided in the engagement groove 23 recessed in 1a.
It is fixed by inserting a U-shaped spring member 39 having a U-shaped spring member 39. Here, the cushions 17 and 18 are for absorbing vibrations transmitted from the frame to the inner cable via the outer cylinder 21, but in some cases, they may be removed, and the cylindrical fixture 22 is attached to the inner cable 12. It is also possible to have a structure in which the outer cylinder 21 and the outer cylinder 21 are integrated. A spherical concave surface 26 formed at the tip of the center hole 15 of the inner cylinder 12 has a spherical head 3 formed at the rear end of the sleeve 28 having a sliding hole 27.
0 is fitted, and the sleeve 28 is supported to swing freely, and an inner tube protruding from the outer tube 1 is inserted into a blind hole 32 bored at the rear end of the rod 31, which is fitted into the sliding hole 27 and slidably fitted. The terminal of the cable 10 is inserted and fixed by caulking,
The tip of the rod protruding from the sleeve 28 is connected to an operating lever (not shown) of the transmission on the driven side, and the tip of the rod 31 on the other side is connected to a change lever on the drive side. As the rod 31 slides inside the sleeve 28 due to the swinging drive of the lever, the inner cable 10 slides inside the outer tube 1, and the operating force is transmitted to the driven side. With the movement, the rod 31 slides and the operating lever of the transmission swings, and as the rod 31 swings, the sleeve 28 swings around the head 30. ing.

An annular lead or zinc weight 33 is fitted onto the outer periphery of the inner cylinder 12 that protrudes rearward from the outer cylinder 21 of the cylindrical fixture 22, and the outer cylinder is caulked and fixed. , At the rear thereof, a cylindrical stopper 36 with a collar 35 protruding at the tip and a reduced diameter at the rear end side tightly fits the cylindrical portion 34 into the rear end of the inner cylinder 12, and the reduced diameter portion 37 is fitted onto the outer circumference of the outer tube 1 and fixed by caulking, and the front surface of the collar 35 is attached to the weight 33.
The cylindrical fixture 22 is in contact with the rear end and has a large mass due to the attachment of the weight 33, which prevents vibrations due to high frequency vibrations transmitted from the engine, and the weight 33 prevents engine vibrations and radiant heat. Even if plastic deformation occurs and the caulking loosens, the contact with the stopper 36 prevents it from coming off from the inner cylinder 12. In addition, if there is an obstacle behind the cylindrical fixture 22 fixed to the bracket 24 and it is necessary to bend the control cable 11 at a substantially right angle, the control cable protruding from the rear end of the inner cylinder 2 may be installed. The vicinity of the root of the cable 11 is restrained by the diameter-reduced portion 37 of the stopper 36, which prevents the inner cylinder 12 from being bent at a large curvature at the rear end, thereby improving operability and component durability. be.

Next, second to seventh embodiments of the present invention will be described based on FIGS. 2 to 7. Note that the control cable 11 and the cylindrical fixture 22 have the same structure as in the first embodiment.

In the second embodiment shown in FIG. 2, a weight 43 having a thin ring 40 protruding from the rear end is fitted into the inner cylinder 12, and its outer periphery is caulked and fixed. A cylindrical stopper 46 with a flange 45 formed at its tip fits its cylindrical portion 47 onto the outer periphery of the control cable 11 and is fixed by caulking, and the ring 40 of the weight 43 is bent inward and the stopper 46 is By contacting the collar 45, the weight 43 and the stopper 4 are
6 are connected to each other, so that even if the caulking of the weight 43 becomes loose, it will not move in the axial direction.In the third embodiment shown in FIG. A weight 53 having a concave shape in the annular groove 48 is fixed by caulking, and a cylindrical stopper 56 having a large diameter cylindrical portion 55 at its tip is attached to the small diameter cylindrical portion 57 behind it.
is fitted onto the outer periphery of the control cable 11 and fixed by caulking, and the cylindrical portion 55 at the tip of the stopper 56 is fitted into the groove 48 of the weight 53, so that even if the caulking of the weight 53 is loosened, its radial play will not occur. In the second and third embodiments, as in the first embodiment, when the control cable 11 is bent and routed, the control cable 11 is prevented from touching the end of the inner cylinder 12. There is an advantage that the cylindrical portions 45, 57 of the stoppers 46, 56 prevent the stoppers 46, 56 from being bent to a large curvature.

In the fourth embodiment shown in FIG. 4, a weight 63 having a protruding diameter-reduced portion 58 at the rear end is fixed to the inner cylinder 12 by caulking, and an enlarged-diameter hole 60 is formed on the inner periphery. An aluminum ring-shaped stopper 66 connects the enlarged diameter hole 60 to the reduced diameter portion 5 of the weight 63.
8 and caulking the outer circumference, the inner cylinder 12
The reduced diameter portion 58 of the weight 63 is caulked into the enlarged diameter hole 60 of the stopper 66 and is firmly fixed to the inner cylinder 12. In the fifth embodiment shown in FIG. A weight 63 having the same shape as the fourth embodiment is fixed by caulking, and an aluminum ring-shaped stopper 76 is fitted into the reduced diameter portion 58 of the weight 63 and fixed by caulking. In the fourth and fifth embodiments, the reduced diameter portion 58 of the weight 63 is fixed firmly to the inner cylinder 12 by aluminum stoppers 66 and 76, respectively. Since the weight 63 is caulked, the caulked portion does not undergo plastic deformation and loosen due to vibration or heat, which has the advantage of reliably preventing movement of the weight 63.

In the sixth embodiment shown in FIG. 6, the same annular weight 33 as in the first embodiment is fixed to the inner cylinder 12 by caulking, and behind it is a cylindrical stopper 86 with a flange 61 formed at the tip. The cylindrical portion 83 is fitted onto the control cable 11 and fixed by caulking, so that even if the weight 33 slides around the outer periphery of the inner cylinder 12, the rear end remains at the stopper 86.
In the seventh embodiment shown in FIG. 7, the same weight 3 as in the first embodiment is attached to the inner cylinder 12.
3 is fixed by caulking, and behind it is a stopper 96 that is made of a commonly used hose clip and has a spring steel plate bent into a cylindrical shape and a pair of knobs 87 and 88 formed at both ends. The weight 3 is fitted onto the outer periphery of the control cable 11 due to its elastic restoring force.
3 slides on the outer periphery of the inner cylinder 12, the rear end contacts one of the knobs 88 of the stopper 96 and is prevented from coming off the inner cylinder 12, as in the sixth embodiment. It's summery.

As specifically explained in the above embodiment,
In the control cable terminal device of the present invention, a cylindrical fixture attached to a fixing member is fixed to the terminal of the outer tube of the control cable, in which an inner cable is slidably inserted into the outer tube, and In a control cable terminal device in which an end of an inner cable is connected to an actuating member, an annular weight is fitted onto the cylindrical fixture and fixed by caulking, and is attached to the cylindrical fixture or the outer tube. Since the ring-shaped stopper that prevents the weight from escaping is fitted and fixed, the weight suppresses the vibration of the cylindrical fixture due to the vibration transmitted from the fixing member, and the vibration of the fixing member is transmitted through the inner cable to the other side. This prevents the weight from coming off the cylindrical fixture, even if the cylindrical fixture is installed in a location exposed to high temperatures and the weight's caulking loosens due to heat or vibration. is prevented by the stopper, so that the vibration-proofing function is not lost, and furthermore, the weight can be prevented from coming off onto the control cable and damaging the surface of the outer tube due to vibration. .

[Brief explanation of the drawing]

Fig. 1 is a sectional view of the first embodiment of the present invention, Fig. 2 is a partially cutaway side view of the second embodiment, Fig. 3 is a sectional view of main parts of the third embodiment, and Fig. 4 is a sectional view of the main part of the third embodiment. FIG. 5 is a sectional view of the main parts of the fourth embodiment; FIG. 5 is a sectional view of the main parts of the fifth embodiment;
FIG. 6 is a sectional view of the main part of the sixth embodiment, and FIG. 7 is a perspective view of the main part of the seventh embodiment. 1: Outer tube 1, 10: Inner cable, 11: Control cable, 22: Cylindrical fixture, 24: Bracket (fixing member), 33, 4
3, 53, 63: Weight, 36, 46, 56,
66, 76, 86, 96: Stoppa.

Claims (1)

[Scope of utility model registration request] A cylindrical fixture to be attached to a fixing member is fixed to the terminal of the outer tube of a control cable whose inner cable is slidably inserted into the outer tube, and the terminal of the inner cable protruding from the cylindrical fixture is connected to the actuating member. In the control cable terminal device, an annular weight is externally fitted onto the cylindrical fixture and fixed by caulking, and an annular stopper is provided on the cylindrical fixture or the outer tube to prevent the weight from escaping. A terminal device for a control cable, characterized in that it is fitted and fixed.