JPS6110010Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for adjustable positioning of the end of a control cable conduit or the end of an inner cable inserted into the conduit.

More particularly, the conduit end of the control cable is adjustably positioned to provide a desired length from the conduit end to the end of the protruding inner cable, and that length is adjusted during use. Relating to improvements in devices for positioning without change.

The basic structure of a control cable (hereinafter simply referred to as a cable) consists of a flexible spiral conduit made of spirally wound metal wire, and a stranded metal wire slidably inserted into the conduit. It consists of a flexible inner cable, and the operation of one of the inner cables is accurately transmitted to the other. Due to the structure of the inner cable, it is inevitable that the inner cable will stretch due to the above-mentioned operation, and therefore, it becomes necessary to adjust the length of the inner cable. Furthermore, it is often necessary to adjust the length of the inner cable in order to adjust other driven equipment.

In order to perform the above-mentioned adjustment, conventional devices of this type include screwing a positioning nut onto a threaded member fixed to the end of the conduit or inner cable, and preventing the positioning nut from loosening due to vibrations, etc. There was a device in which a separate lock nut was provided for this purpose. With this structure, when the lock nut loosens, the positioning nut also loosens, causing the fixed position to change, making it impossible to accurately remotely control the driven equipment. Further, when tightening or loosening the lock nut, a tool must be used, which is extremely inconvenient, especially when working inside the narrow engine room of an automobile.

The main object of the present invention is to provide a control cable adjustment and positioning device which eliminates the above-mentioned drawbacks. Other effects will become clear from the explanation below.

An embodiment of the present invention will be explained with reference to the drawings.
In FIGS. 1 and 2, 1 is a control cable, 2 is a conduit, and 3 is an inner cable inserted into the conduit. A tubular metal fitting 4 is attached to one end of the conduit 2, and its outer peripheral surface is a threaded surface 4a. A nut 5 is screwed into the threaded surface 4a, and its outer bottom surface 6d abuts one side of the nut. The adjusting member 6, in which the threaded surface 4a is inserted and assembled into the hole 6c, is provided with an engaging claw 6a projecting outward (leftward in the drawing) at an appropriate position on the outer bottom surface 6d. A locking protrusion 6b is provided at an appropriate position on the inner bottom surface 6e and protrudes inwardly (towards the right in the drawing), and is adapted to engage with one side and rotate together with the nut. Reference numeral 7 denotes a substantially cylindrical holder made of elastic synthetic resin, rubber, etc., and an insertion hole 7 provided so as to pass through its center in the axial direction.
a is inserted through the threaded surface 4a, and furthermore, a suitable number of locking recesses 7 are provided on the side surface that abuts the inner bottom surface 6a.
b are arranged in a chrysanthemum pattern, and the locking protrusion 6b is engaged with any position of the locking recess 7b to prevent rotation. The inner cable 3 passes through a through hole 4b provided in a tubular metal fitting 4, and one end thereof reaches a driven device (not shown) such as a clutch mechanism of an automobile, and the other end is fixed to a cable guiding metal fitting 9. The cable end fitting 9 connects to an operating device (not shown). 8, the plate 8a is a locking cylinder fixed to the plate and is configured to lock the outer peripheral surface of the holder 7; the operating device is a pedal or lever connected to the cable end fitting 9; A return spring (not shown) is installed on the driven device side, and an external force is applied so that the pulling operation in the B direction by the operating device can be returned to the A direction.In other words, the conduit 2 is in the opposite direction. The tubular fitting 4 attached to the end of the conductor 2 presses the nut 5 and the adjusting member 6 against the holder 7, and as a result, the locking protrusion 6b is in the locking recess. The adjusting member 6 is fixedly engaged with the groove 7b so as not to rotate.

To explain the function and effect of the device of the present invention, if the inner cable 3 stretches due to long-term use of the cable, or if it becomes necessary to adjust the length of the conduit due to adjustment of the driven equipment, etc., Tubular metal fitting 4
When the locking protrusion 6b and the locking groove 7b are disengaged by moving slightly in the direction A by hand, and the adjusting member 6 is rotated, the locking pawl 6a provided on the adjusting member 6 is moved as described above. Since it is engaged with one side of the nut 5 and rotates with the nut 5, the nut 5 also rotates and moves on the threaded surface 4a to change the length of the conduit 2. In this way, the adjustment of the desired length of the conduit is completed, and when the hand that was moving the tubular metal fitting 4 in the A direction is released, the conduit 2 moves to B by the force of the return spring as described above.
At the same time, the adjustment member 6 is pressed against the holder 7, that is, the locking protrusion 6b engages again with an arbitrary position of the locking groove 7b, and the adjustment member is fixed and positioned so as not to rotate.

This device does not require the use of tools at all in the above-mentioned adjustment operations, and has an excellent effect that allows adjustments to be made extremely easily and quickly even in confined spaces such as the engine compartment of a car. Since it is extremely simple, it also has the advantage of being available at a low price.

Furthermore, since the holder 7 is made of an elastic body as described above, it can sufficiently cope with the pressure contact of the adjustment member 6 in the B direction, and the locking protrusion 6b does not escape from the locking groove 7b, and its elasticity This device also has a buffering effect to prevent vibrations generated on the driven equipment side from being transmitted through the cable and reaching the plate 8.

[Brief explanation of the drawing]

The drawings relate to an embodiment of the present invention, with FIG. 1 being a partially cutaway side view showing its structure, and FIG. 2 being a perspective view showing the state of disassembly of individual members. 1: Control cable, 2: Conduit, 3: Inner cable, 4: Tubular metal fitting, 4a: Threaded surface, 5: Nut,
6: Adjustment member, 6a: Engagement claw, 6b: Locking protrusion,
6c: hole, 6d: outer bottom surface, 6e: inner bottom surface, 7: holder, 7a: insertion hole, 7b: locking groove.

Claims (1)

[Scope of utility model registration request] A tubular metal fitting that is attached to the end of the conduit through which the inner cable of the control cable is inserted and has a threaded surface on its outer circumferential surface; a nut that is threaded onto the threaded surface; and a nut into which the threaded surface can be inserted. A hole is bored approximately near the center, and an engaging pawl for engaging and rotating with the nut is provided outwardly protruding from the outer bottom surface, and furthermore, an inward locking protrusion is provided at an appropriate position on the inner bottom surface. a deep round dish-shaped adjustment member and an insertion hole through which the threaded surface can be inserted, penetrating the adjustment member in the axial direction substantially in the center;
A control cable adjustment and positioning device comprising: a substantially cylindrical holder having a chrysanthemum-shaped locking groove in which the locking protrusion can be locked on a side surface that contacts the inner bottom surface;