JPS6349765Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a mechanism for a control cable operating device. More specifically, the present invention relates to a mechanism of a control cable operating device that allows a constant operating stroke of the inner cable to be obtained immediately, allows for fine adjustment, and allows the inner cable to be quickly returned to its original position.

Conventionally, in the case of operating devices for control cables (hereinafter simply referred to as cables) for such purposes, a knob shaft is moved in the axial direction by a screw, such as an idling adjustment device (not shown) for a diesel engine. There was one that had a structure in which the inner cable was gradually pulled. However, with such a device, the knob must be rotated many times to increase the idle, and once the engine warms up, the knob must be rotated again to return to its original state, which is an inconvenience. However, it had the disadvantage that it required a lot of effort to turn the knob.

Furthermore, in order to eliminate the above drawbacks (not shown)
By pressing the button provided on the knob, the engagement between the retractable protrusion provided on the knob shaft and the female thread carved on the inner circumferential surface of the casing is released, and the knob is pulled to adjust the idle up as desired. In some devices, when the button is released, the protrusion provided on the knob shaft and the female thread carved on the inner circumferential surface of the casing engage again, and fine adjustments are then made by rotating the knob. However, with such a device, the idle up that is set by pulling the knob after disengaging the first screw relies only on the sense of the hand and the engine sound heard by the ears. It is extremely difficult to apply. Another drawback is that the amount of pullout of the knob shaft differs each time the knob is operated, and fine adjustment with the screw must be made each time in order to achieve stable idle up.

In view of the above-mentioned drawbacks of the conventional technology, the main purpose of the present invention is to provide a control cable that allows the knob shaft to be pulled out by a predetermined amount by operating the knob, thereby always providing a stable idle up. to provide operating equipment.

An embodiment of the present invention will be explained with reference to the drawings.
Fig. 1 is a partially cutaway side view showing the main parts of the mechanism of the present invention, Fig. 2 is a partially cutaway front view of the main parts in Fig. 1, and Fig. 3 is a partially cutaway front view of the main parts in operation. FIG. 4 is a partially cutaway side view and a perspective view schematically showing the device of the present invention.

1 is a control cable consisting of a conduit 2 and an inner cable 3 slidably inserted into the conduit.
Reference numeral 4 is a cylinder having a rectangular cross section, and a control cable conduit 2 is fixed to the bottom of the tip, and a locking groove projecting outward in the radial direction is provided near the rear end. Inside the casing 4, a rectangular locking collar 6 having a cylindrical shape and substantially the same shape as the inner surface of the casing that slides inside the casing is provided at the tip, a knob 7 is fixed to the rear end, and a spring is attached. The operating member 9 biased in the direction A by 8 is inserted, and the adjusted member 10, to which the inner cable 3 is crimped at the tip and a female screw 11 is carved at the rear end, is non-rotatable and non-sliding. It is inserted freely. Reference numeral 12 denotes a fine adjustment member which is rotatably attached to the inner circumferential surface 9a of the operating member 9, and has a male thread 13 at its tip that can be screwed into the female thread 11 formed on the adjusted member 10. It has a structure in which a fine adjustment knob 14 is fixed to the rear end.

The operation of the device of the present invention will be explained with reference to FIGS. 1 to 3, taking as an example the case where it is used for idling control of a diesel engine.

First, before or at the same time as starting the engine, the knob 7 is biased in the direction A by the spring 8.
in direction B, and lock the locking collar 6 on the side surface 5a of the locking groove 5.
When the knob 7 is further rotated in the C or D direction, the locking collar is locked in the locking groove 5, resulting in the state shown in FIG. 3. In this state, the knob 7 does not return to the direction A, and the member 10 to be adjusted, which is screwed to the tip of the fine adjustment member 12, is also slid in the direction B, so that it is not crimped to the member 10 to be adjusted. A remote fuel injection pump can be operated by the inner cable 3 to achieve a stable and arbitrary idle increase.
If the idle up at that time is not appropriate, rotate the fine adjustment knob 14 in the C or D direction to slide the adjusted member 10, which is screwed onto the tip of the fine adjustment member 12, in the A or B direction. Since the idle up can be finely adjusted by adjusting the idle up position, the optimum idle up position can be set.

Next, when the engine is completely warmed up in the idle up state as described above, rotate the knob 7 in the C or D direction to remove the locking collar 6 from the locking groove 5, and the spring 8 will be attached in the A direction. The engine is returned to the states shown in FIGS. 1 and 2 by the force of the engine, and the idle-up state is released.

Once the optimum idle up position is set in the first adjustment by the above operation, in the device of the present invention, the fine adjustment knob 14 is mostly operated for subsequent idle ups. There is no need to do so, and you should not hesitate to turn knob 7 under any circumstances, including in noisy places where engine sounds are difficult to hear.
By pulling in direction B and further rotating in direction C or D to lock the operating member, you can easily achieve the desired optimum idle up at any time, and at the same time cancel the idle up with a single action. This is a device of extremely great practical value as it can produce a number of effects.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, in which Fig. 1 is a partially cutaway side view of the main part, Fig. 2 is a partially cutaway front view of the main part in Fig. 1, and Fig. 3 is an operation diagram. FIG. 4 is a partially cutaway side view of the main parts showing the state, and FIG. 4 is a perspective view schematically showing an embodiment of the device of the present invention. 1: control cable, 2: conduit, 3: inner cable, 4: casing, 5: locking groove, 6: locking collar,
7: Knob, 8: Spring, 9: Operation member, 9a: Inner peripheral surface, 10: Adjusted member, 11: Female thread, 12: Fine adjustment member, 13: Male thread, 14: Fine adjustment knob.

Claims (1)

[Claim for Utility Model Registration] A casing having a conduit fixed to its tip through which an inner cable of a control cable is inserted, and a casing that is slidably inserted into the casing to remotely control a driven device by operating in the pulling direction. In a control cable operating device having a knob bar having an inner cable swaged at its tip and a knob fixed to its rear end, (a) the casing is a cylinder with a substantially rectangular cross section, and a knob is fixed to the bottom of the tip; (b) The casing has a cylindrical shape and has a distal end that is slidable within the casing. A rectangular locking collar is provided, the knob is fixed to the rear end, and an operating member biased toward the tip by a spring is fitted, the inner cable is tightened to the tip, and a female thread is attached to the rear end. (c) is rotatably inserted into the inner peripheral surface of the operating member, is pivotally connected to the knob, and has a distal end screwed into the female thread; 1. A control cable operating device comprising: a fine adjustment member having a matching male thread and a fine adjustment knob fixed to the rear end thereof.