JPH0648127Y2 - Engine throttle control device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to an improvement of an engine throttle control device.

[Conventional technology]

Industrial machines using an engine as a power source are used in all fields because of their advantages in maneuverability and operability. This industrial machine has an advantage that it can be easily adjusted to a desired working speed by adjusting the rotation speed of the engine, and can work at a speed that suits the working environment and working conditions. In this industrial machine, the engine rotation speed is adjusted to a desired speed during normal work, but when the work is interrupted,
Depending on the conditions at each time, the engine speed may be kept idling in order to save fuel for the next work. These operations are generally performed by an engine throttle control device that connects an engine control lever device that controls the rotation speed of the engine and an engine throttle lever with a control cable.

In the conventional engine throttle control device, both ends of the outer tube of the control cable are fixed to a fixed frame via fixing brackets.

[Problems to be solved by the device]

In the above-mentioned conventional device, the engine control lever device is operated during work to adjust the engine rotation speed to a desired speed, and when the work is interrupted, the engine control lever device is returned to save fuel, thereby reducing the engine speed. It is necessary to keep the rotation speed of the engine at an idling state, and then to restart the work, the engine control lever device must be operated again to the previously adjusted position. Moreover, since all of these operations are performed manually, the operation is very troublesome, and the operation must be repeated depending on the content of the work, which is very troublesome work.
There are problems such as poor operability and workability.

This invention solves the above-mentioned conventional problems, and makes it possible to easily switch the rotation speed of the engine from a normal working state to an idling state and vice versa by a switch operation. It is an object of the present invention to provide an engine throttle control device capable of improving fuel efficiency and workability, reducing fuel consumption, and enhancing an energy saving effect.

[Means for Solving the Problems]

To achieve the above object, the present invention relates to an engine throttle control device in which an engine control lever device and an engine throttle lever are connected by an inner cable of a control cable consisting of an inner cable and an outer tube through which the inner cable is inserted. A control lever side fixing bracket for fixing one end of the outer tube of the control cable near the control lever device, and an engine throttle lever side support for fixing the other end of the outer tube near the engine throttle lever. A bracket is provided, and this engine throttle lever side support bracket is configured to be able to change the position by a predetermined distance in the axial direction of the control cable. Is the provided comprising constituting the braking system. The switch of the motor is provided at an arbitrary position where the operator can easily operate it.

[Action]

According to this configuration, the electric motor is driven by the switch operation and the position of the support bracket is changed, so that the rotation speed of the engine can be switched from the normal working state to the idling state and vice versa. It is extremely easy to perform, improves operability and workability, reduces fuel consumption, and enhances energy saving effect.

〔Example〕

 An embodiment of this invention will be described with reference to the drawings.

FIG. 1 shows a working state, and FIG. 2 shows a state in which the working state is switched to an idling state. In this figure, the engine throttle control device is configured by connecting a control lever device 1 and an engine throttle lever 2 with a control cable 3. The control cable 3 is configured such that the inner cable 5 is slidably inserted into the outer tube 4, and one end (left end in the drawing) of the outer tube 4 is fixed by a control lever side fixed bracket (hereinafter referred to as a fixed bracket) 6 to a fixed frame 7 The other end (right end in the drawing) of the engine throttle lever side support bracket (hereinafter referred to as support bracket) 8 can be repositioned within a predetermined range (between a and b) in the cable axis direction with respect to the fixed frame 9. The inner cable 5 has one end connected to the control lever device 1 by a connecting tool 10 and the other end connected to the engine throttle lever 2 by a connecting tool 11. An electric motor 12 is installed on the fixed frame 9 and the motor 12
The bracket 8 is connected to the above through a transmission 13 such as a speed reducer. The transmission 13 for the electric motor 12 and the bracket 8 can be designed by combining reduction gears, racks and pinions, worms and worm wheels, and various other devices. The electric motor 12 is connected to a switch and a power source provided at a position where an operator can easily operate. The electric motor 12 and the transmission device 13 constitute a drive device according to the present invention.

In this structure, the bracket 8 is held at a position a far away from the engine throttle lever 2 during normal work as shown in FIG. When the engine control lever device 1 is operated in the acceleration direction (clockwise direction) in this state, the inner cable 5 of the control cable 3 is pulled, and the engine throttle lever 2 is rotated by the spring 14
It is rotated in the clockwise direction against, and is controlled to accelerate the rotation speed of the engine. Further, by stopping the engine control lever device 1 at a desired position, the engine is maintained at a desired rotation speed.

Next, in the case of interrupting the work, or the like, the electric motor 12 is normally rotated by a switch operation as necessary, and the transmission device is rotated.
The bracket 8 is moved via 13 to a position b closer to the engine throttle lever 2 than the position a in FIG. As a result, as shown by the solid line in FIG.
The other end (the right end in the drawing) of the outer tube 4 is brought closer to the engine throttle lever 2 side, and as a result, the pulling force of the engine control lever device 1 on the inner cable 5 is relaxed, and the engine throttle lever 2 is rotated counterclockwise by the spring 14. And is returned to the idling position, the engine is idling, and fuel consumption is reduced.

In this case, the control cable 3 is loosened via the electric motor 12, the transmission 13, and the bracket 8 by simply operating the switch while leaving the engine control lever device 1 in the position adjusted during the above work, and the engine throttle The lever 2 is automatically returned to the idling position. Therefore, the engine control lever device 1
There is no need to return the to the idling position, the operation is simple and quick.

Further, when the work is restarted, the transmission 13 is operated by, for example, reversing the electric motor 12 by operating the switch.
The bracket 8 is returned to its original position through the state shown in FIG. At this time, since the engine control lever device 1 is left in the adjustment position during the work, an initial pulling force acts on the engine throttle lever 2 via the inner cable 5, and as a result, the engine throttle lever 2 is reversed. It is rotated clockwise, returned to the idling position, the engine reaches the previously adjusted rotational speed, and work is resumed. In this case as well, it is not necessary to operate the engine control lever device 1, and the engine can be automatically returned to the speed adjusted last time only by operating the switch, so the operation is very simple.

[Effect of device]

As described above, according to the present invention, the engine control lever device adjusts the engine rotation speed to an appropriate value for the work, and then the engine is put into the idling state or returned to the original rotation speed to restart the work. When operating the engine, the engine rotation state can be switched by simply operating the switch, and it is not necessary to operate the engine control lever device as in the past, and the switching operation is extremely simple, improving operability and workability. it can.
Further, there is an operation effect that the fuel consumption can be reduced and the energy saving effect can be enhanced, which is very economical.

[Brief description of drawings]

FIG. 1 is a conceptual diagram of a state during normal work showing an embodiment of the present invention, and FIG. 2 is a conceptual diagram showing a state of switching to the idling state. 1 ... Engine control lever device, 2 ... Engine throttle lever, 3 ... Control cable, 6
...... Control lever side fixed bracket, 7 ...... Fixed frame, 8 ...... Engine throttle lever side support bracket, 9 ...... Fixed frame, 12 ...... Electric motor.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Creator Kazuyuki Doi 2-7-3 Kabeminami, Asakita-ku, Hiroshima-shi, Hiroshima

Claims (1)

[Scope of utility model registration request] 1. An engine throttle control device in which an engine control lever device and an engine throttle lever are connected by an inner cable of a control cable consisting of an inner cable and an outer tube through which the inner cable is inserted. A control lever side fixing bracket that fixes one end of the outer tube of the control cable is provided near the device, and an engine throttle lever side support bracket that fixes the other end of the outer tube is provided near the engine throttle lever. The engine throttle lever side support bracket was configured to be able to change the position by a predetermined distance in the axial direction of the control cable, and a drive device for changing the position of this support bracket was provided Engine throttle control apparatus according to claim.