JPH07329599A - Accelerator cable cutoff device - Google Patents

Abstract

PURPOSE:To provide an accelerator cable cutoff device of such structure as not to generate acceleration even in the case of depressing an accelerator pedal by mistake and getting flurried at the time of danger or tire like where a brake pedal has to be depressed, while enabling acceleration when it is necessary. CONSTITUTION:An accelerator cable cutoff device is interposed at the intermediate part of an accelerator cable between an automobile engine and an accelerator pedal. A partition wall 3 is provided at the intermediate part of a cylinder 2, and one engine side is formed into an oil pump chamber 5 partitioned by the packing 4 of a piston shaft 1b. The oil pump chamber 5 is communicated with an oil tank with a check valve 11 interposed in between. On the other accelerator pedal side, an attraction plate 6 is provided at the tip of the piston shaft 1b protruded passing the partition wall 3, and a shaft 1a connected to an accelerator pedal side cable 8a and provided with an energizing spring 9 is provided with a magnet plate 7 opposedly to the attraction plate 6. The check valve 11 is provided with a force-opening means such as a solenoid 14.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an accelerator cable disconnecting device developed for the purpose of preventing accidents caused by the stepping on of a brake pedal and an accelerator pedal.

[0002]

2. Description of the Related Art An example in which a serious accident is caused by a stepping difference between a brake pedal and an accelerator pedal is often seen in newspapers and the like. Because of the difference in functions of braking and acceleration, there is no means other than a rational judgment to prevent the two from stepping on each other.
Even if a high-level preventive measure by incorporating a computer is considered, it must be expensive and complicated.

Therefore, the present inventor first examined a mechanism which is not complicated enough to be implemented, and which does not cause acceleration even if the accelerator pedal is depressed when there is a danger such as when the brake pedal should be depressed and when the accelerator pedal is panicked. A device interposed in the middle of the accelerator cable between the automobile engine and the accelerator pedal, wherein a partition wall is provided in the middle part of the cylinder and one engine side is an oil pump chamber separated by the packing of the piston shaft, The oil pump chamber communicates with an oil tank with a check valve interposed therebetween, and the other accelerator pedal side is provided with a suction plate at the tip of the piston shaft projecting beyond the partition wall, and a magnet plate facing the suction plate. Developed an accelerator cable breaker characterized by being installed on a shaft that is connected to the accelerator pedal side cable and has a biasing spring. It proposed in the real Unexamined Patent Publication No. 6-6065.

[0004]

It has been confirmed that this structure is an effective means for preventing an accident due to the wrong pedaling of the brake pedal and the accelerator pedal, and is useful for preventing the occurrence of an accident. However, as a result of subsequent studies, when traveling, for example, when approaching a steep uphill slope, or when the wheels are taken in a recess, there are other circumstances where it is unavoidable to forcefully depress the accelerator pedal, In such a case, in the structure proposed by Kaikaihei 6-6065, if the driver suddenly depresses with a force such as when suddenly applying a brake, the accelerator is blocked and acceleration becomes impossible, so improvement is necessary. Occurred.

[0005]

[Means for Solving the Problems] As a result of examining the above problems,
A device interposed in the middle of an accelerator cable between an automobile engine and an accelerator pedal, wherein a partition wall 3 is provided at an intermediate portion of a cylinder 2 and one engine side is provided with a piston shaft 1b.
An oil pump chamber 5 separated by the packing 4 of
The oil pump chamber 5 communicates with an oil tank 12 having a check valve 11 interposed therebetween, and the other accelerator pedal side is provided with a suction plate 6 at the tip of a piston shaft 1b projecting beyond the partition wall, and at the same time, a suction plate 6 is provided. In the accelerator cable shutoff device provided on the shaft 1a having the magnet board 7 connected to the accelerator pedal side cable 8a and having the biasing spring 9 facing each other, the check valve 11 is provided with the forced opening means 20. It was an accelerator cable breaker.

As an example of the forced opening means 20, a solenoid 1
There may be mentioned a means capable of pushing the check valve 11, such as 4, a cylinder, or a press link.

[0007]

With such a structure, when the accelerator pedal is operated in a normal state, the suction plate 6 and the magnet plate 7 are in close contact with each other, and the piston shaft 1b and the packing 4 provided therein are in the cylinder. As the oil moves inside, the oil flows from the oil pump chamber 5 in the cylinder into the oil tank 12 through the check valve 11. The reverse is also possible, and when the operating force of the accelerator is reduced, the magnet disc 7 moves backward together with the adsorption disc 6 by the biasing spring 9, and the oil also returns from the oil tank 12 into the cylinder.

If the accelerator pedal is depressed by a sudden and strong force such as sudden braking, the check valve is closed and the oil cannot flow into the oil tank 12. Therefore, the packing 4 and the suction plate 6 coaxial therewith
Will stop in the cylinder, so even if the accelerator pedal is stepped on further, the distance between the adsorption board 6 and the magnet board 7 will only separate, and the operating force (tension) of the engine side cable will become zero, and engine braking will It is possible to prevent runaway.

However, when it is necessary to strongly depress the accelerator pedal when driving, for example, when a driver is approaching a steep uphill slope, the solenoid 15 of the forced opening means 20 provided in the check valve 11 and the like are provided in the switch 15 provided in the driver's seat. When operated by, for example, operating the check valve 11, the check valve 11 is forcibly opened, and the oil pump chamber 5 and the oil tank 12 are in a communication state that allows free passage of oil. Therefore, the state where the accelerator pedal side cable and the engine side cable are connected in a normal running state is maintained to enable the acceleration of the engine.

[0010]

1 is a sectional view of the device of the present invention when the accelerator pedal is not depressed when the vehicle is stopped or idling. This device is located in the middle of the accelerator cable between the automobile engine and the accelerator pedal. A partition wall 3 is provided in an intermediate portion of a cylinder 2 supported by a bracket 10 on the vehicle body to form an oil pump chamber 5 which is separated from one engine side by a packing 4. This oil pump chamber 5 has an oil tank 12 with a check valve 11 interposed therebetween.
Is in communication with. At the end of the cylinder 2 on the engine side, there is an air passage hole 13 through which air flows in and out as the packing 4 moves. The check valve 11 has a structure in which a valve 11a capable of closing the valve seat 5b around the oil passage hole 5a between the oil pump chamber 5 and the oil tank 12 is biased to a normally open state by a spring 11b. The check valve can be adjusted by adjusting the biasing degree of the spring 11b by the adjuster screw 11c provided on the upper solenoid casing 14b of the valve adjusting rod 14a of the solenoid 14 provided on the oil tank 12.

Piston shaft 1b provided with the packing 4
Penetrates through the partition wall 3 of the cylinder and reaches the other accelerator pedal side, and a metal suction plate 6 is provided at the tip thereof. A magnet disk 7 is provided so as to face the attraction disk 6 so as to advance and retract in the cylinder by a shaft 1a. Axis 1a
Is connected to the accelerator pedal side cable 8a, and the biasing spring 9 is externally inserted so that the magnet board 7 is always maintained in the returning direction.

FIG. 2 shows a state where the accelerator pedal is operated in a normal state. When the accelerator pedal side cable 8a is pulled, it is pulled by the suction board 6 and the magnet board 7 so that the shaft 1b and the packing 4 provided thereon also move in the cylinder. Along with this, oil flows from the oil pump chamber 5 in the cylinder through the check valve 11 to the oil tank 12
It shows that it is flowing into. Of course, the reverse is also possible, and when the operating force of the accelerator is lowered, the magnet disc 7 is moved backward together with the adsorption disc 6 by the biasing spring 9, and the oil also returns from the oil tank 12 into the cylinder.

FIG. 3 is an enlarged view showing a state in which the accelerator pedal is accidentally depressed when the brake must be depressed. Since the shaft 1a connected to the accelerator pedal side cable 8a is pulled with a sudden and strong force such as stepping on the brake, the check valve 11 is closed due to the rapid movement of the packing 4 in the cylinder, and as a result, the oil pump The oil in the chamber 5 cannot flow into the oil tank 12. As a result, the suction plate 6 at the tip of the piston shaft 1b becomes immovable in the cylinder, and when the accelerator pedal is further stepped on, the suction plate 6 and the magnet plate 7 are separated as shown in the figure. That is, the tension of the shaft 1b connected to the engine-side cable becomes zero, which makes runaway impossible.

When the driver has to press the accelerator pedal strongly while traveling, for example, when approaching a steep uphill slope,
When the solenoid 14 provided in the check valve 11 is actuated by operating the switch 15 provided in the driver's seat, as shown in FIG. 4, the valve adjusting rod 14a of the solenoid 14 presses the spring 11b to cause the check valve 11 to move. Is forcibly opened, and the oil pump chamber 5 and the oil tank 12 are in a communication state that allows free passage of oil. Therefore, the state in which the accelerator pedal side cable and the engine side cable in a normal traveling state are connected is maintained to enable the acceleration of the engine. When the forced opening means 20 is operating (when the switch 15 is turned on), the red lamp lights up on the driver's seat panel or the buzzer sounds so that the forced opening means does not operate during normal driving. Make sure you can check. When the accelerator pedal is strongly depressed before the switch 15 is operated, in order to return the separated state of the suction board 6 and the magnet board 7 to the original close contact state, the accelerator pedal is once stopped and the bias spring is pressed. It is good to use the restoring force of 9 to restore it.

[0015]

As described above, according to the present invention, it is possible to perform rapid acceleration when necessary and prevent runaway due to a mistake in stepping on the accelerator and brake, thereby achieving safety of the automobile.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of the device of the present invention when the accelerator pedal is not depressed when the vehicle is stopped or idling.

FIG. 2 is a cross-sectional view of the device of the present invention when the accelerator pedal is normally depressed.

FIG. 3 is an enlarged cross-sectional view when the accelerator pedal is stepped on instead of the brake pedal.

FIG. 4 is a sectional view of the device of the present invention when the accelerator pedal is strongly depressed on a steep climb or the like.

[Explanation of symbols]

 1a Shaft 1b Piston shaft 2 Cylinder 3 Bulkhead 4 Packing 5 Oil pump chamber 6 Adsorption board 7 Magnet board 8a Accelerator pedal side cable 8b Engine side cable 9 Energizing spring 11 Check valve 12 Oil tank 13 Air passage hole 14 Solenoid 14a Valve adjusting rod 15 Switch 20 Forced opening means

Claims (2)

[Claims] 1. A device interposed in the middle of an accelerator cable between an automobile engine and an accelerator pedal,
A partition wall 3 is provided in the middle of the cylinder 2 to form an oil pump chamber 5 on one engine side which is separated by the packing 4 of the piston shaft 1b.
Is connected to the oil tank 12 interposed therebetween, and the other accelerator pedal side is provided with a suction plate 6 at the tip of the piston shaft 1b projecting beyond the partition wall, and the magnet plate 7 is opposed to the suction plate 6 and the magnet plate 7 is used as an accelerator pedal. An accelerator cable cutoff device provided on a shaft 1a connected to a side cable 8a and having a biasing spring 9, wherein a check valve 11 is provided with a forced opening means 20. 2. An accelerator cable breaking device in which the forced opening means 20 according to claim 1 is a solenoid 14, a cylinder, or a pressing link provided in the check valve 11.