JPH0569756A - Acceleration interlock device - Google Patents

Abstract

PURPOSE:To provide reduction in cost and space restriction. CONSTITUTION:A solenoid 16 is excited and demagnetized according to the opening/closing of a door or the operation/non-operation of a parking brake. A cylinder device 18 is provided with a cylinder 22 which stores working fluid, the first piston 24 which is linked with a cable 12, the second piston 26, and the third piston 28 which is linked with the movable iron core 17 of the solenoid. A member 20 which is engaged with an acceleration pedal is provided with a stopper 36, and linked with the second piston 26. It is possible to interlock the acceleration pedal 14 and the cable 12 through the first piston 24 and the second piston 26, and inhibit it by the third piston 28.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an accelerator interlock device interposed between a cable for increasing / decreasing the engine speed of a vehicle and an accelerator pedal for advancing / retreating the cable.

[0002]

2. Description of the Related Art A stopper member for preventing depression of an accelerator pedal is formed so as to be advanced and retracted by a drive device,
An accelerator interlock device has been proposed in which a stopper member is advanced to prevent the accelerator pedal from being depressed when the vehicle door is opened (Japanese Utility Model Publication No. 61-137030).

[0003]

In the accelerator interlock device, the cost is high because the motor and the link mechanism are used as the drive device. In addition, the space around the accelerator pedal is limited, so the degree of freedom in arrangement is low.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an accelerator interlock device capable of suppressing an increase in cost and having less space restrictions.

[0005]

The invention described in claim 1 is an accelerator interlock device interposed between a cable for increasing or decreasing the engine speed and an accelerator pedal for advancing and retracting the cable. With a solenoid,
It includes a cylinder device and a member that engages with an accelerator pedal. The solenoid is magnetized and demagnetized depending on whether the door is opened or closed or the parking brake is activated or deactivated.
The cylinder device includes a cylinder containing a working fluid, a first piston movably arranged in the cylinder in a sealed state, and a first piston coupled to the cable, and a first piston movably arranged in the cylinder in a sealed state. Two pistons and a third piston movably arranged in the cylinder in a hermetically sealed manner and coupled to the movable iron core of the solenoid. And the member that engages with the accelerator pedal,
It has a stopper and is connected to the second piston. The interlock between the accelerator pedal and the cable is the first
And via a second piston and can be blocked by said third piston.

An accelerator interlock device according to a second aspect of the present invention includes a member engaging with an accelerator pedal, a spring, and a solenoid. The member has a base portion connected to the cable and an engagement portion swingably connected to the base portion. This engaging portion has a stopper and releasably engages with the accelerator pedal. The spring biases the engaging portion of the member toward a swing position that is separated from the accelerator pedal. The solenoid is energized and demagnetized in response to opening / closing of a door or activation / deactivation of a parking brake, and a movable iron core is provided with means for contacting an engaging portion of the member. The interlock between the accelerator pedal and the cable is performed when the engaging portion of the member is engaged with the accelerator pedal.

[0007]

In the invention described in claim 1, when the door is opened or the parking brake is operated, the third piston is moved by the solenoid, and along with this movement, the member coupled to the second piston is moved. , Move the stopper away from the accelerator pedal. Further, in the invention described in claim 2, the contact means provided on the movable iron core of the solenoid is moved, and the engaging portion of the member is moved to the swing position by the action of the spring. As a result, even if the accelerator pedal is depressed, the accelerator pedal and the cable do not interlock.

Since it is not necessary to arrange the parts constituting the accelerator interlock device around the accelerator pedal,
There are few restrictions on space and the degree of freedom in placement is high.

Only the solenoid is driven, which is cheaper than the motor, so that it is possible to prevent the cost from increasing.

When the interlock between the accelerator pedal and the cable does not occur when the door is opened, the danger of traveling with the door open can be avoided. In addition, when it is prevented from occurring when the parking brake is activated, it is possible to prevent heat generation due to forgetting to return the parking brake.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, an accelerator interlock device 10 is interposed between a cable 12 for increasing / decreasing a rotational speed of an engine (not shown) and an accelerator pedal 14 for advancing / retreating the cable 12. The solenoid 1
6, a cylinder device 18, and a member 20 for engaging the accelerator pedal.

The solenoid 16 is magnetized and demagnetized depending on whether the door is opened or closed or the parking brake is operated or not operated. In the illustrated embodiment, the solenoid 16 is excited when the door is opened or the parking brake is actuated, and the movable iron core 17 extends downward from the position shown. On the contrary, when the solenoid 16 is demagnetized, the movable iron core 17 contracts and returns to the position shown in the figure.

Cylinder device 18 includes a cylinder 22 containing a working fluid 23, which is preferably a liquid, a first piston 24, a second piston 26, and a third piston 28.

Cylinder 22 is T-shaped with a first bore 30 and a second bore 32, and has a first piston 24.
And the second piston 26 are located in the bore 30, and the third piston 28 is located in the bore 32. An O-ring 34 is attached to each pistund and the piston is movable in the bore in a sealed state.

The cable 12 is connected to the first piston 24, and the member 20 for engaging the accelerator pedal is connected to the second piston 26.
And the movable iron core 17 is connected to the third piston 28.

The member 20 engages with the accelerator pedal 14 and has a stopper 36. As shown in FIG.
A bifurcated yoke 15 is provided in the upper portion of the accelerator pedal 14, and a member 20 made of a round steel material is used as the yoke 15.
It is inserted so that relative movement is possible. When the accelerator pedal is depressed, the yoke 15 swings in the direction of arrow A and hits the stopper 36, and the member 20 moves together with the yoke 15.

As a result of the above configuration, the interlock between the accelerator pedal 14 and the cable 12 causes the second piston 26 to move.
And via the first piston 24 and can be blocked by the position of the third piston 28.

When the piston 28 is in the position shown, the piston 24 connected to the cable 12 and the piston 26 connected to the member 20 move toward each other inwardly of the bore 30. At this time, the cable 12 connected to the piston 24 has a resistance because it is connected to a throttle valve and the like, and the cable 12 is biased toward the neutral position, as is known per se. . Therefore, the piston 26 moves more inward than the piston 24, and the yoke 15 of the accelerator pedal and the stopper 36 of the member are positioned with the play S of the accelerator pedal 14 being separated.

When the accelerator pedal 14 is depressed in this state, the yoke 15 hits the stopper 36 and moves the stopper 36 to the right in the figure. Along with this movement, the piston 26 moves to the right, and the piston 24 is pulled by the negative pressure that tends to be generated in the working fluid 23 and moves to the right. In this way, normal accelerator operation is achieved. When the accelerator pedal 14 is depressed, the piston 26
Can reach the stopper 38.

When the door is opened or the parking brake is activated, the solenoid 16 is excited and the piston 28 moves downward together with the movable iron core 17 as shown by a phantom line. As a result, the two pistons 24, 26
The piston 28 moves toward the outside of the bore 30 by the amount of the working fluid removed, but the movement amount of the piston 26 is larger than the movement amount of the piston 24 for the same reason as described above. Therefore, on the one hand, the piston 24 strikes the stopper 40 and, on the other hand, the piston 26 hits the stopper 3.
If the bores of the bores 30 and 32 and the stroke of the movable iron core 17 are determined so as to hit the accelerator pedal 8, the accelerator pedal 1
Even if the user depresses 4, the cable 12 is not interlocked.

Accelerator interlock device 50 shown in FIG.
Is a cable 12 for increasing or decreasing the engine speed.
And a member 52 which is interposed between the accelerator pedal 14 for moving the cable 12 forward and backward and engages with the accelerator pedal, a spring 54, and a solenoid 56.

The member 52 is formed of a round steel material and has a base portion 58 connected to the cable 12 and an engaging portion 59 swingably connected to the base portion 58. The base 58 is guided by a guide 60 that covers the cable 12, and is movable in the axial direction. The engaging portion 59 has a stopper 61.

In the embodiment shown in FIG. 4, the base 58 has a box-shaped connecting portion 62 at its end, while the engaging portion 59 has a boss 64. A pin 66 that loosely penetrates the hole of the boss 64 is supported by the connecting portion 62, and the engaging portion 59 is swingable with respect to the base portion 58. It is preferable that the receiving portion 63 is provided on the connecting portion 62 and that the base portion 58 and the engaging portion 59 are positioned on a straight line when the engaging portion 59 hits the receiving portion 63.

When the engaging portion 59 of the member 52 and the base portion 58 are located on a straight line, the engaging portion 59 is engaged by the accelerator pedal 14
The engaging portion 59 disengages from the yoke 15 of the accelerator pedal when the engaging portion 59 swings upward as shown by a virtual line.

The spring 54 biases the engaging portion 59 of the member 52 toward the swing position where the engaging portion 59 is disengaged from the accelerator pedal 14.

Like the solenoid 16, the solenoid 56 is excited and demagnetized in response to opening / closing of the door or activation / deactivation of the parking brake. The movable iron core 57 is provided with means 68 for contacting the engaging portion 59 of the member. Prepare In the illustrated embodiment, the contact means 68 is a roller and the solenoid 56 is such that when demagnetized, the contact means 68 is in the lower position shown, and when energized it is in the upper position shown in phantom. It is set.

The interlock between the accelerator pedal 14 and the cable 12 is performed when the engaging portion 59 of the member 52 is engaged with the yoke 15 of the accelerator pedal. This is when the door is closed or when the parking brake is deactivated. When the accelerator pedal 14 is depressed, the member 52 moves forward and backward while being pressed by the rollers, and normal accelerator operation is achieved.

When the door is opened or the parking brake is activated, the contact means 68 is activated by the solenoid 56.
Is moved upward, and as the engaging portion 59 moves, the spring 54
Is swung upward by the action of. When the engaging portion 59 swings upward, the yoke 15 of the accelerator pedal does not engage with the engaging portion 59, so that the cable 12 is not interlocked even when the accelerator pedal 14 is depressed.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of an accelerator interlock device according to the present invention.

FIG. 2 is a side view showing a part of the accelerator pedal as seen in the direction 2-2 in FIG.

FIG. 3 is a sectional view of another embodiment of the accelerator interlock device according to the present invention.

4 is a cross-sectional view of a main part of a member that engages with an accelerator pedal provided in the accelerator interlock device shown in FIG.

[Explanation of symbols]

 10, 50 Accelerator interlock device 12 Cable 14 Accelerator pedal 16, 56 Solenoid 18 Cylinder device 20, 52 Member engaging with accelerator pedal 22 Cylinder 24, 26, 28 Piston 36, 61 Stopper 54 Spring

Claims (2)

[Claims] 1. An accelerator interlock device interposed between a cable for increasing / decreasing an engine speed and an accelerator pedal for advancing / retreating the cable, for opening / closing a door or activating / deactivating a parking brake. A solenoid that is energized and demagnetized in response, a cylinder that contains a working fluid, and a first movably arranged in the cylinder in a sealed state and coupled to the cable.
Piston, a second piston movably arranged in the cylinder in a sealed state, and a third piston movably arranged in the cylinder in a sealed state and coupled to a movable iron core of the solenoid. A cylinder device; and a member that engages with the accelerator pedal and that has a stopper and that is coupled to the second piston. The interlocking of the accelerator pedal and the cable is the first and the first. An accelerator interlock device, which is carried out via two pistons and can be blocked by said third piston. 2. An accelerator interlock device interposed between a cable for increasing / decreasing a rotational speed of an engine and an accelerator pedal for advancing / retreating the cable, wherein the base is connected to the cable, and the base is connected to the base. A member having an engaging portion movably coupled to the engaging portion, the engaging portion having a stopper and detachably engaging the accelerator pedal; A spring for biasing the engaging portion of the member, and a solenoid having a movable iron core for contacting the engaging portion of the member, which is excited and demagnetized in response to opening / closing of a door or activation / deactivation of a parking brake. And an interlock between the accelerator pedal and the cable is performed when an engaging portion of the member is engaged with the accelerator pedal. Location.