JPH1035441A - Emergency stop safety device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To stop a vehicle even when an accelerator pedal is pressed by mistake in a case of an emergency stop. SOLUTION: A brake lever 1, which is supported freely oscillationally around an upper end fulcrum shaft 11, and an accelerator lever 2, which is supported freely oscillationally around an intermediate fulcrum shaft 21, are arranged in parallel. When the accelerator lever 2 is pressed suddenly beyond a fixed pressing stroke, the brake lever 1 is pressed in via a passive rod 32 in an interlocking means 3 so as to actuate a brake, and according to a like with the brake lever 1, the accelerator lever 2 can be freely bent down as a fixing pin of a joint means 4 is pulled out from the intermediate part in the accelerator lever 2 by means of a wire cable 51 in an interlocking releasing means 5, and as a result, an action of the accelerator operating means 22 can be canceled.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operating device for a transport or industrial vehicle having a brake pedal and an accelerator pedal. The present invention relates to an emergency stop safety device for a vehicle that can safely perform an emergency stop.

[0002]

2. Description of the Related Art In a conventional vehicle operating device, a brake pedal for braking the vehicle is usually provided at the feet of a driver;
Accelerator pedals for controlling the number of revolutions of the engine are arranged independently on the right side. And
The brake lever to which the brake pedal is attached is supported swingably up and down with its upper end as a fulcrum, and is connected to a rod of a hydraulic cylinder for braking below the fulcrum. The accelerator lever to which the accelerator pedal is attached is supported so that it can swing up and down around the fulcrum in the middle,
An accelerator operation wire is connected to the upper end.

[0003]

In the above-mentioned conventional configuration, if a sudden pedestrian jumps out or a path obstruction occurs during driving of the vehicle, usually a sudden brake is applied, but this is an instantaneous judgment. Upset and accidentally depressing the accelerator pedal too quickly, the car may suddenly accelerate and cause a catastrophic accident. No conventional operating device has been found that can prevent the occurrence of an accident due to such an erroneous operation in an emergency.

[0004] The invention of claim 1 of the present invention solves the above-mentioned problems, and even if the accelerator pedal is depressed due to a malfunction during an emergency stop, the vehicle can be stopped suddenly and a catastrophic accident is prevented beforehand. It is an object of the present invention to provide an emergency stop safety device for a vehicle that can perform the operation.

[0005]

According to a first aspect of the present invention, there is provided a foot pedal which is supported so as to be swingable about an upper end fulcrum shaft and connected to a brake operating means. In an emergency stop safety device in which a brake lever of the type and a foot-operated accelerator lever which is swingably supported about an intermediate fulcrum shaft and whose upper end is connected to an accelerator operating means are arranged side by side, the accelerator lever is Interlocking means that presses the brake lever in conjunction with the accelerator lever when a certain depressing stroke is exceeded, and can be bent and fixed around the same or parallel axis as the middle fulcrum or the middle fulcrum above the middle fulcrum of the accelerator lever And a lever connection for releasing the fixed connection of the accelerator lever by operating the coupling means when the brake lever is depressed by a certain amount or more. It is obtained by and a release means.

In the above construction, when the accelerator lever is depressed beyond a certain stroke, the brake lever is pushed through the interlocking means, and the coupling means is operated by the interlocking releasing means to release the fixation of the accelerator lever. Release the operation of the operation means. Therefore, even if the accelerator lever is accidentally depressed during an emergency stop, the accelerator operating means is not operated, and the brake lever is pushed by the interlocking means to operate the brake. And increase safety.

According to a second aspect of the present invention, the interlocking means has a passive member protruding from the brake lever side with a constant depressing stroke forward in the depressing direction of the accelerator lever.

According to the above configuration, the accelerator lever and the brake lever can be reliably linked with a simple configuration, maintenance is easy, and no malfunction occurs. According to a third aspect of the present invention, the coupling means having the above-described structure is characterized in that the rotating shaft is connected to one of a passive portion side and a driving portion side of an accelerator lever, and the rotating shaft is connected to the other of the accelerator lever A bearing member for rotatably holding the body, and a fixing pin which is attached to the bearing member so as to be able to move back and forth, and a distal end portion of which can be fitted into a locking hole formed in the rotating shaft body. A biasing member for biasing the fixing pin toward the engagement hole,
One end is connected to the brake lever, and the other end is constituted by a wire cable connected to a fixing pin of the joint means.

In the above construction, the accelerator lever can be freely bent and fixed by the joint means, and the depression of the accelerator lever is canceled and the accelerator operation means is released only by moving the fixing pin in and out by the wire cable. Generation can be prevented beforehand. Therefore, the entire structure can be constituted by a visible mechanical structure, so that maintenance is easy and there is no malfunction, the structure can be manufactured simply and inexpensively, and it can be easily added to an operating device of an existing vehicle.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Here, an embodiment of the emergency stop safety device for a vehicle according to the present invention will be described with reference to FIGS.

In FIG. 1 to FIG. 3, reference numeral 1 denotes a foot-operated brake lever whose front end is swingably supported by an upper end fulcrum shaft 11 at the front of a floor F of a driver's seat. The piston rod 13a of the brake operation cylinder 13 is connected via a brake cylinder, and a brake pedal 14 is attached to the lower end. Reference numeral 2 denotes an accelerator lever arranged side by side on the right side of the brake lever 2, an intermediate portion of which is swingably supported by an intermediate fulcrum shaft 21, which is connected to an upper end portion of the accelerator lever 22 via an operating wire 23 via an operating wire 23, An accelerator pedal 24 is attached to the section.

The accelerator lever 2 is provided with interlocking means 3 for pushing the brake lever 1 when the accelerator lever 2 exceeds a certain depression stroke S1. In the vicinity of the upper part of the fulcrum shaft 21 of the accelerator lever 2, a joint means 4 that can be rotatably connected and fixed around an axis parallel to the fulcrum shaft 21.
Is provided. Further, there is provided an interlock release means 5 for operating the joint means 4 to release the connection and fixation of the accelerator lever 2 when the brake lever 1 is pushed in by a certain amount or more.

In the interlocking means 3, a passive rod 32, which is a passive member, protrudes from a mounting plate 31, which is vertically provided on the right side of the brake pedal 14, with a predetermined depressing stroke S1 forward in the depressing direction of the accelerator lever 2. Has been established.

The accelerator lever 2 is composed of a passive portion 2a supported by an intermediate fulcrum shaft 21 at a lower portion of the joint means 4 and a drive portion 2b at an upper portion of the joint means 4. As shown in FIGS. 4 and 5, the joint means 4 rotatably supports the bearing member 41 via a center shaft 42a parallel to the intermediate fulcrum shaft 21 and a bearing member 41 fixed to the passive portion 2a. And a rotating shaft 42 having a somewhat larger diameter.
The drive arm 2b is fixed to the rotating shaft 42, and a locking hole 43 in the radial direction is formed at a predetermined position on the outer peripheral portion. A guide hole 44 is formed in the bearing member 41 at a position opposing the locking hole 43, and a fixing pin 4 that can be fitted in the locking hole 43 in the guide hole 44.
Reference numeral 5 is provided so as to be able to move in and out.

Further, the interlock release means 5 is disposed between the brake pedal 14 side of the brake lever 1 and the joint means 4, and when the brake lever 1 is driven by a predetermined amount, the fixing pin 45 is engaged with the locking hole 43. Then, the passive arm 2b is returned to the original non-operating position by releasing the fixing of the passive portion 2b by the elastic force built into the accelerator operating means 22.

That is, the interlock release means 5 is composed of a single wire cable 51 having a cable 51b slidably incorporated in a wire cover 51a. 5
2B is provided. The wire support members 52A, 52
2B is formed so as to be freely adjustable in height via a long hole 52a and a fixing bolt 52b, and a cover holder 53 for holding the end of the wire cover 51a is attached to the upper end of the wire support member 52B. The end of the cable 51b is connected and fixed to the brake lever 1 via the mounting pin 54.

A cover holder 57 for holding the end of the wire cover 51a is attached to the upper part of the bearing member 41, and the cable 51b passes through a through-hole 55a formed in the receiving plate 55 to fix the fixing pin 45. At the base end. A coil spring 56, which is an urging member for urging the fixing pin 45 toward the distal end to be fitted into the locking hole 43, is fitted between the fixing pin 45 and the receiving plate 55 so as to be fitted over the cable 51b. .

In the above configuration, during normal operation, the accelerator lever 2 is operated within the range of the depression stroke S1, and the accelerator operation means 22 is operated via the operation wire 23 to control the engine speed. The brake lever 1 is also operated within the range of the normal depression stroke T. Thus, the operation of the brake lever 1 activates the fixing pin 45 via the interlock release means 5, but the normal operation does not activate the accelerator pedal 24 and the brake pedal 14 at the same time. When returned to the original initial position, the fixing pin 45 is
There is no problem because it is returned to the locking hole 43 by the action of 6.

In an emergency, when the driver excessively depresses the accelerator pedal 24, the accelerator lever 2 comes into contact with the passive rod 32 when the depression stroke S1 is exceeded, and the brake lever 1 is pushed together with the accelerator lever 2. . As a result, the brake operation cylinder 13 is driven, and the vehicle starts to brake. Further, when the brake lever 1 is pivoted downward in the range of the control stroke S2, the cable 51b of the wire cable 51 is pulled through the mounting pin 54, and the fixing pin 45 of the joint means 4 is moved to the locking hole 43. Extracted from Thereby, the driving part 2b of the accelerator lever 2 becomes rotatable,
The drive unit 2b is returned to the original position by the urging means (not shown) built in the accelerator operating means 22, and the operation of the accelerator operating means 22 is stopped. At the same time, when the accelerator pedal 24 is further depressed, the passive rod 32 and the brake lever 1 are pushed in by the operation stroke T, the brake is strongly operated, and the vehicle is suddenly stopped. As a result, even if the driver steps on the accelerator pedal 24 by mistake, the vehicle is suddenly stopped, and a serious accident is prevented from occurring. When the depression of the brake pedal 24 is released, the accelerator lever 2 is returned to the original position by return biasing means (not shown) such as a spring provided on the intermediate fulcrum shaft 21, and the fixing pin 45 is moved to the coil spring 56. By the action of the above, it is fitted into the locking hole 43 and returned to the normal operation state.

According to the above embodiment, the accelerator lever 2 is stepped over the stroke S1 due to erroneous operation during an emergency stop.
, The brake lever 1 is pushed through the passive rod 32 which is the interlocking means 3,
The fixing pin 45 of the coupling means 4 is pulled out in conjunction with the brake lever 1 by the wire cable 5 which is the interlocking releasing means 5, whereby the fixing of the coupling means 4 is released, and the accelerator lever 2 becomes freely bendable and the accelerator is operated. Means 2
2 can be canceled. Therefore,
In the event of an emergency stop, even if the accelerator pedal 24 is depressed strongly by mistake, the accelerator operating means 22 is canceled, and the brake lever 1 is pushed by the passive rod 22 to operate the brake.
The vehicle can be brought to an emergency stop, and safety can be greatly improved.

Further, since the interlocking means 3 has a simple configuration using the passive rod 32, the accelerator lever 2 and the brake lever 1 can be reliably interlocked, and maintenance and adjustment can be easily performed.

Further, a bearing member 41 is attached to the accelerator lever 2.
The brake lever 1 is connected to the brake lever 1 by the wire cable 51 with the joint means 4 having the rotating shaft 42
In conjunction with this, the fixing pin 45 is pulled out with a fixed pushing amount to release the connection of the joint means 4 and the accelerator lever 2 can be bent so that the depression of the accelerator pedal 24 can be canceled, and maintenance is easy. There are few malfunctions, the structure is simple and it can be manufactured at low cost, and it can be easily added to the operating device of the existing vehicle.

In the above-described embodiment, the joint means 4 is provided near the intermediate fulcrum shaft 21, but as shown in FIG.
It can also be interposed on the intermediate fulcrum shaft 21. This can be easily implemented by fixing the intermediate fulcrum shaft to the bearing member 41, and the same effects as in the above embodiment can be obtained.

In each of the above-described embodiments, the bearing member 41 is provided on the passive portion 2a side of the accelerator lever 2 and the driving portion 2b is provided.
The rotation shafts 42 are fixed to the sides, however, the rotation shafts 42 may be fixed to the passive unit 2a side, and the bearing members 41 may be fixed to the drive unit 2b side.

[0025]

As described above, according to the first aspect of the present invention, when the accelerator lever is depressed beyond a predetermined stroke, the brake lever is pushed through the interlocking means, and the coupling is released by the interlocking releasing means. Activating the means releases the fixation of the accelerator lever and releases the operation of the accelerator operating means. Therefore, even if the accelerator lever is accidentally depressed during an emergency stop, the accelerator operating means is not operated, and the brake lever is pushed by the interlocking means to operate the brake. And increase safety.

According to the second aspect of the present invention, the accelerator lever and the brake lever can be reliably linked with a simple configuration, so that maintenance is easy and no malfunction occurs.

According to the third aspect of the present invention, the accelerator lever can be bent and fixed by the joint means, and the accelerator pin can be depressed and retracted by the wire cable to cancel the depression of the accelerator lever and operate the accelerator operating means. It is possible to prevent the occurrence of a serious accident beforehand. Therefore, the entire structure can be constituted by a visible mechanical structure, so that maintenance is easy and there is no malfunction, the structure can be manufactured simply and inexpensively, and it can be easily added to an operating device of an existing vehicle.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a vehicle emergency stop safety device according to the present invention.

FIG. 2 is a side view of the emergency stop safety device.

FIG. 3 is a front view of the emergency stop safety device.

FIG. 4 is a side sectional view showing coupling means of the emergency stop safety device.

FIG. 5 is a side sectional view for explaining the operation of the coupling means of the emergency stop safety device.

FIG. 6 is a perspective view showing a modification of the coupling means of the emergency stop safety device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Brake lever 2 Accelerator lever 2a Passive part 2b Drive part 3 Interlocking means 4 Coupling means 5 Interlocking releasing means 11 Upper end fulcrum shaft 13 Brake operating cylinder 14 Brake pedal 21 Intermediate fulcrum pin 22 Accelerator operating means 24 Accelerator 32 Passive rod 41 Bearing member 42 rotating shaft 43 locking hole 44 guide hole 45 fixing pin 51 wire cable 51b cable 56 coil spring

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kazuhiro Sanno 1 Ariake, Azai, Nagasu-cho, Tamana-gun, Kumamoto Nishi Inside Elephant Ariake Design Co., Ltd. Elephant Ariake Design Co., Ltd.

Claims (3)

[Claims] 1. A foot-operated brake lever which is swingably supported about an upper fulcrum shaft and connected to a brake operating means, and which is slidably supported about an intermediate fulcrum shaft and an upper end portion thereof. An emergency stop safety device in which an accelerator operating means is connected to a foot-operated accelerator lever in parallel, wherein when the accelerator lever exceeds a certain depressing stroke, an interlocking means for pushing a brake lever in conjunction with the accelerator lever, Joint means that can be bent and fixed around the same or parallel axis as the middle fulcrum or the middle fulcrum above the middle fulcrum of the accelerator lever, and when the brake lever is pushed over a certain amount, the joint means is operated. An emergency stop safety device for a vehicle, comprising: interlock release means for releasing connection and fixation of an accelerator lever. 2. The emergency stop safety of a vehicle according to claim 1, wherein the interlocking means comprises a passive member protruding from the brake lever side at a predetermined depressing stroke forward in the depressing direction of the accelerator lever. apparatus. 3. The joint means comprises: a rotating shaft connected to one of a passive portion side and a driving portion side of an accelerator lever; and a connecting shaft connected to the other of the accelerator lever for rotatably holding the rotating shaft. And a fixing pin which is attached to the bearing member so as to be able to move back and forth, and a tip end of which can be fitted into a locking hole formed in the rotating shaft. 3. A biasing member for biasing toward a hole, and a wire cable having one end connected to a brake lever and the other end connected to a fixing pin of a joint means. The emergency stop safety device for a vehicle according to the above.