JPS6347541Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a car driving system for physically disabled people who have lost the function of their legs and can drive by operating the brake pedal and accelerator pedal using only their own hand power. The present invention relates to a device, and particularly to a constant speed traveling device for reducing the burden of driving operations.

A constant speed traveling device that maintains the amount of depression of the accelerator pedal at a constant level has already been proposed, but in the conventional device, a small rotary lever is attached to the grip of the operating lever, and this lever and the accelerator pedal are connected by a cable or Connected with wires, etc. In order to stop this accelerator operating lever at a desired position, an electromagnetic adsorption plate is installed inside the casing at the center of rotation of the lever, so that frictional resistance against the rotation of the lever is directly generated by the adsorption force of the solenoid. ing.

However, in order to generate enough force to stop the accelerator pedal, the solenoid requires a large suction force, but the size of the lever and casing installed in the grip of the operating lever is limited due to installation space. In addition, the solenoid has the drawback that it cannot withstand long-term use, and its suction force decreases, resulting in deterioration of function.

In addition, the electric circuit of the conventional device is such that a limit switch is attached to the rotating arm to create a circuit that turns on when the rotating arm moves from the neutral position toward the accelerator and turns off when the arm moves toward the brake, and in series with this circuit on the lever side. It is made by connecting the ON-OFF circuit of the switch. However, with this circuit, when the brake is applied while driving at a constant speed, constant speed driving is canceled, but when the accelerator is applied again, the lever side switch remains ON, so the constant speed driving state is automatically returned. There was a risk of confusion in driving operations.

Constant-speed traveling devices are important for reducing the burden of driving, especially for physically disabled people. The present invention has been made in view of the above-mentioned points, and the purpose of the present invention is to provide a constant speed traveling device that realizes safe and reliable driving operations and has excellent durability.

In the constant speed traveling device of the present invention, one end of the operating lever is pivoted to a bracket fixed to the support tube of the steering wheel shaft, so that the operating lever can be rotated forward and backward of the automobile, and the operating lever can be rotated in the direction of rotation. A driving device for operating a brake pedal and an accelerator pedal, respectively, in which one end of a brake operating rod is pivotally connected to the vicinity of a pivot point of the operating lever via a brake rotating arm, and the other end of the brake operating rod is The end of the brake rod is connected to the brake pedal, the brake pivot arm is pivotally connected to the bracket near the center thereof, and the brake rod is provided with a cylindrical insertion portion in the middle portion thereof, so that the rod can be inserted into the insertion portion. One end of an accelerator operating rod is connected to one end of an accelerator rotating arm pivotally connected to the bracket, the other end of the rod is connected to an accelerator pedal, and the accelerator operating rod The other end of the rotating arm is provided with a vehicle driving device for a physically handicapped person, which is positioned so that it contacts the operating lever through a roller and rotates to follow the operating lever only when the operating lever is rotated rearward.

The device of the present invention further includes a generally circular pan-shaped rotating drum fixed to the lever holding plate so as to be concentric with the rotational fulcrum of the operating lever; a pair of arc-shaped expansion shoes that face each other and are capable of frictional contact with the inner wall; a cam for expanding the expansion shoes; a solenoid having a spool for rotating the cam; and a constant-speed traveling device attached to the operating lever. It is characterized by comprising a switch and its self-holding circuit.

According to the driving device of the present invention, safety is improved because there is no risk of operating the brake and accelerator at the same time, operation is reliable because no wires or cables are used, and there are no obstacles near the driver's feet. This provides the excellent advantage of not interfering with the driving of a normally functioning person, and in addition, sufficient space for the passenger seat can be secured.

In particular, the cruise control device of this invention has only a switch attached to the operating lever, and the mechanical operating parts such as the rotating drum, friction shoe, and solenoid are moved to the bracket side, resulting in a device with sufficient stopping power and durability. The solenoid's attraction force is increased and transmitted by the cooperative action of the drum and shoe, making it possible to make the solenoid itself smaller. Also, since the switch is equipped with a self-holding circuit, once it is turned OFF, the cruise control will not operate unless the switch is turned ON again, eliminating confusion during operation.

Furthermore, according to a preferred embodiment of the present invention, an accelerator lock device can be provided to prevent unintentional sudden acceleration, making driving operations easier and safer.

The present invention will be described in more detail below with reference to preferred embodiments shown in the drawings. It should be noted that although the illustrated device is illustrative of a vehicle in which the steering wheel 8 is on the right side of the center line of the vehicle body, the present invention is also applicable to vehicles in which the steering wheel is on the left side.

FIG. 1 shows the neutral position of the device of the present invention, in which a bracket 12 is fixed via a stay 13 to a support tube 11 housing a handlebar shaft 9, and an operating lever 10 for manually operating the brake and accelerator is attached to the support tube 11 that houses the handlebar shaft 9. Holding plates 10a and 10b are welded to the upper and lower sides, and the bracket 12 is rotatably connected to the bracket 12 at a pin 71 via these holding plates. The operating lever 10 rotates forward (in the B direction) and backward (in the A direction) of the automobile, respectively, and presses the brake pedal 1.
5. Operate the accelerator pedal 17.

One end of the brake operating rod 14 is connected to the outer end 22 of the rotating arm 20, and the other end is connected to the brake pedal 15. Rotating arm 20
is pivotally attached to the bracket 12 at a position 21 near the center thereof, the inner end 23 of the rotating arm 20 is connected to one end of a link 24, and the other end of the link 24 is connected to the operating lever holding plate 10a at a position of a pin 25. ,10b
(Figure 2). As mentioned above, the holding plates 10a and 10b rotate around the pin 71, so when the grip 90 of the operating lever 10 is moved in the direction B, the force is applied to the link 24 and the rotating arm 20.
2, the outer end 22 of the rotating arm moves forward (in the direction B in FIG. 2). Conversely, when the handle 90 of the operating lever is moved in the direction A, the outer end 22 of the rotating arm moves rearward (direction A in FIG. 2).

However, as shown in FIG. 1, a cylindrical insertion portion 28 is provided in the middle portion of the brake operating rod 14, and the rod 14 is separated at the insertion portion 28 and connected to the rod 14 so as to be able to be brought into contact with each other in an inductive manner. Therefore, when the rod 14 moves forward in conjunction with the rotating arm 20, the detached portion of the rod comes into contact and presses the brake pedal 15 in the direction B, but the rod 1
When 4 moves rearward, the disconnection part of the rod separates and the connection with the brake pedal is released, resulting in a free state. Thus, the brake will be applied only when the operating lever is moved in direction B.

One end of the accelerator operating rod 16 is connected to the outer end of the rotating arm 30 via a universal joint, for example a ball joint 32, and the other end is similarly connected to the accelerator pedal 1 via a universal joint 32. There is. The rotating arm 30 is pivotally attached to the bracket 12 at a pin 31 (FIG. 2), and the inner end of the arm 30 can come into contact with the lever holding plates 10a and 10b via a roller 84 and a pin 83 passing through it. (Figures 2 and 4). As mentioned above, the holding plates 10a and 10b rotate around the pin 71, so when the handle 90 of the operating lever is moved in the direction A, the roller 84 comes into contact with the inner end of the rotating arm 30, and the outer end It moves toward the rear (direction A in Figure 2). In conjunction with this, the rod 16 moves rearward (direction A in FIG. 1) and the accelerator pedal 17 is depressed.
On the other hand, when the handle 90 of the operating lever is moved in the direction B, the roller 84 separates from the inner end of the rotating arm 30, so that the connection with the accelerator pedal is released and the roller 84 becomes free. In this way, the accelerator is activated only when the operating lever is moved in the A direction.

As can be understood from FIGS. 1 and 2, in the device of the present invention, the brake pedal 15 and the accelerator pedal 1 are
7 can be stepped on individually, so
Normally functioning people can drive using normal pedal operations.

Next, as an embodiment of the present invention, a constant speed traveling device will be described in which the operating lever 10 is stopped at a desired position on the accelerator activation side to keep the traveling speed of the vehicle constant.

In this constant speed traveling device, a lever holding plate 10 is arranged concentrically with a rotation fulcrum 71 of an operating lever 10.
A generally circular pot-shaped rotating drum 60 fixed to a
, a pair of arcuate expanding shoes 70 that are housed in the rotating drum and can come into frictional contact with the inner wall of the rotating drum, a cam 78 for expanding the expanding shoes, and a cam 78 that rotates the cam 78. Spool 64 to move
A solenoid (electromagnetic switch) 35 is provided. The solenoid 35 of the constant speed travel device is a constant speed travel switch 9 installed near the grip of the operating lever.
It is energized by turning on 1. The ON state is maintained by the holding circuit 85.

For constant speed traveling devices, move the operating lever to the accelerator side (first
so that it only works when you move it in the direction A in the figure).
A limit switch 38 is installed between the brake rotating arm 20 and the bracket 12, and the arm 20
The circuit of the constant speed travel switch 91 is cut off immediately before the vehicle returns to the neutral position from the direction of arrow A in FIG.

In addition to the rotating drum-type constant speed traveling device, if a wire-operated auxiliary accelerator mechanism 40 is attached to the accelerator rotating arm 30, even when the operating lever is fixed, it can still be used near the grip 90 of the operating lever. The vehicle can be accelerated or decelerated by operating an auxiliary accelerator lever 93 attached to the vehicle with a finger. When the vehicle is driving on an extremely rough road or a road with sharp curves, this control is used to prevent the driver from suddenly accelerating unintentionally due to the impact or centrifugal force applied to the driver. It is suitable for cases where the movement of the lever is stopped by a rotating drum and the accelerator is operated with a finger.

The auxiliary accelerator mechanism 40 includes a clamp 4 attached to the accelerator rotating arm 30 as shown in FIG.
1. Return spring 42, wire 43 and bracket 1
It consists of a plate 44 attached to the wire 43
is connected to an auxiliary accelerator lever 93 disposed along the operating lever 10.

As shown in FIGS. 2 and 4, a pair of expansion shoes 70, their connecting pins 73, and return springs 72 are housed in the rotating drum 60 of the constant speed traveling device.
The cam 78 is made in the shape of a pin with an oval cross section fixed to one end of the support plate 63, and has a pair of expansion shoes 70.
It is sandwiched between the free ends of. The other end of the support plate 63 is connected to the spool 64 of the solenoid 35 via a pin 65.
is connected to. The spool 64 moves in conjunction with the operation of the electromagnetic adsorption plate 36 by the electromagnetic action of the solenoid, and moves from the neutral position N to the constant speed travel operating position C shown in FIG. If the solenoid is not an automatic return type, install a return spring 69 (Fig. 2).

As shown in FIG. 4, the bracket 12 is attached to the upper plate 18.
The connecting pin 73 of the expansion shoe 70 is fixed to the upper plate 18 with bolts via a plate 61.

As shown in FIG. 5, the spool 64 is at the neutral position N.
When the shoe moves from 1 to the operating position C, the distance between the free ends of the expansion shoe 70 increases from S to L due to the action of the cam 78, thereby pushing the expansion shoe 70 wider and disengaging the friction lining 79 (FIGS. 4 and 6). is pressed against the inner surface of the rotating drum 60. Thus, the action of the solenoid 35 substantially prevents rotation of the operating lever 10.

FIG. 7 shows an electrical circuit diagram of the constant speed traveling device, which is composed of the solenoid 35, limit switch 38, constant speed traveling switch 91 and self-holding circuit 85 as described above. As described above, when the operating lever 10 is moved toward the accelerator, the limit switch 38 is turned on. At this time, when the switch 91 is turned on, current flows through the solenoid 35 with the self-holding circuit 85 in operation, moving the spool 64 and stopping the operating lever. Push the operating lever back toward the brake side, and the limit switch 38 is turned off at a position slightly before neutral.
is turned OFF, the self-holding circuit 85 is cut off, and constant speed running is canceled. At this time, even if the operating lever is returned to the accelerator side, the vehicle will not be able to run at a constant speed unless the switch 91 is turned on again, so there will be no confusion in driving operations.

Next, as a more preferred embodiment of the present invention, an accelerator lock device for preventing sudden acceleration will be described.

This accelerator lock device includes an acceleration/deceleration detection mechanism (not shown) installed at a suitable location in the vehicle, a gear body 52 and a mounting board 58 for the operating lever as shown in FIGS. Only gear body 5
The claw arms 53 are connected to each other via the pin 57 and the link 54 that pivotally connects the center of the claw arms 53 to the upper plate 18 of the bracket 12.
A solenoid (electromagnetic switch) 56 having a spool 55 that rotates the spool 55 is provided. If the solenoid is not an automatic return type, install a return spring 68. Accelerator lock device solenoid 56
With the accelerator lock switch 92 installed near the handle of the operating lever turned on, the limit switch (not shown) is turned on the moment the acceleration/deceleration detection mechanism detects abnormal sudden acceleration or deceleration of the vehicle. energized, the spool 55 moves from the neutral position N to the lock operating position R shown in the second figure. As a result, the claw arm 53 rotates, and the teeth of the gear body 52, which has many teeth formed along an arc centered on the fulcrum 71, engage with the claw, thereby locking the operating lever 10.

In this way, it is possible to prevent unexpected acceleration due to the driver's unstable posture due to centrifugal force or the like during sharp turns.

As explained in detail above, the device of the present invention realizes safe and reliable driving operations, and provides a driving device for physically disabled people that does not pose any problem for normally functioning people. Its value is remarkable.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view showing the entire operating device according to the present invention, Fig. 2 is an enlarged plan view of the vicinity of the bracket, Fig. 3 is a side sectional view taken along the - line in Fig. 2,
Figure 4 is a side sectional view taken along the - line in Figure 2;
The figure is a partial plan view showing the operation of the cam, FIG. 6 is a side sectional view taken along the - line in FIG. 5, and FIG. 7 is an electric circuit diagram of the constant speed traveling device. 9...Handle shaft, 10...Operation lever, 11
... Support cylinder, 12 ... Bracket, 14 ... Brake operation rod, 15 ... Brake pedal, 1
6...Accelerator operation rod, 17...Accelerator pedal, 20...Brake rotation arm, 28...
Insertion part, 30... Accelerator rotation arm, 35...
Solenoid, 40... Auxiliary accelerator, 56... Solenoid, 60... Rotating drum, 64... Spool, 70... Expansion shoe, 78... Cam, 85...
...Holding circuit, 91...Constant speed running switch.

Claims (1)

[Claim for Utility Model Registration] One end of the operating lever is pivoted to a bracket fixed to the support tube of the steering wheel shaft, so that the operating lever can be rotated forward and backward of the automobile, and the lever is pivoted in the direction of rotation. Each of the operating devices includes an operating device for operating a brake pedal and an accelerator pedal. The other end of the rod is connected to a brake pedal, the brake rotating arm is pivotally connected to the bracket near its center, and a cylindrical insertion portion is provided in the middle of the brake rod to allow the rod to be inserted. one end of an accelerator operating rod is connected to one end of an accelerator rotating arm pivotally connected to the bracket, and the other end of the rod is connected to an accelerator pedal. ,
The other end of the accelerator rotating arm is positioned so that it contacts and rotates following the operating lever via a roller only when the operating lever is rotated rearward; a generally circular pan-shaped rotary drum fixed to the lever holding plate concentrically with the rotary drum, and a pair of opposing circular arc-shaped rotary drums housed within the rotary drum and capable of frictionally contacting the inner wall of the rotary drum. It is characterized by comprising an expansion shoe, a cam for expanding the expansion shoe, a solenoid having a spool for rotating the cam, a constant speed travel switch attached to the operating lever, and a self-holding circuit thereof. A constant speed running device in a car driving device for physically disabled people.