JPH0327896Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention enables braking and release of braking by remotely controlling the brake pedals of various types of vehicles, such as automobiles such as passenger cars and trucks, forklifts, and wheeled construction machines, by remote control outside the vehicle. In this system, a reduction gear connected to an electric motor is installed in the main body of the device, which can be freely adjusted in distance with respect to the brake pedal of the traveling vehicle, with the driver's seat being the reaction force point, and the electric motor is driven by remote control outside the vehicle. The present invention relates to a brake operating device for applying and releasing the brake by controlling the brake pedal.

The above-mentioned brake operating device was developed to allow one person to bleed air from the piping system of a hydraulic brake.

In other words, in conventional air bleeding work, a vehicle with one worker on board is set up in advance so that the bleeder valve (valve for air bleeding) of the wheel cylinder from which the air is to be removed can be easily operated. The operator had been raised to the appropriate working height using a lift, and while the operator was repeatedly pressing the brake pedal, another operator was operating the bleeder valve of the wheel cylinder. This was necessary.

Therefore, in order to omit the pedal operation by an operator inside the vehicle, a brake operating device was developed in which the operator operating the bleeder valve mechanically operates the brake pedal by remote control.

Conventionally developed brake operating devices use an air cylinder connected to a compressor via a flexible hose to operate the brake pedal by depressing the brake pedal, but this requires a special compressor as a drive source and produces noise. Moreover, since the compressor is driven by a power source and the cylinder is driven using it as a driving source, it is inefficient, and furthermore, both the cylinder and the compressor are expensive.
The cylinder weight is large, making the brake operating device heavy, and in addition, a considerable length of flexible hose is required, which makes it difficult to store the operating device, and there are overall handling problems. However, this method had drawbacks such as the flexible hose dancing every time the cylinder reciprocated.

The present invention was developed in view of the above circumstances, and it goes without saying that it eliminates all of the above-mentioned drawbacks by having a drive configuration that is completely different from those developed to date. The purpose is to enable smooth operation of the operating mechanism even though it uses a mechanical operating mechanism.

Embodiments of the present invention will be described below with reference to the drawings.

Figure 1 shows a brake operating device A according to the present invention.
The above-mentioned brake operating device A is shown in a usage state in which the above-mentioned brake operating device A is set on a traveling vehicle (passenger car) C which has been raised to an appropriate working height by a lift B.
Show details.

In the figure, 1 is the main body of the device, which includes a case 4 having a removably attached top cover 3 with a handle 2;
It consists of a front strut 5 bolted to the front side of the case 4, and a rear strut 7 pivotally attached to the rear side of the case 4 via a pin 6 so as to be rotatable around a horizontal axis.

The rear support 7 is formed by drilling a hole a in a direction perpendicular to the axis of the pin 6 in a pair of blocks 8, 8 that are rotatable around the pin 6, and by bending a pipe. A post 9, which is L-shaped in side view, is inserted into the holes a, a, and a thumbscrew 10 for fixing the post 9 to the blocks 8, 8 so as to be able to change its position is screwed into the blocks 8, 8. At the same time,
Stoppers 11 and 12 that restrain the support column 9 in a stored state X in a standing position and in a use state Y in a horizontal position.
The stopper 11 that attaches to the case 4 and restrains it in the usage state Y is attached to the other stopper 12.
A bolt b is screwed onto a bracket that also serves as a bracket, and a stand bolt c, which can be vertically changed and fixed in the usage state Y, is attached to the support 9.
When the pillar 9 is switched to the use state Y, the stand bolt c and the front pillar 5 are brought into contact with the vehicle floor surface F, and the rear end of the pillar 9 is operated. By screwing at least one of the bolts b and c while in contact with the front surface of the seat portion 13, the height of the device body 1 relative to the vehicle floor surface F is adjusted to the contact point P of the front strut 5. By changing the relative back and forth position of the support column 9 with respect to the case 4, the device main body 1 can be adjusted in the distance direction with respect to the brake pedal 14 using the control seat 13 as a reaction force point. It's becoming like that.

Next, reference numerals 15 and 16 denote telescopic members that are fitted to each other so as to be slidable relative to each other in the axial direction, and are constructed across the front and rear plates 4a, 4b of the case 4, and one of the telescopic members (guide body) 15 is fixed to the rear plate 4b, and the other telescopic member (operating member) 16 is made to protrude forward from the bearing 17 of the front plate 4a, so that this telescopic member 16 can be used as an operating member for the brake pedal 14. , the telescopic member 16 is slidably supported by a bearing 17 and the one telescopic member 15. Incidentally, a pedal pressing member 18 is fixedly attached to the tip of the other telescopic member 16.

Reference numeral 19 denotes an operating member (pushing member) that is slidably fitted onto the other elastic member 16; 20 is a seat (receiving member) that is fitted and fixed to the intermediate portion of the other elastic member 16; The catch seat 20 and the operating member 1
9, a compression type coil spring 21 as an example of a shock absorber is interposed. 22 is a retaining ring.

Next, reference numeral 23 denotes a speed reducer to which an electric motor 24 is interlocked, and its output rotating shaft 25 is passed through the case 4 and is attached to the bottom plate 4c of the case 4.

Reference numeral 26 denotes a motion converting member which converts the rotational motion of the output rotating shaft 25 into linear motion and converts the rotational motion of the output rotation shaft 25 into linear motion.
A crank arm 27 is fixed to the rotating shaft 25, and a piston rod 28 is pivotally connected between the free end of the arm 27 and the operating member 19. 29 is the telescopic member 1
A guide rail 30 is provided on the case bottom plate 4c along the guide rails 5 and 16, and 30 is a pin for pivoting the rod 28, and a roller 31 that fits into the rail 29 is provided at the tip of the guide rail.

Reference numeral 32 denotes a control box containing control equipment for controlling the rotation of the electric motor 24 by wireless remote control, and is designed to be attached to the waist of the worker with a belt. This box 32 is provided with a switch d for starting the motor 24, a knob e for a timer for changing and setting the rotation time of the motor 24, and other equipment necessary for wireless operation. is provided with a limit switch S for detecting that the telescoping member 16 has reached the end of its contraction stroke;
The switch S detects the end of the stroke of the telescopic member 16 after the time set by the timer has elapsed and drives the motor 24, and is interlocked until the set time elapses.

The piston rod 28 has a turnbuckle structure so that the stroke of the operating member 19 can be changed.

Next, the work to bleed air from the brake piping system will be described. First, the brake operating device A is brought into the vehicle, the rear support 7 is switched to the operating state Y, and it is placed on the floor surface F of the vehicle body. Then, by changing the position of the support 9, the rear end of the support 9 is brought into contact with the seat 13, and the pressing member 18 is moved to the pedal 1.
4, and by screwing at least one of the bolts b and c, the sliding direction of the telescopic member 16 is made to follow the operating direction of the pedal 14 as much as possible, and then by the lift B. Vehicle C is raised to an appropriate working height.

On the other hand, a vinyl hose or the like is connected to the bleeder valve of the wheel cylinder, the other end of the hose is placed inside the container, and then the motor 24 is driven for a set period of time by wireless remote control.

The crank arm 27 by this motor 24
One rotation of the operating member 19 causes one reciprocating movement of the operating member 19, and in conjunction with this, the telescopic member 16 makes one reciprocating movement via the buffer 21. Along with this, the brake pedal 14 is depressed and released once. A braking operation is performed, and this operation is repeated over a period of time set by a timer.
The bleeder valve is then closed when the brake fluid from the master cylinder is sufficiently supplied into the wheel cylinder (when no air bubbles are seen in the fluid spewing out from the bleeder valve). Work is performed sequentially starting with the wheel cylinder furthest from the master cylinder.

In addition, if air bleeding is not completed within the set time, it is better to perform the operation again. In any case, by closing the bleeder valve after air bleeding is completed, the internal pressure of the piping system will be reduced. Although the height increases and the operation equivalent to depressing the brake pedal 14 becomes impossible, since the shock absorber 21 is interposed between the operating member 19 and the telescopic member 16,
The rotation of the motor 24 can be continued, and in order to stop the rotation of the motor 24, a switch circuit for opening a timer circuit may be incorporated.

FIG. 4 shows another embodiment of the motion conversion member 26.
In this case, a shaft 33 having right-handed and left-handed spiral continuous grooves f formed on its circumference is installed in the case 4 along the telescopic member 16, and the shaft 33 and the output rotating shaft 25 are connected to the gear G. ₁ and _G2 , and a slider 34 that moves relatively only along the center line direction of the continuous groove f is rotatably pivoted to the operating member 19, and is a brake operating device. The feature is that the front and rear lengths of A can be shortened.

Note that the specific structure of the motion converting member 26 can be modified in various ways.

Alternatively, the electric motor 24 and a control device in the control box 32 may be connected by a cable, and the motor 24 may be controlled by wired commands. However, in this case, when changing the air bleed position, the cable may be dragged or wrapped around the lift, so it is undeniable that the handling is somewhat inferior.
It goes without saying that it is most preferable to take the form of wireless operation as shown in the embodiment.

Further, although the rear support 7 is configured to be able to freely switch between two states X and Y, which is advantageous for carrying and storing, it is also possible to provide the rear support 7 fixedly in the usage state Y. Various changes can be made to the specific structure for adjusting the height and front/rear position.

As explained above, the present invention provides a brake operating device as described at the beginning, in which the device body is configured to be height adjustable with respect to the vehicle body, and one end of the device body is fixed to the device body for guidance. A brake pedal operating member having one end protruding outward from the device main body is provided so as to be slidably held by the guide body, and the operating member has a brake pedal operating member having one end protruding outward from the device main body, and the operating member has a A pushing member is provided that can freely reciprocate along the axis, a receiving member is fixed to the intermediate part, and a buffer is interposed between the two members, and the pushing member and the output rotation shaft of the reducer are connected to each other by the output rotation. It is characterized in that the pushing member is interlocked and connected via a motion converting member that converts rotational motion of the shaft into linear reciprocating motion along the sliding direction of the operating member and transmits the same.

In other words, since an electric motor is used as the drive source for the operating member for remotely controlling the brake pedal, it is cheaper and more efficient than conventional compressors, contributing to labor savings, and reducing the winding of electric cables. It has many advantages, such as being extremely easy to bundle and convenient for storage, lightweight, and has very low driving noise, but particularly has the following special effects.

This system employs a mechanical operating mechanism that slides an operating member held by a guide based on the rotational motion of the electric motor, and uses this operating member to swing the brake pedal. However, since a shock absorber is interposed in the operating system, even if the bleeder valve is closed when air bleeding is completed while the motor is running, there is no strain on the operating mechanism. This is a brake operating device that has the same function as a shock absorber, has no inferiority in terms of operation and drive, and is useful in terms of use as it can eliminate all the drawbacks of conventional cylinders by improving the drive form as a whole. We are now able to provide

In addition, the present invention has a structure in which the height of the device body relative to the vehicle body can be freely adjusted so that it can be set on the floor surface of the vehicle body, so that the relative vertical positional relationship between the brake pedal and the operating member can be adjusted without the need for special components. Since it is easy to perform, it has the advantage that the above-mentioned brake operation can be performed more reliably and the desired air bleed can be performed efficiently even though it is a one-person operation.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is a schematic perspective view showing an air bleeding operation state, Fig. 2 is a side view of the brake operating device, Fig. 3 is a vertical side view of the same, and Fig. 4 is a diagram showing a different implementation. FIG. 3 is a side view of an example motion conversion member. C... Running vehicle, F... Vehicle floor surface, 1... Device body, 13... Operating seat, 14... Brake pedal, 15... Guide body, 16... Operating member, 1
9...Pushing member, 20...Receiving member, 21...Buffer, 23...Reducer, 24...Electric motor, 2
5...Motion conversion member, 27...Crank arm,
28... Piston rod, 33... Shaft, 34...
Slider, f...Continuous groove.

Claims (1)

[Scope of Claim for Utility Model Registration] A reduction gear connected to an electric motor is installed in the main body of the device, which can be freely adjusted in distance with respect to the brake pedal of the traveling vehicle with the driver's seat as the point of reaction, and can be remotely operated outside the vehicle. In the brake operating device, the brake pedal is configured to apply and release braking by controlling the drive of the electric motor, and the device main body is configured such that its height relative to the vehicle body can be freely adjusted, and the device main body has one end. A guide body is provided fixed to the device body, and a brake pedal operation member having one end protruding outward from the device body is provided so as to be slidably held by the guide body, and A pushing member is provided on the member so as to be able to reciprocate along the sliding direction, a receiving member is fixed to the intermediate part, and a buffer is interposed between both members, so that the output of the pushing member and the speed reducer is The rotating shaft is interlocked and connected via a motion converting member that converts the rotational motion of the output rotating shaft into linear reciprocating motion along the sliding direction of the operating member and transmits the pushing member. A brake operating device featuring: The brake operating device according to claim 1, wherein the rotation of the motor is controlled by wireless remote control. Claim 1, wherein the motion converting member comprises a crank arm fixed to the output rotating shaft, and a piston rod pivotally connected to the free end of the arm and to the pushing member, respectively. Brake operating device described in. The motion converting member includes a shaft that is rotated by the rotational output shaft and has continuous right and left spiral grooves on its circumferential surface, and a tip provided on the pushing member that plunges into the spiral groove of the shaft. The brake operating device according to claim 1 or 2, characterized in that the brake operating device comprises a slider having a sliding surface.