JPH0535528U - Emergency auxiliary brake - Google Patents

Abstract

(57) [Summary] [Purpose] Lower the rubber plate from the bottom of the car body,
An object of the present invention is to provide an emergency auxiliary brake capable of stopping an automobile due to friction between a road surface and a rubber plate. [Structure] Cylinders are mounted on the lower left and right sides of the vehicle body, respectively, a mounting rod is fixed to the lower end of the piston rod of the cylinder, and a rubber plate is fixed to the end of the mounting rod. Change the oil pressure to connect with the piston rod.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an emergency auxiliary brake used for decelerating and stopping an automobile due to a frictional force between a road surface and a rubber plate.

[0002]

[Prior Art]

 Braking devices include service brakes used to decelerate and stop automobiles and parking brakes. Of these, the regular brake presses the brake pedal to apply pressure to the oil, and the pressure passes through the brake pipe. This hydraulic pressure causes two brake shoes to be installed oppositely by a return spring inside the rotating brake cylinder. When expanded, this brake shoe is pressed against the drum with a strong force, and the internal expansion type brake that works with the frictional force and the brake pedal to increase the hydraulic pressure Disc-type brakes that stop the rotation of a wheel by pinching a brake disc that rotates integrally with the wheel have been proposed. This service brake is a brake system that expands the operating force applied to the brake pedal with a hydraulic mechanism and transmits it to each wheel to generate braking force.

[0003]

[Problems to be solved by the device]

 The hydraulic brake described in the above-mentioned prior art has the advantage that the hydraulic pressure is transmitted uniformly to each wheel, resulting in high efficiency, but on the other hand, liquid leakage, the generation of air bubbles in the pipeline, and the inside of the brake drum. There is a drawback that it loses its function due to the infiltration of water into it.

Therefore, in the present invention, a mechanism that is completely different from the service brake and parking brake mechanisms is provided on the vehicle body, and when the hydraulic pressure increases, the rubber plate descends from the lower surface of the vehicle body and the rubber plate and the road surface are The purpose of the present invention is to provide an emergency auxiliary brake that can stop the vehicle by the frictional force of the vehicle.

[0005]

[Means for Solving the Problems] In order to achieve the above object, the emergency auxiliary brake of the present invention has cylinders attached to the lower left and right sides of the vehicle body, and a rubber plate is attached to the lower end of the piston rod of the cylinder. The fixed mounting rod is fixed, the hydraulic pressure in the cylinder is changed by switching the switch, and the piston rod is moved up and down. In conjunction with this, the rubber plate is raised or lowered.

[0006]

[Action]

 When the switch is changed to increase the oil pressure, oil is sent into the cylinder and the pressure pushes down the piston rod. An attachment rod is fixed to the lower end of the piston rod, and a rubber plate is fixed to this mounting rod.Therefore, the rubber plate moves down in contact with the piston rod, comes into contact with the road surface, and the rubber plate Friction between the car and the road surface helps stop the car.

When the switch is switched to reduce the hydraulic pressure, the piston rod of the cylinder rises, and in conjunction with this, the rubber plate also rises, the rubber plate is separated from the road surface, and the brake is released.

[0008]

【Example】

 Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. Reference numeral 1 is a brake pedal, which is provided with a switch 3 on the back via a spring 2. 4 is a motor, 5 is a power source, and 6 is a cylinder. A belt 9 is suspended around a pulley 7 provided on the lower surface of the motor 4 and a pulley 8 provided on the cylinder 6, and when the switch 3 is pressed, it flows to the motor 4. The current flowing is reversed. The cylinder 10 is fixed to the lower left and right sides of the vehicle body 11, and is connected to the cylinder 6 by a pipe 12. Reference numeral 13 is a piston rod of the cylinder 10, and a mounting rod 14 is fixed to the lower end portion thereof. An iron plate 15 is fixed to the end of the mounting rod 14, and a rubber plate 16 made of rubber for tires is formed on the back surface of the iron plate 15 and is formed with a groove for slip prevention. Reference numeral 17 is a spring for preventing the rubber plate 16 from swinging, and is interposed between the mounting rod 14 and the iron plate 15.

Next, the operation of this embodiment will be described. When the brake pedal 1 is strongly pressed, the switch 3 is activated, and a current flows through the circuit composed of the power supply 5, the motor 4, the wire 18, and the switch 3 in the reverse direction before the pedal is pressed. Therefore, the pulley 7 of the motor 4 rotates in a fixed direction, and this power is transmitted to the pulley 8 of the cylinder 6. The rotation of the pulley 7 of the cylinder 6 applies a pressure to the oil filled in the cylinder 6, and this pressure is uniformly transmitted to the two cylinders 10 through the pipe 12. When the hydraulic pressure in the cylinder 10 is increased, the piston rod 13 is pushed down, the mounting rod 14 is lowered, and the rubber plate 16 is lowered from the lower surface of the automobile body 11 to come into contact with the road surface 19, and the rubber plate 16 and the road surface 19 are brought together. The car brakes due to friction with. Next, when the foot is released from the brake pedal 1 and the brake pedal 1 is returned by the elastic force of the spring 2, the switch 3 is switched and the electric current flows through the motor 4 in the direction opposite to the front. Therefore, the pulley 7 of the motor 4 rotates in the direction opposite to the front. This power is transmitted to the pulley 8 of the cylinder 6 via the belt 9, and the piston of the cylinder 6 moves to reduce the hydraulic pressure in the cylinder 6. This reduced pressure is uniformly transmitted to each cylinder 10 through the pipe 12, the piston rod 13 rises, and the rubber plate 16 also rises in conjunction with this. When the rubber plate 16 comes into contact with, for example, the front floor pan of the underbody of the automobile body 11, the rubber plate 16 comes into close contact therewith, the pulley 7 of the motor 4 stops rotating, and the brake is released.

[0010]

[Effect of the device]

 Since the present invention is configured as described above, it has the following effects. In the case of the conventional internal expansion type brake, rainwater may enter the brake drum, but since the present invention has a structure in which the piston rod is moved up and down by hydraulic pressure, it may affect the operation even if it gets wet with water. Absent. Further, since the brake can be actuated by the friction between the rubber plate and the road surface, it has an effect of assisting the regular brake in combination with the regular brake.

[Brief description of drawings]

FIG. 1 is an explanatory view showing an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a state where a rubber plate is lowered.

[Explanation of symbols]

 1 Brake Pedal 2 Spring 3 Switch 4 Motor 5 Power Supply 6 Cylinder 7 Pulley 8 Pulley 9 Belt 10 Cylinder 11 Car Body 12 Pipe 13 Piston Rod 14 Mounting Rod 15 Iron Plate 16 Rubber Plate 17 Spring 18 Wire 19 Road Surface

Claims (1)

[Scope of utility model registration request] 1. A mounting rod 1 in which cylinders 10 are attached to the lower left and right sides of a vehicle body 11, and a rubber plate 16 is fixed to the lower end of a piston rod 13 of the cylinder 10.
4 is fixed, and the rubber plate 16 is raised or lowered by vertically moving the piston rod 13 by changing the hydraulic pressure in the cylinder 10 by switching the switch 3, and the emergency auxiliary brake is characterized. ..