JPS62500094A - braking device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Control device Technical field TECHNICAL FIELD The present invention relates to a control device, and more particularly, to a control device for controlling a brake device of an automobile to input reverse gear. The present invention relates to a braking device used as an auxiliary braking device that is activated when the brake is turned on.

conventional techniques Known braking systems for automobiles are operated by a reverse gear, and this reverse gear is automatic. Activated by a switch and detector located at the rear of the vehicle, the braking device The switch will only operate when it comes into contact with an object, such as an obstacle, and the switch engages the reverse gear. It has a structure that allows

To date, many proposals have been made regarding air-actuated braking systems, but hydraulic There is a demand for a backward poetry f7I type υI IJJ device that uses a motion device. This way Several Una-type control devices have been proposed, all of which can be reprinted. isn't it.

Specifically, U.S. Patent No. 2,588. , “No. 815 (Patent m is Fasolino ino)) indicates various types of brakes activated when reversing, and this υ1 suspension is electrically operated. Using a switch and detector, the switch is activated by the car's reverse gear lever. , the detector is located at the rear of the vehicle body and activates the actuator of the FJ control device. This υ1 movement An example of a device is a solenoid valve operated by a brake pedal link; Another example is a solenoid valve, which runs from the suction manifold to the air-actuated cylinder. A vacuum is applied to the cylinder, and a vacuum is applied to this air-actuated cylinder, and this air-actuated cylinder is a structure connected to the brake pedal link by a flexible cable.

British Patent No. 1470129 (Patentee: Ebbeson et al.) A braking device similar to the above is disclosed, and this l1ill actuating device includes an electric switch and an electromagnetic brake. Operated by a self-contained air operated valve. This valve is a vacuum turbo mechanism in the car's braking system. is connected to the servomechanism to control the atmospheric pressure applied to the vacuum chamber of this servomechanism, and The brake system is activated when a switch controlled by a detector is activated.

Disclosure of invention The present invention provides an auxiliary brake that operates when reverse gear is engaged in an automobile's hydraulic braking system. The purpose is to provide a braking device used as a device.

The purpose is to provide a braking device for use as an auxiliary braking device for automobiles. Device d includes a device that engages with the reverse gear of the automobile to operate, and this device is connected to the valve. a detector is connected to the valve, the valve is disposed in a fluid circulation path; The circuit includes a pump that produces pressurized fluid, which causes the valve to operate. This is accomplished by a braking device that operates the braking device by flowing pressurized fluid when the device is in the be done.

The pressurized working fluid is a liquid or a gas, preferably air.

Preferably, the device actuated by the reverse gear is a switch.

The switch operated by the reverse gear and the detector are connected in one valve or in series. It can be operated by connecting two valves.

directly or indirectly pressurizes the hydraulic system of a vehicle with pressurized fluid; can operate a mechanical structure that initiates the brakes of the vehicle.

In one form of the invention, the pressurized fluid is used to actuate a hydraulic cylinder. This hydraulic cylinder is connected to the braking hydraulic circuit, and this hydraulic cylinder is connected to the braking hydraulic circuit. This hydraulic cylinder can be used like a conventional hydraulic cylinder in the hydraulic circuit of can be used by connecting them in series.

Alternatively, the hydraulic cylinder may actuate a mechanical actuator of the braking device. For example, the hydraulic cylinder may be used to control the brake pedal and the servo-driven 11 It is also possible to operate a link with a servo mechanism of the 11 motion device. Simple structure To make the cylinder inflated, the link is included in a The brake link operates normally, but when the cylinder is compressed, this hydraulic pressure The cylinder may actuate the braking device independently of the foot brake pedal. can.

Another aspect of the invention includes a mechanical structure for operating the braking device. child The mechanical structure of the car is connected to the car's working brake circuit and the car's brakes It includes a rod-shaped member that operates the system. This rod-shaped member prevents the brake system from starting. It is possible to move between the first position where the brake system is activated and the second position where this brake system is activated. Wear. Further, a valve is moved 1QlJ, and the valve moves the rod-like member between the first position and the second position. Move between positions.

In this aspect, the brake system of the automobile includes an A111 driving rod-shaped member, and the rod-shaped The member connects a brake pedal and a piston rod that operates the brake hydraulic cylinder. Therefore, this braking hydraulic cylinder operates the braking device.

In the braking device according to the present invention, the rod-like member is connected to the brake actuating rod-like member and the piston. The braking device is arranged between the ton rod and the braking device is actuated by a brake pedal, or the present invention It can be activated using a braking device based on

Brief description of the drawing FIG. 1 is a schematic diagram of one embodiment of a braking device according to the invention; FIG. II. Schematic representation of another form of vJ device, FIG. FIG. 4 is a schematic diagram of another embodiment of the braking device according to the present invention, and FIG. A schematic diagram of still another form of the braking device according to the present invention, FIG. 6 is similar to FIGS. 1 to 5. A schematic representation of a valve suitable for use in a brake system, FIG. It is also a schematic diagram of another form.

BEST MODE FOR CARRYING OUT THE INVENTION In the Ij' device shown in Figure 1, the working fluid is pressurized in a cylinder and an auxiliary valve (not shown) ) is sent to the current brake circuit.

The circuit is essentially operated by a pneumatically actuated valve 10 of the type shown in FIG. system It is pressurized by the +y+ valve 10 along the air supply path 11 for the vehicle, and the air supply path 11 is located at the rear of the vehicle body. is connected to an air-operated detector 12. The valve 10 is popular during JIE operation. connected to prevent accidental pressurization of air.

Pressurized air is produced by a pump 13, which is a switch actuated by a switching lever. It is connected to an electric circuit including a switch 14 and a solenoid valve 15. The pump 13 is a reversing device When engaged, electricity is supplied to create pressurized air, and this pressurized air is forwarded by the check valve 16 outlet. Send to Registrar 10.

When the air-operated II+ type detector 12 is activated, for example, by contacting an obstacle, the The air in the air passage 11 actuates the valve 10, which receives air pressurized by the pump 13. into the cylinder 17. This cylinder has screws 1 and 18 and screws 1 and 1. 9, and this screw PJ19 is mechanically connected to the hydraulic cylinder 20.

The hydraulic cylinder 20 is of conventional type and includes a piston 21. 14 and a return spring 22 (- actuated and comprising a valve member 23, which valve member 23 The connection port 24 to the fluid reservoir 25 is closed when the force vLh is applied. Pressurized air is delivered to an air line 26, which air line 26 is connected to the conventional hydraulic system of the vehicle. Connected with a valve (V not shown) or a joint to the brake master ring of the vehicle. Connected.

The pump 13 is actuated by the switch 14, thus when the vehicle is reversing. Only make pressurized air. When the vehicle is not in a backward state, the pump 13 is not activated. It does not move, and the valve 15 remains closed.

Since the pump 13 makes a g sound, install this pump 13 near the rear of the vehicle. is preferable. In this way, this pump 13 can be used as a backward warning device for a car. It works.

The valve 10 operates with very slight fluctuations in the pressure of the air pipe 11, so it is extremely sensitive. It can be made into a device.

An improved version of the apparatus of FIG. 1 is shown in FIG. In this device, the cylinder 17.20 is Instead, one cylinder 27 is used which connects the valve 10 to the air line 2. It is actuated directly by the pressure of the air sent into 8.

Yet another embodiment of the invention is shown schematically in FIG.

The cylinder 30 is air actuated and has an air actuated piston having a piston rod 32. 31 and a return spring 33. The air pipe 28 is connected to the circulation path as shown in FIG. However, the connection to the automatic JT brake system is mechanical rather than hydraulic.

The piston culm 32 is connected to a link part 34 of the brake pedal of the vehicle body, and the piston culm 32 is A conductor 30 is connected to a portion 35 of the link. Therefore, the said link is It moves when the brake pedal 36 is pressed and corresponds to the air pressure in the air pipe 28 of the piston rod 32. It also moves depending on the movement you make. This air pressure is applied to both the switch 14 and the detector 12 at the same time. produced by actuation.

Said device comprises a valve 10.15 in the air circuit of FIG. If one solenoid valve is used instead of a standard switch, it can be made into a cylinder. This kind of structure The structure is shown in Figure 4.

Cylinder 40 is similar to each cylinder 20.degree. 27.30 of FIGS. 1-3.

The air-operated VJ type detector 12 and the air supply line 11 are connected to the air-operated switch 41. This switch 41 (which is connected to the solenoid valve 42) is activated by the switching lever. The switch 1/I to operate the pump 13 is the same as in FIG. Is this pump 13 connected to reverse pressurized air? Supplied to electric II valve 42 via 16 Jru. Therefore, if switches 14 and 41 are both activated, the solenoid valve will supply pressurized air. It is sent to the cylinder 40 and acts as a brake for the automobile in the same manner as described above.

The electric relay 43 is provided when the switch 41 is turned on and then the solenoid valve is activated. The switching lever is removed from the back position, the switch is turned off, and the relay is turned off. This is to continue the operation of the solenoid valve until the electric circuit connected to 43 is opened. Ru. With this structure, the signal from the detector 12 is interfered with when applying the car's brakes. Only the reverse gear that continued to operate even after the auxiliary braking device was activated and was initially released from fIi after the auxiliary braking device was activated can be moved by

Two further modifications of the device are shown in FIG. This modification falls within the scope of the invention. be caught.

This improved device first maintains braking after a signal from the air actuated detector. The closing device uses a pneumatically actuated valve 50. The valve 42 is connected to the air supply line 28 It will continue to operate as long as there is air pressure.

@2, two hydraulic cylinders are used at the front and rear. hydraulic cylinder 20 is a part of the auxiliary circulation path as shown in FIG. 1, but the pressurized working fluid discharge path 26 is connected to the inlet passage 52 of the fluid reservoir of the cylinder 51, thereby Connected to the working fluid path of the vehicle's brake system. This device allows the working fluid to When pressurized in response to actuation of detector 12, this pressurized working fluid is sent to the master cylinder 51 of make it move.

Normally, the cylinder 51 is made with a foot brake link 54 and an auxiliary master cylinder. It does not work in the driver 20.

This is because the discharge passage 26 is closed when the cylinder is actuated. This outfit When multiple locations are used, the fluid reservoir 25 is used.

The device can also be provided with an air reservoir. This means that the pump discharge pressure is This is to supply pressurized air from this air reservoir until the operating pressure of the Ru. However, in the normal case said air reservoir is not essential, especially said air reservoir. If the pump is placed at the rear of the body, no reservoir is required. The reason is that the volume of the pipe is There is a mechanism that can be made large enough to suit the purpose of writing.

Valve 10 and check valve 16 serve to maintain the air pressure.

The valve 10 is shown in FIG. Inlet 64 is for pressurized air from the pump; Inlet 60 is connected to a conduit from detector 12 . When the detector is activated, the Pressurized air is applied to inlet 60 to lower valve member 63 toward spring 62, thereby causing The discharge port 64 is closed between the discharge port 64 and a discharge path (not shown) to the atmosphere, and the discharge port 64 is controlled. connection to the starting device (eg, line 28 in FIG. 1) of the moving device.

A valve that operates with a differential pressure of 17.7 to 76.2 mm (1/2 to 3 inches) of water is a valve. -Stermite 5BV-913 (BOOstermite Type 5BV-9 13) is commercially available.

FIG. 7 shows another embodiment of the present invention. In FIG. 7, the switching lever 14 is connected to the power unit ( (not shown) and is also connected to the pump 13 via an electric wire 70. pump 1 3 is connected to the switch 71 via an electric wire 72.

The switch 71 is a low-sensitivity electrical switch, such as a Hagea (H[RGAIR") This is a switch commercially available under the name . In other embodiments, switch 71 is Humphrey (Hun+phrey) low! ! It is possible to change to an i-degree valve.

The switch 71 acts as a monitoring device and the detector 73 is connected to the air via the air line 74. It is connected to switch 71.

Air flowing from detector 73 through line 74 actuates switch 71 . detection An air bag is provided in the container 73, and this air bag is compressed to cause air to flow through the pipe line 74. You can also do that.

The switch 71 is connected to the solenoid valve 75 through a wire 76 and connected to the solenoid valve 75 through a wire 76 . and is also connected to the electric wire 70 via an electric wire 79.

The solenoid valve 75 is connected to the pump 13 via an air line 80 and has an exhaust port 81. Ru. This solenoid valve 75 is connected to a relay valve 77 via an air conduit 82.

This relay valve 77 is further connected to a valve 83 via an air line 84. 3 performs a monitoring function by means of an air line 84. The valve 83 shown in Fig. 7 is a diaphragm. The diaphragm 85 is a flexible diaphragm 85. It is connected to the moving rod 86. Valve 83 has a chamber 94 that is filled with air. This valve 83 also has a separate chamber 95 and is connected to the line 84. Chamber 95 is located on the other side of diaphragm 85, opposite chamber 94. I get kicked. Instead of this structure, valve 83 may be a piston-type air cylinder, and this cylinder It is also possible to connect the movable rod 86 of the cylinder to a piston used in place of the diaphragm 85. can.

The end 86a of the movable rod 86 is engaged with the end of the brake operating rod 87, and the movable The end 86b of the rod 86 can also be engaged with the end of the piston rod 88. Bree The key operating rod 87 is connected to a brake lever (not shown) via a vacuum servo auxiliary device 89. Connected.

, the piston rod 88 is connected to the piston 90 of the master brake cylinder 91, This master brake cylinder 91 has a reservoir 92 and an outlet 93 for working fluid. However, this working fluid outlet 93 is connected to a hydraulic brake (not shown).

The form shown in FIG. 7 is constructed #II as follows.

When the reverse gear is engaged, power is supplied to the electric wires 70.72.79. put in reverse gear When the detector 72 is activated, the switch 71 is activated by the air in the conduit 74, and the wire 7 is activated. 6. This causes the solenoid valve 75 to operate, and this solenoid valve 75 supplies pressurized air. Flow along lines 80, 82 to relay switch 77. This relay switch 77 The passing air activates the relay switch and powers the wire 78. Therefore If said detector is not activated thereafter, solenoid valve 75 remains activated until reverse gear is removed. Continue. The reason is that the solenoid valve is ff This is because it is connected to 1l.

When the solenoid valve 75 operates, pressurized air flows from the pipe 82 through the relay switch 77. , the flow reaches the conduit 84 and the solenoid valve 84 is actuated. The pressure in the line 84 is equal to the pressure in the chamber 9 4 and compresses the chamber 95, moving the diaphragm 85 to the right. let

The piston rod 86 and the diaphragm 85 connected to the piston rod 86 The end 86b of this piston rod 86 moves toward the piston rod 88. 8 and moves the piston 90 to operate the brake.

When the reverse gear is removed, the power supply to the wires 70, 79 is stopped and the pump 79 is stopped. As a result, the electric flU valve 75 becomes inoperative. Pipe lines 82 and 84 are connected to outlet 81. Then, the diaphragm returns to its initial position due to its elasticity, and the piston rod 88 returns to its original position. Return to the beginning. Therefore, the piston rod 88 also returns to its initial position, causing the brake to fail. becomes active.

When the valve 83 is a screw type 1-cylinder, the spring moves this piston. Return to its initial position. If necessary, this spring allows the die to return the anorum to its initial position. Return J: You can also make a sea urchin J.

When the brake pedal is depressed, the brake actuating rod 87 moves to the piston length 86. Move towards the side and engage the screw 1 on the culm 86'! Since the piston is 86 moves toward the piston length 88 and engages with this piston rod 88, so the rod 87 moves to activate the above-mentioned procedure τ・rookie. When you don't press the brake pedal Since the rods 86 to 88 return to their initial positions, no brakes are applied.

Industrial applicability The configuration shown in Figure 7 provides a mechanical braking device that can be applied to current brake systems. This braking device (can be activated by depressing the player pedal) or It is possible that it will be activated when the reverse gear is engaged and the detector 73 is activated. Procedural Municipal Letter (Method) November 6, 1986

Claims (12)

[Claims] 1. In a control device used as an auxiliary brake system for an automobile, the braking device is equipped with a device that operates by engaging with the reverse gear of an automobile, and this device is connected to a valve. a detector connected to and operatively connected to the valve, said valve including a bomb; Located in a fluid line, the bomb produces pressurized fluid, which causes the valve to operate. The braking device is characterized in that the braking device is actuated by flowing pressurized fluid when the braking device is in a dynamic state. braking device. 2. Claims characterized in that the device activated by the reverse gear is a switch. Braking device according to paragraph 1. 3. The devices and detectors operated by the reverse gear are connected to and operated by one valve. The braking device according to claim 1 or 2, characterized in that: 4. The device and detector operated by the reverse gear are connected to two valves connected in series. The braking device according to claim 1 or 2, characterized in that the braking device is operated by . 5. Equipped with a hydraulic cylinder, this hydraulic cylinder is operated by pressurized fluid. A braking device according to any one of claims 1 to 4. 6. The hydraulic system is characterized in that it is installed in a hydraulic brake circulation path of an automobile. A braking device according to claim 5. 7. The hydraulic device is connected to and operates the braking device. A braking device according to claim 5. 8. Claim 1, further comprising a mechanical structure for operating the braking device. The braking device according to items 1 to 4. 9. The mechanical structure is characterized in that it includes a rod-shaped member that operates the braking device. A braking device according to claim 8. 10. The rod-shaped member has a first position in which the braking device is not activated and a first position in which the braking device is activated. The control according to claim 9, characterized in that the control moves between the second position and the second position. motion device. 11. a valve for moving the rod between the first and second positions; 11. The braking device according to claim 10, wherein: 12. The mechanical structure includes a brake actuation rod-shaped member connected to a brake pedal; It is characterized by being installed between the piston rod that operates the hydraulic brake cylinder. A braking device according to any one of claims 8 to 11.