CN113613970B - Braking device - Google Patents
Braking device Download PDFInfo
- Publication number
- CN113613970B CN113613970B CN202080022614.3A CN202080022614A CN113613970B CN 113613970 B CN113613970 B CN 113613970B CN 202080022614 A CN202080022614 A CN 202080022614A CN 113613970 B CN113613970 B CN 113613970B
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- Prior art keywords
- air
- brake
- line
- emergency
- opening
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
- B60T13/26—Compressed-air systems
- B60T13/36—Compressed-air systems direct, i.e. brakes applied directly by compressed air
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
- B60T15/02—Application and release valves
- B60T15/36—Other control devices or valves characterised by definite functions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
- Braking Systems And Boosters (AREA)
Abstract
The brake device (S) has a normal line (1), an emergency line (3), a main air tank (4), a wheel parking air tank (5), and a switching unit (6), the switching unit (6) has a valve (62), when a brake pedal is depressed in a state in which damage occurs to the normal line (1), the valve (62) rapidly opens an opening (61) for allowing air flowing in from the emergency line (3) to flow out to the normal line (1) as a value obtained by subtracting the pressure of air supplied from the wheel parking air tank (5) from the pressure of air supplied from the main air tank (4) increases, and the normal line (1) has: a tube (11) one end of which is connected to the switching unit (6) and through which air flowing out of the switching unit (6) passes; and a connector (12) connected to the other end of the tube (11) opposite to the one end, the inner diameter being larger than the inner diameter of the tube (11).
Description
Technical Field
The present disclosure relates to a brake device of a vehicle.
Background
A braking device is provided in a vehicle. Patent document 1 discloses a brake device for a tractor, which includes: a service brake signal line from a brake valve piping connected to a service brake air tank to a tractor relay valve; an emergency brake piping connecting the spring brake air tank and the tractor relay valve; a common brake line that supplies a signal gas of a common brake from a trailer relay valve to a trailer side; and an emergency brake line that always supplies gas to the tractor side gas tank.
Prior art literature
Patent literature
Patent document 1: japanese patent laid-open No. 11-20676
Disclosure of Invention
Technical problem to be solved by the invention
In some cases, a vehicle is provided with: a service line that supplies air for operating the service brake when the brake pedal is depressed; and an emergency line for passing air for operating the emergency brake. If damage occurs to the service line, the service brake becomes inoperative. In order to brake the vehicle even in this state, it is conceivable that when the brake pedal is depressed in a state where the normal line is damaged, air in the emergency line is discharged to the normal line via a switching portion such as a tractor control valve, and the emergency brake is operated.
In this case, if the inner diameter of the connector provided in the path through which the air flows from the switching portion to the normal line is smaller than the inner diameter of the pipe through which the air flows, the exhaust resistance of the normal line becomes large, and there is a problem in that it takes a long time for the emergency brake to operate.
Accordingly, the present disclosure has been made in view of these points, and an object thereof is to provide a brake device that allows a brake to be quickly operated even if a common pipeline is damaged.
Technical means for solving the technical problems
In claim 1 of the present disclosure, there is provided a brake device comprising: a service line for passing air for operating a service brake of the vehicle; an emergency line for passing air for operating an emergency brake of the vehicle; a main air tank for storing air; a wheel parking air tank that stores air to be supplied to the emergency line; and a switching unit having a valve for opening an opening for allowing air flowing in from the emergency line to flow out to the normal line, wherein when a brake pedal is depressed in a state where damage occurs to the normal line, the valve opens the opening more rapidly as a value obtained by subtracting the pressure of air supplied from the wheel parking air tank from the pressure of air supplied from the main air tank is greater, the normal line having: a tube having one end connected to the switching unit and through which air flowing out of the switching unit passes; and a connector connected to the other end of the tube opposite to the one end, the connector having an inner diameter larger than an inner diameter of the tube.
The switching portion may have an outflow portion from which the air flows out, and the inner diameter of the pipe may be larger than the diameter of the outflow portion. The valve of the switching unit may open the opening, so that air flowing into the switching unit from the emergency line flows out from a hole formed by damage to the normal line.
In addition, the valve may have: a lower piston for changing the opening degree of the opening portion; and an upper piston that moves the lower piston, the lower piston opening the opening portion on the condition that a pressure of air supplied from the main air tank is greater than a pressure of air supplied from the wheel parking air tank.
Further, the opening degree may be increased rapidly as the lower piston moves more rapidly as a value obtained by subtracting the pressure of the air supplied from the wheel parking air tank from the pressure of the air supplied from the main air tank increases.
Effects of the invention
According to the present disclosure, the following effects are obtained: in the brake device, even if the common pipeline is damaged, the brake is quickly operated.
Drawings
Fig. 1 shows a structure of a brake device according to the present embodiment.
Fig. 2 shows a configuration near the connector.
Detailed Description
[ construction of brake S ]
Fig. 1 is a diagram showing a configuration of a brake device S according to the present embodiment. Fig. 2 is a diagram showing a configuration in the vicinity of the connector 12.
The vehicle has a service brake A, a brake pedal B, an emergency brake C and a brake device S.
The service brake a is, for example, a service foot brake that is operated by a driver pressing the brake pedal B with a foot during operation of the vehicle. The service brake a is operated by the driver depressing the brake pedal B. The service brake a is, for example, an air brake. The service brake a is actuated by, for example, air inflow.
The brake pedal B is a part for operating the service brake a. When the brake pedal B is pressed in a state where a damage occurs in the service line 1 described later, the emergency brake C is actuated.
The emergency brake C is, for example, a parking brake operated by a driver moving a handle by hand or foot. The emergency brake C is, for example, an air brake. The emergency brake C is operated by, for example, air flowing out from the emergency brake C and the emergency line 3.
The brake device S is a device for operating the service brake a and the emergency brake C. The brake device S includes a common line 1, a common line switching unit 2, an emergency line 3, a main air tank 4, a wheel parking air tank 5, and a switching unit 6.
The service line 1 is provided for the passage of air for operating the service brakes a of the vehicle. The usual piping 1 includes, for example, a pipe or hose made of metal, rubber, or resin. One end of the common line 1 is connected to a common line switching unit 2, and the other end is connected to a switching unit 6 described later. Details of the usual line 1 are described later.
The common line switching part 2 is for example a relay valve. The service line switching unit 2 switches whether or not to flow air to the service brake a using the air flowing into the service line 1 as a signal for operation. Specifically, in the case where air flows in the service line 1, the service line switching portion 2 flows air to the service brake a. On the other hand, in the case where no air flows in the service line 1, the service line switching portion 2 does not flow air to the service brake a.
The emergency line 3 is provided for the passage of air for the operation of the emergency brake C. The emergency line 3 includes, for example, a pipe or hose made of metal, rubber, or resin. The emergency line 3 has one end connected to the emergency brake C and the other end connected to a switching unit 6 described later.
The emergency brake C is not operated during the inflow of air into the emergency brake C and the emergency line 3. On the other hand, the emergency brake C is operated by air flowing out of the emergency line 3 and air flowing out of the emergency brake C.
The main air tank 4 is a tank for accumulating air supplied to the switching unit 6. The main air box 4 is fixed to the side frames. The wheel parking air tank 5 is a tank that stores air to be supplied to the normal line 1 and the emergency line 3. The capacity of the wheel parking air tank 5 is smaller than the capacity of the main air tank 4. The wheel parking air box 5 is fixed to the side frame.
The switching unit 6 is, for example, a TCV (trailer control valve). The switching unit 6 is fixed to the side frame. The switching section 6 has an opening 61 and a valve 62. The opening 61 has an opening for letting out the air flowing in from the emergency line 3 to the normal line 1.
The valve 62 changes the amount of air flowing from the emergency line 3 into the common line 1 based on the pressure of air supplied from the main air tank 4 and the pressure of air supplied from the wheel parking air tank 5. Specifically, the valve 62 opens the opening 61 more rapidly as the value obtained by subtracting the pressure of the air supplied from the wheel parking air tank 5 from the pressure of the air supplied from the main air tank 4 increases. When the brake pedal B is depressed in a state where the normal line 1 is damaged, air is supplied from the main air tank 4 to the switching portion 6, and the valve 62 opens the opening 61. Details of the switching section 6 are described later.
When the brake pedal B is depressed while the normal line 1 is not damaged, the valve 62 of the switching unit 6 opens the opening 61, and the air flowing from the wheel parking air tank 5 into the switching unit 6 flows out to the normal line 1 and the emergency line 3.
On the other hand, when the brake pedal B is depressed in a state where the normal line 1 is damaged, the valve 62 of the switching unit 6 opens the opening 61, and the air flowing into the switching unit 6 from the emergency line 3 flows out from the hole 13 formed by the damage of the normal line 1. The hole 13 is formed by, for example, collision of the usual pipeline 1 with an external object, thereby being impacted by the collision. The external object includes, for example, a convex portion formed on a road, a stone flown over, or the like.
[ detail Structure of usual pipeline 1 ]
The usual line 1 has a pipe 11 and a connector 12. One end of the tube 11 is connected to the switching unit 6, and air flowing out of the switching unit 6 passes through the tube. The connector 12 is connected to the other end of the tube 11 opposite to the one end. The connector 12 is connected to a pipe having one end connected to the common line switching section 2, for example. If the inner diameter of the connector 12 is smaller than the inner diameter of the pipe 11, the exhaust resistance of the common pipeline 1 becomes large. As a result, the time required until the air flows out of the emergency line 3 becomes long, and therefore, a long time is required until the brake is actuated. Therefore, the inner diameter of the connector 12 in the brake device S of the present embodiment is larger than the inner diameter of the tube 11.
In this way, the brake device S can reduce the exhaust resistance of the line 1 for xiao Chang by the connector 12 having an inner diameter larger than the inner diameter of the pipe 11 in the normal line 1. Therefore, the brake device S can quickly flow the air flowing out of the switching portion 6 in the normal line 1, and therefore, the air flowing in from the emergency line 3 in a state where the valve 62 opens the opening portion 61 can quickly flow into the normal line 1. As a result, when the brake pedal B is depressed in a state where the service line 1 is damaged, the brake device S can rapidly actuate the emergency brake C.
[ detail structure of switching section 6 ]
The switching section 6 has an inflow section 63, an outflow section 64, a plurality of spaces 65, an elastic member 66, a 1 st partition plate 67, and a 2 nd partition plate 68. The inflow portion 63 is a portion into which air flows into the switching portion 6. Specifically, the inflow portion 63 has an opening through which air flows into the switching portion 6.
As the inflow portion 63, a 1 st inflow portion 631, a 2 nd inflow portion 632, a 3 rd inflow portion 633, and a 4 th inflow portion 634 are provided. The 1 st inflow portion 631 is a portion into which air supplied from the main air box 4 flows. The 2 nd inflow portion 632 is a portion into which the air supplied from the main air tank 4 flows. The 3 rd inflow portion 633 is a portion into which the air supplied from the wheel parking air tank 5 flows. The 4 th inflow portion 634 is a portion into which air flows from the emergency line 3 when the brake pedal B is depressed in a state where the normal line 1 is damaged.
The outflow portion 64 is a portion from which air flows out from the switching portion 6. Specifically, the outflow portion 64 has an opening through which air flows out from the switching portion 6. As the outflow portion 64, a 1 st outflow portion 641 is provided. The 1 st outflow portion 641 is a portion from which air flows out from the switching portion 6. The 1 st outflow portion 641 is a portion from which air flowing in from the emergency line 3 flows out to the common line 1 when the brake pedal B is depressed in a state where the common line 1 is damaged.
The inner diameter of the tube 11 may be larger than the diameter of the 1 st outflow portion 641, for example. Specifically, the inner diameter of tube 11 may be larger than the inner diameter of the opening formed in 1 st outflow portion 641. The brake device S can further reduce the exhaust resistance of the common line 1 by making the inner diameter of the sampling pipe 11 larger than the diameter of the 1 st outflow portion 641.
The space 65 is formed inside the switching section 6. As the space 65, a 1 st space 651, a 2 nd space 652, a 3 rd space 653, and a 4 th space 654 are provided. The 1 st inflow portion 631 communicates with the 1 st space 651. The 2 nd inflow portion 632 communicates with the 2 nd space 652. The 2 nd space 652 is located below the 1 st space 651 in the height direction of the vehicle. The opening 61 and the 1 st outflow 641 communicate with the 3 rd space 653. The 3 rd space 653 is located below the 2 nd space 652. The opening 61, the 3 rd inflow portion 633 and the 4 th inflow portion 634 communicate with the 4 th space 654. The 4 th space 654 is located below the 3 rd space 653.
The elastic member 66 is, for example, a spring. The elastic member 66 urges the upper piston 622 upward in the height direction of the vehicle. The elastic member 66 is disposed in the 3 rd space 653.
The 1 st partition plate 67 is a part that partitions the 1 st space 651 and the 2 nd space 652. The 1 st partition plate 67 moves the 2 nd partition plate 68. The 1 st partition plate 67 has a plurality of protrusions provided on a surface on the 2 nd partition plate 68 side. The front ends of the plurality of projections press the 1 st partition plate 67 side surface of the 2 nd partition plate 68 downward, and the 1 st partition plate 67 moves the 2 nd partition plate 68 downward. Specifically, when air flows from the 1 st inflow portion 631 into the switching portion 6, the 1 st partition plate 67 moves downward in a state where the lower ends of the plurality of protruding portions of the 1 st partition plate 67 contact a region of a part of the surface of the 2 nd partition plate 68 on the 1 st partition plate 67 side, thereby moving the 2 nd partition plate 68 downward.
The 2 nd partition plate 68 is a part that partitions the 2 nd space 652 and the 3 rd space 653. The 2 nd partition plate 68 moves the upper piston 622.
The valve 62 has a lower piston 621 and an upper piston 622. The lower piston 621 is a component for changing the opening degree of the opening 61. The lower piston 621 opens the opening portion 61 on condition that the pressure of the air supplied from the main air tank 4 is greater than the pressure of the air supplied from the wheel parking air tank 5. On the other hand, the lower piston 621 closes the opening 61 on the condition that the pressure of the air supplied from the main air tank 4 is smaller than the pressure of the air supplied from the wheel parking air tank 5. The lower piston 621 is disposed in the 4 th space 654.
The upper piston 622 is a member that moves the lower piston 621. Specifically, the upper end of the lower piston 621 is pressed downward by the lower end of the upper piston 622, and the upper piston 622 moves the lower piston 621. The upper piston 622 is disposed in the 3 rd space 653.
The larger the value obtained by subtracting the pressure of the air supplied from the wheel parking air tank 5 from the pressure of the air supplied from the main air tank 4, the faster the lower piston 621 moves, thereby rapidly increasing the opening degree of the opening portion 61. By providing the lower piston 621 in this manner, the brake device S can quickly increase the opening degree of the opening portion 61 by the lower piston 621 when the capacity of the main air tank 4 is larger than the capacity of the wheel parking air tank 5.
Modification example
In the above embodiment, the example in which the hole 13 is formed due to damage to the common pipeline 1 is shown, but the present invention is not limited thereto. The common line 1 may be cut off, for example, due to damage to the common line 1.
[ Effect of the brake device S of the present embodiment ]
The brake device S of the present embodiment includes: a service line 1 for passing air for operating a service brake a of the vehicle; and an emergency line 3 for passing air for operating the emergency brake C of the vehicle. The brake device S further includes: a main air box 4 for accumulating air; and a wheel parking air tank 5 that stores air supplied to the emergency line 3.
Further, the brake device S includes a switching unit 6, and the switching unit 6 includes a valve 62 for opening the opening 61 for letting the air flowing in from the emergency line 3 flow out to the normal line 1, and when the brake pedal B is depressed in a state where the normal line 1 is damaged, the valve 62 opens the opening 61 more rapidly as the value obtained by subtracting the pressure of the air supplied from the wheel parking air tank 5 from the pressure of the air supplied from the main air tank 4 increases. Furthermore, the usual line 1 has: a tube 11 having one end connected to the switching unit 6 and through which air flowing out of the switching unit 6 passes; and a connector 12 connected to the other end of the tube 11 opposite to the one end, the inner diameter being larger than that of the tube 11.
In this way, the brake device S can reduce the exhaust resistance of the line 1 for xiao Chang by the connector 12 having an inner diameter larger than the inner diameter of the pipe 11 in the normal line 1. Therefore, the brake device S can quickly flow the air flowing out of the switching portion 6 in the normal line 1, and therefore, the air flowing in from the emergency line 3 in a state where the valve 62 opens the opening portion 61 can quickly flow to the normal line 1. As a result, when the brake pedal B is depressed in a state where the service line 1 is damaged, the brake device S can rapidly actuate the emergency brake C.
The present disclosure has been described above using the embodiments, but the scope of the present disclosure is not limited to the scope described in the above embodiments, and various modifications and changes can be made within the scope of the gist thereof. For example, all or a part of the device may be functionally or physically distributed and integrated in any unit. In addition, a new embodiment produced by any combination of the plurality of embodiments is also included in the embodiments of the present disclosure. The effects of the new embodiment produced by the combination have the effects of the original embodiment.
The present application is based on the Japanese patent application filed on 27/3/2019 (Japanese patent application No. 2019-061344), the contents of which are incorporated herein by reference.
Industrial applicability
The brake device of the present disclosure is useful in that the brake can be operated promptly even if the common pipeline is damaged.
Description of the reference numerals
A service brake
B brake pedal
C emergency brake
S brake device
1. Common pipeline
11. Pipe
12. Connector with a plurality of connectors
13. Hole(s)
2. Common pipeline switching part
3. Emergency pipeline
4. Main air box
5. Wheel parking air box
6. Switching part
61. An opening part
62. Valve
621. Lower piston
622. Upper piston
63. Inflow part
631. 1 st inflow portion
632. 2 nd inflow part
633. 3 rd inflow part
634. 4 th inflow portion
64. Outflow part
641. 1 st outflow portion
65. Space of
651. 1 st space
652. Space 2
653. 3 rd space
654. Space 4
66. Elastic member
67. 1 st division plate
68. No. 2 partition plate
Claims (5)
1. A brake device, characterized by comprising:
a service line for passing air for operating a service brake of the vehicle;
an emergency line for passing air for operating an emergency brake of the vehicle;
a main air tank for storing air;
a wheel parking air tank that stores air to be supplied to the emergency line; and
a switching unit having a valve for opening an opening for allowing air flowing in from the emergency line to flow out to the normal line, wherein when a brake pedal is depressed in a state where damage occurs to the normal line, the valve opens the opening more rapidly as a value obtained by subtracting the pressure of air supplied from the main air tank from the pressure of air supplied from the wheel parking air tank increases,
the common pipeline has:
a tube having one end connected to the switching unit and through which air flowing out of the switching unit passes; and
and a connector connected to the other end of the pipe opposite to the one end, the connector having an inner diameter larger than the inner diameter of the pipe.
2. A brake apparatus according to claim 1, wherein,
the switching portion has an outflow portion from which the air flows out, and the inner diameter of the tube is larger than the diameter of the outflow portion.
3. A brake device according to claim 1 or 2, wherein,
the opening portion is opened by the valve of the switching portion, so that air flowing into the switching portion from the emergency line flows out from a hole formed by damage to the normal line.
4. A brake device according to claim 1 or 2, wherein,
the valve has:
a lower piston for changing the opening degree of the opening portion; and
an upper piston that moves the lower piston,
the lower piston opens the opening portion on condition that a pressure of air supplied from the main air tank is greater than a pressure of air supplied from the wheel parking air tank.
5. A brake apparatus according to claim 4, wherein,
the larger the value obtained by subtracting the pressure of the air supplied from the main air tank from the pressure of the air supplied from the wheel parking air tank, the more rapidly the lower piston moves, thereby rapidly increasing the opening degree.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019-061344 | 2019-03-27 | ||
| JP2019061344A JP7140027B2 (en) | 2019-03-27 | 2019-03-27 | brake device |
| PCT/JP2020/012920 WO2020196485A1 (en) | 2019-03-27 | 2020-03-24 | Brake device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113613970A CN113613970A (en) | 2021-11-05 |
| CN113613970B true CN113613970B (en) | 2023-06-27 |
Family
ID=72610993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202080022614.3A Active CN113613970B (en) | 2019-03-27 | 2020-03-24 | Braking device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP7140027B2 (en) |
| CN (1) | CN113613970B (en) |
| WO (1) | WO2020196485A1 (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2317509A1 (en) * | 1973-04-07 | 1974-10-17 | Graubremse Gmbh | TRAILER BRAKE VALVE FOR TWO-LINE COMPRESSION BRAKE SYSTEMS IN VEHICLE TRAILERS |
| FR2224329A1 (en) * | 1973-04-07 | 1974-10-31 | Graubremse Gmbh | Dual circuit brake circuit braking valve - uses spring loaded pistons responsive to reservoir and brake pressures |
| DE2326708A1 (en) * | 1973-05-25 | 1974-12-12 | Graubremse Gmbh | A TRAILER BRAKE VALVE SPECIFICALLY FOR TWO-CIRCUIT TRAILER BRAKING |
| FR2286036A1 (en) * | 1974-09-27 | 1976-04-23 | Graubremse Gmbh | Trailer double braking circuit valve - has emergency braking piston operated by auxiliary pipeline without air loss |
| US4017125A (en) * | 1975-09-09 | 1977-04-12 | Midland-Ross Corporation | Inversion brake valve and system therefor |
| JPS5935155U (en) * | 1982-08-30 | 1984-03-05 | 日野自動車株式会社 | Emergency brake device for trailer service line |
| JPH1120676A (en) * | 1997-07-02 | 1999-01-26 | Hino Motors Ltd | Braking device of tractor |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS3725130Y1 (en) * | 1959-12-04 | 1962-09-20 | ||
| JPS5521879Y2 (en) * | 1975-02-13 | 1980-05-26 | ||
| JPS58128163U (en) * | 1982-02-24 | 1983-08-30 | 株式会社小松製作所 | Vehicle brake device |
| JP3725130B2 (en) | 2003-02-26 | 2005-12-07 | 幸雄 池田 | Detachable structure for removable partial dentures |
| JP5935155B2 (en) | 2014-03-20 | 2016-06-15 | 株式会社Ｌｉｋｅ Ｔｏｄｏ Ｊａｐａｎ製薬 | Method for producing anti-glycation agent |
-
2019
- 2019-03-27 JP JP2019061344A patent/JP7140027B2/en active Active
-
2020
- 2020-03-24 WO PCT/JP2020/012920 patent/WO2020196485A1/en active Application Filing
- 2020-03-24 CN CN202080022614.3A patent/CN113613970B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2317509A1 (en) * | 1973-04-07 | 1974-10-17 | Graubremse Gmbh | TRAILER BRAKE VALVE FOR TWO-LINE COMPRESSION BRAKE SYSTEMS IN VEHICLE TRAILERS |
| FR2224329A1 (en) * | 1973-04-07 | 1974-10-31 | Graubremse Gmbh | Dual circuit brake circuit braking valve - uses spring loaded pistons responsive to reservoir and brake pressures |
| DE2326708A1 (en) * | 1973-05-25 | 1974-12-12 | Graubremse Gmbh | A TRAILER BRAKE VALVE SPECIFICALLY FOR TWO-CIRCUIT TRAILER BRAKING |
| FR2286036A1 (en) * | 1974-09-27 | 1976-04-23 | Graubremse Gmbh | Trailer double braking circuit valve - has emergency braking piston operated by auxiliary pipeline without air loss |
| US4017125A (en) * | 1975-09-09 | 1977-04-12 | Midland-Ross Corporation | Inversion brake valve and system therefor |
| JPS5935155U (en) * | 1982-08-30 | 1984-03-05 | 日野自動車株式会社 | Emergency brake device for trailer service line |
| JPH1120676A (en) * | 1997-07-02 | 1999-01-26 | Hino Motors Ltd | Braking device of tractor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP7140027B2 (en) | 2022-09-21 |
| JP2020158016A (en) | 2020-10-01 |
| CN113613970A (en) | 2021-11-05 |
| WO2020196485A1 (en) | 2020-10-01 |
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