GB2186929A - Over-run hydraulic braking system - Google Patents

Over-run hydraulic braking system Download PDF

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Publication number
GB2186929A
GB2186929A GB08520159A GB8520159A GB2186929A GB 2186929 A GB2186929 A GB 2186929A GB 08520159 A GB08520159 A GB 08520159A GB 8520159 A GB8520159 A GB 8520159A GB 2186929 A GB2186929 A GB 2186929A
Authority
GB
United Kingdom
Prior art keywords
braking
vehicle
hydraulic
towing vehicle
self
Prior art date
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.)
Withdrawn
Application number
GB08520159A
Other versions
GB8520159D0 (en
Inventor
Rajinder Singh Mudher
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB08520159A priority Critical patent/GB2186929A/en
Publication of GB8520159D0 publication Critical patent/GB8520159D0/en
Publication of GB2186929A publication Critical patent/GB2186929A/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
    • B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
    • B60T11/107—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic overrun brakes with fluid means
    • 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
    • B60T7/00—Brake-action initiating means
    • B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
    • B60T7/20—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger specially for trailers, e.g. in case of uncoupling of or overrunning by trailer
    • B60T7/203—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger specially for trailers, e.g. in case of uncoupling of or overrunning by trailer with automatic brake release or reduction in case of reverse travel, e.g. by means of mechanisms mounted on the draw bar

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Braking Systems And Boosters (AREA)

Abstract

An over-run hydraulic braking system for a towed vehicle consisting of a ball joint, hydraulic cylinders and an electromagnetic switch. The hydraulic cylinders are low pressure and high pressure for jerky traffic type of situation and emergency braking respectively. The electromagnetic switch which is operable during reversing to close a valve in the brake pipe, is linked to the electrical signal from the reversing lights of the towing vehicle. The system provides a braking system for the towed vehicle separate from that of the towing vehicle. <IMAGE>

Description

SPECIFICATION Self Braking Hydraulic System Unit The invention relates to a self braking system for a towed vehicle. The current practise is that the towed vehicle does not have any braking means of its own and is totally dependent upon the brakes of the towing vehicle. Presented here is an independent braking system for a towed caravan, trailer or any other vehicle. The unit is mounted with four fastening points on the centre of the hitch.
According to the present invention as soon as the towing vehicle stops or slows down, the towed vehicle brake cylinder plunger is pushed and the braking action takes place. The hydraulic cylinder is of dual pressure type, low and high pressure, the low pressure action is required for traffic situation to avoid jerky motion and the high pressure action is necessary for harder and emergency braking.
The specific embodiment of the invention is described with reference to the accompanying drawing. The drawing shows the sectional elevation ofthe self braking hydraulic system, layout.
Consisting of, the low and high pressure chamber, the hitching ball joint, the electromagnetic switch, and hydraulic connections.
The release of braking action is automatic once the towing vehicle accelerates hereby pulling the main shaft away from the plunger. The controlled pressure from the pressure chambers is passed through the electromagnetic switch, which cuts off the hydraulic fluid flow, during reversing.
The electro-magnetic switch, is wired through the reversing lights layout, and the switch is automatically activated, when the towing vehicle shifts into reverse during parking.
The self braking system on a towed vehicle would be particuiarly useful during a downhill run. The force of the towed vehicle onto the towing vehicle would activate the braking system of the former thereby taking some of braking load independently.
This is safety factor and is particularly useful in poor weather.
1. A self braking hydraulic system unit for a towed vehicle comprising a hitching joint, hydraulic pressure chambers and electromagnetic switch operated by an electrical signal from the towing vehicle reversing lights. The arrangement enables the toward vehicle to have its own braking system.
The unit is mounted on the centre of the hitch.
2. A self braking hydraulic system as claimed in Claim 1 has hydraulic cylinders of dual pressure type for jerky motion and for harder emergency braking respectively.
3. A self braking hydraulic system as claimed in Claim 2 incorporates an electromagnetic switch which operates in conjunction with the towing vehicle reversing lights to cut out the hydraulic fluid flow during reversing.
4. A self braking hydraulic system for a toward vehicle substantially as described herein with reference to Fig. 1 of accompanying drawings 1/1.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (4)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Self Braking Hydraulic System Unit The invention relates to a self braking system for a towed vehicle. The current practise is that the towed vehicle does not have any braking means of its own and is totally dependent upon the brakes of the towing vehicle. Presented here is an independent braking system for a towed caravan, trailer or any other vehicle. The unit is mounted with four fastening points on the centre of the hitch. According to the present invention as soon as the towing vehicle stops or slows down, the towed vehicle brake cylinder plunger is pushed and the braking action takes place. The hydraulic cylinder is of dual pressure type, low and high pressure, the low pressure action is required for traffic situation to avoid jerky motion and the high pressure action is necessary for harder and emergency braking. The specific embodiment of the invention is described with reference to the accompanying drawing. The drawing shows the sectional elevation ofthe self braking hydraulic system, layout. Consisting of, the low and high pressure chamber, the hitching ball joint, the electromagnetic switch, and hydraulic connections. The release of braking action is automatic once the towing vehicle accelerates hereby pulling the main shaft away from the plunger. The controlled pressure from the pressure chambers is passed through the electromagnetic switch, which cuts off the hydraulic fluid flow, during reversing. The electro-magnetic switch, is wired through the reversing lights layout, and the switch is automatically activated, when the towing vehicle shifts into reverse during parking. The self braking system on a towed vehicle would be particuiarly useful during a downhill run. The force of the towed vehicle onto the towing vehicle would activate the braking system of the former thereby taking some of braking load independently. This is safety factor and is particularly useful in poor weather. CLAIMS
1. A self braking hydraulic system unit for a towed vehicle comprising a hitching joint, hydraulic pressure chambers and electromagnetic switch operated by an electrical signal from the towing vehicle reversing lights. The arrangement enables the toward vehicle to have its own braking system.
The unit is mounted on the centre of the hitch.
2. A self braking hydraulic system as claimed in Claim 1 has hydraulic cylinders of dual pressure type for jerky motion and for harder emergency braking respectively.
3. A self braking hydraulic system as claimed in Claim 2 incorporates an electromagnetic switch which operates in conjunction with the towing vehicle reversing lights to cut out the hydraulic fluid flow during reversing.
4. A self braking hydraulic system for a toward vehicle substantially as described herein with reference to Fig. 1 of accompanying drawings 1/1.
GB08520159A 1985-08-12 1985-08-12 Over-run hydraulic braking system Withdrawn GB2186929A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08520159A GB2186929A (en) 1985-08-12 1985-08-12 Over-run hydraulic braking system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08520159A GB2186929A (en) 1985-08-12 1985-08-12 Over-run hydraulic braking system

Publications (2)

Publication Number Publication Date
GB8520159D0 GB8520159D0 (en) 1985-09-18
GB2186929A true GB2186929A (en) 1987-08-26

Family

ID=10583647

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08520159A Withdrawn GB2186929A (en) 1985-08-12 1985-08-12 Over-run hydraulic braking system

Country Status (1)

Country Link
GB (1) GB2186929A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4842340A (en) * 1987-04-30 1989-06-27 Alfred Teves Gmbh Brake for a vehicle trailer
WO1990009913A1 (en) * 1989-02-23 1990-09-07 Groenlund Rune Hydraulic braking device
US5232271A (en) * 1992-02-05 1993-08-03 Caterpillar Inc. Brake system for automatic disablement of towed vehicle brakes during backing
US5246243A (en) * 1992-01-13 1993-09-21 Burns Family Living Trust Towing vehicle mounted receiver hitch actuating a towed vehicle's brake system
GB2358446A (en) * 2000-01-22 2001-07-25 Bradley Doublelock Ltd Deactivating a trailer brake during reversing
GB2385102B (en) * 2001-12-22 2004-06-02 Brooks Alan M Brake auto reverse device
NL1041114B1 (en) * 2014-12-19 2016-10-11 Wierink Jaap Locking and energizing device for a inertia braking system of a trailer.
CN108839569A (en) * 2018-08-28 2018-11-20 毛琦 A kind of brake of trailer and acceleration system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB411103A (en) * 1932-11-29 1934-05-29 Cecil Vandepeer Clarke Improvements in or relating to brake operating mechanism for use with trailers
GB1454628A (en) * 1973-10-23 1976-11-03 Bendix Corp Surge brake actuator

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB411103A (en) * 1932-11-29 1934-05-29 Cecil Vandepeer Clarke Improvements in or relating to brake operating mechanism for use with trailers
GB1454628A (en) * 1973-10-23 1976-11-03 Bendix Corp Surge brake actuator

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4842340A (en) * 1987-04-30 1989-06-27 Alfred Teves Gmbh Brake for a vehicle trailer
WO1990009913A1 (en) * 1989-02-23 1990-09-07 Groenlund Rune Hydraulic braking device
US5246243A (en) * 1992-01-13 1993-09-21 Burns Family Living Trust Towing vehicle mounted receiver hitch actuating a towed vehicle's brake system
US5232271A (en) * 1992-02-05 1993-08-03 Caterpillar Inc. Brake system for automatic disablement of towed vehicle brakes during backing
GB2358446A (en) * 2000-01-22 2001-07-25 Bradley Doublelock Ltd Deactivating a trailer brake during reversing
GB2358446B (en) * 2000-01-22 2004-06-30 Bradley Doublelock Ltd Brake control mechanism
GB2385102B (en) * 2001-12-22 2004-06-02 Brooks Alan M Brake auto reverse device
NL1041114B1 (en) * 2014-12-19 2016-10-11 Wierink Jaap Locking and energizing device for a inertia braking system of a trailer.
CN108839569A (en) * 2018-08-28 2018-11-20 毛琦 A kind of brake of trailer and acceleration system

Also Published As

Publication number Publication date
GB8520159D0 (en) 1985-09-18

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)