Overrun brake - Revision history

AlphaLemur: Added image #app-image-add-top

2024-08-06T07:24:44Z

Added image #app-image-add-top

← Previous revision		Revision as of 07:24, 6 August 2024
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	{{No footnotes\|date=July 2011}}		{{No footnotes\|date=July 2011}}
			[[File:Anhaenger_feststellbremse_01.jpg \| thumb \| right]]
	An '''overrun brake''' (called a '''surge brake''' when invented) is a [[brake]] system commonly used on small [[trailer (vehicle)\|trailers]], where the motion of the trailer with respect to the towing vehicle is used to actuate the brake.		An '''overrun brake''' (called a '''surge brake''' when invented) is a [[brake]] system commonly used on small [[trailer (vehicle)\|trailers]], where the motion of the trailer with respect to the towing vehicle is used to actuate the brake.

Citation bot: Misc citation tidying. | Use this bot. Report bugs. | Suggested by AManWithNoPlan | #UCB_CommandLine

2023-03-17T20:56:46Z

Misc citation tidying. | Use this bot. Report bugs. | Suggested by AManWithNoPlan | #UCB_CommandLine

← Previous revision		Revision as of 20:56, 17 March 2023
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	* [http://www.freepatentsonline.com/EP0587217.html freepatentsonline.com]		* [http://www.freepatentsonline.com/EP0587217.html freepatentsonline.com]
	* [http://www.freepatentsonline.com/EP0324990.html freepatentsonline.com]		* [http://www.freepatentsonline.com/EP0324990.html freepatentsonline.com]
	* [https://books.google.com/books?id=FyoDAAAAMBAJ~~&pg=PA111~~&dq=popular+science+1930&hl=~~en&sa=X&ei=4EH4TvrBEcbEgQfxu5ykAg&ved=0CDMQ6AEwADhu#v=onepage&q&f=true~~ "What You Should Know About Trailer Brakes."] ''Popular Science'', July 1969, pp. 111–113		* [https://books.google.com/books?id=FyoDAAAAMBAJ&dq=popular+science+1930&pg=PA111 "What You Should Know About Trailer Brakes."] ''Popular Science'', July 1969, pp. 111–113

	[[Category:Brakes]]		[[Category:Brakes]]

Iridescent: /* top */Cleanup and typo fixing, typo(s) fixed: won’t → won't, you’re → you're

2020-03-07T22:08:05Z

top: Cleanup and typo fixing, typo(s) fixed: won’t → won't, you’re → you're

← Previous revision		Revision as of 22:08, 7 March 2020
Line 8:		Line 8:
	Some systems have a ball hitch that is normally straight, but when the lead vehicle starts braking, the trailer pushes forward on the ball hitch, pitching it up which then activates a variable [[Hydraulic brake\|hydraulic brake system]]. Upon activating the trailer slows down pulling back on the hitch again, making it level then that shuts off the braking system.		Some systems have a ball hitch that is normally straight, but when the lead vehicle starts braking, the trailer pushes forward on the ball hitch, pitching it up which then activates a variable [[Hydraulic brake\|hydraulic brake system]]. Upon activating the trailer slows down pulling back on the hitch again, making it level then that shuts off the braking system.

	Some systems may also have a switch that disables the system so the brakes ~~won’t~~ lock while ~~you’re~~ backing up. Other systems take the backup lamp input from the lead vehicle that shuts the system off automatically.		Some systems may also have a switch that disables the system so the brakes won't lock while you're backing up. Other systems take the backup lamp input from the lead vehicle that shuts the system off automatically.

	== Common Uses ==		== Common Uses ==

Ira Leviton: Therefore,the->Therefore, the - Fix a typo in one click

2020-01-15T13:54:42Z

Therefore,the->Therefore, the - Fix a typo in one click

← Previous revision		Revision as of 13:54, 15 January 2020
Line 4:		Line 4:
	The early systems were fitted with a spring system which was not very effective.		The early systems were fitted with a spring system which was not very effective.

	Later systems were fitted with a sliding mechanism within the coupling, which enables the drawbar to move back and forth relative to the trailer chassis. When the towing vehicle brakes, the inertia of the trailer slides the mechanism, this in turn uses the travel of this mechanism to pull on the brake rod which applies the brakes. The sliding mechanism contains a damper to even out the shock loading transmitted from the tow vehicle. Therefore,the inertia of the trailer provides the force to apply the brakes.		Later systems were fitted with a sliding mechanism within the coupling, which enables the drawbar to move back and forth relative to the trailer chassis. When the towing vehicle brakes, the inertia of the trailer slides the mechanism, this in turn uses the travel of this mechanism to pull on the brake rod which applies the brakes. The sliding mechanism contains a damper to even out the shock loading transmitted from the tow vehicle. Therefore, the inertia of the trailer provides the force to apply the brakes.

	Some systems have a ball hitch that is normally straight, but when the lead vehicle starts braking, the trailer pushes forward on the ball hitch, pitching it up which then activates a variable [[Hydraulic brake\|hydraulic brake system]]. Upon activating the trailer slows down pulling back on the hitch again, making it level then that shuts off the braking system.		Some systems have a ball hitch that is normally straight, but when the lead vehicle starts braking, the trailer pushes forward on the ball hitch, pitching it up which then activates a variable [[Hydraulic brake\|hydraulic brake system]]. Upon activating the trailer slows down pulling back on the hitch again, making it level then that shuts off the braking system.

75.169.7.189: /* Common Uses */Fixed typo Changed "quipped" to "equipped"

2019-05-27T16:43:48Z

Common Uses: Fixed typo Changed "quipped" to "equipped"

← Previous revision		Revision as of 16:43, 27 May 2019
Line 11:		Line 11:

	== Common Uses ==		== Common Uses ==
	There are many uses for such a braking system, but they are commonly sold as kits for medium weight trailers or rental trailers and used for trailers in the marine environment. They are often used on [[Boat trailer\|boat trailers]] (typically above 2000lbs or 907kg) instead of electrical brakes as electrical brakes can both get shorted out in the water when not properly sealed and most vehicles towing medium weight trailers will not have an [[Electric friction brake\|electrical braking system]] equipped. Surge brakes easily fill the gap of heavy enough to have brakes, but light enough not to require a more advanced braking systems that vehicles towing these kinds of trailers would not be ~~quipped~~ with. That same rule applies to both the commonly sold kits and the rental trailers.		There are many uses for such a braking system, but they are commonly sold as kits for medium weight trailers or rental trailers and used for trailers in the marine environment. They are often used on [[Boat trailer\|boat trailers]] (typically above 2000lbs or 907kg) instead of electrical brakes as electrical brakes can both get shorted out in the water when not properly sealed and most vehicles towing medium weight trailers will not have an [[Electric friction brake\|electrical braking system]] equipped. Surge brakes easily fill the gap of heavy enough to have brakes, but light enough not to require a more advanced braking systems that vehicles towing these kinds of trailers would not be equipped with. That same rule applies to both the commonly sold kits and the rental trailers.

	==Issues==		==Issues==

Dougc-3: I inserted ", which" in the first line of the third paragraph, correcting an apparent typographical error.

2019-05-12T21:23:38Z

I inserted ", which" in the first line of the third paragraph, correcting an apparent typographical error.

← Previous revision		Revision as of 21:23, 12 May 2019
Line 4:		Line 4:
	The early systems were fitted with a spring system which was not very effective.		The early systems were fitted with a spring system which was not very effective.

	Later systems were fitted with a sliding mechanism within the coupling enables the drawbar to move back and forth relative to the trailer chassis. When the towing vehicle brakes, the inertia of the trailer slides the mechanism, this in turn uses the travel of this mechanism to pull on the brake rod which applies the brakes. The sliding mechanism contains a damper to even out the shock loading transmitted from the tow vehicle. Therefore,the inertia of the trailer provides the force to apply the brakes.		Later systems were fitted with a sliding mechanism within the coupling, which enables the drawbar to move back and forth relative to the trailer chassis. When the towing vehicle brakes, the inertia of the trailer slides the mechanism, this in turn uses the travel of this mechanism to pull on the brake rod which applies the brakes. The sliding mechanism contains a damper to even out the shock loading transmitted from the tow vehicle. Therefore,the inertia of the trailer provides the force to apply the brakes.

	Some systems have a ball hitch that is normally straight, but when the lead vehicle starts braking, the trailer pushes forward on the ball hitch, pitching it up which then activates a variable [[Hydraulic brake\|hydraulic brake system]]. Upon activating the trailer slows down pulling back on the hitch again, making it level then that shuts off the braking system.		Some systems have a ball hitch that is normally straight, but when the lead vehicle starts braking, the trailer pushes forward on the ball hitch, pitching it up which then activates a variable [[Hydraulic brake\|hydraulic brake system]]. Upon activating the trailer slows down pulling back on the hitch again, making it level then that shuts off the braking system.

131.89.194.2 at 21:53, 4 April 2019

2019-04-04T21:53:24Z

← Previous revision		Revision as of 21:53, 4 April 2019
Line 6:		Line 6:
	Later systems were fitted with a sliding mechanism within the coupling enables the drawbar to move back and forth relative to the trailer chassis. When the towing vehicle brakes, the inertia of the trailer slides the mechanism, this in turn uses the travel of this mechanism to pull on the brake rod which applies the brakes. The sliding mechanism contains a damper to even out the shock loading transmitted from the tow vehicle. Therefore,the inertia of the trailer provides the force to apply the brakes.		Later systems were fitted with a sliding mechanism within the coupling enables the drawbar to move back and forth relative to the trailer chassis. When the towing vehicle brakes, the inertia of the trailer slides the mechanism, this in turn uses the travel of this mechanism to pull on the brake rod which applies the brakes. The sliding mechanism contains a damper to even out the shock loading transmitted from the tow vehicle. Therefore,the inertia of the trailer provides the force to apply the brakes.

	Some systems have a ball hitch that is normally straight, but when the lead vehicle starts braking, the trailer pushes forward on the ball hitch, pitching it up ~~witch~~ then activates a variable [[Hydraulic brake\|hydraulic brake system]]. Upon activating the trailer slows down pulling back on the hitch again, making it level then that shuts off the braking system.		Some systems have a ball hitch that is normally straight, but when the lead vehicle starts braking, the trailer pushes forward on the ball hitch, pitching it up which then activates a variable [[Hydraulic brake\|hydraulic brake system]]. Upon activating the trailer slows down pulling back on the hitch again, making it level then that shuts off the braking system.

	Some systems may also have a switch that disables the system so the brakes won’t lock while you’re backing up. Other systems take the backup lamp input from the lead vehicle that shuts the system off automatically.		Some systems may also have a switch that disables the system so the brakes won’t lock while you’re backing up. Other systems take the backup lamp input from the lead vehicle that shuts the system off automatically.

Ksinkar: /* Issues */ First world is a vague term. Making it more precise.

2019-03-03T20:45:09Z

Issues: First world is a vague term. Making it more precise.

← Previous revision		Revision as of 20:45, 3 March 2019
Line 24:		Line 24:
	The problem can be eliminated by minimising slack spring travel, and by reducing the amount of trailer braking force applied for a given drawbar force. However this results in the towing vehicle bearing some of the trailer braking load, something the towing vehicle is often not designed to do. The result is compromised braking.		The problem can be eliminated by minimising slack spring travel, and by reducing the amount of trailer braking force applied for a given drawbar force. However this results in the towing vehicle bearing some of the trailer braking load, something the towing vehicle is often not designed to do. The result is compromised braking.

	Because of its issues, all ~~first world~~ countries limit the maximum road legal towable weight (UK up to 3500kg or 7716lbs) using such a braking system.		Because of its issues, all OECD countries limit the maximum road legal towable weight (UK up to 3500kg or 7716lbs) using such a braking system.
	The newer damped systems operate more effectively and are not prone to the same problems as the spring systems.		The newer damped systems operate more effectively and are not prone to the same problems as the spring systems.

Narky Blert: Link to DAB page repaired. ce

2018-10-02T16:42:23Z

Link to DAB page repaired. ce

← Previous revision		Revision as of 16:42, 2 October 2018
Line 11:		Line 11:

	== Common Uses ==		== Common Uses ==
	There are many uses for such a braking system, but they are commonly sold as kits for medium weight trailers or rental trailers and used for trailers in the marine environment. They are often used on [[Boat trailer\|boat trailers]] (typically above 2000lbs or 907kg) instead of electrical brakes as electrical brakes can both get shorted out in the water when not properly sealed and most vehicles towing medium weight trailers ~~won't~~ have an [[Electric brake\|electrical braking system]] equipped. Surge brakes easily fill the gap of heavy enough to have brakes, but light enough not to require a more advanced braking systems that vehicles towing these kinds of trailers would not be quipped with. That same rule applies to both the commonly sold kits and the rental trailers.		There are many uses for such a braking system, but they are commonly sold as kits for medium weight trailers or rental trailers and used for trailers in the marine environment. They are often used on [[Boat trailer\|boat trailers]] (typically above 2000lbs or 907kg) instead of electrical brakes as electrical brakes can both get shorted out in the water when not properly sealed and most vehicles towing medium weight trailers will not have an [[Electric friction brake\|electrical braking system]] equipped. Surge brakes easily fill the gap of heavy enough to have brakes, but light enough not to require a more advanced braking systems that vehicles towing these kinds of trailers would not be quipped with. That same rule applies to both the commonly sold kits and the rental trailers.

	==Issues==		==Issues==

Eli TLP: Added a common uses section. (Wasn't there before and I felt like this page may benefit from this as it doesn't have any other info on this) And added a pounds conversion to the bottom section describing the maximum weight for such trailers equipped with this system is allowed in the EU.

2018-09-22T04:32:41Z

Added a common uses section. (Wasn't there before and I felt like this page may benefit from this as it doesn't have any other info on this) And added a pounds conversion to the bottom section describing the maximum weight for such trailers equipped with this system is allowed in the EU.

← Previous revision		Revision as of 04:32, 22 September 2018
Line 9:		Line 9:

	Some systems may also have a switch that disables the system so the brakes won’t lock while you’re backing up. Other systems take the backup lamp input from the lead vehicle that shuts the system off automatically.		Some systems may also have a switch that disables the system so the brakes won’t lock while you’re backing up. Other systems take the backup lamp input from the lead vehicle that shuts the system off automatically.

			== Common Uses ==
			There are many uses for such a braking system, but they are commonly sold as kits for medium weight trailers or rental trailers and used for trailers in the marine environment. They are often used on [[Boat trailer\|boat trailers]] (typically above 2000lbs or 907kg) instead of electrical brakes as electrical brakes can both get shorted out in the water when not properly sealed and most vehicles towing medium weight trailers won't have an [[Electric brake\|electrical braking system]] equipped. Surge brakes easily fill the gap of heavy enough to have brakes, but light enough not to require a more advanced braking systems that vehicles towing these kinds of trailers would not be quipped with. That same rule applies to both the commonly sold kits and the rental trailers.

	==Issues==		==Issues==
Line 21:		Line 24:
	The problem can be eliminated by minimising slack spring travel, and by reducing the amount of trailer braking force applied for a given drawbar force. However this results in the towing vehicle bearing some of the trailer braking load, something the towing vehicle is often not designed to do. The result is compromised braking.		The problem can be eliminated by minimising slack spring travel, and by reducing the amount of trailer braking force applied for a given drawbar force. However this results in the towing vehicle bearing some of the trailer braking load, something the towing vehicle is often not designed to do. The result is compromised braking.

	Because of its issues, all first world countries limit the maximum road legal towable weight (UK up to ~~3500 kg~~) using such a braking system.		Because of its issues, all first world countries limit the maximum road legal towable weight (UK up to 3500kg or 7716lbs) using such a braking system.
	The newer damped systems operate more effectively and are not prone to the same problems as the spring systems.		The newer damped systems operate more effectively and are not prone to the same problems as the spring systems.

← Previous revision		Revision as of 07:24, 6 August 2024
Line 1:		Line 1:
	{{No footnotes\|date=July 2011}}		{{No footnotes\|date=July 2011}}
			[[File:Anhaenger_feststellbremse_01.jpg \| thumb \| right]]
	An '''overrun brake''' (called a '''surge brake''' when invented) is a [[brake]] system commonly used on small [[trailer (vehicle)\|trailers]], where the motion of the trailer with respect to the towing vehicle is used to actuate the brake.		An '''overrun brake''' (called a '''surge brake''' when invented) is a [[brake]] system commonly used on small [[trailer (vehicle)\|trailers]], where the motion of the trailer with respect to the towing vehicle is used to actuate the brake.