WO2017079797A1 - Mécanisme de freinage d'urgence - Google Patents

Mécanisme de freinage d'urgence Download PDF

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Publication number
WO2017079797A1
WO2017079797A1 PCT/AU2016/051076 AU2016051076W WO2017079797A1 WO 2017079797 A1 WO2017079797 A1 WO 2017079797A1 AU 2016051076 W AU2016051076 W AU 2016051076W WO 2017079797 A1 WO2017079797 A1 WO 2017079797A1
Authority
WO
WIPO (PCT)
Prior art keywords
vehicle
engaging member
ground engaging
braking system
braking
Prior art date
Application number
PCT/AU2016/051076
Other languages
English (en)
Inventor
Manuel Vieira Barreiro
Original Assignee
Manuel Vieira Barreiro
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
Priority claimed from AU2015904636A external-priority patent/AU2015904636A0/en
Application filed by Manuel Vieira Barreiro filed Critical Manuel Vieira Barreiro
Publication of WO2017079797A1 publication Critical patent/WO2017079797A1/fr

Links

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
    • B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
    • B60T1/12—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting otherwise than by retarding wheels, e.g. jet action
    • B60T1/14—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting otherwise than by retarding wheels, e.g. jet action directly on road

Definitions

  • the present invention relates to emergency braking mechanisms for vehicles including cars, trailers, buses and trucks, deployable when regular brakes fail. It is considered applicable to general commuter vehicles, trailers, semi-trailers and other road vehicles.
  • the present invention proposes to supplement an existing vehicle braking system with an independent back-up emergency braking system.
  • a braking system for a vehicle including a flexible ground engaging member, the ground engaging member being movable between a stowed position in which the ground engaging member is not in contact with wheels of the vehicle, and a deployed position wherein the ground engaging member locates between the ground and the vehicle wheels.
  • the vehicle includes wheels located on two parallel axles with an axle group, and that in its deployed position the ground engaging member may locate under vehicle wheels of a first axle if the vehicle is moving in a forward direction and under vehicle wheels of a second axle if the vehicle is moving in a reverse direction.
  • the ground engaging member is connected to a chassis of the vehicle. It is further preferred that force distributing and shock absorbing members such as springs or rubber straps are located between the chassis and the ground engaging member.
  • the ground engaging member may be fixed to a rigid plate.
  • the plate may be pivotally mounted to the vehicle chassis about a pivot axis such that movement of the ground engaging member between the stowed position and the deployed position is effected by rotation of the plate about the pivot axis.
  • the plate may include a first plate portion mounted to the vehicle chassis and a second plate portion fixed to the ground engaging member.
  • the first and second plate portion may be hinged in relation to each other.
  • the force distributing members may be tension springs located between the vehicle chassis and the plate. Alternatively, the force
  • distributing members may be compression springs arranged to act against the plate when the ground engaging member is in the deployed position.
  • the force distributing member may be a torsion spring mounted to the ground engaging member.
  • a method for braking a vehicle including the steps of releasing a ground engaging member from a deployed position and positioning the ground engaging member between vehicle wheels and the ground.
  • the invention described is able to provide a standby emergency backup system for road transport, able to be deployed in the event of brake failure.
  • the system is envisaged as one used for safety and lifesaving manoeuvres when other systems have failed.
  • the system causes the traction rear wheel of heavy vehicles as well as the running free wheels of trailers to stop turning on the ground once the mechanism is deployed.
  • the braking system may be moved from the deployed position back into the stowed position by winching, either manually or by use of a motorised winch, such as one positioned on the vehicle chassis.
  • the ground engaging member may be made from a rubber material similar to tyres, from conveyor belt material, clothed canvas, chain span, metal strips mat, ropes, polyester or any other suitable material.
  • the ground engaging member may include friction enhancing elements on the ground side thereof, such as spikes.
  • the ground engaging member may be deployed through the operation of an operating level located within a cab of the vehicle.
  • an electrically activated switch may be located within the vehicle cab, linked through electrical activation mechanism such as a solenoid. There may be an additional lever or switch provided outside the vehicle, for use in preventing rolling of a parked vehicle.
  • the braking system described herein may be manufactured within the vehicle, or may be added to existing vehicles in a retrofit.
  • deployment of the ground engaging member triggers hazard warning devices such as the vehicle horn and hazard lights.
  • Figure 1 is a front view of a vehicle having a braking system in accordance with the present invention, shown in the stowed position;
  • Figure 2 is a side view of a portion of the vehicle of Figure 1 ;
  • Figure 3 is a schematic isometric view of the vehicle of Figure 1 ;
  • Figure 4 is an isometric view of a portion of the chassis of the vehicle of Figure 1 ;
  • Figure 5 is a side view of a portion of the vehicle of Figure 1 , shown with the braking system in the deployed position;
  • Figure 6 is a front view of the vehicle of Figure 5;
  • Figure 7 is an isometric view of a portion of the chassis of the vehicle of Figure 5;
  • Figure 8 is a side view of a portion of the vehicle of Figure 1 , shown with the braking system in the deployed position;
  • FIG. 9 is a lower perspective of another vehicle having a braking system in accordance with the present invention, this braking system being arranged for use with a dual axle configuration;
  • Figure 10 is a perspective of the vehicle of Figure 10, shown with the braking system in the deployed configuration;
  • Figure 1 1 is a cross section through a pin within the braking system of Figure 1 ;
  • Figure 12 is a schematic side view of an alternative embodiment of a braking system in accordance with the present invention, shown in a stowed configuration;
  • Figure 13 is a schematic side view of the braking system of Figure 12, shown in a deployed configuration;
  • Figure 14 is a schematic side view of a further alternative braking system in accordance with the present invention.
  • Figure 15 is schematic plan view of a two-piece connecting plate within the braking system of Figure 14;
  • Figure 16 is a schematic side view of another braking system in accordance with the present invention.
  • Figure 17 shows a variation of the system of Figure 16
  • Figure 18 is a schematic side view of another braking system in accordance with the present invention.
  • Figure 19 is a schematic side view of a further braking system in accordance with the present invention.
  • Figure 20 is a schematic side view of a wheel elevating system using the principles of the braking system of the present invention.
  • FIG. 1 to 4 there is shown a vehicle chassis 10 having two wheels 12 mounted on a single axle.
  • An emergency braking system 20 is located in front of the wheels 12.
  • the emergency braking system 20 includes an anchoring axle 22 fixed to the vehicle chassis 10, attached to either end of which is a braking portion 24.
  • Each braking portion has a plurality of force distributing members being springs 26 extending generally upwardly of the anchoring axle 22 to a coupling 28.
  • the couplings 28 are releasably mounted to the chassis 10 via a release mechanism 30.
  • Each coupling 28 has a ground engaging member being a strap 32 hanging therefrom.
  • the strap 32 is sized such that its free lower end is above ground level when in the stowed position shown in Figures 1 to 4.
  • the strap 32 is located directly in front of a wheel 12.
  • Each coupling 28 is held in position by a pin 34.
  • the pins 34 are connected via wires 36 through pulleys 38 to a release wire 40.
  • the release wire 40 is mounted to a lever in cab of the vehicle (not shown).
  • Figures 9 and 10 show the braking system 20 when used with a dual axle vehicle 44.
  • Figure 1 1 is a cross section through the pin 34. It will be appreciated that although the pin 34 has been described as being released by a wire, it is equally possible that the pin 34 is connected to a solenoid, whereby a switch in the vehicle cab electrically operates the solenoid to release the pin.
  • FIGS 12 and 13 show an alternative braking system 50 used with a dual axle vehicle 52.
  • one anchoring axle 22 is located in front of the wheels 12, and another between the wheel 12 (that is, between the two axles).
  • the strap 32 is fixed to a rigid plate 54.
  • the rigid plate 54 extends generally horizontally from the anchoring axle 22, to a coupling 28.
  • Springs 26 are mounted between the plate 54 and an anchor point 56 on the vehicle chassis.
  • the plates 54 are able to rotate about their anchoring axles 22, thus lowering the straps 32 into a deployed position.
  • the springs 26 act to provide shock absorption capability.
  • this embodiment will provide emergency braking not only in the forward direction, but also in the rear direction.
  • Figure 14 shows a braking system 60 which is generally similar to the braking system 50, but within which the plate 54 has been replaced with a two-piece connecting plate 64.
  • the two-piece connecting plate 64 which can be seen in Figure 15, has a first portion 66 which is pivotally connected to the anchoring axle 22, and a second portion 68 which is connected to the first portion 66 by a hinge 70.
  • the second portion 68 includes a strap receiving portion 72 at an outer end thereof.
  • the two-piece connecting plate 64 allows for a more compact geometry in the stowed configuration. It will be appreciated that this arrangement can be located between axles, in order to operate in both forward and reverse directions.
  • Figures 16 and 17 show braking systems 80, 82 which are generally similar to the braking systems 50, 60 respectfully but wherein the springs 26 have been replaced with compression springs 84 located beneath the plate 54, 68. Deployment of the system pushes the plate 54, 68 against the compression springs, which act as shock absorbers.
  • Figure 18 shows a braking system 90 similar to the braking system 60, but where the springs 26 are arranged in a horizontal configuration, acting in a similar fashion to the springs of braking system 20.
  • Figure 19 shows a braking system 100, where the plate 54 and the springs 26 have been replaced with a torsion spring 102. It will be
  • the braking system 100 can be moved to the stowed position by winding of the torsion spring 102, for instance using a manual winch with a detachable handle 104.
  • Figure 20 shows a wheel elevating system 1 10, using a similar concept to the braking systems described above.
  • a thin wedge 1 12 can be locked to a chassis of a vehicle 1 14, connected to it by a chain 1 16 and held in position by a pin 1 18.
  • the pin 1 18 is released, the wedge 1 12 can be dropped to the ground.
  • the vehicle 1 14 can then be rolled or driven onto the wedge 1 12.
  • the wedge 1 12 is sized to support a single wheel 12. Where there are two wheels located alongside each other on an axle, the wedge 1 12 can be positioned to support the 'good' wheel, leaving the other wheel 12 suspended in the air to allow for replacement or repair of its tyre.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

L'invention concerne un système de freinage pour un véhicule comprenant un treillis stocké dans une position repliée. Lorsqu'un freinage d'urgence est requis, le treillis se déploie sous les roues du véhicule de manière à séparer efficacement les roues du sol.
PCT/AU2016/051076 2015-11-11 2016-11-10 Mécanisme de freinage d'urgence WO2017079797A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2015904636 2015-11-11
AU2015904636A AU2015904636A0 (en) 2015-11-11 Emergency braking mechanism

Publications (1)

Publication Number Publication Date
WO2017079797A1 true WO2017079797A1 (fr) 2017-05-18

Family

ID=58694606

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2016/051076 WO2017079797A1 (fr) 2015-11-11 2016-11-10 Mécanisme de freinage d'urgence

Country Status (1)

Country Link
WO (1) WO2017079797A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2746570A (en) * 1951-08-17 1956-05-22 Stahmer Bernhardt Trailer safety device
US2818939A (en) * 1955-05-13 1958-01-07 Marshall H Benn Emergency braking device for vehicles
US2960191A (en) * 1956-06-26 1960-11-15 Roberts Frederick David Vehicle skid brakes
GB1364751A (en) * 1972-01-25 1974-08-29 Johnson T A Brake systems for wheeled vehicles
WO1996000668A1 (fr) * 1994-06-28 1996-01-11 Robert Kershaw Frein d'urgence a tapis deployable
CN202896548U (zh) * 2012-04-19 2013-04-24 马劲巡 一种汽车制动器的连动装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2746570A (en) * 1951-08-17 1956-05-22 Stahmer Bernhardt Trailer safety device
US2818939A (en) * 1955-05-13 1958-01-07 Marshall H Benn Emergency braking device for vehicles
US2960191A (en) * 1956-06-26 1960-11-15 Roberts Frederick David Vehicle skid brakes
GB1364751A (en) * 1972-01-25 1974-08-29 Johnson T A Brake systems for wheeled vehicles
WO1996000668A1 (fr) * 1994-06-28 1996-01-11 Robert Kershaw Frein d'urgence a tapis deployable
CN202896548U (zh) * 2012-04-19 2013-04-24 马劲巡 一种汽车制动器的连动装置

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