WO1997019276A1 - Vehicle brake system - Google Patents
Vehicle brake system Download PDFInfo
- Publication number
- WO1997019276A1 WO1997019276A1 PCT/US1996/018712 US9618712W WO9719276A1 WO 1997019276 A1 WO1997019276 A1 WO 1997019276A1 US 9618712 W US9618712 W US 9618712W WO 9719276 A1 WO9719276 A1 WO 9719276A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- hydraulic
- brake
- pushrod
- brake system
- frictional engagement
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
- F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
- F16D65/18—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. for disc brakes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/78—Features relating to cooling
- F16D2065/785—Heat insulation or reflection
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/14—Mechanical
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2125/00—Components of actuators
- F16D2125/18—Mechanical mechanisms
- F16D2125/58—Mechanical mechanisms transmitting linear movement
- F16D2125/60—Cables or chains, e.g. Bowden cables
Definitions
- This invention relates to a brake system of the type having calipers having
- braking elements are either in the form of disc rotors or drums
- the heat generated from frictional engagement of each braking element with its associated brake pads is not sufficient to elevate the temperature of the hydraulic brake liquid to its boiling point
- This pilot chamber is connected to a main cylinder in close
- the purpose of the main cylinder is to furnish the necessary
- Patent #3,407,907 issued to Schmid discloses an auxiliary brake mechanism which incorporates the use of ball bearings Schmid does not disclose the use of ball bearings as an assist in hydraulic braking nor does it disclose the use of ball bearings as a means to thermally insulate hydraulic braking fluid by remotely
- Patent #5,031 ,511 issued to Villata discloses a hydraulic brake piston having an insulating core member to thermally insulate hydraulic braking fluid.
- Villata teaches an annular core member of heat insulating material such as brake friction
- liner mate ⁇ al i.e. fibers, fillers and binder.
- the annular core member is disposed
- Villata also teaches that the core member is composed of brake friction liner material. Villata, although addressing the
- One embodiment of the invention has a semi-rigid or rigid element referred to as a pushrod disposed
- the hydraulic fluid being remotely located from the calipers will provide operators, especially those driving heavy motorized vehicles, traveling downhill with an added measure of security.
- the length of the pushrod or, put another way, the distance between the calipers and the remote fluid chamber housing the hydraulic liquid, should be a
- the pushrod has a low thermal conductivity, then its length can be less than if it had a higher value.
- a mate ⁇ al with a low thermal conductivity rate has a
- the pushrod can be made out of any rigid or substantially rigid material capable of existing in a high temperature environment which can withstand the compressive forces associated with braking without deformation. It is preferred that the pushrod, as discussed above, be made from a material which has a Iower
- a pushrod extending away from the inside brake caliper and parallel to the ground may not have adequate space to be installed properly. This can occur because of the positioning of the engine block, transmission, suspension or other vehicular parts relative to the braking calipers or shoes and the direction which the pushrod would extend from the brake contact components A second
- FIG. 1 is a schematic view of a conventional hydraulic rotor braking system
- Figure 2 is a schematic view of a preferred embodiment of the invention
- Figure 3 is a schematic view of an alternative embodiment of the improved
- Figure 4 is a schematic view of a second alternative embodiment of the
- Figure 5 is an exploded view of the improved braking system and its
- a hydraulic fluid chamber 10 having a slidable piston 14 therein is connected directly to brake
- Braking element 18 constitutes part of the wheel of the vehicle (not shown), although the brake element can of course be separate from the wheel.
- brake fluid As a braking force is applied in the cab of the vehicle (not shown), brake fluid
- the communicating means described in the following embodiments preferably consist of a material possessing a low thermal conductivity rate. Additionally, it is also preferred that piston 14 consist of the same material as that of the communicating means.
- FIG. 2 shows one embodiment of the present invention.
- conduction pushrod 22 is disposed between the caliper brake assembly 12 and the remote hydraulic fluid chamber 10 and piston 14. When braking, the hydraulic fluid
- Figure 3 is a second embodiment of the present invention which utilizes a hinge 20 pivotally coupled to brake housing assembly 12 at a fulcrum pin 23 and to
- Figure 4 shows a third embodiment of the invention.
- the means comprises a tube 26 with a plurality of ball bearings 28 disposed therein.
- a hydraulic pushing force is applied to one end of a ball bearing string which
- the inside diameter of the tube is sufficient to only permit the ball bearings to be positioned in a single string abutting relationship. Further, the wall integrity of the tube is capable of resisting
- FIG. 5 Another embodiment is illustrated in Figure 5, where pushrod 22 would be disposed within a modified and protective caliper housing 30 incorporating a pushrod housing 32 to prevent dirt and other matter from effecting the operational
- the modified housing would also serve to protect pushrod 22 from accidental bending or deformation.
- Figure 5 also presents an embodiment wherein caliper housing 30, pushrod housing 32, pushrod 22, piston 14 and chamber 10 are combined to form an integral assembly. Such an assembly can be economically manufactured.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU10805/97A AU1080597A (en) | 1995-11-21 | 1996-11-18 | Vehicle brake system |
EP96940844A EP0858561A4 (en) | 1995-11-21 | 1996-11-18 | Vehicle brake system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/560,277 | 1995-11-21 | ||
US08/560,277 US5782323A (en) | 1995-11-21 | 1995-11-21 | Caliper disc brake having a low thermal conductivity extension element |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997019276A1 true WO1997019276A1 (en) | 1997-05-29 |
Family
ID=24237098
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1996/018712 WO1997019276A1 (en) | 1995-11-21 | 1996-11-18 | Vehicle brake system |
Country Status (4)
Country | Link |
---|---|
US (1) | US5782323A (en) |
EP (1) | EP0858561A4 (en) |
AU (1) | AU1080597A (en) |
WO (1) | WO1997019276A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6166150A (en) * | 1996-09-25 | 2000-12-26 | Basf Coatings Ag | Process for preparing an aqueous dispersion of a polyacrylate-modified polyurethane-alkyd resin and the use of such a dispersion |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE286217T1 (en) * | 2001-06-04 | 2005-01-15 | Freni Brembo Spa | BRAKE PISTON |
US7032722B2 (en) * | 2003-07-07 | 2006-04-25 | Arvinmeritor Technology, Llc | Multiple ball screw assembly with differing pitch used to optimize force and displacement of brake actuator |
Citations (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2954850A (en) * | 1956-12-13 | 1960-10-04 | Gen Motors Corp | Actuating mechanism for disk brake |
US3047098A (en) * | 1959-06-26 | 1962-07-31 | Gen Motors Corp | Vehicle disk brake |
US3103990A (en) * | 1960-11-01 | 1963-09-17 | Thomas J Pierson | Hydraulic disc brake |
US3109517A (en) * | 1959-08-29 | 1963-11-05 | Dunlop Rubber Co | Disc brakes |
US3255848A (en) * | 1963-06-12 | 1966-06-14 | Girling Ltd | Disc brakes |
US3407907A (en) * | 1965-08-06 | 1968-10-29 | Teves Gmbh Alfred | Auxiliary brake mechanism and actuator for disk brakes |
US3587788A (en) * | 1968-08-07 | 1971-06-28 | John Myers Beach | Automatically operable brake apparatus for trailer vehicles |
US3690417A (en) * | 1971-01-28 | 1972-09-12 | Airheart Prod | Wear compensated, force multiplying disc brake |
US3721321A (en) * | 1971-06-25 | 1973-03-20 | G Yarber | Friction coefficient compensating braking apparatus |
US4136759A (en) * | 1976-12-09 | 1979-01-30 | Weinmann Gmbh & Co. Kg | Bicycle rim brake |
US4194596A (en) * | 1978-12-29 | 1980-03-25 | Eaton Corporation | Disc brake housing assembly |
US4393962A (en) * | 1981-03-05 | 1983-07-19 | Jacob Kobelt | Self-centering device for caliper brake assembly |
US4660460A (en) * | 1985-07-29 | 1987-04-28 | Allied Corporation | Magnetic front seal for vacuum brake booster |
US4896753A (en) * | 1987-04-04 | 1990-01-30 | Sandor Sule | Bicycle brake |
US5031511A (en) * | 1989-04-25 | 1991-07-16 | Valeo | Piston for an hydraulic brake, in particular for automotive vehicles |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1930272A (en) * | 1931-04-13 | 1933-10-10 | Louis C Huck | Flexible brake operating means |
US2087378A (en) * | 1932-12-01 | 1937-07-20 | Bendix Brake Co | Brake |
US3020094A (en) * | 1959-09-11 | 1962-02-06 | Bendix Westinghouse Automotive | Safety brake mechanism for vehicle |
US3173515A (en) * | 1962-11-29 | 1965-03-16 | Clark Equipment Co | Brake construction |
CA1030881A (en) * | 1975-04-02 | 1978-05-09 | Donald D. Johannesen | Mechanically actuated disc brake |
GB8624800D0 (en) * | 1986-10-16 | 1986-11-19 | Lucas Ind Plc | Disc brakes |
DE3717072A1 (en) * | 1987-05-21 | 1988-12-08 | Knorr Bremse Ag | Brake application mechanism |
FR2657665A1 (en) * | 1990-01-31 | 1991-08-02 | Bendix Europ Services Tech | CORNER DISC BRAKE. |
DE4308704A1 (en) * | 1993-03-18 | 1994-09-22 | Knorr Bremse Ag | Air operated disc brake |
-
1995
- 1995-11-21 US US08/560,277 patent/US5782323A/en not_active Expired - Fee Related
-
1996
- 1996-11-18 WO PCT/US1996/018712 patent/WO1997019276A1/en not_active Application Discontinuation
- 1996-11-18 EP EP96940844A patent/EP0858561A4/en not_active Withdrawn
- 1996-11-18 AU AU10805/97A patent/AU1080597A/en not_active Abandoned
Patent Citations (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2954850A (en) * | 1956-12-13 | 1960-10-04 | Gen Motors Corp | Actuating mechanism for disk brake |
US3047098A (en) * | 1959-06-26 | 1962-07-31 | Gen Motors Corp | Vehicle disk brake |
US3109517A (en) * | 1959-08-29 | 1963-11-05 | Dunlop Rubber Co | Disc brakes |
US3103990A (en) * | 1960-11-01 | 1963-09-17 | Thomas J Pierson | Hydraulic disc brake |
US3255848A (en) * | 1963-06-12 | 1966-06-14 | Girling Ltd | Disc brakes |
US3407907A (en) * | 1965-08-06 | 1968-10-29 | Teves Gmbh Alfred | Auxiliary brake mechanism and actuator for disk brakes |
US3587788A (en) * | 1968-08-07 | 1971-06-28 | John Myers Beach | Automatically operable brake apparatus for trailer vehicles |
US3690417A (en) * | 1971-01-28 | 1972-09-12 | Airheart Prod | Wear compensated, force multiplying disc brake |
US3721321A (en) * | 1971-06-25 | 1973-03-20 | G Yarber | Friction coefficient compensating braking apparatus |
US4136759A (en) * | 1976-12-09 | 1979-01-30 | Weinmann Gmbh & Co. Kg | Bicycle rim brake |
US4194596A (en) * | 1978-12-29 | 1980-03-25 | Eaton Corporation | Disc brake housing assembly |
US4393962A (en) * | 1981-03-05 | 1983-07-19 | Jacob Kobelt | Self-centering device for caliper brake assembly |
US4660460A (en) * | 1985-07-29 | 1987-04-28 | Allied Corporation | Magnetic front seal for vacuum brake booster |
US4896753A (en) * | 1987-04-04 | 1990-01-30 | Sandor Sule | Bicycle brake |
US5031511A (en) * | 1989-04-25 | 1991-07-16 | Valeo | Piston for an hydraulic brake, in particular for automotive vehicles |
Non-Patent Citations (1)
Title |
---|
See also references of EP0858561A4 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6166150A (en) * | 1996-09-25 | 2000-12-26 | Basf Coatings Ag | Process for preparing an aqueous dispersion of a polyacrylate-modified polyurethane-alkyd resin and the use of such a dispersion |
Also Published As
Publication number | Publication date |
---|---|
US5782323A (en) | 1998-07-21 |
AU1080597A (en) | 1997-06-11 |
EP0858561A4 (en) | 2000-08-23 |
EP0858561A1 (en) | 1998-08-19 |
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