FR2415246A1 - PLASTIC PISTON FOR THE CONTROL OF A DISC BRAKE AND ITS MANUFACTURING PROCESS - Google Patents

PLASTIC PISTON FOR THE CONTROL OF A DISC BRAKE AND ITS MANUFACTURING PROCESS

Info

Publication number
FR2415246A1
FR2415246A1 FR7901545A FR7901545A FR2415246A1 FR 2415246 A1 FR2415246 A1 FR 2415246A1 FR 7901545 A FR7901545 A FR 7901545A FR 7901545 A FR7901545 A FR 7901545A FR 2415246 A1 FR2415246 A1 FR 2415246A1
Authority
FR
France
Prior art keywords
control
manufacturing process
disc brake
plastic piston
face
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.)
Granted
Application number
FR7901545A
Other languages
French (fr)
Other versions
FR2415246B1 (en
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.)
Centro Ricerche Fiat SCpA
Original Assignee
Centro Ricerche Fiat SCpA
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 Centro Ricerche Fiat SCpA filed Critical Centro Ricerche Fiat SCpA
Publication of FR2415246A1 publication Critical patent/FR2415246A1/en
Application granted granted Critical
Publication of FR2415246B1 publication Critical patent/FR2415246B1/fr
Granted legal-status Critical Current

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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J1/00—Pistons; Trunk pistons; Plungers
    • F16J1/001—One-piece pistons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • 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
    • F16D2125/02—Fluid-pressure mechanisms
    • F16D2125/06—Pistons

Abstract

Un piston selon l'invention est une pièce moulée en résine plastique dans un moule 46 et traitée thermiquement dans un four tunnel 48 où la polymérisation est achevée et les contraintes internes sont éliminées. Il comprend une partie cylindrique principale, présentant une face extrême concave, et une partie cylindrique secondaire de plus petit diamètre, séparées par un épaulement annulaire et une transition arrondie de renforcement, ainsi qu'une cavité borgne, s'ouvrant dans la face extrême de la partie secondaire, qui est plus petite que la cavité dans des pistons d'acier analogues.A piston according to the invention is a part molded from plastic resin in a mold 46 and heat treated in a tunnel oven 48 where the polymerization is completed and the internal stresses are eliminated. It comprises a main cylindrical part, having a concave end face, and a secondary cylindrical part of smaller diameter, separated by an annular shoulder and a rounded reinforcement transition, as well as a blind cavity, opening into the end face of the abutment, which is smaller than the cavity in similar steel pistons.

FR7901545A 1978-01-23 1979-01-22 PLASTIC PISTON FOR THE CONTROL OF A DISC BRAKE AND ITS MANUFACTURING PROCESS Granted FR2415246A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT67118/78A IT1107000B (en) 1978-01-23 1978-01-23 RESIN PISTON FOR DISC BRAKES AND PROCEDURE FOR THE RELATED TRAINING

Publications (2)

Publication Number Publication Date
FR2415246A1 true FR2415246A1 (en) 1979-08-17
FR2415246B1 FR2415246B1 (en) 1981-09-11

Family

ID=11299722

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7901545A Granted FR2415246A1 (en) 1978-01-23 1979-01-22 PLASTIC PISTON FOR THE CONTROL OF A DISC BRAKE AND ITS MANUFACTURING PROCESS

Country Status (8)

Country Link
JP (1) JPS54155370A (en)
BE (1) BE873632A (en)
DE (1) DE2902083C3 (en)
ES (2) ES240889Y (en)
FR (1) FR2415246A1 (en)
GB (1) GB2012915B (en)
IT (1) IT1107000B (en)
NL (1) NL7900338A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2493457A1 (en) * 1980-10-31 1982-05-07 Hooker Chemicals Plastics Corp IMPROVED PISTON FOR DISC BRAKES

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4306489A (en) * 1979-11-01 1981-12-22 Exxon Research & Engineering Co. Composite piston
DE3834420A1 (en) * 1988-10-10 1990-04-12 Teves Gmbh Alfred Piston
DE4018114A1 (en) * 1990-06-06 1991-12-12 Lucas Ind Plc Annealing workpieces of thermoset material for piston - by programmed temp. increase of phenolic resin over hours, with annealing temp. below glass transition point
DE4331241B4 (en) * 1993-09-15 2004-02-05 Fte Automotive Gmbh Hydraulic actuation cylinder
DE19536610A1 (en) * 1995-09-30 1997-04-03 Teves Gmbh Alfred Plastics piston for master cylinder in motor vehicle brake systems

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2307671A (en) * 1941-09-20 1943-01-05 Gen Tire & Rubber Co Piston for fluid actuated devices
US2429426A (en) * 1942-09-14 1947-10-21 Bendix Aviat Corp Piston seal
GB598001A (en) * 1945-08-28 1948-02-09 Birmingham Small Arms Co Ltd Improvements in or relating to pistons for inflating pumps
US2571486A (en) * 1948-05-11 1951-10-16 Noel S Reynolds Piston assembly
US2665179A (en) * 1950-07-08 1954-01-05 Richard G Ellas Piston for hydraulic brakes
FR1462580A (en) * 1965-05-28 1966-12-16 Teves Kg Alfred Piston for hydraulic braking systems and method of manufacturing such a piston
FR1566027A (en) * 1967-05-22 1969-05-02
FR2113026A5 (en) * 1970-11-06 1972-06-23 Abex Corp
US3730060A (en) * 1970-10-26 1973-05-01 C Decarbon Floating pistons
GB1366988A (en) * 1971-02-17 1974-09-18 Teldix Gmbh Piston pump
FR2324946A1 (en) * 1975-09-18 1977-04-15 Lucas Industries Ltd DISC BRAKE CONTROL PISTON

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1009672A (en) * 1964-02-19 1965-11-10 Joseph Vincent Tripoli Piston and cylinder arrangements

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2307671A (en) * 1941-09-20 1943-01-05 Gen Tire & Rubber Co Piston for fluid actuated devices
US2429426A (en) * 1942-09-14 1947-10-21 Bendix Aviat Corp Piston seal
GB598001A (en) * 1945-08-28 1948-02-09 Birmingham Small Arms Co Ltd Improvements in or relating to pistons for inflating pumps
US2571486A (en) * 1948-05-11 1951-10-16 Noel S Reynolds Piston assembly
US2665179A (en) * 1950-07-08 1954-01-05 Richard G Ellas Piston for hydraulic brakes
FR1462580A (en) * 1965-05-28 1966-12-16 Teves Kg Alfred Piston for hydraulic braking systems and method of manufacturing such a piston
FR1566027A (en) * 1967-05-22 1969-05-02
US3730060A (en) * 1970-10-26 1973-05-01 C Decarbon Floating pistons
FR2113026A5 (en) * 1970-11-06 1972-06-23 Abex Corp
GB1366988A (en) * 1971-02-17 1974-09-18 Teldix Gmbh Piston pump
FR2324946A1 (en) * 1975-09-18 1977-04-15 Lucas Industries Ltd DISC BRAKE CONTROL PISTON

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2493457A1 (en) * 1980-10-31 1982-05-07 Hooker Chemicals Plastics Corp IMPROVED PISTON FOR DISC BRAKES

Also Published As

Publication number Publication date
GB2012915B (en) 1982-10-20
FR2415246B1 (en) 1981-09-11
ES477046A1 (en) 1979-10-16
GB2012915A (en) 1979-08-01
BE873632A (en) 1979-05-16
JPS54155370A (en) 1979-12-07
DE2902083B2 (en) 1980-11-13
ES240889Y (en) 1979-10-16
DE2902083A1 (en) 1979-08-09
DE2902083C3 (en) 1981-07-23
ES240889U (en) 1979-03-16
IT1107000B (en) 1985-11-18
NL7900338A (en) 1979-07-25
IT7867118A0 (en) 1978-01-23

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Legal Events

Date Code Title Description
ST Notification of lapse