JPS5690130A - Forged piston for disc brake - Google Patents

Forged piston for disc brake

Info

Publication number
JPS5690130A
JPS5690130A JP17055480A JP17055480A JPS5690130A JP S5690130 A JPS5690130 A JP S5690130A JP 17055480 A JP17055480 A JP 17055480A JP 17055480 A JP17055480 A JP 17055480A JP S5690130 A JPS5690130 A JP S5690130A
Authority
JP
Japan
Prior art keywords
cylinder
axis
forged
disc brake
concavity
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.)
Pending
Application number
JP17055480A
Other languages
Japanese (ja)
Inventor
Masayuki Kurata
Toshihiko Kimura
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.)
Akebono Brake Industry Co Ltd
Original Assignee
Akebono Brake Industry Co Ltd
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 Akebono Brake Industry Co Ltd filed Critical Akebono Brake Industry Co Ltd
Priority to JP17055480A priority Critical patent/JPS5690130A/en
Publication of JPS5690130A publication Critical patent/JPS5690130A/en
Pending 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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Braking Arrangements (AREA)
  • Forging (AREA)

Abstract

PURPOSE:To prevent reduction of the thickness of the part of a forged piston for a disc brake into which a dust protective boot end edge is engaged, by expanding the part of a cylinder with a bottom which is at a slight distance from its open end diametrically inwards by rolling. CONSTITUTION:Being pressed on the outer circumference of a forged cylinder 24, at a distancel from its open end surface 30, a rolling roll 25 is revolved about an axis 31 of the cylinder 24 to dent it diametrically inwards in order to form a concavity 29. On the other hand, a roll 26 which has a fulcrum axis 28 crossing the axis 31 at a small angle is pressed on the inner circumference of the cylinder 24 in order to prevent reduction of the diameter of the opening 30. Moreover, the concavity 29 is cut to form a concave groove 29a to engage with a dust protective boot. Then, these surfaces are plated with chromium to form a hollow piston. Thereby, a hollow piston having a uniform thickness and excellent corrosion and wear resistances can be readily obtained without the need for, specially, heat treatment.
JP17055480A 1980-12-03 1980-12-03 Forged piston for disc brake Pending JPS5690130A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17055480A JPS5690130A (en) 1980-12-03 1980-12-03 Forged piston for disc brake

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17055480A JPS5690130A (en) 1980-12-03 1980-12-03 Forged piston for disc brake

Publications (1)

Publication Number Publication Date
JPS5690130A true JPS5690130A (en) 1981-07-22

Family

ID=15907011

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17055480A Pending JPS5690130A (en) 1980-12-03 1980-12-03 Forged piston for disc brake

Country Status (1)

Country Link
JP (1) JPS5690130A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02120536A (en) * 1988-10-31 1990-05-08 Sumitomo Shoji Kk Piston for disc brake and manufacture thereof
US5105917A (en) * 1990-12-31 1992-04-21 Kelsey-Hayes Company Disc brake piston
US5231916A (en) * 1990-02-08 1993-08-03 Alfred Teves Gmbh Cold-worked piston for hydraulically operating brake
WO1997028386A1 (en) * 1996-02-01 1997-08-07 Itt Manufacturing Enterprises, Inc. Cold-formed piston for a hydraulic brake
WO2003015980A1 (en) * 2001-08-08 2003-02-27 Lucas Automotive Gmbh Hydraulic piston consisting of rolled sheet metal, method for producing the same and an intermediate product obtained by said method
JP2007024285A (en) * 2005-07-21 2007-02-01 Hosei Brake Ind Ltd Seal structure
CN110914571A (en) * 2017-06-09 2020-03-24 大陆-特韦斯股份有限公司 Cold-formed brake piston
US11236826B2 (en) 2016-06-16 2022-02-01 Continental Teves Ag & Co. Ohg Steel brake piston for a hydraulic brake

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02120536A (en) * 1988-10-31 1990-05-08 Sumitomo Shoji Kk Piston for disc brake and manufacture thereof
US5231916A (en) * 1990-02-08 1993-08-03 Alfred Teves Gmbh Cold-worked piston for hydraulically operating brake
US5105917A (en) * 1990-12-31 1992-04-21 Kelsey-Hayes Company Disc brake piston
WO1997028386A1 (en) * 1996-02-01 1997-08-07 Itt Manufacturing Enterprises, Inc. Cold-formed piston for a hydraulic brake
WO2003015980A1 (en) * 2001-08-08 2003-02-27 Lucas Automotive Gmbh Hydraulic piston consisting of rolled sheet metal, method for producing the same and an intermediate product obtained by said method
US7000526B2 (en) 2001-08-08 2006-02-21 Lucas Automotive Gmbh Hydraulic piston made from rolled sheet metal, method for its manufacture and intermediate product of the method
JP2007024285A (en) * 2005-07-21 2007-02-01 Hosei Brake Ind Ltd Seal structure
US11236826B2 (en) 2016-06-16 2022-02-01 Continental Teves Ag & Co. Ohg Steel brake piston for a hydraulic brake
CN110914571A (en) * 2017-06-09 2020-03-24 大陆-特韦斯股份有限公司 Cold-formed brake piston
CN110914571B (en) * 2017-06-09 2021-12-21 大陆-特韦斯股份有限公司 Cold-formed brake piston
US11614135B2 (en) 2017-06-09 2023-03-28 Continental Automotive Technologies GmbH Cold-worked brake piston

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