IT1076095B - Piston seal for master brake cylinder - has convex outer profile with inner lip acting on groove in piston - Google Patents

Piston seal for master brake cylinder - has convex outer profile with inner lip acting on groove in piston

Info

Publication number
IT1076095B
IT1076095B IT2562677A IT2562677A IT1076095B IT 1076095 B IT1076095 B IT 1076095B IT 2562677 A IT2562677 A IT 2562677A IT 2562677 A IT2562677 A IT 2562677A IT 1076095 B IT1076095 B IT 1076095B
Authority
IT
Italy
Prior art keywords
piston
seal
brake cylinder
master brake
groove
Prior art date
Application number
IT2562677A
Other languages
Italian (it)
Inventor
Leonardo Cadeddu
Original Assignee
Beditalia Spa
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 Beditalia Spa filed Critical Beditalia Spa
Priority to IT2562677A priority Critical patent/IT1076095B/en
Priority to GB4248977A priority patent/GB1539690A/en
Priority to BR7706799A priority patent/BR7706799A/en
Priority to YU246477A priority patent/YU40681B/en
Priority to US05/841,785 priority patent/US4199949A/en
Priority to SE7711555A priority patent/SE421399B/en
Priority to AR26959777A priority patent/AR212129A1/en
Priority to JP52122592A priority patent/JPS5858264B2/en
Priority to DE19772746260 priority patent/DE2746260A1/en
Priority to FR7730953A priority patent/FR2367639A1/en
Priority to ES463229A priority patent/ES463229A1/en
Application granted granted Critical
Publication of IT1076095B publication Critical patent/IT1076095B/en
Priority to HR931041A priority patent/HRP931041B1/en

Links

Landscapes

  • Braking Arrangements (AREA)
  • Sealing Devices (AREA)

Abstract

The piston seal of the master brake cylinder has a rubber ring (42) with outer convex profile to run over the cylinder wall. The inner edge of the seal has a flexible lip (54) with the lip resting against the leading edge of the drive piston, so that a small amount of movement closes the hydraulic path across the piston. The inner lip is less prone to grit damage and operates effectively even with short sharp brake movements. The pumping action of the short brake strokes is avoided so that braking control is maintained.
IT2562677A 1976-10-15 1977-07-12 Piston seal for master brake cylinder - has convex outer profile with inner lip acting on groove in piston IT1076095B (en)

Priority Applications (12)

Application Number Priority Date Filing Date Title
IT2562677A IT1076095B (en) 1977-07-12 1977-07-12 Piston seal for master brake cylinder - has convex outer profile with inner lip acting on groove in piston
BR7706799A BR7706799A (en) 1976-10-15 1977-10-12 HYDRAULIC MASTER CYLINDER FOR BRAKING SYSTEM, VEHICLE
GB4248977A GB1539690A (en) 1976-10-15 1977-10-12 Hydraulic master cylinder
US05/841,785 US4199949A (en) 1976-10-15 1977-10-13 Hydraulic master cylinder
YU246477A YU40681B (en) 1976-10-15 1977-10-13 Main cylinder of a hydraulic braking system for motor vehicles
SE7711555A SE421399B (en) 1976-10-15 1977-10-13 HYDRAULIC MAIN CYLINDER
AR26959777A AR212129A1 (en) 1976-10-15 1977-10-14 HYDRAULIC MASTER CYLINDER
JP52122592A JPS5858264B2 (en) 1976-10-15 1977-10-14 fluid master cylinder
DE19772746260 DE2746260A1 (en) 1976-10-15 1977-10-14 MASTER BRAKE CYLINDER
FR7730953A FR2367639A1 (en) 1976-10-15 1977-10-14 HYDRAULIC MASTER CYLINDER
ES463229A ES463229A1 (en) 1976-10-15 1977-10-14 Hydraulic master cylinder
HR931041A HRP931041B1 (en) 1976-10-15 1993-07-09 Main cylinder of hydraulic brake system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2562677A IT1076095B (en) 1977-07-12 1977-07-12 Piston seal for master brake cylinder - has convex outer profile with inner lip acting on groove in piston

Publications (1)

Publication Number Publication Date
IT1076095B true IT1076095B (en) 1985-04-22

Family

ID=11217294

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2562677A IT1076095B (en) 1976-10-15 1977-07-12 Piston seal for master brake cylinder - has convex outer profile with inner lip acting on groove in piston

Country Status (1)

Country Link
IT (1) IT1076095B (en)

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19950729