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WO1998054485B1 - Reduced noise brake shoe assembly - Google Patents

Reduced noise brake shoe assembly

Info

Publication number
WO1998054485B1
WO1998054485B1 PCT/US1998/010764 US9810764W WO9854485B1 WO 1998054485 B1 WO1998054485 B1 WO 1998054485B1 US 9810764 W US9810764 W US 9810764W WO 9854485 B1 WO9854485 B1 WO 9854485B1
Authority
WO
WIPO (PCT)
Prior art keywords
brake shoe
backing plate
hold down
leading
trailing
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.)
Ceased
Application number
PCT/US1998/010764
Other languages
French (fr)
Other versions
WO1998054485A1 (en
Filing date
Publication date
Priority claimed from US09/052,531 external-priority patent/US6241061B1/en
Application filed filed Critical
Priority to AU77992/98A priority Critical patent/AU7799298A/en
Publication of WO1998054485A1 publication Critical patent/WO1998054485A1/en
Publication of WO1998054485B1 publication Critical patent/WO1998054485B1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Abstract

The present invention is a drum brake shoe assembly (8) having an improved support structure (31) which limits the lateral travel of the leading brake shoe (13), to thereby reduce or eliminate audible impacts between the brake shoe (13) and the backing plate (10) of the drum brake assembly. In accordance with the invention, two or more spaced apart hold down devices (30, 31) are provided on the leading brake shoe (13) while a single hold down device (30) is used on the trailing brake shoe (12). Each of the hold down device includes a hold down pin (32) connected at a first end (38) to the backing plate (10) of the drum brake assembly. The second end (40) of each hold down pin (32) extends through an opening (36) in the web (18) of the brake shoe (14). Springs such as coils springs (42) or the like are disposed between the second ends of the hold down pins (32) and the brake shoe web (18) for urging the brake shoe (14) against the backing plate (10).

Claims

AMENDED CLAIMS[received by the International Bureau on 15 December 1998 (15.12.98); original claim 1 amended; remaining claim unchanged (1 page)]
1. A drum brake assembly comprising: a) a backing plate; b) a pair of brake shoes mounted on said backing plate, said pair of brake shoes including a leading brake shoe and a trailing brake shoe, wherein said leading brake shoe has a greater tendency for lateral movement towards or away from said backing plate than said trailing brake shoe during braking; c) only a single hold down device extending through said trailing brake shoe at a single location for retaining said trailing brake shoe against said backing plate; and d) at least two spaced apart hold down devices extending through said leading brake shoe for retaining said leading brake shoe against said backing plate and inhibiting said greater tendency for lateral movement of said leading brake shoe.
2. The invention defined in claim 1 wherein said hold down devices include spring assemblies for urging said leading and trailing brake shoes into engagement with said backing plate.
10 STATEMENT UNDER ARTICLE 19
By the submission of the attached replacement page 9, the applicant has amended claim 1 to more particularly point out and distinctly claim the invemion. The claims pending in the application are claims 1 and 2. No new matter has been added pursuant to the amendment of the claims.
11
PCT/US1998/010764 1997-05-27 1998-05-27 Reduced noise brake shoe assembly Ceased WO1998054485A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU77992/98A AU7799298A (en) 1997-05-27 1998-05-27 Reduced noise brake shoe assembly

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US4767297P 1997-05-27 1997-05-27
US60/047,672 1997-05-27
US09/052,531 1998-03-31
US09/052,531 US6241061B1 (en) 1997-05-27 1998-03-31 Reduced noise brake shoe assembly

Publications (2)

Publication Number Publication Date
WO1998054485A1 WO1998054485A1 (en) 1998-12-03
WO1998054485B1 true WO1998054485B1 (en) 1999-02-11

Family

ID=26725304

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/010764 Ceased WO1998054485A1 (en) 1997-05-27 1998-05-27 Reduced noise brake shoe assembly

Country Status (3)

Country Link
US (1) US6241061B1 (en)
AU (1) AU7799298A (en)
WO (1) WO1998054485A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AUPR406801A0 (en) * 2001-03-29 2001-04-26 Bishop Austrans Limited Brake for rail guided vehicle

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126984A (en) * 1964-03-31 T birge
US2263949A (en) 1940-08-03 1941-11-25 Budd Wheel Co Brake
US2999566A (en) * 1959-08-24 1961-09-12 Gen Motors Corp Brake shoe spring
FR1295394A (en) 1961-03-23 1962-06-08 Dba Sa Drum brake improvements
US3108659A (en) * 1962-05-17 1963-10-29 Kelsey Hayes Co Brake construction with anti-friction bearing means
US3782513A (en) * 1971-11-04 1974-01-01 Kelsey Hayes Co Inspection hole cover
GB1543624A (en) 1976-09-17 1979-04-04 Coal Ind Brake equipment
DE2852819C2 (en) * 1978-12-07 1986-12-11 Klöckner-Humboldt-Deutz AG, 5000 Köln Vehicle drum brake
US4623050A (en) 1985-09-03 1986-11-18 General Motors Corporation Shoe hold-down pin and spring clip
US4790704A (en) 1987-09-22 1988-12-13 Allied-Signal Inc. Retainer assembly
US5322145A (en) 1989-08-29 1994-06-21 Kelsey-Hayes Company Drum brake operating mechanism
US5238089A (en) 1989-12-20 1993-08-24 Akebono Brake Industry Co., Ltd. Squeak prevention for disc brake
US4987979A (en) * 1990-02-05 1991-01-29 Chrysler Corporation Anti-squeak bumpers for brakes
US5201390A (en) 1992-05-28 1993-04-13 Allied-Signal Inc. Brake shoe hold down spring
US5262599A (en) 1992-06-19 1993-11-16 Aguirre Sr Tom L Brake rotor silencer apparatus
DE9300423U1 (en) 1993-01-14 1994-05-19 Lucas Industries P.L.C., Birmingham, West Midlands Hold-down device for a brake shoe of a drum brake
US5383539A (en) 1993-10-04 1995-01-24 Eaton Corporation Brake squeal dampener ring
US5390769A (en) 1993-11-26 1995-02-21 Eaton Corporation Drum brake spring clip with squealer band retainer

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