WO1998054485B1 - Reduced noise brake shoe assembly - Google Patents
Reduced noise brake shoe assemblyInfo
- 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
Links
- 230000000712 assembly Effects 0.000 claims 1
- 230000002401 inhibitory effect Effects 0.000 claims 1
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
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
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 US6241061B1 (en) | 1997-05-27 | 1998-03-31 | Reduced noise brake shoe assembly |
US09/052,531 | 1998-03-31 |
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 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)
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)
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 |
-
1998
- 1998-03-31 US US09/052,531 patent/US6241061B1/en not_active Expired - Lifetime
- 1998-05-27 AU AU77992/98A patent/AU7799298A/en not_active Abandoned
- 1998-05-27 WO PCT/US1998/010764 patent/WO1998054485A1/en active Application Filing
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