US3692152A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slack adjuster connection arrangement
Assignee: Haldex AB
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Filing: 1970-12-15
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Granted: 1972-09-19
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Expires: 1990-12-15
Abstract
Abstract A slack adjuster is shown which is splined to a rotatable brake shaft. The slack adjuster serves to rock about that shaft by a linkage coupling the shaft to a brake applying piston rod. The slack is adjusted by means of a worm wheel mechanism mounted on and secured against rotation relative to the shaft wherein slack is adjusted by altering the position of the linkage about the shaft when the worm wheel is rotated. In the linkage is coupled a radial arm rotatable about said shaft in a housing forming part of the linkage. A rigid link is connected between the radial arm and the piston rod to confine rotation of the radial arm about said shaft.
Inventors
- 👤 Karl Bertil Larsson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:11
CPC Classifications
F; F16; F16D; F16D65/00; F16D65/38; F16D65/40; F16D65/52; F16D65/60; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20582; Y10T74/206
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
148 words
A slack adjuster arrangement for operation to rotate a brake shaft about its axis in a brake system on a vehicle said slack adjuster being of the type having a reference position for coupling relatively to a position on said vehicle on which the adjuster is used, comprising in combination a rod movable to apply braking forces in said system by rotating said shaft, a worm gear arrangement coupled between said rod and said shaft to rotate the shaft comprising a worm gear movable by said rod and a worm wheel coaxially mounted with said axis engaging said worm gear, slack adjusting means rotating the worm gear to adjust the slack in the brake system, and means establishing said reference position comprising a radial arm rotatable about saId axis with the worm wheel and a link pivotally attached at fixed positions to said radial arm and said rod.
Claim 2
Dependent Claim
148 words
A slack adjuster arrangement for operation to rotate a brake shaft about its axis in a brake system on a vehicle said slack adjuster being of the type having a reference position for coupling relatively to a position on said vehicle on which the adjuster is used, comprising in combination a rod movable to apply braking forces in said system by rotating said shaft, a worm gear arrangement coupled between said rod and said shaft to rotate the shaft comprising a worm gear movable by said rod and a worm wheel coaxially mounted with said axis engaging said worm gear, slack adjusting means rotating the worm gear to adjust the slack in the brake system, and means establishing said reference position comprising a radial arm rotatable about saId axis with the worm wheel and a link pivotally attached at fixed positions to said radial arm and said rod.
Claim 3
Dependent Claim
45 words
An arrangement as defined in claim 1 wherein the rod is pivotally connected at a pivot axis to the worm gear arrangement, and wherein said link extends substantially parallel to a plane which includes the axis of rotation of said shaft and said pivot axis.
Claim 4
Dependent Claim
21 words
An arrangement as defined in claim 1 wherein said link comprises a rigid integer connected between said arm and said rod.
Claim 5
Dependent Claim
70 words
An arrangement as defined by claim 1 including a housing member rotatable about said shaft, wherein said rod is coupled to rotate the shaft at a pivot point in the housing member, and wherein the distance between the axis and the pivot position on said link is substantially equal to the distance between the pivot point on the housing member and the pivot point of said link on said rod.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-09-19 | 1976-03-20 | 1976-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-19 | 1980-03-20 | 1980-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-19 | 1984-03-20 | 1984-09-19 | $7700.00 | Window Closed / Lapsed |