Positive-locking vehicular parking brake
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 26, 2001
Grant Date -
N/A
app pub date -
May 24, 1999
filing date -
May 24, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A work vehicle having a vehicle parking brake and a method are disclosed involving prevention of brake engagement at speeds beyond a predetermined threshold. The parking brake includes a rotatable plate having one or more pin-receiving openings therethrough radially spaced from the plate axis on an axially concentric circle, and a pin transverse to the plate at the circle, the pin being movable between a retracted position spaced from the plate and an extended position within the opening, such that the plate can rotate or is prevented from rotating depending on pin position. Each pin-receiving opening is bounded by leading and trailing edges, and the pin has a distal end portion, with one of the edge and distal end portion having a deflecting surface angled with respect to the pin axis, preferably a chamfer, such that, when the plate is rotating above a predetermined rate, contact of the trailing edge of the plate opening with the deflecting surface will cam the pin away from the rotating plate toward the retracted position and prevent brake engagement. The pin is preferably spring biased toward its extended position.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully