PIN SLIDE-TYPE FLOATING DISC BRAKE
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United States of America Patent
Stats
-
N/A
Issued Date -
Sep 20, 2012
app pub date -
Mar 14, 2012
filing date -
Oct 28, 2010
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A pin slide-type floating disc brake includes a mount, a caliper, one of which has a slide hole, a support pin provided to the other one and slidably inserted into the slide hole, and a tubular pin boot covering a part of the support pin. The pin boot includes a pin-side annular seal portion, a slide hole-side annular seal portion, and an extendable tubular bellows portion connecting those seal portions. The outer peripheral part of the slide hole-side annular seal portion includes an elastic restriction portion to elastically restrict movement of the slide hole-side annular seal portion in a rotor shaft direction, in an annular accommodation groove. The inner peripheral part of the slide hole-side annular seal portion includes, a first annular lip portion on a bellows portion side, and a second annular lip portion which has a retraction function on an opposite side to the bellows portion.
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