Patent ID: 6464044
Filing Date: 2002-10-15
Classification: A61G,B60T,B62B,B62L

Abstract:
A braking apparatus for braking a wheel of a vehicle, comprising:a main body; a cam which is supported by said main body such that said cam is rotatable about an axis thereof, and which has a cam surface whose distance from said axis changes as viewed in a circumferential direction of said cam; a movable member which is held by said main body such that said movable member is movable relative to said main body, and which holds a cam follower portion engaging said cam surface, and a braking portion brought into contact with a tire of the wheel; an operating device which includes an operating member operable to be moved in first and second directions, and which rotates said cam in one of opposite directions in response to the movement of said operating member in said first direction, for thereby moving said movable member in a forward direction that causes said braking portion to be displaced toward the tire, and rotates said cam in the other of said opposite directions in response to the movement of said operating member in said second direction, for thereby moving said movable member in a reverse direction that is opposite to said forward direction; and a reverse-movement preventing device which prevents the movement of said movable member in said reverse direction, wherein said reverse-movement preventing device includes a positioning device which positions said movable member in a selected one of a plurality of predetermined positions relative to said main body, and holds said movable member in the selected position.