Patent ID: 6532624
Filing Date: 2003-03-18
Classification: B60B,Y10T

Abstract:
A brake caster comprising:a wheel holder having a spindle seat disposed at a lower portion, said spindle seat having a through hole disposed therein and at least one positioning plate disposed at one sidewall, each of said at least one positioning plates having an axial hole; a spindle capable of being extended through said through hole of said spindle seat of said wheel holder and having a lower portion provided with a plurality of engagement grooves and an upper portion screwed with a nut; a stop seat capable of being disposed below said wheel holder and having two opposite ring bodies, each of said two ring bodies having a plurality of external teeth disposed at an upper portion and a through hole formed at a center, a fixing base disposed between said two ring bodies and having at least one recess and an inclined plane; a brake seat capable of being disposed below said stop seat and having one end provided with a top push-face and the other end provided with a paddle, an axial hole disposed below said top push-face; a stop plate capable of being firmly fixed at a bottom of said brake seat and having one end formed to be an engagement end; and, two wheel bodies capable of being oppositely disposed below said wheel holder and connected by a pivot, two chambers respectively disposed at two opposite inner surfaces of said two wheel bodies and each having a plurality of internal teeth disposed around an inner sidewall surface thereof; and, whereby said paddle of said brake seat is capable of being depressed to make said top push-face of said brake seat rotate upwardly to push said stop seat upwardly so that said external teeth of said stop seat are engaged to said internal teeth of said two wheel bodies to brake said two wheel bodies not to move; at the same time, said engagement end of said stop plate is engaged to said plurality of engagement grooves disposed at said bottom of said spindle to lock said spindle not to swivel so as to achieve actual braking and positioning effects in said two wheel bodies and said spindle.