Patent ID: 7028815
Filing Date: 2006-04-18
Classification: F16D

Abstract:
1. A double-wrap band brake apparatus which has a double-wrap brake band comprising: an annular intermediate band with a frictional surface formed on an inner periphery thereof; a pair of annular outer bands secured to a free end of said intermediate band in a state that respective free ends of said outer bands oppose to each other and have frictional surfaces respectively formed on inner peripheries thereof; an anchor bracket having an anchor portion adapted to engage an anchor pin and secured to operating ends of said outer bands to be latched on the side of a main body casing; and an apply bracket secured to an operating end of said intermediate band and having an apply portion disposed to receive a force from an actuator in a direction in which the intermediate band and the outer bands are constricted from an actuator, wherein a center deviation correcting member for correcting a center deviation between said intermediate band and said outer bands is formed on at least one of said anchor bracket and said apply bracket, said center deviation correcting member being positioned at a predetermined distance circumferentially from said anchor portion or said apply portion of said at least one of said anchor bracket and said apply bracket, and having portions positioned to substantially prevent said outer bands from becoming radially outwardly deviated relative to said intermediate band.