Patent ID: 6068093
Filing Date: 2000-05-30
Classification: F16D

Abstract:
A band brake comprising:a case;a drum which is rotatably held in said case;a brake band which is detachably abutted against the outer cylindrical surface of said drum, and has a first locking section and a second locking section at both ends thereof, said first and second locking sections being protruded radially of said drum;an anchor pin which is held in said case, and is engaged with said first locking section; andan apply pin which is held in said case, and drives said second locking section to drive said brake band to cause said brake band to abut against said drum;wherein said anchor pin is cylindrical and is extended in parallel with the axis of rotation of said drum;said first locking section engaged with said anchor pin has an engaging protrusion trapezoid in section at the middle as viewed in the direction of width thereof which is protruded circumferentially of said drum and has a flat portion extending radially of said drum; andsaid first locking section is brought into line contact with said anchor pin through the flat portion of said engaging protrusion.