Patent ID: 6244570
Filing Date: 2001-06-12
Classification: B66D

Abstract:
A high speed safety block assembly for use in stunt applications, comprising:a first cheek plate and second cheek plate, the cheek plates each having a top end and a bottom end, the cheek plates also each having an outer surface and an inner surface, the inner surface of each cheek plate having a recessed area with an axle hole located centrally therein, the first and second cheek plates each also having a pair of raised ear sections at top and bottom ends, the raised ear sections forming a slot between the ear and the inner surface of the cheek plates, such that, the ear sections on the first cheek plate interlock with the ear sections on the second cheek plate, the cheek plates also each having a hole through the ear sections at the top end, the outer surface of each cheek plate including said ear sections having a substantially complete planar surface;an axle having a bearing surface, the axle being positioned between the first and second cheek plates, and fitting within the axle holes on the first and second cheek plates; anda sheave positioned between the first and second cheek plates, the periphery of the sheave fitting closely within the recessed area of each cheek plate, the sheave having a central hole with a needle bearing fixed within the central hole, the needle bearing of the sheave fitting onto the bearing surface of the axle.