Patent ID: 7997390
Filing Date: 2011-08-16
Classification: F16D

Abstract:
1. In an industrial truck having a wheel, a service brake, and an emergency brake, a brake assembly comprising: a brake housing fixed on the truck adjacent the wheel; a wheel-brake disk rotatable in the housing about an axis, rotationally coupled to the wheel, and shiftable between a braking position bearing on the housing and a nonbraking position substantially out of engagement with the housing; a nonferromagnetic service-brake disk rotatable in the housing axially adjacent the wheel-brake disk and shiftable between an active position bearing axially on the wheel-brake disk and pressing same into the respective braking position and an inactive position substantially out of engagement with the wheel-brake disk; service-brake actuating means for shifting the service-brake disk between the respective engaged and inactive positions; a magnetically attractable emergency-brake disk rotatable in the housing axially adjacent the service-brake disk and shiftable axially between an active position bearing axially on the service-brake disk and pressing same against the wheel-brake disk and thereby pressing the wheel-brake disk against the housing and an inactive position substantially out of engagement with the wheel-brake disk; and an electromagnet in the housing energizable to shift the emergency-brake disk into the respective inactive position.