Patent ID: 6334600
Filing Date: 2002-01-01
Classification: B60N,Y10S

Abstract:
A stepless slide adjuster having a safety lock, comprising:a first member and a second member, which can move relatively to each other; a nut fastened to the first member; a screw rotatably attached to the second member and screwed into the nut; a manual locking device for manually locking the screw; and an emergency locking device comprising a brake drum and brake shoes for emergency locking the screw; wherein a lead angle of the nut and the screw is larger than a friction angle therebetween, and when locking with the manual locking device is released, and the screw rotates with an acceleration or a speed that exceeds a predetermined value, then the brake shoes spread and frictionally engage the brake drum, thereby impeding a relative movement between the first member and the second member.