Patent ID: 6299113
Filing Date: 2001-10-09
Classification: A47B,A47C

Abstract:
A telescopic member, comprising:an outer cylinder;an inner cylinder slidably fitted into the outer cylinder in the axial direction;a lock mechanism, placed between the outer cylinder and inner cylinder, for locking relative movements therebetween;a braking chamber provided in either one of the outer cylinder or inner cylinder opposing to the other, the braking chamber having a taper surface providing a space that becomes narrower toward the relative sliding direction of the other cylinder; anda friction body, placed in the braking chamber, and which, when the other cylinder is relatively slidden, is allowed to move in the relative sliding direction with respect to the one cylinder, so that it is fitted between the taper surface and the other cylinder so as to apply a braking force to the relative movements between the cylinders,wherein the braking chamber is formed so that, when the friction body reaches a moving end in the relative sliding direction inside the braking chamber, it is allowed to roll between the taper surface and the other cylinder.