Patent ID: 7340894
Filing Date: 2008-03-11
Classification: B60T,F16F

Abstract:
1. A spring device comprising a pair of retainer members coupled so that their axial length can be increased/reduced and a spring supported by these retainer members, said elements being formed into a unit that can be handled independently, wherein (A) each of said pair of retainer members is tubular in shape and hollow inside, and on the outer circumference of a first retainer member having a smaller diameter, a second retainer member having a larger diameter is fitted; (B) said first retainer member has a first outward claw portion at one end, said second retainer member has a second inward claw portion at one end, the second claw portion can move beyond the first claw portion to couple the first and second retainer members in the axial direction, and these first and second claw portions function to prevent one another from being pulled out in the coupled state; and (C) said first retainer member includes plural slits axially extending and dividing at least the side having said first claw portion, and thereby said first retainer member on the inner circumferential side is elastically deformed when said first and second retainer members are pressed against each other in the axial direction in order to couple them.