| 摘要 |
A combination which includes a housing having an inner wall, a helically coiled spring located within the housing and laterally spaced from the inner wall, apparatus connecting the spring to the housing so that the length of the spring changes in response to a change in loading on the spring, and apparatus which is movably connected to and extends tangentially of the spring for contacting the inner wall of the housing at radially spaced positions on the inner wall to maintain the lateral spacing between the spring and housing. Preferably, the apparatus which contacts the inner wall is a rectangularly-shaped member having four wall contacting portions. |
