| 摘要 |
<p>A telescoping device (10), comprising a first tubular body (11) and a second tubular body (12); the first tubular body (11) further comprising a first tubular base body part (16) having projected parts (17) installed projectedly on the internal surface thereof ranging from one end side in tube axis direction to the other end side in tube axis direction, the second tubular body (12) allowed to move forward and backward relative to the first tubular body (11) further comprising a second tubular base body part (27) having rotation limiting parts (28) for limiting the rotation of the second tubular body (12) by the contact thereof with the projected parts (17) installed projectedly on the outer surface thereof, wherein the projected dimension of the projected parts (17) is generally the same as that of the rotation limiting parts (28).</p> |
