| 摘要 |
PROBLEM TO BE SOLVED: To check the display of a lock state or a non-lock state of a caster capable of locking the turn of a leg body and the rotation of a wheel by the response of a stopper spring caused by the turn of a stopper lever from the non-lock state by a simple configuration. SOLUTION: A wheel 3 is provided on a leg body 2 which is fixed to an attachment part B or turnable, and when a stop lever 4 is turned in the direction of an arrow D at a lever pivotably supporting part 5a of the leg body 2, the stopper spring 5 is turned by a spring supporting part 5a of the leg body 2, and the caster locks the turn of the leg body 2 by an attachment part side 5b and locks the rotation of the wheel 3 by a stopper lever side part 5c. In the non-lock state, a non-lock display surface 6a in a lock display plate 6 in a guide cavity 4c can be clearly seen from a display window 4b of the stopper lever 4. In the lock state, the lock display plate 6 anchored to the stopper lever side part 5c slides to the right within the guide cavity 4c, and only the lock display surface 6b is exposed to the display window 4b. COPYRIGHT: (C)2003,JPO |
