| 摘要 |
PURPOSE:To change and assembly a roller and levers simply and easily with only the operation of one part of an intermediate part of the longitudinal direction of the levers by providing a screw connecting member between both levers. CONSTITUTION:Each lever 11 is connected to both ends of an operating rod 4 comprised in a head 5, and intermediate parts of the longitudinal direction of both levers 11 of a limit switch with center roller lever, which is equipped with a roller 12 between the tips of both the levers 12 facing to each other, is formed freely to be connected by a screw connecting member 17. The roller 12 is supported by a projection and recessed part fitting mechanism freely to be rotated loose between the tip of each lever 11, and each different diameter part 4b is formed in both projecting ends of the operating rod 4, and different diameter holes 13 formed in the base ends of both the levers 11 are fitted in the different diameter parts 4b freely to transmit the torque. The levers 11 are thereby separated from the operating rod 4 of the head 5, and while the roller 12 can be removed between the levers 11, and the base ends of the levers are fitted to the operating rod 4 freely to transmit the torque, and the roller 12 can be installed between the levers 11 freely to be rotated loose.
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