Patent ID: 11920698
Assignee: SMC CORPORATION
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 1:
2. The flow control valve according to claim 1, wherein
the clutch drive mechanism includes
a cam surface provided so as to be fixed to the body and extending annularly around the axis, and
a cam copying projection that is provided on the shaft portion and disposed opposite the cam surface and that rotates around the axis to slide on the cam surface with rotation of the knob,

the cam surface has
a cam hole extending through in the axial direction, and
a cam flat part extending in a planar shape from one-side end of the cam hole in the axial direction so as to face one side in the axial direction, and

the clutch drive mechanism releases engagement between the engaged portion and the engaging portion by the cam copying projection moving into and engaging with the cam hole each time the knob is rotated by a predetermined angle, and permits rotation of the scale reading part around the axis with respect to the scale body through rotation of the knob.