Patent ID: 11942286
Assignee: PHOENIX CONTACT ASIA-PACIFIC (NANJING) CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 18:
19. The rotary knob switch according to claim 12, wherein the bottom of the knob head comprises a protrusion shape, and the cam comprises a groove inside it, when assembled, the protrusion shape of the bottom of the knob head is capable of snapping into the groove in the cam to prevent reverse assembly, and
the knob head on the side comprises structure with a hole, an inner side of the cam comprises a barb, the structure with the hole of the knob head with is capable of being barbed to the barb of the cam, to prevent the relative up-and-down movement between the knob head and the cam.