公开(公告)号：US20240105406A1

公开(公告)日：2024-03-28

申请号：US18273691

申请日：2021-03-11

Applicant: OMRON Corporation

Inventor： Kouhei YOSHIDA ,  Kazuyuki TSUKIMORI ,  Sho OGAWA ,  Mamoru ITO ,  Masato MATOBA

IPC: H01H21/28

CPC classification number: H01H21/28 ,  H01H2021/287

Abstract: A limit switch includes: a switch main body capable of being switched on and off; and an operation unit connected to the switch main body. The operation unit includes: a housing having a box shape; a shaft portion including a shaft main body and a cam portion the shaft main body being supported by the housing in a state of being rotatable forward from a return position toward a first operation position around a rotation axis extending in the first direction and being rotatable backward from the return position toward a second operation position opposite to the first operation position with respect to the return position, the cam portion being provided in the shaft main body located inside the housing and being configured to rotate forward and backward together with the shaft main body; a biasing portion configured to return the shaft main body to the return position; and a plunger configured to move in the second direction by rotation of the cam portion to switch on and off of the switch main body, and configured to be able to set an operation mode from either one-side operation or both-side operation.

公开(公告)号：US20230078664A1

公开(公告)日：2023-03-16

申请号：US17942448

申请日：2022-09-12

Applicant: OMRON Corporation

Inventor： Kouhei YOSHIDA ,  Kazuyuki TSUKIMORI ,  Sho OGAWA

IPC: H01H21/34 ,  H01H21/48

Abstract: A limit switch includes: a switch main body; and an operation unit connected to the switch main body. The operation unit includes: a housing; a shaft member, a biasing member; and a plunger. The shaft member includes a shaft body supported by the housing in a manner rotatable from a return position to an operation position around a rotation axis, and a cam. The plunger includes: a plunger body; and at least one contact portion. The at least one contact portion includes a recess positioned on a facing surface facing the at least one protrusion and recessed in a direction moving closer to the switch main body. The recess includes: a first end; a second end; and an inclined surface. The inclined surface is inclined in a direction moving closer to the switch main body as the inclined surface extends from the second end to the first end.