06-11-2014 дата публикации
Номер: US20140326586A1
A limit switch has a housing having an opening in a front surface of the housing, and a connection hole in which a lead wire is drawn made in a bottom surface of the housing, a switch main body fixed in the housing, a front surface of which is vertically partitioned into a plurality of stages, a pair of fixed contact terminals embedded at each of the stages, an operation shaft exposed from a ceiling surface of the switch main body, a contact that is opened and closed by driving the operation shaft in a shaft center direction, and a projection provided between the fixed contact terminals embedded at the stages of the front surface of the switch main body. 1. A limit switch comprising: an opening in a front surface of the housing, and', 'a connection hole in which a lead wire is drawn made in a bottom surface of the housing;, 'a housing comprisinga switch main body fixed in the housing, a front surface of which is vertically partitioned into a plurality of stages;a pair of fixed contact terminals embedded at each of the stages;an operation shaft exposed from a ceiling surface of the switch main body;a contact that is opened and closed by driving the operation shaft in a shaft center direction; anda projection provided between the fixed contact terminals embedded at the stages of the front surface of the switch main body.2. The limit switch according to claim 1 , wherein an outer circumferential surface of the projection comprises a shape along a wiring route of the lead wire.3. The limit switch according to claim 1 , wherein the fixed contact terminal located at an upper stage is arranged so as to be pushed out toward a near side from the fixed contact terminal located at a lower stage.4. The limit switch according to claim 1 , wherein an insulating wall is provided claim 1 , the insulating wall projecting toward the near side from an edge on at least one of both side surfaces of the switch main body.5. The limit switch according to claim 1 , wherein the lead wire in ...
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