Patent ID: 8536510
Filing Date: 2013-09-17
Classification: G01V

Abstract:
1. A multi-optical axis photoelectric sensor comprising a projector and an optical receiver each having an outer shape formed by a casing including a frame body, a pair of caps, and a light transmissive plate, a front surface and both end surfaces of the frame body being opened, the caps closing the opened end surfaces of the frame body, and the light transmissive plate closing the opened front surface of the frame body, wherein a long support extends along a corresponding side edge of an opening of the front surface is formed in an inner surface of each side plate of the frame body, the side edges of the light transmissive plate are supported by each support of the frame body, the end portions of the light transmissive plate are supported by the caps, respectively, a communication portion communicating with each support of the frame body is included in a portion of the cap, which supports the light transmissive plate, a string-like elastic member is disposed to go around a closed loop including each support of the frame body and the communication portion of each cap, and the light transmissive plate is sandwiched and held between at least one of fixing members and the string-like elastic member, the fixing members being disposed with respect to the frame body and the caps.