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Title:
MULTIPLE-OPTICAL-AXIS PHOTOELECTRIC SENSOR AND SEALING MEMBER
Document Type and Number:
WIPO Patent Application WO/2014/103444
Kind Code:
A1
Abstract:
This multiple-optical-axis photoelectric sensor (12, 13) is equipped with: a transparent cylindrical case (22); an optical unit (16) that is inserted in the cylindrical case and forms multiple optical axes; an end cap (25) that includes a bottomed cylindrical fitting section (120), the outer peripheral surface of which, when the end cap is attached to an open-end section of the cylindrical case, faces the inner peripheral surface of the open-end section with a gap therebetween; and an elastic annular sealing member (24) that is interposed between the two mutually opposing peripheral surfaces of the open-end section of the cylindrical case and the fitting section of the end cap. The sealing member (24) has a first annular section (131) and a second annular section (132) that is connected to the outer periphery of the first annular section (131). The first annular section (131) includes an inner peripheral section having a nonlinear contour, and the second annular section (132) has a larger sectional area than the first annular section (131).

Inventors:
HOSHIBA, Takashi (Ltd. 2431-1 Ushiyama-ch, Kasugai-shi Aichi 01, 〒4860901, JP)
Application Number:
JP2013/074966
Publication Date:
July 03, 2014
Filing Date:
September 17, 2013
Export Citation:
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Assignee:
PANASONIC INDUSTRIAL DEVICES SUNX CO., LTD. (2431-1, Ushiyama-cho Kasugai-sh, Aichi 01, 〒4860901, JP)
International Classes:
H01H35/00
Foreign References:
JP2007157555A
JP2004176834A
Attorney, Agent or Firm:
ONDA, Makoto et al. (12-1, Ohmiya-cho 2-chome Gifu-sh, Gifu 31, 〒5008731, JP)
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