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Multi-axis photoelectric sensor

A photoelectric sensor and multi-optical axis technology, which is applied in the exploration of optical devices, etc., can solve the problems of weak chemical resistance and the inability to keep the light-transmitting plate and the shell close together, and achieve the effect of stable sealing

Active Publication Date: 2019-06-21
ORMON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] However, in Patent Document 1, the chemical resistance of the double-sided adhesive tape member is weak, so when the chemical acts on the double-sided adhesive tape member, there is a problem that the light-transmitting plate cannot be kept in close contact with the housing, and thus cannot be stabilized. The problem of sealing the inside of the frame

Method used

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  • Multi-axis photoelectric sensor

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Embodiment Construction

[0057] Hereinafter, embodiments of the multi-optical axis photoelectric sensor of the present invention will be described with reference to the drawings. figure 1 The appearance of the multi-optical axis photoelectric sensor 1 is shown. The multi-optical axis photoelectric sensor 1 has a configuration in which a light projector 10 and a light receiver 20 are arranged facing each other with a predetermined interval therebetween. In addition, in the present invention, the opposite sides of the light projector 10 and the light receiver 20 are referred to as the front (front), and the opposite sides are referred to as the rear (back).

[0058] The light projector 10 and the light receiver 20 are respectively inside the substantially rectangular parallelepiped frame body 2, except for an optical unit ( Not shown), a control board (not shown) and the like are accommodated. A plurality of optical units arranged in the longitudinal direction are accommodated in the housing 2 . The ...

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Abstract

A light projector (10) and a light receiver (20) each includes a case body (3), a light transmission plate (4) closing an opening in a front face of the case body (3), and a pair of caps (5) closing openings in end faces of the case body (3). The case body (3) includes first supports (35) supporting side edges of the light transmission plate (4), the caps (5) respectively include second supports (53) supporting ends of the light transmission plate (4), the light transmission plate (4) is supported by the first supports (35) and the second supports (53) with an elastic member interposed between the light transmission plate (4) and the first and second supports (35, 53), and the cap (5) is fixed to the case body (3) while the seal member abutting on the end face of the case body (3) is interposed between the cap (5) and the case body (3). A cured liquid sealing agent is interposed between leading ends of the seal member and the elastic member.

Description

technical field [0001] The present invention relates to a multi-optical axis photoelectric sensor which sets a plurality of optical axes between a light projector and a light receiver arranged opposite to each other, and detects the presence or absence of an object by detecting the light blocking state of each optical axis. Background technique [0002] The light emitter and the light receiver of the multi-optical axis photoelectric sensor each have a structure in which a plurality of optical units including optical elements and a control board are accommodated inside a rectangular parallelepiped housing. The frame body is mainly composed of a shell, a pair of covers and a light-transmitting plate. The above-mentioned shell has openings on the front and both ends. The above-mentioned pair of covers respectively block the openings on the two ends of the shell. front opening. [0003] When the multi-optical axis photoelectric sensor is installed in a place where dust or liqui...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V8/20
CPCG01V8/20
Inventor 西内智福本哲也泷口展亲山路卓雅
Owner ORMON CORP
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