JPS63187237U

JPS63187237U -

Info

Publication number: JPS63187237U
Application number: JP7900787U
Authority: JP
Priority date: 1987-05-26
Filing date: 1987-05-26
Publication date: 1988-11-30
Anticipated expiration: 2002-05-26
Also published as: JPH0650926Y2

Description

[Brief explanation of the drawing]

第１図はこの考案にかかる反射型光電スイツチ
の一実施例の要部をあらわした断面図、第２図ａ
，ｂはその受光用レンズをあらわし、同図ａはそ
の平面図、同図ｂはその正面図である。第３図ａ
，ｂはこのレンズがレンズ保持部材に組み込まれ
た様子をあらわし、同図ａは同図ｂのＡ−Ａ線の
断面図、同図ｂは側面図、第４図はレンズを上下
に微調整する時の様子をあらわした斜視図、第５
図は第４図のＢ矢視図、第６図は第４図のＣ矢視
図、第７図は従来の反射型光電スイツチの要部断
面図、第８図はその検知可能領域がばらつく様子
を説明する模式図、第９図は操作部材の操作範囲
がばらつく様子を説明するための模式図である。１……光電スイツチ、２……投光用レンズ、３
……受光用レンズ、４……発光素子、５……受光
素子、６……被検知物体、７……操作部材、８…
…レンズ保持部材。 Figure 1 is a sectional view showing the main parts of an embodiment of the reflective photoelectric switch according to this invention, and Figure 2a.
, b represent the light-receiving lens; FIG. Figure 3a
, b shows how this lens is assembled into the lens holding member, figure a is a sectional view taken along line A-A in figure b, figure b is a side view, and figure 4 shows fine adjustment of the lens up and down. Perspective view showing the situation when
The figure is a view in the direction of arrow B in Figure 4, Figure 6 is a view in the direction of arrow C in Figure 4, Figure 7 is a sectional view of the main part of a conventional reflective photoelectric switch, and Figure 8 shows the variation in the detectable area. FIG. 9 is a schematic diagram illustrating how the operating range of the operating member varies. 1...Photoelectric switch, 2...Lens for light projection, 3
...Lens for light reception, 4 ... Light emitting element, 5 ... Light reception element, 6 ... Object to be detected, 7 ... Operation member, 8 ...
...Lens holding member.

Claims

[Scope of utility model registration request]

The light emitting optical system is provided with a light emitting optical system and a light emitting element, and the light emitting optical system projects the light of the light emitting element onto a detectable area, and the light receiving optical system and a light receiving element are provided, and the light emitting element is emitted into the detectable area. Object detection is performed by causing a light receiving element to detect light reflected by an object to be detected existing in the light receiving optical system, and the relative positional relationship between the optical system and the optical element is detected. The sensor is provided with an adjusting means for changing the distance of the detectable area to nearer or nearer, and the adjusting means changes the positional relationship by moving the lens holding member of one of the optical systems. In the photoelectric switch, the photoelectric switch also includes an operation member that engages with the lens holding member so that the movement occurs when the photoelectric switch is operated, and the lens of one optical system is connected to the same member with respect to the lens holding member. A reflective photoelectric switch characterized in that positioning is performed by finely adjusting the direction of movement of the switch.