JPS63187238U

JPS63187238U -

Info

Publication number: JPS63187238U
Application number: JP7900887U
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: JPH071717Y2

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
チの一実施例を組立てる時の様子をあらわす斜視
図、第２図は、組立て直後の状態をあらわす断面
図、第３図ａ，ｂは、回転伝達部材をあらわし、
同図ａはその平面図、同図ｂはその正面図である
。第４図は、従来の反射型光電スイツチを組立て
る時の様子をあらわす斜視図、第５図はそれを組
立後の状態をあらわす断面図である。１……投光用レンズ、２……投光側ホルダ、３
……受光用レンズ、４……受光側ホルダ、５……
本体ケース、６……回転伝達部材、６ｂ……カム
、６ｃ…補助カム、７ａ……係合溝、１０……ば
ね。 Fig. 1 is a perspective view showing how an embodiment of the reflective photoelectric switch according to this invention is assembled, Fig. 2 is a sectional view showing the state immediately after assembly, and Figs. 3 a and b are rotational views. Representing the transmission member,
Figure a is a plan view thereof, and figure b is a front view thereof. FIG. 4 is a perspective view showing how a conventional reflective photoelectric switch is assembled, and FIG. 5 is a sectional view showing the state after assembly. 1... Light projection lens, 2... Light projection side holder, 3
...Lens for light receiving, 4... Light receiving side holder, 5...
Main body case, 6... Rotation transmission member, 6b... Cam, 6c... Auxiliary cam, 7a... Engagement groove, 10... Spring.

Claims

[Scope of utility model registration request]

A light emitting side holder equipped with a light emitting lens and a light receiving side holder equipped with a light receiving lens are incorporated into the main body case as one unit, and one of the two holders is provided with a rotation transmission member. is,
A helical cam provided on the rotation transmission member engages with the other holder so that the rotation of the rotation transmission member causes the other holder to move linearly with respect to the mating holder; In a reflective photoelectric switch in which a spring is attached to the holder, and one end of the spring is received by the main body case so that the holder is always biased in one direction, the spiral cam is configured to respond to the other holder within a rated range defined as a detection area variable range, and an auxiliary cam that engages with the other holder outside the rated range is provided continuously to the cam. A reflective photoelectric switch characterized in that when the other holder is engaged with the auxiliary cam, the spring is at its natural length.