JPS5814432A - Optical fiber photoelectric switch - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention This beak relates to an optical 7-eyeper type photoelectric switcher used for detecting minute objects, etc.
- M - By fitting a gold JIA tube on the outside and making one end of the handle pipe have a flattened and wide end, the leading end of the optical fiber can be easily and accurately directed to the object to be detected. At the same time, the installation shape of the pipe ml
Our objective is to provide an optical fiber type photoelectric switcher that can hold 1 Wi-Fi.

Hereinafter, one embodiment of this i&beak will be described as IiIiw.

No. 1- and No. 21i show anti-a # shadow photoelectric switches.
This case 10 is made up of a t-sleeve body 100 and a cal-10 that are attached to each other with adhesive or the like.
1 or Spider Naru-11 has a new song form ras in the 1 character shape and goes inside %f! , 1 [%11.1 Easy is the customer and the light receiving element,
1 is an element holder, and 1s is a printed wiring board to which an operation display element 16 and the like are attached.

The element holder 14 is made of synthetic resin or the like and is open at one end.
I-shaped &: is formed to shield the locking part 141 formed on both shoes and the locking hole [11
1, it is firmly attached to the inside of the case body 1011 via this stiffening plate 11.

Inside the element holder 14, there are 11 kg and 71 elements arranged in upper and lower stages.
A recess 142.14 is formed in the front and back direction, and a pair of upper and lower protrusions 111E144, 14 are formed at one end.
1 &: d, No. elements 12, 1 &
Each element 12,1. ! lead terminal 12a,
By brazing the wiring board ISC 11 to the wiring board ISC, the light emitting and light receiving elements 12, 1j are integrally attached to the upper ε holder 14 together with the wiring board 1s, making it easy to incorporate them into the nurse main body 1111. During the first sW that can be performed, 148.149 is the above holder 1.
This is a through-hole which penetrates through each lead terminal 121.1s island of the light emitting and light receiving element 11.1.

1@' is an external lead-out cord with a bell wire ξ9 attached to the top-up wiring board 1S, and is placed one mII outside from the t formation C10m where the llllIC of the nurse 1@ is completed. This code 1
There may be no rubber between S and case 1. ■Convex backing 1! Power is installed in a liquid-tight manner by ・Pumupatsu Monday 19th large II and small 1111191.1?2C
Correspondingly, the above +-X10C is the edge gzo, z of the single strip.
t has been Liao II&.

These edges 1126. Yi 1 backing 1! The above-mentioned liquid writing effect is improved by digging into the area.

21.2M is an optical fiber, an optical fiber turtle! is the optical path that the light emitting element 1 hits and the light tube meets the object to be detected, the light 7 eyes! 1 is the optical path EL for transmitting the reflected light from the object to be detected through the light receiving element 11s. , 21 holding base,
21 is a specimen.

At the rear end of the holding base 240, the element WI! of the element holder 14 is mounted as shown in items 4w to 611. Electric concave new 142°14s
The convex portion 240 that fits into the mouth-shaped layer 146 that takes
III & II ha, the situation where they met! 41 has 7
The convex portion 140 of the holding base 24 has an eyelet insertion hole 242 formed therein. A 14-fatty filler recess is formed in the convex portion 140 of the holding base 24, which communicates with the eyelet insertion hole 242. 247
The positioning protrusion is located at the upper raised convexity 24@・, 150
is a notch formed in the upper umbrella 14 and fitted with the protrusion 240.

Above and below the plug body 2S are recesses 2 for filling with the resin.
Corresponding to the setting groove 244°24% formed in the upper and lower sides of 4s, that is the groove 2S1.1! ! 2 is formed and 8 are formed. These ditches! $1.2! ! 1-th each light 7 eyepa! !
, by inserting each end of the optical fiber 2&, 1S&, both the optical fibers 2! , 23 each one end ■Tube light emitting and light receiving element 1! .

15 can be easily opposed. For example, when the winter end portions ff1ls, fija of the optical 7 eyepers 22, 21 are fitted into the grooves 251, 211,
For those that are layered at a uniform rate like ie, a part of the groove 281 corresponding to the corner has a conical taper as shown in the 1st part, Tsutsuyuki g+, and 4th part. If the imperial order 1 is to be carried out and the damage caused by the bending of the light 7 eyelid 2s will be met, 4-1, article 2s #3 both sides Il&:
is in the horizontal groove 2s4゜2ss#l1ialflτ' Ca
Each end of the above two lights yy ipa 22゜2 black 112 glu, 21
Rintai number! While fitting into the SQ upper and lower grooves 281, 211, this specimen lse is raised with resin filling N. After entering 41C, Yokomizo 2 above! Either one of $4.21ti
If you inject the Evo war type tree j1!6 from 14 and fill it in the recess 24 ink, this tree J1! By changing the number to ■, Hikari Aaipa is 2! One end of the kudzu 11 to 111 is integrated into the holding base 24 together with the specimen 1s and the resin 16.
tc″JTh- Upper body holder! 4- Upper body holder and tree 11
By 16 light 7 eye pa,! Holder of s! a! ! -11. In this case - on the other side of the above - 'tss is tree I
It becomes an escape port for 1 ki when injecting 11, and for this reason, tree 11
The flow and quantity of ffi4 can be unified to a good level.

Both optical fibers 2 above! , 2M other end II lb.

2 Nose 1 is Case 10 Ren 110 Anchorage Tube 101 Hole 10
4 is derived from mII to one side, and 9 derived part 22%
, 25% of the C 7th W is inserted into a ZSC-enabled metal pipe made of stainless steel or sea bream. Figure 11), this metal pipe refers to the above light 7γ IPA 2, 2
91m (play) between each other end of M 11 times 1.2 times 1!
! It has an inner diameter such that it exists. In this example, the upper ti3 sky 1112? In order to hold J, an auxiliary pipe 50 with a small diameter c1 is used, but this g! lI
41iI holding means may be a spacer such as a resin instead of the auxiliary pipe sO. One end sigma of the above-mentioned tray pipe 2S is shaped into a flat end widening shape as shown in Figs. 7 and 8, and is attached to a holding base. The fitting recess 246d formed in the front leg filling recess 248#) of the base 24 is fitted into the fitting recess 246d.

Of course, one end gzsa of the metal pipe 2@ may be directly attached to the nurse 10 - sl is a raised metal pipe! S&: Anchor 1li1 of case 10 is inserted! Cylinder 110. It is a relatively hard rubber pad with a round anchor inserted in S, and at the end of #13II there is a cutout #13 which is thickened into the partition altos of case 1.
The terminal section 510 of jlaPi is folded into one piece. On the inner wall of this Pumupatsu battle, the inner wall of the above-mentioned anchor Kageso l110s is ring-shaped! 1111G6 is type r
am When the case body 101 and the cover 1 (l) are connected, the annular central portion 106 bites into the cone (■) of the rubber pad 51, and the rubber pad 1 is roughly elastically deformed, resulting in the o9 pad 1. Partition 11165, 8EII
L, , so that this part of -k is achieved.

In the above configuration, prior to the detection operation of the detected object,
Place the metal pipe 28 into #11! While holding the lightning 7, the W1 electric current is applied so that the other end surfaces of the eyeglasses xz and xs are accurately directed upward toward the object to be detected. In this state, when the light emitting element and the light receiving elements 11 and 1 are driven by AI, the light from the IA' optical element 1 passes through the optical fiber 22 and is irradiated onto the object to be detected. The presence or absence of the object to be detected can be detected depending on whether or not the reflected light from the inspection object 111 is received by the light receiving element 11I via the light beam.

Here, the optical fibers 22, 2! Even if it is flexible, the other m parts 22m, 2j! Since the metal pipe 28 is placed over the metal pipe 28, it is possible to hold the metal pipe 2I without preparing a holding means.
The other end of the 21 can be precisely oriented to the object to be examined, and the raised metal pipe 28 has both parties 7 completed IPA 2,
2ies may be fitted, but as in this example, between the metal pipe 2@ and jt7A4t422.1SkfJ,
If 111291 exists, even if the bending operation of S to face the detected object is performed all at once, the upper etllW1
This metal pipe 28 can be effectively prevented from breaking due to play in the metal pipe 19. In particular, since the one-end engaging portion 26& of the metal pipe 28 is formed in a flat end-widening shape, it is not only stopped in the direction of the imaginary axis of the pipe 1 but also in the shoulder wall h-. By bending the holder 2
They can meet each other by keeping them fixedly held in the field.

No. 1011 shows a modified example of the metal pipe 2s, with a thick wall portion 5 for reinforcement on the side of the engaging portion 21m at one end! The mechanical strength of this 1 minute portion is strengthened by the presence of . In this embodiment, the thick portion S! This is the same as the metal pipe 2-
It may be formed into one piece.

-The 1111th is a metal pipe! 8 is shown, and the center 11 of the jar metal bar of amount □ (the grid-like part of the gill) is shown.
Ni, jiII! II Possible - A display to display the range IIIA tube is provided to serve as a guide during bending operations, so this display @is can be easily done by painting, taping, etc. .

The above embodiment is explained using a reflective photoelectric switch that uses a 12°1 black light emitting and light receiving element, but any photoelectric switch that has a small number of elements (or one of them) can be used. They meet in application.

As described above, the present invention is directed to the "light 7" led outside.
Since the upper lead-out end of the fiber is externally fitted inside the flexible metal λ-bbe supported by a nurse or a holder, the light-7γ ipaO lead-out end can be held with a special holding hand. The end surface of the metal pipe can be accurately and easily directed to the object to be detected without using an ife, and in particular, since one end of the metal pipe is formed into a flattened shape, the installation state of the pipe can be made more secure. can be retained.

[Brief explanation of drawings]

1 and 2g are a cross section 111w and an exploded perspective view showing an example of an optical fiber photoelectric switcher according to the present invention, respectively, and 841g is a perspective view showing an element holder and a wiring board.
411 is a diagonal II view showing the optical 7 eyer holder, and FIG. 5 is a cross section mw of the optical fiber holder holding the optical fiber
i, 4th WI is the rear l1iWi of the same holder - Fig. 7 is a partially broken side view showing an example of a metal pipe, Fig. 6 is a rear view of the same metal pipe, and Fig. 9 corresponds to the metal pipe. 10 and 1111 are enlarged cross-sectional views of the para-middle part, metal pipe members 10-Nasu 12-Ji optical element, 15-*
Optical element, 2x, xi - Optical fiber, 22m, 23m - Optical 7 eye xx'i*xsa+ One end m, 22, 2x% -
- Each lead-out end of optical 7 eyepah x'i, zs, 27-・light 7
Eyepa holding body %2s-Metal pipe h2@h-Metal pipe 21#) One end (flat part) Fig. 3 Fig. 4 Fig. 7 If, Fig. 6

Claims (1)

[Scope of Claims] (A case containing one of the 13 light-emitting and light-receiving elements, and 1 SS holding one end of the 7 pieces of light led out to the outside. , a Hikari 7 eyer holder for positioning one end of the Hikari 7 eyer at a position where it is in the stomach with the element, and a tm-capable metal pipe fitted externally to the lead-out end of the Hikari 7 eyer; One end of the pipe is flattened into a shape with a wide end, and this flat end 11
Et Optical fiber type photoelectric swift attached to the above-mentioned nurse or optical 7 eyeper holder. Section 1: The Light of Light 7 Aipa-type Photoelectric Switches. (j) External lead-out portion C2 of Kamishi metal pipe Flexible range of this pipe! The optical switch according to claim 1 or 2 ia*, which is provided with a display section that displays II &