JPH01204009A - Optical multiconnector - Google Patents

Abstract

PURPOSE:To easily make a connection and to make the multiconnector compact by forming a specific number of stepped holes and fitting light emitting and receiving elements to large-diameter ends of the stepped holes while fitting sleeves for optical cables to small-diameter ends, and using a light emitting and receiving element holder which has grooves for storing the bent parts of the sleeve holders at both edges. CONSTITUTION:Pins of light emission components 10 such as light emitting diodes are set in spacers 9, the light emission components 10 are fitted together in the large- diameter ends of through holes of the light emission component holder 1, and both end parts of a base member 3 are fixed to the light emission component holder 1 with screws 8. Reinforcement tubes 5 for the optical cables are inserted into slits of the sleeve holder 2, and the tip small-diameter parts of the sleeves 4 are fitted in the small-diameter ends of the through holes of the light emission component holder 1. Then, the bent parts at both ends of the sleeve holder 2 are slid into the grooves at both ends of the light emission component holder 1 and the sleeve holder 2 is fixed to the light emission component holder 1 with the screws 8. Thus, the light emission parts of the light emission components 10 are coupled with the end surfaces of optical fiber element wires 6.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a plurality of optical cables (or optical cords, the same shall apply hereinafter).
This invention relates to an optical multi-connector that connects single-core sleeves.

(Prior Art) Conventionally, discrete type optical connectors that connect optical cables individually have been put into practical use. Optical connectors are also used to connect optical cables and light emitting elements or light receiving elements. Optical connectors include single-fiber optical connectors and multi-fiber optical connectors.

(Problem to be solved by the invention) However, in applications that use a large number of light receiving and emitting elements, connecting multiple optical cables with single-core connectors increases the number of components, is complex, requires a large mounting space, and is costly. Furthermore, there is the problem that it requires a lot of effort to connect each individual fiber, and even if it is connected with a multi-fiber optical connector, there is no similar multi-fiber optical connector with a small number of parts and a simple configuration. There is a problem.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide an optical multi-connector that has a simple configuration, has a small number of parts, is compact and inexpensive, and is easy to connect.

(Means for Solving the Problems) In order to achieve the above object, the present invention has a predetermined number of stepped holes, and a light emitting/receiving element is fitted into the large diameter end of the stepped hole. An optical cable sleeve is fitted to the end, a light receiving/emitting element holder having a predetermined through hole at both ends and a groove for accommodating the bent part of the sleeve holder at both ends, and a reinforcing tube for the optical cable terminal. It has a predetermined number of slits that can be inserted from one side, bent portions are formed at both ends, and a predetermined through hole, and an elastic ring is inserted into the large diameter portion of the sleeve of the optical cable terminal to connect the light receiving and emitting light. a sleeve holder fixed to the element holder; a spacer having a predetermined number of notches for setting the light receiving and emitting elements and having a predetermined through hole at both ends; and a spacer having a predetermined opening corresponding to the notch and having a predetermined hole at both ends. a base member having a pair of through holes for fixing the spacer to the light receiving/emitting element holder; and a base member inserted through the predetermined through hole to screw and fix the sleeve holder and the base member to the light receiving/emitting element holder. An optical multi-connector comprising a threaded member is provided.

(Function) Set a predetermined number of light emitting elements or light receiving elements in the spacer, insert the light emitting elements or light receiving elements into the large diameter end of the stepped hole of the light receiving/emitting element holder, cover the base member from above, and screw the This base member is fixed to the receiver/emission element holder by screwing the mating member into the through hole of the receiver/emission element holder, and on the other hand, the reinforcing tubes of a predetermined number of optical cable terminals are inserted into the slits of the sleeve holder to secure the ends of the optical cables. After inserting the sleeve into the small diameter end of the mounting hole of the light receiving/emitting element holder, insert the sleeve holder with the threaded member while fitting the bent portions at both ends of the sleeve holder into the grooves on both edges of the light receiving/emitting element holder. Fix it to the light receiving/emitting element holder. In this way, the optical cable and the light receiving/emitting element are simply and easily connected.

(Example) Hereinafter, an example of the present invention will be described in detail based on the accompanying drawings.

FIGS. 1(A) and 1(B) are a front view and a side view, respectively, showing an embodiment of the optical multi-connector for a light emitting element of the present invention, including a light emitting component holder 1, a sleeve holder 2, a base member 3, and a spacer. 9 and screws 8, the light emitting component holder 1 is made of brass or the like whose surface is nickel plated, and as shown in FIG. A pair of through holes tb that screw together with screw 8
, and a groove IC for a bent portion of the sleeve holder 2, which will be described later. The small diameter end is counterbored to facilitate insertion of the sleeve 4. The sleeve holder 2 is made of 5PCC etc. whose surface is nickel-plated, and as shown in FIG. It has a pair of penetrating holes 2b and bent portions 2C at both ends that are fitted into grooves IC of the light emitting component holder 1. Base member 3 is 5pc with nickel plated surface.
As shown in FIG. 9, both edges are bent in a U-shape, and a predetermined number of rectangular through holes 3a, a pair of through holes 3b through which screws 8 provided at both ends are passed, and a pair of mounting holes 3C provided on the outside thereof.

The spacer 9 is made of neoprene rubber or the like, and, as shown in FIG. 10, has a predetermined through cut 9as and a pair of through holes 9b through which the screws 8 provided at both ends pass.

FIGS. 2(A) and 2(B) are a front view and a side view, respectively, showing an embodiment of the optical multi-connector for a light receiving element of the present invention. The optical multi-connector for the light-receiving element has approximately the same configuration as the optical multi-connector for the light-emitting element shown in FIG. It consists of a sleeve holder 2' similar to the base member 3 in FIG. 9 and the spacer 9 in FIG. 10, a base member 3°, a spacer 9°, and a screw 8. The large diameter portion of the through hole 11a of the light-receiving component holder 1'' in FIG. 7 is formed for a light-receiving component.

Next, the assembly procedure of the optical multi-connector of the present invention will be explained with reference to FIGS. 1 to 5.

Since the optical multi-connector for the light-emitting element and the optical multi-connector for the light-receiving element have substantially the same structure, the assembly of the optical multi-connector for the light-emitting element will be described. A multi-core optical cable, for example, a 32-core optical cable 14 for indoor wiring illustrated in FIG. There is. The ends of the multi-core optical cable 14 are usually cut at the factory so that the ends of each unit wire have a step in order to have a small diameter. As shown in an enlarged view in FIG. 4, a reinforcing tube 5 made of a color code and mechanically protecting the optical fiber strand 6 is inserted into the tip of each optical fiber strand 6 in each unit line. A sleeve 4, which is a terminal plug for connecting to a light emitting/receiving component to be described later, is fitted into the tip. As shown in cross section in FIG. 5, an optical fiber wire 6 is fitted into the sleeve 4 made of brass or the like and fixed with an adhesive 15, and a reinforcing tube 5 is similarly inserted into the large diameter hole of the sleeve 4. It is inserted and fixed with adhesive. The tip of the sleeve 4 is finished by optical polishing or the like. Reinforcement tube 5 adjacent to sleeve 4
An elastic ring 7 made of rubber, plastic, etc. is fitted around the outer periphery of the tip.

After passing the bottles of light-emitting components 10 such as light-emitting diodes through the notches 9a of the spacer, take out the bottles of 1° of light-emitting components from the rectangular opening 3a of the base member 3, align the positions, and set the light-emitting components 1o together. Through hole 1 of light emitting component holder 1
The base member 3 is fitted onto the large diameter end of the base member 3, and then both ends of the base member 3 are fastened to the light emitting component holder 1 with screws 8. On the other hand, the reinforcing tubes 5 of the optical cable are fitted into the sleeves 2a of the sleeve holder 2 from one side, and then the small diameter end of the sleeve 4 is fitted into the small diameter end of the through hole 1a of the light emitting component holder 1. At this time, the bent portions 2c at both ends of the sleeve holder 2 slide downward within the grooves lc at both ends of the light emitting component holder 1. Thereafter, the screws 8 are passed through the pair of holes 2b at both ends of the sleeve holder 2, and the screws 8 are screwed into the through-holes 1b of the light-emitting component holder I to fix the sleeve holder 2 to the light-emitting component holder 1. At this time, the sleeve 4 is closely fixed to the light emitting component holder l by the sleeve holder 2 via the elastic ring 7 shown in FIG. In this way, the light emitting part of the light emitting component 10 and the end surface of the optical fiber strand 6 are coupled.

After this, the optical multi-connector for the light emitting element is attached to the base member 3.
It is fixed at a predetermined position of the optical system by passing screws or the like through the pair of mounting holes 3c. It can also be assembled by modifying the procedure described above. Optical multi-connectors for light-receiving elements such as photodiodes are assembled in the same manner. Conventionally, there has been no optical multi-connector that connects a plurality of optical fibers and light emitting/receiving elements in this way.

(Effects of the Invention) As explained above, according to the present invention, a predetermined number of stepped holes are provided, and a light emitting/receiving element is fitted into the large diameter end of the stepped hole, and an optical cable sleeve is fitted into the small diameter end of the stepped hole. The light emitting/receiving element holder, which has a predetermined through hole at both ends and a groove on both edges to accommodate the bent part of the sleeve holder, and the reinforcing tube of the optical cable terminal can be inserted from one side. a sleeve having a predetermined number of slints, bent portions at both ends, and a predetermined through hole, the large diameter portion of the sleeve of the optical cable terminal being fixed to the light receiving/emitting element holder through an elastic ring; a holder; a spacer having a predetermined number of notches for setting the light receiving and emitting elements and having predetermined through holes at both ends;
a base member having a predetermined opening corresponding to the cut and a pair of predetermined through holes at both ends and fixing the spacer to the light receiving/emitting element holder; and a sleeve holder that is inserted through the predetermined through holes. and a screwing member for screwing and fixing the base member to the light receiving/emitting element holder, the structure is simple, the number of parts is small, the mounting space is small, and the connection work can be easily done all at once. The effect is that it does not take much time to perform.

[Brief explanation of the drawing]

1(A) and (B) are respectively a front view and a side view showing an embodiment of an optical multi-connector for a light emitting device of the present invention, and FIGS. 2(A) and (B) are respectively a light receiving device of the present invention. Front view and side view showing an example of an optical multi-connector for devices, Part 3
The figure is a schematic diagram illustrating the shape of the terminal of a multi-core optical cable, Figure 4 is an enlarged plan view of the tip of the terminal in Figure 3, and Figure 5 is the
Enlarged sectional view of the tip of the terminal shown in Figure 6 (A) and (B)
7(A) and (B) are a plan view and a partially sectional front view of the light receiving component holder 1 shown in FIG. 2, respectively. Figure 8 (A
) and (B) are respectively a plan view and a front view of the sleeve holder 2 in FIG. 1, FIGS. 9(A) and (B) are a plan view and a side view, respectively, of the base 3 in FIG. 1, and FIG. 2 is a plan view of the spacer 9 of FIG. 1. FIG. 1... Light-emitting component holder, 1゛... Light-receiving component holder,
2.2"... Sleeve holder, 3.3°... Base member, 4... Sleeve, 5... Reinforcement tube, 6...
... Optical fiber wire, 7... Elastic ring, 8... Screw, 9.9°... Spacer, 10... Light emitting component, 1
2... Light receiving component, 14... Optical cable, 15...
glue.

Claims (1)

[Claims] It has a predetermined number of stepped holes, a light emitting/receiving element is fitted into the large diameter end of the stepped hole, an optical cable sleeve is fitted into the small diameter end, and a predetermined through screw hole is provided at both ends. A light emitting/receiving element holder having a groove on the edge for accommodating the bent part of the sleeve holder, a predetermined number of slits into which the reinforcing tube of the optical cable terminal can be inserted from one side, bent parts formed at both ends, and a predetermined number of slits into which the reinforcing tube of the optical cable terminal can be inserted from one side. a sleeve holder for fixing the large diameter part of the sleeve of the optical cable terminal to the light receiving/emitting element holder by inserting an elastic ring; and a predetermined number of notches for setting the light receiving/emitting element; a base member having a predetermined opening corresponding to the notch and a pair of predetermined through holes at both ends for fixing the spacer to the light receiving/emitting element holder; An optical multi-connector comprising: a threading member inserted into the predetermined through hole and threadingly fixing the sleeve holder and the base member to the light receiving/emitting element holder.