JPS6235042Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to an optical connector device for connecting optical fibers, for example.

[Technical background of the invention and its problems]

FIGS. 12a and 12b show conventional optical connector devices, respectively. Figure a shows a so-called one-touch type optical connector device, and 101
is a connector that connects, for example, a light emitting element 102 and a plug body 104 to which an optical fiber 103 is attached. That is, this connector 101 is provided with a connection hole 105 for inserting and holding the plug body 104 and the light emitting element 102 facing each other, and also engages with the protrusion 106 of the plug body 104 to connect the plug body 1
Locking members 107 and 108 that prevent 04 from coming off are integrally formed.

In addition, FIG. 1B shows a screw type optical connector device, and 110 indicates, for example, a light emitting element 1.
11 and a plug body 113 to which an optical fiber 112 is attached. That is, this connector 113 is provided with a connection hole 114 for inserting and holding the plug body 113 and the light emitting element 111 facing each other, and a sleeve 115 provided on the plug body 113 is screwed into the plug body 11.
A threaded portion 116 is provided to prevent 3 from coming off.

By the way, the conventional connectors 101 and 1
No. 10 had the disadvantage that only a one-touch type plug or a screw-tight type plug could be connected, and a simple type plug could not be connected.

[Purpose of invention]

This invention was made based on the above circumstances, and its purpose is to provide an optical connector device that can connect one-touch type and screw-tight type connectors and is extremely convenient in practice. It is something to do.

[Summary of the idea]

This idea provides a small diameter part on the proximal end of the connection part of the connector into which the tip of the plug body is inserted, and a large diameter part on the distal end, and the large diameter part is attached to a screw-tight type plug. In addition to providing a threaded portion to be screwed into the sleeve, this threaded portion is provided with a guide surface for guiding the insertion of a one-touch type plug, and a one-touch type plug is inserted at the stepped portion located at the boundary between the large diameter portion and the small diameter portion. This type of plug is designed to prevent it from coming off.

[Example of idea]

An embodiment of this invention will be described below with reference to the drawings.

FIGS. 1 and 2 show connectors called adapters that connect plugs together. The connector 51 is composed of a base 52 that is attached to a panel or the like, and connection parts 53 and 54 provided on both sides of the base 52. These connecting portions 53 and 54 communicate with each other and are provided with a connecting hole 55 into which the tip of the plug is inserted. Further, the connecting portions 53 and 54 are provided with large diameter portions 56 and 57 at the distal end portions, small diameter portions 58 and 59 at the base end portions, and step portions 60 and 61 are provided at the boundaries between these portions. Around these large diameter portions 56 and 57 is a threaded portion 6 to which a screw tightening type plug is connected.
2, 63 are provided, and these threaded portions 6
At predetermined positions 2 and 63, there are tapered guide surfaces 64 and 6 for guiding the insertion of a one-touch type plug.
5 is formed. Note that a threaded portion 66 into which a nut is screwed is provided between the base end of the connecting portion 54 and the base 52 when the base 52 is attached to a panel, etc., and screws are inserted into both ends of the base 52. Mounting portions 67 and 68 are provided.

On the other hand, FIGS. 3 to 6 show an example of a one-touch type plug applied to this invention.

In FIGS. 3 to 6, a plug body 11 serving as a connecting body is composed of a distal end portion 12 and a proximal end portion 13. As shown in FIGS. The tip portion 12 has a cylindrical shape, for example,
This is an insertion section that is inserted into a connector that will be described later. A stepped portion 14 is formed at the boundary between the distal end portion 12 and the proximal end portion 13. Protrusions 15 and 16 are provided on both sides of the stepped portion 14 to engage with the tip of the connector and restrict rotation of the plug body 11 when the tip 12 is inserted into the connector. Further, as shown in FIG. 5, this plug body 11 has
The optical fiber 1 is connected by connecting the distal end 12 and the proximal end 13.
An insertion hole 18 into which 7 is inserted is formed. The diameter of this insertion hole 18 is slightly longer than the length from the tip surface of the tip end 12 to the core 1 of the optical fiber 17 shown in FIG.
7 ₁ , and the other portions are matched with the diameter of the optical fiber 17 including the coating 17 ₂ .

On the other hand, engagement members 1 are provided on both side surfaces of the proximal end 13 of the plug body 11 corresponding to the protrusions 15 and 16.
9 and 20 are rotatably attached. That is, a holding portion 22 having a through hole 21 is provided on both side surfaces of the base end portion 13.
As shown in FIG. 6, at both ends of the intermediate portions of the engaging members 19 and 20, there are supporting portions 24 having through holes 23 corresponding to both ends of the holding portion 22, respectively.
is formed. Then, by press-fitting the spring pins 25 shown in FIG. 6 into the through holes 21 and 23 with the holding portion 22 and the support portion 24 aligned, the engaging members 19 and 20 are rotatably attached. Further, between the proximal end portions of the engaging members 19 and 20 and the proximal end portion 13 of the plug body 11, there is provided an elastic member, for example, a long hole 26 that is engaged with the holding portion 22 as shown in FIG. A leaf spring 27 is provided to be engaged with both ends of the spring pin 25, and the leaf spring 27 constantly urges the tips of the engaging members 19 and 20 toward the tip 12 of the plug body 11. ing. Furthermore, protruding locking portions 28 are provided at the distal ends of the engaging members 19 and 20. In this locking portion 28, the angle of the sloped surface ₂₈₁ on the distal side is made looser than the angle of the sloped surface ₂₈₂ on the proximal side, so that low insertion and high retention force can be obtained. Further, as shown in FIG. 6, abutting portions 29 are formed at both ends of the proximal end portions of the engaging members 19 and 20, and these abutting portions 29 are provided on both sides of the proximal end portion 13 of the plug body 11. are located at both ends of the regulating portion 30. Therefore, the engaging members 19 and 20
is in contact with the regulating portion 30 and is prevented from rotating in the directions of arrows A and B in the figure, thereby preventing damage to the supporting portion 24.

Further, a recess 31 is formed in a side surface of the proximal end 13 of the plug body 11 adjacent to the engaging members 19 and 20 so as to communicate with the insertion hole 18, and an optical fiber is inserted into the recess 31. Seventeen fixing members 32 are press-fitted. As shown in FIG. 6, this fixing member 32 has claws 33 cut and raised on each side of a substantially inverted concave metal plate, and the tips of the claws 33 are bent so as to approach each other. There is. The distance between the tips of the claws 33 is the distance between the coating 17 ₂ of the optical fiber 17
and each side of the metal plate has a length _l1 of the optical fiber 17 covering _172.
The length of each claw portion 33 is made longer than the diameter including the diameter thereof, and is sufficiently separated from the optical fiber to ensure a sufficient length l ₂ of each claw portion 33. This fixing member 32 is attached to each claw portion 3.
3 is press-fitted into the recess 31 toward the tip 12 of the plug body 11, and in this state is positioned and fixed by the protrusion 34. In such a configuration, when the optical fiber 17 is inserted into the insertion hole 18 as shown in FIG. 4, each claw portion 33 of the fixing member 32 bites into the coating ₁₇₂ , and the optical fiber 17 is held so as not to come off.

Furthermore, a spacer member 35 for protecting the end surface of the core wire 171 of the optical fiber 17 is provided on the _distal end surface of the distal end portion 12 of the plug body 11. This spacer member 35 is made of a metal plate with a thickness of 0.05 to 0.1 mm,
A through hole 36 having approximately the same diameter as the insertion hole 18 is provided in the center, and an elastic engagement protrusion 37 is provided in the peripheral portion. This spacer member 35 can be attached with one touch by engaging the engagement protrusion 37 with the engagement recess 38 provided in the tip portion 12 of the plug body 11. At this time, the core wire 17 of the optical fiber 17
The _spacer member 35
space for the thickness of the board.

In the above configuration, the connecting portion 54 of the connector 51
When inserting the one-touch type plug shown in FIGS. 3 to 6, the tip 12 of the plug body 11 is inserted into the connection hole 55 of the connector 51, and the engaging members 19 and 20 are inserted into the guide of the connector 51. Just press it in line with the surface 65. In this way, the engaging member 19,
20 is pushed apart at its distal end against the biasing force of the leaf spring 27, and the locking portion 28 is engaged with the stepped portion 61.
FIG. 7 shows a state in which a plug is connected to the connecting portion 54 of the connector 51.

When removing the plug from the connector in this state, the proximal ends of the engaging members 19 and 20 should be
When the tips are moved closer to each other against the urging force of the locking portion 28 and the stepped portion 6
1 is released. Therefore, the plug can be easily pulled out.

Further, Fig. 8 shows a screw-tight type plug, and Fig. 9 shows this plug in the connector 51.
This figure shows a state in which it is connected to the connecting portion 54 of.
In FIGS. 8 and 9, 81 is the plug body 82.
This sleeve 81 is connected to the threaded portion 63 of the connecting portion 54. In addition, in the plug body 82, the same parts as in FIGS. 3 to 6 are given the same reference numerals.

According to the above embodiment, the connecting portion 5 of the connector 51
Small diameter portions 58 and 59 are provided at the proximal ends of 3 and 54, respectively, and large diameter portions 56 and 57 are provided at the distal ends of the sleeves, which are attached to screw-tight plugs. Threaded part 6 to be screwed together
2, 63, and the threaded portions 62, 6
3 are provided with guide surfaces 64 and 65 for guiding the insertion of a one-touch type plug, and the large diameter portion 5
The one-touch type plug is prevented from coming off by stepped portions 60, 61 located at the boundaries between the small diameter portions 6, 57 and the small diameter portions 58, 59. Therefore, it is extremely convenient because it can be connected with either a screw-tight type plug or a one-touch type plug.

Moreover, since the guide surfaces 64 and 65 are inclined so as to become narrower toward the distal ends of the connecting portions 53 and 54, it is possible to reduce the insertion force of the one-touch type plug.

Next, another embodiment of this invention will be described. FIGS. 10 and 11 show this invention applied to a connector called a receptacle that connects a plug and, for example, a generating element. This connector 71
basically has the same configuration as the connector 51 described above, the same parts are given the same reference numerals, and the different parts will be explained.

The connector 71 has the connecting portion 53 provided on one side of the base 72, and a holding hole 74 communicating with the connection hole 55 and holding the light emitting element 73 on the other side of the base 72. A plurality of protrusions 75 are formed on the inner circumferential surface of the holding hole 74 to abut against the outer circumferential surface of the light emitting element 73 and hold the light emitting element 73 in pressure contact. Furthermore, reference numerals 76 and 77 are mounting portions into which screws are inserted when mounting the base body 72 to a panel or the like.

Even with such a configuration, the same effects as in the above embodiment can be obtained.

Of course, various other modifications can be made without changing the gist of the invention.

[Effect of idea]

As described in detail above, according to this invention, it is possible to connect one-touch type and screw-tight type connectors, and it is possible to provide an optical connector device that is extremely convenient in practice.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an embodiment of the optical connector device according to this invention, Fig. 2 is a side sectional view of Fig. 1, and Figs. 3 to 6 are a one-touch type optical connector device applied to this invention. Fig. 3 is a plan view, Fig. 4 is a side sectional view, Fig. 5 is a sectional view with the optical fiber in Fig. 3 removed, and Fig. 6 is a diagram showing an example of the plug. Fig. 7 is a side view showing a state in which a one-touch type plug is connected to the connector of this invention, and Fig. 8 shows an example of a screw-tight type plug applied to this invention. , Fig. 9 is a plan view showing a state in which the sleeve is removed, Fig. 9 is a partially cutaway side view showing the state in which a screw-tight type plug is connected to the connector of this invention, and Figs. 10 and 11 are 10 is an exploded perspective view, FIG. 11 is a side sectional view of the main part of FIG. 10, and FIGS. 12a and 12b each show a conventional optical connector device. It is an exploded perspective view. 51, 71... Connector, 53, 54... Connection portion, 60, 61... Step portion, 62, 63... Threaded portion, 64, 65... Guide surface.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A connecting part having a connection hole into which the tip of a connecting body to which an optical fiber is attached is inserted, and a screw-tight type connecting body provided around the tip of this connecting part. a threaded portion into which the sleeve is screwed; a guide surface provided on the threaded portion for guiding the insertion of a one-touch type connector; and a one-touch type connector provided between the distal end and the proximal end of the connecting portion. An optical connector device comprising: an engaging portion that prevents a connecting body from coming off. 2. The optical connector device according to claim 1, wherein the engaging portion is a stepped portion.