KR20030086204A - Optical connector socket - Google Patents

Abstract

Provided is an optical connector socket having a shutter having a structure in which each component can be formed using a mold having a simple structure and which does not increase the number of parts.

A rear support surface 21 and a front support surface 22 for supporting the optical element 18 in a state of being sandwiched by a socket body 3 composed of the front housing 1 and the rear housing 2, and a plug insertion hole 9 for guiding the plug 13 to the optical element 18. And an openable shutter 4 arranged in the opening 10 of the plug insertion port 9, and the shutter 4 is integrally formed on the shutter main body 5, the hinge shaft 6 integrally constituting the shutter body 5, and the rear surface of the shutter main body 5. An optical connector socket comprising a spring support shaft 7 and a torsion coil spring 8 attached thereto, the torsion coil spring 8 contacting the engagement extension portion 8b to the engagement recess 17 and the slide extension portion 8c contacting the containment slide surface 30. to be.

Description

Optical connector socket {OPTICAL CONNECTOR SOCKET}

BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to optical connector sockets, particularly rectangular optical connector plugs, which are provided in elements for inputting and outputting digital signals handled by such equipment in various AV equipment, optical data transmission equipment, and the like. The present invention relates to an optical connector socket for connecting to a plug).

In this kind of optical connector socket, a light-receiving element or a light-emitting element and a plug supported by an electron are inserted optically by inserting a plug of the optical connector into a plug insertion hole thereof. The aim is to achieve the desired purpose by enabling optical connection by optical connection, but the question of how to close the plug insertion hole when the plug is not inserted, that is, when not in use, has been a problem from the beginning.

If the plug insertion hole is left open when not in use, intrusion of dust or other foreign matter into the inside is inevitable, and contaminants adhere to the optical elements supported therein, resulting in high light transmission efficiency ( There is a fear that the optical signal will be degraded and eventually the optical signal transmission will be impossible. For this reason, the structure which closed by inserting a protective cap in the said plug insertion opening was employ | adopted initially. However, if the opening is closed with a protective cap when not in use, the above concerns are eliminated, but when the plug of the optical connector is inserted, the protective cap must be removed naturally, and after the plug is removed, the protective cap must be reinserted. For this reason, the operation becomes very cumbersome and there is a problem of storage of the protective cap when the plug is inserted, and thereafter, a configuration is adopted in which a shutter that can be opened and closed is arranged in the opening of the plug insertion hole instead.

The shutter is initially opened outwardly. This eliminates the problem of storing the protective cap when the plug is inserted into the plug insertion port, but the troublesome point of opening and closing the shutter by a separate operation when inserting and removing the plug becomes a problem. A shutter that opens inward to solve the problem has been adopted. The shutter is configured to press in the closing direction by a spring provided on a hinge shaft disposed at one side thereof, and the insertion operation is performed when the plug is inserted. It is opened by pressure, and when it is unplugged, it is automatically closed by simply pulling it out. Therefore, the special operation for opening and closing the shutter is no longer necessary, and the problem of separately opening and closing the operation of the shutter opening to the outside has been solved.

In this way, the closing problem when the plug insertion hole is not used is solved to some extent by arranging the shutter that is opened inwardly, but the initial opening of the shutter is arranged to open and close through the hinge axis at the upper part of the opening. It is difficult to close the guide grooves corresponding to the insertion guide protrusions on both sides of the plug formed on the plug. Also, the engaging recesses engaging with the upper ones of the coupling protrusions on the upper and lower sides of the plug must be formed on the front surface of the shutter. Therefore, it turns out that there is a problem such that excessive force is added to the hinge shaft supporting the shutter, especially when the plug is unplugged, and the hinge shaft is arranged on the side of the opening to open sideways. Shutters have been developed.

Accordingly, a projection for closing the guide groove is formed on the corresponding side of the shutter so that the plug insertion hole can be completely closed when the plug is not in use, and an engaging recess for engaging the engaging projection on the upper part of the plug is required to be formed on the front of the shutter. Will be gone.

Thus, the optical connector socket is mainly improved and improved with respect to the closing means when the opening of the plug insertion hole is not used so that the shutter is opened from the protective cap to the shutter, the shutter is opened from the outside to the inside, and the shutter is opened to the inside. Has evolved from arranging the hinge shaft to the upper part to arranging the upper part of the hinge shaft, and the results have been quite satisfactory in terms of the function of closing the opening when the opening is not used.

As a result of this configuration, however, the original function required for the shutter is satisfied as described above, but the mold structure of the housing constituting the optical connector socket according to the configuration of the shutter is New problems have arisen, which have resulted in complexity or an increase in the number of parts, resulting in higher prices. Specific examples of the former include a hinge shaft for supporting the opening and closing of the shutter on the side thereof, and disposing both ends thereof to rotate at a corresponding portion of the opening of the plug insertion opening, The complexity of the mold structure is due to the attachment of a torsion coil spring pressurized in the direction of closing the opening to the spring support shaft, which is installed upright in the housing. A specific example of the latter is the hinge. This is an increase in the number of parts due to the use of the shaft as a spring support shaft and the configuration as a separate component for the purpose of securing the strength thereof.

The present invention solves the problems of the conventional optical connector socket as described above, and when not in use, the opening of the plug insertion hole can be reliably closed without requiring any special operation. An optical connector socket having a shutter capable of opening an opening of a plug insertion hole by simply inserting the same, wherein the optical connector socket can be formed using a mold having a simple structure and has a shutter that can prevent the number of parts from increasing. It is an object of the solution to provide an optical connector socket.

1 is a front view of an embodiment optical connector socket.

Figure 2 (a) is a left side view of an optical connector socket in one embodiment; Fig. 2B is a right side view of the optical connector socket in one embodiment.

Fig. 3 (a) is a cross sectional view taken along the line AA in Fig. 1, Fig. 3 (b) is a cross sectional view taken along the line BB in Fig. 1, and Fig. 3 (c) is a cross sectional view taken along the line CC in Fig. 1. to be.

Fig. 4 (a) is a front view of the shutter, Fig. 4 (b) is a rear view of the shutter, Fig. 4 (c) is a top view of the shutter, Fig. 4 (d) is a right side view of the shutter, and Fig. 4 (e). ) Is a cross-sectional view taken along the line DD in FIG. 4 (d).

5 is a front view of the front housing;

6 is a right side view of the front housing;

Fig. 7 (a) is a cross-sectional view cut by the EE line in Fig. 5, Fig. 7 (b) is a cross-sectional view cut by the FF line in Fig. 5, and Fig. 7 (c) is a cross-sectional view cut by the GG line in Fig. 5. to be.

8 is a front view of the rear housing;

9 is a right side view of the rear housing.

Fig. 10 (a) is a cross-sectional view taken along the line HH in Fig. 8, Fig. 10 (b) is a cross-sectional view taken along the line II in Fig. 8, and Fig. 10 (c) is a cross-sectional view taken on the line JJ in Fig. 8. to be.

Fig. 11 (a) is a plan explanatory view of the cross section of the front housing with the shutter showing the state in which the plug is brought close to the front of the shutter, and Fig. 11 (b) shows the plug being inserted until the shutter rotates 45 degrees. Fig. 11 (c) is a plan explanatory diagram of a cross section of the front housing with the shutter showing the state where the plug is inserted until the insertion is completed.

* Description of the symbols for the main parts of the drawings *

1: Front housing 2: Rear housing

3: socket body 4: shutter

5: Shutter Body 6: Hinge Shaft

7: spring support shaft

8: torsion coil spring

8a: spring body

8b: mating extension part (one end extension part)

8c: slide extension part (other end extension part)

8d: sliding part 9: plug insertion hole

10: opening 11: guide groove of the rear housing

12: protrusion 13: plug

14: protrusion for insertion guide

15: Guide groove of the front surface of the shutter body

16 arm part 17 coupling recess

18: optical element (light emitting element or light receiving element)

19: tip of plug 20: inlet

21: rear support surface 22: front support surface

23: bearing part 23a: inflow part

24: shaft support end 25: coupling portion for coupling

26: coupling protrusion 27: coupling step

28: positioning projection 29: coupling step

30: storage slide surface

Claim 1 of this invention is an element support part which supports one or both of a light receiving element or a light emitting element in a socket main body, and the plug of an optical connector. Plug insertion port for inserting the plug into the optical coupling position with the light receiving element or the light emitting element, and a plug insertion port for opening and closing the plug insertion opening in the opening of the plug insertion hole. I) an optical connector socket comprising a shutter capable of:

The shutter,

A shutter main body having a guide groove corresponding to a projection part for insertion guide located on the front side of the plug;

Hinge shafts formed integrally in a direction intersecting the guide grooves on the side portions corresponding to the inlet side of the guide grooves of the shutter body, both ends of which correspond to the socket bodies. A hinge shaft which is supported to rotate on a part to be made,

A spring support shaft formed on the rear surface of the shutter body in parallel with the hinge axis and integrally with the shutter body;

A torsion coil spring for externally enclosing the spring body on the spring support shaft, the one end side extending part of which is in contact with a portion opposite to the hinge axis on the rear surface of the shutter, Torsion coil spring for slidingly contacting the short-side extension to the inner surface of the socket body on the same side as the hinge shaft.

The extension portion is brought into contact with a portion on the side opposite to the hinge axis of the rear surface of the shutter, and the other end side extension portion slides on the inner surface of the socket body on the same side as the hinge axis. Torsion coil springs

Optical connector socket.

Therefore, according to the optical connector socket of claim 1 of the present invention, the hinge shaft is formed on the side of the shutter body and the spring support shaft is integrally formed on the rear surface of the shutter body. Therefore, the spring support shaft is naturally formed on the socket body side. Since the socket body is not required to be formed by combining two housings as in the conventional example, the respective structures can be made simple, and as a result, the structure of the mold can be simplified. In addition, the number of parts is not increased because the hinge shaft or the spring support shaft does not need to be configured as a separate component.

Claim 2 of this invention WHEREIN: In the optical connector socket of Claim 1 which concerns on this invention, the said recessed part of the back surface of the said shutter main body which contacts the one end side extension part of the said torsion coil spring is comprised by the engagement recessed part.

Therefore, according to the optical connector socket of claim 2 of the present invention, the one end side extension portion of the torsion coil spring is brought into contact with the coupling concave portion, and is fixed so as not to move to the portion. Can be fixed so as not to fall out of the spring support shaft.

Claim 3 of this invention WHEREIN: The sliding part which bends in the direction which rises from the inner surface of the socket main body which is a slide surface in a front-end | tip direction in the optical connector socket of Claim 1 or Claim 2 of this invention ( The other end side extension part of the said torsion coil spring is comprised in a sliding part.

Therefore, according to the optical connector socket of claim 3 of the present invention, the other end extension portion of the torsion coil spring can smoothly move the corresponding inner surface of the socket body in the case of the opening / closing operation of the shutter. Does not interfere with smooth opening and closing operations.

Claim 4 of this invention WHEREIN: The optical connector socket in any one of Claims 1-3 of this invention WHEREIN: The arm part is extended from the corresponding site | part of the said shutter main body, and the said spring from the upper surface. To build a support shaft.

According to the optical connector socket of Claim 4 of this invention, the spring support shaft which supports a torsion coil spring to a shutter main body is comprised by having sufficient intensity | strength, and thus constitutes a socket main body by providing a spring support shaft to a shutter main body. The two housings can be configured to be molded into a simple mold.

(Example)

The present invention will be described in detail with reference to the drawings based on one embodiment.

The figure shows one embodiment of an optical connector socket according to the present invention, in which Fig. 1 is a front view thereof, Fig. 2 (a) is a left side view, Fig. 2 (b) is a right side view, and Fig. 3 (a) is sectional drawing cut by the AA line in FIG. 1, FIG. 3 (b) is sectional drawing cut by the BB line in FIG. 1, FIG. 3 (c) is sectional drawing cut by the CC line in FIG. 4 (a) is a front view of the shutter, FIG. 4 (b) is a rear view of the shutter, FIG. 4 (c) is a top view of the shutter, FIG. 4 (d) is a right side view of the shutter, and FIG. 4 (e) 4 is a cross sectional view taken along the line DD in FIG. 4 (d), FIG. 5 is a front view of the front housing, FIG. 6 is a right side view of the front housing, and FIG. Fig. 7 (b) is a cross sectional view taken along the line FF in Fig. 5, Fig. 7 (c) is a cross sectional view taken along the line GG in Fig. 5, Fig. 8 is a front view of the rear housing, and Fig. 9 is a right side of the rear housing. Fig. 10 (a) is a cross sectional view taken along the line HH in Fig. 8, Fig. 10 (b) is a cross sectional view taken along the line II in Fig. 8, and Fig. 10 (c) is a cut in the JJ line in Fig. 8. 11 is a view showing a process of inserting a plug of an optical connector into a plug insertion hole, and FIG. 11 (a) is a plan view of a cross section of the front housing with a shutter showing the state in which the plug is brought close to the front of the shutter. Explanatory drawing: FIG. 11 (b) is a plan explanatory view of the cross section of the front housing with the shutter showing the state where the plug is inserted until the shutter is rotated 45 degrees. FIG. 11 (c) is the plug in the completed state. It is a plan explanatory drawing of the cross section of the front part housing | casing with a shutter which shows the state which inserted.

The optical connector socket of this embodiment comprises a socket body 3 formed by combining a front housing 1 and a rear housing 2, as shown in Figs. And a shutter 4 coupled to the socket body 3.

As shown in Figs. 4A to 4E, the shutter 4 is basically a board-shaped shutter main body 5 and a hinge shaft which is integrally formed on the left side of the shutter main body 5. It consists of a hinge 6, a spring support shaft 7 erected on the back surface of the shutter main body 5, and a torsion coil spring 8 attached to the spring support shaft 7. .

Since the plank-shaped shutter main body 5 constitutes the hinge axis 6 at its left side in this embodiment, its outer shape is as shown in Figs. 1, 3 and 4 (a). The opening 10 of the plug insertion hole 9 can be completely closed by forming a shape similar to the outline of the opening 10 of the plug insertion hole 9 to be closed and forming a slightly larger dimension. In the center of the right side of the shutter body 5 is formed a projection 12 which can completely close the inlet portion of the guide groove 11 extending from the opening 10 toward the inside of the plug insertion hole 9. The guide groove 11 is coupled to the side portion of the plug 13 to be inserted into the plug insertion hole 9, in this case, the insertion guide protrusion 14 formed on the right side toward the opening 10 to accurately guide the plug 13 to a predetermined position. And a guide groove 15 for engaging the projection 14 for inserting guide 14 on the other side of the plug 13, in this case, on the left side, when the shutter 4 is opened, on the front surface of the shutter main body 5. To form. The guide groove 15 extends from the left to the right at the same height as the protrusion 12 from the positional relationship with the corresponding insertion guide protrusion 14.

The hinge shaft 6 is integrally formed on the left side of the shutter main body 5 as described above, but only the upper and lower end portions are cylindrical as shown in Figs. 4 (a) to 4 (e). Since the intermediate part has no reason to have a cylindrical shape in particular, the intermediate part of the shutter main body 5 is used as it is. The hinge shaft 6 is in a direction crossing the guide groove 15.

The spring support shaft 7 extends the arm 16 from the rear surface of the shutter main body 5 in the rear direction as shown in Figs. 4 (b) to 4 (e). It is set as the structure which stands up in parallel with the said hinge axis | shaft 6 from an upper surface.

The torsion coil spring 8 includes a spring main body 8a formed in a coil shape as shown in Figs. 4A to 4D, and a coupling extension part extending from one end thereof (one end side). ) Extension part) It consists of 8b and the slide extension part (other end extension part) 8c extended from the other end side, and the spring main body 8a is attached to the spring support shaft 7 of the shutter 4 In addition, the engagement extension portion 8b is brought into contact with the bottom surface of the engagement recessed portion 17 formed on the projection 12 side of the rear surface of the shutter main body 5. The slide extension portion 8c is in a state of opening up to a state parallel to the rear surface of the shutter body 5 in the state before the shutter 4 is set to the socket body 3. In Figs. 4 (b) and 4 (d), the slide extension portion 8c is not opened until it is parallel with the back surface of the shutter main body 5, but this is due to the situation on the drawing.

As shown in Figs. 4 (b) to 4 (d), the engaging recess 17 is directly above the arm 16 on the rear surface of the shutter main body 5, and the side of the protruding portion 12 side from the protruding portion 12 side. As described above, the tip of the coupling extension 8b of the torsion coil spring 8 is brought into contact with the bottom of the coupling recess 17 as described above. Thus, when the front end of the engagement extension part 8b contacts the bottom part of the engagement recessed part 17, the said tip is a step | step difference between the bottom part in the side wall part of the said engagement recessed part 17, and the back surface of the shutter main body 5. It is possible to easily secure the torsion coil spring 8 to the spring support shaft 7 because it cannot be easily moved beyond it and out of it.

As described later, when the shutter 4 is set to the socket body 3, the slide extension part 8c has a socket body as shown in Figs. 3 (c) and 11 (a) to 11 (c). The storage slide surface 30, which is an inner surface of the front housing 1 constituting 3, is in contact with the storage slide surface, and the front end portion slides the storage slide surface 30 to move. It forms in the sliding part 8d bent in the upward direction from 30.

As described above, the socket main body 3 is configured by combining the front housing 1 and the rear housing 2 as shown in Figs.

As shown in Figs. 5 to 7, the front housing 1 opens the opening 10 of the plug insertion hole 9 in the center of the foremost part, and the rear optical element (light emitting device) in the center of the innermost part. An inlet port 20 for guiding the tip 19 of the plug 13 is opened in the light receiving element 18 or the light receiving element 18. As shown in Fig. 7 (a), the rear surface of the portion in which the inlet 20 is formed is the front portion of the rear portion of the rear housing 2 which sandwiches the optical element 18 together with the rear support surface 21 formed on the front surface. The support surface 22 is formed. The rear support surface 21 and the front support surface 22 means that the element support.

Moreover, as shown in FIG.7 (b) and FIG.7 (c), in the left inner side of the opening part 10 of the said front part housing 1, the upper end part of the hinge shaft 6 comprised in the left part of the said shutter main body 5 ) Or bearing parts 23 and 23 for supporting the lower end part so as to rotate. In these bearing parts 23 and 23, the inflow parts 23a and 23a which flow in each corresponding end part of the said hinge axis 6 are opened rearward, and each correspondence of the hinge axis 6 through these inflow parts 23a and 23a is carried out. The end portion to be guided is led to the bearing portions 23 and 23. Each end of the hinge shaft 6 introduced into the bearing 23, 23 is formed by the shaft supporting ends 24, 24 of the rear housing 2, which are combined with the front housing 1, as shown in Fig. 3 (c). Departures from the bearings 23, 23 are limited and supported to rotate at the same time.

In addition, the front housing 1 is an inner side of the side forming the bearing 23, 23, the inner side located behind the distance from the bearing 23, 23 to the front of the spring support shaft 7 to which the torsion coil spring 8 is attached. When the shutter main body 5 is rotated until it becomes parallel with the inner side surface, the spring supporting shaft 7 to which the torsion coil spring 8 is attached is retracted to the outside (left) as much as it can be stored there. It is comprised on the slide surface 30. When the inner surface of the front side of the containing slide surface 30 is rotated without retreating until the shutter body 5 is parallel to the inner surface as described above, further contact with the inner surface is stopped.

In addition, as shown in Figs. 6 and 7 (a), the engaging portion 25 for combining with the rear housing 2 is formed at the center of the upper rear portion of the front housing 1. In addition, above and below the inner center of the front housing 1, as shown in Fig. 7 (a), there are engaging steps 27 and 27 for engaging the upper and lower engaging projections 26 and 26 of the plug 13 inserted into the plug insertion hole 9 from the opening 10, respectively. Formed.

The rear housing 2 is provided with an optical element 18 together with the front support surface 22 of the front housing 1 at the center of the inner surface of the rear portion as described above and as shown in FIGS. 8, 10 (a) and 10 (c). A rear support surface 21 constituting the supporting element support portion is formed. In the lower portion of the rear support surface 21, two positioning protrusions 28 and 28 for positioning the lower portion of the optical element 18 protrude as shown in Figs. 8, 10 (a) and 10 (c). And the lower part therebetween is opened for inflow of the optical element 18 and withdrawal of its terminal.

In addition, the rear housing 2 flows into the bearing parts 23 and 23 above and below the front housing 1 as shown in Figs. 8, 10 (b) and 10 (c) above and below the left front part thereof. The shaft supporting ends 24 and 24 which protrude so that the upper and lower ends of the hinge shaft 6 in the shutter 5 are not separated from the bearing parts 23 and 23 are projected.

In the upper center of the rear housing 2, as shown in Fig. 10 (a), in the case of combining with the front housing 1, a coupling step 29 for engaging the engaging portion 25 of the rear center of the upper side of the latter is engaged. Formed.

Therefore, the optical connector socket of this embodiment is installed in the state in which the optical element 18 is in contact with the rear side of the rear support surface 21 of the rear housing 2, and the inlets 23a, 23a in the bearing 23, 23 of the front housing 1 are provided. After the upper and lower ends of the hinge shaft 6 of the shutter 4 are respectively introduced through the latter, the latter is placed in front of the former so that the rear housing 2 and the front housing 1 are in the states of Figs. 3 (a) to 3 (c). Insert by combining the back part. In this simple task, the assembly is completed.

As described above, the upper and lower ends of the hinge shaft 6 flow into the bearing parts 23 and 23, and the slide in the torsion coil spring 8 attached to the spring support shaft 7 of the shutter 4 as shown in Fig. 3 (c). The sliding portion 8d of the extension portion 8c is brought into contact with the inner and inner slide surfaces 30 of the front housing 1 and can be assembled in that state.

In this manner, as shown in FIGS. 3A and 3B, the optical device 18 is held in a state of being sandwiched with the rear support surface 21 of the rear housing 2 and the front support surface 22 of the front housing 1.

In addition, the shutter 4 is in a state in which the upper and lower ends of the hinge shaft 6 are limited so as not to be separated from the bearing portions 23 and 23 of the front housing 1 by the shaft support ends 24 and 24 of the rear housing 2 and are supported to rotate. As described above, the sliding portion 8d of the slide extension portion 8c of the torsion coil spring 8 is in contact with the containment slide surface 30 of the front housing 1, and according to the opening and closing of the shutter body 5 with the rotation of the hinge shaft 6. The sliding portion 8d can slide the containment slide surface 30.

As shown in Fig. 3 (a), the engaging portion 25 of the front housing 1 is coupled to the engaging step portion 29 of the rear housing 2, and is also coupled to each of the engaging portions not shown in the drawings, and thus the front housing 1 and the rear portion. It means that the housing 2 is in a securely coupled state that is not easily separated.

Thus, the optical connector socket of this embodiment which combines the shutter body 4 and the optical element 18 with the socket body 3 which consists of the front housing 1 and the rear housing 2, when inserting the plug 13 into the plug insertion hole 9, only this opening 10 is carried out. The shutter 4 is opened only by the operation of inserting it into the door, and the shutter 4 is closed only by the operation of pulling out to prevent dust and other foreign matter from entering into the plug insertion hole 9.

As shown in Fig. 11A, when the plug 13 is not inserted into the plug insertion hole 9, the shutter body 5 maintains the opening 10 of the plug insertion hole 9 closed by the action of the torsion coil spring 8. As shown in Fig. 11 (b), when the plug 13 is inserted into the opening 10, it is pushed by the tip portion 19 so that the shutter main body 5 rotates around the hinge axis 6 to open up to a state corresponding to the insertion distance of the plug 13. . When the shutter body 5 is pushed and rotated in this manner, the slide extension portion 8c of the torsion coil spring 8 reduces the angle between the coupling extension portion 8b while sliding the sliding portion 8d backward on the storage slide surface 30 of the front housing 1. Let it go.

As shown in Fig. 11 (c), when the plug 13 is further pushed in, the tip portion 19 enters the inlet 20 and proceeds to the optical coupling position with the optical element 18 supported behind it. In this state, the shutter body 5 is rotated to a state parallel to the plug 13, and the insertion guide of the corresponding side of the plug 13 is inserted into the guide groove 15 formed on the front surface of the shutter body 5. The dragon protrusion 14 is engaged.

Engagement of the insertion guide protrusion 14 into the guide groove 15 starts at the time when the plug 13 is further entered from the state of Fig. 11 (b) and inserts the plug 13 into the plug insertion hole 9 as shown in Fig. 11 (c). At this point of time, a state in which all surfaces of the longitudinal direction are in contact with each other is in a perfect bonding state. When the shutter main body 5 becomes parallel with the plug 13 in this manner, the slide extension portion 8c of the torsion coil spring 8 is brought into contact with the entirety of the slide extension portion 8c in parallel with the containment slide surface 30, and the spring main body of the torsion coil spring 8 The spring support shaft 7 having the exterior 8a also is stored at the foremost part of the storage slide surface 30.

In the state where the plug 13 is inserted into the plug insertion hole 9 in this manner, the upper and lower engaging projections 26 and 26 are engaged with the engaging steps 27 and 27 of the front housing 1, as shown in Fig. 3 (a). The insertion is supported in a stable state so that the tip portion 19 of the plug 13 and the optical element 18 ensure good optical coupling.

When the plug 13 is pulled out from the plug insertion hole 9, as shown in the above description, it operates in the opposite direction.

Thus, according to the optical connector socket of this embodiment, when not in use, the opening portion 10 of the plug insertion hole 9 can be securely closed without requiring any special operation by the shutter 4, and only the plug 13 is inserted into the plug insertion hole 9 even when it is used. And the spring support shaft 7 to which the shutter 4 can be opened and the torsion coil spring 8 for returning the shutter 4 to the closed state is placed on the back of the shutter body 5 instead of the socket body 3 side. Therefore, the front housing 1 and the rear housing 2 constituting the socket body 3 can be formed in a simple structure that can be molded with a simple mold.

In this embodiment, the socket body 3 is configured by combining the front housing 1 and the rear housing 2 as in the prior art, but the inside of the housing constituting the socket body 3, in particular the front housing 1, has a spring support shaft 7 in terms of position. Although it can be configured, in the case of configuring it in the front housing 1, a complicated operation is required to take it out of the mold in relation to the shape of other components. This problem can be satisfactorily solved because the spring support shaft 7 is formed on the rear surface of the shutter main body 5 and other related configurations are set as described above.

Therefore, according to the optical connector socket of claim 1 of the present invention, when not in use, the shutter disposed in the opening of the plug insertion hole can be reliably closed without requiring any special operation, and when used, only the plug is inserted into the plug insertion hole. It is possible to open the shutter disposed in the opening of the plug insertion hole alone, and not only to form each component constituting the socket by using a mold having a simple structure, but also to increase the number of parts.

According to the optical connector socket of claim 2 of the present invention, it is possible to fix the torsion coil spring so as not to come off from the spring support shaft by contacting the one end extension of the torsion coil spring in the coupling recess.

According to the optical connector socket of claim 3 of the present invention, when the shutter opening and closing operation is performed, the other end extension portion of the torsion coil spring can smoothly slide the corresponding inner surface of the socket body, thereby smoothly opening and closing the shutter. It can be secured.

According to the optical connector socket of Claim 4 of this invention, the spring support shaft which supports a torsion coil spring to a shutter main body can be comprised by having sufficient intensity | strength, In this way, a spring support shaft is comprised on the shutter main body side, and a socket main body is provided. By not configuring this on the side, the two housings constituting the socket body can be configured to be molded into a simple mold.

Claims (4)

An element support portion for supporting one or both of the light receiving element or the light emitting element in the socket body, and a plug insertion hole for inserting a plug of the optical connector. a plug insertion port for introducing the plug into the optical coupling position with the light receiving element or the light emitting element and supporting the plug, and a shutter which can be opened and closed disposed in an opening of the plug insertion hole. In the optical connector socket comprising: The shutter, A shutter main body having a guide groove corresponding to a projection part for insertion guide located on the front side of the plug; Hinge shafts formed integrally in a direction intersecting the guide grooves on the side portions corresponding to the inlet side of the guide grooves of the shutter body, both ends of which correspond to the socket bodies. A hinge shaft which is supported to rotate on a part to be made, A spring support shaft formed on the rear surface of the shutter body in parallel with the hinge axis and integrally with the shutter body; A torsion coil spring for externally enclosing the spring body on the spring support shaft, the one end side extending part of which is in contact with a portion opposite to the hinge axis on the rear surface of the shutter, Torsion coil spring for slidingly contacting the short-side extension to the inner surface of the socket body on the same side as the hinge shaft. Optical connector socket, characterized in that configured to. The method of claim 1, And a corresponding recessed portion of the rear surface of the shutter body in contact with the one end extension portion of the torsion coil spring as a coupling recess. The method according to claim 1 or 2, The other end side extension part of the said torsion coil spring is comprised in the sliding part which bends in the direction which rises from the inner surface of the socket main body which is a slide surface in a front end direction, and comprises the optical connector socket. . The method according to any one of claims 1 to 3, An arm connector extends from a corresponding portion of the shutter body, and the spring support shaft is erected from an upper surface thereof.