JP2004318005A - Optical connector with shutter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an optical connector comprising an adapter and a plug having superior safety and dustproof property by providing a shutter mechanism which automatically opens and closes by making mutual engagements with an optical connector plug and an optical connector adapter side, and disallowing the mechanism to open and close in other cases. <P>SOLUTION: The optical connector comprises an optical connector plug 100 equipped with a plug-side shutter 120 which opens and closes the optical axis of an optical fiber and an optical connector adapter 200 equipped with an adapter-side shutter 200 opening and closing the optical axis of the optical fiber. When the optical connector plug 100 is engaged with the optical connector adapter 200, the plug-side shutter 120 rotates by being pressed abutting against the optical connector adapter 200 and its turning power is transmitted by a rotation transmitting means 126 to the adapter-side shutter 220 to rotate the adapter-side shutter 220, thereby opening the plug-side shutter 120 and adapter-side shutter 220 respectively. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an optical connector, and more particularly, to an optical connector with a shutter having a shutter that automatically opens when both the optical connector adapter and the plug are fitted to each other and does not open independently.
[0002]
[Prior art]
In recent years, the development of communication technology has been remarkable, and competition between companies in the IT industry has intensified. Conventionally, data communication in the same frequency band as home telephones has been performed using a general telephone line. However, when a higher communication speed is required, ADSL and the like using a higher frequency band are used. Has emerged and is widely spread. However, the current and future communication network concepts of IT-related companies include Internet television and IP telephones. In order to carry out these larger data communications, communication networks using conventional telephone lines cannot cope. A communication network using an optical fiber capable of performing data communication larger than communication using a telephone line has been developed and put into practical use, and is expected to rapidly spread in the future.
[0003]
However, on the other hand, the light energy transmitted through the optical fiber is large, and looking directly at the light can adversely affect the retina of the eye and sometimes cause the risk of blindness. In the future, when such optical fibers are widely used in ordinary households, children with low awareness of danger may be able to play with the plug and look directly at the light, and technically consider how to ensure safety. Problem.
[0004]
Therefore, conventionally, a shutter mechanism is provided in a connector attached to the end of an optical fiber for connecting an optical fiber to another optical fiber or for connecting an electronic device such as a personal computer, and the transmitted light is directly transmitted to the outside. A connector having a structure that does not leak is considered and a patent application has been filed.
The invention described in Patent Literature 1 is one of them, and relates to an optical connector with a shutter that automatically opens and closes a shutter by inserting and removing a light receiving plug. Patent Literature 1 discloses a connector in which a radiation-side optical jack and a light-receiving-side plug come into contact with each other in an insertion hole of a housing and optically couple with each other. There is a magnet that is pushed by the optical plug and is slidable in the horizontal direction between the start end and the end, and a vertical guide groove in which the start end communicates with the end of the guide groove and is orthogonal to the guide groove. A magnet with a shutter is provided in the guide groove so as to be slidable in the vertical direction. When the light receiving side optical plug is not inserted, the magnet is on the magnetic body side on the start end side, the magnet with shutter is located at the guide start end side arranged vertically by its own weight, and the insertion hole is blocked by the shutter. ing. When the light-receiving side optical plug is inserted, the magnet is pushed by the light-receiving side optical plug and moves to the terminal side, and the magnet with the shutter follows the vertical guide groove due to the reaction force of the magnetic force following it, and the end of the vertical guide groove Part, and the insertion hole is opened. When the light-receiving side optical plug is pulled out, the magnet is pulled to the guide groove start end side by the magnetic material provided in the plug, the shutter-equipped magnet moves again to the vertical guide groove start end, and the insertion hole is blocked. An optical connector with a shutter that automatically opens and closes a shutter provided in a housing when a user inserts and removes a light receiving side optical plug is disclosed.
The invention described in Patent Document 2 is an adapter for an optical connector including a lock mechanism for easily attaching and detaching a mount for mounting an optical receptacle and a holder having a built-in optical sensor, and a shutter mechanism for blocking light reception of the optical sensor. In Patent Document 2, a mount and a holder are connected by a pair of claws and a pair of spiral projections, and a shutter is held movably between the optical receptacle and the mount. By moving the shutter in a predetermined direction, There is disclosed an adapter for an optical connector capable of blocking or transmitting outgoing light from an optical fiber and offsetting the light without removing a plug.
Further, the invention described in Patent Document 3 relates to a multi-core optical connector that does not expose light to the outside when an optical connector plug is pulled out from a coupling adapter. In Patent Literature 3, a plug shutter is attached to an outer peripheral portion of a distal end portion of an optical connector plug, and the plug shutter is urged by a coil spring so that the plug shutter is closed when not fitted, thereby shielding the optical axis. are doing. When the optical connector plug is inserted into the coupling adapter, a beam projecting above the plug shutter is pressed against the outer periphery of the insertion port of the coupling adapter, whereby the plug shutter is opened to open the optical axis. It has been disclosed.
[0005]
[Patent Document 1]
Japanese Patent Laid-Open Publication No. Hei 5-093821 (Pages 2 to 4, FIGS. 1, 6 and 7)
[Patent Document 2]
Japanese Patent Application Laid-Open No. 8-262278 (pages 2, 3 and 1, 2)
[Patent Document 3]
JP-A-10-300855 (pages 2 to 4, FIGS. 1 and 2)
[0006]
However, in the invention described in Patent Literature 1, since the shutter is provided only on the housing side, when the jack is removed due to replacement of the jack or the like, there is a possibility that the operator may directly look at the light. Yes, it cannot be said that sufficient security is guaranteed. In addition, since the opening / closing mechanism is based on the sliding movement of the magnet using the action of the magnetic force, a space for mounting the magnet and a space for the sliding movement are required, and it is difficult to reduce the size of the structure. There's a problem.
Similarly, in the invention described in Patent Literature 2, since the shutter mechanism is not provided on the optical fiber with the plug, there is a danger that the worker may directly look at the light when the plug is removed from the optical receptacle. However, there is a problem that sufficient security is not guaranteed.
Finally, in the invention described in Patent Document 3, although the mechanism is simple and the structure can be reduced in size, a shutter for shielding light is provided only on the optical connector plug side, and the optical connector plug is inserted into the coupling adapter. In this case, the plug shutter is in an open state, and there is a risk that, for example, when a user looks through the other end of the coupling adapter, the user may directly look at the light. Further, since the plug shutter is provided so as to be openable and closable by a coil spring, a child or the like can lift and open the plug shutter with a finger at ordinary households, and it cannot be said that sufficient safety is guaranteed.
[0007]
[Problems to be solved by the invention]
In view of the above, the present invention has been made in order to solve the above-described problems, and has a shutter for each of an optical connector adapter and a plug, and a shutter that automatically opens and closes by fitting each other. An object of the present invention is to provide an optical connector with a shutter which has a mechanism that does not open and close, and is excellent in safety and dust resistance.
[0008]
[Means for Solving the Problems]
In order to solve the above problem, the invention according to claim 1 rotates by pressing, whereby the position of the opening moves to open and close the optical axis of the optical fiber housed in the optical connector plug. The position of the opening is moved by rotating the optical connector plug having the plug-side shutter and the rotation transmitting means for transmitting the rotational power of the plug-side shutter, and the optical axis of the optical fiber housed in the optical connector adapter is changed. When the optical connector plug is fitted into the optical connector adapter, the plug-side shutter is pressed and rotated by contacting the optical connector adapter, and the rotation power is reduced. The adapter-side shutter is rotated by being transmitted to the adapter-side shutter by the rotation transmitting means, thereby Wherein the grayed-side shutter and the adapter side shutter is adapted to open respectively.
[0009]
According to a second aspect of the present invention, in the optical connector with a shutter according to the first aspect, the optical connector plug guides and rotates the plug-side shutter when the plug-side shutter is pressed. A side shutter rotation guide groove and first shutter closing means for closing the plug side shutter in the optical connector plug alone, and the optical connector adapter guides and rotates the adapter side shutter when the adapter side shutter is pressed. The connector-side shutter rotation guide groove is provided with second shutter closing means for closing the adapter-side shutter in the optical connector adapter alone. When the optical connector plug is fitted into the optical connector adapter, the plug-side shutter rotation guide groove is provided. The plug-side shutter rotates along with When transmitted to the adapter-side shutter by the transmission means, the adapter-side shutter rotates along the adapter-side shutter rotation guide groove, whereby the plug-side shutter and the adapter-side shutter are opened, and the optical connector plug is pulled out of the optical connector adapter. Then, the plug-side shutter is closed by the first shutter closing means, and the adapter-side shutter is closed by the second shutter closing means.
[0010]
According to a third aspect of the present invention, there is provided an optical connector with a shutter according to the second aspect, wherein the plug-side shutter rotation guide groove is provided on an outer peripheral surface of the plug body along a circumferential direction thereof. The plug-side shutter is formed by pressing the plug-side shutter by pressing the plug-side shutter by forming an inclined groove formed at an oblique angle with a predetermined angle and a linear groove formed in a straight line along the insertion / extraction direction. The plug-side shutter is rotated by moving the inclined groove while the plug guide convex portion engaged with the plug-side shutter rotational guide groove is inserted, and the plug-side shutter is retracted when the plug guide convex portion enters the linear groove portion. The ferrule for holding the optical fiber housed in the optical connector plug is configured to protrude.
[0011]
According to a fourth aspect of the present invention, there is provided an optical connector with a shutter according to the second aspect, wherein the adapter-side shutter rotation guide groove is formed along a circumferential direction of an outer peripheral surface of the adapter body. It is formed to have a first groove provided and a second groove formed in a straight line along the insertion / extraction direction, and when the plug-side shutter rotates, the rotation transmission unit interlocks with the adapter-side shutter to interlock with the rotation. When the provided protrusion is engaged with the adapter-side shutter rotation guide groove, the plug-side shutter rotates by moving the first groove, and the adapter-side shutter is moved when the protrusion enters the second groove. It is characterized in that the sleeve provided inside the optical connector adapter is retracted so as to protrude.
[0012]
According to a fifth aspect of the present invention, there is provided an optical connector with a shutter according to any one of the second to fourth aspects, wherein the first shutter closing means comprises an optical connector plug and an optical connector. When the plug-side shutter is opened by fitting the adapter, the plug-side shutter is compressed in the insertion direction. When the optical connector plug is pulled out of the optical connector adapter, the elastic member that closes the plug-side shutter by a compression reaction force due to the compression is formed. It is characterized by comprising.
[0013]
According to a sixth aspect of the present invention, there is provided an optical connector with a shutter according to any one of the second to fourth aspects, wherein the second shutter closing means comprises an optical connector plug and an optical connector. When the adapter is fitted and the adapter-side shutter is opened, the adapter-side shutter is compressed in the circumferential direction and the insertion direction. When the optical connector plug is removed from the optical connector adapter, the compression-reaction force of the compression causes the adapter-side shutter to be closed. It is characterized by being provided with the elastic member which does.
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an optical connector with a shutter according to the present invention will be described in detail with reference to the drawings.
FIG. 1 is a sectional side view showing a fitting state of an optical connector plug and an optical connector adapter according to the present invention.
First, the optical connector with shutter 1 according to the present invention includes an optical connector plug 100 and an optical connector adapter 200 as shown in FIG.
[0014]
As shown in FIG. 2, the optical connector plug 100 is provided at the distal end side of the plug main body 110 and is provided so as to move in the insertion / removal direction with respect to the plug main body 110 and to rotate and open. The plug-side shutter 120 is provided so that when the optical connector plug 100 is removed from the optical connector adapter 200, the opened plug-side shutter 120 is rotated back to the original position and closed. A first shutter closing means 140, a ferrule 300 which is provided in the plug body 110 and penetrates an optical fiber (not shown) introduced from the rear end of the plug body 110, and a spring 310 for pushing up the ferrule 300 Have been.
[0015]
The plug body 110 is a member made of resin or metal and having a substantially circular cross section. As shown in FIG. 7, on the outer peripheral surface of the plug main body 110, a plug side that movably engages with the plug-side shutter 120 and guides and rotates the plug-side shutter 120 with the insertion movement of the plug main body 110. A shutter rotation guide groove 112, a first shutter closing means accommodating portion 114 for accommodating one end side of the first shutter closing means 140, and a spring 310 for pushing up a ferrule 300 housed in the plug main body 110 are accommodated. The ferrule operation spring housing 116 is formed.
[0016]
The plug-side shutter rotation guide groove 112 includes an inclined groove portion 112a formed in the outer peripheral surface of the plug body 110 in the circumferential direction thereof and a straight groove portion 112b, and the optical connector plug 100 and the optical connector adapter 200 are formed. When the plug-side shutter 120 rotates along the inclined groove 112a by approximately 90 degrees and moves to the entrance of the linear groove 112b, the plug-side shutter 120 moves to the depth of the linear groove 112b.
[0017]
The plug-side shutter 120 is a cylindrical member made of resin or metal. On the inner surface of the plug-side shutter 120, a plug guide protrusion 122 movably engaged with the plug-side shutter rotation guide groove 112 provided in the plug body 110 and one end of the first shutter closing means 140 are accommodated. A first shutter closing means accommodating groove 124, a rotation transmitting means 126 for contacting the adapter-side shutter 220 to position the adapter-side shutter 220, and transmitting rotational power of the plug-side shutter 120 to the adapter-side shutter 220; When the plug-side shutter 120 is rotated, a plug-side opening 128 is formed which moves to the same position as the ferrule 300 (on the optical axis of the optical fiber, not shown) and opens.
[0018]
The rotation transmitting means 126 has a key projection 126a for engaging with the adapter-side shutter 220 and transmitting rotational power.
[0019]
As shown in FIG. 8, the first shutter closing means 140 is a metal spring member, and the first end portion 142 accommodated in the first shutter closing means accommodating portion 114 provided in the plug body 110. And a second end 144 housed in the first shutter closing means housing groove 124 provided in the plug-side shutter 120.
[0020]
Here, the opening / closing operation of the plug-side shutter 120 will be briefly described with reference to FIGS. 7 and 8.
The plug-side shutter rotation guide groove 112 formed on the outer peripheral surface of the plug main body 110 and the plug guide convex portion 122 formed on the inner side surface of the plug-side shutter 120 are movably engaged with each other. When the plug guide protrusion 122 is pushed in the insertion direction (A direction shown in FIG. 7), the plug guide protrusion 122 moves along the inclined groove 112a of the plug-side shutter rotation guide groove 112 (B direction shown in FIG. 7), and the plug-side shutter 120 After being rotated by approximately 90 degrees (in the direction C shown in FIG. 7), the plug-side opening 128 formed in the plug-side shutter 120 is moved to substantially the same position as the ferrule 300 provided in the plug main body 110 and opened. I do. Further, when the plug main body 110 is pushed in the direction A shown in FIG. 7, the plug guide convex portion 122 moves along the straight groove portion 112b (the direction D shown in FIG. 7), and is fixed to the plug side shutter 120. Shutter closing means 140 is compressed. Therefore, in this state, the first shutter closing means 140 is in a state in which a compression reaction force due to compression is acting.
Next, when the plug main body 110 is removed, the plug-side shutter 120 is pushed back along the straight groove portion 112b to the position where the plug-side shutter 120 is coupled to the inclined groove portion 112a due to the compressive reaction force of the first shutter closing means 140. Proceeding along 112a, the plug-side shutter 120 is rotated substantially 90 degrees in the direction opposite to C shown in FIG. 7 to return to the original position and close.
With the structure described above, when the optical connector plug 100 is in a single state, a compression reaction force is generated by the first shutter closing means 140 so as to close the plug side shutter 120. Does not open.
[0021]
As shown in FIGS. 3 and 4, the optical connector adapter 200 includes an adapter main body 210 and an adapter-side shutter 220 provided to rotate with respect to the adapter main body 210 and move in the insertion direction to open. A second shutter closing means 240 provided so that when the optical connector plug 100 is removed from the optical connector adapter 200, the adapter-side shutter 220 that has been rotated and opened is returned to its original position and closed. When the optical connector plug 100 and the optical connector adapter 200 are fitted, the adapter side sleeve 260 for holding the ferrule 300 housed in the plug main body 110 and the split sleeve 280 are provided.
[0022]
The adapter main body 210 is a tubular member made of resin or metal and having a substantially circular cross section. As shown in FIG. 3, the outer surface of the adapter main body 210 is movably engaged with the adapter-side shutter 220, and rotates the adapter-side shutter 220 in conjunction with the rotational movement of the plug-side shutter 120. An adapter-side shutter rotation guide groove 212, an insertion hole 214 for inserting the plug-side shutter 120, and a second shutter closing means accommodating groove 218 for accommodating the second shutter closing means 240. Is formed.
[0023]
The adapter-side shutter 220 is a plate-shaped member made of resin or metal and having a substantially circular cross section. The adapter-side shutter 220 has an adapter guide protrusion 222 movably engaged with the adapter-side shutter rotation guide groove 212 formed in the adapter body 210, and a plug-side shutter which is engaged with the rotation transmitting means 126 of the plug-side shutter 120. The power receiving means 226 for positioning the shutter 120 and transmitting the rotational power of the plug-side shutter 120 to the adapter-side shutter 220, and moving to approximately the same position as the sleeve 260 when the adapter-side shutter 220 rotates. An adapter-side opening 228 that opens the optical axis of an optical fiber (not shown) is formed.
[0024]
The power receiving means 226 has a key hole 226a which engages with a key projection 126a formed on the rotation transmission means 126 of the plug side shutter and receives the rotational power of the plug side shutter 120.
[0025]
The adapter-side shutter rotation guide groove 212 includes a first groove 212a and a second groove 212b. The adapter-side shutter 220 is rotated by the rotation power of the plug-side shutter 120 being transmitted, and is rotated by the first groove 212a. Then, it is rotated by approximately 90 degrees (moves in the direction C shown in FIG. 3), and linearly moves to the back along the second groove 212b (moves in the direction H shown in FIG. 3).
[0026]
As shown in FIGS. 1, 4 to 6 and 9, the second shutter closing means 240 is a metal spring member, and one end of the second shutter closing means 240 is provided in the second shutter closing means accommodating groove 218 formed in the adapter body 210. The first fixed end 242 is fixed, and the other end is constituted by a second fixed end 244 fixed to the adapter-side shutter 220.
[0027]
Next, the opening / closing operation of the adapter-side shutter 220 will be briefly described with reference to FIGS.
When the adapter-side shutter 220 provided on the optical connector adapter 200 is rotated in the direction C shown in FIG. 3 and pressed in the direction H shown in FIG. 3, first, the adapter guide convex portion 222 provided on the adapter side shutter 220 is moved. It moves in the direction F shown in FIG. 3 along the first groove 212a provided on the outer peripheral surface of the adapter body. Next, when the adapter-side shutter 220 is rotated by approximately 90 degrees and the opening 228 provided in the adapter-side shutter 220 moves to substantially the same position as the adapter-side sleeve 260 provided in the adapter main body 210, the adapter Further rotation of the side shutter 220 is prevented, and the side shutter 220 can move in the H direction shown in FIG. When the adapter-side shutter 220 is further pressed, the adapter guide convex portion 222 moves in the H direction shown in FIG. 3 along the second groove portion 212b. When the adapter guide protrusion 222 moves to the end of the second groove 212b, the adapter-side sleeve 260 protrudes forward of the adapter-side shutter 220, and the adapter-side shutter 220 is in an open state. At this time, by the rotation and sliding movement of the adapter-side shutter 220, the second shutter closing means 240 is compressed in the circumferential direction and in the direction in which the second shutter closing means 240 is contracted, and comes into a state having a compression reaction force due to compression in each direction.
Next, when the pressing force applied to the adapter-side shutter 220 is removed, a compression reaction force of the second shutter closing means 240 causes the adapter-side shutter 220 to join the second groove 212b and the first groove 212a. 3 is rotated back in the direction opposite to H shown in FIG. 3, and further, the adapter-side shutter 220 is rotated substantially 90 degrees along the first groove portion 212a in the direction opposite to C shown in FIG. The shutter 220 closes.
With the above-described structure, when the optical connector adapter 200 is in a single state, a compression reaction force acts so as to close the adapter-side shutter 220 by the second shutter closing means 240. Does not open.
[0028]
Next, a procedure from insertion to removal of the optical connector plug 100 and the optical connector adapter 200 according to the present invention will be described with reference to FIGS.
FIG. 5 is a diagram illustrating a state before the optical connector plug 100 is inserted into the optical connector adapter 200. First, when the optical connector plug 100 is inserted into the optical connector adapter 200 (direction A shown in FIG. 5), the plug-side shutter 120 is inserted into the insertion hole 214 of the adapter main body 210. Then, the rotation transmitting means 126 provided on the plug-side shutter 120 comes into contact with and engages with the power receiving means 226 provided on the adapter-side shutter 220 to perform positioning. When the plug main body 110 is further pushed in the direction A shown in FIG. 5, the plug guide convex portion 122 provided in the plug side shutter 120 moves along the plug side shutter rotation guide groove 112 provided on the outer peripheral surface of the plug main body 110. The plug-side shutter 120 rotates in the direction C shown in FIG. 7 while moving in the direction B shown in FIG.
Then, the rotational power accompanying the rotation of the plug-side shutter 120 is transmitted to the adapter-side shutter 220 via the rotation transmitting means 126 and the power receiving means 226. The adapter guide protrusion 222 provided on the adapter-side shutter 220 moves while rotating in the direction C shown in FIG. 3 along the adapter-side shutter rotation guide groove 212 formed on the adapter body 210. When the plug main body 110 is further pressed, the plug guide protrusion 122 formed on the plug main body 110 moves to the end of the inclined groove 112a of the plug-side shutter rotation guide groove 112, and the plug-side shutter 120 does not rotate any further. Subsequently, when the plug main body 110 is further pushed in the insertion direction (A direction shown in FIG. 7), the plug guide convex portion 122 moves in the direction D shown in FIG. 7 along the linear groove portion 112b of the plug side shutter rotation guide groove 112. At the same time, the plug-side shutter 120 is opened, and as shown in FIG. 1, the ferrule 300 housed in the plug main body 110 is in a state of protruding forward of the tip of the plug-side shutter 120. At this time, the adapter guide protrusion 222 formed on the adapter-side shutter 220 that rotates in conjunction with the rotation of the plug-side shutter 120 is inserted into the first groove 212 a of the adapter-side shutter rotation guide groove 212 formed on the adapter main body 210. When the plug body 110 is further moved in the direction F shown in FIG. 3 while being rotated approximately 90 degrees along the same direction, and the plug main body 110 is further pushed in the insertion direction (the direction A shown in FIG. It slides along and is pushed in the H direction shown in FIG. At this time, the adapter-side sleeve 260 provided on the adapter body 210 is in a state of protruding forward of the distal end portion of the adapter-side shutter 220, and the ferrule 300 provided inside the plug body 110 is attached to the adapter-side sleeve provided on the adapter body. 260. In this state, the first shutter closing means 140 has a compression reaction force due to compression in the removal direction, and the second shutter closing means 240 similarly has a compression reaction force due to compression in the rotation direction and the removal direction. It is in the state of having.
[0029]
Next, when the optical connector plug 100 is pulled out of the optical connector adapter 200, that is, when the plug main body 110 is pulled out in the J direction shown in FIG. The first shutter closing means 140 extends in the axial direction due to the compression reaction force. At that time, the plug guide projection 122 formed on the plug-side shutter 120 slides along the straight groove 112b of the plug-side shutter rotation guide groove 112 in the direction opposite to D shown in FIG. 7, and then moves along the inclined groove 112a. The plug-side shutter 120 is moved while rotating the plug-side shutter 120 in a direction opposite to B shown in FIG.
The adapter-side shutter 220 operates in conjunction with the plug-side shutter 120, and the second shutter closing means 240, which has been pressed and shrunk in the rotation direction and the withdrawal direction, extends in the axial direction due to the compression reaction force. The formed adapter guide protrusion 222 moves along the second groove 212b of the adapter-side shutter rotation guide groove 212 in the direction opposite to H shown in FIG. 3, and then moves along the first groove 212a in FIG. , And the adapter-side shutter 220 is closed.
As described above, since the plug-side shutter 120 and the adapter-side shutter 220 are opened and closed by inserting and removing the optical connector plug 100 and the optical connector adapter 200, the user of the optical connector plug is not shown. There is no need to worry about looking directly at the light of the optical fiber, and it can be handled safely.
[0030]
【The invention's effect】
As described above, according to the optical connector with a shutter according to the present invention, the shutter is provided in both the optical connector plug and the optical connector adapter, and the respective shutters are opened only when they are fitted. Since the shutter is not opened even if the shutter is forcibly opened, there is an effect that the safety is high and the dust resistance is excellent.
[0031]
Further, since the shutter opening / closing mechanism is a mechanism using a fitting structure of the optical connector plug and the optical connector adapter, there is an effect that the optical connector can be downsized.
[0032]
[Brief description of the drawings]
FIG. 1 is a partial cross-sectional side view showing a fitting state of an optical connector plug and an optical connector adapter according to the present invention.
2A is a cross-sectional plan view of an optical connector plug according to the present invention, FIG. 2B is a cross-sectional side view thereof, and FIG. 2C is a cross-sectional front view thereof.
FIG. 3A is a front view of an optical connector adapter according to the present invention, and FIG. 3B is a side view thereof.
4A is a sectional side view of an optical connector adapter according to the present invention, and FIG. 4B is a sectional front view thereof.
FIG. 5 is a partially sectional plan view showing a state before insertion of the optical connector plug and the optical connector adapter according to the present invention.
FIG. 6 is a partial cross-sectional plan view showing an initial insertion state of the optical connector plug and the optical connector adapter according to the present invention.
FIG. 7 is a schematic perspective view showing an optical connector plug according to the present invention.
FIG. 8 is a schematic perspective view showing a first shutter closing means according to the present invention.
FIG. 9 is a schematic perspective view showing a second shutter closing means according to the present invention.
[Explanation of symbols]
1 Optical connector with shutter
100 Optical connector plug
110 plug body
112 Plug side shutter rotation guide groove
112a Inclined groove
112b Straight groove
114 First shutter closing means housing section
116 Spring accommodation part for ferrule operation
120 Plug side shutter
122 Plug guide protrusion
124 first shutter closing means accommodation groove
126 rotation transmission means
126a key projection
128 Plug side opening
140 First shutter closing means
142 first end
144 second end
200 Optical Connector Adapter
210 Adapter body
212 Adapter side shutter rotation guide groove
212a first groove
212b Second groove
214 insertion hole
218 Second shutter closing means housing section
220 Adapter side shutter
222 Adapter guide protrusion
226 Power receiving means
226a key hole
228 Plug side opening
240 Second shutter closing means
242 First fixed end
244 Second fixed end
260 Adapter side sleeve
280 split sleeve
300 ferrule
310 spring

Claims (6)

An optical connector plug having a plug-side shutter that rotates by being pressed, thereby moving the position of the opening to open and close the optical axis of the optical fiber housed in the optical connector plug;
An optical connector having an adapter-side shutter that opens and closes the optical axis of an optical fiber housed in the optical connector adapter by moving the position of the opening by being rotated by rotation transmission means for transmitting the rotational power of the plug-side shutter. Configured with an adapter,
When the optical connector plug is fitted to the optical connector adapter, the plug-side shutter is pressed and rotated by abutting on the optical connector adapter, and its rotational power is transmitted to the adapter-side shutter by the rotation transmitting means. An optical connector with a shutter, characterized in that the shutter on the adapter side is rotated by this, and thereby the shutter on the plug side and the shutter on the adapter side are respectively opened. The optical connector with a shutter according to claim 1,
The optical connector plug includes a plug-side shutter rotation guide groove that guides and rotates the plug-side shutter when the plug-side shutter is pressed, and a first shutter that closes the plug-side shutter in the optical connector plug alone. With closing means,
The optical connector adapter includes an adapter-side shutter rotation guide groove that guides and rotates the adapter-side shutter when the adapter-side shutter is pressed, and a second shutter that closes the adapter-side shutter in the optical connector adapter alone. With closing means,
When the optical connector plug is fitted into the optical connector adapter, the plug-side shutter rotates along the plug-side shutter rotation guide groove, and the rotation of the plug-side shutter is controlled by the rotation transmitting means to the adapter-side shutter. When transmitted to the adapter-side shutter rotates along the adapter-side shutter rotation guide groove, the plug-side shutter and the adapter-side shutter are opened,
When the optical connector plug is removed from the optical connector adapter, the plug-side shutter is closed by the first shutter closing means, and the adapter-side shutter is closed by the second shutter closing means. An optical connector with a shutter. The optical connector with a shutter according to claim 2,
The plug-side shutter rotation guide groove is formed on the outer peripheral surface of the plug main body at an angle along a circumferential direction thereof at a predetermined angle, and is formed obliquely at a predetermined angle. Formed with a straight groove part,
When the plug-side shutter is pressed, the plug-side shutter is rotated by moving the inclined groove in a state where the plug-guide protrusion provided on the plug-side shutter is engaged with the plug-side shutter rotation guide groove. When the plug guide convex portion enters the straight groove portion, the plug-side shutter is retracted, and a ferrule holding an optical fiber housed in the optical connector plug is configured to protrude. Optical connector with shutter. The optical connector with a shutter according to claim 2,
The adapter-side shutter rotation guide groove includes a first groove formed in a circumferential direction of an outer peripheral surface of the adapter main body, and a second groove formed in a straight line in the insertion / extraction direction. Formed
When the plug-side shutter rotates, the first transmission portion moves in the state in which the protrusion provided on the adapter-side shutter is engaged with the adapter-side shutter rotation guide groove in conjunction with the rotation transmission means. The plug-side shutter is rotated, and when the protrusion enters the second groove, the adapter-side shutter is retracted, and a sleeve provided in the optical connector adapter is configured to protrude. Characteristic optical connector with shutter. The optical connector with a shutter according to any one of claims 2 to 4,
When the optical connector plug and the optical connector adapter are fitted and the plug side shutter is opened, the first shutter closing means is compressed in the insertion direction, and the optical connector plug is pulled out of the optical connector adapter. An optical connector with a shutter, comprising: an elastic member that closes the plug-side shutter by a compression reaction force due to compression when the connector is detached. The optical connector with a shutter according to any one of claims 2 to 4,
When the optical connector plug and the optical connector adapter are fitted and the adapter-side shutter is opened, the second shutter closing means is compressed in a circumferential direction and an insertion direction, and the optical connector plug is closed by the optical connector plug. An optical connector with a shutter, comprising: an elastic member that closes the adapter-side shutter by a compression reaction force due to compression when the connector is removed from the connector adapter.

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