JP4310329B2 - Optical connector - Google Patents

Description

  The present invention is an optical connector used for abutting and connecting end faces in the axial direction of an optical fiber, and is of a type (SC type) in which a plug with an optical fiber attached is pushed into an insertion port of an adapter. About things.

  As shown in FIG. 6, the SC type optical connector has a plug B, in which a ferrule E into which an optical fiber A is inserted, is pushed in from the insertion port D of the adapter C to the inside thereof. When the attached plug B was removed from the adapter C, the plug B was picked with a fingertip, pulled outward, and pulled out from the insertion port D of the adapter C. A claw (not shown) is formed inside the adapter C, and the plug B mounted in the adapter C is locked to the adapter C so that it is difficult to remove. As shown in FIG. 6, the SC type optical connector is often used by arranging a large number of adapters C on the left and right (horizontal) side by side or on the top and bottom (vertical) without gaps.

  As shown in FIG. 7, when the adapters C are arranged side by side without a gap, there is no space for inserting a finger around the adjacent plug B, so that the plug B is difficult to pick with the fingertip and the plug B is difficult to pull out. If the plug B is forcibly pulled out, the neighboring optical connectors may be pulled out at the same time as the plug is pulled out, and an unexpected connection failure may occur. These problems are the same when the adapters C are arranged vertically without gaps.

  The object of the present invention is that even if a large number of connectors are arranged side by side in the horizontal direction or in the vertical direction, a desired plug can be easily and easily removed, and neighboring connectors can be disconnected at the same time. It is to provide an optical connector that does not.

SC-type optical connector of the present invention, a plug optical fiber attached, is composed of an adapter having a receptacle for mounting the plug in I pushed, the plug can be pushed into the insertion port of said adapter The end of the ferrule protrudes from the front of the plug body molded into a shape, and the tip of the optical fiber is inserted and fixed to the ferrule, and a guide protrusion for guiding pushing into the adapter is formed on the side of the plug body. The adapter slot is formed on the front and back of the adapter, both sides of the slot are opened on the same axis, and the ferrule tip protruding from the tip of the plug can be inserted into the slot. Komiana is provided, in the SC optical connectors which the adapter is used are arranged are stacked in side by side or vertically next to a number, the adapter plug before Symbol outlet And extruding the plug pushing mechanism from the insertion port of the plugs, an operation device for operating the plug pushing mechanism, wherein the plug pushing mechanism is provided in the accommodating portion below said insertion opening an internal of the adapter, The operation tool protrudes in a direction intersecting with an arrangement direction of a plurality of adapters arranged side by side in a lateral direction or stacked in a vertical direction, and can be pushed from the outside of the adapter to the adapter. provided that, the operation member can drive the plug pushing mechanism to push the plug plugged into the receptacle to be pushed from the outside of the adapter, it can be automatically restored by the release of the pressing operation It is characterized by.

The optical connector of the present application has the following effects.
(1) By pushing the operating tool that protrudes from the outside of the adapter, the plug that is inserted into the insertion port of the adapter can be pushed out from the insertion port by the plug pushing mechanism inside the adapter. Therefore, even when a large number of adapters are arranged horizontally or vertically without a gap, the plugs inserted into these adapters can be easily removed.
(2) Since the operating tool is provided on either the left or right side or the upper or lower side of the insertion port of the adapter, there is no need to forcibly pull out the plug when removing the plug. For this reason, even when a large number of adapters are arranged horizontally or vertically, it is easy to remove the plug, only the plug to be removed can be surely removed, and there is no possibility that the neighboring connectors are unplugged at the same time.

(Embodiment 1)
An example of an embodiment of the optical connector of the present invention will be described with reference to FIGS. The optical connector shown in FIG. 1 is an optical connector (SC type optical connector) in which a plug (male connector) 2 to which an optical fiber 1 is attached can be attached to and detached from an insertion port 4 of an adapter (female connector) 3.

  The plug 2 has an end portion of a ferrule 6 protruding from the front of a plug body 5 formed in a shape that can be pushed into the insertion port 4 of the adapter 3. The tip of the optical fiber 1 is inserted and fixed in the ferrule 6 of FIG. A guide projection 7 is formed on the side surface of the plug body 5 to guide the pushing into the adapter 3.

  As shown in FIGS. 1, 2 (a-c), and 3 (a, b), the adapter 3 has an insertion port 4 on the same axis on the front surface and the back surface. A plug push-out mechanism 12 (FIGS. 3, a and b) is accommodated in the lower accommodating portion 11, and an operation tool 13 for operating the plug push-out mechanism 12 is provided so as to protrude outside the accommodating portion 11. As shown in FIG. 1, stoppers 14 having stopper holes 23 for fixing the adapter 3 to an electronic device or other member are formed on the upper and lower surfaces of the adapter 3. A slit 15 for guiding the guide protrusion 7 of the plug 2 is formed on the side surface of the insertion port 4 of the adapter 3.

  Like the existing adapter, the insertion port 4 is a square hole into which the square plug 2 can be pushed, and the insertion port 4 protrudes from the tip of the plug 2 as shown in FIG. An insertion hole 16 into which the tip of the ferrule 6 can be inserted is provided, and a removal prevention piece 17 is provided on the insertion hole 16 to lock the inserted plug 2 and make it difficult to remove.

  The accommodating portion 11 is a space formed below the insertion port 4 on the front surface, and has a size capable of accommodating the plug pushing mechanism 12 as shown in FIG.

  As shown in FIGS. 3A and 3B, the plug push-out mechanism 12 pushes the operation tool 13 projecting outside the adapter 3 so that the tip end face 18 of the plug 2 inserted into the insertion port 4 is seen from the inside. It can be pushed out and formed into a crank shape with a drive arm 20 that rotates about a shaft 19 and a push arm 22 that rotates about a shaft 21. The drive arm 20 and the push-out arm 22 have their tip portions 20b, 22b bent in a substantially L shape in opposite directions.

  As shown in FIGS. 1 and 3A and 3B, the plug push-out mechanism 12 pushes the protruding portion of the operation tool 13 protruding from the lower surface of the adapter 3 into the inside of the adapter 3 so that the rear end portion 20a of the drive arm 20 is reached. Is pushed and the front end side of the drive arm 20 rotates in the lower right direction in FIG. 3A around the shaft 19 as a rotation axis. When the rear end portion 22a of the push arm 22 is pushed in the same direction on the front end side, the push arm is pushed. 22 rotates in the same direction with the shaft 21 as a rotation axis, the distal end portion 22b of the pushing arm 22 rotates in the opposite direction, and pushes the distal end face 18 of the plug 2 so that the plug 2 is placed outside the insertion port 4 of the adapter 3. It can be extruded.

  The operation tool 13 can be pushed from the outside of the adapter 3 when a large number of adapters 3 are arranged side by side (horizontal direction) as shown in FIG. 4 or stacked vertically and vertically (vertical direction). It is preferable to project at a position (on the lower surface side of the adapter 3), and the adapter 3 can be projected on either the left or right or upper and lower surfaces. The operation tool 13 has a structure that protrudes outward when the push-in is released and can be automatically restored.

(Other Embodiment of Plug Extrusion Mechanism)
The plug pushing mechanism in the optical connector of the present invention may have other structures and mechanisms. As an example, the one shown in FIG. 5 is provided with a flexible spring-like drive tool 31 in a tube-shaped guide 30 disposed in the adapter 3, an operation tool 13 on one end side, and a push tool 32 on the tip side. When connected, when the operating tool 13 is pushed, the driving tool 31 is pushed and the pushing tool 32 is pushed, and the pushing tool 32 pushes the tip end face 18 of the plug 2 to the outside of the insertion port 4 of the adapter 3. It is. A thing other than a spring-like thing can also be used for the drive tool 31, for example, a flexible and strong wire rod like a piano wire can be used with a single wire, or it can be used in bundles.

  The plug push-out mechanism fills a tube-shaped sealed guide 30 with a liquid, and when the operation tool 13 is pressed, the liquid starts in the guide 30 and is provided on the tip side in the guide 30. The tip end surface of the plug 2 may be pushed out to the outside of the insertion port 4 of the adapter 3 at 32.

  The plug push-out mechanism of the present invention is based on the structure and mechanism other than the above-described embodiment as long as it is possible to push the plug inserted into the adapter insertion port from the inside to the outside by operating the operation tool from the outside of the adapter. can do. The operation tool is not a push-in type, but may be one that can reciprocate inside the adapter or another structure or mechanism.

  The optical connector of the present invention is not limited to the type shown in FIGS. 1 to 5 (SC type optical connector). Other types may be used as long as the plug is pushed into the adapter and attached and pulled out and removed. It can also be applied to other optical connectors.

The perspective view which shows an example of embodiment of the optical connector of this invention. (A)-(c) is explanatory drawing which shows the adapter of the optical connector of this invention. (A) is a front view. (B) is a left side view. (C) is a bottom view. (A) (b) is explanatory drawing which shows the internal structure of the adapter of the optical connector of this invention. (A) is a front view which shows a mode that the plug was mounted | worn. (B) The left view which shows a mode that the plug is not mounted | worn. BRIEF DESCRIPTION OF THE DRAWINGS FIG. Explanatory drawing which shows other embodiment of the plug extrusion mechanism of the optical connector of this invention. The perspective explanatory view showing the conventional optical connector. An explanatory perspective view showing a state in which a number of conventional optical connectors are arranged side by side without gaps.

DESCRIPTION OF SYMBOLS 1 Optical fiber 2 Plug 3 Adapter 4 Insertion port 5 Plug main body 6 Ferrule 7 Guide protrusion 11 Accommodating part 12 Plug extrusion mechanism 13 Operation tool 14 Stopping piece 15 Slit 16 Insertion hole 17 Detachment prevention piece 18 Plug front end surface 19 Axis 20 Drive Arm 21 Axis 22 Pushing arm 23 Stop hole 30 Guide 31 Driving tool 32 Pushing tool

Claims (1)

It is composed of a plug to which an optical fiber is attached and an adapter having an insertion port into which the plug is pushed in, and the plug is formed in a shape that can be pushed into the insertion port of the adapter. The end of the ferrule protrudes from the end, and the tip of the optical fiber is inserted and fixed to the ferrule, and a guide protrusion is formed on the side surface of the plug main body to guide the pushing into the adapter. formed on a rear surface and both sides of the insertion port is opened on the same axis, pluggable insertion hole is provided to the tip of the ferrule which projects at the tip of the plug in the receptacle mouth, said adapter in the SC optical connectors are arranged being aligned or stacked vertically in multiple laterally used,
Said adapter is provided with extruded plug extruding mechanism, the operating tool for operating the plug pushing mechanism the plug plugged before Symbol outlet from the insertion port,
The plug push-out mechanism is provided inside the adapter and in the accommodating portion below the insertion port,
The operation tool protrudes in a direction intersecting with an arrangement direction of a plurality of adapters arranged side by side in a lateral direction or stacked in a vertical direction, and can be pushed from the outside of the adapter to the adapter. Provided ,
When the operation tool is pushed from the outside of the adapter, the plug pushing mechanism can be driven so as to push out the plug inserted into the insertion port, and can be automatically returned by releasing the pushing operation.
SC type optical connector characterized by the above.

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