JP5019610B2 - Optical connector - Google Patents

Description

  The present invention relates to an optical connector for optical fibers, and more particularly to an optical connector for connecting optical fibers by mechanical connection.

  With diversification and increase in capacity of communication, communication using an optical fiber typified by FTTH (Fiber To The Home) is rapidly spreading. With the widespread use of optical fiber communications, workers can easily connect optical fibers using optical connectors when performing construction to connect optical fiber cores on-site using optical connectors. It is desirable to be able to do it reliably and reliably. Therefore, in the field where optical fiber cores are connected to each other, a mechanical connection type optical connector for connecting optical fiber cores to each other has been used by assembling the optical connector without polishing with no power source. Yes.

In order to connect the optical fibers, the end surface of the optical fiber core to be inserted and connected and the end surface of the internal optical fiber core built in the ferrule are in contact with each other optically. They are connected (see, for example, Patent Document 1).
JP-A-10-206688

14 (A) to 14 (C) and FIGS. 15 (A) to 15 (B) show how the optical fiber cores to be inserted and connected are positioned and fixed. .
As shown in FIG. 14A, the core wire 201 of the optical fiber 200 is inserted into the connection component 203 of the optical connector 202. The inside of the connection component 203 is expanded by inserting a wedge, and the end surface 211 of the core wire 201 of the optical fiber 200 is embedded in the ferrule 205 in the connection component 203 as shown in FIG. When it is abutted against the end face 210 of the optical fiber 209, the optical fiber 200 itself is bent and a deflection 212 is generated.

  The worker confirms the deflection 212 of the optical fiber 200, and the worker removes the wedge from the connection component 203 to release the state of the inner extension of the connection component 203 by the wedge, as shown in FIG. As described above, the operator holds the gripping component 206 of the optical fiber 200 by hand in the optical connector 202 and pushes it toward the stopper 208 in the R direction to make it back. Thereafter, as shown in FIG. 15A, the operator closes the optical connector 202 using the lid 207.

  Thus, as shown in FIG. 15A, when the gripping member 206 is positioned back with respect to the stopper 208 in the optical connector 202 along the R direction, the lid 207 is completely The connection work of the optical fiber 202 ends.

  However, as shown in FIG. 15B, the gripping member 206 is not completely positioned in the optical connector 202 along the R direction and cannot be positioned with respect to the stopper 208. As shown, the lid 207 does not close completely. For this reason, the optical fiber connection work cannot be performed smoothly and reliably.

  Therefore, in order to solve the above problems, the present invention moves and positions the gripping member in accordance with the operation of closing the lid, even if the operator does not manually move the gripping member of the optical fiber toward the stopper. It is an object of the present invention to provide an optical connector that can be fixed and the lid can be closed securely and the optical fiber connection work can be performed smoothly and reliably.

In order to solve the above problems, the optical connector of the present invention is
Frame,
A connection component disposed within the frame and having a first optical fiber;
A gripping member for gripping a second optical fiber for connection to an end face of the first optical fiber, which extends in the longitudinal direction of the second optical fiber, and the first optical fiber and the second optical fiber A gripping member comprising an inclined surface that is inclined in a direction away from the central axis of the second optical fiber as it is away from the connection end face of the optical fiber;
A gripping member storage portion that is connected to the frame and has a release portion, and has a storage chamber for storing the gripping member so that the inclined surface is disposed in the release portion ;
A lid that is rotatable about a rotation fulcrum provided closer to the first optical fiber than the release part, and the lid is arranged on the release part when rotated about the rotation fulcrum. has a protrusion that is pressed against the surface, and pressing the inclined surface by the projection when closing the release portion of the storage chamber by rotating about said rotational fulcrum, said gripping A lid that fixes the gripping member at a fixed position of the storage chamber in a state in which the member is slid in the direction away from the first optical fiber along the axial direction;
The first distance from the rotation fulcrum of the lid to the tip of the protrusion is set to be equal to or less than a second distance from the rotation fulcrum to the end of the inclined surface of the gripping member on the first optical fiber side ,
The gripping member storage portion has a stopper for fixing the gripping member at the fixed position;
The amount of movement of the gripping member corresponding to the distance between the end of the gripping member and the stopper is:
It is below the length along the said axial direction of the said inclined surface, It is characterized by the above-mentioned.

The optical connector of the present invention is preferably characterized in that the height from the rotation fulcrum to the tip of the projection is not less than the length of the inclined surface along the direction perpendicular to the axial direction.
The optical connector of the present invention is preferably characterized in that an inclination angle of the inclined surface of the gripping member with respect to the axial direction is not less than 15 degrees and not more than 45 degrees.

In the optical connector of the present invention, preferably, the gripping member has a first surface portion facing the inner surface side of the lid, and a second surface portion contacting the bottom surface portion of the storage chamber,
The inclined surfaces are formed on the first surface portion and the second surface portion, respectively.

  In the optical connector of the present invention, preferably, the rotation fulcrum is formed in a portion fixed to the frame, and the fixed portion is formed integrally with the gripping member storage portion. Features.

  According to the present invention, even if the operator does not manually move the gripping member of the optical fiber toward the stopper, the gripping member is moved and positioned and fixed as the lid is closed, so that the lid is securely fixed. It can be closed and the optical fiber connection work can be performed smoothly and reliably.

  FIG. 1 is a perspective view showing a preferred embodiment of the optical connector of the present invention and showing a state in which a lid is open. FIG. 2 is a perspective view showing a state in which the lid of the optical connector shown in FIG. 1 is closed.

  The optical connector 10 shown in FIGS. 1 and 2 is made of, for example, plastic, and has a gripping member storage portion 11, a plug frame (an example of a frame) 12, a slider 13, a lid 14, and an auxiliary unit 15. is doing.

  FIG. 3 is a perspective view showing a state in which the auxiliary unit 15 is removed from the optical connector 10 in order to clearly show the shape of the gripping member storage portion 11 shown in FIGS. 1 and 2, and further showing the shape of the gripping member. is there. 4 is a cross-sectional view showing the internal structure of the optical connector 10 taken along the line AA in FIG.

  The holding member storage portion 11 shown in FIG. 3 and FIG. 4A has a substantially rectangular parallelepiped storage chamber 16 for storing and holding the holding member 20 of the optical fiber cable. The storage chamber 16 has a capacity for storing the gripping member 20 of the optical fiber cable. The gripping member storage portion 11 includes a base portion 11B, a first side surface portion 11F, a second side surface portion 11G, a bottom surface portion 17, and a stopper 18, and the bottom surface portion 17, the first side surface portion 11F, and the second side surface. The portion 11G and the base portion 11B form a storage chamber 16. The upper portion of the storage chamber 16 is open, and the open portion of the upper portion of the storage chamber 16 can be closed by the lid 14. The stopper 18 fixes the gripping member at the fixed position of the storage chamber 16 by abutting the end of 20.

  As shown in FIG. 4, a connection member 21 is disposed in the plug frame 12 along the axial direction CL.

  As shown in FIG. 4A, one end portion 12 </ b> B of the plug frame 12 is fixed to the base portion 11 </ b> B of the gripping member storage portion 11. The base portion 11 </ b> B has a tapered passage 11 </ b> C and a columnar passage 11 </ b> D connected to the connection component 21, and the passage 11 </ b> C and the passage 11 </ b> D connect the connection component 21 and the storage chamber 16. The other end 12C of the plug frame 12 can be connected to a socket type connector (not shown).

  The connecting portion 14B of the lid 14 is attached to the base 11B of the gripping member storage portion 11 so as to be rotatable in the R direction around the rotation fulcrum 19, and the lid 14 rotates in the R direction at an angle exceeding 90 degrees. By moving, the lid 14 can close the open part of the upper part of the storage chamber 16 of the gripping member storage part 11. The rotation fulcrum 19 is formed in a base portion 11B that is a portion fixed to the plug frame 12, and the base portion 11B is formed integrally with the gripping member storage portion 11 and is a part of the gripping component storage portion 11. .

  As shown in FIGS. 1 and 3, the lid 14 includes a first engagement portion 28, a second engagement portion 29, a first attachment portion 31, a second attachment portion 32, and one protrusion 33. Yes. The first engagement portion 28 and the second engagement portion 29 are formed in parallel with each other, and the first engagement portion 28 is formed at a position between the connection portion 14B and the first attachment portion 31, and the second engagement portion 28 is formed. The joint portion 29 is formed at a position between the connecting portion 14 </ b> B and the second attachment portion 32.

  The optical fiber cable 40 shown in FIGS. 3, 4A, and 4B is a drop optical cable, an indoor optical cable, or the like. FIG. 4A shows a built-in optical fiber 58 as a first optical fiber and an optical fiber core wire 43 as a second optical fiber.

  The optical fiber core 43 has a bare optical fiber 44 and a coating layer 45. The bare optical fiber 44 is covered with a covering layer 45, and the optical fiber core wire 43 is covered with a sheath 41. After the sheath 41 at the end of the optical fiber cable 40 is peeled off, the gripping member 20 is fixed to the end of the sheath 41 with the optical fiber core wire 43 exposed.

  As shown in FIGS. 3, 4 (A), and 4 (B), the gripping member 20 mechanically grips the sheath 41 of the optical fiber cable 40 on the optical fiber core wire 43. It is a member to be grasped and is a substantially rectangular parallelepiped block body having an inclined surface 42. The inclined surface 42 can also be referred to as a tapered surface, and is formed so as to be inclined in a direction downward toward the bare optical fiber 44 and the coating layer 45 side.

  As shown in FIG. 4B, the gripping member 20 has a U-shaped groove 43 extending from one end to the other end, and a plurality of end portions of the sheath 41 are formed on the inner surface of the groove 43. The projection 44 is fixed.

Next, the connection component 21 will be described with reference to FIGS. 4 and 5.
The connection component 21 is fixed in the plug frame 12 along the axial direction CL. Examples of the structure of the connection component 21 are shown in FIGS. 4, 5 (A), and 5 (B). FIG. 5B shows a cross-sectional structure of the connection component 21 along the line KK in FIG. As shown in FIGS. 5A and 5B, the connection component 21 includes a V-groove substrate (connection substrate) 50, a fiber pressing cover 51, a covering pressing cover 52, clamp springs 53 and 54, A capillary (also referred to as a ferrule) 55 and a spring 56 are provided.

  As shown in FIG. 5B, one end of the capillary 55 is fixed to the flange portion 57 of the V-groove substrate 50. The clamp spring 53 clamps the V-groove substrate (also referred to as connection substrate) 50 and the fiber pressing lid 51, and the clamp spring 54 clamps the V-groove substrate 50 and the covering pressing lid 52.

  As shown in FIG. 5B, the capillary 55 holds a built-in optical fiber 58, which is an example of a first optical fiber, and one end 58B of the built-in optical fiber 58 has a V-groove substrate 50 and a fiber presser. Between the lids 51, the V-groove substrate 50 is held in the V-groove 59V. The other end 58 </ b> C of the built-in optical fiber 58 is positioned so as to be flush with the end of the capillary 55. As shown in FIG. 4A, the spring 56 is disposed in the passage 11D of the base portion 14B, and the spring 56 holds the connection component 21 by elastic force along the T direction.

  6 (A) to 6 (C) are cross-sectional views taken along line BB of the connection component 21 shown in FIG. 5 (B).

  As shown in FIGS. 6A to 6B, the wedge 59R is pushed into the groove portion 59D provided between the V-groove substrate 50 and the covering presser lid 52, whereby the V-groove substrate 50 A small gap 59 </ b> S can be provided between the cover pressing cover 52 and the cover pressing cover 52. By using this gap 59S, a bare optical fiber 44 (see FIG. 4 for the bare optical fiber 44) can be inserted into the V groove 59T.

  Then, as shown in FIG. 6C, the bare optical fiber 44 can be fixed between the V-groove substrate 50 and the covering presser lid 52 by removing the wedge 59 </ b> R from the groove portion 59 </ b> D. In this case, the end face 58B of the built-in optical fiber shown in FIG. 4A and the end face 44S of the bare optical fiber 44 are abutted and are in an optically connected state.

Next, the structure of the lid 14 and the gripping member 20 will be further described with reference to FIGS.
FIG. 7 shows a state immediately before the lid 14 closes the storage chamber 16 of the gripping member storage portion 11, and FIGS. 8, 9, and 11 illustrate the structure of the lid 14 and the gripping member storage portion 11. The state which removed the lid | cover 14 from the holding member accommodating part 11 side is shown.

  The lid 14 shown in FIG. 7 has the protrusion 33 as already described. For example, as shown in FIG. 3, the protrusion 33 is formed continuously along the width direction of the lid 14, that is, along the direction perpendicular to the paper surface in FIG. The width of the protrusion 33 may be the same as, or larger than, the width of the inclined surface 42 of the gripping member 20 in the paper surface direction of FIG. 7, and the width of the protrusion 33 is not particularly limited.

  As shown in FIG. 7, the protrusion 33 is formed so as to protrude, for example, in the vertical direction with respect to the longitudinal direction S of the lid 14. The holding member 20 has a first surface portion 20B, a second surface portion 20C, a front end portion 20F, and a rear end portion 20R. The first surface portion 20 </ b> B is a planar portion facing the inner surface side of the lid 14, and the second surface portion 20 </ b> C is a planar portion placed on the inner surface of the bottom surface portion 17 of the storage chamber 16. The first surface portion 20B and the second surface portion 20C are parallel to each other, and an inclined surface 42 is formed on the first surface portion 20B side. The inclined surface 42 is formed in a direction downward from the first surface portion 20B toward the end portion 20F. The front end 20F and the rear end 20R are parallel.

  Referring to FIG. 8, FIG. 8 shows the first distance L1, the second distance L2, the movement amount X1, and the horizontal length of the inclined surface 42 (corresponding to the length of the inclined surface 42 along the axial direction CL) X2. Is shown.

  The first distance L1 indicates the distance from the rotation fulcrum 19 of the lid 14 to the tip of the protrusion 33, and the second distance L2 is from the rotation fulcrum to the end (upper end) 42T of the inclined surface 42 of the gripping member 20. Shows the distance.

  The movement amount X1 shown in FIG. 8 corresponds to the distance between the end 20R of the gripping member 20 and the stopper 18. The horizontal length X2 of the inclined surface 42 is the length of the inclined surface 42 with respect to the axial direction CL.

The magnitude relationship (condition 1) between the first distance L1 and the second distance L2 shown in FIG. 8 is as follows.
1st distance L1 ≦ 2nd distance L2
As shown in FIG. 7, when the gripping member 20 is positioned in front of the inside of the storage chamber 16, that is, in contact with the base 11B side, when the lid 14 is rotated in the R direction, the projection 33 of the lid 14 is formed. It must come into contact with the inclined surface 42 of the gripping member 20.

  If the first distance L1 is larger than the second distance L2, the protrusion 33 does not contact the inclined surface 42 of the gripping member 20 but hits the first surface portion 20B, and the protrusion 33 pushes the gripping member 20 along the T2 direction. It cannot be moved, and the end portion 20R of the gripping member 20 cannot be positioned and fixed with respect to the stopper 18.

Furthermore, the magnitude relationship (condition 2) between the movement amount X1 and the horizontal length X2 of the inclined surface 42 shown in FIG. 8 is as follows.
Movement amount X1 ≦ horizontal length X2 of the inclined surface 42... Equation 2

  If the movement amount X1 is larger than the horizontal length X2 of the inclined surface 42, the gripping member 20 is not sufficiently moved along the T2 direction, and there is a gap between the end 20R of the gripping member 20 and the stopper 18. Therefore, when the lid 14 is closed, the gripping member 20 cannot be fixed in the storage chamber 16 and rattles, and the gripping member 20 cannot be fixed at an accurate position in the storage chamber 16.

FIG. 9 shows the magnitude relationship (Condition 3) between the height Y1 of the protrusion 33 and the vertical length of the inclined surface 42 (length along the vertical direction with respect to the central axis CL) Y2.
The height Y1 of the projection 33 is the height from the rotation fulcrum to the tip of the projection, and the magnitude relationship (condition 3) between the height Y1 of the projection 33 and the vertical length Y2 of the inclined surface 42 is as follows. Preferably, it is as follows.
Height Y1 of projection 33 ≧ vertical length Y2 of inclined surface 42 Equation 3

  FIG. 10A is an undesirable example, and the height Y1 of the protrusion 33 is smaller than the vertical length Y2 of the inclined surface 42 (the height Y1 of the protrusion 33 <the vertical length of the inclined surface 42). FIG. 10B is a preferred example, and the height Y1 of the projection 33 is equal to or larger than the length Y2 of the inclined surface 42 in the vertical direction (projection Y2). 33 shows a state in the case of height Y1 ≧ length Y2 of the inclined surface 42 in the vertical direction).

  In the unfavorable example shown in FIG. 10A, the protrusion 33 fixes the gripping member 20 to the stopper 18 so as to abut the middle portion of the inclined surface 42. For this reason, when an external force is applied to the sheath 41 in the T2 direction, the gripping member 20 is pushed in the T1 direction, so that the lid 14 is pushed through the inclined surface 42 and the projection 33 to open in the R1 direction. May end up.

  On the other hand, in the preferred example shown in FIG. 10B, the protrusion 33 is not in the middle of the inclined surface 42, and the protrusion 33 is directly abutted against the end 20F of the holding member 20, so that an external force is applied in the T1 direction. Even if it adds, the lid | cover 14 does not open.

FIG. 11 shows an inclination angle (taper angle) A of the inclined surface 42.
The range of the value of the inclination angle A (condition 4) is preferably as follows.
15 degrees ≤ tilt angle A ≤ 45 degrees ...

  If the inclination angle A is less than 15 degrees in the unfavorable example shown in FIG. 12A, the gripping member 20 does not move in the T2 direction even when the lid 14 is pressed, and the lid 14 does not close. Further, in the unfavorable example shown in FIG. 12B, when the inclination angle A exceeds 45 degrees, the protrusion 33 of the lid 14 must be enlarged. The gripping member 0 starts to move in the T2 direction from the state where it is wide open. Therefore, it is difficult to perform the operation of closing the lid 14, and there is a concern that the gripping member 20 may jump out of the storage chamber 16.

Next, a structural example of the auxiliary unit 15 shown in FIGS. 1 and 2 will be described.
As shown in FIGS. 1 and 2, the auxiliary unit 15 is a member for reliably inserting the gripping member 20 into the storage chamber 16 of the gripping member storage portion 11 by linearly sliding the gripping member 20 along the T2 direction. . For this reason, the auxiliary unit 15 is detachably fixed by a portion that engages with the gripping member storage portion 11.

The auxiliary unit 15 includes a guide part 60 of the gripping member 20, a first latch part 61, and a second latch part 62. The guide part 60 has a guide groove 60G formed along the T2 direction. The inner end portion 60H of the guide groove 60G is continuous with the storage chamber 16 of the gripping member storage portion 11. Thus, the operator can reliably store the grip member 20 in the storage chamber 16 by moving the grip member 20 along the guide groove 60G.
The optical fiber cable 40 shown in FIG. 3 has a rectangular cross section, for example, 3 mm × 2 mm.

Next, an assembly example of the optical connector 10 described above will be described.
As shown in FIG. 1, the operator guides the holding member 20 in the T1 direction along the guide groove 60G of the auxiliary unit 15 and guides it into the storage chamber 16, and the bare optical fiber 44 enters the passage 11C of the base portion 14B. Lead.

  As shown in FIG. 6, the wedge 59 </ b> R is pushed into the groove portion 59 </ b> D of the V-groove substrate 50 and the covering pressing lid 52, thereby providing a small gap 59 </ b> S between the V-groove substrate 50 and the covering pressing lid 52. Therefore, the bare optical fiber 44 can be inserted into the V groove 59T using the gap 59S.

  Then, as shown in FIG. 6C, the bare optical fiber 44 can be fixed between the V-groove substrate 50 and the covering presser lid 52 by removing the wedge 59 </ b> R from the groove portion 59 </ b> D. In this case, the end surface 58B of the built-in optical fiber shown in FIG. 4A and the end surface 44S of the bare optical fiber 44 are abutted and optically and mechanically connected.

  As shown in FIG. 7, in a state before the lid 14 closes the storage chamber 16, the end portion (corresponding to the front end portion) 20F of the gripping member 20 is abutted against the base portion 11B, and in this state, The optical fiber core wire 43 or the coating layer 45 is bent.

  Thereafter, as shown in FIG. 7, when the operator rotates the lid 14 in the R direction, the protrusion 33 is abutted against the inclined surface 42 of the gripping member 20, so that the protrusion 33 causes the gripping member 20 to move on the bottom surface portion 17. Push and move in the T2 direction.

  As a result, the gripping member 20 moves in the T2 direction along the bottom surface portion 17, and the end portion (corresponding to the rear end portion) 20R of the gripping member 20 hits the stopper 18, as shown in FIG. It is applied and positioned and fixed. In this positioned state, the bare optical fiber 44 and the covering layer 45 can be held so that there is almost no slack along the axial direction CL.

  In the optical connector 10, as shown in FIG. 8, the first distance L 1 ≦ the second distance L 2 (Condition 1), so that the operator can hold the gripping member 20 in front of the storage chamber 16. Only by rotating the lid 14, the projection 33 of the lid 14 can abut against the inclined surface 42 of the gripping member 20. For this reason, the holding member 20 can move along the T2 direction toward the stopper 18 and can be positioned at the fixed position.

  Moreover, in the optical connector 10, as shown in FIG. 8, the first distance L1 ≦ the second distance L2 (condition 1) and the movement amount X1 ≦ the horizontal length X2 of the inclined surface 42 (condition 2). When the lid 20 is closed, the gripping member 20 can be prevented from rattling in the storage chamber 16 in a state where the gripping member 20 is positioned and fixed.

  As a result, even if the operator does not move the gripping member 20 directly toward the stopper 18 manually, the gripping member 20 is moved with respect to the stopper 18 in accordance with the operation of closing the lid 14, and is positioned and fixed. I get out. The lid 14 can be reliably closed, and the optical fiber connection work can be performed smoothly and reliably.

  In the embodiment of the present invention, in the optical connector 10, as shown in FIG. 9, it is preferable that the height Y1 of the protrusion 33 ≧ the length Y2 in the vertical direction of the inclined surface 42 (condition 3). As shown in FIG. 10B, the protrusion 33 does not press down the inclined surface 42 of the gripping member 20, but can press down the end portion 20F of the gripping member 20. Therefore, the projection 33 is T1 with respect to the sheath 41 shown in FIG. Even when an external force is applied in the direction, the gripping member 20 can be held between the protrusion 33 and the stopper 18. Therefore, the lid 14 does not open even when an external force in the T1 direction is applied.

  Furthermore, in the embodiment of the present invention, in the optical connector 10, as shown in FIG. 11, the gripping member 20 is reliably moved in the accommodation chamber 16 if preferably 15 degrees ≦ tilt angle A ≦ 45 degrees. The gripping member 20 does not jump out of the storage chamber 16, and the operation of closing the lid 14 is reliable and easy.

FIG. 13 shows another embodiment of the present invention.
As shown in FIG. 13, the holding member 20 has a first surface portion 20B that faces the inner surface side of the lid 14 and a second surface portion 20C that contacts the bottom surface portion 17 of the storage chamber 16, and the first surface portion 20B. One inclined surface 42 is formed, and the other inclined surface 42D is formed on the second surface portion 20C. These inclined surfaces 42 and 42D are formed at the same inclination angle A, for example. By adopting such a structure of the gripping member 20, the gripping member 20 may be disposed in the opposite direction in the storage chamber 16, so that the gripping member 20 can be stored without worrying about the vertical relationship of the gripping member 20. It can be fitted into the chamber 16. The inclined surfaces 42 and 42D in FIG. 13 satisfy, for example, the conditions 1 to 4 described above.

  The other elements of the embodiment shown in FIG. 13 are the same as those of the embodiment shown in FIGS.

As described above, in the present invention, Condition 1 and Condition 2 described above are essential, but Condition 3 and Condition 4 can be arbitrarily selected and adopted.
In the embodiment of the present invention, the rotation fulcrum 19 is formed in a base portion 11 </ b> B that is a portion fixed to the plug frame 12, and the base portion 11 </ b> B is formed integrally with the gripping member storage portion 11. Thereby, it is not necessary to prepare another component for forming the rotation fulcrum 19, and the number of components can be reduced.

By the way, this invention is not limited to the said embodiment, A various modified example is employable.
For example, the cross section of the tip of the protrusion 33 is substantially flat. However, the present invention is not limited to this, and the cross section of the tip of the protrusion 33 may be semicircular or triangular.
The gripping member 20 has a substantially rectangular parallelepiped shape, but the cross section may be circular or elliptical. In this case, the cross-sectional shape of the storage chamber 16 is matched with the shape of the gripping member 20.

It is a perspective view which shows preferable embodiment of the optical connector of this invention, and shows the state which the lid | cover is open. FIG. 2 is a perspective view showing a state where a cover of the optical connector shown in FIG. 1 is closed. FIG. 3 is a perspective view showing a state in which the auxiliary unit is detached from the optical connector in order to clearly show the shape of the gripping member storage portion shown in FIGS. 1 and 2 and showing the shape of the gripping member. It is sectional drawing which shows the internal structure of the optical connector in the AA in FIG. It is a figure which shows the structure of a connection component. It is a figure which shows a mode that a bare optical fiber is fixed with a connection component. It is a figure which shows the state just before a lid | cover closes the storage chamber of a holding member storage part. It is a figure which shows the state from which the lid | cover was removed from the holding member storage part side. It is a figure which shows the state from which the lid | cover was removed from the holding member storage part side. It is a figure which shows the example of magnitude correlation of height Y1 of a protrusion, and length Y2 of an inclined surface. It is a figure which shows the state from which the lid | cover was removed from the holding member storage part side. It is a figure which shows the state which tries to close a lid | cover when an inclination angle is outside the range of a setting numerical value. It is a figure which shows another embodiment of this invention. It is a figure which shows operation | movement of a prior art example. It is a figure which shows operation | movement of a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Optical connector 11 Holding member accommodating part 12 Plug frame (an example of a frame)
14 Lid 16 Storage chamber 19 Rotating fulcrum 20 Holding member 33 Projection 42 Inclined surface CL Axial direction 43 Optical fiber (corresponding to second optical fiber)
58 Built-in optical fiber (equivalent to the first optical fiber)

Claims (5)

Frame,
A gripping member for gripping a connection component having a first optical fiber disposed in the frame and a second optical fiber for connection to an end face of the first optical fiber;
An inclination that extends in the longitudinal direction of the second optical fiber and is inclined in a direction away from the central axis of the second optical fiber as the distance from the connection end surface of the first optical fiber and the second optical fiber increases. A gripping member comprising a surface;
A gripping member storage portion that is connected to the frame and has a release portion, and has a storage chamber for storing the gripping member so that the inclined surface is disposed in the release portion ;
A lid that is rotatable about a rotation fulcrum provided closer to the first optical fiber than the release part, and the lid is arranged on the release part when rotated about the rotation fulcrum. has a protrusion that is pressed against the surface, and pressing the inclined surface by the projection when closing the release portion of the storage chamber by rotating about said rotational fulcrum, said gripping A lid that fixes the gripping member at a fixed position of the storage chamber in a state in which the member is slid in the direction away from the first optical fiber along the axial direction;
The first distance from the rotation fulcrum of the lid to the tip of the protrusion is set to be equal to or less than a second distance from the rotation fulcrum to the end of the inclined surface of the gripping member on the first optical fiber side ,
The gripping member storage portion has a stopper for fixing the gripping member at the fixed position;
The amount of movement of the gripping member corresponding to the distance between the end of the gripping member and the stopper is:
An optical connector having a length equal to or shorter than the length of the inclined surface along the axial direction.   2. The optical connector according to claim 1, wherein a height from the rotation fulcrum to a tip of the protrusion is not less than a length along a direction perpendicular to the axial direction of the inclined surface.   3. The optical connector according to claim 1, wherein an inclination angle of the inclined surface of the gripping member with respect to the axial direction is not less than 15 degrees and not more than 45 degrees. The gripping member has a first surface portion facing the inner surface side of the lid, and a second surface portion in contact with the bottom surface portion of the storage chamber,
Wherein the first surface and the second surface portion, the optical connector according to any one of claims 1 to 3 wherein the inclined surface respectively, characterized in that it is formed.   The said rotation fulcrum is formed in the part fixed with respect to the said flame | frame, and the said fixed part is formed integrally with the said holding member accommodating part. Optical connector.

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