JP2019086574A - Gripping member - Google Patents

Abstract

To provide a gripping member capable of gripping different types of optical cables.SOLUTION: A gripping member comprises a main body 40 provided with a pair of first sidewalls 43 having first gripping protrusions 431 and configured to grip a jacket of a first cable 3A accommodated between the pair of first sidewalls using the first gripping protrusions, and an attachment 50 which can be fitted between the pair of first sidewalls, has a pair of second sidewalls 53 having second gripping protrusions, and is configured to grip a jacket of a second cable 3B having a diameter smaller than that of the first cable using the second gripping protrusions.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a gripping member.

  For example, a field assembly type optical connector is known as a device for connecting optical fibers by abutting the end faces of the optical fibers. The field assembly type optical connector is an optical connector having a structure that can be easily assembled at the end of the optical cable at the optical fiber installation site. In the ferrule of the optical connector before assembly, a built-in fiber is attached in advance at the factory, and the end of the built-in fiber is disposed at the mechanical splice portion. At the assembly work site, while holding the sheath of the optical cable by the holding member, the end of the insertion fiber which is extracted from the optical cable is inserted into the mechanical splice portion, and the optical fibers are butt connected in the mechanical splice portion .

  Patent Document 1 describes the structure of a gripping member used in a field assembly type optical connector. In the gripping member described in Patent Document 1, gripping protrusions are formed on the mutually facing surfaces of the pair of side wall portions, and the gripping protrusions are bitten into the sheath of the optical cable to make the optical cable between the pair of side wall portions. Holding fixed.

  Further, Patent Document 2 describes a gripping member in which a step is provided on an inner wall of a portion to be gripped (a portion where a gripping projection is formed) so that optical cables of different types (outside) can be installed.

International Publication No. 2013/129485 JP, 2014-167586, A

  When it is desired to hold and fix different types of optical cables, in the holding member of Patent Document 1, the amount of biting in when the cover of the optical cable bites into the holding projections differs. As a result, if the amount of biting in is large, the operation of inserting the optical cable into the outer covering gripping member may be difficult, and if the amount of biting in is small, there is a possibility that the gripping and fixing of the optical cable may be insufficient. Further, as in Patent Document 2, when the step is provided, there is a possibility that the length of the portion to be gripped becomes long and the gripping force to each optical cable may be reduced.

  An object of the present invention is to provide a gripping member capable of reliably gripping different types of optical cables.

  The main invention for achieving the above object has a pair of first side wall portions having a first gripping projection, and the first cable sheath housed between the pair of first side wall portions is It has a pair of second side wall portions that can be mounted between the main body portion held by the holding projection and the pair of first side wall portions and has the second holding projection, and has an outer shape than the first cable And an attachment configured to hold a small second cable sheath with the second holding projection.

  Other features of the present invention will become apparent from the description of the specification and the drawings described below.

  According to the present invention, different types of optical cables can be reliably gripped.

FIG. 1A is a perspective view of the optical connector 100 of the present embodiment, and FIG. 1B is an exploded perspective view of the optical connector 100 of the present embodiment. 2A to 2C are perspective views of the gripping member 30 according to the first embodiment. FIG. 2A is a perspective view of a state in which the second cable 3B is gripped. FIG. 2B is a perspective view of the state in which the attachment 50 is removed. FIG. 2C is a perspective view of a state in which the first cable 3A is gripped. FIG. 3A is a top view of the main body 40 of the gripping member 30. FIG. FIG. 3B is a view of FIG. 3A viewed from the rear side. FIG. 3C is a cross-sectional view taken along line AA of FIG. 3A. FIG. 4A is a top view of the attachment 50. FIG. 4B is a view of the attachment 50 as viewed from the rear side. FIG. 4C is a cross-sectional view taken along line B-B of FIG. 4A. FIG. 5A is a top view of the gripping member 30 when the attachment 50 is attached. FIG. 5B is a rear view of the main body cover 44 and the attachment cover 54 in a closed state. FIG. 5C is a view showing a state when the main body lid 44 is in contact with the attachment lid 54 when the main body lid 44 is closed. 6A to 6C are perspective views of the gripping member 30 according to the second embodiment. FIG. 6A is a perspective view of a state in which the second cable 3B is gripped. FIG. 6B is a perspective view with the attachment 50 ′ removed. FIG. 6C is a perspective view of a state in which the first cable 3A is gripped.

  At least the following matters will be clear from the description of the specification and drawings to be described later.

  A main body portion having a pair of first side wall portions having a first holding projection, the outer sheath of the first cable accommodated between the pair of first side wall portions being held by the first holding projection; A jacket of a second cable which is attachable between the pair of first side walls and which has a pair of second side walls having a second gripping projection, the outer diameter of the second cable being smaller than the first cable; A gripping member is characterized in that the gripping member is characterized by including an attachment gripped by the gripping projection. According to such a gripping member, when the attachment is not attached, the first cable can be grasped by the main body, and when the attachment is attached, the attachment can grasp the second cable. Therefore, optical cables of different types (outer shapes) can be gripped reliably.

  The main body portion has a first lid, the attachment has a second lid, and the first lid contacts the second lid when the first lid is closed in a state where the attachment is attached. Preferably, the second lid is closed. Thereby, the second lid can be automatically closed by closing the first lid.

  The first lid has a projecting contact portion formed on the inner surface, and the second lid has an inclined surface formed on the outer surface, and the first lid is closed when the attachment is mounted, It is desirable that the contact portion of the first lid is in contact with the inclined surface of the second lid. Thereby, the second lid can be easily closed.

  It is preferable that the attachment has at least two second lids, and when the attachment is attached to the main body, the first holding projection be disposed between the second lids. Thus, the first gripping projection between the second lid can be formed long.

  The first side wall portion has a plurality of the first gripping projections arranged in the longitudinal direction of the first cable, and the second side wall portion has a plurality of the plurality of the second gripping portions arranged in the longitudinal direction of the second cable. It is preferable that a second holding projection be disposed between the first holding projections when the attachment is mounted on the main body. Thereby, the thickness of the second side wall portion can be secured.

  The main body portion has a first alignment portion, the attachment has a second alignment portion, and when the attachment is mounted on the main body portion, the first alignment portion and the second alignment portion Preferably, the positioning of the main body portion and the attachment is performed by a part. Thereby, positional deviation of the attachment can be prevented.

  The first alignment portion is a groove portion provided in the first side wall portion, and the second alignment portion is a convex stripe portion provided in the second side wall portion, and the attachment is the main body portion It is desirable that the ridges enter into the groove when mounted on the. Thereby, position shift with an attachment can be prevented easily.

  The first alignment portion is a hole formed in an erected first bottom wall portion of the pair of first side wall portions, and the second alignment portion is a portion of the second side wall portion of the pair It is a convex part formed in the erected 2nd bottom wall part, and when the attachment is attached to the main part, it is desirable that the convex part fits into the hole. Thereby, position shift with an attachment can be prevented easily. In addition, when the hole penetrates the first bottom wall portion, it is easy to take out the first cable and the attachment (and the second cable).

=== First Embodiment ===
<Basic configuration>
FIG. 1A is a perspective view of the optical connector 100 of the present embodiment, and FIG. 1B is an exploded perspective view of the optical connector 100 of the present embodiment.

  In the following description, each direction is defined as shown in FIG. 1A. That is, the optical axis direction (longitudinal direction) of the optical cable 3 or the optical fiber 4 is referred to as "front-back direction", the side from which the optical cable 3 extends from the optical connector body 10 is referred to as "rear", and the opposite side is referred to as "front". Further, the insertion and removal direction of the insertion member 19 is the vertical direction, the side from which the insertion member 19 is pulled out from the optical connector main body 10 (see FIG. 1B) is “down”, and the opposite side is “up”. In addition, a direction perpendicular to the front-rear direction and the vertical direction is referred to as “left-right direction”, the right side when viewed from the rear side as “right”, and the left side as “left”.

  The optical connector 100 of the present embodiment is a field assembly type optical connector for connecting optical fibers by a mechanical splice method, and is an optical connector assembled at the end of an optical cable. Further, the optical connector 100 of the present embodiment is an LC type optical connector which is smaller than the SC type optical connector and capable of high density mounting.

  The optical connector 100 includes an optical connector main body 10, a gripping member 30, and an optical cable 3.

  The optical connector main body 10 has a ferrule (not shown), a mechanical splice portion (not shown), a housing 12 and an insertion member 19.

  The ferrule and the mechanical splice portion are housed in the housing 12. The ferrule is a cylindrical ferrule used here for a single-core optical connector. The front end of the built-in fiber (not shown) is inserted into and fixed to the ferrule, and the end face is polished together with the ferrule. The rear end face of the built-in fiber is disposed in the centering groove of the mechanical splice portion. Then, in the mechanical splice portion, the built-in fiber and the optical fiber 4 of the optical cable 3 gripped by the gripping member 30 are butted and connected. Further, the housing 12 has a fixing portion 13.

  The fixing portion 13 is a portion for fixing the gripping member 30 and is a portion provided on the rear side of the housing 12. A space surrounded by the inner surface of the fixing portion 13 is a housing space for housing the gripping member 30. The housing space is opened at the rear end surface of the fixed portion 13, and the holding member 30 is inserted from this opening. The inner surface of the fixing portion 13 is a sliding surface on which the gripping member 30 is slid in the front-rear direction.

  The fixing portion 13 has locking portions 13A on the left and right side surfaces. The locking portion 13A is a portion for locking a claw portion 45 (described later) formed on the side wall portion 43 of the gripping member 30 (main body portion 40).

  The insertion member 19 is a member that opens and closes a gap of a mechanical splice portion (not shown) of the optical connector main body 10. An insertion hole (not shown) is formed on the lower surface of the optical connector main body 10, and a wedge 19A extending from the upper side of the insertion member 19 is inserted into the insertion hole. By removing the interposing member 19 from the optical connector main body 10 (pulling out the wedge 19A) with the optical fibers (internal fiber and optical fiber 4) butted, the gap of the mechanical splice part is closed and the optical fiber is fixed. Be done.

  The gripping member 30 is a member for gripping the optical cable 3. The gripping member 30 is inserted into the fixing portion 13 of the optical connector main body 10 in a state in which the optical cable 3 is gripped. The configuration of the gripping member 30 of the present embodiment will be described later.

  Here, the optical cable 3 assumes a drop cable and an indoor cable. The optical cable 3 such as a drop cable or an indoor cable is an angular cross-sectional optical cable in which the optical fiber 4 and a pair of linear tensile members are collectively covered with a jacket. In this case, since the jacket is relatively hard, it is relatively easy to grip the optical cable 3 by causing the gripping projections (described later) of the gripping members 30 to bite into the jacket.

  However, there is a demand to make the gripping member 30 grip the optical cable 3 of different type (outer shape). For example, an optical cable 3 having a cross-sectional shape of 3.1 mm × 2.0 mm (hereinafter referred to as a first cable 3A) and an optical cable 3 having a cross-sectional shape of 2.0 × 1.6 mm (hereinafter referred to as a second cable 3B) There are cases where it is desired to make the gripping member 30 grip the If the second cable 3B is gripped by the gripping member 30 conforming to the shape of the first cable 3A, the amount of biting in of the gripping projections may be reduced, and the gripping and fixing of the second cable 3B may be insufficient. On the other hand, when trying to hold the first cable 3A in the holding member 30 conforming to the shape of the second cable 3B, the amount of biting in of the holding projections becomes large, making it difficult to put the first cable 3A into the holding member 30 May be

  Although a gripping member 30 conforming to the shape of the first cable 3A and a gripping member 30 conforming to the shape of the second cable 3B may be prepared respectively, it is necessary to produce the gripping member 30 conforming to each cable. It is. Further, for example, when a step corresponding to the outer shape of each cable is provided on the inner wall of the portion for gripping the optical cable, there is a risk that the length of the portion to be gripped may be long or the gripping force may be reduced.

  So, in this embodiment, attachment 50 is constituted so that attachment or detachment is possible to grasping member 30 (body part 40), and it is made to be able to grasp first cable 3A and second cable 3B certainly.

<Configuration of Grasping Member 30>
2A to 2C are perspective views of the gripping member 30 according to the first embodiment. FIG. 2A is a perspective view of a state in which the second cable 3B is gripped. FIG. 2B is a perspective view of the state in which the attachment 50 is removed. FIG. 2C is a perspective view of a state in which the first cable 3A is gripped.

  FIG. 3A is a top view of the main body 40 of the gripping member 30. FIG. FIG. 3B is a view of FIG. 3A viewed from the rear side. FIG. 3C is a cross-sectional view taken along line AA of FIG. 3A. 3A and 3B show the state accommodated in the fixing portion 13 (the fixing portion 13 is a cross section), and in FIG. 3A, the main body cover 44 of the main body portion 40 is transmitted (two-dot chain line). Indicated). Moreover, FIG. 3C has shown the cross section of the state (The state which is not accommodated in the fixing | fixed part 13) with which the lid | cover 44 for main bodies was opened.

  4A is a view of the attachment 50 as viewed from above. FIG. 4B is a view of the attachment 50 as viewed from the rear side. FIG. 4C is a cross-sectional view taken along line B-B of FIG. 4A. In addition, in FIG. 4A, the attachment lid 54 is made to permeate | transmit (it has shown with the dashed-two dotted line).

  The gripping member 30 of the present embodiment includes a main body 40 and an attachment 50.

  The main body 40 is provided to conform to the shape of the first cable 3A, and can hold the first cable 3A.

  The main body portion 40 has a grip portion 40A and an insertion portion 40B.

  The gripping portion 40A is a portion for gripping the sheath of the first cable 3A. The grip 40A has a bottom wall 42 (corresponding to a first bottom wall), a side wall 43 (corresponding to a first side wall), and a main body cover 44 (corresponding to a first cover).

  The bottom wall portion 42 is a portion that constitutes the lower portion (bottom portion) of the grip portion 40A, and has a bottom projection 421 (corresponding to a first bottom projection) and a hole 422 (corresponding to a first alignment portion) .

  The bottom projection 421 protrudes upward from the bottom wall 42 and bites into the sheath of the first cable 3A. The bottom protrusions 421 in the present embodiment are conical protrusions, and two bottom protrusions 421 are provided side by side in the front-rear direction at the center position of the bottom wall portion 42 in the left-right direction.

  The hole 422 is provided through the bottom wall portion 42 in a rectangular shape between the two bottom protrusions 421. When the attachment 50 is attached to the main body 40, the convex portion 522 of the lower surface of the bottom wall 52 of the attachment 50 is inserted into the hole 422. Thereby, position shift of attachment 50 can be prevented. The hole 422 may not penetrate through the bottom wall portion 42. In that case, the protrusion 522 of the attachment 50 may be provided so as to fit in the hole. However, as in the present embodiment, when the hole 422 penetrates the bottom wall portion 42, for example, a rod-like member is inserted from the outside into the hole 422 and the first cable 3A or the attachment 50 (and the second cable 3B) ) Can be easily taken out. Further, the shape of the hole 422 is not limited to a rectangle, and may be another shape (for example, a polygon or a circle). Also in this case, the convex portion 522 of the attachment 50 may be provided in a shape corresponding to (engaged with) the hole.

  The side wall portions 43 are provided opposite to each other at the left and right ends of the bottom wall portion 42. Each of the pair of side wall portions 43 has a main body protrusion 431 (corresponding to a first holding projection), a groove portion 432 (corresponding to a first alignment portion), a hinge portion 433 and a lid fixing portion 434 There is.

  The main body protrusion 431 protrudes inward from the opposing surface (inner surface) of the pair of side wall portions 43, and is a protrusion along the up and down direction. The main body protrusion 431 is formed in a substantially triangular cross section so that the protruding side (inner side) is sharp when viewed from above. The ridge line of the main body protrusion 431 is parallel to the vertical direction. When the first cable 3A is accommodated between the pair of side walls 43, the main body projections 431 of the pair of side walls 43 bite into the sheath of the first cable 3A. Three main body projections 431 (a central projection 431A and two end projections 431B) are disposed in the pair of side wall portions 43 of the present embodiment. The three main body projections 431 of one side wall 43 are arranged to face the main body projections 431 of the other side wall 43.

  The central protrusion 431A is a central protrusion among the three main protrusions 431 aligned in the front-rear direction.

  The end protrusions 431B are provided at intervals on the front side and the rear side of the central protrusion 431A. As shown in FIG. 3C, the end protrusion 431B has a lower height than the central protrusion 431A. In other words, the length in the vertical direction (the length of the ridgeline) is short. This is because of the arrangement of the lid (attachment lid 54) of the attachment 50 described later.

  The groove portion 432 is provided in a groove shape (concave shape) between the front end protrusion 431B and the central protrusion 431A on the facing surface of the pair of side wall portions 43. When the attachment 50 is attached to the main body 40, the ridges 533 of the attachment 50 enter the groove 432. Further, as described above, the convex portion 522 of the attachment 50 is inserted into the hole 422. Thus, the alignment between the main body 40 and the attachment 50 is performed, and the positional deviation of the attachment 50 with respect to the main body 40 can be prevented.

  The hinge portion 433 is provided on the upper portion of the right side wall portion 43, and connects the main body lid 44 so as to be able to open and close.

  The lid fixing portion 434 is a protrusion (so-called “return”) for fixing the main body lid 44 in a closed state, and the left side wall portion 43 is engaged with the engaging portion 442 of the main body lid 44. It is provided.

  The main body lid 44 has a lid projection 441 (corresponding to a first lid projection), an engagement portion 442 and a contact portion 443.

  The lid projection 441 is provided on the inner surface of the main body lid 44 (the lower surface when the main body lid 44 is closed), and bites into the jacket of the first cable 3A when the main body lid 44 is closed. The lid projections 441 of the present embodiment are conical projections, and two lid projections 441 are provided in the front-rear direction. The lid projection 441 is provided at a position where the attachment 50 is not in contact with the attachment lid 54 (between the two attachment lids 54).

  The engagement portion 442 is provided at the end of the body lid 44 opposite to the hinge portion 433 and is engaged with and fixed to the lid fixing portion 434 when the body lid 44 is closed. .

  The contact portion 443 is a projecting portion formed on the inner surface of the main body lid 44, and contacts the inclined surface 542 of the attachment lid 54 of the attachment 50 when the main body lid 44 is closed in a state where the attachment 50 is attached. Yes (described later).

  The insertion portion 40B is a portion through which the optical fiber (the first optical fiber 4A of the first cable 3A and the second optical fiber 4B of the second cable 3B) of the optical cable gripped by the grip portion 40A is inserted. Is also provided on the front side.

  The insertion portion 40 </ b> B includes a claw 45. The claw portion 45 is provided so as to protrude from the outer end surface in the left-right direction of the insertion portion 40B. When the gripping member 30 is inserted into the fixing portion 13 of the optical connector main body 10, the claw portion 45 is hooked on the locking portion 13A of the fixing portion 13 as shown in FIG. 3A. Thereby, the gripping member 30 is fixed to the fixing portion 13 (optical connector main body 10).

  The attachment 50 is a member for gripping the second cable 3 </ b> B, and is detachably provided in the gripping portion 40 </ b> A of the main body 40. The attachment 50 includes an attachment body 51 and an attachment lid 54 (corresponding to a second lid).

  The attachment main body 51 includes a bottom wall 52 (corresponding to a second bottom wall) and a side wall 53 (corresponding to a second side wall).

  The bottom wall portion 52 is a portion that constitutes the lower portion (bottom portion) of the attachment main body 51, and includes a bottom protrusion 521, a convex portion 522 (second alignment portion), and a concave portion 523.

  The bottom projection 521 protrudes upward from the bottom wall 52 and bites into the sheath of the second cable 3B (see FIG. 5B).

  The convex portion 522 is inserted into the hole 422 of the main body 40 (fitted with the hole 422). Thereby, position shift of attachment 50 can be prevented.

  The recess 523 is a hole for avoiding interference with the bottom projection 421 of the main body 40. Since two bottom protrusions 421 are provided in the main body 40 of the present embodiment, two recesses 523 are provided corresponding to the bottom protrusions 421 as shown in FIG. 4C.

  The side walls 53 are disposed opposite to each other at the left and right ends of the bottom wall 52. Each of the pair of side wall portions 53 includes an attachment protrusion 531 (corresponding to a second holding projection), a slit 532, a convex stripe portion 533 (corresponding to a second alignment portion), and a hinge portion 534. There is.

  The attachment protrusion 531 protrudes inward from the opposing surface (inner surface) of the pair of side wall portions 53, and is a protrusion along the up and down direction. Similar to the main body projection 431, the attachment projection 531 is formed in a substantially triangular cross section so that the protruding side (inner side) is sharp when viewed from above. The ridgeline of the attachment protrusion 531 is parallel to the vertical direction. When the second cable 3B is accommodated between the pair of side wall portions 53, the attachment protrusion 531 bites into the sheath of the second cable 3B. Three attachment protrusions 531 (a central protrusion 531A and two end protrusions 531B) are disposed in each of the pair of side wall portions 53 in the present embodiment. The three attachment protrusions 531 of one side wall portion 53 are disposed to face the attachment protrusions 531 of the other side wall portion 53.

  The central projection 531A is a central projection of three attachment projections 531 aligned in the front-rear direction.

  The end protrusions 531B are provided at intervals on the front side and the rear side of the central protrusion 531A. As shown in FIGS. 4B and 4C, the end protrusions 531B have a lower height than the central protrusion 531A. In other words, the length in the vertical direction (the length of the ridgeline) is short. In addition, the relationship of arrangement | positioning of the attachment protrusion 531 and the main body protrusion 431 is mentioned later.

  The slit 532 is a portion for avoiding interference with the main body protrusion 431 (the central protrusion 431A and the end protrusion 431B) of the main body portion 40, and is formed at a position corresponding to the main body protrusion 431. At the time of attachment of the attachment 50, the main body projection 431 enters the slit 532. Thereby, the thickness of the side wall 53 can be secured. A groove may be used instead of the slit-like hole.

  The ridges 533 project outward from the outer surface of the side wall 53. The ridges 533 engage with the grooves 432 of the grip 40A when the attachment 50 is attached. Thereby, position shift of attachment 50 can be prevented.

  The hinge portion 534 is provided at the upper end portion of the right side wall portion 53, and connects the attachment lid 54 so as to be able to open and close.

  The attachment lid 54 is a lid for the attachment body 51. Note that two attachment lids 54 are separately provided on the front side and the rear side of the attachment main body 51. This is to avoid interference with the central projection 431A of the main body 40, and to hold the second cable 3B in the vertical direction on the front side and the rear side to hold the cable more reliably (to eliminate rattling) It is.

  The attachment lid 54 has a lid projection 541 and an inclined surface 542.

  The lid projection 541 is provided on the inner surface of the attachment lid 54 (the lower surface when the attachment lid 54 is closed), and cuts into the sheath of the second cable 3B when the attachment lid 54 is closed (see FIG. 5B).

  The inclined surface 542 is formed on the outer surface of the attachment lid 54. The inclined surface 542 is formed at a portion in contact with the contact portion 443 of the lid 44 for the main body, and the contact with the contact portion 443 is inclined such that the attachment lid 54 moves in the closing direction.

  FIG. 5A is a top view of the gripping member 30 when the attachment 50 is attached. FIG. 5B is a rear view of the main body cover 44 and the attachment cover 54 in a closed state. FIG. 5C is a view showing a state when the main body lid 44 is in contact with the attachment lid 54 when the main body lid 44 is closed. FIG. 5A shows a state in which the fixing portion 13 is accommodated (the fixing portion 13 is a cross section), and the main body lid 44 and the attachment lid 54 are not shown.

  As shown in FIG. 5A, the main body projection 431 (the central projection 431A and the end projection 431B) and the attachment projection 531 (the central projection 531A and the end projection 531B) are disposed out of position in the front-rear direction. Specifically, the attachment 50 is provided with a slit 532 at a position corresponding to the main body protrusion 431 of the main body 40, and the main body protrusion 431 enters the slit 532 when the attachment 50 is attached.

  For this reason, when the attachment 50 is attached to the main body 40, the attachment projection 531 is disposed between the main body projections 431. For example, as shown in FIG. 5A, the central projection 531A of the attachment 50 is disposed between the front end projection 431B of the main body 40 and the central projection 431A. By doing so, the thickness of the side wall 53 of the attachment 50 and the attachment protrusion 531 can be secured. Further, as shown in FIG. 5A, the main body protrusion 431 protrudes inside the pair of side wall portions 53 of the attachment 50 through the slit 532, but the tip of the attachment protrusion 531 is inside the tip of the main body protrusion 431 It is located in Thereby, the outer cover of the second cable 3B can be gripped by the attachment protrusion 531.

  Further, as described above, the central protrusion 531A of the attachment protrusion 531 is longer in the vertical direction than the end protrusion 531B. If the attachment lid 54 is formed as one lid without being divided in the front-rear direction, it is necessary to form the central protrusion 531A of the attachment 50 with the same length as the end protrusion 531B. Similarly, the central projection 431A of the main body projection 431 of the main body 40 needs to be formed to have the same length as the end projection 431B. In this case, when gripping the first cable 3A or the second cable 3B, the gripping force may be reduced. In the present embodiment, since the attachment lid 54 is divided into two in the front-rear direction, the central projection 431A of the main body 40 and the central projection 531A of the attachment 50 can be formed long, and the gripping force can be increased. . Further, in the present embodiment, since the attachment lid 54 (lid protrusion 541) is divided into two in the front-rear direction, the second cable B can be pressed in the vertical direction at different positions in the front-rear direction, It can be gripped without hesitation.

  Further, as shown in FIG. 5C, when the main body cover 44 is closed in a state where the attachment 50 is attached (the main body cover 44 and the attachment cover 54 are both open), the contact portion 443 of the main body cover 44 Contacts the inclined surface 542 of the attachment lid 54. Then, when the main body lid 44 is closed, the contact portion 443 pushes the attachment lid 54 downward while sliding on the inclined surface 542. In this manner, the attachment lid 54 can be automatically closed in conjunction with the operation of closing the main body lid 44. In particular, in the present embodiment, the contact portion 443 of the main body lid 44 is configured to be in contact with the inclined surface 542 of the attachment lid 54, so the attachment lid 54 can be easily closed.

<Summary>
According to the above embodiment, the gripping member 30 has the pair of side wall portions 43 (first side wall portion) having the main body projection 431 (first gripping projection), and is accommodated between the pair of side wall portions 43 The main body 40 holds the outer sheath of the first cable 3A with the main body projection 431. The gripping member 30 is attachable between the pair of side walls 43 of the main body 40, and has a pair of side walls 53 (second side wall) having an attachment protrusion 531 (second holding projection). The attachment 50 is provided to hold the outer sheath of the second cable 3B, which has a smaller outer diameter than the first cable 3A, with the attachment protrusion 531. Thereby, the first cable 3A can be reliably gripped by the main body 40, and when the attachment 50 is attached to the main body 40, the second cable 3B can be gripped reliably.

  Further, according to the present embodiment, the main body portion 40 includes the main body lid 44 (first lid), and the attachment 50 includes the attachment lid 54 (second lid). Then, when the main body lid 44 is closed in a state where the attachment 50 is attached, the main body lid 44 contacts the attachment lid 54, and the attachment lid 54 is closed. Thus, by closing the main body cover 44, the attachment cover 54 can be automatically closed.

  Further, according to the present embodiment, the main body lid 44 has the protruding contact portion 443 formed on the inner surface, and the attachment lid 54 has the inclined surface 542 formed on the outer surface. Then, when the main body lid 44 is closed in a state where the attachment 50 is attached, the contact portion 443 of the main body lid 44 is configured to be in contact with the inclined surface 542 of the attachment lid 54. Thereby, the attachment lid 54 can be easily closed.

  Further, according to the present embodiment, the attachment 50 has the two attachment lids 54 in the front-rear direction, and when the attachment 50 is attached to the main body 40, the main assembly projection 431 (FIG. A central projection 431 A) is arranged. Thus, the vertical length of the central protrusion 431A can be increased.

  Further, according to the present embodiment, the side wall 43 of the main body 40 has three main body projections 431 aligned in the front-rear direction (longitudinal direction of the first cable), and the side wall 53 of the attachment 50 It has three attachment protrusions 531 aligned in the direction. When the attachment 50 is attached to the main body 40, the attachment projection 531 is disposed between the main body projections 431. Thereby, the thickness of the side wall 53 of the attachment 50 can be secured.

  Further, according to the present embodiment, the main body portion 40 has the alignment portion (first alignment portion) on the main body portion 40 side, and the attachment 50 is the alignment portion on the attachment 50 side (second alignment portion )have. Then, when the attachment 50 is attached to the main body 40, the alignment between the main body 40 and the attachment 50 is performed by the alignment portion on the main body 40 side and the alignment portion on the attachment 50 side. Thereby, position shift of attachment 50 can be prevented.

  Further, according to the present embodiment, the alignment portion on the main body portion 40 side is the groove portion 432 provided on the side wall portion 43, and the alignment portion on the attachment 50 side is the ridge portion provided on the side wall portion 53. 533. When the attachment 50 is attached to the main body 40, the ridges 533 enter the groove 432. Thereby, position shift of attachment 50 can be prevented easily.

  Further, according to the present embodiment, the alignment portion on the main body 40 side is the hole 422 provided in the bottom wall portion 42 (first bottom wall portion), and the alignment portion on the attachment 50 side is the bottom wall When the attachment 50 is mounted on the main body 40, the convex portion 522 is fitted in the hole 422. The convex portion 522 is provided on the portion 52 (second bottom wall portion). Thereby, position shift of attachment 50 can be prevented simply. Further, in the present embodiment, since the hole 422 penetrates the bottom wall portion 42, the first cable 3A and the attachment 50 (and the second cable 3B) can be easily removed.

=== Second Embodiment ===
6A to 6C are perspective views of the gripping member 30 according to the second embodiment. FIG. 6A is a perspective view of a state in which the second cable 3B is gripped. FIG. 6B is a perspective view with the attachment 50 ′ removed. FIG. 6C is a perspective view of a state in which the first cable 3A is gripped. The same reference numerals are given to parts having the same configuration as the first embodiment, and the description will be omitted.

  The gripping member 30 according to the second embodiment includes a main body 40 and an attachment 50 '.

  The attachment 50 ′ is a configuration of only the attachment main body 51. That is, the attachment 50 'of the second embodiment differs from the first embodiment in that the attachment lid is not provided.

  Thus, in the second embodiment, the lid of the gripping member 30 is only the lid 44 for the main body. Also in this case, by attaching the attachment 50 ′, the outer sheath of the second cable 3B can be gripped by the attachment protrusion 531.

  In this case, the end projection 531B of the attachment projection 531 may have a length substantially equal to that of the central projection 531A. Similarly, the end protrusion 431B of the main body 40 may have the same length as the central protrusion 431A.

=== Others ===
The above embodiments are for the purpose of facilitating the understanding of the present invention, and are not for the purpose of limiting the present invention. It goes without saying that the present invention can be modified and improved without departing from the gist thereof, and that the present invention includes equivalents thereof.

3 optical cable, 3A 1st cable, 3B 2nd cable,
4 optical fiber, 4A first optical fiber, 4B second optical fiber,
10 optical connector body, 12 housings,
13 fixed part, 13A locking part,
19 Interposition member, 19A wedge,
30 gripping members,
40 body part, 40A grip part, 40B insertion part,
42 bottom wall, 43 side wall, 44 lid for body, 45 claws,
50 attachments, 51 attachments body,
52 bottom wall, 53 side wall, 54 attachment lid 100 optical connector,
421 bottom projection, 422 holes,
431 body projection, 431A central projection, 431B end projection,
432 groove part, 433 hinge part, 434 lid fixing part,
441 lid projection, 442 engagement portion, 443 contact portion,
521 bottom protrusion, 522 protrusion, 523 recess,
531 attachment projection, 531A central projection, 531B end projection,
532 slits, 533 ridges, 534 hinges,
541 lid projection, 542 inclined surface

The main invention for achieving the above object has a pair of first side wall portions having a first gripping projection, and the first cable sheath housed between the pair of first side wall portions is It has a pair of second side wall portions that can be mounted between the main body portion held by the holding projection and the pair of first side wall portions and has the second holding projection, and has an outer shape than the first cable And an attachment for holding a small second cable sheath by the second holding projection, and the first side wall portion has a plurality of the first holding projections arranged in the longitudinal direction of the first cable. The second side wall portion includes a plurality of second holding protrusions arranged in the longitudinal direction of the second cable and a slit, and when the attachment is attached to the main body portion, the first side wall portion The second gripping projection is disposed between the gripping projections; The holding projection enters the slit, and the first holding projection protrudes inward from the pair of second side walls, and the tip of the second holding projection is more than the tip of the first holding projection It is a gripping member characterized by being located inside .

Claims (8)

A main body portion having a pair of first side wall portions having a first holding projection, the outer sheath of the first cable accommodated between the pair of first side wall portions being held by the first holding projection;
A jacket of a second cable which is attachable between the pair of first side walls and has a pair of second side walls having a second gripping projection, and which has a smaller outer diameter than the first cable; (2) A gripping member comprising: an attachment gripped by the gripping projection. A gripping member according to claim 1, wherein
The body portion has a first lid,
The attachment has a second lid,
A gripping member characterized in that when the first lid is closed in a state in which the attachment is attached, the first lid contacts the second lid and the second lid closes. The gripping member according to claim 2, wherein
The first lid has a protruding contact portion formed on the inner surface,
The second lid has an inclined surface formed on the outer surface,
When the first lid is closed in a state where the attachment is mounted, the contact portion of the first lid contacts the inclined surface of the second lid,
A gripping member characterized by; A gripping member according to claim 2 or 3, wherein
The attachment has at least two of the second lids,
When the attachment is attached to the main body, the first gripping projection is disposed between the second lid,
A gripping member characterized by; It is a holding member in any one of Claims 1-4, Comprising:
The first side wall portion has a plurality of the first gripping projections aligned in the longitudinal direction of the first cable,
The second side wall portion has a plurality of the second holding protrusions arranged in the longitudinal direction of the second cable,
When the attachment is attached to the main body, the second holding projection is disposed between the first holding projections.
A gripping member characterized by; The gripping member according to any one of claims 1 to 5, wherein
The main body portion has a first alignment portion,
The attachment has a second alignment portion,
When the attachment is attached to the main body, the first alignment portion and the second alignment portion align the main body with the attachment.
A gripping member characterized by; The gripping member according to claim 6, wherein
The first alignment portion is a groove portion provided in the first side wall portion,
The second alignment portion is a ridge provided on the second side wall portion,
When the attachment is attached to the main body, the ridges enter the groove;
A gripping member characterized by; The gripping member according to claim 6, wherein
The first alignment portion is a hole formed in an erected first bottom wall portion of the pair of first side wall portions,
The second alignment portion is a convex portion formed on an erected second bottom wall portion of the pair of second side wall portions,
When the attachment is attached to the main body, the projection fits into the hole.
A gripping member characterized by;

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