JP2002350677A - Plug inserter, plug extractor, and plug attaching and detaching tool equipped with the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a plug inserter, a plug extractor, and a plug attaching and detaching tool equipped with them which have very simple structures and can greatly be reduced in cost by minimizing the number of components. SOLUTION: The plug inserter 10 for an optical connector has a grip part 11, a 1st holding part 13 which holds a knob 2a in itself, and a projection part 19 which is inserted into an adapter while abutting against the rear end part of the knob 2a held in the 1st holding part 13 and is formed as one component. The plug extractor 20 has a grip part 21 and an engagement projection part 27 which holds a boot part 3b and is pulled out while engaging a window part 2d bored in the knob 2a and is formed as one component and the plug attaching and detaching tool 30 has the plug inserter 10 and plug extractor 20.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plug insertion / removal tool, a plug removal / removal tool, and a plug removal / removal tool provided with the same, and more particularly, to an optical connector plug provided at an end of an optical fiber cable. The present invention relates to a plug insertion tool, a plug removal tool for inserting and fixing to a connector adapter, and a plug removal tool, and a plug removal tool provided with them.

[0002]

2. Description of the Related Art FIG. 7 shows an optical connector described above. The optical connector 200 includes a plug 2 and an adapter 4 into which the plug 2 is inserted.

The plug 2 is, as shown in FIGS.
A plug body 2b made of a prismatic member made of synthetic resin;
A knob 2a is attached so as to surround the four circumferences of the plug body 2b and to be slidable in the axial direction of the plug body 2b (the direction of arrow X in FIG. 8). Inside the plug body 2b, a ferrule 3a through which an optical fiber (not shown) provided in the optical fiber cable 3 passes along the central axis is freely held. A tapered boot part 3b is formed around the optical fiber cable 3 near the plug 2 shown in FIG.

[0004] On the side surface of the plug body 2b, a convex portion 2c with which a pair of elastic claws 4c, 4c of the adapter 4 engage is formed so as to face each other. On the other hand, the side surface of the knob 2a is also formed.
The window 2d with which the engaging projection 27 of the plug removal tool 20 described later is engaged is formed so as to face the window 2d. Knob 2a
Has an opening 2f through which a pair of elastic claws 4c of the adapter 4 can pass, and inclined surfaces 2e formed on both ends of the opening 2f.

On the other hand, the adapter 4 has openings 4d at both ends.
The ferrule 3a of the plug 2 is inserted from both sides into a sleeve 4h communicating internally, and the end faces are brought into contact with a common optical axis to connect an optical cable. A pair of elastic claws 4c and 4c of the adapter 4 are provided with an arm 4e that is elastically deformed in the direction of arrow Y in FIG. 8 and a hook formed at the tip of the arm 4e and engaged with the projection 2c of the plug body 2b. 4f and projections 4g formed on both sides of the hooking portion 4f.

When the plug 2 is inserted into the adapter 4, the arm 4e of the elastic claw 4c is elastically deformed, and the engaging portion 4f engages with the convex portion 2c of the plug body 2b through the opening 2f of the knob 2a. Thus, the plug 2 is fixed to the adapter 4.

On the other hand, the knob 2a is
Is relatively moved backward (to the left in FIG. 8),
The protruding portion 4g of the elastic claw 4c rides so as to slide along the inclined surface 2e of the knob 2a, and elastically deforms the arm 4e to the disengaged position. In this state, the plug 2 can be removed from the adapter 4 by pulling out the plug 2 from the adapter 4.

Incidentally, the optical connector shown in FIGS. 7 and 8 has a plurality of plugs to be connected,
The size of each plug has also been reduced. further,
For example, these optical connectors are often mounted at a high density on a wiring panel of an optical fiber such as a public communication line, and are often installed deep in a gap of another connection cable or the like. Therefore, with these optical connectors, it may be difficult for a worker to manually extract only a predetermined plug from a predetermined position of the adapter or insert a predetermined plug into a predetermined position of the adapter.

Therefore, as disclosed in Japanese Patent Application Laid-Open No. 7-20354, even when the optical connector is installed at a high density and deep, only a predetermined plug is reliably removed from a predetermined position of the adapter. Alternatively, a plug attaching / detaching tool capable of inserting a predetermined plug into a predetermined position of an adapter is provided (see FIG. 9).

[0010]

However, Japanese Patent Application Laid-Open No. Hei 7-2
The plug removal tool 100 disclosed in
Since there is a structure in which the same tool is used to open and close the locking claw 120 by operating the switch 101 for insertion and removal, there is a problem that the structure is complicated and the number of parts is large. There is also a problem that the manufacturing cost is high.

Accordingly, the present invention provides a plug insertion / removal tool, a plug removal / removal tool, and a plug removal / removal tool provided with the same, which are extremely simple in structure and can greatly reduce costs by minimizing the number of parts. The purpose is to provide tools.

[0012]

According to the first aspect of the present invention, there is provided an optical connector for inserting and fixing an optical connector plug provided at an end of an optical fiber cable into an optical connector adapter. A plug insertion tool, a grip portion having a predetermined length, a first holding portion formed at an end of the grip portion and holding the knob of the optical connector plug,
It is formed so as to protrude inward from the first holding portion, and is inserted into the optical connector adapter while being in contact with the rear end of the knob of the optical connector held by the first holding portion. And a projection for insertion into the adapter for optical connector, and these are formed as a single component.

According to a second aspect of the present invention, there is provided a plug insertion device according to the first aspect, wherein the plug is formed between a holding portion and a first holding portion, and is provided near an optical connector plug. And a second holding portion for holding a boot portion formed around the optical fiber cable.

According to a third aspect of the present invention, there is provided a plug insertion tool according to the first or second aspect, wherein the first holding portion is configured so that the optical connector plug does not rattle. The optical connector plug is characterized in that support portions for supporting both side surfaces of the optical connector plug are provided.

According to a fourth aspect of the present invention, there is provided a plug removing tool for removing an optical connector plug inserted and fixed to an optical connector adapter.
A grip portion having a predetermined length and a boot portion formed at an end of the grip portion and formed around the optical fiber cable in a portion adjacent to the optical connector plug, and the end portion of the boot portion is connected to the optical connector plug. Formed at the end of the rectangular portion adjacent to the boot holding portion formed so as to abut the rear end portion of the knob of the optical connector plug, for pulling out while being engaged with the window portion formed in the knob of the optical connector plug. And a plug removal tool having an engaging projection and being formed as one piece.

According to a fifth aspect of the present invention, there is provided the invention as set forth in any one of the first to third aspects, wherein one end of a grip portion formed to a predetermined length is inserted. And a plug removal tool provided with the plug removal tool according to claim 3 on the other end side of the grip portion.

According to a sixth aspect of the present invention, there is provided a plug attaching / detaching tool according to the fifth aspect of the present invention, wherein the grip portion is extendable.

[0018]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view showing a plug insertion / removal tool, a plug removal / removal tool, and a plug attachment / removal tool provided with the same according to the present invention. FIG. 1 is a perspective view of one embodiment of a plug insertion tool according to the present invention, and FIG. 2 is a perspective view of one embodiment of a plug removal tool according to the present invention.

First, the plug fitting 10 shown in FIG.
Schematically, a holding portion 11 formed to a predetermined length, a second holding portion 17 holding a boot portion 3b formed around the optical fiber cable 3 near the optical connector plug 2,
A first holding portion formed adjacent to the second holding portion and holding the knob of the plug of the optical connector so as to hold the knob; The optical connector 4 is inserted into the optical connector adapter 4 as shown in FIG. 5 while being in contact with the rear end of the optical connector knob 2b formed and held by the first holding portion 13. Projection 1 for insertion into
9 is provided.

The grip portion 11 is a portion held by a worker when the optical connector plug 2 held by the plug insertion tool 10 is mounted on the adapter 4, and is a predetermined portion which can be gripped by at least a human hand. It only needs to have a length. Also,
Of course, the gripping portion 11 can be formed not in a flat plate shape but in a shape that is easy to hold in a hand.

The first holding portion 13 is formed on one end side of the grip portion 11, and has holding surfaces 13a, 13a in contact with both side surfaces of the knob 2a provided with the window 2d; Tabs 13b, 13b formed so that a part of both sides of 13a are bent at substantially right angles. The first holding portion 13 is attached from the rear side of the plug 2 so that the holding surfaces 13a, 13a
The tabs 13b, 13b support the two corners of the knob 2a, respectively, and hold the plug 2 securely so that the plug 2 does not fall.

On the holding surfaces 13a, 13a are formed projections 19 projecting inward, and the projections 19 are provided with knobs 2b of the optical connector held on the first holding portion 13.
It comes into contact with the rear end. When the plug 2 is inserted into the optical connector adapter 4 as shown in FIG. 5A while the plug 2 is held by the first holding portion 13, the projection 19 presses the rear end of the knob 2b. , Plug 2
Is completed in the adapter 4.

The first holding portion 13 has support portions 15, 1 for supporting both side surfaces of the optical connector 2 so that the plug 2 does not rattle when the optical connector plug 2 is held.
5 are provided. The support portions 15 have an arm-like shape extending from the holding surfaces 13 a of the first holding portion 13 along the side surface of the plug 2. Note that the distal ends of the support portions 15, 15 are slightly open outward so that the plug 2 can be easily mounted.

Between the grip 11 and the first holding portion 13, a substantially U-shape is formed in which a part holding the boot 3b attached around the optical fiber cable 3 near the plug 2 is opened. Is formed. The substantially U-shaped tip portion has a falling-off preventing portion 17a bent at a substantially right angle. The length L1 of the opening is slightly smaller than the diameter of the portion near the knob 2a of the boot portion 3b formed in a tapered shape. Holder 17
Of the boot portion 3b firmly holds the portion of the boot portion 3b close to the knob 2a, so that the plug 2 is securely held together with the first holding portion 13 to prevent the plug 2 from falling off at the time of insertion.

The above-mentioned plug insertion tool 10 is integrally formed as a single component by pressing using a metal material such as stainless steel or iron. Also, the plug insert 10
Can be formed using a synthetic resin such as plastic or a wooden material. As a result, the number of parts is minimized and the structure is extremely simple, so that the manufacturing cost and labor can be significantly reduced as compared with the conventional product.

Next, a plug removal tool according to the present invention will be described. The plug removal tool 20 shown in FIG. 2 includes a grip portion 21 having a predetermined length, a boot holding portion 23 formed at an end of the grip portion 21, and a knob 2a of the optical connector plug 2. It is formed to have an engaging projection 27 for pulling out while being engaged with the perforated window 2d.

The grip portion 21 is a portion that is held by a worker when the optical connector plug 2 inserted into the adapter 4 is pulled out, and is at least similar to the grip portion 11 of the plug insertion device 10. What is necessary is just to have a predetermined length which can be gripped by the hand. Further, the grip portion 21 may be formed in a shape that is easy to hold in a hand, instead of simply having a flat shape.

The boot holding portion 23 is formed to have a substantially U-shape partially open at one end side of the grip portion 21, and a tip portion of the U-shape is bent at substantially a right angle. It has a falling-off prevention portion 23a, and holds a tapered boot portion formed around the optical fiber cable 3b in a portion adjacent to the plug 2 to prevent the falling-off portion. Opening length L
2 is formed so that the diameter of the tapered boot portion 3b is slightly smaller than the diameter of the portion near the knob 2a, so that the boot holding portion 23 firmly holds the portion of the boot portion 3b near the knob 2a and pulls out. Prevents the plug 2 from falling off at the time of removal. Further, the tip portions 23b, 23 of the boot holding portion 23
The movement of b is restricted so that it abuts on the rear end of the knob 2a of the plug 2 and does not proceed any further.

The engaging projection 27 is formed at the tip of the rectangular portion 25 adjacent to the boot holding portion 23. The engagement protrusion 27 is formed at a position where the front end portion 23b of the boot holding portion 23 is engaged with the window 2d formed in the knob 2a in a state where the front end portion 23b contacts the rear end of the knob 2a of the plug 2. Have been. Then, as shown in FIG. 5B, when the engagement protrusion 27 is pulled out in a state of being engaged with the window 2d (in the direction of the arrow), the plug 2 is removed from the adapter 4.

The plug removal / attachment tool 20, like the above-described plug insertion / attachment tool 10, is integrally formed as a single component by press working with a metal material such as stainless steel or iron.
It is also possible to use a synthetic resin such as plastic or a wooden material.

Plug insertion / removal tool 10 and plug removal / removal tool 20
As shown in FIG. 6, the gripper 1 on the plug insertion device 10 side
By connecting the end of the handle 1 and the end of the grip 21 on the side of the plug removal / attachment tool 20 with a chain 40, it is possible to immediately cope with both the insertion work and the removal work. .

Next, the plug attachment / detachment tool shown in FIGS. 3 and 4 will be described. Plug attachment / detachment tool 30 in this embodiment
Is provided with the above-described plug insertion tool 10 at one end of a flat holding portion 31 and the above-described plug removal tool 20 at the opposite end. This allows
Insertion and extraction work can be performed with one device. Since the plug insertion tool 10 and the plug removal tool 20 have the same configuration as described above, their description is omitted.

In this case, the grip 31 can be made extendable. By making the grip portion 31 extendable, it becomes easy to perform the work of inserting and removing the adapter 4 disposed in the back of the board and the work of removing the work. Specifically, the grip part 31 is divided into two parts at a substantially central portion, and the grip part 31 is nested. A convex portion is formed on the side surface of the outer grip portion 31 at a predetermined interval along the longitudinal direction, and a hook portion that is hooked on the convex portion is formed on the side surface of the inner grip portion 31. Thereby, when the grip portion 31 is pulled out, the engaging portion is hooked on the convex portion, and its length state is maintained. If necessary, the grip portion 31 is further pulled out or contracted. The expansion and contraction structure is not limited to this, and an appropriate structure such as screwing the telescopically formed grip portion 31 at a predetermined length can be adopted.

Next, the operation of the plug insertion tool 10 and the plug removal tool 20 according to the present invention will be described with reference to FIG. FIG. 5A is a partial side sectional view when the plug 2 is inserted into the adapter 4. First, the optical fiber cable 3 located on the rear side of the plug 2 enters the opening of the second holding portion 17 of the plug insertion device 10 and moves toward the plug 2. Then, the boot portion 3b is moved to the second holding portion 1
7 and the holding surface 13 of the first holding portion 13
a, 13a hold the rear side of the knob 2a,
3b and 13b support the four corners of the knob 2a. Thus, the plug 2 is held so as not to drop. Then, the projection 19 comes into contact with the rear end of the knob 2b. When the plug 2 is inserted into the adapter 4 in this state, the protrusion 19 presses the rear end of the knob 2b, and the insertion of the plug 2 into the adapter 4 is completed.

On the other hand, when removing the plug 2 inserted into the adapter 4, the boot holding portion 2 of the plug removal tool 20 is removed.
The optical fiber cable 3 enters the opening 3 and moves toward the plug 2. Then, the boot holding portion 23 firmly holds a portion of the boot portion 3b close to the knob 2a. Then, the tip portions 23b, 23b of the boot holding portion 23
Abuts on the rear end of the knob 2a of the plug 2 and engages the engaging projection 27 with the window 2d. When the plug 2 is pulled out in this state, the plug 2 is pulled out of the adapter 4.

[0036]

According to the plug insertion / removal tool, the plug removal / removal tool and the plug removal / removal tool provided with them, the structure is extremely simple and the number of parts is kept to the minimum necessary. Thus, it is possible to achieve a significant cost reduction. In addition, the first holding portion, the second holding portion, and the boot holding portion have an effect that the plug 2 can be prevented from dropping during insertion / removal work.

[Brief description of the drawings]

FIG. 1 is a perspective view of an embodiment of a plug insertion device according to the present invention.

FIG. 2 is a perspective view of an embodiment of a plug removal tool according to the present invention.

FIG. 3A is a plan view of one embodiment of a plug attaching / detaching tool,
(B) is a side view thereof.

4A is a bottom view of the plug attaching / detaching tool of FIG. 4, and FIG.
FIG. 3 is a side view of the plug insertion tool side, and FIG. 3C is a side view of the plug removal tool side.

FIG. 5A is a partial side sectional view when a plug is inserted into an adapter, and FIG. 5B is a partial side sectional view when a plug is removed from the adapter.

FIG. 6 shows a chain 40 with a plug insertion tool and a plug removal tool.
It is a top view of the state connected by.

FIG. 7 is a perspective view showing an example of an optical connector plug and an optical connector adapter.

FIG. 8 is a partial cross-sectional view showing an example of an optical connector plug and an optical connector adapter.

FIG. 9 is a perspective view of a conventional plug attaching / detaching tool.

[Explanation of symbols]

 Reference Signs List 2 Plug 3 Optical fiber cable 3b Boot section 10 Plug insertion tool 11 Gripping section 13 First holding section 13a Holding surface 13b Claw 15 Support section 17 Second holding section 17a Fall prevention section 19 Projection section 20 Plug removal tool 21 Gripping part 23a Fall prevention part 23b Tip part 25 Rectangular part 27 Engagement protrusion part 30 Plug attaching / detaching tool 31 Gripping part

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Hiroshi Otani 5-7-1 Shiba, Minato-ku, Tokyo Inside NEC Corporation (72) Inventor Shintaro Fujioka 5-7-1 Shiba, Minato-ku, Tokyo Japan F-term (reference) in Electric Co., Ltd. 2H036 QA47 QA57

Claims (6)

[Claims] 1. A plug insertion tool for inserting and fixing an optical connector plug disposed at an end of an optical fiber cable into an optical connector adapter, comprising: a grip portion having a predetermined length; A first holding portion formed at an end of the first holding portion and holding the knob of the optical connector plug, and a first holding portion formed to project inward from the first holding portion. A projection for being inserted into the optical connector adapter by being inserted into the optical connector adapter in a state in contact with the rear end of the knob of the optical connector held by, and A plug insertion device characterized in that these are formed as one component. 2. The plug insertion device according to claim 1, wherein the boot is formed between the grip portion and the first holding portion, and is formed around an optical fiber cable near the optical connector plug. A plug insertion tool comprising a second holding part for holding the part. 3. The plug insertion tool according to claim 1, wherein the first holding portion supports both side surfaces of the optical connector plug so that the optical connector plug does not rattle. A plug insertion tool characterized in that a plug insertion tool is provided. 4. A plug removal tool for removing an optical connector plug inserted and fixed to an optical connector adapter, comprising: a grip portion having a predetermined length; and an end portion of the grip portion; A boot holding portion formed to hold a boot portion formed around the optical fiber cable in a portion adjacent to the optical connector plug and to have an end thereof abutting on a rear end of a knob of the optical connector plug; And formed at the tip of the rectangular portion adjacent to the boot holding portion,
And an engaging projection for pulling out the optical connector plug while being engaged with a window formed in a knob of the optical connector plug, and these are formed as a single component. Utensils. 5. A plug insertion tool according to claim 1, which is provided at one end of a grip formed to a predetermined length, and is provided at the other end of the grip. A plug removal tool comprising the plug removal tool according to claim 3. 6. The plug attaching / detaching tool according to claim 5, wherein the grip portion is extendable.