JP2560577Y2 - Optical cable tow gripping tool - Google Patents
Optical cable tow gripping toolInfo
- Publication number
- JP2560577Y2 JP2560577Y2 JP2281592U JP2281592U JP2560577Y2 JP 2560577 Y2 JP2560577 Y2 JP 2560577Y2 JP 2281592 U JP2281592 U JP 2281592U JP 2281592 U JP2281592 U JP 2281592U JP 2560577 Y2 JP2560577 Y2 JP 2560577Y2
- Authority
- JP
- Japan
- Prior art keywords
- blocks
- optical cable
- wedge
- gripping
- shaped inner
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Light Guides In General And Applications Therefor (AREA)
Description
【0001】[0001]
【産業上の利用分野】この考案は、管路に挿通された光
ファイバケーブル(以下「光ケーブル」という)を側面
から把持して牽引する光ケーブル牽引用把持工具(以下
「把持工具」という)に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical cable pulling and gripping tool (hereinafter, referred to as a "grip tool") for gripping and pulling an optical fiber cable (hereinafter, referred to as an "optical cable") from a side surface thereof.
【0002】[0002]
【従来の技術】図6は、マンホール内に布設された光ケ
ーブルを示す横断面図である。図示されるように、管路
80内に布設された光ケーブル82は、マンホール84
の内壁86に沿わせてケーブル受け金物88に載置され
る。つまり、光ケーブル82を一点鎖線で示すように管
路80に挿通させた後、実線で示す分だけたるませる作
業(余長取り作業)が必要になる。この作業は数人の作
業者が光ケーブル82を手でつかみそのまま引っ張っる
というものであった。2. Description of the Related Art FIG. 6 is a cross sectional view showing an optical cable laid in a manhole. As shown, an optical cable 82 laid in a conduit 80 is connected to a manhole 84.
Is mounted on the cable receiving hardware 88 along the inner wall 86 of the cable. That is, it is necessary to insert the optical cable 82 into the conduit 80 as shown by a dashed line and then to make the optical cable 82 slack by an amount shown by a solid line (extra length work). In this operation, several workers grasped the optical cable 82 by hand and pulled it as it was.
【0003】[0003]
【考案が解決しようとする課題】しかしながら、このよ
うな光ケーブルを引っ張る作業では、完全な手作業であ
るため作業性が悪く、また、光ファイバはたいへん脆い
ので不慣れな作業者によって光ファイバを損傷させてし
まうこともあった。そこで、この考案の目的は、作業性
を向上できるとともに、作業時の光ファイバの損傷等を
防止できる把持工具を提供することにある。However, such an operation of pulling an optical cable is a complete manual operation, so the workability is poor, and the optical fiber is very brittle, so that an unskilled worker may damage the optical fiber. Sometimes it happened. Therefore, an object of the present invention is to provide a gripping tool that can improve workability and prevent damage to an optical fiber during work.
【0004】[0004]
【課題を解決するための手段】この考案に係る把持工具
は、二個のブロックから構成され各ブロックの対向側に
は光ケーブル受け溝が形成されるとともに各ブロックの
外側には傾斜面が形成された楔状外形の把持部材と、二
個の上記ブロックを開閉自在に連結するとともに二個の
上記ブロックを閉方向に付勢する連結部材と、上記把持
部材をスライド自在に挿嵌しその押し込み量に応じて二
個の上記ブロックの間隔が狭くなる楔状内壁が形成され
たケースと、上記楔状内壁に着脱自在に取付けられ上記
把持部材の挿嵌方向へのスライドを止める係止部材とを
備えたものである。また、上記連結部材は、二個のブロ
ックの一方に固着され他方にスライド自在に貫通した軸
と二個の上記ブロックを閉方向に付勢するばねとから構
成されたもとしてもよい。The gripping tool according to the present invention is composed of two blocks, an optical cable receiving groove is formed on the opposite side of each block, and an inclined surface is formed outside each block. A gripping member having a wedge-shaped outer shape, a connecting member for connecting the two blocks openably and closably and urging the two blocks in a closing direction, A case in which a wedge-shaped inner wall in which the interval between the two blocks is narrowed in accordance therewith, and a locking member detachably attached to the wedge-shaped inner wall to stop the gripping member from sliding in the insertion direction. It is. Further, the connecting member may include a shaft fixed to one of the two blocks and slidably penetrating the other of the two blocks, and a spring for urging the two blocks in the closing direction.
【0005】[0005]
【作用】把持部材を構成する二個のブロックを、連結部
材の付勢力に抗して手で開き、光ケーブルを光ケーブル
受け溝に挿入する。二個のブロックから手を離すと、光
ケーブルは連結部材の付勢力によって二個のブロック間
に把持される。この状態で把持部材をケースに挿嵌して
ケースを牽引方向へ引っ張る。すると、光ケーブルはそ
の自重により動きにくいので、把持部材が楔状内壁をス
ライドしてその押し込み量に応じて二個のブロックの間
隔が狭くなり、光ケーブルに対する把持力が大きくな
る。把持部材のスライドは係止部材により所定の部分で
止まり、光ケブルの側圧は所定の値に設定される。The two blocks constituting the holding member are opened by hand against the urging force of the connecting member, and the optical cable is inserted into the optical cable receiving groove. When the hands are released from the two blocks, the optical cable is gripped between the two blocks by the urging force of the connecting member. In this state, the gripping member is inserted into the case and the case is pulled in the pulling direction. Then, since the optical cable is hard to move due to its own weight, the gripping member slides on the wedge-shaped inner wall, and the interval between the two blocks is reduced according to the amount of pushing, thereby increasing the gripping force on the optical cable. The sliding of the gripping member is stopped at a predetermined portion by the locking member, and the lateral pressure of the optical cable is set to a predetermined value.
【0006】[0006]
【実施例】図1乃至図5はこの考案に係る把持工具の一
実施例を示し、図1は全体斜視図、図2は分解斜視図、
図3は図1における III−III 線縦断面図、図4は二個
のブロックを開いた状態を示す縦断面図、図5は図1に
おける V−V 線要部縦断面図である。以下、これらの図
面に基づき詳しく説明する。1 to 5 show an embodiment of a gripping tool according to the present invention. FIG. 1 is an overall perspective view, FIG. 2 is an exploded perspective view,
3 is a vertical sectional view taken along the line III-III in FIG. 1, FIG. 4 is a vertical sectional view showing a state where two blocks are opened, and FIG. 5 is a vertical sectional view taken along a line VV in FIG. Hereinafter, a detailed description will be given based on these drawings.
【0007】この考案に係る把持工具10は、ブロック
12a、12bから構成されブロック12a、12bの
対向側には光ケーブル受け溝14a、14bが形成され
るとともにブロック12a、12bの外側には傾斜面1
6a、16bが形成された楔状外形の把持部材18と、
ブロック12a、12bを開閉自在に連結するとともに
ブロック12a、12bを閉方向に付勢する連結部材2
0と、把持部材18をスライド自在に挿嵌しその押し込
み量に応じてブロック12a、12bの間隔Dが狭くな
る楔状内壁22a、22bが形成されたケース24と、
楔状内壁22a、22bに着脱自在に取付けられ把持部
材18の挿嵌方向へのスライドを止める係止部材26と
を備えたものである。また、連結部材20は、ブロック
12aに固着されブロック12bにスライド自在に貫通
した軸30とブロック12a、12bを閉方向に付勢す
るばね32とから構成されている。The gripping tool 10 according to the present invention is composed of blocks 12a and 12b, and optical cable receiving grooves 14a and 14b are formed on opposite sides of the blocks 12a and 12b, and an inclined surface 1 is formed outside the blocks 12a and 12b.
A gripping member 18 having a wedge-shaped outer shape on which 6a and 16b are formed;
A connecting member 2 for connecting the blocks 12a and 12b to be freely opened and closed and for urging the blocks 12a and 12b in the closing direction.
0, a case 24 formed with wedge-shaped inner walls 22a, 22b in which the gripping member 18 is slidably inserted and the distance D between the blocks 12a, 12b is narrowed according to the amount of pushing, and
A locking member 26 is attached to the wedge-shaped inner walls 22a and 22b so as to be detachable and stops the gripping member 18 from sliding in the insertion direction. The connecting member 20 includes a shaft 30 fixed to the block 12a and slidably penetrating the block 12b, and a spring 32 for urging the blocks 12a and 12b in the closing direction.
【0008】ブロック12a、12bは、アルミニウム
等の金属から形成され、それぞれの対向面に断面が半円
状のゴムスリーブからなる光ケーブル受け溝14a、1
4bが設けられている。ブロック12a、12bには、
幅の広い前面40a、40bと幅の狭い後面42a、4
2bとが傾斜面16a、16bを挟んで形成され、前面
40a、40b側が牽引方向になる。The blocks 12a and 12b are made of a metal such as aluminum, and have optical cable receiving grooves 14a and 14a formed of a rubber sleeve having a semicircular cross section on their opposing surfaces.
4b is provided. In blocks 12a and 12b,
Wide front faces 40a, 40b and narrow rear faces 42a, 4b
2b are formed with the inclined surfaces 16a and 16b interposed therebetween, and the front surfaces 40a and 40b are in the traction direction.
【0009】連結部材20は、ブロック12a、12b
の上部の突片44a、44bに設けられている。突片4
4a、44bには、孔内に圧縮ばねとともに埋設された
小球46a、46bと、回動軸48によって突片44a
に一端が取付けられたストッパ50とが設けられてい
る。ストッパ50の他端には係合孔52が穿設されてお
り、通常は係合孔52を小球46aに係合させている
が、ブロック12a、12bを開いた状態に保持する場
合には係合孔52を小球46bに係合させる。また、ば
ね32は、圧縮ばねであり、ブロック12bと軸30の
頭部54との間に嵌装されている。The connecting member 20 includes blocks 12a and 12b.
Are provided on the upper protrusions 44a and 44b. Protruding piece 4
4a and 44b are provided with small balls 46a and 46b embedded in the holes together with compression springs,
And a stopper 50 having one end attached thereto. An engagement hole 52 is formed in the other end of the stopper 50, and the engagement hole 52 is normally engaged with the small ball 46a. However, when the blocks 12a and 12b are held in an open state, The engagement hole 52 is engaged with the small ball 46b. The spring 32 is a compression spring, and is fitted between the block 12b and the head 54 of the shaft 30.
【0010】ケース24は、ステンレス板等から折曲形
成され、幅の広い前方に開口部56が形成され、開口部
56のさらに前方に突出し片58が折り曲げ延出され、
突出し片58に係止具としてのチェーン60が取付けら
れている。開口部56の後方には、楔状内壁22a、2
2bが形成されている。楔状内壁22a、22bの上部
には掛止片62a、62bが、下部には底面64が、後
方には幅の狭い係止面66がそれぞれ形成されている。
係止面66はU字状に切り欠かれ光ケーブル82を挿入
可能となっている。The case 24 is formed by bending a stainless steel plate or the like, has an opening 56 formed in a wide front, and projects further forward of the opening 56 so that a piece 58 is bent and extended.
A chain 60 as a locking tool is attached to the protruding piece 58. Behind the opening 56, the wedge-shaped inner walls 22a, 2
2b is formed. Hook pieces 62a and 62b are formed on the upper portions of the wedge-shaped inner walls 22a and 22b, a bottom surface 64 is formed on the lower portion, and a narrow locking surface 66 is formed on the rear side.
The locking surface 66 is cut out in a U-shape so that the optical cable 82 can be inserted.
【0011】係止部材26は、略U字状のアルミニウム
等の金属からなり、幅の広い前面68、幅の狭い後面7
0、前面68と後面70との間の小傾斜面72a、72
b、光ケーブル82を挿入可能な大きさのU字溝74等
が形成されている。係止部材26は、係止面66に当接
するように、楔状内壁22a、22bに着脱自在に取付
けられる。また、係止面66の外から螺入された小ねじ
76a、76bによって係止面66から離間して位置付
けることもできる。さらに、係止部材26の前面68か
ら後面70までの長さLは、光ケーブル82の径に応じ
て異なる。The locking member 26 is made of a substantially U-shaped metal such as aluminum, and has a wide front surface 68 and a narrow rear surface 7.
0, small inclined surfaces 72a, 72 between the front surface 68 and the rear surface 70
b, a U-shaped groove 74 or the like large enough to insert the optical cable 82 is formed. The locking member 26 is detachably attached to the wedge-shaped inner walls 22a and 22b so as to abut on the locking surface 66. Further, it can be positioned away from the locking surface 66 by small screws 76a and 76b screwed from outside the locking surface 66. Further, the length L from the front surface 68 to the rear surface 70 of the locking member 26 differs depending on the diameter of the optical cable 82.
【0012】次に、把持工具10の作用を説明する。必
要に応じ、ケース24の開口部56から係止部材26を
挿入しておく。係止部材26は、後面70が係止面66
に、小傾斜面72a、72bが楔状内壁22a、22b
にそれぞれ当接する。把持部材18を構成するブロック
12a、12bを、連結部材20のばね32の付勢力に
抗して手で開き(図4)、光ケーブル82を光ケーブル
受け溝14a、14bに挿入する。ブロック12a、1
2bから手を離すと、光ケーブル82はばね32の付勢
力によってブロック12a、12b間に把持される。こ
の状態で、把持部材18をケース24の開口部56から
挿嵌する。ケース24を牽引方向へ引っ張ると、光ケー
ブル82はその自重により動きにくいので、把持部材1
8が楔状内壁22a、22bをスライドする。すると、
把持部材18のケース24への押し込み量に応じてブロ
ック12a、12bの傾斜面16a、16bが楔状内壁
22a、22bに押圧され、ブロック12a、12bの
の間隔Dが狭くなり、光ケーブル82に対する把持力が
大きくなる。把持部材18のスライドは、ブロック12
a、12bの後面42a、42bが係止部材26の前面
74に当接することで停止する。したがって、光ケーブ
ル82の側圧は係止部材26の長さLによって所定の値
に設定される。このようにして、チェーン60を張線器
等に引っ掛けて光ケーブル82を牽引することができ
る。光ケーブル82の把持は連結部材20の作用により
きわめて簡単に行える。また、ケーブル受け溝14a、
14bは、断面が半円状のゴムスリーブからなるので、
光ケーブル82の光ファイバへの圧力を緩衝することが
できる。Next, the operation of the gripping tool 10 will be described. If necessary, the locking member 26 is inserted through the opening 56 of the case 24. The locking member 26 is configured such that the rear surface 70 has the locking surface 66.
In addition, the small inclined surfaces 72a, 72b have wedge-shaped inner walls 22a, 22b.
Contact each other. The blocks 12a and 12b constituting the gripping member 18 are opened by hand against the urging force of the spring 32 of the connecting member 20 (FIG. 4), and the optical cable 82 is inserted into the optical cable receiving grooves 14a and 14b. Blocks 12a, 1
When the hand is released from 2b, the optical cable 82 is gripped between the blocks 12a and 12b by the urging force of the spring 32. In this state, the holding member 18 is inserted through the opening 56 of the case 24. When the case 24 is pulled in the pulling direction, the optical cable 82 is hard to move due to its own weight.
8 slides on the wedge-shaped inner walls 22a, 22b. Then
The inclined surfaces 16a, 16b of the blocks 12a, 12b are pressed by the wedge-shaped inner walls 22a, 22b in accordance with the amount of the gripping member 18 pressed into the case 24, and the distance D between the blocks 12a, 12b is reduced, and the gripping force on the optical cable 82 is reduced. Becomes larger. The sliding of the gripping member 18 is
When the rear surfaces 42a, 42b of the locking members 26 a, 12b come into contact with the front surfaces 74 of the locking members 26, they stop. Therefore, the side pressure of the optical cable 82 is set to a predetermined value by the length L of the locking member 26. In this manner, the optical cable 82 can be pulled by hooking the chain 60 on a cable stretcher or the like. The holding of the optical cable 82 can be performed very easily by the action of the connecting member 20. Also, the cable receiving groove 14a,
14b is made of a rubber sleeve having a semicircular cross section,
The pressure on the optical fiber of the optical cable 82 can be buffered.
【0013】また、径の大きい光ケーブル82を把持す
るには、長さLの大きい係止部材26を用いることによ
り、把持部材18の楔状内壁22a、22bへの押し込
み量を小さくしてブロック12a、12bの間隔Dを大
きくする。同様に、径の小さい光ケーブル82を把持す
るには、長さLの小さい係止部材26を用いる。また、
光ケーブル82の径に合わせて、ケーブル受け溝14
a、14bの径を変えてもよい。In order to grip the optical cable 82 having a large diameter, the locking member 26 having a large length L is used, so that the amount of pushing of the gripping member 18 into the wedge-shaped inner walls 22a, 22b can be reduced, and the blocks 12a, The interval D of 12b is increased. Similarly, to hold the optical cable 82 having a small diameter, the locking member 26 having a small length L is used. Also,
According to the diameter of the optical cable 82, the cable receiving groove 14
The diameters of a and 14b may be changed.
【0014】なお、ブロック12a、12bの傾斜面1
2a、12bは、この実施例で示した平面に限定される
ものではなく、曲面であってもよい。したがって、把持
部材18は、截頭円錐状の楔状外形としてもよい。The inclined surface 1 of the blocks 12a and 12b
2a and 12b are not limited to the planes shown in this embodiment, but may be curved surfaces. Therefore, the gripping member 18 may have a frustoconical wedge-shaped outer shape.
【0015】[0015]
【考案の効果】この考案に係る把持工具によれば、二個
のブロックがバラバラになることがなく簡単に光ケーブ
ルの着脱ができるので、光ケーブルの余長取り作業を能
率よく行うことができる。しかも、係止部材を換えるこ
とにより、光ケーブルの径に応じて光ケーブルの側圧を
所定値に設定でき、余長取り作業時の光ケーブルの損傷
等を防止することができる。According to the gripping tool according to the present invention, the optical cable can be easily attached and detached without breaking the two blocks, so that the extra work of the optical cable can be efficiently performed. In addition, by changing the locking member, the side pressure of the optical cable can be set to a predetermined value according to the diameter of the optical cable, and damage to the optical cable during extra length work can be prevented.
【図1】この考案に係る把持工具の一実施例を示す全体
斜視図。FIG. 1 is an overall perspective view showing an embodiment of a gripping tool according to the present invention.
【図2】この考案に係る把持工具の一実施例を示す分解
斜視図。FIG. 2 is an exploded perspective view showing an embodiment of the gripping tool according to the present invention.
【図3】図1における III−III 線縦断面図。FIG. 3 is a vertical sectional view taken along line III-III in FIG.
【図4】二個のブロックを開いた状態を示す縦断面図。FIG. 4 is a longitudinal sectional view showing a state where two blocks are opened.
【図5】図1における V−V 線要部縦断面図。FIG. 5 is a longitudinal sectional view taken along the line VV in FIG. 1;
【図6】マンホール内に布設された光ケーブルを示す横
断面図。FIG. 6 is a cross-sectional view showing an optical cable laid in a manhole.
10…把持工具 12a、12b…
ブロック 14a、14b…光ケーブル受け溝 16a、16b…
傾斜面 18…把持部材 20…連結部材 22a、22b…楔状内壁 24…ケース 26…係止部材 30…軸 32…ばね10 gripping tools 12a, 12b ...
Blocks 14a, 14b ... optical cable receiving grooves 16a, 16b ...
Inclined surface 18 ... Grip member 20 ... Connecting member 22a, 22b ... Wedge-shaped inner wall 24 ... Case 26 ... Locking member 30 ... Shaft 32 ... Spring
Claims (2)
対向側には光ケーブル受け溝が形成されるとともに各ブ
ロックの外側には傾斜面が形成された楔状外形の把持部
材と、二個の上記ブロックを開閉自在に連結するととも
に二個の上記ブロックを閉方向に付勢する連結部材と、
上記把持部材をスライド自在に挿嵌しその押し込み量に
応じて二個の上記ブロックの間隔が狭くなる楔状内壁が
形成されたケースと、上記楔状内壁に着脱自在に取付け
られ上記把持部材の挿嵌方向へのスライドを止める係止
部材とを備えた光ケーブル牽引用把持工具。1. A wedge-shaped gripping member comprising two blocks, wherein an optical cable receiving groove is formed on the opposite side of each block, and an inclined surface is formed on the outside of each block. A connecting member for connecting the blocks so that they can be opened and closed and for urging the two blocks in the closing direction;
A case in which a wedge-shaped inner wall is formed in which the gripping member is slidably inserted and the distance between the two blocks is reduced in accordance with the amount of pushing, and a wedge-shaped inner wall is detachably attached to the wedge-shaped inner wall, and the fitting of the gripping member is performed. An optical cable tow gripping tool comprising: a locking member for stopping sliding in a direction.
ライド自在に貫通した軸と二個の上記ブロックを閉方向
に付勢するばねとから連結部材が構成された請求項1記
載の光ケーブル牽引用把持工具。2. The optical cable according to claim 1, wherein the connecting member comprises a shaft fixed to one of the two blocks and slidably penetrating the other of the two blocks and a spring for urging the two blocks in the closing direction. Tow gripping tool.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2281592U JP2560577Y2 (en) | 1992-04-10 | 1992-04-10 | Optical cable tow gripping tool |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2281592U JP2560577Y2 (en) | 1992-04-10 | 1992-04-10 | Optical cable tow gripping tool |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0583704U JPH0583704U (en) | 1993-11-12 |
JP2560577Y2 true JP2560577Y2 (en) | 1998-01-26 |
Family
ID=12093190
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2281592U Expired - Lifetime JP2560577Y2 (en) | 1992-04-10 | 1992-04-10 | Optical cable tow gripping tool |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2560577Y2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5253230B2 (en) * | 2009-02-25 | 2013-07-31 | 中国電力株式会社 | Gripping tool for hanging line cutting |
CN115951462B (en) * | 2023-03-13 | 2023-05-23 | 陕西德盟钧网络科技有限公司 | Communication optical cable traction device |
CN117215019B (en) * | 2023-11-07 | 2024-02-27 | 吉林省吉能电力通信有限公司 | Auxiliary traction device for optical cable installation |
-
1992
- 1992-04-10 JP JP2281592U patent/JP2560577Y2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
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JPH0583704U (en) | 1993-11-12 |
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