JPS5941213Y2 - tension clamp - Google Patents

Description

【考案の詳細な説明】 本考案は引張用クランプに関するものである。[Detailed explanation of the idea] The present invention relates to a tension clamp.

ワイヤーロープ、プレハブストランド又は電線ケーフル
等の架線作業において端末以外の位置でそれらの部材を
掴んで引張る必要が生じることがしばしばある。BACKGROUND OF THE INVENTION When working on overhead lines, such as wire ropes, prefabricated strands, or cable cables, it is often necessary to grasp and pull such members at locations other than the ends.

例えば長大吊橋の主ケーブル架設工事に釦いてキャツト
ウオーク上に引出されたプレー・ブストランドを引出ラ
インから所定のラインに移設し、主塔間、主塔とスプレ
ーサドル間でのサグ量を調整しなければならない。For example, during the construction of the main cable of a long suspension bridge, the play strand pulled out on the cat walk is moved from the pull-out line to a predetermined line, and the amount of sag between the main towers and between the main tower and the spray saddle is adjusted. There must be.

従来このような目的で特にワイヤーロープを対象に幾多
の形式のクランプが考案されているが、現場作業に適し
たものはない。Numerous types of clamps have been devised for this purpose, particularly for wire ropes, but none are suitable for field work.

すなわち、被クランプ部材への取付が容易で取扱い重量
が軽く大きな引張力に耐えるものはない。That is, there is nothing that is easy to attach to the member to be clamped, is light in handling weight, and can withstand large tensile forces.

本考案は従来のクランプのこのような欠点を解消し現場
作業に適した引張用クランプを提供しようとするもので
、その要旨とするところは、握索金物に半円形溝及びこ
の半円形溝の両側に貫通孔を形成し、この貫通孔に半円
形溝をまたいでＵボルトを貫通し、更に握索金物に重ね
た下部に多段テーパを有する移動金物の長穴状貫通孔及
び上部に多段テーパを有する座金の貫通孔に前記Ｕポル
トを貫通し、座金の上部でナツトを螺合したことを特徴
とする引張用クランプである。The present invention aims to solve these drawbacks of conventional clamps and provide a tension clamp suitable for field work. A through-hole is formed on both sides, a U-bolt is passed through the through-hole across a semicircular groove, and an elongated through-hole of the movable hardware has a multi-stage taper on the lower part and a multi-stage taper on the upper part, which is overlapped with the gripping hardware. This is a tension clamp characterized in that the U-port is passed through a through hole of a washer having a washer, and a nut is screwed onto the upper part of the washer.

以下面図に基いて本考案の実施例について説明する。Embodiments of the present invention will be described below based on the drawings.

第４図及び第５図に示したように、被クランプ部材であ
る索条１の断面に合致する半円形溝２を下部に有する握
索金物３を形成し、この握索金物３１’ｉ１ｍ適宜間隔
で後述するＵボルト４用の貫通孔５を前記半円形溝２の
両側に位置させて設ける。As shown in FIGS. 4 and 5, a gripping hardware 3 having a semicircular groove 2 in its lower part that matches the cross section of the cable 1, which is a member to be clamped, is formed, and this gripping hardware 31'i1m is Through holes 5 for U bolts 4, which will be described later, are provided at intervals on both sides of the semicircular groove 2.

更に、第８図及び第９図に示したように、上面に多段テ
ーパ６を有しかつ前記握索金物３に設けた貫通孔５に対
応する位置に長穴状の貫通孔７を設けた移動金物８を形
成し、この移動金物８の引張側（多段テーパ６の下傾方
向）延長上の平面にはシャックル用孔９を設ける。Furthermore, as shown in FIGS. 8 and 9, the upper surface has a multi-stage taper 6, and an elongated through hole 7 is provided at a position corresponding to the through hole 5 provided in the gripping hardware 3. A movable hardware 8 is formed, and a shackle hole 9 is provided in a plane extending from the tension side (downward direction of the multi-stage taper 6) of the movable hardware 8.

オた、第１０図及び第１１図に示したように、下面に移
動金物８に形成した多段テーパ６と合致形状の多段テー
パ１０を有し、かつ握索金物３及び移動金物８に設けた
質量孔５，７に対応する位置に貫通孔１１を有する座金
１２を形成し、この座金１２の移動金物８の引張側と反
対側に位置する端部にリプ１３を設ける。Additionally, as shown in FIGS. 10 and 11, the lower surface has a multi-step taper 10 that matches the multi-step taper 6 formed on the movable hardware 8, and is provided on the gripping hardware 3 and the movable hardware 8. A washer 12 having through holes 11 is formed at positions corresponding to the mass holes 5 and 7, and a lip 13 is provided at the end of the washer 12 located on the opposite side to the tension side of the movable metal object 8.

リプ１３は座金１２の移動防止用に設けるもので、握索
金物３の端部に当接するように設ける。The lip 13 is provided to prevent the washer 12 from moving, and is provided so as to come into contact with the end of the gripping hardware 3.

次いで、第１図及び第２図に示したように、握索金物３
の上面に移動金物８を重ね、更に移動金物８の多段テー
パ６上に座金１２を重ねると＼もに、握索金物３の下方
から貫通孔５に、第６図に示したようなＵボルト４を挿
入、順次移動金物８０貫通孔７及び座金１２の貫通孔１
１に挿入貫通して上方からナツト１４により締めつける
。Next, as shown in FIGS. 1 and 2, the gripping hardware 3
When the movable hardware 8 is stacked on the upper surface and the washer 12 is further stacked on the multi-stage taper 6 of the movable hardware 8, a U bolt as shown in FIG. 4, and sequentially move the metal fitting 80 through hole 7 and washer 12 through hole 1
1 and tighten with a nut 14 from above.

以上に釦いてＵボルト４の必要本数、同じく貫通孔５゜
７．１１０数はこのクランプの必要引張力と座金１２の
多段テーパ１０によってＵボルト４に生じる引張力とＵ
ボルト４の断面積、材質から決定する。The required number of U bolts 4 and the number of through holes 5°7.110 are determined by the required tensile force of this clamp, the tensile force generated in the U bolts 4 by the multi-step taper 10 of the washer 12, and the U
Determine from the cross-sectional area and material of the bolt 4.

Ｕボルト４の長さは索条１に取付ける際、座金１２より
突き出る部分にナツト１４及びワッシャー１４′が充分
大る長さであればよい。The length of the U-bolt 4 may be such that the nut 14 and washer 14' are sufficiently large in the portion protruding from the washer 12 when attached to the cable 1.

座金１２と移動金物８に形成した多段テーパ１０，６０
段数はＵボルト４の数と同じとし、多段テーパ１０゜６
は前述したように同テーパとし移動金物８が移動したと
き互いに座金１２と平行な状態を保ち得るようにする。Multi-stage taper 10, 60 formed on washer 12 and moving hardware 8
The number of steps is the same as the number of U bolts 4, and the multi-step taper is 10°6.
As described above, the movable hardware 8 is made to have the same taper so that when it moves, it can maintain a state parallel to the washer 12.

な釦、第３図中１５はシャックル、１６はワイヤーであ
り、第１図、第２図及び第７図中１７は索条１保護用の
当金物、１８は当金物１７に形成したＵボルト４嵌合用
溝部である。In Fig. 3, 15 is a shackle, 16 is a wire, 17 in Figs. 1, 2, and 7 is a metal piece for protecting the cable 1, and 18 is a U bolt formed on the metal piece 17. 4. This is a fitting groove.

この実施例においては以上のように構成したから、円形
断面を有する索条１の長手方向における任意の個所に引
張力を与えたいとき、移動金物８及び座金１２をその上
面に重ねた握索金物３の半円形溝２に索条１を嵌入させ
、第１図及び第２図に示したように、下方から更にＵボ
ルト４で索条１を抱えると＼もＫＵボルト４を貫通孔５
、７ 。Since this embodiment is configured as described above, when it is desired to apply a tensile force to an arbitrary point in the longitudinal direction of the cable 1 having a circular cross section, a gripping hardware with the movable hardware 8 and the washer 12 stacked on the upper surface thereof can be used. The cable 1 is inserted into the semicircular groove 2 of 3, and as shown in FIGS.
, 7.

１１に貫通させ、座金１２の上面でナツト１４により締
め付ける。11 and tightened with a nut 14 on the upper surface of the washer 12.

この場合において索条１とＵボルト４の間に当金物１７
を介在させれば索条１との接触においてＵボルト１のみ
の場合より当金物１７を介在させた場合の方が接触面積
が広いため、力が一点に集中せず索条１に損傷を与える
おそれが少ない。In this case, a metal object 17 is inserted between the cable 1 and the U-bolt 4.
If there is a contact area between the U-bolt 1 and the U-bolt 1, the contact area will be wider when the U-bolt 1 is involved, so the force will not be concentrated in one point and cause damage to the cable 1. There is little risk.

かくて、以上のようにして索条１に本クランプを取付け
、第３図に示したように移動金物８のシャックル用孔９
にシャックル１５を連結し、シャックル１５にワイヤー
１６に結びつけ、ワイヤー１６を引張るとき移動金物８
と座金１２の多段テーパ６．１０の間で滑りを生じ（移
動金物８に設けた貫通孔Ｉは長孔であるためＵボルト４
を貫通しても移動の余地がある）くさび効果が発生する
。Thus, the main clamp is attached to the cable 1 as described above, and the shackle hole 9 of the movable hardware 8 is inserted as shown in FIG.
A shackle 15 is connected to the shackle 15, and the wire 16 is tied to the shackle 15, so that when the wire 16 is pulled, the moving hardware 8
and the multi-stage taper 6.10 of the washer 12 (because the through hole I provided in the moving hardware 8 is a long hole, the U bolt 4
(there is still room for movement even if it penetrates) a wedge effect occurs.

このくさび効果が発生すると、座金１２が押しあげられ
るからＵボルト４に引張力が生じ握索金物３０半円形溝
２とＵボルト４の間の索条１が締付けられこの摩擦力で
索条１にクランプ効果を与え得るものである。When this wedge effect occurs, the washer 12 is pushed up, creating a tensile force on the U bolt 4, which tightens the cable 1 between the semicircular groove 2 of the gripping hardware 30 and the U bolt 4, and this frictional force causes the cable 1 to tighten. This can give a clamping effect to the

この場合、移動金物８と座金１２の多段テーパ６．１０
及び移動金物８と握索金物３の接触面に潤滑剤を塗付し
ておくことによって引張力に対するクランプ力の倍率、
すなわちクランプとしての安全率を向上させることがで
きる。In this case, the multi-stage taper 6.10 of the moving hardware 8 and washer 12
By applying lubricant to the contact surfaces of the movable hardware 8 and the gripping hardware 3, the magnification of the clamping force relative to the tensile force can be increased.
In other words, the safety factor as a clamp can be improved.

本クランプの取外しはナツト１４をＵボルト４から外し
Ｕボルト４を座金１２、移動金物８及び握索金物３から
抜き取ることによって極めて容易にできる。This clamp can be removed very easily by removing the nut 14 from the U-bolt 4 and extracting the U-bolt 4 from the washer 12, movable hardware 8, and gripping hardware 3.

以上のように本考案は、取扱い重量が軽く、取付、取外
しが極めて容易であり、Ｕボルトには若干の締付トルク
を与えるだけで引張に比例したクランプ力を得ることが
でき、ボルトの締付力不足によるクランプ力の不足の釦
それがなく安全であり、それほどの揚重設備がなくても
用いることのできる現場作業に適したクランプである。As described above, the present invention has a light handling weight, is extremely easy to install and remove, and can obtain a clamping force proportional to the tension by simply applying a small amount of tightening torque to the U-bolt. This clamp is safe because there is no problem of insufficient clamping force due to insufficient clamping force, and it is suitable for field work as it can be used without much lifting equipment.

【図面の簡単な説明】[Brief explanation of drawings]

図面は本考案の一実施例を示すもので、第１図は本考案
の正面図、第２図は同上のＡ−Ａ線断面図、第３図は移
動金物にシャックルを連結した状態の一部切欠斜視図、
第４図は握索金物の正面図、第５図は同上の右側面図、
第６図はＵボルトの正面図、第７図イは当金物の平面図
、口は当金物の正面図、第８図は移動金物の平面図、第
９図は同上の正面図、第１０図は座金の正面図、第１１
図は同上の右側面図である。 ２は半円形溝、３は握索金物、４はＵボルト、５．７．
１１は貫通孔、６，１０は多段テーパ、８は移動金物、
１２は座金。The drawings show one embodiment of the present invention; Fig. 1 is a front view of the invention, Fig. 2 is a sectional view taken along the line A-A of the same, and Fig. 3 is a state in which the shackle is connected to the movable hardware. Partial cutaway perspective view,
Figure 4 is a front view of the gripping hardware, Figure 5 is a right side view of the same as above,
Figure 6 is a front view of the U-bolt, Figure 7 A is a plan view of the stopper, the mouth is a front view of the stopper, Figure 8 is a plan view of the moving hardware, Figure 9 is a front view of the same, and Figure 10 is a front view of the U-bolt. The figure is a front view of the washer, No. 11.
The figure is a right side view of the same as above. 2 is a semicircular groove, 3 is a gripping hardware, 4 is a U bolt, 5.7.
11 is a through hole, 6 and 10 are multi-stage tapers, 8 is a movable hardware,
12 is a washer.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 握索金物に半円形溝及びこの半円形溝の両側に貫通孔を
形成し、この貫通孔に半円形溝を捷たいでＵボルトを貫
通し、更に握索金物に重ねた下部に多段テーパを有する
移動金物の長穴状貫通孔及び上部に多段テーパを有する
座金の貫通孔に前記Ｕポルトを貫通し、座金の上部でナ
ツトを螺合したことを特徴とする、引張用クランプ。A semicircular groove and a through hole are formed on both sides of the semicircular groove in the gripping hardware, a U-bolt is passed through the through hole by cutting the semicircular groove, and a multi-step taper is formed in the lower part of the gripping hardware. A tension clamp, characterized in that the U-port is passed through an elongated through-hole of a movable metal object and a through-hole of a washer having a multi-stage taper at the upper part, and a nut is screwed onto the upper part of the washer.