JP2012255472A - Turnbuckle accessory fitting and turnbuckle with tension sensor using the same - Google Patents

Turnbuckle accessory fitting and turnbuckle with tension sensor using the same Download PDF

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JP2012255472A
JP2012255472A JP2011128022A JP2011128022A JP2012255472A JP 2012255472 A JP2012255472 A JP 2012255472A JP 2011128022 A JP2011128022 A JP 2011128022A JP 2011128022 A JP2011128022 A JP 2011128022A JP 2012255472 A JP2012255472 A JP 2012255472A
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turnbuckle
tension
slope
female screw
tension sensor
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JP5725982B2 (en
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Kei Higuchi
佳意 樋口
Naoto Iwasa
直人 岩佐
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Nippon Steel Metal Products Co Ltd
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Nippon Steel and Sumikin Metal Products Co Ltd
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Priority to PCT/JP2012/064571 priority patent/WO2012169534A1/en
Priority to TW101120819A priority patent/TWI539099B/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G11/00—Means for fastening cables or ropes to one another or to other objects; Caps or sleeves for fixing on cables or ropes
    • F16G11/12—Connections or attachments, e.g. turnbuckles, adapted for straining of cables, ropes, or wire
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F7/00—Devices affording protection against snow, sand drifts, side-wind effects, snowslides, avalanches or falling rocks; Anti-dazzle arrangements ; Sight-screens for roads, e.g. to mask accident site
    • E01F7/04—Devices affording protection against snowslides, avalanches or falling rocks, e.g. avalanche preventing structures, galleries
    • E01F7/045—Devices specially adapted for protecting against falling rocks, e.g. galleries, nets, rock traps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/06—Turnbuckles

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Abstract

PROBLEM TO BE SOLVED: To easily obtain an inexpensive turnbuckle with a tension sensor.SOLUTION: A turnbuckle 2 is used comprising: a fastening central rotary part 6; and a first fastening bolt 11 and a second fastening bolt 12 screwed respectively to female screw parts 4, 5, which are screws inverse to each other, on both sides of the fastening central rotary part 6. A turnbuckle accessory fitting 1 has a rod-like shape, has a male screw part 16 on one side thereof and has a female screw part 15 on the other side to connect the fastening central rotary part 6 to one fastening bolt of the two fastening bolts 11, 12. For example, the male screw part 16 of the accessory fitting 1 is screwed to one female screw part 4 of the fastening central rotary part 6, and a male screw part 7 of the first fastening bolt 11 is screwed to the female screw part 15 of the accessory fitting 1. A concavity part 18 is formed on an outer circumferential surface of the accessory fitting 1, a strain gauge 19 is stuck to the concavity part 18, and a protection member 20 is provided for protecting the strain gauge 19. The turnbuckle 2 for general use can be inexpensively changed to a turnbuckle 3 with a tension sensor.

Description

この発明は、ワイヤロープなどの線状体に張力を付与するためのターンバックルに取り付けられて前記線状体の張力を測定可能な張力センサ付きターンバックルを構成するためのターンバックル付属金具及びそれを用いた張力センサ付きターンバックルに関する。   The present invention relates to a turnbuckle attachment fitting for constituting a turnbuckle with a tension sensor attached to a turnbuckle for applying tension to a linear body such as a wire rope and capable of measuring the tension of the linear body, and the same The present invention relates to a turnbuckle with a tension sensor that uses the above.

例えばワイヤロープ等の線状体に張力を付与する要がある場合、ターンバックルがしばしば用いられる。そして、その線状体の張力を測定する必要がある場合、ターンバックルに歪センサを取り付けることも行われている。
例えば特許文献１のターンバックルは、架空電線の延線や緊線時などに用いることを想定しているものであるが、特許文献１の第１図、第２図に示されたターンバックルは、かなり複雑な構成であり、駆動軸２２を回すことにより、両端側の雄ネジ部６が互いに逆ねじである回転軸５を回し、この回転軸５と螺合する、スライドナット回り止めスリーブ１８で回り止めされたスライドナット９をスライドさせて、張力調整を行う構成である。このスライドナット９に取り付けられたクレビスジョイント金具１２に歪ゲージ２７が貼り付けられている。歪ゲージ２７は歪ゲージ式張力検出器４のセンサ部分である。
また、特許文献１の第４図に示されたターンバックルは、中央の回転部（回転スリーブ３３）の両側の伸長する部分（フックボルト３４）に歪ゲージ２７（歪ゲージ式張力検出器４の歪ゲージ）を直接貼り付けたものである。 For example, when it is necessary to apply tension to a linear body such as a wire rope, a turnbuckle is often used. And when it is necessary to measure the tension | tensile_strength of the linear body, attaching the strain sensor to the turnbuckle is also performed.
For example, the turnbuckle of Patent Document 1 is supposed to be used when an overhead wire is extended or connected, but the turnbuckle shown in FIGS. 1 and 2 of Patent Document 1 is The slide nut detent sleeve 18 has a rather complicated structure, and rotates the rotating shaft 5 in which the male screw portions 6 on both end sides are opposite to each other by rotating the drive shaft 22, and is screwed with the rotating shaft 5. The slide nut 9 that has been prevented from rotating is slid to adjust the tension. A strain gauge 27 is affixed to the clevis joint fitting 12 attached to the slide nut 9. The strain gauge 27 is a sensor portion of the strain gauge type tension detector 4.
Further, in the turnbuckle shown in FIG. 4 of Patent Document 1, the strain gauge 27 (the strain gauge type tension detector 4 of the strain gauge type tension detector 4) is provided on the extending portion (hook bolt 34) on both sides of the central rotating portion (rotating sleeve 33). A strain gauge) is directly attached.

特許文献２のターンバックル（張力可変装置）は、やはり架空電線の延線や緊線時などに用いることを想定しているものであるが、ターンバックルを構成する回転筒（回転部）５の両側に螺合する接続部材（伸長する部分）１、２の一方の接続部材１の軸部１２に直接、歪ゲージ又は磁歪式の張力センサ６を設けた構成である。   The turnbuckle (tension variable device) of Patent Document 2 is also assumed to be used when an overhead electric wire is extended or connected, but the rotating barrel (rotating portion) 5 constituting the turnbuckle is used. In this configuration, a strain gauge or a magnetostrictive tension sensor 6 is provided directly on the shaft portion 12 of one connection member 1 of the connection members (extending portions) 1 and 2 that are screwed to both sides.

特公平３−３１９５４JP 3-31954 特開平６−３２３３６９JP-A-6-323369

上記従来のターンバックルはいずれも、ターンバックル自体に張力センサを内蔵したものである。
なお、一般的なターンバックルでは、特許文献１の第４図のものや特許文献２のものと同様に、中央の回転部がその両側に雌ネジ部を有し、回転部の両側に設ける伸長する部分が雄ネジとなっている構成であるのに対して、特許文献１の第１図、第２図のターンバックルは、それとは逆に、中央の回転部が両側に雄ネジ部を有し、回転部の両側に設ける伸長する部分（スライドナット９）が雌ネジとなっている点で異なるが、ターンバックルにおける回転部の両側の伸長する部分に直接張力センサを取り付ける、という点では、特許文献１の第４図のものや特許文献２第４図のものと同様である。 Any of the conventional turnbuckles described above incorporates a tension sensor in the turnbuckle itself.
Incidentally, in a general turnbuckle, like the ones in FIG. 4 of Patent Document 1 and Patent Document 2, the central rotating part has female threaded parts on both sides thereof, and the extension provided on both sides of the rotating part. In contrast, the turnbuckle shown in FIGS. 1 and 2 of Patent Document 1 has a male threaded portion on both sides. However, it differs in that the extending parts (slide nut 9) provided on both sides of the rotating part are female threads, but in that the tension sensor is directly attached to the extending part on both sides of the rotating part in the turnbuckle, This is the same as that of FIG. 4 of Patent Document 1 and FIG. 4 of Patent Document 2.

上記従来の張力センサ付きのターンバックルはいずれも、ターンバックル自体に直接張力センサを取り付ける構成なので、ターンバックル自体を特別な構造とする必要がある。したがって、コスト的に高いものとなる。特に特許文献１の第１図、第２図のものは非常に複雑で高価なものとなる。
特許文献１や特許文献２のように、張力センサ付きのターンバックルを例えば架空電線の延線時や緊線時に使用するなどのように、線状体設置時にのみ使用する用途であれば、特別構造とすることにコスト的な面での問題はないが、例えば、斜面安定化工法などにおいて敷設した多くのワイヤロープの張力を維持管理するなどの恒久的な用途に用いる場合には、ターンバックル自体に直接張力センサを取り付ける構造では、コスト高になって採用できないなどの問題がある。 Any of the above conventional turnbuckles with a tension sensor has a structure in which the tension sensor is directly attached to the turnbuckle itself. Therefore, the turnbuckle itself needs to have a special structure. Therefore, the cost is high. In particular, those shown in FIGS. 1 and 2 of Patent Document 1 are very complicated and expensive.
If the application is to be used only when installing a linear object, such as when using a turnbuckle with a tension sensor at the time of extending or tightening an overhead wire, as in Patent Document 1 or Patent Document 2, it is special. Although there is no problem in terms of cost in making the structure, for example, when it is used for permanent applications such as maintaining the tension of many wire ropes laid in the slope stabilization method, turnbuckles The structure in which the tension sensor is directly attached to itself has a problem that it cannot be adopted due to high cost.

本発明は上記事情に鑑みてなされたもので、安価な張力センサ付きのターンバックルを容易に得ることができるターンバックル付属金具及びそれを用いた張力センサ付きターンバックルを提供可能にすることを目的とする。   The present invention has been made in view of the above circumstances, and an object of the present invention is to make it possible to provide a turnbuckle accessory that can easily obtain an inexpensive turnbuckle with a tension sensor and a turnbuckle with a tension sensor using the same. And

上記課題を解決する請求項１の発明は、ターンバックルに連結される線状体の張力を測定する張力センサを備えたターンバックル付属金具であって、
前記ターンバックル付属金具は、一端に雄ネジ部、他端に雌ネジ部を有する棒状であり、前記金具の外周面に凹部が形成されて、前記凹部に歪ゲージを取り付けるとともに、この歪ゲージを保護する保護部材を設けられており、
前記金具の雄ネジ部は、ターンバックルの緊結用中央回転部に設けられた雌ネジ部と連結可能にネジ切りされ、
前記金具の雌ネジ部は、線状体と連結する線状体連結部を備える締結ボルトに設けられた雄ネジ部と連結可能にネジ切りされていることを特徴とする。 The invention of claim 1 which solves the above-mentioned problem is a turnbuckle accessory fitting provided with a tension sensor for measuring the tension of a linear body connected to the turnbuckle,
The turnbuckle-attached metal fitting has a rod shape having a male screw portion at one end and a female screw portion at the other end, and a concave portion is formed on the outer peripheral surface of the metal fitting, and a strain gauge is attached to the concave portion. A protective member to protect is provided,
The male thread part of the metal fitting is threaded so as to be connectable with the female thread part provided in the central rotation part for binding of the turnbuckle,
The female screw portion of the metal fitting is threaded so as to be connectable with a male screw portion provided on a fastening bolt including a linear body connecting portion that is connected to the linear body.

請求項２は、請求項１のターンバックル付属金具において、対象とする前記ターンバックルが汎用のターンバックルであり、前記汎用のターンバックルとは、両端部に互いに逆ネジである雌ネジ部を有する緊結用中央回転部と、前記両端部の雌ネジ部へそれぞれ連結可能な雄ネジ部を一端側に有するとともに他端側に線状体連結部を有する第１及び第２の締結ボルトと、からなるターンバックルであることを特徴とする。   According to a second aspect of the present invention, in the turnbuckle accessory of the first aspect, the target turnbuckle is a general-purpose turnbuckle, and the general-purpose turnbuckle has female screw portions that are reverse screws at both ends. A first rotation bolt having a central rotation portion for binding, a male screw portion connectable to the female screw portions at both ends on one end side, and a linear body connecting portion on the other end side; It is characterized by being a turnbuckle.

請求項３は、請求項１又は２のターンバックル付属金具において、当該ターンバックル付属金具を備えた張力センサ付きターンバックルが、恒久的に線状体の張力を測定可能なように、歪みゲージを取り付けた張力センサ部又は／及び保護部材に防水処理を施したものであることを特徴とする。   A third aspect of the present invention relates to the turnbuckle attachment according to claim 1 or 2, wherein the turnbuckle with a tension sensor provided with the turnbuckle attachment has a strain gauge so that the tension of the linear body can be measured permanently. The attached tension sensor part or / and the protection member are waterproofed.

請求項４は、請求項１〜３のいずれか１項に記載のターンバックル付属金具において、
対象とする前記ターンバックルが、斜面に配置した多数のアンカーの頭部にそれぞれ支圧板を取り付けて斜面安定化を図る斜面安定化工法において、一部のアンカー間を緊張力を付与しない態様でロープで連結する場合における前記ロープに介在させるターンバックルであることを特徴とする。 Claim 4 is the turnbuckle accessory fitting according to any one of claims 1 to 3,
In the slope stabilization method in which the target turnbuckle attaches a bearing plate to the heads of a number of anchors arranged on the slope to stabilize the slope, the rope in a manner that does not give tension between some anchors It is a turnbuckle interposed in the said rope in the case of connecting by.

請求項５は、請求項１〜３のいずれか１項に記載のターンバックル付属金具において、
対象とする前記ターンバックルが、斜面に配置した多数のアンカーの頭部にそれぞれ支圧板を取り付けるとともに各アンカー頭部間をロープで連結しかつ緊張力を付与して斜面安定化を図る斜面安定化工法において、アンカー間を連結する前記ロープに介在させるターンバックルであることを特徴とする。 Claim 5 is the turnbuckle accessory fitting according to any one of claims 1 to 3,
The target turnbuckle is a slope stabilization work that attaches pressure bearing plates to the heads of a number of anchors arranged on the slope, connects the anchor heads with ropes, and applies tension to stabilize the slope. The method is characterized in that it is a turnbuckle interposed between the ropes connecting the anchors.

請求項６は、請求項１〜５のいずれか１項に記載のターンバックル付属金具において、
前記凹部が周溝であることを特徴とする。 Claim 6 is the turnbuckle accessory fitting according to any one of claims 1 to 5,
The concave portion is a circumferential groove.

請求項７は、請求項１〜６のいずれか１項に記載のターンバックル付属金具において、
前記凹部を前記雌ネジ部の外周面に形成したことを特徴とする。 Claim 7 is the turnbuckle attachment fitting according to any one of claims 1 to 6,
The concave portion is formed on the outer peripheral surface of the female screw portion.

請求項８の発明は、両端部に互いに逆ネジである雌ネジ部を有する緊結用中央回転部と、前記両端部の雌ネジ部へそれぞれ連結可能な雄ネジ部を一端側に有するとともに他端側に線状体連結部を有する第１及び第２の締結ボルトとからなるターンバックルに請求項１のターンバックル付属金具を取り付けてなる張力センサ付きターンバックルであって、
前記緊結用中央回転部の一端側に第１又は第２の締結ボルトの一方の締結ボルトの雄ネジ部が連結され、緊結用中央回転部の他端側に前記ターンバックル付属金具の雄ネジ部が連結され、このターンバックル付属金具の雌ネジ部に他方の締結ボルトの雄ネジ部が連結されてなることを特徴とする。 The invention according to claim 8 is provided with a central rotating portion for fastening having female screw portions that are reverse screws at both ends, and a male screw portion that can be connected to the female screw portions at both ends at one end and the other end. A turnbuckle with a tension sensor formed by attaching the turnbuckle accessory of claim 1 to a turnbuckle comprising first and second fastening bolts having a linear body connecting portion on the side,
A male screw portion of one fastening bolt of the first or second fastening bolt is connected to one end side of the tightening central rotating portion, and a male screw portion of the turnbuckle accessory fitting is connected to the other end side of the tightening central rotating portion. And the male screw portion of the other fastening bolt is connected to the female screw portion of the turnbuckle attachment fitting.

本発明のターンバックル付属金具は、その雄ネジ部を、ターンバックルの緊結用中央回転部の第１又は第２の締結ボルトの一方の締結ボルトが連結されるべき雌ネジ部に連結し、ターンバックル付属金具の雌ネジ部に前記一方の締結ボルトの雄ネジ部を連結することで、汎用のターンバックルにおける緊結用中央回転部と一方の締結ボルトとの間に取り付けることができる。
そして、金具外周面に歪ゲージを貼り付けているので、汎用のターンバックルに本発明のターンバックル付属金具を取り付けるだけで、線状体の張力を測定可能な張力センサ付きターンバックルとすることができる。したがって、市販のターンバックルから容易に安価な張力センサ付きターンバックルを得ることができる。市販のターンバックルを直ちに張力センサ付きターンバックルに変えることができる本発明のターンバックル付属金具の利用価値は高い。 In the turnbuckle accessory of the present invention, the male screw portion is connected to the female screw portion to which one of the first or second fastening bolts of the central rotating portion for fastening of the turnbuckle is to be connected. By connecting the male threaded portion of the one fastening bolt to the female threaded portion of the buckle attachment fitting, it can be attached between the fastening central rotating portion and the one fastening bolt in the general-purpose turnbuckle.
And since the strain gauge is affixed to the outer peripheral surface of the metal fitting, it is possible to obtain a turnbuckle with a tension sensor that can measure the tension of the linear body by simply attaching the turnbuckle accessory fitting of the present invention to a general-purpose turnbuckle. it can. Therefore, an inexpensive turnbuckle with a tension sensor can be easily obtained from a commercially available turnbuckle. The utility value of the turnbuckle accessory of the present invention that can immediately change a commercially available turnbuckle to a turnbuckle with a tension sensor is high.

請求項３によれば、歪みゲージを取り付けた張力センサ部又は／及び保護部材に防水処理を施しているので、恒久的に線状体の張力を測定する必要のある場合に適用できるが、そのような場合は安価であることが特に要求されるので、安価な張力センサ付きターンバックルを得ることができるという本発明の効果が強く発揮される。   According to the third aspect, since the waterproof processing is applied to the tension sensor portion and / or the protection member to which the strain gauge is attached, it can be applied when it is necessary to permanently measure the tension of the linear body. In such a case, since it is particularly required to be inexpensive, the effect of the present invention that an inexpensive turnbuckle with a tension sensor can be obtained is strongly exhibited.

請求項４や請求項５のターンバックル付属金具は、対象とする前記ターンバックルが斜面安定化工法におけるロープに介在させるターンバックルであるが、実際上斜面に多数をかつ恒久的に配置することになるので、安価であることが必須であり、本発明のターンバックル付属金具が有効に活用される。
また、現場の状況に応じて使用するターンバックルの仕様が異なることは通常であるが、ターンバックル自体に歪ゲージを取り付ける構造の専用の張力センサ付きターンバックルでは特殊なため異なる仕様ごとに製造するのは時間がかかり、そのような専用部品の調達が困難となる事態が考えられる。しかし、構造の簡単なターンバックル付属金具のみを例えば雄ネジや雌ネジの寸法を変えて準備（そのような部品の準備は容易である）しておけば、市販の様々な仕様のターンバックルを利用して直ちに張力センサ付きターンバックルにすることができるので、部品の調達が困難となる事態が生じることは少ない。 Although the turnbuckle attachment metal fitting of Claim 4 and Claim 5 is a turnbuckle which the turnbuckle made into object interposes in the rope in slope stabilization construction method, in fact, many are arranged permanently on a slope. Therefore, it is essential to be inexpensive, and the turnbuckle accessory of the present invention is effectively used.
In addition, it is normal that the specifications of the turnbuckle to be used differ depending on the situation in the field, but the turnbuckle with a dedicated tension sensor with a structure that attaches a strain gauge to the turnbuckle itself is special and manufactured for each different specification This takes time, and it may be difficult to procure such dedicated parts. However, if you prepare only turnbuckle fittings with simple structure, for example, by changing the dimensions of male and female screws (preparation of such parts is easy), you can install turnbuckles with various specifications on the market. Since the turnbuckle with a tension sensor can be used immediately after use, there are few cases in which it becomes difficult to procure parts.

請求項６のように、歪ゲージを貼り付ける凹部が周溝であれば、その歪ゲージの出力はターンバックル付属金具に作用する荷重を正確に反映し易い。また、歪ゲージを保護する保護部材を、例えば筒状あるいは二つ割り筒状とするなどして、脱落しにくい態様で設けることが容易になる。   If the concave portion to which the strain gauge is attached is a circumferential groove, the output of the strain gauge is likely to accurately reflect the load acting on the turnbuckle accessory. In addition, it becomes easy to provide a protective member that protects the strain gauge in a form that is difficult to drop off, for example, in a cylindrical shape or a split cylinder shape.

請求項７によれば、凹部をターンバックル付属金具の雌ネジ部の外周面に形成したので、歪ゲージ配置部分が緊結用中央回転部と干渉する場合を考慮する必要がなく、適切である。   According to the seventh aspect, since the concave portion is formed on the outer peripheral surface of the female screw portion of the turnbuckle attachment fitting, it is not necessary to consider the case where the strain gauge arrangement portion interferes with the central rotation portion for binding, which is appropriate.

請求項８の発明の張力センサ付きターンバックルは、ターンバックル付属金具を用意しておくだけで、上記の通り安価に製作することができかつ容易に多数個を調達することができるので、恒久的な使用をする場合あるいは多数設ける必要がある場合に、極めて有効である。   The turnbuckle with a tension sensor according to the invention of claim 8 can be manufactured inexpensively as described above and can be procured easily by simply preparing a turnbuckle accessory. This is extremely effective when a large number of uses are required or when it is necessary to provide a large number.

本発明の一実施例を示すもので、ターンバックル付属金具及びそれを取り付けた張力センサ付きターンバックルの斜視図である。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a turnbuckle attachment fitting and a turnbuckle with a tension sensor to which the turnbuckle attachment bracket is attached, showing an embodiment of the present invention. 図１の張力センサ付きターンバックルの平面図である。It is a top view of the turnbuckle with a tension sensor of FIG. 図２の分解図である。FIG. 3 is an exploded view of FIG. 2. 図２のＡ−Ａ断面図である。It is AA sectional drawing of FIG. 図１の張力センサ付きターンバックルにおけるターンバックル付属金具とこれに取り付けられた一方の締結ボルトのみを示した斜視図である。It is the perspective view which showed only the turnbuckle attachment metal fitting and one fastening bolt attached to this in the turnbuckle with a tension sensor of FIG. 図５の平面図である。FIG. 6 is a plan view of FIG. 5. 図６のＢ−Ｂ断面図である。It is BB sectional drawing of FIG. 図１の張力センサ付きターンバックルを、斜面安定化工法においてワイヤロープに緊張力を付与するターンバックルとして用いた場合を説明するもので、（イ）は斜面安定化工法を施工した斜面の平面図、（ロ）は（イ）のＣ−Ｃ断面図である。Fig. 1 illustrates the case where the turnbuckle with a tension sensor is used as a turnbuckle that applies tension to the wire rope in the slope stabilization method. (A) is a plan view of the slope where the slope stabilization method has been applied. (B) is a CC cross-sectional view of (b). 図８における１箇所のアンカー部分についての詳細構造を示すもので、（イ）は平面図（（ロ）のＤ−Ｄ断面で見た平面図）、（ロ）は縦断面図である。The detailed structure about one anchor part in FIG. 8 is shown, (A) is a top view (plan view seen in the DD cross section of (B)), (B) is a longitudinal cross-sectional view. 図１の張力センサ付きターンバックルを、他の斜面安定化工法において、緊張力を付与しないワイヤロープに取り付けるターンバックルとして用いた場合を説明するもので、斜面安定化工法を施工した斜面の平面図であり、（イ）及び（ロ）はそれぞれアンカー、ワイヤロープ及びターンバックルの配置のパターンが異なる場合を示す。The turnbuckle with a tension sensor in Fig. 1 is used to explain the case where it is used as a turnbuckle attached to a wire rope that does not give tension in other slope stabilization methods. (B) and (b) show cases where the arrangement patterns of the anchor, the wire rope, and the turnbuckle are different. 本発明のターンバックル付属金具を装着するターンバックルが枠式ターンバックルである場合の実施例を示す図である。It is a figure which shows the Example in case the turnbuckle which mounts the turnbuckle attachment metal fittings of this invention is a frame type turnbuckle.

以下、本発明を実施したターンバックル付属金具及びそれを用いた張力センサ付きターンバックルについて、図面を参照して説明する。   Hereinafter, a turnbuckle accessory fitting and a turnbuckle with a tension sensor using the same according to the present invention will be described with reference to the drawings.

図１は本発明のターンバックル付属金具１及びそれを用いた張力センサ付きターンバックル３の斜視図、図２は図１の張力センサ付きターンバックル３の平面図、図３は図２の分解図、図４は図２のＡ−Ａ断面図である。
この張力センサ付きターンバックル３は、ターンバックル２に本発明の一実施例のターンバックル付属金具１を取り付けた構成である。
ターンバックル２は、両端部に互いに逆ネジである雌ネジ部４、５を有する緊結用中央回転部６と、その一方の端部の雌ネジ部（右雌ネジ部）４に螺合可能な雄ネジ部（右雄ネジ部）７を一端側に有し他端側にリング状の線状体連結部９を有するアイボルトである第１の締結ボルト１１と、緊結用中央回転部６の他方の端部の雌ネジ部（左雌ネジ部）５に螺合可能な雄ネジ部（左雄ネジ部）８を一端側に有し他端側にリング状の線状体連結部１０を有するアイボルトである第２の締結ボルト１２とを備えた構成である。実施例のターンバックル２は汎用品である。但し、第１の締結ボルト１１は雄ネジ部７を短く切断している。
前記緊結用中央回転部６は、全体として概ね円筒状をなし、中央部の外面の四方に平端部６ａを有して断面が四角形をなす回転駆動部６ｂを備えており、この回転駆動部６ｂと両端部の雌ネジ部４、５の部分を除く部分の内径は、若干大径になっている。なお、ここで雌ネジ部４、５という場合、ネジ孔を指すとともにネジ孔のある筒状部分をも指す。 FIG. 1 is a perspective view of a turnbuckle accessory 1 of the present invention and a turnbuckle 3 with a tension sensor using the same, FIG. 2 is a plan view of the turnbuckle 3 with a tension sensor of FIG. 1, and FIG. 3 is an exploded view of FIG. 4 is a cross-sectional view taken along the line AA of FIG.
This turnbuckle 3 with a tension sensor has a structure in which a turnbuckle accessory 1 according to an embodiment of the present invention is attached to a turnbuckle 2.
The turnbuckle 2 can be screwed into a fastening central rotating portion 6 having female screw portions 4 and 5 that are reverse screws at both ends, and a female screw portion (right female screw portion) 4 at one end thereof. A first fastening bolt 11 which is an eyebolt having a male screw portion (right male screw portion) 7 on one end side and a ring-shaped linear body connecting portion 9 on the other end side, and the other of the central rotating portion 6 for fastening. A male threaded portion (left male threaded portion) 8 that can be screwed into a female threaded portion (left female threaded portion) 5 at one end, and a ring-shaped linear body connecting portion 10 at the other end. The second fastening bolt 12 is an eyebolt. The turnbuckle 2 of the embodiment is a general-purpose product. However, the first fastening bolt 11 cuts the male screw portion 7 short.
The central rotation portion 6 for binding is generally cylindrical in shape, and includes a rotation drive portion 6b having a flat end 6a on all four sides of the outer surface of the center portion and having a square cross section, and this rotation drive portion 6b. The inner diameters of the portions excluding the female screw portions 4 and 5 at both ends are slightly larger. Here, the female screw portions 4 and 5 indicate a screw hole and a cylindrical portion having a screw hole.

図５〜図７は前記張力センサ付きターンバックル３におけるターンバックル付属金具１と第１の締結ボルト１１とのみを示したもので、図５は斜視図、図６は平面図、図７は図６のＢ−Ｂ断面図である。
これらの図に示すように、このターンバックル付属金具１は、ターンバックル２の第１の締結ボルト１１の雄ネジ部７に螺合する雌ネジ部１５を一端側に有し、前記緊結用中央回転部６における前記第１の締結ボルト１１側の雌ネジ部４に螺合する雄ネジ部１６を他端側に有する棒状の金具本体１７を有する。この金具本体１７の前記雌ネジ部１５は外径が大となっており、この大径の雌ネジ部１５の外周面に図示例では周溝である凹部１８を形成し、前記凹部１８に歪ゲージ１９を貼り付けるとともに、この歪ゲージ１９を保護する保護部材２０を設けている。歪ゲージ１９を貼り付けた凹部１８の部分を張力センサ部２１と呼ぶ。なお、ここで雌ネジ部１５という場合、ネジ孔を指すとともにネジ孔のある筒状部分をも指す。 5 to 7 show only the turnbuckle attachment 1 and the first fastening bolt 11 in the turnbuckle 3 with a tension sensor. FIG. 5 is a perspective view, FIG. 6 is a plan view, and FIG. 6 is a cross-sectional view taken along line BB in FIG.
As shown in these drawings, the turnbuckle attachment 1 has a female screw portion 15 on one end side that is screwed to the male screw portion 7 of the first fastening bolt 11 of the turnbuckle 2, and the tightening center The rotating part 6 has a rod-shaped metal fitting body 17 having a male screw part 16 screwed to the female screw part 4 on the first fastening bolt 11 side on the other end side. The female screw portion 15 of the metal fitting body 17 has a large outer diameter, and a concave portion 18 which is a circumferential groove in the illustrated example is formed on the outer peripheral surface of the large diameter female screw portion 15, and the concave portion 18 is distorted. While attaching the gauge 19, the protection member 20 which protects this strain gauge 19 is provided. A portion of the concave portion 18 to which the strain gauge 19 is attached is referred to as a tension sensor portion 21. Here, the female screw portion 15 indicates a screw hole and also a cylindrical portion having a screw hole.

図示例の保護部材２０は、外部からの衝撃に対し歪みゲージ１９を保護するために使用し、周溝である凹部１８の部分を含めて雌ネジ部１５の外周に被せた円筒状の金属製又は樹脂製のカバーであり、ビス２２で雌ネジ部１５の外周に固定している。この場合、凹部１８に錆止めのオイルないしグリスを充填することができる。
歪ゲージ１９を保護する保護部材としては、実施例のような、周溝である凹部１８を含めた雌ネジ部１５の外周の広い範囲に被せた円筒状の保護部材２０に限らず、２つの半円筒体を合せた二つ割円筒状の保護部材、あるいは、凹部１８の部分のみに被せた円筒状又は二つ割円筒状の保護部材、あるいは、凹部１８に樹脂を充填硬化させたもの、その他種々の保護手段が考えられる。 The protective member 20 in the illustrated example is used to protect the strain gauge 19 against an external impact, and is made of a cylindrical metal that covers the outer periphery of the female screw portion 15 including the concave portion 18 that is a circumferential groove. Or it is a resin-made cover, and it is fixing to the outer periphery of the internal thread part 15 with the bis | screw 22. FIG. In this case, the recess 18 can be filled with rust-preventing oil or grease.
The protective member that protects the strain gauge 19 is not limited to the cylindrical protective member 20 that covers the wide range of the outer periphery of the female screw portion 15 including the concave portion 18 that is a circumferential groove as in the embodiment. A half-cylindrical protective member combined with a semi-cylindrical body, or a cylindrical or half-cylindrical protective member that covers only the portion of the concave portion 18, or a material in which the concave portion 18 is filled and cured with resin; Various other protection means are conceivable.

前記張力センサ部２１において、図７のように、雌ネジ部１５の外周面の歪ゲージ１９に接続されたリード線２５ａは、凹部１８にあけた孔１８ａから雌ネジ部１５の内部空間に引き入れられたのち、外部に引き出されて図６に示すようにリードケーブル２５として図示せぬ歪測定装置に接続されている。
なお、歪検出部を、歪ゲージに接続した無線ＩＣタグや、ワイヤレスセンサーノードを備えた構成として、無線ＩＣタグから離れた場所に配置した、受信装置付きの歪測定装置に無線発信する構成とすることもできる。 In the tension sensor portion 21, as shown in FIG. 7, the lead wire 25 a connected to the strain gauge 19 on the outer peripheral surface of the female screw portion 15 is drawn into the internal space of the female screw portion 15 from the hole 18 a formed in the concave portion 18. After being pulled out, it is pulled out and connected to a strain measuring device (not shown) as a lead cable 25 as shown in FIG.
In addition, as a configuration provided with a wireless IC tag connected to a strain gauge and a wireless sensor node, the strain detection unit is configured to wirelessly transmit to a strain measuring device with a receiving device disposed at a location away from the wireless IC tag; You can also

上記の張力センサ付きターンバックル３は、その両側の締結ボルト１１、１２の線状体連結部９、１０に線状体を連結し、緊結用中央回転部６をその回転駆動部６ｂに工具をかけて回すと、互いに逆ネジである両側の締結ボルト１１、１２は同様に縮小又は伸長する。縮小することにより線状体に張力が付与される。
その張力により張力センサ付きターンバックル３に引張り力が作用し、ターンバックル付属金具１に貼り付けた歪ゲージ１９によりターンバックル付属金具１の伸び歪が検出され、リードケーブル２５で接続された図示略の歪測定装置により、ターンバックル付属金具１に作用する引張り力、すなわち線状体に生じている張力が測定される。 In the turnbuckle 3 with tension sensor, the linear body is connected to the linear body connecting portions 9 and 10 of the fastening bolts 11 and 12 on both sides thereof, and the tightening central rotating portion 6 is used as a tool for the rotational drive portion 6b. When turned over, the fastening bolts 11 and 12 on both sides, which are reverse screws, are similarly reduced or expanded. By contracting, a tension is applied to the linear body.
A tensile force acts on the turnbuckle 3 with a tension sensor due to the tension, and an elongation strain of the turnbuckle accessory 1 is detected by a strain gauge 19 affixed to the turnbuckle accessory 1 and connected by a lead cable 25 (not shown). The tensile force acting on the turnbuckle attachment 1, that is, the tension generated in the linear body is measured by the strain measuring device.

上記の張力センサ付きターンバックル３は種々の用途に用いることができるが、例えば、図８に示すように、斜面に配置した多数のアンカー３１の頭部にそれぞれ支圧板３２を取り付けるとともに各アンカー３１の頭部間をワイヤロープ３３で連結しかつ緊張力を付与して斜面安定化を図る斜面安定化工法において、ワイヤロープ３３の緊張力を施工時だけでなく恒久的に検出する目的で使用することができる。
図９に示すように、支圧板３２は、四角形の底板３４の中心部に穴３４ａをあけ、この穴３４ａに合わせて円筒３５を溶接固定し、円筒の三方に補強リブ３６を溶接固定した構造である。補強リブ３６にはワイヤロープ３３を通す穴３６ａをあけている。
アンカー３１の先端は地盤４０の不動層４０ａに埋め込まれ、アンカー３１のネジが形成された頭部は、支圧板３２の底板３４の穴３４ａ及び円筒３５内を通って上に突出し、突出部に座金３７を被せナット３８をアンカー３１のネジ部に螺合させ締め付けて、アンカー３１の頭部に支圧板３２を係合させている。これにより、ナット３８を締め付けた時、アンカー３１に作用する張力で支圧板３２が地盤を押圧し、地盤安定化に寄与する。
また、施工時に緊張力を付与されたワイヤロープ３３は、斜面移動時にアンカー３１が変形する際には、アンカー３１を引き留める効果や、局所的にアンカーに作用する荷重を分散させる荷重分散効果等を奏するので、斜面の崩壊を抑止ないし軽減することができる。 The above-described turnbuckle 3 with a tension sensor can be used for various applications. For example, as shown in FIG. 8, as shown in FIG. In the slope stabilization method that connects the heads of the two with the wire rope 33 and stabilizes the slope by applying tension, it is used not only for construction but also for permanent detection. be able to.
As shown in FIG. 9, the bearing plate 32 has a structure in which a hole 34a is formed in the center of a rectangular bottom plate 34, a cylinder 35 is welded and fixed in accordance with the hole 34a, and a reinforcing rib 36 is fixed by welding on three sides of the cylinder. It is. The reinforcing rib 36 has a hole 36a through which the wire rope 33 is passed.
The tip of the anchor 31 is embedded in the immovable layer 40a of the ground 40, and the head of the anchor 31 on which the screw is formed protrudes upwardly through the hole 34a of the bottom plate 34 of the bearing plate 32 and the cylinder 35. The nut 38 is screwed onto the threaded portion of the anchor 31 and tightened by covering the washer 37, and the bearing plate 32 is engaged with the head of the anchor 31. As a result, when the nut 38 is tightened, the bearing plate 32 presses the ground with the tension acting on the anchor 31 and contributes to ground stabilization.
Further, the wire rope 33 to which tension is applied at the time of construction has an effect of retaining the anchor 31 and a load distribution effect of locally distributing the load acting on the anchor when the anchor 31 is deformed when the slope is moved. Since it plays, the slope collapse can be suppressed or reduced.

ワイヤロープ３３には、上記の張力センサ付きターンバックル３が取り付けられている。張力センサ付きターンバックル３の両側の締結ボルト１１、１２の線状体連結部（リング状部）９、１０にワイヤロープ３３が連結されて、その緊張力を測定可能である。
施工時にワイヤロープ３３に緊張力を付与する際には、上記の張力センサ付きターンバックル３のターンバックル付属金具１に貼り付けられた歪ゲージ１９によりワイヤロープ３３の緊張力を検出して、適切な緊張力に設定することができる。
また、この張力センサ付きターンバックル３を、恒久的にワイヤロープの緊張力を検出する目的で設けた場合、歪ゲージ１９は施工後もワイヤロープ３３の緊張力を検出しリードケーブル２５を経て、離れた監視部に設けられた歪測定装置に伝達することができる。これにより、斜面安定化工法を施工した斜面の維持管理のために、施工後のワイヤロープの緊張力を監視する機能を果たす。 The turnbuckle 3 with a tension sensor is attached to the wire rope 33. The wire rope 33 is connected to the linear body connecting portions (ring-shaped portions) 9 and 10 of the fastening bolts 11 and 12 on both sides of the turnbuckle 3 with a tension sensor, and the tension force can be measured.
When tension is applied to the wire rope 33 during construction, the tension of the wire rope 33 is detected by the strain gauge 19 attached to the turnbuckle accessory 1 of the turnbuckle 3 with the tension sensor described above. Can be set to a great tension.
Further, when the turnbuckle 3 with a tension sensor is provided for the purpose of permanently detecting the tension of the wire rope, the strain gauge 19 detects the tension of the wire rope 33 after construction and passes through the lead cable 25. This can be transmitted to a strain measuring device provided in a remote monitoring unit. This serves to monitor the tension of the wire rope after construction for the maintenance of the slope where the slope stabilization method is applied.

また、ワイヤロープ３３の緊張力を監視することで、斜面の土塊の移動を検知し、斜面変状の警報を発する斜面安定化システムを構築することが可能となる。すなわち、移動層４０ｂの土塊が移動すると、先端が不動層４０ａ中にあるアンカーが曲がり、これに伴ってワイヤロープ３３の緊張力が増大または減少するので、斜面変状を検知できる。斜面変状の際に警報を発するシステムの具体例については省略する。
なお、前述したように歪検出部２１が無線ＩＣタグを備える構成とした場合には、受信装置付きの歪測定装置に無線発信する警報システムを構築できる。 In addition, by monitoring the tension of the wire rope 33, it is possible to construct a slope stabilization system that detects the movement of the soil mass on the slope and issues a warning of slope deformation. That is, when the mass of the moving layer 40b moves, the anchor whose tip is in the immovable layer 40a bends, and accordingly, the tension of the wire rope 33 increases or decreases, and slope deformation can be detected. A specific example of a system that issues an alarm when a slope is deformed will be omitted.
As described above, when the strain detection unit 21 includes a wireless IC tag, it is possible to construct an alarm system that wirelessly transmits to a strain measurement device with a receiving device.

上述した斜面安定化工法は、アンカー３１及び支圧板３２とともに、各アンカー３１の頭部間をワイヤロープ３３で連結しかつ緊張力を付与して斜面安定化を図る斜面安定化工法であるが、基本的に図８におけるワイヤロープを省略した斜面安定化工法にも適用できる。すなわち、アンカーの頭部間が緊張力を付与された状態のワイヤロープで連結されていない斜面安定化工法にも適用できる。
図１０（イ）に示した斜面安定化工法は、斜面に多数のアンカー３１を設置し各アンカー３１の頭部にそれぞれ支圧板３２を取り付け締着することで、斜面安定化を図るものである。
このように斜面安定化工法において、一部のアンカー頭部間を、緊張力を付与しない状態のワイヤロープ３３で連結している。
この場合のワイヤロープ３３は、土塊が移動しない通常の状態では斜面安定化に寄与していない。しかし、土塊が移動した時には、ワイヤロープ３３に緊張力が発生し、ワイヤロープ３３に取り付けられた張力センサ付きターンバックル３の歪ゲージ１９が斜面の変状を検知できる。
すなわち、この場合の張力センサ付きターンバックル３は、斜面の変状を検知する目的でワイヤロープ３３に取り付けられるものである。
図１０（ロ）は、（イ）と同じく、基本的に図８におけるワイヤロープを省略した斜面安定化工法であって、アンカーの頭部間が緊張力を付与された状態のワイヤロープで連結されていない斜面安定化工法に適用した場合である。 図示例では、アンカー３１が斜面上下方向に千鳥に配列されて、横並びのアンカー３１が斜面上下方向に交互に横にずれているアンカー配置パターンであり、横にずれた上下のアンカー３１間にワイヤロープ３３が斜めに連結され、各ワイヤロープ３３に張力センサ付きターンバックル３が取り付けられている。 The slope stabilization method described above is a slope stabilization method that stabilizes the slope by connecting the anchors 31 and the bearing plates 32 between the heads of the anchors 31 with a wire rope 33 and applying tension. Basically, it can also be applied to a slope stabilization method in which the wire rope in FIG. 8 is omitted. That is, the present invention can also be applied to a slope stabilization method in which anchor heads are not connected by a wire rope in a tensioned state.
In the slope stabilization method shown in FIG. 10 (a), slopes are stabilized by installing a large number of anchors 31 on the slopes and attaching and fixing pressure bearing plates 32 to the heads of the anchors 31, respectively. .
Thus, in the slope stabilization method, some anchor heads are connected by the wire rope 33 in a state in which no tension is applied.
In this case, the wire rope 33 does not contribute to slope stabilization in a normal state in which the mass does not move. However, when the mass moves, tension is generated in the wire rope 33, and the strain gauge 19 of the turnbuckle 3 with a tension sensor attached to the wire rope 33 can detect the deformation of the slope.
That is, the turnbuckle 3 with a tension sensor in this case is attached to the wire rope 33 for the purpose of detecting the deformation of the slope.
FIG. 10 (b) is a slope stabilization method in which the wire rope in FIG. 8 is basically omitted as in FIG. 10 (b), and the anchor heads are connected by a wire rope with tension applied. This is the case when applied to a slope stabilization method that has not been performed. In the illustrated example, the anchors 31 are arranged in a staggered manner in the up-down direction of the slope, and the anchors 31 arranged side by side are alternately shifted laterally in the up-down direction of the slope. The rope 33 is connected obliquely, and the turnbuckle 3 with a tension sensor is attached to each wire rope 33.

斜面上の浮石・転石等の落下防止を図るために、ロープで形成した落石防止ネットを斜面に敷設する場合にも、落石防止ネットを構成するロープに上記の張力センサ付きターンバックル３を取り付けることで、落石発生の可能性が高くなっていることなどを検知することができる。この場合、落石防止を兼ねた斜面安定化工法として施工する場合もある。
また、斜面に間隔をあけて支柱に立て、支柱間にロープによる落石防止ネットを張設して落石防護柵を構築する場合にも、落石防止ネットを構成するロープに上記の張力センサ付きターンバックル３を取り付けることで、落石の発生を検知することができる。
また、斜面に間隔をあけて支柱に立て、支柱間にロープによる落石防止ネットを張設して落石防護柵を構築する場合にも、落石防止ネットを構成するロープに上記の張力センサ付きターンバックル３を取り付けることで、落石の発生を検知することができる。
また、長いワイヤケーブルの両端を路側に設置した端末支柱に固定し、中間部の複数箇所を、道側に間隔をあけて設置した複数の支柱に取り付けたガードケーブルを設置する場合、ワイヤケーブルの張力を適切に設定するが、このガードケーブルに上記の張力センサ付きターンバックル３を取り付けることもできる。この場合も、単にガードケーブル施工時のワイヤケーブル張力設定に利用できるだけでなく、施工後のワイヤケーブルの張力を管理することができる。
また、建物の柱と柱の間に対角線に配置して変形を防ぐブレースにおいて、その張力付与部として設けるターンバックルとしても使用することもできる。この場合、地震などの際に実際にどの程度の荷重が作用したかを記録でき、その時の変形の有無など合せて判断することなどで、建物の耐震性などを管理することができる。 In order to prevent fall of rocks, rolling stones, etc. on the slope, the turnbuckle 3 with the tension sensor is attached to the rope that constitutes the rock fall prevention net even when a rock fall prevention net formed of rope is laid on the slope. Therefore, it is possible to detect that the possibility of falling rocks has increased. In this case, it may be constructed as a slope stabilization method that also serves to prevent falling rocks.
In addition, when constructing a rockfall protection fence by setting up a rockfall prevention net with a rope between the pillars with a gap between the slopes, the turnbuckle with the tension sensor described above is attached to the rope that constitutes the rockfall prevention net. By attaching 3, it is possible to detect the occurrence of falling rocks.
In addition, when constructing a rockfall protection fence by setting up a rockfall prevention net with a rope between the pillars with a gap between the slopes, the turnbuckle with the tension sensor described above is attached to the rope that constitutes the rockfall prevention net. By attaching 3, it is possible to detect the occurrence of falling rocks.
In addition, when installing a guard cable attached to a plurality of struts that are installed on the roadside at multiple points in the middle, the ends of the long wire cable are fixed to the terminal struts installed on the roadside. Although the tension is set appropriately, the turnbuckle 3 with the tension sensor can be attached to the guard cable. Also in this case, not only can it be used for setting the wire cable tension during construction of the guard cable, but also the tension of the wire cable after construction can be managed.
Moreover, it can also be used as a turnbuckle provided as a tension applying portion in a brace that is arranged diagonally between columns of a building to prevent deformation. In this case, it is possible to record how much load is actually applied in the event of an earthquake and the like, and it is possible to manage the earthquake resistance of the building by determining whether there is any deformation at that time.

なお、本発明のターンバックル付属金具を装着するターンバックルは、実施例では筒状の緊結用中央回転部６を有するパイプ式ターンバックル２であるが、ターンバックルの構造は実施例のものに限らず、種々のタイプのものを使用できる。
適用するターンバックルが例えば図１１に示すように、枠体６ｃ’の両側に互いに逆ネジである雌ネジ部４’、５’を設けた緊結用中央回転部６’を有する枠式ターンバックル２’であってもよい。前記両側の雌ネジ部４’、５’に、互いに逆ネジの雄ネジ部７’、８’を有する締結ボルト１１’、１２’がそれぞれ螺合する。その他、適用するターンバックルのタイプは特に限定されない。
また、線状体を連結する線状体連結部の形状も、実施例のリング状のものに限らず、フックその他、適宜設計変更できる。 The turnbuckle to which the turnbuckle accessory of the present invention is attached is a pipe-type turnbuckle 2 having a cylindrical fastening central rotating portion 6 in the embodiment, but the structure of the turnbuckle is not limited to that of the embodiment. Instead, various types can be used.
For example, as shown in FIG. 11, the turnbuckle to be applied is a frame type turnbuckle 2 having a central rotating portion 6 'for fastening provided with female screw portions 4' and 5 'which are reverse screws on both sides of the frame body 6c'. 'May be. Fastening bolts 11 ′ and 12 ′ having male screw portions 7 ′ and 8 ′ that are opposite to each other are screwed into the female screw portions 4 ′ and 5 ′ on both sides. In addition, the type of turnbuckle to be applied is not particularly limited.
Further, the shape of the linear body connecting portion that connects the linear bodies is not limited to the ring shape of the embodiment, and can be appropriately changed in design such as a hook.

１ ターンバックル付属金具
２、２’ ターンバックル
３、３’ 張力センサ付きターンバックル
４、５、４’、５’ 雌ネジ部
６、６’ 緊結用中央回転部
６ａ 平坦部
６ｂ 回転駆動部
７、８、７’、８’ 雄ネジ部
９、１０ 線状体連結部
１１、１１’ 第１の締結ボルト
１２、１２’ 第２の締結ボルト
１５ 雌ネジ部
１６ 雄ネジ部
１７ 金具本体
１８ 凹部
１９ 歪ゲージ
２０ 保護部材
２１ 張力センサ部
２２ ビス
２５ リードケーブル
２５ａ リード線
1 Turnbuckle fitting 2, 2 'Turnbuckle 3, 3' Turnbuckle with tension sensor 4, 5, 4 ', 5' Female thread portion 6, 6 'Tightening central rotation portion 6a Flat portion 6b Rotation drive portion 7, 8, 7 ′, 8 ′ Male thread part 9, 10 Linear body coupling part 11, 11 ′ First fastening bolt 12, 12 ′ Second fastening bolt 15 Female thread part 16 Male thread part 17 Hardware body 18 Recess 19 Strain gauge 20 Protective member 21 Tension sensor 22 Screw 25 Lead cable 25a Lead wire

Claims (9)

ターンバックルに連結される線状体の張力を測定する張力センサを備えたターンバックル付属金具であって、
前記ターンバックル付属金具は、一端に雄ネジ部、他端に雌ネジ部を有する棒状であり、前記金具の外周面に凹部が形成されて、前記凹部に歪ゲージを取り付けるとともに、この歪ゲージを保護する保護部材を設けられており、
前記金具の雄ネジ部は、ターンバックルの緊結用中央回転部に設けられた雌ネジ部と連結可能にネジ切りされ、
前記金具の雌ネジ部は、線状体と連結する線状体連結部を備える締結ボルトに設けられた雄ネジ部と連結可能にネジ切りされていることを特徴とするターンバックル付属金具。 A turnbuckle accessory with a tension sensor for measuring the tension of the linear body connected to the turnbuckle,
The turnbuckle-attached metal fitting has a rod shape having a male screw portion at one end and a female screw portion at the other end, and a concave portion is formed on the outer peripheral surface of the metal fitting, and a strain gauge is attached to the concave portion. A protective member to protect is provided,
The male thread part of the metal fitting is threaded so as to be connectable with the female thread part provided in the central rotation part for binding of the turnbuckle,
The turnbuckle attachment metal fitting, wherein the female screw portion of the metal fitting is threaded so as to be connectable with a male screw portion provided on a fastening bolt provided with a linear body connecting portion connected to a linear body. 対象とする前記ターンバックルが汎用のターンバックルであり、前記汎用のターンバックルとは、両端部に互いに逆ネジである雌ネジ部を有する緊結用中央回転部と、前記両端部の雌ネジ部へそれぞれ連結可能な雄ネジ部を一端側に有するとともに他端側に線状体連結部を有する第１及び第２の締結ボルトと、からなるターンバックルであることを特徴とする請求項１記載のターンバックル付属金具。   The target turnbuckle is a general-purpose turnbuckle, and the general-purpose turnbuckle is connected to a central rotation portion for fastening having female screw portions that are mutually opposite screws at both ends, and to the female screw portions at both ends. 2. A turnbuckle comprising a first and a second fastening bolt each having a male thread portion connectable to one end side and a linear body connecting portion on the other end side. Turnbuckle attachment bracket. 当該ターンバックル付属金具を備えた張力センサ付きターンバックルが、恒久的に線状体の張力を測定可能なように、歪みゲージを取り付けた張力センサ部又は／及び保護部材に防水処理を施したものであることを特徴とする請求項１又は２記載の記載のターンバックル付属金具。   The turnbuckle with a tension sensor equipped with the turnbuckle accessory fitting is a tension sensor part and / or protective member with a strain gauge attached so that the tension of the linear body can be measured permanently. The turnbuckle attachment metal fitting according to claim 1 or 2 characterized by things. 対象とする前記ターンバックルが、斜面に配置した多数のアンカーの頭部にそれぞれ支圧板を取り付けて斜面安定化を図る斜面安定化工法において、一部のアンカー間を緊張力を付与しない態様でロープで連結する場合における前記ロープに介在させるターンバックルであることを特徴とする請求項１〜３のいずれか１項に記載のターンバックル付属金具。   In the slope stabilization method in which the target turnbuckle attaches a bearing plate to the heads of a number of anchors arranged on the slope to stabilize the slope, the rope in a manner that does not give tension between some anchors The turnbuckle accessory metal fitting according to any one of claims 1 to 3, wherein the turnbuckle is a turnbuckle interposed between the ropes in the case of being connected with a cable. 対象とする前記ターンバックルが、斜面に配置した多数のアンカーの頭部にそれぞれ支圧板を取り付けるとともに各アンカー頭部間をロープで連結しかつ緊張力を付与して斜面安定化を図る斜面安定化工法において、アンカー間を連結する前記ロープに介在させるターンバックルであることを特徴とする請求項１〜３のいずれか１項に記載のターンバックル付属金具。   The target turnbuckle is a slope stabilization work that attaches pressure bearing plates to the heads of a number of anchors arranged on the slope, connects the anchor heads with ropes, and applies tension to stabilize the slope. The turnbuckle attachment bracket according to any one of claims 1 to 3, wherein the turnbuckle is a turnbuckle interposed between the ropes connecting the anchors. 対象とする前記ターンバックルが、斜面に配置した多数のアンカーの頭部をロープで連結し、かつ緊張力を付与して浮石や転石を押さえ斜面安定化を図る斜面安定化工法において、アンカー間を連結する前記ロープに介在させるターンバックルであることを特徴とする請求項１〜３のいずれか１項に記載のターンバックル付属金具。   In the slope stabilization method in which the target turnbuckle connects the heads of a number of anchors arranged on the slope with ropes and applies tension to stabilize the slope by holding rocks and rolls, between the anchors It is a turnbuckle interposed in the said rope to connect, The turnbuckle attachment metal fitting of any one of Claims 1-3 characterized by the above-mentioned. 前記凹部が周溝であることを特徴とする請求項１〜６のいずれか１項に記載の記載のターンバックル付属金具。   The turnbuckle attachment fitting according to any one of claims 1 to 6, wherein the recess is a circumferential groove. 前記凹部を前記雌ネジ部の外周面に形成したことを特徴とする請求項１〜７のいずれか１項に記載のターンバックル付属金具。   The turnbuckle attachment bracket according to any one of claims 1 to 7, wherein the concave portion is formed on an outer peripheral surface of the female screw portion. 両端部に互いに逆ネジである雌ネジ部を有する緊結用中央回転部と、前記両端部の雌ネジ部へそれぞれ連結可能な雄ネジ部を一端側に有するとともに他端側に線状体連結部を有する第１及び第２の締結ボルトとからなるターンバックルに請求項１のターンバックル付属金具を取り付けてなる張力センサ付きターンバックルであって、
前記緊結用中央回転部の一端側に第１又は第２の締結ボルトの一方の締結ボルトの雄ネジ部が連結され、緊結用中央回転部の他端側に前記ターンバックル付属金具の雄ネジ部が連結され、このターンバックル付属金具の雌ネジ部に他方の締結ボルトの雄ネジ部が連結されてなることを特徴とする張力センサ付きターンバックル。 A central rotating portion for fastening having female screw portions which are mutually opposite screws at both ends, a male screw portion connectable to the female screw portions at both ends on one end side, and a linear body connecting portion on the other end side A turnbuckle with a tension sensor obtained by attaching the turnbuckle accessory fitting of claim 1 to a turnbuckle comprising first and second fastening bolts having
A male screw portion of one fastening bolt of the first or second fastening bolt is connected to one end side of the tightening central rotating portion, and a male screw portion of the turnbuckle accessory fitting is connected to the other end side of the tightening central rotating portion. And a male screw part of the other fastening bolt is connected to the female screw part of the turnbuckle attachment fitting.
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