WO2012169534A1 - Metal turnbuckle accessory fitting and turnbuckle with tension sensor using same - Google Patents

Metal turnbuckle accessory fitting and turnbuckle with tension sensor using same Download PDF

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Publication number
WO2012169534A1
WO2012169534A1 PCT/JP2012/064571 JP2012064571W WO2012169534A1 WO 2012169534 A1 WO2012169534 A1 WO 2012169534A1 JP 2012064571 W JP2012064571 W JP 2012064571W WO 2012169534 A1 WO2012169534 A1 WO 2012169534A1
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WIPO (PCT)
Prior art keywords
turnbuckle
tension
slope
tension sensor
accessory
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PCT/JP2012/064571
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French (fr)
Japanese (ja)
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佳意 樋口
岩佐 直人
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日鐵住金建材株式会社
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Publication of WO2012169534A1 publication Critical patent/WO2012169534A1/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16GBELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G11/00Means for fastening cables or ropes to one another or to other objects; Caps or sleeves for fixing on cables or ropes
    • F16G11/12Connections or attachments, e.g. turnbuckles, adapted for straining of cables, ropes, or wire
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01FADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F7/00Devices 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
    • E01F7/04Devices affording protection against snowslides, avalanches or falling rocks, e.g. avalanche preventing structures, galleries
    • E01F7/045Devices specially adapted for protecting against falling rocks, e.g. galleries, nets, rock traps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/06Turnbuckles

Definitions

  • 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 part at one end and a female screw part 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 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 section and / or protective member is waterproofed.
  • 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.
  • 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 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.
  • 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.
  • the male threaded portion of the one fastening bolt 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.
  • the strain gauge is affixed to the outer peripheral surface of the metal fitting, a turnbuckle with a tension sensor that can measure the tension of the linear body can be obtained simply by attaching the turnbuckle accessory metal fitting of the present invention to a general-purpose turnbuckle. it can.
  • 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.
  • 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.
  • 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. It is a top view of the turnbuckle with a tension sensor of FIG.
  • FIG. 3 is an exploded view of FIG. 2.
  • FIG. 3 is a cross-sectional view taken along line AA in FIG. 2. 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.
  • FIG. 6 is a plan view of FIG. 5.
  • FIG. 7 is a sectional view taken along line BB in FIG. Fig.
  • the anchors 31 are arranged in a staggered manner in the vertical direction of the slope, and the anchors 31 arranged side by side are alternately shifted laterally in the vertical 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.

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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

A metal turnbuckle accessory fitting, which is provided with a tension sensor that measures the tension of a linear body that is connected to the turnbuckle and is characterized in that: the metal turnbuckle accessory fitting has a rod shape with male threads at one end and female threads at the other end; a concavity is formed on the outer circumferential surface of the metal fitting; a strain gauge is installed at the concavity and a protective member to protect the strain gauge is provided; the male threads of the metal fitting are threaded so as to be connectable to the female threads provided on the central rotating fastening part of the turnbuckle; and the female threads of the metal fitting are threaded so as to be connectable to the male threads provided on a fastening bolt that is provided with a linear object-connecting part that connects with a linear object.

Description

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Turnbuckle attachment bracket and turnbuckle with tension sensor using the same
 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. There is no problem in terms of cost in making the structure. However, when it is used for permanent applications such as maintaining the tension of many wire ropes laid in the slope stabilization method, turnbuckles are used. 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 part at one end and a female screw part 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. From the first and second fastening bolts having a central rotating portion for binding, male threaded portions that can be coupled to the female threaded portions at both ends on one end side, and linear body connecting portions 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 section and / or protective member is 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。
According to a fourth aspect of the present invention, in the turnbuckle accessory fitting according to any one of the first to third aspects,
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 attachment 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 accessory 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 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, a turnbuckle with a tension sensor that can measure the tension of the linear body can be obtained simply by attaching the turnbuckle accessory metal 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 as in claim 6, the output of the strain gauge is likely to accurately reflect the load acting on the turnbuckle accessory fitting. 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 cylindrical 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 fastening, 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。FIG. 3 is a cross-sectional view taken along line AA in FIG. 2. 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。FIG. 7 is a sectional view taken along line BB in 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。FIG. 9 shows a detailed structure of one anchor portion in FIG. 8, wherein (a) is a plan view (a plan view as seen from a DD section of (B)), and (B) is a longitudinal 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. 本発明の一実施例に係る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 fitting which concerns on one Example 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。
[実施例1]
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.
[Example 1]
 図1は本発明の一実施例に係る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。
1 is a perspective view of a turnbuckle accessory 1 according to an embodiment 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. 2 is an exploded view, and FIG. 4 is a cross-sectional view taken along the line AA in 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。
FIGS. 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。
 なお、恒久的に線状体の張力を測定可能なように、歪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が施されていることが好ましい。
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
In addition, it is preferable that the waterproof process is given to the tension sensor part or / and protective member which attached the strain gauge so that the tension | tensile_strength of a linear body can be measured permanently.
 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。
[実施例2]
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 attached 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.
[Example 2]
 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、略三角形の底板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, in the bearing plate 32, a hole 34a is formed in the center of a substantially triangular 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. Structure. 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 on which the screw of the anchor 31 is formed protrudes upward 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 applying tension to the wire rope 33 during construction, the tension of the wire rope 33 is detected by the strain gauge 19 affixed to the turnbuckle accessory 1 of the turnbuckle 3 with 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。
[実施例3]
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.
[Example 3]
 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。
[実施例4]
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 vertical direction of the slope, and the anchors 31 arranged side by side are alternately shifted laterally in the vertical 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.
[Example 4]
 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 falling rocks, rolling stones, etc. on the slope, the above-mentioned turnbuckle with tension sensor should be attached to the rope that constitutes the rockfall prevention net even when a rockfall 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 standing on a pillar with a gap between the slopes and by installing a ropefall prevention net between the pillars, 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.
 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利用可能である。 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 It can be used for a turnbuckle with a tension sensor using
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)

  1.  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 screw portion of the metal fitting is threaded so as to be connectable with a female screw portion provided in the central rotation portion for fastening of the turnbuckle, and the female screw portion of the metal fitting is a linear body connecting portion that is connected to a linear body. The turnbuckle attachment metal fitting characterized by being threaded so that it can connect with the external thread part provided in the fastening bolt provided with.
  2.  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.
  3.  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, wherein
  4.  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-attached bracket according to any one of claims 1 to 3, wherein the turnbuckle is a turnbuckle interposed between the ropes when they are connected together.
  5.  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.
  6.  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 The turnbuckle accessory fitting according to any one of claims 1 to 3, wherein the turnbuckle is a turnbuckle interposed between the ropes to be connected.
  7.  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項に記載のターンバックル付属金具。 The turnbuckle-attached bracket according to any one of claims 1 to 6, wherein the recess is a circumferential groove.
  8.  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 accessory fitting according to any one of claims 1 to 7, wherein the recess is formed on an outer peripheral surface of the female screw portion.
  9.  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 in which the turnbuckle accessory of claim 1 is attached to a turnbuckle comprising a first fastening bolt and a second fastening bolt having the first or second fastening bolt, The male screw portion of one fastening bolt of the second fastening bolt is connected, and the male screw portion of the turnbuckle accessory is connected to the other end of the central rotation portion for fastening. The female screw portion of the turnbuckle accessory A turnbuckle with a tension sensor, wherein a male screw portion of the other fastening bolt is connected to the turnbuckle.
PCT/JP2012/064571 2011-06-08 2012-06-06 Metal turnbuckle accessory fitting and turnbuckle with tension sensor using same WO2012169534A1 (en)

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JP5725982B2 (en) 2015-05-27
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JP2012255472A (en) 2012-12-27

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