JP2012215232A - Fall preventive tool - Google Patents

Fall preventive tool Download PDF

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JP2012215232A
JP2012215232A JP2011080659A JP2011080659A JP2012215232A JP 2012215232 A JP2012215232 A JP 2012215232A JP 2011080659 A JP2011080659 A JP 2011080659A JP 2011080659 A JP2011080659 A JP 2011080659A JP 2012215232 A JP2012215232 A JP 2012215232A
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nut
tool
bolt
cap
holder
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JP5312509B2 (en
Inventor
Hiromichi Maehara
博道 前原
Kunihiko Inagaki
邦比古 稲垣
Shinji Hotehama
眞治 保手濱
Tsukasa Okano
司 岡野
Tomoaki Mukai
友章 向井
Katsumi Fujii
克美 藤井
Takashi Katamoto
隆 片本
Tatsuya Kubo
達也 久保
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Chugoku Electric Power Co Inc
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Chugoku Electric Power Co Inc
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Abstract

PROBLEM TO BE SOLVED: To provide a lightweight fall preventive tool, which can be used with a necessary set number and reduce the loads on a worker during carrying and working.SOLUTION: The fall preventive tool includes: a holding tool 11 which is formed with a thin-walled and lightweight metal or resin, and holds a nut 4 including a fore end part of a screw part 2; a substantially cylindrical cap tool 12 which is formed with a thin-walled and lightweight metal or resin, and accommodates and holds the holding tool 11; and a stringlike connecting tool 13 for connecting the holding tool 11 to the cap tool 12. The holding tool 11 includes: a support part 14 with the screw part 2 of a bolt 1 passing therethrough, and a bolt head side surface of the nut 4 being supported by its inner surface; an accommodation part 15 for accommodating the nut 4 including the fore end part of the screw part 2; and an opening part 16 in which the nut 4 including the fore end part of the screw part 2 is inserted into the accommodation part 15. Both ends of the connecting tool 13 are connected to an end on the fore end side of the screw part 2 while the holding tool 11 is accommodated in the cap tool 12.

Description

本発明は、主として高所作業においてボルトまたはナットの落下を防止するための落下防止具に関する。   The present invention relates to a fall prevention tool for preventing a bolt or nut from dropping mainly in high-altitude work.

従来から、鉄塔等の構造物の組立作業や補修作業或いは電柱の装柱の着脱作業などのように、比較的高所で作業する場合には、ボルトやナット等の資材を落下させてしまうと、資材の損傷や遺失を招くうえ、落下場所に存在していた物品や等にも損傷を与えてしまう虞がある。   Conventionally, when working at a relatively high place, such as assembly work or repair work of structures such as steel towers or work of attaching and detaching pole poles, materials such as bolts and nuts are dropped. In addition to the damage and loss of materials, there is a risk of damaging articles and the like that existed in the place where they were dropped.

特に、鉄塔や電柱での高所作業では、素手による作業では感電防止対策として厚い絶縁手袋を着用して作業する場合が多いことから、ボルトやナットのような小さなものは把持し難く、作業中に過って取り落としてしまう可能性もある。   In particular, when working with high places on steel towers and utility poles, work with bare hands often involves wearing thick insulating gloves as a measure against electric shock, so it is difficult to grip small items such as bolts and nuts. There is a possibility that it will be overlooked.

一般的に、このような高所作業では、作業現場周辺の資材落下想定範囲に作業区画を設定するが、その予定作業区画の範囲内に重量物等の動かし難い構造物があるなど、充分な作業区画を確保することができない場合もある。   Generally, in such high-altitude work, the work section is set in the expected material fall range around the work site, but there are sufficient structures such as heavy objects that are difficult to move within the planned work section. In some cases, it is not possible to secure a work section.

このため、ボルトやナット等を作業中に落下し難くするために、クリップによりボルトのネジ部を挟持する落下防止具が提案されている。(例えば、特許文献1参照)   For this reason, in order to make it difficult for a bolt, a nut, or the like to fall during work, a fall prevention tool that holds a screw portion of the bolt with a clip has been proposed. (For example, see Patent Document 1)

しかしながら、このようなボルトのネジ部を保持するクリップでは、ナットを保持することができず、充分な落下防止具とは言い難いという問題が生じていた。   However, such a clip that holds the screw portion of the bolt cannot hold the nut, and there has been a problem that it cannot be said to be a sufficient fall prevention tool.

そこで、弾性キャップ具によりボルト・ナットを別々に保持する落下防止具が提案されている。(例えば、特許文献2参照)   Therefore, a fall prevention device has been proposed in which the bolt and nut are separately held by an elastic cap device. (For example, see Patent Document 2)

特開2009−041741号公報JP 2009-017441 A 特開2005−287168号公報JP 2005-287168 A

しかしながら、ボルト・ナットを独立して保持する弾性キャップ具では、必要な組数の倍の弾性キャップ具を必要とするばかりでなく、比較的厚肉で重いゴム等の弾性体でボルト・ナットを独立して保持していることと相俟って、作業者の持ち運びの負担が大きいといった問題が生じていた。   However, an elastic cap device that holds bolts and nuts independently requires not only the required number of elastic cap devices, but also a relatively thick and heavy elastic material such as rubber. Coupled with the independent holding, there was a problem that the burden of carrying the worker was heavy.

また、ボルト・ナットを独立して保持することから、複数組のボルト・ナットを保持して作業を行っていた際、特に、ナットは弾性キャップ具内に完全収納されていることから、目視し難く、使用済みの空キャップ具と使用前のキャップ具とを区別することができず、作業工数が増してしまうという問題が生じていた。   In addition, since the bolts and nuts are held independently, when working with multiple sets of bolts and nuts, the nuts are completely housed in the elastic cap. It is difficult to distinguish between the used empty cap device and the cap device before use, resulting in an increase in the number of work steps.

しかも、ダブルナット方式での螺合の場合、ナットを保持する弾性キャップ具数も増えてしまい、上述した持ち運びや作業工数等の作業者負担はさらに増えてしまう。   In addition, in the case of screwing by the double nut method, the number of elastic caps holding the nut increases, and the burden on the operator such as carrying and man-hours described above further increases.

本発明は上述のかかる事情に鑑みてなされたものであり、軽量で必要な組数で足りることができ、作業者の持ち運びや作業時の負担を軽減することができる落下防止具を提供することを目的とする。   The present invention has been made in view of the above-described circumstances, and provides a fall prevention device that is light and can be provided in a necessary number of sets, and that can reduce the burden of carrying and working by an operator. With the goal.

また、ダブルナット方式での螺合にあっても、作業者負担を軽減することができる落下防止具を提供することを目的とする。   It is another object of the present invention to provide a fall prevention device that can reduce the burden on the operator even when screwing in a double nut system.

上記課題を解決するため、本発明の落下防止具は、ボルトにナットを螺合した状態でボルトのネジ先端部を含むナットをボルト軸線方向に沿う抜け止め状態で保持する落下防止具であって、薄肉軽量な金属又は樹脂から形成されてボルトのネジ先端部を含むナットを保持する保持具と、薄肉軽量な金属又は樹脂から形成されて前記保持具を収納保持する略円筒形状のキャップ具と、前記保持具と前記キャップ具とを連結する紐状の連結具と、を備え、前記保持具は、ボルトのネジ部が貫通し且つナットのボルト頭部側の面(以下、「ボルト頭部側面」という。)を内面で支持する支持部と、ネジ先端部を含むナットを収納する収納部と、ネジ先端部を含むナットを前記収納部に挿入する開口部と、を備え、前記連結具は、前記保持具を前記キャップ具に収納した状態でネジ部先端側の端部に両端が連結されていることを特徴とする。   In order to solve the above-mentioned problems, the fall prevention device of the present invention is a fall prevention device that holds a nut including a screw tip portion of a bolt in a state in which the nut is screwed in a bolt axial direction in a state where the nut is screwed onto the bolt. A holder that holds a nut including a screw tip of a bolt that is formed from a thin and light metal or resin, and a substantially cylindrical cap that is formed from a thin and light metal or resin to store and hold the holder. A string-like connector for connecting the retainer and the cap member, wherein the retainer has a threaded portion of a bolt passing through and a surface on the bolt head side of the nut (hereinafter referred to as a “bolt head”). A connecting portion for supporting a nut including a screw tip portion, and an opening for inserting the nut including a screw tip portion into the receiving portion. The holder is the key. Characterized in that both end to the end of the screw portion distal end side in a state housed in-up device is connected.

本発明の落下防止具によれば、軽量で必要な組数で足りることができ、作業者の持ち運びや作業時の負担を軽減することができる。   According to the fall prevention device of the present invention, the required number of sets can be sufficient because it is lightweight, and it is possible to reduce the burden of carrying and working by the operator.

前記キャップ具には、軸線方向に沿い且つ両端に跨るスリットが形成されていることを特徴とする。   The cap device is characterized in that a slit is formed along the axial direction and straddling both ends.

このような構成によれば、ボルトおよびナットを取り外した後には、保持具とキャップ具とが分離するため、ナットのみを保持したままのものとを容易に区別することができ、ナットを探すといった面倒を無くすことができる。   According to such a configuration, after removing the bolt and the nut, the holder and the cap are separated from each other, so that it is possible to easily distinguish the one holding only the nut, and to search for the nut. The trouble can be eliminated.

前記収納部は、ナットを嵌合保持するナット収納保持部と、ワッシャを保持するワッシャ収納保持部と、を備えていることを特徴とする。   The storage section includes a nut storage holding section that fits and holds a nut, and a washer storage holding section that holds a washer.

このような構成によれば、ボルトとナットの間にワッシャが存在する場合でも、ボルトをナットから外した後にナットをボルトに螺合する際の作業を容易に行うことができ、作業中のワッシャの脱落を防ぐことができる。   According to such a configuration, even when a washer exists between the bolt and the nut, it is possible to easily perform the work when screwing the nut into the bolt after the bolt is removed from the nut, Can be prevented from falling off.

前記キャップ具は、前記ワッシャ収納保持部の開放端を覆う庇状のナット支持部と、前記ワッシャ収納保持部のみを覆う略円筒形状のネジキャップ具と、を備えていることを特徴とする。   The cap device includes a bowl-shaped nut support portion that covers an open end of the washer storage and holding portion, and a substantially cylindrical screw cap device that covers only the washer storage and holding portion.

このような構成によれば、キャップ具のより一層の小型化並びに軽量化に貢献することができる。   According to such a configuration, it is possible to contribute to further downsizing and weight reduction of the cap device.

本発明の落下防止具は、軽量で必要な組数で足りることができ、作業者の持ち運びや作業時の負担を軽減することができる。   The fall prevention device of the present invention is light and can be provided in a necessary number of sets, and can reduce the burden of carrying and working by an operator.

本発明の一実施形態に係る実施例1の落下防止具を示す要部の分解斜視図である。It is a disassembled perspective view of the principal part which shows the fall prevention tool of Example 1 which concerns on one Embodiment of this invention. 本発明の一実施形態に係る実施例1の落下防止具を示し、(A)は保持具にボルト・ナットを保持させた状態の要部の分解斜視図、(B)は要部の組み付け状態の斜視図である。The fall prevention tool of Example 1 which concerns on one Embodiment of this invention is shown, (A) is a disassembled perspective view of the principal part of the state which made the holder hold | maintain a volt | bolt nut, (B) is the assembly | attachment state of the principal part FIG. 本発明の一実施形態に係る実施例1の落下防止具に適用される保持具を示し、(A)は保持具の正面図、(B)は保持具のA−A断面図、(C)は保持具の背面図、(D)は保持具の平面図である。The holder applied to the fall prevention tool of Example 1 which concerns on one Embodiment of this invention is shown, (A) is a front view of a holder, (B) is AA sectional drawing of a holder, (C). Is a rear view of the holder, and (D) is a plan view of the holder. 本発明の一実施形態に係る実施例1の落下防止具に適用されるキャップ具を示し、(A)はキャップ具の正面図、(B)はキャップ具の側面図、(C)はキャップ具の背面図、(D)はキャップ具の平面図である。The cap implement applied to the fall prevention implement of Example 1 which concerns on one Embodiment of this invention is shown, (A) is a front view of a cap implement, (B) is a side view of a cap implement, (C) is a cap implement. (D) is a top view of a cap implement. 本発明の一実施形態に係る実施例1の落下防止具における使用例を示し、(A)はボルト・ナット保持状態の落下防止具の平面図、(B)はナット保持状態の落下防止具の平面図、(C)はボルト・ナット非保持状態の落下防止具の平面図である。The usage example in the fall prevention tool of Example 1 which concerns on one Embodiment of this invention is shown, (A) is a top view of the fall prevention tool of a bolt and nut holding state, (B) is the fall prevention tool of a nut holding state. A top view and (C) are top views of the fall prevention tool of a bolt and nut non-holding state. 本発明の一実施形態に係る実施例1の応用例を示す要部の分解斜視図である。It is a disassembled perspective view of the principal part which shows the application example of Example 1 which concerns on one Embodiment of this invention. 本発明の一実施形態に係る実施例1の応用例1の落下防止具を示し、(A)はボルト・ナット保持状態の要部の分解斜視図、(B)は要部の組み付け状態の斜視図である。The fall prevention tool of the application example 1 of Example 1 which concerns on one Embodiment of this invention is shown, (A) is a disassembled perspective view of the principal part of a bolt and nut holding | maintenance state, (B) is a perspective view of the assembly | attachment state of a principal part. FIG. 本発明の一実施形態に係る実施例1の応用例2の落下防止具を示す要部の分解斜視図である。It is a disassembled perspective view of the principal part which shows the fall prevention tool of the application example 2 of Example 1 which concerns on one Embodiment of this invention. 本発明の一実施形態に係る実施例1の応用例2の落下防止具を示し、(A)はボルト・ナット保持状態のナット取り外し前の要部の分解斜視図、(B)はボルト取り外し・ナット保持状態の要部の分解斜視図、(C)は要部の組み付け状態の斜視図である。The fall prevention tool of the application example 2 of Example 1 which concerns on one Embodiment of this invention is shown, (A) is a disassembled perspective view of the principal part before nut removal of a bolt and nut holding state, (B) is bolt removal and FIG. 4C is an exploded perspective view of the main part in the nut holding state, and FIG. 本発明の一実施形態に係る実施例2の落下防止具を示す要部の分解斜視図である。It is a disassembled perspective view of the principal part which shows the fall prevention tool of Example 2 which concerns on one Embodiment of this invention. 本発明の一実施形態に係る実施例2の落下防止具を示し、(A)は保持具にボルト・ナットを保持させた状態の要部の分解斜視図、(B)は要部の組み付け状態の斜視図である。The fall prevention tool of Example 2 which concerns on one Embodiment of this invention is shown, (A) is an exploded perspective view of the principal part of the state which made the holder hold | maintain a volt | bolt and nut, (B) is the assembly | attachment state of the principal part FIG. 本発明の一実施形態に係る実施例2の落下防止具に適用される保持具を示し、(A)は保持具の正面図、(B)は保持具のB−B断面図、(C)は保持具の背面図、(D)は保持具の平面図である。The holder applied to the fall prevention tool of Example 2 which concerns on one Embodiment of this invention is shown, (A) is a front view of a holder, (B) is BB sectional drawing of a holder, (C). Is a rear view of the holder, and (D) is a plan view of the holder. 本発明の一実施形態に係る実施例3の落下防止具を示す要部の分解斜視図である。It is a disassembled perspective view of the principal part which shows the fall prevention tool of Example 3 which concerns on one Embodiment of this invention. 本発明の一実施形態に係る実施例3の落下防止具を示し、(A)は保持具にボルト・ナットを保持させた状態の要部の分解斜視図、(B)は要部の組み付け状態の側面図である。The fall prevention tool of Example 3 which concerns on one Embodiment of this invention is shown, (A) is a disassembled perspective view of the principal part in the state which hold | maintained the volt | bolt and nut to the holder, (B) is the assembly | attachment state of the principal part FIG. 本発明の一実施形態に係る実施例3の落下防止具に適用される保持具を示し、(A)は保持具の正面図、(B)は保持具のC−C断面図、(C)は保持具の背面図、(D)は保持具の平面図である。The holder applied to the fall prevention tool of Example 3 which concerns on one Embodiment of this invention is shown, (A) is a front view of a holder, (B) is CC sectional drawing of a holder, (C). Is a rear view of the holder, and (D) is a plan view of the holder. 本発明の一実施形態に係る実施例3の落下防止具に適用されるキャップ具を示し、(A)はキャップ具の正面図、(B)はキャップ具の側面図、(C)はキャップ具の背面図、(D)はキャップ具の平面図である。The cap tool applied to the fall prevention tool of Example 3 which concerns on one Embodiment of this invention is shown, (A) is a front view of a cap tool, (B) is a side view of a cap tool, (C) is a cap tool. (D) is a top view of a cap implement. 本発明の一実施形態に係る実施例3の落下防止具に適用される変形例を示し、(A)は保持具にボルト・ナットを保持させた状態の要部の分解斜視図、(B)は要部の組み付け状態の斜視図である。The modification applied to the fall prevention tool of Example 3 which concerns on one Embodiment of this invention is shown, (A) is a disassembled perspective view of the principal part in the state which made the holder hold | maintain a volt | bolt nut, (B). FIG. 3 is a perspective view of an assembled state of main parts.

次に、本発明の一実施形態に係る落下防止具について、図面を参照して説明する。尚、以下に示す実施例は本発明の落下防止具における好適な具体例であり、技術的に好ましい種々の限定を付している場合もあるが、本発明の技術範囲は、特に本発明を限定する記載がない限り、これらの態様に限定されるものではない。また、以下に示す実施形態における構成要素は適宜、既存の構成要素等との置き換えが可能であり、かつ、他の既存の構成要素との組合せを含む様々なバリエーションが可能である。したがって、以下に示す実施形態の記載をもって、特許請求の範囲に記載された発明の内容を限定するものではない。   Next, the fall prevention tool which concerns on one Embodiment of this invention is demonstrated with reference to drawings. In addition, although the Example shown below is a suitable specific example in the fall prevention tool of this invention, and there may be a technically preferable various limitation, the technical scope of this invention is the present invention especially. As long as there is no description which limits, it is not limited to these aspects. In addition, the constituent elements in the embodiments shown below can be appropriately replaced with existing constituent elements and the like, and various variations including combinations with other existing constituent elements are possible. Therefore, the description of the embodiment described below does not limit the contents of the invention described in the claims.

[実施例1]
まず、本発明の一実施形態に係る実施例1の落下防止具について図1乃至図7を用いて説明する。
[Example 1]
First, the fall prevention tool of Example 1 which concerns on one Embodiment of this invention is demonstrated using FIG. 1 thru | or FIG.

(全体構成)
図1及び図2において、1はボルト、2はボルト1のネジ部、4はネジ部2に螺合されたナットである。尚、本発明においては、ナット4はネジ部2の先端が突出する程度に螺合されていれば良い。
(overall structure)
1 and 2, 1 is a bolt, 2 is a screw portion of the bolt 1, and 4 is a nut screwed to the screw portion 2. In the present invention, the nut 4 may be screwed so that the tip of the screw portion 2 protrudes.

また、図1及び図2において、本発明の一実施形態に係る落下防止具10は、ネジ部2の先端部分を含むナット4を保持する保持具11と、保持具11を収納保持する略円筒形状のキャップ具12と、保持具11とキャップ具12とを連結する紐状の連結具13と、を備え、ボルト1にナット4を螺合した状態でネジ部2の先端部分を含むナット4をボルト軸線方向に沿う抜け止め状態で保持することができる。尚、本実施例1においては、保持具11とキャップ具12とは、その軸線方向に沿う長さL1,L2は略同一、若しくはキャップ具12の長さL2の方が長く設定されている。   1 and 2, a fall prevention device 10 according to an embodiment of the present invention includes a holder 11 that holds a nut 4 including the tip portion of the screw portion 2, and a substantially cylinder that stores and holds the holder 11. A nut 4 including a cap member 12 having a shape and a string-like connector 13 for connecting the holder 11 and the cap member 12, and including a tip portion of the screw portion 2 in a state where the nut 4 is screwed onto the bolt 1. Can be held in a retaining state along the bolt axis direction. In the first embodiment, the holding tool 11 and the cap tool 12 are set so that the lengths L1 and L2 along the axial direction thereof are substantially the same or the length L2 of the cap tool 12 is longer.

(保持具11の構成)
保持具11は、薄肉(例えば、0.2〜0.3mm)の金属(例えば、アルミや銅)又は樹脂(例えば、ポリプロピレンやポリエチレンテレフタレート)から一体に成形されており、ネジ部2が貫通すると共に、図2(A)に示すように、ナット4のボルト頭部側面を内面で支持する支持部14と、ネジ先端部を含むナット4を収納する収納部15と、ネジ先端部を含むナット4を収納部15に挿入する開口部16と、を備えている。
(Configuration of holder 11)
The holder 11 is integrally formed from a thin-walled (for example, 0.2 to 0.3 mm) metal (for example, aluminum or copper) or a resin (for example, polypropylene or polyethylene terephthalate), and the screw portion 2 passes therethrough. In addition, as shown in FIG. 2A, a support portion 14 that supports the bolt head side surface of the nut 4 on the inner surface, a storage portion 15 that stores the nut 4 including the screw tip portion, and a nut that includes the screw tip portion. And an opening 16 for inserting 4 into the storage portion 15.

本実施例においては、保持具11は、例えば、断面正六角形状の筒体の少なくとも隣り合う二面を軸線方向に沿って切断したような形状を呈している。尚、ここでの切断とは、実際の加工技術としての切断を意味するものではなく、全体形状を説明するための便宜上のものであるが、実際に切断加工によって形成しても良い。   In the present embodiment, the holder 11 has, for example, a shape obtained by cutting at least two adjacent surfaces of a cylinder having a regular hexagonal cross section along the axial direction. Note that the cutting here does not mean cutting as an actual processing technique, but is a convenience for explaining the overall shape, but may be actually formed by cutting.

具体的には、収納部15は、図3に示すように、開口部16の開口端面の一部を形成するように互いに対向する一対の側壁17と、開口部16に対向して側壁17に連なる底壁18と、支持部14に対向するように側壁17の一端間に配置された端壁19と、を一体に備え、この側壁17と底壁18とによってナット4の隣り合う二面を除く四面を支持する。また、支持部14は、これら側壁17と底壁18の一端から軸線方向(中心)に向って屈曲された壁面から構成されている。尚、端壁19には、紐状の連結具13の一端を接続する接続穴19aが形成されている。   Specifically, as shown in FIG. 3, the storage unit 15 includes a pair of side walls 17 that face each other so as to form a part of the opening end surface of the opening 16, and a side wall 17 that faces the opening 16. A continuous bottom wall 18 and an end wall 19 disposed between one end of the side wall 17 so as to face the support portion 14 are integrally provided, and the two adjacent surfaces of the nut 4 are formed by the side wall 17 and the bottom wall 18. Support all four sides. Moreover, the support part 14 is comprised from the wall surface bent toward the axial direction (center) from the end of these side walls 17 and the bottom wall 18. As shown in FIG. The end wall 19 is formed with a connection hole 19a for connecting one end of the string-like connector 13.

(キャップ具12の構成)
キャップ具12は、薄肉(例えば、0.2〜0.3mm)の金属(例えば、アルミや銅)又は樹脂(例えば、ポリプロピレン、ポリエチレンテレフタレート、塩ビ等)から略円筒形状に一体に成形されており、その内径はナット4の最大径と略一致している。これにより、ナット4を収納した状態の保持具11をキャップ具12の内部に挿入した際に、保持具11がキャップ具12から抜け難い収納保持状態とすることができる。また、キャップ具12には、図4に示すように、軸線方向に沿い且つ両端に跨るスリット20と、その一端に軸線方向(中心)に向って屈曲されて保持具11の奥行き方向のストッパとして機能する端壁21と、スリット20とは反対側の端壁21を軸線方向沿って切起こし状に突出させた舌片22と、が形成されている。尚、本実施例においては、舌片22に穴22aを形成することにより、連結具13の他端が接続される。
(Configuration of cap device 12)
The cap device 12 is integrally formed in a substantially cylindrical shape from a thin-walled (for example, 0.2 to 0.3 mm) metal (for example, aluminum or copper) or a resin (for example, polypropylene, polyethylene terephthalate, vinyl chloride, etc.). The inner diameter substantially coincides with the maximum diameter of the nut 4. Thereby, when the holder 11 in the state in which the nut 4 is stored is inserted into the cap tool 12, the holder 11 can be in a stored and held state in which the holder 11 is difficult to be removed from the cap tool 12. As shown in FIG. 4, the cap device 12 has a slit 20 extending in the axial direction and straddling both ends, and is bent at one end toward the axial direction (center) to serve as a stopper in the depth direction of the holder 11. A functioning end wall 21 and a tongue piece 22 in which the end wall 21 opposite to the slit 20 is cut and raised along the axial direction are formed. In the present embodiment, the other end of the coupler 13 is connected by forming a hole 22a in the tongue piece 22.

スリット20は、例えば、塑性変形可能な金属からキャップ具12を形成した場合、その内径を拡大・縮小調整することによりナット4の最大径との関係を略一致させ、キャップ具12による保持具11の保持力を増大させることができる。また、スリット20にナット4の角部を露出させることでキャップ具12による保持具11の保持力をより一層増大させることが可能となる。さらに、連結具13の保持具11側の端部はスリット20を通じてキャップ具12の内外に位置させることができることから、ボルト1およびナット4を取り外した後には、保持具11とキャップ具12とを見掛け上で分離させることができる。   For example, when the cap device 12 is formed from a plastically deformable metal, the slit 20 is made to substantially coincide with the maximum diameter of the nut 4 by adjusting the inner diameter of the cap device 12 to be enlarged or reduced. The holding force can be increased. Further, by exposing the corners of the nut 4 to the slit 20, it becomes possible to further increase the holding force of the holding tool 11 by the cap tool 12. Furthermore, since the end of the coupling tool 13 on the holding tool 11 side can be positioned inside and outside the cap tool 12 through the slit 20, after removing the bolt 1 and the nut 4, the holding tool 11 and the cap tool 12 are connected. It can be separated in appearance.

従って、ボルト1を所定の締結穴(図示せず)に挿入し、ナット4をそのボルト1に螺号させる際に、例えば、図5(A)に示すように、ボルト1とナット4とを保持した落下防止具10と、図5(B)に示すように、ナット4のみを保持した落下防止具10と、図5(C)に示すように、全くの空の落下防止具10(保持具11)とを容易に区別することができ、ボルト1にナット4を螺合させる際の作業性を向上することができる。   Accordingly, when the bolt 1 is inserted into a predetermined fastening hole (not shown) and the nut 4 is screwed onto the bolt 1, the bolt 1 and the nut 4 are held, for example, as shown in FIG. The fall prevention tool 10, the fall prevention tool 10 holding only the nut 4 as shown in FIG. 5 (B), and the completely empty fall prevention tool 10 (holding tool) as shown in FIG. 5 (C). 11) can be easily distinguished, and workability when the nut 4 is screwed onto the bolt 1 can be improved.

(使用例)
このような構成においては、図1に示すように、予めボルト1のネジ部2にナット4を螺合させておき、図2(A)に示すように、ネジ部2の先端部分を含むナット4を開口部16から収納部15に挿入する。
(Example of use)
In such a configuration, as shown in FIG. 1, a nut 4 is screwed into the screw portion 2 of the bolt 1 in advance, and the nut including the tip portion of the screw portion 2 as shown in FIG. 4 is inserted into the storage portion 15 through the opening 16.

この状態から、図2(B)に示すように、保持具11をキャップ具12に挿入し、端壁19を端壁21に突き当ててキャップ具12に保持具11を完全収納することにより、キャップ具12に保持具11を収納保持することができる。   From this state, as shown in FIG. 2 (B), the holder 11 is inserted into the cap tool 12, the end wall 19 is abutted against the end wall 21, and the holder 11 is completely stored in the cap tool 12. The holding tool 11 can be stored and held in the cap tool 12.

また、連結具13により作業者のベルト(図示せず)等に吊り下げることにより、ナット4が支持部14に当接した抜け止め状態でボルト1とナット4とを保持することができる。   Further, the bolt 1 and the nut 4 can be held in a retaining state in which the nut 4 is in contact with the support portion 14 by being hung on the operator's belt (not shown) or the like by the connector 13.

そして、所定の作業場では、ボルト1をナット4から抜き、所定の締結穴へと挿入する。この際、ボルト1は比較的大きな長尺物であることから、例え、作業者が絶縁手袋をしていても、作業中に過って落下させてしまうことは少ない。   At a predetermined work place, the bolt 1 is removed from the nut 4 and inserted into a predetermined fastening hole. At this time, since the bolt 1 is a relatively large long object, even if the worker is wearing insulating gloves, it is unlikely that the bolt 1 is dropped excessively during the work.

また、ナット4は、この状態では落下防止具10に収納されたままであるため、落下することはない。   Moreover, since the nut 4 is still accommodated in the fall prevention tool 10 in this state, it does not fall.

さらに、ナット4は、この落下防止具10に収納されたままネジ部2の先端部分が突出する程度にまで仮螺合させた後、キャップ具12から保持具11を抜き出して本螺合することにより、過って落下させてしまうことを抑制することができる。   Further, the nut 4 is temporarily screwed to the extent that the tip portion of the screw part 2 protrudes while being accommodated in the fall prevention tool 10, and then the holding tool 11 is extracted from the cap tool 12 and is finally screwed. Therefore, it is possible to suppress excessive dropping.

(応用例1)
ところで、保持具11は、例えば、図6及び図7に示すように、一つのボルト1に二つのナット4を螺合したダブルナット状態での収納保持も可能である。この際、上記実施例1と同一の保持具11及びキャップ具12を用いる場合には、ナット4の大きさを考慮してネジ部2の突出量を調整することで2つのナット4とネジ部2の先端部とを収納することが可能となるが、ダブルナット用に軸線方向に長い専用のものを用いても良い。
(Application 1)
By the way, as shown in FIGS. 6 and 7, for example, the holder 11 can be stored and held in a double nut state in which two nuts 4 are screwed into one bolt 1. At this time, when using the same holder 11 and cap 12 as in the first embodiment, the two nuts 4 and the screw portions are adjusted by adjusting the protruding amount of the screw portion 2 in consideration of the size of the nut 4. It is possible to store the two tip portions, but a dedicated one that is long in the axial direction may be used for the double nut.

(応用例2)
また、保持具11は、例えば、図8及び図9に示すように、被締結部(図示せず)に取り付けたボルト1と螺合状態のナット4がネジ部2から離脱する直前でナット4を保持具11に保持させた後に(図9(A))、ボルト1又はナット4の一方を回転させてナット4をネジ部2から離脱させ(図9(B))、被締結部からボルト1を離脱した後に再びナット4にボルト1を螺合する(図9(C))ことによって、使用済みのボルト・ナットを持ち歩くことも可能である。
(Application example 2)
Further, for example, as shown in FIGS. 8 and 9, the holder 11 has a nut 4 immediately before the bolt 4 attached to the fastened portion (not shown) and the nut 4 in a screwed state are detached from the screw portion 2. Is held by the holder 11 (FIG. 9A), one of the bolt 1 or the nut 4 is rotated to separate the nut 4 from the screw portion 2 (FIG. 9B), and the bolt is removed from the fastened portion. It is also possible to carry the used bolts and nuts by screwing the bolts 1 to the nuts 4 again after removing the nuts 1 (FIG. 9C).

[実施例2]
次に、本発明の一実施形態に係る実施例2の落下防止具について図10乃至図12を用いて説明する。
[Example 2]
Next, the fall prevention tool of Example 2 which concerns on one Embodiment of this invention is demonstrated using FIG. 10 thru | or FIG.

尚、本実施例2におけるキャップ具は上記実施例1で示したキャップ具12と同一のものを用いていることから、ここでは実施例1と同一の符号を付してその説明を省略する。   Since the cap device in the second embodiment is the same as the cap device 12 shown in the first embodiment, the same reference numerals as those in the first embodiment are used here, and the description thereof is omitted.

(全体構成)
図10及び図11において、本発明の一実施形態に係る落下防止具30は、ネジ部2の先端部分を含むナット4を保持する保持具31と、保持具31を収納保持する略円筒形状のキャップ具12と、保持具31とキャップ具12とを連結する紐状の連結具13と、を備え、ボルト1にナット4を螺合した状態でネジ部2の先端部分を含むナット4をボルト軸線方向に沿う抜け止め状態で保持することができる。尚、本実施例2においては、保持具31とキャップ具12とは、その軸線方向に沿う長さL1,L2は略同一、若しくはキャップ具12の長さL2の方が長く設定されている。
(overall structure)
10 and 11, a fall prevention device 30 according to an embodiment of the present invention has a holder 31 that holds a nut 4 including the tip portion of the screw portion 2, and a substantially cylindrical shape that stores and holds the holder 31. A cap member 12 and a string-like connector 13 that connects the holder 31 and the cap member 12, and the nut 4 including the tip portion of the screw portion 2 in a state where the nut 4 is screwed to the bolt 1. It can be held in a retaining state along the axial direction. In the second embodiment, the holding tool 31 and the cap tool 12 are set so that the lengths L1 and L2 along the axial direction thereof are substantially the same or the length L2 of the cap tool 12 is longer.

(保持具31の構成)
保持具31は、薄肉(例えば、0.2〜0.3mm)の金属(例えば、アルミや銅)又は樹脂(例えば、ポリプロピレンやポリエチレンテレフタレート)から一体に成形されており、ネジ部2が貫通すると共に、図11(A)に示すように、ナット4のボルト頭部側面を内面で支持する支持部34と、ネジ先端部を含むナット4を収納する収納部35と、を備えている。
(Configuration of holder 31)
The holder 31 is integrally formed from a thin-walled (for example, 0.2 to 0.3 mm) metal (for example, aluminum or copper) or a resin (for example, polypropylene or polyethylene terephthalate), and the screw portion 2 passes therethrough. In addition, as shown in FIG. 11A, a support portion 34 that supports the bolt head side surface of the nut 4 with an inner surface and a storage portion 35 that stores the nut 4 including the screw tip portion are provided.

本実施例においては、保持具31は、例えば、断面正六角形状の筒体の少なくとも隣り合う二面と対向する二面の各一部を軸線方向に沿って切断したような形状を呈している。尚、ここでの切断とは、実際の加工技術としての切断を意味するものではなく、全体形状を説明するための便宜上のものであるが、実際に切断加工によって形成しても良い。   In the present embodiment, for example, the holder 31 has a shape obtained by cutting each part of two surfaces facing at least two adjacent surfaces of a cylinder having a regular hexagonal cross section along the axial direction. . Note that the cutting here does not mean cutting as an actual processing technique, but is a convenience for explaining the overall shape, but may be actually formed by cutting.

具体的には、収納部35は、図12に示すように、互いに対向する一対の側壁37と、ナット4の対向する二面に対応する側壁37の一端間に配置された端壁39と、を一体に備え、一対の側壁37によってナット4の隣り合う二面を除く四面を挟持する。また、支持部34は、側壁37の一端から軸線方向(中心)に向って屈曲された壁面から構成されている。尚、端壁39には、紐状の連結具13の一端を接続する接続穴39aが形成されている。   Specifically, as shown in FIG. 12, the storage unit 35 includes a pair of side walls 37 facing each other, an end wall 39 disposed between one end of the side walls 37 corresponding to the two opposing surfaces of the nut 4, and Are integrally provided, and the four surfaces excluding two adjacent surfaces of the nut 4 are sandwiched by the pair of side walls 37. Further, the support portion 34 is constituted by a wall surface bent from one end of the side wall 37 toward the axial direction (center). The end wall 39 is formed with a connection hole 39a for connecting one end of the string-like connector 13.

これにより、保持具31は、ナット4の六面のうち、各三面に跨るようにナット4を挟持することができる。   Thereby, the holder 31 can clamp the nut 4 so as to straddle each of the six surfaces of the nut 4.

従って、ネジ部2の先端部分を含むナット4は、支持部34を開くことにより収納部35に収納することができ、図11(A)に示すように、このまま支持部34を閉じることによりナット4を挟持することができる。これにより、支持部34の隙間は実質的に開口部を兼用している。   Therefore, the nut 4 including the tip portion of the screw portion 2 can be stored in the storage portion 35 by opening the support portion 34, and as shown in FIG. 4 can be clamped. As a result, the gap between the support portions 34 substantially doubles as an opening.

そして、この状態から、図11(B)に示すように、保持具31をキャップ具12に挿入することにより、キャップ具12に保持具31を収納保持することができる。   From this state, as shown in FIG. 11B, the holder 31 can be stored and held in the cap 12 by inserting the holder 31 into the cap 12.

[実施例3]
次に、本発明の一実施形態に係る実施例3の落下防止具について図13乃至図16を用いて説明する。
[Example 3]
Next, the fall prevention tool of Example 3 which concerns on one Embodiment of this invention is demonstrated using FIG. 13 thru | or FIG.

(全体構成)
図13及び図14において、本発明の一実施形態に係る落下防止具40は、ネジ部2の先端部分を含むナット4を保持する保持具41と、保持具41を収納保持する略円筒形状のキャップ具42と、保持具41とキャップ具42とを連結する紐状の連結具13と、を備え、ボルト1にナット4を螺合(ワッシャ3を含む)した状態でネジ部2の先端部分を含むナット4をボルト軸線方向に沿う抜け止め状態で保持することができる。尚、本実施例3においては、保持具41とキャップ具42とは、その軸線方向に沿う長さL3,L4は、ワッシャ3の厚さに相当する分だけ保持具41の長さL3の方が長く設定されている。尚、上記実施例1で示した端壁19と端壁21との突き当てによる奥行き方向の位置決めは、本実施例においては不要であるため、保持具41の長さL3よりもキャップ具42の長さL4の方が長くても良い。
(overall structure)
13 and 14, a fall prevention device 40 according to an embodiment of the present invention includes a holder 41 that holds a nut 4 including the tip portion of the screw portion 2, and a substantially cylindrical shape that stores and holds the holder 41. A cap member 42, and a string-like connector 13 that connects the retainer 41 and the cap member 42, and the nut portion 4 is screwed onto the bolt 1 (including the washer 3). The nut 4 including can be held in a retaining state along the bolt axial direction. In the third embodiment, the holding tool 41 and the cap tool 42 have lengths L3 and L4 along the axial direction of the holding tool 41 and the cap tool 42 corresponding to the thickness of the washer 3, respectively. Is set longer. Note that the positioning in the depth direction by the abutment between the end wall 19 and the end wall 21 shown in the first embodiment is not necessary in this embodiment, and therefore, the cap tool 42 is longer than the length L3 of the holder 41. The length L4 may be longer.

(保持具41の構成)
保持具41は、薄肉(例えば、0.2〜0.3mm)の金属(例えば、アルミや銅)又は樹脂(例えば、ポリプロピレンやポリエチレンテレフタレート)から一体に成形されており、ネジ部2が貫通すると共に、図14(A)に示すように、ワッシャ3のボルト頭部側面を内面で支持する支持部44と、ネジ先端部を含むナット4を収納する収納部45と、ネジ先端部を含むナット4を収納部45に挿入する開口部46と、を備えている。
(Configuration of holder 41)
The holder 41 is integrally formed from a thin metal (for example, 0.2 to 0.3 mm) metal (for example, aluminum or copper) or a resin (for example, polypropylene or polyethylene terephthalate), and the screw portion 2 passes therethrough. In addition, as shown in FIG. 14A, a support portion 44 that supports the bolt head side surface of the washer 3 on the inner surface, a storage portion 45 that stores a nut 4 that includes a screw tip portion, and a nut that includes a screw tip portion. And an opening 46 for inserting 4 into the storage portion 45.

収納部45は、図15に示すように、ワッシャ3を収納保持するワッシャ収納保持部47と、ナット4およびネジ部2を収納保持するナット収納保持部48と、を備えている。   As shown in FIG. 15, the storage portion 45 includes a washer storage holding portion 47 that stores and holds the washer 3, and a nut storage holding portion 48 that stores and holds the nut 4 and the screw portion 2.

ワッシャ収納保持部47は、ワッシャ3の前面を支持部44で支持すると共に、ワッシャ3の外周の略半分を支持する周面49と、ワッシャ3の背面を支持する段差面50と、を備えている。   The washer storage and holding portion 47 includes a peripheral surface 49 that supports the front surface of the washer 3 by the support portion 44, supports substantially half of the outer periphery of the washer 3, and a step surface 50 that supports the back surface of the washer 3. Yes.

ナット収納保持部48は、段差面50の内側に位置し、開口部46の開口端面の一部を形成するように互いに対向する一対の側壁51と、開口部46に対向して側壁51に連なる底壁52と、支持部44に対向するように側壁51の一端間に配置された端壁53と、を一体に備え、ワッシャ3をワッシャ収納保持部47へ収納すると共に、ナット4とネジ部2の先端側をナット収納保持部48へ収納する。このとき、側壁51内面は、ナット4の対向する側面を支持し、底壁52内面は、ナット4の側面に隣接する下側の隣り合う二面を支持する。これによりナット4は、ナット収納保持部48に対して回転しない状態で保持される。
尚、端壁53には、紐状の連結具13の一端を接続する接続穴53aが形成されている。
The nut storage holding part 48 is located inside the step surface 50 and is connected to the pair of side walls 51 facing each other so as to form a part of the opening end face of the opening 46 and the side walls 51 facing the opening 46. A bottom wall 52 and an end wall 53 disposed between one end of the side wall 51 so as to face the support portion 44 are integrally provided, and the washer 3 is stored in the washer storage holding portion 47, and the nut 4 and the screw portion. 2 is housed in the nut housing holder 48. At this time, the inner surface of the side wall 51 supports the opposite side surfaces of the nut 4, and the inner surface of the bottom wall 52 supports two adjacent lower surfaces adjacent to the side surface of the nut 4. As a result, the nut 4 is held without rotating with respect to the nut storage holder 48.
The end wall 53 is formed with a connection hole 53a for connecting one end of the string-like connector 13.

(キャップ具42の構成)
キャップ具42は、薄肉(例えば、0.2〜0.3mm)の金属(例えば、アルミや銅)又は樹脂(例えば、ポリプロピレン、ポリエチレンテレフタレート、塩ビ等)から略円筒形状に一体に成形されており、その内径はナット収納保持部48の最大径と略一致している。これにより、ナット4とネジ部2を収納した状態のナット収納保持部48をキャップ具42の内部に挿入した際に、ナット収納保持部48がキャップ具42から抜け難い収納保持状態とすることができる。また、キャップ具42には、図16に示すように、軸線方向に沿い且つ両端に跨るスリット54と、一端側(挿入口)に位置してワッシャ収納保持部47の開放端を覆うことによりワッシャ収納保持部47に収納保持されないワッシャ3の外周の一部を支持するようにオーバーハングされた庇部55と、他端側(奥行き側)に突出された舌片56と、が形成されている。尚、本実施例においては、舌片56に穴56aを形成することにより、連結具13の他端が接続される。
(Configuration of cap device 42)
The cap device 42 is integrally formed in a substantially cylindrical shape from a thin-walled (for example, 0.2 to 0.3 mm) metal (for example, aluminum or copper) or a resin (for example, polypropylene, polyethylene terephthalate, vinyl chloride, etc.). The inner diameter is substantially the same as the maximum diameter of the nut storage holding portion 48. As a result, when the nut storage holding portion 48 in a state where the nut 4 and the screw portion 2 are stored is inserted into the cap device 42, the nut storage holding portion 48 is in a storage holding state in which it is difficult to be removed from the cap device 42. it can. Further, as shown in FIG. 16, the cap member 42 is provided with a washer by covering the slit 54 along the axial direction and straddling both ends, and covering the open end of the washer storage holding portion 47 located at one end side (insertion opening). A flange portion 55 that is overhanged so as to support a part of the outer periphery of the washer 3 that is not stored and held in the storage holding portion 47 and a tongue piece 56 that protrudes to the other end side (depth side) are formed. . In the present embodiment, the other end of the coupler 13 is connected by forming a hole 56a in the tongue piece 56.

(使用例)
このような構成においては、図13に示すように、予めボルト1のネジ部2にワッシャ3を挿入しておくと共にナット4を螺合させておき、図14(A)に示すように、ネジ部2の先端部分を含むナット4を開口部46から、ワッシャ収納保持部47にワッシャ3を、ナット収納保持部48にナット4とネジ部2を、それぞれ挿入する。
(Example of use)
In such a configuration, as shown in FIG. 13, a washer 3 is inserted in advance into the threaded portion 2 of the bolt 1 and the nut 4 is screwed together. As shown in FIG. The nut 4 including the tip portion of the portion 2 is inserted from the opening 46 into the washer storage holding portion 47, and the nut 4 and the screw portion 2 are inserted into the nut storage holding portion 48, respectively.

この状態から、図14(B)に示すように、ナット収納保持部48をキャップ具42に挿入し、ワッシャ収納保持部47の背面をキャップ具42の挿入口側の開口端(一端)に突き当ててナット収納保持部48を完全収納することにより、キャップ具42にナット収納保持部48を収納保持すると共に、ワッシャ3のワッシャ収納保持部47に収納保持されない外周一端を庇部55で支持する。   From this state, as shown in FIG. 14B, the nut storage holding portion 48 is inserted into the cap device 42, and the back surface of the washer storage holding portion 47 is pushed into the opening end (one end) of the cap device 42 on the insertion port side. By completely storing the nut storage holding portion 48 with the contact, the nut storage holding portion 48 is stored and held in the cap device 42, and the outer peripheral end that is not stored and held in the washer storage holding portion 47 of the washer 3 is supported by the flange portion 55. .

また、連結具13により作業者のベルト(図示せず)等に吊り下げることにより、ナット4が側壁51と底壁52に当接した抜け止め状態でボルト1とナット4とワッシャ3とを保持することができる。   In addition, the bolt 1, the nut 4, and the washer 3 are held in a state in which the nut 4 is in contact with the side wall 51 and the bottom wall 52 by being hung on the operator's belt (not shown) by the connecting tool 13. can do.

そして、所定の作業場では、作業者がボルト1をワッシャ3とナット4から抜き、所定の締結穴へと挿入する。この際、ボルト1は比較的大きな長尺物であることから、例え、作業者が絶縁手袋をしていても、作業中に過って落下させてしまうことは少ない。また、この状態では、ワッシャ3はワッシャ収納保持部47に保持され、ナット4はナット収納保持部48に保持されたままであるため、ワッシャ3やナット4が落下することはない。   Then, at a predetermined work place, an operator pulls out the bolt 1 from the washer 3 and the nut 4 and inserts it into a predetermined fastening hole. At this time, since the bolt 1 is a relatively large long object, even if the worker is wearing insulating gloves, it is unlikely that the bolt 1 is dropped excessively during the work. In this state, the washer 3 is held by the washer storage holding portion 47 and the nut 4 is held by the nut storage holding portion 48, so that the washer 3 and the nut 4 do not fall.

さらに、ナット4は、このナット収納保持部48に収納保持されたままネジ部2の先端部分が突出する程度にまで仮螺合させた後、キャップ具42から保持具41を抜き出して本螺合することにより、過って落下させてしまうことを抑制することができる。   Further, the nut 4 is temporarily screwed to the extent that the tip portion of the screw portion 2 protrudes while being stored and held in the nut storage and holding portion 48, and then the holder 41 is pulled out from the cap device 42 and finally screwed. By doing so, it is possible to suppress excessive dropping.

この際、ナット4は、ナット収納保持部48に保持されており、周方向に沿う回転や軸線方向に沿う移動が完全に規制されていることから、ネジ部2へ仮螺合する際の作業性が向上されている。   At this time, the nut 4 is held by the nut storage holding portion 48, and the rotation along the circumferential direction and the movement along the axial direction are completely restricted. Has been improved.

(変形例)
ところで、上記実施例3では、ナット収納保持部48にナット4とネジ部2の先端側を収納し、ワッシャ収納保持部47にワッシャ3を収納した例を示したが、図17に示すように、ワッシャ収納保持部47の周面49をナット4の隣り合う二面を除く四面を支持するように形成して、ワッシャ収納保持部47にナット4を収納し、ナット収納保持部48にはネジ部2の先端側のみを収納するように構成してもよい。尚、図17において、上記実施例3と機能的に同一の構成には、同一の符合を付してその説明を省略する。
(Modification)
In the third embodiment, the nut storage holding portion 48 stores the nut 4 and the distal end side of the screw portion 2, and the washer storage holding portion 47 stores the washer 3. However, as shown in FIG. The peripheral surface 49 of the washer storage holding portion 47 is formed so as to support four surfaces excluding two adjacent surfaces of the nut 4, the nut 4 is stored in the washer storage holding portion 47, and the nut storage holding portion 48 is screwed You may comprise so that only the front end side of the part 2 may be accommodated. In FIG. 17, the functionally same configuration as that of the third embodiment is denoted by the same reference numeral, and the description thereof is omitted.

[実施例効果]
このように、本発明の落下防止具10,30,40にあっては、薄肉軽量な金属又は樹脂から形成されてネジ部2の先端部分を含むナット4を保持する保持具11,31,41と、薄肉軽量な金属又は樹脂から形成されて保持具11,31,41を収納保持する略円筒形状のキャップ具12,42と、保持具11,31,41とキャップ具12,42とを連結する紐状の連結具13と、を備え、保持具11,31,41は、ボルト1のネジ部2が貫通し且つナット4のボルト頭部側面を内面で支持する支持部14,34,44と、ネジ部2の先端部分を含むナット4を収納する収納部15,35,45と、ネジ部2の先端部分を含むナット4を収納部15,35,45に挿入する開口部16,46と、を備え、連結具13は、保持具11,31,41をキャップ具12,42に収納した状態でネジ部2の先端側の端部に両端が連結されていることにより、軽量で必要な組数で足りることができ、作業者の持ち運びや作業時の負担を軽減することができる。
[Example effect]
As described above, in the fall prevention tools 10, 30, and 40 of the present invention, the holding tools 11, 31, and 41 that are formed of a thin and light metal or resin and hold the nut 4 including the tip portion of the screw portion 2. And a substantially cylindrical cap member 12, 42 that is formed of a thin and light metal or resin and stores and holds the holder 11, 31, 41, and the holder 11, 31, 41 and the cap member 12, 42 are connected And the holders 11, 31, and 41 have support portions 14, 34, and 44, through which the screw portion 2 of the bolt 1 passes and supports the bolt head side surface of the nut 4 on the inner surface. And accommodating portions 15, 35, 45 for accommodating the nut 4 including the tip portion of the screw portion 2, and openings 16, 46 for inserting the nut 4 including the tip portion of the screw portion 2 into the accommodating portions 15, 35, 45. And the connector 13 is provided with the holders 11 and 3. , 41 are housed in the cap members 12, 42, and both ends are connected to the end portion of the screw portion 2 so that the required number of sets can be reduced. The burden of time can be reduced.

1…ボルト
2…ネジ部
3…ワッシャ
4…ナット
10,30,40…落下防止具
11,31,41…保持具
12,42…キャップ具
13…連結具
14,34,44…支持部
15,35,45…収納部
16,46…開口部
17,37,51…側壁
18,52…底壁
19,21,39,53…端壁
19a,39a,53a…接続穴
20,54…スリット
22,56…舌片
22a,56a…穴
47…ワッシャ収納保持部
48…ナット収納保持部
49…周面
50…段差面
55…庇部
DESCRIPTION OF SYMBOLS 1 ... Bolt 2 ... Screw part 3 ... Washer 4 ... Nut 10, 30, 40 ... Fall prevention tool 11, 31, 41 ... Holding tool 12, 42 ... Cap tool 13 ... Connecting tool 14, 34, 44 ... Support part 15, 35, 45 ... Storage part 16, 46 ... Opening part 17, 37, 51 ... Side wall 18, 52 ... Bottom wall 19, 21, 39, 53 ... End wall 19a, 39a, 53a ... Connection hole 20, 54 ... Slit 22, 56 ... tongue piece 22a, 56a ... hole 47 ... washer storage holder 48 ... nut storage holder 49 ... peripheral surface 50 ... step surface 55 ... collar

Claims (4)

ボルトにナットを螺合した状態でボルトのネジ先端部を含むナットをボルト軸線方向に沿う抜け止め状態で保持する落下防止具であって、
薄肉軽量な金属又は樹脂から形成されてボルトのネジ先端部を含むナットを保持する保持具と、薄肉軽量な金属又は樹脂から形成されて前記保持具を収納保持する略円筒形状のキャップ具と、前記保持具と前記キャップ具とを連結する紐状の連結具と、を備え、
前記保持具は、ボルトのネジ部が貫通し且つナットのボルト頭部側面を内面で支持する支持部と、ネジ先端部を含むナットを収納する収納部と、ネジ先端部を含むナットを前記収納部に挿入する開口部と、を備え、
前記連結具は、前記保持具を前記キャップ具に収納した状態でネジ部先端側の端部に両端が連結されていることを特徴とする落下防止具。
A fall prevention tool for holding a nut including a screw tip of a bolt in a state where the nut is screwed to the bolt in a retaining state along the bolt axial direction,
A holder that holds a nut including a screw tip of a bolt formed from a thin and light metal or resin, and a substantially cylindrical cap that is formed from a thin and light metal or resin to store and hold the holder; and A string-like connecting tool for connecting the holding tool and the cap tool,
The holder includes a support portion through which a screw portion of a bolt penetrates and supports a bolt head side surface of the nut with an inner surface, a storage portion for storing a nut including a screw tip portion, and a nut including a screw tip portion. An opening to be inserted into the part,
A fall prevention tool characterized in that both ends of the coupling tool are coupled to the end portion on the distal end side of the screw portion in a state where the holding tool is housed in the cap tool.
前記キャップ具には、軸線方向に沿い且つ両端に跨るスリットが形成されていることを特徴とする請求項1に記載の落下防止具。   The fall prevention tool according to claim 1, wherein the cap tool is formed with a slit extending in the axial direction and straddling both ends. 前記収納部は、ナットを嵌合保持するナット収納保持部と、ワッシャを保持するワッシャ収納保持部と、を備えていることを特徴とする請求項1又は請求項2に記載の落下防止具。   The fall prevention tool according to claim 1 or 2, wherein the storage portion includes a nut storage holding portion that fits and holds a nut, and a washer storage holding portion that holds a washer. 前記キャップ具は、前記ワッシャ収納保持部の開放端を覆う庇状のワッシャ支持部と、前記ナット収納保持部のみを覆う略円筒形状のネジキャップ具と、を備えていることを特徴とする請求項3に記載の落下防止具。   The cap device includes a bowl-shaped washer support portion that covers an open end of the washer storage holding portion, and a substantially cylindrical screw cap device that covers only the nut storage holding portion. Item 4. The fall prevention device according to item 3.
JP2011080659A 2011-03-31 2011-03-31 Fall prevention tool Expired - Fee Related JP5312509B2 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014139468A (en) * 2013-01-21 2014-07-31 Sato Kensetsu Kogyo Kk Fall preventing device
JP5918428B1 (en) * 2015-09-18 2016-05-18 株式会社フクデン Fall prevention tool
CN111977171A (en) * 2020-07-20 2020-11-24 上海空间推进研究所 Spherical screwed joint component protection device of spacecraft

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Publication number Priority date Publication date Assignee Title
JP2005287168A (en) * 2004-03-29 2005-10-13 Tokyo Electric Power Co Inc:The Metal fitting for preventing fall of bolt
JP2009041741A (en) * 2007-08-10 2009-02-26 Tokyo Electric Power Co Inc:The Fall prevention tool
JP2012184808A (en) * 2011-03-07 2012-09-27 Sato Kensetsu Kogyo Co Ltd Holder for fall prevention

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Publication number Priority date Publication date Assignee Title
JP2005287168A (en) * 2004-03-29 2005-10-13 Tokyo Electric Power Co Inc:The Metal fitting for preventing fall of bolt
JP2009041741A (en) * 2007-08-10 2009-02-26 Tokyo Electric Power Co Inc:The Fall prevention tool
JP2012184808A (en) * 2011-03-07 2012-09-27 Sato Kensetsu Kogyo Co Ltd Holder for fall prevention

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014139468A (en) * 2013-01-21 2014-07-31 Sato Kensetsu Kogyo Kk Fall preventing device
JP5918428B1 (en) * 2015-09-18 2016-05-18 株式会社フクデン Fall prevention tool
CN111977171A (en) * 2020-07-20 2020-11-24 上海空间推进研究所 Spherical screwed joint component protection device of spacecraft
CN111977171B (en) * 2020-07-20 2022-09-13 上海空间推进研究所 Spherical screwed joint component protection device of spacecraft

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