JP4709182B2 - Fall prevention safety device - Google Patents

Fall prevention safety device Download PDF

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JP4709182B2
JP4709182B2 JP2007159183A JP2007159183A JP4709182B2 JP 4709182 B2 JP4709182 B2 JP 4709182B2 JP 2007159183 A JP2007159183 A JP 2007159183A JP 2007159183 A JP2007159183 A JP 2007159183A JP 4709182 B2 JP4709182 B2 JP 4709182B2
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safety device
main shaft
fall
rope
locking lid
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JP2008307283A (en
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治 森野
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Fujii Denko Co Ltd
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Fujii Denko Co Ltd
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本願は、高所作業者が墜落防止のために使用する親綱に連結する墜落防止用安全器に関するものである。   The present application relates to a fall-preventing safety device that is connected to a master rope used by an aerial worker to prevent a fall.

以前より法面作業において、図９に示すような墜落防止用安全器を、斜面に垂下された親綱に嵌合し、鉄筋の組立やコンクリートの吹き付け作業等を行っている。
作業者は、工具や資材を取るためや、作業位置を変えるために途中で横移動することがある。
この時、墜落防止用安全器を外して無胴綱状態となり、墜落災害が発生している。 In the slope work, the safety device for crash prevention as shown in FIG. 9 has been fitted to the master rope suspended from the slope to assemble the reinforcing bars and spray concrete.
An operator may move laterally in the middle in order to pick up tools and materials, or to change the work position.
At this time, the fall-preventing safety device was removed, and the car was in the state of a no-tull rope, causing a crash.

予め、もう１個の墜落防止用安全器を移動する方に垂下した親綱に取付け無胴綱状態にならないようにすれば良いのであるが、現行の墜落防止用安全器は大きく重いため、作業者が補助用にもう１個持参することは負担が大きく、現実に実施されていない。
また、現行の墜落防止用安全器は開閉機構も堅牢で片手操作ができず、煩雑である。
そこで、作業者が補助用として携帯できる小型・軽量な墜落防止用安全器を開発することが必要とされた。 It is only necessary to attach the other safety device for fall prevention to the main rope that is hung down in the direction of movement, so that it does not become the state of the unhulled rope, but the current safety device for fall prevention is large and heavy. It is difficult for a person to bring another one for assistance, and it is not actually implemented.
In addition, the current safety device for preventing a crash is troublesome because the opening / closing mechanism is robust and cannot be operated by one hand.
Therefore, it was necessary to develop a small and light fall-prevention safety device that can be carried by an operator for assistance.

開発にあたっては、図１０に示すような墜落防止用安全器があり、実公昭５７−３６２０４号、実公昭５７−５９１５８号公報で開示したものである。
この墜落防止用安全器は、鉄塔昇降時・定位置作業時に使用するもので、開閉機構も大きく、両手でもって親綱に取付け・取外しを行うものである。
実公昭５７−３６２０４号 実公昭５７−５９１５８号 In development, there is a fall prevention safety device as shown in FIG. 10, which is disclosed in Japanese Utility Model Publication Nos. 57-36204 and 57-59158.
This fall-prevention safety device is used when the tower is raised or lowered, and has a large opening / closing mechanism, and it can be attached to / detached from the master rope with both hands.
Shoko 57-36204 Shoko 57-59158

前記したように、法面作業時に、工具や資材をとるためや作業位置を変えるために途中で横移動することがあり、この時に主墜落防止用安全器を外して無胴綱状態となり、墜落災害が発生している。
よって、横移動時の無胴綱状態を防止するために、作業者の携帯の負担にならない小型・軽量・片手で開閉操作が可能な補助用の墜落防止用安全器を得て墜落災害を防止するものである。 As mentioned above, during the slope work, it may move sideways in order to take tools and materials or change the work position. A disaster has occurred.
Therefore, in order to prevent the state of the unfolded rope when moving sideways, a small, lightweight, auxiliary safety device that can be opened and closed with one hand to avoid the burden of the operator's carrying is obtained to prevent a crash. To do.

本願の補助用の墜落防止用安全器は、作業者の携帯の負担にならない従来よりも小型・軽量・片手で開閉操作が可能である。
具体的には、墜落防止用安全器本体の側片他側に取付軸５を垂直に設け、該取付軸５に係止蓋６と外れ止め金具７を遊嵌すると共に、押圧バネ８を嵌合し、常に係止蓋６と外れ止め金具７を本体側片に押圧し、係止蓋６に設けた係止穴９と、主軸３先端に設けた溝３２とが嵌合し、外れ止め金具７の先端部が主軸３端の下側に位置し、ロック状態となる構造である。 The auxiliary safety device for fall prevention of the present application is smaller, lighter, and can be opened and closed with one hand than the conventional one, which does not burden the operator.
Specifically, a mounting shaft 5 is provided vertically on the other side of the fall-preventing safety device body, and a locking lid 6 and a locking member 7 are loosely fitted to the mounting shaft 5 and a pressing spring 8 is fitted. The locking lid 6 and the locking metal fitting 7 are always pressed against the main body side piece, and the locking hole 9 provided in the locking lid 6 and the groove 32 provided at the tip of the main shaft 3 are fitted to prevent the locking lid 6 from coming off. The front end portion of the metal fitting 7 is located below the end of the main shaft 3 and is in a locked state.

以上のように、作業者の携帯の負担にならない小型・軽量であるため、作業者があらかじめ本品を持参することを厭わなくなった。
片手で開閉操作が可能であるため、使用中の墜落防止用安全器を外す前に本品を親綱にセットする行為を厭わなくなった。
よって、作業者の墜落災害を防止できる。 As described above, the small size and light weight that do not impose a burden on the operator's carrying, the operator is willing to bring this product in advance.
Because it can be opened and closed with one hand, it is no longer annoying to set this item on the master rope before removing the fall-preventing safety device.
Therefore, it is possible to prevent a worker's crash disaster.

本願の実施例を詳記すると、
図１に示すように、端面近似Ｕ字状のロープ挿通保持体１の対向する側片一側に、ロープ止め爪２１・ロープ結合環２２を有する梃子杆２の主軸３一端を蝶着３１し、側片他側に設けた開閉機構４で主軸３他端を嵌脱自在とした墜落防止用安全器において、側片他側に取付軸５を垂直に設け、該取付軸５に係止蓋６と外れ止め金具７を遊嵌すると共に、押圧バネ８を嵌合し、常に係止蓋６と外れ止め金具７を本体側片に押圧し、係止蓋６に設けた係止穴９と、主軸３先端に設けた溝３２とが嵌合し、外れ止め金具７の先端部が主軸３端の下側に位置し、ロック状態となる構造を有している。 Detailed examples of the present application:
As shown in FIG. 1, one end of a main shaft 3 of a lever rod 2 having a rope retaining claw 21 and a rope coupling ring 22 is hinged 31 on one side of the opposing side piece of the end face approximate U-shaped rope insertion holder 1. In the fall-preventing safety device in which the other end of the main shaft 3 is freely detachable by the opening / closing mechanism 4 provided on the other side of the side piece, a mounting shaft 5 is provided vertically on the other side of the side piece, 6 and the locking member 7 are loosely fitted, and a pressing spring 8 is fitted, and the locking lid 6 and the locking member 7 are always pressed against the body side piece, and the locking hole 9 provided in the locking lid 6 The groove 32 provided at the front end of the main shaft 3 is fitted, and the front end portion of the stopper metal fitting 7 is located below the end of the main shaft 3 so that the lock state is established.

開閉機構４は、略Ｔ字状の係止蓋６と、同じく略Ｔ字状の外れ止め金具７と、押圧バネ８が取付軸５に嵌合され、本体上下にガイド１１が設けられ、ガイド１１間に配置されている。
係止蓋６と外れ止め金具７は、押圧バネ８で本体側に押圧されている。
係止蓋６と外れ止め金具７は、長穴が設けられ押圧バネ８に抗して本体側とは逆の方向に開くことができる。
外れ止め金具７は、係止蓋６に押圧されており、下側を本体側に押すとシーソーのように上側先端が回動し、係止蓋６より離反し、主軸３が係止している場合は、主軸３先端より離れ、主軸３の下方への回動を許すものである。 The opening / closing mechanism 4 includes a substantially T-shaped locking lid 6, a substantially T-shaped locking member 7, and a pressing spring 8 fitted to the mounting shaft 5. 11 is arranged.
The locking lid 6 and the stopper metal fitting 7 are pressed to the main body side by a pressing spring 8.
The locking lid 6 and the stopper metal fitting 7 are provided with elongated holes and can be opened in a direction opposite to the main body side against the pressing spring 8.
The stopper metal 7 is pressed by the locking lid 6. When the lower side is pressed to the main body side, the upper end is rotated like a seesaw and separated from the locking lid 6, and the main shaft 3 is locked. In the case where the main shaft 3 is located, it is separated from the tip of the main shaft 3 and allows the main shaft 3 to rotate downward.

本願の墜落防止用安全器を開放する場合は、外れ止め金具７の下側を本体側に押し、上側先端が係止蓋６より回動離反（図５（２））させる。続いて、主軸３を下方へ回動させ（図６（３））、係止蓋６と溝３２の係止を解き、親指で係止蓋６を本体より離反（図６（４））させれば開放（図７（５））できるものである。   When opening the fall-preventing safety device of the present application, the lower side of the stopper metal fitting 7 is pushed toward the main body side, and the upper end is turned away from the locking lid 6 (FIG. 5 (2)). Subsequently, the main shaft 3 is rotated downward (FIG. 6 (3)), the locking of the locking lid 6 and the groove 32 is released, and the locking lid 6 is separated from the main body with the thumb (FIG. 6 (4)). If so, it can be opened (FIG. 7 (5)).

本願の墜落防止用安全器を閉鎖する場合は、ロープ挿通保持体１のＵ字底に親綱Ｒを嵌合し、梃子杆２の主軸３を本体側に回動させれば、主軸３先端部が係止蓋６を押し広げながら回動し、係止蓋６の係止穴９に主軸３先端が嵌合し、手を緩めれば係止穴９上部に主軸３の溝３２が係止し、続いて、外れ止め金具７が押圧バネ８の力により、外れ止め金具７の先端部が主軸３先端下部に位置し、ロック状態となる。この閉鎖動作は、梃子杆４の主軸３を押し下げる操作だけで、係止蓋６と外れ止め金具７が自動的にロックする。即ち、本機構では、ワンタッチ操作で２重の安全機構が作動する。 When closing the fall-preventing safety device of the present application, if the master rope R is fitted to the U-shaped bottom of the rope insertion holding body 1 and the main shaft 3 of the lever rod 2 is rotated to the main body side, the tip of the main shaft 3 When the hand is loosened, the groove 32 of the main shaft 3 is engaged with the upper portion of the locking hole 9. Then, the anti-separation fitting 7 is positioned by the force of the pressing spring 8 so that the distal end of the anti-separation fitting 7 is located at the lower end of the tip of the main shaft 3 and is locked. In this closing operation, only the operation of pushing down the main shaft 3 of the lever rod 4 automatically locks the locking lid 6 and the stopper metal fitting 7. That is, in this mechanism, a double safety mechanism is activated by a one-touch operation.

本願の墜落防止用安全器は、開放操作が片手で容易に行えるが、開放するために係止蓋・外れ止め金具・梃子杆のそれぞれに加える負荷方向が同一でないため、何かに誤って接触しても外れることがなく、安全性が高い。
また、開閉機構自体が少ない部品点数で構成され、主軸の周辺の狭い範囲に部品が集中的に配置できる構造であり、従来品に対して、大幅に軽量・小型化が可能となった。 The fall-prevention safety device of this application can be easily opened with one hand, but because the load direction applied to each of the locking lid, detachment stopper, and insulator is not the same for opening, it accidentally contacts something. Even if it does not come off, it is highly safe.
In addition, the opening / closing mechanism itself has a small number of parts, and the structure allows the parts to be concentrated in a narrow area around the spindle, making it possible to significantly reduce the weight and size of the conventional product.

本願墜落防止用安全器の斜視図。The perspective view of the safety device for fall prevention of this application. 本願墜落防止用安全器の正面図。The front view of the safety device for fall prevention of this application. 本願墜落防止用安全器の平面図。The top view of the safety device for fall prevention of this application. 本願墜落防止用安全器の右側面図。The right view of the safety device for fall prevention of this application. 本願墜落防止用安全器の開放手順図１。Opening procedure of safety device for preventing crash of the present application FIG. 本願墜落防止用安全器の開放手順図２。Opening procedure of safety device for preventing crash of the present application FIG. 本願墜落防止用安全器の開放手順図３。Opening procedure of safety device for preventing crash of the present application FIG. 本願墜落防止用安全器のセット正面図。The set front view of the safety device for fall prevention of this application. 主墜落防止用安全器の斜視図。The perspective view of the safety device for main fall prevention. 従来の墜落防止用安全器の斜視図。The perspective view of the conventional safety device for fall prevention.

符号の説明Explanation of symbols

１ ロープ挿通保持体
11 ガイド
２ 梃子杆
21 ロープ止め爪
22 ロープ結合環
３ 主軸
31 蝶着
32 溝
４ 開閉機構
５ 取付軸
６ 係止蓋
７ 外れ止め金具
８ 押圧バネ
９ 係止穴
Ｒ 親綱
Ｈ 主墜落防止用安全器 1 Rope insertion holder
11 Guide 2
21 Rope pawl
22 Rope coupling ring 3 Main shaft
31 Butterfly
32 Groove 4 Opening / closing mechanism 5 Mounting shaft 6 Locking lid 7 Retaining stopper 8 Pressing spring 9 Locking hole R Master rope H Safety device for preventing main fall

Claims (1)

端面近似Ｕ字状のロープ挿通保持体１の対向する側片一側に、ロープ止め爪２１・ロープ結合環２２を有する梃子杆２の主軸３一端を蝶着３１し、側片他側に設けた開閉機構４で主軸３他端を嵌脱自在とした墜落防止用安全器において、側片他側に取付軸５を垂直に設け、該取付軸５に係止蓋６と外れ止め金具７を遊嵌すると共に、押圧バネ８を嵌合し、常に係止蓋６と外れ止め金具７を本体側片に押圧し、係止蓋６に設けた係止穴９と、主軸３先端に設けた溝３２とが嵌合し、外れ止め金具７の先端部が主軸３端の下側に位置し、ロック状態となる構造を特徴とする墜落防止用安全器。   One end of the main shaft 3 of the lever rod 2 having the rope retaining claw 21 and the rope coupling ring 22 is hinged 31 on one side of the opposing side piece of the end face approximate U-shaped rope insertion holder 1 and provided on the other side of the side piece. In the fall-preventing safety device in which the other end of the main shaft 3 can be freely fitted and removed by the opening / closing mechanism 4, a mounting shaft 5 is provided vertically on the other side of the side piece, and a locking lid 6 and a stopper metal fitting 7 are provided on the mounting shaft 5. In addition to loosely fitting, the pressing spring 8 is fitted, the locking lid 6 and the stopper metal fitting 7 are always pressed against the main body side piece, the locking hole 9 provided in the locking lid 6 and the tip of the main shaft 3 are provided. A fall-preventing safety device characterized by a structure in which the groove 32 is fitted and the distal end portion of the stopper metal fitting 7 is located below the end of the main shaft 3 and is locked.
JP2007159183A 2007-06-15 2007-06-15 Fall prevention safety device Active JP4709182B2 (en)

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JP4709182B2 true JP4709182B2 (en) 2011-06-22

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115162861B (en) * 2022-08-26 2023-08-15 三门核电有限公司 Safety belt padlock

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5759158Y2 (en) * 1978-02-22 1982-12-17
JPS5736204Y2 (en) * 1978-05-26 1982-08-10
JPS6045049A (en) * 1983-08-23 1985-03-11 Toshiba Corp Semiconductor device
JPH0341971A (en) * 1989-07-08 1991-02-22 Tokyu Constr Co Ltd Safety band hook fitting tool
JPH0335268U (en) * 1989-08-17 1991-04-05
JP2004194823A (en) * 2002-12-17 2004-07-15 Fujii Denko Co Ltd Buckle for safety belt

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