JP6789098B2 - Fall prevention device - Google Patents

Fall prevention device Download PDF

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JP6789098B2
JP6789098B2 JP2016250204A JP2016250204A JP6789098B2 JP 6789098 B2 JP6789098 B2 JP 6789098B2 JP 2016250204 A JP2016250204 A JP 2016250204A JP 2016250204 A JP2016250204 A JP 2016250204A JP 6789098 B2 JP6789098 B2 JP 6789098B2
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air tube
core material
air
charging
vehicle
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JP2018102444A (en
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庄司 柚木
庄司 柚木
義和 松谷
義和 松谷
悟志 林田
悟志 林田
幸輝 大村
幸輝 大村
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West Japan Railway Co
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Description

本発明は、鉄道車両の検修を行う場所における屋根上点検足場と車両屋根との隙間からの人又は物の落下を防止するための落下防止装置に関する。 The present invention relates to a fall prevention device for preventing a person or an object from falling from a gap between a roof inspection scaffold and a vehicle roof at a place where a railway vehicle is inspected.

図５に示すように、鉄道車両の検修（検査・修繕）を行う場所には、車両３（鉄道車両）の屋根上を点検するための屋根上点検足場２が設けられている。作業員は、屋根上点検足場２から車両屋根３１の上に乗り移って検修作業を行う。屋根上点検足場２は、車両３との接触を避けるために建築限界外に設けられる。建築限界とは、車両限界の外側に必要最小限の余裕空間を加えた、建築物に対する限界である（非特許文献１の番号１２１０２）。車両限界とは、車両が平たん直線軌道上に停止しているとき、車両のどの部分も超えてはならない車両に対する限界である（非特許文献１の番号１２１０１）。屋根上点検足場２は、建築限界を遵守するため、車両屋根３１との間に隙間Ｇがある。この隙間Ｇの大きさは、車両３によって異なり、隙間Ｇを最適化することは困難である。このため、屋根上点検足場２と車両屋根３１との隙間Ｇから作業員が落下するおそれがある。また、この隙間Ｇから工具等の物が落下して、下にいる作業員に当たるおそれがある。 As shown in FIG. 5, a roof inspection scaffold 2 for inspecting the roof of the vehicle 3 (railway vehicle) is provided at a place where the railway vehicle is inspected (inspected / repaired). The worker transfers from the roof inspection scaffold 2 onto the vehicle roof 31 to perform the inspection and repair work. The roof inspection scaffold 2 is provided outside the construction limit in order to avoid contact with the vehicle 3. The building gauge is a limit for a building in which the minimum necessary margin space is added to the outside of the vehicle gauge (No. 12102 of Non-Patent Document 1). The vehicle gauge is a gauge for a vehicle that must not exceed any part of the vehicle when the vehicle is stopped on a flat straight track (No. 12101 of Non-Patent Document 1). The roof inspection scaffold 2 has a gap G between it and the vehicle roof 31 in order to comply with the construction limit. The size of the gap G differs depending on the vehicle 3, and it is difficult to optimize the gap G. Therefore, there is a possibility that the worker may fall from the gap G between the roof inspection scaffold 2 and the vehicle roof 31. In addition, an object such as a tool may fall from this gap G and hit a worker underneath.

このような隙間を塞ぐための車両用点検作業装置が知られている（特許文献１参照）。この装置では、屋根上点検足場は、可動式の足場板（通路形成体及び転落防止体）を有し、その足場板で車両屋根との隙間を塞ぐ。しかしながら、このような装置では、足場板の収納を忘れ、車両が動いた時に足場板が車両屋根や屋根上機器に当たって損傷するおそれがある。 A vehicle inspection work device for closing such a gap is known (see Patent Document 1). In this device, the on-roof inspection scaffold has a movable scaffold plate (passage forming body and fall prevention body), and the scaffold plate closes the gap with the vehicle roof. However, in such a device, the scaffolding board may be forgotten to be stored, and when the vehicle moves, the scaffolding board may hit the vehicle roof or the equipment on the roof and be damaged.

特開平６−３２９００３号公報Japanese Unexamined Patent Publication No. 6-329003

ＪＩＳ Ｅ ４００１：２０１１「鉄道車両−用語」JIS E 4001: 2011 "Railway Vehicles-Terms"

本発明は、上記問題を解決するものであり、屋根上点検足場と車両屋根との隙間からの人又は物の落下を防止するとともに、車両を損傷し難い落下防止装置を提供することを目的とする。 An object of the present invention is to solve the above problems, and to provide a fall prevention device that prevents a person or an object from falling from a gap between a roof inspection scaffold and a vehicle roof and that does not easily damage the vehicle. To do.

本発明の落下防止装置は、鉄道車両の検修を行う場所における屋根上点検足場と車両屋根との隙間からの人又は物の落下を防止するためのものであって、屋根上点検足場の車両側端部に沿って設けられた長尺状のエアチューブと、前記エアチューブ内に設けられた長尺状の芯材と、前記エアチューブを充気及び排気するための充排気装置とを備え、前記エアチューブは、充気されたとき、径方向に膨張して前記隙間を塞ぎ、前記充排気装置によって排気されたとき、径方向に収縮して前記隙間を生じさせ、前記芯材は、前記充排気装置によらずに前記エアチューブ内の空気が抜けたとき、前記隙間を縮小することを特徴とする。 The fall prevention device of the present invention is for preventing a person or an object from falling from a gap between a roof inspection scaffold and a vehicle roof at a place where a railroad vehicle is inspected, and is a vehicle of the roof inspection scaffold. It is provided with a long air tube provided along the side end portion, a long core material provided in the air tube, and a charging / exhausting device for filling and exhausting the air tube. When the air tube is filled with air, it expands in the radial direction to close the gap, and when exhausted by the charging / exhausting device, the air tube contracts in the radial direction to form the gap. When the air in the air tube is released regardless of the charging / exhausting device, the gap is reduced.

この落下防止装置において、前記エアチューブは、膨張したときに円筒形であり、前記充排気装置によって車両から遠い側から充排気され、前記芯材は、一方向に長い断面形状を有し、前記エアチューブが前記充排気装置によって充気されるとき、断面視で、前記芯材は、膨張した前記エアチューブ内で倒れ、前記エアチューブが前記充排気装置によって排気されるとき、前記芯材は、前記エアチューブ内で起立し、前記充排気装置によらずに前記エアチューブ内の空気が抜けるとき、前記芯材は、前記エアチューブ内で倒れたままであることが好ましい。 In this fall prevention device, the air tube is cylindrical when expanded, is charged and exhausted from a side far from the vehicle by the charging / exhausting device, and the core material has a long cross-sectional shape in one direction. When the air tube is filled by the charge / exhaust device, in cross-sectional view, the core material collapses in the expanded air tube, and when the air tube is exhausted by the charge / exhaust device, the core material is It is preferable that the core material remains collapsed in the air tube when the core material stands up in the air tube and the air in the air tube is released regardless of the charging / exhausting device.

この落下防止装置において、前記芯材は、楕円の断面形状を有し、前記エアチューブが前記充排気装置によって充気されたとき、前記芯材は、前記楕円の長径方向が略水平になり、前記エアチューブが前記充排気装置によって排気されたとき、前記芯材は、前記長径方向が略鉛直になり、前記充排気装置によらずに前記エアチューブ内の空気が抜けたとき、前記芯材は、前記長径方向が略水平のままであることが好ましい。 In this fall prevention device, the core material has an elliptical cross-sectional shape, and when the air tube is filled with the air charge / exhaust device, the core material becomes substantially horizontal in the major axis direction of the ellipse. When the air tube is exhausted by the charge / exhaust device, the core material becomes substantially vertical in the major axis direction, and when the air in the air tube is released regardless of the charge / exhaust device, the core material It is preferable that the major axis direction remains substantially horizontal.

この落下防止装置において、前記エアチューブは、ゴム製であり、前記芯材は、発泡樹脂製であることが好ましい。 In this fall prevention device, it is preferable that the air tube is made of rubber and the core material is made of foamed resin.

本発明の落下防止装置によれば、エアチューブは、充気されたとき、車両屋根との隙間を塞ぐので、人及び物の落下が防止される。エアチューブは、空気で膨張するものであるので、万一、車両と接触した状態で車両が動いても車両を損傷し難い。また、エアチューブは、充排気装置によって排気されたとき、車両屋根との隙間を生じさせるので、車両が動いても車両を損傷しない。さらに、充排気装置によらずにエアチューブ内の空気が抜けたとき、芯材が車両屋根との隙間を縮小するので、人及び大きな物の落下が防止される。 According to the fall prevention device of the present invention, when the air tube is filled with air, the air tube closes the gap with the roof of the vehicle, so that people and objects are prevented from falling. Since the air tube expands with air, it is unlikely to damage the vehicle even if the vehicle moves in contact with the vehicle. Further, since the air tube creates a gap with the vehicle roof when exhausted by the charge / exhaust device, the vehicle is not damaged even if the vehicle moves. Further, when the air in the air tube is released regardless of the charging / exhausting device, the core material reduces the gap with the vehicle roof, so that people and large objects are prevented from falling.

本発明の一実施形態に係る落下防止装置におけるエアチューブを充気したときの断面構成図。FIG. 3 is a cross-sectional configuration diagram when the air tube in the fall prevention device according to the embodiment of the present invention is filled. 同装置のエアチューブの斜視図。A perspective view of the air tube of the device. 同装置におけるエアチューブを排気したときの断面構成図。Cross-sectional configuration diagram when the air tube in the device is exhausted. 同装置におけるエアチューブ内の空気が抜けたときの断面構成図。Cross-sectional configuration diagram when the air in the air tube of the device is released. 鉄道車両の検修を行う場所における屋根上点検足場と車両屋根との隙間を示す図。The figure which shows the gap between the roof inspection scaffolding and the vehicle roof at the place where the railroad vehicle is inspected.

本発明の一実施形態に係る落下防止装置を図１乃至図４を参照して説明する。図１に示すように、落下防止装置１は、鉄道車両３の検修を行う場所における屋根上点検足場２と車両屋根３１との隙間Ｇからの人又は物の落下を防止するためのものである。落下防止装置１は、エアチューブ４と、芯材５と、充排気装置６とを備える。図２に示すように、エアチューブ４は長尺状である。このエアチューブ４は、屋根上点検足場２の車両側端部２１に沿って設けられる（図１参照）。芯材５は、長尺状であり、エアチューブ４内に設けられる（図２参照）。充排気装置６は、エアチューブ４を充気（空気充填）及び排気（空気排出）するための装置である（図１参照）。 The fall prevention device according to the embodiment of the present invention will be described with reference to FIGS. 1 to 4. As shown in FIG. 1, the fall prevention device 1 is for preventing a person or an object from falling from the gap G between the roof inspection scaffold 2 and the vehicle roof 31 at the place where the railway vehicle 3 is inspected. is there. The fall prevention device 1 includes an air tube 4, a core material 5, and a charge / exhaust device 6. As shown in FIG. 2, the air tube 4 has an elongated shape. The air tube 4 is provided along the vehicle side end 21 of the roof inspection scaffold 2 (see FIG. 1). The core material 5 has a long shape and is provided in the air tube 4 (see FIG. 2). The charging / exhausting device 6 is a device for charging (filling air) and exhausting (exhausting air) the air tube 4 (see FIG. 1).

上記の各構成をさらに詳述する。エアチューブ４の材料は、例えば、ゴムであり、より具体的には一般的なゴムボートの素材である。エアチューブ４は、内部の空気圧に応じて、径方向に膨張・収縮する。エアチューブ４は、膨張したときに円筒形である（図２参照）。在来鉄道で用いる場合、エアチューブ４の直径は、膨張したとき、約３５０ｍｍである。エアチューブ４の長さは、例えば、約１７００ｍｍである。エアチューブ４は、充排気カプラ４１と、点検用充排気バルブ４２と、取付金具４３とを有する。充排気カプラ４１は、充排気装置６からの配管６１が接続される。エアチューブ４は、充排気装置６によって車両から遠い側から充排気される。点検用充排気バルブ４２は、エアチューブ４の点検時に充排気装置６を介さずに充排気するためのバルブである。取付金具４３は、エアチューブ４を所定位置に取り付けるための金具である。エアチューブ４は、取付金具４３を介して鋼材２２に取付けられる（図１参照）。鋼材２２は、屋根上点検足場２の車両側端部２１の下側に設けられている。 Each of the above configurations will be described in more detail. The material of the air tube 4 is, for example, rubber, and more specifically, a general rubber boat material. The air tube 4 expands and contracts in the radial direction according to the internal air pressure. The air tube 4 is cylindrical when inflated (see FIG. 2). When used in a conventional railway, the diameter of the air tube 4 is about 350 mm when expanded. The length of the air tube 4 is, for example, about 1700 mm. The air tube 4 has a charge / exhaust coupler 41, an inspection charge / exhaust valve 42, and a mounting bracket 43. The charge / exhaust coupler 41 is connected to the pipe 61 from the charge / exhaust device 6. The air tube 4 is charged and exhausted from the side far from the vehicle by the charging / exhausting device 6. The inspection charge / exhaust valve 42 is a valve for charging / exhausting the air tube 4 without going through the charging / exhausting device 6 when inspecting the air tube 4. The mounting bracket 43 is a bracket for mounting the air tube 4 at a predetermined position. The air tube 4 is attached to the steel material 22 via the mounting bracket 43 (see FIG. 1). The steel material 22 is provided below the vehicle side end portion 21 of the on-roof inspection scaffold 2.

芯材５は、それ自身が軽量で、人の体重程度の荷重に耐えるものが望ましい。芯材５の材料は、例えば、発泡樹脂であり、より具体的には発泡スチロールである。芯材５は、一方向に長い断面形状を有し、例えば、楕円の断面形状を有する楕円柱形である。芯材５は、長手方向に複数に分割して構成してもよい。 It is desirable that the core material 5 is lightweight by itself and can withstand a load of about the weight of a person. The material of the core material 5 is, for example, a foamed resin, and more specifically, styrofoam. The core material 5 has a long cross-sectional shape in one direction, and is, for example, an elliptical pillar shape having an elliptical cross-sectional shape. The core material 5 may be divided into a plurality of pieces in the longitudinal direction.

充排気装置６は、圧縮空気が外部から供給されるとともに、真空発生器（真空ポンプ）、３位置電磁弁、減圧弁、スピードコントローラ等を有する。圧縮空気は、エアチューブ４の充気に用いられる。真空発生器は、エアチューブ４を排気する。３位置電磁弁は、充気、停止、排気の動作を切り替える。減圧弁は、エアチューブ４の充気圧力を調整する。スピードコントローラは、エアチューブ４の排気時における真空引き量（真空圧）を調整する。 The charging / exhausting device 6 is supplied with compressed air from the outside, and has a vacuum generator (vacuum pump), a three-position solenoid valve, a pressure reducing valve, a speed controller, and the like. Compressed air is used to fill the air tube 4. The vacuum generator exhausts the air tube 4. The 3-position solenoid valve switches between charge, stop, and exhaust operations. The pressure reducing valve adjusts the filling pressure of the air tube 4. The speed controller adjusts the evacuation amount (vacuum pressure) when the air tube 4 is exhausted.

上記のように構成された落下防止装置１の動作について説明する。作業員が屋根上点検足場２から車両屋根３１の上に乗り移って検修作業を行う場合、エアチューブ４が充気される。エアチューブ４は、充気されたとき、径方向に膨張して隙間Ｇを塞ぐ（図１参照）。エアチューブ４が充排気装置６によって充気されるとき、断面視で、芯材５は、膨張したエアチューブ４内で倒れる。矢印で示すように、エアチューブ４が、充排気装置６によって車両から遠い側から充気されるので、芯材５が充気の気流によって押されるからである。芯材５は、一方向に長い断面形状を有するので、倒れた状態が物理的に安定な状態である。芯材５が楕円の断面形状を有する場合、芯材５は、その楕円の長径方向が略水平になる。 The operation of the fall prevention device 1 configured as described above will be described. When the worker transfers from the roof inspection scaffold 2 onto the vehicle roof 31 to perform the inspection and repair work, the air tube 4 is filled with air. When the air tube 4 is filled with air, it expands in the radial direction to close the gap G (see FIG. 1). When the air tube 4 is filled with the air charge / exhaust device 6, the core material 5 collapses in the expanded air tube 4 in a cross-sectional view. This is because, as shown by the arrow, the air tube 4 is filled from the side far from the vehicle by the charging / exhausting device 6, so that the core material 5 is pushed by the filled air flow. Since the core material 5 has a long cross-sectional shape in one direction, the collapsed state is physically stable. When the core material 5 has an elliptical cross-sectional shape, the core material 5 is substantially horizontal in the major axis direction of the ellipse.

車両３が動く場合、その前にエアチューブ４が排気される。図３に示すように、エアチューブ４は、充排気装置６によって排気されたとき、径方向に収縮して隙間Ｇを生じさせる。このとき、芯材５は、エアチューブ４内で起立する。矢印で示すように、エアチューブ４が、充排気装置６によって車両３から遠い側から排気されるので、芯材５が排気の気流によって引かれるからである。芯材５が楕円の断面形状を有する場合、芯材５は、楕円の長径方向が略鉛直になる。 When the vehicle 3 moves, the air tube 4 is exhausted before that. As shown in FIG. 3, when the air tube 4 is exhausted by the charging / exhausting device 6, the air tube 4 contracts in the radial direction to form a gap G. At this time, the core material 5 stands up in the air tube 4. This is because, as shown by the arrow, the air tube 4 is exhausted from the side far from the vehicle 3 by the charging / exhausting device 6, so that the core material 5 is pulled by the exhaust air flow. When the core material 5 has an elliptical cross-sectional shape, the core material 5 is substantially vertical in the major axis direction of the ellipse.

落下防止装置１において、充排気装置６によらずにエアチューブ４内の空気が抜けることは、異常動作であり、例えば、エアチューブ４がパンクしたときに起きる。図４に示すように、エアチューブ４は、充排気装置６によらずにエアチューブ４内の空気が抜けたとき、隙間Ｇを縮小する。芯材５は、一方向に長い断面形状を有し、倒れた状態が物理的に安定な状態であるので、充排気装置６によらずにエアチューブ４内の空気が抜けたとき、倒れたままである。芯材５が楕円の断面形状を有する場合、芯材５は、楕円の長径方向が略水平のままである。なお、芯材５は、エアチューブ４内で倒れた状態で隙間Ｇを塞ぐように長径が設定されることがさらに望ましい。 In the fall prevention device 1, it is an abnormal operation that the air in the air tube 4 is released regardless of the charging / exhausting device 6, and occurs, for example, when the air tube 4 is punctured. As shown in FIG. 4, the air tube 4 reduces the gap G when the air in the air tube 4 is released regardless of the charging / exhausting device 6. Since the core material 5 has a long cross-sectional shape in one direction and is in a physically stable state in a fallen state, it falls down when the air in the air tube 4 is released regardless of the charging / exhausting device 6. Up to. When the core material 5 has an elliptical cross-sectional shape, the core material 5 remains substantially horizontal in the major axis direction of the ellipse. It is more desirable that the core material 5 has a major axis set so as to close the gap G in a state of being tilted in the air tube 4.

このように、本実施形態の落下防止装置１によれば、エアチューブ４は、充気されたとき、車両屋根３１との隙間Ｇを塞ぐので、人及び物の落下が防止される。エアチューブ４は、空気で膨張するものであるので、万一、車両３と接触した状態で車両３が動いても車両３を損傷し難い。また、エアチューブ４は、充排気装置６によって排気されたとき、車両屋根３１との隙間Ｇを生じさせるので、車両３が動いても車両３を損傷しない。さらに、充排気装置６によらずにエアチューブ４内の空気が抜けたとき、芯材５が車両屋根３１との隙間Ｇを縮小するので、人及び大きな物の落下が防止される。 As described above, according to the fall prevention device 1 of the present embodiment, when the air tube 4 is filled with air, the air tube 4 closes the gap G with the vehicle roof 31, so that people and objects are prevented from falling. Since the air tube 4 expands with air, even if the vehicle 3 moves in contact with the vehicle 3, the vehicle 3 is unlikely to be damaged. Further, since the air tube 4 creates a gap G with the vehicle roof 31 when exhausted by the charging / exhausting device 6, the vehicle 3 is not damaged even if the vehicle 3 moves. Further, when the air in the air tube 4 is released regardless of the charging / exhausting device 6, the core material 5 reduces the gap G with the vehicle roof 31, so that people and large objects are prevented from falling.

なお、本発明は、上記の実施形態の構成に限られず、発明の要旨を変更しない範囲で種々の変形が可能である。例えば、芯材５の断面形状は、楕円に限定されず、八角形等の多角形であってもよい。 The present invention is not limited to the configuration of the above embodiment, and various modifications can be made without changing the gist of the invention. For example, the cross-sectional shape of the core material 5 is not limited to an ellipse, and may be a polygon such as an octagon.

１ 落下防止装置
２ 屋根上点検足場
３ 車両（鉄道車両）
３１ 車両屋根
４ エアチューブ
５ 芯材
６ 充排気装置
Ｇ 屋根上点検足場と車両屋根との隙間 1 Fall prevention device 2 Roof inspection scaffolding 3 Vehicles (railroad vehicles)
31 Vehicle roof 4 Air tube 5 Core material 6 Charge / exhaust device G Gap between roof inspection scaffolding and vehicle roof

Claims (4)

鉄道車両の検修を行う場所における屋根上点検足場と車両屋根との隙間からの人又は物の落下を防止するための落下防止装置であって、
屋根上点検足場の車両側端部に沿って設けられた長尺状のエアチューブと、
前記エアチューブ内に設けられた長尺状の芯材と、
前記エアチューブを充気及び排気するための充排気装置とを備え、
前記エアチューブは、充気されたとき、径方向に膨張して前記隙間を塞ぎ、前記充排気装置によって排気されたとき、径方向に収縮して前記隙間を生じさせ、
前記芯材は、前記充排気装置によらずに前記エアチューブ内の空気が抜けたとき、前記隙間を縮小することを特徴とする落下防止装置。 It is a fall prevention device to prevent people or objects from falling through the gap between the roof inspection scaffolding and the vehicle roof at the place where railway vehicles are inspected.
A long air tube provided along the vehicle side end of the roof inspection scaffolding,
With the long core material provided in the air tube,
A charging / exhausting device for filling and exhausting the air tube is provided.
When the air tube is filled, it expands in the radial direction to close the gap, and when exhausted by the charging / exhausting device, the air tube contracts in the radial direction to generate the gap.
The core material is a fall prevention device characterized in that the gap is reduced when the air in the air tube is released regardless of the charging / exhausting device. 前記エアチューブは、膨張したときに円筒形であり、前記充排気装置によって車両から遠い側から充排気され、
前記芯材は、一方向に長い断面形状を有し、
前記エアチューブが前記充排気装置によって充気されるとき、断面視で、前記芯材は、膨張した前記エアチューブ内で倒れ、
前記エアチューブが前記充排気装置によって排気されるとき、前記芯材は、前記エアチューブ内で起立し、
前記充排気装置によらずに前記エアチューブ内の空気が抜けるとき、前記芯材は、前記エアチューブ内で倒れたままであることを特徴とする請求項１に記載の落下防止装置。 The air tube is cylindrical when expanded, and is charged and exhausted from the side far from the vehicle by the charging / exhausting device.
The core material has a long cross-sectional shape in one direction.
When the air tube is filled by the charge / exhaust device, in cross-sectional view, the core material collapses in the expanded air tube.
When the air tube is exhausted by the charge / exhaust device, the core material stands up in the air tube.
The fall prevention device according to claim 1, wherein the core material remains collapsed in the air tube when the air in the air tube is released regardless of the charging / exhaust device. 前記芯材は、楕円の断面形状を有し、
前記エアチューブが前記充排気装置によって充気されたとき、前記芯材は、前記楕円の長径方向が略水平になり、
前記エアチューブが前記充排気装置によって排気されたとき、前記芯材は、前記長径方向が略鉛直になり、
前記充排気装置によらずに前記エアチューブ内の空気が抜けたとき、前記芯材は、前記長径方向が略水平のままであることを特徴とする請求項２に記載の落下防止装置。 The core material has an elliptical cross-sectional shape and has an elliptical cross-sectional shape.
When the air tube is filled with air by the charging / exhausting device, the core material becomes substantially horizontal in the major axis direction of the ellipse.
When the air tube is exhausted by the charging / exhausting device, the core material becomes substantially vertical in the major axis direction.
The fall prevention device according to claim 2, wherein when the air in the air tube is released regardless of the charging / exhausting device, the core material remains substantially horizontal in the major axis direction. 前記エアチューブは、ゴム製であり、
前記芯材は、発泡樹脂製であることを特徴とする請求項１乃至請求項３のいずれか一項に記載の落下防止装置。




The air tube is made of rubber and
The fall prevention device according to any one of claims 1 to 3, wherein the core material is made of foamed resin.
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