JP3682636B2

JP3682636B2 - Railroad vehicle safety equipment

Info

Publication number: JP3682636B2
Application number: JP16057997A
Authority: JP
Inventors: 吉夫田上; 義則桑原; 努武田; 真克前田
Original assignee: Aichi Corp
Current assignee: Aichi Corp
Priority date: 1997-06-03
Filing date: 1997-06-03
Publication date: 2005-08-10
Anticipated expiration: 2017-06-03
Also published as: JPH10329517A

Description

【０００１】
【発明の属する技術分野】
本発明は、道路および軌道（鉄道用レール）上を走行可能な軌陸車の安全装置に関する。
【０００２】
【従来の技術】
軌陸車は、トラックをベースとして構成されており、車体の前後左右の４箇所にタイヤ車輪（道路走行用車輪）を有している。さらに、車体の前後左右の４箇所には、鉄輪（軌道走行用車輪）が下方への張り出し作動および上方への格納作動自在に取り付けられている。そして、車体上には、例えば、高所作業装置等の作業装置が設けられている。
【０００３】
このように構成された軌陸車は、軌道上を走行する際は鉄輪を下方へ張り出し、車体を軌道上で支持させ、鉄輪を駆動させることにより車体を軌道上で走行させることができる。また、その他に鉄輪を張り出す際に、後方のタイヤを軌道上に接する程度にして、これらのタイヤを駆動させて車体を走行させる場合もある。この鉄輪、あるいはタイヤの駆動は、車体の前方にあるキャビンの中に軌陸車を高速で軌道上を移動させる走行操作装置を設けており、作業者はキャビン内でこの走行操作装置を操作することにより、車体を高速で走行させることが可能となっている。
【０００４】
ところで、これらのような軌陸車は、車体上に高所作業装置を設けており、この高所作業装置は、作業者が搭乗する作業台と、この作業台を上方へ昇降可能とする昇降装置により構成される。作業台には、操作装置が設けられており、作業台に搭乗した作業者がこの操作装置を操作することにより、昇降装置の昇降作動を可能としている。また、作業台には軌陸車を低速で軌道上を移動させる操作装置が設けられており、作業台上の作業者は、この操作装置を操作することにより車体を低速で走行させることが可能となっている。
【０００５】
【発明が解決しようとする課題】
しかしながら、このような軌陸車では、キャビン内で走行操作を行う際に、作業台、あるいは昇降装置が上昇している状態であったり、作業台に別の作業者が搭乗している状態で高速走行を行うと、作業台、あるいは昇降装置が電柱等周囲の構造物に干渉したり、作業台に搭乗した作業者が振り落とされたりする危険性があるという問題がある。
【０００６】
本発明は、このような問題に鑑みてなされたものであり、作業台、あるいは昇降装置が格納していない状態であったり、あるいは作業台に作業者が搭乗している状態であるときに軌道上での高速走行を防止することができる軌陸車の安全装置を提供することを目的としている。
【０００７】
【課題を解決するための手段】
上記の目的を達成するために、本発明の軌陸車の安全装置は、車体の前後左右に道路走行用車輪（例えば、実施形態におけるタイヤ車輪３）と軌道走行用車輪（例えば、実施形態における鉄輪４）を設け、車体上に上方へ昇降可能な昇降装置（例えば、実施形態におけるブーム１２）を設け、昇降装置の上端に作業台を取り付け、昇降装置を昇降作動させることにより作業台を車体に対して昇降可能にし、車体の前方に設けたキャビン内に軌道走行用車輪を駆動操作する走行操作手段を設けるとともに、作業台に昇降装置の昇降操作および軌道走行用車輪の駆動操作の少なくとも一方の操作を行う電気により作動する操作装置を設けた軌陸車に用いられ、作業台および昇降装置の少なくとも一方が格納位置にないことを検出する格納検出手段と、操作装置の電源を入り切りする電源スイッチと、電源スイッチにより操作装置の電源が入れられていることを検出する電源検出手段と、格納検出手段および電源検出手段の少なくとも一方の検出信号により、作業台または昇降装置が格納位置にないか、あるいは操作装置の電源が入れられているときに、キャビン内での走行制御手段による軌道走行用車輪の駆動を規制する走行規制手段を備えている。
【０００８】
また、本発明の軌陸車の安全装置は、車体の前後左右にそれぞれ道路走行用車輪（例えば、実施形態におけるタイヤ車輪３）と軌道走行用車輪（例えば、実施形態における鉄輪４）を設け、車体上に上方へ昇降可能な昇降装置（例えば、実施形態におけるブーム１２）を設け、昇降装置の上端に作業台を取り付け、昇降装置を昇降作動させることにより作業台を車体に対して昇降可能にし、車体の前方に設けたキャビン内に道路走行用車輪を駆動操作する走行操作手段を設けるとともに、作業台に昇降装置の昇降操作および道路走行用車輪の駆動操作の少なくとも一方の操作を行う電気により作動する操作装置を設けた軌陸車にも用いられ、作業台および昇降装置の少なくとも一方が格納位置にないことを検出する格納検出手段と、操作装置の電源を入り切りする電源スイッチと、電源スイッチにより操作装置の電源が入れられていることを検出する電源検出手段と、キャビン内での走行操作手段による道路走行用車輪の駆動操作を行うことを検出する走行操作検出手段と、格納検出手段および電源検出手段の少なくとも一方の検出信号と、走行操作検出手段の検出信号により、作業台または昇降装置が格納位置にないか、あるいは操作装置の電源が入れられているときに、走行操作手段により道路走行用車輪の駆動操作を行うと作動する警報装置とを備えている。この警報装置は、作業者に警報を発するブザーおよび軌道を走行するためのキャビン内での走行操作手段による道路走行用車輪の駆動を規制する規制装置の少なくとも一方により構成されている。
【０００９】
これらの軌陸車の安全装置においては、作業台もしくは昇降装置が格納位置にない場合、および作業台に設けた昇降装置の操作装置の電源が入っていない場合のいずれか一方であるときに、軌道上での走行作動を防止することができる。
【００１０】
【発明の実施の形態】
以下、本発明の好ましい実施形態について図を参照して説明する。
図３に示すように、本発明の安全装置を備えた軌陸車１は、トラックをベースとして構成されており、車体２の前後左右の４箇所に取り付けられたタイヤ車輪（道路走行用車輪）３によって道路上を走行することができる。さらに、車体２の前後左右の４箇所には、鉄輪（軌道走行用車輪）４が車体２に上下方向に揺動自在に支持された鉄輪支持部材４ａに回転自在に取り付けられている。
【００１１】
鉄輪支持部材４ａは、鉄輪張出格納用油圧シリンダ５の伸縮作動により揺動作動するようになっており、この鉄輪支持部材４ａを揺動作動させることにより、鉄輪４を下方に張り出したり上方に格納したりできるようになっている。軌陸車１は、鉄輪４を張り出した状態で車体２をレールＲ上に載置し、鉄輪駆動用油圧モータ（油圧モータ）（図示せず）により鉄輪４を駆動して、レールＲ上を自走可能となっている。車体２前方のキャビン６には、この鉄輪４を駆動制御する走行操作装置７が設けられており、キャビン６に搭乗した作業者がこの走行操作装置７を操作することにより、鉄輪４を駆動させ、車体２をレールＲ上で走行可能としている。
【００１２】
一方、車体２上には、高所作業装置１０が設けられている。この高所作業装置１０は、車体２に対して水平旋回作動自在に取り付けられた旋回台１１と、この旋回台１１の上部に起伏作動自在に取り付けられ、入れ子式に伸縮作動が自在なブーム（昇降装置）１２と、このブーム１２の先端に取り付けられた作業者搭乗用の作業台１３とから構成されている。
【００１３】
作業台１３には、ブーム１２の作動を操作するジョイスティック等の操作装置８を設けており、作業台１３に搭乗した作業者は、この操作装置８を操作することによりブーム１２を作動させ、作業台１３を任意の位置へ移動させることが可能である。
なお、この操作装置８は、電気により作動制御するようになっており、この操作装置８を作動させるための電源としてバッテリ９を作業台１３に設けている。そして、この操作装置８には、電源スイッチ１４が設けられており、この高所作業装置１０を使用しない場合に、作業者は電源スイッチ１４をＯＦＦにしてバッテリ９の消費を抑えている。
【００１４】
このように構成された軌陸車１では、高所作業装置１０を使用して、レールＲ上の張架線やトロリ線等の鉄道設備の工事や点検等を行う場合は、作業台１３上に搭乗した作業者が操作装置８の電源スイッチ１４をＯＮにして操作装置８を操作し、ブーム１２の旋回・起伏・伸縮等の作動を行って作業台１３を所望高所に移動し、作業台１３に搭乗した作業者により、軌陸車１上の張架線やトロリ線等の鉄道設備の工事等を行わせる。
【００１５】
作業が終わり、軌陸車１を軌道上で移動する場合は、作業者はブーム１２を所定の格納位置（車体２上に設けたブームレスト２０上）に移動させた後、操作装置８の電源スイッチ１４をＯＦＦにしてから作業台１３より降りてキャビン６内に搭乗し、走行操作装置７を操作して鉄輪４を駆動させることで、軌道上を走行することができる。
【００１６】
以上のような軌陸車１において、ブーム１２を所定の格納位置に格納していないか、または作業台１３上に作業者が搭乗している場合には、軌道上での走行が行われないようにするために、本発明に係る安全装置が設けられている。
【００１７】
この安全装置の構成を図１に示している。
ブーム１２が格納位置にないことを検出する格納検出手段１５を車体２に設けたブームレスト２０に設け、ブーム１２が車体２上に設けたブームレスト２０上に格納されていない場合に、信号を発生する。また、作業台１３上の操作装置８の電源スイッチ１４がＯＮになっていることを検出する電源検出手段１６をこの電源スイッチ１４の近傍に設け、作業台１３上の操作装置８の電源スイッチ１４がＯＮになっている場合に、信号を発生する。
【００１８】
ここで、車体２には、鉄輪４の駆動を規制する走行規制手段１７を設けており、この走行規制手段１７は、例えば、鉄輪４を駆動させる油圧モータへの作動油を遮断するバルブや、あるいは鉄輪４を駆動させる駆動信号を電気的に遮断するリレーより構成される。この走行規制手段１７は、格納検出手段１５および電源検出手段１６の少なくとも一方の検出信号により鉄輪４の駆動を規制する。
【００１９】
この安全装置により、ブーム１２が格納位置にない場合、または作業台１３上の操作装置８の電源スイッチ１４がＯＮになっている場合に、鉄輪４の駆動を規制するので、軌道上での走行作動を防止することができる。
【００２０】
なお、ここでは電源検出手段１６としてブーム１２の作動を操作する操作装置８の電源がＯＮになっていることを検出しているが、作業台１３に鉄輪４等を駆動させる操作装置がある場合その電源がＯＮになっていることを検出してもよい。
【００２１】
また、別の実施例として、軌陸車１を軌道上で走行させる場合、鉄輪４を油圧モータ等で駆動するのではなく、後方のタイヤ車輪３を軌道上に押し付け、これらのタイヤ車輪３を駆動することにより、軌道上を走行可能とした軌陸車１については、図２のような安全装置を用いればよい。
【００２２】
図２に示す安全装置の構成は、ブーム１２が格納位置にないことを検出する格納検出手段１５と、作業台１３上の操作装置８の電源スイッチ１４がＯＮになっていることを検出する電源検出手段１６と、キャビン６内での走行操作を行うことを検出する走行操作検出手段１８と、作業者に警報を発するブザー等の警報装置１９により構成されている。
【００２３】
走行操作検出手段１８は、作業者がタイヤ車輪３を駆動しようとキャビン６内の走行操作装置７を操作したことを検出して信号を発生する。
【００２４】
警報装置１９は、格納検出手段１５および電源検出手段１６の少なくとも一方の検出信号と走行操作検出手段１８により作動を行う。この警報装置１９は、キャビン６内に設けられ、走行操作を行った作業者に警報を行うブザーであり、作業者は、この警報を聞くことにより走行操作を止めて走行を停止させる。また、この警報装置１９は、作業者に警報を行うだけでなく、走行作動の駆動源であるエンジンを燃料の供給を止めることにより停止させる等、直接走行を規制してもよい。
【００２５】
また、これまで軌陸車１の高所作業装置１０として、ブーム１２式の高所作業装置１０について述べてきたが、シザースタイプ等、垂直昇降式の高所作業車についても同様に適応でき、この場合、昇降装置の格納検出手段１５は、昇降装置を移動して作業台１３を最下方に位置させたことを検出すればよい。
【００２６】
【発明の効果】
以上のように、本発明に係る軌陸車の安全装置においては、昇降装置が格納状態にない場合、または作業台上に作業者が搭乗している場合すなわち作業台上に設けた操作装置の電源をＯＮにしている場合のいずれか一方であるときに、軌道上での高速走行作動を防止することができ、昇降装置が軌道上の他の構造物と干渉したり、作業台上に搭乗している作業者が走行の振動等により転落する危険性を防止することができる。
【図面の簡単な説明】
【図１】本発明の軌陸車の安全装置の構成を示すブロック図である。
【図２】本発明の軌陸車の安全装置の第２の構成を示すブロック図である。
【図３】本発明の安全装置を備える軌陸車の構成を示す側面図である。
【符号の説明】
１軌陸車
２車体
３タイヤ車輪（道路走行用車輪）
４鉄輪（軌道走行用車輪）
６キャビン
８操作装置
１２ブーム（昇降装置）
１３作業台
１５格納検出手段
１６電源検出手段
１７走行規制手段
１８走行操作検出手段
１９警報装置[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a safety device for a track-and-rail vehicle capable of traveling on a road and a track (railway rail).
[0002]
[Prior art]
The track-and-rail vehicle is configured based on a truck, and has tire wheels (road driving wheels) at four positions on the front, rear, left and right sides of the vehicle body. Further, iron wheels (orbital running wheels) are attached to four locations on the front, rear, left, and right sides of the vehicle body so as to be extended downward and retracted upward. On the vehicle body, for example, a working device such as an aerial work device is provided.
[0003]
The track-and-rail vehicle configured as described above can run on the track by driving the iron wheel by projecting the iron wheel downward, supporting the vehicle body on the track, and driving the iron wheel. In addition, when the iron wheel is extended, there is a case where the rear tire is brought into contact with the track and the tire is driven to run the vehicle body. To drive the iron wheel or tire, a traveling operation device is provided in the cabin in front of the vehicle body to move the tracked vehicle on the track at high speed, and the operator operates the traveling operation device in the cabin. This makes it possible to drive the vehicle body at high speed .
[0004]
By the way, such railroad vehicles are provided with an aerial work device on the vehicle body, and this aerial work device includes a work table on which an operator gets on and an elevating device that can move the work table upward and downward. Consists of. The work table is provided with an operation device, and an operator who is on the work table operates the operation device to enable the lifting device to move up and down. In addition, an operating device is provided on the workbench to move the railroad vehicle on the track at a low speed, and an operator on the workbench can operate the vehicle at a low speed by operating this operating device. It has become.
[0005]
[Problems to be solved by the invention]
However, in such a railway vehicle, when the traveling operation is performed in the cabin, the work table or the lifting device is in a raised state, or another worker is on the work table at a high speed. When traveling, there is a problem in that there is a risk that the work table or the lifting device may interfere with surrounding structures such as a utility pole, or the operator who gets on the work table may be shaken off.
[0006]
The present invention has been made in view of such problems, and the track is used when the work table or the lifting device is not stored, or when the operator is on the work table. An object of the present invention is to provide a safety device for a track-rail vehicle that can prevent high-speed traveling.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the safety device for a track-and-rail vehicle according to the present invention includes road traveling wheels (for example, tire wheels 3 in the embodiment) and track traveling wheels (for example, iron wheels in the embodiments ) on the front, rear, left and right sides of the vehicle body. 4) , a lifting device (for example, the boom 12 in the embodiment) that can be lifted up and down is provided on the vehicle body, a work table is attached to the upper end of the lifting device, and the lifting device is moved up and down to move the work table to the vehicle body. A traveling operation means for driving the track traveling wheel is provided in a cabin provided in front of the vehicle body , and at least one of the lifting operation of the lifting device and the driving operation of the track traveling wheel is provided on the work table . Storage detection means for detecting that at least one of the work table and the lifting device is not in the storage position, which is used in a rail vehicle provided with an operation device that is operated by electricity to perform the operation A power switch for turning on and off the power supply of the operating device, and a power detection means for detecting that the power of the operating device is being input by the power switch, at least one of the detection signals of the storage detecting means and the power detecting means, work When the platform or the lifting device is not in the retracted position, or when the power of the operation device is turned on, the vehicle is provided with travel restriction means for restricting driving of the track traveling wheels by the travel control means in the cabin.
[0008]
Moreover, the safety device for a track-and-rail vehicle of the present invention is provided with road traveling wheels (for example, tire wheels 3 in the embodiment) and track traveling wheels (for example, iron wheels 4 in the embodiments) on the front, rear, left and right sides of the vehicle body, respectively. An elevating device (for example, the boom 12 in the embodiment) that can be raised and lowered upward is provided, a work table is attached to the upper end of the elevating device, and the elevating device is moved up and down so that the work table can be raised and lowered relative to the vehicle body. In the cabin provided in front of the vehicle body, a traveling operation means for driving the road traveling wheel is provided, and the work table is operated by electricity for performing at least one of the lifting operation of the lifting device and the driving operation of the road traveling wheel. also used in the road-rail vehicle provided with an operating device for a storage detecting means for at least one of the working table and the lifting device detects absence in the retracted position, the operating device Detection and power switch for switching on and off the power, and power detection means for detecting that the power of the operating device is being input by the power switch, to perform a driving operation of a road road wheels according to the running operation means in the cabin According to the traveling operation detecting means, the detection signal of at least one of the storage detecting means and the power detecting means, and the detection signal of the traveling operation detecting means , the work table or the lifting device is not in the retracted position, or the operating device is turned on. And an alarm device that is activated when a driving operation of the road driving wheel is performed by the driving operation means . This alarm device is configured by at least one of a buzzer that issues an alarm to an operator and a restriction device that restricts driving of road traveling wheels by traveling operation means in a cabin for traveling on a track.
[0009]
In these railroad vehicle safety devices, when the platform or the lifting device is not in the retracted position, or when the operating device of the lifting device provided on the platform is not turned on, the track It is possible to prevent the above running operation.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
As shown in FIG. 3, the track-and-rail vehicle 1 equipped with the safety device of the present invention is configured with a truck as a base, and tire wheels (road driving wheels) 3 attached at four locations on the front, rear, left and right of the vehicle body 2. Can drive on the road. Furthermore, at four locations on the front and rear, left and right of the vehicle body 2, iron wheels (orbital wheels) 4 are rotatably attached to iron wheel support members 4 a that are supported by the vehicle body 2 so as to be swingable in the vertical direction.
[0011]
The iron ring support member 4a is oscillated by expansion and contraction of the hydraulic cylinder 5 for storing and extending the iron ring. By oscillating the iron ring support member 4a, the iron ring 4 is extended downward or upward. It can be stored. The track-and-rail vehicle 1 places the vehicle body 2 on the rail R with the iron wheel 4 overhanging, drives the iron wheel 4 by an iron wheel driving hydraulic motor (hydraulic motor) (not shown), and automatically moves the rail R on the rail R. It is possible to run. The cabin 6 in front of the vehicle body 2 is provided with a travel operation device 7 that drives and controls the iron wheel 4, and an operator who has boarded the cabin 6 operates the travel operation device 7 to drive the iron wheel 4. The vehicle body 2 can travel on the rail R.
[0012]
On the other hand, an aerial work device 10 is provided on the vehicle body 2. The aerial work device 10 includes a swivel base 11 that is attached to the vehicle body 2 so as to be capable of horizontal swiveling, and a boom (not shown) that is attached to the upper part of the swivel base 11 so as to be able to undulate and telescope. (Elevating device) 12 and an operator boarding work bench 13 attached to the tip of the boom 12.
[0013]
The work table 13 is provided with an operation device 8 such as a joystick for operating the operation of the boom 12. An operator who has boarded the work table 13 operates the operation device 8 to operate the boom 12, and It is possible to move the base 13 to an arbitrary position.
The operating device 8 is controlled by electricity, and a battery 9 is provided on the work table 13 as a power source for operating the operating device 8. The operation device 8 is provided with a power switch 14. When the aerial work device 10 is not used, the operator turns off the power switch 14 to suppress the consumption of the battery 9.
[0014]
In the railway vehicle 1 configured as described above, when the work or inspection of railway facilities such as a stretched line or a trolley line on the rail R is performed using the aerial work device 10, the vehicle is boarded on the work table 13. The worker who has turned on the power switch 14 of the operation device 8 operates the operation device 8 to move the work table 13 to a desired height by performing operations such as turning, raising and lowering and extending the boom 12. An operator who has boarded the railway works on the railway facilities such as a stretched line and a trolley line on the rail vehicle 1.
[0015]
When the work is completed and the railcar 1 is moved on the track, the operator moves the boom 12 to a predetermined storage position (on the boom rest 20 provided on the vehicle body 2), and then turns on the power switch of the operating device 8. It is possible to travel on the track by turning 14 off and getting off the work table 13 and boarding in the cabin 6 and operating the traveling operation device 7 to drive the iron wheel 4.
[0016]
In the track-and-rail vehicle 1 as described above, when the boom 12 is not stored in a predetermined storage position or when an operator is on the work table 13, the vehicle does not travel on the track. Therefore, a safety device according to the present invention is provided.
[0017]
The structure of this safety device is shown in FIG.
A storage detection means 15 for detecting that the boom 12 is not in the storage position is provided in the boom rest 20 provided on the vehicle body 2, and a signal is output when the boom 12 is not stored on the boom rest 20 provided on the vehicle body 2. Occur. Further, a power detection means 16 for detecting that the power switch 14 of the operating device 8 on the work table 13 is ON is provided in the vicinity of the power switch 14, and the power switch 14 of the operating device 8 on the work table 13 is provided. A signal is generated when is turned on.
[0018]
Here, the vehicle body 2 is provided with a travel restricting means 17 that restricts the driving of the iron wheel 4. The travel restricting means 17 is, for example, a valve that shuts off hydraulic oil to a hydraulic motor that drives the iron wheel 4, Or it is comprised from the relay which interrupts | blocks the drive signal which drives the iron wheel 4 electrically. The travel restricting means 17 restricts the driving of the iron wheel 4 by the detection signal of at least one of the storage detecting means 15 and the power supply detecting means 16.
[0019]
This safety device regulates the driving of the iron wheel 4 when the boom 12 is not in the retracted position or when the power switch 14 of the operating device 8 on the work table 13 is turned on. The operation can be prevented.
[0020]
Here, it is detected that the power supply of the operation device 8 for operating the operation of the boom 12 is turned on as the power supply detection means 16, but there is an operation device for driving the iron wheel 4 or the like on the work table 13. It may be detected that the power is turned on.
[0021]
As another example, when the track-and-rail vehicle 1 travels on a track, the steel wheels 4 are not driven by a hydraulic motor or the like, but the rear tire wheels 3 are pressed on the track to drive these tire wheels 3. Thus, the safety device as shown in FIG. 2 may be used for the track-and-rail vehicle 1 that can travel on the track.
[0022]
The configuration of the safety device shown in FIG. 2 includes a storage detection unit 15 that detects that the boom 12 is not in the storage position, and a power source that detects that the power switch 14 of the operation device 8 on the work table 13 is ON. It comprises a detection means 16, a travel operation detection means 18 that detects that a travel operation is performed in the cabin 6, and an alarm device 19 such as a buzzer that issues an alarm to the worker.
[0023]
The traveling operation detection means 18 detects that the operator has operated the traveling operation device 7 in the cabin 6 to drive the tire wheel 3 and generates a signal.
[0024]
The alarm device 19 is operated by the detection signal of at least one of the storage detection means 15 and the power supply detection means 16 and the traveling operation detection means 18. The alarm device 19 is a buzzer that is provided in the cabin 6 and issues a warning to the worker who has performed the traveling operation. The worker stops the traveling operation and stops traveling by hearing this alarm. Further, the alarm device 19 may not only warn the worker but also restrict direct travel, such as stopping the engine that is the driving source of the travel operation by stopping the supply of fuel.
[0025]
In addition, the boom 12 type aerial work apparatus 10 has been described as the aerial work apparatus 10 of the track-and-rail vehicle 1 so far, but it can be similarly applied to a vertical work vehicle such as a scissor type. In this case, the storage detection means 15 of the lifting device may detect that the lifting device is moved and the work table 13 is positioned at the lowest position.
[0026]
【The invention's effect】
As described above, in the safety device for a railway vehicle according to the present invention, when the lifting device is not in the retracted state, or when an operator is on the work table, that is, the power supply of the operation device provided on the work table. When either is on, high-speed running operation on the track can be prevented, and the lifting device can interfere with other structures on the track or board on the work table. It is possible to prevent the danger that the worker who falls is falling due to vibration of traveling or the like.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration of a safety device for a track-and-rail vehicle according to the present invention.
FIG. 2 is a block diagram showing a second configuration of the safety device for a railroad vehicle of the present invention.
FIG. 3 is a side view showing a configuration of a track-rail vehicle including the safety device of the present invention.
[Explanation of symbols]
1 Railroad vehicle 2 Car body 3 Tire wheels (wheels for road driving)
4 Iron wheels (wheels for track running)
6 Cabin 8 Operating device 12 Boom (elevating device)
13 Work table 15 Storage detection means 16 Power supply detection means 17 Travel restriction means 18 Travel operation detection means 19 Alarm device

Claims

Road traveling wheels and track traveling wheels are provided on the front, rear, left and right sides of the vehicle body , a lifting device capable of moving up and down is provided on the vehicle body, a work table is attached to the upper end of the lifting device, and the lifting device is moved up and down. The work table can be moved up and down with respect to the vehicle body , travel operation means for driving the track traveling wheel is provided in a cabin provided in front of the vehicle body , and the lift operation of the lift device is provided on the work table. And a safety device for an orbital vehicle provided with an operating device that is operated by electricity to perform at least one of the driving operations of the orbital running wheel,
Storage detecting means for detecting that at least one of the work table and the lifting device is not in a storage position;
A power switch for turning on and off the operating device;
A power detection means for detecting that the power supply of the operating device is being input by said power switch,
The detection signal of at least one of the storage detection means and the power supply detection means indicates that the work table or the lifting device is not in the storage position, or when the operation device is powered on, A railroad vehicle safety device comprising travel regulation means for regulating driving of the track running wheel by the travel control means .

Road traveling wheels and track traveling wheels are provided on the front, rear, left and right sides of the vehicle body, a lifting device that can be lifted up and down is provided on the vehicle body, a work table is attached to the upper end of the lifting device, and the lifting device is moved up and down. Thus, the work table can be moved up and down with respect to the vehicle body, a traveling operation means for driving the road traveling wheel is provided in a cabin provided in front of the vehicle body, and the lifting device is moved up and down on the work table. In a safety device for a railway vehicle provided with an operation device that is operated by electricity to perform at least one of operation and driving operation of the road traveling wheel,
Storage detecting means for detecting that at least one of the work table and the lifting device is not in a storage position;
A power switch for turning on and off the operating device;
A power detection means for detecting that the power supply of the operating device is being input by said power switch,
A traveling operation detecting means for detecting that the driving operation of the road traveling wheel by the traveling operation means in the cabin;
According to the detection signal of at least one of the storage detection means and the power supply detection means and the detection signal of the traveling operation detection means, the work table or the lifting device is not in the storage position, or the operation device is turned on. An alarm device that operates when the driving operation of the road driving wheel is performed by the driving operation means ,
The alarm device includes at least one of a buzzer that issues an alarm to an operator and a restriction device that restricts driving of the road traveling wheel by the traveling operation means in the cabin for traveling on a track. A safety device for a railway vehicle.