JP7252036B2 - Telescopic rail device for railway work vehicle - Google Patents

Telescopic rail device for railway work vehicle Download PDF

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JP7252036B2
JP7252036B2 JP2019065401A JP2019065401A JP7252036B2 JP 7252036 B2 JP7252036 B2 JP 7252036B2 JP 2019065401 A JP2019065401 A JP 2019065401A JP 2019065401 A JP2019065401 A JP 2019065401A JP 7252036 B2 JP7252036 B2 JP 7252036B2
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rail
push
fixed
fixed rail
roller
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JP2020165147A (en
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由行 大竹
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Sanwa Tekki Corp
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Sanwa Tekki Corp
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61J—SHIFTING OR SHUNTING OF RAIL VEHICLES
    • B61J1/00—Turntables; Traversers; Transporting rail vehicles on other rail vehicles or dollies
    • B61J1/10—Traversers
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B23/00—Easily dismountable or movable tracks, e.g. temporary railways; Details specially adapted therefor

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Transportation (AREA)
  • Vehicle Step Arrangements And Article Storage (AREA)
  • Drawers Of Furniture (AREA)
  • Machines For Laying And Maintaining Railways (AREA)

Description

この発明は、鉄道線路における本線レールの脇に設けられた作業車両の保管場所から本線レールまで作業車両を移動させるために、本線レールとほぼ直交方向に交差するように伸縮可能に設けられるレール装置に関するものである。 The present invention is a rail device that is extendable and extendable so as to intersect the main rail in a direction substantially perpendicular to the main rail in order to move the working vehicle from a storage place for the working vehicle provided on the side of the main rail on a railroad track to the main rail. It is about.

従来、鉄道作業車両用の伸縮レール装置として、例えば特許文献１に記載されたものが知られている。これは、作業車両の保管場所に固定された固定レールの上に載せ置かれた可動レールを、必要時に引き出して所定位置まで延長する形式のものである。
この伸縮レール装置においては、固定レールが、本線レールに対しほぼ直交方向に伸びるように保管場所のベース上に固定される。可動レールは、基端側を固定レールの基端部上にまた先端側を固定レールの先端部上に配置して固定レール上に載せ置かれる収縮位置と、基端側が固定レールの先端側と上面を一致させて延線方向である前後方向に固定レールと連続する伸長位置との間で固定レールの上をそれの延線方向である前後方向に往復移動可能に設けられる。
固定レールは、作業車両の車輪を載せ受ける上部フランジと、ベースに固定される下部フランジと、両フランジの中央間を接続する垂直のウェブとを具備する。
可動レールは、作業車両の車輪を載せ受ける走行部と、当該走行部の左右両側から相対向して下方へ延出する一対の脚部とを有し、全体が断面ほぼコ字状に構成され、収縮位置において走行部を固定レールの上部フランジ上に乗せ、固定レールを跨いで固定レール上に載せ置くことができるように構成される。
可動レールの基端側の脚部には、伸長位置において固定レールの先端側のウェブの左右側面に対向するように延出する支持板がそれぞれ固着される。
固定レールと可動レールとの間には、伸長位置にある可動レールを後退させる際に可動レールの基端側を固定レールの先端部上に押し上げるための押上手段が設けられる。
押上手段は、支持板の対向方向と反対側である外側へ突出するように支持板上に設けられる押上用ローラと、伸長位置にある可動レールの基端側が後退して固定レールの先端部上に乗り上げるまでの間、押上用ローラに係合して可動レールの基端側を上方へ押し上げる力を付与するように固定レールの先端側の左右両側に設けられる押上機構とを具備する。
押上機構は、押上用ローラに係合して起立・転倒する押上レバーと、この押上レバーを常時起立方向に回転付勢する付勢手段とを具備する。
押上レバーは、可動レールが伸長位置にあるとき、押上用ローラに押されて付勢手段を畜勢しつつ転倒し、可動レールの基端部が固定レールの先端部上に乗った位置にあるとき、付勢手段の放勢により押上用ローラを押し上げて起立するように付勢手段により付勢される。
押上手段により、可動レールを収縮方向へ後退操作する際の初期の力を押上機構で補助するように構成される。 2. Description of the Related Art Conventionally, as a telescopic rail device for a railway work vehicle, for example, one described in Patent Document 1 is known. This is of the type in which a movable rail placed on a fixed rail fixed to a storage place for a work vehicle is pulled out and extended to a predetermined position when necessary.
In this telescoping rail device, a fixed rail is fixed on the base of the storage area so as to extend in a direction substantially orthogonal to the main rail. The movable rail has a contraction position in which the base end is placed on the base end of the fixed rail and the distal end is placed on the distal end of the fixed rail and placed on the fixed rail, and the proximal end is placed on the distal end of the fixed rail. It is provided so as to be able to reciprocate on the fixed rail in the longitudinal direction, which is the extension direction, between an extended position which is continuous with the fixed rail in the longitudinal direction, which is the extension direction, with the upper surfaces aligned with each other.
The fixed rail comprises an upper flange for receiving the wheels of the work vehicle, a lower flange fixed to the base, and a vertical web connecting between the centers of the flanges.
The movable rail has a running portion on which the wheels of the work vehicle are placed, and a pair of leg portions extending downward from the right and left sides of the running portion, and is generally U-shaped in cross section. , in the retracted position, the running part can be placed on the upper flange of the fixed rail and can be placed on the fixed rail straddling the fixed rail.
Support plates are fixed to the base end side leg portions of the movable rail so as to extend so as to face the left and right side surfaces of the web on the front end side of the fixed rail in the extended position.
A push-up means is provided between the fixed rail and the movable rail for pushing up the base end side of the movable rail above the distal end portion of the fixed rail when the movable rail in the extended position is retracted.
The push-up means includes a push-up roller provided on the support plate so as to protrude to the outside, which is the side opposite to the facing direction of the support plate, and a push-up roller provided on the support plate so as to protrude outward, and a base end side of the movable rail in the extended position retreats and moves above the tip portion of the fixed rail. and push-up mechanisms provided on both left and right sides of the leading end side of the fixed rail so as to engage with the push-up rollers and apply a force to push up the base end side of the movable rail until it rides on the fixed rail.
The push-up mechanism includes a push-up lever that engages with the push-up roller to stand up and fall down, and an urging means that always rotates and urges the push-up lever in the upright direction.
When the movable rail is in the extended position, the push-up lever is pushed by the push-up roller and overturns while accumulating the biasing means, and the base end of the movable rail is on the tip of the fixed rail. At this time, the force is released by the force means so that the push-up roller is pushed up to stand upright.
The push-up mechanism is configured to assist the initial force when the movable rail is retracted in the retraction direction by the push-up mechanism.

特開２００８－１５０８１９号公報JP 2008-150819 A

上記従来の伸縮レール装置においては、伸長状態にある可動レールを収縮位置に復旧させるために、可動レールの基端側を固定レールの先端部上へ手動にて引き上げる際に、勢い余って、押上用ローラが押上レバーの回転半径を超える位置まで引き上げられると、押上用ローラと押上レバーとの係合が外れてしまう。可動レールは大重量であるから、いったん係合が外れた押上用ローラを適正位置に戻すのは容易でないという問題点がある。
したがって、この発明は、可動レールを固定レール上へ手動にて引き上げる際に、押上用ローラが押上レバーの回転半径を超えて引き上げられることがない伸縮レール装置を提供することを課題とする。 In the above-described conventional telescopic rail device, when the proximal end of the movable rail is manually pulled up above the distal end of the fixed rail in order to restore the movable rail in the extended state to the retracted position, it is pushed up due to excess momentum. When the push-up roller is pulled up to a position exceeding the rotation radius of the push-up lever, the engagement between the push-up roller and the push-up lever is disengaged. Since the movable rail is heavy, there is a problem that it is not easy to return the push-up roller, once disengaged, to its proper position.
SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an extendable rail device in which the push-up roller is not pulled up beyond the rotation radius of the push-up lever when the movable rail is manually pulled up onto the fixed rail.

上記課題を解決するための、本発明の伸縮レール装置は、可動レール２が、作業車両の車輪を載せ受ける走行部２ｂと、当該走行部２ｂの左右両側から相対向して下方へ延出する一対の脚部２ｃとを有し、全体が断面ほぼコ字状に構成され、収縮位置において走行部２ｂを固定レール１の上部フランジ１ｂ上に乗せ、固定レール１を跨いで固定レール１上に載せ置くことができるように構成される。可動レール２の基端部２ａ側の脚部２ｃには、伸長位置において固定レール１の先端部１ａ側のウェブ１ｄの左右側面に対向するように延出する支持板３がそれぞれ固着される。固定レール１と可動レール２との間には、伸長位置にある可動レール２を後退させる際に可動レール２の基端部２ａ側を固定レール１の先端部１ａ上に押し上げるための押上手段４が設けられる。押上手段４は、支持板３の対向方向と反対側である外側へ突出するように支持板３上に設けられる押上用ローラ５と、伸長位置にある可動レール２の基端部２ａが後退して固定レール１の先端部１ａ上に乗り上げるまでの間、押上用ローラ５に係合して可動レール２の基端部２ａ側を上方へ押し上げる力を付与するように固定レール１の先端側の左右両側に設けられる押上機構６とを具備する。押上機構６は、押上用ローラ５に係合して起立・転倒する押上レバー８と、この押上レバー８を常時起立方向に回転付勢する付勢手段９とを具備する。押上レバー８は、可動レール２が伸長位置にあるとき、押上用ローラ５に押されて付勢手段９を畜勢しつつ転倒し、可動レール２の基端部が固定レール１の先端部1ａ上に乗った位置にあるとき、付勢手段９の放勢により押上用ローラ５を押し上げて起立するように付勢手段９により付勢される。可動レール２を収縮方向へ後退操作する際の初期の力を押上手段４で補助するように構成される。固定レール１の先端部1ａ側のウェブ１ｄの左右側面には、可動レール２の基端側を固定レール１の先端部上へ手動にて引き上げる際に、押上用ローラ５が押上レバー８の回転半径を超えて引き上げられることがないように、それの移動範囲を規制するためのストッパ１０が突設される。 In the telescopic rail device of the present invention for solving the above-mentioned problems, the movable rail 2 extends downward from the traveling portion 2b on which the wheels of the work vehicle are placed, facing each other from the left and right sides of the traveling portion 2b. It has a pair of leg portions 2c, and the entire section is substantially U-shaped. configured to be stackable. Support plates 3 are fixed to the legs 2c of the movable rail 2 on the side of the base end 2a so as to face the left and right side surfaces of the web 1d on the side of the tip 1a of the fixed rail 1 in the extended position. Between the fixed rail 1 and the movable rail 2 is a push-up means 4 for pushing up the base end portion 2a side of the movable rail 2 onto the tip portion 1a of the fixed rail 1 when retracting the movable rail 2 from the extended position. is provided. The push-up means 4 consists of a push-up roller 5 provided on the support plate 3 so as to protrude to the outside opposite to the facing direction of the support plate 3, and a base end portion 2a of the movable rail 2 at the extended position. until it rides on the front end portion 1a of the fixed rail 1, the front end portion of the fixed rail 1 is engaged with the push-up roller 5 to apply a force to push up the base end portion 2a side of the movable rail 2. Push-up mechanisms 6 are provided on both left and right sides. The push-up mechanism 6 includes a push-up lever 8 that engages with the push-up roller 5 to stand up and fall down, and an urging means 9 that always rotationally urges the push-up lever 8 in the upright direction. When the movable rail 2 is in the extended position, the push-up lever 8 is pushed by the push-up roller 5 and overturns while accumulating the force of the urging means 9. When it is in the raised position, it is urged by the urging means 9 so as to push up the push-up roller 5 by releasing the force of the urging means 9 and stand up. It is configured such that the initial force when retracting the movable rail 2 in the contraction direction is assisted by the push-up means 4 . On the left and right side surfaces of the web 1d on the front end portion 1a side of the fixed rail 1, when the base end side of the movable rail 2 is manually pulled up above the front end portion of the fixed rail 1, the push-up rollers 5 rotate the push-up lever 8. A stopper 10 is protruded to limit the range of movement so that it is not pulled up beyond its radius.

本発明の伸縮レール装置においては、押し上げ用ローラ５の移動範囲がストッパ１０により規制されるため、可動レール２を固定レール１上へ手動にて引き上げる際に、押上用ローラ５が押上レバー８の回転半径を超えて引き上げられることがなく、押し上げ用ローラ５が押上レバー８から外れることがない。 In the telescopic rail device of the present invention, the movement range of the push-up roller 5 is restricted by the stopper 10. Therefore, when the movable rail 2 is manually lifted onto the fixed rail 1, the push-up roller 5 is pushed up by the push-up lever 8. The push-up roller 5 is not removed from the push-up lever 8 without being pulled up beyond the radius of rotation.

伸長状態の伸縮レール装置における接続部の正面図である。FIG. 4 is a front view of a connecting portion in the telescopic rail device in an extended state; 伸長状態の伸縮レール装置における接続部の平面図である。FIG. 4 is a plan view of a connecting portion in the telescoping rail device in a stretched state; 図１におけるIII－III断面図である。FIG. 2 is a cross-sectional view taken along line III-III in FIG. 1; 可動レールが後退初期の状態にある伸縮レール装置における接続部部の正面図である。FIG. 10 is a front view of a connecting portion in the telescopic rail device in which the movable rail is in an initial state of retraction; 図４におけるV－V断面図である。FIG. 5 is a cross-sectional view taken along the line VV in FIG. 4;

図面を参照して本発明の一実施形態を説明する。
鉄道作業車両用の伸縮レール装置は、作業車両走行させるための固定レール１と可動レール２とを具備する。固定レール１は、作業車両の保管場所に固定される。可動レール２は、常時は固定レール１の上に載せ置かれた収縮位置にあり、必要時に伸長位置へ引き出され、固定レール１と接続され（図１）、図示しない本線レールまで延長される。したがって、可動レール２は、収縮位置と伸張位置の間で固定レール１の上をそれの延線方向である前後方向に往復移動可能に設けられる。 An embodiment of the present invention will be described with reference to the drawings.
A telescopic rail device for a railway work vehicle comprises a fixed rail 1 and a movable rail 2 for running the work vehicle. The fixed rail 1 is fixed to the storage place of the working vehicle. The movable rail 2 is normally in a retracted position placed on the fixed rail 1, and is pulled out to an extended position when necessary, connected to the fixed rail 1 (FIG. 1), and extended to a main rail (not shown). Therefore, the movable rail 2 is provided so as to be able to reciprocate on the fixed rail 1 between the retracted position and the extended position in the longitudinal direction, which is the extension direction of the fixed rail 1 .

この伸縮レール装置においては、固定レール１が、図示しない本線レールに対しほぼ直交方向に伸びるように保管場所のベースＢ上に固定される。可動レール２は、図示しない収縮位置において、基端部２ａ側を固定レール１の図示しない基端部上に、また図示しない先端側を固定レール１の先端部１ａ上に配置して固定レール１上に載せ置かれ、図１，２に示す伸張位置においては、基端部２ａ側が固定レール１の先端１ａ側と上面を一致させて延線方向である前後方向に連続する。 In this telescopic rail device, a fixed rail 1 is fixed on a base B of a storage place so as to extend in a direction substantially orthogonal to a main rail (not shown). In a retracted position (not shown), the movable rail 2 is arranged such that the base end portion 2a side is arranged on the base end portion (not shown) of the fixed rail 1 and the tip end portion (not shown) is arranged on the tip portion 1a of the fixed rail 1. In the extended position shown in FIGS. 1 and 2, the base end 2a side and the tip 1a side of the fixed rail 1 are flush with each other and are continuous in the front-rear direction, which is the extending direction.

固定レール１は、作業車両の車輪を載せ受ける上部フランジ１ｂと、ベースＢに固定される下部フランジ１ｃと、両フランジ１ｂ，１ｃの中央間を接続する垂直のウェブ１ｄとを具備する。 The fixed rail 1 comprises an upper flange 1b for receiving the wheels of the working vehicle, a lower flange 1c fixed to the base B, and a vertical web 1d connecting the centers of the two flanges 1b and 1c.

可動レール２は、作業車両の車輪を載せ受ける走行部２ｂと、当該走行部２ｂの左右両側から相対向して下方へ延出する一対の脚部２ｃとを有し、全体が断面ほぼコ字状に構成され、収縮位置において走行部２ｂを固定レール１の上部フランジ１ｂ上に乗せ、固定レール１を跨いで固定レール１上に載せ置くことができるように構成される。 The movable rail 2 has a running portion 2b for receiving the wheels of the work vehicle, and a pair of leg portions 2c extending downward from both left and right sides of the running portion 2b, and the entire section has a substantially U-shaped cross section. In the retracted position, the running portion 2b is placed on the upper flange 1b of the fixed rail 1 and can be placed on the fixed rail 1 across the fixed rail 1. As shown in FIG.

可動レール２の基端部２ａ側の脚部２ｃには、固定レール１側へ延出する支持板３がそれぞれ固着される。支持板３は、図１，２に示す伸長位置において固定レール１の先端部１ａ側のウェブ１ｄの左右側面に対向するように配置される。 A support plate 3 extending toward the fixed rail 1 is fixed to each leg portion 2c of the movable rail 2 on the side of the base end portion 2a. The support plate 3 is arranged so as to face the left and right side surfaces of the web 1d on the side of the tip portion 1a of the fixed rail 1 in the extended position shown in FIGS.

固定レール１と可動レール２との間には、伸長位置にある可動レール２を収縮位置へを後退させる際に、可動レール２の基端部２ａを固定レール１の先端部１ａ上に押し上げるための押上手段４が設けられる。 Between the fixed rail 1 and the movable rail 2, when retracting the movable rail 2 from the extended position to the contracted position, the base end portion 2a of the movable rail 2 is pushed up onto the tip portion 1a of the fixed rail 1. is provided.

押上手段４は、可動レール２側の支持板３に設けられる押上用ローラ５と、固定レール１の先端側の左右両側に設けられる押上機構６とを具備する。押上機構６は、伸長位置にある可動レール２の基端側が後退して固定レール１の先端部１ａ上に乗り上げるまでの間、押上用ローラ５に係合して可動レール２の基端側を上方へ押し上げる力を付与する。 The push-up means 4 includes push-up rollers 5 provided on the support plate 3 on the movable rail 2 side, and push-up mechanisms 6 provided on both left and right sides of the fixed rail 1 on the leading end side. The push-up mechanism 6 engages with the push-up roller 5 to lift the base end of the movable rail 2 until the base end of the movable rail 2 in the extended position retreats and rides on the tip portion 1a of the fixed rail 1. Gives a force to push upward.

押上用ローラ５は、支持板３上に、外側へ突出するように設けられる。支持板３の内側には、押上用ローラ５と同心上に外れ止め用ローラ７が設けられる。 The push-up roller 5 is provided on the support plate 3 so as to protrude outward. A retaining roller 7 is provided inside the support plate 3 concentrically with the push-up roller 5 .

押上機構６は、押上用ローラ５に係合して起立・転倒する押上レバー８と、この押上レバー８を常時起立方向に回転付勢する付勢手段９とを具備する。 The push-up mechanism 6 includes a push-up lever 8 that engages with the push-up roller 5 to stand up and fall down, and an urging means 9 that always rotationally urges the push-up lever 8 in the upright direction.

押上レバー８は、図１，２に示すように、可動レール２が伸長位置にあるとき、押上用ローラ５に押されて付勢手段９を畜勢しつつ転倒し、図４に示すように、可動レール２の基端部２ａが固定レール１の先端部１ａ上に乗った位置にあるとき、付勢手段９の放勢により押上用ローラ５を押し上げて起立するように付勢される。 As shown in FIGS. 1 and 2, when the movable rail 2 is in the extended position, the push-up lever 8 is pushed by the push-up roller 5 to overturn while accumulating the biasing means 9, and as shown in FIG. , when the base end portion 2a of the movable rail 2 is positioned on the tip portion 1a of the fixed rail 1, the release force of the biasing means 9 pushes up the push-up roller 5 so as to stand up.

固定レール１の先端側のウェブ１ｄの左右側面には、可動レール２の基端部２ａ側を固定レール１の先端部１ａ上へ手動にて引き上げる際に、押上用ローラ５が押上レバー８の回転半径を超えて引き上げられることがないように、それの移動範囲を規制するためのストッパ１０が突設される。図示の実施形態において、ストッパ１０は、押上用ローラ５と同心上に設けられた外れ止め用ローラ７の動きを押上レバー８の回転半径内に規制する円弧状のガイド面１０ａを有する。 On the left and right side surfaces of the web 1d on the front end side of the fixed rail 1, when the base end portion 2a side of the movable rail 2 is manually pulled up onto the front end portion 1a of the fixed rail 1, the push-up roller 5 is attached to the push-up lever 8. A stopper 10 is protrudingly provided for regulating the movement range so that it is not lifted beyond the radius of rotation. In the illustrated embodiment, the stopper 10 has an arc-shaped guide surface 10 a that restricts the movement of the detent roller 7 provided concentrically with the push-up roller 5 within the radius of rotation of the push-up lever 8 .

１ 固定レール
１ａ 先端部
１ｂ 上部フランジ
１ｃ 下部フランジ
１ｄ ウェブ
２ 可動レール
２ａ 基端部
２ｂ 走行部
２ｃ 脚部
３ 支持板
４ 押上手段
５ 押上用ローラ
６ 押上機構
７ 外れ止めローラ
８ 押上レバー
９ 付勢手段
１０ ストッパ
１０ａ ガイド面 1 fixed rail 1a distal end 1b upper flange 1c lower flange 1d web 2 movable rail 2a base end 2b traveling portion 2c leg 3 support plate 4 push-up means 5 push-up roller 6 push-up mechanism 7 stopper roller 8 push-up lever 9 biasing means 10 stopper 10a guide surface

Claims (1)

本線レールの側方に設けられた作業車両の保管場所から本線レールまで作業車両を移動させるために、本線レールとほぼ直交方向に交差するように前後方向に伸縮可能に設けられるレール装置であって、
基端と先端とを有し前記本線レールに対しほぼ直交方向に伸びるように前記保管場所のベース上に固定される固定レールと、
基端と先端とを有し基端側を前記固定レールの基端部上にまた先端側を固定レールの先端部上に配置して前記固定レール上に載せ置かれる収縮位置と基端側が前記固定レールの先端側と上面を一致させて延線方向である前後方向に固定レールと連続する伸長位置との間で前記固定レールの上をそれの延線方向である前後方向に往復移動可能に設けられる可動レールとを具備する伸縮レール装置において、
前記固定レールは、作業車両の車輪を載せ受ける上部フランジと、前記ベースに固定される下部フランジと、両フランジの中央間を接続する垂直のウェブとを具備し、
前記可動レールは、作業車両の車輪を載せ受ける走行部と、当該走行部の左右両側から相対向して下方へ延出する一対の脚部とを有し、全体が断面ほぼコ字状に構成され、収縮位置において前記走行部を前記上部フランジ上に乗せ、前記固定レールを跨いで前記固定レール上に載せ置き可能に構成され、
前記可動レールの基端側の前記脚部には、伸長位置において前記固定レールの先端側の前記ウェブの左右側面に対向するように延出する支持板がそれぞれ固着され、
前記固定レールと前記可動レールとの間には、伸長位置にある前記可動レールを後退させる際に前記可動レールの基端側を前記固定レールの先端部上に押し上げるための押上手段が設けられ、
前記押上手段は、前記支持板の対向方向と反対側である外側へ突出するように前記支持板上に設けられる押上用ローラと、伸長位置にある前記可動レールの基端側が後退して前記固定レールの先端部上に乗り上げるまでの間前記押上用ローラに係合して前記可動レールの基端側を上方へ押し上げる力を付与するように固定レールの先端側の左右両側に設けられる押上機構とを具備し、
前記押上機構は、前記押上用ローラに係合して起立・転倒する押上レバーと、この押上レバーを常時起立方向に回転付勢する付勢手段とを具備し、
前記押上レバーは、前記可動レールが伸長位置にあるとき前記押上用ローラに押されて前記付勢手段を畜勢しつつ転倒し、可動レールの基端部が前記固定レールの先端部上に乗った位置にあるとき付勢手段の放勢により押上用ローラを押し上げて起立するように前記付勢手段により付勢され、
前記可動レールを収縮方向へ後退操作する際の初期の力を前記押上機構で補助するように構成される伸縮レール装置において、
前記固定レールの先端側の前記ウェブの左右側面には、前記可動レールの基端側を前記固定レールの先端部上へ手動にて引き上げる際に、前記押上用ローラが前記押上レバーの回転半径を超えて引き上げられることがないように前記押上用ローラの移動範囲を規制するためのストッパが突設されることを特徴とする伸縮レール装置。 A rail device provided so as to be extendable and retractable in the front-rear direction so as to intersect the main rail in a substantially orthogonal direction in order to move the working vehicle from a work vehicle storage place provided on the side of the main rail to the main rail. ,
a fixed rail having a proximal end and a distal end and fixed on the base of the storage area so as to extend substantially perpendicular to the main rail;
A retracted position having a proximal end and a distal end and placed on the fixed rail with the proximal side on the proximal end of the fixed rail and the distal side on the distal end of the fixed rail, and the proximal side on the fixed rail. It is possible to reciprocate on the fixed rail in the front-rear direction, which is the extension direction, between an extended position continuous with the fixed rail in the front-rear direction, which is the extension direction, by aligning the front end side and the upper surface of the fixed rail. In a telescopic rail device comprising a movable rail provided,
The fixed rail comprises an upper flange for receiving the wheels of the work vehicle, a lower flange fixed to the base, and a vertical web connecting the centers of both flanges,
The movable rail has a running portion on which the wheels of the work vehicle are placed, and a pair of leg portions extending downward from both left and right sides of the running portion to face each other, and the entire section is substantially U-shaped in cross section. and, in the retracted position, the running portion can be placed on the upper flange and can be placed on the fixed rail across the fixed rail,
Support plates are fixed to the leg portions on the base end side of the movable rail so as to extend so as to face left and right side surfaces of the web on the tip side of the fixed rail in an extended position,
A push-up means is provided between the fixed rail and the movable rail for pushing up the base end side of the movable rail above the tip portion of the fixed rail when retracting the movable rail in the extended position,
The push-up means includes a push-up roller provided on the support plate so as to protrude to the outside , which is the side opposite to the facing direction of the support plate, and a base end side of the movable rail in the extended position retracted to the fixed position. a push-up mechanism provided on both left and right sides of the front end of the fixed rail so as to engage with the push-up roller until it rides on the front end of the rail and apply a force to push up the base end of the movable rail; and
The push-up mechanism includes a push-up lever that engages with the push-up roller to stand up and fall down, and an urging means that always rotates and urges the push-up lever in the upright direction,
When the movable rail is in the extended position, the push-up lever is pushed by the push-up roller to overturn while accumulating the biasing means, and the base end of the movable rail rides on the tip of the fixed rail. urged by said urging means so as to push up and stand up the push-up roller when the urging means is released, and
In the telescopic rail device configured to assist the initial force when retracting the movable rail in the contraction direction with the push-up mechanism,
On the left and right side surfaces of the web on the front end side of the fixed rail, when the base end side of the movable rail is manually pulled up above the front end portion of the fixed rail, the push-up rollers move the rotation radius of the push-up lever. A telescopic rail device characterized by projecting a stopper for regulating a movement range of the push-up roller so that the push-up roller is not lifted beyond.
JP2019065401A 2019-03-29 2019-03-29 Telescopic rail device for railway work vehicle Active JP7252036B2 (en)

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PCT/JP2020/014516 WO2020203959A1 (en) 2019-03-29 2020-03-30 Extending and contracting rail device for railway work vehicle

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001146701A (en) 1999-11-22 2001-05-29 West Japan Railway Co Expansion rail device for railway working vehicle
JP2008150819A (en) 2006-12-15 2008-07-03 Sanwa Tekki Corp Expandable rail device for railway working vehicle
JP2011208477A (en) 2010-03-30 2011-10-20 Sanwa Tekki Corp Expansion rail device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2652490B2 (en) * 1992-08-07 1997-09-10 東日本旅客鉄道株式会社 Telescopic rail device for railway work vehicles
JP3410215B2 (en) * 1994-06-07 2003-05-26 東日本旅客鉄道株式会社 Telescopic rail device for railway work vehicles

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001146701A (en) 1999-11-22 2001-05-29 West Japan Railway Co Expansion rail device for railway working vehicle
JP2008150819A (en) 2006-12-15 2008-07-03 Sanwa Tekki Corp Expandable rail device for railway working vehicle
JP2011208477A (en) 2010-03-30 2011-10-20 Sanwa Tekki Corp Expansion rail device

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