軌道の接続構造

Track connecting structure

Abstract

【課題】 熱膨張による伸縮を吸収するための隙間がなく、段差による車両の振動が生じにくい軌道の接続構造を提供する。 【解決手段】 2つの軌道桁2の端部にそれぞれ突合ブロック3を固着する。2つの突合ブロック3の上部間に、左右一対の接続板4を水平に掛け渡し、粘弾性部材5を介して接着する。突合ブロック3には、フランジ2aの端部に接合する左右一対の固定板7を固着する。接続板4と固定板7の斜辺4a、7bを接合させ、接続板4は、予想される温度変化による軌道の伸縮に基づく端部の変位距離の約半分をプリセットして突合ブロック3に粘弾性部材5を介して接着する。軌道1が伸縮すると、一対の接続板4が固定板7に接合したまま粘弾性部材5を弾性的に変形させて左右に平行移動し、車輪の走行面に隙間が形成されない。 【選択図】 図1
PROBLEM TO BE SOLVED: To provide a track connecting structure causing little vibration of a rolling stock by a step height, by eliminating clearance for absorbing the expansion by thermal expansion. SOLUTION: Butting blocks 3 are respectively fixed to an end part of two track girders 2. A pair of left-right connecting plates 4 are horizontally extended between upper parts of the two butting blocks 3, and are adhered via a viscoelastic member 5. A pair of left-right fixing plates 7 joined to an end part of a flange 2a are fixed to the butting blocks 3. Oblique lines 4a and 7b of the connecting plates 4 and the fixing plates 7 are joined. The connecting plates 4 are adhered via the viscoelastic member 5 to the butting blocks 3 by presetting about half of a displacement distance of the end part based on the expansion of a track by a predicted temperature change. When the track 1 expands and contracts, the pair of connecting plates 4 laterally move in parallel by elastically deforming the viscoelastic member 5 while being still joined to the fixing plates 7, and the clearance is not formed on a traveling surface of a wheel. COPYRIGHT: (C)2005,JPO&NCIPI

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