Platform screen gate system
First Claim
Patent Images
1. A platform screen gate system, comprising:
- a tower;
a gate secured to the tower, the gate movable along a pathway between an open position, to facilitate access to and from a platform, and a closed position, to block access to and from the platform;
at least one roller secured to the tower;
a track secured to the gate, the track supported by and movable on the at least one roller such that the gate cantilevers from the at least one roller and remains above the platform when the door is moved between the open and closed positions, wherein the track comprises an upper track portion and a lower track portion, and wherein the at least one roller is located between the upper track portion and the lower track portion;
a slide track secured to the tower, the slide track having a longitudinal axis that is parallel to the pathway; and
a motor coupled to the slide track, the motor further coupled to a tension pulley and being operable to drive a belt secured to the gate and to position the gate along the pathway between the open and closed positions, wherein moving both the motor and the tension pulley linearly along the longitudinal axis of the slide track adjust tension in the belt.
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Abstract
A platform screen gate system having a tower, a gate secured to the tower. The gate is movable between an open position, to facilitate access to and from the platform, and a closed position, to block access to and from the platform. The system further includes at least one roller secured to the tower and a track secured to the gate. The track is supported by and movable on the least one roller such that the door cantilevers from the tower and remains above the platform when the door is moved between the open and closed positions.
140 Citations
22 Claims
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1. A platform screen gate system, comprising:
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a tower; a gate secured to the tower, the gate movable along a pathway between an open position, to facilitate access to and from a platform, and a closed position, to block access to and from the platform; at least one roller secured to the tower; a track secured to the gate, the track supported by and movable on the at least one roller such that the gate cantilevers from the at least one roller and remains above the platform when the door is moved between the open and closed positions, wherein the track comprises an upper track portion and a lower track portion, and wherein the at least one roller is located between the upper track portion and the lower track portion; a slide track secured to the tower, the slide track having a longitudinal axis that is parallel to the pathway; and a motor coupled to the slide track, the motor further coupled to a tension pulley and being operable to drive a belt secured to the gate and to position the gate along the pathway between the open and closed positions, wherein moving both the motor and the tension pulley linearly along the longitudinal axis of the slide track adjust tension in the belt. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A platform screen gate system, comprising:
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a tower having an upper portion, a lower portion and a slide track; a gate slideably connected to and cantilevered from the tower by at least one roller disposed in the upper portion of the tower, wherein the gate comprises an upper track portion and a lower track portion and the at least one roller is located between the upper track portion and the lower track portion; a belt coupled to the gate, the belt movable to position the gate along a pathway between an open position, to facilitate access to and from a platform, and a closed position, to block access to and from the platform, wherein the pathway extends through the tower such that at least part of the gate is movable along the pathway through the tower, wherein a longitudinal axis of the slide track is parallel to the pathway; and an operator operably coupled to the gate and located in the lower portion of the tower for positioning the gate between an open position, to facilitate access to and from a platform, and a closed position, to block access to and from the platform, wherein the operator comprises a motor coupled to a tension pulley that is operably coupled to the belt which moves the gate between the open position and the closed position; wherein the motor is disposed on and linearly movable along the longitudinal axis of the slide track and movement of the motor and the tension pulley along the longitudinal axis adjusts tension in the belt, wherein the motor is securable in a desired position on the slide track when a desired tension is achieved in the belt. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A movable gate apparatus, comprising:
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a tower including a gate support in an upper portion of the tower and a controller in a lower portion of the tower, wherein the controller includes a motor; and a gate secured to the tower by the gate support and slideably movable between an open position, to facilitate access to a platform, and a closed position, to block access to the platform, along a pathway in response to actuation by the controller, wherein the pathway is at least partially located between the first tower section and the second tower section, a bottom of the gate is below the motor and a top of the gate is above the motor when the gate is in the fully closed position, the gate having an opening therethrough and positioned thereon such that when the gate is in the fully closed position, the opening is aligned with the motor to facilitate access thereto, and wherein when the gate is in the fully open position, the opening is misaligned with the motor and the gate obscures access to the motor. - View Dependent Claims (17, 18, 19, 20)
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21. A platform screen gate system, comprising:
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a tower including a motor; and a gate secured to the tower, the gate movable along a first pathway between an open position, to facilitate access to and from a platform, and a closed position, to block access to and from the platform, wherein a belt is secured to the gate; wherein the tower comprises a slide track having a longitudinal axis that is parallel to the first pathway, wherein the slide track is fixed to the tower; wherein the motor is coupled to a tension pulley and is secured to and linearly movable along the longitudinal axis of the slide track, wherein movement of the motor and the tension pulley along the longitudinal axis of the slide track adjust tension in the belt, wherein the motor is securable in a desired position on the slide track when a desired tension is achieved in the belt. - View Dependent Claims (22)
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Specification