TRACK TYPE TRANSPORTATION SYSTEM
First Claim
1. A track type transportation system in which a vehicle runs on a road surface of a predetermined track, comprising a steering mechanism for automatically steering front and rear wheels of the vehicle by means of actuators, and a fail-safe mechanism composed of a protection track defined on the road surface of the track, and protection wheels provided in a lower part of the vehicle and adapted to run in the protection track without making contact with the protection track, characterized bya pair of noncontact type displacement meters attached to a bracket suspended downward from a lower part of a vehicle body, and arranged in the protection track, for emitting detection waves respectively toward left and right side walls of the protection track,wherein distances between mounted positions of the noncontact type displacement meters and the left and right side walls of the protection track are measured by the pair of noncontact type displacement meters.
2 Assignments
0 Petitions
Accused Products
Abstract
In a track type protection system comprising an automatic steering mechanism and a fail-safe mechanism, provided is a detection mechanism which can detect a deviated value of a vehicle, widthwise of a track, and which is highly reliable. The track type transportation system in which the vehicle runs on the road surface of the track, comprising the steering mechanism for automatically steering the front and rear wheels of the vehicle by means of actuators, and the fail-safe mechanism composed of a protection track defined on the road surface of the track, and protection wheels provided in the lower part of the vehicle and adapted to run in the protection track without making contact with the protection track, wherein there are provided a pair of noncontact type displacement meters 13 which are attached to a support bracket 64 suspended downward from the lower part of the vehicle body, and which are arranged in the protection track 14 so as to irradiate detection waves a onto the left and right side walls 14a of the protection track, thereby the distances from the noncontact type displacement meters 13 to the left and right side walls of the protection track are measured by the pair of noncontact type displacement meters.
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Citations
21 Claims
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1. A track type transportation system in which a vehicle runs on a road surface of a predetermined track, comprising a steering mechanism for automatically steering front and rear wheels of the vehicle by means of actuators, and a fail-safe mechanism composed of a protection track defined on the road surface of the track, and protection wheels provided in a lower part of the vehicle and adapted to run in the protection track without making contact with the protection track, characterized by
a pair of noncontact type displacement meters attached to a bracket suspended downward from a lower part of a vehicle body, and arranged in the protection track, for emitting detection waves respectively toward left and right side walls of the protection track, wherein distances between mounted positions of the noncontact type displacement meters and the left and right side walls of the protection track are measured by the pair of noncontact type displacement meters.
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4. A tack type transportation system in which a vehicle runs on a road surface of a predetermined track, comprising a steering mechanism for automatically steering front and rear wheels of the vehicle by means of actuators, and a fail-safe mechanism composed of a protection track defined on the road surface of the track, and protection wheels provided in a lower part of the vehicle and adapted to run in the protection track without making contact with the protection track, characterized by
a pair of noncontact type displacement meters attached to a bracket suspended downward from a lower part of a vehicle body, and arranged in the protection track, for emitting detection waves respectively in a vehicle running direction of the protection track, and reflectors for reflecting the detection waves emitted from the pair of noncontact type displacement meters, onto the left and right side walls of the protection track, wherein distances from mounted positions of the noncontact type displacement meters to the side walls of the protection track are measured by the pair of noncontact type displacement meters.
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11. A track type transportation system in which a vehicle runs on a road surface of a predetermined track, comprising a steering mechanism for automatically steering front wheels and rear wheels of the vehicle by means of actuators, and a fail-safe mechanism composed of a protection track defined on the road surface of the track, between a pair of left and right side walls extending in parallel with a vehicle running direction, and protection wheels provided to the lower part of the vehicle running in the protection track defined between the left and right side walls, characterized in that
there are provided a pair of noncontact type displacement meters attached to a bracket suspended downward from a lower part of a vehicle body, which are arranged in a space within the protection track defined between the pair of side walls so as to irradiate a detection wave (emission wave) emitted from one of the noncontact type displacement meters onto to the one of the side walls of the protection track and a detection wave emitted from the other one of the noncontact type displacement meters onto the other one of the side walls, and the pair of noncontact type displacement meters receive reflection waves from the side walls so as to measure distances from mounted positions of the respective noncontact type displacement meters to the left and right side walls of the protection track, in order to detect left and right deviated values of the vehicle with respect to the protection track.
Specification