Passenger conveyor and treadboard construction for passenger conveyor
AssigneeHitachi, Ltd.
InventorsChuichi Saito, Kazuhira Ojima, Masao Nakazato
Life of this patent
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Abstract
In a passenger conveyor, in order to reduce installation dimensions and, more particularly, a height of the passenger conveyor, the passenger conveyor is constructed to be driven by a linear motor, with stators and moving members of the linear motor being formed such that surfaces thereof facing each other are located in horizontal planes and generated magnetic flux of the stators is perpendicular to the facing surfaces. The moving members are mounted on the respective treadboards.
Claims19
In a passenger conveyor comprising a plurality of treadboards interconnected in a endless manner and being movable along an advance-travel path and a return-travel path disposed below said advance-travel path;
- and a linear motor for driving said treadboards;
- the improvement wherein stators and moving members of said linear motor are formed such that surfaces thereof facing each other are located in horizontal planes;
- said stators being disposed between said advance-travel path and said return-travel path;
- and said moving members are mounted on reverse sides of said treadboards, respectively, and wherein each of said treadboards are provided with a spacer formed on at least one of the opposed ends of any two adjacent ones of said treadboards so as to maintain a gap between said adjacent treadboards.
In a passenger conveyor comprising a plurality of treadboards interconnected in an endless manner and being movable along a advance-travel path and a return-travel path disposed below said advance-travel path;
- and a linear motor for driving said treadboards;
- stators of said linear motor being disposed between said advance-travel path and said return-travel path, and moving members of said linear motor being mounted respectively on reverse sides of said treadboards so that said moving members can be vertically opposed to said stators;
- the improvement comprising gap-keeping means for keeping a gap between said stator and said moving member.
In a passenger conveyor comprising a plurality of treadboards interconnected in an endless manner and being movable along an advance-travel path and a return-travel path disposed below said advance-travel path;
- and a linear motor for driving said treadboards;
- the improvement wherein stators and moving members which jointly constitute said linear motor are formed into a flattened configuration in a direction of travel of said treadboards and in a direction of the width of said treadboard;
- said moving members being mounted on reverse sides of said treadboards;
- respectively;
- said stators being disposed between said advance-travel path and said return-travel path;
- and said stators being divided into a first group opposable to said moving members at said advance-travel path and a second group opposable to said moving members at said return-travel path.
In a passenger conveyor comprising a plurality of treadboards interconnected in an endless manner and being movable along an advance-travel path and a return-travel path disposed below said advance-travel path;
- a linear motor for driving said treadboards;
- and moving hand rail movable in synchronism with the movement of said treadboards;
- the improvement wherein a rotary member is rotated by the movement of said treadboards;
- said moving handrail being driven to be moved by the rotation of said rotary member.
In a passenger conveyor comprising a plurality of treadboards interconnected in an endless manner and being movable along an advance-travel path and a return-travel path disposed below said advance-travel path;
- and a linear motor for driving said treadboards;
- the improvement wherein a rotary member is rotated by the movement of said treadboards, and a brake device is provided for applying a braking force to said rotary member.
In a passenger conveyor comprising a plurality of treadboards interconnected in an endless manner and being movable along an advance-travel path and a return-travel path disposed below said advance-travel path;
- a linear motor for driving said treadboards;
- and moving handrail movable in synchronism with the movement of said treadboards;
- the improvement wherein a first rotary member is rotated by the movement of said treadboards;
- a second rotary member and a third rotary member are rotated by the rotation of said first rotary member;
- said moving handrail is driven by the rotation of said second rotary member;
- and a brake device is provided for applying a braking force to said third rotary member.
In a method of operating a passenger conveyor comprising a plurality of treadboards interconnected in an endless manner and being movable along an advance-travel path and a return-travel path disposed below said advance-travel path;
- a plurality of linear motors for driving said treadboards;
- the improvement comprising selecting a number of said plurality of linear motors being driven in dependance upon an operating condition of said passenger conveyor.
In a method of operating a passenger conveyor comprising a plurality of treadboards interconnected in an endless manner and being movable along an advance-travel path and a return-travel path disposed below said advance-travel path;
- and a plurality of stators of a linear motor for driving said treadboards, said stators being disposed between said advance-travel path and said return-travel path and being arranged in the direction of travel of said treadboards;
- the improvement comprising continuously energizing one of said plurality of stators in an opposed relationship to a terminal end of said advance-travel path during operation of said passenger conveyor.
Dependencies are inferred from the claim text.