Patent ID: 6212724
Filing Date: 2001-04-10
Classification: B64F

Abstract:
A passenger boarding bridge for narrow body aircraft, comprising:a rotunda;a telescopic tunnel, which includes an outer tunnel and an inner telescoping tunnel and an outer tunnel capable of extending into and out of said outer tunnel, having a first end connected to said rotunda; anda cab, which is connected to a second end of said telescopic tunnel, having two openings provided on a right hand half of a floor of said cab lengthwise so as to divide said floor into a first floor and a second floor, wherein said cab further includes:two up-foldable hinged floor boards connected to said floor at said two openings respectively,gas springs provided on a back side of said first floor to flip up said hinged floor boards,a first cylinder moving an extension board forward and backward at a front end of said first floor,electrical locks provided on a right hand side of said second floor and at a bottom of an inner side of a right hand floor opening for locking said hinged floor boards when said hinged floor boards are in a horizontal position,a second cylinder provided on a back side of said second floor for pushing sideways a bumper at a front end of said second floor,a canopy being provided on said cab, a first piece of a frame of said canopy having two short plates, a bottom part of said frame being split but connecting with a hinge, a front part of said frame being covered with foam rubber, a top of said frame having attached a gas spring to open up said frame and allow it to assume a multisided shape, wherein a steel cable and pulley assembly used to close up said canopy is fixed on two sides of said cab and an actuator is affixed at a top of said cab,a small handrail, which is provided at a right of said cab above said respective hinged floor board, being affixed to said frame, wherein above said small handrail, a control panel is mounted on a shaft on said frame in such manner that said control panel is able to rotate around said shaft, and that a wire glass is installed on each of said two sides of said cab,a rotating frame to which said cab being connected through a roller system provided on a base of said cab and nylon sliding pads provided on an upper part of rear sides of said cab, wherein a cylinder is mounted on a base beam for driving said cab to move sideways in a transverse direction on said rotating frame, wherein said rotating frame is connected to said telescopic tunnel by means of two large pin shafts on a left frame of said telescopic tunnel and two sliding pads at a top and bottom of a right frame of said telescopic tunnel, said rotating frame being driven by a cylinder provided at a base thereof to rotate around said pin shaft from 80.degree. left to 15.degree. right, wherein a fan-shaped roof provided on top of said rotating frame and a fan-shaped floor platform provided at a bottom are both made of rolled channel steel, so that, during rotation, said channel steel slides along said sliding pads,pleated screens being provided between said rotating frame and said cab as well as on both side walls of said cab, andfolding screen walls provided between said rotating frame and telescopic tunnel being made of glass panels.