Boarding bridge with minute approaching device and shock absorbing part and operation method thereof

Abstract

The present invention relates to a boarding bridge with a minute approaching device and a shock absorbing part and an operation method thereof. The boarding bridge comprises a rotunda; a tunnel which contractably extends from the rotunda and forms a passage; a cab which is rotatbly coupled to the tunnel and connects the tunnel and aircraft; a main moving device which moves the cab by contraction and extension of the tunnel from a standby location of the cab and an adjacent location of the aircraft; and a minute approaching device which is provided in an end part of the cab and minutely moves the end part of the cab from the adjacent location to a contact location of the aircraft while the contraction and extension of the tunnel stops. Accordingly, the boarding bridge with the minute approaching device and the shock absorbing part and an operation method thereof according to the present invention enables an operator to operate the boarding bridge more comfortably, prevents damage to the boarding bridge or a fuselage, absorbs more shock and reduces or prevents a space between the boarding bridge and the fuselage when the boarding bridge moves upwards or downwards.

1 . A boarding bridge, comprising:
 a rotunda;   a tunnel which contractably extends from the rotunda and forms a passage;   a cab which is rotatbly coupled to the tunnel and connects the tunnel and aircraft;   a main moving device which moves the cab by contraction and extension of the tunnel from a standby location which the cab stands by to an adjacent location which the cap is adjacent of the aircraft; and   a minute approaching device which is provided in an end part of the cab and minutely moves the end part of the cab from the adjacent location to a contact location of the aircraft while the contraction and extension of the tunnel stops.   
     
     
         2 . The boarding bridge according to  claim 1 , wherein the main moving device comprises a wheel drive which is provided in a lower part of a lift column coupled to the tunnel and moving the tunnel upwards or downwards; and
 the minute approaching device comprises a fixed floor provided in a lower part of the cab toward the tunnel and a moving floor coupled in a direction facing the tunnel to move with regard to the fixed floor, and   the minute approaching device moves the moving floor with regard to the fixed floor.   
     
     
         3 . The boarding bridge according to  claim 2 , wherein the minute approaching device comprises a minute drive whose first side is fixed to the fixed floor and a second side is fixed to the moving floor to supply a force moving the moving floor; and
 a minute moving guide which guides the moving floor while the moving floor is moved by the minute drive.   
     
     
         4 . The boarding bridge according to  claim 1 , further comprising a canopy clamp which is provided in a first side of the minute approaching device and coupled to a canopy that seals between the cab and a fuselage to move along a movement of the minute approaching device. 
     
     
         5 . The boarding bridge according to  claim 1 , wherein the minute approaching device further comprises a shock absorbing member which prevents a transmission of shock arising from one of the boarding bridge and the aircraft to the other one of the boarding bridge and the aircraft, and
 the shock absorbing part comprises a main shock absorbing member which contacts the aircraft and absorbs shock, and an auxiliary shock absorbing member which is provided between the main shock absorbing member and the minute approaching device and absorbs shock.   
     
     
         6 . The boarding bridge according to  claim 5 , wherein the auxiliary shock absorbing member comprises an auxiliary spring which is coupled to the main shock absorbing member and absorbs shock, and a shock absorber guiding member which guides the main shock absorbing member and the auxiliary spring during a process of absorbing shock by the auxiliary spring. 
     
     
         7 . The boarding bridge according to  claim 2 , wherein the minute approaching device further comprises a shock absorbing member which prevents a transmission of shock arising from one of the boarding bridge and the aircraft to the other one of the boarding bridge and the aircraft, and
 the shock absorbing part comprises a main shock absorbing member which contacts the aircraft and absorbs shock, and an auxiliary shock absorbing member which is provided between the main shock absorbing member and the minute approaching device and absorbs shock.   
     
     
         8 . A boarding bridge, comprising:
 a rotunda;   a tunnel which contractably extends from the rotunda and forms a passage;   a cab which is rotatbly coupled to the tunnel and connects the tunnel and a fuselage;   a shock absorbing part which is provided not to transmit a shock arising from one of the cab and the fuselage to the other one of the cab and the fuselage; and   the shock absorbing part comprising a main shock absorbing member contacting the fuselage and absorbing shock, and an auxiliary shock absorbing member provided between the main shock absorbing member and the cab and absorbing shock.   
     
     
         9 . The boarding bridge according to  claim 8 , further comprising a main moving device which moves the cab by contraction and extension of the tunnel from a standby location which the cap stands by to an adjacent location which the cap is adjacent of the fuselage; and a minute approaching device which minutely moves the cab from the adjacent location to a contact location of the fuselage while the contraction and extension of the tunnel is stops. 
     
     
         10 . An operation method of a boarding bridge, the method comprising:
 moving a cab by a main moving device of the boarding bridge from a standby location of the cab to an adjacent location of a fuselage by contraction and extension of the tunnel, wherein the boarding bridge comprises a rotunda, a tunnel contractably extending from the rotunda and forming a passage and the cab ratably coupled to the tunnel and connecting the tunnel and the fuselage; and   moving the cab minutely by a minute approaching device from the adjacent location to a contact location of the fuselage while the contraction and extension of the tunnel stops.   
     
     
         11 . The method according to  claim 10 , further comprising absorbing a shock by a main shock absorbing member which contacts the fuselage and prevents a transmission of a shock arising from one, of the cab and the fuselage to the other one of the cab and the fuselage, and an auxiliary shock absorbing member which is provided between the main shock absorbing member and the minute approaching device and absorbs shock.