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WO1990005665A1 - Passerelle de chargement pour avions - Google Patents

Passerelle de chargement pour avions Download PDF

Info

Publication number
WO1990005665A1
WO1990005665A1 PCT/AU1989/000503 AU8900503W WO9005665A1 WO 1990005665 A1 WO1990005665 A1 WO 1990005665A1 AU 8900503 W AU8900503 W AU 8900503W WO 9005665 A1 WO9005665 A1 WO 9005665A1
Authority
WO
WIPO (PCT)
Prior art keywords
contact member
deformable contact
leaf spring
supports
aircraft
Prior art date
Application number
PCT/AU1989/000503
Other languages
English (en)
Inventor
Allan J. Wells
Original Assignee
Rheem Australia Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rheem Australia Limited filed Critical Rheem Australia Limited
Publication of WO1990005665A1 publication Critical patent/WO1990005665A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
    • B64F1/00—Ground or aircraft-carrier-deck installations
    • B64F1/30—Ground or aircraft-carrier-deck installations for embarking or disembarking passengers
    • B64F1/305—Bridges extending between terminal building and aircraft, e.g. telescopic, vertically adjustable

Definitions

  • Aircraft loading bridges have become very familiar at major city airports and provide personnel access to aircraft from elevated passenger lounges.
  • the terminology used for aircraft loading bridges or parts of them includes aircraft vestibule and aerobridge, the latter term being adopted hereafter in this specification.
  • This invention particularly relates to details of the floor level aircraft-contacting surface of aerobridges and improvements thereto.
  • the traditional design of bumper involves use of a "U" shaped fire rated flexible section of elastomeric material attached rigidly to the leading structural member of the vestibule floor. This requires deflection of the bumper material to cope with aircraft movement and fuselage curvature.
  • the flexible elastomeric material must be rigid enough to allow passengers to walk on it without the passengers' feet becoming caught between the bridge and the aircraft.
  • This required rigidity of the bumper in the vertical direction tends to be accompanied by a lack of desired flexibility and conf ormability as a result of forces applied in the horizontal direction.
  • the horizontal forces required to cause the bumper material to conform in the desired manner have be found to be high enough to be a cause of concern as regards the possibility of denting the aircraft fuselage skin.
  • the present invention has the object of providing full sealing contact against both wide and narrow-bodied aircraft without exceeding the recommended contact pressures and without reducing unacceptably the vertical rigidity required to not deform excessively downwardly under the weight of a person standing on the bumper.
  • the invention consists of a deformable contact member forming an aircraft fuselage contacting lower edge of an entry vestibule of an aerobridge for providing access between an aircraft and an airport terminal, comprising a flexible bumper of elastomeric material attached to a horizontally outward side of an elongate leaf spring and wherein the deformable contact member is attachable horizontally outwardly of a rigid structural member of a floor of the entry vestibule; and wherein the deformable contact member comprises in combination the flexible bumper, the leaf spring, the leaf spring having high stiffness in the vertical direction and low stiffness in the horizontal direction and, flexure means joining the two end regions of the leaf spring to the structural member.
  • the flexure means comprises a pair of first supports attached adjacent to each end of the leaf spring and a pair of second supports fixed to the rigid structural member and location means allowing location and relative rotation about vertical axes of respectively co-operating pairs of first and second supports.
  • the location means comprises link means providing for both rotation and translation in a horizontal plane with respect to the first and second co-operating pairs of supports.
  • the link means comprises a pair of horizontally mounted bars pinned at each end of each bar to the respective cooperating pairs of supports and wherein additional spring means is provided between the deformable contact member and the rigid structural member.
  • the additional spring means comprise a pair of compression springs each one located adjacent one end of the co-operating pair of supports and wherein the springs are disposed to be compressed by horizontal movement of the deformable contact member toward the rigid structural member.
  • Fig. 1 is a schematic representation of prior art rigid bumper shown in plan and end elevation views.
  • Fig. 2 is an embodiment of the present invention, shown schematically, in plan view.
  • Fig. 3 is a second embodiment of the invention, shown schematically, in plan view.
  • a prior art aerobridge bumper 10 is shown in which a "U" shaped flexible elastomeric bumper 12 is fixed to a rigid support 14.
  • the length of the bumper is slightly greater than the width of a commercial aircraft door.
  • the deformable contact member 16 comprises a "U" shaped flexible bumper 12 as used in prior art arrangements.
  • the bumper 12 is attached to a leaf spring 18.
  • Fixed near each end of the leaf spring is a pair of pivot members 20 and 22.
  • the pivot members comprise a pair of supports 24 and 26 attached rigidly to the leaf spring 18 and a pair of supports 28 and 30 attached to a rigid leading structural member 32 of the floor of the vestibule region of the aerobridge.
  • a pair of pins 32 and 34 co-operatively locates each pivot pair, limiting upward or downward movement but allowing pivoting around the vertical (in use) axes.
  • leaf spring 18 bends due to the contact force applied by contact with the body (fuselage) of the aircraft. Due to deflection of the leaf spring and pivotal rotation around the longitudinal axes of pins 34 a desirable limitation of contact pressure commensurate with good sealing of the bridge with the aircraft opening is obtained.
  • FIG. 3 A highly preferred embodiment of the invention is illustrated in Fig. 3.
  • the deformable contact member 36 has bumper 12 attached horizontally outwardly (in use) of leaf spring 18.
  • support pair 24 and 26 are attached to the rigid leading structural member 32 of the floor of the vestibule region of the aerobridge.
  • Support members 24 and 26 are horizontally offset from support members 28 and 30 and inter-connected in a co-operative arrangement by means of a pair of horizontal arms 38 and 40, pinned by vertical pivot pins 42, 44, 46 and 48.
  • a pair of compression springs 50 and 52 having suitable guides (not shown) interconnect each support 24 and 26 to a part of the rigid structure of the floor of the vestibule of the aerobridge.
  • the leaf spring is assembled to the bumper with a controlled amount of curvature in the reverse direction to that curvature illustrated in Fig. 3. An amount of curvature of 20 to 30 mm at the centre over a length of 3.53 metres has been found preferable.
  • the illustrated curvature of Fig. 3 is indicative of the shape the deformable contact member 36 in contact with an aircraft fuselage 54.
  • a suitable way of achieving the required curvature of the leaf spring and bumper is by fixing the rubber bumper to the leaf spring using brackets (not shown) fixed to the leaf spring at right angles to the plane of the leaf spring, to which is bolted each side of the width of the "U" shape forming, on assembly, the flexible bumper, the holes in the bumper material being formed after pre-bending the leaf spring as required with the brackets having pre-drilled holes so that the pre-bend is maintained by relative tension in the initial location of the flexible bumper to the leaf spring.
  • a leaf spring made of 100mm x 10mm x 3530mm long SAE1074 cold rolled annealed spring steel has been found highly effective in experimental trials.
  • the lexible contact member comprised of this and a "U" shaped rubber bumper, and pivot means as illustrated in Fig. 3, provided contact force less than 1 N/mm, in other words 10 to 12% of the force of the prior art bumper and about 50% below the maximum force specified by Boeing.
  • the seal created along the bottom of the fuselage of a narrow-bodied aircraft was nevertheless complete and without gaps.
  • the flexible contact member as shown in Fig. 3 may be limited in its travel inwardly and outwardly from the fuselage by a fixed stop associated with the guide rods (not showa) associated with the compression springs 50 and 52.
  • the guide rods limit the amount of outward travel of springs 50 and 52 and the amount of inward travel tending to compress the bumper and compression springs may be limited by a push rod (not shown) acting on a limit switch (not shown) which switches on or off the motor or effector tending to urge the aerobridge against the side of the aircraft.
  • the side walls and roof of the bridge are formed of a concertina like structure and are not shown as they form no part of the present invention.
  • the pivoting arrangement with coil springs may be replaced by a flexure means of equivalent ef ect, such as approximating a "Z" shape, which could, at each end, replace the two supports, horizontal bar, pivot pins and compression spring by a single leaf type spring having a high stiffness in the vertical direction and a low stiffness in the horizontal direction.
  • a flexure means of equivalent ef ect such as approximating a "Z" shape

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Tires In General (AREA)

Abstract

L'élément de contact déformable décrit (16), qui sert à former le bord inférieur en contact avec un fuselage d'avion d'un vestibule d'accès d'une passerelle d'aéroport permettant le passage entre un avion et un terminal d'aéroport, comprend un butoir flexible (12) en matériau élastomère, fixé à un côté extérieur horizontal d'un ressort à lames allongé (18). L'élément de contact déformable (16) peut être fixé horizontalement à l'extérieur d'un élément structurel rigide d'un plancher du vestibule d'accès au moyen d'organes de flexion (20, 22). Le ressort à lames (18) se caractérise par une forte rigidité dans le sens vertical et par une faible rigidité dans le sens horizontal. Le contact entre l'élément de contact déformable (16) et le fuselage peut s'effectuer avec une adaptation suffisamment étroite pour assurer une assise ferme, une exclusion suffisante de l'air et une force de contact minimum entre l'élément de contact déformable (16) et le fuselage.
PCT/AU1989/000503 1988-11-22 1989-11-21 Passerelle de chargement pour avions WO1990005665A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPJ159888 1988-11-22
AUPJ1598 1988-11-22

Publications (1)

Publication Number Publication Date
WO1990005665A1 true WO1990005665A1 (fr) 1990-05-31

Family

ID=3773529

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1989/000503 WO1990005665A1 (fr) 1988-11-22 1989-11-21 Passerelle de chargement pour avions

Country Status (1)

Country Link
WO (1) WO1990005665A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1925552A4 (fr) * 2004-06-08 2011-08-24 China Int Marine Containers Appareil de planche de transition pour passerelle d'embarquement et lame de ressort de celui-ci

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB916037A (en) * 1960-06-20 1963-01-16 Stanray Corp Track mounted telescoping loading and unloading ramp
GB1140499A (en) * 1966-12-20 1969-01-22 Aviolanda Mij Voor Vliegtuigbo Improvements in or relating to airplane gangways
GB1204615A (en) * 1968-02-07 1970-09-09 Stanray Corp Canopy for airplane loading and unloading gangway or ramp
US3639934A (en) * 1969-09-25 1972-02-08 Boothe Airside Services Canopy apparatus
US3641604A (en) * 1970-05-27 1972-02-15 Boothe Airside Services Closure apparatus
US3693204A (en) * 1970-09-24 1972-09-26 Boothe Airside Services Closure apparatus
US3703737A (en) * 1971-05-24 1972-11-28 Boothe Airside Services Canopy apparatus
GB2118118A (en) * 1982-02-22 1983-10-26 Huebner Gummi & Kunststoff Bellows for sealing aircraft passenger gangways

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB916037A (en) * 1960-06-20 1963-01-16 Stanray Corp Track mounted telescoping loading and unloading ramp
GB1140499A (en) * 1966-12-20 1969-01-22 Aviolanda Mij Voor Vliegtuigbo Improvements in or relating to airplane gangways
GB1204615A (en) * 1968-02-07 1970-09-09 Stanray Corp Canopy for airplane loading and unloading gangway or ramp
US3639934A (en) * 1969-09-25 1972-02-08 Boothe Airside Services Canopy apparatus
US3641604A (en) * 1970-05-27 1972-02-15 Boothe Airside Services Closure apparatus
US3693204A (en) * 1970-09-24 1972-09-26 Boothe Airside Services Closure apparatus
US3703737A (en) * 1971-05-24 1972-11-28 Boothe Airside Services Canopy apparatus
GB2118118A (en) * 1982-02-22 1983-10-26 Huebner Gummi & Kunststoff Bellows for sealing aircraft passenger gangways

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1925552A4 (fr) * 2004-06-08 2011-08-24 China Int Marine Containers Appareil de planche de transition pour passerelle d'embarquement et lame de ressort de celui-ci

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