FI118463B - Telescopic walkway - Google Patents

Description

118463

TELESCOPIC ACCESS BRIDGE

The invention relates to a telescopic passage or freight carrier movable in connection with a vehicle door opening having at least one stationary ground support pillar which supports the bridge so that the bridge is pivotable from said pillar to different directions, and the receiving end of the bridge in the direction required by the openings.

The walk bridge according to the above preamble is known from US 6,496,996. The walk bridge according to this publication is supported on a single ground pillar and the bridge is pivotable in different directions and its receiving end is adjusted by elevating the bridge to different angles so that its supported end When the bridge is telescopically extended to the required length, there is a counterweight attached to it to reduce the torque load on the column.

The disadvantage of the above-described bridge structure is that a counterweight is needed to allow the adjustable and extendable bridge to be built to a sufficient dimension and still to carry the weight gain due to the calculated number of passengers. The disadvantage of the structure is • · · *. * · * Still the fluctuation due to the support, which is not reduced by the counterweight.

··· * · • * ·· “* Walking bridges, which are equipped with wheels to drive the aircraft doorway and adjust the reception head to the right, are still known. height adjustment on the bridge frame.

Driveways are difficult to use in winter and on slippery roads and in high winds, as friction on the platform is not always sufficient to drive the bridge to the site. With bridge wheels • · ·: Telescopic elongation and shortening should also occur with pulling.

• ·: * · *: To eliminate the drawbacks and shortcomings of previously known walkways, a new walkway or freight bridge has been developed to solve the problems described above. The walkway or freight bridge according to the invention is characterized in that the bridge comprises a second ground-mounted and height-adjustable bracket closer to the receiving end, comprising a cantilever adjustable to support the receiving end of the bridge at different distances and in the direction of the angles.

An advantage of the walkway and freight bridge according to the invention is the large dimension achieved by the additional bracket of the bridge, which at the same time substantially reduces the wobble of the structure, even if it is directed in any intended direction and height. Despite the additional bracket, the footbridge can be adjusted so short that it fills the required exit outside the airport when it is idle. The additional bracket must also be located outside the protection area.

In the following, the invention will be explained in more detail with reference to the accompanying drawing, in which Figure 1 shows a ground-based strip bridge carrier according to the invention in the vicinity of a movable end.

Figure 2 shows a fixed ground end of a fiber bridge.

Figure 3 shows an airplane on the ground and two walkways in operating mode.

Fig. 1 shows a ground-mounted bracket, in which the bracket comprises cylinders 2 fixed to a concrete casting 1 * · ** ·, by means of which the bracket can be lifted to different heights.

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The bracket includes a horizontal bearing and a rotating device 3 around the center axis 17 • · · • · of the bracket. The bracket includes a cantilever arm 4 on which the other end of the cross member 11,12, movable in various ways, is supported.

In this solution, the cantilever arm 4 is at a fixed angle of inclination, e.g. 6 °. Protruding arm 4. . thus, it is possible to rotate freely on the bracket about the shaft 17. The rotating device, known as • t * • ♦ · *, was not shown. The cantilever arm 4 can be moved by a slider S · · [· * S in its direction in the upper end of the bracket. In addition, the spacer members 18 • · * ··· * associated with the walkway 11 can be moved on the surface of the protruding arm 4 in the direction of the arm. Moving is used e.g.

*, * toothed rack and motor, whereby the motor rotates the toothed wheel ·· ·: \ * which moves the toothed rack. Due to the design of the cantilever arm 4, the pivotable passageway 8 of the receiving end at the end of the bridge 11 is movable over the bracket 2, 3 so that their central axes 16, 17 coincide. For example, in this situation, the bridge has receded so that it is located outside the boundary of protection zone s. When the aircraft 7 enters the unloading station, the access bridge must be outside the protection area s. It is particularly advantageous that the central shafts 16,17 are aligned when the projection arm 4 is rotated in the desired direction. In this case, the translation is carried out with very little effort, since the telescopic joint is then neither elongated nor shortened.

The end of the walkway 11 has a prior art structure comprising a portion 8 to be fitted to the aircraft doorway, a circular swiveling passageway 9 and a guard bell 10 connecting the cylinder 9 and the walkway 11. If the walkway receiving end is to be obtained at different heights The cylinders can be further impacted by constructing a bracket partially below ground level, whereby the cylinders 2 can be extended with their lower end underground. When the cantilever arm on the bracket 2, 3 is pivoted, the bracket is raised or lowered or the cantilever arm 4 is moved in its direction or the spacer 18 is moved on the cantilever arm 4, its telescopic structure extends or shortens the travel bridge 11,12, respectively.

Figure 2 shows the other end of a walkway bridge which is fixedly supported by a ground column 14. The top end of the pillar 14 has a horizontal bearing 15 which allows the roller cylinder 13 to rotate in different directions and the structure also allows the passage bridge 12 to depart at different angles to one another 1 2 2 according to the invention.

Figure 3 shows an airplane 19 in the field and two access bridges 11, 12 according to the invention fitted in its doorways. The protection area is shown by the boundary line 20. According to current regulations, the protection area is · 7.5 meters from an aircraft, which must not have any fixed structures. The new bracket gives you a 7.5 meter reach for easy access. . can be reached from the bracket to the doorway, even if the doorway is located at different altitudes • · 1 • · · * ".

The transport bridge support according to the invention is suitable as a transport bridge * for all types of transport means, and also as a bridge for the transport of goods from a transport means whereby the telescopic part has a 2, e.g. a belt conveyor.

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Claims (7)

1. Telescopic travel or goods transport vane (11,12) which can be moved in connection with the doorway of the vehicle, which has at least one of the permanently grounded pillars ¢ 14) which carries the hatch (11,12) can be reversed from said pillar to extend the arrival end of different hali and lakas (8) can be adjusted at levels of the vehicle openings located at different heights and can be reversed in directions that said openings require, characterized in that the lakka comprises another closer arrival. positioning end (8) located in the ground and grounded by its height adjustable support (2,3) belonging to a ledge shaft (4) which can be adjusted to carry the arrival end (8) of the lance at different distances and directions from different angles of view seen from the front said carrier. 2. The blanket according to claim 1, characterized in that the ledge shaft (4) is mounted at a steadily inclined upward angle. 3. The blanket according to claim 1, characterized in that the angle of inclination of the ledge shaft (4) can be adjusted. The blanket according to claim 1, characterized in that the arrival end (8) can, thanks to the construction of the ledge shaft (4), be fed into the puncture by the carrier (2, 3) so that they are vertically rich. for example, the shafts (16) and (17) associated with rotation of the arrival end and the carrier, the vertical vertical lying point. • · * • * · • 5. The blanket according to claim 1, characterized in that the ledge shaft (4) can be extended in its direction thanks to, for example, its construction according to the telescopic principle. • * e ··. The sheet according to claim 1, characterized in that the carrier structure (18) belongs to the * *. * ··. the arrival end of the lila (11,12) can be removed by the bearing shaft (4). ·· • e · • * • · 7. The blanket according to claim 1, characterized in that the ledge shaft (4) can be removed in its direction supported by a sliding member (S) adapted in the upper part of the carrier (2, 3). • ·· ·· * «··· • * * · · *»