FI119365B - Telescopic walkway - Google Patents

Description

119365

TELESCOPIC ACCESS Bridge

The invention relates to a telescopic transport or freight bridge movable in connection with a vehicle door opening having at least one fixed ground support pillar which supports the bridge so that it is pivotable from said pillar to different directions and the receiving end of the bridge demand direction.

The walk bridge according to the above preamble is known from US 6,496,996. 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 the · · fluctuation due to its support, which is not reduced by the counterweight.

It is still known to have wheeled access bridges • · • · that run into the airplane doorway and adjust the reception head to the right • · · * ... height adjustment on the bridge frame through.

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Driveways are difficult in winter, on slippery roads and in high winds. use because the friction of the platform is not always sufficient to drive the bridge. The wheels of the bridge • · • · «,, *. the telescopic extension should also have telescopic extension and shortening.

7 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, 2,19365 closer to the means of transport, a bracket deflection including a rotatable platform, which is arranged on a pivoting base, that said vertical bracket is movable with its support base on the turntable, preferably in the horizontal direction of the turntable radius, and that the vertical bracket is still pivotable about its vertical axis due to its bearing base.

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. An additional bracket according to the invention is established e.g. at an airport outside the protected area. Although the footbridge in use can extend considerably from the additional bracket to, for example, 10 m inside the protection area, it can also be pulled completely outside the protection area, which is a requirement at airports.

In the following, the invention will be explained in more detail with reference to the accompanying drawing, in which Figure 1 illustrates an underground walkway carrier according to the invention in the vicinity of a movable end of a bridge.

Figure 2 is an oblique view of a fixed ground rotary platform of a walkway.

Fig. 3 is a partially sectional side view of the rotary base.

"Figure 4 shows another embodiment of a rotating pad.

··· T *. Fig. 5 is an oblique view of the turntable body and the vertical support.

• · ♦. ♦ ·· [Figure 6 shows a top view of the turntable body.

Figure 1 shows the airport terminal where Airplane 1 has arrived and has been stopped exactly in its assigned position. A telescopic passenger bridge 2, 3 is driven to the machine door such that the receiving end 16 is connected to the door opening. Passage bridge 2, 3: ***; the other end, known per se, is based on a pillar 7 established in the ground 6. From this pillar • · ♦: v, the footbridge can leave in different directions if desired. Another bracket according to the invention • · •. ♦ ··. supports a footbridge outside protected area 17. The second bracket consists of • ♦ • · · a flat and circular rotating base 4, the non-rotatable portion of which is fixedly formed * · ♦ • · *. *. to ground 6. Rotate platform 4 to different positions as needed. • · · • ·· with a drive motor associated with chassis structures. The support base of the vertical supports 5 3 119365 is arranged on the base 4 so that the vertical supports 5 can be moved horizontally on the base, preferably from the edge towards the center of the base, i.e. in the radial direction.

Figure 2 illustrates in more detail the operation of the rotating platform according to the invention. The telescopically height-adjustable vertical supports 5, 8 are rigidly supported on the support base 10, and the support base 10 is a flat rotatable bearing which is pivotable about its vertical axis so that the orientation of the vertical supports 5, 8 can be adjusted. The support base 10 is, for example, a rotatable turntable having a toothed ring, as in the case of work machines, for example excavators. The support base 10 is also arranged to move horizontally on the rails 9, whereby the vertical support 5, 8 receives a horizontal movement. The rotating platform 4 is preferably at least 6 m in diameter, even more so, such as 10 m. In practice, the required horizontal movement along the rails 9 is thus of the radius of the rotating platform. If the rails 9 are the entire diameter of the turntable 4, it is not necessary to rotate the turntable all the way to provide maximum movement paths for the vertical brackets.

Figure 3 shows an example of a rotating platform according to the invention. The base is rotatably supported on an annular rail profile 14. The transmission from the drive motor 18 to the wheels 15 is shown by means of a chain 19. The rotatable bearing support 10 ... moves along the rails 9 by means of a screw bar 11 rotatable by the motor 13. The upper lid 10b of the support base 10 • · • · * rotates with respect to the lower one and the lower lid 10a is arranged to run on rails 9T \. The upper lid 10b is known to rotate per se e.g. .

··· ·· • · • 1 ·. ···. The vertical supports 5, 8 are fixedly fixed to the upright upper cover 10b. It is of course possible that the vertical supports 5, 8 are fixed to the cover 10b by means of pivot points and that they can be tilted somewhat in both directions, for example by means of hydraulic cylinders. For example, when the diameter of the turntable 4 is, for example, 10 meters, · ♦ · .Λ, by rotating the turntable 1801 the displacement head 16 is moved about 10 meters, • ·] ···. when the slides 9 are initially in the direction of the walkway. With different rotation angles of the rotation tray 4 and different rails 9 of the support base 10, a receiving end is obtained. \ 16 to be moved to the desired lateral positions and by adjusting the vertical bracket 5, 8 to various heights.

119365 4

In the embodiment of Figure 4, there is a separate turntable housing under the flat protective cover 4, wherein the protective cover 4 is lightweight and includes hatches for access to the drive mechanisms beneath the base. The vertical frame 5, 8 has a lower beam 26 which is rotated on a turntable 24.

In Figure 5, the protective cover 4 is removed and the turntable body is exposed. The turntable is secured to the ground by immersing, for example, an anchoring foot on which a turntable 23 is mounted, whereby turntable rotation can be accomplished either by pulling on the wheels 25 or by a rotating device connected to the turntable 23. The turntable body comprises beams 21 on which the vertical body 5, 8 can be moved by means of slides 22 sliding along the beams 21. The displacement movement can be effected, e.g., as shown in Fig. 3 by means of a transfer screw 11, a nut 12 and a motor rotating the screw 13. Although no power unit and drive mechanism are shown in Figures 5 and 6, it is understood that, as is known per se, the wheels 25 can be driven by motors, e.g., hydraulic motors, the vertical frame 5,8 being pivotable by part of the tooth ring. Similarly, a rotary table 23 in the rotation center can be connected to a gear ring of sufficient diameter so that the rotation body can be rotated from the rotation center by means of a motor and a gear.

The bridge support according to the invention is suitable as a bridge for all means of transport and also as a bridge for the transportation of goods from the vehicle if the bridge has a belt conveyor.

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Claims (6)

1. Telescopic trolley or goods transport plank (2, 3) which can be moved in connection with the doorway of the vehicle, which plank has at least one of the firmly-supported support pillars (7) which carries said plank so that the plank can be turned from said column to extend can be adjusted at levels of vehicle openings located at different heights and can be reversed in directions as said openings require, characterized in that the plank comprises another plank carrier arrangement (4, 5, closer to the vehicle). 8) belonging to its vertical axis most conveniently when the ground surface is rotated adapted and intended to rotate (4) on which is placed on a stored support (10); (24) the vertical support of the plank (S, 8) so that said vertical carrier can be moved with its support support (10); (24) on the support support (4) in the horizontal direction most preferably in the direction of the radius of the support support (4) and Furthermore, the ikala carrier can be rotated due to its stored support base (10); (24) around its vertical axis. The pan according to claim 1, characterized in that vertical supports can be adjusted in the vertical direction for lifting and lowering the board (2, 3). 3. The board according to claim 1, characterized in that vertical supports (S, 8) can be moved ... on the rotating support (4) at least the distance whose length is the same as the radius of the support (4). e · ·· • a • · a • ··! ./ 4. The board according to claim 1, characterized in that the extension / shortening of the telescopic board can be done by moving the vertical support (S, 8) on the support (4) in «mm, ·· *. horizontal direction. m m • mm 5. The board according to claim 1, characterized in that the diameter of the rotary support ¢ 4) is f · · • ·. ···. at least 6 meters. • • ·· • m • a m mmm 6. The board according to claim 1, characterized in that the support base (10) can be moved by means of a power device, such as floating screw (11) and motor (13) or a hydraulic | cylinder at the bottom of the swivel base (4) adapted slide rails (9); (21) or equivalent •