DE2315618A1 - SHELVING MANAGER - Google Patents

Description

P2 tentanmeldung - Realleiter Control ladders are in different Versions known control ladders, which euf a rail with an upper chassis and walk on the ground with a lower chassis, are usually slowed down by the ladder rests on springs on the lower chassis and these springs when in use the conductor will be compressed. The resulting displacement of the ladder Various types of braking devices are used in the direction of the ground.

The disadvantage of all these designs is the fact that there is braking power in the longitudinal direction of the ladder only the corresponding component from the weight of the ladder and the load minus the force required to compress the springs Available.

In addition, it is not possible with this Prinsp, the lower and upper To brake the chassis at the same time, as the accuracy required for this with respect to the parallelism of the track and floor is not guaranteed in practice and also difficult to balance.

When the upper undercarriage is unbraked, the ladder tends to move with its upper end to move sideways when the user is standing on top leans sideways over the ladder.

In order to avoid these disadvantages, which often lead to accidents, is proposed according to the invention, the ladder with its upper and lower chassis to be articulated via axes lying parallel to the running rail and between the lower chassis and the ladder and, if necessary, between the upper chassis and to arrange springs on the ladder so that the ladder is parallel to itself when in use itself is moved in the direction of the wall and this movement is relieved of the load on the ladder is reversed by the springs.

Patent application - "Shelf ladder" The ladder is then partially over the upper pivot axis is extended and this extension is provided with a bolt, can this when moving the ladder to the wall with a perforated ring of a roller of the upper running gear or into a row of holes on the running rail. Through this the upper landing gear is blocked.

The lower roller is braked by the fact that it rotates is pressed against part of the ladder.

In the accompanying Figs. 1-3, an embodiment of this inventive concept is shown shown.

1 serves to explain the kinematics of this system.

The conductor body (l) is about the axis running parallel to the wall (2) connected to the upper chassis (3), which runs on the rail (4).

The lower chassis (6) is on the axis running parallel to the wall (5) connected to the conductor body (1).

The spring (8) acting on the axis (7) of the floor hoist (6) holds the conductor body (1) in the drawn rest position, the role (6) at point (9) touches the ground.

If the ladder is loaded, the force of the spring (8) the roller (7) pivoted so that it has contact with the ground at point (lo). Through this the position of the conductor body (1) shifts into position (la) and that of the transverse axes (2 and 5) in (2e and 5a).

The rigid extension (11) of the conductor body (1) carries the bolt (12). If the extension (11) is moved into position (lla) by moving the ladder brought, the bolt (12) engages in one of the roller (13) assigned perforated ring Patent application -and brakes the upper landing gear (3).

Fig. 2 shows the same ladder in one embodiment.

The conductor body (1) carries the lower end via the axis (5) Chassis (6), the axis (7) of which is held in the driving position by the spring (8).

The retractable extension (14) is usually used for shortening the ladder so that it can be placed against the wall when not in use and has with nothing to do with the system described here. This part belonging to the conductor body (14) carries the extension (11) with the bolt (12), which is inserted into the perforated ring (15) the roller (13) engages as soon as the ladder moves from position (1) to position (le), such as is described with reference to FIG. 1, is shifted.

Fig. 3 is another embodiment of the lower end of the Head (1). In this example, the roller (6) belonging to the lower chassis is embedded with its axis (7) in an elastic material (22). Under pressure the head pivots the axis (7) around point (16) in the direction of arrow (17), sets with the surface (18) on the surface (19) belonging to the conductor body, whereby it is braked.

It is supplemented by the surface (20) being applied to the surface (21) braked.

Claims (4)

Claims X Shelf ladder with an upper (3) running on a rail (4) and a lower chassis (6) running on the floor parallel to the wall, thereby characterized in that the ladder with the two trolleys (3 and 6) over parallel swivel axes lying to the running rail Patent application - (2 and 5) is connected in such a way that the ladder when loaded against the force of the between the lower trolley (6) and the ladder and, if applicable, the upper trolley and the ladder acting return springs (8) approximately parallel to itself in the direction of the wall is moved. 2) shelf ladder according to claim 1), characterized in that the ladder partially beyond the pivot axis connecting the ladder and the upper chassis is extended (11), approximately at the upper end of this extension (11) one to the wall directional bolt (12) and this bolt when the ladder (1) is loaded in a perforated ring (15) assigned to a wheel (13) of the upper chassis engages. 3) shelf ladder according to claim 1), characterized in that the ladder (1) partly via the swivel axis connecting the ladder and the upper chassis is also extended (11), approximately at the upper end of this extension one to the wall Directional bolt or the like. Carries and this bolt when the ladder is loaded in Bores, toothed rails or similar recesses of the running rail engages. 4) Shelf ladder according to claim 1) or the following, characterized in that that the axes (7) of the rollers (6) of the lower chassis in whole or in part are stored in elastic material (22) and the rollers when loaded Head to this one. Blank page