DE7311807U - Shelf ladder - Google Patents

Description

Utility registration - "shelf ladder"

(2 and. 5) is connected in such a way, el oil. ' the ladder at .load against the force of the between the lower agitator (6) and the ladder and, if applicable, the * upper chassis and the head acting return springs (o) approximately parallel to itself in the direction of the i.and is shifted.

2) shelf ladder according to claim l), characterized in that the ladder is partially extended beyond the pivot axis connecting the ladder and the upper chassis (1.1), at approximately the upper end of this extension (11) a bolt (12) directed towards the wall and this bolt contributes to load the conductor (l) engages in a perforated ring (15) assigned to a wheel (13) of the upper undercarriage.

3) shelf ladder according to claim 1), characterized in that the ladder (1) partially on the ladder and the upper The pivot axis connecting the chassis is also extended (11), approximately at the upper end of this extension one directed towards the wall Bolt or the like = carries and this bolt when the conductor is loaded in bores, toothed rails or the like Engages recesses of the running rail.

4) Shelf ladder according to claim 1) or the following, characterized in that d3ß the axes (7) of the rollers (6) of the lower Chassis are wholly or partially stored in elastic material (22) and the rollers when the ladder is loaded apply to this.

Zarges Leichtbau GmbH 8120 Weilheim

Chairman d. AR Dipl. Ing. Wallher Zarges

Managing Director HeMinuth Zarges Dipl. Volkswirt Peter Lückhoff

Dipl. Ing. Frank Zarges

HRB44571 RG Munich

Place of jurisdiction Woilheim

Tel. 0881 8377 Telex 059862

Shelf ladders are available in different designs. Standard ladders, which with an upper carriage on a rail

braked by the fact that the ladder rests on springs on the lower chassis and these springs are compressed when the ladder is used will. As a result of the displacement of the ladder in the direction of the ground, various braking devices are made brought into use.

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

In addition, it is not possible with this principle, the lower and to brake the upper landing gear at the same time, as the required Accuracy with regard to the parallelism of the running rail and floor is not guaranteed in practice and can also be difficult to equalize.

When the upper landing gear is unbraked, however, the ladder tends to move laterally with its upper end when the The user bends sideways over the ladder while standing up.

In order to avoid these disadvantages, which often lead to accidents, the invention proposes that the ladder with its upper and the lower running gear to be articulated via axes lying parallel to the running rail and between the lower running gear and the ladder and if necessary * also to be arranged between the upper chassis and the ladder springs so that the ladder is in use is moved parallel to itself in the direction of the wall and this movement when the ladder is unloaded by the Springs is reversed.

Zarges Leichtbau GmbH 8120 Weilheim

Chairman d. AR Dipl. Ing. Walther Zarges Managing Director Hellmuth Zarges Peter Lückhoff is a graduate economist Dipl. Ing. Frank Znrqes HRB 44571 RG Munich Place of jurisdiction is Weilheim

Tel. 0881 8377 Telex 059862

ZARGESbni ^

ν :: ·. ! "ν · ::.". "-" iLIGHTWEIGHT CONSTRUCTION

Utility model registration - "RegeHeiter"

Then the ladder is partly over the upper pivoting lizard extended and this extension is provided with a bolt, this can be inserted into a hole when the ladder is moved towards the wall.

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Rows of the running rail engage »This will make the upper Landing gear blocked.

The lower roller is braked in that it is pressed against part of the ladder by its rotational movement.

In the accompanying Fig. 1-3 an embodiment of this Concept of the invention shown.

1 serves to explain the kinematics of this system. The conductor body (1) is above the one running parallel to the wall

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(4) running, connected.

Aebäc (2) with the uuereü FehrWeirk (5) * which öüf de χ-

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

The spring (8) acting on the axis (7) of the floor chassis (6) holds the conductor body (1) in the rest position shown, the roller (6) touching the ground at point (9).

If the ladder is loaded, the roller (7) is pivoted against the force of the spring (8) so that it is at Point (lo) is in contact with the ground. This shifts the position of the conductor body (1) into position (la) and that of the Transverse axes (2 and 5) in (2a and

The rigid extension (11) of the conductor body (1) carries the bolt (12). If the extension (11) is brought into the laying (Ha) by moving the ladder, the bolt (12) engages in a hole circle _{assigned to the roller (13). Jk 9} * Leichtbau GmbH

8120 Wellhelm From. d. AR DIpI. Ing.Walther Zarges Managing Director Hellmuth Zarges DIpI. Economist Peter LOckhoff DIpI. Ing. Frank Zarges HRB 44571 RG Munich Place of jurisdiction Wellhelm Tel. 0681 ■ 8377 Telex 058862

ZARGESL ™ „_, _ 7LIGHTWEIGHT CONSTRUCTION?

Usage pattern report - "control ladder" and brakes the upper chassis (3) ·

Fig. 2 shows the same ladder in one embodiment. The lower end of the conductor body (1) carries the chassis (6) via the axis (5), the axis (7) of which is held in the driving position by the spring (8).

The retractable extension (14) is used as usual

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

- Fig. 3 is another embodiment of the lower end of the ladder (1). At this Beir el is the one below The roller (6) belonging to the chassis is embedded with its axis (7) in an elastic material (22). When the Head swivels the axis (7) around point (16) in the direction of this arrow (17) »lies with the surface (18) on dip to Conductor body belonging surface (19) on »whereby they are braked v / ird.

In addition, it is also braked by the surface (2o) in contact with the surface (21).

Protection claims

1) Shelf ladder with an upper (3) on a rail (4-) running and a lower running gear (6) running on the floor parallel to the wall, characterized in that the ladder with the two trolleys (3 and 6) via pivot axes lying parallel to the running rail

Zarges Leichtbau GmbH 8120 Weilheim

Chairman d. AR Dipl. Ing. Walther Zarges - LL - Managing Director Hi '"

- Bwlrt

. I Ing. HRB 44571 RQ Munich

-_ vors. α. nn uiui. uiy. ntmiitn £ .uiut * 9

νΟΊΊΟΛη - 4 · - Managing Director Hellmuth Zarges

/ i3 I InI / 1O -J - »*% Dipl. Volkswirt Peter Lückhoff

^{1 w} '' w W Π Ϊ, / / 3 Dipl. Ing.Frank Zarges

Place of jurisdiction Weilheim Tel. 0681 8377 Telex 059662

Claims (1)

Protection claims 1) Shelf ladder with an upper (J) on a rail (4)
running and a lower one (6) on the floor parallel
running gear to the wall, characterized in that
the ladder with the two trolleys (3 and 6) over
ocnwenkachsen lying parallel to the running rail ZarQcs Leichtbau GmbH 6120 Weilhuim Before », d. AR Dipl. Ing. Wnllhm Ziirqns Gescnal! 9luhrei HollmulM /£η.·'_)03 Dipl. Volkswirt Petisr Lucknoll Dipl. Ing. Flor-. Zard "S HRD «4 57! HC Miinchon Cn'fii'i 'fiSlnnd W'. '^ Ietm Tel. OBBI · 63 77 Telex OG98 «