CZ20001191A3 - Ladder having lateral auxiliary supports for working platform - Google Patents

Abstract

The novel side auxiliary platform support provides a surface for standing or walking on at the side of a simple ladder erected against a support or a free-standing extendible multipurpose double ladder. The support can be folded out and folded away and has rails which can also be folded away. The invention also prevents the ladder from tipping or slipping in the case of a simple ladder or rocking in the case of an extended double ladder. The support is configured in such a way that the side auxiliary platform can be completely folded out and folded away on the side of a ladder on which it is mounted. Wall running rollers are also provided on the front surfaces of the side auxiliary platform in order to make it easier to push an extendible simple ladder on which the side auxiliary platform is mounted up a wall. Integrated wall supports prevent a simple ladder from canting when the side auxiliary platform is folded out.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to lateral auxiliary supports for a work platform for positioning at the upper end of a ladder to provide ascents and descents, with a floor articulated to the ladder and rigidly positioned sideways in use, and wall supports and castors on the wall big wheels are arranged.

BACKGROUND OF THE INVENTION

Lateral auxiliary supports for a work platform for positioning at the upper end of a ladder of this kind are known from EP-A-0 045 140.

Ascending and descending onto and out of roofs, entering and exiting into and out of window openings or other high-altitude sites using a ladder is not currently completely safe. For example, a person descending from a flat roof to an attached ladder must first approach to the very edge of the roof in order to grab the protruding upper end of the ladder and then turn 180 ° to stand with his foot on the ladder. Only then can that person begin to descend.

hold, descend

The risks are an uncertain approach to the roof edge, catching a side-sliding ladder, which must then also be done, and turning the body 180 ° so that the ladder can go backwards. The risk of a person collapsing is therefore very high in these circumstances.

SUMMARY OF THE INVENTION The object of the invention is to completely eliminate dangerous moments, i.e. approaching the roof edge, sliding the ladder to the side and rotating the body 180 ° in this hazardous area.

SUMMARY OF THE INVENTION

This problem is solved and the drawbacks of known solutions of this kind largely eliminate the lateral auxiliary supports for the work platform for positioning at the upper end of the ladder to ensure ascending and descending, with a floor which is articulated to the ladder and fixed sideways in use and with wall supports and wheel rollers on the wall, the large wheels according to the invention being arranged for crossing obstacles, the principle being that the 'deck' in the assembled state on the ladder relative to the ladder-mounted support elements is displaceable in its longitudinal direction and in each position It can be locked in such a way that, irrespective of the instantaneous application resulting from the inclination of the ladder, which is attached to the horizontal edge of the roof, the floor is adjustable in a position that extends beyond the roof edge and is substantially parallel to the roof.

Advantageously roller rollers, guide wheels or rolling balls, which can be replaced by large wheels, are attached to the front sides of the side auxiliary supports for the working platform.

Advantageously, extendable and plug-in beams are provided on the front sides of the side auxiliary supports for the working platform, which are provided with adjustable spacers and rollers or rollers in the form of rollers.

Sliding and transversely adjustable beams, which can be bent at their lower ends and provided with traveling wheels, are preferably mounted on the underside or on the outside.

It is preferred that one side is supported on adjustable length swiveling struts and the opposite side is slidable, lockable or firmly supported on the support brackets.

The side auxiliary supports for the working platform preferably rest on the support brackets and are supported only on the underside.

The lateral auxiliary supports for the working platform can be fastened to the longitudinal beams and / or the rungs of the ladder by clamping devices or plug-in or suspension devices.

The lateral auxiliary abutments for the work platform may be attached by suspension to the support beams and / or in conjunction with opposing lateral auxiliary abutments for the work platform.

The railing is preferably retractable up to approximately half its height and is then foldable onto the floor.

In addition, it is also advantageous if the railing can be telescopically extended and retracted in a horizontal or vertical direction.

Said railing is preferably provided at the ends with individual plug-in and extendable horizontal struts which can also be connected to each other.

A peripheral rail or rail may be attached as an edge to the outer edge of the floor.

Furthermore, it is advantageous if - at the ends of the railing - adjustable wheels or traveling balls are fixed in all directions, which can also be replaced by roller-shaped wheels or guide wheels, possibly also by large wheels to facilitate movement.

Preferably, the floor has a shape such that one end face has a smaller longitudinal dimension than the opposite end face such that the longitudinal side extends obliquely.

_. . - It can be. Advantageously, if the side support for the work platform is mounted only on one side of the ladder and the other side of the ladder is secured by the ladder support against the wall.

The floor is preferably telescopic, rolled or collapsible.

Said floor may have a solid or sieve surface, may rest on a supporting frame, be mounted on a ladder self-supporting without a frame, or be pluggable.

The lateral auxiliary supports for the working platform can be pulled up and locked on the ladder by means of guide and / or support pulleys, chain mechanisms, slip locks and rope suspensions, which are arranged on the underside of the ladder with respect to the mounting angle.

A hinged or sliding aperture can be provided between the two mounted side auxiliary supports for the work platform, which is designed as a support surface or a manhole.

Support brackets, flooring, swiveling struts and railings can be mounted on site individually as unrelated elements.

Both or only one side support for the work platform can be folded in or out.

Adjustable length swiveling struts may be articulated to the ladder rungs, the support brackets may be provided with support struts and may be attached to the ladder rungs by clamping devices.

Preferably, the floor is in the form of a rectangle, oval, trapezoid or parallelogram.

Furthermore, it is advantageous if at the lower or outer side of the lateral auxiliary supports for the working platform are articulated, movable and detachable in the longitudinal and lateral direction, extendable and insertable supports, which are fixed to the ladder by means of folding telescopically extendable connecting struts .

The railing is preferably pluggable and / or tiltable.

The support brackets may be provided with wheels in the region of the bearing surface.

Finally, it is advantageous if the floor is supported rotatably or articulated on the support bracket, and the pivotable strut is fixed with adjustable length and position in the lateral direction below or above the floor and / or the support bracket and is detachably attached to the longitudinal beams or rungs of the ladder; articulated.

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The solution according to the invention completely eliminates the dangerous moments, i.e. approaching the roof edge, sliding the ladder to the side and turning the body 180 ° in this dangerous area.

The lateral auxiliary supports for the working platform according to the invention can additionally be mounted on any existing ladder.

Due to the solution according to the invention, the use of a ladder which is placed at high altitudes, such as roofs, balconies and window openings and the like, is no longer dangerous.

It also eliminates the danger of dangerous approaching the roof edge, the risk of the ladder sliding laterally and the body rotating 180 ° on the roof edge, which could otherwise easily lead to a fall.

As a result of the solution according to the invention, an access surface is provided directly in the area of the danger of falling next to the ladder and the ladder is simultaneously secured against reversing and sliding in the lateral direction.

BRIEF DESCRIPTION OF THE DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS The invention will be further elucidated with reference to the accompanying drawings, in which:

- a side-mounted side support for the work platform mounted on both sides of the ladder;

A ladder with side auxiliary supports for the work platform when used on the roof, as seen in Fig. 2

from the side;

FIG.

a ladder with a side-mounted side boom for the work platform and a side-mounted side boom for the work platform on one side when used in a narrow window opening, front view;

FIG. 4 is a side view of a side auxiliary support for a work platform mounted on a port ladder and resting on a wall;

FIG. 5 is a front elevational view of a raised multi-purpose double ladder with a side-mounted support platform mounted as a free-standing working platform;

FIG.

a side view of an extended multi-purpose double ladder with a side-mounted work platform support mounted as a free-standing work platform;

Fig. 7 is a plan view of an extended multi-purpose double ladder with a side-mounted support for the working platform mounted as a free-standing working platform;

Fig. 8 is a front view of a retracted multi-purpose double ladder with the side auxiliary support for the working platform mounted and folded out;

FIG. 9 is a side view of the multipurpose double

4 ··· ·

- 8 ladder with mounted and folded out side auxiliary support for work platform;

FIG. 10 shows a fully retracted and folded multipurpose double ladder with the side platform support mounted and lowered and the supports and the railing retracted and lowered; and

Fig. 11 shows the extension of the multi-purpose double ladder when used as a ladder with the side auxiliary support folded out for a working platform with large casters when the obstacle passes _{over the} body. - ............

DETAILED DESCRIPTION OF THE INVENTION

On both sides of the ladder, support brackets 1 are attached to its longitudinal beams. On these support brackets 1, the shelves 2 are displaceably and lockable. One third of the length of the shelf 2 is in front of the brackets 1 in the direction of the ladder. wall or roof. In the region of the two thirds of the length of the floor 2 there is one or more swinging struts 3 which are articulated on the upper regions of the longitudinal beams of the ladder and on the inner longitudinal sides of the floor 2.

The support brackets 1 thus carry the floor 2 from below and the pivot struts 3 from above. In this way, the tilting effect is avoided and a stable mounting or suspension of the floor 2 is ensured. In addition, the floor 2 can be displaced in the longitudinal direction in this embodiment and at the same time also reliably used as a slab resting on the roof edge. In addition, the ladder is thus effectively secured against overturning and slipping. The floor 2 can be firmly locked in any displacement position.

On the front side of the side aids for the working platform towards the wall, rollers 4 are arranged in the form of cylinders according to FIG. Adjustable traveling wheels 5 are also provided at the ends of the upper rails.

Thanks to the castors 4 and the castors 5, the wall can be moved even with the side auxiliary supports for the working platform completely mounted. Extending beams 6 which extend transversely to the longitudinal direction and are provided with adjustable spacers and castors are also provided on the wall facing the front side of the auxiliary supports for the working platform.

In addition, on the lower outer sides of the lateral auxiliary supports for the working platform, displaceable beams 7 are provided in the longitudinal and lateral directions, which are bent at the lower ends and are adjustable in the vertical direction. The advantage of these sliding and adjustable curved beams 6 and 7 is that they enable leveling at the ladder installation as well as adjustable leaning against the wall.

When used in tight spaces, such as toilet and bathroom windows, one side support for the work platform can be folded down to the ladder or removed and locked in place so that only the upper end of the ladder and one side support reaches the window opening. support for work platform.

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The new lateral auxiliary supports for work platforms according to the invention on ladders are particularly suitable for use in fire protection where ladders from window openings or roofs need to evacuate untrained and insecure persons.

In the case of roofing work on roofs, the solution according to the invention allows safe access from the roof to the ladder and vice versa.

Claims (19)

PATENT CLAIMS 1. Auxiliary side supports for work platform for positioning at the upper end of the ladder to provide ascents and descents, with a floor (2) articulated to the ladder and fixed sideways in use, and with supports (6, 7) against the wall and castors (4, 5) on the wall, wherein large wheels are provided for crossing obstacles, characterized in that the deck (2) in the assembled state on the ladder relative to the ladders arranged on the ladder is displaceable in its longitudinal direction and lockable in any position that, irrespective of the instantaneous application of the ladder inclined to the horizontal edge of the roof, the floor (2) is adjustable in a position that extends beyond the roof edge and is substantially parallel to the roof. Work platform side auxiliary supports according to claim 1, characterized in that roller traveling wheels, guide wheels or rolling balls or large wheels are attached to the front sides of the work platform side auxiliary supports. Auxiliary side supports for a work platform according to claim 1, characterized in that extendable and plug-in beams (6, 7) are provided on the front sides of the lateral auxiliary supports for the work platform, which are provided with adjustable spacers and rollers (5) or rollers (4) in the form of rollers . Lateral auxiliary support for the working platform according to claim 1, characterized in that sliding and transversely adjustable beams (7) are fixed in the longitudinal and lateral direction on the underside or outer side, which can be bent and provided at their lower ends. traveling wheels. Auxiliary side support for a working platform according to claim 1, characterized in that one side is supported on adjustable lengths (3), and the opposite side is sliding and lockable or firmly resting on the supporting brackets (1). Auxiliary support for the working platform according to claim 1, characterized in that the auxiliary support for the working platform rests on the support brackets (1) and is supported only on the underside. Work platform side auxiliary support according to either of Claims 1 and 5 or 6, characterized in that the work platform side auxiliary support can be attached to the longitudinal beams and / or ladder rungs by clamping devices or plug-in or - suspension devices. · ....... ...... · Work platform side auxiliary support according to one of claims 1 and 5 -, 6 or 7, characterized in that the work platform side auxiliary supports can be attached by suspension to supporting beams and / or in conjunction with opposite side auxiliary supports. support for work platform. • · - 13 Auxiliary support for a work platform according to any one of claims 1 to 8, characterized in that the railing is retractable up to approximately half its height and is then foldable onto the floor (2). Auxiliary support for the working platform according to claim 9, characterized in that the railing can be telescopically extended and retracted in a horizontal or vertical direction. Auxiliary side supports for a work platform according to claim 9 or 10, characterized in that the railing is provided at the ends with individual plug-in and extendable ..... with horizontal struts which can also be connected to each other. Lateral according to one of the terminating auxiliary supports of claims 1 to 11, characterized in that it is attached to the outer edge for the working platform according to the characteristic edge of the floor (2) as a peripheral rail or rail. Auxiliary side supports for a work platform according to one of Claims 9 to 12, characterized in that adjustable rails (5) or traveling balls, roller-shaped or guide wheels or large wheels are fixed in all directions at the ends of the railing. wheels to facilitate movement. Auxiliary support for a work platform according to one of Claims 1 to 13, characterized in that the floor (2) has a shape such that one end has a smaller longitudinal dimension than the opposite end, so that the long side extends obliquely. 15. Side auxiliary support for work platform according to any of of claims 1 to 14 v y z learning that lateral auxiliary opera for the work platform is mounted only for one hand ladder and the other side The ladder is secured by a ladder support against a wall. 16. Lateral auxiliary support for work platform according to One of the claims 1 to 15 characterized s e in that the floor (2) is designed as telescopic, rolled or foldable. Auxiliary side supports for a working platform according to any one of claims 1 to 16, characterized in that the floor (2) has a solid or sieve surface, rests on a support frame, is mounted self-supporting on the ladder without frame or is pluggable. Work platform side auxiliary support according to one of Claims 1 to 17, characterized in that the work platform side auxiliary support is retractable and lockable thereon by means of • guide and / or support rollers, chain mechanisms, anti-lock fuses. "Slipping and rope slings, that are with respect angle delivery arranged on the bottom of the ladder. 19. Lateral auxiliary supports for working platform according to any of claims 1 to 18, v y from us emerging in that a hinged or sliding hole cover or manhole is provided between the two mounted auxiliary supports for the working platform. which is designed as a bearing surface The lateral auxiliary support for the working platform according to any one of claims 1 to 19, characterized in that the support brackets (1), the floorings (2), the swinging struts (3) and the railing are mountable individually as unrelated elements. The lateral auxiliary support for the working platform according to any one of claims 1 to 20, characterized in that both or only one lateral auxiliary support for the working platform is foldable or tiltable. Auxiliary side support for a work platform according to one of Claims 1 or 5 to 9, characterized in that the adjustable length swiveling struts (3) are articulated to the rungs of the ladder, the supporting bracket (1) are devices provided with supporting struts and are clamping attachable to ladder rungs. 23. Side auxiliary supports for working platform according to any from claims 1 to 21, ..... emerging Flooring (2) _{of z z z} t i lit f cook me oaernniKU, ovari, trapezoid or paralelogram. Work platform side auxiliary support according to one of Claims 1 to 21, characterized in that articulated, displaceable and lockable, extendable in vertical direction are arranged on the lower or outer side of the work platform side auxiliary support. and plug-in supports, - 16 which are attached to the ladder by means of folding, telescopically extending connection braces. 25. Lateral any of by: auxiliary supports Claims 9 to 13 : railing is pluggable for v y a / nel working from us bo folding. rig .mu.Ci according to s e 26. Lateral auxiliary supports for working rig according to any of Claims 5 to 25 v y from us .mu.Ci s e that Support brackets (1) j sou in the area seating areas fitted with wheels. 27. Lateral auxiliary support for working platform according to any claims 5 to 26 -you from us j í c í ------ se by the floor (2) is on support bracket (1) pivotably or articulated, and the pendulum strut (3) is fixed below or above the floor (2) and / or the support bracket (1) with adjustable length and position in the lateral direction, and is attached detachably or articulated to the longitudinal beams or rungs of the ladder.