Classifications

• • E—FIXED CONSTRUCTIONS
  • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
  • E06C—LADDERS
  • E06C9/00—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes
  • E06C9/02—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes rigidly mounted
• • E—FIXED CONSTRUCTIONS
  • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
  • E06C—LADDERS
  • E06C1/00—Ladders in general
  • E06C1/02—Ladders in general with rigid longitudinal member or members
  • E06C1/38—Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders
  • E06C1/381—Ladders with rungs or treads attached only to one rigid longitudinal member
• • E—FIXED CONSTRUCTIONS
  • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
  • E06C—LADDERS
  • E06C7/00—Component parts, supporting parts, or accessories
  • E06C7/18—Devices for preventing persons from falling
• • E—FIXED CONSTRUCTIONS
  • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
  • E06C—LADDERS
  • E06C7/00—Component parts, supporting parts, or accessories
  • E06C7/18—Devices for preventing persons from falling
  • E06C7/181—Additional gripping devices, e.g. handrails
  • E06C7/182—Additional gripping devices, e.g. handrails situated at the top of the ladder
• • E—FIXED CONSTRUCTIONS
  • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
  • E06C—LADDERS
  • E06C7/00—Component parts, supporting parts, or accessories
  • E06C7/18—Devices for preventing persons from falling
  • E06C7/186—Rail or rope for guiding a safety attachment, e.g. a fall arrest system
  • E06C7/187—Guiding rail

Definitions

• the invention relates to a device for securely leaving and entering a climbing path when transitioning to a stage, the roof of a building, a pedestal or when leaving and entering a shaft.
• the device has a guide rail for guiding a catching device, on which a person walking the ascent path can be secured, and an extension piece of the guide rail at the upper end of the guide rail.
• a ladder with such a protrusion is known from DE-U-88 09 386.
• the protrusion or extension is pivotable about a vertical axis at the top of the ladder.
• This device is not suitable for skylights or manhole covers, since here the manhole cover or the skylight would collide with the overhang. In the case of manhole covers and skylights, the excess was previously kept separate and, when used, was attached to the upper end of the ladder.
• the invention has for its object to provide a device for secure leaving a climbing path that is easy to use and does not require the plugging of a conductor extension.
• this object is achieved in that the extension of the guide rail can be shifted between a first position and a second position, the Extension piece is arranged in the first position so that it does not protrude significantly above the guide rail, and in alignment with the guide rail continues in the second position upwards.
• extension piece of the guide rail can be moved between two positions, it is no longer necessary to store or carry the extension piece separately.
• the extension piece of the guide rail can be hinged to the upper end of the guide rail by means of a hinge.
• the arrangement is particularly space-saving if the extension piece is mounted vertically displaceably behind the guide rail.
• the extension piece is preferably designed to be pivotable about a vertical axis. For use, the extension piece is first pulled or pushed up to a stop and then rotated by 180 ° around the vertical axis and placed on the end of the fixed guide rail. Centering tabs on the upper end of the fixed guide rail prevent misalignment between the extension piece and the guide rail and ensure that the connection point with a safety gear is passed safely.
• the extension piece In order to bring the extension piece into the first position or rest position, the extension piece is raised, pivoted through 180 ° and then lowered or lowered. In the first position, the extension piece is extremely space-saving behind the guide rail, i.e. generally stowed between the guide rail and the masonry to which the guide rail is attached.
• the extension piece is preferably fastened to a tube which is vertically displaceable and rotatable about its longitudinal axis by two pairs of guide rollers.
• the two pairs of guide rollers are preferably mounted on the upper end of the fixed guide rail.
• the device according to the invention is particularly suitable for use in single-rail or central rail ladders with fall protection, as is known from DE-A-19 61 757.
• the tube to which the extension piece is attached can be mounted parallel and at a short distance behind the central stringer by means of the guide rollers in such a central stringer ladder.
• Figure 1 shows the guide rail with recessed extension piece.
• Figure 2 shows the guide rail with the extension piece pulled out.
• a guide rail 10 is attached to a structure B, e.g. the inner wall of a shaft, dowelled.
• 10 steps 14 are attached to the back of the guide rail at regular intervals.
• the guide rail 10 forms, together with the steps 14, a single rail or central rail ladder.
• the guide rail 10 serves to guide a safety device (not shown in the drawing) which, together with the guide rail 10, is part of a fall protection device as described in DE-A-19 61 757, DE-A-27 36 037 and EP-A-0 168 021 is known.
• a pipe 16 is mounted directly behind the guide rail 10 by two pairs of guide rollers 18, so that the tube 16 is displaceable parallel to the guide rail 10, ie it can be pulled out upwards and retracted downwards.
• each pair of guide rollers 18 is mounted on a carrier plate 20 which is fastened on the rear side of the guide rail 10.
• the guide rollers 18 sit on stub axles 22 which are perpendicular to the guide rail 10 and the steps 14. The distance between the guide rollers 18 of each pair is chosen so that the tube 16 is held between them with as little play as possible.
• the surface of the guide rollers 18 is adapted to the circular circumference of the tube 16. In the range of movement of the tube 16, the brackets 12 are placed laterally in order to create space for the tube 16.
• An extension piece 24 is fastened along the tube 16 by means of spacers 26.
• the extension piece 24 is a section of the same profile rails as the guide rail 10.
• the length of the spacers 26 is chosen so that the extension piece 24 is at the same distance from the tube 16, in which the tube 16 is mounted behind the guide rail. If the tube is therefore rotated by 180 ° about its longitudinal axis, the extension piece 24 is aligned with the guide rail 10.
• At the upper end of the guide rail 10 are centering tabs 28, into which the extension piece 24 can be inserted, so that a twisting of the Extension piece 24 is prevented relative to the guide rail 10 and a catching device can safely pass through the connection point between the guide rail 10 and the extension piece 24.
• the extension piece 24 does not extend over the entire length of the tube 16. Rather, a length is free at the lower end of the tube 16, which is slightly larger than the distance between the two pairs of guide rollers 18, so that the tube 16 always from both pairs of Guide rollers 18 is held, when the extension piece 24 is connected to the upper end of the guide rail 10.
• the extension piece 24 can protrude slightly above the upper end of the tube 16 and a handle 30 is also provided at this point, which for the sake of simplicity can have the shape of a step 14. Otherwise, no further steps or handles are provided on the extension piece 24, since these would interfere with the sinking of the tube 16. In the lowered position of the tube 16, the handle 30 sits on the uppermost guide rollers 18. At the lower end of the tube 16 is a stop, not shown, which prevents the tube 16 from being pulled out completely.
• the extension piece 24 can assume two stable positions. In the first position, it is countersunk, the upper end of the connecting piece 24 and also of the tube 16 not projecting over the upper end of the guide rail 10 or only protruding minimally. On the handle 30, the extension piece 24 can be pulled up from this first position. The tube 16 is guided through the guide rollers 18.
• Spacers 26 are dimensioned so that they can run between them on the free side of the guide rollers 18.
• an extension lock is provided at the upper end of the guide rail 10 and the extension piece 24, which prevents the safety device guided in the guide rail 10 and the extension piece 24 from being accidentally pulled out of its upper ends. If the fall protection system described is used, for example, for a sewer shaft, the extension piece 24 is pulled out after the shaft has been opened, pivoted through 180 ° and plugged onto the guide rail 10. The safety device is then inserted into the extension piece 24 at the top and the user can then safely descend into the shaft.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Ladders (AREA)
• Buildings Adapted To Withstand Abnormal External Influences (AREA)
• Tents Or Canopies (AREA)
• Vehicle Step Arrangements And Article Storage (AREA)
• Suspension Of Electric Lines Or Cables (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=8043333

Family Applications (1)

Country Status (6)

Families Citing this family (5)

Family Cites Families (12)

• 1997
  • 1997-07-18 DE DE29712753U patent/DE29712753U1/de not_active Expired - Lifetime
• 1998
  • 1998-07-17 WO PCT/EP1998/004460 patent/WO1999004127A1/fr active IP Right Grant
  • 1998-07-17 PL PL98337991A patent/PL337991A1/xx not_active IP Right Cessation
  • 1998-07-17 DE DE59808184T patent/DE59808184D1/de not_active Expired - Fee Related
  • 1998-07-17 EP EP98941354A patent/EP0996805B1/fr not_active Expired - Lifetime
  • 1998-07-17 AT AT98941354T patent/ATE239166T1/de not_active IP Right Cessation
  • 1998-07-17 US US09/462,185 patent/US6260662B1/en not_active Expired - Lifetime

Non-Patent Citations (1)

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