DE29520400U1 - Device for moving a fall arrester fall arrester from a first climb path to a second climb path - Google Patents

Description

Abitz & Partner .·.·.: .·.·..:···.

European Patent Attorneys _Dr . Dipi.-ciicm.

Patent Attorneys _M- Gritschneder

Dipl.-Phys.

A. Frhr. von Wittgenstein

Dr. Dipl.-Chem.

J. Morf

Abitz & Partner, PO Box 86 01 09, D - 81628 Munich ^Dr - Dipl.-Chem.

Postal Address / Postal Address PO Box 86 01 09 D - 81628 Munich

22 December 1995 2 9 921/Duo swivel device

Soll GmbH

Seligenweg 10

D-95028-Hof/Saale

Federal Republic of Germany

Device for moving a fall arrester from a first climbing path to a second climbing path

The invention relates to a device for moving the arresting device of a fall protection system, in which the arresting device runs in a guide rail, from a first climbing path to a second climbing path running at an angle to the first climbing path.

Fall protection systems are known from EP-A-O 168 021, DE-A-27 36 037 and DE-A-19 61 757. At the end of a climbing path, e.g. a ladder or a climbing iron, where the user leaves the climbing path in order to access a platform, a roof overhang, an attic or similar, he or she must previously detach himself or herself from the safety device so that he or she is no longer protected against falling. DE-U-88 09 386 discloses an exit device in which the upper end of the guide rail can be pivoted about an axis parallel to the guide rail so that the person can hang onto the safety device from a safe standing position.

Munich - Bogenhausen Telephone: **I &Idigr; .* .' i TeSeftax (h Si SI -!automat.):' Telegram:

Poschingerstrasse 6 +49-89-99*W04*-i ** * +49-55-98*40 37 . Chemindus Munich

+49-89-98 32 22

The invention is based on the object of creating a device for moving a fall arrest device from a first to a second climbing path, whereby the safety function is not interrupted.

According to the invention, this object is achieved in that a pivoting device for pivoting an intermediate piece of the rail about two axes is provided at the end of the first climbing path, so that one end of the intermediate piece is aligned with the first end of the guide rail of the first climbing path in a first position and the second end of the intermediate piece is aligned with the beginning of the guide rail of the second climbing path in a second position.

In general, the first ascending path runs vertically, while the second ascending path runs horizontally or ascending relative to the horizontal. Preferably, the pivoting device is therefore designed such that the first pivot axis runs parallel to the first ascending path, while the second pivot axis runs at right angles thereto.

Preferably, the first pivot axis runs a short distance behind the fall arrest guide rail of the first climbing path.

Preferably, the pivoting device is designed in such a way that at least one sleeve aligned parallel to the guide rail is fastened to the rear of the fall protection guide rail of the first climbing path, in which a shaft is guided, at the end of which protrudes beyond the first guide rail a vertically directed disk is fastened, on which the intermediate piece is fastened so as to be rotatable about an axis running at right angles to the shaft.

When moving from the first, vertical climbing path to the second climbing path, the user moves his moving safety gear into the initially vertical intermediate section of the swivel

device and swivels it around the second, horizontal axis, while simultaneously swiveling the disc around the first, vertical axis. Preferably, the swivel device can be locked in the end positions of both swivel ranges. 5

After both swivel movements have been carried out, the intermediate piece is horizontal and upright, i.e. the opening of the C-profile of the guide rail points to the side, as is appropriate for horizontally running guide rails. The user can now move the moving safety device from the intermediate piece into the horizontally running guide rail of the second climbing path.

In order to prevent the safety catch from accidentally moving out of the intermediate piece, a first and a second locking pawl are located a short distance from the ends of the intermediate piece, which hold the safety catch within the intermediate piece. The first locking pawl, which is located at the first end of the intermediate piece, can only be released in the first end position of the pivoting movement around the second axis, whereby an area of the locking pawl located outside the intermediate piece enters a slot on the edge of the disc. The second locking pawl, which is located at the second end of the intermediate piece, can only be released in the second end position of the pivoting movement around the second axis, whereby here too the part of the locking pawl located outside the intermediate piece enters a second slot in the disc.

A plate is also attached to the shaft around which the first pivoting movement takes place, which covers the upper end of the guide rail of the first climbing path as soon as the pivoting device is rotated about the first axis out of the first end position.

When moving from the second climbing path to the first climbing path, the sequence of movements takes place in reverse order.

The safety device is secured against unintentional extension in any position of the intermediate piece. The user is continuously secured by the device according to the invention when moving from the first climbing path to the second climbing path and does not need to detach himself from the safety device.

An embodiment of the invention is explained in more detail below using the drawing. They show:

Fig. 1 to 3 from left and right front and from behind the

Swivel device in the first position;

Fig. 4 from the front the swivel device in a

Intermediate position and

Fig. 5 and 6 from the front and from the rear respectively the swivel device in the second position.

At the upper end of the guide rail 10 of a first climbing path (not shown), a first sleeve 11 and a second sleeve 12 are attached at a distance on the back, with the two sleeves 11, 12 being mounted on a plate 13, which in turn is screwed onto the back of the guide rail 10. The two sleeves 11, 12 are axially aligned with one another and their axis runs parallel to the longitudinal axis of the guide rail 10. A shaft 20 rotates in the two sleeves 11, 12, which is secured at the top by another, fixed sleeve.

21 and secured at the bottom by a locking pin 22 in the two sleeves 11, 12. Together with a cutout 14 extending around part of the circumference, e.g. 90°, at the lower end of the second sleeve 12, the locking pin limits

22 the angle of rotation of the shaft 20. The fixed sleeve 21 protrudes beyond the end of the guide rail 10 and a circular disk 23 is vertically attached to this sleeve 21.

On the side of the disc 23 .. opposite the shaft 20, an intermediate piece 24. of the same profile as the guide rail 10 is fixed in the center of the disc 23 by means of a

The length of the intermediate piece 24 is slightly larger than the diameter of the disk. The two sleeves 11, 12 and the shaft 20 with the disk 23 and the intermediate piece 24 rotatably mounted on it thus form a pivoting device for pivoting the intermediate piece about two axes 18, 19, with the first axis running through the shaft 20 and the second axis running at right angles to it through the center of the disk 23, i.e. through the threaded bolt 25.

In the first position shown in Fig. 1 to 3, the intermediate piece 24 is aligned with the guide rail 10 and the first end of the intermediate piece 24 is a short distance from the upper end of the guide rail 10, so that a safety device of the type known from DE-A-19 61 757 can be moved by the user from the guide rail 10 into the intermediate piece 24. By pivoting about the first and second axes 18 and 19, the intermediate piece 24 can be brought into a second position in which the second end of the intermediate piece 24 is a short distance from the start of a guide rail 3 0 of a second climbing path and in alignment with it. The guide rail 3 0 has the same profile as the guide rail 10 and the intermediate piece 24 and the opening of its C-profile faces to the side. The swivel movements about the two axes 18 and 19 can be carried out simultaneously or in any order.

Stops 26 for the first position of the intermediate piece 24 and stops 27 for the second position of the intermediate piece 24 are provided at diametrically opposite points on the disk 23. The shaft 20 can be locked in both end positions of its rotation range within the sleeves 11, 12 and the intermediate piece 24 can also be locked in both end positions of its swivel range.

Near the two ends of the intermediate piece 24, a first and second pawl 32, 34 are provided, the first

The first pawl 32 can only be released in the first position of the intermediate piece 24 and the second pawl 34 can only be released in the second position of the intermediate piece 24, whereby only the rotation about the second axis 19 is considered. The pawls 32, 34 can each be pivoted about a pivot point located outside the intermediate piece 34. The end of the pawls 32, 34 located outside the intermediate piece 24 rests against the disk 23 at the intermediate position shown in Fig. 4, so that in this intermediate position a catching device

Ø is held between the two pawls 32, 34. As shown in Fig. 2, the first pawl 32 can be released in the first position of the intermediate piece 24', since here the rear end of the pawl 32 can enter a first slot 36 of the disk 23. In the second position of the intermediate piece 24 shown in Figs. 5 and 6, the end of the second pawl 36 can enter a second slot 38 on the circumference of the disk 23, so that only in this position can the second pawl 34 be released and a safety device can move from the intermediate piece 24 into the guide rail 30 of the second climbing path.

A sheet metal 40 is welded at right angles to the fixed sleeve 21, which is cut in such a way that it only exposes the upper end of the guide rail in the first end position of the disk 23 shown in Fig. 1 to 3. In all other rotational positions of the disk 23 about the first axis 18, the sheet metal 40 covers the upper end of the guide rail 10 completely or partially, so that an unintentional movement of the safety catch device out of the upper end of the guide rail 10 is prevented.

In the embodiment shown, the guide rail 10 of the first climbing path is vertical and the guide rail 30 of the second climbing path is horizontal. The pivoting range of the intermediate piece 24 around the second axis 19 is therefore 90°. The guide rail 30 of the second climbing path can, however, also run at an angle to the horizontal, in which case the pivoting range of the intermediate piece 24

by moving the stops 26 accordingly. Likewise, the guide rail 10 of the first climbing path does not need to run exactly vertically.

Claims (4)

PROTECTION CLAIMS 1. Device for moving a fall protection device from a guide rail (10) of a first climbing path into a guide rail (30) of a second climbing path, characterized by a pivoting device for pivoting an intermediate piece (24) of the guide rail about two axes (18, 19) so that the first end of the intermediate piece (24) is aligned with the end of the guide rail 10 of the first climbing path in a first position and the second end of the intermediate piece (24) is aligned with the start of the guide rail (30) of the second climbing path in a second position. 2. Device according to claim 1, characterized in that the first axis (18) runs at a short distance behind and parallel to the guide rail (10) of the first climbing path and that the second axis (19) runs at right angles to the first axis (18). 3. Device according to claim 2, characterized in that the pivoting device is formed by at least one sleeve (11, 12) on the back of the guide rail (10) aligned parallel to it, a shaft (20) mounted in the at least one sleeve (11, 12) so as to be rotatable and fixed against displacement, a disk (23) attached laterally to the upper end of the shaft (20) and a pivot bearing (25) for the intermediate piece (24) in the center of the disk (23). 4. Device according to one of claims 1 to 3, characterized in that the intermediate piece can be blocked by a first and a second locking pawl (32, 34) at the first and second ends of the intermediate piece (24), the locking pawls (32, 34) only being operable in the first and second positions. ■■·· > second position of the rotational position of the intermediate piece (24) about the second axis (19).