DE102020007719B4 - Arrangement for climbing - Google Patents

Abstract

The invention relates to an arrangement for climbing on flexible or rigid support elements. A climbing device equipped with connecting and securing elements for the climbing person and with grippers (15; 16) for the hands and feet of the climbing person is connected to a cable winch (4) for its vertical movement. The cable winch (4) is detachably arranged on the grippers (15) provided for the hands by means of a lifting frame (2).
The invention has the significant advantage that the work of the worker at height is made considerably easier while maintaining safety. The worker at height can reach the position intended for his work without exerting any physical effort and can also leave this position again without danger. The arrangement according to the invention enables higher work outputs. Furthermore, it is suitable for use in the event of an accident without the need for the fire service to rescue at heights, as was previously required.

Description

The invention relates to an arrangement for climbing on flexible or rigid support elements using a climbing device as known from EP 1 148 913 B1 emerges.

The climbing device according to EP 1 148 913 B1 is characterized by the fact that grippers intended for the hands and feet of the person climbing are arranged in such a way that the load change that occurs when climbing acts on the grippers and a relief opens the grippers and activates a timer. After the time interval of the timer has elapsed, the grippers close automatically in a position freely selectable by the person climbing. This device has proven itself many times and for different applications, for example for cleaning and maintenance work on facades. With minor modifications, this device is not only suitable for cleaning work or repairs on vertical facades, but also for overhead work on horizontally arranged glass surfaces, such as glazed courtyards. It also offers a high level of functional reliability.

Although this well-known climbing device is relatively easy to handle compared to state-of-the-art facade access devices, it does require certain athletic requirements from the person climbing.

The US 4 130 176 A discloses a safety belt for securing people who work on windows at great heights. The safety belt includes a harness that can be connected to the window via a cable winch and a rope so that the person can protect themselves against a fall.

The US 2008 / 0 128 668 A1 discloses a climbing device with an electric pulling device. The pulling device is designed to move a climber in a vertical and horizontal direction. The climber hangs via a vertical rope below the pulling device. The pulling device is connected to fastening points via two diagonally running ropes.

From the WO 2013/ 143 513 A1 Another device for climbing is known. In order for a climber to be able to move horizontally along a facade, the device has two carrying elements and two additional carrying straps. The carrying elements and the carrying straps can each be detached and connected to fastening points on a facade in such a way that a climber can move horizontally along the facade

The object of the invention is therefore to provide an improved technical solution for climbing which, while retaining the advantages of the original climbing device, enables the climber to climb up and down with only minimal effort.

According to the invention, the object is achieved by an arrangement for climbing on flexible or rigid support elements, which comprises a climbing device with connecting elements for receiving the climbing person, with safety elements and with grippers provided for the hands and feet of the climbing person, as well as an electrically operated cable winch, wherein the cable winch is connected to the climbing device for its vertical movement.

The invention has the major advantage that the work of the worker at height is made considerably easier while maintaining safety. The worker at height can reach the position intended for his work without any physical effort of his own and can also leave this position again safely. The arrangement according to the invention enables higher work outputs. Furthermore, in the event of an accident, the injured person can be rescued by a second climber without the need for the fire service to rescue him at height, as was previously required. The arrangement also enables long-term work for low-skilled workers with the appropriate ability to work at heights.

According to the invention, the cable winch is arranged on a lifting frame and is connected by means of a cable to a cable holder with a self-locking hook.

According to the invention, the lifting frame is connected to the grippers provided for the hands of the climbing person.

According to a particularly preferred embodiment of the invention, the cable winch has a remote control.

The lifting frame is conveniently attached to the grippers in a detachable manner. Typically, the ascent speed of the cable winch can be continuously controlled up to 25 m/min.

According to a further preferred embodiment of the invention, the cable winch is supplied with energy by means of an accumulator or via a 220 V towing cable.

Preferably, the upper end of the support elements is detachably arranged on receptacles with self-locking hooks and are at the lower end of the Supporting elements Weights are provided to tighten the supporting elements.

In the following, the invention will be explained in more detail using an exemplary embodiment. A climbing device according to 1 .

This climbing device has the same technical features as those required for a climber from the EP 1 148 913 B1 and how they are realized in the well-known climber FLEX130 ^® .

In this respect, the grippers 15 and 16 also have the following movement characteristics: If a force acting on the grippers 15 and 16 is directed downwards and, for example, the gripper is loaded by the weight of the person climbing, then the support element 1 is clamped in the grippers 15 and 16. As soon as one of the grippers 15 or 16 is relieved of the downward force, it can be easily moved vertically again on the support element 1.

In this embodiment, stainless steel cables of type DIN 3060 - 7 x 19 - SZ are used as the support element 1. They are fixed at their upper end in cable holders with self-locking hooks 11, here cable holders from Brinkman or Helm. At their lower end, the support cables 1 are tightened by removable weights with a mass of 5 kg. It goes without saying that the support elements 1 can also be rigid.

The connecting elements and safety elements climbing seat 5, chest strap 6, carrying strap 7, lap belt 13 and foot support 8 are provided to accommodate the person working at height and to ensure their safety. Depending on whether the person climbing is left-handed or right-handed, the cleaning agent container 12 is located on the left or right side of the climbing seat 5.

According to the invention, the arrangement has the cable winch 4 arranged on the lifting frame 2, whereby the lifting frame 2 is detachably connected to the grippers 15. The remote-controlled electrically operated cable winch type ActSafe from Krah, which is approved for the transport of people, is used. The textile cable 3, which has a load capacity of 22 kN, connects the cable winch 4 to the holder 10 equipped with a self-locking hook, in this embodiment to the special drive type transport trailer 5971 9862 GL from Brinkmann. The cable winch 4 is supplied with power via a 220 V tow cable, which is not shown here. In this embodiment, the ascent speed of the climbing device can be regulated with the remote control over a distance of up to 150 m in 3 stages (5, 12 and 25 m/min).

However, the power supply of the cable winch 4 can also be secured by means of a battery, whereby it has proven to be advantageous to always have a second battery ready for use. In battery operation, the power of the cable winch 4 is sufficient for a total of 200 meters in altitude.

• Die kletternde Person befindet sich auf dem Klettersitz 5 und mit ihren Füßen auf dem Fußträger 8. Und sie ist - wie vorgeschrieben - mittels des Beckengurtes 13 und des Brustgurtes 6 gesichert und so einsatzbereit. Die Greifer 15 und 16 befinden sich in einem entlasteten Zustand. Für die Greifer 15 und 16 ist dadurch an den als Tragelement 1 gebrauchten Edelstahlseile ein unbelasteter Freilauf gegeben. Anschließend wird die Klettervorrichtung mit der Person mittels der fernbedienbaren Seilwinde in die Höhenposition gefahren, in der die vorgesehen Arbeiten, wie Reinigungsarbeiten oder Reparaturen, durchgeführt werden sollen. Sobald diese Position erreicht ist, belastet die Person die Greifer 15 und 16, so dass sich diese an den Tragelementen 1 festklemmen und der Person einen gesicherten Sitz in der gewählten Höhenposition geben. Danach wird das Hebegestell 2 von den oberen Greifern 15 gelöst. Die entlastete Seilwinde 4 und das Hebegestell 2 verbleiben an dem Textilseil 3.

The ascent of the climbing person is realized as follows:

• The person climbing is on the climbing seat 5 and has their feet on the footrest 8. And they are secured - as required - by means of the lap belt 13 and the chest belt 6 and are thus ready for use. The grippers 15 and 16 are in a relaxed state. This gives the grippers 15 and 16 an unloaded free run on the stainless steel cables used as the support element 1. The climbing device with the person is then moved by means of the remote-controlled cable winch to the height position at which the intended work, such as cleaning work or repairs, is to be carried out. As soon as this position is reached, the person loads the grippers 15 and 16 so that they clamp onto the support elements 1 and give the person a secure seat in the selected height position. The lifting frame 2 is then released from the upper grippers 15. The unloaded cable winch 4 and the lifting frame 2 remain on the textile cable 3.

If horizontal work at height is to be carried out, the weights attached to the lower ends of the stainless steel cables to tighten them are dismantled. After completing the work at the selected height, the person concerned can gradually move the climbing device back down at a speed of approx. 10 m/min by alternately unloading and loading the grippers 15 and 16. After completing the work at the respective height position, the cable winch 4 with the lifting frame 2 is moved down using the remote control on the textile cable 3. After re-attaching the lifting frame 2 to the upper grippers 15 and attaching the weights 9 to the lower ends of the stainless steel cables, the electrical ascent to the new height position now selected begins again. This cycle is repeated until all the desired work on the respective facade has been completed.

However, it is also possible not to release the lifting frame 2 from the grippers 15 so that the climbing device with the secured person can be lowered again by means of the cable winch 4, as may be the case in the event of an accident. may be required. In this respect, the arrangement according to the invention can be used flexibly.

The climbing arrangement according to the invention proves to be a combination of a manually and electrically operated height access arrangement particularly advantageous for work to be carried out vertically and, with known accessories, also horizontally on the facades of buildings as well as for industrial applications such as chemical plants, shipbuilding and offshore drilling rigs.

Reference symbol list

1

Supporting element

2

Lifting frame

3

Textile rope

4

Cable winch

5

Climber seat

6

Chest strap

7

Carrying strap

8

Footrest

9

Weight

10

Rope holder with self-locking hook

11

Rope holder with self-locking hook

12

Detergent container

13

Lap belt

14

Spacers

15

Gripper

16

Gripper

Claims (7)

Arrangement for climbing on flexible or rigid support elements (1) comprising a climbing device with connecting elements for receiving a climbing person, with securing elements and with grippers (15; 16) provided for the hands and feet of the climbing person, characterized in that - the climbing device comprises an electrically operated cable winch (4), wherein the cable winch (4) is connected to the climbing device for its vertical movement, - wherein the cable winch (4) is arranged on a lifting frame (2) and is connected by means of a cable (3) to a cable holder with a self-locking hook (10) and - the lifting frame (2) is arranged on the two grippers (15) provided for the hands of the climbing person. Arrangement according to Claim 1 , characterized in that the cable winch (4) has a remote control. Arrangement according to Claim 1 or 2 , characterized in that the lifting frame (2) is detachably arranged on the grippers (15). Arrangement according to at least one of the Claims 1 until 3 , characterized in that the ascent speed of the cable winch (4) is continuously controllable up to 25 m/min. Arrangement according to at least one of the Claims 1 until 4 , characterized in that the cable winch (4) is supplied with energy by means of an accumulator or via a 220 V towing cable. Arrangement according to Claim 1 , characterized in that the upper end of the support elements (1) is detachably arranged on receptacles (11) with self-locking hooks. Arrangement according to Claim 1 , characterized in that weights (9) are provided at the lower end of the support elements (1) for tightening the support elements (1).

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