DE9407608U1 - Concrete brick tongs - Google Patents

Description

Company Theodor Klaas GmbH & Co. KG, Raiffeisenstr. 19, 59387 Ascheberg

"Concrete pliers"

The innovation relates to a brick tongs according to the preamble of claim 1.

Such brick tongs are widely known from practice.

They are used to hold a row of concrete roof tiles, which are delivered on a pallet in several layers, for example, with each layer containing several rows of roof tiles. The tile clamp is used to hold one row of these roof tiles

to grasp, whereby this row must first be spaced apart by hand from the adjacent rows, in order to be grasped by the tile clamp. The roof tiles are then lifted to the

Roof lifted. The pull that the crane exerts on the crane eye of the tile clamp closes the two clamping strips and securely holds the roof tiles between them.

The problem with the well-known brick tongs is the

Align the tile clamp over the row of roof tiles. In practice, the correct positioning of the tile clamp requires more frequent corrections, with the tile clamp swinging and rotating on its suspension, namely on its crane eye opposite the crane hook.

The innovation is based on the task of improving a generic type of brick tongs so that they are easier to handle.
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This problem underlying the innovation is solved by the embodiment according to the characterizing part of claim 1.

In other words, the innovation proposes that the

known brick tongs made of light metal. The currently known brick tongs have been on the market for one to two decades and are all made of steel to ensure good strength, dimensional stability and durability.

Surprisingly, the fact that the brick tongs are made of light metal results in a significantly improved handling of the brick tongs without adversely changing the previously desired quality characteristics.

The ease of handling of the lighter brick tongs is due on the one hand to the fact that the lower weight allows the tool to be extended further when working with a roofer's crane, thus making it possible to reach places that were previously difficult or impossible to reach.

The weight reduction is, for example, more than half that of a pair of brick tongs made of steel, which weighs around 80 to 90 kg, since a similar pair of brick tongs made of light metal weighs around 40 kg.

A further improvement in handling is that the positioning of the tile clamp over the row of roof tiles can be carried out much more quickly. Due to the lower mass inertia of the tile clamp

it does not swing as intensively or as long as is the case with heavier brick tongs, so that considerable time can be saved from approaching the stack of bricks to grasping the row of bricks.

An example of the innovation is explained in more detail below using the drawing.

In this case, 1 generally refers to a tile clamp that is suitable for holding a row of concrete roof tiles. The

For this purpose, the brick tongs 1 have two clamping strips 2, each of which is equipped with a rubber lip 3 for a better grip.

The brick clamp 1 has a holding arm 4 which is attached to its

upper end carries a crane eye 5, whereby the entire tile clamp 1 can be suspended and lifted onto a roofer's crane, a construction site crane or the like with the aid of this crane eye 5.

Furthermore, the holding arm 4 serves to act on the clamping strips 2 with the aid of a known device 6 for force deflection, which comprises several levers, whereby an upward pull acting on the crane eye 5 causes a pivoting movement of the clamping strips 2 about their hinges 7.

so that the clamping strips 2 are pivoted towards each other and securely grip the row of roof tiles arranged between the clamping strips 2. The weight of the roof tiles increases the tensile force acting on the crane eye 5 and in this way the clamping force of the clamping strips 2 is increased.

also increased.

In this way, a secure fixing of the roof tiles is ensured, but for safety reasons an additional safety plate 8 is provided, which

shaped. The safety plate 8 is held in its release position shown in the drawing by means of a projection 9 which rests on a locking pin 10. The safety plate 8 can be rotated from this release position about a pivot axis 11 into a safety

position in which it is below the between

the clamping strips 2. The trough-shaped design of the safety plate 8 ensures that any falling bricks or pieces of brick are held securely in the safety plate 8 and cannot fall down and possibly become dangerous.

Due to the use of light metal, the brick pliers 1 shown are more than half as light as a similar pair of pliers made of steel, so that the advantages described in the handling of the new bricks are

pliers. Aluminum can be used as a light metal because it is inexpensive. In particular, a high-strength aluminum alloy can be used because it also meets the requirements in terms of stability and wear requirements.

Claims (5)

Protection claims: 1. Tile clamp for concrete roof tiles, with two clamps bars for gripping a row of aligned concrete roof tiles and with a crane eye which is effectively connected to a clamping bar via a force deflection device for exerting a clamping pressure on the roof arranged between the clamping bars pans depending on a tensile force on the crane eye, characterized in that the tile tongs (1) are made of light metal. 2. Brick tongs according to claim 1, characterized by the Use of an aluminum alloy as a light metal. 3. Brick tongs according to claim 2, characterized by the Use of a high-strength aluminum alloy. 35 4. Brick clamp according to one of the preceding claims, characterized by a safety plate (8) which is pivotally mounted between a release position in which the area below the clamping strips (2) is freely accessible, and a safety position in which the Safety plate (8) below the terminal blocks (2)
is arranged. 5. Brick tongs according to claim 4, characterized in that the safety plate (8) is bent in a trough shape.