DE8111157U1 - TRANSPORT ANCHOR - Google Patents

Description

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description

The invention relates to a lifting anchor of the type mentioned in the preamble of claim 1.

Lifting anchors of this type are aids for lifting heavy loads. They are mainly used in precast reinforced concrete construction and are suitable for lifting loads in the range of several tons. The total maximum permissible load-bearing capacities essentially depend on the dimensioning of the anchor elements and their anchoring in a precast concrete part. In addition to facilitating the lifting of heavy loads the lifting anchors also can be used as a binder bonding trans- port I ₁ during assembly of prefabricated parts and as a construction = ■ for connecting components or to static anchoring. Transport anchors are an indispensable aid in precast construction. Transport anchor systems of various types are already used.

A transport anchor of the type mentioned is an expansion anchor or an anchor designed as a spherical head anchor is arranged in a precast concrete part that the ball head or the one provided with an eye, the splayed end of the The expansion anchor opposite end is accessible for a hook specially tailored to this anchor = preferably | se is the ball head or the eye of the expansion anchor in relation to i. sunk onto the outer surfaces of the precast reinforced concrete part Γ arranged in a preferably hemispherical recess |.

of the precast concrete part. This anchor is made in one piece from solid steel manufactured. With such a transport anchor system, it is absolutely necessary that for commissioning Support means specially tailored to the anchor shape can be used. Due to the one-piece and massive design

of the anchor, its load-bearing capacity is comparatively low.

Furthermore, for example, wire rope lifting loops are for
Precast concrete parts known, which are essentially made of steel wire ropes. During the manufacture of the precast concrete parts, steel wire ropes of suitable length are poured into the concrete so that a part of the steel wire rope designed as a rope loop protrudes at suitable points, for example laterally on two opposite longitudinal sides of the precast reinforced concrete part. The protruding loop parts are movable to a certain extent, so that precast concrete parts can be stacked, but bending the wire rope loops back and forth several times involves certain risks. For example, repeated bending back and forth can cause material fatigue in both the concrete and the wire rope, which leads to a reduction in the maximum permissible load-bearing capacity. As a result, operational safety is endangered or reduced in an incalculable manner. Another disadvantage of the protruding wire rope lift-off loops is
it that they hinder the structural connection of the precast concrete elements equipped with them. Since the wire rope lifting loops must always be arranged on at least two opposite sides of a precast concrete part, for example, slab laying in butt joint is only possible with respect to the two loop-free sides of the slabs.

In view of this prior art, the invention is based on the object of creating a lifting anchor of the type mentioned, which is arranged protected against damage, the assembly and the structural
Connection of the piece goods is not hindered and at the same time is highly resilient.

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To solve this problem, a transport anchor of the type mentioned is proposed which, according to the invention, the in the characterizing part of claim 1 has mentioned features.

The transport anchor of the invention thus has a part designed as a rope loop which, in relation to the outer surfaces a precast concrete part is arranged completely sunk in a preferably substantially hemispherical Precast concrete recess. The two ends of the rope loop are according to a preferred embodiment pressed by means of a steel sleeve and are arranged inside the precast concrete part. The one preferably made of metal During pressing, the sleeve is spread like an anchor at its end opposite the loop, whereby at a secure anchoring of the transport anchor is achieved during the production of precast concrete parts. To engage with the Transport anchors designed according to the invention are suitable, as long as they are the same Have resilience like the transport anchor designed according to the invention. According to a preferred embodiment the rope of the lifting anchor is designed as a steel wire rope. Any other rope material can also be used heavy-duty material into consideration. The permanent connection of the parallel rope loop ends can also be produced in a way other than by pressing a sleeve, for example by fusing ropes Plastic.

The material recess to ensure the recessed arrangement the transport anchor according to the invention can be arbitrary

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be designed. It only has to be ensured that the eyelet-shaped rope loop area is accessible to any suspension means and that the anchor area remaining within the piece goods can be securely anchored in it.

The transport anchor according to the invention has the advantage that it is sunk despite the loop-like training. The recessed arrangement creates a back and forth Bending of the lifting anchor prevented. This allows the type known from wire rope lifting loops Avoid the disadvantages of material fatigue or the resulting reduction in load capacity. Compared to the transport anchor systems embodied, for example, as spreading or head anchors, the inventive Transport anchor system essentially has two advantages. On the one hand, it is trained as a wire rope loop A significantly higher load capacity is achieved with the same material thickness than with the transport anchors, which are one-piece made of solid steel. On the other hand, there is nothing specially tailored to the anchor geometry for commissioning Support means required. As a result, the transport anchor of the invention can be used universally.

The invention is explained in more detail below using an exemplary embodiment in conjunction with the drawings. Show it:

Fig. 1 shows an embodiment of the anchored in a precast concrete part according to the invention Transport anchor system in side sectional view;

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Fig. 2 shows the embodiment of the invention Transport anchor system of FIG. 1 in a side sectional view perpendicular to FIG. 1.

The transport anchor 1 shown as an exemplary embodiment in FIG. 1 consists of a rope 4 and a sleeve 7 Rope 4 is a rope loop with an eyelet-shaped area 5 and an area with parallel rope ends 6.6 ' educated. The rope ends 6, 6 'running out in parallel cannot be released by pressing the sleeve 7 pushed over them connected with each other. When the sleeve 7 is pressed in during the manufacture of the transport anchor, this becomes the loop opposite end 10 of the sleeve 7 spread like an anchor, whereby a secure anchoring of the transport anchor 1 in the piece goods 2 is reached. The eyelet-shaped area 5 is completely sunk in relation to the piece goods outer surfaces 9 arranged. To ensure the recessed arrangement, the precast concrete part 2 has a substantially hemispherical shape Recess 3. This recess 3 is provided with the lifting anchor 1 according to the invention during the production Piece goods produced in a simple manner in that, together with the transport anchor 1, a complementary to the recess 3 formed molded part, which is detachably connected to the transport anchor 1, is poured and after completion the precast concrete part is removed.

FIG. 2 shows the embodiment shown in FIG. 1, but rotated by 90 °, with an eye hook 8 Suspension means.

Claims (1)

DIPL, CHEM. DR, KLAUS JAEGER DIPL.-ING, KLAUS D, GRAMS DR.-ING, HANS H, PONTANI BO35 GAUTING BERGSTR. 4BV> B031 STOCKOORF · KREUZWEG 3.1 8753 KLEINOSTHEIM. HIRSCHPFAD PHI-1 Gebr. Philipp & Co. GmbH Drahtseile & Hebezeuge KG Lilienthalstraße 7, 8750 Aschaffenburg Transport anchor claims 1. Transport anchor for the transport and assembly of piece goods, in particular precast concrete parts, with an area that is completely sunk outside of the piece goods, but with respect to the respective surrounding outer surface of the piece goods, for receiving support means and an area arranged inside the piece goods to ensure an undetachable area frictional connection with the piece goods,
characterized in that a rope (4) in the form of a loop, the loop ends (6,6 ') running in parallel, are inextricably connected to one another, with its loop-shaped loop part (5) the area sunk outside the piece goods (2) for receiving carrying TELEPHONE; (089) 85Ο2Ο3Ο; 8574Ο8Ο; (06O27) 8825 TELEX: 5 Q1 777 Isar d ¹ 'S' - ι 5 ι ι-ι ι ι ι ι ι ι 1 I. I I I means (8) and with its parallel loop ends (6,6 ') within the piece goods arranged area to ensure the permanent, non-positive connection with the piece goods (2) forms. , Transport anchor according to claim 1, characterized in, that the loop ends (6,6 ') running out in parallel through a sleeve which receives the loop ends (6,6') (7) are inextricably linked. Transport anchor according to claim 1 or 2, characterized in that that the sleeve (7) is spread like an anchor at the end opposite the rope loop. Transport anchor according to one of the preceding claims, characterized in that the rope (4) is a steel wire rope.