EP2110486B1 - Anchor point for a lift assembly - Google Patents

Description

TECHNICAL AREA

Elevator mounting anchor with a hanging section for hanging shackles, hooks, ropes or the like and at least one anchoring section for pouring into a concrete ceiling.

STATE OF THE ART

In elevator machine rooms or in the shaft head area of elevator shafts, load anchors, which can hold loads of several tons, must be installed in the ceiling of the shaft to attach mounting platforms for mounting or maintenance of the elevator. Load-tested elevator mounting anchors are known for this application. An example of such an elevator mounting anchor is a preassembled combination of a shaft anchor (anchoring section) and a cable eyelet (trailer section). The shaft anchor is concreted into the ceiling of the elevator shaft and shackles, hooks, ropes or the like are attached via the rope eyelet in the shaft head area. In order to achieve load capacities of up to 4 tons, such a shaft anchor must have a length of about 30 cm. According to such an elevator assembly anchor, the rope eyelet projects up to 25 cm into the shaft head area. Such a construction needs a ceiling thickness of at least 30 cm. Smaller versions are also known for lower ceiling thicknesses, for which there is not an unlimited amount of space for anchoring. Such smaller versions have only been tested and approved for lower loads.

Known cargo anchors are, for example, in DE 32 48 604 A1 , DE 36 33 633 A1 and DE 297 22 108 U1 described.

PRESENTATION OF THE INVENTION

The object of the invention is to provide a device of the type mentioned in the introduction, in which the trailer section does not take up the space usable for the elevator and which nevertheless has a load-bearing capacity for loads of several tons.

This object is achieved according to the invention by the subject matter of claim 9, relating to an elevator assembly anchor, and the subject matter of claim 1, relating to the use of an anchor as an elevator assembly anchor.

For this purpose, the attachment section of such a device is arranged in a recess body, which is also provided for pouring into the concrete ceiling adjacent to its lower formwork and which, after removal of the formwork, creates a cavity surrounding the attachment section adjacent to the underside of the ceiling in the concrete cover.

The invention therefore has the advantage that the elevator assembly anchor does not protrude into the shaft head area and thereby takes up the space that can otherwise be used for the elevator.

The recess body is preferably elongated and has a length of 12-25 cm, preferably 15-20 cm, a width of 5-10 cm, preferably 6-8 cm, and a height of 4-10 cm, preferably 5-7 cm , on. An elongated shape of the recess body makes it easier to attach shackles, hooks, ropes or the like. The recess body can consist of dimensionally stable foam or the like, which after assembly by e.g. Scrapped can be removed. The recess body can also be formed in a shell shape with a wall made of sheet metal or plastic. Furthermore, the recess body can be provided with means for nailing onto the formwork of the concrete ceiling.

According to an embodiment not according to the invention, the attachment section is formed by a rod which extends in two places through the wall of the recess body according to the invention into the surrounding concrete and thereby forms two anchoring sections. The rod can preferably be bent downward in the region of the attachment section in order to facilitate attachment of shackles, hooks, ropes or the like. To a higher breakout resistance of the The rod can at least reach elevator assembly anchors in the concrete in the area of an anchoring section. Such a preferred embodiment has the advantage that the attachment and anchoring section are formed from a rod. Such a device according to the invention is easy to manufacture and can be firmly connected to the recess body in order to facilitate assembly on the formwork.

According to the invention, the anchoring section comprises a metal plate lying above the recess body, which is connected to the attachment section through the wall of the recess body. The attachment section has the shape of an eyelet or loop and comes to rest in the recess described above. For load distribution, the metal plate can extend beyond the area of the recess on at least one side. For further load distribution, at least one rod is attached to the metal plate according to the invention. This stick extends, preferably on both sides, 25 - 50 cm beyond the metal plate.

According to an embodiment not according to the invention, the anchoring section comprises a shaft anchor, which is located in the concrete above the recess body and which is connected to the trailer section through the wall of the recess body. The attachment section can have the shape of an eyelet or loop and comes to rest in the recess described above.

In all embodiments, the attachment section can preferably be attached asymmetrically to the longitudinal axis of the recess in order to facilitate attachment of shackles, hooks, ropes or the like.

BRIEF EXPLANATION OF THE FIGURES

Fig. 1

eine nicht erfindungsgemäße Vorrichtung mit einem Stab als Anhänge- und Verankerungsabschnitt in einer Schnittdarstellung von der Seite gesehen;

Fig. 2

die Ausführungsform von Fig. 1 in einer Aufsicht;

Fig. 3

eine Ausführungsform einer erfindungsgemässen Vorrichtung in perspektivischer Darstellung mit einer Metallplatte als Verankerunsabschnitt;

Fig. 4

eine Schnittdarstellung der Vorrichtung von Fig. 3 von der Seite gesehen;

Fig. 5

eine Aufsicht der Vorrichtung von Fig. 3;

Fig. 6

eine nicht erfindungsgemäße Vorrichtung in einer Schnittdarstellung von der Seite gesehen.

The invention will be explained in more detail below on the basis of exemplary embodiments in connection with the drawing. Show it:

Fig. 1

seen a device according to the invention with a rod as a hitch and anchoring section in a sectional view from the side;

Fig. 2

the embodiment of Fig. 1 in a supervision;

Fig. 3

an embodiment of an inventive device in perspective with a metal plate as anchoring section;

Fig. 4

a sectional view of the device of Fig. 3 seen from the side;

Fig. 5

a top view of the device of Fig. 3 ;

Fig. 6

seen a device according to the invention in a sectional view from the side.

WAYS OF CARRYING OUT THE INVENTION

The device in Fig. 1 corresponds to an embodiment not according to the invention in a sectional view seen from the side and comprises a recess 1 on the underside of the concrete ceiling 3, which is formed by a shell-shaped recess body 2. The recess 1 created by the recess body has a width of 5-10 cm, preferably 6-8 cm, and a height of 4-10 cm, preferably 5-7 cm. The recess body 2 made of sheet metal or plastic can have, for example, a rectangular, trapezoidal or curved cross section. Before concreting the ceiling, the recess body 2 is fastened with means for nailing 5 onto the formwork 4 of the concrete ceiling 3 in order to prevent any displacement when the concrete is poured in. When demoulding, a cavity (recess 1) formed by the recess body 2 is formed adjacent to the underside of the concrete ceiling 3. It is also conceivable that the recess body 2 consists of dimensionally stable foam or the like, which is scraped out after the demoulding and thus produces the recess 1 .

The embodiment of Fig. 1 further comprises a rod 6, which extends on two sides through the wall of the recess body 2 and thereby forms an attachment section 6a and two anchoring sections 6b. The rod 6 is also attached to the recess body 2 before concreting the ceiling or is already firmly attached to the recess body 2 and is nailed together with this to the formwork 4. The hanging section 6a comes to rest completely in the recess 1 and is bent downwards in order to facilitate hanging of shackles, hooks, ropes or the like. By completely moving the trailer section into the concrete ceiling, no parts of the elevator assembly anchor protrude into the shaft head area of the elevator shaft. That leads to the whole Space of the elevator shaft to the ceiling can be used for the elevator. The two ends of the rod 6 extend 25-50 cm into the concrete ceiling 3 and form the two anchoring sections 6b. The rod 6 is pulled up at both ends in the region of the anchoring sections 6b in order to achieve a higher breakout resistance in the concrete ceiling. Depending on the length and thickness of the bar, loads of several tons can be carried. Such a device according to the invention can be used flexibly and can be easily adapted to the respective thickness of the concrete ceiling.

Fig. 2 shows a supervision of the in Fig. 1 mentioned embodiment. The recess body with a width of 5-10 cm, preferably 6-8 cm, is elongated with a length of 12-25 cm, preferably 15-20 cm. The elongated shape allows easy attachment of shackles, hooks, ropes or the like without significantly reducing the thickness of the concrete surface over a large area. Due to the asymmetrical arrangement of the attachment section 6a in the recess 1, shackles, hooks, ropes or the like can be attached even more easily from one side.

The above-described embodiment has the advantage that the attachment and anchoring sections 6a, 6b are formed by one and the same rod 6, which simplifies the manufacture of the elevator assembly anchor. The anchoring sections 6b can protrude as far as possible into the concrete ceiling 3. A very high breakout resistance can thus be achieved, which enables loads of several tons to be carried. Since the anchoring is led into the ceiling horizontally and not vertically, as in the case of conventional elevator mounting anchors, this embodiment can also be used in concrete ceilings of lesser strength and still carry loads of several tons.

The device in Fig. 3 corresponds to an embodiment of the invention and comprises a metal plate 10 lying in the concrete above the recess. This metal plate 10 forms the anchoring section and can extend over the recess in order to ensure better load distribution. By attaching at least one rod 12 to the metal plate 10, an even better load distribution can be achieved. The rod 12 extends, preferably on both sides, 25 - 50 cm above the Recess body 2 also. The rod 12 is preferably attached transversely to the longitudinal direction of the recess body 2. The attachment section 11 can have the shape of an eyelet or loop and is attached to the metal plate via a rod 13. The trailer section 11 comes to lie asymmetrically in the recess. As mentioned in the first preferred embodiment, the recess can be formed by a recess body 2 attached to the formwork 4.

Fig. 4 shows the in Fig. 3 mentioned embodiment seen in a sectional view from the side. The attachment section 11 has the shape of an eyelet or loop and can be fastened to the rod 13 fastened to the metal plate 10 via a clamping or screw sleeve 14. The asymmetrical arrangement of the attachment section 11 and the recess 1 facilitates attachment of shackles, hooks, ropes or the like. The metal plate 10 can additionally be anchored by at least one rod 12 for load distribution. The recess body 2 can be fastened to the formwork 4 of the concrete ceiling 3 with means for nailing 5 in order to prevent any displacement when the concrete is poured in.

Fig. 5 shows a supervision of the in 3 and 4 mentioned embodiment. The metal plate 10 projects beyond the recess body 2 on both sides for load distribution.

In this embodiment according to the invention, the hanging section 11 comes to lie in the cutout 1 and is thus set into the concrete ceiling 3. As a result, no part of the elevator assembly anchor projects into the shaft head area and the entire shaft head area can be used for the elevator. Through the metal plate 10 and the rod 12, load capacities of several tons can be achieved. Furthermore, the dimensions of the device can be chosen so that it can also be cast into concrete ceilings of low thickness.

The device in Fig. 6 corresponds to an embodiment according to the invention in a sectional view seen from the side and comprises a shaft anchor 20 which is located in the concrete ceiling 3 above the recess 1 and thereby forms the anchoring section. The shaft anchor 20 is through the wall of the recess body 2 through a clamping or screw sleeve 14 with the Trailer section 11 connected. The attachment section 11 can have the shape of an eyelet or loop and comes to lie completely in the recess 1. Thus, the trailer section 11 does not protrude into the head region of the elevator shaft. Furthermore, the attachment section 11 can be attached asymmetrically in order to facilitate attachment of shackles, hooks, ropes or the like. The recess body 2 can be fastened to the formwork 4 of the concrete ceiling 3 with means for nailing 5 in order to prevent any displacement.

LIST OF DESIGNATIONS

1

Recess

2nd

Recess body

3rd

Concrete floor

4th

formwork

5

Means for nailing

6

Rod

6a

Trailer section

6b

Anchoring section

10th

Metal plate

11

Anchoring section

12th

Rod

13

Rod

14

Clamp or screw sleeve

20th

Shaft anchor

Claims (10)

1. Use of an anchor having a suspension portion (6a; 11) for the suspension of shackles, hooks or cables, and at least one anchoring portion for casting into a concrete component (3), wherein the suspension portion (6a; 11) is arranged in a recess body (2) which is likewise provided for casting into the concrete component (3) adjacent to the formwork (4) thereof and which produces, in the concrete component (3), after the formwork has been stripped, a cavity (1) which surrounds the suspension portion (6a; 11) and which is adjacent to the formwork-stripped side of the concrete component, characterized in that the anchoring portion comprises a metal plate (10) which is situated above the recess body (2) and which is connected to the suspension portion (11) in the form of an eye or loop via a first bar (13) passing through the wall of the recess body (2), wherein at least one second bar (12) is fastened to the metal plate (10) for load distribution, and wherein the second bar (12) projects, preferably on both sides, by 25-50 cm beyond the metal plate (10), as lift assembly anchor in a concrete ceiling of a lift shaft, wherein the anchoring portion and the recess body are cast into the concrete ceiling such that the lift assembly anchor does not protrude into a shaft head region of the lift shaft by way of its suspension portion.
2. Use according to Claim 1, characterized in that the recess body (2) is of elongate design.
3. Use according to Claim 1 or 2, characterized in that the recess body (2) has a length of 12-25 cm, preferably 15-20 cm, a width of 5-10 cm, preferably 6-8 cm, and a height of 4-10 cm, preferably 5-7 cm.
4. Use according to one of Claims 1-3, characterized in that the recess body (2) consists of a dimensionally stable foam or the like which, after assembly, can be removed by being scraped out, for example, or in that the recess body (2) is in the form of a shell and has a wall made of sheet metal or plastic.
5. Use according to one of Claims 1-4, characterized in that the recess body (2) is provided with means for nailing (5) to the formwork (4) of the concrete ceiling (3).
6. Use according to Claim 1, characterized in that, for load distribution, the metal plate (10) projects on at least one side beyond the region of the recess (1) .
7. Use according to either of Claims 1 and 2, characterized in that the bar (12) projects on both sides by 25-50 cm beyond the metal plate (10).
8. Use according to one of Claims 1-7, characterized in that the suspension portion (6a; 11) is mounted asymmetrically to the longitudinal axis of the recess (1) in order to facilitate suspension from one side.
9. Lift assembly anchor having a suspension portion (11) for the suspension of shackles, hooks or cables, and at least one anchoring portion for casting into a concrete ceiling (3), wherein the suspension portion (11) is arranged in a recess body (2) which is likewise provided for casting into the concrete ceiling (3) adjacent to the lower formwork (4) thereof and which produces, in the concrete ceiling (3), after the formwork has been stripped, a cavity (1) which surrounds the suspension portion (11) and which is adjacent to the underside of the ceiling, characterized in that the anchoring portion comprises a metal plate (10) which is situated above the recess body (2) and which is connected to the suspension portion (11) in the form of an eye or loop via a first bar (13) passing through the wall of the recess body (2), wherein at least one second bar (12) is fastened to the metal plate (10) for load distribution, wherein the second bar (12) projects, preferably on both sides, by 25-50 cm beyond the metal plate (10), and wherein the lift assembly anchor, in the assembled state, does not protrude into a shaft head region of the lift shaft by way of its suspension portion (11).
10. Lift assembly anchor according to Claim 14, characterized in that the suspension portion (11) is mounted asymmetrically to the longitudinal axis of the recess (1) in order to facilitate suspension from one side.

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