Static structures (e.g. – buildings) – Shaft with embedding wing-type brace – Wings in different planes
Patent
1982-04-09
1984-09-18
Friedman, Carl D.
Static structures (e.g., buildings)
Shaft with embedding wing-type brace
Wings in different planes
52157, 52165, E04H 1220
Patent
active
044715889
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a tie rod with a screwing disk having a hollow anchoring rod pointed at the bottom end and provided with an attachment device at the top end.
Tie rods are used as a replacement for strip or spot foundations for carrying loads or light-weight structures located e.g. on pallets. Known tie rods are mainly constructed for tensile anchoring means. They cannot bear working loads or can only bear them to a limited extent. In addition, the known tie rods have the disadvantage that forces acting vertically to the longitudinal axis thereof, such as e.g. horizontally acting wind pressure loads cannot be taken up, because then the tie rods tilt around the screwing disks in the soil. It is therefore necessary to additionally secure by means of inclined brackets or the like objects supported on tie rods and exposed to wind pressure loads. This considerably increases the assembly effort and expenditure.
The problem of the invention is to provide a tie rod which can be fitted in conventional manner and which is suitable for taking vertical and horizontal loads.
According to the invention, this problem is solved in that the support plate of the attachment device is constructed as to be displaceable coaxially to the anchoring rod, on which is mounted a spreading foot displaceable between the screwing disk and a stop at the top end of the anchoring rod. The tie rod constructed in this way is ideally suited for use in loose soils, such as fine gravel or sand.
Further features of the invention are described in the subclaims and are illustrated hereinafter by means of the tie rod shown in the drawings. In the drawings show:
FIG. 1a a side view of the tie rod according to the invention.
FIG. 1b a plan view of the tie rod according to FIG. 1a.
FIG. 1c the top end of the tie rod according to FIG. 1a in a larger scale detailed side view.
FIGS. 2a to 4c further embodiments of the spreading foot for the tie rod according to FIG. 1 in side views and plan views.
FIGS. 5a and 5b the tie rod according to FIG. 1 in side views and different installation positions.
FIG. 6 another construction of the tie rod according to the invention in side view and partly in section.
Tie rod 1 shown in FIG. 1a comprises an anchoring rod 2 with a chamfered bottom end 5. Above the latter, a helically constructed screwing disk 3 is connected to the anchoring rod 2. An attachment device 6 is constructed on the top end 4 of the anchoring rod 2. A stop 29 is located below the attachment device 6. Between stop 29 and screwing disk 3 there is a spreading foot 15, which is displaceably mounted on the anchoring rod between stop 29 and screwing disk 3. Attachment device 6 comprises a support plate 7, which is displaceable coaxially with respect to the central axis 14 of anchoring rod 2. For this purpose, a threaded sleeve 8 constructed as a threaded nut is provided on the top end 4 and into it is screwed a threaded bolt 9. Support plate 7 is fixed to the free end 10 of threaded bolt 9 (FIG. 1c). Support plate 7 has openings 11, through which are inserted screws 12, by means of which the support member 13 is fixed to support plate 7. A pallet or the like can be fixed to support plate 7 by means of screws 12 in place of support member 13.
Below the threaded sleeve 8, two facing openings 27 are formed on the top end 4 of anchoring rod 2 and through which can be inserted a bolt 28 and stop 29. To secure bolt 28 against loss, it is possible to use a separate, not shown shim. This shim can be constructed as an elastic packing ring, fixed in openings 27. When the bolt 28 is guided by the picking rings, the latter elastically engage on bolt 28 and secure it against loss. The shims can, for example also be replaced by a safety chain, which is fixed to the free ends of bolt 28.
The spreading foot 15 comprises a sleeve 16 displaceably mounted on anchoring rod 2 and on which supports 17a, 17b, 17c are positioned radially with respect to rod 2 (FIGS. 2b, 2c, 3b). The number of supports 17a, 17b, 17c is unlimited. However, advantageously at least three su
REFERENCES:
patent: 1373560 (1921-04-01), Holland
patent: 1606146 (1926-11-01), Cole et al.
patent: 2395033 (1946-02-01), Black
patent: 3011597 (1961-12-01), Galloway et al.
patent: 3011598 (1961-12-01), Galloway
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