Supports – Machinery support
Patent
1998-10-15
2000-05-30
Ramirez, Ramon O
Supports
Machinery support
2481884, F16M 100, F16M 1124
Patent
active
060682345
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
Setting foot provided with: which interacts with the first screw thread of the first setting member, and which second setting member comprises, on a top side, an upwardly concavely curved surface, a fastening hole extending from the curved surface as far as a bottom end face of the second setting member, and curved surface of the second setting member and a throughbore which opens onto the first fastening hole.
BACKGROUND OF THE INVENTION
A setting foot of this kind is known from the European Patent EP-B-316,283. That patent describes a setting foot by means of which heavy machine components can be aligned accurately. In this case, the first setting member comprises a first ring with an internal screw thread on the inner wall of the central opening. The first ring of the setting foot is placed on a base, for example around a fastening bolt which extends through the central opening. The second setting member is likewise formed by a ring. The second ring engages by means of an external screw thread on the internal screw thread of the lower ring. The setting foot is vertically adjustable by rotating the rings with respect to one another. A machine which is positioned on the bearing plate can be screwed against the bearing plate by means of a nut and a bolt which runs from the base through the setting members. In this case, the curved surfaces of the bearing plate and the upper setting member interact such that the machine is aligned accurately.
A disadvantage of the known setting foot is that that part of the screw thread of the second ring which extends beyond the central opening of the first ring may be susceptible to contamination. As a result, a further vertical adjustment in the course of time is made more difficult, due to the fact that corrosion may occur or dirt may gather in the screw thread. The possibility of reuse of the known setting foot is likewise reduced as a result.
Furthermore, it has been found that that part of the curved surface of the upper setting member, or ring, which extends along the circumferential edge of the bearing plate is likewise susceptible to contamination and, as a result, may, for example, corrode.
Finally, it has been found that, in the event of a vertical adjustment of the setting foot by rotating the upper ring, it is possible for the screw thread of the upper ring to be rotated out of the screw thread of the central opening.
SUMMARY OF THE INVENTION
The object of the present invention is to provide a setting foot which avoids the abovementioned disadvantages.
To this end, a setting foot according to the invention is characterized in that a flexible sealing element is positioned around the central opening of the first setting member, which sealing element is connected, on the one hand, to the first or the second setting member and, on the other hand, interacts in a sealing manner with the other setting member and, in the event of rotation of the setting members with respect to one another bridges a varying spacing between the setting members. By providing a flexible material which, for example, on the one hand is connected to the upper setting member and on the other hand bears against the lower setting member, and which bridges the space between the upper and lower setting members, the screw thread is sufficiently protected from the environment. The sealing element may, for example, comprise a bellows which is connected to both the upper and the lower setting member and the length of which changes in the event of rotation of the setting members, or may be a ring made of a flexible material which is fixedly connected to one setting member and can slide freely along the other setting member.
A particularly advantageous setting foot, the first and the second setting members having essentially a cylindrical outer circumference with at least virtually identical external diameters, is characterized in that the sealing element comprises a ring made of a flexible material which, on the one hand, is fixedly connected to the outer circumference of
REFERENCES:
patent: 2385045 (1945-09-01), Wallace
patent: 2592942 (1952-04-01), Moore
patent: 3268996 (1966-08-01), Luketa
patent: 3891199 (1975-06-01), Willich et al.
patent: 4580996 (1986-04-01), Brissette
patent: 4877223 (1989-10-01), Hackett
patent: 5094424 (1992-03-01), Hartway
patent: 5636831 (1997-06-01), Gubitz
Heisey David
Ramirez Ramon O
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