Fluid handling – Systems – Articulated or swinging flow conduit
Patent
1992-11-25
1994-04-12
Schwadron, Martin P.
Fluid handling
Systems
Articulated or swinging flow conduit
137359, 137801, E03C 102
Patent
active
053017153
DESCRIPTION:
BRIEF SUMMARY
This invention concerns a sanitary fitting with a cylindrical body that can be mounted in a fixed position, with inlet and outlet channels and an outflow channel, with a cylindrical fitting sleeve pushed onto the fitting body and a pivot arm connected at the side with an outlet mouthpiece, with valve unit mounted on the fitting body and a cap connected to the fitting sleeve and covering the valve unit, where sealing rings are arranged between the fitting body and the fitting sleeve in the area of the outflow channel on the one hand and on the other hand there is an upper bearing ring and a lower bearing ring, where the bearing rings are preferably made of plastic, especially a low-friction, low-wear plastic, and the lower bearing ring is designed as an L-shaped cross section with a cylindrical section that forms a radial bearing and a protruding flange-like section that forms an axial bearing, and the upper bearing ring also has a cylindrical section that forms a radial bearing.
Sanitary fittings of this type are used especially in kitchens, especially in the form of single-lever single-hole kitchen batteries. With the known sanitary fitting on which this invention is based (see the installation and operating instructions for the "Eurodisc 33 891" sanitary fitting of Friedrich Grohe Armaturenfabrik GmbH +Co., 8/87), the cap is bolted to the valve unit. Moreover, there are two peripheral lip sealing rings above and below the peripheral outflow channel in the fitting sleeve between the fitting sleeve and the fitting body screwed in the sink. The valve unit in the form of a compact cartridge is mounted in a fixed position on the fitting body by means of mounting bolts. It is bolted to the body of the fitting with the help of two mounting bolts. The upper bearing ring is between the compact cartridge and the fitting body and is clamped between the cartridge and the fitting body with a flange that projects radially outward on the one hand and on the other hand together with the cylindrical section it serves as a radial bearing for the fitting sleeve. The lower bearing ring with the L-shaped cross section rests on a lower ring flange of the fitting body with its flange-like section and projects from there with its cylindrical section between the fitting body and the fitting sleeve so this forms both an axial bearing and a radial bearing for the fitting sleeve. The cylindrical section here is provided with a number of relatively wide radial slits, so the cylindrical section is formed by a number of individual elastic tongues, so to speak. Thus, the lower bearing ring can be put under tension in the fitting sleeve. The lower bearing ring is secured by the continuous circumferential flange-like section.
This invention is based on the problem of improving the design of the known sanitary fitting explained above.
The problem described above is solved by the fact that the lower bearing ring is designed so it is continuous in the cylindrical section and projects upward above the fitting sleeve with a projecting section which has radial catch projections for locking the cap in position. With the sanitary fitting according to this invention, the upper bearing ring not only has the function of providing radial bearing support for the fitting sleeve on the fitting body but instead the upper bearing ring also serves to secure the cap, which need not be screwed on as in the state of the art but now can be simply locked in position.
There are various possibilities of embodying and refining the teaching according to the present invention. To do so, reference is first made to the patent claims that are subordinate to Patent claim 1. Moreover, this invention in its various possible embodiments will now be explained in further detail in conjunction with the discussion of a preferred embodiment of this invention with reference to the figures which show the following.
FIG. 1 shows a side view with a partial cutaway of a preferred embodiment of a sanitary fitting according to this invention.
FIG. 2 shows a cross section through an u
REFERENCES:
patent: 4457342 (1984-07-01), Moen
patent: 4821764 (1989-04-01), Brenez
Friedrich Grohe, Eurodisc 33 891, Aug. 1987.
American Standard Inc.
Knab Ann M.
Lee Kevin L.
Robinson Elaine Brenner
Schwadron Martin P.
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