DE8808175U1 - Drain and overflow fittings for bathtubs, shower trays, etc. - Google Patents

Description

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Patent Attorneys Dr. Loesenbeck (198O)

DipWng. Stracke Dipl.-ing. Loesenbeck

Jollenbecker Str. 164,4800 Bielefeld

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Franz Viegener I I , Ennester Weg 9, 5952 Attendorn

Drain and overflow fittings for bathtubs, shower trays or similar.

The innovation relates to a drain and overflow fitting for bathtubs, shower trays or similar with an overflow body, a vertical overflow pipe, a drain valve and a horizontal pipe leg provided between the drain valve and the overflow pipe, which consists of two pipes inserted into one another.

A drain and overflow fitting of this type is known in which the pipe leg connecting the drain valve with the vertical overflow pipe consists of two pipes inserted into one another, of which the outer pipe is equipped with a thread onto which a union nut previously slipped onto the inner pipe is screwed, which rests with an annular surface on a sealing ring which interacts with an inclined surface in the area of the thread and is pressed onto the inner pipe when the union nut is tightened. This not only creates a seal between the outer pipe and the inner pipe, but also fixes the position of the inner pipe in relation to the outer pipe.

The screw connection between the two pipes forming the pipe leg

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ren is structurally complex.

The innovation is based on the task of designing a drain and overflow fitting of the type mentioned at the beginning in such a way that the horizontal pipe leg is continuously adjustable without the use of a ^screw connection.

This problem is solved according to the innovation in that the outer pipe of the pipe branch provided between the drain valve and the vertical overflow pipe has a form-fitting and force-fitting sealing sleeve at its free end* which, with a sleeve-shaped end part projecting beyond the outer pipe, encloses the inner pipe in a force-fitting and liquid-tight manner.

With the tube leg, the change in length can be achieved exclusively by tensile or compressive stress on the pipes that are inserted into one another and connected in a liquid-tight manner.

Further features of the innovation emerge from the subclaims and the following description of an embodiment which is described in the

Drawing is shown in section. ,

C 20 The drawing shows a section of the overflow pipe 1, which extends from the overflow body (not shown) and which has a horizontal |

1 Pipe leg 2 is connected to the drain valve 3. |

The plug 4 of the drain valve is shown in the drawing in a | disassembled position. This plug has an adjusting screw 5, which interacts with a lever arm 6 of a shaft 7, which is rotatably mounted in the valve housing 8 and can be operated via a power transmission means from a rotary handle of the overflow body.

The pipe leg 2 provided between the overflow pipe 1 and the drain valve 3 consists of an external pipe 9 and an internal

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The outer tube 9 has a sealing sleeve 11 at its free end, which encloses the inner tube 10 with a hollow, mustard-shaped end part 12 that projects beyond the outer tube 9, so that the two tubes 9 and 10 are sealed fluid-tight against one another by the sealing sleeve 11.

The sealing sleeve 11, which is preferably made of rubber or a rubber-like plastic, has a fastening foot 13 which, in the embodiment shown, is provided with two annular grooves which are open to the inside and engage in the anchoring ribs 14 of the outer pipe 9.

The fastening foot 13 is thus fixed to the pipe 9 in a form-fitting manner but also in a force-fitting manner due to the material elasticity of the sealing sleeve.

In a modification of the embodiment shown, the fastening foot of the sealing sleeve 11 can also be equipped with one or more than two annular grooves and the external pipe 9 can be provided with one or more than two anchoring ribs 14.

In order to increase the adjustment range of the vertical pipe leg 2, in the embodiment shown, the outer pipe 9 has a further unit of anchoring ribs 14 arranged at a distance from one another, so that the pipe 9 can also be cut off up to this second unit in front of the anchoring ribs and the sealing sleeve 11, as shown in the drawing in dash-dotted lines, can be placed on this second anchoring rib unit.

The ring-shaped anchoring ribs 14 arranged at a distance from one another have a rectangular cross-section in the exemplary embodiment. This cross-section can also have a different geometric design.

Claims (3)

• · • ·· · 1 · · ■ ■ • * 1 • · · · · ■ ti , I » »I Il Il Viegener - 1 - Protection claims 1. Drain and overflow fitting for bathtubs, shower trays or similar with an upper body, a vertical overflow pipe extending therefrom, a drain valve and a horizontal pipe leg provided between the drain valve and the overflow pipe (&igr;), which consists of two interlocking pipes, characterized in that the outer pipe has a positively and non-positively fixed sealing sleeve (11) at its free end, which encloses the inner pipe (10) in a force-tight and liquid-tight manner with a sleeve-shaped end part (12) projecting beyond the outer pipe (9). 2. Drain and overflow on drms^r according to claim 1, characterized in that the outer tube (9) has at least two spaced apart, annular anchoring ribs (14) adjacent to its free end, each of which engages in an annular groove of a fastening foot (13) of the sealing sleeve (11). * 3. Drain and overflow fitting according to claim 1 or 2, characterized in that the external pipe (9) has one or more anchoring rib units arranged at a distance from one another.