EP0464162B1 - Sanitär-ablaufventil und verfahren zu seiner herstellung - Google Patents

Sanitär-ablaufventil und verfahren zu seiner herstellung Download PDF

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Publication number
EP0464162B1
EP0464162B1 EP19900916454 EP90916454A EP0464162B1 EP 0464162 B1 EP0464162 B1 EP 0464162B1 EP 19900916454 EP19900916454 EP 19900916454 EP 90916454 A EP90916454 A EP 90916454A EP 0464162 B1 EP0464162 B1 EP 0464162B1
Authority
EP
European Patent Office
Prior art keywords
collector
outlet
sanitary
valve
plastic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP19900916454
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0464162A1 (de
Inventor
Otto Huber
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BELINOX AG
Original Assignee
BELINOX AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BELINOX AG filed Critical BELINOX AG
Priority to AT90916454T priority Critical patent/ATE88774T1/de
Publication of EP0464162A1 publication Critical patent/EP0464162A1/de
Application granted granted Critical
Publication of EP0464162B1 publication Critical patent/EP0464162B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
    • E03C1/22—Outlet devices mounted in basins, baths, or sinks

Definitions

  • the invention relates to a sanitary drain valve according to claim 1, and a method for its production.
  • Valves of this type are primarily used on washing troughs for kitchens or bathrooms. Depending on the equipment requirements, certain models of drain valves are equipped with an overflow connection, but others are not. Different types of actuation are also used for the valve plug.
  • the valve plug can e.g. be operable with a pull rod, with a Bowden cable, or via a flexible shaft by means of a manual actuating element or by a controlled auxiliary drive. Since the valves are used in sheet metal troughs with wall thicknesses of 1 to 3 millimeters as well as in stone combinations with wall thicknesses of e.g. 20 mm are to be installed, universal fasteners must be provided, which can also withstand a heavy load during later assembly on the sink or on the tub. The resulting variety of types requires a modification of the injection mold as well as further constant changes during the manufacturing process, despite the use of a common basic type.
  • Drain valves with a cup made of chrome-nickel steel are known, onto which a plastic valve body is molded.
  • This plastic valve body contains the necessary connection threads, also actuating means for the valve plug and, if necessary, an overflow connection piece.
  • the cup is provided in the transition area to the plastic part with an outlet collar, which is produced in a separate process step by flow deformation.
  • this collar should merge as seamlessly as possible into the plastic part of the valve housing.
  • the crossing point gives rise to problems for various reasons.
  • the desired uniform, round shape of the collar does not always form during the deep-drawing process. Rather, there is a risk of a slightly wavy circular shape in the opening cross section. Such a wave form complicates the formation of a reliable valve closure with respect to the valve plug, so that the valve closure must be supported by a complex lip seal on the plug.
  • the outlet collar in the actual sealing area must be pressed in a separate and expensive post-processing step so that there is at least a uniform rounding there.
  • the manufacturing process can be optimized.
  • the process of the individual steps of the manufacturing process should be optimized in terms of materials and thus be made more cost-effective.
  • a simple O-ring can be used as the valve seal, without the need for an expensive lip seal. This enables a precisely closing drain valve with a relatively large outlet opening and an open passage to be implemented, the large open passage making maintenance and cleaning work on the drain considerably easier.
  • the simplified manufacturing process leads to a high quality product. The simplification of the manufacturing process is particularly noticeable in the saving of tool costs and in a significantly reduced total machining time.
  • cup 1 consists of a cup 1 made of chrome-nickel steel.
  • the goblet tapers to an outlet collar 2.
  • the circular-cylindrical outlet 3 begins with an inner wall 14, which is continued in the lower part in a plastic valve body 4.
  • the plastic valve body 4 encloses the outside of the cup 1.
  • the plastic body 4 contains in its upper outer part an insert thread 5 which cooperates with a nut 6 in order to fasten the drain valve in the basin 7.
  • the fastening is carried out by tightening the nut 6 against a flange 8 attached to the cup 1, which flange is pressed onto the edge of the pool opening with the interposition of a seal 9 when the nut 6 is tightened.
  • retaining grooves 10 projecting outwards are provided on the outside of the cup 1. These claw-like holding grooves can consist of several segments. A plurality of such grooves can also be provided offset radially and / or one above the other.
  • the retaining grooves 10 are preferably arranged in the area of the largest diameter of the cup, shortly before the transition to the bottom 11.
  • an actuating guide 12 for opening and closing the valve by pushing a valve plug 13 up and down can be contained in the lower part of the plastic valve body 4.
  • the valve plug is guided directly on the inner wall 14 of the outlet 3 mentioned above, that is to say in the upper part of the outlet directly on the inner wall of the outlet collar 2 and in the lower part of the outlet on the inner wall of the plastic part.
  • valve plug 13 has a seal 15 on the upper edge, with which the valve plug is sealed against the valve seat 16 on the upper edge of the outlet collar 2 when the valve is closed.
  • a simple O-ring seal is provided as the seal.
  • an overflow connection 17 can be provided in the lower outlet part of the plastic valve body 4.
  • the design with the relatively long outlet which is due to the described embodiments, requires a very precise transition, in particular on the inner wall of the outlet, between the outlet collar 2 and the rest of the plastic part.
  • the manufacturing process according to the present invention can be carried out Reduce two process steps: The first step consists in the combined punching and deep drawing, while the second step in combination involves pulling the outlet collar, repressing the valve seat and opening the groove and punching out the upper outer edge.
  • the manufacturing process according to the invention is reduced to two combination steps. This reduction also saves a considerable amount of time and thus a reduction in manufacturing costs.
  • An additional advantage is an absolutely smooth lower edge of the outlet collar, so that no rework is required at this point.
  • the plastic part connects seamlessly and without visible transitions or irregularities to the lower edge of the outlet collar on the cup 1. Since there are no undulations in the area of this outlet collar, there is no risk of hollow spaces between the plastic and the cup.
  • the perfect and continuous adhesion of the plastic material to the surface of the goblet in connection with the effect of the claw-like retaining grooves leads to an increased and absolutely reliable, because for all series parts uniform, resilience during later assembly in the basin.
  • the axial bracing that occurs Between the upper edge of the cup 1 and the plastic part by screwing, the retaining grooves in connection with the good adhesion of the plastic material to the cup surface reliably and correctly catches.
  • the inner wall of the outlet Because of the uniformity of the inner wall of the outlet, starting from the outlet collar 2 and in particular at the transition point to the plastic, the inner wall represents a continuously smooth guide for the valve plug 13.
  • the valve seat 15 is so evenly pressed out by the aforementioned combined processing step that a Post-processing is superfluous and the valve plug can also be sealed with a simple and inexpensive O-ring seal 16. Nevertheless, the valve seat is highly precise and reliable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Lift Valve (AREA)
  • Sliding Valves (AREA)
EP19900916454 1989-11-18 1990-11-19 Sanitär-ablaufventil und verfahren zu seiner herstellung Expired - Lifetime EP0464162B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90916454T ATE88774T1 (de) 1989-11-18 1990-11-19 Sanitaer-ablaufventil und verfahren zu seiner herstellung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4133/89 1989-11-18
CH413389A CH677685A5 (enrdf_load_stackoverflow) 1989-11-18 1989-11-18

Publications (2)

Publication Number Publication Date
EP0464162A1 EP0464162A1 (de) 1992-01-08
EP0464162B1 true EP0464162B1 (de) 1993-04-28

Family

ID=4270453

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900916454 Expired - Lifetime EP0464162B1 (de) 1989-11-18 1990-11-19 Sanitär-ablaufventil und verfahren zu seiner herstellung

Country Status (3)

Country Link
EP (1) EP0464162B1 (enrdf_load_stackoverflow)
CH (1) CH677685A5 (enrdf_load_stackoverflow)
WO (1) WO1991007551A1 (enrdf_load_stackoverflow)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3411628A (en) * 1966-02-21 1968-11-19 Nat Distillers Chem Corp Combination plastic-stainless steel sink strainer
US3509587A (en) * 1968-01-05 1970-05-05 Irving Fins Sink strainer body assembly
US4218785A (en) * 1979-04-16 1980-08-26 Bristol Products, Inc. Drain assembly for a lavatory basin

Also Published As

Publication number Publication date
CH677685A5 (enrdf_load_stackoverflow) 1991-06-14
EP0464162A1 (de) 1992-01-08
WO1991007551A1 (de) 1991-05-30

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