DE8118390U1 - MOUTH SHOWER - Google Patents

Description

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Udo Schlagwein

Patent attorney Lindenweg 7d - Tc!.: (00032) 85065 + 84827

D-6350 Bad Nauheim (Steinfurth)

Girnelli & Cd AG, CH-3G52 Zollikofen 22.G5.B1

Irrigator

The innovation relates to an oral irrigator for care and cleaning van teeth and gums, dykes an enclosure with a water tank that can be placed thereon, which has a bottom valve that is opened when the Water tank in open position by means of a plunger is held, but closes automatically when you lift the water tank. Such an irrigator is the subject DE-OS '15 28 366.

In the previously known oral irrigator, the bottom valve of the lid closes solely by the weight of its closing member, unless the lid is lifted off the housing. As a result, the forces moving the valve in the closing direction are relatively small, so that it can happen that the valve does not close completely, for example due to contamination in the valve seat, or opens temporarily due to vibrations of the container, so that water can run out of the water container. Particularly liable to occur in the prior art bottom valve of water, when I versehent ¹ with the lid, which is also a water tank, abuts against an object, for example against the housing of the mouth -

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shower when the lid is placed on this housing.

Of course, it is obvious to remedy this deficiency to bias the closing member of the bathing valve by a helical spring in the closing direction, so that higher Closing forces arise. Such a helical spring would, however, damage the bottom valve considerably increase in price, libs in a mass product, such as the oral irrigator, is of considerable importance.

The innovation is based on the task of an oral irrigator of the type mentioned at the outset, which has a base valve which is as simple as possible and has a closing element which is pretensioned by spring force in the closing direction.

This task is according to the innovation by the claim specified measures solved *

The advantages of the innovation arise in general in that in the case of the bottom valve of the oral irrigator according to the invention, the closing element is biased in a simple manner in the closing direction. By decomposing forces on the diverging conical surface create the feet of the closing member of the bottom valve an axially directed force on the closing member, so that this is biased in the closing direction without a separate valve spring. The closure member may be produced by injection molding with these feet readily from a commercially available cheap plastic uerden _v so that its manufacture is extremely cheap.

It is advantageous if, according to one embodiment of the innovation, the valve passage is below the valve seat

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initially one with increasing distance from the valve seat converging Hegel surface and then the diverging conical surface. In this embodiment that needs Closing element for assembly only from above into the valve aperture to be plugged. Due to the converging surface, the feet are initially compressed radially, until they are in the area of the diverging conical surface reach and spread there. As a result, the closing member is held in the valve passage at the same time without it this requires any additional measures.

The innovation allows numerous design options. An embodiment of the innovation is in the drawing shown schematically and is described below.

The drawing shows in section the area of the housing 1 of an oral irrigator which is essential for the innovation a part of an attached, as a water tank serving lid 2. Apart from the components shown in the drawing, the oral irrigator including their housing 1 and cover B 2 designed for example bo be, uiie according to the DE = DS mentioned at the beginning 15 2Θ 366.

In the lid 2 of the oral irrigator a bottom valve 3 is provided, which has a closing element * t with a conical surface 5 and a likewise conical valve seat 6. Below the valve seat 6 there is a valve passage 7, which initially has a converging surface that converges with increasing distance from the valve seat 6 θ and then has a conical surface 9 which diverges with increasing distance from the valve seat 6. Feet 1o of the closing element k rest against this diverging conical surface 9. The number of

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Feet 10 must be at least too low. Four FDBe 1o have proven to be useful. The FUBe 1o are biased radially outward and thereby pull the closing element k axially downward, as seen in the drawing, with its conical surface 5 against the valve seat

The housing 1 has a StQBeI 11 in the area of the bathing valve 3, which in the illustrated position of the cover 2 relative to the housing 1 just touches an extension 12 of the closing member h. If the cover 2 is on the Ge Housing 1 is fully in place, then the StSBeI lifts the closing member k upwards out of the valve seat 6 so that the bottom valve 3 is opened. If the cover 2 is lifted off the housing 1 again, then the feet pull the closing element k back into the position shown locked position.

Claims (2)

I · t a · • · ■ t Bimelli & Cd AG, CH-3D52 Zollikofen 22.D5.S1 claims for protection 1. Oral irrigator for the care and cleaning of teeth and gums, which has a housing with a water tank that can be placed thereon, which has a bottom valve that is held in the open position by means of a plunger when the water tank is in place, when the water tank is lifted off but closes automatically, thereby gekennzaichnet that the locking member (* O of the bottom valve (3) at least two resilient, according to has externally biased feet (10), which diverge against a with increasing distance from the U-valve seat (6) Conical surface (9) on the outlet side of the valve seat and that the housing (1) supports the plunger (11) for pushing open the bottom valve (3) when it is in place has serving as a water container lid (2). 2. Oral irrigator according to claim 1, characterized in that ■ that the V / entildurchlaß (7) below the valve seat (6) initially converging with increasing distance from the valve seat (6) Conical surface (B) and then the diverging conical surface 2D (9) has.