EP2789324A1 - Sauna stove grate for soft infusion - Google Patents

Abstract

The invention relates to a top cover (1) for a sauna stove (2) which has an upwardly open region with heat storage mass (2.1) contained therein, wherein the cover (1) represents a surface which by a plurality of openings (1.3) in vertical direction is broken. The surface formed by the cover has a plurality of upwardly open and downwardly closed vessels, wherein an edge of each vessel is also the edge of an opening (1.3) and wherein this edge is higher than the bottom of the vessel.

Description

The invention relates to an upper cover for a sauna heater.

Sauna stoves have heating and a heat storage mass and offer the possibility to evaporate water.

Concerning the evaporation of water one can distinguish two principles. According to one principle, water is emptied or sprayed directly onto a previously dry, hot heat storage mass, which is usually made of hot stones, and evaporates rapidly completely therefrom. According to the other principle is used by the sauna heater on or in this, upwardly open evaporator vessel containing permanently liquid water is heated by the heater and kept hot and thus continuously releases water vapor.

The DE 3834755 A1 shows a heater with a arranged above this tub, which contains water and typically also an active ingredient and is heated from below by the rising from the heater hot air.

The CH 50 503959 A shows a heater in which water is evaporated according to both principles mentioned above. The furnace has a heated, open-topped cavity, in which coarse stones are contained as a hot heat storage mass, on which can be sprayed through an overhead shower head water. Furthermore, the heater contains under the cavity with the stones - and separated from this by a grid - a heated tub, which contains liquid water. In the controlled operating condition, water is continuously evaporated from the tub. As soon as the water level under the tub sinks below a preset switching threshold, water is automatically sprayed through the shower head above the stones onto the stones. This water partly evaporates immediately on the stones, partly it flows down the stones down to the tub, so that rises in the water level again.

In the DE 203 04 905 U1 an additional device for a heater is proposed. The heater has an upwardly open heated cavity in which stones are arranged as a hot heat storage mass on. The attachment is a conically pointed downwardly tapered vessel which laterally has support feet and may contain water. As intended, this vessel is easy to place on top of the stones of the sauna heater, so that a continuous evaporation operation is established.

The DE 2601173 C2 shows a heater with open-topped heated cavity in which stones are arranged as heat storage mass. Above the heater is a horizontally aligned grid-shaped protective cover. By the protective cover to prevent objects, especially textiles can come to the hot stones. In the case according to the DE 2601173 C2 The protective cover is also sensory monitored, so that the heating of the heater is automatically switched off when something is placed on the protective cover.

Also the DE 1616175 B1 shows a heater with upwardly open heated cavity in which stones are arranged as a hot heat storage mass. At a small distance above the opening of the cavity, a shell is arranged in which also stones may lie and which has at its lowest surface area several holes, so that water, which is poured from above into the shell, if it does not evaporate immediately, completely to the flows under the shell stones.

The object underlying the invention presented here is to provide a top cover for a heater, wherein the heater has an upwardly open area with heat storage mass contained therein.

The cover is to allow both rapid, relatively short time evaporation of water by contact with pre-heated heat storage mass, as well as provide the opportunity to evaporate water from a heated vessel continuously over a longer period of time.

To achieve the object, the invention proposes to form the cover as a surface, which consists of a plurality of upwardly open and closed down vessels and which is pierced by openings, which are located between the vessels with the edges of the openings are higher than the lowest points (bottoms) of the vessels.

This easy-to-implement design ensures that water from above can flow directly through the openings in the cover on the area with the heated heat storage mass, but also water can remain in the vessels of the cover and from there over a longer Period can evaporate continuously.

In a preferred further development of the invention, the cover can also be arranged in a position pivoted through 180 ° about a horizontal axis, ie with a reversed upper and lower side over the heater, and then has no vessels on its upper side which are closed downwards.

Thus, the cover can also be used so that after pouring water on the cover, no water in vessels remains in cover, but evaporates all water immediately on the cover and the underlying heat storage mass.

Fig. 1:

zeigt etwas stilisiert in seitlicher Schnittansicht eine beispielhafte erfindungsgemäße Abdeckung an einem beispielhaften Saunaofen.

Fig. 2:

zeigt die Anordnung von Fig. 1 wobei die Abdeckung gegenüber der Lage von Fig. 1 um eine horizontale Achse um 180° gedreht ist.

Further advantageous embodiments will be explained with reference to drawings.

Fig. 1:

shows somewhat stylized in side sectional view of an exemplary cover according to the invention on an exemplary heater.

Fig. 2:

shows the arrangement of Fig. 1 the cover over the location of Fig. 1 rotated by 180 ° about a horizontal axis.

The drawings show an exemplary sauna heater 2 and an exemplary cover 1 according to the invention.

The heater 2 has a still open at the top heated cavity in which stones 2.1 are arranged as a heat storage mass. The cover 1 consists in the illustrated example of a rectangular frame 1.1 and a plurality of mutually parallel profiled blades 1.2, which extend between two opposite sides of the frame 1.1 and are arranged to each other at a small distance. Due to the small distance between adjacent profiled slats 1.2, the cover 1 thus has a series of oblong openings 1.3, which break through the cover vertically.

The profile blades 1.2 have a curved to limit a groove 1.2.1 cross-sectional surface area.

In the arrangement according to Fig. 1 the grooves on the curved cross-sectional surface areas 1.2.1 are open at the top and closed at the bottom. If water is poured onto the cover from above, then water will remain in the grooves so that each profile slat 1.2 a small elongated lake 3 is formed. In the arrangement according to Fig. 1 is the cover 1 not only cover but also evaporator vessel of a sauna heater. So it is also water reservoir, which is heated by the heater and from which over a longer period continuously a small amount of water per unit time is given as water vapor.

One of the two lateral boundary lines of the opening surface of each groove is at the same time lateral boundary line of the nearest opening 1.3 through the cover. If more water is emptied onto a lamella 1.2 than can be taken in the groove delimited by the lamella, the excess water flows through the adjacent opening 1.3 and drips onto the stones 1.2, which form the hot heat storage mass of the sauna heater 2.

By not having a single large opening and a single receptacle for receiving water, the cover achieves that excess water, which is poured onto the cover, flows through the heat storage mass distributed in several small flows rather than in a single concentrated surge. In addition, so that the heating and ventilation of the many many "small" lakes 3 by uplifting at the individual vessels hot air better than if only a single "big" lake was present.

In addition, since a surface part of each lamella 1.2 protrudes clearly above that edge which delimits an opening 1.3 and a groove 1.2.1 from one another, the surface of the cover always looks dry when viewed from above, even if a large amount of water is stored in the cover , It can also be placed or placed on the cover without getting wet even though the cover contains water.

In the arrangement according to Fig. 2 the cover 1 has no area, which represents a downwardly closed vessel. Water, which is emptied onto the cover 1 from above, flows down the individual lamellae 1.2 through the openings 1.3 and drips or flows away from the cover onto the stones 2.1. Intended to evaporate on these hot stones, the water almost immediately and gets back through the openings 1.3 as water vapor in the sauna room. The order according to Fig. 2 is therefore suitable for those operating modes of the sauna, in which the air in the sauna room is cyclically heated and dried once and once - the infusion - is loaded with moisture over a relatively short period of time.

In a further development of the cover according to the invention needs for the change between by Fig. 1 and Fig. 2 represented operational states not to be turned over the entire cover about a horizontal axis by 180 ° but it only need those parts of the cover, which can form troughs for receiving water, are pivoted relative to the frame of the cover to horizontal axes so that they in one Case down closed trays and in the other case consistently downwards open areas.

For example, one could for this purpose fix the slats 1.2 rotatably on the frame 1, wherein the axes of rotation would be parallel to the longitudinal direction of the slats. For example, by means of a rod which connects all the slats above or below their axes of rotation and is movable horizontally normal to the axes of rotation, all slats could be rotated together.

The design with slats 1.2 made of elongated profiles is very easy to implement, visually beautiful and certainly Zweckerfüllend. But there are also other, more comfortable to use constructions conceivable.

For example, a series of waves may extend parallel and at a distance from one another between opposite frame parts of the frame of the cover and be held rotatably mounted on these frame parts. On every single wave, a whole series of vessels can be rigidly fastened.

In a further exemplary construction, the cover can also be constructed from a plurality of, for example, square shells, wherein all the left edges of the shells at a first Subframe are pivotally mounted and all right edges of the shells are pivotally mounted on a second sub-frame and wherein the two sub-frames are movable relative to each other in the vertical direction and can be fixed in individual positions. Thus, the shells could be changed together in their position between a horizontal and a tilted orientation.

The somewhat generalized rule behind the last-mentioned example states that a plurality of vessels are each pivotally mounted to two, all these vessels subframe, all pivot axes must be aligned parallel to each other and wherein the two sub-frames relative to each other and normal to the direction of Swivel axes must be positionally changeable. By changing the position of the two subframes to each other, it changes the pivotal position of all vessels connected to the subframes.

Claims (7)

Upper cover (1) for a sauna heater (2) which has an upwardly open area with heat storage mass (2.1) contained therein, wherein the cover (1) represents a surface which is perforated by a plurality of openings (1.3) in the vertical direction .
characterized in that
the surface has a plurality of upwardly open and downwardly closed vessels, one edge of each vessel also being the edge of an opening (1.3), and wherein this edge is higher than the bottom of the vessel. Cover (1) according to claim 1, characterized in that the individual vessels are rigidly fixed relative to each other and that the cover as a whole in a pivoted by 180 ° about a horizontal axis position above the heater can be arranged and then at the top then Side has no closed down vessels. Cover (1) according to claim 1 or 2, characterized in that the cover has a frame (1) and this over-spanning profiled blades (1.2), wherein the profiled blades (1.2) are arranged parallel to each other and at a distance from each other and connect two opposite frame sides and wherein a profile blade (1.2) in cross-sectional view has a curved to a trough cross-sectional area (1.2.1). Cover according to claim 1, characterized in that the individual vessels are pivotable relative to a common frame on which they are held. Cover according to claim 4, characterized in that profile blades extend parallel and at a distance from each other between opposite frame parts and are rotatably mounted on these frame parts, wherein the axes of rotation are aligned parallel to the longitudinal direction of the profile blades. Cover according to claim 4, characterized in that vessels are rigidly fixed to shafts which extend parallel to each other and at a distance from each other between opposite frame parts of the cover and are rotatably supported on these frame parts. Cover according to claim 4, characterized in that a plurality of vessels are each pivotally mounted on two sub-frames, wherein all the pivot axes are aligned parallel to each other, wherein the two sub-frames are positionally variable relative to each other and normal to the direction of the pivot axes.

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