EP2634329A2 - Door handle with fluid circuit, door with such a door handle, use of a fluid circuit for regulating the temperature of a door handle - Google Patents

Abstract

The gripping device (1) has a fluid circuit (3) for controlling the gripping device, where the gripping device is designed for mounting to a fastening element (9) and extends on both sides of the fastening element in the mounting condition. The gripping device on one side of the fastening element has an upper surface enlarged in comparison to another side. The gripping device has a fluid-passage opening (15) acts as a fluid-inlet or fluid-outlet. A closure element (13) is arranged to the fastening element around the gripping device.

Description

FIELD OF THE INVENTION

The present invention generally relates to a door handle, in particular for a wellness device.

BACKGROUND OF THE INVENTION

Handle devices are well known and serve to open and close, for example, a door or a window. Also, grip devices are designed as support and support structures, for example as a railing. Both rigid and pivotable gripping devices are known.

Also, grip devices for wellness facilities, such as saunas or steam baths are known, which serve for example for opening or closing a sauna door. So revealed the DE 10 2008 056 587 A1 a wellness facility that can be closed with a glass door with a handle.

Known from the prior art gripping devices are often expensive to manufacture. In particular, these are limited in the choice of materials and therefore do not meet all aesthetic requirements.

OBJECT OF THE INVENTION

Object of the present invention is to provide solutions that solve disadvantages of known grip devices or at least reduce.

BRIEF DESCRIPTION OF THE INVENTION

To achieve the object, the invention provides a door handle with a fluid circuit for controlling the temperature of the door handle. Also, the invention provides a door with such a door handle and the use of a fluid circuit for controlling the temperature of a door handle.

Further preferred embodiments are given in the dependent claims, the following description and the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1

eine Schnittansicht einer schematischen Darstellung einer Ausführungsform eines Türgriffs;

Fig. 2

eine vergrößerte Detailansicht der Querschnittsdarstellung der Ausführungsform aus Fig. 1;

Fig. 3

eine Schnittansicht einer weiteren Ausführungsform einesTürgriffs;

Fig. 4

eine Schnittansicht einer weiteren Ausführungsform eines Türgriffs;

Fig. 5

eine weitere Schnittansicht einer Ausführungsform;

Fig. 6

eine Schnittansicht einer weiteren Ausführungsform,

Fig. 7a

eine Schnittansicht einer weiteren Ausführungsform, und

Fig. 7b

eine Querschnittsansicht des Türgriffs aus Fig. 7a entlang der Linie A-A.

With reference to the accompanying schematic drawings, embodiments of the invention are explained in more detail below by way of example. The drawings show:

Fig. 1

a sectional view of a schematic representation of an embodiment of a door handle;

Fig. 2

an enlarged detail view of the cross-sectional view of the embodiment of Fig. 1 ;

Fig. 3

a sectional view of another embodiment of a door handle;

Fig. 4

a sectional view of another embodiment of a door handle;

Fig. 5

another sectional view of an embodiment;

Fig. 6

a sectional view of another embodiment,

Fig. 7a

a sectional view of another embodiment, and

Fig. 7b

a cross-sectional view of the door handle Fig. 7a along the line AA.

DETAILED DESCRIPTION OF THE DRAWINGS

Before a detailed description of the drawings initially followed by further embodiments of the invention.

A grip device with a fluid circuit can be used for opening and closing windows, doors, flaps, in particular in wellness facilities. In this case, the door handle can be arranged in all positions in appropriate positions. The fluid circuit is located inside the door handle. In the simplest embodiment, for example, the door handle may comprise a rod tube in the interior of which fluid can circulate in circulation. An inclined or vertical position of the door handle improves the circulation of the fluid

This is particularly important for a high temperature difference between two areas / rooms of importance, since then the door handle can be formed of a heat or Kälteleitfähigen material and yet in a very cold or warm area / space can be taken safely and without injury. As fluid here any suitable fluid, such as water, oil or gases or the like, can be used. Especially in spa facilities, such as a sauna, there are often high temperature differences between the interior of the sauna and the outdoor area outside the sauna. A provided with a fluid circuit door handle advantageously allows a wider choice of materials and in particular also allows the use of metals and high-quality thermally conductive materials, since the fluid circuit can cool the door handle inside the sauna sufficient.

The fluid arranged in the interior of the door handle heats up in the interior of the wellness device, so that the fluid in the door handle rises upward and pushes outward via the fluid circuit. On the outside takes place outside the Wellnesseinrichtung, a cooling of the fluid, so that due to the principle of inertia, the cooled fluid drops down. Thus, a door handle on the warmer or hot inside can be heated and cools on the outside.

It is also possible to use the door handle, for example, for refrigerators, in which case the fluid circuit circulates the other way around, ie cools down in the interior and warms up outside.

Metal handles also increase the aesthetic value of a door or window or railing equipped therewith. In particular, these offer an alternative to the previously used in the sauna interior mostly solid wood handles. According to the invention can thus ensure a high-quality door handle that prevents injuries such as burns and the like.

The door handle can be designed for mounting on a fastening element and extend in the mounted state on both sides of a fastening element.

As a fastener, for example, a window or a door can be provided. The one side is then arranged in each case in the interior and the other side of the door handle in the outer area, so that due to a Temperature gradient between inside and outside a temperature control takes place automatically.

The door handle may comprise on one side of the fastener an enlarged surface compared to the other side. In this case, all suitable shapes such as squares, rectangles, oval or the like can be used. Due to the surface enlargement, in particular on the outside, a larger surface is provided here, which improves the cooling or heating behavior on the cooler or warmer outside. Also, the inner diameter of the door handle can be increased such that the fluid flows faster in this area and thereby cools or heats up improved.

Furthermore, the door handle may include at least one fluid passage opening acting as a fluid inlet or fluid outlet. Such a fluid passage opening may be arranged at a suitable position of the door handle. Preferably, this fluid passage opening is designed to be closed. This allows fluid to fill in the interior of the door handle or drain. Optionally, a second fluid passage opening may also be provided. For example, in an arrangement in the lower region of the door handle so the door handle can be quickly discharged from the fluid and refilled with a disposed on the top fluid inlet opening. This allows a quick fluid exchange in the door handle.

In the door handle, at least in the region of, that is to say in or close to the fastening element, a fluid passage element in the fluid circuit can be arranged and formed in a fluid-tight manner. The passage element may be, for example, a fluid passage element which is used only in partial areas of the fluid circuit. The simplest embodiment of a fluid passage element is a tube insert. A fluid-tight connection with the fluid circuit can then take place via suitable measures, such as bonding, welding or otherwise sealing the fluid passage element with the fluid circuit.

Alternatively, the fluid passage element may line the entire inner diameter of the fluid circuit, so that, for example, the fluid circuit is guided in an inner tube or a square inner channel and is surrounded by an outer tube or inner channel or another geometric configuration. You can combine different materials. Also, a surface refinement can be achieved with cost-effective means.

Around the door handle can also be arranged on the fastener a closure element. Such a closure element can surround the door handle in suitable geometries. This allows a decorative finish, for example, a rosette or other square or other design allow. In addition, the closure element can also exert a sealing function in addition to the veneering function and seal a region of the door handle, which penetrates through the fastening element, with respect to the outside area.

The door handle may be integrally formed. In this case, for example, the door handle during manufacture of the fastening element, such as a door made of a glass, plastic or the like can be used therein.

Alternatively, the door handle may be formed at least in two parts. Advantageously, such a door handle can be subsequently inserted into a finished fastener, such as a door. For this purpose, either in the manufacture of the fastener or subsequently formed a corresponding passage opening or recess within the fastener through which the door handle is performed from both sides or from one side to be coupled to the second part of the door handle. In this case, also the fluid passage element can pass through the fastening element and can connect the at least two parts of the door handle.

In the door handle, an insert element for reducing the diameter of the fluid circuit can be provided within the fluid circuit. The insert element is preferably used centered in the fluid circuit, so that the Fluid flows past the side while reducing the amount of fluid flowing past. Preferably, the insert element is provided on the warmer side of the door handle in the interior of the door handle. In this case, the insert reduces the amount of heated fluid flowing past. When passing the warm fluid to the colder outer side, the reduced amount of fluid advantageously cools faster. The insert element may for example be made of plastic or other suitable materials.

In this case, a fluid guide element is preferably provided close to the transition of the fluid from the warm inner region to the colder outer region of the door handle. In particular, in the case of an enlarged surface of the door handle on the outside can be redirected via the fluid guide element, the fluid in enlarged outer areas as a circulation aid to accelerate cooling of the fluid in addition. The fluid guide element can be made, for example, from plastic, sheet metal or other suitable, in particular elastic materials.

In the door handle may further be provided at least one spacer element which spaces the insert element within the fluid circuit from the inner diameter of the door handle. As the at least one spacer element, for example, one or more wire pins, wire spring pins or other suitable fastening means may be provided. Basically, a spacer element is sufficient to hold the insert element in the door handle. The use of a plurality of spacer elements has the advantage that the insert element is securely held in a defined position, in particular centered.

Overall, the preferred embodiments provide a flexible versatile. usable handle device ready.

In the sequence used location designations, such as above, below, front, back, right and left refer to a viewer in front of him in cross-section arranged door handle.

Fig. 1 shows an embodiment of a door handle 1 and according to the invention Fig. 2 an enlarged cross-sectional view of a section of the embodiment of Fig. 1 , Fig. 3 to 6 show further embodiments of a door handle. 1

The door handle 1 in Fig. 1 is formed at right angles and extends on both sides of a fastener, which is shown here as a door leaf of a glass door 9. The glass door 9 can complete an interior, such as a wellness facility such as a sauna from an outdoor area. When the door is closed, the area 7 of the door handle 1 assigned to the inside is arranged inside the sauna. The outside area 5 of the door handle 1 is outside the sauna. In operation, there is a high temperature gradient between indoor and outdoor sauna area. Indoors, the temperatures close to the door can be between 80 and 90 °, with outdoor average values of about 20 °.

Within the door handle 1, a fluid circuit 3 is formed. For this purpose, fluid is filled via an inlet or outlet opening 11 into the interior of the door handle. As a suitable fluid, for example, water or oil has been found suitable. Schematically 3 arrows are marked with directional information inside the fluid circuit. In the sauna interior increases when entering the lower region of the inner side 7 of the door handle 1, the temperature of the fluid, for example, to 50 °, so that the heated and warming fluid rises. In this case, the fluid heats up further and is conducted at the upper end of the inner side 7 of the door handle 1 to the outside through the glass door 9.

In the outer region, the fluid cools again and releases the heat via the outside 5 of the door handle 1 to the environment. The cooling fluid sinks down. Thus, in operation, the fluid and thus surrounding the surrounding grip area of the door handle 1 in the interior of the sauna is warmer and cooler on the outside. However, the constantly trailing or circulating fluid at least partially absorbs the heat from the surrounding grip area, thereby cooling the grip area. The fluid circulation thus enables a heat balance or a tempering of the door handle 1, the appropriate materials, such as metals or precious metals and other allowed for the formation of the door handle 1.

Optionally, a fluid passage element, which is shown here as a tube-like portion (11), be disposed within the fluid circuit. Such an inner tube may line parts of the door handle 1 from the inside or else the entire handle, and thus the entire fluid circuit 3. Especially when retrofitted to a prefabricated door or window, the pipe section within the door allows a small diameter of the fluid circuit, so that the forces do not act directly on the edge area. By contrast, the outer region of the door handle 1 surrounding the pipe section 11 is arranged offset on the door 9 in order to reduce the loads on the door leaf. The pipe section 11 is sealed against the surrounding handle portion. For this purpose, for example, appropriate sealing material may be introduced or both elements may be glued or welded together or suitably connected.

The embodiments in 3 and 4 show alternatively door handles 1, with a 5 enlarged in the outer area surface. Also, here, the inner diameter of the fluid circuit 3 can be increased.

In the embodiment according to Fig. 3 The fluid cools both in the upper and in the lower region 5a, 5b and generates on the other side in the interior by the rise of the fluid a kind of suction, so that the fluid enters the interior of the door handle 1 from the outside. Due to the increase in surface area, the throughput speed increases in the outdoor area. This improves heat dissipation of the door handle 1 in the outdoor area.

In the embodiment according to Fig. 4 improves the heat exchange with the environment and the flow rate through round corners. In each case, a closable fluid filling opening or outlet opening is provided. Furthermore, the embodiments according to FIG FIGS. 5 and 6 further geometric configurations of the door handle 1. Here, a variety of suitable geometries are possible. The door handle can be made in all variants, which allows a fluid circulation inside.

The embodiments in Fig. 7a and b show a door handle 1 with an insert member 17 for diameter reduction of the fluid circuit. The door handle 1 extends on both sides of a door leaf, such as a glass door 9 and may be formed in one piece or in several parts. The glass door 9, an interior, such as a spa facility, such as a sauna, from an outdoor area complete. In a sauna indoors, the temperatures near the door are between 80 and 90 ° and in the outdoor area about 20 °, so that there is a temperature gradient between the indoor and outdoor areas.

Within the door handle 1, a fluid circuit 3 is also provided here. Arranged schematically in the interior of the fluid circuit 3 are arrows as directional information of the fluid flow. In the sauna interior increases in fluid entry into the lower region of the door handle 1, the fluid temperature. The heated and warming fluid rises and pushes at the upper end of the inner side 7 of the door handle 1 out through the glass door 9 to the outside of the door handle 5. The outer side 5 of the door handle 1 is compared to the inner side 7 provided with an enlarged surface and extends over a greater length than the door handle on the inside 7. In the outdoor area, the fluid cools and releases the heat on the outside 5 of the door handle 1 to the environment. In this case, the fluid is first passed through a fluid guide element 21, for example in the form of an upward aperture, upwards in the enlarged compared to the inside in the manner of a blind hole surface of the door handle 1 and then flows on the other outer side of the Aperture 21 back down. The cooling fluid sinks down as described above. The circulating fluid absorbs the heat and cools the grip area of the door handle 1.

The insert or the insert element 17 is arranged or inserted within the fluid circuit. In this case, the insert element 17 is on the warmer Side of the door handle, that is provided on the side of the interior with increased temperature. At its lower end, the insert element 17 tapers in its diameter downwards in a wedge shape. Alternative geometric configurations and / or a constant diameter are possible. Thus, the insert member 17 reduces the amount of flowing heated fluid flowing past and urges the fluid into the gap between the inner diameter of the door handle and insert member. As the fluid passes to the colder exterior, the reduced amount of fluid cools faster.

In the door handle 1 mehrer spacer elements are provided, which keep the insert member 17 within the fluid circuit from the inner diameter of the door handle 1 spaced. As spacers 19, for example, wire pins, wire spring pins or other suitable fastening means 19 are provided. The use of a plurality of wire spring pins 19 has the advantage that the insert element 17 is securely held in a defined position. This ensures a uniform fluid flow. In addition, termination elements 13 are provided. These blind the door handle against the door and can also exercise a sealing function and the area of the door handle 1, which penetrates through the door 9 to seal.

In the embodiment according to Fig. 7a, b the heat exchange with the environment improves and the flow rate of the fluid through the insert element 17 decreases.

Further embodiments and variations of the present invention will become apparent to those skilled in the art within the scope of the following claims.

reference numeral

1 door handle 3 Fluid circuit 5 outside 7 inside 9 fastener 11 Fluid-passing member 13 termination element 15 Through opening 17 insert element 19 Spacing jig 21 Fluid bypass member

Claims (12)

Door handle (1), in particular for a wellness device, wherein the door handle (1) comprises a fluid circuit (3) for controlling the temperature of the door handle (1). Door handle (1) according to claim 1, wherein the door handle (1) is designed for mounting on a fastening element (9) and extends in the assembled state on both sides of a fastening element (9). Door handle (1) according to claim 2, wherein the door handle (1) on one side of the fastening element (9) has an enlarged compared to the other side surface. Door handle (1) according to one of the preceding claims, wherein the door handle (1) comprises at least one fluid passage opening (15) acting as a fluid inlet or fluid outlet. Door handle (1) according to one of the preceding claims, wherein in the door handle (1) at least in and / or adjacent to the fastening element (9), a fluid passage element (11) is arranged fluid-tight in the fluid circuit and formed. Door handle (1) according to one of the preceding claims, wherein a closing element (13) is arranged around the door handle (1) on the fastening element (9). Door handle (1) according to one of the preceding claims, which (1) is integrally formed. Door handle (1) according to one of claims 1 to 6, which (1) is at least in two parts. Door handle (1) according to one of the preceding claims, in which an insert element (17) for reducing the diameter of the fluid circuit (3) is provided inside the fluid circuit (3). Door handle (1) according to claim 9, wherein at least one spacer element (19) is provided which spaces the insert element (17) within the fluid circuit (3) from the inner diameter of the door handle (1). Door (9) with a door handle (1) according to one of the preceding claims. Use of a fluid circuit (3) for temperature control of a door handle (1).

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