DE202020106758U1 - Door handle set or door handle - Google Patents

Abstract

Door handle set or door handle, essentially consisting of a door plate located on one or both sides on the surfaces of a door leaf, which are penetrated by a door pin with connections to the door plates opposite the above handle, characterized in that at least one device directly or indirectly with the door handles (4) is connected, which has a jet head (6) which has an opening (8) which is arranged directly or at a distance around the handle (3) of the door handle, a device being integrated in the jet head (6) that can emit UV radiation or UV-c radiation in the extension of the handle (3) on its surface.

Description

The invention relates to a door handle or a door handle set consisting essentially of door plates located on both sides of the surfaces of a door leaf, the door plates being penetrated by a door pin in order to thereby create a connection to handles protruding from the door plates. The handles are provided with additional devices.

Through the DE 20 2015 001 059 U1 a door handle has become known which consists at least on its surface of a transparent material, with at least one light source inside the door handle which generates radiation that can be used for disinfection and is thus directed from the inside onto the surface of the door handle touched by the user . Due to the design of such a door handle, unfortunately only transparent handle pieces can be implemented.

The object of the invention is to create a device for disinfecting the surface of door handles, which can be used and retrofitted equally to any embodiment and with all door handle materials.

The object of the invention is achieved by the features of a device according to claim 1. The subclaims that follow the main claim represent a further embodiment of the inventive concept.

All types of door handles are used by people in everyday life to open or close doors or gates. The surfaces of these door handles are touched by hands. This can lead to contamination or contamination with pathogens through contact.

It is known from the prior art that UV radiation is used to disinfect and kill viruses. For this purpose, UV or UV-c radiation sources based on light emitting diodes (LEDs), in particular up to a wavelength of essentially 300 nm, have proven to be very effective. Light-emitting diodes which can emit UV radiation consist, for example, of aluminum nitride or aluminum gallium nitride and are used as a direct UV radiation source without a fluorescent coating. Such radiation sources can be used very economically in the case of contaminated door handles that have been contaminated by contamination on the surface with microorganisms or harmful substances, because the contamination of the door handle takes place on the surface and not in the depth.

A device that can be used can, for example, consist in the fact that, after each use, the area of the door handle that is touched by people is automatically irradiated with its handle for a certain period of time, thereby reliably sterilizing it.

In a preferred embodiment, such a device can be exchangeably attached to each door handle of a door handle set, for example by means of a clamping device or a rubber adapter or a screw fastening. Such an adaptation can preferably be carried out via the handle shaft. For this purpose, the device is provided with a jet head which has an essentially round opening or an opening in order to have the possibility of pushing this jet head over the longitudinal extent of the handle of the door handle up to the vicinity of the shaft of the door handle. The round opening is so special because such a shape can be guided over any cross-sectional shape of the handle.

The effective design of the beam head contains an essentially ring-shaped arrangement of UV radiation sources, which can emit ultraviolet radiation in the invisible UV-c range with a beam formation in the extension of the handle, the wavelength of which is essentially between 170nm and 300nm and thus is in the invisible area. Such non-direct ultraviolet radiation is harmless to humans and animals, but is able to safely kill bacteria or viruses.

The shape of the jet head can have a round shape in a universal design. In order to be able to carry out a particularly effective irradiation of the handle, it is also possible to adapt at least the inner shape of the jet head essentially to the cross-sectional shape of the handle. For this purpose, the opening for the handle to pass through in the jet head can have different shapes, such as, for example, square or rectangular or oval or round. The light-emitting diodes (LED) are arranged around the opening. The number of light-emitting diodes depends on the surface of the handle cross-section to be sterilized, whereby it has been found to be particularly effective to use at least four light-emitting diodes.

In order to effectively transfer the radiation generated by the light-emitting diodes to the entire surface of the handle, in a preferred embodiment, at least be housed a reflector. Such a reflector can be designed in such a way that the radiation generated by the light-emitting diodes also sweeps the entire surface of the handle.

In a further preferred embodiment, it is possible to use one or more optics with converging lenses at the exit of the beam head in order to thereby safely and completely irradiate the entire surface of the handle. It is of course also possible to use reflectors and optics on or in the beam head at the same time.

The essentially ring-shaped design of the UV radiation sources are supplied with electrical energy by an electronic circuit. The power supply for the UV radiation source and the electronic circuit are part of the device. In a preferred embodiment, it has been found to be very effective if the electronic circuit and the power supply are located in a part of the device that has been designed to be separable from the beam head. As a result, the assembly on the door handle shaft can be carried out much more easily and the power supply can also be replaced more easily. Such a power supply can be ensured by batteries or accumulators. While the batteries can be exchanged when required, for example when a display indicates that electrical energy is only available for a limited period of time, an accumulator can of course also be exchanged and then charged, but it is also possible to connect the accumulator in the installed state via wireless Power Transfer (WPT) transferring electrical energy inductively without contact. The energy transfer takes place through electromagnetic fields. A transponder system can also be used for reloading.

The housing design of the device can be made in one piece or in several pieces. In this case, for example, the power supply can also be interchangeably connected by means of a plug connection.

In order to keep the power consumption of the device as low as possible, in a preferred embodiment the UV radiation source is only activated when a human person has pressed the door handle down using the handle to open a door. A timing element within the device only starts after an adjustable time lapse, i. H. after letting go of the hand, the disinfection of the handle via the jet head is automatically activated.

Another possibility to reduce power consumption can be through a pulsed emission of UV radiation.

Another indication that a hand may have come into contact with the handle can be detected, for example, by an inclination sensor in the device, namely when the handle of the door handle has been depressed by a certain angle. The jet head is then activated to disinfect the handle.

Furthermore, in a preferred embodiment, a suitable sensor system can be contained in the device, which automatically switches off the radiation source when human body parts are still in a phase of contact with the handle.

In addition to the described embodiment of a door handle set, which is equipped with a door handle on both sides of a door leaf, it is of course also possible within the meaning of the invention for a door handle with a handle to be arranged on only one side of the door leaf.

• 1 eine erste bevorzugte Ausführungsform der Vorrichtung, die auf den Türdrückerschaft aufgesteckt werden kann;
• 2 eine weitere bevorzugte Ausführungsform der Vorrichtung, die über dem Türdrückerschaft befestigt worden ist;
• 3 eine weitere bevorzugte Ausführungsform der Vorrichtung, die über dem Türdrückerschaft angebracht worden ist;
• 4 eine Ausführungsform der Vorrichtung mit einer bevorzugten Ausgestaltung des Strahlkopfes;
• 5 eine bevorzugte Ausführungsform eines modifizierten Strahlkopfes mit Vorrichtung;
• 6 eine schematische Darstellung einer Strahlenausbreitung über eine Handhabe.

The invention is explained in more detail using possible, schematically illustrated exemplary embodiments.

• 1 a first preferred embodiment of the device that can be plugged onto the door handle shaft;
• 2 a further preferred embodiment of the device which has been attached over the door handle shaft;
• 3 a further preferred embodiment of the device which has been attached over the door handle shaft;
• 4th an embodiment of the device with a preferred configuration of the jet head;
• 5 a preferred embodiment of a modified jet head with device;
• 6th a schematic representation of radiation propagation through a handle.

The preferred embodiment according to 1 shows an apparatus 4th that through a connection 5 with a jet head 6th is coupled. Here is the device 4th to a door handle 7th Interchangeably adapted, a fixed installation is of course also possible. The door handle 7th lies in front of a door sign 2 , the part of a door handle version 1 is. In continuation of the door handle body 7th a handle is attached to it 3 at. Such a handle 3 is pressed down by a human hand to open a door leaf, not shown, and released again after the door leaf has been opened. With the touch of the handle 3 The human hand can handle bacteria or viruses or other germs and pathogens 3 be transmitted. In order to avoid the spread of such harmful substances, the handle 3 with the jet head 6th fitted that has a breakthrough 8th has so as to have a distance around the cross-section of the handle 3 to lay. Through the round breakthrough 8th it is possible that the cross-sectional shape of the handle 3 can be carried out at will.

With the 3 becomes a further preferred embodiment of the device 4th shown. In this embodiment, the device 4th essentially from the jet head 6th and a rear part. The jet head 6th can easily be done using the handle on existing door handles 3 be pushed, and then the jet head 6th operatively connected to the rear part placed on the side of the trigger neck.

The jet head 6th is designed with a device for emitting UV or UV-c radiation. The germicidal radiation is focused in the extension of the handle 3 executed, this means that the sterilizing radiation on the entire surface of the handle 3 is directed and it thus quasi to an enclosure of the handle 3 through the beam paths of radiation sources 10 , such as light emitting diodes, comes. How such an envelope can look is shown schematically in FIG 6th again. In this example, the handle is essentially round 3 four radiation sources 10 arranged. The ones from the radiation sources 10 In this exemplary embodiment, emitted UV or UVS rays are also passed through converging lenses 13th bundled and are called cones of rays 14th shown. An overlap of the individual beam cones 14th at their edge areas should be mandatory, so that a complete covering of the handle 3 is secured.

The 4th gives the entire device 4th again in a perspective view. The jet head 6th has a round opening 8th on that by a carrier 11 is enclosed. From the breakthrough 8th are repellent on the carrier 11 Beam sources 10 arranged in such a way that the emitted UVS radiation hits one or more of the radiation sources 10 meet surrounding reflectors. The reflectors ensure precise focusing of the beam cone 14th achieved to cover the entire surface of the handle.

The execution of the breakthrough 8th can be round, square, rectangular or oval to the cross-section of the handle 3 adjusted so as to the beam sources 10 as close as possible to the handle 3 to place around. It goes without saying that the number of beam sources used 10 according to the size of the cross section of the handle 3 directs.

To further align the cone of rays 14th It is also possible to achieve an optic 12th to use. This look 12th can also be used with individual converging lenses 13th for aligning the beam cone 14th be provided. In such a case it is advisable to use the beam sources 10 equal to the extent of the handle 3 on or on the carrier 11 to arrange. Depending on the shape of the handle 3 can also in addition to the optics 12th additionally reflectors 9 can be used.

In the device 4th an electronic circuit is housed that controls the connection 5 or an internal connection (not shown) provides the electrical energy for the jet head 6th with a device for generating the germicidal radiation by the radiation sources 10 provides. In the device 4th a power supply, not shown, in the form of batteries or accumulators is included. A display that shows the remaining energy of the power supply can also be provided for safe operation.

Preferably in the jet head 6th an inclination sensor and / or a presence sensor can be integrated for safe operation. This ensures that sterilization, ie activation of the device with the jet head, is always carried out immediately after the presence of a hand.

The 2 shows a combination of the above-described embodiment of a disinfection device for the handle 3 a door handle version in which the jet head 6th Part of the device 4th can be.

List of reference symbols

1

Lever handle design

2

Door sign

3

Handle

4th

contraption

5

connection

6th

Jet head

7th

Door handle

8th

breakthrough

9

reflector

10

Beam source

11

carrier

12th

optics

13th

Converging lenses

14th

Jet cone

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• DE 202015001059 U1 [0002]

Claims (14)

Door handle set or door handle, essentially consisting of a door plate located on one or both sides on the surfaces of a door leaf, which are penetrated by a door pin with connections to the door plates opposite the above handle, characterized in that at least one device directly or indirectly with the door handles (4) is connected, which has a jet head (6) which has an opening (8) which is arranged directly or at a distance around the handle (3) of the door handle, a device being integrated in the jet head (6) that can emit UV radiation or UV-c radiation in the extension of the handle (3) on its surface. Device according to Claim 1 , characterized in that the device (4) can be separated from the jet head (6) and can be interchangeably mounted on existing door handles. Device according to the Claims 1 and 2 , characterized in that the position of the jet head (6) ends essentially in front of the door handle shaft (7) and the device (4) above the jet head (6) is connected to this, and its essentially C-shaped or J-shaped design rests on the door handle shaft (7) in areas. Device according to one or more of the preceding claims, characterized in that the beam head (6) has at least one reflector (9) for bundling the beam cones (14). Device according to one or more of the preceding claims, characterized in that the beam sources (10) are mounted on a carrier (11), the carrier (11) being formed around the opening (8). Device according to one or more of the preceding claims, characterized in that the jet head (6) is provided with optics (12) for aligning the jet cone (14) up to the end of the handle (3). Device according to Claim 6 , characterized in that the optics (12) are provided with individual converging lenses (13). Device according to one or more of the preceding claims, characterized in that the opening (8) essentially corresponds in its cross section to the cross section of the handle (3). Device according to one or more of the preceding claims, characterized in that the beam sources (10) are contained in a minimum number of four beam sources (10) in the beam head (6). Device according to one or more of the preceding claims, characterized in that the beam sources (10) are designed as light-emitting diodes (LED), the emitted radiation having a wavelength of up to 300 nm. Device according to one or more of the preceding claims, characterized in that the radiation sources (10) for generating the UV radiation or the UV-c radiation are supplied by a power supply integrated in the device (4). Device according to one or more of the preceding claims, characterized in that the exchangeable power supply consists of batteries or accumulators. Device according to one or more of the preceding claims, characterized in that the device (4) or the jet head (6) contains a position sensor and / or a presence sensor. Device according to one or more of the preceding claims, characterized in that the device (4) or parts of the device (4) can be connected to the door leaf surface or to the door plates (2) or to the door handle shaft (7) by a force fit and / or form fit is / are.

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