DE102011001093A1 - Door fitting for door assembly in public buildings, hospitals, hotels, public toilets or in buildings of industrial facilities, has light emitting diode-semiconductor radiation sources arranged at distance to rod door handle - Google Patents

Abstract

The door fitting (10) has a rod door handle (11) for manual operation of the door leaf. The light emitting diode-semiconductor radiation sources (13) are arranged at a distance to the rod door handle for emission of ultraviolet-radiation. The light emitting diode-semiconductor radiation sources irradiate the rod door handle in order to obtain a bactericide effect on the outer surface of the rod door handle. An independent claim is also included for a door assembly with a sensor.

Description

The present invention relates to a door fitting with a rod door handle for the manual operation of a door leaf and a door assembly for this purpose.

Door fittings of the present type are often used for door arrangements that are frequented by a large number of people, for example in public buildings, hospitals, hotels, door arrangements of public toilets or in commercial buildings. The bar door handle is received to provide a manually gripping handle body between two opposite ends usually opposite and can be made straight or curved and preferably extends in the vertical.

In recent years, specific infection problems have increased which can be transmitted through contact with manually operable elements. The manually operable elements may, for example, be formed by rod door handles of door sets, and if such a bar door handle is operated daily by a large number of persons, the specific problem of infection can occur more frequently. However, the risk of infection can be reduced if materials are used which have a bactericidal effect.

STATE OF THE ART

From the DE 103 05 142 A1 is a manually operable element of a door fitting in the form of a door handle with a surface known which has a germicidal effect. The surfaces are treated with substances that have a bactericidal effect. However, these substances have the disadvantage that they are either more or less toxic, or the germicidal effect is too low. With regular use of the door handle, abrasion of the substances is observed so that the germicidal effect does not last long. It is also proposed to envelop the door handle with a metal body on which the germicidal substances are applied and which can be replaced after abrasion of the germicidal substances. However, this has a considerable maintenance effort and can not be implemented meaningfully for rod door handles.

From the sterilization of air, surfaces and water is known that the use of ultraviolet radiation for efficient and environmentally friendly control of bacteria, viruses and other microorganisms is suitable. The high-energy ultraviolet radiation limes harmful germs in fractions of a second. The treatment of surfaces with UV radiation sources, also known as physical disinfection, can replace the use of chemical agents, with the further advantage that no resistance to the radiation can develop.

It is therefore the object of the present invention to provide a door fitting specified in the preamble of claim 1 with a means for disinfecting, to equip them in particular with a UV radiation source.

This object is achieved on the basis of a door fitting according to the preamble of claim 1 in conjunction with the characterizing features. Advantageous developments of the invention are specified in the dependent claims.

DISCLOSURE OF THE INVENTION

The invention includes the technical teaching that, spaced from the bar door handle, LED semiconductor radiation sources are arranged to emit UV radiation and irradiate the bar door handle to provide a bactericidal effect on the outer surface of the bar door handle.

The invention makes use of the advantageous possibility of implementing LED semiconductor radiation sources at a distance from the rod door handle, but arranged close to it, as part of the door fitting. LED semiconductor radiation sources are small in size, and a plurality of individual LED semiconductor radiation sources can be disposed about the length of the pole door handle approximately evenly distributed on the door assembly. The particular advantage of the arrangement according to the invention lies in the use of semiconductor radiation sources for the emission of UV radiation in LED construction. The advantage of using LED semiconductor radiation sources for emitting UV radiation lies in particular in the low power consumption and in the low heat development during operation of the LED semiconductor radiation sources, which can be made significantly more robust compared to UV flash lamps. Furthermore, there are no toxic substances as in the disposal of the UV flash lamps, and the life of UV LEDs as semiconductor radiation sources exceeds the life of flash lamps for generating UV radiation considerably. Furthermore, LED semiconductor radiation sources can be more easily integrated into the door fitting.

The ultraviolet radiation according to the present invention can emit electromagnetic radiation having a wavelength of 50 nm to 400 nm, preferably 100 nm to 300 nm, and more preferably 100 nm to 280 nm.

As an advantageous embodiment for the arrangement of the LED semiconductor radiation sources, these can be arranged directly or indirectly on the door leaf. The pole door handle is arranged over its length with a constant distance in front of the door, and the LED semiconductor radiation sources can be arranged directly on the door, for example, if they are embedded in the door leaf. If further means are provided with which the LED semiconductor radiation sources are arranged on the door leaf, then the LED semiconductor radiation sources can also be arranged indirectly on the door leaf. Consequently, the LED semiconductor radiation sources may be located behind the pole door handle on the door leaf and irradiate the pole door handle from the direction of the door leaf.

Advantageously, the door fitting may have a base body, wherein the LED semiconductor radiation sources may be arranged on or in the base body. By using a base body for the arrangement of the LED semiconductor radiation sources results in an indirect arrangement of the LED semiconductor radiation sources on the door leaf.

Preferably, the pole door handle extends along a straight line along a straight line, the LED semiconductor radiation sources preferably being arranged in an array arrangement with an extension direction spaced from the pole door handle aligned along the handle axis. The LED semiconductor radiation sources can be accommodated in a receiving body, and the receiving body can be inserted into the front side of the main body, which points in the direction of the rod door handle. The length of the array of LED semiconductor radiation sources and thus the length of the receiving body may correspond approximately to the length of the rod door handle on which the rod door handle can be grasped manually. If the LED semiconductor radiation sources received in the receiving body, this can be handled individually and introduced into the body. If the receiving body is received in the base body, this can conclude with the surface of the door leaf when the main body is embedded in the door leaf. Alternatively, the main body can also extend between the door leaf and the bar door handle or the receiving body can also be recessed without the main body in a pocket-like depression on the door leaf.

With further advantage, means for operating the LED semiconductor radiation sources can be accommodated in the main body. The means for operating the LED semiconductor radiation sources may comprise at least one power supply for powering the LED semiconductor radiation sources and a controller which may serve to control the operation of the LED semiconductor radiation sources. The LED semiconductor radiation sources can represent point radiation sources, and be cast in the manner of a light-emitting diode in a diode housing. Alternatively, individual LED semiconductor emitter sources can be applied to an emitter carrier, which in turn can be arranged on the receiving body. To further improve the radiation exposure of the rod door handle optical elements can be provided, which are arranged in the beam path between the LED semiconductor radiation sources and the rod door handle. For example, bundling of the UV radiation can take place so that a line focus is achieved, and the line focus has approximately the length of the encompassable region of the rod door handle. With this line focus the bar door handle can be irradiated on the side facing the door leaf.

The rod door handle can be rotatable about a handle axis which corresponds to the main axis of engagement of the handle body. In particular, the rod door handle can be received and rotatable between two end pieces, and when the LED semiconductor radiation sources irradiate the rod door handle from the direction of the door leaf or from the direction of the main body, the rod door handle is rotated about the handle axis, so that a full radiation exposure of the rod door handle is given.

In order to rotate the rod door handle around the handle axis, an electric drive unit can be provided, which is arranged in particular in or on at least one of the end pieces. The rotational speed of the rod door handle can be chosen to be very low, and the electric drive unit can be connected to the controller for operating the LED semiconductor radiation sources. The electric drive unit can, for example, set the rod door handle in rotary motion when the LED semiconductor radiation sources are put into operation. In addition, the LED semiconductor radiation sources can preferably only be put into operation when the electric drive unit sets the rod door handle in rotary motion.

The object of the present invention is further achieved by a door assembly having a door leaf and a door fitting with a rod door handle for manual operation of the door leaf, and it is provided that spaced apart from the rod door handle LED semiconductor radiation sources for emitting UV radiation are arranged and irradiate the rod door handle to have a bactericidal effect on the outside surface.

The door assembly may include a sensor configured to detect persons and electrically connected to the controller. The control can be this way be formed such that upon detection of a person by the sensor, the power of the UV radiation emitted by the LED semiconductor radiation sources is at least reduced, or the UV radiation is completely switched off. This avoids that a person is exposed to the UV radiation when the person has approached close to the door assembly. However, the sensor may also be developed in such a way that, in conjunction with the controller, it then switches on the LED semiconductor radiation sources for a short time when a person is approaching who approaches the door arrangement in order to effect a disinfection. If, however, the person falls below a minimum distance to the door arrangement, the LED semiconductor radiation sources switch off again. If the LED semiconductor radiation sources are in operation, at the same time the electric drive can cause a rotation of the rod door handle, and if the LED semiconductor radiation sources are switched off, the rotation of the rod door handle can also be omitted. This also has the advantage that the rod door handle does not rotate around the handle axis when a person manually grasps the rod handle. Overall, it is achieved that at least for a short time by the UV radiation, a disinfecting effect is achieved and it is known that after only a few fractions of a second, a disinfecting effect can be achieved.

In addition, an input means may be provided and in particular be arranged on the door set, by means of which a person can initiate a radiation exposure of the rod door handle by the LED semiconductor radiation sources. The input means may be, for example, a non-contact sensor that can be operated by a person, and both the LED semiconductor radiation sources and the electric drive for rotating the pole door handle may be on for a necessary period of time, such as a full turn of the pole door handle around the handle axis.

PREFERRED EMBODIMENT

Further, measures improving the invention will be described in more detail below together with the description of a preferred embodiment of the invention with reference to FIGS. It shows:

1 a view of a door assembly with a door set comprising a rod door handle,

2 a detailed view of a door fitting with a rod door handle and the features of the present invention and

3 a door set according to 2 in a flying view.

1 shows a door set 10 in arrangement on a door leaf 12 standing in closed position on a doorframe 23 located. To the door 12 to use, is the door set 10 with a rod door handle 11 trained, and the rod door handle 11 is exemplary in vertical extension and spaced from the surface of the door leaf 12 arranged at this.

Between the rod door handle 11 and the surface of the door leaf 12 there is a basic body 14 , and the bar door handle 11 is at the body 14 attached, the main body 14 again holding the door 12 is mounted. The main body 14 is according to the extent of the rod door handle 11 also designed with an elongated extension and has a length which is approximately the length of the manually encompassable portion of the rod door handle 11 equivalent. On the front side of the main body 14 indicating the arrangement of the bar door handle 11 facing, there is a variety of LED semiconductor radiation sources 13 arranged on the base body 14 , Become the LED semiconductor radiation sources 13 For the emission of UV radiation put into operation, so the UV radiation towards the rod door handle 11 be aligned to irradiate this. By the irradiation of the bar door handle 11 by means of the LED semiconductor radiation sources 13 can have a bactericidal effect on the outer surface of the bar door handle 11 be achieved.

Also shown is a sensor 21 Standing at the top of the door frame 23 is arranged. The sensor 21 serves to detect persons who can approach the door arrangement. In order to avoid persons of UV radiation by operation of the LED semiconductor radiation sources 13 can be exposed, the sensor 21 electrically with the UV semiconductor radiation sources 13 be connected, and if through the sensor 21 When a person is detected near the door assembly, the power of the UV radiation emitted by the LED semiconductor radiation sources can be reduced 13 is emitted, at least reduced or switched off. Furthermore, by the sensor 21 at least one person is detected, and the LED semiconductor radiation sources 13 can be put into operation at least for a short time to disinfect the effect on the surface of the rod door handle 11 to achieve. If the person falls below a minimum distance to the door assembly, which also by the sensor 21 can be detected, then the power of the UV radiation through the LED semiconductor radiation sources 13 reduced or switched off. This allows the person a disinfected rod door handle 11 use, and a spread of infectious diseases through a bar door handle 11 The aforementioned type and application can be effectively prevented, the rod door handle and each other Shape and may be mounted, for example, in the horizontal to the door assembly.

Also shown is an input means 22 that can be operated by a person, and the input means 22 is an example above the door set 10 on the door 12 arranged. Does the person operate the input device 22 , which may be designed for example as a push-button or as a non-contact sensor switch, so the LED semiconductor radiation sources 13 be briefly put into operation to disinfect the effect of UV radiation on the rod door handle 11 to achieve at least a short time. As a result, a person can disinfect the rod door handle by pressing a button or sensor detection 11 make.

The 2 and 3 show in a perspective and in a flying view of the door fitting 10 , The door set 10 Can about brackets 24 on the door 12 be attached. The brackets 24 extend through a body 14 as well as the rod door handle 11 has an elongated extension, and the main body 14 is by means of the brackets 24 on the door 12 fixable. The rod door handle 11 , which may be formed of a stainless steel material, a plastic material, in particular of an acrylic material or a glass material, for example, is via end pieces 19 also on the brackets 24 attached. This extends the pole door handle 11 in a handle axis 15 at a constant distance above the main body 14 ,

On the front side of the main body 14 moving towards the bar door handle 11 indicates are multiple LED semiconductor radiation sources 13 arranged, and the LED semiconductor radiation sources 13 can emit UV radiation that causes radiation exposure of the rod door handle 11 allows. The LED semiconductor radiation sources 13 are arranged in a row, pointing towards the handle axis 15 extends. For receiving the LED semiconductor radiation sources 13 in the main body 14 is a receiving body 16 shown, and the receiving body 16 is in a recording recess 25 on the front of the main body 14 used. In the main body 14 can also have a power supply 17 and a controller 18 be arranged, which is used for power supply and for controlling the LED semiconductor radiation sources 13 serve. Furthermore, the controller 18 with the sensor 21 and the input means 22 be related to the performance of the LED semiconductor radiation sources 13 to control. The main body 14 can have a receiving space, and after arrangement of the power supply 17 and the controller 18 can be a back cover element 26 to the closure of the body 14 serve.

The rod door handle 11 is in the tails 19 rotatably arranged, so that this fully UV irradiation by means of only the rear side in the body 14 arranged LED semiconductor radiation sources 13 around the handle axis 15 be set in rotation. For this purpose is a drive unit 20 provided, the example of an end piece 19 attached and by means of a coupling 27 with the bar door handle 11 can be associated. The rotation of the bar door handle 11 may depend on the operating situation of the LED semiconductor radiation sources 13 be made dependent, and the drive unit 20 can then be turned on, although the LED semiconductor radiation sources 13 are turned on. Furthermore, the rotational speed of the rod door handle 11 through the drive unit 20 can be changed, and for example, at a full radiation power of the LED semiconductor radiation sources 13 a large rotational speed can be selected and with a reduced UV radiation power through the LED semiconductor radiation sources 13 can the rotational speed of the rod door handle 11 also be reduced. Thus, the surface energy of the radiation exposure of the surface of the rod door handle 11 kept constant.

The invention is not limited in its execution to the above-mentioned preferred embodiment. Rather, a number of variants is conceivable, which makes use of the illustrated solution even with fundamentally different types of use. All of the claims, the description or the drawings resulting features and / or advantages, including design details or spatial arrangements may be essential to the invention both in itself and in a variety of combinations. In particular, the main body 14 in a corresponding recess in the door leaf 12 be taken in or the LED semiconductor radiation sources 13 are either individually or in arrangement in the receiving body 16 in the door 12 brought in. It can also both the power supply 17 as well as the controller 18 in the door 12 be executed integrated.

LIST OF REFERENCE NUMBERS

10

door fittings

11

Bar door handle

12

door

13

LED semiconductor radiation source

14

body

15

handle axis

16

receiving body

17

power adapter

18

control

19

tail

20

drive unit

21

sensor

22

input means

23

doorframe

24

bracket

25

receiving recess

26

cover element

27

clutch

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been 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.

Cited patent literature

• DE 10305142 A1 [0004]

Claims (14)

Door set ( 10 ) with a rod door handle ( 11 ) for manual operation of a door leaf ( 12 ), characterized in that spaced from the rod door handle ( 11 ) LED semiconductor radiation sources ( 13 ) are arranged for the emission of UV radiation and the rod door handle ( 11 ) on the outer surface of the bar door handle ( 11 ) to achieve a bactericidal effect. Door set ( 10 ) according to claim 1, characterized in that the LED semiconductor radiation sources ( 13 ) directly or indirectly on the door ( 12 ) are arranged. Door set ( 10 ) according to claim 1 or 2, characterized in that the door set ( 10 ) a basic body ( 14 ), wherein the LED semiconductor radiation sources ( 13 ) on the base body ( 14 ) are arranged. Door set ( 10 ) according to one of claims 1 to 3, characterized in that the rod door handle ( 11 ) along a handle axis ( 15 ), wherein the LED semiconductor radiation sources ( 13 ) in an array arrangement with an extension direction spaced from the rod door handle ( 11 ) are arranged along the handle axis ( 15 ) is aligned. Door set ( 10 ) according to one of the preceding claims, characterized in that a receiving body ( 16 ), in which the LED semiconductor radiation sources ( 13 ) are included. Door set ( 10 ) according to claim 5, characterized in that the receiving body ( 16 ) in the main body ( 14 ) is receivable, wherein the main body ( 14 ) between the door ( 12 ) and the rod door handle ( 11 ) or in the door ( 12 ) is admitted. Door set ( 10 ) according to one of the preceding claims, characterized in that in the basic body ( 14 ) Medium ( 17 . 18 ) for the operation of the LED semiconductor radiation sources ( 13 ) are included. Door set ( 10 ) according to claim 7, characterized in that the means ( 17 . 18 ) for the operation of the LED semiconductor radiation sources ( 13 ) at least one power supply ( 17 ) and at least one controller ( 18 ). Door set ( 10 ) according to one of the preceding claims, characterized in that the rod door handle ( 11 ) around the handle axis ( 15 ) is rotatable, in particular between two end pieces ( 19 ) is rotatably received, so that a full radiation exposure of the rod door handle ( 11 ) is possible. Door set ( 10 ) according to one of the preceding claims, characterized in that an electric drive unit ( 20 ) is provided, with the rod door handle ( 11 ) is rotatable, wherein the drive unit ( 20 ) in particular in or on at least one of the end pieces ( 19 ) is arranged. Door arrangement with a door leaf ( 12 ) and a door set ( 10 ) with a rod door handle ( 11 ) for manual operation of the door leaf ( 12 ), characterized in that spaced from the rod door handle ( 11 ) LED semiconductor radiation sources ( 13 ) are arranged for the emission of UV radiation and the rod door handle ( 11 ) to achieve a bactericidal effect on the outer surface. Door arrangement according to claim 11, characterized in that a sensor ( 21 ) is provided, which is designed for the detection of persons and with the controller ( 18 ) is electrically connected. Door arrangement according to claim 11 or 12, characterized in that the control ( 18 ) is designed such that upon detection of a person by the sensor ( 21 ) the power of the LED semiconductor radiation sources ( 13 ) emitted UV radiation is at least reduced. Door arrangement according to one of claims 11 to 13, characterized in that an input means ( 22 ) and in particular on the door set ( 10 ) is arranged, by means of which a person a radiation exposure of the rod door handle ( 11 ) by the LED semiconductor radiation sources ( 13 ) can trigger.

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