DE202021100546U1 - Door handle with actuating element for disinfecting a grip surface of the door handle as well as the door handle and door - Google Patents

Abstract

Door handle, in particular for interior and / or exterior doors in public facilities and / or companies, with an actuating element (12) for disinfecting a grip surface (14) of the door handle (10), the actuating element (12) being at least partially arranged in the door handle (10) which in a non-actuated first position delimits a cavity (16) inside the door handle (10), the door handle (10) being penetrated by a channel (24) which opens into the cavity (16) at one end and connecting means at the other (26) for connection to a container (28) in order to conduct a liquid, in particular a disinfectant, from the container (28) into the cavity (16) via the channel (24) and the connecting means (26), and wherein the actuating element (12) is manually displaceable against at least one restoring means (30), characterized in that the cavity (16) has at least one sealing element (18) between a first sealing surface (20) of the actuating element nts (12) and a second sealing surface (22) of the door handle (10) is sealed, wherein a recess (32) is formed in at least one of the sealing surfaces (20, 22) in order to reduce the volume of the cavity (16) in relation to the First position reducing the second position of the actuating element (12) to release the sealing element (18) from at least one sealing surface (20, 22), wherein a blocking section (44) of the first sealing surface (20) is at a transition between the cavity (16) and the channel (24) is arranged and aligned so that the locking section (44) of the actuating element (12) clears the channel (24) when the actuating element (12) is transferred from the first to the second position at least partially closes or blocks, the actuating element (12) displacing the liquid from the cavity (16) in the direction of the gripping surface (14) and in a third position of the which further reduces the volume of the cavity (16) compared to the second position Actuating element (12) the sealing element (18) rests on both sealing surfaces (20, 22) in order to completely close the channel (24) and / or the cavity (16).

Description

The present invention relates to a door handle according to the preamble of claim 1, a door handle with a door handle according to claim 11, a pull handle according to claim 15 and a door with a door handle according to claim 13 and / or with a pull handle according to claim 17.

Generic door handles consist of a door handle, a door pin and a mounting element to attach the door pin to a door leaf. A torsion spring can be located in the mounting element as a return element of the door handle in order to move the door handle back into a usually horizontal starting position after a manual operation, twisting or pressing down of the door handle and opening of a door lock.

As an alternative or in addition to the door handle, the door handle can be designed as a pull handle and can be fixedly, in particular non-rotatable, mounted on the door leaf, the door usually being operable in the open state of a door lock by means of the pull handle and having a return means in a door hinge to prevent the Closes the door automatically after being actuated. As a result, the door can preferably be opened in particular by a simple pushing movement on the pull handle. This pull handle is often mounted on the door leaf as a type of bow handle.

In particular with interior and / or exterior doors in public facilities, such as schools and hospitals, and / or companies in which doors are manually operated by a large number of different operators, there is a risk of potential harmful pathogens or germs being transmitted through contact with the door handle . In these facilities in particular, regular disinfection of the door handle and simultaneous disinfection of the operator's palm are required.

From the US 2014/338153 A1 a device for disinfecting a manually operated door handle is known which has a container for a liquid disinfectant. The door handle is formed with a disinfectant-storing element in the form of a cover or sleeve which is pushed onto the outer surface of the handle. The element storing disinfectant consists of a sponge-like material which has the property of temporarily storing a disinfectant and releasing it when an external pressure force is applied. As soon as an operator exerts pressure on the element storing the disinfectant, disinfectant is released through the pores of the element and its outer surface is wetted, thereby disinfecting both the gripping surface and the operator's hand that touches the handle.

The DE 10 2012 017 365 A1 also discloses a device for disinfecting a door handle upon actuation of the door handle. The inside of the door handle of the doorknob has a cavity that is filled with disinfectant. The cavity is connected to a covering made of foam or sponge-like material through bores. If a pressure force is exerted on the foam by the fingers of one hand, it is compressed and the disinfectant is pressed out of the foam and comes into contact with the entire hand.

The GB 2,436,284 A shows a door handle which, in contrast to a door handle, is firmly mounted as a push handle on a door leaf. The door handle has a foam-like element which fills a cavity within the door handle and partially forms the surface of the door handle. A disinfectant container is integrated above the cavity in the pull handle and the pull handle is mounted on the door leaf in such a way that the disinfectant flows automatically from the container into the foam-like element. By operating and grasping the door handle, the foam is compressed and the disinfectant is released into the hand of an operator.

Sponge-like materials or foams usually have an irregular surface with a large number of open pores. Such surfaces or materials, however, are only suitable for hygienic use to a limited extent, since impurities and germs stick to the pores very easily. In particular, cleaning the surface down to the pores is time-consuming, so that the entire foam may have to be regularly dismantled and replaced. Furthermore, the amount of disinfectant dispensed is difficult to adjust and an unevenly distributed pressure force on the gripping surface promotes an uneven and, in some places, increased disinfectant discharge. This promotes the formation of drops, which can undesirably collect liquid on the floor below the door handle. Furthermore, the disinfectant container must be refilled at short and irregular intervals.

The EP 3 118 395 B1 describes a cover element or a type of hose with opening gaps which can be arranged on a door handle provided, the cover element also being connected to a container for disinfectant. As soon as an operator exerts a pressure force on the cover element, in particular while operating a door handle by means of the door handle, the opening gaps acting as a valve are opened and the disinfectant flows under the influence of gravity from a container into a handle area of the door handle.

Furthermore, the DE 20 2004 006 845 U1 a door handle with a cavity for conducting a disinfectant, wherein the door handle is made of a plastic and has flaps as actuating elements that can be pressed together by means of a pressure force of an operator, so that the disinfectant flows inside the door handle under the influence of gravity into the grip surface.

The actuating elements just mentioned, which act as valves, allow disinfectant to flow into the area of the handle surface of a door handle, but the inflow of further disinfectant is not stopped while the door handle is being operated. The release of disinfectant depends on the time of operation. This results in an irregular and possibly excessive consumption of disinfectant with undesired drop formation and increased consumption without added value with regard to the disinfectant effect. Here, too, a pore-like grip surface or a grip surface with various depressions is susceptible to contamination and has a surface that is difficult to clean. In particular, if a sponge-like material is also arranged inside the door handle, contamination can only be cleaned with difficulty or the material can be replaced regularly.

The present invention is based on the object of proposing a door handle which, while avoiding the problems known from the prior art when operating the door handle, disinfects the grip surface of the door handle and possibly also the hand of a user or operator.

This object is achieved with a door handle with the features of independent claim 1, with a door handle according to claim 11 and a door according to claim 13.

Advantageous designs are the subject of the subclaims.

According to the invention, a door handle, in particular for interior and / or exterior doors in public facilities and / or companies, with an actuating element for disinfecting a grip surface of the door handle is proposed, the actuating element being at least partially arranged in the door handle and, in a non-actuated first position, a cavity in the Inside the door handle limited, wherein the door handle is penetrated by a channel which opens into the cavity at one end and at the other end has connecting means for connection to a container in order to transfer a liquid, in particular a disinfectant, from the container into the cavity via the channel and the connecting means to conduct, and wherein the actuating element is manually displaceable against at least one return means. The cavity is sealed with at least one sealing element between a first sealing surface of the actuating element and a second sealing surface of the door handle, a recess being formed in at least one of the sealing surfaces in order to enable the actuating element in a second position of the actuating element that reduces the volume of the cavity compared to the first position To release the sealing element from at least one sealing surface and to displace the liquid from the cavity in the direction of the grip surface, wherein a blocking section of the first sealing surface is arranged and aligned at a transition between the cavity and the channel that the blocking section of the actuating element at the channel the transfer of the actuating element from the first to the second position at least partially closes or blocks and wherein in a third position of the actuating element which further reduces the volume of the cavity compared to the second position, the sealing element is at iden sealing surfaces rests in order to completely close the channel and / or the cavity.

In this case, the invention has surprisingly recognized that, due to the design of the door handle according to the invention, a defined amount of disinfectant flows into the handle surface after the actuating element has been operated. The actuating element acts at the same time as a valve for opening and closing the channel and the inflow of disinfectant and as a type of displacement pump to convey the liquid from the cavity into the gripping surface. The actuating element therefore does not need gravity in order to convey a liquid from the cavity into the gripping surface. Gravity is preferably only required for refilling the cavity after an actuation process, in particular if the actuation element is in the first position or returns to the first position after an actuation or adjustment. With this embodiment, a defined volume of liquid is pumped out of the cavity into or onto the gripping surface and, for example, a drop of excessive liquid on the floor can be prevented. The door handle with the actuating element thus has a type of leakage protection when the door handle or the actuating element is continuously actuated. The defined delivery of liquid can further reduce the frequency of refilling the container or a smaller container can be used. Overall, an efficient use of the liquid is made possible.

Furthermore, the preferably two-part door handle with an actuating element can be easily assembled and manufactured. For example, no further valve elements with wire pulls or sponge-like foams or other complex adjusting mechanisms have to be installed, which not only make the production more complex, but are especially difficult to clean and can promote the adherence of germs. In addition, the grip surface does not have a large number of pores or depressions and thus creates an environment that is unfavorable for germ growth and is particularly easy to clean.

According to a preferred embodiment, the actuating element is at least partially arranged in the door handle in such a way that, when the door handle is mounted on a door leaf, an adjusting movement of the actuating element in the direction of gravity that reduces the volume of the cavity can be carried out. In this case, the door handle is preferably oriented horizontally and perpendicular to the direction of gravity. This ensures that when the door handle is operated and pressed into a second position, the actuating element is simultaneously adjusted and the liquid is evenly displaced from the cavity by the actuating element and is evenly distributed on the grip surface. The liquid is preferably displaced evenly along the entire circumference of the actuating element between the sealing surfaces of the actuating element and the door handle.

Alternatively, the door handle can also be arranged in a different orientation on the door leaf. Then it would also be possible to adjust the actuating element by one hand of the operator grasping the door handle on both sides in the area of the actuating element and the side of the door handle opposite the actuating element and pressing the hand together.

In a further preferred embodiment, the container is connected to an outlet side or an outlet section on the door handle in a liquid-tight manner in the direction of gravity, preferably screwed or glued or welded to the door handle for safety reasons, preferably by means of laser welding. This preferred arrangement of the container in the direction of gravity ensures that liquid can flow into the channel and the cavity by means of gravity. The container is preferably arranged on the door handle itself and on an area of the door handle facing the door pin. As already described, the function of the door handle and the actuating element is designed so that while the actuating element is actuated, only a volume of liquid approximately equal to the volume of the cavity reaches the handle surface, preventing further liquid from flowing out of the container. This results in a particularly economical use of disinfectant and relatively small containers, preferably smaller than 100ml to 150ml, can be used. Such a small container is suitable for up to 100 to 150 actuation cycles and rarely needs to be topped up.

More preferably, the sealing element is an elastic O-ring which is fitted in a groove in one of the sealing surfaces of the actuating element or the door handle, the recess and the groove being formed in each of the sealing surfaces of the actuating element or the door handle. In particular, in the second position of the actuating element, the recess is opposite the groove, so that the distance between the sealing surfaces increases compared to the first position of the actuating element and the O-ring is detached from at least one of the sealing surfaces and disinfectant liquid is displaced from the cavity into the grip area.

The O-ring is particularly preferably a solvent-resistant O-ring, for example made of nitrile or fluorocarbon rubber.

In the first position of the actuating element it is preferably provided that an adhesive force between the sealing element and the sealing surfaces is greater than the force of the restoring means in order to achieve a clamping fastening of the actuating element in the door handle. So there is at least just an equilibrium between the force of the restoring means and the adhesive force of the sealing element on the sealing surfaces. During assembly or disassembly, only the adhesive force of the sealing element has to be overcome in order to fit the actuating element into the cavity of the door handle or to detach it from the door handle. For assembly, the actuating element can preferably be pushed into the door handle by hand and pressed into the first position. For dismantling, an overpressure can be generated via the channel, for example with compressed air, in order to detach the sealing element from the sealing surfaces. Instead of the compressed air, a tool can also be used to clamp the actuating element in the area of the gripping surface of the actuating element and pull it out of the door handle. The adhesive force is preferably selected so or so large that the above-described self-adhesion is maintained over a large number of actuation cycles even if the sealing element experiences slight wear.

Alternatively, the actuating element can also be fastened with a fastening pin or another geometric stop in the first position against the force of the restoring element, but then the number of parts of the door handle is increased and the Assembly or dismantling and production are unnecessarily complex. Furthermore, residues can collect in the areas of the fastening pin or the geometric stop, so that cleaning or the hygienic properties of the door handle are impaired.

Two springs, in particular helical springs, are preferably provided as the restoring element, each of which is guided in a recess, in particular in a blind hole, in the actuating element. The spring is preferably a compression spring.

The door handle is preferably designed as a cylindrical round body with a preferred diameter between 18mm and 22mm, the cavity preferably being designed as an elongated hole in the door handle with a length between 65mm to 75mm and a width between 10mm to 14mm. In the assembled state of the actuating element, a gap between the sealing surfaces of the actuating element and the door handle outside the recess is preferably 0.1 mm to 0.5 mm wide. The actuating element is preferably designed in accordance with the shape of the elongated hole, the dimensions of the actuating element being selected so that the gap between the sealing surfaces is set.

The volume of the cavity in the first position of the actuating element preferably corresponds to 2.2 cm ³ to ³ cm 3. Such a cavity just provides sufficient disinfectant to wet the gripping surface and preferably also the palm of an operator. The volume is small enough to prevent drops from forming in the grip surface.

The door handle and the actuating element are more preferably made of a metal, preferably aluminum or stainless steel or, alternatively, a copper alloy. Preference is given to using antibacterial or antimicrobial metals in order to create an environmental condition that is unfavorable for the growth of germs and pathogens. In addition, metal door handles are advantageously particularly resistant to a large number of antimicrobial cleaning agents.

As an alternative, the door handle and / or the actuating element can also be produced from a plastic with a preferably antibacterial or antimicrobial surface or surface coating, preferably in an injection molding process. As a result, door handles can be produced in large numbers, but the chemical resistance is reduced under certain circumstances and the surface must also be processed in order to create an unfavorable environment for germs to grow.

In a preferred embodiment, the grip surface has an abrasively treated rough surface, preferably by means of sand or shot peening, with a roughness value between 20 μm and 40 μm measured according to ISO 8503, in order to increase the contact angle between the grip surface and a disinfectant. According to ISO 8503, the roughness value is understood to be the mean maximum height between the surface peak and valley (mean maximum peak-to-valley height). This ensures that the disinfectant wets the grip surface better and the formation of drops is avoided. A liquid therefore stays longer on the grip surface and thus has a beneficial effect on disinfecting the grip surface.

The invention preferably also comprises a door handle with a door pin and a door handle with an actuating element, the door handle preferably being mounted on the door pin at right angles and screwed against rotation about a longitudinal center axis of the door handle.

The pressure force for actuating the door handle, in particular the force for deforming a torsion spring in the mounting element of the door mandrel, preferably corresponds to at least one force to move the actuating element into the third position against the force of the restoring elements. This ensures that when the door handle is actuated, the actuating element closes the cavity and / or the channel in the third position and thus a further undesired inflow of liquid from the container is interrupted.

Furthermore, the invention also comprises a door with an already described door handle, the door handle being mounted on one or both sides of a door. In particular, a detachable connection of the door handle to the door pin enables assembly on both sides of a door, in contrast to a one-piece design of a door handle with a door pin.

It is also conceivable that a container is attached to the door leaf of the door and is connected to the channel of the door handle by means of a connecting element, in particular a hose.

In addition or as an alternative to the door handle, the door handle with the actuating element can also be designed in the form of a push handle, in particular a bow handle, for actuating a door.

For this purpose, the pull handle has receiving means which, together with the door handle, form a preferably cylindrical or tubular handle bar with a common axis of extent, the receiving means as a first tubular receiving section, the container for receiving the Form liquid that is connected to the connecting means of the door handle. Advantageously, this integration of the container into the handle bar can reduce the number of parts of the push handle and simplify the assembly or retrofitting of existing push handles. There is therefore preferably no need for a separate container with hose connections on the door leaf. Furthermore, an operator can advantageously also operate the pull handle in the area of the receiving means. The container designed in this way also forms a portion of the push handle that can be grasped by an operator.

Preferably, the door handle, in particular as a cylindrical round body, is pluggably connected at one end to the first tubular receiving section and at the other end to a second tubular receiving section, the already described connecting means of the door handle having circumferential sealing means to seal the first tubular receiving section as a container. The connecting means with the channel for guiding the liquid from the container into the cavity of the door handle is preferably formed along the extension axis of the handle bar as a reduced-cross-section and cylindrical connecting section of the door handle, the sealing means being arranged along the circumference of the cylindrical connecting section.

The cylindrical door handle, the cylindrical receiving means and thereby also the handle bar preferably have an identical diameter. Advantageously, there are no cross-sectional jumps between the door handle and the receiving means, so that the handle bar can be cleaned particularly easily and no contamination can accumulate in cross-sectional jumps. The connecting means of the door handle are arranged within the receiving means in the assembled state.

O-rings are preferably arranged as sealing means in a guide groove in the outer circumference of the connecting means, in particular the cylindrical connecting section, of the door handle, with the O-rings being pressed against an inside of the first tubular receiving section in the assembled state in such a way that the container is in the direction of the door handle is sealed and preferably at the same time the door handle is positively connected to the first receiving portion. This allows the door handle to be installed easily, in particular without a screw connection, and at the same time to seal the container at one end. At the other end, the container is closed with a preferably pluggable cover for refilling.

Alternatively, the lid can close and seal the container by means of a screw connection, preferably with a sealing ring.

The lid preferably has a locking mechanism or can preferably be actuated with a special tool or special key in order to ensure protection against theft or to prevent the container from being filled unintentionally. The locking mechanism can be designed as a lock within the lid that can be operated with a key, a locking element rotatable with the key being positively connected to the container in the closed state, in particular in a notch on the inside of the container, or non-positively connected to the container. For the use of a special tool, the cover preferably has notches, in particular two bores, in its outer end face, the special tool being designed to engage in these notches in a form-fitting manner and to actuate the preferably screwed cover, in particular to rotate it.

Preferably, this lockable or theft-proof cover is designed for a container of the pull handle, as well as for a container which is mounted on a door handle or the door handle itself.

Preferably, the door handle with a further cylindrical connecting section can also be inserted into the second receiving section in order to also ensure a form-fitting connection of the door handle to the door leaf in an assembled state. The first and the second receiving section are designed in such a way that the door handle is arranged in the middle of the handle bar.

The invention further comprises a door with at least one already described pull handle, the cylindrical handle bar of the pull handle being mounted with at least one mounting element on the receiving means on one or both sides of the door.

The receiving means is preferably designed as a first and second receiving section, with a mounting element each being arranged on the first and the second receiving section. As a result of this arrangement, the pull handle as a handle bar with assembly elements forms a type of bow handle, the door handle with the actuating element preferably being arranged in the center of the bow handle.

The receiving means can therefore be used to form a handle bar with which the door handle can be mounted on the door leaf and at the same time the container can be integrated into the handle bar in a space-saving manner.

The actuating element of the door handle is preferably on one of the mounting elements arranged opposite side of the handle bar so that an operator simultaneously operates or opens the door by pushing or exerting an impact force or pressure force on the handle bar, in particular with the palm of the hand, and actuates the operating element with the compressive force against the restoring elements.

The pressure force for actuating the pull handle, in particular the force for opening the door against the return means in the door hinges, preferably corresponds to at least one force to move the actuating element into the third position against the force of the return elements. This ensures that when the push handle is actuated, the actuating element closes the cavity and / or the channel in the third position and thus a further undesired inflow of liquid from the container is interrupted.

Alternatively, the actuating element can also be arranged rotated by 180 ° with respect to the preferred orientation for a pressure movement about the axis of extension of the handle bar, the operator then preferably gripping the operating element with his fingers and pulling the handle bar to open the door and at the same time adjust the operating element .

As a further alternative, the actuating element can also be arranged rotated around the axis of extension of the handlebar between the mentioned orientations preferred for a pulling or pushing movement, a lateral orientation, in particular rotated by 90 ° with respect to the orientation for the pushing movement, being preferred. In this lateral orientation, the actuating element can preferably be actuated by a lateral pressure force on the actuating element or by reaching around the handle bar and pressing the operator's hand together.

The axis of extension of the pull handle and the longitudinal center axis of the door handle are preferably aligned such that a liquid in the first tubular receiving section flows into the door handle by means of gravity, in particular through the channel of the connecting means, the axis of extension of the pull handle preferably aligned parallel to the direction of gravity is.

In the following, details and embodiments of the invention are explained with the aid of merely schematic drawings.

• 1: eine perspektivische Ansicht einer Türklinke mit Türdorn und Türgriff mit Betätigungselement und Behälter in einem an einem Türblatt montierten Zustand;
• 2a: einen Längsschnitt des Betätigungselements und einen Ausschnitt eines Längsschnitts des Türgriffs in einer x-z Ebene gemäß der 1;
• 2b: einen Längsschnitt des Betätigungselements in einer x-z Ebene gemäß der 2a und eine Seitenansicht des Betätigungselements;
• 2c: einen Ausschnitt eines Längsschnitts des Türgriffs in einer x-z Ebene gemäß der 2a;
• 2d: einen Längsschnitt des Betätigungselements und einen Ausschnitt eines Längsschnitts des Türgriffs in einer x-z Ebene gemäß der 2a und
• 3a bis 3c: jeweils eine Detailansicht des Betätigungselements und des Türgriffs gemäß der 2a in einer ersten, zweiten und einer dritten Stellung des Betätigungselements,
• 4a eine Draufsicht auf einen Stoßgriff mit Türgriff in einer x-y Ebene,
• 4b eine Schnittansicht des Stoßgriffs gemäß der 4a entlang einer Schnittachse B-B in einer x-z Ebene,
• 4c eine perspektivische Ansicht auf den Stoßgriff gemäß der 4a und der 4b.

Show it:

• 1 : a perspective view of a door handle with a door pin and door handle with an actuating element and container in a state mounted on a door leaf;
• 2a : a longitudinal section of the actuating element and a detail of a longitudinal section of the door handle in an xz plane according to FIG 1 ;
• 2 B : a longitudinal section of the actuating element in an xz plane according to FIG 2a and a side view of the actuator;
• 2c : a detail of a longitudinal section of the door handle in an xz plane according to FIG 2a ;
• 2d : a longitudinal section of the actuating element and a detail of a longitudinal section of the door handle in an xz plane according to FIG 2a and
• 3a to 3c : each a detailed view of the actuating element and the door handle according to FIG 2a in a first, second and a third position of the actuating element,
• 4a a top view of a pull handle with a door handle in an xy plane,
• 4b a sectional view of the pull handle according to FIG 4a along a cutting axis BB in an xz plane,
• 4c a perspective view of the pull handle according to FIG 4a and the 4b .

In the 1 is a doorknob 100 shown with a door handle 10 with actuator 12th and a container 28 are mounted on a door pin 40, which in turn is mounted on a door leaf 46 is mounted. It is a non-actuated first position of the actuating element 12th shown, with preferably a part of the actuating element 12th from the door handle 10 , similar to a key, protrudes. The surfaces of the actuator 12th and the door handle 10 together form a grip surface 14th from over the doorknob 100 and the actuator 12th can preferably be operated manually.

The door handle 10 is in one on the door leaf 46 mounted state in a non-actuated position preferably arranged horizontally and the actuating element 12th is preferably in such a way at least partially in the door handle 10 is arranged that an adjusting movement of the actuating element 12th and a corresponding compressive force F. an operator on the grip surface 14th of the actuating element 12th in the direction of gravity G is executable. This allows the actuating element 12th preferably simultaneously with a depression of the door handle 100 serve.

Preferably the container is 28 with an outlet side or an outlet section 48 with a lanyard 26th , preferably by means of a screw connection, which is sealed by means of sealing rings, with the door handle 10 connected. The container is preferred 28 in one direction of gravity G above the door handle 10 arranged so that a liquid in the container 28 towards the door handle 10 flows and preferably no complex pumping mechanism is required.

The container 28 is with a lid 60 closed, which is preferably opposite the outlet section 48 is arranged and is screwed onto an inlet section. The cover preferably seals 60 the container 28 to prevent the disinfectant from evaporating. The cover is more preferably lockable for security reasons.

According to the 2a is in the non-actuated first position of the actuating element 12th a cavity 16 inside the door handle 10 by the actuator 12th limited. The door handle 10 is from a canal 24 penetrated into the cavity at one end 16 opens and at the other end by means of a connecting means 26th (please refer 1 ) with a container 28 connected to across the channel 24 and the connecting means 26th a liquid, particularly a disinfectant, from the container 28 into the cavity 16 to direct.

The channel is preferred 24 along a longitudinal axis 50 of the door handle 10 in the door handle 10 introduced, for example by the door handle 10 is drilled open from a side facing the door pin 40 and a resulting opening is adhesively or screwed closed, or alternatively there is a connecting means, for example a hose, to a container 28 is appropriate. Furthermore, the actuating element 12th prefers a notch 54 on, which is preferably in the first position of the actuating element 12th the opening of the canal 24 opposite, so that in the first position of the actuating element 12th the liquid unimpeded into the cavity 16 can flow.

The actuator 12th has a gap on the side walls in the assembled state 52 with distance t to the door handle 10 on, with a sealing element 18th in the gap 52 located to the cavity 16 to seal. In particular, the sealing element 18th between a first sealing surface 20th of the actuating element 12th , according to the 2 B , and a second sealing surface 22nd of the door handle 12th , according to the 2c , arranged.

According to the 2c is still a recess 32 in the second sealing surface 22nd of the door handle 12th educated. Alternatively or additionally, the recess 32 also in the first sealing surface 20th of the actuating element 12th be trained. This recess is preferred 32 semicircular and can be produced with a ball end mill.

The actuator 12th is contrary to preferably two restoring means 30th manually with a compressive force F. operable and is from a first position in a second and third position according to the 3a to 3c movable.

In an alternative embodiment, the gripping surface 14th of the actuating element 12th according to the 2d concave towards the cavity 16 be shaped. The concave shape is designed in at least one direction, preferably in several directions, in order to prevent an accumulation of liquid in the gripping surface 14th of the actuating element 12th to favor. Because the concave shape towards the cavity 16 is carried out, a dripping from the grip surface is advantageous 14th prevented. The amount of the accumulation of liquid preferably corresponds to the amount of liquid that is taken up by the hand of an operator. The accumulation of liquid advantageously prevents immediate evaporation of disinfectant before it can be picked up by the hand of an operator.

In the 3a to 3b is the door handle 10 with actuator 12th in a transfer of the actuating element 12th shown from the first to a second position, wherein in the second position according to FIG 3b the volume of the cavity 16 compared to the first position according to 3a is reduced in size. The sealing element is in the second position 18th in the area of the recess 32 . Through the recess 32 the gap distance increases t between the first sealing surface 20th and the second sealing surface 22nd , whereby the sealing element 18th at least from one of the sealing surfaces 20th , 22nd solves. This is the cavity 16 partially opened and by the actuator 12th displaced liquid in the cavity 16 can through the gap 52 between the actuator 12th and the door handle 10 into the grip surface 14th flow.

Through a preferred horizontal mounting of the door handle 10 on the door spike 40 and, preferably, the volume of the cavity 16 reducing adjusting movement of the actuating element 12th in the direction of gravity G the liquid is distributed particularly evenly in the grip surface 14th and the liquid flows particularly evenly between the sealing surfaces 20th , 22nd along the circumference of the actuating element 12

In the second position of the actuating element 12th becomes the channel 24 , preferably simultaneously with the opening of the cavity 16 , at least partially by a blocking section 44 in the actuator 12th covered. This is the channel 24 at least partially closed or blocked at one end and the flow resistance is increased to such an extent that an inflow of liquid caused by gravity from the container 28 into the grip surface 14th is at least disabled.

In the 3c is a third position of the actuating element 12th shown in which the volume of the cavity 16 is further reduced compared to the second position, the gap distance t in the area of the sealing element 18th also reduced in size and with the sealing element 18th as in the first position on both sealing surfaces 20th , 22nd abuts to the canal 24 and / or the cavity 16 to close completely. In this third position, the door handle 10 be held without additional liquid due to gravity in the grip surface 14th flows.

The actuating element is in the third position 12th advantageously on the ground 43 or at a short distance above the ground 43 of the cavity 16 so that as much of the liquid as possible passes through the actuating element 12th out of the cavity 16 is displaced and thereby no contaminated liquid in the cavity 16 can accumulate.

The sealing element 18th is preferably an elastic O-ring 19th , which according to the 2a in a groove 34 in a sealing surface 20th of the actuating element 12th is fitted. Alternatively, the groove 34 also in a sealing surface 22nd of the door handle 10 be arranged, then the recess 32 preferably in the sealing surface 20th of the actuating element 12th is arranged. According to the 3a and the 3c is the O-ring 19th in the first and the third position of the actuating element 12th preferably partially in a region of the recess 32 on the sealing surface 22nd of the door handle.

The reset means 30th are preferably designed so that in the first position of the actuating element 12th according to the 2a or the 3a an adhesive force between the sealing element 18th and the sealing surfaces 20th , 22nd is greater than a force of the restoring means 30th to a clamping fastening of the actuating element 12th in the door handle 10 to reach.

The restoring means are preferably 30th biased so that at least part of the sealing element 18th into a crack 52 between the sealing surfaces 20th , 22nd is pressed. In particular, an elastic sealing element 18th , preferably an O-ring 19th , is in one area of the sealing surfaces 20th , 22nd outside the recess 32 into the groove 34 and the gap 52 pressed. In this state there is the adhesive force between the sealing element 18th and the sealing surfaces 20th , 22nd particularly high and preferably greater than the force of the restoring elements 30th . Part of the sealing element 18th can be in the recess 32 expand, causing the sealing element 18th additionally through the geometric change in the gap distance t in the area of the recess 32 uptight. The jamming of the sealing element 18th at the same time enables the cavity to be sealed 16 and the attachment of the actuating element 12th in the door handle 10 .

The gap spacing is preferred t or the size and arrangement of the sealing element 18th designed so that the sealing element 18th though through the gap 52 can be pressed and mounted, but the sealing effect already takes place as soon as the sealing element 18th partially on one area of the recess 32 is applied. For dismantling the actuating element 12th is an adhesive force and preferably also a geometrically determined shear force at the recess 32 overcome to the sealing element 18th to solve. This is the actuating element in a particularly simple manner 12th in the door handle 10 fixed without having to use additional fixatives.

As a restoring means 30th are preferably two springs 36 , in particular helical springs, are used, each in a recess 38 , in particular in a blind hole, in the actuating element 12th are led. This results in a preferably uniform adjusting movement of the actuating element 12th allows and tilting of the actuating element 12th on one of the sealing surfaces 20th , 22nd prevented. That is why the wells are 38 also preferably in the longitudinal direction outer regions of the actuating element 12th executed. By the pen 36 it is in particular a compression spring that is in the first position of the actuating element 12th is biased and by a compressive force F. can be squeezed together by an operator and thus acts as a return means.

The power of the restoring means 30th are preferably chosen so that the transition from the second position to the third position of the actuating element 12th with little manual pressure F. is adjustable by an operator, so that after an operation of the actuating element 12th , especially after a normal door handle operation in which the door handle 100 is actuated against a torsion spring, the actuating element 12th is moved to the third position and the cavity 16 is closed again.

The door handle 10 is preferably made of a cylindrical round body, the diameter of the door handle 10 is between 18mm and 22mm and the grip surface 14th of the door handle 10 is formed at least over a length of preferably 80mm to 120mm. This is a partial area of the door handle 10 putting a container 28 is not attached as part of the grip surface 14th considered.

The cavity 16 is preferred as an elongated hole in the cylindrical door handle 10 executed and preferably in the middle of the grip surface 14th arranged. Here lies the length I. of the elongated hole preferred between 65mm and 75mm and the width b of the elongated hole preferably between 10mm to 14mm. The depth of the elongated hole in the door handle 10 is preferably between 14mm and 17mm.

The shape of the actuator 12th is preferably the hollow space designed as an elongated hole 16 adjusted, the length and width of the actuator 12th from the dimensions of the cavity 16 subtracting the gap distance t surrender. The one grip surface 14th forming surface of the actuating element 12th preferably has rounded or beveled edges, so that in the first position of the actuating element 12th the transition from the area of the grip surface 14th of the door handle 10 in the area of the grip surface 14th of the actuating element 12th preferably runs continuously or with a small edge height. The height H of the actuating element 12th is preferably 15mm to 17mm. At this height H ensures that the actuator 12th not during an actuating movement with the inner surfaces of the cavity 16 canted.

The gap t between the sealing surfaces 20th , 22nd and outside the recess 32 is preferably 0.1mm to 0.5mm wide. Due to the small width in connection with the mentioned height H of the actuating element 12th good guidance of the actuator 12th and tilting can be prevented, so that the actuating element 12th adjusts itself as evenly as possible and the liquid outlet along the circumference of the actuating element 12th is even.

There is also a groove 18th for receiving the sealing element 18th preferably in the circumferential direction of the actuating element 12th executed and at a preferred distance from the bottom 42 of the actuating element 12th arranged between 8mm to 9mm.

One width of the groove 34 is preferably larger than the diameter of the O-ring 19th to avoid deformation of the O-ring 19th within the groove as soon as it is between the sealing surfaces 20th , 22nd is clamped. The diameter of the cross section of the O-ring 19th and the depth of the groove 34 depends on the gap distance t between the sealing surfaces 20th , 22nd . The enlargement of the gap distance in the area of the recess 32 is in turn dependent on the diameter of the cross section of the O-ring 19th . Preferably the depth of the groove is 34 chosen so that 20% to 40% of the O-ring diameter comes out of the groove 34 stands out. The gap distance should be t outside the recess 32 be at least smaller than the protrusion of the O-ring diameter in order to ensure a sufficient sealing effect. The actuating element is used for assembly 12th with O-ring 19th into the cavity 16 pressed, with the O-ring 19th deforms elastically. The actuator 12th is moved until the O-ring 19th in the area of the recess 32 expands and through the return elements 30th jammed in the first position. A preferred O-ring diameter is 1.5mm to 2mm.

In the assembled state of the actuating element 12th in the cavity 16 there is a gap between the bottom 42 of the actuating element 12th and the soil 43 of the cavity 16 depending on the position of the actuating element 12th between 0mm to 3mm. As mentioned earlier is the recess 32 arranged and dimensioned so that the sealing element 18th in the first and third position the cavity 16 seals. Therefore, the dimension and arrangement of the recess 32 on the arrangement of the sealing element 18th and the desired distance between the bottom 42 of the actuating element 12th and the soil 43 of the cavity 16 be determined, the recess 32 preferably at a distance of 8mm to 13mm from the floor 43 of the cavity 16 is introduced.

The blocking section 44 is at least in one area of the sealing surface 20th of the actuating element 12th running that an opening of the channel 24 into the cavity 16 is facing. The size of the obstruction section 44 is through the notch 54 in the actuator 12th predetermined, with a height of the notch 54 in the actuator 12th is chosen so that the outlet of the channel 24 into the cavity 16 in a first position of the actuating element 12th is open. The height of the notch is preferably 54 in the actuator 12th between 3mm to 4mm. It is also preferred that the notch 54 a breakthrough to the depression 38 the reset means 30th trains.

In the assembled state of the actuating element 12th corresponds to the volume of the cavity 16 in the first position of the actuating element 12th preferably 2.2cm ³ to 3cm ³ . The volume of liquid that is passed through the actuating element is then preferably 12th into the grip surface 14th moves from the first position to the third position by an adjusting movement, between 1ml and 3ml.

The door handles are particularly preferred 10 and the actuator 12th made of a metal, preferably aluminum or stainless steel.

The grip surface 14th preferably has an abrasively treated rough surface, preferably by means of shot blasting or sandblasting, with a roughness value between 20 μm and 40 μm measured according to ISO 8503, around the contact angle between the gripping surface 14th and a disinfectant to enlarge.

Like in the 1 shown is the door handle 10 preferably mounted at right angles to the door pin 40 and against rotation about a longitudinal center axis 50 of the door handle 10 screwed. The door handle 10 has a tapered section at one end 56 which penetrates the door pin 40. The door pin 40 is preferably designed to be hollow and has a screw for fastening the door handle 10 is in a thread in the interior of the door pin 40 in the direction of a longitudinal axis of the door pin 40 on a preferably flat surface of the tapered section 56 of the door handle 10 screwable. In the assembled state of the door pin 40 on a door leaf 46 this screw is not accessible to an operator without dismantling the door pin 40 itself, so that a certain protection against theft is provided.

The compressive force is particularly preferably equivalent F. on the door handle 10 to operate the door handle 100 , in particular for deforming a torsion spring, at least one force to the actuating element 12th against the force of the return elements 30th to move to the third position. As a result, a kind of leakage protection is achieved, as the cavity 16 and / or the channel 24 in the third position of the actuating element 12th are closed. The torsion spring can be in a mounting element 58 the doorknob 100 be arranged, the torsion spring by a relative rotational movement between the door pin 40 and mounting element 58 is tensioned.

As also from the 1 can be seen, the door handle 10 be mounted on one or both sides of a door, as the door handle 100 from a removable door handle 10 and door pin 40 is made. As long as a door pin 40 with a corresponding mounting receptacle is provided, the door handle 10 , as opposed to a doorknob 100 with a one-piece door spike 40 and door handle 10 , in an arbitrarily rotated orientation around the longitudinal axis 50 of the door handle 10 be arranged.

In another embodiment is a container 28 on the door leaf 46 attached and by means of a hose to the channel 24 of the door handle 10 connected.

In the 4a , of the 4b and the 4c is the door handle 10 as a push handle 102 shown on a door leaf shown schematically 46 is mounted. In contrast to the door handle described above 100 , is the push handle 102 fixed and the door handle 10 not movable or rotatable with the door leaf 46 connected, with a door preferably by a pushing movement on the pull handle 102 open.

Compared to the one already in the 1 shown door handle 10 , forms the door handle shown here 10 together with recording equipment 70 a cylindrical or tubular handle bar 104 with a common axis of extent E. off, the actuator 12th analogous to the 1 and the 2a is also in the non-actuated first position.

The push handle 102 has as receiving means 70 preferably a first and a second tubular receiving section 72 , 74 on, with the door handle 10 Male or reduced cross-section connecting sections on both sides 80 and in the first and second tubular receiving portions, respectively 72 , 74 is pluggable. This is preferably the door handle 10 along the handlebar 104 arranged in the middle.

Advantageously, the handle bar has 104 no jumps in cross-section between the door handle 10 and the first and second receiving portions 72 , 74 and one along the extension axis E. continuous outer diameter d so that the handlebar 104 is particularly easy to clean and there is no contamination in the transition from the door handle 10 to the first and second receiving sections 72 , 74 can accumulate.

The handle bar preferably has 104 a length of 250 mm to 800 mm, particularly preferably 400 mm, and a diameter d from 18mm to 55mm, particularly preferably from 30mm, with an operator holding the handlebar 104 should be able to grasp at least partially with one hand.

As in particular from the 4b As can be seen, is the first tubular receiving portion 72 as a container 28 designed to take up a liquid, in particular a disinfectant. This is the first receiving section 72 one end with the lanyard 26th of the door handle 10 connected in a liquid-tight manner. There are also sealing elements 18th , especially two O-rings 19th in each one guide groove 34 , between the lanyard 26th of the door handle 10 , which at the same time as a reduced-cross-section and a cylindrical connecting section 80 is formed, and the inside 78 of the first receiving section 72 arranged and pressed in to seal. The lanyard 26th is from the canal 24 permeated to liquid from the container 28 into the cavity 16 of the door handle 10 to direct. It is preferably used as a connecting means 26th formed reduced-cross-section connecting section 80 towards the cavity 16 reamed to the canal 24 along the extension axis E. to train.

Compared to the embodiment in FIG 1 is the tapered section shown there 56 here as a lanyard 26th formed and from the channel 24 penetrated.

In particular due to the pressed-in sealing elements 18th is the door handle 10 frictionally with the first receiving section 72 connected. Through the lower second receiving section 74 is the door handle 10 with the reduced cross-section connecting section 80 additionally arranged in a form-fitting manner and in the assembled state of the pull handle 102 with the door leaf 46 connected.

The first recording section 72 has a lid at the other end 60 on to the as a container 28 formed first receiving portion 72 to close. This allows the container 28 can easily be filled or topped up with the liquid.

The lid 60 can with the container 28 be non-positively and / or positively connected, with a pluggable or screwable cover 60 is preferred. The cover is also preferred 60 secured against theft or unintentional filling of the container by a security mechanism, not shown here, in particular a lockable lock. Alternatively, the screwable cover can be used as a safety mechanism 60 Notches, in particular two bores, preferably blind holes, in one end face along the axis of extent E. have that can only be operated with an appropriate special tool.

The container preferably has a volume of 100 ml to 700 ml, particularly preferably 400 ml, a larger volume being preferred in order to achieve as many actuation cycles as possible.

The 4a and 4b show the first and second tubular receiving sections 72 , 74 with one mounting element each 76 to the handle bar 104 on the door leaf 46 to assemble. A distance between the handlebar 104 and the door leaf 46 is so by the mounting elements 76 designed that an operator the handlebar 104 can reach around manually.

The axis of extension is preferably E. the handle bar 104 along the direction of the weight force G aligned, the first receiving portion 72 so above the door handle 10 that the liquid is located in the container 28 through the canal 24 into the cavity 16 flows and preferably no complex pumping mechanism is required.

The door handle 10 with actuator 12th is in the 4b essentially analogous to that 2a shown and can be operated analogously to the description of the figures already given, the actuating element 12th here preferably with force F. , in particular an impact force against the door leaf 46 and restoring means 30th , in particular two compression springs 36 , in a direction perpendicular to the direction of the weight force G is actuatable.

In contrast to the 1 and the 2a shows the door handle shown here 10 for assembly as a push handle 102 Connection sections with reduced cross-section on both sides 80 on, with the container 28 along the extension axis E. or the longitudinal central axis 50 the door handle with the door handle 10 is connected and the channel 24 the door handle 10 and the connecting means 26th along this axis of extension E. penetrates.

The actuator 12th in particular on the handle bar 104 the assembly elements 76 arranged opposite one another, in particular by rotating the door handle 10 around the axis of extension E. that the actuator 12th by the pressure force F. can be operated in the form of a manually entered impact force, in particular with the heel of the hand of an operator, and at the same time the door can be opened by an impact movement.

The compressive force is particularly preferably equivalent F. on the door handle 10 to operate the pull handle 102 , in particular to move a door against a return means in a door hinge, at least one force to the actuating element 12th against the force of the return elements 30th to move to the third position. As a result, a kind of leakage protection is achieved, as the cavity 16 and / or the channel 24 in the third position of the actuating element 12th are closed.

Alternatively, the door handle 10 also around the axis of extension E. be arranged rotated by 180 °, in which case the actuating element 12th is preferably operated by a tensile force, in particular with the fingers of the hand of an operator.

List of reference symbols

10

Door handle

12th

Actuator

14th

Grip surface

16

cavity

18th

Sealing element

19th

O-ring

20th

First sealing surface of the actuating element

22nd

Second sealing surface of the door handle

24

channel

26th

Lanyard

28

container

30th

Restoring means

32

Recess

34

Groove

36

feathers

38

Depression in the actuating element

42

Underside of the actuator

43

Bottom of the cavity

44

Blocking section

46

Door leaf

48

Outlet section of a container

50

Longitudinal central axis

52

gap

54

Notch in the actuator

56

Tapered section of the door handle

58

Mounting element of the door handle

60

Lid of the container

70

tubular receiving section

72

first receiving section

74

second receiving section

76

Assembly element of the pull handle

78

Inside of the first receiving section

80

Reduced cross-section connecting section of the door handle

100

Doorknob

102

Pull handle

104

Handle bar

E.

Extension axis of the handle bar 104

b, i

Width and length of the cavity

d

Door handle diameter

t

Gap distance between the sealing surfaces

F.

Pressure force of an operator on the actuating element

H

Actuator height

G

Direction of gravity

x, y, z

Spatial axes of a Cartesian coordinate system

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

• US 2014338153 A1 [0005]
• DE 102012017365 A1 [0006]
• GB 2436284 A [0007]
• EP 3118395 B1 [0009]
• DE 202004006845 U1 [0010]

Claims (18)

Door handle, in particular for interior and / or exterior doors in public facilities and / or companies, with an actuating element (12) for disinfecting a grip surface (14) of the door handle (10), the actuating element (12) being at least partially arranged in the door handle (10) which in a non-actuated first position delimits a cavity (16) inside the door handle (10), the door handle (10) being penetrated by a channel (24) which opens into the cavity (16) at one end and connecting means at the other (26) for connection to a container (28) in order to conduct a liquid, in particular a disinfectant, from the container (28) into the cavity (16) via the channel (24) and the connecting means (26), and wherein the actuating element (12) is manually displaceable against at least one restoring means (30), characterized in that the cavity (16) with at least one sealing element (18) between a first sealing surface (20) of the actuating element ent (12) and a second sealing surface (22) of the door handle (10) is sealed, wherein a recess (32) is formed in at least one of the sealing surfaces (20, 22) in order to reduce the volume of the cavity (16) in relation to the First position reducing the second position of the actuating element (12) to release the sealing element (18) from at least one sealing surface (20, 22), wherein a blocking section (44) of the first sealing surface (20) is at a transition between the cavity (16) and the channel (24) is arranged and aligned so that the locking section (44) of the actuating element (12) at least partially closes or blocks the channel (24) when the actuating element (12) is transferred from the first to the second position, the actuating element (12) displaces the liquid from the cavity (16) in the direction of the gripping surface (14) and in a third position of the actuating element which further reduces the volume of the cavity (16) compared to the second position ent (12) the sealing element (18) rests on both sealing surfaces (20, 22) in order to completely close the channel (24) and / or the cavity (16). Door handle after Claim 1 , characterized in that the actuating element (12) is arranged at least partially in the door handle (10) in such a way that, when the door handle (10) is mounted on a door leaf (46), an adjusting movement of the actuating element reducing the volume of the cavity (16) (12) can be executed in the direction of gravity (g). Door handle for one of the Claims 1 or 2 , characterized in that the container (28) is connected, preferably screwed, to an outlet side or an outlet section (48) on the door handle (10) in a liquid-tight manner in the direction of gravity (g). Door handle for one of the Claims 1 to 3 , characterized in that the sealing element (18) is an elastic O-ring (19) and is fitted in a groove (34) in one of the sealing surfaces (20, 22), the recess (32) and the groove (34) are formed in each one of the sealing surfaces (20, 22). Door handle for one of the Claims 1 to 4th , characterized in that in the first position of the actuating element (10) an adhesive force between the sealing element (18) and the sealing surfaces (20, 22) is greater than the force of the restoring means (30) to ensure a clamping fastening of the actuating element (10) in the To reach the door handle (10). Door handle for one of the Claims 1 to 5 , characterized in that the restoring means (30) comprises two springs (36), in particular helical springs, which are each guided in a recess (38), in particular in a blind hole, in the actuating element (12). Door handle for one of the Claims 1 to 6th , characterized in that the door handle (10) is designed as a cylindrical round body with a preferred diameter (d) between 18mm and 22, the cavity (16) preferably as an elongated hole in the door handle (10) with a length (I) between 65mm to 75mm and a width (b) between 10mm to 14mm and wherein a gap (t) between the sealing surfaces (20, 22) and outside the recess (32) is between 0.1mm to 0.5mm wide. Door handle for one of the Claims 1 to 7th , characterized in that the volume of the cavity (16) in the first position of the actuating element (12) corresponds to 2.2cm ³ to 3cm ³ . Door handle for one of the Claims 1 to 8th , characterized in that the door handle (10) and the actuating element (12) are made of a metal, preferably aluminum or stainless steel. Door handle for one of the Claims 1 to 9 , characterized in that the grip surface (14) has an abrasively treated rough surface, preferably by means of sand or shot peening, with a roughness value between 20 µm and 40 µm measured according to ISO 8503, in order to increase the contact angle between the grip surface (14) and a disinfectant . Door handle with door spike (40) and door handle (10) with actuating element (12) according to one of the Claims 1 to 10 , characterized in that the door handle (10) is mounted at right angles to the door pin (40) and is screwed against rotation about a longitudinal center axis (50) of the door handle (10). Doorknob Claim 11 , characterized in that a pressure force (F) on the door handle (10) for actuating the door handle (100), in particular for deforming a torsion spring, corresponds to at least one force to move the actuating element (12) against the force of the restoring elements (30) to move the third position. Door with doorknob Claim 11 or 12th , wherein the door handle (10) is mounted on one or both sides of a door. Door after Claim 13 wherein a container (28) is attached to the door leaf (46) and is connected to the channel (24) of the door handle (10) by means of a hose. Pull handle, in particular a bow handle, and door handle (10) with actuating element (12) according to the Claim 1 and preferably according to one of the Claims 3 to 10 , characterized in that the pull handle (102) has receiving means (70) which together with the door handle (10) form a preferably cylindrical or tubular handle bar (104) with a common axis of extension E, the receiving means (70) being a first tubular Receiving section (72) form the container (28) which is connected at one end to the connecting means (26) of the door handle (10). Push handle after Claim 15 , characterized in that the door handle (10) is pluggably connected at one end to the first tubular receiving section (72) and at the other end to a second tubular receiving section (74), the connecting means (26) of the door handle (10) having peripheral sealing means (18) to seal the first tubular receiving portion (72) as a container (28). Door with at least one pull handle (102) according to one of the Claims 15 or 16 wherein the cylindrical handle bar (104) of the pull handle (102) is mounted with at least one mounting element (76) on the receiving means (70) on one or both sides of the door. Door after Claim 17 , characterized in that the axis of extension (E) of the pull handle (102) is aligned such that a liquid in the first tubular receiving section (72) flows as a container (28) into the door handle (10) by means of gravity (g), wherein the axis of extension (E) of the pull handle (102) is preferably aligned parallel to the direction of gravity (g).

Images