DE102020132615A1 - Retrofit kit for a door handle assembly in an aircraft, door handle assembly with the retrofit kit, and method for retrofitting a door handle assembly with the retrofit kit - Google Patents

Abstract

A retrofit kit (4) for retrofitting a door handle arrangement (2) for a door (1) in an aircraft is proposed, the retrofit kit having at least one operating handle (3) for operating the door (1), the operating handle (3) having a Mounting section (7) for mounting the operating handle (3) on the door (1), the operating handle (3) having a handle section (9) for opening and/or closing the door (1) by hand, the handle section ( 9) adjoins the assembly section (7), the actuating handle (3) having a forearm operating section (10) for opening and/or closing the door (1) with the forearm, the forearm operating section (10) being in an assembled state of the actuating handle (3 ) connects upwards to the handle section (9) and/or the mounting section (7).

Description

The invention relates to a retrofit kit for retrofitting a door handle arrangement for a door in an aircraft. Furthermore, the invention relates to a door handle arrangement with the retrofit kit and a method for retrofitting a door handle arrangement with the retrofit kit.

To actuate, in particular to open and close, doors in aircraft, latches, rotary knobs or handles are usually used, all of which can be operated with the hand, in particular the palm, fingers and/or the ball of the hand. This means that dirt or contamination on the hands, such as viruses and bacteria, can be passed on or transmitted.

The object of the invention is to improve a door handle arrangement in an aircraft with regard to hygiene regulations. Furthermore, it is the object of the invention to propose a corresponding door handle arrangement and a method for retrofitting such a door handle arrangement.

This object is achieved by a retrofit kit having the features of claim 1, a door handle arrangement having the features of claim 14 and a method having the features of claim 15. Preferred or advantageous embodiments of the invention result from the dependent claims, the following description and the attached figures.

The subject matter of the invention is a retrofit kit which is designed and/or suitable for retrofitting a door handle arrangement for a door in an aircraft. In particular, the door handle arrangement is designed and/or suitable for a toilet door, a service trolley, also known as a “trolley”, a monument, in particular a galley, or a cabin door, e.g. storage and/or sleeping space. The door can be designed as a pivoting, wing, sliding or folding door.

The retrofit kit has at least or precisely one actuating handle which is designed and/or suitable for actuating the door. The operating handle has a mounting section which is set up for mounting the operating handle on the door. In particular, the actuating handle can be fastened to the door via the mounting section in a form-fitting and/or force-fitting and/or cohesive manner. Preferably, the assembly section can be releasably connected to the door via a screw and/or plug connection. Alternatively, the assembly section can be permanently connected to the door via an adhesive connection. The mounting section particularly preferably forms a uniform mounting interface for mounting the actuating handle on different door handle arrangements or door types.

The actuating handle has a handle section which is designed and/or suitable for opening and/or closing the door by hand. The handle section adjoins the mounting section at least approximately at right angles. In this context, “at least approximately at right angles” is to be understood as meaning that the handle section roughly follows the mounting section at an angle of approximately 90 degrees. In this case, the handle section can extend in a straight or curved or arcuate manner from the mounting section. In any case, however, the handle section runs in the same direction and/or parallel to a door plane of the door. The door plane is preferably defined by a door leaf of the door.

The actuating handle has a forearm operating section, which is designed and/or suitable for opening and/or closing the door with a forearm. In particular, a user can operate the actuating handle by inserting his forearm and/or elbow between the door and the forearm section in order to transmit a tensile and/or compressive force to the actuating handle via the forearm section and to close or open the door without using his hand . to open. In this case, the forearm operating section connects upwards to the handle section and/or the mounting section when the operating handle is in a mounted state. In particular, “upwards” is to be understood to mean that the forearm operating section is directed upwards in an installation situation, in particular in the direction of a cabin ceiling. In this case, the forearm operating section can extend in a straight or curved or arcuate manner from the mounting section and/or the handle section. In principle, the forearm operating section can be oriented in the same direction and/or parallel to the door panel of the door. Alternatively, however, the forearm operating section can also run at an angle or a curvature to the plane of the door. In particular, the forearm operating section has a shape that fits snugly against the user's forearm, making it possible to operate the operating handle in a particularly comfortable manner.

The advantage of the invention is, in particular, that the actuating handle according to the invention enables a door in an aircraft to be operated hygienically using the forearm or elbow. In addition, regular operation by hand is still possible through the handle section. Another advantage is that the operating handle can be retrofitted used instead of a conventional operating handle and can be easily mounted on the door via the mounting section. A quick retrofit solution is thus proposed, which can be retrofitted into existing aircraft systems in a particularly simple manner.

In a specific embodiment of the invention, it is provided that the assembly section defines an assembly plane. In particular, the mounting plane is in the same direction and/or parallel to the door leaf and/or the door plane of the door when the actuating handle is in the mounted state. Preferably, the assembly section is and/or can be attached to the door in an assembly direction, with the assembly direction being understood as a directional vector directed orthogonally to the assembly plane. In an assembled state, the forearm operating section extends upwards at a distance from the assembly plane in both a horizontal and a vertical orientation of the handle section. In particular, the handle section extends in a gripping direction, which is to be understood as a directional vector that is perpendicular to the mounting direction and/or is in the same direction as the mounting plane. In particular, the distance is dimensioned such that there is sufficient space for a forearm of the user between the forearm operating section and the door, in particular the door leaf, when the actuating handle is in the assembled state. For example, the distance is more than 40 mm, preferably more than 50 mm, especially more than 60 mm. A pulling movement can preferably be transmitted to the door via the lower arm section, whereas a compressive force can be transmitted to the door via the door leaf. An actuating handle is thus proposed which is characterized by a simple and material-saving design. In addition, an actuation handle can be implemented which is similar to a conventional actuation handle and has been expanded to include the function of being able to be operated with the forearm.

In a further specification, it is provided that the forearm operating section extends upwards away from the mounting section on one side and the handle section extends downwards away from the mounting section on an opposite side when the handle section is vertically aligned. In particular, in the mounted state, the forearm operating section extends, starting from the mounting section, in the direction of the cabin ceiling and the handle section in the direction of a cabin floor. The forearm operating section preferably extends in a further gripping direction, with the further gripping direction being directed counter to the gripping direction when the handle portion is vertically aligned. In particular, when the handle section is vertically aligned, the forearm operating section extends away from the mounting plane or the door plane with a curvature. An actuating handle is thus proposed which is characterized by an attractive design and simple underarm operability, in particular when the handle section is aligned vertically, for example in the case of folding or sliding doors.

In an alternative specification, it is provided that the forearm operating section extends upwards away from the handle section when the handle section is horizontally aligned. In particular, in an assembled state, the forearm operating section extends, starting from the assembly section, in the direction of the cabin ceiling and the handle section in a transverse direction directed transversely thereto. The forearm operating section preferably extends in a further gripping direction, with the further gripping direction being directed transversely and/or perpendicularly to its gripping direction when the handle portion is horizontally aligned. In particular, when the handle section is horizontally aligned, the forearm operating section extends away from the mounting or door plane either parallel to the mounting or door plane or at an angle and/or a curvature. An actuating handle is thus proposed which is characterized by an attractive design and simple underarm operability, particularly when the handle section is horizontally aligned, for example in the case of pivoting or wing doors.

In a first possible implementation, it is provided that the actuating handle is designed as a door handle which can be and/or is connected firmly, in particular rigidly, to the door via the mounting section. In particular, the door handle is mainly used to transmit a pulling force to a locking-free door in order to open or close it. The door handle is thus designed as a so-called “pull handle”. The handle section of the door handle is preferably aligned vertically in the assembled state, with the door preferably being designed as a folding or sliding door. Alternatively, however, a horizontal orientation of the handle section is also conceivable. To open or close the door with a forearm, this is applied to the forearm operating section in order to transmit the pulling force to the door. In principle, the door handle of the retrofit kit can be mounted, preferably screwed, on the door instead of a conventional door handle. Alternatively, however, the door handle can also be mounted, preferably glued, to an existing door handle. An actuating handle is thus proposed which is characterized by simple assembly on non-locking doors draws. In addition, the door handle no longer has to be gripped to operate the door.

In a further development it is provided that the door handle has a further mounting section section for mounting the actuating handle on the door, with the handle section extending between the two mounting sections. In particular, the actuating handle can be and/or is mounted via the two mounting sections on the door, in particular the door leaf or alternatively on the existing door handle. In particular, the actuating handle can be mounted in existing screw mounts via the two mounting sections on the door using screw means. Alternatively, the operating handle of the retrofit kit, in particular the two assembly sections and the handle section, has a negative contour when the operating handle is arranged on the existing door handle, in which the existing door handle is countersunk and/or positively received. For example, the existing door handle can be glued into the negative contour. A door handle is thus proposed which is characterized by particularly robust and simple assembly.

In an alternative implementation, the actuating handle is designed as a push handle for actuating a locking mechanism, with the mounting section being designed for mounting on a pusher pin. In particular, the push handle serves both to transmit an actuating force to the locking mechanism and to transmit a pulling force to a lockable door in order to open or close it. The push handle is thus designed as a so-called “door handle” or “door handle”. The handle section of the push handle is preferably aligned horizontally in the assembled state, with the door preferably being designed as a pivoting or wing door. Alternatively, however, a vertical orientation of the handle section is also conceivable. To open or close the door with your forearm, this is applied to the forearm operating section and to the handle section, whereby an actuating force for releasing the locking mechanism, in particular a latch bolt, can be transmitted via the handle section and a tensile force can be transmitted to the door via the forearm operating section is. The push handle of the retrofit kit is preferably mounted on the door or the handle pin instead of a conventional push handle. In particular, the pusher pin extends with its longitudinal extension in the assembly direction, the push handle being placed on the pusher pin for assembly in the assembly direction and being fixed counter to the assembly direction. The handle pin can be an existing handle pin of the door handle arrangement. Alternatively, however, the pusher pin can also be part of the retrofit kit, with the existing pusher pin being replaceable or being replaced by the pusher pin of the retrofit kit. An actuating handle is thus proposed which is characterized by simple assembly on lockable doors. In addition, the door handle no longer has to be gripped to operate the door.

In a further specification, it is provided that the retrofit kit has an adapter element for connecting the mounting section to the latch pin. In particular, the retrofit kit can include different adapter elements for different types of latch pins. On one side, the adapter element has a first connection interface, which is designed and/or suitable for connecting the adapter element to the mounting section. In particular, the adapter element is and/or can be connected to the mounting section via the first connection interface in a form-fitting and/or non-positive and/or material connection, but preferably in a rotationally fixed manner. In particular, the different adapter elements all have the same connection interface for connecting the actuating handle, so that the actuating handle of the retrofit kit for different handle pins or door systems is always designed unchanged or as an identical part. In addition, the adapter element has a second connection interface on the other side, which is designed and/or suitable for connecting the adapter element to the handle pin. In particular, the adapter element is and/or can be connected to the pusher pin via the second connection interface in a positive and/or non-positive and/or material connection. In particular, the pusher pin can be designed as a cylindrical bolt, a square or the like, with the second connection interface correspondingly forming a complementary receptacle for the pusher pin. A retrofit kit is thus proposed which is characterized by a particularly cost-effective design, since exactly one actuating handle can be mounted on different door handle arrangements or locking mechanisms by means of different adapter elements.

In a further constructive realization it is provided that the assembly section has an adapter receptacle which is designed and/or suitable for receiving the adapter element, the adapter element being received in the adapter receptacle in a rotationally fixed manner via the first connection interface. In particular, the adapter element with the first connection interface is accommodated or inserted in a form-fitting manner in the adapter receptacle, preferably for the transmission of compressive forces or torques to the pusher pin. The first connection interface preferably has a form-fitting contour and the adapter receptacle has a corresponding form-fitting counter-con ture which are positively engaged with one another at least in a direction of rotation directed around the direction of assembly. During assembly, the adapter element is preferably first pre-assembled on the pusher pin in the assembly direction and then the actuating handle is assembled on the adapter element in the assembly direction. An actuating handle is thus proposed which is characterized by particularly simple and quick assembly.

In a further specification, it is provided that the retrofit kit has a securing means which is designed and/or suitable for axially securing the actuating handle on the handle pin. The securing means can be in the form of a screw means, e.g. a grub screw or threaded pin, or a tensioning means, e.g. The assembly section and the adapter element each have a radial bore and the pusher pin has a securing contour, the securing means being guided through the radial bores of the assembly section and the adapter element in an assembled state and being in engagement with the securing contour. Designed as a screw means, the radial bore of the mounting section or of the adapter element can be designed as a threaded bore, so that the screw can be screwed in via the threaded bore. Designed as clamping means, the radial bores of the mounting section and of the adapter element can each be designed as through-holes, so that the clamping means can be pushed in via the through-holes. In particular, at least the adapter element and the mounting section or the first connection interface and the adapter receptacle can be connected to one another in only one orientation, in which the radial bores are oriented congruently and/or aligned with one another. For example, the securing contour is designed as a recess, groove, indentation, borehole or the like made in the pusher pin, into which the securing means engages at least in sections. In particular, the securing means is screwed in or inserted from the outside via the radial bores when the actuating handle is in the assembled state, so that the securing means engages in the securing contour of the pusher pin and the actuating handle is secured counter to the assembly direction. A retrofit kit is therefore proposed which is characterized by a conventional and simple assembly of the actuating handle.

In a further implementation, the retrofit kit has at least one transmission element which is designed and/or suitable for power transmission, in particular for transmitting the actuating force to the locking mechanism and/or for forming an end stop, in particular in the direction of rotation. In particular, in one embodiment of the pusher pin, the transmission element serves as a cylinder bolt for power transmission to the locking mechanism, since no torques can be transmitted via the cylinder bolt itself. For this purpose, the transmission element is in particular firmly connected to the mounting section on the one hand and is operatively connected to the locking mechanism on the other hand. Alternatively or optionally in addition, the transmission element is guided in a connecting link to form the end stop, so that a mechanical end stop is implemented by the transmission element, in particular when the actuating handle is pressed. For example, the transmission element can be designed as a bolt, cylinder pin or grooved pin. The assembly section has at least one transmission receptacle which is designed and/or suitable for receiving the transmission element. The transmission element is preferably held in the transmission receptacle in a form-fitting and/or force-fitting and/or material-fitting manner. The transfer receptacle is particularly preferably designed as an opening, in particular a bore, running in the assembly direction and/or parallel to the adapter receptacle. In particular, the assembly section has two separate transmission mounts, with one of the transmission mounts being able to be optionally provided with the corresponding associated transmission element, depending on the design of the locking mechanism or the handle pin. An actuating handle is thus proposed which is prepared accordingly for different door handle arrangements or door systems, so that the actuating handle can be easily adapted to a large number of different door systems or locking mechanisms.

In a further development, it is provided that the actuating handle has an end section adjoining the handle section at an angle. In particular, the end section is designed as a right-angled curved and/or angled end of the handle section, which is preferably aligned in the assembly direction and/or in the direction of the door leaf . The end section and the mounting section are in the same direction as one another and each define a support surface for the forearm. The pressure grip can thus be actuated by placing the forearm on the support surfaces and exerting an actuating force on the end section. The handle section preferably has an extended lever arm compared to the actuation handle that is installed as standard, so that the actuation force to be applied is reduced. This can in particular make it easier for people with restricted mobility to open the door. In addition, the support surfaces defined by the mounting section and the end section can provide a stable support for the forearm be implemented on the actuating handle, so that a particularly comfortable actuation of the push handle is implemented.

In a further embodiment of the invention, it is provided that the retrofit kit has a further actuating handle, with the actuating handle and the further actuating handle being designed as identical parts. One operating handle preferably forms an inside handle and the other operating handle forms an outside handle. Each retrofit kit can be used for different door handle arrangements, with the two actuating handles being able to be installed in the same way. The actuating handles are preferably made in one piece, preferably from a single cast. A cost-effective retrofit kit is thus proposed, since the production costs for the actuating handles can be significantly reduced by using identical parts.

Optionally, in addition, the retrofit kit can have at least one locking element for hands-free locking and unlocking of the door, in particular for hands-free actuation of a locking mechanism of the door. The locking element preferably has a shape and/or dimensioning that is characterized by being operated both by hand and by forearm. For example, the locking element is designed as a cylindrical handle which can be and/or is connected to a displaceable locking bolt. In particular, the locking element can be and/or is connected to the locking bolt and/or the existing handle in a form-fitting, force-fitting and/or materially locking manner.

Another subject matter of the invention relates to a door handle arrangement for a door in an aircraft, the door handle arrangement having at least one operating handle, the operating handle having a mounting section for mounting the operating handle on the door, a handle section for opening and/or closing the door by hand and a Forearm operating section for opening and/or closing the door by forearm, wherein the handle section is connected to the mounting section and wherein the forearm operating section is connected upwards to the handle section and/or the mounting section in a mounted state. Preferably, the door handle assembly includes the retrofit kit. The actuating handle is particularly preferably designed as described above. In particular, an operating handle of the door handle arrangement is replaced by the operating handle of the retrofit kit. Optionally, a handle pin of the door handle arrangement can be replaced by a handle pin of the retrofit kit. The retrofit kit can optionally additionally have a cover element, in particular a cover plate or a cover panel, with a cover element of the door handle arrangement being replaced by the cover element of the retrofit kit or the door handle arrangement being supplemented by the cover element of the retrofit kit. Optionally, the retrofit kit can have at least one locking element for hands-free locking and unlocking of the door, with at least one locking element of a locking mechanism of the door handle arrangement being replaced and/or lengthened by the locking element of the retrofit kit.

Another subject matter of the invention relates to a method for retrofitting a door handle arrangement of a door in an aircraft with the retrofit kit, as has already been described above. For this purpose, the actuating handle of the door handle arrangement is removed and replaced by an actuating handle of the retrofit kit, with the actuating handle of the retrofit kit being mounted on the door via the mounting section. In an embodiment of the actuating handle as a door handle, the door handle that is installed as standard is dismantled and the door handle of the retrofit kit is mounted, preferably screwed on, instead of the door handle of the door handle arrangement. Alternatively, the door handle that is installed as standard can remain in place, with the door handle of the retrofit kit being mounted, preferably glued, to the existing door handle. In an embodiment of the actuating handle as a push handle, the at least one door handle that is installed as standard is dismantled and replaced by a push handle of the retrofit kit. In principle, the actuating handle of the retrofit kit can be mounted directly on an existing handle pin of the door handle arrangement if the mounting section and the handle pin are designed to complement one another. Usually, however, the pusher pin is replaced by a pusher pin of the retrofit kit, with the actuating handle being mounted either directly or via the adapter element on the pusher pin of the retrofit kit.

• 1 eine Detailansicht einer Tür für ein Flugzeug mit einer Türgriffanordnung als erstes Ausführungsbeispiel der Erfindung;
• 2 die Tür in gleicher Darstellung wie 1 mit einer alternativen Türgriffanordnung als zweites Ausführungsbeispiel der Erfindung;
• 3 eine dreidimensionale Darstellung eines Nachrüstsatzes für die Türgriffanordnung der 1;
• 4 eine dreidimensionale Darstellung des Nachrüstsatzes gemäß 3 von hinten;
• 5 eine dreidimensionale Darstellung eines alternativen Nachrüstsatzes für die Türgriffanordnung der 1;
• 6 eine dreidimensionale Darstellung des Nachrüstsatzes gemäß 3 in einer Montagesituation;
• 7 eine Explosionsdarstellung eines Nachrüstsatzes für die Türgriffanordnung der 2;
• 8 eine dreidimensionale Darstellung des Nachrüstsatzes gemäß 7 in einem Montagezustand;
• 9 in gleicher Darstellung wie 7 eine alternative Ausführung des Nachrüstsatzes;
• 10 in gleicher Darstellung wie 8 den Nachrüstsatz gemäß 9;
• 11 in gleicher Darstellung wie 7 und 9 eine weitere alternative Ausführung des Nachrüstsatzes;
• 12 in gleicher Darstellung wie 8 und 10 den Nachrüstsatz gemäß 11;
• 13 in gleicher Darstellung wie 1 eine herkömmliche Türgriffanordnung;
• 14 in gleicher Darstellung wie 13 die Türgriffanordnung in einer weiteren alternativen Ausführung.

Further features, effects and advantages of the invention result from the following description of a preferred exemplary embodiment of the invention and the attached figures. show:

• 1 a detailed view of a door for an aircraft with a door handle assembly as a first embodiment of the invention;
• 2 the door in the same representation as 1 with an alternative door handle arrangement as a second embodiment of the invention;
• 3 a three-dimensional representation of a retrofit kit for the door handle assembly 1 ;
• 4 a three-dimensional representation of the retrofit kit according to 3 from behind;
• 5 a three-dimensional representation of an alternative retrofit kit for the door handle assembly of 1 ;
• 6 a three-dimensional representation of the retrofit kit according to 3 in an assembly situation;
• 7 an exploded view of a retrofit kit for the door handle assembly 2 ;
• 8th a three-dimensional representation of the retrofit kit according to 7 in an assembled state;
• 9 in the same representation as 7 an alternative version of the retrofit kit;
• 10 in the same representation as 8th according to the retrofit kit 9 ;
• 11 in the same representation as 7 and 9 another alternative embodiment of the retrofit kit;
• 12 in the same representation as 8th and 10 according to the retrofit kit 11 ;
• 13 in the same representation as 1 a conventional door handle assembly;
• 14 in the same representation as 13 the door handle assembly in a further alternative embodiment.

the 1 and 2 each show a door 1 for an aircraft with a door handle arrangement 2 as two different exemplary embodiments of the invention. The door 1 can be any door in an aircraft that has a corresponding door handle arrangement 2 for opening and closing the door 1 . For example, the door 1 can be designed as a pivotable or foldable door of an aircraft toilet.

The door handle arrangement 1 is retrofitted with an operating handle 3 of a retrofit kit 4 or alternatively equipped as standard with the operating handle 3, the operating handle 3 for operating the door 1 being fixed, in particular designed as a door handle 5, or pivoting, in particular designed as a push handle 6, on the door 1 is mounted. The retrofitted actuating handle 3 is characterized by the fact that it can be operated with the forearm, which is described in the following figures.

3 shows the retrofit kit 4 with the actuating handle 3 designed as a door handle 5 in an assembled state according to FIG 1 . The actuating handle 3 has two mounting sections 7 , 8 , a handle section 9 and a forearm operating section 10 . The handle section 9 is used to operate the door 1 by hand and the forearm operating section 10 is used to operate the door 1 with the forearm.

The handle section 9 extends in a gripping direction GR1 between the two attachment sections 7, 8, with the forearm operating section 10 adjoining the mounting section 8 in a further gripping direction GR2, which is opposite to the gripping direction GR1. The actuating handle 3 is fastened to the door 1 in a mounting direction MR via the two mounting sections 7 , 8 , the two mounting sections 7 , 8 defining a common mounting plane ME which extends parallel to a door leaf of the door 1 . The mounting direction MR is to be understood as a directional vector directed perpendicularly to the mounting plane MR, with the gripping direction GR1 and the further gripping direction GR2 each being to be understood as directional vectors parallel to the mounting plane ME and/or perpendicular to the mounting direction MR.

In an assembled state, the handle section 9 is thus assembled on the door 1 in a vertical orientation. The handle section 9 is offset outwards relative to the assembly sections 7, 8, so that the handle section 9 is arranged at a distance parallel to the assembly plane ME. The handle section 9 can thus easily be gripped by the user and a force, in particular a tensile force, can be applied to open or close the door 1 .

The forearm operating section 10 extends upwards with a curve from the fastening section 7 so that the forearm operating section 10 is arranged at a distance A from the mounting plane ME or the door 1 or runs away from the mounting plane ME or the door 1 . The distance A is dimensioned in such a way that a user's forearm has sufficient space between the forearm section 10 and the door 1 . To open or close the door 1, the user can place his forearm between the door 1 and the forearm section 10 against the forearm section 10, with a tensile force being transmitted to the door 1 via the forearm section 10 and a compressive force being transmitted to the door 1 via the door leaf. The door 1 can thus be operated without using the hand, as a result of which the door 1 can be operated in a particularly hygienic manner.

4 shows the retrofit kit 4 of the 3 in a Monday state from behind. The two assembly sections 7, 8 each have a screw means receptacle 11, which is used to hold a screw means, not shown. For installation, the standard door handle is removed and replaced with the door handle 5 of the retrofit kit 4 replaced, the door handle 5 being screwed firmly to the door 1 via the screw means.

5 shows an alternative retrofit kit 4 with the actuating handle 3 configured as a door handle 5 in a perspective view from the rear. The door handle 5 is identical to that in FIG 3 described embodiment, wherein the door handle 5 has a negative contour 12 on the back instead of the screw means receptacles 11 , which serves to receive an existing door handle 29 in a form-fitting manner. The negative contour 12 is formed by a recess formed on the two fastening sections 7, 8 and the handle section 9, in which the existing door handle 29 is received completely or at least partially countersunk in an assembled state. For example, the existing door handle 29 can be glued into the negative contour 12 .

7 shows a first embodiment of the retrofit kit 4 for the actuating handle 3 designed as a push handle 6 in an exploded view. The retrofit kit 4 comprises two actuating handles 3 designed as push handles 6, one actuating handle 3 being designed as an inside handle and the other actuating handle 3 being designed as an outside handle.

The actuating handles 3 each have a mounting section 7 for mounting the actuating handle 3 in a mounting direction MR on a pusher pin of a locking mechanism, not shown. The assembly sections 7 each define an assembly plane ME running parallel to the door 1 or a door leaf, the assembly direction MR being to be understood as a directional vector oriented perpendicularly to the assembly plane ME. The mounting section 7 extends in the mounting direction MR, with the mounting section 7 being followed by a handle section 9 in a grip direction GR1 and a forearm section 10 in a further grip direction GR2.

In an assembled state, as in 8th As shown, the handle portions 9 are mounted on the door 1 in a horizontal orientation. The handle sections 9 adjoin the mounting section 7 at right angles, so that the handle sections 9 are spaced parallel to the mounting plane ME. To open and close the door, the handle portion 9 is gripped and pushed down to operate the locking mechanism. In this case, the handle section 9 has a longer lever arm than a conventional actuating handle, as a result of which the manual force required for opening is reduced and a corresponding PRM functionality (“Persons with Reduced Mobility (PRM)”) is implemented.

Furthermore, the handle section 9 is adjoined at the end by an end section 13 which extends in the same direction as the mounting section 7 in the mounting direction MR. The end section 13 and the mounting section 7 each provide a support surface 14 which serves to support the forearm.

The forearm operating section 10 extends upwards straight or with a slight curve from the attachment section 7 so that the forearm operating section 10 is arranged at a distance A from the mounting plane ME or the door 1 or runs away from the mounting plane ME or the door 1 . In particular, the assembly direction MR and the two gripping directions GR1, GR2 are to be understood as three directional vectors perpendicular to one another. The distance A is dimensioned in such a way that a user's forearm has sufficient space between the forearm section 10 and the door 1 . To open or close the door 1, the user can place his forearm between the door 1 and the forearm section 10 on the support surfaces 14, with an actuating force on the end section 13 on the locking mechanism and a tensile force on the forearm section 10 or a compressive force is transmitted to door 1 via the door leaf. The door 1 can thus be operated without using the hand, so that the door 1 can be operated particularly hygienically.

The retrofit kit 4 also has a handle pin 15 which can be used instead of a handle pin of the door handle arrangement 2 . In this embodiment, the pusher pin 15 is designed as a cylindrical pin, which can be connected to one of the actuating handles 3 at each end. For this purpose, the retrofit kit 4 has an adapter element 16 in each case, with the adapter element 16 having a first connection interface 17a for connection to the actuating handle 3 and a second connection interface 17b for connection to the handle pin 15 . The adapter element 16 is embodied as a hollow-cylindrical component, with the first connection interface 17a being embodied on the outside and the second connection interface 17b being embodied on the inside. In this case, the second connection interface 17b forms a receptacle which is complementary to the pusher pin 15 and in which the pusher pin 15 is received with an axial end in a form-fitting manner. The assembly section 7 has a corresponding adapter receptacle 18 in which the adapter element 16 is accommodated with the first connection interface 17a in a form-fitting manner, in particular in a rotationally fixed manner. The first connection interface 17a has a form-fitting contour, for example in the form of a flattened cylinder, and the adapter receptacle 18 has a complementary counter-contour, which with the form-fitting contour is positively engaged.

In order to axially secure the operating handles 3 on the handle pin 15, the retrofit kit 4 has a securing device 19 in each case, with the mounting sections 7 of the two operating handles 3 and the two adapter elements 16 each having a radial bore 20, via which the securing device 19 can be connected to a locking device on the handle pin 15 arranged securing contour 21 can be engaged. In this exemplary embodiment, the securing contour 21 is designed in each case as a circumferential groove. For example, the sighting means 19 is in the form of a grub screw or a threaded pin, with the radial bores 20 of the mounting section 7 being in the form of threaded bores for this purpose, into which the securing means 19 can be screwed.

In addition, the retrofit kit 4 has a transmission element 22, which is used to transmit the actuating force to the locking mechanism when the push pin 15 is cylindrical. The two assembly sections 7 each have a transmission receptacle 23, with the transmission element 22 being arranged with one axial end in the respective associated transmission receptacle 23. The transmission element 22 is designed as a driving pin, with the transmission receptacle 23 being designed accordingly as a cylindrical blind hole. The mounting sections 7 each have a further transmission receptacle 24 which is introduced into the mounting section 7 parallel to the transmission receptacle 23 . Depending on the configuration of the locking mechanism, one of the transmission receptacles 23 can optionally be equipped with a correspondingly associated transmission element 22, as described in the following figures.

To assemble the retrofit kit 4, the standard built-in pressure handles of the door handle arrangement 2 and the corresponding components of the locking mechanism are dismantled in a first step. The handle pin 15 and the transmission element 22 of the retrofit kit 4 are then installed in the locking mechanism. In a further step, the actuating handles 3 are mounted in the mounting direction MR at the ends on the transmission element 22 and via the adapter elements 16 on the end on the pusher pin 15 . In a further step, the securing means 19 are screwed in via the radial bores 20 until the securing means 19 engages in the securing contour 21 and the actuating handles 3 are secured counter to the assembly direction MR.

the 9 and 10 show in the same representation as the 7 and 8th an alternative embodiment of the retrofit kit 4. The actuating handles 3 are designed as identical parts, so that they can be used in the same form. Since the function and the assembly of the retrofit kit 4 is comparable to that in the 7 and 8th are described, only the relevant differences will be discussed below. In this embodiment, the pusher pin 15 is designed as a square pin, with the second connection interface 17b of the two adapter elements 16 being designed as a complementary receptacle for positively locking, in particular non-rotatably receiving the pusher pin 15 . The securing contour 21 is designed as a recess or groove which, in an assembled state, is introduced congruently with the radial bores 20 on a flat side of the pusher pin 15 .

Instead of the one transmission element 23 for power transmission to the locking mechanism, the retrofit kit 4 has two of the transmission elements 22, one transmission element 22 being accommodated in the further transmission receptacle 24 of one actuating handle 3 and the other transmission element 22 in the further transmission receptacle 24 of the other actuating handle 3 . For example, the two transmission elements 23 are used to form a mechanical end stop. The transmission elements 22 can be designed, for example, as cylindrical or grooved pins.

Furthermore, the retrofit kit 4 has two spacer rings 25, one spacer ring 25 each being placed on an adapter element 16. For this purpose, the adapter element 16 has a cylindrical projection which is offset from the first connection interface 17a. During assembly, the spacer ring 25 is mounted together with the adapter element 16 on the handle pin 15, with the spacer ring 25 being arranged between the respective operating handle 3 and the door 1 or the locking mechanism.

the 11 and 12 show in the same representation as the 7 until 10 Another alternative embodiment of the retrofit kit 4. The actuating handles 3 are also designed as identical parts, so that they can be used in the same way in each of the previously described retrofit kits 4 of the 7 until 10 can be used. Since the function and the assembly of the retrofit kit 4 is comparable to that in the 7 until 10 are described, only the relevant differences will be discussed below. The handle pin 15 is also designed as a square pin in this embodiment, the securing contours 21 are each formed by flattened areas which, in an assembled state, are arranged congruently with the radial bores 20 on an edge of the pusher pin 15 .

Furthermore, the retrofit kit 4 has a cover element 26 on each side, each of which serves to cover the door 1 in the area of the locking mechanism. The cover elements 26 are each formed, for example, as a cover plate or panel. The two cover elements 26 each have a through-opening 27 for the pusher pin 15 to pass through. In an assembled state, the cover elements 26 are each in contact with the door leaf, with the cover elements 26 being held in a form-fitting manner between the assembly section 7 and the door 1 in the assembly direction MR. The cover element 26 is optionally screwed onto the door 1 .

Furthermore, the cover element 26 has a guide slot 28 for guiding the transmission element 22 of the respective actuating handle 3 facing it. The guide link 28 can form the end stop in a direction of rotation for the transmission element 22 when the push handle 6 is pressed down for actuation.

Through the proposed retrofit kits 4 of 1 until 12 the forearm can be placed in or on the door handle 5 or the push handle 6, whereby the door 1 can be opened with the help of arm strength. Thus, the door 1 can be easily opened and closed without using the hand. In addition, the operating handle 3 can still be operated manually via the handle section 9 . Furthermore, the actuating handle 3 has a design which is similar to a conventional actuating handle 3 and is not perceived as annoying by the user. By designing the push handles 6 as identical parts, different retrofit kits for different door and aircraft types can be offered particularly inexpensively.

the 13 and 14 show in the same representation as the 1 , the door 1 with the door handle arrangement 2. Wherein is in 13 a conventional door for an aircraft is shown, which is equipped with a standard built-in door handle 29 for opening and closing the door 1 and a standard built-in locking mechanism 30 for locking and unlocking the door 1. The locking mechanism 30 has a displaceable locking bolt 31 which can be displaced by hand via a handle 32 between a locking position P1 and an unlocking position P2. The door handle 29 and the locking mechanism 30 can therefore only be actuated by hand.

In the 14 The door handle arrangement 2 shown is equipped with the door handle 5, which is characterized by being able to be operated under the arm, as already described above. For this purpose, the door handle 5 has the forearm operating section 10 as well as another forearm operating section 34 which connects downwards on an opposite side in the handle direction GR1 to the further mounting section 8 or the handle section 9 .

The locking mechanism 30 has a locking element 33 which is set up for locking and unlocking the door 1 without hands. The locking element 33 is either mounted instead of the grip 32 or mounted on the grip 32 as an extension. The locking element 33 is distinguished from the conventional handle by a significantly longer and more solid structure, so that the locking element 33 can also be easily operated with the forearm or moved between the locking and the unlocking position P1, P2. For example, the locking element 33 has a length and/or a diameter which is e.g. more than 30%, preferably more than 50%, in particular more than 100% than a length or diameter of the handle 32 installed as standard. The locking element 33 is designed, for example, as a cylindrical handle, which can be firmly connected to the locking bolt 31 by a screw and/or adhesive connection.

Reference List

1

door

2

door handle assembly

3

operating handle

4

retrofit kit

5

door handle

6

pressure grip

7

assembly section

8th

further assembly section

9

handle section

10

forearm operating section

11

screw mount

12

negative contour

13

end section

14

support surface

15

push pin

16

adapter elements

17a, b

connection sections

18

adapter mount

19

collateral

20

radial bore

21

backup contour

22

transmission element(s)

23

transmission recording

24

further transmission recording

25

spacer ring

26

cover elements

27

passage opening

28

leadership backdrop

29

door handle

30

locking mechanism

31

locking bolt

32

handle

33

locking element

34

another forearm operating section

A

distance

GR1

grip direction

GR2

further grip direction

ME

mounting level

MR

mounting direction

P1

locking position

p2

unlocking position

Claims (15)

Retrofit kit (4) for retrofitting a door handle arrangement (2) for a door (1) in an aircraft, with at least one actuating handle (3) for actuating the door (1), wherein the actuating handle (3) has a mounting section (7) for mounting the actuating handle (3) on the door (1), wherein the actuating handle (3) has a handle section (9) for opening and/or closing the door (1) by hand, the handle section (9) adjoining the mounting section (7), wherein the actuating handle (3) has a forearm operating section (10) for opening and/or closing the door (1) with the forearm, the forearm operating section (10) extending upwards to the handle section (9) and/or when the operating handle (3) is in a mounted state or connecting the mounting section (7). Retrofit kit (4) after claim 1 , characterized in that the assembly section (7) defines an assembly plane (ME), wherein in an assembled state the forearm operating section (10) extends upwards at a distance (A) from the assembly plane (ME ) extends. Retrofit kit (4) after claim 2 , characterized in that when the handle section (9) is in a vertical orientation, the forearm operating section (10) extends upwards on one side away from the mounting section (7) and the handle section (9) extends downwards on an opposite side from the mounting section ( 7) extends away. Retrofit kit (4) after claim 2 characterized in that the forearm operating section (10) extends upwards away from the mounting section (7) when the handle section (9) is in a horizontal orientation and the handle section (9) extends sideways away from the mounting section (7). Retrofit kit (4) according to one of the preceding claims, characterized in that the actuating handle (3) is designed as a door handle (5), the actuating handle (3) being able to be firmly connected to the door (1) via the at least one mounting section (7). is. Retrofit kit (4) after claim 5 , characterized in that the door handle (5) has a further mounting section (8) for mounting the actuating handle (3) on the door (1), the handle section (9) extending between the two mounting sections (8). Retrofit kit (4) after one of Claims 1 until 4 , characterized in that the actuating handle (3) is designed as a push handle (6) for actuating a locking mechanism of the door handle arrangement (2), the mounting section (7) being designed for mounting on a handle pin (15). Retrofit kit (4) after claim 7 , characterized by an adapter element (16) for connecting the mounting section (7) to the handle pin (15), the adapter element (16) having a first connection interface (17a) on one side for connecting the adapter element (16) to the mounting section (7 ) and on the other side a second connection interface (17b) to Connection of the adapter element (16) to the handle pin (15). Retrofit kit (4) after claim 8 , characterized in that the mounting section (7) has an adapter receptacle (18) for receiving the adapter element (16), the adapter element (16) being non-rotatably received in the adapter receptacle (18) via the first connection interface (17a). Retrofit kit (4) after claim 8 or 9 , characterized by a securing means (19) for axially securing the actuating handle (3) on the pusher pin (15), the mounting section (7) and the adapter element (16) each having a radial bore (20) and the pusher pin (15) having a Having a securing contour (21), the securing means (19) being guided through the radial bores (20) of the mounting section (7) and the adapter element (16) in an assembled state and being in engagement with the securing contour (21). Retrofit kit (4) after one of Claims 7 until 10 , characterized by at least one transmission element (22) for transmitting an actuating force to the locking mechanism and/or for forming an end stop, the mounting section (7) having at least one transmission receptacle (23, 24) for receiving the transmission element (22). Retrofit kit (4) after one of Claims 7 until 11 , characterized in that the actuating handle (3) has an end section (13) adjoining the handle section (9) at an angle, the end section (13) and the mounting section (7) being aligned with one another and each having a support surface (14) for the Define forearm. Retrofit kit (4) according to one of the preceding claims, characterized by a further operating handle (3), the operating handle (3) and the further operating handle (3) being designed as identical parts. Door handle arrangement (2) for a door (1) in an aircraft, the door handle arrangement (2) having at least one operating handle (3) for operating the door (1), the operating handle (3) having a mounting section (7) for mounting the operating handle (3) on the door (1), a handle section (9) for opening and/or closing the door (1) by hand and a forearm operating section (10) for opening and/or closing the door with the forearm, the handle section (9) adjoining the mounting section (7) and wherein the forearm operating section (10) in an assembled state adjoins the handle section (9) and/or the mounting section (7) upwards. Method for retrofitting a door handle arrangement (2) of a door (1) in an aircraft with a retrofit kit (4), the door handle arrangement (2) having an operating handle for operating the door (1), according to one of Claims 1 until 12 , characterized by the steps of: - removing the operating handle of the door handle assembly (2); - Replacing the operating handle of the door handle assembly (2) with an operating handle (3) of the retrofit kit (4), the operating handle (3) of the retrofit kit (4) being mounted on the door (1) via the mounting section (7).

Images