Door leaf of a door
The door frame design addresses thermal expansion and integrates functional components within the frame, maintaining aesthetics and functionality by using a relative movement connection between inner and outer profiles, enhancing thermal insulation and soundproofing.
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2014-04-15
- Publication Date
- 2026-03-26
AI Technical Summary
Existing door frames do not effectively integrate functional components while maintaining aesthetic appeal and addressing thermal expansion issues due to differing temperatures on either side of the door.
A door frame design with inner and outer profiles connected in a force-fit or form-fit manner allowing relative movement along the longitudinal axis, incorporating a clip connection or tongue-and-groove mechanism to decouple thermal expansion effects, and integrating functional elements like sensors and actuators within the frame.
The design minimizes thermal deformation and enhances functionality by allowing for the integration of components like temperature sensors, microphones, and security features without compromising the frame's appearance, while providing improved thermal insulation and soundproofing.
Smart Images

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Abstract
Description
[0001] The invention relates to a door leaf of a door with a frame having at least two frame elements, to which at least one cover layer is assigned, wherein at least one of the frame elements is assigned a functional carrier arranged within the frame and substantially covered by the cover layer, wherein each of the frame elements comprises an inner profile oriented towards a room side and an outer profile oriented towards an outside, wherein the inner profile is connected to the outer profile in such a force-fit or form-fit manner that the inner profile is displaceable relative to the outer profile in the direction of a longitudinal axis, wherein a clip connection displaceable in the direction of the longitudinal axis is provided between the inner profile and the outer profile.
[0002] Such a door leaf is known from the generic DE 20 2011 000 669 U1.
[0003] In practice, frames for doors and windows are known to accommodate any type of infill. These frames can be designed as sash frames and can be hinged or fixed. If the frame has an opaque infill in a building wall, particularly an exterior wall, the infill often contains an insulating layer. The frame supports an inner and / or outer covering layer, which is either positioned between the frame components or overlaps them. This covering layer can be designed to be functionally and / or aesthetically pleasing, for example, by covering the infill.
[0004] DE 295 05 223 U1, DE 525 520 A, GB 2 343 476 A and EP 2 241 713 A2 each disclose a frame for doors with at least two frame elements to which at least one cover layer is assigned, wherein at least one of the frame elements is assigned a functional carrier arranged within a frame and covered in substantial parts by the at least one cover layer.
[0005] Furthermore, EP 2 241 713 A2 and DE 20 2011 000 669 U1 each additionally disclose that each of the frame elements comprises an inner profile oriented towards a room side and an outer profile oriented towards an outside, wherein the inner profile is positively connected to the outer profile in such a way that the inner profile is displaceable relative to the outer profile in the direction of a longitudinal axis.
[0006] The invention is based on the objective of creating a door leaf of the type mentioned above which has additional functionalities.
[0007] According to the invention, the problem is solved by the features of claim 1.
[0008] The dependent claims represent advantageous embodiments of the invention.
[0009] A door or window frame comprises at least two frame elements, each with at least one cover layer. At least one of the frame elements has a functional component arranged within the frame and substantially covered by the cover layer.
[0010] The frame is primarily used as a wing frame for a door, especially a front door or apartment entrance door.
[0011] The functional element can, for example, have its own function or serve as a bracket or fastening device for additional components. Since the functional element is located within the frame and largely concealed by the infill, it does not detract from the visual appearance of the door or window as perceived by an observer. The functional element can, for example, provide frame stiffening or support a device for observing the surroundings. Further preferred embodiments are described below. Naturally, the cover layer can be transparent or translucent in certain areas and opaque in others. It is also conceivable to design the entire cover layer to be transparent, translucent, or opaque.Similarly, in areas where optical functional elements are arranged, the filling is either cut out or made transparent so that the optically effective functional element can have its intended effect.
[0012] Furthermore, according to the invention, each of the frame elements comprises an inner profile oriented towards a room side and an outer profile oriented towards an outside, wherein the inner profile is connected to the outer profile in such a force-fit or form-fit manner that the inner profile is displaceable relative to the outer profile in the direction of a longitudinal axis. Since the connection between the outer profile and the inner profile allows relative movement in the direction of the longitudinal axis exhibiting the greatest changes in length of the two profiles, the inner profile is decoupled from the outer profile, thereby avoiding or significantly reducing stresses due to thermally induced changes in length and the associated deformations.
[0013] Furthermore, a clip connection, movable along the longitudinal axis, is provided between the inner and outer profiles. The outer profile has two spaced-apart clip arms that interact with undercuts in the inner profile. The inner profile is designed as a rectangular hollow chamber profile with undercuts on one of its broad sides. The outer and inner profiles can be manufactured from, for example, an aluminum alloy or a plastic using a drawing or extrusion process. Since the uniaxial decoupling (i.e., the ability to move along the longitudinal axis) means that the similarity of the coefficients of thermal expansion is only of minor importance, it is possible, for example, to manufacture the inner profile from an aluminum alloy and the outer profile from a plastic, or vice versa.The undercuts can essentially be integrated into the inner profile as a kind of clip nose or be designed as counter-clip arms that extend away from the inner profile.
[0014] The outer profile is designed as an L-shaped hollow chamber profile in cross-section and features spaced-apart clip arms on its longer leg. The outer profile is positioned such that the free end face of its shorter leg faces outwards, and the longer leg is aligned parallel to the inner profile. Consequently, the outward-facing surface of the shorter leg is relatively small, which has a positive effect on heat transfer, while the outward-facing surface of the longer leg, opposite the surface with the clip arms, can, for example, serve as a support for a layer of thermal insulation.
[0015] Preferably, the functional element is fixed to the long leg of the outer profile. The functional element can be screwed, riveted, glued, or similarly connected to the outer profile in a force-fit or form-fit manner.
[0016] Furthermore, the outer profile has a receiving groove in its short leg for a clamping strip to fix the functional element to the long leg. The clamping strip can be a glass retaining strip known from the prior art or another type of holder that fixes the functional element to the long leg of the outer profile.
[0017] In this embodiment, the functional element spans at least the inner surface formed by the frame, or is attached to one of the frame elements like a tab, or arranged like a bar between two frame elements. The size of the functional element is limited only by the size of the frame and is dimensioned to be at least large enough to reliably attach a functional element to be arranged within the frame, such as a temperature sensor, a microphone, or the like. Furthermore, the functional element can be fixed to frame-side retaining strips or mounting flanges or tabs by means of a force-fit, positive-locking, and / or material-locking connection.
[0018] Preferably, the functional element is designed to store heat or cold, or to provide insulation against sound, heat, cold, radiation, and / or pollutants. These functionalities significantly increase the comfort of the residents of an apartment, for example, one enclosed by a suitable door. To implement security-relevant functions, the functional element is preferably resistant to gunfire, burglary, and / or fire. The functional element can be plate-shaped and extend essentially over the entire frame. Naturally, a security-relevant functional element is reliably attached without any gaps between the functional element and the frame to withstand even significant forces. The functional element can be made of plastics, metals, or combinations of these materials.Of course, it can also be useful to arrange several functionaries in parallel within a common framework or in several frameworks.
[0019] In a further embodiment, at least one electrical and / or electromechanical functional element is assigned to the functional carrier. The functional element can, for example, be arranged on the previously described functional carrier itself, naturally also together with other functional elements. The functional element can, for example, be a transmitter communicating with a remote receiver. However, a motor-operated partial opening, such as a ventilation flap or pet door, which opens and closes automatically based on a temperature and / or air quality sensor signal, a transponder signal, or a remote control signal, is also conceivable. In this case, the flap itself can preferably be pivotally mounted on the functional carrier or on a filling or the cover layer, and the associated motor is attached to the functional carrier together with the receiver for the transponder signal.
[0020] Advantageously, in the case of a light-transmitting filling, the functional element is designed as a photovoltaic element coupled to another electrical and / or electromechanical functional element for storing and / or supplying electrical energy. Accordingly, the photovoltaic element can supply voltage to functional elements arranged on the functional carrier, and a supply line or battery is essentially unnecessary.
[0021] To integrate further functionalities into the frame, the functional element is preferably designed as a sensor and / or actuator, in particular as a sensor for an image capture device or a sound capture or playback device, or as a position sensor, a vibration sensor, a fingerprint recognition sensor, or as an actuator for a locking system or a locking device. For example, a fingerprint recognition sensor can be assigned to the functional element, which includes an evaluation unit and a storage unit for fingerprints, and which, upon recognition of a stored fingerprint, actuates an actuator to open a locking device. A motor for pivoting the frame or the door can be provided as the locking system.Naturally, in the area of the image acquisition device, the outer cover layer is either transparent or cut out in such a way that it allows for the recording of the exterior of the image acquisition device, which is preferably directly coupled to the cover layer. For this purpose, the image acquisition device includes a corresponding image sensor, which can be miniaturized and installed with an associated optical system. Similarly, in the area of the fingerprint recognition sensor, it is necessary to design the cover layer appropriately for fingerprint detection.
[0022] In a further embodiment, the functional element is designed as a visually and / or audibly perceptible signaling element and is preferably connected to an alarm system. The signaling element can, for example, be a lighting element or a siren, which is assigned to the functional component and controlled or activated by the alarm system. Thus, for example, in the event of an alarm and with a corresponding design of the signaling element, the entire door leaf can light up.
[0023] The data connection between the sensors / actuators and a computer system is ensured by means of a data transmission device located within the frame. For the evaluation of the sensor signals and / or the control of the actuators, the sensors and / or the actuators are expediently connected to a data processing unit of a home automation system.
[0024] Preferably, the outer profile has at least one convex sealing ridge extending over its entire length on an outer profile end face. The sealing ridge is designed to abut a sealing rubber and can, in particular, comprise two adjacent sealing ridges that, when the frame serving as the sash of a door is installed, extend into a door gap.
[0025] To minimize heat transfer from the outer profile to the inner profile and simultaneously create a relatively small contact area, spacer lugs are preferably arranged between the clip arms. For example, if two rib-shaped spacer lugs are molded onto the outer profile and a rib-like spacer lug molded onto the inner profile is located between these spacer lugs, then the outer profile is secured against lateral displacement relative to the inner profile that does not correspond to the longitudinal direction.
[0026] In this configuration, the inner profile has a projection on its broad side opposite the undercut side, extending beyond an outer profile face. This projection is provided with a groove to hold a seal. The projection forms a kind of rebate molded onto the inner profile. When a seal is installed against a frame, an additional sealing layer is created, improving the thermal transmittance (U-value) and reducing air permeability in the convection zone of the door rebate. A primary seal on the outer side acts between the frame and the door leaf formed by the sash and infill.
[0027] According to an alternative design, at least one tongue-and-groove connection, movable along the longitudinal axis, is provided between the inner and outer profiles. Advantageously, the tongue-and-groove connection has a T-shaped or dovetail cross-section. The T-slot or dovetail connection between the inner and outer profiles also allows for relative movement of these two profiles along the longitudinal axis, thus preventing or significantly reducing undesirable deformation along the length in the event of differing length changes in the two profiles, particularly due to temperature differences between the outer and inner surfaces.
[0028] Since the change in length over the height of the door, which is determined by the length of the longitudinal frame elements, is of particular importance for thermally influenced deformation, the clip connection or the tongue and groove connection is preferably assigned to the longitudinal frame elements.
[0029] It is advantageous to assign one longitudinal frame element to a locking side and the other longitudinal frame element to a hinge side. For example, hinges or locking elements can be attached to the corresponding inner profiles.
[0030] Advantageously, the infill is fixed on the outside and / or inside of the frame elements. On the outside, the infill, or its facing layer, is attached to the free end face of the short leg of the outer profile, so that the heat transfer surface in this area is relatively small. The infill covers the frame, which is therefore not visible to an observer when the door is closed. Consequently, the frame profiles can be made of any material or material combination that does not have a visually disruptive effect.
[0031] It is understood that the features mentioned above and those to be explained below can be used not only in the combinations specified, but also in other combinations. The scope of the invention is defined solely by the claims.
[0032] The invention will be explained in more detail below with reference to several exemplary embodiments and the accompanying drawing.
[0033] It shows: Fig. 1 a sectional view of a hinge side of a frame attached to a jamb according to the invention, Fig. 2 a sectional view of the frame associated with the jamb according to Fig. 1 in an alternative design, Fig. 3 a perspective partial representation of a frame element of the frame according to Fig. 1, Fig. 4 another perspective partial representation of the frame element of the frame according to Fig. 1, Fig. 5 a schematic representation of a door with the frame according to Fig. 1 and, Fig. 6 a schematic representation of a functionary.
[0034] A door 1 comprises a door leaf 2, which is essentially composed of a frame 3 with an associated infill 4, wherein the infill 4 comprises an outer cover layer 5 and an inner cover layer 6, as well as an insulating layer 7 arranged between the cover layers 5 and 6 for thermal insulation. The frame 3 has two longitudinal frame elements 8 and two short-sided frame elements 9, which are each connected at right angles, with one longitudinal frame element 8 being associated with a closing side 10 and the other longitudinal frame element 8 being associated with a hinge side 11 of the door 1. Each of the longitudinal frame elements 8 is composed of an inner profile 12 and an outer profile 13 connected to it in such a way that the inner profile 12 is displaceable relative to the outer profile 13 in the direction of a longitudinal axis according to the double arrow 14.The inner profile 12 on the hinge side 11 is rigidly connected to one end of a hinge 15, the other end of which is coupled to a frame 16, which is essentially composed of an inner frame hollow profile 17 and an outer frame hollow profile 18 with a thermal break profile 19 arranged between them. The inner frame hollow profile 17 is firmly pressed to the break profile 19 and the break profile 19 to the outer frame hollow profile 18.
[0035] To prevent deformation of the door leaf 2 due to relatively large temperature differences between the outside and inside of the door 1, which would result in different thermal expansions of the outer profile 13 and the inner profile 12 of the longitudinal frame elements 8, clip connections 20 are used between the outer profile 13 and the inner profile 12. These connections fix the outer profile 13 relative to the inner profile 12 in two axes and allow movement in one axis as indicated by the double arrow 14. Of course, the clip connections are only exemplary embodiments of such a one-degree-of-freedom connection. It is also possible, for example, to implement a tongue-and-groove connection in a T-shape or dovetail shape, or the like, to achieve the same effect.
[0036] The outer profile 13 is designed as an L-shaped hollow chamber profile with a long leg 21 and a short leg 22 extending at right angles to it. The short leg 22 of the outer profile 13 runs within the frame 16, and its free end face forms a support for the outer cover layer 5 of the infill 4. Furthermore, a sealing curve 47 is associated with the short leg 22. The long leg 21 of the outer profile 13 is aligned parallel to the rectangular hollow chamber profile of the inner profile 12 and is spaced apart from a broad side 24 of the inner profile 12 by means of spacer lugs 23 molded onto the outer profile 13. The broad side 24 of the inner profile 12 facing the outer profile 13 has hook-shaped undercuts 25 that interact with clip arms 26 molded onto the outer profile 13. The hook-shaped undercuts 25 can alternatively be formed in the form of counter-clip arms 27 on the inner profile 12.Furthermore, a spacer cam 29 is located on an outer profile end face 28 of the inner profile 12, which rests against the outer profile 13.
[0037] The broad side 30 of the inner profile 12, opposite the broad side 24 with the undercuts 25, has a projection 31 extending beyond the profile end face 28 on the outside of the frame. This projection forms a rebate with the profile end face 28 and is provided with a groove 33 for retaining an inner seal 32, which rests on the frame 16 when the door 1 is closed. The projection 31 and the corresponding broad side 30 of the inner profile 12 are spanned by the inner cover layer 6. On the outside of the door 1, a circumferential seal 34 is associated with the frame 16. When the door 1 is closed, this seal rests under tension on the outer cover layer 5 of the panel 4.
[0038] If the outside of door 1 is exposed to a relatively high temperature, for example due to direct sunlight, then the outer profile 13, made of an aluminum alloy or plastic, experiences a relatively large thermal expansion in relation to the inner profile 12. In a frame 3 known from the prior art, this deforms with an inward curvature. In the present frame 3, after Fig. 4 a change in length of the outer profile 13 without effect on the change in length or the deformation of the inner profile 12 due to the connection with the degree of freedom in the direction of the longitudinal axis of the frame 3.
[0039] If the temperature on the inside of door 1 is higher than on the outside, as is usually the case in winter, then the outer profile 13 experiences a reduced longitudinal expansion relative to the inner profile 12. With a rigid connection, such as that of a bimetallic strip, this leads to a curvature towards the outside of door 1. Due to the connection with the one degree of freedom along the longitudinal axis of the frame 3, the inner profile 12 shifts relative to the outer profile 13, as shown in Fig. 3 can be seen.
[0040] To assign an additional functionality to the door, a functional carrier 35 is arranged on the long leg 21 of the outer profile 13, which can be screwed or glued to the outer profile 13. It is also possible to additionally or alternatively fix the functional carrier 35 to the long leg 21 of the outer profile 13 by means of a force-fit connection. For this purpose, the outer profile 13 has a receiving groove 36 in its short leg 22 for a clamping strip 37, which acts and is attached in the manner of a glazing bead known from the prior art.
[0041] The functional carrier 35 can, for example, extend over the entire inner surface of the door leaf 2 and have thermally insulating and / or sound-insulating and / or burglar-resistant and / or bulletproof properties. It is additionally or alternatively possible to assign functional elements 38, such as actuators 39, for example, of a locking mechanism, and / or sensors 40, for example, of an image and / or sound detection device, to the functional carrier 35. In particular, the actuators 39 and sensors 40 can be connected wirelessly or via a wired connection to a computer of a data processing device, preferably a home automation system, via a data transmission device 41, using appropriate interfaces, which can also be arranged on the flat functional carrier 35. Naturally, a computer module 45 with a memory module 46 can be assigned to the data transmission device 41.In this case, one of the actuators 39 is designed as a motor 42, which serves to pivot the door 1. Another actuator 39 is a locking motor 43, which interacts with a locking mechanism of the door 1. Furthermore, an image acquisition device 44 is provided as a sensor 40, which interacts with face and / or eye recognition to open the door 1 for an authorized person by controlling the motor 42 and / or the locking motor 43. The image acquisition device 44, which is connected to a display device via the data transmission device 41, can also display the area surrounding the door 1. An image acquisition sensor, to which an optical device, such as a lens or objective, may be assigned, is arranged in a transparent or cut-out area, particularly in the outer cover layer 5.
[0042] A sensor 40, designed as a fingerprint recognition sensor, is also installed in such a way that it is freely accessible, for example, in the outer cover layer 5. To ensure good sound transmission or recording, a microphone is, for example, attached to the functional carrier 35 in an area where the outer cover layer 5 is perforated. The areas of the cover layers 5 and 6 that must have a special functionality for the associated sensors 40 are preferably designed such that this functionality, such as transparency or perforation, is not visually perceptible to an observer or does not have a visually disruptive effect. Reference sign 1 door 2 door leaves 3 frames 4 filling 5 outer top layer 6 inner cover layer 7 Insulation layer 8 longitudinal frame element 9 wide-sided frame element 10 Closing page 11 Band page 12 Inner profile 13 Outer profile 14 Double Arrow Volume 15 16 frame 17 Inner frame hollow profile 18 Outer frame hollow profile 19 Separation profile 20 clip connections 21 long thigh v. 13 22 short thigh v. 13 23 Distance nose 24 broadside of 12 25 Undercut 26 clip arm 27 Counter clip arm 28 Profile front 29 spacer cams 30 broadside of 12 31 continuation 32 Seal 33 Nut 34 Seal 35 functionaries 36 recordings 37 Terminal block 38 Functional element 39 Actuator 40 Sensor 41 Data transmission device 42 Engine 43 Locking motor 44 Image capture device 45 Computer module 46 memory module 47 Sealing Curve
Claims
[1] Door leaf (2) with a frame (3) having at least two frame elements (8, 9) to which at least one cover layer (5, 6) is assigned, wherein at least one of the frame elements (8, 9) is assigned a functional carrier (35) arranged within the frame (3) and substantially covered by the cover layer (5, 6), wherein each of the frame elements (8, 9) comprises an inner profile (12) oriented towards a room side and an outer profile (13) oriented towards an outside, wherein the inner profile (12) is connected to the outer profile (13) in such a force-fit or form-fit manner that the inner profile (12) is displaceable relative to the outer profile (13) in the direction of a longitudinal axis (double arrow 14), wherein a clip connection (20) displaceable in the direction of the longitudinal axis (double arrow 14) is provided between the inner profile (12) and the outer profile (13), characterized by, that the outer profile (13) is designed as an L-shaped hollow chamber profile in cross-section, the long leg (21) of which has clip arms (26) spaced apart from each other on one side and serves as a support for the functional carrier (35) on the opposite side, and the short leg (22) of which is provided with its free end face for fastening an outer cover layer (5), wherein the clip arms (26) cooperate with undercuts (25) of the inner profile (12) designed as a rectangular hollow chamber profile in cross-section, and the outer profile (13) has in its short leg (22) a receiving groove (36) for a clamping strip (37) for fixing the functional carrier (35) on the long leg (21). [2] Door leaf (2) according to claim 1, characterized by, that the functional carrier (35) spans at least one inner surface formed by the frame (3) or is attached in a tab-like manner to one of the frame elements (8, 9) or is arranged in a bar-like manner between two frame elements (8, 9). [3] Door leaf (2) according to claim 1 or 2, characterized by , that the functional carrier (35) is designed to store heat or to provide insulation against sound, heat, radiation, or pollutants. [4] Door leaf (2) according to one of claims 1 to 3, characterized by , that the functionary (35) is trained to be resistant to gunfire and / or burglary and / or fire. [5] Door leaf (2) according to one of claims 1 to 4, characterized by , that the functional carrier (35) is assigned at least one electrical and / or electromechanical functional element (38). [6] Door leaf (2) according to claim 5, characterized by, that the functional element (38) in a light-transmitting filling (4) is designed as a photovoltaic element which is coupled with another electrical and / or electromechanical functional element (38) for storing electrical energy and / or for supplying electrical energy. [7] Door leaf (2) according to claim 5 or 6, characterized by , that the functional element (38) is designed as a sensor (40) and / or actuator (39), in particular as a sensor (40) of an image acquisition device (44) or a sound acquisition or sound reproduction device or as a position sensor or a vibration sensor or a fingerprint recognition sensor or an actuator (39) of a locking system or a locking device. [8] Door leaf (2) according to one of claims 5 to 7, characterized by, that the functional element (38) is designed as an optically and / or acoustically perceptible signaling element and is preferably connected to an alarm system. [9] Door leaf (2) according to claim 1, characterized by , that a data transmission device (41) is arranged within the frame (3). [10] Door leaf (2) according to claim 1, characterized by , that the outer profile (13) has at least one convex sealing curvature (47) extending over its entire length on a profile end face (28) on the outside of the frame. [11] Door leaf (2) according to one of claims 1 or 10, characterized by , that the inner profile (12) has on its broad side (30) opposite a broad side (24) with the undercuts (25) a projection (31) extending beyond a frame outer profile end face (28) which is provided with a groove (33) for holding a seal (32). [12] Door leaf (2) according to claim 1, characterized by, that at least one tongue and groove connection which is movable in the direction of the longitudinal axis (double arrow 14) is provided between the inner profile (12) and the outer profile (13) and which is T-shaped or dovetail-shaped in cross-section. [13] Door leaf (2) according to claim 12, characterized by , that the clip connection (20) or the tongue and groove connection is assigned to longitudinal frame elements (8). [14] Door leaf (2) according to claim 13, characterized by , that one longitudinal frame element (8) is assigned to a closing side (10) and the other longitudinal frame element (8) is assigned to a hinge side (11).
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