Holding element with spring elements

Abstract

Holding element (1), especially for use on a window sill or a facade system, comprising at least one spring section (2) and one receiving element (4), wherein the retaining element (1) has a substantially plate-shaped and / or flat geometry with two opposing end faces (S) and two opposing long edge regions (11) which extend predominantly along a longitudinal axis (L), wherein the retaining element (1) has two opposing short edge regions (14) which extend substantially orthogonally to the longitudinal axis (L), wherein the short marginal regions (14) connect the long marginal regions (11) at their distal ends.

Description

[0001] The present invention relates to a holding element, in particular for use on a window sill or a facade system.

[0002] In the current state of the art, cover systems, particularly depth-adjustable window sill systems, are generally known to be complex to install and remove. Standard window sill systems are typically installed using either elaborate screw connections or complicated plug-in systems. Installing and removing window sill systems, especially when only individual components need to be replaced without damaging the window reveal or the facade, presents a challenge.

[0003] The object of the invention is therefore to provide a holding element and a fastening unit by means of which window sills and facade coverings can be more easily mounted and dismounted.

[0004] This problem is solved with a retaining element according to claim 1, a fastening unit according to claim 11 and a covering system according to claim 16.

[0005] According to the invention, a retaining element, in particular for use on a window sill or a facade system, is provided, comprising at least one spring section and a receiving element, wherein the retaining element has a substantially plate-shaped and / or flat geometry with two opposing end faces and two opposing long edge regions that extend predominantly along a longitudinal axis, wherein the retaining element has two opposing short edge regions that extend substantially orthogonally to the longitudinal axis, wherein the short edge regions connect the long edge regions at their distal ends.In the present invention, a window sill can be connected to the building via a system of various connecting elements. The central and crucial connecting element is a retaining element that essentially connects all the individual parts of the window sill system, enabling easy installation and compensating for variations in sill depth. This retaining element is preferably an elongated, plate-shaped component that can be inserted into a wall unit, which partially accommodates the retaining element, with adjustable depth along its long edges. This allows the entire system to be adapted to window sills of different depths. One short edge of the retaining element is oriented towards the window, while the opposite short edge accommodates the window sill via another connecting element.This connection via the retaining element enables a purely force-fit and form-fit connection of the individual components, requiring no additional tools. To allow for variable and easily adjustable positioning of the retaining element relative to the wall unit, and thus relative to the building, the retaining element features a spring section that ensures a force-fit and friction-fit securing of the retaining element within the wall unit.

[0006] In one embodiment, the retaining element is manufactured in one piece. This one-piece design enables efficient mass production, making it particularly suitable for large-scale manufacturing. Furthermore, it essentially eliminates any significant weak points or vulnerable joints, resulting in improved overall strength for the one-piece retaining element.

[0007] In one embodiment, at least one of the end faces has at least one longitudinal groove, wherein the at least one longitudinal groove extends predominantly parallel to the longitudinal axis; wherein the at least one longitudinal groove is designed as a recess in the end face of the retaining element. To save weight and material, longitudinal grooves are preferably integrated into the end faces of the retaining element along the longitudinal axis. Due to the longitudinally oriented grooves, the retaining element still possesses sufficient strength. The longitudinal grooves are preferably rounded, in particular semicircular in cross-section, to minimize local stress concentrations in the material of the retaining element.

[0008] In one embodiment, a spring section is formed on at least one of the long edge regions of the retaining element, wherein the spring section comprises at least one spring element, adjacent to which at least one spring recess is formed. The spring section is formed from spring elements and spring recesses that are arranged adjacent to each other, such that the retaining element is compressible or elastically deformable orthogonally to the longitudinal direction. In particular, the spring recess is arranged further inward than the spring element and provides a space into which the spring element can pivot during elastic deformation. The retaining element can therefore preferably also be fixed to the wall unit by means of this spring section in a force-fit and form-fit manner.

[0009] In one embodiment, the spring elements and spring recesses are wave-shaped when viewed perpendicular to the end face and are arranged essentially uniformly along the respective long edge region. The wave-shaped design of the spring section allows it to absorb elastic deformation forces, which, due to the symmetrical arrangement of the spring elements and spring recesses, are distributed evenly over the long edge region of the retaining element, preventing stress concentrations. This ensures uniform deformation of the retaining element, enabling a secure connection between the retaining element and the fastening unit as a whole. As an alternative to the wave-shaped design, triangularly rounded or straight spring elements with corresponding spring recesses are also possible.

[0010] In one embodiment, a spring section is formed on only one of the two long edge regions. The one-sided formation of the spring section simplifies the manufacture of the retaining element and, in particular, the insertion of the retaining element into the mounting unit of the cover system, since it slides more easily on its smooth side. Furthermore, a one-sided spring section is sufficient for a secure, force-fit, and form-fit connection of the retaining element to the mounting unit.

[0011] In one embodiment, the spring element has a contact point which, at least in an undeformed, stress-free state of the retaining element, is located further from the opposite long edge region than a region of the long edge region situated between two spring elements. When the retaining element is inserted into the wall unit of the cover system and compressed, i.e., brought into a deformed, stressed state, the retaining element contacts the inside of a receiving section of the wall unit at the contact points of the spring elements. In this state, the difference between the distance of the contact points to the opposite long edge region and the distance of the region situated between two spring elements to the opposite long edge region decreases because the compression forces the contact points and the region between two spring elements together.Advantageously, the spring elements protrude beyond the remaining sections of the long lateral edge area, at least in the undeformed, stress-free state, but preferably also in the deformed state. This provides sufficient spring travel for elastic deformation of the spring elements.

[0012] In one embodiment, a receiving element is formed on one of the short edge regions, the receiving element having a cylindrical geometry that extends parallel to the short edge regions. The connection of the retaining element to the window sill is indirect via a connecting element that can be fixed to the receiving element located on the short edge region of the retaining element. The cylindrical geometry allows the connecting element to be received preferably via a rotatably mounted pin connection, so that the window sill can be easily mounted and dismounted on the fastening unit.

[0013] In one embodiment, the receiving element is arranged on the short edge region such that it borders the long edge region of the retaining element that faces away from the spring section. The receiving position is preferably located on the side facing away from the spring section, as this side has higher strength and thus ensures a more stable connection between the retaining element and the fastening unit.

[0014] In one embodiment, the receiving element has at least one receiving position, wherein the receiving position is designed as a round recess penetrating the receiving element. To achieve a preferably rotatable mounting of the connecting element on the retaining element, the receiving position is preferably round and penetrating the receiving element. This rotatable mounting particularly simplifies the assembly and disassembly of the entire window sill system.

[0015] According to the invention, a fastening unit is provided comprising a retaining element, a front unit, and a wall unit. The wall unit is designed for attachment to a building and has a receiving section designed to receive the retaining element. The front unit has an engagement section designed for positive engagement with the receiving position of the retaining element, such that the front unit is rotatably mounted on the retaining element about an axis of rotation. The front unit serves as the connecting element that links the retaining element to the window sill and is rotatably and positively locked to the receiving position of the retaining element. The connection between the retaining element and the facade or the building is made via the wall unit, into whose receiving section the retaining element can be inserted in a positive and force-locking manner.

[0016] In one embodiment, the receiving section of the wall unit, running parallel to the mounting direction, has a constant internal cross-section and an undercut for positive engagement with the long edge areas of the retaining element. This allows the retaining element to be inserted into the wall unit along its longitudinal axis, such that the insertion depth of the retaining element into the wall unit can be variably set. The undercut of the receiving section of the wall unit secures the retaining element tangentially against displacement, allowing it to move only in the longitudinal direction. Therefore, depending on the depth of the windowsill, the insertion depth of the retaining element into the receiving section of the wall unit can be adjusted for different windowsill systems.

[0017] In one embodiment, when the retaining element is inserted into the receiving section, at least one spring element is elastically deformed and pre-tensioned against the inside of the receiving section, resulting in a force-fit and friction-fit connection of the retaining element to the wall unit. Axial locking along the longitudinal axis is achieved via the spring section, which presses the retaining element into the receiving section. This form-fit and force-fit connection allows the retaining element to be inserted to any desired depth into the receiving section without axial displacement, thus enabling variable adjustment of the windowsill depth.

[0018] In one embodiment, the wall unit has a flange section extending substantially orthogonally to the receiving section and recesses for bolting the wall unit to the building, preferably to the building's masonry. Preferably, the wall unit can be attached to the building by means of bolting, which represents a particularly stable and secure mounting method and ensures that the entire fastening unit is positively and non-positively fixed to the building. Furthermore, the bolted connection is detachable.

[0019] In one embodiment, the wall unit is designed as a single-piece component comprising the receiving section and the flange section. This single-piece design of the wall unit particularly increases the strength and stability of the entire component, as it eliminates critical connection points that can only be joined by form-fit, force-fit, and / or material-fit connections.

[0020] According to the invention, a cover system comprising at least one fastening unit and a cover element is provided, wherein the cover element is fixed to the fastening unit by force-fit and / or form-fit. The window sill, as the cover element, is typically fixed to the retaining element by force-fit and / or form-fit via the rotatably mounted front unit. The fastening unit is preferably attached to the building via screws using the wall unit, so that the entire window sill system is easily removable and fixed to the building.

[0021] Further advantages and characteristic features of the present invention will become apparent from the following description with reference to the accompanying figures. Identical features are used with the same reference numerals in the figures, even if they are part of different embodiments. It is understood that individual features explicitly described only for a specific embodiment may also be used in other embodiments of the invention, unless this is precluded by technical constraints.

[0022] They show: Fig. 1 a perspective view of an embodiment of a holding element Fig. 2 a top view of an embodiment of a retaining element Fig. 3 a side view of an embodiment of a retaining element Fig. 4 of a perspective view of an embodiment of a fastening unit with wall unit Fig. 5 of a perspective detail view of an embodiment of a front unit Fig. 6 of a perspective detail view of an embodiment of a wall unit Fig. 7 of a perspective view of an embodiment of a fastening unit without a wall unit Fig. 8 of a side view of an embodiment of a cover system

[0023] The Fig. 1, Fig. 2 to Fig. Figure 3 shows an embodiment of a retaining element 1 from different perspectives, wherein Fig. 1 the holding element 1 from a perspective view, Fig. 2 from a top view and Fig. 3 shows a side view.

[0024] The retaining element 1 comprises a spring section 2 on one of the long edge regions 11 and a receiving element 4 with a receiving position 42, which is located on one of the short edge regions 14 adjacent to the long edge region 11 facing away from the spring section 2. Spring elements 21 and spring recesses 22 are arranged adjacent to each other on the spring section 2, by means of which the retaining element 1 can be compressed. Along the longitudinal axis L, several longitudinal grooves 12 are located on the end face S, which reduce the weight of the retaining element 1. Preferably, the thickness of the retaining element 1, i.e., the thickness in Fig. The maximum vertical extent of the holding element 1 shown in Figure 3 is only approximately 0.01 to 0.15 times the longest extent of the holding element 1 measured parallel to the longitudinal axis L.

[0025] In Fig. Figure 4 shows a perspective view of an embodiment of a fastening unit 10 with a wall unit 8 and a front unit 6, in which the already shown in the Fig. 1, Fig. 2 to Fig. Figure 3 shows an embodiment of the retaining element 1 integrated into the wall unit 8. The wall unit 8 comprises a flange section 84, via which the fastening unit 10 can be fixed to the building G, and a receiving section 82, into which the retaining element 1 can be inserted at a variable depth. The front unit 6 can be rotatably mounted about the axis of rotation D at the receiving position 42, so that the cover element 5 can be mounted via the front unit 6.

[0026] Fig. Figure 5 shows an embodiment of a front unit 6 with an engagement section 62 for use on the mounting unit 10 according to Fig. 4. The front unit 6 can be rotatably mounted on the receiving position 42 of the retaining element 1 via the engagement section 62. The front unit 6 can be moved relative to the wall unit 8 from a starting position to a mounting position in which a cover element 5 can be installed. In the starting position, the cover element 5 is fixed to the mounting unit 10.

[0027] Fig. Figure 6 shows a perspective detail view of an embodiment of a wall unit with a receiving section 82, which has an undercut for receiving and tangentially securing the retaining element 1, and a flange section 84, via which the wall unit 8 can be screwed to the building G or to a facade. As in Fig. As can be seen in Figure 7, the retaining element 1 can be inserted into the receiving section 82 of the wall unit 8, whereby, firstly, a positive locking of the retaining element 1 can be achieved in all directions except along the mounting direction M on the wall unit 8. Secondly, the lateral, C-shaped sections of the receiving section 82, which are advantageously also formed on the flange section 84, provide stiffening of the wall unit 8.

[0028] In Fig. Figure 7 is a perspective view of an embodiment of a wall unit 8 without a flange section 84, in which the retaining element 1 is shown according to the one already described in the Fig. 1, Fig. 2 to Fig. In the embodiment shown in Figure 3, the wall unit 8 is only partially inserted into the receiving section 82 along the mounting direction M. This simplified version of the wall unit 8 can be screwed directly onto the top of the masonry of a window reveal and is particularly cost-effective to manufacture. It is understood that the [unclear text] Fig. The embodiment shown in 6 is more easily accessible and fixed from the front of the masonry below the window sill.

[0029] Fig. Figure 8 shows a side view of an embodiment of a cover system 100, which is an embodiment of a fastening unit 10 with a wall unit 8 without a flange section 84 according to the one shown in Fig.The embodiment shown in Figure 7 comprises a cover element 5, which is fixed to the building G via the fastening unit 10. In this embodiment, the cover element 5 is a window sill. In alternative embodiments, the cover element 5 can also be a facade cover element, which is arranged essentially vertically on a building facade and fixed via the fastening unit 10. Reference symbol list: 1 retaining element 2 Spring section 4 Recording element 5 Cover element 6 Front unit 8 wall unit 10 Mounting unit 11 Long edge area 12 longitudinal grooves 14 Short marginal area 21 Spring element 22 Spring recess 42 Recording position 62 Intervention section 82 Recording section 84 Flange section 100 Cover system S Front surface L Longitudinal axis Building G M Mounting direction D axis of rotation

Claims

[1] Holding element (1), especially for use on a window sill or a facade system, comprising at least one spring section (2) and one receiving element (4), wherein the retaining element (1) has a substantially plate-shaped and / or flat geometry with two opposing end faces (S) and two opposing long edge regions (11) which extend predominantly along a longitudinal axis (L), wherein the retaining element (1) has two opposing short edge regions (14) which extend substantially orthogonally to the longitudinal axis (L), wherein the short marginal regions (14) connect the long marginal regions (11) at their distal ends. [2] Retaining element (1) according to claim 1, wherein the retaining element (1) is made in one piece. [3] Holding element (1) according to one of claims 1 or 2, wherein at least one of the end faces (S) has at least one longitudinal groove (12), wherein at least one longitudinal groove (12) extends predominantly parallel to the longitudinal axis (L); wherein at least one longitudinal groove (12) is designed as a recess in the end face (S) of the retaining element (1). [4] Holding element (1) according to one of the preceding claims, wherein the spring section (2) is formed on at least one of the long edge regions (11) of the retaining element (1), wherein the spring section (2) has at least one spring element (21) adjacent to which at least one spring recess (22) is formed. [5] Holding element (1) according to claim 4, wherein the spring elements (21) and the spring recesses (22) are formed in a wave-like shape when viewed perpendicular to the end face (S) and are arranged in a substantially uniform manner along the respective long edge region (11). [6] Holding element (1) according to one of the preceding claims, wherein a spring section (2) is formed on only one of the two long edge regions (11). [7] Holding element (1) according to one of the preceding claims, wherein the spring element (21) has a contact point (23) which, at least in an undeformed, stress-free state of the holding element (1), is further away from the opposite long edge region (11) than a region of the long edge region (14) located between two spring elements (21). [8] Holding element (1) according to one of the preceding claims, wherein the receiving element (4) is formed on one of the short edge regions (14), wherein the receiving element (4) has a cylindrical geometry extending parallel to the short edge regions (14). [9] Retaining element (1) according to claim 7, wherein the receiving element (4) is arranged on the short edge region such that it borders the long edge region (11) of the retaining element (1) which is facing away from the spring section (2). [10] Holding element (1) according to one of the preceding claims, wherein the receiving element (4) has at least one receiving position (42), wherein the receiving position (42) is designed as a round recess penetrating the receiving element (4). [11] Fastening unit (10) comprising a retaining element (1) according to one of the preceding claims, a front unit (6) and a wall unit (8), wherein the wall unit (8) is designed for fixing to a building (G) and has a receiving section (82) which is designed to receive the retaining element (1), wherein the front unit (6) has an engagement section (62) which is designed for positive engagement with the receiving position (42) of the retaining element (1) such that the front unit (6) is rotatably mounted on the retaining element (1) about an axis of rotation (D). [12] Fastening unit (10) according to claim 11, wherein the receiving section (82) of the wall unit (8) has a constant internal cross-section extending parallel to the mounting direction (M) and has an undercut for positive engagement with the long edge regions (11) of the retaining element (1), so that the retaining element (1) can be inserted into the wall unit (8) along the longitudinal axis (L) in such a way that the insertion depth of the retaining element (1) into the wall unit (8) can be variably determined. [13] Fastening unit (10) according to one of claims 11 or 12, wherein in a inserted state of the retaining element (1) in the receiving section (82) the at least one spring element (21) is elastically deformed and pre-tensioned against the inside of the receiving section (82), wherein a force-fit and friction-fit fixing of the retaining element (1) to the wall unit (8) is present. [14] Fastening unit (10) according to claim 11, wherein the wall unit (8) has a flange section (84) which extends substantially orthogonally to the receiving section (82) and has recesses for screwing the wall unit (8) to the building (G), preferably to the masonry of the building (G). [15] Fastening unit (10) according to one of the preceding claims, wherein the wall unit (8) is designed as a one-piece component comprising the receiving section (82) and the flange section (84). [16] Cover system (100) comprising at least one fastening unit (10) according to one of claims 11 to 15 and a cover element (5), wherein the cover element (5) is fixed to the fastening unit (10) by force and / or form locking.

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