FUNCTIONAL UNIT

Description

[0001] The present invention relates to a functional unit of a fitting for a building element, in particular for a window or a door, wherein the building element has a frame and a sash movable relative to the frame, and wherein the functional unit comprises the features of the preamble of claim 1.

[0002] Such functional units are known in various designs, each intended for different purposes, such as the automatic opening and closing of a sash, the automatic locking of a closed sash, or the automatic tilting or locking of a sash. For example, functional units of the type described above are used as modular hardware components for tilt-and-turn fittings, tilt-and-turn fittings for windows, doors, gates, flaps, and the like.

[0003] The coupling of the contact section with the wing is not only to be understood as a permanent or detachable fastening, but also as a pulling or pushing action, whereby the contact section of the coupling element carries the wing along with it. This means that the coupling can only be effective in one direction.

[0004] Fittings with individually controllable functional units are significantly more versatile than, for example, push-rod fittings. However, accommodating the functional units, and especially the drive systems, within the rebate area of ​​a component is challenging due to the limited installation space. In particular, the sliding path provided for the translation section must generally be at least as long as the specified adjustment stroke. A fitting component that protrudes laterally or vertically from the frame profile and encompasses the sliding path, for example, impairs the visual appearance of the component and is unacceptable for many component types.

[0005] EP 3 032 021 A1 discloses a fitting with an electrically driven locking unit based on the engagement of a mushroom-shaped locking bolt in a locking receptacle.

[0006] US patent 2012 / 023824 A1 discloses an electric door opener comprising a pivoting arm for pushing open the door leaf, the drive being provided by an electric motor and a spindle drive.

[0007] DE 197 38 131 C1 discloses a bolt actuation device for an intrusion alarm control panel, which has an electrically driven bolt.

[0008] It is an object of the invention to provide a functional unit that is compact and can be discreetly attached to a component.

[0009] The problem is solved by a functional unit with the features of claim 1.

[0010] The invention provides that the displacement direction runs transversely to the main positioning direction and that the functional unit has a conversion device designed to convert a displacement movement of the translation section into a positioning movement of the coupling element.

[0011] The translational section can thus be moved along a frame or sash edge, so that the associated sliding track does not have to protrude from the component even over longer distances. A functional unit designed according to the invention can therefore be discreetly housed in the rebate area of ​​a component. In particular, the adjustment stroke is not limited to the thickness of the component.

[0012] The base body can be designed in a housing-like form. Furthermore, the base body can be designed for attachment in a hardware groove or a milled recess in the frame or sash.

[0013] The direction of displacement can be at least essentially perpendicular to the main positioning direction.

[0014] Further developments of the invention can be found in the dependent claims, the description and the accompanying drawings.

[0015] It can be provided that the base body has a longitudinal axis and that the translation section is displaceable at least substantially parallel to the longitudinal axis. An elongated base body in which the coupling element can be extended transversely to the longitudinal axis is particularly easy to accommodate in the fold area of ​​a component.

[0016] The coupling element can have an elongated base section with a first longitudinal end and an opposing second longitudinal end. This facilitates the wing's deployment. For example, the elongated base section can be rod-like or lever-like.

[0017] A particular embodiment of the invention provides that the base section is mounted on the base body in the region of the first longitudinal end and the contact section is arranged in the region of the second longitudinal end of the base section. Thus, essentially the entire length of the elongated base section can be used to support the wing.

[0018] According to the invention, the drive system comprises a motor arranged on the base body with a rotatable output shaft, which is coupled to a spindle drive designed to convert the rotary motion of the output shaft into a displacement motion of the translation section. The spindle drive is preferably self-locking, so that the motor can be switched off as soon as the coupling element has reached the desired position after a motor-driven movement phase.

[0019] The motor's output shaft can have a rotational axis oriented transversely to the main direction of rotation. This design facilitates the use of electric motors with an elongated housing. In particular, the output shaft, when the functional unit is mounted, can be aligned along a frame or sash edge, thus making efficient use of the available installation space.

[0020] The spindle drive comprises a drive spindle driven by the motor and a spindle nut that supports the translation section. This allows for a particularly simple conversion of a rotary movement of the motor shaft into a linear movement of the translation section.

[0021] Preferably, the drive spindle has a spindle axis that runs transversely to the main positioning direction. Thus, in the assembled state of the functional unit, the drive spindle can be aligned along a frame or sash edge.

[0022] In the assembled state of the functional unit, the main positioning direction can run parallel to the frame plane of the component. According to the invention, the coupling element is designed as a locking bolt of a closure, which moves within the frame plane and engages in a corresponding receptacle.

[0023] According to the invention, the transfer device comprises a cam control. A cam control is robust and reliable and requires only a few components.

[0024] The cam control is designed to have at least one inclined guide coupled to the translation section and running obliquely to the direction of movement. The coupling element is guided in a linear guide running parallel to the main positioning direction and additionally in the inclined guide. When the translation section is moved, the inclined guide presses against the coupling element, causing it to move within the linear guide in the direction specified by the linear guide. The linear guide and / or the inclined guide can be designed as simple sliding guides. Depending on the application, the linear guide and / or the inclined guide can be straight or curved.

[0025] According to the invention, the functional unit is a locking unit which, in the assembled state, is designed to releasably fix the sash to the frame, wherein the coupling element is formed by a sliding locking bolt which, in the assembled state of the locking unit, engages in a retaining receptacle when it is in the extended position. The contact section can be formed by the engaging part of the locking bolt. A set of several such locking units can replace a conventional rod lock.

[0026] The invention also relates to a component for closing an opening, in particular a window or a door, comprising a frame, a sash movable relative to the frame and a fitting.

[0027] According to the invention, the fitting comprises at least one functional unit designed as described above.

[0028] The invention is described below by way of example with reference to the drawings. Fig. 1 is an exploded view of a functional unit not according to the invention, designed as a storage unit. Fig. 2 shows the functional unit according to Fig. 1 in a side view. Fig. 3 shows the functional unit according to Fig. 1 in a top view with a retracted coupling element. Fig. 4 shows the functional unit according to Fig. 3 with the coupling element extended. Fig. 5 is an exploded view of a functional unit not according to the invention, designed as an opener / closer unit. Fig. 6 shows a part of the functional unit according to Fig. 5 in a top view with a retracted coupling element. Fig. 7 shows the arrangement according to Fig. 6 with the coupling element partially extended. Fig. 8 shows the arrangement according to Fig. 6 with the coupling element fully extended. Fig. 9 shows a contact section of the in Fig. 5 The functional unit shown is engaged with a locking element in a front view. Fig. 10 is an exploded view of a functional unit according to the invention, designed as a locking unit. Fig. 11 is a partial view of the functional unit according to the invention. Fig. 10 Side view with a retracted coupling element. Fig. 12 shows the functional unit according to Fig. 11 with the coupling element extended.

[0029] The in Fig. 1-4 The functional unit 11 shown, designed according to a first, non-inventive embodiment, is a modular component of a door or window fitting and is designed as a bearing unit. That is, the functional unit 11 serves to rotatably mount a door or window sash (not shown) on the associated frame. A base body 13 of the functional unit 11 is designed for attachment to the frame, for example in a fitting groove or in a milled recess of a frame profile. In the illustrated embodiment, the base body 13 comprises two half-shell elements 15 and a cover plate 17.

[0030] A coupling element 21 is movably mounted on the base body 13. This coupling element has an elongated pivot arm 22 and a contact section 23. The contact section 23 is formed by a bearing pin 24, which is arranged at a longitudinal end 18 of the pivot arm 22. A bearing fitting 25 is rotatably mounted on the bearing pin 24 and can be coupled directly or indirectly to the sash. The bearing fitting 25 is preferably designed in at least two parts, the two parts being coupled by means of a bayonet fitting 19. If necessary, the bayonet fitting 19 can be opened to detach the sash from the functional unit 11. Furthermore, a height adjustment device (not shown) can be integrated into the bearing fitting 25.

[0031] To be able to detach the sash from the frame in the area of ​​the pivot hinge, for example for ventilation, the coupling element 21 can be inserted between the in Fig. 3 shown entrenched position and the one in Fig. 4 The extended position shown can be adjusted as explained in more detail below.

[0032] A drive system 27 is attached to the base body 13 ( Fig. 1 ) arranged, comprising an electric motor 29 and a spindle drive 30 with a drive spindle 31 and a spindle nut 33 mounted thereon. The electric motor 29 is connected to an electronic control unit 44, which is designed to receive higher-level control signals from a main control unit (not shown) and to control the electric motor 29 depending on the received control signals.

[0033] One in Fig. 1-4 The output shaft of the electric motor 29, which is not visible, is aligned coaxially with the spindle axis 35 of the drive spindle 31 and is effectively coupled to the drive spindle 31 by means of a shaft coupling 37. In principle, the output shaft of the electric motor 29 could also be directly connected to the drive spindle 31, in which case no shaft coupling would be required.

[0034] The spindle nut 33 carries a slide-like translation section 39 on which the coupling element 21 is rotatably mounted about a pivot axis 40. The corresponding bearing shaft 41 extends through an elongated hole 42 provided in the cover plate 17. As shown, the pivot axis 40 is located at the opposite longitudinal end 43 of the elongated pivot arm 22 with respect to the bearing journal 24.

[0035] The swivel arm 22 remains connected to the base body 13 via a lever 45. As in Fig. 3 und 4 The lever 45 can be seen being hinged on the cover plate 17 on one side and on the other side in a central area on the swivel arm 22.

[0036] If, starting from the point in Fig. 3 The shown state of the functional unit 11 of the electric motor 29 of the drive system 27 is activated such that the spindle nut 33 with the translation section 39 is parallel to the spindle axis 35 in a position that Fig. 4 As the pivot arm 22 moves in the direction of displacement 47 shown, it performs a pivoting movement due to the support provided by the lever 45. The pivot axis 40 moves along with the translation section 39, and the bearing pin 24 is displaced away from the base body 13 in a main positioning direction 49. By activating the electric motor 29 in the opposite direction, the pivot arm 22 can be moved away from the position shown in the lever 45. Fig. 4 shown extended position back into the retracted position according to Fig. 3 be swung back, whereby the bearing pin 24 is moved towards the base body 13 in the opposite direction to the main positioning direction 49.

[0037] The arrangement of the pivot arm 22 and the lever 45 forms a conversion device 50, which converts a linear displacement movement of the translation section 39 into a transverse, approximately linear positioning movement of the contact section 23. Strictly speaking, the contact section 23 does not move exclusively transversely to the displacement direction 47, because the pivoting movement also allows for slight movement components of the contact section 23 in or against the displacement direction 47. However, these are so insignificant that the conversion device 50 essentially generates a positioning movement of the contact section 23 in the main positioning direction 49.

[0038] The basic body 13 is elongated as shown, that is, it has a longitudinal axis 53 ( Fig. 2 ) This runs parallel to the spindle axis 35, the displacement direction 47, and the non-visible shaft axis of the electric motor 29. As a result, the size of the functional unit 11 is relatively small when viewed in the main positioning direction 49. Accordingly, the functional unit 11 can easily be mounted on an edge of the frame. Even a flush-mounted installation in a recess of the frame can be easily achieved. The installation depth, viewed in the main positioning direction 49, is independent of the maximum displacement length of the translation section 39. The vertical installation height is also small and independent of the displacement length. The limited installation height is achieved, among other things, by the plate-like design of the swivel arm 22.

[0039] In Fig. 5 A second embodiment of a functional unit 61, not according to the invention, is shown. This unit is designed as an opener / closer unit which, in the assembled state, is configured for the automatic opening and closing of the sash during an automatic phase. The design of the base body 13 and the drive system 27 is the same as in the first embodiment according to Fig. 1-4 The coupling element 71 comprises, similarly to the first embodiment, a pivot arm 72 which is connected to the base body 13 via a lever 45. However, in the second embodiment, the contact section 73 of the coupling element 71 is formed by a retaining pin 74 that can be detachably coupled to the wing. This retaining pin has a mushroom-shaped head and interacts with a locking element 75 attached to the wing.

[0040] As in Fig. 6-8 The locking element 75 visibly features a coupling guide 76 that extends along a guide direction 77 and serves to guide the retaining pin 74 in the guide direction 77. As shown in Fig. 9 The coupling guide 76 visibly comprises engagement webs 78, which are designed to grip the mushroom-shaped retaining pin 74. In the Fig. 6-8 The mushroom head of the retaining pin 74 is not shown.

[0041] With respect to the guide direction 77, the coupling guide 76 is closed at one end, while at the other end it has an opening 79 ( Fig. 6 ) exhibits.

[0042] The opening 79 allows the retaining pin 74 to move into and out of the coupling guide 76. A corresponding movement sequence, starting from a retracted position of the swivel arm 72, is described in the Fig. 6-8 shown. Initially, the sash is held to the frame ( Fig. 6 ). When the electric motor 29 is activated and the swivel arm 72 extends as a result, the sash is opened, although it is initially still coupled to the frame via the swivel arm 72 ( Fig. 7 ). When the retaining pin 74 has reached the opening 79 ( Fig. 8 ), the wing detaches from the swivel arm 72, so that the further opening process can be carried out manually.

[0043] When the sash is slammed shut with the extended swing arm 72, the retaining pin 74 strikes the locking element 75 and enters the coupling guide 76 via the opening 79. The electric motor 29 can then be activated so that the swing arm 72 retracts, automatically closing the sash. To prevent damage from a hard impact of the retaining pin 74 on the locking element 75, a spring or similar damping element can be integrated into the spindle drive 30 of the functional unit 61.

[0044] Unlike Fig. 1-4 is in the embodiment according to Fig. 5-9 The swivel arm 72 is rotatably mounted on the base body 13 about a fixed pivot axis 80, while the lever 45 is articulated on the one hand in a central area on the swivel arm 72 and on the other hand on the translation section 39.

[0045] If, starting from the point in Fig. 6 In the shown state of the functional unit 61, when the translation section 39 with the articulated lever 45 is moved to the right, the lever 45 pulls the pivot arm 72 along with it and pivots it out, so that the retaining pin 74 is displaced away from the base body 13 transversely to the displacement direction 47 in a main positioning direction 49, similar to the first embodiment ( Fig. 7 ). In this embodiment as well, the arrangement of swivel arm 72 and lever 45 forms a conversion device 90 which converts a linear displacement movement of the translation section 39 into a transverse, approximately linear positioning movement of the contact section 73.

[0046] In Fig. 10-12 A third embodiment of a functional unit 91 according to the invention is shown. In this embodiment, the functional unit 91 is a locking unit which, in the assembled state, is designed to releasably fix the sash to the frame. The coupling element 101 here comprises a sliding locking bolt 102 which, in the assembled state of the functional unit 91, engages in a retaining receptacle 105 when it is in the position shown in the figure. Fig. 12 shown in the extended position. The retaining receptacle 105 is formed on a locking sleeve 106, which is attached to the sash. When the locking bolt 102 engages in the retaining receptacle 105, the sash is locked to the frame. If, however, the locking bolt 102 is in the extended position as shown in the figure shown, the sash is locked to the frame. Fig. 11 When the wing is retracted, it is released for an opening movement. In the third embodiment, the contact section 103 of the coupling element 101 is formed by the tip 104 of the locking bolt 102.

[0047] In the third embodiment, the main positioning direction 49 also runs transversely to the displacement direction 47 of the translation section 39 ( Fig. 12 In contrast to the first two embodiments, the main positioning direction 49 in the assembled state of the functional unit 91 does not run perpendicular to the frame plane, but parallel to it.

[0048] In the embodiment shown in Figs. 10-13, a cam control 111 is provided as the transfer device 110. This comprises an inclined guide 113 coupled to the translation section 39 and running obliquely to the displacement direction 47, which here is formed by two guide plates 115 coupled to the translation section 39. The coupling element 101 is connected by means of two cam blocks 117 in a guide running parallel to the main positioning direction 49, in Fig. 10-12 guided in the non-visible linear guide and additionally in the inclined guide 113.

[0049] If, starting from the point in Fig. 11 In the depicted state of functional unit 91, when the electric motor 29 is activated such that the spindle nut 33 moves with the translation section 39 in a displacement direction 47 to the right, the cam blocks 117 are actuated by the inclined guide 113 and moved upwards in the linear guide, thereby extending the locking bolt 102. By moving the translation section 39 to the left in the opposite direction of displacement 47, the locking bolt 102 can be retracted. In doing so, the contact section 103 is moved towards and into the base body 13 in the opposite direction of displacement 49.

[0050] All the exemplary functional units 11, 61, 91 can be manufactured so compactly that they can be discreetly installed in the rebate area of ​​a window or door. In particular, it has been shown that the cross-sectional width and height of the base bodies 13 can be limited to approximately 30 mm or less. Bezugszeichenliste:

[0051] 11 Functional unit 13 Base body 15 Half-shell element 17 Cover plate 18 Longitudinal end 19 Bayonet lock 21 Coupling element 22 Swivel arm 23 Contact section 24 Bearing pin 25 Bearing fitting 27 Drive system 29 Electric motor 30 Spindle drive 31 Drive spindle 33 Spindle nut 35 Spindle axis 37 Shaft coupling 39 Translation section 40 Swivel axis 41 Bearing shaft 42 Slotted hole 43 Longitudinal end 44 Electronic control unit 45 Lever 47 Direction of movement 49 Main positioning direction 50 Conversion device 53 Longitudinal axis of the base body 61 Functional unit 71 Coupling element 72 Swivel arm 73 Contact section 74 Retaining pin 75 Locking part 76 Coupling guide 77 Guide direction 78 Engagement web 79 Opening 80 Fixed pivot axis 90 Conversion device 91 Functional unit 101 Coupling element 102 Locking bolt 103 Contact section 104 Tip 105 Retaining device 106 Locking sleeve 110 Conversion device 111 Slide control 113 Inclined guide 115 Guide plate 117 Slide block

Claims

1. Functional unit (91) of a fitting for a building element, in particular for a window or a door, wherein the building element comprises a frame and a sash movable relative to the frame, and wherein the functional unit (91) comprises: a base body (13), a coupling element (101) adjustable relative to the base body (13), wherein the base body (13) is configured for attachment to the frame or to the sash, and the adjustable coupling element (101) comprises a contact section (103) that is coupled to or can be coupled with the other element of the frame and the sash, and a drive system (27) for motorically adjusting the coupling element (101) at least between a retracted position and an extended position, wherein the coupling element (101) is drivingly connected with a translational section (39) of the drive system (27), which is at least substantially linearly displaceable in a displacement direction (47), wherein the contact section (103) can be displaced away from the base body (13) in a main adjustment direction (49) by an adjustment movement of the coupling element (101) from the retracted position to the extended position, wherein the displacement direction (47) extends transversely to the main adjustment direction (49) and the functional unit (91) comprises a conversion device (110) configured to convert a displacement motion of the translational section (39) into an adjustment movement of the coupling element (101), wherein the conversion device (110) comprises a link motion (111) that includes at least one inclined guide (113) coupled to the translational section (39) and extending obliquely to the displacement direction (47), and wherein the functional unit (91) is a locking unit configured, in the installed state, to releasably secure the sash to the frame, wherein the coupling element (101) is formed by a sliding locking bolt (102) which, in the installed state of the locking unit, engages a retaining receptacle (105) when it is in the extended position, wherein the drive system (27) comprises a motor (29) arranged on the base body (13) and having a rotatable output shaft that is drivingly coupled to a spindle drive (30), which is configured to convert the rotational motion of the output shaft into a displacement motion of the translational section (39), and wherein the spindle drive (30) comprises a drive spindle (31) driven by the motor (29) and a spindle nut (33) that supports the translational section (39), characterized in that the coupling element (101) is guided by means of two link blocks (117) in a linear guide running parallel to the main adjustment direction (49) and additionally in the inclined guide (113), and that the inclined guide (113) is formed by two guide plates (115) coupled to the translational section (39).

2. Functional unit according to claim 1, characterized in that the base body (13) has a longitudinal axis (53) and the translational section (39) is displaceable at least substantially parallel to the longitudinal axis (53).

3. Functional unit according to claim 1 or 2, characterized in that the coupling element (101) has an oblong base section (102) with a first longitudinal end and an opposite second longitudinal end, in particular wherein the base section (102) is mounted on the base body (13) in the region of the first longitudinal end, and the contact section (103) is arranged in the region of the second longitudinal end of the base section (102).

4. Functional unit according to any one of the preceding claims, characterized in that the output shaft of the motor (29) has an axis of rotation that is oriented transversely to the main adjustment direction (49).

5. Functional unit according to one of the preceding claims, characterized in that the drive spindle (31) has a spindle axis (35) that runs transversely to the main adjustment direction (49).

6. Functional unit according to one of the preceding claims, characterized in that when the functional unit (91) is installed, the main adjustment direction (49) runs transversely to the frame plane of the building element.

7. Building element for closing an opening, in particular a window or door, with a frame, a sash movable relative to the frame, and a fitting, characterized in that the fitting comprises at least one functional unit (91) according to one of claims 1 to 6.