Fitting with a locking hook which can be locked by longitudinal sliding
A fitting with a spring bar hook and displacement body allows for tool-free, secure, and reversible attachment to window or door profiles, addressing complexity and damage issues in existing fittings.
Patent Information
- Authority / Receiving Office
- EP · EP
- Patent Type
- Patents
- Current Assignee / Owner
- ROTO FRANK FENSTER & TURTECHNOLOGIE GMBH
- Filing Date
- 2022-03-15
- Publication Date
- 2026-05-06
AI Technical Summary
Existing fittings for windows and doors are structurally complex, often not intuitively mountable, and not easily removable without tools, leading to potential damage during installation.
A fitting with a first arm and a locking element featuring a spring bar with a hook, which can be easily mounted by displacing a displacement body to secure the hook into a profile groove, allowing tool-free installation and removal, and a locking device to prevent unintentional disengagement.
The fitting is securely attached to the window or door without tools, enabling quick and reversible installation without damage, with a locking mechanism ensuring stability and ease of use.
Smart Images

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Abstract
Description
[0001] The invention relates to a fitting according to the preamble of claim 1. The invention further relates to a window or door with such a fitting and a method for mounting a fitting on a window or door.
[0002] It is known to mount a fitting, particularly in the form of a corner drive, on a profile groove of a sash. Various mounting methods for this purpose are already known: DE 1 961 348 A1 discloses a guide channel with tabs arranged on one side. The guide channel can be pivoted into a profile groove of a sash and then locked in place with a screw.
[0003] A corner deflection with a center fixing has become known from DE 10 2017 201 250 A1.
[0004] DE 198 34 042 C2 discloses a corner deflection mechanism that is fixed to the wing by means of a clamp. The clamp has locking hooks for engaging behind a profile groove of the wing.
[0005] From DE 24 56 009 C2, the fastening of a housing of a corner deflection of a drive rod fitting by means of a Z-shaped spring element has become known.
[0006] DE 29 53 717 C1 discloses the fastening of a housing of a corner deflection by means of a U-shaped clamp that can be inserted into a profile groove of a wing.
[0007] From DE 31 27 929 A1, a housing for a corner drive for a connecting rod fitting is known, which has several pins. The pins can be inserted into undercuts of a guide channel of a sash in order to attach the housing to the sash.
[0008] DE 35 45 860 A1 discloses a corner deflection device with a housing. Legs of the housing have a locking tab for attaching the housing to a wing.
[0009] From DE 41 38 741 C2 a corner deflection device is known which can be inserted into a groove of a wing and locked into place on the wing by a locking element.
[0010] EP 1 264 954 A1 discloses a corner deflection with a spring-loaded connecting rod which has a ramp at its end to facilitate the connection of this connecting rod with another connecting rod.
[0011] From EP 2 762 664 B1, a corner deflection device is known which can be fastened in a guide groove of a sash having undercuts. The fastening is made possible by a clamp that can be snapped onto the sash.
[0012] FR 2 521 629 A1 discloses the insertion of a corner drive into a profile groove of a wing. The corner drive has spring-loaded, expandable locking jaws for this purpose.
[0013] From DE 71 44 753 U, a corner deflection with an angled piece that can be fastened by a clamping piece is known. The clamping piece is slidable obliquely along the angled piece and is designed to press the angled piece against the bottom of a profile groove of a wing when in the displaced state.
[0014] The generic patent DE 2 015 723 A1 discloses various ways of attaching a guide channel to a wing. In particular, a spring bar with a locking hook can be provided on the guide channel, which can engage a profile groove of the wing. The spring bar can be deflected by a pin, a screw, or a wedge.
[0015] A disadvantage of the known fittings is that they are often structurally complex, cannot be removed reversibly and / or are not intuitively mountable. Object of the invention
[0016] It is therefore the object of the invention to provide a fitting that avoids the disadvantages of the prior art. Description of the invention
[0017] This problem is solved according to the invention by a fitting according to claim 1, a window or a door according to claim 11 and a method according to claim 13.
[0018] The problem according to the invention is thus solved by a fitting for a window or door, wherein the fitting can be mounted to a first profile groove of a sash of the window or door. The fitting has a first arm that can be mounted parallel to the extension of a sash mullion. The fitting has a locking element with a first locking hook (spring bar with hook) on the first arm. Furthermore, the fitting has a displacement element on the first arm. The locking element and the displacement element can be moved relative to each other in the direction of the longitudinal axis of the first arm from a loose position to a mounted position. In the loose position, the displacement element does not support the first locking hook, so that it is movable, in particular radially, preferably inwards.In the mounted position, the displacement body backs the first locking hook, preventing movement, particularly radially, preferably inwards, and reliably engaging a first web of the first profile groove. A chamfer is formed between the locking element and the displacement body, which moves the locking element from the loose position to the mounted position.
[0019] This allows the fitting to be securely attached to the wing, yet it is easy to install, especially without tools.
[0020] Preferably, the fitting can be mounted and dismounted on the sash without damage. The fitting can be designed to be mounted and dismounted without tools.
[0021] Preferably, the locking element is captive and held in place on the displacement body. Particularly preferably, all parts of the fitting are captive and held together, allowing for very quick installation of the fitting on the sash.
[0022] In a particularly preferred embodiment of the fitting, the first locking hook is pre-tensioned, especially radially inwards. This allows the first locking hook to be easily inserted into the first profile groove when the fitting is placed on it.
[0023] Preferably, the fitting has a second locking hook opposite the first locking hook. In the loose position, the second locking hook is movable, particularly radially, preferably inwards, and in the mounted position it is not movable, particularly radially, preferably inwards, so that it can reliably engage a second web of the first profile groove (opposite the first web).
[0024] Alternatively or in addition to pre-tensioning the first locking hook, the second locking hook can be pre-tensioned, in particular radially inwards, to facilitate the partial insertion of the fitting into the first profile groove.
[0025] The locking element can have a U-shaped clamp in cross-section, with the first locking hook formed on a first leg of the clamp. Preferably, the second locking hook is formed on a second leg of the clamp. The locking element can be in the form of the U-shaped clamp in cross-section. The locking element is preferably formed in one piece. The locking element is slide-shaped. The locking element can be in the form of a cover.
[0026] The fitting features a locking device that makes the locking element more difficult to move or locks it securely in the mounted position. This prevents unintentional release and movement of the locking element into the disengaged position. The locking device is preferably releasable, and in particular, releasable without tools, to allow the locking element to be moved to release the fitting. The locking device can be released by forcefully pushing along the length of the first arm using a ramp. The locking device secures the locking element in both the disengaged and mounted positions.
[0027] The locking device can be integrally formed with the housing or a housing part of the fitting. Preferably, the fitting has a two-part housing. The two parts of the housing can be identical.
[0028] Particularly preferably, the fitting has a connecting rod that can be movably connected to a connecting rod of the fitting, wherein the connecting rod is locked immovably in the loose position by the detent element and is movable in the mounted position. This allows for a central fixing of the connecting rod without having to release this central fixing when the connecting rod is first actuated. Since high forces are often required for such release processes in the prior art, there is always a risk of damage to a gearbox or other fitting components. This risk does not exist in the embodiment described here.
[0029] Preferably, the connecting rod is positively locked in the loose position by the locking element. The connecting rod can have at least one stop against which the locking element rests in the loose position. Preferably, the connecting rod has two stops between which the locking element is arranged in the loose position to keep the connecting rod immobile.
[0030] The fitting can be designed in the form of a locking piece, a gearbox, a scissor guide or a tilting bolt arrangement.
[0031] Preferably, the fitting is designed in the form of a corner deflection. It has a second arm whose longitudinal axis runs perpendicular to the longitudinal axis of the first arm.
[0032] The second arm can also have a locking element with a first locking hook and a displacement body, wherein the locking element can be moved from the loose position to the mounted position by means of a chamfer between the locking element and the displacement body by means of a displacement of the locking element in the longitudinal direction of the second arm, and wherein the first locking hook is movable in the loose position, in particular radially, preferably inwards, and is not movable in the mounted position, in particular radially, preferably inwards, in order to reliably engage a first web of a second profile groove in the mounted position.
[0033] To simplify the design of the fitting, the second arm can be identical in construction to the first arm.
[0034] The center fixation can be achieved by two stops, with a first stop for the locking part of the first arm on the first arm and a second stop for the locking part of the second arm on the second arm.
[0035] Preferably, the locking element of the first arm and / or the second arm can be moved towards the corner of the fitting into the mounted position. This results in a concealed and protected corner in the mounted position. Furthermore, a visual inspection function is achieved, as it is easily apparent whether the fitting is correctly mounted on the sash.
[0036] The problem according to the invention is further solved by a window or a door with a sash and a fitting mounted on it, as described here.
[0037] The wing is preferably designed in the form of a tilt-and-turn wing.
[0038] The first profile groove is particularly advantageous because it transitions seamlessly into the second profile groove. This allows the hardware to be attached to the sash without damaging it. In particular, it eliminates the need to open a corner of the sash by milling, filing, or similar methods, enabling quick and completely reversible installation.
[0039] The problem according to the invention is further solved by a method for assembling a fitting, in particular a fitting described herein, comprising the following method steps: A) Placing a first arm of the fitting onto a first profile groove of a wing, wherein a first locking hook of the fitting passes a first web of the first profile groove by means of its deflection, in particular radially, preferably inwards; B) Relative displacement of a displacement body of the fitting to a locking element with the first locking hook in the longitudinal direction of the first arm, wherein the locking element is moved from a loose position via an incline between the locking element and the displacement body into the mounted position, in which the first locking hook reliably engages behind the first web by the displacement body providing support behind the first locking hook. The procedure may further include the following procedural steps: C) Placing a second arm of the fitting onto a second profile groove of the sash, wherein a first locking hook of a locking part of the second arm passes a first web of the second profile groove by means of its deflection, in particular radially, preferably inwards; D) Relative displacement of a displacement body of the second arm to the locking part of the second arm in the longitudinal direction of the second arm, wherein the locking part is moved from a loose position via an incline between the locking part and the displacement body into the mounted position, in which the first locking hook reliably engages the second web by the displacement body backing the first locking hook.
[0040] In process step A), a first connecting rod of the wing can be attached to the first arm, and in process step C), a second connecting rod of the wing can be attached to the second arm.
[0041] Further advantages of the invention will become apparent from the description and the drawing. Likewise, the features mentioned above and those described in more detail below can each be used individually or in any combination according to the invention. The embodiments shown and described are not to be understood as an exhaustive list, but rather serve as examples for illustrating the invention. Detailed description of the invention and drawing
[0042] Fig. 1a shows an isometric partial view of a window with one sash and fittings partially mounted to the sash. Fig. 1b shows an isometric partial view of the window made of Fig. 1a with fully assembled hardware. Fig. 2 shows a partially cutaway side view of the window from the Figs. 1a and 1b with fittings partially mounted on the sash. Fig. 3 shows a partially cutaway side view of the window. Fig. 2with the hardware fully mounted on the sash. Fig. 4 shows a partially cutaway side view of the window. Fig. 3 with the fitting fully locked. Locking was achieved by sliding detent elements of the fitting. Fig. 5a shows a partially cutaway top view of the window. Fig. 3 , with a locking element in the loose position. Fig. 5b shows a partially cutaway top view of the window made of Fig. 4 , with the locking element in the mounted position. Fig. 6a shows a cutaway end view of the window. Fig. 5a Fig. 6b shows a cutaway front view of the window made of Fig. 5b Fig. 7 shows an isometric view of a housing of the fitting according to the Figures 1 to 6 Fig. 8 shows a cutaway side view of the fitting made of Fig. 5bFig. 9a shows an isometric partial view of a second embodiment of a window with fittings arranged on one sash, wherein a locking part of the fitting is in the loose position. Fig. 9b shows an isometric partial view of the window made of Fig. 9a , with the locking element in the mounted position. Fig. 10a shows a sectional view of the fitting mounted on the sash according to the Fig. 9a , where the cut is made along line BB according to Fig. 11a Fig. 10b shows a sectional view of the fitting mounted on the sash according to the Fig. 9b , where the cut is made along line BB according to Fig. 11b Fig. 11a shows a sectional view of the fitting mounted on the sash according to Fig. 10a , where the cut is made along line DD according to Fig. 10a Fig. 11b shows a sectional view of the fitting mounted on the sash according to Fig. 10b , where the cut is made along line CC according to Fig. 10b proceeds.
[0043] Fig. 1a shows a window 10 with one wing 12. There is a fitting on wing 12. 14 The fitting 14 is designed in the form of a corner deflection. The fitting 14 serves to deflect the movement and / or force of a first connecting rod. 16 to a second connecting rod 18.
[0044] Fitting 14 has a first arm 20 and a second arm 22 Arms 20 and 22 each have a locking element. 24, 26 The locking elements 24, 26 are each displaceable in the direction of the longitudinal axis of the arms 20, 22. Fig. 1a The locking parts 24, 26 are in a loose position in which the fitting 14 can be easily placed on the wing 12 and removed from the wing 12.
[0045] Fig. 1bFigure 10 shows window 10 with fitting 14, with the locking parts 24 and 26 in a mounted position. In this mounted position, fitting 14 is firmly locked to sash 12.
[0046] Fig. 2 The window 10 shows that, for the installation of the fitting 14, one arm, here the second arm 22, is first placed on the sash 12. This first installation step is shown in Fig. 2 by an arrow 28 hinted at.
[0047] Out of Fig. 2 It is also evident that the fitting has a drive rod connection. 30, here with a cone 32, The connecting rod 30 is for coupling the connecting rod 16, here with a recess. 34, trained.
[0048] The locking part 24 has a U-shaped clamp. 36 with a first locking hook 38 The connecting rod 30 has stops. 40, 42 on (more visible in) Fig. 7), between which the first locking hook 38 is arranged in the loose position of the locking element 24. The connecting rod 30 is thereby fixed in a central position.
[0049] Fig. 3 The window 10 is shown, and in a second assembly step, the other arm, here the first arm 20, is attached to the sash 12. This is indicated by an arrow. 44 As indicated. Thanks to the fixing of the connecting rod 30 in the central position, the pin 32 can easily be inserted into the recess 34 of the connecting rod 16.
[0050] Fig. 4 Figure 10 shows window 10 with fitting 14 mounted on sash 12. To fix the fitting 14 to the sash 12, the locking elements 24, 26 were moved in the direction of the longitudinal axes of the arms 20, 22. This is shown in Fig. 4 by arrows 46, 48 The locking parts 24, 26 can be moved in any order or simultaneously.
[0051] After the locking element 24 is moved into the mounted position, the connecting rod assembly 30 is no longer blocked but movable. This prevents a center fixing from "breaking loose" and putting stress on the window 10.
[0052] Fig. 5a The window 10 with the fitting 14 is shown, with the locking part 24 in the loose position.
[0053] Fig. 5b Window 10 shows according to Fig. 5a However, the locking element 24 of the fitting 14 is in the mounted position. The displacement was carried out according to arrow 48. From a summary of the Figs. 5a and 5b It is evident that fitting 14 is a displacement body. 50 features which backs the first locking hook 38 in the mounted position so that it cannot retract radially inwards and forms a first web 52 a first profile groove 54 of wing 12 behind. The transition from the in Fig. 5a shown lot position in the in Fig. 5b The mounting position of the locking part 24 shown is achieved via a ramp 56.
[0054] Fig. 6a The window 10 shows the locking part 24 in the loose position.
[0055] Fig. 6b The window 10 shows the locking element 24 in the mounted position. It can be seen that the profile groove 54 has a first web 52 and a second web 58. In the mounted position, the first web 52 is engaged by the first locking hook 38, and the second web 58 is engaged by a second locking hook. 60 undermined. Fig. 6b It is also evident that fitting 14 is a housing 62 exhibits.
[0056] Fig. 7 Housing 62 is shown. Housing 62 has identically shaped housing halves. 64, 66 up. From Fig. 7 The inclined plane 56 is for radially widening the first locking hook 38 (see Fig. 6b ) evident. In Fig. 7The stops 40 and 42 for center fixing are visible. Furthermore, it shows Fig. 7 that the housing 62 has a locking hook 68 exhibits.
[0057] Fig. 8 Window 10 shows, where from Fig. 8 It is evident that the locking hook 68 together with a first locking recess 70 a locking device 72 When the locking hook 68 engages in the first locking recess 70 (as shown), the detent part 24 is secured in the assembled position. Conversely, when the locking hook 68 engages in a second locking recess... 74 When the locking device 72 engages, the locking part 24 is secured in the loose position.
[0058] Fig. 9aFigure 1 shows another embodiment of a window 10 with a sash 12 and a fitting 14 that can be mounted on the sash 12. The fitting 14 has a projection (not shown) on a first arm 20 for one-sided engagement with a profile groove (not shown). This allows the fitting 14 to be mounted on the first arm 20 by pivoting it into place.
[0059] Fig. 9b Figure 10 shows window 10, where a second arm 22 is attached to the sash 12 by sliding a locking element 24. In the present embodiment, the locking element 24 is made of plastic.
[0060] Fig. 10a shows a sectional view of window 10 with fitting 14 in the loose position.
[0061] Fig. 10b shows a sectional view of window 10 with fitting 14 in the mounted position.
[0062] Fig. 11aThe window 10 shows the locking part 24 in the area of this sectional view having locking hooks 38, 60, the webs 52, 58 not yet or only slightly engaged behind it.
[0063] Fig. 11b In contrast, window 10 shows the locking hooks 38, 60 engaging behind the webs 52, 58 to secure the fitting 14 to the sash 12.
[0064] In summary, considering all figures of the drawing, the invention relates to a fitting 14 mountable on a sash 12, a window 10, and a door with such a fitting 14, as well as a method for mounting a fitting 14. The fitting 14 has at least one first arm 20 with a locking element 24 and a displacement body 50. The displacement body 50 is displaceable relative to the locking element 24 in the direction of the longitudinal axis of the first arm 20 in order to support a first locking hook 38 in a mounted position, so that the first locking hook 38 cannot move inwards in the mounted position. A ramp 56 is provided between the locking element 24 and the displacement body 50, via which the locking element 24 can be moved from the mounted position to a disengaged position. In the loose position, the first locking hook 38 is no longer supported by the displacement body 50, so that it can move inwards.The fitting 14 can thus be easily mounted and dismounted on the wing 12. Reference symbol list
[0065] 10 Window 12 Sash 14 Hardware 16 First drive rod 18 Second drive rod 20 First arm 22 Second arm 24 Detent part 26 Detent part 28 First mounting step of the hardware 14 on the sash 12 30 Drive rod connection 32 Pin 34 Recess 36 U-shaped bracket 38 First detent hook 40 Stop 42 Stop 44 Second mounting step of the hardware 14 on the sash 12 46 Third mounting step of the hardware 14 on the sash 12 48 Fourth mounting step of the hardware 14 on the sash 12 50 Displacement body 52 First web 54 First profile groove 56 Bevel 58 Second web 60 Second detent hook 62 Housing 64 Housing half 66 Housing half 68 Locking hook 70 first locking recess 72 locking device 74 locking recess
Claims
1. A fitting (14) for arrangement on a sash (12) of a window (10) or a door, wherein the sash (12) has a first profile groove (54) which can be engaged from behind by the fitting (14), and wherein the fitting (14) comprises the following: a) a first arm (20) having a longitudinal axis extendable in parallel with a vertical or horizontal sash column; b) a latching part (24) on the first arm (20) having a resilient first latching hook (38); c) a displacement body (50), wherein the latching part (24) is movable by a relative movement between the displacement body (50) and the latching part (24) from a loose position to a mounted position, wherein the displacement body (50) does not backfill the first latching hook (38) in the loose position, wherein the first latching hook (38) is movable in the loose position and is not movable in the mounted position, in order to securely engage a first projection (52) of the first profile groove (54) from behind in the mounted position, wherein the displacement body (50) and / or the latching part (24) has / have a bevel (56) by means of which the first latching hook (38) can be transferred from the loose position to the mounted position during the relative movement; characterized in that the relative movement can be performed in the direction of the longitudinal axis of the first arm (20); the latching part (24) is designed in the form of a carriage, wherein the first latching hook (38) is designed as a spring projection with hooks; and that the fitting (14) has a locking device (72) by means of which the latching part (24) can be locked in the mounted position and in the loose position so as to be more difficult to displace or so as to be non-displaceable, in the longitudinal direction of the first arm (20).
2. The fitting according to claim 1, in which the first latching hook (38) is pre-tensioned so as to be easily inserted into the first profile groove (54) when the fitting (14) is placed on the sash (12).
3. The fitting according to claim 1 or 2, in which the fitting (14) comprises the following: d) a resilient second latching hook (60) on the latching part (24) opposite the first latching hook (38), wherein the second latching hook (60) is movable in the loose position and is not movable in the mounted position, in order to securely engage a second projection (58) of the first profile groove (54) from behind.
4. The fitting according to claim 3, in which the second latching hook (60) is pre-tensioned so as to be easily inserted into the first profile groove (54) when the fitting (14) is placed on the sash (12).
5. The fitting according to any one of the preceding claims, in which the latching part (24) comprises a clip (36) having a U-shaped cross-section, wherein the first latching hook (38) is formed on a first leg of the clip (36).
6. The fitting according to any one of the preceding claims, in which the fitting (14) includes a drive rod linkage (30) for connection to a drive rod (16) of the fitting (14), wherein the drive rod linkage (30) is locked by the latching part (24) in the loose position and is unlocked in the mounted position.
7. The fitting according to any one of the preceding claims, in which the fitting (14) is in the form of a corner deflector and has a second arm (22), the longitudinal axis of which extends perpendicularly to the longitudinal axis of the first arm (20).
8. The fitting according to claim 7, in which the second arm (22) has a latching part (26) having a resilient first latching hook and a displacement body, wherein the latching part is movable by a relative movement between the displacement body and the latching part from a loose position to a mounted position, wherein the first latching hook is movable in the loose position and is not movable in the mounted position, in order to securely engage a first projection of a second profile groove from behind in the mounted position, wherein the displacement body and / or the latching part has / have a bevel by means of which the first latching hook can be transferred from the loose position to the mounted position during the relative movement, wherein the relative movement can be performed in the direction of the longitudinal axis of the second arm (22).
9. The fitting according to claim 8, in which the first arm (20) and the second arm (22) are of identical construction.
10. The fitting according to claim 7 or 8, in which the latching part (24) of the first arm (20) and / or the latching part (26) of the second arm (22) is / are transferable towards the corner of the fitting (14) into the mounted position.
11. A window (10) or door having a sash (12), a frame and a fitting (14) according to any one of the preceding claims mounted on the sash (12).
12. The window or door according to claim 11, in which the first profile groove (54) merges into the second profile groove without opening.
13. A method for mounting a window (10) or a door according to either one of claims 11 or 12, comprising the method steps: A) placing a first arm (20) of the fitting (14) on a first profile groove (54) of the sash (12), wherein a first latching hook (38) on a latching part (24) of the first arm (20) passes a first projection (52) of the first profile groove (54); B) displacing the latching part (24) relative to a displacement body (50) of the first arm (20) in the longitudinal direction of the first arm (20) in order to transfer the latching part (24) from a loose position to a mounted position by means of a bevel (56) on the displacement body (50) and / or on the latching part (24), wherein the first latching hook (38) is movable in the loose position and is not movable in the mounted position, in order to securely engage the first projection (52) from behind in the mounted position.
14. The method according to claim 13, having the further method steps: C) placing a second arm (22) of the fitting (14) onto a second profile groove of the sash (12), wherein the longitudinal axis of the second arm (22) extends perpendicularly to the longitudinal axis of the first arm (20) and wherein a first latching hook (38) on a latching part (26) of the second arm (22) passes a first projection of the second profile groove; D) displacing the latching part (26) relative to a displacement body of the second arm (22) in the longitudinal direction of the second arm (22) in order to transfer the latching part (26) from a loose position to a mounted position by means of a bevel on the displacement body and / or on the latching part (26), wherein the first latching hook is movable in the loose position and is not movable in the mounted position, in order to securely engage the first projection from behind in the mounted position.
Citation Information
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