Fitting for a tilt and slide window

Abstract

A fitting (3) for a tilt and slide window or tilt and slide door for moving a sash / leaf (2) between a closed position and a put-down position has a locking mechanism (12) with a locking projection (15) that can be mounted in different orientations. The locking projection (15) has four ramps (16, 17; 26, 27) pointing away from one another at different angles of inclination, thereby allowing desired locking forces to be simply adjusted.

Description

[0001] Fittings for a sliding-tilt window

[0002] Description

[0003] The invention relates to a fitting for a sliding-tilt window or door for moving a sash relative to a frame between a closed position and a parked position, with a control link that can be pivoted and moved relative to a rail, with a locking device that can be controlled during the relative movement of the rail relative to the control link, with a locking element of the locking device that is spring-loaded against a slide track and with a locking cam arranged in the slide track.

[0004] Such fittings are often used on tilt-and-slide windows to prevent the sash from accidentally slamming shut, for example, due to drafts. The locking cam of the locking mechanism is overrun by the frame with the locking element when the sash is stowed. However, this movement should be as smooth as possible to comfortably move the sash into a stowed sliding or tilt position. However, the sash should be held securely, for example, in the tilt position. The force required by the locking mechanism to securely hold the sash depends on the sash weight and sash height.

[0005] Such a fitting is known from WP 2019 / 063474 A1, which allows the sash to be easily closed from the tilted position. For this purpose, the fitting has a bypass element that redirects a spring element section of the locking mechanism to reduce or cancel the locking action intended for the tilt position during the closing movement of the fitting.

[0006] However, the known fitting requires an additional component, the bypass element. Furthermore, the fitting cannot be adjusted to different sash weights or desired locking forces. The invention is based on the problem of developing a fitting of the type mentioned above in such a way that it has a particularly simple design and allows for easy adjustment of the desired locking forces.

[0007] This problem is solved according to the invention in that the locking cam has a pair of ramps pointing away from one another, that the two ramps of one locking cam have different angles of inclination and that one of the ramps is opposite the locking element when the fitting is moved into the closed position and the other ramp is opposite the locking element when the fitting is moved into the parked position.

[0008] This design allows the desired locking position to be adjusted by selecting the arrangement of the ramps relative to the locking element. Furthermore, a suitable choice of ramp design ensures that the locking element travels over a flatter ramp on the locking cam during one movement of the sash than in the opposite direction. Thanks to the invention, the additional use of a bypass element is avoided. The fitting is thus particularly simple in design.

[0009] According to another advantageous development of the invention, the fitting can be used for a wide range of applications if the locking cam has four differently inclined ramps, with a flat ramp and a steep ramp facing away from each other. This design allows one or the other pair of ramps to be set in motion by appropriately aligning the locking cam.

[0010] The locking cam could have a central locking screw and, when the locking screw is loosened, be mountable with different ramp alignments relative to the locking element. However, this requires considerable structural complexity with the locking screw. According to another advantageous development of the invention, the ramps can be easily mounted in the intended alignment relative to the locking element if the locking cam is held force-fit in the rail and has a recess for an adjustment tool on the side facing away from the rail. This avoids the need for a separate locking screw. The intended use of the respective ramp pair can still be easily adjusted using the adjustment tool.

[0011] According to another advantageous development of the invention, the friction provided during the adjustment of the locking cam can be easily adjusted if a sliding disk is arranged between the locking cam and the rail.

[0012] According to another advantageous development of the invention, the application area of ​​the fitting is further increased if the inlets of the ramps are arranged at different heights relative to the locking element.

[0013] According to another advantageous development of the invention, various relative movements of the locking element with respect to the cam when the wing is extended can be generated particularly easily if the resilient locking element is connected to a slider coupled to the control link and if the slider is guided in the rail in a displaceable and non-rotatable manner.

[0014] According to another advantageous development of the invention, the fitting is particularly simple in design if the locking element is arranged at one end of a leaf spring and if the other end is positively fastened in the slider.

[0015] According to another advantageous development of the invention, the positive connection of the locking element with the slider is particularly simple if the leaf spring has an angled portion fixed in a groove of the slider.

[0016] According to another advantageous development of the invention, the locking element is designed as a bend in the leaf spring to further simplify the structural design of the fitting. According to another advantageous development of the invention, the locking element forms a sliding ramp facing the slideway, the free end of which projects beyond the locking cam.

[0017] According to another advantageous development of the invention, when the sash is in the tilted position, the locking cam can be easily adjusted if the leaf spring is arranged parallel to the rail and has a recess and if the recess is arranged above the recess of the locking cam for the adjustment tool in the intended parked position of the sash.

[0018] The invention permits numerous embodiments. To further clarify its basic principle, one of them is shown in the drawing and is described below. This shows in

[0019] Fig. 1 shows a section of a sliding-tilt window with a fitting,

[0020] Fig. 2 shows an enlarged section of the fitting from Figure 1 in a parked position,

[0021] Fig.3 the fitting from Figure 2 in a closed position,

[0022] Fig.4 shows a greatly enlarged locking cam of the fitting from Figure 2.

[0023] Figure 1 shows a schematic view of the upper section of a tilt and slide window with a sash 2 positioned away from a frame 1 and with a fitting 3. To simplify the drawing, only the upper vertical members of the frame 1 and the sash 2 are indicated by dash-dotted lines. The sash 2 is positioned away from the frame 1 in a tilt position, in which the sash 2 is tilted about a lower horizontal axis relative to the frame 1, and in a sliding position, in which the sash 2 can be moved relative to the frame 1. The fitting 3 has a rail 4 that can be moved on the frame 1 for connecting two projection scissors 5, 6. Hanging rivets 7, 8 for fastening the sash 2 are arranged at the free ends of the projection scissors 5, 6.

[0024] Figure 2 shows an enlarged view of one of the extension scissors 5 of the fitting 3 from Figure 1. The extension scissors 5 has a holding arm 9 with the suspension rivet 7 and a control link 10 pivotally mounted on the holding arm 9. The other end of the control link 10 is mounted in a slider 11 that is slidably guided on the rail 4. A locking device 12 is arranged on the rail 4 and the slider 11. The locking device 12 has a locking element 14 that can be moved along a slideway 13 and a locking cam 15 fastened to the slideway 13 with a pair of ramps 16, 17 pointing away from one another.

[0025] The locking element 14 is designed as an offset of one end of a leaf spring 18 and has a sliding ramp 19 at the free end. The other end of the leaf spring 18 is positively secured by an angled portion 20 in a groove 21 of the slider 11. The leaf spring 18 extends parallel to the rail 4. Furthermore, the leaf spring 18 has a recess 22 directly above the locking cam 15. In the illustrated retracted position, this recess 22 is located above a recess 23 in the locking cam 15, shown in Figure 4, for an adjustment tool.

[0026] In the parked position shown in Figure 2, in which the sash 2 shown in Figure 1 is removed from the frame 1, the locking element 14 is located on one side of the locking cam 15. This parked position can be a tilt position or a sliding position. When the sash 2 is moved against the frame 1 into a closed position, the slider 11 with the locking element 14 is moved over the locking cam 15 until the control link 10 lies over the rail 4, as shown in Figure 3. In the position shown in Figure 3, the free end of the leaf spring 18 of the locking element 14 with the sliding ramp 19 is opposite the locking cam 15. The sliding ramp 19 projects beyond the locking cam 15, so that the locking element 14 is moved over the locking cam 15 again when the sash 2 is parked again. Figure 4 shows a greatly enlarged perspective view of the locking cam 15 with a sliding disk 24 to be arranged between the locking cam 15 and the rail 4.The locking cam 15 has a rivet pin 25 with which it is pressed into the rail 4. The recess 23 for the adjustment tool (not shown) is arranged centrally to the rivet pin 25. Figure 4 also shows that the locking cam 15 has four ramps 16, 17; 26, 27 equipped with different angles of inclination. At least one of the ramps 16 is arranged above a shoulder 28. The shoulder 28 causes the inlets of the ramps 16, 17; 26, 27 to have different heights relative to the locking element 14. By appropriately rotating the locking cam 15 with pairs of the ramps 16, 17; 26, 27 pointing away from one another into the slide track 13 described in Figure 2, the locking forces when opening and closing the window can be adjusted.

Claims

Patent claims 1 . Fitting (3) for a sliding-tilt window or door for moving a sash (2) relative to a frame (1) between a closed position and a parked position, with a control link (10) which can be pivoted and displaced relative to a rail (4), with a locking device (12) which can be controlled during the relative movement of the rail (4) relative to the control link (10), with a locking element (14) of the locking device (12) which is resiliently prestressed against a slide track (13) and with a locking cam (15) arranged in the slide track (13), characterized in that the locking cam (15) has a pair of ramps (16, 17; 26, 27) pointing away from one another, that the two ramps (16, 17; 26, 27) of one locking cam (15) have different angles of inclination and that one of the ramps (16, 17; 26, 27) Locking element (14) when the fitting is moved into the closed position and the other ramp (16, 17;26, 27) is opposite the locking element (14) when the fitting (3) is moved into the parked position.; 2. Fitting according to claim 1, characterized in that the locking cam (15) has four differently inclined ramps (16, 17; 26, 27), wherein in each case a flat ramp (16, 17; 26, 27) and a steep ramp (16, 17; 26, 27) point away from each other.

3. Fitting according to claim 1 or 2, characterized in that the locking cam (14) is held in the rail (4) in a force-fitting manner and has a recess (23) for an adjustment tool on the side facing away from the rail (4).

4. Fitting according to at least one of claims 1 to 3, characterized in that a sliding disc (24) is arranged between the locking cam (15) and the rail (4).

5. Fitting according to at least one of claims 1 to 4, characterized in that inlets of the ramps (16, 17; 26, 27) are arranged at different heights relative to the locking element (14).

6. Fitting according to at least one of claims 1 to 5, characterized in that the resilient locking element (14) is connected to a slider (11) coupled to the control link (10) and that the slider (11) is guided displaceably and non-rotatably in the rail (4).

7. Fitting according to at least one of claims 1 to 6, characterized in that the locking element (14) is arranged at one end of a leaf spring (18) and that the other end is positively fastened in the slider (11).

8. Fitting according to claim 7, characterized in that the leaf spring (18) has an angled portion (20) fastened in a groove (21) of the slider (11).

9. Fitting according to claim 7 or 8, characterized in that the locking element (14) is designed as an offset of the leaf spring (18).

10. Fitting according to claim 9, characterized in that the offset forms a sliding ramp (19) facing the sliding track (13), the free end of which projects beyond the locking cam (15).

11. Fitting according to at least one of claims 3 to 10, characterized in that the leaf spring (18) is arranged parallel above the rail (4) and has a recess (22) and that the recess (22) is arranged above the recess (23) of the locking cam (15) for the adjusting tool in the intended parked position of the wing (2).

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