Spring-loaded activator for a sliding sash with motion support

Abstract

The invention relates to a fitting for assisting the movement of a parallel-opening sash of a sliding door or window. A spring assembly is coupled to a follower, which can be locked in a tensioned position. A frame-side activator, which can be coupled to the follower for force transmission, has a movable coupling element that engages the follower when coupled. The mobility of the coupling element enables automatic height compensation between the follower and the activator. Preferably, guide elements are provided to raise the coupling element of the activator to a defined position relative to the follower when the sash is closed.

Description

Background of the invention

[0001] The invention relates to a hardware arrangement for a sash that can be attached to and removed from the frame of a sliding window or sliding door in a horizontal transverse direction (parallel-positionable), and which, in the position removed from the frame (positioned), is movable in a horizontal longitudinal direction along the frame, comprising a control unit with a mounting part for fixing it to the sash and an extension part that is displaceable in the transverse direction relative to the mounting part; a movement unit attached to the extension part comprising a body, a spring assembly, and a follower, wherein the follower can be locked onto the body in a tensioned position of the spring assembly; and an activator for the follower. The invention further relates to a locking arrangement for a building opening comprising a frame, a sash, and such a hardware arrangement.

[0002] Such a hardware arrangement or locking arrangement is known from WO 2021 / 018850 A1. In this previously known hardware arrangement, the activator is fixedly mounted on the frame, while the movement unit is attached to the awning and positioned vertically below the activator. For the activator to interact with the follower, its vertical position relative to the sash or movement unit must be set quite precisely. This is complex during installation. Furthermore, the vertical alignment of the sash with the movement unit can change during use, for example, due to differing thermal expansion rates of various components.

[0003] Sliding doors are known that can only move in the opening direction. These are used particularly for interior doors without special sealing requirements.

[0004] For improved sealing, sliding sashes can be designed as lift-and-slide sashes or as sliding sashes that can be opened parallel to the frame or sash plane. Parallel-opening sliding sashes, in particular, allow for a particularly tight seal against the frame when closed. Furthermore, with heavier sashes, less force is required to close or close them horizontally against or away from the frame than to raise or lower a lift-and-slide sash vertically.

[0005] Further fitting arrangements with an activator fixed to a frame for a power-assisted or damped sliding sash are known from EP 4 019 727 A1, WO 2018 / 070 656 A1 (both relating to a lift-and-slide sash), EP 3 221 539 A1 (in particular relating to a lift-and-slide sash) or JP 2005 350912 A (relating to a sash that can only be moved longitudinally).

[0006] EP 3 246 500 B1 describes a damper arrangement for a sliding door that is spring-mounted on a frame.

[0007] From KR 102519537 B1, a claw pivotably mounted on a frame for interaction with a driver of a damper attached to a sliding sash is known. The sliding sash can be a lift-and-slide sash or a sliding sash that is only longitudinally movable.

[0008] Another lift-and-slide sash with a retraction device is known from EP 3 034 752 B1. In order to enable a projection arranged on the frame to engage with a follower of the retraction device arranged on the sash after the sash has been lowered during trickle ventilation, so that decoupling has occurred without the follower being in a pivoted decoupling position, the projection is spring-mounted on the frame.

[0009] DE 20 2014 001 516 U1 discloses a sliding sash with an end-position retraction and end-position damping device, whereby a gas spring, via a push rod or piston rod, decelerates and dampens the impact of the sliding sash into the closing position, and, conversely, the gas spring, which was tensioned when the sliding sash was previously opened, automatically moves the sliding sash into the closing position in the last few centimeters of its travel. The gas spring is axially displaceable via a guide pin at the end of the push rod, relative to the direction of movement of the sliding sash, and pivotable transversely thereto. A U-shaped drive and control unit is also mounted on the axis of rotation, consisting of two legs and a central body connectable to the legs. This central body has spaced-apart guide pins.The guide pins are guided in a straight section of a cam track in the direction of movement of the sliding wing and, while the push rod is simultaneously retracted into a housing of the gas spring, move into a park position in which energy is stored.

[0010] DE 20 2020 106 013 U1 discloses a retraction device for a sliding element of a sliding assembly, comprising a locking hook which, within a retraction housing, is initially guided linearly displaceable from a retracted end position against a retraction direction against the action of a restoring force and then tilts about a tilting axis into a detent position. The locking hook has an end face projecting from the retraction housing with an open recess for an activator, which has a first stop surface facing against the retraction direction and a second stop surface facing in the retraction direction, between which the activator is received. The first stop surface of the locking hook is inclined to the retraction direction and to the tilting axis. Object of the invention

[0011] The object of the invention is to enable the simple assembly of a motion-assisted, parallel-adjustable sliding wing and to avoid malfunctions in use. Description of the invention

[0012] This problem is solved according to the invention by a fitting arrangement according to claim 1 and a locking arrangement according to claim 17. The respective dependent claims and the description specify advantageous embodiments. Fitting arrangement according to the invention

[0013] According to the invention, a hardware arrangement is provided for a sash of a sliding window or sliding door. The hardware arrangement allows the sash to be positioned against and removed from the frame of the sliding window or sliding door in a horizontal transverse direction. In the position removed from the frame (opened), the sash is movable in a horizontal longitudinal direction along the frame. It is therefore a hardware arrangement for a so-called parallel-opening sash. The longitudinal and transverse directions are typically orthogonal to each other.

[0014] For the purposes of describing the present invention, directional terms such as horizontal, vertical, top or bottom refer to a position in use or intended installation position of the fitting arrangement.

[0015] The hardware assembly comprises a control unit with a mounting part for fixing it to the sash and a tilting part that is laterally movable relative to the mounting part. By moving the tilting part relative to the mounting part, the sash can be moved against or away from the frame. The tilting part may have at least one guide roller and / or at least one slider to be guided longitudinally along a guide rail of the frame. In the assembled state of the hardware assembly, the mounting part is typically fixed to the sash and cannot move relative to it. The tilting part and the mounting part may be guided directly against each other.

[0016] The fitting assembly further comprises a movement unit attached to the ejector element, consisting of a body, a spring assembly (in particular a spring-damper unit), and a follower. The spring-damper unit may include a gas spring and / or an oil damper. The follower is coupled to the spring-damper unit. The follower can be locked onto the body in a tensioned position of the spring assembly. In this way, potential energy can be stored in the spring assembly. This potential energy can be released by disengaging the follower, particularly to assist a closing movement.

[0017] The spring assembly is preferably designed to assist the closing movement of the sash. When the sash is opened, the spring of the assembly is tensioned. The tensioned position is secured by the locking mechanism of the follower against the body. When the sash is closed, the locking mechanism of the follower is released, allowing the spring assembly to release the stored potential energy to assist in moving the sash into the closed position. A damper in a spring assembly designed as a spring-damper unit can slow down the closing movement. This prevents the sash from slamming against the frame. The damper can achieve this by dissipating energy, converting the potential energy of the spring and / or the kinetic energy of the sash into heat.

[0018] The fitting assembly also features an activator for the follower. The activator and the follower can be coupled and uncoupled. In the coupled state, the spring assembly can be tensioned via the activator acting on the follower. Likewise, in the coupled state, the spring assembly, supported by the follower on the frame-side activator, can assist movement of the sash with the motion unit. In the uncoupled state, the motion unit does not exert any longitudinal force on the sash.

[0019] The coupling is typically established only over a portion of the sash's longitudinal movement with the hardware assembly. As soon as the follower engages on the frame during tensioning of the spring mechanism, particularly when opening the sash, the coupling is released. The sash is then free to move longitudinally. Conversely, particularly when closing the sash, the coupling is advantageously established when the follower reaches the activator. The activator, mounted on the frame, can thus interact with the spring mechanism, especially to supply or discharge energy. The activator also advantageously serves to trigger the energy release from the spring mechanism.

[0020] According to the invention, the activator comprises a retaining element that can be fixed to the frame and a coupling element that is movable relative to the retaining element between a disengaged and a retracted position for interaction with the follower. In the mounted state, the coupling element is typically movable in the vertical direction. Compared to a rigid activation element, the mobility of the coupling element increases the permissible range of distance between the movement unit and the frame, in particular from an upper horizontal mullion of the frame. If the sash or movement unit is located close to the horizontal mullion, the coupling element is only slightly disengaged in the coupled state. If there is a greater distance between the sash or movement unit and the horizontal mullion, the coupling element is further disengaged in the coupled state to ensure reliable coupling with the follower.During installation, the activator requires less precise vertical alignment relative to the movement unit or wing. Changes in position occurring during use, for example due to temperature differences, are automatically compensated for.

[0021] The drive element can have two prongs to engage the coupling part of the activator on two opposite sides with one prong each when the activator interacts with the spring mechanism. This enables force transmission in both directions along the longitudinal axis.

[0022] Preferably, the coupling element of the activator is pre-tensioned into the disengaged position, particularly by means of a compression spring. This ensures that the coupling element automatically and reliably moves into the disengaged position when the coupling with the driver is released. A magnetic pre-tension is also conceivable.

[0023] The travel of the coupling element between the engaged and disengaged positions can be at least 2 mm, preferably at least 3 mm, and / or at most 10 mm, preferably at most 8 mm. This allows for significantly simplified assembly and effective compensation of positional changes without excessively increasing the size of the activator.

[0024] Preferably, the follower is lowered in the latched position compared to an unlatched position. Lowering it when latching allows the coupling of the activator to the follower to be released, particularly when opening the sash. Conversely, the follower can be raised from the latched position, particularly when closing the sash, thus establishing the coupling with the coupling element.

[0025] Particularly preferably, the body of the motion unit has a ramp at a free end, especially at the front end (particularly in the closing direction), and the follower can be locked onto the body in the area of ​​the free end. The ramp allows the coupling part of the activator to move from the disengaged position towards the retaining part when the body (particularly when closing the sash) is moved longitudinally along the activator. This facilitates the coupling of the activator to the follower.

[0026] The body of the motion unit can have two side parts between which the driver is guided. In particular, each side part can have a guide groove with an angled end section. The driver can be guided in the guide grooves by means of pins. The angled end sections allow the driver to lock into place when the spring mechanism is tensioned. The main sections of the guide grooves can run longitudinally.

[0027] Preferably, the side panels are beveled at the free end. The beveled ends of the side panels can be part of the ramp or form the ramp itself.

[0028] The side panels can be joined at their free ends by a beveled connecting piece. This connecting piece stabilizes the body. The bevel of the connecting piece can be part of the ramp or form the ramp itself.

[0029] The coupling element of the activator advantageously has at least one projection for bearing against one of the side panels. This projection can contact the (upper) longitudinal edges of the side panels to establish a defined (vertical) distance between the coupling element and the drive mechanism. When the sash closes, the projection can slide off the beveled ends of the side panels to lift the coupling element.

[0030] The coupling element can be fitted with a transverse pin, preferably projecting on both sides, which forms at least one projection. This enables efficient manufacturing. A projection on both sides reduces the risk of the coupling element jamming in the holding element when lifted. The transverse pin typically extends in the transverse direction.

[0031] The coupling part of the activator can be chamfered at its end facing the movement unit. The chamfered end can facilitate the (initial) lifting of the coupling part by means of a ramp, particularly at the connecting part between the side sections.

[0032] Further lifting of the coupling element can be achieved via contact between at least one lateral projection and at least one of the side parts. This reliably prevents the driver from unintentionally disengaging before the coupling element has reached a suitable longitudinal position for interaction. Instead, the coupling element's contact with the body via the projection ensures a defined alignment of the coupling element with the driver, allowing them to reliably engage and disengage.

[0033] A pin can engage the retaining and coupling parts of the activator. The pin can define the engaged and / or disengaged position. The pin can prevent the coupling and retaining parts from separating.

[0034] The activator's mounting bracket can be attached to a mounting plate that can be screwed to the frame. This simplifies the installation of the activator on the frame.

[0035] The spring assembly can be connected to the driver via a connecting rod, in particular if the connecting rod extends through the ejector. Arranging the ejector between the spring assembly and the driver allows the sash to be guided along a guide rail near its front end (in the closing direction) by means of the ejector. The connecting rod can extend in a straight line. A straight connecting rod is particularly stable and can be manufactured cost-effectively. The connecting rod can extend through a recess in the ejector. The recess allows the connecting rod to be guided from one side of the ejector to the other in a space-saving manner.

[0036] The spring assembly can be connected to the body at one end, preferably by a pivot. A pivot connection simplifies the assembly of the spring assembly by first making the pivot connection and then pivoting the other end of the spring assembly into the body. The spring assembly can be connected at the other end to a slide that is slidably guided on the body. Preferably, the slide is guided on the body in two planes. This reliably prevents the slide from tilting. The connecting rod can be provided to engage (be pivoted to) the slide. This simplifies the assembly of the connecting rod.

[0037] The fitting assembly can include a mechanism for controlling the movement of the awning element in the transverse direction relative to the mounting part. This allows for convenient operation of the locking mechanism. By actuating the mechanism, the awning element can be moved relative to the mounting part. The mechanism is typically supported by both the awning element and the mounting part. A cam track can be formed in both the mounting part and the awning element of the control unit, into which a pin of a drive rod of the mechanism engages. A cam track section in the awning element preferably runs at an angle to a cam track section in the mounting part. By moving the pin in the cam tracks, the awning element is thus moved relative to the mounting part. The mechanism can include a handle, in particular whereby turning the handle causes a movement of the drive rod and thus the transverse movement of the sash.

[0038] The fitting assembly can include an additional control unit with another fixed mounting part and another movable extension part. This additional control unit can passively follow the movement of the control unit. Alternatively, the movement of the extension part of the additional control unit relative to the additional mounting part can be actively controlled by the mechanism (as described above).

[0039] The fitting arrangement according to the invention can be part of a locking arrangement according to the invention described below. Features explained in connection with the locking arrangement can also be provided in the fitting arrangement according to the invention. Inventive locking arrangement

[0040] The present invention also includes a closure arrangement for a building opening. The closure arrangement can, in particular, be designed as a sliding window or a sliding door.

[0041] The locking mechanism includes a frame. The frame is designed for permanent installation on the building. When installed, the frame is typically positioned around the perimeter of the building opening. The building opening is typically located in an exterior wall of a building. Alternatively, the building opening can be located in an interior wall of the building.

[0042] Furthermore, the locking arrangement has a wing and a fitting arrangement according to the invention as described above.

[0043] The control unit of the hardware assembly allows the sash, particularly when in a closed position, to be moved away from (removed from) the frame or brought close to the frame so that it comes into contact with it. When the sash is moved away from the frame, its orientation relative to the frame typically remains unchanged. In the moved position, the sash extends parallel to the frame, or in the position it would in the closed position. The moving movement in the horizontal direction can be perpendicular to a plane of extension of the sash that contains the longitudinal direction.

[0044] The frame can have a guide rail along which the awning sash is movably guided in the longitudinal direction. In the closed position, the sash slides along the guide rail. The activator can be located within the guide rail. This can protect the activator from dirt. Furthermore, the activator can be concealed within the guide rail for a more aesthetically pleasing appearance. This also prevents objects from becoming caught on the activator during transport when the sash is open.

[0045] Further features and advantages of the invention will become apparent from the description, the claims, and the drawings. According to the invention, the features mentioned above and those further elaborated can each be used individually or in any suitable combination. 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

[0046] The invention is illustrated in the drawing and described using exemplary embodiments. Fig. Figure 1 shows a closure arrangement according to the invention in the form of a sliding door with a fitting arrangement according to the invention, in a schematic front view; Fig. Figure 2 shows a schematic horizontal section through the locking mechanism of Fig. 1; Fig. Figure 3 shows an activator for a fitting arrangement according to the invention, in a schematic perspective view; Fig. Figure 4 shows a component assembly with a motion unit and a control unit for a fitting arrangement according to the invention, in a schematic perspective view; Fig. Figure 5 shows a schematic diagram of a control unit with a wing-fixed mounting part and a laterally movable extension part, for a fitting arrangement according to the invention; Fig. Figure 6 shows a schematic cross-section through an upper horizontal strut of a shutter frame of the shutter assembly of Fig. 1 with the activator arranged in a guide rail; Fig. Figure 7 shows a fitting arrangement according to the invention when a movement unit approaches an activator which is arranged at a small distance above the movement unit, in a schematic side view, wherein a side part of the movement unit facing the viewer is not shown; Fig. Figure 8 shows the fitting arrangement of Fig. 7 with the movement unit advanced further in the closing direction; Fig. 9 shows the fitting arrangement of Fig. 7 with the movement unit advanced even further in the closing direction, wherein a coupling part of the activator is coupled to a driver of the movement unit; Fig. Figure 10 shows a fitting arrangement according to the invention when a movement unit approaches an activator which is arranged at a large distance above the movement unit, in a schematic side view, wherein a side part of the movement unit facing the viewer is not shown; Fig. Figure 11 shows the fitting arrangement of Fig. 10 with the movement unit advanced further in the closing direction; Fig. Figure 12 shows the fitting arrangement of Fig. 10 with the movement unit advanced even further in the closing direction, wherein a coupling part of the activator is coupled to a driver of the movement unit.

[0047] Fig. Figure 1 shows a closure assembly 10 for a building opening. The closure assembly 10 is designed here as a sliding door. The closure assembly 10 comprises a frame 12 and a movable sash 14. The closure assembly 10 also includes a fixed, non-opening panel 16.

[0048] In Fig. In Figure 1, the sash 14 is in a closed position, covering a door opening 18. The door opening 18 can be released by sliding the sash 14 in front of the fixed panel 16. To open the locking mechanism 10, the sash 14 is moved (removed) from the frame 12 in a horizontal transverse direction Q while maintaining its parallel orientation, as shown in Figure 1. Fig. 2 is shown. The transverse direction Q of the frame 12, here in particular a vertical mullion 19a between the door opening 18 and the fixed panel 16, a vertical mullion 19b on the other side of the door opening 18 and an upper horizontal mullion 24 (compare Fig. 1) The removed wing 14 can be moved in a horizontal longitudinal direction L along the frame 12 to open or close the door opening 18.

[0049] It is understood that parts of the frame 12 may overlap the sash 14 in the transverse direction Q and, if necessary, touch it in the longitudinal direction L, even when the sash 14 is in the open position. The open or removed position of the sash 14 from the frame 12 is characterized in particular by the fact that the contact of the sash 14 or the frame 12 with a seal (not shown) arranged in the transverse direction Q between the sash 14 and the frame 12 is eliminated, so that no sliding occurs on the seal when the sash 14 is moved in the longitudinal direction L.

[0050] Wing 14 is via a in Fig. 1. The hardware arrangement 20, shown in dashed lines, is guided on the frame 12. The hardware arrangement 20 serves in particular to support the complete closing of the sash 14 in the longitudinal direction L or closing direction S (here to the left) and to decelerate the closing movement of the sash 14 before it abuts the frame 12.

[0051] To support the weight of the sash 14, a guide rail can be provided on its underside, on which the sash 14 rests via a carriage or similar device in a known manner (not shown in detail). The sash 14 does not, in principle, perform any intended vertical movement relative to the frame during an opening or closing process. Unintended vertical movement can occur, for example, due to differential thermal expansion or wear.

[0052] The fitting assembly 20 includes an activator 22, which is attached to the upper horizontal rail 24 of the frame 12. The activator 22 has a retaining plate 26 screwed to the horizontal rail 24 (see figure). Fig. 3.

[0053] The fitting assembly 20 further comprises a movement unit 28 and a control unit 30, which here form a common assembly for mounting on the sash 14, compare Fig. 1 and Fig. 4. This assembly is mounted on an upper horizontal spar 32 of the wing 14, compare Fig. 1. The movement unit 28 works together with the activator 22 to support and dampen the closing movement, as will be explained in more detail below.

[0054] The control unit 30 enables and effects the movement of the wing 14 in the transverse direction Q. Fig. Figure 5 shows the control unit 30 schematically to explain its function.

[0055] The control unit 30 has a mounting part 34 for attaching it to the wing 14 and an extension part 36 that is movable relative to the mounting part 34. A first cam section 40, extending parallel to a connecting rod 38, is formed in the mounting part 34. A second cam section 42 is formed in the extension part 36. The cam section 42 in the extension part 36 runs obliquely to the cam section 40 in the mounting part 34, i.e., to the connecting rod 38. A pin 44, held on the connecting rod 38, engages in both cam sections 40 and 42. When the connecting rod 38 is moved, the extension part 36 is thereby displaced in the transverse direction Q relative to the mounting part 34. The displacement of the connecting rod 38 can be effected by turning a handle 46 (see figure). Fig. 1. The handle 46 and the connecting rod 38 with the pin 44 are parts of a mechanism for controlling the lateral movement of the wing 14.

[0056] The movement unit 28 is held on the display part 36, compare Fig. 4. In the assembled state, guide rollers 48 of the motion unit 28 engage in a guide rail 50 (compare Fig. 6) on the upper horizontal member 24 of the frame 12.

[0057] The movement unit 28 has a body 52 with two side parts 54, compare Fig. 4. The side panels 54 extend in the longitudinal direction L on both sides of the display panel 36.

[0058] A driver 56 is guided between the front sections of the side panels 54 (in the closing direction S). The driver 56 engages with pins 58 in guide grooves 60 of the side panels 54. The guide grooves 60 extend essentially in the longitudinal direction L. At the front end 62 of the body 52 (in the closing direction S), the guide grooves 60 are angled downwards. This allows the driver 56 to be lowered and locked in place at the front end 62.

[0059] In the rear section of the body 52 (in the closing direction S), a spring assembly 64, here a spring-damper unit with a gas spring and an oil damper housed in a common casing, is arranged. The spring assembly 64 is articulated at one end to the side parts 54 by means of a bolt 66. At the other end, the spring assembly 64 is connected to a slide 70 by means of another bolt 68 (see also...). Fig. 7. The slide 70 is guided in two pairs of vertically offset grooves 72, 74 of the side parts 54, see in particular Fig. 4. A connecting rod 76, which extends through the extension part 36, connects the slide 70 to the driver 56, see in particular Fig. 7. The driver 56 is pivotally held on the connecting rod 76 so that, when the spring assembly 64 is tensioned, it can be locked into the angled end sections of the guide grooves 60, as shown in Fig. 7 is shown. Fig. Figure 4, in contrast, shows a relaxed configuration of the spring device 64, whereby it is understood that even in the relaxed configuration the spring device 64 can still exert a force on the driver 56, which pulls it away from the free end 62.

[0060] The activator 22 enables force transmission between the motion unit 28 and the frame 12 during the final part of the movement path when closing the sash 14, and during the first part of the movement path when opening the sash 14. In this way, the sash 14 can be pulled into the position that is fully closed (but nevertheless separated from the frame) in the longitudinal direction L and decelerated before it strikes the frame 12. Movement in the transverse direction is neither initiated nor supported by the motion unit 28; this movement is effected by actuating the handle 46 via the control unit 30.

[0061] When the wing 14 is opened (movement in the longitudinal direction L opposite the closing direction S), the spring device 64 is re-tensioned. Advantageously, no damping force acts during opening.

[0062] After the spring mechanism 64 is tensioned and the driver 56 is engaged on the body 52, the activator 22 is decoupled from the driver 56. This coupling must be re-established when the wing 14 is closed.

[0063] For coupling with the activator 22, the driver 56 in the illustrated embodiment has two legs 78, 80 (compare Fig. 4) to connect a coupling part 82 of the activator 22 (compare Fig. 3) to overlap on both sides (when viewed in the longitudinal direction L). To enable reliable coupling regardless of positional tolerances, the coupling element 82 of the activator 22 is movable in the vertical direction (in the installed state).

[0064] In the illustrated embodiment, the coupling part 82 is guided in a holding part 84, see in particular the figure. Fig. 6. A compression spring 86, here a cylindrical helical spring, pre-tensions the coupling part 82 downwards (especially towards the driver 56). A pin 88 can engage a bore in the retaining part 84 and an elongated hole 90 in the coupling part 82 to hold these two parts 82, 84 together and to define an engaged and an disengaged position. Fig. Figure 6 shows the disengaged position. The coupling part 82 can move between the engaged and disengaged positions by, for example, 4 mm relative to the retaining part 84. Furthermore, the compression spring 86 can be supported against the pin 88.

[0065] The retaining part 84 is firmly connected to the retaining plate 26, which in turn is fixed to the frame 12. The activator 22 is mounted in the guide rail 50.

[0066] To facilitate the engagement of the coupling part 82 of the activator 22 between the legs 78, 80 of the driver 56 when the wing 14 is closed, the body 52 of the movement unit 28 has a ramp 92 at its free end 62, see in particular Fig. 4. A lower part 92a of the ramp 92 is formed on a chamfered connecting part 94, which is arranged at the free end 62 between the two side parts 54 and preferably connects them together. An upper part 92b of the ramp 92 is formed by chamfers on the front of the side parts 54.

[0067] At its lower end, which is assigned to the ramp 92, the coupling part 82 of the activator 22 is chamfered, compare Fig. 3 and Fig. 7. This can facilitate sliding down the lower part 92a of the ramp 92.

[0068] To guide the coupling part 82 along the upper part 92b of the ramp 92, a transverse pin 96 is inserted through the coupling part 82, projecting on both sides (in the transverse direction Q). The projections formed by the transverse pin 96 can interact with the side parts 54 of the body 52, as will be explained in more detail below.

[0069] Fig. Figure 7 shows a configuration in which the wing is 14 (compare Fig. 1) or the movement unit 28 is arranged vertically very close to the upper horizontal mullion 24 of the frame 12 or to the retaining plate 26 with the retaining part 84 of the activator 22. When the sash 14 closes, the beveled end of the coupling part 82 first contacts the bevel on the connecting part 94, which forms the lower part 92a of the ramp 92. As the sash 14 continues to close, the coupling part 82 is lifted and the projecting transverse pin 96 comes into contact with the beveled ends of the side parts 54, which form the upper part 92b of the ramp 92. During this process, the coupling part 82 is increasingly lifted (i.e., moved from the extended position towards the retracted position).

[0070] Finally, the projecting transverse pin 96 comes into contact with the upper longitudinal edges 98 of the side parts 54, compare Fig. 8. This establishes a vertically defined position of the coupling part 82 relative to the driver 56. Fig. At point 8, the coupling part 82 is in the inset position. The movement unit 28, or the wing 14, is therefore in its highest possible position relative to the activator 22 or horizontal spar 24. It can be seen that the coupling part 82 protrudes clearly from the retaining part 84 at the top, making the elongated hole 90 visible.

[0071] As the wing 12 closes further, the leg 80 of the driver 56 contacts the coupling part 82, thereby releasing the driver 56 from its detent. The spring mechanism 64 then pulls the wing 14 further into the closed position, compare Fig. 9. The projecting transverse pin 96 slides along the longitudinal edges 98 of the side parts 54. The engagement depth of the coupling part 82 between the legs 78, 80 of the driver 56 remains constant.

[0072] When the wing 14 is opened (movement against the closing direction S), the driver 56 is pulled by the activator 22 towards the free end 62 until the driver engages with its pins 58 in the angled end sections of the guide grooves 60. At the same time, the leg 78 of the driver 56 drops, releasing the coupling part 82 of the activator 22 (compare Fig. 8). As it opens further, the coupling part 82 slides downwards on the ramp 92 (compare Fig. 7) The sequence of movements during decoupling corresponds, in reverse order, to the sequence shown above for coupling.

[0073] Fig. Figure 10 shows a configuration in which the wing is 14 (compare Fig. 1) or the movement unit 28 is located very far vertically from the upper horizontal member 24 of the frame 12 or from the retaining plate 26 with the retaining part 84 of the activator 22. When the sash 14 closes, the coupling part 82 moves over the connecting part 94 without contacting the lower part 92a of the ramp 92. Rather, in this configuration, the projecting transverse pin 96 directly contacts the chamfered ends of the side parts 54, which form the upper part 92b of the ramp 92 (compare in this respect Fig. 4).

[0074] As the wing 14 closes further, the projecting transverse pin 96 comes to rest against the upper longitudinal edges 98, compare Fig. 11. In this case, the coupling part 82 is only raised slightly (compare the small overhang at the top of the retaining part 84). The position of the coupling part 82 relative to the movement unit 28 corresponds to that of Fig. 8; during the configuration of Fig. 11 is simply the retaining plate 26 with the retaining part 84 further away in a vertical direction from the movement unit 28.

[0075] Here too, as the wing 12 continues to close, the leg 80 of the driver 56 contacts the coupling part 82, thereby releasing the driver 56 from its detent. The spring mechanism 64 then pulls the wing 14 further into the closed position, compare Fig. 12. The projecting transverse pin 96 slides along the longitudinal edges 98 of the side parts 54. The engagement depth of the coupling part 82 between the legs 78, 80 of the driver 56 always remains constant and corresponds even to the configuration with the largest possible vertical distance ( Fig. 10, Fig. 11 to Fig. 12) that of the configuration with the smallest possible vertical distance ( Fig. 7, Fig. 8 to Fig. 9).

[0076] In summary, the invention relates to a fitting for assisting the movement of a parallel-opening sash of a sliding door or window. A spring assembly is coupled to a follower, which can be locked in a tensioned position. A frame-side activator, which can be coupled to the follower for force transmission, has a movable coupling element that engages the follower when coupled. The mobility of the coupling element enables automatic height compensation between the follower and the activator. Preferably, guide elements are provided to raise the coupling element of the activator to a defined position relative to the follower when the sash is closed. Reference symbol list 10 Locking arrangement 12 bezel frames 14 wings 16 Festfeld 18 Door opening 19a, 19b Vertical stiles of the frame 12 20 Fitting arrangement 22 Activator 24 Horizontal frame member 12 26 Mounting plate 28 movement units 30 control unit 32 Horizontal spar of the wing 14 36 Mounting part 36 exhibit section 38 Connecting rod 40 first set section in assembly part 34 42 second scenery section in the exhibition area 36 44 pins of the connecting rod 38 46 handle 48 leadership roles 50 guide rail 50 52 Corpus 54 side panels 56 drivers 58 pins of the drive 60 guide grooves 62 in closing direction S front end 64 Spring assembly 66, 68 bolts 70 sleds 72, 74 grooves 76 Connecting rod 78, 80 thighs 82 Coupling part 84 Holding part 86 Compression spring 88 pens 90 slotted hole 92 Ramp 92a lower part of the ramp 92 92b upper part of the ramp 92 94 Connecting part 96 cross pins 98 longitudinal edges L Longitudinal direction Q transverse direction S Closing direction

Claims

Fitting arrangement (20) for a sash (14) that can be attached to and removed from a frame (12) of a sliding window or sliding door in a horizontal transverse direction (Q), and which is movable in a horizontal longitudinal direction (L) along the frame (12) in the position removed from the frame (12), comprising: - a control unit (30) with a mounting part (34) for fixing to the sash (14) and an extension part (36) that is movable relative to the mounting part (34) in the transverse direction (Q); - a movement unit (28) attached to the extension part (36) comprising a body (52), a spring assembly (64), in particular a spring-damper unit, and a driver (56), wherein the driver (56) can be locked onto the body (52) in a tensioned position of the spring assembly (64);- an activator (22) for the driver (56), characterized in that the activator (22) has a retaining part (84) that can be fixed to the frame (12) and a coupling part (82) that is movable relative to the retaining part (84) between a disengaged and a retracted position for cooperating with the driver (56). Fitting arrangement (20) according to claim 1, wherein the coupling part (82) is pre-tensioned into the disengaged position, in particular by means of a compression spring (86). Fitting arrangement (20) according to one of the preceding claims, wherein a path of the coupling part (82) between the engaged and the disengaged position is at least 2 mm, preferably at least 3 mm, and / or at most 10 mm, preferably at most 8 mm. Fitting arrangement (20) according to one of the preceding claims, wherein the driver (56) is lowered in the latched position compared to an unlatched position. Fitting arrangement (20) according to one of the preceding claims, wherein the body (52) of the movement unit (28) has a ramp (92) at a free end (62), in particular wherein the driver (56) can be locked onto the body (52) in the area of ​​the free end (62). Fitting arrangement (20) according to one of the preceding claims, wherein the body (52) of the movement unit (28) has two side parts (54) between which the driver (56) is guided. Fitting arrangement (20) according to claim 6, wherein the side parts (54) are chamfered at the free end (62). Fitting arrangement (20) according to claim 6 or 7, wherein the side parts (54) are connected to each other at the free end (62) by a chamfered connecting part (94). Fitting arrangement (20) according to one of claims 6 to 8, wherein at least one projection for support on one of the side parts (54) is provided on the coupling part (82) of the activator (22). Fitting arrangement (20) according to claim 9, wherein a transverse pin, preferably projecting on both sides, is arranged in the coupling part (82), which forms the at least one projection. Fitting arrangement (20) according to one of the preceding claims, wherein the coupling part (82) of the activator (22) is chamfered at its end facing the movement unit (28). Fitting arrangement (20) according to one of the preceding claims, wherein a pin (88) extends through the retaining part (84) and the coupling part (82) of the activator (22). Fitting arrangement (20) according to one of the preceding claims, wherein the retaining part (84) of the activator (22) is attached to a retaining plate (26) that can be screwed to the frame (12). Fitting arrangement (20) according to one of the preceding claims, wherein the spring device (64) is connected to the driver (56) via a connecting rod (76), in particular wherein the connecting rod (76) extends through the extension part (34). Fitting arrangement (20) according to claim 14, wherein the spring device (64) is connected at one end, preferably pivotally, to the body (52) and at the other end to a slide (70) which is slidably guided on the body (52), and wherein the connecting rod (76) engages the slide (70). Fitting arrangement (20) according to one of the preceding claims, further comprising a mechanism for controlling a movement of the display part (36) in the transverse direction (Q) relative to the mounting part (34). Closure arrangement (10) for a building opening, in particular a sliding window or sliding door, comprising: - a frame (12); - a sash (14); - a fitting arrangement (20) according to one of the preceding claims. Closure arrangement (10) according to claim 17, wherein the frame (12) has a guide rail (50) on which the projection part (36) is movably guided in the longitudinal direction (L).

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