EP3608494B1 - Lifting device for a sliding door or sliding window - Google Patents

Description

The present invention relates to a lifting device for a sliding door or a sliding window according to the preamble of claim 1.

Sliding doors and sliding windows are used to cover openings in a building envelope with a movable, flat element that can be moved laterally, i.e. essentially transversely to gravity or horizontally, in order to release the opening as required. In the case of sliding windows, an area of at least half a square meter can be expected for the opening, in the case of sliding doors of at least one square meter. The movable element, hereinafter referred to as a "wing", consists mainly of glass or another transparent material, especially in the case of windows. This is often the case with doors such as patio doors, but partially or completely opaque leaves are also conceivable.

In the context of the present description, for the sake of simplicity, the term sliding door, unless otherwise specified, is understood to be synonymous with sliding door and sliding window.

To lock the sash, i.e. to secure it against unauthorized opening by third parties or other influences, the sash is lowered in the closed position. The lowering can be used to set the wing down on a solid surface and thereby block it from moving. Another possibility is that the wing is lowered into a recess, which also creates a form fit that prevents it from being moved to open. Other mechanisms for securing a sliding door or a sliding window against unintentional opening are known and can be considered for combination with the present invention as long as they do not conflict with the lifting device according to the invention or other features.

In known designs (see e.g. FR-81 131 E. and DE-603 189 C ) there is a lever in the frame of the wing which is connected in a suitable manner to a lifting device in the lower part of the frame. The disadvantage of this design is that the mechanism has to have a relatively wide frame of the sash, which significantly reduces the glass surface in the case of a transparent door. In addition, the frame as well as the one in it increases housed mechanism the weight of the wing. An advantage of this attachment can be seen in the fact that the lever for actuating the lifting device can be used as a handle to move the wing.

An alternative is to accommodate the mechanism in the stationary frame, the frame, which is firmly connected to the edge of the opening in the building envelope. Such a design is from the WO-A-2017/068555 and the DE-A-1808276 known. In this case, a handle on the wing of the sliding door is usually required to move the sash.

A fundamental problem with sliding doors is that the leaves have to be guided downwards. This guide represents a threshold, step or some other elevation protruding from below and is at least disruptive or even dangerous since it creates a risk of tripping in the case of a door. According to the WO-A-2017/068555 the sash is suspended from the top of the frame, ie the lifting device is located at the top of the frame. However, this solution requires that the upper part of the wing is made sufficiently stable so that the entire weight can be suspended from the lifting device. In addition, a guide at the lower edge of the wing is still necessary.

the DE-A-1808276 teaches a lifting device under the wing. The sash is unlocked by lifting a track on which the sash can move with the aid of rollers that are attached to the bottom of the sash's frame. Since these rollers are located in the frame of the wing, a relatively wide frame is again required at least at the bottom of the wing and the said running rail protrudes from the ground in the raised state. The running rail is raised by horizontally shifting a lifting rail, which has inclined tracks for lifting rollers that are attached to the running rail. This arrangement also requires careful adjustment, namely precise positioning of the lifting rollers in relation to the inclined paths of the lifting rail.

One object of the present invention is to provide a lifting device which is used to lift the sash of a sliding door (or a sliding window) and which requires less adjustment effort.

• Der Durchgang unten an der Schiebetür soll weitgehend hindernisfrei sein.
• Eine neuartige Lösung für die Dichtung und Führung des Flügels am oberen Rand des Flügels.

Other objects to be solved by the present invention which are preferably to be achieved are:

• The passage at the bottom of the sliding door should be largely free of obstacles.
• A new solution for sealing and guiding the wing at the top of the wing.

A lifting device that fulfills the object is specified in claim 1. The further claims indicate preferred embodiments and sliding locking devices for a building shell (sliding door or sliding window) with such a lifting device.

Accordingly, an essential feature of the present invention is that the carrier of a roller arrangement under the wing is provided with eccentrically mounted lifting rollers in order to be able to lift them. The carrier rests on a roller conveyor with the lifting rollers. By shifting the carrier sideways and thus the axes of the lifting rollers, they roll on the runway. Due to this rotary movement and the eccentricity of the axes of the lifting rollers, the distance between the axes of the lifting rollers and thus of the carrier relative to the runway is changed, in particular from a lowest level, which corresponds to the idle state of the locked sliding door or the locked sliding window, to a higher position , in which the wing of the sliding door or the sliding window can be moved, that is, the sliding door or window can be opened and closed.

If the carrier is provided with a flat surface from which rollers for the wing protrude just enough that the wing can be guided, a substantially threshold-free and obstacle-free passage can be achieved, especially when used as a door.

For the guidance at the top of the wing, an arrangement of a substantially C-shaped, rubber-elastic profile has proven to be favorable. The profile preferably extends over the entire length of the upper edge of the wing. A T-shaped profile protrudes downwards from the top of the window frame, with the crossbeam of the T at the lower end of the web of the T, i.e. the T is upside down. The C-shaped profile encompasses the crossbar of the T in such a way that when the wing is lowered, the sides of the C rest against the ends of the crossbar of the T and are optimally spread slightly. In this way, a seal between the interior and the exterior with respect to the wing is achieved at the same time. When the sash is raised, the contact between the C-shaped profile of the sash and the T-profile on the stationary frame is eliminated so that the C-profile can be displaced with respect to the T-profile and is guided by it. With regard to the seal, the C-shaped profile preferably has a cross section in which the opening of the C-profile is noticeably reduced compared to the maximum diameter or the height of the C-profile, so that the C-profile engages behind the crossbar of the T-beam and is pressed against the rear edge of the crossbar when it is lowered.

Since the sash in the device according to the invention has a grip strip, a handle or the like for ergonomic reasons in order to be able to move the sash manually, it is possible in the case of a glass sash to make it practically without a frame. A version with a simple plate can be performed directly on the rollers of the lifting device. In the case of multiple panels (multiple glazing), the spacer profile, which is located in the edge of the glass panes and connects them to one another, is preferably designed on the outside in such a way that it also serves as a rail for the rollers, e.g. has at least one sufficiently pronounced rib in the longitudinal direction.

According to another possible development, the above-mentioned combined seal and guide on the upper edge of the wing can be combined with a climate-separated, motorized drive. The drive is preferably located on the inside of the wing. Via a shaft, it is connected to a vane drive wheel, which is essentially located in the web of the T-guide bar and whose circumference protrudes so far down over the transverse plate of the T-bar that, when the sash is raised, a drive surface that is at the top of the edge of the sash is designed to come into contact with the periphery of this vane drive wheel. This vane drive wheel is thus arranged in the intermediate zone between the outer space and the inner space with respect to the vane. The connection between the shaft and the vane drive wheel is preferably automatically height-adjustable, e.g. by means of a pivoting gear or elastic torque transmission means.

Fig. 1

Ausschnitt aus einer Gebäudehülle mit einer teilweise geöffneten Schiebetür, stellvertretend auch für ein Schiebefenster;

Fig. 2

Längsschnitt im Bereich des unteren Abschnitts des stationären Rahmens einer Schiebetür, unterteilt in linkes und rechtes Ende;

Fig. 3

Vergrösserte Darstellung des Hubmechanismus, abgesenkter Zustand;

Fig. 4

Draufsicht gemäss IV in Fig. 3;

Fig. 5

Schnitt gemäss V-V in Fig. 3;

Fig. 6

Schnitt gemäss VI-VI in Fig. 3;

Fig. 7

Schnitt analog Fig. 3, angehobener Zustand;

Fig. 8

Schnitt gemäss VIII-VIII in Fig. 7;

Fig. 9

Schnitt gemäss IX-IX in Fig. 7;

Fig. 10

Riegelblock des Verriegelungsmechanismus;

Fig. 11

Seitenansicht des Riegelschiebers des Verriegelungsmechanismus;

Fig. 12

Draufsicht (schematisiert) auf Zusammensetzung von Riegelblock und Riegelschieber;

Fig. 13

Senkrechter Teilschnitt quer zum Flügel durch Bereich Oberkante des Flügels und oberer stationärer Rahmen, Flügel abgesenkt;

Fig. 14

Schnitt wie Fig. 13, Flügel angehoben;

Fig. 15

Schnitt wie Fig. 13, mit klimagetrenntem Antrieb für den Flügel.

Further advantages and properties emerge from the following preferred exemplary embodiments, which are explained with the aid of figures. Show it:

Fig. 1

Detail from a building shell with a partially open sliding door, also representing a sliding window;

Fig. 2

Longitudinal section in the area of the lower section of the stationary frame of a sliding door, divided into left and right ends;

Fig. 3

Enlarged representation of the lifting mechanism, lowered state;

Fig. 4

Top view according to IV in Fig. 3 ;

Fig. 5

Section according to VV in Fig. 3 ;

Fig. 6

Section according to VI-VI in Fig. 3 ;

Fig. 7

Cut analog Fig. 3 , raised state;

Fig. 8

Section according to VIII-VIII in Fig. 7 ;

Fig. 9

Section according to IX-IX in Fig. 7 ;

Fig. 10

Latch block of the locking mechanism;

Fig. 11

Side view of the bolt slide of the locking mechanism;

Fig. 12

Top view (schematic) of the assembly of the bolt block and bolt slide;

Fig. 13

Vertical partial section across the sash through the area of the upper edge of the sash and the upper stationary frame, sash lowered;

Fig. 14

Cut like Fig. 13 , Wings raised;

Fig. 15

Cut like Fig. 13 , with climate-separated drive for the sash.

In a building shell 1 there is a sliding door 2, which in general, unless specific functions of a door are required, can just as well be a sliding window. The sliding door can be arranged with the underside 3 of the stationary frame 5, also called a blind frame, which essentially covers the edge of the opening in the building shell 1, below the floor level 7 in order to obtain an essentially ground-level passage. In the vertical frame part 9 on the left in the drawing there is the opening lever 11, which can be pivoted 180 degrees downwards, for example according to arrow 13, in order to lock or release the sliding sash 15 in the closed position. The sliding sash 15 is shown in a partially open position, in which it is slightly raised relative to the upper edge 17 of the lower frame part. A handle 19 is provided on the left of the sliding sash in order to be able to move the sash by hand. As mentioned in the introduction, it is conceivable and, for aesthetic reasons, even advantageous to design the sliding sash 15 without a sash frame 21. In this case, the handle 19, which can also be a vertical handle strip, can be fastened in a suitable manner near the edge to the wing, e.g. glued or attached to an edge profile, which in turn is sunk into the wing and arranged invisibly.

Fig. 2 shows the mechanism which is essentially located in the left 9 and lower 3 frame parts of the stationary frame 5, wherein Fig. 2a represents a left part and Figure 2b represents a partial section at the right end.

A vertically displaceable rod 23 extends in the left frame part 9 (see Fig. Fig. 3 , in Fig. 2a , covered in a cover 25), which can be moved up and down by pivoting the lever 11 according to arrow 13. The movement of the rod 23 is converted into a substantially horizontal movement via a pivot lever 27. The left horizontal band 29 produces an articulated connection between the pivot lever 27 and the carrier 31 of the roller arrangement 33.

In addition to the carrier 31, the roller assembly 33 comprises eccentrically mounted lifting rollers 35 on axles 37 and running rollers 39 protruding from the carrier 31 at the top have sufficient friction with the circumference of the lifting rollers 35 that they roll on the runway 41, but do not slip on it. The runways 41 can be connected in a suitable manner to the underside 3 of the window frame 5 or building shell 1, as indicated here by screws 43. The height of the runways 41 can also be adjusted by means of the screws 43.

The carrier 31 and thus the entire roller arrangement 33 is shown in FIG Fig. 2 in the raised state accordingly Fig. 1 shown. Obviously, the eccentric mounting of the lifting rollers 35 means that the entire roller arrangement 33 is lowered when the carrier 31 is removed from the left horizontal belt 29 in Fig. 2 is pulled to the left. In Figure 2b it is shown that a right horizontal belt 45 is articulated to the right of the carrier 31. It represents an articulated connection to the bolt actuating rod 47, which is guided in the bolt block 48 so as to be displaceable. At the other end of the bolt actuating rod 47, the two bolts 51 are attached by means of a connecting part 49. The specification of two bolts 51 is an example; one bolt or more than two bolts 51 are also conceivable. The bolts 51 are in turn held in the bolt block 48 in grooves 53 (see FIGS. 10, 12) in the bolt block 48.

Figg. 3 to 9 show the mechanism arranged in the frame 5 in greater detail. The vertical rod 23 runs in guides 55 which are attached to a bar 57 in the left frame part 9 ( Fig. 1 ) is attached or forms part of it. The left frame part 9 is shown in Figs. 2 and 3 are not shown for the sake of simplicity. At the lower end, the bar 57 has a bearing 59 for the pivot lever 27. An articulated connection between the linearly guided rod 23 and the pivot lever 27 is established by the connecting member 61. The sections through the roller arrangement 33 of FIGS. 5 and 6 (lowered position) and Fig. 8 and 9 (raised position like Fig. 2 ) show that the carrier 31 is designed as a tube with a basically rectangular cross-section. The lifting rollers 35 mounted eccentrically on the axles 37 are located outside the carrier 31 on the left and right in the figures. The arrangement in pairs prevents the roller arrangement 33 from tilting. At the same time, the roller arrangement 33 is linearly guided by a guide rib 63 in a width corresponding to the spacing of the lifting rollers 35 on the roller tracks 41.

Most of the body of the rollers 39, which are mounted on axles 67 in the carrier 31, are arranged in the carrier 31. A C-shaped cover profile 69 with a flat central part 70 is attached to the top of the carrier 31. The rollers 39 protrude above the carrier 31 and through the cover profile 69 just enough to allow the sliding sash 15 to be moved on the rollers 39 relative to the roller arrangement 33, preferably to be moved easily, but reinforced by its own weight on the roller assembly, through which the rollers 39 are laterally guided. To support this guiding effect, the circumference of the rollers 39 is concave in cross section, so that a corresponding rib on the underside of the wing 15 is laterally guided therein. The inverse solution is conceivable with a convex circumference of the rollers 39 and correspondingly a concave edge of the sliding sash 15, or multiple designs, i.e. several depressions or elevations, also mixed, on the circumference of the rollers and correspondingly complementary design of the lower edge of the sash 15.

The design of the lifting rollers 35 and the eccentricity of their axes 37 is selected in such a way that in the lowered state (see FIGS. 2, 5 and 6) the cover profile at most just rests on the lifting rollers 35. In the raised state (see FIGS. 7 to 9), the cover profile 69 is preferably approximately flush with the underside 3 of the window frame 5 adjoining left and right or, especially in the case of doors, the floor level in front of a transition between the floor that is as free of thresholds as possible and get behind the sliding door.

The cover profile 69 also protects the roller assembly 33 from solids and liquids that fall from above onto the lifting device. For liquids (rain) in particular, it is advantageous to provide drainage precautions.

For an even lifting or lowering movement, the rollers 35 must be aligned with one another. One possibility is to lower the roller arrangement 33 with the wing 15 open and to remove the cover profile 69. As a result, the rollers 35 are accessible and can be in the lowered position according to FIG Fig. 3 be rotated, if necessary supported by a corresponding marking, which indicates the point of maximum eccentricity at the beginning, which must then point upwards. Incidentally, a self-adjustment can also be assumed, since when lowering the wing 15 in the locked position in the lower frame part 9, whereby the roller arrangement 33 is relieved. If the runway 41 has an asymmetrical frictional behavior with respect to the rollers 35, that is, when it is moved to the left in FIG Fig. 3 or 7 is lower Liability, the design can be such that the lifting rollers 35 in the unloaded state when moving the carrier 31 to the left do not move over the in Fig. 3 Turn away the position shown, but if necessary slide on the track 41. If the carrier 31 is pushed to the right again, there is increased friction, which is supported by the weight of the wing 15 when it rests on the rollers 39 and is pushed upwards.

The Figg. 10 to 12 show details of the locking device. The locking block 48 is firmly attached in the frame 5. It has the linear guide 71 for the bolt actuating rod 47, the grooves 53 for the bolt 51 and a transverse groove 73 for a seal. The lower side of the sliding sash 15 rests on the upper side 75 in the lowered state. Suitable recesses are present in or on it so that the latches 51 move into these recesses in the final phase of locking (to the left in FIGS. 2, 3, 7) and thus prevent the wing 15 from lifting. Since the sash is raised by rolling the eccentrically mounted lifting rollers 35, whereby initially there is at most a slight vertical movement, but a large horizontal movement, when unlocking, ie lifting the sliding sash 15, a substantial horizontal movement is initially generated which allows that first of all the bolts 51 move out of the underside of the sash 15, after which the essential vertical movement begins, which is then no longer hindered by the bolts 51. This mechanism is supported by the partially beveled underside (bevel 77) of the bolt 51, which can be supported, supplemented or replaced by appropriately shaped recesses in the underside of the sash, depending on the situation. The recesses may, for example, be holes 78 in a strike plate 79 which is fastened to the side of the sash in a suitable manner.

To improve the guidance of the bolt actuating rod 47, an O-ring 81 is proposed.

When the sliding door 2 is closed, a good seal against drafts is required. At the bottom, this has already been achieved by lowering the sash, supported by appropriate sealing strips. Corresponding seals are known per se to the person skilled in the art in the vertical sides on the left and right. A more complicated situation arises at the top, since the wing 15 has to be guided here. According to Fig. 13 and 14 an advantageous arrangement acting as a sliding guide was developed here.

The starting point here is, for example, triple glazing 83 of the wing 15, the individual panes being connected via the profiles 85 at the edge of the glass. The guide profile 89 is placed on the profiles. It essentially comprises two C-shaped, mirror-image sealing strips 91 which are fastened to a carrier profile 93 by means of a pressure strip 95. Support profile 93 and pressure strip 95 are made of material of suitable strength, such as metal, plastic, glass fiber reinforced plastic. The sealing strips 91 consist of a material suitable for sealing purposes, in particular a rubber-elastic material, and can be deformed in a rubber-elastic manner. As in Fig. 13 As shown, the sealing strips 91 lie in the lowered state on the transverse strip 97, more precisely on its upper, rear edges. The transverse strip 97 is part of an essentially upside-down, T-shaped arrangement, the transverse strip 97 being attached to a support 101 protruding downward from the top 99 of the window frame 5.

During the lowering, the sealing strips were pressed outward by their rounding from the sides of the transverse strip 97, so that the outer sides 103 of the sealing strips 91 rest against the inner side walls of the upper part 99. The sealing effect produced in this way is reinforced by chambers 105 on the outer surfaces 103, which act as additional sealing lips. Apart from this, the contact between the sealing profiles 91 and the transverse strip 97 each represents a seal. Overall, a multiple, high-quality seal between the interior and exterior of the sliding door 2 (or a sliding window) is achieved.

Fig. 14 however, shows the situation when the wing 15 is raised. The sealing strips 91 are no longer in contact with the transverse strip 97 and are no longer pressed outward by the latter. They have therefore moved inward and their free ends 109 are laterally in contact with the carrier 101. The sliding door 15 is thus guided laterally, but can easily be moved. If necessary, the ends 109 of the sealing strips 91 can be equipped with a material of lower friction with respect to the surface of the carrier 101 and / or the side surfaces of this carrier can be equipped with a correspondingly low-friction material. In this context, silicone, Teflon and related materials, for example, are conceivable. Friction pairings for sliding purposes are known per se to the person skilled in the art.

The specified mechanism for locking the sliding door or window can also be motorized, namely the lever 11 can be equipped with a motorized drive. With this in mind, it is beneficial to exercise as well of the wing 15 is possible by means of a motor. In particular in connection with the previously described preferred solution of a combination of seal and sliding guides on the upper edge of the wing 15, a motorization with climate-separated drive wheels is possible.

As in Fig. 15 As shown, the motor 117 is located in the upper side of the window frame 5, specifically in a zone between the interior and exterior with respect to the sliding door 2. A drive shaft 119 extends from the motor 117 and drives a drive wheel 121 via a movable transmission. The drive wheel 121 is arranged in the area of the carrier 101 and its circumference 123 protrudes downward over the transverse strip 97 so far that the clamping strip 95 of the guide profile 89 rests on the circumference 123 when the wing 15 is in the raised, unlocked state. For a defined friction and a suitable pressure without mechanically overloading the wing 15 or the guide profile 89, a suitable, elastic or movable transmission unit is advantageous in the area of the transition between shaft 119 and drive wheel 121, such as rubber-elastic deformable transmission members or pivotable against spring action Gear units, and the drive wheel 121 is vertically movable. Such measures are known per se to the person skilled in the art and do not need any further explanation.

In particular, there can be a gear arrangement in which the drive wheel can be moved at least vertically. The weight of the drive wheel and the vertically moving parts of the transmission can be used as the pressure force on the wing, supported or gradually compensated by a spring-elastic element, depending on the requirements. In principle, controlled pressing by an actuator is also conceivable.

To drive the drive wheel 121, a friction wheel can be attached to the end of the shaft 119, around which the drive wheel can be pivoted, so that there is a permanent frictional connection between the friction wheel and the drive wheel. A gear arrangement is also conceivable in which a gear connected to the drive can be pivoted about a pinion (gear) at the end of the shaft 119, a chain or belt drive or other types of drive known per se in the art.

• Das Antriebsrad 121 kann durch eine Ausnehmung im Träger der umgekehrten T-förmigen Anordnung hindurchragen oder es können die Lager der Welle 119 in diesem Träger angebracht werden. Damit wird vermieden, dass die Trennwirkung des Trägers unterbrochen wird, und es resultiert eine kompakte Anordnung.

From the preceding description of preferred embodiments of the invention, numerous modifications and additions are accessible to those skilled in the art without departing from the scope of protection of the invention, which is defined by the claims. The following are conceivable:

• The drive wheel 121 can protrude through a recess in the carrier of the inverted T-shaped arrangement or the bearings of the shaft 119 can be mounted in this carrier. This prevents the separating effect of the carrier from being interrupted, and a compact arrangement results.

Claims (10)

1. Lifting device for a sliding door or a sliding window having a leaf (15) that is slidable in an opening direction, the opening movement of the leaf being substantially perpendicular to gravity, the lifting device comprising:

   - a lifting portion (31) which is movable in the opening direction and has at least one lifting roller (35) that is rotatably mounted on an axle (37) that is fixed to the lifting portion,

   - a stationary portion having a roller track (41) for the lifting roller,

   the lifting roller supporting the lifting portion on the stationary portion,
   characterised in that the axle of the lifting roller is eccentrically arranged in the lifting roller so that by moving the lifting portion relative to the stationary portion, the lifting roller of the lifting portion is allowed to roll on the stationary portion and the lifting portion is movable away from the stationary portion, and wherein the lifting portion (31) has rollers (39) facing the slidable leaf (15) so that the leaf is movably supported on the lifting portion by the rollers.
2. Lifting device according to claim 1, characterised in that at least two lifting rollers (35) are provided on the lifting portion.
3. Lifting device according to claim 2, characterised in that the lifting portion (31) has the shape of a tube, the eccentric axles (37) of the lifting rollers (35) extend transversely through the lifting portion, and at one end at least of each eccentric axle, preferably at both ends, a respective one of the lifting rollers is fastened outside of the lifting portion, the circumference of the lifting rollers projecting beyond an underside of the lifting portion in any rotational position relative to the respective eccentric axle, and at least one roller (39) being freely rotatably mounted substantially inside the lifting portion, an effective part of its circumference projecting from the lifting portion on an upper side opposite its underside so that the lifting portion is supported by the lifting rollers on the roller track for the lifting rollers and the slidable leaf can be supported on the rollers.
4. Lifting device according to one of claims 2 to 3, characterised in that the lifting device is movable between a closed and an open state, the axles (37) of the lifting rollers (35) being located in the closed state at a first, preferably smallest distance to the roller track and in the open state in a position at a distance that is at least greater than the first distance to the roller track, preferable at a maximum distance.
5. Lifting device according to one of claims 1 to 4, characterised in that a locking unit (47-51) is provided which is mechanically coupled to the lifting portion (31), the locking unit comprising a locking member (51) that is movable in the opening direction and projects in the opening direction, and in that a retaining element having a shape that is substantially complementary to the locking member and being intended to be mounted on the leaf or the lifting element in a stationary manner is arranged in such a position that in a locked position, the locking member engages in the retaining element and thus prevents lifting of the lifting element and of the leaf, and in that the locking member is disengaged from the retaining element when the lifting portion is moved into the release position so that lifting of the lifting portion is allowed by the locking member when the lifting device is actuated.
6. Sliding closure device (2) for a building envelope, comprising a slidable leaf (15) and a lifting device according to one of claims 1 to 5, characterised in that at least two lifting devices are arranged under the leaf (15) in order to prevent a tilting movement of the leaf, the lifting portions (31) being in mechanical operative connection by a coupling member so that by moving one of the lifting portions, at least one of the other lifting portions, preferably all lifting portions, can be imparted the same movement.
7. Sliding closure device (2) for a building envelope, comprising a slidable leaf (15) and a lifting device according to one of claims 1 to 5, characterised in that the leaf (15) is arranged in a frame (5), an actuating element (11), more particularly a lever, is mounted in the frame, and the lifting device is mounted in a part of the frame that is located in the direction of gravity under the leaf, and the actuating element and the lifting element are in mechanical operative connection by second connecting members (23, 27, 29) so that the lifting device is movable by the actuating element.
8. Sliding closure device (2) for a building envelope, comprising a stationary frame (5), a slidable leaf (15), and a lifting device according to one of claims 1 to 5, characterised in that in an upper frame section (99) of the frame (5) opposite the lifting device, a guiding arrangement having a rail-shaped, substantially inverted T-shaped cross-section with a substantially horizontal ledge (97) projecting on both sides at the bottom of a substantially vertical web (101) is provided, the slidable leaf (15) has a bilaterally convex sealing and guiding profile (89) of a rubber-elastic material on its upper side, the sealing and guiding profile having an upper slot whose width is smaller than the horizontal dimension of the horizontal ledge, and the shape of the sealing and guiding profile being designed such that when the slidable leaf is lowered, the sealing and guiding profile rests on the horizontal ledge in order to provide an at least unilateral, preferably bilateral seal, and when the slidable leaf is lifted, the guiding arrangement is slidable inside the slot of the sealing and guiding profile in order to provide guidance of the slidable leaf during opening and closing.
9. Sliding closure device (2) according to claim 8, characterised in that a vertically movable driving device (121) is provided in the web (101) or in a gap in the web, which is arranged so as to be operatively connected to the upper edge of the leaf (15) at least when the latter is lifted, so that the leaf is movable in the opening direction by the driving device.
10. Sliding closure device (2) according to one of claims 6 to 9, characterised in that the leaf (15) substantially consists of an arrangement of parallel panes (83), preferably glass panes, which are connected to each other at their edges by spacing strips (85), the spacing strips being substantially arranged behind the edges of the panes in order to achieve a substantially frameless visual appearance, and the spacing strips at the lower edge of the leaf are provided with guides for the lifting device so that the impression of a frameless slidable pane in the sliding closure device is achieved.

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