EP3527764B1 - Fitting assembly for a lifting-sliding element and lifting-sliding element with such a fitting assembly - Google Patents

Description

The present invention relates to a fitting arrangement for a lift-slide element such as a lift-slide door or a lift-slide window, which is displaceable on and along a lower or bottom guide rail and from a lowered position in which the lift-slide element is immovable. can be transferred to a raised position in which the lifting-sliding element is displaceable, with a lifting device for selectively raising and lowering the lifting-sliding element, which has an actuating lever, at least one lifting element for raising and lowering the lifting-sliding element and a transmission gear with at least a drive rod, via which the at least one lifting element is drivingly coupled to the actuating lever, the fitting arrangement further comprising a gas pressure spring with a cylinder and a piston rod received by the cylinder, which is drivingly coupled to the lifting device in such a way that the gas pressure spring both during Lowering as well as during the lifting of the lifting-sliding element counteracts the weight of the lifting-sliding element.

A fitting arrangement for a lifting-sliding element according to the preamble of claim 1 is essentially of the type EP 1 681 418 A2 known. A similar fitting arrangement for a lifting and sliding element is also from the EP 2 918 762 A1 known, but not a gas pressure spring, but a damper is used.

The lifting elements in question for raising and lowering the lifting-sliding element are usually so-called carriages, which are arranged in a receiving groove formed on the underside of the lifting-sliding element and via the transmission gear and in particular via whose drive rod can be operated using the operating lever. While the lifting-sliding element rests in its closed position with its underside immovably on the floor or on a lower frame part or the like, by pivoting the actuating lever, a part of the carriage attached to the lifting-sliding element can be raised relative to the rollers of the carriage, which stand on the guide rail , whereby the lifting-sliding element itself is transferred to its raised position and can be moved along the guide rail via the rollers. However, particularly in the case of large-area sliding elements, which can weigh several hundred kilograms, for example, the force required to pivot the actuating lever to lift the lifting-sliding element is relatively large, so that the lifting-sliding element cannot be transferred from the lowered to the raised position more can be done with the desired ease. Furthermore, when lowering the lifting-sliding element from the raised to the lowered position, the actuating lever can automatically shoot up from a certain point due to the high weight of the lifting-sliding element.

The invention is therefore based on the object of developing a fitting arrangement of the type mentioned in such a way that, even with a lifting-sliding element with a high weight, it can be easily transferred from the lowered to the raised position and, in addition, the risk of an undesirable, automatic, abrupt pivoting of the operating lever when lowering the lifting-sliding element is reduced.

Starting from a fitting arrangement of the type mentioned at the outset, this object is achieved by the features of claim 1 and in particular in that the free end of the piston rod is attached to the drive rod by means of a fastening element which is formed by an eye which is formed at the free end of the piston rod is, and extends into a base rising from the surface of the drive rod.

Furthermore, a lifting and sliding element is provided which is equipped with such a fitting arrangement.

According to a preferred embodiment, the gas pressure spring can be coupled to the lifting device and in particular to the at least one drive rod in such a way that the gas pressure spring is increasingly prestressed when the lifting-sliding element is lowered and is increasingly relieved when the lifting-sliding element is raised. The gas pressure spring is thus coupled to the lifting device in such a way that it temporarily stores at least part of the positional energy of the lifting-sliding element that is released when the lifting-sliding element is lowered and releases this temporarily stored energy to it again when the lifting-sliding element is subsequently raised.

The gas pressure spring is thus discharged when the lifting-sliding element is raised and consequently applies a force acting in the direction of movement of the drive rod when the lifting-sliding element is raised, which makes it easier to lift the lifting-sliding element via the actuating lever. When lowering the lifting-sliding element, however, the gas pressure spring is tensioned or loaded and thus, when lowering the lifting-sliding element, applies a spring force to the connecting rod that is opposite to the direction of movement of the drive rod and increases with increasing lowering, which means that the holding force to be applied by means of the actuating lever when lowering of the lifting and sliding element becomes smaller.

The fitting arrangement according to the invention can therefore be achieved by a user for transferring the lifting-sliding element The force to be applied when lowered into the raised position is reduced by the force applied by the gas pressure spring, since the gas pressure spring, regardless of the position of the lifting-sliding element, always tries to move the lifting-sliding element against its weight towards its raised position.

By means of an appropriately matched gas pressure spring or several appropriately matched gas pressure springs, the actuating force required to lift the lifting-sliding element can be set to a pleasant and easy-to-use value, regardless of the weight of the lifting-sliding element. At the same time, it is ensured that when the lifting-sliding element is lowered, part of the weight of the lifting-sliding element is also absorbed by the at least one gas pressure spring, so that the risk of the actuating lever suddenly snapping upwards is reduced.

Preferred embodiments of the invention will now be discussed below. Further embodiments can also result from the dependent claims, the description of the figures and the drawings themselves.

Thus, according to one embodiment, the fitting arrangement according to the invention can comprise a faceplate that can be firmly attached to a lifting-sliding element, along which the drive rod is slidably guided, one end of the gas pressure spring being coupled to the drive rod and the other end of the gas pressure spring being coupled to the faceplate. In contrast to an embodiment in which the gas pressure spring is coupled on the one hand to the drive rod and on the other hand directly to the lifting-sliding element and in particular a frame section of the same, the assembly of the fitting arrangement on a lifting-sliding element is relatively simple because the gas pressure spring is in the frame does not have to be connected to the lifting and sliding element during assembly.

Rather, the fitting arrangement can be handled as a unit and can therefore be attached to a lifting-sliding element without the gas pressure spring having to be coupled to the lifting-sliding element during assembly.

According to a further embodiment, the fitting arrangement can have a first faceplate comprising a first drive rod, which is designed to be received in a vertically extending receiving section, such as a groove, which is formed in a side frame part of a lifting-sliding element, one end being one first gas pressure spring is coupled to the first drive rod and the other end of the first gas pressure spring is coupled to the first faceplate. Additionally or alternatively to this, the fitting arrangement can have a second faceplate comprising a second drive rod, which is designed to be received in a horizontally extending receiving section such as a groove, which is formed in a lower frame part of the lifting-sliding element, one end being one second gas pressure spring is coupled to the second drive rod and the other end of the second gas pressure spring is coupled to the second faceplate.

In principle, the other end of the first and/or the second gas pressure spring can also be coupled to the sash frame itself or to a part firmly connected to the sash frame, e.g. a gear box, a sash-fixed section of a carriage or a separate fitting arrangement, instead of to the faceplate For example, can be arranged in a lower frame part of the lifting-sliding element to provide additional support for lifting the same. The first and/or the second gas pressure spring is advantageously arranged so that it runs parallel or substantially parallel to the section of the drive rod to which it is attached.

If we are talking about a second faceplate, a second drive rod and a second gas pressure spring, this does not necessarily mean that a first faceplate, a first drive rod and a first gas pressure spring must also be present; Rather, such numerical information should only make the respective “second” elements distinguishable from the respective “first” elements.

Fig. 1

eine schematische Darstellung eines Hebe-Schiebeelements mit einer erfindungsgemäßen Beschlaganordnung zeigt;

Fig. 2

eine perspektivische Darstellung einer erfindungsgemäßen Beschlaganordnung im Bereich der Gasdruckfeder zeigt; und

Fig. 3

eine schematische Schnittdarstellung durch die Beschlaganordnung der Fig. 2 zeigt.

The invention is described in more detail below using an exemplary embodiment with reference to the drawings, in which:

Fig. 1

shows a schematic representation of a lifting-sliding element with a fitting arrangement according to the invention;

Fig. 2

shows a perspective view of a fitting arrangement according to the invention in the area of the gas pressure spring; and

Fig. 3

a schematic sectional view through the fitting arrangement Fig. 2 shows.

The Fig. 1 shows a schematic view of a lifting-sliding element 19 according to the invention, which can be moved in the horizontal direction along a bottom-side guide rail, not shown here. For this purpose, the lifting-sliding element 19 has two carriages 25 on its underside, which are arranged in a receiving section 21 in the form of a groove which is formed in the underside of a lower frame part 22 of the frame of the lifting-sliding element 19.

The lifting-sliding element 19 has a lowered position and a raised position, and in the lowered position it cannot be displaced in contrast to the raised position. In order to be able to transfer the lifting-sliding element 19 between the lowered position and the raised position, the lifting-sliding element 19 has a total of lifting device designated by the reference number "10", by means of which the lifting-sliding element 19 can be selectively raised and lowered.

The lifting device 10 in question comprises an actuating lever 27 on a side frame part 23 of the lifting-sliding element 19, two lifting elements in the form of the two carriages 25 for raising and lowering the lifting-sliding element 19 and a transmission gear via which the two lifting elements are in shape of the two carriages 25 are coupled to the actuating lever 27 in a driving manner. The transmission gear includes in particular a first drive rod 26, which is coupled to the actuating lever 27 in a driving manner, a second drive rod 29, which is coupled to the two carriages 25 in a driving manner, and a deflection 32 in the form of, for example, a deflection gear, via which the two drive rods 26 , 29 in turn are coupled to one another in the corner area of the frame of the lifting-sliding element 19. By pivoting the actuating lever 27 from its locking position 27 'shown in dashed lines, in which the lifting-sliding element 19 is in its lowered position, according to the arrow 28 into its open position 27", the lifting-sliding element 19 can be raised by means of the two carriages 25 in order to be able to move it along the guide rail, not shown.

The first drive rod 26 runs in a receiving section 20 designed as a groove, which is formed in the side frame part 23 of the lifting-sliding element, whereas the second driving rod 29 runs in the receiving section 21 formed in the underside of the frame of the lifting-sliding element 19 also serves to accommodate the two carriages 25. The two receiving sections 20, 21, within which the two drive rods 26, 29 are arranged, are closed by a first or a second faceplate 34, 36, along which the respective drive rods 26, 29 can be moved are guided. However, the second faceplate 36 is not absolutely necessary since the lower receiving section 21 cannot be seen.

Like the representation of the Fig. 1 can also be removed, the fitting arrangement also has one in the Fig. 1 only schematically shown gas pressure spring 40, which is coupled on the one hand to the first drive rod 26 and on the other hand to the first faceplate 34, as will be explained in more detail below with reference to Figures 2 and 3 is explained. Additionally or alternatively, the fitting arrangement can also include a second gas pressure spring 42, which is coupled on the one hand to the second drive rod 29 and on the other hand to the second faceplate 36. The two gas pressure springs 40, 42 are each located behind the respective faceplate 34, 36 and the associated drive rod 26, 29 in the respective receiving section 20, 21 and are therefore not visible from the outside.

Like the synopsis of the Figs. 2 and 3 can be removed, the gas pressure spring 40 comprises a cylinder 46 and a piston rod 44 received by the cylinder 46, which is displaceable relative to the cylinder 46. To connect the cylinder 46 to the first faceplate 34, a tab 48 is provided on the bottom of the cylinder 46, which is fastened by means of a fastening element 54 to two flanges 58 which protrude vertically from the first faceplate 34 and extend either over the entire length of the first Cuff rail 34 can extend or can only be provided locally in that area of the first cuff rail 34 where the cylinder 46 is to be overcome with the first cuff rail 34.

To connect the free end of the piston rod 44 to the first drive rod 26, a type of eye 56 is formed at the free end of the piston rod 44, through which a fastening element 52 extends into a base 60, which rises from the surface of the first drive rod 26 and integral with this is formed. Without wanting to go into this in more detail, for the sake of completeness it should be noted at this point that the second gas pressure spring 42 - if present - can be coupled in a corresponding manner to the second drive rod 29 and the second faceplate 36 - if present. However, the other end of the second gas pressure spring 42 can also be coupled to the lower frame part 22 itself or to a part firmly connected to the lower frame part 22, such as one of the carriages 25 or a separate fitting arrangement, which, for example, in the lower frame part 22 for additional Supporting the lifting of the lifting-sliding element is arranged.

Since the gas pressure spring 40 or the gas pressure springs 40, 42 are thus coupled on the one hand with the respective drive rod 26, 29 and on the other hand with the respective associated cuff rail 34, 36, which are firmly attached to the lifting-sliding element 19, the respective gas pressure spring 40, 42 is therefore increasingly prestressed when the lifting-sliding element 19 is lowered and is increasingly relieved when it is raised. Due to the fact that it is coupled to the respective drive rod 26, 29, the respective gas pressure spring 40, 42 absorbs at least part of the positional energy of the lifting-sliding element 19 that is released when the lifting-sliding element 19 is lowered and stores it temporarily, in order to be able to deliver them again when the lifting-sliding element 19 is subsequently lifted. The respective gas pressure spring 40, 42 is thus loaded when the lifting-sliding element 19 is lowered and consequently applies a force to the respective drive rod 26, 29 that is opposite and increasingly larger to the direction of movement of the respective drive rod 26, 29 during lowering. Thus, the holding force to be applied by means of the actuating lever 27 is reduced compared to the case without using a fitting arrangement according to the invention when lowering, so that the risk of the actuating lever 27 snapping upwards towards its locking position is reduced.

However, if the actuating lever 27 is based on its position in the Fig. 1 shown locking position 27 'is pivoted downwards into the open position 27" according to the arrow 28 in order to be able to lift the lifting-sliding element 19 via the carriages 25 and thus the lifting-sliding element 19, the force required for this is reduced compared to the case without using a fitting arrangement according to the invention, since Part of the weight of the lifting-sliding element 19 to be raised does not have to be applied via the actuating lever 27, but is provided as a counterforce by the gas pressure springs 40, 42. In this way, the pressure is discharged in the gas pressure springs 40 during the lowering of the lifting-sliding element 19 , 42 temporarily stored energy when lifting the lifting-sliding element 19, a force acting in the direction of movement of the respective drive rod 26, 29 being applied to the same, whereby lifting is made easier. The lifting of the lifting-sliding element 19 is thus carried out by the gas pressure springs 40, 42 supported, so that less force has to be applied to operate the lever 27.

Reference symbol list

10

Lifting device

19

Lifting and sliding element

20

Recording section

21

Recording section

22

lower frame part

23

side frame part

25

Carriage

26

first driving rod

27

Operating lever

27'

Locking position

27"

open position

28

Arrow

29

second drive rod

32

Deflection

34

first faceplate

36

second faceplate

40

first gas pressure spring

42

second gas pressure spring

44

Piston rod

46

cylinder

48

tab

52

fastener

54

fastener

56

eye

58

flanges

60

base

Claims (7)

1. A fitting arrangement for a lift and slide element (19), such as a lift and slide door or a lift and slide window, which is displaceable along a guide rail and which can be transferred from a lowered position, in which the lift and slide element (19) is non-displaceable, into a raised position in which the lift and slide element (19) is displaceable,

   said fitting arrangement comprising a lifting device (10) for raising and lowering the lift and slide element (19), said lifting device (10) comprising an actuation lever (27), at least one lifting element (25) and a transmission gear having at least one connecting rod (26, 29) via which the at least one lifting element (25) is drive-effectively coupled to the actuation lever (27), wherein the fitting arrangement further comprises a gas pressure spring (40, 42) having a cylinder (46) and a piston rod (44) which is received by the cylinder (46) and which is drive-effectively coupled to the lifting device (10) such that the gas pressure spring (40, 42) counteracts the weight force of the lift and slide element (19) during both the lowering and the raising of the lift and slide element (19),

   characterized in that

   the free end of the piston rod (44) is fastened to the connecting rod (26, 29) by means of a fastening element (52) which extends through an eye (56), which is formed at the free end of the piston rod (44), and into a base (60) rising from the surface of the connecting rod (26, 29).
2. A fitting arrangement according to claim 1,
   characterized in that
   the gas pressure spring (40, 42) is drive-effectively coupled to the lifting device (10), in particular to the at least one connecting rod (26, 29), such that it is increasingly preloaded on a lowering of the lift and slide element (19) and is increasingly relieved on a raising of the lift and slide element (19).
3. A fitting arrangement according to claim 1 or 2,
   characterized in that
   the fitting arrangement comprises a cover rail (34, 36) which can be fixedly attached to a lift and slide element (19) and along which the connecting rod (26, 29) is displaceably guided, with one end of the gas pressure spring (40, 42) being coupled to the connecting rod (26, 29) and the other end of the gas pressure spring (40, 42) being coupled to the cover rail (34, 36).
4. A fitting arrangement according to at least one of the preceding claims, characterized in that
   the fitting arrangement has a first cover rail (34) which comprises a first connecting rod (26) and which is configured to be received in a vertically extending reception section (20) which is formed in a side frame part (23) of a lift and slide element (19), with one end of a first gas pressure spring (40) being coupled to the first connecting rod (26) and the other end of the first gas pressure spring (40) being coupled to the first cover rail (34).
5. A fitting arrangement according to at least one of the preceding claims, characterized in that
   the fitting arrangement has a second cover rail (36) which comprises a second connecting rod (29) and which is configured to be received in a horizontally extending reception section (21) which is formed in a lower frame part (22) of a lift and slide element (19), with one end of a second gas spring (42) being coupled to the second connecting rod (29) and the other end of the second gas spring (42) being coupled to the second cover rail (36).
6. A fitting arrangement according to at least one of the preceding claims, characterized in that
   the gas pressure spring (40, 42) is drive-effectively coupled to the lifting device (10) such that it temporarily stores at least a portion of the position energy of the lift and slide element (19) released on a lowering of the lift and slide element (19) and releases this temporarily stored energy to the lift and slide element (19) again on a subsequent raising of the lift and slide element (19).
7. A lift and slide element (19), in particular a lift and slide door or a lift and slide window, comprising a fitting arrangement according to at least one of the preceding claims.

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