EP4097322A1

EP4097322A1 - Device for assisting the closing and opening of a lift-and-slide element, and lift-and-slide element equipped with such a device

Info

Publication number: EP4097322A1
Application number: EP21716656.0A
Authority: EP
Inventors: Michael KNAPEK
Original assignee: Maco Technologie GmbH
Current assignee: Maco Technologie GmbH
Priority date: 2020-04-01
Filing date: 2021-03-29
Publication date: 2022-12-07
Also published as: WO2021198185A1; DE102020109074A1; CN115210441A

Abstract

The present invention relates to a device for assisting the closing and opening of a lift-and-slide element. The device comprises a basic body for mounting on a wing frame of a lift-and-slide element; an axially extending first preloading element having a first end and a second end, which is articulated on a basic body; an axially extending second preloading element having a first end and a second end, which is articulated on the basic body; and a switching mechanism having a first and a second defined end switching position, via which mechanism the first end of the first preloading element is coupled to the first end of the second preloading element. Here, the switching mechanism has an unstable equilibrium position between its two end switching positions, wherein the two preloading elements are aligned with one another only in the unstable equilibrium position.

Description

DEVICE TO ASSIST THE CLOSING AND OPENING OF A SLIDING LIFTING ELEMENT AND SLIDING LIFTING ELEMENT EQUIPPED WITH SUCH A DEVICE

The present invention relates to a device for supporting the closing and opening of a lift and slide element. According to the invention, the device particularly supports the closing of the lift and slide element to the effect that the lift and slide element or its sliding sash can be moved as gently as possible into its closed position. The device also supports the opening of the lift and slide element in that it can be moved from the closed position in the direction of its open position with as little effort as possible.

Conventional lift-and-slide elements such as lift-and-slide doors, for example, can have a significant weight of up to 400 kg or more. This can have the consequence that a correspondingly large amount of force is required to set the sliding sash of such a lift-and-slide door in motion, as is the case, for example, when opening the lift-and-slide door from its closed position. Once the sash of such a lift-and-slide door has been set in motion, on the other hand, due to its weight, it has a not inconsiderable kinetic energy, which when closing such a lift-and-slide door can lead to the sliding sash hitting the frame when it reaches the closed position, which can lead to damage to the lift / slide door, especially at higher impact speeds. The same problem arises when opening it completely a lift-and-slide door, as the sliding sash can also collide with the frame when it reaches the open position.

The invention is therefore based on the object of specifying a device with which a lift and slide element can be opened with only a small amount of force and which at the same time enables the lift and slide element to be closed gently.

This object is achieved with a device having the features of claim 1 to assist in the closing and opening of a lift-and-slide element such as a lift-and-slide door or a lift-and-slide window, for example.

The device according to the invention for supporting the closing and opening of a lift and slide element comprises a base body which is designed to be attached to a sash frame of a lift and slide element. Two axially extending prestressing elements are articulated on the base body, so that they do not have to be mounted individually on the sash of the lift-slide element. In particular, the device has an axially stretching first biasing element, such as a first gas pressure spring, which has a first end and a second end that is hinged to the base body. Furthermore, the device has an axially stretching second biasing element, such as a second gas pressure spring, which has a first end and a second end which is hinged to the base body. Because the two prestressing elements are hinged to the base body and are thus carried by the same, the device can thus be handled in its entirety and mounted on a lift and slide element or its sliding sash, so that the two prestressing elements are not handled individually for this purpose and must be mounted on the lift-slide element. Furthermore, the device has a switchover mechanism which can be switched between a first limit switch position and a second limit switch position. If, for example, the switching mechanism is transferred from its first end switch position to its second end switch position, the switch mechanism cannot move beyond the second end switch position. The same applies to a switchover process of the switchover mechanism starting from its second limit switch position in the direction of its first limit switch position, in which the switchover mechanism cannot be moved beyond its first limit switch position.

The switching mechanism serves as a coupling element between the two prestressing elements, since the first end of the first prestressing element is coupled to the first end of the second prestressing element via the switching mechanism under a prestressing of the first and / or the second prestressing element. Regardless of the position or deflection of the two pre-tensioning elements, these therefore always interact with one another, since one pre-tensioning element applies a pre-tensioning force to the other pre-tensioning element via the switching mechanism and vice versa.

The switching mechanism is designed in such a way that it has only one unstable equilibrium position between its two limit switch positions. The two prestressing elements are therefore only aligned with one another in the unstable equilibrium position in question and are thus axially aligned with one another. Beyond or outside of the unstable equilibrium position of the switching mechanism, however, the two biasing elements are not axially aligned with each other, with the result that only that force component of one biasing element, which acts in the direction of the axial extension of the other biasing element, interacts with it . So, for example, is the second biasing element compared to the first biasing element deflected, only that force component is transmitted from the second prestressing element to the first prestressing element, which is aligned with it.

If in one position of the device, for example, the second biasing element is deflected relative to the first biasing element, which is more heavily compressed than the second biasing element, then in this position the biasing force exerted by the first biasing element is always greater than the force component of the second biasing element, which is directed in the direction of the first biasing element acts. This can be used to the effect that when the device is mounted on a lift and slide element, the first biasing element in the first limit switch position of the switching mechanism pushes the lift and slide element against the biasing force of the second biasing element towards its closed position when the first The end of the first Vorspannele element is supported on a fixed or stationary abutment.

In contrast, the second biasing element in the second end switch position of the switching mechanism can push the lift-slide element against the biasing force of the first biasing element in the direction of its open position when the first end of the second biasing element is supported on a stationary or stationary abutment.

The device can also be used to ensure that the lift-slide element gently assumes its open position without hitting the frame. In this case, the second biasing element urges the lifting and sliding element in the second end position of the switching mechanism against the biasing force of the first biasing element in the direction of its open position when the first end of the second biasing element is supported on a fixed or stationary abutment. In contrast, in the first limit switch position of the switching mechanism, the first biasing element can counter the biasing force with the lift-slide element urge the second biasing element in the direction of its closed position when the first end of the first biasing element is supported on a fixed or stationary abutment.

As already explained above, the function of the switchover mechanism is essentially to deflect one prestressing element relative to the other prestressing element. If, for example, the second prestressing element is deflected relative to the first prestressing element during the closing process of the lift-slide element, the first prestressing element urges the sliding wing of the lift-slide element into its closed position, preferably until the prestressing force exerted by the first prestressing element is included the force component of the second biasing element is in equilibrium, which is aligned with the first biasing element. As a result, the lift and slide element can be closed gently by means of the first prestressing element without the risk of the sliding sash of the lift and slide element hitting the frame.

If it were not possible to switch the switching mechanism, the device according to the invention would not support subsequent opening of the lift and slide element, since in this case the sliding sash would always be pushed towards its closed position by the first biasing element.

Therefore, if the switching mechanism is transferred in the manner according to the invention in the closed position of the lift-slide element in its second end switch position, then the first prestressing element is deflected relative to the second prestressing element with the result that now the force component exerted by the first prestressing element, which acts in the direction of the second preload element is less than its preload force. Thus, the second pre-tensioning element is now able to move the sash of the lift-slide element to open against the biasing action of the first biasing element or to urge it in the direction of its open position.

It is thus due to the integration of the switching mechanism in the device according to the invention that a lift-slide element can be closed gently by means of the device according to the invention as well as opened without any significant expenditure of force.

So that the stationary abutment, on which either the first or the second biasing element is supported depending on the direction of movement of the lift and slide element, does not collide with the first biasing element when the lift and slide element is opened, it can be provided according to one embodiment that the abutment is designed to be axially flexible perpendicular to the axial extent of the two prestressing elements. The abutment can thus, for example, be pushed back by the first prestressing element if it comes into contact with this during the opening process of the lift-slide element.

According to one embodiment, the switching mechanism can, for example, have an L-shaped angled switching element, which is also referred to here as an angle element and which in turn can be pivoted between the two limit switch positions. In this embodiment, the switchover or angle element has a first and a second leg, which are preferably aligned essentially perpendicular to one another. The first end of the first biasing element is hinged at the free end of the first leg, whereas the first end of the second biasing element is hinged at the free end of the second leg. Therefore, if the switching mechanism and in particular its switching element is in the first limit switch position, for example, the first pretensioning element can be supported on the abutment indirectly via the first leg of the switching element. On the other hand, there is the switching mechanism and in particular the Switching element in the second limit switch position, the second pre-tensioning element can be supported on the abutment indirectly via the second legs of the switching element.

In order to ensure that the respective biasing element has a defined deflection compared to the other biasing element, it can be provided according to a further embodiment that the first leg forms a first stop with which the first biasing element comes into contact in the first end switching position. The second leg can equally form a second stop with which the second preload element comes into contact in the second limit switch position. The stops in question can thus ensure that the switching element cannot be pivoted beyond its respective limit switch position, so that the respective deflected pretensioning element has a defined deflection relative to the other pretensioning element.

Since the two biasing elements are hinged at their respective second ends to the base body and are under mutual bias, it can be provided according to a further embodiment that the switching mechanism is slidably mounted on the base body and secured against abhe bend forces. This can prevent the two prestressing elements from being deflected or buckling relative to one another at the same time. In particular, a swivel joint which can be displaced along the base body can be provided for this purpose, on whose axis of rotation the intersection of the two legs of the switching element lies.

According to yet another embodiment, the two Vorspannele elements can be constructed identically and in particular the same spring stiffness be seated. The fact that identical components can be used for the two prestressing elements depends in particular on the function of the Due to the switching mechanism, since this can ensure that, depending on the switching position of the same, the spring force of a prestressing element overcomes the force component of the other prestressing element acting in the direction of the same prestressing element.

As already explained above, the switching mechanism is during the opening of the lift and slide element in its first limit switch position, whereas the switch mechanism to open the lift and slide element must be transferred to its second limit switch position. This switchover of the switchover mechanism into its second limit switch position can take place in that the wing of the lift-slide element is given an opening impulse, with the result that the switchover mechanism is switched to its second limit switch position due to the fact that it is in the closed position of the lift-slide element. Sliding element is supported on the abutment.

In addition or as an alternative to this, however, the device according to the invention can also comprise an actuating mechanism with which the switching mechanism interacts in the closed position of the lift-slide element in such a way that when the lift-slide element is lowered, the switch mechanism is pivoted from its first limit switch position to its second position. For example, the switching element with the transmission of the Hebe-Schiebeele element, by means of which it can be raised and lowered, be positively coupled in such a way that when the lift-slide element or its sliding sash is lowered, the switching element is automatically switched to its second end switching position. If the wing of the lift-slide element is raised again in its closed position after lowering, the switching element is already in its second end position with the result that the first biasing element is deflected relative to the second biasing element and the second biasing element is thus the Can push the wing into its open position. In the following, the invention will now be described purely by way of example with reference to the drawings, in which:

1 shows a view of a Flebe sliding door according to the invention without a fixed leaf;

Fig. 2 shows the detail "A" of the figure in an enlarged representation;

Fig. 3 shows a view of the device according to the invention;

4 shows, in three representations, different states of the device according to the invention during the closing of a fleece sliding element;

Fig. 5 shows in three representations different states of the inventive device during the opening of a Flebe sliding element; and

Fig. 6 shows two further states of the fiction, contemporary device during the further opening of a Flebe sliding element in two representations.

In the following, with reference to FIGS. 1, 2 and 3, the basic structure of the device 50 according to the invention and its positioning on a Flebe sliding door 10 will be discussed, before then with reference to FIGS direction 10 is explained. 1 shows a lift and slide element and, more precisely, a lift and slide door 10 with a circumferential window frame 12 which receives a sliding sash 14 which is slidably guided within the window frame 12 along an upper limb 18 and a lower limb 20 of the window frame 12 . The sliding sash 14 in turn comprises a sash frame 16 which the glazing of the sliding sash 14 receives.

As can be seen in particular from FIG. 2, an elongated, upwardly open recess 24 is formed in the upper leg 22 of the sash frame 16, which is intended to receive the base body 52 of the inventive device 50 including its prestressing elements 54, 56 and their To switching mechanism 58 is used. In the upper leg 18 of the window frame 12, on the other hand, a recess 26 which is open towards the bottom is formed, in which the abutment 60 of the device 50 according to the invention is arranged and mounted. As an alternative to the embodiment shown here, however, the base body 52 of the inventive device 50 including its biasing elements 54, 56 and their switching mechanism 58 in the downwardly open recess 26 of the window frame and the abutment 60 in the upwardly open recess 24 of the sash frame 16 can be arranged without this affecting the function of the device.

In the following, the structure of the device 50 according to the invention will now be explained in more detail with reference to FIG. 3. As can be seen from the illustration in FIG. 3, the device 50 according to the invention, as already mentioned above, has a base body 52 which, as it were, serves as a type of housing or carrier of the device 50 according to the invention, since this base body 52 comprises the other components of the device 50 picks up. In particular, the device 50 has an axially extending first prestressing element 54, which is a first gas pressure spring 54, and an axially extending second biasing element 56, which is a second gas pressure spring 56 here. The two gas springs 54, 56 white egg NEN conventional structure, each with a plunger which is guided in a cylinder. The first gas pressure spring 54 has a first end 62 and a second end 64, the second end 64 being articulated to the base body 52. Likewise, the second gas pressure spring 56 has a first end 66 and a second end 68, the second end 68 being articulated to the base body 52, see also FIG. 4 in particular the switching mechanism 58, to be described in more detail, is coupled to the first end 66 of the second gas pressure spring 56.

In the state of the device 50 shown in Fig. 3, the first gas pressure spring 54 is almost completely tensioned or compressed, whereas the second gas pressure spring 56 is almost completely extended, which means that the two gas pressure springs 54, 56 via the switching mechanism 58 below Preload are coupled to one another.

The switchover mechanism 58 is essentially an L-shaped angled angle element 70, which has a first leg 72 and a second leg 74 running essentially perpendicular thereto. At the free end of the first leg 72, the first end 62 of the first gas pressure spring 54 is articulated, whereas the first end 66 of the second gas pressure spring 56 is articulated at the free end of the second leg 74.

As indicated by the static symbol of a floating bearing, the Win angle element 70 is slidably mounted on the base body 52 by means of a pivot joint 26 displaceable along the base body 52 and thereby secured against lifting forces on it. The axis of rotation of the swivel joint 76 coincides with the intersection of the two legs 72, 74 of the angle element 70 together, so that the angle element 70 can be switched around the axis of rotation of the swivel joint 76 between a first limit switch position according to the third illustration in FIG. 4 and a second limit switch position according to the third illustration in FIG. 3.

The function of the device 50 according to the invention will now be discussed below with reference to FIGS. 3 to 6, further features of the device 50 also being discussed here.

If the sliding sash 14 of a Flebe sliding door 10 is closed with a device 50 mounted on the sliding sash 14, as indicated in the first illustration of FIG the second leg 74 of the angle element 70 with the abutment 60 attached to the frame 70 according to the first illustration of FIG. 4 in contact. If the closing movement is now continued, this leads to the angular element 70 being pivoted from its second limit switch position according to the first illustration in FIG. 4 counterclockwise around the swivel joint 76 to its first limit switch position according to the third illustration in FIG .

In the first limit switch position according to the third illustration of FIG. 4, the first gas pressure spring 54 is now supported on the abutment 60, which, due to the fact that the first gas pressure spring 54 is almost completely compressed, leads to the first gas pressure spring 54 being the Sliding sash 14 pushes further to the right into its closed position until the position shown in the first illustration of FIG. 5 is reached, in which the first gas spring 54 is almost completely extended and the second gas spring 56 is almost completely compressed. Since the second gas pressure spring 56 is deflected relative to the longitudinal axis of the first gas pressure spring 54 in the first end switch position according to the third illustration of FIG. so that in spite of the decreasing pretensioning force when the first gas pressure spring 54 moves out, the second gas pressure spring 56 can be almost completely compressed, as the first illustration in FIG. 5 shows. In the first illustration of FIG. 5, the pretensioning force of the first gas pressure spring 54 is in equilibrium with the horizontal component of the second gas pressure spring 56, which has the effect that the sliding sash 14 can be closed gently without hitting the frame 12 bounce.

If the sliding sash 14 is now to be opened again, an opening pulse can be applied manually to the sliding sash 14 for this purpose, as indicated in the first illustration of FIG. 5 by the arrow pointing to the left. As a result, the angle element 70 is pivoted clockwise about the swivel joint 76 until the second leg 74 of the angle element 70 comes into contact with the abutment 60 according to the third illustration in FIG. 5. Since in this position the first gas pressure spring 54 is deflected relative to the second gas pressure spring 56, only the force component of the biasing force of the first gas pressure spring 54, which is aligned with the second gas pressure spring 56, opposes the biasing force of the compressed second gas pressure spring 56. The second gas pressure spring 56 can thus expand according to the transition from the third illustration in FIG. 5 to the first illustration in FIG. 6 and be supported on the abutment 60 with the result that the sliding sash 14 is automatically opened after the opening pulse it follows.

As explained above, the device 50 according to the invention can prevent the sliding sash from hitting the frame 70 when it is closed. The same device 50 can also be used to prevent the sliding sash 14 on the other side impacts against the frame 70 when opening, for which purpose a second abutment would only have to be provided near the open position, on which the two gas pressure springs 54, 56 can alternately support each other in a corresponding manner.

As can be seen from the above illustrations, the Winkelele element 70 between its two end positions has a labile equilibrium position, as shown in the middle illustration of FIGS. Beyond this unstable equilibrium position, either the first gas pressure spring 54 is deflected with respect to the second gas pressure spring 56 or the second gas pressure spring 56 is deflected with respect to the first gas pressure spring 54, with the result that the respectively undeflected gas pressure spring 54, 56 pushes the sliding sash 14 in the direction of its opening or opening. Can push closed position, for which the respectively not steered out gas pressure spring 54, 56 is supported on the abutment 60 and thereby the force component of the respectively deflected gas pressure spring 56, 54, which is aligned with the non-steered gas pressure spring 54, 56 overcomes. The first gas pressure spring 54 thus urges the sliding sash 14 in the first end switch position of the angle element 70 against the pretensioning force of the second gas pressure spring 56 in the direction of its closed position, whereas the second gas pressure spring 56 in the second end switch position of the angle element 70 opposes the sliding sash 14 of the Flebe sliding element 10 the biasing force of the first gas pressure spring 54 urges in the direction of its open position.

So that the angle element 70 cannot be pivoted beyond its first or second limit switch position, a first stop, which is not precisely recognizable here, can be formed on the first leg 72 of the angle element 70, with which the first gas pressure spring comes into contact in the first limit switch position. In a corresponding manner, a second stop, which cannot be seen in more detail here, can be formed on the second leg 74 of the angle element 70 be, with which the second gas spring 56 arrives in the second end position in position.

It is true that the angle element 70 of the switchover mechanism 58 can be moved into its second limit switch position in the manner described above by a manually induced opening pulse; However, the device 50 can also have an actuating mechanism with which the switching mechanism 58 and in particular its angle element 70 interacts at least in the closed position of the lift-slide element in such a way that when the sliding sash 14 of the lift-slide element 10 is lowered, the angle element 70 is transferred from its first limit switch position to its second limit switch position. For example, the angle element 70 can be positively coupled to the transmission of the lift-slide element 10, by means of which the sliding sash 14 can be raised and lowered, in such a way that when the sliding sash 14 is lowered, the angle element 70 is transferred to its second limit switch position.

List of reference symbols

10 lift and slide door

12 frames

14 sliding panels

16 casement frames

18 upper leg of 12

20 lower leg of 12

22 upper leg of 16

24 recess in 22

26 recess in 18

50 device

52 base body

54 first biasing element, first gas pressure spring

56 second preload element, second gas pressure spring

58 Switching mechanism

60 abutments

62 first end of 54

64 second end of 54

66 first end of 56

68 second end of 56

70 Angle element / switchover element

72 first leg of 70

74 second leg of 70

76 swivel joint

Claims

Expectations

1. A device (50) for supporting the closing and opening of a lift-and-slide element (10) such as a lift-and-slide door (10) or a lift-and-slide window, comprising: a base body (52) which can be attached to a casement ( 16) a lift-slide element (10) is formed; an axially extending first biasing element (54), in particular a first gas pressure spring (54) having a first end (62) and a second end (64) which is hinged to the base body (52); an axially extending second biasing element (56), in particular a special second gas pressure spring (56) having a first end (66) and a second end (68) which is hinged to the base body (52); and a switching mechanism (58) with a first and a second defined limit switch position, via which the first end (62) of the first prestressing element (54) under a prestress of the first and / or the second prestressing element (56) with the first end (66 ) the second biasing element (56) is coupled; wherein the switching mechanism (58) between its two end switch positions has an unstable equilibrium position, the two biasing elements (54, 56) being aligned with each other only in the unstable equilibrium position.

2. Apparatus according to claim 1, characterized in that in the state of the device mounted on a lift-slide element (10), the first biasing element (54) in the first limit switch position of the switching mechanism (58), the lift-slide element (10) against the biasing force the second biasing element (56) urges in the direction of its closed position and the second biasing element (56) in the second limit switch position of the switching mechanism (58) pushes the Hebe-Schiebele element against the biasing force of the first biasing element (54) in the direction of its open position.

3. Device according to claim 1 or 2, characterized in that the device (50) further comprises an abutment (60) which is used for fastening to a fixed component, in particular to a room ceiling or a frame (12) of the lifting and sliding element ( 10), wherein the first end (62) of the first Vorspannele element (54) is supported on the abutment (60) to move the lift-slide element (10) against the prestressing force of the second prestressing element (56) in the direction of its closed position urge, and the first end (66) of the second prestressing element (56) is supported on the abutment (60) in order to urge the lifting-sliding element (10) against the prestressing force of the first prestressing element (54) in the direction of its open position.

4. The device according to claim 3, characterized in that the abutment (60) perpendicular to the axial extension of the two front tensioning elements (54, 56) is designed to be elastically resilient.

5. Device according to one of the preceding claims, characterized in that the switching mechanism (58) has an L-shaped angled switching element (70) with a first and a second leg (72, 74), which are preferably aligned substantially perpendicular to each other tet, wherein the first end (62) of the first biasing element (54) is hinged to the free end of the first leg (72) and the first end (66) of the second biasing element (56) is hinged to the free end of the second leg (74) is.

6. The device according to claim 5, characterized in that the first leg (72) forms a first stop with which the first biasing element (54) comes into contact in the first end switch position, and the second leg (74) forms a second stop , with which the second pretensioning element (56) comes into contact in the second limit switch position.

7. Device according to one of the preceding claims, characterized in that the switching mechanism (58), in particular its Umschaltele element (70), slidably mounted on the base body (52) and is secured against it against lifting forces, in particular by means of a relative of the base body (52) displaceable swivel joint (76), on the axis of rotation of which the intersection of the two legs of the Umschaltele element lies.

8. Device according to one of the preceding claims, characterized in that the two prestressing elements (54, 56) are structurally identical and in particular have the same spring stiffness.

9. Device according to one of the preceding claims, characterized in that the two biasing elements (54, 56) are biased regardless of their stel ment / deflection.

10. Device according to one of the preceding claims, characterized in that in the closed position of the lift-slide element (10) the biasing force of the first biasing element (54) with the in the direction of the first biasing element (54) acting force component of the biasing force of the second biasing element (56) is in equilibrium.

11. Device according to one of the preceding claims, characterized in that the device (50) comprises an actuating mechanism with which the switching mechanism (58) interacts in the closed position of the lifting / sliding element (10) in such a way that when the lifting The sliding element (10) of the switching mechanism (58) is pivoted from its first limit switch position into its second limit switch position.

12. Lift and slide element (10), in particular lift and slide door (10) or lift and slide window, with a device (50) according to at least one of the preceding claims, the base body (52) of which on the sash frame (16) or on the frame (12 ) of the lift and slide element (10) is attached.

13. Lift and slide element according to claim 12, characterized in that the sash frame (16) comprises an upper wing limb (22) in which an upwardly open recess (24) is formed in which the base body (52) of the device ( 50) including the two biasing elements (54, 56) and the switching mechanism (58) or the abutment (60) is arranged.

14. Flebe sliding element according to claim 13, characterized in that the abutment (60) or the base body (52) of the device (50) including the two biasing elements (54, 56) and the Umschaltme mechanism (58) in a downward direction open recess (26) is angeord net, which is formed in an upper leg (18) of the window frame (12) of the Flebe sliding element (10).