DE20312683U1 - Lift-slide fittings - Google Patents

Description

S:\IB5DUP\DUPANM\2 00308\16450364-20031524.doc

Applicant:

Gretsch-Unitas GmbH
Building fittings
Johann-Maus-Strasse 3

71254 Ditzingen

General power of attorney: 1046/01-AV

16450364 11.08.2003

STE/STR

Title: Lift-slide fitting Description

The invention relates to a lift-slide fitting for a window or a door with at least one running shoe arranged on the underside of the frame of the window or door and a motor drive for sliding the window or door.

Sliding windows and sliding doors, which are moved by motor from their closed position to an open position and back, are well known. The drive motor, which is usually a gear motor, is located in the area of the upper beam of the window or door frame and drives a toothed belt on which a carriage

which is attached to the frame of the window or door. In this way, the sliding sash can be moved easily. The drive motor works with V, for example, and is equipped with a programmable control that determines the speed, acceleration and direction of movement. The motor can be driven by force, with the motor being a stepper motor in particular, so that the end positions (closed position and open position) can be determined and the motor can be controlled according to certain movement patterns. These can be programmed into the control system for each sash, depending on the size and weight of the window or door.

There are also lift-slide and lift-slide-tilt windows and doors, where the window or door must be raised before being moved or lowered before being closed. These windows or doors are usually located in external walls, where sealing is not a minor role. With such lift-slide windows or doors, where the movement is motorized, an additional drive is required to lift the sash. This is usually placed on the outside of the frame, which disrupts the design of the window or door. If it is integrated into the sash frame, this is significantly weakened.

The invention is therefore based on the object of reducing the construction effort for motor-driven lift-slide fittings and increasing the attractiveness of such a motor-driven lift-slide window or lift-slide door.

This object is achieved according to the invention in a lift-slide fitting of the type mentioned at the outset in that the drive is connected to the lift fitting via a gear, so that the window or door can be lifted with this drive.

In the lift-slide fitting according to the invention, the drive serves to move the window or door, but it also serves to lift the window or door. For this purpose, the drive is connected to the lifting fitting via a gear so that the drive force can act on the lifting fitting. The lift-slide fitting according to the invention has the significant advantage that the drive intended for moving the sash can also be used to lift the sash, so that no additional drive is required that would spoil the appearance of the sash by being placed on the frame. The function of the drive in the lift-slide fitting according to the invention is therefore expanded by raising the sash or lowering the sash.

In a preferred embodiment, the gear is a slider crank gear. Another

The embodiment provides that the transmission is a gear transmission. It must be taken into account that the wing may have a considerable weight, in particular such wings can weigh up to 300 kg. However, to move the wing, only a small drive motor is required, which is equipped with a transmission gear that has a transmission ratio of, for example, 8:1. However, such a transmission would not be sufficient to be able to lift the wing. For this, an additional slider-crank transmission is required, in which linear movements can be converted into rotary movements, so that relatively large transmission ratios can be achieved. This also applies to gear transmissions in which several gears are arranged one behind the other.

According to the invention, the drive can be a rotary drive or a linear drive. Rotary drives, in particular geared motors, are generally used, in which the transmission is carried out via a worm gear and which drive a toothed belt. A carriage is attached to this toothed belt, via which, as already mentioned in the introduction, the wing is moved. Stepper motors are advantageously used, which can be controlled with precise positioning and can also be used to determine positions.

In a further development, it is planned that a first lifting gear, possibly with a lock, is provided in the frame of the sash for manual operation. This

Lifting gear has a nut on which a handle
is attached, via which the lifting fitting can be operated.
In this way, the window or door can be manually
lifted and then moved.

In the case of further training, it is intended that the
Slider crank mechanism engages a second lifting mechanism.
The sliding movement of the slide, which is converted into a rotary movement by the slider crank mechanism, is also introduced into a nut, so that, as with the first lifting mechanism, the
Turning the nut causes the sash to be lifted. In this way, the sash can be lifted by motor.

Advantageously, the two lifting gears are designed in the same way, so that the individual gear parts can be used for both the first and the second lifting gear. This reduces the number of components required for the inventive
Different components required for fittings.

In a further development, it is intended that the lifting gear has a follower nut with a nut extension and the
Slider crank mechanism drives the follower. The drive of the follower via the slider crank mechanism corresponds to a
manual pivoting of a handle so that the
manual operation and motor operation are the same
drive components.

Preferably, the nut extension is connected to a link via a pivot pin, which engages a pull rod that is arranged so that it can move behind a faceplate and is connected to the running shoe. The lifting mechanism provided in the running shoe is actuated via the pull rod and the sash is raised or lowered. The nut extension and the link form a further transmission gear, with which a 90" rotational movement of the nut is translated into a relatively large displacement movement of the pull rod.

According to the invention, the pull rod is also coupled to a nut extension of the first lifting gear. If the sash is raised by a motor, then not only the second lifting gear but also the first lifting gear is activated and the handle is thereby moved from its rest position to its pivoted position, so that the raised position of the window or door can be recognized by the position of the handle.

Preferably, the lifting gears are not self-locking in their end positions. This means that no separate unlocking or release device is required, especially for the motor drive, if the fitting is to be moved out of the end position.

To secure the fitting in the raised and shifted position, the slider crank mechanism according to the invention has a guide pin which is in the

Sliding phase of the gear movement is guided in a linear guide. This linear guide prevents the sash from being lowered if it is not in the closed position. This means that the drive movements are only converted into sliding movements when the guide pin is in the linear guide.

According to the invention, a carriage that moves the window or door is also guided in the guide, which serves as a guide rail.

In a further development, the slider-crank mechanism is driven by the carriage. The carriage is therefore used to both lift the frame and move it. The carriage and the window or door leaf are coupled or connected via the slider-crank mechanism, which engages the second lifting mechanism.

According to the invention, the guide pin is guided into the linear guide via a control link during the lifting phase of the gear movement. The control link ensures that the sash maintains its closed position during the lifting phase and can only be moved when it is fully raised. This occurs when the guide pin has entered the linear link.

In a preferred embodiment, the lifting gears are mechanically coupled to one another, e.g. by means of a pull rod. As a result, the lifting gears run synchronously regardless of which one is actuated.

Further advantages, features and details of the invention emerge from the subclaims and the following description, in which a particularly preferred example is described in detail with reference to the drawing. The features shown in the drawing and mentioned in the claims and in the description can each be essential to the invention individually or in any combination.

In the drawing show:

Figure 1 is a perspective view of a lift-sliding door with the door leaf in the closed position;

Figure 2 is an enlarged perspective view of detail II of Figure 1, showing a slider crank mechanism;

Figure 3 is an enlarged representation of the second lifting gear, to which the slider crank gear engages;

Figure 4 is an enlarged representation of the first lifting gear to which the handle shown in Figure 1 is attached; and

Figure 5 is a side view of section II according to figure with an extended slider-crank mechanism.

Figure 1 shows a door, designated overall by 10, which has a fixed leaf 12 and a slidably mounted leaf 14. The slidably mounted leaf 14 has running wheels (not shown) on its underside, which roll on a rail 16 and which have a lifting device, by means of which the slidable leaf 14 can be lifted from the position shown in Figure 1. In the position shown in Figure 1, the slidable leaf 14 seals all around with the fixed frame and the fixed leaf 12. A handle 20 is pivotably mounted on the frame 18 of the slidable leaf 14, with which the leaf 14 can be lifted by pivoting the handle 20 90° clockwise (i.e. into a horizontal position). The raised leaf 14 can then be moved to the right in Figure 1. The handle 20 interacts with a first lifting gear 22, which will be described in more detail later.

Figure 1 also shows a slider crank mechanism 24, which is connected to a second lifting mechanism 26

and which is articulated on a carriage 28. This carriage 28 is, as shown in Figure 2, guided horizontally displaceably in a rail 30.

As can also be seen from Figure 2, the slider crank mechanism 24 consists of a first link 32 and a second link 34, whereby the link 32 engages a pivot bearing 36 of the slide 28 and the second link 34 is inserted via a square 38 into a nut 40 of the second lifting mechanism 26. Finally, the two links 32 and 34 carry a guide pin 42 which, when the slide 28 is moved to the right, executes a movement indicated by the arrow 44. The downward movement of the guide pin 42 is supported by a control link 46, so that the guide pin 42 is guided safely downwards in the direction of the guide rail 30.

Figure 3 shows the opened second lifting gear 26, in which the nut 40 is rotatably mounted, to which a nut extension 48 is attached. On this nut extension 48 there is a pivot bearing 50, to which a link 52 is pivotably coupled. This link 52 has a nose 54 protruding from the second lifting gear 26, to which a pull rod 56 (Figure 5) can be coupled. If the nut 40 is rotated 90° clockwise via the square 38 of the slider crank gear 24, the nut extension 48 pivots and pulls the link 52 upwards.

Figure 4 shows the first lifting gear 22 in the open position, whereby this first lifting gear 22 also has a nut 58 in which a square of the handle 20 is mounted. This nut 58 also has a nut extension 60 with a pivot bearing 62 to which a link 64 is coupled. This link 64 is also provided with a nose 66 which protrudes from the lifting gear 22 so that the pull rod 56 can be coupled to it. This means that pivoting the handle 20 also causes a displacement of the pull rod 56. In addition, pivoting of the nut extension 60 can be blocked by inserting a cylinder lock (not shown), but this will not be described in more detail here.

If the carriage 28 is moved from the position shown in Figure 2 in the direction A via a toothed belt 68 (Figure 5) which is driven by a motor drive 70 (Figure 1), the slider crank mechanism 24 is stretched, with the guide pin 42 running through the path indicated by the arrow 44. The guide pin 42 enters at the end of the control link 46 through an opening 74 into a linear link 72 which is formed by the rail 30. In this linear link 72, the guide pin 42 can only be moved in a horizontal direction. The sliding movement of the carriage 28 therefore results in a linear displacement of the two links 32 and 34 and thus of the second lifting mechanism 26, whereby the leaf 14 of the door 10 is opened.

Accordingly, a displacement of the slide 28 in the direction of the arrow Z causes a linear displacement of the entire slider-crank mechanism 24 and thus a displacement of the leaf 14 in the closing direction until the door assumes the closed position and the guide pin 42 leaves the linear guide 72 via the opening 74 and is pivoted along the control guide 46 against the direction of the arrow 44. The slider-crank mechanism 24 assumes its end position as soon as the second link 34 rests against a stop.

The carriage 28 therefore goes through a lifting phase in which the wing 14 is raised and a sliding phase in which the wing 14 is displaced. In the lifting phase, the guide pin 42 runs through the movement path indicated by the arrow 44 and in the sliding phase, the guide pin 42 is in the linear guide 72 or in the rail 30. Since the guide pin 42 can only leave the linear guide 72 via the opening 74, it is ensured that the wing 14 cannot be lowered during the sliding phase.

The drive 70 thus serves with a single carriage 28 both for raising and lowering the wing 14, as well as for moving it.

Claims (16)

1. Lift-slide fitting for a window or a door ( 10 ) with at least one running shoe arranged on the underside of the sash ( 14 ) of the window or door ( 10 ) and a motor drive ( 70 ) for sliding the sash ( 14 ) of the window or door ( 10 ), characterized in that the drive ( 70 ) is connected to the lift fitting via a gear so that the window or door ( 10 ) can be lifted with this drive ( 70 ). 2. Lift-slide fitting according to claim 1, characterized in that the gear is a slider-crank gear ( 24 ) or a gear transmission. 3. Lift-slide fitting according to one of the preceding claims, characterized in that the drive ( 70 ) is a rotary drive or a linear drive. 4. Lift-slide fitting according to one of the preceding claims, characterized in that for manual operation a first lifting gear ( 22 ), optionally with a lock, is provided in the frame ( 18 ) of the leaf ( 14 ) of the door ( 10 ). 5. Lift-slide fitting according to one of the preceding claims and according to claim 2, characterized in that the slider crank mechanism ( 24 ) engages a second lifting mechanism ( 26 ). 6. Lift-slide fitting according to claim 4 and 5, characterized in that the two lifting gears ( 22 and 26 ) are designed identically. 7. Lift-slide fitting according to claim 5 or 6, characterized in that the second lifting gear ( 26 ) has a handle nut ( 40 ) with a nut extension ( 48 ) and the slider crank gear ( 24 ) drives the handle nut ( 40 ). 8. Lift-slide fitting according to claim 7, characterized in that the nut extension ( 48 ) is connected via a pivot pin ( 50 ) to a link ( 52 ) which engages a pull rod ( 56 ) which is connected to the running shoe. 9. Lift-slide fitting according to claim 8, characterized in that the pull rod ( 56 ) is coupled to a nut extension ( 60 ) of the first lifting gear ( 22 ). 10. Lift-slide fitting according to one of claims 4 to 9, characterized in that the lifting gears ( 22 and 26 ) are not self-locking in their end positions. 11. Lift-slide fitting according to one of claims 2 to 10, characterized in that the slider-crank gear ( 24 ) has a guide pin ( 42 ) which is guided in a linear guide ( 72 ) in the sliding phase of the gear movement. 12. Lift-slide fitting according to claim 11, characterized in that a carriage ( 28 ) displacing the window or the door is guided in the guide ( 72 ). 13. Lift-slide fitting according to claim 12, characterized in that the slider crank mechanism ( 24 ) is driven by the carriage ( 28 ). 14. Lift-slide fitting according to one of claims 11 to 13, characterized in that the guide pin ( 42 ) is guided into the linear guide ( 72 ) via a control guide ( 46 ) during the lifting phase of the gear movement. 15. Lift-slide fitting according to claim 14, characterized in that the control link ( 46 ) prevents a displacement of the sash ( 14 ) of the window or the door ( 10 ). 16. Lift-slide fitting according to one of the preceding claims and according to claims 4 and 5, characterized in that the lifting gears ( 22 and 26 ) are mechanically coupled to one another.