EP1197627A1 - Drive for doors, especially garage doors - Google Patents

Abstract

Drive for doors, especially garage doors, comprises door rollers (18) arranged on each side of the moving part of the door and guided in fixed rails (16), and a drive unit (24) consisting of at least one motor (26) and one gear. Two opposite-rotating drive shafts on which rope rollers (28, 30) are arranged lead out of the drive unit. A rope (38) with two free ends (40, 42) is wound on each rope roller. To open or close the door the door rollers or the door edges interact with the ropes so that the rotation of the rope rollers is transferred to the door rollers or edges. Preferred Features: The drive unit is arranged on the door leaf of a swing door or on a segment, preferably the uppermost segment, of a sectional door, or is fixed e.g. to the garage roof.

Description

The invention relates to a drive for gates, in particular garage doors according to the Preamble of claim 1.

Motorized gates are widely used. A common use case is a motorized garage door. Such gates are often called Sectional doors made of several horizontally arranged one above the other Slats exist, the respective slats on the right and left Door rollers are guided in rails. The vertically mounted on the wall Running rails go in a horizontal position parallel to one another via a curved curve Building ceiling above. From the closed to the open position of the gate the door rollers run through the vertical rails through the rail arch up to to the horizontal end position. The upper door rollers of the upper end slat are often guided in a separate rail, which is immediately above the horizontal rail is arranged. This rail does not go over an arch across the vertical area, but at most runs in with a little tilt about straight to the point of falling. This allows the upper lamella close to the Side frame and can be folded at the lintel. The drives for the aforementioned gates usually consist of one that can be moved back and forth in a drive rail Sled over a gate driver or a pull rod on the top Slat of the sectional door is coupled. The drive consists of at least a motor and a transmission, via which the in the drive rail Sled back and forth movable chain or the drive belt is driven.

In addition to the sectional door described above, others are also Door leaf designs, such as one-piece swing gates over the in the carriage back and forth slide open or closed.

The drives mentioned have the disadvantage that the drive rail is in the center must be arranged in the building ceiling, for example the garage ceiling and that for the door driver that can be moved along the drive rail in the area the ceiling of the building must be kept free of movement got to.

The object of the invention is to provide a drive for gates, on the one hand is simply constructed and can be arranged to save space.

According to the invention, this object is achieved by means of a drive for gates Combination of the features of claim 1 solved. Conceptually it is in the drive according to the invention around a cable drive. Here are one out at least one motor and a transmission unit consisting of two drive units counter-rotating drive shafts are provided. There is one on each pulley Rope wrapped with two free ends. The rope ends are on the side the gate rollers arranged to open or close the gate in such a way in operative connection that the rotational movement of the rope pulleys in translation the door roller is converted. The rope ends can be used instead of Door rollers for opening or closing the door also with the door edges in this way are in operative connection that the rotational movement of the pulleys on the Gate edges is transferred. So all of the explanations below are the related to the door rollers, also to design variants transferred, where the rope ends attack the door edges.

According to the invention, the drive unit can directly on the door leaf in the case a swing gate leaf or on a slat in the case of a slat existing sectional doors. Alternatively, if so for example, should make the space available, the drive unit be stationary, for example on the garage ceiling. In this case the ropes are routed via appropriate deflection, for example deflection pulleys, out, and connected to the door rollers so that these by driving the Rope pulleys in a translational movement along the rails to open or closing the door leaf can be moved.

According to an advantageous embodiment of the invention, the free ends each rope in itself in the longitudinal extension of the running rails opposite sides at fixed points, the rope ends between the pulley and the fixed point in each case with the door rollers in Operationally connected rope deflections are performed. The one with the door rollers connected rope deflections can be divided and thus without dismantling the Be able to mount door rollers.

The rope pulleys can advantageously have a longitudinal bore through which the rope is performed before the ends are wound on the rope pulleys. In the Rotation of the rope pulleys is thereby shortened to the end and to the extent Rope reel in which the other end is extended, d. H. of the Rope pulley is unwound.

To better guide the ropes, rope grooves can advantageously be used on the rope pulleys be provided, with the adjacent rope pulleys different slope directions are realized.

The transmission of the drive unit is particularly advantageous by a Worm gear realized, with a centrally arranged worm each combs gears fixed to the pulleys. The motor driven worm is central between the two gears arranged.

Further details and advantages of the invention are described in the Drawing illustrated exemplary embodiment explained in more detail.

Fig. 1:

Eine teilweise geschnittene Darstellung des oberen Torbereiches mit einem Antrieb gemäß einer Ausführungsvariante der vorliegenden Erfindung,

Fig. 2:

ein vergrößertes Detail gemäß Figur 1, in welcher die Torlaufrolle im Schnitt vergrößert dargestellt ist,

Fig. 3:

eine Draufsicht von Hinten auf die mit der Torlaufrolle verbundene Umlenkeinrichtung,

Fig. 4a, b, c:

verschiedene Darstellungen, der Seilrolle, teilweise geschnitten, und die

Fig. 5a, b:

Ansichten der nebeneinander angeordneten Seilrollen zur Verdeutlichung der Seilkinematik.

Show it:

Fig. 1:

A partially sectioned representation of the upper gate area with a drive according to an embodiment variant of the present invention,

Fig. 2:

2 shows an enlarged detail according to FIG. 1, in which the door roller is shown enlarged in section,

Fig. 3:

a top view from the rear of the deflection device connected to the door roller,

4a, b, c:

different representations, the pulley, partially cut, and the

5a, b:

Views of the rope pulleys arranged next to each other to illustrate the rope kinematics.

In the embodiment shown in the drawing, a drive for is an example Garage door shown. In Figure 1 is the upper gate area of a sectional door 10 shown.

From the sectional door 10, the uppermost sectional door slat 12 is shown, which is to the side of fixed gate side frames 14 is bordered. The garage ceiling is in known manner essentially horizontally running tracks 16 admitted. Along these rails roll rollers 18 during the Opening or closing movement of the sectional door 10. The door rollers 18 are each rotatably mounted on a shaft, which is connected to the bracket via a bracket 22 top slat of the sectional door is rigidly connected. On the top door leaf 12, the drive unit 24 is additionally fixed in the center. This consists of an electric motor 26 and one shown only schematically in FIG Transmission. From the drive unit 24 are two counter-rotating Drive shafts led out, arranged on the respective pulleys 28 and 30 are.

The transmission for driving these pulleys 28 and 30 consists essentially of a centrally located worm 32, each diametrically to the side of it Oppositely arranged gears 34 and 36 meshes rigidly with the Rope pulleys 28 and 30 are connected.

On the pulleys 28 and 30, a rope 38 is wound, two each has free ends 40 and 42. In the embodiment shown here are the free ends 40 and 42 of the rope 38 extending from the rope pulley at stationary Fixed points 44 and 46 fixed. These fixed points are, as here in FIG. 1 shown, in each case in the longitudinal extension of the running rails 16 arranged opposite sides. The fixed point 44 is in imaginary Extension of the running rail 16 in the area of the fixed door frame 14 arranged, while the fixed point 46 at the opposite end of the Track 16 is provided in the area of the garage ceiling. At the benchmarks 44 and 46 are each clamping devices for the clamping reception of the Rope ends 40 and 42 provided. By loosening them accordingly Clamping devices, the respective rope end 40 or 42 can be tensioned.

Between the fixed points 44 and 46 and the pulleys 28 and 30, respectively Rope ends 40 or 42 around rope deflections connected to the door rollers 18 48 led. (see also FIGS. 2 and 3). The cable deflection 48 is radial and axial movably mounted on the door roller ax 20. The rope ends 40 and 42 are through corresponding recesses 50 and 52 (Fig. 2 and Fig. 3). By The free ends 40 and 42 become rotational movement of the pulleys 28 and 30 of the rope 38 shortened or lengthened. As a result, the cable deflection 48 and thus also the gate roller 18 along the running rail 16 via the gate axis 20 postponed. Of course, with the door roller over the connector 22 also the upper door lamella 12 and with it the entire sectional door 10 opened or closed.

The cable deflection 48 instructs at the points within the opening 50 and 52 where the rope ends 40 and 42 are in contact with the rope deflection, one low-friction surface. Interchangeable if necessary Sliding elements or small rolling bearings can be provided. So much for the course If the rope ends are necessary, additional plain or roller or roller bearings can be used be provided to redirect the rope and to rub it to avoid damage. Such a sliding element is shown in FIG which the rope end 40 is passed, designated 54.

The rope deflection 48, as shown in particular in Figure 3, is in two parts executed and can be divided, for example, by loosening a screw connection without having to dismantle the door rollers 18.

The structure of a rope pulley 28 is shown in FIG. Where in Figure 4 a Side view is shown, while a partial area is cut in FIG. 4c is shown and in Figure 4 b is a section along the section line A - A of the figure 4 c is shown. The drive shaft, which results from the drive unit, is not shown is led out and on which the pulley 28 sits.

The rope pulley 28 has a rotationally symmetrical with respect to the center line 56 Rope pulley laterally offset longitudinal bore 58. There are rope grooves on the surface 60 provided for receiving the rope 38. The rope 38 is, as in Figures a to c shown, passed through the longitudinal bore 58 and along the here right-handed slope of the rope grooves wound onto the rope pulley 58, the free rope ends 40 and 42 moving away from the rope pulley to that in FIG. 4 Fixed points 44 and 46 (cf. FIG. 1) which are not shown in detail here. Becomes the pulley, as shown in Figure 4 by the arrow, counterclockwise rotated, the rope end 40 is unwound, while the rope end 42 in the same Dimensions is wound on the pulley 28.

The rope kinematics is explained again with reference to FIG. 5. Here are both juxtaposed rope pulleys 28 and 30 shown. In Figure 5 a Kinematic situation shown for the opening of the gate. The pulley 28 has a left-hand slope of the rope grooves 60, while the pulley 30 a right-hand slope of the rope grooves. At the gate opening according to Figure 5 a the pulley 28 is rotated clockwise and the pulley 30 against the Clockwise. In this case, the rope end 40 is unwound in the rope pulley 28 and wound the rope end 42. In the same way, the rope pulley 30 Rope end 40 unwound and the rope end 42 wound. So both Casters 18, d. H. the left and right rollers 18 driven in the same way. 5 b shows the closing of the gate. Here the pulley 28 now driven counterclockwise while the pulley 30 in Is turned clockwise. Accordingly, the rope end 40 is wound up and that Rope end 42 unwound.

The different direction of slope of the rope grooves 60, as shown here, is not absolutely necessary for the overall function, but it does symmetrical cable inlet and cable outlet on both pulleys 28 and 30. The The effective diameter of the two pulleys is in the embodiment shown here identical.

The number of rope grooves 60 and 30 arranged on the circumference of the rope pulleys 28 and 30, respectively the effective diameter of the rope pulleys determine the maximum travel distance, d. H. Garage door operator stroke.

The present invention is not limited to that in this embodiment described rope kinematics limited. Rather, for example, there is also one Design variant within the scope of the invention, in which the cable ends 40 or 42 are not defined, but after appropriate redirection to the Door rollers or their storage are connected to the door rollers to translate according to the running rails.

Claims (9)

Drive for gates, in particular garage doors, with gate rollers arranged laterally on the movable part of the gate, which are guided in stationary running rails, and with a drive unit consisting at least of a motor and a gear,
characterized in that two counter-rotating drive shafts are brought out on the drive unit, on each of which a rope pulley is arranged, that a rope with two free ends is wound on each rope pulley and that the door rollers for opening or closing the door or the door edges in such a way are in operative connection with the ropes so that the rotational movement of the rope pulleys is transmitted to the door rollers or door edges. Drive according to claim 1, characterized in that the drive unit is arranged on the door leaf in the case of an up-and-over door leaf or on one, preferably the topmost slat in the case of a sectional door consisting of slats. Drive according to claim 1, characterized in that the drive unit is arranged stationary - for example on the garage ceiling. Drive according to one of claims 1 to 3, characterized in that the free ends of each rope are fixed to fixed points on the sides opposite each other in the longitudinal extension of the running rails, the rope ends between the rope pulley and the fixed point being guided in each case via rope deflections which are operatively connected to the door rollers , Drive according to one of claims 1 to 3, characterized in that the cable ends are connected to the door rollers after being guided around corresponding deflection rollers in such a way that the rotational movement of the cable rollers is converted into a longitudinal movement of the door rollers along the running rails. Drive according to one of claims 1 to 5, characterized in that the rope pulleys have a longitudinal bore through which the rope is guided before the ends are wound on the rope pulleys. Drive according to one of claims 1 to 6, characterized in that rope grooves with possibly different gradient directions are arranged on the rope pulleys. Drive according to one of claims 1 to 7, characterized in that the cable deflection connected to the door rollers can be divided and can thus be assembled without dismantling the door rollers. Drive according to one of claims 1 to 8, characterized in that the drive unit contains a worm gear, which also has a central worm, which meshes with gears connected to the pulleys in a rotationally fixed manner.

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