Planar spiral gearbox and door drive component and door drive having said gearbox

Abstract

The invention relates to a planar spiral gearbox, in particular for use in a door system, comprising: a gear, in particular a scroll plate, having a planar side on which a spiral toothed arrangement is arranged having at least one tooth that has a spiral tooth progression; and a cylindrical gear, in particular a torus gear, that has an external toothed arrangement at its jacket surface, wherein the spiral toothed arrangement of the gear is in meshing engagement with the external toothed arrangement of the cylindrical gear, with the gear having at least one additional toothed arrangement section that is radially spaced apart from an axis of rotation of the gear and serves for engagement of a drive toothed arrangement.

Claims

1. A planar spiral gearbox, for use in a door system, comprising: a gear, as a scroll plate, having a planar side on which a spiral toothed arrangement is arranged having at least one tooth that has a spiral tooth progression; and a cylindrical gear, as a torus gear, that has an external toothed arrangement at its jacket surface, wherein the spiral toothed arrangement of the cylindrical gear is in meshing engagement with the external toothed arrangement of the cylindrical gear, and the gear has at least one additional toothed arrangement section that is radially spaced apart from an axis of rotation of the gear and serves for engagement of a drive toothed arrangement.

2. A planar spiral gearbox in accordance with claim 1, wherein the additional toothed arrangement section has a cylindrical jacket shape whose axis is identical to the axis of rotation of the gear and that has a toothed arrangement at its inner and/or outer side to engage a drive toothed arrangement.

3. A planar spiral gearbox in accordance with claim 1, wherein the additional toothed arrangement section is arranged at a side of the gear that is oppositely disposed the planar side that has the spiral toothed arrangement.

4. A planar spiral gearbox in accordance with claim 1, wherein the additional toothed arrangement section has a radial distance from the axis of rotation of the gear that is greater than the maximum radial distance of the spiral toothed arrangement from the axis of rotation.

5. A planar spiral gearbox in accordance with claim 1, wherein the spiral tooth progression or the spiral toothed arrangement corresponds to the progression of a spiral whose origin lies on the axis of rotation of the gear, with the spiral tooth progression preferably corresponding to an Archimedean spiral.

6. A planar spiral gearbox in accordance with claim 1, wherein the additional toothed arrangement section is arranged at a projection that surrounds the spiral toothed arrangement and extends radially outwardly so that the additional toothed arrangement section is perpendicular to the axis of rotation or includes an acute angle with the perpendicular on the axis of rotation.

7. A planar spiral gearbox in accordance with claim 1, wherein the additional toothed arrangement section is arranged at a side of the gear that faces the planar side that has the spiral toothed arrangement.

8. A planar spiral gearbox in accordance with claim 1, wherein a plurality of additional toothed arrangement sections are provided of which each one has a toothed arrangement for engagement of a drive toothed arrangement, with the plurality of additional toothed arrangement sections preferably generating different transmission ratios in the planar spiral gearbox.

9. A planar spiral gearbox in accordance with claim 1, wherein the gear is configured only to be driven by its at least one additional toothed arrangement section.

10. A door drive component comprising: a planar spiral gearbox in accordance with claim 1; and a case that surrounds the planar spiral gearbox and that has a plurality of openings for introducing a drive toothed arrangement of a drive motor for a cooperation with one or more toothed arrangements of the at least one additional toothed arrangement section.

11. A door drive component in accordance with claim 10, wherein the plurality of openings lead to different toothed arrangements of the additional toothed arrangement section and/or to different additional toothed arrangement sections, and the openings are preferably components of a drive motor receiver in the case.

12. A garage door drive, comprising: a planar spiral gearbox in accordance with claim 1; and at least one drive motor having a drive toothed arrangement that meshes with a toothed arrangement of the at least one additional toothed arrangement section, wherein preferably a shaft of the drive motor driving the drive toothed arrangement is led through an opening in a case surrounding the planar spiral gearbox.

13. A door drive in accordance with claim 12, wherein a plurality of drive motors are provided to drive the planar spiral gearbox of which each one preferably cooperates with a different toothed arrangement of the at least one additional toothed arrangement section and/or with a separate additional toothed arrangement section.

14. A planar spiral gearbox in accordance with claim 2, wherein the additional toothed arrangement section is arranged at a side of the gear that is oppositely disposed the planar side that has the spiral toothed arrangement.

15. A planar spiral gearbox in accordance with claim 14, wherein the additional toothed arrangement section has a radial distance from the axis of rotation of the gear that is greater than the maximum radial distance of the spiral toothed arrangement from the axis of rotation.

16. A planar spiral gearbox in accordance with claim 3, wherein the additional toothed arrangement section has a radial distance from the axis of rotation of the gear that is greater than the maximum radial distance of the spiral toothed arrangement from the axis of rotation.

17. A planar spiral gearbox in accordance with claim 2, wherein the additional toothed arrangement section has a radial distance from the axis of rotation of the gear that is greater than the maximum radial distance of the spiral toothed arrangement from the axis of rotation.

18. A planar spiral gearbox in accordance with claim 15, wherein the spiral tooth progression or the spiral toothed arrangement corresponds to the progression of a spiral whose origin lies on the axis of rotation of the gear, with the spiral tooth progression preferably corresponding to an Archimedean spiral.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) Provision can furthermore be made in this process that the planar spiral gearbox is further developed in accordance with one of the preceding variants.

(2) Further features, details and advantages of the invention will be explained with reference to the following description of the Figures. There are shown:

(3) FIG. 1: a perspective view of a door having a drive that comprises a planar spiral gearbox;

(4) FIG. 2: an enlarged representation of the drive of FIG. 1;

(5) FIG. 3: a perspective view of a garage door having a drive that comprises a planar spiral gearbox;

(6) FIG. 4: an enlarged representation of the drive of FIG. 3;

(7) FIG. 5: an enlarged representation of the drive for actuating a door having a motor flanged on;

(8) FIG. 6: an enlarged representation of the drive for actuating a door without a motor flanged on;

(9) FIG. 7: a sectional representation of a planar spiral gearbox;

(10) FIG. 8: a worm shaft at the motor side with a scroll plate;

(11) FIG. 9: a torus gear;

(12) FIG. 10: a perspective view of a gearbox case having a planar spiral gearbox in accordance with the invention,

(13) FIG. 11: a perspective view of a gearbox case having a planar spiral gearbox in accordance with the invention with drive motors flanged on,

(14) FIG. 12: a partial sectional representation of FIG. 11,

(15) FIG. 13: a cross-sectional view of the planar spiral gearbox in accordance with the invention with motors flanged on;

(16) FIG. 14: a side view of a gearbox case having a planar spiral gearbox in accordance with the invention,

(17) FIG. 15: a perspective view of a planar spiral gear having a plurality of additional toothed arrangement sections;

(18) FIG. 16: a perspective view of a garage door drive in accordance with the invention,

(19) FIG. 17: a schematic plan view of an exemplary design of the garage door drive in accordance with the invention; and

(20) FIG. 18: an enlarged representation of the drive section of the garage door of FIG. 17.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

(21) FIGS. 1 to 4 show different application scenarios of a drive having a planar spiral gearbox with doors. FIGS. 1 and 2 thus show a roller door or a fast action door that is actuated by a door drive that has a planar spiral gearbox described in detail below.

(22) FIGS. 2 and 3 show such a drive with reference to a sectional door. It is clear to the skilled person that such a drive motor can also advantageously be used for different door types such as sliding doors or the like. The use in garage door drives, in particular for a heavy duty use such as in underground garages, can also be implemented with such a door drive.

(23) FIGS. 5 and 6 show an exemplary design of the planar spiral gearbox 4, a motor 5 flanged on (FIG. 5) and without a motor flanged on (FIG. 6). The shaft of the door to be actuated is installed in the receiver of the door shaft 6 and is rotationally fixedly fixed therein.

(24) FIG. 7 shows a section of the exemplary design. The shaft 1 at the motor side is shown here that engages into the torus gear 3 via the scroll plate 2. The torus gear rotated about the torus gear axis of rotation on a rotation of the scroll plate due to the spiral design. In this respect, the shaft at the motor side is rotationally fixedly connected to the scroll plate in the prior art.

(25) FIG. 8 shows the worm shaft 1 at the motor side having the scroll plate 2 and FIG. 9 shows the torus gear. It can be recognized here that the external toothed arrangement of the torus gear has a curved tooth profile so that there is a shape matched engagement of the scroll plate in the external toothed arrangement.

(26) The following Figures show an embodiment of the invention that is based on a modification of the planar spiral gearbox.

(27) Unliked in accordance with the prior art, the scroll plate is now not simply rotationally fixedly connected to a driving shaft, but rather has at least one additional toothed arrangement section at which an external toothed arrangement can engage to rotate the scroll plate.

(28) A gearbox case 10 having the receiver of the door shaft 6 is shown in FIG. 10. It can be recognized that the case 10 has a plurality of motor receivers, three 11, 12, 13 in the present case, of which each has an opening to lead through a drive shaft. It is thereby possible to bring a drive shaft or a drive toothed arrangement into active connection with one of the at least one additional toothed arrangement sections to cause the scroll plate to rotate.

(29) It can be seen from FIG. 11 that one to three motors can be installed in the three motor receivers, with the motor 14 being installed in the motor receiver 11, motor 15 in motor receiver 12, and motor 16 in motor receiver 13. The attachment of one of the plurality of motors is sufficient for an actuation of the door shaft 6, but it can be of advantage to flange on more than only one motor for performance reasons or also to reduce the likelihood of failure. The installation of the motor at a plurality of different positions is of further advantage due to the plurality of motor receivers so that the available space can be ideally used in dependence on the door type and characteristics. The gear transmission ratio can furthermore be influenced by the choice of the motor connector since all the installation locations can have different transmission ratios.

(30) Ultimately, a plurality of motors can in be installed in one gearbox for a higher power requirement. Redundancy is also present in this case so that the door can still be opened and closed at a reduced speed on the failure of one motor. The installation can be implemented in installation positions 11 and 12. Alternatively, with an adapted installation plate 31, two motors can run on the same ring gear. To be able to allow the torque to develop ideally, provision can be made to use at least one frequency converter (FC). The aforesaid installation is, however, only by way of example. The possibility for installing motors on one plate can thus be freely selected. Only at least one motor has to enter into engagement with a ring gear. Three motors can, for example, also be installed on the installation plate. The installation plate can also be rotated for this purpose so that—as shown in FIG. 11, for example—the two motors 14 and 15 can be installed not as shown as perpendicular, but rather as horizontal or at any other angle.

(31) FIG. 12 shows a partial section of the drive of FIG. 11, with a motor being installed at the scroll plate 2 at three positions (known from FIG. 10 and FIG. 11). The motor 14, whose spur gear 23 engages into the planar spiral gear 17 into the front toothed arrangement 22, in motor receiver 11; the motor 15, whose spur gear 21 engages into the planar spiral gear 17 into the internal toothed arrangement 20, in motor receiver 12; the motor 16, whose spur gear 18 engages into the planar spiral gear 17 into the external toothed arrangement 19, in motor receiver 13.

(32) The front toothed arrangement, the internal toothed arrangement, and the external toothed arrangement are each different additional toothed arrangement sections that are respective radially spaced apart from an axis of rotation of the gear and serve for engagement of a drive toothed arrangement. Due to the distance from the axis of rotation, an advantageous gear ratio also results in the rotation thereby caused of the scroll plate that would now have been generated with more force than on a direct rotation via the axis of rotation 1.

(33) FIG. 13 shows a sectional view from which it can be recognized that the scroll plate has a plurality of additional toothed arrangement sections at sections that are outwardly directed radially from the spiral toothed arrangement, said additional toothed arrangement sections cooperating with corresponding shafts of motors to effect a rotation of the scroll plate.

(34) FIG. 14 again shows the motor receivers 11 and 12 having the visible external toothed arrangement 22 for the motor 14 and the internal toothed arrangement 20 for the motor 15 in the gearbox case 10. The motor receiver 13 for the motor 16 is furthermore recognizable. The gear transmission ratio is influenced by the choice of the motor connector since all the installation locations can have different transmission ratios. A very wide range of use thus results even though, for example, only a single motor is used.

(35) FIG. 15 shows a specific aspect of a planar spiral gear used by the invention having a plurality of additional toothed arrangement sections, namely the front toothed arrangement 19 for the motor 16, the internal toothed arrangement 20 for the motor 15, and the external toothed arrangement 22 for the motor 14.

(36) FIGS. 16 to 18 show an exemplary design of a garage door drive. They comprise the drive housing 24 and the rail 25 in which the slide, not shown, runs and that in turn drives the garage door.

(37) Garage door drives are rather arranged in a flat manner due to the principle since they are installed between the upwardly swinging garage door and the ceiling. The design shown in FIGS. 17 and 18 is therefore advantageous.

(38) The rough design of the inner workings of the drive housing 24 with the rail 25 installed thereon is shown in FIG. 17. It can be seen here that two motors 26 and 27 are installed at the torus gear 3 via the scroll plate.

(39) Only one motor is actually required for the operation and can be installed—depending on the use—as the motor 26 or 27. In heavy duty use or as redundancy in critical applications (for example in underground garages), both motors can be installed.

(40) The design is illustrated in more detail in FIG. 18. The spur gear 29 of the motor 26 and the spur gear 30 of the motor 27 can be recognized here that act on the scroll plate 2. The scroll plate 2 engages into the torus gear that is connected to the drive gear of the toothed belt 28.