Holding device for a solar panel on a parapet of a balcony

Abstract

The invention relates to a holding device (1) for a solar panel (2) on a parapet (3) of a balcony, said device having at least the following components: a connection arrangement (4) for connecting an element to be held, wherein the connection arrangement has at least one support (5, 6, 7, 8) for placing on a parapet; and at least one transverse strut (9, 10) for bridging a parapet width, wherein the at least one transverse strut is connected to the connection arrangement and has at least one flange (12, 13) for placing on a parapet, wherein by means of a movement of the at least one flange towards the connection arrangement, the at least one flange and the at least one support press in opposite directions against the parapet. The invention disclosed relates to a holding device which allows for greater flexibility with regard to the structure of a balcony parapet.

Claims

1. A solar module (1,2) mounted on a railing (3) of a balcony comprising: at least one solar element (51) for converting incident solar radiation into usable energy; a frame (52) for stabilizing the solar element (51); and a mounting bracket for supporting the at least one solar cell element (51) comprising: a tethering device (4) for tethering the at least one solar cell element to be supported (2) and integrally formed with the frame (52), wherein the tethering device (4) comprises at least one support (5,6,7,8) for abutment to a railing (3); and two cross bars (9,10) for bridging a railing width (11), wherein the two cross bars (9,10) are connected to the tethering device (4) and wherein the two cross bars comprise a flange (12,13) each for abutment to a railing (3), wherein the respective flange (12,13) and the at least one support (5,6,7,8) press each other against the railing (3) in opposed directions by means of a movement (14) of the respective flanges (12,13) towards the tethering device (4), wherein the two cross bars are pivotable about a corresponding axis (16) parallel to the railing plane (15) of a railing (3), wherein the axes for each cross bar are spaced apart laterally.

2. The mounted solar module (1,2) according to claim 1, wherein a clamping force (17) is applicable to the railing (3) by means of the respective flange (12,13) in cooperation with the at least one support (5,6,7,8).

3. The mounted solar module (1,2) according to claim 2, wherein, for pivoting the two cross bars (9,10), at least the following components are provided for each cross bar (9,10): a guide cylinder (18) concentric to the respective axis (16) and comprising a swivel guide path (19), wherein the swivel guide path (19) extends over an angle range of 45 to 90, preferably 85, and axially over a longitudinal section, wherein the associated cross bar (9) is connected to the guide cylinder (18) in a rotationally fixed manner; a longitudinal guide path (20) formed in the tethering device (4), wherein the longitudinal guide path (20) axially extends over the longitudinal section; and a setting piston (21) comprising a guide element (22), wherein the guide element (22) extends into the swivel guide path (19) and into the longitudinal guide path (20) and limits a movement (14) of the setting piston (21) in this way, wherein the guide cylinder (18) is rotatable relative to the tethering device (4) by means of an axial movement (14) of the setting piston (21).

4. The mounted solar module (1,2) according to claim 3, wherein a threaded rod (23) is disposed in the guide cylinder (18), and the setting piston (21) comprises a female thread (24), and the setting piston (21) is axially shiftable by rotating the threaded rod (23).

5. The mounted solar module (1,2) according to claim 2, wherein, for pivoting the two-one cross bars (9,10), at least the following components are provided for each cross bar (9,10): a first ramp element (25) on the tethering device (4); a guiding rod (27) concentric to the axis (16), wherein the guiding rod (27) is connected to the respective cross bar (9) in a rotationally fixed manner; and a second ramp element (26) corresponding to the first ramp element (25), wherein the second ramp element (26) is connected to the guiding rod (27) in a rotationally fixed manner, and wherein the first ramp element (25) and the second ramp element (26) form a superimposed ramp pairing (28), wherein the guiding rod (27) is rotatable about the respective axis (16) by means of the superimposed ramp pairing (28) by means of a relative axial movement (29) between the first ramp element (25) and the second ramp element (26), wherein the relative axial movement (29) is preferably initiated by means of a weight force (30) of the tethering element (4) and/or of the at least one solar element to be supported (2) upon attachment to a railing (3).

6. The mounted solar module (1,2) according to claim 2, wherein the two cross bars (9) are pivotable by means of a gearing (63) in cooperation with a threaded worm gear (64).

7. The mounted solar module (1,2) according to claim 1, wherein the two cross bars (9,10) comprise at least one of the following features by means of which the two cross bars (9,10) have a variable length: a sliding connection (31) having an adjustable length between a first cross bar section (32) and a second cross bar section (33); a multi-part cross bar (9,10) multiply foldable about a transverse axis (34) oriented in parallel with respect to a railing (3); a cross bar (9) formed as a chain (59) which is extensible depending on the required length and lockable towards the tethering device (4); and a parallelogram (53) of a first parallel bar (54) and a second parallel bar (55) which are pivotable in parallel about a transverse axis (34) oriented in parallel with respect to a railing (3).

8. The mounted solar module (1,2) according to claim 2, wherein the two cross bars (9,10) are composed of two parts, namely a first bar (35,36) and a second bar (37,38), in an articulated fashion, wherein a first joint (39,40) of the first bar (35,36) and a third joint (43,44) of the second bar (37,38) is connectable to the tethering device (4), and wherein a second joint (41,42) is connectable to the respective flange (12,13), wherein the second joint (41,42) is movable relative to the tethering device (4) by means of changing a distance (45,46) between the first joint (39,40) and the third joint (43,44), wherein the third joint (43, 44) is preferably shiftable by means of a transverse threaded bar (47), wherein, particularly preferable, at the same time another two-part cross bar (10) is movable by means of the transverse threaded bar (47).

9. The mounted solar module (1,2) according to claim 1, wherein the mounting device (1) comprises at least one of the following means for fixing the mounted solar module in position: a locking device (48); and a tightening device (49,50) for establishing a tension between the two cross bars (9) and another component of the mounting device (1), preferably the another cross bar (10).

10. The mounted solar module (1,2) according to claim 1, wherein each cross bar has only a single flange.

Description

(1) The invention described above will be explained in detail below against the related technical background with reference to the associated drawings showing preferred embodiments. The invention is in no way limited by the purely schematic drawings, in which context it has to be noted that the drawings are not dimensionally correct and not suitable for the definition of proportions. What is shown in

(2) FIG. 1: is a mounting device on a balcony having a massive railing;

(3) FIG. 2: is a mounting device including a solar module;

(4) FIG. 3: is a pivotable flange including an anti-twist protection;

(5) FIG. 4: is a pivotable flange including a guide link;

(6) FIG. 5: is a pivotable flange including a ramp pairing in a first position;

(7) FIG. 6: is a pivotable flange including a ramp pairing in a second position;

(8) FIG. 7: is a ramp pairing in an exploded view;

(9) FIG. 8: is a cross bar including a sliding connection;

(10) FIG. 9: is a pairing of two-part cross bars;

(11) FIG. 10: is a cross bar including a tightening device and latching lugs;

(12) FIG. 11: is a multiply foldable cross bar;

(13) FIG. 12: is an isometric view of a cross bar formed as a chain;

(14) FIG. 13: is a side view of a cross bar formed as a chain in a first position;

(15) FIG. 14: is a side view of a cross bar formed as a chain in a second position;

(16) FIG. 15: is a side view of a cross bar formed as a chain in a third position;

(17) FIG. 16: is a mounting device including a solar module comprising cross bars formed as a parallelogram;

(18) FIG. 17: is a mounting device including a solar module comprising flanges foldable about a transverse axis;

(19) FIG. 18: is a cross bar pivotable by means of a worm drive;

(20) FIG. 19: is a detailed view of a worm drive; and

(21) FIG. 20: is an integrally formed mounting device in a frame of a solar module.

(22) In FIG. 1, a balcony having a massive railing 3 is schematically shown on which a solar module 2 is mounted by means of a mounting device 1. The weight forces of the solar module 2 are mainly accommodated by the first cross bar 9 and the second cross bar 10. The support securing force, namely the clamping force 17, is introduced into the railing 3 by the first flange 12 and the second flange 13 as the antagonists of the at least one support (here concealed by the railing 3). In the present case, the flanges 12 and 13 are pivoted to the inside for this purpose. The pivoting angle of the cross bars 9 and 10 is determined depending on the railing width 11. In addition, the flanges 12 and 13 are secured by means of the first tightening device 49, or the clamping force 17 is generated by means of the first tightening device 49, wherein the first tightening device 49 is, for example, a threaded rod or a wire cable comprising a tightening element.

(23) In FIG. 2, a mounting device 1 including a solar module 2 is shown which is composed of a solar element 51, for example, a photovoltaic plate, and a frame 52 which are, here, in the present form, integrally installed as a prefabricated member. In a preferred embodiment, the frame 51 is integrally formed with the tethering device 4 which is, here, screwed to the frame 52. Here, the flanges 12 and 13 are clampable to a railing 3 (comp. FIG. 1) by means of a movement 14 of the respective cross bars 9 and 10 about the axis 16 which is oriented vertically with respect to the railing plane 15, here to the inside. In this example, the pivot bearings of the cross bars 9 and 10 form the first support 5, the second support 6, the third support 7 and the fourth support 8.

(24) In FIG. 3, a pivotable flange 12 comprising a cross bar 9 of a mounting device 1 is shown, for example, as in FIG. 2. Here, a locking device 48 is formed with a saw tooth gearing, i.e. as a free wheel securing a set angle of rotation along the movement 14 about the axis 16.

(25) In FIG. 4 a further variation of the pivotable flanges 12 is shown in an exploded view along the axis 16 in which a guide cylinder 18 comprises a swivel guide path 19 covering an angle of about 90. In the guide cylinder 18, a setting piston 21 is disposed which is guided by the swivel guide path 19 with the aid of a, here pin-shaped, guide element 22. The guide element 22, furthermore, extends into the longitudinal guide path 20 which extends, here vertically, i.e. parallel to the axis 16, along about the same longitudinal distance as the swivel guide path 19. Since the longitudinal guide path 20 is fixed in the tethering device 4, the guide element 22 is not rotatable about the axis 16. Consequently, the guide cylinder 18 rotates about the axis 16 and takes the cross bar 9 connected in a rotationally fixed manner along. For initiating the movement 14, a threaded rod 23 is operable which cooperates with a female thread 24 in the setting piston 21. In a preferred embodiment but not shown here, a (detachable) hand knob is provided instead of a hexagonal or other torque head of the threaded rod 23 which requires a tool.

(26) In FIGS. 5 and 6, a similar configuration of a flange 12 and a cross bar 9 as shown in FIG. 4 is shown in a first position (FIG. 5) and in a second position (FIG. 6) turned with respect to it. A ramp pairing 28 of a first ramp element 25 disposed on a second ramp element 26 caters for a rotation about the axis 16. Either the (upper) first ramp element 25 moves down on the (lower) second ramp element 26 for turning, for example, due to the weight force 30, or, as shown here, the (lower) second ramp element 26 is held in the first position by means of an initial load (not shown here) and side tracks the turned first ramp element 25 along the relative axial movement 29 for the transfer into the second position. The guiding rod 27 is formed with the second ramp element 26 and the cross bar 9 in a rotationally fixed manner so that the flange 12 is turned in this way. In FIG. 7, an exploded view the ramp pairing 28 is shown to this end.

(27) In FIG. 8, a cross bar 9 is shown in a side view as a sliding connection 31 comprising a first cross bar section 32 and a second cross bar section 33 which are shiftable into each other or out of each other by means of the adjusting screw 56. Thus, the supports 5 and 6 of the tethering device 4 and the flange 12, or the abutment element designated here, are moved towards each other, and a clamping force 17 can be applied to a railing 3 (compare FIG. 1).

(28) In FIG. 9, a mounting device 1 is shown in a plan view in which two cross bars 9 and 10 are respectively temporarily provided by an outer first bar 35 or 36 and an inner second bar 37 or 38 which are connected to the tethering device 4 in an articulated manner. The first joint 39 or 40 is connected to the tethering device 4 so as not to be shiftable along the transverse axis 34. The third joint 43 or 44 is shiftably connected to the tethering device 4 and shiftable along the transverse axis 34 by means of the transverse threaded bar 47 here. In this way, the flange 12 or 13 which are hidden under the second joint 41 or 42 here, becomes movable towards the tethering device 4 so that the first distance 45 or the second distance 46 can be reduced and a clamping force 17 can be applied to a railing 3 in this way (compare FIG. 1). In this example, the cross bars 9 and 10, or the first bars 35 and 36 as well as the second bars 37 and 38, are synchronously movable by means of the common transverse threaded bar 47.

(29) In FIG. 10 a simple variation is shown in which a flange 13 can be tightened to a railing 3 (compare FIG. 1) by means of a second tightening device 50 which can be fit into a latching lug 57 in the tethering device 4.

(30) In FIG. 11, a multiply foldable cross bar 9 is shown by which a flange 12 can apply a clamping force to a railing 3 (compare FIG. 1) in cooperation with the tethering device 4. Potentially, further tightening elements are provided for this purpose.

(31) In FIGS. 12 to 15, a cross bar 9 is formed as chain 59 and shown in different positions. The flange 12 is, here, only drawn as a placeholder and can therefore, for example, be embodied as a hook element for a railing hook or as a hook of the tethering device 4 (not shown) as well as as a fixing element to a floor segment. The first individual member 60, the second individual member 61 and the third individual member 62 which are shown here (more individual members are also possible) are guidable via a guiding rail 58 by means of chain pins (not shown). The distance 45 can be continuously or discretely set thereby.

(32) In FIG. 16, a further variation of a mounting device 1 is shown in which the cross bars 9 and 10 are formed as parallelograms 53 (here, only the first cross bar 9 is provided with detailed numerals, and the second cross bar 10 has the same design). The (here two-part) solar module 2 is hinged to the tethering device 4 by means of hook elements here. The flanges 12 and 13 are movable about the transverse axis 34 by means of a movement 14 due to parallel tilting of the first parallel bar 54 and the second parallel bar 55 towards the tethering device. Here, this movement 14 is individually adjustable by means of the respective adjusting screw 56.

(33) In FIG. 17, a further variation of the mounting device 1 similar to FIG. 16 is shown in which the cross bars 9 and 10 are rigidly connected to the tethering device 4. The flanges 12 and 13 are tiltable about a transverse axis 34 and can therefore be placed in a force transmitting contact to a railing 3 (compare FIG. 1). Here, the associated clamping force 17 is applied through the adjusting screw 56 which is also a tightening element here.

(34) In FIG. 18, a cross bar 9 pivotable by means of a worm drive 65 and comprising a flange 12 is shown. The gearing 63 is disposed on the outside of an element of the tethering 4 rotatable about the axis 16 here. The threaded worm gear 64 is fixed against turning and drives the worm drive 65 so that the cross bar 9 is pivoted about the axis 16.

(35) In FIG. 19, the worm drive 65 of FIG. 18 is shown in detail, wherein an advantageous self-locking gearing 63 was selected here.

(36) In FIG. 20, an integrally formed mounting device 1 in a frame 52 of a solar module 2 comprising a solar element 51 is shown. The tethering device 4 is disposed in the frame 52 here. Therefore, this embodiment has a particularly flat design.

(37) With the invention shown here, a mounting device having a great flexibility with regard to the quality of a balcony railing is suggested.

LIST OF NUMERALS

(38) 1 mounting device 2 solar module 3 railing 4 tethering device 5 first support 6 second support 7 third support 8 fourth support 9 first cross bar 10 second cross bar 11 railing width 12 first flange 13 second flange 14 movement 15 railing plane 16 axis 17 clamping force 18 guide cylinder 19 swivel guide path 20 longitudinal guide path 21 setting piston 22 guide element 23 threaded rod 24 female thread 25 first ramp element 26 second ramp element 27 guiding rod 28 ramp pairing 29 relative axial movement 30 weight force 31 sliding connection 32 first cross bar section 33 second cross bar section 34 transverse axis 35 first bar of the first cross bar 36 first bar of the second cross bar 37 second bar of the first cross bar 38 second bar of the second cross bar 39 first joint of the first cross bar 40 first joint of the second cross bar 41 second joint of the first cross bar 42 second joint of the second cross bar 43 third joint of the first cross bar 44 third joint of the second cross bar 45 first distance 46 second distance 47 transverse threaded bar 48 locking device 49 first tightening device 50 second tightening device 51 solar element 52 frame 53 parallelogram 54 first parallel bar 55 second parallel bar 56 adjusting screw 57 latching lug 58 guiding rail 59 chain 60 first individual member 61 second individual member 62 third individual member 63 gearing 64 threaded worm gear 65 worm drive