Free-arm canopy, particularly for sun and rain protection

Abstract

A free arm standing parasol comprises a mast, on which an arm with its end of the arm facing towards mast is guided extendably and retractably via a mast slide and is thereby held by a supporting element between the arm and mast while the end of the arm facing away from the mast carries a parasol part with a crown, the parasol part comprising main struts which are radially hinged to the crown and associated supporting struts which are hinged to a corresponding main strut and a parasol slider. The parasol part is connected, via actuating organs, to a drive unit at the mast, a first actuating organ being connected to the mast slide via first deflection rollers for moving the mast slide up and down across a first functional distance, and a second actuating organ being coupled to the actuating organ via an action coupling and being connected to the parasol slider via second deflection rollers for moving the parasol slider across a second functional distance. To improve operability and stability, it is proposed that the second actuating organ be provided with a transmission unit configured in such manner that the first functional distance and the second functional distance have different lengths.

Claims

1. A free arm standing parasol having a mast on which an arm with its end of the arm facing towards the mast is guided extendably and retractably via a mast slide and is thereby held by a supporting element between the arm and the mast while the end of the arm facing away from the mast carries a parasol part with a crown, the parasol part which are radially hinged to the crown and associated supporting struts which are hinged to a corresponding main strut and a parasol slider the parasol part being connected, via actuating organs, to a drive unit the mast, a first actuating organ being connected to the mast slide via first deflection rollers for moving the mast slide up and down across a first functional distance, and a second actuating organ being coupled to the first actuating organ via an action coupling and being connected to the parasol slider via second deflection rollers for moving the parasol slider across a second functional distance characterized in that the second actuating organ is provided with a transmission unit configured in such manner that the first functional distance and the second functional distance have different lengths.

2. The free arm standing parasol according to claim 1, characterized in that the transmission unit is configured as a pulley.

3. The free arm standing parasol according to claim 1, characterized in that the transmission unit is configured as a toothed gear.

4. The free arm standing parasol according to claim 1, characterized in that the transmission unit is designed as a two-stage cable spool.

5. The free arm standing parasol according to claim 1, characterized in that the second actuating organ is guided from the action coupling along the mast, supporting element and arm to the slider.

6. The free arm standing parasol according to claim 1, characterized in that the second actuating organ is guided from a fixing point at the mast via a deflection roller at the mast slide along the arm to the parasol slider.

7. The free arm standing parasol according to claim 1, characterized in that the drive unit is configured as a gear with two rope spools, with a first rope spool being provided for lifting the mast slide and a second rope spool being provided for lowering the mast slide.

8. The free arm standing parasol according to claim 1, characterized in that the first actuating organ comprises a counterpull rope for lowering the mast slide.

9. The free arm standing parasol according to claim 8, characterized in that a tension spring is provided for stretching the counterpull rope.

10. The free arm standing parasol according to claim 2, characterized in that the second actuating organ is guided from the action coupling along the mast, supporting element and arm to the slider.

11. The free arm standing parasol according to claim 3, characterized in that the second actuating organ is guided from the action coupling along the mast, supporting element and arm to the slider.

12. The free arm standing parasol according to claim 4, characterized in that the second actuating organ is guided from the action coupling along the mast, supporting element and arm to the slider.

13. The free arm standing parasol according to claim 2, characterized in that the second actuating organ is guided from a fixing point at the mast via a deflection roller at the mast slide along the arm to the parasol slider.

14. The free arm standing parasol according to claim 3, characterized in that the second actuating organ is guided from a fixing point at the mast via a deflection roller at the mast slide along the arm to the parasol slider.

15. The free arm standing parasol according to claim 4, characterized in that the second actuating organ is guided from a fixing point at the mast via a deflection roller at the mast slide along the arm to the parasol slider.

16. The free arm standing parasol according to claim 2, characterized in that the drive unit is configured as a gear with two rope spools, with a first rope spool being provided for lifting the mast slide and a second rope spool being provided for lowering the mast slide.

17. The free arm standing parasol according to claim 3, characterized in that the drive unit is configured as a gear with two rope spools, with a first rope spool being provided for lifting the mast slide and a second rope spool being provided for lowering the mast slide.

18. The free arm standing parasol according to claim 4, characterized in that the drive unit is configured as a gear with two rope spools, with a first rope spool being provided for lifting the mast slide and a second rope spool being provided for lowering the mast slide.

19. The free arm standing parasol according to claim 5, characterized in that the drive unit is configured as a gear with two rope spools, with a first rope spool being provided for lifting the mast slide and a second rope spool being provided for lowering the mast slide.

20. The free arm standing parasol according to claim 6, characterized in that the drive unit is configured as a gear with two rope spools, with a first rope spool being provided for lifting the mast slide and a second rope spool being provided for lowering the mast slide.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Further details, advantages and features of the object of the present invention will become apparent from the following description and the corresponding drawings, in which the free arm standing parasol according to the present invention is illustrated by way of example. In the drawings, there is shown, in:

[0014] FIG. 1 a first embodiment of a free arm standing parasol in the open state and extended arm, as an overall view, in a sectional view;

[0015] FIG. 2 a detail view of the mast of FIG. 1 with a drive unit, in a sectional view;

[0016] FIG. 3 a detail view of the mast slide of FIG. 1, in a sectional view;

[0017] FIG. 4 a detail view of the arm with a parasol part of FIG. 1, in a sectional view;

[0018] FIG. 5 an overall view of the free arm standing parasol of FIG. 1, in the closed state and with retracted arm, in a sectional view, including a view of the first and second functional distances;

[0019] FIG. 6 a detail view of the mast slide of FIG. 5, in a sectional view;

[0020] FIG. 7 a second embodiment of a free arm standing parasol in the open state and extended arm, as an overall view, in a sectional view;

[0021] FIG. 8a a detail view of a mechanical transmission unit of the free arm standing parasol of FIG. 7, in a vertical sectional view; and,

[0022] FIG. 8b a detail view of a mechanical transmission unit of the free arm standing parasol of FIG. 7, in a horizontal sectional view.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0023] As can be seen from the figures, the free arm standing parasol comprises a standing mast 1 with an arm 2, which is guided with its end of the arm facing towards the mast 2.1 via a height-adjustable mast slide 4 and which is held in position by a pivotable supporting element 3 disposed between the mast 1 and the arm 2. The mast slide 4 can be extended and retracted across a first functional distance 4.1. The arm 2 carries at its end 2.3 facing away from the mast 1 a parasol part 5 having canopy 5.8 made of a flexible flat material, which canopy is carried by main struts 5.2 radially attached to crown 5.1 and by supporting struts 5.3 attached to height-adjustable parasol slider 5.5.

[0024] For extending or retracting of the arm 2 and for opening or closing of the umbrella part 5 an advantageously self-locking drive unit 6 with a hand crank 6.1 and/or motor drive is installed into the mast 1. Depending on the requirements, the drive unit 6 is provided with a gear 6.3 stepping-up or stepping-down the driving speed. A closed circulating toothed pulley 6.6 or a pull rope 6.7 serves as the first actuating organ 6.5 for the mast slide 4. If the circulating member is not closed, a counterpull rope 6.9 can be inserted for the mast slide 4.

[0025] In order to simultaneously actuate the parasol slider 5.5 for opening and closing the parasol part 5, a second actuating organ 7, for example a rope pull, is directly or indirectly coupled with the first actuating organ 6.5 by way of an action coupling 6.8. As a result, the parasol slider can be moved across a second second functional distance 5.7.

[0026] In a first embodiment according to FIGS. 1 to 6, the second actuating organ 7 is fixed with its one end 7.1 below the slide 4 at the mast 1 and it is guided into the arm 2 via a deflection roller 7.2 at the mast slide 4. In order to achieve the necessary travel height of the slider 5.5 for a broad support of the canopy struts 5.2 of the parasol part 5, the second actuating organ 7 is provided with a transmission unit 8, e.g. with a pulley 8.1. For this purpose, attached to the rope pull 7 there is a pulley roll 8.2 over which pulley rope 8.3 is guided, which pulley rope is attached, at one end thereof, to a fixing point 8.4 at the end of arm 2.3 and which carries, at the other end thereof, the parasol slider 5.5 over the deflection roller 5.6.

[0027] The transmission unit 8 is configured in such manner that the first functional distance 4.1 and the second functional distance 5.7 have different lengths.

[0028] In a second embodiment according to FIGS. 7 and 8, the second actuating organ 7 coupled to the transmission unit 8 is connected to the first actuating organ 6.5 at the action coupling 6.8 in the interior of the mast and is connected via deflection rollers from the mast 1 via the supporting element of the arm 3 and, within arm 2, with the pulley roll 8.2 of the transmission unit 8, which establishes a larger travel for the parasol slider 5.5 than for the mast slide 4.

[0029] FIG. 8 shows a variant in which the transmission unit 8 is configured as a mechanical gear with a double rope spool with different diameters. The drive rope spool 8.6 is anchored with its axis 8.5 to the arm 2 and is tightly connected to the end of rope pull 7 facing away from the mast 7.3. The drive rope spool 8.7 has a larger diameter and is fixedly connected to the parasol slider rope 8.8. This results in a different travel distance for the parasol slider than that of the mast slide 4. Alternatively, according to a non-depicted embodiment, the transmission unit can be configured as a gear with teeth, which allows more precise graduations of the differing travel distances.

LIST OF REFERENCE NUMERALS

[0030] 1 Mast [0031] 2 Arm [0032] 2.1 end of the arm facing towards the mast [0033] 2.3 end of the arm facing away from the mast [0034] 3 supporting element between arm and mast [0035] 4 mast slide [0036] 4.1 first functional distance for the mast slide [0037] 5 parasol part [0038] 5.1 crown [0039] 5.2 main struts [0040] 5.3 supporting struts [0041] 5.5 parasol slider [0042] 5.6 deflection roller at crown 5.1 [0043] 5.7 second functional distance for parasol slider [0044] 5.8 canopy surface [0045] 6 drive unit [0046] 6.1 hand crank [0047] 6.3 reducer gear [0048] 6.5 first actuating organ [0049] 6.6 circulating toothed pulley [0050] 6.7 pull rope to the mast slide [0051] 6.8 coupling position of the actuating organs (action coupling) [0052] 6.9 counterpull rope [0053] 6.10 tension spring to the counterpull rope [0054] 7 second actuating organ, rope pull [0055] 7.1 end of the rope pull at the mast side [0056] 7.2 deflection roller at the mast slide 4 [0057] 7.3 end of the rope pull 7 facing away from the mast [0058] 8 transmission unit [0059] 8.1 pulley [0060] 8.2 pulley roll [0061] 8.3 pulley rope [0062] 8.4 fixing point of the pulley rope end [0063] 8.5 axis of drive rope spool [0064] 8.6 drive rope spool [0065] 8.7 drive rope spool [0066] 8.8 parasol slider rope