Abstract
A base includes an expandable central chamber which, in the expanded state, forms a sleeve with an end open to the top for receiving a rod, a base element and at least one expandable connecting chamber connecting the central chamber to the base element.
Claims
1. An expandable base, comprising: an expandable central chamber comprising, in an expanded state, an elongate sleeve with an opening extending longitudinally from an open top end of the sleeve to a bottom of the sleeve, and configured to hold a rod; a base element comprising an expandable base chamber; and at least one expandable connecting chamber arranged circumferentially about the expandable central chamber and which connects the expandable central chamber to the base element.
2. The expandable base according to claim 1, wherein the expandable central chamber, the at least one expandable connecting chamber, and the expandable base chamber form airtight chambers.
3. The expandable base according to claim 1, wherein the expandable central chamber, the at least one expandable connecting chamber, and the expandable base chamber are expandable by inflation.
4. The expandable base according to claim 1, wherein the base element further comprises a floor mat.
5. The expandable base according to claim 4, wherein the expandable base chamber forms a base ring in the expanded state and the floor mat covers an area circumferentially defined by the base ring.
6. The expandable base according to claim 4, wherein a bottom end of the expandable central chamber opposite the open top end is connected to the floor mat.
7. The expandable base according to claim 4, wherein the base element further comprises a cover, thereby forming a cavity defined by the cover, the floor mat, and the base chamber.
8. The expandable base according to claim 1, wherein the open top end forms an opening in the form of a slot, a circle, an oval, or a polygon.
9. The expandable base according to claim 1, wherein the expandable base chamber and the at least one expandable connecting chamber form a continuous chamber.
10. The expandable base according to claim 1, wherein the at least one expandable connecting chamber is in the form of a transverse strut connecting the expandable central chamber to a circular expandable base chamber and which prevents the expandable central chamber from tilting.
11. The expandable base according to claim 1, wherein at least one expandable connecting chamber comprises three tubular connecting chambers, each tubular connecting chamber being at an angle from 20? to 60? with respect to a vertical axis of the expandable central chamber.
12. The expandable base according to claim 1, wherein the base chamber comprises a valve for inflating the base chamber.
13. The expandable base according to claim 1, wherein the expandable central chamber, in an expanded state, is configured to receive and securely hold an umbrella.
14. An expandable base, consisting of: an expandable central chamber comprising, in an expanded state, an elongate sleeve with an opening extending longitudinally from an open top end of the sleeve to a bottom of the sleeve and configured to securely hold a rod; an expandable base chamber which forms a base ring in the expanded state and has a valve for inflating; a floor mat that covers an area circumferentially defined by the expanded base chamber, three expandable connecting chambers, each connecting chamber connecting the expandable central chamber to the base element; and optionally one or more weight elements.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0043] The invention is subsequently explained again with reference to the figures.
[0044] FIG. 1 shows an exemplary embodiment of a base according to the invention in a perspective view.
[0045] FIG. 2 shows an exemplary embodiment of a base according to the invention in a top view.
[0046] FIG. 3 shows an exemplary embodiment of a base according to the invention in a perspective view from below.
[0047] FIG. 4 shows a sectional depiction of an exemplary embodiment of a base according to the invention.
[0048] FIG. 5 shows a sectional depiction of an exemplary embodiment of a base according to the invention.
[0049] FIG. 6 shows an exemplary embodiment of a central chamber of a base according to the invention in a top view.
DETAILED DESCRIPTION OF THE DRAWINGS
[0050] FIG. 1 shows an exemplary embodiment of a base 1 according to the invention in a perspective view. The base comprises an expanded central chamber 2 with an opening 9 arranged above for receiving an umbrella rod, which may be inserted into central chamber 2 in the longitudinal direction, so that central chamber 2 surrounds the rod. Central chamber 2 is held in the vertical alignment by expanded connecting chambers 3, 4, 5 designed as transverse struts. Connecting chambers 3, 4, 5 extend from the upper end of central chamber 2 to an expanded base chamber 8, which surrounds the lower end of central chamber 2 as a circular base ring. Base chamber 3 represents the lateral delimitation of a base element 6, which additionally has a floor mat 7, which covers the area delimited by base chamber 8. Floor mat 7 is connected water-tight to base chamber 8, so that the space, which is delimited laterally by base chamber 8 and from below by floor mat 7 may be filled with water. The water acts as a weight element, so that base chamber 8 and thus connecting chambers 3, 4, 5 remain in the depicted alignmenteven with a rod inserted into central chamber 2and may hold the inserted rod upright. Central chamber 2, connecting chambers 3, 4, 5, and base chamber 8 are configured as inflatable chambers, wherein the valve or the valves for inflating the chambers are not depicted.
[0051] FIG. 2 shows an exemplary embodiment of a base 1 according to the invention in an expanded state in a top view. Base 1 comprises a central chamber 2, which is connected to three connecting chambers 3, 4, 5, wherein the lower ends of connecting chambers 3, 4, 5 are respectively connected to base chamber 8. Connecting chambers 3, 4, 5, are arranged distributed regularly circumferentially about central chamber 2, and extend radially from central chamber 2 to base chamber 8, when viewed from above. Central chamber 2 forms a sleeve, into which a rod may be inserted through opening 9. Base element 6 comprises, in addition to base chamber 8, a floor mat 7, which connects the lower end of the central chamber completely to base chamber 8.
[0052] FIG. 3 shows an exemplary embodiment of a base 1 according to the invention in the expanded state in a perspective view from below. Base 1 comprises a base element 6 with a floor mat 7, which represents the lower end of base element 6, and at whose outer edge a base chamber 8 is arranged. Base 1 comprises a central chamber 2, whose lower end is sealed, wherein floor mat 7 is connected water-tight to central chamber 2. According to the invention, the lower end of central chamber 2 may also be sealed by floor mat 7.
[0053] FIG. 4 shows a sectional depiction of an exemplary embodiment of a base 1 according to the invention in the inflated state. A central chamber 2 is arranged vertically and forms a sleeve, through whose opening 9 a rod may be inserted and pushed in up to floor mat 7. Central chamber 2 is connected to connecting chambers 3, 4, 5, which extend form central chamber 2 up to base chamber 8. Base chamber 8 is connected to floor mat 7 and surrounds the same along the circumference. Base chamber 8 comprises a valve 10, via which base chamber 8, and the additional inflatable chambers, may be inflated, or from which air may be discharged.
[0054] FIG. 5 shows a sectional depiction of an exemplary embodiment of a base 1 according to the invention in the inflated state. Base element 6 comprises a circumferential base chamber 8, a floor mat 7 arranged below, and a cover 12 arranged above floor mat 7. In this way, a cavity is formed between floor mat 7, base chamber 8, and cover 12, which may be filled or emptied via valves 11 and 13.
[0055] FIG. 6 shows an exemplary embodiment of a central chamber of a base 1 according to the invention in a top view. Central chamber 2 has a quadratic opening with semi-circular indentations in the direction of the central opening. Such an opening enables the fixing of rods with diverse cross-sectional shapes and diverse cross-sectional sizes.
LIST OF REFERENCE NUMERALS
[0056] 1) Base [0057] 2) Central chamber [0058] 3) Connecting chamber [0059] 4) Connecting chamber [0060] 5) Connecting chamber [0061] 6) Base element [0062] 7) Floor mat [0063] 8) Base chamber [0064] 9) Opening [0065] 10) Valve [0066] 11) Valve [0067] 12) Cover [0068] 13) Valve
