BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS
Certain embodiments of the invention are described by way of illustration, without limitation thereto other than as set forth in the accompanying claims, reference being made to the accompanying drawings, wherein:
FIG. 1 is a perspective view, looking down upon the ground anchor of the present invention;
FIG. 2 is a perspective view of the ground anchor from below;
FIG. 3 is a perspective view from below of a table embodiment and an umbrella for individual or combined use with the anchor;
FIG. 4 is a top perspective view of a second table embodiment; and,
FIG. 5 is a side perspective view of the FIG. 4 embodiment
DETAILED DESCRIPTION OF THE INVENTION
Referring to FIGS. 1 and 2, the ground anchor 10 of the present invention has a base plate portion 12 with four ribbed corner spikes 14 projecting downwardly therefrom. Each spike 14 is braced by way of a deep diagonal gusset 16 which tapers towards the centre of the base plate 12; and by a reinforcing outer gusset 18 that is located between the ribs 20 that form the spike 14.
A deep bracing rib 22 extends laterally between the pairs of gussets 16, in mutual bracing relation therewith.
A central annular reinforcement ring 24 surrounds an opening 26 that connects with the cylindrical interior 30 of the hollow post portion 28 of the anchor 10.
On the underface (FIG. 2) and the top face (FIG. 1), an assembly of reinforcing ribs 32 serve to stiffen the polycarbonate plastic structure.
The post 28, which is integrally moulded with the other portions of the base plate 10, has four diagonal gusseted stiffener ribs 34.
The post 28 has an internally threaded boss 36 for a headed locking screw 38 which releasably engages the shaft 42 of the umbrella 40 (FIG. 3)
Referring to FIG. 3, a table 44 has a tapered stand 46 which slides down over the post 28 of anchor 10. A recess 48 receives the boss 36 of post 28, to orient the table 44 with the anchor 10; the annular base of the stand 46 resting on the tops of the ribs 34 of anchor 10, to prevent jamming of the tapered table stand 46 to the outer tapered surface of the post 28. The stand 46 may be made separable from the table top, to facilitate both shipping and hand-carrying by users.
Turning to FIGS. 4 and 5, a second table embodiment 50 has an aperture 52 that fits over the post portion 28, the table 50 having a downwardly depending boss 54 that is recessed to receive the tops of the four gussets 34. The table 50 has a pair of recessed cupholders 56, and a removable accessory holder 58. The boss 54 may be removably attached to the table 50.
In use, the anchor 10 is first installed, being thrust down under foot pressure applied against the rib-reinforced end portions of base plate 12. In harder turf, such as beside a sports field, the spikes 14 will afford a good grip, without having to force the ribs 22 fully down into the turf. However, particularly in sand, the bracing ribs 22 can be forced down so as to entrap a mass of sand in stabilizing relation with the base plate 12, to stabilize it against horizontal displacement as foot pressure is applied.
It will be understood by those skilled in the art that the above disclosure is directed primarily to specific embodiments of the present invention, and that the subject invention is susceptible of reduction to practice by those skilled in the art in other embodiments that fall within the scope of the appended claims.