US 5,899,640 AGranted

Anchoring device

OwnerYung-tien Yehinventor

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Abstract

An anchoring device includes a cam rod having a pair of dual-spiral grooves thereon which are orthogonal to each other. The cam rod is provided with a pedal. A direction-switching device is enveloped onto the cam rod. An anchoring root is releasably engaged to the lower portion of the direction-switching device. The direction-switching device includes a driving wedge which is engaged with a socket of the anchoring root. The anchoring root can be engaged or disengaged with the direction-switching device. When the pedal is depressed, the direction-switching device can be driven by the spiral grooves of the cam rod. The anchoring root that is attached to the bottom of the direction-switching device is also rotated. The anchoring root is then screwed into the ground. After the anchoring root is positioned, the cam rod and the direction-switching device can be removed therefrom and a pole can be inserted into a pilot hole within the anchoring root.

Claims9

Dependent claims

An anchoring device, comprising:

a cam rod having an elongate shape and being provided with dual-spiral grooves that are orthogonal to each other, said cam rod further including a pedal mounted on a top thereof;
a direction-switching device enveloped onto said cam rod, said direction-switching device including a pair of guiding barrels that are movable along said cam rod, each of said guiding barrels being provided with a guiding wedge at an inner wall thereof and each of said guiding wedges being movable along one of said dual-spiral grooves of said cam rod such that the guiding wedge that is received in the respective spiral grooves makes said guiding barrels movable along said cam rod, each of said guiding barrels being further provided with a ratchet wheel, wherein an operational direction of each of said ratchet wheels is opposite to the other ratchet wheel, an enclosure being further enveloped onto said guiding barrels, a periphery of said enclosure being provided with a pair of movable biasing tabs wherein each of said biasing tabs can be selectively engaged with ratchet teeth of said ratchet wheels, said biasing tabs being mounted with a sliding switch that has a resilient plate thereon for positioning said sliding switch at a selected position, wherein both ends of said resilient plate of said sliding switch are selectively pressed against said biasing tabs, said enclosure being further enveloped with a housing that has an opening such that said sliding switch extends out of said housing, an interior wall of the enclosure being further provided with a driving wedge;
and
an anchoring root disposed beneath said direction-switching device, said anchoring root being provided with a spiral thread at an outer wall thereof, a top of said anchoring root being provided with a pilot hole for receiving a lower end of said cam rod, said anchoring root being further provided with a flange portion in which a connecting socket is provided, and said driving wedge of said enclosure of said direction-switching device being releasably engaged with said socket of said anchoring root.

1 more element

An anchoring device, comprising:

a cam rod having an elongate shape and provided with a first spiral groove and a second spiral groove on an outer surface thereof,
a direction-switching device into which the cam rod is inserted, the direction-switching device including:
(a) a first guiding barrel, wherein an inner wall of the first guiding barrel includes a first guiding wedge that is received in the first spiral groove of the cam rod, wherein the first guiding barrel is movable along the cam rod via engagement of the first guiding wedge in the first spiral groove, and wherein the first guiding barrel further includes a first ratchet wheel having a first operational direction,
(b) a second guiding barrel, wherein an inner wall of the second guiding barrel includes a second guiding wedge that is received in the second spiral groove of the cam rod, wherein the second guiding barrel is movable along the cam rod via engagement of the second guiding wedge in the second spiral groove, and wherein the second guiding barrel further includes a second ratchet wheel having a second operational direction, wherein the second operational direction is opposite the first operational direction,
(c) an enclosure around the first and second guiding barrels,
(d) a first movable biasing tab provided at a periphery of the enclosure, wherein the first movable biasing tab can selectively engage teeth of the first ratchet wheel,
(e) a second movable biasing tab provided at the periphery of the enclosure, wherein the second movable biasing tab can selectively engage teeth of the second ratchet wheel,
(f) a resilient plate selectively pressing against the first or the second movable biasing tabs,
(g) a sliding switch engaged with the resilient plate, wherein the resilient plate holds the sliding switch at a selected position,
(h) a driving wedge extending from a wall of the enclosure, and
(i) a housing around the enclosure, wherein the housing defines an opening such that a portion of the sliding switch extends out of the opening,
a pedal mounted on the cam rod for pushing the cam rod into the direction-switching device, and
an anchoring root engaged with the direction-switching device, wherein the anchoring root includes:
(a) an elongate body having a spiral thread on an outer wall thereof,
(b) a flange including a pilot hole defined therein, wherein the flange includes a connecting socket that releasably engages the driving wedge of the enclosure.

12 more elements

Dependencies are inferred from the claim text.