Beach umbrella pole assembly
An umbrella pole assembly for inserting and holding an attached beach umbrella in the ground includes: (a) an auger assembly on a first, lower, auger end of the pole assembly; (b) a cylindrical main pole extending from the auger assembly; and (c) a drill attachment member at an opposite, upper, drill bit end of the pole assembly, the drill attachment member being detachably attachable to a rotatable chuck of a separate, portable, handheld tool for rotating the auger assembly; wherein the pole assembly does not include a motor. The auger assembly includes a lower, cutting section attached to an upper, anchoring section, which is attached to the main pole.
This invention was described in Disclosure Document Number 600675, which was received by the U.S. Patent & Trademark Office on May 15, 2006.
BACKGROUND OF THE INVENTION1. Technical Field
This invention is a pole assembly that facilitates the installation and maintenance of a beach-type umbrella in malleable ground, especially at a beach, more particularly an umbrella pole assembly with a two-section auger and a drill attachment member for detachable attachment to a separate, handheld, motor-driven drill, screwdriver, or a like tool.
2. Background Information
Beach umbrellas serve to shield users from the direct rays of the sun at the beach and elsewhere, as desired. Beach umbrellas range in size from large umbrella assemblies with thick poles and heavy canvas canopies to lightweight types that can double as rain umbrellas. The typical beach umbrella pole has two members, an upper and lower member. The lower member typically includes a lower pole that is inserted into the ground. The upper member typically includes an upper pole that supports an umbrella canopy. Unfortunately, the wind outdoors, or simply the weight of the upper umbrella canopy and pole, often causes the whole umbrella assembly to tip over and fall to the ground. This poses an inconvenience and can pose a safety hazard. The wind sometimes continues to blow an open beach umbrella along the beach until it is hopefully caught.
A conventional beach umbrella pole can be very difficult to insert in the ground deeply and securely enough to stay up all day, especially for a person with limited upper body strength. At many beaches, the upper inch or two of sand may be soft, but the sand below the upper layer is often densely compacted. It is difficult to force a beach umbrella pole into the ground by hand. It is also difficult to hammer an umbrella pole into the ground without damaging the pole, particularly with a lightweight aluminum umbrella pole. The present invention includes an umbrella pole assembly that any user can easily insert into the sand or other ground using a separate, handheld, cordless screwdriver or drill, or a similar tool with a rotating drill chuck.
BRIEF SUMMARY OF THE INVENTIONThe present invention is an umbrella pole assembly that facilitates insertion and maintenance of a beach umbrella or the like in malleable ground at the beach or elsewhere, which includes:
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- (a) an auger assembly on a first, lower, auger end of the pole assembly;
- (b) a cylindrical main pole extending from the auger assembly; and
- (c) a drill attachment member connected to the main pole at an opposite, upper, drill bit end of the pole assembly. The main pole extends in the same direction as the auger assembly. The drill attachment member is detachably attachable to a rotatable chuck of a separate, portable, handheld, motor-driven tool for rotating the auger assembly and driving it into the ground. The pole assembly does not itself include a motor. The auger assembly preferably includes a lower, cutting section attached to a larger upper, anchoring section of the auger assembly, the upper, anchoring auger section being attached to the main pole. The auger assembly of the invention holds the umbrella in the sand by penetration, depth, and friction.
In use, the user operates the screwdriver or other handheld, motor-driven tool with a rotatable chuck, causing the drill attachment member to turn and easily penetrate the ground. The user detaches the screwdriver or other tool from the drill attachment member when finished. The user may then attach the upper umbrella pole to the pole assembly. To remove the main pole from the ground, the user reattaches the screwdriver or other tool to the drill attachment member portion and operates the tool in reverse.
Advantages of the umbrella pole assembly of the present invention include the following:
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- 1) easy insertion of the umbrella assembly pole into the ground, even when the ground is hard, compacted sand;
- 2) ready attachment to an existing portable cordless screwdriver or other handheld tool with a rotatable drill chuck to power turn the umbrella assembly pole;
- 3) easy removal of the portable cordless screwdriver or other handheld tool with its rotatable drill chuck, and optionally the drill bit;
- 4) easy placement of an umbrella canopy on the umbrella pole assembly;
- 5) easy removal of the umbrella pole assembly from the ground when desired; and
- 6) lightweight and easy to carry and store.
A more complete understanding of the invention and its advantages will be apparent from the following detailed description taken in conjunction with the accompanying drawings, wherein examples of the invention are shown, and wherein:
In the following description, like reference characters designate like or corresponding parts throughout the several views. Also, in the following description, it is to be understood that such terms as “front,” “back,” “within,” and the like are words of convenience and are not to be construed as limiting terms. Referring in more detail to the drawings, the invention will now be described.
With reference to the drawings, and in particular to
In use, the auger assembly 14 is driven into the sand or other ground material by a removable, handheld, motor-driven tool 30 for rotating the auger assembly. The tool 30 is attachable to the drill attachment member 16 of the umbrella pole assembly 10 as shown in
Referring to
The open end 39 of the upper umbrella pole 38 shown in
The two-section, helical, auger assembly 14 provides the umbrella pole assembly 10 with both the drilling force required to penetrate sand or other ground and the friction required to hold the umbrella assembly fast against wind uplift. A lower, cutting section 34 of the auger assembly 14 penetrates through the sand or ground, at the same time removing the sand or other ground material as it spirals in a downward direction. The safety tip 36, which is preferably made of aluminum, at the lower end 20 of the lower, cutting auger section 34 has a dual purpose in that it digs into the sand, yet is safe to use around children and adults. The lower, cutting section 34 is attached to an upper, anchoring section 35 of the auger 14, as seen in
As illustrated in
Referring to
The safety tip 36 of the auger assembly 14 protects against accidents, such as cuts caused by an otherwise sharp auger tip coming in contact with a finger or other part of the body. This is especially important where children are accompanying the user to the beach or other recreational spot. Such accidents are unlikely to occur with the present invention, since the tip of the auger remains covered by the auger safety tip 36 even during use. The lightweight, water resistant auger safety tip 36 is preferably substantially made of a metal such as aluminum, for durability even after repeated uses cutting through the earth. Since the metal safety tip 36 does the initial work, the rest of the auger assembly 14 can be made of the preferred softer hard plastic, also for safety reasons and because plastic is inexpensive and generally less subject to damage by a marine environment than metal or the like.
In the safety tip longitudinal cross-section shown in
As illustrated in
The auger assembly 14 preferably has a point at its lower end to facilitate easy penetration of the upper, shallow sand, and spirals to facilitate penetration of the deeper, more compacted ground and to inhibit movement of the umbrella pole assembly 10 once it has been inserted, as seen in
As seen in
In an alternate embodiment, a built-in or removable drill chuck replaces the drill attachment member 16 on the upper, drill bit end 21 of the pole 10. The built-in or removable drill chuck and the drill chuck 31 on the cordless screwdriver 30 can both grip a removable drill attachment member 16, preferably of a size corresponding to drill bits commonly used in cordless drills and screwdrivers, and the user operates the cordless screwdriver 30 in the same manner, turning the drill attachment member 16 and the pole assembly 10.
The present invention can be produced and sold as a complete beach umbrella 42, including the upper umbrella pole 38 attached to a ribbed canopy 40. Alternatively, the umbrella pole assembly 10 may be produced and sold separately and attached to a separately purchased upper umbrella pole with an umbrella canopy. A universal locking adaptor may be used to join the upper umbrella pole 38 to the umbrella pole assembly 10.
As seen in the transverse cross-section of the pole assembly depicted in
The pole assembly 10 itself is not motorized. In use, once the rotatable chuck 31 of the motor-driven screwdriver 30 or a similar type of tool is attached to the drill attachment member 16, the user depresses a power button, switch, or the like of the screwdriver 30 to operate a motor of the screwdriver 30. Depressing the button engages the tool electric motor, which rotates the tool chuck 31, which is preferably at the end of a shaft of the tool, at a selected speed in a clockwise direction. As the portable screwdriver 30 or other tool drives the auger assembly 14 in a clockwise direction, the auger assembly 14 digs down into the ground 37. The tool 30 preferably also includes a rechargeable battery, gear box, power drive, and power drive stabilizer (not shown).
Once the auger assembly 14 is buried in the ground 37, the screwdriver 30 (or other tool) is detached and stored in a carry bag or box or the like, where it is protected from the elements. The screwdriver 30 or other tool does not remain in place on the pole assembly 10 and is not an integral part of the pole assembly 10. This is advantageous in that the handheld screwdriver 30 or other tool can also be used for other purposes, and in that the screwdriver 30 or the like is not exposed to blowing sand or salt water spray from the ocean, which can cause corrosion (especially of screwdriver batteries). Also, detachment of the screwdriver 30 or other tool frees up the end of the main pole 12 for detachable attachment of the upper umbrella pole 38.
Once the auger assembly 14 has been inserted in the ground to a sufficient depth, the user detaches the cordless screwdriver 30 or other tool from the upper pole portion 15 (see
When the user wishes to leave the beach or other outdoor recreational area, the user collapses the umbrella canopy 40, pulls up on the lever 18 or unclasps any other attachment mechanism employed herein, and removes the upper umbrella pole 38 from the pole assembly 10. The user then reattaches the screwdriver 30 (or drill, etc.) to the drill attachment member 16 and presses a reverse switch or button on the screwdriver. The subsequent rotation of the screwdriver chuck moves the main pole 12 and its attached auger assembly 14 in a counterclockwise direction. As it turns in a counterclockwise direction, the auger assembly 14 reverses out of the hole. The screwdriver 30 (or drill, etc.), rotatable pole, and two-section auger assembly therefore facilitate both insertion and removal of the umbrella pole assembly 10 into and from the ground.
From the foregoing it can be realized that the present invention benefits end users by eliminating the need to push the end of an umbrella pole all the way into the ground by hand force alone. The invention further benefits users by eliminating the need to turn the umbrella pole by hand through the incorporation of a drill attachment member that is easily attachable to a suitable power tool for rotating the pole and auger assembly. The pole assembly therefore need not include a handle or a collar with support legs. The invention can be powered using commonly available cordless tools and does not require that a motor or power source be built into the pole assembly, which keeps the pole assembly of the invention lightweight and easy to carry. The invention can also be used away from the beach at other outdoor areas where it is desirable to install an umbrella for shade, such as at picnic grounds, by a lake or pond, in a sports game tailgating area, or just in a backyard.
While preferred embodiments of the invention have been described using specific terms, this description is for illustrative purposes only. It is to be understood that any materials and dimensions given herein are illustrative only, and are not meant to be limiting, but can be varied without changing the substance of the invention. It will be apparent to those of ordinary skill in the art that various modifications, substitutions, omissions, and changes may be made without departing from the spirit or scope of the invention, and that such are intended to be within the scope of the present invention as defined by the following claims. It is intended that the doctrine of equivalents be relied upon to determine the fair scope of these claims in connection with any other person's product which fall outside the literal wording of these claims, but which in reality do not materially depart from this invention. Without further analysis, the foregoing will so fully reveal the gist of the present invention that others can, by applying current knowledge, readily adapt it for various applications without omitting features that, from the standpoint of prior art, fairly constitute essential characteristics of the generic or specific aspects of this invention.
BRIEF LIST OF REFERENCE NUMBERS USED IN THE DRAWINGS
- 10 umbrella pole assembly
- 11 X-shaped brace
- 12 main pole
- 13 lower, auger portion
- 14 auger assembly
- 15 upper, drill bit portion
- 16 drill attachment member
- 17 solid pole filler
- 18 friction/compression lever
- 19 rivets
- 20 lower end of auger
- 21 upper, drill bit end
- 22 lower end of main pole
- 23 lever foot
- 30 cordless screwdriver tool
- 31 drill chuck on cordless drill
- 32 lever band
- 34 lower, cutting auger section
- 35 upper, anchoring auger section
- 36 safety tip
- 37 ground
- 38 upper umbrella pole
- 39 open end of upper pole
- 40 umbrella canopy
- 41 lever pivot joint
- 42 umbrella
- 43 central shaft at end of pole
- 44 upper end of lower auger section
- 45 safety tip indentations
- 46 safety tip lips
- 47 lower auger blades
- 48 upper auger blades
- 49 end groove
Claims
1. An umbrella pole assembly for inserting and holding an attachable beach umbrella in malleable ground, the pole assembly comprising:
- (a) an auger assembly on a first, lower, auger end of the pole assembly;
- (b) a cylindrical main pole extending from the auger assembly; and
- (c) a drill attachment member connected to the main pole at an opposite, upper, drill bit end of the pole assembly, the drill attachment member being detachably attachable to a rotatable chuck of a separate, portable, handheld tool for rotating the auger assembly; wherein the pole assembly does not comprise a motor.
2. The pole assembly according to claim 1, wherein the auger assembly comprises a lower, cutting auger section attached to an upper, anchoring auger section of the auger assembly, the upper, anchoring auger section being attached to the main pole.
3. The pole assembly according to claim 2, wherein the auger assembly further comprises a removable safety tip at a lower end of the lower, cutting auger section.
4. The pole assembly according to claim 2, wherein the portable tool is a cordless, battery-operated screwdriver, and the auger assembly is rotatable in a clockwise direction and a counterclockwise direction.
5. The pole assembly according to claim 3, wherein the upper, drill bit end of the pole assembly is detachably connectable to an open end of an upper umbrella pole, the upper umbrella pole being connected to a collapsible umbrella canopy.
6. The pole assembly according to claim 5, wherein the portable tool is a handheld, motor-driven drill.
7. The pole assembly according to claim 2, further comprising an X-shaped brace and solid pole filler material incorporated into the main pole of the pole assembly.
8. The pole assembly according to claim 2, wherein the main pole is in a lower, auger portion of the pole assembly, and the drill attachment member is in an upper, drill bit portion of the pole assembly at the opposite, upper end of the pole assembly, the drill attachment member being removable.
9. The pole assembly according to claim 2, wherein the upper, anchoring auger section comprises a central shaft.
10. The pole assembly according to claim 9, wherein an upper end of the lower, cutting auger section extends from the lower end of the upper, anchoring auger section; and the lower, cutting auger section does not comprise a central shaft.
11. The pole assembly according to claim 2, wherein an upper end of the lower, cutting auger section is attached to the lower end of the upper, anchoring auger section off-center.
12. The pole assembly according to claim 10, wherein the auger assembly further comprises a removable safety tip that snaps onto the lower end of the lower, cutting section.
13. The pole assembly according to claim 10, wherein a slope of a plurality of blades of the upper and lower auger sections towards the outside of the blades is greater than a slope of the auger blades at the inside of the blades.
14. The pole assembly according to claim 3, wherein the lower end of the lower, cutting auger section comprises safety tip indentations into which correspondingly shaped lips of the safety tip fit.
15. The pole assembly according to claim 2, wherein the pole assembly does not comprise a handle.
16. The pole assembly according to claim 1, wherein the length of the upper, anchoring auger section is about equal to the length of the lower, cutting auger section, and the lower cutting auger section blades are spaced apart and are each angled between about 40 and about 50 degrees.
17. The pole assembly according to claim 2, wherein an average diameter of a plurality of upper auger blades in the upper, anchoring auger section is substantially larger than an average diameter of a plurality of lower auger blades in the lower, cutting auger section.
18. The pole assembly according to claim 1, further comprising a friction/compression lever on the upper drill bit end of the main pole.
19. The pole assembly according to claim 3, wherein the main pole is substantially made of metal, the auger assembly is substantially made of plastic, and the safety tip is a cap substantially made of metal.
Type: Application
Filed: Oct 30, 2006
Publication Date: May 1, 2008
Inventor: Albert E. McKnight (Little River, SC)
Application Number: 11/589,427
International Classification: A45B 3/00 (20060101);