Spa cover lift
An apparatus for lifting a spa cover from a spa. The apparatus has a first bearing and a second bearing. The apparatus includes a first axis extending generally vertically through the first bearing, the first axis extending not more than about the thickness of the spa cover from an exterior edge of the spa. The second bearing may be positioned generally above the spa cover and positioned generally inwardly from an exterior edge of the spa by at least about the thickness of the spa cover.
The spa is known for its ability to relax muscles and assist in various types of medical therapy and rehabilitation. The spa often holds heated water, which may be circulated in the spa with various pumps and the like. To retain the heat in the water, and reduce operation heating costs, a spa cover may be placed over the spa. The spa cover frequently has insulating properties and can be thick. This spa cover thickness can increase the weight and bulk of the spa cover and present challenges in removing the cover from the spa and replacing the spa cover back onto the spa.
Because persons who use the spa may have physical limitations, removing the spa cover from the spa and replacing the spa cover back onto the spa presents significant limitations. Current means for handling the cover can damage the cover during operation. There remains a long-felt need for a suitable means of removing the spa cover from the spa and replacing the cover back onto the spa.
BRIEF DESCRIPTION OF THE DRAWINGS
This application claims the benefit of U.S. Provisional Application No. 60/601,154, filed Aug. 12, 2004.
Preliminarily, it should be noted that certain terms used herein, such as for example above, below, left and right, are used to facilitate the description of the invention. Unless otherwise specified or made apparent by the context of the discussion, such terms and other directional terms should be interpreted with reference to the figure(s) under discussion. Such terms are not intended as a limitation on the position in which the invention or components may be used. Indeed, it is contemplated that the components of the invention may be easily positioned in any desired orientation for use. Likewise, numerical terms such as for example “first”, and “second” are not intended as a limitation or to imply a sequence, unless otherwise specified or made apparent by the context of the discussion. The term “operatively connected” is understood to include a linking together of the portions under consideration and may include a physical engagement and/or a functional or operational connection.
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The illustrated spa cover lift 20 includes a vertical support 60 and a horizontal support 64 secured to a top portion 68 of the vertical support 60. The vertical support 60 may be a pole, as illustrated, or may be a wall or any other suitable structure. The vertical support 60 and the horizontal support 64 are positioned generally about perpendicular to each other. A suspension line 72 is also provided. The suspension line 72 may be any suitable cable, rope, chain, or the like. The suspension line 72 is secured to the second end 38 of the spa cover 24 and slidably connected to the first end 34 of the spa cover 24. The suspension line 72 is shown slidably connected to the first loop 40. The suspension line 72 is shown secured to the second loop 44.
The illustrated spa cover lift 20 further includes a first pulley 76, a second pulley 80, a motor 84, and a power source 88. The term “pulley” may be understood to include any suitable sheave or small wheel with a grooved rim and with or without the block in which it runs used singly with a line, suspension line, rope or chain to change the direction and/or point of application of a pulling force and in various combinations to increase the applied force especially for lifting one or more weights. The term “pulley” may also be understood to include a wheel used to transmit power by means of a band, belt, cord, rope, line, suspension line, chain or the like passing over it. The power source 88 may be a battery and/or other source of AC/DC electricity. The motor 84 may be replaced or complimented by a third pulley, which in turn could be operatively connected to a suitable motor.
The first pulley 76, the second pulley 80, and the motor 84 are bearings and are operatively connected. It will be observed that a number of other components are likewise operatively connected. The term “bearing” may be understood to include structures or features which support a weight or strain. The term “motor” may be understood to include structures or features which impart motion. The term “motor” may also be understood to include one or more of a wide variety of machines that convert energy into motion and/or which can be used as a power source. The first pulley 76 and the second pulley 80 are shown positioned generally above the spa cover 24.
The first pulley 76 and the second pulley 80 are shown positioned generally above the spa 28 by at least about one half the length of the spa cover 24. The one half the length of the illustrated spa cover 24 is perhaps best seen in
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The second pulley 80 is shown positioned generally above the spa cover 24 and positioned generally inwardly from the exterior edge 96 of the spa 28 by at least about the thickness T of the spa cover 24. By inwardly, it will be observed that the second pulley 80 is positioned generally closer to the vertical support 60 than to the exterior edge 96 of the spa 28. An axis B-B is shown to extend generally vertically through the second pulley 80. The illustrated distance between the axis B-B and the illustrated exterior edge 96 of the spa 28 is greater than the thickness T of the spa cover 24. The illustrated distance between the first pulley 76 and the second pulley 80 is about at least the thickness T of the spa cover 24. The distances may be generally measured from about the middle of the second pulley 80.
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A method of removing the spa cover 24 from a spa 28 may be employed according to the present invention. The method includes providing a bearing positioned generally above the spa cover 28 and generally inwardly from an exterior edge 96 of the spa 28 by at least about the thickness of the spa cover 28 and lifting the spa cover 24. As it can be seen from
Alternate embodiments are contemplated. Instead of the motor, a hand crank, manual crank or winch may be employed to increase or decrease tension on the suspension line 72. The winch may be any of various machines or instruments for hauling or pulling. The winch or motor are may be a machine on which to coil a rope, cable, chain, or the like for hauling or hoisting. The disclosures of the following U.S. patents are incorporated by reference as if fully rewritten: Downer U.S. Pat. No. 4,019,212; Nohl et al. U.S. Pat. No. 4,598,506; Franklin U.S. Pat. No. 5,836,330; Moore U.S. Pat. No. 4,487,212; Osborne U.S. Pat. No. 5,269,332; Genova U.S. Pat. No. 5,996,137; Girerd U.S. Pat. No. 6,079,059; Perry U.S. Pat. No. 6,381,766; Tedrick U.S. Pat. No. 6,393,630; McNamara U.S. Pat. No. 6,421,962; Fillisetti 2001/0032972.
The invention may be adapted to fit a wide variety of suitable covers and/or spas. It will be appreciated that the components of the invention may be easily modified as needed to accommodate varying sizes and shapes of covers or spas, including commonly used covers and spas.
The principle and mode of operation of this invention have been described in its preferred embodiments. However, it should be noted that this invention may be practiced otherwise than as specifically illustrated and described without departing from its scope.
Claims
1. An apparatus for lifting a spa cover from a spa comprising:
- a first bearing and a second bearing;
- a first axis extending generally vertically through the first bearing, the first axis extending not more than about the thickness of the spa cover from an exterior edge of the spa; and
- the second bearing being positioned generally above the spa cover and positioned generally inwardly from an exterior edge of the spa by at least about the thickness of the spa cover.
2. The apparatus of claim 1 wherein the second bearing is positioned above the spa by at least about one half the length of the spa cover.
3. The apparatus of claim 1 wherein the first bearing is a pulley.
4. The apparatus of claim 1 wherein the second bearing is a pulley.
5. The apparatus of claim 1 further comprising a suspension line slidably connected to a first end of the spa cover and secured to a second end of the spa cover.
6. The apparatus of claim 1 further comprising a support wherein the first bearing and the second bearing are secured to the support.
7. The apparatus of claim 1 wherein the second bearing is spaced apart from the first bearing by a distance of at least about a thickness of the spa cover.
8. The apparatus of claim 7 wherein the second bearing is positioned above the spa by at least about one half the length of the spa cover.
9. The apparatus of claim 7 further comprising a suspension line slidably connected to a first end of the spa cover and secured to a second end of the spa cover.
10. The apparatus of claim 7 wherein the first bearing and the second bearing are pulleys.
11. A method of removing a spa cover from a spa comprising:
- providing a second bearing positioned generally above the spa cover and generally inwardly from an exterior edge of the spa by at least about the thickness of the spa cover; and
- lifting the spa cover; and
- placing the spa cover generally between the exterior edge of the spa and a vertical support.
12. The method of claim 11 further comprising providing a first bearing operatively connected to the second bearing.
13. The method of claim 12 wherein the second bearing is spaced apart from the first bearing by a distance of at least about a thickness of the spa cover.
14. The method of claim 11 further comprising providing a suspension line slidably connected to a first end of the spa cover and secured to a second end of the spa cover.
15. An apparatus for lifting a spa cover from a spa comprising:
- a first bearing;
- a second bearing spaced apart from the first bearing by a distance of at least about a thickness of the spa cover wherein a generally vertical axis through the second bearing is generally closer to a vertical support that supports the second bearing than to a generally vertical axis through the first bearing.
16. The apparatus of claim 15 wherein the second bearing is a pulley.
17. The apparatus of claim 15 wherein the second bearing is a motor.
18. The apparatus of claim 15 wherein the second bearing is a pulling means.
19. The apparatus of claim 15 further comprising a vertical support separated from the exterior edge of the spa by a distance of at least about the thickness of the cover.
20. The apparatus of claim 19 wherein the vertical support is a wall.
Type: Application
Filed: Aug 10, 2005
Publication Date: Feb 15, 2007
Inventor: Doug Nickles (Oberlin, OH)
Application Number: 11/200,553
International Classification: E04H 4/00 (20060101);