FIELD OF THE INVENTION
The present invention relates generally to swimming pool accessories. More particularly, it relates to a lift for use by a person to access a swimming pool from a pool deck.
BACKGROUND OF THE INVENTION
In the field of swimming pool accessories, various types of stationary and portable chairs and lifts are used to provide access to the pool. In particular, such chairs may be used by disabled or elderly people for whom pool access is difficult. Such individuals may access the pool alone or with the assistance of one or more other individuals who are located either in the pool or on the pool deck, or both. Conventional pool lifts have various shortcomings, namely that they are difficult for an individual to access and are difficult to control by both the user and any assistants.
SUMMARY OF THE INVENTION
In one exemplary embodiment of the present invention, a lift is provided. The lift includes a base and a mast extending from the base. An arm is pivotally connected to the mast. A seat assembly is connected to the arm. An overhead support positioned above the seat assembly. First and second actuators control movement of the lift. The first actuator moves the arm about the pivotal connection between the arm and the mast, thereby moving the seat assembly between a raised position and a lowered position. A second actuator rotates the seat assembly relative to the base.
In another exemplary embodiment of the present invention, a lift is provided. The lift includes a seat support having first and second ends. A seat is attached to the seat support proximate the first end. An overhead support attached to the seat support proximate the second end. An actuator moves the seat relative to a pool deck on which the lift is positioned.
In still another exemplary embodiment, an overhead support assembly for attachment to a swimming pool lift is provided. The assembly includes a rigid, elongated member having first and second ends. The first end detachably connects to an upper portion of a seat support of a swimming pool lift. The assembly further includes an overhead bar and means for connecting the overhead bar to the elongated member to allow the overhead bar to be positioned above a seat of the lift, within reach of a user positioned in the seat. As the lift moves between raised and lowered positions, the overhead bar remains in substantially equal distance from the seat in both the raised and lowered positions.
In still another exemplary embodiment of the present invention, a transfer system for a swimming pool lift is provided. The transfer system includes a base cart assembly and a seat cart assembly. The base cart assembly includes an axel that defines a stem-receiving portion. A first pair of wheels is connected to opposing ends of the axel. A handle extends from the axel. First and second spaced-apart rigid members connect to the axel and extend outward from the axel. Each of said members defines a recessed portion adapted, respectively, to engage pins on opposing sides of a stem. The seat cart assembly includes a second pair of wheels connected by a raised intermediate member and means for supporting a seat of a lift, said means being connected to the second pair of wheels.
The foregoing and other features, utilities and advantages of the invention will be apparent from the following more particular description of a preferred embodiment of the invention as illustrated in the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
The detailed description will refer to the following drawings, wherein like numerals refer to like elements, and wherein:
FIG. 1 shows a perspective view one exemplary embodiment of a lift in a raised position;
FIG. 2 shows an elevation view of the embodiment of the lift shown in FIG. 1, in a raised position;
FIG. 3 shows a perspective view of the lift in a lowered position;
FIG. 4 shows an elevation view of the lift shown in FIG. 3, in the lowered position;
FIG. 5 shows an assembly view of the embodiment of the lift shown in FIGS. 1-4;
FIG. 6 shows another assembly view of the embodiment of the lift shown in FIG. 5;
FIG. 7 shows an elevation view of the embodiment of the lift shown in FIGS. 1-6 mounted in a pool deck;
FIG. 8 shows an elevation view of the embodiment of the lift shown in FIG. 7, in a lowered position in which the seat assembly is positioned over and lowered into the pool;
FIG. 9 shows a top view of the embodiment of the lift shown in FIG. 7;
FIG. 10 shows a two-part transfer system for transporting the lift; and
FIG. 11 shows a more detailed view of the embodiment of the transfer system shown in FIG. 10, without the lift present.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
FIG. 1 shows a perspective view one exemplary embodiment of a lift 10 in a raised position. In the raised position, the lift 10 may be accessed by a user on the pool deck (not shown). The lift 10 is in a raised position, for example, when a user gets into or out of the lift 10 on the pool deck. The lift 10 includes a base 20 with a mast 30 pivotally connected thereto. The base 20 includes a stem 22 extending from the base 20. In the embodiment of FIG. 1, the lift 10 is a semi-stationary lift that can be removeably positioned in a pool deck by positioning the stem 22 in a suitable anchor (not shown) built into the pool deck, such as those anchors manufactured by Spectrum Products, LLC of Missoula, Mont. In other embodiments, the lift 10 may be stationary in that it may be permanently connected to a pool deck, or may be portable in that it does not attach to the pool deck even in a detachable manner.
First and second arms 60, 62 are pivotally connected at first ends to the mast 30. In the embodiment of FIG. 1, each of the arms 60, 62 is formed from a pair of rigid metal bars connected to opposing sides of the mast 30. A first actuator 70 moves the arms 60, 62 relative to the mast 30. In the embodiment of FIG. 1, the first actuator 70 is connected between the first arm 60 and the mast 30, and includes a motor (not shown) that extends and retracts a cylinder 72 to cause the arm 60 to pivot relative to the mast 30, to thereby raise or lower the lift 10. In the embodiment shown in FIG. 1, the mast 30 also rotates relative to the base 20, for example, to position a user over the pool or over the deck. Movement of the mast 30 about the base 20 is caused by a second actuator (not shown), such as a motor. A power supply 90, such as a battery, provides power to the first 70 and second actuators and is connected to the mast 30 near the upper end.
A seat support 40 is connected to second ends of the first and second arms 60, 62. As the arms 60, 62 move up and down, the seat support 40 likewise moves up and down. The seat support 40 in one embodiment is a hollow, elongated, rigid metal tube. A chair assembly 80 attaches to a lower portion (not shown) of the seat support 40. An upper portion 50 of the seat support 40 is a rigid bar positioned above a person seated in the lift 10. In the embodiment of FIG. 1, the upper portion 50 of the seat support 40 may be grasped by a user of the lift 10 to facilitate access into and out of the lift 10. In the exemplary embodiment of FIG. 1, an overhead bar 52 is suspended from the upper portion by chains 54 that adjust in length to accommodate users of different heights. Other means may be used to connect the overhead bar 52 to the upper portion 50 of the seat support 40, such as rope, cable, rigid bars with preset, adjustable stops, etc. In one embodiment (not shown), the upper portion 50 is a rigid elongated member that detachably connects to the seat support 40 to allow the overhead bar to be selectively used by the user. In another embodiment (not shown), the upper portion 50 detachably connects to the seat support 40 at a plurality of different positions along the seat support 40 such that the upper portion 50 may be used alone, without any additional overhead bar (e.g., 52 in FIG. 1) supported therefrom, and may be adjusted along the length of the seat support 40 to accommodate users of different heights.
A seat assembly 80 connects to the lower portion 42 of the seat support 40. In the exemplary embodiment of FIG. 1, the seat assembly 80 includes a seat 82, a seatbelt 86, a footrest 84 connected to the lower portion 42 of the seat support 40, and a control holder 85. The control holder 85 holds a first corded remote control 100 used by a user seated in the lift 10 to raise or lower the lift 10 and to rotate the mast 30 about the base 20 to position the seat assembly 80 over the pool deck or over the pool. In the embodiment of FIG. 1, the seat assembly 80 further includes an adjustable footrest 84. In one embodiment, the footrest 84 is self-adjusting, in that it pivotally connects to the lower portion (42 in FIG. 2) of the seat support 40 and is permitted to move upward. The footrest 84 moves upward upon contact with a hard surface, such as a pool deck or the bottom of a shallow spa or pool. In one embodiment, the footrest 84 floats in water and pivots upward to meet the user's feet in the water.
The embodiment of FIG. 1 includes a second remote control 110 connected to the base 20 of the lift 10 by a holder 24. Both the first and second remote controls 100, 110 control all functions of the lift 10 in this embodiment. The second remote control 110 allows an assistant on the pool deck or in the water near the lift 10 to control the lift 10 without having to be seated in the seat 82. For example, if the user is in the pool, the user or an assistant can move the lift 10 out of the water and over the pool deck without having to be near the first remote control 100. The remote controls 100, 110 are preferably water-resistant in one embodiment.
In one embodiment, a third control 92 is attached to the mast 30 proximate the power supply 90. In this position, the third control 92 is positioned at approximately waist height of a person, such as the user of the lift 10 or an assistant to the user, standing on the pool deck. The third controller may be permanently affixed to the mast 30 or may be a remote control that is removable from the mast 30 and attached to the lift 10 by a cord, like the first and second remote controls 100, 110 shown in FIG. 1. In other embodiments, one or more of the remote controls 100, 110, 92 may be wireless controls.
In use, a user raises the lift 10 to a raised position over the pool deck, and the user is positioned in the seat 82. Using the first remote control 100 attached to the seat assembly 80 (or another control, e.g., 92, 110), the user or an assistant rotates the seat assembly 80 over the pool. With the seat assembly 80 over the pool, the first control 100 (or another control) is used to lower the seat assembly 80 into the pool. Once in the pool, the user may exit the seat assembly 80. Using the second remote control 110 (or another control) the user or an assistant can raise the lift 10 back to a raised position and rotate the seat assembly 80 away from the pool, if desired. To exit the pool, the user or an assistant again uses a control 100, 110, 92 to position the seat assembly 80 over the pool and to lower the lift 10 into a lowered position. With the lift 10 in the lowered position, the user can access the seat 82 and then the lift 10 can be raised to a raised position and rotated away from the pool to allow the user to exit the seat 82 onto the pool deck.
FIG. 2 shows an elevation view of the embodiment of the lift 10 shown in FIG. 1, in a raised position. As shown in FIG. 2, the lower portion 42 of the seat support 40 passes below the seat assembly 80. Also shown in FIG. 2, the stem 22 includes an upper portion 21 that is positioned above the pool deck (not shown) in use. A pin 26 extends outward from the stem 22 and is used to lift and transport the lift 10. In one embodiment, a second pin (not shown in FIG. 2) is positioned on the opposing side of the pin 26, and both pins 26 are engaged by a lifting system (e.g., 300 in FIG. 10) to lift and move the lift 10.
FIG. 3 shows a perspective view of the lift 10 in a lowered position. The arms 60, 62 extend somewhat downward from the mast 30 in this embodiment of the lift 10, in the lowered position.
FIG. 4 shows an elevation view of the lift 10 shown in FIG. 3, in the lowered position. In use, the stem 22 mounts in an anchor (not shown) positioned in the pool deck. In one embodiment, the stem 22 is an elongated, cylindrical stem having a diameter in the range of 1.3-3.0 inches, and is adapted to be received in a conventional deck anchor. The deck anchor may be a multipurpose anchor, for example, that may also be used to hold starting platforms, ladders, chairs, or other types of pool accessories, and may have an outside diameter of 1.5 or 1.9 inches in one particular embodiment. In the lowered position, the seat assembly 80 is below the base 20 and below the pool deck (not shown) so that the user can exit the lift 10 into the pool.
FIG. 5 shows an assembly view of the embodiment of the lift 10 shown in FIGS. 1-4. In one embodiment, the lift 10 is held together by multiple conventional fasteners, such as the unnumbered bolts, pins, screws, nuts, washers, etc. shown in FIG. 5. A bracket 32 holds the power supply 90 and the control 92 to the mast 30.
FIG. 6 shows another assembly view of the embodiment of the lift 10 shown in FIG. 5.
FIG. 7 shows an elevation view of the embodiment of the lift 10 shown in FIGS. 1-6 mounted in a pool deck 200. The lift 10 is shown in a raised position in FIG. 7, with the seat assembly 80 positioned over the deck 200. The pool 220 is shown to the left of the pool wall 210 that meets the deck 200 in the example of FIG. 7. The stem (22 in FIG. 1) of the lift 10 is received in an anchor 202 positioned in the deck 200.
FIG. 8 shows an elevation view of the embodiment of the lift 10 shown in FIG. 7, in a lowered position in which the seat assembly 80 is positioned over and lowered into the pool 220.
FIG. 9 shows a top view of the embodiment of the lift 10 shown in FIG. 7.
FIG. 10 shows a two-part transfer system 300 for transporting the lift 10. The system 300 includes a seat cart 310 includes wheels 312 and attaches to the lower portion 42 of the seat support 40. The base cart 320 includes wheels 322 and attaches to the base 20 of the lift 10. The base cart 320 includes a handle 324 to move the lift 10 about the wheels 312, 322 of the transfer system 300. The base cart 320 includes a rigid axel 326 that connects between the wheels 322 and one or more rigid members 328 extending outward from the axel 326. The rigid members include recessed portions 329 that receive pins 26 of the base 20 of the lift 10. The axel 326 further defines a stem-receiving portion (not shown) that wraps around the stem 22 of the lift 10.
In use, the base cart 320 is positioned proximate the base 20 of the lift 10 with the lift 10 still positioned in the anchor (e.g., 202 in FIG. 7) of the deck. The recessed portions 329 are aligned with the pins 26 and the handle 324 is in a generally vertical or upright position. The recessed portions 329 engage the pins 202, and the handle 324 is lowered to thereby raise the base 20 of the lift 10 out of the anchor 20. The axel 326 contacts the stem 22 at the stem receiving portion (327 in FIG. 11). In this position, the handle 324 may then be used to wheel the lift 10 around the pool deck.
FIG. 11 shows a more detailed view of the embodiment of the transfer system 300 shown in FIG. 10, without the lift 10 present. In the embodiment of FIG. 11, the base cart 320 is in the disengaged position, as the handle 324 is generally upright and the rigid portions 328 are generally parallel to a ground surface. In this position, the recessed portions 329 are positioned to receive pins (26 in FIG. 10) of the lift 10 positioned on either side of the stem 22 of the base 20. The stem-receiving portion 327 of the axel 326 allows the axel 326 to be positioned generally underneath the base 20, around the stem 22. The seat cart 310 includes first and second rigid members 316 rising from the wheels that connect to a stem 314 at an apex. The stem 314 may be received in the lower portion 42 of the seat support 40 during use.
While the invention has been particularly shown and described with reference to a preferred embodiment thereof, it will be understood by those skilled in the art that various other changes in the form and details may be made without departing from the spirit and scope of the invention.
Patent Grant
7310833
