US20070011803A1 - Manually driven bathtub lift - Google Patents
Manually driven bathtub lift Download PDFInfo
- Publication number
- US20070011803A1 US20070011803A1 US11/401,374 US40137406A US2007011803A1 US 20070011803 A1 US20070011803 A1 US 20070011803A1 US 40137406 A US40137406 A US 40137406A US 2007011803 A1 US2007011803 A1 US 2007011803A1
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- US
- United States
- Prior art keywords
- trolley
- seat
- track
- supported
- base frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
- A61G7/10—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
- A61G7/1001—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto specially adapted for specific applications
- A61G7/1003—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto specially adapted for specific applications mounted on or in combination with a bath-tub
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
- A61G7/10—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
- A61G7/1013—Lifting of patients by
- A61G7/1019—Vertical extending columns or mechanisms
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
- A61G7/10—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
- A61G7/1049—Attachment, suspending or supporting means for patients
- A61G7/1059—Seats
Definitions
- the present invention relates to a mechanical bathtub lift seat apparatus for assisting persons of limited mobility, such as the elderly or disabled, transfer into or out of a typical bathtub.
- One lowering system involves a band spanning from a wall-mounted dispenser on one side of a tub to the wall of the tub opposite the dispenser.
- An electric motor within the dispenser slowly dispenses more length of the band in order to lower a user seated on the band into the tub. Once bathing is completed, the motor is run in an opposite direction to retract the band into the dispenser, thereby lifting the user back up to the top of the tub.
- the primary problem associated with the existing bathtub lift devices is the high cost involved.
- Many elderly or disabled persons live on limited income and cannot justify the high cost of the existing bathtub lift systems despite the comfort and safety levels they offer.
- a bathtub lift apparatus that can be produced and sold at a reasonable cost.
- a bathtub lift apparatus for assisting a person into and out of a bathtub comprising:
- the base frame for being received in the tub, the base frame including a track supported on the frame having a lower end and an upper end;
- a seat for supporting the person thereon, the seat being supported on the trolley device for movement with the trolley between a lower position at the lower end of the track and an upper position at the upper end of the track;
- the base frame comprises two laterally spaced parallel walls, wherein the drive member and elongate driven member are located between said walls.
- the track comprises two laterally spaced track members, each having an upper and lower surface defining an elongate channel therebetween for receiving the trolley.
- each track member may comprise a rail while the lower surface of each track member comprises the base frame.
- the elongate driven member is flexible.
- the elongate driven member is guided by idler members supported on the base frame.
- a locking mechanism for selectively preventing motion of the seat relative to the base frame.
- FIG. 7 is a cross sectional view of the bathtub lift with the seat in the raised position as taken across line VII-VII of FIG. 6 .
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- Health & Medical Sciences (AREA)
- Nursing (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Devices For Medical Bathing And Washing (AREA)
Abstract
A manually driven bathtub lift for assisting persons of limited strength or mobility into or out of a typical bathtub without the high costs associated with pneumatic, hydraulic or electric lift devices. A seat is attached to a wheeled trolley arranged for movement up an inclined track mounted on a base frame. A chain is disposed about a drive sprocket and a set of guide pulleys and attached to opposite ends of the trolley. The set of pulleys includes an idler that is biased to retain tension in the chain. The drive sprocket is driven by the rotation of a driver wheel supported on the same shaft as the sprocket. Rotation of the sprocket drives the chain which in turn moves the trolley and attached seat. The driver wheel has handles circumferentially spaced around it and is of large enough size that it can be reached and operated from the seat. The lift is light to allow for easily installation and removal and does not require significant strength to operate.
Description
- The present invention relates to a mechanical bathtub lift seat apparatus for assisting persons of limited mobility, such as the elderly or disabled, transfer into or out of a typical bathtub.
- Persons having permanently limited mobility or strength to due to age or disability may have difficulty performing certain typical daily tasks. Entry to or exit from a bathtub is an example of such a task, as it requires transition between a standing position outside the tub and a seated position upon a very low surface within the tub, including climbing over the side wall.
- As a result, there are a number of existing products aimed at assisting a user enter and exit the tub by easing the aforementioned transition. These products include inflatable chairs positioned within a bathtub for lowering and raising the user to and from the bottom of the tub in a constantly seated position. Other seat assemblies can be positioned within a tub for the same purpose, but are driven by water actuated cylinders or electric motors. Some of these assemblies feature rotating seats so that the user can initially sit with his/her legs outside the tub and then rotate their legs over the tub wall before being lowered, eliminating the step of unassisted entry to the tub altogether. Other devices, typically driven by electric motors, are capable of actually transferring the user from a seated position entirely outside the walls of the tub to a seated position within. One lowering system involves a band spanning from a wall-mounted dispenser on one side of a tub to the wall of the tub opposite the dispenser. An electric motor within the dispenser slowly dispenses more length of the band in order to lower a user seated on the band into the tub. Once bathing is completed, the motor is run in an opposite direction to retract the band into the dispenser, thereby lifting the user back up to the top of the tub.
- The primary problem associated with the existing bathtub lift devices is the high cost involved. The need for components such as air compressors, seals and adaptors for water driven devices, electric motors and control systems, coupled with possible installation costs, keeps many of these products financially out of reach for many of those in need of the assistance that would be provided. Many elderly or disabled persons live on limited income and cannot justify the high cost of the existing bathtub lift systems despite the comfort and safety levels they offer. As a result, there is a need for a bathtub lift apparatus that can be produced and sold at a reasonable cost.
- According to one aspect of the present invention there is provided a bathtub lift apparatus for assisting a person into and out of a bathtub comprising:
- a base frame for being received in the tub, the base frame including a track supported on the frame having a lower end and an upper end;
- a trolley supported for movement along the track;
- a seat for supporting the person thereon, the seat being supported on the trolley device for movement with the trolley between a lower position at the lower end of the track and an upper position at the upper end of the track;
- a rotatable drive member supported for rotation on the frame;
- an elongate driven member engaged about the drive member and connected to the trolley for displacement of said trolley as the drive member is rotated; and
- a driver device for rotating the drive member.
- Preferably the base frame comprises two laterally spaced parallel walls, wherein the drive member and elongate driven member are located between said walls.
- Preferably the track comprises two laterally spaced track members, each having an upper and lower surface defining an elongate channel therebetween for receiving the trolley.
- Each of the upper and lower surfaces of the track members may comprise a rail.
- Alternatively, the upper surface of each track member may comprise a rail while the lower surface of each track member comprises the base frame.
- Preferably there is provided roller members supported on each side of the trolley supported for movement along the track.
- Preferably the roller members are supported in pairs on axles mounted to the trolley.
- Preferably the track is non-linear between the upper and lower ends thereof.
- The seat may be pivotally supported on the trolley for pivotal motion relative thereto.
- In this arrangement, preferably there is provided:
- a pivotal mounting mechanism for pivotally supporting the seat on the trolley for pivotal motion between the lower position where the seat is generally horizontal and the trolley is inclined along the track and a lifting position where the seat and trolley are both inclined along the track and generally parallel to each other; and
- an abutment member mounted on the seat that abuts with the trolley to prevent the seat from pivoting passed the lifting position where the seat and trolley are generally parallel.
- Preferably the elongate driven member is flexible.
- The elongate driven member may be endless.
- Preferably the elongate driven member is guided by idler members supported on the base frame.
- Preferably one of the idler members is floatingly supported on the base frame and biased in order to maintain tension in the elongate driven member.
- Preferably the idler members comprise pulleys.
- Preferably the elongate driven member comprises a chain and the driver member comprises a sprocket for engaging the chain.
- Preferably the driver device comprises a rotational member having a series of handles circumferentially spaced therearound.
- In this arrangement, preferably the handles comprise openings in the rotational member.
- Alternatively, the driver device may comprise a hand crank mechanism for rotating the drive member.
- Preferably the driver device is accessible by the person supported in the seat.
- Preferably there is provided a locking mechanism for selectively preventing motion of the seat relative to the base frame.
- Preferably the locking mechanism is coupled between the driver device and the base frame.
- Preferably the locking mechanism comprises:
- an opening in the driver device;
- a corresponding opening in the base frame;
- a pin for passing through the opening in the driver device into the opening in the frame, thereby blocking motion of said driver device, and hence the driver member, elongate driven member, trolley and seat, relative to said frame.
- Preferably the base frame and the driver device comprise aluminum.
- The present invention can be made and sold at substantially lower costs than existing bathtub lifts as a result of its simple mechanical structure. Assembly is simple and affordable, as the drive system not require any complex, costly or custom components and the base frame is easy to fabricate. The apparatus is hand driven and therefore does not require the use of an external power source, such as an electric motor or air compressor and corresponding control mechanism. Furthermore, the simplicity of the apparatus ensures that any maintenance will be minimal and affordable.
- The driver device is reachable from the seat of the lift and therefore may be used by a bather without outside assistance. The driver device is of substantial size such that the amount of torque needed to lift the bather supported on the seat can be achieved with relatively little force. As a result, the bather does not require a lot of strength to use the apparatus and is therefore less likely to require assistance. Using a material of relatively high strength to weight ratio such as aluminum to construct the frame and driver device, the weight of the apparatus is kept to a minimum so that the lift can be easily lowered into and lifted out of a typical bathtub. This is ideal for the cases where more than one person uses the tub on a regular basis and the lift is not always needed. There is no need for professional installation, which helps keep down the overall cost of the lift apparatus.
- In the accompanying drawings, which illustrate an exemplary embodiment of the present invention:
-
FIG. 1 is a side elevational view of the bathtub lift with the seat in the lowered position. -
FIG. 2 is a side elevational view of the bathtub lift with the seat in the raised position. -
FIG. 3 is a rear elevational view of the bathtub lift with the seat in the lowered position. -
FIG. 4 is a rear elevational view of the bathtub lift with the seat in the raised position. -
FIG. 5 is a top plan view of the bathtub lift with the seat in the lowered position. -
FIG. 6 is a top plan view of the bathtub lift with the seat in the raised position. -
FIG. 7 is a cross sectional view of the bathtub lift with the seat in the raised position as taken across line VII-VII ofFIG. 6 . - The following description outlines the details of a bathtub lift for assisting persons of limited mobility, such as the elderly or disabled, transfer into or out of a typical bathtub. One embodiment of the present invention is shown from the side in
FIGS. 1 and 2 . The bathtub lift apparatus 1 features abase frame 10 for supporting the apparatus within the bathtub (not shown), aseat 20 for supporting the bather and adriver device 40 for controlling motion of theseat 20. The lift functions in such a manner as to move theseat 20 between a lower position as seen inFIG. 1 and a raised or upper position as seen inFIG. 2 . Theseat 20 has abackrest portion 21 and abottom portion 22 connected by anangled portion 23. The user can sit upon thebottom portion 22 in the raised position from outside the tub, rotate his or her body in order to dispose each leg on an opposite side of the apparatus and then descend gradually to the lowered position within the tub. Once finished bathing, the user can then use thecontrol device 40 to ascend back to the raised position and then rotate his or her legs over the tub wall in order to exit the bathtub. - The movement of the seat is achieved through rolling motion of a
trolley 30 attached to theseat 20. Thebase frame 10 includes a pair of spaced apart parallelvertical walls 11 each having anupper edge 12 defining generally horizontal lower 17 and upper 18 portions and aninclined portion 16. Thewalls 11 are connected and spaced apart at the end of theupper portion 16 by ahorizontal base member 13 at the bottom of theframe 10 andvertical end wall 15 disposed above the base member as shown inFIGS. 3 and 4 . Atrack assembly 50 is supported on eachwall 11. The track includes arail 51 which is held above thebase frame 10 by rail supports 52 that extend generally perpendicular to theupper edge 12 of thewalls 11. Therail 51 and supports 52 are connected bybolts 53 in order to form achannel 54 defined by a space between therail 51 and theupper edge 12 of thewall 11. Thischannel 54 defines the path along which thetrolley 30 can move. The trolley includeswheels 32 disposed on each side of thetrolley body 31 for rolling motion within thechannel 54. The track extends along the inclined 16 and upper 18 portions of theupper edge 12 so that theseat 12 attached to the rear end of thetrolley 30 can move between the lower position abovelower portion 17 to the raised position above theinclined portion 16. Theinclined portion 16 is curved in order to provide a smooth transition of thetrolley 30 to and from the upper 18 and lower 17 portions. - Components of the drive system for the trolley are disposed between the
walls 11 of thebase frame 10 and are illustrated inFIG. 7 . Achain 82 is positioned around adrive sprocket 45 and guidepulleys trolley 30 at opposite ends. A first end of thechain 82 is attaches to thetrolley 31 by means ofattachment member 34 bolted to thechain 82 and thetrolley body 30 at an end opposite theseat 20. From this first end, the chain extends around thesprocket 45 down to a floatingidler pulley 91 which is mounted on alever 92 for pivotal movement about an axis defined by ashaft 93 supported at each end by awall 11 of thebase frame 10. This arrangement allows movement of theidler pulley 91 in order to retain tension in thechain 82 as thetrolley 30 moves along thetrack 50. The chain extends from the idler 91 over aguide pulley 94 supported between thewalls 11 by ashaft 95. The chain further extends from theguide pulley 94 around athird pulley 96 supported on ashaft 97 near the end of thelower portion 17 opposite theinclined portion 16. Thispulley 96 reverses the chain direction back toward thedrive sprocket 45 for connection to a secondtrolley attachment member 33 at an end of thetrolley 30 nearest theseat 20. Similar to the first attachment member, thesecond attachment member 33 is bolted to thechain 82 and thetrolley body 31. With theseat 20 in the lowered position as shown inFIG. 1 , rotation of thesprocket 45 in a clockwise direction drives thechain 82 in a manner that pulls thetrolley 30 along thetrack 50 up theinclined portion 16 to theupper portion 18, moving theseat 20 toward the upper position shown inFIG. 2 . Theshafts pulleys lower portion 17 further are connected to awall 11 of thebase frame 10 at either so that they not only support the pulleys, but also keep the walls spaced apart at that end of the apparatus. - The rotation of the
drive sprocket 45 is achieved by means of thecontrol device 40. Thecontrol device 40 includes adrive wheel 49 having a series ofhandles 41 formed by holes circumferentially spaced around the wheel. As seen inFIGS. 3 and 4 , the drive wheel is attached to arotatable member 46 by means ofbolts 43. The rotatable member is fixed on thesame shaft 45 as thedrive sprocket 81. Theshaft 45 extends transversely through aligned holes in thevertical walls 11 of thebase frame 10 near theirupper edges 12 at theupper portion 18. The shaft is free to rotate with respect to theframe 10, but lateral movement along its axis is prevented by the combination of apin 48 and blockingplate 47 as shown inFIGS. 3-6 . The blockingplates 47 are supported on theshaft 45 just outside eachvertical wall 11 and thepins 48 pass through openings in the shaft just outside the plates. Lateral movement of theshaft 45 with respect to theframe 10 is prevented by the abutment of eitherpin 48 with therespective blocking plate 47. Rotation of thedrive wheel 40 and attachedrotatable member 46 causes thesprocket 81 to turn and drive thechain 82, resulting in motion of thetrolley 30 and attachedseat 20. Thewheel 40 is of sufficient size that thehandles 41 are within reaching distance of the user when supported on theseat 20 regardless of the position of thetrolley 30 along thetrack 50. The amount force needed to pull the seated user up theinclined portion 16 is kept reasonably small as the relatively large radius of thedriver wheel 49 ensures a proportionally large resultant torque about the axis of theshaft 45. - The force of gravity on the user when seated in the raised position tends to cause the
trolley 30 and attachedseat 20 to descend down theinclined portion 16 to the lowered position. As a result, a locking mechanism is provided for selectively securing thetrolley 30 in thetrack 50 at theupper portion 18 of thewalls 11 of thebase frame 10, thus locking theseat 20 in the raised position above theinclined portion 16. Ahole 42 in thedriver wheel 49 is positioned in order to align with a corresponding hole 14 in thewall 11 of thebase frame 10 on the same side of the lift apparatus 1 as thewheel 49 when theseat 20 is in the raised position. Apin 70 is passed through the alignedholes 42 and 14 in order to prevent motion of thewheel 49 with respect to thebase frame 10. Since thewheel 49 is attached to therotatable member 46 which is mounted on thesame shaft 45 as the drive sprocket, rotation of any of these components is prevented by thepin 70. Thetrolley 30 andseat 20 cannot move with thepin 70 in place as the cogs of thestationary sprocket 81 prevent motion of thechain 82. - A
pivoting mechanism 60 is provided between thetrolley 30 and theseat 20 to allow pivotal motion of the seat with respect to the trolley as they move along thetrack 50. A pair ofhinges 63 provides the pivoting action between theseat 20 andtrolley 30. Each hinge hasflaps trolley body 31 and theseat 20 respectively. As shown inFIG. 1 , thehinge 63 allows thebottom portion 22 of theseat 20 to take on a nearly horizontal orientation in the lowered position at thelower portion 17 of thewall 11 even though thetrolley 30 is at an angled orientation along theinclined portion 16. As thetrolley 30 is pulled upward along theinclined portion 16 by thechain 82 the hinge will open further such that thebottom portion 22 of theseat 20 will take on an the same orientation as thetrolley 30, in other words parallel to theinclined portion 16. Anabutment member 64 is attached to the underside of thebottom portion 22 of theseat 20 in order to prevent thehinge 63 from opening more than 180 degrees. In the raised position shown inFIGS. 2 and 7 , thehinge 63 opens under the weight of the seat 20 (and user, if seated thereupon) and moves theabutment member 64 into contact with thetrolley body 31. This keeps thebottom portion 22 of the seat in a generally horizontal orientation in which the user can easily get on or off theseat 20 for entering or exiting the tub respectively. - Due to the
handles 41 circumferentially disposed about thedrive wheel 49 the lift is operable by either the bather or an assistant. The bather is lowered into the tub from the raised position shown inFIG. 2 by removing the lockingpin 70 from the alignedholes 42 and 14 in thedrive wheel 49 andwall 11 respectively. The weight of the bather on the seat will tend to move theseat 20 and attachedtrolley 30 down theinclined portion 16, pulling on thechain 82 and causing counter clockwise rotation of thesprocket 81 and the attachedshaft 45. Since thedriver wheel 49 is mounted on thesame shaft 45 by means of therotational member 46, the counter clockwise rotation can be resisted by means of thehandles 41, thereby controlling the speed of descent of the bather towards the lowered position shown inFIG. 1 . In order to exit the tub, theseat 20 is moved upward along theinclined portion 16 from the lowered position by rotating thedriver wheel 49 clockwise by means of thehandles 41. Once theseat 20 has reached the raised position, theholes 41 and 14 of the locking mechanism will be realigned so that the lockingpin 70 can be inserted to lock the seat in the raised position while the bather dismounts the lift apparatus. - The above description outlines a single embodiment of the present invention from which a number of alternate embodiments can be derived by those who are skilled in the art. Alternate styles of frames, seats, trolleys, tracks, drive members, driven members and guide members can be assembled to achieve similar results. One alternate embodiment may employ a rope and winch for lifting and lowering the seat, in which case the rope would only have to extend between the winch and the end of the trolley nearest the upper portion eliminating the need for the guide and tension pulleys. Another alternate embodiment could use a notched belt and pulley combination instead of the chain and sprocket. Other embodiments could feature a trolley arranged to move along a single track member or elongate handles extending outward from the drive wheel transverse to the apparatus. The trolley and seat could also be combined into a single rigid component, eliminating the need for the pivoting mechanism. In this arrangement, the track would not extend to a horizontal upper portion of the frame. The trolley would only move along an inclined section of track and therefore would always be oriented at the same angle with respect to the frame. Without the pivot mechanism, the seat would not move relative to the trolley but would remain fixed at an orientation similar to that of the lowered position of the seat in the preferred embodiment, as shown in
FIG. 1 . As a result, the bottom portion of the seat would remain in a generally horizontal orientation when moving between the lowered and raised positions. - Since various modifications can be made in my invention as herein above described, and many apparently widely different embodiments of same made within the spirit and scope of the claims without department from such spirit and scope, it is intended that all matter contained in the accompanying specification shall be interpreted as illustrative only and not in a limiting sense.
Claims (20)
1. A bathtub lift apparatus for assisting a person into and out of a bathtub comprising:
a base frame for being received in the tub, the base frame including a track supported on the frame having a lower end and an upper end;
a trolley supported for movement along the track;
a seat for supporting the person thereon, the seat being supported on the trolley device for movement with the trolley between a lower position at the lower end of the track and an upper position at the upper end of the track;
a rotatable drive member supported for rotation on the frame;
an elongate driven member engaged about the drive member and connected to the trolley for displacement of said trolley as the drive member is rotated; and
a driver device for rotating the drive member.
2. The apparatus according to claim 1 wherein the base frame comprises two laterally spaced parallel walls, wherein the drive member and elongate driven member are located between said walls.
3. The apparatus according to claim 1 wherein the track comprises two laterally spaced track members, each having an upper and lower surface defining an elongate channel therebetween for receiving the trolley.
4. The apparatus according to claim 3 wherein each of the upper and lower surfaces of the track members comprises a rail.
5. The apparatus according to claim 3 wherein the upper surface of each track member comprises a rail and the lower surface of each track member comprises the base frame.
6. The apparatus according to claim 1 wherein there are provided roller members supported on each side of the trolley supported for movement along the track.
7. The apparatus according to claim 6 wherein the roller members are supported in pairs on axles mounted to the trolley.
8. The apparatus according to claim 1 wherein the track is non-linear between the upper and lower ends thereof.
9. The apparatus according to claim 8 wherein the seat is pivotally supported on the trolley for pivotal motion relative thereto.
10. The apparatus according to claim 9 wherein there is provided:
a pivotal mounting mechanism for pivotally supporting the seat on the trolley for pivotal motion between the lower position where the seat is generally horizontal and the trolley is inclined along the track and a lifting position where the seat and trolley are both inclined along the track and generally parallel to each other; and
an abutment member mounted on the seat that abuts with the trolley to prevent the seat from pivoting passed the lifting position where the seat and trolley are generally parallel.
11. The apparatus according to claim 1 wherein the elongate driven member is an endless and flexible member.
12. The apparatus according to claim 1 wherein the elongate driven member is guided by idler members supported on the base frame.
13. The apparatus according to claim 12 wherein one of the idler members is floatingly supported on the base frame and biased in order to maintain tension in the elongate driven member.
14. The apparatus according to claim 1 wherein the elongate driven member comprises a chain and the driver member comprises a sprocket for engaging the chain.
15. The apparatus according to claim 1 wherein the driver device comprises a hand crank mechanism for rotating the drive member.
16. The apparatus according to claim 1 wherein the driver device comprises a rotational member having a series of handles circumferentially spaced therearound.
17. The apparatus according to claim 16 wherein the handles comprise openings in the rotational member.
18. The apparatus according to claim 1 wherein the driver device is accessible by the person supported in the seat.
19. The apparatus according to claim 1 wherein there is provided a locking mechanism for selectively preventing motion of the seat relative to the base frame.
20. The apparatus according to claim 19 wherein the locking mechanism is coupled between the driver device and the base frame.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA2,512,220 | 2005-07-15 | ||
CA002512220A CA2512220A1 (en) | 2005-07-15 | 2005-07-15 | Manually driven bathtub lift |
Publications (1)
Publication Number | Publication Date |
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US20070011803A1 true US20070011803A1 (en) | 2007-01-18 |
Family
ID=37660269
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US11/401,374 Abandoned US20070011803A1 (en) | 2005-07-15 | 2006-04-11 | Manually driven bathtub lift |
Country Status (2)
Country | Link |
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US (1) | US20070011803A1 (en) |
CA (1) | CA2512220A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010096636A1 (en) * | 2009-02-20 | 2010-08-26 | Victor Robert J | Portable, personal lifting device |
US20110283449A1 (en) * | 2010-05-18 | 2011-11-24 | Leathon Kent Baxley | Bathtub access system |
USD842972S1 (en) | 2017-01-12 | 2019-03-12 | Kohler Co. | Walk in bath |
US10463276B2 (en) | 2009-09-01 | 2019-11-05 | Massachusetts Institute Of Technology | Nonlinear system identification techniques and devices for discovering dynamic and static tissue properties |
US10881251B2 (en) | 2017-01-12 | 2021-01-05 | Kohler Co. | Walk in bath |
CN113304010A (en) * | 2021-05-11 | 2021-08-27 | 李亚伟 | Conveniently-assembled external anti-deformation structure for exoskeleton robot and exoskeleton robot |
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US5193650A (en) * | 1992-05-06 | 1993-03-16 | Kent Jr George W | Portable stair lift |
US5365618A (en) * | 1994-03-22 | 1994-11-22 | Lloyd Gilbert | Support system for bather's lift |
US6003168A (en) * | 1994-10-06 | 1999-12-21 | Steadman; William David | Person movement apparatus |
-
2005
- 2005-07-15 CA CA002512220A patent/CA2512220A1/en not_active Abandoned
-
2006
- 2006-04-11 US US11/401,374 patent/US20070011803A1/en not_active Abandoned
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US1639284A (en) * | 1924-11-01 | 1927-08-16 | Bragg Kliesrath Corp | Steering mechanism for automotive vehicles |
US2187283A (en) * | 1937-10-25 | 1940-01-16 | Joseph A Scheutz | Elevator apparatus |
US5054621A (en) * | 1989-12-18 | 1991-10-08 | Hybrid Systems, Inc. | Document sorting apparatus |
US5193650A (en) * | 1992-05-06 | 1993-03-16 | Kent Jr George W | Portable stair lift |
US5365618A (en) * | 1994-03-22 | 1994-11-22 | Lloyd Gilbert | Support system for bather's lift |
US6003168A (en) * | 1994-10-06 | 1999-12-21 | Steadman; William David | Person movement apparatus |
Cited By (8)
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WO2010096636A1 (en) * | 2009-02-20 | 2010-08-26 | Victor Robert J | Portable, personal lifting device |
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US10463276B2 (en) | 2009-09-01 | 2019-11-05 | Massachusetts Institute Of Technology | Nonlinear system identification techniques and devices for discovering dynamic and static tissue properties |
US20110283449A1 (en) * | 2010-05-18 | 2011-11-24 | Leathon Kent Baxley | Bathtub access system |
USD842972S1 (en) | 2017-01-12 | 2019-03-12 | Kohler Co. | Walk in bath |
US10881251B2 (en) | 2017-01-12 | 2021-01-05 | Kohler Co. | Walk in bath |
USD916253S1 (en) | 2017-01-12 | 2021-04-13 | Kohler Co | Walk in bath |
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