CA1288902C - Toilet lift device - Google Patents
Toilet lift deviceInfo
- Publication number
- CA1288902C CA1288902C CA000505182A CA505182A CA1288902C CA 1288902 C CA1288902 C CA 1288902C CA 000505182 A CA000505182 A CA 000505182A CA 505182 A CA505182 A CA 505182A CA 1288902 C CA1288902 C CA 1288902C
- Authority
- CA
- Canada
- Prior art keywords
- seat
- relation
- base plate
- guide rods
- carriage
- 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.)
- Expired - Lifetime
Links
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
- A61G7/1007—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 toilet
-
- 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
- A61G7/1073—Parts, details or accessories
- A61G7/1082—Rests specially adapted for
- A61G7/1094—Hand or wrist
-
- 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
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/10—Parts, details or accessories
- A61G5/14—Standing-up or sitting-down aids
Landscapes
- 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)
- Toilet Supplies (AREA)
Abstract
ABSTRACT
A mechanism for raising and lowering disabled per-sons on a toilet seat is provided. The toilet seat is mounted on a carriage which is operated by water-powered cylinders connected to the closet water supply and the pressure is closely controlled. The seat is moved vertically throughout its travel to permit the user to be moved to a position where he or she can carry their own weight and move onto and off the seat under their own power.
A mechanism for raising and lowering disabled per-sons on a toilet seat is provided. The toilet seat is mounted on a carriage which is operated by water-powered cylinders connected to the closet water supply and the pressure is closely controlled. The seat is moved vertically throughout its travel to permit the user to be moved to a position where he or she can carry their own weight and move onto and off the seat under their own power.
Description
The present invention relates to water closet seats as permit disabled persons to use water close-ts with greater facility.
The principal object of the present invention is to raise and lower a disabled person and give such a person a greater degree of freedom than heretofore in using water closets.
BACKGROUND TO THE INVENTION
. _ The prior art relating to the present sub~ect matter is exemplified by the following patents:
United States Patent 4,185,335, January 29, 1980, Alvis, entitled "MOVABLE TOILET SEAT ASSEMBLY";
United States Patent 3,458,872, August 5, 1969, Hellstrom, entitled "WATER CLOSET TILTABLE SEAT":
United States Patent 3,473,174, October 21, 1969, G.E. Cool, entitled "SEAT CONSTRUCTION";
United States Patent 3,594,831, July 27, 1971, Hamilton C. deJong, entitled "COMBINATION TOILET SEAT AND
ELEVATOR THEREFOR";
United States Patent 4,031,576, June 28, 1977, H.C.
Epstein, entitled "I~VALID TOILET AID";
United States Patent 3,619,820, November 16, 1971, T.R. Cain et al, entitled "TOILET SEAT AUXILIA~Y", These prior art patents all provide different mechanisms for moving patients relative to the water closet but in common they have failed to apprecia-te that in assisting the patient to move relative to the water closet it i9 important to move the patient into a position such that he may move from the water closet and in so doing the patient must be moved into a position such that he or she is in the position which provides the most support, ie. when the legs are straight.
SUMMARY OF THE PRESENT INVENTION
In accordance with the present invention the patient is moved relative to a water closet by moving the patient on a seat assembly which comprises:
a pair of spaced apart guide rods;
a seat carriage movable vertically along said guide lZ~
rods to a selected position;
a substantially U~shaped seat member mounted on said seat carriage and movable therewith:
motor means for moving said carriage along said guide rods, and control means for actuating said motor means.
As the patient's backside is moved in this manner the legs are straightened and the patient can slide forward toward the front of the seat until at the position where the legs are straight when he can move off with facility. This movement described gives the patient maximum support. With those mechanisms which have a tilt patient is propelled on to his legs at a point in time where the legs, being bent, are nct as capable of supporting the patient as they are when straightened.
~ further feature of the present invention is the use of the water closet water supply as a source of power.
This makes for a cheap economical power source. The coupl-ing of a pair of cylinders in parallel makes for a smooth reliable operation and the use of water makes the operation less likely t~ wide fluctuations as may endanger the patient through failure.
A further feature of the present invention is the unit construction which permits facility in installation compared to prior art systems.
BRIEF DESCRIPTION OF THE DRAWINGS
.
Other ob~ect and advantages of the present :inven-tion will be apparent to those skilled in the art from the following description with reference to the drawings wherein like numbers denote like parts and wherein:
Figure 1 is a general perspective view of a toilet seat assembly in accordance with the present invention il-lustrating its relationship to a water closet;
Figure 2 is a general perspective view of a toilet seat assembly in accordance with the present invention.
Figure 3 is an enlarged perspective view of a toilet seat assembly and seat-carriage in accordance with the present invention;
Figure 4 is a diagrammatic side elevation through ~281390~
a cylinder structure employed in -the present invention;
Figure 5 is a diagrammatic illustration of the hose connections in accordance with present invention and illu-strates the water flow when the valve is actuated into the raise position;
Figure 6 is a further diagrammatic illustration of the hose connections and shows the water flow when the valve is actuated into a lower position.
DE5CRIPTION OF THE PREFERRED EM~ODIME~T
Referring now to Figure 1 a toilet bowl is indi-cated at 10 and the cistern at 11. The cistern water supply pipe is indicated at 12. These components are standard.
A seat assèmbly in accordance with the present in-vention comprises a generally U-shaped seat 20 which is mounted on seat carriage 21. Seat carriage 21 comprises a pair of plates 22 and 23 which are connected by bar 24.
Plates 22 and 23 are in turn connected to the upper surfaces of their respective adjacent pistons 25 and 26 of cylinders 30 and 31 which are disposed on either side of seat 20.
Plates 22 and 23 are also slidably engaged with guide rods 32 and 33 through collars 34 and 35 and to main-tain the cylinders 30 and 31, the seat 20, the guide rods 32 and 33 in a fixed relationship which wi~l facilitate shipp-ing, and instaLlation cylinders 30 and 31 are mounted on a U-shaped plate 40 so that the relationship between the several components is constant.
In Figures 4 through 6 inclusive the hose connec-tions are illustrated. As shown A 3 position valve 50 which is actuated by lever 51 is provided. Valve 50 is connected through hose 60 and pressure control valve 65 to the cistern supply pipe 12 and constitutes the water supply for cylinders 30 and 31. From valve 50 hose 61 is connected to the upper side of pistons 25 and 26, and hose 62 is con-nected to the lower side thereof. Hose 63 provides a return connection from valve 50 to the cistern 11. Valve 65 con-trols the level of pressure in the system and permits ad-justment according to the weight of -the patient to be moved.
In Figures 5 and 6 the lever 51 is shown in the 128139~;~
"raise" and "lower" modes, respectively, a third mode, "sta-tionary" is not sllown but it will be apparent to -those skil-led in the art ~hat in that position valve 50 maintains the water level in the cylinders 30 and 31 stationary. As show in Figure 1 the valve 50 is wall-mounted for convenient operation or may be suitably mounted on an arm 75 extending forward from one of plates 22 or 23 as shown in Figure 2.
~hen the assembly has been installed as illustrated in Figure 1 and the hose connections completed the user may approach the seat 20 and raise it to an appropriate height.
As mentioned previously, seat 20 moves on carriage 21 along rods 32 and 33. Carriage 21 is moved by cylinders 30 and 31 which act in parallel and move seat 20 vertically. When the patient is resting on the edge of seat 20, lever 51 is then actuated to the "down" position and by virtue of valve 50 and the hose connections pistons 25 and 26 are urged down-wardly as illustrated in Figure 6 and the patient is carried down.
The lever 51 when released will move in-to the "sta-tionary" position such that the water pressure in the hoses is in e~uilibrium and the seat is maintained at the selected position.
When the patient wishes to rise, the lever 51 is moved to the "raise" position and the water flow assumes the path illustrated in Figure 5 so that the seat 20 is raised.
It will be observed that seat 20 has additional rigidity because of the depending skirt 71.
When the seat 20 reaches the desired heiyht, ie when the patient's legs are straight and in a posi~ion o~
potential greatest support the patient may slide forward.
If the legs are not quite at the maximum support then the seat 20 may be further raised until such a position is reach.
It will be observed that by the action or motion followed by the present mechanisrn and permitted to the patient, the patient is fully supported throughout the travel un-til he or she reaches a position of self support.
The raising of patients by the arms or the upper bodies does not permit this form of elevation. Neither does the raising and tipping which ensues from a hinging action 12889~
of the seat.
While the present invention has been described with respect to a specific embodiment it will be understood that the other embodiments may be embraced without departing from the present invention as claimed.
The principal object of the present invention is to raise and lower a disabled person and give such a person a greater degree of freedom than heretofore in using water closets.
BACKGROUND TO THE INVENTION
. _ The prior art relating to the present sub~ect matter is exemplified by the following patents:
United States Patent 4,185,335, January 29, 1980, Alvis, entitled "MOVABLE TOILET SEAT ASSEMBLY";
United States Patent 3,458,872, August 5, 1969, Hellstrom, entitled "WATER CLOSET TILTABLE SEAT":
United States Patent 3,473,174, October 21, 1969, G.E. Cool, entitled "SEAT CONSTRUCTION";
United States Patent 3,594,831, July 27, 1971, Hamilton C. deJong, entitled "COMBINATION TOILET SEAT AND
ELEVATOR THEREFOR";
United States Patent 4,031,576, June 28, 1977, H.C.
Epstein, entitled "I~VALID TOILET AID";
United States Patent 3,619,820, November 16, 1971, T.R. Cain et al, entitled "TOILET SEAT AUXILIA~Y", These prior art patents all provide different mechanisms for moving patients relative to the water closet but in common they have failed to apprecia-te that in assisting the patient to move relative to the water closet it i9 important to move the patient into a position such that he may move from the water closet and in so doing the patient must be moved into a position such that he or she is in the position which provides the most support, ie. when the legs are straight.
SUMMARY OF THE PRESENT INVENTION
In accordance with the present invention the patient is moved relative to a water closet by moving the patient on a seat assembly which comprises:
a pair of spaced apart guide rods;
a seat carriage movable vertically along said guide lZ~
rods to a selected position;
a substantially U~shaped seat member mounted on said seat carriage and movable therewith:
motor means for moving said carriage along said guide rods, and control means for actuating said motor means.
As the patient's backside is moved in this manner the legs are straightened and the patient can slide forward toward the front of the seat until at the position where the legs are straight when he can move off with facility. This movement described gives the patient maximum support. With those mechanisms which have a tilt patient is propelled on to his legs at a point in time where the legs, being bent, are nct as capable of supporting the patient as they are when straightened.
~ further feature of the present invention is the use of the water closet water supply as a source of power.
This makes for a cheap economical power source. The coupl-ing of a pair of cylinders in parallel makes for a smooth reliable operation and the use of water makes the operation less likely t~ wide fluctuations as may endanger the patient through failure.
A further feature of the present invention is the unit construction which permits facility in installation compared to prior art systems.
BRIEF DESCRIPTION OF THE DRAWINGS
.
Other ob~ect and advantages of the present :inven-tion will be apparent to those skilled in the art from the following description with reference to the drawings wherein like numbers denote like parts and wherein:
Figure 1 is a general perspective view of a toilet seat assembly in accordance with the present invention il-lustrating its relationship to a water closet;
Figure 2 is a general perspective view of a toilet seat assembly in accordance with the present invention.
Figure 3 is an enlarged perspective view of a toilet seat assembly and seat-carriage in accordance with the present invention;
Figure 4 is a diagrammatic side elevation through ~281390~
a cylinder structure employed in -the present invention;
Figure 5 is a diagrammatic illustration of the hose connections in accordance with present invention and illu-strates the water flow when the valve is actuated into the raise position;
Figure 6 is a further diagrammatic illustration of the hose connections and shows the water flow when the valve is actuated into a lower position.
DE5CRIPTION OF THE PREFERRED EM~ODIME~T
Referring now to Figure 1 a toilet bowl is indi-cated at 10 and the cistern at 11. The cistern water supply pipe is indicated at 12. These components are standard.
A seat assèmbly in accordance with the present in-vention comprises a generally U-shaped seat 20 which is mounted on seat carriage 21. Seat carriage 21 comprises a pair of plates 22 and 23 which are connected by bar 24.
Plates 22 and 23 are in turn connected to the upper surfaces of their respective adjacent pistons 25 and 26 of cylinders 30 and 31 which are disposed on either side of seat 20.
Plates 22 and 23 are also slidably engaged with guide rods 32 and 33 through collars 34 and 35 and to main-tain the cylinders 30 and 31, the seat 20, the guide rods 32 and 33 in a fixed relationship which wi~l facilitate shipp-ing, and instaLlation cylinders 30 and 31 are mounted on a U-shaped plate 40 so that the relationship between the several components is constant.
In Figures 4 through 6 inclusive the hose connec-tions are illustrated. As shown A 3 position valve 50 which is actuated by lever 51 is provided. Valve 50 is connected through hose 60 and pressure control valve 65 to the cistern supply pipe 12 and constitutes the water supply for cylinders 30 and 31. From valve 50 hose 61 is connected to the upper side of pistons 25 and 26, and hose 62 is con-nected to the lower side thereof. Hose 63 provides a return connection from valve 50 to the cistern 11. Valve 65 con-trols the level of pressure in the system and permits ad-justment according to the weight of -the patient to be moved.
In Figures 5 and 6 the lever 51 is shown in the 128139~;~
"raise" and "lower" modes, respectively, a third mode, "sta-tionary" is not sllown but it will be apparent to -those skil-led in the art ~hat in that position valve 50 maintains the water level in the cylinders 30 and 31 stationary. As show in Figure 1 the valve 50 is wall-mounted for convenient operation or may be suitably mounted on an arm 75 extending forward from one of plates 22 or 23 as shown in Figure 2.
~hen the assembly has been installed as illustrated in Figure 1 and the hose connections completed the user may approach the seat 20 and raise it to an appropriate height.
As mentioned previously, seat 20 moves on carriage 21 along rods 32 and 33. Carriage 21 is moved by cylinders 30 and 31 which act in parallel and move seat 20 vertically. When the patient is resting on the edge of seat 20, lever 51 is then actuated to the "down" position and by virtue of valve 50 and the hose connections pistons 25 and 26 are urged down-wardly as illustrated in Figure 6 and the patient is carried down.
The lever 51 when released will move in-to the "sta-tionary" position such that the water pressure in the hoses is in e~uilibrium and the seat is maintained at the selected position.
When the patient wishes to rise, the lever 51 is moved to the "raise" position and the water flow assumes the path illustrated in Figure 5 so that the seat 20 is raised.
It will be observed that seat 20 has additional rigidity because of the depending skirt 71.
When the seat 20 reaches the desired heiyht, ie when the patient's legs are straight and in a posi~ion o~
potential greatest support the patient may slide forward.
If the legs are not quite at the maximum support then the seat 20 may be further raised until such a position is reach.
It will be observed that by the action or motion followed by the present mechanisrn and permitted to the patient, the patient is fully supported throughout the travel un-til he or she reaches a position of self support.
The raising of patients by the arms or the upper bodies does not permit this form of elevation. Neither does the raising and tipping which ensues from a hinging action 12889~
of the seat.
While the present invention has been described with respect to a specific embodiment it will be understood that the other embodiments may be embraced without departing from the present invention as claimed.
Claims (6)
1. A seat support and hydraulic apparatus for use in raising and lowering a user in predetermined relationto a receptacle such as a toilet, comprising:
a base plate for location in predetermined relation adjacent said receptacle;
a pair of spaced apart guide rods extending upwardly in cantilevered supported relation from said base plate, located upon the rearward portion of the base plate;
carriage means slidable mounted on said guide rods for passage therealong, said carriage means having a seat platform extending forwardly thereof for attachment of a seat in support relation thereon;
load transfer side portions of said carriage means extending forwardly of said guide rods;
extensible hydraulic cylinder means located forwardly of the guide rods and extending substantially parallel therewith, positioned in secured relation between said base plate and said carriage means load transfer portions, one on each side of said apparatus; and non-electrical hydraulic circuit means including a pressure reduction valve, and a control valve connected with said hydraulic cylinder means, for attachment, in use, to a domestic hydraulic supply and powered solely thereby, to enable a user to selectively rise and lower said seat platform.
a base plate for location in predetermined relation adjacent said receptacle;
a pair of spaced apart guide rods extending upwardly in cantilevered supported relation from said base plate, located upon the rearward portion of the base plate;
carriage means slidable mounted on said guide rods for passage therealong, said carriage means having a seat platform extending forwardly thereof for attachment of a seat in support relation thereon;
load transfer side portions of said carriage means extending forwardly of said guide rods;
extensible hydraulic cylinder means located forwardly of the guide rods and extending substantially parallel therewith, positioned in secured relation between said base plate and said carriage means load transfer portions, one on each side of said apparatus; and non-electrical hydraulic circuit means including a pressure reduction valve, and a control valve connected with said hydraulic cylinder means, for attachment, in use, to a domestic hydraulic supply and powered solely thereby, to enable a user to selectively rise and lower said seat platform.
2. The apparatus as set forth in Claim 1, said hydraulic cylinder means including a rounded base portion in constrained relation with said base plate.
3. The apparatus as claimed in Claim 1 wherein said seat platform further includes a downwardly depending reinforcing skirt located in rearwardly spaced relation from a front opening thereof which defines a U-shaped member.
4. A seat assembly as claimed in Claim 3, said base plate comprising a rigid, substantially planar, U-shaped floor-engaging member in use to encompass the front and sides of said toilet bowl, said guide rods and said cylinders being mounted thereon on opposite arms of said U in spaced-apart relation relative to said toilet bowl.
5. A seat assembly as claimed in Claim 3 further including arm means mountable on said seat carriage, said control valve being mounted on said arm means.
6. The apparatus as set forth in Claim 1, Claim 2 or Claim 3, including a toilet seat mounted upon said platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000505182A CA1288902C (en) | 1986-03-26 | 1986-03-26 | Toilet lift device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000505182A CA1288902C (en) | 1986-03-26 | 1986-03-26 | Toilet lift device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1288902C true CA1288902C (en) | 1991-09-17 |
Family
ID=4132749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000505182A Expired - Lifetime CA1288902C (en) | 1986-03-26 | 1986-03-26 | Toilet lift device |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1288902C (en) |
-
1986
- 1986-03-26 CA CA000505182A patent/CA1288902C/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |