CA1065788A - Hoisting gear - Google Patents
Hoisting gearInfo
- Publication number
- CA1065788A CA1065788A CA299,351A CA299351A CA1065788A CA 1065788 A CA1065788 A CA 1065788A CA 299351 A CA299351 A CA 299351A CA 1065788 A CA1065788 A CA 1065788A
- Authority
- CA
- Canada
- Prior art keywords
- coupling
- coupling element
- bathtub
- fitting
- front surface
- 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
Links
- 230000008878 coupling Effects 0.000 claims abstract description 66
- 238000010168 coupling process Methods 0.000 claims abstract description 66
- 238000005859 coupling reaction Methods 0.000 claims abstract description 66
- 230000002093 peripheral effect Effects 0.000 claims 1
- 230000003014 reinforcing effect Effects 0.000 claims 1
- 230000002787 reinforcement Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Devices For Medical Bathing And Washing (AREA)
Abstract
INVENTOR
HUNS ARNE VALENTIN JOHANSSON
TITLE
AN IMPROVED HOISTING GEAR
ABSTRACT OF THE DISCLOSURE
The present invention relates to a hoisting gear for hoisting or lifting, at least one object, such as a bath tub, such object being awkwardly connected to at least one fixedly mounted power actuator, such as a pressure-cylinder and piston device, through a coupling or carrier unit cooperating with, at least one fixedly mounted guide member.
HUNS ARNE VALENTIN JOHANSSON
TITLE
AN IMPROVED HOISTING GEAR
ABSTRACT OF THE DISCLOSURE
The present invention relates to a hoisting gear for hoisting or lifting, at least one object, such as a bath tub, such object being awkwardly connected to at least one fixedly mounted power actuator, such as a pressure-cylinder and piston device, through a coupling or carrier unit cooperating with, at least one fixedly mounted guide member.
Description
AN IMPROVED HOISTING GEAR
The pre~ent invention relates to a hoisting gear for hoisting or lifting, at least one object, such as a bath tub, such object being operatively connected to at least one fixedly mounted power actuator, such as a pressure-cylinder and piston device, through a coupling or carrier unit cooperating with at least one fixedly mounted guide member. ~
In hoisting gears of the type disclosed in the ~ -opening paragraph, a problem is frequently encountered which ;-resides in that, under high-load conditions, movable parts tend to cant relative to adjacent fixed parts, accompanied by the risk of wedging of the movable parts. Particularly where the hoisting gear is intended to execute great lifting movements, the wedging problem may become serious, 80 that the ris~ of substantial deformations or breakages of ; load-carrying parts cannot be excluded.
Effort~ made with a view to solve the guiding function in hoiffting gears have resulted in complex and, ;~
fir~t and fore et, heavy, unwieldy and expensive ~ `
conatructions.
The present invention has for its object to eliminate said drawbacks and to provide a hoisting gear which i~ extremely simple, stable and well-functioning, at the same time eliminating and tendencies of wedging. This i result, according to the invention, i8 substantially accomplished by the fact that the hoisting gear comprises at least one guiding sleeve forming part of the coupling unit and being positively guided to move along the guide by -~
embracing the latter~ said guiding sleeve being arranged, on one hand, to control at least one device connecting the connecting unit with the power actuator, and, on the other ~0657B8 -hand, to control at least one connecting member forming part of the connecting unit.
y , .
The invention will be described more in detail hereinafter with reference to the accompanying drawings, in which~
Fig. 1 is a frontal view of the inventive hoisting gear;
Fig. 2 is a view in cross section taken along line II-II in Fig. I;
Fig. 3 is a side-elevational view of the hoisting g-ar~
Fig. 4 is a plan view of the hoisting gear;
Fig. 5 i~ an enlarged side-view of a portion of ~ -the hoisting gearJ and ~ Fig. 6 is a plan-view of the portion illustrated j in Fig. 5.
Fig. 7 i8 a side view of the hoisting gear :1 - , according to the inv-ntion~
Fig. 8 i- a rear-end view of the hoisting gear;
~ 20 Fig. 9 i- a side-view of the hoisting gear and ;~ illu~trates the mounting arrangement according to the . ;, inv-ntion~ and . , Fig. 10 is a plan-view of the hoisting gear.
., "
The hoi~ting gear illustrated in the drawing~ is intended to b- u-ed for hoisting or lifting an object or j~ load di-pos-d alongside the gear. The principal components of the hoisting g-ar are a frame 1, at lea~t one power . , ~ :
actuator 2 mounted on the frame 1, guiding means disposea on . ~ the frame 1 and incIuding at loast one guide member 3, a connecting unit 4 cooperating with the guide member 3 and carrying the object to be lifted, for instance a bath tub 6, . :
.
. ,'.
~ ~ 3 and a connecting device 5 connecting the power actuator unit 1 with said coupling unit 4.
The frame 1 illustrated in the drawings is intended to be cast into a floor for stationary installation. The frame 1 in principle, is boxlike in structure and comprised a ba~e plate la adapted to be cast into the floor, while an upper portion lb forming the top of the frame is adapted to lie flush with the floor surface.
Projecting upward from the upper frame-portion lb are side-flanges lc ~erving as reinforcements for the frame and, in addition, as mounting flanges for the guide members 3.
As an alternative to a stationary, cast-in frame, it would be possible, of course, to use a frame free-standing on the floor ~not illustrated) for carrying the inventive hoisting goar.
As the power actuator 2, a device is preferably used which comprises a pressure cylinder 2a and a piston 2b displaceAble therein and having a piston rod 2c projecting ~' !~ upwardly from said cylinder 2a. In order to obtain a water-drlv-n (so-called water-hydraulic) power actuator, the chamb-r 2d for receiving the operating fluid of the cylinder j 2a may b- connected to the domestic water mains or to a s-parate pump. A~ alternatives to water-driven power actuators, electro-mechanical or electro-hydraulical devices may be employed.
In order to obtain a simple and stable design of this hoi~ting gear and to avoid any risk of wedging of movable parts, according to the present invention, at least one guidung sleeve 4a forming part of the coupling unit 4 is positively controlled to move along the guide member 3 by embracing the same, said guiding sleeve 4a being adapted, on ~065788 one hand, to control the connecting device 5 connecting the coupling unit 4 with the power actuator 2 and, on the other hand, to control at least one coupling member 4b forming part of said unit 4.
_ To ensure a stable and fo~eful connection between the power actuator 2 and the coupling members 4b of the coupling unit 4, the connecting device 5 and the coupling members 4b are both individually mounted on the guide sleeve 4a, that is to say, the guiding sleeve 4a interconnects the connecting device 5 with the coupling members 4b.
Especially stable the combination of the connecting device 5 with the coupling unit 4 will be if, as seen in plan view, the guiding sleeve 4a forms a corner piece between a portion Sa of the connecting device 5 and the coupling member 4b. -An advantageous symmetry of load transmission will be obtained in particular if the coupling member 4b projects from the guiding sleeve 4a in such a way that an imaginary extension of the coupling member 4b would intersect the guid- column 3. In this connection, it would be advantagoous to connect the coupling device 5 to the guiding sloeve 4a in a manner to cause an imaginary extension of the portion 5a to intersect the guide column 3.
In order to provide a rigid and forceful guide m-mber 3 and guiding sleeve 4a without any necessity of over-dimensioning these parts, the guide member 3 may be designed with a four-sides, preferably rectangular, tubular cross-section, and the guiding sleeve may be a four-~ided, ¦ pr-ferably rectangular part. The guide member 3 preferably ~` include~ sheet-metal angular corner plates 3a made of stainless steel, for example, and formed with sliding ~ surfaces, and the guiding sleeve 4a cooperates with these .~ .
.
, corner plate~ 3a through the intermediary of bearing elements 4e, made of plastic material, for example. The corner plates 3a and bearing elements 4e enable sliding movement of the guiding sleeve 4a, prevent binding through any formation of rust, and, in addition, enable a well-guided sliding of the guiding sleeve 4a along the guide member 3.
In the embodiment shown, the hoisting gear i8 particularly well equalised as to loads by the power actuator 2 being carried between the guide members 3 80 that the guiding sleeves 4a are rigidly connected with each other by the member 5a of the coupling device 5 disposed between the guide members 3. As seen from the drawings, the member 5a in its turn is secured to the lifting part of the power actuator 2, i.e. to the piston rod 2c.
As an additionally stablising factor, the guide -columns 3 may have their outwardly facing sideY welded into the inwardly facing sides of the frame flanges lc, which would enable the guide members to take up high bending stresa in the forward direction.
The hoisting gear according to the invention is adapted to carry a plurality of coupling members 4b, which is enabled by the expedient that each member 5b forming part of the coupllng device S and extending vertically inwardly of the guide members 3 forms a carrier for a least two vertically align-d guiding sleeves 4a having coupling membor8 4b. Owing to the side-by-side arrangement of the power actuator 2, guide members 3 and coupling device 5, a v-ry rigid "power pack" for lifting great loads is obtained.
-`, ~ It is possible, within the scope of the appended .~ .
' - 6 - ~
.~ ~ ,, - . ~ . -~06S788 claims, to vary the number of elements from which the hoisting gear is assembled, and also to vary the design of elements forming part thereof. Thus, for example, although at least one guide member or column 3 is required, it would be possible optionally to employ two, three or more guide members. To limit the lifting stroke, the guide column 3 may be provided with a stop abutment 3b at it~ top end.
Further, the number of guiding sleeves can be varied, too, as well as the number of coupling devices 4b. To conceal or protect the hoisting gear, it may be encased in a casing 7 carried by the frame, and outside this casing 7a panel 8 may be disposed which is mounted in the guiding sleeves 4a and ; is intended to carry various equipment articles, such as any r-quired sanitary equipment.
The hoisting gear illu~trated in the drawings i8 adapted for lifting at least one object 6 disposed beside the same. The principal components of the hoisting gear are a framework 1, at least one power actuator or unit 2 mounted on the framework 1, guiding means mounted on the framework 1 and comprising at least one guide member 3, a coupling unit 4 cooper~tlng with the guide member 3 and carrying the object 6 to be lifted, such as a bath tub, and a connecting device 5 which connects the power unit 1 with the coupling unit 4.
With a view to make this hoisting gear structurally simple and stable and devoid of any risk of Z wedging of movable parts~ according to the present ~ invention, at least one guiding sleeve 4a forming part of `? th- coupling unit 4 is positively guided to move along the guide member 3 by ombracing the latter, whereby the guiding sleeve 4a is ad~pted, on one hand, to guide the connecting -?
. ' ' :`
.~ . ' , ' ' .
~065788 device S connecting the coupling unit 4 with the power unit
The pre~ent invention relates to a hoisting gear for hoisting or lifting, at least one object, such as a bath tub, such object being operatively connected to at least one fixedly mounted power actuator, such as a pressure-cylinder and piston device, through a coupling or carrier unit cooperating with at least one fixedly mounted guide member. ~
In hoisting gears of the type disclosed in the ~ -opening paragraph, a problem is frequently encountered which ;-resides in that, under high-load conditions, movable parts tend to cant relative to adjacent fixed parts, accompanied by the risk of wedging of the movable parts. Particularly where the hoisting gear is intended to execute great lifting movements, the wedging problem may become serious, 80 that the ris~ of substantial deformations or breakages of ; load-carrying parts cannot be excluded.
Effort~ made with a view to solve the guiding function in hoiffting gears have resulted in complex and, ;~
fir~t and fore et, heavy, unwieldy and expensive ~ `
conatructions.
The present invention has for its object to eliminate said drawbacks and to provide a hoisting gear which i~ extremely simple, stable and well-functioning, at the same time eliminating and tendencies of wedging. This i result, according to the invention, i8 substantially accomplished by the fact that the hoisting gear comprises at least one guiding sleeve forming part of the coupling unit and being positively guided to move along the guide by -~
embracing the latter~ said guiding sleeve being arranged, on one hand, to control at least one device connecting the connecting unit with the power actuator, and, on the other ~0657B8 -hand, to control at least one connecting member forming part of the connecting unit.
y , .
The invention will be described more in detail hereinafter with reference to the accompanying drawings, in which~
Fig. 1 is a frontal view of the inventive hoisting gear;
Fig. 2 is a view in cross section taken along line II-II in Fig. I;
Fig. 3 is a side-elevational view of the hoisting g-ar~
Fig. 4 is a plan view of the hoisting gear;
Fig. 5 i~ an enlarged side-view of a portion of ~ -the hoisting gearJ and ~ Fig. 6 is a plan-view of the portion illustrated j in Fig. 5.
Fig. 7 i8 a side view of the hoisting gear :1 - , according to the inv-ntion~
Fig. 8 i- a rear-end view of the hoisting gear;
~ 20 Fig. 9 i- a side-view of the hoisting gear and ;~ illu~trates the mounting arrangement according to the . ;, inv-ntion~ and . , Fig. 10 is a plan-view of the hoisting gear.
., "
The hoi~ting gear illustrated in the drawing~ is intended to b- u-ed for hoisting or lifting an object or j~ load di-pos-d alongside the gear. The principal components of the hoisting g-ar are a frame 1, at lea~t one power . , ~ :
actuator 2 mounted on the frame 1, guiding means disposea on . ~ the frame 1 and incIuding at loast one guide member 3, a connecting unit 4 cooperating with the guide member 3 and carrying the object to be lifted, for instance a bath tub 6, . :
.
. ,'.
~ ~ 3 and a connecting device 5 connecting the power actuator unit 1 with said coupling unit 4.
The frame 1 illustrated in the drawings is intended to be cast into a floor for stationary installation. The frame 1 in principle, is boxlike in structure and comprised a ba~e plate la adapted to be cast into the floor, while an upper portion lb forming the top of the frame is adapted to lie flush with the floor surface.
Projecting upward from the upper frame-portion lb are side-flanges lc ~erving as reinforcements for the frame and, in addition, as mounting flanges for the guide members 3.
As an alternative to a stationary, cast-in frame, it would be possible, of course, to use a frame free-standing on the floor ~not illustrated) for carrying the inventive hoisting goar.
As the power actuator 2, a device is preferably used which comprises a pressure cylinder 2a and a piston 2b displaceAble therein and having a piston rod 2c projecting ~' !~ upwardly from said cylinder 2a. In order to obtain a water-drlv-n (so-called water-hydraulic) power actuator, the chamb-r 2d for receiving the operating fluid of the cylinder j 2a may b- connected to the domestic water mains or to a s-parate pump. A~ alternatives to water-driven power actuators, electro-mechanical or electro-hydraulical devices may be employed.
In order to obtain a simple and stable design of this hoi~ting gear and to avoid any risk of wedging of movable parts, according to the present invention, at least one guidung sleeve 4a forming part of the coupling unit 4 is positively controlled to move along the guide member 3 by embracing the same, said guiding sleeve 4a being adapted, on ~065788 one hand, to control the connecting device 5 connecting the coupling unit 4 with the power actuator 2 and, on the other hand, to control at least one coupling member 4b forming part of said unit 4.
_ To ensure a stable and fo~eful connection between the power actuator 2 and the coupling members 4b of the coupling unit 4, the connecting device 5 and the coupling members 4b are both individually mounted on the guide sleeve 4a, that is to say, the guiding sleeve 4a interconnects the connecting device 5 with the coupling members 4b.
Especially stable the combination of the connecting device 5 with the coupling unit 4 will be if, as seen in plan view, the guiding sleeve 4a forms a corner piece between a portion Sa of the connecting device 5 and the coupling member 4b. -An advantageous symmetry of load transmission will be obtained in particular if the coupling member 4b projects from the guiding sleeve 4a in such a way that an imaginary extension of the coupling member 4b would intersect the guid- column 3. In this connection, it would be advantagoous to connect the coupling device 5 to the guiding sloeve 4a in a manner to cause an imaginary extension of the portion 5a to intersect the guide column 3.
In order to provide a rigid and forceful guide m-mber 3 and guiding sleeve 4a without any necessity of over-dimensioning these parts, the guide member 3 may be designed with a four-sides, preferably rectangular, tubular cross-section, and the guiding sleeve may be a four-~ided, ¦ pr-ferably rectangular part. The guide member 3 preferably ~` include~ sheet-metal angular corner plates 3a made of stainless steel, for example, and formed with sliding ~ surfaces, and the guiding sleeve 4a cooperates with these .~ .
.
, corner plate~ 3a through the intermediary of bearing elements 4e, made of plastic material, for example. The corner plates 3a and bearing elements 4e enable sliding movement of the guiding sleeve 4a, prevent binding through any formation of rust, and, in addition, enable a well-guided sliding of the guiding sleeve 4a along the guide member 3.
In the embodiment shown, the hoisting gear i8 particularly well equalised as to loads by the power actuator 2 being carried between the guide members 3 80 that the guiding sleeves 4a are rigidly connected with each other by the member 5a of the coupling device 5 disposed between the guide members 3. As seen from the drawings, the member 5a in its turn is secured to the lifting part of the power actuator 2, i.e. to the piston rod 2c.
As an additionally stablising factor, the guide -columns 3 may have their outwardly facing sideY welded into the inwardly facing sides of the frame flanges lc, which would enable the guide members to take up high bending stresa in the forward direction.
The hoisting gear according to the invention is adapted to carry a plurality of coupling members 4b, which is enabled by the expedient that each member 5b forming part of the coupllng device S and extending vertically inwardly of the guide members 3 forms a carrier for a least two vertically align-d guiding sleeves 4a having coupling membor8 4b. Owing to the side-by-side arrangement of the power actuator 2, guide members 3 and coupling device 5, a v-ry rigid "power pack" for lifting great loads is obtained.
-`, ~ It is possible, within the scope of the appended .~ .
' - 6 - ~
.~ ~ ,, - . ~ . -~06S788 claims, to vary the number of elements from which the hoisting gear is assembled, and also to vary the design of elements forming part thereof. Thus, for example, although at least one guide member or column 3 is required, it would be possible optionally to employ two, three or more guide members. To limit the lifting stroke, the guide column 3 may be provided with a stop abutment 3b at it~ top end.
Further, the number of guiding sleeves can be varied, too, as well as the number of coupling devices 4b. To conceal or protect the hoisting gear, it may be encased in a casing 7 carried by the frame, and outside this casing 7a panel 8 may be disposed which is mounted in the guiding sleeves 4a and ; is intended to carry various equipment articles, such as any r-quired sanitary equipment.
The hoisting gear illu~trated in the drawings i8 adapted for lifting at least one object 6 disposed beside the same. The principal components of the hoisting gear are a framework 1, at least one power actuator or unit 2 mounted on the framework 1, guiding means mounted on the framework 1 and comprising at least one guide member 3, a coupling unit 4 cooper~tlng with the guide member 3 and carrying the object 6 to be lifted, such as a bath tub, and a connecting device 5 which connects the power unit 1 with the coupling unit 4.
With a view to make this hoisting gear structurally simple and stable and devoid of any risk of Z wedging of movable parts~ according to the present ~ invention, at least one guiding sleeve 4a forming part of `? th- coupling unit 4 is positively guided to move along the guide member 3 by ombracing the latter, whereby the guiding sleeve 4a is ad~pted, on one hand, to guide the connecting -?
. ' ' :`
.~ . ' , ' ' .
~065788 device S connecting the coupling unit 4 with the power unit
2, and, on the other hand, to guide at least one coupling member 4b forming part of said unit 4.
The hoisting gear and the object to be lifted compri~e a mounting arrangement which, according to the invention, substantially comprises at least one (preferably two) upper coupling elements 4c for taking up tensile stre~ses and at least one (preferably two) lower coupling elements 4d for taXing up compressive stre~ses. Further, the bath tub 6 comprises at lea~t one fitting 6a cooperating ~ with the upper coupling element 4c and at least one support -~
; 6b cooperating with the lower coupling element 4d, ~aid coupling elements 4c, 4d and associated fitting 6a and support 6b, on one hand, being entirely disposed between the power unit and the side 6c of the bath tub 6 facing the ~ -power unit, and, on the other hand, being designed as interconnectible coupling devices which carry the bath tub 6 as a cantilever supported unit adjacent the hoisting gear. , The advantages of this arrangement, in the first placo, reside in the obtainment of a very simplified and 8table con~truction which, owing to its simple design, will Jubstantially reduce the manufacturing cost as compared to prior-art arrangements of the corresponding type.
~ Furthermore, the interior of the bath tub 6 and/or the ¦ occupant of tho bath tub 6 will become more easily Accessible, since three of the bath tub sides are completely free from connecting arrangements. This will also involve increased possibilities of utilizing a transfer device for ;
transferring patients into and out of the bath-tub 6. In ~
addition, the entire equipment can easily be kept neat and ~ -clean, a factor of particular importance when the equipment .. , ~ . -~:: .:: . . . , . :. , . - .- .
~ . . . .
'f'., , ~ ', ' ' . ' '; , ' '. ' .' '''" : , , ,' ' , '' : .
is to be used in 8anitary in~tallation~. since both hoisting gear and bath tub 6 are devoid of lengthy carrier arms projecting therefrom, the mounting and assembly operation is simple, and the units will not be bulky and unwieldy during transportation and internal handling thereof.
In order to provide a particularly safe and also simple mounting arrangement, the upper coupling element 4c, at least, may include a coupling plate (not shown) and the fitting 6a may include a coupling plate 6d (the support 6b may include a coupling plate 6e cooperating with the lower coupling element 4d), the coupling plates being interconnected by bolts 7 or the like.
In order to obtain a forceful attachment of the ~-fittings 6a to the bath tub 6, these fittings, on one hand, are attached to the outer surface of the bath-tub wall, and, on the other hand, to the under~ide of a flange 6f ~ .
~ projecting from the top-edge of the bath-tube wall.
¦ To make the bath tub 6 less unwieldy during tran~portation and al~o easily attachable to the hoisting g-ar, the fitting 6a and support 6b may be disposed entirely inwardly of a vertical plane extending through the edge 6g :
of the projecting flange 6f 80 that the engagement surfaces of the fitting 6a snd support 6b will lie substantially in ssid ver~ical plane.
The region of attachment between fitting/support and bath tub 6 will be very rigid if each fitting 6a and/or support 6b is connected to a reinforcement (not shown) extending both along, and attached to, a portion of the side 6c of the bath tub 6 facing the hoisting gear, and along, and attached to, a portion of another side of the bath tub 6.
~' .
9 _ . . .
: . . . .. .
;; .-.- , - - , , . ' ~ ~ : .
- .... . :- . .
A~ will be seen from the arrangement exemplified in the drawing~, the inventive arrangement includes two upper coupling elements and fittings cooperating therewith, and two lower coupling or supporting elements and supports cooperating therewith. The upper coupling elements and fittings are interconnected by being screwed or hooked together. The lower coupling elements and supports may be interconnected in a similar way, it being, however, simpler and frequently enough to let the supports rest on the lower coupling elements.
,; . , In addition to the inventive arrangement here described and its advantages, structural modifications and ;
features not illustrated are possible within the scope of the appendant claims. In connection with the arrangement here described, it may be mentioned that the bath-tub outlet 8 may have connected to it a spirally coiled discharge hose (not shown) the terminal end of which is immersed into a draining gutter (not shown). This will ensure a non-8plashing discharge of the bath tub 6 even if the tub is di-po8ed at a high level above the floor.
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:,, . . : ~ : . ; . , , -
The hoisting gear and the object to be lifted compri~e a mounting arrangement which, according to the invention, substantially comprises at least one (preferably two) upper coupling elements 4c for taking up tensile stre~ses and at least one (preferably two) lower coupling elements 4d for taXing up compressive stre~ses. Further, the bath tub 6 comprises at lea~t one fitting 6a cooperating ~ with the upper coupling element 4c and at least one support -~
; 6b cooperating with the lower coupling element 4d, ~aid coupling elements 4c, 4d and associated fitting 6a and support 6b, on one hand, being entirely disposed between the power unit and the side 6c of the bath tub 6 facing the ~ -power unit, and, on the other hand, being designed as interconnectible coupling devices which carry the bath tub 6 as a cantilever supported unit adjacent the hoisting gear. , The advantages of this arrangement, in the first placo, reside in the obtainment of a very simplified and 8table con~truction which, owing to its simple design, will Jubstantially reduce the manufacturing cost as compared to prior-art arrangements of the corresponding type.
~ Furthermore, the interior of the bath tub 6 and/or the ¦ occupant of tho bath tub 6 will become more easily Accessible, since three of the bath tub sides are completely free from connecting arrangements. This will also involve increased possibilities of utilizing a transfer device for ;
transferring patients into and out of the bath-tub 6. In ~
addition, the entire equipment can easily be kept neat and ~ -clean, a factor of particular importance when the equipment .. , ~ . -~:: .:: . . . , . :. , . - .- .
~ . . . .
'f'., , ~ ', ' ' . ' '; , ' '. ' .' '''" : , , ,' ' , '' : .
is to be used in 8anitary in~tallation~. since both hoisting gear and bath tub 6 are devoid of lengthy carrier arms projecting therefrom, the mounting and assembly operation is simple, and the units will not be bulky and unwieldy during transportation and internal handling thereof.
In order to provide a particularly safe and also simple mounting arrangement, the upper coupling element 4c, at least, may include a coupling plate (not shown) and the fitting 6a may include a coupling plate 6d (the support 6b may include a coupling plate 6e cooperating with the lower coupling element 4d), the coupling plates being interconnected by bolts 7 or the like.
In order to obtain a forceful attachment of the ~-fittings 6a to the bath tub 6, these fittings, on one hand, are attached to the outer surface of the bath-tub wall, and, on the other hand, to the under~ide of a flange 6f ~ .
~ projecting from the top-edge of the bath-tube wall.
¦ To make the bath tub 6 less unwieldy during tran~portation and al~o easily attachable to the hoisting g-ar, the fitting 6a and support 6b may be disposed entirely inwardly of a vertical plane extending through the edge 6g :
of the projecting flange 6f 80 that the engagement surfaces of the fitting 6a snd support 6b will lie substantially in ssid ver~ical plane.
The region of attachment between fitting/support and bath tub 6 will be very rigid if each fitting 6a and/or support 6b is connected to a reinforcement (not shown) extending both along, and attached to, a portion of the side 6c of the bath tub 6 facing the hoisting gear, and along, and attached to, a portion of another side of the bath tub 6.
~' .
9 _ . . .
: . . . .. .
;; .-.- , - - , , . ' ~ ~ : .
- .... . :- . .
A~ will be seen from the arrangement exemplified in the drawing~, the inventive arrangement includes two upper coupling elements and fittings cooperating therewith, and two lower coupling or supporting elements and supports cooperating therewith. The upper coupling elements and fittings are interconnected by being screwed or hooked together. The lower coupling elements and supports may be interconnected in a similar way, it being, however, simpler and frequently enough to let the supports rest on the lower coupling elements.
,; . , In addition to the inventive arrangement here described and its advantages, structural modifications and ;
features not illustrated are possible within the scope of the appendant claims. In connection with the arrangement here described, it may be mentioned that the bath-tub outlet 8 may have connected to it a spirally coiled discharge hose (not shown) the terminal end of which is immersed into a draining gutter (not shown). This will ensure a non-8plashing discharge of the bath tub 6 even if the tub is di-po8ed at a high level above the floor.
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Claims (6)
1. The combination of a bathtub and a hoisting apparatus disposed beside the bathtub for hoisting or lifting the tub, comprising:
a hoisting apparatus including a fixedly mounted power actuator unit, and coupling elements connected to the power actuator unit and arranged to cooperate with at least one fixedly mounted, substantially vertical guide member, said coupling elements including at least one upper coupling element for taking up tensile load, and at least one lower coupling element spaced below said upper coupling element for taking up compressive load, said upper and said lower coupling elements having generally vertical front surfaces thereon;
a bathtub having side walls and end walls, one of said walls being disposed to confront said upper and said lower coupling elements;
at least one upper fitting carried by said one wall of said bathtub, and including a generally vertical front surface arranged to be placed in abutment with said gene-rally vertical front surface of said upper coupling element, said upper fitting being connectable with said upper coupling element when said generally vertical front surfaces of said upper coupling element and said upper fitting are in abutment for taking up tensile loads imposed by the tub; and at least one lower support carried by said one wall of said bathtub below said upper fitting, and including a generally vertical front surface adapted to engage said generally vertical front surface of said lower coupling element when said upper fitting and said upper coupling element are connected in abutment for taking up compressive loads imposed by the tub;
said coupling elements, said fitting and said support being disposed entirely between said hoisting apparatus and said one wall of said bathtub, and carrying the bathtub as a self-supporting cantilever unit adjacent to the hois-ting apparatus.
a hoisting apparatus including a fixedly mounted power actuator unit, and coupling elements connected to the power actuator unit and arranged to cooperate with at least one fixedly mounted, substantially vertical guide member, said coupling elements including at least one upper coupling element for taking up tensile load, and at least one lower coupling element spaced below said upper coupling element for taking up compressive load, said upper and said lower coupling elements having generally vertical front surfaces thereon;
a bathtub having side walls and end walls, one of said walls being disposed to confront said upper and said lower coupling elements;
at least one upper fitting carried by said one wall of said bathtub, and including a generally vertical front surface arranged to be placed in abutment with said gene-rally vertical front surface of said upper coupling element, said upper fitting being connectable with said upper coupling element when said generally vertical front surfaces of said upper coupling element and said upper fitting are in abutment for taking up tensile loads imposed by the tub; and at least one lower support carried by said one wall of said bathtub below said upper fitting, and including a generally vertical front surface adapted to engage said generally vertical front surface of said lower coupling element when said upper fitting and said upper coupling element are connected in abutment for taking up compressive loads imposed by the tub;
said coupling elements, said fitting and said support being disposed entirely between said hoisting apparatus and said one wall of said bathtub, and carrying the bathtub as a self-supporting cantilever unit adjacent to the hois-ting apparatus.
2. The combination as recited in claim 1, wherein said bathtub has an outwardly directed, peripheral reinforcing and stiffening flange around the top edge thereof, and wherein said upper fitting is attached to the underside of said flange.
3. The combination as recited in claim 2, wherein said upper fitting and said lower support are disposed entirely inwardly of a vertical plane extending through the outer edge of said projecting flange, and have their front surfaces which are interengageable with the front surfaces of said coupling elements disposed to lie approximately in said plane.
4. The combination as recited in claim 1, wherein said upper coupling element includes a coupling plate carrying said upper coupling element front surface, and said upper fitting includes a coupling plate carrying said front surface of said upper fitting, said coupling plates being interconnected by bolt means.
5. The combination as recited in claim 4, wherein said lower support also includes a coupling plate, which carries said front surface of said lower support and which is connected with said lower coupling element.
6. The combination as recited in claim 5, including at least two upper coupling elements, at least two lower coupling elements, at least two upper fittings, and at least two lower supports.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA299,351A CA1065788A (en) | 1978-03-16 | 1978-03-16 | Hoisting gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA299,351A CA1065788A (en) | 1978-03-16 | 1978-03-16 | Hoisting gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1065788A true CA1065788A (en) | 1979-11-06 |
Family
ID=4111038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA299,351A Expired CA1065788A (en) | 1978-03-16 | 1978-03-16 | Hoisting gear |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1065788A (en) |
-
1978
- 1978-03-16 CA CA299,351A patent/CA1065788A/en not_active Expired
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