Patent Application
20190142665
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The disclosure and prior art relates to height adjustable chair devices and more particularly pertains to a new height adjustable chair device to assist a person who has fallen get to a standing position.
An embodiment of the disclosure meets the needs presented above by generally comprising a plurality of legs that define a first set of legs and a second set of legs. Each of the legs has a telescopically adjustable height. A base is attached to the first set of legs and the second set of legs such that the base has an adjustable height relative to a floor surface. A right armrest and a left armrest are included and each has an adjustable height. The right armrest is attached to and extends between the first set of legs. The left armrest is attached to and extends between the second set of legs. A plurality of lifting units is included. Each of the legs has a lifting unit mounted therein and extends into an associated one of the right and left armrests. Each of the lifting units extends or retracts an associated one of the legs with respect to the base to lift or lower the base with respect to the floor surface. A power supply is mounted within one of the armrests and is electrically coupled to the motor. A control switch is mounted in one of the armrest. The control switch is electrically coupled to the motor. The control switch controls a vertical movement of each of the legs and each of the armrests.
There has thus been outlined, rather broadly, the more important features of the disclosure in order that the detailed description thereof that follows may be better understood, and in order that the present contribution to the art may be better appreciated. There are additional features of the disclosure that will be described hereinafter and which will form the subject matter of the claims appended hereto.
The objects of the disclosure, along with the various features of novelty which characterize the disclosure, are pointed out with particularity in the claims annexed to and forming a part of this disclosure.
The disclosure will be better understood and objects other than those set forth above will become apparent when consideration is given to the following detailed description thereof. Such description makes reference to the annexed drawings wherein:
With reference now to the drawings, and in particular to
As best illustrated in
A base 30 is attached to the first set of legs 14 and the second set of legs 16 such that the base 30 has an adjustable height relative to a floor surface 32. The base 30 has a front side 34, a rear side 36, a first lateral side 38 and a second lateral side 40. The first lateral side 38 has the first set of legs 14 attached thereto and the second lateral side 40 has the second set of legs 16 attached thereto. The base 30 receives a person thereon and lifts the person vertically when each of the legs 12 extends upwardly. The base 30 lies in a horizontal plane and is attached to each of the upper portions 24 such that when the upper portion 24 moves vertically the base 30 moves vertically.
A pair of armrests 42 is included, including a right armrest 44 and a left armrest 46. Each of the armrests 42 has an adjustable height. The right armrest 44 is attached to and extends between the first set of legs 14 and the left armrest 46 is attached to and extends between the second set of legs 16. Each of the armrests 42 has an adjustable height relative to a corresponding one of the first and second sets of legs 14, 16. Each of the armrests 42 has a lower end 48 that engages the top end 18 of a corresponding one of the legs 12 at a fully retracted position.
A plurality of lifting units 50 is included and each of the legs 12 has a lifting unit 50 mounted therein that extends into an associated one of the right and left armrests 44, 46. Each of the lifting units 50 extends or retracts an associated one of the legs 12 with respect to the base 30 to lift or lower the base 30 with respect to the floor surface 32. Each of the lifting units 50 includes a motor 52 that is mounted on the leg 12. A drive rod 54 is threaded and mechanically coupled to the motor 52. The drive rod rotates in a first direction or a second direction when the motor 52 is turned on.
A first drive coupler 56 is threadably mounted to the drive rod 54 such that the upper portion 24 extends upwardly from the lower portion 22 when the drive rod 54 is rotated in a first direction and the upper portion 24 extends downwardly when the drive rod 54 is rotated in a second direction.
A second drive coupler 58 is positioned in the associated one of the right or left armrests 44, 46. The second drive coupler 58 is threadably mounted to the drive rod 54 such that each of the associated one of the right or left armrests 44, 46 extends upwardly when the drive rod 54 is rotated in a first direction and extends downwardly toward the associated leg 12 when the drive rod 54 is rotated in a second direction.
A power supply 60 is mounted within one of the armrests 42 and is electrically coupled to the motor 52. A plurality of control switches 62 is mounted in one of the armrest 42 and is electrically coupled to the motor 52. Each of the control switches 62 controls a vertical movement of each of the legs 12 and each of the armrests 42. The control switches 62 include an up button 64 and a down button 66. The up button 64 actuates each of the lifting units 50 such that the base 30 is lifted upwardly from the floor surface 32 and the down button 66 actuates each of the lifting units 50 such that the base 30 is lowered toward the floor surface 32.
A seat extension 68 is pivotally attached to a bottom side 70 of the base 30. A drive apparatus 72 is mounted to the base 30. The drive apparatus 72 is actuated to alternatingly move the seat extension 68 to a deployed position extending outwardly from the base 30 to a stored position extending downwardly from the base 30. A lower edge 74 of the seat extension 68 may have a plurality of teeth 76 positioned thereon. The drive apparatus 72 may include a drive motor 78. A cog 80 is mechanically coupled to the drive motor 78. The cog 80 engages the teeth 76 and extends the seat extension 68 outwardly when the drive motor 78 is rotated in a first direction and retracts the seat extension 68 when the drive motor 78 is rotated in a second direction. The plurality of control switches 62 may be electrically coupled to said drive motor 78 and may include buttons to extend and retract the seat extension 68.
A backrest 82 is attached to and extends upwardly from the rear side 36. A pair of braces 84 is included wherein a first one of the braces 84 is attached to and extends between the bottom ends 84 of each of the legs 12 in the first set of legs 14. A second one of the braces 84 is attached to and extends between the bottom ends 84 of each of the legs 12 of the second set of legs 16.
In use, the assembly 10 is used to assist a person, which has fallen, to stand back up. When at a fully retracted position, a body of the person is positioned on the base 30 such that the body of the person is orientated in a sitting position. The up button 64 is pressed to actuate each of the lifting units 50 wherein each of the upper portions 24 extend upwardly from a corresponding one of the lower portions 22, thereby moving the base 30 upwardly relative to the floor surface 32 to allow the person to stand up from an elevated sitting position instead of a position adjacent to the floor surface 32.
With respect to the above description then, it is to be realized that the optimum dimensional relationships for the parts of an embodiment enabled by the disclosure, to include variations in size, materials, shape, form, function and manner of operation, assembly and use, are deemed readily apparent and obvious to one skilled in the art, and all equivalent relationships to those illustrated in the drawings and described in the specification are intended to be encompassed by an embodiment of the disclosure.
Therefore, the foregoing is considered as illustrative only of the principles of the disclosure. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the disclosure to the exact construction and operation shown and described, and accordingly, all suitable modifications and equivalents may be resorted to, falling within the scope of the disclosure. In this patent document, the word “comprising” is used in its non-limiting sense to mean that items following the word are included, but items not specifically mentioned are not excluded. A reference to an element by the indefinite article “a” does not exclude the possibility that more than one of the element is present, unless the context clearly requires that there be only one of the elements.
