The present invention is a collapsible self-propelled chair on wheels that is lightweight in construction and easily collapsed, carried, stored and transported by public or private means. The chair performs the function of a wheelchair while avoiding the appearance of a traditional wheelchair thus a
The present invention is a collapsible self-propelled chair on wheels that is lightweight in construction and easily collapsed, carried, stored and transported by public or private means. The chair performs the function of a wheelchair while avoiding the appearance of a traditional wheelchair thus avoiding the invalid stigma often associated with wheelchairs. It can be configured as an assistive mobility device to fill the unmet needs of aging healthy adults who wish to retain their independence and social interactions or a medical device to assist those with medical needs. Additional features such as an armrest, a footrest, or a reclining back are easily added during manufacture and because of the chairs uncomplicated design and duplicity of parts, it is very economical to manufacture.
대표청구항▼
The invention claimed is: 1. A four-sided collapsible chair frame assembly on wheels comprising: i. Four frame sides each comprising two pivotally connected intersecting support members per side; ii. said frame assembly including four upper brackets and four lower brackets: iii. one end of each sup
The invention claimed is: 1. A four-sided collapsible chair frame assembly on wheels comprising: i. Four frame sides each comprising two pivotally connected intersecting support members per side; ii. said frame assembly including four upper brackets and four lower brackets: iii. one end of each support member is connected to a lower bracket and the other end of each support member is connected to an upper bracket, wherein the lower end of each support member is connected to a lower bracket that also connects the lower end of an adjacent support member and the upper end of each support member is connected to an upper bracket that also connects the upper end of the adjacent support member, iv. said collapsible chair frame having a designated front side comprising two lower brackets and two upper corner brackets and opposite the front side a designated back side comprising two lower brackets and two upper corner brackets, v. a vertical post mounted on each backside lower bracket and extending vertically from the lower bracket to or through a vertically aligned upper bracket, vi. two telescoping anti-torque posts each extending vertically from the front lower brackets to or through an upper front bracket, vii. a wheel at each corner attached to at least one of: a lower bracket, a structure attached to a lower bracket, a post in vertical alignment with the lower bracket, an attachment to a post in vertical alignment with the lower bracket, whereby a collapsible four-sided wheeled chair frame is formed. 2. The invention of claim 1 wherein a means for braking and locking the wheeled chair frame into a stationary position is provided. 3. The invention of claim 1 including means for a backrest support. 4. The invention of claim 1 wherein the frame includes at least one of: a seat means, a seat and a backrest means, a combined seat and backrest means, each attached to the frame for supporting a person. 5. The invention of claim 1 wherein the frame includes a footrest means attached to the frame to support a persons feet. 6. The invention of claim 1 wherein the frame includes an armrest means attached to the frame to support a persons arms while seated. 7. The invention of claim 1 wherein the frame includes a means connected to said backrest support posts for moving the chair, including lifting the rear wheels off the ground or tilting the front wheels off the ground in order to change elevation or avoid obstructions to movement, said means including at least one of: a single handle, a pair of handles, being rapidly removable, being collapsible, being a permanent part of the chair. 8. The invention of claim 1 wherein a drive wheel is attached to at least one of: a lower bracket, a structure attached to a lower bracket, a post in vertical alignment with a lower and upper bracket, an attachment to a post in vertical alignment with a lower and upper bracket. 9. The invention of claim 1 where in a Hefty Strap means is provided for increased structural strength. 10. A mobility collapsible chair suitable for movement over a surface comprising: A. a four-sided frame, collapsible from front to back and side to side, said frame having front, back and sides; said frame including: a. a front side comprising front crossed support arms; b. a back side comprising back side crossed support arms; c. a left side comprising left side crossed arms, d. a right side comprising right side crossed arms e. each of said crossed support arms pivotally connected where they cross and being of equal length; f. wherein each of said arms has a lower end and an upper end; and g. wherein the lower end of one of the front support arms and the lower end of the adjacent left side support arm are connected to a left lower front bracket, adjacent thereto; and h. the lower end of one of the other front support arms and the lower end of the adjacent right side support arm are connected to a right lower front bracket adjacent thereto; and i. wherein the lower left end of one back support arm and the adjacent lower back left end of the left side support are connected to a lower left back bracket adjacent such respective ends, and j. wherein the lower right end of another back support arm and the adjacent lower right back end of the right side support arm are connected to a right lower back bracket adjacent such respective ends, and k. wherein the upper left end of the back support arm and the upper left back end of the side support arm are connected to an upper left back bracket adjacent such respective ends; and l. wherein the upper right ends of the back support arm and the upper right back end of the side support arm are connected to an upper right back bracket adjacent such respective ends; and m. wherein the upper left end of the front support arm and the upper left front end of the adjacent left side support arm are connected to an upper left front bracket adjacent such respective ends, n. wherein the upper right end of the front support arm and the upper right front end of the adjacent right side support arm are connected to an upper right front bracket adjacent such respective ends, B. Said chair further comprising a pair of rear backrest support posts, each having an upper end and a bottom end, the bottom of each post being connected to a lower rear bracket in vertical alignment with said post; each of said posts slidably passing through an upper bracket in vertical alignment with said post; said posts having the strength required to permit lifting the front or back of the chair off the ground in order to change elevation or avoid obstructions to movement, C. right and left telescoping anti-torque posts, each having an upper section and a lower section, with one section slidably telescoping within the other; and wherein the right post is supported by said right front bracket and the left post is supported by said left front bracket; said posts being maintained in vertical alignment by said brackets, and each of said posts slidably passing through an upper bracket in vertical alignment with said post; D. wheels attached to at least one of: the front lower brackets, an attachment to the front lower bracket, the front anti-torque posts, an attachment to the front anti-torque posts, the back lower brackets, an attachment to the back lower brackets, the rear backrest support posts, an attachment to the rear backrest support posts, E. means connected to at least one of: said front post, rear posts, upper corner brackets for holding the frame in its open position. 11. A mobility collapsible chair as claimed in claim 10, including at least one of: a separate seat, a separate seat and separate back, a combined seat and back. 12. A mobility collapsible chair as claimed in claim 10 wherein at least a pair of: rear wheels, front wheels are drive wheels that will permit the occupant to generate motion. 13. A mobility collapsible chair as claimed in 10 including a footrest. 14. A mobility collapsible chair as claimed in claim 13 wherein said footrest is adjustable in both the horizontal and the vertical planes. 15. A footrest as claimed in claim 13 wherein the footrest comprises a forward telescoping frame member and is at least one of: collapsible, detachable. 16. A mobility collapsible chair as claimed in claim 10 wherein hand grips are placed on the upper ends of telescoping anti-torque posts to assist the chair occupant to stand or sit. 17. A mobility collapsible chair as claimed in claim 16 wherein flexible arm rests are attached to the hand grips on the upper end of the anti-torque posts and to the backrest posts. 18. The mobility chair as recited in claim 10, wherein the position of the backrest is adjustable. 19. The invention in claim 10 wherein the means for moving the chair is a push bar connected by means of a quick release fitting to the upper ends of the backrest support posts, said fittings, posts, and push bar having the strength and rigidity required to permit lifting the rear wheels off the ground or tilting the front wheels off the ground in order to change elevation or avoid obstructions to movement. 20. A collapsible chair frame assembly on wheels comprising: i. At least four frame sides each comprising two pivotally connected intersecting support members per side: ii. said frame assembly including a number of upper brackets and a number of lower brackets equal to the number of sides: iii. one end of each support member is connected to a lower bracket and the other end of each support member is connected to an upper bracket, wherein the lower end of each support member is connected to a lower bracket that also connects the lower end of the adjacent support member and the upper end of each support member is connected to an upper bracket that also connects the upper end of the adjacent support member, iv. said collapsible chair frame having a designated front side comprising two lower brackets and two upper brackets and opposite side designated back side comprising two lower brackets and two upper corner brackets v. a vertical post mounted on each back side lower bracket and extending vertically from the lower bracket to or through a vertically aligned upper bracket, vi. a telescoping anti-torque posts mounted on each front lower bracket having a caster wheel said telescoping anti-torque posts extending vertically from the lower brackets to or through a vertically aligned upper bracket vii. a wheel attached at each corner attached to at lease one of: a lower bracket, a structure attached to a lower bracket, a post in vertical alignment with a lower and upper bracket, a structure attached to a post in vertical alignment with a lower and upper bracket, viii. a Hefty Strap means attached to at least one of: two lower brackets, two vertical posts for providing additional structural strength, whereby a collapsible wheeled chair frame assembly is formed.
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이 특허에 인용된 특허 (25)
Munn Daniel C. ; Eastman ; III Robert ; Pestrue Jeffrey Allan, Adjustably reclinable folding chair.
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