IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0988581
(2008-04-28)
|
등록번호 |
US-8628108
(2014-01-14)
|
국제출원번호 |
PCT/CA2008/000807
(2008-04-28)
|
§371/§102 date |
20110111
(20110111)
|
국제공개번호 |
WO2009/132409
(2009-11-05)
|
발명자
/ 주소 |
- Gingras, David
- Simoneau, Éric
- Couture, Pierre-André
|
출원인 / 주소 |
|
대리인 / 주소 |
Norton Rose Fulbright Canada LLP
|
인용정보 |
피인용 횟수 :
3 인용 특허 :
8 |
초록
▼
A light weight foldable and customizable wheelchair (4) is described. It is comprised of a tubular frame (9) formed at least in part of molded polymer matrix composite material tubes and connectors. The wheelchair has two side frame tubular assemblies (9, 9′) interconnected in side-by-side relations
A light weight foldable and customizable wheelchair (4) is described. It is comprised of a tubular frame (9) formed at least in part of molded polymer matrix composite material tubes and connectors. The wheelchair has two side frame tubular assemblies (9, 9′) interconnected in side-by-side relationship by a pair of cross-brace (8, 8′) members. The side frame tubular assemblies define a seating section (6) therebetween. A rear wheel mounting post (80) is secured to each of the side frame assemblies adjacent a rear end section thereof for securing a rear wheel (86) to each of the side frame tubular assemblies (9, 9′) at a desired selected position. A front wheel assembly (7, 7′) is secured to a lowermost front end of each of the side frame tubular assemblies. The seating section (6) is configurable along three axes. Each of the side frame tubular assemblies (9, 9′) is adjustable in depth and in height, constituting a first and second of the three axes, by cutting tubes (70′, 70″, 71, 72) of the side frame tubular assemblies to a desired length and gluing them to associated ones of the connectors (71′, 71″, 72′, 73). Each cross-brace member (8, 8′) of the pair of cross-brace members, have a cross-brace connecting tube (30) adjustable in length to provide a width adjustment which constitutes a third of the three axes of the side frame tubular assemblies. A pair of back canes (10) is secured to the two side tubular assemblies (9, 9′).
대표청구항
▼
1. A light weight foldable and customizable wheelchair comprising a tubular frame formed at least in part of molded polymer matrix composite material tubes and connectors, said wheelchair having two side frame tubular assemblies interconnected in side-by-side relationship by a pair of cross-brace me
1. A light weight foldable and customizable wheelchair comprising a tubular frame formed at least in part of molded polymer matrix composite material tubes and connectors, said wheelchair having two side frame tubular assemblies interconnected in side-by-side relationship by a pair of cross-brace members, said side frame tubular assemblies defining a seating section therebetween, a rear wheel mounting post assembly secured to each said side frame assemblies adjacent a rear end section thereof for securing a rear wheel to each said side frame tubular assemblies at a desired selected position, said rear wheel mounting post assembly having an adjustable mounting post with a plurality of axle receiving holes disposed along an axle support axis extending vertically through said mounting post, and a clamp at opposed ends of said adjustable mounting post for engagement with opposed horizontal tubular members of said side frame tubular assemblies, said opposed horizontal tubular members having rib formations extending perpendicular to said horizontal tube members to provide immovable retention of said clamps, said clamp at opposed ends of said mounting post providing horizontal displacement and securement of said mounting post to a desired position in said side frame tubular assemblies, a front wheel assembly secured to a lowermost front end of each said side frame tubular assemblies, said seating section being configurable along three axes; each said side frame tubular assemblies being adjustable in depth and in height, constituting a first and second of said three axes, by forming or cutting tubes of said side frame tubular assemblies to a desired length and gluing same to associated ones of said connections; each cross-brace member of said pair of cross-brace members having a cross-brace connecting tube adjustable in length to provide a width adjustment constituting a third of said three axes, of said side frame tubular assemblies; a pair of back canes secured to said two side frame tubular assemblies and a seat and backrest support secured respectively to said side frame tubular assemblies and said pair of back canes. 2. A light weight foldable and customizable wheelchair as claimed in claim 1 wherein each said side frame tubular assemblies are substantially rectangular tubular side frame assemblies each comprised of a first straight upper tubular member to cut to a first desired length to provide said depth adjustment; two transverse connectors each at opposed ends of the first straight upper tubular member; a molded tubular member having a front vertical tubular arm, and a transverse horizontal tubular connector interconnected together through a molded head tube sleeve integrally formed therewith, said front vertical tubular arm having a free end for cutting same to a second desired length to provide said height adjustment; a horizontal straight lower tubular member cut to the first desired length forming two free ends, one being connected to the transverse horizontal tubular connector; a third rear vertical tubular member cut to the second desired length forming two respective free ends; and a lower rear transverse connector at one end as the third rear vertical tubular member; said free end of the vertical tubular arm, another one of said two free ends of said horizontal straight lower tubular member and another one of the respective free ends of the third rear vertical tubular member each being received in associated ones of said transverse connectors for securement therein by glue to form said rectangular tubular side frame. 3. A light weight foldable and customizable wheelchair as claimed in claim 2 wherein said first straight upper tubular member, said horizontal straight lower tubular member and said third rear vertical tubular member are one of molded, rolled and extruded with said polymer matrix composite material, and wherein said two transverse connectors, said molded tubular member and straight lower rear transverse connector are molded of said polymer matrix composite material. 4. A light weight foldable and customizable wheelchair as claimed in claim 2 wherein said cross brace connecting tube is provided with a connecting damp at a lower end for pivotal connection to said horizontal tubular member of said molded tubular member of one of said rectangular tubular side frame, and a clamping member at an opposite upper end for removable connection with said first straight upper tubular member of the other of said rectangular tubular side frame, and a link rod pivotally connected at one end to said first straight upper tubular member of the other of said rectangular tubular side frame and at an opposed end to said cross-brace connecting tube. 5. A light weight foldable and customizable wheelchair as claimed in claim 4 wherein said pair of cross-brace members are pivotally interconnected together on a pivot connection at about a mid-length thereof whereby to cause said rectangular tubular side frames to be folded one adjacent the other. 6. A light weight foldable and customizable wheelchair as claimed in claim 5, wherein said link rod is a flexible link rod to release tension in the backrest support when said rectangular tubular side frames are folded adjacent each other. 7. A light weight foldable and customizable wheelchair as claimed in claim 2 wherein said rear wheel mounting post assembly is formed by a machined rectangular tubular extrusion member, said tubular extrusion member having opposed flat side walls. 8. A light weight foldable and customizable wheelchair as claimed in claim 1, wherein the axle receiving holes are formed at an angle extending in a range of 0 to 12 degrees, from the horizontal for providing a camber to the rear wheel. 9. A light weight foldable and customizable wheelchair as claimed in claim 4 wherein universal clamps are connected to tubular members and said horizontal tubular member of said molded tubular member of said rectangular tubular side frame assembly at a desired position to provide interconnection with associated members of said wheelchair, the universal clamps each having two separate interconnectable clamp sections which engage together via a securing bolt and an integrally formed locking ridge in each said sections, the securing bolt providing securement of said clamp to said reinforced brace member with said locking ridge providing for interconnection of said parts together with said ridges interlocking with one another. 10. A light weight foldable and customizable wheelchair as claimed in claim 2 wherein said back canes are angularly adjustable back canes comprised of a straight vertical tube section having upper handle sections and a lower curved flange connector formation, a cane support insert secured in an open top end of a rear one of said transverse connectors, said cane support insert having a curved connecting end formation for facial arresting coupling with said curve flange connector formation to connect said cane at a desired rearwardly inclined angle. 11. A light weight foldable and customizable wheelchair as claimed in claim 1, further comprising a universal clamp for clamping about a wheelchair tubular member, the universal clamp comprising: two separate clamp sections having an arcuate clamping face, each said damp section having a main body having two opposite ends, one of the two opposite ends of each one of the two separate damp sections comprising an interlocking ridge formation formed at a straight horizontal free end thereof to provide a gripping connection when mated together, and another one of the two opposite ends of each one of the two separate members forming a base having an opening for receiving a bolt therein,the bolt and the interlocking ridge formation securing the two separate clamp sections together at their two opposite ends to clamp about said tubular member of a wheelchair, the universal clamp equally distributing a clamping force around the tubular member upon application of a tension force by the securement of the bolt. 12. A light weight foldable and customizable wheelchair further comprising a universal clamp as claimed in claim 11, wherein at least one of the two clamp sections has an integrally formed attachment element for securement of another wheelchair member thereto. 13. A light weight foldable and customizable wheelchair further comprising a universal clamp as claimed in claim 12, wherein said other wheelchair member is one of an armrest or a clothes guard, or a brake assembly of said wheelchair. 14. A light weight foldable and customizable wheelchair further comprising a universal clamp as claimed in claim 12, wherein said another wheelchair member is another tubular member retained in side-by-side relationship. 15. A light weight foldable and customizable wheelchair further comprising a universal clamp as claimed in claim 12, wherein said another wheelchair member is a wheel connecting post of said wheelchair.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.