The present disclosure relates to a wheelchair (1) comprising: a chassis (3), a seat system (5) attached to the chassis (3), which seat system (5) has a backrest (5b) having a front side (5c) and a backside (5d), and an energy absorber (9) having a proximal end (9a) attached to the seat system (5) o
The present disclosure relates to a wheelchair (1) comprising: a chassis (3), a seat system (5) attached to the chassis (3), which seat system (5) has a backrest (5b) having a front side (5c) and a backside (5d), and an energy absorber (9) having a proximal end (9a) attached to the seat system (5) or joining the chassis (3), a distal end (9b) having means that enable attachment of straps or belts to the distal end (9b), and an intermediate portion (9c) extending from the proximal end (9a) to the distal end (9b) in a direction from the front side (5c) towards the back side (5d), wherein the intermediate portion (9c) has a curved portion adapted to straighten and plastically deform when the energy absorber (9) is subjected to a pulling force above a predetermined threshold.
대표청구항▼
1. A wheelchair comprising: a chassis,a seat system attached to the chassis, the seat system having a backrest having a front side and a backside, anda rigid energy absorber having a proximal end attached directly to the backside of the seat system or joined directly with the chassis, a distal end c
1. A wheelchair comprising: a chassis,a seat system attached to the chassis, the seat system having a backrest having a front side and a backside, anda rigid energy absorber having a proximal end attached directly to the backside of the seat system or joined directly with the chassis, a distal end configured to have straps or belts attached thereto, and an intermediate portion extending from the proximal end to the distal end in a direction from the front side towards the back side, wherein the intermediate portion has a fixed curved portion adapted to straighten and plastically deform when the energy absorber is subjected to a pulling force above a predetermined threshold. 2. The wheelchair as claimed in claim 1, wherein the intermediate portion extends from the proximal end to the distal end in one plane. 3. The wheelchair as claimed in any of the preceding claims, wherein the proximal end of the energy absorber is attached to a backside of a seat part of the seat system. 4. The wheelchair as claimed in claim 3, wherein the backside and the proximal end of the energy absorber are configured to be mounted to each other in order to attach the proximal end to the backside of the seat part. 5. The wheelchair as claimed in claim 4, wherein the energy absorber comprises a first mounting structure including openings arranged to receive respective bolts, and wherein the backside of the seat part includes a second mounting structure having corresponding openings. 6. The wheelchair as claimed in claim 1 or 2, wherein the proximal end of the energy absorber is attached to a lower end of the backside of the backrest. 7. The wheelchair as claimed in claim 1, wherein the energy absorber has a first arm and a second arm, each of the first arm and the second arm having a proximal end, a distal end and an intermediate portion which together define the proximal end, the distal end and the intermediate portion, respectively, of the energy absorber. 8. The wheelchair as claimed in claim 7, wherein the intermediate portion of each of the first arm and the second arm each have the curved portion, wherein the curved portion of the first arm faces the curved portion of the second arm. 9. The wheelchair as claimed in claim 8, wherein the energy absorber comprises a connecting portion which joins the proximal ends of the first arm and the second arm. 10. The wheelchair as claimed in claim 9, wherein the connecting portion has a second curved portion which extends in between the curved portion of the first arm and the curved portion of the second arm. 11. The wheelchair as claimed in claim 10, wherein the curved portion of the connecting portion extends beyond the curved portion of the first arm and the curved portion of the second arm in a direction from the proximal end towards the distal end. 12. The wheelchair as claimed in claim 11, wherein the curved portion of the connecting portion which extends beyond the curved portion of the first arm and the curved portion of the second arm has a section which is wider than a minimal distance between the curved portion of the first arm and the curved portion of the second arm. 13. The wheelchair as claimed in any of claims 7-12 wherein the energy absorber is attached symmetrically to a backside of a seat part of the seat system with the first arm attached at one side of a symmetry axis extending in a direction from an end of the backrest which is closest to the chassis towards a headrest end of the backrest and the second arm attached at the other side of the symmetry axis. 14. The wheelchair as claimed in claim 1, wherein the distal end includes loops that enable attachment of the straps or the belts at the distal end. 15. The wheelchair as claimed in claim 1, wherein the energy absorber is made of low carbon steel or low alloy steel.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (8)
Gasquez Marcus R., Combination arm exercise apparatus and propulsion aid for a wheelchair.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.