초록 ▼

The stand-up unit comprises a support a stand-up frame, which is articulated on the support and has a seat carrier carrying a seat, and a backrest carrier carrying a backrest. Furthermore, a first lever parallelogram is provided in order to maintain the backrest upright in any position. The backrest

The stand-up unit comprises a support a stand-up frame, which is articulated on the support and has a seat carrier carrying a seat, and a backrest carrier carrying a backrest. Furthermore, a first lever parallelogram is provided in order to maintain the backrest upright in any position. The backrest can be displaced by the first lever parallelogram by means of a rod, in order to ensure that no undesirable relative movement occurs between the backrest and the back of the user when getting up or sitting down. A second lever parallelogram controls the movement of the seat when getting up and sitting down to ensure that no relative movement develops between the seat and buttocks of the user. The stand-up unit may be provided with a base to serve as a chair, particularly a therapy chair. The stand-up unit, however, may also serve as a stand-up wheelchair, when connected to an undercarriage. Spring joint elements support the standing up.

대표청구항 ▼

1. A stand-up unit, comprising: (a) a first parallelogram comprising first, second, third, and fourth levers operably coupled to each other at first parallelogram pivot points, wherein the first lever comprises a first arm and the second lever comprises a second arm;(b) a second parallelogram compri

1. A stand-up unit, comprising: (a) a first parallelogram comprising first, second, third, and fourth levers operably coupled to each other at first parallelogram pivot points, wherein the first lever comprises a first arm and the second lever comprises a second arm;(b) a second parallelogram comprising fifth and sixth levers and the first and second arms operably coupled to each other at second parallelogram pivot points, wherein one of the first parallelogram pivot points and one of the second parallelogram pivot points is a single common pivot point;(c) a support comprising a first support lever operably coupled to the common pivot point and a second support lever operably coupled to the second parallelogram;(d) a backrest operably coupled to a backrest carrier;(e) a seat operably coupled to the third lever; and(f) a coupling component operably coupled at a first end to the first lever and at a second end to the backrest carrier, whereby the coupling component is configured to prevent undesirable movement between the backrest and a user's back. 2. The stand-up unit of claim 1, wherein the first parallelogram is configured to hold the backrest upright both in a sitting position and in a standing position of a user. 3. The stand-up unit of claim 1, further comprising a footrest operably coupled to the support. 4. The stand-up unit of claim 3, wherein the second parallelogram is configured to move the seat upward in relation to the footrest. 5. The stand-up unit of claim 1, wherein the coupling component is configured to urge the backrest carrier downward as the stand-up unit is moved toward a standing position. 6. The stand-up unit of claim 1, further comprising a linear drive operably coupled to the support and the first parallelogram. 7. The stand-up unit of claim 1, further comprising a first spring joint element operably coupled to the first support lever and the support and a second spring joint element operably coupled to the first support lever and the first lever. 8. The stand-up unit of claim 7, wherein, in a sitting position, the first and second spring joint elements are biased and strive to pivot the seat upward. 9. The stand-up unit of claim 8, wherein the first and second spring elements generate, after reaching a predetermined pivot position, a force that counteracts further upward pivoting of the seat. 10. The stand-up unit of claim 1, further comprising a chair consisting of the backrest and the seat to which the stand-up unit is operably coupled and further including a pedestal. 11. The stand-up unit of claim 1, further comprising a wheelchair with a chassis to which the stand-up unit is operably coupled. 12. A stand-up unit, comprising: (a) a support comprising a first support lever and a second support lever;(b) a footrest operably coupled to the support; and(b) a stand-up mount operably coupled to the support, the stand-up mount comprising: (i) a first parallelogram comprising first, second, third, and fourth levers operably coupled to each other at first parallelogram pivot points, wherein the first lever comprises a first arm and the second lever comprises a second arm;(ii) a second parallelogram operably coupled to the second support lever, the second parallelogram comprising fifth and sixth levers and the first and second arms operably coupled to each other at second parallelogram pivot points, wherein one of the first parallelogram pivot points and one of the second parallelogram pivot points is a single common pivot point, wherein the common pivot point is operably coupled to the first support lever;(iii) a coupling component operably coupled at a first end to the first lever and at a second end to a backrest carrier, whereby the coupling component is configured to prevent undesirable movement between the backrest and a user's back when the stand-up unit is moved toward a standing position;(iv) a backrest operably coupled to the backrest carrier; and(v) a seat operably coupled to the third lever. 13. The stand-up unit of claim 12, wherein the first parallelogram is configured to hold the backrest upright both in a sitting position and in a standing position of a user. 14. The stand-up unit of claim 12, wherein the second parallelogram is configured to move the seat upward in relation to the footrest. 15. The stand-up unit of claim 12, wherein the coupling component is configured to move the backrest toward a trailing end of the seat during a change from a sitting position to the standing position of the stand-up unit. 16. The stand-up unit of claim 12, wherein the coupling component is configured to urge the backrest carrier downward as the standup unit is moved toward the standing position.