发明名称 |
ANTI-TIP SYSTEM FOR A POWER WHEELCHAIR |
摘要 |
An anti-tip system is provided for improving the stability of a powered vehicle, such as a powered wheelchair. The vehicle includes a drive-train assembly pivotally mounted to a main structural frame. A suspension system biases the drive-train assembly and its connected anti-tip wheel to a predetermined resting position. The drive-train assembly bi-directionally rotates about a pivot in response to torque applied to or acceleration forces on the vehicle. A linkage arrangement is provided and is characterized by a suspension arm pivotally mounting to the main structural frame about a pivot at one end thereof and an anti-tip wheel at the other end. The linkage may further include at least one link operable to transfer the bi-directional displacement of the drive-train assembly to the suspension arm. The link may include a bell crank member and/or may be resiliently compressible.
|
申请公布号 |
US2008265541(A1) |
申请公布日期 |
2008.10.30 |
申请号 |
US20080170876 |
申请日期 |
2008.07.10 |
申请人 |
|
发明人 |
MULHERN JAMES P.;LEVI RONALD;GRYMKO CHRISTOPHER E. |
分类号 |
B60G21/00;A61G5/04;A61G5/06;A61G5/10;B60R21/00 |
主分类号 |
B60G21/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|