UMBRELLA SYSTEM |
|||||||
| 申请号 | US16028908 | 申请日 | 2018-07-06 | 公开(公告)号 | US20180310678A1 | 公开(公告)日 | 2018-11-01 |
| 申请人 | Willis Jay Mullet; Richard Scott Hand; John Foreman; | 发明人 | Willis Jay Mullet; Richard Scott Hand; John Foreman; | ||||
| 摘要 | An umbrella system includes a support pole connected to a rotating tube positioned around a center tube that extends between the support pole and a center support that is connected to an umbrella frame. The rotating tube has one or more helical grooves therein that are engaged by teeth of a hub which is connected to the umbrella frame. As the rotating tube is rotated, the hub is driven along the length of the rotating tube thereby opening and closing the umbrella frame. In one arrangement system includes a motor housing assembly including a plurality of batteries and a motor that includes a driven gear that meshes with a stationary gear which causes rotation of the rotating tube. The system also includes a counterbalance assembly positioned within the rotating tube. The counterbalance assembly includes at least one spring positioned within the rotating tube that provides a counterbalance force. | ||||||
| 权利要求 | |||||||
| 说明书全文 | |||||||
QQ群二维码
意见反馈
意见反馈