| 摘要 |
A telescopic rod in order to use objects or tools at a desired height above the head of a user, in particular for harvesting fruit from trees or for pruning tree branches or painting high walls or ceilings, comprises a rod base with a base end, a rod extension slidingly engaging with the rod base, a support member configured to support a tool, arranged at a support end of the rod extension opposite to the rod base, an actuation means to automatically push/pull the rod extension with respect to the rod base, a rod actuation command at said base end to operate the actuation means between a push position, in which the actuation means pushes said rod extension to elongate said rod, a pull position, in which the actuation means pulls the rod extension to shorten the rod, a standby position in which the actuation means is inoperative and the rod can be used at a desired rod length to maneuver the tool at a desired height. |
| 主权项 |
1. A telescopic rod configured to handle an object or a tool at a desired height above the head of a user, comprising:
a rod base having a base end; a rod extension slidingly engaging with said rod base; an actuation unit arranged to push/pull said rod extension with respect to said rod base; a support member arranged at a support end of said rod extension opposite to said rod base, said support member being configured to support the tool; a rod actuation command arranged at said base end to operate said actuation unit; wherein said actuation unit comprises: a nut element integral to said rod extension, and a longitudinal screw member that pivotally engages with said rod base; a motor means that causes said screw member to rotate upon operation by said rod actuation command; wherein said nut element is arranged to slide within said rod base and to engage with said screw member in such a way that, upon rotation of said screw member, said rod extension slides within said rod base; and wherein said rod base has a longitudinal channel in which said screw member engages with a predetermined play, wherein said longitudinal channel has a polygonal-shaped cross-section. |
