| 主权项 |
1. A collapsible pole assembly, comprising:
a first shaft section; a second shaft section telescopingly received on the first shaft section, wherein the first and second shaft sections are movable between an extended and a collapsed position; a locking mechanism configured to selectively lock the second shaft section in the extended position, wherein the locking mechanism includes a detent member moveably disposed between an extended position, wherein the detent member is engageable with the second shaft section to secure the second shaft section in the extended position, and a retracted position; and an expansion assembly arranged to prevent the first shaft section from continuing to slide axially upwardly away from the second shaft section when the first and second shaft sections are moved into the extended position, wherein the expansion assembly comprises a biasing member configured to urge the first and second shaft sections into the collapsed position, wherein the biasing member is configured to be at least partially biased when the detent member is in the extended position and engageable with the second shaft section when the second shaft section is in the extended position, wherein the expansion assembly further comprising an elongated member having first and second ends, the first end secured to one of the first and second shaft sections and the second end secured to the other of the first and second shaft sections, wherein the biasing member is disposed between the second end of the elongated member and the other of the first and second shaft sections. |
