| 摘要 |
The serviceable pole assembly (10) of this invention has a pole (16) supported by and pivotally connected to an upstanding pole support (11) by a pivot connection (14) which is disposed adjacent the upper end of the pole support (11). The pole (16) may be gravitationally biased to pivot from its upstanding attitude to a lowered position at which a light (50) supported at the end of the pole (16) is disposed at a serviceable height. Releasable locking means (20, 22) are provided for locking the pole (16) to the pole support (11) in the elevated position. A winch assembly (35) which is demountably supported by pole support (11) is provided for raising or lowering the pole (16). The winch (35) has a selectively extendible and retractable cable (39) which may be connected to an eye (41) on the lower end of the pole (16) and spaced from the pivot connection (14) to enable the winch (35) to be operated to pivot the pole (16) between its elevated and lowered positions. i I / / ~1 / // // -A,-Ii --- A 1/ 7' -A 4-A- If -A ,~-z ~( -- A I, ~ 15 /7 4 -I'~--->~ cc- *- ;-- U - * - C- ~ - - - - - - - - -.------- t |
