Patent ID: 7174983

Claim:
A motor-driven vehicle comprising: a chassis having an upper side; a post extending upwardly and transversely from said upper side of said chassis, said post having an upright engaging wall formed with an engaging hole; a battery housing seated on said upper side of said chassis adjacent to said post, said battery housing including a mounting wall disposed adjacent to said engaging wall of said post; a coupling device including an engaging rod having a pivot portion pivoted to said mounting wall of said battery housing, said engaging rod further having an engaging portion extending from said pivot portion, said engaging rod being pivotable relative to said battery housing between an engaging position, where said engaging portion extends into said engaging hole so as to couple said battery housing to said post, and a disengaging position, where said engaging portion is disengaged from said engaging hole so as to permit detachment of said battery housing from said post; and a biasing member for urging said engaging rod to the engaging position.