Patent ID: 6052452
Filing Date: 2000-04-18
Classification: G07F,H04M

Abstract:
A pay phone comprising a handset, a switch hook, a push button, a coin slot, a coin box, a coin-return assembly, and an operation module acted with said switch hook and said push button to achieve the functions of ""talk"", ""coin intake"", ""line off"" and ""coin return"", wherein said operation module comprises:a base frame, said base frame comprising a coin inlet attached to said coin slot at a bottom side to guide in the coin being inserted into said coin slot, a coin outlet at a bottom side thereof connected to said coin-return assembly to guide the inserted coin to said coin-return assembly;a movable frame pivoted to said base frame, said movable frame comprising an actuating board suspended above said base frame below said switch hook, a vertical board perpendicularly downwardly extended from said actuating board, a coin recognition scanning mechanism mounted on said vertical board to scan the inserted coin, a sliding track along a bottom side of said vertical board for guiding, said sliding track defining with said base frame a coin passage way for guiding the inserted coin from said coin slot to one of said coin box and said coin-return assembly;a suspension frame pivoted to said base frame at one lateral side adjacent to said movable frame, said suspension frame comprising a fixed top end pivoted to said base frame, a free bottom end, weight means fixedly mounted on said free bottom end, a stop rod protruded from one side thereof, a control board raised from a back side thereof, and a coin inlet defined on said control board, said control board being moved with said suspension frame between a first position where the coin inlet on said control board being retained in alignment with said coin passage way to guide the inserted coin from said coin passage way to said coin box, and a second position where the coin inlet on said control board being moved away from said coin passage way, enabling the inserted coin to be stopped at one end of said sliding track by said control board;a switching board pivoted to said base frame adjacent to said suspension frame, said switch board comprising a plank, a stop plate transversely raised from a top side of said plank on the middle, a mounting plate raised from a bottom side of said plank on the middle and pivoted to said base frame, the stop plate of said switching board being stopped against the stop rod of said suspension frame when said push button is off, enabling said control board of said suspension frame to be retained in said second position, said plank being forced by said push button to disengage said stop plate of said switching frame from said stop rod of said suspension frame when said push button is depressed, enabling said control board to be moved with said suspension frame to said first position.