Abstract: A coin collecting mechanism with top coin slot and coin return function is provided. The coin collecting mechanism has a main support onto which both a coin return mechanism and a coin comparison mechanism are mounted. The coin comparison mechanism is in a vertical position but inclined backward by about 15 degrees. The coin return mechanism includes a hood defining a downward opened chamber for the coin comparison mechanism to move up and down therein. The hood is provided at a lower front end with a horizontal rail inclined backward by about 15 degrees for catching an inserted coin vertically falling from the coin slot and guiding the coin into the coin comparison mechanism. The hood also has a spring-loaded member mounted thereto for pushing a jammed coin out of the inclined rail. A locating clamp is adjustably mounted on the hood for easily adjusting a size of the coin slot.

Abstract: Disclosed is a comparative type detector for a coin-collecting mechanism. The comparative type detector includes a movable slot way portion having parallelly arranged and downward open first and second slot ways, as well as a main slide way and a secondary slide way located below and aligned with the first and the second slot ways, respectively. The second slot way and the secondary slide way together define a space for positioning a sample coin therein, and the first slot way and the main slide way together define a passage for a coin inserted into the coin-collecting mechanism to pass therethrough. Electric eyes are fixedly mounted at front and rear ends of the first slot way respectively slightly higher and lower than a reference line which is defined by a line parallel to a bottom surface of the secondary slide way and tangent to a top point of the sample coin.

Abstract: Disclosed is an electronic coin-collecting mechanism including a vertically movable sensor to examine qualified coins inserted into the mechanism so as to actuate a game on which the mechanism is mounted. The sensor consists of a first and a second oscillating coils and an inductive coil sandwiched between them, forming a first slot way and a second slot way at a lower portion of the sensor. The sensor can be set or reset to examine selected coin specifications simply by lifting it to allow a selected coin to be put into the second slot way and then letting down the sensor again. Therefore, the electronic coin-collecting mechanism is conveniently-applicable to any type of coin and may effectively detect any disqualified coin and discharges the same.