| 摘要 |
<p>PROBLEM TO BE SOLVED: To simplify the structure by selectively driving a plurality of gear transmission based on rotary directions of a reversible motor and either rotating or moving a turn table up and down and to lower the cost by limiting the number of motors to be employed to only one. SOLUTION: When a motor shaft of a reversible motor 111 is rotated in one direction in the situation in which an elevating member 123 of a transfer means 109 is moved down and a turn table 9 is moved down, the power of the motor 111 is successively transmitted to second and third gears 133, 137 through first gears 131 fixed in the motor shaft and the means 109 is driven. Then, a turn table shaft 70 and the table 9 move upward through fourth and fifth gears 143, 145. Also when the motor shaft of the motor 111 is rotated in the reverse direction, rotary gears 107 start driving, a shaft 70 is rotated, and the table 9 is rotated at prescribed revolving speed. In this way, based on the rotary directions of the motor 111, the shaft 70 is moved up and down and rotated through a plurality of gears, so that the structure is simplified and only one motor is sufficient and thus the cost can be lowered.</p> |
