| 摘要 |
PURPOSE: To provide an operation apparatus for newly invented game machines with excellent operationability and operational feeling. CONSTITUTION: A housing 1 is composed by dividing into a left case 2 and a right case 3 and a cross shape key top 5 and other left side operation keys 6 as a first operational means are set on the face of the left case 2 and on the other hand, key switches 7a-7d and right side operation keys 8 as a second operational means are set on the face of the right case 3. The right case 3 is fitted in a relay ring 9 fixed in the left case 2 in the way the case 3 can rotate freely and at the same time a joining ring 10 geared with a rotary axis 21a of a rotary volume 21 is fixed in the inside of the right case, so that at the time when the left case 2 and the right case 3 are operated to rotate relatively, the rotary volume 21 as a third operational means can start driving. |
