| 摘要 |
PROBLEM TO BE SOLVED: To provide a keyboard device capable of very inexpensively manufacturing chassis different in the number of key, thereby drastically reducing its manufacture cost and enhancing its assembly precision. SOLUTION: This device 1 is provide with a chassis 2, keys 3 which are arrayed in the right-left direction on the chassis 2 and supported rotatably on the chassis 2, angle parts 13 (13a to 13d) which are fitted to the chassis 3 while extending in the right-left direction and reinforce the chassis 2, and ribs 26 for reinforcement which extend in the front-rear direction and are fitted between the angle parts 13. Or the device is equipped with the chassis 2 and keys 3 which are arranged in the right-left direction on the chassis 2 and supported rotatably on the chassis 2, and the chassis 2 is cut along a specific front-rear cutting line to support a specific number of the keys 3 less than the keys 3. |
