| 摘要 |
PROBLEM TO BE SOLVED: To reduce the area that a keyboard occupies by standing the keyboard on a desk when the keyboard is not used by fitting a folding type leg to the reverse side of the keyboard. SOLUTION: Hinges 12 and 13 having bearing holes are provided on one flank of a U-shaped mount 11 and one end of the hinge 13 is extended to form a stopper 16; and one-end sides of shafts 14 at both the end parts of a rod type leg 17 are inserted into a spring 15 and the hinge 12 and the other-end sides are inserted into the hinge 13. One end of the spring 15 comes into contact with the mount 11 and the other comes into contact with the leg 17; and a resilience is applied to their contacts.
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