| 摘要 |
PCT No. PCT/AU87/00289 Sec. 371 Date Mar. 1, 1989 Sec. 102(e) Date Mar. 1, 1989 PCT Filed Aug. 27, 1987 PCT Pub. No. WO88/01481 PCT Pub. Date Mar. 10, 1988.A keyboard support apparatus includes a first bracket and a second bracket interconnected by first, second and third elongate members. The first and second elongate members are pivotally attached by a first pivot pin to the first bracket. The first elongate member is also pivotally attached by a second pivot pin to the second bracket. The third elongate member is pivotally attached by a third pivot pin to the first bracket, while the second and third elongate members cooperate with a further pivot pin on the second bracket to releasably engage the second and third elongate members. The first and second brackets are connected to a supporting surface and a keyboard, respectively, and the elongate members are movable in substantially the same plane when released from the second bracket.
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