| 摘要 |
PCT No. PCT/AU89/00370 Sec. 371 Date Feb. 25, 1991 Sec. 102(e) Date Feb. 25, 1991 PCT Filed Aug. 31, 1989 PCT Pub. No. WO90/02236 PCT Pub. Date Mar. 8, 1990.Hinge device (10, 10') having a tubular member (12, 12') and an elongate member (14, 114'). The elongate member (14, 14') is slideable in the tubular member (12, 12'). The elongate member (14, 14') comprises a first portion (28, 28') and a second portion (16, 16'). When the first portion (28, 28') is positioned inside the tubular member (12, 12') the elongate member (14, 14') is swivelable about its longitudinal axis (24, 24'). When the second portion (16, 16') is positioned inside the tubular member (12, 12') the elongate member (14, 14') is not swivelable about its longitudinal axis (24, 24'). |
