| 摘要 |
A manually operated mechanism for relatively engaging and locking two structural members in a number of positions. One member includes a shroud slideably surrounding a second structural member. The shroud has a locking device for selectively engaging any of a plurality of notches on a notched member that is rigidly affixed to the structural member. Another member, such as an armrest, may be affixed to the telescoping shroud.
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