| 摘要 |
A support ( 1 ), includes at least one telescopic leg ( 2 a), comprising a first tubular segment ( 4 ), a second tubular segment ( 5 ), a third tubular segment ( 6 ) first segment, first locking means ( 9 ) arranged between the first and the second segment, second locking means ( 10 a) arranged between the second and third segment, and also first ( 90 ) and second ( 110 a) release means capable of unlocking the sliding movement in the insertion direction of the second and third segment respectively in the first and second segment. The second release means comprise an actuating member ( 11 ) axially slidable on the outside of the second and third segment, and the first release means are dimensioned such as to locate the actuating member and to displace it axially into the operating position when the second segment is inserted axially into the first segment.
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