Abstract: A collapsible cane having a series of interfitting smaller and larger telescoping sections which are interlocked against collapse, when extended, is disclosed. The smaller interfitting telescoping section includes an internal expansion device activated by relative rotary movement between adjacent larger and smaller interfitting telescoping sections for engagement with an inner wall of the larger interfitting telescoping section. The internal expansion device operates against a circumferential depression provided in the larger interfitting telescoping sections enabling the internal expansion device to expand against the internal wall of the larger interfitting telescoping section.

Abstract: A collapsible cae or the like is disclosed as having a series of interfitting telescoping sections which are interlocked together when collapsed and interlocked against collapse when extended. The collapsible cane includes first interlocking elements for externally interlocking the interfitting telescoping sections together as a unit when collapsed, and also capable of being released, by hand pressure, to permit elongated extension of the interfitting telescoping sections. When extended, second interlocking elements are provided for internally interlocking adjacent telescoping sections together against collapse. The second interlocking elements may also be deactivated to permit collapse and telescoping of adjacent interfitting telescoping sections relative to one another for compact storage, when collapsed, and for subsequent re-engagement with the first interlocking elements to hold the telescoped interfitting sections together as a unit.