초록 ▼

A positioning sleeve includes first and second surrounding portions adapted to surround outer and inner tube sections of a telescopic rod, respectively. The second surrounding portion has a plurality of angularly spaced-apart recessed parts and a plurality of compressible retaining units respectivel

A positioning sleeve includes first and second surrounding portions adapted to surround outer and inner tube sections of a telescopic rod, respectively. The second surrounding portion has a plurality of angularly spaced-apart recessed parts and a plurality of compressible retaining units respectively disposed in the recessed parts. Each retaining unit is connected to the corresponding recessed part, and has an engaging part projecting toward a through hole in the second surrounding portion, and a deformable space defined between the engaging part and the respective recessed part. The deformable space is deformed when the inner tube section is friction-fitted into the second surrounding portion and when the engaging part of each retaining unit abuts the inner tube section.

대표청구항 ▼

I claim: 1. A positioning sleeve for a telescopic rod, which has an outer tube section and an inner tube section connected telescopically to the outer tube section, said positioning sleeve comprising: a sleeve body having a first surrounding portion adapted to surround the outer tube section, and a

I claim: 1. A positioning sleeve for a telescopic rod, which has an outer tube section and an inner tube section connected telescopically to the outer tube section, said positioning sleeve comprising: a sleeve body having a first surrounding portion adapted to surround the outer tube section, and a second surrounding portion adapted to surround the inner tube section, said second surrounding portion having an inner peripheral wall defining a through hole, a plurality of angularly spaced-apart recessed parts that are recessed from said inner peripheral wall and that each has a recessed surface facing said through hole, and a plurality of compressible retaining units respectively disposed on said recessed surfaces of said recessed parts and adapted to abut the inner tube section, each of said retaining units being formed as a flexible plate and having an engaging part projecting toward said through hole, and a deformable space defined between said flexible plate and said recessed surface of a respective one of said recessed parts, said deformable space being deformed when the inner tube section is friction-fitted into said sleeve body and when said engaging part of each of said retaining units abuts the inner tube section, wherein said flexible plate is convex at said engaging part so as to project toward said through hole, and has two ends disposed on two opposite sides of said engaging part, said engaging part being disposed away from said recessed surface, said two ends extending to said recessed surface, one of said two ends being connected directly to said recessed surface, and the other one of said two ends being a movable free end that is disconnected from said recessed surface of the respective one of said recessed parts. 2. The positioning sleeve of claim 1, wherein said first surrounding portion has an inner peripheral wall with a diameter larger than a diameter of said inner peripheral wall of said second surrounding portion, said sleeve body further including a shoulder portion formed between said inner peripheral walls of said first and second surrounding portions. 3. The positioning sleeve of claim 1, wherein said two ends of said flexible plate are opposite to each other in an angular direction. 4. A positioning sleeve for a telescopic rod, which has an outer tube section and an inner tube section connected telescopically to the outer tube section, said positioning sleeve comprising: a sleeve body having a first surrounding portion adapted to surround the outer tube section, and a second surrounding portion adapted to surround an inner tube section, said second surrounding portion having an inner peripheral wall defining a through hole, a plurality of angularly spaced-apart recessed parts that are recessed from said inner peripheral wall and that each has a recessed surface facing said through hole, and a plurality of compressible retaining units respectively disposed on said recessed surfaces of said recessed parts and adapted to abut the inner tube section, each of said retaining units being formed as a flexible plate and having an engaging part projecting toward said through hole, and a deformable space defined between said flexible plate and said recessed surface of a respective one of said recessed parts, said deformable space being deformed when the inner tube section is friction-fitted into said sleeve body and when said engaging part of each of said retaining units abuts the inner tube section, wherein said flexible plate is convex at said engaging part so as to project toward said through hole, and has two ends disposed on two opposite sides of said engaging part, said engaging part being disposed away from said recessed surface, said two ends extending to said recessed surface, at least one of said two ends being connected directly to said recessed surface, and wherein said two ends of said flexible plate are opposite to each other in an axial direction.