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Dumb Mechanical Question: Spring button mechanism

By Ray Kalaher on 24 Sep 15:07 1 answer 959 views 0 comments

Sorry to ask a silly one, but I come more from the world of electronics and not mechanical. I am looking for the name of the mechanism that is commonly used on umbrellas, luggage pull handles, and walking canes to provide an adjustable handle length. It consists of a spring loaded button on an interior tube that engages into a machined hole on the outer tube. My google fu failed me. I am incorporating one into a design I have but I dont know how the spring and button attach to the interior tube. If anyone has a model I would appreciate it.

1 answer

  • Robert H.
    Robert H. about 2 years ago

    Those are often called "ball plungers" or "spring plungers"

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