초록 ▼

A spring loaded button, positioned interiorly of an inner tube, protrudes through a hole in the inner tube into latched relation with a preselected one of a series of longitudinally spaced holes in a telescoped outer tube. The button is manually depressed inwardly of the outer tube when the relative

A spring loaded button, positioned interiorly of an inner tube, protrudes through a hole in the inner tube into latched relation with a preselected one of a series of longitudinally spaced holes in a telescoped outer tube. The button is manually depressed inwardly of the outer tube when the relative position of the inner and outer tubes is to be changed, the button thereafter being released to spring out through another hole in the outer tube to hold the tubes in a different relative position. A catch lip is mounted on the outer end of the button. The catch lip is sized to engage the edge of the outer tube\s hole in the event of a slight longitudinal and/or oscillatory movement between tubes to tend to impede or hinder premature and undesired unlatching during normal use of the tubes. But the catch lip is not sized to prevent manual unlatching movement of the button against the spring bias when a position change between tubes is desired.

대표청구항 ▼

A button latch assembly for tubes telescoped one within the other, said latch functioning to permit selectively adjustable positioning of one tube relative to the other, said assembly comprising inner and outer tubes, said tubes being telescopable one within the other, a hole in said inner tube\s wa

A button latch assembly for tubes telescoped one within the other, said latch functioning to permit selectively adjustable positioning of one tube relative to the other, said assembly comprising inner and outer tubes, said tubes being telescopable one within the other, a hole in said inner tube\s wall, a plurality of holes in said outer tube\s wall, the selectively adjustable telescopic positioning of said inner tube relative to said outer tube being accomplished by axial alignment of said inner tube hole with any one of said outer tube holes, a tapered button positioned within said inner tube hole for axial movement relative to the axis of that hole, said button having an inner end located within said inner tube\s interior that prevents passage of said button through said inner tube\s hole, said button having a body that tapers from said button\s inner end to said button\s outer end so that said button\s tapered body extends through said inner tube\s hole and a selected one of said outer tube\s holes, and said button\s outer end being located exteriorly of said outer tube with said button\s tapered surface engaging said selected one outer tube hole for latching said inner tube and said outer tube in desired telescopic position, a spring connected with said button, said spring continuously biasing said button outwardly of said inner tube\s hole, but permitting said button to be manually biased inwardly of said selected one of said outer tube\s holes for repositioning said outer tube relative to said inner tube when desired, and a catch lip on said button\s outer end, said catch lip extending radially outward from said button\s longitudinal axis, said catch lip being sized to engage said selected one of said outer tube\s holes to impede undesired unlatching movement of said button through said outer tube\s hole in response to at least one of longitudinal and oscillatory movement of said outer tube relative to said inner tube, but said catch lip not being sized to prevent manual unlatching movement of said button from said outer tube when desired.