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US 6,637,078 B2Granted
Slider for slide fastener with locking device
AssigneeYKK Corporation
InventorsKazuo Nagata, Koji Yamagishi
Life of this patent
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AssigneeYKK Corporation
InventorsKazuo Nagata, Koji Yamagishi
Estimating the term…
It relates to a slider for slider fastener with locking device where a sheet-like spring having a locking pawl at one end is fixed at the other end on a body. A bent portion of a spring portion of the fixed spring is exposed at a guide post, and a pull is mounted between the body and the spring so as to be raised or laid. A cam is provided on a lower face of an axle of the pull, and the axle slides on an inclined guide portion on the body. When the pull is laid forward of the body, a gap is formed between an edge of a through hole of a grip portion of the pull and the bent portion of the spring. Even if a load is applied to the pull in the horizontal direction or the vertical direction, this gap prevents the spring from plastic deformation, so that the spring is never plastically deformed under any use condition, thereby ensuring an excellent locking function.
A slider for slide fastener with locking device comprised of a body with an element guide groove, which is formed by connecting an upper wing plate having a pawl hole with a lower wing plate via a guide post, a sheet-like spring mounted on the upper wing plate and having a bending locking pawl at one end thereof, and a pull having a grip portion at one end thereof and an axle having a cam at the other end such that the axle is disposed between the upper wing plate and the sheet-like spring,
Dependencies are inferred from the claim text.