Sewing machine with an adjusting structure capable of controlling a swing center of a swing arm
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United States of America Patent
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Apr 22, 2014
Grant Date -
Aug 23, 2012
app pub date -
Feb 17, 2011
filing date -
Feb 17, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A sewing machine with an adjusting structure capable of controlling a swing center of a swing arm includes an adjusting apparatus and corresponding structures cooperating with the adjusting apparatus. The adjusting apparatus is provided on the pivotal portion with a sliding groove and a sliding block that can horizontally slide with respect to each other. Between the sliding groove and the sliding block are further provided an adjusting bolt and an elastic element. By rotating the adjusting bolt, the relative position between the swinging center around which the whole swing arm pivots and the whole structure of the swing arm can be changed in the horizontal direction accurately and conveniently, thus assuredly adjusting the start point of the travel of the presser foot, achieving the objective of accursedly adjusting position of the travel sensing apparatus.
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Family
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Cited Art Landscape
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