Mechanical stretching device of convertible sofa
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United States of America Patent
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-
Apr 19, 2016
Grant Date -
Jun 25, 2015
app pub date -
Dec 13, 2012
filing date -
May 21, 2012
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A mechanical stretching device of a convertible sofa includes left components, right components, a switch component, and a locking spring. The left components are fixedly connected to the right components by fixing components. The switch component is mounted on the left components or on the right components. The left components and the right components respectively include a foot plate, a first foot lever, a second foot lever, a third foot lever, a fourth foot lever, a fifth foot lever, a side plate, a rotating shaft transmission member, a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod, a fifth connecting rod, a sixth connecting rod, a back member, a calf plate, a first support member, a second support member, a linkage member, a protective member, a seahorse member, and a bottom foot.
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Family
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Cited Art Landscape
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