Mechanical stretching device for multifunctional convertible sofa
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United States of America Patent
Stats
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Sep 30, 2014
Grant Date -
Mar 8, 2012
app pub date -
Oct 25, 2010
filing date -
Nov 19, 2009
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A mechanical stretching device includes first, second, third and fourth foot levers, a side plate, first, second, third, fourth, fifth and sixth connecting rods, a first support member, a second support member, a linkage member, a connecting member, a rotating shaft transmission member, a spring, and a bottom connecting rod. A first limiting surface and a second limiting surface are disposed on the second foot lever, a third limiting surface is disposed on the fourth foot lever, a fourth limiting surface and a fifth limiting surface are disposed on the side plate, a sixth limiting surface and a seventh limiting surface are disposed on the second connecting rod, an eighth limiting surface is disposed on the sixth connecting rod, a ninth limiting surface is disposed on the first support member, and a tenth limiting surface is disposed on the linkage member.
First Claim
Family
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Cited Art Landscape
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