TENSION DEVICE AND HEAT EXCHANGE FIN MANUFACTURING MACHINE
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United States of America Patent
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Issued Date -
Sep 24, 2009
app pub date -
Jan 7, 2009
filing date -
Mar 19, 2008
priority date (Note) -
Abandoned
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Abstract
The tension device comprises: a feeding unit for feeding a band-shaped metal plate to a press unit; and a holding unit for applying tension to the band-shaped metal plate. The feeding unit is constituted by a moving member and a feeding pin. The front end of the feeding pin has a slope face so as to engage with a collared through-hole of the band-shaped metal plate when the moving member moves in a feeding direction of the band-shaped metal plate and so as to disengage therefrom when the moving member stops and moves in the reverse direction. The holding unit has a holding member, which holds and applies prescribed tension to the band-shaped metal plate when the moving member stops and which releases the band-shaped metal plate when the moving member starts to move in the feeding direction.
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