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US 2012/0055639 A1Published application
Screen unit
AssigneeSeiko Epson Corporation
InventorMasato Maruyama
Life of this patent
Estimating the term…
Abstract
A screen unit includes: a first frame and a second frame which extend in parallel with each other; a first roll provided in the first frame in such a manner as to be freely rotatable and having an urging force in the winding direction of the first roll; a second roll provided in the second frame in such a manner as to be freely rotatable and having an urging force in the winding direction of the second roll; and a screen which has one end fixed to the first roll and the other end fixed to the second roll, and is wound around the first roll and the second roll by the urging forces.
Claims4
A screen unit comprising:
- a first frame and a second frame which extend in parallel with each other;
- a first roll provided in the first frame in such a manner as to be freely rotatable and having an urging force in the winding direction of the first roll;
- a second roll provided in the second frame in such a manner as to be freely rotatable and having an urging force in the winding direction of the second roll;
- and
- a screen which has one end fixed to the first roll and the other end fixed to the second roll.
2 more elements
Dependencies are inferred from the claim text.