US 10,889,131 B2
Irradiation device, expansion device, and shaping system
Shinji Nagumo, Akishima (JP)
Assigned to CASIO COMPUTER CO., LTD., Tokyo (JP)
Filed by CASIO COMPUTER CO., LTD., Tokyo (JP)
Filed on Feb. 8, 2019, as Appl. No. 16/271,157.
Claims priority of application No. 2018-025001 (JP), filed on Feb. 15, 2018; and application No. 2019-018187 (JP), filed on Feb. 4, 2019.
Prior Publication US 2019/0248160 A1, Aug. 15, 2019
Int. Cl. B41J 11/00 (2006.01); B29C 64/264 (2017.01); B41M 3/06 (2006.01); B41M 3/16 (2006.01); B41M 5/26 (2006.01); B41M 7/00 (2006.01)
CPC B41J 11/002 (2013.01) [B29C 64/264 (2017.08); B41J 11/0015 (2013.01); B41M 3/06 (2013.01); B41M 3/16 (2013.01); B41M 5/26 (2013.01); B41M 7/009 (2013.01); B41M 7/0081 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An expansion device, comprising:
a tray on which a thermally expandable sheet is disposed;
an irradiator configured to irradiate the thermally expandable sheet disposed on the tray with electromagnetic waves; and
a driver that, while the irradiator is being caused to emit the electromagnetic waves, moves the irradiator along the thermally expandable sheet disposed on the tray, thereby causing the thermally expandable sheet to distend; wherein
the irradiator includes a lamp guard provided with a plurality of openings, and
all intersections formed by outer shapes of the plurality of openings do not overlap as viewed in an irradiator movement direction that is a direction of movement of the irradiator caused by the driver.