US 12,291,907 B2
Living hinge formed by compressed material
Kenji Ishii, Nagoya (JP); Kazuo Waki, Nagoya (JP); and Sho Nakajima, Yamato (JP)
Assigned to KYORAKU CO., LTD., Kyoto (JP)
Appl. No. 16/759,845
Filed by KYORAKU CO., LTD., Kyoto (JP)
PCT Filed Jan. 29, 2019, PCT No. PCT/JP2019/002894
§ 371(c)(1), (2) Date Apr. 28, 2020,
PCT Pub. No. WO2019/151213, PCT Pub. Date Aug. 8, 2019.
Claims priority of application No. 2018-013874 (JP), filed on Jan. 30, 2018; and application No. 2019-009941 (JP), filed on Jan. 24, 2019.
Prior Publication US 2021/0180377 A1, Jun. 17, 2021
Int. Cl. E05D 1/02 (2006.01); B29C 48/00 (2019.01); B29C 48/08 (2019.01); B29K 105/06 (2006.01); B29L 31/22 (2006.01)
CPC E05D 1/02 (2013.01) [B29C 48/0011 (2019.02); B29C 48/08 (2019.02); B29K 2105/06 (2013.01); B29L 2031/22 (2013.01); E05Y 2800/27 (2013.01); E05Y 2800/455 (2013.01); E05Y 2800/68 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A structure body having a resin body, the resin body comprising:
a first main body portion, a second main body portion, and a hinge portion
wherein
the first main body portion and the second main body portion are connected at the hinge portion with each other so as to be rotatable with respect to each other, the first main body portion and the second main body portion comprising a front wall and a back wall facing each other with a gap, and a surrounding wall connecting surroundings of the front wall and the back wall, wherein
the hinge portion comprises a first thin portion, a second thin portion, and a thick portion, wherein the thick portion is a portion being larger in wall thickness than the first thin portion and the second thin portion;
the first thin portion, the second thin portion, and the thick portion elongate in a longitudinal direction of the hinge portion;
the thick portion is sandwiched by the first thin portion and the second thin portion in a width direction of the hinge portion; and
a wall thicknesses of the first thin portion, the second thin portion, and the thick portion are each smaller than a sum of wall thickness of the front wall and the back wall.