US 12,425,061 B2
Waterproof structure for communication device, communication unit, and working machine
Yasuhiko Arai, Sakai (JP); Keisuke Miura, Sakai (JP); and Tokio Sakata, Sakai (JP)
Assigned to KUBOTA CORPORATION, Osaka (JP)
Filed by KUBOTA CORPORATION, Osaka (JP)
Filed on Sep. 7, 2022, as Appl. No. 17/939,476.
Application 17/939,476 is a continuation of application No. PCT/JP2021/011129, filed on Mar. 18, 2021.
Claims priority of application No. 2020-049480 (JP), filed on Mar. 19, 2020; and application No. 2020-049481 (JP), filed on Mar. 19, 2020.
Prior Publication US 2023/0024613 A1, Jan. 26, 2023
Int. Cl. H04B 1/38 (2015.01); E02F 9/08 (2006.01); H04B 1/03 (2006.01); H04B 1/3822 (2015.01); H05K 5/02 (2006.01)
CPC H04B 1/3822 (2013.01) [E02F 9/0858 (2013.01); H04B 1/03 (2013.01); H05K 5/0214 (2022.08)] 9 Claims
OG exemplary drawing
 
1. A waterproof structure for a communication device, the communication device comprising a casing that houses an electronic substrate and has an air hole, the waterproof structure comprising:
a plate member facing the casing and attached to the casing such that the plate member covers the air hole; and
a sealing member interposed between the plate member and the casing to prevent ingress of water into the air hole through a gap between the plate member and the casing, wherein:
the sealing member includes a groove portion, one of opposite ends of the groove portion in a longitudinal direction being in communication with the air hole; and
the groove portion includes, at the other of the opposite ends thereof in the longitudinal direction, an open portion with an opening facing downward.