US 12,444,834 B2
Antenna attachment and antenna device
Yutaka Hatakeyama, Katagami (JP); Ryutaro Miura, Katagami (JP); Satoshi Sato, Katagami (JP); Hisashi Takizawa, Katagami (JP); Yoshifumi Kishiue, Katagami (JP); Shinobu Wakahara, Toyota (JP); and Takuto Nakamura, Kasugai (JP)
Assigned to MITSUMI ELECTRIC CO., LTD., Tokyo (JP); and TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed by Yutaka Hatakeyama, Katagami (JP); Ryutaro Miura, Katagami (JP); Satoshi Sato, Katagami (JP); Hisashi Takizawa, Katagami (JP); Yoshifumi Kishiue, Katagami (JP); Shinobu Wakahara, Toyota (JP); and Takuto Nakamura, Kasugai (JP)
Filed on Apr. 28, 2023, as Appl. No. 18/308,729.
Claims priority of application No. 2022-074024 (JP), filed on Apr. 28, 2022.
Prior Publication US 2024/0021978 A1, Jan. 18, 2024
Int. Cl. H01Q 1/32 (2006.01); H01Q 9/04 (2006.01)
CPC H01Q 1/3275 (2013.01) [H01Q 9/0407 (2013.01)] 7 Claims
OG exemplary drawing
 
1. An antenna attachment comprising:
a male screw part to be screwed with an antenna main body of an antenna device to be installed on a moving body, the male screw part including a head portion and a thread portion, and an intermediate portion that is provided between the head portion and the thread portion and has a cross section smaller than cross sections of the head portion and the thread portion; and
a washer including a hole portion that allows passage of part of the male screw part, wherein:
the hole portion has a shape in which a portion of each of a first hole and a second hole having sizes different from each other is overlapped on a same plane,
the first hole has a shape that does not allow passage of the head portion and the thread portion and allows passage of the intermediate portion, and
the second hole has a shape that does not allow passage of the head portion and allows passage of the thread portion and the intermediate portion.