公开(公告)号：US20230156384A1

公开(公告)日：2023-05-18

申请号：US17977288

申请日：2022-10-31

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hiroyuki MORIMOTO ,  Yuuki IZUMI

IPC: H04R1/02

CPC classification number: H04R1/025 ,  H04R2499/13 ,  H04R2201/021 ,  H04R2400/11

Abstract: A loudspeaker to be attached to an attachment member, the loudspeaker including: a temporary joint pin which is inserted into a temporary joint hole and temporarily holds the loudspeaker in a suspended state. The temporary joint pin includes a rod-like portion backwardly projects from a rear end surface of a frame; a tilted surface portion which is part of an inner circumferential surface of a circumferential surface of the rod-like portion to be brought into contact with the temporary joint hole, and is tilted to become closer to the central axis of the rod-like portion from a base end toward a distal end of the rod-like portion in a direction of projection; and a flanged portion which is adjacent to the tilted surface portion at the distal end of the rod-like portion, protrudes in a direction crossing the direction of projection, and catches onto the attachment member.

公开(公告)号：US20230345179A1

公开(公告)日：2023-10-26

申请号：US18133772

申请日：2023-04-12

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yoshitaka KAWASHIMA ,  Yuki ISHII ,  Yuuki IZUMI

IPC: H04R7/12 ,  H04R9/02 ,  H04R9/06

CPC classification number: H04R7/122 ,  H04R9/025 ,  H04R9/06

Abstract: A sub cone for use in a loudspeaker includes a slanted portion that has an aperture area that increases toward an emission direction in which sound is emitted from the loudspeaker and a rim portion that is annular in shape and extends linearly outward from an edge of a distal end of the slanted portion in a direction orthogonal to the emission direction.