公开(公告)号：WO2022208261A1

公开(公告)日：2022-10-06

申请号：PCT/IB2022/052753

申请日：2022-03-25

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： KÅREKULL, Oscar L. ,  HJERTBERG, Tim S.

IPC: A61F11/14 ,  A61F11/145

Abstract: In a first aspect, the present disclosure relates to a hearing protector 10 including two earmuffs 12A, 12B each with a cushion 16A, 16B, a cup 14A, 14B and a carrier 24A, 24B. The hearing protector 10 further includes a headband 18, or alternatively two helmet mounts, with two earmuff attachment means 22A, 22B as well as a spring element 30A, 30B. The carrier 24A, 24B and the cushion 16A, 16B form a first mass-spring system. The cup 14A, 14B and the spring element 30A, 30B form a second mass spring system. The spring element 30A, 30B is configured and arranged such that the cup 14A, 14B and the carrier 24A, 24B are mechanically decoupled from each other. The advantage of such a hearing protector 10 is that the hearing protector 10 can be designed such that the aspects of comfort and noise attenuation can be addressed more independent of each other. Also, the force or pressure applied to the carrier by the headband 18, or alternatively by the helmet mounts, and thereby to the cushion 16A, 16B is not influencing the spring element 30A, 30B so as to design such a hearing protector 10 in a way that the properties such as noise attenuation and wearing comfort are not in conflict with each other. In a second aspect, the present disclosure relates to a method of retrofitting a hearing protector with a spring element 30A, 30B and a carrier 24A, 24B thereby providing the advantages and effects as laid out above.

公开(公告)号：WO2023275570A1

公开(公告)日：2023-01-05

申请号：PCT/GB2022/051713

申请日：2022-07-04

Applicant: CLUISTROM3D LIMITED

Inventor： MCINTOSH, Neil

IPC: H04R1/10 ,  A61F11/14 ,  H04R5/033 ,  A61F11/145 ,  H04R1/1008 ,  H04R1/1041 ,  H04R1/1083 ,  H04R1/1091 ,  H04R2201/10 ,  H04R2420/07 ,  H04R2460/15

Abstract: A seal verification module for a headset ear cup, a headset comprising such a module (e.g. the module being integral with, recessed into or mounted in/on the ear cup), a method for retrofitting the seal verification module to a headset, and a method for verifying that a headset comprising an ear cup is correctly situated on a user's head such that the ear cup forms an acoustic seal around the user's ear. The seal verification module comprising an indicator configured to provide an indication in response to being activated; and a pressure differential detector configured to detect a pressure differential between an internal side of the seal verification module and an external side of the seal verification module, and to activate the indicator in response to the detected pressure differential reaching or exceeding a predetermined pressure differential associated with verifying the headset ear cup being correctly situated.

公开(公告)号：WO2023057289A1

公开(公告)日：2023-04-13

申请号：PCT/EP2022/077052

申请日：2022-09-28

Applicant: ODM GMBH

Inventor： KÜHN, Christopher ,  PFLÜGER, David

IPC: H04R1/10 ,  A61F11/14 ,  A61F11/145 ,  H04R1/1008 ,  H04R1/1083 ,  H04R2201/107 ,  H04R2201/109 ,  H04R2420/09 ,  H04R2460/01

Abstract: Die Erfindung bezieht sich auf eine Hörmuschel (1) für einen Kopfhörer (10) mit einem Gehäuse (1.1) zur Aufnahme von elektroakustischen Bauteilen und von Schalldämpfungsmaterial, wobei das Gehäuse (1.1) ein Gehäusegrundkörper (2) zur Aufnahme von elektroakustischen Bauteilen und ein Schalenhauptmodul (3) zur Aufnahme eines Schalldämpfungsmaterials aufirueist, wobei das Schalenhauptmodul (3) an dem Gehäusegrundkörper (2) mechanisch angeschlossen ist, wobei a) der Gehäusegrundkörper (2) modular ergänzbar ist und ein erstes Gehäusemodul (2.1) sowie ein zweites Gehäusemodul (2.2) vorgesehen sind, wobei das erste Gehäusemodul (2.1) und das zweite Gehäusemodul (2.2) jeweils alternativ als abweichende Ausbaustufe an den Gehäusegrundkörper (2) mechanisch und elektrisch anschließbar ist und/oder b) dass das Gehäuse (1.1) zur Bereitstellung verschiedener Ausbaustufen das Schalenhauptmodul (3) aufweist, das b1 ) modular austauschbar ist und mindestens ein erstes Schalenaustauschmodul (3.1) vorgesehen ist, das alternativ zu dem Schalenhauptmodul (3) an den Gehäusegrundkörper (2) mechanisch anschließbar ist und/oder; b2) modular ergänzbar ist und mindestens ein erstes Schalenaustauschmodul (3.1) vorgesehen ist, wobei das erste Schalenaustauschmodul (3.1) an das Schalenhauptmodul (3) mechanisch anschließbar ist.

公开(公告)号：WO2021250518A1

公开(公告)日：2021-12-16

申请号：PCT/IB2021/054904

申请日：2021-06-04

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： KÅREKULL, Oscar L.

IPC: H04R1/08 ,  H04R1/10 ,  A61F11/14 ,  H04R1/32 ,  A61F11/145 ,  H04R1/086 ,  H04R1/1008 ,  H04R1/326 ,  H04R2410/07

Abstract: A hearing protection device is presented. The hearing protection device includes a first and second earmuffs (202, 260, 310) connected by a connector (270, 320). The first and second earmuffs are configured to provide level dependent hearing protection. The first earmuff includes a microphone element (204, 330) having a microphone entry (264), positioned on an exterior of a housing of the first earmuff (260), the microphone element (204, 330) being configured to receive an ambient sound. The first earmuff also includes a processor configured to process the ambient sound using a level dependent function. The first earmuff also includes a speaker configured to broadcast the processed ambient sound in an interior of the first earmuff. The first earmuff also includes an asymmetrical windscreen (262) configured to enclose the microphone element. The windscreen is coupled to the housing of the first earmuff.