公开(公告)号：US10979798B2

公开(公告)日：2021-04-13

申请号：US16717464

申请日：2019-12-17

Applicant: GN Audio A/S

Inventor： Andy Luo ,  Mads Schenstrøm Stefansen ,  Libra Su ,  Silas Zhang

IPC: H04R1/10

Abstract: A headphone (1) comprising a first earphone (2) and a headband (3) to be arranged around the head of a user. The headband (3) comprises a first headband part (4) and a second headband part (5), that are telescopically connected, so that the length of the headband (3) can be adjusted in a longitudinal direction (Y). The first headband part (4) comprises an inner wall (9) with a protruding longitudinal first rib (8), which first rib (8) has a first rib sidewall (35) with a first rib protrusion (33) and a second opposite rib sidewall (36) with a second rib protrusion (34). The second headband part (5) comprises an outer wall (7) with a first longitudinal groove (6), which first groove (6) has first groove sidewall (20) with a first groove protrusion (22) and a second opposite groove sidewall (21) with a second groove protrusion (23). The first rib (8) is received in the first groove (6), and the first and second rib protrusions (33, 34) and the first and second groove protrusions (22, 23) defines small well-defined contact areas between the rib sidewalls (35, 36) and the groove sidewalls (20, 21).

公开(公告)号：US10972828B2

公开(公告)日：2021-04-06

申请号：US16717567

申请日：2019-12-17

Applicant: GN Audio A/S

Inventor： Andy Luo ,  Mads Schenstrøm Stefansen ,  Libra Su ,  Silas Zhang

IPC: H04R1/10

Abstract: A headphone (1) comprising a first earphone (2) and a headband (3) to be arranged around the head of a user The headband (3) comprises a first headband part (4) and a second headband part (5), which are slidably connected to each other, so that the length of the headband (3) can be adjusted in a longitudinal direction (Y). There is provided a controlled friction mechanism, that controls the friction between the first headband part (4) and the second headband part (5). The friction mechanism comprises a first cantilever (8) comprised by the second headband part (5) and a first friction element (11) of elastomeric abutment material, which is attached to the first cantilever (8) and which due to elastic deformation of the first cantilever (8) abuts and exerts a force against a first contact area of the first headband part (4).