Height adjustment arrangement for an ear cup in a hearing protector unit

Height adjustment arrangement (100) for an ear cup (10) in a hearing protector unit (1), the height adjustment arrangement comprising

• an elongated member (130) adapted to be coupled in a first end (131) to a head mounting portion (30) of a hearing protector unit, and
• a tubular holding member (110) connected to the elongated member, the tubular holding member being adapted to be coupled in a first end (113) to an ear cup (10), wherein the holding member provides a substantially hollow interior (111) for receiving a second end (132) of the elongated member (130), wherein a relative movement between the elongated member (130) and the holding member (110) provides a height adjustment of an ear cup (10) relative to a head mounting portion (30), and
• a clamping member (120), wherein the clamping member (120) is arranged to be moved from an unlocked position, in which position relative movement between the elongated member (130) and the holding member (110) is enabled, to a locking position, in which position relative movement between the elongated member (130) and the holding member (110) is prevented, wherein the clamping member (120) is adapted to, when in the locking position, be attached to the holding member (110) such that the clamping member presses a second end (112) of the holding member towards the elongated member (130) to prevent relative movement between the elongated member and the holding member,
• characterized in that
• the holding member comprises a first locking member (114), wherein the second end (112) of the holding member (110) is provided with two flanges (115a, 115b) tapering in a direction towards the clamping member (120) and wherein the first locking member (114) and the flanges are axially separated,
• the clamping member comprises a hollow interior (121) with a tapering part (123) which tapers in a direction away from the holding member and a second locking member (122), wherein the tapering part and the second locking member are axially separated,
• wherein, when the clamping member (120) is moved from said unlocked position to said locking position, the second locking member (122) is arranged to integrate with the first locking member (114) and the tapering part (123) is arranged to press the flanges (115a, 115b) towards the elongated member (130).