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2. 发明公开

EP3203952A1 PASSIVER GEHÖRSCHUTZ, DAMIT AUSGESTATTETES OHRPASSSTÜCK UND VERFAHREN ZU DESSEN HERSTELLUNG 有权转让
标题翻译： PASSIVERGEHÖRSCHUTZ，DAMIT AUSGESTATTETESOHRPASSSTÜCKUND VERFAHREN ZU DESSEN HERSTELLUNG
公开(公告)号：EP3203952A1
公开(公告)日：2017-08-16
申请号：EP15775226.2
申请日：2015-10-07
申请人： Bachmaier GmbH & Co. Kg
发明人： KUBICKE, Fabian
IPC分类号： A61F11/08
CPC分类号： A61F11/08
摘要： Described here is a hearing protector for use in the auditory canal of an ear, in particular for use in an ear mould, comprising a rotationally symmetric filter housing assembled from a plurality of housing parts (22, 24), which includes, fixed in place in the interior thereof, a gauze (28) is located behind a sound inlet opening (26) with a predetermined air permeability and, at a parallel distance (AP) thereto, a membrane foil (30), behind which there is a resonance volume (32) which communicates with a sound outlet opening (34). In order to improve the accuracy of the positional arrangement of the functional components in the housing of the hearing protector, a filter housing part behind the sound inlet opening (26) forms an inner shoulder (36), which merges into a circular cylindrical wall portion (38) directed away therefrom. For the purposes of affixing the membrane foil (30), the wall portion receives an assembly ring (40) supported at the inner shoulder (36) in an interlocking and/or frictional and/or cohesive manner, said assembly ring in turn forming a radially aligned assembly inner shoulder (42) as a ring-shaped support for the membrane foil (30) affixed by a pressed-in holding ring (44). Alternatively, or in combination with this embodiment, at least that filter housing part (24), which carries the gauze (28) is embodied as a plastics injection moulded part, and the gauze (28) is insert moulded on the edge side and in a circumferential manner by the filter housing (22).
摘要翻译：这里描述了一种用于耳朵的耳道中的听力保护器，特别是用于耳模，包括由多个壳体部分（22,24）组装而成的旋转对称的过滤器壳体，所述多个壳体部分（22,24）包括固定在适当位置在其内部，纱布（28）位于具有预定透气性的声音入口开口（26）的后面并且在与其平行的距离（AP）处具有薄膜箔（30），在薄膜箔（30）之后存在共振体积（32），其与声音出口开口（34）连通。为了提高听力保护器的壳体中的功能部件的位置布置的精确度，在声音入口开口（26）后面的过滤器壳体部分形成内肩部（36），该内肩部（36）合并成圆形的圆柱形壁部分（38）从其指向。为了固定膜片（30），壁部分以互锁和/或摩擦和/或内聚的方式接纳支撑在内肩部（36）处的组装环（40），所述组装环继而形成径向对齐的组件内肩（42）作为用于通过压入保持环（44）固定的薄膜箔（30）的环形支撑件。替代地或结合该实施例，至少承载纱布（28）的过滤器壳体部件（24）被实施为塑料注射成型部件，并且纱布（28）在边缘侧被插入模制并且在由过滤器壳体（22）周向地构成。

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