基本信息:
- 专利标题： Arbeitsgerät
- 专利标题（英）：Work device
- 申请号：EP15000308.5 申请日：2015-02-03
- 公开(公告)号：EP3053717A1 公开(公告)日：2016-08-10
- 发明人： Wolf, Günter , Hollmeier, Friedrich , Bläsi, Jörg , Techow, Thomas
- 申请人： Andreas Stihl AG & Co. KG
- 申请人地址： Badstrasse 115 71336 Waiblingen DE
- 专利权人： Andreas Stihl AG & Co. KG
- 当前专利权人： Andreas Stihl AG & Co. KG
- 当前专利权人地址： Badstrasse 115 71336 Waiblingen DE
- 代理机构： Reinhardt, Annette
- 主分类号： B27B17/00
- IPC分类号： B27B17/00 ; B25F5/02
A working device has a housing (2), is fixed to the one housing cover (11, 51). On the housing (2) at least one stud (23) is fixed, which projects through an opening (22) of the housing cover (11, 51). On the free end (25) of the stud (23) a fastening element is screwed, that the housing cover (11, 51) on the housing (2) secures. The fastening element has at least two mutually associated, at the casing cover outer side (13) arranged key surfaces (18). The housing cover (11, 51) has a housing cover on the outer side (13) outwardly projecting dome (16, 56) forming a bearing surface (17) for the fastening element. The maximum distance (d) of the outer periphery (32) of the mandrel (16, 56) to the longitudinal central axis (24) is on the contact surface (17) and adjacent to one of the supporting surface (17) of the first region (27) is at most as large as the half key width (S) of the key faces (18) of the fastener.