基本信息:
- 专利标题： 线扳手头和线扳手
- 申请号：CN201880032685.4 申请日：2018-03-16
- 公开(公告)号：CN110914017A 公开(公告)日：2020-03-24
- 发明人： N·布坎南
- 申请人： N·布坎南
- 申请人地址： 英国法夫郡
- 专利权人： N·布坎南
- 当前专利权人： N·布坎南
- 当前专利权人地址： 英国法夫郡
- 代理机构： 深圳市百瑞专利商标事务所
- 代理人： 金辉
- 优先权： 1704196.3 20170316 GB 1707287.7 20170508 GB
- 国际申请： PCT/GB2018/050702 2018.03.16
- 国际公布： WO2018/167520 EN 2018.09.20
- 进入国家日期： 2019-11-15
- 主分类号： B25B13/04
- IPC分类号： B25B13/04 ; B25B13/50
The wrench has a thumb switch, when operated, opens against a spring bias the pivotal ring portion around the axis pin attached to the fixed head portion of the wrench head portion, allowing a tube or pipe attached to the fastener to access the confines of the wrench head hexagonal inner profile via the said access channel now provided, the opening of the pivotal ring portion involves approximately 50% of the wrench head portion, the said pivotal ring portion encompassing approximately 50% of the wrench head inner profile. The corner profiles next to the swivel joints are scalloped such that when the pivotal ring is opened the scallops substantially align forming a passageway required for the abutting fastener drive corner to traverse through.