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1. 发明申请

US20170030191A1 PICK, IN PARTICULAR A ROUND SHAFT PICK 审中-公开
标题翻译： PICK，特别是圆形襟翼
公开(公告)号：US20170030191A1
公开(公告)日：2017-02-02
申请号：US15273794
申请日：2016-09-23
申请人： Betek GmbH & Co. KG
发明人： Karl KAMMERER , Heiko FRIEDERICHS
IPC分类号： E21C35/19
CPC分类号： E21C35/19 , E21C35/197
摘要： The present invention relates to a pick, in particular, a round shaft pick, having a pick head and a pick shaft, having a support element which has a centring lug on the underside thereof, wherein the centring lug has a centring surface which extends inclined with respect to the central longitudinal axis of the pick and merges into a seat surface. To this end circumferential channel according to the present invention is disposed in the transition region from the centring surface to the seat surface and the depth of the channel relative to the seat surface is greater than or equal to 0.3 mm. The pick has an optimised rotatability and thus a low wear.
摘要翻译：本发明涉及一种特别涉及具有拾取头和拾取轴的拾取头，其具有在其下侧具有定心凸耳的支撑元件，其中定心凸耳具有倾斜的倾斜面相对于拾取器的中心纵向轴线并且合并成座表面。为此，根据本发明的圆周通道设置在从中心面到座面的过渡区域中，并且通道相对于座面的深度大于或等于0.3mm。该选择具有优化的可旋转性，因此具有低磨损。

2. 发明申请

US20190195069A1 PICK, IN PARTICULAR A ROUND SHAFT PICK 审中-公开
公开(公告)号：US20190195069A1
公开(公告)日：2019-06-27
申请号：US16288529
申请日：2019-02-28
申请人： Betek GmbH & Co. KG
发明人： Karl KAMMERER , Heiko FRIEDERICHS
IPC分类号： E21C35/19 , E21C35/197
摘要： The present invention relates to a pick, in particular, a round shaft pick, having a pick head and a pick shaft, having a support element which has a centering lug on the underside thereof, wherein the centering lug has a centering surface which extends inclined with respect to the central longitudinal axis of the pick and merges into a seat surface. To this end circumferential channel according to the present invention is disposed in the transition region from the centering surface to the seat surface and the depth of the channel relative to the seat surface is greater than or equal to 0.3 mm. The pick has an optimised rotatability and thus a low wear.

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