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1. 发明授权

US09820421B2 Crop-production tool 有权
公开(公告)号：US09820421B2
公开(公告)日：2017-11-21
申请号：US14419467
申请日：2013-07-12
申请人： Betek GmbH & Co. KG
发明人： Florian Smeets , Heiko Friederichs
IPC分类号： A01B39/22 , A01B76/00
CPC分类号： A01B39/22 , A01B35/225 , A01B76/00
摘要： An earth working tool (20), in particular a cultivator bar for agriculture, has a mounting segment (21) and a working part (22) directly or indirectly adjoining it. A wear-optimized design for the earth working tool (20) is achieved according to the present invention by the fact the mounting segment (21) comprises two support surfaces (21.6, 21.8), spaced apart from one another, that are part of a hook-in connection.

2. 发明申请

US20200378254A1 Pick Having A Supporting Element With A Centering Extension 审中-公开
公开(公告)号：US20200378254A1
公开(公告)日：2020-12-03
申请号：US16943547
申请日：2020-07-30
申请人： Betek GmbH & Co KG
发明人： Ulrich Kraemer , Heiko Friederichs
IPC分类号： E21C35/19 , E21C35/18 , E21C35/193 , E21C35/197
摘要： A round-shank pick having a pick head and a pick shank that includes a supporting element pierced along its longitudinal center axis by a mounting hole with an inside diameter for receiving the pick shank. A collar height, measured in the direction of the longitudinal center axis between an end, facing away from the seat surface, of the centering extension and the seat surface or between the end of the centering extension and an inner termination of a recess that is integrally formed in the supporting element in an indented manner with respect to the seat surface, is configured such that the ratio between the inside diameter of the mounting hole in the supporting element and the collar height is less than 8, and/or that the collar height is greater than an axial clearance of the pick mounted in a pick holder.

3. 发明授权

US10801322B2 Cutting device 有权
公开(公告)号：US10801322B2
公开(公告)日：2020-10-13
申请号：US15749246
申请日：2016-07-11
申请人： Betek GmbH & Co. KG , Wirtgen GmbH
发明人： Thomas Allgaier , Ulrich Krämer , Heiko Friederichs , Thomas Lehnert , Karsten Buhr , Cyrus Barimani
IPC分类号： E21C35/183 , E21C35/193
摘要： The invention relates to a cutting device for an earth working machine, having improved wear protection.

4. 发明授权

US10260341B2 Pick, in particular a round shaft pick 有权
公开(公告)号：US10260341B2
公开(公告)日：2019-04-16
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 , 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.

5. 发明授权

US10227870B2 Chisel 有权
公开(公告)号：US10227870B2
公开(公告)日：2019-03-12
申请号：US15023718
申请日：2014-09-01
申请人： Betek GmbH & Co. KG , Wirtgen GmbH
发明人： Thomas Lehnert , Karsten Buhr , Cyrus Barimani , Heiko Friederichs , Karl Kammerer , Markus Roth
IPC分类号： E21C35/19 , E21C35/18 , B28D1/18
摘要： The invention relates to a chisel (10) having a chisel head (11) and a chisel shaft (17), wherein near its end facing away from the chisel head the chisel shaft has a threaded portion having a thread (19), wherein the chisel head holds a chisel tip (20) made of a hard material, and wherein near the side facing the chisel shaft the chisel head is provided with a supporting surface (15). Especially when superhard hard materials are used for the chisel tip, a load-optimized chisel design is obtained by a domed supporting surface (15).

6. 发明申请

US20150369044A1 Bit, In Particular A Round Shaft Bit 有权
标题翻译：位，特别是圆形轴位
公开(公告)号：US20150369044A1
公开(公告)日：2015-12-24
申请号：US14788993
申请日：2015-07-01
申请人： Betek GmbH & Co. KG
发明人： Thomas Lehnert , Heiko Friederichs
IPC分类号： E21C35/197
CPC分类号： E21C35/197 , E21C2035/1826
摘要： A bit assembly includes a bit having a bit head and a bit shank, a mounting sleeve being held in the region of the bit shank, and a support element that comprises a guidance region being associated with the bit. To allow the bit to be easily deinstalled from the bit receptacle and allow it, if applicable, to be easily installed again, provision is made that the support element comprises, in the region of its underside facing away from the bit head, a deflection segment.
摘要翻译：位组件包括具有位头和钻头柄的钻头，安装套筒保持在钻头柄的区域中，以及支撑元件，其包括与钻头相关联的引导区域。为了允许钻头容易地从钻头容器中卸载，并且允许钻头（如果适用的话）容易地再次安装，则提供支撑元件在其背面背向钻头头的区域中包括偏转段。

7. 发明授权

US11268382B2 Milling pick 有权
公开(公告)号：US11268382B2
公开(公告)日：2022-03-08
申请号：US17046598
申请日：2019-03-19
申请人： Betek GmbH & Co. KG
发明人： Heiko Friederichs , Ulrich Krämer
IPC分类号： E21C35/197 , E21C35/18 , E21C35/183
摘要： The invention relates to a milling pick, in particular a round pick having a pick head (40), which has a pick tip (30) made of a hard material as a cutting element, wherein furthermore a pick shank (10) is provided, which is coupled directly or indirectly to the pick head (40), wherein a wear-protection disk (20) is provided, the cut-out of which, in particular a drilled hole, is pushed onto the pick shank (10),
wherein the wear-protection disk (20) has, on its side facing the pick head (40), a counterface (23), which is designed to come into contact with a bearing surface (41) of the pick head (40), wherein the wear protection disk has, facing away from the counterface (23), an underside support surface (21), which is preferably parallel to the counterface (23), and wherein a disk thickness (d) is formed between the counterface (23) and the support surface (21), is characterized in that the ratio of the diameter of the pick shank (10) located in the area of the cut-out (25) to the thickness of the disk (d) being in the range from 1.5 to 3.75, preferably in the range from 2 to 3.

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