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公开(公告)号：US11306446B2
公开(公告)日：2022-04-19
申请号：US16849137
申请日：2020-04-15
发明人： Robert Hartmann , Andreas Bartl , Martin Simon , Ferdinand Rupp
摘要： A hand-held power tool has a lower mass and an upper mass. The lower mass has a tool and a working device for causing the tool to effect a work movement. The upper mass is movable relative to the lower mass and has a drive motor for the working device. A first vibration decoupling device is arranged between the lower mass and the upper mass for decoupling the upper mass from the lower mass in terms of vibration. A guide drawbar guides is provided for guiding the work tool by an operator. An electrical energy storage provides electrical energy for starting the drive motor. A drawbar carrier is carried by the upper mass and is connected to the upper mass via a second vibration decoupling device. The guide drawbar is attached to the drawbar carrier, and the energy storage is carried by the drawbar carrier.
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公开(公告)号：US20230133699A1
公开(公告)日：2023-05-04
申请号：US17975855
申请日：2022-10-28
发明人： Robert Hartmann , Ferdinand Rupp , Andreas Bartl
摘要： A mobile work machine has a loadbearing frame and a drive unit. A covering unit can be moved for into and out of a covering position covering a loadbearing frame opening for covering the drive unit. At least one closure unit for selectively holding the covering unit in a closure position has at least one first closure element and one second closure element which can be adjusted along an adjustment path relative to the first closure element. The closure unit has at least one obstacle to be overcome during the relative adjustment of the first and second closure element. The obstacle defines a release path during opening which is oriented in the direction of the adjustment path and, defines a fixing path during closing which is oriented in the direction of the adjustment path. The release path for the opening is greater than the fixing path.
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公开(公告)号：US20200332481A1
公开(公告)日：2020-10-22
申请号：US16849137
申请日：2020-04-15
发明人： Robert Hartmann , Andreas Bartl , Martin Simon , Ferdinand Rupp
摘要： A hand-held power tool has a lower mass and an upper mass. The lower mass has a tool and a working device for causing the tool to effect a work movement. The upper mass is movable relative to the lower mass and has a drive motor for the working device. A first vibration decoupling device is arranged between the lower mass and the upper mass for decoupling the upper mass from the lower mass in terms of vibration. A guide drawbar guides is provided for guiding the work tool by an operator. An electrical energy storage provides electrical energy for starting the drive motor. A drawbar carrier is carried by the upper mass and is connected to the upper mass via a second vibration decoupling device. The the guide drawbar is attached to the drawbar carrier, and the energy storage is carried by the drawbar carrier.
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公开(公告)号：US10323362B2
公开(公告)日：2019-06-18
申请号：US14655451
申请日：2013-11-18
发明人： Andreas Bartl
摘要： A vibration exciter for a soil compacting device includes a first unbalanced shaft on which at least one first unbalanced mass is arranged, a second unbalanced shaft which is arranged axially parallel to the first unbalanced shaft, which is contra-directionally rotatably coupled to the first unbalanced shaft in form-locked manner, and on which at least one second unbalanced mass is arranged, and a drive device for rotatably driving one of the unbalanced shafts and a rotation device. The drive device can be actuated by an actuation device in order to rotate the second unbalanced mass relative to the first unbalanced mass. The second unbalanced shaft has a cavity, and the actuation device is at least partially arranged inside the cavity.
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公开(公告)号：US09925563B2
公开(公告)日：2018-03-27
申请号：US14655469
申请日：2013-11-14
发明人： Andreas Bartl , Martin Simon
CPC分类号： B06B1/166 , E01C19/38 , E02D3/046 , E02D3/074 , Y10T74/18344
摘要： A vibration exciter for a soil compacting device, comprising a first unbalanced shaft, a second unbalanced shaft, which is arranged axially parallel to the first unbalanced shaft and which is contra-directionally rotatably coupled to the first unbalanced shaft in a form-locked manner, and a drive device for rotatably driving one of the two unbalanced shafts. The second unbalanced shaft has a first unbalanced shaft half and a second unbalanced shaft half, which is arranged coaxially to the first unbalanced shaft half and which can rotate relative to the first unbalanced shaft half. At least one respective unbalanced mass is arranged on the first unbalanced shaft, on the first unbalanced shaft half, and on the second unbalanced shaft.
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