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公开(公告)号：US20230200609A1
公开(公告)日：2023-06-29
申请号：US17927948
申请日：2021-06-08
Applicant: Hilti Aktiengesellschaft
Inventor： Uto PLANK
CPC classification number: A47L9/20 , A47L7/0095 , A47L9/1409 , A47L9/122 , B01D46/76 , B01D46/12 , B25D17/20
Abstract: A dust collecting device for a power tool, the dust collecting device having a lamella filter and a rotatable shaft. In the collecting container of the dust collecting device, the lamellae of the filter can be set in an axial movement by a rotary movement of the shaft which is interrupted when the filter lamellae arrive in the region of release of the shaft. The release enables the lamellae to return to their original position, the return of the lamellae to this original position causing the lamellae to vibrate, which leads to the filter being cleaned. A power tool which has a proposed dust collecting device, as well as a method for operating a power tool and for cleaning a filter is also provided.
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Patent Agency Ranking
公开(公告)号：US20230142832A1
公开(公告)日：2023-05-11
申请号：US17914943
申请日：2021-03-25
Applicant: Hilti Aktiengesellschaft
Inventor： Ernst-Rudolf LÜBKERT , Karin GROTH , Uto PLANK , Manuel ROSENZWEIG , Andres WELLMANN JELIC
CPC classification number: B25D11/125 , B25D17/06 , B25D2250/121 , B25D2250/065 , B25D2217/0019 , B25D2250/361 , B25D2250/231
Abstract: An electric hand-held power tool, in particular a hammer drill and/or chipping hammer, having an electropneumatic impact mechanism which has a transmission housing, a guide tube arranged at least partially in the transmission housing, an exciter piston that is movable in an axial direction in the guide tube, a connecting rod coupled to the exciter piston, and an eccentric wheel which is coupled to the connecting rod on one side and is mounted so as to be rotatable with respect to the transmission housing via an end plate of the transmission housing on the other side, wherein the transmission housing is subdivided at least into a main shell and a cover shell separate from the main shell, such that the guide tube is braced against the main shell at least partially by the cover shell.
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公开(公告)号：US20240123589A1
公开(公告)日：2024-04-18
申请号：US17768381
申请日：2019-11-12
Applicant: Hilti Aktiengesellschaft
Inventor： Uto PLANK , Ulrich MANDEL , Josef FÜNFER
IPC: B25D17/06
CPC classification number: B25D17/06 , B25D2222/57 , B25D2250/131
Abstract: Hammer drill and/or chipping hammer having a drive motor, an impact mechanism and a tool fitting for fitting a tool, wherein the impact mechanism has an anvil that is axially displaceable in an anvil guide and acts on the tool, wherein the impact mechanism has an idle-strike damper element and a rebound-strike damper element, which are formed in one piece with one another and as such form a combined damper element, wherein the anvil guide is arranged outside, preferably only outside the combined damper element.
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公开(公告)号：US20230210324A1
公开(公告)日：2023-07-06
申请号：US17928023
申请日：2021-06-08
Applicant: Hilti Aktiengesellschaft
Inventor： Uto PLANK
CPC classification number: A47L7/0095 , B23Q11/0071 , A47L9/20 , A47L9/106
Abstract: A dust collecting device for a power tool, the dust collecting device having a lamella filter, a rotatable shaft and a lamella holder. In the collecting container of the dust collecting device, the lamellae of the filter can be set in an axial movement by a rotary movement of the shaft which is mediated by the lamella holder, which is interrupted when a first profile of the shaft and a second profile of the lamella holder are moved with respect to each other and are not in engagement with each other. This enables the lamellae to return to their original position, the return of the lamellae to this original position causing the lamellae to vibrate, which leads to the filter being cleaned. A power tool which can have a proposed dust collecting device, as well as a method for operating a power tool and for cleaning a filter is also provided.
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公开(公告)号：US20230311288A1
公开(公告)日：2023-10-05
申请号：US18009522
申请日：2021-06-15
Applicant: Hilti Aktiengesellschaft
Inventor： Ernst-Rudolf LÜBKERT , Uto PLANK , Karin GROTH
CPC classification number: B25D11/12 , B25D17/06 , B25D2222/06 , B25D2222/54 , B25D2250/331
Abstract: An electropneumatic impact mechanism for an electric hand-held power tool, in particular a hammer drill and/or chipping hammer, wherein the impact mechanism has a transmission housing, a guide tube arranged at least partially in the transmission housing, an exciter piston that is movable in the axial direction in the guide tube, a connecting rod coupled to the exciter piston, and an eccentric wheel which is coupled to the connecting rod on one side and is mounted so as to be rotatable with respect to the transmission housing on the other side, wherein the impact mechanism has a bearing body on which the eccentric wheel is mounted rotatably by means of a pair of plain bearings.
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公开(公告)号：US20230150103A1
公开(公告)日：2023-05-18
申请号：US17916928
申请日：2021-04-07
Applicant: Hilti Aktiengesellschaft
Inventor： Ernst-Rudolf LÜBKERT , Uto PLANK , Jochen ERHARDT
CPC classification number: B25D11/12 , B25D17/26 , B25D2217/0065 , B25D2250/121 , B25D2250/345 , B25D2250/365
Abstract: An electropneumatic impact mechanism for an electric hand-held power tool, in particular a hammer drill and/or chipping hammer, wherein the impact mechanism has a transmission housing, a guide tube arranged at least partially in the transmission housing, an exciter piston that is movable in the guide tube, a connecting rod coupled to the exciter piston, and an eccentric wheel which is designed as an externally toothed gearwheel and is coupled to the connecting rod on one side and is mounted so as to be rotatable with respect to the transmission housing about an axis of rotation on the other side, an axial gap, preferably for optionally receiving at least part of a lubrication space separating element, is provided between an eccentric wheel surface facing the connecting rod and a connecting rod surface facing the eccentric wheel.
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