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公开(公告)号：US10414036B2
公开(公告)日：2019-09-17
申请号：US15528216
申请日：2015-11-17
Applicant: Hilti Aktiengesellschaft
Inventor： Roland Schaer , Antonios Draganis , Peter Hricko , Franz Moessnang , Erwin Manschitz
Abstract: The control method for a hammer drill (1) provides the following steps. During basic operation, the motor (5) rotates at an operating speed for the drilling operation with chiseling action in order to rotationally drive the tool holder (2) and to drive the hammer mechanism (6) with a nominal striking power. The torque coupling (21) is monitored with the aid of a sensor (26). If a disengagement of the torque coupling (21) occurs, the striking power of the hammer mechanism (6) is reduced to below 10% of the nominal striking power during a disengagement of the torque coupling (21), and the torque coupling (21) is driven. When the disengagement of the torque coupling (21) ends, the striking power of the hammer mechanism (6) is increased to the nominal striking power and the torque coupling (21) is driven at the operating speed for the drilling operation with chiseling action.
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公开(公告)号：US10751866B2
公开(公告)日：2020-08-25
申请号：US15321982
申请日：2015-06-25
Applicant: Hilti Aktiengesellschaft
Inventor： Erwin Manschitz , Walter Wissmach
Abstract: A handheld power tool has a tool socket (2) to hold a tool (4) along a working axis (11), a motor (5) and a slip clutch (21) having a number of blocking elements. A sensor (27) serves to record a measured signal (28) as the measure of vibrations inside the handheld power tool (1). A band-pass filter (29) has a pass range in which a frequency lies that is equal to the product of the rotational speed of the wheel (22) on the drive side and the number N of blocking elements (24). The measured signal (28) filtered by the band-pass filter (29) is fed to an evaluation unit (30). When the filtered measured signal (28) exceeds a limit value, the evaluation unit (30) reduces the rotational speed of the motor (5).
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公开(公告)号：US20170043465A1
公开(公告)日：2017-02-16
申请号：US15305978
申请日：2015-04-01
Applicant: Hilti Aktiengesellschaft
Inventor： Manfred Schallert , Manfred Ludwig , Erwin Manschitz , Horst Stroissnigg , Werner Kaibach , Franz Moessnang
CPC classification number: B25D16/003 , B25D2250/165 , F16D7/00 , F16D7/025
Abstract: A hand-held power tool 1 has a tool socket 2 to hold a tool 4 on a working axis 11, a motor 5 and a pneumatic striking mechanism 6. A driven shaft 7 is coupled to the tool socket 2 in order to rotate the tool around the working axis 11. A slip clutch 24 is arranged in the drive train between the motor 5 and the driven shaft 7. The slip clutch 24 has a disk 25 on the drive side and a disk 26 on the driven side. On a driving ring surface 28 that is in contact with the disk 26 on the driven side, the disk 25 on the drive side has first sectors 33 that have a high friction value as well as second sectors 34 that have a low friction value. On the driven ring surface 29 that is in contact with the driving ring surface 28, the disk 26 on the driven side has third sectors 35 that have a high friction value as well as fourth sectors 36 that have a low friction value.
Abstract translation: 手持式电动工具1具有用于将工具4保持在工作轴线11上的工具插座2，电动机5和气动打击机构6.从动轴7联接到工具插座2以便旋转工具 在滑动离合器24的驱动侧具有盘25，在从动侧具有盘26。 在与从动侧的盘26接触的驱动环表面28上，驱动侧的盘25具有摩擦力高的第一区段33和具有低摩擦值的第二区段34。 在与驱动环表面28接触的从动环表面29上，从动侧的盘26具有摩擦力高的第三扇区35和具有低摩擦值的第四扇区36。
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公开(公告)号：US11945085B2
公开(公告)日：2024-04-02
申请号：US17635267
申请日：2020-09-03
Applicant: Hilti Aktiengesellschaft
Inventor： Manfred Ludwig , Erwin Manschitz , Josef Fünfer
CPC classification number: B25D16/00 , B25D11/062 , B25D11/125 , B25D2250/095 , B25D2250/175 , B25D2250/231 , B25D2250/331
Abstract: A hand-held power tool, in particular a hammer drill or combination hammer, having a tool fitting for holding a striking and rotating tool on a working axis, an electric motor coupled to a transmission shaft, an impact mechanism, which has a striker that is moved periodically along the working axis, and having a rotary drive, which drives a guide tube carrying the tool fitting in rotation about the working axis, wherein the rotary drive is coupled to the transmission shaft via a rocker lever.
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公开(公告)号：US20170320205A1
公开(公告)日：2017-11-09
申请号：US15528216
申请日：2015-11-17
Applicant: Hilti Aktiengesellschaft
Inventor： Roland Schaer , Antonios Draganis , Peter Hricko , Franz Moessnang , Erwin Manschitz
IPC: B25D16/00
CPC classification number: B25D16/00 , B23Q11/0092 , B23Q11/04 , B23Q17/22 , B25D11/005 , B25D16/006 , B25D2211/068 , B25D2250/035 , B25D2250/165 , B25D2250/201 , B25D2250/221 , B25F5/001
Abstract: The control method for a hammer drill (1) provides the following steps. During basic operation, the motor (5) rotates at an operating speed for the drilling operation with chiseling action in order to rotationally drive the tool holder (2) and to drive the hammer mechanism (6) with a nominal striking power. The torque coupling (21) is monitored with the aid of a sensor (26). If a disengagement of the torque coupling (21) occurs, the striking power of the hammer mechanism (6) is reduced to below 10% of the nominal striking power during a disengagement of the torque coupling (21), and the torque coupling (21) is driven. When the disengagement of the torque coupling (21) ends, the striking power of the hammer mechanism (6) is increased to the nominal striking power and the torque coupling (21) is driven at the operating speed for the drilling operation with chiseling action.
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Patent Agency Ranking
公开(公告)号：US20170129089A1
公开(公告)日：2017-05-11
申请号：US15321982
申请日：2015-06-25
Applicant: Hilti Aktiengesellschaft
Inventor： Erwin Manschitz , Walter Wissmach
Abstract: A handheld power tool has a tool socket (2) to hold a tool (4) along a working axis (11), a motor (5) and a slip clutch (21) having a number of blocking elements. A sensor (27) serves to record a measured signal (28) as the measure of vibrations inside the handheld power tool (1). A band-pass filter (29) has a pass range in which a frequency lies that is equal to the product of the rotational speed of the wheel (22) on the drive side and the number N of blocking elements (24). The measured signal (28) filtered by the band-pass filter (29) is fed to an evaluation unit (30). When the filtered measured signal (28) exceeds a limit value, the evaluation unit (30) reduces the rotational speed of the motor (5).
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公开(公告)号：US11123854B2
公开(公告)日：2021-09-21
申请号：US16517317
申请日：2019-07-19
Applicant: Hilti Aktiengesellschaft
Inventor： Erwin Manschitz , Walter Wissmach
Abstract: A handheld power tool has a tool socket (2) to hold a tool (4) along a working axis (11), a motor (5) and a slip clutch (21) having a number of blocking elements. A sensor (27) serves to record a measured signal (28) as the measure of vibrations inside the handheld power tool (1). A band-pass filter (29) has a pass range in which a frequency lies that is equal to the product of the rotational speed of the wheel (22) on the drive side and the number N of blocking elements (24). The measured signal (28) filtered by the band-pass filter (29) is fed to an evaluation unit (30). When the filtered measured signal (28) exceeds a limit value, the evaluation unit (30) reduces the rotational speed of the motor (5).
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公开(公告)号：US20180043521A1
公开(公告)日：2018-02-15
申请号：US15528231
申请日：2015-11-17
Applicant: Hilti Aktiengesellschaft
Inventor： Franz Moessnang , Antonios Draganis , Roland Schaer , Peter Hricko , Erwin Manschitz , Bernd Gillmeier
CPC classification number: B25F5/028 , B23D59/001 , B23Q5/10 , B25D2250/221 , B25F5/00 , B25F5/025
Abstract: A hand-held power tool (1) includes a tool holder (2) for holding a tool on a working axis (11) and a motor (5) for rotationally driving the tool holder (2) about the working axis (11). The motor (5) is situated in a power-tool housing (16) and a handle (9) is fastened on the power-tool housing (16) for guiding the hand-held power tool (1) during operation. A rotary motion sensor (15) detects a rotary motion of the power-tool housing (16) about the working axis (11). A monitor (19) ascertains a holding force based on an amplitude of the rotary motion in a frequency range between 0.4 Hz and 4 Hz. A safety device (13) reduces a torque output to the tool holder (2) when the detected rotary motion exceeds a limiting value, the limiting value being set as a function of the holding force.
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公开(公告)号：US20190337137A1
公开(公告)日：2019-11-07
申请号：US16517317
申请日：2019-07-19
Applicant: Hilti Aktiengesellschaft
Inventor： Erwin Manschitz , Walter Wissmach
Abstract: A handheld power tool has a tool socket (2) to hold a tool (4) along a working axis (11), a motor (5) and a slip clutch (21) having a number of blocking elements. A sensor (27) serves to record a measured signal (28) as the measure of vibrations inside the handheld power tool (1). A band-pass filter (29) has a pass range in which a frequency lies that is equal to the product of the rotational speed of the wheel (22) on the drive side and the number N of blocking elements (24). The measured signal (28) filtered by the band-pass filter (29) is fed to an evaluation unit (30). When the filtered measured signal (28) exceeds a limit value, the evaluation unit (30) reduces the rotational speed of the motor (5).
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公开(公告)号：US20180169847A1
公开(公告)日：2018-06-21
申请号：US15736686
申请日：2016-06-28
Applicant: Hilti Aktiengesellschaft
Inventor： Philipp Lorenz , Erwin Manschitz , Azize Cengil
CPC classification number: B25D16/003 , B25D2250/051 , B25D2250/095 , B25D2250/145 , B25D2250/165 , B25D2250/221 , B25D2250/225 , B25F5/001
Abstract: A hand-held power tool, in particular a hammer drill or a combined hammer, includes a safety coupling via which torque transmission between a motor shaft and a transmission shaft of the hand-held power tool can be established and interrupted. The safety coupling includes a coupling part at the input end and a coupling part at the output end and can be actuated by a coupling actuator. Mutually complementary catch profiles, in particular similar to a crown gear set, by which the coupling part at the input end and the coupling part at the output end can be interlocked, are arranged on the coupling part at the input end and on the coupling part at the output end.
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