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公开(公告)号：US10525581B2
公开(公告)日：2020-01-07
申请号：US15775985
申请日：2016-10-04
申请人： Robert Bosch GmbH
摘要： A hand-held power tool includes an electric motor, a housing, and a housing cover. The housing includes an opening located in the vicinity of carbon brushes of the electric motor, such that the carbon brushes can be removed through the opening in the housing. The housing cover includes air inlets through which cooling air can flow into the interior of the housing. The opening in the housing is detachably closed by the housing cover.
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公开(公告)号：US20190308306A1
公开(公告)日：2019-10-10
申请号：US16466715
申请日：2017-11-09
发明人： Konrad ARTMANN , Thomas SCHAEFER , Markus HARTMANN , Norbert DAAM
摘要： A power tool (1) is provided, especially a hammer drill and/or a chiseling hammer drill, including a percussive mechanism (12) with a percussive element (13) to generate a percussive pulse onto a tool (1), the element being reversibly movable along a longitudinal axis (R) by a magnetic field in order to generate the percussive pulse, and including at least a first and a second coil device (1, 2) to generate the magnetic field. Each coil device (1, 2) has at least a first coil ring (3) with a first radius (R1) and a second coil ring (4) with a second radius (R2), whereby the first radius (R1) of the first coil ring (3) is greater than the second radius (R2) of the second coil ring (4), so that a space (S) is formed, at least in certain areas, between the at least first and second coil rings (3, 4), whereby a fluid (L), especially an air stream, that serves to cool the coil device (1, 2) can flow through the space.
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公开(公告)号：US20190084109A1
公开(公告)日：2019-03-21
申请号：US16127614
申请日：2018-09-11
申请人： Black & Decker Inc.
发明人： Uwe NEMETZ , Richard CACCHIOTTI , Markus ROMPEL , Klaus-Dieter ARICH , Arthur LAUER , Stefan D. GENSMANN
摘要： A dust extractor is provided including a main housing, a telescopic tubular extension arm comprising a first forward section slidable into or out of a second rear section over a stroke length between a first inner position and a second outer position, the second rear section being mounted onto the main housing, a shroud mounted on one end of the first forward section remote from the second rear section, a biasing force arranged to urge the first forward section to slide out of the second rear section towards the second outer position, and a dust collection box mounted on the main housing. The stroke length of the telescopic extension arm is greater than 150 mm.
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公开(公告)号：US20180147681A1
公开(公告)日：2018-05-31
申请号：US15820533
申请日：2017-11-22
发明人： Jun Le , Yongtao Li
CPC分类号： B23Q11/0046 , B23Q11/0071 , B25D16/00 , B25D17/043 , B25D17/20 , B25D2211/061 , B25D2217/0057 , B25D2250/121 , B25F5/003 , B25F5/026 , B28D7/02
摘要： A power tool includes a tool main body including a first motor for outputting power to a tool attachment and a dust collecting device. The dust collecting device includes a fan, a second motor for driving the fan to rotate so as to generate absorbing force, a connecting assembly for connecting the dust collecting device with the tool main body detachably, a dust collecting housing connected movably with the connecting assembly in a front and rear direction. The second motor includes a stator and a rotor being capable of rotating relative to the stator about a first axis substantially perpendicular to the front and rear direction. The dust collecting housing is formed with a first containing chamber for containing the fan and a second containing chamber for containing dust absorbed by the dust collecting device.
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公开(公告)号：US09950418B2
公开(公告)日：2018-04-24
申请号：US14137043
申请日：2013-12-20
申请人： MAKITA CORPORATION
CPC分类号： B25F5/02 , B25D17/00 , B25D17/20 , B25D17/24 , B25D2217/0065 , B25D2250/051 , B25D2250/065 , B25D2250/121 , B25D2250/361 , B25F5/006
摘要： An impact tool is provided which has a driving mechanism 120, 140 that drives a tool bit 119, a motor 110 that drives the driving mechanism 120, 140, an inner housing 103 that houses the driving mechanism 120, 140, an outer housing 101 that has an internal space for housing the inner housing 103 and the motor 110, an opening 193 that leads from the outside to the internal space of the outer housing 101, and a covering member 195 that covers the opening 193.
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公开(公告)号：US20180099396A1
公开(公告)日：2018-04-12
申请号：US15724503
申请日：2017-10-04
申请人： MAKITA CORPORATION
发明人： Hitoshi IIDA , Masanori FURUSAWA , Kei WATANABE
CPC分类号： B25D17/24 , B25D11/12 , B25D16/006 , B25D17/043 , B25D17/20 , B25D2211/003 , B25D2211/068 , B25D2216/0023 , B25D2216/0084 , B25D2250/095 , B25D2250/121 , B25D2250/245 , B25D2250/265 , B25D2250/371 , F21V33/00
摘要： A power tool, such as a rotary hammer or hammer drill, includes a first housing that contains a motor and a drive mechanism for linearly reciprocally driving a tool accessory, and a second housing that includes a handle, a first portion and a second portion. At least one elastic element connects the first and second housings such that the handle is biased away from the first housing. A first set of sliding contact surfaces is defined on or connected to the first housing and the first portion of the second housing. A second set of sliding contact surfaces is defined on or connected to the first housing and the second portion of the second housing. The first and second sets of sliding contact surfaces are located on opposite sides of the motor such that the rotational axis of the motor intersects the first and second sets of sliding contact surfaces.
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公开(公告)号：US09925691B2
公开(公告)日：2018-03-27
申请号：US15114286
申请日：2015-03-30
发明人： Masaaki Miyanaga
CPC分类号： B28D1/146 , B23B51/02 , B23B51/06 , B23B2226/75 , B23B2251/241 , B23B2251/406 , B23B2251/50 , B25D17/02 , B25D17/20 , B25D2250/111 , B25D2250/211 , B28D7/02
摘要： A drill bit includes a pointed head and a bit shaft. A dust suction passage is formed in the bit shaft. A hole with an opening is formed in the pointed head or in a portion of the bit shaft, the portion being near a distal end of the bit shaft. The bit shaft includes a first portion, the first portion including a core and a rib. The core extends in an axial direction, and is thinner than the pointed head. The rib protrudes radially outward from a side surface of the core, and extends over an entire length of the first portion. The dust suction passage extends through the core in the axial direction.
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公开(公告)号：US20170326718A1
公开(公告)日：2017-11-16
申请号：US15531985
申请日：2015-11-30
发明人： Ralf Meixner , Manfred Jakob , Thomas Thanner
IPC分类号： B25F5/00 , H01M10/6563 , B25D11/00 , H01M10/6235 , B25D16/00 , B25D17/20 , H01M10/48
摘要： A hand-held power tool, in particular a hammer drill or a combination hammer, is disclosed. The hand-held power tool includes a tool housing which has a receiving recess designed to replaceably receive a storage battery or a power supply unit. The hand-held power tool has an electric drive motor with a cooling fan. The tool housing has a first vent portion which is located in the receiving recess and through which a volume flow generated by the cooling fan can be guided.
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公开(公告)号：US09815186B2
公开(公告)日：2017-11-14
申请号：US14510174
申请日：2014-10-09
申请人： Caterpillar Inc.
发明人： Dimitar B. Dostinov
CPC分类号： B25D17/20 , B25D17/24 , B25D17/28 , B25D2217/0069 , B25D2222/03 , B25D2222/06 , B25D2250/121 , E02F3/966
摘要： A powered hammer includes a housing having a proximal end and a distal end. The distal end includes an opening for a tool to pass through. The powered hammer further includes a shroud member coupled to the housing and configured to surround an outer surface of the distal end of the housing. The shroud member includes an opening on a lower surface thereof. The opening is configured to allow the tool to pass through. The shroud member is made from a ceramic material with a layer of fiber glass disposed adjacent to the outer surface of the distal end of the housing. The shroud member is configured to reduce heat transfer to the housing from an ambient environment proximate the distal end of the housing.
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公开(公告)号：US20170057037A1
公开(公告)日：2017-03-02
申请号：US15240252
申请日：2016-08-18
申请人： Black & Decker Inc.
发明人： Arthur Lauer
CPC分类号： B23Q11/0071 , B23Q11/0046 , B25D16/00 , B25D17/20 , B25D2217/0057
摘要： A dust extractor for a drill includes a housing having an engagement region for receiving the drill when connected to the dust extractor; and a latch mechanism. The latch mechanism includes a latch moveably mounted within the housing and moveable between a first position and a second position, a biasing mechanism biasing the latch towards the first position, and a catch attached to the latch. The catch has a chamfer which is arranged so that the chamfer slidingly engages the drill and moves the latch from its first position towards its second position when the drill enters the engagement region.
摘要翻译： 用于钻头的除尘器包括壳体，该壳体具有用于在连接到除尘器时接收钻头的接合区域; 和闩锁机构。 闩锁机构包括可移动地安装在壳体内并可在第一位置和第二位置之间移动的闩锁，偏置机构朝向第一位置偏置闩锁，以及附接到闩锁的卡扣。 卡扣具有倒角，该倒角布置成使得当钻进入接合区域时，倒角滑动地接合钻头并且将闩锁从其第一位置移动到其第二位置。
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