Method for switching off a power tool
    41.
    发明授权
    Method for switching off a power tool 有权
    关闭电动工具的方法

    公开(公告)号:US07372226B2

    公开(公告)日:2008-05-13

    申请号:US10557936

    申请日:2004-11-30

    IPC分类号: H02P3/00

    摘要: In a method for shutting off a drive motor (12) of a power tool that drives a tool, the drive motor (12) is shut off as a function of a variable threshold value (E1) if the tool jams. The threshold value (E1) is determined in at least one predetermined time interval (T1) as a function of a current load speed (n1) and a no-load speed (n0).

    摘要翻译: 在用于关闭驱动工具的电动工具的驱动马达(12)的方法中,驱动马达(12)作为可变阈值(E 1> 1)的函数被切断,如果 工具卡住 作为当前负载速度(n <1> 1)的函数,在至少一个预定时间间隔(T 1> 1)中确定阈值(E 1> 1) SUB>)和空载速度(n <0> 0)。

    Electric portable power tool with rotatable guard
    42.
    发明授权
    Electric portable power tool with rotatable guard 有权
    电动便携式电动工具带可转动防护装置

    公开(公告)号:US07311589B2

    公开(公告)日:2007-12-25

    申请号:US10521061

    申请日:2003-10-31

    申请人: Juergen Wiker

    发明人: Juergen Wiker

    IPC分类号: B24B23/00

    摘要: A manually operated electric machine tool for a disk-shaped rotating tool (18), having a machine housing (11) from which a drive spindle (12) for the tool (18) protrudes and on which a hollow cylindrical collar (15) is embodied coaxial to the drive spindle (12), and having a guard (20) that is detachably connected to the machine housing (11) and is designed to at least partially cover the tool (18), which guard can be mounted to and fixed in relation to the collar (15) by means of a clamp (23) with a clamping element (24). To set the guard (20) in desired rotation positions in relation to the machine housing (11) without using an auxiliary tool, and to secure the guard (20) in any rotation position, the clamp (23) is secured to the collar (15) in a rotating fashion and a manually releasable locking mechanism is provided between the clamp (23) and the collar (15) (FIG. 1).

    摘要翻译: 一种用于盘形旋转工具(18)的手动操作的电动工具,具有机器壳体(11),用于所述工具(18)的驱动轴(12)从该机壳体突出并且中空圆柱形轴环 与所述驱动主轴(12)同轴地设置,并且具有可拆卸地连接到所述机器壳体(11)的防护件(20),并且被设计成至少部分地覆盖所述工具(18),所述防护件可以安装到并固定 通过具有夹紧元件(24)的夹具(23)相对于套环(15)。 为了将护罩(20)相对于机器壳体(11)设置在相对于机器壳体(11)的期望的旋转位置中,而不使用辅助工具,并且将护罩(20)固定在任何旋转位置,夹具(23)固定到套环 15)和手动可释放的锁定机构设置在夹具(23)和套环(15)(图1)之间。

    Masonry drill bit
    43.
    发明授权
    Masonry drill bit 失效
    石工钻头

    公开(公告)号:US5893688A

    公开(公告)日:1999-04-13

    申请号:US907028

    申请日:1997-08-06

    IPC分类号: B23B51/02

    摘要: A masonry drill bit having an improved insert geometry, insert orientation, and interface clearance for providing improved drill speed and penetration rate. The drill bit is adapted for use in drilling masonry or other hard, brittle material. The drill bit has an axially elongated body with a leading front end portion and a rear end portion. The rear end portion is adapted to be held by a tool holder. The body has at least one spiral groove cast in its exterior surface substantially along its length. The insert is embedded in the leading end of the body, extending generally diametrically across the leading end of the body, and centered about a latitudinal plane of the insert. The geometric design of the insert, the orientation of the insert relative to the drill bit, and the interface clearance between the insert and the grooves, reduces friction and heat; resists wear, fractures, and abrasive actions of the chips; increases design life of the elements; and enhances debris elimination.

    摘要翻译: 具有改进的插入物几何形状,插入物取向和界面间隙的砖石钻头,用于提供改进的钻速和穿透速率。 钻头适用于钻石砌体或其他硬质脆性材料。 钻头具有带前端部前端部和后端部的轴向细长体。 后端部适于由工具架保持。 主体具有至少一个沿其长度在其外表面上铸造的螺旋槽。 插入件嵌入在主体的前端中,大致沿直径延伸穿过主体的前端,并且以插入件的纬向平面为中心。 插入件的几何设计,插入件相对于钻头的定向以及插入件和凹槽之间的界面间隙减小了摩擦和热量; 抵抗芯片的磨损,破裂和磨蚀作用; 增加元素的设计寿命; 并增强碎片消除。

    Table saw with foldable tabletop and handle

    公开(公告)号:US09776262B2

    公开(公告)日:2017-10-03

    申请号:US13273624

    申请日:2011-10-14

    摘要: A table saw assembly includes a base portion with a base work piece support surface which defines a support plane and a saw blade opening. A saw blade is positionable to extend upwardly through the saw blade opening. A first extension includes a first extension work piece support surface which is pivotable with respect to the base portion between a first position coplanar with the base work piece support surface and a second position above the support plane. A second extension includes a second extension work piece support surface which is pivotable between a third position coplanar with the base work piece support surface and a fourth position above the support plane. The table saw assembly includes a handle located above the work piece support surface and accessible by a user when the first extension is in the second position and the second extension is in the fourth position.

    Handheld power saw
    45.
    发明授权
    Handheld power saw 有权
    手持式电锯

    公开(公告)号:US09283629B2

    公开(公告)日:2016-03-15

    申请号:US10587686

    申请日:2006-01-03

    摘要: The handheld power saw includes a drive mechanism with a lifting rod; a saw blade with an elongated recess in a guide region thereof and a retaining region with a T-shaped extension; a coupling device for retaining and driving the saw blade located on the lifting rod, which includes a clamping sleeve configured to receive the T-shaped extension to connect the saw blade to the lifting rod; a guide assembly for guiding oscillatory motion of the saw blade, which includes two lateral bracing devices arranged on opposite sides of the saw blade that shield the coupling device from shear forces; a pressure roller supported on a bolt, which is arranged to bear on an edge of the saw blade and a pressure bolt arranged in the elongated recess to directly guide the saw blade.

    摘要翻译: 手持式动力锯包括具有提升杆的驱动机构; 具有在其引导区域中的细长凹槽的锯片和具有T形延伸部的保持区域; 用于保持和驱动位于所述提升杆上的锯片的联接装置,所述联接装置包括构造成接纳所述T形延伸部以将所述锯片连接到所述提升杆的夹紧套筒; 用于引导锯片的振荡运动的引导组件,其包括布置在锯片的相对侧上的两个横向支撑装置,该侧向支撑装置将联接装置免受剪切力的影响; 支撑在螺栓上的压力辊,其布置成承载在锯片的边缘上;以及压力螺栓,其布置在细长凹槽中以直接引导锯片。

    Guard attachment device
    46.
    发明授权
    Guard attachment device 失效
    防护装置

    公开(公告)号:US08282446B2

    公开(公告)日:2012-10-09

    申请号:US12095781

    申请日:2007-04-19

    IPC分类号: B24B55/04

    CPC分类号: B24B23/02 B24B55/052

    摘要: The invention is based on a protective hood fastening device having a fastening element (12a-12n) for fastening a protective hood (14a-14n) which is intended for partly enclosing a rotating application tool on a body (16a-16n) of an electric tool (10a-10n). It is proposed that the fastening element (12a-12n) comprise at least one latching element (18a-18n) for locking the protective hood (14a-14n) against rotation relative to the body (16a-16n) of the electric tool (10a-10n).

    摘要翻译: 本发明基于具有紧固元件(12a-12n)的保护罩紧固装置,该紧固元件用于将用于将旋转的施加工具部分地包围在电动机体(16a-16n)上的保护罩(14a-14n) 工具(10a-10n)。 提出紧固元件(12a-12n)包括至少一个用于锁定保护罩(14a-14n)以相对于电动工具(10a)的主体(16a-16n)旋转的闭锁元件(18a-18n) -10n)。

    MITER SAW WITH ADJUSTABLE FENCE
    47.
    发明申请
    MITER SAW WITH ADJUSTABLE FENCE 有权
    具有可调节性的MITR SAW

    公开(公告)号:US20120167738A1

    公开(公告)日:2012-07-05

    申请号:US12983423

    申请日:2011-01-03

    IPC分类号: B27B27/06

    摘要: A miter saw includes a base, a turntable rotatable in relation to the base and including a work piece support surface, a support assembly attached to the turntable, and a saw assembly attached to the support assembly and configured to cut a work piece supported on the turntable. A fence assembly includes an elongate fence body that extends along a first axis. The elongate fence body is supported by the base and positioned over the turntable. The fence body has a first connecting structure, and a fence insert defining an elongate work piece abutment surface and having a second connecting structure. The fence assembly is positionable in a first configuration and a second configuration. In the first configuration, the second connecting structure cooperates with the first connecting structure to secure the fence insert at a first position in relation to the fence body. When the fence assembly is positioned in the second configuration, the second connecting structure cooperates with the first connecting structure to secure the fence insert at a second position in relation to the fence body. A second axis intersects the first axis in a perpendicular manner. When the fence insert is secured at the first position, the elongate work piece abutment surface is positioned to intersect the second axis at a first point. When the fence insert is secured at the second position, the elongate work piece abutment surface is positioned to intersect the second axis at a second point, and the first point is offset from the second point along said second axis.

    摘要翻译: 斜切锯包括基部,相对于基部旋转并包括工件支撑表面的转台,附接到转盘的支撑组件和附接到支撑组件的锯组件,并且被配置为切割支撑在支架上的工件 转盘 围栏组件包括沿着第一轴线延伸的细长围栏主体。 细长栅栏主体由基座支撑并定位在转台上。 栅栏体具有第一连接结构和限定细长工件邻接表面并且具有第二连接结构的栅栏插入件。 栅栏组件可定位在第一配置和第二配置中。 在第一构造中,第二连接结构与第一连接结构相配合,以将栅栏插入件相对于栅栏体固定在第一位置。 当栅栏组件定位在第二构造中时,第二连接结构与第一连接结构配合,以将栅栏插入件相对于栅栏体固定在第二位置。 第二轴以垂直方式与第一轴相交。 当挡板插入件固定在第一位置时,细长工件邻接表面定位成在第一点处与第二轴相交。 当挡板插入件固定在第二位置时,细长工件邻接表面被定位成在第二点处与第二轴线相交,并且第一点沿着所述第二轴线偏离第二点。

    Electric power tool having cooling conduits
    48.
    发明授权
    Electric power tool having cooling conduits 有权
    具有冷却导管的电动工具

    公开(公告)号:US07597157B2

    公开(公告)日:2009-10-06

    申请号:US10550047

    申请日:2004-09-24

    IPC分类号: H02K9/04

    摘要: An electric power tool includes an electric motor located in a housing (10) and a cooling device (16, 18, 20, 30, 32). The cooling device (16, 18, 20, 30, 32), at least in some regions, has a cooling conduit (30) that is closed off from an interior of the housing (10).

    摘要翻译: 电动工具包括位于壳体(10)和冷却装置(16,18,20,30,32)中的电动机。 至少在一些区域中,冷却装置(16,18,20,30,32)具有从外壳(10)的内部封闭的冷却导管(30)。