公开(公告)号：US11927022B2

公开(公告)日：2024-03-12

申请号：US17679332

申请日：2022-02-24

申请人： MILWAUKEE ELECTRIC TOOL CORPORATION

发明人： Ian C. Richards

IPC分类号： E04F21/24

CPC分类号： E04F21/248

摘要： A concrete trowel is disclosed and includes a frame, a drive assembly including a motor mounted on the frame and a drive hub configured to receive torque from the motor, and a rotor rotatable about a rotational axis and including a plurality of blades. The concrete trowel further includes a quick-change coupling for selectively attaching the rotor and the drive hub for co-rotation therewith.

公开(公告)号：US20110268504A1

公开(公告)日：2011-11-03

申请号：US13096717

申请日：2011-04-28

申请人： John G. Marx ,  Jonathan P. Lobert ,  Todd M. Gehring

发明人： John G. Marx ,  Jonathan P. Lobert ,  Todd M. Gehring

IPC分类号： E01C19/22

CPC分类号： E04F21/248

摘要： A power trowel for treating a concrete surface includes a support frame configured to be moved on the concrete surface. A propane supply vessel is supported by the support frame and is configured to contain propane. The propane supply vessel is positioned to reduce obstructions to the operator's view of the concrete surface. An internal combustion engine is supported by the support frame and is in fluid communication with the propane supply vessel to receive propane therefrom to power the internal combustion engine. One or more rotatable shafts are driven by the internal combustion engine, and one or more trowel blades connect to the one or more rotatable shafts so as to rotate therewith.

摘要翻译： 用于处理混凝土表面的动力t刀包括构造成在混凝土表面上移动的支撑框架。 丙烷供应容器由支撑框架支撑并且构造成容纳丙烷。 丙烷供应容器被定位成减少对操作者对混凝土表面的看法的障碍。 内燃机由支撑框架支撑并与丙烷供应容器流体连通以从其中接收丙烷以为内燃机供电。 一个或多个可旋转轴由内燃机驱动，并且一个或多个t刀连接到一个或多个可旋转轴以便随之旋转。

公开(公告)号：US20080289842A1

公开(公告)日：2008-11-27

申请号：US11753125

申请日：2007-05-24

申请人： LARRY JAKE CHAPPLE ,  DOUGLAS SAMUEL PRAIRIE

发明人： LARRY JAKE CHAPPLE ,  DOUGLAS SAMUEL PRAIRIE

IPC分类号： B25D17/04

CPC分类号： B25F5/006 ,  E04F21/248

摘要： Disclosed is a vibration dampening handle for power tools. It includes a frame member attached to the power tool itself, and a handle assembly, which is attached to the frame member via connection to resilient material attached to an isolator chassis assembly located at a vibration node point of the frame member. The vibration dampening handle may also include a height adjustment mechanism.

摘要翻译： 公开了用于电动工具的减振手柄。 其包括附接到动力工具本身的框架构件和手柄组件，其通过连接到位于框架构件的振动节点处的隔离器底盘组件的弹性材料连接到框架构件。 振动阻尼手柄还可以包括高度调节机构。

公开(公告)号：US07399140B2

公开(公告)日：2008-07-15

申请号：US11787238

申请日：2007-04-16

申请人： Lauro Barcenas

发明人： Lauro Barcenas

IPC分类号： E01C19/22

CPC分类号： E04F21/248

摘要： A drill attachment for smoothing the edges and corners of a concrete slab is disclosed. The drill attachment includes a shaft that is secured or chucked into an electric drill. Pluralities of troweling blades extend from the central shaft and are secured at their ends to maintain their position and orientation. The blades are secured to the trowel at variable or fixed angles that are changeable to suit the finishing need of the operator. In operation the drill attachment is used to smooth the ends and corners of a foundation where larger smoothing trowel machines have difficulty reaching. The power trowel is field installed and removed when needed for use, cleaning and storage. The drill attachment has an independently spinning blade cover extends over the ends of the blades to prevent damage to a wall or other surface when the trowel is in use.

公开(公告)号：US20070071553A1

公开(公告)日：2007-03-29

申请号：US10578349

申请日：2004-11-19

申请人： Yoshiyuki Koba

发明人： Yoshiyuki Koba

IPC分类号： E01C19/22

CPC分类号： E04F21/244 ,  E04F21/247 ,  E04F21/248

摘要： A floor surface finishing device easy to handle, capable of completing a final finishing operation on the floor surface in a relatively short time, and making it possible to reduce the number of operators. A floor surface finishing device (1) comprises a plane leveling machine (5) having a plurality of rotary blades (4) adapted to be rotated in a propeller manner by the driving force from a motor (3) while keeping in contact with a floor surface to be finished (2), and a planar finishing blade (8) which is connected to the planar leveling machine (5) through a connecting member (6) and which, in this state, is disposed in a portion of the outer peripheral regions of the planes of rotation (7) of the rotary blades (4). Further, on the side opposite to the finishing blade (8) of the plane leveling machine (5), an operating handle (9) for the operator to manipulate the floor surface finishing device (1) is attached. The final finishing operation on the floor surface to be finished (2) can be conducted by placing the floor surface finishing device (1) on the floor surface to be finished (2), rotating the rotary blades (4) by the motor (3) while pulling the operating handle (9) to horizontally move the whole of the floor surface finishing device (1) along the floor surface to be finished (2) in the direction of an arrow A.

摘要翻译： 一种易于处理的地板表面处理装置，能够在相当短的时间内在地板表面上完成最终的整理操作，并且可以减少操作者的数量。 地面整理装置（1）包括平面整平机（5），其具有多个旋转叶片（4），所述多个旋转叶片适于通过来自马达（3）的驱动力以螺旋桨方式旋转，同时保持与地板 待切割表面（2）和通过连接构件（6）连接到平面整平机（5）的平面精加工刀片（8），并且在该状态下，设置在外周的一部分 旋转叶片（4）的旋转平面（7）的区域。 此外，在与平面整平机（5）的精加工刀片（8）相反的一侧，安装有用于操作者操作地板表面精加工装置（1）的操作手柄（9）。 可以通过将地板表面处理装置（1）放置在待完成的地板表面（2）上，通过马达（3）旋转旋转叶片（4）来进行要完成的地板表面（2）上的最终精加工操作 ），同时拉动操作手柄（9）沿着箭头A的方向沿着待完成的地板表面（2）水平移动整个地板表面处理装置（1）。

公开(公告)号：US07172365B2

公开(公告)日：2007-02-06

申请号：US11228545

申请日：2005-09-16

申请人： Todd J. Lutz ,  Gregory Kruepke ,  Darrin W. Dauffenbach ,  Richard D. Goldberg

发明人： Todd J. Lutz ,  Gregory Kruepke ,  Darrin W. Dauffenbach ,  Richard D. Goldberg

IPC分类号： E01C19/22

CPC分类号： E04F21/248

摘要： A method is provided of making and using a walk behind rotary trowel that is “dynamically balanced” so as to minimize the forces/torque that the operator must endure to control and guide the trowel. Characteristics that are accounted for by this method include, but are not limited to, friction, engine torque, machine center of gravity, and guide handle position. As a result, dynamic balancing and consequent force/torque reduction were found to result when the machine's center of gravity was shifted substantially relative to a typical machine's center of gravity. Dynamic balancing can be achieved most practically by reversing the orientation of the engine relative to the guide handle assembly when compared to traditional walk behind rotary trowels and shifting the engine as far as practical to the right. This shifting has been found to reduce the operational forces and torque the operator must endure by at least 50% when compared to traditional machines.

摘要翻译： 提供了一种制造和使用“动态平衡”的旋转t刀后面的步行方法，以便最小化操作者必须忍受以控制和引导t刀的力/扭矩。 通过该方法考虑的特性包括但不限于摩擦，发动机扭矩，机器重心和导向手柄位置。 结果，当机器的重心相对于典型的机器重心基本上移动时，发现动态平衡和随之而来的力/扭矩降低。 与传统步行在后面的旋转t刀相比，将发动机相对于导向手柄组件的方位反转更为实际，可以实现动态平衡。 已经发现，与传统机器相比，操作人员必须忍受至少50％的操作力和扭矩。

公开(公告)号：US20050100406A1

公开(公告)日：2005-05-12

申请号：US10704503

申请日：2003-11-07

申请人： Michael Jenkins ,  Gregory Kruepke

发明人： Michael Jenkins ,  Gregory Kruepke

IPC分类号： B28B1/29 ,  B28B11/08 ,  E04F21/24 ,  F16D55/02 ,  F16D65/02 ,  F16D65/14 ,  F16D67/02 ,  F16H1/16 ,  F16H61/16 ,  E01C19/22

CPC分类号： F16H1/16 ,  E04F21/248 ,  F16D2065/024 ,  F16D2127/005

摘要： A brake of a concrete finishing trowel responds automatically to the cessation of drive torque delivery to the rotor to actively brake the trowel's drive train, hence inhibiting or preventing frame rotation. The brake preferably takes advantages of inherent characteristics of an inclined gear, such as a worm of a gearbox, to permit an internal component of the gearbox to shift automatically upon the cessation of drive torque therethrough from a brake released position to a brake engaged position. In the case of a worm gear-based gearbox, the worm is configured such that reaction forces that are normally generated by the delivery of drive torque therethrough shift the worm to release the brake during normal trowel operation. These forces are eliminated in the absence of drive torque transfer, permitting the worm to shift to a brake engaged position.

摘要翻译： 混凝土t刀的制动器自动响应驱动扭矩输送到转子的动作，以主动地制动t刀的传动系，从而抑制或防止框架旋转。 制动器优选地具有诸如齿轮箱的蜗杆的倾斜齿轮的固有特性的优点，以允许变速箱的内部部件在从制动释放位置到制动接合位置的驱动力矩的停止时自动地移动。 在基于蜗轮的齿轮箱的情况下，蜗杆被构造成使得通常通过传递驱动扭矩而产生的反作用力在正常的t刀操作期间使蜗杆移动以释放制动器。 在没有驱动扭矩传递的情况下，这些力被消除，允许蜗杆移动到制动接合位置。

公开(公告)号：US06648548B2

公开(公告)日：2003-11-18

申请号：US10008387

申请日：2001-12-07

申请人： Gordon M. Kelsay, III

发明人： Gordon M. Kelsay, III

IPC分类号： E01C1922

CPC分类号： E04F21/248

摘要： A trowel machine has replaceable blades. In a preferred embodiment, the blade can be replaced separately from the backing bar, and the same fasteners that secure the blade to the backing bar also secure to the trowel arm of the machine. In a preferred embodiment, the blade is deformed in the area of the mounting holes, providing an interlocking, clamping surface recessed from the working surface of the blade, so that there is retention of the blade on the trowel machine, even as the blade wears.

摘要翻译： 抹泥机具有可替换的刀片。 在优选实施例中，刀片可以与背衬杆分开更换，并且将刀片固定到背衬杆上的相同紧固件也固定到机器的el刀臂上。 在优选实施例中，叶片在安装孔的区域中变形，提供从叶片的工作表面凹陷的互锁夹紧表面，使得刀片保持在抹光机上，即使刀片磨损 。

公开(公告)号：US06264397B1

公开(公告)日：2001-07-24

申请号：US09470400

申请日：1999-12-28

申请人： Charles Majewski

发明人： Charles Majewski

IPC分类号： E01C1922

CPC分类号： E04F21/248

摘要： A trowel blade assembly for use with a rotary surfacing machine with the assembly consisting of a relatively thick, inflexible trowel blade and a relatively thin, flexible finish blade, wherein the latter is secured with respect to the former such that when in operation on a substantially horizontal working surface, with the blade assembly selectively rotated about a horizontal axis, the finish blade is continuously in contact with the working surface regardless of the consequent variable degrees of tilting of the trowel blade with respect to the working surface.

摘要翻译： 一种与旋转式铺面机一起使用的抹光刀片组件，该组件由相对厚的，不灵活的t刀片和相对薄的柔性精加工刀片组成，其中后刀片相对于前者固定，使得当基本上 水平工作表面，其中刀片组件围绕水平轴线选择性地旋转，精整刀片与工作表面连续地接触，而与剔刀刀片相对于工作表面的倾斜可变程度无关。

公开(公告)号：US5480259A

公开(公告)日：1996-01-02

申请号：US267406

申请日：1994-06-29

申请人： John H. Thrower

发明人： John H. Thrower

IPC分类号： E04F15/12 ,  E04F21/24 ,  E01C19/23

CPC分类号： E04F15/12 ,  E04F21/248

摘要： An aggregate floor including terrazzo and the like and a method for forming the floor on a supporting surface, the floor including a layer of flexible compound applied to the surface, a reinforcement mesh positioned between divider strips and adjacent the compound and supporting a layer of compacted aggregate forming a substantially level surface. The divider strips are selectively positioned in desired configurations on the flexible compound layer to divide the mesh and aggregate into discreet and crack controlled sections. A mixture of composite cement, water, and, in some cases, sand is applied to the surface of the aggregate layer in such a viscosity as to gravitate completely through the aggregate layer and make contact with the underlying layer of flexible compound. Such permeation fills and replaces the air pockets between the aggregate particles and deposits sufficient top coating on the surface of the aggregate to be polished to a finished surface. The method includes the steps of compacting the aggregate in dry form as it is applied to the mesh and thereafter compacting the aggregate together with the composite cement, water and sand, when used, to form the upper surface to be polished.

摘要翻译： 包括水磨石等的聚集地板和在支撑表面上形成地板的方法，地板包括施加到表面的柔性化合物层，加强网，其位于分隔带之间并邻近化合物并且支撑一层压实 骨料形成基本水平的表面。 分隔带选择性地定位在柔性化合物层上的所需构型中，以将网状物和聚集体分成谨慎和裂纹控制的部分。 将复合水泥，水和一些情况下的砂混合物以这样的粘度施加到聚集体层的表面，使其完全通过聚集体层并与柔性化合物的下层接触。 这种渗透填充并代替聚集颗粒之间的气穴，并将要抛光的聚集体的表面上的足够的顶涂层沉积到成品表面。 该方法包括以下步骤：将干燥形式的骨料压实成网状物，然后在使用时将骨料与复合水泥，水和砂块一起压实，形成待抛光的上表面。