公开(公告)号：EP2236697B1

公开(公告)日：2017-10-25

申请号：EP10003221.8

申请日：2010-03-25

申请人： Wacker Neuson Production Americas LLC

发明人： Grahl, Scott

IPC分类号： E04F21/24

CPC分类号： E04F21/247

公开(公告)号：EP2025831A3

公开(公告)日：2012-08-08

申请号：EP08014459.5

申请日：2008-08-13

申请人： Wacker Neuson Production Americas LLC

发明人： Grahl, Scott

IPC分类号： E04F21/24

CPC分类号： E04F21/247

摘要： A self-propelled concrete finishing trowel has a transport system or dolly that allows the towel to be moved manually. The transport system includes wheels that are connected to a frame of the trowel by a connector such as a rotatable shaft. A single lift device such as a jack is coupled to the connector such that operation of the lift device translates both wheels relative to the frame. The transport system allows a user to quickly deploy the wheels for non-use transportation. The wheels are also located within the footprint of the trowel so as not to interfere with a finishing operation and are positioned to maximize stability.

公开(公告)号：EP2468983A2

公开(公告)日：2012-06-27

申请号：EP11009953.8

申请日：2011-12-19

申请人： Wacker Neuson Production Americas LLC

发明人： Lickel, Timothy J. ,  Grahl, Scott

IPC分类号： E04F21/24

CPC分类号： E04F21/247 ,  E04F21/245 ,  E04F21/248

摘要： A self-propelled concrete finishing trowel has an integrated transport system that allows the towel to be moved from location to location. The transport system includes a pair of spaced wheel assemblies, each including a pair of wheels that are connected to a frame of the trowel. The wheels of each respective wheel assembly are connected to one another via a powered actuator such as a double acting hydraulic cylinder. The powered actuator is actuatable to raise and lower the first and second wheels from a stowed position in which the wheels are located above the ground and the blades are supported on the ground to a deployed position in which the wheel are supported on the ground and the blades are raised from the ground.

摘要翻译： 自推式混凝土精修整t刀具有一个综合运输系统，可以将毛巾从一个位置移动到另一个位置。 运输系统包括一对间隔开的轮组件，每个轮组件包括连接到t刀的框架的一对轮子。 各个车轮组件的车轮经由动力致动器（例如双作用液压缸）彼此连接。 动力致动器是可致动的，以使第一轮和第二轮从其中轮位于地面之上并且叶片被支撑在地面上的收起位置升高和降低到展开位置，在该展开位置轮被支撑在地面上， 刀片从地面抬起。

公开(公告)号：EP2468982A2

公开(公告)日：2012-06-27

申请号：EP11009952.0

申请日：2011-12-19

申请人： Wacker Neuson Production Americas LLC

发明人： Grahl, Scott

IPC分类号： E04F21/24

CPC分类号： E04F21/245 ,  E04F21/247

摘要： A self-propelled concrete finishing trowel has an electronically controlled engine droop control to prevent stalling of the trowel's engine during overload conditions. The engine droop control includes an engine speed sensor that measures operating speed of the engine and a controller that adjusts operation of a hydrostatic drive system of the trowel based on feedback received from the engine speed sensor to reduce the power draw on the engine during overload conditions. The hydrostatic drive system is powered by the engine to rotate one or more finishing blade arrangements, and under normal operating conditions, is driven by a controller to rotate the blade arrangements at an operator desired speed, such as input by a foot pedal. During overloading conditions, the controller overrides the operator input to drive the hydrostatic drive system to match an operating speed supported by the overloaded engine to reduce the power draw on the engine and thereby prevent engine stalling.

摘要翻译： 自行式混凝土精修整镘刀有电控发动机下垂控制，以防止过载情况下抹子的发动机熄火。 发动机下垂控制包括发动机速度传感器那样的发动机和控制器的措施操作速度并bestimmt基于反馈的镘刀的静液压驱动系统的外科手术从发动机速度传感器，以减少在过载条件下对发动机的功率提取接收 ， 静液压驱动系统是由发动机提供动力以旋转的一个或多个精整刀片布置，以及在正常工作条件下，由控制器驱动的在操作者所希望的速度，颜色旋转在叶片的安排：例如通过脚踏板输入。 在过载条件下，控制器将覆盖操作者输入以驱动静液压驱动系统，以匹配于由过载引擎所支持，以减少对发动机的功率牵引，从而防止发动机熄火的工作速度。

公开(公告)号：EP2236697A3

公开(公告)日：2012-01-11

申请号：EP10003221.8

申请日：2010-03-25

申请人： Wacker Neuson Production Americas LLC

发明人： Grahl, Scott

IPC分类号： E04F21/24

CPC分类号： E04F21/247

摘要： A self-propelled concrete finishing trowel (20) has a power steering system (22) that facilitates operator selection of a desired steering performance response of the trowel. The power steering system includes a controller that communicates operator steering instructions from one or more joysticks and the powered actuators associated with the driven shafts. A selector allows the operator to select one or more preset steering modes, each of which has a different set of steering response characteristics for a given range of joystick motion.

摘要翻译： 自走式混凝土整理t刀（20）具有动力转向系统（22），其便于操作者选择t刀所需的转向性能响应。 动力转向系统包括控制器，该控制器与来自一个或多个操纵杆的操作者操纵指令和与从动轴相关联的动力传动器进行通信。 选择器允许操作者选择一个或多个预设转向模式，每个预设转向模式对于给定范围的操纵杆运动具有不同的转向响应特性集合。