公开(公告)号：US4979588A

公开(公告)日：1990-12-25

申请号：US478401

申请日：1990-02-12

申请人： Ronald L. Pike ,  Ronald W. Beckley ,  Donald C. Hade, Jr. ,  Robert D. Backer

发明人： Ronald L. Pike ,  Ronald W. Beckley ,  Donald C. Hade, Jr. ,  Robert D. Backer

IPC分类号： B66C15/06 ,  B66F11/04

CPC分类号： B66F11/046 ,  B66C15/06

摘要： An electrical deactivation circuit and a two piece overhead guard assembly including two separately movable bar members which extends upward and over the head of an operator located on the upper work platform of an aerial work platform. The guard bar members are connected to the frame of the upper work platform by a pair of movable support assemblies, the movement of which actuates impact detection induction type proximity switch means to interrupt electrical power applied to the electrical control circuits and stop the engine powering the aerial work platform. Each movable support assembly includes a pair of spring loaded mechanical subassemblies including a pair of clamp members between which is located an elongated coil spring whose stiffness is varied in accordance with the distance separation of the clamps. An inductive type proximity switch is located in the lower end portion of each spring to sense movement of the inner end of a respective guard bar member. Each proximity switch is connected in an electrial circuit having a built in time delay or lock out feature for applying power to the aerial work platform after a predetermined time delay and thereafter interrupting power when either guard bar member strikes or comes into contact with an external object or obstruction.

摘要翻译： 一种电动停用电路和两件式防护罩组件，包括两个分别可移动的杆构件，其在位于高空作业平台的上部工作平台上的操作者的头部上方和上方延伸。 保护杆构件通过一对可移动支撑组件连接到上部工作平台的框架，其移动致动冲击检测感应型接近开关装置，以中断施加到电气控制电路的电力并停止发动机为 高空作业平台。 每个可移动支撑组件包括一对弹簧加载的机械子组件，其包括一对夹紧构件，在其间位于其中刚度根据夹具的距离间隔而变化的细长螺旋弹簧。 电感型接近开关位于每个弹簧的下端部分中，以检测相应的保护杆构件的内端的运动。 每个接近开关连接在具有内置时间延迟或锁定特征的电气电路中，用于在预定时间延迟之后向空中工作平台施加电力，然后当两个保护杆构件撞击或与外部物体接触时中断电力 或阻塞。

公开(公告)号：US5021917A

公开(公告)日：1991-06-04

申请号：US471797

申请日：1990-01-29

申请人： Ronald L. Pike ,  Ronald W. Beckley

发明人： Ronald L. Pike ,  Ronald W. Beckley

IPC分类号： B66F11/04 ,  H01H47/00

CPC分类号： B66F11/046 ,  H01H47/002

摘要： A control panel enabling and automatically disabling system is coupled between a source of electrical power and a plurality of motion controls on an aerial work platform. Upon activation of a pushbutton type power enabling switch, power is coupled to all the motion controls for a predetermined fixed time period which when activated will couple power to a respective motion producing mechanism such as a boom actuator. If none of the motion controls are activated by an operator within this time period, a timer times out and the panel thereafter becomes inactive by interrupting the electrical power. However, if a motion command is effected by actuation of any one of the motion controls during this time period, the timer is automatically reset to zero time and held thereat until all motion commands cease, at which time the timer is restarted. The enabling switch cannot be defeated by a continuous activation thereof. The enabling switch must be released and pushed again to start a new cycle. Further if a motion command is generated by inadvertent movement of one of the motion controls prior to the power enabling switch being activated, the system will not activate. All motion commands must cease before operation of the enabling switch can activate the timer and energize the system.

摘要翻译： 控制面板启用和自动禁用系统耦合在电力源和高空作业平台上的多个运动控制之间。 在激活按钮式电源使能开关时，电力被连接到所有运动控制器预定的固定时间段，当预定的固定时间段被激活时，将功率耦合到相应的运动产生机构，例如起重臂致动器。 如果在该时间段内没有运动控制被操作者激活，定时器超时，并且面板随后通过中断电力而变得不活动。 然而，如果在该时间段期间通过致动任何一个运动控制来实现运动命令，则定时器自动复位为零时间并保持在该位置，直到所有运动命令停止，此时定时器重新起动。 使能开关不能被连续的激活所击败。 必须释放启用开关并再次按下才能开始新的循环。 此外，如果在启用电源使能开关之前，运动控制之一的无意移动产生运动命令，则系统将不会激活。 所有运动命令必须停止，使能开关可以激活定时器并给系统通电。

公开(公告)号：US4717801A

公开(公告)日：1988-01-05

申请号：US896904

申请日：1986-08-11

申请人： Charles A. Brolin ,  Ronald L. Pike ,  Dennis A. Jennerjohn

发明人： Charles A. Brolin ,  Ronald L. Pike ,  Dennis A. Jennerjohn

IPC分类号： H05B6/06 ,  B23K13/01 ,  B23K13/00

CPC分类号： B23K13/01

摘要： A welding control circuit for induction heating of a pair of articles to a welding temperature and for pressing the heated articles together. A pair of induction coils are positioned in a gap between the portions of the articles to be heated and a pair of temperature sensors monitor the temperature of both articles and controls heating rates so both articles reach a welding temperature at approximately the same time. The temperature sensors provide signals which cause the coils to be retracted from the gap and cause the heated articles to be pressed together to form a welded pair. When similar articles are to be welded together a single coil can be used to provide induction currents which heat the articles.

摘要翻译： 一种焊接控制电路，用于将一对物品感应加热到焊接温度并将被加热物体压在一起。 一对感应线圈被定位在被加热物品的部分之间的间隙中，一对温度传感器监测两个物品的温度并控制加热速率，因此两个物品大致同时达到焊接温度。 温度传感器提供使线圈从间隙缩回并使被加热物品被压在一起以形成焊接对的信号。 当将类似物品焊接在一起时，可以使用单个线圈来提供加热制品的感应电流。