-
公开(公告)号：US20140010525A1
公开(公告)日：2014-01-09
申请号：US13540907
申请日：2012-07-03
申请人： Leonard T. Chapman
发明人： Leonard T. Chapman
IPC分类号： G03B17/00
CPC分类号： F16M11/2057 , F16M11/08 , F16M11/18 , F16M2200/024 , G03B17/561
摘要： A camera swing head includes a hub having a hole ring including a plurality of radially spaced apart holes. A swing plate is rotatably attached to the hub. An indexing and locking assembly allows the swing to be quickly and easily rotated to a desired position and then locked into place. The indexing and locking assembly may include a lever pivotally attached to the swing plate, and a plunger pivotally attached to a front end of the lever. Pivoting movement of the lever may move the plunger linearly on a radial axis intersecting a center of the hub. A release pin is movable from, a first position, wherein the release pin causes the plunger to be held out from engagement to with one of the radially spaced apart holes, to a second position, wherein the plunger is movable into engagement with one of the radially spaced apart holes.
摘要翻译： 照相机摇头包括具有孔环的轮毂，该孔环包括多个径向隔开的孔。 旋转板可旋转地附接到轮毂。 分度和锁定组件允许摆动快速且容易地旋转到期望位置，然后锁定到位。 分度和锁定组件可以包括枢转地附接到摆动板的杆和枢轴地附接到杠杆的前端的柱塞。 杆的枢转运动可以在与轮毂的中心相交的径向轴线上线性移动柱塞。 释放销可从第一位置移动，其中释放销使柱塞从与第一位置之一的接合延伸到第二位置，其中柱塞可移动地与第一位置中的一个接合 径向间隔开的孔。
-
公开(公告)号：US20130113599A1
公开(公告)日：2013-05-09
申请号：US13289828
申请日：2011-11-04
申请人： Leonard T. Chapman
发明人： Leonard T. Chapman
IPC分类号： H01C10/00
CPC分类号： H01H23/143 , H01H23/162 , H01H23/30
摘要： A controller for a camera crane has a rocker button pivotally supported in or on a controller housing about a first pivot axis. A shaft of an electrical component, such as a variable resistor, is on a second pivot axis spaced apart from the first pivot axis. An arm is attached to the shaft. A spring urges the arm to a center position. Movement of the rocker button moves the arm. Due to the offset of the first and second pivot axes, movement of the rocker button results in proportionally reduced movement of the shaft of the electronic component. Smooth crane arm movements are readily achieved as the controller is less sensitive to the operators hand or finger movements.
摘要翻译： 用于照相机起重机的控制器具有绕第一枢转轴线枢转地支撑在控制器壳体中或其上的摇杆。 诸如可变电阻器的电气部件的轴在与第一枢转轴线间隔开的第二枢转轴线上。 臂连接到轴上。 弹簧将手臂推到中心位置。 摇杆按钮的移动使手臂移动。 由于第一和第二枢转轴线的偏移，摇杆按钮的移动导致电子部件的轴的运动成比例地减小。 由于控制器对操作者的手或手指运动不那么敏感，所以可以轻松实现平滑的起重臂手臂运动。
-
公开(公告)号：US08403486B2
公开(公告)日：2013-03-26
申请号：US12537200
申请日：2009-08-06
申请人： Leonard T. Chapman
发明人： Leonard T. Chapman
CPC分类号： B66F11/048 , B66C23/701
摘要： A telescopically extendible camera crane arm includes a second section telescopically movable within a first section. A first actuator extends the second section and a second actuator retracts the second section. A control valve has first and second ports connected to provide pressurized fluid to the first and second actuators. An inlet port of the control valve is connected to a pressurized fluid source, such as a pump or accumulator of a hydraulic system. The control valve has extend, off, and retract positions. The control valve provides a threshold amount of fluid pressure to the first and second actuators when in the off position, and provides a greater than the threshold amount of fluid pressure to the first and second actuators, when in the extend or retract positions. A stop valve may be connected to an outlet port of the control valve, with the stop valve having an open position wherein fluid can flow freely out of the outlet port, and a closed position wherein the stop valve stops fluid flow out of the outlet port. The threshold amount of fluid pressure maintains the cables and/or other linkages of the arm under tension or compression. This places the stationery arm in a balanced equilibrium which provides for very sensitive and rapid control of arm movements.
摘要翻译： 一种可伸缩的相机起重机臂包括可在第一部分内可伸缩移动的第二部分。 第一致动器延伸第二部分，而第二致动器缩回第二部分。 控制阀具有连接到第一和第二端口以向第一和第二致动器提供加压流体。 控制阀的入口连接到加压流体源，例如液压系统的泵或蓄能器。 控制阀具有延伸，关闭和缩回位置。 当处于关闭位置时，控制阀向第一和第二致动器提供阈值量的流体压力，并且当处于伸出或缩回位置时，向第一和第二致动器提供大于阈值的流体压力量。 截止阀可以连接到控制阀的出口，止动阀具有打开位置，其中流体可以自由流出出口，并且关闭位置，其中止动阀阻止流体从出口端口流出 。 流体压力的临界量将臂的电缆和/或其它连杆保持在张力或压缩状态。 这使得文具手臂处于平衡的平衡状态，可以非常灵敏和快速地控制手臂的运动。
-
公开(公告)号：USD668805S1
公开(公告)日：2012-10-09
申请号：US29409880
申请日：2011-12-29
-
公开(公告)号：US20120200722A1
公开(公告)日：2012-08-09
申请号：US13406353
申请日：2012-02-27
IPC分类号： H04N5/225
CPC分类号： H04N5/23248 , B66F11/048 , F16M11/04 , F16M11/105 , F16M11/12 , F16M11/18 , F16M11/2064 , F16M11/2092 , F16M11/24 , F16M11/42 , F16M2200/063 , H04N5/23258 , H04N5/23287
摘要： A stabilized camera system has a roll frame formed as a parallelogram linkage and pivotably attached to a pan frame. A tilt frame is pivotably attached to the roll frame. Control circuits are provided to compensate for drift, to allow manual aiming of the camera during stabilized camera operation, and for providing rapid leveling. The stabilized camera system is compact with low moments of inertia to allow rapid movements.
摘要翻译： 稳定的照相机系统具有形成为平行四边形连杆并且可枢转地附接到平台框架的辊框架。 倾斜框架可枢转地附接到辊框架。 提供控制电路以补偿漂移，以允许在稳定的相机操作期间手动对准相机，并且用于提供快速调平。 稳定的相机系统紧凑，具有低转动惯量，可以快速移动。
-
公开(公告)号：USD657394S1
公开(公告)日：2012-04-10
申请号：US29402985
申请日：2011-09-29
-
公开(公告)号：US08100591B2
公开(公告)日：2012-01-24
申请号：US12780793
申请日：2010-05-14
IPC分类号： G03B17/00
CPC分类号： F16M11/105 , F16M11/18 , F16M11/2064 , F16M11/28 , F16M11/42 , G03B17/561
摘要： A method for stabilizing a camera platform includes generating a first signal from a platform sensor, such as a gyro sensor, on the camera platform indicative of a change in angular position of the camera platform. The first signal is added to a control signal provided from a camera platform position controller, typically operated by the camera operator. A first correction value based on the sum of the first signal and the control signal is calculated. A second correction value is calculated based on a signal from an encoder associated with a motor linked to the camera platform. Adding the first correction value and the second correction value provides a motor control signal which is amplified and used to control the motor.
摘要翻译： 用于稳定相机平台的方法包括从相机平台上的平台传感器（例如陀螺仪传感器）生成指示相机平台的角位置的变化的第一信号。 第一个信号被添加到由相机平台位置控制器提供的控制信号，通常由照相机操作者操作。 计算基于第一信号和控制信号之和的第一校正值。 基于与连接到相机平台的马达相关联的编码器的信号来计算第二校正值。 添加第一校正值和第二校正值提供了被放大并用于控制电动机的电动机控制信号。
-
公开(公告)号：US08033742B1
公开(公告)日：2011-10-11
申请号：US12761199
申请日：2010-04-15
申请人： Leonard T. Chapman
发明人： Leonard T. Chapman
IPC分类号： G03B17/00
CPC分类号： B66F11/048 , F16M11/105 , F16M11/18 , F16M11/2021 , F16M11/2064 , F16M11/28 , F16M11/42 , F16M2200/065 , F16M2200/08 , G03B17/561
摘要： A camera crane includes an arm having a back section, a middle section telescopically extendible into and out of the back section, and a front section telescopically extendible into and out of the middle section. A camera platform is pivotally attached at or near the front end of the front section. A counterweight is movable along the back section. An arm support can support the back section at two or more positions. Consequently the pivot axis of the arm can be shifted to the front or rear, to change rear clearance requirements, counterweight requirements, and the reach of the arm. An electronic controller is linked to a motor and a sensor on a camera head, with the motor acting to keep the head level.
摘要翻译： 相机起重机包括具有后部的臂，可伸缩地伸入和伸出后部的中间部分，以及可伸缩地伸入和移出中间部分的前部。 相机平台在前部的前端处或附近枢转地附接。 配重可以沿着后部移动。 手臂支撑件可以在两个或更多个位置支撑后部。 因此，臂的枢转轴可以向前或向后移动，以改变后间隙要求，配重要求和臂的伸展。 电子控制器连接到电动机和摄像机头上的传感器，电机用于保持头部水平。
-
公开(公告)号：US20110200320A1
公开(公告)日：2011-08-18
申请号：US12706805
申请日：2010-02-17
CPC分类号： B66C13/066 , B66F11/048 , F16M11/10 , F16M11/18 , F16M11/2064 , F16M11/28 , F16M11/42 , F16M2200/041 , G03B17/561
摘要： A camera platform may be stabilized by reducing or avoiding oscillating movement, when active stabilization systems are not used. A passive dampener resists the back driving of the motors used in the active stabilization system. This dampening or resistance to back driving the motors in turn dampens movement of the camera platform. Oscillations are reduced or avoided and the camera platform may return more quickly and smoothly to a level position. The dampener may be provided as an add-on or temporarily electrically switched in accessory. The dampener may include a circuit that connects the first and second motors of the active stabilization system in series, and connects the series output of the two motors to a variable resistor through a rectifier. A transistor may be with the variable resistor to provide for more linear adjusting and a more compact variable resistor.
摘要翻译： 当不使用主动稳定系统时，相机平台可以通过减少或避免摆动来稳定。 无源阻尼器抵抗主动稳定系统中使用的电机的后驱动。 这种阻尼或阻力驱动电机反过来会抑制相机平台的移动。 减少或避免振荡，并且相机平台可以更快速和平稳地返回到水平位置。 阻尼器可以作为附件或临时电气切换附件提供。 阻尼器可以包括将主动稳定系统的第一和第二电动机串联连接的电路，并且通过整流器将两个电动机的串联输出连接到可变电阻器。 晶体管可以用可变电阻器来提供更多的线性调节和更紧凑的可变电阻器。
-
公开(公告)号：US07854555B2
公开(公告)日：2010-12-21
申请号：US11836509
申请日：2007-08-09
申请人： Leonard T. Chapman
发明人： Leonard T. Chapman
IPC分类号： G03B17/00
CPC分类号： F16M11/42 , B66F11/048 , F16M11/28 , F16M2200/041 , G03B17/561
摘要： A camera crane has a telescopically extendible arm with a camera platform supported at the front end of the arm. A mechanical leveling system is linked to the camera platform to keep the camera platform in a substantially horizontal or level position, regardless of the elevation angle of the arm. A counter weight moves along the arm as the arm extends and retracts, to help keep the arm balanced. A stabilizing system provides instantaneous corrective movements to the camera platform, to keep the camera platform level. The stabilizing system includes a sensor for sensing the angular position of the camera platform. An electronic controller provides a positive preload to a first motor, and a negative preload to the second motor, driving the camera platform, to avoid backlash. Upon sensing an out of level position, the controller provides a corrective signal to the motors, causing both motors to drive the camera platform back towards level.
摘要翻译： 相机起重机具有可伸缩臂，其臂支撑在相机平台的前端。 机械调平系统连接到相机平台，以保持相机平台处于基本水平或水平位置，而与臂的仰角无关。 当手臂伸缩时，平衡重将沿着手臂移动，以帮助保持手臂平衡。 稳定系统为摄像机平台提供即时校正动作，以保持摄像机平台水平。 稳定系统包括用于感测相机平台的角位置的传感器。 电子控制器为第一电动机提供正的预负载，并且对第二电动机负负载，驱动摄像机平台，以避免反向间隙。 在感测到电平不足的位置之后，控制器向电动机提供校正信号，使得两个电动机将摄像机平台驱动回到水平面。
-
-
-
-
-
-
-
-
-
搜索结果
117 条记录 (耗时 0.02 秒)
