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1. 发明授权

US6135694A Travel and fork lowering speed control based on fork load weight/tilt cylinder operation 有权
标题翻译：基于叉载重量/倾斜气缸操作的行程和叉降速度控制
公开(公告)号：US6135694A
公开(公告)日：2000-10-24
申请号：US163057
申请日：1998-09-29
申请人： Allen T. Trego , Daniel C. Magoto , Donald E. Luebrecht
发明人： Allen T. Trego , Daniel C. Magoto , Donald E. Luebrecht
IPC分类号： B66F9/22 , B66F9/24 , B66F9/16 , B66F9/20
CPC分类号： B66F9/22 , B66F9/24
摘要： A fork lift truck includes a body, a drive mechanism supported on the body for effecting movement of the body, and a fork carrying assembly carrying forks which can be moved in height between a lowered position and desired raised positions. A tilt cylinder is provided for tilting the forks through a fork tilt range. The truck further includes a pressure sensor capable of generating signals indicative of the weight of a load on the forks, a fork tilt position sensor capable of being activated when the forks are tilted to extremes of the fork tilt range, and a controller. The controller is coupled to the drive mechanism, the pressure sensor and the fork tilt position sensor. It causes the drive mechanism to effect movement of the body up to a first maximum speed when at least one of the pressure sensor generates a signal indicative of a load on the forks having a weight above a predetermined value and the tilt position sensor is activated, and causes the drive mechanism to effect movement of the body up to a second maximum speed which is greater than the first maximum speed when the pressure sensor generates a signal indicative of no load or a load on the forks having a weight below the predetermined value and the tilt position sensor is inactivated. The lowering speed of the forks can also or alternatively be increased under the same operating conditions.
摘要翻译：叉车包括主体，支撑在主体上用于实现主体运动的驱动机构，以及承载组件的叉子承载组件，叉组件能够在降低位置和期望的升高位置之间移动高度。倾斜气缸用于通过叉倾斜范围倾斜叉。叉车还包括压力传感器，其能够产生指示叉子上的负载的重量的信号;当叉子倾斜到叉倾斜范围的极端时能够激活的叉倾斜位置传感器以及控制器。控制器耦合到驱动机构，压力传感器和叉倾斜位置传感器。当压力传感器中的至少一个产生指示叉子上的负载的信号，其重量高于预定值并且倾斜位置传感器被激活时，使得驱动机构使身体的运动达到第一最大速度，并且当所述压力传感器产生指示没有负载的信号或具有重量低于所述预定值的货叉的负载时，所述驱动机构使所述主体的运动达到大于所述第一最大速度的第二最大速度，倾斜位置传感器失效。在相同的操作条件下，叉的降低速度也可以或者可选地增加。

4. 发明授权

US06533076B1 Materials handling vehicle mast height sensor 有权
标题翻译：物料搬运车桅高度传感器
公开(公告)号：US06533076B1
公开(公告)日：2003-03-18
申请号：US10068709
申请日：2002-02-06
申请人： Forrest A. Haverfield , Allen T. Trego
发明人： Forrest A. Haverfield , Allen T. Trego
IPC分类号： B66B300
CPC分类号： B66F9/0755
摘要： A knurled wheel is coupled to a sensor mounted to one mast member and the wheel is forced into another mast member so that the wheel/sensor rotate upon mast movement. The sensor generates signals, corresponding to mast movement, which are processed conventionally to determine mast height, etc. The knurled wheel forms a track on the contacted mast member and the knurl engages the track. The wheel can be forced into the mast member with a force of six to nine pounds. To enhance the versatility of the mast height sensing device, the thickness of the wheel can be made less than ⅛ inch, for example {fraction (1/16)} inch. The sensor can be an encoder or a sensor bearing and a heater can be provided for operation in cold environments to ensure rotation of the sensor under such conditions.
摘要翻译：滚花轮联接到安装到一个桅杆构件上的传感器，并且该轮被迫进入另一个桅杆构件，使得车轮/传感器在桅杆运动时旋转。传感器产生对应于桅杆运动的信号，其通常被传统地处理以确定桅杆高度等。滚花轮在接触的桅杆构件上形成轨道，并且滚花接合轨道。车轮可以用六到九磅的力量被迫进入桅杆构件。为了增强桅杆高度感测装置的多功能性，轮的厚度可以小于1/8英寸，例如1/16英寸。传感器可以是编码器或传感器轴承，并且可以提供加热器以在寒冷的环境中操作，以确保在这种条件下传感器的旋转。

5. 发明授权

US06883625B2 Supplemental jog and/or twist grip or other drive motor speed walk along controllers for walkie/rider pallet trucks 有权
标题翻译：补充慢跑和/或扭转手柄或其他驱动电机速度沿着对讲机/车手托盘车的控制器行走
公开(公告)号：US06883625B2
公开(公告)日：2005-04-26
申请号：US10213788
申请日：2002-08-07
申请人： Allen T. Trego , John I. Koeper , Robert J. Henshaw
发明人： Allen T. Trego , John I. Koeper , Robert J. Henshaw
IPC分类号： B62B5/06 , B62B5/08 , B62D51/00 , B62D51/04
CPC分类号： B62D51/001 , B62B5/063 , B62B5/087 , H01H2009/068 , H01H2300/026
摘要： Supplemental walk along control for walkie/rider pallet trucks is provided by supplemental controllers such as jog and coast release switches and/or twist grips (or other drive motor speed controllers) provided adjacent the base of load carrying forks. The supplemental controllers are enabled during coasting operation so that operators can advance to the base of the forks to accelerate the trucks between closely spaced picks located along substantially straight portions of pick routes. For application of the trucks' brakes, the operators activate the coast release switches to release the coast mode and enable deadman brake mechanisms to brake the trucks and/or by plug braking with the twist grips. A steering direction detector is provided to determine the direction of the steered wheel so that if the steered wheel is not directed substantially straight ahead, then operation of the truck from the supplemental controls is disabled.
摘要翻译：通过辅助控制器（例如在负载叉的基座附近设置的慢跑和惯性释放开关和/或扭转夹具（或其它驱动马达速度控制器））提供对步行/骑车托盘车的辅助行走。补充控制器在滑行操作期间启用，使得操作者可以前进到叉的基部，以在沿着拾取路径的大致直线部分定位的紧密间隔的拾取之间加速卡车。为了应用卡车制动器，操作人员激活海岸释放开关以释放海岸模式，并且使得制动器制动机构能够用卡车进行制动和/或通过扭杆的塞子制动。提供转向方向检测器以确定转向轮的方向，使得如果转向轮没有大致向前指向，则禁止来自辅助控制器的卡车的操作。

6. 发明授权

US06595306B2 Supplemental walk along control for walkie/rider pallet trucks 有权
标题翻译：辅助走路控制对讲机/车手托盘车
公开(公告)号：US06595306B2
公开(公告)日：2003-07-22
申请号：US09925268
申请日：2001-08-09
申请人： Allen T. Trego , John I. Koeper , Robert J. Henshaw
发明人： Allen T. Trego , John I. Koeper , Robert J. Henshaw
IPC分类号： B62D5104
CPC分类号： B62D51/001 , B62B5/063 , B62B5/087 , H01H2009/068 , H01H2300/026
摘要： Supplemental walk along control for walkie/rider pallet trucks is provided by supplemental jog switches and coast release switches provided adjacent to the base of load carrying forks. The supplemental jog switches are enabled during coasting operation so that operators can advance to the base of the forks to accelerate the trucks between closely spaced picks located along substantially straight portions of pick routes. For application of the trucks' brakes, the operators activate the coast release switches to release the coast mode and enable deadman brake mechanisms to brake the trucks. A steering direction detector is provided to determine the direction of the steered wheel so that if the steered wheel is not directed substantially straight ahead, then operation of the truck from the supplemental jog switches is disabled.
摘要翻译：通过辅助步行开关和靠近承载叉的底座设置的滑行释放开关提供对步行/搭车叉车的辅助行走。在惯性操作期间，辅助滚动开关被启用，使得操作者可以前进到叉的底部，以便在沿拾取路径的大致直线部分定位的紧密间隔的拾取之间加速卡车。对于卡车制动器的应用，操作人员激活海岸释放开关以释放海岸模式，并使得制动器制动机构能够刹车。提供转向方向检测器以确定转向轮的方向，使得如果转向轮没有大致向前指向，则来自补充点动开关的卡车的操作被禁用。

7. 发明授权

US6082212A Multi-function control handle 失效
标题翻译：多功能控制手柄
公开(公告)号：US6082212A
公开(公告)日：2000-07-04
申请号：US119100
申请日：1998-07-20
申请人： Brent A. Bergman , Allen T. Trego
发明人： Brent A. Bergman , Allen T. Trego
IPC分类号： G05G9/047 , G05G5/03
CPC分类号： G05G9/047 , G05G2009/04766 , G05G2009/04774 , Y10T74/20201
摘要： A handle mounted generally horizontally on a fork lift truck for controlling forward and reverse speed of movement of the truck and raising and lowering forks is carried by a control device. The control device includes a shaft with a centrally positioned spherical section contained in a socket in a support member. The shaft is therefore free to rotate about the center of the sphere. A ramp cam is mounted on the support member surrounding the shaft. A slider mounted on the shaft is pressed against the cam by action of a spring. This arrangement assures that the shaft and control handle remain centered until acted upon by an operator of the truck. Two linear potentiometers provide electrical output signals representing the X (horizontal) and Y (vertical) positions of the end of the shaft opposite the control handle. The cam is provided with four distinct compound surfaces. For vertical movement of the handle, the slopes of the two lower surfaces are greater than the slopes of the two upper surfaces. The slopes of each surface are also different in the forward and reverse direction. This arrangement provides the illusion that the same force is required to move the handle in any direction. A detent in the center of the cam requires a slightly greater force to move the handle from the center position.
摘要翻译：大体上水平地安装在叉式起重车上的把手用于控制卡车的前进和后退的速度以及提升和降低叉的手柄由控制装置承载。控制装置包括具有中心定位的球形部分的轴，容纳在支撑构件中的插座中。因此，轴可以围绕球体的中心自由旋转。斜坡凸轮安装在围绕轴的支撑构件上。安装在轴上的滑块通过弹簧的作用被压靠在凸轮上。这种布置确保轴和控制手柄保持居中，直到卡车的操作者作用。两个线性电位器提供表示与控制手柄相对的轴端部的X（水平）和Y（垂直）位置的电气输出信号。凸轮设有四个不同的复合表面。对于手柄的垂直运动，两个下表面的斜面大于两个上表面的斜面。每个表面的斜面在正向和反向方向上也不同。这种布置提供了在任何方向上移动手柄所需的相同的力的错觉。在凸轮中心的棘爪需要稍微更大的力来将手柄从中心位置移动。

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