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公开(公告)号：US5959421A
公开(公告)日：1999-09-28
申请号：US1518
申请日：1997-12-31
CPC分类号： B60L15/20 , G01P3/487 , G05B2219/37094 , G05B2219/41245 , G05B2219/45049 , Y02T10/645 , Y02T10/7275
摘要： A motor direction control device id used for electromotive vehicles which has an electric motor adapted to cause the vehicles to move forwards and backwards. The motor direction control device includes a direction control level shiftable from a neutral position into forward or reverse position. Operatively connected to the direction lever is an elongated pliable strip which is slidable along a predefined moving way by the shifting operation of the direction control lever and carries a permanent magnet. First and second magnetolectric sensors are arranged in a spaced-apart relationship with each other along the moving way of the elongated strip, each of the magnetoelectric sensors capable of generating, when left deactivated, a position signal of first logic level and activatable by the permanent magnet to produce a position signal of second logic level as the direction control lever is shifted into the forward or reverse position. Responsive to the position signals of first and second logic levels, a microprocessor is adapted to control the direction of rotation of the electric motor. A Hall generator may be utilized as the magnetoelectric sensors.
摘要翻译： 一种用于电动车辆的电动机方向控制装置id，其具有适于使车辆向前和向后移动的电动机。 电动机方向控制装置包括可从中立位置转换到向前或反向位置的方向控制电平。 可操作地连接到方向杆的是细长的柔韧条，其可以通过方向控制杆的换档操作沿预定的移动方式滑动并且携带永磁体。 第一和第二磁介电传感器沿着细长条的移动方式彼此间隔开地布置，每个磁电传感器能够在停用时产生第一逻辑电平的位置信号并由永久性可激活 当方向控制杆移动到正向或反向位置时产生第二逻辑电平的位置信号。 响应于第一和第二逻辑电平的位置信号，微处理器适于控制电动机的旋转方向。 可以使用霍尔发生器作为磁电传感器。
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公开(公告)号：US4567467A
公开(公告)日：1986-01-28
申请号：US582113
申请日：1984-02-21
CPC分类号： B62D11/02 , G01D5/2497 , H03M1/285
摘要： Information related to the rotary angular position of a steerable wheel portion of an electric vehicle is required for proper control of the vehicle and especially for differential control of the driven wheels of the vehicle. Available rotary position encoders are expensive, prone to damage in an industrial environment, and sensitive to misalignment between the encoder components. The instant apparatus provides a simple and durable rotary position encoder having a plurality of sensors positioned on a first mounting member and a plurality of sensible members positioned on a second mounting member. The apparatus is digital in design and the particular location and arrangement of the sensors and sensible members advantageously compensates for overtravel and misalignment of the encoder components.
摘要翻译： 需要与电动车辆的可转向轮部的旋转角位置相关的信息，以适当地控制车辆，特别是用于车辆的从动轮的差速控制。 可用的旋转位置编码器价格昂贵，容易在工业环境中损坏，并且对编码器部件之间的不对准敏感。 该瞬时装置提供了一种简单耐用的旋转位置编码器，其具有定位在第一安装构件上的多个传感器和位于第二安装构件上的多个敏感构件。 该设备是数字设计的，并且传感器和敏感部件的特定位置和布置有利地补偿了编码器部件的超程和未对准。
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公开(公告)号：US4330007A
公开(公告)日：1982-05-18
申请号：US245237
申请日：1980-05-05
申请人： Edward V. Leskovec
发明人： Edward V. Leskovec
CPC分类号： H01H3/0206 , Y10S60/911 , Y10T137/85994
摘要： A number of systems exist wherein a plurality of hydraulic motors (28a, 28b, 28c) receive pressurized fluid from a single pump (14) which is itself driven by an electric motor (12). Apparatus has been available for adjusting the power supplied to the electric motor (12), and thereby adjusting the pump (14) flow rate, in response to the operator activating one or more of the hydraulic motors (28a, 28b, 28c). However, such apparatus has generally been bulky, complicated and/or difficult to install and/or service. An improvement is provided wherein a single switch (22) is placed in either an open or closed position as an elongated member (34) placed transversely to a plurality of generally parallel rod member (20a, 20b, 20c) is rotated in response to longitudinal travel in either direction from a neutral position (32) of one of the rod member (20a, 20b, 20c). Longitudinal movement of each of the rod members (20a, 20b, 20c), controls, via a respective valve (16a, 16b, 16c), the action of the respective hydraulic motor (28a, 28b, 28c).
摘要翻译： PCT No.PCT / US80 / 00519 Sec。 371日期：1980年5月5日 102（e）日期1980年5月5日PCT提交1980年5月5日PCT公布。 公开号WO81 / 03209 日期为1981年11月12日。存在多个系统，其中多个液压马达（28a，28b，28c）从单个泵（14）接收加压流体，该泵自身由电动机（12）驱动。 响应于操作者激活一个或多个液压马达（28a，28b，28c），装置已经可用于调节供应到电动机（12）的功率，从而调节泵（14）的流量。 然而，这种装置通常是笨重的，复杂的和/或难以安装和/或服务的。 提供了一种改进，其中，当横向于多个大致平行的杆构件（20a，20b，20c）的纵向构件（34）响应于纵向而旋转时，单个开关（22）被放置在打开或关闭位置 从杆构件（20a，20b，20c）中的一个的中立位置（32）向任一方向移动。 每个杆构件（20a，20b，20c）的纵向运动通过相应的阀（16a，16b，16c）控制各液压马达（28a，28b，28c）的作用。
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公开(公告)号：US4009765A
公开(公告)日：1977-03-01
申请号：US575303
申请日：1975-05-07
CPC分类号： B66F9/08 , F16G11/12 , Y10T403/295
摘要： An adjustable anchor employed within a triple-lift fork mast unit of a type wherein opposing ends of two lift chains are adjustably secured to a common base structure such as an intermediate upright unit, the anchor including a housing attached to the intermediate upright unit and defining a bore with a spherical taper formed about one end of the bore, an adjusting sleeve arranged within the bore and having a spherical shoulder for bearing engagement with the spherical taper, a portion of the sleeve being knurled to facilitate its rotation within the bore for adjusting its threaded engagement with a connector secured to one of the lift chains, the other chain also being adjustably secured to the housing. The adjustable anchor is also contemplated as an intermediate article of manufacture wherein the housing is suitable for engagement to a base structure such as the intermediate upright unit and further including retaining means for maintaining the sleeve within the bore prior to its threaded engagement with the connector for the lift chain.
摘要翻译： 一种可调节的锚，其采用的是一种三升叉桅杆单元，其中两个提升链的相对端可调节地固定到诸如中间直立单元的公共基座结构上，该锚固件包括附接到中间直立单元的壳体，并且限定 具有围绕所述孔的一端形成的球形锥形的孔，布置在所述孔内并具有用于与所述球形锥形轴承接合的球形肩部的调节套筒，所述套筒的一部分被滚花以便于其在所述孔内旋转以用于调节 其与固定到一个升降链的连接器的螺纹接合，另一个链条也可调节地固定到壳体。 也可设想可调节的锚固件作为中间制品，其中壳体适于接合到诸如中间直立单元的基部结构，并且还包括用于在与连接器螺纹接合之前将套筒保持在孔内的保持装置， 电梯链。
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公开(公告)号：US4506750A
公开(公告)日：1985-03-26
申请号：US514436
申请日：1983-07-18
申请人： Edward V. Leskovec
发明人： Edward V. Leskovec
CPC分类号： B66F9/20 , B66F9/07527 , B66F9/07545
摘要： A hood (18) and a control device (38) mounted on a vehicle (10) adjacent the hood (18) obstructs access to a source of motive power (24) of the vehicle (10), interferes with removal of the source of motive power (24) resulting in damage to the control device (38) and hood (18), and requires additional steps be taken to prepare the vehicle (10) for servicing. A pivotal hood arrangement (16) having a hood (18) and a control device (38) mounted on the hood (18) is provided. The control device (38) is movable with the hood into an opening (48) in the vehicle (10) to permit maximum movement of the hood (18) to an uncovering position (28). A closing device (52) is provided for closing the opening (48) and a retainer (74) is provided for holding the closing device (52) at a closed position (59). Thus, the problems of access, interference, damage and additional steps are eliminated. The pivotal hood arrangement (16) is particularly suited for use in a lift truck (10).
摘要翻译： 安装在靠近发动机罩（18）的车辆（10）上的罩（18）和控制装置（38）阻碍进入车辆（10）的动力源（24），从而干扰车辆 动力（24）导致控制装置（38）和罩（18）的损坏，并且需要采取额外的步骤来准备车辆（10）进行维修。 提供了一种具有罩（18）和安装在罩（18）上的控制装置（38））的枢转罩装置（16）。 控制装置（38）可以通过罩移动到车辆（10）中的开口（48）中，以允许罩（18）最大程度地移动到露出位置（28）。 提供关闭装置（52）以关闭开口（48），并且设置有用于将关闭装置（52）保持在关闭位置（59）的保持器（74）。 因此，消除了访问，干扰，损坏和附加步骤的问题。 枢轴式排气罩（16）特别适用于起重车（10）。
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公开(公告)号：US4219302A
公开(公告)日：1980-08-26
申请号：US877052
申请日：1978-02-13
申请人： Edward V. Leskovec
发明人： Edward V. Leskovec
CPC分类号： B66F9/08
摘要： A lift truck having a mast assembly for lifting a load. The assembly includes a first fixed pair of spaced-apart uprights and a second movable pair of spaced-apart uprights with the second pair nested for vertical translation within the first pair, and a carriage coupled to the second pair for vertical translation in relation to the second pair. Two chains, which extend over two sheaves connected to a cross-member fixed to the upper ends of the second pair of uprights, have one end connected to a first hydraulic cylinder and their other end to the carriage. Second and third hydraulic cylinders, behind the first and second pair, are coupled to respective third and fourth sheaves about which extend additional chains having one end connected to the fixed uprights and the other end connected to the movable uprights. The first hydraulic cylinder lifts the carriage in relation to all the uprights and the second and third hydraulic cylinders simultaneously raise the second pair of uprights and the carriage. The second and third hydraulic cylinders are anchored on a cross-brace intermediate the ends of the uprights and acted on by a fourth hydraulic cylinder to tilt the assembly.
摘要翻译： 具有用于提升负载的桅杆组件的起重车。 组件包括第一固定的一对间隔开的立柱和第二可移动的间隔开的立柱，其中第二对嵌套用于第一对内的垂直平移，以及联接到第二对的托架，用于相对于第二对垂直平移 第二对 连接在固定于第二对立柱的上端的横梁上的两个滑轮上延伸的两个链条，其一端连接到第一液压缸，而另一端与托架相连。 第二和第三液压缸在第一和第二对之后被联接到相应的第三和第四滑轮，围绕所述第三和第四滑轮延伸一个链，其一端连接到固定立柱，而另一端连接到可动立柱。 第一液压缸相对于所有立柱提升滑架，并且第二和第三液压缸同时升高第二对立柱和滑架。 第二和第三液压缸被锚定在立柱的两端的交叉支架上，并由第四液压缸作用以使组件倾斜。
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公开(公告)号：US3999267A
公开(公告)日：1976-12-28
申请号：US615649
申请日：1975-09-22
CPC分类号： B66F9/08 , Y10T29/49641 , Y10T29/49904
摘要： A method for assembling a lift truck mast having a slider element positioned within a channel element.
摘要翻译： 一种用于组装具有定位在通道元件内的滑块元件的升降车桅杆的方法。
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公开(公告)号：US4751983A
公开(公告)日：1988-06-21
申请号：US18557
申请日：1987-02-25
CPC分类号： B66F9/0755
摘要： Sensors associated with load carrying members are inaccurate, incorrectly sense the position of the load, and are subject to impact forces which cause premature sensor failure. A load lifting device having a load carrying member and first and second sensors and first and second reflectors on the load carrying member is provided. The sensors are mounted on a first end portion of load carrying member at longitudinally spaced apart locations and the first and second reflectors are mounted on a second end portion of the load carrying member at spaced apart locations on the second end portion. The first sensor delivers a first signal to the first reflector and receives a reflection of the first signal, and the second sensor delivers a second signal to the second reflector and receives a reflection of the first signal from the second reflector. The problems associated with inaccurate sensing of load position, damage to the sensors by impact, and premature wear due to cyclical forces are substantially reduced. The load lifting device is particularly suited for use on a material handling vehicle of the automatic guided vehicle type.
摘要翻译： 与承载构件相关的传感器不准确，不正确地感测到负载的位置，并且受到导致传感器过早故障的冲击力。 提供了一种负载提升装置，其具有负载承载构件和负载承载构件上的第一和第二传感器以及第一和第二反射器。 传感器在纵向间隔开的位置处安装在承载构件的第一端部上，并且第一和第二反射器在第二端部上的间隔开的位置安装在承载构件的第二端部上。 第一传感器向第一反射器传送第一信号并且接收第一信号的反射，并且第二传感器将第二信号传递到第二反射器并且接收来自第二反射器的第一信号的反射。 与负载位置的不准确感测，冲击时对传感器的损坏以及由于周期性力引起的过早磨损相关的问题大大减少。 负载提升装置特别适用于自动导向车型的物料搬运车辆。
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公开(公告)号：US4355695A
公开(公告)日：1982-10-26
申请号：US228812
申请日：1980-10-20
申请人： Edward V. Leskovec
发明人： Edward V. Leskovec
IPC分类号： B60K1/04
CPC分类号： B60K1/04
摘要： A restraining device for removable components of vehicles, such as the battery unit (26) of an electrically powered lift truck. The vehicle has an enclosure frame (14) having opposite sides (16,20) each of which has an aperture (30,28) through which passes in a longitudinally slidable fashion a restraining bar (34) positionable to a locked position preventing dislocation of the removable component (26). The restraining bar (34) may be fixed against longitudinal movement by affixing it to the enclosure frame (14) with a locking means (42). If the restraining bar (34) is not in its locked position a pivotably positional cover (52) overlying both the removable component (26) and the restraining bar (34) cannot be placed in an operating position owing to contact between the restraining bar (34) and a downwardly extending edge portion (58) of the cover (52).
摘要翻译： PCT No.PCT / US80 / 01396 Sec。 371日期1980年10月20日 102（e）1980年10月20日PCT申请1980年10月20日PCT公布。 公开号WO82 / 01353 日期：1982年4月29日。一种用于车辆的可拆卸部件的限制装置，例如电动起重车的电池单元（26）。 车辆具有具有相对侧面（16,20）的外壳框架（14,20），每个侧壁具有一个孔（30,28），通过该开口可沿纵向滑动的方式通过可定位到锁定位置的限制杆（34），防止位错 可移动部件（26）。 限制杆（34）可以通过用锁定装置（42）将其固定到外壳框架（14）而抵抗纵向运动。 如果限制杆（34）不处于其锁定位置，则可移动部件（26）和限制杆（34）上的可枢转位置的盖（52）不能被放置在操作位置，因为限制杆 34）和盖（52）的向下延伸的边缘部分（58）。
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公开(公告)号：US4065112A
公开(公告)日：1977-12-27
申请号：US716847
申请日：1976-08-23
CPC分类号： F15B15/227 , B66F3/32 , B66F9/22
摘要： Cushioning apparatus for cushioning a hydraulic jack is disclosed which includes a plunger reciprocably mounted within a blind bore. The plunger sequentially closes off a plurality of axially spaced orifices provided through the wall of the bore as the plunger moves from a first position adjacent the open end of the bore to a second position adjacent its closed end, thereby progressively restricting the escape of fluid from the bore so as to slow the movement of one of the telescopic members of the jack toward another.
摘要翻译： 公开了用于缓冲液压千斤顶的缓冲装置，其包括可往复运动地安装在盲孔内的柱塞。 当柱塞从邻近孔的开口端的第一位置移动到邻近其封闭端的第二位置时，柱塞顺序地封闭通过孔的壁提供的多个轴向间隔开的孔，从而逐渐地限制流体从 该孔以便使千斤顶的伸缩构件之一的运动减慢。
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