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1.发明授权Rotatable load clamp adapted for selective load positioning in response to selective rotational positioning of clamp 失效适用于响应于夹具的选择性旋转定位的选择性载荷定位的可旋转载荷夹具
公开(公告)号：US4177000A
公开(公告)日：1979-12-04
申请号：US888925
申请日：1978-03-22
CPC分类号： B66F9/184 , Y10S414/124
摘要： A selectively rotatable load clamp for lift trucks, having a pair of openable and closable clamp arms. The clamp arms are capable of shifting the position of a load relative to the lift truck by movement of the clamp arms in unison, by which the load may be moved relative to the lift truck between a position of equal extension, wherein the forward ends of the clamp arms extend a substantially equal distance forwardly of the lift truck, and a position of unequal extension wherein the forward end of one clamp arm extends a greater distance forwardly than the forward end of the other clamp arm. The fluid motor apparatus for accomplishing such shifting function is selectively actuatable only in certain predetermined rotation positions of the clamp, that is, those positions where the two clamp arms are disposed at substantially a 45.degree. angle relative to horizontal. A valve assembly responsive to the rotational position of the clamp permits the selective actuation of the shifting function in such position, while preventing the selective opening or closing of the clamp arms. Conversely, when the clamp arms are placed either one above the other or side-by-side, the selective opening or closing of the arms is permitted while the actuation of the shifting function is prevented.
摘要翻译： 一种用于起重车的可选择性旋转的负载夹具，具有一对可开启和关闭的夹紧臂。 夹臂能够通过夹紧臂的一致移动来移动载荷相对于起重车的位置，通过该夹臂可以在相等延伸的位置之间相对于起重车运动载荷，其中， 夹臂延伸到起重车的前方基本上相等的距离，以及不平等延伸的位置，其中一个夹臂的前端比另一夹臂的前端向前延伸更大的距离。 用于实现这种移动功能的流体马达装置仅在夹具的某些预定的旋转位置，即两个夹臂相对于水平面大致成45度的角度布置的位置可选择地启动。 响应于夹具的旋转位置的阀组件允许在该位置选择性地致动换档功能，同时防止夹紧臂的选择性打开或关闭。 相反，当夹臂被放置在另一个或并排放置时，允许选择性地打开或关闭臂，同时防止移动功能的致动。
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公开(公告)号：US4227850A
公开(公告)日：1980-10-14
申请号：US953093
申请日：1978-10-20
IPC分类号： B66F9/18
CPC分类号： B66F9/184 , Y10S414/124
摘要： A paper roll-handling clamp for lift trucks of the pivoted arm type. The pivoting movement of the clamp arms with respect to one another to perform the clamping function is accomplished by use of a generally forwardly extending, selectively extensible and retractible multi-stage telescoping hydraulic piston and cylinder assembly, which gives the clamp arms an exceptionally wide range of motion.
摘要翻译： 一种用于枢转臂式起重机的纸卷处理夹具。 夹紧臂相对于彼此执行夹紧功能的枢转运动通过使用大致向前延伸的，选择性可伸展和可伸缩的多级伸缩液压活塞和气缸组件实现，其使夹臂具有非常宽的范围 的运动。
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3.发明授权
公开(公告)号：US4279564A
公开(公告)日：1981-07-21
申请号：US111778
申请日：1980-01-14
申请人： Harry F. Weinert
发明人： Harry F. Weinert
CPC分类号： B66F9/183
摘要： A parallel arm clamp assembly having longitudinally-movable elongate slide members mountable transversely on the front of a lift truck and attaching members for connecting relatively narrow opposing clamp arms to the ends of the slide members so as to extend perpendicular thereto. Each slide member has an elongate rear portion longitudinally mounted within a slide guide and a longitudinally-extending elongate front portion external of the respective guide protruding forwardly therefrom, the elongate front portions of the respective slide members intersecting a common plane extending vertically and longitudinally with respect to the slide members. The clamp arm attaching members each have a pair of legs formed monolithically and homogeneously into a single member with the legs oriented at substantially a 90.degree. angle with respect to each other. One leg of each such member is connected in end-to-end abutment with a respective end surface of a respective front portion of a slide member so as to also intersect the aforesaid common plane. The second leg of each attaching member protrudes forwardly from the first leg and is adapted for end-to-end abutment with the rear edge of a respective clamp arm.
摘要翻译： 具有纵向可移动的细长滑动构件的平行臂夹具组件，其横向地安装在起重车的前部上，并且用于将相对较窄的相对的夹紧臂连接到滑动构件的端部以便垂直于其延伸的连接构件。 每个滑动构件具有纵向安装在滑动引导件内的细长后部，以及相应引导件向外突出的纵向延伸的细长前部，各个滑动构件的细长前部与垂直和纵向延伸的公共平面相交， 到幻灯片成员。 夹臂附接构件各自具有一体地整体地且均匀地形成为单个构件的腿，腿部相对于彼此大致成90度角。 每个这样的构件的一个腿部与端滑部件的相应的前部的相应端表面端对端地邻接连接，以便也与上述公共平面相交。 每个附接构件的第二腿从第一腿向前突出并且适于与相应的夹紧臂的后边缘端对端邻接。
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公开(公告)号：US4127205A
公开(公告)日：1978-11-28
申请号：US834107
申请日：1977-09-19
IPC分类号： B66F9/18
CPC分类号： B66F9/184 , Y10S414/124
摘要： A paper roll-handling clamp for lift trucks of the pivoted arm type capable of clamping a paper roll and shifting the position of the roll relative to the lift truck between a position of equal extension, wherein the forward ends of the clamp arms extend a substantially equal distance forwardly of the lift truck, and a position of unequal extension wherein the forward end of one clamp arm extends a greater distance forwardly than the forward end of the other clamp arm. The shifting movement of the clamp arms in unison occurs about a first transverse pivot axis, while the pivoting of the clamp arms with respect to one another to perform the clamping function occurs about a second transverse pivot axis located a spaced distance away from the first pivot axis and movable with respect thereto. The employment of the two separate pivot axes for the shifting function and the clamping function respectively enables the center of the paper roll to be placed very close to the longitudinal centerline of the lift truck and axis of rotation of the clamp when the clamp is in the position of equal extension, despite the fact that the first pivot axis about which the shifting movement occurs is offset transversely by a substantial distance from the truck centerline and axis of rotation, and enables the center of the roll to be offset advantageously from the centerline and axis of rotation in the unequal extension position.
摘要翻译： 一种用于枢转臂式起重机的纸卷处理夹具，其能够夹紧纸卷并且在相等延伸的位置之间相对于起重车移动辊的位置，其中夹臂的前端基本上延伸 提升叉车前方相等的距离，以及不平等延伸的位置，其中一个夹臂的前端向前延伸比另一夹臂的前端更大的距离。 夹紧臂的移动运动一致地围绕第一横向枢转轴线发生，同时夹紧臂相对于彼此枢转以执行夹紧功能的第二横向枢转轴线围绕离开第一枢轴的间隔距离 并且可相对于其移动。 使用两个单独的转动轴用于换档功能和夹紧功能分别使得纸卷的中心可以非常接近叉车的纵向中心线和夹具的旋转轴线，当夹具处于 尽管移动运动所围绕的第一枢转轴线相对于卡车中心线和旋转轴线横向偏移了相当大的距离，并且使辊的中心有利地偏离中心线，并且 不等伸展位置的旋转轴。
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公开(公告)号：US4008648A
公开(公告)日：1977-02-22
申请号：US630781
申请日：1975-11-11
摘要： A single-acting, three-stage, four-section telescopic ram for use in conjunction with a triple-lift type mast in a lift truck. The ram features an extremely low overall length when fully contracted, thus affording good operator visibility. The ram also is capable of producing surprisingly "high-lift" despite its low contracted profile. Further, the ram features an internal construction that produces constant lifting and lowering speeds for a load, as well as providing for positive control over the sequence of movements of parts in and on an associated mast.
摘要翻译： 一个单作用，三级四段式伸缩式冲压头，用于与起重机中的三升式桅杆配合使用。 在完全收缩的情况下，压头的整体长度非常低，从而提供良好的操作员视野。 该公司也能够令人惊讶的“高抬升”，尽管承包量低。 此外，压头具有内部结构，其可以为负载产生恒定的提升和降低速度，以及提供对相关桅杆中和之间部件的运动顺序的积极控制。
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公开(公告)号：US5096363A
公开(公告)日：1992-03-17
申请号：US588067
申请日：1990-09-25
IPC分类号： B66F9/14
CPC分类号： B66F9/143
摘要： A lift truck fork positioner for respective inner and outer pairs of load-handling forks includes power actuators for selectively extending and retracting the outer pair of forks and latch assemblies for selectively detachably connecting an inner fork fixedly to a respective adjacent outer fork in spaced relation thereto automatically in response to the extension of the outer forks beyond a predetermined inner range of extension. Each latch assembly, when connecting the inner fork to the outer fork, fixedly prevents any narrowing of the spacing between the interconnected inner and outer forks, as well as fixedly preventing any widening of such spacing.
摘要翻译： 用于相应的内对和两对装载叉的叉车定位器包括用于选择性地延伸和缩回外部一对叉和闩锁组件的动力执行器，用于选择性地可拆卸地将内叉固定地连接到相应的相邻外叉与其间隔开的关系 响应于外叉的延伸超出预定的内部扩展范围而自动。 当将内叉连接到外叉时，每个闩锁组件固定地防止互连的内叉和外叉之间的间隔的任何变窄，并且固定地防止这种间隔的任何加宽。
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公开(公告)号：US4165008A
公开(公告)日：1979-08-21
申请号：US820454
申请日：1977-08-01
申请人： Donald M. Faust , Harry F. Weinert
发明人： Donald M. Faust , Harry F. Weinert
CPC分类号： B66F9/148
摘要： A side shifter mountable on a conventional hook-type lift truck carriage. The shifter includes an upper hook which, through removable wear shoes, accommodates a sliding engagement between the shifter and the upper bar in such a carriage, and a rotary spherical-segment bearing disposed below the hook which accommodates a rolling point contact with the lower bar in such a carriage.
摘要翻译： 一个侧移装置可安装在常规的钩式起重车托架上。 换档器包括上钩，该上钩通过可移动的耐磨鞋在这种托架中容纳在换档器和上杆之间的滑动接合，以及设置在钩下方的旋转球形轴承，其容纳与下杆的滚动点接触 在这样一个运输。
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8.发明授权Lift truck paper roll clamp having improved contact pad restraint and hinge structure 失效提升卡车纸卷夹具具有改进的接触垫约束和铰链结构
公开(公告)号：US4160620A
公开(公告)日：1979-07-10
申请号：US829631
申请日：1977-09-01
CPC分类号： B66F9/184 , Y10S414/124
摘要： A lift truck-mounted load clamp for handling paper rolls having selectively openable and closeable opposing clamp arms with elongate, arcuate, concave contact pads hingedly connected to the forward ends of the respective clamp arms. Each contact pad is provided with exceptionally compact, durable restraints which limit the hinged movement of the respective pad, such restraints each comprising a cable having a swaged-on eye at one end pivotally connected to the contact pad and a swaged-on ferrule at the other end which is slidably contained within a yoke mounted on the clamp arm. A pair of such restraints are provided for each respective contact pad, the restraints being located exterior of each longitudinal edge of the clamp arm rather than interior thereof. A specially formed, heat-treated protective casting is provided on the rear surface of each contact pad which prevents wear and resultant weakening of the hinge joint of each pad, while also preventing wear and weakening of the tips of the pad, and provides an exceptionally durable and strong connection between the respective restraints and the pad.
摘要翻译： 一种用于处理纸卷的电梯卡车装载夹具，其具有可选择地可打开和可关闭的相对的夹持臂，其具有铰接地连接到相应的夹紧臂的前端的细长的，弓形的凹形接触垫。 每个接触垫具有非常紧凑，耐用的约束，其限制了相应垫的铰接运动，这些约束每个包括在一端枢转地连接到接触垫的模头眼的电缆，以及位于 可滑动地容纳在安装在夹紧臂上的轭内的另一端。 为每个相应的接触垫提供一对这样的限制器，约束件位于夹紧臂的每个纵向边缘的外部，而不是其内部。 在每个接触垫的后表面上设置特殊形成的热处理保护铸件，其防止每个垫的铰链接合的磨损和结果变弱，同时还防止垫的尖端的磨损和削弱，并且提供了特别的 耐用和坚固的连接在相应的约束和垫之间。
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