-
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。
-
公开(公告)号：US4108349A
公开(公告)日：1978-08-22
申请号：US851719
申请日：1977-11-15
申请人： James L. Pfaffendorf
发明人： James L. Pfaffendorf
CPC分类号： B65D5/4804
摘要： A cellular space divider for cartons and the like is disclosed that is formed from a blank of sheet material such as corrugated cardboard. The blank contains vertical first scorelines that define front, rear, and a pair of side panels. One of the panels contains a horizontal first fold line, and the remaining panels each contain throughout substantially the length thereof a first cut colinear with the first fold line, whereby the panels are divided into lower first and upper second panel sections. When the panels are folded about the first score lines to define a tube and the adjacent ends of the panels are connected together, the lower and upper panel sections define lower and upper cell units, respectively, the upper cell unit being foldable about the first fold line to a position in which the external surfaces of the panel sections joined by the first fold line are in contiguous engagement, thereby to define a multi-cell arrangement. Another panel may be provided with a horizontal second fold line at a higher elevation than the first fold line, the remaining panels being provided with second cuts colinear with the second fold line, thereby to define a third cell unit that is foldable about the second fold line to a position in which the external surfaces of the panel sections on opposite sides of the second fold line are in contiguous engagement. In one embodiment, the rear panel is unitary, and in a second embodiment, the rear panel includes a pair of rear panel sections that are connected at their free ends, a divider panel being provided that is connected with one rear panel section and is foldable to a position extending transversely across the tube.
摘要翻译： 公开了一种用于纸箱等的细胞空间分隔件，其由诸如瓦楞纸板的片材的坯件形成。 空白包含垂直的第一个分数线，定义前，后和一对侧面板。 其中一个面板包含水平的第一折叠线，其余的面板各自在其大致长度上包含具有第一折叠线的第一切割总线，由此将面板分成下部第一和第二面板部分。 当面板围绕第一刻痕线折叠以限定管子并且面板的相邻端部连接在一起时，下部和上部板部分分别限定下部和上部细胞单元，上部细胞单元可围绕第一折叠部折叠 线连接到由第一折叠线连接的面板部分的外表面处于连续接合的位置，从而限定多单元布置。 另一个面板可以设置在比第一折叠线更高的高度处的水平的第二折叠线，其余的面板设置有与第二折叠线共线的第二切口，从而限定可围绕第二折线折叠的第三单元单元 线到第二折线的相对侧上的面板部分的外表面处于连续接合的位置。 在一个实施例中，后面板是一体的，并且在第二实施例中，后面板包括在其自由端连接的一对后面板部分，设置有与一个后面板部分连接并且可折叠的分隔板 到横向穿过管延伸的位置。
-
公开(公告)号：US4041839A
公开(公告)日：1977-08-16
申请号：US634422
申请日：1975-11-24
申请人： John E. Olson
发明人： John E. Olson
IPC分类号： B66C23/687 , B66F9/22 , F15B15/16 , F01B15/02
摘要： A multistage, extensible-contractible hydraulic ram assembly for use in conjunction with a triple-lift-type mast in a lift truck. The assembly is designed for mounting in such a truck in a so-called inverted position. It is constructed with special, externally actuated, internal valving which, through controlling the action of pressure fluid within the assembly, assures positive control over the sequence of movements of the sections in a mast as such are raised and lowered, without requiring latching and interlocking of these sections. Further, the assembly features the capability of producing substantially uniform or constant lifting and lowering speeds for a load which is carried on the usual carriage mounted on a mast of the type indicated.
摘要翻译： 一种多级可伸缩液压油缸组件，用于与起重机中的三升升式桅杆配合使用。 该组件设计用于将这种卡车安装在所谓的倒置位置。 它由特殊的外部驱动的内部阀门构成，其通过控制组件内的压力流体的作用，确保对桅杆中的部分的运动顺序进行积极的控制，因为它们被升高和降低，而不需要闩锁和互锁 的这些部分。 此外，组件具有为安装在所示类型的桅杆上的通常的托架上承载的负载提供基本均匀或恒定的提升和降低速度的能力。
-
公开(公告)号：US4016207A
公开(公告)日：1977-04-05
申请号：US628887
申请日：1975-11-05
IPC分类号： C07C51/00
CPC分类号： C07C51/00
摘要： Di- and tricarboxy celluloses are hydrolyzed with sulfurous acid in an aqueous medium to a mixture of erythronic acid and glyoxylic acid, in the case of dicarboxy cellulose; to a mixture of meso tartaric acid and glyoxylic acid in the case of tricarboxy cellulose; and to a mixture of these three products, in the case of a feedstock comprising a mixture of di- and tricarboxy celluloses.
摘要翻译： 在二羧基纤维素的情况下，二 - 和三羧基纤维素在含水介质中用亚硫酸水解成红细胞酸和乙醛酸的混合物; 在三羧基纤维素的情况下是中间酒石酸和乙醛酸的混合物; 以及这三种产品的混合物，在包含二 - 和三羧酸纤维素的混合物的原料的情况下。
-
公开(公告)号：US4008875A
公开(公告)日：1977-02-22
申请号：US646401
申请日：1976-01-02
申请人： John E. Olson , Richard D. Seaberg
发明人： John E. Olson , Richard D. Seaberg
CPC分类号： B66F9/183 , Y10T137/2554
摘要： A fluid control valve which operates accurately in response to the pressure difference that exists between a pair of ports in the valve. The valve features a spool which is normally biased to one control position wherein it remains with the sensed pressure difference being below one preselected amount. The spool shifts rapidly to another control position on the sensed pressure difference exceeding this amount. In this other control position, the spool remains until the sensed pressure difference drops to another preselected amount which is significantly lower than the first-mentioned preselected amount. On this latter event occurring, the spool returns to its first-mentioned control position.
摘要翻译： 一种流体控制阀，其响应于存在于阀中的一对端口之间的压力差而精确地操作。 该阀具有通常被偏压到一个控制位置的阀芯，其中保持感测到的压力差低于一个预选量。 阀芯在检测到的压力差超过此值时快速移动到另一个控制位置。 在该另一个控制位置，阀芯保持直到感测到的压力差下降到另一个预先选择的量，这显着低于首先提到的预选量。 在发生后一事件时，线轴返回到其首先提到的控制位置。
-
公开(公告)号：US4008849A
公开(公告)日：1977-02-22
申请号：US686641
申请日：1976-05-14
申请人： Donald D. Baber
发明人： Donald D. Baber
CPC分类号： B65D5/54 , B65D5/5445
摘要： Bidirectional tear strip means for containers are disclosed, characterized in that the tear strip means are defined by at least three parallel spaced rows of slits or cuts successive pairs of which are arranged in a herringbone pattern for defining therebetween a tear strip, the successive tear strips defined by the rows of slits being operable in opposite tear directions, respectively. Preferably the slits of each row are linear, of equal length, and are equally spaced from each other. The slits of successive rows have the same acute angle -- but are of the opposite sense -- relative to the longitudinal axis of the tear strip defined therebetween. Preferably the slits of one row are longitudinally offset from the slits of the next row. In the preferred embodiment, the tear strips are so defined in the container blank that upon tearing of the tear strip means of the resulting container in either of two directions, the container may be divided in half for ready access to the container contents. In alternate embodiments, the tear strip means are arranged to provide access or dispensing openings in the containers.
摘要翻译： 公开了用于容器的双向撕条装置，其特征在于，撕带装置由至少三个平行间隔开的狭缝或切口排限定，其连续的对被布置成人字形图案，用于在其间限定撕开条，连续的撕条 由分别在相反撕裂方向操作的狭缝行限定。 优选地，每行的狭缝是线性的，具有相等的长度，并且彼此相等间隔。 连续行的狭缝具有相同的锐角 - 但是相对于其间限定的撕裂条的纵向轴线具有相反的意义。 优选地，一排的狭缝从下一排的狭缝纵向偏移。 在优选实施例中，撕裂条被限定在容器坯料中，在两个方向中的任一方向上撕裂所得容器的撕裂带装置后，容器可以被分成两半以便容易地进入容器内容物。 在替代实施例中，撕带装置被布置成在容器中提供进入或分配开口。
-
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。
-
公开(公告)号：US3984010A
公开(公告)日：1976-10-05
申请号：US613200
申请日：1975-09-15
IPC分类号： B65G57/28
CPC分类号： B65G57/28
摘要： A truss stacking apparatus is disclosed which includes means for lifting successive horizontally disposed trusses off of a conveyor and for stacking the trusses in a generally upright orientation on a stacking skid. Guide means are disposed in the conveyor path for contacting the angularly arranged top chords of successive trusses to effect lateral shifting of the trusses toward lifting positions in which the trusses are lifted from the conveyor onto the skid. SUBACKGROUND OF THE INVENTION1. Field of the InventionThis invention relates generally to handling equipment for wooden structural truss members, and more particularly to apparatus for raising horizontally disposed truss members off of a conveyor and for stacking the trusses in a generally upright position on a stacking skid.2. Description of the Prior ArtPrefabricated wood building components, such as roof and floor trusses, are used extensively in the building industry today, particularly for residential construction. Normally, a roof truss includes an elongate base chord to which a plurality of angularly arranged top chords are attached. In one typical truss formation, the base chord is connected at each end with an angularly arranged top chord.Such trusses are fabricated in varying shapes and sizes and similar trusses are then stored together prior to shipping. Typically, such trusses are fabricated at one station, and then successive ones of such trusses are horizontally disposed on a conveyor which transports them to a stacking station. At the stacking station, these trusses are successively lifted, either manually or automatically, to a generally upright position.As evidenced by the patents to Adams U.S. Pat. No. 3,517,834 and Jureit et al. U.S. Pat. No. 3,811,578, various automatic stop and lift initiating devices have been proposed to properly position the truss on the conveyor for subsequent lifting with respect to the stacking station. In Jureit et al., a bumper plate-lift switch combination is disposed in the truss path on the conveyor downstream of the stacking station. A truss disposed on the conveyor is conveyed downstream with its base chord extending in the direction of movement of the conveyor. The downstream end of the truss abuts the bumper plate and activates the lift switch to effect lifting. If the truss has a tail, the tail end of the downstream and top chord will abut the bumper plate. If the truss has no tail, the truss portion where the downstream end top chord and base chord join will abut the bumper plate. If it is desired to stack smilarly sized ones of both types of trusses on the same skid, either the bumper plate or the stacking skid for receiving stacked trusses must be separately positioned for each type of truss stacked, or else the stacked trusses will be misaligned.SUMMARY OF THE INVENTIONThe present invention was developed to provide an improved stacking apparatus which includes means for positioning similarly sized trusses, both with and without tails, in a lifting position for stacking on a skid member. The stacking apparatus is so designed that the positioning means need not require separate adjustment when stacking similarly sized trusses with tails and without tails.Accordingly, a primary object of the present inventions is to provide a stacking apparatus for stacking trusses of the type having a base chord and at least one top chord angularly arranged at an acute angle relative to the base chord, including a stacking station having a skid upon which said trusses are successively stacked in a generally vertical orientation upon their base chords, conveyor means for horizontally transporting successive trusses toward the stacking station, said trusses oriented on the conveyor with their base chords generally adjacent one side of the conveyor. Pivotable stacking arms are provided at the stacking station for raising successive trusses from the conveyor to a position above the stacking skid. The stacking arms are mounted for pivotal movement about an axis disposed on one side of the conveyor and generally parallel with the axis of the conveyor, said stacking arms being pivotable between a lowered position beneath the conveyor and an elevated position adjacent the stacking skid. Positioning means are provided for positioning successive trusses on the conveyor relative to the stacking arms prior to engagement thereby. The positioning means include a first stationary guide arranged in the path of travel of a truss approaching the stacking station to engage the top chord thereof and to laterally displace the truss relative to the conveyor in the direction of the pivot axis of the stacking arms. The positioning means further includes a second stationary guide arranged adjacent the stacking arms for engaging the base chord of the laterally displaced truss, which second guide cooperates with the first guide to orient the truss in a stacking position in which the truss base chord is parallel with and adjacent the stacking arm pivot axis. Consequently, when the truss is in its stacking position, the stacking arms may be operable to raise the horizontal truss from the conveyor to a generally vertical position relative to the stacking skid.
-
公开(公告)号：US12024412B2
公开(公告)日：2024-07-02
申请号：US17137025
申请日：2020-12-29
申请人： Cascade Corporation
IPC分类号： B66F9/18
CPC分类号： B66F9/183
摘要： A load-bearing assembly including a clamping-force sensor in a pivoting support assembly that is adjustable to vary a radial spacing between a pivot pin and a clamp pad mounted on the support assembly. A plurality of clamping-force sensors may be included in a plurality of pivoting clamp pad support assemblies to support a clamp pad and may be arranged to sense the magnitude of a clamping force exerted by a particular adjustable pivoting clamp pad support assembly and send signals indicative of the magnitude of the force to a controller. A load sensor may be located between a pivot pin and a bearing block, or strain gauges may be mounted in the pivoting bearing block so as to measure forces carried through the bearing block. Force values sensed and transmitted to the controller may be used to evaluate and adjust the clamp arm assembly to grasp a load with a desired clamping force or distribution of clamping forces.
-
公开(公告)号：US11300441B2
公开(公告)日：2022-04-12
申请号：US17125495
申请日：2020-12-17
申请人： Cascade Corporation
发明人： David W. Petronek
摘要： Hydraulic valve circuitry adapted for hydraulic connection to a lift truck having a mast and at least one lift cylinder for alternately raising and lowering the mast. The hydraulic assembly is also adapted for hydraulic connection to an attachment to the lift truck, the attachment having opposed clamps actuated by respective clamp cylinders. The hydraulic assembly preferably comprises a valve circuit capable of causing the at least one lift cylinder to be an accumulator.
-
-
-
-
-
-
-
-
-
搜索结果
246 条记录 (耗时 0.02 秒)
