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公开(公告)号：US4041875A
公开(公告)日：1977-08-16
申请号：US604682
申请日：1975-08-14
申请人： Bernard E. Wallace
发明人： Bernard E. Wallace
CPC分类号： B66C19/02
摘要： A load-handling gantry having a single, unitary, bridging beam, and leg, brace and mounting components supporting the beam with provision for adjustment of gantry span, height, and spread, while maintaining gantry mobility. The mounting components are adjustable to enable use of the gantry in a number of configurations including inboard, outboard, and combination leg bracing, and with freedom for use under cantilever conditions. In the preferred embodiment, a predetermined camber, or longitudinal splay angle, of the plane of each pair of legs is provided, to decrease movement between the gantry legs and the beam, in the direction lengthwise of the beam, when the gantry is under load, thereby stabilizing the gantry in that sense. The selected splay angle is maintained by apparatus which couples the leg bracing struts to the beam and to the legs. Any selected angle, under the various arrangements of leg bracing, may be had, and may be maintained, by such coupling apparatus, which provides alteration of the effective bracing strut length, without the necessity of actually substituting struts of different lengths. Lateral clearance between the beam, and the legs and bracing struts, is maintained in the various configurations, at a value such as to permit free movement of the leg and strut assemblies along the length of the beam, and also a measure of lateral flexibility of the gantry. All adjustments relative to the beam may be made through external frictional gripping apparatus, cooperable with a standard imperforate beam.
摘要翻译： 装载搬运龙门架具有单一的，单一的桥梁，以及支撑梁的支腿和支架以及安装部件，同时保持机架跨度，高度和扩展，同时保持机架的移动性。 安装部件是可调节的，以便能够在多种配置中使用台架，包括内侧，外侧和组合式支脚，并可在悬臂状态下自由使用。 在优选实施例中，提供每对腿的平面的预定弯度或纵向喷射角度，以在机架处于负载下时沿着梁的纵向方向减小机架腿和梁之间的移动 从而在这个意义上稳定龙门架。 所选择的喷射角度由将腿部支撑支柱连接到梁和腿部的装置来维持。 任何选定的角度，在腿部支撑的各种布置下，可以通过这样的连接装置来实现，并且可以保持这种连接装置，其提供有效支撑支柱长度的改变，而不需要实际替代不同长度的支柱。 梁和支腿和支撑支柱之间的横向间隙保持在各种构造中，其值为允许腿和支柱组件沿着梁的长度自由移动，并且还具有横向柔性的度量 龙门架 可以通过与标准无孔梁配合的外部摩擦夹持装置进行相对于梁的所有调节。
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公开(公告)号：US4227464A
公开(公告)日：1980-10-14
申请号：US944733
申请日：1978-09-22
申请人： Bernard E. Wallace
发明人： Bernard E. Wallace
CPC分类号： B66C19/02 , Y10T403/3981
摘要： Leg structure for portable, height-adjustable gantries is disclosed having an upper, single vertical tubular post member telescopingly received within an open-ended sleeve formed by coupled aligned channel members of lower, break-apart sectional supporting framework. The channel members are supported and elevated by diagonal bracing members and struts giving a generally inverted-Y shaped configuration to the leg so that it can straddle objects and permitting the free, unobstructed downward passage of the post through the lower opening of the sleeve. A locking bolt passes through aligned holes in the post and channels to selectively hold their relative positions, with hand-operated winch means aiding the movement of the post. Post extension members are disclosed which can be added to the leg post while the gantry is assembled. The plate connection between the top of the post and a load-supporting I-beam is externally and internally braced by triangles and post weldment or casting insert elements, respectively. Alternative embodiments show plate and tubular spacer channel coupling arrangements, and solid post-to-frame and non-breakdown frame leg configurations.
摘要翻译： 公开了用于便携式高度可调门架的腿部结构，其具有上部单个垂直管状柱部件，该上部单个垂直管状柱部件可伸缩地容纳在由下部断开部分支撑框架的联接对准的通道构件形成的开放式套筒内。 通道构件由对角支撑构件和支柱支撑并升高，从而向腿部提供大体上倒置的Y形构造，使得其可以跨越物体并且允许柱的自由，无障碍地向下通过套筒的下开口。 锁定螺栓穿过柱子和通道中的对准的孔，以选择性地保持其相对位置，手动绞盘意味着辅助柱的移动。 公开了后部延伸构件，其可以在龙门架组装时添加到腿柱。 柱的顶部和负载工作梁之间的板连接分别由三角形和后焊件或铸件插入元件外部和内部支撑。 替代实施例示出了板和管状间隔件通道联接装置，以及实心的后框架和非击穿框架腿构造。
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公开(公告)号：US4334480A
公开(公告)日：1982-06-15
申请号：US179671
申请日：1980-08-19
CPC分类号： B66C19/02
摘要： Leg structure for portable, height-adjustable gantries is disclosed having an upper, single vertical tubular post member telescopingly received within an open-ended sleeve formed by coupled aligned channel members of lower, break-apart sectional supporting framework. The channel members are supported and elevated by diagonal bracing members and struts giving a generally inverted-Y shaped configuration to the leg so that it can straddle objects and permitting the free, unobstructed downward passage of the post through the lower opening of the sleeve. A locking bolt passes through aligned holes in the post and channels to selectively hold their relative positions, with hand-operated winch means aiding the movement of the post. Post extension members are disclosed which can be added to the leg post while the gantry is assembled. The plate connection between the top of the post and a load-supporting I-beam is externally and internally braced by triangles and post weldment or casting insert elements, respectively. Alternative embodiments show plate and tubular spacer channel coupling arrangements, and solid post-to-frame and non-breakdown frame leg configurations.
摘要翻译： 公开了用于便携式高度可调门架的腿部结构，其具有上部单个垂直管状柱部件，该上部单个垂直管状柱部件可伸缩地容纳在由下部断开部分支撑框架的联接对准的通道构件形成的开放式套筒内。 通道构件由对角支撑构件和支柱支撑并升高，从而向腿部提供大体上倒置的Y形构造，使得其可以跨越物体并且允许柱的自由，无障碍地向下通过套筒的下开口。 锁定螺栓穿过柱子和通道中的对准的孔，以选择性地保持其相对位置，手动绞盘意味着辅助柱的移动。 公开了后部延伸构件，其可以在龙门架组装时添加到腿柱。 柱的顶部和负载工作梁之间的板连接分别由三角形和后焊件或铸件插入元件外部和内部支撑。 替代实施例示出了板和管状间隔件通道联接装置，以及实心的后框架和非击穿框架腿构造。
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公开(公告)号：US4057218A
公开(公告)日：1977-11-08
申请号：US604963
申请日：1975-08-15
申请人： Bernard E. Wallace
发明人： Bernard E. Wallace
CPC分类号： B66D3/14 , B66D1/06 , Y10T74/20612
摘要： A handle apparatus, for use in driving the pawl-actuating lever of a winch-hoist, comprising a pair of telescopically-arranged tubes, means for frictionally securing said tubes in selected positions of telescopic adjustment, and an over-load relieving member for linking said handle apparatus with the lever, and comprising: a rod having one end portion mounted within one of said tube members and an opposite end portion adapted to lie within said lever, when the handle is in use, said latter portion being of reduced cross section in two annular zones spaced along its length, at least a portion of one of said zones lying outside and adjacent said lever when the handle is in use, and the material of which said rod is made, and the cross sectional area of said portion of the last-mentioned annular zone, being so chosen that said portion serves as a protecting link bendable in response to application to said handle of force in excess of a predetermined limit; and further wherein the handle has means for housing a spare link.
摘要翻译： 一种用于驱动绞盘式起重机的棘爪致动杆的手柄装置，包括一对可伸缩的管，用于将所述管摩擦固定在伸缩调节的选定位置的装置和用于连接的过载减轻构件 所述手柄装置具有杆，并且包括：杆，其具有安装在所述管构件中的一个内的一个端部和适于位于所述杆内的相对端部，当所述手柄在使用时，所述后部具有减小的横截面 在沿着其长度间隔开的两个环形区域中，当使用手柄时，所述区域中的一个区域的至少一部分位于所述杆的外侧并且邻近所述杆，并且所述杆的材料被制成，并且所述部分的横截面积 最后提到的环形区域被选择为使得所述部分用作响应于施加到超过预定极限的所述手柄的可弯曲的保护连接件; 并且其中所述手柄具有用于容纳备用连接件的装置。
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公开(公告)号：US4084794A
公开(公告)日：1978-04-18
申请号：US703830
申请日：1976-07-09
申请人： Bernard E. Wallace
发明人： Bernard E. Wallace
摘要： Portable hoist or winch apparatus comprises such mechanism having a frame carrying a drum for a cable or other flexible member, and load-carrying means which includes first and second pulley block assemblies. A hook-bearing first assembly, in normal use, depends from a loop of cable extending from the drum back into securement with the winch frame; a second assembly is disposed in the cable rigging intermediate the drum and the first assembly. The first pulley block assembly has at least two pulleys; the second pulley block assembly has at least one pulley. The cable extends serially from the drum to a pulley of the first assembly, thence to the pulley of the second, back to the second pulley of the first assembly, and thence to the frame. Movement of the second assembly between a position in which it is coupled to the first assembly, and a position in which it is coupled to the winch frame, converts the rigging so that the ideal mechanical advantage of the apparatus is varied from a predetermined value to a value which is a multiple thereof.
摘要翻译： 便携式起重机或绞车设备包括这种机构，其具有承载用于电缆或其它柔性构件的滚筒的框架，以及包括第一和第二滑轮组件的承载装置。 在正常使用中，挂钩第一组件取决于从滚筒延伸回到与绞车架固定的电缆环; 第二组件设置在滚筒和第一组件中间的电缆索具中。 第一滑轮组件具有至少两个滑轮; 第二滑轮组件具有至少一个滑轮。 电缆从滚筒延伸到第一组件的皮带轮，然后从第二组件的皮带轮延伸到第一组件的第二滑轮，然后从框架延伸。 第二组件在其联接到第一组件的位置与其联接到绞盘框架的位置之间的运动转换装置，使得装置的理想机械优点从预定值变化到 值为其倍数。
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公开(公告)号：US4003551A
公开(公告)日：1977-01-18
申请号：US629262
申请日：1975-11-06
申请人： Bernard E. Wallace
发明人： Bernard E. Wallace
CPC分类号： B66D1/06 , B66D3/14 , Y10T24/396
摘要： A portable winch-hoist comprises a main supporting frame, with an anchor hook, and carrying a ratchet-driven cable drum and an actuating frame, or lever, which may in practice be generally U-shaped and may span the main frame and which is pivoted for swinging movements about the axis of the cable drum. Pawls carried by the main frame and by the lever are selectively cooperable with the drum ratchet to rotate, to hold, and to release, the drum, so as to reel, and to control the unreeling of, cable carried by the drum, in response to pivotal swinging of the lever.The cable is releasably retained on the drum, being wrapped thereon and passing through portions of the drum at two axially-spaced points, whereby sufficient turns of cable are retained on the drum to assure a capstan or snubbing effect, under all normal operating conditions, with an end portion of the cable arranged for set-screw securement to the drum, whereby cable replacement is simplified. The lever includes provision for attachment thereto of an operating handle, in any one of several positions, for facility and ease of operation, and to assure ample leverage under all conditions; and the handle has a safety link, bendable when the force applied to the handle exceeds a predetermined amount, and the handle also has within it a space adapted to house spare links. When the hoist is used with the cable looped or passing around a pulley of a pulley-block to form two lines, the cable end remote from the drum is releasably secured, by the cable-end-hook, to the main frame in a position which makes it possible to use a lighter construction for the main frame, for a given load capacity, and substantially reduces the minimum distance achievable between the anchor hook and the pulley-block-hook.
摘要翻译： 一种便携式绞车提升机包括一个主支撑架，一个锚钩，并带有一个棘轮驱动的电缆卷筒和一个致动框架或杠杆，实际上它们可以是大致U形的并且可以跨越主框架， 枢转以围绕电缆滚筒的轴线摆动。 由主框架和杠杆承载的爪子可选择性地与滚筒棘轮配合以旋转，保持和释放滚筒，以便卷起，并且响应地控制滚筒承载的电缆的松驰 到杠杆的枢转摆动。
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