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公开(公告)号：US20120235394A1
公开(公告)日：2012-09-20
申请号：US13503477
申请日：2009-11-05
IPC分类号： B60S9/18
CPC分类号： B62B3/001 , B62B2301/02
摘要： This invention is designed to provide a device for sideways movement which will permit an element to move laterally, such as a set of portable x-ray equipment which is affixed to said device.
摘要翻译： 本发明被设计成提供用于横向移动的装置，其将允许元件横向移动，诸如固定到所述装置的一组便携式x射线设备。
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公开(公告)号：US5823558A
公开(公告)日：1998-10-20
申请号：US792489
申请日：1997-01-31
申请人： William A. Shoquist
发明人： William A. Shoquist
摘要： A load frame which mounts on a trailer between the trailer hitch connection and the trailer frame front cross member. The load frame is a wishbone-shaped structural unit which mounts to the trailer frame front cross member with a pivoting saddle on the two rear legs of the wishbone. The load frame includes a spindle mount connected to a wheel assembly and a retracting arm for engaging a retracting apparatus to adjust the relationship between the wheel assembly and the trailer frame. The spindle mount includes a suspension mechanism and a pivoting connection for the wheel assembly. The wheel assembly includes a spindle member which is slidably and rotatably attached to the spindle mount. A tire is rotatably attached to the wheel assembly. The tire extends downwardly from the spindle mount to roll along the ground and support a portion of the tongue weight of the trailer.
摘要翻译： 一个装载框架，安装在拖车挂车连接和拖车架前横梁之间的拖车上。 负载框架是一种叉形结构单元，其安装在拖车框架前横梁上，在叉骨的两个后腿上具有枢转鞍座。 负载框架包括连接到车轮组件的主轴安装件和用于接合回缩装置以调整车轮组件和拖车框架之间的关系的回缩臂。 主轴架包括悬挂机构和用于车轮组件的枢转连接。 车轮组件包括可滑动地且可旋转地附接到主轴座的心轴构件。 轮胎可旋转地附接到车轮组件。 轮胎从主轴架向下延伸，沿着地面滚动并支撑拖车的舌部的一部分。
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公开(公告)号：US5435523A
公开(公告)日：1995-07-25
申请号：US328380
申请日：1994-10-25
摘要： An improved trailer tongue jack including an outer tube and an inner tube which is slidable within the outer tube. The lower end of the inner tube carries a terrain engaging member, such as a caster wheel or sand shoe. A nut is mounted within the inner tube and is threaded on a screw and the upper end of the screw carries a bevel gear which meshes with a second bevel gear mounted on a handle. The bevel gears are supported within a polymeric cup mounted in the upper end of the outer tube and the cup also serves to rotatably support the handle as well as the upper end of the screw and further functions, along with a thrust washer, as a thrust bearing for the screw. The jack also includes an improved locking mechanism for locking the jack in either a vertical or horizontal position. A U-shaped swivel bracket is secured to the outer surface of the outer tube and the lower end portion of a locking member is mounted for movement within aligned openings in flanges of the swivel bracket. The upper end of the locking member is engageable with a hole in a mounting bracket secured to the trailer tongue to lock the jack in position relative to the tongue. A torsion spring associated with the lower end portion of the locking member serves to bias the locking member to the locking position.
摘要翻译： 一种改进的拖车舌头千斤顶，包括外管和可在外管内滑动的内管。 内管的下端具有地形接合构件，例如脚轮或砂鞋。 螺母安装在内管内并螺纹连接在螺钉上，螺钉的上端带有锥齿轮，该锥齿轮与安装在手柄上的第二锥齿轮啮合。 伞形齿轮支撑在安装在外管上端的聚合物杯内，并且杯还用于可旋转地支撑手柄以及螺钉的上端，并且与止推垫圈一起作为推力进一步起作用 轴承用于螺丝。 插座还包括用于将插座锁定在垂直或水平位置的改进的锁定机构。 U形旋转支架固定在外管的外表面上，并且锁定构件的下端部安装成用于在旋转支架的凸缘中的对齐开口内移动。 锁定构件的上端可与固定在拖车舌上的安装支架中的孔接合，以将插孔相对于舌头锁定就位。 与锁定构件的下端部相关联的扭转弹簧用于将锁定构件偏压到锁定位置。
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公开(公告)号：US5282605A
公开(公告)日：1994-02-01
申请号：US4290
申请日：1993-01-14
申请人： Charles J. Sauber
发明人： Charles J. Sauber
摘要： A trailer jack mounting assembly which is rotatable has an outer support member which has a cylindrical bore and is mounted to a trailer frame adjacent to its hitch end with the outer support member receiving a horizontally disposed rectangular cross-section sleeve member rotatably fitted and restrained within the outer support member. A slidable latch member in the form of a U-shaped plate having a handle portion at its top fits within a track in the outer support member and is movable between open and closed positions whereby the rotation of the inner support carrying the jack can be placed in either an upright position or a horizontal position.
摘要翻译： 可旋转的拖车千斤顶安装组件具有外部支撑构件，该外部支撑构件具有圆柱形孔并且被安装到与其搭接端相邻的拖车框架，其中外部支撑构件容纳水平布置的矩形横截面套筒构件，其可旋转地装配并限制在内部 外部支撑构件。 在其顶部具有把手部分的U形板形式的可滑动的闩锁构件装配在外部支撑构件中的轨道内，并且可在打开和关闭位置之间移动，由此承载千斤顶的内部支撑件的旋转可以被放置 在直立位置或水平位置。
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公开(公告)号：US4702458A
公开(公告)日：1987-10-27
申请号：US869283
申请日：1986-06-02
申请人： Billy J. Kendrick
发明人： Billy J. Kendrick
CPC分类号： B60S9/18 , B60D1/66 , B66F3/18 , Y10T74/19614
摘要： A jacking apparatus having a quick release mechanism for disengaging the main shaft of the jack from the jacking gear to allow the main shaft to be selectively raised and lowered as desired without operating the jacking gear. The main shaft has a plurality of teeth disposed thereon in facing relationship with the jacking gear, which is preferably a worm gear mechanism. A stop bar is disposed between the shaft and the jack housing to hold the shaft in alignment with the worm gear mechanism when it is desired to operate the jacking gear. A spring-biased pin member extends through a diagonal slot disposed in the jack housing to engage the stop bar. When it is desired to disengage the shaft teeth from the jacking gear teeth, the user exerts upward pressure on the pin member to move the pin member and stop bar diagonally upward along the axis of the slot, thereby retracting the stop bar from the shaft and allowing the shaft to be rotated to disengage the shaft teeth from the jacking gear teeth. The shaft can then be rapidly moved up and down as desired by the user when there is no load on the jack. To re-engage the shaft teeth with the jacking gear teeth, the user merely rotates the shaft back in the opposite direction, whereupon the spring bias will return the pin member and stop bar to their original position to lock the shaft in place.
摘要翻译： 一种具有快速释放机构的起升装置，用于将千斤顶的主轴与起动齿轮分离，以允许主轴根据需要选择性地升高和降低，而不用操作起落架齿轮。 主轴具有与顶起齿轮成对置的多个齿，其优选地是蜗轮机构。 当需要操作起落架齿轮时，止动杆设置在轴和千斤顶壳体之间以将轴保持与蜗轮机构对准。 弹簧偏置的销构件延伸穿过设置在插座壳体中的对角槽，以接合止动杆。 当希望使轴齿与顶起齿轮齿脱离时，使用者在销构件上施加向上的压力，以使销构件沿着槽的轴线向对角地移动，从而使止动杆从轴上缩回， 允许轴旋转以使轴齿与顶起齿轮齿脱离。 然后，当插孔没有负载时，轴可以根据用户的需要快速上下移动。 为了使轴齿与顶起齿轮齿重新接合，使用者仅将轴向相反的方向旋转，于是弹簧偏压将使销构件和止动杆返回到其初始位置以将轴锁定在适当位置。
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公开(公告)号：US4235454A
公开(公告)日：1980-11-25
申请号：US957530
申请日：1978-11-03
申请人： Floyd L. Gray , Jerome H. Adam , Larry Susami , Rick A. Zamzow
发明人： Floyd L. Gray , Jerome H. Adam , Larry Susami , Rick A. Zamzow
CPC分类号： A61B50/10
摘要： A mobile medical diagnostic device having a mobility chassis with two supporting wheels and a central steerable drive wheel. The device has an electrical power steering system controlled by two synchronized handles operable by wrist action of an operator walking behind the device. The handles include a rotatable grip for controlling the velocity of the device. Advancing the grip actuates the throttle to the drive wheel and retarding the grip actuates a proportional electromechanical braking system. The device includes a proximity detector system which uses ultrasonic transducers to determine when an obstacle is within close proximity to the device, and to responsively and automatically actuate the brake system. The device has a stabilization system which automatically extends an outboard support on each side of the central wheel when the device is positioned for diagnostic analysis and automatically retracts the supports to facilitate mobility of the device.
摘要翻译： 一种移动医疗诊断装置，其具有具有两个支撑轮的移动性底盘和中央可转向驱动轮。 该装置具有由两个同步手柄控制的电动助力转向系统，该手柄可操作在操纵在装置后方的操作者的手腕动作。 手柄包括用于控制装置的速度的可旋转手柄。 推动把手将节气门驱动到驱动轮并延迟把手致动比例机电制动系统。 该装置包括接近检测器系统，其使用超声波换能器来确定障碍物何时位于非常靠近装置的位置，以及响应地和自动地致动制动系统。 该装置具有一个稳定系统，当该装置被定位用于诊断分析并且自动地缩回支撑件以促进该装置的移动时，该自动延伸在中央轮的每侧的外侧支撑件。
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公开(公告)号：US4187733A
公开(公告)日：1980-02-12
申请号：US910832
申请日：1978-05-30
CPC分类号： B60S9/18 , B60D1/66 , Y10T74/19307
摘要： A semi-trailer landing gear speed reduction mechanism is provided which includes two horizontally disposed parallel spaced shafts with one shaft being rotated by a manual crank means and the other shaft connected to a mechanism for raising and lowering the landing gear. A two speed ratio for the mechanism is provided by having a fixed pair of gears secured to the driven shaft, a pinion gear fixed to the driving shaft and a gear having both internal and external threads supported on its internal threads on the driving shaft and in engagement with a pinion gear on the driven shaft. The drive shaft is axially shiftable between a first position in which the last said gear is free to rotate about the driving shaft and the pinion gear secured to the driving shaft is in driving engagement with a gear on the driven shaft, and a position in which the pinion gear on the driving shaft is in engagement with the internal threads on the floating gear which in turn drivingly engages with its external threads the pinion gear secured to the driven shaft.
摘要翻译： 提供了一种半挂车起落架减速机构，其包括两个水平设置的平行隔开的轴，一个轴由手动曲柄装置旋转，另一个轴连接到用于升起和降低起落架的机构。 机构的两速比通过固定在从动轴上的固定的一对齿轮，固定在驱动轴上的小齿轮和具有支撑在驱动轴的内螺纹上的内螺纹和外螺纹的齿轮来提供， 与从动轴上的小齿轮接合。 驱动轴可以在第一位置和第二位置之间轴向移动，在第一位置，最后一个所述齿轮围绕驱动轴自由旋转，并且固定到驱动轴的小齿轮与从动轴上的齿轮驱动接合， 驱动轴上的小齿轮与浮动齿轮上的内螺纹啮合，该浮动齿轮又与固定在从动轴上的小齿轮的外螺纹啮合。
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公开(公告)号：US3880403A
公开(公告)日：1975-04-29
申请号：US44201174
申请日：1974-02-13
申请人： PULLMAN INC
发明人： GLASSMEYER JOHN J
摘要： In a trailer prop, a combination of a jackscrew and a nut for raising and lowering of the prop including an immovable vertically extending helical type jackscrew having a double start screw structure with a pair of screw elements, each screw element having a lower downward facing prop lifting face being directed inwardly generally perpendicular to and toward the vertical axis of the screw to provide for efficient lifting work by the jackscrew by engagement with a complementary upward facing first nut thread face, each screw element having an upper upward facing prop retracting face at far less than ninety degrees with the vertical axis of the screw to eliminate the tendency to overhaul or vibrate down when engaging with a complementary downward facing second nut thread face, the distance between the lower and upper faces of the screw being less than the distance between the first and second nut thread faces to provide a clearance space between the non-engaging faces of the nut and screw.
摘要翻译： 在拖车支架中，用于提升和降低支柱的起重螺丝和螺母的组合包括具有一对螺丝元件的双重启动螺旋结构的不可移动的垂直延伸的螺旋型起重螺丝，每个螺钉元件具有下向下的支撑 提升面向内大致垂直于和垂直于螺杆的垂直轴线定向，以通过与互补的面向上的第一螺母螺纹面的接合来提供通过顶起螺丝的有效的提升作用，每个螺钉元件具有向上的向上的向上的后退面 与螺钉的垂直轴小于90度，以消除在与互补的向下的第二螺母螺纹面接合时的大修或振动的倾向，螺杆的下表面和上表面之间的距离小于 第一和第二螺母螺纹面以在螺母的非接合面和螺纹之间提供间隙空间 w。
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公开(公告)号：US3679233A
公开(公告)日：1972-07-25
申请号：US3679233D
申请日：1971-03-10
申请人： BAKER CALVIN L , CLARENCE H ROGERS
CPC分类号： B60S9/18 , B60D1/46 , B60D1/66 , B62D53/0864 , B62D63/064
摘要： A vertically adjustable trailer hitch of the type mounted upon a trailer tongue and attachable to a towing vehicle, particularly including a ball socket arm and a parallelogram linkage interconnecting the ball socket arm and a pivotable front wheel. The parallelogram linkage enables a level ride of the trailer tongue upon the pivotable front wheel, regardless of the vertical position of the towing vehicle or hitch itself, also the hitch may be vertically extended for manual handling of the trailer apart from the towing vehicle.
摘要翻译： 一种安装在拖车舌上并可连接到牵引车辆上的垂直可调节的挂车挂钩，特别地包括一个球窝臂和将球窝臂和可枢转的前轮互连的平行四边形连杆。 平行四边形联动装置能够使拖车舌头在可枢转的前轮上平稳地骑行，而不管牵引车辆或车钩本身的垂直位置如何，拖车也可垂直延伸以便拖车远离牵引车辆进行手动操作。
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公开(公告)号：US3596877A
公开(公告)日：1971-08-03
申请号：US3596877D
申请日：1969-12-17
申请人： HOLLAND HITCH CO
发明人： EASTMAN BUDD
摘要： A special screw and nut assembly for operation under compression, especially as a hoist in a haulage vehicle landing gear, having substantially increased load supporting capacity and substantially greater ease of operation for elevating heavy loads, as a result of a combination of structural relationships. The threaded nut inner surface acts as a bearing bushing for the screw shaft by reason of minimal clearance between the screw core diameter and the nut root diameter, or less preferably between the nut thread full diameter and the screw outside diameter. The helix angle of both members is within a specific controlled range. The thread angle of both members is within a specific controlled range. The thread to shaft diameter is relatively large. The details of these and related features are set forth hereinafter.
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