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公开(公告)号：US4589669A
公开(公告)日：1986-05-20
申请号：US664452
申请日：1984-10-24
申请人： Tuval Kedem
发明人： Tuval Kedem
CPC分类号： B62B3/0618 , B62B5/063
摘要： A pallet truck hydraulic jack has a base plate mounting a lift cylinder with a reciprocal piston or lift rod and a pump cylinder with a reciprocal pump piston. A frame mounts a pair of forks having retractable rollers at their ends and is pivotally mounted upon the base plate and operatively engaged by the lift rod for raising the frame and lowering the rollers. A hydraulic reservoir is mounted upon the base plate. A hydraulic control system includes a pivot axle depending from the base plate having a bore coaxial of the lift cylinder. A plunger piston within the axle shaft bore is connected to the lift cylinder piston rod. There are a plurality of manifold passages formed in the base plate, adapted for supplying pressurized hydraulic fluid from the pump to the plunger piston and to the lift rod, which interconnects the reservoir and the pump and interconnects the reservoir and the lift cylinder. A cartridge type directional control valve assembly within the base plate controls the flow of pressurized hydraulic fluid in the respective manifold passages so that manual actuation of the pump effects a quick lift of the frame when it is unloaded, effects an additional application of lifting force through the lift cylinder when the frame is loaded, bypasses pressurized hydraulic fluid to the reservoir when the frame is overloaded, and provides a release of pressurized hydraulic fluid from the pump cylinder and the lift plunger and returns it to the reservoir for lowering the frame and forks. The cartridge type directional control valve may be conveniently removed and replaced in the hydraulic control circuit when required in minimum time.
摘要翻译： 托盘车液压千斤顶具有安装提升缸的底板，其具有往复活塞或提升杆以及具有往复泵活塞的泵缸。 框架在其端部安装一对具有可缩回的辊的叉，并且可枢转地安装在基板上并且由提升杆可操作地接合以提升框架并降低辊子。 液压油箱安装在基板上。 液压控制系统包括从基板悬挂的枢轴轴，其具有提升缸的同轴的孔。 车轴孔内的柱塞活塞连接到提升缸活塞杆。 在基板中形成有多个歧管通道，其适于将加压的液压流体从泵供应到柱塞活塞和提升杆，所述提升杆将储存器和泵互连并使储存器和提升缸相互连接。 底板内的盒式方向控制阀组件控制相应歧管通道中的加压液压流体的流动，使得在卸载时，泵的手动致动可以实现框架的快速升降，从而进一步施加提升力 当框架被装载时，升降缸在框架过载时绕过加压的液压流体到储存器，并且提供从泵缸和提升柱塞释放加压的液压流体并将其返回到储存器中以降低框架和叉 。 在需要最少时间的情况下，可以在液压控制回路中方便地取出盒式换向阀。
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公开(公告)号：US5103617A
公开(公告)日：1992-04-14
申请号：US666365
申请日：1991-03-06
申请人： Christer A. Sjogren , Kevin Cote , Tuval Kedem
发明人： Christer A. Sjogren , Kevin Cote , Tuval Kedem
CPC分类号： B65B11/08 , B65B25/14 , B65B61/025
摘要： Method and apparatus for wrapping a signature bundle by moving a wrapping sheet into the path of movement of a bundle, said sheet being maintained in self-supporting fashion by imparting a bend thereto as it is fed to the wrapping station. The bundle "crashes" into the sheet causing it to collapse and wrap itself about the bundle. When the wrapping operation is completed, the wrapping sheet is wrapped around three contiguous surfaces of the bundle. The sheet is automatically cut and a new wrapping operation is initiated. The wrapping sheet may be printed upon by an ink jet printing characters "on the fly". The characters are printed backwards and "bleed through" the wrapping sheet to appear in normal manner.
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公开(公告)号：US5274983A
公开(公告)日：1994-01-04
申请号：US868029
申请日：1992-04-13
申请人： Christer A. Sjogren , Kevin Cote , Tuval Kedem
发明人： Christer A. Sjogren , Kevin Cote , Tuval Kedem
CPC分类号： B65B11/08 , B65B25/14 , B65B61/025
摘要： Method and apparatus for wrapping a signature bundle by moving a wrapping sheet into the path of movement of a bundle, said sheet being maintained in self-supporting fashion by imparting a bend thereto as it is fed to the wrapping station. The bundle "crashes" into the sheet causing it to collapse and wrap itself about the bundle. When the wrapping operation is completed, the wrapping sheet is wrapped around three contiguous surfaces of the bundle. The sheet is automatically cut and a new wrapping operation is initiated. The wrapping sheet may be printed upon by an ink jet printing characters "on the fly". The characters are printed backwards and "bleed through" the wrapping sheet to appear in normal manner.
摘要翻译： 通过将包装片移动到束的移动路径中来包裹签名束的方法和装置，所述片材在被馈送到包装站时通过赋予弯曲部而保持自支撑的方式。 捆绑包“崩溃”到纸张中，导致纸张折叠并围绕纸张包装。 当包装操作完成时，包装片缠绕在束的三个相邻的表面上。 纸张被自动切割，并开始新的包装操作。 可以通过喷墨打印字符“飞行地”打印包装纸。 字符被向后打印并且“渗出”包装纸以正常方式出现。
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公开(公告)号：US4567911A
公开(公告)日：1986-02-04
申请号：US664801
申请日：1984-10-25
申请人： Tuval Kedem
发明人： Tuval Kedem
CPC分类号： B62B3/0618 , B62B5/063 , Y10T137/7613 , Y10T137/7668 , Y10T137/7743 , Y10T137/7842 , Y10T137/7905
摘要： A cartridge type directional control valve assembly includes an elongated housing having a bore and a plug threaded in the outer end of the housing adjacent the bore. A changeover, spring biased piston forming a load senser or pressure sensor is provided in the bore with a sealing O ring therebetween. A coil spring is interposed between the plug and the changeover piston. The plug has a vent passage for venting the chamber of the coil spring. A valve retaining screw located in the housing, is centrally apertured and loosely receives the shank of the cone or flow control valve. A coil spring is nested within the valve retaining screw and bears against the flow control valve which is normally seated with respect to a central aperture within the cone valve insert seat. A floating ball check valve is nested within the cartridge assembly and is axially aligned with and opposite from the flow control valve. The control valve and ball check valve control flow across their respective valve seats. One end of the load sensor changeover piston is axially aligned and engageable with the flow control valve. The cartridge control valve may be conveniently removed and replaced in a hydraulic control circuit when required.
摘要翻译： 盒型方向控制阀组件包括细长壳体，其具有孔和在所述壳体的与外孔相邻的外端中螺纹连接的塞子。 形成负载传感器或压力传感器的转换弹簧偏压活塞在孔内设置有密封O形环。 插头和切换活塞之间夹有螺旋弹簧。 塞子具有用于排出螺旋弹簧室的通气通道。 位于壳体中的阀保持螺钉居中地开孔并且松散地接收锥体或流量控制阀的柄。 螺旋弹簧嵌套在阀保持螺钉内并且抵靠通常位于锥形阀插入座内的中心孔的流量控制阀。 浮球止回阀嵌套在料筒组件内，并与流量控制阀轴向对准并与其对置。 控制阀和球止回阀控制流经其各自阀座的流量。 负载传感器切换活塞的一端轴向对准并与流量控制阀接合。 当需要时，可以在液压控制回路中方便地拆卸和更换墨盒控制阀。
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公开(公告)号：US4424885A
公开(公告)日：1984-01-10
申请号：US296103
申请日：1981-08-26
申请人： Tuval Kedem
发明人： Tuval Kedem
CPC分类号： B62B3/0606 , B62B5/0442 , B62B2301/00 , B62B5/0485 , B62B5/063
摘要： In a pallet lift truck having a base, an upright axle shaft, a wheel fork and a transverse axle mounting a pair of spaced resilient wheels, and a normally upright steering handle pivoted at one end to the base. A mechanical brake assembly comprises a brake housing with downwardly opening slots positionable over and removably mounted upon the axle between the wheels. An upright brake arm extends into and is pivotally mounted upon the brake housing and includes a brake bar projecting therefrom overlying and spaced from the wheels and normally biased to an inoperative position. A brake actuator boss upon the steering handle on downward pivoting thereof operatively engages the brake arm moving the brake bar into operative compressive frictional engagement with the wheels.
摘要翻译： 在具有基座，直立车轴，轮叉和安装一对间隔开的弹性轮的横向轴的托盘搬运车中，以及在一端枢转到基座的正常直立的转向手柄。 机械制动组件包括制动器壳体，其具有可定位在车轮之间并可移除地安装在车轮之间的轴上的向下开口的槽。 直立的制动臂延伸到制动器壳体中并枢转地安装在制动器壳体上，并且包括从其上凸出并与轮隔开并且通常被偏压到不工作位置的制动杆。 在转向把手上的制动致动器凸台在其向下枢转时可操作地接合制动臂，该制动臂将制动杆移动到与轮的可操作的压缩摩擦接合。
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公开(公告)号：US4577463A
公开(公告)日：1986-03-25
申请号：US664665
申请日：1984-10-25
申请人： Tuval Kedem
发明人： Tuval Kedem
CPC分类号： B62B3/0618 , B62B3/0606 , B62B5/0442 , B62B2301/00 , B62B5/0485 , B62B5/063
摘要： A pallet truck hydraulic jack has a base plate mounting a lift cylinder with a reciprocal piston or lift rod and a pump cylinder with a reciprocal pump piston. A cartridge type directional control valve assembly within the base plate controls the flow of pressurized hydraulic fluid in respective manifold passages so that manual actuation of the pump effects a quick lift of the frame when it is unloaded, effects an additional application of lifting force through the lift cylinder when the frame is loaded, bypasses pressurized hydraulic fluid to the reservoir when the frame is overloaded, and provides a release of pressurized hydraulic fluid from the pump cylinder and the lift plunger and returns it to the reservoir for lowering the frame and forks.
摘要翻译： 托盘车液压千斤顶具有安装提升缸的底板，其具有往复活塞或提升杆以及具有往复泵活塞的泵缸。 底板内的盒式方向控制阀组件控制相应歧管通道中的加压液压流体的流动，使得在卸载时，泵的手动致动可以实现框架的快速升降，从而进一步施加提升力 当框架被装载时，提升缸在框架过载时绕过加压的液压流体到储存器，并且提供从泵缸和提升柱塞释放加压的液压流体并将其返回到用于降低框架和叉的储存器。
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公开(公告)号：US4497501A
公开(公告)日：1985-02-05
申请号：US313411
申请日：1981-10-26
申请人： Tuval Kedem
发明人： Tuval Kedem
CPC分类号： B62B3/0618 , B62B5/063
摘要： A pallet truck hydraulic jack has a base plate mounting a lift cylinder with a reciprocal piston or lift rod and a pump cylinder with a reciprocal pump piston. A frame mounts a pair of forks having retractable rollers at their ends and is pivotally mounted upon the base plate and operatively engaged by the lift rod for raising the frame and lowering the rollers. A hydraulic reservoir is mounted upon the base plate. A hydraulic control system includes a pivot axle depending from the base plate having a bore coaxial of the lift cylinder. A plunger piston within the axle shaft bore is connected to the lift cylinder piston rod. There are a plurality of manifold passages formed in the base plate, adapted for supplying pressurized hydraulic fluid from the pump to the plunger piston and to the lift rod, which interconnects the reservoir and the pump and interconnects the reservoir and the lift cylinder. A cartridge type directional control valve assembly within the base plate controls the flow of pressurized hydraulic fluid in the respective manifold passages so that manual actuation of the pump effects a quick lift of the frame when it is unloaded, effects an additional application of lifting force through the lift cylinder when the frame is loaded, bypasses pressurized hydraulic fluid to the reservoir when the frame is overloaded, and provides a release of pressurized hydraulic fluid from the pump cylinder and the lift plunger and returns it to the reservoir for lowering the frame and forks. The cartridge type directional control valve may be conveniently removed and replaced in the hydraulic control circuit when required in minimum time.
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