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1. 发明授权

US4767256A Method of operating a boom 失效
标题翻译：操作吊杆的方法
公开(公告)号：US4767256A
公开(公告)日：1988-08-30
申请号：US104529
申请日：1987-09-30
申请人： David J. Knight
发明人： David J. Knight
IPC分类号： B66F9/065 , B66F9/22 , E02F3/86
CPC分类号： B66F9/22 , B66F9/065
摘要： A method of operating a boom which comprises an elongate member mounted on a base for pivotal movement about a first axis transverse to the axis of the elongate member, first fluid operated power means mounted between the base and the elongate member to control raising and lowering of the member about said first axis, an implement mounted at one end of the member for pivotal movement about a second axis transverse to the axis of the elongate member, second fluid operated power means comprising a double acting ram having a cylinder and plunger slidable therein, mounted between the implement and the member to control movement of the implement about the second axis, means to feed fluid under pressure to and from the first fluid operated power means along first feed lines via a first operating valve, means to feed fluid under pressure to and from the second fluid operated power means along second feed lines via a second operating valve, a displacement means comprising a further double acting fluid operated ram connected between the member and the base to sense movement of the member about the first axis, fluid lines from the displacement means to the second fluid operated power means to transmit a signal to the second fluid operated power means to cause the second fluid operated power means to operate to maintain the orientation of the implement relative to the base as the implement is raised and lowered on the member, the method including the steps of providing fluid under pressure to the displacement means during raising of said one end of the elongate member, whereby said displacement means contributes to the raising of said one end of the member so that the design limit of the boom can be raised without having to increase the lifting capacity of the first fluid operated power means, while the orientation of the implement relative to the base can be maintained level during raising and lowering.
摘要翻译：一种操作吊杆的方法，其包括安装在基座上的细长构件，用于围绕横向于细长构件的轴线的第一轴线枢转运动，第一流体操作的动力装置安装在基部和细长构件之间以控制升高和降低所述构件围绕所述第一轴线，安装在所述构件的一端处的工具围绕横向于所述细长构件的轴线的第二轴线枢转运动;第二流体操作的动力装置，包括具有可滑动在其中的气缸和柱塞的双作用柱塞，安装在所述工具和所述构件之间以控制所述工具围绕所述第二轴的运动;用于经由第一操作阀将压力下的流体沿着第一供给管线从所述第一流体操作的动力装置供给流体的装置，并且通过第二操作阀从第二流体操作的动力装置沿着第二供给管线移动，移动装置包括另外的双重动作连接在所述构件和所述基座之间的流体操作的压头以感测所述构件围绕所述第一轴的运动，从所述位移装置到所述第二流体操作的动力装置的流体管线将信号传送到所述第二流体操作的动力装置，流体操作的动力装置用于操作以在工具在构件上升高和降低时相对于基座维持工具的取向，该方法包括以下步骤：在压力下将流体提升到位移装置，细长构件，由此所述位移装置有助于构件的所述一端的升高，使得可以提高悬臂的设计极限，而不必增加第一流体驱动动力装置的提升能力，同时工具的取向相对于底座可以在升高和降低期间保持水平。

2. 发明授权

US3749269A Control system for a vehicle engine 失效
标题翻译：汽车发动机控制系统
公开(公告)号：US3749269A
公开(公告)日：1973-07-31
申请号：US3749269D
申请日：1971-07-23
申请人： CLARK EQUIPMENT CO
发明人： CONRAD M
IPC分类号： E02F9/22 , E02F9/24 , E02F3/86
CPC分类号： E02F9/2253 , E02F9/24
摘要： A vehicle having a tiltable load engaging bucket and elevatable booms connecting the bucket to the vehicle is provided with a control system having a pressure sensitive switch connected to sense the fluid pressure required to raise or tilt the bucket. The switch is adapted to actuate when the fluid pressure exceeds a level indicating that the bucket has encountered and obstruction in its work, and upon the switch''s actuation a governor is activated to reduce the speed of the vehicle''s engine so that the vehicle moves forward more slowly and the lifting bucket has an opportunity to lift past the obstruction.
摘要翻译：具有可倾斜负载接合铲斗和将铲斗连接到车辆的可升降起重臂的车辆设置有控制系统，该控制系统具有连接以感测提升或倾斜铲斗所需的流体压力的压敏开关。该开关适于在流体压力超过表示铲斗已经遇到的水平并且在其工作中阻塞的水平时启动，并且在开关致动时，调速器被启动以降低车辆发动机的速度，使得车辆向前移动更慢并且提升桶有机会通过障碍物。

3. 发明授权

US3722724A Load carrying device with improved position control 失效
标题翻译：具有改进位置控制的装载装置
公开(公告)号：US3722724A
公开(公告)日：1973-03-27
申请号：US3722724D
申请日：1971-04-19
申请人： CASE CO J I
发明人： BLAKELY R
IPC分类号： E02F3/34 , E02F3/86
CPC分类号： E02F3/283
摘要： A material handling device having a bucket pivoted on the free ends of lift arms that extend on opposite sides of a vehicle body and are pivoted on uprights extending from the body adjacent the rear end thereof. The material handling device incorporates pivot means for tilting the bucket and automatically maintaining the bucket in a level condition as the lift arms are raised. The pivot means includes a pair of links that are supported within the hollow lift arms with a fluid motor located between one of the links and the material handling implement that is pivoted on the free end of the lift arms. The links and hollow lift arms are constructed and arranged to allow unrestricted movement of the links within the lift arms while the lift arms are pivoted between raised and lowered positions.

4. 发明授权

US3497014A Automatic blade bite control 失效
标题翻译：自动叶片控制
公开(公告)号：US3497014A
公开(公告)日：1970-02-24
申请号：US3497014D
申请日：1967-05-01
申请人： UNITED AIRCRAFT CORP
发明人： ASK HENRY R
IPC分类号： E02F3/84 , E02F3/76 , E02F3/86
CPC分类号： E02F3/844

5. 发明授权

US3905500A Public works machine having a safety device for the manoeuvre of its working equipment 失效
标题翻译：公共工程机器具有用于其工作设备操纵的安全装置
公开(公告)号：US3905500A
公开(公告)日：1975-09-16
申请号：US44058174
申请日：1974-02-07
申请人： POCLAIN SA
发明人： BOURGES BERNARD M
IPC分类号： E02F3/43 , E02F9/24 , F15B20/00 , E02F3/86
CPC分类号： E02F3/436 , E02F3/433 , F15B20/00
摘要： A loader having a body on which is pivotally mounted a jib system and a bucket and which is operated by fluid motor means is provided with a discharge conduit extending from the bucket raising side of one of the fluid motor means and control valve means to open the conduit to fluid flow whereby movement of the bucket over the loader cab is prevented.
摘要翻译：具有主体的装载机枢转地安装在起重臂系统和铲斗上并且由流体马达装置操作的装置设置有从流体马达装置和控制阀装置之一的铲斗提升侧延伸的排放管道，以打开导致流体流动，从而防止铲斗在装载机驾驶室上的移动。

6. 发明授权

US3872990A Loader bucket position maintaining system 失效
标题翻译：装载机铲斗位置维护系统
公开(公告)号：US3872990A
公开(公告)日：1975-03-25
申请号：US5355070
申请日：1970-07-09
申请人： CLARK EQUIPMENT CO
发明人： YORK DONALD W
IPC分类号： E02F3/43 , F15B11/20 , E02F3/86
CPC分类号： F15B11/20 , E02F3/433
摘要： A loader bucket mounted on boom arms, with a hydraulic cylinder on the boom arms for positioning the bucket thereon; valve means for controlling the hydraulic cylinder; a manually operated lever for setting the valve means for correspondingly positioning the bucket; a feedback linkage interconnecting the bucket and valve means for controlling the valve means, and thereby controlling the hydraulic cylinder, by the position of the bucket, according to the setting by the manually operated lever; and cam means on the boom arms for controlling the valve means according to vertical movements of the boom arms and which together with the feedback linkage maintain the bucket in set position through the vertical movements of the boom arms.
摘要翻译：安装在动臂臂上的装载机铲斗，在悬臂臂上具有用于将铲斗定位在其上的液压缸; 用于控制液压缸的阀装置; 用于设置用于相应地定位所述铲斗的所述阀装置的手动操作杆; 根据所述手动操作杆的设定，将所述铲斗与阀装置相互连接的反馈联动装置，用于控制所述阀装置，从而通过所述铲斗的位置来控制所述液压缸; 并且凸轮装置在悬臂臂上，用于根据悬臂臂的垂直运动来控制阀装置，并且与反作用联接件一起通过悬臂臂的垂直运动将铲斗保持在设定位置。

7. 发明授权

US3782572A Public works machine 失效
标题翻译：公共工作机器
公开(公告)号：US3782572A
公开(公告)日：1974-01-01
申请号：US3782572D
申请日：1972-03-16
申请人： POCLAIN SA
发明人： GAUTIER J
IPC分类号： E02F3/43 , E02F3/86
CPC分类号： E02F3/434
摘要： This invention relates to a method for adjusting the position of the working equipment with which a public works machine is provided, which is constituted by a group of front drive wheels and a group of rear drive wheels, by said working equipment which is articulated to the frame of the machine, whilst a doubleeffect drive member is coupled between the working equipment and the frame and comprises two chambers connected selectively to a source of pressurised fluid and to a discharge tank or isolated from said fluid sources and discharge tank, according to which method the working equipment is disposed in a predetermined position, isolating said two chambers, and the displacement of the machine is controlled, wherein the position of the working equipment subsequent to the predetermined position is a function of the values of the resistant torques of the groups of front and rear wheels. It also relates to a public works machine applying the method as mentioned hereinabove.
摘要翻译：本发明涉及一种用于调节由一组前驱动轮和一组后驱动轮组成的公共作业机械的工作设备的位置的方法，所述工作设备被铰接到而双重效应驱动构件连接在工作设备和框架之间，并且包括两个腔室，其选择性地连接到加压流体源和排出罐，或者与所述流体源和排放罐隔离，根据所述方法将所述工作设备配置在预定位置，隔离所述两个室，并且控制所述机器的位移，其中所述工作设备在所述预定位置之后的位置是所述工作设备的所述阻力转矩的值的函数前轮和后轮组。它还涉及应用如上所述的方法的公共工程机器。

8. 发明授权

US3726428A Control circuit for front end loader 失效
标题翻译：前端装载机的控制电路
公开(公告)号：US3726428A
公开(公告)日：1973-04-10
申请号：US3726428D
申请日：1971-02-04
申请人： INT HARVESTER CO
发明人： LARK W , JENNINGS M , HOWELLS A
IPC分类号： E02F3/43 , E02F3/86 , E02F3/87
CPC分类号： E02F3/434 , E02F3/432
摘要： There is disclosed a control circuit for actuating a hydraulically actuated boom and a hydraulically actuated implement associated with an earth-working mechanism whereby the actuation of the boom and the implement may be initiated solely by the closing of an electrical switch thereby enabling the operator of the earth-working mechanism to retain both hands on the steering wheel except for the short period of time when the switch is actuated. The control circuit comprises a first electrical circuit for automatically raising the boom and the implement, a second electrical circuit for automatically and continuously orienting the implement in a predetermined relationship with the boom, a third electrical circuit for automatically rotating the implement from a first position to a second position and wherein the third electrical circuit includes means for maintaining the implement in the second position for a preselected period of time and then automatically returning the implement to the first position, a fourth electrical circuit for lowering the boom and the implement, a fifth electrical circuit for automatically orienting the implement in a preselected angular relationship with the surface upon which the earthworking mechanism is located, and a sixth electrical circuit adapted to enable the boom and the implement to follow the surface upon which the earth-working mechanism is located. Each of these electrical circuits may be enabled in a preselected sequence by merely closing a switch which is located within easy access to the operator of the earth-working mechanism and in addition, a manual override control is available so that the operator may manually operate the boom and the implement in a conventional manner.
摘要翻译：公开了一种用于致动液压致动吊臂的控制电路以及与接地工作机构相关联的液压致动工具，由此可以仅通过关闭电气开关来启动吊杆和工具的致动，从而使操作者能够除了在开关被致动的短时间内，双手放在方向盘上。所述控制电路包括用于自动升高所述起重臂和所述工具的第一电路，用于以与所述起重臂预定关系自动地和连续地定向所述工具的第二电路，用于将所述工具从第一位置自动旋转到第第二位置，并且其中所述第三电路包括用于将所述工具保持在所述第二位置中以预选的时间段，然后自动地将所述工具返回到所述第一位置的装置，用于降低所述起重臂和所述工具的第四电路，用于自动地将工具定位成与所述接地工作机构所在的表面成预定角度关系的电路;以及第六电路，其适于使所述起重臂和所述工具能够跟随所述接地工作机构所在的表面位于。这些电路中的每一个可以通过仅关闭位于便于接近地球工作机构的操作者的开关来预选的顺序启用，此外，手动超控控制可用，以便操作者可以手动操作繁荣和工具以传统的方式。

9. 发明授权

US3436849A Back hoe apparatus having movable teeth 失效
标题翻译：具有可移动电话的后方装置
公开(公告)号：US3436849A
公开(公告)日：1969-04-08
申请号：US3436849D
申请日：1965-12-20
申请人： FREDDIE J HAYNES
发明人： HAYNES FREDDIE J
IPC分类号： E02F3/40 , E02F3/70 , E02F3/86 , E02F5/14
CPC分类号： E02F3/405 , Y10T29/49378

10. 发明授权

US3924766A Adjustable program control circuit for two hydraulic cylinders with single lever control 失效
标题翻译：具有单杠控制的两个液压缸的可调节程序控制电路
公开(公告)号：US3924766A
公开(公告)日：1975-12-09
申请号：US5272370
申请日：1970-07-06
申请人： INT HARVESTER CO
发明人： CANNING MICHAEL H
IPC分类号： E02F3/43 , F15B21/08 , E02F3/86
CPC分类号： E02F3/434 , F15B21/087
摘要： A control system for a material handling vehicle in which the movement of one actuator controlling an implement is programmed to follow the movement of another actuator in a predetermined sequence. Feedback signals from the implement actuator are compared with similar feedback signals from the other actuator to produce control signals which operate actuation of the implement, and means are provided to selectively vary the magnitude of the second mentioned feedback signals to permit a varied control program.

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