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1. 发明授权

US4431109A Boom extension stowage system 失效
标题翻译： Boom延伸装载系统
公开(公告)号：US4431109A
公开(公告)日：1984-02-14
申请号：US238290
申请日：1981-02-25
申请人： Joseph W. Behrendt , John D. Evans , James W. Cox, Jr.
发明人： Joseph W. Behrendt , John D. Evans , James W. Cox, Jr.
IPC分类号： B66C23/70 , B66C23/62
CPC分类号： B66C23/702
摘要： A multi-section crane boom is provided with a fly section and a jib section which may be erected and supported by a mast and pendants on the end of the boom to extend the effective length of the boom. When the fly section and jib section are not used they are stored on the boom, the fly section being supported alongside of and generally parallel to the boom and the jib section being supported in position below the fly section. The fly section can be mounted on the end of the boom alone while the jib section remains in stored position, or, alternatively, the fly section can be mounted on the boom and the jib section can be mounted on the outer end of the fly section. A pair of compact hook shaped resilient connectors serve as backstops which prevent the fly from pivoting in excess of 5.degree. upwardly past longitudinal of alignment with the boom axis when the boom is in a near vertical position. The resilient connectors also permit easy attachment of the pendants when slack, and further act as shock absorbers during stowage of the fly and during pivotal erection of the jib relative to the fly in the event the components of the crane are improperly adjusted or the operator negligently operates the machine.
摘要翻译：多部分起重机吊臂设有一个飞行部分和一个起重臂部分，该部分可以由桅杆竖立并支撑，并且在起重臂的端部上有吊坠以延长吊杆的有效长度。当不使用飞行部分和悬臂部分时，它们被存储在起重臂上，飞行部分被支撑在起重臂的旁边并且大致平行于起重臂并且起重部分被支撑在飞行部分下方的位置。飞行部分可以单独安装在起重臂的端部，同时起重臂部分保持在存储位置，或者可选地，飞行部分可以安装在起重臂上，并且起重部分可以安装在飞行部分的外端。一对紧凑的钩形弹性连接器用作反向挡块，当悬臂处于接近垂直位置时，防止飞行物超过5度向上枢转超过与悬臂轴线对准的纵向。弹性连接器还允许在松弛时容易地附接吊坠，并且在起重机的装载期间以及在起重机的部件被不适当地调整或者疏忽地操作的情况下，在起重臂相对于飞行器的枢转竖立期间还可充当减震器操作机器。

2. 发明授权

US4491229A Boom extension stowage system 失效
标题翻译： Boom延伸装载系统
公开(公告)号：US4491229A
公开(公告)日：1985-01-01
申请号：US528312
申请日：1983-08-31
申请人： Joseph W. Behrendt , John D. Evans , James W. Cox, Jr.
发明人： Joseph W. Behrendt , John D. Evans , James W. Cox, Jr.
IPC分类号： B66C23/70 , B66C23/62
CPC分类号： B66C23/702
摘要： A multi-section crane boom is provided with a fly section and a jib section which may be erected and supported by a mast and pendants on the end of the boom to extend the effective length of the boom. When the fly section and jib section are not used they are stored on the boom, the fly section being supported alongside of and generally parallel to the boom and the jib section being supported in position below the fly section. The fly section can be mounted on the end of the boom alone while the jib section remains in stored position, or, alternatively, the fly section can be mounted on the boom and the jib section can be mounted on the outer end of the fly section. A pair of compact hook shaped resilient connectors serve as backstops which prevent the fly from pivoting in excess of 5.degree. upwardly past longitudinal of alignment with the boom axis when the boom is in a near vertical position. The resilient connectors also permit easy attachment of the pendants when slack, and further act as shock absorbers during stowage of the fly and during pivotal erection of the jib relative to the fly in the event the components of the crane are improperly adjusted or the operator negligently operates the machine.
摘要翻译：多部分起重机吊臂设有一个飞行部分和一个起重臂部分，该部分可以由桅杆竖立并支撑，并且在起重臂的端部上有吊坠以延长吊杆的有效长度。当不使用飞行部分和悬臂部分时，它们被存储在起重臂上，飞行部分被支撑在起重臂的旁边并且大致平行于起重臂并且起重部分被支撑在飞行部分下方的位置。飞行部分可以单独安装在起重臂的端部，同时起重臂部分保持在存储位置，或者可选地，飞行部分可以安装在起重臂上，并且起重部分可以安装在飞行部分的外端。一对紧凑的钩形弹性连接器用作反向挡块，当悬臂处于接近垂直位置时，防止飞行物超过5度向上枢转超过与悬臂轴线对准的纵向。弹性连接器还允许在松弛时容易地附接吊坠，并且在起重机的装载期间以及在起重机的部件被不适当地调整或者疏忽地操作的情况下，在起重臂相对于飞行器的枢转竖立期间还可充当减震器操作机器。

3. 发明授权

US4434902A Apparatus for extending and retracting a manual boom section 失效
标题翻译：用于伸缩手动吊杆部分的装置
公开(公告)号：US4434902A
公开(公告)日：1984-03-06
申请号：US240727
申请日：1981-03-05
申请人： Frederick R. Goode , John D. Evans , James W. Cox, Jr.
发明人： Frederick R. Goode , John D. Evans , James W. Cox, Jr.
IPC分类号： B66C23/693 , B66C23/697 , B66C23/70 , B66C23/04
CPC分类号： B66C23/705
摘要： A telescopic boom includes at least two sections and a manual section is sections being extended and retracted by a single hydraulic ram. A first coupling selectively connects or releases the ram's cylinder case from the second boom section while a second coupling connects or releases the other end of the cylinder case to the manual section. The first coupling includes a crank for coupling and uncoupling the cylinder case and second section. The second coupling includes a retrieval pin movable into position for connecting the cylinder case to the manual section when retracting the manual section within the second section, and releasable lock mechanisms are provided to lock the manual section in extended position. The method of operating the boom includes the step of pivoting the boom to a near vertical position prior to extending the manual section relative to the second section.
摘要翻译：伸缩臂包括至少两个部分，并且手动部分是通过单个液压压头延伸和缩回的部分。第一联接器选择性地连接或释放冲头的气缸壳体与第二起重臂部分，而第二联接器将气缸壳体的另一端连接或释放到手动部件。第一联接器包括用于联接和解耦气缸壳体和第二部分的曲柄。第二联接器包括可缩回位置的取回销，用于在第二部分中缩回手动部分时将气缸壳体连接到手动部件，并且提供可释放的锁定机构以将手动部件锁定在延伸位置。操作起重臂的方法包括在将手动部分相对于第二部分延伸之前将动臂枢转到近似垂直位置的步骤。

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