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1. 发明授权

US5637837A Platform lifting and lowering mechanism for weighing apparatus 失效
标题翻译：称重设备平台升降机构
公开(公告)号：US5637837A
公开(公告)日：1997-06-10
申请号：US228034
申请日：1994-04-15
申请人： Ralph C. Merz , Thomas L. Haack
发明人： Ralph C. Merz , Thomas L. Haack
IPC分类号： G01G21/22 , G01G19/00
CPC分类号： G01G21/22
摘要： A weighing apparatus with pneumatic cylinder and piston assemblies for lifting a hinged platform includes a self-deploying mechanism to secure the platform in the raised position, a mechanism for remotely repositioning the self-deploying securing mechanism to enable lowering of the platform, and a control mechanism to remotely activate the lifting and securing of the platform and the unsecuring and lowering of the platform and to prevent unauthorized operation. The self-deploying securing mechanism includes an arm pivotally connected to the underside of the platform and arranged so that the other, free end of the arm pivots to a position to secure the platform when the platform is raised to a pre-determined height. The repositioning mechanism includes a pneumatic cylinder and piston assembly mounted perpendicular to the cylinder and piston assembly used to lift the platform. The piston of the repositioning cylinder and piston assembly is aligned to contact and reposition the free end of the platform securing arm to allow the platform to be lowered. The control mechanism includes a pneumatic controller equipped with a switch operated by a removable key.
摘要翻译：具有用于提升铰链平台的气动缸和活塞组件的称重装置包括用于将平台固定在升高位置的自展开机构，用于远程重新定位自身部署固定机构以使平台能够降低的机构，以及控制远程激活平台提升和固定以及平台不安定和降低的机制，防止未经授权的操作。自展开固定机构包括枢转地连接到平台的下侧的臂，并且布置成使得当平台升高到预定高度时，臂的另一个自由端枢转到固定平台的位置。重新定位机构包括垂直于用于提升平台的气缸和活塞组件安装的气缸和活塞组件。对准重新定位缸和活塞组件的活塞对齐以接触和重新定位平台固定臂的自由端，以允许平台被降低。控制机构包括配备有由可拆卸键操作的开关的气动控制器。

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