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公开(公告)号：US07281374B2
公开(公告)日：2007-10-16
申请号：US11390464
申请日：2006-03-28
摘要： A chair elevating/lowering hydraulic device includes at least a foot pump 3 which absorbs oil by an ascent of an operation lever 1, which discharges oil stored by a stepping-on of the operation lever, and which discharges stored oil by a stepping-on of the operation lever to a lowest position, a check valve 5 which is opened by the oil pressure of the oil discharged from the foot pump, which is opened when the foot pump is lowered to the lowest position, and which allows the oil from the non-return side to pass to allow it to return to an oil tank through the foot pump, an elevating/lowering cylinder 7, and an accumulator 6.
摘要翻译： 椅子升降液压装置至少包括脚踏泵3，其通过操作杆1的上升吸收油，其排出通过操作杆的踩踏而存储的油，并且通过踩踏来排出储存的油 的操作杆到达最低位置时的止回阀5，其由从脚泵排出的油的油压打开，当脚泵下降到最低位置时打开，并且允许来自 不返回侧通过，以允许其通过脚泵，升降缸7和蓄能器6返回到油箱。
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公开(公告)号：US20060225415A1
公开(公告)日：2006-10-12
申请号：US11390464
申请日：2006-03-28
IPC分类号： F16D31/02
摘要： In order to solve a problem in a conventional device in which an operation lever is stepped on by a foot to supply oil to an elevating/lowering cylinder, in that since oil supply to the elevating/lowering cylinder is stopped every time the operation lever is stepped on, a seat part stops every time oil supply to the hydraulic cylinder is stopped, and in that such a device gives the person who receives technician's work shock and an uncomfortable feeling, a chair elevating/lowering hydraulic device is composed of a foot pump 3 which absorbs oil by an ascent of an operation lever 1, which discharges oil stored by a stepping-on of the operation lever, and which discharges stored oil by a stepping-on of the operation lever to a lowest position, a check valve 5 which is opened by the oil pressure of the oil discharged from the foot pump, which is opened when the foot pump is lowered to the lowest position, and which allows the oil from the non-return side to pass to allow it to return to an oil tank through the foot pump, an elevating/lowering cylinder 7 which is for elevating/lowering a seat part and which is coupled with the non-return side of the check valve through flow rate regulating means such as an orifice or the like, and an accumulator 6 coupled in parallel with the flow rate regulating means in the non-return side of the check valve.
摘要翻译： 为了解决在操作杆由脚踩踏以向升降缸供给油的传统装置中的问题，因为每当操作杆为止时，停止向升降缸的供油停止 踩踏时，每当液压缸供油停止时，座椅部分停止，并且由于这种装置给予接收到技术人员的工作震动和不舒服的感觉的人，所以升降升降液压装置由脚踏泵 3，其通过操作杆1的上升吸收油，其通过操作杆的踩踏而排出储存的油，并且通过操作杆的步进将储存的油排出到最低位置;止回阀5 其由从脚泵排出的油的油压打开，当脚泵下降到最低位置时，其被打开，并且允许来自不返回侧的油通过以允许其返回到 通过脚泵的油箱，用于升降座椅部件的升降缸7，其通过诸如孔口等流量调节装置与止回阀的止回侧联接， 以及与止回阀的止回侧中的流量调节装置并联连接的蓄能器6。
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