专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US4492080A Tractor hydraulic control systems 失效
标题翻译：拖拉机液压控制系统
公开(公告)号：US4492080A
公开(公告)日：1985-01-08
申请号：US590675
申请日：1984-02-21
申请人： Robert E. Yapp , John D. Smith
发明人： Robert E. Yapp , John D. Smith
IPC分类号： A01B63/00 , A01B63/10 , A01B63/111 , F15B9/08
CPC分类号： A01B63/1013 , A01B63/1117
摘要： A tractor hydraulic control system of the kind comprising a power lift with a hydraulic actuator (12) and a main control valve (17) controlling the supply of fluid from a pump (19) to the actuator, the system including selector valve means (50) interconnected with the main control valve (17) and movable between a first position in which flow to and from the actuator (12) occurs via the selector valve means under the control of the main control valve and the associated system control mechanism (28) and a second position in which the actuator is hydraulically locked in a given position and an external services outlet (51) is placed in communication with the pump. Linkage means (60,61,62) operatively connects the selector valve means (50) and the system control mechanism (28) to condition the main control valve (17) to cause the pump (19) to supply fluid to the external service outlet (51) via the selector valve means on movement of the selector valve means to the second position. Preferably, the main control valve (17) is biased towards a position in which the pump delivery its maximum output flow to the selector valve means and movement of the selector valve means to its second position is arranged to disconnect the control mechanism from the main control valve.
摘要翻译：一种拖拉机液压控制系统，包括具有液压致动器（12）的动力升降器和控制从泵（19）向致动器供给流体的主控制阀（17），该系统包括选择阀装置（50 ）与所述主控制阀（17）相互连接，并且可在主控制阀和相关的系统控制机构（28）的控制下经由所述选择阀装置在所述第一位置与所述致动器（12）之间流动和流动的第一位置之间移动; 以及第二位置，其中致动器被液压地锁定在给定位置，并且外部服务出口（51）被放置成与泵连通。连接装置（60,61,62）可操作地连接选择阀装置（50）和系统控制机构（28）以调节主控制阀（17），以使泵（19）向外部服务出口（51）在选择阀装置移动到第二位置时经由选择阀装置。优选地，主控制阀（17）被偏压到泵输送到其选择阀装置的最大输出流量并且选择阀装置移动到其第二位置的位置，以将控制机构与主控制器阀。

2. 发明授权

US4445394A Control lever arrangements 失效
标题翻译：控制杆装置
公开(公告)号：US4445394A
公开(公告)日：1984-05-01
申请号：US297886
申请日：1981-08-31
申请人： Robert E. Yapp , Derek J. Smith
发明人： Robert E. Yapp , Derek J. Smith
IPC分类号： F16C1/16 , G05G1/04 , G05G7/04 , F16C1/10
CPC分类号： G05G1/04 , F16C1/16 , G05G7/04 , Y10T74/2014 , Y10T74/2042
摘要： A control lever arrangement (10) for longitudinally moving an actuating member such as a Bowden cable (11) between first and second positions. The arrangement includes first (13) and second (14) mutually inclined cam slots and a control lever (15) which has a handle at one end and which is pivotally mounted (20) at the other end on a follower (16) for engagement with the first cam slot. The lever (15) carries guidance means (17) for engagement with the second cam slot and is connected (21) with the actuations member (11), so that, as the control lever is rotated (X1,X2) about its mounting (20) on the follower (16) to move the actuating member between its first and second positions, the follower moves along the first (13) cam slot as the guidance means (17) moves along the second cam slot (14) and the point of contact of the follower (16) with the first slot (13) moves across the line of action (33) of the actuating member (11) so that the lever goes over-center.
摘要翻译：一种用于在第一和第二位置之间纵向移动诸如鲍登缆线（11）的致动构件的控制杆装置（10）。该装置包括第一（13）和第二（14）相互倾斜的凸轮槽和控制杆（15），该控制杆在一端具有把手，并且在另一端可枢转地安装在另一端（20）上，用于接合与第一个凸轮槽。杠杆（15）承载引导装置（17），用于与第二凸轮槽接合并且与致动构件（11）连接（21），使得当控制杆围绕其安装（X1，X2）旋转时（X1，X2） 20）在从动件（16）上以使致动构件在其第一和第二位置之间移动，随着引导装置（17）沿着第二凸轮槽（14）移动，随动件沿着第一（13）凸轮槽移动，从动件（16）与第一槽（13）的接触移动穿过致动构件（11）的作用线（33），使得杠杆越过中心。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式