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公开(公告)号：EP1069261B1
公开(公告)日：2006-05-17
申请号：EP00305873.2
申请日：2000-07-12
申请人： Paratech, Inc.
CPC分类号： E21D15/56 , E04G25/04 , E04G25/06 , E04G25/065 , E04G2025/047 , E21D15/44 , Y10T74/20666
摘要： A strut (10) or strut system continuously adjustable in length for maintaining two bodies in a spaced relationship with respect to each other. Both the length of the strut (10) and the locking of the strut (10) at a desired length may be remotely controlled by pneumatic pressure. The strut system includes a cylindrical outer member (24) having a cylindrical bore for receiving a cylindrical inner member (22). The cylindrical inner member (22) is provided with a helical groove (42) for engagement with ball bearings (40) which are retained in a helical pattern in a collar (30) attached to the end of the cylindrical outer member (24) which receives the cylindrical inner member (22). The collar (30) is adjustable between a first position in which the ball bearings (40) are engaged in the helical groove (42) in the cylindrical inner member (22) and a second position in which they are disengaged from the helical groove (42) in the cylindrical inner member (22). When the ball bearings (40) are engaged in the helical groove (42) in the cylindrical inner member (22), the cylindrical inner and outer members (22,24) may be rotated with respect to each other to adjust the overall length of the strut (10). Further, the strut (10) will resist a compressing force applied to the opposite ends of the strut. When the collar (30) is in the second position with the ball bearings (40) disengaged from the helical groove (42) in the cylindrical inner member (22), the cylindrical inner and outer members (22,24) may be freely reciprocated with respect to each other. Pneumatic pressure may be used to adjust the collar (30) between the two positions, and to extend the cylindrical inner and outer members (22,24) with respect to each other.
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公开(公告)号：EP1069261A1
公开(公告)日：2001-01-17
申请号：EP00305873.2
申请日：2000-07-12
申请人： Paratech, Inc.
CPC分类号： E21D15/56 , E04G25/04 , E04G25/06 , E04G25/065 , E04G2025/047 , E21D15/44 , Y10T74/20666
摘要： A strut (10) or strut system continuously adjustable in length for maintaining two bodies in a spaced relationship with respect to each other. Both the length of the strut (10) and the locking of the strut (10) at a desired length may be remotely controlled by pneumatic pressure. The strut system includes a cylindrical outer member (24) having a cylindrical bore for receiving a cylindrical inner member (22). The cylindrical inner member (22) is provided with a helical groove (42) for engagement with ball bearings (40) which are retained in a helical pattern in a collar (30) attached to the end of the cylindrical outer member (24) which receives the cylindrical inner member (22). The collar (30) is adjustable between a first position in which the ball bearings (40) are engaged in the helical groove (42) in the cylindrical inner member (22) and a second position in which they are disengaged from the helical groove (42) in the cylindrical inner member (22). When the ball bearings (40) are engaged in the helical groove (42) in the cylindrical inner member (22), the cylindrical inner and outer members (22,24) may be rotated with respect to each other to adjust the overall length of the strut (10). Further, the strut (10) will resist a compressing force applied to the opposite ends of the strut. When the collar (30) is in the second position with the ball bearings (40) disengaged from the helical groove (42) in the cylindrical inner member (22), the cylindrical inner and outer members (22,24) may be freely reciprocated with respect to each other. Pneumatic pressure may be used to adjust the collar (30) between the two positions, and to extend the cylindrical inner and outer members (22,24) with respect to each other.
摘要翻译： 支柱（10）或支柱系统可连续调节长度，用于维持两个彼此间隔开的物体。 支柱（10）的长度和支柱（10）在所需长度上的锁定都可以通过气动压力来远程控制。 支柱系统包括具有用于容纳圆柱形内部构件（22）的圆柱形孔的圆柱形外部构件（24）。 圆柱形内部构件（22）设置有用于与滚珠轴承（40）接合的螺旋槽（42），所述螺旋槽以螺旋形图案保持在附接到圆柱形外部构件（24）的端部的轴环（30）中，该轴环 接收圆柱形内部构件（22）。 轴环（30）可在其中球轴承（40）接合在圆柱形内部构件（22）中的螺旋槽（42）中的第一位置和与螺旋槽脱离的第二位置之间可调节 42）在圆柱形内部构件（22）中。 当球轴承（40）接合在圆柱形内部构件（22）中的螺旋槽（42）中时，圆柱形内部和外部构件（22,24）可以相对于彼此旋转，以调整总体长度 支柱（10）。 此外，支柱（10）将抵抗施加到支柱的相对端的压缩力。 当轴环（30）处于第二位置，其中球轴承（40）与圆柱形内部构件（22）中的螺旋槽（42）脱离时，圆柱形内部和外部构件（22,24）可以自由地往复运动 相对于彼此。 可以使用气动压力来调节两个位置之间的套环（30），并且使圆筒形的内部和外部构件（22,24）相对于彼此延伸。
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公开(公告)号：EP2536919B1
公开(公告)日：2014-04-23
申请号：EP11708315.4
申请日：2011-01-31
CPC分类号： E21D15/46 , E21D15/56 , E21D15/581 , E21D15/585
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