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公开(公告)号：USD412894S
公开(公告)日：1999-08-17
申请号：US91599
申请日：1998-08-03
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公开(公告)号：US06257538B1
公开(公告)日：2001-07-10
申请号：US09180786
申请日：1998-11-16
申请人： Donald R. Pangborn , Peter J. Kerl
发明人： Donald R. Pangborn , Peter J. Kerl
IPC分类号： E04G300
CPC分类号： A47B21/0314 , A47B2021/0335 , A47B2021/0342
摘要： A mechanism for mounting a keyboard supporting surface on a base including a linkage for mounting the surface for vertical swinging movement relative to the base and for vertical tilting movement relative thereto, a lock device for simultaneously locking the surface against swinging and tilting movements, a counterbalance spring for opposing downwardly directed swinging movement of said surface and a return spring for opposing downwardly directed tilting movement of said surface.
摘要翻译： 一种用于将键盘支撑表面安装在基座上的机构，包括用于安装表面的联动装置，用于相对于基座的垂直摆动运动，并且用于相对于其垂直倾斜运动;锁定装置，用于同时锁定表面以防止摆动和倾斜运动;平衡 用于所述表面的相对的向下指向的摆动运动的弹簧和用于使所述表面相对的向下指向的倾斜运动的复位弹簧。
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公开(公告)号：US5501420A
公开(公告)日：1996-03-26
申请号：US261444
申请日：1994-06-17
CPC分类号： A47B21/0073 , F16M11/041 , F16M11/10 , F16M11/2021 , F16M11/38 , F16M13/00 , F16M2200/041 , Y10S248/919 , Y10S248/92 , Y10S248/923
摘要： A counterbalance mechanism for vertically positioning a load includes auxiliary linkage means associated with an upper end of the mechanism for carrying a load and automatically varying the vertical angular orientation of the load incident to vertical movement of the load.
摘要翻译： 用于垂直定位负载的平衡机构包括与机构的上端相关联的辅助联动装置，用于承载负载并自动改变入射到负载的垂直运动的负载的垂直角度取向。
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公开(公告)号：US06443075B1
公开(公告)日：2002-09-03
申请号：US09700232
申请日：2000-11-13
IPC分类号： A47B900
CPC分类号： A47B9/02
摘要： A height adjustable mechanism for supporting a work surface for vertical movement relative to a base includes a counterbalance mechanism for providing a force opposing a downward force tending to lower the work surface; a brake mechanism for releasably retaining the work surface in a desired vertical position; a user operated release mechanism for selectively releasing the brake mechanism to permit vertical movement of the work surface; and an interlock mechanism for preventing release of the brake mechanism if the force and the downward force are out of balance by some given extent. In the preferred construction, the interlock mechanism includes an interlock plate supported by the base for pivotal movement between first and second blocking positions when the force is less than and greater than the downward force, respectively, through a neutral position when the force essentially corresponds to the downward force, and the release mechanism engages with the interlock plate when in the blocking positions thereof to prevent release of the brake mechanism by a user.
摘要翻译： 用于支撑用于相对于基座的垂直运动的工作表面的高度可调机构包括：平衡机构，用于提供相对于趋向于降低工作表面的向下力的力; 用于将工作表面可释放地保持在期望的垂直位置的制动机构; 用户操作的释放机构，用于选择性地释放所述制动机构以允许所述工作表面垂直移动; 以及如果力和向下的力在一定程度上失衡，则防止制动机构释放的互锁机构。 在优选的结构中，互锁机构包括一个由基座支撑的互锁板，用于在第一和第二阻挡位置之间枢转运动时，当力小于和大于向下的力时，当力基本对应于 向下的力，并且当处于其阻挡位置时，释放机构与互锁板接合，以防止使用者释放制动机构。
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