公开(公告)号：US4744019A

公开(公告)日：1988-05-10

申请号：US906302

申请日：1986-09-12

申请人： Jessan C. Krogsrud

发明人： Jessan C. Krogsrud

IPC分类号： F16M11/04 ,  F21V21/108 ,  F21V21/18 ,  F21V21/26 ,  F21V21/30

CPC分类号： F21S6/003 ,  F16M11/10 ,  F16M11/2064 ,  F16M13/022 ,  F21V21/26 ,  F21V21/30 ,  F16M2200/044 ,  F16M2200/068 ,  F21V21/08

摘要： A counterbalanced arm assembly is disclosed which includes a mounting bracket and a first arm pivotally connected to the mounting bracket along a first pivot axis. The first arm includes an inner arm located within it which is pivotally connected to the mounting bracket along a second pivot axis. A spring carrier is located near the first pivot axis and a tension spring is connected between the carrier and the bracket. The spring carrier includes a lower end defining a pair of spaced bearing surfaces located respectively to engage a pair of bearing surfaces on the bracket, with the spring biasing the bearing surfaces into engagement and providing the counterbalancing forces for the arm assembly. The bearing surfaces of the spring carrier are located on opposite sides of the first pivot axis so that as the first arm is pivoted about its first pivot axis in either direction from the vertical, one or the other of the spring carrier bearing surfaces engages the bearing surfaces of the bracket causing the glider to exert a counterbalancing force against one or the other of the inner surfaces of the first arm. The spring provides the exact counterbalancing force to the arm assembly at all angles to which the arm can be moved.

摘要翻译： 公开了一种平衡臂组件，其包括安装支架和沿着第一枢轴枢转地连接到安装支架的第一臂。 第一臂包括位于其内的内臂，其沿着第二枢转轴线枢转地连接到安装支架。 弹簧托架位于第一枢转轴线附近，并且拉伸弹簧连接在托架和托架之间。 弹簧支架包括限定一对间隔开的支承表面的下端，分别位于支架上的一对支承表面上，弹簧将支承面偏置成啮合并为臂组件提供平衡力。 弹簧支架的支承表面位于第一枢转轴线的相对侧上，使得当第一臂围绕其第一枢转轴线从垂直方向沿任一方向枢转时，弹簧支承件支承表面中的一个或另一个与轴承 支架的表面导致滑行器对第一臂的内表面中的一个或另一个施加平衡力。 弹簧在臂可以移动的各个角度向臂组件提供精确的平衡力。

公开(公告)号：US4796162A

公开(公告)日：1989-01-03

申请号：US131869

申请日：1987-12-11

申请人： Jessan C. Krogsrud

发明人： Jessan C. Krogsrud

IPC分类号： F16M11/04 ,  F21V21/26 ,  F21V21/28 ,  F21V21/30

CPC分类号： F21S6/003 ,  F16M11/10 ,  F16M11/2064 ,  F16M11/2092 ,  F16M11/24 ,  F16M13/022 ,  F21V21/26 ,  F21V21/30 ,  F16M2200/044 ,  F16M2200/068 ,  F21V21/08

摘要： A counterbalanced arm assembly is disclosed which includes a mounting bracket and a first arm pivotally connected to the mounting bracket along a first pivot axis. The first arm includes an inner arm located within it which is pivotally connected to the mounting bracket along a second pivot axis. A spring carrier is located near the first pivot axis and a tension spring is connected between the carrier and the bracket. The spring carrier includes a lower end defining a pair of spaced bearing surfaces located respectively to engage a pair of bearing surfaces on the bracket, with the spring biasing the bearing surfaces into engagement and providing the counterbalancing forces for the arm assembly. The bearing surfaces of the spring carrier are located on opposite sides of the first pivot axis so that as the first arm is pivoted about its first pivot axis in either direction from the vertical, one or the other of the spring carrier bearing surfaces engages the bearing surfaces of the bracket causing the glider to exert a counterbalancing force against one or the other of the inner surfaces of the first arm. The spring provides the exact counterbalancing force to the arm assembly at all angles to which the arm can be moved.

摘要翻译： 公开了一种平衡臂组件，其包括安装支架和沿着第一枢轴枢转地连接到安装支架的第一臂。 第一臂包括位于其内的内臂，其沿着第二枢转轴线枢转地连接到安装支架。 弹簧托架位于第一枢转轴线附近，并且拉伸弹簧连接在托架和托架之间。 弹簧支架包括限定一对间隔开的支承表面的下端，分别位于支架上的一对支承表面上，弹簧将支承面偏置成啮合并为臂组件提供平衡力。 弹簧支架的支承表面位于第一枢转轴线的相对侧上，使得当第一臂围绕其第一枢转轴线从垂直方向沿任一方向枢转时，弹簧支承件支承表面中的一个或另一个与轴承 支架的表面导致滑行器对第一臂的内表面中的一个或另一个施加平衡力。 弹簧在臂可以移动的各个角度向臂组件提供精确的平衡力。