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37 条记录 (耗时 0.026 秒)

    Height adjustable support for computer equipment and the like
    35.
    发明授权
    Height adjustable support for computer equipment and the like 失效
    高度可调的支持计算机设备等

    公开(公告)号：US6062148A

    公开(公告)日：2000-05-16

    申请号：US127203

    申请日：1998-07-31

    申请人： Andrew B. Hodge ,  Steven P. Vassallo ,  Alan M. Vale ,  Jonathan I. Kaplan ,  Bradley D. Youngs

    发明人： Andrew B. Hodge ,  Steven P. Vassallo ,  Alan M. Vale ,  Jonathan I. Kaplan ,  Bradley D. Youngs

    IPC分类号： A47B9/02 ,  A47B9/12 ,  A47B9/00

    CPC分类号： A47B9/12 ,  A47B9/02

    摘要： A counterbalance mechanism for height adjustable computer equipment supports and the like that includes a drive shaft mounted on an associated support for axial rotation. The drive shaft is operably connected with a worksurface to facilitate vertical adjustment of the same within a predetermined range. The counterbalance mechanism has a first energy storage device operably connected between the support and the drive shaft, which applies a first axial torque to the drive shaft in a first rotational direction. The first energy storage device is configured such that the first axial torque diminishes at a predetermined rate as the drive shaft rotates in the first rotational direction. A second energy storage device is operably connected between the support and the drive shaft, and applies a second axial torque to the drive shaft in a second rotational direction, opposite to the first rotational direction, thereby defining a resultant counterbalance force which facilitates vertical adjustment of the worksurface. The second energy storage device is configured such that when the drive shaft rotates in the first rotational direction, the second axial torque diminishes at a rate which is substantially equal to the predetermined rate of the first energy storage device, whereby the resultant counterbalance force remains generally constant throughout the predetermined range of vertical adjustment of the worksurface.

    摘要翻译： 一种用于高度可调计算机设备支撑件的平衡机构，其包括安装在相关支撑件上用于轴向旋转的驱动轴。 驱动轴与工作面可操作地连接，以便于在预定范围内垂直调整。 所述平衡机构具有可操作地连接在所述支撑件和所述驱动轴之间的第一储能装置，所述第一储能装置在第一旋转方向上向所述驱动轴施加第一轴向扭矩。 第一能量存储装置构造成使得当驱动轴沿第一旋转方向旋转时，第一轴向扭矩以预定速率减小。 第二能量存储装置可操作地连接在支撑件和驱动轴之间，并且在与第一旋转方向相反的第二旋转方向上向驱动轴施加第二轴向扭矩，从而限定合成的平衡力，其有助于垂直调节 工作表面。 第二能量存储装置构造成使得当驱动轴沿第一旋转方向旋转时，第二轴向扭矩以基本上等于第一能量存储装置的预定速率的速率减小，由此所得的平衡力一般保持 在工程表面的垂直调整的整个预定范围内是恒定的。

    Common drive for shutter blades and objective lens assembly
    36.
    发明授权
    Common drive for shutter blades and objective lens assembly 失效
    快门叶片和物镜组件的共同驱动

    公开(公告)号：US4799077A

    公开(公告)日：1989-01-17

    申请号：US124033

    申请日：1987-11-23

    申请人： Jonathan I. Kaplan ,  Stephen M. Pero

    发明人： Jonathan I. Kaplan ,  Stephen M. Pero

    IPC分类号： G03B13/36 ,  G02B7/28 ,  G02B7/40 ,  G03B9/08 ,  G03B3/00

    CPC分类号： G02B7/40 ,  G02B7/28

    摘要： The shutter blades of a scanning blade shutter and the movable element of an adjustable focus lens in a single lens reflex camera are actuated by a single or common drive. The scanning blade shutter is coupled to the common drive by a rotatably mounted beam member. The movable lens element is also coupled to the common drive through a drive link assembly and the same beam member. Actuation of the beam member by the common drive simultaneously moves the shutter blades in the single lens reflex camera toward their closed positions and moves the lens element coupled thereto by a drive link assembly toward a rangefinder-determined lens focal position. A solenoid coupled to a drive link in the drive link assembly and responsive to rangefinder-derived object distance signals actuates the drive link to uncouple the movable lens element from the beam member when the movable lens element has been moved to a particular focal position determined by the rangefinder. The common drive then moves the shutter blades to their full closed positions after the movable lens element has been uncoupled. The drive link connection between the beam member and the movable lens element is re-established subsequent to film exposure to thereby enable the common drive to return the movable lens element to its initial focal position while moving the shutter of the single lens reflex camera to its full open position.

    Lever for folding a camera having a retractable light source
    37.
    发明授权
    Lever for folding a camera having a retractable light source 失效
    用于折叠具有可伸缩光源的相机的杆

    公开(公告)号：US4452520A

    公开(公告)日：1984-06-05

    申请号：US450284

    申请日：1982-12-16

    申请人： Jonathan I. Kaplan

    发明人： Jonathan I. Kaplan

    IPC分类号： G03B17/04 ,  G03B17/52 ,  G03B13/02

    CPC分类号： G03B17/52 ,  G03B17/04 ,  G03B2215/0507

    摘要： A folding camera including first, second and third housings pivotally interconnected for movement between an operative extended position and a folded position, and a source of artificial illumination, e.g., a strobe, which automatically moves into an operative position as the housings move into the fully extended position. A manually operable lever is pivotally coupled to the third housing and coupled to the strobe such that the rotation of the lever from a first position to a second position is effective to initially move the strobe into a retracted position and thereafter continued application of force to the lever causes rotation of the third and second housings into a folded position atop the first housing.

    摘要翻译： 一种折叠式照相机，包括第一，第二和第三壳体，所述第一，第二和第三壳体枢转地互连，用于在可操作的延伸位置和折叠位置之间移动，以及人造照明源，例如闪光灯，当所述壳体移动到完全位置时，该照明装置自动移动到操作位置 延长位置 手动操作的杠杆枢转地联接到第三壳体并且联接到闪光灯，使得杠杆从第一位置到第二位置的旋转有效地将闪光灯最初移动到缩回位置，并且此后继续施加到 杠杆使第三和第二壳体旋转到第一壳体顶部的折叠位置。