公开(公告)号：US3752513A

公开(公告)日：1973-08-14

申请号：US3752513D

申请日：1971-08-26

Applicant: BURROUGHS CORP

Inventor： SIMS D ,  PRICE F

IPC: F16D1/08 ,  F16D1/06

CPC classification number: F16D1/0847 ,  Y10T403/7018 ,  Y10T403/7041 ,  Y10T403/7073 ,  Y10T403/7098

Abstract: A locking device serving as a key for securing an annular member or hub against axial movement on a shaft and for repetitively self-returning the hub to an angular preset condition and thereafter holding the same against rotation relative to the shaft. The hub has a tapped radial hole through the center of which a transverse slot extends and in which the locking key is received. A set screw is threadedly advanced in the tapped hole to apply increasing pressure on the midportion of the locking key so that spaced parts of the key will contact the slot floor and a flat surface on the shaft creating moments of force which act in offset relation to the shaft''s axis with the result that relative rotation of the shaft and hub will occur until a preset angular or home position is reached at which time the slot floor and the flat of the shaft extend parallel to one another.

Abstract translation: 一种锁定装置，其用作用于固定环形构件或轮毂以防止在轴上的轴向运动的钥匙，并且用于将轮毂重复地自回复到预定的角度并且之后保持相对于轴的转动。 轮毂具有穿过其中心的分接径向孔，横向狭槽延伸并且其中锁定键被接收。 固定螺丝在螺纹孔中螺纹前进，以在锁定键的中间部分处施加增加的压力，使得键的间隔部分将接触槽底板，并且轴上的平坦表面产生作用在与 轴的轴线的结果是轴和轮毂的相对旋转将发生，直到达到预设的角度或原点位置，此时槽底板和轴的平面彼此平行延伸。

公开(公告)号：US3856998A

公开(公告)日：1974-12-24

申请号：US36612873

申请日：1973-06-01

Applicant: BURROUGHS CORP

Inventor： SIMS D

IPC: H01H13/52 ,  H01H13/705 ,  H01H13/80 ,  H01H13/70

CPC classification number: H01H13/80 ,  H01H13/52 ,  H01H13/705 ,  H01H2201/002 ,  H01H2201/004 ,  H01H2203/054 ,  H01H2221/026 ,  H01H2221/062 ,  H01H2233/074 ,  H01H2235/004 ,  H01H2235/018 ,  H01H2235/022 ,  H01H2235/03

Abstract: The disclosure relates generally to key assemblies employed in electrical switch operating keyboard devices and more particularly to the assembly of parts forming an individual depressible key of such a keyboard. Each key assembly is composed of parts cooperatively interfitting to provide both a low profile for the keyboard as well as a bifurcated electrical contact provision. Included in each key assembly is a pair of coiled springs of different diameters which are coaxially and overlappingly related to one another. The smaller diameter spring of the pair is a double rate spring and as such is formed with two longitudinal sections of different helical pitches for conveying forces employed to depress the key to the switch associated with the assembly to effect closure of the same, as well as for substantially reducing if not eliminating a detrimental contact ''''bounce'''' encountered in the operation of such assemblies. The force transmitting spring member acts through a terminal member shaped to provide a teetering motion in conjunction with the desired bifurcated action for assuring closure of the contacts. The assembly is composed of parts formed mainly of plastic material molded to shape and as such provides a durable, light-weight, and low cost structure.

Abstract translation: 本公开总体上涉及在电气开关操作键盘装置中使用的关键组件，更具体地涉及形成这种键盘的单个可按压键的部件的组装。 每个按键组合件由协同配合的部件组成，以提供键盘的低轮廓以及分叉的电气接触提供。 每个钥匙组件中包括一对不同直径的螺旋弹簧，它们彼此同轴且重叠地相关。 该对的较小直径的弹簧是双速弹簧，并且因此形成有两个不同螺旋节距的纵向部分，用于输送力，用于将钥匙按压到与组件相关的开关以实现其关闭，以及 用于大大减少，如果不消除在这种组件的操作中遇到的有害接触“反弹”。 力传递弹簧构件通过端子构件作用，该端子构件成形为提供与期望的分叉动作相结合的跷跷板运动，以确保接触件的闭合。 组件由主要由模制成形的塑料材料形成的部件组成，并且因此提供耐用，轻便和低成本的结构。