Pressure transducer
    2.
    发明授权
    Pressure transducer 失效
    压力传感器

    公开(公告)号:US4314228A

    公开(公告)日:1982-02-02

    申请号:US140937

    申请日:1980-04-16

    Abstract: A pressure transducer device particularly useful in an electronic musical instrument includes a flexible base folded to define upper and lower flexible base portions, a donut-shaped first spacer between the upper and lower base portions and a resiliently deformable diaphragm attached about its periphery to the upper flexible base portion with a second donut-shaped spacer therebetween. A center region of the diaphragm laterally spaced from the second spacer is adhesively attached to a central region of the upper flexible base portion so that the upper flexible base portion moves inwardly and outwardly in response to the movement of the diaphragm. A pair of conductors are disposed on the folded flexible base member to face one another. A pressure responsive composition disposed over the conductors provides a contact resistance across the pair of conductors which varies inversely with the amount of pressure force exerted against the diaphragm. The upper flexible base portion may be attached between the first and second spacers about its entire periphery or at a small hinge region with the upper base portion being a flap movable about the hinge region in the region surrounded by the first spacer.

    Abstract translation: 特别可用于电子乐器的压力传感器装置包括折叠以限定上部和下部柔性基部的柔性基座,在上部和下部基部之间的环形第一间隔件以及围绕其周边附接到上部的弹性可变形隔膜 柔性基部,其间具有第二环形间隔件。 与第二间隔件横向间隔开的隔膜的中心区域粘附地附接到上柔性基部的中心区域,使得上柔性基部部分响应于隔膜的移动而向内和向外移动。 一对导体设置在折叠的柔性基底构件上以彼此面对。 布置在导体上的压力响应组合物提供横跨该对导体的接触电阻,其与施加在隔膜上的压力的量成反比变化。 上部柔性基部可以围绕其整个周边或小铰链区域附接在第一和第二间隔件之间,而上部基部是围绕第一间隔件包围的区域中的铰链区域可移动的挡板。

    Push-button switches
    4.
    发明授权
    Push-button switches 失效
    按钮开关

    公开(公告)号:US4289943A

    公开(公告)日:1981-09-15

    申请号:US173330

    申请日:1980-07-29

    Applicant: Ryoichi Sado

    Inventor: Ryoichi Sado

    Abstract: Different from conventional push-button switches with which an electric circuit is closed and opened as the button top is pushed with a finger tip and as the finger tip is withdrawn from the button top, respectively, the inventive push-button switch operates in a unique manner that the electric circuit is opened already as the pushing force by the finger tip is still on the way of increasing. The inventive push-button switches utilize the delicate snap back action taking place as the strain in the snap spring portion in the diaphragm covering of the switch exceeds a certain critical point so as to spontaneously pull apart the movable contact member on the inward surface of the covering from the fixed contact points on the base plate while the button top is still under pushing with a finger tip. The inventive push-button switch is advantageous because of the absence of the transient disturbances in the circuit such as chattering and bouncing.

    Abstract translation: 与传统的按钮开关不同,当按钮顶部被指尖推动时,电路闭合并打开,并且当指尖从按钮顶部分离时,本发明的按钮开关以独特的方式操作 当指针的推力仍然在增加时,电路已经打开了。 本发明的按钮开关利用当开关的隔膜覆盖物中的卡扣弹簧部分中的应变超过某一临界点时发生的精细的回弹动作,从而将可动接触构件自发地拉离在开口的内表面上 当按钮顶部仍然用指尖推动时,从基板上的固定接触点覆盖。 本发明的按钮开关是有利的,因为电路中没有瞬时干扰,例如抖动和跳动。

    Dual spring actuator for keyboard switch assembly
    5.
    发明授权
    Dual spring actuator for keyboard switch assembly 失效
    键盘开关总成双簧片执行器

    公开(公告)号:US4117292A

    公开(公告)日:1978-09-26

    申请号:US805347

    申请日:1977-06-10

    Abstract: An economical yet versatile dual spring actuator switch assembly providing an excellent tactile impression includes a planar switch closure assembly having domed protrusions extending from a surface thereof to provide switch closure when depressed and a switch actuator assembly. The easily assembled switch actuator assembly includes a cover plate with a guiding, key receiving plate aperture disposed therein opposite each protrusion, a plurality of keys, each key having a central key aperture, and a guide post within the central key aperture and being slideably received by a different plate aperture, a plurality of followers, each disposed adjacent a different protrusion and having a central aperture slideably receiving a guide post in guiding, mating relationship, a plurality of first springs, each maintaining a repulsive force between a different key and the surface, and a plurality of second springs, each coupling a different key to a follower to communicate a switch closure force to a protrusion upon depression of a key. The double spring arrangement permits independent selection of key and protrusion actuation forces and buffers each protrusion from its associated key for longer switch lifetime.

    Abstract translation: 具有优异的人为因素考虑的廉价但高度可靠的电开关触点组件包括具有多个开关位置的电触点组件,与开关触点组件相邻设置的盖板,每个开关位置具有孔,并且在每个开关位置 多孔密钥,设置在密钥孔内的随动件,包含键孔内的随动件的盖和分别偏置键和从动件的键和从动弹簧,以提供对键致动和开关接触闭合力的独立且独立的控制。 随动件的触点接合柱可以精确地定位在开关触点上方,尽管弹簧特性的变化,曲线接合表面确保了用于高可靠性开关致动的最佳分布式开关闭合压力。 切换具有相对布置和交错的圆形和径向延伸部分的接触图案确保了多个开关闭合接合的安全性。

    Tactile feedback keyboard switch assembly and actuator
    6.
    发明授权
    Tactile feedback keyboard switch assembly and actuator 失效
    触觉反馈键盘开关组件和执行器

    公开(公告)号:US3969600A

    公开(公告)日:1976-07-13

    申请号:US586039

    申请日:1975-06-11

    Abstract: The disclosure relates generally to key assemblies employed in electrical switch operating keyboard devices and more particularly to the improved assembly of parts forming an individual depressible key on such a keyboard. Each key assembly is comprised of parts cooperatively interfitting to provide both audio and tactile feedback for the keyboard as well as a bifurcated electrical contact provision. Included in each key assembly is a spring having a buckling beam member with two end supports that will resist a key depression, a hermetic rubber pad that will also resist key depression and a pair of spring straddling members depending from the key assembly 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 pair of depending members cooperate with the straddle spring to provide a rocker or teetering motion in conjunction with the desired bifurcated action for assuring closure of the contacts.

    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,更具体地涉及在这种键盘上形成单独的可按压键的部件的改进组装。 每个按键组件由协同配合的部件组成,为键盘提供音频和触觉反馈以及分叉的电气接触提供。 包括在每个按键组件中的是弹簧,该弹簧具有带有两个端部支撑件的抗弯构件梁,该端部支撑件将抵抗钥匙凹陷,还可以抵抗钥匙凹陷的密封橡胶垫圈以及从键组件悬挂的一对弹簧跨接构件用于输送力 按压与组件相关联的开关的键以实现其关闭,并且用于基本上减少,如果不消除在这种组件的操作中遇到的有害接触弹跳。 力传递对的悬挂构件与跨弹簧配合以提供与所需的分叉动作结合的摇臂或跷跷板运动,以确保接触件的闭合。

    Pushbutton cantilevered leaf spring contact switch assembly for keyboard type switch arrays
    7.
    发明授权
    Pushbutton cantilevered leaf spring contact switch assembly for keyboard type switch arrays 失效
    键盘类型开关阵列的按钮式叶片弹簧触点开关组件

    公开(公告)号:US3746816A

    公开(公告)日:1973-07-17

    申请号:US3746816D

    申请日:1971-05-18

    Inventor: BRADY J

    Abstract: A low profile electromechanical keyboard switch, displaying very low electrical bounce. The switch key top bears against a generally cylindrical plunger which has a depressed flat portion on its side engageable with a tactile ball biased by a spring nested in the switch housing. Upon application of a force to the key top which exceeds a threshold value, the tactile ball is displaced from the flat and over the shoulder defined between the depressed flat and the cylindrical portion of the plunger. Sudden, positive movement of the plunger against an underlying contact leaf ensues. The contact leaf is branched into multiple contact fingers, and arranged with respect to an underlying contact plate so that wiping contact occurs between fingers and plate. The switch housing is configured to carry sufficient diodes and resistors to assure full control and encoding functions in the keyboard in which such switch may be mounted.

    Abstract translation: 低调的机电键盘开关,显示非常低的电气反弹。 开关键顶靠在大致圆柱形的柱塞上,该柱塞在其侧面上具有凹陷的平坦部分,可与由嵌套在开关壳体中的弹簧偏置的触觉球接合。 在对键顶施加超过阈值的力时,触觉球从位于凹陷的平面和柱塞的圆柱形部分之间的平坦部分和肩膀上移位。 突然之后,柱塞抵抗下面的接触叶片的正运动。 接触叶片分支成多个接触指,并相对于下面的接触板布置,使得指状物和板之间发生擦拭接触。 开关壳体被配置为携带足够的二极管和电阻器,以确保可以安装这种开关的键盘中的完全控制和编码功能。

    Contact bounce reduction system
    8.
    发明授权

    公开(公告)号:US11742157B2

    公开(公告)日:2023-08-29

    申请号:US18010712

    申请日:2021-05-28

    Inventor: Per Krainer

    Abstract: A contact bounce reduction system including: a movable member, and a contact bounce damping device including: a body, a first ball and a second ball, a first resilient member and a second resilient member, a piston. The first resilient member holds the first ball in the seat and the second resilient member holds the second ball in the seat when the piston is in a default extended position, and a third resilient member biases the piston towards the default extended position. The movable member actuates the piston towards the retracted position, causing the first ball and the second ball to move radially out from the seat, and the third resilient member to accumulate energy.

    KEYPAD DE-BOUNCING APPARATUS AND METHOD
    10.
    发明申请
    KEYPAD DE-BOUNCING APPARATUS AND METHOD 失效
    键盘去除装置和方法

    公开(公告)号:US20110004711A1

    公开(公告)日:2011-01-06

    申请号:US12881032

    申请日:2010-09-13

    CPC classification number: H03M11/20 H01H2201/002

    Abstract: An apparatus and method for de-bouncing keypad inputs is disclosed including interrupting a processor upon detecting a key press, reading input signals from the key pad to determine an initial port value and starting a timer. A keypad interrupt is disabled and processing resumes until expiration of the timer. The timer interrupts the processor and the input signals are read a second time and combined with the initial port value to determine a key identifier. The timer is started again and processing resumes. Upon expiration of the timer the processor checks for key release. If release is not detected, the timer is again started. If release occurs, the timer is disabled and the keypad interrupt is enabled.

    Abstract translation: 公开了一种用于消除键盘输入的装置和方法,包括在检测到按键时中断处理器,从键盘读取输入信号以确定初始端口值并启动定时器。 键盘中断被禁用,处理恢复到定时器到期。 定时器中断处理器,并且第二次读取输入信号并与初始端口值组合以确定密钥标识符。 定时器再次启动,处理恢复。 定时器到期后,处理器检查密钥释放。 如果没有检测到释放,则定时器再次启动。 如果发生释放,定时器被禁止,并且键盘中断被使能。

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