公开(公告)号：US4045636A

公开(公告)日：1977-08-30

申请号：US653226

申请日：1976-01-28

申请人： Alan C. Yoder ,  John E. Weber

发明人： Alan C. Yoder ,  John E. Weber

IPC分类号： H01H13/70 ,  H05K3/46 ,  H01H9/00 ,  H05K1/00

CPC分类号： H01H13/7006 ,  H05K3/4685 ,  Y10S428/901

摘要： A printed wiring board for a keyboard switch assembly for electronic apparatus, such as electronic calculators, comprising a self-supporting insulative board having a plurality of elongated connectors on one surface thereof, at least some of the conductors having terminal portions for cooperating with switch elements. A layer of insulating material covers the one surface of the board and the conductors excluding the terminal portions. Each of the terminal portions has a coating of conductive ink thereon and a jumper element also formed of conductive ink is coated on the insulating layer crossing at least one of the conductors embedded therein and joining at least two of the terminal portion coatings. The conductive ink is preferably a noble-metal filled resin compound, such as silver epoxy, screen printed onto the insulating layer and terminal portions.

公开(公告)号：US3941964A

公开(公告)日：1976-03-02

申请号：US530744

申请日：1974-12-09

申请人： Alan C. Yoder

发明人： Alan C. Yoder

IPC分类号： G06F3/02 ,  H01H13/12 ,  H01H13/52 ,  H01H13/70 ,  H01H13/702 ,  H01H3/12

CPC分类号： H01H13/7006

摘要： A push-button type switch device for use in generating binary coded signals. An insulative board is provided having flat opposite surfaces. An overcenter, snap-acting diaphragm switch element is provided movable between a first inactive position and a second overcenter operative position in response to application of a predetermined operating force thereon, as by depression of a push button. The diaphragm element has a centrally disposed common contact area and a plurality of radially spaced leg members extending outwardly therefrom. The leg members have outer ends which respectively engage first terminal pads on one surface of the board thereby normally supporting the diaphragm element thereon in its first position. A common terminal is provided on the one side of the board and has an external conductor connected thereto, the common terminal being in registry with the common contact area of the diaphragm element and spaced therefrom in the first position. The common contact area engages the common terminal in the second position of the diaphragm element. The leg members have portions thereon inwardly from the outer ends which are respectively in registry with and spaced from other terminal pads on the one surface of the board in the first position of the diaphragm element. At least one preselected terminal pad has an external conductor connected thereto. The diaphragm element is proportioned and arranged so that the leg member portions engage their respective other terminal pads in a third position of the diaphragm element which is intermediate the first and second positions and prior to engagement of the common contact area with the common terminal.

摘要翻译： 一种用于产生二进制编码信号的按钮式开关装置。 提供具有平坦相对表面的绝缘板。 响应于通过按压按钮而在其上施加预定的操作力，设置了可以在第一非活动位置和第二过度中心操作位置之间移动的过中心，快动式隔膜开关元件。 隔膜元件具有中心设置的公共接触区域和从其向外延伸的多个径向隔开的腿构件。 腿部件具有分别接合在板的一个表面上的第一端子焊盘的外端，从而通常在其第一位置支撑隔膜元件。 公共端子设置在板的一侧，并具有连接到其上的外部导体，公共端子与隔膜元件的公共接触区域对准并且在第一位置与其隔开。 公共接触区域在隔膜元件的第二位置处接合公共端子。 腿部构件在外侧端部具有向内侧分别与隔膜元件的第一位置的板的一个表面上的其它端子垫对准并间隔开的部分。 至少一个预选端子焊盘具有连接到其上的外部导体。 隔膜元件成比例且布置成使得腿构件部分在隔膜元件的位于第一位置和第二位置之间并且在公共接触区域与公共端子接合之间的第三位置处接合其相应的另一端子焊盘。

公开(公告)号：USRE30923E

公开(公告)日：1982-05-04

申请号：US93686

申请日：1979-11-13

申请人： Gilbert H. Durkee ,  Per G. Wareberg ,  Alan C. Yoder

发明人： Gilbert H. Durkee ,  Per G. Wareberg ,  Alan C. Yoder

IPC分类号： H01H13/70 ,  H01H13/785

CPC分类号： H01H13/785 ,  H01H13/7006 ,  H01H2201/026 ,  H01H2203/04 ,  H01H2203/042 ,  H01H2205/024 ,  H01H2209/032 ,  H01H2227/026 ,  H01H2229/014 ,  H01H2229/016 ,  H01H2229/026 ,  H01H2231/002

摘要： A keyboard switch assembly including a printed circuit board having four switch terminals on one side of the board, three of the terminals being arranged in a triangle and the fourth disposed within the triangle. Conductors on the one side of the board are respectively joined to the interior terminal and at least one of the three terminals. A conductive, generally triangular, snap-acting dome switch member is provided having arcuate apices, projections being respectively formed from the apices and respectively engaging the three terminals thereby spacing the periphery of the switch element from the one surface of the printed circuit board and the conductors thereon, at least the conductor connected to the interior terminal extending under the dome. The switch element has a fourth projection formed from the interior of the dome adjacent the center thereof which is in registry with the interior terminal and engages that terminal when the dome is deflected thereby completing an electrical circuit between the three terminals and the interior terminal. A layer of insulating material covers the conductors exclusive of the terminals. A sheet of insulating material covers the insulating layer and has an opening therein which receives and locates the switch member. Another sheet of insulating material covers the first sheet and the switch member. A plate covers the second insulating sheet and has an opening therein which receives a push button in registry with the switch element, depression of the push button actuating the dome of the switch member to a non-overcenter, deflected position in which the interior projection on the dome engages the interior switch terminal.

公开(公告)号：USRE29440E

公开(公告)日：1977-10-11

申请号：US665325

申请日：1976-03-09

申请人： Gilbert H. Durkee ,  Per G. Wareberg ,  Alan C. Yoder

发明人： Gilbert H. Durkee ,  Per G. Wareberg ,  Alan C. Yoder

IPC分类号： H01H13/70 ,  H01H13/785

CPC分类号： H01H13/785 ,  H01H13/7006 ,  H01H2201/026 ,  H01H2203/04 ,  H01H2203/042 ,  H01H2205/024 ,  H01H2209/032 ,  H01H2227/026 ,  H01H2229/014 ,  H01H2229/016 ,  H01H2229/026 ,  H01H2231/002

摘要： A keyboard switch assembly including a printed circuit board having four switch terminals on one side of the board, three of the terminals being arranged in a triangle and the fourth disposed within the triangle. Conductors on the one side of the board are respectively joined to the interior terminal and at least one of the three terminals. A conductive, generally triangular, snap-acting dome switch member is provided having arcuate apices, projections being respectively formed from the apices and respectively engaging the three terminals thereby spacing the periphery of the switch element from the one surface of the printed circuit board and the conductors thereon, at least the conductor connected to the interior terminal extending under the dome. The switch element has a fourth projection formed from the interior of the dome adjacent the center thereof which is in registry with the interior terminal and engages that terminal when the dome is deflected thereby completing an electrical circuit between the three terminals and the interior terminal. A layer of insulating material covers the conductors exclusive of the terminals. A sheet of insulating material covers the insulating layer and has an opening therein which receives and locates the switch member. Another sheet of insulating material covers the first sheet and the switch member. A plate covers the second insulating sheet and has an opening therein which receives a push button in registry with the switch element, depression of the push button actuating the dome of the switch member to a non-overcenter, deflected position in which the interior projection on the dome engages the interior switch terminal.