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1. 发明授权

US4018999A Keyboard switch assembly having adhesive position retainer element 失效
标题翻译：具有粘合位置保持元件的键盘开关组件
公开(公告)号：US4018999A
公开(公告)日：1977-04-19
申请号：US505389
申请日：1974-09-12
申请人： Max S. Robinson , Thomas J. Studebaker
发明人： Max S. Robinson , Thomas J. Studebaker
IPC分类号： H01H13/70 , H01H1/34 , H01H13/06
CPC分类号： H01H13/7006 , H01H2205/026 , H01H2205/03
摘要： A keyswitch assembly including a circuit board having a plurality of circuits, each circuit terminating with a pair of first and second contacts, and a curved, resilient contact plate associated with each pair of contacts having at least a portion of its periphery in communication with one of the pair of contacts, the plate being selectively deflectable so that it communicates with the other contact to close the respective circuit. The contact plates are fixed in position by a retaining element comprising a film formed by a layer of thermoplastic material bonded to a flexible sheet of insulative material, the thermoplastic material being bonded to the resilient plates and circuit board thereby maintaining the former in correct position relative to the latter. The method of manufacturing the assembly includes precisely locating the plates over the pairs of contacts, placing the retaining element over the circuit board and applying pressure to the assembly at an elevated temperature for a predetermined time.
摘要翻译：一种键开关组件，包括具有多个电路的电路板，每个电路终止于一对第一和第二触点，以及与每对触点相关联的弯曲的弹性接触板，其具有至少一部分周边与一个的一对触点，该板可选择性地偏转，使得它与另一个触点相通以闭合相应的电路。接触板通过保持元件固定在适当的位置，该保持元件包括由热塑性材料层形成的膜，该热塑性材料层粘合到柔性绝缘材料片上，该热塑性材料被结合到弹性板和电路板上，从而将前者保持在相对正确的位置到后者。制造组件的方法包括将板精确地定位在成对的触点上，将保持元件放置在电路板上，并在升高的温度下将组件施加压力达预定时间。

2. 发明授权

US4083100A Method of manufacturing a keyboard assembly 失效
标题翻译：制造键盘组件的方法
公开(公告)号：US4083100A
公开(公告)日：1978-04-11
申请号：US761925
申请日：1977-01-24
申请人： John E. Flint , Stephen E. Dudek
发明人： John E. Flint , Stephen E. Dudek
IPC分类号： H01H11/00 , H01H13/70
CPC分类号： H01H11/00 , H01H13/7006 , H01H2239/006 , Y10T29/49105 , Y10T29/4978 , Y10T29/49895
摘要： An improved method is disclosed for manufacturing a keyswitch assembly which includes a plurality of switches in a predefined arrangement on the face of an insulative circuit board and which also has a protective, insulative coating over the switches and board face. Each of the switches includes a pair of spaced contacts on the board face and a resilient, deformable, electrically conductive actuating element which can be selectively deformed to provide an electrical circuit between the two contacts. The method is performed with the aid of a planar template having a plurality of apertures positioned in a predefined arrangement corresponding to the arrangement of the switches on the circuit board. As an initial step, an insulative sheet, eventually forming the coating, is placed on a flat surface and the template is placed on top of the sheet so that the sheet is sandwiched between the template and the surface. Next, a plurality of actuating elements are secured to the sheet by being inserted, in an inverted position, into different template apertures and bonded to the sheet at the point of contact therewith. This forms an assembly sheet comprising the original insulative sheet with the actuating members secured thereto, which assembly sheet is conveniently handled as a unit for accurate alignment and bonding to the circuit board. High accuracy is achieved in aligning the assembly sheet with respect to the circuit board by using alignment guides which are constructed to mount in registry over the contacts of switches in the four corners of the circuit board so as to permit aligning of the actuating elements in the four corners of the assembly sheet with their corresponding switch contacts. After such alignment, the assembly sheet is spot-bonded to the circuit board in each of its corners and, thus restrained, is quickly and accurately bonded to the circuit board on a conventional press. SUThis invention relates generally to switch assemblies for sensing the activation of keys in a keyboard system and, more particularly, concerns a method for manufacturing such a keyswitch assembly which includes a plurality of switches in a predefined arrangement on the face of an insulative circuit board and which also has a protective, insulative coating over the switches and board face.Keyswitch assemblies for sensing the activation of keys in a keyboard system and for producing signals representative of these key activations are well-known in the prior art. A particularly efficient keyswitch assembly is disclosed in U.S. pat. application Ser. No. 505,389, filed by M. S. Robinson et al. on Sept. 12, 1974, now U.S. Pat. No. 4,018,999. In accordance with Robinson et al, a keyswitch assembly having a plurality of switches in a predefined arrangement is formed on one face of an insulative circuit board and a protective insulative coating is provided over the entire circuit board to retain the switches on the board, as well as to seal them. Each switch has an annular outer contact and a concentric inner contact, and includes a resiliently deformable, dome-shaped actuating element. The actuating element has an annular marginal edge which is shaped to coincide with the outer contact and is positioned on top of the outer contact to protrude thereabove. In operation, a downward force is applied to the upwardly protruding portion of the actuating element so that the element is deformed downwardly and touches the inner contact, thereby completing an electric circuit between the inner and outer contacts.As taught in U.S. Pat. No. 3,653,038, issued to J. R. Webb et al. on Mar. 28, 1972, keyswitches of the type described may also be formed with a thin film of dielectric over the inner contact. With keyswitches of this type,, when the actuating member is deformed as explained above, no direct conductive path is formed between the inner and outer contacts. Rather, deforming the actuating member greatly increases the capacitance between the contacts, so that a current surge, which is detectable by known means, is produced in a coupled associated circuit.In manufacturing keyswitch assemblies of the type described above, the accurate positioning of the actuating members with respect to the outer contacts has proved to be an ever-present, difficult and time-consuming problem. Moreover, existing solutions to this problem have proven too inaccurate or have required unnecessarily complex and expensive equipment. For example, Robinsion et al suggested that the actuating members be initially oriented with respect to the circuit board by means of an appropriate template. Before the protective sheet could be secured over the circuit board, however, the template had to be removed. As a result, the actuating members had to be retained in place independently of the template, once they were positioned with respect to the circuit board. This required that the actuating members be assembled to the circuit board on a specially designed transfer base, which was constructed to receive the circuit board and to retain the domes with respect thereto by means of an externally applied vacuum or by means of magnet members. The transfer base not only constituted an additional complication and expense in the assembly process, but also led to difficulties in accurate alignment, because the transfer base, the circuit board and the template all had to be aligned accurately. Furthermore, when the template was removed, the actuating members were in an exposed position above the circuit board and although restrained with respect to the circuit board, could be damaged or accidentally moved out of position during assembly. Also, the insulative sheet was placed on top of the circuit board and actuating members prior to being secured thereto and, in being moved about, could accidentally displace one or more actuating members. In addition, the sheet was supported only on the tops of the actuating members and was not held flat immediately prior to being secured to the board. Thus, creases or similar imperfections in the sheet material near the perimeter of an actuating member might not be secured to the board and would permit some movement of the actuating member. This could result in the actuating member moving with respect to the circuit board during operation, so that, even with accurate initial positioning, the actuating member might move out of postion during use. The foregoing and other limitations on positioning accuracy, convenience and reliability were significant disadvantages inherent in prior art methods of constructing keyswitch assemblies of the type described.Broadly, it is an object of this invention to provide a method of manufacturing keyswitch assemblies which overcomes the disadvantages of prior art manufacturing methods. Specifically, it is within the contemplation of the present invention to provide an improved method for manufacturing keyswitch assemblies which include switches of both the contact and capacitive type.It is another object of this invention to provide a method for manufacturing keyswitch assemblies of the type described, which method is more reliable than existing manufacturing methods and provide accurate alignment between the contacts and actuating member of each of the switches in a keyswitch assembly.It is yet another object of this invention to provide a method for manufacturing keyswitch assemblies of the type described wherein the actuating members are retained against displacement during adhesion of the insulative sheet to the circuit board, which method does not required the use of a transfer base of other auxiliary means to retain the actuating members.It is a further object of this invention to assemble keyswitch assemblies of the type described in a manner which will assure that the actuating members are retained in their predefined relative positions while being protected against accidental damage or injury.It is yet another object of this invention to assemble keyswitch assemblies of the type described in such a manner that creases and similar imperfections in the sheet of insulative material will not affect the accuracy of aligment between the actuating member and contacts of the switches.It is also an object of this invention to provide a method for manufacturing keyswitch assemblies of the type described, which method is accurate, convenient and reliable in use, yet can be performed without specialized, expensive equipment and by workers having a minimum level of skill.In accordance with an illustrative embodiment demonstrating objects and features of the present invention, there is provided an improved method for manufacturing keyswitch assemblies of the type described. The method is performed with the aid of a planar template having a plurality of apertures positioned in a predefined arrangement corresponding to the arrangement of the outer switch contacts on the circuit board. As an initial step, the insulative sheet is placed on a flat surface and the template is placed on top of the sheet so that the sheet is sandwiched between the template and the surface. Next, a plurality of actuating members are secured to the sheet by being inserted, in an inverted position, into the template apertures and bonded to the sheet at the point of contact therewith. This forms an assembly sheet comprising the original insulative sheet with the actuating members secured thereto, which assembly sheet is conveniently handled as a unit for accurate alignment and bonding to the circuit board. High accuracy is achieved in aligning the assembly sheet with respect to the circuit board by using alignment guides which are constructed to mount in registry over the contacts of switches in the four corners of the circuit board. Each alignment guide includes a circular aperture dimensioned to be slightly larger thn the periphery of an actuating member. When the alignment guide is mounted in position on the board, a circle may be scribed on the outer contacts of the switches in the four corners of the board. Prior to adhering the assembly sheet to the circuit board, the actuating members in the four corners of the assembly sheet are accurately aligned within the scribed circles on the four corner contacts of the circuit board and the assembly sheet is spot-bonded to the circuit board in each of its corners. With the assembly sheet thus restrained, it is quickly and accurately bonded to the circuit board.It is a feature of this invention that the actuating members are bonded to the insulative sheet through the apertures of a template, constructed as described, while the insulative sheet is sandwiched between the template and the flat surface, so that creases and similar imperfections in the surface of the insulative sheet are smoothed out and do not affect the accuracy of the relative positioning of the actuating members.It is another feature of this invention that, as an intermediate step, there is produced an assembly sheet comprising said insulative sheet with said actuating member secured thereto in a precise, predefined arrangement, which assembly sheet is conveniently handled as a unit for alignment with and bonding to said circiut board.It is yet another feature of this invention that alignment guides, constructed to mount on the circuit board in registry with certain predefined contact members, are utilized to aid in orienting the assembly sheet with respect to the circuit board.
摘要翻译：公开了用于制造键开关组件的改进方法，其包括在绝缘电路板的表面上的预定布置的多个开关，并且在开关和板面上也具有保护性的绝缘涂层。每个开关包括在板表面上的一对隔开的触点和可弹性的，可变形的导电致动元件，该致动元件可被选择性地变形以在两个触点之间提供电路。该方法借助于具有多个孔的平面模板来执行，该多个孔以对应于电路板上的开关的布置的预定布置来定位。作为初始步骤，最终形成涂层的绝缘片被放置在平坦表面上，并且将模板放置在片材的顶部上，使得片材夹在模板和表面之间。接下来，多个致动元件通过在倒置的位置插入到不同的模板孔中并在与其接触的点接合到片材上而固定到片材上。这形成了包括原始绝缘片的组装片，其中致动构件被固定到其上，该组装片方便地作为a处理

3. 发明授权

US4018155A Ballistic print hammer assembly 失效
标题翻译：弹道打印锤组件
公开(公告)号：US4018155A
公开(公告)日：1977-04-19
申请号：US583010
申请日：1975-06-02
申请人： N. Allen Cargill
发明人： N. Allen Cargill
IPC分类号： B41J9/127 , B41J9/38 , B41J9/30
CPC分类号： B41J9/38 , B41J9/127
摘要： A ballistic print hammer assembly which includes a pivotally mounted print hammer driven by an electromagnetic actuator, characterized by low cost and ease of manufacture, high velocity and short dwell time. A rigid pivot upon which the hammer is mounted is simply secured to one side of a frame member. One end of the hammer is disposed in a slot of the armature of the electromagnetic actuator. The stator of the actuator is arranged to be inserted (by means of screw threads) from the other side of the frame member through an aperture so that the armature fits within the actuator stator cavity. An impression control spring is further disposed in a central cavity of the armature to continually produce a biasing force on the hammer which in the free-flight condition of the hammer is a decelerating force.
摘要翻译：一种弹道打印锤组件，其包括由电磁致动器驱动的可枢转地安装的打印锤，其特征在于低成本和易于制造，高速度和短停留时间。安装锤的刚性枢轴简单地固定在框架构件的一侧。锤的一端设置在电磁致动器的电枢的槽中。致动器的定子被布置成通过孔从框架构件的另一侧（通过螺纹）插入，使得电枢配合在致动器定子腔内。压电控制弹簧还设置在电枢的中心腔中，以在锤的自由飞行状态下持续地产生在锤上的偏置力，该偏压力是减速力。

4. 发明授权

US3977620A Reversible drive for flexible web 失效
标题翻译：柔性网的可逆驱动
公开(公告)号：US3977620A
公开(公告)日：1976-08-31
申请号：US617472
申请日：1975-09-29
申请人： Ronald F. Deuel
发明人： Ronald F. Deuel
IPC分类号： B41J17/14 , B41J33/34 , F16H3/40 , B65H17/02
CPC分类号： F16H3/40 , B41J17/14 , B41J33/34
摘要： A reversible drive apparatus for a flexible web, especially adapted to a reversible ribbon drive for a printing machine. A driving spur gear is arranged to be shifted between a pair of spur gears, each associated with a ribbon spool. The shifting is accomplished by mere reversal of direction of a drive motor which has a lead screw type shaft upon which the driving spur gear is mounted with mating screw threads. This allows the driving spur gear to travel laterally along the lead screw shaft between the pair of spur gears whenever the motor reverses direction.
摘要翻译：用于柔性幅材的可逆驱动装置，特别适用于印刷机的可逆带驱动器。驱动正齿轮布置成在一对正齿轮之间移动，每个正齿轮与带状卷轴相关联。换档是通过简单地反转驱动电动机的方向来实现的，该驱动电动机具有丝杠型轴，驱动正齿轮以匹配的螺纹安装在该螺杆型轴上。这允许驱动正齿轮在马达反转方向时沿着导螺杆轴在一对正齿轮之间横向移动。

5. 发明授权

US4053937A Calibration timing bands 失效
标题翻译：校准时序频带
公开(公告)号：US4053937A
公开(公告)日：1977-10-11
申请号：US656505
申请日：1976-02-09
申请人： William Hugh Hersey, Jr.
发明人： William Hugh Hersey, Jr.
IPC分类号： G11B5/55 , G11B21/10 , G04F8/00
CPC分类号： G11B5/5543
摘要： A method of preparing an alignment disc pak in which first and second signals of different frequencies f1 and f2 are recorded in eccentric bands at a selected track on the disc such that the playback signal will consist of three components having frequencies f1, f2 and (f1-f2). One frame of the playback signal is first displayed with one beam of a multibeam oscilloscope on the display surface thereof such that the (f1-f2) signal component appears as a "cat's eye" pattern. The delay time base time marker is then employed to measure the time base of one of the cat's time marker is further employed to produce first and second narrow timing bands on either side of the intermediate crossover of the cat's eye pattern by erasing the recorded signals on the disc only in those radial sectors of the disc corresponding in position to two positons of the time marker on the scope as defined by the formula (Gc - Sp/2 .+-. 0.2.
摘要翻译：一种准备对准盘片的方法，其中不同频率f1和f2的第一和第二信号被记录在盘上所选轨道上的偏心带中，使得重放信号将包括具有频率f1，f2和（f1 -f2）。重放信号的一帧首先在其显示表面上用多光束示波器的一束显示，使得（f1-f2）信号分量出现为“猫眼”图案。然后使用延迟时基时间标记来测量猫的时间标记之一的时基，进一步用于通过将所记录的信号擦除来产生猫眼图案的中间交叉的任一侧上的第一和第二窄定时带在盘的那些径向扇区中的盘对应于由公式（Gc-Sp / 2 +/- 0.2）定义的范围上的时间标记的两个位置。

6. 发明授权

US4033030A Method of manufacturing keyswitch assemblies 失效
标题翻译：钥匙开关组件的制造方法
公开(公告)号：US4033030A
公开(公告)日：1977-07-05
申请号：US666732
申请日：1976-03-15
申请人： Max S. Robinson , Thomas J. Studebaker
发明人： Max S. Robinson , Thomas J. Studebaker
IPC分类号： H01H13/70 , H01H11/00
CPC分类号： H01H13/7006 , H01H2205/026 , H01H2205/03 , Y10T29/49105
摘要： A keyswitch assembly including a circuit board having a plurality of circuits, each circuit terminating with a pair of first and second contacts, and a curved, resilient contact plate associated with each pair of contacts having at least a portion of its periphery in communication with one of the pair of contacts, the plate being selectively deflectable so that it communicates with the other contact to close the respective circuit. The contact plates are fixed in position by a retaining element comprising a film formed by a layer of thermoplastic material bonded to a flexible sheet of insulative material, the thermoplastic material being bonded to the resilient plates and circuit board thereby maintaining the former in correct position relative to the latter. The method of manufacturing the assembly includes precisely locating the plates over the pairs of contacts, placing the retaining element over the circuit board an applying pressure to the assembly at an elevated temperature for a predetermined time.
摘要翻译：一种键开关组件，包括具有多个电路的电路板，每个电路终止于一对第一和第二触点，以及与每对触点相关联的弯曲的弹性接触板，其具有至少一部分周边与一个的一对触点，该板可选择性地偏转，使得它与另一个触点相通以闭合相应的电路。接触板通过保持元件固定在适当的位置，该保持元件包括由热塑性材料层形成的膜，该热塑性材料层粘合到柔性绝缘材料片上，该热塑性材料被结合到弹性板和电路板上，从而将前者保持在相对正确的位置到后者。制造组件的方法包括将板精确地定位在成对的触点上，将保持元件放置在电路板上，在升高的温度下将预定时间施加到组件上。

7. 发明授权

US3999747A Record card feeding apparatus 失效
标题翻译：记录卡进纸装置
公开(公告)号：US3999747A
公开(公告)日：1976-12-28
申请号：US489287
申请日：1974-07-17
申请人： Frank A. Digilio , Peter F. Mathews , James H. Roberts , Donald R. Morreall , Douglas J. Reittinger
发明人： Frank A. Digilio , Peter F. Mathews , James H. Roberts , Donald R. Morreall , Douglas J. Reittinger
IPC分类号： B65H3/24 , G06K13/103 , B65H3/46
CPC分类号： G06K13/103 , Y10T74/18184
摘要： Apparatus for feeding data processing record cards seriatim from the bottom of a stack to a data sensing station or the like including a pair of oscillating picker members for displacing a record card from the bottom of the stack, and a pair of sector rollers for intermittently gripping the displaced card and moving it at right angles to the direction of displacement to the nip of a set of feed rollers. Both the picker members and sector rollers are driven from a common source, the picker members being harmonically driven through a unique coupling device including a pair of flexural elements mounted at right angles to each other to give a universal action.
摘要翻译：用于将数据处理记录卡从堆叠底部向数据传感站等馈送的数据处理记录卡的装置，包括一对用于从记录卡的底部移动记录卡的振荡拾取部件，以及用于间歇地夹紧的一对扇形辊移位的卡片，并将其与一组进给辊的辊隙直线移动到位移方向。拾取器构件和扇形辊都是从共同的源驱动的，拾取器构件通过独特的耦合装置协调地驱动，该耦合装置包括彼此成直角安装的一对弯曲元件，以产生通用作用。

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