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公开(公告)号：US4272205A
公开(公告)日：1981-06-09
申请号：US945953
申请日：1978-09-26
申请人： John J. Bisczat , Charles D. Bleau
发明人： John J. Bisczat , Charles D. Bleau
摘要： An indexing mechanism for a typewriter provides a signal controlled transfer to a fast paper advance rate, say for semi-automatic paper insertion, while storing the last operator-selected rate. Two cams are employed which influence, through a follower, the engagement point of a pawl of a pawl and ratchet platen drive. One cam is operator positionable to change the portion of its cam profile that is tracked by the follower and, attendantly, the paper advance rate. By arranging a signal-controlled actuator to deflect the positionable cam from operative engagement with the follower, the outer cam, which has a less prominent profile, is enabled to influence the pawl engagement point and provides high speed paper advance. Upon removal of the actuator signal the positionable cam is automatically returned to its operative position i.e., the last operator selected position.
摘要翻译： 打字机的索引机制提供信号控制转移到快速纸张提前速率，例如半自动纸张插入，同时存储最后一个操作员选择的速率。 使用两个凸轮，其通过从动件影响棘爪和棘轮压盘驱动器的棘爪的接合点。 一个凸轮是操作者可定位的，以改变其跟随器跟踪的凸轮轮廓的部分，并且伴随地提高纸张提前速率。 通过布置信号控制致动器以使定位凸轮偏转与从动件的操作接合，具有较不突出轮廓的外凸轮能够影响棘爪接合点并提供高速纸张提前。 在移除致动器信号时，可定位的凸轮自动地返回到其操作位置，即最后的操作者选择的位置。
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公开(公告)号：US4582381A
公开(公告)日：1986-04-15
申请号：US645126
申请日：1984-08-28
申请人： John J. Bisczat , Thomas M. Paulson
发明人： John J. Bisczat , Thomas M. Paulson
IPC分类号： B41J29/38 , B41J29/387 , H05K5/02 , H05K7/14 , H01R13/631
CPC分类号： H05K5/0208 , B41J29/387 , Y10S439/911
摘要： In a machine (10) such as electronic typewriters having a functional package (30) which contain electronic components (31) and (21) respectively, an interlock (13a, 40, 50) inhibits the plugging in and removal of the functional package (30) without removing the plug end (13a) of a line cord (13) from the receptacle (14) on the machine (10). In the receptacle (14) associated with the plug end (13a) of the line cord is the distal end portion (41) of a biased bellcrank (40). The functional package contains a locking bar (50) which extends horizontally of the package (30). Upon insertion of the power cord plug end (13a) into the housed receptacle (14) the bellcrank (40) is caused to rotate engaging the lock bar (50) by passing through an opening (36a) on one side (37a) of the functional package (30). Upon engagment of the locking bar (50) by the bellcrank (40), the locking bar (50) is displaced through an opening (36b) in the opposite side of the functional package (30), and the locking bar (50) moves into locking position in the adjacent aperture (47) of the machine. In this manner, movement of the functional package (30), relative to the machine (10), is inhibited by the locking action of the interlock making it impossible to unplug the functional package (30) without removing power from the machine. The remote or extended end of the bellcrank, in a like manner, by itself prevents the insertion of the functional package (30) by engagement of the lower end of the functional package (30) against the terminal or remote end portion (45) of the bellcrank (40), if insertion of the functional package (30) is attempted without removal of the plug end (13a) from the receptacle (14).
摘要翻译： 在诸如具有分别包含电子部件（31）和（21）的功能封装（30）的电子打字机的机器（10）中，互锁（13a，40,50）禁止插入和移除功能包 30）而不从电子机器（10）上的插座（14）移除线缆（13）的插头端（13a）。 在与线缆的插头端部（13a）相关联的插座（14）中，偏置的曲拐（40）的远端部分（41）。 功能包装包括一个水平延伸的包装（30）的锁定杆（50）。 在将电源线插头端（13a）插入容纳的容器（14）中之后，使曲拐（40）通过穿过锁定杆（50）的一侧（37a）上的开口（36a）旋转， 功能包（30）。 当通过曲拐（40）接合锁定杆（50）时，锁定杆（50）通过功能包装（30）的相反侧的开口（36b）移位，并且锁定杆（50）移动 进入机器的相邻孔（47）中的锁定位置。 以这种方式，功能包装（30）相对于机器（10）的移动被互锁的锁定作用所禁止，使得不可能在不从机器移除动力的情况下拔掉功能包装（30）。 曲拐的遥控或延伸端以同样的方式本身通过功能包装（30）的下端与端子或远端部分（45）的接合来防止功能包装（30）的插入， 如果尝试插入功能包装（30）而不从插座（14）移除插塞端（13a），则曲拐（40）。
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公开(公告)号：US4273456A
公开(公告)日：1981-06-16
申请号：US945922
申请日：1978-09-26
摘要： Paper insertion apparatus for indexing a typewriter to a desired first line printing position is triggered using a position detector cooperating with an operator movable paper hold-down bail. When the paper bail is moved to a withdrawn position relative to the paper feed path, the detector produces a signal that causes a logic processor to access, from a dedicated storage location, a code indicating paper advancing increments corresponding to a desired first line printing position. The processor then commands an indexing drive to advance that number of increments. In a preferred implementation, the operator can condition the typewriter to receive a new first line code into storage by means of the keyboard.By so using the presence of the paper bail in a withdrawn position to input the operator's paper insertion request, problems of automatically clearing the path for the leading paper edge are averted and the natural association of the paper bail with paper handling is exploited. And, by using the keyboard to indicate a desired first line position, special input devices such as dials or positionable selection levers are not required.
摘要翻译： 用于将打字机分拣到期望的第一行打印位置的纸张插入装置使用与操作者可移动的纸张保持架配合的位置检测器来触发。 当纸张吊环相对于供纸路径移动到缩回位置时，检测器产生一个信号，使得逻辑处理器从专用存储位置访问指示纸张的代码，该代码指示对应于期望的第一行打印位置 。 然后，处理器命令一个索引驱动器来提高这个增量。 在优选的实施方式中，操作员可以通过键盘来调节打字机接收新的第一行代码到存储器中。 通过这样使用纸张吊环处于撤销位置以输入操作者的纸张插入请求，避免了自动清除领先纸张边缘的路径的问题，并且利用纸张吊环与纸张处理的自然关联。 而且，通过使用键盘指示所需的第一行位置，不需要诸如拨号盘或可定位选择杆的特殊输入设备。
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