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1. 发明授权

US5113759A Latch mechanism for small-size printer 失效
标题翻译：小型打印机的锁定机构
公开(公告)号：US5113759A
公开(公告)日：1992-05-19
申请号：US518807
申请日：1990-05-04
申请人： Shohachi Nihira
发明人： Shohachi Nihira
IPC分类号： B41J7/34 , B41J7/48 , B41J9/26
CPC分类号： B41J9/26 , B41J7/34 , B41J7/48
摘要： A latch mechanism for a small-size printer capable of performing a printing operation with a desired type on a rotatable type drum being held at a print position by impacting a hammer towards the type drum across a recording paper loaded therebetween. The latch mechanism comprises a group of type drums composed of type drums of three digits each comprising a lock groove wheel for fixing one type drum selected among three drums at a print position by one type selection operation; a group of lock levers movable between its initial non-print position and its print position, which is disposed so as to correspond to each of the type drums, and constantly biased by a lock lever spring toward the lock groove wheel to lock the type drum in a print position; and a group of lock lever holding means capable of actuating the lock lever by being attracted by an electromagnet. Thus, since the lock groove wheel of each type drum has a predetermined alignment, it is possible to select on desired type drum from a plurality of type drums by one type selection operation. By a repetition of this type selection operation, the types of plural digits can be selected by a single electromagnet.
摘要翻译：一种用于小尺寸打印机的闩锁机构，其能够通过在其间装载的记录纸上冲击敲击滚筒朝向型滚筒而在可旋转滚筒上进行所需类型的打印操作。闩锁机构包括一组由三位数的鼓构成的鼓，每一组包括用于通过一种类型选择操作在打印位置上将选自三个鼓中的一个滚筒固定的锁定槽轮; 一组锁定杆，其可在其初始非打印位置与其打印位置之间移动，其设置成对应于每个类型的滚筒，并且通过锁定杆弹簧不断地朝向锁定槽轮偏置以锁定型式滚筒在打印位置; 以及能够通过被电磁体吸引来驱动锁定杆的一组锁定杆保持装置。因此，由于每个类型的滚筒的锁定槽轮具有预定的对准，所以可以通过一种类型选择操作从多个类型的滚筒中选择所需类型的滚筒。通过重复这种类型选择操作，可以通过单个电磁体选择多个数字的类型。

2. 发明授权

US4663982A Governor device for printer 失效
标题翻译：打印机调速器
公开(公告)号：US4663982A
公开(公告)日：1987-05-12
申请号：US734029
申请日：1985-05-14
申请人： Shohachi Nihira
发明人： Shohachi Nihira
IPC分类号： B41F13/04 , B41F21/00 , B41J19/02 , B41J23/02 , F16H35/00 , F16F15/10 , B41J19/76
CPC分类号： B41F21/00 , B41F13/04 , B41J19/02 , B41J23/025 , Y10T74/2128
摘要： In a governor device for a printer including a driving wheel rotating for a predetermined amount by means of urging force by a urging spring to feed paper and engaging with a stopper to stop at this position and a governor gear train consisting of a speed-up gear engaged with the driving wheel and a fly wheel to perform the governing action. The governor device for a printer further includes a wind-up gear engaging with the driving wheel and a friction slip device attached to the fly wheel in the governor gear train to absorb the bounce when the driving wheel stops.
摘要翻译：在用于打印机的调速器装置中，该调速器装置包括通过推动弹簧的推动力旋转预定量的驱动轮以供给纸张并与止动器接合以停止在该位置，以及由加速齿轮组成的调速器齿轮系与驱动轮和飞轮接合以执行控制动作。用于打印机的调速器装置还包括与驱动轮接合的卷取齿轮和附接到调速器齿轮系中的飞轮的摩擦滑动装置，以在驱动轮停止时吸收弹跳。

3. 发明授权

US4817522A Printer device 失效
标题翻译：打印机设备
公开(公告)号：US4817522A
公开(公告)日：1989-04-04
申请号：US127576
申请日：1987-12-02
申请人： Shohachi Nihira
发明人： Shohachi Nihira
IPC分类号： B41J9/14 , B41J9/18 , B41J9/32 , B41J9/38
CPC分类号： B41J9/18
摘要： A printer device having a hammer mechanism for printingly impacting a type drum by means of hammer springs. Hammers are rotatably controlled to retracted positions where the hammers are not brought into contact with a reset cam in each printing cycle, so that unnecessary contact between the hammers and the reset cam can be eliminated, frictional loss and noise can be reduced. The hammers are temporarily reset to first retracted positions upon completion of printing, and thereafter, turned to the aforesaid second retracted positions.The release of locking of the hammers is effected by feeding a printing command to electromagnetic means, whereby an armature of the electromagnetic means moves hammer holding members to thereby release locking of the hammers.A predetermined pre-stroke is secured between the hammer holding members and the armature at the time of non-excitation of the electromagnetic means, whereby kinetic energy is accumulated while the armature moves within the aforesaid pre-stroke due to the excitation of the electromagnetic means, so that the hammer holding members can be reliably transferred.
摘要翻译：一种具有锤击机构的打印机装置，用于通过锤簧弹性地冲击型鼓。锤子可旋转地控制到缩回位置，在每个打印循环中锤子不与复位凸轮接触，从而可以消除锤和复位凸轮之间的不必要的接触，可以降低摩擦损失和噪音。在完成打印时，锤被暂时复位到第一缩回位置，然后转到上述第二缩回位置。通过向电磁装置馈送打印命令来实现锤的释放，由此电磁装置的电枢移动锤保持构件，从而释放锤的锁定。在电磁装置的非励磁时，在锤保持构件和电枢之间确保预定的行程，由此由于电磁装置的激励，电枢在前述行程中移动时动能被累积，使得锤保持构件能够可靠地传递。

4. 发明授权

US4297944A Print hammer driving means for impact printers 失效
标题翻译：冲击打印机打印锤驱动装置
公开(公告)号：US4297944A
公开(公告)日：1981-11-03
申请号：US66775
申请日：1979-08-15
申请人： Shohachi Nihira
发明人： Shohachi Nihira
IPC分类号： B41J9/24 , B41J9/18 , B41J9/30 , B41J9/32 , B41J9/36
CPC分类号： B41J9/18 , B41J9/30
摘要： A print hammer driving means for impact printers comprising a type drum having a plurality of circumferentially arranged type characters, a plurality of print hammers and a hammer spring for moving each print hammer to the type drum for printing, a wind-up lever engaged with the print hammer for winding the hammer spring, a snatch roll for actuating the wind-up lever and an electromagnet adapted to engage the wind-up lever with the snatch roll. The wind-up lever and the snatch roll are so arranged as to engage with each other during the wind-up period in one printing cycle and to release the print hammer after the wind-up period for printing.
摘要翻译：一种用于冲击式打印机的打印锤驱动装置，包括具有多个周向布置的字符的型式滚筒，多个打印锤和用于将每个打印锤移动到用于打印的型滚筒的锤弹簧，用于卷绕锤簧的打印锤，用于致动卷绕杆的抓取辊和适于使卷绕杆与抓取辊接合的电磁体。卷取杆和抓取辊被布置成在一个打印周期中的卷绕期间彼此接合，并且在打印的卷起周期之后释放打印锤。

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