公开(公告)号：US4313376A

公开(公告)日：1982-02-02

申请号：US129435

申请日：1980-03-11

申请人： Jack G. Swope ,  Harry C. Weiss

发明人： Jack G. Swope ,  Harry C. Weiss

IPC分类号： B41F19/06 ,  B41F1/00 ,  B41F17/00

CPC分类号： B41F19/068 ,  B41P2219/11 ,  B41P2219/20

摘要： An imprinter having a single driving device for controlling both the movement of the heated printing head and the intermittent advancing movement of the pigmented ribbon. The single driving device, which preferably comprises a reciprocal fluid pressure cylinder, causes the advancing and retracting movement of the printing head. A motion-transfer mechanism drivingly joins the printing head to the take-up reel for the pigmented ribbon. This mechanism is of the one-way type so as to effect rotation of the take-up reel, and advancement of the pigmented ribbon, only when the printing head is being retracted. This mechanism also employs a lost-motion connection therein so that the rotation of the take-up reel is delayed relative to the initial retraction of the printing head, whereby the printing head is initially moved out of engagement with the ribbon prior to the intermittent advancing thereof.

摘要翻译： 具有用于控制加热的打印头的运动和着色色带的间歇前进运动的单个驱动装置的打印机。 优选地包括往复流体压力缸的单个驱动装置引起打印头的前进和后退运动。 运动传递机构将打印头驱动地连接到用于着色色带的卷取卷轴。 该机构是单向类型，以便仅当打印头缩回时才能实现卷取卷轴的旋转和着色色带的前进。 该机构还在其中采用了迷失运动连接，使得卷取卷轴的旋转相对于打印头的初始缩回而延迟，由此打印头在间歇前进之前最初移动离开与色带的接合 其中。

公开(公告)号：US4422592A

公开(公告)日：1983-12-27

申请号：US338810

申请日：1982-01-11

申请人： Jack G. Swope ,  Harry C. Weiss

发明人： Jack G. Swope ,  Harry C. Weiss

IPC分类号： B41J33/52 ,  B65H23/06 ,  B65H26/08 ,  B65H25/28 ,  B65H25/22

CPC分类号： B41J33/52 ,  B65H23/06 ,  B65H26/08 ,  B65H2511/142 ,  B65H2511/214

摘要： A brake mechanism for controlling a ribbon spool wherein a brake member is disposed in braking relationship with the spool for retarding rotation thereof. The brake member has a brake actuator projecting therefrom. An elongated follower pivotally bears against the spool to follow any decrease in the diameter thereof. The follower has an adjustment member which creates a cammed relationship with the brake actuator for progressively moving same and decreasing the brake torque as the follower pivotally moves in response to a decrease in spool diameter. This adjustment member is positioned to impose either a zero or a minimum torque on the brake member when the spool is empty. When in this empty-spool position, the adjustment member can be initially adjusted in a direction substantially parallel to the radial direction of the brake actuator so as to not affect this zero or minimum brake torque. However, this adjustment causes the adjustment member to swing about a different arc when the follower pivots due to being engaged with the full ribbon spool, whereby the movement imposed on the brake actuator is correspondingly changed so that the maximum brake torque for any selected spool diameter can be adjusted without affecting the zero or minimum torque for the empty-spool condition.

摘要翻译： 一种用于控制色带卷轴的制动机构，其中制动部件与卷轴制动关系，以阻止其旋转。 制动构件具有从其突出的制动致动器。 一个细长的随动件可枢转地支撑在线轴上，以跟随其直径的任何减小。 跟随器具有调节构件，其与制动致动器产生凸轮关系，以逐渐移动相同的作用，并随着从动件响应于卷轴直径的减小枢转地移动而减小制动扭矩。 当阀芯为空时，该调节构件定位成在制动构件上施加零或最小扭矩。 当处于该空卷轴位置时，可以在基本上平行于制动致动器的径向方向上调整调节构件，从而不影响该零或最小制动转矩。 然而，这种调节使得当随动件由于与全带状卷轴接合而枢转时，调节构件绕不同的电弧摆动，由此施加在制动致动器上的运动相应地改变，使得对于任何所选择的卷轴直径的最大制动转矩 可以在不影响空阀芯条件的零或最小扭矩的情况下进行调整。