| 摘要 |
本案关于一种挡纸机构，包含：导引元件，具有轴套部、延伸臂、凸部及阻挡部，轴套部套设于取纸滚轮之轴部上；挡纸元件，具有挡纸部、插梢及受抵部，导引元件之延伸臂向上抵顶于挡纸元件之受抵部，受抵部设置于凸部与轴套部之间，挡纸部插设于容置槽中；导槽，供容置挡纸元件之插梢；当取纸滚轮朝供纸盘接近时，透过轴套部与取纸滚轮连动之导引元件会带动挡纸元件之挡纸部上升而脱离容置槽，且带动挡纸元件之插梢于导槽中移动，使受抵部由凸部与轴套部之间跨设至凸部与阻挡部之间，以使纸张通过挡纸部而传送至导纸路径中。;A stopper mechanism is disclosed.The stopper mechanism is applied to an automatic document feeder.The stopper mechanism includes a guiding component, a stopper and a guiding slot. The guiding component includes a sleeve portion, an extension arm, a convex portion and a blocking portion, wherein the sleeve portion sleeved on a shaft of the pick-up roller.The stopper includes a stopper portion, a plug and a bearing portion, wherein the extension arm of the guiding component props up the bearing portion of the stopper, the bearing portion disposed between the convex portion and the sleeve portion, and the stopper portion interposed in a receiving groove.The guiding slot is used receive the plug of the stopper.When the pick-up roller moves to a sheet supply tray, since the guiding component is connected with the pick-up roller through the sleeve portion, the guiding component drives the stopper portion of the stopperto rise and out of the receiving groove and drives the plug of the stopper to move in the guiding slot.The bearing portion disposed between the convex portion and the sleeve portion will go cross between the convex portion and theblocking portion, so that a paper will pass through the stopper portion and transmit to a paper guide path. |
