公开(公告)号：US20070278734A1

公开(公告)日：2007-12-06

申请号：US11638418

申请日：2006-12-14

Applicant: Kazuhiko Yoshida

Inventor： Kazuhiko Yoshida

IPC: B65H3/52

CPC classification number: B65H3/5261 ,  B65H2403/512 ,  B65H2403/532 ,  B65H2515/34 ,  B65H2220/02 ,  B65H2220/08

Abstract: An image forming apparatus includes: an image forming part; a sheet container that contains sheets fed to the image forming part in a stacked state; a feed roller that feeds the sheet from the sheet container; a separation member in press-contact with the feed roller that separates the sheet at a contact point formed between the feed roller and the separation member; and a press-contact force reducing unit that reduces a press contact force of the separation member to the feed roller while maintaining an approximately constant sheet separating force with the separation member.

Abstract translation: 图像形成装置包括：图像形成部; 纸张容器，其包含以堆叠状态馈送到图像形成部分的纸张; 从片材容器供给片材的进料辊; 与所述进给辊压接的分离构件，所述分离构件在所述进给辊和所述分离构件之间形成的接触点处分离所述薄片; 以及按压接触力减小单元，其将分离构件的压力接触力降低到进给辊，同时保持与分离构件大致恒定的片材分离力。

公开(公告)号：US20020096823A1

公开(公告)日：2002-07-25

申请号：US09860588

申请日：2001-05-21

Inventor： Seung-Taik Hwang ,  Jong-Sung Jung

IPC: B65H031/00

CPC classification number: B65H29/26 ,  B65H2301/4421 ,  B65H2403/421 ,  B65H2403/532 ,  B65H2403/942 ,  B65H2404/733 ,  B65H2701/1313

Abstract: A paper discharging apparatus for a printer includes: a plurality of support plates for supporting the paper and rotating in a direction parallel to a paper proceeding direction; a rotation shaft of a feed roller arranged in a direction perpendicular to the paper proceeding direction, and to which a feed roller contacting the paper is coupled; a power transfer portion having a sector gear installed on the rotation shaft so that the sector gear doe not rotate when the rotation shaft rotates in a forward direction, and the sector gear does rotate when the rotation shaft rotates in a reverse direction; a crank rod having one end connected to the sector gear, and reciprocating when the sector gear rotates; and a cam shaft connected to the crank rod and rotating in correspondence to the reciprocation of the crank rod. A cam for performing interference movement relative to the support plates, and a holder engaged with the rotation of the cam shaft and having a plurality of kickers for pushing the paper toward the support plate, are also provided. When the sector gear rotates in a forward direction, the paper is supplied or printed; when the sector gear rotates in a reverse direction, the holder is engaged with the cam shaft to perform angular movement by means of the crank rod connected to the sector gear so that an end portion of the paper is pushed. The paper is supported by the support plates, and is dropped downward and stacked. Thus, by using a power transfer portion having a simple structure, cost can be reduced and printing speed can be improved. Also, by using a crank rod and a cam shaft, discharged paper can be stably stacked without being damaged so that the paper can be stably discharged from the printer.

公开(公告)号：US4702467A

公开(公告)日：1987-10-27

申请号：US801279

申请日：1985-11-25

Applicant: Charles N. Hannon

Inventor： Charles N. Hannon

IPC: B65H3/02 ,  B65H3/06 ,  B65H3/60

CPC classification number: B65H3/02 ,  B65H3/60 ,  B65H2301/42322 ,  B65H2403/51 ,  B65H2403/532

Abstract: The feeder has a device which reciprocates across the bottom of a stack of articles so as to separate and feed the lowermost article of the stack during each feeding stroke of the device. The device has a pair of elongated members which extend in the direction of feed and are provided with friction padding along their uppermost surfaces for making firm contact with the article to be fed. Such members, working together as an integral unit, rise up into engagement with the article to slightly raise it along the engaged portions thereof above the rest of the device as the forward stroke is commenced, thereby warping the article along the leading edge thereof as such leading edge is at the same time tucked beneath a confining element at the front of the stack which is strategically spaced above the device a distance which permits the passage of only the lowermost article during each feed stroke. This has the effect of advancing only the lowermost article from the stack into a pair of high-speed nip rollers which grab the article and immediately commence withdrawing it the rest of the way out of the stack. When the nip rollers begin pulling on the article, the raised friction members respond by dropping down to their initial position below the upper surface of the feed device, which thereupon makes its return stroke in preparation for feeding the next article of the stack.

Abstract translation: 进料器具有穿过物品堆叠的底部往复运动的装置，以便在装置的每个进给冲程期间分离和进给堆叠的最下面的物品。 该装置具有沿进给方向延伸的一对细长构件，并沿其最上表面设置有摩擦衬垫，用于与要进给的制品牢固接触。 作为整体单元一起工作的这些构件随着前进行程开始而升高成与制品接合，以沿着装置的其余部分上的接合部分稍微升高，从而使制品沿其前缘翘曲 前缘同时被折叠在堆叠前部的限制元件的下方，其在装置上方策略地间隔开距离，该距离允许在每个进给冲程期间仅通过最下面的物品。 这具有将最低的物品从堆叠推进到一对抓取物品的高速夹持辊的作用，并立即开始将其剩余的方式从堆叠中取出。 当夹辊开始拉动物品时，升高的摩擦件通过下降到进料装置的上表面下方的初始位置而起作用，随后使其返回行程准备供给堆叠的下一个物品。

公开(公告)号：US4557472A

公开(公告)日：1985-12-10

申请号：US431556

申请日：1982-09-30

Applicant: Charles N. Hannon

Inventor： Charles N. Hannon

IPC: B65H3/02 ,  B65H3/06 ,  B65H3/60

CPC classification number: B65H3/02 ,  B65H3/60 ,  B65H2301/42322 ,  B65H2403/51 ,  B65H2403/532

Abstract: Friction members, working together as an integral unit, rise up into engagement with the lowermost article in a stack to slightly raise it along the engaged portions thereof above the rest of the device as a forward stroke is commenced, thereby warping the article along its leading edge as such leading edge is at the same time tucked beneath a forwardly located element positioned to permit passage of only the lowermost article during each feed stroke. This combination of actions has the effect of advancing the articles seriatim from the stack into a pair of highspeed nip rollers which grab only the lowermost article and immediately complete its withdrawal. At the instant the nip rollers begin pulling on the article, the raised friction members respond by dropping down to their initial position below the upper surface of the feed device, which thereupon makes its return stroke in preparation for feeding the next article of the stack. An improved arrangement for draping the articles in order to promote pushing thereof from the rear, as well as an improved pusher arrangement for the articles, is also disclosed.

Abstract translation: 作为整体单元一起工作的摩擦构件随堆叠中的最下面的物品一起升高成与其最后部件的接合部分稍微升高，因为正向冲程开始，从而使制品沿其前端弯曲 边缘作为这样的前缘同时被折叠在位于允许在每个进给冲程期间仅允许最低物品通过的向前定位的元件的下方。 这种动作的组合具有将堆叠物品连续地推进到一对仅抓取最下部物品并立即完成其撤回的高速夹送辊的效果。 在夹辊开始拉动物品的瞬间，升高的摩擦构件通过下降到进给装置的上表面下方的初始位置而起作用，随后使其返回行程准备供给堆叠的下一个物品。 还公开了一种改进的用于悬挂物品以便促进从后方推动物品的布置，以及用于制品的改进的推动装置。

公开(公告)号：US3059920A

公开(公告)日：1962-10-23

申请号：US1161260

申请日：1960-02-29

Applicant: NORWICH MFG COMPANY INC

Inventor： ST DENNY RALPH B ,  BROWN FRANK H

IPC: B65H39/055

CPC classification number: B65H39/055 ,  B65H3/0615 ,  B65H3/443 ,  B65H5/028 ,  B65H39/042 ,  B65H39/043 ,  B65H2403/532 ,  B65H2404/311

公开(公告)号：US2793032A

公开(公告)日：1957-05-21

申请号：US39815553

申请日：1953-12-14

Applicant: DUSEN HAROLD W VAN

Inventor： DUSEN HAROLD W VAN

IPC: B65H39/055

CPC classification number: B65H39/055 ,  B65H1/02 ,  B65H3/02 ,  B65H3/443 ,  B65H2403/532 ,  B65H2403/5331 ,  B65H2403/55 ,  B65H2405/3312 ,  B65H2511/214 ,  B65H2515/34 ,  B65H2220/01 ,  B65H2220/04

公开(公告)号：US1777892A

公开(公告)日：1930-10-07

申请号：US22906927

申请日：1927-10-27

Applicant: IBM

Inventor： ROYDEN PEIRCE JOHN

CPC classification number: B65H3/24 ,  B65H5/10 ,  B65H2301/321 ,  B65H2403/532 ,  B65H2701/1914