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1. 发明授权

US5110025A Paper feeder having a paper exhaustion detector 失效
标题翻译：具有纸张排出检测器的纸张进纸器
公开(公告)号：US5110025A
公开(公告)日：1992-05-05
申请号：US490701
申请日：1990-03-07
申请人： Sadao Unuma
发明人： Sadao Unuma
IPC分类号： B41J11/30 , B41J29/48
CPC分类号： B41J29/48 , B41J11/30
摘要： A cover is disclosed for a paper feed tractor having first and second side frames, a paper receiving plate extending perpendicularly from the second side frame and having a hole formed therein, and a paper exhaustion detector mounted to the second side frame. The paper exhaust detector of the paper feed tractor includes a microswitch with an upwardly biased plunger, and an actuator pressed upwardly by the plunger and pivotable between a first position in which it detects the presence of paper and a second position in which it detects the absence of paper. The cover of the present invention includes a plate, and elongated ribs projecting downwardly from the bottom surface of the plate on opposing sides of an elongated slot formed through the plate. The cover is characterized in that rib type elongated paper contactors project downwardly from the bottom surface of the plate at a position in which, when the plate is positioned directly above the paper receiving plate, the contactors will be adjacent the hole formed through the paper receiving plate. In this manner, when paper is fed between the paper receiving plate and the plate of the cover, the portion of the paper which is pressed upwardly by a contact portion of the actuator of the paper exhaustion detector is supported by the paper contactors so that the paper is not significantly deformed upwardly. In this manner, errors in detecting whether the paper is present or is exhausted are avoided.
摘要翻译：公开了一种用于具有第一和第二侧框架的进纸拖拉机的盖子，从第二侧框架垂直延伸并且具有形成在其中的孔的纸张接收板以及安装到第二侧框架上的排纸检测器。进纸拖拉机的排纸检测器包括具有向上偏压的柱塞的微动开关和由柱塞向上推动的致动器，并且可在第一位置和第二位置之间枢转，在第一位置中，其检测到纸张的存在和第二位置，其中它检测到不存在的纸。本发明的盖包括板，以及从板的底表面向下突出的细长肋条，其在通过该板形成的细长槽的相对侧上。盖子的特征在于，肋状细长纸接触器从板的底面向下突出的位置处，当板被直接定位在纸张接收板的正上方时，接触器将邻近通过纸张接收形成的孔盘子。以这种方式，当纸张被供给在纸张接收板和盖板之间时，由纸张排出检测器的致动器的接触部分向上按压的纸张部分被纸接触器支撑，纸不会向上显着变形。以这种方式，可以避免检测纸张是否存在或耗尽的错误。

2. 发明授权

US4925076A Paper feeder 失效
标题翻译：送纸器
公开(公告)号：US4925076A
公开(公告)日：1990-05-15
申请号：US306746
申请日：1989-02-06
申请人： Sadao Unuma
发明人： Sadao Unuma
IPC分类号： B41J11/26 , B41J11/30 , B65H20/20
CPC分类号： B65H20/20 , B41J11/30
摘要： A paper feeder for tractor-feed printers. A frame movably mounts an endless belt having a plurality of feed pins. A cover is pivotably mounted to the frame and may be pivoted between open and closed positions. In the closed position a lower surface of the cover faces the endless belt. An elastically deformable holding member extends from the lower surface of the cover to urge the paper into engagement with the feed pins.
摘要翻译：用于拖拉机供纸打印机的进纸器。框架可移动地安装具有多个进给销的环形带。盖可枢转地安装到框架上，并且可以在打开位置和关闭位置之间枢转。在封闭位置，盖的下表面面向环形带。可弹性变形的保持构件从盖的下表面延伸以促使纸与进给销接合。

3. 发明授权

US4773579A Web feed tractor 失效
标题翻译：网络拖拉机
公开(公告)号：US4773579A
公开(公告)日：1988-09-27
申请号：US32556
申请日：1987-04-01
申请人： Sadao Unuma
发明人： Sadao Unuma
IPC分类号： B41J11/26 , B41J11/30 , B65H20/20 , G03B1/22
CPC分类号： B41J11/30
摘要： A web feed tractor having a pair of side frames, a driving pulley and at least one idler pulley rotatably supported between the side frames at spaced intervals, an endless feed belt trained around the driving and idler pulleys, at least one support roller rotatably disposed between the side frames and adapted to support the inner surface of the upper reach of the feed belt, and restraining means disposed between the driving and idler pulleys and the feed belt and adapted to restrain lateral meandering of the feed belt.
摘要翻译：一种腹板给料拖拉机，其具有一对侧框架，一个驱动滑轮和至少一个惰轮，其间隔间隔地可旋转地支撑在侧框架之间，围绕驱动和惰轮滑轮的环形进给带，至少一个支撑辊，可旋转地设置在侧框架并且适于支撑进给带的上端的内表面，以及设置在驱动和惰轮之间的限制装置和进给带，并且适于限制进给带的横向弯曲。

4. 发明授权

US5797530A Sheet feed tractor 失效
标题翻译：供纸拖拉机
公开(公告)号：US5797530A
公开(公告)日：1998-08-25
申请号：US789546
申请日：1997-01-27
申请人： Sadao Unuma , Tohru Hamamoto
发明人： Sadao Unuma , Tohru Hamamoto
IPC分类号： B41J11/34 , B41J11/30 , B41J15/16 , B65H20/20 , G03B1/30
CPC分类号： B41J11/30 , B65H20/20
摘要： A second frame 12 is arranged at a predetermined position with respect to a drive sprocket 15 engaged with a drive shaft DS through a substantially true-circular hole shape drive bearing bore 14, and a transferring belt 25 is supported by a belt guide 18 integrally incorporated with the second frame 12 under a suitable tension while a predetermined positional relationship is maintained between the transferring belt 25 and the drive sprocket 15. If the inter shaft distance T between the drive shaft DS and a positioning shaft SS varies due to any reason, the variation in the inter shaft distance T between both shafts DS, SS is allowed by clearances of an elongated hole shape positioning bearing bore 20 formed in the second frame 12 and an elongated hole shape drive bearing bore 13 formed in a first frame 11, and accordingly, the transferring belt 25 is maintained always under a satisfactory predetermined tension with no variation in the tension of the transferring belt 25, thereby it is possible to enhance the accuracy of paper feed operation and printing operation and to enhance the reliability of the sheet feed tractor with a convenient structure.
摘要翻译：第二框架12相对于通过基本上为真圆形的孔形驱动轴承孔14与驱动轴DS接合的驱动链轮15布置在预定位置，并且传送带25由整体结合的带引导件18支撑第二框架12处于适当的张力下，同时在转印带25和驱动链轮15之间保持预定的位置关系。如果驱动轴DS和定位轴SS之间的轴间距离T由于任何原因而变化，通过形成在第二框架12中的细长孔形状定位轴承孔20和形成在第一框架11中的细长孔形状的驱动轴承孔13的间隙允许两个轴DS，SS之间的轴间距离T的变化，因此转印带25总是保持在令人满意的预定张力下，转印带25的张力没有变化可以提高进纸操作和打印操作的准确性，并提高造纸拖拉机结构的可靠性。

5. 发明授权

US5048739A Integral frame type paper feeder 失效
标题翻译：整体框架式进纸器
公开(公告)号：US5048739A
公开(公告)日：1991-09-17
申请号：US615854
申请日：1990-11-20
申请人： Sadao Unuma , Koichi Hara
发明人： Sadao Unuma , Koichi Hara
IPC分类号： B65H20/20
CPC分类号： B65H20/20
摘要： An integral frame type paper feeder in which perforated paper is fed by a pin-carrying feed belt set in a main frame by a driving sprocket. The paper feeder has a pair of sub-frames for assembling the feed belt and driving sprocket in a sub-assembly, and a main frame consisting of a pair of opposed side plates spaced from each other at a predetermined distance, and to which the sub-frames are fixed, and an upper plate the upper surface of which constitutes a paper feed surface. The upper plate has a feed belt moving bore which extends in the direction in which the perforated paper is fed, and which causes the portion of the feed belt on which the perforated paper is being fed to be aligned with the paper feed surface. The two sub-frames, and the feed belt and the driving sprocket are combined with the sub-frames into a driving assembly, and this is fitted between the side plates of the main frame.
摘要翻译：一种整体的框架型给纸机，其中穿孔纸被由驱动链轮设置在主框架中的销钉进给带进给。供纸器具有一对子组件，用于在子组件中组装进给带和驱动链轮;以及主框架，由一对彼此隔开预定距离的相对的侧板组成，并且子组件框架是固定的，并且其上表面构成供纸表面的上板。上板具有沿着穿孔纸进给的方向延伸的进给带移动孔，并且使进给带上的穿孔纸被供给的部分与供纸表面对齐。两个子框架以及馈送带和驱动链轮与子框架组合成驱动组件，并且它被安装在主框架的侧板之间。

6. 发明授权

US5002413A Paper feed tractor 失效
标题翻译：造纸拖拉机
公开(公告)号：US5002413A
公开(公告)日：1991-03-26
申请号：US414523
申请日：1989-09-29
申请人： Sadao Unuma
发明人： Sadao Unuma
IPC分类号： B41J11/26 , B41J11/30 , B65H20/20
CPC分类号： B41J11/30
摘要： A paper feed tractor comprising a main frame, a sub frame secured to the main frame with a major portion thereof and disposed in parallel to the main frame, and a belt driving unit supported for sliding movement between the main and sub frames. The main and sub frames have first openings formed in a coaxial relationship at locations adjacent one end portions thereof so as to loosely fit a drive shaft therein and second openings formed in a coaxial relationship at locations adjacent the other end portions thereof so as to support a support shaft for sliding movement and for fixation therein. The belt driving unit includes a belt driving sprocket wheel supported for rotation on a plate-formed belt receiving member, and an endless belt extends between the sprocket wheel and a belt guide formed on the belt receiving member. The belt receiving member of the belt driving unit has third and fourth openings formed at locations thereof opposing to the first and second openings for receiving the drive and support shafts loosely therein, respectively. A shaft hole which is formed in the belt driving sprocket wheel for engaging with the drive shaft is exposed to the third opening.
摘要翻译：一种供纸拖拉机，包括主框架，与其主要部分固定在主框架上并且平行于主框架设置的副框架的副框架，以及支撑在主框架和副框架之间滑动运动的皮带驱动单元。主框架和副框架具有在与其一个端部相邻的位置处以同轴关系形成的第一开口，以便将驱动轴松动地配合在其中，并且在与其另一端部相邻的位置处以同轴的关系形成第二开口，以支撑支撑轴用于滑动运动并固定在其中。皮带驱动单元包括：带盘驱动链轮，用于在板形皮带接收构件上旋转，环形带在链轮与形成在皮带接收部件上的皮带导向件之间延伸。皮带驱动单元的皮带接收部件具有形成在与第一和第二开口相对的位置处的第三和第四开口，用于分别容纳驱动和支撑轴。形成在用于与驱动轴接合的带驱动链轮中的轴孔暴露于第三开口。

7. 发明授权

US5172843A Structures of driving and driven sprockets and belt reception rotary member in paper feed apparatus 失效
标题翻译：纸张送料装置中的驱动和驱动旋钮和皮带接收旋转构件的结构
公开(公告)号：US5172843A
公开(公告)日：1992-12-22
申请号：US524050
申请日：1990-05-16
申请人： Sadao Unuma
发明人： Sadao Unuma
IPC分类号： B65H3/04 , B41J11/30 , B65H20/20 , F16H55/36
CPC分类号： B41J11/30
摘要： A paper feeding tractor in which perforated paper is fed by a pin carrying feed belt includes a feed belt driving sprocket which is housed between a pair of side frames. Two side faces of an inner circumferential portion of the sprocket body, except an outer circumferential portion formed with teeth, are formed with round fitting protuberances concentric with an axial hole therein such that the inner circumferential portion of the sprocket body is thinner than the outer circumferential portion. Thus, contact between the sprocket and the drive shaft is reduced to a relatively small sliding resistance. Paper can be moved in the axial direction of the drive shaft by a small force. During paper feed, any phase difference in rotation between the drive shaft and the sprocket can be eliminated. Alternatively, the feeding sprocket and a belt reception rotary member are housed within an auxiliary frame structure which is fit within and longitudinally slidable with respect to the main frame structure.
摘要翻译：一种供纸拖拉机，其中穿孔纸由销钉输送带输送，包括一个容纳在一对侧框架之间的进给带驱动链轮。除了形成有齿的外周部分之外，链轮体的内周部的两个侧面形成有与其中的轴向孔同心的圆形配合突起，使得链轮体的内周部比外周一部分。因此，链轮和驱动轴之间的接触被减小到较小的滑动阻力。纸张可以通过较小的力沿驱动轴的轴向移动。在进纸期间，可以消除驱动轴和链轮之间的任何旋转相位差。或者，进给链轮和皮带接收旋转部件容纳在辅助框架结构内，该辅助框架结构相对于主框架结构配合并可纵向滑动。

8. 发明授权

US4940449A Paper feed tractor 失效
标题翻译：造纸拖拉机
公开(公告)号：US4940449A
公开(公告)日：1990-07-10
申请号：US416477
申请日：1989-10-03
申请人： Sadao Unuma
发明人： Sadao Unuma
IPC分类号： B41J11/30 , B65H20/20 , B65H27/00
CPC分类号： B65H20/20 , B41J11/30
摘要： A paper feed tractor comprising a tractor frame including a pair of side frames and a belt guide disposed between and coupled to the side frames, a sprocket wheel supported for rotation between the two side frames, an endless belt adapted to be driven by the sprocket wheel to slidably travel on guide walls formed on three peripheral faces of the belt guide, and a cover mounted at a side thereof for pivotal motion on one of the side frames from and to a position in which it extends on a linear one of the guide walls of the belt guide. The endless belt has feed pins provided projectingly in a row at equal intervals on an outer peripheral face thereof, and a paper holder provided on the cover is positioned, on at least one side of the feed pins, in parallel to the outer peripheral face of the endless belt. The outer peripheral face of the endless belt has a non-slipping face formed thereon on which concave and convex portions of a small difference in dimension are formed to reduce a possible slip between the outer peripheral face of the endless belt and paper transported by the endless belt.
摘要翻译：一种造纸拖拉机，包括一个牵引车架，该拖拉机框架包括一对侧框架和一个设置在侧框架之间并联接到侧框架上的皮带导向器，一个支撑在两个侧框架之间的链轮，一个适于由链轮驱动的环形带可滑动地移动到形成在皮带引导件的三个外周面上的引导壁上，以及安装在其一侧的盖，用于在其中一个侧框架上从一个侧框架上枢转运动到一个位置，在该位置中，的皮带导轨。环形带具有在其外周面上以相等的间隔突出地设置的进给销，并且设置在盖上的纸保持架位于进给销的至少一侧上，平行于外周面无尽的皮带。环形带的外周面具有形成在其上的不滑动面，其上形成有小的差异的凹凸部，以减少环形带的外周面与由环形带传送的纸之间的滑动带。

9. 发明授权

US4836430A Paper feed apparatus 失效
标题翻译：送纸装置
公开(公告)号：US4836430A
公开(公告)日：1989-06-06
申请号：US157697
申请日：1988-02-19
申请人： Sadao Unuma , Masashi Yamashita
发明人： Sadao Unuma , Masashi Yamashita
IPC分类号： B41J11/30 , B65H20/20
CPC分类号： B41J11/30 , B65H20/20
摘要： A paper feed apparatus for a printer, having a belt type paper feed mechanism and a feed wheel both mounted on a frame. The belt type paper feed mechanism is of a construction in which a driving sprocket and two driven sprockets are arranged so that the respective rotational axes are positioned at the angles of a triangle, and in these positions the three sprockets are rotatably supported by the frame, and an endless belt is entrained about those sprockets. The endless belt has feed pins erected in a row at predetermined intervals on its outer peripheral surface. The feed wheel is supported by the frame rotatably about a rotational axis parallel to that of the driving sprocket in a position close to the same sprocket, and it has feed pins radially erected in a circumferential row at predetermined intervals on its outer peripheral surface. The driving sprocket and the feed wheel are driven synchronously so that the outer peripheral surface speed of the endless belt and that of the feed wheel being equal to each other.
摘要翻译：一种用于打印机的进纸装置，具有安装在框架上的带式供纸机构和进纸轮。带式给纸机构是这样的结构，其中驱动链轮和两个从动链轮被布置成使得各个旋转轴线以三角形的角度定位，并且在这些位置中，三个链轮由框架可旋转地支撑，并且环形带被夹带在这些链轮上。环形带具有在其外周面上以预定间隔一行地竖立的进给销。进给轮由框架可旋转地围绕平行于驱动链轮的旋转轴线在靠近同一链轮的位置支撑，并且其进给销在其外周表面上以预定的间隔在周向行中径向竖立。驱动链轮和进给轮被同步地驱动，使得环形带和进给轮的外周表面速度彼此相等。

10. 发明授权

US4789088A Paper feeding device 失效
标题翻译：送纸装置
公开(公告)号：US4789088A
公开(公告)日：1988-12-06
申请号：US157698
申请日：1988-02-19
申请人： Sadao Unuma , Masashi Yamashita
发明人： Sadao Unuma , Masashi Yamashita
IPC分类号： B41J11/30 , B41J11/00 , G03B1/22
CPC分类号： B41J11/30
摘要： A paper feeding tractor including a frame formed by a pair of said frames; a driving sprocket rotatably supported between both side frames at a first end portion of the frame; an endless belt adapted to be driven by the driving sprocket; a pair of first supporting rollers located at a second end portion of the frame and arcuate guiding members projecting from the opposite inner surfaces of the side frames at the second end portion for supporting said endless belt in a loop, whereby the endless belt is arcuately supported by the first supporting rollers and the arcuate guiding members; and a second supporting roller rotatably supported between both side frames at a longitudinal position between the driving sprocket and the first supporting rollers to support the inner peripheral surface of the end belt. The arcuate guiding members are designed to support both side edge portions of the inner peripheral surface of the endless belt, while the second supporting roller is designed to support the transversely central portion of the inner peripheral surface of the endless belt.
摘要翻译：一种供纸拖拉机，包括由一对所述框架形成的框架; 驱动链轮，其可旋转地支撑在所述框架的第一端部处的两侧框架之间; 适于由驱动链轮驱动的环形带; 位于框架的第二端部处的一对第一支撑辊和在第二端部处从侧框架的相对内表面突出的弓形引导构件，用于将环形带支撑在环中，由此环形带被弧形地支撑通过第一支撑辊和弓形引导构件; 以及第二支撑辊，其在驱动链轮和第一支撑辊之间的纵向位置处可旋转地支撑在两个侧框架之间，以支撑端部带的内周表面。弧形引导构件被设计成支撑环形带的内周面的两个侧边缘部分，而第二支撑辊被设计成支撑环形带的内周表面的横向中心部分。

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