公开(公告)号：US5357832A

公开(公告)日：1994-10-25

申请号：US148549

申请日：1993-11-08

申请人： Gregory A. Ferguson

发明人： Gregory A. Ferguson

IPC分类号： B26D1/24 ,  B26D3/02 ,  B26D5/02 ,  B26D7/26 ,  B41J11/68 ,  B65H20/20 ,  B65H35/02 ,  B65H35/10

CPC分类号： B26D5/02 ,  B26D1/245 ,  B26D3/02 ,  B26D7/2621 ,  B41J11/68 ,  B65H20/20 ,  B65H35/02 ,  B65H35/10 ,  B65H2402/00 ,  Y10T83/658 ,  Y10T83/6603 ,  Y10T83/7847

摘要： A web feed device, particularly a tractor for feeding perforated paper, is provided with the capability of automatically cutting a margin along the edge of the paper. Where this margin is defined by side perforations, the apparatus is operative to burst the perforations automatically. The tractor has a lid which is spring biased in a closed position spaced from a surface of the frame of the tractor over which the paper is driven, as by a belt having pins which are received in feed perforations along the margin between the side perforations and the edge where the belt is entrained around a sprocket which drives the belt. The mechanism has a lower cutting disk, driven with the sprocket and presenting a cutting edge along an outside surface. An upper disk is reciprocally movable in a housing against the bias of a spring, which maintains the upper disk in retracted (non-cutting) position, to cutting position where a cutting edge between an inside surface of the upper disk overlaps the outside surface of the lower disk to form a cutting scissor for cutting the margin or bursting the side perforations. The cutting action is selectively enabled by manually advancing the upper disk, thereby selectively providing a cutting mode of operation and enabling the upper disk to release from the lower disk, when in its cutting mode position, automatically--as when a paper jams occurs and the lid is forced away its closed position when the housing is mounted on the lid.

摘要翻译： 纸幅馈送装置，特别是用于进给穿孔纸的拖拉机，具有沿着纸边缘自动切割边缘的能力。 在该边缘由侧面穿孔限定的情况下，该装置可操作以自动地破裂穿孔。 拖拉机具有盖子，该盖子在与拖拉机的框架的表面间隔开的关闭位置处被弹簧偏压，在该位置上纸张被驱动在该位置上，如具有销的皮带，该销具有沿着侧面穿孔之间的边缘的进给穿孔中 皮带夹在驱动皮带的链轮周围的边缘。 该机构具有较低的切割盘，由链轮驱动并沿着外表面呈现切割刃。 上盘在抵抗相对于将上盘回缩（非切割）位置的情况下将上盘保持在缩回（非切割）位置的弹簧的偏压的情况下在壳体中可往复移动到切割位置，其中，上盘的内表面之间的切割边缘与 下盘形成切割剪刀，用于切割边缘或破裂侧面穿孔。 选择性地通过手动前进上盘来切割动作，从而选择性地提供切割操作模式，并使得上盘在自动切割模式位置时自动从下盘释放，如同发生卡纸时 当外壳安装在盖子上时，盖子被迫离开其关闭位置。

公开(公告)号：US5346060A

公开(公告)日：1994-09-13

申请号：US114945

申请日：1993-08-31

申请人： Gregory A. Ferguson

发明人： Gregory A. Ferguson

IPC分类号： B65G15/54 ,  B65G17/08 ,  B65G17/06

CPC分类号： B65G17/086 ,  B65G2201/02

摘要： A link assembly for an endless conveyor belt includes a pair of side links and a center link interconnected together by way of a spring-biasing mechanism such that the conveyor belt provides its own tension without auxiliary tensioning apparatus.

摘要翻译： 用于环形传送带的连杆组件包括一对侧连杆和通过弹簧偏置机构互连在一起的中心杆，使得传送带在没有辅助张紧装置的情况下提供其自身的张力。

公开(公告)号：US5027993A

公开(公告)日：1991-07-02

申请号：US393203

申请日：1989-08-14

申请人： Gregory A. Ferguson

发明人： Gregory A. Ferguson

IPC分类号： B41J29/44 ,  B65H26/02

CPC分类号： B65H26/02 ,  B41J29/44

摘要： A perforated paper feed mechanism such as a tractor has an optical system for detecting the presence of the form and particularly the motion of the form and utilizes a reflector which may be mounted on the lid of the tractor at one end of the tractor (where the paper enters or leaves the tractor). The optical system may be implemented by a prism which folds the path of light from a light source (an LED) to a photo detector (a photo-transistor) the path is aligned with the perforations in the paper. Since the perforations are spaced, the photo transistor provides a train of pulses as the paper is fed by the tractor. A pulse detector responds to the presence or absence of pulses within a given period of time comparable to the time when perforations are fed past the optical path. An output from the detector thus indicates whether the paper is in motion and is being fed by the tractor. Failure to receive pulses indicates either the absence of paper (paper out) or a jam in the feed.

摘要翻译： 诸如拖拉机的穿孔进纸机构具有用于检测形式的存在，特别是形式的运动的光学系统，并且利用可以在拖拉机的一端安装在拖拉机的盖上的反射器（其中 纸进入或离开拖拉机）。 光学系统可以通过将来自光源（LED）的光的路径折叠到光检测器（光电晶体管）的棱镜来实现，该光路与路径与纸中的穿孔对准。 由于穿孔是间隔开的，因为纸张由拖拉机供给时，光电晶体管提供一串脉冲。 脉冲检测器响应在给定时间段内存在或不存在与穿孔穿过光路的时间相当的脉冲。 因此，检测器的输出表示纸张是否在运动中并且由拖拉机进给。 不接收脉冲表示进纸中没有纸张（纸张出现）或卡纸。

公开(公告)号：US4765523A

公开(公告)日：1988-08-23

申请号：US94367

申请日：1987-09-08

申请人： Gregory A. Ferguson

发明人： Gregory A. Ferguson

IPC分类号： B41J11/30 ,  B65H20/20 ,  G03B1/30 ,  E05D15/06

CPC分类号： B41J11/30 ,  B65H20/20 ,  Y10T16/5448

摘要： A document feed tractor has a multiposition lid which is held by projections from the frame of the tractor in open position to enable loading of the perforated document (paper) in the tractor. The lid is pivotally mounted in openings in the projections which enable lid to be both rotated and translated from the open position over the projections, which then define ledges holding up the lid, to closed position when the lid is moved over the edges of the ledges. Then, the lid can snap down under a spring bias to the closed position where it confines the document on the tractor belt.

摘要翻译： 文件进料拖拉机具有一个多功能盖，其由处于打开位置的拖拉机框架的突出部分保持，以便能够将穿孔的文件（纸）装入拖拉机。 盖子可枢转地安装在突起中的开口中，这使得盖子能够从突出部分上的打开位置旋转和平移，凸起部分然后在将盖子移动到凸缘的边缘上时将其保持在盖子上的凸缘到关闭位置 。 然后，盖子可以弹簧偏压地向下弯曲到关闭位置，在该位置将文件限制在拖拉机带上。

公开(公告)号：US4616773A

公开(公告)日：1986-10-14

申请号：US604761

申请日：1984-04-27

申请人： Leo J. Kerivan

发明人： Leo J. Kerivan

IPC分类号： B65H29/04 ,  B26F3/02 ,  B41J11/30 ,  B41J11/66 ,  B65H29/20 ,  B65H35/00 ,  B65H17/38 ,  B65H35/10

CPC分类号： B41J11/66 ,  B41J11/30 ,  Y10T225/14 ,  Y10T225/16 ,  Y10T225/343 ,  Y10T225/35

摘要： An overhead unit used with a printer having a platen for feeding continuous, fan-folded, edge perforated forms. Tractors engage the feed perforations on the forms. The unit automatically bursts the side perforations by the use of flexural members which extract energy from the forms feed and oscillate to burst the side perforations. Bursting of the cross perforations is carried out by a pivotally mounted, lever actuated bar which engages the platen and forms a toggle therewith to engage the successive forms against the platen just below the cross perforations; the toggle being arranged to tighten and increase the clamping force, as the form is pulled away from the platen when bursting the cross perforations. A roller assembly including rollers engaging the outside of the loop on the infeed or upstream side of the platen removes any platen wave due to differential displacement of the forms as they travel with linear motion through the tractors and with rotational motion around the platen. These rollers also steer the form to counteract lateral meandering thereof on the platen. Other rollers on the infeed side of the tractors wrap the forms to at least a 90.degree. arc to eliminate positive tents at the cross perforations. Backlash is removed by a diagonally split collet and tapered sleeve which controls the clearance between the tractor drive shaft and the sprockets of the tractors. Additional rollers on the drive shaft and the support shaft for the tractors, which can be used together with fingers extending from the support shaft, stiffen the forms between the tractors.

摘要翻译： 与具有压板的打印机一起使用的顶置单元，用于供给连续的，扇形折叠的边缘穿孔形式。 拖拉机与表格上的进料穿孔接合。 该单元通过使用弯曲构件自动地破裂侧孔，该挠曲构件从形式进料中提取能量并振荡以破裂侧孔。 交叉穿孔的破裂是通过枢转安装的杠杆驱动的杆进行的，该杠杆接合压盘并与其形成一个肘节，以使连续的形式抵靠刚好在交叉穿孔下方的压板; 所述肘节被布置成当突出交叉穿孔时将所述形式从所述压板拉出，以紧固并增加所述夹紧力。 滚子组件包括在压板的进料或上游侧接合回路外侧的辊子，当它们以直线运动通过拖拉机行进并且围绕压板的旋转运动时，由于形状的差异移位而导致任何压板波形。 这些辊子还引导形式抵消压板上的侧向弯曲。 拖拉机进料侧的其他辊子将形状包裹至少90°弧度，以消除交叉穿孔处的正面帐篷。 齿间隙由对角线分开的夹头和锥形套筒移除，该套筒控制拖拉机驱动轴与拖拉机链轮之间的间隙。 驱动轴上的附加辊和用于拖拉机的支撑轴，其可以与从支撑轴延伸的手指一起使用，加强了拖拉机之间的形式。

公开(公告)号：US4706861A

公开(公告)日：1987-11-17

申请号：US913830

申请日：1986-09-30

申请人： Leo J. Kerivan

发明人： Leo J. Kerivan

IPC分类号： B41J11/26 ,  B41J11/30 ,  B65H20/20 ,  G03B1/30

CPC分类号： B41J11/30

摘要： Web feeding apparatus which may be in the form of a tractor which feeds perforated webs, such as perforated paper in a computer printer, typewriter or the like has a frame which locates a belt having pins projecting from the belt which enter the perforations in the paper and drive the paper when the belt is driven, as by a sprocket which is journalled in the frame. In the closed position, the lid overlies the belt and presents a surface adjacent the belt which is separated by a gap through which the paper passes when it is engaged with the pins. The paper also overlies the surface of the inside side plate. The gap spacing (the distance which separates the surface of the belt on which the paper is disposed) is set automatically by a gap setting member which projects from the lid and is biased with the lid into engagement with the paper when the lid is in closed position and the belt is in driving relationship with the paper. The gap setting member may be a rib or runner projecting downwardly from the lid and extending along the surface of the inside side plate.

摘要翻译： 可以是在打印机等打印机等进给穿孔纸幅的穿梭纸的形式的纸幅供给装置具有框架，该框架具有带状物的框架，该带子带从带进入纸中的穿孔 并且当带被驱动时驱动纸张，如通过支架在框架中的链轮。 在关闭位置，盖子覆盖在皮带上，并且呈现与皮带相邻的表面，该表面在与销接合时通过该间隙分开。 纸张也覆盖在内侧板的表面上。 间隙间隔（分离设置有纸张的带的表面的距离）由间隙设定构件自动设定，间隙设定构件从盖子突出并且当盖子被关闭时被盖子与纸张偏置成与纸接合 位置和皮带正在与纸张的驱动关系。 间隙设定构件可以是从盖子向下突出并沿着内侧板的表面延伸的肋或流道。

公开(公告)号：US4423969A

公开(公告)日：1984-01-03

申请号：US337240

申请日：1982-01-06

申请人： Ronald J. Kobryn

发明人： Ronald J. Kobryn

IPC分类号： B41J2/275 ,  B41J3/12

CPC分类号： B41J2/275

摘要： An impact dot matrix print head has a body with a coil frame assembly and a nose piece on the rear of which the coil frame assembly is mounted. The nose piece has guides for print wires which are maintained in sliding relationship by a linear slot guide at the front end of the nose piece. Armatures are freely disposed at one end on the frame and at the other end on the rear ends of the print wires. An end cap which bears on the frame assembly has a plurality of posts which extend through holes in each of the armatures and holes in spider springs which bear against the end cap and against the armatures where they bear against and pivot on the frame whereby to provide for ease of assembly and low friction guidance of the armatures and the spider springs which retain them. These springs may also be located with respect to the pivot so that they oppose the force of return springs on the print wires and partially balance such force to improve magnetic actuation of the armatures to help increase the printing speed of the head. Another end cap at the front of the frame assembly and the rear end cap are joined together by press fitting into posts to clamp the frame assembly into assembled relationship. A printed circuit board to which the coils are connected may be attached to the outside of the front end cap facing the front end of the nose piece.

摘要翻译： 冲击式点阵打印头具有带有线圈框架组件的本体，并且在其后部安装有线圈框架组件的鼻部件。 鼻片具有用于打印线的引导件，其通过鼻部前端处的线性狭槽引导件保持滑动关系。 电枢自由地设置在框架的一端并且在打印线的后端的另一端。 承载在框架组件上的端盖具有多个柱，其延伸穿过每个电枢中的每个电枢中的孔和在蜘蛛弹簧中的孔，其抵靠端盖并抵靠电枢，在那里它们抵靠并枢转在框架上，从而提供 为了易于组装和低摩擦引导的电枢和保持它们的蜘蛛弹簧。 这些弹簧也可以相对于枢轴定位，使得它们抵抗印刷线上的复位弹簧的力并且部分地平衡这种力以改善电枢的磁致动以帮助提高磁头的打印速度。 框架组件前端的另一个端盖和后端盖通过压配合到柱中而被连接在一起，以将框架组件夹紧到组装关系中。 连接有线圈的印刷电路板可以附接到面向鼻部前端的前端帽的外侧。

公开(公告)号：US4129239A

公开(公告)日：1978-12-12

申请号：US823370

申请日：1977-08-10

申请人： Leo J. Hubbard

发明人： Leo J. Hubbard

IPC分类号： B41J11/32 ,  B65H20/20 ,  B65H17/34

CPC分类号： B41J11/32 ,  B65H20/20

摘要： In order to clamp a document metering tractor to a support shaft which together with a drive shaft provide a mounting for the tractor and without causing interference, such as binding, with the drive imparted by the drive shaft, a device is provided for clamping the tractor to the support shaft. This device consists of two parts one of which contains a split ring through which the support shaft extends and the other is a member for closing the ring and retaining it in closed condition. The split ring part may be a collet located internally of the tractor or a sleeve extending externally of the tractor and having the split ring as a portion thereof. In either case, a floating connection is provided between the split ring part and the tractor such as may be afforded by an enlarged opening in the tractor which contains the split ring part. The closing part is a member rotatable with respect to the split ring and may be provided by another ring having flats which engage the outer walls of the collet when relative rotation occurs. The rotatable part may be a screw which closes jaws extending from the split ring part which is disposed outside of the confines of the tractor. In either case the tractor may be movable axially of the drive and support shafts so as to locate the driving pins thereof with respect to the perforations in the document. When the proper alignment is obtained the clamp engages the tractor with the support shaft and locates it without giving rise to any torques or other forces which might otherwise interfere with the driving of the document.

摘要翻译： 为了将文件计量拖拉机夹紧到支撑轴上，驱动轴与驱动轴一起提供用于拖拉机的安装件，并且不会由于驱动轴带来的驱动而引起诸如装订的干扰，所以设置有用于夹紧拖拉机 到支撑轴。 该装置由两部分组成，其中一个部分包括一个分开的环，支撑轴通过该环延伸，另一个是用于关闭环并将其保持在闭合状态的构件。 开口环部分可以是位于拖拉机内部的夹头或者在拖拉机外部延伸并具有开口环作为其一部分的套筒。 在任一种情况下，在开口环部分和拖拉机之间提供浮动连接，例如可以通过包含分离环部分的拖拉机中的扩大开口来提供。 关闭部分是相对于开口环可旋转的构件，并且可以由具有平面的另一个环提供，当相对旋转发生时，该环具有与夹头的外壁接合的平面。 可旋转部分可以是一个螺钉，该螺钉闭合从设置在拖拉机的范围之外的开口环部分延伸的爪。 在任一情况下，拖拉机可以在驱动和支撑轴的轴向上移动，以便相对于文件中的穿孔定位其驱动销。 当获得适当的对准时，夹具将牵引器与支撑轴接合并定位，而不会产生任何扭矩或其他可能干扰文件驱动的力。

公开(公告)号：US5692597A

公开(公告)日：1997-12-02

申请号：US440581

申请日：1995-06-28

申请人： Gregory A. Ferguson

发明人： Gregory A. Ferguson

IPC分类号： B65G15/00 ,  B65G15/28 ,  B65G15/60 ,  B65G21/06

CPC分类号： B65G21/06 ,  B65G15/00 ,  B65G15/28 ,  B65G15/60 ,  B65G2201/06

摘要： A low cost, self contained endless conveyor belt assembly includes a flat conveyor bed, an endless conveyor belt and a plurality of frame members mounted thereto. The bed mounted frame members support and house a drive shaft which includes sprockets for engaging the front inside radius of the endless conveyor belt and a remote mounted drive motor. The self contained conveyor belt assembly is adjustably mounted to complemental frame rails, one of which includes the drive motor to which can be coupled the drive pulley of the endless conveyor belt.

摘要翻译： 低成本，自包含的环形输送带组件包括扁平输送机床，环形输送带和安装在其上的多个框架构件。 床安装的框架构件支撑并容纳驱动轴，该驱动轴包括用于接合环形传送带的前内半径的链轮和远程安装的驱动马达。 自包含的输送带组件可调节地安装到互补框架轨道，其中一个包括驱动马达，可以将驱动马达与环形输送带的驱动滑轮联接。

公开(公告)号：USD358609S

公开(公告)日：1995-05-23

申请号：US21561

申请日：1994-04-20

申请人： Gregory A. Ferguson

设计人： Gregory A. Ferguson