公开(公告)号：US20100031457A1

公开(公告)日：2010-02-11

申请号：US12462830

申请日：2009-08-10

申请人： Denis Gleason ,  Andrew Barrett

发明人： Denis Gleason ,  Andrew Barrett

IPC分类号： B65G69/34 ,  E01D1/00 ,  B65G69/28

CPC分类号： B65G69/2823 ,  B65G69/2841

摘要： A dock leveler with a deck and an extendable lip that hangs pendant when the deck is in a stored position. A lip extension mechanism engages when the deck is raised to a raised or cocked position. As the deck is lowered to an intermediate transition position, the extension mechanism extends the lip to a fully extended position. At the transition position, the lip extension mechanism automatically disengages and a lip locking mechanism automatically and simultaneously locks and holds the lip in its fully extended position. When the deck is further lowered so that the lip comes to rest on a truck trailer, the locking mechanism automatically released or unlocked. The lip returns to its pendant position when the deck is raised from the truck bed. After the truck pulls away from the dock, the deck is lowered to its stored position.

摘要翻译： 一个带有甲板和一个可伸缩唇缘的码头调平器，当甲板处于储存位置时，挂起吊坠。 当甲板升高到升高或翘起位置时，唇缘延伸机构接合。 当甲板下降到中间过渡位置时，延伸机构将唇缘延伸到完全伸出的位置。 在过渡位置，唇部延伸机构自动脱开，唇部锁定机构自动同时锁定并将唇部保持在其完全伸出位置。 当甲板进一步下降使得唇部停在卡车拖车上时，锁定机构自动释放或解锁。 当甲板从卡车上升起时，唇部返回到其悬挂位置。 在卡车从码头拉出后，甲板下降到其存放位置。

公开(公告)号：US07131160B2

公开(公告)日：2006-11-07

申请号：US10854308

申请日：2004-05-27

申请人： James C. Alexander ,  Richard Hoofard

发明人： James C. Alexander ,  Richard Hoofard

IPC分类号： E01D1/00

CPC分类号： B65G69/2835 ,  B65G69/2841

摘要： A dock leveler for bridging the gap between a loading dock and the bed of a vehicle parked at the loading dock. The dock leveler is configured for installation on the top of the dock and is designed to rotate from a vertically-stored raised position to at least one lowered, operative position. In some embodiments, the dock leveler can be lowered either for normal operation so that the deck assembly rests on the bed of the vehicle or it can be lowered to accommodate an end-loading condition.

公开(公告)号：US07032267B2

公开(公告)日：2006-04-25

申请号：US10843065

申请日：2004-05-11

申请人： Michael Mitchell ,  Timothy Muhl ,  Matthew Tourdot ,  Reinhard E. Sander ,  Norbert Hahn

发明人： Michael Mitchell ,  Timothy Muhl ,  Matthew Tourdot ,  Reinhard E. Sander ,  Norbert Hahn

IPC分类号： E01D1/00

CPC分类号： B65G69/2894 ,  B65G69/2841

摘要： To permit below-dock level end-loading operations and to limit accidental freefalling of a dock leveler's deck, a dock leveler includes a unique support mechanism that employs one or more safety legs with an integral or operatively connected lip deflector. The support mechanism can be selectively moved to a deck-supporting position for freefall protection or moved to a lip-deflecting position for below dock level end-loading operations. In the deck-supporting position, the safety leg prevents the deck from falling an unsafe distance. In the lip-deflecting position, the lip deflector guides the descending motion of the dock leveler's lip extension plate so that the lip, while hanging pendant, can bypass and descend below a set of lip keepers.

摘要翻译： 为了允许码头下端的装卸作业，并限制码头平整机甲板的意外自由下落，码头调平器包括一个独特的支撑机构，其采用一个或多个安全腿与整体的或可操作地连接的唇部偏转器。 支撑机构可以选择性地移动到用于自由落体保护的甲板支撑位置或者移动到唇部偏转位置以用于低于码头水平的最终装载操作。 在甲板支撑位置，安全腿防止甲板落下不安全的距离。 在唇部偏转位置，唇部偏转器引导平台矫正器的唇缘延伸板的下降运动，使得唇缘在悬挂吊坠时可以绕过并下降到一组嘴唇保持器之下。

公开(公告)号：US20050015900A1

公开(公告)日：2005-01-27

申请号：US10854294

申请日：2004-05-27

申请人： James Alexander ,  Richard Hoofard

发明人： James Alexander ,  Richard Hoofard

IPC分类号： B65G69/28 ,  E01D1/00

CPC分类号： B65G69/2835 ,  B65G69/2841

摘要： A dock leveler for bridging the gap between a loading dock and the bed of a vehicle parked at the loading dock. The dock leveler is configured for installation on the top of the dock and is designed to rotate from a vertically-stored raised position to at least one lowered, operative position. In some embodiments, the dock leveler can be lowered either for normal operation so that the deck assembly rests on the bed of the vehicle or it can be lowered to accommodate an end-loading condition.

公开(公告)号：US06629328B2

公开(公告)日：2003-10-07

申请号：US09972586

申请日：2001-10-09

申请人： Thomas J. Widule

发明人： Thomas J. Widule

IPC分类号： E01D100

CPC分类号： B65G69/2841 ,  B65G69/2823

摘要： A dock leveler includes a frame, a ramp, a lip, and a linkage. The ramp is rotatably coupled to the frame for rotation between a substantially horizontal first position and an inclined second position. The lip is coupled to the ramp for rotation between a pendent position and an extended position. The linkage is coupled to the lip and includes a pivot point and a centerline. The linkage supports the lip in the extended position when the pivot point is on a first side of the centerline and allows the lip to fall pendent under the force of gravity when the pivot point is on a second side of the centerline. The pivot point is moved from the first side of the centerline to the second side of the centerline when the lip is contacted by a vehicle that creates a downward moment on the lip.

摘要翻译： 码头调平器包括框架，斜坡，唇缘和连杆。 斜面可旋转地联接到框架，用于在基本水平的第一位置和倾斜的第二位置之间旋转。 唇缘联接到斜面以在悬挂位置和延伸位置之间旋转。 连杆联接到唇部并且包括枢转点和中心线。 当枢轴点在中心线的第一侧上时，连杆将唇缘支撑在延伸位置，并且当枢轴点在中心线的第二侧时允许唇缘在重力的作用下坠落。 当唇缘与车辆接触时，枢轴点从中心线的第一侧移动到中心线的第二侧，从而在唇缘上产生向下的力矩。

公开(公告)号：US20030066144A1

公开(公告)日：2003-04-10

申请号：US09972586

申请日：2001-10-09

申请人： Kelley Company, Inc.

发明人： Thomas J. Widule

IPC分类号： E01D001/00

CPC分类号： B65G69/2841 ,  B65G69/2823

摘要： The dock leveler of the present invention includes a frame, a ramp, a lip, and a linkage. The ramp is rotatably coupled to the frame for rotation between a substantially horizontal first position and an inclined second position. The lip is coupled to the ramp for rotation between a pendent position and an extended position. The linkage is coupled to the lip and includes a pivot point and a centerline. The linkage supports the lip in the extended position when the pivot point is on a first side of the centerline and allows the lip to fall pendent under the force of gravity when the pivot point is on a second side of the centerline. The pivot point is moved from the first side of the centerline to the second side of the centerline when the lip is contacted by a vehicle that creates a downward moment on the lip.

摘要翻译： 本发明的底座矫直机包括框架，斜面，唇缘和连杆。 斜面可旋转地联接到框架，用于在基本水平的第一位置和倾斜的第二位置之间旋转。 唇缘联接到斜面以在悬挂位置和延伸位置之间旋转。 连杆联接到唇部并且包括枢转点和中心线。 当枢轴点在中心线的第一侧上时，连杆将唇缘支撑在延伸位置，并且当枢轴点在中心线的第二侧时允许唇缘在重力的作用下坠落。 当唇缘与车辆接触时，枢轴点从中心线的第一侧移动到中心线的第二侧，从而在唇缘上产生向下的力矩。

公开(公告)号：US20020092101A1

公开(公告)日：2002-07-18

申请号：US09759860

申请日：2001-01-12

发明人： Mark S. Lounsbury ,  Charles J. Torgersen

IPC分类号： E01D001/00

CPC分类号： B65G69/2841 ,  B65G69/2894

摘要： A self releasing holddown mechanism for a dock leveler includes an elongated bar member adapted for connection to a dock leveler ramp and engageable with a roller lock member mounted on a body connected to an anchor rod which is connected at one end to the dock leveler frame. The anchor rod includes a release plate mounted thereon including adjustable stop members. The release plate is mounted for adjustment with respect to the rod. A coil spring is sleeved over the rod and engageable with the release plate and the body which includes an elongated tube journaling the spring. A release actuator is mounted for pivotal movement on the body and is connected to the roller lock member to move the lock member between positions for forcible engagement with the bar member and to release the bar member. The release actuator may also be operated at will.

公开(公告)号：US6163913A

公开(公告)日：2000-12-26

申请号：US78793

申请日：1998-05-14

申请人： Thomas M. DiSieno ,  John J. LeTourneau ,  Bruce R. Winter

发明人： Thomas M. DiSieno ,  John J. LeTourneau ,  Bruce R. Winter

IPC分类号： B65G69/28 ,  E01D1/00

CPC分类号： B65G69/2841 ,  B65G69/2823

摘要： A dock leveler includes a pivotally mounted ramp and a lip member pivotally mounted to the distal end of the ramp and moveable between an extended position and a depending position for forming a path between a loading dock and a loadbed of a vehicle. A motor operated linear power screw type actuator is connected to the ramp for moving the ramp to an elevated position and includes an extensible tube member which is engageable with a second tube in telescoped relationship in such a way that the actuator tube may be controlled to be retracted after positioning the ramp to engage the loadbed of a vehicle so that the actuator is not subject to forces exerted by the ramp during oscillatory movement while the vehicle is being loaded or unloaded. In one alternate embodiment the actuator is connected to an intermediate link to allow the pivotal movement of the ramp without exerting damaging forces on the actuator. The lip may be extended by a toggle linkage responsive to movement of the ramp from an elevated position to a declined position in engagement with the loadbed and a latch mechanism is operable to hold the ramp in an extended position until the loadbed is engaged. Ramp support legs are retractable to allow further declining movement of the ramp and are actuatable by a spring connected to a linkage which is moveable to positions to change the direction of spring biasing forces acting to retract and extend the legs.

摘要翻译： 平台矫直机包括可枢转地安装的斜坡和可枢转地安装到斜坡的远端的唇部构件，并且可在延伸位置和悬挂位置之间移动，用于在装载台与车辆的载重台之间形成路径。 马达驱动的线性动力螺杆式致动器连接到斜坡，用于将斜坡移动到升高位置，并且包括可伸缩管构件，其可伸缩关系与第二管接合，使得致动器管可以被控制为 在定位斜坡以接合车辆的负载物之后缩回，使得致动器在车辆被加载或卸载时在摆动期间不受斜坡施加的力。 在一个替代实施例中，致动器连接到中间连杆，以允许斜坡的枢转运动，而不会在致动器上施加破坏力。 响应于斜坡从升高位置移动到与负载床接合的下降位置，襟翼可以通过肘杆延伸，并且闩锁机构可操作以将斜坡保持在延伸位置，直到载重台接合。 斜坡支撑腿可缩回以允许斜坡的进一步下降的运动，并且可通过连接到联动装置的弹簧致动，该联动装置可移动到改变弹簧偏置力的方向以使收缩和延伸腿的位置。

公开(公告)号：US5784740A

公开(公告)日：1998-07-28

申请号：US714853

申请日：1996-09-17

申请人： Thomas M. DiSieno ,  John J. LeTourneau ,  Bruce R. Winter

发明人： Thomas M. DiSieno ,  John J. LeTourneau ,  Bruce R. Winter

IPC分类号： B65G69/28 ,  E01D1/00

CPC分类号： B65G69/2841 ,  B65G69/2823

摘要： A dock leveler includes a pivotally mounted ramp and a lip member pivotally mounted to the distal end of the ramp and moveable between an extended position and a depending position for forming a path between a loading dock and a loadbed of a vehicle. A motor operated linear power screw type actuator is connected to the ramp for moving the ramp to an elevated position and includes an extensible tube member which is engageable with a second tube in telescoped relationship in such a way that the actuator tube may be controlled to be retracted after positioning the ramp to engage the loadbed of a vehicle so that the actuator is not subject to forces exerted by the ramp during oscillatory movement while the vehicle is being loaded or unloaded. In one alternate embodiment the actuator is connected to an intermediate link to allow the pivotal movement of the ramp without exerting damaging forces on the actuator. The lip may be extended by a toggle linkage responsive to movement of the ramp from an elevated position to a declined position in engagement with the loadbed and a latch mechanism is operable to hold the ramp in an extended position until the loadbed is engaged. Ramp support legs are retractable to allow further declining movement of the ramp and are actuatable by a spring connected to a linkage which is moveable to positions to change the direction of spring biasing forces acting to retract and extend the legs.

公开(公告)号：US5392481A

公开(公告)日：1995-02-28

申请号：US728260

申请日：1991-07-11

申请人： Martin P. Hageman

发明人： Martin P. Hageman

IPC分类号： B65G69/28 ,  E01D1/00

CPC分类号： B65G69/2841

摘要： A dockboard includes a ramp which is hinged at its rear edge to a loading dock and a lip is hinged to the front edge of the ramp and can be pivoted from a downwardly hanging pendant position to an extended position generally flush with the ramp surface. The ramp is moved from a horizontal position to an upwardly inclined position by a counterbalancing spring assembly and a hydraulic holddown prevents upward movement of the ramp unless manually released. A return-to-dock-level mechanism includes a link that is pivotally connected to the underside of the ramp and an arm interconnects the link with the lip. If the ramp is at a below-dock-level position when a truck pulls away from the dock after loading operation is completed, the lip will fall to its pendant position and the downward movement of the lip is transmitted through the link and arm to pivot the arm into engagement with the release lever of the holddown, thereby releasing the holddown to enable the ramp to be elevated through the counterbalancing spring assembly. As the ramp is elevated to dock-level, the link rides out of contact with the release lever causing the holddown to be re-engaged and prevent further upward movement of the ramp.

摘要翻译： 码头板包括一个斜坡，该坡道在其后边缘处铰接到一个装载基座，并且一个唇缘铰接到斜坡的前边缘，并且可以从向下悬挂的悬挂位置枢转到通常与坡道表面齐平的延伸位置。 斜坡由平衡弹簧组件从水平位置移动到向上倾斜的位置，并且液压压紧防止斜坡的向上移动，除非手动释放。 回到平台级机构包括枢转地连接到斜坡的下侧的连杆，并且臂将连杆与唇缘互连。 如果在加载操作完成后，当卡车从码头拉出时，斜坡处于水平位置，则唇部将落到其垂悬位置，并且唇缘的向下运动通过连杆和臂传递以枢转 臂与压紧释放杆接合，从而释放压紧以使斜坡能够通过平衡弹簧组件升高。 当斜坡升高到底座水平面时，链接与释放杆脱离接触，导致压紧重新接合，并防止斜坡进一步向上移动。