公开(公告)号：US6139242A

公开(公告)日：2000-10-31

申请号：US840787

申请日：1997-04-16

Applicant: James C. Alexander

Inventor： James C. Alexander

IPC: B65G69/00

CPC classification number: B65G69/003

Abstract: A vehicle restraint for preventing movement of a vehicle from a parked position has a frame mountable at a loading dock to position a vehicle restraint mechanism operably coupled to the frame. The vehicle restraint mechanism has a restraining member with at least one hook movable between a lower inoperative position where said restraining member is out of contact with a vehicle to be restrained and an upper operative position where the restraining member contacts said vehicle and prevents movement from a parked position. A source of power, such as an actuator moves the restraining member upward to the operative position by having linkage coupling the source of power to the restraining member. A resilient member is coupled to the linkage and biases the restraining member into engagement with the vehicle. A security member is movable from a stored position to a blocking position preventing movement of the linkage in one direction thereby preventing the restraining member from lowering into the inoperative position and a spring member biases the security member into engagement with the linkage to prevent downward movement of the restraining member.

Abstract translation: 用于防止车辆从停放位置移动的车辆限制装置具有可安装在装载基座处的框架，用于定位可操作地联接到框架的车辆限制装置。 所述车辆限制机构具有限制构件，所述限制构件具有至少一个钩子，所述钩子可以在下部不工作位置之间移动，在所述下部不工作位置，所述限制构件与待限制的车辆不接合，并且所述限制构件接触所述车辆并防止从所述车辆移动的上部操作位置 停放位置 诸如致动器的动力源通过将动力源连接到约束构件而将约束构件向上移动到操作位置。 弹性构件联接到联动装置并且将限制构件偏置成与车辆接合。 安全部件可以从存储位置移动到阻止位置，从而防止连杆机构在一个方向上的移动，从而防止限制部件下降到不工作位置，并且弹簧部件将安全部件偏置成与连接件接合以防止向下移动 约束构件。

公开(公告)号：US5832554A

公开(公告)日：1998-11-10

申请号：US802430

申请日：1997-02-18

Applicant: James C. Alexander

Inventor： James C. Alexander

IPC: B65G69/28 ,  E01D1/00

CPC classification number: B65G69/2841

Abstract: A dock leveler, typically powered by an electric actuator or other motive source has a frame and a deck pivotally mounted to the frame. The source of power to move the deck is coupled to the underside of the deck. An extendable lip is pivotally mounted to one end of the deck and an arm assembly is coupled at one end to the lip and at another end to a crank carried by the deck to utilize movement of the deck to raise said lip into an extended position. A cam-latch arm is resiliently coupled to the arm assembly and selectively bearing on the crank by means of a spring coupling to the arm assembly. A linkage is coupled between the frame and said cam-latch arm to urge said cam-latch arm into contact with the crank as the deck is raised. This tends to cause movement between the cam portion and a roller on the crank which in turn provides a component of force to assist in raising said lip into the extended position.

Abstract translation: 通常由电动致动器或其他动力源供电的码头调平器具有枢转地安装到框架的框架和甲板。 移动甲板的力量来源与甲板的下侧相连。 可伸缩的唇缘枢转地安装在甲板的一端，并且臂组件在一端连接到唇缘，另一端与由甲板承载的曲柄结合，以利用甲板的运动，以使所述唇缘升高到延伸位置。 凸轮闩锁臂弹性地联接到臂组件并且通过与臂组件的弹簧联接选择性地支承在曲柄上。 联动装置联接在框架和所述凸轮闩锁臂之间，以在甲板升高时促使所述凸轮闩锁臂与曲柄接触。 这倾向于引起凸轮部分和曲柄上的辊之间的移动，这又提供了一个力的分量，以帮助将所述唇部提升到伸出位置。

公开(公告)号：US5813072A

公开(公告)日：1998-09-29

申请号：US757945

申请日：1996-11-27

Applicant: James C. Alexander

Inventor： James C. Alexander

IPC: B65G69/28 ,  E01D1/00

CPC classification number: B65G69/2894

Abstract: A dock leveler comprises a deck pivotally mounted at one end thereof for movement and having a lip mounted at the other end thereof. A safety leg assembly is pivotally mounted to an underside of said the and is biased into an extended position. A cam structure is carried by the safety leg assembly and pivotal therewith. A spring biases the cam in a direction to maintain the safety legs in the extended position. The cam structure has a slot into which a pin mounted on the safety legs engages. If the deck falls rapidly a surface on the cam engages a member on a stop block. This causes the cam to rapidly move but the spring attached to the pin cannot cause the legs to move as rapidly and it shifts in the slot. This exposes the safety leg supporting surfaces which contact a surface on the stop block to limit travel of the deck. If the deck moves slowly downward (second condition) the cam surface engages the member on the stop block gradually and thus the spring connected to the pin maintains the bias on the legs causing them to deflect with the cam and slowly retract.

Abstract translation: 码头调平器包括在其一端枢转地安装用于移动并具有安装在其另一端的唇缘的甲板。 安全腿组件枢转地安装到所述的底部并被偏压到延伸位置。 凸轮结构由安全腿组件承载并与其枢转。 弹簧将凸轮偏压以使安全腿保持在延伸位置。 凸轮结构具有一个狭槽，安装在安全腿上的销接合到该槽中。 如果甲板迅速下降，则凸轮上的表面将与止动块上的一个构件接合。 这使得凸轮快速移动，但是连接到销的弹簧不能使腿快速移动并且在槽中移动。 这暴露了与止动块上的表面接触的安全腿支撑表面以限制甲板的行进。 如果甲板缓慢向下移动（第二状态），凸轮表面逐渐与止动块上的构件接合，因此连接到销的弹簧保持腿上的偏压，使得它们与凸轮偏转并且缓慢缩回。

公开(公告)号：US5346353A

公开(公告)日：1994-09-13

申请号：US3467

申请日：1993-01-12

Applicant: James C. Alexander

Inventor： James C. Alexander

IPC: B65G69/00 ,  B65G67/02

CPC classification number: B65G69/003

Abstract: A vehicle restraint employs a 4 bar linkage to lift a restraining member to a position that engages a vehicle thus restraining it at a loading dock. The linkage is upwardly biased to hold the unit in an engaging position and may be retracted by using any of a number of mechanical techniques such as hydraulic electric or pneumatic power. The 4 bar linkage transfers all loading on the unit from the ICC to the frame thus isolating any driven members from overloads. A secondary hook mounted to the 4 bar linkage is pivotally spring loaded to limit vehicle travel away from the dock and to extend the capture range of the device in the case of ICC's bars that are damaged or mounted at non-standard positions at the rear of the vehicle.

Abstract translation: 车辆限制器采用4杆联动装置将限制构件提升到与车辆接合的位置，从而将其限制在装载坞。 联动装置被向上偏置以将装置保持在接合位置，并且可以通过使用诸如液压电动或气动动力的许多机械技术中的任何一种来缩回。 4 bar连接将本机上的所有负载从ICC传输到框架，从而将任何被驱动的构件从过载中隔离开来。 安装在4杆联动装置上的副钩被枢转地弹簧加载，以限制车辆行驶离开码头，并且在ICC的杆的情况下扩展装置的捕获范围，这些杆被损坏或安装在非标准位置的后方 机动车。

公开(公告)号：US5336033A

公开(公告)日：1994-08-09

申请号：US838921

申请日：1992-02-21

Applicant: James C. Alexander

Inventor： James C. Alexander

IPC: B65G69/00

CPC classification number: B65G69/003

Abstract: A vehicle restraint employs a 4 bar linkage to lift a restraining member to a position that engages a vehicle thus restraining it at a loading dock. The linkage is upwardly biased to hold the unit in an engaging position and may be retracted by using any of a number of mechanical techniques such as hydraulic electric or pneumatic power. The actuating mechanism employs a movable sector arm with engaging lugs to co-act with the 4-bar linkage limit the degree of float of the system and form the drive transfer to initially elevate the linkage or retract it against the upward bias. The 4 bar linkage transfers all loading on the unit from the ICC to the frame thus isolating any driven members from overloads. A secondary hook mounted to the 4 bar linkage is pivotally spring loaded to limit vehicle travel away from the dock and to extend the capture range of the device in the case of ICC's bars that are damaged or mounted at non-standard positions at the rear of the vehicle.

Abstract translation: 车辆限制器采用4杆联动装置将限制构件提升到与车辆接合的位置，从而将其限制在装载坞。 联动装置被向上偏置以将装置保持在接合位置，并且可以通过使用诸如液压电动或气动动力的许多机械技术中的任何一种来缩回。 致动机构采用可移动的扇形臂，其具有接合凸耳以与4杆连杆限制系统的浮动程度，并形成驱动传递，以最初提升联动装置或使其向上偏置缩回。 4 bar连接将本机上的所有负载从ICC传输到框架，从而将任何被驱动的构件从过载中隔离开来。 安装在4杆联动装置上的副钩被枢转地弹簧加载，以限制车辆行驶离开码头，并且在ICC的杆的情况下扩展装置的捕获范围，这些杆被损坏或安装在非标准位置的后方 机动车。

公开(公告)号：US5313681A

公开(公告)日：1994-05-24

申请号：US979227

申请日：1992-11-20

Applicant: James C. Alexander

Inventor： James C. Alexander

IPC: B65G69/28 ,  E01D1/00

CPC classification number: B65G69/2876

Abstract: A seal for a vertically storing dock leveler employs a foam pad connected to the underside of the deck. As the leveler is lowered, the pad contacts the shelf on to which the leveler is mounted and deflects inward and compresses to seal the space between the underside of the leveler and the shelf. The pad is a tapered foam with a fabric covering.

Abstract translation: 垂直储存平台矫直机的密封件采用连接到甲板下侧的泡沫垫。 当调平器降低时，垫接触平整机安装在其上的搁架，并向内偏转并压缩以密封整平机的下侧和搁板之间的空间。 垫是具有织物覆盖物的锥形泡沫。

公开(公告)号：US5120181A

公开(公告)日：1992-06-09

申请号：US466799

申请日：1990-01-18

Applicant: James C. Alexander

Inventor： James C. Alexander

IPC: B65G69/00

CPC classification number: B65G69/003

Abstract: A vehicle restraint employs a 4 bar linkage to lift a restraining member to a position that engages a vehicle thus restraining it at a loading dock. The linkage is upwardly based to hold the unit in an engaging position and may be retracted by using any of a number of mechanical techniques such as hydraulic electric or pneumatic power. The 4 bar linkage transfers all loading on the unit from the ICC to the frame thus isolating any driven members from overloads. A secondary hook mounted to the 4 bar linkage is pivotally spring loaded to limit vehicle travel away from the dock and to extend the capture range of the device in the case of ICC's bars that are damaged or mounted at non-standard positions at the rear of the vehicle.

Abstract translation: 车辆限制器采用4杆联动装置将限制构件提升到与车辆接合的位置，从而将其限制在装载坞。 联动装置是向上的，以将装置保持在接合位置，并且可以通过使用诸如液压电动或气动动力的多种机械技术中的任何一种来缩回。 4 bar连接将本机上的所有负载从ICC传输到框架，从而将任何被驱动的构件从过载中隔离开来。 安装在4杆联动装置上的副钩被枢转地弹簧加载，以限制车辆行驶离开码头，并且在ICC的杆的情况下扩展装置的捕获范围，这些杆被损坏或安装在非标准位置的后方 机动车。

公开(公告)号：US5001799A

公开(公告)日：1991-03-26

申请号：US331983

申请日：1989-04-03

Applicant: James C. Alexander ,  Vincent Sullivan

Inventor： James C. Alexander ,  Vincent Sullivan

IPC: B65G69/28

CPC classification number: B65G69/2876

Abstract: A seal for a vertically storing dock leveler employs a foam pad connected to the underside of the deck. As the leveller is lowered, the pad contacts the shelf on to which the leveller is mounted and deflects inward and compresses to seal the space between the underside of the leveller and the shelf. The pad is a tapered foam with a fabric covering.

Abstract translation: 垂直储存平台矫直机的密封件采用连接到甲板下侧的泡沫垫。 当调平器降低时，垫接触平整机安装在其上的搁架，并向内偏转并压缩以密封整平机的下侧和搁板之间的空间。 垫是具有织物覆盖物的锥形泡沫。

公开(公告)号：US4735036A

公开(公告)日：1988-04-05

申请号：US55270

申请日：1987-05-29

Applicant: James C. Alexander

Inventor： James C. Alexander

IPC: A01D34/30 ,  A01D75/18

CPC classification number: A01D34/30 ,  A01D34/305

Abstract: A knife drive centrifugal pendulum vibration absorber for an agricultural combine harvester includes a wobble drive assembly 82 with an input drive shaft 132. A flywheel 188 is secured to the wobble drive input drive shaft 132. The flywheel has apertures 192 with walls that are arcs about an axis that are parallel to the axis of rotation of the flywheel 188. A roller 194 is inserted in each aperture 194. The rollers 194 roll along the walls of the apertures 194 in response to changes in the speed of rotation of the flywheel 188 and absorb vibrations induced in the drive shaft 132 by a reciprocating knife assembly 74.

Abstract translation: 用于农业联合收割机的刀驱动离心摆式减振器包括具有输入驱动轴132的摆动驱动组件82.飞轮188固定到摆动驱动输入驱动轴132上。飞轮具有孔192，其壁围绕 平行于飞轮188的旋转轴线的轴线。辊194插入每个孔194中。辊194响应于飞轮188的旋转速度的变化而沿着孔194的壁滚动，并且 通过往复式刀组件74吸收驱动轴132中引起的振动。

公开(公告)号：US07409739B2

公开(公告)日：2008-08-12

申请号：US11347206

申请日：2006-02-06

Applicant: L. Blake Whitley ,  James C. Alexander ,  Richard Hoofard ,  David Saliger ,  Keith F. Moore

Inventor： L. Blake Whitley ,  James C. Alexander ,  Richard Hoofard ,  David Saliger ,  Keith F. Moore

IPC: E01D1/00

CPC classification number: B65G69/287

Abstract: A dock leveler support frame includes an upper frame member and a substantially vertical frame member connected thereto. The substantially vertical frame member includes both a structural member and a height-adjusting leg assembly. The leg assembly is adjustable via a drive member proximate the upper frame member. Rotating the drive member raises or lowers the upper frame member by altering the distance between the upper frame member and a foot at the lower end of the leg assembly. Ramp attachment points are also provided proximate the upper frame member. The support frame is installed by placing it in a pit with the upper frame member adjacent the curb, and adjusting the leg assembly to level the upper frame member to the curb. Once level, the back frame is secured to the dock, and the drive member may be secured to the upper frame member to prevent counter-rotation.

Abstract translation: 码头调平器支撑框架包括上框架构件和与其连接的大致垂直的框架构件。 大致垂直的框架构件包括结构构件和高度调节腿组件。 腿组件可通过靠近上框架构件的驱动构件来调节。 旋转驱动构件通过改变腿部组件的下端处的上框架构件和脚之间的距离而升高或降低上框架构件。 斜坡附着点也靠近上框架构件设置。 通过将支撑框架放置在与上框架构件邻近路缘石的凹坑中来安装支撑框架，并且调整腿组件以使上框架构件平整到路缘。 一旦水平，后框架被固定到基座上，并且驱动构件可以固定到上框架构件以防止反向旋转。