公开(公告)号：US4406420A

公开(公告)日：1983-09-27

申请号：US270713

申请日：1981-06-05

Applicant: James J. Villano

Inventor： James J. Villano

IPC: E05D15/10 ,  E05F11/54 ,  E05F15/14 ,  B65H75/00

CPC classification number: E05D15/1081 ,  E05F11/54 ,  E05F15/646 ,  E05D2015/1055 ,  E05D2015/1086 ,  E05Y2201/22 ,  E05Y2201/246 ,  E05Y2201/434 ,  E05Y2201/654 ,  E05Y2201/664 ,  E05Y2400/30 ,  E05Y2400/302 ,  E05Y2800/112 ,  E05Y2800/21 ,  E05Y2900/531

Abstract: A winch for use with a van door opening system having separate opening and closing cables includes a two-section drum mounted on a common, motor-driven shaft. A helical spring is interposed between each drum section and the shaft, for compensating for differential extension of the opening and closing cables and for maintaining tension in the opening and closing cables. A driver is affixed to the shaft, and cooperates with a stop on the interior surface of each drum section, for providing a positive driving force for opening the door, and for closing the door. In operation, rotation of the shaft stores energy in the appropriate spring before the driver contacts a stop to provide a positive driving force, so that cable tension will be maintained when the motor-driven shaft is de-energized.

Abstract translation: 用于具有单独的开闭电缆的厢式车开门系统的绞车包括安装在公共的电动机轴上的两段式鼓。 螺旋弹簧介于每个滚筒部分和轴之间，用于补偿打开和关闭的电缆的差动延伸并且用于保持打开和关闭的电缆中的张力。 驱动器固定到轴上，并与每个鼓部分的内表面上的止动件配合，以提供用于打开门的正向驱动力并且用于关闭门。 在操作中，轴的旋转在驱动器接触止动件之前将能量存储在适当的弹簧中，以提供正的驱动力，使得当电动机轴被断电时将保持电缆张力。

公开(公告)号：US3615065A

公开(公告)日：1971-10-26

申请号：US3615065D

申请日：1968-12-09

Applicant: ADELMA O ELLIOTT

Inventor： ELLIOTT ADELMA O

IPC: B65H75/48 ,  B66C13/08 ,  B66D1/26

CPC classification number: E05D13/1261 ,  E05Y2201/618 ,  E05Y2201/654 ,  E05Y2201/664 ,  E05Y2900/106 ,  Y10T16/641

Abstract: A COUNTERBALANCE WITH A CABLE PRETENSIONING DEVICE WHICH IS PARTICULARLY ADAPTABLE TO TORSION SPRING COUNTERBALANCES OR ROTARY SHAFT DRIVEN LIFT GARAGE DOORS OR THE LIKE TO PREVENT UNDUE SLACK IN THE WINCH LINES OR CABLES. THE COUPLING BETWEEN THE CABLE DRUM AND THE MEANS WHICH DRIVES THE DRUM PERMITS LIMITED RELATIVE ROTARY MOVEMENT. THE COUPLING IS PREFERABLY SPRING BIASED SUCH THAT THE WINDING DRUM IS BIASED FOR ROTATION IN ITS WIND-UP DIRECTION RELATIVE TO THE DRIVE SIDE OF THE COUPLING.

公开(公告)号：US2947355A

公开(公告)日：1960-08-02

申请号：US62065156

申请日：1956-11-06

Applicant: ELLIS SAUNDERS ,  ROBERT W SAUNDERS

Inventor： THURMAN TANDY B

IPC: E05D15/26

CPC classification number: E05D15/262 ,  E05D13/1215 ,  E05D13/1261 ,  E05Y2201/618 ,  E05Y2201/654 ,  E05Y2201/664 ,  E05Y2900/00 ,  E05Y2900/106 ,  E05Y2900/132