公开(公告)号：US20060000058A1

公开(公告)日：2006-01-05

申请号：US11157290

申请日：2005-06-21

Applicant: Jefferey Robertson

Inventor： Jefferey Robertson

IPC: E05D13/00

CPC classification number: E05D13/1207 ,  E05Y2201/67 ,  E05Y2900/148 ,  Y10T16/64

Abstract: This block and tackle window balance is based on molding a middle carriage pulley body and a cord terminal (or anchor) in a tip-to-tip position on a cord with each molded pair spaced appropriately from the next molded pair. When the cord is severed between tips, segments of cord are created with a middle carriage body already molded/connected at one end and a terminal already molded/connected at the other end and facing in the opposite direction. The molded middle carriage block component provides for attachment of the middle carriage block to the balance spring, receives a sheave and supports the sheave for rotation, retains the sash cord within sheaves, and guides the middle carriage assembly in its travel along the balance channel. The shape of its terminal provides and facilitates the ease with which the balance cord can be connected to other operative portions of the window frame or assembly. A novel snap-together sheave pair is utilized to simplify balance assembly.

Abstract translation: 该块和滑动窗平衡基于在帘线上的尖端到尖端位置中模制中间托架滑轮主体和绳索端子（或锚），每个模制对与下一个模制对适当间隔开。 当帘线在尖端之间切断时，产生线段，其中一个中间托架主体已经在一端成型/连接，并且端子已经在另一端已经模制/连接并面向相反方向。 模制的中间滑块组件提供了将中间滑架块连接到平衡弹簧，接收滑轮并支撑滑轮以旋转，将扇形绳保持在滑轮内，并且沿着平衡通道引导中间滑架组件的行进。 其端子的形状提供并有利于平衡线可以连接到窗框或组件的其它操作部分的容易性。 利用一种新颖的卡扣式滑轮对来简化平衡装配。