公开(公告)号：US4423685A

公开(公告)日：1984-01-03

申请号：US288482

申请日：1981-07-30

Applicant: Wilhelm Kerckhoff

Inventor： Wilhelm Kerckhoff

IPC: B61B3/02 ,  B66C11/06 ,  E05F15/14 ,  B61F9/00 ,  B61B13/04 ,  E05D13/02

CPC classification number: B61B3/02 ,  B66C11/06 ,  B66C7/02 ,  E05F15/635 ,  E05Y2201/684 ,  E05Y2800/266 ,  Y10T16/364 ,  Y10T16/3825 ,  Y10T16/3837

Abstract: A novel crane trolley has four guiding pulleys lying on opposed upper and lower guiding surfaces, arranged diagonally to eliminate the need for having eight guiding pulleys. On each side of the trolley are upper and lower guiding pulleys, with the lower in front on one side and the upper in front on the other side. The pulleys may be mounted under spring tension. Two such trolleys may be hinged together to support heavy loads.

Abstract translation: 一台新型起重机手推车有四个导向滑轮，位于相对的上下导向表面上，对角线设置，以避免需要有八个导向滑轮。 在手推车的每一侧都有上下导向滑轮，一侧是前面的下部，另一边是前面的上部。 滑轮可以安装在弹簧张力下。 两个这样的手推车可以铰接在一起以支撑重载。