公开(公告)号：US3848884A

公开(公告)日：1974-11-19

申请号：US31946072

申请日：1972-12-29

Applicant: ROSS E ,  ALSOP A ,  LINES W

Inventor： LINES W ,  ALSOP A ,  ROSS E

IPC: B62B7/08 ,  B62B11/00 ,  F16K11/24

CPC classification number: B62B7/08 ,  B62B7/068 ,  B62B2205/02

Abstract: This invention is concerned with a folding four wheeled frame for a pushchair which has two front and two rear upwardly extending supports each of which carries at its lower end a wheel. The supports are pivotally connected to an upwardly extending backbone, and also connected near their lower ends to the lower end of the backbone by means of separate pivotal links. The front supports are connected near their upper ends to a first mounting adjacent to the top of the backbone by means of separate pivotal links, and the upper ends of the rear supports are pivotally connected to a second mounting on the backbone adjacent to the first mounting. The arrangement of the supports, backbone and mountings is such that the two mountings can be moved relatively to one another along the backbone whereupon the pivotal links enable the four supports to swing between a closed position nearer to the backbone and an open position further away from the backbone.

Abstract translation: 本发明涉及一种用于婴儿车的折叠四轮车架，其具有两个前部和两个后向上延伸的支撑件，每个支撑架的下端具有车轮。 支撑件枢转地连接到向上延伸的主骨架，并且还通过单独的枢转连杆在其下端附近连接到骨架的下端。 前支撑件通过单独的枢转连杆在其上端附近连接到邻近骨架顶部的第一安装件，并且后支撑件的上端枢转地连接到邻近第一安装件的骨架上的第二安装件 。 支撑件，骨架和安装件的布置使得两个安装件可以沿着主体相对移动，于是枢转连杆使得四个支撑件能够在更靠近主体的关闭位置和远离主体的打开位置之间摆动 骨干。