公开(公告)号：WO1985000331A1

公开(公告)日：1985-01-31

申请号：PCT/AU1984000132

申请日：1984-07-12

Applicant: HOLLAND HITCH (AUST.) LTD. ,  WILSON, James, Allan ,  ELLIS, James, Randell

Inventor： HOLLAND HITCH (AUST.) LTD.

IPC: B62D53/08

CPC classification number: B62D53/0821

Abstract: A fifth wheel assembly (10) comprising a lower support structure (12) adapted to be mounted on the chassis of a prime mover and an upper support plate (13) upon which a trailer is to be supported, and between which a cam operated linkage mechanism is incorporated which has a pair of spaced apart main link assemblies (14) pivotally attached at one end (19) to the lower support structure and pivotally attached adjacent their other ends (18) to the upper support plate. Cam members (15) are pivotally supported on the link assemblies with their cam surfaces in contact with the lower support structure, whereby rotation of the cam members pivots said link assemblies upwardly about their pivotal connections to said lower support structure to thereby raise the upper support plate attached to the other ends of said link assemblies. A pair of spaced apart strut assemblies (20) are also provided pivotally connected at one end (21) to respective ones of said main link assemblies and detachably connected at their other ends, to the lower support structure via a pin (28) extending through a number of alternative arrangements of aligned holes (23, 24, 25, 26, 27), and such as to hold said upper support plate relative to said lower support structure in one of a number of alternative positions.

Abstract translation: 第五轮组件（10）包括适于安装在原动机的底架上的下支撑结构（12）和上支撑板（13），拖车将被支撑在所述上支撑板（13）上，并且其间具有凸轮操作连杆 其具有一对间隔开的主连杆组件（14），所述主连杆组件（14）在一端（19）枢转地附接到所述下支撑结构并且枢转地附接到所述另一端（18）附近到所述上支撑板。 凸轮构件（15）枢转地支撑在连杆组件上，其凸轮表面与下支撑结构接触，由此凸轮构件的旋转使所述连杆组件向上靠近其与所述下支撑结构的枢转连接件向上枢转，从而使上支撑件 板连接到所述连杆组件的另一端。 一对间隔开的支柱组件（20）也被设置为在一端（21）枢转地连接到相应的一个主连杆组件，并且在其另一端可拆卸地连接到下支撑结构，该销（28）延伸穿过 多个对准的孔（23,24,25,26,27）的替代布置，并且诸如在多个替代位置之一中相对于所述下支撑结构保持所述上支撑板。