首页> 外国专利> MOBILE CRANE TOWABLE BY A PICKUP TRUCK

MOBILE CRANE TOWABLE BY A PICKUP TRUCK

机译:皮卡车牵引的移动式起重机

摘要

In the present invention, there is provided a mobile crane forhoisting movable articles and for being towed to and from an articlehoisting site behind a pickup truck having a hitch attachment. The mobilecrane comprises a frame having a front end, a rear end, a pair of frontwheels and a pair of rear wheels. The mobile crane also has a mastextending vertically from the frame and a boom support bracket affixed tothe mast. A telescopic boom having a far end and a near end is movablycantilevered in the boom support bracket. A tow bar is removablyconnected to the far end of the boom. The tow bar has a hook-up membermounted thereon and is connectable to the hitch attachment of the pickuptruck. A double-acting hydraulic cylinder is connected between the boomsupport bracket and the boom for raising the front wheels off the groundwhen the hook-up member is connected to the hitch attachment. The framehas lug plates affixed to the front end thereof for optionally retainingrigging between the boom and the frame. Thus, when the hook-up memberis connected to the hitch attachment and when the front wheels are liftedoff the ground, the front end of the frame is securable in the raised positionto the boom of the crane, whereby the mobile crane is safely towed behindthe pickup truck.
机译:在本发明中,提供了一种用于吊起可移动物品并用于拖曳物品带有挂钩附件的皮卡车后面的起重站点。手机起重机包括具有前端,后端,一对前部的框架轮和一对后轮。移动式起重机还配有桅杆从框架垂直延伸,并固定有臂架支撑支架桅杆。具有远端和近端的伸缩臂可移动悬臂在动臂支撑架中。拖杆可拆卸连接到吊杆的远端。牵引杆具有挂钩部件安装在其上并可连接至拾音器的挂钩附件卡车。动臂之间连接有一个双作用液压缸支撑架和用于将前轮抬离地面的动臂当挂钩部件连接至挂钩附件时。框架具有固定在其前端的凸耳板,用于可选地固定在动臂和框架之间进行索具安装。因此,当挂钩成员连接到挂钩附件上,并且前轮抬起时离开地面时,框架的前端可以固定在抬起位置到起重机的吊臂,从而将移动式起重机安全地拖到后面皮卡车。

著录项

  • 公开/公告号CA2209399A1

    专利类型

  • 公开/公告日1998-12-30

    原文格式PDF

  • 申请/专利权人 POITRAS HERMEL G.;

    申请/专利号CA19972209399

  • 发明设计人 POITRAS HERMEL G.;

    申请日1997-06-30

  • 分类号B66C23/44;B60P3/28;

  • 国家 CA

  • 入库时间 2022-08-22 02:24:03

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