公开(公告)号：US4508233A

公开(公告)日：1985-04-02

申请号：US479866

申请日：1983-01-18

申请人： Thomas G. Helms

发明人： Thomas G. Helms

IPC分类号： B66C23/48 ,  B66C23/26 ,  B60P1/00 ,  B65G7/08

CPC分类号： B66C23/48

摘要： A Compact Heavy Duty Lifting Crane (CHDLC) for removing and installing heavy objects such as engines and transmission from vehicles. The CHDLC incorporates a feature that allows the vertical lifting angle of the telescoping boom (40) to remain constant as the telescoping pylon cylinder (18) is raised. This feature is particularly useful for removing engines located in limited-space engine compartments such as those encountered in vans and buses. The CHDLC consists of two major assemblies: a base assembly and a portable lifting crane. When the CHDLC is used as a standard utility crane in a repair shop the crane is mounted to the base assembly. When the CHDLC is required to be mounted on a truck bed the crane is removed from the base assembly and installed on a truck pylon plate (14a) that is permanently mounted to the bed of the truck. Additionally, the CHDLC may be placed in its storage configuration. In this configuration the CHDLC occupies a horizontal area of only four square feet.

摘要翻译： PCT No.PCT / US81 / 00691 Sec。 371日期1983年1月18日 102（e）1983年1月18日日期PCT提交1981年5月21日。紧凑型重型起重机（CHDLC），用于从车辆上拆卸和安装重物，如发动机和变速箱。 CHDLC结合了一个特征，允许伸缩臂（40）的垂直提升角度随着伸缩式塔架（18）升高而保持恒定。 该特征对于去除位于有限空间的发动机舱中的发动机特别有用，例如在货车和公共汽车中遇到的那些。 CHDLC由两个主要组件组成：底座组件和便携式起重机。 当CHDLC用作维修车间的标准公用起重机时，起重机安装在基座组件上。 当CHDLC需要安装在卡车厢上时，起重机从基座组件上拆下并安装在永久安装在卡车床上的卡车吊架板（14a）上。 另外，CHDLC可以被放置在其存储配置中。 在该配置中，CHDLC占据仅四平方英尺的水平面积。