Underlift assembly tow trucks
AssigneeJerr-Dan Corporation
InventorJames J. Bartel
Life of this patent
Estimating the term…
Abstract
An improved underlift assembly is provided for attachment to a vehicle. The improved underlift assembly comprises a support arm coupled to the vehicle. A base is coupled to an end of the support arm, a boom base is pivotally attached to the base at a first pivot point and a boom is pivotally attached to the boom base at a second pivot point. A first actuator is coupled to the support arm and the boom base. The operation of the first actuator pivots the boom base with respect to the support arm. A second actuator is coupled to the boom base and the boom. The operation of the second actuator pivots the boom with respect to the boom base. The first actuator is used to position the boom during lifting operation, and the second actuator is used to position the boom into a folded rest position.
Claims19
An underlift assembly for attachment to a vehicle comprising:
- a support arm coupled to the vehicle;
- a base coupled at a first end to the support arm;
- a boom base pivotally attached to the base at a first pivot point, the first pivot point located adjacent to a second end of the base opposite to the first end of the base, and adjacent to a first end of the boom base;
- the boom base having a second end located nearer to the first end of the base than the first end of the boom base;
- a boom pivotally attached to the boom base at a second pivot point located further from the first end of the boom base than the first pivot point;
- a first actuator coupled to the support arm and the boom base, wherein the operation of the first actuator pivots the boom base with respect to the support arm;
- a second actuator coupled to the boom base and the boom, wherein the operation of the second actuator pivots the boom with respect to the boom base
- attachments coupled to a distal end of the boom;
- wherein the attachments coupled to the distal end of the boom provide connection to objects to be lifted.
A tow truck for lifting a part of a vehicle and towing the vehicle comprising:
- a tow truck chassis including spaced frame members and a deck above said frame members, and said tow truck chassis having a forward end and a rearward end including a rear axle,
- a support arm coupled to the tow truck;
- a base coupled at a first end to the support arm;
- a boom base pivotally attached to the base at a first pivot point;
- the first pivot point located adjacent to a second end of the base opposite to the first end of the base, and adjacent to a first end of the boom base;
- the boom base having a second end located nearer to the first end of the base than the first end of the boom base;
- a boom pivotally attached to the boom base at a second pivot point located further from the first end of the boom base than the first pivot point;
- a first actuator coupled to the support arm and the boom base, wherein the operation of the first actuator pivots the boom base with respect to the support arm;
- a second actuator coupled to the boom base and the boom, wherein the operation of the second actuator pivots the boom with respect to the boom base;
- attachments coupled to the boom for engaging a vehicle for lifting a part thereof.
Dependencies are inferred from the claim text.