Power-assisted multidirectional jackhammer positioner

Abstract

A jackhammer positioner comprising a support structure displaceably or fixedly resting on the ground, a base pivotally mounted onto the support structure, and an articulated arm pivotally connected to the base carrying a jackhammer. The articulated arm comprises two pivotally interconnected arm portions. A yoke is pivotally installed at the end of the arm opposite its connection to the base. The yoke pivotally carries a jackhammer support mechanism for carrying a jackhammer, the mechanism providing the positioner with the ability to linearly translate the jackhammer. The positioner thus comprises five pivot joints and one translation joint, and can consequently be operated to take a large number of different conformations. The operative tip of a jackhammer suspended to the positioner can thereby be easily and rapidly juxtaposed to a surface which needs to be worked.

Description

FIELD OF THE INVENTION The present invention relates to tool positioners, and more particularly to a jackhammer positioner with enhanced versatility and manoeuvrability features. BACKGROUND OF THE INVENTION A jackhammer is a very heavy tool used to break concrete structures apart for performing maintenance or repair tasks thereon. It is difficult, not to say impossible, to use jackhammers other than on the ground without mechanical assistance; for instance, it would be impossible for a construction worker to manually uplift a jackhammer and to maintain it in an uplifted position, in order to apply its operative tip on an overhanging upright wall and use the jackhammer thereon. Despite this fact, jackhammers must be sometimes used on surfaces other than ground surfaces. For example, the bottom concrete surface of bridges, outdoors concrete ceilings, upright concrete walls of a given structure, are all surfaces which may require maintenance or repair interventions with a jackhammer....

AI Technical Summary

Benefits of technology

The invention also relates to a jackhammer device comprising: a jackhammer comprising a jackhammer operative tip; an articulated arm supporting said jackhammer, said arm movable between a retracted limit first position and an extended limit second position, said arm defining an inner end and an outer end; first mounting means, interconnecting said jackhammer and said arm outer end for relative movement therebetween; base means, for supporting said articulated arm spacedly over ground; second mounting means, mounting said arm inner end to said base means for free relative movement of said articulated arm relative to said base means; power means, for power biasing said articulated arm into a continuously erected posture and for maintaining said jackhammer spacedly over ground;

Problems solved by technology

It is difficult, not to say impossible, to use jackhammers other than on the ground without mechanical assistance; for instance, it would be impossible for a construction worker to manually uplift a jackhammer and to maintain it in an uplifted position, in order to apply its operative tip on an overhanging upright wall and use the jackhammer thereon.

However, existing jackhammer positioners are cumbersome, inefficient and their versatility tends to be limited.

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