Vibrating device for processing a floor layer

Details Vibrating device for processing a floor layer Vibrating device for processing a floor layer

2000-02-04

2001-09-25

Mackey, James P. (Department: 1722)

Plastic article or earthenware shaping or treating: apparatus

Vibrating means including mechanical movement or power means

C404S098000, C404S114000, C425S470000

Reexamination Certificate

active

06293780

ABSTRACT:

BACKGROUND OF THE INVENTION
This invention relates to a vibrating device for processing a floor layer, more particularly a so-called vibrating beam which comprises a vibrating unit with a vibrating board and a vibrating mechanism cooperating with this vibrating board, and a handle which is attached to the vibrating unit.
BRIEF SUMMARY OF THE INVENTION
Such vibrating devices are applied for spreading and smoothening of hardenable materials when forming a floor layer, more particularly materials such as concrete and similar.
The invention aims at a vibrating device of the above-mentioned type whereby the handle can be easily adjusted under a random inclination and thereby be adapted to the user. Hereby, the invention also aims at a coupling between the handle and the other components which, on one hand, is rapidly adjustable but, on the other hand, is very resistive against vibrations, in such a manner that the handle, once that it is adjusted in the desired position, will not become loose during the working of the vibrating device.
To this aim, the handle is attached to the vibrating unit by means of at least one clamping coupling which, in uncoupled position, allows to adjust the inclination of the handle, whereby this clamping coupling consists of, on one hand, at least two connecting elements with conical parts fitting into each other, which are connected to the handle and to the vibrating unit, respectively, and, on the other hand, of tensioning means with which the aforementioned elements can be tensioned against each other axially with their conical parts.
The invention has as an additional object to provide a vibrating device of the aforementioned type whereby the handle forms as little an obstruction as possible and requires little additional space during transport or storage of the vibrating device.
According to the invention, this aim is achieved in that the handle comprises two sticks which each are connected to the vibrating unit by means of a clamping coupling, as described heretofore, whereby the clamping coupling, in uncoupled position, allows to pivot the stick, at least between a first position in which it is directed inclined upward away from the vibrating unit when the vibrating board rests upon the floor layer to be processed, and a second position in which it extends sideward.
“Upward” has to be regarded in respect to the vibrating device as it is placed upon the floor layer to be processed, whereas “sideward” also has to be regarded in respect to the vibrating unit. Thus, inclined upward is in the direction of the operator who moves the vibrating unit along, for example, pulls it along while walking backward. The vibrating board extends with its longitudinal direction perpendicular to the handle and, thus, is directed with its both extremities sidewards.
The second position preferably is the position in which the stick is situated up to practically upon or alongside the vibrating board.
Preferably, the hinge axes of both hinge couplings are directed inclined upon the longitudinal direction of the vibrating board. The stick, which is attached with a hinge coupling, itself preferably is also directed inclined in respect to the hinge axis of this hinge coupling.
Thereby, the hinge axes may be directed horizontal, or even inclined, in respect to the horizontal plane, this is the plane of the underside of the vibrating board.


REFERENCES:
patent: 819621 (1957-09-01), None

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