Translatable hood arrangement for a medical-technical or...

Details Translatable hood arrangement for a medical-technical or... Translatable hood arrangement for a medical-technical or...

1999-01-14

2001-11-27

Warden, Jill (Department: 1743)

Chemical apparatus and process disinfecting, deodorizing, preser

Control element responsive to a sensed operating condition

C422S091000, C422S105000, C454S049000, C454S056000, C454S063000, C454S065000, C210S244000

Reexamination Certificate

active

06322754

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to a medical-technical or dental-technical work table which has a protection arrangement in the forward region of the table surface.
Such a work table is employed in a medical-technical or dental-technical laboratory, or also in medical or dental practices, in order to be able to carry out various kinds of work in a readily manipulable manner and with quality. Here, there may be involved e.g. material removing processing measures on a workpiece or model, or testing measures such as technical measurement procedures or optical examinations.
2. Discussion of the Prior Art
With a known work table for a medical- or dental-technical laboratory, described in DE 196 24 506 A1, there is provided a hood-like protection arrangement having a forward protection plate of transparent material, which is intended to protect the user from injury through chips resulting from processing in the case of material-removing processings to be carried out in the region of the protection arrangement, or also from the spreading of dust arising in the processing.
FIG. 2
of this publication shows a hood-shaped protection arrangement having a forward, transparent protection plate and a rearward protection wall, which are both held at the forward end of a carrier arm extending from the rear forwardly.
FIG. 9
of this publication shows a medical- or dental-technical work table in accordance with the state-of-the-art, with which there is present a protection arrangement formed only by means of a transparent forward plate, whereby the plate is attached, in a rearwardly obliquely upwardly extending arrangement, at its lower edge region to an attachment limb extending upwardly from the work table. This protection arrangement affords no protection function to the rear.
SUMMARY OF THE INVENTION
The object of the present invention is to so configure a medical-technical or dental-technical work table of the kind indicated in the introduction that whilst ensuring a simple configuration and/or arrangement the protection of the protection device is extended to the rear.
With the work table according to the invention in accordance with one embodiment, the protection arrangement has additionally to the protection plate a rearward protective wall-like protection arrangement part which at its upper edge forms with the protection plate a hood-like protection arrangement and preferably abuts directly or indirectly on the protection plate and thereby extends its protection not only forwardly but at least in the upper part region also to the rear. By these means, the rear part of the work table is at least partially protected from contaminants resulting from the processing. Thereby, the rearward protection arrangement part can be positioned on the work table preferably so that it abuts with its upper edge on the protection plate in a stable disposition and/or it may be retained at a carrier arm preferably so that it abuts in its upper edge region on the protection plate, whereby in both cases a hood-like construction is afforded. Within the scope of the invention, however, the rearward protection arrangement part may also, when it is retained at a carrier arm, stand up on the work table surface. It is also possible and advantageous to use a carrier arm which can be positioned into any arbitrary height position and which remains in place, so that the rearward protection arrangement part is capable also in a position raised from the work table surface of fulfilling the hood-like arrangement with the protection plate. For this purpose, the carrier arm may have a weight compensation device, or be fixable in the respective adjusted position.
With the configuration according to the invention in accordance with another embodiment, the rearward protection arrangement part is adapted to the protection plate and thereby held at the upper end region of the protection plate or arranged standing up on the table surface, so that it does not need a carrier arm for the positioning of the rearward protection arrangement part. Within the scope of the invention, the rearward protection arrangement part may be arranged hanging on the protection plate and/or it may also extend as far as the work table surface and stand on this surface.
With both configurations in accordance with the invention the forward and rearward protection arrangement parts compliment one another to form a common hood-like protection arrangement, whereby the rearward protection arrangement part has the opening for observation and the forward protection arrangement part has the protection plate for the closing of the opening. Thereby the configurations in accordance with the invention distinguish themselves by a simple manner of construction. With the configuration according to the first embodiment, this is provided in that the rearward protection arrangement part is a separate component which can be manufactured simply and in a cost favourable manner, whereby its positioning can be ensured by means of standing up on the work table surface or by means of the carrier arm likewise in simple manner.
As a result of the simple arrangements and configurations, the features in accordance with the invention can also be manufactured easily and in a cost favourable manner and can install or position the rearward protection arrangement part on the work table. A further advantage of the configuration in accordance with the invention consists in that the rearward protection arrangement part can be readily manipulably and rapidly be brought into working disposition, and again removed. By these means, the work table can be adapted simply and rapidly to various kinds of work, e.g. to work with different degrees of contamination, which enhances the usability of the work table.
Features are contained in the subclaims which lead to simple, compact, cost-favourably manufacturable and reliable constructions, whereby various features also make possible a collection of contaminant particles in the rearward protection arrangement part and thereby contribute to the cleanliness of the work table.


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