Package making – With contents treating – Vacuum or inert atmosphere
Patent
1996-07-03
1998-10-20
Hail, III, Joseph J.
Package making
With contents treating
Vacuum or inert atmosphere
B65B 3100
Patent
active
058229566
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a vacuum packaging machine having a substructure and having a cover, it being possible for the cover to be moved with respect to the substructure.
A previously known vacuum packaging machine of this generic type has a vacuum chamber for treating items to be packaged, the vacuum chamber being arranged in the region of the transition from the cover to the substructure. Said chamber comprises an upper part and a lower part, the upper part being assigned to the machine cover and the chamber lower part being assigned to the machine substructure. In said previously known machine, the cover is connected pivotably to the machine substructure with the aid of hinges. The outline of the vacuum chamber is intended to be as large as possible in order that as many items as possible can be treated simultaneously in said chamber. On the contrary, for a number of reasons, the aim is to keep the outline of the substructure of the machine as small as possible. This results in the hinges on the substructure being located close to the rear wall of the vacuum chamber. The end side of the cover is usually provided with at least one handle. The operator uses said handle to open and close the machine, and thus also the vacuum chamber.
In the case of said vacuum packaging machine, the cover of the same, when in its open position, is at an angle with respect to the upper side of the substructure, this angle being smaller than 90 degrees. It is thus difficult to gain access to the interior of the chamber lower part, in particular in the region of the rear wall of said vacuum chamber, which renders loading and unloading of the vacuum chamber more difficult.
In a fair number of machines of this generic type, a heating plate is located in the upper part of the vacuum chamber. It takes some time for said heating plate to cool down once the items in the chamber have been treated and, when the vacuum chamber is opened and the cover is then positioned obliquely and at a comparatively low level, there is a high risk of the operator burning himself on the heating plate during unloading of the vacuum chamber.
The object of the present invention is to specify a vacuum packaging machine which does not have, among others, the abovementioned disadvantages.
In the case of the vacuum packaging machine of the generic type mentioned in the introduction, this object is achieved as is defined in the characterizing part of claim 1.
Possible embodiments of the present invention are explained in more detail hereinbelow with reference to the accompanying drawings, in which:
FIG. 1 shows a front view of a first configuration of the present vacuum packaging machine, the latter being open,
FIG. 2 shows the machine from FIG. 1 in a vertical section, said section running perpendicularly with respect to the front wall of the machine,
FIG. 3 shows the machine from FIG. 1 in the abovementioned vertical section, said machine being closed,
FIG. 4 shows, in a vertical section, a detail of the machine according to FIG. 1, and
FIG. 5 shows, in a vertical section, part of another configuration of the vacuum packaging machine.
FIG. 1 shows a front view of a first configuration of the present vacuum packaging machine, the latter being open. FIG. 2 shows the machine from FIG. 1 in a vertical section, said section being perpendicular with respect to the front wall of the machine. In FIG. 3, said machine is represented in a vertical section, the machine being closed.
The vacuum packaging machine comprises a substructure 1 and a cover 2 which can be moved with respect to the substructure 1. The substructure 1 has a body 40 which is provided with feet 41. Said feet 41 are fitted on the underside of the base 42 of said body 40. The body 40 further has side walls 43, 44, 45 and 46 and a top or upper side 47. The front side wall 46 is provided with a box 48 which carries or contains the means for operating the machine.
The cover 2 is fitted on the substructure 1 such that the movement or the path of movement of the cover 2 with respect to the subst
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Landolt Bruno
Liechti Vreny
Hail III Joseph J.
Inauen Maschinen AG
Tolan Ed
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