Agitating – Rubber or heavy plastic working – With specified discharge means
Patent
1989-03-07
1990-11-06
Jenkins, Robert W.
Agitating
Rubber or heavy plastic working
With specified discharge means
366189, B28C 716
Patent
active
049681494
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention relates to a kneader for dough-like material, in particular for bread dough.
Since the beginning of the century the use of arduous manual kneading operation have progressively disappeared owing to the increasing mechanization of kneaders.
Indeed, a certain number of mechanical kneaders exist in the art which are of the type comprising a frame carrying a working vat in which plunges a dough working tool, this working tool being, for example, fixed on a tool support head which is itself carried by the frame.
Principally two types of kneaders exist, one termed a rotating vat type in which the vat is driven in rotation relative to the working tool which is fixed, and the other termed a rotating tool type in which the tool rotates relative to the vat which is fixed.
However, whatever the type of kneader, there remains a problem which resides in the emptying of the vat of the kneader. Indeed, there are at present two types of solutions for emptying a kneader vat. These solutions consist on the one hand of manually emptying the vat, i.e. the user extracts the dough from the vat of the kneader manually, and on the other hand, of mechanically emptying the vat which is achieved through the medium of means for turning over the vat.
The manual solution increases in difficulty with an increase in the size of the dough.
Moreover, the turning over means, which are, for example, in the form of raising arms, are relatively space-consuming, of high cost, awkward to use and therefore require very large investments in equipment and premises.
SUMMARY OF THE INVENTION
The object of the invention is to solve these problems by proposing a kneader equipped with means for emptying the vat which are simple, reliable, of low cost and permit the relatively easy and rapid emptying of this vat while working the dough and preparing it for subsequent treatments.
For this purpose, the invention provides a kneader for dough-like material, in particular for bread dough, of the type comprising a vat having an open upper part and means for emptying said vat, characterized in that said emptying means comprise at least one dough deflector a part of which extends, in the active position, into the vat and is adapted for emptying the vat by a relative displacement of the vat, the dough and the deflector.
According to a aspect of the invention, the deflector comprises a first end portion adapted to remove the dough in the bottom of the vat, an intermediate portion adapted to raise the removed dough toward the upper part of the vat and a second end portion adapted to eject the dough toward the exterior of the vat.
According to yet another aspect of the invention, the deflector comprises a blade constituting a scraper adapted to cooperate with the inner wall of the vat for removing and raising the dough.
BRIEF DESCRIPTION OF THE DRAWINGS
A better understanding of the invention will be had with the aid of the following description, given solely by way of example with reference to the accompanying drawings, in which:
FIG. 1 represents a in perspective view of a kneader according to the invention, the different elements which are part of this kneader being shown in the active position;
FIG. 2 represents a perspective view of the kneader according to the invention, the support head of the working tool being represented in the raised position and the deflector in the withdrawn position;
FIG. 3 represents a top view of the kneader represented in FIG. 1, the safety screen not being represented;
FIG. 4 represents a perspective view of a deflector which is part of a kneader according to the invention;
FIG. 5 represents another perspective view of the deflector shown in FIG. 4;
FIG. 6 represents a view in section taken along line VI--VI of FIG. 5;
FIG. 7 represents a view in section taken along line VII--VII of FIG. 5;
FIG. 8 represents a perspective view with parts cut away, of a kneader according to the invention;
FIG. 9 represents a top view of a deflector which is part of a kneader according to the in
REFERENCES:
patent: 2137558 (1938-11-01), Aeschbach
patent: 4765746 (1988-08-01), Puig
Loiselet Michel
Musseau Joel
Dito-Sama
Jenkins Robert W.
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