FR2755389A1 - Cutter for scarifying types of bread - Google Patents

Abstract

The cutter consists of a sharp blade (2), which is fixed at the curved end of a handle (1). The blade is fitted into the curved part (1a) of the handle and is rigidly fixed by means of a screw and wing nut (3 & 4), which are used to allow the blade to be easily replaced or turned. The handle is formed to be split into two separate branches (1b & 1c), which are separated by a small distance. The blade fits into the gap between the two branches, which are curved to apply the required curvature to the blade. The handle is manufactured from a metallic, stainless steel, sheet, which is cut and folded to form the two leaves.

Description

KNIFE TO SCARIFY THE PATONS
The present invention relates to a knife intended for making notches on the surface of dough pieces or other similar products before they are cooked in an oven.

These shallow cuts allow a consistent lifting of the surface of the bread during baking.

After using a simple cutter to execute these cuts, the baker used a razor blade.

These blades are usually inserted and held in a handle in different ways.

The PACHECO SORNICHERO FR.A.2.438.426 patent concerns a flat handle made up of two identical cheeks assembled together to hold the cutting blade.

The patent BOUTON FR.A.2.624.044 proposes a bent handle in obtuse angle so as to facilitate its use.

The patent DUMONT FR.A.2.669.508 describes a scarification device comprising a cap intended to cover the blade.

The patent INJECTOID FR.A.2.717.042 protects a scarifier comprising a curved support part of the cutting blade allowing the rotation of the latter from 1800.

These various tools or scarifiers commonly use ordinary razor blades which have the advantage of being inexpensive and therefore consumable.

The tools using these blades make it possible to use at least two angles of the cutting edges successively used.

However, whatever the tool used, the very thin blade is fragile so that it has happened to find fragments of razor blades in the bread.

This accident led the D.D.A.S.S. a warning about the use of razor blades for scarifying breads. A circular N "DGS / SDI.B / N 8 of September 17, 1990 invites professionals to abandon the use of razor blades in favor of sharp knife-type instruments, comprising a resistant blade securely attached to a handle.

The knife according to the invention proposes to overcome the drawbacks of the prior art mentioned above and to comply with the recommendations of the aforementioned circular.

The knife is characterized in that the sharp blade inserted into the curved part of the handle is firmly fixed by means allowing, the replacement and / or the reversal of direction of the blade.

Advantageously, the handle consists of two sheets forming cheeks, of small thickness, separated from each other by a small space, part of which has a convexly curved developable surface intended to insert the blade.

According to a preferred manufacturing method, the knife is obtained from the cutting of a metal blank which is folded along a first longitudinal axis allowing the production of the two sheets forming cheeks separated from each other by a small space, then folded along a second transverse axis allowing the obtaining of a curved part.

The knife according to the invention therefore makes it possible to use the four angles of the two cutting edges of a blade of specific manufacture respecting the Decree of January 13, 1976 relating to materials and objects made of stainless steel in contact with foodstuffs (Official Journal of January 31, 1976).

According to another characteristic, the blade has a hole in its center allowing it to be fixed in the curved part of the handle.

Preferably the blade is fixed in the curved part of the handle by a through bolt, the head of the screw of which is immobilized in rotation relative to one of the cheeks and the nut of which allows manual tightening of the other cheek. so as to keep the blade tight between the two curved cheeks of the handle.

Advantageously, the two cheeks in the curved part of the handle are joined together in the upper part so as to position the blade held by the bolt.

According to a preferred embodiment, the blade is stopped in rotation by the longitudinal fold of the knife and kept in rotation by simple clamping between the two curved cheeks of the handle.

According to an alternative embodiment, the handle has a concave curved developable surface to facilitate scarification by a left-handed person.

Thus the knife according to the invention having a concave curved part allows the fixing of the cutting blade and its reversal of direction so as to easily use the four angles of the two cutting edges.

The knife according to the invention overcomes the drawbacks of the prior art and in particular avoids the risks associated with the use of a razor blade, it therefore meets the recommendations of the Directorate General for Competition, Consumption and Repression frauds. It is economical, using the four angles of the two cutting edges by simply inverting a resistant blade and respecting the legislation in force.

Other characteristics and advantages will emerge more clearly from the following description of an embodiment of the present invention given without limitation and with reference to the appended drawings in which:
Figure 1 is a schematic perspective view of the knife according to the invention.

Figure 2 is a schematic plan view in partial section of the knife.

Figure 3 shows a metal blank before folding.

There is shown in Figure 1 in a schematic perspective view of the knife according to the invention.

In Figure 2 is shown in partial section AA the curved part of the handle.

Figure 3 shows on the metal blank (8) the longitudinal axis (6) of folding and the transverse axis (7) of folding.

The following description is made with reference to these three figures.

The handle (1) is made using a metal blank (8) made of stainless steel in accordance with the decree of January 13, 1976 relating to materials and objects made of stainless steel in contact with foodstuffs (official journal of January 31, 1976 ).

The thickness of the metal blank (8) is approximately 8/10 mm folded along a longitudinal axis (6) of symmetry allowing the cheeks (lb - lc) to be produced.

The curved part (la) of the handle is obtained by folding said handle along a transverse axis (7).

The part (la) of the handle is curved convexly usable by right-handed bakers, we show in thin dashed lines the curve (nest) made concave for scarification performed by a left-handed baker.

The blade (2) is inserted between the cheeks (lb-lc) of the curved part (la) of the handle (1). A hole made in the center of the blade (2) keeps it in place with a bolt (34). The head (5) of the screw (3) is immobilized in rotation relative to the cheek (lb). A wing nut (4) is used to tighten the cheeks (îb-îc) - blade (2) assembly. This simple manual tightening is enough to avoid rotation of the blade (2) between the cheeks (lb-lc). According to a preferential manufacturing method, the bolt (3-4) will be made of plastic allowing a better coefficient of friction on the cheeks (lb-1c) made of stainless steel. The blade is positioned by means of the screw (3) and by the upper cavity formed by folding the metal blank (8) along its longitudinal axis (6).

Another embodiment of the handle can be envisaged for example, stamping of the two cheeks, then welding of the upper part. This is of course only a variant coming within the scope of the present invention.

The knife according to the invention makes it possible to use the four angles successively by turning the blade along a vertical axis using the same cutting edge then along a horizontal axis to implement the second cutting edge.

Claims (9)

1) Knife for scarifying the dough pieces comprising a sharp blade (2) fixed to the curved end of a handle (1) characterized in that the sharp blade (2) inserted in the curved part (la) of the handle is firmly fixed by means (3-4) allowing replacement and / or reversal of direction of the blade (2). 2) Knife for scarifying the dough pieces according to claim 1 characterized in that the handle (1) consists of two plates (lb-lc) forming cheeks, of small thickness, separated from each other by a small space of which a part (the) has a convexly curved developable surface for inserting the blade (2). 3) Knife for scarifying the dough pieces according to claim 2 characterized in that the plates constituting the handle (1) are two metallic sheets of stainless steel. 4) Knife for scarifying the dough pieces according to claim 3 characterized in that the handle (1) is obtained by cutting a metal blank and folding said blank allowing the handle (1) provided with two metal sheets and a curved part (la). S) Knife for scarifying the dough pieces according to one of claims 1 or 2 characterized in that the blade (2) has two symmetrical cutting edges so as to have two angles by cutting edge successively put into service. 6) Knife to scarify the dough pieces according to claim 1 characterized in that the blade (2) has in its center a hole allowing the passage of a fixing means (3) in the curved part (la) of the handle. 7) Knife to scarify the dough pieces according to any one of claims 1 or 2 characterized in that the blade (2) is fixed in the curved part (la) of the handle by a bolt (3-4) through, the head (5) of the screw (3) is immobilized in rotation relative to one of the cheeks (lb) and whose nut (4) allows manual tightening of the other cheek (lc) so as to keep the blade (2) between the two curved cheeks (lblc) of the handle (1). 8) Knife for scarifying the dough pieces according to one of claims 6 or 7 characterized in that the two cheeks (lb-1c) in the curved part (la) of the handle are joined together in the upper part so as to position the blade (2) held by the bolt. 9) Knife for scarifying the dough pieces according to claim 8 characterized in that the blade (2) is kept in rotation by simple clamping between the two curved cheeks (lblc) of the handle (1). 10) Knife for scarifying the dough pieces according to claim 1 characterized in that the handle (1) has a curved developable surface (ld) concavely to facilitate scarification by a left-handed operator.