DE1739919U - CHAMBER CUTTER FOR SHAVING CUTS, IN PARTICULAR FOR DRY SHAVERS. - Google Patents

Description

! A.D02 918H.1.57

Utility model application A 6385/69 Gm

Applicant: Richard Antretter, Stockdorf near Munich

Comb shaving head for razor cuts, in particular for mohawk razors

Comb shaving heads are known which have an outer fixed knife comb and an inner reciprocating knife comb, the knife combs being provided with slots or cutting gaps. In the known comb cutter heads, the outer and inner cutter combs have so far been provided with slots or cutting gaps ■ which also extend over part of the side wall of the cutter combs. So far, the two knife combs have been designed to be closed at the top and provided with a guide or reinforcement rib in their middle. In order to achieve a vibration-free operation of the shearing device, the inner knife comb must be made as a mass that moves back and forth, if possible from a very thin material. So that there is still enough stability in this version, previous inside knife combs were built as tubular or profile hollow bodies. This inevitably resulted in the disadvantage that a gradually increasing distance is formed between the cutting surfaces at the bending radius at the transition of the shear slots into the side wall of the inner ridge, through which then at this point

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the hair is not cut off, but only back and forth from the cutting bars accompanied by an unpleasant skin irritation being dragged here. Since only a little can be sanded due to the low material thickness, the ideal condition is a Reaching a right-angled cutting edge made impossible. Known embodiments were able to use the cutting effect Only improve the chamfering of the cutting ridges at the bending radius a little.

The inflation avoids the disadvantages mentioned in the simplest way Partly in that the inner knife comb is U-shaped and the free ends of the two legs as cutting edges with sharp, approximately right-angled cutting edges are formed on the long sides, which are resilient against the outer knife comb issue. The angle formed by the outer surfaces of the free ends of the legs of the inner knife comb is advantageous Limit the cutting edges, with the upper cutting surface forming, less than 120 °.

The free ends of the legs of the inner knife comb are reinforced, preferably with an inwardly protruding tab or approach formed so that the production of the cutting edges by grinding does not cause any difficulties. To the Guide the inner knife comb and to keep the distance from the side walls of the outer knife comb is the inner knife comb on the outer surfaces of its two legs wart-like approaches. These have that special one The advantage is that the friction during the movement of the inner cutter comb is significantly reduced compared to the outer cutter comb will. The inner knife comb is counteracted by a leaf spring

pressed the outer knife comb. Here, the leaf spring is arranged near the bottom of the inner knife comb and on the end of which is loosely attached. The drive lever engages through an opening in the inner and outer knife combs and rests against the leaf spring in the inner knife comb, so that the desired resilient pressure of the inner knife comb against the outer knife comb is achieved in the simplest possible way.

The inner and outer knife combs are advantageously designed in this way, for example with attachments and recesses provided that the introduction of the inner knife comb is always only possible from a certain side. Through this it is achieved that a grinding in or an exact adaptation of the two knife combs with regard to the interaction their cutting, is always present.

In FIGS. 1-8, the inflation is explained using an exemplary embodiment.

FIG. 1 shows, in side view and in section, a comb shaving head.

Figure 2 shows a cross section of the comb shear head. In Figure 3, a further embodiment is partially in view and shown partially in section.

FIG. 4 shows the design of the inner knife comb in cross section.

FIG. 5 shows a view of the inner knife comb from below. FIG. 6 shows a view of the inner knife comb from above. In Figure 7, a leaf spring is shown, which the

press the inner knife comb against the outer knife comb. FIG. 8 shows the formation of a cutting edge of the inner knife comb.

The comb shaving head "consists of an outer stationary blades 1, and is formed like U-an inner Mn and forth movement stationary blades 2, of. The free ends of the two legs of the U-shaped blade comb 2 form cutting edges 3 which is opposite the cutting edge 4 of the outer diameter comb The outer knife comb 1 is designed to be closed at the top and is provided with cutting gaps 9.

As can be seen in particular from FIGS. 2, 4 and 8, the free ends of the U-shaped inner knife comb 2 are reinforced or formed with inwardly projecting lugs 5. So that the cut hair can fall freely downwards, run the boundary surfaces 6 of the cutting gaps of the inner knife comb obliquely downwards.

On the two side surfaces of the legs of the inner knife comb 2, wart-like lugs 7 and 8 are provided, with whose help the inner knife comb 2 in the outer knife comb 1 is guided at a distance. The inner knife comb 2 is pressed against the cutting edges 4 of the outer knife comb by a leaf spring 10 1 pressed. The leaf spring 10 is arranged in the inner knife comb directly above its bottom. she is provided at both ends with tabs 11, 12, which over the side edges of the inner knife comb or over corresponding Recesses 13, 14 protrude. The base or support 15 of the outer knife comb has an opening 16 and the base 17

of the inner knife comb an opening 18 through which the drive lever 19 passes through and presses against the leaf spring 10. As a result, the inner knife comb is against the outer knife comb pressed on.

FIG. 7 shows again the leaf spring 10 individually, which is provided with a slot 20 at its free ends, γ / o through it possible to squeeze it together so that it can be inserted into the inner knife comb.

The bottom 17 of the inner knife comb can also - as in FIG. 3 shows - be provided with a tab 21 at its front bottom end, the corresponding elevations or stops 22 are assigned to the bottom 15 of the outer knife comb. This makes it possible to use the inner knife comb only from a "specific" Insert the side out, i.e. only from the left, into the outer knife comb, so that the both knife combs is achieved.

Claims (9)

Ρ.Α.002818 * -Ί.1.57 Protection claims 1. Comb shaving head for razors with an outer fixed and an inner reciprocating knife comb, characterized in that the inner knife comb is U-shaped and the free ends of the "two legs are designed as cutting edges that are resilient against the outer knife comb issue. 2. Comb shaving head according to claim 1, characterized in that the free ends of the legs of the inner cutter comb are reinforced, are preferably designed with inwardly protruding approaches. 3. Comb shaving head according to claim 1, characterized in that the angle formed by the outer surfaces of the free ends of the Legs of the inner knife comb, which delimit the cutting edges, form with the upper visual cutting surface, smaller than Is 120 °. 4. Comb shaving head according to claim 1, characterized in that the moving inner U-shaped knife comb with approximately right-angled Cutting edges is formed. 5. Comb shaving head according to claim 1, characterized in that the moving U-shaped knife comb has acute-angled cutting edges having. -. 6th 6. Comb shaving head according to claims 1-3, characterized in that that the boundary surfaces of the cutting gaps run obliquely downwards. 7. comb shaving head according to claim 1, characterized in that the inner knife comb has wart-like extensions on the outer surface of its two legs, which are used to guide it on the serve outer knife comb and ensure a distance between the "two knife combs. 8. comb shaving head according to claim 1, characterized in that a leaf spring is arranged on the inner knife comb against which, in particular through a recess at the bottom of the inner one Knife comb through, the drive socket rests. 9. comb shaving head according to claim 1, characterized in that the inner knife comb and the outer knife comb are designed in such a way, for example have lugs and recesses, that the introduction of the inner knife comb is only possible from a certain side.