DE202013005918U1 - Safety razor with several razor blades - Google Patents

Abstract

Safety razor having two or more double-edged razor blades (1, 1`), preferably standard razor blades, which are mounted one above the other and in each case by a spacer (24) spaced apart in a bent state, characterized in that the razor blades (1, 1 ') are bent in such a way in that the cutting edges (2, 2 ') on both sides form an angle α of at least 40 ° with respect to a horizontal (41).

Description

The present invention relates to a safety razor with two or more double-edged razor blades, preferably standard razor blades, which are mounted one above the other and in each case by a spacer spaced apart in a bent state.

Two-piece razor heads for standard razor blades with two cutting edges are known. These razor heads usually consist of a planer cover and a planer base. The intermediate standard blade is bent only slightly. The cutting edges are slightly raised and slightly behind the leading edge. In favor of a shave that is as gentle as possible, the planing head is hereby guided at an angle in order to create an optimum angle of attack between the cutting edge and the skin surface.

In addition, the above-mentioned razor from the prior art are known and, for example, in DE 470 522 described. After that, the razor has two double-edged blades of equal width, the upper razor blade is displaceable relative to the lower, so that the cutting edges are offset from each other. In order to provide the desired angle of shaving for the shaving, the razor blades must be moved against each other, making two of the cutting edges of the razor blades are suitable for shaving. In this setting, however, the opposite cutting edges are useless for a shave, since they are not arranged in the required angle of attack. If these pages are to be used for a shave, first the upper razor blade must be moved in the other direction and fixed there.

Moving and re-fixing the razor blade is cumbersome in practice and not possible in the required precision, since the cutting edges are usually skewed to each other after moving and therefore not in a plane, so the shave no longer optimal and without the risk can be carried out by cutting injuries.

Another system with multiple razor blades is off DE 1 036 712 known, according to which the razor blades are connected by a flexible spacer inseparable. Thus, both blades have the required angle of attack on both sides, the upper of the two blades is made narrower than the lower, so disadvantageously not two identical standard blades are used. Furthermore, due to the permanent connection, both blades must be exchanged even if only the lower of the two is worn out, which, by design, performs the first cut and therefore wears out relatively quickly.

Also known are so-called system razors, which are equipped on one side with two or more blades. Disposable heads are placed on a handle system. Such system razors are anything but resource-saving and also relatively expensive to buy.

On this basis, it is the object of the present invention to overcome the aforementioned disadvantages and to provide a safety razor, which combines the advantages of a multi-blade system with cost and resource-saving razor shaving for standard razor blades.

This object is achieved by the safety razor according to claim 1, which according to the invention provides that the razor blades are bent such that the cutting edges form an angle α of at least 40 ° relative to a horizontal on both sides. Compared to known razor blades, the razor blades are much more curved. In particular, by this comparatively stronger convex curvature of the standard razor blades, the user with the razor according to the invention with both blades simultaneously and shave both sides. According to a preferred embodiment of the invention, the angle α is 40 ° to 50 °, preferably 40 ° to 45 °. As a result, the optimum angle can be selected and adjusted accordingly.

Further preferred embodiments are described below and in the subclaims.

Preferably, the cutting edges lie on both sides of the safety razor each on a plane which are aligned parallel to each other and intersect the horizontal substantially perpendicular. This embodiment is of great importance for the shaving, since in this way both cutting edge planes lie substantially in line with the leading edge of the safety razor, thus enabling a gentle shaving.

According to a further preferred embodiment, it is provided that the safety razor is substantially formed in three pieces and has a planing cover with a plurality of Justierzapfen and a threaded pin and a planer base, between which both the razor blades and the spacers are held, wherein the Justierzapfen and the threaded pin the blades , which passes through spacers and the planer base. The individual components of such a construction are easy to manufacture and without precision equipment together to a functioning razor head assemble. For this purpose, preferably, the threaded pin is connectable to a handle, whereby the distance between planing cover and planer base is selectable, so that the angle α is infinitely adjustable between a minimum angle α _min and a maximum angle α _max . Preferably, the handle is at least partially made of a flexible material.

The spacer is designed arcuate in cross-section according to a preferred embodiment of the invention and has a curved outer surface and an identical or almost identical curved inner surface, both of which form a contact surface for a razor blade. The planer cover also has a curved inner surface corresponding to the curvature of the outer surface of the spacer. The planing base has holding webs for the attachment of a razor blade whose outer surfaces are convex. Consequently, all bending-relevant radii are coordinated so that the razor blades can bend evenly in the required thickness. In addition, the planing base preferably has two leading edges, each having a small distance of up to 0.5 mm from the cutting edge planes.

Preferably, the planing cover, the spacer and / or the planer base are produced in the casting process, in particular in die-cast zinc.

A concrete embodiment of the invention will be explained below with reference to the figures. Showing:

1 a standard razor blade,

2a , b: each an exploded view of a razor head and

3a , b: the cross section of a safety razor.

In the 1 shown standard razor blade 1 has developed in recent decades as a preferred blade for razor and has a length L of 34 mm, a width B of 22 mm and a thickness of 0.1 mm. On the long sides are each a cutting edge 2 . 2 ' trained and in the middle are in the razor blade 1 two openings 3 . 3 ' for performing alignment pin and a central recess 3 '' incorporated to perform a threaded pin.

The 2a , b show a concrete embodiment of a Rasierhobelkopfes 20 , which is essentially a planer cover 21 with the adjusting pin 22 . 22 ' and the threaded stem 23 , a spacer 24 and a planer base 25 has. The planing cover 21 consists of a channel-shaped longitudinal profile and is on the outside 26 convexly curved. The inside 27 is as a contact surface for a razor blade 1 trained and also bent.

The spacer 24 has an outside 28 and an inside 29 on, according to the area 27 bent and also as a contact surface for a razor blade 1 . 1' are formed. The planer lower part 25 is on the opposite side of the razor blade 201 flattened and points to the razor blade 1 . 1' facing side two retaining webs 202 . 203 each with convex contact surfaces 204 . 204 ' for the razor blade 1' on. Laterally are on the planer base 201 leading edge 205 . 205 ' designed for contact with the skin during shaving.

When assembling the safety razor, the procedure is based on the open sandwich design, ie turning the razor blade upside down is done with a standard blade 1 on the underside of the planer cover 21 placed in such a way that they from the Justierzapfen 22 . 22 ' and the threaded stem 23 is recorded in the middle. Thereafter, with the convex side first the spacer 24 and then another standard blade 1' inserted as described above. Finally, the planer base follows 25 with the leading edges 205 . 205 ' that form the lateral conclusion. To fix the said parts of the threaded pin 23 with a handle 42 connected, in which a correspondingly shaped threaded portion is formed.

The 3a , b show the safety razor in the assembled state, wherein 3b a detailed view of the shaving plane head 20 shows. It is clear that the razor blades 1 . 1' Compared to conventional razors have a much greater curvature, so that the cutting edges 2 . 2 ' at the same level 40 . 40 lie substantially perpendicular to the horizontal 41 are. The cutting edges 2 . 2 ' have an angle α of preferably 40 ° relative to the horizontal 41 on.

It has already been mentioned that the handle 42 via a (not shown) threaded connection with the threaded pin 23 of the planing cover 21 connected is. 4a , b shows the situation in which the handle is screwed as much as possible with the planer cover, so that the handle rests on the end stop and with which the razor blades have the greatest possible curvature. By loosening the screw connection between the handle and the planer cover, the distance between said parts increases, so that automatically the curvature of the razor blades 1 . 1' decreases and the angle α becomes flatter. Due to the strength of the screw connection, the angle α can be infinitely adjusted between 40 ° and 50 °.

Finally, in particular, the detail view 3b to see that the planer base 25 leading edges on both sides 205 . 205 ' which, when shaving, are in contact with the surface of the skin and tighten the skin so as to allow the most gentle shaving possible. Possibly. the leading edge can be a small distance A from the cutting edge plane 40 . 40 ' of up to 0.5 mm.

The handle 42 has a stand space 43 so that the safety razor can be stored upright. In addition, the handle is 42 at least partially made of flexible material, such as silicone, whereby a smooth cut is promoted.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 470522 [0003]
• DE 1036712 [0005]

Claims (10)

Safety razor with two or more double-edged razor blades ( 1 . 1` ), preferably standard razor blades, one above the other and each of a spacer ( 24 ) are mounted spaced apart in a bent state, characterized in that the razor blades ( 1 . 1' ) are bent such that the cutting edges ( 2 . 2 ' ) on both sides an angle α of at least 40 ° with respect to a horizontal ( 41 ) form. Safety razor according to claim 1, characterized in that the angle α is 40 ° to 50 °, preferably 40 ° to 45 °. Safety razor according to one of claims 1 or 2, characterized in that the cutting edges ( 2 . 2 ' ) on both sides of the safety razor on one level ( 40 . 40 ' ), which are aligned parallel to each other and the horizontal ( 41 ) are cut substantially vertically. Safety razor according to one of claims 1 to 3, characterized in that the safety razor is substantially formed in three pieces and a planer cover ( 21 ) with several alignment pins ( 22 . 22 ' ) and a threaded pin ( 23 ) and a planer base ( 25 ) between which both the razor blades ( 1 . 1' ) as well as the spacers ( 24 ), wherein the alignment pins ( 22 . 22 ' ) and the threaded pin ( 23 ) the blades ( 1 . 1' ), the spacers ( 24 ) and the planer base ( 25 ). Safety razor according to one of claims 1 to 4, characterized in that the threaded pin ( 23 ) with a handle ( 42 ) is detachably connectable, whereby the distance between the planer cover ( 21 ) and the planer base ( 25 ) is selectable, so that the angle α is infinitely adjustable between a minimum angle arm and a maximum angle α _max , wherein the handle ( 42 ) is preferably at least partially made of a flexible material. Safety razor according to one of claims 1 to 5, characterized in that the spacer ( 42 ) is arcuate in cross-section and a curved outer surface ( 28 ) and an identically or almost identically curved inner surface ( 29 ), which has both contact surfaces for a razor blade ( 1 . 1' ) form. Safety razor according to one of claims 1 to 6, characterized in that the planer cover ( 21 ) a curved inner surface ( 27 ), the curvature of the outer surface ( 28 ) of the spacer ( 24 ) or almost corresponds. Safety razor according to one of claims 1 to 7, characterized in that the planer lower part ( 25 ) Retaining bars ( 202 . 203 ) for applying a razor blade ( 1 . 1' ) whose outer surface ( 204 . 204 ' ) are convex. Safety razor according to one of claims 1 to 8, characterized in that the planer lower part ( 25 ) two leading edges ( 205 . 205 ' ) each having a small distance of up to 0.5 mm from the cutting edge plane ( 40 . 40 ' ) exhibit. Razor blade characterized in that the planer cover ( 21 ) the spacer ( 24 ) and / or the planer base ( 25 ) are produced in the casting process, in particular as a zinc casting pressure.

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