RU27889U1 - SAFETY RAZOR AND SHAVING ACCESSORIES - Google Patents

Description

IPC A 45 D 27/00; 26 V 21/00 Safety razor and razor accessories

The utility model relates to human gngien, in particular to means for shaving hair on human skin, mainly on the face, by a mechanical wet method.

A safety razor is known, including a holder, a blade mounted in the holder and a handle attached to the outer surface of the rear member of the holder. A canister is mounted in the handle for supplying through a flexible hose to the skin surface in front of the blade and the shaving aid holder (US Patent No. 4433483, IPC B 26 V 21/44, publ. 1984).

The closest technical solution (prototype) is a safety razor, comprising a blade holder with a protective element in contact with the skin of the face, a mono or multi-edge blade mounted in the holder and a handle attached to the holder on the opposite side from the cutting edges of the blade, and one is made in the holder or several through slots, forming a washing space together with the cutting edges of the blade (RF patent No. 2118252, IPC B 26 V 21/00, publ. 08.28.98).

Famous safety razors are used as follows. Facial hair is softened by applying a compress, then shaving agent is applied to the entire surface of the skin of the face (or continuously applied to the skin in front of the cutting edges of the blade), the safety razor blade is brought into contact without pressing the surface of the human skin, the cutting edges of the blade are repeatedly moved to contact with the skin and cut off the hair directly at the surface of the skin, repeating the operation several times. The razor is washed with water after each movement along the skin surface due to excess shaving agent.

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The disadvantage of these safety razors (analog and prototype) with the traditional method of shaving is the sticky consumption of shaving cream (continuous application of the product on the skin in front of the cutting edges of the blade or preliminary soaping of the entire surface of the skin) and the duration of the shaving process (at least 5 minutes) due to that the skin and hair are not prepared for the shaving process: the fat layer prevents the penetration of shaving products (soap, shampoo) to the surface of the hair, which does not contribute to their adsorption reduction in strength under the influence of surface-active substances (surfactants) in accordance with the Rebinder effect (D.A., Friedrichsberg. The course of colloid chemistry. - Leningrad, ed. Chemistry, 1974.- S. 279-280), and the dry surface of the skin and hair reduces the formation of shaving foam.

Known razor accessory, which is a device for the formation of shaving foam, including an aerosol container for a soap preparation, an exhaust distribution head with a valve mounted in the upper cover of the cylinder, and a nozzle-brush made in the form of a separate element with the possibility of its installation on the cylinder cover and distribution head. The brush includes a brush with a base and a docking unit, along the axis of which a through channel is made. In the through channel there is a hollow rod for supplying soap to the brush (Utility Model of the Russian Federation No. 7285, IPC A 45 D 27/04, publ. 08/16/98).

However, this shaving accessory is intended for the traditional method of shaving with a safety razor, namely for the formation and application of soap foam on the skin surface with a hair coat before shaving with a safety razor, which saves all the disadvantages of the traditional method of shaving with a safety razor: - the duration of the shaving process (at least 5 minutes );

- the complexity and inconvenience of the shaving process in camp conditions, when traveling by transport, for example, long journeys by rail;

-excessive consumption of shaving products.

The closest analogue device (prototype) is a razor for drying; shaving hair on a person’s face, including a container with a shaving aid and a unit connected to it for dosing the product onto the skin in front of the cutting edges of the safety razor blade. The container is pressurized and integrated into the handle of the safety razor, and the shaving agent dosing unit is a pressure-type valve connected to dispensing channels made in the razor head, the outlet openings of which are installed at the cutting edge of the razor blade (US Patent No. 5564190, МГЖ В 26 В 21/40, publ. 1997).

The disadvantages of the specified shaving accessories (prototype) is the excessive consumption of shaving products (continuous application of the product on the skin in front of the cutting edge of the blade) and the duration of the shaving process (at least 5 minutes) due to the fact that the skin and hairline are not prepared for the shaving process: the fat layer is prevented by the penetration of shaving products (soap, shampoo) to the surface of the hair, which does not contribute to their adsorption decrease in strength under the influence of surface-active substances (NAV) in accordance with the effect of Rebin dera, and the dry surface of the skin and hair prevents the formation of foam during shaving. In addition, such a razor accessory is part of a safety razor, which complicates its design.

The technical result of the proposed utility model is the creation of such a safe razor and such razor accessories that provide a significant reduction in the cost of funds for

s. / y /

shaving (not less than 2 times), a significant reduction in shaving time (shaving time not more than 1 minute).

The specified technical result is achieved in that in a safety razor including a blade holder with a protective element in contact with the skin of the face, a mono or multi-edge blade mounted in the holder and a handle attached to the holder on the opposite side from the cutting edges of the blade, one in the holder or several through slots, forming a washing space together with the cutting edges of the blade, according to the utility model, the washing space of the holder on the handle side is limited to the part, filled in the form of a lattice or mesh attached to the holder with a mesh size sufficient to hold the shaving product with a dynamic viscosity of not more than 10.0 Pa sec. Moreover, the mesh size of the lattice or mesh is not less than 0.1 mm and not more than 2 mm.

A grid or mesh with a specified mesh size keeps the shaving product in the wash space. The dynamic viscosity of the shaving agent less than 10 Pa sec ensures the formation of an optimal foam layer sufficient to ensure clean shaving of the hair with a single application of the shaving agent on the cutting edge of the blade and in the washing space between the shaver head and the blade. A shaving product with a dynamic viscosity of more than 10 Pa sec is poorly dosed with a razor blade and complicates the formation of a foam layer on the cutting edge, requiring additional skin moisturizing during shaving.

The specified technical result is also achieved by the fact that in the razor accessories, including a container with a means for shaving, a cover and a unit for supplying a means for shaving on the cutting edges of the blade and the washing space of the holder safe

razors, according to a utility model, the unit for supplying shaving means to the cutting edges of the blade and into the washing space of the safety razor holder contains a transverse partition with a calibrated hole at its edge, located inside the container with shaving means with the formation of cavities on the side of the lid and the bottom of the container, and opposite to the calibrated hole of the transverse partition and with a gap relative to it from the side of the lid, an additional mini-partition is attached to the wall of the container to form a cuvette.

The inventive razor accessories do not require a change in the design of the safety razor and makes it easy to apply shaving agent to the cutting edges of the safety razor blade and into the washing space of the razor holder.

In FIG. 1 is a diagram of a safety razor. In FIG. 2 illustrates shaving, and in FIG. 3 - same, section along AA.

A safety razor includes a blade holder 1 with a protective element 2 in contact with the skin of the face, a mono or multi-edge blade 3 mounted in the holder 1 and a handle 4 attached to the holder 1 on the opposite side of the cutting edges of the blade 3. One or more of the holder 1 several through slots 5, forming, together with the cutting edges of the blade 3, a washing space 6. The washing space 6 of the holder 1 from the side of the handle 4 is limited to part 7, made in the form of a lattice or mesh attached to the holder 1 with a size cells sufficient to hold shaving products with a dynamic viscosity of less than 10.0 Pa sec. The mesh size of the lattice or mesh is not less than 0.1 mm and not more than 2 mm.

The razor accessory includes a container 8 with shaving means, a cover 9 and a unit for supplying shaving means to the cutting edges of the blade 3 and the washing space 6 of the safety razor holder 1. The site for supplying shaving means to the cutting edges of the blade 3 and into the washing space 6 of the holder of the safety razor 1 contains a transverse partition 10 with a calibrated hole 11 at its edge, located inside the container 8 with the shaving means with the formation of the cavity 12 from the side of the lid and cavity 13 with shaving means from the bottom of the container 8. Opposite the calibrated hole 11 of the transverse partition 10 and with a gap relative to it from the side of the lid 9, an additional mini-partition 14 is attached to the wall of the container 8 to form working cell 15.

Using razor accessories and shaving hair with a safe razor is as follows. The shaving agent, which is used as a shampoo, or liquid soap, or other foaming detergent with a dynamic viscosity of not more than 10 Pa sec is applied once during a shaving cycle from the outside of the holder 1 to the cutting edges of the blade 3 and to the washing space 6 of the holder 1, limited by a grill or mesh (part 7) and the cutting edges of the blade 3. To do this, use a shaving accessory (Fig. 2 and 3) containing a shaving aid. The lid 9 is opened and the container 8 is tilted to a horizontal position. The dose of shaving agent passes through a calibrated hole 11 into the cavity of the working cuvette 15. The razor is lowered into the container 8, where the razor holder 1 is immersed in the shaving aid layer located in the cuvette 15. At the same time, the shaving agent is applied to the cutting edges of the blade 3, penetrates into the washing space 6 of the holder 1 and is held there by the net 7. Excess funds are shaken off the razor in the cell 15. After

the return of the container 8 to the vertical position, the remnants of the shaving product flow through the hole 11 into the cavity 13 of the container 8.

After that, before shaving (depending on the situation where the person is: at home, or in traveling conditions in nature, or on a train during a long trip), the face and hair on it are degreased by washing it with detergents and water (without drying the skin, for example towel). Next, the razor holder 1 with cutting edges of the blade 3 is applied to the wet surface of the skin of the face, followed by repeated movement of the razor along the surface of the skin of the face, in which the said shaving agent is transferred to the treated area of the skin from the razor blade 3 with the formation of a microlayer of foam and simultaneous cutting of the hair with cutting the edges of the blade 3. The complete shaving cycle is carried out without washing the holder 1 and the cutting edges of the razor blade 3. The preliminary degreasing of the skin and hair ensures the unhindered penetration of shaving products (soap, shampoo) to the surface of the hair, which contributes to their adsorption reduction in strength under the influence of surface-active substances (surfactants) in accordance with the Rebinder effect. Moisturizing the skin and hair with water with water before shaving contributes to a more efficient formation of a foam micro layer during shaving on the cutting edge of the blade and on the section of hair that is cut by the cutting edge of the blade. In the known methods, only when soaping the face during shaving and the formation of a foam layer on it, degreasing of the hair and moisturizing of the skin is ensured, which requires, as mentioned above, a significant expenditure of the shaving aid, a significant investment of time and causes inconvenience when shaving in traveling conditions.

with the length of the cutting edges of the blade 3 razors 40 mm, the width of the section of the holder 1 razor, which is covered with a shaving agent, 5 mm and the thickness of the applied layer 1 mm, the consumption of shaving means in the proposed method is 40.0x5.0x1,, 2 cm. Approximately the same amount of shaving agent is contained in the washing space of the shaver holder. This amount of shaving aid provides (maintains) a thin layer of foam during the complete shaving cycle. The foam number in modern shaving products (Sanitary rules and norms. SanPiN 1.2.681-97, Ministry of Health of the Russian Federation, M., 1988, p. 32) is 400 cm, i.e. from 0.2 cm shaving products get 80 cm foam. Facial hair averages 15.0 x 26.5 x 400 cm

Thus, a volume of foam of 80 cm will provide a foam layer in the area of hairline with an area of 400 cm and a thickness of 80 cm and 0.2 cm, which is sufficient to ensure the shaving process. The cost of shaving in the known methods is at least 1000 mm 1 cm, which is several times more (more than 2 times) than in the original method of shaving, implemented using the inventive safety razor. The practical experience of using the inventive safety razor also shows that the consumption of shaving products is significantly reduced (at least 2 times), the shaving time is significantly reduced (shaving time is not more than 1 minute).

The shaving accessory improves the usability of the razor and reduces the time it takes to apply the shaving product to the cutting edge of the blade and to the washing space.

Claims (3)

1. A safety razor including a blade holder with a protective element, a mono or multi-edge blade mounted in the holder and a handle attached to the holder on the opposite side from the cutting edges of the blade, one or more through slots being made in the holder forming together with the cutting edges of the blade a washing space, characterized in that the washing space of the holder on the handle side is limited to a part made in the form of a lattice or mesh attached to the holder with a mesh size sufficient to I hold shaving products with a dynamic viscosity of not more than 10.0 Pa • s.  2. The safety razor according to claim 1, characterized in that the mesh size of the lattice or mesh is at least 0.1 mm and not more than 2 mm. 3. Shaving accessories, including a container with shaving means, a cover and a unit for supplying shaving means to the cutting edges of the blade and into the washing space of the safety razor holder, characterized in that the unit for supplying the shaving means to the cutting edges of the blade and into the washing space the safety razor holder contains a transverse partition with a calibrated hole at its edge, located inside the container with shaving means with the formation of cavities on the side of the lid and bottom of the container, and on the contrary the caliber vannogo transverse openings wall and with a clearance with respect to it by the cover attached to the wall of the container more mini septum for forming a cuvette.