RU2769140C1 - Shaving cassette - Google Patents

Abstract

FIELD: shaving accessories.

SUBSTANCE: invention relates to shaving devices. The shaving cassette contains a body with a block of blades and wheels fixed on opposite sides of the body, made with the possibility of rotation. The shaving cassette is equipped with a cogged pinion. The block of blades is formed by means of hinged holders. The hinged holders on one side are fixed at the base of the recess of the housing. On the other side, the blades are attached to the hinged holder, which communicate with the wheels on the sides. The wheels are made protruding behind the back of the case. The cogged pinion is made with the possibility of rotation by an angle by means of a locking protrusion and setting the position of the wheel during rotation to change the angle of rotation of the blade.

EFFECT: improving the quality of shaving.

1 cl, 5 dwg

Description

The invention relates to technical objects related to safety razor blades. [IPC A61Q 9/02, B26B 21/54]

From the prior art SYSTEM FOR SHAVE [CO5021238 (A1), publ. 03/27/2001], containing a blade element and a skin engagement area near said blade element, said skin engagement area containing a solid polymer composite material for shaving, including a first open longitudinal part containing a first shaving aid, and an adjacent second open longitudinal part containing a second shaving aid.

The disadvantage of the analogue is that when exposed to water during shaving, chemical reagents are released and leached from the composition onto the skin, which does not allow a person to provide a high-quality harmless shave.

Also known from the prior art is an IMPROVEMENT TO SAFETY RAZOR BLADES AND THEIR MANUFACTURING PROCESS [FR1258836 (A), publ. 04/21/1961], containing blades for safety razors with a sharp, godless or double edge and with a polymer coating on the steel edge of the blades.

The disadvantage of this analogue is that it does not have sufficiently sharp edges of the blades. The edges or sides of these sharp edges are practically not expressed, since the angular edges of the blades are almost parallel and do not form an acute angle between them. And this entails insufficiently effective cutting of the hairline and, consequently, poor-quality shaving.

The closest in technical essence is a RAZOR BLADE COATED FROM ORGANOSILOXANE GEL [US2937976 (A), publ. 05/24/1960], made with the presence of blades for safety razors with a single or double cutting edge, and also has a single, sticky coating of a gelled layer on a sharp edge.

The main technical problem of the prototype is that it cannot be used for shaving without an emollient, since the layer of gelled material located on the cutting edge is quickly erased and sticks to the hairline after the first swipe over the skin, which is due to excessive hair pulling. causes irritation that may last for a considerable period of time.

The objective of the invention is to eliminate the disadvantages of the prototype.

The technical result of the invention is to improve the quality of shaving.

The specified technical result is achieved due to the fact that the shaving cartridge contains a body including a block of blades and wheels fixed on opposite sides of the body, made with the possibility of rotation, characterized in that it is equipped with a gear with teeth, while the block of blades is formed by means of articulated holders , on the one hand, fixed at the base of the housing recess, and on the other hand, having blades attached to them, which communicate with the wheels on the sides, while the wheels are made protruding beyond the back of the housing, and the gear with teeth is made with the possibility of rotation at an angle by means of a protrusion lock and set the position of the wheel during rotation to change the angle of rotation of the blade.

In particular, the gear with teeth is configured to provide two or three positions of the wheels when they are rotated to change the angle of rotation of the blade.

Brief description of the drawings.

Figure 1 shows the appearance of the cartridge razor with blades.

Fig. 2 is a bottom view of a razor cartridge with blades.

Figures 3-5 show a side view (in section) of a razor cassette with blades (angles: 25, 35 and 45 degrees).

The figures indicate: 1 - gel coating, 2 - razor body, 3 - blades, 4 - wheels, 5 - plastic blade base, 6 - hinge device, 7 - internal fasteners, 8 - gear with teeth, 9 - teeth, 10 - recesses.

Implementation of the invention.

The razor cassette with blades 3 contains a gel coating 1 on the razor body 2 on top, blades 3 are located on the bottom with the possibility of rotation by 3 angles: 25, 35 and 45 degrees. The blades 3 are firmly fixed on the wheels 4 with the possibility of rotation to the indicated three angles. At the bottom of the blades 3 is their plastic base 5 with a hinged device 6 to enable rotation through the three specified angles with the blades 3 in the upper part of the plastic base 5. The plastic base 5 is attached to the body 2 by internal fasteners 7 in the recesses 10. A gear is installed in the center of the body 2 with teeth 8 with the possibility of rotation through three angles with the help of teeth 9 and providing rotation for blades 3.

The cassette is made with the possibility of free rotation upon contact with the cheek, depending on the bends and inclinations of the cheek.

The middle position of the wheel 4 corresponds to the middle position of the blades 3, namely the angle of 35 degrees.

The two extreme positions of the wheel 4 correspond to the extreme positions of the blades 3, namely the angles of 25 and 45 degrees.

The claimed technical solution is used as follows.

Initially, the user picks up a razor with a cassette and rotates the wheel 4 to set the angle of inclination of the blades 3 that he needs. the desired surface of the cheek. The hairline is cut with blades 3.

Also, in another case, you can adjust the cassette to an arbitrary inclination of the blades 3 when the blades 3 of the cassette pass over the surface of the cheek. The angle of inclination will change automatically arbitrarily under the pressure of the cheek itself.

The change in the angle of rotation of the blades 3 is a consequence of the movement of the wheel 4.

Blades 3 are attached to the wheel 4 by placing them on a plastic base 5, which is a continuation of the wheel 4 and therefore, synchronously with it, is capable of pivotally rotating on the device 6 fixed by internal fasteners 7 in the recesses 10.

The gear with teeth 8 sets the angle, therefore, the position of the wheel 4 is also set, the fixed blades 3 on which, in turn, rotate with it.

An angle of 45 degrees opens a large distance between the blades 3 and the body 2 so that the option of cleaning and washing the interblade space from bristle debris with water is possible.

When shaving the hairline, the gel coat 1 first touches the skin, which softens the skin and covers it with a thin protective shell for a smoother, smoother and easier shave.

With an angle value of more than 45 degrees, the blade 3 will be located almost perpendicular to the cheek surface, which will not give the desired shaving effect. This position of the blades 3 will not provide high-quality cutting of the hairline and at the same time can injure the skin.

Consider an example of achieving a technical result at an angle of inclination of the blades 3 over the body 2 of 25 degrees. Blades 3 are inclined as much as possible parallel to the surface of the cheek. Leaning them against the cheek and passing along it, the blades 3 pass tangentially, which provides the softest, painless shave and good cutting of the hairline.

Consider an example of achieving a technical result at an angle of inclination of the blades 3 above the body 2 of 45 degrees. Here the blades 3 are located almost perpendicular to the surface of the cheek. This movement of the blades 3 almost normal to the cheek ensures optimally deep penetration of the blades 3 into the skin, which allows them to remove even the hair roots inside. At the same time, the skin is not damaged due to the smoothed edges on the edge of the blades 3 and the gel coating 1 located at the top of the body 2 and above the blades 3.

The claimed technical result is achieved due to the fact that the blades 3 of the cassette are made with the possibility of rotation through three angles, which allows the user to choose the optimal shaving mode for himself. The implementation of the blades 3, mounted on a plastic hinged base 5, which rotates together with the wheel 4, which is driven by a gear with teeth 8, allows you to adjust the desired inclination of the blades 3 and fix the blades 3 in this position. Or you can choose to automatically tilt the blades 3 while shaving. Gel Coat 1 softens the skin and coats it with a thin protective shell for a smoother, smoother shave. In addition, the angled cutting edges on the skin edges of the blade 3, with a spacing of a few millimeters, form an optimally sharp angle of the blade 3, which ensures a good hairline shave without causing skin wounds.

Claims (2)

1. A shaving cassette containing a body including a block of blades and wheels fixed on opposite sides of the body, made with the possibility of rotation, characterized in that it is equipped with a gear with teeth, while the block of blades is formed by means of articulated holders, on one side fixed in the base recesses of the body, and on the other hand having blades attached to them, which communicate with the wheels on the sides, while the wheels are made protruding beyond the back of the body, and the gear with teeth is made with the possibility of rotation through an angle by means of a latch protrusion and setting the position of the wheel during rotation to change the blade angle. 2. Cassette according to claim 1, characterized in that the gear with teeth is configured to provide two or three positions of the wheels when they are rotated to change the angle of rotation of the blade.

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