RU2664072C2 - Cassette with shaving blades - Google Patents

Abstract

FIELD: items for personal use.SUBSTANCE: cassette with shaving razors contains a U-shaped frame and two to five blades installed in the frame. The cassette frame includes a snap mechanism for attachment to the shaving machine. The blades are of different widths. They are installed step-by-step and close to each other with formation of a multi-layer block fixed in the frame. The blades are located in a multi-layered block from the widest to the narrowest. The angle of sharpening of each blade is located along the axis of blade symmetry. The frame is made of metal or plastic.EFFECT: improved quality of shaving.2 dwg

Description

The invention relates to means for satisfying human needs, in particular, to safe shaving systems, namely, it is an element of a manual cutting device with several cutting edges, intended for human hygiene for shaving hair on the skin, mainly on the face.

Known safety razor "DER KU β" (kiss) (options), containing a holder and a handle interconnected, the holder may contain a multi-edged blade, a through hole is made in front of each of them (Certificate RU No. 5550. Publ. 16.12.1997 g.).

However, the use of the known safety razor is fraught with a number of difficulties regarding the rapid clogging of the through hole and lengthening the shaving time.

A safety razor with a replaceable shaving head supporting at least one blade with a cutting edge is known, in addition it is equipped with at least one more blade with a cutting edge mounted so that the cutting edge is directed in the opposite direction from the first ( Patent No. 63734. Published on June 10, 2007).

However, the known safety razor has only two blades located at a distance from each other, which creates inconvenience in its use due to clogging the gap between the blades.

Known razor containing a holder with a handle and at least one pair of blades. The blades are mounted in the holder at an acute angle symmetrically with respect to the longitudinal axis of the machine. A transverse jumper is made in the center of the holder. This jumper locks the blade installation. The blade installation angle is between 75-80 °. Preferably, the razor comprises two or more pairs of blades with different installation angles. Preferably no more than four. It is advisable to carry out the installation angle of each previous pair of blades in the direction of movement of the machine more than the installation angle of the subsequent one (Patent No. 78114, November 20, 2008).

However, in the well-known shaving machine, the blades are made of the same thickness, which does not allow creating a “softness” and a gentle shaving regime.

A razor head and a razor with such a head are known, the latter comprising a frame, one or more razor blades and a guide roller. The frame includes two side parts, a front part and a rear part. The rear part connects the two side parts to each other. A razor blade is installed between the two side parts. The guide roller is in the form of a columnar structure, which is located in front of the cutting edge of the razor blade. The columnar structure is rotatably mounted on the front. The center line of rotation of the guide roller and the cutting edge of the razor blades form a first plane. On the first plane is the generatrix of the guide roller. The forming guide roller and the cutting edge are not parallel. The razor contains a handle, a lever mechanism and a razor head. The frame is connected to a linkage (Patent RU No. 2572641. Publish. 01.20.2016).

However, in the known razor head, the blades are made of the same thickness, which does not allow creating a “softness” and a gentle shaving regime.

A known method of manufacturing a replaceable razor cartridge, including the execution of the housing for installing one or more blades and a connecting element having a rotary support device and a base that is adapted for rigid fastening to the handle with the possibility of removal, and the introduction of a rotary support device into a recess in the housing with subsequent fixing rotary support device in the recess (Patent RU No. 2263023. Publ. October 27, 2005).

However, in the known method, the installed blades are made of the same thickness in the head, which does not allow creating softness and gentle shaving.

Safety razors are known, equipped with heads with blade units, in which there can be either one or several blades fixed in the housing (Patents RU No. 2189308. Publish. 20.92.2002; RU No. 2127660. Publish. 03.20.1999. ; RU No. 2315687. Published on January 27, 2008; RU No. 2314194. Published on January 10, 2008).

However, the known safety razors used blades of the same thickness, in addition, there is a small distance between the blades, in other words, space.

The new “Mach 3 Turbo” is known, containing blades that are fixed with space between each other (Electronic resource: http://gillette.ru/ru-ru/products/razor-blades/replacement-razor-blades. - 2016).

However, in the famous new Mach 3 Turbo, the space between the blades is clogged with cut bristles, which leads to shaving irritation.

Known razor devices and cartridges for razors with a reduced total distance between the blades, in which the razor contains a cartridge attached to the handle. The cartridge contains at least five elongated blade assemblies. Blade assemblies are located parallel to each other between the protective element and the housing cover. Each blade assembly has a pointed cutting edge. The total distance between the cutting edges of the blade assemblies is not more than about 3.2 mm (Patent No. 2479416 RU. Publish. 04/20/2013).

However, in the known invention, the space between the blades is clogged with cut bristles, which leads to irritation during shaving.

The present invention is a clean, without irritation, and high-quality shaving, as well as expanding the range of blade heads for safety razors. The technical result is manifested in the creation of a single multilayer block of blades of various widths, arranged in steps and close to each other, allowing you to create a soft and gentle shaving mode.

The problem is solved in that in a cassette with shaving blades containing a frame with a snap mechanism for attaching it to the shaving machine and blades installed in the frame with a cutting edge at the working end, the number of which is from two to five, the blades are made of different widths and mounted stepwise and close to each other with the formation of a multilayer block fixed in the frame, while the blades are located in the said multilayer block from having the largest width and placed on the side of the latches mechanism to the smallest width, while the cutting edge of each blade is made with a sharpening angle located on the axis of symmetry of the blade, the frame is made of a U-shaped metal or plastic.

The present invention is illustrated by a detailed description, diagrams in which:

FIG. 1 shows a plan view of a cassette with blades, in the form of a single multilayer block, according to the invention;

Figure 2 shows a side view of a cassette with blades having different widths, the same as in figure 1.

The cassette with blades 1-4 for shaving is equipped with a frame 5 (Fig. 1). In the frame 5, which can be made in the form of a frame having the shape of a channel, blades 1-4 are installed. Blades 1-4 are made of various heights, superimposed on each other in the form of a single multilayer block that does not have a distance (space) between each other. At the working end of each blade 1-4, a cutting edge is made, the sharpening angle of which is located along the symmetry axis of each blade 1-4. In addition, the blades are located from the largest length and width of the blade 1 from the side of the locking mechanism 6 to the blade 4 having the smallest length and width (Fig. 2). In this case, the vertices of the sharpening angles are located at an angle to the horizontal. The number of layers of blades 1-4 in a single monolithic block can be at least two and no more than twelve. The frame 5 of the blades 1-4 is equipped with a snap mechanism 6, with which the frame 5 is fixed to the shaving machine.

Double-sided sharpening, the same for all blades.

A cassette with razor blades is used as follows.

Pre-made frame 5 in the form of a frame having the shape of a channel. Each blade 1-4 is made. Moreover, each blade 1-4 is made of various lengths and heights. The sharpening angle of the cutting edge of each blade 1-4 is performed along the symmetry axis of the corresponding blade 1-4.

Then connect the blades 1-4 in a single multilayer block, laying them on top of each other. Moreover, between the blades 1-4 there is no distance (space) between each other. After that, a single multilayer block of blades 1-4 is placed in the inner space of the frame in the form of a channel. In this case, the blade 1 of a single monolithic block is located on the side of the latching mechanism 6.

The proposed invention eliminates clogging with cut bristles and foam when shaving due to the lack of space between the blades and, as a result, allows you to create a soft, clean, gentle shaving regime, without skin irritation. Also, the proposed utility model expands the range of blade heads (cartridges, cassettes) for safety razors.

The proposed cassette with shaving blades has a longer shelf life, a cleaner and better quality shave.

Claims (1)

Cassette with shaving blades, comprising a frame with a snap mechanism for attaching it to the shaving machine and blades mounted in the frame with a cutting edge at the working end, the number of which is from two to five, characterized in that the blades are made of different widths and are installed in steps and close to each other with the formation of a multilayer block fixed in the frame, while the blades are located in the said multilayer block from having the greatest width and placed on the side of the latching mechanism having a smallest width, wherein the cutting edge of each blade is formed with an angle, situated on the symmetry axis of the blade and the frame is formed U-shaped metal or plastic.

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