RU2762428C1 - Shaving stick - Google Patents

Abstract

FIELD: personal hygiene products.

SUBSTANCE: invention relates to the field of shaving devices. The shaving stick contains a housing for fixing blades, a frame for attaching a cassette with blades and a cassette with blades. The shaving stick is equipped with a lever for changing the angle of inclination of the blades, lever stroke locks, a tensioner shaft, a wire tensioner and movable blade clamps made with a lever, one end rigidly attached to the shaft of movable blade clamps, and a shaft of movable blade clamps. The housing for fixing the blades is made with a lever stroke cavity. The lever for changing the angle of inclination, the lever stroke locks and the tensioner shaft are located in the lateral outer part of the housing inside the lever stroke cavity. The wire tensioner of the lever is fixed by means of fastening in the lower part of the lever for changing the angle of inclination of the blades. Each blade is connected to the lever for changing the angle of inclination of the blades through wire tensioners and movable blade clamps. The second end of the lever is connected to the side wall of the frame for mounting the cassette with blades.

EFFECT: ensuring the safety of shaving.

6 cl, 6 dwg

Description

The invention relates to cutting devices and can be used for shaving [B26B 21/40].

From the prior art known SHAVING MACHINE WITH WING-SHAPED FRAME MEANS FOR SHAVING [RU 2424109 C2, publ. 07/20/2011], containing a handle having a proximal and distal ends, a disposable razor cartridge mounted on the proximal end of the handle and which contains a blade unit containing a razor blade, a shaving aid holder attached to the blade unit and containing a housing surrounding the blade a block, and the body has a front and rear edges, a central support connected to one or both of the said front and rear edges of the body, a right wing and a left wing, and both wings are elastically connected to the central support, while on at least one of the wings the holder accommodates at least one portion of solid shaving means, and said right wing and left wing are configured to deflect in response to an applied force in the direction of this force.

The disadvantages of this analog are:

- high structural complexity, due to the presence of additional structural elements in the form of a right wing and a left wing, which are attached to the central support, and are constantly in motion during shaving;

- low reliability, due to the fact that after using the shaving aid holder, the residues of the shaving aid with a high degree of probability will remain on the structural elements of the product, which leads to accelerated wear of the shaving blades, their grinding, as well as the occurrence of corrosion on the central support ;

- high consumption of shaving agents, which occurs due to the fact that the supply of funds is carried out in the device automatically with each press, even if its supply is no longer required.

Also known from the prior art is a SHAVING CARTRIDGE WITH A NON-CUTTING ELEMENT [RU 2523198 C2, publ. 07/20/2014], containing: an array of razor blades containing two or more razor blades, each of which contains a cutting edge; at least one non-cutting element; a frame having a plurality of grooves or openings for positioning therein said two or more blades and said at least one non-cutting element, wherein each of said two or more razor blades and said at least one non-cutting element are located in an individual groove or opening, wherein said at least one non-cutting element is located within the array of razor blades.

The disadvantages of this analog are:

- low durability of the device due to the fact that, due to the design features of the analog, a soap-bristle mixture accumulates over time in the gaps between the non-cutting element and the razor blades, which leads to a reduction in the service life of the device;

- poor shaving quality in the presence of thick bristles, due to the presence of an additional non-cutting element, instead of a cutting element, the shaving efficiency decreases in the case of intensive use to remove thick and long hair on the bristles.

The closest in technical essence is a SHAVING MACHINE WITH A CHANGEABLE BLADE ANGLE [RU170017U1, publ. 04/11/2017], containing a cassette with blades, pivotally connected to the handle of the machine with the possibility of changing the angle of inclination of the cassette by rotating it around the axis and fixing it in a given position, characterized in that the handle is equipped with a hollow cylinder made on one side with teeth and a tube made with a thread on the inner surface, and the hollow cylinder is made in the front part with a smaller diameter, and the tube is located in it, while a spring is installed in the hollow cylinder, located on the tube with an emphasis on one side in the part with a smaller diameter of the hollow cylinder, and from the opposite side - into the head of the screw screwed into the tube, while the cassette with blades is made with teeth corresponding to the teeth of the hollow cylinder and located in contact with them.

The main technical problem of the prototype is the low safety of the shaving process due to the fact that when the angle of inclination of the blades changes, their bulging height relative to the razor body changes, thus sharp protruding corners are formed on the lateral edges of the sharp part of the blade. This increases the likelihood that the user of the razor will cause additional damage to the skin by the bulging sharp edges of the razor blade while shaving. This feature significantly increases the likelihood of cuts when using the device, and also reduces the usability of the product.

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

The technical result of the invention is to ensure the safety of shaving.

The specified technical result is achieved due to the fact that the shaving machine contains a housing for fixing the blades, a frame for attaching a cassette with blades, a cassette with blades, characterized in that it is equipped with a lever for changing the angle of inclination of the blades, lever stroke clamps, tensioner shaft, wire tensioner and movable blade clamps made with a lever, one end rigidly attached to the shaft of the movable blade clamps, and the shaft of the movable blade clamps, the housing for fixing the blades is made with a lever stroke cavity, while the tilt angle change lever, the lever stroke clamps and the tensioner shaft are located in the lateral outer part of the body inside the lever travel cavity, the wire tensioner of the lever is fixed by attaching it to the lower part of the lever for changing the angle of inclination of the blades, each blade is connected to the lever for changing the angle of inclination of the blades through wire tensioners and movable blade clamps, and the second end of the lever is connected to the side wall of the frame for crepe lining the blade cassette.

In particular, the tension wires are attached to the blades by attaching the tension wire and movable blade retainers.

Specifically, the wire tensioners wrap around the tensioner shaft and are attached to the blade angle arm by attaching the arm tensioner wire.

In particular, the lever stroke cavity includes more than two lever stroke latches with the ability to provide more than two fixed positions of the angle of inclination of the razor blades.

In particular, wire tensioners are made of water resistant wire.

In particular, the wire tensioners are made of polyester, polypropylene, aliphatic, polyamide, polyvinyl alcohol and cellulose hydrate fibers.

Brief description of the drawings.

FIG. 1 shows a general view of the shaving razor in the first fixed position.

FIG. 2 shows a general view of the razor in the second fixed position.

FIG. 3 is a view of the mechanism for changing the angle of inclination of the blade in the first fixed position.

FIG. 4 is a view of the mechanism for changing the angle of inclination of the blade in the second fixed position.

FIG. 5 is a view of the movable blade retainers, blades and the sidewall of the frame for securing the blade cassette in the first locked position.

FIG. 6 is a view of movable blade retainers, blades and a sidewall of a frame for securing a blade cartridge in a second locked position.

The figures indicate: 1 - machine handle, 2 - housing for fixing blades, 3 - frame for attaching a cassette with blades, 4 - blades, 5 - movable blade holders, 6 - lever for changing the angle of inclination of the blades, 7 - lever travel cavity, 8 - wire tensioners, 9 - arm wire tensioner fastener, 10 - blade wire tensioner fastener, 11 - lever travel clamps, 12 - tensioner shaft.

Implementation of the invention

The shaving razor contains a handle of the machine 1, which is connected to the housing for fixing the blades 2, on the sides, in the left and right parts of which there is a frame for fastening a cassette with blades 3, inside which blades 4 are mounted forming a cassette with blades. In this case, the blades 4 are attached to the frame for attachment for the blade cassette 3 by means of movable blade clamps 5. In this case, the movable blade clamps 5 have a lever, one end of which is rigidly attached to the shaft of the movable blade clamps 5, the second end is connected to the side wall of the frame for attachment cassettes with blades 3. In the right lateral outer part of the housing for fixing the blades 2 there are a lever for changing the angle of inclination of the blades 6 and a cavity for the stroke of the lever 7, and the lever for changing the angle of inclination of the blades 6 is located inside the cavity of the stroke of the lever 7. In this case, the lever for changing the angle of inclination of the blades 6 is connected to each blade 4 by means of wire tensioners 8. In this case, the wire tensioners 8 are fixed to the blade angle change lever 6 by attaching the wire tensioner of the lever 9. Also, the wire tensioners 8 are fixed to each blade 4 by means of the wire tensioners of the blades 10. Inside the stroke cavity lever 7 on the left and right side walls of the Lever travel stops 11 are located, and at the same distance from the left and right edges, the tensioner shafts 12.

The razor is used as follows.

Initially, the handle of the machine 1 is connected to the housing for fixing the blades 2, inside the housing for fixing the blades 2, a frame is mounted for attaching a cassette with blades 3, in the right and left parts of which there are movable blade clamps 5, connected through a lever with the side walls of the frame for attaching the cassette with blades 3. The number of movable blade retainers 5 on each side corresponds to the number of shaving blades 4. Further, in the frame for attaching the cassette with blades 3 movable blade clamps 5 are attached replaceable cassettes with blades 4. Next, in the right outer side part of the body to fix the blades 2, a cavity of the lever 7 is made, in which the lever for changing the angle of inclination of the blades 6 is placed, the lever stroke clamps 11, according to the number of possible states of the fixed angle of inclination of the blades, and the tensioner shaft 11, which is located under the first place of the fixed state of the lever for changing the angle of inclination of the blades 6, which is characterized by the minimum angle of the blades with respect to the plane of the frame for attaching the cassette with blades 3. At the base of the lever changing the angle of inclination of the blades 6 fix the fastening of the wire tensioner of the lever 9, to which the wire tensioners 8 are attached, then the wire tensioners 8 are attached to each movable blade retainer 5, while the fastening is performed so that between the fastening of the wire tensioner of the lever 9 and the fasteners of the wire tensioner of the blade 10 formed enough precise tension level without the possibility of sagging. In this case, the system of wire tensioners can be made from small diameter wires resistant to water, or from high-strength threads.

When using the device, initially the lever for changing the angle of inclination of the blades 6 is in the first fixed position, when the blades 4 have a minimum angle, relative to the plane of the frame for attaching the blade cassette 3, for the most comfortable shaving. In this case, the side walls of the frame for attaching the blade cassette 3 are at a height corresponding to the height of the blades protruding from the housing for fixing the blades 2. Thus, the side walls of the frame for attaching the blade cassette 3 ensure that there are no protruding sharp edges of the razor blade.

During the shaving process, or after its end, when the space between the blades 4 is clogged with a soap-bristle mixture that cannot be washed or shaken out, due to the small angle of inclination of the blades, the user of the device presses the lever for changing the angle of inclination of the blades 7 with his thumb or middle finger, overcoming thus, the resistance force created by the lever travel locks 10. Further, the blade tilt angle change lever 6 goes into the next fixed state, and through the wire tensioners 8 and through the tensioner shaft 12, an additional tension force is created, which, through the fasteners of the wire tensioners of the blades 10 and movable blade retainers 5, is transferred to the blades 4, thereby realizing a change in their angle of inclination. Also, due to the presence of a lever on the movable blade clamps 5, the second end of which is connected to the side wall of the frame for attaching the blade cartridge 3, the walls of the frame for attaching the blade cartridge 3 are raised to a level that will ensure that there are no protruding sharp corners of the shaving blades. Thus, when the angle of inclination of the blades is changed, the walls of the frame for attaching the cassette with blades 3 are automatically raised or lowered to such a level that, on the one hand, ensures that sharp edges of the blade do not bulge out on the sides of the body for fixing the blades 2, on the other hand, it will not exceed the height lifting the blades. Changing the angle of inclination of the blades 4 and, accordingly, the height of the side walls of the frame for attaching a cassette with blades 3, from sharp to a larger arbitrary angle, up to straight using wire tensioners 8 and a lever for changing the angle of inclination of the blades 6 increases the distance between the plates and makes it easy to wash and shake out soap and bristle mixture. In this case, after washing and cleaning, the user can again change the angle of inclination of the blades 4 to a level comfortable for shaving by mechanically acting on the lever for changing the angle of inclination of the blades 6 with a finger, accordingly, the height of the walls of the frame for attaching the cassette with blades 3 will change, and continue shaving.

Also, the design of the product provides that the cavity of the lever 7 has more than two lever travel stops 11. The number of lever travel stops 11 determines the number of fixed positions of the blade inclination angle 4. In accordance with the change in the number of fixed values of the possible blade inclination angle 4, additional shafts can be installed in series tensioner 12, to increase the reliability of the structure.

A variant of the product design provides for the use of wire tensioners made of small diameter wire that is resistant to water, oxidation and corrosion processes, such as stainless wire.

A variant of the product design provides for the use of wire tensioners made of high-strength threads, for example, threads of polyester, polypropylene, aliphatic, polyamide, polyvinyl alcohol, cellulose hydrate fibers.

The claimed design of the razor increases the convenience of cleaning the inter-blade gaps due to the fact that, together with the angle of inclination of the blades 4, the distance between them changes, which contributes to the effective removal of the soap-bristle mixture. In addition, the service life of the product increases due to the fact that after the end of shaving in hard-to-reach areas of the blades (for example, in the places where they are attached to the frame 3), the possibility of the residue of the soap-bristle mixture is excluded, which over time can lead to oxidation and deformation of the blades 4 and others. functional elements of the device.

The technical result of the invention, ensuring the safety of shaving is achieved due to the fact that the movable blade retainers 5 have a lever, one end of which is rigidly attached to the shaft of the movable blade retainers 5, the second end is connected to the side wall of the frame for attaching a cassette with blades 3. Changing the angle of inclination of the blades and the height of the walls of the frame for attaching the cassette with blades 3 is carried out due to the mechanical action of the user's finger on the lever for changing the angle of inclination of the blades 6. In this case, each blade 4 is connected to the lever for changing the angle of inclination of the blades 6 through wire tensioners 8 and movable blade clamps 5. Due to the fact that the claimed technical solution allows the processes of changing the angle of inclination of the blades and the height of the walls of the frame at the same time, excludes the possibility of bulging sharp corners of the blades 4 from the walls of the frame for attaching the cassette with blades 3, which eliminates the possibility of cuts and damage to the skin by protruding sharp corners of the brie blade you 4 while shaving.

An example of achieving a technical result

When shaving, the user, by means of mechanical action with a finger on the lever for changing the angle of inclination of the blades 6, sets the required angle of inclination of the blades 4. Simultaneously with the process of changing the angle of inclination of the blades 4, according to the design of the product, there is a change in the height of the side walls of the frame 3 of the blades 4. Moreover, the height of the side walls frame 3 becomes equal to the bulging height of the blades 4. Thus, due to the protrusion of the side walls of the frame 3 of the blades 4, the user will protect the skin from injury by the sharp ends of the blades 4, which at any angle of inclination are covered by the side walls of the frame 3, and due to this, the declared technical result.

Claims (6)

1. A razor containing a housing for fixing blades, a frame for attaching a cassette with blades, a cassette with blades, characterized in that it is equipped with a lever for changing the angle of inclination of the blades, lever travel stops, tensioner shaft, wire tensioner and movable blade stops made with a lever, one end rigidly attached to the shaft of the movable blade retainers, and the shaft of the movable blade retainers, the housing for fixing the blades is made with a lever travel cavity, while the tilt angle change lever, lever travel stops and the tensioner shaft are located in the lateral outer part of the housing inside the travel cavity lever, the wire tensioner of the lever is fixed by means of attachment in the lower part of the lever for changing the angle of inclination of the blades, each blade is connected to the lever for changing the angle of inclination of the blades through wire tensioners and movable blade clamps, and the second end of the lever is connected to the side wall of the frame for attaching the cassette with blades. 2. The shaving razor of claim. 1, characterized in that the wire tensioners are attached to the blades by attaching the tensioner wire and movable blade retainers. 3. The razor of claim. 1, characterized in that the wire tensioners bend around the tensioner shaft and are attached to the lever for changing the angle of inclination of the blades by attaching the wire tensioner lever. 4. The razor according to claim. 1, characterized in that the cavity of the lever stroke includes more than two locks of the lever stroke with the possibility of providing more than two fixed positions of the angle of inclination of the razor blades. 5. The shaving machine according to any one of paragraphs. 1-3, characterized in that the wire tensioners are made of water-resistant wire. 6. The shaving machine according to any one of paragraphs. 1-3, characterized in that the wire tensioners are made in the form of threads of polyester, polypropylene, aliphatic, polyamide, polyvinyl alcohol and cellulose hydrate fibers.

Images