RU225616U1 - UNIT FOR MANICURE AND PEDICURE - Google Patents

Abstract

The utility model relates to the design of universal attachments for manicure devices that are used to treat the surface of nails, or for pedicure devices that are used to treat the surface of the foot, and can be used in professional and individual activities for the preparation and hardware of cosmetic care for the skin of the feet and surface of the nails. The attachment for a device for manicure and pedicure contains a rod that is inserted and clamped into the handle of the device, and a platform for attaching an abrasive file, made in the form of a disk with through holes. The disc shaft diameter is 2.33 mm; the diameter of the through holes on the disk pad is 0.3 mm larger than the diameter of the disk rod; the cleanliness of the metal processing of the platform and the rod corresponds to the value the platform for attaching the abrasive file is made with a recess that forms a rim 0.5 mm thick along the perimeter; the length of the rod and the diameter of the rod are made in the ratio L/D=15.5, where L is the length of the rod, D is the diameter of the rod. The technical result is to increase the usability of the device. 1 ill.

Description

Field of technology

The utility model relates to the design of universal attachments for manicure devices that are used to treat the surface of nails, or for pedicure devices that are used to treat the surface of the foot, and can be used in professional and individual activities for the preparation and hardware of cosmetic care for the skin of the feet and surface of the nails.

State of the art

A known attachment for a device for manicure and pedicure (RF patent No. 190550 with a priority date of May 20, 2019), including a rod that is inserted and clamped into the handle of the device, and a working part made in the shape of a disk. In this case, the working part of the nozzle has through holes.

The disadvantage of the known attachment for a device for manicure and pedicure is that it is difficult for the master to symmetrically and evenly attach the replaceable abrasive file, which is glued to the disk. If the replaceable abrasive file is not fixed evenly or symmetrically on the disk, then the surface treatment will be uneven, the areas with the abrasive element may heat up, overheating (burn) or poor-quality treatment when the nozzle rotates in the device and comes into contact with the surface being treated - the nail plate, skin. Also, when working at high speeds, the replaceable abrasive file can move from the working surface of the disk and cause injury.

A product for manicure and pedicure is known (RF patent No. 191812 with a priority date of May 15, 2019), consisting of a shaft and a platform for attaching an abrasive. In this case, the platform for fastening the abrasive has at least one through hole.

The disadvantage of the known product for manicure and pedicure apparatus is that it is difficult for the master to symmetrically and evenly attach the replaceable abrasive file, which is glued to the disk. If the replaceable abrasive file is not fixed evenly or symmetrically on the disk, then the surface treatment will be uneven, the areas with the abrasive element may heat up, overheating (burn) or poor-quality treatment when the nozzle rotates in the device and comes into contact with the surface being treated - the nail plate, skin. Also, when working at high speeds, the replaceable abrasive file can move from the working surface of the disk and cause injury.

There is a known nozzle for a device for manicure and pedicure (RF patent No. 193531 with a priority date of 04/09/2019), consisting of a rod that is inserted and clamped in the handle of the device, and a working part made in the form of a disk; abrasive files are attached to the disk. In this case, the disk is made spherical and has holes on the surface.

The disadvantage of the known attachment for manicure and pedicure is that the working surface of the disk has a convex design, which does not allow for complete safety of the manicure or pedicure procedure, since at high rotation speeds the risk of injury increases due to an incorrect angle of use. The abrasive file has a flat shape and, when glued to a disk in the form of a spherical surface, it may not be glued evenly, and therefore the surface treatment will be uneven and may cause overheating (burn) or poor-quality processing. Also, when working at high speeds, the file may move from the working surface of the disk and cause injury. The formation of through holes on a spherical surface during manufacturing is a labor-intensive operation, which leads to an increase in the cost of the nozzle.

There is a known nozzle for a device for manicure and pedicure (RF patent No. 194774 with a priority date of 10.29.2019), which contains a disk with an outer working surface and an inverse surface to which a rod is attached for attaching the nozzle to the device for manicure and pedicure. The disk has through holes located in pairs diametrically opposite to each other. The holes have an asymmetrical elongated shape, formed by a circle of larger diameter and a circle of smaller diameter, connected by tangents to both circles by straight lines, and the holes are located so that the circle of larger diameter is located closer to the periphery of the disk (bucket shape). In this case, the number of holes is a multiple of two, but not less than four.

The disadvantage of the known nozzle for manicure and pedicure is the complexity of manufacturing due to the design features: to produce a nozzle with bucket-shaped through holes, a number of labor-intensive operations are required, which leads to an increase in the cost of the product. In addition, the working surface of the disk and the rod for fixing the attachment into the master’s tool must be fastened in a certain way - while maintaining the alignment and symmetry of the entire product.

The closest solution was chosen to be a nozzle for a device for manicure and pedicure (RF patent No. 197521 with a priority date of 02/20/2020 (prototype)), including a rod that is inserted and clamped into the handle of the device, and a working part made in the form of a disk. In this case, the working part of the nozzle has a seating recess and through holes.

The disadvantages of this attachment for a manicure and pedicure machine include the following:

high risk of injury due to the fact that the seat for the abrasive file has a recess of 0.2-0.5 mm. Along the edge of the disk there is a protrusion (metal edge) 0.5 mm high and 0.5 mm wide, which forms the file seat. The abrasive files used, attached to the working surface and the most common on sale, have a thickness of 0.2-0.3 mm, regardless of the grain size (grit) of the surface of the working file. Thus, if there is a restrictive bead along the edge of the disk (metal edge) 0.2 mm high and 0.5 mm wide and the thickness of the file exceeds the height of the bead, when processing the surface of the nail or skin, the rapidly rotating edge of the file can lead to a cut, and a large bead width with a sufficiently long operating time will lead to the fact that the metal surface of the disk, which has sharp edges, will begin to be used. Working with such a disk will require the master to accurately position the surface of the tool with the attached file to the surface being processed, monitoring the thickness of the attached file and the presence of file edges protruding above the shoulder, otherwise this can lead to injuries, and the presence of a metal shoulder 0.5 mm wide with sharp edges during the work of the master will result in uneven surface treatment, which can cause overheating (burn), injury or poor-quality processing.

Low ergonomics: changing glued abrasive files with undefined, minimum hole diameters specified in the description (RF patent No. 197521) requires the use of auxiliary tools or devices that must be additionally included in the master’s kit, subjected to sterilization treatment and stored in packaging for each new client . This circumstance does not allow the master to quickly change the abrasive file, and, if necessary, change the grit of the abrasive file according to the required processing technology, which increases labor intensity, reduces productivity and ease of use of this tool for the master.

Disclosure of utility model

The technical problem to be solved by the claimed utility model is to increase the convenience and ease of working with the attachment for the master, as well as to eliminate the shortcomings of analogues.

The technical result is to increase the usability of the device.

To achieve the specified technical result, the inventive attachment for a manicure and pedicure apparatus contains a rod that is inserted and clamped into the handle of the apparatus, and a platform for attaching an abrasive file, made in the form of a disk with through holes.

Wherein

the disc shaft diameter is 2.33 mm;

the diameter of the through holes on the disk pad is 0.3 mm larger than the diameter of the disk rod;

the cleanliness of the metal processing of the platform and the rod corresponds to the value

the platform for attaching the abrasive file is made with a recess that forms a rim 0.5 mm thick along the perimeter;

the length of the rod and the diameter of the rod are designed in such a way that the ratio L/D=15.5, where L is the length of the rod, D is the diameter of the rod.

The claimed solution is illustrated by drawings.

Figure 1 shows a top view and a side view (with a cut in the center) of a nozzle for a manicure and pedicure apparatus,

Where

A - disk;

B - disk rod;

1 - recess for a replaceable abrasive file;

2 - radius rounding of the disk;

3 - radius rounding at the rod;

4 - radius rounding of the side;

5 - holes.

Implementation of a utility model

The description of the implementation of a utility model can be used as an example for a better understanding of its essence and is presented with reference to the figure attached to this description. At the same time, the details given below are not intended to limit the essence of the utility model, but to make it clearer.

The attachment for a device for manicure and pedicure contains a rod B, which is inserted and clamped into the handle of the device, and a platform for attaching an abrasive file, made in the form of a disk A with through holes 5.

The diameter of the disk rod B is 2.33 mm, which ensures convenient and reliable installation of the disk rod B into the collet clamp of micromotors of devices from different manufacturers. When the diameter of the disk rod is less than 2.3 mm, the disk in the collet clamp of the micromotor will rotate, causing additional heating of the tool from friction and mutual increased wear, as well as instability of tool rotation (slippage), which leads to inconvenience in the work of the master when holding the tool, the need for frequent replacement nozzles, and can also lead to damage to the technician’s skin. If the diameter of the rod of disk B is more than 2.3 mm, it will be difficult for the master to insert the rod into the collet clamp of micromotors of devices from different manufacturers (very tight movement), or not possible.

The diameter of the through holes 5 on the pad of disk A for a replaceable abrasive file is larger than the diameter of the rod of disk B by 0.3 mm. This ratio of the diameter of the rod B and the diameters of the holes 5 in the pad A allows the master to remove a replaceable abrasive file with an adhesive base very simply - in one motion, pushing the rod of another similar attachment (prepared for working specifically with a given client) into the hole of the disc pad, peel off in this way the replacement abrasive file used. This statement is based on experimental data and real reviews from pedicurists specializing in hardware pedicure work: “When working with a manicure and pedicure device attachment, periodic replacement of replaceable files is required, depending on the grittiness and wear of the working file. The files have an adhesive base for attaching to the disk surface. Discs from other manufacturers have holes on the surface of the disc through which you can use improvised means to help peel the disc off the surface and then remove it. Some companies' discs do not have such holes at all. However, on the disks of the experimental KANE model, the diameter of the holes on the disk is larger than the diameter of the rod of the disk itself in such a ratio that the rod easily fits into the hole on the disk. Having a disk on the master’s desktop that was used with the client and is not yet in use, with the rod of such a disk you can help yourself peel the file from the surface of the disk by pushing it through the holes. Thus, the ergonomics of the master’s work is improved, and there are no unnecessary items or consumables in the workplace.”

The cleanliness of the metal processing of platform A and rod B corresponds to the value which ensures a uniform surface roughness of the tool, sufficient to ensure that the tool does not slip out of the hands of a master wearing disposable gloves, even if there are lubricating creams and suspensions on them.

In accordance with the requirements of GOST 19126-2007 "Medical metal instruments. General technical conditions" requirements for surface roughness must be established in documentation - standards, working drawings, technical specifications for the product. In accordance with clause 5.4 of the specified GOST, in standards and technical conditions for specific types of tools, surface roughness parameters must be specified in accordance with GOST 2789-73, taking into account the functional purpose, design, material and ensuring corrosion resistance. GOST 2789-73 2 “Requirements for surface roughness” must be established based on the functional purpose of the surface to ensure. given quality of products. It was experimentally established that the uniform roughness with the cleanliness of the metal processing of the platform and the rod corresponds to the value provides increased convenience for the master’s work due to the following circumstances:

the polished surface provides better grip on the fingers of the master who works in latex gloves and prevents the tool from slipping out of the hands, especially if oils or creams are used in the work. The polished surface is more slippery;

micro-irregularities on the polished surface create air movements that allow particles of the material being processed to be removed without accumulating them. Smooth polishing accumulates all the particles of the epidermis removed as a result of work, wet from the applied oils and softeners, which interferes with the work of the master;

The polished surface dissipates heat well from the friction of the tool against the material. A polished tool heats up faster, which impairs your grip and can lead to burns;

The matte texture of the polishing does not create glare that blinds the artist’s eyes in bright light. Polished surfaces are highly reflective;

The roughness on the ground surface is less susceptible to corrosion and oxidation, which must undergo constant heat treatment. Polished instruments require special care. In the article Khomyakov A.P., Leshchiner V.R. “Roughness of working surfaces of tools” Bulletin of Mechanical Engineering, No. 11 2017, based on experimental data, the advantage of ground surfaces with optimal roughness for metal-cutting tools is also shown - such tools have greater wear resistance and service life.

The article “Choosing the surface roughness of a metalworking tool” https://www.tstu.ru/r.php?r=obuch.book.elib3&id=5&year=2018 describes an experiment comparing the cutting properties of drills at different surface roughnesses. The experiment showed better durability of ground drills (2-2.5 times higher) compared to polished ones. Discs for hardware pedicure work also belong to rotating tools, similar to tools for metalworking.

In addition, here is a review from a pedicurist who specializes in hardware pedicure: “When working with a client wearing gloves, after treating the client’s feet with ointments and/or oils, discs from other manufacturers tend to slip out of the hands when opening a package with discs, and especially this one the effect manifests itself when changing disks of different sizes on the micromotor of the device. The experimental disk of the KANE model has a less slippery surface that is easier to hold, which is due to its roughness, which is ensured by the processing of the surface of the disk and the disk rod. At the same time, external attractiveness is not lost. The disc has a matte metallic color, uniform over the entire surface.”

The platform for attaching the abrasive file A is made with a recess 1, forming a perimeter edge 4 with a thickness of 0.5 mm. The smaller thickness of the side (less than 0.5 mm) leads to the fact that the glued file with abrasive protrudes beyond the edges of the disk, thereby forming a sharp edge, which greatly interferes with the master when working with the nozzle - it is necessary to constantly monitor the position of the disk in relation to the surface being treated, to avoid damage to the client’s skin - deep cuts and incisions. The large thickness of the side (more than 0.5 mm) will also lead to the fact that the master will not be comfortable working with the nozzle: the side will protrude above the abrasive working surface and touch the foot during processing. When working with the nozzle, the master also needs to closely monitor his every movement in order to avoid accidental damage. When working with discs from various manufacturers, it is necessary to very accurately maintain the angle of inclination of the disc, which is quite difficult when there is a large volume of work, leading to increased fatigue for the technician and making mistakes in the work.

Thus, with the specified thickness of the side, the ease of use of the nozzle increases and the fatigue of the master is reduced.

The edge 4, formed along the perimeter of the platform, is made rounded, and the radius of the rounding is equal to half the width of the edge, which eliminates injury when working with the tool.

The lower edge of disk 2 also has a radius rounding.

The length of the rod and the diameter of rod B are made in such a way that the ratio L/D = 15.5, where L is the length of rod B, D is the diameter of rod B, which provides the tool with additional ease of use due to the uniform rotation of the nozzle in the apparatus without beating and heating, eliminates possible deformation of the rod due to excessive length due to temperature changes during the sterilization process or uneven loads during operation. It has been experimentally established that when the ratio of the length of rod B to the diameter of rod B is greater than 15.5, when using the tool, its slight deformation occurs, which, however, during long-term operation, causes the tool to run out during rotation, which leads to premature output of the device’s motor out of order, causes vibration pain in the master, which leads to increased hand fatigue and possible occupational diseases. This effect of curvature and/or beating during work does not appear in the experimental KANE model.

The functioning of the inventive attachment for a manicure and pedicure apparatus occurs as follows. The attachment for the manicure and pedicure apparatus is inserted into the apparatus, and replaceable abrasive files are glued to the attachment. The device rotates the nozzle, due to which either sawing or grinding is performed. After work, the abrasive files are removed and thrown away, as they are disposable. The metal nozzle itself is sterilized and disinfected after use.

Thus, increased ease of use of the device is ensured by the fact that the inventive attachment for a manicure and pedicure apparatus contains a rod that is inserted and clamped into the handle of the device, and a platform for attaching an abrasive file, made in the form of a disk with through holes. In this case, the diameter of the disk rod is 2.33 mm; the diameter of the through holes on the disk pad is 0.3 mm larger than the diameter of the disk rod; the cleanliness of the metal processing of the platform and the rod corresponds to the value

the platform for attaching the abrasive file is made with a recess that forms a rim 0.5 mm thick along the perimeter; the length of the rod and the diameter of the rod are made in the ratio L/D=15.5, where L is the length of the rod, D is the diameter of the rod.

Claims (6)

A nozzle for a device for manicure and pedicure, containing a rod that is inserted and clamped into the handle of the device, and a platform for attaching an abrasive file, made in the form of a disk with through holes, characterized in that the diameter of the disk rod is 2.33 mm; the diameter of the through holes on the disk pad is 0.3 mm larger than the diameter of the disk rod; the cleanliness of the metal processing of the platform and the rod corresponds to the value the platform for attaching the abrasive file is made with a recess that forms a rim 0.5 mm thick along the perimeter; the length of the rod and the diameter of the rod are made in the ratio L/D=15.5, where L is the length of the rod; D is the diameter of the rod.