RU214758U1 - Teething device for children - Google Patents

Abstract

The utility model relates to the field of pediatrics. A child teething device comprises a central assembly to which are associated elements used to interact with gum tissue in the child's mouth. This assembly is made in the form of two elements of a three-dimensional hollow form made of ABS plastic, each of which is made of two integrally connected parts, on the connection line of which through holes are made at a distance from each other. Elements used for interaction with gum tissue are made in the form of a frame made of low-density high-pressure polyethylene, inside which in the plane of the frame there are bridges made integral with the frame. The free ends of the frame and bridges are each made with an annular groove of a smaller transverse dimension than the transverse dimension of the end or bridge, and behind each annular groove there is a boss, the transverse dimension of which is greater than the transverse dimension of the groove and less than the transverse dimension of the through holes. The transverse size of each annular groove is made no more than the transverse size of the through hole in the elements of the three-dimensional hollow form. The frame with crossbars is made flattened. The free ends of the frame and crossbars are inserted into through holes in the elements of a three-dimensional hollow form with the bosses located in the cavity of these elements. In this case, the frame is made in the form of an element of an open annular shape, in which the elements of a three-dimensional hollow shape are located between the free ends of the frame in the places of its openness. 11 ill.

Description

The utility model relates to the field of pediatrics and can be used to facilitate teething in children. In particular, we are talking about the design of such a device as a teether, which is often also called a teether.

The appearance of milk teeth is a little more difficult than permanent ones, since the baby has not yet encountered pain and cannot realize what is happening to him. Teething in children under one year old is accompanied by fever, swelling of the gums, neurosis, tearfulness, anxiety, poor sleep and whims. Often in children, when teething, the gums swell, the holes itch, and there is a desire to chew hard objects. It is important not to let the child damage the mucous membrane, it is better to use a special teether to relieve discomfort. In the question of the use of teethers, as a gentle means to reduce discomfort. It is recommended to give the child to chew on chilled pacifiers, teethers, since only exposure to cold has proven effectiveness. Cold causes vasospasm, reduces swelling and inflammation in the gums, and, as a result, pain temporarily subsides. The effect is short-lived, but still there.

When he has front incisors, the best option is soft teethers made of silicone, not too hard rubber or latex with rounded shapes. It is important that the mouthpiece has a hole that is convenient for small hands to grip. To stimulate the eruption of premolars, products of medium hardness and oval shape are suitable. They should have lateral ridges that stimulate the gums in children. Children who develop molars need hard teethers - thin and long.

But for any product, first of all, the safety of the material from which it is made is important. Children's teeth are very sharp, so the teether must be strong, and its shape must be streamlined, without protruding sharp corners (https://vyboroved.ru/reyting/luchshie-prorezyvateli-dlya-zubov).

The use of a teether provides the child with a massage of inflamed gums, distraction of attention (and hence the removal of anxiety), cooling of irritated areas (models with liquid inside) and removal of puffiness, development of tactile sensations and color perception.

A teether is a special toy made in such a way that the baby can bite and gnaw it, thereby reducing itching and pain in the gum tissues. (https://www.adent.ru/prorezyvatel-dlja-zubov). The general requirements for the quality of such devices are quite simple: the toy must be made from safe materials that have successfully passed all the necessary studies; the teether should not be too hard; the device should not have sharp edges and corners that can injure the baby; the child should be comfortable holding the toy in his hands (https://www.adent.ru/prorezyvatel-dlja-zubov).

For teethers, it is important to make them in bright colors that attract the attention of the child. It is known that the baby's eyes are not too sensitive to bright colors, so he falls asleep so easily even in rooms with the lights on. Over time, the baby learns to distinguish dark colors from light ones, and at the age of several months he already recognizes the entire rainbow spectrum. The baby cannot yet distinguish between shades, so most rattles, teethers and other children's toys are made in simple bright colors. Moreover, it is the brightness that attracts children: studies have shown that the baby looks at green, red, blue and purple toys much longer than at brown and gray ones. Even small children like it when there are a lot of bright colors. They prefer multi-colored toys to a plain toy (https://gnk-shop.ru/blog/statiy/detskie-lyubimye-tsveta-i-chto-oni-govoryat-o-nashikh-detyakh?ysclid=l1qkskm34n).

Thus, a device for teething in children is known, made entirely of a rubber-like mass and including a central element (base element) in the form of a hollow thin-walled sphere made of two hemispheres, inside of which there is a bell enclosed in a sphere-like shell, which is spiked rests against the inner surface of the wall of the sphere, in addition, on one hemisphere two semi-rings are fixed or made integral with it, the end parts are connected to the outer surface of the hemisphere so that these semi-rings are placed in the same plane, and on the other hemisphere they are connected or made integral with it arc-shaped elongated protrusions, the free ends of which are rounded and smoothed, while these ends are facing towards each other, and the protrusions are placed in a plane perpendicular to the plane of the semirings (CN 208693821, A61J 7/02https://ru.espacenet.com/publicationDetails/biblio ?DB=EPODOC&II=0&ND=3&adjacent=true&locale=ru_RU&FT=D&date=2019040 5&CC=CN&NR=208693821U&KC=U, publ. April 5, 2019).

A feature of this teether is that the elongated protrusions are made with a smooth surface and are used as elements that the child can insert into the mouth, and the half rings, which are used by the child as handles to hold the device, are made with small protrusions on the surface: in the form of round cones, on the other - in the form of concave rings.

In general, the well-known teether is a three-dimensional toy in the form of a ball, from which elements extend in all directions, which the child can use in his mouth or hold with a pen.

This decision was taken as a prototype.

The disadvantage of this teether lies in the technological complexity of its manufacture and in the fact that the shape of such a teether belongs to three-dimensional structures developed in all directions, which a child of 3-5 months is not perceived either as toys or as an object that attracts attention.

The central element in the form of a hollow thin-walled sphere, composed of two hemispheres, is a molded thin-walled shell. And the elements attached to it in the form of arc handles or arcuate protrusions are full-bodied elements with a transverse dimension significantly exceeding the thickness of the sphere shell. Such elements cannot be molded integrally with the shell of the sphere, since the configuration of their mutual arrangement does not allow creating such a mold or injection mold from which the molded product can be removed. Consequently, and this can be seen in the illustrations to CN 208693821, all elements are fixed on the surface of the shell, which can be done by vulcanization or the use of adhesive compositions. In general, the design is laborious from a technological point of view and requires additional operations to assemble it into a whole.

In the field of pediatrics, the fitness of teethers and rodents is assessed from the standpoint of their attractiveness to the child and the convenience of their use by the child. Based on research and analysis, it has been established that in the ranking of tens to fifteen best teethers, only those teethers are considered, the shape of which is flattened like a flat rattle and is not volumetrically developed. A child who is less than a year old does not have the ability to make a conscious choice, but has the ability to grab and hold in his hand what is easier to grab, without understanding the design of those elements for which the child grabbed the toy. In a known solution, certain elements are consciously used as elements that the child must consciously grasp to hold the teether, while others must be put into the mouth by the child. For a child at this age, the functional affiliation of the elements of a toy or a teether does not exist. This is a concept for adults, that is, an adult must correctly deploy the teether so that the child correctly grabs what is a pen and correctly puts the arched protrusion into his mouth. At the moment of feeling pain from teething, the child behaves restlessly and does not control the importance of these actions.

In order for the teether to realize the function assigned to it (massage, relieving itching, cooling the gum tissues), it is necessary that the child be interested in receiving the teether as a toy, grab it himself, without understanding what he grabbed the toy for, and put it in his mouth, without determining whether he did it with the right side of the toy. Only in this case, the effect of using the teether will be as pronounced as possible and will allow you to calm the child and distract him from pain.

The well-known teether solution is also used as a rattle due to the location of a rigid shell sphere with a bell inside in the cavity. Thus, compositionally, the central element is made in the form of a shell of soft material, and the shell for the bell is made of hard material to provide sound as a result of the bell hitting the wall of the hard shell. This is a complex structure.

This utility model is aimed at achieving a technical result, which consists in simplifying the design in order to increase its manufacturability and bring it to a flattened form, which the child intuitively chooses in the first place.

The specified technical result is achieved by the fact that in a device for teething in children, containing a central node, with which the elements used to interact with the gum tissue in the child's mouth are connected, the central node is made in the form of two elements of a three-dimensional hollow form made of ABS plastic, each of which it is made as a composite of two permanently connected parts, on the connection line of which through holes are made at a distance from each other, and the elements used to interact with the gum tissue are made in the form of a frame made of high-pressure low-density polyethylene, inside which in the plane of the frame are placed made integral with the jumper frame, the free ends of the frame and jumpers are each made with an annular groove of a smaller transverse size than the transverse dimension of the end or jumper, and carry a boss behind each annular groove, the transverse dimension of which is greater than the transverse dimension of the groove and less than the transverse dimension of the through holes, the transverse size of each annular groove is made no more than the transverse size of the through hole in the elements of the three-dimensional hollow form, the frame with crossbars is made flattened with the thickness of the frame and bridges of a smaller width of these elements in the plane of the frame, the free ends of the frame and crossbars are inserted into the through holes in the elements of the three-dimensional hollow forms with the location of the bosses in the cavity of these elements, while the frame is made in the form of an element of an open annular shape, in which the elements of a three-dimensional hollow form are located between the free ends of the frame in places of its openness.

In this case, the ring-shaped frame can be made in the form of one part or in the form of two separate parts connected to each other by two elements of a three-dimensional hollow form.

The device is additionally provided with flower-shaped elements made of high-pressure low-density polyethylene, each with open petals, which are fixed on the bridges at the point where their free ends enter through holes on the elements of a three-dimensional hollow form. Or it is additionally equipped with flower-shaped elements made of low-density high-pressure polyethylene, each with open petals, which are fixed on elements of a three-dimensional hollow form. Or it is additionally equipped with elements made of low-density high-pressure polyethylene in the form of flowers with open petals, made with a transverse dimension larger than the transverse dimension of the elements of a volumetric hollow form.

In addition, the surfaces of the open petals are embossed.

All "or" in the specified features of the execution of the device can be considered in combination "and / or".

These features are essential and are interconnected with the formation of a stable set of essential features sufficient to obtain the desired technical result.

This utility model is illustrated by specific examples of execution, which, however, are not the only possible ones, but clearly demonstrate the possibility of achieving the required technical result.

In FIG. 1 - general view of the teether in axonometric view, the first example of execution;

fig. 2 is a side view of FIG. one;

fig. 3 is a longitudinal section of the teether according to FIG. one;

fig. 4 is a general view of the teether frame in the form of a single piece according to FIG. one;

fig. 5 - general view of a part of the central element of a spherical shape in an axonometric view;

fig. 6 is a longitudinal section of the element according to FIG. 5;

fig. 7 is a section A-A according to FIG. 6;

fig. 8 - general view of the teether in axonometry, the second example of execution;

fig. 9 is a side view of FIG. eight;

fig. 10 is a longitudinal section of the teether according to FIG. eight;

fig. 11 is a general view of the teether frame, made of two parts, according to FIG. eight.

According to the present utility model, a new design of a device is considered, which is a means for reducing discomfort during the growth of teeth in a child up to a year of his life. This device is called a teether or a teether.

In general, the device (FIGS. 1 and 8), like a teether for children, contains a three-dimensional hollow-shaped assembly with which are connected elements used to interact with the gum tissue in the child's mouth. This assembly is made in the form of two elements of a three-dimensional hollow shape made of ABS plastic, each of which is made of two permanently connected parts, on the connection line of which through holes are made at a distance from each other. Elements used for interaction with gum tissue are made in the form of a frame made of low-density high-pressure polyethylene, inside which in the plane of the frame there are bridges made integral with the frame. The free ends of the frame and bridges are each made with an annular groove of a smaller transverse dimension than the transverse dimension of the end or bridge, and behind each annular groove there is a boss, the transverse dimension of which is greater than the transverse dimension of the groove and less than the transverse dimension of the through holes. The transverse size of each annular groove is made no more than the transverse size of the through hole in the elements of the three-dimensional hollow form. The frame with crossbars is made flattened. The free ends of the frame and crossbars are inserted into through holes in the elements of a three-dimensional hollow form with the bosses located in the cavity of these elements. In this case, the frame is made in the form of an element of an open annular shape, in which the elements of a three-dimensional hollow shape are located between the free ends of the frame in the places of its openness.

A feature of the claimed utility model is the combination of preferably hard ABS plastic and soft LDPE plastic to improve the visual image and increase the functionality of the product. The combination of materials makes it possible to vary the selection of colors and tactile sensations.

The spherical or ovoid elements of the volumetric shape of the central node act as a connecting rigid node for the softer parts of the frame (acting as the body of the device) of the teether. The bosses made on the frame are inserted into the holes of the bulk elements of the central unit and provide rigid fastening to it. The bosses are clamped in the halves of the element (for example, hemispheres), which are then fastened together, without the possibility of disassembling the connection. Structural elements (bosses) responsible for connecting the parts are made taking into account the exclusion of the possibility of pulling out or pulling out the soft parts of the teether. The shape of volumetric hollow elements (spherical and ovoid) is due only to the design, taking into account the desire to make a solid structure. But it can be, for example, another body of revolution.

To reduce the risk of injury, the hard central element is surrounded as much as possible by a softer element in the form of a flower, which also performs the function of a teether holder. On the flower petals, which are attached to the central element and to the frame, various patterns are made in the form of a textured (embossed) surface. In addition to the decorative component, they facilitate the process of teething, they can be chewed.

In addition to the design of the safety elements, the teether is made with a flattened frame, which allows the child to grab the device anywhere, as he intuitively does with regard to the rattle. The rattle function can be easily implemented in the device by placing a musical ball or two balls ringing from impacts from each other in the cavity of the central element.

Below are the constructions of the utility model in the first (Fig. 1-7) and second (Fig. 8-11) implementation examples.

For both examples of execution, the device (Fig. 1 and 8), as a teether for children, contains two basic elements: a frame 1 and a central assembly made in the form of two elements 2 of a volumetric hollow shape, for example, in the form of a hollow body of rotation each (ball , ellipsoid, egg-shaped). These elements 2 are made of a rigid polymeric material, preferably ABS plastic. The central node is made of hard plastic, as it is a supporting holder for the elements of a soft frame, which is positioned relative to this support. The choice of an ABS-type polymer is due to the fact that the central element must be strong and retain its shape well under pressure and fall. This node is the connecting link between the frame parts, which positions the frame elements in the flattening plane and perceives all dynamic loads from the frame deformation. ABS plastic is resistant to alkalis and detergents, oil and acid resistant, which is very important, since teethers are necessarily subjected to sanitary and hygienic treatment before each use. Does not change its properties at low temperatures, including in the freezer of the refrigerator. It is also significant that this type of polymer is non-toxic and approved for use in children's toys and children's designers. In the claimed utility model, the elements 2 of the central assembly are surrounded by safety elements and therefore the child cannot bite them or rub the gum tissue with them.

Each element 2 is made up of two permanently connected parts 3 (Fig. 5-7). Both parts 3 of each element 2 are hemispherical shells, each of which has a cylindrical hollow protrusion carrying on the inner surface a connection element with a mating element of the lock on the cylindrical hollow protrusion of the other hemisphere. Both parts 3 have positioning elements relative to each other, which exclude rotation of the parts. These positioning elements can be made according to the tenon-groove principle. The inseparability of the connection of parts 3 can be ensured both by locking the elements of both parts, and by ultrasonic welding. After the two parts are aligned, they are connected using ultrasonic welding. During the welding process, the positioning elements are melted, providing a reliable one-piece connection of both parts. In addition, on the connection line of the parts 3, through holes 4 are made at a distance from each other, which are used to attach the soft elements of the frame and the elements of protection of the central assembly from the teeth of the child and to prevent injuries to the gum tissues. Within the framework of this utility model, these protective elements are made in the form of flattened flowers 5 with petals 6, also made of LDPE.

Frame 1 for each embodiment is made of high-pressure low-density polyethylene (LDPE or LDPE), which is softer, but holds its shape well at room temperatures. In general, the frame 1 is an open (Figs. 4 and 11) contour of any external shape, obtained by molding or casting and representing a flat (flattened) polymer part 7 in the form of an open ring for the example of Figs. 1 and made of two separate pieces for the fixture of FIG. 8. Jumpers 8 are located inside the frame, as additional elements. These jumpers can be placed in any configuration, including imitating colors or symbols. Jumpers are made simultaneously with the annular contour of the frame during molding or casting. In cross section, the contour elements and internal lintels are smoothed at the corners, without pointed parts. The outer surface of the contour elements and internal bridges can be made smooth, or corrugated, or with small pimples in height, by analogy with the surfaces of conventional teethers that are widely present on the market.

The choice of high pressure low density polyethylene (LDPE or LDPE) is due to the fact that it is insoluble at room temperature and does not swell in any of the known solvents. Flexible and elastic material. Not afraid of low temperatures and does not become brittle in the cold. In contact with food products, LDPE does not emit harmful substances. Non-toxic, biologically inert. It is included in the list of polymers approved by SanPiN for the manufacture of plastic toys, as it is almost harmless (the most harmless), and it releases formaldehyde only when heated and during decomposition.

In FIG. 4 shows an example of a frame in the form of an open ring. The free ends of the part 7, which forms the perimeter of the frame, face each other and are each made with an annular groove 9 of a smaller transverse dimension than the transverse dimension of the free end, and behind each groove there is a boss 10, the transverse dimension of which is larger than the transverse dimension of the groove 9. In this example execution of the teether, the central volumetric element 2 is placed between the free ends of the frame. When assembling the fixture, one part 3 of the central element 2 is installed between the ends and the free ends are laid so that the bosses 10 are inside the part 3, and the annular grooves are laid on the walls of the through holes. Then the second part 3 is laid on top of the first part 3 and fixed with an internal locking connection. The free ends of the grooves remain in the holes resting on the walls of the holes, and the bosses do not allow the free ends to come out of the holes, since their transverse dimension is larger than the transverse dimension of the through hole.

Jumpers arranged with interlacing so that they form either a pattern or a symbolic image of an object also have a free end 11 or a protruding element on the side facing the elements 2 of the volumetric shape of the central node, the end part of which is made in the same way as free ends of part 7, that is, with an annular groove and a boss. When assembling, the annular groove and the boss are placed in the through hole of the element 2 in the same way as it is done in relation to fixing the free ends of the part 7.

Since the transverse dimension of the boss is larger than the transverse dimension of the through hole, it is sufficient that the transverse dimension of each annular groove is not greater than the transverse dimension of the through hole in the elements 2 of the central assembly. This allows you to place the free ends of the frame and jumpers in the through holes of element 2 with the location of the bosses in the cavity of this element. As a result, the design of the device acquires a spatially stable form and becomes inseparable for the child.

Since the teether is used in the child's mouth, it is necessary to ensure the safety of the product, in particular, to exclude the possibility of biting the central element and its destruction. For this purpose, safety/protection elements are used in the teether in the form of flattened flowers 5 with petals 6. The flower itself is fixed with clip elements in a hole in the central element or is mounted on the free end of the part 7 or the free end 11 of the jumpers and thus closes the element 2. In this case, the LDPE element in the form of a flower with open petals is made with a transverse dimension greater than the transverse size of the central element, which excludes the possibility of gum tissue access to the rigid element 2. However, LDPE flowers can be used as elements for gum massage. In this case, the surfaces of the open petals can be embossed.

Elements in the form of flowers 5 with open petals 6 can be fixed on the lintels at the point where their free ends enter the through holes on the elements 2 of a three-dimensional hollow form. Or these elements in the form of flowers 5 with open petals 6 can be fixed on the elements 2 of a three-dimensional hollow form. Elements of low-density high-pressure polyethylene in the form of flowers with open petals are made with a transverse dimension greater than the transverse dimension of the elements 2 of a volumetric hollow form.

The annular frame 1 can be made in one piece, as shown in FIG. 4, or in the form of two separate parts 12 connected to each other by two elements of a three-dimensional hollow form, as shown in FIG. 11. A feature of providing a three-dimensional shape of the teether is that it uses two elements 2 of a three-dimensional shape. This allows you to rigidly connect the free ends of the frame and jumpers so that the frame always maintains a planar arrangement for any thickness of parts 7 and jumpers. This decision was made due to the fact that the thickness of the frame and jumpers is less than the width of these elements in the plane of the frame elements (Fig. 2 and 9).

When part 7 of the frame is made in the form of an open ring (Fig. 4), protrusions 11 are made on the frame on its inner side on the jumpers, the free ends of which end with an annular groove 9 of a smaller transverse size than the transverse size of the free end, and carry a boss 10 behind each groove , the transverse dimension of which is greater than the transverse dimension of the groove 9. In this example of the execution of the teether, the three-dimensional elements 2 are placed in the gap of the parts 7 of the frame 1 and between the free ends of the protrusions 11. so that the bosses 10 are inside these parts 3, and the annular grooves are laid on the walls of the through holes. Then the second parts 3 are laid on top of the first parts 3 and fixed with an internal locking connection.

As protection elements, flattened flowers 5 with petals 6, made of PVD with a smooth or embossed surface of the petals, are also used.

The frame can be made of two parts 12, carrying jumpers 8 (Fig. 11). Technologically, such a design is simpler than the molding of a part with a complex configuration according to Fig. 4. The free ends of each element on one such part 12 end with an annular groove 9 of a smaller transverse dimension than the transverse dimension of the free end, and carry a boss 10 behind each groove, the transverse dimension of which is larger than the transverse dimension of the groove 9. For this example of the execution of the teether, three-dimensional elements 2 are placed between the parts 12 of the frame 1 and between all the free ends with bosses. When assembling the fixture, one part 3 of volumetric elements 2 is installed between the free ends and the free ends are laid so that the bosses 10 are inside these parts 3, and the annular grooves are laid on the walls of the through holes. Then the second parts 3 are laid on top of the first parts 3 and fixed with an internal locking connection.

The utility model is industrially applicable, allows to simplify the design and improve its manufacturability in relation to the prototype. At the same time, such performance features as the flattening of the frame and its implementation with jumpers provide convenience for the child himself, taking into account his grasping abilities at this age. The use of two types of polymeric materials for different elements of the teether provides spatial strength and preservation of the shape of the product, while the design makes it possible to put the teether into the mouth only with the part that is made of LDPE.

Claims (7)

1. A device for teething in children, containing a central assembly with which are connected elements used to interact with the gum tissue in the child's mouth, characterized in that the central assembly is made in the form of two elements of a three-dimensional hollow form made of ABS plastic, each of which is made of two permanently connected parts, on the connection line of which through holes are made at a distance from each other, and the elements used to interact with the gum tissue are made in the form of a frame made of high-pressure low-density polyethylene, inside which, in the plane of the frame, integral with a jumper frame, the free ends of the frame and jumpers are each made with an annular groove of a smaller transverse size than the transverse dimension of the end or jumper, and behind each annular groove, the boss is carried, the transverse dimension of which is greater than the transverse dimension of the groove and less than the transverse dimension of the through holes, the transverse dimension of each stake the end groove is made no larger than the transverse dimension of the through hole in the elements of the volumetric hollow form, the frame with crossbars is made flattened with the thickness of the frame and bridges of a smaller width of these elements in the plane of the frame, the free ends of the frame and crossbars are inserted into the through holes in the elements of the volumetric hollow form with the arrangement bosses in the cavity of these elements, while the frame is made in the form of an element of an open annular shape, in which the elements of a three-dimensional hollow shape are located between the free ends of the frame in places of its openness. 2. Device according to claim 1, characterized in that the ring-shaped frame is made in the form of one piece. 3. The fixture according to claim 1, characterized in that the ring-shaped frame is made in the form of two separate parts connected to each other by two elements of a three-dimensional hollow form. 4. The device according to claim 1, characterized in that it is equipped with elements of low-density high-pressure polyethylene in the form of a flower with open petals each, which are fixed on the bridges at the point where their free ends enter the through holes on the elements of a volumetric hollow form. 5. Device according to claim. 1, characterized in that it is equipped with elements of low-density high-pressure polyethylene in the form of a flower with open petals each, which are fixed on the elements of a volumetric hollow form. 6. The device according to claim 1, characterized in that it is equipped with elements of low-density high-pressure polyethylene in the form of flowers with open petals, made with a transverse dimension greater than the transverse dimension of the elements of a volumetric hollow form. 7. Device according to claim. 1, characterized in that it is equipped with elements of low-density high-pressure polyethylene in the form of flowers with open petals, the surfaces of which are embossed.

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