FIELD OF THE INVENTION

This invention is generally related to adjustable child carrier systems comprising an adjustment system and, in particular, to child carrier systems comprising a progressive connection and adjustment system that allows a simultaneous adjustment of the dorsal support panel both lengthwise and widthwise, so as to ensure a correct ergonomic position of the child.

CURRENT STATE OF THE ART

Several child carrier systems including several partial adjustability solutions are known at the current state of the art. One of the systems known in patent literature, filed under patent no. US8701949B1 , allows the seating to be adjusted in steps, but there are large distances between the possible arrangement positions of the system seating, so that, in several stages of child growth, the presented system seating, when set in one of the positions presented in the literature of the said patent, is either too small or too large for a certain age and it cannot be adjusted millimeter by millimeter as the child grows. Ergonomics, determined by how a child's bottom is supported from the back of one knee to the back of the other knee, is not observed when this distance does not match the adjusted preset size of the child carrier system seating. That is why it is extremely important that the adjustment should not be made in stages, in steps, but it should be achievable precisely for the size of each age.

In addition, the ergonomics of baby carrying involves another equally important concept: namely, an ergonomic baby carrier must support the baby's spine and back up to the neck, which highlights the importance of height adjustment for dorsal panels.

As regards the height adjustment of the dorsal panel to the exact size of a child's back, patent literature includes patent no. US2015069097A1 , which allows the height of the dorsal panel to be adjusted at the top, using some mechanisms (either buckle straps, or ringed straps, or knotted strings, etc.), which are positioned either at the top of the dorsal panel, or at the junction between the dorsal panel and the shoulder straps, or along the length of the dorsal panel, which can create discomfort for the child's back or shoulders, where this fastening is made. In addition, many babies suck or chew on this very top part of the baby carrier system when they are teething; that is why the most recommended area for height adjustment is at the bottom of the dorsal panel, leaving the top clean and free from troubling elements.

Disadvantages of the state of the art

The current state of the art for baby carrier systems does not propose complete adjustability systems for different shapes of children that also abide by well-established medical principles and ergonomics rules and are easy to understand and adjust.

Baby carrier systems at the current state of the art do not allow a progressive adjustment of the width and length of the dorsal support panel, but only an adjustment in steps, which most often do not match the size and shape of a child at various growth stages.

Baby carrier systems at the current state of the art do not allow a simultaneous adjustment of the dorsal support panel both lengthwise and widthwise.

Baby carrier systems at the current state of the art do not allow positioning a child in the carrier without creating internal stresses in the dorsal support panel by forces exerted on the dorsal panel in the strapping area.

Technical problem

The objective of this invention is to provide a child carrier system that allows a progressive and simultaneous adjustment of the width and height of the dorsal support panel without creating internal stresses and adapts to the progressive growth of any child ensuring the ergonomic position established in this field.

Disclosure of the invention

The child carrier system according to the invention solves the technical problem and eliminates the disadvantages presented above by the fact that it includes:

- a dorsal support panel configured to hold and support a child;

- some shoulder straps, at least one, attached to the upper side of the dorsal support panel, configured to position the straps on the shoulders of a user;

- a waist belt, attached to the lower side of the dorsal support panel, opposite to the side on which the shoulder straps are fastened, configured to be closed around the user's waist; - a waist belt coupling and closing system to fasten it on the user's waist;

- some fastening and closing systems to fix the length of the shoulder straps, configured to adjust and fix the length of the straps and to allow them to close without creating internal stresses in the dorsal support panel;

- a progressive connection and adjustment system for the dorsal support panel, including:

• a progressive connection element, attached to the said waist belt, having a length equal to the dorsal support panel and a width equal to the width of the waist belt;

• a plurality of complementary progressive connection elements positioned on the dorsal support panel, symmetrical with the vertical axis of the waist belt, so that:

the progressive connection and adjustment system of the dorsal support panel would be configured so that:

> by coupling the complementary progressive connection elements with the progressive connection element at various distances from the lower side of the dorsal support panel, it allows a progressive adjustment of the length of the dorsal support panel, and

> by coupling the complementary progressive connection elements with the progressive connection element at various distances, symmetrical with the vertical axis of the waist belt, it allows a progressive and simultaneous adjustment of the width of the dorsal support panel together with a progressive adjustment of the length of the dorsal support panel.

Advantages of the invention

The child carrier system according to the invention has several advantages, as follows:

- By adjusting the height of the dorsal panel simultaneously with the adjustment of the seating, the child carrier system will provide support for the child's spine and back up to the neck at any age, regardless of the size and shape of the child’s body at that age.

- By progressively adjusting both the seating and the dorsal panel, the child carrier system will allow a precise adjustment according to the size and shape of the child's body, so as to ensure an ergonomic position of the child.

- The system incorporates a construction solution which is extremely easy to use, the simultaneous connection and progressive adjustment system for the width and length of the dorsal support panel allows a simultaneous performance of all of the above-mentioned steps. - The system includes a way to adjust and fix the straps that allows them to close without creating internal stresses in the dorsal support panel.

DETAILED DESCRIPTION OF THE INVENTION

The following are, but not limited to, several examples of embodiments of the invention, in relation to the attached figures:

Fig.1 shows the carrier system, according to the invention, as seen from the front, when laid on a flat surface, having the belt opened towards the dorsal support panel; the progressive connection elements positioned on the belt and the complementary progressive connection elements positioned on the dorsal support panel are visible.

Fig.2 shows the carrier system in the example given in Fig.1 , as seen from the front and laid on a flat surface, having the belt connected to the dorsal support panel; the progressive connection elements positioned on the belt and the complementary progressive connection elements positioned on the dorsal support panel are not visible, as they remain hidden between the belt and the dorsal support panel.

Fig.3 shows the carrier system in the variant given in Fig.1 , as seen from behind, when laid on a flat surface, with the belt opened towards the dorsal support panel.

Fig.4 shows the carrier system in the variant given in Fig.1 , as seen from behind, when laid on a flat surface, with the belt connected to the dorsal support panel.

Fig.5 shows the carrier system in the variant given in Fig.2, as seen in spatial representation, from the front.

Fig.6 shows the carrier system in the variant given in Fig.2, as seen in spatial representation, from the side.

Fig.7 shows the carrier system in the variant given in Fig.2, as seen in spatial representation, from behind, with the straps crossed.

Fig.8 shows possible ways to fix and connect the carrier system, as seen from the front, where:

Fig.8.1 shows the simultaneous progressive adjustment system for the width and length of the dorsal support panel in a minimum position 5.1.1

Fig.8.2 shows the simultaneous progressive adjustment system for the width and length of the dorsal support panel in an intermediate position 5.1.2

Fig.8.3. shows the simultaneous progressive adjustment system for the width and length of the dorsal support panel in a maximum position 5.1.3 Fig.9 shows possible ways to adjust the carrier system, as seen from behind, where:

Fig.9.1 shows the simultaneous progressive adjustment system for the width and length of the dorsal support panel in a minimum position 5.1 .1

Fig.9.2 shows the simultaneous progressive adjustment system for the width and length of the dorsal support panel in an intermediate position 5.1 .2

Fig.9.3. shows the simultaneous progressive adjustment system for the width and length of the dorsal support panel in a maximum position 5.1 .3

Fig.10 shows an embodiment of the additional resistance created when the adjustment in the maximum position 5.1 .3 is used

Fig.1 1 connecting belt to hold the shoulder straps together.

Fig.12 shows the carrier system in the variant given in Fig.2, as seen in spatial representation, from behind, with the straps in a parallel position and the connecting belt for shoulder straps attached.

Fig.13 shows the carrier system in the variant given in Fig.2, as seen in spatial representation, from the front, with the child positioned on the hip.

Fig.14 shows the carrier system in the variant given in Fig.2, as seen in spatial representation, from behind, with the child positioned on the hip.

Fig.15 shows possible, but not limited to, ways to position the safety protection, where: Fig.15.1 The safety protection is positioned behind the female buckle member when the trident or male buckle member is opened.

Fig.15.2 The safety protection is positioned behind the female buckle member when the trident or male buckle member is closed.

Fig.15.3 The safety protection is positioned over the closed buckle, keeping it closed in case of an accidental opening.

Fig.16 shows variants of, but not limited to, the shoulder straps, where:

Fig.16.1 the straps are removable and fastened to the dorsal support panel with fastening elements.

Fig.16.2 the straps are removable, made of fabric, attached to the dorsal support panel with fastening elements.

Fig.16.3 the straps are fixed, made of fabric, being permanently fixed on the dorsal support panel.

Fig.17 shows variants of, but not limited to, the belt, where:

Fig.17.1 the belt system is detachable, padded with foam or not, having webbing with buckles.

Fig.17.2 the belt system is detachable, made of fabric, padded or not, with various ways of closing, for example: sling rings, D-rings, knot, etc.

Fig.18 side view of the operating method to close and open the simultaneous progressive adjustment system for the width and length of the dorsal support panel, similar to closing and opening a book.

Fig.19 shows the carrier system, as seen from the front, when laid on a flat surface, with the belt closed on the dorsal support panel, in an embodiment where the shoulder straps close in the belt.

Fig.20 shows the carrier system, as seen from the front, when laid on a flat surface, with the belt closed on the dorsal support panel, in an embodiment where the shoulder straps close in the dorsal support panel

Fig.21 correct dorsal support at the child's neck level, when a child’s neck muscles are not sufficiently developed; source: Google.

Fig.22 correct anatomical position of a child's back, in a C-shaped curve, source: School of Babywearing UK course manual.

Fig.23 correct anatomical position of a child's breech and knees, the M-position; source: http://hipdvsplasia.org·

The child carrier system according to the invention, as shown in Fig.1 , is made of several fixed or removable pieces, having some shoulder straps 1 attached to the wearer, to allow wearing a child or something else between the dorsal support panel 2 of the system and the wearer’s body, and a waist belt 3, which is fastened around the wearer’s body.

The dorsal support panel 2 may be substantially rectangular in shape and it may be placed with the long sides in a vertical position. In this invention, substantially rectangular shape means any shape that can be circumscribed by a rectangle, such as the shape of a rectangle with one or more curved sides, an oval.

Flowever, the dorsal support panel may have any other shape, mentioning that its lower side, which is connected to the waist belt 3, must be substantially rectangular in shape. At the top of the dorsal support panel 2, there are some shoulder straps 1 - at least one. The embodiment shown in Figure 1 is a child carrier system with two shoulder straps 1 attached, positioned at the ends of the upper side of the dorsal support panel, symmetrical to the vertical axis of the waist belt 3 and to the vertical axis of the dorsal support panel 2, respectively, in this case. They may also be attached to the upper side of the panel in a vertical or slant position in relation to the longitudinal axis of the dorsal support panel 2. These straps 1 can be permanently attached to the dorsal support panel 2 by sewing or other fastening or removable fixing means using the fastening mechanisms 9.1 and 9.2 shown in Figure 16.

They can be made of a textile fabric, padded with foam or sponge, wadding or other soft materials that can contribute to the wearer’s comfort or can reduce the weight felt on the wearer’s shoulders.

The straps 1 are also provided with lengthwise attaching elements 7.1 , close to the dorsal support panel, such as staples, snaps, buttons, hooks, clips or any other similar elements, having the role of joining in these points with the complementary attaching elements 7.2 placed on a hood 6.

The positioning of these attaching elements 7.1 is calculated so that, when the hood is fixed in the attaching elements 7.1 placed in the lower part of the straps, meaning the closest to the joint with the dorsal support panel 2, in a rolled or a wrinkled or a tightened position, it provides neck support.

The neck support plays a very important role in the ergonomics of healthy baby wearing, because it provides support for the head of a very small child, who cannot keep its head up yet. The hood can also be a lengthwise extension of the dorsal panel 2, if the wearer wants to carry a bigger child.

When the hood is fixed with the attaching elements 7.1 in the upper position on the strap, they have the role to ensure the hood is fastened in a stretched or slightly wrinkled position, when it has the role to protect the child's head from wind, sun or rain, or even to support the baby when it falls asleep and leaves its head soft in the baby carrier.

At the other end of each shoulder strap 1 , the webbing 1 1 is attached, which has a strap fastening element 9.1 at the other end that joins with a strap fastening element counterpart 9.2, which is complementary to the fastening element 9.1 , and together they form the strap fastening and closing system 9.

By using the strap fastening and closing system 9, the distance between the dorsal support panel (2) and the user's body is fixed, so that the child's body can be placed in an ergonomic position.

In one embodiment, the strap fastening and closing system 9 allows fixing the strap lengths by joining the straps together, two by two. Specifically, the fastening element 9.1 of one strap is connected to a fastening element counterpart 9.2 of another strap, which is symmetrical with the first strap in relation to the longitudinal axis of the dorsal support panel.

Thus, the child carrier system according to the invention can be carried in front, with the shoulder straps in parallel at the back, as shown in Fig.12, with the shoulder straps crossed at the back, as shown in Fig.7, or on the hip as in Fig.14, 13, when one of the shoulder straps is not over the wearer's shoulder, but it goes under one of the wearer's arms, over\crosses the wearer’s back and returns to the front to be closed with the other shoulder strap, at the wearer's waist.

Such a connection of the straps is particularly advantageous, as it allows positioning the child in relation to the wearer without having forces exerted on the dorsal support panel in the strapping area that create internal stresses in the dorsal support panel.

The strap fastening element 9.1 may be, but not limited to, a male buckle member 9.1 , and the fastening element counterpart may be, but not limited to, a female buckle member 9.2.

The buckle member 9.1 , also called the male buckle member, will close with the buckle member 9.2, also called the female buckle member, and this will allow the shoulder straps to close (with each other) after they cross the wearer's back, either crossed (Fig.7) or in parallel (Fig.12) and return to the front, under the child's feet and buttocks, and to be closed at the front, in the area and at the waist belt 3.

In another embodiment of the invention, the two shoulder straps 1 have fastening elements 9.1 at their ends, which may be, but not limited to, male buckle members on both straps, and they can be closed in the fastening element counterparts 9.2, which may be female buckle members, as in the example shown, mounted either on the waist belt 3, as shown in Figure 19, or on the dorsal support panel 2, as shown in Figure 20.

The mounting of these fastening and closing systems 9 can be made in varied combinations, and the complementary fastening element 9.2 can take different positions. In addition, a safety protection 13 can be positioned on the strap 1 1 or attached to the strap fastening elements 9.1 , 9.2. The safety protection 13 has the role of keeping the fastening system 9 securely closed and, if the shoulder strap fastening system accidentally opens, it will hold the shoulder straps under the feet and the bottom of the child, so that it would not open, being locked in the safety protection 13. In one embodiment, the safety protection can be made of a wide elastic band, which may be sewn in the form of a ring and positioned around or on the strap, behind or attached to the fastening element 9.1 and pulled over the fastening element counterpart 9.2, after these two are previously joined.

The fastening method of the shoulder straps is shown in stages in Fig.15, where Fig.15.1 shows the fastening elements 9.1 and the fastening element counterpart 9.2 before closing, Fig.15.2 shows the two parts after closing, and the third step, shown in Fig.15.3, is to pull the safety protection 13 over the closed fastening system 9 to keep it in position even if it accidentally opens.

This safety system 13 can also be attached to the fastening system 10 when the fastening elements 10.1 and 10.2 close around the wearer’s waist, for the same purpose, to protect against a possible accidental opening of the fastening system 10.

The safety protections 13 are sewn in front of any fastening elements 9.1 and 9.2 and they ensure the fastening system 9 remains fixed in this safety protection 13 in a case of accidental opening.

In one embodiment, the child carrier system is equipped, both at the padded ends of the shoulder straps 1 and at the ends of the waist belt 3, with webbing having a sufficient length to fit people with a robust body type. Therefore, at the end of each webbing 1 1 , there are elastic bands 12, so that, when the system is used by a slender person, the webbing excess 1 1 that hangs can be rolled to create a neat appearance when the carrier is worn. The elastic bands 12 will be pulled over the rolled webbing and will hold it tight in this position.

In another embodiment, the shoulder straps 1 can be detached from the dorsal support panel 2 at their connecting points, as exemplified in Figures 16.1 and 16.2.

The detachable part 1 could also have a coupling element 10.1 for the strap, such as, but not limited to, a buckle 10.1 , which will be joined to a coupling element counterpart 10.2 fixed on the dorsal support panel 2, thus achieving the attachment of the shoulder strap

1 to the dorsal support panel 2, as shown in Figures 16.1 and 16.2.

The shoulder straps 1 could also be made of textile fabric only, which could even be partially padded, or they could be wider or narrower, as shown in Figures 16.2 and 16.3. The textile shoulder straps 1 can also be permanently attached to the dorsal support panel

2 at one end, having the other end free, Fig.16.3.

If the textile shoulder straps are used, they will pass over the wearer's shoulders, then cross at the back and then, when returning to the front, they will be either tied under the child's bottom, or crossed again under the child's bottom and then returned to the wearer’s back where they get tied around the waist.

The carrier system according to the invention may further include an additional connecting belt to hold together the two shoulder straps 1 Fig.1 1 , when wearing the carrier system in front or at the back, with the straps in a parallel position and it has the role to secure the straps on the shoulders, preventing them from slipping off, especially when the baby is moving in the baby carrier, or due to any other movements.

In one embodiment, the additional connecting belt has the ends in the form of rings, which could be made of webbing, band, tape, cord, textile fabric or any other material, and can be inserted on the shoulder straps 1 at their free ends and then slid into the desired position so that they finally get on the shoulders or at the back of the wearer. This connecting belt can slide up and down on the shoulder strap 1 , until the wearer finds an optimal comfort position Fig.1 1 .

The rings continue with or have two webbings 1 1 or textile straps attached, which have at their ends two parts that can be attached to each other using a fastening system, such as, but not limited to, interconnecting buckles. The length of the connecting belt can be adjusted according to the size of the wearer's back, by adjusting the length of the webbings 1 1 that passes through these buckles.

In one embodiment, the system can further include a fixed or detachable hood 6, which can be trapezoidal or have any other shape, and has two tunnels 15 on its left and right long sides, with strings 16 or elastic bands that traverse along the tunnels 15.

The purpose of these strings 16 is to reduce the hood by tightening or creasing, millimeter by millimeter, to an exact size, as needed, to obtain a smaller hood 6, adapted for a younger child or to provide support for the baby’s neck.

At its lower corners, this hood 6 is provided with a hood attaching system 7 that connects it to the inside of the dorsal support panel 2, Fig.3. This hood attaching system can be with staples, snaps, buttons, zip, hooks, cords or any other similar system that can perform this function. At the upper inner side of the dorsal support panel 2, there are the attaching element counterparts 7.2, which are the corresponding snap members to which the snap members from the lower corners of the hood are attached, as can be seen in Fig.3, Fig.4. As a result, the attachment will only be temporary, when the wearer deems it necessary. When the wearer does not want to use the hood, it can be completely detached.

The hood 6 can also have other elastic bands or strings 16 on the edges, so that it can be perfectly adjusted to the child's size.

It also has attaching systems 7 on its upper corners, which could be, for example, but not limited to, snap fasteners, so that it can be closed in the corresponding snap members located on the shoulder straps 1 . It can be closed either in the set of snaps placed in the lower position, i.e. the closest to the joint of the straps 1 and the dorsal support panel 2. This closing point is recommended either to cover the head of a younger child or to provide support for the baby's neck by rolling or creasing the hood 6 and closing it at this lower point.

The second set of snaps on the shoulder straps 1 , placed in a higher position than the first set, but not at a very big distance, serves as a closing point for the hood when it is adjusted to a longer size, suitable for the head of an older baby.

The hood therefore has multiple functionalities: it provides protection against rain, wind, cold, dust and other external factors, it ensures support for the head of a sleeping child, while providing protection against light for a peaceful sleep, it provides support for the neck for a small child.

Moreover, it can play the role of an extension for the dorsal panel of the child carrier system, extending it to an even larger size than the maximum length of the dorsal panel 2, providing an additional and raised support for the back of an older child.

In one of the embodiments, there are some creases 8 made on the left side and the right side of the dorsal support panel 2.

These creases 8 can be made of elastic band, drawstring, and they are padded with textile fabric, wadding or other soft materials to provide comfort for both the wearer and the worn child. These elastic creases made on the dorsal support panel 2 tighten the panel sides and thus it fits even better on the child's back, and, in addition, it provides extra safety against the child slipping from the carrier system.

The dorsal support panel 2 could also have some darts 14, placed on the right side and the left side, made for the same purpose, to adjust the fabric over the child's back and support it properly regardless of the child’s weight, while maintaining the ergonomics.

The carrier system according to the invention, as shown in Fig.1 , in plane representation, from the front, also has a progressive adjustment system 5, which allows a simultaneous adjustment of both the length and the width of the dorsal support panel 2.

The progressive connection and adjustment system of the length and width 5 comprises a progressive connection element 5.1 positioned on the waist belt 3 and some complementary progressive connection elements 5.2. positioned on the dorsal support panel 2, which are symmetrical with the vertical axis of the waist belt.

The progressive connection element 5.1 is permanently attached to the belt and it can be a hook and loop fastener\a velcro or some other similar fasteners having a similar functionality, which allows catching a complementary element, in a fixed position and in successive positions at an accurate spacing precision of 0.001 mm.

The progressive connection and adjustment system 5 can also be made out of two magnetic elements, sized to allow catching one magnetic element to the other in various positions, at the same spacing accuracy.

The progressive connection method at an accuracy of 0.001 mm is particularly advantageous because it allows adjusting the dorsal support panel 2 and wearing and adapting the child carrier system, respectively, for any child, regardless of a child’s development stage, adjusting it to any particular shape of any child, at a high accuracy, to ensure the correct ergonomic position throughout a child’s development using a single child carrier system.

The progressive connection element 5.1 may have a square, rectangular or other derived shape, and it is permanently attached in a horizontal position, centered on the surface of the belt.

The progressive connection element 5.1 will preferably be as wide as possible, as much as the width of the waist belt 3, on which it can be mounted/sewn, will allow, or even wider.

The purpose of a width that is as large as possible is to be able to achieve an as large as possible reduction or variation range for the length of the dorsal support panel 2, within the limits of the waist belt 3 width.

As regards the length of the progressive connection element 5.1 , it is desirable to make it as long as possible, preferably at a size as close as possible to the width of the dorsal support panel 2 and of the seating of the child carrier system, up to the length of the waist belt 3, because the size/length of the carrier system seating can be thus maximized to accommodate an older child. The complementary progressive connection elements 5.2, which are symmetrical with the longitudinal axis of the waist belt 3, are sized so that, when connected to the progressive connection element 5.1 , the tensile strength of the connected elements would cover the stress produced by the weight of a large child. For each material used to make this progressive connection, the material supplier will provide a report with the exact strength data of the material, thus enabling an easy calculation of the length and width of the complementary progressive connection element 5.2 in relation to the maximum weight for which the product is intended (the maximum desired load for a wearable system is often about 20 kg).

The position of the complementary progressive connection elements 5.2 on the dorsal support panel 2 in relation to the lower side of the dorsal support panel 2 and their dimensions ensure the possibility of adjusting the length of the dorsal support panel 2 by coupling them with the progressive connection element 5.1 at a smaller or larger distance from the small upper side of the dorsal support panel 2.

In addition, the position of the complementary progressive connection elements 5.2 on the dorsal support panel 2 in relation to the longitudinal axis of the dorsal support panel 2 allows determining the maximum possible width of the seating adjustment range; therefore, the complementary progressive connection elements 5.2 should be ideally positioned as close as possible to the edges of the dorsal support panel 2 to have an as large as possible adjustment range.

Using the adhesion connection on a surface with preset dimensions also allows a high precision progressive adjustment of the carrier system, having a possibility to couple the two elements of the progressive connection and adjustment system 5 anywhere in the two directions that is on the length and the width of the dorsal support panel. This allows using the child carrier system in all the child’s stages of development.

The progressive connection and adjustment system 5 may include, on the dorsal support panel, on the progressive connection element 5.1 and/or on the complementary progressive connection elements 5.2., the elements 5.1 .1 ., 5.1 .2, 5.1 .3 to indicate and guide through preset positions to assemble the progressive connection element 5.1 . and the complementary progressive connection elements 5.2.

At the bottom, the system has a waist belt 3 that is closed around the wearer’s waist.

The waist belt 3 can be fixed to the dorsal support panel 2 (Fig.1 , Fig.2) or it can be partially or completely removable from the dorsal support panel (Fig.17.1 , Fig.17.2) because the progressive connection and adjustment system 5 of the dorsal panel 2 ensures the adhesion and attachment of the dorsal support panel 2 to the waist belt 3 by the adhesion of the complementary progressive connection elements 5.2 to any of the guiding elements 5.1 .1 or 5.1 .2 or 5.1 .3, or in any other position on the belt system 5, and so it will not be mandatory to sew or permanently fix the dorsal support panel 2 to the belt 3.

In one of the invention embodiments, the dorsal support panel 2 may have two complementary progressive connection elements 5.2, on the left and on the right in relation to the longitudinal axis, which elements can be made of materials having the ability to adhere to one another, such as a hook and loop fastener\a velcro, as shown in Fig.10, but any other material or any other similar system that can perform this function can be used, without limitation hereto. They are permanently attached or not to the dorsal support panel 2 at a height equal to the width of the waist belt 3 from its lower side and they are positioned on the sides of the dorsal support panel 2, to the left and to the right, up to the edges.

Alternatively, these strips can also be fixed with a removable attachment that has a sufficient tensile strength to cover the stress created by supporting a large child.

An accurate distance is kept between these two strips / complementary progressive connection elements 5.2, so that, when these two strips 5.2 are close to each other at their maximum approaching distance when attached to the progressive connection element 5.1 , as in Fig.8.1 , Fig. 9.1 , a smaller seating is formed for a newborn baby. Flowever, this seating should not be very narrow, as this would jeopardize the ergonomics of child positioning in the baby carrier and the baby’s legs could hang. That is why the length of the two hook fastener strips is calculated accurately so that a little child's feet would stay in the optimal position.

In one of the embodiments of the carrier system according to the invention, the progressive connection element 5.1 , has 3 positions 5.1 .1 , 5.1 .2, 5.1 .3, marked strictly for guiding purposes only to help a new parent / novice user. Each position 5.1 .1 , 5.1 .2, 5.1 .3 is marked with two frames each, having a size equal to the frames / size of the complementary progressive connection elements 5.2. that connect to them. Thus, the user will be able to easily understand that, for a small child, the two complementary progressive connection elements 5.2 are to be fixed on the two frames 5.1 .1 , for a slightly older child they are to be fixed on the two frames 5.1 .2 and, for an older child, they are to be fixed on the 5.1 .3 frames. This will be pointed out by labelling, frame coloring, in the instruction manual etc., strictly for guiding purposes, since the complementary progressive connection elements can be actually positioned anywhere on the progressive connection element 5.1 , depending on the size and particularities of each child.

These frame markings for the three guiding adjustment positions could have different colors in an embodiment of the system. Each embroidered color is suitable for a certain stage of child development and they are purely for guiding purposes.

Thus, the carrier system according to the invention includes a system for a simple and intuitive simultaneous adjustment of the seating width (by an out-in movement) and of the height of the panel (by an up-down movement), as described herein below, which may be placed in several types of carrier systems and more.

The child carrier system for which this type of adjustment 5 is suitable could be a soft structured carrier / baby carrier system, such as, but not limited to, mei-tai, onbu, onbuhimo, half buckle, sling.

In order to be able to adjust the system, the two complementary progressive connection elements 5.2 on the dorsal support panel 2 overlap with the progressive connection element 5.1 in one of, but not limited to, the positions indicated by the guiding elements 5.1 .1 , 5.1 .2, 5.1 .3, which positions are bordered by embroidery, so that the system can be adjusted according to the size of the carried child and the material would support its thighs from one knee to another, and the height of the dorsal panel 2 would support the child’s back up to the neck. The overlapping of the two complementary progressive connection elements / hook fastener strips 5.2 on the dorsal support panel 2 to the corresponding progressive connection element 5.1 on the belt 3, which can be a loop fastener strip, makes it relatively difficult to open the closed adjustment system / loop and hook fastener and keeps the complementary progressive connection elements/ strips 5.2 very well fixed in the chosen position.

The system is adjusted in the minimum position, as in Fig.8.1 front view and Fig.9.1 back view, by overlapping the two complementary progressive connection elements / hook fastener strips 5.2 on the dorsal support panel 2 to the progressive connection element on the belt in position 5.1 .1 . Thus, the dorsal support panel 2 of the system will be reduced to a minimum, and the total proximity of the two strips 5.2 when fixed in position 5.1 .1 will generate a small excess of material, which will form a small bag, in which the child is correctly positioned in terms of ergonomics, with its bottom lower than its knees. The height of the dorsal support panel 2 will be simultaneously reduced by pulling the complementary progressive connection elements / hook fastener strips 5.2 downwards completely, to the lower limit of the progressive connection element \ the loop fastener strip 5.1 , thus reducing the total length of the dorsal panel 2 exactly as needed for a correct support of a small child's back.

The system is adjusted in the intermediate position, as in Fig.8.2 front view and Fig.9.2 back view, by overlapping the two complementary progressive connection elements / hook fastener strips 5.2 on the dorsal support panel 2 to the progressive connection element on the belt in position 5.1 .2. Thus, the dorsal support panel 2 of the system will have a slightly bigger seating and height than in the minimum position described above. For enlargement to the maximum position, as in Fig.8.3 front view and Fig.9.3 back view, the two complementary progressive connection elements / hook fastener strips 5.2 on the dorsal support panel 2 are connected to the progressive connection element on the belt in position 5.1 .3. Thus, the dorsal support panel 2 of the system will be widened and extended to the maximum for a large child.

The system can be adjusted both widthwise and lengthwise, on the entire surface of the progressive connection element 5, and the frames of the guiding elements 5.1 .1 , 5.1 .2, 5.1 .3 have only the purpose of helping the user to connect the complementary progressive connection elements 5.2 in the recommended positions, depending on the size of the child, but the complementary progressive connection elements 5.2 can also be connected anywhere on the wide band strip / progressive connection element 5.1 , as the user wishes. An example in this respect may be the case of an older child for whom the seating needs to be adjusted to the maximum, as wide as possible, but perhaps the child wants to sit with his/her hands out for the moment, to be active, and then the panel should be shortened to the minimum or as much as the user wishes/needs.

This system of simultaneous adjustment of the length and width of the dorsal panel covers the requirements for a carrier system to become ergonomic and healthy for carrying children of different ages; the carrier system is entirely adapted for children of different ages and sizes with a single adjustment system 5, without a need for various other adaptations and additional elements positioned elsewhere on the child carrier.

On the waist belt 3, on the side opposite to the one on which the progressive connection element 5.1 is placed, there is a loop 4 fixed, or any other similar system, for the webbing 1 1 and the fastening elements mounted at their ends 9.1 , 9.2 to pass through and to hold them in place at the bottom or at the middle of the waist belt 3 at most, in order to prevent the webbing 1 1 and the strap fastening and closing elements 9.1 , 9.2 from ascending under the child's bottom and from annoying or irritating him/her, and thus the comfort of the child is increased.

In one of the invention embodiments, the said, but not limited to, loop 4 may be made of elastic, textile fabric, padded or not, a hook and loop fastener / velcro, metal ring or any other similar or different system that can perform this function. One, two or more such elements may also be positioned on the waist belt 3 for this purpose.

In one embodiment, the waist belt 3 may consist of a part / piece of foam, wadding or any similar filling, wrapped in textile fabric, a wide webbing 1 1 that can totally or partially traverse the filling and continue to the left and right far ends, having a horizontal position and being permanently attached to it.

At the free ends of the webbing 1 1 , there are fastening systems attached, so that the waist belt 3 can encompass the wearer’s waist and it’s ends can be joined together Fig.5 (front view), Fig.7 (back view), closed with buckles or other similar waist belt coupling and closing systems, such as 10.1 , 10.2. In addition, a safety protection 13 can be positioned on the webbing 1 1 of the waist belt or on the buckles. The safety protection 13 makes it possible that, if the fastening system around the waist accidentally opens, it will not detach itself from the wearer's waist, being locked by the safety protection 13.

In another embodiment of the child carrier system according to the invention, the waist belt 3 can be completely removable from the dorsal support panel 2 Fig.17.1 , it can be made of soft fabric, with or without padding and with or without a fastening element, or it can be even a simple wide strap, or other similar materials. To close it around the wearer's waist, this belt 3 can be equipped with fastening systems such as, but not limited to, buckle / buckles, string, snaps, hook and loop fastener, knot or any other similar or different system that is suitable to perform this function.

In other embodiments of the child carrier system according to the invention, the waist belt 3 may be a simple textile strip, even completely removable from the dorsal support panel 2, which could also be padded, with or without a fastening element at the end. Thus, the belt may have two long wider or narrower tails, which may, for example, be knotted. In another embodiment, it may have D-rings or two round rings mounted at one end (Fig.17.2) or other similar mechanisms. If using this last solution, the connection is as follows: the free tail is inserted through both rings, then it returns in the direction it came from and passes over the first ring in the direction it comes from, entering only under the second ring and so the material is tensioned and adjusted to the size of the wearer's waist.

In conclusion, with the procedure described above, the seating and the height of the dorsal support panel 2 of the child carrier system, that is the length and width of the dorsal support panel, are adjusted simultaneously, extremely simply and intuitively, millimeter by millimeter, not in steps, and the carrier system can be thus adapted for any child. Thus, the carrier system is adapted, with a few adjustments, to a wide range of child ages and sizes.

For a baby carrier to be ergonomic, it must be adapted to the size of the carried child, so that the material would support its thighs from one knee to the other and would support the child's back on its entire length. The material, in any of the forms presented above or in variations thereof, is thus designed to support the child's bottom and back when the child is carried with the carrier system.

A correct ergonomic position for a child worn in such a carrier system must be so that the child's back is supported at least at shoulder level for older children, and up to half of the neck length for smaller children, who don’t have well-developed neck muscles yet, as explained in Fig.21 . Thus, the supporting fabric must be soft and it must allow size adjustments so that the child's back and neck would be properly supported, achieving a shape similar to a C in the dorsal part Fig.22. This is the main aspect taken into account by this solution, so that, at any time in a child's development, the child can be carried in a healthy position that allows a proper development.

In addition, the correct ergonomic position is also given by the abduction position of the thighs, where the femur is covered more than 2/3 by the cotyloid cavity of the coxal bone, and where the child’s bottom must be below or at the level of its knees, as shown in Fig.23 made by the International Institute of Flip Dysplasia. To do this, a child carrier system must allow for the base of the dorsal support / seating material to be adjusted as needed to support a child's bottom in the correct position and the material would support its feet to the knees. This is not possible with other baby carrier systems that have a fixed base and cannot be adapted to the size of the worn child.

In conclusion, this solution offers a simple and ingenious child wearing system, having a dorsal support panel and a seating that can be simultaneously and intuitively adjusted both in length and width. The adjustment is made millimeter by millimeter, exactly as needed, being an easy and intuitive way for the wearer, so that the two complementary progressive connection elements/ hook fastener strips 5.2 on the dorsal support panel 2 overlap easily with the progressive connection element 5.1 on the system’s waist belt 3, similar to the closing of a book, Fig.18, maintaining each time the correct ergonomic position of the carried child, regardless of its development stage, up to the maximum limit provided by this carrier system.

It is obvious for a specialist in this field that multiple such embodiments of the invention can be made by combining the variants presented above depending on the requirements of the users.

All these additional elements that may or may not be found in the carrier system made, as well as other additional ones, come to support this solution and to ensure and maintain the ergonomics throughout the wearing period, and over time, throughout the development and growth of the worn child, as described in the points above, by the adjustability of the system.

Although several embodiments of the invention have been described in detail, it will be understood that the invention is not limited thereto, but it obviously includes all changes and modifications within the scope of the invention as defined by the appended claims.

List of reference numbers:

1 . shoulder strap

2. dorsal support panel

3. waist belt

4. loop

5. progressive length and width adjustment system for the dorsal support panel, with 3 guide adjustment positions:

5.1 . progressive connection element

5.1 .1 guiding element for a minimum position

5.1 .2. guiding element for an intermediate position

5.1 .3. guiding element for a maximum position

5.2 complementary progressive connection elements

6. hood

7. hood attaching system