WO2007008107A1

WO2007008107A1 - Set of orthopedic functional pieces of furniture for raised (and alternatives), armchair belonging to ec set and process of conversion of the aforesaid set

Info

Publication number: WO2007008107A1
Application number: PCT/RU2006/000307
Authority: WO
Inventors: Anatoly Vladimirovich Piliya
Original assignee: Anatoly Vladimirovich Piliya
Priority date: 2005-07-11
Filing date: 2006-06-15
Publication date: 2007-01-18
Also published as: EA010197B1; RU2292831C1; EA200700921A1

Abstract

The invention relates to pieces of furniture and in particular to pieces of furniture used in classroom, notably to a set of functional furniture for pupils, to an armchair being part of the set and to a conversion process. The set of functional furniture for pupils includes a table with supports on which a case is mounted having a foldable desk, and an armchair assembled with assembly parts such as the back, the seat and the side elements provided with feet and armrests having supports. The distance between the forward and back supports of the armrests, and between the forward and back feet of the side elements is higher than the width of the back or the seat. The casing of the table is made to accommodate side elements and armrests stacked two by two, the long ends of the feet and the supports being oriented in the same direction to make it possible to mount the seat with the back, which are mounted respectively between the long ends of the feet of a pair of side elements and between the supports of the pair of armrests. The seat of the set includes a back with parts of support intended for the lumbar area, the intermediate area and the area of the shoulders. The higher border of the support part of the shoulders area does not cross the vertical plane passing through the points most distant from the lower ends of the feet back. The seat of the armchair comprises a recess being used to accommodate the basin and of the hollows for the knees, situated at the front edge. This arrangement makes it possible to simplify the structure and to reduce the price of the furniture set for pupils like as well as to improve the ergonomic characteristics and safety of use. The furniture set can be converted with simple means to be put in an inactive position for storage, transport or warehousing.

Description

A set of functional orthopedic student furniture (options), a set chair and a method for transforming a set

Technical field

The invention relates to furniture used as educational furniture, and in particular, to a set of functional orthopedic student furniture, a chair for a furniture set, and a method for transforming a set.

One of the important tasks in creating furniture samples is not only improving operational qualities - comfort, design, etc., but also rationally solving the problems associated with the organization of storage of manufactured products and their marketing, including furniture delivery to the consumer.

State of the art

A well-known solution to this problem is the storage and delivery of furniture products in a fully or partially disassembled state, since storage and delivery of furniture in assembled form, in particular cabinet furniture, is irrational for many reasons.

Complete disassembly of the furniture product leads to the presence of a large number of parts to be completed, which increases the complexity of the organization of their packaging, storage and marketing, including the subsequent assembly of the product after delivery at the customer’s place. In some cases, the assembly of the product can be carried out only by a professional assembler and is beyond the power of the average user.

This accordingly leads to additional economic and labor costs and ultimately increase the cost of the product for the consumer.

The storage and marketing problem for furniture products - student sets consisting of desks, tables and chairs or armchairs, which in most cases have structures that cannot be disassembled during storage or transportation and are delivered to the consumer in an assembled form is especially relevant.

Storage of sufficiently voluminous, non-separable and, as a rule, frame structures such as student chairs or armchairs, as well as desks included in student sets, requires a lot of space, and their transportation is economically disadvantageous due to the significant volume and low weight of this type of product.

SUBSTITUTE SHEET (RULE 26) The costs due to the unproductive use of storage space and transport for the transportation of sets also ultimately lead to an additional increase in the cost of such sets for the consumer.

In addition, the specificity of student furniture includes the fact that its operation can be interrupted for a sufficiently long time, for example, during the summer holidays. At the same time, areas in classrooms of school institutions or in residential premises of individual users are irrationally occupied with sets. At the same time, for student furniture, in addition to the above problems, problems related to special requirements for children’s furniture and for the proper development of the child, eliminating the possibility of diseases of his musculoskeletal system, reducing fatigue, and increased safety are also relevant. , including reliability and durability, environmental safety.

From the patent of the Russian Federation Na 2095014, a set of functional student furniture is known that contains a desk-desk, including support racks, on which a box-shaped body with a hinged tabletop-cover is mounted with a possibility of height adjustment, and a chair having a height-adjustable seat with a back and armrests with racks mounted on the legs of the chair with the possibility of independent reinstallation in height.

The device of the desks and chairs of the known kit ensures their adaptation to specific physiological parameters of the user, the chair has a seat and back with rigid supporting parts for fixing the pelvis and back with good ergonomic characteristics.

However, the known design does not provide for the possibility of transforming the kit into an inoperative state for storage, in which it takes up significantly less space than in the working position.

At the same time, disassembling into components may not be laid in principle, and if feasible, it does not solve the problem of compact storage of the kit in the consumer’s residential premises, classrooms, convenient storage and transportation.

SUBSTITUTE SHEET (RULE 26) In addition, the known design does not disclose safety measures to prevent injuries associated with insufficient stability of the chair, excluding, for example, the possibility of the chair tipping over when trying to swing it by a sitting student.

U.S. Patent No. 6185589 discloses a set of kitchen furniture comprising a tabletop that can be retracted inside a supporting two-piece structure that has a writing case, and a side bracket connecting one side of the supporting structure to the seat, and articulated joints that allow fold the seat with the side bracket and place them inside the supporting structure.

The disadvantages of the known kit include the complexity of the design, the lack of independent adjustments to the heights of the countertops and seats, low ergonomic characteristics of a seat that does not have a back. In addition, the presence of articulated joints of the support structure and the seat limits the freedom of movement of the user, reduces the rigidity of the seat support and requires safety in terms of reliable operation of the articulated joints.

From the published application WO 99/34706, a set of student furniture is known, including a desk with a table and a chair, which can be combined into one. The design of the chair has an adjustable seat, backrest, largely meeting ergonomic requirements.

However, the known construction of the kit does not provide for the possibility of transforming the kit into a non-working state for storage, warehousing or transportation, in which it takes up significantly less space in case of temporary non-use, for example, during school holidays.

Disclosure of invention

The task to which the claimed invention is directed is the creation of a simple in design and relatively inexpensive set of student furniture, which to a large extent meets ergonomic requirements, as well as safety requirements and can be transformed by simple means into an inoperative position for storage, transportation or storage .

SUBSTITUTE SHEET (RULE 26) The technical result in solving the problem lies in the optimal separation of the components of the prefabricated chair with minimizing the number of components and their connections, as well as in such a design of the components, in which it is possible to place the components of the chair in the desk using simple means without ergonomic loss quality.

It also simplifies the design, reduces labor costs and costs, improves operational qualities due to high ergonomic characteristics, provides convenient storage when not using the kit in the user's place, in classrooms, in warehouses and during transportation.

In addition, the design of the constituent parts of the chair, their detachable connections provides good stability of the chair, sufficient rigidity of the joints, ease of installation and dismantling of the components available to the consumer.

The technical result is achieved due to the fact that the set of functional student furniture contains a desk-desk with supporting racks, on which a box-shaped case with a folding tabletop-cover is mounted, and a chair made of prefabricated components - backs, seats, side panels, each of which formed by front and rear legs connected by a cross member, and armrests having front and rear legs mounted respectively on the front and rear legs, the cross member of each sidewall connecting but the lids in their lower part, separating from them the short - lower and long - upper ends of the legs.

The distance between the front and rear pillars of the armrests, as well as the distance between the front and rear legs of the sidewalls, is made larger than the overall width of the seat or back. In this case, the housing is made with the possibility of placing in it stacked in stacks of sidewalls and armrests with uprights, in which the long ends of the legs and uprights are directed to one side, as well as seats with a back, which are located respectively between the long ends of the legs of a pair of sidewalls and between the uprights of a pair armrests.

The seat and backrest have a detachable connection to each other, and the armrest with racks and the side wall of the seat on each side of the chair have a detachable connection between themselves and with the side of the seat.

SUBSTITUTE SHEET (RULE 26) Separation of the chair into a small number of essentially flat elements having a small overall height (thickness) ensures their compact stacking in the school desk.

It also makes it convenient to store, transport, pack, assemble and disassemble, and a certain distance between the armrest racks and sidewall legs makes it possible to lay the components of the chair in the desk when storing the kit in piles in a certain way, which allows you to compactly place the chair parts with the highest occupied density them in the table - space desks.

Such styling does not lead to an increase or change in size, responsible for the ergonomic characteristics of the desk, desk or chair.

On the other hand, increasing the distance between the sidewall legs and the armrest racks increases the stability and, accordingly, the safety of the chair, excluding the possibility of it toppling over, for example, when trying to “roll it out” while the student is in the chair, and also provides other advantages, which will be described later. Moreover, hereinafter, the overall length, width and height means respectively the largest, medium and smallest size of an individual structural element (part), which is conventionally located along the length and width in the horizontal plane regardless of its position in assembly with other elements.

Conventionally, we can assume that the overall dimensions are the dimensions of the three coordinates of the smallest parallelepiped, placed along the length and width in the horizontal plane and having the smallest size in height, into which the structural element can be “entered”. A part or element can have both extended flat surfaces, taken as the base, and curved surfaces. In this case, its overall dimensions are determined, as indicated above, by the dimensions of the conditional parallelepiped. For flat parts, the overall height is essentially their thickness.

In addition, in the case of the desk, formed by the front, rear, side walls and the bottom, the distance between the front and rear walls of the box-shaped case can exceed the overall size of the armrests with racks, measured in the direction along the length of the armrests. Distance between

SUBSTITUTE SHEET (RULE 26) the side walls of the box-shaped case may exceed the overall length of the backrest in total with the overall size of the armrests, measured in the direction along the length of the uprights.

This minimizes the size of the desk-desk along the length and width, which in the general case can be quite large for the convenience of the user, but not to the extent that the desk becomes cumbersome.

In this case, the distance between the side walls of the body exceeds the overall length of the seat in total with the distance from the lower ends of the legs to the side rail cross member and the overall cross width.

This ensures the implementation of the aforementioned placement of the components in the desk-table case, taking into account the dimensions of these components.

The distance between the side walls of the body depends on the greatest length of two armrests stacked in piles with a back located between the pillars and the longest sidewalls with a seat located between the long ends. The placement of the back between the armrest racks and the seat between the long ends of the legs is due to the fact that the backs, as a rule, have a longer overall length than the seats, and the distance from the lower - short ends of the legs in total with the width of the cross member is certainly larger than the overall width or height of the armrests.

Therefore, placement when laying in the seat casing between the long ends of the legs and the back - between the uprights gives a “reduction” or leveling of the length of such sets, which may still be different. Based on this, the distance between the side walls of the school desk can be selected by the greatest length of any of the sets.

This allows you to minimize the size of the case, without violating the ergonomic requirements for the size of the body of the desk and table top. In addition, the height of the walls of the school desk housing may exceed the overall height of the backrest in total with the overall height of the seat. The largest overall height dimensions are usually the back and seat, the curvature of which further increases its overall height. The sum of the overall heights of the seat and back, stacked on top of each other, is usually greater than the total overall height of a pair of armrests with racks and a pair of sidewalls in a pile. This determines the choice of the height of the walls of the school desk casing according to the sum of the overall heights of the back and seat, which also provides in conjunction with

SUBSTITUTE SHEET (RULE 26) the possibility of placing the back and seat between the racks and legs of the sidewalls when laying in the school desk, to minimize the size of the body according to the height of the walls without violating the ergonomic requirements for the size of the school desk according to the height of the tabletop.

The technical result indicated above for the first variant, which provides a solution to the problem of creating inexpensively with high ergonomic indicators of a set of student furniture, is fully consistent with another embodiment of the set.

Embodiments of the invention

The technical result for this option is achieved by the fact that a set of functional student furniture, comprising a desk-desk with supporting racks, on which a box-shaped case with a folding tabletop is mounted, has a chair with a set of interchangeable seats and / or backs.

The kit includes at least two different sizes of seats and / or backs, the shape and dimensions of which are made taking into account the characteristics of the musculoskeletal system in children of at least two older and younger age groups.

Moreover, the chair is made of prefabricated parts - the back and seats of one of the standard sizes of the set, as well as the sidewalls, each of which is formed by front and rear legs connected by a cross member, backs, and armrests with front and rear racks mounted respectively on the front and rear hind legs, and the cross member of each sidewall connects the legs in their lower part, separating their short - lower and long - upper ends. The distance between the front and rear pillars of the armrests, as well as the distance between the front and rear legs of the sidewalls, can be made larger than the width of the seat or backrest of the largest size.

The body is made with the possibility of placing in it stacked in stacks of sidewalls and armrests with uprights, in which the long ends of the legs and racks are directed in one direction, as well as seats with a backrest, which are located respectively between the long ends of the legs of a pair of sidewalls and between the uprights of a pair of armrests.

SUBSTITUTE SHEET (RULE 26) In this case, the seat and backrest have a detachable connection to each other, and the armrest with uprights and the side of the seat on each side of the chair have a detachable connection between themselves and with the side of the seat.

The implementation of seats and / or backs with various sizes and shapes of the supporting surfaces, in addition to all the advantages of the first set, provides higher indicators of comfort and the ability to adapt to the physiological characteristics of a particular user.

In addition, the case of the desk-desk set according to the second embodiment formed by the front, rear, side walls, as well as the bottom, may have a distance between the front and rear walls of the box-shaped body, which exceeds the overall dimension of the armrests with racks, measured in the direction along the length of the armrests.

The distance between the side walls of the box-shaped case can exceed the overall length of the backrest of the largest size in the total dimensions of the armrests, measured in the direction along the length of the racks.

The distance between the side walls of the box body can exceed the overall length of the seat of the largest size in total with the distance from the lower ends of the legs to the side wall cross member and the overall width of the cross member, and the height of the body walls can exceed the overall height of the back of the largest size in total with the overall height of the seat of the largest size.

To increase the stiffness and strength of the chair as a whole, interchangeable ties are provided along the width of the set seats, connecting the middle of the legs cross members. The seats of the set can have the same length from the front to the back edges and different widths, which provides more accurate profiling of the supporting surfaces of the back and seat for children of different age groups. Moreover, the interchangeable backs of the set may have supporting sections for the lumbar, middle and shoulder regions of the back, and interchangeable seats can be made with the rear part protruding backward behind the back.

Another objective of the invention is the creation of a chair for the sets described above, ensuring high ergonomic indicators by rational selection of components and minimizing their number, as well as due to the structural design of the components of the chair.

SUBSTITUTE SHEET (RULE 26) The technical result is achieved due to the fact that the chair of the above set has a seat with a recess for supporting the pelvis, the surface of which is associated with the surface of the popliteal grooves in the front edge of the seat to accommodate popliteal folds.

The back of the chair may have supporting sections for the lumbar, middle and shoulder regions of the back, and the upper boundary of the supporting portion of the shoulder region of the back does not intersect the vertical plane drawn through the points farthest back of the lower ends of the hind legs.

The presence of several, each for a specific region of the back, supporting sections of the back ensures the physiologically correct posture of the student, and the presence of a depression and popliteal grooves ensures the correct position of the pelvis, and also eliminates pressure on the muscles and possible compression of nerve bundles in the region of the popliteal folds, as is the case when making the front edge of the seat level.

The side struts of the backrest can have ends protruding downward from the lower cross member, and the connection of the seat and backrest can be accomplished by placing these ends in the cross-sectional holes in the rear of the seat at its sides. At the same time, each end of the rack is fixed in the seat by means of a clamping screw passed into the hole made on the side of the seat and into the hole made at the end of the backrest, ending with a threaded socket and wrapped in the threaded hole of the threaded socket. In addition, the connection of the armrest and the sidewall with the seat on each side of the seat can be made using two tightening screws, one of which is inserted into the hole made in the front armrest post, the hole made in the front leg of the sidewall and into the hole with a threaded socket made in the side of the seat at its front edge, while the screw is screwed into the threaded hole of this threaded socket, and the other tightening screw is passed into the hole made in the rear armrest post into the hole ying the rear leg of the sidewall and into the hole with a threaded socket formed in the lateral side of the seat at its rear edge, wherein the screws are tightened into the threaded hole of the threaded socket. These signs, on the one hand, provide sufficient rigidity of the joints and the structural strength of the chair as a whole, and on the other hand, provide simplification of manufacture and

SUBSTITUTE SHEET (RULE 26) assembly of components for the manufacturer, and, in addition, simplifies and makes it convenient to assemble or disassemble the entire chair as a whole into components and for the consumer. Moreover, the joints and fasteners used for assembly do not require special tools or skills. To increase the rigidity of the chair structure as a whole, the cross members of the sidewall legs are interconnected by a coupler, the ends of which are connected to the middle part of these crossbars by a detachable connection.

A number of holes can be made along the length of the legs of the sidewalls and racks of the armrests with the same pitch, which implements one of the possible designs for independently reinstalling the seat with the backrest and the armrests in height on the legs of the sidewalls of the chair when “fitting” the chair to the physiological characteristics of a particular consumer.

To increase the reliability of armrest mounting, the armrest racks can be connected to the sidewall legs with additional clamping screws, which are inserted into the openings of the armrest legs and racks. Since the support base of the chair for increased stability is increased due to the fact that the rear legs are carried further back, the seat, in its continuation behind the back, may have an extended rear part. It can be additionally used to place various items of notebooks, books, etc., or for the same purpose, a cutout can be made on the back of the seat on the back of the seat. In the cutout you can place any objects - for example, a backpack or briefcase, placed on the floor, and which can be conveniently placed or removed from the space of the cutout.

The desks and chairs described above implement a method of transforming a set of functional student furniture, in which the chair is disassembled into its component parts and placed in the desk-desk case, stacked side-by-side and armrests with racks in pairs, while the long ends of the legs and racks are sent to one side, the seats are located between the long ends of the legs of a pair of sidewalls, and the backrest is located between the uprights of a pair of armrests. The kit transformed in this way takes up little space, which is convenient when storing the kit in educational institutions or in residential premises of individual users during the period of its temporary

SUBSTITUTE SHEET (RULE 26) use, for example, during school holidays, especially summer holidays. The ability to transform the kit can be used when storing or transporting the kit.

The support racks of the desk-desk housing can also be dismantled and stored separately.

A separate building, located vertically in any suitable place for premises in an educational institution or residential premises, will occupy an even smaller area

When storing separate cases of desks, desks can be stacked.

Brief Description of the Drawings

The invention is illustrated by drawings, where Fig. L shows a desk of a set of student furniture in a perspective view;

In FIG. 2 - chair set student furniture in a perspective view;

In FIG. 3 - an unassembled chair in a perspective view;

In FIG. 4 shows a side view of a chair;

Figure 5 - desk set of student furniture, side view;

6 is a section A-A in figure 4,

7 is a section bB in FIG. four;

On Fig - section B-B in Fig. 5, shows the placement of the components of the chair in the school desk;

In Fig.9 - section GG in Fig. 5, shows the placement of the components of the chair in the school desk;

Figure 10 - chair seat, top view;

In Fig.l 1 - seat of the chair, front view.

Embodiments of the invention

A set of functional student furniture, contains a desk-desk 1 with support racks 2, on which a box-shaped case 4 having a hinged countertop-cover 3 is mounted, designed during operation of the kit for storing student supplies. It is formed by the front 5, rear 6, side walls 7 and 8, as well as the bottom 9. The housing 4 is mounted on the supporting posts 2 with the possibility of reinstallation in height. In this case, the countertop-lid can be mounted on hinges and inclined to the front wall of the desk.

SUBSTITUTE SHEET (RULE 26) The school desk can be made collapsible into at least a box-shaped case 4 and support racks 2, which is also convenient for transportation, storage and storage of the kit.

Chair 10 (Fig. 2) has a seat 11, front legs and rear legs 12, which are connected by cross members 13. Legs 12 are separated by cross member 13 into long 14 and short 15 ends (Fig. 3). The chair is equipped with armrests 16 with uprights 17 mounted on legs 12. A backrest 18 is mounted on the seat 11, having side uprights 19 connected by an upper crossbeam 20 and a lower crossbeam 21, between which back support elements 22 are mounted.

Seat 11 (Fig. 2) with backrest 12 and armrests 16 with uprights 17 are installed with the possibility of independent reinstallation in height.

This ensures a correct fit by adapting the seat height to the physiological parameters of the user and the convenient location of the desk at the height.

Thus, the “fitting” of the chair and desk is provided for specific growth, equipment and physiological characteristics of a particular user.

The front and rear legs 12 are rigidly connected to the cross members 13 by one-piece connections or are made in one piece and form the sidewalls 23 of the seat.

Chair 10 is made prefabricated from the main components: seats 11 and backs 18, having a detachable connection between each other, as well as armrests 16 with racks 17 and sidewalls 23, which are detachably connected to each other and to the seat 11,

The supporting elements 22 of the back are made curved so that they form the supporting areas of the back.

Moreover, the side struts 19, the upper crossbar 20, the lower crossbeam 21 and the supporting elements 22 of the backrest are rigidly interconnected by one-piece connections or made in one piece. The armrests 16 with the uprights 17 are rigidly connected by one-piece connections or are made in one piece.

This provides a simplification of the manufacture of school desk components for the manufacturer and the convenience of disassembling and assembling the chair for the consumer by minimizing the number of components and simple joints.

SUBSTITUTE SHEET (RULE 26) The distance between the side walls 7 and 8 of the casing 4 desks exceeds the overall length of the backrest 18 in total with the overall dimension of the armrests 16, measured in the direction of the uprights 17.

The distance between the side walls of the box-shaped case may exceed the overall length of the seat 11 in total with the distance from the lower ends of the legs to the side rail cross member and the overall cross width. Depending on the specific dimensions of the backrest, sidewalls and armrests with uprights, one or another option is selected to assign the distance between the side walls 7 and 8 of the housing depending on the greatest total length of the components.

The distance between the front 5 and rear 6 walls of the housing 4 exceeds the overall dimension of the sidewall 23, measured in the direction along the length of the cross member 13.

The height of the walls 5, 6, 7, and 8 of the desk table body exceeds the sum of the overall dimensions in height of at least two main components of the chair N of the seat 11 and the back 18. The desk 1 is made collapsible into at least a box-shaped case 4 and supporting racks 2. The lateral racks 19 of the back have ends 24 protruding downward from the lower cross member (Fig. 3).

The connection of the seat 11 and the back 18 is made by placing these ends in the cross-sectional openings made in the rear of the seat 11 at its sides.

Each end 24 of the rack is fixed in the seat by means of a tightening screw 25 inserted into the hole made on the side of the seat and into the hole made at the end 24 of the rack.

The connection of the armrest 16 with the uprights 17 and the sidewall 23 with the seat 11 on each side of the seat is made by two coupling screws 26 and 27. One of them is inserted into the hole made in the front armrest post 16, the hole made in the front leg 12 of the sidewall and an opening with a threaded socket made in the side of the seat at its front edge, while the screw 26 is wrapped in the threaded hole of this threaded socket. Another tightening screw 27 is passed into the hole made in the rear armrest post 16, into the hole made in the rear leg 13 of the sidewall 23, and into the hole with a threaded socket made in the side of the seat at its rear edge, while the screw 27 is wrapped in a threaded hole of this threaded socket.

SUBSTITUTE SHEET (RULE 26) The cross members 13 of the legs of the sidewalls 23 are interconnected by a coupler 28, the ends of which are connected to the middle part of these cross members 13 by a releasable connection.

Along the length of the legs 12 of the sidewalls 23 and the struts 17 of the armrests, a series of holes are made with a pitch of 20 mm to 80 mm. Racks 17 of the armrests 16 are connected to the legs of the sidewalls with additional clamping screws 29, passed into the free holes of the legs and racks.

The threaded socket can be made in the form of a embedded part 30 of a cylindrical shape with a threaded hole perpendicular to its axis, while the embedded part is placed in the corresponding diameter of the embedded part of the hole made on the bottom side of the seat perpendicular to the corresponding hole in the end of the seat. The threaded socket is made in the form of a embedded part 30 of a cylindrical shape with a threaded hole perpendicular to its axis. The embedded part 30 is placed in the corresponding diameter of the embedded part of the hole made on the bottom side of the seat perpendicular to the hole in the end face of the seat.

The set of functional student furniture according to the second embodiment, like the first set, contains a desk-desk 1 with supporting racks 2, on which a box-shaped case 4 is mounted having a folding tabletop-cover 3, and a chair 18, which, unlike the first set, contains a set of interchangeable seats / or backs, including at least two different sizes of seats and / or backs, the shape and dimensions of which are made taking into account the characteristics of the musculoskeletal system in children of at least two N older and younger age groups. The chair 10 is also made of prefabricated components N of the back 18 and the seat 11 of one of the standard sizes of the set, as well as the sidewalls 23, each of which is formed by the front and rear legs 12 connected by a cross member 13, and the armrests 16 having front and rear racks 17 mounted respectively on the front and rear legs! 2. The cross member 13 of each sidewall 23 connects the legs 12 in their lower part, separating their short - lower and long - upper ends.

Unlike the first option, the distance between the front and rear struts 17 of the armrests 16, as well as the distance between the front and rear legs 12 of the sidewalls 23 in the kit according to the second embodiment, is made larger than the width of the seat or backrest of the largest size.

SUBSTITUTE SHEET (RULE 26) The housing 4 is made with the possibility of placing in it stacked in stacks of sidewalls 23 and armrests 16 with racks 17, in which the long ends of the legs and racks are directed in one direction, as well as seats 11 with a back, which are located respectively between the long ends of the legs of a pair of sidewalls and between the racks of a pair of armrests, i.e., in the same way as in the first embodiment. The housing 4, formed by the front, rear, side walls and the bottom, has a distance between the front and rear walls of the housing exceeding the overall dimension of the armrests 16 with the uprights 17, measured in the direction along the length of the armrests 16.

The difference also lies in the fact that the distance between the front and rear walls of the box-shaped body 4 of the kit according to the second embodiment exceeds the overall length of the backrest of the largest size in total dimensions of the armrest 16 with the uprights 17, measured in the direction along the length of the armrest 16,

The distance between the side walls 7 and 8 of the box-shaped body 4 exceeds the overall length of the seat 11 of the largest size in total with the distance from the lower ends of the legs to the side cross-member and the overall width of the cross-beam 13. The height of the walls 5, 6, 7 and 8 of the body 4 exceeds the overall height of the back of the largest size in total with the overall height of the seat of the largest size. The height of the walls can be slightly increased to ensure that the entire set of seats and / or backs is stacked.

Unlike the kit in the first embodiment, the second set of student furniture has interchangeable ties in the width of the set's seats, which may have different lengths depending on the width of the seat.

To unify the components in the second set, the seat sets can have the same length from the front to the rear edges, but different widths.

The chair 10 of the set of student furniture, both in the first and in the second embodiment, has a seat 11 (Fig. 10, 11) with a recess 31 for supporting the pelvis and popliteal grooves 32 in the front edge of the seat to accommodate popliteal folds,

The backrest 18 of the chair of the second set, like the first, has supporting sections for the lumbar, middle and shoulder regions of the back, with the upper boundary

SUBSTITUTE SHEET (RULE 26) the supporting portion of the shoulder region of the back does not intersect the vertical plane drawn through the most distant back points of the lower ends of the hind legs.

During storage, in case of prolonged non-use of the kit by the user, or during storage, the kit chair can be easily disassembled on the seat backrest armrests and sidewalls.

The technology for disassembling and assembling the chair is quite simple, does not require special tools and skills, and is quite accessible to the average user.

Convenience of assembly is provided due to the minimum number of assembled parts and their connections and fasteners.

The components of the chair of the set of functional student furniture of the design described above for storage are placed in the school desk.

The components of the chair are placed in the school desk, pairwise stacking sidewalls and armrests with racks in pairs, while the long ends of the legs and racks are directed to one side, the seats are placed between the long ends of the legs of a pair of sidewalls, and the backrest is placed between the racks of a pair of armrests.

The development is of interest to small enterprises and manufacturers of similar products that do not have large production areas and structures for storage and marketing

SUBSTITUTE SHEET (RULE 26)

Claims

Claim

1. A set of functional orthopedic student furniture, comprising a desk-desk with supporting racks, on which a box-shaped case with a hinged tabletop-cover is mounted, and a chair made of prefabricated components - backs, seats, sidewalls, each of which is formed by front and rear legs interconnected by a cross member and armrests having front and rear legs mounted respectively on the front and rear legs, the cross member of each sidewall connecting the legs in their lower part, separating their short N lower ends and long - upper ends of the legs, and the distance between the front and rear racks of the armrests, as well as the distance between the front and rear legs of the sidewalls, is larger than the overall width of the seat or backrest, while the body is made to be placed in pairs stacked in piles of sidewalls and armrests with uprights, in which the long ends of the legs and uprights are directed to one side, as well as placing seats with a back in it, which are located respectively between the long ends but zhek pair of sidewalls and between the racks of a pair of armrests.

2. A set of functional orthopedic student furniture according to claim 1, characterized in that the seat and backrest have a detachable connection to each other, and the armrest with racks and the side of the seat on each side of the chair have a detachable connection between themselves and with the side of the seat.

3. A set of functional orthopedic student furniture according to claim 1, characterized in that the box-shaped case of the desk-desk formed by the front, rear, side walls and the bottom has a distance between the front and rear walls of the box-shaped cabinet exceeding the overall dimension of the armrests with racks, measured in the direction armrest lengths.

4. A set of functional orthopedic student furniture according to claim 1, characterized in that the distance between the side walls of the box-shaped body exceeds the overall length of the backrest in the total overall dimensions of the armrest, measured in the direction of the length of the uprights.

5. A set of functional orthopedic student furniture under item 1, characterized in that the distance between the side walls of the box

SUBSTITUTE SHEET (RULE 26) body exceeds the overall length of the seat in total with the distance from the lower ends of the legs to the side wall cross member and the overall cross width.

6. A set of functional orthopedic student furniture according to claim 1, characterized in that the height of the walls of the body exceeds the overall height of the backrest in total with the overall height of the seat.

7. A set of functional orthopedic student furniture, comprising a school desk with supporting racks on which a box-shaped case with a hinged tabletop cover is mounted, and a chair with a set of interchangeable seats and / or backs, including at least two different sizes of seats and / or backs, and the chair is made of prefabricated parts of N - the back and seats of one of the standard sizes of the set, as well as the sidewalls, each of which is formed by front and rear legs connected by a cross member, back, and armrest c, with front and rear racks mounted respectively on the front and rear legs, and the cross-member of each sidewall connects the legs in their lower part, separating their short N- lower and long - upper ends, and the distance between the front and rear racks of the armrests, and also the distance between the front and rear legs of the sidewalls is made larger than the width of the seat or backrest of the largest size, while the body is made with the possibility of placing in it stacked in stacks of sidewalls and armrests from the rack mi, in which the long ends of the legs and racks are directed to one side, as well as seats with a back, which are located respectively between the long ends of the legs of a pair of sidewalls and between the racks of a pair of armrests.

8. A set of functional orthopedic student furniture according to claim 7, characterized in that the shape and dimensions of the backs and / or seats of the set are made taking into account the characteristics of the musculoskeletal system in children of at least two older and younger age groups.

9. A set of functional orthopedic student furniture according to claim 7, characterized in that the seat and backrest are detachably connected to each other, and the armrest with racks and the sidewall of the seat on each side of the chair are detachable to each other and to the side of the seat.

10. A set of functional orthopedic student furniture according to claim 7, characterized in that the table-desk body formed by the front, back,

SUBSTITUTE SHEET (RULE 26) the side walls and the bottom, has a distance between the front and rear walls of the box body, exceeding the overall dimension of the armrests, measured in the direction of the length of the armrests.

11. A set of functional orthopedic student furniture according to claim 7, characterized in that the distance between the side walls of the box-shaped case exceeds the overall length of the back of the largest size in total, the overall dimension of the armrest, measured in the direction along the length of the racks.

12. A set of functional orthopedic student furniture according to claim 7, characterized in that the distance between the side walls of the box-shaped body exceeds the overall length of the seat of the largest size in total with the distance from the lower ends of the legs to the side cross-member and the overall cross-width.

13. A set of functional orthopedic student furniture according to claim 7, characterized in that the height of the body walls exceeds the overall height of the backrest of the largest size in total with the overall height of the seat of the largest size.

14. A set of functional orthopedic student furniture according to claim 7, characterized in that the chair has interchangeable ties around the width of the set seats.

15. A set of functional orthopedic student furniture according to claim 7, characterized in that the seat sets are the same length from the front to the rear edges and different widths.

16. Chair set functional orthopedic student furniture under item 1, 7, characterized in that the seat has a recess for supporting the pelvis, the surface of which is associated with the surface of the popliteal grooves in the front edge of the seat, designed to accommodate popliteal folds,

17. The chair according to claim 16, characterized in that the back of the chair has supporting sections for the lumbar, middle and shoulder region of the back, and the upper boundary of the supporting section of the shoulder region of the back does not intersect the vertical plane drawn through the most distant back points of the lower ends of the hind legs.

18. The chair according to claim 16, characterized in that the side racks of the backrest have ends protruding downward from the lower cross member, and the connection of the seat and backrest is made by placing these ends in the shape of their

SUBSTITUTE SHEET (RULE 26) the cross-section of the holes made in the rear of the seat at its sides, with each end of the stand_fixed in the seat by means of a tightening screw passed into the hole made on the side of the seat and into the hole made at the end of the backrest, ending in a threaded socket, while the screw is screwed into the threaded hole of the threaded socket.

19. The chair according to clause 16, characterized in that the connection. the armrest and sidewalls with a seat on each side of the seat are made using two tightening screws, one of which is inserted into the hole made in the front armrest post, the hole made in the front leg of the sidewall and into the hole with a threaded socket made in the side of the seat near it the front edge, while the screw is screwed into the threaded hole of this threaded socket, and the other tightening screw is passed into the hole made in the rear armrest post, into the hole made in the rear leg of the sidewall, a hole with a threaded socket formed in the lateral side of the seat at its rear edge, wherein the screws are tightened into the threaded hole of the threaded socket.

20. The chair according to claim 16, characterized in that the cross members of the legs of the sidewalls are interconnected by a coupler, the ends of which are connected to the middle part of these cross members by a detachable connection.

21. The chair according to claim 16, characterized in that a series of holes are made along the length of the legs of the sidewalls and armrest racks with the same pitch.

22. The chair according to claim 16, characterized in that the armrest racks are connected to the sidewall legs with additional clamping screws passed into the holes of the armrest legs and racks.

23 Chair according to claim 16, characterized in that the seat, in its continuation behind the back, has an extended rear.

24 Chair according to claim 16, characterized in that a cut-out is open on the back of the seat from the rear edge of the seat.

25. The method of transforming a set of functional orthopedic student furniture according to claims 1, 7, 16, in which the chair is disassembled into components, and placed in the school desk, stacking sidewalls and armrests with racks in pairs, while the long ends of the legs and racks sent in one direction, the seats are placed between the long ends of the legs of a pair of sidewalls, and the back is placed between the racks of a pair of armrests.

SUBSTITUTE SHEET (RULE 26)