RU40851U1 - KIT OF FUNCTIONAL ORTHOPEDIC SCHOOL FURNITURE - Google Patents

Abstract

The proposed utility model relates to light industry, in particular, to student furniture, used mainly in educational institutions.

The utility model is a set consisting of a school desk and a chair, ensuring the development and maintenance of physiologically correct posture in the child during work and rest.

Height-adjustable furniture set has expanded functionality, is comfortable and convenient in operation due to the introduction of bookshelves and aprons into the desk-desk, which together with the vertical racks make up its frame.

The design of the table has increased rigidity due to the displacement of the vertical posts to the middle of the frame, which, in turn, reduces bending moments in the pipes that make up the frame and legs of the table.

A more perfect and easy-to-use mechanism for fixing the tabletop in horizontal or inclined positions was used.

Fixation of pipes in each telescopic pair of the set is carried out by means of two bolts, the distance between which is equal to the pitch of the height change, which allows to reduce the length of the pipes included in these telescopic pairs.

The seat support is connected to the frame by means of one telescopic stand, and the shapes of its seat and back are identical to the forms of the parts of the human body in contact with them.

Description

The inventive utility model relates to light industry, in particular, to student furniture, used mainly in educational institutions.

A set of functional student furniture is known, comprising a school desk, including a frame consisting of supports and vertical racks made of bent pipes for installing a tabletop, an armchair including a frame made of bent pipes, forming a base with a seat and a back - German Patent No. 2737349, Cl . A 47 B 39/02, 1978.

However, the known design is not comfortable enough and easy to use, since it does not provide the possibility of its use for students of various physiques and ages.

A set of functional orthopedic student furniture with frames made of metal pipes is also known, including a school desk, consisting of supports, vertical struts with struts for installing countertops connected by crossbars, and a chair consisting of a base with inclined racks that form a backrest, which has a rigid back associated additional sections creating armrests, a seat connected to the uprights, and a strut articulated to the base bar and the seat, and the desk racks, desks, and under the braid of the chair frame is made telescopic to ensure interconnected height adjustment of the tabletop, seats and backs with armrests in accordance with the growth of users, and their holes are made in proportion to the same pitch - PU patent No. 2132148, Cl. A 47 B 39/02, 06/27/1999.

However, the known design does not allow to achieve physiologically correct rigid contours of the seat back and armrests, contributing

relaxation of users during the educational process and rest, maintaining proportionality and aesthetics of the kit when adjusting for height, and the absence of a shelf for books and school supplies, as well as an apron that covers knees, reduce the functionality when using furniture.

A set of functional orthopedic student furniture is also known, with frames made of metal pipes, including a school desk, consisting of supports telescopically connected to vertical stands that are interconnected and have struts with hinges for installing the tabletop, as well as clamps for turning and fixing it at an angle or in horizontal position, and a chair consisting of telescopically connected bases, seats and backs with struts tilted at an angle of 75 ° to the base, and an armrest rigidly fixed to them nicknames, moreover, these telescopic joints of the kit have holes for locking bolts, made with a proportionally identical pitch for five levels of proportional height adjustment of the table top of the desk, as well as the seat and backrest with armrests of the chair - Patent PU No. 2153276, Cl. A 47 B 39/02, 07.29.1999.

However, the known design does not implement a number of necessary functions of student furniture, contributing to the convenience of using it.

The known design of the school desk does not have a shelf for books and school supplies, and the vertical racks protruding above the surface of the countertop, when it is horizontal, create inconvenience or inability to work, for example, with drawings or other papers in a format commensurate with the size of the countertop.

The absence of an apron in the desk-desk, an element that covers the student’s knees from the oncoming gaze, causes, especially in girls, stiffness and psychological pressure when sitting at the desk.

The technical solution of the layout of the table is also not optimal in terms of the rigidity of its design.

The offset of the vertical struts, on which the tabletop and supports are mounted, from the middle of the table create, due to the cantilever arrangement of these elements, a bending moment proportional to the lengths of these consoles.

The disproportionality of such an arrangement in the known design is caused by the fact that the tabletop latches must go into the holes of the vertical table racks, offset from the center of the tabletop to the periphery. All this requires an increase in the cross section of the base pipes and vertical struts, and this, in turn, leads to a heavier and more expensive structure.

And in the design of the chair, the use of two inclined racks, two supports with a crossbeam and a telescopic strut complicates, aggravates and increases the cost of its construction.

The technical result, which the proposed technical solution is aimed at, is to create student furniture that can be adjusted according to the user's height with enhanced functionality, ease of use, with increased rigidity and lower construction cost.

The specified technical result is achieved due to the fact that in the set of functional orthopedic furniture with frames of metal pipes, including a desk-desk, consisting of supports telescopically connected to vertical racks, which are interconnected and have struts with hinges for installing countertops, as well as clamps for turning and fixing the countertops at an angle or in a horizontal position, and a chair consisting of telescopically connected seat bases and backs inclined at an angle of 105 ° to the base one Kami, and fixed on them armrests, these compounds have a telescopic set of locking holes for bolts formed with the same pitch in proportion to the five levels of the proportional adjustment of the height-desk worktop section, as well as the seat and back with armrests of the chair.

The vertical racks of the desk frame are fixedly connected to the struts, these connections being made offset to the middle of the struts, and the pipes serving as guides of additional telescopic pairs for turning and fixing the tabletop plane in an inclined or horizontal position are fixed to the ends of the struts, the tabletop frame is pivotally connected to rods entering with a gap in these pipes, and the pipes and rods that make up these telescopic pairs have transverse holes of the same diameter for passage through them the locking rods of circular cross section, in addition, the holes of the rods are interconnected by grooves whose length is equal to the height of the tabletop from the horizontal when the plane rotates around the hinge, and the locking bar has a control handle and two understatement sections, the planes of which are perpendicular to the long side of the handle, and which pass through the grooves of the rods.

A shelf is fixed to the struts of the vertical racks with screws, and an apron is fixed to the pipes of additional telescopic connections.

The table-desk supports are interconnected by a crossbar, and the seat frame of the chair is connected to the support by means of a vertical telescopic pair, and to the back by two telescopic pairs inclined at an angle of 105 ° to the horizontal.

All the telescopic pairs of the kit, except the additional ones, have six holes with a thread cut in the inner pipes of these pairs, and two holes with equal pitch in the outer pipes to fix these telescopic pairs with bolts at five height levels.

The table top, seat and back of the chair are made of materials that are approved for use and ensure environmental safety during operation, and the seat and back of the chair have a shape identical to the shape of the parts of the body in contact with them.

Figure 1 presents the desk-desk of the student set; figure 2 additional telescopic pair of desk-desks with a bar-latch and a control handle; figure 3 chair kit.

The set of functional student furniture contains a school desk (see Fig. 1), consisting of a frame having two vertical posts 1, each of which is rigidly fastened with struts 2, the ends of which are welded to the pipes 3, and a tabletop consisting of a cover 4 and two pipes 5 making up its frame.

Pipes 5 have openings for swivel joints 6 with struts 2 at one end, and grooves for swivel joints 7 with rods 8 at the second end.

Vertical racks 1 are telescopically connected to legs 9, which, in turn, are interconnected by a crossbar 10.

Racks 1 are welded to struts 2 with an offset to their middle. From the bottom of these struts, screws fixed the shelf 11, and to the pipes 3 an apron 12.

The pipes 3 and the rods 8 installed inside them make up an additional pair for turning the tabletop around the hinge 6.

The rods 8 of these telescopic pairs (see figure 2) have two holes 13, interconnected by grooves 14, the length of which determines the height of the tabletop from the horizontal when it is rotated around the hinges.

Pipes 3 have transverse openings 15, with a diameter equal to openings 13, for installing a locking rod 16 of circular cross section. This rod has two understatements 17, on each side of the locking rod, forming jumpers with a thickness equal to the width of the groove 14, and passing through the corresponding holes 13 in the rods 8.

At one end of the locking rod 16, a control handle 18 is fixed, the long side of which is perpendicular to the understatement planes 17.

The chair (see figure 3) of the kit has a frame, which is a welded structure consisting of: pipes 19, pipes 20 welded at an angle of 105 ° to them, a transverse tie 21 and a vertical strut 22.

A seat 23 is fixed to the pipes 19 with screws and has recesses 24 that are identical in shape to the parts of the human pelvis in contact with the seat.

The vertical strut 22 is inserted into a support consisting of a pipe 25 and legs 26 welded to it.

In the pipe 19 inserted rack 27 with pipes welded to them 28 for mounting the armrests 29.

Racks 27 are interconnected by a back 30 having a shape identical to that of the human back in contact with it.

All the telescopic pairs of the set, except for the additional ones, have six holes 31c in each inner pipe with cut threads and equal pitch, and two holes 32 of the same pitch in the outer pipes of these pairs 32 for fixing these telescopic pairs with bolts at five levels.

The ergonomic design of the height-adjustable set of student furniture and the expansion of its functionality is achieved through the introduction of a convenient shelf for books and school supplies, as well as a more convenient rotary mechanism for fixing the tabletop in an inclined or horizontal position.

The introduction of an apron into the design of the school desk, covering the knees of the sitting and used as an additional cross-member, creating the table frame, as well as the displacement of the vertical telescopic pair to the middle of the strut, leading to a decrease in bending moments at the points of attachment of this pair to the legs and strut, increase the rigidity , reduce metal consumption and cost of construction.

In addition, due to the use of two bolted joints in telescopic pairs of the set with a step equal to the lifting step in height of the elements of the set, it reduces the length of the parts included in these pairs and increases the reliability of their fastening.

Claims (1)

A set of functional orthopedic student furniture with frames made of metal pipes, including a school desk, consisting of supports telescopically connected to vertical stands that are interconnected and have struts with hinges for installing the tabletop, as well as clamps for turning and fixing the tabletop at an angle or in a horizontal position, and a chair consisting of telescopically connected bases, seats and backs with struts tilted at an angle of 75 ° to the base and armrests rigidly fixed to them moreover, these telescopic joints of the kit have holes for the locking bolts, made in proportion to the same pitch for five levels of proportional height adjustment of the table top of the desk, as well as the seat and backrest with armrests of the chair, characterized in that the vertical racks of the frame of the desk connected to the struts, and these connections are made offset to the middle of the struts, and to the ends of the struts are fixedly fixed pipes serving as guides of additional telescopic pairs to rotate and fix the plane of the tabletop in an inclined or horizontal position, the frame of the tabletop is pivotally connected to the rods entering with a gap in these pipes, and the pipes and rods that make up these telescopic pairs have transverse holes of the same diameter for passage through them of the locking rod round cross-section, in addition, the holes of the rods are interconnected by grooves, the length of which determines the height of the tabletop from the horizontal when turning its plane around the hinge, and the locking rod has a handle lines and two understated sections, the planes of which are perpendicular to the long side of the handle and which pass through the grooves of the rods, a shelf is fixed to the struts of the vertical racks, and an apron is fixed to the pipes of the additional telescopic connections, the table-desk supports are connected by a crossbar, and the seat frame of the chair is connected with support by means of a vertical telescopic pair, and with a back - two telescopic pairs inclined at an angle of 105 ° to the horizontal, all telescopic pairs of the kit, except for additional have six holes with a thread cut in the inner pipes of these pairs and two holes with equal pitch in the outer pipes for fixing these telescopic pairs with bolts at five levels of height, the table top, seat and back of the chair are made of materials approved for use and provide environmental safety during operation, and the seat and back of the chair have a shape identical to the shape of the parts of the human body in contact with them.