RU170064U1 - Furniture support - Google Patents

Abstract

The utility model relates to the furniture industry, namely to the legs for furniture tables, chairs, designed for use in the interiors of residential, administrative, public and other structures. The furniture support contains two pairs of staple-shaped legs, deployed relative to each other and connected to each other by vertical sides by means of bushings, with a gear being installed on one leg of each pair, which engages with the gear gear of the other leg of this pair. The technical result of the claimed utility model is to simplify the folding and unfolding of the furniture support, increasing the reliability and durability of the support. 5 cp f-ly, 7 ill., 1 ave.

Description

The utility model relates to the furniture industry, namely, supports for furniture, in particular, for tables, chairs, designed for use in the interiors of residential, administrative, public and other structures.

The following technical solutions are known from the prior art.

Known support for furniture, characterized by the implementation in the form of four tubular support elements of a C-shaped form, pivotally connected to each other (patent for industrial design RU No. 52911, publication date 08/16/2003).

A disadvantage of the known solution is the difficulty of assembling and disassembling the support structure, due to the need to rotate the extreme legs almost 360 °, as well as the need to further secure the two extreme legs relative to each other by means of a locking device - a pin and bushings. In one sleeve, the pin is inserted with an interference fit for fixing in it, in the other sleeve - with the minimum necessary clearance, allowing the pin to scroll in it. Each of the bushes is welded to its leg so that when the free end of the pin enters the free bush, it allows the legs to rotate freely along the axis of the pin-bush. Another disadvantage of this solution is that for folding the structure requires partial disassembly. In addition, the pin-sleeve connection is conditionally open, that is, with careless handling of the product, dirt, sand, dust can get into this connection and cause it to jam, or the product cannot be assembled, which complicates the assembly and disassembly of the support.

A table is known comprising a tabletop with a folding table pivotally hinged to it, having the possibility of arranging a folded tabletop on the side of the tabletop in the folded position of the table. Two tubular legs are pivotally attached to the support frame from its two opposite sides. Each of the legs has bent to one side from their middle part and in the same plane with their middle part, the upper and lower ends of the legs. Each of the legs has the ability to independently rotate on hinges relative to the support frame for installing legs when unfolding or folding the folding table. The upper ends and respectively the lower ends of each pair of legs can be brought closer to each other or moved apart at an angle along the radii relative to the centers of the hinges lying on the same axis (RU No. 78046, publication date 11/20/2008).

The disadvantage of this design is the complexity of its transformation into a folded (unfolded) state, associated with the lack of the ability to fold (decompose) it in a stable position and the need to turn the table and further influence the design of the table for its folding (folding).

The closest analogue to the claimed technical solution is a folding table containing two C-shaped frames of circular cross section, containing upper horizontal sections, vertical sections and lower horizontal sections. The frames are rotatably connected to each other. The frames are connected by means of a connecting element with the possibility of their free movement. When the frames are in the working position, the side surfaces of the sections are located opposite each other, while the table cover is in a horizontal position. In the assembled state, the frames are rotated until a closed position is reached, parallel to each other. The table can be folded into a compact state by turning the frame and folding the top cover (JP No. 2001128738, publication date 05/15/2001).

The disadvantages of the closest analogue are the insufficient stability of the table when unfolded, the difficulty of folding and folding the table due to the need to keep the entire structure from falling when turning the legs unconnected to the tabletop by 220 ° -230 °.

The technical problem of this technical solution is the creation of a reliable and maintainable construction of the furniture support, which has a simple structure and high performance.

The technical result of the claimed utility model is to simplify the folding and unfolding of furniture support, increasing its reliability and durability.

The technical result is achieved through the implementation of a support for furniture, containing two pairs of staple legs, deployed relative to each other and connected to each other by vertical sides by means of bushings, moreover, on one leg of each pair there is a gear gear engaged with the gear gear of the other leg of this pair .

Due to the legs of the folding support for furniture of a staple shape and due to their deployed position relative to each other, the possibility of a stable position of the support is ensured, including when placing it on a horizontal surface due to the presence of lower bent sections, and placing the necessary horizontal support on the upper part of such a support the surface of an element of furniture (for example, countertops or chair seats) due to the presence of upper bent sections. The presence of medium vertical sections allows reliable connection of the legs of the support with each other.

By placing on the vertical sides (sections) of each staple-shaped leg (i.e., on the middle part of each leg) a sleeve adjacent to the bushings of the remaining legs, reliable connection of all legs to each other is ensured, which makes it possible to simplify their rotation in the vertical plane inside sleeves for folding and unfolding.

Due to the presence on each leg of each pair of gear gear engaged with the gear of the other leg of this pair, it is possible to easily fold and unfold the support when its legs are rotated relative to each other, since each pair of legs can be folded when turned vertically plane of at least one leg.

The presence of gear connections and bushings connected to each other, provides increased reliability and durability of the support structure due to the smaller number of mating parts necessary for turning and fixing the legs in the unfolded (folded) state.

The connection of the legs is movable, which makes it possible to change the position of each leg relative to the sleeve (for example, when the leg is rotated inside the sleeve) and relative to other legs (folding the legs). The upper ends and, respectively, the lower ends of the legs of each pair can be brought closer to each other or moved apart at an angle with respect to each other (regardless of the other pair of legs) when at least one leg is rotated in the vertical plane, which is achieved by pairwise gear connection of the legs. At the same time, for folding and unfolding the legs, it is not necessary to turn the support over and spend additional efforts. This embodiment simplifies the folding and unfolding of the furniture support.

When using the claimed design of the furniture support, the time required for its transformation is additionally reduced by reducing the number of manipulations to bring it from the folded position to the unfolded position (and, conversely, to bring it from the unfolded state to the folded state).

In the particular case of the implementation of the claimed utility model, between the bushings a vertical rack (frame) can be installed for attaching to it a table top or chair seat. When using the claimed support structure as part of the table, the legs of the support do not interfere with the knees of sitting people (a person does not hit the leg of the table with his knees, because if necessary, their position can be changed without losing stability of the support).

Restrictive shoes can be placed at the lower ends of the legs to reduce the possibility of the table tipping over when folded.

At the ends of the legs can be fixed plugs made with the possibility of rotation to move the table when folded

Each leg can consist of two collapsible parts.

The legs of the support can be made in the form of metal pipes. The vertical support column, as well as the legs of the support, can be made in the form of a pipe of round, triangular or square profile.

Next, the solution is illustrated by reference to the figures, which depict the following.

In FIG. 1 - support for furniture when unfolded;

In FIG. 2 - support for furniture in a partially unfolded form (top view);

In FIG. 3 - support for furniture when folded;

In FIG. 4 - support for furniture when folded (top view);

In FIG. 5 is a particular example of a support sleeve with a vertical strut and a horizontal plate for attaching a tabletop to it;

In FIG. 6 is a particular example of a furniture support with collapsible legs consisting of two parts;

In FIG. 7 is a particular example of connecting legs of a support with a folding tabletop.

In the particular case of the utility model, the furniture support contains four C-shaped legs 1 with upper and lower horizontal sections 2 and 3 and vertical sections 4 located in the middle. On the vertical sections of the legs there are connecting elements - bushings 5, interconnected, as well as gear gears 6 (washers with gear sectors). A gear gear is installed on the leg of each pair, which engages with the gear gear of the other leg of this pair (i.e. legs are paired with each other). The connecting element, made in the form of bushings, contains a vertical strut 7 (pipe, frame). A plate with holes for self-tapping screws is welded to the upper end of the rack for fastening, for example, to the countertop 9. At the ends of the legs, caps 8 are fixed.

In the particular case of the implementation of the claimed utility model, the furniture support is intended to be connected to the back side of the folding tabletop 9 (table top), divided, for example, into three parts (the central part and two “wings” connected to the central part via hinge loops). In this case, the legs of the support can be folded when they are rotated in a vertical plane both separately from the countertop and together with it (see Fig. 7).

In this case, in the folded position, pairwise connected table legs are located along the “wings” of the countertop.

The operation of the claimed solution, in the particular case, is as follows.

To open the table from the folded position, one of the wings of the tabletop is lifted with one hand and, holding the bracket with the other hand, turn the table leg under the "wing" of the tabletop until it stops. In this case, the second leg is rotated to the working position due to the gear connection with the first, forming an angle of 90 ° between the legs. In the lowered position, the wing of the countertop rests on the brackets. The same actions must be carried out with another wing of the countertop.

Folding is carried out in the reverse order: holding the wing of the countertop with your hand, turn one of the legs by the bracket into the folded position. The second leg will automatically rotate to the folded position, forming 180 ° with the first leg. Then lower the wing of the countertop.

Example 1

The legs of the support are made of C-shaped metal pipes. The countertop is made of chipboard, MDF or solid wood.

A plate with holes for self-tapping screws for welding to the countertop is welded to the upper end of the vertical rack. Bottom of this rack, parallel to it, on the ribs, are welded bushings, which lower ends rest on the ends of the C-shaped legs. The center parts of the legs are coaxially located inside the bushings. The central parts of the legs are made with a length greater than the length of the bushings, while they protrude from above to attach brackets to them, on which the tabletop rests, and gears (washers), with a gear sector with an angle of 45 °. The gear sectors of gears are interlocked with each other only under one of the wings of the countertop, without affecting the other, and are necessary so that when one leg is rotated around its axis, the second leg also rotates, but in the opposite (opposite) direction, while turning between the legs varies from 90 ° to 180 °. The central sections of the legs, gears and brackets are connected to each other by means of pins and are made to rotate in the bushings as a whole.

The ends of the legs are plugged with plugs (plugs), which cover the outside of the surface of the lower and upper ends of the legs. The plugs are made of friction elastic plastic or rubber, which is necessary to eliminate the sliding of the lower ends of the legs of the support on the floor surfaces and the upper ends of the legs on the surfaces of the metal plates fixed to the bottom of the tabletop, in the places where the upper ends of the legs of the folding table stop in their unfolded position.

This design can be used:

- like dining and serving tables, stools for a small apartment;

- like folding computer tables;

- tables and stools for children's playrooms;

- like country furniture;

- tables for outbound trade or special occasions, etc.

Thus, the claimed design allows you to quickly bring the folding support from the folded position to the unfolded when exposed to its legs on one side only, without the help of unauthorized persons, there is also no need to hold the entire structure when unfolding and folding.

Claims (6)

1. Furniture support, characterized in that it contains two pairs of staple-shaped legs, deployed relative to each other and connected to each other by vertical sides by means of bushings, moreover, on one leg of each pair there is a gear gear engaged with the gear gear of the other leg of this pair . 2. A furniture support according to claim 1, characterized in that a vertical rack is installed between the bushings for attaching the table top, seat of the chair or for attaching the pots to it. 3. A furniture support according to claim 1, characterized in that restrictive shoes are placed on the lower ends of the legs. 4. Support for furniture according to claim 1, characterized in that the end caps are fixed to the ends of the legs. 5. A furniture support according to claim 1, characterized in that each leg consists of two collapsible parts. 6. A furniture support according to claim 1, characterized in that the legs are made in the form of metal pipes.

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