CZ42097A3 - Demountable table - Google Patents

Abstract

The invented folding table comprises a fundamental table leaf (1) of elliptic form and two side table leaves (2) being identical in both the size and shape and having the form of elliptic lunettes being slidably arranged in the table frame structure. The fundamental table leaf (1) is mounted with possibility of rotation and lift on an adjustable support (3) secured in the fundamental table leaf (1) center of gravity.

Description

Technical field • fiH U 0

BACKGROUND OF THE INVENTION The present invention relates to a folding table structure in which the elliptical shape of the base plate and its additional wings are used to obtain both the base and enlarged embodiments.

BACKGROUND OF THE INVENTION

Various arrangements are known for increasing the base surface of a table top. In some cases, the base plate is integral, usually rectangular in shape, enlarged by tilting the side wings mounted pivotally in hinges to the bottom surface of the table plate. The wings are usually rectangular in shape, but are also semi-circular. The construction of a rectangular table with a table top is very widespread, consisting of two identical halves, which are slidably arranged in the table frame construction. After expanding the two halves, the central split wing is revealed, which opens to a plane equal to the table surface and the two halves of the table top are aligned with the unfolded side wing. The resulting position of the parts is secured against mutual movement by axial guide pins, latches, etc. A modification of this arrangement is the folding structure of a table with a central hinged wing, equipped with four legs, where the table frame is divided with table top and its halves are connected by plug .

The described folding table structures are mostly confined to conventional table types with a rectangular table area and, from an aesthetic point of view, its cumbersome division into symmetrical halves interferes with the disintegration of the central part of the table into relatively small areas of the folding center wing.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a folding table structure which allows the use of unconventional table top shapes while reducing the complexity of the folding mechanism.

2. Summary of the Invention

The object of the present invention is that the base table is elliptical in shape and the side table wings are formed in the form of elliptical limes with concave elliptical sidings, both side wings being The base plate is rotatably mounted in a vertically adjustable support. The radius of curvature of the concave elliptical cut-out of both side wings is equal to the radius of curvature of the base table on the side of the shorter axis of its ellipse. The length of each of the side wings is equal to at most half the length of the base table, measured in the longer axis of the ellipse.

In this arrangement, the table retains pure elliptical shapes in both the folded and unfolded states, and in particular the simplicity and speed of converting the table surface into both functional shapes stands out.

BRIEF DESCRIPTION OF THE DRAWINGS

The solution according to the invention is explained in more detail in the accompanying drawings in four figures showing the folding of the table into a basic elliptical shape, each figure showing a top plan view and below a side view of the folding table in individual adjustment phases: Fig. 1 is an exploded table view. Fig. 2 is a view of the table in the phase with the base plate lifted; Fig. 3 shows the rotation of the central lifted table plate, retracting the side wings and then lowering the base plate to the starting position; parts.

Exemplary embodiment

As can be seen from the figure, the base plate 1 has an elliptical shape with a certain radius

Ri of curvature, described above the shorter ellipse half-axis. The additional side stacks of the lunette-shaped wing 2 have an outer elliptical outline, the same size and are provided with a concave elliptical

- by cutting with a radius R ₂ equal to the radius of curvature R1 of the elliptical curvature of the base table 1. The sum length 2D _{2 of the} two side table wings 2 is at most equal to the length Di of the longer axis of the base table ellipse. mounted on an adjusting support 3 of some of the known structures, allowing the base plate 1 to be lifted, lowered and rotated in the table frame.

In the disassembled state shown in FIG. 1, the side table wings 2 with the base table 1 are aligned.

The first stage of folding the table is shown in Fig. 2 and the arrow shows the first operation, the lift of the base table 1

In the second phase shown in FIG. 2, the base table is rotated 90 ° on the adjusting support 3, the two side wings 2 are brought together and then the base table 1 is lowered again onto the folded side wings 2 by means of the adjusting support 3. and this end phase, in which the table is in the collapsed state, is shown in FIG. 4.

Claims (3)

PATENT CLAIMS A folding table with a base table top and two additional side table wings slidingly arranged in a table frame structure, characterized in that the base table top (1) is elliptical in shape and the additional side table wings (2) are in the shape of elliptical lunettes with with a concave elliptical cutout (4), wherein the base table (1) is supported by its lower surface on an adjusting support (3) for lifting and rotating the base table (1). 2nd Folding table according to claim 1, characterized in that the radius R ₂ of curvature of the concave elliptical cutouts (4) of the two lateral wings of table (2) is equal to the radius R of curvature of the basic table plate (1) on its driveshaft shorter ellipse. Folding table according to the preceding claims, characterized in that the length D _{2 of} each of the side table wings (2) is equal to at most one half of the largest length D ₁ of the base table (1).