Extensible table with central leaf

Abstract

A table with a central extension, includes a frame, two movable trays bearing on the frame and adapted to be brought close to one another to constitute a continuous surface on their own, or to be symmetrically brought away from each other, or independently of each other to enable the set-up of one or several so-called central extension(s) between the movable trays. The edges of the movable trays and of the extension(s) include at least one tab located on a first half of the edge and a groove located on a second half of the edge, the tab having a height increasing from its distal edge up to its central portion and decreasing from its central portion up to its proximal edge, and the depth of the groove being larger than the tab height, enabling an assembly by mortise-and-tenon joint even when the trays and/or the extension are deformed.

Claims

1. A table with central extension, comprising a frame, two movable trays bearing on said frame and adapted to be brought close to one another so as to constitute a continuous surface on their own, or to be symmetrically brought away from each other, or independently of each other so as to enable the set-up of one or several central extension(s) between said movable trays, wherein edges of the movable trays and of said extension(s) include at least one tab located on a first half of said edge and a groove located on a second half of said edge, said tab including a first tab portion extending from a distal edge of the tab and having a length comprised between 30% and 50% of the total length of the tab and a second tab portion extending up to a proximal edge of the tab and having a length comprised between 30% and 50% of the total length of the tab, the first tab portion having a height increasing from the distal edge of the tab up to a central portion of the tab and the second tab portion having a height decreasing from the central portion of the tab up to the proximal edge of the tab, said tab having a length comprised between 30% and 50% of the length of the respective edge, and the depth of the groove being larger than the height of the tab, enabling an assembly by mortise-and-tenon joint even when the trays and/or the extension are deformed.

2. The table with central extension according to claim 1, wherein the tab includes ridges which are beveled.

3. The table with central extension according to claim 1, wherein the tab includes a recess in the central portion.

4. The table with central extension according to claim 3, wherein said recess has a trapezoidal general shape.

5. The table with central extension according to claim 1, wherein each extension includes, on a first edge, a tab and a groove and, on the opposite edge, a groove extending opposite the tab of the first edge and a tab extending opposite the groove of the first edge.

6. The table with central extension according to claim 1, wherein the movable trays and the extension(s) are made of HPL compact laminate.

7. The table with central extension according to claim 1, wherein the movable trays and the extension(s) have a thickness comprised between 8 mm and 20 mm.

8. The table with central extension according to claim 1, wherein the tabs and/or the grooves are machined on the movable trays and/or on the extension(s), or are attached to the movable trays and/or to the extension(s).

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) Other advantages and features will appear better from the following description of one single variant, provided as a non-limiting example, of the table with an extension in accordance with the disclosure, with reference to the appended drawings wherein:

(2) FIG. 1 is a perspective view of the table with central extension according to the disclosure,

(3) FIG. 2 is a side view of the table with central extension according to the disclosure,

(4) FIG. 3 is a top view of the frame of the table with central extension according to the disclosure,

(5) FIG. 4 is a top view of a central extension of the table according to the disclosure,

(6) FIG. 5 is a top view of the tab of a central extension of the table according to the disclosure,

(7) FIG. 6 is a side view of the edge of a central extension of the table according to the disclosure,

(8) FIG. 7 is a sectional view of the groove-tab assembly between a central extension and a movable tray of the table according to the disclosure.

DETAILED DESCRIPTION OF THE DRAWINGS

(9) In the following description of the table with an extension according to the disclosure, the same reference numerals refer to the same elements. The different views are not necessarily plotted to the scale.

(10) Referring to FIGS. 1 to 7, the table with central extension 1 according to the disclosure, comprises a frame 2, two movable trays 3, 4 bearing on said frame 2 and adapted to be brought close to one another so as to constitute a continuous surface on their own, or to be symmetrically brought away from each other, or independently of each other so as to enable the set-up of one or several so-called central extension(s) 5 between said movable trays 3, 4.

(11) In this particular example, referring to FIGS. 1 to 3, the frame 2 is constituted by a rectangular metallic frame 6, preferably made of aluminum, constituted by two spars 7 and two crosspieces 8 and at the angles of which feet 9 are secured, made of aluminum or of a rigid plastic material, said feet 9 being preferably inclined. The two spars 7 respectively comprise a coulisse 10 allowing increasing the dimensions of the frame 6, and inversely reduce the dimensions of the frame 6, for the set-up and respectively the removal of a central extension 5 between the movable trays 3, 4 which are secured to the frame 6 of each side of the coulisses 10.

(12) It is obvious that the frame 2 could have any shape and any structure yet without departing from the scope of the disclosure. Moreover, in this particular embodiment, the movable trays 3, 4 and the central extension 5 have a substantially rectangular shape. Nonetheless, it is obvious that the movable trays 3, 4 and the central extension 5 could have any shape yet without departing from the scope of the disclosure.

(13) Referring to FIGS. 4 to 7, the edges 11 of the movable trays 3, 4 and of the central extension 5 include a tab 12 located on a first half of said edge 11 and a groove 13 located on a second half of said edge 11, said tab 12 having a height increasing from its distal edge up to its central portion and decreasing from its central portion up to its proximal edge, and the depth of the groove 13 being larger than the height of the tab 12.

(14) Advantageously, the tab 12 has a length comprised between 40 and 50% of the length of the respective edge 11, and for example about 50%, and advantageously includes: a first tab portion 12.1 which extends from the distal edge of the tab 12 and which has a length comprised between 30 and 50%, and for example between 40 and 50%, of the total length of the tab 12, the first tab portion 12.1 having a height increasing from the distal edge of the tab up to the central portion of the tab, and a second tab portion 12.2 which extends up to the proximal edge of the tab 12 and which has a length comprised between 30 and 50%, and for example between 40 and 50%, of the total length of the tab 12, the second tab portion 12.2 having a height decreasing from the central portion of the tab up to the proximal edge of the tab.

(15) Advantageously, the groove 13 includes: a first groove portion 13.1 configured to receive the first tab portion 12.1, and a second groove portion 13.2 configured to receive the second tab portion 12.2.

(16) Depending on the dimensions of the central extension 5 and of the movable trays 3, 4, the edges 11 may include several tabs 12 and several grooves 13 yet without departing from the scope of the disclosure.

(17) In this particular example, the increasing portion and the decreasing portion of the tab 12 have the shape of a second-order polynomial curve.

(18) Referring to FIGS. 4 and 6, each extension includes on a first edge 11 a tab 12 and a groove 13 and on its opposite edge 11 a groove 13 extending opposite the tab 12 of the first edge 11 and a tab 12 extending opposite the groove 13 of the first edge.

(19) Moreover, referring to FIGS. 4 and 5, the tab 12 includes in its central portion a recess 14 which opens into a top surface of the tab 12 and which is located between, that is to say configured to separate, the first and second tab portions 12.1, 12.2. Thus, the first tab portion 12.1 has a height increasing from the distal edge of the tab 12 up to the recess 14, and the second tab portion 12.2 has a height decreasing from the recess 14 up to the proximal edge of the tab 12.

(20) According to a variant that is not represented in the figures, the recess 14 could however be provided in the second tab portion 12.2.

(21) In this particular embodiment, said recess 14 has a trapezoidal general shape; nonetheless, it is obvious that said recess 14 could have a V-like general shape yet without departing from the scope of the disclosure.

(22) In addition, in a common manner, with reference to FIG. 7, the ridges of the tab 12 are beveled and/or rounded.

(23) Incidentally, the movable trays 3, 4 and the extension(s) 5 are made of HPL compact laminate, commercialized for example by the company POLYREY, or of any other equivalent composite material, and have a thickness comprised between 8 and 20 mm.

(24) The tabs 12 and the grooves 13 of the extension 5 and of the movable trays 3, 4 enable assembly by mortise-and-tenon joint of the movable trays 3, 4 together or of the movable trays 3, 4 with the central extension 5 which confers a larger surface of the planar tray despite the possible deformations of the movable trays 3, 4 and/or of the extension 5, the movable trays 3, 4 and/or the extension 5 being perfectly aligned, i.e. coplanar with one another, even when the trays 3, 4 and/or the extension (5) are deformed.

(25) It is obvious that the tabs 12 and/or the grooves 13 are obtained in the mass of the movable trays 3, 4 and/or of the extension(s) 5, or are attached yet departing from the scope of the disclosure.

(26) Finally, it is obvious that the examples that have just been given are only but particular illustrations that do not limit in any manner whatsoever the fields of application of the disclosure.