FR2658056A1 - SUPPORT WITH WOODEN PIETEMENT. - Google Patents

Abstract

The invention relates to a support provided with a wooden base which can be produced in a simple and inexpensive manner, but exhibiting great rigidity. The base (3) consists of at least three legs (4, 5, 6) which are crossed and assembled in a middle zone and whose upper ends (4 ', 5', 6 ') are fixed to a piece of 'seat (1) of the support. The feet are provided with side notches allowing their mutual assembly by interlocking. Each leg can be fixed to the seat element (1) by a simple screw, so that the base can be dismantled and the support can be mounted by an unqualified person. Applications: individual or multi-seater seats, chairs, tables, pedestal tables.

Description

WOODEN DECK SUPPORT

  The present invention relates to a support comprising an element and at least three feet each having an upper end attached to the seat element and a lower end to be placed on

a soil.

  Attaching the legs to the seat element of a wooden support for the realization, for example, of seats, chairs or tables, generally requires a rigid assembly which is obtained through different

  means such as interlocking and gluing, pegging.

  In use, these assemblies are subjected to considerable bending forces and must have dimensions large enough to not take the game It is therefore necessary to provide, under the seat element, relatively high parts to ensure embedding the feet, and / or installing sleepers connecting the feet together These solutions increase both the weight and the cost of manufacturing the support. Other types of legs have been created to avoid these problems,

  but also have some disadvantages.

  The base of the type "sled laminated wood sled" has little or no problems of assembly, but it is relatively heavy and its price

  is much higher than a classic base.

  We also know a type of base called "K" where the feet back and

  the front feet of the support meet at the back of the seat element.

  However, this footing is heavy and presents difficulties in assembling

  and robustness problems because the seating element is

entirely cantilevered.

  The object of the present invention is to avoid the disadvantages mentioned above by providing a support provided with a base which is both simple, rigid and durable, and which can be manufactured in a way that is

  expensive and with little or no metal parts.

  For this purpose, the invention relates to a support of the type indicated in the preamble, characterized in that the feet are inclined so as to intersect all three in a central zone where they are joined to each other.

others by interlocking.

  Preferably, each foot is formed by a substantially straight piece of wood. Said piece of wood may have a rectangular cross-section in

outside said middle zone.

  In a particular embodiment, at least one of the legs has an enlarged or bifurcated shape below said median zone, so as to have two support points distant from each other at its lower end. In a preferred form of the invention, the support comprises a median foot, disposed in an inclined position in a vertical median plane, and two lateral feet arranged in symmetrical positions, one of

  the other with respect to said median plane.

  An advantageous embodiment consists in that each lateral foot comprises, in its middle part, a notch for its interlocking with the median foot, and in that at least one of the lateral feet

  has a notch for its interlocking with the other side foot.

  Preferably, the median foot is arranged to fit on the median parts of the two lateral feet joined to each other, so as to

  maintain said middle portions assembled.

  The median foot may comprise a median portion with a reduced section defined on two opposite sides by two lateral notches having generatrices parallel to a direction of interlocking of the foot, the corresponding notches of the lateral feet possibly having a shape which

  corresponds to said reduced section.

  All surfaces of said notches can be flat.

  In a preferred form of the support according to the invention, the end

  bottom of each of the side legs is at the back of the seat.

  The present invention and its advantages will become more apparent in the

  following description of various exemplary embodiments, with reference to

  FIGS. 1 is a perspective front view of an embodiment of a chair according to the present invention; FIG. 2 is a perspective view of the back of the chair frame of FIG. 1, Figures 3 to 3 c are elevational views of three faces of a median foot of this chair, Figures 4 a to 4 b are elevational views of the four faces of a side foot of this chair, FIGS. 5a to 5d are elevation views of the four faces of another lateral leg of this chair, FIG. 6 is an elevational view of another embodiment of a median foot that can be used with the lateral feet. FIGS. 4 and 5, FIG. 7 represents a storage mode of a chair according to FIG. 1, and FIG. 8 represents another form of the invention, in the form of

a two-seater seat.

  FIG. 9 represents another form of the invention, in the form

a bar stool.

  With reference to FIGS. 1 to 5, the support represented is a wooden chair comprising a seat element 1, a backrest 2 and a base 3 composed of three legs 4, 5 and 6 The seat element 1 and the backrest 2 may be of any construction, for example molded wood,

  laminated, and they can be made in one piece.

  The feet 4, 5 and 6 have upper ends 4 ', 5', 6 'which are cut obliquely and slightly recessed to bear against the underside of the seat element 1, against which they can be held for example by means of screws, glued trunnions or other conventional fasteners. The three legs intersect and are fixed to one another in their central zone, approximately halfway between the ground and the element. 1 and they have lower ends 4 ", 5" and 6 "which are also cut at an angle to support the ground Against the clock particularly in Figure 2, the foot 4 is disposed in a vertical midplane 8 forming a plane of symmetry of the chair, it is inclined so that its upper end 4 'is at the rear of the seat element 1, while its lower end 4 "is forward The feet 5 and 6 are arranged symmetrically in relation to the median plane 8 and they are called "side feet" Their upper ends 5 'and 6' are near the front of the seat element 1, while their lower ends 5 "and 6" are at the rear and ensure good lateral stability of the chair when

  the user is pressed on the folder.

  Figures 3 to 5 show in more detail the feet 4, 5 and 6, which can all be made from simple pieces of rectilinear wood with rectangular cross-sections. To manufacture these feet, except for the manner of their upper and lower ends, in the middle part, lateral notches are made which allow them to be assembled by interlocking. As shown in Figures 3a to 3c, the median foot 4 has a front face 10 which is flat It has two lateral notches 11 and a rear cut 12 which delimit a middle section 13 section

  reduced cross section of rectangular shape.

  Referring to Figures 4 and 5, each side foot 5, 6 has in its central part, a groove-shaped side cut 14, 15 rectangular section extending over half the thickness of the foot and having the same width the other foot, which allows to assemble the two feet 5 and r in the form of X, by lateral interlocking on their notches 14 and 15 The feet 5 and 6 also have in their middle part, respective notches 16, 17 which have faces inclined with respect to the cuts 14, 15 and which define, when the two legs are assembled, a rectangular section groove in which the median portion 13 of the median foot 4 can be fitted above and below. this middle portion 13, the notches 11 and 12 of the foot 4 are delimited by two flat surfaces 18 and 19 which are parallel The intersections of these surfaces with the flat lateral faces of the portion 13 are straight lines defining the direction of fitting of the pi ed 4 on the other two feet 5 and 6, which he keeps assembled in a cross The foot 4 can be prevented from dislodging by a simple wood screw passing

  through its middle part 13 and taken in the wood of the other two feet.

  Note that the upper part of the base 3, assembled with the seat element 1, forms in space a T which is absolutely rigid, so that there is no bending force at the level of the upper end of each foot assembled to the seat element 1 In fact, the bending moments that can exist in the feet are not transmitted through the assemblies It follows that the base thus produced

  keep in time all its rigidity and stability.

  Another important advantage that emerges from the description above is

  that the support, especially its base, can be assembled very easily and with little labor which ensures a very low cost compared to a traditional base If it is not glued, the base can easily dismounted with a simple -6-

  screwdrivers, especially for delivery, shipping or storage.

  No special qualification is required for the reassembly of the

  support and there is no need for other hardware other than screws.

  Many other forms or variants of embodiments are possible. FIG. 6 shows an example of a median foot 20 that can be used with the lateral feet 5 and 6, in place of the foot 4, to produce a support having four ground support points. For this purpose, the foot 20 has a shape Bifurcated Y inverted It is formed by assembling two symmetrical parts 21 and 22 glued together along a flat surface 23 located in the median plane The foot has a middle portion 24 identical to the portion 13 of the foot 4, below which has two oblique legs 25 and 26 whose lower ends 27 and 28 form two support points distant from each other and located below

  from the front of the seating element as in a regular chair.

  FIG. 7 shows an advantageous embodiment of support provided with the base 3 described above. Immediately above the median zone of crossing of the feet, each lateral foot 5 and 6 has on its front face a prominent rubber buffer 29 enabling to place the chair on a table 30 in the position shown in the figure, the chair resting on the two pads 29 and on the front edge of the seat element I In public or similar establishments, it is common to mount each evening the chairs on the tables to allow the cleaning of the floor With supports as shown in Figure 7, this operation is much less tiring than with a traditional support that must be reversed to put his seat element on the table Here it is enough to translate vertically with a slight tilting forward, which is much less tiring and

clean the furniture.

  FIG. 8 is a view similar to FIG. 1 and shows an example of a two-seater seat composed by assembling two supports according to FIG. 1, connected by means of a horizontal piece of wood 32, the ends of which are placed on the crossed feet of the legs 3 of the chairs -7- and are screwed to the median foot 4 One can thus realize seats to

  several places, formed by a row of chairs.

  FIG. 9 shows an example of a "bar" type stool, consisting of a support and a base in which the angle of cut of the feet has been

  modified to increase the seat height.

  The present invention is not limited to the embodiments given above by way of example. It encompasses any obvious variant.

for the skilled person.

  In particular, the support according to the invention can be used for the realization of all kinds of seats, chairs, tables, stools or pedestal tables.

Claims (6)

claims   A support with a wooden base, comprising a seat element (1) and at least three legs each having an upper end fixed to the seat element and a lower end intended to be placed on a floor, characterized in that the feet (4, 5, 6, 20) are inclined so as to intersect all three in a central zone where they are joined together to others by interlocking.   2 Support according to claim 1, characterized in that each foot (4, 6) is formed by a substantially straight piece of wood. 3 Support according to claim 2, characterized in that said piece of wood has a rectangular cross section outside said middle zone. 4 Support according to claim 1, characterized in that at least one (20) of the feet has an enlarged or bifurcated shape below said central zone, so as to have two support points (27,28) remote Mon   on the other at its lower end.   5 Support according to claim 1, characterized in that it comprises a median foot (4), disposed in an inclined position in a vertical median plane (8), and two lateral feet (5, 6) arranged in positions   symmetrical with respect to said median plane (8).   6 Support according to claim 5, characterized in that each lateral foot (5, 6) comprises, in its middle part, a notch (16, 17) for its interlocking with the median foot, and in that at least the one of   side feet (5, 6) has a notch (14, 15) for its socket with the other side foot.   7 Support according to claim 6, characterized in that the median foot (4) is arranged to fit on the median parts of the two lateral feet (5, 6) joined to each other, so as to maintain said parts medians assembled.   Support according to claim 7, characterized in that the median foot (4) has a reduced section median portion (13) defined on two opposite sides by two lateral notches (1) having generatrices parallel to a direction d interlocking of the foot, and in that the corresponding cuts (16, 17) of the lateral legs have a shape which   corresponds to said reduced section (13).   9 Support according to claim 8, characterized in that all the   surfaces of said notches (11, 12, 14 to 17) are planar.   Support according to claim 5, characterized in that the lower end (5 ", 6") of each of the lateral legs is at the rear of the support.