FR2691342A1 - Folding table. - Google Patents

Abstract

Folding table, which comprises a top and a foldable articulated base consisting of two U-shaped legs, characterized: - in that each connecting portion of the leg has at least one U-shaped jumper (21), fixed to the portion of connection; - And in that the articulation and clipping means fixed on the lower face (4) of the plate in alignment with the jumper, comprises:. the deformable spring blade (30), fixed to a branch (21, 22) of the rider,. a yoke, the section of which follows an oblong shape, in which the connecting portion of the U-shaped leg slides between the two ends (41, 42), the end (41) of this oblong shape disposed closest to the blade of spring (30) having a lug (43) intended to block the connection portion (11) when the U-shaped leg is unfolded, while the opposite end (42) is intended to receive this connection portion when the leg is folded back , the top of the yoke also having a transverse slot to allow passage of the connecting portion (23).

Description

FOLDING TABLE.

  The invention relates to an improved folding table, of the type comprising a tray and a base hinged to the tray and foldable against it This type of table is widely used for outdoor (garden, camping) or as a side table so, it is not

  useful to describe it here in detail.

  In a first most widespread embodiment, the tray is made of agglomerated material: fibers / resin, and the tubular base, uses compasses to be unfolded and then held in an open position. negligible pinching during unfolding, which remains a complex operation In addition, this type of table also has the risk of inadvertent folding if the compasses are poorly locked. It has recently been proposed to make the plate by molding plastic material However, the compass base still has the

  same disadvantages as above.

  In document US Pat. No. 2,690,368, a table was proposed whose base consists of four elementary feet arranged in each corner. Each foot is articulated and snap-fastened against the underside of the tray by means of a blade of This solution, although very old, has never been marketed, probably because of the instability and insecurity of the locking

open position.

  In US-A-2,875,972, it has been proposed to articulate the U-shaped base by providing the connecting portion of this crank-shaped U-shaped leg, cooperating with leaf springs sliding along the This solution is still mechanically difficult and expensive to produce and delicate to maneuver. The invention overcomes these disadvantages It aims a folding table of the type in question that is economical to manufacture, easy to unfold and fold, even by children, and which does not present the risks of

pinch mentioned above.

  The invention also relates to a folding table of the type in question which can be entirely made of plastic material injected by molding, which allows to achieve attractive manufacturing costs and

  to obtain easy-care products.

  This folding table, which includes a tray and an articulated base foldable against the tray, in which the base consists of two U-shaped legs, the horizontal portion of which

  connection of the two branches is fixed and is articulated on the face-

  lower of the plate, and wherein each leg is clipable in the open position substantially orthogonal to the plane of the plate, and wherein the hinge and clipping means which is fixed on the lower face of the plate, comprises a leaf spring fixed to the plate lower, is characterized in that each connecting portion of the leg, has at least one U-shaped jumper disposed in the plane of the leg, attached to the connecting portion by the ends of the legs of the rider; and in that the articulation and clipping means, fixed on the lower face of the plate in alignment with the rider, comprises: the deformable leaf spring, the other end of which is fixed to the connecting portion of the two branches of the U-shaped rider, a yoke, also fixed to the underside of the plate and aligned with the blade, the section of which has an oblong shape, in which the connecting portion of the U-shaped leg, which height is substantially greater than the diameter of this U-shaped connection portion, the end of this oblong shape disposed closest to the leaf spring having a lug for locking the connecting portion when the U-shaped leg is unfolded, while the opposite end is intended to receive this connecting portion when the leg is folded against the plate, the top of the yoke further having a transverse slot di sposée on a circular arc whose radius corresponds to the length of the leaf spring to allow, during the deployment of the U-shaped leg, the passage of the connecting portion of the rider attached to the end of the blade, when the portion connecting the U-shaped jamb

  goes from one end to the other of the oblong light.

  Advantageously, in practice: the deformable leaf spring and the yoke characteristics are molded plastic; each leg U has two symmetrical hinge and clipping means, each cooperating with a jumper disposed on the connecting portion of the leg; the deformable leaf spring is fixed to the plate by clipping into a reinforcement rib of the underside of the plate; the other end of the deformable leaf spring is clipped on the connecting portion of the U-shaped rider; the hinge clevis has two sections disposed on either side of the leg passage slot, namely: a first portion disposed in the vicinity of one of the two arms of the rider and furthest from the blade; a second portion closest to the blade formed of two sections intended to form the end presenting

  the lug, arranged on both sides of the blade.

  The way in which the invention can be realized and the advantages which result therefrom will emerge more clearly from the following example of embodiment.

the support of the annexed figures.

  Figure 1 is a schematic diagrammatic representation of a

  table with U-shaped base according to the invention, shown in bottom view at the

figure 2.

  Figure 3 is a front view of a characteristic jamb of the invention.

  Figure 4 is a summary perspective representation of

  articulation and clipping means characteristic of the invention, also shown in view from above in FIG. 5, from the side to FIG. 6 (folded position),

  in the open position in Figure 7 (unfolded position).

  Figure 8 is a summary representation of a form

  particular execution of the tray.

  Referring to the figures, the table according to the invention essentially comprises a plate (1), for example molded plastic, and two U-shaped legs designated by the reference (2) and (3), articulated and foldable

  (see Figure 2) against the underside or underside of the tray (4).

  Each base (2, 3) is formed of a U-shaped leg comprising two branches (5, 6) and (7, 8) terminated by appropriate end pieces (9, 10). Each pair of branches (5, 6) is connected by a horizontal connecting portion respectively (11,12), fixed and articulated on the lower face (4) of the plate (1), to be clipped in the open position

  substantially orthogonal to the plane of the plate (1).

  References (70) and (71) designate reinforcement ribs

lower face (4) of the tray.

  The hinge and clipping means characteristic of the invention

  is shown in detail in Figures 2 to 7.

  According to a first characteristic of the invention, each leg (2,3) forming a base comprises, on the connecting portion (11,12), two U-shaped jumpers respectively (15,16,17,18), represented in FIG. 2, arranged in the plane of each leg (2,3) and inside the U, fixed to the connecting portion (11) or (12) by the ends (20) of the branches (21,22) linked between they by another connecting portion

(23).

  According to another characteristic of the invention, the clipping means comprises a deformable spring blade (30) (bendable) directly injected, one end (31) has two flexible forks (32,33) for securing by clipping in ribs (34,35) integrally molded to reinforce the plate (1). In this way, the blade (30) arranged in alignment with the rider (15) is firmly fixed to the lower face (4) of the plate (1). ) The other end (36) of the blade (30) takes the form of a U-shaped groove for receiving by clipping the connecting portion (23) of the jumper (15) (see FIGS. 4 to 6). the U-shaped jumper (15-18) is firmly clipped to the end (36) of the blade of

  spring (30) which can deform by bending.

  According to another characteristic of the invention, the hinge means also comprises a yoke, designated by the general reference (40), located at the lower face (4) of the plate (1) and aligned with the blade (30). the transverse plane, this yoke has an oblong shape, to allow the sliding of the connecting portion (11) between these two ends, respectively (41) and (42) The height H of this oblong section (40) is slightly greater than diameter D of the connecting portion (11) to allow sliding The end (41) of the oblong shape (40) disposed closest to the leaf spring (30) has a pin (43) integrally molded, for blocking the connecting portion (11) when the U-leg (2) is unfolded to hold it in this position by locking against the walls respectively (44) and (45) In the practical embodiment shown in FIG. 4, this end of clipping (41) is formed of two portions, respectively (41) and (41 '), disposed on either side of the blade (30), to enable the

  passage and the bending of it when unfolding.

  According to another characteristic of the invention, the yoke (40) has on the top a transverse slot (50) disposed on an arc of a circle whose radius corresponds to the length of the leaf spring (30) mounted at its fixed point (31), to allow the passage of the portion of

  connection (23) of the jumper (15) during the deployment of the jamb.

  The two opposite lips (51,52) of the slot (50) are inclined outwards, for example of the order of 15 degrees, to facilitate the passage of

  (23) when unfolding (see Figure 7).

  In the folded position (FIG. 6), the connecting portion (11) is

  folded against the end (42) where it just comes to lodge.

  Most commonly, when the legs are folded, the blade

(30) is slightly curved.

  In a practical embodiment, the plate (1) is formed of two elementary plates (60,61) each having on the side of the notches (62,63) allowing on the one hand, to attach them by a common face (64). ) thereby defining an opening (65) adapted to receive the end (66) of a parasol mast (67). The table according to the invention is easy to manufacture, since it can be made entirely of plastic, easy to store and handle,

  even by children and this without risk of pinching.

  It can therefore be used successfully for all applications

known folding tables.

Claims (5)

  1 / Folding table, which comprises a plate and an articulated base foldable against the plate (1), in which the base consists of two U-shaped legs (2, 3), the horizontal portion of which connects the two branches ( 5.6, 7.8) is fixed and is articulated on the lower face of the plate (1), and in which each base (2, 3) is clipped in the open position substantially orthogonal to the plane of the plate (1), and in which articulation and clipping means which is fixed on the lower face (14) of the plate, comprises a leaf spring fixed on the lower face (4), characterized in that each connecting portion (11,12) jamb, has at least one U-shaped jumper (15,16) arranged in the plane of the jamb (2,3), fixed to the connecting portion (11,12) by the ends of the legs (5,6) of the jumper (15,16); and in that the articulation and clipping means fixed on the lower face (4) of the plate (1) in alignment with the rider (15, 16), comprises: the deformable spring blade (30), of which another end (36) is fixed to the connecting portion (23) of the two branches (21,22) of the U-shaped rider (15,16), a yoke (40), also fixed to the lower face (4) of the plate (1) and aligned with the blade (30), whose section matches an oblong shape, in which slides between the two ends (41,42) the connecting portion (11) of the jamb (2) U, section whose height is substantially greater than the diameter of this U-shaped connecting portion (11), the end (41) of this oblong shape disposed closest to the leaf spring (30) having a lug (43) for blocking the connecting portion (11) when the U-shaped leg (2) is unfolded, while the opposite end (42) is intended to receive this p connection orion (11) when the -jambage is folded against the plate (1,4), the top of the yoke further having a transverse slot (50) disposed on an arc of a circle whose radius corresponds to the length of the spring blade (30) to allow, during the deployment of the U-shaped leg (2), the passage of the connecting portion (23) of the jumper (15) fixed to the end (36) of the blade (30), when the connecting portion (11) of the U-shaped leg (2) passes   from one end to the other of the oblong light.   2 / folding table according to claim 1, characterized in that the deformable leaf spring (30) and the yoke (40) characteristics are in molded plastic material.   3 / folding table according to claim 1, characterized in that each leg U (2,3) has two hinge means (30) and clipping (40) symmetrical, each cooperating with a rider (15,16)   disposed on the connecting portion (11,12) of the jamb.   4 / folding table according to claim 1, characterized in that the deformable leaf spring (30) is fixed to the plate by clipping in a   reinforcing rib of the lower face of the plate (4).   Folding table according to claim 1, characterized in that the other end (36) of the deformable leaf spring (30) is clipped onto   the connecting portion (23) of the U-shaped jumper (15). 1 1 2691342   6 / folding table according to claim 1, characterized in that the hinge clevis (40) has two sections disposed on either side of the passage slot (50) of the jamb, namely: a first portion (40); ) disposed adjacent one of the two arms of the rider and furthest from the blade (30); a second portion closest to the blade (30) formed of two sections (41, 42 ') intended to form the end having the lug (43), arranged on either side of the blade ( 30).