FR2609382A1 - RETRACTABLE TYPE TABLE - Google Patents

Abstract

The table comprises a frame (1) defining a hollow housing, a platform (3), means (4) for mounting the said platform pivotally about a shaft (5) secured to the said frame (1) and so that the said platform can assume at least two positions, a first position such that it is totally contained within the said hollow housing and a second position such that its plane forms a specific positive angle with the plane of the said frame, spring means (10) for exerting at least one force so as to bring the said platform (3) from the first position to the second position, controllable means (11) for holding the said platform when it is in the said first position, and controllable means (12) for holding the said platform when it is in the said second position. The said spring means (10) comprise at least one pressure cylinder (20) comprising at least one cylinder, in order to define a sealed chamber with a variable volume, and a rod (22), integral with the said piston, the said volume chamber being swollen by a compressible fluid.

Description

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RETRACTABLE TYPE TABLE

  The present invention relates to retractable type tables such as

  those used in small spaces.

  Modern life often requires the use of the least voluminous spaces.

  possible, in the interest of cost-effectiveness and minimizing the cost of maintenance. This is the case, for example, kitchens, rooms, balconies, restaurants, garages, but also clinics, hospitals, caravans,

boats and hotels.

  In order to meet the two antinomic conditions which are the lack of space and the need for having sufficient surface tables, retractable tables have been made, for example, of the winding type.

  as a rolling shutter is tilting. However, none of the

  has resulted in tables with large surface trays made from heavy materials such as solid

  example of oak, or covered with tiles.

  Also, the object of the present invention is to propose a table of the retractable type which has a large tray and which

  can move from a retracted position to an exited position, and reciprocally

  without great physical effort, the maneuver

to be ordered automatically.

  More specifically, the present invention relates to a table of the retractable type characterized in that it comprises - a frame defining a hollow housing, - a tray,

  means for mounting said pivoting plate about a solid axis

  of said frame and that said plate can take at least two positions, a first position such that it is completely comprised in said hollow recess, and a second position such that its plane makes with that of said frame a non-zero angle determined, - spring means for exerting at least one force so as to bring said plate from the first position to the second, - controllable means for holding said plate when it is in said first position, and

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  controllable means for maintaining said plateau when it is

in said second position.

  Other features and advantages of the present invention appear

  in the following description given next to the drawings

  appended, for illustrative but not limited to, in which: Figures 1 and 2 show, seen from the side and partially in section referenced AA in Figures 3 and 4, an embodiment of the table according to the invention, respectively in the position of the extended plate and in the position of the retracted plate, and - Figures 3 and 4 show, in two front views, the table according to Figures 1 and 2, respectively in the position of the plate taken out and

  in the position of the retracted tray.

  The four figures representing the same embodiment, the same references designate the same elements, whatever the figures on

which they appear.

  The figures represent a table of the retractable type comprising a frame 1 defining a hollow recess. This frame can be for example

  solid wood for the front and less noble wood for the rear face.

  re. On this frame 1 is mounted a plate 3 with means 4 so that said plate can pivot about an axis 5 and take at least two positions: a first position such that it is completely comprised in said recessed housing, as shown in FIGS. 2 and 4, and a second position such that its plane matches with that of said frame a non-zero angle

  determined, as shown in Figures 1 and 3.

  The table comprises springs 10 for exerting at least one force so as to bring the plate from the first position to the second. It also includes controllable means 11 for holding the tray when

  he is in the first position, and means controllable for the maintenance

  nir when he is in the second position.

  The means 4 for mounting the plate 3 pivoting about an axis 5 are advantageously constituted by at least two hinges 23, 24 with two hinges, each hinge being respectively fixed on the plate and on the frame 1, so that the axis rotation is located on the sides 25, 2627, 28,

  respectively of the frame and the tray.

  The spring means 10 comprise at least one pneumatic cylinder

  with at least one cylinder to define a volume chamber

  variable tight, a rod 22 secured to the piston, the variable volume chamber

  ble being inflated by a compressible fluid.

  Advantageously, the table comprises three jacks 20 whose two ends

  30, 31-32, 33-34, 35 are respectively fixed to the frame 1 and

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  on the plate 3, in planes perpendicular to the axis of rotation 5 of the plate 3 with respect to said frame 1. These three jacks 20 are regularly spaced so that two jacks are substantially close to the two ends 41, 42 of the plate 3 and that the third cylinder is between the other two, substantially in the middle, the two end cylinders having their point of attachment 31, 33 on the plate 3 at a distance from the axis of rotation 5 smaller than that separating the point fixing 35 of the third cylinder of the axis of rotation 5, while the attachment points 30, 32 of the two cylinders

  ends of the frame 1 are at a greater distance than the one separated

  the fixing point 34 of the third jack on the frame 1 with respect to

the axis of rotation 5.

  The controllable means 11 for holding the plate when it is in the first position, as represented in FIGS. 2 and 4, comprise a lock 50 with a bolt 51 and a counter-bolt 52 integral respectively with the plate 3 and the frame 1, these two elements being mounted so that, when the plate is in the first position, the bolt of the lock comes into abutment on the counter-bolt to prevent rotation of the plate 3 to the second position, shown in Figures 1 and 3, and means 53 for

  control the bolt of said lock.

  The table comprises means 54 for controlling the erasure of the

  against-bolt 52, these means can be of any type including a counter-

  screw for blocking and unlocking the counter-bolt by means for example of a screwdriver. These means are necessary when the control means 53 of the bolt 51 are accidentally non-operational either by failure, or when they are of the electronic, optoelectronic or magnetic type, when the

energy source is cut off.

  As mentioned above, the table includes controllable means

  12 to hold the plate 3 when it is in the second position,

  FIGS. 1 and 3. These means advantageously comprise an arm 60, a rotation shaft 61 pivotally mounted on the frame 1, this arm 60 being fastened integrally to the shaft 61 so that, when the plate is in the first position , the arm is in a first position between the plate and the frame, and that when the plate is in the second position, the shaft pivots by driving the arm to bring it to a second position under the

  tray and prevent it from rotating to the first position.

  In addition, the table comprises means 62 for holding the arm 60 when it is in the first position, these controllable means being operable when the plate is in said second position. These holding means 63 of the arm 60 are actuated from a certain

  time after the plateau has arrived in its second position.

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  tion, so that the arm 60, when it is in rotation, does not scratch, especially

  by its end, the underside of the plate 3.

  The arm 60 comprises at its end, a lug 63 directed towards the underside of the plate which comprises means 64 for locking and unlocking the lug 63 when the plate 3 and the arm 60 are respectively in their second position.

  position, shown in Figures 1 and 3.

  As mentioned above, the arm 60 is animated by a movement of

  rotation under the effect for example of a torsion spring coupled to the shaft 61.

  This rotation is therefore relatively fast. To avoid, in particular, a violent noise and possibly shocks on a normal stop, the table

  comprises a limit damper 70 for damping the end of rotation.

  arm 60 when it reaches its second position. This end-of-travel damper may consist, for example, of a rotated inclined plane subjected to the action of a pressure spring. These means being known in themselves

  will not be more fully described here.

  The table described above is used as follows

  It is assumed that the table is in its first position as represented

  2 to 4. When it is desired to bring the plate into the horizontal position, shown in FIGS. 1 and 3, the latch 51 is actuated.

  which is erased in front of the counter-bolt 52. Under the action of the cylinders 20 which allo-

  gent, the plate pivots around the axis 5 by means of the hinges 4, until coming to take a position slightly beyond the horizontality. The rotation of the arm 60 is then actuated after a small time constant, under the action of a spring applied to the shaft 61. The end of the rotation of the arm 60 is damped by the damper 70, so that the pin 63 comes to be placed next to the locking-unlocking means 64. It then exerts a slight

  pressing on the plate so that the pin 63 is locked in the means 64.

  The tray is thus positioned and can be used safely without

risk of tipping.

  When we want to replace the tray in the retracted position, we unlock

  than the lug 63 and a slight traction is exerted on the plate for the clearance

  blocking means 64. The arm 60 is then returned to its original position by a thrust, for example manual, until the lug 63 comes to cooperate with the holding means 62 in the housing 2. The plate is then returned to its first position by manual pressure acting against the force of the cylinders, until the bolt 51

  come hang against the counter-bolt 52.

  As mentioned above, the triggering of the bolt 51 can be done in different ways, for example electrically by pressing the button 53. When the automatic trigger does not work for

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  different reasons, one can, nevertheless, obtain the exit of the plateau, at

  means of the control 54 which'permet to retract the counter-bolt 52.

  So we see that with such a retractable table, it is possible to use

  be large trays of all materials, even those with a significant weight, without the users having special efforts to provide, while offering these achievements an aesthetic

  certain allowing them to take place in any place.

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Claims (14)

R E V E N D I C A T IO N S   1. Table retractable type CHARACTERIZED BY THE FACT THAT it comprises: a frame (1) defining a hollow recess, - a plate (3), - means (4) for mounting said pivoting plate about an axis ( 5) integral with said frame (1) and so that said plate can take at least two positions, a first position such that it is completely comprised in said hollow recess, and a second position such that its plane forms with that of said setting a determined non-zero angle, - spring means (10) for exerting at least one force so as to bring said plate (3) from the first position to the second, - controllable means (11) for holding said plate when it is in said first position, and - controllable means (12) for holding said tray when it is in said second position.   2. Table according to claim 1, CHARACTERIZED BY THE FACT THAT said means (4) for mounting said plate (3) pivoting about an axis (5) are constituted by at least two hinges (23, 24) with two hinges, each hinge being respectively fixed on said plate and on said frame (1), so that said axis of rotation is situated on the sides (25, 26 - 27,   28), respectively of said frame and said tray.   3. Table according to claim 2, CHARACTERIZED BY THE FACT THAT   said spring means (10) comprise at least one pneumatic cylinder (20)   tick comprising at least one cylinder for defining a sealed variable volume chamber, and a rod (22) integral with said piston, said chamber   variable volume being inflated by a compressible fluid.   4. Table according to claim 3, CHARACTERIZED BY THE FACT THAT it comprises three cylinders (20) whose two ends (30, 31 - 32, 33 - 34,) are respectively fixed on the frame (1) and on said tray (3), in planes perpendicular to said axis of rotation (5) of the plate (3) by report to said framework (1).   5. Table according to claim 4, CHARACTERIZED BY THE FACT THAT said three cylinders (20) are regularly spaced so that two cylinders are substantially close to the two ends (41, 42) of said plate (3) and the third cylinder is between the other two, substantially in the middle, the two said end cylinders having their point of attachment (31, 33) on said plate (3) at a distance from said axis of rotation (5) smaller than that separating the point of fastening (35) said third cylinder of said axis of rotation (5), while the attachment points (30, 32) of said two cylinders 7 2609382   ends on said frame (1) are at a distance greater than that separating the point of attachment (34) of said third jack to said frame (1)   with respect to said axis of rotation (5).   6. Table according to one of claims 1 to 5, CHARACTERIZED BY THE   FACT THAT said controllable means (11) for holding said plate when it is in said first position comprise a lock (50) with a bolt (51) and a counter-bolt (52) respectively integral with said plate (3) and said frame ( 1), said two elements being mounted so that, when said plate is in the first position, the bolt of the lock comes into abutment on said counter-bolt to prevent the rotation of said   platen (3) to said second position, and means (53) for controlling der said bolt of said lock.   7. Table according to claim 6, CHARACTERIZED BY THE FACT THAT it comprises means (54) for controlling the erasure of said counter-bolt (52).   8. Table according to claim 7, CHARACTERIZED BY THE FACT THAT   said control means of said counter-bolt (52) are of the mechanical type.   9. Table according to one of claims 6 and 7, CHARACTERIZED BY THE   FACT THAT said control means (53) of said bolt (51) of said lock   re (50) are selected from one of the following types, mechanical, electronic, optoelectronic, magnetic.   10. Table according to one of claims 1 to 9, CHARACTERIZED BY THE   FACT THAT said controllable means (12) for holding said plate (3) when in said second position comprises an arm (60), a rotation shaft (61) pivotally mounted on said frame (1), said arm (60) being fixedly secured to said shaft (61) so that, when said plate is in said first position, said arm is in a first position between said plate and said frame, and that when said plate is in said second position, said shaft pivots by driving said arm for   Bring it to a second position under the plateau and prevent it from to the first position.   11. Table according to claim 10, CHARACTERIZED BY THE FACT THAT it comprises controllable means of holding (62) to maintain said   arm (60) when in said first position, said control means   dables operable when said platen is in said second position. 12. Table according to claim 11, CHARACTERIZED BY THE FACT that said means for maintaining said arm (60) are actuated from a certain time constant after the tray has arrived in said second position. 8 2609382   13. Table according to one of claims 10 to 12, CHARACTERIZED BY THE FACT that said arm (60) comprises a lug (63) directed towards the underside of said plate, the underside of said plate having means (64) for locking said lug (63) that can be unlocked when said tray (3) and   said arm (60) are respectively in their so-called second positions.   14. Table according to one of claims 10 to 13, CHARACTERIZED BY   THE FACT THAT it comprises means (70) for damping the end of the rotation   said arm (60) when it reaches said second position.