FR2467570A1 - GUIDING DEVICE FOR THE SLIDING OF A FURNITURE DRAWER - Google Patents

Abstract

This device, which comprises two pairs of profiled rulers each located in the area of the angle formed between the bottom 3 of the drawer 1 and the part of the respective flank 2 which protrudes from this bottom downwards, each pair comprising an outer ruler 4 and an inner rule 5 between which is provided a cage provided with balls, one of the rules being fixed to the piece of furniture 7 and the other to the drawer 1, is characterized in that the inner rule 5 presents for the balls 10, it on one of its faces two parallel tracks 8, and, on its other face, a track 9 located between the two previous ones.

Description

The present invention relates to a device for

  guide for sliding a furniture drawer, including

  carrying two pairs of profiled rulers each located in the area of the angle formed between the bottom of the drawer and the part of the respective flank which protrudes, from the bottom to the bottom, each pair comprising an external ruler and a

  internal rule between which a multi-purpose cage is provided

  one of the rules being fixed to the body of the piece

  ble, while the other is attached to the drawer.

  We know a guiding device of this type,

  in which on each side of the drawer, on the underside

  dull part of this side which is below the bottom, is fixed an outer profiled rule provided with two superimposed tracks for rollers which are also mounted in tracks that has an inner profile rule. The latter is fixed to the body of the furniture by steel brackets. The load capacity and transverse stability of this device

known guidance are poor.

  The object of the invention is to produce a guide device of the aforementioned type, but shaped in such a way that each pair of profiled rules and the balls that

  these enclose between them present a great sta-

  atility and that the free space between the sides of the drawer and the body of the furniture can be maintained

reduced as possible.

  For this purpose, in the guide device according to 1 '

  invention, the inner ruler on one of its fac-

  these two parallel tracks and on its other

  face, a track located between the two previous

teeth, for balls.

  As the biles are guided precisely in the area of these tracks and that on the other hand the outer profiled rule has guide grooves or tracks for these same balls, there is in the event of solicitation of a pair of rules in the transverse direction, numerous guide faces by which these transverse forces can be transmitted from the drawer to the body of furniture. This large number

  guide faces ensure high stability of the arrangement

  laterally, so that the distance between-

  the sides of the drawer and the furniture body may be weak. In any case, the invention will be well understood from 1 '

  using the following description, with reference to the drawing

  schematic annexed, representing, by way of nonlimiting examples, several embodiments of this device:

  Fig. 1 is a cross-sectional view of a pair

  re of profiled rules of the guide device according to the invention, in which the inner rule is fixed to the body of the furniture, while the outer rule is fixed to the bottom of the drawer;

  Fig. 2 is a cross-sectional view of a va-

  laughing realization of the construction of fig. 1, with a different arrangement of the balls;

  Fig. 3 is a cross-sectional view of a pair of

  re of profiled rules of a guidance device in the-

  the outer ruler is fixed to the body of the furniture and the inner ruler is fixed to the drawer;

  Fig. 4 is a cross-sectional view of another

be an alternative embodiment.

  The drawer 1 has sides 2 and a bottom 3.

  The sides 2 protrude from the bottom 3 downwards and form

  each one at this place with the said bottom an angle in the-

  which is mounted one of the two pairs of profiled rules of the guide device according to the invention. This pair

  rule extends in the longitudinal direction of the drawer.

  In the construction shown in FIG. 1, the pair of profiled rules comprises an external rule 4, which is fixed to the underside of the bottom 3 by screws not shown, and an internal rule 5, which is fixed by a wing 6 of its profile on the body of furniture 7. The wing 6 can extend in the space delimited between the

  side 2 of the drawer and the body of furniture 7. It can

2467570-

  However, extend downwards, as indicated in phantom, and be fixed against the part of the body.

opposite furniture.

  The internal rule 5 has on one of its faces two parallel tracks 8 and on its other face a track 9, parallel to the two preceding ones and

  located directly above the middle of the distance between them.

  These raceways are intended for balls 10 and 11, held in a cage 12. The balls 11 of the raceway 9 have a larger diameter than the balls of the raceways 8. As the raceways 8 and 9 are directly contiguous, the inner rule 5

  has a wavy profile in the area where they are located.

  The outer ruler 4 has a guide groove.

  dage 13 for the balls 1 'and, on its opposite wing, a

  wide track 14 for the two rows of bil-

  the 10 distant from each other. The wide road

  ment 1 / l has a profile on its longitudinal edges

  curvilinear 15, the curvature of which corresponds to that of the bil-

  the 10, so that in these zones the balls 10 are precisely guided and a transmission of forces

  can be done from the ball drawer 10 by the external rule

  4 and these balls to the inner rule 5.

  Track 14 of outer rule 4

  has a flat bottom. In the area of this background the bil-

  the 10 can roll according to their game in the pockets 16

from the cage.

  Figure 2 shows an embodiment in

  which the internal rule 17 presents the route of

  Lement 9 on its upper face and the tracks 8 on its lower face, unlike that described with reference to Figure 1. The outer rule 18 is fixed to the bottom i of the drawer and has a guide groove 13 for receive the balls Il and a wide track

14 to receive the balls 10.

  Internal rule 17 is fixed to the body of the furniture

  7 by a wing 19 of its profile. The geometrical configuration

  plate of the rolling tracks 8, 9, 14 and of the guide groove 13 ′ corresponds to that shown in FIG. 1. In the construction shown in FIG. 3, the internal rule 20 is fixed by a wing 21 of its pro- wire at the bottom edge of side 2 of drawer 1. The screws

  fixing are designated by the reference 22. The rule ex-

  23 is fixed by a wing 24 of its profile to

  furniture body 7. The arrangement of the balls and the

  nation of raceways and guide groove

  correspond to those in figure 1.

  In the embodiment shown in Figure 4, the inner rule 25 is fixed by a wing 26 of its profile to the body of furniture 7. The outer rule 27 is

  fixed by screws 28 to the lower edge of the side 2 of the ti-

  laugh. The arrangement of the balls corresponds to that of the

  construction described with reference to Figure 2.

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Claims (4)

- CLAIMS -   1.- Guide device for the sliding of   a furniture drawer, comprising two pairs of rules   yarns each located in the area of the angle formed between the bottom of the drawer and the part of the respective flank which   goes from bottom to bottom, each pair with a re-   external rule and an internal rule between which is provided a cage provided with balls, one of the rules being   fixed to the cabinet and the other to the drawer, characteristic   in that the inner rule (5,17,20,25) has on one of its faces two parallel tracks (8) and, on its other face, a track (9) located   between the previous ones, for the balls (10,11).   2.- Device according to claim 1, character-   risée in that the balls which are in the intermediate raceway (9) have a larger diameter than the balls (10) which roll in the tracks of the opposite face.   3.- Device according to claim 1 or the re-   vendication 2, characterized in that the internal rule   (5) is fixed to the furniture body (7) and the external rule   re (4) is fixed to the bottom (.3) of the drawer and has a wide track (14), which is not adapted to the contour   bilies (10) only in the area of its longitude- edges.   and has a flat bottom, the other wing of this   ball having a guide groove (13) for the ball or row of balls (11) of the intermediate raceway diary (9).   4.- Device according to any one of the claims   previous cations, characterized in that the guide grooves (8, 9, 8 of the inner rule (5,17,20,25) feel directly contiguous and give the inner rule a wavy profile in this area.