FR2784876A1 - DEVICE FOR CONNECTING INDIVIDUAL CHAIRS BY FORMING A ROW OF CHAIRS - Google Patents

Abstract

Device for connecting individual chairs (1) to form a row of chairs, with connecting legs (2, 3) pivotally mounted laterally below the seating surface (4) of the chair (1), legs cooperating in pairs, one of which constitutes a connecting hook (13) and each time the other constitutes a latching recess (15) for the connecting hook (13). In order to create advantageous construction conditions, it is proposed that one of the two connecting tabs (2, 3) which cooperate has a guide groove (11) provided with an undercut, open on the front side, s' extending in the longitudinal direction of the tab, for the other connecting tab (2), and that the connecting hook (13) is provided on an elastic tab (12) of a connecting tab (3) and s' engages, in the manner of a snap-fit closure, in the snap-fit recess (15) provided in the other connecting tab (2).

Description

The invention relates to a device for connecting individual chairs.

to form a row of chairs,

  with pivoting lugs mounted sideways-

  below the seat surface of the chair, pat-

  your cooperating in pairs, one of which constitutes a connecting hook and each time the other constitutes a recess

  for the connecting hook.

  To connect individual chairs to form

  a row of chairs, it is known to mount by screw-

  wise, on a side frame tube connecting the front feet

  and back of chairs, under the seat surface of the chairs

  ses, mounting jaws for connecting lugs

  in the form of stirrups, which can be passed from one posi-

  resting position, retracted by pivoting below the surface

  seat, in a connection position, deployed by pivot-

  in which they can be hung on the connecting leg of the neighboring chair. For this purpose,

  the metal wire bracket of a connecting tab

  kills a housing eyelet for the angled hook-like end of the metal yoke on the other

  connecting tab, so that after hooking the hook

  chet of connection of a connecting lug in the housing of the other connecting lug, one obtains between neighboring chairs a connection having a rigidity in traction which, in any case, in addition, must be ensured by a latch which is slidably mounted on the connecting tab constituting the eyelet and grasping from below the bent end, engaging in the eyelet, of the kind of a hook, on the other connecting leg, to avoid

  any untimely detachment of the attachment.

  This construction requires for the safety of the engagement-

  by hook an additional provision, specified-

  the lock setting. In addition, an individual chair

  dual can be removed improperly from a row of chai-

  ses, because it is only necessary to open the lock of the hook link by proceeding with a displacement of the lock. In order to be able to connect furniture elements together, it is also known (DE 27 58 442 B2) to insert, on the feet adjacent to the furniture to be connected, connecting lugs having ring-shaped housings intended for the feet of furniture, one leg constituting a housing socket for the other leg. Because the leg-shaped tab portion and the tab can be

  inserted into this socket are provided with through holes

  slopes for at least one safety bolt, legs,

  after plugging into each other, in different

  sliding positions, can be ensured by means of a plug-in element with a safety bolt. Such leg connections are hardly suitable for connecting individual chairs, because the legs of individual chairs can be pulled out

  easily housing in the form of ring pat-

  your. In addition, to ensure the security of the connection, it is necessary to have a plugging member which must make

  subject to separate handling.

  Finally, to connect individual chairs, it is known (DE 28 07 953 A1) to have on one side of the chair a housing groove provided with a draft, extending substantially vertically, and, on the opposite side, a corresponding guide piece in the form of a dovetail, which can be inserted into the housing groove of a neighboring chair. In this known construction, it is disadvantageous that the chairs can be removed without difficulty from the housing grooves of the neighboring chair. In addition, the housing grooves having the dovetail-shaped guide pieces require a chair construction for which these

  parts of the construction can be fixed laterally-

  which leads to limitations, not only from the point of view of application, but also from the point of view of

  view of the possible spacing between two neighboring chairs.

1 I

  The object of the invention is therefore to improve a provision

  sitive of individual chairs to form a row of chairs of the type mentioned at the beginning, so as to obtain a rigid connection resistant to traction between the individual chairs, without having to perform a separate locking by hand. In addition, any improper removal of

  chair, a row of chairs should be prevented.

  The invention solves the problem posed by the fact

  that one of the two connecting lugs which cooperate pre-

  has a guide groove with a

  undercut, open on the front side, extending in the longitudinal direction of the tab, for the other connecting tab, and that the connecting hook is provided on an elastic tongue of a connecting tab and engages , like a snap closure, in the snap-in recess in the other connecting tab.

  Because a tab constitutes a guide groove

  dage provided with an undercut, open frontally, extending in the longitudinal direction of the tab, for the other connecting tab, the connecting tabs which cooperate in pairs are to be inserted one into the other

  others correspondingly until the cro-

  connection link, placed on the elastic tongue of a connection tab, snaps into place

  the snap-in recess of the other connecting tab.

  Thus, the sliding movement of one connecting tab in the groove of the other connecting tab is

  blocked. In addition, due to the guidance of a connecting leg

  sound in the guide groove, provided with a

  be undercut, on the other connecting leg, all remove

  ment of the two connecting lugs of one another is stopped, so that the connection by lugs can only be disengaged when the connecting hook has come out of the latching recess against the force d 'a spring of the tongue carrying it, to be able to extract from one another the two connecting tabs. Since the extraction of the connecting legs from one another conditions an enlargement of the spacing between chairs adjacent to a row of chairs, it is not possible to separate an individual chair from a row of chairs by proceeding to a lateral displacement of all the chairs, at least on one side of the disengaged chair, causing an abuse

  is effectively prevented, in particular by the use of

  chair. Due to the guide length

  relatively large, independent of the lock picking

  with a connection tab of the guide groove of the other connection tab,

  high flexural strength of the row of chairs

  made up of individual chairs using the device

according to the invention.

  As already indicated, in order to separate the hook connection between cooperating connecting lugs, it is necessary to deform by bending the tongue which carries the connecting hook. For this unlocking of the latching connection to be simple, the connection hook may consist of an actuating appendage provided on the elastic tongue and which

  enters through a passage opening, constituting the evi-

  latching, of the connecting tab placed in support. It is only necessary that the actuating appendix

  either pressed in from the side opposite the strip

  elastic lookout, through the opening of the recess

  snap-on, by hand, to obtain separation

locking.

  Although the connecting lugs, in a classi-

  that can be pivotally mounted in jaws

  of journalling, one obtains conditions of cons-

  particularly simple truction if the legs of liai-

  its constitute an open journal eyelet, periphery side, towards the longitudinal direction of the leg, IT ... in order to plug with elastic effect on a frame tube of a chair. In this case, simply press

  the swiveling eyelet open at the trans-

  vertically with respect to the frame tube, thereon, until the branches of the journal eyelet resiliently surround the frame tube. Because

  the opening on the periphery side of the eyelet

  furrow is oriented transversely to

  the longitudinal direction of the tab, we get, badly-

  thanks to the simplicity of the assembly, a fixing offering a rigidity in traction, concerning the legs of the connections, on the frame tubes. If the journal eyelet has a snap-in appendage which is elastically inserted radially, cooperating with snap-in recesses in the frame tube, then it is also possible, in a simple manner, to both fix the rest position, retracted by pivoting, that also by the connection position,

  deployed by pivoting, of the connecting tab.

  The object of the invention is shown by way of example in the drawing. In the drawing: FIG. 1 represents two individual chairs connected by a device according to the invention, belonging to a row of chairs in a schematic partially cut front view, FIG. 2 represents this device in the position of connection of the two connecting legs in a side view partially cut on a larger scale, Figure 3 shows a top view of the device of Figure 2, and Figure 4 shows a section along the line IV-IV

  of Figure 3, on a larger scale.

  According to FIG. 1, two individual chairs 1 are connected, rigidly in traction, by connecting legs 2 and 3, these legs being mounted on an IFI. frame tube 5 below the seating surface 4, the

  tube connecting the front and rear legs 6 of the chair.

  To mount the connecting lugs 2 and 3 on the tubes

  frame 5, the connecting lugs 2 and 3 constitute trans-

  versally with respect to the longitudinal direction of the legs, swiveling eyelets 7, open at the periphery, which are inserted transversely on the frame tubes 5 and surround them with elastic effect by

  their free branches 8, as can be seen in par-

  particular on figure 2. To fix the position of

  rest, retracted by pivoting, on the surfaces of

  seat, for the connection lug 3, which is indicated in phantom in FIG. 1, and the connection position deployed by pivoting, drawn in solid lines, of the connection lugs 2 and 3, one of the branches 8 is provided

  of an elastic snap-in appendix 9

  which cooperates with snap-in recesses 10

  corresponding, arranged in the frame tube 5.

  As is apparent from FIGS. 3 and 4, a connecting tab 3 constitutes a guide groove 11 provided with an undercut open on the front side, extending in

  the longitudinal direction of the legs, provided for the

  be connecting lug 2, a dovetail guide being formed for the connecting lug 2 in FIG. 4. Au

  bottom of the guide groove 11 is hollowed out a lan-

  elastic lookout 12 which carries a connecting hook 13 projecting towards the other connecting tab 2, hook produced in the form of an actuating appendage 14, which cooperates with a latching recess 15 produced in the form of a passage opening in the

  connecting leg 2. If, precisely, the connecting leg

  its 2 is inserted into the guide opening 11 open on the front side of the connecting tab 3, then the end

  primer 15 before the guide tab 2 deflects the lan-

  lies in wait 12 through the actuating appendage 14,

  so that the connecting lug 2 can be inserted

  FFI. in the guide groove 11, until

  the actuating appendage 14 snaps into place

  snap fit 15, as shown in Figures 2 and 4. In this position, the two connecting tabs 2 and 3 are locked together by providing

  tensile and compressive strength and cannot

  also cannot be lifted from each other, due to the dovetail guidance. It turns out that, after having inserted the connecting lugs 2 and 3 into each other, a rigid connection, resistant to traction and compression, is obtained between the individual chairs 1, a connection which cannot then be that if, on the one hand, we have separated the

  lock and that, on the other hand, the chains

  his. To this end, first, the actuating appendage 14 is pressed from the side, opposite the tongue 12, of the connecting tab through the insertion recess until the connecting hook 13 consisting of

  the actuating appendix 14 releases the connecting tab

  sound 2 to exit it from the guide groove 11. It is possible to

  thus have simple building conditions, per-

  putting an advantageous manufacture of the plastic connecting lugs, which is linked to the simplicity of

manipulation.

Claims (4)

  1. Connecting device for individual chairs to form a row of chairs, with connecting legs pivotally mounted laterally below the   seat surface of the chair, legs cooperating with each other   res, one of which constitutes a connecting hook and each time the other constitutes a snap-in recess for the connecting hook, characterized in that one of the two connecting tabs (2, 3) which cooperate has a groove guide (11) with an undercut, open on the front side, extending in the direction   longitudinal of the leg, for the other leg of liai-   sound (2), and by the fact that the connecting hook (13) is provided on an elastic tongue (12) of a connecting tab (3) and engages, in the manner of a snap closure, in the snap-in recess (15) in the other connecting tab (2).   2. Device according to claim 1, character-   laughed at by the fact that the connecting hook (13) is   with an actuating appendage (14) provided on the elastic tongue (12), appendage penetrating into a   passage opening, constituting the recess   stage (15), of the connecting tab (2) in support.   3. Device according to claim 1 or 2, characterized in that the connecting tabs (2, 3) constitute a swiveling eye (7) open at the periphery relative to the longitudinal direction of the tab, for threading with elastic effect on a tube frame (5) of a chair (1).   4. Device according to claim 3, character-   laughed at by the fact that the swiveling eyelet (7) pre-   feels a snap-on appendage (9) that snaps in   radially with elastic effect, cooperating with evi-   latching elements (10) formed in the frame tube (5), to ensure the fixing of the connection position deployed by pivoting, or of the vilr position,   rest retracted by pivoting, of the connecting leg sound (2, 3). rr l -