EP0695523B1 - Device for the fastening of a drawer slide - Google Patents

Description

The invention relates to a device according to the preamble of claim 1 for releasable attachment of Drawer slide drawer slide on a drawer.

Devices of this type are usually used in the front End area of the drawer and usually behind a front panel of the Drawer mounted on the shop floor. They make it possible to work together with a the rear end of the shop rail with the Charging connecting bracket that acts as a snap bracket or as a hook engaging in an opening in the shop floor The loading rail can be designed to completely remove the drawer To separate the drawer rail and thus the entire pull-out guide, so that the drawer can be taken out for itself and also pull-out guides can be used, in which the Rails and the mutual guides are not easy can be separated. It becomes possible to have the pull-out guide to be permanently installed in the body and only then the drawer or

Mount shop. Devices of the kind are preferably mirror-symmetrical for the left and right side of the shop. A corresponding Device is known from DE-U 92 04 845. It deals this known device is a multi-part   Construction in which on a mostly made of sheet metal Base plate a guide housing for the locking hook, guides for the setting wedge and the necessary openings for retaining screws be attached. The swivel hook is separate vertical axes on the base plate or in the guide housing stored and supported with its free end in the guide housing. This is necessary because of the swivel axis of the hook at a transverse distance from the one to be fastened Shop rail must be attached so that a train on the Load torque generated by the hook around the swivel axis and there is a risk that the hook will disengage jumps out with the rail. The hook is also a usually made of plastic, separate spring in the Locked position pressed, the to release the hook serving handle also has its own, separately stored Component forms. The setting wedge can by means of a Phillips screwdriver engaging a rack of its guide be adjusted. The mounting position of the setting wedge to the base plate is not exactly defined, which means that the adjusting wedge is reset for the mounting of the rail and then adjusted as needed, only for Intervention between shop floor and rail due to the wedge effect is held. Each time you remove the drawer from the same re-adjustment is necessary for the drawer slide, but what difficulties for the untrained user bumps. Because of the multi-part design, there is a elaborate manufacture of the device and with every assembly various adjustment work must be carried out before the hooking of the shop rail and the adjustment at all can be carried out.

A device is known from DE-U 93 00 260, at the the base plate with the locking hook, the handle for the Snap hook and with the adjusting wedge as a one-piece fitting is made of plastic. On the one hand, the   Locking hook and the handle and on the other hand also the adjusting wedge together with the base plate via elastically flexible webs, the locking hook with its webs and the adjusting wedge in Rail longitudinal direction can be arranged one behind the other and the drawer rail on one of the base plates and laterally the fastening flange protruding beyond the hook arrangement the base plate for the front plate of the drawer strikes. The latch hook engages near the one mentioned Flange into the catch of the drawer rail. Accordingly is at a greater distance from the front panel and from the locking hook provided the wedge arrangement, the Wedge around its support bars from the same side like the locking hook swiveling between the shop floor and the rail is impressible. To secure the adjusting wedge in different Intervention positions can be formed on it locking projections be with their own retaining projections on a high Interact part of the base plate. In practice the device described is disadvantageous in many respects. First of all, to actuate the locking hook on the protruding Part of the wedge and its holder over can be accessed, causing an unwanted setting wedge actuation is coming. The insertion of the setting wedge from the On the side, an undesired bending load on the Shop rail with the risk that the locking hook from his Counter detent pops out and the wedge load acts essentially only at a linear contact point. It is not possible to lock the hook with the rail alone to solve, remove the drawer and reattach it later, but before this hooking process, the adjusting wedge reset from the possible engagement position with the rails, then the latch is made and finally adjustment of the drawer by sliding it in from the side the wedge be made, which already Disadvantages mentioned occur and also considerable here Difficulties arise for the untrained user.  

The object of the invention is to create a device of the type mentioned above, which are simply manufactured can, is reliable, for the assembly with Except for those necessary for any height adjustment Wedge adjustment no additional adjustment work necessary and a selected wedge setting even when taking off the drawer can be preserved, but none thanks to the wedge undesirable bending or torsional forces on the shop rail be exercised.

The object is achieved by the features of claim 1 solved.

The invention provides a one-piece fitting created that at fixed wedge on the drawer can, if necessary in the longitudinal direction of the rail adjustable and therefore no lateral deflection forces the rail wedge is used, the Adjustment even after the drawer has been removed from the pull-out guide is preserved, so that the newly assembled drawer again is set correctly. Once the form is there, the fitting can be produced in large quantities under low Effort.

Through a special shape can be achieved that a jumping out of the locking hook from the locking with the Loading rail is prevented safely when tensile forces or Shocks to the drawer occur. A corresponding embodiment is specified in claim 2.

Because locking hooks and a web along or in extension are guided on the outside of the shop rail due to a tensile force acting in the longitudinal direction of the rail Torque on the hook so that it is securely in the recess   the rail is held and out of the latch can only be solved using the handle. This triggering when pressed on the handle is due to the special arrangement the handle and the flexible holding bars favored.

In order to prevent and also guarantee contamination, that when the device is installed underfloor on the drawer, where the device is not visible and essentially only after the feeling is worked, is tried that Connection of drawer and rail by attacking the hook to solve itself can be proceeded according to claim 3.

An advantageous further development according to claim 4 is guaranteed not only a perfect function of the adjusting wedge, but also has the decisive advantage that the contours of the setting wedge with comparatively simple Means can be formed, the adjusting wedge e.g. initially within a non-stop, continuous Opening of the base plate lies and only for use in guided the previously formed guides of the base plate becomes. The wedge is up to the breaking of the predetermined breaking points nevertheless loss-proof and in the right position with the Base plate and the rest of the device connected.

The production can still be done by shaping simplify according to claim 5. Since the setting wedge only at fully assembled device is separated, then forms the floor or wall of the drawer on which the base plate is mounted, the main guide and the base plate one Opposing guide for the setting wedge, which is also at his Intervention under the shop rail is additionally clamped.

A refined construction according to claim 6 gives one Forced operation, in which the mechanic after loosening the adjusting wedge   only on the drawer adjustment necessary to adjust the wedge, a forward and Resetting the wedge is easily possible, the wedge but is secured by latching in every adjustment position.

In a further development according to claim 7, the wedge the further the wedge between Shop floor and rail penetrates so that the ramp wedge always at the height of the end area of it intercepted rail is set. In all cases it is not necessary that the drawer rail to the front panel the drawer is enough.

Fig. 1

eine erfindungsgemäße Vorrichtung in Unteransicht gemeinsam mit einem Ende einer Ladenschiene und

Fig. 2

in der Fig. 1 entsprechenden Darstellungsweise eine Stellung bei teilweise ausgeschobenem Stellkeil.

The subject matter of the invention is illustrated in the drawing, for example. Show it

Fig. 1

a device according to the invention in bottom view together with one end of a shop rail and

Fig. 2

1 a position with the adjusting wedge partially pushed out.

The device shown is as a one-piece molding 1 in a spraying process made of appropriately elastic plastic produced. The device has a base plate 2 with through openings 3 for screw fastening on Bottom of a drawer. Are on two abutting edges Flanges 4, 5 with further screw holes 6 and 7 for Attachment of the base plate to one down over the Floor protruding side wall and on the front panel of the Provided drawer. In the upper area there is a right angle Cutout 8 for receiving the end 9 of a Drawer slide of a pull-out guide available, this Shop rail 9 e.g. the drawer rail of a single pull-out can be assigned a cabinet rail on the furniture body is, with any guides between the two rails   known type can be provided. It is also a Full extension with drawer slide, middle slide and cabinet slide possible and finally the pull-out rails can be joined together by roles carried by themselves or also by intermediate roller or ball carriages or by in Cages held balls or rollers, where it is not necessary that the rails and other parts the extract are easily detachable from each other. In a side flange 10 of the rail 9 is an opening or recess 11 available, the edge 12 facing the device a Detent forms into which a locking hook 13 of the device 1 intervenes. This locking hook 13 has a thickened Leg 14, which rests on the flange 10 in the latched position and protrudes freely beyond the recess 8. Subsequently on this thickened part and from the base plate 2 separated by horizontal gaps are a flexible web 15 and a thicker handle 16 at an acute angle available, with another on the handle 16 in the Basic shape S-shaped web 17 connects, which, like the web 15, to a standing above the base plate 2 and with this one-piece holding head 15a, 17a leads.

It is not practical to use parts 13-17 in the position shown in Fig. 1 apparent basic shape, but one will choose a version in which the locking hook 13 at Injection process protrudes beyond the recess 8 and at least below Form a parting line next to the edge of the recess 8 is formed, the web 15 also partially over this Recess 8 is bent and the web 17 is less May have curvature. In the situation shown, the Locking hook 13 secured by a stop 18. This Stop 18 is at the end of one against the shop floor open cover 19 available, which in turn from the Base plate 2 is formed and the locking hook at his Pivots by means of the handle 16. The   Side wall 20 of this hood 19 has a handle side a play of movement of the locking hook 13 or the leg 14 opening 21.

In addition to the holding head 15a, 17a, the base plate 2 has one Opening 22 in which an adjusting wedge 23 integrally with the Base plate 2, but with this in predetermined breaking points, not shown is formed contiguously. In height the adjusting wedge 23 is aligned with the base plate 2 Side guides 24, 25 is therefore below the top the edge of the base plate opening intended for him 22. The side guides 24, 25 are against the shop floor and against the recess 8 open. The adjusting wedge 23 has the Front a wedge body 26 to which a middle piece with Connect cam 27 and a rack-like end piece 28. In the end piece 28 there is a recess 29 into which one Guide cam 30 protrudes. There is a wedge at the rear end 31 exempted by a longitudinal incision 32. The Rack 33 is the recess 29 opposite over the length of the part 28 molded and at the end with an elastic Rastfinger 34 equipped. Forms in the front end area the rack 33 in the position shown in FIG. 1 is a diagonal to a semicircular insertion guide 35 for e.g. as Phillips screwdriver trained tool. For the cam 27 there is also a counter wedge surface 36.

The drawer is with the two devices attached to it 1 pushed into the body until the locking hooks 13 in the locking openings 11 are engaged. If now a height adjustment the drawer opposite the pull-out guide 9, 10 is desired becomes a Phillips screwdriver-like tool pressed into the insertion guide 35. This will make the Setting wedge 23 from the predetermined breaking points, not shown detonated and moved to the right in the drawing. If the screwdriver is now turned counterclockwise,   then he pushes the wedge body 26 over the rack 35 from, the cam 27 in cooperation with the Wedge surface 36 ensures that the right side of the Setting wedge 23 is pressed into the guides 25, whereas the cam 27 finally (see FIG. 2) in its guide 24 penetrates. 2, the wedge body 26 was in a possible employment on the rail 9 drawn. He penetrates between drawer bottom and rail 9 and lifts the Drawer to the appropriate extent opposite the rail 9 so that the front panel of the drawer is on the correct Joint width can be adjusted. The extension 34 engages in guide notches 37, so that the adjusting wedge 23 in each Extended position is secured.

When adjusting wedge 23 moves further Overrun wedge 31 over the cam 30 and is thereby from the shop floor bent away so that when adjusting the height the drawer opposite the rail 9 from the to the Shop rail 9 following rail can be achieved.

Claims (7)

1. A device for releasably fixing the drawer rail (9) of an extension mechanism guide to a drawer, comprising a baseplate (2) which is adapted to be mounted on the drawer and on which there are mounted a detent hook (13) intended for engagement in a recess (11) in the rail (9), such recess having a catch (12), and an adjusting wedge (23) which, for fine adjustment of the front panel of the drawer, engages adjustably in the longitudinal direction of the rail between the contact side of the rail (9) and the drawer body, the detent hook (13) springing into the engagement position and being releasable from this engaged position via a handle (33) connected to the said hook, characterised in that the baseplate (2) is made as a one-piece moulding with the detent hook (13), handle (16) and the adjusting wedge (23), in which moulding the detent hook (13) and the handle (16) are connected to the baseplate (2) via elastically flexible webs (15, 17), in that the adjusting wedge (23) is connected to the baseplate via breaking points and in that the baseplate (2) has guides (24, 25) for the adjusting wedge (23), into which guides said adjusting wedge (23), on its movement out of its position connected to the baseplate mounted on the drawer, engages in captive manner by co-acting holders (27) after release of the breaking points.
2. A device according to claim 1, characterised in that the detent hook (13) has a limb (14) which is thickened in the zone of contact with the rail and from which a flexible web (15) extending approximately parallel to the rail (9) in the engaged position leads to a retaining head (15a, 17a) merging into the baseplate, a stiffer handle (16) extends at an acute angle to said web (15) and projects beyond the retaining head at a distance from the handle and is connected to the retaining head (15a, 17a) via another returning, preferably S-shaped, flexible web (17).
3. A device according to claims 1 and 2, characterised in that the detent hook (13) in its possible path of movement engages with clearance beneath a cover or protective hood (19) formed out of the baseplate (2).
4. A device according to any one of claims 1 to 3, characterised in that one longitudinal side (33) of the adjusting wedge (23) is provided with detent projections and recesses in the form of a toothed rack, for engagement of a tool constructed, for example, as a Phillips screwdriver, this side of the adjusting wedge, in its position retained by means of the breaking points, partially covering an insertion guide (35) in the baseplate (2) for the tool, so that on introduction of the tool into said insertion guide the adjusting wedge moves towards the side pointing away from the toothed rack, the breaking points breaking, and can engage by its co-acting holders (27) in the baseplate guides (24, 25) in alignment with it in this offset position.
5. A device according to claim 4, characterised in that the guides in the baseplate (2) are constructed as side edge guides (24, 25) for the adjusting wedge (23), said guides (24, 25) being open towards the baseplate mounting side.
6. A device according to claims 4 and 5, characterised in that a side edge guide (25) of the baseplate (2) is provided for the adjusting wedge (23) on the side pointing away from the toothed rack (33) and a side lug (27) is formed in front of the toothed rack (33) and in the adjusting wedge position retained by the breaking points extends over an entry opening in a side guide (24) of the baseplate (2) and has at the front a wedge surface which on longitudinal movement of the adjusting wedge in the tightening direction guides it, with elastic deformation and with the adjusting wedge being pressed into its side edge guide (25), into the side edge guide (25) previously covered by it.
7. A device according to any one of claims 1 to 6, characterised in that a guide wedge (31) for the extension mechanism guide rail following the drawer rail (9) is exposed via a longitudinal incision (32) in the rear end zone of the adjusting wedge (23) and on the longitudinal movement of the adjusting wedge can be bent up away from the baseplate via a fixed guide lug (30) on the baseplate (2).