EP1817982A1 - Device for influencing the relative movement of furniture parts, closing automation and drawer guide - Google Patents

Abstract

The device has a coupling device with an attachment unit (11), which is attached to a furniture part. The attachment unit can engage with a fastening bolt that is attached to another furniture part for coupled movement of the furniture parts during the movement process. The attachment unit includes a piece of flat material, which has rounded contact surfaces (19a, 19b), which come in engagement condition to a counter section of the fastening bolt. An independent claim is also included for a drawer guide with a rack rail.

Description

The invention relates to a device for influencing the movement of relatively movable furniture parts according to the preamble of claim 1, an automatic retraction for an automatic retraction of two mutually movable furniture parts and a drawer slide according to the preamble of claim 10.

State of the art

Devices of the aforementioned type are known in various designs.

For example, on furniture parts guides with additional function, for example in the form of a closing unit or automatic retraction known. For the temporary joint movement of mutually movable furniture parts appropriate precautions are taken on the guide. For example, a driving element can be provided on a guide element, which can come in the relative movement of the furniture parts in or out of engagement with a counter section on another guide element.

The cooperating guide elements or the entrainment member and the counter portion should be comparatively space-saving and stable and also make a reliable intervention or separation possible. In the functional state of the movement-influencing device, the parts in question must be comparatively robust, in particular e.g. to be able to master a variety of movement cycles or possibly occurring impact loads easily.

Purpose and advantages of the invention

Object of the present invention is to improve known arrangements for influencing the movement in economic and functional terms on.

This object is solved by the claims 1, 9 and 10.

In the dependent claims advantageous embodiments of the invention are shown.

The invention is initially based on a device for influencing the movement of relatively movable furniture parts, in particular for drawer guides, wherein the furniture parts can move freely in a first movement section and a coupling device for connecting the movable furniture parts for a coupled movement in a second movement section is provided, and wherein the coupling device comprises a furniture part associated with entrainment means which can intervene for a coupled movement of the furniture parts during a movement process on a receiving part associated with the other furniture part. An essential aspect of the invention is that the entrainment means comprise a flat piece of material, the one Has rounded contact surface, which comes in the engaged state at a mating portion of the receiving part to the plant. The use of the flat piece of material allows a comparatively stable or mechanically highly resilient design of the entrainment means. In particular, the life of the device can be increased with this measure, since there is no damage or impairment occurs with the help of the rounded contact surfaces on the mating state in mating counter section, which has not been excluded by the frequent clash of investment sections or accepted must become. By rounding can also be advantageously a secure installation position of the driving means on the mating section also be possible if it comes in rough use, for example, relatively small deviations of the position of the driver or the mating portion of an exact or ideal investment position. Because with the rounded driving means, the contact area can move, for example, to a point at the rounding, which is slightly spaced from the intended contact area. In addition, rounded contact surfaces on a flat piece of material can be set up comparatively easily but also individually if necessary, if necessary by a simple forming process or by a simple processing step of a flat piece of material produced in a basic form.

The entrainment means according to the invention can be used in many different furniture, e.g. in furniture with drawers, doors, swivel, swing or sliding doors, flaps and the like.

It is particularly preferred if the rounded abutment surface is formed on an end face of the flat material piece. The flat piece of material can be readily positioned so that an end face on the flat piece of material for Plant comes to the opposite section. The front side of the flat piece of material can be created particularly easily in a rounded shape. For example, an approximately rectangular flat material can be provided on its narrow sides uncomplicated with rounding. Advantageously, the rounded abutment surfaces are formed on the end face, which is comparatively highly mechanically loadable due to the inherent stability due to the flat shape, in particular stable against, for example, bending of the flat body. In addition, on the flat piece of material, the end faces or including also to be understood edges or end pieces can be processed comparatively easy.

In a particularly preferred embodiment of the subject invention, the contact surface is formed by a bent portion of the flat piece of material. This can be realized in a simple and economical way a rounding on the flat piece of material. In particular, no complicated procedures or tools are necessary for this. It is particularly advantageous that the rounded contact surface is itself formed by areas of the flat material body. In particular, advantageously no additional materials or components have to be attached to the flat piece of material. Particularly suitable are integrally formed driving means or one-piece flat pieces of material.

It is further proposed that the flat piece of material has two opposite bent sides, which realize the contact surfaces. This refinement can be produced in a particularly simple manner, for example, from a rectangular flat piece of material by means of two end bends. In this case, the bends can be designed mirror-inverted to a transverse axis of the flat piece of material. In particular, with each bend each one Enclosed surface for a relative movement of a furniture part in two opposite spatial directions are provided, which is sufficient for example for the use of the entrainment means in a corresponding device in a reciprocating motion of a movable furniture part in the rule. In a flat piece of material, for example, from a sheet with about 1 mm thickness bending is relatively easy to perform, with a certain minimum stability of the bend is easily achieved by the sheet material properties. By bending advantageously a relatively small elastic or resilient behavior of the Umbiegeabschnitte can be realized, for example, shock load during coupling and thus the contact surfaces. With the bends, if necessary, a gentle coupling into the engaged state or a reliable coupling out of this state can be improved.

In a preferred embodiment of the subject invention, the flat piece of material is welded to an attachment point. Since, in the majority of applications, the flat material piece itself and a guide element on which the flat material piece is arranged are made of metal, the attachment by welding is particularly advantageous. In particular, the welding regions are chosen so that the welding can be carried out with relatively low distortion, e.g. by symmetrically mounted around a reference welding points. For example, possibly pre-formed weld contours can be set up for the catch means. In principle, other attachment methods, such as, for example, the soldering, gluing or other low-distortion attachment methods are suitable.

Previously, the welding of elongated or pin-shaped driving means to quality and / or connection problems, since, for example, the welding could only be done over a relatively small cross-sectional area of the pin. Also, in some applications, two pens, necessary, which make a corresponding tolerance sensitivity or high manufacturing accuracy necessary with respect to welding. When using U-pins, for example, these are welded via a flattened or relatively small welding surface in the curved connecting portion of the two U-legs, which is difficult or leads to quality problems during welding, especially if at the edge of guide elements or -. seemed to be welded and side, up or down little space is available.

Furthermore, it is proposed that the flat piece of material is integrally formed on a guide element. By this measure, the production and the device of the entrainment can be effectively realized, for example, can account for a separate attachment of the flat piece of material to the guide element. The guide element may e.g. a drawer, carcass and / or middle rail of a drawer slide. If the guide element consists for example of a flat material, it is conceivable that the flat piece of material is formed such that after a U-shaped incision in the guide element of the cut sheet metal section is bent, for example, approximately at right angles to the planar extension of the sheet material.

In a further preferred embodiment of the subject invention, the flat piece of material consists of a stamped part. This is particularly advantageous with regard to a cost-effective production or exact shaping of the entrainment means, in particular when large quantities are produced.

In a further advantageous embodiment of the invention, the entrainment means are provided with a yielding portion. Thus, the entrainment may possibly with elastic or resilient properties or be provided with impact energy-absorbing means, for example, to intercept load peaks especially when occurring impact loads in the engaged state or when intervening in the receiving means. In particular, the yielding portions may completely form or partially cover the abutment surface. The yielding portions can be formed, for example, as a coating or a relatively soft coating, for example as a rubber, plastic or textile layer or as a further part thereto, for example as a separate component attached thereto.

The invention also relates to an automatic retraction for a retraction movement of two mutually movable furniture parts. The automatic retraction is characterized in that it comprises one of the aforementioned devices. Thus, the above-mentioned advantages for an automatic retraction or an automatic closing unit, in particular for furniture with relatively zueinender movable furniture parts can be realized. In principle, other devices for influencing the movement of mutually movable furniture parts can be provided with the entrainment means according to the invention. Here, for example, so-called touch-latch systems or Abdrückvorrichtungen be mentioned.

In addition, the invention relates to a drawer slide with an attachable to a carcass body rail and attachable to a drawer drawer rail, wherein the drawer guide comprises one of the aforementioned devices. In particular, in drawer guides appropriately designed Mitnehmermittel of a flat piece of material with rounded contact surfaces are advantageous. Often there is a receiving part for receiving the driving means made of plastic, which is justified in particular manufacturing technology in drawer guides. Here is the counter section on which the Mitnehmermittel in Engagement state come to rest, in terms of mechanical stability comparatively more sensitive than made of metal parts. For example, even high resilience plastics can fail to cope with the large number of possible movement cycles of a drawer when they come into contact with non-rounded flat metal tappets, especially when increased impact energy occurs. According to the invention, a material-saving form of the contact surface is formed on the entrainment means, which is almost ideally fulfilled by rounding off. For even flat kink areas can already have a negative effect on the counterpart in the frequency of the contacts.

embodiment

An embodiment of the invention will be explained in more detail with reference to the following figures, indicating further advantages and features.

Figur 1

in perspektivischer schematisierter Ansicht schräg von oben einen Möbelkorpus in dem eine Schublade aufgenommen ist,

Figur 2

eine der in Figur 1 gezeigten Schubladenführungen mit Schließeinheit im ausgefahrenen Zustand,

Figur 3

die in Figur 2 gezeigte Schubladenführung ohne Dämpfer im eingefahrenen Zustand,

Figur 4

eine Detailansicht gemäß des umkreisten Bereichs in Figur 3,

Figur 5

eine Ansicht von oben der Schließeinheit der Schubladenführung gemäß Figur 2 und 3 in geschlossener Position mit einem dazugehörigen Mitnehmer in einer seitlich verschobenen Alleinstellung und

Figur 6

den in Figur 5 gezeigten Mitnehmer in vergrößerter Darstellung.

In detail shows:

FIG. 1

in perspective schematic view obliquely from above a furniture body in which a drawer is received,

FIG. 2

one of the drawer guides shown in Figure 1 with closing unit in the extended state,

FIG. 3

the drawer guide shown in Figure 2 without damper in the retracted state,

FIG. 4

a detailed view according to the circled area in Figure 3,

FIG. 5

a top view of the closing unit of the drawer guide according to Figures 2 and 3 in the closed position with an associated driver in a laterally shifted unique position and

FIG. 6

the driver shown in Figure 5 in an enlarged view.

Figure 1 shows obliquely from above a piece of furniture which comprises a body 1 and a drawer 2 movably guided therein. The arranged in the lower part of the body 1 drawer 2 is shown in the open or withdrawn state, wherein the mutually movable furniture parts 1 and 2 via a pull-out or a drawer slide 3 are mutually displaceable. In the body 1, a further drawer, not shown, can be accommodated in the same way via a further drawer slide 3a. The drawer 2 is movable according to the double arrow P1 relative to the body 2. For holding or guiding the movement of the drawer 2 is in the lower region of both sides of a drawer bottom 2c upwardly projecting drawer 2a each a similar drawer slide 3 and 3a housed, in Figure 1 only on a corpus inside the drawer slide 3 and 3a is apparent.

The extended drawer slide 3 shown in isolation in Figure 2 corresponds to the drawer slide 3 shown in Figure 1. The drawer slide 3 can in principle be configured for example for a full or partial drawer and In the example shown, a carcass rail 4, which can be firmly attached to the carcass 1 via carcass angles 4a, 4b, has a middle rail 5 and a drawer rail 6, the drawer rail 6 being fastened to the drawer 2 in each case in the lower region of the corresponding drawer 2 a. The rails 5 and 6 are guided according to the double arrow P2 to each other or the middle rail 5 to the body rail 4 slidably.

For damping the insertion movement of the drawer 2, the drawer guide 3 comprises a damper 8, which is mounted in a multi-functional part 7 or indirectly connected to the drawer rail 6. The multi-function part 7 forms an end extension of the drawer rail 6 at its front to a front 2b (see Figure 1) of the drawer 2 directed front end. This is for the approach especially to the damper 8, the multifunction part 7 or a closing unit 9, e.g. advantageous for their assembly and disassembly, since the drawer slide can be mounted to the body 1 and these parts are easily accessible when the drawer slide 3 is extended.

In the longitudinal direction of the multi-function part 7, the closing unit 9 or an automatic feed mechanism is mounted on the lower side of the drawer rail 6 on the downstream side. The closing unit 9 comprises a displacer 16 displaceably mounted along the drawer rail 6 at the end remote from the damper 8, a coupler 10 is fastened. When the rails 4, 5, 6 are pushed into one another, the coupler 10 can catch a driver 11 on the rail 4 and, when mounted, in the assembled state move the drawer 2 into its closed position with the aid of e.g. a spring 13 (see Figure 5) or a compression spring.

Instead of the damper 8 and the closing unit 9, other components such as a touch-latch system can be used in a corresponding manner or a Abdrückeinrichtung be mounted. If these parts have, for example, geometries or dimensions such as the damper 8 or the closing unit 9, the same multifunction part 7 or the same drawer rail 6 can be used or an exchange of corresponding parts is readily possible.

The damper 8 and the closing unit 9 can be arranged one behind the other, one below the other, side by side, offset from one another, etc., due to the geometry or the available space.

In Figure 3, the drawer slide 3 without damper 8 with closing unit 9 in a closed position is shown in perspective view from the side in detail.

FIG. 4 shows the section encircled in FIG. 3 enlarged. The driver 11 is in the engaged state or trapped in the coupler 10 of the clamping unit. 9

In the case of the closing unit 9 shown in FIG. 5, the driver 11 is shown outside the coupler 10 for a clearer representation. The closing unit 9 comprises a housing 12, the spring 13, which is connected directly or indirectly, here at the front end of a spacer 14, between the rear end of the housing 12 and the coupler 10. In this case, the coupler 10 is mounted on a pivot receptacle 15 here at the spacer 14 at this pivotally. To the closing unit 9 also includes the spacer 14 and the coupler 10. The spring 13 acts between the rear facing the multifunction part 7 end of the housing 12 and the front directed to the coupler 10 end of the spacer 14. In the illustrated state of Figure 3 and Figure 5 the coupler 10 is pivoted in the direction of the driver 11, wherein the driver 11 is seated in a recess 16 of the coupler 10.

The driver 11 is preferably a sheet metal part, which may be mounted in principle on one of the rails 4, 5 and 6 connected. In the illustrated embodiment, the driver 11 is attached to the carcass rail 4 and the closing unit 9 on another rail, here on the drawer rail 6. The driver 11 is welded to the carcass rail 4 via a contact surface 17 or via welding points 18a, 18b. As can be seen in particular in Figure 6, the integrally formed from sheet metal carrier 11 in its basic form two mutually approximately at right angles bent flat portions 18 and 19. This sheet metal angle design is particularly advantageous for welding at an attachment point. For welding the carrier 11 to the carcass rail 4, the support surface 17 or an underside of the flat portion 18 abuts the carcass rail 4, wherein the actual welding takes place via the welding points 18a, 18b. In the area of the welding points 18a, 18b corresponding depressions or holes are provided in the flat section 18. In the engaged state of the driver 11 in the recess 16 of the coupler 10 (see Figure 4), abutment surfaces 19a and 19b come on flat portion 19 in abutment with stop surfaces 10a, 10b of the recess 16. According to the invention, the stop surfaces 19a, 19b in rounded or outward formed convex shape. This advantageously no edge-forming or kinking area is formed, but curved surfaces, which are realized for example by both sides partially folded frontal end pieces on the flat portion 19. The abutment surfaces 19a, 19b can also be formed by folding over, folding over, flanging or rolling sections of the flat section 19. Optionally, the stop surfaces 19a, 19b may be covered with a layer for a softer or buffered system, for example with a rubber layer. The bending radius of the bent portions on the flat part 19 may be very small or close to 0 degrees or a defined have relatively low bending radius, for example, according to Figure 6.

The distance between the abutment surface 19a and the abutment surface 19b on the driver 11 may be less than or equal to the distance between the abutment surfaces 10a and 10b of the coupler 10, whereby a pinching force of the driver 11 in the recess 16 is determined. In particular, the distance between the abutment surfaces 19a and 19b depends on the coordination between the coupler 10 and the driver 11, which may be necessary in particular for a corresponding tuning to avoid noise when intervening. The driver 11 may have, in addition to the abutment surfaces 19a, 19b, extended turnup ends 19c, 19d, which in particular simplifies the production of the bends. In addition, cuts 19e may be provided in the flat portion 19 in the bending radius for this purpose.

An intermediate piece 20 of the driver 11 may be formed continuously, as shown in Figure 6, but it is also slotted or provided with a release conceivable, wherein the slot or the release be formed approximately in the middle of the intermediate piece 20 or approximately may have a U-shape. As a result, the abutment surfaces 19a, 19b can be bent or inclined relative to one another to slightly adjust the distance between the abutment surface 19a and the abutment surface 19b or, if necessary, to precisely calibrate the abutment surfaces 19a, 19b. This may be advantageous, for example, for the coordination between the coupler 10 and the driver 11.

In order to realize possibly slightly adapted or gently abutting stop surfaces 19a, 19b, for example, a driver without stop surfaces 19a, 19b could be configured, but provided with an additional part (not shown). Such an additional part could be on Driver 11 attached or wound around the driver to be. Or the driver could be processed in this section by a dipping or spraying process, so that rounded stop surfaces are formed.

LIST OF REFERENCE NUMBERS

1

corpus

2

drawer

2a

drawer frame

2 B

front

2c

drawer base

3

drawer guide

3a

drawer guide

4

cabinet member

4a

face angle

4b

face angle

5

middle rail

6

drawer rail

7

Multifunction part

8th

damper

9

closing unit

10

coupler

10a

stop surface

10b

stop surface

11

takeaway

12

casing

13

feather

14

spacer

15

pin receiver

16

recess

17

bearing surface

18

flat section

18a

Verschweißpunkt

18b

Verschweißpunkt

18c

bottom

19

flat section

19a

stop surface

19b

stop surface

19c

turnup end

19d

turnup end

19e

incision

20

connecting piece

Claims (10)

Device for influencing the movement of relatively movable furniture parts (1, 2), in particular for drawer guides (3, 3a), wherein the furniture parts (1, 2) can move freely in a first movement section and a coupling device (9, 11) for connecting the movable furniture parts (1, 2) is provided for a movement coupled together in a second movement section, and wherein the coupling device (9, 11) comprises a driving means associated with a furniture part (11), for a coupled movement of the furniture parts during a movement process a receiving part (10) associated with the other furniture part, characterized in that the entrainment means (11) comprise a piece of flat material having a rounded abutment surface (19a, 19b) in the engaged state at a counter portion (10a, 10b) of the receiving part (10 10) comes to rest. Apparatus according to claim 1, characterized in that the rounded contact surface (19a, 19b) is formed on an end face of the flat material piece. Apparatus according to claim 1 or 2, characterized in that the bearing surface (19a, 19b) is formed by a bent portion of the flat piece of material. Device according to one of the preceding claims, characterized in that the flat piece of material has two opposite bent sides, which realize the abutment surfaces (19a, 19b). Device according to one of the preceding claims, characterized in that the flat piece of material is welded to an attachment point. Device according to one of the preceding claims, characterized in that the flat piece of material is formed integrally on a guide element. Device according to one of the preceding claims, characterized in that the flat piece of material consists of a stamped part. Device according to one of the preceding claims, characterized in that the entrainment means (11) are provided with a yielding portion. Einziehautomatik for a pull-in movement of two mutually movable furniture parts (1, 2), characterized in that the retraction automatic (9) comprises a device according to one of the preceding claims. Drawer guide having a body rail (4) which can be attached to a body (1) and a drawer rail (6) which can be attached to a drawer (2), characterized in that a device according to one of the preceding claims is provided.

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