EP3860402B1 - Securing device for securing a panel of a drawer to a frame - Google Patents

Description

The present invention relates to a fastening device for fastening a panel of a drawer to a frame according to the preamble of claim 1.

The invention also relates to a method for attaching and a method for releasing a panel of a drawer on or from a frame.

From the DE 20 2010 007 430 U1 a fastening device for fastening the front panel of a drawer to drawer frames is known, in which a multi-part panel support is fastened to the front panel of the drawer.

The panel support can be pushed perpendicular to the front surface of the panel in a frontally open receptacle of a side frame of the drawer.

To fix the panel support in the side frame, one or two wedges are fixed to the panel support so that they can be moved vertically, which are spring-loaded and held on the panel support and when the panel support is pushed into the recess of the side frame, they are pressed into the recesses provided in the side frame and thus the front panel in its hold functional position.

This solution requires a stable, in particular metallic, side frame with a sufficiently large wall thickness in order to be able to absorb the forces that are present.

From the WO 2018/171356 A1 Another fastening device for fastening the front panel of a drawer to drawer frames is known, in which two rotatable catch hooks coupled to one another via a transmission guide rod engage in catch hooks arranged on the panel support in order to fix the panel support on the side frame. By turning a bottom With the catch hooks coupled to one another on the transmission guide rod, the panel support can be decoupled from the side frame.

The object of the present invention is to provide a fastening device for a panel of a drawer, which is characterized by a simple and compact structure and can be arranged inside a side frame.

This object is achieved by a fastening device for fastening a panel of a drawer of a frame with the features of claim 1.

The further object of the present invention is to simplify a method for attaching and detaching a panel to and from a frame.

This object is achieved by a method for attaching a panel to a frame with the features of claim 10 and by a method for releasing a panel from a frame with the features of claim 11.

The fastening device according to the invention for fastening a panel of a drawer to a frame has at least one panel support which can be arranged on the panel and at least one adapter which can be arranged in the frame and to which the panel support can be fixed.

The frame is preferably designed as a hollow chamber frame and has an inner and outer wall which are connected to one another in the upper area.

The adapter has at least two catching devices with a respective first and second wedge slide, with which a respective connecting element arranged on the panel support can be fixed in a mounting position on the adapter.

The fastening device also has an unlocking device for the catching devices, with which the wedge slides can be moved between a fixing position and a release position.

The wedge slides are held on the adapter in a linearly displaceable manner vertically to the panel mounting direction, with the at least one second wedge slide is supported in the release position on the first wedge slide directly or indirectly spring-loaded.

Such a fastening device is characterized on the one hand by its small number of components and allows installation in narrow existing hollow chamber frames.

Advantageous variants of the invention are the subject matter of the dependent claims.

According to an advantageous embodiment variant, the wedge slides are spring-loaded in a fixing position, which on the one hand ensures secure positioning and on the other hand enables installation and removal in a simple manner.

According to a further embodiment variant, a first of the wedge slides is coupled directly or indirectly to the unlocking device and the at least one second wedge slide can also be unlocked as a function of the first wedge slide.

As a result, only a single unlocking device has to be provided, with which the two wedge slides or optionally more than two wedge slides can be unlocked by a type of series connection.

According to a further embodiment variant, the first wedge slide coupled to the unlocking device can be latched in the released position in a released position and released again from this position by a pivoting movement.

This enables the catch devices to be prestressed in the release position, which is particularly advantageous for the process of fastening the panel to the frame.

According to a further embodiment variant, a side wall of the adapter has a latching point, in which a latching element, preferably integrally formed or arranged on the first of the wedge slides, can latch.

As a result, the wedge slides can be locked during the displacement movement into the release position. Additional locking elements to be installed or operated separately are therefore not required.

According to a further embodiment variant, the wedge slides have at least one guide cam or guide bolt which can be guided in a guide groove of at least one side wall of the adapter.

This enables a guided linear movement of the wedge slides in a simple manner.

According to a further preferred embodiment, the guide cam or pin of the first of the wedge slides is designed as a pivot bearing.

This allows the first of the wedge slides to be pivoted slightly out of or into a latching recess in a side wall of the adapter for securely holding the wedge slide in the preloaded release position.

According to a further embodiment variant, the adapter has at least two holding grooves which are open towards the panel carrier and in which the connecting elements, in particular holding bolts or transverse pins, lie in the fixing position.

The adapter preferably has two side walls, with a first of the side walls being fastened to the frame wall or frame base and the second of the side walls, in particular spaced apart, being fastened to the first of the side walls.

This enables a further improved guidance of the wedge slides relative to the adapter, in particular within its side walls.

According to a preferred embodiment variant, the unlocking device is designed as a rack and pinion gear.

This enables the unlocking device to be operated easily with a tool that acts on the side, for example a screwdriver, with which the first of the wedge slides can be moved between the fixing position and the release position by turning the wheel.

The method according to the invention for fastening a panel to a frame with a fastening device described above is characterized by the method steps listed in claim 11.

1. a. Entriegeln eines ersten Verbindungselementes eines Blendeträgers durch Verschieben eines ersten Keilschiebers vertikal zur Zargenlängsrichtung durch Betätigung einer Entriegelungsvorrichtung,
2. b. Entriegeln eines zweiten Verbindungselementes durch Verschieben eines zweiten Keilschiebers vertikal zur Zargenlängsrichtung durch Verschieben des ersten Keilschiebers und
3. c. Abnehmen des Blendenträgers mit der an diesem befestigten Blende vom Adapter in Löserichtung.

The method according to the invention for detaching a panel from a frame with a fastening device as described above is characterized by the following method steps:

1. a. Unlocking a first connecting element of a panel support by moving a first wedge slide vertically to the longitudinal direction of the frame by actuating an unlocking device,
2. b. Unlocking a second connecting element by moving a second wedge slider vertically to the longitudinal direction of the frame by moving the first wedge slider and
3. c. Remove the panel support with the panel attached to it from the adapter in the release direction.

Such a method is characterized by its easy-to-carry-out method steps.

According to a preferred embodiment variant of the release method, the first wedge slide latches at the end of the vertical displacement movement in the unlocking position with the aid of a latching element arranged on the first wedge slide at a latching point of the adapter.

This further simplifies subsequent attachment of the panel to the frame, since the wedge slides are already in the correct position to accommodate the connecting elements.

Fig. 1

eine schematische perspektivische Ansicht eines Schubkastens mit Seitenzargen und einer an den Seitenzargen befestigten Frontblende,

Fig. 2

eine Seitenansicht des in Fig. 1 gezeigten Schubkastens,

Fig. 3

eine Seitenansicht des Blendenträgers mit daran befestigter Frontblende sowie eines Adapters und eines Schubkastenbodens in der montierten Position,

Fig. 4

eine der Fig. 3 entsprechende Darstellung mit abgenommener erster Seitenwand des Adapters zur Darstellung der Keilschieber in der verrasteten Position des Blendenträgers,

Fig. 5

eine der Fig. 4 entsprechende Darstellung mit in der Löseposition positionierten Keilschiebern unmittelbar vor dem Abnehmen des Blendenträgers,

Fig. 6

eine Detailansicht des Rastelements des ersten Keilschiebers, eingerastet in einer Raststelle des Adapters,

Fig. 7

eine Seitenansicht des Adapters und des Blendenträgers mit daran angeordneter Frontblende im voneinander getrennten Zustand und

Fig. 8

eine perspektivische Darstellung des Adapters und des Blendenträgers mit daran angeordnetem Teilstück einer Frontblende.

Exemplary embodiments of the invention are explained in more detail below with reference to the accompanying drawings. Show it:

1

a schematic perspective view of a drawer with side frames and a front panel attached to the side frames,

2

a side view of the in 1 shown drawer,

3

a side view of the panel support with the front panel attached thereto and an adapter and a drawer bottom in the assembled position,

4

one of the 3 Corresponding illustration with the first side wall of the adapter removed to show the wedge slide in the latched position of the screen carrier,

figure 5

one of the 4 Corresponding representation with wedge slides positioned in the release position immediately before removing the panel carrier,

6

a detailed view of the locking element of the first wedge slide, locked in a locking point of the adapter,

7

a side view of the adapter and the panel carrier with the front panel arranged thereon in the separated state and

8

a perspective view of the adapter and the panel support with a portion of a front panel arranged thereon.

In the following description of the figures, terms such as top, bottom, left, right, front, rear, etc. refer exclusively to the exemplary representation and position of the fastening device, panel, frame, panel support, adapter, connecting elements, wedge slide and the like selected in the respective figures. These terms are not to be understood as limiting, i.e. these references can change due to different working positions or the mirror-symmetrical design or the like.

In the figures 1 and 2 the reference numeral 1 designates a drawer as a whole. The drawer 1 has two side frames 4, a rear wall 3 and a front panel 2 fixed to the side frames 4.

The front panel 2 is fixed to the side frames 4 using a fastening device in such a way that the front panel 2 is height-adjustable relative to the side frames 4 in a Z direction and also laterally adjustable in an X direction.

For this purpose, cutouts 41, 42 are provided in the outer wall of the side frame 4 on the side frames 4 immediately behind the front panel 2 covering the side frames 4 to the front, through which a tool for corresponding adjustment devices for height or lateral adjustment are accessible.

Through the lower recess 41 is also in the figures 1 and 2 an unlocking device 66 recognizable.

The unlocking device 66 and preferably also the height adjustment element 73 and the lateral adjustment element 74 are part of a fastening device 10, as illustrated in FIG Figures 3 to 8 is to be described in more detail below and by means of which the front panel 2 can be fixed to a respective side frame 4 of the drawer 1 .

As in the Figures 3 , 4 and 8th shown, the fastening device 10 has a panel support 7 that can be arranged on the panel 2 and an adapter 6 that can be arranged on the frame 4 and to which the panel support 7 can be fixed.

In the embodiment variant shown here, the panel support 7 is designed as a U-shaped piece of sheet metal, on the closed end of which there are openings for the passage of connecting elements such as screws for fixing the panel 2 .

The opposite open end face of the panel support 7 is used to hold the adapter 6, onto which the panel support 7 together with the panel 2 can be pushed during assembly of the panel 2 on the frame 4 of the drawer 1.

The panel support 7 also has two connecting elements such as retaining bolts or cross pins 72, which are accommodated between the spaced-apart side walls 71 of the panel support 7, which are arranged parallel to one another, and are fixed in place, extending in the X-direction, in receiving openings provided for this purpose in the side walls 71 of the panel support 7 .

The adapter 6 has at least one side wall 61 with a mounting foot 618 formed thereon for attachment to the frame 4 . The mounting base 618 preferably extends into a bottom channel of the frame 4, to which a bottom 5 of the drawer 1 can be fixed

In the preferred embodiment variant shown here, the adapter 6 has a second side wall 62 which is fastened to the first side wall 61, for example screwed or riveted.

The shape of the second side wall 62 corresponds to the mirror image of the shape of the first side wall 61 of the adapter 6, except for the absence of the mounting foot 618.

It is also conceivable to form the adapter 6 with only one side wall.

Arranged between the side walls 61, 62 of the adapter 6 are two catch devices with a respective wedge slide 63, 64, with which a respective connecting element 72 arranged on the panel support 7 can be fixed in a mounting position on the adapter 6.

Depending on the height of the screen support, it is also conceivable to provide more than two connecting elements 72 on the screen support 7 and a number of catch devices corresponding to the number of connecting elements 72 with respective wedge slides 63, 64.

4 shows the adapter 6 with the front side wall 61 omitted to show the arrangement of the wedge slides 63, 64 and their shape.

Each of the side walls 61, 62 of the adapter 6 has two retaining grooves 611, 612, 621, 622, in which the connecting element 72 of the panel support 7 lies in the assembly position of the adapter 6 and the panel support 7. The fixing position of the connecting elements 72 in the retaining grooves 611, 612, 621, 622 is in 4 shown.

As in 4 It can also be seen that the wedge slides 63, 64 are coupled to an unlocking device 66 for the catch device, with which the wedge slides 63, 64 can be moved between the in 4 fixing position shown and one in figure 5 shown release position are movable.

The wedge slides 63, 64 are held on the adapter 6 in a linearly displaceable manner. For this purpose, each of the wedge slides 63, 64 has at least one guide cam 636, 646, which is guided in a respective guide groove 613, 614, 623, 624 of the side walls 61, 62 of the adapter.

The guide grooves 613, 614, 623, 624 are designed as elongated holes that extend in the Z direction.

To move the wedge slides 63, 64 from the fixing position to the release position, the unlocking device 66 can be actuated from the outside of a frame 4 with a tool, for example a screwdriver.

The unlocking device 66 has a gearwheel which is arranged on the side walls 61, 62 of the adapter 6 so as to be rotatable about an axis of rotation oriented perpendicular to the surfaces of the side walls 61, 62.

The gear wheel engages with its teeth in a drive edge 631, designed here as a toothed rack, of the first wedge slide 63 and, by turning the gear wheel, counterclockwise in the exemplary embodiment shown, causes the first wedge slide 63 to be displaced in the direction of the release position of the wedge slides 63, 64. in the embodiment shown here in the Z-direction upwards.

As in the figures 4 and 5 It can also be seen that the first wedge slide 63 has a guide bar 634, which touches a lower edge of the second wedge slide 64 during the upward displacement and moves the second wedge slide 64 with it as the first wedge slide 63 moves further upwards.

In order to keep the two wedge slides 63, 64 in the fixing position without external force being applied, spring elements 65, preferably in the form of helical compression springs, are placed on the guide webs 634, 644, which support the wedge slides 63, 64 on the side walls 61, 62 of the adapter 6 press into the fixed position.

Each of the wedge slides 63, 64 also has a respective fixing groove 622, 632, in which the respective connecting element 72 of the panel support 7 is accommodated in the fixing position and thus prevents the connecting element 72 from moving in the release direction L.

The shifting of wedge slides 63, 64 into the release position, as shown in figure 5 is shown causes the connecting elements 72 to be released for movement in the release direction L, which allows detachment of the panel support 7 from the adapter 6 in the release direction L.

In order to be able to preload the wedge slides 63, 64 in the release position, the first wedge slide 63, which is coupled to the unlocking device 66, can be latched in the release position.

This is how in the Figures 5, 6 and 8th is shown, on a side wall 61 of the adapter 6 there is a latching point 617 in which a latching element 635 arranged on the first wedge slide 63 can be latched. The detent position is in 6 in an enlargement of the in figure 5 shown with VI designated section.

The guide cam 636 of the first wedge slide 63 is preferably designed as a pivot bearing of the first wedge slide 63 so that the latching element 635 of the first wedge slide 63 can latch in this latching point 617 .

As a result, the wedge slide 63 can be pivoted slightly in the direction of the panel carrier 7 after it has been moved into the release position about the guide cam 636 .

The pivoting movement is brought about on the one hand by the force component of the gear wheel coupling between the teeth of the unlocking device 66 and those of the drive edge 631 of the first wedge slide 63 .

At the same time, the wedge slide 63 is guided during its movement from the fixing position to the release position by the contact of the latching element 635 against a wall of a recess in the side wall 61 that extends parallel to the guide grooves 613, 614, so that the wedge slide 63 only engages when it reaches the latching point 617 can pivot in the direction of the panel support 7 in the locking point 617.

With a fastening device 10 configured in this way, it is possible for fastening the panel 2 and the frame 4 to fasten the panel 2 by means of a single attachment movement parallel to the normal in a front surface of the panel 2 .

By placing the panel support 7 on the adapter 6, the panel support 7 together with the panel 2 attached thereto can be pushed onto the adapter 6 counter to the release direction L.

The connecting elements 72 get into the retaining grooves 611, 612, 621, 622 in the front side of the side walls 61, 62 of the adapter 6 facing the panel support 7 until one of the connecting elements 72 touches a control edge 637 of the first wedge slide 63.

By further advancing the panel carrier 7 and thus the connecting element 72 and the associated pivoting movement of the first wedge slide 63 around the guide cam 636 of the first wedge slide 63, the latching element 635 is pushed out of the latching point 617 of the adapter 6.

The spring force of the spring elements 65 then triggers a downward movement of the wedge slides 63, 64 into the fixing position. The wedge slides 63, 64 overlap the connecting elements 72 so that these are fixed in the respective fixing groove 622, 632 of the respective wedge slide 63, 64 and the respective holding groove 611, 612, 621, 622 of the side walls 61, 62 of the adapter 6.

The panel support 7 is thus fixed to the adapter 6 .

When detaching the panel 2 from the frame 4 with such a fastening device 10 , the first connecting element 72 is first unlocked by moving the first wedge slide 63 by actuating the release element 66 .

The second connecting element 72 is then unlocked by moving the second wedge slide 64 . The displacement of the second wedge slide 64 takes place as a result of the continued displacement of the first wedge slide 63.

The panel support 7 can then be removed from the adapter 6 with the panel 2 fastened to it.

In a preferred embodiment variant of the fastening device 10, in which the wedge slides can be latched in the release position, the wedge slides latch at the end of the displacement movement into the unlocking position with the aid of the latching element 635 arranged on the first wedge slide 63 at a latching point 617 of the adapter 6.

Reference List

1

drawer

2

cover

3

back panel

4

frame

41

cutout

42

cutout

5

floor

6

adapter

61

Side wall

611

retaining groove

612

retaining groove

613

guide groove

614

guide groove

615

guide groove

616

recess

617

rest stop

618

mounting foot

62

Side wall

621

retaining groove

622

retaining groove

623

guide groove

624

guide groove

625

guide groove

626

recess

63

wedge slider

631

driving edge

632

fixing groove

633

control edge

634

guide bar

635

locking element

636

guide cam

637

control edge

64

wedge slider

641

contact edge

642

fixing groove

644

guide bar

646

guide cam

65

spring element

66

unlocking device

7

visor carrier

71

Side wall

72

fasteners

73

height adjustment element

74

lateral adjustment element

75

Side wall

10

fastening device

X,Y,Z

Axles

N

normal

L

release direction

Claims (13)

1. A securing device (10) for securing a panel (2) of a drawer (1) on a frame (4), having

   - at least one panel support (7) arranged on the panel (2),

   - at least one adapter (6) arranged in the frame (4), on which the panel support (7) can be secured,

   - wherein the adapter (6) has at least two catching devices having a respective first and at least one second wedge slide (63, 64), using which a respective connecting element (72) arranged on the panel support (7) can be fixed in an installation position on the adapter (6),

   - an unlocking device (66) for the catching devices, using which the wedge slides (63, 64) are movable between a fixing position and a release position,

   characterized in that

   - the wedge slides (63, 64) are held linearly displaceably, in particular essentially vertically to the release direction (L) of the panel, on the adapter (6),

   - wherein the at least one second wedge slide (64) is indirectly or directly supported in a spring-loaded manner in the release position on the first wedge slide.
2. The securing device (10) according to Claim 1, characterized in that a first of the wedge slides (63) is indirectly or directly coupled to the unlocking device (66) and the at least one second wedge slide (64) can also be unlocked depending on the first wedge slide (63).
3. The securing device (10) according to Claim 1 or 2, characterized in that the first of the wedge slides (63, 64) coupled to the unlocking device (66) can be latched in the release position in a release position and can be released from this position again by a pivot movement.
4. The securing device (10) according to Claim 3, characterized in that a lateral wall (61, 62) of the adapter (6) has a catch point (617), in which a catch element (635) formed or arranged on the first of the wedge slides (63, 64) can be latched.
5. The securing device (10) according to claim 4, characterized in that the catch element (635) is formed integrally on the first of the wedge slides (63, 64)
6. The securing device (10) according to any one of the preceding claims, characterized in that the wedge slides (63, 64) have at least one guide cam (636, 646) or pin, which can be guided in a guide groove (613, 614, 615, 623, 624, 625) of at least one lateral wall (61, 62) of the adapter (6).
7. The securing device (10) according to Claim 6, characterized in that the guide cam (636, 646) or pin of the first of the wedge slides (63, 64) is formed as a pivot bearing of the first of the wedge slides (63, 64).
8. The securing device (10) according to any one of the preceding claims, characterized in that the adapter (6) has at least two retaining grooves (611, 612, 621, 622) open toward the panel support (7), in which the connecting elements (72) are inserted in the fixing position.
9. The securing device (10) according to any one of the preceding claims, characterized in that the adapter (6) has two lateral walls (61, 62), wherein a first of the lateral walls (61, 62) is secured on the frame (4) and the second of the lateral walls (61, 62) is secured, in particular spaced apart, on the first of the lateral walls (61, 62).
10. The securing device (10) according to any one of the preceding claims, characterized in that the unlocking device (66) is designed as a toothed rack gearing.
11. A method for securing a panel (2) on a frame (4) using a securing device (10) according to any one of the preceding claims, characterized by the method steps:

    a. placing the panel support (7) on the adapter (6) and displacing the panel support (7) with the panel (2) against the release direction (L) until one of the connecting elements (72) reaches a control edge (637) of the first wedge slide (63),

    b. releasing the wedge slides (63, 64) from their spring pre-tensioned position by pushing the panel support (7) with the panel (2) further against the release direction (L) against the control edge (637) of the first wedge slide (63) from a release position of the first wedge slide (63),

    c. locking the connecting elements (72) by simultaneous vertical displacement of the wedge slides (63, 64) in relation to the frame longitudinal direction (Y) into the fixing position.
12. A method for releasing a panel (2) from a frame (4) using a securing device (10) according to any one of the preceding Claims 1 to 10, characterized by the method steps:

    a. unlocking a first connecting element (72) of a panel support by displacing a first wedge slide (63) vertically in relation to the frame longitudinal direction (Y) by actuating an unlocking device (66),

    b. unlocking a second connecting element (72) by displacing a second wedge slide (64) vertically in relation to the frame longitudinal direction (Y) by displacing the first wedge slide (63), and

    c. removing the panel support (7) with the panel (2) secured thereon from the adapter (6) in the release direction (L).
13. The method according to Claim 12, characterized in that the wedge slides (63, 64) latch on a catch point of the adapter (6) at the end of the displacement movement in the unlocking position with the aid of a catch element arranged on the first wedge slide.

Images