AT9013U1 - DEVICE FOR OPENING AND CLOSING A MOVABLE FURNITURE PART - Google Patents

Abstract

The invention relates to a device for opening and closing a movable furniture part, in particular a drawer, a furniture door, a flap or the like, wherein the device comprises at least one touch-latch fitting (10) comprising a housing (11) and a pressure plate ( 13) which are movable relative to each other by hand against and by means of the force of at least one spring (15) relative to each other, and which are connected via a crank pawl (16) which is attached to one of the parts (11, 13) and with their free end engages latching in a link (18) on the other of the parts (13, 11) and during the relative movement (30) on the control cam of the link (18) runs such that the two parts (11, 13) to each other in at least one relative position are locked to each other and are moved linearly after manual unlocking in a second relative position by force of the spring (15), and wherein the housing (11) and the Druc kplatte (13) are substantially mutually free of movement linearly to each other on the basis of between housing (11) and pressure plate (13) arranged guides (12, 27; 14, 26; 15, 28, 31).

Description

2 AT 009 013 U1

The invention relates to a device for opening and closing a movable furniture part, in particular a drawer, a furniture door, a flap or the like, according to the preamble of the protection claim 1. 5 Such devices serve the opening and closing of drawers, doors, flaps and any allow other movable furniture parts that have no handle, for example, for aesthetic reasons. Opening and closing such movable furniture parts, for example, by lateral actuation of the front panel or other accessible part, is impractical or not possible because not operable and does not allow safe io operation.

There are fittings for opening drawers are known, which are actuated by the drawer is pressed by a predetermined distance and then extended by a spring mechanism. This function is achieved in a known manner via so-called touch-latch fittings.

DE 198 21014 A1 discloses a device for opening a closure element, wherein a drive unit and a triggering element are provided. DE 100 08 350 A1 discloses a combination of a touch-latch fitting with a damper, wherein the touch-latch fitting is attached to the lower shell of the furniture cover.

EP 1 183 963 A1 discloses an adapter and a drawer with this adapter, which has at least two functional elements by means of which the opening and / or closing operation of the drawer can be influenced.

DE 295 07 917 U1 discloses a spring-loaded locking element, which is a, by means of a arranged on the drawer rail driver, stretcher latch, which is slidably disposed in egg nem flat guide body and guided along a guide track, which has a turning loop.

EP 1 314 842 A1 discloses a device with two triggering and drive units, wherein at least one Verrieglungselement for Verriegiung the furniture part in the closed position and release of the furniture part in response to an external force on at least one trigger element is present and wherein the two Tripping and drive units are synchronously and essentially free of play coupled by way and force-transmitting means with each other. 40 advantage is that you can press anywhere on the front panel to open the drawer, as a large release area is available.

Disadvantage is the complex and cost-intensive construction, and also the large trigger area due to an unintentional triggering. 45

If two independent per se known touch-latch fittings are provided, sometimes only one fitting is triggered, the other not.

The object of the present invention is to further develop a device for opening and closing such a movable furniture part, in particular a drawer, a furniture door, a flap or the like such that a relatively large amount of time is achieved by using the touch-latch fittings known per se predefined release area on the front panel is possible, but may be smaller than the entire front surface of the front panel. 55 A single small touch-latch fitting has too much clearance between the case and the 3 AT 009 013 U1

Control cam element and so a small pressure plate that the triggering area on the front panel is very small.

To achieve the object, the invention is characterized by the features of claim 1 5.

It is essential that the housing and the pressure plate are substantially mutually free of play linearly movable, due to at least one arranged between the housing and pressure plate essentially play-free guidance. 10

The control cam element of the touch-latch fitting is guided directly or indirectly displaceable almost free of play in the housing.

In a preferred embodiment of the present invention, the almost backlash-free guidance is effected indirectly with at least one element separated from the control cam element.

In particular, the control cam element has a widespread pressure plate which is wider than the width of the control cam element. Advantage is the small and inexpensive construction for a reliable effect, since there is only one fitting and no longer two as in the prior art, which are connected via at least one connecting rod or which are arranged independently of each other and thus easy to bring out of tact are. 25 Preferably, the control cam element is guided over its widened pressure plate with the housing via at least one guide pin almost free of play. This brings stability and prevents tilting of the control cam element and thus a malfunction.

Preferably, there are two guide pins which are as far away from each other as possible. The distance between the guide pins has an influence on the triggering area of the front panel. The further the guide pins are positioned away from each other, the larger the triggering area of the drawer becomes.

In another embodiment, it is provided that the control cam element is integrated in a guide pin.

In another embodiment, it is provided that a spring serves as a second guide pin or around the guide pin, or is arranged in the guide pin. 40 It is also possible to build a fitting with a guide pin in the middle, depending on a spring on the left and on the right side and with a cam element whose arrangement is arbitrary.

Therefore, any number of combinations are possible. The number of guide pins and 45 springs is arbitrary, but always a backdrop in a control cam element and a wide pressure plate must be present. For example, the play of the guide pin is +/- 0.05 mm, the pressure plate is 55 mm wide and the stroke (corresponds to the gate travel) is 17 mm. 50

Conceivable for a stable guidance is a ratio of the play of the guide pin to the width of the pressure plate which is lower than 2% (preferably <0.5%) and / or a ratio of the play of the guide pin to the stroke which is lower than 5% (preferably <1%). These values can be defined as desired. 55 4 AT 009 013 U1

The positioning of the touch-latch fitting can be done as follows. The housing is fixed directly or indirectly to the movable furniture part, the pressure plate comes directly or indirectly with the non-movable furniture part in contact. The reversal is possible if the housing also has a widespread surface. 5

There are four useful combinations:

The housing is fixed to the movable furniture part, and the pressure plate is temporarily in contact with the non-movable furniture part. 10

The pressure plate is fixed to the movable furniture part, and the housing temporarily in contact with the non-movable furniture part.

The housing is fixed to the non-movable furniture part, and the pressure plate temporarily in contact 15 with the movable furniture part.

The pressure plate is fixed to the non-movable furniture part, and the housing temporarily in contact with the movable furniture part. 20 The positioning of the touch-latch fitting on the movable furniture part can be done

At the bottom / rear of the drawer bottom at the rear wall (outside side) at the frame or side wall 25 at the drawer rail or middle rail (or other movable part of the guide) at the / in Front panel be made. 30

The positioning of the touch-latch fitting on the non-movable furniture part can at the / in the carcass back wall on / in the carcass rail or connected to the carcass rail stop (main-35 neuter if the movable furniture part is the drawer rail) at the / in the cabinet side wall on a special stop or on a special bar, eg horizontal (possibly several) or vertical (for all drawers) ledge on the back of the carcass; e.g. Bar, which extends between the two cabinet side walls 40 are made.

Combinations that make the most sense are that the touch-latch fitting between drawer bottom and carcass back or between drawer bottom and a separate bar acts 45, or between drawer back and carcass back wall or between the drawer rear wall and the separate bar acts, or between the Drawer side wall or the frame and carcass rear wall or between drawer side wall or the frame and the separate bar acts, or between a movable part of the rail guide and a non-movable part of the rail guide acts, but zwi-50 see the front panel and the separate bar acts ,

The touch-latch fitting may be in the middle, at the edge or in a certain position, i. be mounted everywhere on the furniture part, so that the triggering area is defined or optimized. 55 If the touch-latch fitting is mounted on the edge, the tripping area will be rather small and one-sided. 5 5 5 AT 009 013 U1.

When the touch latch is mounted in the center or slightly off-center, the trip area will be the largest and nearly symmetrical to the touch-latch mount.

The touch-latch fitting can be positioned so that the trip area becomes symmetrical or asymmetrical to the touch-latch fitting.

The touch-latch fitting can be mounted horizontally, vertically or in any position (such as 45 ° rotated), depending on whether the trip area is intended to extend in width or height.

Figures: 15 20 25

Fig. 1: Drawer with carcass and touch-latch fitting in the open position

Fig. 2: Drawer with carcass and touch-latch fitting in the closed position

Fig. 3: Touch latch fitting in the closed position

Fig. 4: Touch latch fitting in depressed position

Fig. 5: Touch latch fitting in the open position

Fig. 6: exploded view of the touch-latch fitting

Fig. 7: Carcass with several drawers in the closed position

Fig. 8: Carcass with several drawers in depressed position

Fig. 9: Carcass with several drawers in the open position

Fig. 10: drawer with body, wherein various positions of the touch-latch hardware were outlined

Fig. 11: Detail view of Fig. 10, wherein a further position of the touch-latch fitting has been outlined

Fig. 1 shows a drawer 1 in a body 6 (shown without body cover). The touch-30 latch fitting 10 is mounted on the body rear wall 7. In another embodiment, the touch-latch fitting 10 is mounted via the mounting device 24 on a ledge 22 (see FIGS. 7-9) connected to the carcass rear wall 7 or the carcass side walls 9 (see FIGS. 3-6). The drawer slide 23 (see FIG. 9) is not shown in FIG. 1 for reasons of simplification.

The drawer 1 is shown half-open, the touch-latch fitting 10 is thereby in its open position. 40

Fig. 2 shows a closed drawer 1 in the body 7, the touch-latch fitting 10 is in contact with the drawer rear wall 5. On the front panel 2, the trip area 25 has been marked marked. In this case, since the touch-latch fitting 10 is mounted in the middle and low in relation to the drawer rear wall 5 on the body rear wall 7, the drawer rear wall 5 bends in the center and deeply on the touch latch 10, and is the trip area 25 on the front panel 2 also rather centrally and deep from the bottom of the lower edge of the front panel 2 to about 2/3 of the height of the front panel. 2

FIGS. 3 to 6 show the touch-latch fitting 10

Fig. 3 shows the closed position. The distance between housing 11 and pressure plate 13 is about 5 mm. This distance corresponds to the pressing path in order to be able to unlock the touch-latch fitting 10. FIG. 4 shows the depressed position, that is, when a user presses on the triggering area 25 to open the drawer 1, the pressure plate 13 is pressed onto the housing 11. The link pawl 16 is unlocked in the gate 18.

Fig. 5 shows the open position. The stroke 32 (distance between pressure plate 13 and housing 11 5 after unlocking the link pawl 16 from the link 18) is about 15 to 20 mm. That after the unlocking of the touch-latch fitting 10, the front panel 2 will be removed from approximately 15 to 20 mm from the front end side of the cabinet side walls 9. This distance is sufficient to open the drawer 1 completely. FIG. 6 shows an exploded view of the touch-latch fitting 10.

The control cam element 12 is guided as a square column in the housing 11 in the axial direction in an associated square recess 27. 15 One end of the spring 15 is supported in a recess 28 in the control cam element 12 and the other end is supported in the square recess 27 in the housing 11, possibly there in a matching further recess or on a matching pin socket 31st

On the cam member 12, the link 18 is provided. The link pawl 16 supports 20 on the pivot bearing 17 of the housing 11 and its other end moves in the control cam of the gate 18, which corresponds to the principle of the touch-latch system.

The special here is the wide pressure plate 13, which temporarily comes into contact with a furniture part (here drawer back 5), so that the triggering area is larger and thus no malfunction occur.

For this purpose, the two guide pins 14a and 14b, aligned at a distance 29 along the directions of movement 30 of the pressure plate 13, for a virtually play-free guidance on the pressure plate 13 is present. They are located on the left and right of the control cam element 12 and engage in 30 associated fitting holes 26 a and 26 b linearly movable in the directions of movement 30 a. Thus, tilting of the control cam element 12 is avoided. The guide pins 14a and 14b are connected by screws 21 to the pressure plate 13 and are guided almost free of play in the housing 11. 35 The housing 11 is closed with a lid 19 and the screws 20.

There is a mounting device 24 (with screws) on the underside of the housing 11. This touch-latch fitting 10 is used e.g. mounted on the carcass floor 8 or via an additional bar 22 of the carcass back wall 7 or between the carcass side walls 9 or under the 40 drawer bottom 4 by means of the mounting device 24.

Since the housing 11 of the touch-latch fitting 10 has a broad bottom surface in the plane transverse to the directions of movement 30 of the pressure plate 13 (about the same width as the pressure plate 13), it would also be possible to attach the pressure plate 13 with a furniture part and the bottom surface of the housing 11 will then be temporarily in contact with the other furniture part.

Fig. 7 to Fig. 9 show a body 6 with a plurality of drawers 1 in the side view in section.

The housings 11 of the touch-latch fittings 10 are mounted on a plurality of additional strips 22, which are fixed to the body rear wall 7 or between the cabinet side walls 9.

The respective pressure plate 13 of the touch-latch fittings 10 is temporarily in contact with the drawer bottoms 4. 55 Fig. 7 shows the closed position of the drawers 1. Between the front panels 2 and 7 AT 009 013 U1 front end faces of the carcass side walls 9 is a small gap (about 5 mm) in the closed state of the drawer 1. An approximately equal Gap is located between the pressure plates 13 and the housings 11 of the touch-latch fittings 10. 5 Fig. 8 shows the depressed position of the drawers 1 when the user wants to open the drawers. The front panels 2 are in contact with the front end faces of the carcass side walls 9 and are there. The pressure plates 13 are in contact with the housings 11 of the touch-latch fittings 10 and abut there. Fig. 9 shows the open position of the drawers 1. The touch-latch fittings 10 are also in their open position. You can see the guide rails 23 each drawer. 1

Fig. 10 shows various positions X1 to X8 for the assembly of the touch-latch fitting 10 on the body rear wall 7 or on the drawer rear wall 5 or the drawer bottom 4, 15 wherein the touch-latch fittings 10 each vertically or horizontally aligned in their longitudinal extent can be arranged there and can be located centrally, at the edges or in the corners of the parts 4, 5, 7, but on the drawer bottom 4 only in the rear of the drawer 1. 20 The arrangement of the touch-latch fitting 10 has a Influence on the triggering area on the diaphragm 2. The triggering area is usually symmetrical to the touch-latch fitting 10 effective. However, when the touch latch 10 is in a corner (e.g., X3, X4, X7), the trip area becomes asymmetric with the touch latch. 25 In Fig. 11, another position X9 is shown, namely in the drawer 3, in the rear area.

The invention relates in summary to a device for opening and closing a movable furniture part, in particular a drawer, a furniture door, a flap or the like, wherein the device includes at least one touch-latch fitting having a housing and a pressure plate by hand opposite and by means of force of at least one spring relative to each other are linearly movable, and which are interconnected via a link pawl which is attached to one of the parts (housing or pressure plate) and with its free end in a slot on the other of the parts (pressure plate or Gehäu-35 se) verklinkend engages and during the relative movement on the control cam of the scenery runs such that the two parts (pressure plate and housing) to each other in at least one relative position locked to each other and after manual unlocking in a second relative position by force of the spring linear be moved, and where the housing and the pressure plate are substantially linearly movable backlash to each other, due to arranged between 40 housing and pressure plate guides. Advantage is the small and inexpensive construction, as well as the reliable effect of the device, since only a single fitting per drawer is necessary.

LIST OF REFERENCES 45 1. Drawer 2. Front panel 3. Drawer side wall 4. Drawer bottom 50 5. Drawer rear wall 6. Carcass 7. Carcass back 8. Carcass base 9. Carcass side wall 55 10. T ouch latch fitting

Claims (21)

AT 009 013 U1 8 2. Device according to claim 1, characterized in that the at least one housing (11) and pressure plate (13) arranged guide (12, 27, 14, 26, 15, 28, 31) a column guide in the form of a cylinder and / or or square and / or polygonal guide 45 is. 3. Device according to claim 2, characterized in that the at least one housing (11) and pressure plate (13) arranged column guide (12, 27, 14, 26, 15, 28, 31) at least one cylindrical guide pin (14), engages in an associated so pass hole (26) backlash-free and / or at least one square pin (12) which engages clearance in an associated square opening (27), and / or at least one coil spring which engages in an associated hole without play or on an associated pin socket is guided without play. 4. Device according to claim 3, characterized in that the helical spring of the AT 009 013 U1 column guide (12, 27, 14, 26, 15, 28, 31) the spring (15) for the relative movements (30) between housing (11 ) and pressure plate (13). 5. Device according to one or more of claims 1 to 4, characterized in that in or on one of the guides (12, 27; 14, 26; 15, 28, 31) the link (18) is arranged with its control cam. 6. Device according to one or more of claims 3 to 5, characterized in that two guide pins (14a, 14b) are provided, which engage in their associated passport holes (26a, 26b) without play and a square pin in the form of a control cam. Element (12) is provided which engages in an associated square opening (27) with play, wherein in the control cam element (12) the link (18) is located. 7. The device according to claim 6, characterized in that the two guide pins (14 a, 15 14 b) and a control cam element (12) on the pressure plate (13) are fixed and the associated fitting holes (26 a, 26 b) and the square opening ( 27) are in the housing (11). 8. Apparatus according to claim 6 or 7, characterized in that the two Führungsstif-20 te (14 a, 14 b) with the two associated fitting holes (26 a, 26 b) at a distance (29) from each other and extending longitudinally to the directions of movement (30) in the touch-latch fitting (10) are arranged, and between the control cam element (12) and the associated square opening (27). 9. Device according to one or more of claims 6 to 8, characterized in that the guide pins (14a, 14b) are arranged at most far apart from each other in the touch-latch fitting (10). 10. The device according to one or more of claims 6 to 9, characterized in that the spring (15) for the relative movements (30) in a recess (28) in the control cam element (12) engages and on a pin base (31 ) in the square opening (27) for the control cam element (12) in the housing (11) sits. 11. The device according to one or more of claims 6 to 10, characterized in that the control cam element (12) in one of the guide pins (14a, 14b) is integrated. 11. Housing 12. Control cam element 13. Pressure plate 14. Guide pin - &gt; 14a, 14b 5 15. Spring 16. Gate pawl 17. Turning bearing 18. Gate 19. Lid 10 20. Screw 21. Screw 22. Bar 23. Guide 24. Mounting device 15 25. Trip range from 10 to 2. 26. Fit bore 26a, 26b 27 Square recess 28. Recess for 15 in 12 29. Distance of guide pins 14 20 30. Directions of movement of 13 relative to 11 31. Pin base for 15 in 11 32. Stroke of 13 after unlocking of 11 25 Claims: 1. Device for opening and closing Closing a movable furniture part, in particular a drawer, a furniture door, a flap or the like, wherein the device comprises at least one touch-latch fitting (10) having a housing (11) and a pressure plate (13) which manually opposed and automatically by means of the force at least egg ner spring (15) are linearly movable relative to each other, and which are connected to each other via a link pawl (16) on one of the parts (11 or 13) b efestigt and with its free end in a gate (18) on the other of the parts (13 or 11) engages sinking and during the relative movements (30) on the control cam of the guide 35 (18) runs such that the housing (11) and the pressure plate (13) are lockable in at least one relative position to each other and are linearly moved by manual unlocking in a second relative position by the force of the spring (15), characterized in that the housing (11) and the pressure plate (13) substantially can be moved linearly relative to one another without play, on the basis of at least one essentially play-free guide (12, 27; 13) arranged between housing (11) and pressure plate (13). 14, 26; 15, 28, 31). 12. The device according to one or more of claims 6 to 11, characterized in that the at least one spring (15) for the relative movements between the housing (11) and pressure plate (13) is a helical spring which is at least one of the guide pins 40 (14 a , 14b) is arranged. 13. The device according to one or more of claims 6 to 12, characterized in that the pressure plate (13) in the plane transverse to the directions of movement (30) has a larger-sized surface than the control cam element (12). 45 14. The device according to one or more of claims 1 to 13, characterized in that the game of the guide (12, 27, 14, 26, 15, 28, 31) is about +/- 0.05 mm. 15. Device according to one or more of claims 1 to 14, characterized in that the ratio of the play of the guide (12, 27; 14, 26; 15, 28, 31) to the width of the pressure plate (13) is smaller than 2 %, preferably less than 0.5%, and / or the ratio of the play of the guide (12, 27; 14, 26; 15, 28, 31) to the stroke (32) in directions of movement (30) after unlocking is less than 5%, preferably less than 1%. 16. The device according to one or more of claims 1 to 15, characterized in that the touch-latch fitting (10) via its housing (11) or its pressure plate (13) attached to the non-movable furniture part is, and is in temporary contact with the movable furniture part on the other of the components pressure plate (13) or housing (11). 17. The device according to one or more of claims 1 to 16, characterized in that the touch-latch fitting (10) between the drawer bottom (4) and the body rear wall (7) or between the drawer bottom (4) and a separate bar (22) acts , or else between the drawer rear wall (5) and the rear wall of the carcass (7) or between the drawer rear wall (5) and the separate strip (22), or between the drawer side wall (9) or its frame and carcass rear wall (7) or between Drawer side wall (9) or its frame and the separate bar (22) acts, or between a movable part of the rail guide (23) and a non-movable part of the rail guide (23) acts, or between the front panel (2) and the separate bar (22) acts. 15 18. Device according to one or more of claims 1 to 17, characterized in that the size of the triggering area (25) for the touch-latch fitting (10) on the front panel (2) of the drawer (1) is predefined on the basis of Size of the surface of the pressure plate (13) in the plane transverse to the directions of movement (30) and / or due to the quality of the fit tolerance of the play of the guide (12, 27; 14, 26; 15, 28, 31) and / or due to the position of the touch-latch fitting (10). 19. The device according to one or more of claims 1 to 18, characterized in that the touch-latch fitting (10) in the middle, off-center, at the edge, or in the corner 25 of the drawer rear wall (5) or the drawer bottom (4 ) or the carcass rear wall (7) or in the rear region of the drawer side wall (3) is arranged. 20. The device according to one or more of claims 1 to 19, characterized in that the touch-latch fitting (10) horizontally, vertically, or rotated at an angle at the drawer rear wall (5) or the drawer bottom (4) or the carcass back (7) or in the rear region of the drawer side wall (3) is arranged. 21. The device according to one or more of claims 1 to 20, characterized in that a plurality of touch-latch fittings (10) in / on a drawer (1) are provided, 35 wherein the touch-latch fittings (10) then a have mechanical coupling with each other. For this purpose 4 sheets of drawings 40 45 50 55