Source: https://patents.google.com/patent/AT515040B1/en
Timestamp: 2020-06-06 05:08:00
Document Index: 164374353

Matched Legal Cases: ['arts 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2']

AT515040B1 - Drive device for a movable furniture part - Google Patents
AT515040B1
AT515040B1 ATA824/2013A AT8242013A AT515040B1 AT 515040 B1 AT515040 B1 AT 515040B1 AT 8242013 A AT8242013 A AT 8242013A AT 515040 B1 AT515040 B1 AT 515040B1
ATA824/2013A
AT515040A1 (en
2013-10-25 Application filed by Blum Gmbh Julius filed Critical Blum Gmbh Julius
2013-10-25 Priority to ATA824/2013A priority Critical patent/AT515040B1/en
2015-05-15 Publication of AT515040A1 publication Critical patent/AT515040A1/en
2017-12-15 Publication of AT515040B1 publication Critical patent/AT515040B1/en
Drive device (1) for a movable furniture part (2), with a force-actuated ejection element (3) for ejecting the movable furniture part (2) from a closed position (SS) into an open position (OS) and a locking device (4) for locking the ejection element (3). 3) in a locking position (V), the locking device (4) having a control element (5) connected to the ejection element (3) and a slide track (6) for the control element (5), wherein the slide track (6) - outside a possibly existing detent recess (7) - partially different hard side wall portions (8, 9).
Description: The invention relates to a drive device for a movable furniture part, comprising a force-actuated ejection element for ejecting the movable furniture part from a closed position into an open position and a locking device for locking the ejection element in a locking position, wherein the locking device is a control member connected to the ejection element Having a slide track for the control. In addition, the invention relates to a piece of furniture with a furniture body, a furniture body movable on the furniture part and such a drive device.
In the furniture fitting industry diverse drive devices have been produced for many years, with which the opening and / or closing movement of the movable furniture part (drawer, flap, door) are supported or carried out automatically. Particularly well-known are so-called touch-latch mechanisms, in which an unlocking takes place by pressing on the movable furniture part, after which the drive or ejection device opens the movable furniture part.
Particularly suitable for such mechanisms lockable controls that are guided in a slide track. In most cases, these slide tracks are heart-curved in shape and have a heart-curve-shaped section in which the control element is held or locked in a locking position of the locking device. By overpressing the movable furniture part in a behind the closed position overpressure position then the control of this locking position (detent recess) is released, after which the kraftbeaufschlagte ejection element can move freely and ejects the movable furniture part in the opening direction.
In addition to the purely mechanical or functional requirements for such drive devices lately take the requirements in terms of ease of use and ease of use. An important aspect is also the noise, which is quite high in many currently known drive devices. This is due, among other things, to the quite large forces acting and also to the play between the moving components. Among other things, a source of noise is the touching or strong attacks of the control in the slide track, in particular on side walls of the slide track.
The object of the present invention is therefore to provide a comparison with the prior art improved drive device. In particular, the noise is to be reduced.
This is achieved by a drive device with the features of claim 1. Accordingly, the invention provides that the slide track area has different hard side wall areas, wherein when the slide track has a detent recess, these different hard side wall areas are formed outside of this detent recess. These different hard side wall areas make it possible to design the slide track in such a way that where a particularly high noise development has been detected in the area of the slide track, the side wall area is formed with a correspondingly different hardness or surface design.
Particularly preferred may be provided for this purpose that the slide track has at least one hard side wall portion and at least one soft side wall portion. Accordingly, the soft sidewall area serves as a stop for the control in the particularly stressed or noise-prone areas. These areas are especially to be found where the slide track has a great leadership function for the control. In the other areas, where only a small guide function is necessary - that is, where the control moves by itself without guidance also almost exactly along the slide track - the side wall portion may be formed hard.
The entire slide track can be composed of different parts.
It can also be present as a separate component of the drive device. Particularly preferably, however, it is provided that the slide track is formed in a carrier made of plastic, preferably of polyamide-6, wherein the side wall portions are at least partially formed by the material of the carrier itself. Thus, the carrier itself forms essential parts of the slide track. Particularly preferably, the plastic of the carrier is an injection molded part. As an alternative to the preparation of polyamide-6, this support may also consist of comparable thermoplastics or semicrystalline thermoplastics. Also plastic mixtures are possible.
In principle, two variants can be used for the different hard training of sidewall areas. These two variants can also be present mixed in a single slide track. According to the first variant, it is accordingly provided that the material of the sidewall region itself is softer. This is, so to speak, a "mechanical" or "chemical" variant for producing a soft sidewall region. But there is also the possibility of "geometrical" generation of a softer sidewall area. In this case, the material does not have to be softer per se, but it is formed by a thinner design of the side wall this yielding and thus "soft" upon impact of the side member.
According to the first embodiment, it is preferably provided that the at least one, soft side wall portion of a rubber-elastic material, preferably made of a thermoplastic elastomer, is formed. Particularly preferably, a thermoplastic polyurethane is used. Also material mixtures are possible. Particularly preferably, it is provided here that the at least one, soft side wall area is designed in the form of a pad formed separately from the carrier. That is, this edition is attached as an independent component on the carrier and forms the slide track with. Specifically, it may be provided for this purpose that the at least one soft sidewall region has a hardness between 40 and 95 Shore A, preferably between 70 and 80 Shore A. In a test method based on DIN ISO 7619-1, a hardness of 78 Shore A was found in a thermoplastic polyurethane. This hardness is the mechanical resistance, which opposes a material of the mechanical introduction of a harder specimen. In other words, this hardness is the mechanical resistance which the slide track opposes to the mechanical stops of the control.
For the second embodiment, it is preferably provided that the at least one, soft side wall region is thin-walled with a wall thickness less than 0.6 mm, preferably between 0.5 and 0.3 mm is formed. As a result of this thinner design of the side wall, the material itself is not made softer, but this thin region gives way when the control element strikes and thereby reduces the noise development. In order to enable a simple production here, it is preferably provided that the at least one thin-walled, soft side wall region is formed integrally with the carrier.
The carrier is basically formed of a harder material than the pads. The hardness can be better expressed for this carrier on the elastic modulus than a Shore value. It is therefore preferred that the carrier has a modulus of elasticity between 1,000 and 20,000 MPa, preferably between 4,000 and 6,000 MPa. Preferably, the modulus of elasticity is 5,000 MPa. In itself, however, the carrier may also have differently hard or elastic regions. Basically, it should also be mentioned that the entire slide track can have a wide variety of types and sizes of elastic moduli or hardnesses. Preferably, however, only two different types are provided, namely a hard area with hard side wall areas, wherein the elastic modulus is the same in all these hard side wall areas. Second, a soft side wall portion is provided, wherein in all sidewall regions of a rubber-elastic material, the Shore hardness is equal. In contrast, the thin-walled sidewall regions have the same modulus of elasticity as the hard sidewall regions, but are designed to be yielding or elastic by their geometry.
Depending on the exact configuration of the entire slide track can a variety of
Railway areas be provided with a soft sidewall area. As already indicated, however, it is preferably provided that the slide track has deflection areas and stop areas for the control element, the at least one, soft side wall area being formed in these deflection areas or stop areas. These deflecting areas or abutment areas are especially to be found where a high spring force from the control acts transversely on the side wall of the slide track. In contrast, there are other areas in which the force on the control element acts substantially parallel to the side wall, so that at most frictional forces between the control element and the side wall occur. In these areas, it is not necessary to make the side wall particularly soft.
According to a preferred embodiment of the present invention can be provided that the slide track has a detent recess in which the control rests in the locking position of the locking device. Basically, of course, the slide track in this locking recess have a soft side wall area. According to the invention, however, the slide track outside of this detent recess partially different hard side wall areas.
Furthermore, it may be preferably provided that the slide track for the control has a latching portion in the form of the detent recess, an overpressure portion with a deflection bevel, an ejection section, a change section, a bearing section and a clamping section. In the overpressure section and in the discharge section, no high noise developments are generally to be feared. However, these can occur in the interchangeable section in which a change of the control element takes place between the ejection section and the clamping section. Also in a bearing section, in which the control is held in befindlicher in free-running movable furniture part, noise may occur during attacks. Also in the tensioning section, this can be done by the curved design of the slide track. Therefore, it is preferably provided that only the changing portion, the bearing portion and the clamping portion at least partially have a soft side wall portion. This is particularly advantageous because exactly in these sections are the deflection or stop areas for the control.
In general, it can be provided that the ejection element is mounted linearly movable on the carrier, wherein the ejection element of a force on the one hand on the carrier and on the other hand on the ejection ejection energy storage, preferably in the form of a tension spring, is subjected to force.
For a simple movement possibility of the control is preferably provided that the, preferably peg-shaped, control element is arranged on a movable on the ejection element, preferably pivotable, mounted control lever.
Furthermore, it is preferably provided that the locking device can be unlocked by overpressing the movable furniture part in a lying behind the closed position overpressure position. Of course, a release can be done by pulling the movable furniture part. Preferably, however, provided that when pulling the movable furniture part no unlocking, but the movable furniture part can be easily pulled without unlocking the locking device in the opening direction.
In order not to allow not only an automatic opening movement, is preferably one, preferably damped by a damping device, retracting device for pulling the movable furniture part from an open position in the closing direction provided in the closed position.
Protection is also sought for a piece of furniture with a furniture body, a furniture body movably mounted on the furniture part and a drive device according to the invention. It can be provided that the drive device is associated with the furniture body and acts on a arranged on the movable furniture part driver or directly on the movable furniture part. Preferably, however, it is provided that the drive device is associated with the movable furniture part and repels on the furniture body or on a furniture body fixed carrier.
Further details and advantages of the present invention will be explained in more detail below with reference to the description of the figures with reference to the exemplary embodiments illustrated in the drawings. 1 shows schematically a piece of furniture with movable furniture parts in different
Figs. 2 and 3 show an exploded driving device; Fig. 4 shows the carrier with the supports forming the soft sidewall regions; and Figs. 5 to 11 are top views and perspective views of the control element in different sections of Figs link path.
In Fig. 1, a furniture 17 is shown schematically consisting of a furniture body 18 and a plurality of movable furniture parts 2 (drawers). As essential components in this case has a movable furniture part 2, the drawer container 21 and the front panel 20. The movable furniture part 2 is movably mounted on the furniture body 18 via a pull-out guide 24, the pull-out guide 24 having a carcass rail 23, optionally a middle rail (not shown) and a drawer rail 22.
At the very top shown movable furniture part 2 or at the drawer rail 22, the drive device 1 is attached via the carrier 10. The slide track 6 is formed in the carrier 10 and forms together with the control element 5, the locking device 4 for the ejection element 3. The ejection element 3 in turn can be coupled via the driver 19 with the carcass rail 23 and the furniture body 18. The top drawer is in an open position OS. At the same time, the ejection force accumulator 13 (in this case, a compression spring) is relaxed and the ejection element 3 is not locked by the control element 5 in the latching region R of the slide track 6. Rather, the control element 5 is located in a region facing away from the latching region R.
Now, if the movable furniture part 2 is moved in the closing direction SR from this open position OS (see second drawer from above), so it is tensioned due to the manual pressure on the movable furniture part 2 by coupling the discharge element 3 with the driver 19 of the ejection force memory 13 , whereby the control 5 moves in the latching region R. This is the locking device 4 in the locking position V. This is not apparent in this schematic drawing, but can be understood from the drawings below.
Once this locking position V is reached, the only schematically indicated retraction device 16 together with damping device 15, the movable furniture part 2 move into the closed position SS (see third drawer from above). Also in this closed position SS, the locking device 4 is locked in the locking position V.
If then manually pressed on top of the movable furniture part 2 according to the fourth drawer from above, the movable furniture part 2 enters a lying behind the closed position SS Uberdrückstellung ÜS, in which the unlocking of the locking device 4 takes place. As a result, the ejection force accumulator 13 can relax and the movable furniture part 2 is ejected in the opening direction OR, so that the open position OS according to the uppermost drawer is reached again.
A concrete embodiment of a drive device 1 is shown in the exploded views of FIG. 2 and 3. Accordingly, the drive device 1, the carrier 10 and the cover 26, wherein the slide track 6 is formed in two components. The carrier 10 and the lid 26 together form the housing of the drive device 1. In this housing or on the carrier 10, the ejection slide 3 is mounted linearly movable. The ejection element 3 is subjected to a force from the ejection energy accumulator 13 (two tension springs). The ejection force accumulator 13 is on the spring base 33 on the one hand with the carrier 10 and on the
Spring base 34 on the other hand connected to the ejection element 3. On the ejection element 3, the control lever 4 is pivotally mounted on the axis of rotation 29. At the ejection element remote end of this control lever 4, the peg-shaped or cylindrical control element 5 is arranged, said control element 5 is guided in the slide track 6. In the region of the ejection element, the guide roller 32 is also provided for the ejection element, wherein the guide roller 32 is guided in the guide track 40 formed in the carrier 10 and in the lid 26. On the support 10 of the Verrastungsdämpfer 30 is rotatably supported for the control element 5, wherein this is held by the holder 31 on the carrier 10. Furthermore, a retraction device 16 is provided together with not shown Einziehkraftspeicher, the retraction device 16 is guided in the guideway 35 movable. At this retraction device 16 and the catch lever 25 is pivotally mounted, via which a coupling with the driver 19, not shown here takes place. Furthermore, the components of a synchronizing device 27 are shown in FIGS. 2 and 3, via which synchronization with a drive device 1 arranged on the opposite side of the furniture body 18 can take place. In addition, a Tiefenverstellrad 28 is provided, with which the relative position of the housing to the drawer rail 22 and the movable furniture part 2 can be adjusted.
As can be clearly seen in Figs. 2 and 3, two supports 11 are arranged in the carrier 10, which form the soft side wall portions 9 of the slide track 6. These pads 11 are in the carrier 10 z. B. positively and / or frictionally secured, held or used. As can also be seen from FIG. 4, the majority of the slide track 6 is formed integrally with the carrier 10 or the carrier 10 forms the majority of the slide track 6. This carrier 10 is injection-molded from a polyamide-6 and thus forms the hard side wall regions 8 Sliding track 6, but also a soft side wall portion 9 may be formed from this polyamide-6 or directly from the carrier 10, in which case a softer stop for the control 5 is achieved by the geometry and a thin wall.
In Fig. 5, the essential portions of the slide track 6 are illustrated. The control element 5 rests in the latching recess 7 of the latching section R. In this area, a recess 37 is provided so that an interaction of the control element 5 with the Verrastungsdämpfer 30 is possible. By overpressing the movable furniture part 2 in the overpressure position ÜS, the control element 5 reaches the overpressure area Ü due to the deflection slope 12. The ejection section A directly adjoins this overpressure region U, in which the movable furniture part 2 is ejected. After completion of the ejection operation, it is necessary to change the control element 5 from the ejection section A to the clamping section S. This is achieved by way of the transition section W, which is arranged essentially transversely to the direction of ejection. In order to achieve a subsequent freewheeling of the movable furniture part 2, the bearing section L is formed on the locking section remote end of the slide track 6. At this the clamping section S connects. In turn, this locking section S is followed by the locking section VA, which finally opens into the latching region R. Essential for the present invention is now that the slide track 6 outside the detent recess 7 partially different hard side wall portions 8 and 9 has. The soft side wall portion 9 serve to reduce noise due to the impact of the control element 5 on the side walls of the slide track 6. For this purpose, arranged in the clamping section S and in the bearing section L pads 11 made of a softer material (thermoplastic polyurethane), which is greatly reduced upon impact of the control element 5 on these soft side wall portions 9, the noise. The same effect applies to the soft side wall region 9 in the region of the interchangeable portion W, but this is not made of a different material, but thin-walled with a wall thickness D below 0.6 mm, preferably between 0.5 mm and 0.3 mm formed is. But not only by this thin wall thickness D, this area of the change section W is resilient, it also requires the recesses 36, so that the entire thin-walled side wall portion 9 can yield when striking the control element 5. Upon impact of the control element 5, the impact energy is thus not entirely converted into noise but also into deformation, whereby noise reduction is achieved. The element 38 and the recess 39 serve as deflectors for the control 5 at a
In Fig. 6 is a matching to Fig. 5 perspective view of the carrier 10 together with the control 5 can be seen, with the control element 5 is located in the latching section R. In order not to create confusion in FIG. 5, it can be seen in FIG. 6 in which sections or areas of the slide track 6 the stop areas G and deflection areas U are located. Exactly in these known for their high noise areas G and U, therefore, the soft side wall portions 9 are provided.
In Figs. 7 to 11, the path of the control 5 is also illustrated by the slide track. As soon as the manual pressure on the movable furniture part 2 decreases, the ejection force memory 13, whereby the control element 5 in the ejection section A according to FIGS. 8a and 8b emotional. At the end of this ejection section A, the control element 5 finally enters the interchangeable section W according to FIGS. 9a and 9b. The impact on the side wall of this exchangeable portion W is partially absorbed or damped by the soft sidewall portion 9. Subsequently, the control element 5 often passes with considerable force into the bearing section L according to FIGS. 10a and 10b, the impact there being cushioned by the side wall region 9 consisting of a rubber-elastic material.
Thus, a lower noise is given in this attack area G. During the subsequent tightening of the ejection force accumulator 13 according to FIG. 11, the control element 5 moves through the clamping section S. In the deflection region U, a noise generation is reduced by the soft sidewall region 9 consisting of a rubber-elastic material.
In summary, it is in the present invention thus the noise attenuation in the heart cam (slide track 6) of a touch-latch mechanism (drive device 1). During the opening and closing movement of a furniture fitting with ejection function, load changes or switching points of the control pin (control element 5) occur within the heart curve. All of these points in the heart curve produce more or less loud sounds. To prevent or reduce these, these points in the heart curve are performed by soft parts or damping elements (soft side wall regions 9) or by specially designed wall thicknesses that allow yielding.
1. Drive device (1) for a movable furniture part (2), with - a force-actuated ejection element (3) for ejecting the movable furniture part (2) from a closed position (SS) in an open position (OS) and - a locking device (4) Locking the ejection element (3) in a locking position (V), the locking device (4) having a control element (5) connected to the ejection element (3) and a slide track (6) for the control element (5), characterized in that Guide track (6) partially different hard side wall portions (8, 9), wherein when the slide track (6) has a detent recess (7), these different hard side wall portions (8, 9) outside this detent recess (7) are formed.
2. Drive device according to claim 1, characterized in that the slide track (6) in a carrier (10) made of plastic, preferably made of polyamide-6, is formed, wherein the side wall portions (8, 9) at least partially from the material of the carrier (10 ) are themselves formed.
3. Drive device according to claim 1 or 2, characterized in that the slide track (6) has at least one hard side wall region (8) and at least one soft side wall region (9).
4. Drive device according to claim 3, characterized in that the at least one soft side wall region (9) made of a rubber-elastic material, preferably made of thermoplastic polyurethane.
5. Drive device according to claim 3 or 4, characterized in that the at least one soft side wall region (9) in the form of a support (10) formed separately support (11) is formed.
6. Drive device according to one of claims 3 to 5, characterized in that the at least one soft side wall region (9) has a hardness between 40 and 95 Shore A, preferably between 70 and 80 Shore A.
7. Drive device according to claim 3, characterized in that the at least one soft side wall region (9) is thin-walled with a wall thickness (D) of less than 0.6 mm, preferably between 0.5 mm and 0.3 mm.
8. Drive device according to claim 7, characterized in that the at least one thin-walled, soft side wall region (9) is formed integrally with the carrier (10).
9. Drive device according to one of claims 2 to 8, characterized in that the carrier (10) has a modulus of elasticity between 1,000 and 20,000 MPa, preferably between 4,000 and 6,000 MPa.
10. Drive device according to one of claims 3 to 9, characterized in that the slide track (6) deflection areas (U) and stop areas (G) for the control element (5), wherein in these deflection areas (U) or stop areas (G) of at least one soft side wall region (9) is formed.
11. Drive device according to one of claims 1 to 10, characterized in that the slide track (6) has a latching recess (7), in which the control element (5) in the locking position (V) of the locking device (4).
12. Drive device according to one of claims 1 to 11, characterized in that the slide track (6) for the control (5) has a latching portion (R) in the form of the detent recess (7), a Uberdrückabschnitt (Ü) with a deflection bevel (12). , an ejection section (A), an exchanging section (W), a bearing section (L) and a clamping section (S).
13. Drive device according to claim 12, characterized in that only the changing portion (W), the bearing portion (L) and the clamping portion (S) at least partially have a soft side wall portion (9).
14. Drive device according to one of claims 2 to 13, characterized in that the ejection element (3) on the carrier (10) is mounted linearly movable.
15. Drive device according to one of claims 2 to 14, characterized in that the ejection element (3) of a on the one hand on the carrier (10) and the other on the ejection element (3) fixed ejection force accumulator (13), preferably in the form of a tension spring, is subjected to force.
16. Drive device according to one of claims 1 to 15, characterized in that the, preferably peg-shaped, control element (5) is arranged on a on the ejection element (3) movable, preferably pivotable, mounted control lever (14).
17. Drive device according to one of claims 1 to 16, characterized in that the locking device (4) by overpressing the movable furniture part (2) in a behind the closed position (SS) lying overpressure position (ÜS) can be unlocked.
18. Drive device according to one of claims 1 to 17, characterized by a, preferably by a damping device (15) damped, retracting device (16) for pulling the movable furniture part (2) from an open position (OS) in the closing direction (SR) in the closed position (SS).
19. Furniture (17) with a furniture body (18), a on the furniture body (18) movably mounted furniture part (2) and a drive device (1) according to one of claims 1 to 18.
ATA824/2013A 2013-10-25 2013-10-25 Drive device for a movable furniture part AT515040B1 (en)
ATA824/2013A AT515040B1 (en) 2013-10-25 2013-10-25 Drive device for a movable furniture part
JP2016526127A JP6378331B2 (en) 2013-10-25 2014-10-22 Drive unit for movable furniture parts
ES14802585.1T ES2686643T3 (en) 2013-10-25 2014-10-22 Drive device for a mobile furniture part
EP17187729.3A EP3266347A1 (en) 2013-10-25 2014-10-22 Drive device for a movable furniture part
EP14802585.1A EP3060084B1 (en) 2013-10-25 2014-10-22 Drive device for a movable furniture part
PCT/AT2014/000189 WO2015058222A1 (en) 2013-10-25 2014-10-22 Drive device for a movable furniture part
CN201480058058.XA CN105658113B (en) 2013-10-25 2014-10-22 Driving equipment for movable furniture parts
US15/134,785 US10051962B2 (en) 2013-10-25 2016-04-21 Drive device for a movable furniture part
JP2018103228A JP2018153683A (en) 2013-10-25 2018-05-30 Drive for movable furniture part
AT515040A1 AT515040A1 (en) 2015-05-15
AT515040B1 true AT515040B1 (en) 2017-12-15
ID=51951526
US (1) US10051962B2 (en)
EP (2) EP3060084B1 (en)
JP (2) JP6378331B2 (en)
CN (1) CN105658113B (en)
AT (1) AT515040B1 (en)
ES (1) ES2686643T3 (en)
WO (1) WO2015058222A1 (en)
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2013-10-25 AT ATA824/2013A patent/AT515040B1/en active
2014-10-22 EP EP14802585.1A patent/EP3060084B1/en active Active
2014-10-22 CN CN201480058058.XA patent/CN105658113B/en active IP Right Grant
2014-10-22 EP EP17187729.3A patent/EP3266347A1/en active Pending
2014-10-22 JP JP2016526127A patent/JP6378331B2/en active Active
2014-10-22 ES ES14802585.1T patent/ES2686643T3/en active Active
2014-10-22 WO PCT/AT2014/000189 patent/WO2015058222A1/en active Application Filing
2016-04-21 US US15/134,785 patent/US10051962B2/en active Active
2018-05-30 JP JP2018103228A patent/JP2018153683A/en active Pending
EP3266347A1 (en) 2018-01-10
EP3060084B1 (en) 2018-06-06
JP2018153683A (en) 2018-10-04
ES2686643T3 (en) 2018-10-18
US10051962B2 (en) 2018-08-21
EP3060084A1 (en) 2016-08-31
CN105658113A (en) 2016-06-08
JP2016533805A (en) 2016-11-04
CN105658113B (en) 2019-01-11
WO2015058222A1 (en) 2015-04-30
US20160227927A1 (en) 2016-08-11
AT515040A1 (en) 2015-05-15
JP6378331B2 (en) 2018-08-22
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