EP3266347B1 - Antriebsvorrichtung für ein bewegbares möbelteil - Google Patents

Antriebsvorrichtung für ein bewegbares möbelteil Download PDF

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Publication number
EP3266347B1
EP3266347B1 EP17187729.3A EP17187729A EP3266347B1 EP 3266347 B1 EP3266347 B1 EP 3266347B1 EP 17187729 A EP17187729 A EP 17187729A EP 3266347 B1 EP3266347 B1 EP 3266347B1
Authority
EP
European Patent Office
Prior art keywords
drive device
section
control element
areas
carrier
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP17187729.3A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3266347A1 (de
Inventor
Christof GOETZ
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Julius Blum GmbH
Original Assignee
Julius Blum GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Julius Blum GmbH filed Critical Julius Blum GmbH
Publication of EP3266347A1 publication Critical patent/EP3266347A1/de
Application granted granted Critical
Publication of EP3266347B1 publication Critical patent/EP3266347B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47BTABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B88/00Drawers for tables, cabinets or like furniture; Guides for drawers
    • A47B88/40Sliding drawers; Slides or guides therefor
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47BTABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B88/00Drawers for tables, cabinets or like furniture; Guides for drawers
    • A47B88/40Sliding drawers; Slides or guides therefor
    • A47B88/407Adjustably or detachably mounted drawers
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47BTABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B88/00Drawers for tables, cabinets or like furniture; Guides for drawers
    • A47B88/40Sliding drawers; Slides or guides therefor
    • A47B88/453Actuated drawers
    • A47B88/46Actuated drawers operated by mechanically-stored energy, e.g. by springs
    • A47B88/47Actuated drawers operated by mechanically-stored energy, e.g. by springs having both self-opening and self-closing mechanisms which interact with each other
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47BTABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B88/00Drawers for tables, cabinets or like furniture; Guides for drawers
    • A47B88/40Sliding drawers; Slides or guides therefor
    • A47B88/453Actuated drawers
    • A47B88/46Actuated drawers operated by mechanically-stored energy, e.g. by springs
    • A47B88/463Actuated drawers operated by mechanically-stored energy, e.g. by springs self-opening
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47BTABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B88/00Drawers for tables, cabinets or like furniture; Guides for drawers
    • A47B88/50Safety devices or the like for drawers
    • A47B88/57Safety devices or the like for drawers preventing complete withdrawal of the drawer
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47BTABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B2210/00General construction of drawers, guides and guide devices
    • A47B2210/0091Drawer movement damping

Definitions

  • the invention relates to a drive device having the features of the preamble of claim 1.
  • the invention also relates to a piece of furniture with a furniture body, a furniture part that can be moved on the furniture body, and such a drive device.
  • Lockable control elements that are guided in a link track are particularly well suited for such mechanisms.
  • these link tracks are designed in the shape of a heart curve or have a heart-shaped section in which the control element is held or locked in a locking position of the locking device.
  • the control element is then released from this locking position (detent recess), after which the force-loaded ejection element can move freely and ejects the movable furniture part in the opening direction. Examples of this go from the EP 2 208 440 A1 and the ES 2 315 055 A1 out.
  • the object of the present invention is therefore to provide a drive device which is improved over the prior art. In particular, the development of noise should be reduced.
  • the link track outside the detent recess—has side wall areas of different hardness in some areas.
  • These side wall areas of different hardness make it possible to design the link track in such a way that where a particularly high level of noise development in the area of the link track was determined, the side wall area is designed with a correspondingly different hardness or surface design.
  • the link track has side wall areas of different hardness in some areas, and if the link track has a detent recess, these side wall areas of different hardness are formed outside of this detent recess.
  • the link track has at least one hard side wall area and two soft side wall areas. Accordingly, the soft side wall areas serve as a stop for the control element in the particularly stressed or noise-prone areas. These areas are mainly to be found where the link track has a major guiding function for the control element. In the other areas where only a small guiding function is necessary - that is, where the control element moves by itself without a guide almost exactly along the link path - the side wall area can be made hard.
  • the entire link track can be composed of different parts. It can also be present as a separate component of the drive device.
  • the link track is formed in a carrier made of plastic, preferably polyamide 6, with the side wall areas being formed at least partially from the material of the carrier itself.
  • the carrier itself forms essential parts of the link path.
  • the plastic of the carrier is particularly preferably an injection molded part.
  • this carrier can also consist of comparable thermoplastics or semi-crystalline thermoplastics. Plastic mixtures are also possible.
  • two variants can be used for the formation of the soft side wall areas. These two variants can also be mixed in a single link track.
  • the material of the side wall area itself is softer and therefore more flexible. This is, so to speak, a "material-related" variant for creating a soft sidewall area.
  • the material does not have to be softer than, for example, in the hard side wall area, but by making the side wall thinner, it is made flexible and thus “soft” and therefore also flexible when the side element hits.
  • the two soft side wall areas are formed from a rubber-elastic material, preferably from a thermoplastic elastomer.
  • thermoplastic polyurethane is particularly preferably used. Material mixtures are also possible. According to the invention, it is provided that the two soft side wall areas are designed in the form of a support that is designed separately from the carrier.
  • the two soft side wall areas have a hardness of between 40 and 95 Shore A, preferably between 70 and 80 Shore A.
  • a hardness of 78 Shore A was determined for a thermoplastic polyurethane. This hardness is the mechanical resistance that a material has opposed to the mechanical introduction of a harder test body. In other words, this hardness is the mechanical resistance that the link path opposes to the mechanical impact of the control element.
  • the at least one soft side wall area is thin-walled with a wall thickness of less than 0.6 mm, preferably between 0.5 and 0.3 mm.
  • a free space or a recess on the side of this soft side wall area that faces away from the link track.
  • the thin side wall is pushed or bent into this free space when the control element impacts.
  • This free space is preferably elongate and essentially parallel to the link track surface in this soft side wall area.
  • This thinner design of the side wall does not mean that the material itself is softer, but rather this thin area yields when the control element is struck and reduces the noise development as a result of the deformation.
  • the at least one thin-walled, soft side wall area is formed in one piece with the carrier.
  • the carrier is generally formed from a harder material than the pads.
  • the hardness of this carrier can be better expressed via the modulus of elasticity than via a Shore value. It is therefore preferably provided that the carrier has a modulus of elasticity between 1,000 and 20,000 MPa, preferably between 4,000 and 6,000 MPa.
  • the modulus of elasticity is preferably 5,000 MPa.
  • the carrier itself can also have areas of different hardness or elasticity.
  • the entire link track can have the most varied types and sizes of moduli of elasticity or hardness. However, only two different types are preferably provided, namely a hard area with hard side wall areas, the modulus of elasticity being the same in all of these hard side wall areas. Second, a soft sidewall area is provided.
  • the Shore hardness is preferably the same in all soft side wall areas made of a rubber-elastic material.
  • the likewise soft but thin-walled side wall areas preferably have the same modulus of elasticity as the hard side wall areas, but are designed to be flexible or elastic due to their geometry. What these two types of soft sidewall areas have in common, however, is that the deformation of the surface of the soft sidewall area is greater than the deformation of the hard sidewall area at the same sidewall impact speed.
  • the two soft sidewall areas form a crumple zone upon impact of the control element.
  • the deformation can be different within the differently designed and located at different places soft sidewall areas. However, it is essential that the deformation in each soft sidewall area is always greater than in the hard sidewall areas. Provided, of course, that the impact speed is the same and the control element impacts at least a similar angle. In other words, the same force exerted by the control element causes less deformation in the hard side wall area than in the soft side wall area.
  • the link track has deflection areas and stop areas for the control element, with the at least one soft side wall area being formed in these deflection areas or stop areas.
  • deflection areas or stop areas are found primarily where a high spring force from the control element acts transversely on the side wall of the link track.
  • the control element rests in the latching depression when the locking device is in the locking position.
  • the link track can also have a soft side wall area in this detent recess. According to the invention, however, the link track outside of this detent recess has side wall areas of different hardness in some areas.
  • the sliding track for the control element has a latching section in the form of the latching trough, a press-over section with a deflection bevel, an ejection section, a changing section, a bearing section and a tensioning section.
  • a latching section in the form of the latching trough, a press-over section with a deflection bevel, an ejection section, a changing section, a bearing section and a tensioning section.
  • the ejection element is mounted on the carrier so that it can be moved linearly, the ejection element being subjected to force by an ejection force accumulator, preferably in the form of a tension spring, fastened on the one hand to the carrier and on the other hand to the ejection element.
  • an ejection force accumulator preferably in the form of a tension spring
  • the preferably pin-shaped control element is arranged on a control lever that is movably, preferably pivotably, mounted on the ejection element.
  • the locking device can be unlocked by pushing the movable furniture part into a pushing-over position located behind the closed position.
  • it can also be triggered by pulling on the movable furniture part.
  • it is preferably provided that when the movable furniture part is pulled, no unlocking takes place, but rather the movable furniture part can simply be pulled in the opening direction without unlocking the locking device.
  • a retraction device preferably damped by a damping device, is preferably provided for retracting the movable furniture part from an open position in the closing direction into the closed position.
  • Protection is also sought for a piece of furniture with a furniture body, a furniture part movably mounted on the furniture body and a piece of furniture according to the invention drive device.
  • the drive device is assigned to the furniture body and acts on a driver arranged on the movable furniture part or directly on the movable furniture part.
  • the drive device is assigned to the movable furniture part and repels itself on the furniture body or on a driver that is fixed to the furniture body.
  • In 1 is a piece of furniture 17 consisting of a furniture body 18 and a plurality of movable furniture parts 2 (drawers) shown schematically.
  • a movable furniture part 2 has the drawer container 21 and the front panel 20 as essential components.
  • the movable furniture part 2 is movably mounted on the furniture carcass 18 via a pull-out guide 24 , the pull-out guide 24 having a carcass rail 23 , optionally a central rail (not shown) and a drawer rail 22 .
  • the drive device 1 is fastened via the carrier 10 to the movable furniture part 2 shown at the very top or to its drawer rail 22 .
  • the sliding track 6 is formed in the carrier 10 and, together with the control element 5, forms the locking device 4 for the ejector element 3.
  • the ejector element 3 in turn can be coupled to the carcass rail 23 or the furniture carcass 18 via the driver 19.
  • the top drawer is in an open position OS.
  • the ejection force accumulator 13 in this case a compression spring
  • the control element 5 is located in a region facing away from the latching region R.
  • the only schematically indicated retraction device 16 together with the damping device 15 can retract the movable furniture part 2 into the closed position SS (see third drawer from the top).
  • the locking device 4 is also locked in the locking position V in this locking position SS.
  • the movable furniture part 2 If, according to the fourth drawer, the movable furniture part 2 is pressed manually from above, the movable furniture part 2 moves into an overpressure position ÜS behind the closed position SS, in which the locking device 4 is unlocked. 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 top drawer is reached again.
  • a specific exemplary embodiment of a drive device 1 is shown in the exploded views according to FIG 2 and 3 evident.
  • the drive device 1 has the carrier 10 and the cover 26, with the link track 6 being formed in both components.
  • the carrier 10 and the cover 26 together form the housing of the drive device 1.
  • the ejection carriage 3 is mounted in a linearly movable manner.
  • the ejection element 3 is subjected to a force from the ejection force 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 connected to the ejection element 3 via the spring base 34 on the other hand.
  • the control lever 4 is pivotably mounted on the ejection element 3 via the axis of rotation 29 .
  • the control element 5 which is designed in the form of a peg or cylindrical, is arranged, with this control element 5 being guided in the link track 6 .
  • the guide roller 32 for the ejector element is also provided in the area of the ejection element, with the guide roller 32 being guided in the guide track 40 formed in the carrier 10 and in the cover 26 .
  • the latching damper 30 for the control element 5 is rotatably mounted on the carrier 10 , and is held on the carrier 10 by the holder 31 .
  • a drawing-in device 16 including a drawing-in force storage device (not shown) is provided, with the drawing-in device 16 being movably guided in the guide track 35 .
  • the catch lever 25 is also pivotably mounted on this pull-in device 16 and is used to couple it to the driver 19 (not shown here). Further are in the 2 and 3 the components of a synchronizing device 27 are shown, via which synchronization with a drive device 1 arranged on the opposite side of the furniture carcass 18 can take place. In addition, a depth adjustment wheel 28 is provided, with which the position of the housing relative to the drawer rail 22 or to the movable furniture part 2 can be adjusted.
  • two supports 11 are arranged in the carrier 10, which also form the soft side wall areas 9 of the link track 6. These conditions 11 are in the carrier 10 z. B. positively and / or frictionally fastened, held or used. How out 4 also visible, the majority of the link track 6 is formed in one piece with the carrier 10 or the carrier 10 forms the majority of the link track 6.
  • This carrier 10 is injection molded from a polyamide 6 and thus forms the hard side wall areas 8 of the link track 6, but also a soft side wall area 9 can be formed from this polyamide 6 or directly from the carrier 10, in which case a softer stop for the control element 5 is then achieved through the geometry and a thin wall.
  • FIG 5 the essential sections of the link path 6 are illustrated.
  • the control element 5 rests in the detent recess 7 of the detent section R.
  • a recess 37 is also provided in this area, so that the control element 5 can interact with the latching damper 30 .
  • the control element 5 By overpressing the movable furniture part 2 into the overpressure position ÜS, the control element 5 reaches the overpressure area Ü due to the deflection bevel 12.
  • the ejection section A in which the movable furniture part 2 is ejected, directly adjoins this overpressing area Ü. After completion of the ejection process, the control element 5 must be changed from the ejection section A to the clamping section S.
  • the link track 6 has side wall areas 8 and 9 of different hardness in areas outside of the detent recess 7 .
  • the soft side wall areas 9 serve to reduce noise development caused by the control element 5 hitting the side walls of the link track 6 .
  • the supports 11 arranged in the clamping section S and in the bearing section L are made of a softer material (thermoplastic polyurethane), which greatly reduces the noise generated when the control element 5 hits these soft side wall areas 9 .
  • the same effect applies to the soft side wall area 9 in the area of the interchangeable section W, although this is not made of a different material but is thin-walled with a wall thickness D of less than 0.6 mm, preferably between 0.5 mm and 0.3 mm is. But not only because of this thin wall thickness D is this area of the interchangeable section W designed to be flexible, it also requires the recesses 36 so that the entire thin-walled side wall area 9 can give way when the control element 5 hits it.
  • the control element 5 impacts, the impact energy is not entirely converted into noise but also into a deformation, as a result of which a noise reduction is achieved.
  • the element 38 and the recess 39 serve as a deflector for the control element 5 in the event of incorrect operation.
  • FIG. 6 is a to figure 5 matching perspective view of the carrier 10 together with the control element 5 can be seen, with the control element 5 being located in the latching section R.
  • the stop areas G and deflection areas U are located. Exactly in these, for their high Areas G and U known to generate noise are accordingly provided with the soft side wall areas 9 .
  • the control element 5 then reaches the bearing section L, often with quite great force Figure 10a and 10b , The impact being cushioned there by the side wall area 9 consisting of a rubber-elastic material. In this stop area G, there is therefore less noise development.
  • the control element 5 moves through the clamping section S. In the deflection area U, the generation of noise is reduced by the soft side wall area 9 made of a rubber-elastic material.
  • the Figures 12a to 15b show a schematic comparison of the differently designed side wall areas and the different effect of these side wall areas when the control element 5 impacts with the same impact energy F.
  • the control element 5 can be seen before the impact on the hard side wall area 8.
  • the impact energy F depends on the speed, the impact angle and the force of the force accumulator acting on the control element 5 (ejection force accumulator 13).
  • the hard side wall area 8 does not yield or yields only minimally in the event of an impact, as a result of which the generation of noise is relatively large.
  • the control element 5 is moved with the same impact energy F in the direction of the soft side wall area 9 in the form of the support 11.
  • the impact energy F is at least partially absorbed by the soft side wall area 9 through its deformation.
  • the surface deforms in comparison to the unloaded state 13a .
  • the impact energy 5 is thus partially converted into a deformation of the soft sidewall area 9, which is why the generation of noise is lower.
  • the soft sidewall areas 9 according to Figures 14b and 15b When the control element 5 hits with the same impact energy F, a surface deformation takes place. This is achieved due to the geometric conditions (thin-walled side wall area 9 and recess 36 facing away from the control element). As in the Figures 12b to 15b clearly visible, with each variant of the soft side wall area 9 there is a greater penetration depth of the control element 5 into the link track surface than with the hard side wall area 8 .
  • the present invention is therefore about the noise damping in the heart curve (link track 6) of a touch-latch mechanism (drive device 1).
  • the control pin control element 5
  • all these points in the heart curve lead to more or less loud noises.
  • these points in the heart curve are executed by soft parts or damping elements (soft side wall areas 9).

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drawers Of Furniture (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
EP17187729.3A 2013-10-25 2014-10-22 Antriebsvorrichtung für ein bewegbares möbelteil Active EP3266347B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ATA824/2013A AT515040B1 (de) 2013-10-25 2013-10-25 Antriebsvorrichtung für ein bewegbares Möbelteil
EP14802585.1A EP3060084B1 (de) 2013-10-25 2014-10-22 Antriebsvorrichtung für ein bewegbares möbelteil
PCT/AT2014/000189 WO2015058222A1 (de) 2013-10-25 2014-10-22 Antriebsvorrichtung für ein bewegbares möbelteil

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP14802585.1A Division-Into EP3060084B1 (de) 2013-10-25 2014-10-22 Antriebsvorrichtung für ein bewegbares möbelteil
EP14802585.1A Division EP3060084B1 (de) 2013-10-25 2014-10-22 Antriebsvorrichtung für ein bewegbares möbelteil

Publications (2)

Publication Number Publication Date
EP3266347A1 EP3266347A1 (de) 2018-01-10
EP3266347B1 true EP3266347B1 (de) 2022-01-12

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ID=51951526

Family Applications (2)

Application Number Title Priority Date Filing Date
EP17187729.3A Active EP3266347B1 (de) 2013-10-25 2014-10-22 Antriebsvorrichtung für ein bewegbares möbelteil
EP14802585.1A Active EP3060084B1 (de) 2013-10-25 2014-10-22 Antriebsvorrichtung für ein bewegbares möbelteil

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP14802585.1A Active EP3060084B1 (de) 2013-10-25 2014-10-22 Antriebsvorrichtung für ein bewegbares möbelteil

Country Status (8)

Country Link
US (1) US10051962B2 (es)
EP (2) EP3266347B1 (es)
JP (2) JP6378331B2 (es)
CN (1) CN105658113B (es)
AT (1) AT515040B1 (es)
ES (2) ES2686643T3 (es)
MY (1) MY177425A (es)
WO (1) WO2015058222A1 (es)

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JP2018153683A (ja) 2018-10-04
EP3060084B1 (de) 2018-06-06
ES2911305T3 (es) 2022-05-18
JP6734888B2 (ja) 2020-08-05
JP6378331B2 (ja) 2018-08-22
EP3266347A1 (de) 2018-01-10
CN105658113B (zh) 2019-01-11
MY177425A (en) 2020-09-15
US20160227927A1 (en) 2016-08-11
JP2016533805A (ja) 2016-11-04
AT515040B1 (de) 2017-12-15
WO2015058222A1 (de) 2015-04-30
CN105658113A (zh) 2016-06-08
EP3060084A1 (de) 2016-08-31
ES2686643T3 (es) 2018-10-18
AT515040A1 (de) 2015-05-15
US10051962B2 (en) 2018-08-21

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