EP3484325B1 - Antriebsvorrichtung für ein bewegbares möbelteil und verfahren zum schliessen eines bewegbaren möbelteils - Google Patents

Antriebsvorrichtung für ein bewegbares möbelteil und verfahren zum schliessen eines bewegbaren möbelteils Download PDF

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Publication number
EP3484325B1
EP3484325B1 EP17745663.9A EP17745663A EP3484325B1 EP 3484325 B1 EP3484325 B1 EP 3484325B1 EP 17745663 A EP17745663 A EP 17745663A EP 3484325 B1 EP3484325 B1 EP 3484325B1
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EP
European Patent Office
Prior art keywords
driver
control element
furniture part
movable furniture
carriage
Prior art date
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Active
Application number
EP17745663.9A
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German (de)
English (en)
French (fr)
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EP3484325A1 (de
Inventor
Patrick Freiheit
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Paul Hettich GmbH and Co KG
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Paul Hettich GmbH and Co KG
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Publication of EP3484325A1 publication Critical patent/EP3484325A1/de
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B88/00—Drawers for tables, cabinets or like furniture; Guides for drawers
    • A47B88/40—Sliding drawers; Slides or guides therefor
    • A47B88/453—Actuated drawers
    • A47B88/46—Actuated drawers operated by mechanically-stored energy, e.g. by springs
    • A47B88/463—Actuated drawers operated by mechanically-stored energy, e.g. by springs self-opening

Definitions

  • the present invention relates to a drive device for a movable furniture part, in particular a drawer, with an ejector device which has a driver and a carriage which is preloaded by an energy storage device and which can be coupled to a movable furniture part via a driver Furniture part is accelerated from a pressurized or closed position a first distance over the slide and the driver in an opening direction and after the first distance the movable furniture part is movable a second distance on which the driver is movable relative to the slide, and a method for Closing a movable furniture part.
  • DE 10 2010 036 902 A1 discloses a drive device for ejecting a movable furniture part which can be unlocked by pushing or pulling.
  • the DE 20 2013 011 558 U1 discloses a device for opening a movable furniture part, in which a movable furniture part can be moved in the opening direction via an energy storage device via a pull-out element, a damping device being provided in addition to dampening the opening movement of the movable furniture part.
  • the movable furniture part is to be braked via the damping device so that it is not ejected at too high a speed and a hard stop of the movable furniture part is prevented when it is extended into the open position.
  • the speed of the movable furniture part depends on the loading condition, and especially with drawers, the difference between an empty run and a load can be up to 80 kg.
  • the springs of the energy store must be designed for the load condition so that sometimes high forces act when ejecting. In the solution shown, however, it is disadvantageous that the damper already acts during the ejection process and thus withdraws the energy from the spring accumulator. This means that the springs of the energy store have to bring even more energy into the system, which is disadvantageous for the user, since he has to use this energy again when closing the drawer in order to tension the energy store.
  • a sliding arrangement in which a sliding arrangement has a sliding piece which can be adjusted between an insertion position and an extension position by means of a spring element.
  • the sliding piece is spring-loaded on a first adjustment path adjusted and adjusted in a subsequent second adjustment path without spring action in a freewheel of the push-out arrangement.
  • a movable furniture part is accelerated via an ejector device a first distance via a slide and a driver in the opening direction, and after the first distance the movable furniture part is moved a second distance along which the driver can be moved relative to the slide.
  • the driver moves the slide a third distance against the force of the energy storage device and the driver is coupled to the slide via a control element along the third distance.
  • the control element can then be moved along a fourth path until a closed position is reached relative to the driver.
  • the movable furniture part can be accelerated a first distance in the opening direction via the ejection device in order to then be braked optionally over a second distance after this first distance, the braking forces being significantly lower than the forces in the ejection direction, since at the end of the second distance there is a Movement of the movable furniture part is to be allowed in the opening direction.
  • the tensioning process of the energy accumulator when the driver closes is carried out along the third path, which is followed by the fourth path.
  • the control element In the area of the fourth path, the control element can be locked in a controlled manner, which ensures low material stress and low locking noises.
  • the driver or the control element preferably has a guide track which is oriented at an angle to the effective direction of the energy storage device and in which a pin is guided.
  • the pin can then be moved in the guideway in order to move the control element slowly into the locking position.
  • the control element can preferably have two pins that engage in different guide tracks.
  • the ejection device preferably has a housing on which the carriage and the driver are guided. This leads to a particularly compact design of the ejection device.
  • the slide and the driver can be coupled via a control element that is movably mounted on the slide.
  • the control element can have a first pin which is guided in a guide track on the housing of the ejection device, and a second pin which engages in a track on the driver.
  • the driver can be coupled to the slide offset in the pull-in direction to a coupling of the driver to the slide in the pull-out direction.
  • a clamping area for the energy storage device is arranged offset in the opening or closing direction with respect to an ejection area of the ejector device during a closing movement.
  • the energy store is tensioned, for example, in a range between 80 to 40 mm in front of the closed position, while the movable furniture part is ejected from the closed position or from an overpressure position up to 40 or 60 mm in the opening direction.
  • the braking forces during the opening process are preferably dependent on the speed, and higher braking forces are generated at a higher speed of the movable furniture part than at a low speed of the movable furniture part.
  • the high speeds of the furniture part are braked more strongly than lower speeds, which avoids hard impact noises when moving the movable furniture part in the opening direction.
  • the drive device preferably also has a draw-in device by means of which the movable furniture part can be moved into the closed position in a draw-in area.
  • the retraction device can be positioned at a distance from the ejection device, for example on a pull-out guide.
  • a guide track for coupling to the control element which has two angled end sections and a middle section, is preferably formed on the driver.
  • the middle section is at least partially, preferably completely, inclined to the opening and closing direction, so that when the driver is moved relative to a control element guided in the path, frictional forces are applied and the control element is also controlled during a closing process depending on the movement of the driver.
  • the angle of inclination to the opening and closing direction of the web can for example be in a range between 5 ° and 25 °, in particular 8 ° to 17 °.
  • the movable furniture part is first moved with a driver in the closing direction, the driver being moved together with a movable control element which is coupled to an energy store.
  • the control element is moved adjacent to a latching receptacle and then the driver is decoupled from the control element in the effective direction of the energy storage device, the control element being moved at an angle to the effective direction of the energy storage mechanism through a guide track until shortly before a latching position. Then the guidance of the control element through the guideway is released and the control element is locked.
  • the control element is guided over a guideway which extends at an angle to the effective direction of the energy store.
  • the speed of the locking process is thus also determined via the coupling of the control element to the guide track.
  • the guide track Only shortly before reaching the latching position does the guide track have an angled end section or a release section so that the control element can then be pulled into the latching position via the force storage mechanism. Since this last distance is comparatively short, for example less than 2mm, in particular less than 1.5mm, there is only a brief acceleration of the control element and thus only low latching noises and less material stress.
  • the control element is preferably moved essentially at right angles to the effective direction of the energy storage device on a slide.
  • a first pin on the control element can engage in the guide track on the driver and a second pin can engage in a guide track of an ejector device.
  • the guide track on the driver can thus slow down a movement of the pin on the guide track of the ejector device.
  • a piece of furniture 1 comprises an in Figure 1 schematically illustrated body 2 on which one or more drawers can be movably mounted as movable furniture parts 3. Each drawer is guided on opposite sides over a pull-out guide 5, the pull-out guide 5 being fixed to a side wall of the body 2 via a bracket 9 and the drawer 3 being fixed to a movable running rail of the pull-out guide 5.
  • a front panel 4 of the drawer is a short distance from the body 2, for example between 2 mm and 5 mm, in order to be pushed slightly further into the body 2 from this closed position into an overpressing position in order to unlock an ejector 6.
  • each ejection device 6 can thus be supported on the activator 7 in order to eject the drawer as the movable furniture part 3. It is of course also possible to arrange the ejector 6 stationary on the body 2 and the activator 7 on the drawer. In addition, the number and arrangement of the ejection devices 6 on the movable furniture part 3 can be varied.
  • Each pull-out guide 5 can be coupled to a self-closing mechanism that pulls a movable running rail of the pull-out guide 5 in a draw-in area in the closing direction and optionally brakes it with a damper.
  • a pull-out guide 5 with a self-closing mechanism is for example in the documents DE 10 2011 053 840 A1 or DE 10 2011 0544 441 A1 disclosed, to which reference is made.
  • FIG. 3 the ejection device 6 is shown, which is arranged in a housing 10.
  • a guide 11 in the form of a web is provided on a longitudinal edge of the housing 10, on which a driver 12 is movably mounted.
  • the driver 12 is connected to a coupling element 13 which forms a contact surface for the activator 7. Since the coupling element 13 has a magnet, both tensile and compressive forces can be transmitted between the driver 12 and the activator 7.
  • an adjustment mechanism 15 is provided, by means of which the position of the coupling element 13 relative to the driver 12 can be adjusted.
  • a slide 30 which is slidably mounted in a receptacle 20 in the longitudinal direction of the housing 10.
  • a holder 21 on one end face in order to fix one end of an energy store in the form of at least one spring 22, in particular a tension spring.
  • Two springs 22 are provided, each of which is arranged in a spring receptacle 31 on the slide 30.
  • An opposite end of the spring 22 is fixed to a spring holder 32 on the slide 30, so that the slide 30 is pretensioned on the housing 10 in the opening direction.
  • the number of springs 22 can be selected depending on the intended use of the drive device.
  • a receptacle 33 for guiding a control element 40 is also provided on the slide 30.
  • Side walls 38 which guide the control element 40 essentially perpendicular to the opening direction, are arranged on the receptacle 33.
  • a receptacle 37 is also provided on a side wall 38, on which a protruding web 43 of the control element 40 can be passed in order to be able to insert the control element 40 into the receptacle 33.
  • the control element 40 is designed in the form of a plate and has protruding sliding elements 44 which rest on the side walls 38 of the receptacle 33.
  • the control element 40 comprises a first pin 41 which is guided in a guide track 17 on the housing 10. On the control element 40 is also a a second pin 42 is provided which is guided on the driver 12. For this purpose, a guide track 16 is formed on the driver 12.
  • a cam guide 34 by means of which a gearwheel 36 is guided, is also provided on the slide 30.
  • the gear 36 engages with a locking projection 35 in the cam guide 34 and is part of a backstop.
  • a rack 19 is formed on the housing 10, as shown in the detailed view of FIG Figure 5 is recognizable.
  • the gear 36 is guided with a pin in a loop-shaped guide track 18 of the housing 10, a section of the guide track 18 running in the tensioning direction past the rack 19, while a section for an opening movement guides the gear 36 at a distance from the rack 19. If a tensioning process of the ejector device 6 is interrupted, the toothed wheel 36 engages in the toothed rack 19 and thus prevents the movable furniture part from being ejected.
  • Such a backstop is for example in the DE 10 2016 107 918 described. Such a backstop is advantageous for the present ejection device, but can optionally also be omitted.
  • a slide 50 is also provided on the housing 10, which is inserted in a slide mount 26 ( Figure 5 ) is held displaceably on the housing 10.
  • a box-shaped section 55 engages in the slide receptacle 26, while a web 56 is received on an end section 27 of the housing 10.
  • a bearing 52 for a rotatable switching element 60 is formed, which has a lever arm on which a pressure piece 62 is provided at the end.
  • An elongated recess 61 is provided on the axis of rotation of the switching element 60, into which a web 66 of a rotary damper 65 engages, which is coupled to the switching element 60 in a rotationally fixed manner.
  • the rotary damper 65 is held on the slide 50 via an arm 67, so that when the switching element 60 rotates, the rotary damper 65 is actuated and a braking effect is generated.
  • the rotatable switching element 60 also has a protruding arm 63 which cooperates with stops on the slide 50 in order to limit the rotary movement of the switching element 60.
  • the slide 50 is biased into an initial position via a spring 68.
  • the spring 68 is stored in a spring receptacle 69 on the slide 50 ( Figure 4B ), the spring 68 resting on one end face against the slide 50 and on the opposite side against a wall of the housing 10.
  • the spring 68 is designed as a compression spring and thus biases the slide 50 in the opening direction.
  • a bow spring 64 which biases the switching element 60 into a first position, is also mounted on the slide 50. One end of the bow spring 64 rests on the arm 63 and is supported on the slide 50 at the opposite end.
  • a web 53 is also formed on the slide 50, on which a part 51 of a latching receptacle for the pin 41 of the control element 40 is provided.
  • the part 51 of the locking receptacle is designed as a projection.
  • a locking lug 54 is also provided on the web 53, which can ensure that the slide 50 is latched on the housing 10.
  • a control rocker 70 is also shown, which is used to operate the switching element 60.
  • the control rocker 70 is rotatably mounted about an axis of rotation 71 which is inserted into a bearing receptacle 74 on the housing 10.
  • the control rocker 70 has a boom 72 which acts on the switching element 60 in order to pivot it.
  • a guide cam 73 is provided on the control rocker 70, which cooperates with the driver 12. When the driver 12 is moved along the housing 10, the driver 12 can pivot the control rocker 70 about the axis of rotation 71 and thus actuate the switching element 60.
  • a cam guide 75 for the guide cam 73 is formed on the driver 12 in order to actuate the switching element 60 only in a certain position of the driver 12.
  • FIG. 5 the housing 10 is shown without the cover 14 and the other components.
  • a guide track 17 for the first pin 41 of the control element 40 is formed on the housing 10.
  • the guide track 17 is designed in the shape of a loop.
  • a first part 23 of a latching receptacle is provided on the guide track 17, on which the pin 41 for latching the ejection device 6 can be placed.
  • the second part 51 of the latching receptacle is formed on the slide 50. When the second part 51 of the latching receptacle is arranged adjacent to the first part 23 of the latching receptacle, the latching receptacle is in a closed position and the pin 41 can be placed there in order to lock the ejector 6 in a closed position.
  • the second part 51 of the latching receptacle moves away from the first part 23, so that the latching receptacle is moved into the unlocking or release position and the pin 41 can no longer be stored in the locking receptacle.
  • a latching projection 25 is also formed on the housing 10 in the area of the guide track 17, which interacts with the latching lug 54 on the slide 50 in order to be able to latch the slide 50 in an unlocked or released position for the control element 40.
  • FIG Figures 6 to 13 each showing two sectional views through the ejection device 6, some of which are arranged in different planes in order to better follow the position of the pins 41 and 42 in the area of the driver 12 and the guide track 17.
  • the ejector 6 is in a closed position.
  • the pin 41 of the control element 40 is located in the latching receptacle which is formed by the first part 23 on the housing 10 and the second part 51 on the slide 50.
  • the latching receptacle is in the closed position, and the ejection device 6 is latched against the force of the springs 22 via the pin 41 and the latching receptacle.
  • the second pin 42 of the control element is located at an angled end of the guide track 16 on the driver 12.
  • the movable furniture part 3 or the drawer is moved from the closed position into an overpressed position, as shown in FIG Figures 7A and 7B is shown.
  • the control element 40 is pressed in against the force of the springs 22, which are held on the slide 30, the movable furniture part acting on the control element 40 via the driver 12 and the pin 42.
  • the first pin 41 presses against the pressure piece 62 on the switching element 60, which moves the slide 50 against the force of the spring 68 relative to the housing 10.
  • the second part 51 of the locking receptacle is also displaced relative to the first part 23.
  • the pin 41 can now pass through the gap between the first part 23 of the locking receptacle and the second part 51, as shown in FIG Figures 8A and 8B is shown.
  • the driver 12 is coupled to the control element 40 in the pull-out direction via the second pin 42, so that the movable furniture part is ejected by the driver 12.
  • Of the Slide 50 is pressed by spring 68 in the opening direction until latching lug 54 rests against latching projection 25 of housing 10.
  • the locking receptacle remains in a release position. The distance between the two parts 23 and 51 of the locking receptacle is so great that the pin 41 can pass between them.
  • the carriage 30 with the control element 40, and thereby also the driver 12 with the movable furniture part is moved further in the opening direction until the in Figure 9 position shown is reached.
  • the first pin 41 on the control element 40 runs against a bevel 57 on the web 53 and thus releases the locking lug 54 from the locking projection 25.
  • the slide 50 can be moved further in the opening direction by the force of the spring 68 to close the locking receptacle close.
  • the movable furniture part 3 is now moved further in the opening direction until the first pin 41 strikes a run-on bevel 45 of the guide track 17 in order to move the control element 40 on the slide 30.
  • the second pin 42 moves out of the angled end section of the guide track 16 and can thus be moved along the middle section of the guide track 16, which is aligned slightly inclined to the closing and opening direction, in order to keep the driver 12 along the guide 11 on the Moving housing.
  • FIG. 10A and 10B a position of the ejection device 6 is shown in which the movable furniture part 3 can move away from the driver 12.
  • the second pin 42 has been moved to the angled end section of the guide track 16, and the first pin 41 is located at a pointed end of the guide track 17.
  • the activator In order to bring the movable furniture part back into a closed position, the activator is moved against the driver 12, which is coupled to the control element 40 via the second pin 42.
  • the control element 40 thus moves together with the slide 30 in the closing direction and thereby tensions the springs 22.
  • the pin 41 moves in the process Figures 10 and 11 on the left side of the loop-shaped guide track 17.
  • the backstop is also activated with the gearwheel 36, which is moved along the rack 19 on the housing. If the tensioning process is interrupted, the gearwheel 36 of the backstop secures the previously tensioned position of the slide 30.
  • the springs 22 are tensioned via the slide 30, and on the other hand an edge of the driver 12 with the cam guide 75 comes against the guide cam 73 on the control rocker 70.
  • the control rocker 70 is pivoted about the axis of rotation 71 and presses with the arm 72 against the switching element 60, which is pivoted from the first position, in which the ejection device can be unlocked, into a second position, in which the ejection device 6 is unlocked is not allowed.
  • the ejector 6 cannot be triggered because the switching element 60, which can establish a connection between the pin 41 and the slide 50, is arranged in the pivoted position.
  • the second pin 42 also comes out of the angled end section of the guide track 16 and can be moved along the driver 12.
  • a self-closing mechanism can now take effect, which is arranged, for example, on the pull-out guide.
  • Such a self-closing pulls the movable furniture part into a closed position, a damper preferably being provided which brakes the closing movement of the movable furniture part.
  • the user no longer needs to apply any actuating force, but can leave the control of the movable furniture part to the self-closing mechanism.
  • the cam guide 75 arrives with a recess in the area of the guide cam 73 so that the control rocker 70 can be pivoted by the force of the bow spring 64, since the switching element 60 is controlled by the force the bow spring 64 is pivoted back into the first position, in which an unlocking of the ejector 6 is made possible.
  • the second pin 42 is then located at the angled end section of the guide track 16, and the in Figures 6A and 6B shown closed position reached.
  • the pin 41 does not lie against an end face of the pressure piece 62, but on the side of the pressure piece 62, so that no forces can be applied to the switching element 60 by the pin 41 in the closing direction. If the movable furniture part is released in the overpressure position, the springs 22 ensure that the driver 12 and the control element 40 are moved in the opening direction relative to the housing 10 until the first pin 41 is placed on the latching receptacle, which is supported by the first part 23 is formed on the housing 10 and the second part 51 on the slide 50, and in the Figures 6A and 6B position shown is reached.
  • the driver 12 When the pin 41 is placed on the latching receptacle, the driver 12 simultaneously moves along the housing 10, so that the guide cam 73 is released so far via the cam guide 75 that the switching element 60 is moved from the second position to the first position can be pivoted. An opening process can therefore take place again immediately after the closed position has been reached. If it is desired that a new opening can only be carried out after a certain period of time, the pivoting back movement of the switching element 60 can be slowed down by the rotary damper 65, depending on the period of time to be waited for. Such a time delay is only optional, however, since immediate opening is possible even after the movable furniture part has been pushed into the pushed-over position as soon as the movable furniture part has reached the closed position.
  • FIG 14 a distance-time diagram is shown in which a closing process is shown in which no overpressure position is reached.
  • the movable furniture part 3 is moved in the closing direction, and the energy storage device is tensioned on the slide 30 in a first section.
  • the self-retraction can take over and the movement of the movable furniture part 3 in the closing direction is braked, as is the curve in the area of the intake indicates.
  • the movable furniture part 3 then reaches the closed position, and there is no longer any movement until the user moves the movable furniture part 3 into the overpressing position and thus unlocks the ejector device 6.
  • the closing process can also take place in an overpressure position, the movable furniture part 3 being moved in the closing direction both in the clamping area and in the draw-in area, namely beyond the closed position into the overpressure position.
  • the movable furniture part In the overpressed position, the movable furniture part can be held for any length of time until it is released by the user and then moved into the closed position. As soon as the movable furniture part 3 is arranged in the closed position, it can be opened again.
  • the switching element 60 is rotatably mounted. It is also possible to provide a displaceably mounted switching element 60 in a mechanism for the overpressure protection.
  • Figure 16 the ejector 6 is shown in a position during the opening movement in which the driver 12 has already moved in the opening direction over part of the distance on the housing 10 and the carriage 30 is arranged on the housing 10 shortly before reaching its end position.
  • the first pin 41 is just moving against the run-up bevel 45 on the guide track 17, so that the control element 40 not only with the slide 30 in the opening direction, but also in the Figure 16 is moved slightly to the right, so that the second pin 42 is moved out of the angled end portion of the guide track 16 and thus a coupling between the control element 40 and the driver 12 is unlocked.
  • the second pin 42 moves along the guide track 16, which is aligned slightly inclined to the opening and closing direction, for example at an angle between 2 ° and 20 °, in particular 5 ° to 15 °, so that the control element 40 at the further opening movement in Figure 17 is also moved to the right. Frictional forces act via the control element 40 and the pins 41 and 42, which slightly brake the movement of the driver 12.
  • the slide 30 is only moved slightly in the opening direction in this area, but it can also be arranged stationary.
  • the driver 12 moves together with the movable furniture part 3 further in the opening direction.
  • the second pin 42 has reached the second angled end section of the guide track 16, so that the movable furniture part 3 can now be decoupled from the driver 12, similar to what is done with reference to FIG Figure 10 has been described.
  • the driver 12 can also be moved further along the housing 10 in the opening direction up to a stop.
  • the pin 42 is then attached to the in Figure 18 upper angled end portion of the guide track 16 held in order to move the driver 12 together with the slide 30 in the closing direction and to tension the springs 22.
  • FIG 19 a speed-path diagram for a heavy movable furniture part 3 is shown.
  • the movable furniture part 3 is brought from the closed position into an overpressure position so that the ejection device 6 can eject the movable furniture part.
  • the movable furniture part 3 is accelerated via the ejection device 6 from the overpressure position a first distance to the point S 1 .
  • the movable furniture part is heavy, so that the acceleration is low.
  • the position shown no longer accelerates the movable furniture part, but only slows it down slightly due to the frictional forces when moving the movable furniture part and the driver 12 in the opening direction until the in Figure 18 position shown is reached, which corresponds to point S 2 in Figure 19 corresponds.
  • the dashed line along the second distance between S 1 and S 2 shows the difference when no braking forces act on the movable furniture part 3 via the driver 12.
  • the movable furniture part would be only slightly faster at the end of the path S 2 , with a decrease in speed also taking place due to the remaining frictional forces on the pull-out guide 5 or on other components that act on the movable furniture part 3.
  • FIG 20 a speed-path diagram for a light movable furniture part 3 is shown.
  • the movable furniture part 3 is initially accelerated in the opening direction from the overpressure position or, in the case of an alternative unlocking, from the closed position until the speed V max is reached and the in Figure 16 position shown is reached.
  • the ejection device After the first distance has been reached, the ejection device generates a certain braking effect on the driver 12 via frictional forces, the difference in the final speed at the end of the second distance (S 2 ) being greater than in FIG Figure 19 , since the movable furniture part 3 is lighter.
  • the dashed line is in figure 20th a non-braked movable furniture part 3 is shown, while the continuous line between S 1 and S 2 shows the braking effect of the driver 12.
  • dampers can alternatively or additionally also be provided, for example air dampers, fluid dampers, linear dampers or rotary dampers.
  • the damping force is preferably speed-dependent, that is to say the higher the speed of the movable furniture part at the end of the first path, the higher the damping forces become in order to slow down the ejection speed more strongly at higher speeds.
  • the drive device is shown in an open position in which the springs 22 of the energy store are relaxed.
  • the control element 40 is with the pin 41 in the position that is in the Figures 10A and 10B is shown, and the pin 42 is on the side facing away from the coupling element 13 on the angled end portion of the guide track 16. If the movable furniture part is now moved in the closing direction, the driver 12 is linear via the coupling element 13 against the force of the springs 22 of the energy storage device emotional.
  • the control element only moves in the direction of action of the springs 22 due to the linear guide track 17, as is also the case in FIG Figures 11A and 11B is shown.
  • the driver 12 has reached a position in which the springs 22 of the energy accumulator are essentially tensioned and the control element moves the pin 41 perpendicular to the direction of action of the springs 22 through a curved section on the guide track 17, so that the pin 42 on the guide track 16 is moved out of the angled end portion of the guide track 16.
  • FIG Figures 23A to 23C The position at which the pin 42 was moved out of the angled end portion of the guide track 16 is shown in FIG Figures 23A to 23C shown.
  • the driver 12 is now no longer acted upon by the springs 22 of the energy store, but can be moved in the closing direction independently of this, in particular a self-retraction can be effective to move the driver 12 over a distance into the closed position.
  • the Fedem 22 still act on the carriage 30, which holds the control element 40.
  • the force of the springs 22 pulls the pin 41 in the guide track 17 into a latching position which is still a few millimeters away. If the carriage 30 with the control element 40 were to be freely movable, the springs 22 could accelerate the pin 41 strongly, which would lead to a high material load and latching noises.
  • the pin 41 is only moved slowly in the direction of the latching position, since the pin 42 is held on the control element 40 in the guide track 16, which is aligned at a slight angle to the direction of action of the springs 22.
  • a movement of the control element 40 perpendicular to the direction of action of the springs 22 is permitted.
  • the angle of inclination of the guide track 16 relative to the direction of action of the springs 22 can be in a range between 1 ° to 10 °, in particular 2 ° to 8 °.
  • the pin 41 on the control element can slide along the incline on the first part 23 of the locking receptacle into the locking position, this path being significantly shorter than the path of the pin 41 from the FIG Figure 23C position shown after decoupling of the pin 42 from the movement of the driver 12 in the closing direction.
  • the movement of the control element 40 into the detent position is thus positively controlled and slowly carried out by the guide track 16, and the pin 42 on the guide track 16 is only released shortly before the detent position is reached and enables the pin 41 to be accelerated to the detent position. Since the path of the pin 41 after the release is short, for example less than 1.5 mm, there are hardly any latching noises and the material stress is also low. An opening process can then be initiated from the latching position, as described above.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drawers Of Furniture (AREA)
EP17745663.9A 2016-07-15 2017-07-13 Antriebsvorrichtung für ein bewegbares möbelteil und verfahren zum schliessen eines bewegbaren möbelteils Active EP3484325B1 (de)

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CN109475231B (zh) 2021-03-23
WO2018011379A1 (de) 2018-01-18
CN109475230A (zh) 2019-03-15
EP3484325A1 (de) 2019-05-22
EP3484326B1 (de) 2020-09-02
CN109475230B (zh) 2021-08-10
ES2829297T3 (es) 2021-05-31
CN109475231A (zh) 2019-03-15
DE102016123481A1 (de) 2018-01-18
DE102016123482A1 (de) 2018-01-18
EP3484326A1 (de) 2019-05-22
WO2018011380A1 (de) 2018-01-18
ES2829348T3 (es) 2021-05-31

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