EP3410895B1 - Electrically adjustable piece of furniture - Google Patents
Electrically adjustable piece of furniture Download PDFInfo
- Publication number
- EP3410895B1 EP3410895B1 EP17708153.6A EP17708153A EP3410895B1 EP 3410895 B1 EP3410895 B1 EP 3410895B1 EP 17708153 A EP17708153 A EP 17708153A EP 3410895 B1 EP3410895 B1 EP 3410895B1
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- European Patent Office
- Prior art keywords
- furniture
- inclination
- piece
- sensor
- sensor device
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- 230000001360 synchronised effect Effects 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 3
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- 238000011156 evaluation Methods 0.000 description 2
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Images
Classifications
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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
- A47B9/00—Tables with tops of variable height
- A47B9/16—Tables with tops of variable height with means for, or adapted for, inclining the legs of the table for varying the height of the top, e.g. with adjustable cross legs
-
- 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
- A47B9/00—Tables with tops of variable height
-
- 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
- A47B17/00—Writing-tables
- A47B17/02—Writing-tables with vertically-adjustable parts
-
- 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
- A47B21/00—Tables or desks for office equipment, e.g. typewriters, keyboards
- A47B21/02—Tables or desks for office equipment, e.g. typewriters, keyboards with vertical adjustable parts
-
- 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
- A47B27/00—Drawing desks or tables; Carriers for drawing-boards
- A47B27/02—Adjustable drawing tables without balancing means
-
- 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
- A47B9/00—Tables with tops of variable height
- A47B9/04—Tables with tops of variable height with vertical spindle
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C1/00—Chairs adapted for special purposes
- A47C1/02—Reclining or easy chairs
- A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
- A47C1/024—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination
- A47C1/0246—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination by means of screw-and-nut mechanism
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C17/00—Sofas; Couches; Beds
- A47C17/04—Seating furniture, e.g. sofas, couches, settees, or the like, with movable parts changeable to beds; Chair beds
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C19/00—Bedsteads
- A47C19/02—Parts or details of bedsteads not fully covered in a single one of the following subgroups, e.g. bed rails, post rails
- A47C19/021—Bedstead frames
- A47C19/024—Legs
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C20/00—Head -, foot -, or like rests for beds, sofas or the like
- A47C20/04—Head -, foot -, or like rests for beds, sofas or the like with adjustable inclination
- A47C20/041—Head -, foot -, or like rests for beds, sofas or the like with adjustable inclination by electric motors
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
- A47C3/20—Chairs or stools with vertically-adjustable seats
- A47C3/24—Chairs or stools with vertically-adjustable seats with vertical spindle
-
- 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
- A47B2200/00—General construction of tables or desks
- A47B2200/0035—Tables or desks with features relating to adjustability or folding
- A47B2200/005—Leg adjustment
- A47B2200/0056—Leg adjustment with a motor, e.g. an electric motor
-
- 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
- A47B2200/00—General construction of tables or desks
- A47B2200/0035—Tables or desks with features relating to adjustability or folding
- A47B2200/005—Leg adjustment
- A47B2200/0056—Leg adjustment with a motor, e.g. an electric motor
- A47B2200/0057—Leg adjustment with a motor, e.g. an electric motor situated under the worktop
-
- 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
- A47B2200/00—General construction of tables or desks
- A47B2200/0035—Tables or desks with features relating to adjustability or folding
- A47B2200/005—Leg adjustment
- A47B2200/0062—Electronically user-adaptable, height-adjustable desk or table
Definitions
- the invention relates to an electrically adjustable piece of furniture with at least one electric drive motor for adjusting at least one fiberverstellabiteses relative to a furniture carrier section.
- Pieces of furniture such as office tables, which have a height-adjustable, resting on support feet table top, being integrated in the table feet electric motors for motorized height adjustment of the table top.
- Such a piece of furniture is for example in the WO 2010/112574 A2 described.
- the electric motors are driven in the table legs via a manual actuator, for example via a switch in two directions adjustable for raising and lowering the table top.
- a manual actuator for example via a switch in two directions adjustable for raising and lowering the table top.
- the electric motors are active and cause the desired adjustment movement of the table top up or down.
- U1 is a furniture with electric motor drive units for adjustment movable components of the furniture described.
- Each electromotive adjusting device is associated with a control unit for processing signals of a tilt sensor, with which the current inclination of a furniture component is determined. If the inclination of the furniture component exceeds a defined value, a signal for switching off the respective drive motor or for reversing the drive motor of the electromotive adjustment device is generated.
- the table top rests on a support member and is adjustable in height relative to the support member.
- the inclination of the table top can be adjusted.
- the adjustability of the tabletop depends on sensor signals, using different sensor types such as an accelerometer. The sensors can be used to detect the activity of a person working on the table.
- the invention has for its object to simplify the control of an electrically adjustable piece of furniture with accurate setting of a desired position.
- the electrically adjustable piece of furniture has at least one monverstellabites, which can be adjusted by means of at least one drive motor relative to a furniture support portion of the piece of furniture.
- the piece of furniture is, for example, a table in which the table leg or table legs form the furniture carrier section and the table top is the furniture adjusting section, which is adjustable in height and / or inclination relative to the table leg (s).
- the electromotive adjustable hairverstellabites and have a furniture support section, for example, chairs, armchairs, sofas, beds or the like.
- the drive of the drive unit via a sensor device for detecting the inclination or the change in inclination of petverstellabiteses.
- the signals of the sensor device can be fed to a controller assigned to the drive motor in order to drive the drive motor in accordance with the signals of the sensor device.
- the sensor device makes it possible to trigger the activation of the drive motor or the drive motors manually by manually tilting the paperverstellabites, for example, the table top against a starting position, for example by gripping the edge of the table and pushing up or down the table edge.
- the inclination or tilting of the furniture adjustment section produced in this way is detected by the sensor device and leads to a corresponding activation of the drive motor (s).
- the electric drive motors are preferably used for direct adjustment of the fiberverstellabitess.
- embodiments with hydraulic drive units are possible in which the drive motors form the hydraulic pump motors.
- the drive motors preferably belong to the same drive category, for example, for the electrical adjustment of the binverstellabites or as a hydraulic pump motor.
- versions with different drive categories are possible, for example, a combination of electric drive motor for adjusting and hydraulic pump motor.
- the direction of the change in inclination is converted into a rectified adjusting movement of the waverstellabiteses, for example in the case of a height-adjustable table pushing up the table edge in an adjusting movement of the table top up and depression of the table edge in an adjusting movement of the table top down.
- the triggering or activation of the drive is brought about via a defined actuation or movement or gesture.
- the triggering of the activation takes place, for example, by carrying out a defined actuation of the furniture adjustment section for a defined period of time, for example by pressing the edge of the table one or more times upwards or downwards.
- the triggering of the activation and / or the change in position of the furniture adjustment section can additionally or in an alternative embodiment also be effected by means of an actuation device, such as e.g. a switch or a push or turn knob be brought about.
- an actuation device such as e.g. a switch or a push or turn knob be brought about.
- the sensor device for detecting the inclination or the inclination change can also be used for collision detection be, as in a collision of cottonverstellab steeles with an object, the inclination of the adjustment changes, which can be detected by sensors and used to control the or the electric drive motors. If an unexpected inclination is detected during an adjustment movement of the furniture adjustment section, this indicates a collision, whereupon control signals for controlling the drive motor (s) are generated in the controller and the drive motors are stopped and optionally actuated in the opposite direction.
- a multi-axis sensor If a multi-axis sensor is used, detection in several axes or multiple directions of movement is also possible, for example in tables a changed angular position about different angular axes, e.g. at angle desks.
- the embodiment of the invention relates to an electrically adjustable piece of furniture with at least two electric drive motors, which are controlled independently of each other.
- This also includes a synchronous control of the drive motors.
- the independent control also allows a different operation of the drive motors, for example, for the purpose of height compensation on uneven ground, for example, in the case of a table to set a horizontal, standing in the water table top.
- the actual inclination of the waverstellabiteses is set in this case to a nominal inclination.
- the height of the furniture adjustment section can be determined by a distance sensor that measures the distance to the floor, to a reference or to the ceiling.
- the independent controllability of the electric drive motors allows a simple structure, in particular in the way that only a part of the electric drive motors must be supplied with sensor signals. Also in this simplified embodiment, a desired inclination position of the adjustable linenverstellabitess relative to the furniture carrier section can be maintained.
- the electric drive motor which is provided with a sensor device or is controlled in dependence on sensor signals of the sensor device, automatically performs a compensation movement independently of the further drive motor without sensor signals.
- an inclination or change in inclination of the furniture adjusting section is already detected during the movement of the furniture adjusting section and compensated by a corresponding control of the associated electric drive motor.
- each electrical drive motor is assigned its own, separate controller, as well as versions with a common controller for at least two electric drive motors. Both in the version with separate controllers and in the version with a common controller, an independent control of the various electric drive motors is possible.
- the position change during the coverage of the distance sensor is calculated by the gesture via the evaluation of the signals of the gravitational sensor.
- sensors are used with multiple axes, so it is also possible, for. B. To keep tables with three or four legs flat in both axes.
- drives are synchronized via an evaluation of the inclination or inclination change, then drive solutions are possible in which it is no longer necessary for the drives to communicate via a common controller or to learn about the activity of the other drive in another way, eg via a bus system.
- Each drive is equipped with sensors for inclination or inclination change detection and independently ensures that eg a table top is held straight. It may be sufficient if only one of the drives has a device with which the user initiates the desired adjustment, while the other drives follow automatically.
- the sensor in the sensor device for detecting the inclination or inclination change is designed, for example, as a gyro sensor, via which a rotation or angular change of the furniture adjustment section can be determined. Additionally or alternatively, the sensor may also be designed as a gravitational sensor, via which the absolute inclination of the paperverstellabiteses can be determined. By integrating the rotation of the paperverstellabitess over several successive times can be determined according to the inclination of paperverstellabites. There are both versions into consideration, in which the sensor device comprises only one sensor for tilt determination as well as versions with a plurality of sensors for tilt detection, which are designed either the same or different.
- the sensor device comprises a sensor for detecting a non-contact control gesture, via which the drive motor can be controlled.
- the non-contact sensor can also be used for distance measurement between the powderverstellabites and a reference point.
- the reference point is used to measure either the absolute height or the relative height of the paperverstellabitess.
- the detection of the control gestures that occur in the detection range of the sensor device by a user with a body part For example, the hand or the foot or an object are used, on the one hand for switching on and / or switching off the electric drive motor and on the other to control the drive motor in a desired direction of rotation.
- the drive speed of the drive motor can be controlled via a corresponding gesture. This makes it possible, on the one hand, to activate the drive motor with a defined control gesture, so that an inadvertent gesturing in the detection range of the sensor device does not lead to a driving of the drive motor or motors.
- the manner of actuation of the drive motor or motors can be controlled by gestures, ie the direction in which the waverstellabites is to be moved, and optionally also the Verstellieri.
- the sensor device is part of a control device with a controller in which the sensor signals of the sensor device are processed and control signals for driving the drive motor or motors are generated.
- the control device can be integrated in the drive motor or arranged outside the drive motor.
- Fig. 1 and 2 is shown as an exemplary embodiment of a piece of furniture a table 1 with a table top 3 on a table leg 2.
- the table leg 2 forms a furniture carrier section, the table top 3 a bacteriaverstellabites, wherein the table top 3 is arranged vertically adjustable relative to the table leg 2.
- the height adjustment is carried out by means of an electric drive motor 4, which is arranged on the underside of the table top 3 on a guide part 3a, which protrudes into the table leg 2 and is displaceably guided in the table leg 2.
- the drive motor 4 sets a shaft 5 in rotation, which meshes with an associated mating thread in the table leg, wherein the shaft 5 is axially fixedly connected to the guide part 3a, whereby upon rotation of the shaft 5, the desired height adjustment of the table top 3 is effected.
- the control device 6 comprises a controller and a sensor device 7, whose sensor signals are processed in the controller to control signals, with which the drive motor 4 is driven.
- the electric drive motor 4 can be activated in both directions of rotation to effect a corresponding lifting movement of the table top 3 upwards or downwards.
- the sensor device 7 comprises a non-contact sensor, for example an optical sensor, an ultrasonic sensor, an infrared sensor or a capacitive sensor, it being possible for a plurality of sensors of the same or also different types to be combined.
- a non-contact sensor for example an optical sensor, an ultrasonic sensor, an infrared sensor or a capacitive sensor, it being possible for a plurality of sensors of the same or also different types to be combined.
- the Sensor device 7 as indicated by the arrow 8, the area above the table top 3 detected.
- the sensor of the sensor device 7 has a sensor-dependent and dependent on the installation location detection area, wherein a projecting into the detection area body part or object is detected, with which a control gesture can be exercised to control the drive motor.
- a control gesture for example, a movement is carried out upwards or downwards within the detection range of the sensor device 7, whereby the direction as well as the speed of the protruding body part or object is determined via a continuous distance measurement between the sensor device 7 and the body part or the object within the detection area can be.
- the control gesture is detected by the sensor device 7 in a contactless manner.
- the body part or the object can rest directly on the upper side of the table top 3, whereby in this case too there is a distance to the sensor device 7 which is located on the underside of the table top.
- the control gesture is performed at a distance from the top of the table top 3.
- the sensor device 7 can also be arranged on the upper side of the table and / or detect the area above the table top.
- the control device 6 To control the sensor, the control device 6 must first be activated by an activation gesture in order to enable the subsequent activation process.
- the activation or triggering of the drive becomes, for example brought about by the fact that the controlling body part or object is held at a defined distance and for a defined period of time to the sensor device 7.
- the activation can be visually displayed, eg by an LED, whereby the optical display goes out again after a defined time, if no further gestures follow the activation.
- the position change of the table top 3 can be made by means of a position change control gesture, in particular by an upward movement for raising the table top 3 and a downward movement for lowering the table top 3.
- the termination of the adjustment operation is preferably via a stop the control gesture achieved, for example by pulling the controlling body part out of the detection area.
- the non-contact sensor device 7 can also be used for distance measurement between the table top 3 and a reference projection 9 on the table leg 2.
- the reference projection 9 is formed as a transversely extending projection at the upper end of the table leg 2, which projects into the downward detection range of the sensor device 7.
- the distance between the table top 3 and the reference projection 9 can be used to determine a reference point serving as a reference, in particular a standard or desired height of the table top, against which the relative adjustments are performed.
- the distance measurement can take place via a second sensor device or a second sensor of the sensor device, so that, for example, the area above and below the table top can be detected.
- Fig. 3 an overall view of a table 1 is shown, which has two legs 2, which are common carrier of the table top 3.
- the carrier is in each case an electric drive motor 4, via which the respective guide member 3a relative to the receiving table leg 2 is height adjustable.
- the two electric drive motors 4 are both controlled by the control device 6, which includes a non-contact sensor device 7.
- the gesture control via the sensor device 7 is carried out as in the embodiment according to Fig. 1 and 2 via a manually carried out gesture in the detection area according to arrow 8 above the sensor device 7 and the top of the table top. 3
- the two electric drive motors 4 can be controlled via the common control device 6 in a synchronous manner.
- an independent control of the two electric drive motors 4 is possible. This makes it possible, for example, to set a nominal inclination of the table top 3, for example a horizontal alignment of the table top, despite uneven ground or defined desk tilt. If a plurality of sensors are arranged in the sensor device 7, correspondingly a plurality of degrees of freedom of movement of the table top 3 can be determined and set to desired desired values via the various drive motors.
- a long activation position for influencing a first direction of movement and a short activation position for influencing a second direction of movement are taken.
- the respective activation can be visually displayed, eg via a LED in different colors or flashing signs.
- the control device 6 comprises a controller 12 with a circuit board 10, which is the carrier of a microchip or microcontroller 13, and the sensor device 7 with the non-contact sensor, whose detection range according to the arrows 8 upwards and / or downwards (see Fig. 5 ).
- the sensor signals of the sensor device 7, which represent the distance to the gesture control hand or the foot or a user-guided object in the detection range of the sensor are processed in the controller 12, in which on the basis of the sensor signals control signals for controlling the or electric drive motors are generated.
- the sensor 7 can either be integrated into the controller or arranged outside the controller, but communicate therewith for transmitting the measured sensor signals.
- the arrangement outside and independent of the controller allows the positioning of the sensor in an optimal location for the operation.
- the connection between sensor and controller takes place via cable or via a radio link.
- Embodiments for determining the distance between the table top 3 and a fixed reference point are shown, wherein the distance determination takes place in a non-contact manner by means of the sensor device 7.
- the distance detection can also be combined with the gesture control; In this case, during the gesture control, the distance change is not detected by the distance sensor, but by the sensors included in the drive motors or calculated via the acceleration determined by an acceleration sensor or a gravitational sensor.
- Fig. 6 is analogous to the embodiment according to the Fig. 1 and 2 the distance between the sensor device 7 on the underside of the table top 3 and an underlying reference projection 9 on the table leg 2 determined in a non-contact manner.
- Fig. 7 the distance between the sensor device 7 and the bottom 15 is measured and used as a reference.
- Fig. 8 is the distance to the ceiling 16 of the room in which the table is 1, determined by the sensor device 7 and the distance 14 used as a reference.
- an opening is made in the tabletop 3, through which the detection area of the sensor device 7 extends on the underside of the tabletop 3.
- the sensor can also be integrated in the tabletop or arranged on the top of the table top.
- FIG. 9 Another embodiment is in Fig. 9 shown in which the table top 3 of the table 1 extends over the corner and the table top 3 is supported by a total of three legs 2.
- one fixedly connected to the table top 3, located on the underside of the table top guide member 3a is vertically adjustable via an electric drive motor relative to the associated table leg 2, so that a total of three drive motors are provided, which are independently controlled by a common control device 6 ,
- the control device 6 preferably comprises at least two individual sensors in a sensor device, via which, according to the arrows 17 and 18, a tilting or tilting of the table top 3 about two horizontally extending, lying in the plane of the table top 3 axes can be determined.
- the control device 6 has a sensor device with at least two sensors, which are designed to determine the inclination and / or the inclination or angle change of the table top.
- the sensors are gyroscopes and / or gravitational sensors, whereby the angle change or rotation speed of the table top 3 can be determined via the gyro sensors and the absolute inclination and acceleration of the table top 3 can be determined via the gravitational sensors. Over both sensor types, if a continuous measurement is carried out over time, the change in the inclination of the table top 3 can be determined. Also advantageous is the combination of gyro sensor and gravitational sensor to allow precise control of the situation.
- a collision detection can be carried out by interpreting the tabletop 3 when raising or lowering a suddenly occurring inclination change as a collision with an object, which leads to a stop of the adjusting movement of the table top 3 and possibly to a reversal of the adjusting movement in the opposite direction ,
- a motor-assisted raising or lowering movement of the table top can be generated.
- the raising or lowering of the table edge leads to a corresponding change in inclination of the table top 3, which sensory and processed in the control device for generating control signals for the drive motors.
- the drive motors are individually and independently controllable via the control device, which also includes a synchronous drive.
- a desired desk tilt of the table top 3 can optionally also be set.
- an activation cycle must be preceded by e.g. press the tabletop up or down once or several times within a defined period of time.
- the activation may be indicated by an audible or visual activation signal, whereupon the movement is initiated by raising or lowering the tabletop edge.
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- General Health & Medical Sciences (AREA)
- Nursing (AREA)
- Dentistry (AREA)
- Tables And Desks Characterized By Structural Shape (AREA)
Description
Die Erfindung bezieht sich auf ein elektrisch verstellbares Möbelstück mit mindestens einem elektrischen Antriebsmotor zum Verstellen mindestens eines Möbelverstellabschnittes gegenüber einem Möbelträgerabschnitt.The invention relates to an electrically adjustable piece of furniture with at least one electric drive motor for adjusting at least one Möbelverstellabschnittes relative to a furniture carrier section.
Bekannt sind Möbelstücke wie beispielsweise Bürotische, die eine höhenverstellbare, auf Trägerfüßen ruhende Tischplatte aufweisen, wobei in die Tischfüße Elektromotoren zur motorisch unterstützen Höhenverstellung der Tischplatte integriert sind. Ein derartiges Möbelstück wird beispielsweise in der
Üblicherweise werden die Elektromotoren in den Tischbeinen über eine manuelle Betätigungseinrichtung angesteuert, beispielsweise über einen in zwei Richtungen verstellbaren Schalter zum Hoch- und Herunterfahren der Tischplatte. Während oder nach Betätigung des Schalters durch den Benutzer sind die Elektromotoren aktiv und bewirken die gewünschte Verstellbewegung der Tischplatte nach oben oder unten.Usually, the electric motors are driven in the table legs via a manual actuator, for example via a switch in two directions adjustable for raising and lowering the table top. During or after actuation of the switch by the user, the electric motors are active and cause the desired adjustment movement of the table top up or down.
In der
Auch aus der
In der
In der
Der Erfindung liegt die Aufgabe zugrunde, die Ansteuerung eines elektrisch verstellbaren Möbelstücks bei genauer Einstellung einer Solllage zu vereinfachen.The invention has for its object to simplify the control of an electrically adjustable piece of furniture with accurate setting of a desired position.
Diese Aufgabe wird erfindungsgemäß mit den Merkmalen der unabhängigen Ansprüche gelöst. Die abhängigen Ansprüche geben zweckmäßige Weiterbildungen an.This object is achieved with the features of the independent claims. The dependent claims indicate expedient developments.
Das elektrisch verstellbare Möbelstück weist mindestens einen Möbelverstellabschnitt auf, der mithilfe mindestens eines Antriebsmotors gegenüber einem Möbelträgerabschnitt des Möbelstücks verstellt werden kann. Bei dem Möbelstück handelt es sich beispielsweise um einen Tisch, bei dem das Tischbein oder die Tischbeine den Möbelträgerabschnitt bilden und die Tischplatte den Möbelverstellabschnitt, der gegenüber dem oder den Tischbeinen in der Höhe und/oder in der Neigung verstellbar ist. Es kommen aber auch andere Möbelstücke in Betracht, die einen elektromotorisch verstellbaren Möbelverstellabschnitt und einen Möbelträgerabschnitt aufweisen, zum Beispiel Stühle, Sessel, Sofas, Betten oder dergleichen.The electrically adjustable piece of furniture has at least one Möbelverstellabschnitt, which can be adjusted by means of at least one drive motor relative to a furniture support portion of the piece of furniture. The piece of furniture is, for example, a table in which the table leg or table legs form the furniture carrier section and the table top is the furniture adjusting section, which is adjustable in height and / or inclination relative to the table leg (s). But there are also other pieces of furniture into consideration, the electromotive adjustable Möbelverstellabschnitt and have a furniture support section, for example, chairs, armchairs, sofas, beds or the like.
Die Ansteuerung der Antriebseinheit erfolgt über eine Sensoreinrichtung zur Erkennung der Neigung oder der Neigungsänderung des Möbelverstellabschnittes. Die Signale der Sensoreinrichtung sind einem dem Antriebsmotor zugeordneten Controller zuführbar, um den Antriebsmotor entsprechend der Signale der Sensoreinrichtung anzusteuern.The drive of the drive unit via a sensor device for detecting the inclination or the change in inclination of Möbelverstellabschnittes. The signals of the sensor device can be fed to a controller assigned to the drive motor in order to drive the drive motor in accordance with the signals of the sensor device.
Die Sensoreinrichtung ermöglicht es, die Ansteuerung des Antriebsmotors oder der Antriebsmotoren manuell auszulösen bzw. zu aktivieren, indem der Möbelverstellabschnitt, beispielsweise die Tischplatte, gegenüber einer Ausgangsposition manuell geneigt wird, zum Beispiel durch Ergreifen der Tischkante und Hoch- oder Niederdrücken der Tischkante. Die hierdurch erzeugte Neigung bzw. Kippung des Möbelverstellabschnittes wird über die Sensoreinrichtung erfasst und führt zu einer entsprechenden Ansteuerung des oder der Antriebsmotoren.The sensor device makes it possible to trigger the activation of the drive motor or the drive motors manually by manually tilting the Möbelverstellabschnitt, for example, the table top against a starting position, for example by gripping the edge of the table and pushing up or down the table edge. The inclination or tilting of the furniture adjustment section produced in this way is detected by the sensor device and leads to a corresponding activation of the drive motor (s).
Die elektrischen Antriebsmotoren werden vorzugsweise zum unmittelbaren Verstellen des Möbelverstellabschnitts eingesetzt. Alternativ sind auch Ausführungen mit hydraulischen Antriebseinheiten möglich, in denen die Antriebsmotoren die hydraulischen Pumpenmotoren bilden.The electric drive motors are preferably used for direct adjustment of the Möbelverstellabschnitts. Alternatively, embodiments with hydraulic drive units are possible in which the drive motors form the hydraulic pump motors.
Die Antriebsmotoren gehören vorzugsweise der alle gleichen Antriebskategorie an, beispielsweise zur elektrischen Verstellung des Möbelverstellabschnitts oder als hydraulischer Pumpenmotor. Alternativ sind auch Ausführungen mit unterschiedlichen Antriebskategorien möglich, beispielsweise eine Kombination von elektrischem Antriebsmotor zum Verstellen und hydraulischem Pumpenmotor.The drive motors preferably belong to the same drive category, for example, for the electrical adjustment of the Möbelverstellabschnitts or as a hydraulic pump motor. Alternatively, versions with different drive categories are possible, for example, a combination of electric drive motor for adjusting and hydraulic pump motor.
Vorteilhafterweise wird die Richtung der Neigungsänderung in eine gleichgerichtete Stellbewegung des Möbelverstellabschnittes umgesetzt, zum Beispiel im Falle eines höhenverstellbaren Tisches ein Hochdrücken der Tischkante in eine Stellbewegung der Tischplatte nach oben und ein Niederdrücken der Tischkante in eine Stellbewegung der Tischplatte nach unten.Advantageously, the direction of the change in inclination is converted into a rectified adjusting movement of the Möbelverstellabschnittes, for example in the case of a height-adjustable table pushing up the table edge in an adjusting movement of the table top up and depression of the table edge in an adjusting movement of the table top down.
Gemäß noch einem weiteren Aspekt der Erfindung, der sich auf ein Verfahren zum Ansteuern des Möbelstücks bezieht, wird die Auslösung bzw. Aktivierung des Ansteuerns über eine definierte Betätigung oder Bewegung bzw. Geste herbeigeführt. Dies hat den Vorteil, dass nur bei Vorliegen einer definierten Bewegung, die von der Sensoreinrichtung erfasst wird, die Ansteuerung des Antriebsmotors oder der Antriebsmotoren durchgeführt wird.According to a still further aspect of the invention, which relates to a method for driving the furniture, the triggering or activation of the drive is brought about via a defined actuation or movement or gesture. This has the advantage that only in the presence of a defined movement, which is detected by the sensor device, the control of the drive motor or the drive motors is performed.
Die Auslösung des Ansteuerns erfolgt beispielsweise dadurch, dass für einen definierten Zeitraum eine definierte Betätigung des Möbelverstellabschnitts durchgeführt wird, beispielsweise die Tischkante ein oder mehrmals nach oben oder unten gedrückt wird.The triggering of the activation takes place, for example, by carrying out a defined actuation of the furniture adjustment section for a defined period of time, for example by pressing the edge of the table one or more times upwards or downwards.
Wenn nach der Aktivierung innerhalb einer gewissen Zeit keine weitere Betätigung erfolgt, wird die Aktivierung wieder zurückgenommen.If after activating within a certain time no further actuation takes place, the activation is withdrawn again.
Das Auslösung des Ansteuerns und/oder die Positionsänderung des Möbelverstellabschnitts kann zusätzlich oder in alternativer Ausführung auch über eine Betätigungseinrichtung wie z.B. einen Schalter oder einen Druck- oder Drehknopf herbeigeführt werden.The triggering of the activation and / or the change in position of the furniture adjustment section can additionally or in an alternative embodiment also be effected by means of an actuation device, such as e.g. a switch or a push or turn knob be brought about.
Die Sensoreinrichtung zur Erkennung der Neigung oder der Neigungsänderung kann auch zur Kollisionserkennung eingesetzt werden, da bei einer Kollision des Möbelverstellabschnittes mit einem Gegenstand sich die Neigung des Verstellabschnittes ändert, was sensorisch erfasst und zu einer Ansteuerung des oder der elektrischen Antriebsmotoren genutzt werden kann. Wird während einer Verstellbewegung des Möbelverstellabschnittes eine unerwartete Neigung festgestellt, deutet dies auf eine Kollision hin, woraufhin im Controller Steuersignale zur Ansteuerung des oder der Antriebsmotoren erzeugt werden und die Antriebsmotoren gestoppt und gegebenenfalls in Gegenrichtung betätigt werden.The sensor device for detecting the inclination or the inclination change can also be used for collision detection be, as in a collision of Möbelverstellabschnittes with an object, the inclination of the adjustment changes, which can be detected by sensors and used to control the or the electric drive motors. If an unexpected inclination is detected during an adjustment movement of the furniture adjustment section, this indicates a collision, whereupon control signals for controlling the drive motor (s) are generated in the controller and the drive motors are stopped and optionally actuated in the opposite direction.
Wird ein mehrachsiger Sensor eingesetzt, so ist auch eine Erfassung in mehreren Achsen bzw. mehrerer Bewegungsrichtungen möglich, beispielsweise bei Tischen eine veränderte Winkellage um verschiedene Winkelachsen, z.B. bei Winkelschreibtischen.If a multi-axis sensor is used, detection in several axes or multiple directions of movement is also possible, for example in tables a changed angular position about different angular axes, e.g. at angle desks.
Die erfindungsgemäße Ausführung bezieht sich auf ein elektrisch verstellbares Möbelstück mit mindestens zwei elektrischen Antriebsmotoren, die unabhängig voneinander angesteuert werden. Dies schließt auch eine synchrone Ansteuerung der Antriebsmotoren ein. Zugleich erlaubt die unabhängige Ansteuerung auch eine unterschiedliche Betätigung der Antriebsmotoren, beispielsweise zum Zwecke eines Höhenausgleichs bei unebenem Boden, um zum Beispiel im Falle eines Tisches eine horizontale, im Wasser stehende Tischplatte einzustellen. Die Ist-Neigung des Möbelverstellabschnittes wird in diesem Fall auf eine Sollneigung eingestellt.The embodiment of the invention relates to an electrically adjustable piece of furniture with at least two electric drive motors, which are controlled independently of each other. This also includes a synchronous control of the drive motors. At the same time, the independent control also allows a different operation of the drive motors, for example, for the purpose of height compensation on uneven ground, for example, in the case of a table to set a horizontal, standing in the water table top. The actual inclination of the Möbelverstellabschnittes is set in this case to a nominal inclination.
Werden mehrere Antriebe eingesetzt, dann kann es erforderlich sein, die Antriebe während der Verstellung so zu synchronisieren, dass eine bestimmte Fläche des Möbelstücks, z.B. die Tischplatte, während des Verfahrens eben bleibt. Durch Auswertung der Sensorsignale ist es möglich, die Antriebe so anzusteuern, dass sie synchron laufen, indem z.B. die Tischplatte eben gehalten wird.If multiple drives are used, then it may be necessary to synchronize the drives during the adjustment so that a certain area of the piece of furniture, eg the table top, remains flat during the procedure. By evaluating the sensor signals, it is possible the drives so to control that they run synchronously, for example by holding the table top level.
Es werden die Signale eines hochauflösenden Kreiselsensors und eines Gravitationssensors, der einen absoluten Neigungswert ausgibt, kombiniert. Die Höhe des Möbelverstellabschnitts kann über einen Abstandssensor ermittelt werden, der den Abstand zum Boden, zu einer Referenz oder zur Decke misst.It combines the signals of a high-resolution gyro sensor and a gravitational sensor that outputs an absolute slope value. The height of the furniture adjustment section can be determined by a distance sensor that measures the distance to the floor, to a reference or to the ceiling.
Die unabhängige Ansteuerbarkeit der elektrischen Antriebsmotoren erlaubt einen einfachen Aufbau, insbesondere in der Art, dass nur ein Teil der elektrischen Antriebsmotoren mit Sensorsignalen versorgt werden muss. Auch in dieser vereinfachten Ausführung kann eine gewünschte Neigungsposition des verstellbaren Möbelverstellabschnitts gegenüber dem Möbelträgerabschnitt eingehalten werden. Derjenige elektrische Antriebsmotor, der mit einer Sensoreinrichtung versehen ist bzw. in Abhängigkeit von Sensorsignalen der Sensoreinrichtung angesteuert wird, führt automatisch und unabhängig von dem weiteren Antriebsmotor ohne Sensorsignale eine Ausgleichsbewegung aus. Über die Sensoreinrichtung wird bereits während des Verfahrens des Möbelverstellabschnittes eine Neigung bzw. Neigungsänderung des Möbelverstellabschnittes festgestellt und durch eine entsprechende Ansteuerung des zugeordneten elektrischen Antriebsmotors kompensiert.The independent controllability of the electric drive motors allows a simple structure, in particular in the way that only a part of the electric drive motors must be supplied with sensor signals. Also in this simplified embodiment, a desired inclination position of the adjustable Möbelverstellabschnitts relative to the furniture carrier section can be maintained. The electric drive motor, which is provided with a sensor device or is controlled in dependence on sensor signals of the sensor device, automatically performs a compensation movement independently of the further drive motor without sensor signals. By means of the sensor device, an inclination or change in inclination of the furniture adjusting section is already detected during the movement of the furniture adjusting section and compensated by a corresponding control of the associated electric drive motor.
Es ist somit beispielsweise möglich, den Möbelverstellabschnitt, beispielsweise eine Tischplatte, mit zwei elektrischen Antriebsmotoren auszustatten, von denen aber nur ein elektrischer Antriebsmotor unter Berücksichtigung der Sensorsignale angesteuert wird, wohingegen der zweite elektrische Antriebsmotor ohne Berücksichtigung von Sensorsignalen betätigt wird. Über den Antriebsmotor, der unter Berücksichtigung der Sensorsignale angesteuert wird, kann eine gewünschte Neigung des Möbelverstellabschnitts eingehalten werden.It is thus possible, for example, to equip the furniture adjustment section, for example a table top, with two electric drive motors, of which only one electric drive motor is actuated taking into account the sensor signals, whereas the second electric drive motor is actuated without consideration of sensor signals. About the drive motor, which is controlled taking into account the sensor signals, a desired inclination of Möbelverstellabschnitts be met.
Es kommen sowohl Ausführungen in Betracht, bei denen jedem elektrischen Antriebsmotor ein eigener, separater Controller zugeordnet ist, als auch Ausführungen mit einem gemeinsamen Controller für mindestens zwei elektrische Antriebsmotoren. Sowohl in der Ausführung mit separaten Controllern als auch in der Ausführung mit einem gemeinsamen Controller ist eine unabhängige Ansteuerung der verschiedenen elektrischen Antriebsmotoren möglich.Both versions come into consideration, in which each electrical drive motor is assigned its own, separate controller, as well as versions with a common controller for at least two electric drive motors. Both in the version with separate controllers and in the version with a common controller, an independent control of the various electric drive motors is possible.
Wird der Abstandssensor auch zur Gestensteuerung verwendet, so wird die Positionsänderung während der Abdeckung des Abstandssensors durch die Geste über die Auswertung der Signale des Gravitationssensors errechnet.If the distance sensor is also used for gesture control, the position change during the coverage of the distance sensor is calculated by the gesture via the evaluation of the signals of the gravitational sensor.
Werden Sensoren mit mehreren Achsen eingesetzt, so ist es auch möglich, z. B. Tische mit drei oder vier Beinen in beiden Achsen eben zu halten.If sensors are used with multiple axes, so it is also possible, for. B. To keep tables with three or four legs flat in both axes.
Werden Antriebe über eine Auswertung der Neigung oder Neigungsänderung synchronisiert, so sind Antriebslösungen möglich, bei denen es nicht mehr erforderlich ist, dass die Antriebe über einen gemeinsamen Controller kommunizieren oder auf andere Weise, z.B. über ein Bussystem von der Aktivität des anderen Antriebs erfahren. Dabei wird jeder Antrieb mit Sensoren zur Neigungs- oder Neigungsänderungserfassung ausgestattet und sorgt unabhängig voneinander dafür, dass z.B. eine Tischplatte gerade gehalten wird. Es kann ausreichend sein, wenn nur einer der Antriebe über eine Einrichtung verfügt, mit der der Benutzer die gewünschte Verstellung einleitet, während die anderen Antriebe automatisch folgen.If drives are synchronized via an evaluation of the inclination or inclination change, then drive solutions are possible in which it is no longer necessary for the drives to communicate via a common controller or to learn about the activity of the other drive in another way, eg via a bus system. Each drive is equipped with sensors for inclination or inclination change detection and independently ensures that eg a table top is held straight. It may be sufficient if only one of the drives has a device with which the user initiates the desired adjustment, while the other drives follow automatically.
Bei einer entsprechenden Anordnung und Verteilung der elektrischen Antriebsmotoren ist es auch möglich, eine gewünschte Soll- bzw. Kippneigung des Möbelverstellabschnittes einzustellen, beispielsweise im Fall eines Tisches eine gewünschte Pultneigung der Tischplatte.With a corresponding arrangement and distribution of the electric drive motors, it is also possible to set a desired set or tilt tendency of the Möbelverstellabschnittes, for example, in the case of a table a desired desk tilt of the table top.
Der Sensor in der Sensoreinrichtung zum Erfassen der Neigung bzw. Neigungsänderung ist beispielsweise als ein Kreiselsensor ausgebildet, über den eine Rotation bzw. Winkeländerung des Möbelverstellabschnitts ermittelt werden kann. Zusätzlich oder alternativ kann der Sensor auch als ein Gravitationssensor ausgeführt sein, über den die absolute Neigung des Möbelverstellabschnittes ermittelt werden kann. Über eine Integration der Rotation des Möbelverstellabschnitts über mehrere, aufeinander folgende Zeitpunkte kann entsprechend die Neigung des Möbelverstellabschnitts ermittelt werden. Es kommen sowohl Ausführungen in Betracht, bei denen die Sensoreinrichtung nur einen Sensor zur Neigungsermittlung umfasst als auch Ausführungen mit mehreren Sensoren zur Neigungsermittlung, die entweder gleichartig oder unterschiedlich ausgebildet sind.The sensor in the sensor device for detecting the inclination or inclination change is designed, for example, as a gyro sensor, via which a rotation or angular change of the furniture adjustment section can be determined. Additionally or alternatively, the sensor may also be designed as a gravitational sensor, via which the absolute inclination of the Möbelverstellabschnittes can be determined. By integrating the rotation of the Möbelverstellabschnitts over several successive times can be determined according to the inclination of Möbelverstellabschnitts. There are both versions into consideration, in which the sensor device comprises only one sensor for tilt determination as well as versions with a plurality of sensors for tilt detection, which are designed either the same or different.
Gemäß noch einer weiteren vorteilhaften Ausführung umfasst die Sensoreinrichtung einen Sensor zur Erkennung einer berührungslosen Steuerungsgeste, über die der Antriebsmotor ansteuerbar ist. Der berührungslos arbeitende Sensor kann des Weiteren zur Abstandsmessung zwischen dem Möbelverstellabschnitt und einem Referenzpunkt eingesetzt werden. Der Referenzpunkt dient dazu, entweder die absolute Höhe oder die relative Höhe des Möbelverstellabschnitts zu messen.According to yet another advantageous embodiment, the sensor device comprises a sensor for detecting a non-contact control gesture, via which the drive motor can be controlled. The non-contact sensor can also be used for distance measurement between the Möbelverstellabschnitt and a reference point. The reference point is used to measure either the absolute height or the relative height of the Möbelverstellabschnitts.
Die Erfassung der Steuerungsgesten, die im Erfassungsbereich der Sensoreinrichtung von einem Benutzer mit einem Körperteil, beispielsweise der Hand oder dem Fuß oder einem Gegenstand ausgeführt werden, dient zum einen zum Einschalten und/oder Abschalten des elektrischen Antriebsmotors und zum andern zur Ansteuerung des Antriebsmotors in eine gewünschte Drehrichtung. Gegebenenfalls kann auch die Antriebsgeschwindigkeit des Antriebsmotors über eine entsprechende Geste gesteuert werden. Dies erlaubt es zum einen, den Antriebsmotor mit einer definierten Steuerungsgeste zu aktivieren, so dass ein versehentliches Gestikulieren im Erfassungsbereich der Sensoreinrichtung nicht zu einem Ansteuern des oder der Antriebsmotoren führt. Zum andern kann die Art und Weise der Betätigung des oder der Antriebsmotoren über Gesten gesteuert werden, also die Richtung, in die der Möbelverstellabschnitt bewegt werden soll, und gegebenenfalls auch die Verstellgeschwindigkeit.The detection of the control gestures that occur in the detection range of the sensor device by a user with a body part, For example, the hand or the foot or an object are used, on the one hand for switching on and / or switching off the electric drive motor and on the other to control the drive motor in a desired direction of rotation. Optionally, the drive speed of the drive motor can be controlled via a corresponding gesture. This makes it possible, on the one hand, to activate the drive motor with a defined control gesture, so that an inadvertent gesturing in the detection range of the sensor device does not lead to a driving of the drive motor or motors. On the other hand, the manner of actuation of the drive motor or motors can be controlled by gestures, ie the direction in which the Möbelverstellabschnitt is to be moved, and optionally also the Verstellgeschwindigkeit.
Die Sensoreinrichtung ist Teil einer Steuerungseinrichtung mit einem Controller, in welchem die Sensorsignale der Sensoreinrichtung verarbeitet und Steuersignale zur Ansteuerung des oder der Antriebsmotoren erzeugt werden. Die Steuerungseinrichtung kann in den Antriebsmotor integriert oder außerhalb des Antriebsmotors angeordnet sein.The sensor device is part of a control device with a controller in which the sensor signals of the sensor device are processed and control signals for driving the drive motor or motors are generated. The control device can be integrated in the drive motor or arranged outside the drive motor.
Weitere Vorteile und zweckmäßige Ausführungen sind den weiteren Ansprüchen, der Figurenbeschreibung und den Zeichnungen zu entnehmen. Es zeigen:
- Fig. 1
- ausschnittsweise in Seitenansicht als verstellbares Möbelstück einen Tisch, wobei die Tischplatte über einen elektrischen Antriebsmotor gegenüber einem Tischbein höhenverstellbar ist,
- Fig. 2
- der Tisch gemäß
Fig. 1 mit angehobener Tischplatte, - Fig. 3
- in Seitenansicht ein vollständiger Tisch mit jeweils einem elektrischen Antriebsmotor im linken und rechten Tischbein,
- Fig. 4
- eine an der Tischplatte angeordnete Sensoreinrichtung zur Erkennung einer berühungslosen Steuerungsgeste, die von der Hand eines Benutzers erzeugt wird,
- Fig. 5
- in Explosionsdarstellung eine Steuerungseinrichtung zur Ansteuerung eines elektrischen Anstriebsmotors, mit einem Controller und einem separaten Sensor,
- Fig. 6
- ein Tisch mit höhenverstellbarer Tischplatte und einer berührungslos arbeitenden Sensoreinrichtung zur Ermittlung der Höhe der Tischplatte gegenüber dem Tischbein,
- Fig. 7
- in einer weiteren Ausführung ein Tisch mit einer berührungslos arbeitenden Sensoreinrichtung zur Ermittlung der Höhe der Tischplatte gegenüber dem Fußboden, wobei die Sensoreinrichtung zusätzlich zur Gestensteuerung nutzbar ist,
- Fig. 8
- in einer weiteren Ausführung ein Tisch mit höhenverstellbarer Tischplatte und einer berührungslos arbeitenden Sensoreinrichtung, die u.a. zur Ermittlung der Höhe der Tischplatte gegenüber der Decke einsetzbar ist,
- Fig. 9
- in perspektivischer Ansicht ein Tisch mit drei Tischbeinen, wobei die Tischplatte über Antriebsmotoren in jedem Tischbein höhenverstellbar ist.
- Fig. 1
- partially in side view as an adjustable piece of furniture a table, the table top is height adjustable by an electric drive motor relative to a table leg,
- Fig. 2
- the table according to
Fig. 1 with raised table top, - Fig. 3
- in side view a complete table, each with an electric drive motor in the left and right table leg,
- Fig. 4
- a sensor device arranged on the tabletop for detecting a non-contact control gesture which is generated by the hand of a user,
- Fig. 5
- an exploded view of a control device for controlling an electric onrush motor, with a controller and a separate sensor,
- Fig. 6
- a table with a height-adjustable tabletop and a non-contact sensor device for determining the height of the tabletop relative to the table leg,
- Fig. 7
- in a further embodiment, a table with a non-contact sensor device for determining the height of the table top relative to the floor, wherein the sensor device is additionally usable for gesture control,
- Fig. 8
- in a further embodiment, a table with a height-adjustable tabletop and a non-contact sensor device which can be used inter alia for determining the height of the tabletop relative to the ceiling,
- Fig. 9
- in a perspective view of a table with three legs, the table top is height adjustable via drive motors in each table leg.
In den Figuren sind gleiche Bauteile mit gleichen Bezugszeichen versehen.In the figures, the same components are provided with the same reference numerals.
In den
An der Unterseite der Tischplatte 3 befindet sich eine Steuerungseinrichtung 6, über die der elektrische Antriebsmotor 4 angesteuert wird. Die Steuerungseinrichtung 6 umfasst einen Controller sowie eine Sensoreinrichtung 7, deren Sensorsignale in dem Controller zu Steuersignalen verarbeitet werden, mit denen der Antriebsmotor 4 angesteuert wird. Der elektrische Antriebsmotor 4 kann in beide Drehrichtungen angesteuert werden, um eine entsprechende Hubbewegung der Tischplatte 3 nach oben bzw. unten zu bewirken.At the bottom of the
Die Sensoreinrichtung 7 umfasst einen berührungslos arbeitenden Sensor, beispielsweise einen optischen Sensor, einen Ultraschallsensor, einen Infrarotsensor oder einen kapazitiven Sensor, wobei gegebenenfalls mehrere Sensoren der gleichen oder auch unterschiedlicher Art kombiniert werden können. Mit der Sensoreinrichtung 7 wird, wie mit dem Pfeil 8 angedeutet, der Bereich oberhalb der Tischplatte 3 erfasst. Der Sensor der Sensoreinrichtung 7 besitzt einen sensorabhängigen sowie von dem Einbauort abhängigen Erfassungsbereich, wobei ein in den Erfassungsbereich einragender Körperteil oder Gegenstand erfasst wird, mit dem eine Steuerungsgeste ausgeübt werden kann, um den Antriebsmotor anzusteuern.The
Als Steuerungsgeste wird beispielsweise eine Bewegung nach oben oder nach unten innerhalb des Erfassungsbereichs der Sensoreinrichtung 7 durchgeführt, wobei über eine kontinuierliche Abstandsmessung zwischen der Sensoreinrichtung 7 und Körperteil bzw. dem Gegenstand innerhalb des Erfassungsbereichs auch die Richtung sowie die Geschwindigkeit des einragenden Körperteils bzw. Gegenstands ermittelt werden kann.As a control gesture, for example, a movement is carried out upwards or downwards within the detection range of the
Die Steuerungsgeste wird auf berührungslose Weise von der Sensoreinrichtung 7 erfasst. Prinzipiell kann der Körperteil bzw. der Gegenstand unmittelbar auf der Oberseite der Tischplatte 3 aufliegen, wobei auch in diesem Fall ein Abstand zur Sensoreinrichtung 7, die sich auf der Unterseite der Tischplatte befindet, besteht. Typischerweise wird die Steuerungsgeste jedoch mit Abstand zur Oberseite der Tischplatte 3 durchgeführt.The control gesture is detected by the
Die Sensoreinrichtung 7 kann ggf. auch an der oberen Tischseite angeordnet sein und/oder den Bereich oberhalb der Tischplatte erfassen.If appropriate, the
Zur Ansteuerung des Sensors muss die Steuerungseinrichtung 6 zunächst durch eine Aktivierungsgeste aktiviert werden, um den anschließenden Ansteuerungsvorgang zu ermöglichen. Die Aktivierung bzw. Auslösung des Ansteuerns wird beispielsweise dadurch herbeigeführt, dass der steuernde Körperteil bzw. Gegenstand in einem definierten Abstand und für einen definierten Zeitraum zur Sensoreinrichtung 7 gehalten wird. Die Aktivierung kann optisch angezeigt werden, z.B. durch ein LED, wobei die optische Anzeige nach einer definierten Zeit wieder erlischt, wenn auf die Aktivierung keine weiteren Gesten folgen.To control the sensor, the
Nach der Aktivierung kann die Positionsänderung der Tischplatte 3 mithilfe einer Positionsänderung-Steuerungsgeste durchgeführt werden, insbesondere durch eine Bewegung nach oben für ein Anheben der Tischplatte 3 und eine Bewegung nach unten für ein Absenken der Tischplatte 3. Die Beendigung des Verstellvorgangs wird vorzugsweise über einen Stopp der Steuerungsgeste erreicht, beispielsweise durch Wegziehen des steuernden Körperteils aus dem Erfassungsbereich heraus. Diese Vorgehensweise hat den Vorteil, dass die Verstellbewegung der Tischplatte synchron zur Steuerungsgeste abläuft.After activation, the position change of the
Die berührungslos arbeitende Sensoreinrichtung 7 kann außerdem zur Abstandsmessung zwischen der Tischplatte 3 und einem Referenzvorsprung 9 am Tischbein 2 eingesetzt werden. Der Referenzvorsprung 9 ist als ein sich in Querrichtung erstreckender Vorsprung am oberen Ende des Tischbeins 2 ausgebildet, der in den nach unten gerichteten Erfassungsbereich der Sensoreinrichtung 7 einragt. Der Abstand zwischen der Tischplatte 3 und dem Referenzvorsprung 9 kann zur Bestimmung eines als Referenz dienenden Ausgangspunktes herangezogen werden, insbesondere einer Standard- oder Sollhöhe der Tischplatte, gegenüber der die Relativverstellungen durchgeführt werden. Die Abstandsmessung kann über eine zweite Sensoreinrichtung oder einen zweiten Sensor der Sensoreinrichtung erfolgen, so dass beispielsweise der Bereich oberhalb und unterhalb der Tischplatte erfasst werden kann.The
In
Die beiden elektrischen Antriebsmotoren 4 können über die gemeinsame Steuerungseinrichtung 6 in einer synchronen Weise angesteuert werden. Gegebenenfalls ist auch eine unabhängige Ansteuerung der beiden elektrischen Antriebsmotoren 4 möglich. Dies ermöglicht es beispielsweise, eine Sollneigung der Tischplatte 3, zum Beispiel eine horizontale Ausrichtung der Tischplatte trotz unebenen Bodens oder definierte Pultneigung einzustellen. Sofern mehrere Sensoren in der Sensoreinrichtung 7 angeordnet sind, können entsprechend mehrere Bewegungsfreiheitsgrade der Tischplatte 3 ermittelt und über die verschiedenen Antriebsmotoren auf gewünschte Sollwerte eingestellt werden.The two electric drive motors 4 can be controlled via the
Dies kann auch durch Gesten zur Ansteuerung eines oder mehrerer Sensoren erfolgen. Hierfür wird zum Beispiel eine lange Aktivierungsposition für die Beeinflussung in eine erste Bewegungsrichtung und eine kurze Aktivierungsposition für die Beeinflussung in eine zweite Bewegungsrichtung eingenommen. Die jeweilige Aktivierung kann optisch angezeigt werden, z.B. über eine LED in verschiedenen Farben oder Blinkzeichen.This can also be done by gestures to control one or more sensors. For this purpose, for example, a long activation position for influencing a first direction of movement and a short activation position for influencing a second direction of movement are taken. The respective activation can be visually displayed, eg via a LED in different colors or flashing signs.
In
In den
Gemäß
In
Gemäß
Ein weiteres Ausführungsbeispiel ist in
Die Steuerungseinrichtung 6 umfasst vorzugsweise mindestens zwei einzelne Sensoren in einer Sensoreinrichtung, über die gemäß den Pfeilen 17 und 18 ein Kippen bzw. Neigen der Tischplatte 3 um zwei horizontal verlaufende, in der Ebene der Tischplatte 3 liegende Achsen ermittelt werden kann. Hierzu weist die Steuerungseinrichtung 6 eine Sensoreinrichtung mit zumindest zwei Sensoren auf, die zur Ermittlung der Neigung und/oder der Neigungs- bzw. Winkeländerung der Tischplatte ausgebildet sind. Bei den Sensoren handelt es sich um Kreiselsensoren und/oder Gravitationssensoren, wobei über die Kreiselsensoren die Winkeländerung bzw. Rotationsgeschwindigkeit der Tischplatte 3 und über die Gravitationssensoren die absolute Neigung und die Beschleunigung der Tischplatte 3 ermittelt werden können. Über beide Sensortypen kann, sofern über die Zeit eine fortlaufende Messung durchgeführt wird, die Änderung der Neigung der Tischplatte 3 ermittelt werden. Vorteilhaft ist auch die Kombination von Kreiselsensor und Gravitationssensor, um eine genaue Steuerung der Lage zu ermöglichen.The
Die Neigungsermittlung über die Sensoreinrichtung erlaubt verschiedene Funktionsweisen. Zum einen kann eine Kollisionserkennung durchgeführt werden, indem beim Hoch- oder Herunterfahren der Tischplatte 3 eine plötzlich auftretende Neigungsänderung als Kollision mit einem Gegenstand interpretiert wird, die zu einem Stopp der Stellbewegung der Tischplatte 3 und gegebenenfalls zu einer Umkehrung der Stellbewegung in die entgegengesetzte Richtung führt.The determination of the inclination via the sensor device allows different modes of operation. On the one hand, a collision detection can be carried out by interpreting the
Zum andern kann durch Anheben oder Herunterdrücken der Tischkante der Tischplatte 3 eine motorisch unterstützte Anhebe- oder Absenkbewegung der Tischplatte erzeugt werden. Das Anheben oder Herunterdrücken der Tischkante führt zu einer entsprechenden Neigungsänderung der Tischplatte 3, was sensorisch und in der Steuerungseinrichtung zur Erzeugung von Steuersignalen für die Antriebsmotoren verarbeitet wird. Die Antriebsmotoren sind über die Steuerungseinrichtung einzeln und unabhängig voneinander ansteuerbar, was auch eine synchrone Ansteuerung einschließt.On the other hand, by raising or lowering the table edge of the
Zusätzlich oder alternativ zu einem Anheben bzw. Absenken der Tischplatte 3 kann gegebenenfalls auch eine gewünschte Pultneigung der Tischplatte 3 eingestellt werden. In beiden Fällen muss zur Einleitung der Bewegung ein Aktivierungszyklus vorgeschaltet werden, indem man z.B. die Tischplatte innerhalb eines definierten Zeitraums einmal oder mehrmals nach oben bzw. unten drückt. Die Aktivierung kann durch ein akustisches oder optisches Aktivierungssignal angezeigt werden, woraufhin die Bewegung durch Anheben oder Absenken der Tischplattenkante eingeleitet wird.In addition or as an alternative to lifting or lowering the
Des Weiteren ist es möglich, Höhenunterschiede in den drei verschiedenen Tischbeinen über eine getrennte Ansteuerung der Antriebsmotoren auszugleichen, beispielsweise, um eine horizontal ausgerichtete, im Wasser stehende Tischplatte 3 zu erhalten.Furthermore, it is possible to compensate for differences in height in the three different table legs via a separate control of the drive motors, for example, to obtain a horizontally oriented, standing in the
Claims (13)
- Electrically adjustable piece of furniture, having at least two electric drive motors (4) for adjusting at least one furniture adjusting section (3) relative to a furniture support section (2) of the piece of furniture (1), the piece of furniture (1) having a sensor device (7) for detecting the inclination or the change in inclination of the furniture adjusting section (3), and the drive motors (4) being controllable as a function of the inclination or the change in inclination,
characterized in that the at least two drive motors (4) for adjusting the furniture adjusting section (3) can be actuated independently of one another, in that the sensor device (7) comprises at least one gyro sensor, via which the inclination or change in inclination or angle of the furniture adjusting section (3) can be determined, and at least one gravitational sensor, via which the absolute inclination of the furniture adjusting section (3) can be determined. - Piece of Furniture according to Claim 1,
characterized in that only one part of the drive motors (4) is assigned a sensor device (7) and at least one drive motor (4) is equipped without a sensor device (7). - Piece of Furniture according to Claim 1 or 2,
characterized in that the direction of the change in inclination can be converted into a rectilinear adjusting movement of the furniture adjusting section (3) via a drive of the drive motor (4). - Piece of Furniture according to any one of Claims 1 to 3, characterized in that, in the event that the inclination or change of inclination exceeds a permissible extent, the drive motor (4) is to be stopped or controlled in the opposite direction.
- Piece of Furniture according to any one of Claims 1 to 4, characterized in that a desired inclination of the furniture adjusting section (3) can be set by actuating one or more drive motors (4).
- Piece of Furniture according to any one of Claims 1 to 5, characterized in that the piece of furniture (1) has a sensor device (7) for detecting a contactless control gesture via which the drive motor (4) can be actuated.
- Piece of Furniture according to any one of Claims 1 to 6, characterized in that the piece of furniture (1) has a sensor device (7) for contactless distance measurement between the furniture adjusting section (3) and a reference point.
- Piece of Furniture according to any one of Claims 1 to 7, characterized in that each electric drive motor (4) is assigned its own separate controller.
- Piece of Furniture according to any one of Claims 1 to 7, characterized in that a common controller for at least two electric drive motors (4) is provided.
- Method for Controlling a Piece of Furniture according to any one of Claims 1 to 9, wherein the at least one drive motor (4) is controlled as a function of the detected inclination or change in inclination.
- Method according to Claim 10,
characterized in that the triggering of the activation and/or the change in position of the furniture adjustment section (3) are brought about via a defined movement in the detection region of the sensor device (7). - Method according to Claim 10 or 11,
is characterized by
in that the triggering of the activation and/or the change in position of the furniture adjusting section (3) are brought about via an actuating device such as, for example, a switch or a push or rotary knob. - Method according to any one of Claims 10 to 12,
characterized in that the synchronization of the drive units for setting the inclination or the change in inclination of the furniture adjusting section (3) is carried out on the basis of the sensor data of a gyro sensor, the inclination being corrected via the sensor data of a gravitational sensor and the height of the furniture adjusting section (3) being set via a distance sensor.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE102016101955.0A DE102016101955A1 (en) | 2016-02-04 | 2016-02-04 | Electrically adjustable furniture |
PCT/DE2017/100069 WO2017133729A1 (en) | 2016-02-04 | 2017-02-02 | Electrically adjustable piece of furniture |
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EP3410895A1 EP3410895A1 (en) | 2018-12-12 |
EP3410895B1 true EP3410895B1 (en) | 2019-06-05 |
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US (1) | US10470562B2 (en) |
EP (1) | EP3410895B1 (en) |
DE (2) | DE102016101955A1 (en) |
WO (1) | WO2017133729A1 (en) |
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- 2017-02-02 WO PCT/DE2017/100069 patent/WO2017133729A1/en active Application Filing
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2018
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EP3410895A1 (en) | 2018-12-12 |
DE202016104512U1 (en) | 2016-08-23 |
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