EP1694162B1 - Displaceable piece of furniture - Google Patents

Displaceable piece of furniture Download PDF

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Publication number
EP1694162B1
EP1694162B1 EP04789565A EP04789565A EP1694162B1 EP 1694162 B1 EP1694162 B1 EP 1694162B1 EP 04789565 A EP04789565 A EP 04789565A EP 04789565 A EP04789565 A EP 04789565A EP 1694162 B1 EP1694162 B1 EP 1694162B1
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EP
European Patent Office
Prior art keywords
furniture part
movable furniture
evaluation unit
outer panel
movable
Prior art date
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Active
Application number
EP04789565A
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German (de)
French (fr)
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EP1694162A1 (en
Inventor
Edgar Huber
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Julius Blum GmbH
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Julius Blum GmbH
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Publication date
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Publication of EP1694162A1 publication Critical patent/EP1694162A1/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/70—Power-operated mechanisms for wings with automatic actuation
    • 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
    • A47B88/457—Actuated drawers operated by electrically-powered actuation means
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/60—Power-operated mechanisms for wings using electrical actuators
    • E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • E05F15/611—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/70—Power-operated mechanisms for wings with automatic actuation
    • E05F15/73—Power-operated mechanisms for wings with automatic actuation responsive to movement or presence of persons or objects
    • E05F15/75—Power-operated mechanisms for wings with automatic actuation responsive to movement or presence of persons or objects responsive to the weight or other physical contact of a person or object
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2400/00—Electronic control; Power supply; Power or signal transmission; User interfaces
    • E05Y2400/10—Electronic control
    • E05Y2400/44—Sensors therefore
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2400/00—Electronic control; Power supply; Power or signal transmission; User interfaces
    • E05Y2400/80—User interfaces
    • E05Y2400/85—User input means
    • E05Y2400/852—Sensors
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/10—Additional functions
    • E05Y2800/11—Manual wing operation
    • E05Y2800/112—Back driving the transmission or motor
    • E05Y2800/113—Power assistance
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/20—Application of doors, windows, wings or fittings thereof for furnitures, e.g. cabinets

Definitions

  • the present invention relates to a movable furniture part with at least one force sensor for measuring forces acting on the outer panel of the movable furniture part.
  • Such a movable furniture part goes from the EP 1 323 363 A1 out.
  • the force signal measured by the force sensor can be interpreted, for example, as an actuation request of the user.
  • the force sensor may be arranged in the prior art between an outer panel of the movable furniture part and a directly adjoining part of the movable furniture part. The disadvantage is that it can come, for example, by overturning of the contents in or behind the movable furniture part to a false triggering of the force sensor.
  • the object of the invention is to provide a generic movable furniture part, in which this problem does not occur.
  • the movable furniture part has an inner panel arranged behind the outer panel and spaced from the front panel, and that the at least one force sensor is arranged between outer panel and inner panel.
  • a movable furniture part is thus created in which the force sensor or sensors have a higher operating safety.
  • a shift of arranged in or behind the movable furniture part filling thus no longer leads to incorrectly detected forces and thus a false trip.
  • forces of a user are also detected which the latter exerts on the movable furniture part by embracing the outer panel.
  • the inner panel may have a smaller area than the outer panel, so that the outer panel projects at least partially over the inner panel.
  • Particularly advantageous in the arrangement according to the invention of the at least one force sensor is also achieved by clamping protection. If it comes to pinching an object between the protruding outer panel of the stored furniture in a furniture part and the furniture itself, the forces occurring are immediately registered by the force sensor and it can be initiated appropriate countermeasures.
  • It can be provided, for example, to detect from the outset only the components of the forces in or opposite to the direction of movement of the movable furniture part. On the other hand, it can also be provided to first detect all components of the forces acting on the movable furniture part and to select the required components electronically.
  • the movable furniture part has at least two, preferably at least three, arranged between outer panel and inner panel force sensors.
  • the arrangement of a plurality of force sensors leads to a reduction of the force acting on a single force sensor and thereby reduces the risk of damage to the individual force sensors by acting on the outer panel of the movable furniture part forces.
  • At least one force sensor is arranged on the inner panel. If all provided force sensors are arranged on the inner panel, this has the advantage that the outer panel, which is usually designed to match the rest of the furniture, can be produced separately from the movable furniture component.
  • the movable furniture part may be, for example, a drawer, a liftable box or a furniture door. It could also be, for example, a flap or the like.
  • the invention further relates to a piece of furniture with a movable furniture part according to one of claims 1 to 4.
  • the furniture has a drive unit for driving the movable furniture part. This can be done by a user at least support the movement of the movable furniture part.
  • the furniture has a control or regulating device for controlling or regulating the drive unit. This allows the adaptation of the power of the drive unit to the force applied by a user to the movable furniture part.
  • the signals of the force sensor or of the force sensors can be fed to an evaluation unit arranged in the furniture or in the movable furniture part.
  • an evaluation unit arithmetic operations for more accurate determination of the required power of the drive unit depending on the size of the force applied by the user to the movable furniture part force can be done.
  • the signals of the at least one force sensor of the evaluation unit can be supplied via electrical lines. This represents a simple alternative to other more complex forms of signal transmission. It would also be conceivable, however, to use non-contact signal transmission, for example by radio.
  • the force sensors comprise strain gauges. These are easy to use and offer a good resolution.
  • the strain gauges are electrically connected to a full bridge (Wheatstone bridge). The ratio of the measured bridge detuning to the specified supply voltage corresponds to the cumulative relative change in length of the strain gauges.
  • the invention further relates to a piece of furniture with a movable furniture part according to claim 1, an evaluation unit and at least two piezoelectric force sensors for measuring acting on the outer panel of the movable furniture part forces, wherein the signals of the force sensors of the evaluation are supplied via electrical lines
  • Such furniture is for example from the EP 1 323 363 A1 out. So far, the force signals of the individual force sensors were individually transmitted to the evaluation and added in this to determine the force exerted on the movable furniture part total force.
  • the electrical leads leading from the force sensors to the evaluation unit are connected in parallel with each other and in series with the evaluation unit.
  • the invention further relates to a piece of furniture with a movable furniture part according to claim 1 of an evaluation unit and at least one force sensor for measuring forces acting on the outer panel of the movable furniture part, wherein the signals of the force sensor can be fed to the evaluation unit.
  • the evaluation unit was stationarily arranged in the furniture itself.
  • the disadvantage is that the analog signals generated by the force sensors on the movable furniture part are relatively susceptible to interference and already occur in the transmission of these signals from the force sensors to the stationary arranged in the furniture evaluation unit deterioration of the signal quality.
  • the evaluation unit is arranged to ride in or on the movable furniture part.
  • the interference-sensitive signals generated by the force sensors are fed over a distance that is kept as small as possible to the evaluation unit, which leads to a considerable improvement in the signal quality.
  • Fig. 1 shows a piece of furniture 9 with a movable furniture part 1 according to the invention, which is designed as a drawer in this embodiment.
  • the movable furniture part 1 in this case has an outer panel 2, on which a handle 10 is arranged.
  • Fig. 2 shows that in Fig. 1 illustrated furniture 9 in detail in the area of the movable furniture part 1 with the outer panel 2. It can be seen the inner panel 3, to which four force sensors 4 (here: piezoelectric force sensors) are arranged.
  • four force sensors 4 here: piezoelectric force sensors
  • Fig. 3 shows a further embodiment of a movable furniture part 1 according to the invention, in which only a centrally arranged force sensor 4 is provided.
  • Fig. 4a shows a page representation of the in Fig. 1
  • the inner panel 3 the outer panel 2 and the arranged between the inner panel 3 and outer panel 2 force sensors. 4
  • Fig. 4b shows the in Fig. 4a Area marked A in detail.
  • Fig. 5 shows by way of example the circuit arrangement of a piece of furniture 1, in which four piezoelectric force sensors 4 are connected via lines 8 parallel to each other and in series with an evaluation unit 7.
  • the evaluation unit 7 is connected via further lines with the control unit 6 for controlling the drive unit 5, which is an electric motor in this embodiment, in conjunction.
  • Fig. 6 shows a sectional view of an embodiment of a furniture according to the invention 9 with a designed as a drawer movable furniture part 1, in which between the inner panel 3 and outer panel 2 force sensors 4 are arranged.
  • the evaluation unit 7 is arranged along the movable furniture part 1 ride.
  • the leading from the force sensors 4 to the evaluation unit 7 electrical lines 8 are shown by dashed lines.
  • Fig. 7 shows a sectional view of another embodiment of a piece of furniture 9 according to the invention with a designed as a drawer movable furniture part 1, wherein the outer panel 2 projects beyond the inner panel 3.
  • the pinching of an object 11 between outer panel 2 and furniture 9 is shown.
  • the force exerted on the outer panel 2 there is a pivoting of the outer panel 2 in the direction shown by arrow 12.
  • This is registered by the force sensors 4 and reported via lines of the control unit 6, not shown, which immediately stops the drive unit 5 and, for example, can also command a partial removal of the movable furniture part 1 to release the object 11.
  • a pinch protection is realized.
  • Fig. 8 shows a further embodiment of a furniture 9 according to the invention, which is designed as a cabinet.
  • the movable furniture part 1 is a furniture door, which can be opened via a handle 10.
  • Fig. 9 shows a sectional view through the in Fig. 8 illustrated furniture 9 with closed furniture door. It can be seen that the movable furniture part 1, so the furniture door, an inner panel 3 and an outer panel 2, between which force sensors 4 are arranged.
  • Fig. 10a shows a further embodiment of a movable furniture part according to the invention 1.
  • four force sensors 4 are arranged, of which in Fig. 10 only two force sensors 4 can be seen, each force sensor 4 has two arranged on a bendable rod 13 strain gauges 16-23.
  • Each bendable rod 13 is attached via an intermediate piece 15 on the inner panel 3 and an intermediate piece 14 on the outer panel 2.
  • Fig. 10b shows the in Fig. 10a unrecognizable force sensors 4.
  • Fig. 11a-c shows that in Fig. 10 shown movable furniture part 1 for different situations of use.
  • the user exerts a pressure force F centrally on the outer panel 2, whereby the ends of the rods 13 connected to the intermediate pieces 15 bend in the direction of the inner panel 3.
  • the user exercises centrally on the outer panel 2, a tensile force F, resulting in the with the intermediate pieces 15th connected ends of the rods 13 in the direction of the outer panel 2 bend.
  • Fig. 11a the user exerts a pressure force F centrally on the outer panel 2, whereby the ends of the rods 13 connected to the intermediate pieces 15 bend in the direction of the inner panel 3.
  • Fig. 11b the user exercises centrally on the outer panel 2, a tensile force F, resulting in the with the intermediate pieces 15th connected ends of the rods 13 in the direction of the outer panel 2 bend.
  • Fig. 11a tensile force F resulting in the with the intermediate pieces 15th connected ends of the rods 13 in the direction of the outer panel
  • Fig. 12 shows the electrical circuit 12 of the strain gauges 17-23 of the in the Fig. 10a , b and 11 ac illustrated embodiment.
  • the strain gauges 17-23 are connected to a full bridge (Wheatstone bridge), wherein the Brückenvertician UM in relation to the supply voltage U B is a measure of the summed relative change in length of the strain gauges 17-23 and thus for the amount of detected force.
  • the bridge detuning UM is amplified in an amplifier 24 and fed to the control unit 6.
  • the control unit 6 communicates with the drive unit 5 designed as a motor.

Abstract

The invention relates to a displaceable piece of furniture comprising at least one force sensor which is used to measure forces applied to the external panel of the displaceable piece of furniture. The displaceable piece of furniture (1) comprises, when seen from the side, an internal panel (3) which is arranged behind said external panel (2) at a distance therefrom. The at least one force sensor (4) is disposed between the external panel (2) and the internal panel (3).

Description

Die vorliegende Erfindung betrifft ein bewegbares Möbelteil mit wenigstens einem Kraftsensor zur Messung von auf die Außenblende des bewegbaren Möbelteils angreifenden Kräften.The present invention relates to a movable furniture part with at least one force sensor for measuring forces acting on the outer panel of the movable furniture part.

Ein derartiges bewegbares Möbelteil geht beispielsweise aus der EP 1 323 363 A1 hervor. Das vom Kraftsensor gemessene Kraftsignal kann beispielsweise als Betätigungswunsch des Benutzers interpretiert werden. Der Kraftsensor kann beim Stand der Technik zwischen einer Außenblende des bewegbaren Möbelteils und einen daran direkt anschließenden Teil des bewegbaren Möbelteils angeordnet sein. Nachteilig ist daran, dass es beispielsweise durch Umstürzen des Füllguts in bzw. hinter dem bewegbaren Möbelteil zu einer Fehlauslösung des Kraftsensors kommen kann.Such a movable furniture part, for example, goes from the EP 1 323 363 A1 out. The force signal measured by the force sensor can be interpreted, for example, as an actuation request of the user. The force sensor may be arranged in the prior art between an outer panel of the movable furniture part and a directly adjoining part of the movable furniture part. The disadvantage is that it can come, for example, by overturning of the contents in or behind the movable furniture part to a false triggering of the force sensor.

Aufgabe der Erfindung ist es, ein gattungsgemäßes bewegbares Möbelteil zu schaffen, bei dem dieses Problem nicht auftritt.The object of the invention is to provide a generic movable furniture part, in which this problem does not occur.

Dies wird erfindungsgemäß dadurch erreicht, dass das bewegbare Möbelteil eine frontseitig betrachtet hinter der Außenblende angeordnete und von dieser beabstandete Innenblende aufweist und dass der wenigstens eine Kraftsensor zwischen Außenblende und Innenblende angeordnet ist.This is achieved according to the invention in that the movable furniture part has an inner panel arranged behind the outer panel and spaced from the front panel, and that the at least one force sensor is arranged between outer panel and inner panel.

Erfindungsgemäß wird somit ein bewegbares Möbelteil geschaffen, bei dem der bzw. die Kraftsensor(en) eine höhere Bediensicherheit aufweist (aufweisen). Eine Verlagerung von im bzw. hinter dem bewegbaren Möbelteil angeordnetem Füllgut führt somit nicht mehr zu fehlerhaft detektierten Kräften und damit einer Fehlauslösung. Erfindungsgemäß werden auch Kräfte eines Benutzers detektiert, welche dieser durch Umfassen der Außenblende auf das bewegbare Möbelteil ausübt. Um diese Bedienungsart zu erleichtern, kann die Innenblende eine geringere Fläche aufweisen als die Außenblende, sodass die Außenblende wenigstens bereichsweise über die Innenblende übersteht. Besonders vorteilhaft an der erfindungsgemäßen Anordnung des wenigstens einen Kraftsensors ist auch der dadurch erzielte Klemmschutz. Falls es zum Einklemmen eines Objekts zwischen der überstehenden Außenblende des in einem Möbel gelagerten Möbelteils und dem Möbel selbst kommt, werden die dabei auftretenden Kräfte sofort vom Kraftsensor registriert und es können geeignete Gegenmaßnahmen eingeleitet werden.According to the invention, a movable furniture part is thus created in which the force sensor or sensors have a higher operating safety. A shift of arranged in or behind the movable furniture part filling thus no longer leads to incorrectly detected forces and thus a false trip. According to the invention, forces of a user are also detected which the latter exerts on the movable furniture part by embracing the outer panel. To facilitate this operation, the inner panel may have a smaller area than the outer panel, so that the outer panel projects at least partially over the inner panel. Particularly advantageous in the arrangement according to the invention of the at least one force sensor is also achieved by clamping protection. If it comes to pinching an object between the protruding outer panel of the stored furniture in a furniture part and the furniture itself, the forces occurring are immediately registered by the force sensor and it can be initiated appropriate countermeasures.

Es kann beispielsweise vorgesehen sein, von vornherein nur die Komponenten der Kräfte in bzw. entgegengesetzt zur Bewegungsrichtung des bewegbaren Möbelteils zu detektieren. Andererseits kann auch vorgesehen sein, zuerst alle Komponenten der am bewegbaren Möbelteil angreifenden Kräfte zu detektieren und die benötigten Komponenten elektronisch auszuwählen.It can be provided, for example, to detect from the outset only the components of the forces in or opposite to the direction of movement of the movable furniture part. On the other hand, it can also be provided to first detect all components of the forces acting on the movable furniture part and to select the required components electronically.

Bei einer vorteilhaften Ausführungsform der Erfindung kann vorgesehen sein, dass das bewegbare Möbelteil mindestens zwei, vorzugsweise mindestens drei, zwischen Außenblende und Innenblende angeordnete Kraftsensoren aufweist. Die Anordnung mehrerer Kraftsensoren führt zu einer Reduzierung der auf einen einzelnen Kraftsensor einwirkenden Kraft und verringert dadurch die Gefahr einer Beschädigung der einzelnen Kraftsensoren durch die auf die Außenblende des bewegbaren Möbelteils angreifenden Kräfte.In an advantageous embodiment of the invention can be provided that the movable furniture part has at least two, preferably at least three, arranged between outer panel and inner panel force sensors. The arrangement of a plurality of force sensors leads to a reduction of the force acting on a single force sensor and thereby reduces the risk of damage to the individual force sensors by acting on the outer panel of the movable furniture part forces.

Weiters kann beispielsweise vorgesehen sein, dass wenigstens ein Kraftsensor an der Innenblende angeordnet ist. Werden alle vorgesehenen Kraftsensoren an der Innenblende angeordnet, bringt dies den Vorteil mit sich, dass die üblicherweise passend zum restlichen Möbel ausgeführte Außenblende getrennt vom bewegbaren Möbelteil hergestellt werden kann.Furthermore, it can be provided, for example, that at least one force sensor is arranged on the inner panel. If all provided force sensors are arranged on the inner panel, this has the advantage that the outer panel, which is usually designed to match the rest of the furniture, can be produced separately from the movable furniture component.

Bei dem bewegbaren Möbelteil kann es sich beispielsweise um eine Schublade, einen anhebbaren Kasten oder eine Möbeltüre handeln. Es könnte sich beispielsweise auch um eine Klappe oder dergleichen handeln.The movable furniture part may be, for example, a drawer, a liftable box or a furniture door. It could also be, for example, a flap or the like.

Die Erfindung betrifft weiters ein Möbel mit einem bewegbaren Möbelteil nach einem der Ansprüche 1 bis 4.The invention further relates to a piece of furniture with a movable furniture part according to one of claims 1 to 4.

Vorzugsweise ist dabei vorgesehen, dass das Möbel eine Antriebseinheit zum Antreiben des bewegbaren Möbelteils aufweist. Dadurch kann zumindest eine Unterstützung der Bewegung des bewegbaren Möbelteils durch einen Benutzer erfolgen.Preferably, it is provided that the furniture has a drive unit for driving the movable furniture part. This can be done by a user at least support the movement of the movable furniture part.

Weiters kann es vorteilhaft sein, wenn das Möbel eine Steuer- bzw. Regeleinrichtung zur Steuerung bzw. Regelung der Antriebseinheit aufweist. Diese ermöglicht die Anpassung der Leistung der Antriebseinheit an die von einem Benutzer auf das bewegbare Möbelteil aufgebrachte Kraft.Furthermore, it may be advantageous if the furniture has a control or regulating device for controlling or regulating the drive unit. This allows the adaptation of the power of the drive unit to the force applied by a user to the movable furniture part.

Die Signale des Kraftsensors bzw. der Kraftsensoren können einer im Möbel oder im bewegbaren Möbelteil angeordneten Auswerteeinheit zuführbar sein. In einer derartigen Auswerteeinheit können Rechenoperationen zur genaueren Bestimmung der benötigten Leistung der Antriebseinheit in Abhängigkeit von der Größe der vom Benutzer auf das bewegbare Möbelteil aufgebrachten Kraft erfolgen.The signals of the force sensor or of the force sensors can be fed to an evaluation unit arranged in the furniture or in the movable furniture part. In such an evaluation unit arithmetic operations for more accurate determination of the required power of the drive unit depending on the size of the force applied by the user to the movable furniture part force can be done.

Weiters kann vorgesehen sein, dass die Signale des wenigstens einen Kraftsensors der Auswerteeinheit über elektrische Leitungen zuführbar sind. Dies stellt eine einfache Alternative zu anderen aufwändigeren Formen der Signalübermittlung dar. Denkbar wäre aber auch eine berührungslose Signalübermittlung, beispielsweise über Funk.Furthermore, it can be provided that the signals of the at least one force sensor of the evaluation unit can be supplied via electrical lines. This represents a simple alternative to other more complex forms of signal transmission. It would also be conceivable, however, to use non-contact signal transmission, for example by radio.

Bei einer besonders bevorzugten Ausführungsform der Erfindung ist vorgesehen, dass die Kraftsensoren Dehnmessstreifen umfassen. Diese sind einfach anwendbar und bieten eine gute Auflösung. Vorzugsweise sind die Dehnmessstreifen elektrisch zu einer Vollbrücke (Wheatstonesche Brücke) geschalten. Das Verhältnis der gemessenen Brückenverstimmung zur vorgegebenen Speisespannung entspricht der aufsummierten relativen Längenänderung der Dehnmessstreifen.In a particularly preferred embodiment of the invention, it is provided that the force sensors comprise strain gauges. These are easy to use and offer a good resolution. Preferably, the strain gauges are electrically connected to a full bridge (Wheatstone bridge). The ratio of the measured bridge detuning to the specified supply voltage corresponds to the cumulative relative change in length of the strain gauges.

Die Erfindung betrifft weiters ein Möbel mit einem bewegbaren Möbelteil gemäβ Anspruch 1, einer Auswerteeinheit und wenigstens zwei piezoelektrischen Kraftsensoren zur Messung von auf die Außenblende des bewegbaren Möbelteils angreifenden Kräften, wobei die Signale der Kraftsensoren der Auswerteeinheit über elektrische Leitungen zuführbar sindThe invention further relates to a piece of furniture with a movable furniture part according to claim 1, an evaluation unit and at least two piezoelectric force sensors for measuring acting on the outer panel of the movable furniture part forces, wherein the signals of the force sensors of the evaluation are supplied via electrical lines

Ein derartiges Möbel geht beispielsweise aus der EP 1 323 363 A1 hervor. Bisher wurden die Kraftsignale der einzelnen Kraftsensoren einzeln an die Auswerteeinheit übermittelt und in dieser zur Bestimmung der auf das bewegbare Möbelteil ausgeübten Gesamtkraft addiert.Such furniture is for example from the EP 1 323 363 A1 out. So far, the force signals of the individual force sensors were individually transmitted to the evaluation and added in this to determine the force exerted on the movable furniture part total force.

Vorzugsweise wird vorgesehen, dass die von den Kraftsensoren zu der Auswerteeinheit führenden elektrischen Leitungen parallel zueinander und in Serie mit der Auswerteeinheit geschalten sind.It is preferably provided that the electrical leads leading from the force sensors to the evaluation unit are connected in parallel with each other and in series with the evaluation unit.

Dies bringt den Vorteil mit sich, dass die von den piezoelektrischen Kraftsensoren bei Detektion einer Kraft erzeugten elektrischen Ladungen bereits in aufsummierter Form der Auswerteeinheit zugeführt werden und daher der bisher vorgesehene Schritt zur Bestimmung der Gesamtkraft aus den von den einzelnen Kraftsensoren ermittelten Teilkräften entfallen kann.This has the advantage that the electric charges generated by the piezoelectric force sensors upon detection of a force are already supplied in summed form of the evaluation and therefore the previously provided step for Determination of the total force can be omitted from the determined by the individual force sensors partial forces.

Die Erfindung betrifft weiters ein Möbel mit einem bewegbaren Möbelteil gemäβ Anspruch 1 einer ¨Auswerteeinheit und wenigstens einem Kraftsensor zur Messung von auf die Außenblende des bewegbaren Möbelteils angreifenden Kräften, wobei die Signale des Kraftsensors der Auswerteeinheit zuführbar sind.The invention further relates to a piece of furniture with a movable furniture part according to claim 1 of an evaluation unit and at least one force sensor for measuring forces acting on the outer panel of the movable furniture part, wherein the signals of the force sensor can be fed to the evaluation unit.

Bisher wurde die Auswerteeinheit stationär im Möbel selbst angeordnet. Nachteilig ist daran, dass die von den Kraftsensoren am bewegbaren Möbelteil erzeugten analogen Signale relativ störempfindlich sind und bereits bei der Übertragung dieser Signale von den Kraftsensoren zu der stationär im Möbel angeordneten Auswerteeinheit Verschlechterungen der Signalqualität auftreten. Vorzugsweise ist nunmehr vorgesehen, dass die Auswerteeinheit mitfahrend im oder am bewegbaren Möbelteil angeordnet ist.So far, the evaluation unit was stationarily arranged in the furniture itself. The disadvantage is that the analog signals generated by the force sensors on the movable furniture part are relatively susceptible to interference and already occur in the transmission of these signals from the force sensors to the stationary arranged in the furniture evaluation unit deterioration of the signal quality. Preferably, it is now provided that the evaluation unit is arranged to ride in or on the movable furniture part.

Dadurch werden die von den Kraftsensoren erzeugten störempfindlichen Signale über eine so gering wie möglich gehaltene Strecke der Auswerteeinheit zugeführt, was zu einer erheblichen Verbesserung der Signalqualität führt.As a result, the interference-sensitive signals generated by the force sensors are fed over a distance that is kept as small as possible to the evaluation unit, which leads to a considerable improvement in the signal quality.

Weitere Einzelheiten und Vorteile der Erfindung ergeben sich anhand der nachfolgenden Figuren sowie der Figurenbeschreibung. Dabei zeigen:

Fig. 1
die perspektivische Ansicht eines Ausführungsbeispiels eines erfindungsgemäßen Möbels,
Fig. 2
eine Detailansicht des in Fig. 1 dargestellten Möbels,
Fig. 3
eine Detailansicht zu einem weiteren Ausführungsbeispiel eines erfindungsgemäßen Möbels,
Fig. 4a
eine Seitenansicht des in Fig. 1 dargestellten Möbels,
Fig. 4b
eine Detailansicht des in Fig. 4a dargestellten Möbels,
Fig. 5
die beispielhafte Darstellung einer elektrischen Schaltungsanordnung eines erfindungsgemäßen Möbels,
Fig. 6
eine Schnittdarstellung eines Ausführungsbeispiels eines erfindungsgemäßen bewegbaren Möbelteils,
Fig. 7
eine Schnittdarstellung eines weiteren Ausführungsbeispiels eines erfindungsgemäßen Möbels,
Fig. 8
die schematische Darstellung eines weiteren Ausführungsbeispiels eines erfindungsgemäßen Möbels,
Fig. 9
eine Schnittdarstellung des in Fig. 8 dargestellten Möbels,
Fig. 10a,b
zwei Schnittdarstellungen eines weiteren Ausführungsbeispiels eines erfindungsgemäßen bewegbaren Möbelteils,
Fig. 11 a-c
schematische Schnittdarstellungen durch das in Fig. 10 dargestellten bewegbaren Möbelteils für verschiedene Benutzungsfälle und
Fig. 12
die elektrische Schaltung der Kraftsensoren im Ausführungsbeispiel nach den Fig. 10 und 11a-c.
Further details and advantages of the invention will become apparent from the following figures and the description of the figures. Showing:
Fig. 1
the perspective view of an embodiment of a piece of furniture according to the invention,
Fig. 2
a detailed view of the in Fig. 1 illustrated furniture,
Fig. 3
a detailed view of another embodiment of a piece of furniture according to the invention,
Fig. 4a
a side view of the in Fig. 1 illustrated furniture,
Fig. 4b
a detailed view of the in Fig. 4a illustrated furniture,
Fig. 5
the exemplary representation of an electrical circuit arrangement of a piece of furniture according to the invention,
Fig. 6
a sectional view of an embodiment of a movable furniture part according to the invention,
Fig. 7
a sectional view of another embodiment of a piece of furniture according to the invention,
Fig. 8
the schematic representation of another embodiment of a piece of furniture according to the invention,
Fig. 9
a sectional view of the in Fig. 8 illustrated furniture,
Fig. 10a, b
two sectional views of a further embodiment of a movable furniture part according to the invention,
Fig. 11 ac
schematic sectional views through the in Fig. 10 shown movable furniture part for different cases of use and
Fig. 12
the electrical circuit of the force sensors in the embodiment of the Fig. 10 and 11a-c ,

Fig. 1 zeigt ein Möbel 9 mit einem erfindungsgemäßen bewegbaren Möbelteil 1, welches in diesem Ausführungsbeispiel als Schublade ausgebildet ist. Das bewegbare Möbelteil 1 weist dabei eine Außenblende 2 auf, an der ein Griff 10 angeordnet ist. Fig. 1 shows a piece of furniture 9 with a movable furniture part 1 according to the invention, which is designed as a drawer in this embodiment. The movable furniture part 1 in this case has an outer panel 2, on which a handle 10 is arranged.

Fig. 2 zeigt das in Fig. 1 dargestellte Möbel 9 im Detail im Bereich des bewegbaren Möbelteils 1 bei entfernter Außenblende 2. Zu erkennen sind die Innenblende 3, an welcher vier Kraftsensoren 4 (hier: piezoelektrische Kraftsensoren) angeordnet sind. Fig. 2 shows that in Fig. 1 illustrated furniture 9 in detail in the area of the movable furniture part 1 with the outer panel 2. It can be seen the inner panel 3, to which four force sensors 4 (here: piezoelectric force sensors) are arranged.

Fig. 3 zeigt ein weiteres Ausführungsbeispiel eines erfindungsgemäßen bewegbaren Möbelteils 1, bei der nur ein zentral angeordneter Kraftsensor 4 vorgesehen ist. Fig. 3 shows a further embodiment of a movable furniture part 1 according to the invention, in which only a centrally arranged force sensor 4 is provided.

Fig. 4a zeigt eine Seitendarstellung des in Fig. 1 dargestellten Möbels 9 mit teilweise herausbewegtem Möbelteil 1. Zu erkennen sind nun die Innenblende 3, die Außenblende 2 sowie die zwischen Innenblende 3 und Außenblende 2 angeordneten Kraftsensoren 4. Fig. 4a shows a page representation of the in Fig. 1 To be recognized are now the inner panel 3, the outer panel 2 and the arranged between the inner panel 3 and outer panel 2 force sensors. 4

Fig. 4b zeigt den in Fig. 4a mit A bezeichneten Bereich im Detail. Fig. 4b shows the in Fig. 4a Area marked A in detail.

Fig. 5 zeigt beispielhaft die Schaltungsanordnung eines Möbels 1, bei der vier piezoelektrischen Kraftsensoren 4 über Leitungen 8 parallel zueinander und in Serie mit einer Auswerteeinheit 7 geschalten sind. Die Auswerteeinheit 7 steht über weitere Leitungen mit der Regeleinheit 6 zur Regelung der Antriebseinheit 5, welche in diesem Ausführungsbeispiel ein Elektromotor ist, in Verbindung. Fig. 5 shows by way of example the circuit arrangement of a piece of furniture 1, in which four piezoelectric force sensors 4 are connected via lines 8 parallel to each other and in series with an evaluation unit 7. The evaluation unit 7 is connected via further lines with the control unit 6 for controlling the drive unit 5, which is an electric motor in this embodiment, in conjunction.

Fig. 6 zeigt eine Schnittdarstellung eines Ausführungsbeispiels eines erfindungsgemäßen Möbels 9 mit einem als Schublade ausgeführten bewegbaren Möbelteil 1, bei dem zwischen Innenblende 3 und Außenblende 2 Kraftsensoren 4 angeordnet sind. Die Auswerteeinheit 7 ist dabei mitfahrend am bewegbaren Möbelteil 1 angeordnet. Die von den Kraftsensoren 4 zur Auswerteeinheit 7 führenden elektrischen Leitungen 8 sind strichliert dargestellt. Fig. 6 shows a sectional view of an embodiment of a furniture according to the invention 9 with a designed as a drawer movable furniture part 1, in which between the inner panel 3 and outer panel 2 force sensors 4 are arranged. The evaluation unit 7 is arranged along the movable furniture part 1 ride. The leading from the force sensors 4 to the evaluation unit 7 electrical lines 8 are shown by dashed lines.

Fig. 7 zeigt eine Schnittdarstellung eines weiteren Ausführungsbeispiels eines erfindungsgemäßen Möbels 9 mit einem als Schublade ausgeführten bewegbaren Möbelteil 1, wobei die Außenblende 2 über die Innenblende 3 übersteht. Schematisch ist das Einklemmen eines Objekts 11 zwischen Außenblende 2 und Möbel 9 dargestellt. Durch die auf die Außenblende 2 ausgeübte Kraft kommt es zu einem Verschwenken der Außenblende 2 in die durch Pfeil 12 gezeigte Richtung. Dies wird von den Kraftsensoren 4 registriert und über nicht dargestellte Leitungen der Regeleinheit 6 gemeldet, welche sofort die Antriebseinheit 5 stoppt und beispielsweise auch ein teilweises Herausbewegen des bewegbaren Möbelteils 1 zur Freigabe des Objekts 11 befehlen kann. Hierdurch wird ein Klemmschutz realisiert. Fig. 7 shows a sectional view of another embodiment of a piece of furniture 9 according to the invention with a designed as a drawer movable furniture part 1, wherein the outer panel 2 projects beyond the inner panel 3. Schematically, the pinching of an object 11 between outer panel 2 and furniture 9 is shown. By the force exerted on the outer panel 2 there is a pivoting of the outer panel 2 in the direction shown by arrow 12. This is registered by the force sensors 4 and reported via lines of the control unit 6, not shown, which immediately stops the drive unit 5 and, for example, can also command a partial removal of the movable furniture part 1 to release the object 11. As a result, a pinch protection is realized.

Fig. 8 zeigt ein weiteres Ausführungsbeispiel eines erfindungsgemäßen Möbels 9, welches als Schrank ausgeführt ist. Beim bewegbaren Möbelteil 1 handelt es sich um eine Möbeltüre, welche über einen Griff 10 öffenbar ist. Fig. 8 shows a further embodiment of a furniture 9 according to the invention, which is designed as a cabinet. The movable furniture part 1 is a furniture door, which can be opened via a handle 10.

Fig. 9 zeigt eine Schnittdarstellung durch das in Fig. 8 dargestellte Möbel 9 bei geschlossener Möbeltüre. Erkennbar ist, dass das bewegbare Möbelteil 1, also die Möbeltüre, eine Innenblende 3 sowie eine Außenblende 2 aufweist, zwischen denen Kraftsensoren 4 angeordnet sind. Fig. 9 shows a sectional view through the in Fig. 8 illustrated furniture 9 with closed furniture door. It can be seen that the movable furniture part 1, so the furniture door, an inner panel 3 and an outer panel 2, between which force sensors 4 are arranged.

Fig. 10a zeigt ein weiteres Ausführungsbeispiel eines erfindungsgemäßen bewegbaren Möbelteils 1. Zwischen Innenblende 3 und Außenblende 2 sind vier Kraftsensoren 4 angeordnet, von denen in Fig. 10 nur zwei Kraftsensoren 4 erkennbar sind, wobei jeder Kraftsensor 4 zwei auf einem biegefähigen Stab 13 angeordnete Dehnmessstreifen 16-23 aufweist. Jeder biegefähige Stab 13 ist über ein Zwischenstück 15 an der Innenblende 3 und über ein Zwischenstück 14 an der Außenblende 2 befestigt. Fig. 10b zeigt die in Fig. 10a nicht erkennbaren Kraftsensoren 4. Fig. 10a shows a further embodiment of a movable furniture part according to the invention 1. Between inner panel 3 and outer panel 2 four force sensors 4 are arranged, of which in Fig. 10 only two force sensors 4 can be seen, each force sensor 4 has two arranged on a bendable rod 13 strain gauges 16-23. Each bendable rod 13 is attached via an intermediate piece 15 on the inner panel 3 and an intermediate piece 14 on the outer panel 2. Fig. 10b shows the in Fig. 10a unrecognizable force sensors 4.

Die Fig. 11a-c zeigt das in Fig. 10 dargestellte bewegbare Möbelteil 1 für verschiedene Benutzungssituationen. In Fig. 11a übt der Benutzer zentral an der Außenblende 2 eine Druckkraft F aus, wodurch sich die mit den Zwischenstücken 15 verbundenen Enden der Stäbe 13 in Richtung der Innenblende 3 biegen. In Fig. 11b übt der Benutzer zentral an der Außenblende 2 eine Zugkraft F aus, wodurch sich die mit den Zwischenstücken 15 verbundenen Enden der Stäbe 13 in Richtung der Außenblende 2 biegen. In Fig. 11c übt der Benutzer an der Oberseite der Außenblende 2 eine Zugkraft F aus, wodurch sich das mit dem Zwischenstück 15 verbundene Ende des oberen Stabes 13 in Richtung der Außenblende 2 und das mit dem Zwischenstück 15 verbundene Ende des unteren Stabes 13 in Richtung der Innenblende 3 verbiegt.The Fig. 11a-c shows that in Fig. 10 shown movable furniture part 1 for different situations of use. In Fig. 11a the user exerts a pressure force F centrally on the outer panel 2, whereby the ends of the rods 13 connected to the intermediate pieces 15 bend in the direction of the inner panel 3. In Fig. 11b the user exercises centrally on the outer panel 2, a tensile force F, resulting in the with the intermediate pieces 15th connected ends of the rods 13 in the direction of the outer panel 2 bend. In Fig. 11c the user exerts on the upper side of the outer panel 2 a tensile force F, whereby the connected to the intermediate piece 15 end of the upper rod 13 in the direction of the outer panel 2 and the end connected to the intermediate piece 15 of the lower rod 13 bends in the direction of the inner panel 3 ,

Fig. 12 zeigt die elektrische Schaltung 12 der Dehnmessstreifen 17-23 des in den Fig. 10a,b und 11 a-c dargestellten Ausführungsbeispiels. Die Dehnmessstreifen 17-23 sind zu einer Vollbrücke (Wheatstonesche Brücke) verschaltet, wobei die Brückenverstimmung UM im Verhältnis zur Speisespannung UB ein Maß für die aufsummierte relative Längenänderung der Dehnmessstreifen 17-23 und somit für den Betrag der detektierten Kraft ist. Die Brückenverstimmung UM wird in einem Verstärker 24 verstärkt und der Regeleinheit 6 zugeführt. Die Regeleinheit 6 steht mit der als Motor ausgeführten Antriebseinheit 5 in Verbindung. Fig. 12 shows the electrical circuit 12 of the strain gauges 17-23 of the in the Fig. 10a , b and 11 ac illustrated embodiment. The strain gauges 17-23 are connected to a full bridge (Wheatstone bridge), wherein the Brückenverstimmung UM in relation to the supply voltage U B is a measure of the summed relative change in length of the strain gauges 17-23 and thus for the amount of detected force. The bridge detuning UM is amplified in an amplifier 24 and fed to the control unit 6. The control unit 6 communicates with the drive unit 5 designed as a motor.

Claims (13)

  1. Movable furniture part with at least one force sensor to measure the forces acting on one outer panel of the movable furniture part, characterized in that the movable furniture part (1) has an inner panel (3) behind the outer panel (2) when viewed from the front and at a distance therefrom and in that the at least one force sensor (4) is disposed between outer panel (2) and inner panel (3).
  2. Movable furniture part according to claim 1, characterized in that the movable furniture part (1) has at least two, preferably at least three force sensors (4) disposed between outer panel (2) and inner panel (3).
  3. Movable furniture part according to claim 1 or 2, characterized in that at least one force sensor (4) is disposed on the inner panel (3).
  4. Movable furniture part according to one of claims 1 to 3, characterized in that the force sensors (4) include strain gauges (17-23).
  5. Movable furniture part according to claim 4, characterized in that the strain gauges (17-23) are electrically connected to a full bridge.
  6. Movable furniture part according to one of claims 1 to 5, characterized in that the movable furniture part (1) is a drawer or a furniture door.
  7. Furniture with a movable furniture part according to one of claims 1 to 6.
  8. Furniture according to claim 7, characterized in that it has a drive unit (5) to drive the movable furniture part (1).
  9. Furniture according to claim 7 or 8, characterized in that it has a control and/or regulating device (6) to control and/or regulate the drive unit (5).
  10. Furniture according to one of claims 7 to 9, characterized in that the signals from the at least one force sensor (4) can be fed to an evaluation unit (7) disposed in the furniture (9) or in the movable furniture part (1).
  11. Furniture according to claim 10, characterized in that the signals from the at least one force sensor (4) can be transmitted via electrical cables (8) to the evaluation unit (7).
  12. Furniture with a movable furniture part according to claim 1, an evaluation unit and at least two piezo-electric force sensors to measure forces acting on the outer panel of the movable furniture part, whereby the signals from the force sensors can be fed via electrical cables to the evaluation unit, and whereby the electrical cables leading from the force sensors (4) to the evaluation unit (7) are connected in parallel with each other and in series with the evaluation unit (7).
  13. Furniture with a movable furniture part according to claim 1, an evaluation unit and at least one force sensor to measure forces acting on the outer panel of the movable furniture part, whereby the signals from the force sensor can be fed to the evaluation unit, and whereby the evaluation unit (7) is disposed so as to travel along in or on the movable furniture part (1).
EP04789565A 2003-12-17 2004-10-29 Displaceable piece of furniture Active EP1694162B1 (en)

Applications Claiming Priority (2)

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AT0203603A AT413935B (en) 2003-12-17 2003-12-17 MOVABLE FURNITURE PART
PCT/AT2004/000376 WO2005058092A1 (en) 2003-12-17 2004-10-29 Displaceable piece of furniture

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EP1694162B1 true EP1694162B1 (en) 2011-08-03

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JP (1) JP2007514484A (en)
CN (1) CN100459906C (en)
AT (2) AT413935B (en)
AU (1) AU2004298280B2 (en)
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WO (1) WO2005058092A1 (en)

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EP1694162A1 (en) 2006-08-30
AU2004298280B2 (en) 2009-09-24
CN100459906C (en) 2009-02-11
CN1893856A (en) 2007-01-10
US7500400B1 (en) 2009-03-10
ATA20362003A (en) 2005-11-15
ES2370249T3 (en) 2011-12-13
AT413935B (en) 2006-07-15
WO2005058092A1 (en) 2005-06-30
JP2007514484A (en) 2007-06-07
AU2004298280A1 (en) 2005-06-30
ATE518449T1 (en) 2011-08-15

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