DE102010046769A1 - Lifting column unit for electromotive height adjustment of piece of furniture, particularly table of table arrangement, has lifting column, particularly telescopic lifting column and electric drive motor in motor housing - Google Patents

Abstract

The lifting column unit (10,12) has a lifting column, particularly telescopic lifting column and an electric drive motor (14,16) in a motor housing (36) for extending and retracting the lifting column. A control device (18,20) is provided in the motor housing for controlling the drive motor. Independent claims are also included for the following: (1) a piece of furniture with a base frame; and (2) a table arrangement with an electric distribution unit.

Description

The present invention relates to a lifting column unit for the electromotive height adjustment of a piece of furniture, in particular a table, an electric motor height adjustable piece of furniture, in particular a table, and a table assembly for one or more workstations with at least two arranged in block position electric motor height adjustable tables.

An electromotive height-adjustable piece of furniture may for example be a piece of seating, lying or table furniture. The table may be, for example, a desk, work desk or a lectern or a desk and a lectern in a, also called sit-sit table, act. A table height adjustment is often referred to as a Tischliftsystem. The height adjustment is normally infinitely variable.

In the table area, the height adjustment is used in particular for ergonomic table applications.

More specifically, the present invention relates to intelligent power train electromotive furniture with flexible power supply.

In electromotive furniture drives today often external / additional control devices are used. Since these must each be adapted to the technical characteristics of the drive devices, such as electric drive motors, it is imperative that a technically adapted control device is used.

In particular, if similar control devices, possibly only with internal technical changes, such as hardware or software are used, there is a likelihood of confusion for the end customer if the end customer does not pay attention to the details of the nameplates of the control devices and / or the Hubsäuleneinheiten and the associated operating instructions , In addition, external control devices are additional components of furniture, which must also be mounted accordingly.

Since a fixed association between a respective drive device and the associated control device can be produced only with great effort during the manufacturing process, the control device can only be set to generally valid properties for all drive devices of the same design. In the case of service or replacement of components / components, this assignment is no longer given and, if necessary, must be re-established.

In addition, the power supply devices of the drive devices are usually integrated in the control device today or, if they are modular or designed as external power supply devices, it is used only for one control device.

The present invention is therefore based on the object to exclude a likelihood of confusion regarding the control devices for the electromotive height adjustment at the end customer, but at least significantly reduce.

• – eine Hubsäule, insbesondere Teleskophubsäule,
• – einen elektrischen Antriebsmotor in einem Motorgehäuse zum Aus- und Einfahren der Hubsäule und
• – eine Steuereinrichtung in dem Motorgehäuse zur Steuerung des Antriebsmotors.

According to the invention this object is achieved by a Hubsäuleneinheit for electromotive height adjustment of a piece of furniture, in particular a table, comprising:

• A lifting column, in particular telescopic lifting column,
• - An electric drive motor in a motor housing for extending and retracting the lifting column and
• - A control device in the motor housing for controlling the drive motor.

Furthermore, this object is achieved by an electromotive height-adjustable piece of furniture, in particular a table comprising at least two Hubsäuleneinheiten according to one of claims 1 to 5.

Finally, this object is also achieved by a table arrangement for one or more workstations with at least two electric motor height-adjustable tables arranged in block position according to one of claims 7 to 11, characterized in that exactly one voltage supply device is provided for supplying all control devices.

In the lifting column unit it can be provided that the control device has at least one plug connection, preferably exactly two plug connections, for a bus data line.

In particular, it can be provided that the at least one plug-in connection also serves for the voltage supply.

Advantageously, the control device is designed self-learning. This makes it possible to detect tolerances in the drive device and changes during runtime. This additional information is used to optimize the running characteristics and faster or better detection of faults or incidents, including collisions with other components.

According to a particular embodiment, a voltage supply device for the Drive motor provided in a coupled to the motor housing module.

According to a particular embodiment of the electromotive height-adjustable piece of furniture, it is an electric height-adjustable table, especially a desk and standing desk in one, the electromotive height adjustable base frame with at least two Hubsäuleneinheiten, a table top, which is arranged on the base, and at least one operating device for activation at least one of the at least two control devices via a respective bus data line comprises.

Advantageously, it can be provided that the control devices are interconnected with each other and / or with the bus data line (s) for the operating device (s) of the same type bus data lines.

Conveniently, the control means are capable of automatically detecting respective drive motors not belonging to the same lifting column unit and preferably controlling the drive motors synchronously.

According to a particular embodiment of the invention, exactly one voltage supply device is provided, which is preferably connected to at least one of the at least two control devices via a bus data line of the same type as the bus data line (s) for the operating device (s).

Advantageously, the plug connections of the control devices and / or the operating devices and / or the power supply device are designed to be reverse polarity protected.

Finally, in the table arrangement, an electrical distribution device for the simultaneous height adjustment of a maximum of as many tables as the voltage supply device provides voltage, may be provided.

The invention is based on the surprising finding that through the integration of a control device in each Hubsäuleneinheit no likelihood of confusion exists. In addition, the drive device properties can thereby be assigned directly to the respective drive device. Furthermore, the technical properties and functions of the individual drive devices can be better adapted thereby and thus the comfort can be increased. In addition, it can be used to reduce assembly costs.

If even then only a single power supply device is provided, the voltage supply for the respective requirement can thereby be easily adapted, and the standby power consumption and the costs can thereby be further reduced, so that multiple use of the same power supply device for a plurality of systems, such as tables, is made possible.

Further features and advantages of the invention will become apparent from the appended claims and the following description in which several embodiments are explained in detail with reference to the schematic drawings.

Showing:

1 a block diagram of an electric height adjustable table according to a particular embodiment of the invention;

2 a block diagram of an electric height adjustable table according to another particular embodiment of the invention;

3 a block diagram of a table arrangement for four workstations with four arranged in block position electric motor height adjustable tables according to a particular embodiment of the invention;

4 a detail view of a Hubsäuleneinheit according to a particular embodiment of the invention; and

5 a perspective view obliquely from above of a motorized height adjustable table according to a particular embodiment of the invention partially in review.

From the block diagram of 1 shows that the electric height adjustable table two Hubsäuleneinheiten 10 and 12 , which belong to a motorized height adjustable underframe (not shown), wherein each of the two Hubsäuleneinheiten 10 and 12 in a respective motor housing 36 in each case a lifting column (not shown), an electric drive motor 14 respectively. 16 and a respective control device 18 respectively. 20 having. Each of the two control devices 18 and 20 is via a single control device 22 activated in the form of a manual switch, which via a bus data line 26 with the control device 18 and via a structurally identical bus data line 28 between the two control devices 18 and 20 indirectly also with the control device 20 connected is. Furthermore, a single power supply device 32 for the electrical supply of the two control devices 18 and 20 and the drive motors 14 and 16 via an identical bus data line 34 with the control device 20 connected. The power supply device 32 has at least one plug-in connection for the bus data line. The control devices 18 and 20 are each alone capable of the respective associated drive motor 14 respectively. 16 to control. In addition, they are over said bus data line 28 capable of doing the other drive motor 14 respectively. 16 to recognize and depending on the configuration if necessary to control synchronously.

Each control device 18 and 20 Receives information about the maximum technical properties and limit values of the respective drive motor during assembly in the factory 14 respectively. 16 , In addition, each of the control devices 18 and 20 be equipped with a self-learning program part to improve the function. The latter makes it possible to detect tolerances in the drive motor and changes during runtime. This additional information is used to optimize the running characteristics and faster or better detection of faults or incidents, including collisions with other components.

• a) Ausgabe einer Fehlermeldung – kein Betrieb möglich.
• b) Synchronisation auch von Antriebsmotoren unterschiedlicher Bauart im Rahmen der technischen Möglichkeiten der Antriebe. Die hierfür erforderlichen Daten werden zwischen den einzelnen Steuereinrichtungen innerhalb eines elektromotorisch höhenverstellbaren Tisches über die jeweilige Bus-Datenleitung bei der Initialisierung des Tisches ausgetauscht.
• c) Bei entsprechender Konfiguration getrennte Ansteuerung von einzelnen oder Gruppen der gegebenenfalls verschiedenen Antriebsmotoren innerhalb eines Tisches.

Furthermore, the number of connected drive motors of an electric height adjustable table and their design on the bus data line (s) of the control devices 18 and 20 be detected automatically. If drive motors of different types are detected together in a table that can be adjusted by electric motor height, the control device optionally behaves in different ways, depending on the configuration.

• a) Output of an error message - no operation possible.
• b) Synchronization of drive motors of different types in the context of the technical possibilities of the drives. The data required for this purpose are exchanged between the individual control devices within an electric height-adjustable table via the respective bus data line during the initialization of the table.
• c) With appropriate configuration separate control of individual or groups of possibly different drive motors within a table.

If drive motors of the same type are detected, they are automatically controlled or driven synchronously. Optionally, however, a configuration in groups and / or as individual drives is possible, which in turn can then be controlled / driven separately.

The operation by the user takes place via the operating devices 22 and 24 , By using identical bus data cables, it is possible to install the operating devices anywhere in the system in the wiring.

Because the bus data lines 28 and 30 also integrate the cables (cables) for the power supply of all components, the plug-in connections of the bus data cables are designed accordingly polarity reversal. The control devices in the drives are equipped as standard with at least one or more plug connections for the bus data line.

Since all connectors are identical, drive motors, controls and power supplies can be connected in any order with identical bus data lines.

It is possible to adapt the voltage supply devices to the customer's wishes in such a way that either power supply devices (power supplies) with different performance or possibly multiple power supply devices (power supplies) of the same type are used in a table or a table arrangement.

The in the 2 The embodiment shown differs from that in FIG 1 essentially in that the power supply device 32 in one with the motor housing 36 coupled module 38 is provided. This also requires a different arrangement of the operating device 22 ,

In the 3 is again a table arrangement 40 from four electric height adjustable tables 42 . 44 . 46 . 48 shown. The tables correspond in principle to the table of 1 but with a single power supply 32 is intended for all four tables. Consequently, the power supply device 32 four plug connections for bus data cables 50 . 52 . 54 and 56 on. The tables are arranged in block position.

An optional electrical distribution device (not shown) is capable of only one power supply 32 different tables 42 . 44 . 46 respectively. 48 to operate. Via the bus data lines 50 . 52 . 54 and 56 This ensures that only as many tables can be operated at the same time as the power supply 32 Can provide voltage. This is particularly advantageous, for example, when in an office several electric height adjustable tables are to be operated, which are preferably in a blocking position, in which case the tables of a block on the power supply device 32 be supplied with voltage. This configuration has the advantage that the stand-by power consumption and the costs are incurred only for a power supply device and not at each individual table.

4 shows the upper part of a lifting column 58 , at the upper end of a motor housing 36 is arranged, in which a drive motor 14 and a control device 18 for the drive motor 14 with two identical plug connections 60 and 62 for respective bus data lines.

Finally shows 5 an electric height adjustable table 64 with an electric height adjustable underframe 66 on which is a tabletop 67 located. The undercarriage 66 has two lifting column units 68 and 70 on. Each of the lifting column units 68 and 70 each has a motor housing 72 respectively. 74 in which in each case a drive motor and a control device (not shown) are located on a respective board. A power supply device 76 for a drive motor is in one with the motor housing 72 coupled module 78 arranged. Via an operating device 80 over a bus data line 82 with the control device and the drive motor in the motor housing 74 connected via a bus data line 84 between the two motor housings 72 and 74 Both lifting columns are synchronously height adjustable.

The modular connection between the drive motor in the motor housing 72 and the power supply device 76 is designed so that the necessary plug-in connections for further cabling of the bus data lines are still available.

The features of the invention disclosed in the foregoing description, in the drawings and in the claims may be essential both individually and in any combination for the realization of the invention in its various embodiments.

LIST OF REFERENCE NUMBERS

10, 12

Hubsäuleneinheiten

14, 16

drive motor

18, 20

control devices

22

operating device

26, 28

Bus data lines

32

Power supply means

34

Bus data line

36

motor housing

38

module

40

table arrangement

42, 44, 46, 48

tables

50, 52, 54, 56

Bus data lines

58

Lifting column

60, 62

plug connections

64

table

66

undercarriage

67

tabletop

68, 70

Hubsäuleneinheiten

72, 74

motor housing

76

Power supply means

78

module

80

operating device

82

Bus data line

84

Bus data line

Claims (13)

Lifting column unit ( 10 . 12 ; 68 . 70 ) for the electromotive height adjustment of a piece of furniture, in particular a table ( 42 . 44 . 46 . 48 ), comprising: - a lifting column, in particular a telescopic lifting column, - an electric drive motor ( 14 . 16 ) in a motor housing ( 36 ) for extending and retracting the lifting column and - a control device ( 18 . 20 ) in the motor housing ( 36 ) for controlling the drive motor ( 14 . 16 ). Lifting column unit according to claim 1, characterized in that the control device ( 18 . 20 ) at least one plug connection ( 60 . 62 ), preferably exactly two plug-in connections, for a bus data line. Lifting column unit according to claim 2, characterized in that the at least one plug-in connection ( 60 . 62 ) also serves for voltage supply. Lifting column unit according to one of claims 1 to 3, characterized in that the control device ( 18 . 20 ) is self-learning. Lifting column unit according to one of claims 1 to 4, characterized in that a voltage supply device ( 32 ; 76 ) for the drive motor ( 14 . 16 ) is provided in a coupled to the motor housing module. Electronically height-adjustable piece of furniture, in particular a table ( 42 . 44 . 46 . 48 ) comprising at least two lifting column units ( 10 . 12 ) according to one of the preceding claims. Piece of furniture according to claim 6, characterized in that it is a motorized height-adjustable table ( 64 ), in particular a desk and a lectern in one, which is an electric height-adjustable undercarriage ( 66 ) with at least two lifting column units ( 10 . 12 ; 68 . 70 ), a table top ( 67 ), which are placed on the subframe ( 66 ) is arranged, and at least one operating device ( 22 ; 80 ) for activating at least one of the at least two control devices ( 18 . 20 ) via a respective bus data line. Piece of furniture according to claim 6 or 7, characterized in that the control devices ( 18 . 20 ) via each other and / or with the bus data line (s) ( 26 . 28 ; 82 . 84 ) for the operating device (s) ( 80 ) identical bus data lines ( 26 . 28 ; 82 . 84 ) are connected. Piece of furniture according to claim 8, characterized in that the control devices ( 18 . 20 ) are not capable of the same lifting column unit ( 10 respectively. 12 ; 68 respectively. 70 ) automatically recognize associated drive motors and preferably to control the drive motors synchronously. Piece of furniture according to one of claims 5 to 9, characterized in that exactly one power supply device ( 32 ; 76 ), preferably via a bus data line (s) ( 26 . 28 ) for the operating device (s) identical bus data line ( 34 ) with at least one of the at least two control devices ( 20 ) connected is. Piece of furniture according to one of claims 6 to 10, characterized in that the plug connections ( 60 . 62 ) of the control devices and / or the operating devices and / or the power supply device ( 32 respectively. 76 ) are executed reverse polarity protected. Table arrangement ( 40 ) for one or more workstations with at least two electromotive height-adjustable tables ( 42 . 44 . 46 . 48 ) according to one of claims 7 to 11, characterized in that exactly one voltage supply device ( 32 ) for the supply of all control devices ( 18 . 20 ) is provided. Table arrangement ( 40 ) according to claim 12, characterized in that an electrical distribution device for the simultaneous height adjustment of a maximum of as many tables as the power supply device ( 32 ) Voltage is provided is provided.

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