EP3639694B1 - Height adjustable table - Google Patents

Description

The invention relates to a height-adjustable table according to the preamble of claim 1.

A height-adjustable table of the type mentioned is from the patent document SE 504 292 C2 famous. This table consists of a table base, a first and a second pair of struts and a table top support, the first pair of struts being connected on the one hand to the table base and on the other hand to the second pair of struts and the second pair of struts being connected on the one hand to the first pair of struts and on the other hand to the table top support, whereby the first pair of struts has a first support strut articulated to the table base and a first adjusting strut running at least partially parallel to the first support strut, the second pair of struts having a second support strut articulated to the table top support and a second support strut at least partially parallel to the second support strut Has adjusting strut. This table has a connecting device for connecting the two pairs of struts, a connecting strut being provided with the reference numeral 9 or 9a in the single figure to synchronize the movements of the two pairs of struts. To determine the desired height, several gas pressure springs interacting with the strut pairs are provided.

The invention is based on the object of improving a height-adjustable table of the type mentioned at the beginning. In particular, while maintaining the despite complete pre-assembly space-saving portability a table with a less complicated height adjustment can be created.

This object is achieved with a table of the type mentioned at the beginning by the features listed in the characterizing part of claim 1.

According to the invention it is provided that the first support strut is articulated to the second support strut via a first joint, the first support strut is articulated to the second support strut via a second joint and the first support strut is articulated to the second support strut via a third joint and that the first strut is displaceably mounted on the table base and the second strut is displaceably mounted on the table top support.

In other words, the solution according to the invention is characterized in that the two strut pairs are designed to be directly connected to one another and the two adjusting struts are each displaceably mounted on the table foot or table top side. Apart from the fact that this makes it possible to dispense with the aforementioned connecting device and also the aforementioned connecting strut, this provision also results, which will be explained in more detail below, a very simple way of attaching a drive for the height adjustment to the table. In this regard, and to that extent in anticipation of the further, announced, more detailed description, it is particularly preferred to provide an actuating drive which interacts with the second adjusting strut on the tabletop support.

Other advantageous developments of the height-adjustable table according to the invention emerge from the dependent claims.

For the sake of completeness, reference is made to the following, further documents: DE 299 20 971 U1 , DE 20 2005 007 700 U1 , CN 204048597 U1 .

The table according to the invention, including its advantageous developments according to the dependent claims, is explained in more detail below with reference to the graphic representation of three exemplary embodiments.

Figur 1

perspektivisch eine erste Ausführungsform des erfindungsgemäßen Tischs in voll ausgefahrener Position;

Figur 2

als Schnittdarstellung von der Seite den Tisch gemäß Figur 1 in voll ausgefahrener Position;

Figur 3

als Schnittdarstellung von der Seite den Tisch gemäß Figur 1 in halb hoher Position;

Figur 4

als Schnittdarstellung von der Seite den Tisch gemäß Figur 1 in zusammengeklappter Position;

Figur 5

als Seitenansicht den Tisch gemäß Figur 1 in halb hoher Position;

Figur 6

als Ausschnitt aus Figur 1 perspektivisch den Verbindungsbereich zwischen dem Tischplattenträger und dem zweiten Strebenpaar;

Figur 7

als Ausschnitt aus Figur 1 perspektivisch den Verbindungsbereich zwischen dem ersten und dem zweiten Strebenpaar;

Figur 8

als Ausschnitt aus Figur 1 perspektivisch den Verbindungsbereich zwischen dem ersten Strebenpaar und dem Tischfuß;

Figur 9

als Seitenansicht eine zweite Ausführungsform des erfindungsgemäßen Tischs mit einer Neigungsverstellung für die Tischplatte per Exzenter;

Figur 10

als Ausschnittsvergrößerung von der Seite der Tisch gemäß Figur 9 bei horizontalem Tischplattenträger in einer ersten Stellung des Exzenters;

Figur 11

als Ausschnittsvergrößerung von der Seite der Tisch gemäß Figur 9 bei schräg gestelltem Tischplattenträger in einer zweiten Stellung des Exzenters; und

Figur 12

als Seitenansicht eine dritte Ausführungsform des erfindungsgemäßen Tischs mit einer Neigungsverstellung für die Tischplatte per nur schematisch dargestellter Längenverstellung der beiden Tragstreben.

It shows

Figure 1

in perspective a first embodiment of the table according to the invention in the fully extended position;

Figure 2

as a sectional view from the side according to the table Figure 1 in fully extended position;

Figure 3

as a sectional view from the side according to the table Figure 1 in half-high position;

Figure 4

as a sectional view from the side according to the table Figure 1 in collapsed position;

Figure 5

as a side view the table according to Figure 1 in half-high position;

Figure 6

as a cutout Figure 1 in perspective the connection area between the table top support and the second pair of struts;

Figure 7

as a cutout Figure 1 in perspective the connection area between the first and the second pair of struts;

Figure 8

as a cutout Figure 1 in perspective the connection area between the first pair of struts and the table base;

Figure 9

a side view of a second embodiment of the table according to the invention with an inclination adjustment for the table top by eccentric;

Figure 10

as a detail enlargement from the side of the table according to Figure 9 with a horizontal tabletop support in a first position of the eccentric;

Figure 11

as a detail enlargement from the side of the table according to Figure 9 with an inclined table top support in a second position of the eccentric; and

Figure 12

a side view of a third embodiment of the table according to the invention with an inclination adjustment for the table top by adjusting the length of the two support struts, which is only shown schematically.

The one in the Figures 1 to 12 The height-adjustable table shown consists initially in a known manner of a table leg 0, a first and a second pair of struts 1, 2 and a table top support 3 for a table top 14, the first pair of struts 1 on the one hand with the table leg 0 and on the other hand with the second pair of struts 2 and the The second pair of struts 2 is formed connected on the one hand to the first pair of struts 1 and on the other hand to the table top support 3, the first pair of struts 1 having a first support strut 1.1 articulated to the table leg 0 and a first adjusting strut 1.2 that runs at least in sections parallel to the first support strut 1.1 , the second pair of struts 2 having a second supporting strut 2.1, which is articulated to the table top support 3, and a second adjusting strut 2.2 running at least in sections parallel to the second supporting strut 2.1.

How out Figure 1 As can be seen, it is generally preferred, but not mandatory, that the table according to the invention has a table top 14, with a table top carrier 3 being arranged on opposite edges of the table top 14, on which the two pairs of struts 1, 2 and one each are then attached Connect table leg 0. Of course, a table with only one or more than two legs is also possible.

It is now essential for the table according to the invention, and this and all other further training measures apply, as long as a different note is not explicitly given, for all illustrated embodiments that the first support strut 1.1 is articulated to the second support strut 2.1 via a first joint 4.1, the first Support strut 1.1 is hinged to the second strut 2.2 via a second hinge 4.2 and the first strut 1.2 is hinged to the second strut 2.2 via a third hinge 4.3 and that the first strut 1.2 is displaceable on the table foot 0 and the second strut 2.2 is displaceable on the table top support 3 is stored.

The table according to the invention is distinguished in particular by the fact that it is designed to be continuously adjustable in height between a folded position and a fully extended position.

For height adjustment, it is particularly preferred that optionally (and so the "or" is to be understood accordingly in claim 2 and in the following claims) on the table leg 0 a cooperating with the first adjusting strut 1.2, first actuator 5.1 and / or on the table top support 3, a second actuator 5.2 cooperating with the second adjusting strut 2.2 is arranged.

It is furthermore preferably provided that the first and / or second actuating drive 5.1, 5.2 is optionally designed as an elongated body and as such is arranged close and flat, i.e. approximately parallel, resting on the table base 0 or on the table top support 3.

How particularly good Figure 1 can be seen, it is also particularly preferred to realize a large legroom that optionally the table base 0 and / or the table top support 3 is or are designed as an elongated hollow profile, with at least one of the actuators 5.1, 5.2 in the hollow profile of the table base 0 or the Hollow profile of the table top support 3 is arranged.

How particularly good Figure 2 As can be seen, it is furthermore preferably provided that either the first actuator 5.1 is articulated to the table base 0 and / or the second actuator 5.2 is articulated to the table top support 3.

How especially good in the Figures 6 and 8 recognizable, is also particularly preferred optionally on the table leg 0 a first straight guide 6.1 for a first guide 6.1 that fits the first guide 6.1 and is articulated to the first strut 1.2 and / or on the table top support 3 a second straight guide 6.2 for a second guide 6.2 matching, articulated with the second strut 2.2 connected, second guide element 7.2 is provided.

Considered even more precisely, it is particularly preferred to implement the height adjustment according to the invention that the first and / or second guide 6.1, 6.2 optionally be at an angle between 0 and 45 °, preferably at an angle between 10 ° and 35 °, to the horizontal is designed to run.

In particular with reference to Figure 3 it is also particularly preferred that a first lever 8.1 and / or a second lever 8.2 is articulated on the first support strut 1.1 and / or on the second support strut 2.1. It is also preferably provided that both the first adjusting strut 1.2 and the first guide element 7.1 and at a greater distance the first actuator 5.1 and / or on the lever 8.2 at a smaller distance on the lever 8.1 at a smaller distance from its axis of rotation 8.3 on the support strut side to its axis of rotation 8.3 on the support strut side, both the second actuating strut 2.2 and the second guide element 7.2 and, at a greater distance, the second actuating drive 5.2 is or are articulated.

Coming back again to the actuators 5.1, 5.2, is also in particular with reference to Figure 3 particularly preferably provided that either the first and / or second actuator 5.1, 5.2 either as a gas pressure spring (see also https://de.wikipedia.org/w/index.php?title=Gasdruckfeder&oldid=181270065) or as an electric motor with a threaded spindle 5.3 driven by this (see also https://de.wikipedia.org/w/index.php?title=Gewindespindel&ol-did=179745985).

It is further particularly preferred that a preferably sleeve-shaped spindle nut 5.4, which interacts with the threaded spindle 5.3, is operatively connected to the first or second lever 8.1, 8.2. In addition (which, however, actually - and therefore different from what is shown - is only necessary if the actuator is not articulated to the foot part 0 or the table top support 3) preferably provided that the spindle nut 5.4 articulated with an intermediate member 10 and this articulated with the first and second lever 8.1, 8.2 is formed connected.

In the Figures 1 to 12 The solutions shown here specifically provide that the first actuator 5.1 is designed as a gas pressure spring and the second actuator 5.2 as an electric motor with a threaded spindle 5.3. However, this could also be implemented the other way round, with an electronic circuit (not shown separately) being provided in all cases for the coordinated actuation of the actuators 5.1, 5.2 on the table.

Regarding the actual leg construction (see in particular Figure 1 ) particularly preferably provided that optionally the first and / or second support strut 1.1, 2.1 is designed as a hollow profile and optionally the first and / or second adjusting strut 1.2, 2.2 is or are at least partially guided within the hollow profile.

In addition, it is structurally provided that optionally the first support strut 1.1 from a support strut section facing away from the table base 1.1.1, from a middle section 1.1.2 and from a connection section 1.1.3 facing the table base and / or the second support strut 2.1 from a support strut section 2.1.1 facing away from the table top support, from a center section 2.1.2 and from a connection section 2.1.3 facing the table top support . are.

In this context, it is also preferably provided that an end of the first support strut 1.1 facing away from the table base is optionally the support strut section 1.1.1 angled to the rest of the first support strut 1.1, which extends largely in a straight line, and / or an end of the second support strut 2.1 facing away from the table top support as the rest of the largely straight strut second support strut 2.1 angled support strut section 2.1.1 is formed.

Furthermore, it is particularly preferred that the first support strut 1.1, preferably the connecting section 1.1.3, on the one hand via a table leg joint 9.1 with the table leg 0 and on the other hand via a lever joint 11.1 with the first lever 8.1 and / or the second support strut 2.1, preferably the Connecting section 2.1.3 is formed connected on the one hand via a table top support joint 9.2 to the table top support 3 and on the other hand via a lever joint 11.2 to the second lever 8.2.

How particularly good from the Figures 1 and 7th It is also particularly preferred that the first support strut 1.1 and / or the second support strut 2.1 is or are fork-shaped at least at one of their two ends.

With regard to the two adjusting struts 1.2, 2.2, it is also particularly preferably provided that at least one of the two has an angled section 1.2.1, 2.2.1 at at least one of its two ends. In addition, at least one adjusting strut 1.2, 2.2 is optionally formed in one piece and / or has a U-shaped cross section.

With regard to the joints 4.1, 4.2, 4.3 mentioned at the outset, it is particularly preferred that the first joint 4.1 is arranged between the second and third joint 4.2, 4.3 in every position of the table. Furthermore (see in particular Figure 3 ) preferably provided that either the first and second joint 4.1, 4.2 is arranged on an end of the first support strut 1.1 facing away from the table base and / or the first and third joint 4.1, 4.3 on an end of the second support strut 2.1 facing away from the tabletop support.

Considered even more precisely, the joints 4.1, 4.2, 4.3 are preferably arranged on the angled support strut sections 1.1.1, 2.1.1. Furthermore, the joints 4.2, 4.3 are preferably each positioned at the outermost ends of the support struts 1.1, 2.1.

Like in particular from Figure 7 As can be seen, it is also particularly preferred that at least one joint 4.1, 4.2, 4.3 is formed from several through openings 12 on the strut pairs 1, 2 and a bolt 13 that extends through the through openings 12 and is preferably axially displaceably secured.

Regarding the in the Figures 9 to 11 illustrated embodiment is in particular preferably provided that for Inclination adjustment of the table top support 3 optionally a table base joint 9.1 between the table base 0 and the first support strut 1.1 (not shown separately) and / or a table top support joint 9.2 between the table top support 3 and the second support strut 2.1 (shown) is or are designed as an adjustable eccentric joint.

Regarding the in Figure 12 The illustrated embodiment is alternatively preferably provided that, for the inclination adjustment of the table top support 3, the first support strut 1.1 and / or the second support strut 2.1 is or are configured to be adjustable in length. However, this is only very schematically shown in Figure 12 shown, namely simply by the fact that the above-mentioned middle sections 1.1.2, 2.1.2 have been omitted from the drawing and replaced by thick black lines, which are intended to symbolize said length adjustability. Alternatively, what is in Figure 12 but is not shown, it can be provided that, to adjust the inclination of the table top support 3, either the first adjusting strut 1.2 and / or the second adjusting strut 2.2 is or are adjustable in length, a combination of the length adjustability of the support struts and the adjusting struts being of course also conceivable . To implement the length adjustability, power-operated cylinders, in particular so-called hydraulic cylinders (see, for example, https://de.wikipedia.org/w/index.php?title= Hydraulic cylinder&oldid=178128363) or pneumatic cylinders (see, for example, https: //de.wikipedia.org/w/index.php?title= Hydraulic cylinder&oldid=178128363). In addition, the actuator (5.1, 5.2) for adjusting the height of the table can also be designed as such a power-operated cylinder.

The table according to the invention works as follows:
In Figure 4 the table is shown in its collapsed position. In order to unfold it, the second actuator 5.2 is applied with current, which leads to a rotary movement of the threaded spindle 5.3, which in turn (assuming the correct direction of rotation) leads to the spindle nut 5.4 in Figure 4 is moved to the right. This movement is then transmitted via the intermediate member 10 to the second lever 8.2, which in turn ensures a movement of the second support strut 2.1 and the second adjusting strut 2.2, the direction of the movement being determined via the second guide 6.2 and the second guide element 7.2.

Via the joints 4.1, 4.2, 4.3 the movement is then further transmitted to the first support strut 1.1 and the first adjusting strut 1.2, this movement at the table base 0 from the first actuator 5.1 via the first lever 8.1, the first guide 6.1 and the first guide element 7.1 is supported accordingly. Figure 3 then shows, as mentioned, a position in which the table is used as a normal desk, i.e. when the user is seated. In Figure 2 the position is then shown in which the user uses the table while standing.

If the inclination of the table top 14 is to be changed, the user can choose between the embodiments according to the invention, which are identical apart from the inclination adjustment mechanism Figure 9 and 12th to disposal.

List of reference symbols

0

Table base

1

first pair of struts

1.1

first support strut

1.1.1

Support strut section

1.1.2

Middle section

1.1.3

Connection section

1.2

first strut

1.2.1

angled section

2

second pair of struts

2.1

second support strut

2.1.1

Support strut section

2.1.2

Middle section

2.1.3

Connection section

2.2

second strut

2.2.1

angled section

3

Table top support

4.1

first joint

4.2

second joint

4.3

third joint

5.1

first actuator

5.2

second actuator

5.3

Threaded spindle

5.4

Spindle nut

6.1

first tour

6.2

second tour

7.1

first guide element

7.2

second guide element

8.1

first lever

8.2

second lever

8.3

Axis of rotation

9.1

Table leg joint

9.2

Table top support joint

10

Intermediate link

11.1

Lever joint

11.2

Lever joint

12th

Through opening

13th

bolt

14th

Tabletop

Claims (10)

1. Height-adjustable table, comprising a table base (0), a first and a second pair of struts (1, 2) and a table top support (3), wherein the first pair of struts (1) is designed to be connected firstly with the table base (0) and secondly with the second pair of struts (2), and the second pair of struts (2) is designed to be connected firstly with the first pair of struts (1) and secondly with the table top support (3), wherein the first pair of struts (1) has a first support strut (1.1) connected in an articulated manner to the table base (0) and a first adjusting strut (1.2) extending at least in sections parallel to the first support strut (1.1), wherein the second pair of struts (2) has a second support strut (2.1) connected in an articulated manner to the table top support (3) and a second adjusting strut (2.2) extending at least in sections parallel to the second support strut (2.1), characterized in that
   the first support strut (1.1) is designed to be connected in an articulated manner to the second support strut (2.1) via a first joint (4.1), the first support strut (1.1) is designed to be connected in an articulated manner to the second adjusting strut (2.2) via a second joint (4.2) and the first adjusting strut (1.2) is designed to be connected in an articulated manner to the second support strut (2.2) via a third joint (4.3), and in that the first adjusting strut (1.2) is moveably mounted on the table base (0) and the second adjusting strut (2.2) is moveably mounted on the table top support (3).
2. Height-adjustable table according to claim 1, characterized in that
   a first or second actuator (5.1, 5.2) interacting with the first or second adjusting strut (1.2, 2.2) is arranged on the table base (0) or on the table top support (3).
3. Height-adjustable table according to claim 2, characterized in that
   the first or second actuator (5.1, 5.2) is designed as an elongated body and as such is arranged to lie closely and flatly against the table base (0) or the table top support (3).
4. Height-adjustable table according to claim 2 or 3, characterized in that
   optionally the table base (0) and/or the table top support (3) is/are designed as an elongated hollow profile, wherein at least one of the actuators (5.1, 5.2) is arranged in the hollow profile of the table base (0) or hollow profile of the table top support (3).
5. Height-adjustable table according to one of claims 2 to 4,
   characterized in that
   optionally the first and/or second actuator (5.1, 5.2) is designed either as a gas pressure spring or as an electric motor having a threaded spindle (5.3) driven by it.
6. Height-adjustable table according to one of claims 1 to 5,
   characterized in that
   a first or second guide (6.1, 6.2), which extends in a straight line, for a first or second guide element (7.1, 7.2) which goes with the first or second guide (6.1, 6.2) and is connected in an articulated manner to the first or second adjusting strut (1.2, 2.2) is provided on the table base (0) or table top support (3).
7. Height-adjustable table according to claims 2 and 6, characterized in that
   a first or second lever (8.1, 8.2) is pivotably mounted on the first or second support strut (1.1, 2.1), on which lever in turn both the first or second adjusting strut (1.2, 2.2) and the first or second guide element (7.1, 7.2) are pivotably mounted at a smaller distance to its axis of rotation (8.3) on the support strut side, and on which lever the first or second actuator (5.1, 5.2) is pivotably mounted at a greater distance.
8. Height-adjustable table according to one of claims 1 to 7,
   characterized in that
   optionally the first and/or second support strut (1.1, 2.1) is/are designed as a hollow profile and optionally the first and/or second adjusting strut (1.2, 2.2) is/are designed to be guided at least partially within the hollow profile.
9. Height-adjustable table according to one of claims 1 to 8,
   characterized in that
   the first joint (4.1) is arranged between the second and third joint (4.2, 4.3) no matter what the position of the table.
10. Height-adjustable table according to one of claims 1 to 9,
    characterized in that
    in order to adjust the inclination of the table top support (3), optionally a table base joint (9.1) between the table base (0) and the first support strut (1.1) and/or a table top support joint (9.2) between the table top support (3) and the second support strut (2.1) is/are designed as an adjustable eccentric joint.

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