EP3639694A1 - Height-adjustable table - Google Patents

Abstract

The invention relates to a height-adjustable table, comprising a table base (0), a first and a second pair of struts (1, 2) and a table top support (3), the first pair of struts (1) on the one hand with the table base (0) and on the other hand with the The second pair of struts (2) and the second pair of struts (2) are on the one hand connected to the first pair of struts (1) and on the other hand connected to the table top support (3), the first pair of struts (1) being a first articulated to the table base (0) Carrying strut (1.1) and a first adjusting strut (1.2) running at least in sections parallel to the first supporting strut (1.1), the second pair of struts (2) having a second supporting strut (2.1) articulatedly connected to the table top support (3) and one at least in sections has a second adjusting strut (2.2) running parallel to the second support strut (2.1). According to the invention, the first support strut (1.1) is articulated via a first joint (4.1) with the second support strut (2.1), the first support strut (1.1) via a second joint (4.2) articulated with the second adjusting strut (2.2) and the first adjusting strut (1.2) is articulatedly connected to the second supporting strut (2.2) via a third joint (4.3) and that the first adjusting strut (1.2) is displaceably on the table base (0) and the second adjusting strut (2.2) is displaceably on the table top support ( 3) is stored.

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 known. 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 formed on the one hand with the table base and on the other hand with the second pair of struts and the second pair of struts on the one hand connected to the first strut pair and on the other hand with 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 in sections 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 strut running at least in sections parallel to the second support strut Has strut. This table has a connecting device for connecting the two strut pairs, a connecting strut provided in the single figure with the reference numerals 9 and 9a being provided for synchronizing the movement sequences of the two strut pairs. To determine the desired height, several gas pressure springs cooperating with the strut pairs are provided.

The invention has for its object to improve a height-adjustable table of the type mentioned. In particular, it should be maintained 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 by the features listed in the characterizing part of patent claim 1.

According to the invention it is therefore 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 adjusting strut via a second joint and the first adjusting strut is articulated to the second supporting strut via a third joint and that the first strut is slidably mounted on the table base and the second strut is slidably mounted on the table top support.

In other words, the solution according to the invention is characterized in that the two pairs of struts are directly connected to one another and the two adjusting struts are each slidably mounted on the table base or table top side. In addition to the fact that the aforementioned connecting device and also the aforementioned connecting strut can be dispensed with, this provision also provides, as will be explained in more detail below, a very simple possibility of attaching a drive for the height adjustment to the table. In this regard, and in this respect, in anticipation of the more detailed description that is to be announced below, particularly preferably on the table top support, an actuator cooperating with the second adjusting strut is provided.

Other advantageous developments of the height-adjustable table according to the invention result 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 further developments according to the dependent claims, is explained in more detail below with reference to the drawing 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 of the table Figure 1 in fully extended position;

Figure 3

as a sectional view from the side of the table Figure 1 in half high position;

Figure 4

as a sectional view from the side of the table Figure 1 in the folded position;

Figure 5

as a side view of the table 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 an enlarged detail from the side of the table Figure 9 with horizontal table top support in a first position of the eccentric;

Figure 11

as an enlarged detail from the side of the table Figure 9 with the table top support inclined 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 only schematically illustrated length adjustment of the two support struts.

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

How from Figure 1 can be seen, it is fundamentally preferably, but not necessarily, provided that the table according to the invention has a table top 14, a table top support 3 being arranged on opposite edges of the table top 14, on which the two strut pairs 1, 2 and one each are then attached Connect table base 0. Of course, a table with only one or more than two legs is also possible.

It is essential for the table according to the invention, and this and also all further training measures apply, as long as a different reference is not explicitly given, that the first support strut 1.1 is articulated with the second support strut 2.1, the first, via a first joint 4.1 Support strut 1.1 is articulated to the second adjusting strut 2.2 via a second joint 4.2 and the first adjusting strut 1.2 is articulated to the second supporting strut 2.2 via a third joint 4.3 and that the first adjusting strut 1.2 is displaceable on the table base 0 and the second adjusting strut 2.2 is displaceable on the table top support 3 is stored.

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

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

It is further preferably provided that either the first and / or second actuator 5.1, 5.2 is designed as an elongated body and as such is arranged closely and flatly, that is to say approximately in parallel, against the table base 0 or the table top support 3.

How particularly good looking 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, at least one of the actuators 5.1, 5.2 in the hollow profile of the table base 0 or Hollow profile of the table top support 3 is arranged.

How particularly good looking Figure 2 can be seen, it is also 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 particularly good in the Figures 6 and 8 recognizable, is furthermore particularly preferably optionally a first rectilinearly extending guide 6.1 at the table base 0 for a first guide element 7.1 which is articulated to the first guide strut 1.2 and which is suitable for the first guide 6.1 and / or at the table top support 3 a second rectilinearly extending guide 6.2 for a second guide 6.2 suitable, articulated with the second adjusting strut 2.2 connected, second guide element 7.2 is provided.

Considered in more detail, in order to implement the height adjustment according to the invention, it is particularly preferably provided that the first and / or second guide 6.1, 6.2 optionally with an angle between 0 and 45 °, preferably with an angle between 10 ° and 35 °, to the horizontal is progressive.

Especially with reference to Figure 3 In addition, it is particularly preferably provided that a first lever 8.1 is optionally mounted on the first support strut 1.1 and / or a second lever 8.2 is articulated on the second support strut 2.1. It is further preferably provided that either the first adjusting strut 1.2 and the first guide element 7.1 on the lever 8.1 at a smaller distance from its axis of rotation 8.3, and at a greater distance the first actuator 5.1 and / or on the lever 8.2 at a smaller distance both its second adjusting strut 2.2 and the second guide element 7.2 and, at a greater distance, the second actuator 5.2 are or are mounted in an articulated manner to its axis of rotation 8.3.

Coming back again to the actuators 5.1, 5.2 is furthermore in particular with reference to Figure 3 It is 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 it (see also https://de.wikipedia.org/w/index.php?title=Gewindespindel&ol-did=179745985) is trained.

It is also particularly preferably provided that a preferably sleeve-shaped spindle nut 5.4 cooperating with the threaded spindle 5.3 is operatively connected to the first or second lever 8.1, 8.2. In addition (what is actually - and therefore differently than shown - is only necessary if the actuator is not articulated to the foot part 0 or the table top support 3) it is preferably provided that the spindle nut 5.4 is articulated with an intermediate member 10 and articulated with it is connected to the first and second levers 8.1, 8.2.

In the in the Figures 1 to 12 The solutions shown here are specifically provided for the first actuator 5.1 to be designed as a gas pressure spring and the second actuator 5.2 to be designed as an electric motor with a threaded spindle 5.3. However, this could also be realized in reverse, in which case an electronic circuit (not shown separately) is provided for the coordinated actuation of the actuators 5.1, 5.2 on the table.

Regarding the actual leg construction is also (see in particular Figure 1 ) It is particularly preferably provided that the first and / or second support strut 1.1, 2.1 is designed as a hollow profile and that 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 consists of a support strut section facing away from the table foot 1.1.1, from a middle section 1.1.2 and from a table section facing connection section 1.1.3 and / or the second support strut 2.1 from a table top support facing away strut section 2.1.1, from a middle section 2.1.2 and from a table top support connection section 2.1.3 is formed or . are.

In this context, it is further preferably provided that either an end of the first support strut 1.1 facing away from the table foot as the support strut section 1.1.1 angled in relation to the rest of the largely straight strut 1.1 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 second support strut 2.1 angled support strut section 2.1.1 is formed.

Furthermore, it is particularly preferably provided that either the first support strut 1.1, preferably the connecting section 1.1.3, on the one hand via a table foot joint 9.1 with the table foot 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 Connection section 2.1.3, 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 is connected to the second lever 8.2.

How particularly well from the Figures 1 and 7 can be seen, it is also particularly preferred that either the first support strut 1.1 and / or the second support strut 2.1 is or are fork-shaped at at least one of its two ends.

With regard to the two 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 on at least one of its two ends. In addition, preferably 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 preferably provided that the first joint 4.1 is arranged in any position of the table between the second and the third joint 4.2, 4.3. Furthermore (see here in particular Figure 3 ) preferably provided that the first and second joint 4.1, 4.2 is optionally arranged on an end of the first support strut 1.1 facing away from the table foot and / or the first and third joint 4.1, 4.3 is arranged on an end of the second support strut 2.1 facing away from the table top support.

Considered in more detail, 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.

How especially out Figure 7 can be seen, it is also particularly preferably provided that at least one joint 4.1, 4.2, 4.3 is formed from a plurality of through openings 12 on the strut pairs 1, 2 and a bolt 13 which passes through the through openings 12 and is preferably secured axially displaceably.

Regarding the in the Figures 9 to 11 illustrated embodiment is particularly preferably provided that for Tilt adjustment of the table top support 3 either a table foot joint 9.1 between the table foot 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 embodiment shown is alternatively preferably provided that the first support strut 1.1 and / or the second support strut 2.1 is or are designed to be adjustable in length in order to adjust the inclination of the table top support 3. However, this is only very schematic in Figure 12 represented, namely simply by the fact that the above-mentioned middle sections 1.1.2, 2.1.2 have been omitted in the drawing and replaced by thick black lines which are intended to symbolize the said adjustability in length. Alternatively, what else in Figure 12 but is not shown, it can be provided accordingly that the first adjusting strut 1.2 and / or the second adjusting strut 2.2 is or are adjustable in length to adjust the inclination of the table top support 3, although ultimately a combination of the length adjustability of the supporting struts and the adjusting struts is of course also conceivable . Finally, in order to realize the length adjustability, in particular 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 folded position. In order to fold it apart, the second actuator 5.2 is energized, which leads to a rotary movement of the threaded spindle 5.3, which in turn (provided the correct direction of rotation) leads to the spindle nut 5.4 in Figure 4 is moved to the right. Via the intermediate member 10, this movement is then transmitted to the second lever 8.2, which then in turn provides for a movement of the second support strut 2.1 and the second adjusting strut 2.2, the direction of the movement being fixed via the second guide 6.2 and the second guide element 7.2.

The movement is then transmitted to the first support strut 1.1 and the first adjusting strut 1.2 via the joints 4.1, 4.2, 4.3, 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 an ordinary desk, ie when the user is seated. In Figure 2 then the position is 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 that are identical except for the inclination adjustment mechanism Figure 9 and 12th to disposal.

Reference list

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

Connecting section

1.2

first strut

1.2.1

angled section

2nd

second pair of struts

2.1

second support strut

2.1.1

Support strut section

2.1.2

Middle section

2.1.3

Connecting section

2.2

second strut

2.2.1

angled section

3rd

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 ankle

9.2

Tabletop support hinge

10th

Pontic

11.1

Lever joint

11.2

Lever joint

12th

Through opening

13

bolt

14

Table top

Claims (10)

Height-adjustable table, comprising a table base (0), a first and a second pair of struts (1, 2) and a table top support (3), the first pair of struts (1) on the one hand with the table base (0) and on the other hand with the second pair of struts (2 ) and the second pair of struts (2) is 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) being connected to the table base (0) by a first supporting strut (1.1) and a first adjusting strut (1.2) running at least in sections parallel to the first support strut (1.1), the second pair of struts (2) having a second support strut (2.1) articulated to the table top support (3) and one at least sectionally parallel to the second support strut (2.1) extending, second adjusting strut (2.2),
characterized,
that the first support strut (1.1) is articulated with the second support strut (2.1) via a first joint (4.1), the first support strut (1.1) is articulated with the second adjusting strut (2.2) via a second joint (4.2) and the first adjusting strut (1.2 ) is articulatedly connected to the second support strut (2.2) via a third joint (4.3), and
that the first strut (1.2) is slidably mounted on the table base (0) and the second strut (2.2) is slidably mounted on the table top support (3). Height-adjustable table according to claim 1,
characterized,
that a first or second actuator (5.1, 5.2) cooperating 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). Height-adjustable table according to claim 2,
characterized,
that the first or second actuator (5.1, 5.2) is designed as an elongated body and as such is arranged closely and flatly against the table base (0) or against the table top support (3). Height-adjustable table according to claim 2 or 3,
characterized,
that either the table base (0) and / or the table top support (3) is or are designed as an elongated hollow profile, 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. Height-adjustable table according to one of claims 2 to 4, characterized in
that either the first and / or second actuator (5.1, 5.2) is designed either as a gas pressure spring or as an electric motor with a threaded spindle (5.3) driven by it. Height-adjustable table according to one of claims 1 to 5, characterized in
that on the table base (0) or on the table top support (3) a first or second rectilinear guide (6.1, 6.2) for an articulated to the first or second guide (6.1, 6.2) with the first or second adjusting strut ( 1.2, 2.2) connected, first or second guide element (7.1, 7.2) is provided. Height-adjustable table according to claims 2 and 6, characterized in
that a first or second lever (8.1, 8.2) is articulated on the first or second support strut (1.1, 2.1), on which in turn the first or second adjusting strut (8.3) is located at a smaller distance from its axis of rotation (8.3) on the support strut. 1.2, 2.2) and the first or second guide element (7.1, 7.2) and the first or second actuator (5.1, 5.2) at a greater distance from each other. Height-adjustable table according to one of claims 1 to 7, characterized in
that either 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 at least partially guided within the hollow profile. Height-adjustable table according to one of claims 1 to 8, characterized in that
that the first joint (4.1) is arranged in each position of the table between the second and the third joint (4.2, 4.3). Height-adjustable table according to one of claims 1 to 9, characterized in
that to adjust the inclination of the table top support (3) either a table foot joint (9.1) between the table foot (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) as adjustable Eccentric joint is or are formed.

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