Seating furniture with a kinematic module for a two-part footrest

Abstract

The invention relates to an item of seating furniture (1) comprising a chassis (5), a seat part (3) and an at least two-part footrest (6) which is attached to the seat part (3) and / or to the chassis (5) via at least one kinematics module (2), wherein: the footrest (6) comprises a first (6a) and a second foot part fitting (6b); the first (6a) and the second foot part fitting (6b) are coupled together such that the second foot part fitting (6b) can be pivoted out of the sitting position of the seating furniture (1), in which the first (6a) and the second foot part fitting (6b) are pivoted in underneath the seat part (3), into a lying position of the seating furniture (1), in which the second foot part fitting (6b) forms, together with the first foot part fitting (6a), an extension of the seat part (3) attached to the seat part (3); the second foot part fitting (6b) is pivoted into an approximately horizontal position that extends the end, remote from the seat part (3), of the pivoted-out first foot part fitting (6a); during pivoting of the seating furniture (1), the first foot part fitting (6a) is pivoted by at least 140° from the sitting position into the lying position; the kinematics module (2) comprises a first (7) and a second (8) articulated lever; the first articulated lever (7) is positioned closer to the rear edge of the seating furniture (1) than the second articulated lever (8); the first articulated lever (7) is articulated by its end remote from the seat part (3) and / or the chassis (5) on a first end of a third articulated lever (9); the third articulated lever (9) is articulated by its second end on the first foot part fitting (6a); the second articulated lever (8) is articulated by its end remote from the seat part (3) and / or the chassis (5) on a central region of the third articulated lever (9); a fourth articulated lever (10) is articulated on one side on a central region of the second articulated lever (8) and on the other side is articulated on the first foot part fitting (6a); and a control lever (11) is articulated on a central region of the fourth articulated lever (10) and is coupled by its free end to the second foot part fitting (6b).

Description

[0001] The invention relates to a piece of seating furniture with a chassis, a seat part and a pivotable footrest connected to the seat part via a kinematics module, wherein the footrest comprises at least a first and a second foot part fitting which are coupled to one another in such a way that the second foot part fitting can be pivoted from the sitting position of the seating furniture, in which the first and the second foot part fitting are pivoted in below the seat part, into a lying position of the seating furniture, in which the second foot part fitting with the first foot part fitting forms an extension of the seat part adjoining the seat part, wherein the second foot part fitting is pivoted into an approximately horizontal position which extends the end of the pivoted out first foot part fitting facing away from the seat part.

[0002] From the publication DE 200 05 106 U1 a piece of seating furniture is known in which a two-part footrest is pivoted in below the seat part and both parts of the footrest run approximately parallel to the seat part.

[0003] The disadvantage, however, is that when the footrest is swung out, there is a large gap between the seat and the footrest, which reduces the user's comfort due to the inconsistent leg support.

[0004] Another disadvantage is that the parts of the footrest are each relatively short.

[0005] Based on the described prior art, the invention is based on the object of developing a piece of seating furniture of the generic type in such a way that the footrest in the swung-out position has both an almost continuous leg support due to only a small gap between the seat part and the footrest and a significantly longer support surface compared to the known seating furniture.

[0006] The above object is achieved according to the invention by a piece of seating furniture having the features listed in patent claim 1.

[0007] The kinematic module arranged between the seat part and the footrest, in the form of articulated levers that are operatively connected to one another, enables a "flat" movement curve of the front edge of the footrest, which runs upwards relative to a horizontal plane spanned by the front edge of the pivoted-in footrest during the entire pivoting of the footrest from the sitting to the lying position.

[0008] As a result of this and due to a movement sequence known per se, in which the two parts of the footrest in the swung-in and swung-out positions together span approximately one plane and are arranged approximately at right angles to each other in an intermediate position, it is possible to design the two parts of the footrest to be significantly longer than in the known seating furniture and thus to provide a longer support surface for the user's lower legs.

[0009] At the same time, the kinematic module of the seating furniture according to the invention is controlled in such a way that, in the swivelled-out position of the footrest, an almost continuous leg support is possible due to only a small gap between the seat part and the footrest.

[0010] An embodiment of the invention is described below with reference to the accompanying drawing, which shows Fig. 1 shows a piece of seating furniture according to the invention in the form of a two-seater sofa, one with the footrest swung out and the other with the footrest swung in; Fig. 2 shows the seating furniture according to the invention from a side perspective with the footrest partially swung in; Fig. 3 shows the seating furniture according to the invention in a detailed partial view with the footrest swung out; and Fig. 4 shows the seating furniture according to the invention in a detailed partial view with the footrest swung in.

[0011] The representations in the drawing essentially show only the mechanism of a piece of seating furniture 1 according to the invention without the parts not of interest here, such as upholstery in particular.

[0012] Some of the components mentioned below are present twice due to a largely mirror-image structure of the mechanism of the seating furniture 1, whereby these components are referred to in the following in the singular, whereby both components are meant in each case.

[0013] The seating furniture 1 according to the invention consists of a chassis 5, a seat part 3 and a pivoting footrest connected to the seat part 3 via a kinematic module 2 in the form of articulated levers that are operatively connected to one another.

[0014] The footrest 6 is designed in two parts and comprises a first 6a and a second foot part fitting 6b, which are connected to each other in an articulated manner.

[0015] The first foot part fitting 6a and the second foot part fitting 6b are coupled to one another in such a way that the second foot part fitting 6b can be pivoted from the sitting position of the seating furniture 1, in which the first foot part fitting 6a and the second foot part fitting 6b are pivoted in below the seat part 3, into a lying position of the seating furniture 1, in which the second foot part fitting 6b with the first foot part fitting 6a forms an extension of the seat part 3 adjoining the seat part 3, wherein the second foot part fitting 6b is pivoted into an approximately horizontal position extending the end of the pivoted-out first foot part fitting 6a facing away from the seat part 3.

[0016] The kinematic module 2 of the seating furniture 1 according to the invention comprises a first 7 and a second 8, each hinged to the seat part 3, wherein the first articulated lever 7 is positioned closer to the rear edge of the seating furniture 1 than the second articulated lever 8.

[0017] The first articulated lever 7 is articulated with its end facing away from the seat part 3 to a first end of a third articulated lever 9.

[0018] The third articulated lever 9 is articulated with its second end to the first foot part fitting 6a.

[0019] The second articulated lever 8 is articulated with its end facing away from the seat part 3 to a central region of the third articulated lever 9.

[0020] In this context, "a middle area of the articulated lever" does not mean the exact geometric center, but rather the entire area of an articulated lever lying between the two end joint points.

[0021] A fourth articulated lever 10 is articulated on the one hand to a central region of the second articulated lever 8 and on the other hand to the first foot part fitting 6a.

[0022] Due to the described arrangement of the four articulated levers 7, 8, 9, 10 of the kinematic module 2, it is ensured that the front edge 4 of the footrest 6 follows a "flat" movement curve, which runs upwards relative to a horizontal plane spanned by the front edge 4 of the pivoted-in footrest 6 during the entire pivoting phase of the footrest 6 from the sitting to the lying position.

[0023] A control lever 11 is articulated to a central region of the fourth articulated lever 10 and is articulated with its free end to a first end of a coupling lever 12, wherein the coupling lever 12 is articulated with its central region to the first foot part fitting 6a.

[0024] The coupling lever 12 is articulated with its second end to a first end of a connecting lever 13, which is articulated with its second end to the second foot part fitting 6b.

[0025] According to the invention, the articulation point of the control lever 11 on the fourth articulated lever 10 is arranged such that the distance between this articulation point and the articulation point of the coupling lever 12 on the first foot part fitting 6a is shortened during a first phase of the pivoting of the seating furniture 1 from the sitting to the lying position and is lengthened in a second phase of the pivoting of the seating furniture 1 from the sitting to the lying position.

[0026] This has the effect that the first 6a and the second foot part fitting 6b, in the pivoted-in and pivoted-out position of the footrest 6, together span approximately one plane and are arranged approximately at right angles to one another in an intermediate position.

[0027] This movement sequence of the first 6a and the second foot part fitting 6b in conjunction with the aforementioned "flat" movement curve of the front edge 4 of the footrest 6 makes it possible to provide significantly longer support surfaces for the user's lower legs than in the known seating furniture.

[0028] At the same time, the four articulated levers 7, 8, 9, 10 of the kinematic module 2 are controlled in such a way that, when the footrest 6 is in the swung-out position, only a small gap is formed between the seat part 3 and the footrest 6, thus enabling an almost continuous leg support.

Claims

1. A seating furniture (1) having a chassis (5), a seat part (3) and an at least two-part footrest (6) which is connected to the seat part (3) and / or to the chassis (5) via at least one kinematic module (2), in particular in the form of articulated levers which are operatively connected to one another, wherein - the footrest (6) comprises a first foot part fitting (6a) and a second foot part fitting (6b), - wherein the first foot part fitting (6a) and the second foot part fitting (6b) are coupled to one another in such a way that the second foot part fitting (6b) can be pivoted out of the sitting position of the seating furniture (1), in which the first foot part fitting (6a) and the second foot part fitting (6b) are pivoted in below the seat part (3), into a reclining position of the seating furniture (1), in which the second foot part fitting (6b) forms, with the first foot part fitting (6a), an extension of the seat part (3) which adjoins the seat part (3), wherein the second foot part fitting (6b) is pivoted into an approximately horizontal position which extends the end of the pivoted-out first foot part fitting (6a) which faces away from the seat part (3), wherein - the first foot part fitting (6a) is pivoted through at least 140° during the pivoting of the seating furniture (1) from the sitting position into the reclining position, characterized in that - the kinematic module (2) has a first articulated lever (7) and a second (8) articulated lever, - wherein the first articulated lever (7) is positioned closer to the rear edge of the seating furniture (1) than the second articulated lever (8), - wherein the first articulated lever (7) is articulated with its end facing away from the seat part (3) and / or the chassis (5) to a first end of a third articulated lever (9), - wherein the third articulated lever (9) is articulated with its second end to the first foot part fitting (6a), - wherein the second articulated lever (8) is articulated with its end facing away from the seat part (3) and / or the chassis (5) to a central region of the third articulated lever (9), - wherein a fourth articulated lever (10) is articulated on the one hand to a central region of the second articulated lever (8) and on the other hand to the first foot part fitting (6a), - wherein a control lever (11) is articulated to a central region of the fourth articulated lever (10) and is coupled with its free end to the second foot part fitting (6b).

2. The seating furniture (1) according to claim 1, characterized in that the control lever (11) is articulated with its free end to a first end of a coupling lever (12), the coupling lever (12) being articulated with its central region to the first foot part fitting (6a).

3. The seating furniture (1) according to claim 2, characterized in that the first foot part fitting (6a) and the second foot part fitting (6b) are connected to one another in an articulated manner, wherein the coupling lever (12) is articulated with its second end to a first end of a connecting lever (13) which with its second end is attached in an articulated manner to the second foot part fitting (6b).

4. The seating furniture (1) according to at least one of the preceding claims, characterized in that the front edge (4) of the footrest (6) follows a "flat" movement curve which runs in an ascending manner with respect to a horizontal plane spanned by the front edge (4) of the pivoted-in footrest (6) during the entire pivoting phase of the footrest (6) from the sitting position into the reclining position.

5. The seating furniture (1) according to any of claims 2 to 4, characterized in that the distance of the articulation point of the control lever (11) on the fourth articulated lever (10) from the articulation point of the coupling lever (12) on the first foot part fitting (6a) is shortened during a first phase of the pivoting of the seating furniture (1) from the sitting position into the reclining position and is lengthened in a second phase of the pivoting of the seating furniture (1) from the sitting position into the reclining position.

6. The seating furniture (1) according to at least one of the preceding claims, characterized in that the first foot part fitting (6a) and the second foot part fitting (6b) in the pivoted-in and in the pivoted-out position of the footrest (6) jointly span approximately a plane and in an intermediate position are arranged approximately at right angles to one another.

7. The seating furniture (1) according to at least one of the preceding claims, characterized in that the first articulated lever (7) and the second articulated lever (8) are each articulated to the seat part (3).

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