DE202012003174U1 - Bedroom / seating - Google Patents

Abstract

Sleeping / seating furniture (10), such. B. sofa bed or sleeping chair, which is optionally convertible into a sitting position for sitting and in a sleeping position for lying, with - a body (12) having a backrest portion (16) and two armrests (14), - a first cushion part (24 ), which forms a seat surface (20) in the sitting position and a lower body and leg rest area (50) in the sleeping position, and - a second cushion part (26) pivotally connected to the first cushion part (24), which in the sitting position (20) is arranged under the first cushion part (24) and in the sleeping position forms an upper body lying surface (52), - wherein the second cushion part (26) about a pivot axis (38) is movably mounted on the armrests (14) and with the first cushion part (24) is movably connected about a hinge axis (28) substantially parallel to the extent of the backrest portion (16) in the area between the armrests (14), characterized in that between the Sc pivot axis (38) and the first cushion part (24) a biased in the seating position first expansion element (30) is arranged to support a Aufklappbewegung in the transfer from the sitting position to the sleeping position, - that on the body (12) at least a second expansion element ( 42) is arranged, which acts eccentrically to the hinge axis (28) on the second cushion member (26) or a protruding from this component and is biased in the sleeping position to support a collapsing movement in the transfer of the sleeping position to the sitting position, and - that the Pivot axis (38) on at least one of the armrests (14) and the second cushion member (26) engaging pivoting support members (48), wherein at least a first pivotal support support member (48) in the seating position to assist the Aufklappbewegung at the beginning of the transfer from the sitting position in the Sleep position is effective u and at least one second pivotal motion assist member (48) in the sleep position is operative to assist in the collapsing movement at the beginning of the transition from the sleep position to the seating position.

Description

The invention relates to a sleeping / sitting furniture such as a sofa bed or a sofa chair, wherein the furniture is selectively transferred to a sitting position for sitting and a sleeping position for lying.

Such sleep / seating furniture are known in a variety of configurations. As a rule, they have a body which comprises a backrest and two armrests. The armrests do not necessarily have to protrude above the seating surface, which is however predominantly the case.

The known sleeping / sitting furniture moreover have a first upholstered part which forms a seat surface in the sitting position and a lower body lying surface in the sleeping position. Articulately connected to the first cushion part is a second cushion part, which is arranged in the sitting position under the first cushion part and which forms an upper-body lying surface in the sleeping position. The second cushion part is movably mounted on the armrests about a (horizontal) pivot axis and movably connected to the first cushion part about a (likewise horizontal) hinge axis which is substantially parallel to the extent of the backrest in the area between the armrests. The problem with such sleep and seating furniture is the force that must be applied to transfer the furniture from the sitting position to the sleeping position and vice versa.

The object of the invention is therefore to provide a sleeping / sitting furniture that can be more conveniently transferred from one position to the other position.

• – einem Korpus, der ein Rückenlehnenteil und zwei Armlehnen aufweist,
• – einem ersten Polsterteil, das in der Sitzposition eine Sitzfläche und in der Schlafposition eine Unterkörper- und Beinliegefläche bildet, und
• – einem gelenkig mit dem ersten Polsterteil verbundenen zweiten Polsterteil, das in der Sitzposition unter dem ersten Polsterteil angeordnet ist und in der Schlafposition eine Oberkörper-Liegefläche bildet,
• – wobei das zweite Polsterteil um eine Schwenkachse beweglich an den Armlehnen gelagert ist und mit dem ersten Polsterteil um eine Gelenkachse beweglich verbunden ist, die zur Erstreckung des Rückenlehnenteils in deren Bereich zwischen den Armlehnen im Wesentlichen parallel verläuft.

To solve this problem, a sleeping / sitting furniture such. As a sofa bed or a sofa chair proposed, the sleeping / sitting furniture either in a sitting position for sitting and in a sleeping position can be moved around beach chairs and wherein the furniture is also provided with

• A body having a backrest part and two armrests,
• A first cushion part forming a seat surface in the sitting position and a lower body and leg rest surface in the sleeping position, and
• A second upholstered part hingedly connected to the first upholstered part, which is arranged in the sitting position under the first upholstered part and in the sleeping position forms an upper-body lying surface,
• - Wherein the second cushion member is movably mounted about a pivot axis to the armrests and is movably connected to the first cushion member about a hinge axis which extends to extend the backrest portion in the region between the armrests substantially parallel.

• – dass zwischen der Schwenkachse und dem ersten Polsterteil ein in der Sitzposition vorgespanntes erstes Expansionselement zur Unterstützung einer Aufklappbewegung bei der Überführung aus der Sitzposition in die Schlafposition angeordnet ist,
• – dass an dem Korpus mindestens ein zweites Expansionselement angeordnet ist, das exzentrisch zur Gelenkachse an dem zweiten Polsterteil oder einem von diesem abstehenden Bauteil angreift und in der Schlafposition zur Unterstützung einer Zusammenklappbewegung bei der Überführung von der Schlafposition in die Sitzposition vorgespannt ist, und
• – dass die Schwenkachse an mindestens einer der Armlehnen und dem zweiten Polsterteil angreifende Verschwenkbewegungsunterstützungselemente aufweist, wobei in der Sitzposition mindestens ein erstes Verschwenkbewegungsunterstützungselement zur Unterstützung der Aufklappbewegung zu Beginn der Überführung aus der Sitzposition in die Schlafposition wirksam ist und in der Schlafposition mindestens ein zweites Verschwenkbewegungsunterstützungselement zur Unterstützung der Zusammenklappbewegung zu Beginn der Überführung aus der Schlafposition in die Sitzposition wirksam ist.

In the sleeping / seating furniture of the aforementioned type, the invention provides

• - That between the pivot axis and the first cushion part a biased in the seating position first expansion element to support a Aufklappbewegung in the transfer from the sitting position is arranged in the sleeping position,
• - That at least a second expansion element is arranged on the body, which acts eccentrically to the hinge axis on the second cushion part or a protruding from this component and is biased in the sleeping position to support a collapsing movement in the transfer of the sleeping position in the sitting position, and
• - That the pivot axis on at least one of the armrests and the second cushion member engaging Verschwenkbewegungsunterstützungselemente, wherein in the seating position, at least a first pivotal support support member to support the Aufklappbewegung at the beginning of the transfer from the sitting position to the sleeping position is effective and in the sleeping position at least a second pivotal support support member Supporting the folding movement is effective at the beginning of the transfer from the sleeping position to the sitting position.

According to the invention the Aufklappvorgang the sleeping / sitting furniture, that is, the transfer of this piece of furniture from the sitting position to the sleeping position supported by a first expansion element, which is biased in the sitting position. The movement of the sleeping / sitting furniture from the sleeping position to the sitting position is supported according to the invention by a second expansion element which, when the furniture is in the sleeping position, is pre-tensioned. In this case, the second expansion element engages at an eccentrically arranged to the hinge axis location on the second cushion member; Alternatively, it may engage a part protruding from the second cushion part.

As an alternative or in addition to the aforementioned expansion elements, the sleeping / seating furniture according to the invention has at least one pivoting support support element which acts between at least one of the armrests and the second upholstered part.

According to the invention, therefore, at least one of the two expansion elements and / or provided at least one of the pivoting support elements. The invention is thus basically not limited to the constructive realization of all these elements on the sleeping / sitting furniture. The unfolding movement of the sleeping / sitting furniture is therefore initially supported once by the first expansion element and / or by the at least one pivoting movement support element. The pivoting support member is thereby both in the initial phase of the unfolding movement and in the initial phase of the folding movement, when the sleeping / sitting furniture is transferred from the sleeping position to the sitting position. The pivoting support member is suitably formed as a torsion spring element which is integrated in the hinge axis between the first and the second expansion element. Other configurations and action mechanisms of the pivoting support member are conceivable.

The first expansion element is expediently a gas pressure spring which is compressible under prestress of a spring element or the like and which is controllably expandable by flowing a gas or fluid from a first chamber via a throttle valve into a second chamber. Such telescopic expansion elements are known in principle. The first expansion element is biased according to the invention and thus stores energy when the sleeping / sitting furniture is transferred to its sitting position.

In contrast, the second expansion element acts when the furniture is transferred from its sleeping position to the sitting position. For this purpose, the at least one second expansion element is biased when the furniture is transferred to the sleeping position.

The at least one pivoting support member acts in two different directions, depending on the position occupied by the furniture. In the sitting position, the at least one pivotal movement support element acts to provide movement support between the first and second upholstered parts when the furniture is transferred from the sitting position to the sleeping position. During the pivotal movement of the second cushioning member about the pivot axis mounted on the armrests, the pivoting support members occupy a neutral position, preferably when the second cushioning member is approximately midway between its two pivotal movement positions sitting in the sitting and in the sleeping position. Upon further movement of the second cushion member from the sitting position to the sleeping position, the pivoting support member is in turn biased to then, starting from the sleeping position to support a movement toward the sitting position.

Each one of the aforementioned expansion and pivoting motion support elements in and of itself serves to transfer from the sitting position to the sleeping position and vice versa, and in particular acts in the initial phase of these transfer movements. This makes the folding and folding mechanism, because easy to handle, as extremely user-friendly.

In an advantageous embodiment of the invention it is provided that in each armrest, a second expansion element is arranged, which projects from the second cushion part at the armrest facing sides in each case a component, and that acts on each component, a second expansion element. Due to the formation of two second expansion elements, the force acting on the second cushion part in the movement of the furniture from the sleeping position in the sitting position designed as symmetrical and thus evenly.

Expediently, the at least one second expansion element, starting from the seating position, engages at least over a partial area of the unfolding movement on the second cushion part. The biasing energy that stores the second expansion element is thus introduced into this only in a phase in which the furniture is no longer in its sitting position. Expediently, the storage takes place only after the transfer of the piece of furniture from the sitting position to the sleeping position, which takes place approximately in half. In this state, the pivoting forces to be applied manually to the furniture are then optimized, so that storage of energy in the second expansion elements or in the at least one second expansion element is kinematically not a problem.

As already mentioned above, it is expedient if the expansion elements are designed as telescopic links, which are compressible to produce a biasing force and expandable due to the biasing force.

As further mentioned above, the pivoting support members are formed as torsion springs.

Securing the sleeping / sitting furniture in the sitting position is advantageously achieved in that the first cushion part is secured in the sitting position on the body, in particular below the backrest by a detachable snap locking unit against unwanted movements from the sitting position out. It may be expedient if the snap locking by Lifting the first cushion part can be unlocked at its front edge facing away in the sitting position of the backrest.

In a further advantageous embodiment of the invention, it is provided that a third cushion part is arranged on the backrest, that the third cushion part is hinged about a hinge axis substantially parallel to the pivot axis and that the third cushion part in the sitting position, a backrest surface and in the Sleeping position forms a head fly surface. The third cushion part thus has a padded front and a padded back. The upholstered front serves as a backrest surface in the seating position of the furniture, while the padded back serves as a head rest area in the sleeping position of the furniture.

It should be mentioned at this point that the three features of claim 1 can also be implemented individually or in other combinations in a sleeping / sitting furniture, such a sleeping / seating furniture is covered by the subject of the application.

The invention will be explained in more detail using an exemplary embodiment and with reference to the drawing. In detail, they show:

1 a perspective view of the sleeping / sitting furniture in the sitting position,

2 to 8th different phases of the furniture during the transfer from the sitting position according to 2 in the lying position 7 and 8th , in each case in side view and without representation of the armrest.

1 shows in perspective a sleeping / seating furniture 10 according to an embodiment of the invention, The furniture 10 has a body 12 with in this embodiment, the outside bendable armrests 14 and a backrest 16 on. In front of the backrest 16 can backrest cushions 18 be arranged. The over a seat 20 protruding ends 22 the armrests 14 can be hinged to the outside and be folded upwards, which is, however, in principle irrelevant to the invention.

The seat 20 of the furniture 10 is from a first upholstered part 24 formed, such as in 4 shown with a second cushion part 26 over a joint axis 28 articulated is connected. Between the two upholstery parts 24 and 26 acts a telescopic expansion element 30 , which is designed for example as a gas spring. Below the first upholstered part 24 is also a leg or the like support frame 32 with fold-out legs 34 . 36 the first upholstered part 24 then, when the sleeping / sitting furniture 10 is in the sleeping position, the first cushion part 24 supported against the ground.

As in particular on the basis of 2 to 8th can be seen, is the second cushion part 26 around a pivot axis 38 on the armrests 14 pivoted. Eccentric to this pivot axis 38 stand from the sides of the second upholstery 26 bolt-like components 40 starting in semicircular slits 41 the armrests 14 move when the second cushion part 26 in the transfer of the chair from the seating position according to 1 in the sleeping position according to the 7 and 8th and vice versa.

During the movement of the second cushion part 26 around the pivot axis 38 takes the second cushion part 26 the vertically aligned position according to 5 one. In this position, the bolt-like component engages 40 on a second expansion element 42 on, around a horizontal axis 44 hinged to the armrest 14 is stored. Such a second expansion element 42 is on each armrest 14 intended. The second expansion element 42 , which is also telescopic, will now in the further movement of the second cushion part 26 as in the further transfer of the furniture 10 in the sleeping position, stretched. This is in the 6 and 7 shown. Thus, the two second expansion elements 42 in the sleeping position according to the 7 and 8th biased and serve to assist a return movement from the sleeping position to the sitting position at least over part of the movement. In the sleeping position itself, these expansion elements act 42 not necessarily yet (see 7 and 8th ), as they are radial in the direction of the pivot axes 38 Act. Only after a circumferential pivoting of the first and the second cushion part 24 . 26 support the expansion elements 42 the further collapsing movement until, coming from the sleeping position, the situation according to 5 has set.

The first expansion element 30 is biased in the sitting position. This supports this first expansion element 30 the initial movement of the first cushion part 24 opposite the second cushion part 26 if the furniture 10 is transferred from the sitting to the sleeping position (see 2 and 3 ). Like the first expansion element 30 are also the second expansion elements 42 designed as gas springs.

For further enlargement of the lying surface in the sleeping position of the furniture 10 leaves the backrest 16 from their backrest position to a sleeping position (see the 7 and 8th ). This is the backrest 16 on a lead 46 on, in the form of a bar or the like of the second cushion part 26 projects.

Another special feature includes the pivot axis 38 Verschwenkbewegungsunterstützungselemente 48 in the form of, for example, torsion springs that can be biased in different directions. In the vertical position of the second cushion member according to 5 the torsion springs are relaxed. Will now the furniture 10 starting from the position according to 5 continue to sleep according to the 7 and 8th transferred, so are the pivoting support elements 48 biased. This has the advantage that these pivoting support support elements, when the furniture starting from the sleeping position in accordance with 7 and 8th back in the direction of the seating position to support a corresponding pivoting position. Conversely, the pivoting support elements serve 48 but also in the seating position of the furniture 10 supporting a movement of the furniture 10 for transfer from the sitting position into the vertical position according to 5 , In that regard, so let the pivoting support elements 48 bias in two opposite directions.

As you can see from the figures, so the first cushion part is used 24 in the sitting position according to 1 as a seat 20 while in the sleeping position according to the 7 and 8th as lower body and leg rest area 50 serves. The second upholstery part 26 in the sitting position below the first upholstered part 24 is arranged, acts in the sleeping position of the furniture 10 as upper body lying surface 52 , The backrest part 16 has a backrest surface 52 , in front of which possibly the backrest cushions 18 are located. The backrest part 16 is foldable about a horizontal axis, so that its back in the sleeping position a torso or Kopwiegfläche 54 forms ( 7 and 8th ).

The pivoting support elements 48 as well as the expansion elements 30 and 42 So ensure a support of the movements of the furniture when unfolding and folding, causing the furniture 10 overall simple and easy to use.

LIST OF REFERENCE NUMBERS

10

Bedroom / seating

12

corpus

14

armrest

16

Backrest part

18

Back cushion

20

seat

22

end up

24

first upholstered part

26

second cushion part

28

joint axis

30

expansion element

32

support truss

34

legs

36

legs

38

swivel axis

40

component

41

slot

42

expansion element

44

axis

46

head Start

48

Verschwenkbewegungsunterstützungselemente

50

Lower body and leg rest area

52

Waist-lying area

54

Head lying surface

Claims (8)

Sleeping / seating furniture ( 10 ), such. B. sofa bed or sleeper chair, which is optionally convertible into a sitting position for sitting and in a sleeping position to lie, with - a carcass ( 12 ), which has a backrest part ( 16 ) and two armrests ( 14 ), - a first cushion part ( 24 ), which in the sitting position a seat ( 20 ) and in the sleeping position a lower body and leg rest area ( 50 ), and - one hinged to the first cushion part ( 24 ) second padded part ( 26 ), which in the sitting position ( 20 ) under the first padding part ( 24 ) is arranged and in the sleeping position a upper body lying surface ( 52 ), - wherein the second cushion part ( 26 ) about a pivot axis ( 38 ) movable on the armrests ( 14 ) and with the first cushion part ( 24 ) about a hinge axis ( 28 ) is connected to the extension of the backrest part ( 16 ) in the area between the armrests ( 14 ) runs substantially parallel, characterized in that - between the pivot axis ( 38 ) and the first cushion part ( 24 ) a biased in the seating position first expansion element ( 30 ) is arranged to support a Aufklappbewegung in the transfer from the sitting position to the sleeping position, - that on the body ( 12 ) at least one second expansion element ( 42 ), which is eccentric to the hinge axis ( 28 ) on the second cushion part ( 26 ) or a component protrude from this and is biased in the sleeping position to support a collapsing movement in the transfer of the sleeping position to the sitting position, and - that the pivot axis ( 38 ) on at least one of the armrests ( 14 ) and the second cushion part ( 26 ) engaging pivoting support members ( 48 ), wherein at least a first Pivoting support element ( 48 ) is effective in the seating position for assisting the unfolding movement at the beginning of the transfer from the sitting position to the sleeping position and at least one second pivoting assisting element ( 48 ) in the sleep position to assist the collapsing movement at the beginning of the transfer from the sleep position to the sitting position is effective. Sleeping / seating furniture ( 10 ) according to claim 1, characterized in that in each armrest ( 14 ) a second expansion element ( 42 ) arranged by the second cushion part ( 26 ) on the armrests ( 14 ) facing sides in each case a component protrudes, and that on each component a second expansion element ( 42 ) attacks. Sleeping / seating furniture ( 10 ) according to claim 1 or 2, characterized in that the at least one second expansion element ( 42 ) starting from the sitting position at least over a partial area of the unfolding movement on the second cushion part ( 26 ) attacks. Sleeping / seating furniture ( 10 ) according to one of claims 1 to 3, characterized in that the expansion elements ( 30 . 42 ) are designed as telescopic arms, which are compressible to produce a biasing force and expandable due to the biasing force. Sleeping / seating furniture ( 10 ) according to one of claims 1 to 4, characterized in that the pivoting motion support elements ( 48 ) are designed as torsion springs. Sleeping / seating furniture ( 10 ) according to one of claims 1 to 5, characterized in that the first cushion part ( 24 ) in the sitting position on the body ( 12 ), in particular below the backrest part ( 16 ) is secured by a releasable snap lock unit against unwanted movements from the sitting position out. Sleeping / seating furniture ( 10 ) according to claim 6, characterized in that the snap locking unit by lifting the first cushion part ( 24 ) at its in the sitting position the backrest part ( 16 ) facing away from the front edge is unlocked. Sleeping / seating furniture ( 10 ) according to one of claims 1 to 7, characterized in that the backrest part ( 16 ) is formed as a third cushion part, that the third cushion part about a pivot axis and to the hinge axis ( 38 . 28 ) substantially parallel folding axis is hinged and that the third cushion part in the sitting position, a backrest surface ( 52 ) and in the sleeping position, a head bending area ( 54 ).

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