EP1592324A1

EP1592324A1 - Adjustable piece of seating furniture

Info

Publication number: EP1592324A1
Application number: EP04702319A
Authority: EP
Inventors: Eckhart Dewert
Original assignee: Deon AG
Current assignee: Deon AG
Priority date: 2003-01-15
Filing date: 2004-01-15
Publication date: 2005-11-09
Anticipated expiration: 2024-01-15
Also published as: US7198325B2; CN1905824A; WO2004062435A1; EP1592324B1; CN100475094C; CN1738561A; US20060000022A1; CN1929762B; CN1929762A; ATE390064T1; ES2285411T3; DE10301326A1; DE502004003466D1

Abstract

Piece of seating furniture, such as an armchair, includes a basic body on which a seating area is provided. Armrests, such as left and right armrests, are disposed laterally of the seating area. The armrests may be adjusted from a seating position into a lying position in which surfaces of one or more of the armrests form a lying area or a portion of a lying area. In that manner, the piece of furniture may be used for lying down on when the armrests are in there respective lying positions. One or more of the armrests may be pivotably attached to the seating furniture so that the armrests may individually or collectively be adjusted to various positions, so as to provide a variety of seating and lying options for a user of the chair.

Description

ADJUSTABLE SEATBELT

The invention relates to a Sitzmobel, in particular a chair, the type mentioned in the preamble of claim 1.

Such chairs are well known and have a base body on which a seat is formed, and arranged laterally from the seat armrests.

Armchairs are known in which the base body has adjustable parts, for example such that a backrest can be adjusted from a seating position in which the backrest is substantially vertical to a rest position in which the backrest is arranged inclined backwards. In this context, chairs are known in which when adjusting the backrest from the sitting position to the rest position in the sitting position of the seat substantially vertically downwardly extending portion of the body is inclined so that he is resting on the chair person in the calf area supported. In addition, seating is known, for example in the form of desk chairs, where the armrests are designed to be height adjustable.

By DE 299 19 238 U 1, a chair of the type in question is known, which is a Grundkδrper on which a seat is formed, and laterally of the

Seat arranged arranged armrests. The armchair NEN are adjustable from a sitting position to a lying position in the surfaces of the armrests form part of a lying surface, such that a reclining furniture is formed in the lying position. The armrests are each pivotable about a first pivot axis relative to the base body.

Similar chairs are also known from DE 298 00 197 U 1 and DE 201 00 733 U 1.

The invention has for its object to provide a chair referred to in the preamble of claim 1, in which the kinematics of the adjustment of the armrests is designed low and which is simple and inexpensive to produce.

This object is achieved by the teaching given in claim 1.

The teaching of the invention provides that the pivotable armrest is associated with an electromotive pivot drive and that the armrest is mounted in the direction perpendicular to the first pivot axis displaceable on the base body. In this way, a particularly favorable kinematics is achieved with adjustment of the respective armrest between the sitting position and the reclining position. For example, with the kinematics according to the invention it is possible to create a lying surface with a length of about 2 m in a chair with a substantially cubic design in the lying position of the armrests. This allows even larger people a comfortable lying on the then created reclining furniture. Another advantage of the chair according to the invention is that due to the kinematics according to the invention in all Verstellagen a sufficient connection of the respective armrest and thus one formed in the lying position by a part of the armrests Lying surface is guaranteed to the seat, without causing between the respective armrest and the seat excessively large gaps that could affect the comfort and overall visual impression of the furniture.

Due to the electromotive adjustability of the seating furniture according to the invention in a quick and easy way from a chair in a reclining furniture convertible and offers the user a high com fort.

A development of the teaching of the invention provides that for pivoting the respective armrest thereof is associated with a second pivot axis pivotally mounted on the main body lever whose second pivot axis remote from the pivot end about a third pivot axis is pivotally connected to the armrest and that the lever with the pivot drive is in effect connection. This results in a simple and robust construction. In order to achieve the desired kinematics with a simple and therefore inexpensive construction, it is expedient that in the aforementioned embodiment, the armrest along an imaginary connecting line between the first pivot axis and the third pivot axis is slidably mounted on the base body.

In principle, the seat of the seat according to the invention can be fixedly arranged on the base body. An extremely advantageous development of the teaching of the invention, however, provides that the

Seat on at least one seat part is formed, which is mounted relative to the base body about a fourth pivot axis pivotally mounted on the base body. In this way, the seat part is inclined in its inclination. adjustable, so that the adjustment possibilities of the seat according to the invention are substantially expanded.

To make the adjustment of the seat part comfortable and effortless, it is expedient that at least one of the seat parts is associated with an electric motor pivot drive.

In principle, the adjustment of at least one seat part can take place by means of an electromotive adjustment drive provided for adjusting at least one of the armrests. An advantageous development of the embodiment with the pivotable seat part, however, provides that at least two seat parts are provided, and that at least one of the seat parts is associated with a separate pivot drive. In this embodiment, at least one of

Seat parts adjustable independently of an adjustment of the armrests. In this way, the adjustment of the chair are expanded.

In order to expand the adjustment options of the seat beyond, provides an advantageous development that each of the seat parts is associated with a separate pivot drive. In this embodiment, the seat parts are additionally adjustable independently. An extraordinarily advantageous development of the embodiment with the pivotable seat part provides that the fourth pivot axis extends substantially perpendicular to an imaginary line defining the distance between the armrests. In this embodiment, the fourth pivot axis thus extends substantially perpendicular to a backrest of the chair, so that the seat part and thus the seat can be inclined to at least one of the armrests. This results over conventional Armchairs, in which the seat can only be tilted away from the backrest or towards the backrest, have expanded adjustment possibilities, in particular with regard to the use of the seat according to the invention as a reclining furniture.

The pivot drive for at least one of the armrests may be formed in any suitable manner. In order to design the pivot drive particularly simple and inexpensive and robust, provides a development that the pivot drive has a linear drive, the output member is in operative connection with the lever.

A development of the aforementioned embodiment provides that the output member is a Spindelmut- ter, which is arranged against rotation and movable in the axial direction on a rotatably driven threaded spindle, wherein the spindle nut about a third pivot axis pivotally connected to the lever and the threaded spindle about a sixth pivot axis pivotally connected to the base body.

In kinematic reversal of the aforementioned embodiment, the output member may also be a threaded spindle which is mounted against rotation and movable in the axial direction and on which a rotatably driven spindle nut is arranged, wherein the threaded spindle pivotable about a fifth pivot axis with the lever and the spindle nut about a sixth pivot axis connected to the main body.

In order to make the kinematics of the adjustment of the armrests or at least one of the armrests and / or the seat part or at least one of the seat parts particularly simple, provides an advantageous development that the second pivot axis and / or .the third pivot axis and / or the fourth pivot axis and / or the fifth pivot axis and / or the sixth pivot axis are substantially parallel to the first pivot axis.

In order to further simplify the structure, it is expedient that at least two of the pivot axes are parallel to each other under the first pivot axis., The second pivot axis, the third pivot axis, the fourth pivot axis, the fifth pivot axis and the sixth pivot axis. Another advantageous development of the teaching according to the invention provides that at least one of the pivot axes is a substantially horizontal pivot axis.

In principle, it is possible that the lying surface is formed exclusively by the armrests lying in lying position. An advantageous development of the teaching according to the invention provides that the reclining armrests form the lying surface together with the seat. In this embodiment, the extent of the lying surface is in the

Increased longitudinal direction and thus increases the comfort of the user.

In principle, it is sufficient if the armrests occupy either the sitting position or the lying position. In order to expand the adjustment and to increase the comfort of the user, however, it is expedient that the armrests are substantially continuously adjustable between their sitting position and their lying position. In this embodiment, the user can adjust the armrests in any position between the sitting position and the lying position.

Basically, the lying surface in lying position seen in cross-section, an at least partially wise concave and / or convex surface be. A further development of the teaching according to the invention, however, provides that the lying surface in the lying position of the armrests is a substantially flat surface. In this embodiment, a substantially flat support surface is formed in the lying position, as is known for example from beds.

Shape, size and design of the armrests can be selected within wide limits. In order to achieve a simple and stable construction, provides an advantageous development of the teaching of the invention that the armrests are formed plate-like. Here, the armrests may for example have a frame-like base body, on which a padding is held. In order to increase the comfort of the user even further, a development of the teaching according to the invention provides that the armrests are padded at their lying in the lying position, the bed surface or a part of the bed surface forming surfaces and / or sprung by spring means. By the padding and / or the suspension of the comfort for the user is substantially increased.

In the aforementioned embodiment, the spring means may be formed in any suitable manner. An advantageous development provides that the spring means comprise a plurality of spring elements, in particular resilient slats. In this embodiment, a uniform suspension along the lying surface is achieved in a simple and cost-effective manner.

A particularly advantageous development of the embodiment with the spring means provides that the spring means are designed in the manner of a slatted frame. In this embodiment, in Liege- Position of the armrests a particularly high level of comfort for the user, as is generally known from slats to beds.

An extremely advantageous development of the teaching according to the invention provides that at least one of the armrests facing away from the seat end has a support member which is adjustable relative to the armrest. In this embodiment, the adjustment options are expanded, thus increasing the comfort for the user. In particular, an armrest which supports the upper body of the user in the lying position can be provided with a support part which supports the user in the lying position in the head and / or neck area. In this way, a separate neck support is formed, as is known from adjustable slatted frames. In addition, an arm rest supporting the user in the reclining position in the leg region can also be provided with an additional supporting part, which can for example form a calf support part, as is generally known from slatted frames. If both armrests are provided with an additional support part and the seat surface in the lying position forms part of the lying surface, the result is a fifth-part construction which is generally known from slatted frames and in which the seat surface is a middle one

Support member forms, while one of the armrests an upper body support member and its associated further support member, a headrest part and the other arm a leg support member and its associated further support member forms a Wadenstutzteil. In this way, there are many adjustment options with high comfort, as is generally known from adjustable bed bases on beds.

The adjustment of the armrests assigned further support members relative to the armrests can be made according to any suitable kinematics. In terms of a simple kinematics and thus a simple structure, it is expedient that the support member is pivotable about a pivot axis relative to the associated armrest.

If both armrests are adjustable, the adjustment of the armrests can be done by a common adjusting device. In order to expand the adjustment, it is expedient that each of the armrests is assigned a separate adjusting device for adjusting the respective armrest between its sitting position and its lying position, as provided by an advantageous development. According to the invention, the adjusting devices can be actuated in a coordinated manner. The adjustment possibilities can be further enhanced by the fact that the adjustment devices associated with the armrests can be actuated independently of one another, as provided by an advantageous further development of the invention.

Expediently, in the sitting position, mutually facing surfaces of the armrests in the lying position form the lying surface or a part of the lying surface. Another advantageous development of the teaching according to the invention provides that in the lying position of the armrests the lying surface or a part of the lying surface forming surfaces of the armrests in the reclining position relative to the seating position are offset by about 90 °.

In order to achieve a pivotable as well as displaceable mounting of the respective armrest on the base body in a simple and cost-effective manner, it is expedient that a preference be attached to the base body. example, stationary tube is arranged, which forms the third pivot axis and engages in a preferably designed as a slot guide in the armrest. If both armrests are pivotally mounted on the Grundkδrper, so each armrest is associated with a tube in this embodiment. Instead of a tube, a rod or any other elongated bearing element can be used. Preferably, the bearing element extends substantially over the entire extent of the armrest in the axial direction of the bearing element.

Another development of the teaching of the invention provides that the pivoting and moving the armrest is perpendicular to the first pivot axis by a common electric motor adjustment drive.

According to the invention, however, it is possible that for pivoting the respective armrest on the one hand and for moving the respective armrest perpendicular to the first pivot axis on the other hand different electromotive Versteilantriebe are provided.

The invention will be explained in more detail with reference to the attached highly schematic drawing, are shown in the embodiments of a seat according to the invention. It shows:

Fig. 1 is a top view of a first

Embodiment of an inventive seat in the sitting position of the armrests, Fig. 2 is a front view of the chair according to FIG. 1 in the lying position of

armrests, 1 in the sitting position of the armrests, wherein the upholstery and parts of the base body have been omitted for the representation of the adjustment devices, FIG. 3 is a front view of the seat planer according to FIG.

4 shows the view of FIG. 3 on a larger scale,

Fig. 5 in the same representation as Fig. 3 the

Seating furniture according to FIG. 3 in an adjustment of the armrests,

6 is a view from above of the chair according to FIG. 1, wherein a padding of the seat is omitted,

7 is a highly schematic view from the front of an armrest of a second embodiment of a seat according to the invention, wherein parts of an adjusting device for adjusting a support member are shown relative to the armrest, in a first Verstellage

8 shows the armrest according to FIG. 7 in a second adjustment position, FIG.

7 shows the armrest according to FIG. 7 in a fourth adjustment position, FIG. 11 shows the same illustration as FIG. 2 shows the second exemplary embodiment of the seat, FIG. 12 shows a schematic side view a third embodiment of a seat according to the invention, wherein omitted for the sake of illustration, a portion of the padding and the base body are, in a first Verstellage,

Fig. 13 in the same representation as Fig. 12, the seating furniture of FIG. 12 in a second adjustment, Fig. 14 is a perspective view of a

Part of the seat according to FIG. 12,

15 is an illustration of parts of one of

Armrests of the seat according to FIG. 12,

12 in a similar representation as FIG. 13, but on a smaller scale, the main body of the chair is partially shown,

17 in the same representation as FIG. 16 shows a fourth embodiment of a Sitzmδbel invention,

Fig. 18 in the same representation as Fig. 14 shows a fifth embodiment of a seat according to the invention, Fig. 19 shows a detail of the Sitzmδbel according to

18 and Fig. 20 another detail of the chair according to FIG. 18. In the figures of the drawing, the same or corresponding components are provided with the same reference numerals.

In Fig. 1, a first embodiment of a seat 2 according to the invention is shown in the form of an armchair having a base body 4, on which a seat surface 6 is formed. The main body 4 also has a backrest 8. Armrests 10, 12 are arranged on the base body 4 laterally of the seat surface 6, which armrests 10, 12 are arranged according to the invention in a manner explained in greater detail below, between an embodiment shown in FIG. th sitting position in which the armrests 10,12 are substantially perpendicular, and a reclining position are adjustable. As can be seen from Fig. 1, in the sitting position facing each other surfaces 14,16 of the armrests 10,12 are substantially parallel to each other. The seat 6, the backrest 8 and the armrests 10,12 are sprung and padded to increase the comfort of the user in the manner explained in more detail below. Fig. 2 shows a front view of the seating 2, wherein the armrests 10,12 are in the lying position. In the lying position, the armrests 14,16 together with the seat surface 6 form a lying surface, which in this exemplary embodiment is substantially flat. As can be seen from a comparison of FIGS. 1 and 2, the surfaces 14, 16 of the armrests 10, 12 in the lying position of the armrests 10, 12 form the lying surface, facing one another in the sitting position in the reclining position relative to the sitting position by approximately 90 ° staggered.

To adjust the armrests 10,12 from the seated position shown in Fig. 1 in the lying position shown in Fig. 2 the armrests 10,12 each associated with an electromotive adjusting device, which is explained below with reference to FIG.

Fig. 3 shows a front view of the seating 2 according to FIG. 1, wherein one of the armrest 10 associated electromotive adjusting device 18 and the armrest 12 associated electromotive adjusting device 20 can be seen. In the following, only the electromotive adjusting device 18 will be explained in more detail. The electromotive adjusting device 20 is constructed in a corresponding manner, and its components le are provided with reference numerals corresponding to the reference numerals of the components of the adjusting device 18.

Fig. 4 shows the seating 2 in relation to FIG. 3 enlarged scale. The adjusting device 18 has a spindle drive with a rotatably drivable threaded spindle 22, on which a spindle nut 24 is movably arranged in a manner secured against rotation and in the axial direction of the threaded spindle 22. The threaded spindle 22 is connected via a gear assembly 26 with an electric motor 28 in rotary drive connection. The threaded spindle 22 with the spindle nut 24 is arranged together with the electric motor 28 on a carrier element 30, which is articulated and about a horizontal pivot axis 32 (sixth pivot axis) pivotally mounted on a portion 33 of the main body 4 of the chair 2. On the spindle nut 24 is pivotally and pivotally about a horizontal pivot axis 34, a lever 36 is mounted, one end hingedly and about a fixedly arranged on the part 33 of the Grundkδrpers 4 pivot axis 38 (second pivot axis) pivotally mounted on the part 33 of the body. 4 is stored. With the other end of the lever 36, a tube 40 is connected, which moves during pivoting of the lever 36 in a slot 42 which is formed in the part 33 of the base body 4 and extends in the radius about the pivot axis 38. The tube 40 extends in this embodiment over the entire extent of the arm 10 in the axial direction of the tube 40. With the tube 40 is articulated and pivotable about a horizontal pivot axis 44 (third pivot axis) the

Armrest 10 is connected, in which a guide forming a straight slot 46 is formed, in which a tube 48 is guided, which is fixedly arranged on the part 33 of the base body 4. The tube 48 extends in this embodiment substantially over the entire extent of the armrest 10 in the axial direction of the tube 48th

For adjusting the armrest 10 from the sitting position shown in Fig. 4 in the lying position of the electric motor 28 drives the threaded spindle 22 such that the spindle nut 24 moves in Fig. 4 in the axial direction along the threaded spindle 22 to the electric motor 28. Here, the lever 36 is pivoted about the pivot axis 38 in Fig. 4 in the clockwise direction. In this case, the armrest 10 is pivoted about a pivot axis formed by the tube 48 (first pivot axis) in Fig. 4 counterclockwise, the armrest 10 slides in the longitudinal direction of the elongated hole 46 relative to the tube 48.

In the further course of the adjustment movement, the armrest 10 simultaneously guides both a pivoting movement about the pivot axis formed by the tube 48 and a linear translational movement along an imaginary straight connecting line between the first

Swivel axis 48 and the third pivot axis 44, so that the adjusting device 18 remote from the end of the armrest 10 moves during the adjustment in the drawing to the left. Due to the kinematics used, it is possible that the surface of the armrest 10 is in the lying position at the same height as the seat surface 4 and at the same time in the longitudinal direction of the lying surface, the armrest 10 connects tightly to the seat surface 4. Fig. 5 shows the armrest 10 in the end position of

Adjusting movement, in which the armrest 10 is in lying position.

The adjustment of the armrest 12 from the sitting position shown in Fig. 4 is carried out in the lying position in a corresponding manner, wherein Fig. 5 shows an adjustment in which the armrest 12 is inclined at an angle of about 45 ° to the horizontal.

To adjust the seat surface 6 in its inclination, a further electromotive adjusting device 50 is provided, which has a spindle drive with a threaded spindle 52 on which a spindle nut 54 is rotationally fixed and movable in the axial direction. The threaded spindle 52 is connected via a gearbox order 56 with an electric motor 58 in rotary drive connection. The threaded spindle 52 is arranged together with the electric motor 58 on a support element 60, which is pivotally mounted and pivotable about a horizontal pivot axis 62 on the part 33 of the base body 4. The spindle nut 54 is articulated and pivotally connected about a horizontal pivot axis 64 with a support member 68 forming the seat surface 6, whose end facing away from the pivot axis 64 is mounted pivotably about the pivot axis 32 on the part 33 of the base body 4.

In order to adjust the inclination of the seat part 68 forming the seat surface 4, the electric motor 58 drives the threaded spindle 52 in such a way that the spindle nut 54 moves toward the electric motor 58 in the axial direction of the threaded spindle 52. Here, the support member 68 is pivoted about the pivot axis 32 (fourth pivot axis) in Fig. 4 in the clockwise direction, at the same time the support member 60 pivoted in Fig. 4 about the pivot axis 62 in a clockwise direction. In this way, the inclination of the supporting surface 68 forming the seat surface 4 is adjusted, as can be seen from a comparison of FIGS. 4 and 5. As can be seen from FIG. 4, the pivot axis 32 in FIG. 4 extends out of the plane of the drawing and is thus at a distance between the plane of the drawing. see the armrests 10, 12 defining imaginary line 69 substantially perpendicular. Further, the pivot axis 32 to the not shown in Fig. 4, lying in the plane of the backrest 8 is substantially perpendicular. This can also be seen from Fig. 1, in which the pivot axis 32 is indicated by a dashed line.

As can be seen from FIG. 5, a rest position is formed in the adjustment position shown in FIG. 5, in which the armrest 10 is arranged essentially horizontally, while the support part 68 and the armrest 12 form a cross-sectionally concave part of the lying surface.

To bring the armrest 12 into the lying position, the electric motor 28 'drives the threaded spindle 22' in such a way that the spindle nut 24 'in FIG. 5 screws into the end position in which its distance from the electric motor 28' is lowest is. In this lying position, the armrest 12 is arranged substantially horizontally.

In order to bring the seat 4 in the lying position, the electric motor 58 drives the threaded spindle 52 such that the spindle nut 54 screwed back into the illustrated in Fig. 4 end position of the adjustment, in which the seat surface 4 is arranged substantially horizontally and together forms a substantially flat, horizontal lying surface with the overhead surfaces of the armrests 10,12.

As is apparent from Fig. 4, is located in the sitting position of the armrest 10, the pivot axis 48 forming tube relative to the guide 46 at the free end of the armrest 10 closer end of the guide 46. When pivoting the armrest 10 from the in 4 seat position shown in FIG. 5 shown lying position shifts the armrest 10 relative to the tube 48 until the tube 48 is relative to the guide 46 at the free end of the armrest 10 farther end of the guide 46, as shown in Fig. 5 for the armrest 12 is. In the course of the adjustment movement, the tube 48 shifts relative to the guide 46 again toward the end of the guide 46 closer to the free end of the armrest 10, until the end position of the adjustment movement shown in FIG. 5 is reached, in which the armrest 10 is in lying position.

The armrests 10,12 are sprung at their lying in the lying surface forming surfaces by spring means which are formed in this embodiment by resilient slats, of which in Fig. 5 only one bar is provided with the reference numerals 70 and 72 respectively. The spring means are thus formed in this embodiment in the manner of a slatted frame and thus provide a high suspension comfort. In a corresponding manner, the support surface 68 forming the seat surface 4 is provided on its upper side with resilient slats, of which only one slat is provided with the reference number 74 in FIG. 5. The seat is thus also designed like a slatted frame. Further, the armrests 10,12 and the seat 6 are provided at their lying in the lying position, the lying surface forming sides with a padding, which are not shown in Fig. 5, however.

The seating 2 according to the invention can quickly and easily between the sitting position and the

Lying position to be adjusted. It can thus be used according to the respective requirements both as seating and as a reclining furniture. The fact that the armrests continuously between the sitting position and the reclining position are adjustable, the seating furniture 2 according to the invention provides a variety of adjustment.

Fig. 6 shows a view from above on the seat ö- at 2, wherein the padding is omitted. It can be seen that the adjusting means 18, 20, 50 are received in the backrest 8, which is hollow.

FIG. 7 shows an arm rest 12 of a second exemplary embodiment of a seat 2 according to the invention, which differs from the arm rest 10 of the exemplary embodiment according to FIG. 1 in that a support part 76 is connected to the end of the arm rest 12 facing away from the seat surface 6 that is adjustable relative to the armrest 12. The support member 76 is connected via a lever-like connecting element 78 with a bolt 80 which is guided in a formed on the armrest 12, formed in this embodiment as a straight extending slot 82 guide. One end of a one-armed lever 84 is non-rotatably connected to the bolt 80, the other end of which is pivotally connected and pivotable about a horizontal pivot axis 86 to a linkage 88 of an adjusting device 90. The adjusting device 90 has a housing 92, which is pivotally connected via an articulation 94 and about a horizontal pivot axis 96 pivotally connected to the armrest 12. The adjusting device 90 further comprises a guided in the housing 92 telescoping adjustment 98, the electric motor in the direction of a double arrow 100 out of the housing 92 and into the housing 92 is adjustable.

Fig. 7 shows a first end position of the adjusting movement, in which an end face 102 of the support member 76 rests against an end face 104 of the armrest 12 and a lying overhead surface 106 of the support member 76 with the upper surface 16 of the armrest 12 forms a horizontal, flat support surface.

The adjusting device 90 is accommodated with its associated components inside the armrest 12, which is at least partially hollow for this purpose.

In order to achieve a movement of the adjusting element 98 relative to the housing 92, the adjusting device 90 has an electric motor which is in drive connection with the adjusting element 98 via a gear arrangement and a spindle drive such that the adjusting element corresponds to the direction of rotation of the output shaft of the electric motor 98 either extends out of the housing 92 or retracts into the housing 92. To adjust the support member 76 relative to the headrest 12, the adjusting device 90 is driven so that the adjusting element 98 extends out of the housing 92. In this case, the bolt 80 slides in a first phase of the adjustment linearly in the guide 82, so that the connecting element 78 and thus the support member 76 extends a linear translational movement in the direction of the guide 82, as shown in FIG. 8 can be seen. In the adjustment position shown in Fig. 8, the bolt 80 is located on a guide 82 disposed in the direction or in the guide direction end of the guide stop formed, so that a further translation movement of the connecting element 78 and thus of the support member 76 is prevented.

In a further movement of the adjusting element 98 in Fig. 8 to the right, the lever 84 is pivoted counterclockwise in the drawing, as shown in Fig. 9. Due to the non-rotating Connection of the lever 84 with the connecting element 78 in this case the support member 76 is pivoted in Fig. 9 counterclockwise. In the adjustment shown in Fig. 9, the top 106 of the support member 76 is inclined relative to the top 16 of the armrest 12, so that the support member 76 can serve as a neck support part for supporting a resting on the chair 2 person in the neck area.

In a further movement of the adjusting element 98 in Fig. 9 to the right lever 84 and thus via the connecting member 78 and the support member 76 is further pivoted counterclockwise in the drawing until the end face 102 of the support member 76 on the top 16 of the armrest 12th rests, as shown in Fig. 10.

Fig. 11 shows the second embodiment of the seat according to the invention 2 with the armrest 12 of FIG. 10. The armrest 10 also has a support member 108 which is formed and connected to the armrest 10, as shown by the support member 76 and the armrest 12 has been described. In the adjustment position shown in FIG. 11, in which the support parts 76, 108 are angled relative to the respective associated backrest 10 or 12, the seat furniture 2 forms a two-seater sofa. In this embodiment, the adjustment options are thus compared to the embodiment of FIG. 1 extended again.

In Fig. 12, a third embodiment of a seat 2 according to the invention is shown, which differs from the embodiment of FIG. First of all in that for pivoting the armrest 10 on the one hand and for moving the armrest 10 in the direction perpendicular to the first pivot axis on the other hand different electromotive adjustment gears are provided.

For pivoting the armrest 10 about a substantially horizontal first pivot axis 110, a first electromotive adjustment drive 112 is provided, while for linear or translational displacement of the armrest 10 perpendicular to the first pivot axis 110, a second electromotive adjustment drive 114 is provided will be explained in more detail below with reference to FIG. 14. For pivoting and shifting the armrest 12 corresponding electromotive Versteilantriebe are provided, whose operation, however, the operation of the electromotive Versteilantriebe 112, 114 corresponds and which are therefore not explained in more detail below.

The first electromotive adjustment drive 112 is designed as a spindle drive and has a threaded spindle 116, which is connected to a parallel to the first pivot axis 110, substantially horizontal pivot axis 118 with the not shown in FIG. 12 stationary Grundkδrper of the chair 2. On the threaded spindle 116 is secured against rotation and in the axial direction of the threaded spindle 116, a spindle nut 120 is arranged. An end of a lever 122 is pivotally connected to the spindle nut, the other end of which is non-rotatably connected to a pivot shaft 124 forming the first pivot axis 110. The pivot shaft 124 is rotationally fixed, but slidably connected to the armrest 10 in the direction of a slot 126 forming a guide.

The manner of the displaceable connection of the pivot shaft 124 with the armrest 10 and the operation of the second electromotive Versteilantriebs 114 will be with reference to FIG. 14 closer explained.

Fig. 14 shows a perspective view, with parts of the armrest 10 and the base 4 of the chair 2 are omitted for reasons of clarity. With the ends 128,130 of the pivot shaft 124 plate-like guide elements 132,134 are rotatably connected, in which the armrest 10 is mounted substantially perpendicular to the first pivot axis 110 in the direction of a double arrow 136 slidably. The second electromotive adjustment drive 114 has a rotatably drivable threaded spindle, which is in rotational drive connection via a gear arrangement 140 with an electric motor, not shown. The threaded spindle 138 extends substantially perpendicular to the first pivot axis 110. The gear assembly 140 is disposed together with the electric motor to a substantially perpendicular to the threaded spindle 138 extending strut 142 which is non-slidably connected to the armrest 10. The transmission 142 of the opposite end 144 of the threaded spindle 138 is connected via a pivot bearing with the armrest 10.

The pivot shaft 124 has a substantially perpendicular to the first pivot axis 110 erstrek- kende, to the threaded spindle 138 coaxial recess in which a non-rotatable in the drawing unrecognizable spindle nut is arranged, which sits on the threaded spindle 138.

The adjustment of the armrest 10 will be explained in more detail with reference to FIGS 12 and 14. For pivoting the armrest 10 about the first

The pivot axis 110 from a first end position of the adjustment movement shown in FIG. 12 into a second end position of the adjustment movement shown in FIG. 13 drives an electric motor 146 of the first electromotive element. Actuator 112, the threaded spindle in such a way that the spindle nut 120 screwed in Fig. 12 down and this pivots the lever 122 in Fig. 12 in a clockwise direction. Due to the non-rotatable connection of the lever 122 with the pivot shaft 124 and the rotationally fixed connection of the pivot shaft 124 with the armrest 10, the armrest 10 in this case is pivoted clockwise in FIG. From the drawing is not apparent and therefore it is explained here that the pivot shaft 124 is pivotally mounted on the main body of the chair 2.

At the same time, the electric motor, not shown, of the second electromotive adjusting drive 114 drives the threaded spindle 138 in such a way that the threaded spindle 138 and due to the non-displaceable connection of the threaded spindle 138 with the armrest 10 also displaces the armrest 10 relative to the pivot shaft 124, wherein the pivot shaft 124 slides in the guide 126 formed on the armrest. Thus, in this embodiment, during the adjustment, the armrest 10 at the same time performs a pivotal movement about the first pivot axis 110 as well as a linear translational movement in the direction perpendicular to the first pivot axis 110. As can be seen from FIG. 12, the pivot shaft 124 is in a position remote from the ends of the guide 126 in the end position of the adjustment movement shown in FIG. 12. During the movement, the first end position of the adjustment movement illustrated in FIG in the adjustment position shown in Fig. 13, the pivot shaft 124 moves first in the guide 126 in the direction of a seat portion 146, on which a seat is formed, closer end of the guide 126. In a further adjustment of the in 13 illustrated adjustment position in a second end position of the adjustment, in which the armrest 10 is arranged substantially vertically, the pivot shaft 124 moves in the guide 126 in the direction of the seat portion 146 opposite end of the guide 126. The kinematics of the embodiment according to FIG. 12 thus essentially corresponds to the kinematics of the exemplary embodiment according to FIG. 1.

To ensure that the kinematics obtained in the embodiment of FIG. 1 by a mechanical positive guidance is also achieved in the exemplary embodiment according to FIG. 12, in which the pivoting of the armrest 10 about the first pivot axis 110 on the one hand and the displacement in Direction perpendicular to the pivot axis 110 on the other hand by different electromotive adjusting drives 112, 114 takes place, control means are provided, which drive the first electromotive Versteilantrieb 112 and the second electromotive Versteilantrieb 114 in a coordinated manner by means of a control program. The control program is in this case selected according to the desired kinematics and designed so that a mutual blockage of the first electromotive Versteilantriebs 112 and the second electromotive Versteilantriebs 114 avoided and the desired kinematics is achieved. In order to ensure coordinated activation of the electromotive adjustment drives 112, 114 even after the power supply has been switched off or a power failure has occurred, the control means have a memory in which the control program is stored in a non-volatile manner.

In the embodiment according to FIG. 12, the seat part 146 is one in this exemplary embodiment the first pivot axis 110 pivotally mounted substantially parallel fourth pivot axis 148. For pivoting the seat part 146 relative to the armrests 10,12 and the main body of the seat part 146 is associated with an electric motor pivot drive, which has a third electric motor Versteilantrieb 150. The third electromotive adjustment drive 150 has an electric motor 152, which is in rotational drive connection via a gear arrangement, not shown in the drawing, with a rotationally drivable threaded spindle 154. On the threaded spindle 154 is rotatably and in the axial direction of the threaded spindle 154 movably arranged a spindle nut 156, with the articulated and pivotable about a horizontal pivot axis a two-armed lever 160 is connected away from its ends. One end of the two-armed lever 160 is pivotally and pivotably mounted about a horizontal pivot axis 162 fixed to the base body 4, while the other end of the two-armed lever 160 is pivotally connected to the seat part 146 pivotally and about a horizontal pivot axis 164 remote from the fourth pivot axis 148 ,

As is apparent from FIG. 12, the fourth pivot axis 148 extends substantially perpendicular to an imaginary line indicated by a dot-dash line 166 in FIG. 12, which defines the distance between the armrests 10, 12.

In order to move the seat part 146 out of the adjustment position shown in FIG. 12 into an adjustment position shown in FIG. 13, the electric motor 152 drives the

Threaded spindle 154 such that the spindle nut 156 screwed down in Fig. 12 down. Here, the two-armed lever 160 is pivoted about the pivot axis 162 in Fig. 12 in the clockwise direction, whereby the seat Part 146 in Fig. 12 counterclockwise about the fourth pivot axis 148 is pivoted.

The control of the third electromotive Versteilantriebs 150 is effected by the control means not shown in the drawing. In this case, the third electromotive adjustment drive can be controlled independently of the first electromotive adjustment drive 112 and / or the second electromotive adjustment drive 114. However, the activation of the third electromotive adjustment drive 150 can also take place in a manner coordinated with the actuation of the first electromotive adjustment drive 112 and / or of the second electromotive adjustment drive 114. Fig. 12 shows the seating in a reclining position in which the armrests 10, 12 together with the seat portion 146 form a substantially continuous and horizontal lying surface, so that in this position, a reclining furniture is formed. In a seating position of the chair, the armrests 10, 12 are relative to the

Seat part 146 arranged substantially vertically, as shown for example in Fig. 4 for the embodiment of FIG. 1. The control means of the chair are designed so that any intermediate positions can be taken between the lying position and the sitting position, the different Versteilantriebe according to the particular desired kinematics independently or at least partially be controlled in dependence on each other.

13, an intermediate position is shown, in which the armrest 12 is arranged essentially horizontally, while the seat part 146 is moved relative to the armrest 12 about the pivot axis 148, counter to the clockwise direction. one hand is pivoted and the armrest 12 is pivoted about the pivot axis 110 relative to the seat part 146 in a clockwise direction. This position substantially corresponds to a rest position, as it is known from adjustable slatted frames or the like. From the drawing it can be seen that in this rest position the legs of a person resting on the furniture are supported by the armrest 12, while the buttocks are supported by the seat part 146 and the backs of the person by the armrest 10. Compared with the seat position shown in Fig. 4 for the embodiment of FIG. 1, the person thus rests offset by 90 ° on the seating.

Fig. 15 shows the armrest 10 in a side view, the padding being omitted.

Fig. 16 shows a fourth embodiment of a Sitzmδbels invention, which differs from the embodiment of FIG. 12 in that the armrest 12 facing the end of the seat portion 146, a fourth electric motor Versteilantrieb 166 is assigned, which is constructed as the third electric motor Versteilantrieb Fig. 16 shows the chair 2 in a rest position, while Fig. 17 shows the chair in a lying position. By means of the fourth electromotive adjusting drive 166, it is possible to pivot the seat part 146 about the pivot axis 164 in FIG. 16 in a clockwise or counterclockwise direction. Notwithstanding the embodiment of FIG. 12 thus the seat portion 146 is not fixedly mounted on the base body. Rather, the pivot axis 164 'is arranged on a lever 160', which is in operative connection with the fourth electromotive adjusting drive, as is the case for the lever 160 with respect to the third electromotive adjusting device. drive 150 has been described. By means of the third electromotive adjustment drive 150 and the fourth electromotive adjustment drive 166, it is possible to adjust both the inclination of the seat part 146 and its height.

As is apparent from FIGS. 16 and 17, the pivot shaft 124 is pivotally mounted on the base body 2 on a stationary pivot bearing. Furthermore, it can be seen from FIGS. 16 and 17 that the pivot axis 164 is formed by a pivot shaft which extends over the entire depth of the seat part 146 and is mounted on opposite wall parts of the base body 2. In order to enable a movement of the pivot shaft 164 forming the pivot shaft, a slot 42 is provided which is formed in the base body.

In Fig. 18, a fifth embodiment of a seat 2 according to the invention is shown, which differs from the embodiment of FIG. 12 in that in addition to the seat portion 146, a further seat portion 146 'is provided. The seating 2 thus forms a double-seater in this embodiment. As can be seen from FIG. 18, the seat parts 146, 146 'are arranged next to one another, wherein the further seat part 146' is arranged adjacent to the armrest 12. The further seat portion 146 'is pivotally mounted about a fourth pivot axis 148' on the base body 2, wherein for pivoting the seat parts 146 ', a further third electric motor adjustment drive 150' is provided. The manner of storage of the other seat part 146 'on the base body 2 corresponds to the storage of the seat part 146 on the base body 2 and is therefore not explained in detail. The other third electromotive adjustment drive 150 'is constructed as described for the electric motor adjustment drive 150. It is therefore not explained here.

Fig. 19 shows in an enlarged scale a detail of the embodiment of FIG. 18 in the region of the armrest 10 and the seat part 146, while Fig. 20 shows a detail in the region of the armrest 12 and the other seat part 146 '.

Claims

claims

1. Seating furniture, in particular armchairs,

with a base body (4) on which a seat surface (6) is formed,

with armrests (10, 12) arranged laterally from the seat surface (6),

at least one of the armrests (10, 12) being adjustable from a sitting position into a lying position, in which one surface of the armrest (10, 12) forms a lying surface or a part of a lying surface, such that a reclining furniture is formed in the reclining position,

wherein at least one of the armrests about a first

Pivot axis is pivotable relative to the base body,

characterized,

that the or each pivotable armrest (10, 12) associated with an electric motor pivot drive and

in that the armrest (10, 12) is mounted displaceably on the base body (4) in the direction perpendicular to the first pivot axis.

2. Seating furniture according to claim 1, characterized in that for pivoting the respective armrest (10, 12) of the same one about a second pivot axis (38, 38 ') pivotally connected to the base body mounted lever (36, 36 ') is assigned, the second pivot axis (38, 38') opposite end about a third pivot axis (44, 44 ') pivotally connected to the armrest (10, 12) is connected and that the lever (36, 36 ') is in operative connection with the pivot drive.

3. Seating furniture according to claim 2, characterized in that the armrest (10, 12) along an imaginary connecting line between the first pivot axis (48,

48 ') and the third pivot axis (44, 44') is displaceably mounted on the base body (4).

4. Seating furniture according to one of claims 1 to 3, character- ized in that the seat surface is formed on at least one seat part (68) which relative to the base body (4) about a fourth pivot axis (32) pivotally mounted on the base body (4 ) is stored.

5. Seating furniture according to claim 4, characterized in that at least one of the seat parts (68, 68 ') is associated with an electric motor pivot drive.

6. Seating furniture according to claim 4 or 5, characterized in that at least two seat parts (68, 68 ') are provided and that at least one of the seat parts

(68, 68 ') is associated with a separate pivot drive.

7. Seating furniture according to one of claims 4 to 6, character- ized in that each of the seat parts (68, 68 ') is associated with a separate pivot drive.

8. Seating furniture according to one of claims 4 to 7, characterized in that the fourth pivot axis (32) to a the distance between the armrests (10, 12) defining the imaginary line is substantially perpendicular.

9. Seating furniture according to one of the preceding claims, characterized in that the pivot drive has a linear drive whose output member is in operative connection with the lever (36).

10. Seating furniture according to claim 9, characterized in that the output member is a spindle nut (24) which is arranged against rotation and movable in the axial direction on a rotatably driven threaded spindle (22), wherein the spindle nut (24) about a fifth pivot axis pivotally the lever (36) and the threaded spindle (22) about a sixth pivot axis is pivotally connected to the base body (4).

11. Seating furniture according to claim 9, characterized in that the output member is a threaded spindle which is mounted against rotation and movable in the axial direction and on which a rotatably driven spindle nut is arranged, wherein the threaded spindle about a fifth pivot axis pivotally connected to the lever and the spindle nut about a sixth pivot axis is pivotally connected to the base body.

12. Seating furniture according to one of the preceding claims, characterized in that the second pivot axis (38) and / or the third pivot axis (44) and / or the fourth pivot axis (32) and / or the fifth pivot axis (34) and / or the sixth pivot axis to the first pivot axis (48) is substantially parallel or are.

13. Seating furniture according to one of the preceding claims, characterized in that below the first pivot axis (48), the second pivot axis (38), the third pivot axis (44), the fourth pivot axis (32), the fifth pivot axis (34) and the sixth pivot axis at least two of the pivot axes are parallel to each other.

14. Seating furniture according to one of the preceding claims, characterized in that at least one of

Swivel axes (32, 34, 38, 44, 48) is a substantially horizontal pivot axis.

15. Seating furniture according to one of the preceding claims, characterized in that the lying in lying position armrests (10,12) form the lying surface together with the seat surface (6).

16. Seating furniture according to one of the preceding claims, characterized in that the armrests (10,12) between its sitting position and its reclining position are substantially continuously adjustable.

17. Seating furniture according to one of the preceding claims, characterized in that the lying surface in lying position of the armrests (10,12) is a substantially flat surface.

18. Seating furniture according to one of the preceding claims, characterized in that the armrests (10,12) are plate-like.

19. Seating furniture according to one of the preceding claims, characterized in that the armrests (10,12) to their upholstered in the lying position, the bed surface or a part of the bed surface forming surfaces and / or are sprung by spring means.

20. Seating furniture according to claim 19, characterized in that the spring means comprise a plurality of spring elements, in particular resilient slats (70, 72).

21. Seating furniture according to claim 19 or 20, characterized in that the spring means are designed in the manner of a slatted frame.

22. Seating furniture according to one of the preceding claims, characterized in that at least one of the Armleh- nen (10,12) at its end facing away from the seat a support member (76,108) which is relative to the armrest (10,12) adjustable ,

23. Seating furniture according to claim 22, characterized marked, that the support part (76,108) about a pivot axis relative to the associated armrest (10,12) is pivotable.

24. Seating furniture according to one of the preceding claims, characterized in that each of the armrests (10,12) is associated with a separate adjustment device (18,20) for adjusting the respective armrest (10,12) between its sitting position and its lying position.

25. Seating furniture according to claim 24, characterized in that the armrests (10,12) associated adjusting devices (18,20) are independently operable.

26. Seating furniture according to one of the preceding claims, characterized in that in the sitting position mutually facing surfaces (14,16) of the armrests (10,12) in the lying position form the lying surface or part of the lying surface.

27. Seating furniture according to one of the preceding claims, characterized in that in the lying position of the armrests (10,12) the lying surface or a part of the lying surface forming surfaces (14,16) of the armrests

(10,12) are arranged offset in the reclining position relative to the seating position by about 90 °.

28. Seating furniture according to one of claims 2 to 27, characterized in that on the base body a preferably stationary tube or the like bearing element is arranged, which forms the third pivot axis (48) and in a preferably designed as a straight slot guide (46) on the Armrest (10) engages.

29. Seating furniture according to one of the preceding claims, characterized in that the pivoting and displacement of the armrest (10, 12) is perpendicular to the first pivot axis by a common electromotive adjusting drive.

30. Seating furniture according to one of claims 1 to 28, characterized in that for pivoting the armrest (10, 12) on the one hand and for moving the armrest (10, 12) perpendicular to the first pivot axis different electromotive Versteilantriebe are provided.