EP3491973A1 - Supporting device adjustable by an electric motor - Google Patents

Abstract

An electromotively adjustable support device (2) for upholstery on seating and / or reclining furniture, in particular a mattress of a bed, has a base body (4) which has at least two support parts which can be adjusted relative to one another and on which the upholstery is supported when the support device is used supports, as well as at least one electromotive furniture drive for adjusting the support parts relative to one another, with a first adjusting unit which has a stationary first base body and a first adjusting member (40) which is movable relative thereto, the first adjusting member (40) having an electric motor (36) in Drive connection is made, and a second adjusting unit, which has a stationary second base body and a second adjusting member movable relative to the same. According to the invention, the support device has at least one Bowden cable (60) with a traction cable (62) accommodated in a pressure-resistant sheathing (64), one end of the traction cable (62) on the first base body (34) and the end of the sheathing associated with this end Bowden cable is fixed to the first adjusting element (40), while the other end of the pull cable (62) is fixed to the second adjusting element and the end of the sheathing of the Bowden cable assigned to this end is fixed to the second base body.

Description

The invention relates to an electromotive adjustable support device referred to in the preamble of claim 1 for supporting a padding of a seat and / or reclining furniture.

Such support means are well known, for example in the form of slatted frames.

Especially in nursing beds there is a requirement to adjust the height of a support arrangement on which the mattress of the nursing bed rests.

By DE 94 06 7026 U1 is an electric motor adjustable support means of the type in question, which has a base body and a support assembly for supporting the padding. The support device known from the publication is designed as a slatted base, wherein the support assembly comprises a head part, a middle part and a foot part. The support means further comprises adjusting means for adjusting the support assembly in its inclination and / or its height relative to the base body.

By EP 1 708 595 B1 is a support means in the form of a chair known, the seat can be adjusted via a pivot shaft mechanism in its inclination and its height relative to the main body of the chair.

By EP 0 606 575 A1 a lifting device is known, which is used in particular for hospital and nursing beds, slatted frames and TV chairs and by means of which leaves a component of a piece of furniture relative to a base body of the furniture can be adjusted in height. The adjusting means have an actuatable by means of a spindle drive scissors.

The invention has for its object to provide a support means referred to in the preamble of claim 1 species, which is simple and robust in construction and which is suitable for applying large forces.

This object is achieved by the invention defined in claim 1.

The invention will be explained in more detail with reference to the accompanying drawing, in which an embodiment of a support device according to the invention are shown. All the features described in the description, illustrated in the drawing and claimed in the claims taken alone and in any suitable combination with each other form the subject of the invention, regardless of their summary in the claims and regardless of their description or representation in the drawing , The disclosure content of the present application also includes sub-combinations of claim 1, in which one or more features of claim 1 are omitted or replaced by other features.

FIG. 1

eine Perspektivansicht eines ersten Il-lustrationsbeispieles einer Stützein-richtung in Form eines Lattenrostes in einer unverstellten Ausgangslage,

FIG. 2

in gleicher Darstellung wie FIG. 1 das Illustrationsbeispiel gemäß FIG. 1 in einer Endlage der Verstellbewegung eines Oberkörperstützteiles und eines Bein-stützteiles,

FIG. 3

in gleicher Darstellung wie FIG. 1 das Illustrationsbeispiel gemäß FIG. 1, wo-bei aus Gründen der Veranschaulichung einige Bauteile weggelassen sind,

FIG. 4

in gleicher Darstellung wie FIG. 2 Ein-zelheiten einer Antriebseinrichtung der Stützeinrichtung gemäß FIG. 1,

FIG. 5

in gleicher Darstellung wie FIG. 4 Ein-zelheiten der Antriebseinrichtung aus einer anderen Perspektive,

FIG. 6

in gleicher Darstellung wie FIG. 5, jedoch in vergrößertem Maßstab, eine Einzelheit aus FIG. 5,

FIG. 7

in gleicher Darstellung wie FIG. 5 die Antriebseinrichtung aus FIG. 5, wobei zur Verdeutlichung der Verstellung des Kopfstützteiles relativ zu dem Oberkörperstützteil weitere Bauteile der Stützeinrichtung weggelassen sind,

FIG. 8

in gleicher Darstellung wie FIG. 7, jedoch aus einer anderen Perspektive die Stützeinrichtung gemäß FIG. 2, wobei noch weitere Bauteile der Stützeinrichtung weggelassen sind,

FIG. 9

aus einer anderen Perspektive und in vergrößertem Maßstab eine Einzelheit aus FIG. 8,

FIG. 10

in perspektivischer Darstellung ein zweites Illustrationsbeispiel einer Stützeinrichtung in der Ausgangslage der Verstellbewegung, in der die Stützteile eine horizontale Stützebene aufspannen,

FIG. 11

in gleicher Darstellung wie FIG. 10 die Stützeinrichtung gemäß FIG. 10, wobei sich die Stützteile in einer Verstelllage befinden, die zwischen der Ausgangslage und der Endlage der Verstellbewegung liegt,

FIG. 12

in gleicher Darstellung wie FIG. 10 die Stützeinrichtung gemäß FIG. 10, wobei sich die Stützteile in der Endlage der Verstellbewegung befinden,

FIG. 13

in gleicher Darstellung wie FIG. 10 die Stützeinrichtung gemäß FIG. 10, wobei zur Verdeutlichung des Aufbaus der Antriebseinrichtung Bauteile der Stützeinrichtung weggelassen sind,

FIG. 14

in gleicher Darstellung wie FIG. 13, jedoch in einer etwas geänderten Perspektive die Stützeinrichtung gemäß FIG. 10,

FIG. 15

in gleicher Darstellung wie FIG. 13 die Stützeinrichtung gemäß FIG. 10 in der Endlage der Verstellbewegung,

FIG. 16A - FIG. 16C

eine Perspektivansicht eines Ausführungsbeispieles einer erfindungsgemäßen Stützeinrichtung in verschiedenen kinematischen Phasen,

FIG. 17A - FIG. 17D

aus einer anderen Perspektive eine Einzelheit aus FIG. 16 in verschiedenen kinematischen Phasen der Verstellbewegung,

FIG. 18A - FIG. 18C

die Stützeinrichtung gemäß FIG. 16 in verschiedenen kinematischen Phasen der Verstellbewegung, wobei aus Gründen der Veranschaulichung Bauteile der Stützeinrichtung weggelassen sind,

FIG. 19

in zu FIG. 17C ähnlicher Darstellung die Einzelheit gemäß FIG. 17C, wobei aus Gründen der Veranschaulichung weitere Bauteile der Stützeinrichtung weggelassen sind und

FIG. 20

in vergrößertem Maßstab Bauteile einer Hubanordnung der Stützeinrichtung gemäß FIG. 16.

It shows:

FIG. 1

3 is a perspective view of a first exemplary embodiment of a support device in the form of a slatted base in an unadjusted starting position;

FIG. 2

in the same representation as FIG. 1 the illustration example according to FIG. 1 in an end position of the adjusting movement of an upper body support member and a leg support member,

FIG. 3

in the same representation as FIG. 1 the illustration example according to FIG. 1 where some components have been omitted for the sake of illustration,

FIG. 4

in the same representation as FIG. 2 Ein-zelheiten a drive device of the support device according to FIG. 1 .

FIG. 5

in the same representation as FIG. 4 Details of the drive device from a different perspective,

FIG. 6

in the same representation as FIG. 5 but on an enlarged scale, a detail FIG. 5 .

FIG. 7

in the same representation as FIG. 5 the Drive device off FIG. 5 in which, to clarify the adjustment of the head support part relative to the upper body support part, further components of the support device are omitted,

FIG. 8th

in the same representation as FIG. 7 , but from another perspective, the support device according to FIG. 2 , wherein further components of the support device are omitted,

FIG. 9

from a different perspective and on an enlarged scale a detail FIG. 8th .

FIG. 10

a perspective view of a second illustration example of a support device in the initial position of the adjustment movement, in which the support parts span a horizontal support plane,

FIG. 11

in the same representation as FIG. 10 the support device according to FIG. 10 , wherein the support parts are in an adjustment position which lies between the initial position and the end position of the adjustment movement,

FIG. 12

in the same representation as FIG. 10 the support device according to FIG. 10 , wherein the support parts are in the end position of the adjusting movement,

FIG. 13

in the same representation as FIG. 10 the Supporting device according to FIG. 10 in which, to clarify the structure of the drive device, components of the support device have been omitted,

FIG. 14

in the same representation as FIG. 13 but in a slightly different perspective, the support device according to FIG. 10 .

FIG. 15

in the same representation as FIG. 13 the support device according to FIG. 10 in the end position of the adjustment movement,

FIG. 16A - FIG. 16C

a perspective view of an embodiment of a support device according to the invention in different kinematic phases,

FIG. 17A - FIG. 17D

from a different perspective, a detail FIG. 16 in different kinematic phases of the adjustment movement,

FIG. 18A - FIG. 18C

the support device according to FIG. 16 in various kinematic phases of the adjustment movement, wherein, for reasons of illustration, components of the support device have been omitted,

FIG. 19

in to FIG. 17C similar representation the detail according to FIG. 17C , wherein for reasons of illustration, further components of the support means are omitted and

FIG. 20

on an enlarged scale components of a lifting arrangement of the support device according to FIG. 16 ,

In the figures of the drawing, the same or corresponding components are provided with the same reference numerals. The drawing schematically illustrates an exemplary embodiment of a support device according to the invention. For reasons of illustration, components of the support device have been omitted in individual figures of the drawing. These components are to be correspondingly supplemented accordingly.

To explain a first illustrative example of the invention is hereinafter referred to the FIGS. 1 to 9 Referenced.

In FIG. 1 a first illustrative example of an electromotive adjustable support device 2 according to the invention is shown, which is formed in this illustration example as a slatted frame. The support device 2 has a base body 4, which has support parts on which a mattress of a bed is supported when using the support means 2. For the sake of illustration, the mattress is omitted throughout the drawing.

The support device 2 has in the illustrated illustration example (see. FIG. 2 ) to a stationary central support member 6, with the articulated and pivotable about a horizontal pivot axis, an upper body support member 8 is connected to the middle Support member 6 opposite end hinged and pivotable about a horizontal pivot axis, a headrest part 10 is connected. With the upper body support member 8 facing away from the end of the central support member 6 pivotally about a horizontal pivot axis, a leg support member 12 is pivotally connected to the central support member 6 opposite end hinged and pivotable about a horizontal pivot axis a calf support member 14.

For pivotal adjustment of the support members 6 to 14 relative to each other, an electromotive drive means 16 is provided which has a drive unit 18 which is arranged on a first longitudinal beam 20 on the central support member 6. At a transversely to the longitudinal direction of the support means 2 to the first longitudinal spar 20 spaced second longitudinal beam 22, a further drive unit 18 'of the electric motor drive means 16 is arranged. The drive units 18, 18 'are described below with reference to FIGS. 5 to 9 explained in more detail.

With the support members 6 to 14 bar holders are connected to which are held in use of the support means 2 resilient slats on which the mattress is supported. In the drawing (cf. FIG. 1 and FIG. 2 ) is only a slat holder provided with the reference numeral 24. The resilient slats are not shown in the drawing for purposes of illustration.

FIG. 1 shows the support device 2 in an unobstructed Initial position of the support members 6 to 14, in which the support members 6 to 14 span each other with a horizontal or approximately horizontal support plane for supporting the mattress.

FIG. 2 shows the support means 2 in an end position of the adjusting movement in which the upper body support member 8 with the head support member 10 and the leg support member 12 with the calf support member 14 are pivoted to the maximum relative to the central support member 6 and thus adjusted. The initial position of the support device 2 corresponds to a lying position of the support device 2, while the in FIG. 2 shown end position corresponds to a seating position. Between the starting position and the end position, any adjustment positions are possible.

For purposes of illustration power supply and control means for driving the drive unit 16 are not shown in the drawing. However, the structure and mode of operation of corresponding voltage supply and control means are generally known to the person skilled in the art and will therefore not be explained in more detail here.

According to the invention, the upper body support part 8 is designed and set up such that the pivot axis is mounted to be translationally movable in the longitudinal direction of the support device 2. Hierduch it is avoided that the mattress is compressed during the pivotal adjustment of the upper body support member 8 relative to the central support member 6. This is in the adjusted position of the upper body support member 8 a high level of comfort for a User of the support device 2 ensures. As if from a comparison of FIGS. 1 and 2 it can be seen, the translationally movable mounting of the pivot axis has the consequence that in an adjustment from the initial position in the direction of the end position of the distance between the in the starting position (see. FIG. 1 ) adjacent to each other slat holders on the central support member 6 and the upper body support member 8 increases. In this way, a compression of the mattress is avoided.

The same applies to an adjustment of the leg support member 12 relative to the central support member 6. The leg support member 12 associated pivot axis is also mounted translationally movable in the longitudinal direction of the support means 2. Demtentsprechend increases in a pivotal adjustment of the leg support member 12 relative to the central support member 6, the distance between the slat holders on the central support member 6 and the leg support member 12, which in the initial position of the adjustment (see. FIG. 1 ) are arranged adjacent to each other. Thus, a compression of the mattress is avoided in the area of the leg support member 12. Due to the independent adjustment and translational movement of the upper body support member 8 and the leg support member 12 relative to the central support member 6 a compression of the mattress is avoided in each adjustment and thus de-mattress the mattress in all adjustment of the support means 2.

Like from the FIGS. 1 and 2 it can be seen, the support device 2 has an outer frame 26 to which the base body 4 is attached.

FIG. 3 shows the support 2 according to FIG. 1 , wherein for reasons of illustration on the first longitudinal beam 20 in the region of the central support member 6, the upper body support member 8 and the leg support member 12 bar holder are omitted, so that first longitudinal beams 28, 30, 32 of the central support member 6 and des Oberkörperstützteiles 8 bzw. Leg support member 12 can be seen.

Based on FIGS. 4 to 6 The structure of the support device 2 according to the invention with respect to the drive device 16 will be explained in more detail below.

In the following, only the drive unit 18 assigned to the first longitudinal beam 20 will be explained in more detail. The second longitudinal beam 22 associated drive unit is constructed accordingly and will therefore not be explained here.

The drive unit 18 has a base element 34, which is formed in this embodiment by an injection molded part made of plastic and on which the components of the drive unit 18 are arranged or mounted. An electric motor 36 is arranged on the base element 34, the output shaft of which is in rotary drive connection with a threaded spindle 38 mounted fixedly and rotatably drivable on the base element 34. In the illustrated embodiment, the rotary drive connection between the output shaft the electric motor 36 and the threaded spindle 38 made via a worm gear. The output member of the drive unit 18 is formed by a spindle nut 40 which is arranged against rotation and movable in the axial direction of the threaded spindle 38 on the same.

The spindle nut 40 forms a carriage on which a pivot axis 42 is mounted, about which the upper body support member 8 relative to the central support member 6 (see. FIG. 3 and FIG. 4 ) is pivotable.

FIG. 5 shows the drive unit 18 from the side facing away from the electric motor 36.

FIG. 6 shows the drive unit 18 in the same representation as FIG. 5 but on an enlarged scale.

The adjustment of the upper body support member 8 (second support member) relative to the central support member 6 (first support member) takes place in such a way that the second support member or an associated component during the translational movement runs onto a first set-up element and pivots in this case. As based on FIG. 4 explained, by means of the spindle drive 38, 14 causes a translational movement of the spindle nut 40 and thus of the upper body support member 8 relative to the central support member 6. In the illustrated embodiment, the pivotal movement of the upper body support member 8 relative to the central support member 6 is effected in that laterally next to the translational movement path of the spindle nut 40 and thus of the upper body support member 8, a first raising element 44 is arranged on the one with the Upper body support part 8 connected second Aufstellelement 46 runs, so that in this case the upper body support member 8 pivots relative to the central support member 6.

In the illustrated example of illustration, the first erecting element 44 is formed integrally with the base element 34. The first raising element 44 is formed integrally with the first longitudinal spar 30 of the upper body support member 8, wherein the first longitudinal spar 30 and the second raising member 46 are also formed in the illustrated embodiment by an injection molded plastic. Thus, in the illustrated embodiment, the second raising element 46 is pivotally connected to the upper body support member 8. In a modification of this embodiment, however, the second Aufstellelement can also be movably connected to the upper body support member 8, provided in the desired manner, an erection of the upper body support member 8 and thus a pivoting thereof relative to the central support member 6 is effected.

As in particular from FIG. 6 it can be seen, in the illustrated illustration example, the positioning elements 44, 46 are formed in cross section as a cam body, wherein the positioning elements 44, 46 are formed in the illustrated embodiment in cross-section substantially complementary. How out FIG. 6 is apparent, the upper body support member 8 in the starting position (see. FIG. 1 ) arranged horizontally, wherein the dead center of the pivoting adjustment of the upper body support member 8 is overcome in the translational movement of the spindle nut 40 and the pivoting movement is carried out so.

In order to avoid distortion of the upper body support member 8 during the adjustment, the translational movement of the carriage 40 formed by the spindle nut 40 of the first drive unit 18 is transmitted to a translationally movably mounted carriage of the second longitudinal spar 22 associated drive unit. For this purpose, synchronization means are provided, which are described below on the basis of FIGS. 8 and 9 be explained in more detail. This slide, which is mounted to be translationally movable on the second longitudinal beam 22 provided drive unit is unpowered, so that the adjustment of the two longitudinal beams of the upper body support member 8 is effected by the electric motor 36, which is ensured by the synchronization means that it is not a distortion of the upper body support member 8 comes.

The adjustment of the leg support member 12 takes place in this corresponding manner. For this purpose, the first longitudinal beam 32 of the leg support part 12 is pivotably mounted about a pivot axis 48 on a carriage 50, which is mounted to be translationally movable on the base element 34 of the drive unit 18.

The second longitudinal member 22 associated drive unit, the drive unit 18 according to an electric motor which drives a carriage, the is formed by the spindle nut of a spindle drive, as has been previously described for the carriage 40. Translational movements of this driven carriage of the drive unit associated with the second longitudinal beam 22 are transmitted to the carriage 50 by the synchronization means explained in greater detail below. Thus, the carriages associated with the upper body support member 8 are driven by the electric motor 36, while the carriages associated with the leg support member 12 are driven by the electric motor associated with the drive unit associated with the second longitudinal beam 22. In other words, the electric motor 36 causes an adjustment of the upper body support member 8 with the head support member 10, while the corresponding, the second longitudinal beam 22 associated electric motor causes an adjustment of the leg support member with the calf support member.

Due to the pivotal connection of the calf support member 14 with the leg support member 12, the calf support member 14 pivots due to its gravity relative to the leg support member 12 when it is pivoted. The end position of the adjustment movement (cf. FIG. 2 ) is defined by acting between the leg support member 12 and the calf support member 14 stop.

Based on FIG. 7 The adjustment of the head support member 10 relative to the upper body support member 8 will be explained below.

To adjust the headrest part 10 is a rod-like adjusting element 52 is provided, one end of which is pivotally mounted and to the pivot axis 42 coaxial with the carriage 40. The other end of the adjusting element 52 is mounted about a pivot axis 44 on a first longitudinal spar 56 of the headrest part 10. The pivot axis 54 is mounted eccentrically to a pivot axis 58 about which the head support member 10 is pivotable relative to the upper body support member 8. Due to the eccentric to the pivot axis 58 arrangement of the pivot axis 54 pivots when pivoting the upper body support member 8 relative to the mitlleren support member 6, the head support member 10 relative to the upper body support member 8 until the end position of the adjustment is reached (see. FIG. 2 ).

The provision of the support members 8 to 14 relative to the central support member 6 in the starting position (see. FIG. 1 ) takes place under the weight of the support members 6 to 12, optionally additionally under the load of a resting on the support means 2 person, wherein the drive means remains switched on.

In the illustrated illustration example, the first setting element 44 is arranged in a stationary manner relative to the middle support part 6 (first support part), while the second setting element 46 is arranged to be movable. However, according to the respective requirements, it is also possible to arrange both positioning elements 44, 46 so as to be movable relative to the first supporting part.

The synchronization means according to the invention have a Bowden cable 60 (see. FIG. 8th ), which has a pull rope (soul) 62, which is accommodated in a flexible, but compression-resistant sheath 64 in the pulling direction. One end 66 of the traction cable 62 is fixed to the stationary base member 34. The end 66 of the traction cable 62 facing the end 68 of the casing is fixed against displacement on the carriage 40, as shown FIG. 9 seen.

As explained in the foregoing, a carriage is provided on the second longitudinal beam 22, which corresponds to the carriage 40, but is designed without drive.

The end 66 remote from the other end of the traction cable 62 is fixed against displacement on this non-driven carriage, while the end 68 remote from the other end 70 of the casing is fixed against displacement on a second longitudinal member 22 associated base member, on which the non-driven carriage is mounted translationally movable , For purposes of illustration, the connection of the traction cable 62 and the end 70 of the casing with this non-driven carriage is not shown in the drawing.

In the starting position of the adjusting movement, the distance between the spindle nut 40 and the end 66 of the traction cable fixed to the base element 34 is minimal. During the adjustment, the spindle nut 40 moves in FIG. 8th translationally to the left, wherein the upper body support member 8 pivots in the manner described above.

In the translational movement of the spindle nut 40th in FIG. 8th to the left, the pull cable 62 of the Bowden cable 60 remains stationary, while the sheath in FIG. 8th is moved to the left. Due to this displacement of the shroud, the distance of the end 70 of the Bowden cable 60 from the associated end of the traction cable 62 is reduced. Since the end 70 is fixed to the further base element associated with the second longitudinal spar 22 and the traction cable is fixed to the non-driven carriage assigned to this base element This slide synchronized with the carriage formed by the spindle nut 40. In this way, the adjusting force applied by the electric motor 36 is introduced synchronously or approximately synchronously into the two longitudinal members of the upper body support member 8, so that torsion of the upper body support member 8 during the adjustment movement is avoided.

As previously described, the drive unit associated with the second longitudinal beam 22 also has a carriage driven by an electric motor in the form of a spindle nut, the configuration corresponding to the configuration described for the base member 34, the electric motor 36 and the spindle drive 38,40. As a synchronization means is a Bowden cable 70 with a pull cable 72 and a sheath 74. According to the configuration described for the end 66 of the Bowden cable 60, the end 76 of the Bowden cable 70 is fixed to the second longitudinal spar 22 associated base member 34, while the end 76 of Zugseiles 72 facing the end 78 of Sheath 74 is fixed to this spindle nut. The end 78 facing away from the end 80 of the casing 74 is connected to the in FIG. 8th base member 34, not shown, while the end 76 facing away from the end of the traction cable 72 is fixed to a leg support member 12 associated drive-less carriage 82.

In a movement of the second longitudinal beam 22 associated spindle nut in the direction of the end position of the adjustment, the distance between the carriage 82 and the end 80 of the casing 74 is reduced, so that the carriage 82 in FIG. 8th moved to the right. In this way, the adjusting force applied by the electric motor associated with the second longitudinal member 22 is introduced synchronously into the two longitudinal members of the leg support member 12.

As already explained above, the electric motor 36 associated with the first longitudinal beam 20 thus effects an adjustment of the upper body support part 8 with the head support part 10 relative to the middle support part 6, while the electric motor associated with the second longitudinal beam 22 effects an adjustment of the leg support part 12 with the calf support part 14 ,

Below is on the FIGS. 10 to 15 Referenced.

FIG. 10 shows the second illustration example in one FIG.1 corresponding view. The second illustration example first differentiates from the first illustration example in that the support device 2 is designed to support a box spring mattress is. Since in such a box-spring mattress, the suspension, which is provided in a slatted frame by the resilient slats, is integrated into the mattress, are in the embodiment according to FIG. 10 formed the support parts plate-like.

In the illustrated illustration example, the support device is formed 4-membered and has a stationary central support member 6, with the one hand, an upper body support member 8 and on the other hand, a leg support member 12 is pivotally connected together with a calf support member 14.

FIG. 11 shows the support means 2 in an adjustment position, which between the in FIG. 10 illustrated starting position of the adjusting movement and a in FIG. 12 shown end position of the adjustment is in which the support members 8, 12, 14 are adjusted relative to the central support member 6 maximum.

The drive device 16 of the second embodiment will be described below with reference to FIG FIGS. 13 to 15 explained in more detail. For the sake of illustration are in the FIGS. 13 to 15 various components of the support device 2 omitted.

The Figures 13 and 14 show the support device 2 in the starting position from different perspectives, while FIG. 15 the support device 2 in the end position of the adjusting movement shows.

In the second illustration example, the outer frame 26 has longitudinal bars 80, 80 ', each formed by a C-profile. The openings of the C-profiles the longitudinal beams 80, 80 'are facing each other. For adjusting the upper body support member 8 relative to the central support member 6, a drive unit 82 is provided, while for adjusting the leg support member 12 with the calf support member 14 relative to the central support member 6, a further drive unit 82 'is provided. In the following, exclusively drive unit 82 will be explained in more detail. The drive unit 82 'is designed accordingly, and its components are provided with reference numerals corresponding to the reference numerals of the drive unit 82.

The drive unit has an electric motor 86, which is arranged on a stationary first cross-beam 84 and which is in rotary drive connection with a rotatably drivable spindle nut, which is arranged on a threaded spindle 88 which is movable in the axial direction. The electric motor 86 and thus the spindle nut facing away from the end of the threaded spindle 88 is non-slidably connected to a carriage 90 having a second cross-beam 92, with their ends slide elements 94, 96 are connected, each in the C-profiles of the longitudinal bars 80, 80th 'trapped and guided translationally movable. On the cross-beam 92 are pivotable about a pivot axis defined by the same longitudinal beams 98, 100 stored.

To adjust the upper body support member 8 relative to the central support member 6, the electric motor 86 drives the spindle nut in such a way that the Carriage 90 translationally moved toward the first cross-beam 84. At the first cross-beam 84, a first raising element 102 is arranged, which cooperates for pivoting the upper body support member 8 with a pivotally fixed to the longitudinal spar 98 second Aufstellelement 104. The basic principle according to which the upper body support member 8 simultaneously performs a translational and a pivotal movement is thus the same as in the first embodiment.

The same applies to the other longitudinal spar 100 of the upper body support member. 8

From the Figures 14 and 15 it can be seen that the stroke of the translational movement of the upper body support member 8 during adjustment is greater than in the first embodiment. This reflects the fact that a boxspring mattress requires a larger stroke to avoid compression.

Also in the second embodiment, a compression of the mattress is avoided both in the region of the upper body support member 8 and in the region of the leg support member 12.

FIG. 15 shows the support device 2 in the end position of the adjusting movement.

To explain an embodiment of a support device according to the invention is hereinafter referred to the FIG. 16 to 20 Referenced.

The FIG. 16A to 16C show an embodiment a support device 202 according to the invention in a perspective view and different kinematic phases. The support device 202 has a base body 204, which is designed like a frame in this embodiment and two transversely to the longitudinal direction of the support means 202 mutually spaced longitudinal beams 206, 208, which are connected to each other at the ends of the support means transverse arms 210, 212 (see, in particular FIG. 16C ).

The support device 202 further includes a support assembly 214, which is also frame-like and has two transversely to the longitudinal direction of the support assembly 214 spaced longitudinal beams 216, 218, which are connected to each other at the ends of the support assembly 214 via transverse bars 220, 222 (see FIG. 16C and FIG. 18A ).

In the illustrated embodiment, the support assembly 214 forms a substantially horizontal support surface which is adjustable in height relative to the body 204. If required or desired in accordance with the respective requirements, the support means 214 may in turn comprise support members which are adjustable relative to one another, for example an upper body support member, a middle support member and a leg support member and optionally further support members, as is well known, for example, from slatted frames.

FIG. 16A shows the support means in an initial position of the adjustment, in which the support means 214 is located in a lowered position. In contrast, shows FIG. 16C an adjustment position in which the support assembly 214 is adjusted relative to the base body 204 maximum in height. FIG. 16B shows a lying between the lowered and the maximum raised position adjustment of the support assembly 214th

The support device according to the invention has electromotive adjusting means for adjusting the support assembly 214 in its height relative to the base body 204. According to the invention, the adjusting means comprise at least one lifting scissors-type, bowdenzugbetätigbare lifting arrangement which acts between the base body 204 and the support assembly 214.

In the illustrated embodiment, four lifting assemblies 224, 226, 228 and 230 are provided. As in particular from FIG. 16C it can be seen, attack the lifting assemblies 224 to 230 respectively in the region of the corners of a support surface of the support assembly 214 defining rectangle on the support assembly 214, wherein the lifting assemblies 226 and 230 on the longitudinal spar 216 and the lifting assemblies 226, 228 on the longitudinal spar 218 attack.

By synchronous actuation of the lifting arrangements 224 to 230, the support arrangement 214 is adjustable in height relative to the base body 204, ie raisable or lowerable.

In the following, only the lifting arrangement 224 will be explained in more detail. The lifting arrangements 226 to 230 are constructed accordingly and therefore will not be closer here explained.

The FIG. 17A to 17D show the lifting assembly 224 in different kinematic phases of the adjusting movement, wherein FIG. 17A corresponds to an unadjusted initial position in which the support assembly 214 is lowered, while 17 D represents an end position of the adjusting movement, in which the support assembly 214 is raised relative to the main body 204 maximum. The FIG. 17B and 17C show adjustment positions between the initial position according to FIG. 17A and the final position according to FIG. 17D lie.

In FIG. 18 To illustrate the principle of operation of the invention, only the support assembly 214 is shown in combination with the lifting assemblies 224, 230, the remaining components of the support assembly 202 being omitted for purposes of illustration. FIG. 18A shows the starting position of the adjusting movement, while FIG. 18C the end position of the adjustment movement and FIG. 18B show an intermediate adjustment position.

Based on FIG. 19 and 20 The structure of the lifting arrangement 224 will be explained in more detail below.

According to the invention the lifting arrangement 224 is bowdenzugbetätigbar and shaped hubscherenartig. The lifting arrangement 224 has a deployment lever 232 which can be erected under the traction of a Bowden cable, such that the support arrangement 214 is raised when the deployment lever 232 is set up. The ends of the raising lever 232 are pivotable about mutually parallel pivot axes 234, 236 on the one hand on the base body 204, namely on the longitudinal spar 206, and on the other hand mounted on the support assembly 214. The pivot axis 236 is defined by a first pivot bearing 238 formed on a first bearing element 240.

The lifting arrangement 224 has a lug 242, the ends of which are mounted about mutually parallel pivot axes 244, 246, on the one hand, on a second pivot bearing 248, which is formed on a second bearing element 250, and on the other hand on the setting lever 232 away from the ends thereof (cf. FIG. 19 ). The set-up lever 232 forms together with the tab 242 a lifting arrangement which acts on the principle of a scissor lift.

In the illustrated embodiment, the longitudinal spar 216 is formed by a C-profile. Further, in the illustrated embodiment, the second bearing member 250 fixed in the C-profile fixed. Furthermore, in the second embodiment, the first bearing element 240 is trapped in the C-profile and mounted along a linear axis in the direction of a double arrow 252 on the longitudinal spar 216 and thus the base body 204.

Furthermore, a first Aufstellelemt 254 is provided, which is arranged in the translational movement path of the deployment lever 232. The positioning element 254 is caught in the C-profile of the longitudinal beam 216 and movable in the direction of the double arrow 252 relative to the translationally movable first bearing element 240 and the stationary second bearing element 215.

To operate the lifting assembly 224 is a Bowden cable 256 (cf. FIG. 17B ), which in a known manner has a claimable on compression casing 258 in which a pull cable (soul) 260 is added. One end of the casing 258 is fixed to the first bearing element 240 (see FIG. FIG. 17B ), while the other end of the casing on a housing of an electromotive drive device 262 (see. FIG. 16C ). The electromotive drive device 262, for example, and in particular be formed as in the FIG. 8th ff. the EP 2 792 277 A1 represented, the contents of which are incorporated by reference herein in its entirety in the present application. The end of the pull cable 260 facing away from the drive device 262 is fixed to the first set-up element 254.

For cooperation with the first raising element 254, the raising lever 232 has a second set-up element 264 connected in a rotationally fixed manner to the same, which in this embodiment is designed as a cam. With regard to the design and function of the erection elements 254, 264, reference is made to the illustration examples according to FIGS FIG. 1 to 15 directed. The features and functions disclosed therein are correspondingly transferable to the exemplary embodiment according to the invention in the exemplary embodiment according to the invention.

Is by the electric motor drive unit 262 starting from the initial position of the adjustment (see. FIG. 16A ) a tensile force on the pull cable 260 of the Bowden cable 256 exercised, the distance between the first set-up element 254 and the first bearing element 240 is reduced, wherein the set-up lever runs onto the first set-up element 254 and hereby arises, as for example FIG. 19 seen. Here, the first Lagherelement 240 moves in Fig. 19 to the left in the direction of the stationary second bearing element 250, while the first positioning element 250 in Fig. 19 moved to the right until the example in FIG. 16C shown end position of the adjustment is reached.

To raise the support assembly evenly, the lifting assemblies 224-230-operating Bowden cables are operated synchronously. As a result, twists of the support assembly 214 are avoided in a height adjustment. In order to achieve a synchronous operation of the four Bowden cables, for example, an electric motor drive unit according to FIG. 9 the EP 2 792 277 A1 used in which two electric motors each drive a spindle nut and each spindle nut actuated two Bowden cables. By synchronous control of the two electric motors thus four Bowden cables can be operated synchronously. However, for example, an electromotive drive device can be used, as in FIG. 16 the EP 2 792 277 is shown and in which a single electric motor drives two winding drums and each winding drum actuates two Bowden cables. According to the invention, however, any other suitable drive means can also be used For example, each lift assembly 224-230 may be associated with a separate drive means, these drive means being actuated synchronously to lift the support assembly 214.

The provision of the support assembly 214 of the in FIG. 16C shown raised position in the in FIG. 16A shown lowered starting position is carried out with the drive device under the weight of the support means 214 and optionally a person resting on the support assembly 214 person.

In the various figures of the drawing and the various embodiments, the same or corresponding components are provided with the same reference numerals. As far as components are omitted in the figures of the drawing for reasons of illustration or illustration, the components in question in each case in the other figures are complementary to complement. It is obvious to the person skilled in the art that the features of the individual illustartion and exemplary embodiments are also interchangeable under the illustrations and exemplary embodiments, that is to say the features disclosed with reference to an exemplary embodiment or illustration example are identical or correspond to the other embodiments or illustration examples can be provided. It will also be apparent to those skilled in the art that the features disclosed with respect to the individual embodiments and illustrative examples, the invention for each continue to educate themselves, so regardless of the other features of the respective embodiment or illustration example.

Claims (3)

Electromotive adjustable support device for upholstery on sitting and / or lying furniture, in particular a mattress of a bed,
with a base body having at least two relatively adjustable support members on which the padding is supported when using the support means, and
with at least one electromotive furniture drive for adjusting the support members relative to each other, with - A first adjusting unit, which has a stationary first base body and a first movable relative to the first adjusting member, wherein the first adjusting member is in driving connection with an electric motor, and - A second adjustment unit, which is a fixed second base body and a relative to the same second movable adjusting member, marked by
at least one Bowden cable (60) with a traction cable (62) received in a pressure-resistant casing (64),
wherein one end of the traction cable (62) on the first base body (34) and the said end associated with the end of the sheath of the Bowden cable on the first adjusting member (40), while the other end of the traction cable (62) on the second adjusting member and the This end associated with the end of the sheath of the Bowden cable is fixed to the second body. Support device according to claim 1, characterized in that the first Verstellogan (40) and / or the second adjusting member is mounted translationally movable or are. Support device according to claim 1 or 2, characterized in that the support means is formed as a slatted frame.

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