EP3009052B1 - Retrofit kit for retrofitting a supporting device - Google Patents

Description

The invention relates to a retrofit kit for retrofitting a support device for supporting the upholstery of seating and / or reclining furniture, in particular a mattress of a bed, with an electromotive adjusting device.

Corresponding electromotive adjustment devices are generally known.

For the adjustment of slatted frames, for example, so-called double drives are known which have a housing designed as a separate component that can be connected to the slatted frame, in which two adjustment units are accommodated, one of which is used, for example, to adjust a back support part and the other to adjust a leg support part of the slatted frame . In the known double drives, the adjustment units are designed as spindle drives, the drive-related coupling to a supporting part to be adjusted via a linkage lever which is non-rotatably connected to a pivot shaft, which is assigned to the support part to be adjusted. To adjust the support part, the spindle nut of the spindle drive presses against the articulation lever so that the pivot shaft and thus the support part pivot. Such double drives are for example by EP 0372032 A1 and DE 3842078 A1 known.

By DE 10017989 C2 and DE 10017979 C2 each a furniture drive designed as a double drive is known, in which each adjustment unit has an electric motor-driven winding device for a rope, band or chain-shaped traction device, which is connected in the manner of a block and tackle with a pivot lever which is rotatably connected to a pivot shaft, which in turn is in operative connection with a supporting part to be adjusted.

Furniture drives working according to a similar operating principle are also through DE 3409223 C2 , DE 19843259 C1 and EP 1020171 A1 known.

Double drives that work according to different operating principles are also through DE 197292812 A1 , DE 29811566 U1 and DE 29714746 U1 known.

By DE 3900384 an adjustable slatted frame is known in which a head or leg support part of the slatted frame is adjusted by means of a pneumatic cylinder.

By DE 29602947 U1 a gas spring adjustment fitting for slatted frames is known, a cable being provided to operate the gas spring.

By DE 3103922 A1 a slatted frame is known in which the adjustment of, for example, an upper body support part via a wiper motor and a Scissor lift takes place.

By EP 1294255 B1 a double drive is known in which the power is transmitted from a linearly movable drive element to a pivot lever, which is operatively connected to a pivot shaft that is operatively connected to a supporting part to be adjusted, via a pulley block. Similar furniture drives are also through FR 2727296 , DE 3409223 C2 , DE 19843259 C1 , GB 2334435 and US 5528948 known.

In addition, slatted frames are known in which the adjusting device for adjusting a support part is partially or completely integrated into a base body of the slatted frame. In this sense shows and describes DE 19962541 C2 (corresponding EP 1239755 B1 , JP 2001-546280 and US 6754922 ) a support device which can be adjusted by an electric motor and which has a first support part which is parallel to one another and which is formed by a stationary central support part in the support device known from the publication. The known support device also has further support parts which can be adjusted relative to the first support part by drive means. In the case of the support device known from the publication, a first longitudinal spar of the first support part for receiving the drive means is designed as a hollow profile, the entire drive including a drive motor being received in the hollow longitudinal spar. Because of this, the drive motor does not protrude from the first longitudinal spar in the vertical direction, so that the support device known from the publication has an extremely low overall height. A similar support device is also through DE 10046751 (corresponding EP 1239754 B1 , JP 2001-547994 and US 6961971 ) known.

By WO 96/29970 a motor-adjustable support device for a mattress of a bed is known, which has several support parts which follow one another in the longitudinal direction of the support device and which can be pivoted relative to a first support part by drive means. The support parts are mounted on an outer frame, the profile height of which is significantly greater than the profile height of the support parts. In the support device known from the publication, parts of the outer frame are designed as a hollow profile, parts of the drive means for adjusting the support parts relative to one another being received in the hollow profile. The drive motor is arranged on an inside of a part of the outer frame.

By DE 69507158 T2 (corresponding EP 0788325 B1 ) a motor-adjustable support device for a mattress of a bed is known, which has a first support part having a longitudinal spar and at least one second support part which can be pivoted relative to the first support part by drive means. In the known support device, the drive motor is arranged outside the base of the support device and is attached to a frame-like extension of the first support part.

By EP 1633219 B1 a slatted frame is known in which parts of the adjusting device are accommodated in a hollow longitudinal spar, while the drive motor is arranged outside the longitudinal spar and is in drive connection through a recess with the parts of the adjusting device accommodated in the longitudinal spar.

By WO 2008/113401 a furniture drive provided for adjusting a drawer relative to a body of a cupboard is known in which the drawer is adjusted via a flexible toothed rack which is in engagement with a toothed wheel.

By DE 10 2008 028586 A1 a slatted frame with an integrated adjustment device is known, in which the power transmission from drive motors of the adjustment device to the support parts to be adjusted takes place via pull cables which are guided over deflections.

By EP 2 878 230 A1 an electromotive adjustable support device for upholstery of seating and / or reclining furniture is known, which has a raising lever mechanism that can be actuated by means of a Bowden cable.

EP 2 792 277 A1 shows and describes an electromotive furniture drive, in which the adjustment of a part of a piece of furniture that is to be adjusted takes place via Bowden cables.

DE 10 2006 017 972 A1 reveals a fold-down bed with Traction adjustment.

By FR 2 688 667 A1 an adjustable slatted frame is known.

Slatted frames adjustable by electric motor generally have an adjustment fitting which is used to transmit the adjustment force from an electric motor or several electric motors to the mutually adjustable support parts of the slatted frame. To assemble a slatted frame that can be adjusted by an electric motor, for example, a double drive is mounted on the slatted frame in such a way that its adjustment elements are effectively connected to the adjustable fitting of the slatted frame.

The invention is based on the object of specifying an electromotive adjustment device for a support device for supporting the upholstery of seating and / or reclining furniture, in particular a mattress of a bed, which is simple in construction and in use.

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

The invention provides a retrofit kit with which support devices that cannot or cannot be adjusted by an electric motor can be retrofitted with an electric motor adjustment device, so that they maintain the functionality of an electric motor adjustable support device. For this purpose, the invention provides an auxiliary frame that can be inserted between the support device and the upholstery Base body with at least two protective parts which can be pivoted relative to one another under the pulling action of a pull cable of a Bowden cable which is connected to an electromotive drive unit.

To retrofit, for example, a slatted frame that is not adjustable or not adjustable by an electric motor, the subframe is inserted between the slatted frame and the mattress, so that the mattress extends in the areas in which the subframe extends along the extension of the slatted frame, on the subframe and in the other areas supported on the slatted frame. By actuating the electromotive drive unit, the frame parts of the subframe are pivoted to one another. If the subframe is inserted, for example, in an area in which the upper body of a person resting on the mattress is located, the mattress in the area of the upper body is raised when the frame parts of the subframe are adjusted relative to one another, so that the same functionality results as with a slatted frame, the upper body support part of which is adjustable by an electric motor.

The invention provides that an adjusting element for pivoting the frame parts of the subframe relative to one another is a pivot lever that can be pivoted under the pulling action of the pulling cable of the Bowden cable, one end of the pivot lever being slidably supported on a support and the other end of the pivot lever being supported on a two-armed lever is whose first lever arm is articulated to one of the frame parts and whose second lever arm is guided on the other frame part by means of a linear guide.

The invention thus enables slatted frames or other support devices to be retrofitted with the functionality of an electromotive adjusting device in a particularly simple and inexpensive manner.

Since according to the invention the adjustment of the frame parts relative to one another takes place via at least one Bowden cable, the subframe of the retrofit kit according to the invention has only a small overall height, so that the subframe only slightly increases the overall height of the slatted frame including the mattress.

In order to maintain the spring comfort of a slatted frame even with the subframe inserted, the frame parts of the subframe can be provided with resilient slats or other spring elements on the side facing the upholstery, for example the mattress, when the retrofit kit is used.

The retrofit kit according to the invention is particularly suitable for use in the hospital bed or care sector, because the components of the subframe are insensitive to liquids and the electromotive drive unit of the retrofit kit, which is sensitive to liquids, can be arranged away from the actual subframe with the appropriate length of the Bowden cable or the Bowden cables .

In addition, however, the retrofit kit according to the invention is also suitable for other applications. For example, the retrofit kit can be used in hotels. If the hotel beds in a hotel are not equipped with an electric motor-driven adjustment device for reasons of cost, a retrofit kit according to the invention can be used if a hotel guest wants a corresponding functionality.

According to the invention, the subframe can consist of more than two frame parts, whereby frame parts which are adjacent to one another can be connected to one another in an articulated manner and pivotable relative to one another about a horizontal pivot axis. In terms of a simple structure, it is advantageous if the base body consists of a first frame part and a second frame part that is pivotable relative to the first frame part, as is provided by an advantageous further development of the invention. In this embodiment, the frame consists of only two frame parts which can be pivoted relative to one another, but with which, for example, the functionality of an electromotive adjustable upper body support part of a slatted frame can be reproduced.

Another advantageous development of the invention provides that the length of the subframe in the longitudinal direction of the support device is significantly less than the length of the support device. For example and in particular, the subframe can only extend over half or two thirds of the length of the support device extend.

According to the invention, the linear guide can be formed on a separate component which is connected to the associated frame part. In order to further simplify the structure, an advantageous development of the invention provides that the linear guide has a profile rail that forms a longitudinal spar of one of the frame parts.

A further development of the aforementioned embodiment provides that the profile rail is a C-profile rail.

A support device according to the invention for supporting the upholstery of a piece of furniture to sit and / or lie on, in particular a mattress of a bed, is specified in claim 6. The support device according to the invention is characterized in that it has a retrofit kit according to one of Claims 1 to 5, the auxiliary frame of which is inserted between the support device and the upholstery. In other words, the support device according to the invention consists of a support device (not adjustable or not adjustable by an electric motor) together with upholstery and a retrofit kit according to the invention. In principle, it is also possible according to the invention to use the retrofit kit in combination with a support device that can be adjusted by an electric motor, for example a slatted frame.

The invention is explained in more detail below using an exemplary embodiment with reference to the accompanying drawing.

Fig. 1:

in einer Perspektivansicht ein Ausführungsbeispiel einer elektromotorisch verstellbaren Stützeinrichtung in Form eines Lattenrostes in einer unverstellten Position,

Fig. 2:

in gleicher Darstellung wie Fig. 1 den Lattenrost gemäß Fig. 1, wobei der Übersichtlichkeit halber Stützteile des Lattenrostes weggelassen sind,

Fig. 3

in gleicher Darstellung wie Fig. 1 einen Montagerahmen der Stützeinrichtung gemäß Fig. 1,

Fig. 4

in gleicher Darstellung wie Fig. 3 den Montagerahmen gemäß Fig. 3 zusammen mit einen daran schwenkbar gelagerten Stützteil,

Fig. 5

in einer Perspektivdarstellung eine Antriebseinheit des Lattenrostes gemäß Fig. 1, wobei das Gehäuse der Antriebseinheit aus Darstellungsgründen offen gezeigt und der Übersichtlichkeit halber Bestandteile der Antriebseinheit weggelassen sind,

Fig. 6

in gleicher Darstellung wie Fig. 5, jedoch in vergrößertem Maßstab die Antriebseinheit gemäß Fig. 5,

Fig. 7A- Fig. 7E

jeweils in einer Perspektivansicht Einzelheiten eines Verstellorganes des Lattenrostes gemäß Fig. 1 in verschiedenen Verstellpositionen bzw. kinematischen Phasen,

Fig. 8

in einer Perspektivansicht und in gegenüber Fig. 7 vergrößertem Maßstab ein Anschlagselement des Lattenrostes gemäß Fig. 1,

Fig. 9

in gleicher Darstellung wie Fig. 8 das Anschlagselement gemäß Fig. 8 in Kombination mit einem Aufstellhebel,

Fig. 10

in gleicher Darstellung wie Fig. 9 das Anschlagselement und den Aufstellhebel gemäß Fig. 9 in einer anderen kinematischen Phase,

Fig. 11A-Fig. 11E

jeweils in einer anderen Perspektivansicht den Montagerahmen gemäß Fig. 3 in unterschiedlichen Verstellpositionen bzw. kinematischen Phasen,

Fig. 12A-

in gleicher Darstellung wie Fig. 11,

Fig. 12E

jedoch in geringfügig verkleinertem Maßstab den Montagerahmen gemäß Fig. 3 in unterschiedlichen Verstellpositionen bzw. kinematischen Phasen in Kombination mit einem zu verstellenden Stützteil,

Fig. 13

in einer Perspektivdarstellung den ersten Aufstellhebel für sich genommen und

Fig. 14

in einer Perspektivdarstellung das Anschlagselement für sich genommen,

Fig. 15

in einer Perspektivansicht ein Ausführungsbeispiel eines Hilfsrahmens eines erfindungsgemäßen Nachrüstsatzes in einer unverstellten Ausgangslage,

Fig. 16

in gleicher Darstellung wie FIG. 15 einen Hilfsrahmen gemäß FIG. 15 in einer Endlage der Verstellbewegung,

Fig. 17

in einer Perspektivansicht eine Einzelheit aus FIG. 16,

Fig. 18

in gleicher Darstellung wie FIG. 17 eine Einzelheit aus FIG. 17 im Bereich eines Schwenkhebels,

Fig. 19

die Einzelheit gemäß FIG. 18, wobei aus Gründen der Veranschaulichung eine Profilschiene einer Linearführung weggelassen ist,

Fig. 20

die Einzelheit gemäß FIG. 19, wobei ein Schlitten der Linearführung weggelassen ist,

Fig. 21

in gleicher Darstellung wie FIG. 15 einen Lattenrost in Kombination mit einem erfindungsgemäßen Hilfsrahmen, wobei der Hilfsrahmen in der unverstellten Ausgangslage dargestellt ist und

Fig. 22

die Kombination aus Hilfsrahmen und Lattenrost gemäß FIG. 21, wobei der Hilfsrahmen der Endlage der Verstellbewegung dargestellt ist und

Fig. 23

die Kombination aus Hilfsrahmen und Lattenrost gemäß FIG. 21 aus einer anderen Perspektive.

It shows:

Fig. 1:

in a perspective view an embodiment of an electromotive adjustable support device in the form of a slatted frame in an undisplaced position,

Fig. 2:

in the same representation as Fig. 1 the slatted frame according to Fig. 1 , with support parts of the slatted frame omitted for the sake of clarity,

Fig. 3

in the same representation as Fig. 1 a mounting frame of the support device according to Fig. 1 ,

Fig. 4

in the same representation as Fig. 3 the mounting frame according to Fig. 3 together with a supporting part pivoted on it,

Fig. 5

in a perspective view of a drive unit of the slatted frame according to Fig. 1 , wherein the housing of the drive unit is shown open for reasons of illustration and components of the drive unit are omitted for the sake of clarity,

Fig. 6

in the same representation as Fig. 5 , but on an enlarged scale the drive unit according to Fig. 5 ,

Figures 7A-7E

each in a perspective view details of an adjusting member of the slatted frame according to Fig. 1 in different adjustment positions or kinematic phases,

Fig. 8

in a perspective view and opposite Fig. 7 enlarged scale according to a stop element of the slatted frame Fig. 1 ,

Fig. 9

in the same representation as Fig. 8 the stop element according to Fig. 8 in combination with an opening lever,

Fig. 10

in the same representation as Fig. 9 the stop element and the deployment lever according to Fig. 9 in another kinematic phase,

Figures 11A-11. 11E

each in a different perspective view according to the mounting frame Fig. 3 in different adjustment positions or kinematic phases,

Fig. 12A-

in the same representation as Fig. 11 ,

Figure 12E

however on a slightly reduced scale according to the mounting frame Fig. 3 in different adjustment positions or kinematic phases in combination with an adjustable support part,

Fig. 13

in a perspective view the first deployment lever and

Fig. 14

the stop element in a perspective view by itself,

Fig. 15

in a perspective view an embodiment of a subframe of a retrofit kit according to the invention in an unadjusted starting position,

Fig. 16

in the same representation as FIG. 15th a subframe according to FIG. 15th in an end position of the adjustment movement,

Fig. 17

a detail in a perspective view FIG. 16 ,

Fig. 18

in the same representation as FIG. 17th a detail FIG. 17th in the area of a swivel lever,

Fig. 19

the particular according to FIG. 18th , whereby a profile rail of a linear guide has been omitted for reasons of illustration,

Fig. 20

the particular according to FIG. 19th with one slide of the linear guide omitted,

Fig. 21

in the same representation as FIG. 15th a slatted frame in combination with a subframe according to the invention, the subframe being shown in the unadjusted starting position and

Fig. 22

the combination of subframe and slatted frame according to FIG. 21st , wherein the subframe of the end position of the adjustment movement is shown and

Fig. 23

the combination of subframe and slatted frame according to FIG. 21st from a different perspective.

Based on Figures 1 to 14 the basic mode of operation of a support device adjustable by an electric motor, in which the adjustment is effected via Bowden cables, is explained below.

In Fig. 1 is a perspective view of an embodiment of an electromotive adjustable support device for upholstery of seating and / or reclining furniture, in particular a mattress of a bed, is shown, wherein the support device is designed as a slatted frame 2 in this embodiment. For the sake of clarity, resilient slats of the slatted frame 2, for example slats, are not shown in the drawing. The design and attachment of such resilient slats is, however, generally known to the person skilled in the art and is therefore not explained in more detail.

The slatted frame 2 has a base body 4 on which support parts that can be adjusted relative to one another are arranged. In the exemplary embodiment shown, the support parts have a stationary central support part 6, with one end of which an upper body support part 8 is connected in an articulated manner and pivotable about a horizontal pivot axis. The end of the middle support part 6 facing away from the upper body support part 8 is articulated and pivotable about a horizontal pivot axis a leg support part 10 is connected, with its end facing away from the middle support part 6, a calf support part 12 is connected in an articulated manner and pivotable about a horizontal pivot axis.

In the embodiment shown, the base body of the slatted frame 4 has an outer frame 14.

The support parts 6 to 12 are connected to the outer frame 14 via a mounting frame 16, on which a drive unit 18 as well as adjusting elements acted upon or actable by the drive unit with an adjusting force are arranged for applying an adjusting force to a support part to be adjusted with an adjusting force in the mounting position of the mounting frame 16. The Mounting frame 16 is further below based on Figures 2 to 4 explained in more detail. The drive unit 18 is described below with reference to FIG Figures 5 and 6th explained in more detail. Adjusting members of the mounting frame 16 are formed in the illustrated embodiment by raising levers, which are further down based on the Figures 7 to 10 are explained in more detail.

Fig. 2 shows the outer frame 14 of the slatted frame 2 with the mounting frame 16 attached, with the support parts 6 to 12 in Fig. 2 are omitted for the sake of clarity. How out Fig. 2 As can be seen, the outer frame 14 has laterally spaced apart longitudinal bars 20, 22 which extend in the longitudinal direction of the slatted frame 2 and which are connected to one another in the region of their ends via transverse bars 24, 26 are. In the context of the invention, the longitudinal direction of the slatted frame 2 is defined as that direction along which the slatted frame 2 has the greater extent. Accordingly, the transverse direction of the slatted frame 2 is defined as the direction along which the slatted frame 2 has the smaller extent.

Fig. 3 shows the assembly frame 16 taken by itself, that is, independently of the slatted frame 2. The assembly frame 16 has longitudinal spars 28, 30 which are connected to one another in the region of their ends via transverse spars 32, 34. In the illustrated embodiment, the transverse spars 32, 34 are each formed by a profile rail which has the cross section of a horizontal C and in which the adjustment elements of the mounting frame 16 are arranged or guided, as will be described below with reference to Fig. 11 is explained in more detail.

In the illustrated embodiment, the mounting frame 16 is designed to be adjustable in width for adaptation to slatted frames of different widths. To realize the width adjustability, telescopic elements 36, 38 and 40, 42 are arranged on the longitudinal spars 28, 30 of the mounting frame 16, each extending in the direction of the other longitudinal spar 30, 28, which in the illustrated embodiment are designed as tubular parts and are located in the right Angle to the longitudinal spars 28 and 30 extend. In the illustrated embodiment, the ends of the cross member 32 are guided in a telescopic manner in the telescopic elements 36, 38. Corresponding to this, in Telescopic elements 40, 42 guided the ends of the cross member 34 telescoping.

In the illustrated embodiment, the drive unit 18 is arranged on the transverse spar 32 and is displaceable in the spar direction of the transverse spar 32 and can be locked in the respective position.

In the illustrated embodiment, Bowden cables 44, 44 'and 46, 46' are provided for power transmission from electric motors of the drive unit 18 to the supporting parts 6 to 12 to be adjusted, each of which is assigned to an adjusting member. The interaction of the Bowden cables 44, 44 ', 46, 46' with the drive unit 18 and the adjusting elements will be described below with reference to FIG Figures 5 to 7 explained in more detail.

To mount the mounting frame 18 on the outer frame 14 of the slatted frame 2, the width of the mounting frame 16 (cf. Fig. 3 ) according to the width of the outer frame 14 (cf. Fig. 2 ) of the slatted frame 2 is set. In detail, the longitudinal spars 28, 30 of the mounting frame 16 are pulled apart so far that the distance between the outer surfaces of the longitudinal spars 28, 30 of the mounting frame corresponds to the clear width between the inner surfaces of the longitudinal spars 20, 22 of the outer frame 14. Here, the transverse bars 32, 34 of the mounting frame 16 slide in the telescopic elements 36, 38 and 40, 42, respectively. After the desired width has been set, the mounting frame 16 is inserted into the outer frame, as in FIG Fig. 2 shown. The mounting frame 16 can then be attached to the outer frame 14, for example by screwing.

After the mounting frame 16 has been mounted on the outer frame 14, the support parts 6 to 14 of the slatted frame 2 can be connected to the mounting frame 16.

Fig. 4 shows an example of a connection between the upper body support part 8 and the assembly frame 16. The connection between the leg support part 10 and the calf support part 12 connected to it takes place in a corresponding manner and is therefore not explained in more detail here. For connection to the upper body support part 8, a bearing device for the pivotable mounting of at least one pivotable support part is formed on the mounting frame, the bearing device in the illustrated embodiment having bearing bushes which are laterally spaced from one another and into which the upper body support part 8 can be inserted with laterally spaced bearing journals. Fig. 4 shows the upper body support part 8 pivotably mounted on the mounting frame 16 in this way.

Fig. 5 shows the drive unit 18 in a perspective view, the housing 48 of the drive unit 18 being shown open for reasons of illustration. The drive unit 18 has two drive trains 50, 52, each of which is assigned an electric motor 54 or 56 and the output member of which is formed by spindle nuts 58, 60. The sheaths of the Bowden cables 44, 44 'and 46, 46' are fixed on the housing 48 of the drive unit 18, while the pull cables of the Bowden cables are attached in pairs to the spindle nuts 58, 60 are set. In the illustrated embodiment, the pull cables of the Bowden cables 44, 44 ′ are fixed on the spindle nut 58, while the pull cables of the Bowden cables 46, 46 ′ are fixed on the spindle nut 60. The electric motors 54, 56 can be controlled independently of one another. Control means for controlling the electric motors 54, 56 are not shown in the drawing for reasons of clarity. The same applies to voltage supply means, which are also not shown for reasons of clarity.

Fig. 6 shows the drive unit 18 according to FIG Fig. 5 , the Bowden cables 44, 44 and 46, 46 'being omitted for the sake of clarity. The drive train 50 and its mode of operation are explained in more detail below. The drive train 52 is constructed accordingly and is therefore not explained in more detail.

The electric motor 54 of the drive train 50 has an output shaft 62 designed as a worm of a worm drive, which is in engagement with a worm wheel 64 which is non-rotatably connected to a threaded spindle 66 rotatably mounted in the housing 48. In the illustrated embodiment, the worm 62 and the worm wheel 64 are part of a gear arrangement which, as from Fig. 6 can be seen, also has further transmission elements, which, however, are of no further interest in the present context and are therefore not explained in more detail.

On the threaded spindle 66 is rotatable and in The spindle nut 58, on which the Bowden cables 44, 44 '(in Fig. 6 not shown) are set. To adjust a support part, the electric motor 54 drives the threaded spindle 66 in such a way that the spindle nut 58 is in Fig. 6 moved to the left, so that the spindle nut 58 pulls on the pull cables of the Bowden cables 44, 44 '. The pulling action on the pulling cables of the Bowden cables 44, 44 'is shown below with reference to FIG Fig. 7 In the manner explained in more detail, this is converted into a setting-up movement of a setting-up lever which forms an adjusting element of the mounting frame 16. A return to the unadjusted position of the slatted frame (cf. Fig. 1 ) takes place when the electric motor 54 is switched on, but under the weight of the support part, possibly also under the load of a person resting on the slatted frame.

Figure 7A shows a raising lever arrangement 68, which has a first raising lever 70, which forms the adjusting member of the furniture drive arranged on the assembly frame 16 and can be raised under the pulling action of the pulling cable of a Bowden cable, in the illustrated embodiment under the pulling action of the pulling cable of the Bowden cable 44 '. The first raising lever 70 can be set up pivotably about a first pivot axis 72, the end of the first raising lever facing away from the first pivot axis 72 being articulated and pivotable about a second pivot axis 74 parallel to the first pivot axis 72 with a second raising lever 76 which is connected to the pull rope of Bowden cable 44 'is functionally connected in such a way that the raising levers 70, 76 stand up under the pulling action of the pulling cable of the Bowden cable. In the illustrated embodiment, the pull rope of the in Fig. 7 Bowden cable, not shown, is fixed to the end of the second raising lever 76 facing away from the first raising lever 70.

In the illustrated embodiment, a stop 78 is assigned to the first raising lever 70, which is formed on a stop element 80 which is connected to the longitudinal spar 30 of the mounting frame 16 in a non-shiftable manner (cf. Figure 11A ).

The operation of the raising lever arrangement 68 is explained in more detail below, with reference to the Figures 7A through 7E and on the Figures 11A to 11E Is referred to. The Figures 7A through 7E show only the deployment lever arrangement 68 in combination with the stop element 80, while the Figures 11A through 11E additionally show the mounting frame 16. Under the Figures 7A through 7E and 11A to 11E Figures with the same letter designation illustrate the same kinematic phase.

At the beginning of the adjustment movement, i.e. when the slatted frame 2 is not adjusted, the pivot axes 72, 74 and a force application point of the Bowden cable 44 'on the second raising lever 76 lie in one plane, so that the raising lever arrangement is translatory under the pulling action of the pulling cable of the Bowden cable 74 Figure 7A or 11A shifts to the right. Out Figure 11A is clear, that the C-shaped profile of the longitudinal spar 30 of the mounting frame 16 forms a guide for the translational displacement of the raising lever arrangement 68. Due to the fact that in the first kinematic phase the first pivot axis 72 and the second pivot axis 74 as well as the force application point of the pulling cable of the Bowden cable 44 on the second deployment lever 76 lie in one plane, the deployment lever arrangement 68 is exclusively translational in the first kinematic phase in Figure 7A or. Figure 11A moved to the right.

At the end of the first kinematic phase, the first erecting lever 70 with laterally, that is to say in the axial direction of the first pivot axis 72, thickened portions 82, 82 ′ run onto a lifting guide 84 formed on the stop element 80. In the embodiment shown, the lifting guide 84 is arcuate in cross section. However, it can also be designed as an inclined plane.

Figure 7B illustrates how the end of the first raising lever 70 facing away from the second raising lever 76 runs onto the lifting guide 84 and is thereby raised, which subsequently leads to raising of the raising levers 70, 76 under the pulling action of the cable bowden cable 44 '. Figure 11B illustrates the resulting setup of the deployment levers 70, 76. As from Figure 7B and from Figure 11B can be seen, the raising lever arrangement 68 performs both a translational phase during the second kinematic phase Movement and a pitching movement.

Figure 7C and Figure 11C illustrate the end of the second kinematic phase at which the free end of the first setting lever 70 facing away from the second setting lever 76 runs onto the stop 78 formed on the stop element 80, so that further translational movement of the setting lever arrangement 68 is prevented.

During a subsequent third kinematic phase, the first erecting lever 70 only executes an erecting movement by pivoting about the first pivot axis 72.

The Figures 7D and 11D represent the deployment lever arrangement 68 in the third kinematic phase.

Figure 7E and Figure 11E show the raising lever arrangement 68 at the end of the third kinematic phase, in which the raising lever 70, 76 of the raising lever arrangement 68 are maximally positioned. In the Figure 7E and Figure 11E The illustrated position of the raising lever arrangement 68 corresponds to a maximum adjustment of the upper body support part 8 relative to the middle support part 6.

Fig. 8 shows a perspective view of the stop element 80 taken by itself, the stop 78 being particularly easy to see.

Fig. 9 illustrates that the free end of the first setting lever 70 runs up against the stop 78 at the end of the second kinematic phase.

Fig. 10 shows the first deployment lever 70 during the third kinematic phase, in which it only executes a pivoting movement about the first pivot axis 72 and is in contact with the stop 78.

Fig. 12 illustrates the adjustment of the upper body support part 8 by means of the adjustment lever arrangement 68. In the illustrated embodiment, the erecting lever arrangement 68 loosely acts on a longitudinal spar 86 of the upper body support part 8 by the longitudinal spar 86 resting loosely on the erecting lever arrangement 68. Laterally spaced from the longitudinal spar 86, the upper body support part 8 has a further longitudinal spar 88, to which a corresponding raising lever arrangement is assigned, which, however, for reasons of clarity in FIG Fig. 12 is not shown. The raising lever arrangement assigned to the longitudinal spar 88 cooperates with the pulling cable of the Bowden cable 44, the mode of operation being as described for the raising lever arrangement 68 and therefore not explained in more detail here. Since the pull cables of the Bowden cables 44, 44 'are attached to the same spindle nut 58 (cf. Fig. 5 ) are set, the erecting lever arrangements assigned to the longitudinal spars 68, 88 stand up completely synchronously, so that twisting of the upper body support part 8 during the adjustment movement is reliably avoided.

Figure 12B and 12C illustrate the further adjustment movement of the upper body support part 8. Figure 12D shows the end position of the adjustment movement, that of a maximally adjusted position of the upper body support part 8 relative to the middle support part or the mounting frame 16 corresponds.

Based on Fig. 13 and 14th locking means associated with the first deployment lever 70 are explained in more detail below, wherein Fig. 13 the first deployment lever 70 and Fig. 14 shows the stop element 18 taken individually. The first deployment lever 70 is assigned locking means which are effective in a predetermined deployment position of the first deployment lever and lock the first deployment lever 70 against a translational movement, while at the same time allowing a deployment movement of the first deployment lever. In the illustrated embodiment, the locking means are effective when the first deployment lever 70, resting against the stop 78 and pivoting, reaches a predetermined deployment position. In the illustrated embodiment, the locking means have a (cf. Fig. 13 ) Bearing pin 90, which is formed on the end of the first setting lever 70 facing the first pivot axis 72. The bearing pin 90 is designed and set up in such a way that in the locking position it is rotatably or pivotably mounted in a bearing recess formed on the stop element 80 and is released from the bearing recess in an unlocking position.

How out Fig. 13 As can be seen, the bearing journal 90 has a bearing section 92 with a circular cross-section and a flat 94. As a result, the bearing section 92 is approximately semicircular in cross section in the illustrated embodiment. Out Fig. 13 is not visible and therefore it is explained here that the first raising lever 70 has a corresponding bearing pin on its side facing away from the bearing pin 90.

Fig. 14 3 shows a perspective view of the stop element 80. The stop element 80 has a groove 96 which at its end opens into a bearing surface section 98 which is circular in cross section and whose diameter is greater than the inside width of the groove 96.

The functioning of the locking means is as follows:
As above using Figure 7B described, during the adjustment movement that end of the first raising lever 70 facing away from the second raising lever 76 runs onto the lifting guide 84 and is thereby raised, which leads to raising the raising lever 70, 76. Here, the bearing pin 90 is guided in a translatory manner in the guide formed by the groove 96. The clear width of the groove 96 is dimensioned such that, taking into account the shape of the bearing pin 90 and the setting angle of the first setting lever 70, the bearing pin 90 is guided translationally in the guide formed by the groove 96 without jamming.

At the end of the second kinematic phase (cf. the description above with reference to FIG Figure 7C and Figure 11C ) the free end of the first raising lever 70 facing away from the second raising lever 76 runs onto the stop 78 formed on the stop element 80 so that a further translational movement of the raising lever arrangement 86 is prevented.

During the subsequent third kinematic phase, the first erecting lever 70 only executes an erecting movement by pivoting about the first pivot axis 72. Due to the shape of the bearing pin 90 and the bearing recess 98, the bearing pin 92 locks when the first opening lever 70 is set up further on the bearing recess 98 in such a way that it is secured against translational movement, and at the same time a further setting up movement of the first setting lever 70 is permitted.

The locking means ensure that the raising lever arrangement 68 is evenly lowered in the direction of the unadjusted position when it is reset from a maximally adjusted position. The resetting takes place in such a way that the first opening lever 70 pivots back in the direction of the unadjusted position. The locking means only allow a rotary or pivoting movement up to a certain set-up position of the first set-up lever 70. In a predetermined set-up position, the lock is canceled, so that the bearing pin 90 then moves translationally in the groove 96 in the direction away from the stop 78.

Without the locking means, there would be the risk that the first raising lever would immediately move in a translatory manner when it is reset and that this would then lead to a sudden lowering, which is undesirable.

Based on FIG. 15 to 23 an embodiment of a retrofit kit according to the invention of an electromotive adjusting device for a support device for supporting upholstery of a piece of furniture to sit and / or lie on, in particular a mattress of a bed, is explained in more detail below.

As an electric motor drive of the retrofit kit, a drive unit 18 is according to the FIG. 1 to 14 provided which is suitable for exerting a pulling effect on the pull cables of Bowden cables or the pull cable of at least one Bowden cable and thereby adjusting components relative to one another. For the sake of clarity, the drive unit 18 is shown in FIG FIG. 15 to 23 however omitted.

In FIG. 15th an auxiliary frame 100 of a retrofit kit according to the invention of an electromotive adjusting device is shown, which has two frame parts 104, 106 which can be pivoted relative to one another about a horizontal pivot axis 102.

The frame part 104 has two longitudinal spars 108, 108 'spaced from one another transversely to the longitudinal direction of the subframe 100. The frame part 106 is constructed accordingly and has longitudinal spars 110, 110 'laterally spaced from one another. The longitudinal spars 108, 108 ', 110, 110' are formed in the illustrated embodiment by C-profile rails. On their side facing the upholstery when the retrofit kit is used, the frame parts 104, 106 each have a plurality of spring elements, which in this embodiment are formed by resilient slats, of which only two slats are provided with the reference numerals 112, 114 in the drawing. FIG. 15th shows the auxiliary frame 100 in an initial position of the adjustment movement in which the frame parts 104, 106 span a horizontal support plane with one another.

FIG. 16 shows the auxiliary frame 100 in an end position of the adjustment movement, in which the frame parts 104, 106, on the other hand, are pivoted relative to one another and are arranged at an angle to one another.

FIG. 17th shows a detail FIG. 16 in the area of a swivel joint 116, via which the frame parts 104, 106 are connected to one another in a swivel-adjustable manner. The pivot joint 116 connects the longitudinal spar 108 'of the frame part 104 with the longitudinal spar 110' of the frame part 106. The connection of the longitudinal spar 108 of the frame part 104 to the longitudinal spar 110 of the frame part 106 is designed accordingly and is therefore not explained in more detail.

FIG. 18th shows in opposite FIG. 17th enlarged scale the swivel joint 116, wherein it can be seen in particular that the longitudinal spar 108 'is formed by a C-profile rail.

To explain the adjustment of the swivel joint 116, which, independently of the retrofit kit according to the invention, has its own inventive significance and also for the swivel adjustment of other components, in particular furniture components, is suitable, is referred to below FIG. 19th Referenced.

In this exemplary embodiment, a pivot lever 118 designed as an erecting lever is provided as an adjusting element for pivoting the frame parts 104, 106 relative to one another, one end of which is connected to a two-armed lever 122 so that it can rotate about a pivot joint 120. The end of the pivot lever facing away from the pivot bearing 120 is loosely supported on the base of the in FIG. 19th profile rail not shown.

At the end of the pivot lever 118 facing away from the pivot bearing 120, with which the pivot lever is supported on the base of the profile rail, a pull cable of a Bowden cable is fixed in a tension-proof manner, which in FIG. 19th is indicated at the reference number 124.

A first lever arm 126 of the two-armed lever 122 is articulated eccentrically to the pivot axis 102 with the longitudinal spar 110 ′ of the frame part 106. The second lever arm 128 of the two-armed lever 122 is guided on the other frame part 104 by means of a linear guide. The linear guide has a slide 130 which is caught in the C-profile of the longitudinal spar 108 'and is thus guided in a sliding manner on the same.

To adjust the frame parts 104, 106 relative to one another, the drive unit exerts a tensile force on the pulling cable 124 of the Bowden cable in the direction of an arrow 132, so that the pivot lever 118 pivots around the pivot bearing 120 in a supporting manner on the base of the C-profile of the longitudinal beam 108 ' and stands up here. As a result, the two-armed lever 122 is raised, the carriage 130 sliding in the C-profile of the longitudinal spar 108 'in the direction of the arrow 132 and the longitudinal spar 110' and thus the frame part 106 about the pivot axis 102 in FIG FIG. 19th is pivoted counterclockwise.

FIG. 20th shows the pivot joint 116 according to FIG FIG. 19th with carriage 130 omitted.

The end position of the adjustment movement of the frame parts 104, 106 relative to one another is shown in FIG FIG. 16 shown.

FIG. 21st shows a combination of an inventive subframe 100 with a support device 134 in the form of a slatted frame. Here, the auxiliary frame 100 is placed on the slatted frame 134 and thus arranged between the slatted frame 134 and a mattress not shown in the drawing. Here, the auxiliary frame 100 is aligned in the longitudinal direction of the slatted frame 104 so that the frame part 110 is located in the area of the upper body of a person resting on the mattress, the pivoting of the frame part 106 relative to the frame part 104 so that the mattress is raised in the area of the person's upper body. Out FIG. 21st it can be seen that the subframe extends in the longitudinal direction of the slatted frame 134 only over part of the slatted frame 134. As a result, an electromotive adjustability is realized in the area of the upper body of a person resting on the slatted frame 134 with the auxiliary frame 104 placed thereon, the auxiliary frame 100 being made compact is.

FIG. 22nd shows the subframe 100 in a maximum adjustment position in which the frame parts 104, 106 are adjusted to a maximum relative to one another.

Out FIG. 23 it can be seen that the subframe 104 is only small in height and can therefore easily be placed between the slatted frame and the mattress without this being a problem in any way.

The invention makes it possible in a simple manner to retrofit slatted frames that cannot be adjusted by an electric motor or that are not adjustable by an electric motor, or other support devices with an electric motor-driven adjusting device.

In the various figures of the drawing and in the various exemplary embodiments, identical or corresponding components are provided with the same reference symbols.

Claims (6)

1. Retrofitting set for retrofitting a support device for supporting a padding of a chair and/or lounger, in particular a mattress of a bed, with an electric motor adjusting device,
   with a subframe (100) which can be inserted between the support device and the padding, which subframe has a main body with at least two frame parts (104, 106) which are pivotable relative to one another by the pulling action of a traction rope (124) of a Bowden cable, which is in traction connection with an electric motor drive unit (18),
   wherein an adjusting member for pivoting the frame parts (104, 106) relative to one another is a pivot lever (118) pivotable by the pulling action of the traction rope (124) of the Bowden cable,
   characterised in that
   one end of the pivot lever (118) is supported in a sliding manner on a bearing and at the other end of the pivot lever (118) a two-arm lever (122) is mounted rotatably, the first lever arm of which is connected by articulation to one of the frame parts (106) and its second lever arm is guided by means of a linear guide on the other frame part (104).
2. Retrofitting set according to claim 1, characterised in that the main body consists of first frame part (104) and a second frame part (106) which is pivotable relative to the first frame part.
3. Retrofitting set according to claim 1 or 2, characterised in that the length of the subframe (100) in longitudinal direction of the support device to be retrofitted is much smaller than the extension of the support device to be retrofitted in this direction.
4. Retrofitting set according to claim 1, characterised in that the linear guide has a profile rail, which forms a longitudinal runner (108') of one of the frame parts (104).
5. Retrofitting set according to claim 4, characterised in that the profile rail is a C-profile rail.
6. Support device for supporting a cushion of a chair and/or lounger, in particular a mattress of a bed,
   characterised in that
   it has a retrofitting set according to any of claims 1 to 5, the subframe (100) of which is inserted between the padding and the support device.

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