EP2084992B1 - Seating furniture and mounting for same - Google Patents

Description

Field of application and state of the art

The invention relates to a piece of seating furniture according to the preamble of claim 1.

A relevant in the context of the invention piece of furniture is from the DE 20104534 U1 known. This piece of furniture has a plate-like trained support segment for the legs of a user, which can be swung out of its unused starting position below a seat by means of a so-called scissor mechanism and is then arranged in the swung-out state approximately at the height of the seat. This support segment is tilted by about 90 ° from the vertical to the horizontal.

A disadvantage of this configuration is that the scissors mechanism used is complicated and prone and beyond interfering in the extended state of the support segment to a considerable extent the aesthetic impression of the piece of furniture.

From the DE 3718645 C2 a seat is known in which a seat facing the first support portion is pivotable about a common pivot axis relative to the seat surface. In addition, a second support region remote from the seat surface adjoins the first support region, which is closer to the seat surface, and which is pivotable relative to the first support section about a further pivot axis. The first support section is approximately vertical in the unused state and approximately horizontally aligned in the used state.

A disadvantage of this embodiment is that the realization with an immediate pivoting of the support portion relative to the seat only with relatively thin support sections with only low padding thickness can be realized because the first support section is unused or not very limited under the seat displaced in the unused state.

Seating furniture is also known from the prior art, which have a fold-out support surface for the legs of the seated person, wherein this support surface is realized via a parallelogram mechanism. The support surfaces are therefore aligned approximately horizontally both in the congested state and in the functional state. The disadvantage of this is that in this case the padding thickness is limited to the support sections and that the corresponding connection lever which connect the seat with the extendable support section, are necessarily provided laterally adjacent to the support surface or break the support surface of the support section. Both are considered aesthetically disadvantageous.

As a variant of this seating with parallelogram displacement of the support section for the legs, it is known that a support section, which is aligned horizontally both in the congestion state and in the functional state, by appropriate design of the lever is directed to pivot by appropriate design of the lever in the transition from the congestion state to the functional state in an intermediate state about a horizontal pivot axis to ensure that the support section can be passed without collision on a main section with seat.

From the WO 92/01409 A1 is known a passenger seat, which has a leg rest and a contrast movable footrest. The legrest is movable relative to a seat surface, wherein a positive guidance is realized by a double lever design.

From the DE 102005001877 A1 is a chair with a variable legrest known.

From the DE 29501078 U1 a chair is known, which has a leg rest, which is arranged in a stowage position under a seat and opposite to this can be moved forward in a functional position. The seat and the leg rest are hinged together via a coupling lever.

Task and solution

The object of the invention is to develop a generic piece of seating furniture to the effect that even heavily padded leg segments can be used and / or that the passage between congestion and functional state realizing mechanism is better hidden than in the known from the prior art seating furniture pieces.

According to the invention this is achieved in that the seat piece of furniture is formed with the features of claim 1.

This design according to the invention is based on the basic idea of the invention that the leg segment is brought out of its stowage position under the main segment into its functional position in front of the leg segment with a superimposed movement. A particularly advantageous embodiment of this basic idea provides that in this case the path of movement of the pivot axis fixedly provided on the leg segment passes through an intermediate lowering in an intermediate position before reaching the functional position. The movement path preferably corresponds to a circular path segment.

The link provided in accordance with this invention is movable with respect to a rotational degree of freedom with respect to the main segment or a base frame on which the main segment rests. The leg segment in turn is movable relative to the intermediate segment with respect to a further degree of rotational freedom. Together, these two degrees of freedom make it possible to design the transitional movement between the stowage position and the functional position of the leg segment in such a way that even with a comparatively thick embossment of the leg segment, this can be guided past the main segment without collision and can be arranged in its pivoted position in front of the main segment. The two pivot axes, which always remain at a constant distance from each other through the connecting member, are formed parallel to each other. It is also possible to use a plurality of connecting members whose first and second pivot axes coincide in each case.

For the purposes of the invention is as a piece of furniture a separately usable piece of furniture such as a sofa or armchair understood as well as a furniture module, which can be connected to other modules together to a sofa or a sofa or the like. The seating furniture has a preferably upholstered seating area, with the seat cushion or the seat cushion as the main segment in the Meaning of the invention is understood. This main segment may be formed stationary, so that it is not movable to an external reference system, such as a floor on which the piece of furniture stands. However, the main segment may also be movable relative to this reference frame and a base frame fixed in this reference frame, this flexibility preferably being limited to a slight pivoting, displacement or superimposed sliding and pivoting movement of the main segment relative to the base frame. The main segment extends substantially in a horizontal plane, which applies at least to the seat surface. A horizontal extension is understood to mean that the seat surface deviates on average by no more than 25 ° from the horizontal. Unless otherwise indicated, in the context of this invention, the floor under the piece of furniture is used as the reference system when speaking of the horizontal or the vertical. As a leg segment is understood a part of the seating furniture piece according to the invention, which has at least one support surface and any kind of hinge means, which ensure the pivotability about the second pivot axis.

The substantially horizontal orientation of the support surface of the leg segment in the functional position is to be understood so that the support surface deviates on average by no more than 30 ° from a horizontal. Compared to this orientation in the functional position, the support surface is tilted in the stowage position. The tilt angle between stowed position and functional position is preferably between 70 ° and 180 °. It is particularly advantageous if the support surface is aligned substantially vertically in the congested state, this means that a resulting surface normal on the support surface by a maximum of 10 ° relative to the horizontal facing upwards or by a maximum of 30 ° relative to the horizontal downwards.

The connecting member is a rigid component, which is designed for pivotable articulation on the main segment or the base frame on the one hand and the leg segment on the other hand. As rigid while a component is considered, which ensures a constant distance between the first and second pivot axis. The connecting means has pivot means, such as hinge arrangements, which define the first and second pivot axes. Axles in the sense of this invention are understood to mean axes of rotation in a non-figurative sense. An axis therefore only describes the relative mobility about an imaginary stationary axis of rotation. All known from the prior art for this purpose, suitable machine elements such as bolts, axle sections, Welzlagerverbindungen and the like are included.

For the purposes of this application, indications such as "before" and "behind" and corresponding directions are to be understood in such a way that the leg segment is arranged in its functional position in front of the main segment and is displaced in the transfer to its stowed position relative to the horizontal to the rear. Accordingly, the leading edge of the main segment in the sense of this invention is understood to mean the end edge or end surface of the main segment that points to the knees.

The second pivot axis between the connecting member and the leg segment is preferably not arranged in the functional position of the leg segment below the main segment, in particular not below the seat surface of the main segment. In contrast, the second pivot axis in the stowage position of the leg segment is preferably arranged below the main segment, but at least under the seat of the main segment to allow a position of the leg segment in the stowed position, wherein the leg segment at least predominantly disposed below the main segment and / or its seating surface is. Preferably, in the stowed position of the leg segment in the horizontal, the second pivot axis is spaced rearwardly at least by a distance from the leading edge of the main segment, which corresponds to half the thickness of the leg segment.

In the functional position of the leg segment, the second pivot axis is arranged in the horizontal in front of the first pivot axis. It is considered particularly advantageous if in the stowed position, in contrast, the second pivot axis is arranged with respect to a horizontal behind the first pivot axis. The result of this is that during the transition from the stowed position into the functional position in the vertical, an intermediate lowering of the second pivot axis is achieved if, when pivoting about the first pivot axis, it is arranged directly below the first pivot axis. This lowering is advantageous because it allows particularly easy to ensure collision freedom of the leg segment and the main segment in the transfer of the leg segment in the functional position.

The angle between a vertical and the main extension direction of the connecting member is in the stowage position preferably between 0 and 30 °, wherein the main extension direction of the connecting member is understood to be a direction that runs along a connecting line of the first and second pivot axis. It is particularly advantageous if the leg segment can be pivoted between its stowed position and its functional position by an angle between 60 ° and 150 °, preferably between 75 ° and 120 °. These limits have been found to be particularly advantageous in terms of ensuring that a minimum angle of 60 ° or 75 ° sufficient displacement of the leg segment in the horizontal relative to the main segment, while maintaining the maximum angle of 150 ° or 120 °, the operation of the Movement mechanism by means of a substantially translationally moving push rod is possible without difficulty.

With regard to the position of the first pivot axis, it is considered to be particularly preferred if this is provided in the horizontal in the region of the leading edge of the main segment and / or provided in the vertical in the region of the height of the underside of the main segment. In the horizontal, the pivot axis is preferably arranged in the foremost quarter of the main segment, in particular in a range between 0 cm and 25 cm from the front edge, arranged. In the vertical, it is advantageous if the first pivot axis is provided in the lower third or the lower half of the main segment or even arranged below the main segment. This position of the first pivot axis has been found to be particularly advantageous in order to allow a collision-free mobility of the leg segment while a stable link. In particular, it is advantageous if the first pivot axis is provided in the region of a frame of the main segment or of the base frame since a particularly simple, stable and reliable possibility exists in the region of this frame to mount corresponding hinge means which make the first pivot axis available. These hinge means are preferably mounted on the rear side or the underside of a provided on the front of the main segment support of the frame or the frame.

In a further development of the invention, the connecting member has a bent or curved shape. Such a shape is given if along the main extension direction of the connecting member, ie along a connecting line of the first and the second pivot axis, at least in sections, a free space is provided, which is off the course of the connecting member. The curved or cranked shape has the advantage that it allows an arrangement of the connecting member in the stowage position, wherein the leg segment is at least partially disposed in the region of the main extension direction of the connecting member. The link runs around the leg segment around. In the functional position of the leg segment, the curved shape has the advantage that, when the connecting member is attached to a frame part of the main segment such that the first pivot axis lies on the back side of a frame section, it allows the connecting member to extend forwards around this frame section Area in front of the main segment protrudes. The bend or offset is preferably such that the respective extension directions of the connecting member in the region of the Schenk axes form an angle between 90 ° and 120 °.

According to the invention, positive guidance means are provided by which each relative position of the connecting member to the main segment or to the base frame is assigned a defined relative position of the connecting member to the leg segment. Under positive guidance means is understood in this context, a mechanical coupling, is achieved by the fact that the production of a certain condition with respect to the relative position of the link to the base frame or the main segment automatically leads to a resulting therefrom relative position of the link to the leg segment and / or vice versa. This has the advantage that, for example, electrical actuation can be achieved in a simple manner via only one electric motor, which directly influences, for example, the relative position of the connecting member to the main segment and thereby indirectly influences the relative position of the connecting member relative to the leg segment.

Such a forced guiding means can be achieved for example by a rigid positive guide member, which at the main segment or a base frame of the piece of seating furniture to a third to the main segment or to the base frame of the piece of furniture stationary pivot axis is pivotally articulated and which is pivotally articulated on the leg segment to a fourth leg segment stationary Schenkachse.

The positive guide member is accordingly like the connecting member on the one hand pivotally articulated on the main segment or the base frame and on the other hand pivotally mounted on the leg segment. The third and the fourth pivot axis are provided parallel to the first and second pivot axis and spaced therefrom. Since the connecting member and the positive guide member are equivalent in terms of their rigid design and their articulation, their naming is arbitrary.

It is considered particularly advantageous if the second and / or the fourth pivot axis is formed by a hinge means, which is provided on a boom which extends from a bottom of the leg segment in the functional position of the leg segment downwards. This boom allows a particularly simple design of the second and / or fourth pivot axis, since it can be avoided by them that these pivot axes must be provided on a pad portion of the leg segment. Especially in an embodiment with a connecting member and positive guide member, this is due to the two spaced-apart required pivot axes, the second and the fourth pivot axis of advantage.

Particularly advantageous is a design in which the third pivot axis is arranged behind the first pivot axis, the connecting member is pivoted at the transition between the stowed position and the functional position by an angle between 95 "and 150 ° and the positive guide member at the transition between the stowed position and the functional position pivoted at an angle between 130 ° and 180 ° becomes. These angle data in each case relate to the angle enclosed by the respective end positions, wherein in the transition meanwhile also larger angles are conceivable. With regard to the link an angle between 115 ° and 135 ° is considered to be particularly advantageous. With regard to the positive guide member, an angle between 140 ° and 170 ° is considered to be particularly advantageous.

For the desired movement, there are particularly preferred distance ratios between the pivot axes. The distances between the first and second pivot axis, between the third and fourth pivot axis, between the first and second pivot axis and between the third and fourth pivot axis due to the respective common linkage on the main segment, the leg segment, the connecting member and the positive guide member are immutable. It is considered particularly advantageous if the spacing between the third pivot axis and the fourth pivot axis is greater by a factor of 1.5 to 1.9 than the spacing of the first pivot axis from the third pivot axis, the spacing between the first pivot axis and the second pivot axis Swivel axis by a factor of 2.9 to 3.3 is greater than the spacing of the first pivot axis of the third pivot axis, and the spacing between the second and the fourth pivot axis by a factor of 2.4 to 2.8 is greater than the spacing of the first Pivot axis of the third pivot axis.

Preferably, the first, second, third and fourth pivot axis are arranged such that the extension direction of the connecting member and the extension direction of the positive guide member at the transition from the stowed position into the functional position of the leg segment always include an angle> 15 °. As extent direction In this case, the direction of an imaginary straight line between the respective pivot axes of the links is considered.

In a further development of the invention, a backrest segment is provided which is pivotable relative to the main segment about a backrest axis, wherein the backrest segment is operatively coupled to the leg segment by means of coupling means that each relative position of the backrest segment to the main segment or the base frame a relative position of the leg segment to the main segment or base frame assigned. This coupling of the position of the backrest to the position of the leg segment makes it possible to effect by reclining a transfer of the leg segment in the functional position. Preferably, the coupling means are designed so that they can be blocked by means of a manually operable handle to prevent accidental transfer of the leg segment in the functional position. However, the blocking can also take place via a design in which allow only from a predetermined minimum body pressure movement of the leg segment.

The active coupling between the backrest segment and the leg segment can also take place indirectly via a slider which influences the movement of the leg segment by sliding or rolling on a control track positively coupled to the leg segment. The operation of such a slider will be explained below.

In a further development of the invention, at least two rigid control members are provided, each having a first Anlenkabschnitt which is variable in position by means of each of an electric motor, and with a respective second articulation section on the leg segment and / or on a rigid connecting member between the main segment and leg segment and / or are articulated on a translationally movable carriage. These control members make it possible to provide the motors in a rear region of the seat piece of furniture, preferably below the main segment, and to influence the relative position of the leg segment to the main segment by a substantially translatory displacement of the control members.

In a further development of the invention, a rotary member is provided, which is designed to be rotatable about a relative to the main segment or to a base frame of the furniture stationary Drehorganachse. In this case, at least one rigid control member is provided, which is articulated with a respective first hinge portion on the rotary member and with a respective second hinge portion on the leg segment and / or on a rigid connecting member between the main segment and leg segment and / or on a translationally movable slide and / or a Auxiliary link is articulated for indirect movement of the leg segment.

Preferably, at least two rigid control members are provided.

When Dregangan is a component, which is characterized in that it is rotatable about the Drehorganachse, which is stationary to the base frame and / or the main segment. Furthermore, the rotary member is fixedly connected to the radially spaced from the Drehorganachse Anlenkabschnitt. Particularly simple embodiments of the rotary member provide that this is designed as a rotatable disc or angle lever. The control member or the control members are characterized in that they each have two hinge portions which are rigidly interconnected. Preferably, the control members are linkages, in particular metal rods, at both ends of which the articulation sections are provided. The first hinge sections are articulated on the rotary member, wherein the articulation point on the rotary member is stationary to the Drehorgan. This results in that this articulation point can be changed by a rotation of the rotary member, the Drehorganachse relative to the main segment. If two control members are connected to the rotary member, they are moved simultaneously with the rotation of the rotary member. The control members can be used for different purposes, wherein in each case by the movement of the first Anlenkabschnitts a movement of the second Anlenkabschnitts is caused, thereby indirectly causing a movement of the component on which the second Anlenkabschnitt is provided. The type of movement of the first Anlenkabschnitts and thus indirectly also the second Anlenkabschnitts depends on the angular position of the articulation point of the respective Anlenkabschnitts and the distance of the Anlenkpunkts from the Drehorganachse.

A variant of the rotary member provides that the Anlenkabschnitt are not fixedly provided on the rotary member, but guided by guide tracks on the rotary member are designed radially deflectable. In such a design, a rotation of the control element leads to the displacement of the articulation point, which is preferably additionally guided in a guide segment with a main segment-fixed guide track, inwards or outwards. By a hinged to the Anlenkabschnitt control this can be used to move the segments relative to each other.

A possibility of using the control members provides that both control members are articulated with their respective second hinge portion on the leg segment. As a result, the mechanical system in which the leg segment has two degrees of freedom through the first and second pivot axes or else through the pivot axis and the translation means assumes a statically determined state. In a design with a link, the orientation of the link results from the mechanical certainty of the situation the leg segment whose position is completely determined by the two control members and the connecting member.

Alternatively, a first control member may be articulated with its second articulation section on the connecting member and a second control member may be articulated with its second articulation section on the leg segment. In this variant, the static definiteness of the position of the link results from the fact that the only one degree of freedom of the connecting member relative to the main segment or the base frame deleted by the first control member. The position of the connecting member thus results completely from the position of the first control member. By thus fixed position of the connecting link, the degrees of freedom of the leg segment are reduced to initially one degree of freedom, namely the pivotability about the second pivot axis. However, this degree of freedom is also eliminated due to the defined position of the second control member.

In an embodiment in which positive guidance means of the type described above are provided, a single control member is sufficient for moving the leg segment. This also applies in the case of the invention, in which in addition to the leg segment, an end segment is provided, the relative movement is operatively coupled to the leg segment, for example by means of a later explained yet slider system with the relative movement of the leg segment to the main segment. In such an embodiment, it is sufficient if the single control member is articulated on the end segment or on an auxiliary member of the slide system.

In a further development of the invention, the Drehorganachse is aligned approximately vertically. Under an approximately vertical orientation is understood to mean an orientation, according to which the Drehorganachse includes with a vertical angle of 30 ° maximum. This design of the Dregangans with a rotation about a vertical axis allows a particularly space-saving arrangement of the rotary member. The rotary member, which is preferably flat and approximately disc-shaped, can be provided while retaining the structure of a piece of furniture not specifically intended for such a rotary member, below its main segment. In addition to the flexible usability achievable by the vertical Drehorganachse flat design also leads to aesthetically beneficial results. The rotary member and an optionally provided for driving the Dregangans drive train are easily arranged so that they can not be seen in a proper installation of the piece of seating furniture.

Preferably, the rotary member is operatively coupled to an electric motor, which is designed to rotate the rotary member about the Drehorganachse. The electric motor may be a conventional electric motor having a rotatable output shaft which rotates the rotary member, for example by means of a gear connection. Particularly advantageous is the use of a linear actuator is considered, which has a translationally driven actuator rod, which in turn can be pivoted similar to the control members pivotally mounted on the rotary member.

In one embodiment of the rotary member with electric motor, it is considered to be particularly preferred if the rotary member and the electric motor are formed as a common integral unit, said integral unit has connecting portions for attachment to the main segment and / or a base frame of the seating furniture piece. This integral unit is advantageous in terms of assembly since it can already be completed in the course of a pre-assembly. In particular, such a design also allows parts of seating furniture to be used both for seating pieces of furniture according to the invention and for pieces of seating furniture without a leg segment, since the required Adjustment of the main segment in terms of a piece of seating furniture according to the invention is reduced to a minimum.

Alternatively to the operation with an electric motor, the rotary member can also be operatively coupled with a manually operable handle, which is designed to rotate the rotary member about a Drehorganachse. As a manual handle while each actuator is considered, which has no externally powered with energy engine. A manual operation is also present, in particular, when the actuation takes place via the user leaning back and the resulting application of force to a backrest. In such an embodiment, it may be advantageous to provide a rotary member with a horizontal Drehorganachse to make the translation between Lehnenbewegung and Drehorganbewegung very easy. The handle can also be designed for manual actuation, for example by a shaft is provided on a rotary member with horizontal Drehorganachse on the rotary member, on which the rotary member is fixed. This shaft can then be pivoted together with the rotary member by means of an actuating lever provided thereon, wherein the actuating lever is preferably arranged laterally next to the main segment and is pivotable about the Drehorganachse.

Both for the operation of the rotary member by means of an electric motor as well as by means of a manually operable handle applies that preferably a translation is provided. This translation makes it possible, on the one hand, to effect the rotation of the main body with a relatively weak electric motor or a handle which can be actuated particularly smoothly. The translation can also be used to provide the manually operable handle pivotable about a different pivot axis than the Drehorganachse of the rotary member.

It is particularly advantageous if the rotary member in a rotational position in which the leg segment is arranged in its functional position, and / or in a rotational position in which the leg segment is arranged in its stowed position, abuts against a rotational movement at least indirectly limiting stop. Such a stop protects the mechanics of the piece of seating furniture, as over-rotation of the rotary member is prevented. It is particularly advantageous if the rotational stop cooperates directly with the rotary member, that is to say in such a way that the rotary member comes to bear directly against this stop in a rotational end position. In alternative embodiments, however, the stop may also be provided at any other point within a drive train, which serves to drive the rotary member. The stop is preferably arranged beyond a dead center, at which the direction of movement of a control member connected to the rotary member at least with respect to the main movement direction reverses. This ensures that a pressurization brings the stop in function, without the stop is an obstacle in a movement between the functional state and congestion.

It is further considered to be particularly advantageous that the rotary member and the first control member and / or the second control member are designed and arranged such that in the functional position of the leg segment a pressure force acting on the first or second control member momentarily impacts the rotary member against the stop. This ensures that the pressure force on the control members, which is caused by the weight of the leg segment and in particular by the weight applied by the legs of a user, is reliably introduced into the appropriately designed rotation stop.

In a particularly advantageous embodiment, a backrest segment is provided, which is pivotable relative to the main segment and a backrest axis. In this case, the backrest segment is operatively coupled by means of coupling means with the rotary member to the effect that each relative position of the backrest segment to the main segment or a base frame is associated with a rotational position of the rotary member. As already described above, this can be achieved in a blockable by blocking means preferably way that a user moves by leaning back the leg segment. This movement is according to this development result of the fact that initially by the movement of the backrest, the rotary member is rotated, for example by means of a simple backrest control member which is articulated on the one hand on the backrest and on the other hand articulated on the rotary member. The rotation of the rotary member then results in movement of the leg segment in the manner described above.

According to the invention the piece of seating furniture on an end segment, on the upper side a support surface is provided, wherein the end segment relative to the leg segment between a stowage position and a functional position is relatively movable and wherein it is arranged in its functional position in front of the front edge of the leg segment.

The end segment serves as the leg segment and the support of the legs. Depending on the size of the leg segment and the end segment, the end segment serves above all as a support for the lower legs and / or the feet of a person sitting on the seat piece.

The end segment is preferably pivotable about an end segment pivot axis relative to the leg segment, wherein the end segment pivot axis is preferably fixed relative to the end segment and relative to the leg segment. This is a special simple design of the linkage. This structure results in a chain-like arrangement in which the end segment connects to the leg segment and the leg segment is pivotable relative to the main segment. The Endsegmentschwenkachse is preferably provided with respect to the end segment of arms, which are fixedly connected to a cushion part of the end segment. On the side of the leg segment, the end segment pivot axis, which is likewise fixed to the leg segment, is preferably arranged on the underside of the leg segment.

In a further development of the invention, the end segment is pivoted in its stowed position relative to the leg segment approximately at an angle between 50 ° and 130 ° and / or arranged approximately parallel to the main segment. The specified angles refer to the orientation of the seat and / or the bearing surfaces.

In order to jointly control the movement of the end segment relative to the leg segment and the leg segment relative to the main segment, a slider system is provided according to the invention with a slider which is operatively coupled to the end segment via a rigid auxiliary member and which forms a first control portion for cooperating with a first control track whose position is forcibly coupled to the position of the leg segment.

With such a configuration, it is possible to cause both said relative movements by causing a movement of the auxiliary member or the end segment. Thus, a transfer of the leg segment and the end segment can be achieved in the respective functional position by a single control member which is articulated on the slider itself, on the auxiliary member or end segment. The movement of the leg segment relative to the main segment is achieved via the first control section and a first control track. The stationary on Auxiliary member provided first control portion is forcibly guided for this purpose, which can be done for example by a second control track or a linkage of the auxiliary member via an intermediate member on the main segment. This positive control of the control section causes a defined movement path in a movement of the auxiliary member by means of the single control member. This movement path of the control section causes the relative movement of the leg segment relative to the main segment with a shaping of the first control track adapted thereto.

It is particularly advantageous in this embodiment that the movements of the leg segment and the end segment can be made easily independent of each other by the design of the first control track, so that it is possible, the end segment relative to the leg segment in the stowed position or one of them only slightly different position hold until the leg segment has reached its functional position. Particularly advantageous is an approximately L-shaped configuration of the first control track.

It is particularly advantageous if the first control track and the slider are adapted to one another in such a way that during the transition of the leg segment and the end segment from the stowed position into the functional position in a first movement phase, the leg segment is pivoted by at least 70 ° in the direction of the functional position relative to the main segment , While the end segment is pivoted relative to the leg segment by a maximum of 50 ° in the direction of the functional position, and in a second phase of movement, the leg segment and the end segment each reach their functional position. In contrast, an embodiment is preferred in which the main segment is pivoted in the first phase by at least 80 ° or even 90 °, while the end segment is pivoted relative to the leg segment only by a maximum of 40 ° or even only 30 °.

The multiphase movement realized by the first control track is ideal for moving the leg segment and the end segment into the functional state without collision from the jam state under the main segment, since the first phase can be used to overcome the particularly critical movement section in which the leg segment is pivoted about 45 ° relative to its stowed position. If the end segment is still approximately in its stowed position in this section relative to the leg segment, placement of the end segment on the floor under the piece of furniture can be prevented.

The first control track is preferably provided on the positive guide member, on the connecting member or on the leg segment, that is to say firmly connected to a respective element. It is also possible to provide the control track in or on the rotary member. In the simplest case, the first control track may be an edge of the corresponding component, along which the first control section slides when force is applied to the auxiliary member or the end segment or rolls off as a roller in an embodiment of the first control section. However, the control track can also be designed as a closed gate or slot.

The above-mentioned forced operation of the first control section serves to define the movement path of the first control section. It can be realized in different ways. Preferably, for this purpose, a second control section is provided on the auxiliary member, which is movable along a second control track, wherein the second control track is preferably provided on the connecting member or on the positive guide member. The second control section may also be identical to the first control section and slide along the first and the second control track during a movement of the auxiliary member simultaneously or unroll. For the design of the second control track, the above explanations to the first control track apply. As an alternative to the embodiment with the second control track, the auxiliary member can be articulated by means of a pivotally connected to the auxiliary member intermediate member on the main segment or a base frame of the chair.

In an embodiment with two control tracks, two embodiments are particularly preferred. In the first embodiment, the first control track is provided directly on the leg segment or a stationary component and provided the second control track on the connecting member. In the second embodiment, the first control track on the positive guide member and the second control track is provided on the connecting member.

In a further development of the invention, a first end segment control member is provided on the rotary member that is articulated with a first Anlenkabschnitt on the rotary member and that is operatively coupled to the end segment such that a movement of the rotary member by means of the further control member causes a relative movement of the end segment relative to the leg segment , In the embodiment described above with slider system, the end segment control member may be the only control member on the rotary member. In one embodiment without a slider system, two or three spaced-apart first hinge portions of two or three rigid control members are arranged on the rotary member, which are preferably each spaced from each other. The first end segment control member causes movement of the end segment by its displacement. For this purpose, it can be hinged in the simplest case with a second Anlenkabschnitt directly on the end segment.

The articulation of the first Anlenkabschnitte on the rotary member is preferably designed such that the first Anlenkabschnitte the control members at least partially articulated in different angular positions to the Drehorganachse on the rotary member and / or are articulated at different distances to the Drehorganachse on Drehorgan.

Through these two parameters, the angular position and the distance, the influence of a rotation of the rotary member on the various control members can be influenced individually and depending on the function. In particular, it is possible to determine by the specific choice of the angular position, in which phase of the transition from the stowed position to the functional position, each control member is to be moved to a great extent or to a small extent. A rotation of the rotary member by a defined angle then leads to only a slight movement of a control member, when the main extension direction of the control member with an imaginary connecting line between articulation point and Drehorganachse includes a small angle. A particularly strong effect is achieved by the identically defined angle when the main extension axis of the respective control member with the imaginary connecting line forms an angle of about 90 °. While the choice of the angular position of the articulation point makes it possible to determine in which phase by the rotation of the rotary member a particularly strong influence on the movement of the control member is effected, the distance from the rotation axis is suitable to the effect over the entire rotational movement of the rotary member in proportion reduce or reinforce.

Thus, for example, it is possible to provide two control members in the same angular position, but with different distances to the Drehorganachse on the rotary member which causes the more inwardly articulated control member is moved over the entire movement to a lesser extent than the externally articulated control member. The so varying movement of the control members can be particularly advantageous be used to control panning operations, in particular the pivoting operation of the leg segment.

In a further development of the invention, a connecting line between the Drehorganachse and the first articulation point of the first and / or second control member with a main extension direction of the respective control member forms an angle of not more than 20 ° when the leg segment is in its functional position. The result of this is that a movement of the rotary member, starting from the functional position, leads to a very slowly accelerating movement of the first and / or second control member and thus to a slow acceleration of the leg segment when the first and / or second control member is used to control the position of the leg segment Leg segment results in the transition from the functional position to the stowed position.

It is also advantageous if a connecting line between the Drehorganachse and the first articulation point of the third control member with a main extension direction of the third control member forms an angle between 60 and 120 °, when the leg segment is in its functional position. An angle between 60 ° and 120 °, in particular an angle of about 90 ° causes the transition from the functional state to the jam state, a rotation of the rotary member initially leads to a particularly rapid relative movement of the end segment relative to the leg segment. Thus, the end segment can be pivoted early during the transition phase in the congestion state of the piece of furniture relative to the leg segment and then proceed with only minor relative movement together with the leg segment in the stowage position of the leg segment and thus under the main segment.

The main extension direction of a control member is considered a direction which is defined by the two articulation points of the control member.

In a further development of the invention, the first end segment control member is pivotally connected with its second Anlenkabschnitt to a second Endsegment-control member which is articulated with a first Anlenkabschnitt on the first end segment control member and a second Anlenkabschnitt on the end segment. In this development, the rotary member is connected to the end segment via the first and second end segment control member, wherein these two control members are mutually pivotable. The pivotability between the further control member can be realized by means of a pivot joint with a defined axis or by means of a three-dimensionally acting ball joint or mechanically equivalent machine elements.

The first end segment control member is preferably guided via a guide means, in particular via a guide means in the manner of an eyelet fixed to the main segment, on a base frame of the piece of furniture or on the leg segment or positively driven in dependence of the relative position of the leg segment to the main segment. As a result of this guide, the second articulation section of the first end segment control element is always mechanically completely determined with respect to its position. Since the second end segment control member is hinged on the one hand on the end segment and on the other hand articulated on the second hinge portion of the third control member, thus a mechanically completely determined coupling of the end segment is ensured to a rotational position of the rotary member. The guide means is preferably designed to be rotatable about a vertical axis or provided with a guide opening which is sufficiently large that the first end segment control member also varies in the case of an articulation on the rotary member Alignment can be performed slidably. As an alternative to such a guide means, it is also possible to provide a secondary tumbler or an angle lever, which is mounted on the main segment or the leg segment movable, in particular pivotable, and on which the first and the second end segment control member are articulated.

The pivotability of the first and second Endsegment-control member against each other has the particularly advantageous effect that takes place largely dependent on the pivoting angle decoupling. For this purpose, it is preferably provided that in the jam state of the piece of furniture in which the leg segment and the end segment are in their respective stowed position, the main directions of extension of the first and second end segment control member form an angle between 70 ° and 110 °. As a result, a rotation of the rotary member and thus a translational movement of the first end segment control member at the transition from the congestion state to the functional state initially no or almost no translational movement of the second end segment control member result. This can be specifically exploited to effect movement of the leg segment from a jam condition in which the leg segment and the end segment are each in their stowed position by movement of the rotary member while the end segment is relative to the leg segment and / or relative to the main segment is hardly moved.

In a further development of the invention, the piece of seating furniture on a base frame, wherein the main segment is designed to be movable relative to the base frame. This makes it possible on the one hand to bring the seat in an individually comfortable for the user position. With regard to the transfer of the leg segment from its stowed position to its functional position, this mobility has the additional advantage that by a slight pivotability and / or displaceability of the main segment to the rear a collision-free passage the leg segment on the main segment is particularly easy to implement.

The invention further relates to a fitting for a chair according to claim 38.

Fittings according to the invention are preferably designed such that they are arranged centrally relative to a transverse direction of the furniture and are used individually and not in pairs. Due to their construction with comparatively few axes of rotation such use and the associated design of the piece of furniture is possible with only one fitting. Preferably, this boom sections are provided, which also allow the introduction laterally applied forces in the fitting reliable. Furthermore, the various members and linkage of the fitting are preferably formed at least partially closed hollow profiles.

A fitting according to the invention preferably occupies only a portion of the width of the main segment and / or of the leg segment of 30% on a piece of furniture according to the invention, so that it is unobtrusively arranged in the middle. From usual perspectives, the fitting is therefore hardly visible even in the functional state.

The fittings according to the invention allow a particularly simple modular construction of a piece of seating furniture, which is formed in the manner described above.

Brief description of the drawings

Fig. 1

die Mechanik einer vierten Ausführungsform eines erfindungsgemäßen Sitzmöbelstücks in einer Ansicht von schräg oben und

Fig. 1a bis 1h

die in Figur 1 dargestellte Mechanik beim Übergang von einem Stauzustand in einen Nutzzustand in Seitenansichten und korrespondierenden separaten Ansichten des Beschlages,

Further advantages and features of the invention will become apparent from the claims and from the following description of a preferred Embodiment of the invention, which will be explained below with reference to the figures. Showing:

Fig. 1

the mechanics of a fourth embodiment of a piece of seating furniture according to the invention in a view obliquely from above and

Fig. 1a to 1h

in the FIG. 1 illustrated mechanism in the transition from a congestion state to a use state in side views and corresponding separate views of the fitting,

Detailed description of the embodiments

The FIGS. 1 and 1a to 1h show an embodiment of a piece of furniture designed as a piece of upholstered furniture 410 according to the invention, of which only the main segment 420 is shown with top side seat, the leg segment 440 and the end segment 460 and the relative movement of these segments 420, 440, 460 provided mechanism. Other components of the piece of furniture are not shown. These components, not shown, comprise a base frame on which the main segment 420 rests in a stationary manner, armrests on both sides of the main segment 420 and a backrest on the end of the main segment 420 facing away from the leg and end segments 440, 460.

The individual components of this mechanism will be described below with reference to Figuren1 . 1a, 1b be explained. Subsequently, the functioning of the transition from the congestion of the Fig. 1a, 1b in the functional state of Fig. 1g, 1h explained.

The in the Fig. 1a to 1h illustrated positions include sectional representations 1a, 1c, 1e, 1g of the seat piece of furniture and perspective views 1b, 1d, 1f, 1h of the mechanics. As can be seen in the perspective illustrations, the mechanism is largely mirror-inverted. Components that are thereby present in duplicate are each referred to below in the singular, in which case both components are meant.

The segments of this embodiment 420, 440, 460 are arranged in a chain behind one another, said mechanism being provided for coupling the segments and their movement.

At the main segment 420, the mechanism is fixed by screwing to a square hollow profile 428, which is part of a base frame of the seating piece 410. On this profile 428, a flange block 428a is fixed, to which a connecting member 480 and a positive guide member 482 are pivotally connected about mutually parallel first and second pivot axes 401, 403. The connecting member 480 and the positive guide member 482 are also each pivotally mounted to the leg segment 440 about also parallel to each other third and fourth pivot axes 402, 404. For this purpose, a fastening element 443 formed by an L-shaped profile 445 and a rod-shaped extension 444 immovably connected thereto is provided on the underside of the leg segment 440. This fastener 443 is bolted to a wooden plate 41, which forms the base for the padding of the leg segment 440. The second pivot axis 402 is formed by an axle pin which is provided on the L-shaped profile 445. The fourth pivot axis 404 is formed by an axle pin disposed at the distal end of the boom 444.

The connecting member 480 and the positive guide member 482 together allow pivoting of the leg segment 440 relative to the Main segment 420, in which the leg segment 440 describes a given by the distances of the pivot axes 401, 402, 403, 404 path of movement, which passes collision-free on the main segment 420.

The movements of both the leg segment 440 and the end segment 460 are realized via a common control member 492, which in Fig. 1 is shown and will be explained below. To enable both the relative movement of the leg segment 440 to the main segment 420 and the relative movement of the end segment 460 to the leg segment 440 with this single control member 492, mechanical engagement of the end segment to the members 480, 482 is provided by means of a slider system. The end segment 460, which is articulated by means of a projection 466 pivotally on the leg segment 440, is controlled with respect to its relative position to the leg segment 440 by means of an auxiliary member 470. This auxiliary link 470 is articulated by the end segment pivot axis 406 about an auxiliary link pivot axis 407 pivotally mounted on the extension 466 of the end segment 460.

At the opposite end of the auxiliary link 470, a roller member 476 is provided which has an inner main roller 476a and an outer minor roller 476b of smaller diameter, which are rotatably mounted on the auxiliary member 470 about a common roller pivot axis 408. The axis of rotation 408 is aligned parallel to the auxiliary member pivot axis 407.

The roller unit 476 abuts both the connecting member 480 and the positive guide member 482. For this purpose, a guide track 480b designed as a curved elongated hole is provided in the connecting member 480, which guide groove extends approximately in the extension direction of the connecting member 480. Furthermore, the positive guide 482 a first guide track 483 is provided, which comprises a first guide track section 483a and a second guide track section 483b. The inner roller 476a of the roller unit 476 is associated with the first guide track 483. The outer roller 476b of the reel unit 476 is associated with the second guide track 480b.

Through the roller unit 476 and the guide tracks 480b, 483, there is an effective coupling between the members 480, 482 for moving the leg segment 440 and the auxiliary member 470 for moving the end segment 460 and the leg segment 440.

The described system can be controlled via only the already mentioned single control member 492, which acts on the articulation point 472 of the auxiliary members 470. The pivot point 472 is controlled by this control member 492 in the direction of in the FIG. 1a shown arrow 474 force. This is done via the in Fig. 1 shown linear actuator 412. This Kraftbeaufschlagung leads starting from the state of Fig. 1a, 1b in that the leg segment 440 and the end segment 460 are transferred from their respective stowed state to their respective functional state, which in the Figures 1g and 1h is shown.

In the starting position, in the FIGS. 1a and 1b is shown, the leg segment 440 is pivoted downwards by about 90 ° relative to the functional state. The end segment 460 is also pivoted about the leg segment 440 by about 90 ° and thus pivoted about 180 ° relative to its functional position. The reel unit 476 is arranged in this initial state at the end pointing to the third pivot axis 403 of the guide track portion 483a of the first guide track 483 and is supported on this guide track 483, so that the end segment 460 can not fall further. Relative to the second guide track 480b, the roller unit 476 is in the initial state of FIGS. 1a and 1b arranged in an end region, which points away from the second pivot axis 402, but not yet at the end stop of the guide tracks 480b. In this initial state, the entire system is completely determined by the fixed control member 492 and immovable in itself.

Only by a force application of the auxiliary member 470 in the direction of the arrow 474, a movement of the leg segment 440 and the end segment 460 is caused. The application of force via the rollers 476b leads to a pivoting of the connecting member 480 in the counterclockwise direction. This is accompanied by a pivoting of the positive guide member 482 counterclockwise. The roller unit 476 is pressed in the direction of the upper stop of the second guide tracks 480b due to their guidance in the guide track 480b and their rolling on the first guide track 483. This leads, as from the Figures 1c, 1d can be seen, to an increase in the angle between the leg segment 440 and the end segment 460 to about 135 °. The end segment 460 thereby engages the leg segment 440 as much as possible. At the same time, the leg segment 440 and the end segment 460 are pivoted forward together under the main segment 420 by the movement of the link 480 and the positive guide member 482.

The shape of the first guide track portion 483a of the guide track 483 ensures that the roller unit 476 until reaching the intermediate state of the FIGS. 1e and 1f remains in said end portion of the second guide tracks 480b. Since the position of the roller unit 476 in the second guide track 480b simultaneously determines the relative position of the end segment 460 to the leg segment 440, this relative position likewise remains largely unchanged. This allows the transition from the starting position of the FIGS. 1a and 1b to the intermediate position of FIGS. 1e and 1f a collision between the end segment 460 and that not shown in the figures Avoid floor. This is further supported by the fact that the leg segment 440 in the transition to its functional position in the meantime at the state of FIGS. 1e, 1f is raised beyond its end position.

With reaching the intermediate state of Fig. 1e and 1f For example, the roller 476a on the first guide track 483 has reached the boundary between the first guide track section 483a and the second guide track section 483b, thus completing a first movement phase dominated in the relative movement between the main segment 420 and the leg segment 440. By exceeding this limit range, the second movement phase of the movement of the end segment 460 begins. Since the movement limiting effect of the first guide track portion 483a with respect to the relative position of the end segment 460 to the leg segment 440 is no longer present in this second phase, the reel unit 476 may terminate the end portion of the second guide track 480b leave and be moved towards the opposite end. As in the state of FIGS. 1e and 1f the guide tracks 480b, 483 are not yet completely parallel, guides the movement of the reel unit 476 with respect to the Figure 1e to the right also to a slight lowering of the leg segment 440. The dominant movement in this second phase, which with reaching the functional state of the Figures 1g, 1h is completed, but is that of the end segment 460. Characterized in that the roller unit 476 is pressed in the guide track 480b to the right, in this second phase and the auxiliary member 470 is displaced approximately in the direction of its extension direction to the right and thus the end segment 460 against the Turned clockwise until it is in the Figures 1g and 1h has reached shown functional position.

That in the FIGS. 1a to 1h shown seat piece of furniture allows it by the construction of its mechanics, with only one control member 492 the complete movement from the stowed position of the leg segment 440 and the end segment 460 to perform their functional position. Acting as a slider roller unit 476 is used in conjunction with the first function track 483 to move in the first movement phase, the leg segment 440, while a relative movement of the end segment 460 to the leg segment 440 is largely blocked. The end of this blocking is achieved when the reel unit 476 exceeds the boundary area between the guide track portions 483a and 483b, since from this point on, movement of the reel unit 476 in the second guide tracks 480b is no longer limited by the first guide track 483.

After exceeding the limit range, therefore, on the one hand the relative movement of the end segment can be achieved by the force acting on the auxiliary member 470. On the other hand, a blockage is achieved with respect to the leg segment 440 after exceeding the limit range: this is supported on the guide track 480b due to the non-parallel alignment of the guide tracks 480b, 483b by means of the roller unit 476. Even under load, a lowering of the leg segment 440 from its functional position is prevented by this blocking.

Claims (38)

1. Item of seating furniture (410), in particular an item of upholstered furniture, comprising

   - a main segment (420) aligned essentially horizontally, on the upper face of which a sitting surface is provided, and

   - a leg segment (440), on the upper face of which a supporting surface is provided, whereby

   - the leg segment (440) can be moved relative to the main segment (420) between a stowed position and a functioning position, whereby it

   - is arranged, when in its functioning position, in front of a front edge of the main segment (420), and is aligned in such a way that the supporting surface is essentially horizontal, and

   - is arranged, when in its stowed position, at least partially underneath the main segment (420), and is tilted with respect to its functioning position,

   and whereby

   - the leg segment (440) is fastened to the main segment (420) by a rigid connecting member (480), whereby the connecting member (480)

   - has a pivoting connection to the main segment (420) or to a base frame of the seating furniture about a swivel axis (401) which is in a fixed position with respect to the main segment (420) or to the base frame of the item of seating furniture, and

   - has a pivoting connection to the leg segment (440) about a second swivel axis (402) which is in a fixed position with respect to the leg segment,

   characterised in that

   - a means of forced guidance (482) is provided by means of which every relative position of the connecting member (480) to the main segment (420) or to the base frame is associated with a defined relative position of the connecting member (480) to the leg segment (440),

   - an end segment (460) is provided, on whose upper face a supporting surface is provided, whereby the end segment (460) can be moved with respect to the leg segment (440) between a stowed position and a functioning position, and whereby, when in its functioning position, it is arranged in front of the front edge of the leg segment (440), and

   - a slider system with a slider (476) is provided,

   - that is operationally coupled through a rigid auxiliary member (470) to the end segment (460), and

   - that is constructed as a first control section (476, 476a) for interaction with a first control track (483), whose position is forcibly coupled to the position of the leg segment (440).
2. Item of seating furniture (410) according to Claim 1,
   characterised in that
   the second swivel axis (402) when in the stowed position is located horizontally behind the first swivel axis (401).
3. Item of seating furniture (410) according to Claim 1 or 2,
   characterised in that
   the leg segment (440) can pivot between its stowed position and its functioning position through an angle between 60° and 150°, favourably between 75° and 120°.
4. Item of seating furniture (410) according to one of the foregoing claims,
   characterised in that

   - the first swivel axis (401) is provided horizontally in the region of the front edge of the main segment (420), and/or

   - the first swivel axis (401) is provided vertically in the region of the level of the lower edge of the main segment (420).
5. Item of seating furniture (410) according to one of the foregoing claims,
   characterised in that
   the first pivot axis (401) is defined by a hinge means that is fastened to the frame (428) of the main segment (420) or to the base frame of the item of furniture.
6. Item of seating furniture (410) according to one of the foregoing claims,
   characterised in that
   the connecting member (480) has an elbowed or bent form.
7. Item of seating furniture (410) according to one of the foregoing claims,
   characterised in that
   a rigid forced guidance member (482) is provided, which

   - is hinged to the main segment (420) or to a base frame of the item of seating furniture and can pivot about a third swivel axis (403) which is in a fixed position with respect to the main segment (420) or to the base frame of the seating furniture, and

   - is hinged to the leg segment (440) and can pivot about a fourth swivel axis (404) which is in a fixed position with respect to the leg segment (440).
8. Item of seating furniture (410) according to one of the foregoing claims, characterised in that
   the second and/or fourth pivot axis (404) is formed by a hinge means that is provided on a cantilever arm (444) extending from a lower side of the leg segment (440) downwards when in the functioning position.
9. Item of seating furniture according to one of Claims 7 or 8,
   characterised in that

   - the third pivot axis (403) is arranged behind the first pivot axis (401),

   - the connecting member (480) pivots through an angle between 95° and 150° when changing between the stowed position and the functioning position, and

   - the forced guidance member (482) pivots through an angle between 130° and 180° when changing between the stowed position and the functioning position.
10. Item of seating furniture according to one of Claims 7 to 9,
    characterised in that

    - the distance between the third pivot axis (403) and the fourth pivot axis (404) is larger by a factor of between 1.5 and 1.9 than the distance between the first pivot axis (401) and the third pivot axis (403),

    - the distance between the first pivot axis (401) and the second pivot axis (402) is larger by a factor of between 2.9 and 3.3 than the distance between the first pivot axis (401) and the third pivot axis (403), and

    - the distance between the second pivot axis (402) and the fourth pivot axis (404) is larger by a factor of between 2.4 and 2.8 than the distance between the first pivot axis (401) and the third pivot axis (403).
11. Item of seating furniture according to one of Claims 7 to 10,
    characterised in that
    the first, second, third and fourth pivot axes (401, 402, 403, 404) are arranged in such a way that the direction in which the connecting member (480) extends and the direction in which the forced guidance member (482) extends, always encloses an angle > 15° when changing from the stowed position to the functioning position of the leg segment (440).
12. Item of seating furniture according to one of the foregoing claims,
    characterised by
    a backrest segment that can pivot with respect to the main segment about a backrest axis, whereby the backrest segment is operationally coupled to the leg segment by means of coupling members in such a way that each relative position of the backrest segment with respect to the main segment or to a base frame is associated with a relative positioning of the leg segment with respect to the main segment or base frame.
13. Item of seating furniture according to one of the foregoing claims,
    characterised in that
    at least two rigid control members are provided each of which incorporates a first hinge section the position of which can be changed by means of an electric motor, and which are attached through a second hinge section each to the leg segment and/or to a rigid connecting member between the main segment and the leg segment and/or to a translatively movable carriage.
14. Item of seating furniture according to one of the foregoing claims,
    characterised in that

    - a rotary body is provided constructed in such a way that it can rotate about a rotary body axis that is in a fixed position with respect to the main segment or to a base frame of the item of furniture,

    - at least one rigid control member is provided, which is attached through a first hinge section to the rotary body and which is also attached through a second hinge section to the leg segment and/or to a rigid connecting member between the main segment and leg segment and/or to a carriage capable of translative movement and/or to an auxiliary member for indirect movement of the leg segment.
15. Item of seating furniture according to Claim 14,
    characterised in that
    at least two rigid control members are provided.
16. Item of seating furniture according to Claim 15,
    characterised in that
    the two control members are attached with each of their second hinge sections to the leg segment.
17. Item of seating furniture according to Claim 16,
    characterised in that

    - a first control member is attached through its second hinge section to the connecting member, and

    - a second control member is attached through its second hinge section to the leg segment.
18. Item of seating furniture according to one of Claims 14 to 17,
    characterised in that

    - the axis of the rotary body has an approximately vertical alignment.
19. Item of seating furniture according to one of Claims 14 to 18,
    characterised in that
    the rotary body is located underneath the seat surface of the main segment.
20. Item of seating furniture according to one of Claims 14 to 19,
    characterised in that
    the rotary body is operationally coupled to an electric motor that is constructed to turn the rotary body about the rotary body axis.
21. Item of seating furniture according to Claim 20,
    characterised in that
    the rotary body and the electric motor are constructed as a joint, integral unit, whereby this integral unit incorporates connecting sections for fixing to the main segment and/or to a base frame of the item of seating furniture.
22. Item of seating furniture according to one of Claims 14 to 21,
    characterised in that
    the rotary body is operationally coupled to a manually operable handle constructed to turn the rotary body about the rotary body axis.
23. Item of seating furniture according to one of Claims 14 to 22,
    characterised in that
    the rotary body, when rotated to a position in which the leg segment is arranged in its functioning position and/or when rotated to a position in which the leg segment is in its stowed position, is adjacent to a stop that provides at least an indirect limit to the rotary movement.
24. Item of seating furniture according to Claim 23,
    characterised in that
    the rotary body and the first control member and/or the second control member are constructed and arranged in such a way that when the leg segment is in its functioning position a force acting on the first or second control member generates a torque pressing the rotary body against the stop.
25. Item of seating furniture according to one of Claims 14 to 24,
    characterised by
    a backrest segment that can pivot with respect to the main segment about a backrest axis, whereby the backrest segment is operationally coupled by a means of coupling to the rotary body in such a way that each relative position of the backrest segment with respect to the main segment or to a base frame is associated with a rotary position of the rotary body.
26. Item of seating furniture (410) according to one of the foregoing claims,
    characterised in that
    the end segment (460) is constructed in such a way that it can pivot about an end segment axis (406) with respect to the leg segment (440), whereby the end segment pivot axis (406) is in a fixed position relative to the end segment (460) and relative to the leg segment (440).
27. Item of seating furniture (410) according to one of the foregoing claims,
    characterised in that
    the end segment (460) when in its stowed position is rotated with respect to the leg segment (440) by an angle between about 50° and 130°, and/or is approximately parallel to the main segment (420).
28. Item of seating furniture (410) according to one of the foregoing claims,
    characterised in that
    the first control track (483) and the slider (476, 476a) are matched to one another in such a way that when the leg segment (440) and the end segment (460) are moved from the stowed position into the functioning position

    - during a first phase of movement the leg segment (440) pivots with respect to the main segment (420) by at least 70° in the direction of the functioning position, while the end segment (460) pivots with respect to the leg segment (440) by a maximum of 50° in the direction of the functioning position, and

    - in a second phase of movement, the leg segment (440) and the end segment (460) each reach their functioning position.
29. Item of seating furniture (410) according to one of the foregoing claims,
    characterised in that
    the first control track (483) is provided on the forced guidance member (482), on the connecting member or on the leg segment.
30. Item of seating furniture (410) according to one of the foregoing claims,
    characterised in that
    the auxiliary member (470) comprises a second control section (476, 476b) that is movable along a second control track (480b), whereby the second control track (480b) is favourably provided on the connecting member (480) or on the forced guidance member.
31. Item of seating furniture according to one of the foregoing claims,
    characterised in that
    the auxiliary member is attached to the main segment or to a base frame of the seating furniture by means of an intermediate member with a pivoting attachment to the auxiliary member.
32. Item of seating furniture according to one of the foregoing claims,
    characterised in that
    on the rotary body a first rigid end segment control member is provided, which is attached by a first hinge section to the rotary body and is operationally coupled to the end segment in such a way that a movement of the rotary body causes a relative movement of the end segment with respect to the leg segment.
33. Item of seating furniture according to one of Claims 14 to 32,
    characterised in that
    the first hinge sections of the control member are at least in part

    - hinged to the rotary body at various angular relationships to the axis of the rotary body, and/or

    - hinged to the rotary body at various distances from the axis of the rotary body.
34. Item of seating furniture according to one of the foregoing claims,
    characterised in that
    when the leg segment is in the functioning position

    - a connecting line between the axis of the rotary body and a first attachment point of the first control member encloses an angle of not more than 20° with a main direction of extension of the first control member,

    - a connecting line between the axis of the rotary body and a first attachment point of the second control member encloses an angle of not more than 20° with a main direction of extension of the second control member, and/or

    - a connecting line between the axis of the rotary body and a first attachment point of the first end segment control member encloses an angle of between 60° and 120° with the main direction of extension of the first end segment control member.
35. Item of seating furniture according to one of Claims 32 to 34,
    characterised in that
    the first end segment control member is connected with its second hinge section, in such a way that it can pivot, to a second end segment control member (93; 193; 293; 393), which is attached with its first hinge section to a first end segment control member (92; 192; 292; 392) and with a second hinge section at the end segment (60; 160; 260; 360).
36. Item of seating furniture according to one of Claims 32 to 35,
    characterised in that
    a means of guidance is provided which is in a fixed position with respect to the main segment or to a base frame or to the leg segment, or is forcibly guided according to the relative positioning of the leg segment with respect to the main segment, whereby the first end segment control member is mounted on this means of guidance and is able to slide.
37. Item of seating furniture according to one of the foregoing claims,
    characterised by
    a base frame, whereby the main segment is movable with respect to the base frame.
38. Fitting for an item of seating furniture according to one of the foregoing claims, whereby

    - the fitting comprises first means of fastening for fixing to a main segment or to a base frame of an item of seating furniture and second means of fastening for fixing to a leg segment of an item of seating furniture, and

    - the second means of fastening for fixing the leg segment can change its position relative to the first means of fastening for attaching the main segment between a stowed position and a functioning position, in such a way that the leg segment

    - is located when in its functioning position in front of a front edge of the main segment, and is aligned in such a way that the support surface is essentially horizontal, and

    - is located when in its stowed position at least in part underneath the main segment, and is tilted with respect to the functioning position,

    and whereby
    the fitting comprises a rigid connecting member, whereby the rigid connecting member

    - is attached to the first fastening section in such a way that it can pivot about a first pivoting axis that is in a fixed position with respect to the first fastening section, and

    - is attached to the second fastening section such that it can pivot about a second pivoting axis that is in a fixed position with respect to the second fastening section,

    characterised in that

    - means of forced guidance are provided through which every position of the connecting member relative to the first means of fastening for fixing the position of the main segment or to the base frame is associated with a defined position of the connecting member relative to the second means of fastening for fixing the position of the leg segment,

    - the fitting by which an end segment is attached is constructed in such a way that the end segment can move relative to the means of fastening for fixing the position of the leg segment between a stowed position and a functioning position, and in such a way that the end segment, when in its functioning position, is located in front of the front edge of the leg segment, and

    - a slider system with a slider is provided

    - that is operationally coupled through a rigid auxiliary member to the end segment, and

    - that is constructed as a first control section for interaction with a first control track, whose position is forcibly coupled to the position of the means of fastening for fixing the position of the leg segment.

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