巴西专利BR112012031880B1 CHAIR

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专利摘要:
chair. the present invention relates to a chair (1), which comprises a support element (2), a movement mechanism (3) and a frame (4), the movement mechanics comprising a torsion element (11 ), which supports the back part (9) and controls the inclination of the back part (9), the back part (9) of the support element (2) being connected, exclusively, above a lordosis support (19) with torsion element (11) and the supporting element (2) compensates for a relative deformation by a relative movement between the back region (6) and the seat region (5), which occurs in the case of a modification of the chair load (1) by the person seated.
公开号:BR112012031880B1
申请号:R112012031880-2
申请日:2011-06-14
公开日:2020-08-11
发明作者:Claudia Plikat；Johann Burkhard Schmitz；Carola E. M. Zwick；Roland R. O. Zwick
申请人:Claudia Plikat；Johann Burkhard Schmitz；Carola E. M. Zwick；Roland R. O. Zwick；
IPC主号:

专利说明:

[001] The present invention relates to a chair that comprises a support element, movement mechanics and a frame.
[002] From document DE 1 282 262 A1, a chair with a continuous support element is known, which is formed as a seat shell, the region of the back of the seat shell being supported in a region of lordosis by a double tube centrally arranged.
[003] From EP 0 049 310 B1, a chair is known with a continuous support element, whose back region is supported and cushioned by arms arranged next to the support element.
[004] From EP 1 946 676 A1 is known a chair with a continuous support element, which is formed as a seat shell, the back region being supported and cushioned in a lordosis region by two support arms arranged laterally and symmetrically.
[005] From EP 2 110 050 A1, a chair is known, which has a continuous support, which comprises two L-shaped support sleepers, which support a lining, the support being supported in a transition region and in a back region by a rigid back element, which is integrated in the support.
[006] The objective of the invention is to develop a chair with a light, continuous support element, which features higher seating comfort and a lightweight construction.
[007] This objective is solved from the characteristics of the preamble of claim 1, by the identifying characteristics of claim 1. In the secondary claims, advantageous and convenient improvements are indicated.
[008] In the chair according to the invention, the movement mechanics comprises a twisting element, which supports the back part and controls the inclination of the back part, the back part of the support element being connected with the twisting element exclusively above the lordosis support. By supporting the back region of the support element through a torsion element and the joining of the back region to the torsion element, a lower stability of the back region of the support element is required, since it is supported and stabilized in its upper back region by the torsion element. This is particularly of great advantage because the torsional forces are introduced by the user exactly in that region of the upper back, particularly through the shoulder blades, when the user sitting in the chair bends to the right or to the left. , for example, to access a file positioned behind it. Due to the local proximity between the points of introduction of force in the region of the shoulder blades of the user seated on the support element of the chair and the or points of junction of the torsion element in the upper half of the back region of the support means, it is extensively avoided a tension formation on the back element, so that it can be formed as an element of light construction. Due to this lightweight construction, which allows the special arrangement and connection of the torsion element, it is also possible to guarantee the necessary relative movement, which occurs in the event of a change in the seat load by the seated user, by an elastic deformation of the support between the back region and the seat region, without having to take complex technical measures to that end.
[009] According to the invention, in the chair the region of the back can be tilted and / or twisted from a vertical seat position to a seat position tilted back, being a force introduced by a person sitting on the element support, which causes a flexion of the support element and / or a torsion of the back part in relation to the seat part, suffers a counter force by the movement mechanics, and the movement mechanics is connected with the support element in the region on the back, above a lordosis support, particularly at a central junction point or, particularly, at two lateral junction points and the movement mechanics is connected, particularly, fixedly, with the support element in the region of seat or is connected, in particular, through two axes of rotation arranged in the seat region. By such a connection of the support element, which supports the seated person, the requirement for the mechanics of movement to allow the person seated to rotate the trunk can be optimally matched. The chair can optimally follow the rotation of the trunk with its back, since the mechanics of movement are formed in a similar way to the person's spine in the region of the transition part and in the lower half of the back as a twistable structure and located on the plane of symmetry.
[0010] The invention also provides for the torsion element to be equipped with a torsion bar, which extends upwards, even beyond the lordosis support, in a plane of symmetry of the chair, positioned vertically in space. Thus, the torsion bar is optimally oriented to asymmetrical loads in the back region of the support element, which can be generated by a rotation of the trunk of a person sitting on the chair.
[0011] According to the invention, an elastic deformation of the support element between the back region and the seat region is achieved, particularly also by a waiver of a connection of the support element to the mechanics of movement in a cos region - lower and in a transition region.
[0012] According to the invention, the support element comprises, according to a first variant of the modality, two support beams folded in the shape of an L and a lining, the lining being fixed between the support beams. Such a construction simply leads to a light construction of the supporting element.
[0013] The invention also provides that the movement mechanics are arranged between the frame and the support element, the movement mechanics supporting both the back part of the support element as well as the seat part of the support element, being that the inclination of the back part can be controlled an inclination of the seat part and an inclination of the back part, depending on the forces with which a seated person acts on the chair, being that the inclination of the seat part and the inclination of the back part is controlled independently of each other and the inclination of the back part between a starting position and an end position increases more strongly than the inclination of the seat part. Particularly high seating comfort is achieved by such movement mechanics.
[0014] According to another variant of the modality, the invention provides that the support element is formed as a seat shell folded in the shape of an L. A seat shell formed in this way can be produced in a particularly simple manner in production technique , for example, as a die-cast part.
[0015] In a simple modality variant, the invention provides that the support element is rigidly fixed to the frame and only one console is supported by the torsion bar, which surrounds the transition region and the back region of the support element. A chair of this type offers particularly simple movement mechanics and, for this reason, it can be produced in a simple way and therefore at a low cost.
[0016] In addition, the invention provides for a parallel extension of the two axes of rotation arranged in the seating region, with the axes of rotation orthogonally traversing a plane of symmetry positioned vertically in space. By mounting the seat part on the axes of rotation, the seat part is stabilized by the movement mechanics and defines the movement profile of the seat part.
[0017] According to the invention, the counterforce, which is generated by the mechanics of movement to compensate the force introduced by a seated person, makes up at least 50% and, particularly, at least 70% of a total necessary counterforce, being that the remaining counter-force is generated by the supporting element that is deforming. As a result, the support element is strongly discharged and can therefore be configured in a correspondingly light and flexible manner.
[0018] In addition, the invention provides that the movement mechanics is arranged between the frame and the support element, and the movement mechanics comprises a first reverse link, a second inverter link and a basic body, being that the second inverter link is pivotally connected in the basic body and pivotally in an anterior half of the seat part, the first inverter link being pivotally connected in the basic body, in a pivotal way, in one half posterior of the seat part and comprises the torsion element, which is connected with the back region, above a lordosis support By a junction of this type and a formation, in each case, specularly symmetrical and rigid of the two inverter links to the plane of symmetry, the slope behavior and the torsion behavior of the chain can be accomplished with few structural elements.
[0019] Alternatively, the invention also provides that a movement mechanics arranged between the frame and the support element is equipped with a backing element, which is particularly elastically deformable, the backing element being arranged between the frame and the seat part and fixes the seat part and the mechanics of movement comprise an elastically deformable inverter link, which comprises the torsion element and is connected with the frame and the back region, above the lordosis support. Due to this configuration of the chair, even without movement mechanics connected with swivel joints, the chair has the desired inclination behavior and the desired torsion behavior.
[0020] According to the invention, the support element also comprises two spacer bars, the two support members being maintained at a defined distance, both by the two spacer bars, which connect free ends of the support members, as well as they are maintained at that defined distance, parallel to each other, by the mechanics of movement. By such a structure of the support element as a closed frame, it is possible to fix the covering of the same with high tension forces, and the support element is also reinforced by the mechanics of movement or by its connection to the back element.
[0021] According to the invention, it is provided to dampen the movement mechanics by at least one spring mechanism or a spring element. This makes it possible, in particular, on an adjustable spring mechanism or an exchangeable spring element, to adjust the tilt and / or twist behavior of the chair to the person using the chair.
[0022] According to the invention it is provided that the seat part is connected by a support on four points at four points of connection with the mechanics of movement and that the back part is connected, particularly, by a support on two points , particularly, on support sleepers with an upper half of the back, particularly at two points of connection with the mechanics of movement. By a four-point connection of the seat part and a rigid coupling of the left and right half of the movement mechanics, divided by the plane of symmetry, the seat part is fixed for a tilting movement and an undesirable staggering of the seat part is prevented. seat around a stagger axis located on the plane of symmetry. A two-point connection at the back offers points at which forces are introduced by the user of the chair, optimal support of the back by movement mechanics.
[0023] Finally, it is envisaged that the back part will be formed with a first flexing device, with the first flexing device being a lower section adjacent to the transition part of the back part and an upper section adjacent to the lower section of the part the backs are connected in a displaceable way, the first bending device being disposed below an articulated joint region, in which the torsion element is connected with the back part, the torsion element comprising a second flexion, whereby by the second flexing device a lower section of the torsion element, jointly joined in a basic body of movement mechanics and an upper section of the torsion element, joined jointly in the back element, are connected in a displaceable way, being that the second flexing device is formed above the lordosis support. By complementing this type of chair according to the invention by two flexing devices, the chair can be complemented by another function, while maintaining its described properties. This additional function is provided, in particular, for chairs with a high backrest, which reaches the neck region or the head region of a person sitting on the chair. In this case, the upper section of the back element falls forward, due to the special arrangement of the flexing devices, when a person sitting in the chair leans back against the back and thus assists the person sitting in maintain an approximately horizontal axis of view when the person wishes, for example, to continue a monitor in the field of view, even when reclining backwards.
[0024] Further details of the invention are described in the drawing by way of example examples shown schematically.
[0025] In this case, they show:
[0026] Figures 1 and 2: a side view and a rear view of a first variant of a chair according to the invention;
[0027] Figures 3 and 4: a side view and a rear view of a second variant of a chair according to the invention;
[0028] Figures 5 and 6: a side view and a rear view of a third variant of a chair according to the invention;
[0029] Figures 7 and 8: a side view and a rear view of a fourth variant of a chair according to the invention;
[0030] Figures 9 and 10: a side view and a rear view of a fifth variant of a chair according to the invention;
[0031] Figures 11 and 12: a side view and a rear view of a sixth variant of a chair according to the invention;
[0032] Figures 13 - 15: in each case, an oblique view of the first, third and fifth modality of modality;
[0033] Figure 16: a perspective representation of the first modality variant with constructed details;
[0034] Figures 17, 18: other views of the chair shown in Figure 16, with the frame removed;
[0035] Figures 19-21: modification of the first modality variant, in two side views and one rear view;
[0036] Figures 22 - 24: modifications of the second modality of modality, in two side views and one rear view;
[0037] Figures 25 - 27: modifications of the third modality variant, in two side views and one rear view;
[0038] Figures 28 - 30: modifications of the fourth modality variant, in two side views and one rear view;
[0039] Figures 31 - 33: modifications of the fifth modality variant, in two side views and one rear view;
[0040] Figures 34 - 36: modifications of the sixth modality variant, in two side views and one rear view.
[0041] In Figure 1, a first variant of a chair 1 is shown in side view. Chair 1 comprises a continuous support element 2, movement mechanics 3 and a frame 4. Support element 2 comprises a region seat 5, a back region 6 and a transition region 7. In this case, the seat region 5 forms a seat part 8m back region 6, a back part 9 and the transition region 7 a transition part 10 of the support element 2. The movement mechanics 3 comprises a twisting element 11 and two front levers 12 and 13, the second front lever 12 being covered by the first front lever 12 in the representation of Figure 1.0 twisting element 11 is formed as the first inverter link 14, which is in a rotatingly articulated connection around a rotation axis with the seat part 8 and rotatingly articulated around a rotation axis with frame 4. The two front levers12, 13 are outside as a component in a part as a second inverter link 38. In addition, the twisting element 11 is connected at two fixing points 17 and 18 with the back part 9. The fixing points 17 and 18, seen in the y direction, they are located above a lordosis support 19 of the back part 9, in an upper half 20 of the back part 9. A central part M11 of the torsion element is formed as a torsion bar 21, which extends in a plane of symmetry 22 of chair 1, positioned vertically in space. The plane of symmetry 22 is also called the xy plane and is positioned vertically on the drawing plane of Figure 2, which shows chair 1 in an arrow direction II indicated in Figure 1. The frame is formed as a fixed frame. According to a variant of the modality not shown, it is intended to make the frame 4 as a revolving frame with rollers, to use the chair, for example, as an office chair. A spring element 23 is arranged between the support element 2 and the frame 3, which holds the support element 2 in the resting position R1 shown in Figure 2 and partially compensates for a load on the support element 2 by a person sitting on the support element 2 shown schematically, and allows limited modification of the position of the support element 2 in relation to the frame 3, at a correspondingly high load. The movement mechanics 3 described above are configured in such a way that the inclination of the seat part and the inclination of the back part occur independently of each other and the inclination of the back part 9 between an initial position 9 - 1 shown in Figure 1 and an end position 9-2 indicated with dashed lines increases more strongly than the inclination of the seat part 8 between an initial position 8 - 1 shown in Figure 1 and an end position 89-2 indicated with dashed lines. A relative movement, which occurs between the seat part 8 and the back part 9, when they move from their initial positions 8-1 and 9 - 1 to their final positions 8 - 2 and 9-2, is compensated for by a deformation of the transition part 10, so that, despite the continuous support element 2, a so-called mechanical synchronization 24 is carried out on chair 1. The torsional properties of the torsion element are important when the person sitting on the chair 1 does not lean centrally in the region of the plane of symmetry 22 at the back 9, but loads it laterally, for example, at a load point 25. Such a load of the support element 2 leads to deformation of the support element. support 2, namely, a torsion between the seat part 8 and the back part 9. This torsion of the support element 2 is limited by the torsion element 11 and, in particular, by the torsion bar 21 thereof, once that likewise forms a counter-force, which is introduced at the back 9 through it is from the fixing points 17 and 18, and for that purpose, the twisting element 11 rests on the basic frame 4. Such limited twisting of the supporting element 2 is possible, regardless of the inclination of the back part 9 of the support element 2, at each position and inclination between the initial position 9 - 1 and the final position 9 - 2. The torsion bar 21 extends in the y-up direction, even beyond the lordosis support 19. The support element of the first modality variant shown in Figures 1 and 2 comprises two L-shaped support struts 26 and 27 and a liner 28, which is fixed between the support struts 26 and 27. The twisting element 11, as well as the levers 12 and 13 of the movement mechanics 3 are attached, in each case, to the support members 26 and 27. In extension of the torsion bar 21, the torsion element 11 is formed as horns, which branch the bar torque 21 at upper free ends 26a and 27a of support members 26 or 27.
[0042] In Figure 13, chair 1 is shown complementarily, in an oblique view, obliquely from behind. In this view it is visible how the two levers 12 and 13 form the second inverter link 38 by an arc 37 that connects them. Therefore, the movement mechanics 3 substantially comprises the first inverter link 14, the second inverter link 38 and a basic body 41. The second inverter link 38 has, like the first inverter link 14, an axis of rotation 39 and an axis of rotation 40, all four axes of rotation 15, 16, 39, 40 of movement mechanics 3 extending parallel to each other. The first inverter link 14 is not only connected in the region of the axis of rotation 15 to the support element 2, but is also connected with it at the fixing points 17, 18 with the support members 26, 27 of the same. Free rotation of the inverter links 14, 38 around the axis of rotation 16, 40 is dampened and limited by a spring mechanism 42, which is integrated in the basic body 41.
[0043] In Figures 3 and 4, a second variant of the modality of a chair 1 is shown, in side and rear views. With respect to this second modality variant, reference is made initially to the description of the first modality variant shown in Figures 1 and 2. Correspondingly, the comparable components are designated with the reference signs used in Figures 1 and 2. Unlike the first modality variant, the movement mechanics 3 substantially comprises only one twisting element 11, which is rigidly fixed between the seat part 8 of the supporting element 2 and the frame 4. That twisting element 11 comprises, like the torsion element of the first modality variant, a torsion bar 2, which is divided into horns 28, which are attached to the free ends 26a and 27a of the support members 26 and 27. In addition to its torsional properties, the torsion element 11 is still formed in an elastic way of flexing, thereby cushioning the back part 9 of the support element 2, between the initial position 9 - 1 and the final position 9-2, send which, for that purpose, the transition region 7 of the support element 2 is elastically deformed. The movement mechanics also comprises an abutment element 48, with which the two support members 26, 27 are maintained at a previously defined distance from each other.
[0044] Figures 5 and 6 show a third modality variant of a chair 1. With respect to this third modality variant, reference is made initially to the description of the first modality variant shown in Figures 1 and 2. Correspondingly, the comparable components are designated with the reference signs used in Figures 1 and 2. Unlike the first modality variant, in the third modality variant, the support element 2 does not comprise support sleepers or cladding, but a seat shell 32 folded in L-shape, which is molded, for example, of plastic material. The seat shell 32 is elastically deformable, particularly in its transition region 7. Similarly to Figure 13, in Figure 14 an oblique view of chair 31 shown in Figures 5 and 6 is shown. reference is made here to the description in Figure 13. The first inverter link 14 is formed in a way comparable to the first inverter link of the first mode variant and connected and two junction points with the support element 2, but instead of in the crossbars support points, the junction points 17, 18 are located in the seat shell 32.
[0045] Figures 7 and 8 show a fourth modality variant of a chair 33. With respect to this fourth modality variant, reference is made initially to the description of the first modality variant shown in Figures 1 and 2. Correspondingly, the comparable components are designated with the reference signs used in Figures 1 and 2. Unlike the first modality variant, in the fourth modality variant, the support element 2 does not comprise support sleepers or cladding, but a seat shell 32 folded in L-shape, which is molded, for example, of plastic material. The seat shell 32 is elastically deformable, particularly in its transition region 7. Furthermore, unlike the movement mechanics of the first modality variant, the movement mechanics 3 of the fourth modality variant comprises only one twisting element 11, which is rigidly fixed between the seat part 8 of the support element 2 and the frame 4. That torsion element 11 comprises, like the torsion element of the first embodiment, a torsion bar 2, which divides like horns 29, and is attached to the free ends 26a and 27a of the support members 26 and 27. In addition to its torsional properties, the torsion element 11 is still formed in an elastic way of flexing and thus cushions the back part 9 of the support element 2, between the initial position 9 - 1 and the final position 9-2, for which purpose, the transition region 7 of the support element 2 is elastically deformed.
[0046] Figures 9 and 10 show a fifth modality variant of a chair 34. With respect to this fifth modality variant, initially reference is made to the description of the first modality variant shown in Figures 1 and 2. Correspondingly, the comparable components are designated with the reference signs used in Figures 1 and 2. Unlike the first modality variant, in the fifth modality variant, the support element 2 does not comprise support sleepers or cladding, but a seat shell 32 folded in L-shape, which is molded, for example, of plastic material. The seat shell 32 is elastically deformable, particularly in its transition region 7. In addition, the seat shell 32 is not connected via horns of the torsion element 11, but is centrally fixed in the region of the symmetries plane 22 in an extension of the torsion bar 21. Analogously to Figure 13 and Figure 14, in Figure 15 an oblique view is shown on chair 34 shown in Figures 9 and 10. Correspondingly, reference is made here to the description of Figure 13 or 14. The first inverter link 14, unlike the first inverter link of the first and the third modality of modality, does not branch like a horn, but only has a central junction point 18, in which the first inverter link 14 is connected with the seat shell 32 of the chair 34.
[0047] Figures 11 and 12 show a sixth modality variant of a chair 36. With respect to this sixth modality variant, reference is made initially to the description of the first modality variant shown in Figures 1 and 2. Correspondingly, the comparable components are designated with the reference signs used in Figures 1 and 2. Unlike the first modality variant, in the sixth modality variant, the support element 2 does not comprise support sleepers or cladding, but a seat shell 32 folded in L-shape, which is molded, for example, of plastic material. The seat shell 32 is elastically deformable, particularly in its transition region 7. Furthermore, unlike the movement mechanics of the first modality variant, the movement mechanics 3 of the sixth modality variant comprises only one twisting element 11, which is rigidly fixed between the seat part 8 of the support element 2 and the frame 4. The seat shell 32 is not connected via horns of the torsion element, but is centrally fixed in the region of the plane of symmetry 22, in an extension 35 of the torsion bar 21. In addition to its torsional properties, the torsion element 32 is still formed in an elastic way of bending and thus cushions the back part 9 of the support element 2, between the initial position 9 - 1 and the final position 9-2, for which purpose, the transition region 7 of the support element 2 is elastically deformed.
[0048] In Figure 16, chair 1 described as the first modality of modality, with reference to the schematic representations of Figures 12 and 13, is represented with constructive details, with the frame 4 being shown without predicted rollers. Also a coat28 is indicated only as a shaded area, to obtain visibility. The support element 2 comprises, in addition to the support members 26, 27 and the cladding 28, also two spacer bars 43, 44 shown schematically. The spacer bars 43, 44 keep the two support members 26, 27 at their free ends 26a, 26b and 27a, 27b, at a defined distance a43, a44 (see Figure 18) and thus guarantee a high load capacity of the cladding 28. A high load capacity of cladding 28 is further guaranteed by the connection of the support members 26, 27 to the movement mechanics 3. In the seat region 5, the support member 27 is connected via a first connection point junction C in the first inverter link 14 and through a second junction point D, which is hidden, in the second inverter link 38. In addition, the fixing points 17, 18, with which the twisting element 11, which forks , passes to the support beams 26, 27, form two other junction points E and F. By a four point support of this type of the seat region in a dynamic sitting act, a twisting of the region is safely avoided seat 5 or a stagger from the seat region 5 around an axis wobbly wheel (see Figure 2), located on the plane of symmetry 22 and extended in the x direction, and ensuring that the back 9, with a corresponding load by the seated person, is twisted in relation to the seat region 5. By an approximately X-shaped geometry of the torsion element 11 or the first inverter link 14, the movement mechanics 3 give the chair 1 a high stability, while at the same time allowing twisting in the manner of torsion between the upper half 20 of the the back part 9 and the seat part, the torsion of which is made possible by an elastic deformation of the torsion element 11, the support members 26, 27 and the liner 28. Torsion occurs, particularly, in the region of the lordosis support 19e of the transition part 10. By the rotating junction of the first inverter link 14 in the basic body 41 of the movement mechanics 3, the twisting element 11, with a corresponding load by the person seated, allows the twisting to overlap with the twisting way tilt movement of the back part 9 indicated in Figure 2 by positions 9-1 and 9 - 1. The seat part 8 is connected in its anterior half 8a, which is close to the spacer element 44, with the second inverter link 38, and in its posterior half 8b, which is adjacent to the anterior half 8a for the spacer element 43, with the first inverter link 14. With this, the support members 26, 27 are guided with two parallelogram guides P1 and P2, arranged symmetrically to the plane of symmetry 22, in the basic body 41, and the parallelogram guides P1, P2 are formed, substantially, by the two inverter links 14 and 38 and work synchronously.
[0049] In Figures 17 and 18 the chair is shown in lower perspective views, with the representation of the frame, the spacer bars, the covering and the spring mechanism having been dispensed with. In the basic body 41, two mounting spaces 45, 46 can be seen for the spring mechanism (not shown). However, the spring mechanism not shown has an exclusive influence on the tilt behavior of chair 1. The torsional behavior of chair 1 is not influenced by the spring mechanism, but only by the torsion element 11. In Figure 17 it can be completely identified as the seat part 8 is suspended by means of a four point support 47 the movement mechanics 3 through the junction points A to D. In addition, it can be identified as the back part 9, which is shown only with support crosspieces 26, 27 and without coating and spacer bar, it is suspended by means of a two-point support 49, through junction points E and F, in movement mechanics 3.
[0050] In Figure 18, the four axes of rotation 15, 16, 39 and 40, which operate in parallel and the four free ends 26a, 26b, 27a, 27b of the two support members 26, 27 are again designated.
[0051] For Figures 16 to 18, reference is also made to the description of Figures 1, 2 and 13, and the reference signs cited there are also partially registered in Figures 16 to 18.
[0052] An overlap of tilt and torsion movement is also possible, when the first inverter link 14 is formed in □ or upside down, in the form of □, as shown in the fifth and sixth modality variant.
[0053] In Figures 19 to 36 modifications are shown for the six modality variants shown in Figures 1 to 12, in each case, in two side views and one rear view. With regard to the basic structure and basic operating mode of the modifications shown in Figures 19 to 36, reference is made, correspondingly, to the description for Figures 1, 2 and 3, 4 and 5, and 5, 6 and 7 , 8 and 9, 10 and 11, 12. Unlike the chairs shown in Figures 1 to 12, in all six chairs 1a shown in Figures 19 to 36 (see Figures 19 to 21), 30a (see Figures 22 to 24), 31a (see Figures 25 to 27), 33a (see Figures 28 to 30), 34a (see Figures 31 to 33) and 36a (see Figures 34 to 36), the back part 9 comprises a first flexing device 50, shown symbolically, and the twisting element 11, a second bending device 51, represented symbolically, being that by the first deflection device 50, a lower section 52 of the back part 9, adjacent to the transition part 10, and an upper section 53 of the back part 9, adjacent to bottom section 52, are connected in a displaceable manner. In that case, the first bending device 50 is disposed below a joint region 54, in which the torsion element 11 is connected with the back part 9. The second deflection device 51 formed in the torsion element 11 comprises a lower section 55 of the torsion element 11 connected with a basic body 41 of the movement mechanics 3 and an upper section 56 of the torsion element 11, connected with the back element 9 in the junction region 54, the two sections 55, 56 being movably connected by the second flexing devices. In the junction region 54, the upper section 53 of the back 9 and the upper section 56 of the twisting element 11 are connected to each other. The second flexing device 51, and thus also the first flexing device 50, are formed above the lordosis support 19 of chair 1a, 30a, 31a, 33a, 34a or 36a. In that case, the second deflection device 51 is arranged below the first deflection device 50.
[0054] The first flexion device 50 is preferably formed as a flexion zone B50, which allows a kind of flexion formation between the lower section 52 and the upper section 53 of the back 9, depending on in which position is chair 1a, 30a, 31a, 33a, 34a or 36a. In a position and rest R1, as shown in Figures 19, 22, 25, 28, 31 and 34, the lower section 52 and the upper section 53 of the back 9 have a first opening angle with respect to each other ot-R1, the opening angle ot-R1 being located on the plane of symmetry 22 already described in relation to the individual modality variants and is measured between a surface 52a of the lower section 52, which presents contact with a seated person, and a surface 53a of the upper section 53, which makes contact with a seated person. The resting position is assumed by chair 1a, 30a, 31 a, 34a or 36a, when it is unloaded or when a person is sitting in such a way on the chair that the person exerts no pressure or only a little pressure on the back member 9 thereof. In a reclined position R2, as shown in Figures 20, 23, 29, 32 and 35, the lower section 52 and the upper section 53 of the back 9 have a second angle of opening ot-R2 to each other, being that the opening angle ot-R2 is also located in the plane of symmetry 22 mentioned. The two flexing devices 50 and 51 of the back 9 and the torsion element 11, which are in interaction, in the transition from position R1 to position R2 cause a reduction in the opening angle from the value ot-R1 to the value ot -R2. In this way, the position that the two sections 52,53 of the back part assume in relation to each other is modified, in the manner of a lid that closes slightly. The upper section 53 of the coast part 9 moves in relation to the lower section 52 of the back part in the direction of the arrow x. That is, the upper section 53 of the back 9 moves during the tilting movement, which chair 1a, 30a, 31a, 33a, 34a or 36a performs, when a person sitting on chair 1a, 30a, 31a, 33a, 34a or 36a reclines back against the back part 9, in relation to the lower part 52 of the back part 9, in which case it bends forward. This movement, which is in the opposite direction to the tilt movement, which is directed in the direction of the arrow x1 and y ', stabilizes, depending on the formation and the size of the upper section 53 of the back 9 the person's neck and head seated on chair 1a, 30a, 31a, 33a, 34a or 36a and allows the person to maintain an ergonomically desirable axis of vision assumed in the upright sitting position when leaning back and in the tilted back position, since the upper section 53 of the back 9, on whose surface 53a the head of the person seated on the chair rests, slopes to a lesser extent between position R1 and position R1 than the lower section 52 of the back 9, whose surface 52 leans against the person sitting on the chair with his trunk. In that case, the second bending device 51 is arranged in the two positions R1 and R2 of chair 1a, 30a, 31a, 33a, 34a or 36a below the first bending device 50.
[0055] The second flexion device 51 is also preferably formed as a flexion zone B51, which allows a kind of flexion formation between the lower section 55 and the upper section 56 of the torsion bar 11. The formation flexion is controlled by movement mechanics 3, whose component is the flexing device 51. In a resting position R1, as shown in Figures 19, 22, 25, 28,31 and 34, the lower section 55 and the upper section 56 of the torsion bar 11 has a first opening angle β-R1 in relation to each other, the opening angle β-R1 being located or foot measured in the plane of symmetry 22 already described in the individual modality variants. In an inclined backward position R2, as shown in Figures 20, 23, 26, 29, 32 and 35, the lower section 55 and upper section 56 of the twisting element 11 have a second opening angle β-R2 a to the other, the opening angle β-R2 is also measured in the plane of symmetry 22. Because the upper section 5 when switching from position R1 to position R2 is flexed forward in the x direction, the opening angle value is reduced from β-R1 to β-R2. Therefore, the upper section 56 of the torsion element 11 moves forward in relation to the lower section 55 of the torsion element 11, when a person sitting on chair 1a, 30a, 31a, 33a, 34a or 36a reclines back. The two bending devices 50 and 51 therefore operate synchronously - due to the connection of their upper sections 53 and 56 in the junction region 54 - so that a closing movement of the movement mechanics 3, to which the device belongs. flexion 51 and the upper section 56 of the torsion element 11, is transmitted to the back 9 of the support element 2. Correspondingly, at the exit from position R2 to position R1, an opening movement of the lower and upper section 55 occurs again . 56 of the movement mechanics 3 and therefore, due to the coupling, also an opening movement of the lower section 52 and the upper section 53 of the back part 9 again.
[0056] For the first flexion device 50, it is planned to have it approximately at a height of the upper dorsal vertebra of a person sitting on the chair 1a, 30a, 31a, 33a, 34a or 36a, to optimally support the neck and its head in a reclined sitting position. Correspondingly, the back part in the modifications shown in Figures 19 to 36 is dimensioned in such a way that the upper section 53 of the back part 9 is at the height of a neck region or a neck and head region of a seated person on the chair.
[0057] In the modifications shown in Figures 19 to 21 and 22 to 24 of the first and second modality of modality, the first bending device 50 is technically performed on the two support beams 26, 27 by, in each case, a bending zone B50 formed as an elastic region or alternatively formed by, in each case, an articulated element. The coating 28 follows the movement predetermined by the support crosspieces 26, 27, without further adaptation.
[0058] In the modifications shown in Figures 25 to 27, 28 to 30, 31 to 33 and 34 to 36 of the third to sixth variant of the modality, the first flexing device 50 developed in the support element 2 is integrated into the seat shell and extended in horizontal alignment over the back part 9. The first flexing device 50 is formed in each case by a flexion zone B50 formed as an elastic region or alternatively by an articulated element.
[0059] In the modifications shown in Figures 19 to 21, 22 to 24, 25 to 27 and 28 to 30 of the first to fourth modality variant, the second bending device 51 is formed in the twisting element 11 or in the first inverter element 14 , which forms the torsion element 11, below the horns 29, into which the torsion bar 21 branches, to pass to the junction region 54 in the crossbars 26, 27. The second bending device 51 is formed by a zone flexion B51, formed as an elastic region, or, alternatively, as an articulation element. The horns 29 form the upper section 56 of the twisting element 11. The horns 29 are particularly connected in a flat manner with the support members 26, 37.
[0060] In the modifications shown in Figures 31 to 33 and 34 to 36, of the fifth and sixth modality variants, the second bending device 51 is formed in the torsion element 11 or in the first inverter element 14, which forms the torsion element 11, below the central junction region 54, in which the inverter link 14 is connected to the seat shell 32. The second flexion device 51 is formed by a flexion zone B51 formed as an elastic region or, alternatively, by a articulation element.
[0061] The invention is not limited to examples of modality represented or described. On the contrary, it comprises improvements of the invention within the scope of the right to protection claims. LIST OF REFERENCE SIGNS 1 chair, 1st mode variant 1st chair, modification of 1 2 supporting element 3 movement mechanics 4 frame 5 seat region of 2 6 back region of 2 7 transition region of 2 8 seat part of 2 8a front half of 8 8b back half of 8 8-1 start position of 8 8-2 end position of 8 9 back part of 2 9-1 start position of 9 9-2 end position of 9 10 transition part 11 torsion element 12,13 lever 14 first inverter link 15 first axis of rotation 14 16 second axis of rotation 14 17, 18 point of attachment 19 lordosis support 20 upper half of 9 21 torsion bar of 11 22 plane of symmetry or plane xy 23 spring element 24 synchronizing mechanics 25 load point 26, 27 support beam 28 cover 29 horns 30 chair, 2nd. variant of modality 30a chair, modification of 30 31 chair, 3rd. variant of modality 31a chair, modification of 31 32 seat shell 33 chair, 4th. variant of modality 33a chair, modification of 33 34 chair, 5th. variant of modality 34a chair, modification of 34 35 extension of 21 36 chair, 6th. modality variant 36a chair, modification of 36 37 arc between 12 and 13 38 second inverter link 39 axis of rotation of 38 40 axis of rotation of 38 41 basic body of 3 42 spring mechanism em41 43, 44 distance bar between 26 and 27 45.46 mounting space for 42 47 four point support of 5 48 abutment element for 5 49 two point support of 9 50 first bending device of 9 51 second bending device of 11 52 lower section of 9 52a surface of 52 53 upper section of 9 53a surface of 53 54 junction region of 11 in 9 55 lower section of 11 56 upper section of 11 AF junction point of 2 a43 distance between 26a and 26b a44 distance between 27a and 27b B50 flexion zone B51 flexion zone M11 central part of 11 P1, P2 parallelogram guide R1 resting position of chair R2 tilted back position of chair WA stagger axis x, y, z direction α-R1 first opening angle between 52 and 53 a -R2 second opening angle between 52 and 53 β-R1 first opening angle between 55 and 56 β-R2 second opening angle between 55 and 56

权利要求:
Claims (15)
[0001]
1. Chair (1, 31, 34, 1a, 31a, 34a), comprising: - a continuous support element (2), a movement mechanism (3) and a frame (4); - the support element (2) comprising a seat region (5) forming a seat part (8), - the supporting element (2) comprising a back region (6) forming a part with the back (9), - the support element (2) comprising a transition region (7) which connects the seat region (5) and the back region (6), - the support element ( 2) uses elastic deformation to compensate for a relative movement between the back region (6) and the seat region (5), which occurs in the case of a change in the load to which the chair (1, 31, 34, 1a, 31a , 34a) is subject, by the person sitting on it, - the movement mechanics (3) comprising a torsion element (11), - the torsion element (11) supporting the back part (9) and controls the inclination of the back part (9), - the back part (9) of the support element (2) is connected exclusively above a lordosis support (19) with the torsion element (11), carac characterized by the fact that the movement mechanics is arranged between the frame (4) and the supporting element (2), and the movement mechanics (3) comprises a first inverter link (14), a second inverter link (38 ) and a basic body (41), the second inverter link (38) being pivotally pivotally connected to the basic body (41) and pivotally to an anterior half (8a) of the seat part (8), being that the first inverter link (14) is pivotally pivotally joined to the basic body (41) in a pivoting manner on a rear half (8b) of the seat part (8) and comprises the torsion element (11) which is connected with the back region (6), above a lordosis support (9) ..
[0002]
2. Chair (1, 31, 34, 1a, 31a, 34a) according to claim 1, characterized in that - the back region (6) can be tilted and / or twisted out of a sitting position in relation to the seating region (5), - a force being introduced into the support element (2) by a person who is seated causing the support element to flex and / or torsion the back (9) in in relation to the seat part (8), suffers a counter-force by the movement mechanics (3), - the movement mechanics (3) is connected with the support element (2) in the back region, above a support of lordosis (19), particularly at a central pivot point (18) or, particularly, at two lateral pivot points (17, 18), and is joined, particularly fixedly, in the seat region (5), or it is joined particularly by two axes of rotation (15, 39) arranged in the seat region (5).
[0003]
3. Chair (1, 31, 34, 1a, 31a, 34a) according to any of the preceding claims, characterized in that the torsion element (11) comprises a torsion bar (21), which extends to above, in addition to the lordosis support (19), in a plane of symmetry positioned vertically in the space (22) of the chair (1, 31, 34, 1a, 31a, 34a).
[0004]
4. Chair (1, 31, 34, 1a, 31a, 34a) according to any of the preceding claims, characterized by the fact that in order to allow deformation, a connection of the supporting element (2) in the movement mechanics is avoided (3), in the back region (6) of the support element (2), below the lordosis support (19) and in the transition region (7) of the support element (2).
[0005]
5. Chair (1, 1a) according to any one of the preceding claims, characterized in that the support element (2) comprises two support legs (26, 27) folded in the shape of an L and a covering (28) , the lining (28) being fixed between the support members (26, 27).
[0006]
6. Chair (1, 31, 34, 1a, 31a, 34a) according to any of the preceding claims, characterized by the fact that the movement mechanics (3) are arranged between the frame (4) and the support element (2) and supports both the back part (9) of the support element (2) as well as the seat part (8) of the support element (2), and by means of the movement mechanics (3) an inclination is controlled the seat part (8) and an inclination of the back part (9), depending on the forces with which a seated person acts on the chair (1, 31, 34, 1a, 31a, 34a), the inclination being of the seat part (8) and the inclination of the back part (9) are controlled independently of each other and the inclination of the back part (9) between an initial position (9-1) and an end position (9 -2) increases more strongly than the inclination of the seat part (8).
[0007]
7. Chair (31, 34,31a, 34a) according to any one of the preceding claims, characterized by the fact that the support element (2) is formed as a seat shell (32) folded in the shape of an L.
[0008]
8. Chair (1) according to any one of the preceding claims, characterized by the fact that the support element (2) is rigidly fixed in its seat region (5) on the frame (4).
[0009]
9. Chair (1, 31, 34; 1a, 31a, 34a) according to claim 2, characterized by the fact that the two axes of rotation (15, 39) extend parallel to each other and orthogonally traverse a plane of symmetry (22) of the chair (1, 31, 34; 1a, 31a, 34a), which is positioned vertically in space, and the movement mechanics (3), to compensate for a force introduced by a seated person, generates a counter-force which makes up at least 50% and, in particular, 70% less of the total required strength, the remaining strength being generated by the deforming support element (2).
[0010]
10. Chair according to any one of the preceding claims 1 to 9, characterized by the fact that the movement mechanics (3) are arranged between the frame (4) and the supporting element (2), the movement mechanics being (3) comprises a seat element (48), particularly elastically deformable, which is arranged between the frame (4) and the seat part (8) and the movement mechanics (3) comprises an inverter link (14) elastically deformable, which comprises the torsion element (11) and is connected with the frame (4) and the back region (6), above the lordosis support (9).
[0011]
11. Chair (1, 1a) according to claim 5, characterized by the fact that the support element also comprises two spacer bars (43, 44), the support members (26, 27) being kept at a distance defined, both by the two spacer bars (43, 44), which connect free ends (26a, 26b; 27a, 27b) of the support members (26, 27), as well as maintained at the distance defined by the movement mechanics (3) .
[0012]
12. Chair (1, 31, 341a, 31a, 34a) according to any of the preceding claims, characterized by the fact that the movement mechanics is damped by at least one spring mechanism (42) or a spring element ( 23).
[0013]
13. Chair (1, 31, 34; 1a, 31a, 34a) according to any of the preceding claims, characterized by the fact that the seat part (8) is connected by a support on four points (47) in four connection points (A, B, C, D) with the movement mechanics (3) and that the back part is connected by a support on two points (49), particularly on support crossbars (26, 27) with an upper half (20) of the back (9), particularly at two connection points (E, F) with the movement mechanics (3).
[0014]
14. Chair (1a, 31a, 34a) according to any one of the preceding claims, characterized in that - the back part (9) comprises a first flexing device (50), - the first flexing device (50) movably connects a lower section (52) adjacent to the transition part (10) of the back part (9) and an upper section (53) adjacent to the lower section (52) of the back part (9), - the first bending device (50) being arranged below an articulated joint region (54), in which the torsion element (11) is connected with the back part (9), - the torsion (11) comprises a second bending device (51), - the second bending device (51) releasably connecting a lower section (55) of the torsion element (11), hingedly joined to a basic body ( 41) of the movement mechanics (3) and an upper section (56) of the torsion element (11), articulated jointly in the element on the back (9), - the second device (51) being formed above the lordosis support (19).
[0015]
15. Chair according to claim 14, characterized in that the second flexing device (51), in the case of a movement of the chair (1a, 30a, 31a, 33a, 34a, 36a) from a resting position ( R1) to a position reclined backwards (R2) by a reduction of an opening angle (β-R1, β-R2) measured in a plane of symmetry (22) positioned vertically in the space between the lower section (55) of the element of torsion (11) and the upper section (56) of the torsion element (11), forces a reduction of an opening angle (ot-R1, ot-R2), also measured in the plane of symmetry (22) positioned vertically in the space, between the lower section (52) of the back (9) and the upper section (53) of the back (9), so that in the movement of the chair (1a, 30a, 31a, 33a, 34a, 36a ) from the resting position (R1) to the reclined back position (R2), the upper section (53) from the back (9) is moved in relation to the lower section (52) from the back (9) to the forward, in a direction from the ok (x)

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法律状态:
2018-12-26| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|

2019-08-20| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|

2020-06-16| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|

2020-08-11| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 14/06/2011, OBSERVADAS AS CONDICOES LEGAIS. |

优先权:

申请号 | 申请日 | 专利标题

DE102010023787|2010-06-15|

DE102010023787.6|2010-06-15|

PCT/EP2011/002908|WO2011157392A1|2010-06-15|2011-06-14|Chair|

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