MXPA97006723A - Component of a furniture to sit or similar with adjusting the back and seat coupled - Google Patents

Abstract

The present invention relates to seat furniture component with attached backrest and seat adjustment, comprising: a support chassis, a backrest adjustably fastened to the support chassis, a seat fastened in a manner to the support chassis where the The backrest and the seat are movably connected to each other, by a connection in an area of a vertex of an angle formed between them, the backrest is coupled to a pivot axis on the support chassis at a distance above the vertex and a front edge of the The seat is movably secured to the support chassis by means of a support mechanism in a manner that produces a sincoronic adjustment of the back rest and the seat, the backrest executes a real-time back and down movement superimposed on the support chassis from a vertical sitting position further high to a lower extended recline position, and the seat makes a slight movement from the sitting position to the to resting position, where the connection of the backrest to the seat in the area of the vertex of the angle has two connecting shafts that run in two cranks grooved on each side as pairs of connecting shafts and grooved cranks, of which a first pair of connecting shaft and slotted crank is located on a rear edge of the seat, the backrest extends to the trailing edge, and a second pair of connector and slotted crank is located on the rear edge of the seat at a distance above the pirmer pair of connecting and crank shaft slotted, and wherein the second pair of connector and slotted crank shaft is located approximately at a center of a distance between the pivot axis on the support chassis to which the backrest is coupled and the pirmer pair of connector shaft and crank slot

Description

COMPONENT OF A FURNITURE TO SIT OR SIMILAR WITH A COUPLED BACK AND SEAT ADJUSTMENT BACKGROUND OF THE INVENTION FIELD OF THE INVENTION This invention relates to a component of a furniture for sitting or the like, especially a component of an upholstered furniture with a fit of the backrest and the seat coupled that includes such a resilient reclining cabinet, as for example, an upholstered recliner with a back adjustable in height, or a corresponding hospital bed. More specifically, the invention relates to such an upholstered furniture component having a support chassis with a backrest adjustably attached to the support chassis and with a seat adjustably attached to the support chassis, the backrest and the seat which are movably attached to each other. in the area of the vertex of the angle between them, the backrest which is coupled to a pivot axis in the support chassis at a distance above the vertex of the angle and the seat which is movably attached to the front edge by means of a mechanism of support in the supporting frame in such a way that the backrest executes a superimposed backward inclination and that it decreases in movement from the highest vertical position, that is, the sitting position, in the least extended position, that is, the reclined position, relative to the support frame and the seat performs a slight movement in a synchronized manner from the seating position to the position of reclining, preferably a sliding and tilting movement superimposed.

DESCRIPTION OF THE RELATED TECHNIQUE Several components of comfortable and complex seating furniture are known (armchair, upholstered armchair, comfortable chair, seats for buses, trains and airplanes, reclining furniture with adjustable backrest in height), of the prior art, especially components of upholstered furniture in which the adjustment of the backrest and the adjustment of the seat are coupled. International Application Publication WO 95/25452, which forms the starting point of this invention, provides a good scheme of the prior art generally known. First, there is known a seating component in which the backrest with the seat forms an angularly rigid unit, which is attached to a supporting frame for pivoting about a pivot axis under the seat such that the backrest it tilts back and down when it tends to go backward in the reclining position, while the seat moves downward at its rear end and upward at its front end (Figures 1 and 2 of WO 95/25452) . This movement normally occurs against the force of a return spring. Here, the angularly rigid connection of the backrest and seat adjustment is not comfortable, and there is no extended position of the backrest and seat. Furthermore, it is not comfortable that the front edge of the seat moves considerably upwards and the recline position, especially since it is not healthy for the user's legs. A construction of a seating component is relatively common in which the supporting frame is made similar to a frame with the backrest which is pivotably attached to the back of the frame-like support frame at a considerable distance above the coupling point of the backrest towards the rear edge of the seat (Figures 3 and 4 of WO 95/25452). The rear edge of the seat is supported in this way by means of the backrest in the frame of the support. At or near the front edge, the seat is guided on a slide rail, which has only a slight upward inclination, such that the front edge of the seat moves forward, but only slightly upward during the transition from the seated position to the reclining position. In the system mentioned aboveA user can move relatively easily in different positions between the sitting position and the reclined position and without spending a great deal of effort to tilt his body weight. However, it is generally necessary to use an additional braking means to allow a certain desired position. A disadvantage in the seating component is the result of the pivot connection of the seat and backrest approximately at the peak of the angle of the two components. The connection of the two components is structurally simple, but the two components generally load the upholstered supports. The upholstered surfaces of the upholstered supports used by the user are a little above or in front of the pivot axis between the backrest and the seat. This results in the fact that, in the transition from the sitting position to the reclining position, the upholstered supports move away from each other resulting in a so-called "coating removal effect", which the user perceives as very unpleasant . Another problem, which is similar to the result of the aforementioned pivot connection at the vertex of the angle is an "orifice", which is formed in the pelvis / back area in the transition from the sitting position to the position of reclined This "orifice" is disruptive when it is very large, since the pelvic / back area is not then properly supported in the reclining position. Finally, the union of the seat to the front edge must be done carefully so that an excessively large blow does not occur in the cavities of the user's knee in the transition from the sitting position to the reclined position. Attempts have been made in the prior art to eliminate the "liner removal effect" by providing a connection mechanism, between the backrest and the seat in the area of the trailing edge or the bottom edge, which places the axis of the liner connection. pivot between the backrest and the seat, approximately where the surface of the two upholstered supports support each other in the sitting position. This is carried out by fins which project on the edge side from the respective frame and which are joined to the pivot together, only at their free ends (Figures 5 and 6 of WO 95/25452).

In another seating furniture component, a greater advantage is obtained over the components of the known seating furniture, mentioned above by the coupling point of the backrest to the supporting chassis, being located, not above the coupling point of the backrest towards the seat , but far below him. This is also carried out via a lever mechanism, an articulated joint connection which carries out an additional superimposed tilting movement of the backrest. The seat itself joins to approximately pivot its front edge on the support chassis a considerable distance from the attachment point of the backrest to the support chassis. Since this coupling point is close to the front edge of the seat, the front edge of the seat in the transition from sitting to the reclined position is raised less than in the components of the seating furniture known from the prior art. In the analysis of the above, the known seating furniture components show that, as before, the "coating removal effect" is noticeable when a relatively extended recline position is desired. The change in position shown in Figures 5 and 6 of WO 95/25452 illustrates that only a relatively small backward tilt movement of the backrest is possible if a "coating removal effect" force is comparatively avoided. In addition, the "hole" in the area of the pelvis / back is still very long. Finally, the prior art modality explained above (Figures 5 and 6), in any case shows that the greater inclination of the front edge of the seat takes place. This may be acceptable for a seat with foot rests, but this is not the case for a sitting furniture component of the type under consideration, which generally does not have bendable feet.

BRIEF DESCRIPTION OF THE INVENTION The starting point of this invention is therefore the especially popular version of a seating component to be explained secondarily in the above, in which the backrest is connected to pivot on the back of the support chassis similar to the frame in a considerable distance, above the coupling point of the backrest towards the rear edge of the seat. Based on this prior art, a primary object of the present invention is to minimize the above-explained "coating removal effect" and close the "hole" in the area of the pelvis / back, such that the area of the pelvis / back is also effectively supported in the recline position. A particular object of the present invention is to carry out the preceding object by designing the furniture to sit in such a way that it results in a small displacement of the lever support point of a user relative to the backrest during the transition from the sitting position to the reclined position in order to reduce in this way the "coating removal effect".

It is a further object to obtain the foregoing objects, while retaining the basic principle of the prior art which inherently has the advantage of maximum simplicity. The objects mentioned above are achieved in the component of the furniture to sit, of the type initially mentioned by the features where the connection of the backrest to the seat in the area of the vertex of the angle between them has, on each side, two connection axes the which run on two slotted cranks, a first connecting shaft and a pair of slotted cranks that are located on the back edge of the seat, towards which the backrest extends, and a second connecting shaft and a pair of slotted cranks that are located at the rear edge of the seat at a distance above the first pair. In the development of the present invention, it is determined that, in the sitting position, this is inherent with the seating component of the type to which the invention is directed, that the point of support of an individual, when properly felt, is always approximately in the same position in the seat. Where exactly this position is, of course, depends on different influencing factors, for example the height of the upholstered support, the weight of the individual, their size and body construction, and gender. However, for the most part, it can be established that the lever of the points of support of the user's body will always be located in a relatively narrow delineated area on the seat and in the front of the backrest.

Proceeding from the determination explained above, it is then analyzed how a change in the length on the surface of the upholstered support on the backrest can be avoided with respect to the point of support of the user's lever in the transition from the sitting position to that of reclined This change in length is the cause of the "coating removal effect", explained above. Of course, the user remains seated in the seat in the transition from the sitting to the reclined position and does not slide forward and backward. Consequently, an effort must be made so that the user's back does not change position on the surface of the upholstered backrest support or make it as light as possible. In addition, however, the simple design of the prior art, which forms the starting point for the invention with the pivot axis for the backrest in the support chassis (continuously or formed by axle sections located on both sides) is retains fundamentally. According to the teaching of the invention described above, the desirable result is achieved by the connection of the backrest in the seat in the area of the vertex of the angle that is carried out, not via a simple joint with a connecting shaft, but a double joint path. The connection mechanism with the connection axes and the slotted cranks ensure that the backrest attached to the rear end of the seat is deflected forward with respect to the seat, towards its front edge, at the transition from the sitting position or to the reclined position . The direction of this deflection is opposite to the direction of travel which in the transition from the sitting position to the reclined position leads the upholstered supports to move away from each other. Since the upholstered supports, according to the invention, do not move apart as dramatically as in the prior art, the upholstered support of the backrests in the transition from the sitting position to the reclined position, moves on the upholstered support of the seat somewhat forward and upwards in such a way that the "hole" which is formed in the area of the back and support points is much smaller and can still be mostly eliminated, as much as is optimal for the purposes of comfortable sitting. The design of the invention can be constructed relatively easily and economically, with the suspension being produced as in the past; therefore, in principle the support chassis which has been extensively used for known seating furniture components, can continue to be used, and that the coupling points can be well hidden. The teaching of the invention can be physically executed in different ways, as will be apparent from the following detailed discussion, when viewed together with the attached drawings which show, for purposes of illustration, only a few of the possible modalities according to the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 shows a modality of a seating component known in the sitting position Figure 2 shows the component of the seating furniture of Figure 1, in the reclined position; Figure 3 is a schematic representation of a seating piece component according to the present invention with the seating position shown in solid lines and the recline position by dotted lines; Figure 4 is an elongated illustration of the vertex area of an angle between the backrest and the seat of the embodiment shown in Figure 3; Figure 5 is a view corresponding to that of Figure 4, but shows another embodiment with a different crank guide; Figure 6 shows a support which physically implements the handle of the handle of Figure 5; Figure 7 shows an area of the front edge of a seat of the furniture component to sit according to the present invention; Figure 8 shows another embodiment of a seating component according to the present invention with the sitting position shown in solid lines and the reclined position shown with dotted lines; and Figure 9 is a view similar to that of Figure 8 showing a fourth embodiment of a seating piece component according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED MODALITIES Since the component of the furniture for seating or the like according to the present invention, is essentially an improvement of a component of furniture for sitting known, which retains the basic construction of the prior art, to locate the present invention in context, first, the component of the anterior seating furniture will be explained in relation to Figures 1 and 2. The illustrated seating furniture component is, generally in a preferred embodiment, an upholstered furniture component, especially an upholstered chair or part of a sofa multiasiento upholstered bed. However, it should not be constructed as meaning that the seating component can not be implemented without upholstered supports, for example, as a linen or plastic seat seat. As indicated above, the invention relates to the furniture components to sit in the more general definition thereof as components with a seat and back coupled to be positionally adjusted in combination with each other. Consequently, they can be armchairs, upholstered chairs, comfortable chairs, as well as seats for buses, trains and airplanes, two or three seats of sofas, and also reclining furniture in which it is possible to sit, for example, hospital beds that they have a back adjustable in height or corresponding to upholstered recliners. The seating furniture component shown in Figures 1 and 2 has a backrest and seat that are engaged for adjustment in a coordinated fashion. The backrest 2 and the seat 3 can be recognized as being supported on a chassis 1 of the seat furniture component, executed here as an upholstered chair. The backrest 2 is connected to the chassis 1 to pivot approximately a pivot shaft 4, and this pivot shaft 4 can be formed as a simple pivot shaft forming a member extending continuously between the width of the seat from side to side or it can be formed by separate pivot shafts which form members located on each side of the chair, preferably by the latter. The backrest 2 movably attaches to the seat 3 in the vertex area of the angle by a pivot joint P. Beneath the front edge of the seat 3, in the support chassis 1, is a crosshead 5 which supports the seat 3. In the bottom of the seat 3 in the area of the cross-piece 5 is a needle 6. In a more secure manner, in the front edge of the seat 3 in the crosshead area 5, on each side of the seat is a needle 6. The crosshead 5 and the needle 6 together, form a supporting mechanism for the front edge of the seat 3 which allows a movement of slipping and tilting of the front edge of the seat 3. It should be noted that the sliding and tilting movement of the seat 3 at the front end can be carried out by the guide for connecting rods instead of a sliding sliding guide, as is also known in the prior art. In principle, it is also possible to use only a support mechanism 5, 6 in the support chassis 1, approximately under the center of the seat 3. This offers additional design possibilities.

The backrest 2 executes a rearwardly inclined and decreasing backward movement relative to the support chassis 1 from the highest, vertical position, that is, the sitting position, towards the least extended position, ie the position of the backrest. reclining as can be observed from a comparison of Figure 1 with Figure 2. At the same time, the seat 3 executes, in a synchronized manner, only a light movement, specifically the superimposed sliding and tilting movement explained above, from the Seat position towards the reclined position. The tilting movement of the seat 3 in the transition from the sitting position to the reclined position leads, to the result that the deviation of the weight of the user in the attempt to sit correctly again is used by decreasing the seat 3 pressure by the greater weight of the user and in this way again correctly positioning the seat 2, optionally supported by a spring back (not shown). This is, easily apparent that it does not work at all without any displacement of the seat 5 in this type of seating furniture components with seat and backrest adjustment coupled. Figures 1 and 2 show the lever 7 of the fulcrum of the body of an individual seated on average. The lever 7 is in a certain position on the seat 3 and in front of the backrest 2 when the individual is seated correctly. As already explained in the background part of this specification, the lever 7 of the fulcrum deviates only a little or not at all from the seat 3 during the transition from the sitting position to the reclined position.

As it is noted, Figures 1 and 2 of the drawings show a seat seating component of the prior art, which forms the starting point for teaching in which the basic concept of the coupling of the backrest 2 and the seat 3 effected it remains fundamentally On this basis, Figures 3 and 4 show a method according to a first embodiment of the invention, the position of the backrest 2 and the seat 3 in the sitting position shown there in solid lines and in the recline position by dotted lines. The connection of the backrest 2 to the seat 3 in the vertex area of the angle between them has been essentially changed relative to it from Figures 1 and 2 of known arrangement. Finally, it is indicated that, generally, this connection is made on each side of the backrest 2 and the seat 3, therefore to the right and left of the backrest 2 and seat 3, or only at one point, especially in the center. The connection has two connection axes 8, 9 which run on the cranks 10, 11 grooved. Here, it is apparent that a first connection shaft 8 and a pair 10 of slotted cranks are located at the rear edge of the seat 3 and that the lower end of the backrest 2 extends so far with respect to this connection. It can also be seen that a second connection shaft 9 and the pair 11 of slotted cranks are located at the rear edge of the seat 3 at a distance above the first pair 8, 10. The representation in Figure 3 makes this especially clear that the backrest 2 deviates more strongly towards the front below the pivot axis 4, during the transition from the sitting position to the reclined position, in the seat 3. The relative resulting movement between the lower edge of the backrest 2 and the seat 3 is accommodated by the first pair formed by the connecting shaft 8 and the slotted perforated crank 10. The "coating removal effect" and "hole" in the area of the pelvis which occurs in the transition to the reclined position is clearly reduced to a comfortable degree. The sitting position and the reclining position are defined by the end positions of the connecting shafts 8, 9 on the slotted cranks 10, 11. Figure 4 illustrates that, preferably, a certain position for the second pair 9, 11 causes a particularly beneficial effect. The second connection axis and the slotted crank pair 9, 11 are located, in this mode, approximately in the center of the distance between the pivot axis 4 and the first axis and the pair of cranks 8, 10. If, as shown, the first axis and the pair of cranks 8, 10, are located approximately in the lower part of the seat 3, additionally it is recommended that the second axis and the pair of cranks 9, 11 be located approximately in the height of the part upper of the support 12 upholstered in the seat 3. In the embodiment shown, it can be recognized that the supports 12 upholstered in the backrest 2 and the seat 3 have approximately the same thickness. Figure 4 shows how the front of the support 12 upholstered in the back 12 moves on the rear end of the upholstered support 12 of the seat 3 during the transition to the reclined position, and thus, supports the lumbar area of the user.

The assignment of the connection axes and the slotted cranks to the two interconnected parts, especially the backrest 2 and the seat 3, can essentially be determined freely. However, in the embodiment shown, the first connection shaft 8 is located in the backrest 2 and the first crank 10 slotted in the seat 3, while the second connection shaft 9 is located in the seat 3 and the second crank 11 slotted in the backrest 2. The second connection axis and the pair 9, 11 of slotted cranks are essentially used to compensate for the movement of the backrest 2 and the seat 3 in relation to each other, which results from the displacement of the connection axis 8 on the crank 10 grooved. The embodiment shown in Figures 3 and 4 has crank 10 running in a straight line and aligned approximately parallel to the plane of the seat 3. This corresponds to the fact that the second crank 11 slotted runs in a straight line and is preferably aligned in the sitting position approximately perpendicular to the plane of the seat 3. However, it is also possible to orient the slotted crank 10, inclined relative to the plane of the seat 3, which is raised from the back to the front end. This inclined position leads to an altered movement of the backrest 2 relative to the seat 3 which depends on the desired application, but also depends on the configuration and upholstery of the seat 3 and the backrest 2. Figure 3 shows, in dotted lines on the edge front of the seat 3, the inclined position of the corresponding needle 6, which is part of the support mechanism. This inclination can be approximately 40 ° with respect to the ground; the angle of inclination must be selected in such a way that a user does not feel that the front edge of the seat 3 strongly presses the cavities of his knees during the transition to the reclined position. A certain inclination is pleasant, but much is unpleasant. The displacement at the front edge of the seat 3, otherwise, largely follows the shape of the connection area at the apex of the angle. Figure 7 shows the front edge area of the seat 3 in a schematic view in which the deviation of a particular point at the front edge of the seat 3 is traced during the transition from the sitting position to the recline position. The solid line shows the deviation of this point in the modality with the crank 10 slotted straight as shown in Figures 3, 4. Here, an inflection is shown in this curve which occurs rapidly before the reclining position is reached; it is known from practice that this point is approximately 5 ° before the reclining position is reached. It is known that this effect is unpleasant for the user of the seating component, known from the prior art as "tilting". Figures 5 and 6 show a modality in which the "tilt" effect explained above does not occur greatly or at least does not occur essentially as large. This is carried out according to the embodiment in Figures 5 and 6 by the first slotted crank having a hole which is curved in a concave shape and according to the preferred teaching shown here, is curved in a circular arc shape . The location of the slotted crank 10 having such a concavely curved slot is dictated by the pivoting-slipping movement of the connecting shaft 9 with reference to the slotted crank 11 and the desired deviation of the backrest 2. Tests have shown that it is It is a good idea to have the crank 10 bevelled curved in a concave shape running not very parallel to the lower edge of the seat 3, but, as shown, provide for the rear end of the crank 10 grooved in the lower rear edge of the seat 3 to be smaller that the front end thereof, which is directed to the front edge of the seat 3. The embodiment shown, furthermore, illustrates that, in the design chosen here, the radius of the circular arc of the arc-shaped concave hole of the crank 10 corresponds approximately the distance between the two connection axes 8, 9 in the sitting position or is slightly smaller than this distance. Here, of course, there are ample possibilities for variation. Basically, the additional optimization for an S-shaped crank or for a concave curved crank in combination with a concave curved crank of a different radius or part of a straight crank may also be possible. Figure 7 shows where the special advantage of the concavely curved slot of the crank 10 of the embodiment of Figures 5 and 6 rests. The broken line in Figure 7 shows the behavior of the corresponding point when the crank 10 with the curved hole in concave shape is used. Here, it is shown that the source of the "tilt effect" is essentially eliminated, resulting in a smooth, pleasant movement of the backrest 2 when the seat is raised from the reclined position.

Figure 6 shows that the parts assigned to backup 2, by , especially the first connecting shaft 8 and the second crank 11 slotted, are combined in the support 13 of the backrest. Accordingly, the parts assigned to the seat 3, especially therefore the second connection shaft 9 and the first slotted crank 10, are combined in the seat support 14. The support 13 of the backrest and the support 14 of the seat, in the embodiment shown, are connected to each other to form a single, manageable part which can be surrounded by a housing (not shown). It should be recognized that this total support is located on the left and right sides of the support frame 1, preferably two mirror-symmetrical total supports are used. A total individual support is located in the center between the backrest 2 and the seat 3 or two individual supports, that is, a back support and a seat support, approximately in the middle between the backrest 2 and the seat 3 can be fundamentally possible. The embodiment in Figure 3, further, illustrates that in this concept as well as the backrest 2 is curved backward equally about the height of the axis 4 of the pivot; this causes a correspondingly comfortable reclining position. When the individual distances and the spokes are appropriately dimensioned the support 12 upholstered in the backrest 2 and the seat 3 can be constructed continuous and the total lateral supports largely hidden therein. Therefore, the guidance of the connecting shafts 8, 9 on the slotted cranks 10, 11 takes place with little friction, this is possible to properly surround the edges of the slotted cranks 10, 11, to provide them with displaceable coatings or inserts scrollable or to treat their surfaces in some other way. It can also be visualized as possible for the connecting shafts 8, 9, by themselves, to be manufactured as rollers which run on the cranks 10, 11 grooved to further reduce the friction. Figure 8 shows an alternative method for a probable functionality of the shape of the furniture component to sit which reduces the "coating removal effect" and in which the aforementioned reference numbers have been used to designate corresponding parts. To this degree, repeated explanations of these parts are not necessary. As an alternative, it is provided that the connection of the backrest 2 to the seat 3 in the vertex area of the angle has, on each side, three connection shafts 15, 16, 17 and a slotted crank 18. The first connection shaft 15 runs in the slotted handle 18 and this pair 15, 18 is located in the front part of the rear edge of the seat 3. The second connection shaft 16 is located in the backrest 2 at a distance above the pair 15. , 18, and the third connection axis 17 is on the rear edge of the seat 3. The second connection axis 16 and the third connection axis 17 are connected together via an auxiliary connection bar 19. The representation of the position of the seat in the solid lines and the recline position in the dotted lines indicates the operation of the auxiliary connection bar 19. The seat 3 is withdrawn away from the backrest 2 in the transition to the reclined position as soon as the connecting shaft 15 moves away from the connecting shaft 17 in the hole of the crank 18, and as a result, some displacement of the backrest 2 , which causes the effect of removal of the coating in relation to the seat is canceled or compensated in this way. Finally, Figure 9 shows a modality with another version, in which it is provided that the connection of the backrest 2 to the seat 3 in the vertex area of the angle on each side, is carried out via an auxiliary connection bar 20 which it is pivotably connected at both ends between the lower end of the backrest 2 and the rear end of the seat 3. This auxiliary connection link 20 forms a connection similar to an articulated joint between the backrest 2 and the seat 3, and allows a movement pendulum of seat 3 during the transition to the reclined position; this similarly, as shown in Figure 9, partially compensates for the displacement of the backrest 2 relative to the seat 3. Also in Figure 9, an additional pivot link is shown which guides and supports the front end portion of the seat 3 in Instead of, for example, the support mechanism as used in the prior art formed of the needle 6 and the crosshead 5. At the beginning of this Detailed Description, reference is made to Figures 1 and 2 and to the fact that the front edge of the seat 3 is supported on the crosshead 5 by means of the needle 6. The known braking means 21 is shown there, which allows a defined braking effect to be established in such a way that the movement of the furniture component to sit between the sitting position and the reclining position can be sensitively adjusted or individual positions that ?? They can also be established. Such braking means 21 or an alternative equivalent, must, of course, also be implemented in the seat component of the present invention, for which reference may be made to the prior art or in the commonly applicable patent application entitled "Braking Means". for a Movable Part of a Furniture Component, Especially a Upholstered Furniture Component "and in which the priority of the claims are based on German Patent Application Nos. 19634807.2 and 19638075.8. The concept of a seating component, especially an upholstered furniture component, generally includes, as specific products, chairs, armchairs, comfortable chairs, and also upholstered multi-seat furniture, which then have the adjustability mentioned above in each individual seat . These seat furniture components also include, for example, airplane seats or seats in comfortable tour buses or other means of transportation. These seating furniture components can also be used for other rest areas. While other embodiments according to the present invention have been shown and described, it is understood that the invention is not limited thereto, and is susceptible to numerous changes and modifications as is known to those skilled in the art. Therefore, this invention is not limited to the details shown and described herein, and includes all changes and modifications as encompassed by the scope of the appended claims.

Claims (28)

t. CLAIMS

1. A seat furniture component with backrest and seat adjustment coupled, characterized in that it comprises: a support chassis; a backrest adjustably attached to the support chassis; a seat adjustably attached to the support chassis; wherein the backrest and the seat are movably connected to each other by a connection in an area of a vertex of an angle formed therebetween, the backrest being coupled to the pivot axis in the support chassis at a distance above the vertex and a front edge of the seat that is movably attached to the support chassis by means of the support mechanism in a way that produces a synchronous adjustment of the backrest and the seat, the backrest that executes a backward movement of inclination and downwards superimposed with relation to the support chassis from a higher vertical seating position, towards the lower extended recline position and the seat executes a slight movement from the sitting position to the reclined position; wherein the connection of the backrest to the seat in the corner vertex area has two connecting shafts which run in two slotted cranks on each side as the connection shaft and the pair of slotted cranks of which a first connecting shaft and a pair of slotted cranks are located at a rear edge of the seat, the backrest extending to the trailing edge, and a second connecting spindle and a pair of slotted cranks are located at the rear edge of the seat at a distance above the first connecting shaft and pair of slotted cranks.

2. The component of the seat furniture according to claim 1, characterized in that the seat position and the recline position are each defined by a respective end position of the connecting shafts on the slotted cranks of the pairs.

3. The component of the seat furniture according to claim 1, characterized in that the second connection axis and the pair of slotted cranks are located approximately in the center of a distance between the axis of the pivot in the support chassis for which it is coupled the backrest and the first connection shaft and the pair of slotted cranks.

4. The component of the seat furniture according to claim 3, characterized in that the first connection axis and the pair of slotted cranks are located in the lower part of the seat.

5. The component of the seat furniture according to claim 1, characterized in that the first connection axis and the pair of slotted cranks are located in the lower part of the seat.

6. The component of the seat furniture according to claim 5, characterized in that an upholstered support is provided in the seat; wherein the second connection axis and the pair of slotted cranks are located approximately at a height of an upper part of the upholstered support on the seat.

7. The component of the seat furniture according to claim 3, characterized in that an upholstered support is provided in the seat; wherein the second connection axis and the pair of slotted cranks are located approximately at a height of an upper part of the upholstered support on the seat.

8. The component of the seat furniture according to claim 1, characterized in that an upholstered support is provided on the seat; wherein the second connection axis and the pair of slotted cranks are located approximately at a height of an upper part of the upholstered support on the seat.

9. The component of the seat furniture according to claim 1, characterized in that the connection axis of the first connection axis and the pair of slotted cranks are located in the backrest and the slotted crank of the first connection shaft and the pair of slotted cranks. they are located in the seat.

10. The component of the seat furniture according to claim 9, characterized in that the connection axis of the second connection axis and the pair of slotted cranks are located in the seat and the slotted crank of the second connection axis and the pair of slotted cranks. they are located in the backrest.

11. The component of the seat furniture according to claim 1, characterized in that the connection axis of the second connection axis and the pair of slotted cranks are located in the seat and the slotted crank of the second connection axis and the pair of slotted cranks. they are located in the backrest.

12. The component of the seat furniture according to claim 1, characterized in that the slotted crank of the first connection axis and the pair of slotted cranks have a hole which runs in a straight line approximately parallel to the upper surface of the seat.

13. The component of the seat furniture according to claim 4, characterized in that the slotted crank of the first connection axis and the pair of slotted cranks have a slot which runs in a straight line approximately parallel to the upper surface of the seat.

14. The component of the seat furniture according to claim 5, characterized in that the slotted crank of the first connection axis and the pair of slotted cranks have a slot which runs in a straight line approximately parallel to the upper surface of the seat.

15. The seat furniture component according to claim 1, characterized in that the slotted crank of the second connection axis and the pair of slotted cranks have a groove which runs in a straight line, approximately perpendicular to the upper surface of the seat in the seat. the sitting position.

16. The component of the seat furniture according to claim 6, characterized in that the slotted crank of the second connection axis and the pair of slotted cranks has a slot which runs in a straight line approximately perpendicular to the upper surface of the seat in the position of sitting.

17. The component of the seat furniture according to claim 7, characterized in that the slotted crank of the second connection axis and the pair of slotted cranks have a slot, which runs in a straight line approximately perpendicular to the upper surface of the seat in the seat. sitting position.

18. The component of the seat furniture according to claim 8, characterized in that the slotted crank of the second connection axis and the pair of slotted cranks have a slot which runs in a straight line approximately perpendicular to the upper surface of the seat in the position of sitting.

19. The component of the seat furniture according to claim 1, characterized in that the slotted crank of the first connection axis and the pair of slotted cranks have a slot which is curved in a concave shape and is below the rear end thereof which is located on a lower edge of the seat rather than on a front edge thereof.

20. The component of the seat furniture according to claim 4, characterized in that the slotted crank of the first connection axis and the pair of slotted cranks has an opening which curves in a concave shape and is below the rear end thereof, the which is located on a lower edge of the seat rather than on a front end thereof.

21. The component of the seat furniture according to claim 5, characterized in that the slotted crank of the first connection axis and the pair of slotted cranks have a groove which curves in a concave shape and is below the rear end thereof; which is located on a lower edge of the seat rather than on a front end thereof.

22. The component of the seat furniture according to claim 16, characterized in that the slotted crank of the first connection axis and the pair of slotted cranks have a slot which curves in a concave shape and is below the lower end thereof, which it is located on the lower edge of the seat rather than on the front edge of the seat.

23. The component of the seat furniture according to claim 1, characterized in that the connection axis of the first connection axis and the pair of slotted cranks and the slotted crank of the second connection axis and the pair of slotted cranks are combined in the support of the backup.

24. The component of the seat furniture according to claim 23, characterized in that the connection axis of the second connection axis and the pair of slotted cranks and the slotted crank of the first connection axis and the pair of slotted cranks are combined in the support of the seat.

25. The seat furniture component according to claim 24, characterized in that the support of the backrest and the support of the seat are joined together to form a total support.

26. The component of the seat furniture according to claim 1, characterized in that the connection axis of the second connection axis and the pair of slotted cranks and the slotted crank of the first connection axis and the pair of slotted cranks are combined in a support of the seat.

27. The component of the seat furniture with backrest and seat adjustment coupled, characterized in that it comprises: a support chassis; a backrest adjustably attached to the support chassis; a seat adjustably attached to the support chassis; wherein the backrest and the seat are movably connected to each other by a connection in an area of a vertex of an angle formed therebetween, the backrest being coupled to the pivot axis in the support chassis at a distance above the vertex and a front edge of the seat that is movably attached to the support chassis by means of the support mechanism in a way that produces a synchronous adjustment of the backrest and the seat, the backrest that executes a backward movement of inclination and downwards superimposed with relation to the support chassis from a higher vertical seating position, towards the lower extended recline position and the seat executes a slight movement from the sitting position to the reclined position; wherein the backup connection to the seat in the vertex area of the angle has three connection axes and a slotted crank on each side; wherein a first of the connecting shafts runs in the slotted crank and forms a connecting shaft, and the pair of slotted cranks with the slotted crank, the connecting shaft and the pair of slotted cranks located opposite the rear edge of the slotted crank. seat; wherein a second of the connection axes is located on the backrest at a distance on the connection axis and the pair of slotted cranks; wherein a third of the connection axes is located at the rear edge of the seat; and wherein the second connection axis and the third connection axis is interconnected via an auxiliary connection bar.

28. The component of the seat furniture with adjustable backrest and seat adjustment, characterized in that it comprises: a support chassis; a backrest adjustably attached to the support chassis; a seat adjustably attached to the support chassis; wherein the backrest and the seat are movably connected to each other by a connection in an area of a vertex of an angle formed therebetween, the backrest being coupled to the pivot axis in the support chassis at a distance above the vertex and a front edge of the seat that is movably attached to the support chassis by means of the support mechanism in a way that produces a synchronous adjustment of the backrest and the seat, the backrest that executes a backward movement of inclination and downwards superimposed with relation to the support chassis from a higher vertical seating position, towards the lower extended recline position and the seat executes a slight movement from the sitting position to the reclined position; and wherein the connection of the backrest to the seat in the corner vertex area comprises an auxiliary connecting bar on each side of the seat, which is pivotally coupled at a first end to a lower end of the seatback and an opposite end towards the rear end of the seat.