• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a seat depth adjustment device for a vehicle seat comprising a seat structure (3), which comprises a support plate (6) displaceable relative to the seat structure (3), the plate carrier (6) being relatively movable relative to the seat structure (3) by means of a linear guide and the seat structure (3) being made to receive a cushion cover, the latter being preloaded to using a cover return guide (22), the latter being in operative connection with the support plate (6) and connected to the support plate (6) in a continuously positionable manner.
    公开号:FR3021916A1
    申请号:FR1555005
    申请日:2015-06-02
    公开日:2015-12-11
    发明作者:Benjamin Rehfuss
    申请人:Dr Ing HCF Porsche AG；
    IPC主号:
    专利说明:

    [0001] The invention relates to a seat depth adjustment device for a vehicle seat comprising a seat structure, the seat structure comprising a support plate relatively movable relative to the seat structure, and the seat plate. carrier being relatively movable relative to the seat structure by means of a linear guide of the seat structure, and the seat structure being made to receive a cushion cover, and the cushion cover being prestressed to the using a cover return guide, and the cover return guide being in operative connection with the support plate.
    [0002] Seat depth adjusters for vehicle seats are known. On a seat structure is made relatively movable relative to the seat structure, so that a seat depth of the seat structure can be changed. The setting of the support can be carried out mechanically or with the help of an electric drive. For example, from the utility model DE 20 2013 102 108 U, there is shown a seat depth adjustment device comprising a base support and a support plate. The support plate is preloaded against the base support with a spring to simplify manual control of seat cushion depth adjustment. DE 10 2009 012 780 B3 discloses a seat depth adjustment device, in which a base support is fixedly connected to a seat structure. A support plate disposed on the base support is relatively displaceable relative to the base support by means of an electric drive. Patent application EP 1 984 206 B1 discloses a seat depth adjuster, wherein the adjustment of the seat cushion comprises an electric drive for the relative movement of a support plate on a seat structure. The support plate is relatively movable relative to the seat structure, so that a seat depth of the seat structure can be changed. In addition, a spring is provided to assist the relative movement. A cover return guide for the adaptation of a cushion cover is made structurally and functionally with the adjustment of the seat cushion. The cover return guide is made using a plate comprising a perforated toothing, which plate is movably received on the base support. Through a pinion which is received on the base support and is in mechanical connection with the perforated toothing, the plate is moved relative to the base support. A rod is attached to the plate, which rod is connected to the padding cover at both ends. The rod is made transversely to a direction of movement of the support plate. During a movement of the support plate, the plate is moved by means of the pinion meshing with the perforated toothing, so that, by means of the movement of the plate, the rod is displaced relative to the to the seat structure correspondingly to the direction of movement. It is problematic that a sound nuisance occurs during a movement of the plate due to the pinion meshing in the perforated toothing and a meshing thus formed between the perforated toothing and the pinion. The object of the present invention is to provide a seat depth adjustment device for a vehicle seat, the cover return guide is made in a silent manner. The object is achieved according to the invention by a seat depth adjustment device for a vehicle seat of the type indicated in the introduction characterized in that the cover return guide is connected to the support plate positionably continuously. Advantageous embodiments having judicious and non-trivial improvements of the invention are given below.
    [0003] The seat depth adjustment device for a vehicle seat according to the invention comprises a support plate relatively movable relative to a seat structure of the vehicle seat. The support plate is relatively movable relative to the seat structure by means of a linear guide of the seat structure. The seat structure is made to receive a cushion cover, the cushion cover being prestressed by means for example of two spiral springs with a cover return guide and the cover return guide is in functional connection. with the support plate, so that the cover return guide is connected to the support plate in a continuously positionable manner. The advantage is the production of a silent cover tension of the cushion cover during a relative movement of the support plate relative to the seat structure. Advantageously, the cover return guide 5 comprises a retaining element, which is, at one end, connected to the cushion cover and is, at the other end, fixedly connected to the seat structure, so that that a fixed point of the upholstery cover is attached to the seat structure and that the upholstery cover can be positioned exclusively relative to this fixed point. In other words, by attaching the cushion cover to the seat structure with the retainer, only a limited movement of the cushion cover is possible. Therefore, a simple functional connection between the upholstery cover, the support plate and the seat structure can be produced, which functional connection is furthermore made very stable with respect to the climatic conditions, because of the spiral spring. The device is therefore characterized in that the cover return guide comprises a retaining element, which can be connected to the cushion cover, the retaining element being fixedly connected to the seat structure. In a further embodiment, the seat structure comprises a base support that can be fixedly connected to the seat structure, the linear guide being formed in the base support and the retaining element of the cover return guide being fixed. to the basic support. A simple mounting of the cover return guide is therefore possible, since the cover return guide can be mounted on the base support, which is much more manoeuvrable than the seat structure, and, after the mounting of the cover guide, Back cover, the base support can be fixed non-movably to the seat structure by means of the cover return guide connected thereto. The cover return guide includes a two-piece retainer (including a first retainer portion and a second retainer portion), which provides for a first retainer portion the retainer in the form of a resilient member and providing a second retention member portion of the retainer in the form of a non-resilient member. The first retainer portion is an elastic member for prestressing and serves for elastic prestressing, so that regardless of the positioning of the support plate, prestressing of the cushion cover is maintained. The second retainer portion is a non-resilient member for guiding and serves to provide secure and stable guidance of the retainer. With an exclusively inelastic or only slightly resilient retaining element, only limited positioning of the support plate would be possible, since a too large displacement of the support plate relatively to the seat structure would cause a possibly too great tension in the upholstery cover, so that damage to the upholstery cover would occur, for example in the form of tears. An exclusively elastic retaining element would have the disadvantage of a too flexible tension of the upholstery cover and unsafe guiding. With the aid of the seat depth adjustment device according to the invention, a cover return guide without folds and safe is made. The first retainer portion is connected at one end to the base support and at the other end to the second retainer portion, the second retainer portion is connected to a end, at the first part of the retaining element and, at the other end, to the upholstery cover. It is therefore possible to make the first retainer part as a spiral spring, in particular a single spiral spring, which can be received at least partially in the base support or on the seat structure, and configuring the second retainer portion as a band. The advantage of a strip is that it must be configured to have a relatively large bandwidth and a simultaneously low bandwidth, so that tensile forces act on the relatively narrow bandwidth. large in view of the tension of the upholstery cover. On the other hand, the low strip thickness is advantageous because of only small space requirements. In addition, the use of a band is stable vis-à-vis the climatic conditions and silent. If the first resilient retaining member portion is formed as a spiral spring, the result is the advantage of an improved appearance of the cushion cover due to a relatively constant tension force of the spiral spring. , especially in the case of long spiral springs having a low spring constant. The second retainer portion has at least two changes in direction of action. That is, it is advantageous to deflect the direction of action of the second non-elastic retaining member portion so that a relatively constant force acts on the transverse seam. Preferably, the second retaining member portion is to be deflected in a simple manner on the base support. To further dampen a possible but very low noise output from the resilient retainer portion, the cover return guide includes a damping pipe, which is advantageously positioned in the region of the resilient retainer. Here, a spiral spring is provided as an elastic retaining element, which spiral spring can receive a damping pipe so as to surround it.
    [0004] The mounting time of the cushion cover can be further reduced by the fact that the cover return guide includes a connecting element for the detachable connection to a transverse seam of the cushion cover. The connecting element may be hook-shaped so that it can be simply hooked into the transverse seam. With the aid of the connecting element, a simple connection or detachment of the upholstery cover to or from the cover return guide can therefore be achieved. Advantageously, the device according to the invention is further characterized in that the cover return guide produces a functional connection between the cushion cover, the support plate and the base support. In order to achieve a simple functional connection between the cover return guide and the translational movement of the support plate, the support plate comprises a through opening which completely traverses the cover return guide. In other words, the passage opening forms a kind of eyelet in which the retaining element, in particular the second non-elastic retaining element part, can be introduced. On one side of the support plate, which is turned towards the cushion cover, the retainer is connected to the cushion cover. On the other side of the support plate, which is turned towards the base support or the seat structure, the retaining element is fixed to the base support or the seat structure. This means that, when the support plate moves relative to the seat structure, the retaining element can, due to its mounting in the passage opening, be driven by the support plate and no additional structural element is required for the transmission of movement from the support plate to the cover return guide. Advantageously, the cover return guide is made so as to completely traverse the support plate, said support plate having a passage opening.
    [0005] Other advantages, features and particularities of the invention result from the following description of preferred embodiments as well as from the drawing. The features and combinations of features mentioned previously in the description as well as the characteristics and combinations of features mentioned hereinafter in the description of the figures and / or illustrated in the figures only can be used not only in the respective mentioned combination but also in other combinations or in isolation without departing from the scope of the invention. Identical elements or identical function are associated with identical reference numbers. For reasons of clarity, it is possible that the elements are not provided with their reference numbers in all the figures, without losing their association. In the drawing: FIG. 1 illustrates in a perspective representation a cross-section of a seat structure of a vehicle seat comprising a seat depth adjusting device according to the invention, FIG. 2 illustrates in a representation in perspective the seat structure of the vehicle seat including the seat depth adjusting device according to Fig. 1 comprising a base support, Fig. 3 illustrates in a perspective view a base support and a support plate of the device. according to the invention according to FIG. 1 in the direction of observation towards a lower surface of the support plate and of the base support, FIG. 4 illustrates in a perspective representation the base support and the support plate in a section along the section line IV-IV; FIG. 5 illustrates in a perspective representation the basic support; and the support plate in a section along the section line VV, FIG. 6 illustrates in a perspective representation the seat structure of the vehicle seat comprising the seat depth adjusting device according to FIG. additional, and Figure 7 illustrates in a perspective representation a lower surface of the base support. A seat depth adjuster 1 for a vehicle seat 2 is made in accordance with FIG. 1. The vehicle seat 2 comprises a seat structure 3, which is displaceable in a manner mounted on rails 4 along a longitudinal axis of vehicle not shown in more detail of a vehicle not shown in more detail. The seat structure 3 is made to receive a cushion cover not shown in more detail. The seat structure 3 comprises the seat depth adjusting device 1, the seat depth adjusting device 1 comprising a base support 5 and a support plate 6. The base support 5 is fixedly connected to the seat structure. seat 3, a connection by means of screwing 13, see Figure 3, being in this embodiment preferably used for simple assembly and disassembly. The base support 5 comprises a linear guide 7, see Figure 2. The support plate 6 is connected to the base support 5 through the linear guide 7, the linear guide 7 being made parallel to the longitudinal axis of the vehicle . Therefore, the support plate 6 is relatively translatable relative to the seat structure 3 by means of the linear guide 7. The linear guide 7 is configured in the form of a rod on a first lateral surface 14 of the base support 5 and on a second lateral surface 15, opposite to the first lateral surface 14, of the base support 5, which rod is made in one piece with the base support 5. The two lateral surfaces 14, 15 of the base support 5 made in U-shape in top view are positioned parallel to the longitudinal axis of the vehicle. The support plate 6 comprises, on its first lower surface 16 which is positioned facing a first surface 17 of the base support 5, a first receiving element 18 and a second receiving element 19, in which the rods of the basic support 5 can be introduced. Therefore, a sliding bearing 20 between the support plate 6 and the base support 5 is made with defmed support surfaces, see Figure 4. As illustrated in Figure 5, springs (eg metal) 21 , in particular two springs (for example metal) 21 for each sliding bearing, are furthermore made between the first surface 17 of the base support 5 and the first lower surface 16 of the support plate 6 for the purpose of reducing a clearance in the Z direction, so that an optimized seat depth adjustment set is obtained.
    [0006] The translational movement of the support plate 6 on the base support 5 is achieved by means of an electric drive 8. The electrical drive 8 is in operative connection via a pin transmission 9 which is connected to both the seat structure 3 and the support plate 6. A rotation of the electric drive 8 causes a rotation of a spindle 10 of the spindle drive 9, which initiates a translation movement. of the support plate 6 by means of a spindle carriage 11 surrounding the spindle 10. At its end made so as to face a front edge 31 of the seat structure 3, the spindle 10 is mounted on the support of base 5 in the form of a floating bearing 12. The support plate 6 is therefore, in the case of a seat structure 3 movable exclusively along the rails 4, movable in a forward direction VR and in a backwards direction RR opposite to the forward direction. In accordance with the usual conditions of a vehicle, the forward direction VR may be defined as towards a front part of the vehicle and the rearward direction RR may be defined as towards a rear part of the vehicle . The electric drive 8 in the form of an electric motor is positioned on a lower surface, oppositely located, or away from, the base support 5, of the seat structure 3, so that a Improved seat comfort can be obtained. The seat depth adjusting device 1 comprises a cover return guide 22 whose direction of action is directed towards the linear guide 7. In other words, the base support 5 comprises, for the reception of a retaining element 23 of the cover return guide 22, a groove-shaped guide 24, which is produced parallel to the linear guide 7 and consequently in the direction of a displacement of the support plate 6. The retaining element 23 is constructed in two parts and comprises a first resilient retaining member portion 25 in the form of a spiral spring and a second non-elastic retaining member portion 26 in the form of a bandaged. The first retainer 25 need not be in the form of a spiral spring, but could also be resilient in another form, preferably in the direction of its longitudinal extent. The second retaining element 26 does not have to be in the form of a strip, but could for example also be constructed in the form of a cable. The spiral spring 25 is attached to the base support 5 at one end and is connected to the band 26 at the other end. The strip 26 must be connected to the padding cover at its end opposite the spiral spring 25. For this purpose, a hook-shaped connecting element 27 is arranged at this end, so that a hook 28 of the connecting element 27 can be hung in a transverse seam not shown in more detail of the upholstery cover. In an exemplary embodiment not shown in more detail, the transverse seam comprises a hook-shaped receiving element, so that the connecting element 27, which is in the form of an eyelet, can be hung in the receiving element. Of course, the binding of the band 26 to the transversal seam can also be carried out in other variants. In order to provide uniform return of the upholstery cover, the seat depth adjusting device 1 comprises two retaining elements 23 made identically. Therefore, two guides 24 are configured on the base support 5. Preferably, a detachable connection is made between the resilient retaining member portion 25 and the non-resilient retaining member portion 26, so that simple assembly and disassembly can be carried out. The spiral spring 25 is received completely in the base support 5 throughout its longitudinal extent. The web 26 is guided in the guide 24 from its end connected to the spiral spring 25 between the base support 5 and the support plate 6, therefore between the first lower surface 16 of the support plate 6 and the first surface 17 of the base support 5, the strip 26 being disposed between guide rods 29 oriented in the longitudinal direction of the guide 24. The support plate 6 comprises for each strip 26 each time a passage opening 30, which is made so as to completely traverse the support plate 6, the strip 26 being disposed in the passage opening 30 so as to pass through the passage opening 30 or the support plate 6. Its end formed opposite the spring spiral 25, which is positioned on a second surface 32 of the support plate 6 formed opposite the first lower surface 16, is connected to the upholstery cover age with the aid of the connecting element 27, so that a functional connection between the upholstery cover, the support plate 6 and the base support 5 is produced. If the support plate 6 is moved, a cover return guide 22 continuous or, in other words, without grid (or without notches) is achieved by means of a floating bearing, which is made between the strip 26 and the support plate with the passage opening 30. That is, when the support plate is moved in the forward direction VR, the web end provided with the connecting member 27 is guided away from the second surface 32. Since the band 26 is non-elastically formed, a band portion positioned between the support plate 6 and the base support 5 is shortened. If the support plate 6 is moved in the rearward direction RR, the strip end is guided closer to the second surface 32 and the band portion positioned between the support plate 6 and the base support 5 is extended. A given elasticity during a so-called adjustment operation of the support plate 6 is obtained by means of the spiral spring 25, so that at any time a suitable tension of the padding cover is obtained.
    [0007] In view of the effective pretensioning of the stuffing cover, the spiral spring 25 is fixed to the base support 5 at one end of the base support 5 positioned opposite the leading edge 31, so that a deflection of the web 26 on the basic support 5 is carried out simply.
    [0008] The strip 26, which is received at the free end of the spiral spring 25, has in this embodiment, from the spiral spring 25, a direction of action almost perpendicular to a direction of rotation. 11 - traction of the spiral spring 25, since it is deflected on the base support 5 by means of the support plate 6. On almost a complete length of the base support 5, the band 26 is arranged between the guide rods 29 from an edge, turned towards the front edge 31, from the base support 5 to an edge, opposite the front edge 31, of the base support 5. A further deflection of the The direction of action of the web 26 is made due to the positioning in the passage aperture 30. The aperture 30 is configured in a region of the support plate 6, which is opposite to the leading edge 31. The angle of the strip 26 in the area of the passage opening 30 depends on the positioning of the support plate 6. Because of the guidance, the band 26 has in its longitudinal extent at least two changes of direction of action.
    [0009] Not only the base support 5 but also the support plate 6 are produced from a plastic material and have a honeycomb-shaped support structure, so that the structural parts 5, 6 are performed relatively thinly and therefore lightly, i.e. so as to have a low weight, while having a high stability. In an exemplary embodiment not shown in greater detail, the spiral spring 25 is equipped with a damping pipe. In a further exemplary embodiment not shown in more detail, an additional deflection edge is provided on the base support 5 in the region near the passage opening 30, so that use of the support plate is possible not only for front seats but also for rear seats. Of course, the invention is not limited to the embodiments described and shown in the accompanying drawings. Modifications are possible, particularly from the point of view of the constitution of the various elements or by substitution of technical equivalents, without departing from the scope of the invention.
    权利要求:
    Claims (12)
    [0001]
    REVENDICATIONS1. A seat depth adjusting device for a vehicle seat comprising a seat structure (3), the seat structure (3) comprising a support plate (6) movable relatively to the seat structure (3), and the support plate (6) being relatively movable relative to the seat structure (3) by means of a linear guide (7) of the seat structure (3), and the seat structure (3) being constructed to receive a cushion cover, and the cushion cover being prestressed with a cover return guide (22), and the cover return guide (22) being in operative connection with the cover plate carrier (6), characterized in that the cover return guide (22) is connected to the support plate (6) in a continuously positionable manner.
    [0002]
    A seat depth adjusting device according to claim 1, characterized in that the cover return guide (22) comprises a retaining element (23), which can be connected to the cushion cover, the element retainer (23) being fixedly connected to the seat structure (3).
    [0003]
    Seat depth adjustment device according to claim 1 or 2, characterized in that the seat structure (3) comprises a base support (5) which can be fixedly connected to the seat structure (3), the linear guide being formed in the base support (5) and a retaining element (23) of the cover return guide (22) being fixed thereto.
    [0004]
    Seat depth adjusting device according to one of the preceding claims, characterized in that the cover return guide (22) comprises a two-part retaining element (23) comprising a first element part. retainer (25) and a second retainer portion (26).
    [0005]
    Seat depth adjusting device according to claim 4, characterized in that the first retaining element part (25) is an elastic element for prestressing and the second retaining element part (26) is a non-elastic element for guiding.
    [0006]
    A seat depth adjusting device according to claim 4 or 5, characterized in that the first holding element portion (25) is connected at one end to the base support (5) and, at the other end to the second retainer portion (26), the second retainer portion (26) being connected at one end to the first retainer portion (25) and at the other end, the padding cover.
    [0007]
    Seat depth adjuster according to one of Claims 4 to 6, characterized in that the first retaining element part (25) is in the form of a spiral spring.
    [0008]
    Seat depth adjusting device according to one of claims 4 to 7, characterized in that the second retaining element part (26) has at least two changes of direction of action.
    [0009]
    A seat depth adjusting device according to any one of the preceding claims, characterized in that the cover return guide (22) comprises a damping pipe.
    [0010]
    Seat depth adjusting device according to one of the preceding claims, characterized in that the cover return guide (22) comprises a connecting element (27) for detachable connection to a transverse seam of the seat. padding cover.
    [0011]
    Seat depth adjusting device according to one of the preceding claims, characterized in that the cover return guide (22) provides a functional connection between the cushion cover, the support plate (6) and the seat cover (22). basic support (5). 25
    [0012]
    A seat depth adjusting device according to any of the preceding claims, characterized in that the cover return guide (22) is constructed to pass completely through the support plate (6), the support plate (6) comprising a passage opening (30). 30
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    同族专利:
    公开号 | 公开日
    DE102014107925A1|2015-12-17|
    GB2527928B|2017-03-08|
    FR3021916B1|2019-05-31|
    GB201509125D0|2015-07-15|
    GB2527928A|2016-01-06|
    US20150352980A1|2015-12-10|
    US9616775B2|2017-04-11|
    CN105291899B|2018-06-01|
    CN105291899A|2016-02-03|
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    DE102018217095A1|2018-10-05|2020-04-09|Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Coburg|Vehicle seat with a seat depth adjustment device|
    法律状态:
    2016-06-27| PLFP| Fee payment|Year of fee payment: 2 |
    2017-06-21| PLFP| Fee payment|Year of fee payment: 3 |
    2018-02-16| PLSC| Search report ready|Effective date: 20180216 |
    2018-06-26| PLFP| Fee payment|Year of fee payment: 4 |
    2019-06-19| PLFP| Fee payment|Year of fee payment: 5 |
    2021-03-12| ST| Notification of lapse|Effective date: 20210205 |
    优先权:
    申请号 | 申请日 | 专利标题
    DE102014107925.6A|DE102014107925A1|2014-06-05|2014-06-05|Seat depth adjustment device for a vehicle seat|
    DE102014107925.6|2014-06-05|
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