• 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:
    An adjusting device (22), in particular for adjusting the height of a vehicle seat (1), comprising a flange (26), a toothed sector (40) pivotally mounted on the flange (26), and a pinion ( 32) pivotally mounted on the flange (26), the pinion (32) meshing with the toothed sector (40). The toothed sector (40) comprises a first toothed portion (46) and a second toothed portion (48), the first toothed portion (46) having a reduced tooth profile relative to the tooth profile of the second toothed portion (48). , so that the first toothed portion (46) allows engagement of the pinion (32) with the toothed sector (40). Method for mounting such an adjustment device and vehicle seat comprising such an adjustment device.
    公开号:FR3028463A1
    申请号:FR1461197
    申请日:2014-11-19
    公开日:2016-05-20
    发明作者:Sebastien Seille；Veronique Leroy
    申请人:Faurecia Sieges dAutomobile SA；
    IPC主号:
    专利说明:

    [0001] 1 adjusting device, method for mounting an adjusting device, and vehicle seat comprising an adjusting device.
    [0002] The present invention relates to adjustment devices, in particular for the height adjustment of a vehicle seat mounted on a support assembly, the methods for mounting such adjustment devices and the vehicle seats comprising such devices.
    [0003] More particularly, the invention relates to an adjusting device comprising a flange, a toothed sector pivotally mounted on the flange and a pinion pivotally mounted on the flange, the pinion meshing with the toothed sector.
    [0004] Such adjustment devices are known in the state of the art, and their use gives rather satisfaction. However, devices of the state of the art require to use when mounting the adjustment device an attached tool to compensate for the clearance between the pinion and the toothed sector. The use of an attached tool makes it possible to avoid assembly constraints inside the device and to compensate for the clearance between the pinion and the toothed sector, in particular by moving the pinion. However, the use of this tool report imposes an additional mounting step, which increases in particular the mounting time and plastic deformation of some parts, which can cause areas of weakening materials. The present invention aims in particular to further improve the existing adjustment devices, in particular to improve the mounting conditions and to enhance the robustness of this type of adjustment devices. For this purpose, according to the invention, an adjusting device of the kind in question is characterized in that the toothed sector 3028463 comprises a first toothed portion and a second toothed portion, the first toothed portion comprising a tooth profile reduced by relative to the tooth profile of the second toothed portion, so that the first toothed portion allows engagement of the pinion with the toothed sector. With these arrangements, a device is provided for direct assembly between the pinion and the toothed sector without adding a step when mounting the adjusting device. The second toothed portion has a "normal" operating gear profile. Thus, it is not necessary to move the pinion in translation to bring the toothing of the pinion of the toothing of the toothed sector after the engagement of the pinion and the toothed sector. In addition, these provisions allow the formation of a more robust adjustment device, especially in case of sudden shock by allowing the pinion to be in direct relationship with the flange. In preferred embodiments of the invention, one or more of the following provisions may be used in addition: the first tooth portion extends over one or two teeth of the toothed sector; . The first tooth portion is not very wide, which makes it possible in particular to maintain a large functional area of use; the first toothed portion is arranged at one end of the toothed sector; the first toothed portion is arranged in the middle of the toothed sector; The flange comprises a circular orifice with a central orifice axis, the pinion being housed in the orifice, in which the pinion is rotatable about a central axis of the pinion, and in which the central pin of orifice is merged with the central pinion axis.
    [0005] The orifice ensures a precise position of the pinion in the flange; the pinion engages with the first toothed portion in a transverse direction, the transverse direction being that of the central pinion axis; - The device comprises a stop associated with the toothed sector, said stop having a stop face adapted to engage the pinion meshing with the second toothed portion. The stop enables the meshing pinion to be retained in the second toothed portion and prevents meshing of the pinion with the first toothed portion during the "normal" operation of the adjustment device; a plate is fixed on the flange, the pinion and the toothed sector extending between the flange and the plate. The plate blocks a translation of the pinion and the toothed sector in particular in a transverse direction; - The toothed sector is monobloc, the first toothed portion being continuous with the second tooth portion. The toothed sector is formed in one piece; The toothed sector comprises a first and a second distinct part, the first and second parts being assembled with each other to form the toothed sector; the first and second parts are assembled in the same plane; the first and second pieces are assembled in parallel planes; - The first piece of the pinion forms a stop, said stop having a stop face adapted to hold the pinion meshing with the second toothed portion; the second part of the pinion comprises the first toothed portion, the first piece of the pinion comprises a part of the second toothed portion, and the portion of the second toothed portion on the first piece of the pinion is intended to come into recovery; the first toothed portion of the second part of the pinion so as to ensure tooth serration continuity of the toothed sector when the first and second parts are assembled; The second part of the pinion comprises the first toothed portion and a portion of the second toothed portion; the first toothed portion is arranged at a distance from the toothed ends of the toothed sector.
    [0006] The present invention also relates to a method of mounting an adjusting device comprising a pinion and a toothed sector comprising a first toothed portion with which the pinion engages to allow the assembly of the pinion and the toothed sector and a second toothed portion, the first toothed portion having a reduced tooth profile with respect to the tooth profile of the second toothed portion, and comprising the steps of: - providing: - a flange, - the toothed sector comprising the first toothed portion and the second toothed portion toothed portion, the first toothed portion having a reduced tooth profile with respect to the tooth profile of the second toothed portion, - the pinion, - mounting the toothed sector pivoting on the flange, - mounting the pinion pivoting on the flange, - assemble the pinion and the toothed sector by meshing the pinion with the first toothed portion so that the pinion engages with the first portion toothed, the pinion being engaged in the transverse direction with the first toothed portion. In one embodiment, the pinion is rotated to engage the pinion with the second toothed portion. In one embodiment, a cross member extending in a transverse direction is provided, then the toothed sector is fixed on the crossmember, then the movable crosshead is assembled in rotation on the flange, an orifice in the flange is provided, mount the pinion in the hole. In one embodiment, there is provided a step of fixing a plate for locking the pinion and the toothed sector in translation in a transverse direction. In an additional embodiment, the method for mounting may further comprise a step of fixing a stop to prevent the return of the pinion meshing with the first toothed portion. The present invention also relates to a vehicle seat comprising a seat comprising a frame, said seat being adjustable in height by a raising device and an adjusting device as previously described, the flange of the adjustment device (22) forming a lateral flange, being secured to the frame, and the adjusting device controlling the raising device. According to a complementary embodiment, the seat 25 further comprises a crosspiece pivotally mounted on the flange, the toothed sector being secured to the cross member, and wherein the raising device comprises riser rods arranged on either side of the seat and adapted to be mounted on the one hand pivoting on a fixed structure of the vehicle and on the other hand integral with the crossmember, meshing of the pinion in the toothed sector causing the pivoting of the crossmember and the displacement of the connecting rods . Other features and advantages of the invention will become apparent from the following description of one of its embodiments, given by way of non-limiting example, with reference to the accompanying drawings. In the drawings: - Figure 1 is a schematic view of a vehicle seat 5 whose seat is adjustable in height by means of a control device according to one embodiment of the invention, - Figure 2 is a perspective view of a part of the seat of FIG. 1 showing the adjusting device comprising a flange, a pinion and a toothed sector according to a first embodiment; FIGS. 3A to 3D are views representing steps of FIG. 4 is a view of the flange of FIG. 2, FIG. 5 is a view of the flange of FIG. 4 in which the pinion is housed, FIGS. 6B are diagrammatic views respectively showing the engagement by play with the pinion and the first toothed portion and the meshing without substantial backlash of the pinion and the second toothed portion; FIGS. 7A and 7B show two parts of FIG. 'a sector geared In a second embodiment, FIG. 7C shows a part of a toothed sector according to an alternative embodiment of FIG. 7B; FIGS. 8A and 8B show the toothed sector according to the second embodiment in an assembly position and in a position of use, the two parts of FIGS. 7A and 7B being assembled, FIGS. 9A to 9E represent mounting steps of a vehicle seat cushion comprising the adjuster of Fig. 1.
    [0007] In the various figures, the same references 3028463 7 designate identical or similar elements. It should be noted that, in the figures, the structural and / or functional elements common to the various embodiments may have the same references.
    [0008] Thus, unless otherwise stated, such elements have identical structural, dimensional and material properties. For the sake of clarity, only the elements useful for understanding the described embodiments have been shown and will be detailed. In the following description, when reference is made to absolute position qualifiers, such as the terms 'before', 'backward', 'up', 'down', 'left', 'right', etc., or relative, such as the terms 'above', 15 'below', 'above', 'below', etc., or with qualifiers for orientation, reference is made to a seat in a normal position of use of this one in the direction of ordinary progression of the vehicle. FIG. 1 is a schematic view of a seat 1, 20 in particular a vehicle seat comprising a backrest 10 mounted on a seat 12. The seat 12 is itself mounted to move in translation on a fixed structure 14, in particular a seat floor of the vehicle. The seat 12 is connected to slides 16 by means of a raising device 18 known per se, for adjusting the height of the seat 12. The raising device 18 is for example composed of extension rods 20 arranged on either side of the seat 12 to adjust the height of the seat 12. This raising device 18 is driven by an adjustment device 22. The adjustment device 22 can itself be driven by a control member 24 such as a control lever or other mechanical member pivotally mounted about a horizontal transverse axis of rotation Y1.
    [0009] The control member 24 is for example movable 3028463 8 in a first angular direction R1 in a first angular sector S1 and in a second angular direction R2 in a second angular sector S2. This controller 24 is conventional and will not be described in more detail here.
    [0010] As shown in FIG. 2, the adjusting device 22 comprises a transmission mechanism fixed on a flange 26 of a frame 28 of generally planar shape. The frame 28 is, in the example described, a frame of the seat 12, in particular a metal frame.
    [0011] More specifically, the adjusting device 22 comprises the flange 26, which, in the example described, forms a lateral flange. The flange 26 is for example provided with an orifice 30. FIG. 4 shows in more detail the flange 26. The flange 26 comprises the orifice 30 as well as a second housing. The flange 26 is of generally flat shape. The adjustment device 22 further comprises a pinion 32. The pinion 32 is, in this case, housed in the orifice 30 of the flange 26. The pinion 32 is notably housed in the orifice 30 which is mobile in rotation around a central axis of pinion Y2. The orifice 30 is preferably circular comprises a central axis of orifice Y3. The central axis of orifice Y3 coincides with the central axis of pinion Y2. In other words, the insertion of the pinion 32 into the orifice 30 allows self-centering of the pinion 32 relative to the flange 26 and ensures precise positioning of the pinion 32 inside the flange 26. A bearing ( not shown) can be provided to ensure the rotational movement of the pinion 32 relative to the flange 26. The pinion 32 is rotated by the control member 24. Figure 5 is a perspective view of the flange 26 of the Figure 4 in which the pinion 32 is pivotally mounted. The pinion 32, pivotally mounted on the flange 26 is intended to remain substantially immobile in translation 35 in the plane of the flange 26.
    [0012] The seat 1, as shown in Figure 2, also comprises a cross member 34. The cross member 34 extends in a transverse direction Y. The transverse direction Y may substantially form a normal to the plane 5 of the flange 26. The cross 34 has a first and a second end 36, 38 in the transverse direction Y. The cross member 34 is pivotally mounted relative to the flange 26. For example, the first end 36 of the cross member 34 is rotatably assembled on The flange 26. An orifice or a cavity may be provided inside the flange 26 to receive the first end 36 of the crosspiece 34 movable in rotation. The adjustment device also comprises a toothed sector 40. The toothed sector 40 is pivotally mounted on the flange 26. The toothed sector may, for example, be fixed on the crossmember 34. The toothed sector 40 may be fixed on the crossmember 34 near the first end 36 of the cross member 34. In this case, the toothed sector 40 is fixed on the cross member 34 near the first end 36 of the cross member 34 before the fixing of the cross member 34 on the flange 26 In other words, the toothed sector 40 is arranged between the flange 26 and the second end 38 of the cross member 34. The toothed sector 40 can extend substantially in a sector plane and the normal to this plane can be the transverse direction Y. The toothed sector 40 may comprise a toothing which extends over a portion of an arc of a circle, for example a portion of an arc of less than 90 °, or of the order of 45 °. . The toothed sector 40 may comprise a first end of toothing 42 and a second end of toothing 44. The toothed sector 40 includes a first toothed portion 46 and a second toothed portion 48. More particularly, the first toothed portion 46 and the toothed portion 46. second toothed portion 48 are shaped so that the pinion 32 engages (or in other words fits, mates with) the first toothed portion 46. The second toothed portion 48 has a "usual" toothing for 5 l meshing with the pinion 32. The first and second toothed portions 46, 48 are, in this case, different. In the present case, the toothed portions 46, different toothing, different and / or different For example, toothed portions 46, 48 have for example the first and second 48 have profiles or forms such that a tooth height e thickness or width of teeth in a possible embodiment, the first and second different teeth. The first toothed portion 46 will have a toothing that may correspond to that of the second tooth portion, on which an excess thickness has been removed. The toothed sector can be made in such a way that a complete external toothing is machined over the entire length of the toothed sector. Subsequently, the thickness of the tooth portion intended to become the first toothed portion 46 of the toothed sector 40 is reduced. The tooth thickness of the first toothed portion 46 can be reduced with respect to the second toothed portion 48. while re-machining 25 only the first toothed portion 46 of the toothed sector 40. However, other methods of obtaining a reduced toothing for the first toothed portion 46 with respect to the second toothed portion 48 can be used, with for example a direct machining of two different toothed portions 30, one being reduced relative to the other. The toothed sector 40 is intended to come into mesh with the pinion 32 to transmit a rotational movement. The first toothed portion 46 allows toothed sector 40 and pinion 32 to engage with each other.
    [0013] More particularly, the first toothed portion 46 allows the toothed sector 40 and the pinion 32 to engage with each other in the transverse direction Y (visible in particular in FIG. 4). The first toothed portion 46 allows the toothed sector 40 and the pinion 32 to be joined to each other. The reduced toothing of the first toothed portion ensures between the teeth of the pinion 32 and the first toothed portion 46 substantially a clearance J (shown in Figure & A). This clearance J allows meshing and assembly of the pinion 32 on the toothed sector 40. For example, the clearance J is of the order of 0.8 millimeters. Thus, the first toothed portion 46 forms a functional assembly zone Za. In other words, the shape of the toothing of the first toothed portion 46 allows assembly and assembly of the pinion 32 and the toothed sector 40. In this case, when the first toothed portion 46 has a tooth thickness less than the tooth thickness of the second toothed portion 48, it is possible to directly engage the pinion 32 with the toothed sector 40. In a first step, for the assembly of the pinion 32 and the toothed sector 40, engagement is with the first toothed portion 46 of the toothed sector 40. The reduced toothing of the first toothed portion 46 can be dimensioned so that the pinion 32 engages with the first tooth portion 46 but can also, in a possible embodiment of the invention, meshing with this first toothed portion 46, in particular thanks to the presence of the second toothed portion 48 which limits the clearance J.
    [0014] In another embodiment of the invention, it may be useful to limit access to the first toothed portion 46 when using the system consisting of toothed sector 40 and pinion 32. For example, the presence of a clearance between the pinion 32 and the toothed sector 40 in use "normal", that is to say when using the adjustment device 22 for adjusting the height of the seat 12 may be at avoid if it is too important, mainly to reduce the wear of the equipment, the vibrations, the loudness and to increase the security. Also, in one embodiment, the second toothed portion 48 is provided to form a functional area of use Zu. The second toothed portion 48 allows meshing of the pinion 32 and the toothed sector 40, as the pinion 32 meshes with the second toothed portion 48, as shown in FIG. 6B. In these two embodiments (by limiting the return of the pinion to the first toothed portion 46 in the operating mode or by dimensioning the toothing of the first toothed portion 46 so that it allows the engagement in the assembly mode and the In gearing mode), the pinion 32 does not have to be translated in the X direction (visible in FIG. 3B) after its assembly (or engagement with the toothed sector 40) to be brought closer to the toothed sector. 40 to allow use without play and a meshing 32 of the pinion and the toothed sector 40. In this case, as shown in FIGS. 6A and 6B in particular, there is continuity between the first toothed portion 46 and the second portion toothed 48 so that the pinion 32 engages first with the first toothed portion 46 and is then rotated to continue its meshing with the toothed sector 40 to reach the second toothed portion 48. For example, the first toothed portion 46 The toothed portion 46 extends on one to two teeth of the toothed sector 40. As shown in FIGS. 6A and 6B, an extra thickness is removed on one to two teeth of the toothed sector 40 to form the first toothed portion 46. For example, as seen in FIGS. 6A and 6B, an excess thickness has been removed on the first tooth and on a portion of the second tooth of the toothed sector 40. In this case, to form the first toothed portion 46, removes a thickness on the first tooth and / or on the hollow present between the first tooth and the second tooth and / or on the second tooth. For example, an extra thickness is removed on the first two teeth which then form the first toothed portion 46. However, it would also be possible to remove a thickening only on the first tooth.
    [0015] The first toothed portion 46 has been described arranged on one end of the toothed sector 40. However, it would be possible to provide the first toothed portion 46 (which forms the assembly zone) on any part of the toothed sector. For example, the first toothed portion 46 may be spaced apart from the ends of the toothed sector. In this configuration it may be advantageous to provide that the reduced toothing of the first toothed portion is dimensioned so that it allows both the engagement (in assembly mode) and the meshing (in 20 mode). use). A portion of intermediate toothing may be provided between the first toothed portion 46 (which forms the assembly zone Za) and the second toothed portion 48 (which forms the functional zone of use Zu).
    [0016] The adjustment device 22 may also comprise a plate 50. The plate 50 makes it possible to hold the pinion 32 and / or the toothed sector 40 in position in the transverse direction Y. In particular, the plate 50 prevents a translation of the pinion 32 and / or the toothed sector 40 in the transverse direction Y towards the second end 38 of the cross member 34. The plate 50 is for example fixed to the side plate 26 by means of two fixing screws. However, other methods of attachment such as latching or gluing may be contemplated. The plate 50 may be provided with an orifice 52 for receiving an end portion of the pinion 32. In this case, the plate 50 is fixed on the flange 26, the pinion 32 and the toothed sector 40 extending between the flange 26 and the deck 50.
    [0017] A stop 54 may be provided in one embodiment of the adjusting device 22 for holding the gear 32 meshing in the second toothed portion 48 which forms the functional area of use Zu. The abutment 54 is for example positioned after the mounting of the pinion 32 and the toothed sector 40. The abutment 54 may be a mechanical part attached to the device after the mounting of the pinion 32 and the first toothed portion 46 of the toothed sector 40. The plate 50 may optionally be provided with a recess 56 to partially receive the abutment 54 or allow the abutment to form a support for the toothed sector 40, so that the pinion can not be operated again in the first toothed portion 46. The abutment 54 can also be directly integrated for example on the toothing of the toothed sector 40.
    [0018] However, the presence of such an abutment can be avoided if the toothing of the first toothed portion 46 is dimensioned so as to allow assembly and "normal" use operation. According to the embodiment, shown in particular in FIGS. 2, 3A, 3B, 3C, 3D, 6A, 6B, the toothed sector is in one piece. The first toothed portion 46 is continuous with the second toothed portion 48. In other words, the first toothed portion 46 and in the extension of the second toothed portion 48.
    [0019] In alternative embodiments, as mentioned above, the first toothed portion 46 may be arranged either towards the first end of toothing 42 or towards the second end of toothing 44. As shown in FIGS. 2, 3A, 3B, 3C, 3D, 6A, 6B, the first toothed portion 46 is arranged towards the first tooth end 3028463 42. The first toothed portion 46 may also be arranged between the second toothed portion 48. Thus, the second toothed portion 48 and / or or the first tooth portion 46 may be in two parts (on two non-contiguous areas of the toothed sector). The first toothed portion 46 has a reduced tooth profile (smaller or smaller) than the tooth profile of the second toothed portion 48. As shown in FIGS. 6A, 6B, the tooth profile of the first toothed portion 46 may be cut more deeply than the tooth profile of the second toothed portion 48. Thus, a game will allow the engagement of the pinion 32 with the first toothed portion 46, which will be reduced 15 during the meshing of the pinion 32 with the second toothed portion 48. According to another embodiment, shown in particular in Figures 7A, 7B, 8A, 8B, the toothed sector 40 comprises a first and a second part 58, 60, 20 distinct. The first and second parts 58, 60 may be assembled together to form the toothed sector 40. In other words, the toothed sector 40 may be a double sector. As can be seen in FIG. 7B, the first toothed portion 46 may be arranged on one end of the toothing of the second piece 60. However, in an alternative embodiment, shown in FIG. 7C, the first toothed portion 46 may be arranged remote from the toothing ends of the second piece 60. For example, the first toothed portion 46 is arranged in the middle of the toothing of the second piece 60 and is surrounded on both sides by second toothed portions 48. 8A and 8B, the first part 58 is movable relative to the second part 60 about a locking axis Y4 between an assembly position, in which the toothed sector 40 and the pinion 32 can be assembled by engagement and a functional position, in which the toothed sector 40 and the pinion 32 mesh, either on the toothed sector 40 as a whole, or on a portion of the sect A toothed, which is an area of use of the toothed sector 40. The assembly of the first and second parts 58, 60 is for example made with fixing holes 62, 64, 66 and fixing pins.
    [0020] For example, as shown in FIGS. 7A and 7B, each of the first and second parts 58, 60 has first and second ends. The first end of the first piece 58 may comprise a fixing slot 68. The second end of the first piece 58 may comprise a fixing orifice 66. The first and second ends of the second piece 60 each comprise a fixing orifice 62 64. As shown in FIG. 8A, the second end of the first piece 58 is fixed on the second end of the second piece 60 by means of a fastening pin passing through the fixing holes 62, 66 of the first part. and second pieces 58, 60. The axis of these orifices forms the locking pin Y4 and allows the rotational movement of the first piece 58 with respect to the second piece 60. The first end of the first piece 58 is fixed on the first end of the second piece 60 by means of a fixing pin passing through the fixing slot 68 and the fixing orifice 66. The mounting slot 68 autor ise a clearance of the fixing pin 30 along the fixing slot 68, which ensures an angular displacement of the first part 58 relative to the second part 60 around the locking axis Y4. The toothing of the first part 58 is intended to cover the toothing of the second part 60. The overlapping of the teeth of the first and second parts 58, 60 can be done either in the same plane or in parallel planes. As shown in FIG. 8A, when the pinion 32 and the toothed sector 40 are assembled, the first piece 58 is shifted (or in other words set back) relative to the second piece 60. In this mode the first toothed portion 46 is provided on the second piece 60. The first piece 58 is offset with respect to the second piece 60, the toothing of the second piece 60, and more particularly the first toothed portion 46 is all firstly in contact with the toothing of the pinion 32. The pinion 32 is then maneuvered so as to come into a toothed region of the toothed sector 40 which forms the second toothed portion 48. For example, as shown in FIG. 8B, the pinion 32 is manipulated to engage a toothed zone common to the first and second parts which forms the second toothed portion 48. Next, the first part 58 is displaced, in particular in rotation, towards the operating position. t, as shown in FIG. 8B so that the teeth of the first and second parts correspond to the vicinity of the first end of toothing 42. The rotation of the first part around the locking axis Y4 is performed after the meshing of the pinion 32 with the second toothed portion 48. The rotation of the first piece around the locking pin Y4 can be performed after the installation of the plate 50. In the variant embodiment shown in FIGS. 8B, the first piece 58 overlaps the second piece 60 in the operating position on the set of teeth of the second piece 60. However, in alternative embodiments, the first piece 58 may come to overlap with one another. only portion 35 of the second piece 60. For example the first part 18 may overlap the first toothed portion 46 forming the assembly area only. In the variant embodiment of FIG. 7B in particular, in the operating position, the first piece 58 may form a stop for the pinion 32. For example, one of the teeth of the first piece 58 may be oversized (larger) for forming a stop by preventing a meshing of the pinion 32. In this case, two stops may be provided on the toothed sector 40 to maintain the pinion 32 meshing in the second toothed portion 48 and thus prevent a disengagement of the pinion 32 and the toothed sector 40. In an alternative embodiment, the first part 58 has no teeth. The second piece comprises the first toothed portion 46 and the second toothed portion 48. The first piece can form only a stop which is movable between an inactive position (or assembly position), in which it does not interact with the pinion. 32 and is located at a distance from the toothing of the second piece 60, and an active position (or operating position), in which it forces the pinion 32 to remain in engagement with the second toothed portion 48 (it prevents the pinion 32 to return to engage with the first tooth portion 46). The first toothed portion 46, forming the assembly area of the pinion 32 and the toothed sector 40, may be located on one end of the second piece 60 (as can be seen in FIG. 7B), or in the middle of the set of teeth. the second piece 60 (as visible in Figure 7C). In the variant embodiment of FIG. 7C, the first toothed portion 46 is at a distance from the toothing ends of the second piece 60. The pinion 32 is thus engaged on the first toothed portion 46. meshing the pinion with a portion of the second toothed portion 48 of the second piece 60. Then, it comes to put in position the first piece 58 which completes the toothing of the first piece. More particularly, the toothing of the first piece, which is formed by the second toothed portion, overlaps the first toothed portion 46 of the second piece 60. Thus, when the first and second pieces are positioned in the operating position, the pinion 32 10 can move over the set of teeth of toothed sector 40 and mesh with the second toothed portion only (the first tooth portion being covered by the second). A latch member 70 may be attached to the toothed sector 40 to move the first member 58 from the assembly position to the operating position. FIGS. 3A to 3D show mounting steps of the adjusting device 22. After fixing the toothed sector 40 on the connecting rod, the moving crossbar 34 is assembled in rotation on the flange 26. The pinion 32 is then inserted through the orifice 30 in the transverse direction Y. It is then begin to assemble the pinion 32 and the toothed sector 40 by coming to match the first end 25 of toothing 42 of the toothed sector 40 which, as shown in Figures 3A to 3D , comprises the first toothed portion 46 with the pinion 32. The assembly of the pinion 32 and the toothed sector 40, coming to match the first tooth end 42 of the toothed sector 40, is formed during the translation (or implementation). place) of the pinion 32 in the transverse direction Y. In other words, the pinion 32 engages with the first toothed portion 46 of the toothed sector 40 in the transverse direction Y. The game J allows the engagement of the pinion 32 32 with the first toothed portion 46 in the transverse direction Y. The pinion 32 is then rotated about the central axis of the pinion Y2 so as to assemble the pinion 32 and the toothed sector 40. as shown in FIG. 3A.
    [0021] In a second step, the plate 50 is fixed to the flange 26 so as to prevent any translation of the toothed sector 40 and the pinion 32 in the transverse direction, as can be seen in FIG. 3B. In a third step, the pinion 32 is maneuvered so as to continue the meshing of the pinion 32 on the toothed sector 40 and so as to allow the passage of a meshing on the first toothed portion 46 towards a meshing on the second toothed portion 48, as visible in FIG. 3C.
    [0022] In a fourth possible step, when the pinion 32 meshes with the second toothed portion 48, and therefore in the operating zone Zu, a stop is fixed so as to prevent the pinion 32 from returning to the first toothed portion 46, as shown in FIG. 20 3D. Such an assembly is particularly easy to implement and does not require the use of any specific tools reported. FIGS. 9A to 9E show steps for mounting a seat comprising the adjusting device 22. In a first step, as shown in FIG. 9A, the cross member 34 is provided on which the toothed sector is fixed towards the first end. 40. The movable cross member 34 is assembled in rotation with the flange 26 and a second side flange 26, as shown in FIG. 9B. FIG. 9B also illustrates the installation of a second crossmember 34. FIG. 9C is different from FIG. 9B in that a seat frame 28 is assembled on the second crossmember 34 between the two side 26s flanges . In FIG. 9D, the slides and the raising mechanism are set in position. FIG. 9E shows the adjustment device 22 as previously described mounted on the flange 26. Thus, the meshing of the pinion 32 in the toothed sector 40 will cause the pivoting of the crossmember 34 and the displacement of the connecting rods. risers 20 so as to move the seat base relative to a fixed structure of the vehicle, particularly with respect to the floor of the vehicle. In the foregoing description, the adjustment device 22 has been described in its use on a vehicle seat. However, the adjustment device 22 described can be integrated with other structures, whether or not a vehicle. 15
    权利要求:
    Claims (14)
    [0001]
    REVENDICATIONS1. Adjusting device (22), in particular for adjusting the height of a vehicle seat (1), comprising: - a flange (26), a sector gear (40) pivotally mounted on the flange (26), and - a pinion (32) pivotally mounted on the flange (26), the pinion (32) meshing with the toothed sector (40), characterized in that the toothed sector (40) comprises a first toothed portion (46) and a second toothed portion (48), the first toothed portion (46) having a reduced tooth profile with respect to the tooth profile of the second toothed portion (48), so that the first toothed portion (46) allows engagement pinion (32) with the toothed sector (40).
    [0002]
    2. An adjusting device (22) according to claim 1, wherein the flange (26) has a hole (30), circular, with a central axis of the orifice (Y3), the pinion (32) being housed in the orifice (30), in which the pinion (32) is rotatable about a central pinion axis (Y2), in which the central orifice axis (Y3) coincides with the central axis of the pinion (Y2). pinion (Y2), and in which the pinion (32) engages with the first toothed portion (46) in a transverse direction (Y), the transverse direction (Y) being that of the pinion central axis (Y2) . 30
    [0003]
    An adjusting device (22) according to any one of the preceding claims, wherein a plate (50) is fixed to the flange (26), the pinion (32) and the toothed sector (40) extending between the flange (26) and the plate. 35
    [0004]
    4. Adjusting device (22) according to any one of the preceding claims, wherein the toothed sector (40) is in one piece, the first tooth portion (46) being continuous with the second toothed portion (48).
    [0005]
    5. - adjusting device (22) according to the preceding claim further comprising a stop (54) associated with the toothed sector (40), said stop (54) having an abutment face adapted to hold the pinion (32) in meshing with the second toothed portion (48) -
    [0006]
    An adjusting device (22) as claimed in any one of claims 1 to 3, wherein the toothed sector (40) has a first (58) and a second (60) separate part, the first and second parts (58) , 60) being assembled with each other to form the toothed sector (40).
    [0007]
    7. Device according to claim 6, wherein the first piece (58) of the pinion (32) forms a stop (54), said stop (54) having an abutment face adapted to engage the pinion (32) meshing with the second toothed portion (48).
    [0008]
    8. Device according to claim 6, wherein the second part (60) of the pinion (32) comprises the first toothed portion (46), the first piece (58) of the pinion (32) comprises a portion of the second toothed portion ( 48), and the part of the second toothed portion (48) on the first piece (58) of the pinion (32) is intended to overlap the first toothed portion (46) of the second piece (60) of the pinion (32) so as to provide tooth serration continuity of the second toothed portion (48) over the entire toothed sector (40) when the first and second pieces (58, 60) are assembled.
    [0009]
    9. Device according to claim 8, wherein the first toothed portion (46) is arranged at a distance from the toothing ends of the toothed sector (40). 35
    [0010]
    A method of mounting an adjusting device 3028463 24 (22) comprising a pinion (32) and a toothed sector (40) comprising a first toothed portion (46) with which the pinion engages to allow the pinion assembly ( 32) and the toothed sector (40) and a second toothed portion (48), the first toothed portion (46) having a reduced tooth profile relative to the tooth profile of the second toothed portion (48), comprising the steps - provide: - a flange (26), - the toothed sector (40) comprising the first toothed portion (46) and the second toothed portion (48), the first toothed portion (46) having a reduced tooth profile by in relation to the tooth profile of the second toothed portion (48), - the pinion (32), - fit the toothed sector (40) pivoting on the flange (26), - mount the pivoting pinion (32) on the flange ( 26), - assemble the pinion (32) and the sector gear (40) by engaging the pinion (32) with the first gear toothed portion (46) so that the pinion (32) engages with the first toothed portion (46), the pinion (32) being engaged in the transverse direction (Y) with the first toothed portion (46), - maneuver the pinion (32) rotating to engage the pinion (32) with the second toothed portion (48).
    [0011]
    The method of claim 10, further comprising the steps of: providing a cross member (34) extending in a transverse direction (Y); securing the toothed sector (40) to the cross member (34); the crossbar (34) rotatable on the flange (26), - provide an orifice (30) in the flange (26), 35 - mount the pinion (32) in the orifice (30). 3028463 25
    [0012]
    12. The method of claim 10 or 11, wherein there is provided a step of fixing a plate (50) for locking the pinion (32) and the toothed sector (40) in translation in a transverse direction (Y). 5
    [0013]
    13. Vehicle seat (1) comprising - a seat (12) comprising an armature (28), said seat (12) being adjustable in height by a raising device (20), an adjusting device (22) according to the any one of claims 1 to 8, the flange (26) of the adjuster (22) forming a lateral flange being integral with the armature (28), and the adjuster (22) controlling the raises (20). 15
    [0014]
    14. Seat according to claim 13, further comprising a crosspiece (34) pivotally mounted on the flange (26), the toothed sector (40) being integral with the crosspiece (34), and wherein the raising device (20). comprises riser rods (20) arranged on either side of the seat (12) and adapted to be mounted on one hand pivoting on a fixed structure (14) of the vehicle and on the other hand integral with the crossbar (34), the meshing of the pinion (32) in the toothed sector (40) causing the pivoting of the crossbar (34) and the displacement of 25 risers (20).
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    同族专利:
    公开号 | 公开日
    FR3028463B1|2017-01-13|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    WO2000021779A1|1998-10-13|2000-04-20|Magna Seating Systems Inc.|Seat cushion height adjustment assembly|
    DE102005054503B3|2005-11-16|2007-06-06|Faurecia Autositze Gmbh|Height-adjustable motor vehicle seat has output band which sits on installation position and by rotating teeth of drive pinion against teeth of toothed segment of guide are pressed and are free of play|
    US20080023998A1|2006-07-28|2008-01-31|Derek Lindsay|Anti-backlash resistant gearing for a seat mechanism|US20170166095A1|2015-12-09|2017-06-15|GM Global Technology Operations LLC|Motor vehicle with height-adjustable seat|
    FR3055260A1|2016-08-30|2018-03-02|Peugeot Citroen Automobiles Sa|SUSPENSION DEVICE FOR SEAT OF MOTOR VEHICLE SEAT|
    FR3097175A1|2019-06-12|2020-12-18|Renault|Seat structure of a vehicle seat frame, vehicle seat and set of two seat structures|
    FR3108278A1|2020-03-23|2021-09-24|Faurecia Sièges d'Automobile|Motor vehicle seat adjustment mechanism.|
    US11235685B2|2018-07-25|2022-02-01|Keiper Seating Mechanisms Co., Ltd.|Vehicle seat|
    法律状态:
    2015-10-23| PLFP| Fee payment|Year of fee payment: 2 |
    2016-05-20| PLSC| Publication of the preliminary search report|Effective date: 20160520 |
    2016-10-24| PLFP| Fee payment|Year of fee payment: 3 |
    2017-10-20| PLFP| Fee payment|Year of fee payment: 4 |
    2018-10-24| PLFP| Fee payment|Year of fee payment: 5 |
    2019-10-22| PLFP| Fee payment|Year of fee payment: 6 |
    2020-10-21| PLFP| Fee payment|Year of fee payment: 7 |
    2021-10-20| PLFP| Fee payment|Year of fee payment: 8 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1461197A|FR3028463B1|2014-11-19|2014-11-19|ADJUSTING DEVICE, METHOD FOR MOUNTING AN ADJUSTING DEVICE, AND VEHICLE SEAT COMPRISING AN ADJUSTING DEVICE|FR1461197A| FR3028463B1|2014-11-19|2014-11-19|ADJUSTING DEVICE, METHOD FOR MOUNTING AN ADJUSTING DEVICE, AND VEHICLE SEAT COMPRISING AN ADJUSTING DEVICE|
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