• 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:
    A vehicle-up seat comprising a seat frame, a slide, a lift mechanism adapted to move the seat frame relative to the rail between a lowered position and a raised position, said lift mechanism comprising on each side of the seat at least one forward connecting rod, said forward connecting rod having a connecting rod body with an upper end connected to the armature and a lower end connected to the base, at least one forward connecting rod also comprising an outgrowth extending from the lower end, the protrusion extending opposite the slide, said connecting rod being adapted to deform in case of collision between a first state in which a game separates the slide and the protrusion whatever the position of the seat frame between the low position and the raised position, and a second state in which the protrusion is in contact at least locally with the sliding st.
    公开号:FR3056477A1
    申请号:FR1659386
    申请日:2016-09-29
    公开日:2018-03-30
    发明作者:Christian Couasnon；Sylvain DESCHAMPS
    申请人:Faurecia Sieges dAutomobile SA；
    IPC主号:
    专利说明:

    (54) BOOSTER SYSTEM FOR VEHICLE SEAT
    ©) A raised seat for a vehicle comprising a seat frame, a slide, a raise mechanism adapted to move the seat frame relative to the slide between a low position and a raised position, said raise mechanism comprising each side of the seat at least one front link, said front link having a link body with an upper end connected to the frame and a lower end connected to the base, at least one front link also comprising a protrusion extending from the lower end, the protrusion extending opposite the slide, said front link being adapted to deform in the event of an impact between a first state in which a clearance separates the slide and the protrusion whatever the position of the seat frame between the low position and the raised position, and a second state in which the protuberance is in contact at least locally with the slide.
    4a, 4b

    ι
    VEHICLE SEAT BOOSTER SYSTEM
    The present invention relates to liftable seats for a motor vehicle comprising a seat frame, a longitudinal slide, a raise mechanism adapted to move the seat frame relative to the longitudinal slide between a low position and a raised position, said raising mechanism comprising on each side of the seat at least one front connecting rod, said front connecting rod having a connecting rod body with an upper end connected to the frame and a lower end connected to the base.
    In the known prior art, such as for example the patent FR0702804, the front connecting rods of the raising mechanism have an elongated shape substantially symmetrical with respect to an axis perpendicular to the direction connecting the two ends.
    In the event of a frontal crash, it is common for the connecting rod to be subjected to a twist around the direction of travel of car X. There is also a risk of vertical crushing along the Z axis.
    It is therefore necessary to improve the raising mechanism to limit, in the event of a frontal crash, the lateral spillage of the seat and prevent the seat from sagging towards the door and / or towards the console. It is also necessary to avoid vertical sagging of the front part of the seat.
    For this, the invention proposes a raising seat for a motor vehicle in which at least one front connecting rod also comprises a protrusion extending from the lower end, the protrusion extending opposite the longitudinal slide, said front connecting rod being suitable for deform in the event of a shock between a first state in which a clearance separates the longitudinal slide and the projection regardless of the position of the seat frame between the low position and the raised position, and a second state in which the the protuberance is in contact at least locally with the longitudinal slide.
    Thanks to these provisions, in the event of an impact, the planar contact between the protuberance and the slide absorbs part of the force by limiting the deformation of the front connecting rod around the axis X and along Z. The clearance reserved between the 'protuberance and the slide makes it possible, in normal operation, to limit friction and therefore avoid premature wear of the surface of the protuberance and the noise nuisance linked to continuous friction.
    In various embodiments of the invention, one can optionally have recourse to one and / or the other of the following provisions:
    - According to one aspect, the shape of the protuberance is adapted to allow a flat support of the protuberance on the longitudinal slide during contact in the second state,
    - According to another aspect, the protrusion extends continuously from the body of the connecting rod before without discontinuity of material,
    - According to another aspect, the protuberance has a shape complementary to the shape of the slide locally,
    According to another aspect, the longitudinal slide comprises a movable profile and a fixed profile, the protrusion comprising a part opposite the fixed profile,
    - According to another aspect, the movable profile comprises a horizontal upper core and at least one lateral wing which extends substantially vertically downward from the horizontal upper core, the fixed profile comprises at least one horizontal wing which extends by a falling end wall, said falling end wall being opposite a lateral wing of the movable profile, the protrusion extending substantially parallel and near the horizontal wing of the fixed profile,
    According to another aspect, the protrusion comprises a first part opposite the movable profile and a second part opposite the fixed profile,
    - According to another aspect, the movable profile comprises a horizontal upper core and at least one lateral wing which extends substantially vertically downward from the horizontal upper core, the fixed profile comprising at least one horizontal wing which extends by a falling end wall, said falling end wall being opposite a lateral wing of the movable profile, the protrusion comprising a first substantially parallel portion and near the horizontal upper core of the movable profile, a second substantially parallel portion and near said lateral wing of the movable profile, and a third substantially parallel portion and near the horizontal wing of the fixed profile,
    - According to another aspect, the vehicle seat comprises a base surmounting the longitudinal slide, the base being connected to the front connecting rod by an axis, the third portion having an extension along the lower end of the body of the front connecting rod lower than the first portion and the second portion, the extension of the third portion along the lower end of the body of the front connecting rod corresponding to an angular portion around the axis between 60 ° and 120 °,
    According to another aspect, the end of the third portion has the shape of an arc of a circle,
    According to another aspect, the longitudinal slide comprises a movable profile and a fixed profile, the movable profile comprising a horizontal upper core and at least one lateral wing which extends substantially vertically downward from the horizontal upper core, the fixed section comprising at least one horizontal wing which is extended by a falling end wall, said falling end wall being opposite a side wing of the movable section, the protrusion being formed by a single portion which is both substantially parallel and near the lateral wing and substantially parallel and close to the horizontal wing,
    - According to another aspect, the protrusion extends along only part of the lower end of the body of the front connecting rod,
    - In another aspect, a free end of the projection has a shape adapted to maintain a substantially constant clearance between said free end and the longitudinal slide, during a stroke of the front rod to move the seat between the low position and the raised position, in the first state,
    - According to another aspect, the rear connecting rod also comprises a protrusion extending from the lower end of the rear connecting rod, the protrusion extending opposite the longitudinal slide.
    Other aspects, aims and advantages of the invention will appear on reading the following description of one of its embodiments, given by way of nonlimiting example with the aid of the accompanying drawings in which:
    FIGS. 1 a and 1 b are partial schematic views of a seat structure comprising a raising mechanism in the raised and lower position respectively,
    FIG. 2a is a partial schematic view of the device for driving the connecting rods,
    - Figure 2b shows a detail of the drive device of a front link, Figures 3a, 3b and 3c are cross sections of the front link mounted on the base between the slide and the seat frame in three different embodiments,
    - Figures 4a and 4b are side views of the front link in the lower position and in the raised position respectively in the first embodiment.
    The figure shows schematically and partially a vehicle seat comprising a seat, a backrest mounted on the seat, the whole being mounted on a slide 2 through a raising mechanism 4. In the present case, the slide 2 is surmounted by a base 3 on which the raising mechanism 4 is mounted.
    This raising mechanism 4 is designed to move the seat relative to the base in at least one substantially vertical direction Z.
    This mechanism enhances the intermediary of connecting rods 4a; 4b.
    with a frame
    By each is obtained by said connecting rods, the slide 2 and the frame 1 of example for the lower end is connected to the upper end is connected to the seat.
    The seat frame 1 generally has a right side and a left side of similar architectures; in Figure 1, only one side is shown, and therefore, on the side not shown, there are other connecting rods between the seat and the slide, equivalent to the rods 4a; 4b shown.
    More specifically, in the example illustrated, a front connecting rod 4a connects the front part 3a of the base 3 (pivoting assembly with axis referenced 31) to a front part la of the frame 1 of the seat (pivoting mounting d 'axis referenced il), and a rear connecting rod 4b, connects the rear part 3p of the base 3 (pivoting assembly with axis referenced 32) to the rear part lp of the frame 1 (pivoting assembly with axis referenced 12) . In the example illustrated, the pivoting assemblies of the first and second connecting rods 4a; 4b are all of axes parallel to the transverse axis Y, which is perpendicular to the longitudinal axis X and perpendicular to the vertical axis Z.
    The connecting rods 4a, 4b can be moved independently by respective control means or can be controlled simultaneously by synchronized control means or through a mechanical connection which can connect them.
    When the front link 4a is pivoted counterclockwise by the raising mechanism 4, then the front part connected to the seat lifts upwards; while conversely, when the front link 4a is pivoted clockwise, then the front part of the seat lowers towards the floor. Similarly, when the rear link 4b is pivoted counterclockwise, then the rear part of the seat lifts upwards; while, when the rear connecting rod 4b is pivoted clockwise, the rear part of the seat lowers towards the floor.
    When ordering the connecting rod system (4a, 4b), the seat moves substantially parallel to the floor, which is called the “raising” movement as illustrated in the figures la (raised position) and lb (lower position). Between the low and raised positions, the links 4a, 4b have undergone a pivoting in the trigonometric direction of approximately 30 degrees, which defines the stroke of the connecting rods between the low position and the raised position.
    The front connecting rod 4a (respectively the rear connecting rod 4b) is for example connected integrally to a transverse bar extending along the transverse axis Y and connecting the connecting rod shown to an equivalent connecting rod disposed on the other side of the seat structure (not shown).
    As illustrated in FIGS. 2a and 2b, the front link 4a is for example integrally connected to a control flange 43 which is presented as a metal plate extending along a plane X, Z (detail in FIG. 2b). This control plate 43 is connected directly to the transverse bar and / or to the connecting rod 4a and comprises on an end sector of substantially circular shape a toothed zone 44 intended to cooperate with a drive device, for example motorized 46, which comprises an output pinion 45 coming into direct engagement with the above-mentioned toothed sector 44.
    Preferably, such a drive device is arranged only on one side of the frame 1 of the seat cushion; the other side may lack it. The output pinion is arranged to rotate about an axis A substantially parallel to the transverse axis Y.
    A protective casing 47 can be provided to partially or almost completely cover the pinion 45 with the exception of the engagement zone in the toothed sector.
    If adapted, a second drive device, similar to the first, can be provided to similarly drive the rear link 4b.
    Furthermore, the base 3 is slidably mounted relative to the vehicle floor by means of longitudinal rails 2 comprising a fixed profile 21 fixed to the vehicle floor and a movable profile 22 secured to the raised base 3 and sliding in the longitudinal direction X on the fixed profile 21.
    The fixed 21 and movable 22 profiles are for example metallic. The fixed 21 and movable 22 profiles are for example fitted into one another by defining a hollow interior space. The movable profile 22 is here for example a male profile and the fixed profile 21 a female profile.
    As shown in FIG. 3a and by way of example, the mobile profile 22 can have a substantially U-shaped section. The mobile profile 22 can have a horizontal upper core 220 and fixed to the seat base. The movable profile may further comprise two lateral wings 221 which each extend substantially vertically downwards from the seat. The fixed profile 21 can also have a U-shaped section, with a horizontal lower core 210 fixed to the vehicle floor and extending parallel to the soul of the movable profile, and two lateral wings 211 which each extend substantially vertically towards the high from the lower soul. At least one of the side wings 211 of the fixed section extends into a re-entering trough having a substantially vertical falling end wall 213, a horizontal wing 212 connecting the side wing and the falling side wall.
    The front link 4a comprises a link body 40 with a substantially elongated shape. The connecting rod body is substantially symmetrical about an axis perpendicular to the direction connecting the two ends of the connecting rod. The connecting rod 4a is notably slightly curved in the plane in which it carries out its travel to pass from the low position to the raised position. As illustrated in FIGS. 4a and b, the front connecting rod 4a according to the invention has a protrusion 5 extending from the lower end of the connecting rod body 40. As a variant, the rear connecting rod 4b can also have a protrusion 5 ′ with by example the same properties as those which will be described below. This protuberance 5 is for example formed by a continuity of material from the lower end 42 of the body of the front link 4a. The front link 4a is for example obtained by shaping a metallic structural part.
    The protuberance 5 extends opposite the longitudinal slide 2. More particularly, the protuberance 5 has a shape complementary to the shape of the slide 2 locally.
    The protrusion 5 is formed on the outer side of the connecting rod, that is to say that which is opposite to the side of the connecting rod intended to be located between the two lateral slides of the seat. The protrusion 5 is also formed on the side near the center of the vehicle or on the outside side of the vehicle, that is to say opposite to the side near the center of the vehicle.
    The protuberance 5 will advantageously bear on the fixed profile of the slide in each of the embodiments.
    In a first embodiment, the protrusion 5 has three portions extending substantially concentrically with respect to the axis 31. A first portion 5a extends from the lower end 42 of the connecting rod body 40, along of only part of the lower end 42. A second portion 5b of the same extension or less extended along the lower end 42 that the first portion 5a extends from the first portion. A third portion 5c of the same extension or less extended than the second portion 5b extends from the second portion 5b. In the plane Y, Z, as illustrated in FIG. 3a, the assembly of the three portions 5a, 5b, 5c therefore forms two consecutive elbows, which has a shape complementary to the shape of the longitudinal slide locally in section in the plane transverse to X.
    In particular, the protrusion 5 comprises a first portion substantially parallel to the horizontal upper core of the movable profile 22, a second portion substantially parallel to said lateral wing of the movable profile 22, and a third portion substantially parallel to the horizontal wing of the fixed profile 21. The protuberance 5 therefore has a shape substantially complementary to the shape of ίο the slide 2 locally, allowing a flat support of the different portions of the protrusion 5 against the slide 2 in the event of contacting of the connecting rod 4a with the slide 2 in the X, Z plane and in the X, Y plane.
    In the plane X, Z, the end of the protrusion 5 also has a general shape adapted to allow a flat support of the end of the protrusion 5 against the slide 2 in the event of non-usual stress (in the case of crash) according to Z, whatever the position of the connecting rod in its stroke. The end of the protrusion also has a shape adapted to allow a clearance to be maintained between the end of the protrusion of the connecting rod 4a and the slide 2, whatever the position of the connecting rod in its course.
    The end of the protrusion has in particular a shape of an arc of a circle around the axis 31, which allows the end of the protrusion to be parallel to the slide regardless of the position of the connecting rod in its stroke, and to maintain a substantially constant clearance between the connecting rod 4a and the slide 2 over the entire stroke of the connecting rod 4a.
    In a second embodiment illustrated in FIG. 3b, the protrusion 5 extends substantially parallel and near the horizontal flange 212 of the fixed section
    21. The protuberance 5 has a shape substantially complementary to the shape of the slide 2 locally, allowing a flat support of the protrusion 5 against the slide 2 in the event of the rod 4a coming into contact with the slide 2 in the plane X, Y.
    In a third embodiment illustrated in FIG. 3c, the protrusion 5 is formed by a single portion which is both substantially parallel and close to the lateral wing (221 and substantially parallel and close to the horizontal wing.
    In this embodiment, the protuberance 5 will be thick, that is to say that the protuberance will have a substantially rectangular section in the cutting plane (Y, Z) of which two adjacent sides extend one parallel to the horizontal wing 212 and the other parallel to the lateral wing 221. The protuberance 5 therefore has a shape substantially complementary to the shape of the slide 2 locally, allowing a flat support of the protrusion 5 against the slide 2 when the connecting rod 4a comes into contact with the slide 2 in the plane X, Z and in the plane X, Y.
    The protuberance 5 extends along only part of the lower end 42 of the body 40 of the front link 4a.
    In particular, in the first embodiment, the extent of the protrusion 5 decreases continuously from the first section 5a to the second section 5b, then from the second section 5b to the third section 5c.
    In particular, the third portion 5c has an extension along the lower end 42 of the body 40 of the front link 4a strictly less than that of the second portion 5b or of the first portion 5a, the decrease forming a "step" between both portions. The extension of the third portion 5c along the lower end 42 of the body 40 of the front link 4a corresponds to an angular portion around the axis 31 between 60 ° and 120 °.
    In the first “normal” operating state of the raising mechanism, a clearance is maintained between the longitudinal slide 2 and the projection 5, and this throughout the stroke of the connecting rod 4a relative to the slide 2.
    In the event of a frontal impact, in the second state, the connecting rod 4a tends to deform. The protuberance 5 is pressed against the slide 2 which limits the possible movements of the connecting rod 4a around X and along Z.
    In the first embodiment, the first section 5a comes into plan contact with the upper core 220, or the second section 5b comes into plan contact with the lateral wing 221 of the movable profile 22, or the third section 5c comes into plan contact with the horizontal wing 212 of the fixed profile 21.
    Thus, the contact between the first section 5a and the upper core 220 limits the vertical collapse of the seat, that is to say of the frame on the base. The contact between the third section 5c and the horizontal wing 212 has the same effect. The contact between the second section 5b and the lateral wing 221 of the movable profile 22 makes it possible to absorb part of the torsional torque around the axis X generated by a frontal impact, thus limiting the lateral dumping of the seat.
    权利要求:
    Claims (14)
    [1" id="c-fr-0001]
    1. Height-adjustable seat for a motor vehicle comprising:
    - a seat frame (1),
    - a longitudinal slide (2),
    - a raising mechanism (4) adapted to move the seat frame (1) relative to the longitudinal slide (2) between a low position and a raised position, said raising mechanism (4) comprising on each side of the seats at least one front connecting rod (4a), said front connecting rod (4a) having a connecting rod body (40) with an upper end (41) connected one end comprises between the raised part,
    The projection on the armature (1) and lower (42) connected to the base (3), characterized in that:
    at least one front link (4a) also a projection (5) extending from the lower end (42), the projection (5) extending opposite the longitudinal slide (2), said front link (4a ) being adapted to deform in the event of an impact between a first state in which a clearance separates the longitudinal slide (2) and the projection (5) regardless of the position of the seat frame in the low position and the position and a second state in which (5) is in contact at least locally with the longitudinal slide (2).
    [2" id="c-fr-0002]
    2. Seat for a motor vehicle according to claim 1 wherein the shape of the protrusion (5) is adapted to allow a planar support of the protrusion (5) on the longitudinal slide (2) during contact in the second state.
    [3" id="c-fr-0003]
    3. Seat for a motor vehicle according to any one of claims 1 to 2 wherein the projection (5) extends continuously from the body (40) of the front link (4a) without discontinuity of material.
    [4" id="c-fr-0004]
    4. Seat for a motor vehicle according to any one of claims 1 to 3 wherein the protuberance (5) has a shape complementary to the shape of the slide (2) locally.
    [5" id="c-fr-0005]
    5. Seat for a motor vehicle according to any one of claims 1 to 4 wherein the longitudinal slide (2) comprises a movable profile (22) and a fixed profile (21), the projection (5) comprising a facing part of the fixed profile (21).
    [6" id="c-fr-0006]
    6. Seat for a motor vehicle according to claim 5, in which:
    the movable profile (22) comprises a horizontal upper (220) and at least one lateral wing (221) which extends substantially vertically downwards from the horizontal upper core (220),
    the fixed section (21) comprises at least one horizontal wing (212) which is extended by a falling end wall (213), said falling end wall (213) being opposite a side wing (211) of the movable section,
    - The projection (5) extends substantially parallel and close to the horizontal wing (212) of the fixed section (21).
    [7" id="c-fr-0007]
    7. Seat for a motor vehicle according to any one of claims 1 to 4 wherein the protrusion (5) comprises a first part opposite the movable profile (22) and a second part opposite the fixed profile (21) .
    [8" id="c-fr-0008]
    8. Seat for a motor vehicle according to claim 7, in which:
    the movable profile (22) comprises a horizontal upper core (220) and at least one lateral wing (221) which extends substantially vertically downward from the horizontal upper core (220),
    the fixed section (21) comprises at least one horizontal wing (212) which is extended by a falling end wall (213), said falling end wall (213) being opposite a side wing (211) of the movable section,
    - the protuberance (5) comprises a first portion (5a) substantially parallel and close to the horizontal upper core (220) of the movable profile (22), a second portion (5b) substantially parallel and close to said wing side (221) of the movable profile (22), and a third portion (5c) substantially parallel and close to the horizontal wing (212) of the fixed profile (21).
    [9" id="c-fr-0009]
    9. Seat for a motor vehicle according to claim 8 comprising a base (3) surmounting the longitudinal slide, the base (3) being connected to the front connecting rod (4a) by an axis (31), the third portion (5c) having an extension along the lower end (42) of the body (40) of the front link (4a) less than the first portion (5a) and the second portion (5b), the extension of the third portion (5c ) along the lower end (42) of the body (40) of the front link (4a) corresponding to an angular portion around the axis (31) between 60 ° and 120 °.
    [10" id="c-fr-0010]
    10.Seat for a motor vehicle according to one guelcongue of claims 9 to 10 in leguel the end of the third portion (5c) has the shape of an arc of a circle.
    [11" id="c-fr-0011]
    11.Seat for a motor vehicle according to one of the claims 1 to 4 in leguel the longitudinal slide (2) comprises a movable profile (22) and a fixed profile (21):
    the movable profile (22) comprising a horizontal upper core (220) and at least one lateral wing (221) which extends substantially vertically downwards from the horizontal upper core (220),
    the fixed section (21) comprising at least one horizontal wing (212) which is extended by a falling end wall (213), said falling end wall (213) being opposite a side wing (211) of the movable section,
    - The protuberance (5) being formed by a single portion both substantially parallel and close to the lateral wing (221) and substantially parallel and close to the horizontal wing (212).
    [12" id="c-fr-0012]
    12.Seat for a motor vehicle according to one of the guelcongue of claims 1 to 11 in leguel the projection (5) extends along only part of the lower end of the body (40) of the front connecting rod (4a ).
    [13" id="c-fr-0013]
    13.Seat for a motor vehicle according to one of claims 1 to 12 in leguel a free end of the projection (5) has a shape adapted to maintain a substantially constant clearance between said free end and the longitudinal slide (2), when a stroke of the front link (4a) to move the seat between the low position and the raised position, in the first state.
    [14" id="c-fr-0014]
    14.A seat for a motor vehicle according to one of claims 1 to 13 in which the rear connecting rod (4b) also comprises a projection (5 ′) extending from the lower end (42) of the rear connecting rod (4b), the projection (5 ') extending opposite the longitudinal slide (2).
    1/6
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    同族专利:
    公开号 | 公开日
    US10493876B2|2019-12-03|
    CN107878265A|2018-04-06|
    FR3056477B1|2018-10-12|
    US20180086237A1|2018-03-29|
    CN107878265B|2021-03-19|
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    WO2013021912A1|2011-08-10|2013-02-14|テイ・エス テック株式会社|Vehicle seat|
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    JP6166643B2|2013-01-23|2017-07-19|株式会社デルタツーリング|Vehicle seat|
    DE102013103694B4|2013-04-12|2016-10-06|Faurecia Autositze Gmbh|Adjustment drive of a motor vehicle seat|
    DE102013106250A1|2013-06-14|2014-12-18|Johnson Controls Gmbh|Vehicle seat substructure with an accident-induced adjustment|
    DE102015201649B4|2014-11-13|2017-07-27|Adient Luxembourg Holding S.à.r.l.|Connecting element for height adjustment of a vehicle seat and vehicle seat|CN104709128B|2015-01-22|2017-03-15|上海延锋江森座椅有限公司|A kind of seat with endergonic structure|
    JP6838492B2|2017-05-18|2021-03-03|トヨタ紡織株式会社|Vehicle seat|
    JP2019069704A|2017-10-10|2019-05-09|トヨタ自動車株式会社|Vehicle seat|
    FR3106539A1|2020-01-29|2021-07-30|Renault S.A.S|Motor vehicle seat cushion frame|
    法律状态:
    2017-08-21| PLFP| Fee payment|Year of fee payment: 2 |
    2018-03-30| PLSC| Search report ready|Effective date: 20180330 |
    2018-08-22| PLFP| Fee payment|Year of fee payment: 3 |
    2019-08-20| PLFP| Fee payment|Year of fee payment: 4 |
    2020-08-19| PLFP| Fee payment|Year of fee payment: 5 |
    2021-08-19| PLFP| Fee payment|Year of fee payment: 6 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1659386A|FR3056477B1|2016-09-29|2016-09-29|ENHANCE SYSTEM FOR VEHICLE SEAT|
    FR1659386|2016-09-29|FR1659386A| FR3056477B1|2016-09-29|2016-09-29|ENHANCE SYSTEM FOR VEHICLE SEAT|
    US15/721,016| US10493876B2|2016-09-29|2017-09-29|Raising system for vehicle seat|
    CN201710906743.9A| CN107878265B|2016-09-29|2017-09-29|Lifting system for vehicle seat|
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