• 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:
    Seat locking system (10) for selectively locking a vehicle seat (12) which can pivot in a retracted position and in an extended position. The seat latch system (10) has a latch (110) and a pivoting latch pawl (140) provided to selectively engage the latch (110). Figure of the abstract: Figure 1
    公开号:FR3086221A1
    申请号:FR1910213
    申请日:2019-09-16
    公开日:2020-03-27
    发明作者:James S. Smith
    申请人:Faurecia Automotive Seating LLC；
    IPC主号:
    专利说明:

    Title of the invention: SEAT LOCKING SYSTEM
    BACKGROUND The present disclosure relates to a seat locking system for a vehicle seat. In particular, the present disclosure relates to a seat locking system for locking the vehicle seat releasably in a retracted position and for locking the vehicle seat releasably in an extended position.
    SUMMARY According to the present disclosure, a seat locking system includes a latch and a locking pawl provided for releasably engaging with the latch. The seat locking system is provided to allow a seat to be selectively pivoted between a retracted position and an extended position and to releasably lock the seat in the retracted position and to releasably lock the seat in the exit position.
    According to illustrative embodiments, the lock may include a stop member intended to be engaged by an abutment member of the locking pawl to lock the seat releasably in the retracted position. The latch may also include a retaining member adapted to be engaged by a latching latch engaging member to releasably lock the seat in the extended position. The locking pawl can pivot selectively between a locked position and an unlocked position, the seat being able to pivot selectively between the retracted position and the extended position of the seat.
    Additional features of the present disclosure will appear to those skilled in the art on examining illustrative embodiments implementing the best mode of implementation of the disclosure as it is now envisaged. Brief description of the drawings The detailed description relates in particular to the accompanying figures in which:
    Fig.l [0006] [fig.l] is a side elevational view of the seat locking system according to the present disclosure, illustrated in connection with a vehicle seat having a seat pivotally coupled to a seat base, the seat being illustrated in a retracted position in solid lines and the seat being illustrated pivoted in an extended position in dotted lines.
    Fig. 2, Fig. 3, Fig. 4, Fig. 5 [0007] [fig-2], [Fig. 3], [Fig. 4], [Fig. 5] constitute a series of views illustrating the process of moving the seat by pivoting from the retracted position as illustrated in FIG. 2 to the extended position as illustrated in FIG. 5.
    Fig. 6 [0008] [fig.6] is a perspective view of the seat locking system and of a connection system thereof for coupling the vehicle seat pivotally to the seat base,
    Fig. 7 [0009] [fig.7] is an exploded view of the seat locking system and of the connection assembly as illustrated in FIG. 6,
    Fig. 8 [fig.8] is an exploded view of part of the seat locking system as illustrated in Figure 7.
    Detailed Description According to the present disclosure, a seat locking system 10 is provided to selectively lock a pivoting vehicle seat 12 so as to prevent the pivoting movement of the vehicle seat 12 and to selectively unlock the vehicle seat 12 to allow the pivoting movement of the vehicle seat 12. The vehicle seat 12 includes a seat base 14 intended to be fixed to the floor of a vehicle. The vehicle seat 12 comprises a seat 16 having a seat base 18 and a seat back 20 which generally extends upwards from the rear end of the seat base 18. The seat 16 is pivotally coupled to the seat base 14 and can pivot selectively relative to the seat base 14 between a retracted position as illustrated generally in solid lines in Figure 1 and an extended position as illustrated generally in dotted lines in the figure 1. The seat 16 is designed to receive and support an occupant when the seat 16 is in the retracted position. The seat 16 can be selectively pivoted to the extended position to provide additional user or occupant access to the area behind the seat 16. The seat locking system 10 releasably locks the seat 16 into the retracted position relative to the seat base 14 and releasably locks the seat 16 in the extended position relative to the seat base 14, while allowing the seat 16 to be selectively moved between the retracted position and the exit position. The seat base 14 has spaced openings 22A-D which generally extend transversely as far as the seat base 14.
    The seat locking system 10 comprises a connection system 28 for pivotally coupling the seat 16 to the seat base 14. The connection system comprises a pivot console 30 rigidly coupled to the seat 16. The console pivot 30 comprises an upper branch 32 having an upper end, a front branch 34 extending forward having an outer end including an opening 36, and a rear branch 38 extending downward having a tip 40. The console pivoting 30 also includes an opening 42. The tip 40 of the pivoting console 30 is designed to come into engagement with the seat base 14 when the seat 16 is in the retracted position. The connection system 28 comprises a pivoting connection front 48 having a first end 50 and a second end 52 spaced apart. The first end 50 of the front swivel link 48 is pivotally coupled to the seat base 14 by a clip 54 which extends through an opening in the first end 50 of the front swivel link 48 into the opening 22C of the seat base 14. The front swivel link 48 is provided to pivot relative to the seat base 14 about a generally linear axis 56 which is generally concentric with the fastener 54. The term fastener, as used here can include a pin, shank, bolt, rivet, bar, pin, or the like. The second end 52 of the front pivot link 48 is pivotally coupled to the front leg 34 of the pivot console 30 by a clip 60 which extends through an opening in the second end 52 of the front pivot link 48 to in the opening 36 of the pivot console 30. The front pivot link 48 is provided to pivot relative to the pivot console 30 about a generally linear axis 62 which generally extends concentrically through the fastener 60 and which is generally parallel to the axis 56 and generally transverse to the seat base 14.
    The connection system 28 includes rear pivoting connections 66A and 66B which are generally parallel to each other. The rear pivoting link 66A is generally curved and extends between a first end 68 and a second end 70. The first end 68 of the rear pivoting link 66A has an opening 72A and a second end 70 of the rear pivoting link 66B has a opening 72B. The rear pivoting link 66B extends between a first end 74 and a second end 76 in the same generally curved manner as the rear pivoting link 66A. The first end 74 of the rear pivoting link 66B has an opening 78A and a second end 76 of the rear pivoting link 66B has an opening 78B. Openings 72A and 78A are aligned coaxially with each other and openings 72B and 78B are aligned coaxially with each other. The rear pivoting link 66B has a tongue 80 which extends transversely and outwards from a front edge of the rear pivoting link 66B towards the rear pivoting link 66A. The tongue 80 is generally located halfway between the first end 74 and the second end 76 of the rear pivoting link 66B. The rear pivoting link 66B also includes a tongue 82 at the first end 74, which extends transversely and outwards away from the rear pivoting link 66A. The tongue 82 is located on the front edge of the rear pivoting link 66B.
    The first end 68 of the rear pivoting link 66A and the first end 74 of the rear pivoting link 66B are pivotally attached to the seat base 14 by a clip 84. The clip 84 extends through the opening 72A in the first end 68 of the rear pivoting link 66A, through the opening 78A in the first end 74 of the rear pivoting link 66B, and into the opening 22B of the seat base 14. The pivoting links rear 66A and 66B can pivot together relative to the seat base 14 about a generally linear axis 86 which generally extends concentrically through the fastener 84 and the openings 72A, 78A and 22B. The second end 70 of the rear pivot connection 66A and the second end 76 of the rear pivot connection 66B are pivotally coupled to the pivot console 30 by a clip 88 which extends through the opening 72B in the second end 70 of the rear pivoting link 66A, through the opening 78B in the second end 76 of the rear pivoting link 66B, and as far as in the opening 42 in the pivot console 30. The rear pivoting links 66A and 66B can pivot by relative to the pivot console 30 about a generally linear axis 90 which generally extends concentrically through the fastener 88, and the openings 72B, 78B and 42. The axis 90 is spaced from the axis 86 and is generally parallel to it. The axes 86 and 90 are generally parallel to the axes 56 and 62.
    The connecting system 28 comprises a spacer 96 as illustrated in Figure 1, which generally extends linearly between a first end 98 and a second end 100. The first end 98 of the spacer 96 is pivotally coupled to the seat base 14 by a fastener which extends into the opening 22D of the seat base 14 so that the spacer 96 can pivot relative to the seat base 14 about a generally linear axis 102 which extends through the first end of the spacer 96 and the opening 22D of the seat base 14. The second end 100 of the spacer 96 is pivotally coupled to a front end of the seat seat 18 of seat 16 so as to be able to pivot relative to the seat cushion 18 about a generally linear axis 104. The axes 102 and 104 are spaced apart and are generally parallel to each other and are generally parallel to axes 56, 62, 86 and 90.
    The seat locking system 10 includes a latch 110 rigidly coupled to the seat base 14. The latch 110 has a base 112 having spaced openings 114A and 114 B and an opening 116. The latch 110 may include a plate generally flat. The lock 110 comprises a locking member 118 coupled to an upper end of the base 112. The locking member 118 of the lock 110 comprises a stop element 120 located on a rear end of the locking member 118. The stop member 120 may include a generally concave curvature blocking surface. The locking member 118 of the lock 110 also includes a retaining member 122. The retaining member 122 may include a finger extending outward from the front end of the locking member 118 to a tip 124. The locking member 118 has a generally convex curvature guide surface 126 which extends along an upper end of the locking member 118 between the upper end of the stop member 120 and the tip 124 of the retaining member 122. The latch 110 has a flange 127 which extends rearwards from a lower end of the stop element 120.
    A fastener 128 extends through the opening 114A in the latch 110 and into the opening 22A in the seat base 14 so as to rigidly couple the latch 110 to the seat base 14. The fastener 84 extends through the opening 78A in the rear pivoting link 66B, the opening 114B in the latch 110, the opening 72A in the rear pivoting link 66A, and into the opening 22B in the seat base 14 The fastener 84 rigidly couples the latch 110 to the seat base 14, while allowing the rear pivoting links 66A and 66B to pivot around the pivot axis 86 relative to the seat base 14. A fastener 130 s extends through the opening 116 in the latch 110 and into the opening in the seat base 14 so as to rigidly couple the latch 110 to the seat base 14. The latch 110 is rigidly connected and is fixed to the seat base 14 by fasteners 84, 128 and 130.
    The seat locking system 10 comprises a locking pawl 140 pivotally coupled to the second end 70 of the rear pivoting link 66A, to the second end 76 of the rear pivoting link 66B, and to the pivoting console 30. The locking pawl 140 has a base 142 having an opening 144. The locking pawl 140 has a front end having a stop member 146. The stop member 146 may include a generally convex curvature stop surface. The stop member 146 of the latch pawl 140 and the stop member 120 of the latch 110 are configured to engage so as to generally couple with each other. The locking pawl 140 has a latching member 148 which extends outward from a lower end of the latching pawl 140. The latching member 148 may generally include a hook which forms a recess 150 adapted to receive releasably the tip 124 of the retaining member 122 of the latch 110. The locking pawl 140 has an opening 152 generally located between the opening 144 and the stop member 146. A tongue 154 generally extends transversely and outward from the front end of the latch pawl 140 next to an upper end of the stop member 146 toward the latch 110. An arm 156 having an opening extends upward and inward. outside from the base 142 of the locking pawl 140.
    The fastener 88 extends through the opening 78B in the second end 76 of the rear pivoting link 66B, the opening 144 in the locking pawl 140, the opening 72B in the second end 70 of the rear pivoting link 66A, and as far as in the opening 42 in the pivoting console 30. The rear pivoting links 66A and 66B are pivotally coupled to the pivoting console 30 by the clip 88 so as to be able to carry out a movement of pivoting about the pivot axis 90. The locking pawl 140 is pivotally coupled to the rear pivoting links 66A and 66B and to the pivot console 30 by the clip 88 so as to allow a pivoting movement around the pivot axis 90 with respect to the rear pivot connections 66A and 66B and to the pivot console 30 between an unlocked retracted position and a locked extended position.
    The seat locking system 10 includes a cam 160 pivotally coupled to the locking pawl 140. The cam 160 has a base 162 having an opening 164. The cam 160 has an engagement member 166 at a front end, which is provided for releasably engaging with the stop element 120 of the latch 110. The cam 160 has a tongue 168 which extends outwards from the upper end of the cam 160 towards the locking pawl 140. The cam 160 is pivotally coupled to the locking pawl 140 by a fastener 170 which extends through the opening 164 in the cam 160 and the opening 152 in the locking pawl 140 of such that the cam 160 can pivot relative to the locking pawl 140 about a pivot axis 172. The pivot axis 172 is spaced from the axis 90 and is generally parallel thereto.
    An elastic biasing member 180, such as for example a coiled spring, has opposite ends coupled respectively to the tongue 154 of the locking pawl 140 and to the tongue 80 of the rear pivoting connection 66B. An elastic biasing member 182, such as for example a coiled spring, has opposite ends coupled to the tongue 154 of the locking pawl 140 and to the tongue 168 of the cam 160. An actuator member 184, such as a cord or an elongated cable, is coupled to the arm 156 of the locking pawl 140. Although only one seat locking system 10 is described herein, one or more seat locking systems can be used together in conjunction with a vehicle seat.
    When the seat 16 of the vehicle seat 12 is in the retracted position as illustrated in solid lines in Figure 1, the biasing member 180 resiliently biases the locking pawl 140 so that it pivots around the pivot axis 90 generally in the clockwise direction, as illustrated in FIG. 1 with respect to the rear pivoting links 66A-B until the stop member 146 of the locking pawl 140 is situated inside and next to the stop element 120 of the latch 110, and that the latching member 148 of the latch pawl 140 comes into engagement with the flange 127 of the latch 110, the locking pawl 140 being in the locked out position. The stop member 146 of the locking pawl 140 is designed to come into engagement with the blocking surface of the stop element 120 of the latch 110 to prevent the pivoting movement of the seat 16 from the retracted position to the extended position , and thus lock the seat 16 in the retracted position.
    A small space may exist between the stop member 146 of the locking pawl
    140 and the locking surface of the stop element 120 of the lock 110 when the seat 16 is in the retracted position and the locking pawl 140 is in the locked position, to allow a relatively effortless pivoting movement of the pawl locking device 140 around the pivot axis 90 between the locked position exiting the locking pawl 140 and the unlocked retracted position of the locking pawl 140, without interference from the pivoting movement caused by the engagement of the locking pawl 140 with the 'stop element 120 of the lock 110. When the seat 16 is in the retracted position and the locking pawl 140 is in the locked out position, with the stop member 146 received in the element stop 120 of the lock 110, the biasing member 182 resiliently biases the cam 160 so that it generally rotates clockwise, as illustrated in Figure 1, about the pivot axis 172, from an unlocked position to a retracted locked extended position. When the cam 160 is in the locked out position and the locking pawl 140 is in the locked out position, with the stop member 146 received in the stop element 120 of the lock 110, the biasing member 182 biases the engagement member 166 of the cam 160 in engagement with the stop element 120 of the latch 110. The cam 160 prevents the pivoting movement of the seat 16 from the retracted position to the extended position due to the engagement of the engagement member 166 of the cam 160 with the stop element 120 of the latch 110. Insofar as there may be room for a certain play or a small movement of the seat 16 from the retracted position towards the extended position due to a space between the stop member 146 of the locking pawl 140 and the stop element 120 of the lock 110, the direct engagement of the engagement member 166 of the cam 160 with the stop element 120 of the lock 110 prevents movement of pi vote o u the vibration of the seat 16 which could otherwise be possible due to a space between the stop member 146 of the locking pawl 140 and the stop element 120 of the lock 110.
    In the event that the vehicle collides, significant impact forces can be exerted on the seat 16. These high impact forces can possibly move the cam 160 out of its engagement with the element of stop 120 of the lock 110. However, the stop member 146 of the lock pawl 140 will come into engagement with the stop element 120 of the lock 110 to lock the seat 16 in the retracted position and prevent a pivoting movement of the seat. 16 from the retracted position to the extended position of the seat 16.
    If you want to rotate the seat 16 from the retracted position as illustrated in Figure 2 to the extended position as illustrated in Figure 5, an upward retraction force is applied to the arm 156 of the locking pawl 140 by the actuator member 184. The actuator member 184 pivots the locking pawl 140 generally anti-clockwise about the pivot axis 90 as illustrated in FIG. 1, until in an unlocked retracted position in which the stop member 146 of the locking pawl 140 is withdrawn from the stop element 120 of the latch 110 as illustrated in FIG. 3. The cam 160 pivots jointly with the locking pawl 140 out of engagement with the stop member 120 of the lock 110 until in an unlocked retracted position as the locking pawl 140 is pivoted anti-clockwise around the axis d pivoting 90.
    The connecting system 28 thus ensures a pivoting movement of the seat 16 from the retracted position as illustrated in Figure 2 to the extended position as illustrated in Figure 5. As illustrated in Figure 3, when the seat 16 is initially pivoted out of the retracted position, the retraction force applied by the actuator member 184 to the locking pawl 140 can be released so that the biasing member 180 resiliently biases the latching member 148 of the pawl locking device 140 in engagement with the guide surface 126 of the latch 110. As the seat 16 continues to be pivoted from the retracted position to the extended position as illustrated in FIGS. 3 and 4, the engagement member 148 of the locking pawl 140 will slide along the guide surface 126 of the lock 110.
    When the seat 16 reaches the extended position as generally illustrated in FIG. 5, the biasing member 180 elastically pivots the locking pawl 140 generally in the clockwise direction around the pivot axis 90 to the locked out position in which the retaining member 122 of the latch 110 is received and located inside the recess 150 of the latching member 148 of the latch pawl 140. The latching member 148 of the locking pawl 140 is provided to engage the retaining member 122 of the lock 110 so as to lock the seat 16 in the extended position and to prevent the pivoting movement of the seat 16 from the extended position to the retracted position of the seat 16.
    The seat 16 can be pivoted selectively from the extended position as illustrated in FIG. 5 to the retracted position as illustrated in FIG. 2 by applying an upward retraction force to the arm 156 of the locking pawl 140 by the actuator member 184 so that the locking pawl 140 is pivoted anti-clockwise around the pivot axis 90 from the locked out position to the unlocked reentered position in which the latching member 148 of the locking pawl 140 is disengaged from the latch retaining member 122. The seat 16 can thus be pivoted from the extended position to the retracted position, the retraction force applied by the locking member actuator 184 which can be released so that the biasing member 180 resiliently biases the latching member 148 of the locking pawl 140 in sliding engagement with the on guide face 126 of the lock 110 until the seat 16 is moved to the retracted position.
    When the seat 16 is pivoted enough to reach the retracted position, the biasing member 180 elastically pivots the locking pawl 140 in the clockwise direction around the pivot axis 90 of the position unlocked returned to the locked out position, the stop member 146 of the locking pawl 140 being received inside the stop member 120 of the lock 110 and being located next to the latter, and the member bias 182 elastically pivoting the cam 160 clockwise around the pivot axis 172 so that the engagement member 166 of the cam 160 is engaged with the element stop 120 of the lock 110. The seat 16 is thus releasably locked to prevent any pivoting movement from the retracted position to the extended position of the seat 16.
    权利要求:
    Claims (1)
    [1" id="c-fr-0001]
    Seat locking system (10) for a seat (16) pivotally coupled to a seat base (14), the seat (16) being selectively pivotable relative to the seat base (14) between a position retracted and extended position, the seat locking system (10) comprising:
    a lock (110) adapted to be coupled to the seat base (14), the lock (110) comprising a stop element (120) and a retaining member (122), and a locking pawl (140) coupled pivotally to the seat (16), the locking pawl (140) comprising a stop member (146) and an engaging member (148), the locking pawl (140) being pivotable between a locked position and a position unlocked with respect to the seat, in which when the seat (16) is in the retracted position and the locking pawl (140) is in the locked position, the stop member (146) of the locking pawl (140) is adapted to engage the lock member (120) of the latch (140) such that the locking pawl (140) prevents the seat (16) from moving into the extended position, and when the seat ( 16) is in the extended position and the locking pawl (140) is in the locked position lée, the latching member (148) of the locking pawl (140) is designed to come into engagement with the retaining member (122) of the latch (110) so that the locking pawl (140) prevents the movement of the seat (16) from the extended position to the retracted position, the seat (16) being able to pivot selectively between the retracted position and the extended position when the locking pawl (140) is in the unlocked position.
    A seat locking system (10) according to claim 1, wherein the latch retaining member (122) includes an outwardly extending finger adapted to be engaged by the member engagement (148) of the locking pawl (140) when the seat (16) is in the extended position and the locking pawl (140) is in the locked position.
    A seat locking system (10) according to claim 1 or 2, wherein the stop member (146) of the locking pawl (140) includes a generally convex bending stop surface.
    [Claim 4] Seat locking system (10) according to any one of the preceding claims, in which the latching member (148) of the locking pawl (140) comprises a hook provided for receiving the retaining member (122) of the latch (110) when the seat (16) is in the extended position and the locking pawl (140) is in the locked position. [Claim 5] A seat locking system (10) according to any one of the preceding claims, wherein the latch (110) has a convex curvature guide surface (126) located between the stop member (120) and the member retainer (122), the latch pawl (140) being slidably engaged with the guide surface (126) when the latch pawl (140) is in the unlocked position. [Claim 6] A seat locking system (10) according to any one of the preceding claims, comprising a cam (160) pivotally coupled to the locking pawl (140), the cam (160) being selectively pivotable between a locked position and an unlocked position, the cam (160) being designed to engage the stop element (120) of the lock (110) when the seat (16) is in the retracted position and the locking pawl (140) is in the locked position. [Claim 7] A seat locking system (10) according to claim 6, comprising a biasing member (186) having a first end coupled to the locking pawl (140) and a second end coupled to the cam (160). [Claim 8] A seat locking system (10) according to any one of the preceding claims, comprising a connecting system (28) pivotally coupling the seat (16) to the seat base (14). [Claim 9] A seat locking system (10) according to claim 8, comprising a biasing member (180) having a first end (140) coupled to the locking pawl (140) and a second end coupled to the connecting system (28). [Claim 10] Seat locking system (10) according to claim 8 or 9, in which the connection system (28) comprises a pivot console (30) coupled to the seat (16), and a plurality of connections (48, 66A, 66B ) pivotally coupled to the pivot console (30) and pivotally coupled to the seat base.
    1/5
    类似技术:
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    同族专利:
    公开号 | 公开日
    CN110949197A|2020-04-03|
    US10549671B1|2020-02-04|
    DE102019125322A1|2020-03-26|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
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    US6910739B2|2003-08-27|2005-06-28|Bae Industries, Inc.|Seat recliner mechanism incorporating rotatable seatback slaved to a floor latch release|
    US7393056B2|2005-05-11|2008-07-01|Lear Corporation|Vehicle seat release assembly|
    JP5662171B2|2011-01-07|2015-01-28|テイ・エス テック株式会社|Retractable rear seat|
    DE102011012427B4|2011-02-22|2014-02-13|Progress-Werk Oberkirch Ag|Device for locking a vehicle seat|
    US9114732B2|2012-06-01|2015-08-25|Faurecia Automotive Seating, Llc|Easy-entry vehicle seat|
    US9283873B2|2012-12-17|2016-03-15|Ford Global Technologies, Llc|Flex and fold vehicle seating assembly|
    CN204978301U|2015-07-20|2016-01-20|浙江华远汽车零部件有限公司|Two locks on vehicle|WO2018046433A1|2016-09-08|2018-03-15|Adient Luxembourg Holding S.à.r.l.|Vehicle seat|
    CN111746360A|2020-07-02|2020-10-09|上海延锋座椅有限公司|Fixed point return mechanism integrating retaining function and automobile seat thereof|
    法律状态:
    2020-08-19| PLFP| Fee payment|Year of fee payment: 2 |
    2021-08-19| PLFP| Fee payment|Year of fee payment: 3 |
    优先权:
    申请号 | 申请日 | 专利标题
    US16/142,381|US10549671B1|2018-09-26|2018-09-26|Seat locking system|
    US16/142,381|2018-09-26|
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