FR2893559A1 - Vehicle e.g. minivan, has carrier structure pivoting around rotation axis between utilization position in which seat is placed above structure and storage position in which seat is placed below structure in housing of floor pan - Google Patents

Abstract

The vehicle has a floor pan (6) on which a carrier structure (2) pivots around a rotation axis (10) between a utilization position in which a seat is placed above the structure and a storage position in which the seat is placed below the structure in a housing of the floor pan. A rotation blocking device has an active state preventing pivoting of the structure with respect to the floor pan, and an inactive state allowing pivoting of the structure. The device has locking fingers (50) cooperating with and extending from complimentary openings (52) in the active and inactive states, respectively.

Description

Vehicle comprising a lockable retractable seat

  The invention relates to a vehicle comprising a seat retractable by rotation. It is more particularly to store an individual seat in a vehicle floor, including minivan, in a housing provided for this purpose. The invention aims in particular to provide simple, robust and inexpensive means providing easy handling of the seat. To this end, according to the invention, the vehicle comprises: a supporting structure, a seat held on the supporting structure, a floor on which the supporting structure is pivotally mounted around an axis of rotation between a position of use in which the seat is above the support structure and a storage position in which the seat is disposed under the supporting structure, in a housing formed in the floor, - a locking device in rotation comprising an active state in which it prohibits the pivoting of the supporting structure with respect to the floor about the axis of rotation and an inactive state in which it authorizes the pivoting of the supporting structure with respect to the floor about the axis of rotation, said device rotation lock comprising a pin and a complementary opening, the pin and the opening being bonded for one to the supporting structure and for the other 30 to floor, the nipple being inserted into the opening with which it cooperates in the active state and extending away from the opening in the inactive state.

  According to another characteristic according to the invention, the vehicle further comprises: a slideway extending in a sliding direction and comprising a fixed section and a movable section adapted to slide relative to one another in a sliding direction, said seat being connected to the movable section, the slide being substantially horizontal with the seat disposed substantially above in the position of use, the slide being substantially horizontal with the seat disposed substantially below in the storage position, - a device translation locking comprising an active state in which it prohibits the sliding of the movable section relative to the fixed profile in the sliding direction and an inactive state in which it allows sliding of the movable section relative to the fixed profile in the sliding direction , and - a control system to automatically place the device translational lock in its inactive state during at least part of the pivoting of the carrier structure between the use position and the storage position. Thus, without requiring complex manipulation to the user, in particular to place the seat in a determined position in the longitudinal direction, it is ensured that the seat always occupies the same place when in the storage position. The seat can in particular reach the determined position by sliding in the longitudinal direction under the action of gravity. According to another characteristic according to the invention, the rotational locking device comprises a plurality of pins sliding simultaneously between an output position in which they are intended to fit each into an opening and a retracted position in which they are at the same time. gap of openings. Thus, there is obtained a lock having a satisfactory robustness and easily controllable. According to a complementary feature according to the invention, the openings are formed in the floor, the pins slide in the carrier structure and each have a slide pin in a guide groove formed in a control plate pivotally mounted on the carrier structure, so that the rotation of the control plate causes the simultaneous movement of the pins to the extended position or to the retracted position.

  This solution is simple, robust and relatively easily concealable in the supporting structure. According to a complementary characteristic, the rotation of the control plate causes the deactivation of the locking device in translation via the control system. Thus, it is easy to simultaneously obtain the deactivation of the rotational locking device and the unlocking device in translation. Advantageously, the control system comprises a cable sliding in a sheath. According to a complementary characteristic according to the invention, the vehicle further comprises: a return spring tending to pivot the control plate to bring the pin into the extended position, and a holding tab opposing the action of the return spring to immobilize the control plate in rotation and maintain the nipple in the retracted position and the translation locking device in its inactive state. Thus, it is easy to memorize the inactivation control of the rotational locking device and the translation locking device. According to a variant, according to the invention, the stud is carried by the supporting structure and the locking device in rotation further comprises a bar having said opening, said bar sliding relative to the floor in a longitudinal direction perpendicular to the axis rotation between an advanced position in which the opening is intended to receive the pin and a retracted position in which the opening is intended to release the pin.

  According to another characteristic according to the invention, the rotational locking device is automatically placed in the active position, when the seat is in the use position and in the storage position. Thus, it avoids any unintentional rotation of the seat. According to another characteristic according to the invention, the carrying structure comprises a plate having a length along a direction of sliding perpendicular to the axis of rotation and the axis of rotation is located substantially in the middle of the plate in the direction of sliding at 1 / 6th of the length of the plateau near. Thus, the volume swept by the seat during its rotation is relatively low. Thus, it is easier to allow to retract the seat without having to move the seats in front or behind, or to open the tailgate of the trunk. Other features and advantages of the present invention will appear in the following description of nonlimiting exemplary embodiments, with reference to the accompanying drawings in which: - Figures 1A, 1B, 1C, 1D, 1E and 1F describe a vehicle according to the invention in six successive positions of the tray between a position of use and a storage position; - Figure 2 is a partial perspective view along the arrow marked II in Figure 1A; FIG. 3 is an exploded partial representation of FIG. 2; FIG. 4 is a view along the arrow marked IV in FIG. 1A of a first embodiment of a vehicle according to the invention; FIG. 5 is a view along the arrow marked 15 V in FIG. 1B of the first embodiment; - Figures 6A, 6B, 6C, 6D and 6E show an enlarged partial view of a second embodiment in various successive positions between the use position and the storage position. The figures illustrate a vehicle 1 essentially comprising a floor 6 supporting a plate 2 on which a seat 4 is held. More specifically, the plate 2 comprises two shafts 8 pivoting in bores 78 formed in the floor 6 and extending along a 25 The axis of rotation 10. The plate 2 can thus pivot between a position of use in which the seat 4 is above the tray to receive a passenger, as shown in Figure 1A, and a storage position in which seat 4 is disposed under the plate 2 in a housing 12 formed in the floor 6. The plate 2 substantially defines a flat plate of substantially rectangular shape. The housing 12 forms a substantially parallelepipedal vessel extending under the plate 2. The axis of rotation 10 extends substantially horizontally and perpendicular to a longitudinal direction 80 of the vehicle 1. The vehicle comprises two rails 22 arranged in parallel and substantially identical. In the following description, a single slide 22 will be detailed. The slide 22 is interposed between the plate 2 and the seat 4. This slide 22 extends in a direction of sliding perpendicular to the axis of rotation 10. It essentially comprises a fixed section 24 and a movable section 26 adapted to slide relative to each other in the direction of sliding 20. The fixed profile 24 is fixed on the plate 2, while the seat 4 is fixed on the movable section 26. In the position of use, the slide 22 is substantially horizontal and the sliding direction 20 extends substantially parallel to the longitudinal direction 80. The vehicle further comprises a translation locking device comprising an active state in which it prohibits the sliding of the movable section 26 relative to the fixed section 24 in the sliding direction 20 and an inactive state in which it allows sliding of the movable section 26 relative to the fixed section 24. As in particular in Figures 2 and 3, the locking device in translation essentially comprises a lever 32 pivotally mounted about an axis of rotation 30 on the movable section 26, notches 28 made in the fixed profile 24 and a flexible blade 34 having teeth 40 for cooperating with the notches 28. The lever 32 has a front end 32A and a rear end 32B disposed on either side of the axis of rotation 30. The axis of rotation 30 extends substantially parallel to the axis of rotation 10. A control member (not shown), such as a spreader or the like, is provided to cooperate with the front end 32A of the lever 32, to ensure the unlocking of the slides 32 and allow the adjustment of the seat 4 in the direction of sliding 20. The flexible blade 34 has at one end an attachment portion 36 secured to the movable section 26 and at the opposite end a locking portion 38 having the teeth 40. By elasticity of the flexible blade 34, the teeth 40 tend to fit in the notches 28 of the fixed section 24. The pivoting of the lever 32 about the axis of rotation 30 causes the displacement of the rear end 32B which then bears on the flexible blade 34 via a bearing 44, which releases the teeth 40 of the notches 28 of the fixed profile and allows the movable section 26 to slide in the direction of sliding relative to to the fixed profile 24. The pivoting of the lever 32 to unlock the slide 22, can also be controlled via a cable 48 fixed to the front end 32A of the lever 32 and sliding in a sheath 46. The vehicle further comprises a rotation locking device comprising an active state in which it prohibits the pivoting of the plate 2 with respect to the floor 6 about the axis of rotation 10 and an inactive state in which it allows the pivoting of u plate 2 relative to the floor 6 about the axis of rotation 10. The plate 2 has a length L in the longitudinal direction and the rotation shafts 8 extend in the transverse direction and are in the middle of the plate in the direction longitudinal, so that the plate occupies substantially the same position, both in the use position in storage position. In the embodiment illustrated in FIGS. 4 and 5, the rotational locking device comprises a plurality of locking fingers 50 sliding in a direction parallel to the axis of rotation 10 each integrating a pin 54 sliding in a guide groove 56 arranged in a control plate 58. The control plate 58 is pivotally mounted on the plate 2 about an axis of rotation 60 perpendicular to the sliding direction 20 and the axis of rotation 10. The rotation of the plate command 58 simultaneously causes the output of the three locking fingers 50 to lock the plate 2 in the position of use by inserting into corresponding bores 52 made in the floor 6, or conversely, their retraction to bring them to the the distance from the bores 52, in the direction of rotation of the control plate 58. A torsion spring 62 subjects the control plate 58 to a torque tending to do so. to bring the latching fingers 50 into their extended position. A lever 70 rotatably mounted on the plate 2 about an axis of rotation parallel to the axis of rotation 60 makes it possible to control a connecting rod 72 rotatably mounted at one of its ends on the lever 70 and to the other of its ends on the control plate 58 along axes of rotation parallel to the axis of rotation 60 of the control plate 58. A strap 74 fixed on the lever 70 makes it possible to turn the control plate 58 around the axis 25 of rotation 60 against the action of the torsion spring 62 through the rod 72 and the lever 70 to bring the locking fingers 50 in their retracted position and thus unlock the plate 2 relative to the floor 6. When the control plate 58 has rotated sufficiently to release the control fingers 50 from the bores 52, a tab 64 pivotally mounted via an axis 66 on the plate 2 blocks the control plate 58 in this case. position under 35 solicited quote from a spring 68.

  The sheaths 46 are held at one end on the movable section 26 of each of the slides 22 and at their other end on the plate 2. The cables 48 held at one end on the levers 32 of each of the slides 22 are held at their other end. on the control plate 58, so that the rotation of the control plate 58 causing the retraction of the locking fingers 50 generates via the control cables 48 the unlocking of the movable profiles 26 of the slides 22.

  In the position of use illustrated in FIG. 1A, the seat 4 extends above the plate 2 and the housing 12 has an access opening 14 closed by the plate 2 and a mobile hatch 16. This mobile hatch 16 here consists of three flaps pivotally mounted on the floor 6 and with respect to each other, to fold accordion. When the user wishes to retract the seat 4 in the housing 12, it folds the backrest 5 against the seat 3 which lowers concomitantly. Then, it brings the mobile hatch 16 away from the access opening 14 of the housing 12. Then, it pulls on the strap 74, which by rotation of the control plate 58 causes the locking fingers 50 to the spacing of the bores 52 and the teeth 40 away from the notches 28. The seat 4 can then slide freely in the sliding direction 20 with respect to the plate 2 thanks to the slides 22 and pivot about the axis of rotation 10 fixed from the floor 6. From the position shown in Figure 1B, pressing the back of the seat 4, the user can rotate the plate 4 about the axis of rotation 10. The sliding direction 20 being then inclined relative to the horizontal, the seat 4 will then slide by gravity along the slideways 22 to reach the rear end stop, as shown in Figure 1C.

  Under the action of gravity, the rotational movement of the seat 4 relative to the floor 6 around rotation 10 continues. As illustrated in Figures 1D and 1E, when the seat 4 comes into contact with the walls defining the housing 12, in particular the bottom wall, the seat 4 slides along the sliding direction 20 through the slides 22 and leaves its extreme rear position, which allows to continue the rotational movement of the plate 2 about the axis of rotation 10 until it arrives in storage position rotated 180 degrees relative to the position of use, as illustrated in Figure 1F. The sliding of the seat 4 along the slideways 22 in the direction of sliding 20 combined with the rotation of the plate 2 relative to the floor 6 about the axis of rotation 10 allows the seat 4 to be returned into a housing 12 corresponding closely to the size of the seat 4. It is then possible to close the mobile flap 16 above the seat 4 to close the access opening 14. In order to reduce the wear of the seat 4 by friction against the bottom wall of the housing 12 it is advantageously covered with a material having a low coefficient of friction, such as polytetrafluoroethylene (Teflon). In order to return the seat to the position of use, from the storage position illustrated in FIG. 1F, the user brings the mobile hatch 16 away from the access opening 14, then pivots the plateau 2 around the axis of rotation 10 180 degrees The retaining tab 64 has a release flange 76 which bears on the floor 6 when the plate 2 is returned to the storage position, which pivots the leg 64 and away from the control plate 58. Under the action of the torsion spring 62, the control plate 58 then causes the insertion of the locking fingers 50 in the bores 52 and, on the other hand, releases the pulling on the cables 48, which allows the teeth 40 to engage in the notches 28 of the fixed profile 24. The seat 4 is then locked in rotation about the axis of rotation 10 and in translation in the direction Sliding 20. An adjustment in the direction of sliding 20 is however possible via the control lifter.

  FIGS. 6A to 6E describe an alternative embodiment in which the locking means in rotation essentially comprise pins 150 carried by the plate 2 and two bars 158 arranged on either side of the plate 2, sliding relative to the floor 6 following the longitudinal direction 80. The bars 158 are substantially identical and their displacement in the direction of sliding 80 is controlled by a control handle 174. They include openings 152a, 152b, 152c for receiving the pins 150. The openings 152a comprise a notch 154 extending in the longitudinal direction 80 and a notch 156 extending perpendicular to the longitudinal direction 80 and the axis of rotation 10. The openings 152b extending at the ends of the bars 158 in the longitudinal direction 80 do not have the notch 156. As for the openings 152c, they are devoid of notches 154 in the realization FIGS. 6A to 6E, in order not to lock the tray in the storage position. Alternatively, it could however provide to provide the openings 152c notches 154, so that they would then have a substantially inverted shape relative to the openings 152A, to lock the tray in the storage position. The notches 156 serve to stop the plate 2 in rotation about the axis of rotation 10. The notches 154 allow to lock the plate 2 in rotation by holding the pins 150, under the action of a spring tending to move the bars 158 forwardly in the longitudinal direction 80 in the absence of action on the control handle 174. From the use position illustrated in Figure 6A, and after removing the movable door 16, the user unlocks the plate 2 in rotation around the axis 10 by pulling on the control handle 174. As illustrated in FIG. 6B, the bars 158 are then moved backwards in the longitudinal direction 80, so that the Nipples 150 are then away from the notches 154. The user can then print a rotational movement to the plate 2 about the axis of rotation 10 as shown in Figure 6C. The rotational movement of the plate 2 about the axis of rotation 10 towards the storage position causes a tension on the cable 46 which, in this embodiment, is held at one end on the lever 32 and at the other end 6. When the plate 2 is in a substantially vertical intermediate position, as shown in FIG. 6D, the tension exerted on the cable 46 is such as to cause the unlocking of the movable section 26 with respect to the fixed profile 24. As described above, the seat 4 then continues its rotational movement about the axis of rotation 10 and slides simultaneously in the sliding direction 20 through the slides 22, until arriving in the position storage shown in Figure 6E. In the storage position, the studs 150 are received in the openings 152c limiting the amplitude of rotation of the plate 2 around the axis of rotation 10. The plate 2 is then returned 180 degrees relative to the position of use.

  The axis of rotation 10 of the plate 2 extending in the middle of the plate 2 in the sliding direction 20, the plate occupies substantially the same part of the access opening 14 in the position of use and in the position of storage. By rotating the plate 2 in the opposite direction, the tray is returned to the position of use. When the plate 2 has passed through the intermediate position, the tension in the cable 48 is no longer sufficient, the teeth 40 come into engagement in the notches 28 of the fixed section 24. The seat 4 is then locked in translation in the direction of sliding 20. When the plate reaches the position of use, the pins 152a, 152b fit into the notches 154 and the plate 2 is then locked in rotation about the axis of rotation 10. Naturally, the invention is not limited to the embodiments which have just been described by way of nonlimiting illustration. In particular, although in the illustrated embodiments, the seat 4 pivots about the axis of rotation 10 to the rear, it would be perfectly possible to rotate it forward. It could also be provided that the locking device 28, 30, 32, 34, 40 in translation is automatically placed in its inactive state when the file is folded down on the seat and placed in its active state when the file is in normal position d use, away from the seat.

Claims (10)

  Vehicle (1) comprising: - a supporting structure (2), - a seat (4) held on the supporting structure (2), - a floor (6) on which the supporting structure (2) is pivotally mounted around an axis of rotation (10) between a position of use in which the seat (4) is above the supporting structure (2) and a storage position in which the seat (4) is arranged under the structure carrier (2), in a housing (12) formed in the floor (6), - a rotation locking device comprising an active state in which it prohibits the pivoting of the carrier structure (2) relative to the floor (6) around the axis of rotation (10) and an inactive state in which it allows the carrier structure (2) to pivot relative to the floor (6) about the axis of rotation (10), said locking device being rotation (50, 52, 54, 56, 58, 60, 62, 70, 72, 74; 150, 152a, 152b, 154, 156, 158) comprising a stud (50, 150) and an opening complementary ture (52; 152a, 152b), the pin (50, 150) and the opening (52; 152a, 152b) being connected for one to the supporting structure (2) and for the other to the floor (6), the pin ( 50, 150) being inserted into the opening (52; 152a, 152b) with which it cooperates in the active state and extending away from the opening (52; 152a, 152b) in the inactive state .   The vehicle according to claim 1, further comprising: - a slideway (22) extending in a sliding direction (20) and comprising a fixed section (24) and a movable section (26) adapted to slide one by report according to a sliding direction (20), said seat (4) being connected to the movable section (26), the slide (22) being substantially horizontal with the seat disposed substantially above in the position of use, the slide ( 22) being substantially horizontal with the seat (4) disposed substantially below in the storage position, - a locking device in translation (28, 30, 32, 34, 40, 42) comprising an active state in which it prohibits sliding of the movable section (26) with respect to the fixed profile (24) in the sliding direction (20) and an inactive state in which it allows the sliding section (26) to slide relative to the fixed profile (24) according to the sliding direction (20 ), and - a control system (46, 48) for automatically placing the translation locking device (28, 30, 32, 34, 40, 42) in its inactive state during at least part of the pivoting of the supporting structure (2) between the use position and the storage position.   A vehicle according to claim 1 or claim 2, wherein the rotational locking device (50, 52, 54, 56, 58, 60, 62, 70, 72, 74; 150, 152a, 152b, 154, 156; , 158) comprises a plurality of pins (50) sliding simultaneously between an extended position in which they are intended to fit each into an opening (52) and a retracted position in which they are away from the openings (52). .   4. Vehicle according to claim 3, wherein the openings (52) are formed in the floor, the pins (50) slide in the carrier structure (2) and each have a pin (54) sliding in a guide groove (56). ) formed in a control plate (58) pivotally mounted on the support structure (2), so that the rotation of the control plate (58) causes the simultaneous movement of the pins (50) to the extended position or to the retracted position .   A vehicle according to claim 4 when dependent on claim 2, wherein the rotation of the control plate (58) disables the translational locking device (28, 30, 32, 34, 40, 42). via the control system (46, 48).   The vehicle of claim 5, wherein the control system comprises a cable (48) sliding in a sheath (46).   A vehicle as claimed in claim 5 or claim 6, further comprising: a return spring (62) tending to pivot the control plate (58) to bring the stud (50) into the extended position, and a leg holding means (64) opposing the action of the return spring (62) to immobilize the control plate (58) in rotation and maintain the pin (50) in the retracted position and the translation locking device (28, 30, 32, 34, 40, 42) in its inactive state.   A vehicle according to claim 1 or claim 2, wherein the pin (150) is carried by the carrier structure (2) and the rotational locking device further comprises a bar (158) having said opening (152a, 152b). ), said bar (158) sliding relative to the floor (6) in a longitudinal direction (80) perpendicular to the axis of rotation (10) between an advanced position in which the opening (152a, 152b) is intended to receive the stud (150) and a retracted position in which the opening (152a, 152b) is for releasing the stud (150).   9. Vehicle according to any one of the preceding claims, wherein the rotational locking device is automatically placed in its active state, when the seat is in the use position and in the storage position.   10. Vehicle according to any one of the preceding claims, wherein said bearing structure comprises a plate having a length (L) in a sliding direction (20) perpendicular to the axis of rotation (10) and the axis of rotation. is located substantially in the middle of the plate (2) in the direction of sliding (20) to 1 / 6th of the length (L) of the plateau.