WO2010073372A1 - 格納式車両用シート - Google Patents
格納式車両用シート Download PDFInfo
- Publication number
- WO2010073372A1 WO2010073372A1 PCT/JP2008/073743 JP2008073743W WO2010073372A1 WO 2010073372 A1 WO2010073372 A1 WO 2010073372A1 JP 2008073743 W JP2008073743 W JP 2008073743W WO 2010073372 A1 WO2010073372 A1 WO 2010073372A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- seat
- link
- hole
- guide
- support shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/30—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/30—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats
- B60N2/3002—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats back-rest movements
- B60N2/3004—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats back-rest movements by rotation only
- B60N2/3009—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats back-rest movements by rotation only about transversal axis
- B60N2/3011—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats back-rest movements by rotation only about transversal axis the back-rest being hinged on the cushion, e.g. "portefeuille movement"
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/30—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats
- B60N2/3038—Cushion movements
- B60N2/3063—Cushion movements by composed movement
- B60N2/3065—Cushion movements by composed movement in a longitudinal-vertical plane
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/30—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats
- B60N2/3088—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats characterised by the mechanical link
- B60N2/309—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats characterised by the mechanical link rods
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/32—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles convertible for other use
- B60N2/36—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles convertible for other use into a loading platform
Definitions
- the present invention relates to a retractable vehicle seat device.
- Japanese Patent Laying-Open No. 2006-264582 discloses a retractable vehicle seat device.
- a seat installation surface and a storage recess located behind the seat installation surface are formed on the floor surface in the vehicle.
- a pair of left and right front links and a pair of left and right rear links are rotatably connected to the floor using a hinge mechanism.
- a hinge mechanism is provided at the upper end of each front link and rear link.
- the seat portion of the seat is connected to be rotatable.
- the front link and the rear link are connected by a cable for linking the rotational operations of the two, and an electric motor for rotationally driving the rear link is provided on the seat portion.
- the front link and the rear link are rotated by the driving force of the electric motor. Then, the sheet rotates and moves to a use position where the sheet is placed on the sheet installation surface according to a rotation locus defined by the four links. Further, when the electric motor is reversely rotated while the seat is in the use position, the seat rotates to the storage position according to the rotation locus defined by the four links.
- the seat can be rotated and moved while the seat portion is maintained parallel to the floor surface.
- the rotational resistance of each hinge mechanism increases during the rotational movement of the seat, and the seat cannot be smoothly rotated.
- An object of the present invention is a retractable vehicle seat capable of smoothly rotating a seat while preventing the rattling of the seat in a seated state while having a structure in which the rotation locus of the seat is defined by front and rear links. Is to provide.
- the retractable vehicle seat of the present invention is configured such that both ends of the seat have a seat, a seat installation surface arranged in front and rear, a vehicle floor having a storage recess, and the seat are rotatably connected to each other.
- a rotation support shaft projecting from one of the seat portion and / or the vehicle floor surface-side fixing member, and the rotation support shaft formed on the other is rotatably engaged and is positioned at the position of the seat portion.
- the support slot or the rotation support shaft was formed
- the guide protrusion formed on the seat or the fixing member is movably engaged and is a substantially arc-shaped hole centered at one point in the support elongated hole, and is guided when positioned at the use position.
- the portion where the protrusion is located is the same width as the guide protrusion, and the portion where the guide protrusion is located when it is positioned closer to the storage position than the use position is provided with a guide hole that is wider than the guide protrusion, and the rotation support shaft. And an urging means for urging and moving in one direction along the long support hole.
- the “same width” does not mean only when the dimensions of the guide protrusion and the corresponding portion of the guide hole are completely the same. That is, there is a slight clearance between the two, but sliding resistance is generated between the corresponding portion of the guide hole and the guide projection, and the front link and / or the rear link can be prevented from rotating from the use position. It is a concept that includes cases.
- a front link in which at least one of the front link and the rear link and the seat portion are provided with the guide protrusion protruding, and the guide protrusion is provided in a part of the guide hole provided in the other;
- the rear link is outside the range of the use position from the storage position and the lower end of the front link or the rear link is positioned higher than the lowest point, It is preferable to form a temporary fixing recess that holds the position of the front link or the rear link.
- the rotation trajectory of the seat (seat portion and backrest portion) is defined by the front side link and the rear side link, the seat is maintained while maintaining the parallel state of the seat portion and the vehicle floor surface. Can be rotated.
- the rotation support shaft which is the rotation center of the link, can move in the support slot in the front-rear direction, and the width of the guide hole excludes the portion where the guide protrusion is located when the seat is in the use position.
- the guide protrusion engages with a portion of the guide hole having the same width as the diameter of the seat, so that the link is prevented from rattling against the seat and the vehicle floor. Therefore, a stable seating state can be provided to the passenger.
- At least one of the front link and the rear link can be temporarily held in a state substantially parallel to the seat portion. Then, the vertical dimension of the entire retractable vehicle seat is shorter than when not temporarily held, so the front and rear links can be connected to the back of the vehicle body without lifting the retractable vehicle seat to a high position.
- the retractable vehicle seat can be placed in the vehicle without contacting the edge of the side opening.
- FIG. 1 is a side view of a vehicle to which a retractable seat device according to a first embodiment of the present invention is applied. It is a side view when a sheet
- FIG. 6 it is a side view similar to FIG. 6 when the sheet is located at the use position. It is a side view of the principal part of the seat part frame of the 2nd Embodiment of this invention. Similarly, it is a side view similar to FIG. 6 when the front side link of the second embodiment is temporarily held.
- the floor surface 11 in the vehicle 10 has a seat installation surface 12 formed side by side, a seat installation surface 13, and a storage space located immediately after the rear seat installation surface 13.
- a recess 14 is provided.
- the retractable sheet device 20 that is the second row of sheets is a sheet that can be stored in the storage recess 14 and can be placed on the sheet setting surface 13, and its specific structure is as follows.
- the retractable seat device 20 includes a seat portion 21 and a backrest portion 22 whose lower end portion is rotatably connected to the rear end portion of the seat portion 21 via a rotation shaft in the left-right direction.
- the backrest 22 rotates between an upright position (position in FIG. 1) substantially orthogonal to the seat 21 and a folding position (position in FIGS. 2 to 4) substantially parallel to the seat 21. Is possible.
- Two strikers 17F project in the vicinity of the front end portion of the seat installation surface 13 as a pair of left and right, and two strikers 17R project in the vicinity of the rear end portion of the seat installation surface 13 as a pair of left and right.
- one striker 18 projects from the central portion of the bottom surface 16 of the storage recess 14.
- a metal front bracket (a vehicle floor surface fixing member) 25 is fixed to the central portion of the front wall 19 of the storage recess 14 in the left-right direction, and the lower end portion of the metal front link 27 is fixed to the front bracket 25. Is rotatably supported via a rotation shaft 26 extending in the left-right direction.
- the front link 27 can rotate around the rotation axis 26 between a front rotation end position (see FIG. 4) and a rear rotation end position (see FIG. 2) substantially parallel to the bottom surface 16.
- a pair of left and right seat frames 50 (components of the seat) made of metal and extending in the front-rear direction are fixed to the bottom surface (upper surface) of the bottom space (not shown) formed at the bottom of the seat portion 21.
- An upper end portion of the front link 27 is rotatably connected to the seat frame 50 via a rotation support shaft 30 extending in the left-right direction.
- a metal rear bracket (vehicle floor fixing member) 31 is fixed as a pair of left and right near the front end of the bottom surface 16 of the storage recess 14, and the left and right rear brackets 31 extend in the left-right direction.
- the vicinity of the left and right end portions of the made rotating shaft 32 is rotatably supported.
- the lower end portions of a pair of left and right rods 33 made of metal are fixed to the left and right end portions of the rotating shaft 32, respectively.
- the lower ends of a pair of left and right rear legs 35 made of metal are fixed to the upper ends of the left and right rods 33, respectively.
- a striker entry groove 36 is formed near the lower end of the front surface of the rear leg 35.
- a known rear lock mechanism that includes a hook and a pole that can rotate together and can be engaged with and disengaged from the striker 17R.
- a connecting rotary member 38 positioned in the bottom space is rotatably connected to upper ends of the left and right rear legs 35 positioned in the bottom space of the seat portion 21 via a rotation shaft 37 extending in the left-right direction.
- the connecting rotation member 38, the rod 33, and the rear leg 35 are components of the rear link.
- the rear end portion of the linkage link 41 extending in the front-rear direction is rotatably connected to the left and right connection rotation members 38 via the rotation shaft 40 extending in the left-right direction.
- the left and right linkage links 41 are located in the bottom space, and the left and right rotating shafts 40 are rotatably supported by the seat frame 50.
- the lower end portion of the rod 33 is rotatably supported by the rear bracket 31 by the rotating shaft 32, and the upper end portion of the rear leg 35 is attached to the seat frame 50 via the rotating shaft 37, the connecting rotating member 38, and the rotating shaft 40. Since they are connected, the rod 33 and the rear leg 35 are rotatable between a rear rotation end position (see FIG. 4) and a front rotation end position (see FIG. 2) that is substantially parallel to the bottom surface 16. is there. As shown in the drawing, the front end portions of the left and right linkage links 41 are connected to the vicinity of the upper end portion of a metal front leg 45 through a rotating shaft 44 extending in the left-right direction.
- the left and right front legs 45 are coupled to each other by a connecting member (not shown) extending in the left-right direction, and the upper ends thereof are rotatably connected to the seat frame 50 via a rotation shaft 48 extending in the left-right direction. Since the left and right front legs 45 are linked to the left and right rear legs 35 via the left and right linkage links 41 and the connecting rotation member 38, the rear legs 35, the rod 33 and the front legs 45 rotate in synchronization. That is, when one of the rear leg 35 and the front leg 45 is positioned in the storage position (see FIG. 2) stored in the bottom space of the seat portion 21, the other is positioned in the storage position stored in the bottom space. When one of the leg 35 and the front leg 45 is positioned at an orthogonal position (see FIG.
- a known front lock mechanism that includes a hook and a pole that can rotate together and can be engaged with and disengaged from the striker 17F.
- a hook member 57 is rotatably supported on a seat frame 50 fixed to the bottom surface of the bottom space of the seat 21 via a rotation shaft extending in the left-right direction.
- the hook member 57 is a member that can be engaged with and disengaged from the striker 18 projecting from the storage recess 14.
- the hook member 57 can be engaged with the striker 18 (position shown in FIGS. 2 to 4), It can rotate between a non-engageable position (not shown) that is impossible, and is urged to rotate toward the engagement position by the rotation urging force of a spring means (not shown).
- a lock release switch SW is provided on the right side surface of the seat portion 21.
- the lock release switch SW is slidable between a lock allowable position shown in FIG. 1 and a lock release position (not shown), and is always held at the lock allowable position by the biasing force of a spring means (not shown). Yes.
- the lock release switch SW is used to lock / unlock the hook member 57, the rear lock mechanism provided on the rear leg 35, and the front lock mechanism provided on the front leg 45 when the backrest 22 is in the folded position. It controls the lock state. That is, when the backrest 22 is in the upright position, the hook member 57, the rear lock mechanism, and the front lock mechanism are not affected, but the lock is allowed when the backrest 22 is in the folded position.
- the hook member 57 When in the position, the hook member 57 is in the engaged position, and the rear lock mechanism and the front lock mechanism are allowed to be locked, and the backrest 22 is locked in the folded position. When located in the release position, the hook member 57 is moved to the non-engagement position, and the rear lock mechanism and the front lock mechanism are unlocked.
- a substantially semicircular support portion 51 is formed at a substantially central portion in the longitudinal direction of the seat frame 50.
- a long support hole 52 extending in the front-rear direction and a substantially arc-shaped guide hole 53 centered at one point in the long support hole 52 are formed in the support portion 51 as through holes.
- the width of the guide hole 53 is not uniform, and the front end is the widest and gradually narrows toward the rear end.
- horizontal locking projections 56 that are located at the same height as the support long holes 52 project from the opposing surfaces of the left and right seat frame 50.
- the rotation support shaft 30 includes a support pin 30A and a first cylindrical member 30B.
- the metal support pin 30A is a rotating body centering on the axis in the left-right direction. Is provided with a small screw portion 30A3, and an annular groove 30A4 is recessed in the large diameter portion 30A1.
- the first cylindrical member 30B is a resin product, and an inner peripheral surface thereof is a cylindrical surface having substantially the same diameter as the small diameter portion 30A2, and an outer peripheral surface is a cylindrical surface having substantially the same diameter as the width of the support long hole 52.
- the first cylindrical member 30B is rotatably fitted to the small diameter portion 30A2 and is positioned inside the support long hole 52.
- the threaded portion 30A3 passes through a long hole 52 and a through hole (not shown) drilled in the upper end of the front link 27, and is screwed into a welding nut 28 that is concentric with the through hole welded to the outer surface of the front link 27. Match. Therefore, the front side link 27 can rotate around the rotation support shaft 30. Furthermore, since the longitudinal length of the support long hole 52 is longer than the diameter of the first cylindrical member 30 ⁇ / b> B, the upper end portion of the front link 27 can slide along the support long hole 52.
- a through hole 29 is formed in a portion located slightly below the upper end portion of the front link 27, and the portion is connected to the guide hole 53 via the guide protrusion 60.
- the guide protrusion 60 includes a guide pin 60A and a second cylindrical member 60B.
- the metal guide pin 60A is a rotating body centered on the axis in the left-right direction. Is provided with a small screw portion 60A3.
- the second cylindrical member 60 ⁇ / b> B is a resin product, and an inner peripheral surface thereof is a cylindrical surface having substantially the same diameter as the small diameter portion 60 ⁇ / b> A ⁇ b> 2, and an outer peripheral surface is a cylindrical surface having a diameter that can be inserted into the guide hole 53.
- the second cylindrical member 60B is rotatably fitted to the small diameter portion 60A2 and is located inside the guide hole 53.
- the threaded portion 60A3 passes through the through hole 29 of the front link 27, and a nut N located outside the front link 27 is screwed into the threaded portion 60A3. Therefore, when the front link 27 rotates around the rotation support shaft 30, the portion of the front link 27 in which the through hole 29 is formed rotates around the rotation support shaft 30 while being guided by the guide projection 60 and the guide hole 53. . Furthermore, since both ends of a tension spring (biasing means) S extending in the front-rear direction are locked to the annular groove 30A4 and the locking projection 56 of the support pin 30A, the rotary support shaft 30 is always moved backward. It is energized.
- the operation of the retractable seat device 20 configured as above will be described.
- the seat hereinafter, the seat portion 21 and the backrest portion 22 are combined.
- the sheet is located at the storage position where the entirety is located in the storage recess 14. Further, since the hook member 57 located at the engagement position is engaged with the striker 18, the sheet cannot move from the storage position.
- the positional relationship between the upper end of the front link 27 and the seat frame 50 at this time is as shown in FIG. As shown in FIG.
- the rotation support shaft 30 is positioned at the front end of the support long hole 52 against the biasing force of the tension spring S, and the guide protrusion 60 is positioned near the front end of the guide hole 53. ing. Since the width of the portion of the guide hole 53 is larger than the diameter of the second cylinder member 60B, the second cylinder member 60B and the guide hole 53 are not in contact with each other, and the rotary support shaft 30 slides inside the support long hole 52. Even if the mounting position accuracy of the front link 27 and the front bracket 25 to the floor surface 11 and the mounting position accuracy of the rod 33 or the connecting rotary member 38, the rear bracket 31 and the seat frame 50 are somewhat out of order, No excessive force is applied to the rotary connection mechanism.
- FIG. 7 shows the positional relationship between the upper end portion of the front link 27 and the seat frame 50 when the seat is rotationally moved to the position shown in FIG. As shown in FIG.
- the rotary support shaft 30 moves to the rear end portion of the support long hole 52 while receiving the biasing force of the tension spring S, and the guide protrusion 60 is located at the intermediate portion of the guide hole 53. Yes. Since the width of the portion of the guide hole 53 is also larger than the diameter of the second cylinder member 60B, the second cylinder member 60B and the guide hole 53 are not in contact with each other. This non-contact state continues until just before the sheet reaches the use position, and the rotation support shaft 30 receiving the urging force from the tension spring S moves in the support long hole 52 with a stable behavior. No force is applied to each rotary connecting mechanism until just before reaching the position. Therefore, it is possible to smoothly rotate and move the sheet until just before reaching the use position. In addition, since the rotation locus of the seat is defined by the front link 27 and the rod 33 (and the rear leg 35, the connecting rotation member 38), the seat portion 21 is always substantially parallel to the floor surface 11 during the rotational movement. .
- FIG. 8 shows the positional relationship between the upper end portion of the front link 27 and the seat frame 50 when the seat is rotationally moved to the use position.
- the rotary support shaft 30 moves to the intermediate position of the support long hole 52 while receiving the biasing force of the tension spring S, and the guide protrusion 60 is positioned in the vicinity of the rear end of the guide hole 53.
- the width of the portion of the guide hole 53 is the same as the diameter of the second cylindrical member 60B. Therefore, since the outer peripheral surface of the second cylindrical member 60B contacts the guide hole 53, the support state of the front link 27 by the seat frame 50 is stabilized. Therefore, even if the passenger is seated, the seat portion 21 does not rattle.
- the backrest 22 In order to return the seat to the retracted position shown in FIG. 2 from this state, the backrest 22 is returned to the folded position, and then the lock release switch SW located at the lock allowable position is slid to the lock release position. The lock mechanism and the rear lock mechanism are shifted to the unlocked state. Then, if a backward moving force is applied to the seat, the seat rotates backward according to the rotation locus. If the lock release switch SW is returned to the lock allowable position and the sheet is further rotated backward, the sheet moves to the storage position. During this rotation operation, the rotation support shaft 30, the guide protrusion 60, and the tension spring S move in the reverse direction to the above, so that the seat smoothly rotates to the retracted position. When the sheet reaches the retracted position, the hook member 57 is automatically engaged with the striker 18, so that the sheet is held at the retracted position.
- the retractable seat device 20 is assembled outside the vehicle 10 and inserted into the vehicle 10 through a rear opening (not shown) opened by opening a back door (not shown) of the vehicle 10.
- a rear opening not shown
- a back door not shown
- the front link 27, the rod 33, and the rear leg 35 are long as shown in FIGS. 2 to 4, when the front link 27, the rod 33, and the rear leg 35 are hung downward (the lower ends thereof are positioned at the lowest point). Then, the vertical dimension of the retractable seat device 20 becomes considerably large.
- a temporary fixing recess 54 is formed at the rear end of the guide hole 53.
- the width (vertical dimension) of the recess 54 for temporary fixing is the same as the diameter of the second cylinder member 60B, and the second cylinder member 60B (guide protrusion 60) when the sheet in the guide hole 53 is located at the use position.
- the width of the portion from the portion where the is located to the temporary fixing recess 54 is the same as that of the second cylindrical member 60B.
- retractable seat device 2 0 can be put in the vehicle 10 without being brought into contact with the edge of the rear opening of the vehicle 10 without being lifted to such a high position. Thereafter, the front link 27, the rod 33, and the rear leg 35 are rotated forward, and the guide protrusion 60 (second cylindrical member 60B) is allowed to escape forward from the temporary fixing recess 54.
- the side bracket 31 can be fixed to the floor surface 11.
- the present invention has been described based on the first and second embodiments, the present invention is not limited to these embodiments and can be implemented in various modes.
- the rotary connection mechanism including the support long hole 52, the guide hole 53, the rotation support shaft 30, the guide protrusion 60, the tension spring S, and the nut N is used for the front link 27 and the front bracket 25. It may be provided between the rear leg 35 and the seat frame 50 or between the rod 33 and the rear bracket 31.
- a rotational connection mechanism may be provided at a plurality of locations (for example, between the front link 27 and the seat frame 50 and between the rear leg 35 and the seat frame 50).
- a rotation connection mechanism may be provided between the coupling rotation member 38 and the seat frame 50.
- the rotation connection mechanism is connected between the front link 27 and the seat frame 50 and the rear leg 35.
- the seat frame 50 may be provided.
- the temporary fixing recess 54 may be formed in front of the portion where the second cylindrical member 60B (guide protrusion 60) is positioned.
- the support long hole 52 may be provided in the front link 27 or the rear leg 35, and a projecting member corresponding to the rotation support shaft 30 may be provided in the seat frame 50.
- the rotation support shaft 30 may be an integral body having a columnar portion that has the same diameter as the first cylinder member 30B and fits into the support long hole 52, instead of having the first cylinder member 30B.
- the guide protrusion 60 may be an integral body having a columnar portion that has the same diameter as the second cylinder member 60B and fits into the guide hole 53, instead of having the second cylinder member 60B.
- the long support holes 52 and the guide holes 53 may be bottomed holes (concave portions).
- a member other than a tension spring for example, a compression spring, rubber, etc.
- the storage recess 14 may be formed in front of the sheet installation surface 13.
- the seat rotation trajectory is defined by the front and rear links, the seat can be smoothly rotated and the rattling of the seat in the seated state can be prevented. There is sex.
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- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
Abstract
Description
先行技術文献では、車両内の床面にシート設置面とシート設置面の後方に位置する格納用凹部とを形成している。該床面には左右一対の前側リンクと左右一対の後側リンクの下端部がヒンジ機構を利用して回転可能に接続してあり、各前側リンク及び後側リンクの上端部にはヒンジ機構を介してシートの座部が回転可能に接続してある。さらに、前側リンクと後側リンクは両者の回転動作を連係させるためのケーブルによって繋いであり、座部には後側リンクを回転駆動するための電動モータが設けてある。
そのため、シートが格納用凹部に格納された格納位置に位置する状態で電動モータを作動させると、電動モータの駆動力によって前側リンク及び後側リンクが回転する。すると、シートは4つのリンクによって規定された回転軌跡に従って、シート設置面に載置される使用位置まで回転移動する。また、シートが使用位置に位置している状態で電動モータを逆転させると、シートは4つのリンクによって規定された回転軌跡に従って格納位置まで回転移動する。
しかしながら、前後のリンクの座部や床面に対する取付位置精度が少しでも狂うと、シートの回転移動中に各ヒンジ機構の回転抵抗が大きくなり、シートを円滑に回転移動できなくなってしまう。
なお、ここでいう「同幅」とは案内突部と案内孔の当該部分の寸法が完全に一致する場合だけを意味するものではない。即ち、両者の間に僅かなクリアランスがあるが、案内孔の当該部分と案内突部の間に摺動抵抗が発生し、前側リンク又は/及び後側リンクが使用位置から回転するのを規制できる場合も含む概念である。
しかも、リンクの回転中心である回転支持軸が支持長孔内を前後方向に移動可能であり、かつ案内孔の幅が、シートが使用位置に位置するときに案内突部が位置する部分を除いて案内突部の径より広幅なので、前後のリンクの座部や床面側の固定部材に対する取付位置精度が多少狂ったとしても、(使用位置に位置するときを除いて)前後のリンクと座部または車両床面側の固定部材との間の回転接続機構は常に円滑に動作する。さらにシートが使用位置側に回転移動するときは、付勢手段から付勢力を受けている回転支持軸が支持長孔内を安定した挙動で移動するので、シートが使用位置に到達する直前まで回転接続機構には無理は力は掛からない。従って、シートを円滑に回転移動させることが可能である。
さらに、シートが使用位置に位置すると、案内突部が案内孔における自身の径と同幅の部分に係合するので、リンクが座部及び車両床面に対してがたつくのが防止される。そのため、乗客に安定した着座状態を提供できる。
11 床面
12 13 シート設置面
14 格納用凹部
16 格納用凹部の底面
17F 17R ストライカ
18 ストライカ
19 格納用凹部の前壁
20 格納式シート装置
21 座部
22 背凭れ部
25 前側ブラケット(車両床面の固定部材)
26 回転軸
27 前側リンク
28 溶着ナット
29 貫通孔
30 回転支持軸
30A 支持ピン
30A1 大径部
30A2 小径部
30A3 ねじ部
30A4 環状溝
30B 第1の筒部材
31 後側ブラケット(車両床面の固定部材)
32 回転軸
33 ロッド(後側リンク)
35 後脚(後側リンク)
36 ストライカ進入溝
37 回転軸
38 連結回転部材(後側リンク)
40 回転軸
41 連係リンク
44 回転軸
45 前脚
48 回転軸
50 座部フレーム(座部)
51 支持部
52 支持長孔
53 案内孔
54 仮止め用凹部
56 係止突起
57 フック部材
60 案内突部
60A 案内ピン
60A1 大径部
60A2 小径部
60A3 ねじ部
60B 第2の筒部材
N ナット
S 引張ばね(付勢手段)
SW ロック解除スイッチ
図1~図4に示すように、車両10内の床面11には、前後に並べて形成したシート設置面12と、シート設置面13と、後方のシート設置面13の直後に位置する格納用凹部14とが設けてある。
格納式シート装置20は、座部21と、座部21の後端部にその下端部を左右方向の回転軸を介して回転可能に接続した背凭れ部22と、を具備している。背凭れ部22は、座部21に対して略直交する起立位置(図1の位置)と、座部21と略平行をなす折畳位置(図2~図4の位置)との間を回転可能である。
図2~図4に示すように、格納用凹部14の底面16の中央部には一つのストライカ18が突設してある。格納用凹部14の前壁19の左右方向の中央部には金属製の前側ブラケット(車両床面の固定部材)25が固着してあり、前側ブラケット25には金属製の前側リンク27の下端部が左右方向に延びる回転軸26を介して回転可能に支持してある。前側リンク27は前側の回転端位置(図4参照)と、底面16と略平行になる後側の回転端位置(図2参照)との間を回転軸26回りに回転可能である。座部21の底部に形成した底部空間(図示略)の底面(上面)には、金属からなりかつ前後方向に延びる左右一対の座部フレーム50(座部の構成要素)が固着してあり、この座部フレーム50に左右方向に延びる回転支持軸30を介して前側リンク27の上端部が回転可能に接続している。
格納用凹部14の底面16の前端部近傍には金属製の後側ブラケット(車両床面の固定部材)31が左右一対として固定してあり、左右の後側ブラケット31には左右方向に延びる金属製の回転軸32の左右両端部近傍部分が回転可能に支持してある。回転軸32の左右両端部には、金属からなる左右一対のロッド33の下端部がそれぞれ固着してある。さらに、左右のロッド33の上端部には金属製である左右一対の後脚35の下端部がそれぞれ固定してある。後脚35の前面の下端部近傍にはストライカ進入溝36が形成してある。さらに、図示は省略してあるが左右の後脚35の内側面には、共に回転可能なフックとポールを具備しかつストライカ17Rと係脱可能な公知のリアロック機構が設けてある。
ロッド33の下端部が回転軸32によって後側ブラケット31に回転可能に支持され、かつ後脚35の上端部が回転軸37、連結回転部材38、及び回転軸40を介して座部フレーム50に接続しているので、ロッド33及び後脚35は後側の回転端位置(図4参照)と、底面16と略平行になる前側の回転端位置(図2参照)との間を回転可能である。
図示するように、左右の連係リンク41の前端部は左右方向に延びる回転軸44を介して金属製の前脚45の上端部近傍部分に接続している。左右の前脚45は、左右方向に延びる図示を省略した連結部材によって互いに結合してあり、その上端部は座部フレーム50に左右方向に延びる回転軸48を介して回転可能に接続している。
左右の前脚45は左右の連係リンク41及び連結回転部材38を介して左右の後脚35と連係しているので、後脚35及びロッド33と前脚45は同期しながら回転する。即ち、後脚35と前脚45の一方が座部21の底部空間内に収納される収納位置(図2参照)に位置するときは他方も底部空間内に収納される収納位置に位置し、後脚35と前脚45の一方が座部21に対して略直交する直交位置(図4参照)に位置するときは他方も座部21に対して略直交する直交位置に位置する。
図示は省略してあるが左右の前脚45の内側面には、共に回転可能なフックとポールを具備しかつストライカ17Fと係脱可能な公知のフロントロック機構が設けてある。
座部フレーム50の長手方向の略中央部には略半円形の支持部51が形成してある。支持部51には、前後方向に延びる支持長孔52と、支持長孔52の中の一点を中心とする略円弧形状の案内孔53が、共に貫通孔として形成してある。案内孔53の幅は均一ではなく、前端部が最も広幅で後端側に向かうにつれて徐々に狭くなっている。また、左右の座部フレーム50の対向面には、支持長孔52と同じ高さに位置する水平な係止突起56が突設してある。
回転支持軸30は支持ピン30Aと第1の筒部材30Bとを具備している。金属製の支持ピン30Aは左右方向の軸線を中心とする回転体であり、大径部30A1と、大径部30A1の端部に連なる小径部30A2と、小径部30A2の端部から延びる最も径が小さいねじ部30A3とを備え、大径部30A1には環状溝30A4が凹設してある。第1の筒部材30Bは樹脂製品であり、その内周面は小径部30A2と略同径の円筒面、外周面は支持長孔52の幅と略同径の円筒面である。第1の筒部材30Bは小径部30A2に回転可能に嵌合し、かつ支持長孔52の内部に位置している。ねじ部30A3は、支持長孔52と前側リンク27の上端部に穿設した貫通孔(図示略)を貫通し、前側リンク27の外面に溶着した該貫通孔と同心をなす溶着ナット28に螺合している。従って、前側リンク27は回転支持軸30を中心に回転可能である。さらに、支持長孔52の前後長は第1の筒部材30Bの径より長いので、前側リンク27の上端部は支持長孔52に沿ってスライド可能である。
前側リンク27の上端部より僅かに下方に位置する部分には貫通孔29が穿設してあり、当該部分は案内突部60を介して案内孔53に接続している。
案内突部60は案内ピン60Aと第2の筒部材60Bとを具備している。金属製の案内ピン60Aは左右方向の軸線を中心とする回転体であり、大径部60A1と、大径部60A1の端部に連なる小径部60A2と、小径部60A2の端部から延びる最も径が小さいねじ部60A3とを備えている。第2の筒部材60Bは樹脂製品であり、その内周面は小径部60A2と略同径の円筒面、外周面は案内孔53の内部に挿通可能な径の円筒面である。第2の筒部材60Bは小径部60A2に回転可能に嵌合し、かつ案内孔53の内部に位置している。ねじ部60A3は、前側リンク27の貫通孔29を貫通しており、ねじ部60A3には前側リンク27の外側に位置するナットNが螺合している。従って、前側リンク27が回転支持軸30を中心に回転すると、前側リンク27の貫通孔29が形成された部分は案内突部60と案内孔53によって案内されながら回転支持軸30を中心に回転する。
さらに、支持ピン30Aの環状溝30A4と係止突起56には、前後方向に延びる引張ばね(付勢手段)Sの両端部が係止してあるので、回転支持軸30は常に後方に移動付勢されている。
背凭れ部22が折畳位置にあり、かつ、前側リンク27とロッド33及び後脚35が後側の回転端位置に位置するとき、シート(以下、座部21と背凭れ部22をまとめてシートと呼ぶ)は図2に示すように全体が格納用凹部14内に位置する格納位置に位置する。さらに、係合位置に位置するフック部材57がストライカ18に係合しているのでシートは格納位置から移動不能となる。
このときの前側リンク27の上端部と座部フレーム50の位置関係は図6の通りである。図6に示すように、回転支持軸30は引張ばねSの付勢力に抗して支持長孔52の前端部に位置しており、案内突部60は案内孔53の前端部近傍に位置している。案内孔53の当該部分の幅は第2の筒部材60Bの径より大きいので第2の筒部材60Bと案内孔53は非接触であり、しかも回転支持軸30は支持長孔52の内部をスライド可能なので、前側リンク27と前側ブラケット25の床面11への取付位置精度やロッド33や連結回転部材38と後側ブラケット31及び座部フレーム50との取付位置精度が多少狂っていても、各回転接続機構には無理な力は掛からない。
図7はシートが図3の位置まで回転移動したときの前側リンク27の上端部と座部フレーム50の位置関係を示している。図7に示すように、回転支持軸30は引張ばねSの付勢力を受けながら支持長孔52の後端部まで移動しており、案内突部60は案内孔53の中間部に位置している。案内孔53の当該部分の幅も第2の筒部材60Bの径より大きいため第2の筒部材60Bと案内孔53は非接触である。この非接触状態はシートが使用位置に到達する直前まで続き、しかも、引張ばねSから付勢力を受けている回転支持軸30は支持長孔52内を安定した挙動で移動するので、シートが使用位置に到達する直前まで各回転接続機構には無理が力は掛かることはない。そのため、シートを使用位置に到達する直前まで円滑に回転移動させることが可能である。しかも、シートの回転軌跡は前側リンク27とロッド33(及び後脚35、連結回転部材38)によって規定されているので、回転移動中、座部21は常に床面11に対して略平行となる。
図8はシートが使用位置まで回転移動したときの前側リンク27の上端部と座部フレーム50の位置関係を示している。図8に示すように、回転支持軸30は引張ばねSの付勢力を受けながら支持長孔52の中間位置まで移動し、案内突部60は案内孔53の後端部近傍部に位置している。案内孔53の当該部分の幅は第2の筒部材60Bの径と同じである。そのため、第2の筒部材60Bの外周面が案内孔53に接触するので、座部フレーム50による前側リンク27の支持状態が安定する。従って、乗客が着座しても座部21ががたつくことはない。
ロック解除スイッチSWをロック許容位置に戻し、シートをさらに後方に回転移動させれば、シートは格納位置まで移動する。この回転動作中、回転支持軸30、案内突部60及び引張ばねSは上記と逆の動きをするので、シートは格納位置まで円滑に回転移動する。
シートが格納位置に到達すると、フック部材57がストライカ18に自動的に係合するのでシートは格納位置に保持される。
格納式シート装置20は車両10の外部で組み立てられ、車両10のバックドア(図示略)を開くことにより開放した背面開口部(図示略)から車両10内に挿入される。しかし、図2~図4に示すように前側リンク27とロッド33及び後脚35は長いため、前側リンク27とロッド33及び後脚35を下方に垂らすと(これらの下端が最下点に位置すると)、格納式シート装置20の上下寸法はかなり大きくなる。そのため、このような状態の格納式シート装置20を上記背面開口部から車両10内に入れる際に格納式シート装置20を十分な高さまで持ち上げないと、前側リンク27やロッド33の下端部が背面開口部の下縁部に接触するおそれがある。しかし、格納式シート装置20は相応の重量であるため、格納式シート装置20を高く持ち上げるのは作業者にとって大きな負担である。
そこで、本実施形態では案内孔53の後端部に仮止め用凹部54を形成している。仮止め用凹部54の幅(上下寸法)は第2の筒部材60Bの径と同一であり、案内孔53におけるシートが使用位置に位置するときに第2の筒部材60B(案内突部60)が位置する部分から仮止め用凹部54に至る部分の幅も第2の筒部材60Bと同じである。
格納式シート装置20を車両10の内部に入れる前に、前側リンク27とロッド33及び後脚35の先端部(下端部)を図10に示す位置まで回転させると、案内突部60(第2の筒部材60B)は案内孔53の内部のシートが使用位置に位置するときに位置する部分を通過して仮止め用凹部54に係合する。すると、作業者が前側リンク27とロッド33及び後脚35から手を離しても、前側リンク27とロッド33及び後脚35は当該状態に仮保持されるので、格納式シート装置20の上下寸法は前側リンク27の下端部とロッド33の下端部が最下点に位置する場合に比べて短くなる。従って、格納式シート装置2
0は、それ程高い位置まで持ち上げなくても車両10の背面開口部の縁部に接触させずに車両10内に入れられるようになる。
この後に前側リンク27とロッド33及び後脚35を前方に回転させて、案内突部60(第2の筒部材60B)を仮止め用凹部54から前方に脱出させれば、前側ブラケット25と後側ブラケット31を床面11に固定できる。
例えば、第1の実施形態において支持長孔52、案内孔53、回転支持軸30、案内突部60、引張ばねS、及び、ナットNからなる回転接続機構は、前側リンク27と前側ブラケット25の間や、後脚35と座部フレーム50の間、あるいはロッド33と後側ブラケット31の間に設けても良い。さらに、回転接続機構を複数箇所(例えば、前側リンク27と座部フレーム50の間、及び、後脚35と座部フレーム50の間)に設けても良い。
また、第2の実施形態において回転接続機構を、連結回転部材38と座部フレーム50の間に設けても良い。さらに、前側リンク27と後側リンク(ロッド33、後脚35、連結回転部材38)が同期しない場合は、上記回転接続機構を、前側リンク27と座部フレーム50の間、及び、後脚35と座部フレーム50の間に設けてもよい。また、案内孔53におけるシートが格納位置に位置するときに第2の筒部材60B(案内突部60)が位置する部分より前方に仮止め用凹部54を形成してもよい。 さらに、支持長孔52を前側リンク27または後脚35に設け、回転支持軸30に相当する突部材を座部フレーム50に設けてもよい。
また、回転支持軸30を、第1の筒部材30Bを具備しない代わりに、第1の筒部材30Bと同径で支持長孔52に嵌合する円柱部を備える一体物としてもよい。同様に、案内突部60を、第2の筒部材60Bを具備しない代わりに、第2の筒部材60Bと同径で案内孔53に嵌合する円柱部を備える一体物としてもよい。
また、支持長孔52や案内孔53を有底孔(凹部)としてもよい。
さらに、回転支持軸を移動付勢する付勢手段として、引張ばね以外のもの(例えば、圧縮ばね、ゴム等)を利用してもよい。
また、格納用凹部14をシート設置面13の前方に形成してもよい。
Claims (2)
- 座部を有するシートと、
前後に並ぶシート設置面と格納用凹部を備える車両床面と、上記座部とに、両端部がそれぞれ回転可能に接続し、上記シートを、上記格納凹部内に位置する格納位置と上記シート設置面の直上に位置する使用位置との間で回転移動させる前側リンク及び後側リンクと、
上記前側リンク又は/及び後側リンクと、上記座部又は/及び車両床面側の固定部材との一方に突設した回転支持軸と、
他方に形成した、該回転支持軸が回転可能に係合し、かつ上記座部の位置に応じて回転支持軸が相対位置を変化させる、略前後方向に延びる支持長孔と、
上記回転支持軸または支持長孔を形成した前側リンク又は/及び後側リンクに突設した案内突部と、
上記支持長孔または回転支持軸を形成した上記座部または固定部材に形成した、上記案内突部が移動可能に係合しかつ上記支持長孔内の一点を中心とする略円弧形状の孔であり、上記使用位置に位置するときに案内突部が位置する部分は案内突部と同幅で、使用位置より格納位置側に位置するときに案内突部が位置する部分は案内突部より広幅である案内孔と、
上記回転支持軸を支持長孔に沿って一方向に移動付勢する付勢手段と、
備えることを特徴とする格納式車両用シート。 - 請求の範囲1記載の格納式車両用シートにおいて、
上記前側リンクと後側リンクの少なくとも一方と上記座部との一方に上記案内突部を突設し、
他方に設けた上記案内孔の一部に、上記案内突部を突設した前側リンクまたは後側リンクが、上記格納位置から使用位置の範囲外でかつ該前側リンクまたは後側リンクの下端部が最下点より高い位置に位置するときに、該案内突部が係合することにより該前側リンクまたは後側リンクの位置を保持する仮止め用凹部を形成した格納式車両用シート。
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| Application Number | Priority Date | Filing Date | Title |
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| PCT/JP2008/073743 WO2010073372A1 (ja) | 2008-12-26 | 2008-12-26 | 格納式車両用シート |
| JP2010543706A JP5341914B2 (ja) | 2008-12-26 | 2008-12-26 | 格納式車両用シート |
| KR1020117005678A KR101247697B1 (ko) | 2008-12-26 | 2008-12-26 | 격납식 차량용 시트 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| US9902296B2 (en) * | 2016-05-25 | 2018-02-27 | Lear Corporation | Seatback drive system spring down, power up |
| US11904732B2 (en) | 2020-11-09 | 2024-02-20 | Ford Global Technologies, Llc | Vehicular system capable of adjusting a passenger compartment from a first arrangement to a child care arrangement |
| US12257932B2 (en) | 2020-11-09 | 2025-03-25 | Ford Global Technologies, Llc | Exterior imager utilized in adjusting a passenger compartment arrangement |
| US11772520B2 (en) | 2020-11-09 | 2023-10-03 | Ford Global Technologies, Llc | Remote notification and adjustment of a passenger compartment arrangement |
| US12077068B2 (en) | 2020-11-09 | 2024-09-03 | Ford Global Technologies, Llc | Authorization-based adjustment of passenger compartment arrangement |
| US11772517B2 (en) | 2020-11-09 | 2023-10-03 | Ford Global Technologies, Llc | Vehicular system capable of adjusting a passenger compartment from a child seat arrangement to a second arrangement |
| US11772519B2 (en) | 2020-11-09 | 2023-10-03 | Ford Global Technologies, Llc | Vehicular system capable of adjusting a passenger compartment from a first arrangement to a child seat arrangement |
| US11731535B2 (en) | 2020-11-09 | 2023-08-22 | Ford Global Technologies, Llc | Vehicular system capable of adjusting a passenger compartment from a child care arrangement to a second arrangement |
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- 2008-12-26 US US13/063,081 patent/US8408628B2/en active Active
- 2008-12-26 JP JP2010543706A patent/JP5341914B2/ja not_active Expired - Fee Related
- 2008-12-26 KR KR1020117005678A patent/KR101247697B1/ko not_active Expired - Fee Related
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| JP2020066344A (ja) * | 2018-10-25 | 2020-04-30 | テイ・エス テック株式会社 | シート収納構造 |
| JP7216272B2 (ja) | 2018-10-25 | 2023-02-01 | テイ・エス テック株式会社 | シート収納構造 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5341914B2 (ja) | 2013-11-13 |
| KR101247697B1 (ko) | 2013-03-26 |
| US8408628B2 (en) | 2013-04-02 |
| US20110163566A1 (en) | 2011-07-07 |
| KR20110042113A (ko) | 2011-04-22 |
| JPWO2010073372A1 (ja) | 2012-05-31 |
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