JP4548230B2 - Vehicle seat device - Google Patents

Description

  The present invention relates to a vehicular seat device including a seat cushion provided to be movable forward and a seat back provided to be able to fall substantially horizontally above the seat cushion.

  2. Description of the Related Art Conventionally, in a rear seat having a seat cushion and a seat back, the seat cushion is configured to be movable forward of the vehicle via a pair of links independently of the seat back. A vehicle seat device has been invented on the seat surface so that the seat back can be tilted forward substantially horizontally with a reclining shaft as a fulcrum (see Patent Document 1).

  In the prior art disclosed in Patent Document 1, there is a problem that the seat back cannot be moved forward to the lying position on the seat cushion unless the seat cushion is once moved to the moving position in front of the vehicle. When returning the seat cushion in the forward movement position and the seat back lying on the seat cushion to the normal use position, the two (the seat cushion and the seat back) do not work together, so each returns to the original position separately. It was necessary to let them.

Moreover, rather than what can remotely at a position spaced from the rear seat also any of the above-described seat cushion and the seat back, therefore, the seat cushion at a remote location away from the rear seat, such as a rear luggage compartment, the seat back occupant remote Although there is a request to operate, there is a problem that it does not satisfy such a request and is not easy to use.
JP 2004-359158 A

  Therefore, the present invention provides a seat cushion remote control mechanism that can be operated remotely and separated from the seat back so that only the seat cushion is moved forward independently of the seat back, thereby making the seat cushion independent of the seat back. In addition, the vehicle can be operated at a position away from the seat, and the operability in the vehicle interior is improved. In particular, only the seat cushion can be remotely operated according to the conditions in the vehicle interior, thereby improving the usability. An object of the present invention is to provide a vehicular seat device.

A vehicle seat device according to the present invention is a vehicle seat device including a seat cushion and a seat back, wherein the seat cushion is movably provided forward, and the seat back is substantially horizontally above the seat cushion. A seat cushion remote control mechanism that is provided so as to be able to fall down and can be remotely operated separately from the seat back so that only the seat cushion is moved forward independently of the seat back, and only the seat back is independent of the seat cushion A seat back remote control mechanism that can be remotely operated away from the seat back so as to fall forward, and a seat interlocking movement mechanism that can move in conjunction with the seat cushion and the seat back, The seat cushion remote control mechanism and the seat back remote control mechanism are Those having selectively interlocking control mechanism capable of performing a click and the interlocking of the seat cushion and breakaway.
The seat cushion and the seat back described above may be set to the seat cushion and the seat back of the rear seat.

  According to the above configuration, since the above-described seat cushion remote control mechanism is provided, the seat cushion can be operated at a position (separated position) separated from the seat independently of the seat back, and the seat operability in the vehicle interior is improved. In particular, since only the seat cushion can be remotely operated in accordance with the situation in the vehicle compartment or other vehicle interiors, usability can be improved.

In addition, since the seat back is provided with a seat back remote control mechanism that can be remotely operated apart from the seat back so that only the seat back is moved forward and independently from the seat cushion, the seat back is a seat cushion. It can be operated independently from the seat, improving the seat operability in the passenger compartment, especially the seat back only, or only the seat cushion, or both the seat back and the seat cushion. Since it can be remotely operated according to the situation in the passenger compartment, a plurality of seat arrangements can be secured and the usability is further improved.

Furthermore, since the seat interlocking movement mechanism that can move the seat cushion and the seat back in conjunction with each other is provided, the seat cushion and the seat back can be interlocked by the seat interlocking movement mechanism, and the operation is thereby performed. It is possible to improve the performance.

Moreover, the seat cushion remote control mechanism and the seat back remote control mechanism are provided with an interlock control mechanism capable of selectively performing interlock and non-interlock of the seat back and the seat cushion. The interlock control mechanism selects between interlocking and non-interlocking of the seat back and the seat cushion, thereby improving usability.

In one embodiment of the present invention, a luggage compartment is provided behind the seat back, the remote control mechanism includes an operation lever, and the operation lever is disposed on a side wall of the luggage compartment. is there.
According to the above configuration, the seat cushion or the seat back can be remotely arranged from the cargo compartment (rear cargo compartment) side behind the seat back using the above-described operation lever, thereby improving convenience. There kill in.

In one embodiment of the present invention, a seat cushion shaft that supports the seat cushion so as to be movable forward and a seat back shaft that supports the seat back so as to be able to fall down, and the seat interlocking movement mechanism has moved forward. When the seat cushion and the seatback that has fallen down are returned to the use position, mechanical power transmission means that shares the rotational force of each of the shafts is provided.
The mechanical power transmission means described above may be a chain (endless belt) and sprocket (rotating member), a timing belt (endless belt) and timing pulley (rotating member), or a toothed belt (endless belt) and gear (rotating member). ) May be set.

  According to the above configuration, the seat interlocking movement mechanism can be mechanically simple and lightweight without using an electric motor or the like, and the seat cushion and the seat back are interlocked to return to the use position. Therefore, operability and usability can be improved.

  According to the present invention, since the seat cushion remote control mechanism that can be remotely operated by being separated from the seat back so as to move only the seat cushion forward independently of the seat back is provided, the seat cushion is independent of the seat back. In addition, the vehicle can be operated at a position away from the seat, and the operability in the vehicle interior is improved. In particular, only the seat cushion can be remotely operated according to the conditions in the vehicle interior, thereby improving the usability. There is an effect that can.

The purpose of the seat cushion and seat back is to improve the seat operability in the passenger compartment, and in particular, to improve the usability by enabling remote control of only the seat cushion according to the conditions of the cargo compartment and other compartments. The seat cushion is provided so as to be movable forward, the seat back is provided so as to be able to fall substantially horizontally above the seat cushion, and only the seat cushion is independent of the seat back. A seat cushion remote control mechanism that can be remotely operated while being separated from the seat back so as to be moved forward, and remote from the seat back so that only the seat back is tilted forward independently of the seat cushion. Operable seat back remote control mechanism and the above seat cushion and seat back An interlocking control mechanism capable of selectively performing interlocking and non-interlocking of the seat back and the seat cushion. was realized by the configuration that obtain Bei the.

An embodiment of the present invention will be described in detail with reference to the drawings.
The drawings show a vehicle seat device. First, a vehicle body structure will be described with reference to FIGS.
A floor panel 1 that forms the floor (lower surface) of the passenger compartment is provided, and a kick that is one step higher than the floor panel 1 is provided at the rear part of the floor panel 1 through a kick-up part 2 that rises in a front-rear and rear-high state. An up-floor portion 3 is continuously provided, and a rear floor 4 (loading compartment floor) extending substantially horizontally toward the rear is connected to the rear portion of the kick-up floor portion 3, and the rear floor 4 is substantially centered in the vehicle width direction. A spare tire pan 5 is recessed in the part.

  Side sill 6 having a side sill closed section extending in the front-rear direction of the vehicle is joined and fixed to the left and right side portions of floor panel 1 described above, which includes a side sill inner, a side sill outer, and a side sill reinforcement.

  Further, a rear side frame 7 extending in the front-rear direction of the vehicle is provided from the lower surfaces of the left and right sides of the rear floor 4 to the lower surfaces of the left and right sides of the kick-up unit 2, and between the rear floor 4 and the rear side frame 7 described above, An extended closed section is formed.

  Further, a fuel tank 8 serving as a large vehicle accessory is disposed in the vehicle outer space (lower space) of the kick-up portion 2 and the kick-up floor portion 3 described above, while the rear portion of the fuel tank 8 and a spare tire are disposed. Corresponding to the front part of the pan 5, a rear cross member 9 for connecting the left and right rear side frames 7, 7 is arranged on the lower surface of the kick-up floor part 3 in the vehicle width direction so as to kick up. A closed cross section 10 extending in the vehicle width direction is formed between the floor portion 3 and the rear cross member 9.

  Here, the side sill 6, the rear side frame 7, and the rear cross member 9 described above are vehicle body rigid members (strength members). In the figure, 11 is a front door opening, 12 is a rear door opening, and 13 is a center pillar.

Next, the sheet structure will be described with reference to FIGS.
On the upper part of the floor panel 1, a front seat 17 (a separate front seat having a driver's seat and a passenger's seat) including a seat cushion 14, a seat back 15, and a headrest 16 is disposed. A rear seat 21 (rear seat) having a seat cushion 18, a seat back 19, and a headrest 20 is disposed on the kick-up floor 3. In this embodiment, the rear seat 21 is configured as a bench seat type, and a recess 18 a is formed in the lower portion of the seat cushion 18.

  The lower end of the front portion of the seat cushion 18 in the above-described rear seat 21 is rotatably supported by the upper end portions (free end portions) of a pair of links 22 (only one is shown in the drawing). 2 and 3 are provided so as to be movable forward via a link 22 from the normal seating use position shown in FIG. 1, and the seat cushion 18 is independent of the seat back 19. It is configured to move to the front position shown in FIGS.

  The seat back 19 in the above-described rear seat 21 is configured to be rotatable about a seat back shaft 23 provided at a lower portion thereof. As shown in FIGS. 3 and 4, the seat back 19 is independent of the seat cushion 18. The cushion 18 is provided so as to be able to fall substantially horizontally above the seat surface.

  As shown in FIG. 1, on the rear side of the seat back 19 of the above-mentioned rear seat 21, the load surrounded by the seat back 19, the roof portion 24, the rear floor 4 forming the cargo compartment floor, and the rear gate 25 is provided. A chamber 26 is provided.

  As shown in FIG. 2 from the normal state shown in FIG. 1, when only the seat cushion 18 is moved to the front position independently of the seat back 19 and the seat back 19 is held in an upright state, the seat of the front seat 17 is One load compartment 27 serving as a luggage storage space surrounded by the back 15, the seat cushion 18 and the seat back 19 of the rear seat 21, and the roof portion 24, the seat back 19 of the rear seat 21, the rear floor 4, and the rear gate 25. And two load chambers 27, 26 with the other one of the load chambers 26 surrounded by the roof portion 24 can be formed.

On the other hand, as shown in FIG. 4 from the normal state shown in FIG. 1, when only the seat back 1 9 independently of the seat cushion 18 is laid down moved to the seating surface upper portion of the seat cushion 18, the seat of the front seat 17 A cargo space expansion space 28 surrounded by the back 15, the seat back 19 of the rear seat 21, the rear floor 4, the rear gate 25, and the roof portion 24 is formed.

  Further, as shown in FIG. 3 from the state shown in FIG. 2, when the seat back 19 is tilted forward with the seat back shaft 23 as a fulcrum on the seat seat upper portion of the seat cushion 18 moved to the front position, FIG. A single cargo space expansion space 29 is formed in which the two cargo spaces 26 and 27 shown in FIG.

  The cargo space expansion space 29 shown in FIG. 3 is wider than the cargo space expansion space 28 of FIG. 4 because the seat cushion 18 is moved forward and downward.

Next, a specific structure of the vehicle seat device will be described in detail with reference to FIGS.
5 is an enlarged view of the main part of FIG. 1, FIG. 6 is an enlarged view of the main part of FIG. 2, FIG. 7 is an enlarged view of the main part of FIG. A pair of left and right brackets 30 (only one is shown in the drawing) is provided outside the front portion of the seat cushion 18 in the vehicle width direction, and the seat cushion extends in the vehicle width direction between the pair of left and right brackets 30, 30. The shaft 31 is horizontally mounted so as to be rotatable.

  The seat cushion shaft 31 is a shaft that supports the seat cushion 18 via a pair of links 22 so that the seat cushion 18 can move forward (reciprocate).

  Further, a pair of left and right brackets 32 (only one is shown in the drawing) is provided outside the rear portion of the seat back 19 of the rear seat 21 in the vehicle width direction. A seatback shaft 23 extending in the direction is horizontally supported.

The seat back shaft 23 is a shaft that supports the seat back 19 so that the seat back 19 can fall down (can be undulated).
The seat cushion shaft 31 and the seat back shaft 23 are provided with sprockets 33 and 34, respectively, and a chain 35 as an endless belt is stretched between the front and rear sprockets 33 and 34. Chain guides 36 and 36 are opposed to a part of the chain 35, while these drive members (see the sprockets 33 and 34 and the chain 35) are surrounded by a chain cover 37 so as to ensure safety.

  Here, a part of the above-described chain cover 37 is disposed along the recess 3 a for disposing the chain cover formed on the outer side in the vehicle width direction of the kick-up floor portion 3. The projecting amount is reduced and the capacity of the fuel tank 8 is prevented from being reduced. Further, the sprockets 33 and 34 and the chain 35 are arranged so that when the seat cushion 18 moved forward shown in FIG. 3 and the seat back 19 lying down are returned to the use positions shown in FIG. It is a mechanical power transmission means sharing the rotational force.

  9 is a cross-sectional view of an essential part taken along line AA in FIG. 5, FIGS. 10 and 11 are explanatory views of the operation, FIG. 12 is a cross-sectional view taken along the line CC in FIG. 9, and FIG. FIG. 6 is a cross-sectional view taken along line D-D, and the above-described sprocket 33 is attached to a predetermined portion of the seat cushion shaft 31 via a one-way clutch 100 (see FIG. 21). A ratchet wheel 41 is fitted using a key 40. The above-described one-way clutch 100 transmits the driving force to the seat cushion shaft 31 only when the sprocket 33 is on the driving side, the seat cushion shaft 31 is on the driven side, and the sprocket 33 rotates in the clockwise direction in FIG. Therefore, when the sprocket 33 rotates counterclockwise in FIG. 5, no driving force is transmitted to the seat cushion shaft 31, and when the seat cushion shaft 31 is on the driving side, the seat cushion shaft 31 is allowed to idle. To do. A specific structure of the one-way clutch 100 will be described later.

  A lock pawl 44 as a claw member provided with a pinion 43 is attached to the shaft 42 integrally fixed to the sprocket 33 described above, and the lock pawl 44 is attached to the teeth of the ratchet wheel 41 by a biasing means such as a spring (not shown). When the ratchet wheel 41 rotates counterclockwise in the state shown in FIG. 12, the lock pawl resists the urging force of the urging means by the teeth of the ratchet wheel 41. When the ratchet wheel 41 rotates in the clockwise direction in FIG. 12 while allowing the ratchet wheel 41 to rotate in the same direction by sequentially raising the 44, the lock pawl 44 is driven by the urging force of the urging means. Are engaged with the teeth of the ratchet wheel 41, and the ratchet wheel 41 and the sprocket 33 are integrated together. Constitute a ratchet mechanism 45 for rotating the direction. The ratchet mechanism 45 is an interlock control mechanism that can selectively perform interlocking and non-interlocking of the seat back 19 and the seat cushion 18 via the sprockets 33 and 34 and the chain 35.

  On the other hand, a cylindrical guide member 46 extending to a position near the pinion 43 is fixed to the bracket 30 described above. A flange 48 is fixed to the seat cushion shaft 31 in the vicinity of the ratchet wheel 41 using a fixing member such as a fixing pin 47. An urging member such as a torsion spring 49 that urges the seat cushion 18 to the forward position (see FIGS. 6 and 7) is attached between the flange 48 and the guide member 46 described above.

  The above-described flange 48 is formed with a lock hole 50 for locking the flange 48 and the seat cushion 18 to the normal seating use state of the seat cushion 18 (see FIG. 5) against the urging force of the torsion spring 49. The flange 48 is fixed by the lock pin 51 engaged with the lock hole 50, and the seat cushion 18 is held in the use position.

  The lock hole 50 and the lock pin 51 described above constitute a lock mechanism that locks the seat cushion 18 in the use position, and the lock pin 51 includes a wire 53 that constitutes a seat cushion remote control mechanism 52 (see FIGS. 1 to 4). (Details are inner wire).

  The seat cushion remote control mechanism 52 is configured to be remotely operated away from the seat back 19 so that only the seat cushion 18 is moved forward independently of the seat back 19.

  That is, the seat cushion remote operation mechanism 52 includes an operation lever 54 at the operation base end portion of the wire 53. As shown in FIGS. 14 and 15, the operation lever 54 described above is a cargo compartment side wall 55 such as a trim member. It is arranged.

14, a recess 55a recessed in the outside in the vehicle width direction in the above-mentioned cargo compartment side walls 55 as shown in FIG. 15, distribution of the operating lever 54 of the wire 53 ends in the luggage compartment 26 side of the recess 55a It is set.

  A bracket 57 having a tube holder 56 is fixed to the vehicle exterior side surface of the above-described cargo compartment side wall 55, and the outer tube 58 is held by the tube holder 56, and the operation of the wire 53 movable in the outer tube 58 is performed. The operation lever 54 described above is attached to the base end.

Further , a spring retainer 59 is engaged and fixed to the wire 53, and a spring 60 as a biasing means is stretched between the spring retainer 59 and the front wall of the recess 55a so that the lock pin 51 at the tip of the wire 53 is secured. As shown in FIG. 9, the spring is biased to engage with the lock hole 50. Therefore, when the lock pin 51 is removed from the lock hole 50 through the wire 53 by remote operation of the operation lever 54, the seat cushion 18 is moved forward from the use position shown in FIG. 5 by the urging force of the torsion spring 49. Move to position.

  By the way, as shown in FIGS. 9-13, the ring gear 62 which has the internal tooth 61 is attached to the outer peripheral part of the cylindrical guide member 46 mentioned above so that a movement is possible. Between the ring gear 62 and the bracket 30, a return spring 63 (biasing means) such as a torsion spring for biasing the ring gear 62 to the original position shown in FIGS. 9, 10, and 12 is attached.

  An operation lever 64 is attached to the boss portion 62 a of the ring gear 62 described above, and the operation lever 64 is led out from the opening 37 a of the chain cover 37 to the vehicle interior side.

  The ring gear 62 described above unlocks the ratchet wheel 41 by the lock pawl 44 when only the seat cushion 18 is moved forward and then only the seat cushion 18 is returned to the normal normal seating use position. This prevents the sprockets 33 and 34 from interlocking with each other.

  Here, when the lock of the ratchet wheel 41 is released by the operation of the ring gear 62 described above, the ring gear 62 is moved from the state shown in FIG. 10 in the direction of arrow a in FIG. After the teeth 61 are engaged with the pinion 43, when the ring gear 62 is rotated in the direction of the arrow b in FIG. 13 via the operation lever 64, the pinion 43 is rotated in the direction of the arrow c in FIG. The lock pawl 44 formed integrally or integrally with the pinion 43 is disengaged from the tooth portion of the ratchet wheel 41 as indicated by an arrow d in the figure, and the lock of the ratchet wheel 41 by the lock pawl 44 is released.

  Thus, when the lock of the ratchet wheel 41 by the lock pawl 44 is released, only the seat cushion 18 is moved forward from the state where only the seat cushion 18 is moved to the normal use position by the occupant's manual operation. When returning, since an excessive force is not applied to the seat back 19, only the seat cushion 18 can be smoothly returned to the use position.

  As shown in FIGS. 9, 10, and 11, the base end portion 22 a of the link 22 is formed in a cylindrical shape and attached to the seat cushion shaft 31, and then the seat cushion shaft is fixed by a fixing member such as a fixing pin 65. 31 is fixed.

  The free end 22b of the link 22 is connected to a pin 67 so as to be rotatable with respect to the seat cushion frame 66 in the seat cushion 18. 9 to 11, reference numerals 68 and 69 denote locking rings such as an E ring or a C ring.

  Here, a specific structure of the one-way clutch 100 interposed between the seat cushion shaft 31 and the sprocket 33 will be described with reference to FIG. 21. The one-way clutch 100 is provided on the outer ring 101 and the outer ring 101. A recess 102, a roller 103 (or a ball) fitted in the recess 102, a spring 104 that presses the roller 103, and an inner ring 105 that holds the roller 103 are provided.

  The concave portion 102 is formed in a shape in which the depth of the concave groove is expanded toward the spring 104 side, and when the outer ring 101 is rotated in the direction of the solid arrow x in FIG. Rotation of the outer ring 101 is transmitted to the inner ring 105 by being pressed by the wedge action between the narrow portions of 102.

  When the outer ring 101 rotates in the direction of the dotted line arrow y opposite to the above, the roller 103 does not contact any of the inner and outer rings 105, 101, and the inner ring 105 rotates idly with respect to the outer ring 101.

  The above-described sprocket 33 is fitted to the outer peripheral portion of the outer ring 101 of the one-way clutch 100, and the above-described seat cushion shaft 31 is fitted to the inner peripheral portion of the inner ring 105. The inner ring 105 may also be used as the seat cushion shaft 31.

  9 to 13 and 21 are structures on the seat cushion 18 side. Next, the configuration on the seat back 19 side will be described with reference to FIGS.

  16 is a cross-sectional view of an essential part taken along line BB in FIG. 5, FIGS. 17 and 18 are explanatory views of the operation, FIG. 19 is a cross-sectional view taken along the line EE in FIG. FIG. 4 is a cross-sectional view taken along line GG, and a ratchet wheel 71 is fitted to the seatback shaft 23 using a key 70 in the vicinity of the sprocket 34 loosely fitted to the seatback shaft 23.

  A lock pawl 74 as a claw member having a pinion 73 is attached to the shaft 72 integrally fixed to the sprocket 34 described above, and the lock pawl 74 is attached to the teeth of the ratchet wheel 71 by a biasing means such as a spring (not shown). When the ratchet wheel 71 rotates counterclockwise in the state shown in FIG. 19, the lock pawl resists the urging force of the urging means by the teeth of the ratchet wheel 71. When the ratchet wheel 71 rotates in the clockwise direction in FIG. 19 while allowing the ratchet wheel 71 to rotate in the same direction by sequentially raising the 74, the lock pawl 74 is driven by the urging force of the urging means. Is engaged with the teeth of the ratchet wheel 71, and the ratchet wheel 71 and the sprocket 34 are integrated together. Constitute a ratchet mechanism 75 for rotating the direction. The ratchet mechanism 75 is an interlock control mechanism capable of selectively performing interlocking and non-interlocking of the seat back 19 and the seat cushion 18 via the sprockets 33 and 34 and the chain 35.

  On the other hand, a cylindrical guide member 76 extending to a position near the pinion 73 is fixed to the bracket 32 described above. Further, in the vicinity of the ratchet wheel 71, a flange 78 is fixed to the seatback shaft 23 using a fixing member such as a fixing pin 77. An urging member such as a torsion spring 79 that urges the seat back 19 to the lying down position (see FIGS. 7 and 8) is attached between the flange 78 and the guide member 76 described above.

  The above-described flange 78 is formed with a lock hole 80 for locking the flange 78 and the seat back 19 in a normal seating use state (see FIG. 5) against the urging force of the torsion spring 79. The flange 78 is fixed by the lock pin 81 engaged with the lock hole 80, and the seat back 19 is held in the use position.

  The lock hole 80 and the lock pin 81 described above constitute a lock mechanism that locks the seat back 19 in the use position shown in FIGS. 1 and 5. The lock pin 81 includes a seat back remote control mechanism 82 (FIGS. 4 (see Fig. 4) is attached.

  The seat back remote operation mechanism 82 is configured to be remotely operated away from the seat back 19 so that only the seat back 19 is moved forward and fallen independently of the seat cushion 18.

  That is, the seat back remote operation mechanism 82 includes an operation lever 84 at the operation base end portion of the wire 83. As shown in FIG. 15, the operation lever 84 described above is disposed on the cargo compartment side wall 55 such as a trim member. Has been.

As shown in FIGS. 14 and 15, a concave portion 55 a that is recessed outward in the vehicle width direction is formed in the above-described cargo compartment side wall 55, and an operation lever 84 at the end of the wire 83 is provided on the cargo compartment 26 side of the concave portion 55 a. It is arranged.

  As shown in FIG. 15, a bracket 57 having a tube holder 86 is fixed to the surface of the cargo compartment side wall 55 described above, and the outer tube 88 is held by the tube holder 86 and moved in the outer tube 88. The aforementioned operation lever 84 is attached to the operation base end portion of the possible wire 83.

  Further, a spring retainer 89 is engaged and fixed to the wire 83, and a spring 90 as a biasing means is stretched between the spring retainer 89 and the front wall of the recess 55a. As shown in FIG. 16, the spring is biased to engage with the lock hole 80. For this reason, when the lock pin 81 is removed from the lock hole 80 through the wire 83 by remote operation of the operation lever 84, the seat back 19 is moved by the urging force of the torsion spring 79 from the standing position shown in FIGS. 8. Move to the forward position shown in FIG.

  By the way, as shown in FIGS. 16-20, the ring gear 92 which has the internal tooth 91 is attached to the outer peripheral part of the above-mentioned cylindrical guide member 76 so that movement is possible. Between the ring gear 92 and the bracket 32, a return spring 93 (biasing means) such as a torsion spring for biasing the ring gear 92 to the original position shown in FIGS. 16, 17, and 19 is attached.

  An operation lever 94 is attached to the boss portion 92 a of the ring gear 92 described above, and the operation lever 94 is led out from the opening portion 37 b of the chain cover 37 to the vehicle interior side.

  The ring gear 92 described above releases the lock of the ratchet wheel 71 by the lock pawl 74 when only the seat back 19 is moved forward and then only the seat back 19 is returned to the normal normal seating use position. This is to prevent the sprockets 33 and 34 from being interlocked by the chain 35.

  Here, when the ratchet wheel 71 is unlocked by the operation of the ring gear 92 described above, the ring gear 92 is moved from the state shown in FIG. After the teeth 91 are engaged with the pinion 73, when the ring gear 92 is rotated in the direction of the arrow f in FIG. 20 via the operation lever 94, the pinion 73 is rotated in the direction of the arrow g in FIG. The lock pawl 74 formed integrally or integrally with the pinion 73 is disengaged from the tooth portion of the ratchet wheel 71 as indicated by an arrow h in the figure, and the lock of the ratchet wheel 71 by the lock pawl 74 is released.

  Thus, when the lock of the ratchet wheel 71 by the lock pawl 74 is released, only the seat back 19 is normally used as shown in FIG. 1 and FIG. When returning to the position by manual operation of the occupant, no excessive force is applied to the seat cushion 18, so that only the seat back 19 can be smoothly returned to the use position.

As shown in FIGS. 16, 17, and 18, the seat back frame 96 in the seat back 19 is fixed to the above-described seat back shaft 23 by welding means or the like. 16 to 18, reference numerals 98 and 99 denote locking rings such as an E ring or a C ring. In the figure, arrow F indicates the front of the vehicle, arrow R indicates the rear of the vehicle, arrow IN indicates the inside of the vehicle, and arrow OUT indicates the outside of the vehicle.

The operation of the thus configured vehicle seat device will be described below.
In the rear seat 21 in the normal seating and use state shown in FIGS. 1 and 5, only the seat cushion 18 is moved forward from the state shown in FIG. 1 independently of the seat back 19 to secure the state shown in FIGS. In this case, the wire 53 is first pulled using the operation lever 54 of the seat cushion remote operation mechanism 52 disposed on the cargo compartment side wall 55.

  When the wire 53 is pulled, the lock pin 51 at the lock position shown in FIG. 9 is released from the lock hole 50 as shown in FIG. 10 and is unlocked, so that the flange 48 is biased by the urging force of the torsion spring 49. The ratchet wheel 41 and the seat cushion shaft 31 are integrally rotated in a direction in which the seat cushion 18 is moved forward, and the seat cushion 18 is shown in FIGS. 2 and 6 via a link 22 fixed to the seat cushion shaft 31. Move to the forward position. In this case, the ratchet wheel 41 rotates counterclockwise in FIG. 12, but the ratchet wheel 41 rotates while jumping up the lock pawl 44, and the seat cushion shaft 31 idles with respect to the sprocket 33. , 34 and the chain 35 are not driven, and only the seat cushion 18 can be moved forward independently of the seat back 19.

Meanwhile, FIG. 1, a normal seating use state or 2 shown in FIG. 5, from a state where only the seat cushion 18 shown in FIG. 6 has been moved forward, only the seat back 19 forwardly independently of the sea Toku cushion 18 laid down 4 and 8 or the state shown in FIGS. 3 and 7 is secured, the wire 83 is first used by using the operation lever 84 of the seat back remote control mechanism 82 disposed on the cargo compartment side wall 55. Pull the operation.

  When the wire 83 is pulled, the lock pin 81 in the locked position shown in FIG. 16 is released from the lock hole 80 as shown in FIG. 17 and is unlocked, so that the flange 78 is applied by the biasing force of the torsion spring 79. The ratchet wheel 71 and the seat back shaft 23 are integrally rotated in a direction in which the seat back 19 is moved forward and the seat back 19 is fixed to the seat back shaft 23 through the seat back frame 96 shown in FIGS. 8 or move to the forward lying position shown in FIGS. In this case, the ratchet wheel 71 rotates counterclockwise in FIG. 19, but the ratchet wheel 71 rotates while jumping up the lock pawl 74, so that the sprockets 33 and 34 and the chain 35 are not driven, and the seat Only the back 19 can be moved forward and independently of the seat cushion 18.

  Further, the state shown in FIGS. 3 and 7, that is, the seat cushion 18 that has moved forward and the seat back 19 that has fallen and moved substantially horizontally on the seating surface of the seat cushion 18 are caused, as shown in FIGS. 5, the seat cushion remote control mechanism 52 and the seat back remote control mechanism 82 are not operated at all, and the occupant's manual operation does not cause the lying position shown in FIGS. When the seat back 19 is raised, the lock pawls 44 and 74 of the ratchet mechanisms 45 and 75 shown in FIGS. 12 and 19 are normally engaged with the teeth of the ratchet wheels 41 and 71, so that the force of the seat back 19 is increased. Seat back frame 96, seat back shaft 23, key 70, ratchet wheel 71, lock pawl 74, shaft 72, sprocket 34, the chain 35, the sprocket 33, and the one-way clutch 100 are transmitted to the seat cushion shaft 31, so that the force of the seat back 19 is transmitted to the seat cushion 18 through the above-described elements, and the seat back 19 and the seat The cushion 18 can be interlocked and returned to the normal use position (see FIGS. 1 and 5). At the time of the return, the lock pins 51, 81 automatically engages with the lock holes 50 and 80 to hold the use positions of the seat cushion 18 and the seat back 19.

Since the one-way clutch 100 shown in FIG. 21 is interposed between the seat cushion shaft 31 and the sprocket 33 on the seat cushion 18 side, the elements 40 to 45 and 61 to 64 on the same side are omitted. Is also possible.

As described above, the vehicle seat device according to the above-described embodiment is a vehicle seat device including the seat cushion 18 and the seat back 19, and the seat cushion 18 is provided movably forward. The seat cushion is provided so as to be able to fall substantially horizontally above the seat cushion 18, and can be remotely operated separately from the seat back 19 so that only the seat cushion 18 is moved forward independently of the seat back 19. An operation mechanism 52 is provided.
According to this configuration, since the seat cushion remote control mechanism 52 described above is provided, the seat cushion 18 can be operated at a position (separated position) separated from the rear seat 21 independently of the seat back 19. The seat operability is improved, and in particular, only the seat cushion 18 can be remotely operated in accordance with the state of the vehicle-mounted luggage or other vehicle interiors, so that the usability can be improved.

In addition, a seat back remote control mechanism 82 that can be remotely operated apart from the seat back 19 is provided so that only the seat back 19 is moved forward and down independently of the seat cushion 18.
According to this configuration, the seat back 19 can be operated at a position separated from the rear seat 21 independently of the seat cushion 18, and the seat operability in the passenger compartment is improved. In particular , only the seat back 19 or Since only the seat cushion 18 or both the seat back 19 and the seat cushion 18 can be remotely operated according to the conditions in the passenger compartment, a plurality of seat arrangements can be ensured and the usability is further improved.

Further, a luggage compartment 26 is provided behind the seat back 19, and the remote operation mechanisms 52, 82 are provided with operation levers 54, 84, and the operation levers 54, 84 are provided on the side wall 55 of the luggage compartment 26. It is arranged.
According to this configuration, the seat cushion 18 or the seat back 19 can be remotely arranged using the operation levers 54 and 84 from the luggage compartment 26 (rear cargo compartment) side behind the seat back 19. Convenience can be improved.

In addition, a seat interlocking movement mechanism (see the sprockets 33 and 34 and the chain 35) that can move the seat cushion 18 and the seat back 19 in an interlocking manner is provided.
According to this configuration, since the seat cushion 18 and the seat back 19 can be interlocked by the seat interlocking movement mechanism (see the sprockets 33 and 34 and the chain 35), the operability can be improved.

Further, the seat cushion remote control mechanism 52 and the seat back remote control mechanism 82 are an interlock control mechanism (ratchet mechanism 45, which can selectively perform interlocking and non-interlocking of the seat back 19 and the seat cushion 18). 75, one-way clutch 100).
According to this configuration, since the interlock control mechanism selects whether the seat back 19 and the seat cushion 18 are interlocked or not interlocked, the usability can be improved.

Further, the seat cushion shaft 31 for supporting the seat cushion 18 so as to be movable forward and the seat back shaft 23 for supporting the seat back 19 so as to be able to fall down are provided, and the seat interlocking movement mechanism (sprockets 33, 34, chain 35) is provided. Reference) is a mechanical power transmission means (sprockets 33, 34, which shares the rotational force of the shafts 23, 31 when the seat cushion 18 moved forward and the seat back 19 lying down are returned to the use position. (See chain 35).
According to this configuration, the seat interlocking movement mechanism (see the sprockets 33 and 34 and the chain 35) can be mechanically simple and lightweight without using an electric motor, and the seat cushion 18 and the seat back. 19 can be interlocked and returned to the use position, so that operability and usability can be improved.

In the correspondence between the configuration of the present invention and the above-described embodiment,
The seat interlocking movement mechanism and the power transmission means of the present invention correspond to the sprockets 33 and 34 and the chain 35 of the embodiment,
Similarly,
The interlock control mechanism corresponds to the ratchet mechanisms 45 and 75 and the one-way clutch 100,
The present invention is not limited to the configuration of the above-described embodiment.

  For example, in the above embodiment, the seat device is applied to the bench seat type rear seat 21, but this may be adopted for a separate structure rear seat.

The side view which shows the vehicle seat apparatus of this invention Side view showing only the seat cushion moved forward Side view showing the seat back lying down on the seat cushion moved forward Side view showing the seat back lying on the seat cushion in the normal position 1 is an enlarged side view of the main part of FIG. 2 is an enlarged side view of the main part of FIG. 3 is an enlarged side view of the main part of FIG. 4 is an enlarged side view of the main part of FIG. AA sectional view taken along line AA in FIG. Sectional view when unlocked Sectional view showing unlocking operation of ratchet wheel CC sectional view taken on line CC in FIG. DD sectional view taken along line D-D in FIG. Plan view showing the arrangement structure of the remote control mechanism Explanatory drawing showing the remote control mechanism as seen from the luggage compartment side BB cross-sectional view of FIG. Sectional view when unlocked Sectional view showing unlocking operation of ratchet wheel EE arrow sectional view of FIG. GG arrow sectional view of FIG. Cross section of one-way clutch

18 ... Seat cushion 19 ... Seat back 23 ... Seat back shaft 26 ... Cargo compartment 31 ... Seat cushion shaft 33, 34 ... Sprocket (seat interlocking movement mechanism)
35 ... Chain (sheet interlocking movement mechanism)
45, 75 ... Ratchet mechanism (interlocking control mechanism)
52 ... Seat cushion remote operation mechanism 54, 84 ... Operation lever 55 ... Cargo compartment side wall 82 ... Seat back remote operation mechanism 100 ... One-way clutch (interlocking control mechanism)

Claims (3)

A vehicle seat device including a seat cushion and a seat back,
The seat cushion is provided movably forward,
The seat back is provided so as to be able to fall substantially horizontally above the seat cushion,
A seat cushion remote control mechanism that can be remotely operated apart from the seat back so as to move only the seat cushion forward independently of the seat back ;
A seat back remote control mechanism that can be remotely operated away from the seat back so that only the seat back is moved forward and fall independently of the seat cushion;
A seat interlocking movement mechanism capable of interlockingly moving the seat cushion and the seat back,
The seat cushion remote control mechanism and the seat back remote control mechanism include an interlock control mechanism capable of selectively performing interlocking and non-interlocking of the seat back and the seat cushion. <Br / > Vehicle seat device. The vehicle according to claim 1 , wherein a cargo compartment is provided behind the seat back, the remote control mechanism includes an operation lever, and the operation lever is disposed on a side wall of the cargo compartment . Sheet device. A seat cushion shaft that supports the seat cushion so as to be movable forward;
A seat back shaft that supports the seat back so as to fall down,
The seat interlocking movement mechanism includes mechanical power transmission means that shares the rotational force of each of the shafts when the seat cushion that has moved forward and the seatback that has laid down are returned to the use position. vehicle seat equipment according to any one of claim 1 or 2.

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