JP4513666B2 - 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. Since the seat cushion and the seat back do not interlock, the forward movement of the seat cushion and the downward movement of the seat back do not interlock, and of course the seat cushion moved forward and the seat lying on the seat cushion Even when the back is returned to the normal use position (normal position where the occupant can be seated), the occupant must manually return to the original position (use position).

  In order to improve the use variation in the passenger compartment, the mode (mode) in which the forward movement of the seat cushion and the lowering movement of the seat back are independent, the forward movement of the seat cushion, and the lowering of the seat back There are two types of modes (modes) in which movement is linked, but the prior art disclosed in Patent Document 1 does not satisfy such requirements and improves the use variation in the passenger compartment. However, there are problems that it is difficult to operate and that operability and usability are poor.

JP 2004-359158 A

  Therefore, the present invention operates in conjunction with the independent mode in which the forward movement of the seat cushion and the downward movement of the seat back can be operated independently, and the forward movement of the seat cushion and the downward movement of the seat back. Of a vehicle seat device capable of achieving both improvement in use variation in the vehicle interior and ensuring of operability and usability by selectively switching between both modes. For the purpose of provision.

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. An independent mode in which the seat cushion can be moved forward and the seat back can be moved independently, and the seat cushion can be moved forward and the seat back can be lowered. And a mode switching operation mechanism capable of selectively operating the independent mode and the interlocking mode.
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, when the independent mode is selected by the mode switching operation mechanism, the forward movement of the seat cushion and the lying down movement of the seat back can be performed independently, and the mode switching operation mechanism When the interlock mode is selected, the forward movement of the seat cushion and the downward movement of the seat back can be performed in conjunction with each other.

  Thus, by providing a mode that allows the seat cushion and the seat back to operate in conjunction with each other and a mode that allows each to be moved separately, the use variation in the passenger compartment is improved, and operability and usability are improved. It is possible to achieve compatibility with

  In one embodiment of the present invention, the seat cushion is in the use position and the use position in which the seat back stands up from the state where the seat cushion is in the forward position and the seat back is in the lying position where the seat back is lying on the seat cushion. At the time of returning to the above, at least the interlocking mode can be selectively used.

  According to the above configuration, when the seat cushion at the front position is returned to the normal use position, and the seat back at the lying position is caused to return to the standing use position, the seat back and the seat cushion are set by selecting the interlock mode. Since it returns to the respective use positions in conjunction with each other, it is not necessary to return the seat back and the seat cushion separately to the original positions (use positions) as in the prior art, and the usability can be greatly improved.

  In one embodiment of the present invention, the mode switching operation mechanism is set to a remote operation mechanism operable at a remote position separated from the seat back.

  According to the above configuration, since the mode switching operation mechanism is set to the remote operation mechanism, switching between the independent mode and the interlock mode can be performed at a remote position separated from the seat back, and the mode switching is performed according to the situation in the vehicle interior. Can be remotely controlled to improve usability.

  In one embodiment of the present invention, there is provided a seat cushion remote control mechanism that can be remotely operated apart from the seat back so that only the seat cushion is moved forward independently of the seat back when the independent mode is selected. It is provided.

  According to the above configuration, since the seat cushion remote control mechanism that is effective when the independent mode is selected is provided, the seat cushion can be operated at a position separated from the seat (separated position) independently from the seat back. The seat operability in the room is improved, and in particular, only the seat cushion can be remotely operated in accordance with the state of the vehicle interior and other vehicle interiors, so that the usability can be improved.

  In one embodiment of the present invention, when the independent mode is selected, 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 down independently of the seat cushion. It is equipped with.

  According to the above configuration, since the seat back remote control mechanism that is effective when the independent mode is selected is provided, the seat back can be operated at a position separated from the seat (separated position) independently of the seat cushion. The seat operability in the room is improved, and in particular, only the seat back can be remotely operated in accordance with the condition of the vehicle interior and other vehicle interiors, so that the usability can be improved.

  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 mode switching or the seat arrangement by the seat cushion and the seat back can be remotely operated from the cargo compartment (rear cargo compartment) side behind the seat back using the above-described operation lever. Can be improved.

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 that the seat back can fall down. It is provided with mechanical power transmission means sharing the rotational force of the motor.
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 power transmission means can be mechanically simple and lightweight without using an electric motor or the like, and when the interlock mode is selected, the seat cushion and the seat back are moved in conjunction with each other. In particular, since it can be returned to the use position, operability and usability can be improved.

  According to the present invention, the independent mode in which the forward movement of the seat cushion and the downward movement of the seat back can be operated independently, and the forward movement of the seat cushion and the downward movement of the seat back operate in conjunction with each other. Since it has a possible interlocking mode and is configured to selectively switch between these two modes, there is an effect that it is possible to achieve both improvement in use variation in the passenger compartment and ensuring of operability and usability. .

  In a vehicle seat device equipped with a seat cushion and a seat back, the seat cushion is movably provided forward to improve the use variation in the passenger compartment and to ensure both operability and usability. An independent mode that allows the seat cushion to move forward and the seat back to move independently while the back is provided approximately horizontally above the seat cushion, and the seat cushion forward and seat It has a mode that has an interlocking mode that can operate in conjunction with the overturning movement of the back, and a mode switching operation mechanism that can selectively operate the independent mode and the interlocking mode.

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 surface (lower surface) of the passenger compartment is provided, and the rear portion of the floor panel 1 is 1 higher than the floor panel 1 through a step-like kick-up portion 2 that rises in a front-rear and rear-high state. A step-up kick-up floor 3 is continuously provided, and a rear floor 4 (loading floor) extending substantially horizontally toward the rear is connected to the rear of the kick-up floor 3 and the vehicle width direction of the rear floor 4 A spare tire pan 5 is recessed in a substantially central portion of the.

  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 as a large vehicle auxiliary machine is disposed in the vehicle outer space (lower space) of the kick-up portion 2 and the kick-up floor portion 3 described above. Corresponding to the front part of the tire pan 5, a rear cross member 9 for connecting the left and right rear side frames 7, 7 in the vehicle width direction is provided on the lower surface of the kick-up floor part 3, and the above-described kick-up floor is provided. A closed cross section 10 extending in the vehicle width direction is formed between the 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 front seat with a front separate structure comprising a driver's seat and a passenger's seat) having a seat cushion 14, a seat back 15, and a headrest 16 is disposed. A rear seat 21 (rear seat) equipped with a seat cushion 18, a seat back 19, and a headrest 20 is disposed on the upper part of 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 recess 18a corresponds to the kick-up floor 3 and is configured to position the seat cushion 18 as low as possible when the seat cushion 18 is moved forward as shown in FIGS. belongs to.

  The lower end of the front portion of the seat cushion 18 in the rear seat 21 is rotatably supported by the upper end portion (free end portion) of a pair of left and right links 22 and 22 (only one is shown in the drawing) The seat cushion 18 is provided so as to be able to move forward from the normal seating use position (normal position) shown in FIG. 1 via the link 22 as shown in FIG. 2 and FIG. 3 is configured to move to the front position shown in FIGS. 2 and 3 independently of the seat back 19 or to move to the front position shown in FIG. 3 in conjunction with the seat back 19.

  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 includes the seat cushion 18. 3 or in conjunction with the seat cushion 18 as shown in FIG. 3, the seat cushion 18 is provided so as to be able to fall substantially horizontally above the seating 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 (that is, a rear luggage room) is provided.

  As shown in FIG. 2 from the normal state (normal use state) shown in FIG. 1, only the seat cushion 18 is moved to the front position (storage position) independently of the seat back 19, and the seat back 19 remains in the standing state. 1, the seat back 15 of the front seat 17, the seat cushion 18 and the seat back 19 of the rear seat 21, one luggage compartment 27 that is a luggage storage space surrounded by the roof portion 24, and the seat back of the rear seat 21. 19, the rear floor 4, the rear gate 25, and the other cargo room 26 surrounded by the roof portion 24, two cargo compartments 27 and 26 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 19 is moved down to the storage position above the seat cushion 18 independently of the seat cushion 18, A cargo space expansion space 28 surrounded by the seat 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 normal state shown in FIG. 1, the forward movement of the seat cushion 18 and the downward movement of the seat back 19 are moved to the front position independently or in conjunction with each other. When the seat back 19 is tilted to the front storage position with the seat back shaft 23 as a fulcrum on the seat cushion upper portion of the seat cushion 18, the two luggage compartments 26 and 27 shown in FIG. The cargo space expansion space 29 is formed.

  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. 3, and FIG. In the figure, a pair of left and right brackets 30, 30 (only one is shown in the drawing) are provided outside the front portion of the seat cushion 18 of the rear seat 21 in the vehicle width direction, and between the pair of left and right brackets 30, 30. Has a seat cushion shaft 31 extending in the vehicle width direction so as to be rotatable.

  The seat cushion shaft 31 is a shaft that supports the seat cushion 18 so as to be movable forward (reciprocally movable) via a pair of left and right links 22 and 22.

  Further, a pair of left and right brackets 32, 32 (only one is shown in the drawing) is provided on the outer side in the vehicle width direction of the lower portion of the seat back 19 of the rear seat 21, and between the pair of left and right brackets 32, 32 is provided. A seatback shaft 23 extending in the vehicle width direction is horizontally mounted to be rotatable.

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 above-mentioned seat cushion shaft 31 and seat back shaft 23 are provided with sprockets 33 and 34 movably in the axial directions of the shafts 31 and 23, respectively, and a chain 35 as an endless belt is provided between the front and rear sprockets 33 and 34. Is stretched. A part of the chain 35 is provided with chain guides 36 and 36, while these drive members (see the sprockets 33 and 34 and the chain 35) are surrounded by a cover member 37 such as a chain cover, and are configured to ensure safety. is doing.

  Here, a part of the above-described cover member 37 is disposed along the cover member disposition recess 3 a formed on the outer side in the vehicle width direction of the kick-up floor portion 3, and is disposed above the cover member 37. The projecting amount is reduced and the capacity of the fuel tank 8 is prevented from being reduced. The sprockets 33 and 34 and the chain 35 share the rotational force of the shafts 31 and 23 to link the seat cushion 18 and the seat back 19 when the interlock mode m2 (see FIG. 11) described later is selected. It is a mechanical power transmission that moves.

  9 is an enlarged plan view of the main part of FIG. 5, FIGS. 10 and 11 are explanatory diagrams of its operation, FIG. 12 is a cross-sectional view taken along the line AA in FIG. 10, and FIG. FIG. 3 is a cross-sectional view, and the seat cushion shaft 31 includes a main shaft portion 31a, a spline shaft portion 31b having a larger diameter than the main shaft portion 31a, and a stopper portion 31c having a larger diameter than the spline shaft portion 31b. Or it is provided integrally.

  A spline hole 40 is formed in the inner diameter portion of the sprocket 33 described above, and the spline hole 40 of the sprocket 33 disposed on the seat cushion shaft 31 includes a main shaft portion 31a (see FIG. 12) and a spline shaft portion 31b (see FIG. 13). It is configured to be able to move between.

  For this reason, a sleeve 41 having an annular groove structure is integrally formed on the sprocket 33 described above, while swinging about the support shaft 42 and the spline hole 40 of the sprocket 33 is formed in FIG. As shown in FIG. 13, a selector 43 is provided for loosely fitting the main shaft portion 31a, or for spline fitting the spline hole 40 to the spline shaft portion 31b as shown in FIG.

  The selector 43 is operated by a wire 44 (specifically, an inner wire), and the wire 44 is movably disposed in the outer tube 45.

  On the other hand, a flange 47 is fixed to a main shaft portion 31 a that is separated from the sprocket 33 in the seat cushion shaft 31 by using an attachment member such as a fixing bolt 46. Between the flange 47 (a member fixed to the shaft 31) and the bracket 30 (a member fixed to the body), the seat cushion 18 is always urged to the front position (see FIGS. 6 and 7). A biasing member such as a torsion spring 48 is attached.

  Further, the above-described flange 47 is provided with a lock hole 49 for locking the flange 47 and the seat cushion 18 to the normal seating use position (see FIG. 5) of the seat cushion 18 against the urging force of the torsion spring 48. (Refer to FIGS. 10 and 11), and the flange 47 is fixed by the lock pin 50 engaged with the lock hole 49, and the seat cushion 18 is held in the use position.

  Further, a coil spring 52 is disposed on the main shaft portion 31 a between the sprocket 33 and the flange 47 as a biasing means that is stretched between the pair of collars 51, 51. The coil spring 52 constantly urges the sprocket 33 in the direction shown in FIG. 11 (the direction in which the spline hole 40 is fitted to the spline shaft portion 31 b), and the collar 51 described above is sprocket 33 when the seat cushion shaft 31 rotates independently. To prevent them from rotating together. If necessary, the collar 51 on one side and the other side may have a double structure in which two on one side are arranged.

  By the way, the lock hole 49 and the lock pin 50 described above constitute a lock mechanism for locking the seat cushion 18 in the use position, and the lock pin 50 has a seat cushion remote operation mechanism 53 (FIG. 1 to FIG. 1) as a seat cushion operation mechanism. 4) is attached. Specifically, an inner wire is attached.

  The seat cushion remote control mechanism 53 moves away from the seat back 19 so that only the seat cushion 18 is moved forward independently of the seat back 19 when an independent mode m1 (see FIGS. 9 and 10) described later is selected. Remote control.

  That is, the seat cushion remote control mechanism 53 is provided with an operation lever 55 at the operation base end portion (the end portion on the rear side in this embodiment) of the wire 54, and the operation lever 55 is trimmed as shown in FIGS. It is arrange | positioned at the luggage compartment side walls 56, such as a member.

  As shown in FIGS. 14 and 15, a concave portion 57 that is recessed outward in the vehicle width direction is formed in the above-described cargo compartment side wall 56, and an operation lever 55 at the end of the wire 54 is arranged on the concave compartment 57 on the cargo compartment 26 side. Has been established.

  A bracket 59 having a tube holder 58 is fixed to the surface of the cargo compartment side wall 56 described above, and the outer tube 60 is held by the tube holder 58 and the wire 54 movable in the outer tube 60 is operated. The operation lever 55 described above is attached to the base end.

  Further, a spring retainer 61 is engaged and fixed to the wire 54, and a spring 62 as an urging means is stretched between the spring retainer 61 and the front wall 57 a of the recess 57, and the lock pin 50 at the tip of the wire 54 is secured. As shown in FIG. 9, the spring is biased to engage with the lock hole 49. Therefore, when the lock pin 50 is removed from the lock hole 49 via the wire 54 by remote operation of the operation lever 55, the seat cushion 18 is moved forward from the use position shown in FIG. 5 by the urging force of the torsion spring 48. Move to 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 is fitted and fixed to the seat cushion shaft 31. The free end 22b of the link 22 is rotatably connected to a pin 64 with respect to a seat cushion frame 63 in the seat cushion 18.

The above is the configuration on the seat cushion shaft 31 side. Next, the configuration on the seat back shaft 23 side will be described.
The seat back shaft 23 includes a main shaft portion 23a, a spline shaft portion 23b having a larger diameter than the main shaft portion 23a, and a stopper portion 23c having a larger diameter than the spline shaft portion 23b. It is.

  A spline hole 70 is formed in the inner diameter portion of the sprocket 34 described above, and the spline hole 70 of the sprocket 34 disposed in the seat back shaft 23 is configured to be movable between the main shaft portion 23a and the spline shaft portion 23b. ing.

  For this reason, the above-mentioned sprocket 34 is integrally formed with a sleeve 71 having an annular groove structure, while swinging about the support shaft 72, and the spline hole 70 of the sprocket 34 is connected to the main shaft portion 23a via the above-mentioned sleeve 71. A selector 73 is provided for loosely fitting the spline hole 70 to the spline shaft portion 23b.

  The selector 73 is operated by a wire 74 (specifically, an inner wire), and the wire 74 is movably disposed in the outer tube 75.

  On the other hand, a flange 77 is fixed to the main shaft portion 23 a that is separated from the sprocket 34 in the seat back shaft 23 by using an attachment member such as a fixing bolt 76. Between the flange 77 (a member fixed to the shaft 23) and the bracket 32 (a member fixed to the body), the seat back 19 is always urged to a lying position (see FIGS. 7 and 8). A biasing member such as a torsion spring 78 is attached.

  Further, the above-mentioned flange 77 has a lock hole 79 for locking the flange 77 and the seat back 19 to the normal seating use position (see FIG. 5) of the seat back 19 against the urging force of the torsion spring 78. (See FIGS. 10 and 11), and a flange 77 is fixed by a lock pin 80 engaged with the lock hole 79, and the seat back 19 is held in a use position.

  Further, a coil spring 82 is disposed on the main shaft portion 23 a between the sprocket 34 and the flange 77 as a biasing means that is stretched between the pair of collars 81, 81. The coil spring 82 always urges the sprocket 34 in the direction shown in FIG. 11 (the direction in which the spline hole 70 is fitted to the spline shaft portion 23 b), and the collar 81 described above is used when the seatback shaft 23 rotates independently. To prevent them from rotating together. If necessary, the collar 81 on one side and the other side may have a double structure in which two on one side are provided.

  By the way, the lock hole 79 and the lock pin 80 described above constitute a lock mechanism that locks the seat back 19 in the use position. The lock pin 80 includes a seat back remote operation mechanism 83 (see FIGS. 4 (see Fig. 4) is attached.

  The seat back remote control mechanism 83 is configured to cause only the seat back 19 to fall down forward independently of the seat cushion 18 when an independent mode m1 (see FIGS. 9 and 10) described later is selected. It is configured so that it can be operated remotely from the remote control.

  That is, the seat back remote control mechanism 83 is provided with an operation lever 85 at the operation base end portion (the end portion on the rear side in this embodiment) of the wire 84. The operation lever 85 is trimmed as shown in FIGS. It is arrange | positioned at the luggage compartment side walls 56, such as a member.

As shown in FIGS. 14 and 15, a concave portion 57 that is recessed outward in the vehicle width direction is formed in the above-described cargo compartment side wall 56, and an operation lever 85 at the end of the wire 84 is provided on the concave portion 57 on the cargo compartment 26 side. Has been established.

  A bracket 59 having a tube holder 86 is fixed to the vehicle exterior side surface of the cargo compartment side wall 56 described above, and the outer tube 87 is held by the tube holder 86 and the wire 84 movable within the outer tube 87 is operated. The operation lever 85 described above is attached to the base end.

  A spring retainer 88 is engaged and fixed to the wire 84, and a spring 89 as a biasing means is stretched between the spring retainer 88 and the front wall 57 a of the recess 57, and a lock pin 80 at the tip of the wire 84 is provided. As shown in FIG. 9, the spring is biased to engage with the lock hole 79. For this reason, when the lock pin 80 is removed from the lock hole 79 through the wire 84 by remote operation of the operation lever 85, the seat back 19 is moved from the use position shown in FIG. 5 by the biasing force of the torsion spring 78 in FIGS. Move to the forward lodging position shown in.

  As shown in FIGS. 9, 10, and 11, the seat back frame 65 in the seat back 19 is fixed to the above-described seat back shaft 23 by welding means or the like.

  By the way, the above-described wires 44 and 74 shown in FIG. 9 to FIG. 11 are each a mode switching remote control mechanism 90 (FIG. 1) capable of selectively operating the independent mode m1 (see FIGS. 9 and 10) and the interlocking mode m2. To FIG. 4, FIG. 14, and FIG. 15).

  As shown in FIGS. 9 and 10, the mode switching remote control mechanism 90 is configured such that the spline holes 40 and 70 of the sprockets 33 and 34 are simultaneously disposed in the main shaft portions 31 a and 23 a of the shafts 31 and 23. 18, the independent mode m1 capable of independently operating the forward movement of the seat back 19 and the falling movement of the seat back 19, and the spline holes 40, 70 of the sprockets 33, 34 as shown in FIG. The spline shaft portions 31b and 23b are simultaneously spline-fitted so that the forward movement of the seat cushion 18 and the downward movement of the seat back 19 can be operated in conjunction with each other via the chain 35. This is a mode switching operation mechanism for selecting alternatively.

  Moreover, the mode switching remote operation mechanism 90 is configured to remotely operate the two selectors 43 and 73 simultaneously via the wires 44 and 74 at a remote position separated from the seat back 19.

  That is, as shown in FIG. 15, the bracket 59 described above has tube holders 91, 92, and the outer tubes 45, 75 are fixed to the tube holders 91, 92, and the outer tubes 45, 75 are The wires 44 and 74 led out to the rear side are fastened and integrated by a clamp member 93.

  An operation lever 94 is attached to the rear end of each of the integrated wires 44 and 74 so as to be positioned in the recess 57 of the cargo compartment side wall 56. Further, a spring retainer 95 is engaged and fixed to each of the integrated wires 44 and 74, and a spring 96 as a biasing means is stretched between the spring retainer 95 and the front wall 57 a of the recess 57. The selectors 43 and 73 are connected to the interlock mode m2 side shown in FIG. 11 by the wires 44 and 74 (the spline holes 40 and 70 of the sprockets 33 and 34 are connected to the spline shaft portions 31b and 23b of the shafts 31 and 23 via the sleeves 41 and 71). The spring is urged in the direction in which it is fitted.

For this reason, when the operation lever 94 is remotely pulled, the sprockets 33 and 34 are moved from the interlock mode m2 position of FIG. 11 to the independent positions of FIGS. 9 and 10 via the integrated wires 44 and 74 and the selectors 43 and 73, respectively. The mode m1 position can be operated simultaneously.
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.
One of the independent mode m1 shown in FIGS. 9 and 10 or the interlocking mode m2 shown in FIG. 11 can be selected by the mode switching remote control mechanism 90 described above.

  First, the independent mode m1 will be described. When the operation lever 94 of the mode switching remote control mechanism 90 is pulled from the state shown in FIG. 15, the sprockets 33 and 34 are connected to the shafts 31 via the wires 44 and 74 and the selectors 43 and 73, respectively. , 23 can be simultaneously positioned on the main shaft portions 31a, 23a, and the seat cushion shaft 31 and the seat back shaft 23 are independently rotated without the sprockets 33, 34 (independent mode).

  Therefore, 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 independently of the seat back 19 from the state shown in FIG. 9, when the wire 54 is pulled using the operation lever 55 of the seat cushion remote control mechanism 53 disposed on the cargo compartment side wall 56, the lock pin 50 in the lock position shown in FIG. 9 is as shown in FIG. 10. The seat 47 is released from the lock hole 49 and is unlocked, and the biasing force of the torsion spring 48 causes the flange 47 and the seat cushion shaft 31 to rotate integrally in the direction in which the seat cushion 18 is moved forward. The seat cushion 18 moves to the front position shown in FIGS. 2 and 6 through the link 22 fixed to the shaft 31.

  In this case, since the spline fitting between the spline hole 40 and the spline shaft portion 31b is released, the sprockets 33, 34 and the chain 35 are not driven, and only the seat cushion 18 is defined as the seat back 19. It can be moved forward independently.

  On the other hand, from the normal seating use state shown in FIG. 1 and FIG. 5 or the state where only the seat cushion 18 shown in FIG. 2 and FIG. 4 and 8, or when securing the state of FIGS. 3 and 7, the wire 84 is pulled using the operation lever 85 of the seat back remote control mechanism 83 disposed on the luggage compartment side wall 56. Then, the lock pin 80 at the lock position shown in FIG. 9 is released from the lock hole 79 as shown in FIG. 10 and is unlocked, so that the flange 77 and the seat back shaft 23 are moved to the seat by the urging force of the torsion spring 78. The seat back 19 is rotated integrally in the direction in which the back 19 is tilted forward, and the seat back 19 is fixed to the seat back shaft 23 via the seat back frame 65 shown in FIGS. Figure 3, is moved to the collapsed position of the front shown in FIG.

  In this case, since the spline fitting between the spline hole 70 and the spline shaft portion 23b is released, the sprockets 33 and 34 and the chain 35 are not driven, and only the seat back 19 is defined as the seat cushion 18. Independently can be moved forward.

  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 substantially horizontally on the seating surface of the seat cushion 18 are shown in FIGS. 1 and 5. In the case of returning to the normal seating use position shown, when the seatback 19 in the lying position shown in FIGS. 3 and 7 is caused by manual operation of the occupant, the seatback 19 is moved to the normal use position (FIGS. 1 and 5). When the return is completed, the lock pin 80 is automatically engaged with the lock hole 79 via the wire 84 by the urging force of the spring 89, and the use position of the seat back 19 is maintained.

  Thereafter, when the seat cushion 18 is moved backward through the link 22 from the front position shown in FIGS. 3 and 7 by the occupant's manual operation around the seat cushion shaft 31, the seat cushion 18 is moved to the normal use position (FIG. 1). 5), and when the return is completed, the lock pin 50 is automatically engaged with the lock hole 49 through the wire 54 by the biasing force of the spring 62, and the use position of the seat cushion 18 is maintained. To do.

  Next, the interlock mode m2 will be described. When the operation lever 94 of the mode switching remote control mechanism 90 is returned to the state shown in FIG. 15, each sprocket is connected via the wires 44 and 74 and the selectors 43 and 73 as shown in FIG. The spline holes 40 and 70 of the shafts 33 and 34 can be spline-fitted with the spline shaft portions 31b and 23b of the shafts 31 and 23. The seat cushion shaft 31 and the seat back shaft 23 are connected via the sprockets 33 and 34 and the chain 35. Thus, a mode (interlocking mode) is used in which the rotational forces of the shafts 31 and 23 are shared.

  Therefore, when the lock pins 50 and 80 are removed from the lock holes 49 and 79 through the wires 54 and 84 from the normal seating and use state shown in FIGS. 1 and 5, the seat cushion 18 shaft is driven by the urging force of the torsion springs 48 and 78. The seat back shaft 23 is rotated simultaneously to move the seat cushion 18 forward as shown in FIGS. 3 and 7, and in conjunction with this, the seat back 19 is moved down on the seating surface of the seat cushion 18. be able to.

  As shown in FIGS. 3 and 7, the seat cushion 18 is in the forward position (storage position), and the seat back 19 is in the lying position (storage position) lying on the seat cushion 18, as shown in FIG. 5, when the seat cushion 18 is returned to the use position where the seat cushion 18 is in the use position and the seat back 19 is raised, if the seat back 19 is caused by manual operation of the occupant under the condition of the interlock mode m2, The rotational force of the back shaft 23 is mechanically transmitted to the seat cushion shaft 31 via the spline shaft portion 23b, spline hole 70, sprocket 34, chain 35, sprocket 33, spline hole 40, and spline shaft portion 31b. The seat back shaft 23 and the seat cushion shaft 31 share these rotational forces and rotate simultaneously, 1. As shown in FIG. 5, the seat back 19 and the seat cushion 18 can be interlocked to return to the original use position, and when the recovery of both 19 and 18 is completed, each lock pin 80 is driven by the spring force of the springs 89 and 62. , 50 are automatically engaged in the corresponding lock holes 79, 49 to hold the use positions of the seat back 19 and the seat cushion 18, respectively.

  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. Is provided so as to be able to fall substantially horizontally above the seat cushion 18, while the independent mode m1 (FIG. 9, FIG. 9) is operable independently of the forward movement of the seat cushion 18 and the fall movement of the seat back 19. 10), and an interlocking mode m2 (see FIG. 11) capable of operating in conjunction with the forward movement of the seat cushion 18 and the overturning movement of the seat back 19, and the independent mode m1 and the interlocking mode. A mode switching operation mechanism (see mode switching remote operation mechanism 90) capable of selectively operating m2 is provided.

  According to this configuration, when the independent mode m1 (see FIGS. 9 and 10) is selected by the mode switching operation mechanism 90, the forward movement of the seat cushion 18 and the falling movement of the seat back 19 are made independent. When the interlock mode m2 (see FIG. 11) is selected by the mode switching operation mechanism 90, the forward movement of the seat cushion 18 and the downward movement of the seat back 19 are interlocked. Can be done.

  Thus, by providing the mode m2 that enables the seat cushion 18 and the seat back 19 to operate in conjunction with each other, and the mode m1 that can move each separately, the use variation in the passenger compartment is improved, It is possible to achieve both operability and usability.

  Further, from the state where the seat cushion 18 is in the forward position and the seat back 19 is in the lying down position on the seat cushion 18 (see FIG. 7), the seat cushion 18 is in the use position and the seat back 19 is raised. At the time of returning to the use position (see FIG. 5), at least the interlock mode m2 (see FIG. 11) can be selectively used.

  According to this configuration, when the seat cushion 18 at the front position is returned to the normal use position, and when the seat cushion 19 at the fall position is caused to return to the standing use position, the seat back 19 and the seat back 19 can be selected by selecting the interlock mode m2. Since the seat cushion 18 is interlocked and returned to the respective use positions, it is not necessary to return the seat back and the seat cushion separately to the original positions (use positions) as in the prior art, and the user-friendliness is greatly improved. be able to.

  Further, the mode switching operation mechanism 90 is set as a remote operation mechanism that can be operated at a remote position away from the seat back 19.

  According to this configuration, since the mode switching operation mechanism 90 is set as a remote operation mechanism, the switching between the independent mode m1 and the interlocking mode m2 can be performed at a remote position away from the seat back 19, and the situation in the passenger compartment can be changed. Accordingly, the mode switching can be remotely operated, and the usability can be improved.

  In addition, there is provided a seat cushion remote control mechanism 53 that can 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 when the independent mode m1 is selected. It is a thing.

  According to this configuration, since the seat cushion remote operation mechanism 53 that is effective when the independent mode m1 is selected is provided, the seat cushion 18 is operated at a position (separated position) separated from the rear seat 21 independently of the seat back 19. In addition, the seat operability in the vehicle interior is improved, and in particular, only the seat cushion 18 can be remotely operated according to the on-board luggage and other conditions in the vehicle interior, so that the usability can be improved.

  Further, when the independent mode m1 is selected, there is provided a seat back remote control mechanism 83 that can be remotely operated away from the seat back 19 so that only the seat back 19 is moved forward and down independently of the seat cushion 18. It is a thing.

  According to this configuration, since the seat back remote control mechanism 83 that is effective when the independent mode m1 is selected is provided, the seat back 19 is operated at a position (separated position) separated from the rear seat 21 independently of the seat cushion 18. Therefore, the operability of the seat in the vehicle interior is improved, and in particular, only the seat back 19 can be remotely operated according to the situation in the vehicle compartment and other vehicle interiors, so that the usability can be improved.

  In addition, a luggage compartment 26 is provided behind the seat back 19, and the remote operation mechanism 53, 83 or / and 90 includes operation levers 55, 85, 94, and the operation levers 55, 85, 94 are It is disposed on the side wall 56 of the luggage compartment 26 (see FIGS. 14 and 15).

  According to this configuration, the mode switching or the seat by both the seat cushion 18 and the seat back 19 is performed from the luggage compartment 26 (rear cargo compartment) side behind the seat back 19 using the operation levers 55, 85, 94 described above. The arrangement can be operated remotely, and the convenience can be improved.

  Furthermore, a seat cushion shaft 31 that supports the seat cushion 18 so as to be movable forward and a seat back shaft 23 that supports the seat back 19 so that the seat back 19 can fall down are provided. 23, mechanical power transmission means (see sprockets 33 and 34, chain 35) sharing the rotational force of 23.

  According to this configuration, the power transmission means (see the sprockets 33 and 34 and the chain 35) can be mechanically simple and lightweight without using an electric motor or the like, and when the interlock mode m2 is selected, Since the seat cushion 18 and the seat back 19 can be moved in conjunction with each other, in particular, returned to the use position, operability and usability can be improved.

  FIG. 16 shows another embodiment of the vehicle seat device. In the previous embodiment, sprockets 33 and 34 and a chain 35 are used as mechanical power transmission means. In this embodiment shown in FIG. Timing pulleys 66 and 67 and a timing belt 68 are used as power transmission means.

  Even in this configuration, the other configurations, operations, and effects are the same as those in the previous embodiment. Therefore, in FIG. To do.

  FIG. 17 shows still another embodiment of the vehicle seat device. In each of the previous embodiments, selectors 43 and 73 that swing around the support shafts 42 and 72 are used. In the embodiment, selectors 97 and 98 that move linearly are used.

  That is, a selector guide shaft 99 is fixed to the bracket 30 on the seat cushion shaft 31 side so as to be parallel to the coaxial 31, and a selector 97 that is operated by the wire 44 with respect to the selector guide shaft 99 is provided. 97 is disposed on the sleeve 41 of the annular groove structure of the timing pulley 66.

  Similarly, a selector guide shaft 100 is fixed to the bracket 32 on the seat back shaft 23 side so as to be parallel to the coaxial 23, and a selector 98 operated by a wire 74 is provided for the selector guide shaft 100. The selector 98 is disposed on the sleeve 71 of the annular groove structure of the timing pulley 67.

  With this configuration, the timing pulleys 66 and 67 can be moved more smoothly when the modes m1 and m2 are switched. In this embodiment shown in FIG. 17 as well, other configurations, operations, and effects are the same as those in the previous embodiments. Therefore, in FIG. Detailed description thereof will be omitted.

In the correspondence between the configuration of the present invention and the above-described embodiment,
The mode switching operation mechanism of the present invention corresponds to the mode switching remote operation mechanism of the embodiment,
Similarly,
The mechanical power transmission means corresponds to the sprockets 33 and 34 and the chain 35 or the timing pulleys 66 and 67 and the timing belt 68.
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. 5 is an enlarged plan view of the main part of FIG. Explanatory drawing when unlocked Illustration in linked mode AA arrow sectional view of FIG. FIG. 11B-B cross-sectional view Plan view showing the operating lever arrangement structure CC sectional view taken along the line CC in FIG. The principal part enlarged plan view which shows the other Example of the vehicle seat apparatus. The principal part enlarged plan view which shows further another Example of the vehicle seat apparatus

Explanation of symbols

m1 ... Independent mode m2 ... Interlocking mode 18 ... Seat cushion 19 ... Seat back 23 ... Seat back shaft 26 ... Cargo compartment 31 ... Seat cushion shaft 33, 34 ... Sprocket (power transmission means)
35 ... Chain (power transmission means)
53 ... Seat cushion remote control mechanism 55, 85, 94 ... Control lever 56 ... Cargo compartment side wall 66, 67 ... Timing pulley (power transmission means)
68 ... Timing belt (power transmission means)
83 ... Remote control mechanism for seat back 90 ... Remote control mechanism for mode switching

Claims (7)

A vehicle seat device including a seat cushion and a seat back,
The seat cushion is provided movably forward,
While the seat back is provided to be able to fall substantially horizontally above the seat cushion,
An independent mode capable of independently operating the forward movement of the seat cushion and the falling movement of the seat back;
An interlocking mode capable of operating in conjunction with the forward movement of the seat cushion and the overturning movement of the seat back;
A vehicle seat device including a mode switching operation mechanism capable of selectively operating the independent mode and the interlock mode. When the seat cushion is in the forward position and the seat back is in the lying position where the seat cushion is lying down on the seat cushion, when the seat cushion returns to the used position in which the seat cushion is in the used position,
The vehicle seat device according to claim 1, wherein at least the interlock mode is selectively usable. The vehicle seat device according to claim 1 or 2, wherein the mode switching operation mechanism is set to a remote operation mechanism operable at a remote position separated from the seat back. 4. A seat cushion remote control mechanism capable of being remotely operated separately from the seat back so that only the seat cushion is moved forward independently of the seat back when the independent mode is selected. The vehicle seat device according to claim 1. 5. The seat back remote control mechanism according to claim 1, further comprising a seat back remote control mechanism that can be remotely operated apart from the seat back so that only the seat back is tilted forward independently of the seat cushion when the independent mode is selected. The vehicle seat device according to any one of the preceding claims. The cargo space 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 space. Vehicle seat 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 vehicle seat device according to any one of claims 1 to 6, further comprising mechanical power transmission means that shares the rotational force of each of the shafts when the interlock mode is selected.

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