JP4972941B2 - Vehicle seat device - Google Patents

Description

  The present invention relates to a vehicle seat device that includes a seat cushion and a seat back, and is provided with a pair of seats that are spaced apart from each other in the vehicle width direction.

Conventionally, as a vehicle seat device of the above-mentioned example, there is one disclosed in Patent Document 1.
That is, as shown in FIG. 18, the driver's seat 100 having the seat cushion 100c and the seat back 100b and the passenger seat 101 having the seat cushion 101c and the seat back 101b are spaced apart from each other in the vehicle width direction. A row seat is configured, and in the rear of the first row seat, a right rear seat 102 having a seat cushion 102c and a seat back 102b and a left rear seat 103 having a seat cushion 103c and a seat back 103b are arranged in the vehicle width direction. A second row of seats is configured to be spaced apart from each other, and on the rear side of the second row of seats, a right rear seat 104 having a seat cushion 104c and a seat back 104b, a seat cushion 105c, and a seat back 105b are provided. With the left rear seat 105 Constitute a third row seat and arranged in the vehicle width direction.

  The auxiliary seat back member 106 is cantilevered on the side of the passenger compartment in the seat back 103b of the left rear seat 103 in the second row, and the auxiliary seat cushion can be inserted into and removed from the seat cushion 103c of the rear seat 103. The member 107 is stored.

  When the seat of the six-seat mode shown by the solid line in FIG. 18 is changed to the seven-seat mode, the left and right seat backs 102b, The auxiliary seat cushion member 107 taken out from the inside of the seat cushion 103c is positioned between the left and right seat cushions 102c and 103c as shown by phantom lines in FIG. In the figure, reference numeral 108 denotes a steering wheel.

  The vehicle seat device of the conventional structure shown in FIG. 18 has an advantage that the 6-seat mode and the 7-seat mode can be selected according to the needs, but has the following problems. .

  In other words, the auxiliary seat back member 106 described above needs to have a certain degree of rigidity, and in the conventional structure shown in FIG. 18, the side of the vehicle interior side of the seat back 103b of the one seat 103 in the second row is used. Since the auxiliary seat back member 106 is simply pivotably attached to the seat 103, the size of the seat 103 to which the auxiliary seat back member 106 is attached increases in the vehicle width direction, and the auxiliary seat back member 106 is moved in the vehicle width direction. There was a problem that could not be stored compactly and nicely.

  Further, as shown by a solid line in FIG. 18, when the auxiliary seat back member 106 is folded and stored on the side surface of the seat back 103b, it disturbs the occupant seated on the third row seat and walk-through becomes difficult. There was a problem.

  Further, in the seat apparatus shown in FIG. 18, the seat cushions 104c and 105c of the third row seat are originally flipped up to fold the rear seats 104 and 105 in the front-rear direction and the rear seats of the second row seat. 102 and 103 are moved inward in the vehicle width direction and brought into contact with each other, and the pair of left and right rear seats 102 and 103 brought into contact with each other are retracted to a position where they are brought into contact with the folded third row seat, thereby being limousine mode. However, the auxiliary seat back member 106 in the retracted state protrudes inward in the vehicle width direction and also protrudes in the vehicle rear side, so that the left and right rear seats 102 and 103 are in contact with each other. However, the limousine mode cannot be secured.

  Incidentally, Patent Document 2 and Patent Document 3 disclose a vehicle seat device including an auxiliary seat back member and an auxiliary seat cushion member that can select a use position and a storage position. Any of the structures disclosed in the above is a structure in which the auxiliary seat back member and the auxiliary seat cushion member are overlapped and stored in the storage space below the seat cushion. In addition, there is a drawback that an excessive space is required in the height direction, and in any of these patent documents, the technical idea of storing the auxiliary seat back member in the storage portion formed on the side of the vehicle interior of the seat back Is not disclosed at all.

Japanese Patent Laid-Open No. 2004-249784 Japanese Patent Laid-Open No. 9-2113 JP 2001-130304 A

  Therefore, the present invention provides an auxiliary seat back member on the side of the vehicle interior of at least one of the pair of seat backs, and the auxiliary seat back member forms a backrest surface continuous with the seat back to form an auxiliary seat back. Auxiliary seat back used state and an auxiliary seat back storage state in which an auxiliary seat back member is stored in the storage portion, and a storage portion is formed on the side of the seat back in the vehicle interior. It is an object of the present invention to provide a vehicle seat device that can store a seat back member compactly and in a good appearance in the vehicle width direction.

The vehicle seat device according to the present invention includes a seat cushion and a seat back, and is provided with a pair of seats provided separately from each other in the vehicle width direction. An auxiliary seat back member is provided on the side of the vehicle interior of at least one of the seat backs, and the auxiliary seat back member forms an auxiliary seat back by forming a backrest surface continuous with the seat back. state and, selectably configure the auxiliary seat back storage state in which the auxiliary seat back member to a concave storage portion formed in the vehicle interior side surface of the seat back is stored toward the back surface in the vehicle width direction is, the storage unit, when storing the auxiliary seat back member, a vehicle interior side surface of the auxiliary seat back member, the vehicle interior side of the seat back And the pair of seats includes a retractable auxiliary seat cushion member disposed so as to form a continuous seating surface between the seat cushions of the pair of seats. The pair of seats is configured such that the auxiliary seat back member and the auxiliary seat cushion member are stored, and a walk-through passage can be formed between the pair of seats .
The pair of sheets described above may be set as a sheet in the second row.
According to the above configuration, at the time of storage of the auxiliary seat back member, since the auxiliary seat back member is stored toward the back surface in the vehicle width direction in the storage portion of the concave formed on the vehicle interior side surface of the seat back The auxiliary seat back member can be stored compactly and in a good-looking manner in the vehicle width direction.

Moreover, since the above-mentioned auxiliary seat back member is configured to be able to select an auxiliary seat back use state and an auxiliary seat back storage state, the number of seated persons can be selected.
Further, the storage portion is formed to be recessed so that when the auxiliary seat back member is stored, the side surface of the auxiliary seat back member and the side surface of the seat back are flat. When the seat back member is retracted, the side surface of the vehicle interior and the side surface of the vehicle interior of the seat back become flat, so that the seat can be made compact when the auxiliary seat back member is retracted (particularly, in the vehicle width direction) It is possible to achieve a balance between improvement of appearance. In addition, since the storage portion can be formed by the recess, the storage portion can be configured easily.

In addition, the pair of seats is provided with a retractable auxiliary seat cushion member arranged to form a continuous seating surface between the seat cushions of the pair of seats. The auxiliary seat cushion member can be stored in a state where there is no influence.

Moreover, the pair of seats is configured such that the auxiliary seat back member and the auxiliary seat cushion member are stored, and a walk-through passage can be formed between the pair of seats. Since a walk-through passage is formed between the pair of sheets, walk-through can be performed and convenience can be ensured.

In one embodiment of the present invention, a pair of auxiliary seat back members are provided on the side of the passenger compartment of the pair of seats, and the two auxiliary seat back members cooperate to form a backrest surface. To do.
According to the above configuration, since the auxiliary seat back members are provided on the respective seat backs of the pair of sheets, both the thickness and the length of the auxiliary seat back members can be made compact. The length of the back member can be ½ that of the conventional structure.

  In addition, since the auxiliary seat back members are provided on the respective seat backs of the pair of seats, these auxiliary seat back members are respectively supported on the side of the corresponding seat back in the passenger compartment, and in particular, when the auxiliary seat back is in use. The support rigidity can be shared between the left and right sides, so that the support structure can be made compact, and the backrest feeling when the auxiliary seat back is used is good, so that the ride comfort can be improved.

In one embodiment of the present invention, the pair of seats is configured to be movable in the vehicle width direction, the auxiliary seat back member and the auxiliary seat cushion member are stored, and the seat cushion and seat of each seat are stored. It is configured to be able to form a seating surface with a continuous back and a continuous backrest surface.
According to the above configuration, the seat cushions of the pair of left and right seats and the seat backs are continuous, and a mode having a wide seating surface and a wide backrest surface can be ensured.

In one embodiment of the present invention, when the auxiliary seat back member is stored, the backrest surfaces of the lower portion of the storage portion of each seat back of the pair of seats are in contact with each other and become flat. .
According to the above configuration, when the auxiliary seatback member is retracted and the pair of seats are brought into contact with each other, the backrest surfaces of the lower portions of the seatback storage portions of the pair of seats are brought into contact with each other and are flat. Therefore, the appearance can be improved.

In one embodiment of the present invention, a reinforcing member for reinforcing the lower portion is provided at the lower portion of the storage portion of the seat back.
According to the said structure, since the lower part of a storage part is reinforced with the above-mentioned reinforcement member, a deformation | transformation of the lower part of this storage part can be prevented.

  In one embodiment of the present invention, a rear row seat is provided behind the pair of seats, the rear row seat is formed to be foldable in the front-rear direction, and the pair of seats are moved inward in the vehicle width direction. The pair of sheets brought into contact with each other is configured to be retractable to a position where the pair of sheets brought into contact with the folded back row sheet.

The pair of sheets described above may be set as the second row sheet, and the rear row sheet may be set as the third row sheet.
According to the above configuration, the limousine mode having a large space in the front-rear direction can be ensured by retracting the pair of abutted sheets to a position where they are abutted against the folded back row sheets.

  According to the present invention, the auxiliary seat back member is provided on the side of the passenger compartment of at least one of the pair of seats, and the auxiliary seat back member forms a backrest surface continuous with the seat back to form the auxiliary seat back. The auxiliary seat back is used, and a storage portion is formed on the side of the seat back in the vehicle interior, and the auxiliary seat back storage state in which the auxiliary seat back member is stored in the storage portion can be selected. There is an effect that the back member can be stored compactly in a vehicle width direction with good appearance.

For the purpose of storing the auxiliary seat back member compactly and nicely in the vehicle width direction, each seat cushion and seat back are provided, and a pair of seats provided separately from each other in the vehicle width direction are provided. In the vehicle seat device , an auxiliary seat back member is provided on a side of the vehicle interior of at least one of the pair of seats, and the auxiliary seat back member forms a backrest surface that is continuous with the seat back. an auxiliary seat back use state forming an auxiliary seat back, the auxiliary which the auxiliary seat back member to a concave storage portion formed in the vehicle interior side surface of the seat back is stored toward the back surface in the vehicle width direction be selectable configured and a seat back storage state when said storage unit, which stores the auxiliary seat back member, the auxiliary The vehicle interior side surface of the seat back member and the vehicle interior side surface of the seat back are formed so as to be flat, and the pair of seats form a continuous seating surface between the seat cushions of the pair of seats. The pair of seats is stored with the auxiliary seat back member and the auxiliary seat cushion member, and forms a walk-through passage between the pair of seats. It was realized with a structure that can be configured .

An embodiment of the present invention will be described in detail with reference to the drawings.
The drawings show a vehicle seat device. In FIGS. 1 and 2, the vehicle seat device includes a driver seat 1 (a so-called driver's seat) having a seat cushion 1c, a seat back 1b, a headrest 1h, and an armrest 1a. Similarly, a passenger seat 2 having a seat cushion 2c, a seat back 2b, a headrest 2h, and an armrest 2a (a so-called passengers seat) is spaced apart (arranged) in the vehicle width direction and arranged in a first row (front) Sheet).

  Behind this first row seat is a right rear seat 3 having a seat cushion 3c, a seat back 3b, a headrest 3h and an armrest 3a, as well as a seat cushion 4c, a seatback 4b, a headrest 4h and an armrest 4a. The left-side rear seat 4 is spaced apart (arranged) in the vehicle width direction to constitute a second row seat.

Here, each of the armrests 3a and 4a described above is a vehicle compartment outer armrest provided so as to be retractable outside the vehicle compartment of the seat backs 3b and 4b of the pair of rear seats 3 and 4.
Further, a bench seat type seat cushion 5c, a seat back 5b divided so as to be 6: 4 on the right side and the left side, and a plurality of headrests 5h are provided further rearward of the above-mentioned second row seats. A rear seat 5 is disposed to constitute a third row seat.

  Each of the above-mentioned seats 1, 2, 3, 4 and 5 is disposed on a floor panel 6 having a flat structure, and a rear seat 3 on the right side of the second row seat is a front and rear slide rail 7 as a seat slide rail. 8 along the pair of front and rear side slide rails 9 and 9 (seat slide rails) provided between the front and rear slide rails 7 and 8 and the seat cushion 3c. Thus, it is configured to be movable in the vehicle width direction.

  Similarly, the rear seat 4 on the left side of the second row seat is configured to be movable in the front-rear direction along the front-rear slide rails 10, 11 as seat slide rails, and the front-rear slide rails 10, 11 and the seat cushion. It is configured to be movable in the vehicle width direction along a pair of front and rear horizontal slide rails 12 and 12 (seat slide rails) provided between 4c and 4c.

  Each of the above-mentioned front and rear slide rails 7, 8, 10, and 11 is a long slide rail provided in parallel with each other on the floor panel 6, and the two front and rear slide rails 8 and 10 are arranged on both sides. The two front and rear slide rails 7 and 11 are further elongated, and the slide rails 7 and 11 on both sides extend to the rear part of the wheel houses 13 and 13 in the third row. The rear seat 5 is configured to be movable in the front-rear direction along the two front and rear slide rails 7 and 11 on both sides.

  FIG. 3 is a perspective view showing the second row of seats. As shown in FIGS. 1 to 3, the left and right rear seats 3, 4 have left and right seat backs 3 b, 4 b in the vehicle interior side. A pair of auxiliary seatback members 14, 14 divided into two are provided facing each other, and these auxiliary seatback members 14, 14 are provided on the vehicle interior side of the seatbacks 3 b, 4 b of the pair of rear seats 3, 4. The pair of left and right auxiliary seatback members 14 and 14 cooperate to form a backrest surface 14b that is continuous with the seatbacks 3b and 4b. , 14b, and the auxiliary seat back 15 is formed on the center side of the passenger compartment (using the auxiliary seat back).

  Further, as shown in FIG. 4, the pair of auxiliary seatback members 14, 14 described above are horizontally moved when the auxiliary seatback members 14, 14 are moved forward as shown in FIG. 4. The armrest 16 is configured to be in an armrest state in which a continuous armrest 16 is formed on the center side of the passenger compartment in cooperation with the auxiliary seatback used state shown in FIG. 3, the armrest state shown in FIG. The auxiliary seat back storage state to be described can be selected.

  Here, when the pair of auxiliary seat back members 14 and 14 are horizontally arranged to be in the armrest state, and the vehicle interior outer armrests 3a and 4a are in the horizontal use state of FIG. Thus, passenger comfort can be improved.

  In addition, as shown in FIG. 5, the pair of auxiliary seatback members 14 and 14 described above includes the storage recesses 3e and 4e on the side of the vehicle interior of the pair of seatbacks 3b and 4b. The backrest surfaces 14b and 14b can be stored independently in the left-right direction in the vehicle width direction (auxiliary seat back storage state).

As shown in FIG. 5, the storage recesses 3e and 4e described above, when the auxiliary seatback members 14 and 14 are stored, are side surfaces of the auxiliary seatback members 14 and 14, that is, backrest surfaces 14 b and 14 b, and storage recesses. 3e and 4e are recessed and formed so that the vehicle interior side surfaces X and X of the seat backs 3b and 4b in the lower portions 3g and 4g of the seats 3e and 4e become flat.
In other words, the recessed depth in the vehicle width direction of the storage recesses 3e, 4e is set to be substantially equal to the thickness of the auxiliary seat back members 14, 14.

  On the other hand, as shown in FIG. 3, any one of the pair of left and right rear seats 3 and 4 (left rear seat 4 in this embodiment) is provided between the seat cushions 3c and 4c of the pair of rear seats 3 and 4. And a retractable auxiliary seat cushion member 17 arranged to form a continuous seating surface 17c.

  FIG. 7 is a perspective view showing a structure in which the auxiliary seat cushion member 17 is put in and out. The seat cushion 4c of the left rear seat 4 in the second row seat includes a lower cushion body 18 and an upper seat cushion seat portion. And 19.

The above-mentioned cushion body 18 is formed with a storage recess 20 in which the auxiliary seat cushion member 17 can be stored. The auxiliary seat cushion member 17 is hingedly connected to the side wall portion 18a on the inner side in the vehicle width direction of the cushion body 18 via a hinge member 21 so that the auxiliary seat cushion member 17 can be taken out and stored.
Further, a cushion seat portion 19 is connected to the front portion of the cushion body 18 through a pair of hinge members 22 and 22 so as to be opened and closed.

  To take out the auxiliary seat cushion member 17 stored in the storage recess 20 of the seat cushion 4c, first, the cushion seat portion 19 is opened via the hinge member 22 as shown in FIG. The auxiliary seat cushion member 17 is taken out through the seat cushions 3c and 4c of the left and right rear seats 3 and 4, and a continuous seating surface 17c is formed between the seat cushions 3c and 4c. Once the opened cushion seat 19 is closed to the original state, the auxiliary seat cushion is used as shown in FIG.

  Further, when the removed auxiliary seat cushion member 17 in the used state is stored in the storage recess 20, the cushion seat portion 19 is first opened through the hinge member 22, and then the hinge member 21 is used. After the auxiliary seat cushion member 17 is stored in the storage recess 20, once the opened cushion seat portion 19 is closed to the original state, the auxiliary seat cushion member 17 does not affect the seat arrangement. It is stored inside the seat cushion 4c.

  As described above, since the auxiliary seat back members 14 and 14 and the auxiliary seat cushion member 17 are configured to be retractable, the pair of left and right rear seats 3 and 4 of the second row seats are as shown in FIG. The auxiliary seat back members 14 and 14 and the auxiliary seat cushion member 17 can be stored, respectively, and a walk-through passage 23 is formed between the pair of left and right rear seats 3 and 4 under the stored state. It is configured.

  Here, the above-mentioned auxiliary seat back members 14 and 14 are stored in the storage recesses 3e and 4e of the corresponding seat backs 3b and 4b, respectively, Since the lower side 3g and 4g of the storage recesses 3e and 4e are flush with the surface on the vehicle interior side, that is, flat, the walk-through passage 23 can be enlarged.

Further, since the pair of left and right rear seats 3 and 4 are configured to be movable in the vehicle width direction along the corresponding horizontal slide rails 9 and 12, the above-described auxiliary seat back members 14 and 14 and the auxiliary seat cushion member 17 are provided. The pair of rear seats 3 and 4 are moved inward in the vehicle width direction along the lateral slide rails 9 and 12, and the seat cushions 3c and 4c and the seat backs 3b and 4b are continuous. A seating surface and a continuous backrest surface are formed, and a mode having a wide seating surface continuous to the left and right and a wide backrest surface continuous to the left and right can be secured (see FIG. 6) .

  In the state shown in FIG. 6, the backrest surfaces of the lower portions 3g, 4g of the storage portions 3e, 4e of the respective seat backs 3b, 4b of the pair of left and right rear seats 3, 4 abut against each other as shown in FIG. Thus, a flat state with no gap between the two 3g and 4g is obtained, and the appearance is improved.

  Further, as shown in FIGS. 1 and 2, a rear seat 5 serving as a third row seat is disposed further rearward of the pair of left and right rear seats 3 and 4 of the second row seat. As shown in FIG. 8, the rear seats 5 in the row are formed so that the seat cushions 5c are flipped upward so that the rear seats 5 can be folded in the front-rear direction. From the state shown in FIGS. 5, after the auxiliary seat back members 14 and 14 and the auxiliary seat cushion member 17 are stored, the pair of left and right rear seats 3 and 4 in the second row are moved to the horizontal slide rail 9 as shown in FIG. 6. , 12 is moved inward in the vehicle width direction and brought into contact with each other, and then the paired left and right rear seats 3, 4 are folded along the front and rear slide rails 7, 8, 10, 11. In the rear row 5 of the third row That retracting movement to a position abutting the seat cushion 5c, as shown in FIG. 8, it is configured to be able to longitudinal space to secure a wide limousine mode.

  That is, in the full riding mode shown in FIGS. 1 and 2, a maximum of eight people can be ridden, and the auxiliary seat back members 14 and 14 and the auxiliary seat cushion member 17 of the second row seat are shown in FIGS. 4, 5 and 6. When displaced as shown in FIG. 8, a maximum of seven passengers can be boarded. When the seat arrangement is performed in the limousine mode shown in FIG. 8, a four-person board with a wide space in the front-rear direction is possible.

  In short, a seat capable of selecting the number of seated persons can be formed with a simple configuration, a seat capable of selecting the number of seated persons, use of the armrest 16 on the center side of the passenger compartment (see FIG. 4), and a walk. Through (see FIG. 5) can be achieved, and a multi-person riding mode and a small-passenger riding mode (limousine mode) having a wide seating surface and a wide backrest surface can be achieved. .

3 to 6, reference numeral 24 denotes a lateral slide release lever (side release lever) that also serves as a handle and is provided below the seat cushions 3 c and 4 c of the rear seats 3 and 4 in the second row , and 25 denotes a step. 1, 2, and 8, 26 is a steering wheel, 27, 27 is an instrument panel, 28 is a front door, and 29 is a sliding rear door. (So-called sliding door).

  Next, referring to FIG. 9 and FIG. 10, the auxiliary seat back member 14 is in the auxiliary seat back use state (see FIG. 3), the auxiliary seat back retracted state (see FIGS. 5 and 6), and the armrest state (see FIG. 4). ) Will be described. 9 and 10, the hinge structure of the left auxiliary seatback member 14 of the pair of rear seats 3 and 4 will be described. However, the hinge structure of the right auxiliary seatback member 14 is configured symmetrically with that of the left side. ing.

The seat back 4b is supported by a seat back frame 31 made of metal pipe, and a fixing bracket 32 as a side frame is integrally welded and fixed to an inner portion 31a in the vehicle width direction of the seat back frame 31.
The auxiliary seat back member 14 is supported by a support frame 35 including a frame member 33 (a rod member or a pipe member) and a plate member 34. The plate member 34 includes a plurality of auxiliary seat back members 14 for the purpose of reducing the weight. Opening 36 (for example, a round hole) is formed.

Between the seat back frame 31 and the support frame 35 described above, the hinge bracket 37 is integrally fixed to the hinge bracket 37, the extension building support shaft 38 (rod-shaped upwardly shaft or pipe-shaped support shaft ).

  An outer cylinder 39 (pipe member) that can rotate around the support shaft 38 is attached to the outer periphery of the support shaft 38, and the support frame 35 is fixed to the outer peripheral surface of the outer cylinder 39 by welding. . Further, a flange 40 that is integrally fixed to the outer cylinder 39 is provided at the lower portion of the outer cylinder 39, and the outer cylinder 39 and the flange 40 are configured to rotate integrally.

  In the above-described flange 40, two pin holes 41 and 42 (locking holes) are formed with an opening angle of about 90 degrees so as to correspond to the usage state of the auxiliary seat back member 14 and the storage body. A locking pin 43 (locking member) as a lock pin is alternatively inserted into these pin holes 41 and 42.

  On the other hand, the hinge bracket 37 is provided with an L-shaped lever member 45 that can swing around a pin 44 (shaft support member) as a fulcrum, and an operation strap 46 is provided at one end (front end in the drawing) of the lever member 45. A so-called string is connected, and the above-described locking pin 43 is pin-connected to the other end (rear end shown) of the lever member 45. The above-described locking pin 43 is guided by a guide member (not shown) in order to smooth the attachment and detachment with respect to the pin holes 41 and 42, while the above-mentioned lever member 45 has the locking pin 43 always at one pin hole 41 or 42. The spring is biased in the direction of being engaged.

  Further, at a position below the pin 44 of the hinge bracket 37, a bearing-shaped bearing portion 47 with a guide and two arc-shaped guide holes 48, 49 centering on the center of the bearing portion 47 are formed. ing. These two guide holes 48 and 49 allow the auxiliary seatback member 14 supported by the support frame 35 to rotate in both the auxiliary seatback use state and the armrest state.

On the inner surface in the vehicle width direction of the fixed bracket 32 facing the hinge bracket 37 described above, an armrest shaft 50 inserted into the bearing portion 47 and two stopper pins 51 and 52 inserted into the guide holes 48 and 49 are provided. Is protruding.

In FIG. 9, for convenience of illustration, an exploded perspective view is shown. However, the armrest shaft 50 on the fixed bracket 32 side is inserted into the bearing portion 47 of the hinge bracket 37, and the two stopper pins 51 and 52 are two guide holes 48 and 49. These are assembled in the state of being inserted. The solid line state in FIG. 9 corresponds to the auxiliary seat back use state.
In addition, the above-described formation range of the guide holes 48 and 49 is limited to an opening angle of 90 degrees as long as the auxiliary seatback member 14 can be rotated between the auxiliary seatback use state and the armrest state. It is not a thing.

  In the hinge structure configured as described above, in order to change from the auxiliary seat back use state shown by the solid line in FIG. 9 to the arm rest state, the hinge bracket 37, the support shaft 38, the outer cylinder 39, and the support frame 35 with the arm rest shaft 50 as a fulcrum. Are integrally rotated in the direction of the arrow a until the elements 37, 38, 39, and 35 are rotated forward until the stopper pins 51 and 52 on the fixed bracket 32 side are restricted. Since the auxiliary seat back member 14 is restricted from rotating at a horizontal position and is stationary, an armrest state (see FIG. 4) can be ensured. The position of the auxiliary seatback member 14 in the armrest state and the above-described auxiliary seatback use state is regulated under the respective states by the friction function.

  In order to change from the auxiliary seat back use state shown by the solid line in FIG. 9 to the retracted state of the auxiliary seat back member 14 shown by the phantom line in FIG. 9, first, the strap 46 is moved in the direction of the arrow b against the spring biasing force. Pull. When the strap 46 is pulled in the direction of arrow b, the lever member 45 rotates in the direction of arrow c with the pin 44 as a fulcrum, and the locking pin 43 pin-connected to the other end of the lever member 45 is shown in FIG. As shown by an arrow d, the locking pin 43 is removed from the pin hole 41, the locked state by the locking pin 43 is released, and the unlocked state is established.

When the auxiliary seat back member 14 is manually rotated in the direction of arrow e in FIG. 9 in this unlocked state, the outer cylinder 39, the flange 40, and the support frame 35 are integrally rotated backward with the support shaft 38 as a fulcrum. Then, since the locking pin 43, which is always spring-biased in the engaging direction, is engaged with the pin hole 42, the auxiliary seat back member 14 in the auxiliary seat back use state is stored in the retracted state as shown in FIG. In addition, the position can be regulated in the retracted state by engaging the locking pin 43 with the pin hole 42. The position restriction by the engagement of the locking pin 43 is the same even when the auxiliary seat back is in use as shown by the solid line in FIG.
Instead of the hinge structure shown in FIGS. 9 and 10, the hinge structure shown in FIGS. 11 and 12 may be adopted.

In the hinge structure shown in FIGS. 11 and 12, an armrest shaft 53 is integrally projected on the surface of the hinge bracket 37 facing the fixed bracket 32, and a key 54 acting as a positioning stopper is provided on the armrest shaft 53. It is installed.
The fixing bracket 32 on the seat back frame 31 side is fixedly welded with a cutout cylinder 55 extending inward in the vehicle width direction from the inner surface in the vehicle width direction, and a hole through which the threaded portion 53a at the tip of the armrest shaft 53 passes. A portion 32a is formed.

  Then, after assembling the hinge bracket 37 and the fixed bracket 32 so that the armrest shaft 53 is rotatably guided by the cutout cylinder 55, the threaded portion 53a that penetrates outward from the hole 32a in the vehicle width direction. On the other hand, the nut 57 is tightened via the washer 56 to allow the armrest shaft 53 to rotate and to prevent the armrest shaft 53 from being detached inward in the vehicle width direction.

  With this configuration, when the auxiliary seatback member 14 is in the auxiliary seatback use state, the key 54 abuts against one of the cutout portions 55b of the cutout cylinder 55 as shown in FIG. When the element 37 to 40, 35 is rotated horizontally using the armrest shaft 53 as a fulcrum, the key 54 is placed on the other notch 55a of the notch cylinder 55. The armrest state can be maintained by abutting.

  Also in the embodiment shown in FIGS. 11 and 12, since the other structures are the same as those in FIGS. 9 and 10, the same reference numerals are given to the same parts in FIGS. 11 and 12, the armrest shaft 53 can be made larger in diameter than the structures shown in FIGS. 9 and 10, so that the auxiliary seat back member 14 is supported. The rigidity can be improved. 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.

  13 is an enlarged view of the right seat 3 of the pair of rear seats 3 and 4 shown in FIG. 5, FIG. 14 is a cross-sectional view taken along the line CC of FIG. 13, and FIG. As shown in FIGS. 14 and 15, the seat back 3 b of the rear seat 3 includes a pad member 60 and a skin member 61. Similarly, the auxiliary seat back member 114 includes a pad member 62 and a skin member 63.

As described above, the seat back 3b is formed with the storage recess 3e having a depth substantially equal to the thickness of the auxiliary seat back member 14, and as shown in FIG. When stored in the storage recess 3e, the interior side surface of the auxiliary seat back member 14 (see the backrest surface 14b) and the interior side surface X of the seat back 3b in the lower portion 3g of the storage recess 3e are flush with each other. It is configured to be.
In other words, the lower part 3g of the storage recess 3e has a structure that protrudes inward in the vehicle width direction with respect to the upper side part.
For this reason, a reinforcing member 64 that reinforces the lower part 3g is provided in the lower part 3g of the storage recess 3e of the seat back 3b, and is configured to prevent deformation of the lower part 3g.

This reinforcing member 64 is joined and fixed to a fixing bracket 32 as a side frame, and its specific structure is as shown in a perspective view in FIG.
That is, as shown in FIG. 16, the reinforcing member 64 includes an upper piece 64a extending in the front-rear direction on the upper side, an upper front piece 64b extending inward in the vehicle width direction from the front end of the upper piece 64a, and the front piece. A side piece 64c extending linearly downward from the inner end of 64b, a lower front piece 64d extending outward in the vehicle width direction from the lower end of the side piece 64c, and rearward from the outer end of the front piece 64d The lower piece 64e extending in the direction is bent from a single pipe member or bar member as shown in the figure.
Instead of the structure shown in FIG. 16, the structure shown in FIG. 17 may be adopted.

  The reinforcing member 64 shown in FIG. 17 includes an upper inner piece 64f extending downward by a predetermined amount from the inner end of the upper front piece 64b and a lower side extending upward by a predetermined amount from the inner end of the lower front piece 64d. The inner piece 64g is provided, and a U-shaped side piece 64h is integrally connected to the open side of the upper and lower inner pieces 64f and 64g.

  Then, the reinforcing member 64 shown in FIG. 16 or FIG. 17 is provided in the lower part 3g to reinforce the lower part 3g and prevent deformation of the lower part 3g.

13 to 17, the right-side seat structure has been described, but the left-side seat structure is configured symmetrically with the right-side seat structure.
In FIG. 13, 65 is a cover member that covers the main part of the hinge structure shown in FIGS.

As described above, the vehicle seat device of the above embodiment includes the seat cushions 3c and 4c and the seat backs 3b and 4b, respectively, and is provided with a pair of rear seats 3 and 4 that are spaced apart from each other in the vehicle width direction. An auxiliary seat back member 14 is provided on the vehicle interior side of at least one of the pair of rear seats 3 and 4 (in this embodiment, both seat backs 3b and 4b). An auxiliary seat back use state in which the auxiliary seat back member 14 forms a backrest surface 14b continuous with the seat back to form the auxiliary seat back 15 (see FIG. 3); The auxiliary seat back storage state in which the auxiliary seat back member 14 is stored in the storage concave portion (3e or / and 4e) formed in (see FIG. 5) Those which are selectably configure.
According to this configuration, when the auxiliary seat back member 14 is stored, the auxiliary seat back member 14 is stored in the storage recess (3e or / and 4e) formed on the side of the seat back in the passenger compartment. The seat back member 14 can be stored compactly in a vehicle width direction with good appearance.

  Further, the above-described auxiliary seat back member 14 is configured to be able to select an auxiliary seat back use state (see FIG. 3) and an auxiliary seat back storage state (see FIG. 5), so that the number of seated persons can be selected. Become.

Further, a pair of auxiliary seat back members 14 and 14 are provided on the side of the cabin of the respective seat backs 3b and 4b of the pair of rear seats 3 and 4, and the two auxiliary seat back members 14 and 14 cooperate with each other. The backrest surfaces 14b and 14b are formed.
According to this configuration, since the auxiliary seat back members 14 and 14 are provided on the respective seat backs 3b and 4b of the pair of rear seats 3 and 4, both the thickness and the length of the auxiliary seat back members 14 and 14 are provided. Both can be compact, and in particular, the length of the auxiliary seat back member 14 can be ½ that of the conventional structure.

  In addition, since the auxiliary seat back members 14 and 14 are provided on the respective seat backs 3b and 4b of the pair of rear seats 3 and 4, the auxiliary seat back members 14 and 14 are located on the side of the corresponding seat backs 3b and 4b in the vehicle interior. In the auxiliary seat back use state (see FIG. 3), the support rigidity can be shared between the left and right sides, and the support structure can be made compact, and the backrest feeling in the auxiliary seat back use state can be achieved. Well, it can improve the ride comfort.

In addition, when the auxiliary seat back members 14 and 14 are stored, the storage recesses 3e and 4e are provided in the vehicle interior side surface of the auxiliary seat back members 14 and 14 (see the backrest surface 14b) and the seat backs 3b and 4b. The interior side surface X is formed so as to be flat.
According to this configuration, the storage recesses 3e and 4e can be easily configured, and of course, when the auxiliary seat back members 14 and 14 are stored, the interior side surface 14b and the interior side surfaces of the seat backs 3b and 4b Since X becomes flat, it is possible to achieve both compactness of the seats 3 and 4 when the auxiliary seatback members 14 and 14 are stored (particularly compaction in the vehicle width direction) and improvement in appearance. .

The pair of rear seats 3, 4 includes a retractable auxiliary seat cushion member 17 that is disposed so as to form a continuous seating surface 17 c between the seat cushions 3 c, 4 c of the pair of rear seats 3, 4. It is provided (see FIG. 3).
According to this configuration, the auxiliary seat cushion member 17 can be stored without affecting the seat arrangement.

Further, the pair of rear seats 3 and 4 store the auxiliary seat back members 14 and 14 and the auxiliary seat cushion member 17 so that a walk-through passage 23 can be formed between the pair of rear seats 3 and 4. It is configured (see FIG. 5).
According to this configuration, since the walk-through passage 23 is formed between the pair of rear seats 3 and 4, walk-through can be performed and convenience can be ensured.

Further, the pair of rear seats 3 and 4 are configured to be movable in the vehicle width direction, and the auxiliary seat back members 14 and 14 and the auxiliary seat cushion member 17 are stored therein, and the rear seats 3 and 4 are respectively stored. The seat cushions 3c, 4c and the seat backs 3b, 4b are configured to form a seating surface and a continuous backrest surface (see FIG. 6).
According to this configuration, the seat cushions 3c, 4c of the pair of left and right rear seats 3, 4 and the seat backs 3b, 4b are continuous, and have a wide seating surface and a wide backrest surface as shown in FIG. Can be secured.

Further, when the auxiliary seat back members 14 and 14 are stored, the backrest surfaces of the lower portions 3g and 4g of the storage recesses 3e and 4e of the respective seat backs 3b and 4b of the pair of rear seats 3 and 4 come into contact with each other and become flat. It is comprised so that it may become (refer FIG. 5, FIG. 13).
According to this configuration, when the auxiliary seat back members 14 and 14 are stored, the backrest surfaces of the lower recesses 3g and 4g of the storage recesses 3e and 4e of the seat backs 3b and 4b of the pair of rear seats 3 and 4 abut each other. Since it becomes flat, the appearance can be improved.

Further, the lower portions 3g, 4g of the storage recesses 3e, 4e of the seat backs 3b, 4b are provided with reinforcing members 64 for reinforcing the lower portions 3g, 4g.
According to this configuration, since the lower portions 3g and 4g of the storage recesses 3e and 4e are reinforced by the above-described reinforcing member 64, deformation of the lower portions 3g and 4g of the storage recesses 3e and 4e can be prevented.

In addition, a rear row seat (see the rear row seat 5 in the third row) is provided behind the pair of rear seats 3 and 4, and the rear row seat 5 is formed so as to be foldable in the front-rear direction. Are moved inward in the vehicle width direction and brought into contact with each other, and the pair of seats brought into contact with each other are configured to be retractable to a position where they are brought into contact with the folded rear row seat 5 (see FIG. 8).
According to this configuration, the limousine mode having a large space in the front-rear direction can be ensured by retracting the pair of rear seats 3 and 4 that are brought into contact with each other to a position where they are brought into contact with the folded back row seat 5.

In the correspondence between the configuration of the present invention and the above-described embodiment,
The pair of seats of the present invention correspond to the rear seats 3 and 4 in the second row of the embodiment,
Similarly,
The rear row seat corresponds to the rear seat 5 in the third row,
The storage portion corresponds to the storage recess 3e or / and 4e,
The present invention is not limited to the configuration of the above-described embodiment.

For example, the rear seat 5 in the third row may be a bench seat type or a bucket seat type.
Further, the side support portions on both sides of the seat backs 3b, 4b in the second row of seats 3, 4 may be substantially flush with the backrest surfaces of the seat backs 3b, 4b. Further, the front and rear slide rails 7, 8, 10, and 11 may be embedded in the floor panel 6 to eliminate the step between each of the seat stride rails and the upper surface of the floor panel 6.

The perspective view under the full boarding mode state which shows the vehicle seat apparatus of this invention 1 is a plan view of the main part of FIG. Perspective view showing the second row seat A perspective view when the auxiliary seat back member is arranged in the armrest state Perspective view when forming walk-through passage A perspective view showing a mode in which a pair of sheets are brought into contact with each other The perspective view which shows the taking in / out structure of an auxiliary seat cushion member Perspective view showing limousine mode Exploded perspective view showing hinge structure AA line arrow sectional view of FIG. An exploded perspective view showing another embodiment of the hinge structure BB cross-sectional view of FIG. 11 after the hinge structure is assembled Enlarged perspective view showing right side seat in second row CC sectional view taken on line CC of FIG. DD sectional view taken along line D-D in FIG. Perspective view of reinforcing member The perspective view which shows the other Example of a reinforcement member Plan view showing a conventional vehicle seat device

3, 4 ... Rear seat (a pair of seats)
3b, 4b ... Seat back 3c, 4c ... Seat cushion 3e, 4e ... Storage recess (storage)
3g, 4g ... lower part 5 ... rear seat (rear row seat)
DESCRIPTION OF SYMBOLS 14 ... Auxiliary seat back member 14b ... Backrest surface 15 ... Auxiliary seat back 17 ... Auxiliary seat cushion member 17c ... Seat surface 23 ... Walk through passage 64 ... Reinforcement member

Claims (6)

A vehicle seat device comprising a seat cushion and a seat back, each of which is provided with a pair of seats spaced apart in the vehicle width direction,
An auxiliary seat back member is provided on the vehicle interior side of at least one of the pair of seats,
The auxiliary seat back use state in which the auxiliary seat back member forms a backrest surface continuous with the seat back to form an auxiliary seat back,
Be selectable constituting the auxiliary seat back storage state in which the auxiliary seat back member is stored toward the back surface in the vehicle width direction in the storage portion of the concave formed on the vehicle interior side surface of the seat back,
When the auxiliary seat back member is stored, the storage portion is formed to be recessed so that the side surface of the auxiliary seat back member in the vehicle interior and the side surface of the seat back in the vehicle interior are flat.
The pair of seats includes a retractable auxiliary seat cushion member arranged to form a continuous seating surface between the seat cushions of the pair of seats,
In the pair of seats, the auxiliary seat back member and the auxiliary seat cushion member are stored,
A vehicle seat device configured to be able to form a walk-through passage between the pair of seats . A pair of auxiliary seat back members are provided on the sides of the interior of the seat backs of the pair of seats,
The vehicle seat device according to claim 1, wherein the two auxiliary seat back members cooperate to form a backrest surface. The pair of seats is configured to be movable in the vehicle width direction,
The auxiliary seat back member and the auxiliary seat cushion member are stored so that a seating surface in which the seat cushion and the seat back of each seat are continuous and a continuous backrest surface can be formed. The vehicle seat device according to claim 1 or 2. When stored in the auxiliary seat back member, a pair of each vehicle of the backrest surface of the storage subordinates portion of the seat back is mutually abutting mounting configured <br/> claim 3 Symbol to be the flat sheet Sheet device. The vehicle seat device according to any one of claims 1 to 4 , wherein a reinforcing member that reinforces the lower portion is provided at a lower portion of the storage portion of the seat back . A rear row seat is provided behind the pair of seats,
The rear row seat is formed to be foldable in the front-rear direction,
The pair of seats are configured to be moved inward in the vehicle width direction so as to come into contact with each other, and the pair of seats brought into contact with each other can be retracted to a position where they come into contact with the folded back row seat. 3 vehicle seat equipment described.

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