JP2002219978A - Vehicle seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle seat assuring practical application with good easiness to handle, whereby holding approximately horizontally can be generated only by taking out an assist seat from an accommodation box. SOLUTION: The vehicle seat is equipped with a first link 19 and a second link 23, and it is arranged so that the end 23a of the second link 23 is pressed to the end of a second long hole 22 when the assist seat 7 is turned toward outside the accommodation box 5, and also the end 19b of the first link 19 is pressed to the bottom of a first long hole 16, and thereby a leg member 11 is fixed in the vertical attitude to cause an assist seat cushion 8 to be held approximately horizontally.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a vehicle seat.

[0002]

2. Description of the Related Art Generally, an auxiliary seat installed in a vehicle is composed of an auxiliary seat cushion and an auxiliary seat back, as disclosed in Japanese Utility Model Laid-Open Publication No. 1-145629, for example. A seat cushion is rotatably mounted on a side of the vehicle seat. And, when the auxiliary seat is not used, the auxiliary seat back is stored in a vertical state in which the auxiliary seat back is turned upward in a folded state,
When the auxiliary seat is used, the auxiliary seat cushion is leveled and the auxiliary seat back is caused to allow the occupant to sit down.

[0003]

However, according to such a conventional technique, even when stored,
Since the auxiliary seat exists vertically on the side of the vehicle seat, the space on the side of the vehicle seat is reduced.
The side space of this vehicle seat is used when a passenger gets on and off, and the passenger moves to the front and rear seats (walk-through).
Due to the space used for the operation, the space is narrowed, so that the getting on / off property and the walk-through property are reduced.

Therefore, instead of storing the auxiliary seat in a folded state at the side of the vehicle seat, a storage box is provided below the vehicle seat, the auxiliary seat is stored therein, and the seat is stored only when used. A new structure is conceivable in which the auxiliary sheet is removed from the storage box while being removed or moved, and the auxiliary sheet is taken out while being inverted.

However, even in such a storage box type auxiliary sheet structure, it is difficult to develop a mechanism capable of holding the auxiliary sheet substantially horizontally by simply taking out the auxiliary sheet from the storage box to the outside. No practical auxiliary sheet structure has been proposed.

The present invention has been made by paying attention to such a conventional technology, and is a practical vehicle seat with good operability that can be held substantially horizontally just by taking out the auxiliary seat from the storage box to the outside. Is provided.

[0007]

According to the first aspect of the present invention,
In a storage box having an upper opening covered by a seat cushion, an auxiliary seat including an auxiliary seat cushion and an auxiliary seat back foldable with respect to the auxiliary seat cushion can be stored in an inverted state in the storage box and used. At this time, the auxiliary seat cushion is turned around the side hinge fixed to one end of the auxiliary seat cushion and rotatably supported near the opening side edge of the storage box, and the opening is opened. Out of the storage box together with the auxiliary seat back, and raises the leg member folded along the lower surface of the auxiliary seat cushion substantially vertically about a pivot point set at the other end of the auxiliary seat cushion. This is a vehicle seat that can hold the auxiliary seat cushion substantially horizontally. The two ends of the first link are rotatably engaged with the intermediate portion between the bracket and the leg member set below the side hinge of the storage box, and the auxiliary portion is assisted at the intermediate portion of the leg member. A first elongated hole for absorbing a rotation error between the seat cushion and the first link is formed, and a second link is provided at a portion below the first elongated hole of the leg member and at an intermediate portion of the first link. Are rotatably engaged with each other, and a second elongated hole is formed at an intermediate portion of the first link to absorb a rotation error between the first link and the second link. When the leg member is turned, the end of the second link is pressed against the end of the second slot and the end of the first link is pressed against the lower end of the first slot. Is fixed to the ® emission is substantially horizontally held.

According to the first aspect of the present invention, since the bracket set below the side hinge of the storage box and the intermediate portion of the leg member are connected by the first link, the auxiliary seat cushion and the first seat are connected. A four-section first link structure having links at the upper side and the lower side, respectively, is formed, and in conjunction with the rotation of taking out the auxiliary sheet from the storage box,
The leg members are automatically raised. Further, since the lower portion of the leg member below the first long hole and the intermediate portion of the first link are connected by the second link, the second link is provided when the auxiliary sheet is rotated to the outside of the storage box. Is pressed against the end of the second elongated hole, and the end of the first link is pressed against the lower end of the first elongated hole, whereby the leg member is fixed in a vertical state, and the auxiliary seat cushion is substantially Holds horizontally. A first slot for absorbing a rotation error between the auxiliary seat cushion and the first link is formed in a middle portion of the leg member, and a first link and a second link are formed in a middle portion of the first link. Since the second long hole is formed to absorb the rotation error of the first and second links, the first link and the second link can be stored together with the leg members along the lower surface of the auxiliary seat cushion.

According to the second aspect of the present invention, the seat back is fixed to the rear portion of the storage box, and the seat cushion is rotatable to the front side about a front hinge provided at a front edge of the opening of the storage box.

According to the second aspect of the present invention, since the seat back is fixed to the rear portion of the storage box, when the storage box is opened, only the seat cushion needs to be rotated to the front side, and workability is improved. Is good.

According to a third aspect of the present invention, a frame is integrally fixed around a storage box, and the frame is slidably supported back and forth through a slide rail.
The lock provided at the lower end of the leg member is selectively engageable with a plurality of strikers along the front-rear direction provided on the floor.

According to the third aspect of the present invention, the lock provided at the lower end of the leg member is selectively engaged with the plurality of strikers provided on the floor, so that the auxiliary seat and the main seat can be predetermined. Can be fixed at the sliding position.

According to the invention of claim 4, a table surface is provided on the back surface of the auxiliary seat back.

According to the fourth aspect of the present invention, if the auxiliary sheet is taken out of the storage box and the auxiliary seat back is kept down, it can be used as a table, which is convenient.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS. FIG. 5 is schematically illustrated. This embodiment relates to a second seat 1 of a three-row seat of a wagon as a vehicle. Two second sheets 1 are arranged side by side on the left and right, but only the right side thereof is shown.

The second seat 1 comprises a seat cushion 2 and a seat back 3, and is attached to a storage box 5 which is supported on a floor via a slide rail 4 so as to be able to move back and forth.

The storage box 5 has a shape having an opening at an upper portion, and a frame 6 called a riser is fixed around the storage box 5. The frame 6 is for increasing the rigidity of the storage box 5, and the slide rail 4 is also attached to the frame 6. Since the rigidity of the storage box 5 is maintained by the frame 6, even if the storage box 5 is slid back and forth, the storage box 5 is not deformed. The storage box 5 can be fixed at an arbitrary sliding position by a lock mechanism (not shown) provided on the slide rail 4.

The seat cushion 2 is in a state in which the opening of the storage box 5 is closed, and is centered on a pair of left and right front hinges FH provided at the front end of the frame 6 as shown by a two-dot chain line in FIG. Then, the opening of the storage box 5 can be opened by rotating to the front side. The seat back 3 is fixed to the rear end of the frame 6.

An auxiliary sheet 7 is stored in the storage box 5. The auxiliary seat 7 has a structure including an auxiliary seat cushion 8 and an auxiliary seat back 9 foldable with respect to the auxiliary seat cushion 8, and in a stored state, the auxiliary seat cushion 8 is in an inverted state in which the lower surface of the auxiliary seat cushion 8 faces upward. ing. In addition, the auxiliary seat back 9
A table surface 10 having a recess 10a for a cup holder is formed on the back surface of the table.

One end of the auxiliary seat cushion 8 has a side hinge S rotatably supported by the left edge of the frame 6.
Fixed to H. Therefore, the auxiliary seat cushion 8
Can be taken out from the opened storage box 5 to the outside together with the auxiliary seat back 9 around the side hinge SH so as to be rotatable.

A substantially U-shaped leg member 11 is attached to the lower surface of the auxiliary seat cushion 8. The upper end of the leg member 11 is attached so as to be rotatable around a rotation fulcrum 11 a on the other end side (opposite to the side hinge SH) on the lower surface of the auxiliary seat cushion 8.
Therefore, it can be folded along the lower surface of the auxiliary seat cushion 8 and can be raised vertically. A damper 12 is provided on the front side of the leg member 11, and a lock 14 is provided on the rear side of the leg member 11 so as to be selectively engageable with three strikers 13 formed on the floor along the front-rear direction.

The front end of the leg member 11 is formed by a bracket 15 having a hat-shaped cross section.
A first long hole 16 is formed in the upper part of 5 along the vertical direction (see FIG. 6). On the other hand, another bracket 17 fixed to the frame 6 is provided below the side hinge SH in the storage box 5. The bracket 17 has a circular support hole 18 formed therein.

The support hole 18 of the bracket 17
And the first long hole 16 of the bracket 15 on the leg member 11 side
, Both ends 19a and 19b of the first link 19 are inserted in a bent state. Both ends 19a and 19b of the first link 19 are inserted into the support hole 18 and the first elongated hole 16 with the washer 20 interposed therebetween, and are prevented from being pulled out by the push nut 21 on the opposite side. Accordingly, both ends 19a and 19b of the first link 19 are rotatable, respectively, and the ends 19a and 19b on the leg member 11 side.
b can move along the up and down direction in the first long hole 16.

Further, a second long hole 22 is formed in the middle of the first link 19. Both ends 23a and 23b of the second link 23 are inserted into the second long hole 22 and the lower part of the leg member 11 in a state where the second link 23 is bent. Both ends 23a and 23b of the second link 23 are provided with a not-shown preventing structure, respectively.

Next, how to use the second sheet 1 and the auxiliary sheet 7 will be described.

When the auxiliary sheet 7 is not used, the auxiliary sheet 7
Is stored inside the storage box 5, so that the occupant can sit on the second seat 1 located above the storage box 5 as usual (see FIGS. 1 and 3). Further, since the auxiliary sheet 7 is completely stored in the storage box 5, the auxiliary sheet 7 does not exist on the side of the second sheet 1 as in the related art. For this reason, it is possible to secure a wide side space of the second seat 1 and to improve the getting on / off property and the walk-through property for the third seat (not shown).

When the auxiliary seat 7 is used, the seat cushion 2 is rotated forward around the front hinge FH so that the upper portion of the storage box 5 is opened (see FIGS. 2 and 5). ). Since the seat back 3 is fixed to the rear of the storage box 5, the storage box 5
, It is only necessary to rotate the seat cushion 2 to the front side, and the workability is good. When the auxiliary sheet 7 is stored in the storage box 5, the leg members 11
The first link 19 and the second link 23 are all folded along the lower surface of the auxiliary seat cushion 8. At this time, the end 19b of the first link 19 is
The end 23 a of the second link 23 is located at the upper end of the long hole 16.
Are located near the bracket 17 of the second elongated hole 22. That is, the first link 19 and the second link 23 can be folded together with the leg member 11 because the first elongated hole 16 has a length that absorbs a rotation error between the auxiliary seat cushion 8 and the first link 19. This is because the second elongated hole 22 has a length that absorbs a rotation error between the first link 19 and the second link 23.

Next, the auxiliary sheet 7 is lifted out of the storage box 5 and is taken out by rotating outwardly around the side hinge SH as it is (see FIGS. 3 and 5). At this time, the bracket 17 set below the side hinge SH
And the first elongated hole 16 in the middle part of the leg member 11 are connected by a rotatable first link 19, so that the auxiliary seat cushion 8 and the first link 19 are set to the upper side and the lower side, respectively. A joint first link structure is formed, and in conjunction with the removal rotation of the auxiliary sheet 7 from the storage box 5,
The leg member 11 is automatically raised. Further, as the leg member 11 is raised, the end 23a of the second link 23 is pressed against the end of the second elongated hole 22 on the leg member 11 side, and the end 19b of the first link 19 is moved to the first length. The leg member 11 is vertically fixed by being pressed against the lower end of the hole 16.

Accordingly, when the damper 12 provided at the lower end of the leg member 11 abuts on the floor and the lock 14 engages with the striker 13, the auxiliary sheet 7 is held horizontally and the longitudinal movement is restricted. That is, in this embodiment, the end 19b of the first link 19 is engaged with the lower end of the first long hole 16, so that the leg member 11 is in a vertical state and the auxiliary sheet 7 is horizontal. ,
Since the lower end position of the first elongated hole 16 is adjusted, the end 19b of the first link 19 is forced to engage with the lower end of the first elongated hole 16 by the action of the second link 23, and the leg member 11 is always in a vertical state. Therefore, the auxiliary sheet 7
The front and rear position of the slide rail 4 on the second seat 1 side
The lock 14 and striker 13
Can be reliably engaged.

Since the table surface 10 is formed on the back surface of the auxiliary seat back 9 while the auxiliary seat 7 is held horizontally, if the auxiliary seat back 9 is left lying down, it becomes a table. Can be used.
In addition, since the concave portion 10b for the cup holder is also formed on the table surface 10, a drink or the like put in a can or a cup can be placed. Finally, as shown in FIG. 4, if the auxiliary seat back 9 is raised, it becomes possible to sit on the auxiliary seat 7.

According to the above embodiment, the seat back 3 of the second seat 1 is fixed to the rear of the storage box 5,
Although only the seat cushion 2 is configured to rotate forward, the seat back 3 may be attached to the rear of the seat cushion 2 and the seat cushion 2 together with the seat back 3 may be rotated forward. Further, instead of rotating the seat cushion 2 to the front side, a structure that can be removed from the storage box 5 may be adopted. Further, in this embodiment, the example in which the auxiliary sheet 7 is provided on the second sheet 1 has been described, but the auxiliary sheet 7 may be provided on the third sheet or other sheets.

[0032]

According to the present invention, since the bracket set below the side hinge of the storage box and the intermediate portion of the leg member are connected by the first link, the auxiliary seat cushion and the first link are connected. A four-node first link structure having an upper side and a lower side is formed, and the leg member is automatically raised in conjunction with the rotation of the auxiliary sheet taken out of the storage box. Also, the lower part of the leg member below the first elongated hole and the middle part of the first link are connected to the second link.
Since the auxiliary sheet is connected by the link, when the auxiliary sheet is rotated to the outside of the storage box, the end of the second link is pressed against the end of the second long hole, and the end of the first link is connected to the first long hole. The leg member is fixed in a vertical state by being pressed against the lower end of the seat cushion, and the auxiliary seat cushion is held substantially horizontally. A first elongated hole is formed at an intermediate portion of the leg member to absorb a rotation error between the auxiliary seat cushion and the first link, and a rotation of the first link and the second link is provided at an intermediate portion of the first link. Since the second elongated hole for absorbing the dynamic error is formed, the first link and the second link can be stored together with the leg members along the lower surface of the auxiliary seat cushion.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a normal state of a second sheet according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a state in which the seat cushion of FIG. 1 is rotated forward.

FIG. 3 is a perspective view showing a state where the auxiliary sheet of FIG. 2 is taken out and used as a table.

FIG. 4 is a perspective view showing a state in which the auxiliary seat back of FIG. 3 is raised so that the auxiliary seat can be seated.

FIG. 5 is a front view continuously showing a take-out rotation state of the auxiliary sheet of FIG. 4;

FIG. 6 is an exemplary perspective view showing a first link and a second link of FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Second seat 2 Seat cushion 3 Seat back 4 Slide rail 5 Storage box 6 Frame 7 Auxiliary seat 8 Auxiliary seat cushion 9 Auxiliary seat back 10 Table surface 11 Leg member 11a Rotating fulcrum 13 Striker 14 Lock 15, 17 Bracket 16 First length Hole 19 First link 19a, 19b End 22 Second long hole 23 Second link 23a, 23b End FH Front hinge SH Side hinge

Claims (4)

[Claims] An auxiliary seat including an auxiliary seat cushion and an auxiliary seat back foldable with respect to the auxiliary seat cushion is stored in the storage box in an inverted state in a storage box having an upper opening covered by the seat cushion. In use, the auxiliary seat cushion is turned around a side hinge fixed to one end of the auxiliary seat cushion and rotatably supported near the opening side edge of the storage box, From the opened opening, take out the auxiliary seat back together with the auxiliary seat back to the outside of the storage box, and center the leg member folded along the lower surface of the auxiliary seat cushion around the pivot point set at the other end of the auxiliary seat cushion. Vehicle that can hold the auxiliary seat cushion almost horizontally by causing it to be almost vertical A sheet for use, wherein both ends of the first link are rotatably engaged with intermediate portions between the bracket and the leg member set below the side hinge of the storage box, respectively, and the leg member A first elongated hole for absorbing a rotation error between the auxiliary seat cushion and the first link is formed in the middle portion, and a lower portion of the leg member than the first elongated hole and a middle portion of the first link, Both ends of the second link are rotatably engaged with each other, and the first link is located at an intermediate position of the first link.
A second elongated hole for absorbing a rotation error between the link and the second link is formed, and when the auxiliary sheet is rotated to the outside of the storage box, an end of the second link is an end of the second elongated hole. And the end of the first link is pressed against the lower end of the first elongated hole, whereby the leg member is fixed in a vertical state, and the auxiliary seat cushion is held substantially horizontally. Sheet. 2. The vehicle seat according to claim 1, wherein the seat back is fixed to a rear portion of the storage box.
A vehicle seat characterized in that a seat cushion is rotatable forward about a front hinge provided at a front edge of an opening of a storage box. 3. The vehicle seat according to claim 1, wherein a frame is integrally fixed around the storage box, and the frame is supported slidably back and forth via a slide rail. A vehicle seat wherein a lock provided at a lower end of a leg member is selectively engageable with a plurality of strikers along a front-rear direction provided on a floor. 4. The vehicle seat according to claim 1, wherein a table surface is provided on a back surface of the auxiliary seat back.