JP3489499B2 - Seat for flip-up vehicles - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flip-up type vehicle seat in which a seat cushion can be flipped up to a storage position along a seat back, and more particularly to a locking device therefor. The structural improvement. 2. Description of the Related Art In a van type recreational vehicle (RV) vehicle, three rows of front, middle, and rear seats are often provided in order to allow a large number of people to ride. In this case, the middle and rear seats can be moved forward on the slide rail so that the luggage space behind the rear seat can be expanded according to the load, and the seat cushion of each seat is directed toward the seat back. There is a type that can be moved up to immediately after each of the front and middle seats as a flip-up storage. One example is shown in FIG. In the figure, a bench-type seat 1 is movable in such a manner that seat legs 11 (only one is shown) on both sides are placed on a slide rail R extending in the vehicle front-rear direction. The seat back 13 of the seat 1 can be tilted rearward by operating the reclining lever 15, and the seat cushion 12 is operated by operating the turning lever 6 to release the lock of a lock device (not shown), so that the solid line is solid line. Can be flipped up to a storage position indicated by a chain line along the seat back 13 from the use position indicated by. FIG. 8 shows the structure of a lock device E for flipping up the seat cushion 12 and locking it. In the drawing, a substantially rectangular bracket plate 7 provided on a side surface of a seat cushion 12 is rotatably connected to a seat leg 11 by a shaft member 71 at one corner thereof. Pins 72 and 73 are respectively provided on the bracket plate 7 at an intermediate position between the other corners and one side, and a locking lever 9 which is urged upward by a spring member 8 around a shaft 91 in FIG. The pin 73 is located in the engaging recess 92 of the seat cushion 12, and the seat cushion 12 is positioned at the use position in the horizontal posture. An upper end of the rotating lever 6 is rotatably connected to the shaft member 71. The rotating lever 6 stands upright on the plate surface of the locking lever 9 in an elongated hole 61 formed in the plate surface of the lever 6. The inserted pin 93 is inserted. When the seat cushion 12 is flipped up, the knob 62 is grasped and the rotation lever 6 is rotated backward as shown by the arrow in FIG. Pivots down,
The pin 93 is disengaged from the engagement recess 92. When the seat cushion 12 is flipped up to the storage position as shown by a chain line, the pin 72 reaches the engaging recess 92 instead of the pin 73, and the seat cushion 12 is positioned in the vertical posture. [0006] In the above conventional flip-up type vehicle seat, when the seat cushion 12 is flipped up, it is necessary to push down the turning lever 6 on the side surface of the seat leg 11. There was a problem that both hands were required. Also, depending on the moving position of the seat 1, the gap between the seat side trim and the deck side trim becomes small, so that the turning lever 6
There was also a problem that the operation of was difficult. SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a flip-up type vehicle seat in which a seat cushion can be easily flipped up with one hand regardless of a moving position of the seat. Aim. Therefore, in order to achieve the above object, according to the present invention , the seat cushion (12) can be flipped up from its use position to a storage position along the seat back (13). In the flip-up type vehicle seat, a lock device (E) for locking the rotation of the seat cushion (12) is provided, and an operation lever (2) for selecting locking or unlocking of the lock device (E) is provided on the seat. Operating lever (2) provided on cushion (12)
And the locking device (E) is unlocked in the direction in which the seat cushion (12) is flipped up .
Bracket that rotates together with the seat cushion (12)
A plate (3) and a first leg formed on the sheet leg (11).
One end is freely rotatable in the long hole (14) and the bracket plate (3)
At the other end, and inserted into the first elongated hole (14) at the other end.
Pin (41) provided and seat cushion (12) used
While rotating from the position to the storage position, the pin (41) is moved to the first position.
Reciprocating sliding along one of the long holes (14)
Link arm (4) and operating lever (2)
Operated between the locked position and the unlocked position
The lever body (5) and the lever body (5) are formed and locked.
In the release position, the pin (4) is aligned with the first slot (14).
1) is allowed to move, and the lock position is the first slot.
Intersect with (14) and restrain the pin (41) at the one end.
It comprises a second slot (52). In the present invention,
Operating lever when rotating the seat cushion (12).
-Move (2) to the unlock position. This allows
The second slot (22) coincides with the first slot (14),
The pin (41) can move along the first slot (14).
And the seat cushion (12) can be rotated.
Become. When the seat cushion (12) is
When it is in the storage position, the pin (41) is in the first slot (14).
Located at one end. In this state, lock the operation lever (12).
The second elongated hole (22) moves to the first elongated position.
The pin (41) is restrained by crossing the hole (14), and
The rotation of the seat cushion (12) is restricted. In the present invention , since the operation release direction of the operation lever is coincident with the direction in which the seat cushion is flipped up, the operation of the operation lever with one hand can simultaneously lift the seat cushion. Further, since the operation lever is provided on the seat cushion, even if the seat moves and the gap with the deck side trim or the like becomes small, a satisfactory operation is always ensured regardless of this. In addition, locking that protrudes greatly backward like the conventional
Since no levers are required, the whole system becomes compact and
Requires less installation space. Also, the seat cushion
When the pin is rotated to the use position or the storage position, the pin
Stops further rotation of the seat cushion at the end
Therefore, it is necessary to provide a separate seat cushion stopper.
No need. [0012] The reference numerals in parentheses indicate the correspondence with specific means described in the embodiments described later. FIG. 1 shows an example of a vehicle seat according to the present invention. The seat 1 is of a bench type, and seat legs 11 (only one is shown in the figure) on both sides are placed on a slide rail R extending in the vehicle front-rear direction and can be moved. By operating the operation lever 2 provided on the back surface of the front end of the seat cushion 12, the seat cushion 12 of the seat 1 is raised from the use position indicated by the chain line to the storage position indicated by the solid line along the seat back 13 by the following structure. It is pivotable. The operation lever 2 is a plate-like body having a constant width, and one end thereof is rotatably connected to a shaft 22 of a bracket 21 disposed in the lower surface of the front end of the seat cushion 12 as shown in FIG. As shown by an arrow in FIG. One end of an operation wire 23 from a lock device, which will be described in detail later, is connected to the operation lever 2, and the operation wire 23 is pulled when the operation lever 2 is rotated forward. FIG. 4 shows details of the locking device E of the seat cushion 12. As shown in FIG. In the figure, a substantially triangular bracket plate 3 is provided on a side surface of a seat cushion 12, and the top is rotatably connected to a seat leg 11 by a shaft member 31. A base end of the link arm 4 is rotatably mounted on a plate surface of the bracket plate 3 by a shaft 42, and a pin 41 is provided upright at a distal end thereof. Before this pin 41 is formed on the seat leg 11 (left side in FIG. 4)
It is inserted into the elongated slot 14 and located at the upper end thereof. A lever body 5 is provided, the base end of which is rotatably connected to the shaft member 31 and the distal end 5
1 includes an operation wire 23 which is connected to the operation lever 2 (FIG. 2).
Are connected at one end. The lever body 5 is pivotally moved upward about the shaft member 31 by a spring member 16 disposed between a projection 53 formed in the middle of the lower edge thereof and a locking portion 111 provided on the seat leg 11. It is being rushed. Also,
An elongated hole 52 bent in an L-shape is formed in the middle plate surface of the lever body 5.
The long hole 52 has a shape in which a long side portion 521 matches the long hole 14, and a short side portion 522 extending downward intersects the long hole 14. When the lever body 5 is at the upper rotation end shown in FIG. 4, the long side portion 521 of the long hole 52 is shifted from the long hole 14, and the tip pin 41 of the link arm 4 is ,
After being inserted into the long hole 14, it is located in the short side portion 522 of the long hole that intersects with the long hole 14 and is restricted by the two long holes 14, 52. Thus, the rotation of the seat cushion 12 around the shaft member 31 is locked and the seat cushion 12 is positioned. When the seat cushion 12 is flipped up and rotated, as shown by an arrow in FIG. 3, when the operation lever 2 is rotated forward around the shaft 22, the operation wire 23 is pulled and the spring member 16 is pulled. 5 against the spring force of FIG.
Is rotated to the lower unlocked position as shown in FIG.
Thereby, the long side portion 521 of the long hole 52 of the lever body 2 and the long hole 14 of the seat leg 11 match, and the link arm 4
Of the bracket plate 3 (that is, the seat cushion 12) as shown by the arrow in FIG. 5 while moving the pin 41 toward the lower end of the long hole 14. It can be turned upward around the member 31. When the seat cushion 12 further rotates, the pins 41 move back in the long hole 14 toward the upper end again, and when the seat cushion 12 reaches the uppermost storage position shown in FIG. The pin 41 abuts on the upper end surface of the long hole 14 and further rotation of the seat cushion 12 is prevented. When the operating lever 2 is released in this state, the lever body 5 returns to the upper locking position by the spring force of the spring member 16 as shown in FIG.
Is displaced from the long hole 14 and the short side 52
2 intersects the slot 14 and the pin 4
1 is bound. Thereby, the rotation of the bracket plate 3, that is, the seat cushion 12 around the shaft member 31 is locked and the bracket plate 3 is positioned. When the seat cushion 12 is returned to the use position and rotated, the operation lever 2 is rotated and the lever body 5 is again pulled down to the unlock position below, and the long side portion 521 of the long hole 52 is elongated. 14. According to the present embodiment, when the operation lever 2 is rotated forward around the shaft 22, the lever 5 is rotated to the unlock position, and the seat cushion 12 can be flipped up. . In this case, the rotation direction of the operation lever 2 is clockwise with respect to the shaft body 22 as indicated by an arrow in FIG. 2, which coincides with the flip-up direction of the seat cushion 12. Therefore, the seat cushion 12 can be flipped up at the same time as the operation lever 2 is operated with one hand. Further, since the operation lever 2 is provided on the lower surface of the distal end of the seat cushion 12, even if the seat moves and the gap between the deck side trim and the seat is reduced, a good operation is always ensured regardless of this. Further, in the lock device of the present embodiment, the link arm 4 is provided on the bracket plate 3 in place of the conventional locking lever 9, and the front end pin 41 is connected to the seat leg 11 and the long holes 14, 22 of the operation lever 2. The seat cushion is locked or released by restraining or releasing the restraint, so that the device structure can be made compact. Further, in this structure, when the seat cushion 12 is flipped up and rotated, the tip pin 41 of the link arm 4 comes into contact with the upper end surface of the long hole 14 of the seat leg 11 to restrict the rotation. The seat cushion 12 can be reliably stopped at the predetermined rotation position without providing the stopper. As described above, according to the flip-up type vehicle seat of the present invention, the seat cushion can be easily flipped up with one hand regardless of the moving position of the seat.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side end perspective view of a flip-up vehicle seat showing one embodiment of the present invention. FIG. 2 is a perspective view of a front end portion of a seat cushion when an operation lever is not operated. FIG. 3 is a perspective view of a front end portion of a seat cushion when an operation lever is operated. FIG. 4 is a front view of the seat cushion lock device when the seat cushion is in a use position. FIG. 5 is a front view of the seat cushion lock device when the seat cushion is being rotated. FIG. 6 is a front view of the seat cushion lock device when the seat cushion is in a storage position. FIG. 7 is a side end perspective view of a conventional vehicle seat. FIG. 8 is a front view of a conventional seat cushion flip-up mechanism. [Description of Signs] 1 ... Vehicle seat, 11 ... Seat leg, 12 ... Seat cushion, 13 ... Seat back, 14 ... Long hole, 2 ... Operation lever, 3 ... Bracket plate, 4 ... Link arm, 41
... pins, 5 ... lever bodies, 52 ... long holes, E ... lock devices.

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B60N 2/36 B60N 2/30

Claims (1)

(1) In a flip-up type vehicle seat in which a seat cushion can be flipped up from a use position to a storage position along a seat back, the seat cushion is rotated. A lock device for locking is provided, and an operation lever for selecting locking and unlocking of the lock device is provided on the seat cushion, and an unlocking operation direction of the operation lever matches a flipping direction of the seat cushion , and The locking device is
Bracket plate that rotates with the cushion and seat
The first elongated hole formed in the leg and the bracket plate
One end is rotatably mounted on the shaft, and the other end is in the first elongated hole.
The seat cushion is provided with a pin to be inserted.
While rotating from the use position to the storage position,
Reciprocating sliding along the long hole exiting from one end of the first long hole.
Link arm that is connected to the
Lever operated between the lock position and the unlock position
And formed on the lever body, and in the unlocked position
And allowing the pin to move in accordance with the first slot.
The lock position intersects the first slot and
A flip-up type vehicle seat comprising a second elongated hole for restraining a pin at one end .