JP2692546B2 - Vehicle seat - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[Object of the invention]

[0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle seat.

[0003]

2. Description of the Related Art Conventionally, as a vehicle seat of this type,
Those disclosed in Japanese Patent Publication No. 1-21006 and Japanese Utility Model Publication No. 3-18273 are known.

The former vehicle seat includes first and second brackets rotatably supported on the vehicle floor, a front portion rotatably supported by the first bracket and a rear portion second. A seat cushion rotatably supported by the bracket and a seat back fixed to the second bracket, wherein the seat cushion is mounted on the seat cushion by the rotating motion of the first and second brackets. It is possible to obtain a use state in which the seat back is placed upright and a storage state in which the seat back is placed upside down on the seat cushion. In this seat, the seat back and seat cushion in use are held by the vehicle floor and the fixed object by a locking mechanism composed of a claw member provided on the vehicle floor and a tooth portion formed on the second bracket. Composed,
This is done by restricting the rotation of the second bracket by the engagement of the claw member with the tooth portion. Also, the transition from the used state to the stored state is the first step for obtaining the stored state.
And for retracting the seat cushion in the direction of rotation of the second bracket or by tilting the seat back in the direction of rotation of the first and second brackets to obtain the stored state. This has been done by being able to obtain the movement movement of the seat back and seat cushion. still,
The locking mechanism is one in which the claw member engages with the tooth portion due to the input of inertial force to the seat back, and does not always hold the seat back and seat cushion on the floor of the vehicle and a fixed object in use. Therefore, it is not necessary to operate the locking mechanism when changing from the used state to the stored state.

The latter vehicle seat has a first bracket rotatably supported on the vehicle floor, a second bracket rotatably supported on the vehicle floor, and a first front portion. A seat cushion rotatably supported by the bracket and a rear part of which is rotatably supported by the second bracket, and a seat bucket fixed to the second bracket. The rotating operation can obtain a use state in which the seat back is erected on the seat cushion and a stored state in which the seat back is laid down on the seat cushion. In this seat, the seat back and the seat cushion in use are held by the vehicle floor and the fixed object by a locking mechanism disposed between the seat back and the fixed object of the vehicle. Was carried out by engaging with a fixed object of the vehicle. In addition, the transition from the use state to the storage state is performed by releasing the engagement between the first bracket and the floor of the vehicle, rotating the first bracket with respect to the seat cushion, and further moving the seat cushion to the first position. Two
By rotating the second bracket and then rotating the second bracket to obtain a moving operation of the seat bag and the seat cushion for the storage state. Was there.

[0006]

However, in the case of the above-mentioned conventional seat, the former conventional seat shifts from the use state to the storage state only by pulling the seat cushion or tilting the seat back. However, since the locking mechanism does not always hold the seat cushion and the seat back in the use state, it is unstable in holding the seat cushion and the seat back in the use state. It was to leave the element. Further, in the latter conventional device, the locking mechanism always holds the seat cushion and the seat back in use, so this holding is reliable, but the operation of rotating the second bracket, that is, the seat cushion. Since the movement operation of the seat and seat back and the operation for releasing the locking mechanism are different operations,
The operability for shifting from the used state to the stored state was poor.

Therefore, the present invention provides a vehicle seat which has good operability when shifting from the use state to the storage state and which reliably holds the seat cushion and the seat back in the use state. This is a technical issue.

[0008]

Configuration of the Invention

[0009]

The technical means taken in the present invention in order to solve the above-mentioned technical problem is provided between the seat back and a fixed object of a vehicle, and the seat back is engaged with the fixed object. A locking mechanism that enables the seat cushion and the seat back to be held with respect to the floor and the fixed object in a use state, and a storage mechanism that is arranged in front of the seat cushion and is linked to the locking mechanism. Operation for operating the locking mechanism so as to release the holding of the seat cushion and the seat back to the floor and the fixed object by operating the first and second brackets in the rotating direction to obtain the state. And a member.

[0010]

According to the above technical means, the operation of the operating member for activating the locking mechanism so as to release the holding of the seat cushion and the seat back to the floor of the vehicle and the fixed object causes the first and second brackets to rotate. You will have to pull the sheet cushion as you would. Further, the locking mechanism always engages the seat back with the floor and the fixed object in the use state. Therefore, the vehicle seat has good operability when shifting from the use state to the storage state and reliably holds the seat cushion and the seat back in the use state.

[0011]

An embodiment of the present invention will be described below with reference to the accompanying drawings.

As shown in FIG. 1, a seat 2 composed of a seat cushion 21 and a seat back 22 is arranged on a floor 1 in a trunk room which is opened and closed by a back door (not shown) of a vehicle. Has been done.

As shown in FIG. 2, on the floor 1, a pair of stays 3 and a pair of links 4 are rotatably supported by pins 3a and 4a, respectively. The stays 3 are rotatably supported by the pins 3b on both sides of the lower surface of the front portion of the seat cushion 21 via the brackets 23. The link 4 has pins 4b on both sides of the rear portion of the seat cushion 21.
It is rotatably supported by and is fixed to the seat back 22 by a pin 4c. Further, between the seat back 22 and the vehicle trim 6, the seat back 2
A well-known locking mechanism 5 including a latch 5a rotatably supported on the back surface of the second member 2 and a striker 5b fixed to the trim 6 is provided. The locking mechanism 5 is provided when the latch 5a and the striker 5b are engaged with each other.
By restricting the rotation of a by a pole (not shown), the seat back 22 is brought into the locked state in which the trim 6 is engaged, and the pole is operated by the operation handle 7 which will be described later. By allowing the rotation of 5a, the engagement between the latch 5a and the striker 5b is released, and the seat back 22 is disengaged from the trim 6 to be in the unlocked state.

As shown in FIGS. 2 to 4, a rectangular hole 21a is formed in the lower surface of the front portion of the seat cushion 21, and a box-shaped garnish 24 is inserted into the hole 21a. Has been done. The operation handle 7 is slidably arranged in the garnish 24 in the front-rear direction of the seat cushion 21. The operation handle 7 is formed with a protrusion 7a extending into the seat cushion 21 through a through hole 24a formed in the rear wall of the garnish 24.
The operation handle 7 is connected to the projection 7a and the pole of the locking mechanism 5, and is linked to the pole of the locking mechanism 5 via a wire 8 that is routed in the seat cushion 21 and the seat back 22. In this example,
The operation handle 7 is supported by slidably inserting a protrusion 24b formed on the garnish 24 into a long groove 7b formed in the operation handle in the sliding direction. 4b and the pin 4c are mounted on the shoe piece 9 which is fixed.

Next, the operation will be described.

1 and 2 show the use state of the seat 2, in which the seat back 22 is placed upright on the seat cushion 1 at the rear of the seat cushion 21 so that an occupant can sit on the seat. When the seat 2 is in use, the seat back 22 is trimmed by the locking state of the locking mechanism 5.
Is engaged with the seat cushion 21.
Also, the seat back 22 is held with respect to the floor 1 and the trim 6, and the use state of the seat 2 is maintained.

When the seat 2 is in use, as shown in FIG. 7, when an occupant slides the operation handle 7 forward of the seat cushion 22, the locking mechanism 5 is unlocked via the wire 8. Sheet sheet 2
1 and the seat back 22 are released from the floor 1 and the trim 6. When the operation handle 7 is further operated in the same direction, the seat cushion 21 is pulled forward and the stay 3 and the link 4 rotate about the pins 3a and 4a, respectively, and the seat cushion 21 and the seat back 2 are rotated.
2 moves as shown by the arrow in FIG. As a result, as shown in FIGS. 5 and 6, the seat back 22 is in the storage state of the seat 2 which is installed on the seat cushion 21. At this time, the seat cushion 21 and the seat back 22 are accommodated in the recess 1a formed in the floor 1,
The back surface of the seat back 22 is flush with the surface of the floor 1.

When the seat 2 is stored, the seat cushion 21 is moved in the opposite direction to the above-mentioned condition so that the seat 2 is used. At this time, the operation handle 7 does not need to be slid, and the locking mechanism 5 is automatically brought into the locked state by the movement of the seat cushion 21 and the seat back 22.

As described above, when the seat 2 is in use, the seat cushion 21 and the seat back 22 are
The lock mechanism 5 always holds the floor 1 and the trim 6. As a result, the seat cushion 21 and the seat back 22 when the seat 2 is in use.
Will be held securely. Further, the operation of bringing the locking mechanism 5 into the unlocked state is the operation of moving the seat cushion 21 and the seat back 22 as it is. This improves the operability when shifting from the used state of the seat 2 to the stored state.

[0020]

According to the present invention, the locking mechanism for engaging the seat back with the fixed object of the vehicle is provided, and the operating member for operating the locking mechanism is slid in the rotating direction of the first and second brackets. Since the seat cushion is arranged in such a manner that the first and second brackets are operated by operating the operating member that operates the locking mechanism so as to release the holding of the seat cushion and the seat back to the vehicle floor and the fixed object. The seat cushion is pulled so as to move, and the locking mechanism always engages the seat back with the floor and the fixed object in the use state.
As a result, it is possible to improve the operability when shifting from the use state to the storage state and to securely hold the seat cushion and the seat back in the use state.

[Brief description of the drawings]

FIG. 1 is a perspective view of a vehicle in a use state of a vehicle seat according to the present invention.

FIG. 2 is a plan view of a vehicle seat according to the present invention in a use state.

FIG. 3 is an exploded perspective view showing a support structure of an operation handle which is a main component of the vehicle seat according to the invention.

FIG. 4 is a perspective view showing a wire routing structure that links an operating handle, which is a main component of the vehicle seat according to the present invention, with a locking mechanism.

FIG. 5 is a perspective view of the vehicle with the vehicle seat according to the present invention in a retracted state.

FIG. 6 is a plan view of the vehicle seat according to the invention in a stored state.

FIG. 7 is a plan view showing the operation of the vehicle seat according to the present invention.

[Explanation of symbols]

 1 Floor 3 Stay (1st bracket) 4 Link (2nd bracket) 5 Lock mechanism 6 Trim (fixed object) 7 Operating handle (operating member) 21 Seat cushion 22 Seat back

Claims (1)

(57) [Claims] 1. A first and second bracket rotatably supported on a floor of a vehicle, a front portion rotatably supported by the first bracket and a rear portion pivoted on the second bracket. The seat cushion is movably supported, and the seat bucket is fixed to the second bracket, and the seat bucket is fixed on the seat cushion by the rotating operation of the first and second brackets. In a vehicle seat that can be used in an upright position and in a retracted state in which the seat back is placed on the seat cushion, the seat back is disposed between the seat back and a fixed object of the vehicle. A locking mechanism that holds the seat cushion and the seat back against the fixed object and the floor in the use state by engaging the seat cushion and the seat cushion. The floor of the seat cushion and the seat back is arranged by the operation of the first and second brackets in the rotating direction, which is arranged at the front part of the seat cushion and is linked to the locking mechanism, to obtain the stored state. And a manipulating member for actuating the locking mechanism to release the holding of the fixed object.