JP2541067Y2 - Vehicle seat - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle seat, and more particularly to an improvement in a reclining structure thereof.

[0002]

2. Description of the Related Art The appearance of a vehicle seat provided with a conventional reclining device is shown in FIG. In the figure, a seat cushion S and a seat back B are rotatably and axially connected on both left and right sides, and one side thereof is provided with a reclining mechanism 1 attached to a connection between a lower hinge 4 and an upper hinge (not shown).
The operation handle 2 protrudes from this.

[0003]

In the above-mentioned conventional structure, since the reclining mechanism 1 and the operation handle 2 are always integrated, the operation handle 2 has to be provided in a narrow gap with the body panel. There was a loss of smooth reclining operation.

In order to further attach the operation handle 2 to the reclining mechanism 1, the whole becomes thicker to the side,
The other side consisting only of the lower and upper hinges 4 and 5 was thin, so it was unbalanced in appearance.

The present invention has been made to solve the above-mentioned problem, and an object of the present invention is to provide a vehicle seat that enables smooth operation by increasing the degree of freedom of setting a reclining operation handle and eliminates imbalance in appearance. Aim.

[0006]

The construction of the present invention will be described. The seat cushion S and the seat back B are rotatably connected to each other on both left and right sides, and a reclining mechanism 1 is attached to one side. In a vehicle seat in which the inclination angle of the seat back B with respect to the cushion S is adjustable, the operation handle 2 of the reclining mechanism 1 is provided on the other side of the seat, and the operation handle 2 and the one-side reclining mechanism 1 are connected to each other. They are connected to each other by connecting rods 3 arranged transversely in the left-right direction.

[0007]

In the above construction, since the operation handle 2 is provided on the opposite side of the seat with respect to the reclining mechanism 1, the degree of freedom of installation of the operation handle 2 is improved, and the operation handle 2 is installed in a relatively large empty space in the vehicle interior. And smooth operation is possible.

Further, by separating the operation handle 2 from the reclining mechanism 1, the thickness on the side on this side is reduced, and on the other side, the thickness is increased by the installation of the operation handle 2, so that the appearance of both sides of the seat is improved. The above imbalance is also improved.

[0009]

Embodiment 1 In FIG. 1, lower hinges 4A and 4B are embedded on both left and right sides of a rear portion of a seat cushion S, and upper hinges 5A and 5B embedded in a lower portion of a seat back B are rotatable in the lower hinges 4A and 4B, respectively. Are axially coupled to An operating handle 2 is provided at the joint between the hinges 4A, 5A on one side, and the hinges 4B, 5B on the other side.
The reclining mechanism 1 is provided at the connecting portion of the above, and these are connected by a connecting rod 3 arranged so as to cross in the left-right direction. The connecting rod 3 is made of a pipe whose middle part is bent, and locking plates 31 and 32 are provided at both ends.

The detailed structure of the side on which the operation handle 2 is provided will be described with reference to FIG. 2 and FIG. 3. A hinge pin 61 is welded and fixed to the lower hinge 4A, and is provided inside and outside the lower hinge 4A. Release arm 62, 63
Is rotatably fitted to the hinge pin 61. The other ends of the release arms 62 and 63 are
The pin 65 passes through the long hole 41 provided in the lower hinge 4A. One end of a coil spring 64 is locked to an edge of the release arm 63 close to the pin connection portion to urge the release arm 63 counterclockwise in FIG.
The base end of the operation handle 2 is fixed to the remaining vertex of the operation handle 3.

The lower end of the upper hinge 5A is rotatably fitted and connected to the outer periphery of a hinge pin 61 projecting outward from the lower hinge 4A via a bush 66, and a nut 67 is connected to a screw portion at the tip of the hinge pin 61. I have. An inner end of the hinge pin 61 is a guide pin 611 having a small diameter. One end opening of the connecting rod 3 is fitted and positioned in the guide pin 611, and the claw 3 provided on the locking plate 31.
11 is engaged with the locking hole 621 of the release arm 62.

Next, details of the side provided with the reclining mechanism 1 will be described with reference to FIGS. A hinge pin 11 is fixedly welded through the lower hinge 4B, and a lower end of the upper hinge 5B is rotatably fitted to and connected to the hinge pin 11. In contact with this lower end, a fan-shaped ratchet 12 having a tooth profile formed on the outer periphery is provided.
Has a center pivotally connected to the hinge pin 11 and is integrally connected to the upper hinge 5B by a pin 13. One end of the pin 13 is a long hole 4 provided in the lower hinge 4B.
2 located within.

Below the ratchet 12 constituting the reclining mechanism 1, there is provided a pole 14 whose one end is pivotally mounted on the lower hinge 4B, and the tooth profile formed on the tip side surface of the pole 14 is the tooth profile of the ratchet 12. Is engaged. Release arms 15 and 16 are provided inside and outside of the ratchet 12 and the pole 14, respectively. The release arms 15 and 16 have one ends rotatably fitted on the outer periphery of the hinge pin 11 and the tip thereof is a lower hinge 4B. Are integrally connected by a pin 17 passing through a V-shaped long hole 43 provided in the V-shape.

An elongate hole 161 is formed in the release arm 16 located outside, and a pin 18 standing on the pawl 14 is inserted through the elongate hole 161. Further, one end of a coil spring 19 is locked at the tip of the release arm 16 to urge the arm 16 clockwise in FIG. Both release arms 15 and 16 have inner and outer E-rings 7
Positioned on the hinge pin 11 by 1,72.

Small-diameter guide pin 1 at inner end of hinge pin 11
11, the other end opening of the connecting rod 3 is fitted and positioned,
The claw portion 321 provided on the locking plate 32 is engaged with the locking hole 151 of the release arm 15. The upper hinge 5B is a strong spiral spring 5 having one end locked thereto.
1 (FIG. 4) to the upright position.

In the vehicle seat having the above structure, when the operating handle 2 (FIG. 2) is pulled up, the release arm 62,
2 rotates clockwise in FIG. 2 around the hinge pin, and the connecting rod 3 is rotated via one locking plate 31 (FIG. 3). The rotation of the connecting rod 3 is performed through the other locking plate 32 (FIG. 5).
(FIG. 4), which are rotated counterclockwise in FIG. When the release arm 16 rotates, the pin 1
8 is pushed by the peripheral edge of the long hole 161 and moves obliquely downward along the long hole 43, the tip of the pole 14 is separated from the outer periphery of the ratchet 12, the engagement of the tooth shape is released, and the rotation of the upper hinge 5B becomes possible. .

When the operating handle 2 is released, the coil spring 1
Release arms 15, 16, 62, 63
Is returned, the tip of the pawl 14 approaches the outer periphery of the ratchet 12, and the teeth are engaged with each other, and the upper hinge 5B is positioned.

[0018]

Embodiment 2 The coupling structure between the lower hinge 4A and the upper hinge 5A may be as shown in FIG. In the figure, a T-shaped nut 82 is fixed through the lower hinge 4A, and the tip of a bolt 81 screwed into the nut 82 is connected to the guide pin portion 8.
11 is located in the end opening of the connecting rod 3.

According to such a structure, when the end opening of the connecting rod 3 is fitted to the guide pin portion 811, the lower hinge 4 A can be easily fitted without deforming it outward.

[0020]

As described above, according to the vehicle seat of the present invention, the operating handle can be separated from the reclining mechanism and provided on the opposite side of the seat, so that the degree of freedom of installing the operating handle is improved, and the vehicle interior is compared. It can be installed in a wide open space for smooth operation. Also, the apparent imbalance between the left and right hinge joints is eliminated.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention.

FIG. 2 is a side view of a hinge connection part.

FIG. 3 is a sectional view taken along line III-III in FIG. 2;

FIG. 4 is a side view of a hinge connection part.

FIG. 5 is a sectional view taken along line VV of FIG. 4;

FIG. 6 is a cross-sectional view of another embodiment of the present invention;

FIG. 7 is a rear perspective view of a seat showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Reclining mechanism 11 Hinge pin 12 Ratchet 14 Paul 15 and 16 Release arm 2 Operation handle 3 Connecting rod 31 and 32 Locking plate 4A, 4B Lower hinge 5A, 5B Upper hinge 61 Hinge pin 62, 63 Release arm

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References Real opening 48-46906 (JP, U) Real opening 47-7826 (JP, U) Real opening 4-51250 (JP, U) Real opening 1962 20541 (JP, U) Actually open 63-47744 (JP, U)

Claims (1)

(57) [Scope of request for utility model registration] 1. A vehicle seat in which a seat cushion and a seat back are rotatably and axially connected on both left and right sides, and a reclining mechanism is provided on one side to adjust a tilt angle of the seat back with respect to the seat cushion. 3. The vehicle seat according to claim 1, wherein an operation handle of the reclining mechanism is provided on the other side, and the operation handle and the reclining mechanism on the one side are connected to each other by connecting rods arranged transversely in the left-right direction.