JP2003002125A - Attaching structure for undertray of seat cushion - Google Patents

Abstract

PROBLEM TO BE SOLVED: To adjust a height of a seat cushion by using lifting equipment for a seat for a vehicle and a front end side of the seat cushion is lifted as a center for a rotation, thus an undertray is easily used by the lifting equipment and a lifting mechanism being used. SOLUTION: Front-rear and right-left links 32, 33 and link brackets 35, 36 are used for the lifting equipment 31. An axis object 37 is used for the right-left link brackets 35 of the front and a front end of the seat cushion 22 is attached to the axis object 47 by brackets 38 so that it can rotate. A rod of a rear 41 is used for the right-left link brackets 36 of the rear. The rod of the rear 41 and a rear end of the seat cushion 22 are connected to each other by a locking mechanism 43 comprising an anchor 45 and a locking member 47 which has a locking pallet 49 so that they can be freely attached and detached. The undertray 51 is attached to upper ends of the front-rear and right-left link brackets 35, 36.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an undertray mounting structure for a seat cushion, and more specifically, a lifter device for adjusting the seat height is provided on the lower surface side of the seat cushion and the seat cushion The present invention relates to a seat cushion under-tray mounting structure provided with a flip-up mechanism capable of jumping up with a front end side as a center of rotation.

[0002]

2. Description of the Related Art Normally, a vehicle seat is designed so that the front-rear position and the vertical height of the seat can be adjusted according to the body shape of an occupant. For example, as shown in FIG. 5, a vehicle seat 1 is attached to a seat cushion 2 on which an occupant is seated so that the seat back can recline, and the load of the vehicle seat 1 is applied to a seat frame 3 of the seat cushion 2.
Is supported by.

The vehicle seat 1 is provided on the floor of the vehicle.
A lower rail 6 having a substantially U-shaped cross section that constitutes the sliding device 5 is attached, and an upper rail 7 is attached to the lower rail 6 so as to be slidable in the front-rear direction of the vehicle. Frame 3
A lifter device 11 capable of varying the seat height is provided between the upper rail 7 and the upper rail 7. The upper rail 7 is formed in a substantially inverted T shape, and the vertical wall 7a is formed to have a high height.

The lifter device 11 has a pair of front and rear left and right links 12 and 13, and the link bracket 1 is provided at the upper ends of the pair of front and rear left and right links 12 and 13, respectively.
5, 16 are provided, and the link brackets 15, 16 are provided.
The front and rear and right and left sides of the seat frame 3 of the seat cushion 2 are fixed by fixing members 17 such as bolts.

In many cases, the inner rail side of the lifter device 11 is a drive link mechanism, and the outer rail side of the lifter device 11 is a driven side link mechanism driven by the drive link mechanism. The front portion of the seat cushion 2 can be moved up and down by rotating the pair of left and right front links 12 manually or electrically, and by rotating the pair of left and right rear links 13, the seat can be rotated. The rear portion of the cushion 2 can be moved up and down.

[0006]

As described above, in the conventional lifter device 11 provided in the vehicle seat 1, the link brackets 15 and 16 are fixed to the upper ends of the pair of front and rear links 12 and 13, respectively. Since the front and rear and right and left of the seat frame 3 of the seat cushion 2 are fixed to the link brackets 15 and 16 by fixing members 17 such as bolts, the front end of the seat cushion 2 cannot be lifted up about the rotation center, and Since the front, rear, left and right link brackets 15 and 16 are each movable, there is a drawback that the under tray cannot be attached at the upper part.

The present invention has been made in view of such circumstances, and the height of the seat cushion can be adjusted by using the lifter device for the vehicle seat, and the front end side of the seat cushion can be rotated. An object of the present invention is to provide an undertray mounting structure for a seat cushion that can be jumped up as a center and can be easily provided with an undertray with a lifter device and a hoisting mechanism provided.

[0008]

In the undercushion mounting structure for a seat cushion according to claim 1 of the present invention, a lifter device for adjusting the seat height is provided on the lower surface side of the seat cushion, and the seat cushion is provided. In an undertray mounting structure for a seat cushion provided with a hoisting mechanism capable of hoisting the front end side of the seat as a center of rotation, the lifter device has front and rear and left and right links, and upper and lower ends of the front and rear and left and right links. A link bracket is provided on the front and left link brackets, and a shaft body is provided on the front left and right link brackets. The front end of the seat cushion is rotatably attached to the shaft body. The rear horizontal rod and the rear end of the seat cushion are detachably connected by a lock mechanism, and the front and rear and left and right link brackets are connected. Characterized in that attaching the tray under the edge.

In the undercushion mounting structure for a seat cushion according to claim 2 of the present invention, the shafts provided on the left and right link brackets of the front portion are rotatably mounted on the front end of the seat cushion by the brackets. Characterize.

According to another aspect of the present invention, there is provided an undertray mounting structure for a seat cushion, wherein a lock mechanism for detachably connecting the rear lateral rod and the rear end of the seat cushion is provided with an anchor provided on the rear lateral rod. And a lock member having a lock claw provided at the rear end of the seat cushion.

In the undercushion mounting structure for a seat cushion according to a fourth aspect of the present invention, the upper flange portion of the under tray is placed on the upper ends of the front and rear and left and right link brackets, and the upper flange portion of the under tray is mounted. It is characterized by being sandwiched between a seat cushion and a link bracket.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of an under tray mounting structure for a seat cushion according to the present invention will be described below.
It will be described in detail with reference to the accompanying drawings. 1 is an exploded perspective view of a seat cushion under-tray mounting structure, FIG. 2 is a perspective view of a seated state of a vehicle seat, FIG. 3 is a perspective view of a seat cushion in a forwardly jumped state, and FIG. It is a sectional view of a seat cushion in the state where it was attached.

1 and 2, the vehicle seat 21 is shown.
Includes a seat cushion 22 and a seat back 23,
The seat frame 24 of the seat cushion 22 is mounted on the slide device 25 via a lifter device 31 described later. The slide device 25 includes a lower rail 26 having a substantially U-shaped cross section and having an opening at an upper portion, which is fixed to a vehicle floor surface.
A substantially inverted T-shaped upper rail 2 that is slidably mounted on the lower rail 26 along the front-rear direction of the vehicle.
7 and 7.

The vertical wall 28 of the upper rail 27
Protrudes upward from the open portion of the upper portion of the lower rail 26. A lifter device 31 is provided on the vertical wall 28 of the upper rail 27. The lifter device 31 is provided with front and rear links 32 and 33 at four positions of front and rear parts which are front and rear and right and left and an upper rail 27 on the inner side and the outer side.

By the operation of the front and rear links 32 and 33, the seat cushion 22 can be lifted up and down by a predetermined stroke to adjust the seat height position. Note that the drive mechanism of the lifter device 31 can have a conventionally known configuration, and therefore a description thereof will be omitted.

Link brackets 35 and 36 are provided on the upper ends of the front and rear links 32 and 33, respectively, and a shaft body 37 made of a pipe bent in a crank shape is provided between the left and right front link brackets 35 and 35. This shaft 37
A lower portion of the front end of the seat cushion 22 is rotatably attached via a pair of left and right brackets 38.

The left and right link brackets 36 on the rear portion,
A rear horizontal rod 41 is provided between the members 36, and a lock mechanism 43 that detachably connects the rear end of the seat frame 24 of the seat cushion 22 to the rear horizontal rod 41 is provided. This locking mechanism 43 is an anchor 45 provided on the rear side rod 41.
The seat cushion 22 and the lock member 47 having the lock claw 49 provided at the rear end of the seat frame 24.

The lock claw 49 of the lock member 47 is formed so as to be engageable with and disengageable from the anchor 45 provided on the rear lateral rod 41.
The lock can be released by an operation piece (not shown). Therefore, as shown in FIG. 2, from the normal seated state, the lock claw 49 and the anchor 45 of the lock mechanism 43 are moved.
By releasing the engagement state of the seat cushion 22 and lifting the rear end of the seat cushion 22 as shown in FIG. 3, the lower portion of the front end of the seat cushion 22 can be rotated about the shaft 37.

By rotating the lower portion of the front end of the seat cushion 22 around the shaft 37, the space below the seat cushion 22 can be used as a storage portion, and the space below the seat cushion 22 can be underutilized. A tray 51 is attached.

The under tray 51 is shown in FIGS.
As shown in FIG. 5, a flange portion 53 is formed along the outer peripheral edge of the upper portion, and the front and rear and left and right link brackets 35, 36 are formed.
The upper flange portion 53 of the under tray 51 is placed on the upper end of the under tray 51, and the upper flange portion 53 of the under tray 51 is connected to the lower end of the seat cushion 22 and the link bracket 35,
It can be clamped by the upper end of 36.

The under tray 51 is a slide device 2
The lower tray 26 fixed to the vehicle floor together with the upper rail 27 of No. 5 is slidably mounted along the front-rear direction of the vehicle, so that the under tray 51 interlocks with the operation of the slide device 25. Further, since the front and rear and left and right link brackets 35 and 36 are integrated, the front and rear movements are interlocked, and the front and rear and left and right link brackets 35 and 36 follow the movement of the under tray 51.

[0022]

As described above, according to the undercushion mounting structure for a seat cushion according to claim 1 of the present invention, the lifter device has front and rear and left and right links, and the upper and lower ends of the front and rear and left and right links. A link bracket is provided on the front and left link brackets, and a shaft body is provided on the front left and right link brackets. The front end of the seat cushion is rotatably attached to the shaft body. Since the rear lateral rod and the rear end of the seat cushion are detachably connected by the lock mechanism and the under tray is attached to the upper ends of the front and rear and left and right link brackets, the height of the seat cushion is adjusted by using the lifter device. In addition, the seat cushion can be lifted up with the front end side of the seat cushion as the center of rotation. Can be provided with a tray under the simple and only state, it is possible to accommodate the luggage or the like by use of the under tray.

According to the undercushion mounting structure for a seat cushion according to a second aspect of the present invention, the shaft bodies provided on the left and right link brackets of the front portion can be pivoted to the front end of the seat cushion by the bracket. Since it is attached, the seat cushion can be simply and quickly jumped up, and the under tray can be used.

Further, according to the undertray mounting structure for a seat cushion according to claim 3 of the present invention, a lock mechanism for detachably connecting the rear lateral rod and the rear end of the seat cushion to the rear lateral rod. Since it is formed from the anchor provided and the lock member having the lock claw provided at the rear end of the seat cushion, the seat cushion can be reliably held in the seated state, and the seat cushion can be simply and quickly jumped up. , Under tray can be used.

Further, according to the undercushion mounting structure for a seat cushion according to claim 4 of the present invention, the upper flange portion of the undertray is placed on the upper ends of the front and rear and left and right link brackets, and the undertray of the undertray is mounted. Since the upper flange portion is sandwiched between the seat cushion and the link bracket, it is not necessary to separately configure a mounting means for the under tray, and the attachment / detachment operation is easy and the convenience of the under tray can be improved.

According to the present invention, the height of the seat cushion can be adjusted by using the lifter device for the vehicle seat, and the front end side of the seat cushion can be lifted up about the turning center. An under tray mounting structure for a seat cushion, which is excellent in economy, can be obtained in which the under tray can be easily provided with the device and the flip-up mechanism provided.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a seat cushion under tray attachment structure according to the present invention.

FIG. 2 is a perspective view showing a seated state of a vehicle seat having an undertray mounting structure for a seat cushion according to the present invention.

FIG. 3 is a perspective view showing a state where the seat cushion of the undertray mounting structure of the seat cushion according to the present invention is jumped up forward.

FIG. 4 is a cross-sectional view of the seat cushion with the under tray of the under cushion mounting structure for a seat cushion according to the present invention attached.

FIG. 5 is an exploded perspective view of a seat cushion using a conventional lifter device.

[Explanation of symbols]

21 Vehicle seat 22 seat cushion 23 seat back 24 seat frame 25 slide device 26 Lower Rail 27 Upper rail 28 vertical wall 31 Lifter device 32 front links 33 Rear link 35 link bracket 36 link bracket 37 Shaft 38 bracket 41 Rear Yokomo 43 Lock mechanism 45 anchor 47 Lock member 49 lock claws 51 Under Tray 53 Flange

Claims (4)

[Claims] 1. A seat cushion provided with a lifter device capable of adjusting a seat height on a lower surface side of the seat cushion, and a hoisting mechanism capable of hoisting a front end side of the seat cushion as a rotation center. In the under tray mounting structure, the lifter device has front and rear and left and right links, link brackets are provided at the upper ends of the front and rear and left and right links, and a shaft body is provided on the left and right link brackets of the front portion. The front end of the seat cushion is rotatably attached to the body, and the rear left and right link brackets are provided with rear lateral rods, and the rear lateral rods and the rear end of the seat cushion are detachably connected by a lock mechanism. And under tray mounting of seat cushion characterized by mounting under tray on top of left and right link brackets Elephants. 2. The undercushion mounting structure for the seat cushion according to claim 1, wherein shafts provided on the left and right link brackets of the front portion are rotatably mounted on the front end of the seat cushion by the brackets. . 3. A lock mechanism for detachably connecting the rear horizontal rod and the rear end of the seat cushion, comprising a lock member having an anchor provided at the rear horizontal rod and a lock member having a lock claw provided at the rear end of the seat cushion. The undercushion mounting structure for the seat cushion according to claim 1 or 2, wherein the undercushion mounting structure is formed. 4. The upper flange portion of the under tray is placed on the upper ends of the front and rear and left and right link brackets, and the upper flange portion of the under tray is sandwiched between the seat cushion and the link bracket. An undertray mounting structure for a seat cushion according to claim 2 or claim 3.