JPS6320591Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of the floor extension mechanism of a vehicle equipped with a reclining seat.

The conventional extension mechanism of this type is the first
Extension floor 1 as shown in Fig. 2
The rear edge is pivotally connected to the front edge of the loading platform floor 2 by a hinge 3, and a roller 4 is attached to the back surface near the front edge.
When the seat bag 6 is pushed forward as shown by the chain line in FIG. 2, the roller 4 rolls on the back surface of the seat bag 6 and the groove 7
is fitted and fixed. In the above-mentioned known extension floor mechanism, when the seat back 6 stands up (normal tilt), the extension floor 1 also stands up, making it impossible to use a wide area of the loading platform floor 2, and furthermore, the seat back 6 is moved forward. In this case, the top surface of extension floor 1 is
The upper surface of the loading platform floor 2 protrudes above the back surface of the seat bag 6, which is inconvenient when the extension floor 1 is used as a part of the loading platform floor 2.

This invention makes it possible to tilt the seat bag at a sufficiently large angle when it is tilted backwards, increasing the reclining seat effect, and when the seat bag is normally tilted, the extension floor becomes flush with the cargo bed floor, and When the vehicle is folded forward, the extension floor becomes flush with the loading platform floor and the back of the seat bag, and the objective is to obtain a floor extension mechanism that allows the loading platform floor to be used in a wide and easy-to-use condition. The gist of this is that the rear end of the extension floor is rotatably pivoted to the front end of the cargo bed floor, and when the seat back is folded forward,
In a floor extension mechanism in which the back surface of the seat bag, the extension floor, and the loading platform floor are on the same plane, a stay extending in the front-rear direction is provided on the seat mounting floor surface located below the back surface of the seat bag. The middle part is rotatably pivotally connected via a stay bracket, the front end of the stay is joined to a cam plate attached to the rotating shaft of the seat back, and the rear end is connected to an extension floor to raise the seat back. The extension floor and the cargo bed floor are maintained on the same plane when the seatback is tilted backwards, and the extension floor is tilted forward and downward. It's in the extension mechanism.

The present invention will be described below with reference to the embodiments shown in the drawings.

The upper surface of the extension floor 11 can be made flush with the loading platform floor 12 in front of the loading platform floor 12, and can also be flush with the back surface of the reclining seat 13 when the seat back 14 is folded forward. Pivot the rear end as shown. A stay bracket 17 is fixed to the seat mounting floor surface 16 located below the back of the seat bag 14, and the stay bracket 17 is bent into a substantially dogleg shape so that both ends are positioned upward, and a bracket is attached to the rear end side of the stay bracket 17. The bent portion of the intermediate portion of the stay 18 having the forked portion 18b is rotatably pivoted.

A cam plate 20 is attached to the end of the rotating shaft 19 inserted through the lower end of the seat back 14, and the front end 1 of the stay 18 is attached to the lower surface of the cam plate 20.
Join 8a. The forked portion 18b is fitted into a U-shaped rod 21 rotatably attached to the lower surface of the extension floor 11, and the stay 18 is rotated by the weight of the extension floor 11. The rear end is pushed down. A spring (not shown) is interposed in the stay 18, and the spring force causes the stay 1 to move.
The front end 18a of 8 may be always in contact with the cam plate 20. Therefore, the cam plate 20
When the seat back 14 is in the normal state or in the forward position, the extension floor 11 is moved to the loading platform floor 1 as shown in FIGS. 3 and 5.
2 or flush and horizontal with the back surface of the cargo platform floor 12 and the seat back 14, and when reclining backwards, it is tilted forward as shown in FIG. 6 so as not to interfere with the back surface of the seat back 14. Then, determine its shape.

In the above embodiment, the stay 18 has a dogleg shape, but it is not limited to this, and as long as it extends in the front-back direction and is pivoted at the middle part, it can also be shaped like a straight line or an arc. Often, its shape can be formed freely.

Since the present invention has the above-described configuration, when the seat back 14 is erected and supported in the normal state as shown in FIG. When the stay 18 is held at an angle and the seat back 14 is tilted forward, the stay 18 does not move due to the shape of the cam plate 20, and the extension floor 11, seat back 14, and loading platform floor 12 are flush with each other, and the entire body serves as a loading platform. can be used.

As shown in FIG. 6, when the seat bag 14 is reclined rearward, the back surface of the seat bag 14 pushes down the extension floor 11 so that it can tilt sufficiently rearward. That is, the shape of the cam plate 20 is determined to enable the above-mentioned effect.

As described above, the present invention makes it possible to recline the seat back at a larger angle by configuring the extension floor so that it can be tilted forward, and when the seat back is folded forward, the extension floor becomes a cargo area. The cargo floor can be held flush and horizontally with the floor and seat back, allowing for a wide and easy-to-use cargo platform floor. Even when the seat bag is erected in its normal state, the extension floor is flush with and horizontal to the loading platform floor, so there is an advantage that the loading platform floor can be used more widely.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a known extension floor, Fig. 2 is a side view showing the relationship between the known extension floor and the seat back, Fig. 3 is a side view of the present invention when the seat back is in its normal state, and Fig. 4 is a side view of the seat back. FIG. 5 is a side view of the present invention when the seat bag is folded forward, and FIG. 6 is a side view of the present invention when the seat bag is reclined. DESCRIPTION OF SYMBOLS 11... Extension floor, 12... Loading platform floor, 13... Reclining seat, 14... Seat back, 16... Seat mounting floor surface, 17... Stay bracket, 18... Stay, 19... Rotating shaft, 20
...cam plate.

Claims (1)

[Scope of utility model registration request] A floor in which the rear end of the extension floor is rotatably pivoted to the front end of the cargo bed floor, so that when the seat back is folded forward, the back of the seat back, the extension floor, and the cargo bed floor are on the same plane. In this extension mechanism, the middle part of a stay extending in the front-rear direction is rotatably attached to the seat mounting floor located below the back of the seat back via a stay bracket, and the front end of the stay is attached to the seat mounting floor located below the back of the seat back. It is connected to a cam plate attached to the rotating shaft, and the rear end is connected to the extension floor, so that when the seat back is raised, the extension floor and cargo floor are maintained on the same plane, and the seat back is folded back. A floor extension mechanism characterized in that the extension floor is tilted in a direction in which the extension floor is tilted forward and downward.