JPH0336426Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a frame structure of a thigh support cushion for a vehicle, and is devised to facilitate the installation work.

As shown in FIG. 1, the thigh support cushion is a portion of the seat cushion 1a of the rear seat 1 that supports the thighs of an occupant, and is movable up and down. Therefore, by adjusting the height of the seat cushion 1a,
Passengers can sit comfortably in the seats.
Note that the front portion of the seat cushion 1a is moved up and down by a mechanism not shown.

Such a scissor cushion is required to be easy to install and to operate stably. The present invention satisfies such demands, and its features include a front divided portion and a rear divided portion that form the backbone of the seat cushion, are divided approximately at the center in the depth direction of the cushion, and are connected by a pair of hinges. A vehicle seat mounting structure in which a seat frame having a seat frame is placed on a floor pan having a vertical wall surface and an upper flat surface bulging out in a step shape toward the inside of the vehicle interior, and the seat cushion is attached to the upper flat surface, the above-mentioned The vertical wall has a hanging portion and a flat portion extending along the vertical wall surface and the upper plane, the flat portion is connected to the rear divided portion of the seat frame, and the hanging portion is connected to the vertical wall surface. a bracket formed of a horizontal bracket extending in a direction perpendicular to the extending direction of the flat part of the vertical bracket and connected to the flat part; and a thigh support frame which is pivotally supported and whose distal end portion is movably connected to the front divided portion of the seat frame.

Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

FIG. 2 is a front view showing an embodiment of the present invention,
FIG. 3 is an exploded perspective view thereof. As shown in FIG. 2, at the rear of the floor pan 4 that forms the floor of the vehicle interior in the longitudinal direction of the vehicle, the floor pan 4 is folded upward in order to place a fuel tank (not shown) on the underside of the floor pan 4. A curved step portion 4' is provided. The step portion 4' is formed of a vertical wall surface 4a extending in the vertical direction (vehicle vertical direction) and an upper flat surface 4b extending substantially horizontally from the upper end of the vertical wall surface 4a toward the rear in the longitudinal direction of the vehicle. ing. As shown in FIGS. 2 and 3, the bracket 2 includes a horizontal bracket 2a that extends along the vehicle width direction of the upper plane 4b, and a horizontal bracket 2a that is integrally formed with the horizontal bracket 2a and extends along the longitudinal direction of the upper plane 4b. It is formed of an extending flat part 2c and a vertical bracket 2b bent into an L shape, having a hanging part 2d hanging from the front end of the flat part 2c and extending along the vertical wall surface,
The overall structure is a cross. As will be described later, the bracket 2 is attached to the upper plane 4b of the floor pan 4 with the thigh support frame 5 and the seat frame 6 bolted to the bracket 2 in advance, and the bent portion of the vertical bracket 2b is The bracket 2 is brought into overlapping contact with the corner portion 4c of the floor pan 4, and is further fixed with bolts 3 on the side of the vertical wall surface 4a. Note that a recess 4d is formed in the floor pan 4 and the upper plane 4b to avoid interference with the head of the bolt 8.

Both ends of the thigh support frame 5 are pivotally connected to the horizontal brackets 2a so that the thigh support frame 5 can be raised and lowered. The seat frame 6 has a seat cushion 1
a, and has a front divided part 6b and a rear divided part 6c that are divided into two at approximately the center in the depth direction of the sheet 1, and the front divided part 6b and the rear divided part 6c are folded at the center. A pair of hinges 6 so that it can be bent
They are each connected by a. The front divided portion 6b of the seat frame 6 is connected to the front end of the thigh support frame 5 by bolts 7 so as to be movable relative to the front end, and the rear divided portion 6c of the seat frame 6
The flat part 2c of the vertical bracket 2b is fixed by the bolt 8.
It is fastened to the rear end of the

As described above, in this structure, the seat frame 6
A horizontal bracket 2a is provided which connects the hinge portion of the thigh support frame 5 and the pivot portion of the thigh support frame 5, and the horizontal bracket 2a and the vertical bracket 2b form a cross-shaped bracket 2. Since the bracket 2 has a criss-cross structure and the hinges and pivot parts are supported by the horizontal bracket 2a, the bracket 2 will not be displaced even if a bending reaction force is applied to the bracket 2 due to pitching or rolling of the vehicle body. There is no misalignment of the hinge portion of the seat frame 6 or the thigh support frame 5. As a result, the thigh support mechanism always operates stably.

Furthermore, during on-site installation, the thigh support frame 5 and seat frame 6 are assembled to the bracket 2, and this bracket 2 is fixed to the floor pan 4. For this reason, floor pan 4
There is no need for troublesome work such as tightening bolts from the back side of the
Installation work is extremely easy.

Note that in order to lift the seat cushion 1a, the thigh support frame 5 is pushed up by a mechanism not shown, and the hinge 6 of the seat frame 6 is lifted up.
The front divided portion 6b is rotated while moving relative to the thigh support frame 5 with a as the bending point,
As shown in FIG. 1, the seat cushion 1a is raised.

As specifically explained above with the examples,
According to the present invention, the installation work of the thigh support cushion is facilitated. Furthermore, since the structure is strong and difficult to displace, the thigh support mechanism can always operate stably.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing the thigh support cushion, Fig. 2 is a front view showing an embodiment of the present invention, and Fig. 3 is a front view showing an embodiment of the present invention.
The figure is an exploded perspective view. In the drawing, 1 is a seat, 1a is a seat cushion, 2a is a horizontal bracket, 2b is a vertical bracket,
2 is a bracket, 3, 7, and 8 are bolts, 4 is a floor pan, 5 is a thigh support frame, and 6 is a seat frame.

Claims (1)

[Claims for Utility Model Registration] A seat frame that forms the framework of a seat cushion and has a front divided portion and a rear divided portion that are divided approximately at the center in the depth direction of the cushion and connected by a pair of hinges, In a vehicle seat mounting structure in which the seat cushion is mounted on a floor pan having an inwardly stepped wall surface and an upper flat surface and the seat cushion is attached to the upper flat surface, the vertical wall surface and the upper flat surface are a vertical bracket having a hanging part and a flat part extending along the seat frame, the flat part being connected to the rear divided part of the seat frame, and the hanging part being connected to the vertical wall surface; a horizontal bracket extending in a direction perpendicular to the extending direction of the flat part and coupled to the flat part; a base end pivotally supported by the horizontal bracket; 1. A frame structure for a vehicle thigh support cushion, characterized in that the thigh support frame is connected to the front divided portion of the seat frame so as to be movable relative to the front divided portion of the seat frame.