JP3968692B2 - Automotive seat - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
In the present invention, the seat back is provided at the rear part of the seat cushion provided on the seat floor so that the seat back can be moved forward, and the seat back is erected on the rear part of the seat cushion and the rear surface is the load on the rear part of the seat floor. The present invention relates to an automobile seat that can be switched to two modes of an overturned state that has been tilted forward so as to become a substantially horizontal expanded loading surface together with a mounting high floor surface.
[0002]
[Prior art]
A seat back is provided at the rear of the seat cushion provided on the seat floor so that the seat back can be moved forward, and the seat back is erected on the rear of the seat cushion and the rear surface is a raised floor for loading at the rear of the seat floor. In addition, automobile seats that can be switched to two modes of the overturned state that has been tilted forward so as to become a substantially horizontal expanded loading surface is widely known from Japanese Utility Model Publication No. 63-64533, etc. This type of conventional automobile seat has a gap between the front part of the seat cushion and the floor of the vehicle body in both the standing state and the lying state of the seat back, and the child puts fingers into this gap. There is a problem that it may be injured and looks bad.
[0003]
[Problems to be solved by the invention]
The problem to be solved by the present invention is to solve the conventional problems as described above, and between the front portion of the seat cushion and the vehicle body floor surface in both the standing state and the lying state of the seat back. An object of the present invention is to provide an automobile seat that enhances safety and improves appearance by preventing gaps.
[0004]
[Means for Solving the Problems]
Automobile seat of the present invention has been made to solve the aforementioned problem, the front legs置用low floor and the intermediate sheet floor and rear with more becomes level difference between load置用higher floor surface of the vehicle body floor provided Mae倒possible seatback behind with back and forth through the link mechanism on the sheet floor movement to provide a seat cushion which can be moved up and down while between while above, the seat back, the rear portion of the seat cushion It is possible to switch between two modes: a standing standing state and a prone state where the rear surface is tilted forward so that it becomes a load receiving surface following the high floor surface for loading and forms a substantially horizontal expanded loading surface by both. in automotive sheets, wherein the seat cushion, while using the front to the apron portion is vertically been front drooping portion with the cushion body of the cushion body, the above-mentioned link mechanism, the seat floor surface of the intermediate described above A first link having both ends pivotally supported at the front and the front of the bottom of the cushion body of the seat cushion, and a second link disposed behind the first link within the seat floor surface. In the standing state of the seat back, the tip is close to the seat floor surface in front of the first link, and in the lying down state of the seat back, the elevation surface connecting the front of the seat floor surface and the low floor surface for footrest is used. The upper part is covered from the front, and in any of the undulations of the seat back, the gap between the front part of the seat cushion and the floor of the vehicle body is eliminated by the front hanging part described above .
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Next, the present invention will be described in detail with reference to the illustrated rear seat, commonly referred to as a retractable RR seat.
Reference numeral 1 denotes a vehicle body floor surface with steps in which a low floor surface 1a for footrest, an intermediate seat floor surface 1b, and a high floor surface 1c for rear loading are respectively connected via inclined upright surfaces. A seat cushion 3 is provided on the above-described seat floor surface 1b of the floor surface 1 so as to be able to move up and down while moving back and forth via the link mechanism 2, and can be moved forward behind the seat cushion 3. A seat back 4 is provided.
[0006]
As the link mechanism 2 described above, as in the first example shown in FIGS. 1 and 2, the first link 2a having the end pivotally supported at the front of the bottom of the seat cushion 3 and the front of the seat floor 1b, and the seat cushion 3 and a rear second link 2b pivotally supporting the end portion behind the seat floor surface 1b, and a hinge pin serving as a reclining center at the front end of the bracket 5 standing on the rear portion of the seat floor surface 1b. Although the seat cushion 3 can be moved up and down while moving back and forth independently as being independent of the up-and-down movement of the seat back 4 pivotally attached to 6, the second example shown in FIGS. Then, the seat cushion 3 is moved up and down while moving back and forth via the link mechanism 2 in conjunction with the raising and lowering operation of the seat back 4, so that the seat cushion 3 On the other hand, the L-shaped member 7 is attached to the rear portion of the seat back 4, while the seat back 4 is pivotally attached to the tip of the bracket 5 erected on the rear portion of the seat floor 1b with a hinge pin 6 serving as a reclining center. As shown in FIG. 3, the seat back 4 is attached to the other end of the second link 2b whose one end is pivotally attached to the hinge pin 6 as described above. When the seat back 4 is tilted forward from the standing state standing at the rear portion of the seat cushion 3, as shown in FIG. 4, in conjunction with this, the link mechanism 2 including the first link 2a and the second link 2b is used. The seat cushion 3 also sinks while moving forward, and the seat back 4 forms a substantially horizontal enlarged loading surface with the back surface serving as a load receiving surface following the high floor surface 1c for loading. When Yuku causing the seat back 4 from the saphenous lying state shown in FIG. 4 in the opposite, the seat cushion 3 in conjunction with this also are configured to float while retracted.
[0007]
In addition, as the seat cushion 3 used in the present invention, a gap is not formed between the front portion of the seat cushion 3 and the vehicle body floor surface 1 in both the standing state and the lying state of the seat back 4. For this reason, a cushion body with a front hanging portion in which a hook-like front hanging portion 3a is suspended from the front end of the cushion body is used, and this is the most important point in the present invention. Note that a gap is formed between the seat cushion 3 and the vehicle body floor 1 not only at the front portion but also at the side portion, but the seat cushion 3 moves back and forth but moves sideways. Therefore, when the gap between the side portions becomes a problem, it may be concealed by providing a resin scuff or the like (not shown).
[0008]
What is configured in this way is usually used as a standing state in which the seat back 4 is erected on the rear portion of the seat cushion 3, and when the rear loading surface is to be widened, the back surface of the seat back 4 is Although it should just be used as a substantially horizontal expansion loading surface by putting it down so that it may become a load receiving surface following the high floor surface 1c for loading, it is the same as that of this kind of conventional vehicle seat. In the present invention, as the seat cushion 3, a cushion body with a front hanging portion in which a front hanging portion 3a for hiding a gap formed between the front portion of the seat cushion 3 and the vehicle body floor surface 1 is hung at the front end. Therefore, in the above-mentioned standing state of the seat back 4, there is no large gap that allows the fingers to enter between the tips of the front hanging portions 3a close to the seat floor 1b. In the above-described lying state of the seat back 4, the front hanging portion 3 a covers the upper part of the inclined upright surface connecting the seat floor surface 1 b and the front footrest low floor surface 1 a from the front, and fingers are inserted between each other. This eliminates the occurrence of a large gap, and the safety is extremely high and the appearance is good.
[0009]
In particular, the seat cushion 3 that is moved up and down while moving back and forth via the link mechanism 2 in conjunction with the undulation operation of the seat back 4 is easy to switch between the two modes and the seat cushion. This is more preferable because the front hanging portion 3a can be moved to the upper part of the inclined surface connecting the footrest low floor surface 1a and the seat floor surface 1b when the foot 3 sinks to avoid interference with the vehicle body floor surface 1.
[0010]
【The invention's effect】
As is apparent from the above description, the present invention provides a seat back provided at the rear portion of the seat cushion provided on the seat floor so that the seat back can be moved forward, and the seat back is erected on the rear portion of the seat cushion and the rear surface. It has the features of the conventional automobile seat that can be switched to two modes of an overturned state that has been tilted forward so that it becomes a substantially horizontal expanded loading surface along with a high floor surface for loading at the rear of the seat floor surface Of course, there is an advantage that safety can be improved by preventing a gap between the front portion of the seat cushion and the vehicle body floor surface in any of the standing state and the lying state of the seat back. is there.
Therefore, the present invention contributes greatly to the development of the industry as an automobile seat that has eliminated the conventional problems.
[Brief description of the drawings]
FIG. 1 is a side view showing a first preferred embodiment of the present invention in a seat back standing state.
FIG. 2 is a side view showing the first preferred embodiment of the present invention with the seat back lying down.
FIG. 3 is a side view showing a second preferred embodiment of the present invention in a seat back standing state.
FIG. 4 is a side view showing a second preferred embodiment of the present invention with the seat back lying down.
[Explanation of symbols]
1 Body floor
1a Low floor for foot placement
1b Seat floor
1c High floor for loading 2 Link mechanism 3 Seat cushion
3a Front drooping part 4 Seat back

Claims (2)

Sheet during in that said front legs置用low floor (1a) and the intermediate sheet floor (1b) and the rear of the luggage置用higher floor surface (1c) and become more stepped vehicle body floor (1) A seat cushion (3) that can be moved up and down while moving back and forth via a link mechanism (2) is provided on the floor surface (1b), and a seat back (4) that can be moved forward is provided behind it. 4) is placed in a standing position at the rear of the seat cushion (3), and the rear side of the seat cushion (3) is tilted forward so that it becomes the load receiving surface following the high floor surface for loading (1c). In the automotive seat that can be switched to the two states of the overturned state that forms the seat cushion, as the seat cushion (3), a cushion body with a front suspension portion having a front suspension portion (3a) suspended from the front end of the cushion body is provided. On the other hand, the link mechanism (2) described above is connected to the front of the intermediate seat floor (1b) and the seat cushion. Down disposed behind the first link (2a) described above in the range of the above-described cushion main body of the bottom first link forward is pivotally supported at both ends (2a) and the seat floor (1b) of (3) as comprising more the second link (2b) has a first link above the upright position of the seat back (4) tip close to the seat floor (1b) in front of (2a), the seat back (4) In the state of lying down, the upper part of the vertical surface connecting the front of the seat floor surface (1b) and the low floor surface for foot placement (1a) is covered from the front , and the above described in any aspect of the undulation of the seat back (4) A vehicle seat characterized by eliminating a gap for a finger to enter between the front part of the seat cushion (3) and the vehicle body floor (1 ) by the front hanging part (3a) .   The vehicle seat according to claim 1, wherein the seat cushion (3) is moved up and down while moving back and forth via the link mechanism (2) in conjunction with the raising and lowering movement of the seat back (4).

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