JP3985470B2 - Vehicle seat - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vehicle seat that can freely adjust the effective length of a cushion.
[0002]
[Prior art]
For example, in an automobile seat or the like, feet are tired when sitting for a long time, and therefore, a resting foot rest portion such as an ottoman is set in front of the seat cushion. However, since the ottoman or the like is in the way when not in use, it is usually necessary to store it in a trunk room or the like, and there is a problem that it is troublesome to take out and set it every use.
[0003]
In view of this, recently, various types of seat cushions have been developed that allow the effective length of the seat cushion to be variable so that the footrest can be formed. For example, a type in which a concave portion is formed in the front portion of the auxiliary seat cushion and an auxiliary cushion member that is slidable forward is embedded in the concave portion, or a type in which the entire seat cushion is slidable forward. There are things.
However, in the former, there is a problem that when the auxiliary cushion member is moved to the front side, there is a gap and a recess at the center of the seat, the ride comfort is deteriorated and the appearance is also deteriorated. In the latter case, there is a problem that the seat cushion actuating device becomes large and the shape of the seating surface immediately below the bottom changes, resulting in poor ride comfort.
[0004]
[Problems to be solved by the invention]
The present invention solves the conventional problems as described above, and can freely adjust the length of the cushion, and there is no recess on the seating surface of the seat, and the seat surface shape just below the bottom is The present invention has been completed for the purpose of providing a vehicle seat that can exhibit excellent sitting comfort and design without changing.
[0005]
[Means for Solving the Problems]
The vehicle seat of the present invention, which has been made to solve the above problems, is provided with a receiving member that can move back and forth at the front end of the seat cushion frame, and has a length that projects from the front end of the receiving member on the upper surface thereof. The front margin of the cushion body projecting from the front end of the receiving member is folded in a U shape toward the back side from the front end of the receiving member, and the receiving member is moved forward and backward to move the front end of the receiving member. By changing the position, the folding position of the cushion body is moved back and forth so that the effective length of the seat cushion is adjusted, and the cushion body has a front and back length of the seat cover rather than the cushion pad. The front end of this seat cover is extended from the front end of the cushion pad, and the front end of the cushion body is connected by connecting the extended end of this seat cover to the rear. After the folding end of the seat is facing backward, the indicator bar and the bracket are integrally attached to the lower part of the receiving member, and the overhanging end of the seat cover is folded back via the indicator bar It is fixed to the bracket, and when the receiving member moves back and forth, the indicator bar and the bracket also move back and forth at the same time .
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
The drawings show the case where the present invention is applied to a rear seat of an automobile, in which 1 is a seat cushion, and a cushion body 2 mounted and supported on a frame is a cushion pad 4 made of a cushion material such as polyurethane foam. In the present invention, the receiving member 10 is provided at the front end of the seat cushion frame so as to be movable back and forth. The cushion body 2 mounted on the seat cushion frame provided with the receiving member 10 is assumed to have a long length that protrudes forward by a considerable length from the front end of the receiving member 10. Further, the front margin 2a of the cushion body 2 protruding from the front end of the receiving member 10 is folded back in a U shape from the front end of the receiving member 10 to the back side. It is set to. When the receiving member 10 is moved forward and backward to change the front end position of the receiving member 10, the folding position of the cushion body 2 moves back and forth, so that the effective length of the seat cushion is adjusted and the receiving member 10 is advanced. When this occurs, the front margin 2a of the cushion body 2 is pushed forward and partly extends to the front side of the front margin 2a, and the extension portion of the front edge of the seat cushion 1 is used as an auxiliary for foot placement. It is comprised so that it can utilize as a cushion part.
[0007]
In the illustrated example, the cushion body 2 has a seat cover 3 longer than the cushion pad 4 and the front end of the seat cover 3 is projected as a projecting cover portion 3a from the front end of the cushion pad 4. Further, the seat cover 3 is formed of a general fabric cloth having a slight stretchability and is connected to the rear side so as to maintain the shape of the tip of the cushion pad 2a bent in a U shape. ing.
Further, in the illustrated example, the indicator bar 5 and the bracket 7 are integrally attached to the lower part of the receiving member 10, and the protruding end portion of the seat cover 3 is folded back via the indicator bar 5 and then fixed to the bracket 7. As a thing. When the receiving member 10 moves back and forth, the indicator bar 5 and the bracket 7 also move back and forth simultaneously, and the folding position of the cushion body 2 moves back and forth. As a result, the effective length of the seat cushion is adjusted, and the receiving member 10 moves forward. When this is done, the front margin 2a of the cushion body 2 is pushed forward and partly extends to the front side of the front margin 2a, and the extension portion of the front edge of the seat cushion 1 is used for foot placement. It is comprised so that it can utilize as an auxiliary cushion part.
[0008]
As shown in the figure, the longitudinally movable receiving member 10 includes a horizontal plate 11 whose front end is a folded edge of the front margin 2a of the cushion body 2, a guide plate 12 that supports the horizontal plate 11 on both sides, The link mechanism 13 is configured to move the horizontal plate 11 back and forth along the guide plate 12. The link mechanism 13 is supported by a holder 13a and moves back and forth, and a rear end of the rod 13b. And a link bar 13c that connects the rear end of the horizontal plate 11 in a U-shape. When the rod 13b is moved back and forth by the operation of a drive source (not shown) such as a motor, the horizontal plate is moved accordingly. 11 is also configured to move back and forth.
[0009]
In addition, the front-end | tip part of the said horizontal plate 11 is covered with solid bodies 11a, such as rubber | gum which has elasticity, for example, and it is trying not to produce the sense of incongruity by having the horizontal plate 11 when putting a leg. In the illustrated example, a receiving member 10 that can move back and forth is provided at the front end of the seat cushion frame so that an auxiliary cushion portion for placing a foot is formed only in the central portion of the seat cushion 1. Of course, the entire front portion of 1 may be forwardly extended.
[0010]
In this configuration, the front end portion of the cushion body 2 forming the seat cushion 1 is bent in a U-shape, and the folded end portion of the seat cover 3 is directed so that the folded end portion of the cushion body 2 faces rearward. While being connected to the bracket 7, the front margin 2a of the cushion body 2 is folded back in a U shape from the front edge of the receiving member 10 provided at the front end of the seat cushion frame so as to be movable back and forth. As shown in FIG. 1, in a normal state, the receiving member 10 is positioned at the rearmost portion, and the front end portion of the seat cushion 1 also maintains a normal seat shape that maintains a normal seating position. When it is desired to form the foot placement portion by changing the height, when the rod 13b is advanced by driving a motor (not shown), the horizontal plate 11 is advanced and the cushion pad is moved as shown in FIG. Bent portion so that the pushed out to the front as a result while gradually decreasing the. As a result, as shown in FIG. 5, an auxiliary cushion portion for placing a foot on the front end portion of the seat cushion 1 is easily formed. Moreover, the tip of the cushion body 2 is stretched by the indicator bar 5 and the bracket 7 that are integrally attached to the lower part of the receiving member 10, and is covered with the seat cover 3 that is always in a tensioned state, so that the shape is lost. In addition, since the seat cover 3 is not wrinkled, an excellent appearance is exhibited.
[0011]
【The invention's effect】
As is clear from the above description, the present invention can freely adjust the length of the cushion, there is no recess in the seating surface of the seat, and the seating surface shape just below the bottom changes It is possible to exhibit excellent sitting comfort and design without having to do so.
Therefore, the present invention contributes greatly to the development of the industry as a vehicle seat that eliminates the conventional problems.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing an embodiment of the present invention.
FIG. 2 is a cross-sectional view showing a state in which an auxiliary cushion portion is formed.
FIG. 3 is a plan view showing an embodiment of the present invention.
FIG. 4 is a perspective view showing a pressing device.
FIG. 5 is a perspective view showing a state in which an auxiliary cushion portion is formed.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Seat cushion 2 Cushion body 2a Front margin part 3 Seat cover 4 Cushion pad 10 Reception member 11 Horizontal plate 12 Guide plate 13 Link mechanism 13a Holder 13b Rod 13c Link rod

Claims (3)

A receiving member (10) which is movable back and forth is provided at the front end of the seat cushion frame, and a cushion body (2) having a length protruding from the front end of the receiving member (10) is mounted on the upper surface of the receiving member (10). The front margin (2a) of the cushion body (2) projecting from the front end of (10) is folded back in a U shape from the front end of the receiving member (10) to the back side, and the receiving member (10) is moved forward and backward. The vehicle seat is configured such that by changing the front end position of the receiving member (10), the folding position of the cushion body (2) is moved back and forth so that the effective length of the seat cushion (1) is adjusted. The cushion body (2) is such that the seat cover (3) is longer than the cushion pad (4) and the front end of the seat cover (3) projects from the front end of the cushion pad (4). This seat cover (3 By connecting the projecting end portion of the cushion body (2) to the rear, the folded end portion of the front margin (2a) of the cushion body (2) is directed to the rear, and an indicator rod ( 5) and the bracket (7) are integrally attached, and the overhanging end of the seat cover (3) is folded back via the indicator rod (5) and then fixed to the bracket (7). When the receiving member (10) moves back and forth, the indicator rod (5) and the bracket (7) also move back and forth simultaneously . A receiving member (10) that can move back and forth is a horizontal plate (11) having a front end as a folding edge of the front margin (2a) of the cushion pad (2), and a guide that supports the horizontal plate (11) on both sides. The vehicle seat according to claim 1, comprising a plate (12) and a link mechanism (13) for moving the horizontal plate (11) back and forth along the guide plate (12) . A link mechanism (13) is a link that connects the rear end of the rod (13b) and the rear end of the horizontal plate (11) in a U-shape supported by the holder (13a) and moves back and forth. The vehicle seat according to claim 2, comprising a bar (13c), wherein the horizontal plate (11) is moved back and forth by the back and forth movement of the rod (13b) .

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