JPH10278643A - Seat for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle seat of simple mechanism which can be manipulated simply and can hop up a seat cusion forward regardless of the rear space of the seat back. SOLUTION: A seat cushion 1 is installed as capable of rising and falling at the front extremity of the upper part of a seat base whose inside is utilized as an object accommodation part 3, and is allowed to function both as the lid of the accommodation part 3 and a seat. In this seat for vehicle, a reclining metal piece 6 to couple a seat back 2 with the rear of the seat base is equipped with a changeover mechanism 7 to hold the seat back 2 being changed over in two positions, the normal rising position where the bottom of the seat back 2 lies on the rear part oversurface of the seat cushion 1 and exerts a hop-up hindering function for the seat cushion and the rear position where the hop-up hindering function is disengaged.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat base provided with a seat cushion having an interior for storing articles therein, and a seat back mounted to a rear portion of the seat base via a reclining metal fitting as required. The present invention relates to a vehicle seat in which small articles can be stored in an article storage section by flipping up and rising a cushion.

[0002]

2. Description of the Related Art With the diversification of purposes of automobiles, such as application to outdoor leisure, etc., Japanese Patent Laid-Open Publication No. Sho 62-151134 discloses a vehicle seat in which the lower part of a seat cushion is an article storage section capable of storing small articles. Yakai 5-2
No. 6606 and the like.

However, in this type of conventional vehicle seat, the seat cushion is connected to the front end of the seat base via a link mechanism so as to be able to rotate and stand up, and also prevents the seat cushion from jumping up in a normal use state. However, there is a problem in that a complicated lock mechanism for incorporating the lock mechanism is incorporated, and it takes time and effort to incorporate the lock mechanism, and the operation of releasing the lock mechanism becomes troublesome. In addition, as shown in FIG. 6, it is conceivable that the rear upper surface of the seat cushion is pressed by the lower end of the seat back so that the seat cushion does not jump up in a normal use state. To flip the seat cushion forward to open the upper opening of the storage section, first, the reclining mechanism 30 fully tilts the seat back 32 backward to a substantially horizontal state to release the holding by the lower end of the seat back, It is necessary to flip up the seat cushion 31 around the rotation hinge 33 in the front part and raise the seat cushion 31 to the front side. For this reason, it is necessary to have a sufficient rear space to fully tilt the seat back 32 backward to a substantially horizontal state. Move the rear luggage out of the way when the seat back is tilted backwards, or move the seat itself forward. There is a drawback that there are labor such or moved to, also, as a result, significant limitations in the layout on the design of the rear seats there is a problem such as imposed.

[0004]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems and does not require the incorporation of a complicated lock mechanism, and the operation for releasing the lock mechanism is simple.
Moreover, it has been completed with the object of providing a vehicle seat capable of flipping the seat cushion forward irrespective of the rear space of the seat back and increasing the degree of freedom in designing the layout of the seat. is there.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a vehicle seat according to the present invention is provided with a seat cushion on a seat base having an article storage portion therein and a reclining metal fitting at a rear portion of the seat base. A vehicle seat to which a seat back is attached via a seat base, the seat cushion is pivotally attached to the front end of the seat base so as to be able to undulate freely, and a normal state having both functions of a lid and a seat of the article storage section; In the reclining bracket, the lower end of the seat back is located on the upper surface of the rear portion of the seat cushion, and the reclining bracket has a normal position where the function of preventing the seat cushion from jumping up is enabled. Incorporating a switching mechanism capable of switching so as to be held upright at two positions, that is, a rear position where the flip-up preventing function is released. And it is characterized in Rukoto.
Further, the switching mechanism of the reclining bracket in such an invention is not particularly limited, but as described in claim 2, a reclining upper arm is connected to a lower arm attached to a seat base, and the upper arm is connected to the lower arm. The center-foldable arm that can be tilted forward is connected via a hinge mechanism with a lock, and the seatback is attached to the center-foldable arm, or the seatback is attached to the seat base as described in claim 3. A reclining upper arm is connected to the lower arm, and a front link and a lower link, the upper ends of which are connected to the side of the seat back, are connected to the upper arm, and the locking lever engaging part is disengaged from the middle part of the rear link. It is preferable to provide a flexible lock pin because it is easy to manufacture and can be provided at low cost.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. The drawings show a case where the present invention is applied to a front seat of an automobile,
In the figure, reference numeral 1 denotes a seat cushion which is pivotally attached to the upper front end of a seat base having an article storage portion 3 therein.
Is a seat back attached to a rear portion of the seat base via a reclining bracket 6 having a well-known reclining mechanism. The seat cushion 1 is capable of flipping a rear portion forward with a rotating hinge 4 at a front end as a center. On the other hand, a lock groove 5 that engages with the reclining hinge pin 6a is formed in the rear portion of the seat cushion 1, and the above configuration is basically the same as that of a conventional vehicle seat of this type. In the present invention, the reclining metal fitting 6 connecting the seat cushion 1 and the seat back 2 is different from the conventional one. .

That is, in the reclining metal fitting 6 according to the present invention, a normal backrest position where the lower end of the seat back 2 is on the upper surface of the rear portion of the seat cushion 1 to exhibit the function of preventing the seat cushion 1 from jumping up, A switching mechanism 7 that can be switched so as to be held upright at two positions, that is, a rear position where the lifting prevention function is released, is incorporated. Although the specific configuration of the switching mechanism 7 of the reclining bracket 6 is not particularly limited, in the first embodiment shown in FIGS. 1 to 4, a known arm (not shown) is attached to the lower arm 8 attached to the seat base. The upper arm 9 for reclining is connected via a reclining mechanism, and the upper arm 9 is connected to a center-foldable arm 11 which can be tilted forward via a hinge mechanism 10 with a lock. The side is attached. Then, as shown in FIG. 2, the center bending arm 11 is connected to the upper arm 9 of the reclining bracket 6.
Of the center bending hinge pin 13 by the operation of the center bending lever 12 to the front side.
° It is configured so that the seat back 2 can be moved forward independently of the operation of the reclining mechanism of the reclining metal fitting 6.

[0010] As shown in FIG. 3, the seat cushion 1 is usually in the form of a seat and is used for seating. In this case, the seat cushion 1 has a rear upper surface provided in the seat back. Since the seat cushion 1 is fixed at the lower end of the seat 2, the seat cushion 1 does not come off during traveling and is safe, and a comfortable seat state can be maintained without occurrence of backlash or the like.

On the other hand, when the article storage unit 3 is used,
As shown in FIG. 4, only the seat back 2 is tilted forward by approximately 90 ° through the center bending arm 11 by operating the center bending lever 12, and then the reclining mechanism 6 of the reclining bracket 6 is operated in this state. Upper arm 9
Is fully tilted backward, the seat back 2 attached to the center bending arm 11 is held with the angle between the center bending arm 11 and the upper arm 9 kept at approximately 90 °, so that the seat back 2 is normally erected. The seat cushion 1 is not erected at the position, but stands at the rear position where the flip-up preventing function is released. Therefore, the state where the rear upper surface of the seat cushion 1 is fixed at the lower end of the seat back 2 is released. The Rukoto. Then, when the rear side of the seat cushion 1 is flipped up about the rotating hinge 4, the upper end opening of the article storage section 3 is exposed, and thus the article may be used for taking in and out of necessary articles.

Further, a switching mechanism 7 for the reclining fitting 6
As in the second embodiment shown in FIG. 5, a reclining upper arm 9 is connected to a lower arm 8 attached to a seat base, and the upper end is connected to the side surface of the seat back 2. The front link 21 and the rear link 22 may be connected in parallel with their lower ends, and a lock pin 23 may be provided at an intermediate portion of the rear link 22 so as to be detachable from the engaging portion 25 of the lock lever 24.

Also in the case of the second embodiment, the seat cushion 1 is usually in the form of a seat and is used for seating. In this case, the seat cushion 1 has a front link 21 parallel to the rear upper surface. Since the rear link 22 and the rear link 22 do not act as a link by the lock lever 24, the rear link 22 holds the seat back 2 standing upright as a normal backrest position with the lower end located on the upper surface of the rear portion. The seat cushion 1 is safe without being detached, and can maintain a comfortable seat state without occurrence of backlash or the like. However, when the article storage unit 3 is used, as shown in FIG. When the engagement between the engaging portion 25 of the lock lever 24 and the lock pin 23 is released, the front link 21 and the rear link 22 function as parallel links, and the seat back 2 is normally raised. The seat cushion 1 is retracted from the position and stands up to the rear position where the flip-up preventing function is released, and the state in which the rear upper surface of the seat cushion 1 is fixed at the lower end of the seat back 2 is released. When the rear side of the seat cushion 1 is flipped up about the rotation hinge 4, the upper end opening of the article storage section 3 is exposed, and thus the article may be used for taking in and out of necessary articles.

In any case, according to the present invention, the seat cushion 1 corresponding to the lid can be opened and closed without having to fully tilt the seat back 2 backward to a substantially horizontal state as in the conventional case. In addition, a compact design is possible without requiring a large space on the rear side, and it is not necessary to incorporate a complicated lock mechanism, and the operation for releasing the lock mechanism is simple.

[0013]

As is apparent from the above description, the reclining metal fitting has a normal standing position in which the lower end of the seat back is located on the upper surface of the rear portion of the seat cushion and exhibits the function of preventing the seat cushion from jumping up. A switching mechanism that can be switched so that it can be held upright at two positions, the rear position where the flip-up prevention function is released, is not required, so there is no need to incorporate a complicated locking mechanism, and the number of operations for releasing the locking mechanism is simple. In addition, it is possible to provide a vehicle seat in which the seat cushion can be flipped forward irrespective of the rear space of the seat back and the degree of freedom in designing the layout of the seat can be increased. Therefore, the present invention greatly contributes to industrial development as a vehicle seat that has eliminated the conventional problems.

[Brief description of the drawings]

FIG. 1 is an overall perspective view showing an embodiment of the present invention.

FIG. 2 is a perspective view showing a first embodiment of a reclining fitting with a known reclining mechanism omitted.

FIG. 3 is an overall perspective view showing a normal state as a sheet according to the first embodiment of the present invention.

FIG. 4 is an explanatory diagram showing an operation procedure according to the first embodiment of the present invention.

FIG. 5 is an explanatory diagram showing an operation procedure according to the second embodiment of the present invention.

FIG. 6 is an explanatory diagram showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Seat cushion 2 Seat back 3 Article storage part 6 Reclining bracket 7 Switching mechanism 8 Lower arm 9 Upper arm 11 Center bending arm 21 Front link 22 Rear link 23 Lock pin 24 Lock lever

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Makoto Konishi 1 Toyota Town, Toyota City, Aichi Prefecture Inside Toyota Motor Corporation

Claims (3)

[Claims] 1. A vehicle seat in which a seat cushion is provided on a seat base having an interior as an article storage portion and a seat back is attached to a rear portion of the seat base via a reclining metal fitting, wherein the seat cushion is provided at a front end of the seat base. The reclining metal fitting is capable of switching between a normal state in which the article storage unit has both functions of a lid and a seat by swinging up and down, and a standing state in which an upper opening of the article storage unit is opened. A normal standing position in which the lower end of the seat back is on the rear upper surface of the seat cushion and exhibits a function of preventing the seat cushion from jumping up,
A vehicle seat incorporating a switching mechanism capable of switching so as to be held upright at two positions, that is, a rear position where the flip-up preventing function is released. 2. A switching mechanism for a reclining metal fitting, wherein a reclining upper arm is connected to a lower arm attached to a seat base, and a front-reversing middle bending arm is connected to the upper arm via a hinge mechanism with a lock. 2. The vehicle seat according to claim 1, wherein a seat back is attached to the folding arm. 3. A reclining metal switching mechanism, wherein a reclining upper arm is connected to a lower arm attached to a seat base, and a front link and a lower link of which a top end is connected to a side surface of a seat back are connected to the upper arm. 2. The vehicle seat according to claim 1, wherein a lock pin is provided at an intermediate portion of the rear link, the lock pin being capable of engaging with and disengaging from an engagement portion of a lock lever.