JP2002240604A - Vehicular seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicular seat that can reliably hold a seat cushion in a seating state without hindering deployment or storage of an auxiliary seat. SOLUTION: A cushion frame 12 has a widthwise extending pipe member (reinforcement) 14 formed at a rear end, and both side parts 8 of a frame 5 have base brackets 10 fixed at rear ends so as to project oppositely into a storage box 4. The pipe member 14 of the cushion frame 12 is placed on tops of the base brackets 10 to hold the seat cushion 2 in a seating state.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a vehicle seat.

[0002]

2. Description of the Related Art Generally, an auxiliary seat installed in a vehicle is composed of an auxiliary seat cushion and an auxiliary seat back, as disclosed in Japanese Utility Model Laid-Open Publication No. 1-145629, for example. A seat cushion is rotatably mounted on the side of the vehicle seat, and when not in use, the auxiliary seat back is folded up and turned upward and stored in a vertical state, and when used, the auxiliary seat cushion is horizontal, By causing the auxiliary seat back, the occupant can be seated.

[0003]

However, according to such a conventional technique, even when stored,
Since the auxiliary seat exists vertically on the side of the vehicle seat, the space on the side of the vehicle seat is reduced.
The side space of this vehicle seat is used when a passenger gets on and off, and the passenger moves to the front and rear seats (walk-through).
Due to the space used for the operation, the space is narrowed, so that the getting on / off property and the walk-through property are reduced.

Therefore, instead of storing the auxiliary seat in a folded state at the side of the vehicle seat, a storage box is provided below a seat cushion of the vehicle seat, the auxiliary seat is stored therein, and the auxiliary seat is stored. A new structure is conceivable in which only when used, the seat cushion of the vehicle seat is rotated forward about the front hinge so that the auxiliary seat is inverted and taken out of the storage box. The storage box is reinforced by a frame except for the rear end, the frame has a U-shape in plan view with an open rear side, and the rear end of the frame is reinforced by a lower end portion of a seat back erected there.

[0005] However, even in such a storage box type auxiliary seat structure, the rear end of the seat cushion, which closes the opening at the upper part of the storage box, is supported from below, and the seat cushion is moved substantially horizontally. The development of a structure for holding the vehicle in a comfortable sitting state has not yet been found. When a reinforcement that supports the rear end of the seat cushion from below, like a normal seat, is bridged between the rear ends of the frame,
To that extent, the opening of the storage box becomes narrow, making it difficult to take in and out the auxiliary sheet. Due to such problems, it is also difficult to commercialize a new storage box type structure as described above.

The present invention has been made by paying attention to such a conventional technique, and a vehicle seat capable of securely holding a seat cushion in a seated state without hindering insertion and removal of an auxiliary seat. Is provided.

[0007]

According to the first aspect of the present invention,
A storage box having an opening at the top is attached to the inside of a U-shaped frame with a rear open side and a front hinge is provided on the opening of the storage box around a front hinge provided on the front part of the frame. A vehicle seat capable of providing an auxiliary seat in a folded state in the storage box and forming a reinforcement along the width direction at a rear end of a cushion frame of the seat cushion, At the rear ends of both side portions of the cushion frame, base brackets protruding in opposition to each other in the storage box are fixed. It is possible to hold.

According to the first aspect of the present invention, since the base brackets are fixed to the rear ends of both side surfaces of the frame, respectively, and are not bridged over the storage box, the auxiliary sheet can be taken in and out of the storage box. It does not get in the way. Even if the base bracket does not have a bridging structure, since the rear end of the cushion frame of the seat cushion is formed with a reinforce along the width direction, both ends of the reinforce are attached to the upper surface of the base bracket. By placing the seat cushion, the seat cushion can be reliably held in a substantially horizontal sitting state, and can withstand the weight of the occupant added to the cushion frame from above.

According to a second aspect of the present invention, when the seat cushion is seated, the auxiliary seat is folded and stored in the storage box in an inverted state, and when the seat cushion is turned forward, the auxiliary seat is provided on the side surface of the frame. It is possible to take out to the outside of the storage box by inverting rotation around the side hinge.

According to the second aspect of the present invention, since the auxiliary seat is turned around the side hinge and turned in and out, the storage box which turns the seat cushion forward to open the opening. Ideal for

According to the third aspect of the present invention, a buffer is provided on the upper surface of the base bracket.

According to the third aspect of the present invention, since the cushioning member is provided on the upper surface of the base bracket, an unpleasant metal collision sound is not generated when the seat cushion is closed, and a rubbing sound is generated even when the seat is used. I will not do it.

The invention according to claim 4 is a pipe member in which the reinforcement is fixed to the rear end of the cushion frame.

According to the fourth aspect of the present invention, since the reinforcement is a pipe member, the structure is simple.

According to a fifth aspect of the present invention, the diameter of the pipe member is 12 mm.

According to the fifth aspect of the present invention, since the diameter of the pipe member is set to 12 mm, it is possible to reliably maintain the seat cushion in a seated state and to reduce the weight of the cushion frame.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS. This embodiment relates to a second seat 1 of a three-row seat in a wagon as a “vehicle”. Two second sheets 1 are arranged side by side on the left and right, but only the right side thereof is shown.

The second seat 1 comprises a seat cushion 2 and a seat back 3, and a storage box 4 is provided below the seat cushion 2.

The storage box 4 has a shape having an opening at an upper portion, and a frame 5 called a riser is fixed around the storage box 4. The frame 5 is for increasing the rigidity of the storage box 4. Specifically, the frame 5 is supported via a slide rail 6 so as to be movable back and forth with respect to the floor. Since the rigidity of the storage box 4 is maintained by the frame 5, even if the storage box 4 is slid back and forth, the storage box 4 is not deformed.

The frame 5 basically has a U-shape in plan view with its front side open and a side part 8 open on both sides, and is connected only by a thin plate 9 on the rear side. The rigidity of the rear side of the frame 5 is obtained by attaching the lower end of the seat back 3. Frame 5
The vertical width is larger than the storage box 4, and the upper part protrudes upward from the storage box 4. Then, at the rear end of the side surface portion 8, the portion protruding above the storage box 4,
An L-shaped base bracket 10 is fixed in an opposed state. The base bracket 10 is fixed so as to slightly protrude into the opening of the storage box 4, and a rubber cushion 11 is provided on the upper surface thereof.

The seat cushion 2 closes the opening of the storage box 4 and rotates forward around a pair of left and right front hinges FH provided at the front end of the frame 5 to move the storage box 4 forward. 4 can be opened. A cushion frame 12 is provided inside the seat cushion 2, and a folded portion 13 is provided at a rear end thereof.
Is formed, and a pipe member 14 as a “reinforce” is welded thereto. The pipe member 14 has a diameter of 1
2 mm, and is provided along the width direction of the rear end of the cushion frame 12. The diameter of 12 mm is a size that can ensure both rigidity and weight reduction of the rear end of the cushion frame 12. Further, a finisher 2a that covers the frame 5 is provided below the seat cushion 2.

As shown in FIG. 6, an end of a skin 15 is locked to the lower end of the folded portion 13, and the skin 15 covers portions other than the lower surface of the seat cushion 2 including the pipe member 14. When the seat cushion 2 is in a seated state, the portion of the pipe member 14 covered with the skin 15
It is mounted on the buffer 11 of the base bracket 10.

An auxiliary sheet 16 is stored in the storage box 4. The auxiliary seat 16 includes an auxiliary seat cushion 17 and an auxiliary seat back 18. One end of the auxiliary seat cushion 17 is
Is fixed to a side hinge SH rotatably supported on the left side edge of the head. Therefore, the auxiliary seat cushion 17
Can be taken out from the opened storage box 4 to the outside together with the auxiliary seat back 18 around the side hinge SH and can be rotated freely.

On the lower surface of the auxiliary seat cushion 17, a leg member 19 having a substantially U-shape that can be raised is mounted in a folded state. This leg member 19
Has a lock 21 which can be engaged with the striker 20 on the floor.
Is also provided.

Next, how to use the second sheet 1 and the auxiliary sheet 16 will be described.

When the auxiliary seat 16 is not used, the occupant sits on the second seat 1 located above the storage box 4 as usual because the auxiliary seat 16 is stored inside the storage box 4. (See FIG. 1). Although the weight of the occupant is added to the seat cushion 2 of the second seat 1, a cushion frame 12 is provided inside the seat cushion 2, and a pipe member 14 provided at the rear end thereof along the width direction is provided with a lower frame 5 of the lower frame 5. Since the seat cushion 2 is placed on the base bracket 10, the seated state of the seat cushion 2 is reliably maintained.

Further, since the auxiliary sheet 17 is completely stored in the storage box 4, the auxiliary sheet
7 does not exist on the side of the second sheet 1. For this reason, it is possible to secure a wide side space of the second seat 1 and to improve the getting on / off property and the walk-through property for the third seat (not shown).

When the auxiliary seat 17 is used, the seat cushion 2 is rotated forward around the front hinge FH to open the upper portion of the storage box 4 (see FIG. 2). Since the seat back 3 is fixed to the rear part of the storage box 4, when the storage box 4 is opened, only the seat cushion 2 needs to be rotated to the front side, and workability is good.

Next, the auxiliary seat 17 is lifted out of the storage box 4 and is taken out of the storage box 4 by pivoting it around the side hinge SH as it is, and the leg member 19 and the auxiliary seat back 18 are respectively raised to be in a seatable state. (See FIG. 3). When the auxiliary sheet 16 is removed from the storage box 4 in this manner, the base bracket 10
Are fixed to the rear ends of both side surfaces 8 of the frame 5, respectively, and do not hinder the structure because they are not bridged over the storage box 4. Further, such a structure in which the auxiliary seat 16 is turned around around the side hinge SH is most suitable for the storage box 4 in which the seat cushion 2 is turned to the front side to open the opening.

Furthermore, since the cushioning member 11 is provided on the upper surface of the base bracket 10, when the auxiliary seat 16 is taken out of the storage box 4 and the seat cushion 2 is returned, the pipe at the rear end of the cushion frame 12 is used. Even if the member 14 strikes the base bracket 10 vigorously, no unpleasant metal collision sound is generated, and no rubbing noise or the like is generated during use of the seat. When the auxiliary sheet 16 is to be returned to its original state, the auxiliary sheet 16 is folded and stored in the storage box 4, but the base bracket 10 does not become an obstacle in this case.

[0031]

According to the present invention, the base brackets are fixed to the rear ends of both sides of the frame, respectively.
The structure does not extend over the storage box, so it does not hinder the auxiliary sheet from being inserted into or removed from the storage box.
Even if the base bracket does not have a bridging structure, since the rear end of the cushion frame of the seat cushion is formed with a reinforcement along the width direction, both ends of the reinforcement are placed on the upper surface of the base bracket. By doing so, the seat cushion can be reliably held in a substantially horizontal sitting state, and can withstand the weight of the occupant added to the cushion frame from above.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a normal state of a second sheet according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a state in which the seat cushion of FIG. 1 is rotated forward.

FIG. 3 is a perspective view showing a state in which the auxiliary seat back of FIG. 2 is raised to enable the auxiliary seat to be seated.

FIG. 4 is an exploded perspective view showing the storage box and the frame of FIG. 2;

FIG. 5 is a perspective view showing a cushion frame of the second seat of FIG. 1;

FIG. 6 is a sectional view taken along the line SA-SA shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Second seat (vehicle seat) 2 Seat cushion 4 Storage box 5 Frame 10 Base bracket 11 Buffer 12 Cushion frame 14 Pipe member (rain force) 16 Auxiliary seat 17 Auxiliary seat cushion 18 Auxiliary seat back FH Front hinge SH Side hinge

Claims (5)

[Claims] 1. A storage box having an opening at an upper portion thereof is mounted inside a U-shaped frame having a rear side opened in a plan view,
A vehicle seat that is provided on the opening of the storage box so as to be rotatable to the front side around a front hinge provided on a front portion of a frame, and that can store an auxiliary seat in the storage box in a folded state. At the rear end of the cushion frame of the seat cushion,
A reinforcement along the width direction is formed, and at the rear ends of both side surfaces of the cushion frame, base brackets protruding in opposite directions in the storage boxes are fixed, and the reinforcement of the cushion frame is provided on the upper surface of the base bracket. A seat for a vehicle, wherein the seat can be placed on the seat cushion to maintain a seated state. 2. The vehicle seat according to claim 1, wherein the auxiliary seat is folded and stored in an inverted state in the storage box when the seat cushion is seated, and the auxiliary seat is folded when the seat cushion is rotated forward. A vehicle seat characterized in that it can be turned around a side hinge provided on a side surface of a frame and taken out of a storage box. 3. The vehicle seat according to claim 1, wherein a buffer is provided on an upper surface of the base bracket. 4. The vehicle seat according to claim 1, wherein the reinforce is a pipe member fixed to a rear end of a cushion frame. . 5. The vehicle seat according to claim 4, wherein the diameter of the pipe member is 12 mm.