JPS6313955Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a folding structure for a rear seat of a vehicle for both cargo and passenger use, such as a van-type vehicle.

Conventionally, a rear seat shown in FIG. 1 has generally been adopted as a rear seat for a van-type vehicle. That is, the seat cushion 4 of the rear seat 3 installed in the cargo/passenger space 2 of the van-type vehicle 1 has the upper end of the front seat leg 5 fixed to its front lower surface, and the upper end of the rear seat leg 6 to its rear lower surface. is rotatably fixed and supported on the floor 7.
A seat bag 8 is foldably connected to the rear side of the seat cushion 4 by a hinge device 9 with a locking mechanism. The lower end of the front seat leg 5 is rotatably fixed to the floor 7, and the lower end of the rear seat leg 6 is fixed to the floor 7 by a locking mechanism (not shown). Then, as shown by the arrow in the figure, first fold the seat back 8 forward, then rotate the entire rear seat 3 forward around the lower end of the front seat leg 5, and finally fold the rear seat leg 6.
Folding is completed by rotating downward.

However, in such a rear seat 3, the seat cushion 4 and the seat back 8 are connected by a hinge device 9 which requires strength and a complicated structure, which increases the weight and makes it expensive. Further, the front seat leg 5 and the rear seat leg 6 are coupled to the seat cushion 4 at their upper ends, and the rear seat leg 6 is rotatably coupled, so that the rear seat leg 6 is connected to the seat cushion 4 at its upper end. The position of the locking mechanism (not shown) with respect to the floor 7 tends to be misaligned, making precision control difficult. It may also affect the operation of the locking mechanism. Furthermore, since the rear seat legs 6 are connected to the lower surface of the seat cushion 4, the rear seat legs 6 protrude rearward when the rear seat 3 is folded, which may damage luggage or sacrifice cargo space. There was a problem.

The purpose of this invention is to have a simple structure, easy folding operation, and to meet the above-mentioned circumstances.
To provide a rear seat for a van-type vehicle in which a locking mechanism to the floor operates reliably and does not protrude into the luggage compartment space.

This invention will be described below based on embodiments shown in the drawings. In FIGS. 2 and 3, the seat legs 11, 11 of the rear seat 10 are arranged so that the rear ends of substantially L-shaped pipes parallel to each other are attached to the connecting member 11.
The front end is rotatably fixed to the floor 7, and the rear end is placed in contact with the floor 7 so that the L-shaped bent portion forms a chevron shape. The connecting member 11a has a locking mechanism 12 in its approximately central portion, and as shown in an enlarged view in FIG. can be fixed to the floor 7.

The front seat frame 15 is made of a substantially U-shaped pipe material in which the front ends of a pair of armrest members 16, 16 are connected by a connecting member 15a. On the upper surfaces of the armrest members 16, 16, armrests 17, 17 having an L-shaped cross section, which also serve as a stopper for an intermediate link 20, which will be described later, are fixed by appropriate means, and the inner side rearward from the center portion is symmetrically crushed. These are flat surfaces 16a, 16a (see FIG. 7). This front seat frame 15
is the armrest member 1 closer to the connecting member 15a.
6, 16 The outer side is rotatably supported on the slightly rearward inner side of the L-shaped bent portion of the seat legs 11, 11 (referred to as the rotation center A), and the rear side is axially connected to one end of the intermediate link 20 as described later. (The center of rotation is B).

The rear seat frame 18 is made of a substantially U-shaped pipe material in which the upper ends of a pair of seat back stays 19, 19 are connected by a connecting member 18a, and the outer dimension between the seat back stays 19, 19 is equal to the armrest of the front seat frame 15. Members 16, 16
The dimensions are such that it fits inside the . At both lower ends of the seat back stays 19, 19, there are terminal members 2 having bearing holes 25a, 25a, as shown in FIG.
5 and 25 are press-fitted together. This terminal member 2
5 and 25, the rear seat frame 18 is rotatably attached to the connecting member 11a of the seat leg 11.

As shown in FIG. 6, both ends of the pair of plate-shaped intermediate links 20, 20
The armrest members 16, 16 and the seat back stays 19, 19 of the rear seat frame 18,
The armrest member is designed so that it can be in a folded state in which it overlaps a plane including the rear portion of the seat leg 11 (the state indicated by the two-dot chain line in FIG. 10) and in an unfolded state in which it is opened to an appropriate angle (the state in FIGS. 2 and 3). 1
Inside of 6, 16 and seat back stay 19, 19
(see Fig. 7). In this unfolded state, if we imagine a plane including the rotation center A and the rotation center B, the rotation center C is located above the plane by a slight distance l, as shown in FIG. The upper part of the outer edge is armrest 1
The intermediate link 20 is prevented from rotating in the direction in which the center of rotation C moves upward by contacting the stoppers 21, 21 which are also the rear parts of the links 7, 17.

The seat member 22 is an elastic band-shaped member, and is made of canvas material, vinyl leather, etc. as shown in FIGS. 2 and 3, or made of vinyl leather in the form of a lattice as shown in FIG. 11. You can. The front end of the seat member 22 is connected to the front frame 15
The rear end is connected to a connecting member 18a of the rear seat frame 18. The middle part has a substantially U-shape and has both ends locked to the lower ends of seat back stays 19, 19 of the rear seat frame 18 (see FIG. 5). Seat member tensioner 2
3, thereby applying tension to the seat member 22 to form a seat. Note that the seat member tensioner 23 may be connected to the lower end of the seat leg 11. At the lower ends of the seat back stays 19, 19 of the rear seat frame 18,
One end of the coil springs 24, 24, which are engaged with the connecting member 11a of the seat leg 11, abuts from the rear surface and is always biased in the direction of tilting forward.

The rear seat 10 configured as described above has a second
When an occupant sits down in the unfolded state shown in FIGS. 3 and 3, the rear seat frame 1
A moment acts in the direction of folding 8. As mentioned above, in this unfolded state, the center of rotation C
is located above the virtual plane including rotation centers A and B, so a moment is generated that rotates the rear ends of the intermediate links 20, 20 upward, but the outer rear ends of the intermediate links 20, 20 are located above the stopper 21. ,2
1, this rotation is restricted and the rear seat 10 can stably maintain this shape. Further, since the biasing force of the coil springs 24, 24 is applied, the unfolded state will not collapse due to vibrations during traveling even when no occupant is seated.

To fold the rear seat 10 from the state shown in FIGS. 2 and 3, first the armrest members 16, 1
Lift 6 upward. Then, in FIG. 6, the rotation center B moves upward, and the rear seat frame 1
8 tilts forward with the help of the urging force of the coil springs 24, 24 (see FIG. 9). When the intermediate link 20 and the seat back stays 19, 19 overlap, the seat leg 11, the front seat frame 15, and the rear seat frame 18 go through the transition state shown by the two-dot chain line in FIG. . Next, operate the hook 14 of the locking mechanism to release the engagement with the floor 7, lift up the rear of the rear seat, and rotate the entire seat forward around the front end of the seat leg 11.
Move to the final state shown in Figure 0.

In the folded state, this rear seat 10 includes seat legs 11, a front seat frame 15,
Since the rear seat frames 18 overlap in one plane and the seat member 22 is extremely thin, the thickness in the front and back direction is thin in the final folded position, and there is no rearward protrusion, creating a spacious and easy-to-use cargo space. provide. Furthermore, since it is configured as a link device and does not have a hinge device on which stress is concentrated unlike the prior art, the structure is lightweight and simple, and has sufficient strength and rigidity. In addition, seat leg 1
Since 1 is one piece, it is easy to achieve accuracy and there is less risk of it going awry. Therefore, unlike before, the lock mechanism 12
There is no need to worry about malfunction.

As explained above, the present invention is a foldable rear seat that is placed on the floor of a cargo/passenger space of a van-type vehicle, and is formed in a substantially L-shape, the front end of which is rotatably attached to the floor, and the rear seat that is foldable. A pair of left and right seat legs that contact the floor, a nearly U-shaped front seat frame that connects the front ends of a pair of left and right armrest members with a connecting member, and a nearly U-shaped front seat frame that connects the upper ends of a pair of left and right seatback stays with a connecting member. A seat member having front and rear ends attached to a front seat frame connecting member and a rear seat frame connecting member, respectively, and a substantially central portion between the front and rear ends of this seat member and a seat leg or seat back. It has a tensioner that connects with the stay,
The seat back stay is connected at its lower end to the vicinity of the rear end of the seat leg so as to be rotatable in the front-back direction, and the front ends of the pair of left and right armrest members are rotatable in the front-rear direction near the L-shaped bent portion of the seat leg. An intermediate link is connected to the rear inner side of the central portion of the armrest member, and the intermediate link has one end pivoted inside the armrest member and the other end pivoted outside the seatback stay, and is connected to the armrest member. An armrest that also serves as a stopper for the intermediate link is fixed to the upper surface, and the armrest member and the seat back stay are formed in substantially the same plane on the upper surface of the seat leg so that they can be folded and expanded to a predetermined opening degree. As a result, despite its simple structure, it is highly rigid and lightweight, the floor locking mechanism operates stably, and it provides a spacious and easy-to-use cargo space when folded. be.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing the prior art, and FIG. 2 is a rear perspective view of a rear seat showing an embodiment of this invention.
Fig. 3 is a front perspective view, Fig. 4 is an enlarged perspective view showing the lock mechanism, Fig. 5 is an enlarged perspective view of the lower end of the seat back stay, and Fig. 6 is the state shown in Figs. FIG. 7 is an enlarged view of the rear part of the armrest viewed from above; FIGS. 8 to 10 are explanatory views showing the folding process; FIG. 11 is a perspective view of a rear seat in which the seat member is made of vinyl leather in a lattice pattern. 11... Seat leg, 11a... Connection member,
15... Front seat frame, 15a... Connection member, 16... Armrest member, 18... Rear seat frame, 18a... Connection member, 19...
... Seat back stay, 20 ... Intermediate link, 2
2... Seat member, 23... Seat member tensioner (tensioner).

Claims (1)

[Scope of claim for utility model registration] (1) A foldable rear seat placed on the floor of a passenger/cargo space of a van-type vehicle,
A nearly U-shaped front seat that is made up of a pair of left and right seat legs formed in an approximately L shape, whose front ends are rotatably attached to the floor and whose rear ends abut against the floor, and the front ends of a pair of left and right armrest members are connected by a connecting member. A nearly U-shaped rear seat frame in which the frame and the upper ends of a pair of left and right seat back stays are connected by a connecting member, and a seat member whose front and rear ends are attached to the front seat frame connecting member and the rear seat frame connecting member, respectively. and a tensioner that connects a substantially central portion between the front and rear ends of the seat member and a seat leg or a seat back stay, and the seat back stay is rotatable in the front and back direction near the rear end of the seat leg at its lower end. The pair of left and right armrest members have their front ends pivotally supported near the L-shaped bent portion of the seat leg so as to be rotatable in the front-rear direction, and have one end located rearwardly and inwardly from the center portion of the armrest member. An intermediate link that is pivotally supported on the inside of the armrest member and whose other end is pivotally supported on the outside of the seat back stay is connected, and an armrest that also serves as a stopper for the intermediate link is fixed to the upper surface of the armrest member, and the armrest member and the seat are connected to each other. A rear seat for a van-type vehicle, characterized in that a back stay is formed on the upper surface of a seat leg in substantially the same plane so that it can be folded and unfolded to a predetermined opening degree. (2) The rear seat for a van-type vehicle according to claim 1, wherein the pair of seat legs are connected to each other near the rear end. (3) The rear seat for a van-type vehicle according to claim 1, wherein the seat back stay of the rear seat frame is always provided with forward rotational force.