JPH11189082A - Folding seat structure for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To store a seat by horizontally turning a seat cushion and a seat back, so as to facilitate folding of the seat. SOLUTION: A device comprises a slide base 24 arranged in a floor 22 of a miniature van 1, support shaft 52 erected in a position to the side of a car room wall 1a of this slide base 24, circular arc groove 56 provided in the slide base 24 in a prescribed radius with this support shaft 52 serving as the center, turn slider 58 fitted able to slide to this circular arc groove 56, turn plate 26 supported by this turn slider 58 and the support shaft 52, and a folding seat 30 mounted in this turn plate 26. In this way, a seat cushion is erected, in a conduction putting it together with a seat back and by horizontally turning it, the seat cushion can be placed in a storage condition along the car room wall.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a folding seat structure for a vehicle.

[0002]

2. Description of the Related Art Some vehicles have a front seat, a second seat and a third seat in a front row, a second row and a third row in a vehicle cabin, respectively. These second and third sheets generally employ a foldable sheet in order to change the form of the indoor space according to the application. As an example of a folding seat, Japanese Unexamined Utility Model Publication No. Sho 59-110239, entitled "Payer's Vehicle with Three Rows of Seats" has been proposed. As shown in FIG.
2 (the numbers are quoted from those described in the official gazette; the same applies hereinafter) is folded forward by 90 ° and placed on the seat cushion 31, and then the horizontal seat cushion 31 and the seat back 32 around the horizontal rotation axis. Is turned by 90 ° to be along the wall of the cabin.

[0003]

According to the above technique, the seat cushion 31 and the seat back 32 are lifted upward from below against gravity, so that a relatively large lifting force is required. Then, the seat cushion 31 and the seat back 32 folded toward the cabin wall inevitably try to fall down. In order to suppress this, it is necessary to hold the seat on the side of the cabin wall with, for example, a strap for preventing falling. In order to hold a relatively heavy sheet, the strap needs to be thick and long. For this reason, the handling time of the strap increases, and it may take time to fold the sheet.

[0004] Therefore, an object of the present invention is to provide a technique capable of easily folding a sheet.

[0005]

In order to achieve the above object, a first aspect of the present invention is to provide a base disposed on a floor of a vehicle, a support shaft provided at a position of the base close to a cabin wall, and An arc guide provided on the base with a predetermined radius around an axis, a slider slidably fitted to the arc guide, a revolving plate supported by the slider and the support shaft, and a fold mounted on the revolving plate This folding seat is of a type in which the seat cushion side is turned upside down, and the seat cushion is stored along the vehicle cabin wall by turning horizontally with the seat cushion upright and aligned with the seat back. It can be put into a state.

[0006] Since the seat cushion and the seat back are horizontally rotated, there is no need to lift the seat cushion and the seat back against gravity. Therefore, the sheet can be stored with a relatively small force, and the storage of the sheet is facilitated. In addition, since the seat cushion is aligned with the cabin wall, even if the strap that holds the seat cushion loosens and comes off, the seat cushion only leans against the cabin wall. There is no worry about falling into the cabin.

[0007] A second aspect of the present invention is characterized in that the base is a slide base mounted on a rail stretched on the floor of the vehicle so as to be slidable back and forth. Since the seat can be slid back and forth, the seat storage position can be arbitrarily selected. As a result, the space in the vehicle cabin can be changed according to the application.

[0008]

Embodiments of the present invention will be described below with reference to the accompanying drawings. The drawings should be viewed in the direction of reference numerals. FIG. 1 is a perspective view of a vehicle provided with a folding seat structure for a vehicle according to the present invention. In the explanation,
"Left", "right", "front" and "rear" indicate directions or positions as seen by the driver. The vehicle 1 is a vehicle (hereinafter, referred to as a “minivan”) in which an engine (not shown) is mounted in a hood 2 and has no trunk section, and includes a front seat 10 in a first row and a second seat in a second row. (Split bench seat) 15 and a third seat (bench seat) 18 in the third row are arranged indoors. 4 indicates a front wheel and 6 indicates a rear wheel.

The front seat 10 includes a driver's seat captain seat 11 mounted on the right side of the minivan 1 and a passenger's seat captain seat 12 mounted on the left side of the minivan 1.
Consists of Reference numeral 13 denotes a walk-through passage, and the walk-through passage 13 is a passage through which the occupant can pass between the captain sheets 11 and 12. Second seat 15
Is composed of a second seat 16 on the left and a second seat 20 on the right. The second seat 20 on the right side is a folding seat structure for a vehicle according to the present invention.

FIG. 2 is a side view of a folding seat structure for a vehicle according to the present invention. In the folding seat structure 20 of the vehicle, the slide base 24 is slidably mounted on a rail 44 laid on the floor 22 of the minivan so as to be slidable back and forth.
A folding plate 30 is mounted on the turning plate 26, and a folding sheet 30 is attached to the turning plate 26. The folding seat structure 20 of the vehicle will be described in detail with reference to FIG. The folding seat 30 includes a seat cushion 32 in which a rear end 32a is attached to left and right support plates 27, 28 (not shown on the right side) of the revolving plate 26 with bolts 33 and nuts 33a.
Reclining adjuster 37 attached to bolt 28a with bolts 35a, 35a, and reclining adjuster 37
Back 34 attached to bolts 35b, 35b
And a headrest 36 attached to the top of the seat back 34.

The seat cushion 32 has legs 38, 38 (not shown on the back side) and lock claws 39 on the front end 32b side.
Is provided. The lock claw 39 is rotatably attached to the seat cushion 32 with a pin 40, and is pressed in a counterclockwise direction in the figure by a spring member (not shown) to be caught on the locking portion 41 and resist the spring force. It can be removed from the hook 41 by rotating it clockwise. The hook 41 is a member attached to the slide base 24.

FIG. 3 is an exploded perspective view of the folding seat structure of the vehicle according to the present invention. Vehicle folding seat structure 20
Are left and right rails 44 on the floor 22 of the minivan 1,
45, left and right sliders 47 and 48 fitted in the left and right rails 44 and 45, the slide base 24 shown in FIG.
A slide lock mechanism 50 for locking the 4 in a desired position;
A support shaft 52 that stands on the slide base 24 at a position close to the cabin wall 1a, and an arc groove 56 provided on the slide base 24 with a predetermined radius centered on the support shaft 52 and having a center angle of approximately 90 °.
(Arc guide), a revolving slider (slider) 58 slidably fitted in the arc groove 56, and the revolving plate 26 shown in FIG. 2 supported by the revolving slider 58 and the support shaft 52.
, A turning lock mechanism 60 for locking the turning plate 26 at a use position (forward) and a storage position (sideways), and the folding seat 30 described with reference to FIG. 2. Hereinafter, each configuration will be described in detail.

The slide lock mechanism 50 includes an operating rod 5.
1a is rotated clockwise, the slide lock piece 51c is removed from the slide lock claw 51b to release the lock, and the operating rod 51a is returned counterclockwise by the torsion spring 51b to slide the slide lock claw 51b. This is a mechanism for positioning the slide base 24 at a desired position by engaging the lock pieces 51c.

The turning lock mechanism 60 unlocks the turning plate 26 by pulling the operating rod 61 upward, and pushes down the operating rod 61 to a locked position by a compression spring 62 to thereby move the operating rod 61 to the first position. This is a mechanism that inserts into the lock holes 63a and 64a of the second lock plates 63 and 64 to lock the revolving plate 26 between the use position and the storage position.

The support shaft 52 is attached with a lower nut 54a with the lower end inserted into the boss 53 on the slide base 24 side, and attached with an upper nut 54b with the upper end inserted into the boss 55 of the revolving plate 26. Things. The revolving plate 26 is a member that revolves horizontally by about 90 ° from the use position to the storage position when the revolving slider 58 moves from the rear end 56a of the arc groove 56 to the front end 56b about the support shaft 52. The left slider 47 includes a resin slide piece 47a that slides in the left rail 44, and the right slider 48 includes a resin slide piece 48a that slides in the right rail 45. The revolving slider 58 is provided with
A resin slide piece 58a that slides inside is provided.

FIG. 4 is a sectional view of a folding seat structure for a vehicle according to the present invention. In the folding seat structure 20 of the vehicle, the slide base 24 is supported by sliders 47 and 48 fitted to the left and right rails 44 and 45, and the support shaft 52 is located at a position of the slide base 24 close to the cabin wall 1a (shown in FIG. 3). Up,
A swivel plate 26 is supported by the swivel slider 58 and the support shaft 52 fitted in the arc groove 56, and the folding sheet 30 is attached to the left and right support plates 27 and 28 of the swivel plate 26. A state in which the operating rod 61 of the mechanism 60 is pushed down to the lock position by the compression spring 62 to be inserted into the lock hole 63a of the first lock plate 63 and the revolving plate 26 is locked in the use position is shown. 55a is a thrust bearing.

The folding seat structure 20 for a vehicle described above.
The operation of will be described below. FIGS. 5A and 5B are first operation explanatory views of the folding seat structure for a vehicle according to the present invention.
In (a), the lock claw 39 is turned as shown by the arrow and detached from the hook 41. Next, the seat cushion 32 is flipped up as indicated by an arrow around the bolt 33 at the rear end 32a.

In FIG. 2B, the seat cushion 32 that has been flipped up is fixed to the seat back 34 with a strap 66. Next, the operation rod 61 of the turning lock mechanism 60 is pulled upward as indicated by an arrow to unlock the turning plate 26. Next, the flipped-up seat cushion 32 and seat back 34 are horizontally rotated about the support shaft 52 by about 90 ° from the use position to the storage position as indicated by an arrow.

FIGS. 6 (a) and 6 (b) are views for explaining a second operation of the folding seat structure for a vehicle according to the present invention. 4A, the operation rod 61 of the rotation lock mechanism 60 is pushed down to a lock position by a compression spring 62 (shown in FIG. 4) so that the operation rod 61 is locked in the lock hole 6 of the second lock plate 64.
4a (shown in FIG. 3). As a result, the folding sheet 30 can be locked at the storage position. Here, since the slide base 24 can be slid in the front-back direction as indicated by the arrow, the folding sheet 30 can be folded at a desired position in the room. For this reason, an optimal space can be obtained indoors according to the application.

FIG. 2B shows a state in which the folding seat structure 20 of the vehicle is folded from the use state (shown by imaginary lines) around the support shaft 52 toward the side window glass. Since the walk-through passage 68 can pass through between the folding seat structure 20 of the vehicle and the second seat 16 on the left side in the front-rear direction, the driver can, for example, move from the walk-through passage 13 on the front seat 10 side to the walk-through passage. 68
Through the third seat 18 as indicated by the arrow. In addition, the walk-through passages 13 and 6
It is also possible to put a long object such as a ski on 8.

FIGS. 7 (a) and 7 (b) are views for explaining a third operation of the folding seat structure for a vehicle according to the present invention, wherein (a) shows a comparative example and (b) shows an embodiment. In (a), when the seat 100 is folded to the storage position on the side of the passenger compartment wall 101, the seat back 102 is first folded forward by 90 [deg.] And placed on the seat cushion 103. Then, the horizontal seat cushion 103 and the seat back 102 are turned upright by 90 ° to be along the cabin wall 101.

The seat cushion 103 and the seat back 1
02 is lifted from bottom to top against gravity, so a relatively large lifting force is required. Then, the seat cushion 103 or the seat back 10 folded toward the cabin wall 101 side.
2 inevitably tries to fall down. In order to suppress this, it is necessary to fasten the seat 100 folded by, for example, a strap 105 for preventing it from falling down and hold it on the side of the passenger compartment wall 101. The strap 105 is required to be thick and long to hold the relatively heavy sheet 100. For this reason, the strap 105 becomes difficult to handle, and it takes time to fold the sheet.

In (b), the folding seat 30 can be folded to the storage position on the side of the cabin wall 1a simply by turning the seat cushion 32 and the seat back 34 horizontally by 90 °. As a result, there is no need to lift the seat cushion 32 and the seat back 34 against gravity, so that the folding seat 30 can be easily stored with a relatively small force. Further, since the seat cushion 32 is arranged along the cabin wall 1a, even if the strap 66 is loosened and comes off, the seat cushion 32 only leans on the cabin wall 1a. There is no worry that the 32 will fall into the cabin.

In the above embodiment, the folding seat 30 is slidably mounted in the front-rear direction of the vehicle. However, the base 24 may be directly fixed to the floor 22 without sliding. In the above-described embodiment, the description has been given of the case where the arc groove 56 is used as the arc guide. However, the same effect can be obtained by using, for example, an arc rail.

In the above-described embodiment, the example in which the second sheet on the right side is the folded sheet structure 20 has been described, but the second sheet 16 on the left side may be a folded sheet structure. In the above-described embodiment, the left and right sliders 44 and 45 and the turning slider 58 are respectively provided with resin slide pieces 44.
Although the description has been given of the contents attached with a, 45a, and 58a, the slide portion may be constituted by using rollers and balls.

In the above embodiment, the description has been given of the case where the center angle of the arc groove 56 is set to approximately 90 °.
Even if the center angle of the seat cushion 32 is other than approximately 90 °, the seat cushion 32 and the seat back 34 that have been flipped up can be turned to the storage position. Also, the seat cushion 3
The horizontal turning angle of the seat 2 and the seat back 34 need not be limited to only 90 °.

[0027]

According to the present invention, the following effects are exhibited by the above configuration. According to the first aspect, the seat can be stored by horizontally rotating the seat cushion and the seat back.
There is no need to lift the seat cushion and seat back against gravity. As a result, the sheet can be stored with a relatively small force, and the sheet can be stored easily. In addition, since the seat cushion is locked along the cabin wall with the swivel lock mechanism, even if the strap holding the seat cushion is loosened and comes off, the seat cushion only leans against the cabin wall. There is no need to worry about the seat cushion falling into the vehicle interior as in the conventional case.

In the second aspect, since the base is a slide base, the seat can be arbitrarily selected by sliding the sheet back and forth. As a result, the space in the vehicle cabin can be changed according to the application, so that the usability of the vehicle is improved.

[Brief description of the drawings]

FIG. 1 is a perspective view of a vehicle provided with a vehicle folding seat structure according to the present invention.

FIG. 2 is a side view of the folding seat structure of the vehicle according to the present invention.

FIG. 3 is an exploded perspective view of the folding seat structure of the vehicle according to the present invention.

FIG. 4 is a sectional view of a folding seat structure for a vehicle according to the present invention.

FIG. 5 is a first operation explanatory view of the folding seat structure for a vehicle according to the present invention.

FIG. 6 is a second operation explanatory view of the vehicle folding seat structure according to the present invention.

FIG. 7 is a third operation explanatory view of the folding seat structure for a vehicle according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Nimiban (vehicle), 1a ... cabin wall, 20 ... vehicle folding seat structure, 22 ... floor, 24 ... slide base (base), 26 ... revolving plate, 30 ... folding seat, 32 ... seat cushion, 34 ... Seat back, 44: left rail, 45: right rail, 47: left slider, 48: right slider, 52: support shaft, 56: arc guide (arc groove), 58
... Slider (turning slider).

Claims (2)

[Claims] 1. A base arranged on a floor of a vehicle, a support shaft erected at a position close to a cabin wall of the base, an arc guide provided on the base with a predetermined radius around the support shaft,
It comprises a slider slidably fitted on the arc guide, a revolving plate supported by the slider and the support shaft, and a folding seat mounted on the revolving plate. Things,
A folding seat structure for a vehicle, wherein a seat cushion can be stored along a vehicle cabin wall by horizontally turning the seat cushion in a state in which the seat cushion is set up and fitted to a seat back. 2. The folding seat structure for a vehicle according to claim 1, wherein the base is a slide base mounted on a rail stretched on a floor of the vehicle so as to be slidable back and forth.