JPS60226332A - Car seat - Google Patents

Abstract

PURPOSE:To secure such a face-to-face seat as being simple in structure and each of operation, by constituting a seat cushion and a seat back with both movable and fixed parts. CONSTITUTION:A seat cushion 2 and a seat back 3 of a rear seat 1 are sectioned in two parts in symmetry at a seat a seat breadthwise central part, and divided into fixed parts 5, 8 and movable parts 6, 9, respectively. The movable part 6 is of L-shaped form, and each end part of one side leg is rotatably pivoted on the fixed part 5 while each end part on the other comes into contact with each other at a breadthwise central part of the seat cushion 2. The movable part 9 is also of L-shaped form, and each end part of one side leg is rotatably pivoted on the fixed part 8 while each end part on the other comes into contact with each other at a breadthwise central part of the seat back 3.

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field of the Invention) The present invention relates to a seat for a vehicle such as an automobile, and more particularly to a seat for a vehicle that can be used as a seat for a seat that can be easily operated.

(Prior Art and its Problems) Conventionally, in automobiles such as wagons and pan-type cars, there has been a desire for a vehicle seat configuration that can be converted to a two-person seat during breaks and the like. For this reason, a configuration has been developed in which the front seat is turned backward so that it faces the V-seat. However, all of these conventional vehicle seats have complicated mechanisms and are cumbersome to switch, and the reality is that no one with a simple mechanism that can be easily switched has yet been developed. there were.

(Object of the Invention) In view of the above points, an object of the present invention is to provide a vehicle seat that has a simple mechanism and is easy to operate.

(Structure of the Invention) The vehicle seat of the present invention includes a seat cushion that supports the buttocks and thighs of an occupant, and a backrest that is located behind the seat cushion and can be tilted until it becomes substantially horizontal with respect to the seat cushion. The seat back forms a seat for a plurality of occupants, and by covering the seat back as described below, it can be used as a seat for two or more occupants as required.

That is, in the vehicle seat of the present invention, the seat cushion and the seat back are each divided into left and right parts at the center in the width direction, and each of the left and right parts of the seat cushion is divided into a fixed part and a movable part. The movable parts have an abbreviated shape, and the two left and right movable parts are one of them.
The ends of one leg of the letter shape are rotatably pivoted near the outer edge of the front edge of the fixed portion, and the other leg of the letter shape is normally placed back to back in the center of the width direction of the seat cushion. are in contact with each other. On the other hand, each of the left and right portions of the seat back is also divided into a fixed portion and a movable portion when the seat back is tilted approximately horizontally with respect to the seat cushion, and the movable portion has an abbreviated shape. The movable part has one end of one leg of the 1-shape rotatably pivoted near the outer edge of the upper edge of the fixed part, and the other leg of the 1-shape is normally pivoted in the width direction of the seat back. They are in contact with each other back to back at the center. With the above structure, when the seat back is tilted substantially horizontally with respect to the seat cushion, the four movable parts in total are rotated and raised to form a two-person seat for four people. This is what I did. With this configuration, the vehicle seat of the present invention can be used as a normal rear seat for multiple people (usually three people) during normal times, and as needed, can be used as a horizontal seat for four people by operating the movable parts. can be used.

Further, in the present invention, the movable portion of the seat cushion is supported from below in normal times, and the movable portion is rotated.
To ensure that the seat can be held in normal conditions and to make the use as a seat more convenient by providing a table on the floor of a vehicle body that can be raised to a predetermined height when used as a seat for two people when raised up. I can do it.

Furthermore, in the present invention, it is preferable that a shelf be provided on the rear surface of the seat back so that the shelf serves as a supporting leg to support the seat when the seat back is tilted substantially horizontally with respect to the seat cushion as described above.

(Embodiments of the Invention) Hereinafter, details of the configuration of the present invention will be described based on embodiments shown in the drawings.

FIG. 1 is a perspective view showing a vehicle rear seat to which the present invention is applied. The A7 seat 1 is designed as a seat for three people, and includes a seat cushion 2 that supports the buttocks and thighs of the passenger, and a seat cushion 2 that is located behind the seat cushion 2 and that supports the buttocks and thighs of the passenger. The seat back 3 forms a backrest that can be tilted until it becomes approximately horizontal. This rear seat 1 has a seat back 3 that is tilted by a reclining device 4, like a normal reclining seat.

In the present invention, the seat cushion 2 and the seat back 3 are each divided into left and right portions at the center in the width direction of the seat, as shown in the figure.

The left and right portions of the seat cushion 2 are each divided into a fixed portion 5 and a movable portion 6.

This movable part 6 is formed in an oval shape, and the two left and right movable parts 6 can each rotate the end of one leg of the one-shape near the outer end of the front edge of the fixed part 5. Supported by-
There is C. Both the fixed part 5 and the movable part 6 are formed by covering the respective frames 5a and 6a with padding material and skin material, and as shown in FIG. Near the end, the end of one leg of the frame 6a, which is a movable part, is rotatably supported by a pin 7. The other legs of the two movable parts 6 are in contact with each other back to back at the widthwise central portion of the seat cushion 2 .

On the other hand, as described above, the seat back 3 is tilted until it is approximately horizontal with respect to the seat cushion 2 (the state indicated by the chain line in FIG.
As in the case of , it is divided into a fixed part 8 in the horizontally tilted state and a movable part 9 formed in an abbreviated letter shape, and the two left and right movable parts 9 are at the end of one leg of the letter shape. The two legs are each rotatably supported near the outer end of the upper edge of the fixed part 8, and the other leg of the letter 1 is in contact with each other at the center of the seat back 3 in the width direction.

In order to use the vehicle seat of the present invention constructed as described above as a seat for two people, first the seat back 3 is tilted until it becomes substantially horizontal with respect to the seat cushion 2. Next, the two left and right movable parts 6 of the seat cushion 2 and the two left and right movable parts 9 of the seat back 3 are rotated relative to the fixed parts 5 and 8, respectively, to stand up. Then,
The seat is in the state shown in FIG. 3, with the fixed parts 5 and 8 serving as the seating parts and the movable parts 6 and 9 serving as the backrest (facing sideways, perpendicular to the normal orientation of the seat).
Two seats for four people are formed. FIG. 4 is a perspective view of the seat shown in FIG. 3 in a state where it is formed, as seen from the front of the vehicle compartment.

The mechanism for rotating the movable parts 6 and 9 with respect to the fixed parts 5 and 8 and locking them in a desired position is as follows:
For example, a mechanism as shown in FIG. 5 is used. In the figure, a movable frame 6a of the seat cushion 2 is pivotally supported by a pin 7 to a fixed frame 5a. A gear 10 is fixed to the fixed part frame 5a concentrically with the pin 7, and a latch piece 11 having teeth at its tip that meshes with the gear 10 is pivotably supported 12 on the frame 6a. . The latch piece 11 is biased in the meshing direction by a spring 13, and a knob 14 is fixedly attached near the teeth of the latch piece 11. It stands out.

When the knob 14 is moved by hand along the elongated hole, the spring 1
3-a] The locking piece 11 disengages from the gear 10 against the force. In this state, when the frame lower a (therefore the movable part 6 of the seat cushion 2) is manually rotated around the pin 7 and the knob 14 is released at the desired position, the latch piece 11 engages with the gear 10, and at that position. A lock is made. (A similar mechanism may be used in the case of the seat back 3.) A shelf 15 is provided at the rear of the left and right fixed portions 8 of the seat back 3 as shown in FIG. When the seatback 3 was tilted to
This ceiling 15 serves as a support leg for supporting the fixed portion 8. This shelf 15 can also be used as a shelf for placing items as shown in Fig. 6 during normal times (when not used as a seat for two people), but when it is not needed, it can be folded down and stored on the back of the fixed part 8. Therefore, it is supported by a foldable support arm 16.

FIG. 7 is a diagram showing details of this shelf support arm 16. The support arm 16 consists of two links 16a and 16b connected by a pin 17.

The ends of the links 16a, 16b are rotatably attached to the rear of the fixed portion 8 and the front end of the shelf 15, respectively. When the support arm 16 is extended (as shown), the concave portion 18a of the link 16a and the convex portion 18b of the link 16b are engaged and the C-extended state is maintained, and the shelf 1 is folded.
5, link 16a centering on pin 17.
, 16b rotate with respect to each other (arrows shown), and the recess 19a of the link 16a and the protrusion 19b of the link 16b engage with each other to maintain the folded state.

Incidentally, an engagement pin 22 is provided on the side surface of the link 16 and extends substantially at right angles, and the engagement pin 22 is engaged with a plurality of engagement portions 23a fixed to the side portion of the fixing member 8. By selecting the position of the engaging portion 23a, the inclination of the shelf 15 can be adjusted.

Further, FIG. 8 shows a table provided on the vehicle body floor according to the present invention, and the table 20 is urged upward by a means such as a gas spring installed in the supporting legs 21 thereof. This table 20 supports the movable part 6 of the seat cushion 2 from below in normal times as shown in FIG.
is raised to a predetermined height by the action of a gas spring or the like (as shown by the chain line in the figure) and used as a table. It is preferred to provide optional fixing means to maintain the required height of the table in its raised and lowered positions.

(Effects of the Invention) As is clear from the above description, in the vehicle seat of the present invention, the seat cushion and seat back are each divided into a fixed part and a movable part, and the movable part is rotated and erected relative to the fixed part. Since it is configured to form a side-facing 4-way counter seat, it is possible to convert between the tsukai seat and the counter seat with an extremely simple and easy operation without the need for any particularly complicated mechanism. Wear. In addition, by providing a table to support the seat during normal times,
There is no need to prepare a separate table, the seat can be safely supported, and by providing a shelf at the rear of the seat back, the seat can be safely supported even when the two-person seat is in use.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a normal state of one embodiment of the vehicle seat according to the present invention, FIG. 2 is a perspective view of a seat cushion frame, and FIG. 3 is a vehicle seat shown in FIG. 1 as a two-person seat. A perspective view showing the state, FIG. 4 is a perspective view seen from the front of the vehicle compartment, and FIG. 5 is an exploded perspective view showing a structure for rotating the movable part relative to the fixed part by τ and locking it in a desired position. Fig. 6 is a perspective view showing the seat lift support arm, Fig. 8 is a front view of the table,
FIG. 9 is a front view showing the operation of the double. 1... Rear seat, 2... Seat cushion, 3... Seat back, 5... Fixed part, 6... Movable part, 8...
・Fixed part, 9... Movable part, 15... Shelf,
20...table. Patent applicant: Ikeda Bussan Co., Ltd. Representative patent attorney: Tetsuji Iwakura (and one other person) Figure 1? Figure 2 Figure 3 Figure 4 Figure 5

Claims (1)

[Scope of Claims] A seat cushion that supports the buttocks and thighs of an occupant, and a seat back that is located behind the seat cushion and forms a backrest that can be tilted until it is substantially horizontal with respect to the seat cushion. In a vehicle A7 seat that serves as a seat for multiple occupants, the seat cushion and the seat back are each divided into left and right parts at the center in the width direction, and each of the left and right parts of the seat cushion is a fixed part. The movable part has an oval shape, and the two left and right movable parts each rotate the end of one leg of the oval shape near the outer end of the front edge of the fixed part. The other L-shaped legs that are movably supported are normally in contact with each other back-to-back at the center in the width direction of the seat cushion, while the left and right portions of the seat back are also approximately horizontal with respect to the seat cushion. The movable part is divided into a fixed part and a movable part when it is tilted, and the movable part has two abbreviations. Each of the fixed parts is rotatably supported near the outer end of the upper edge of the fixed part, and the other L-shaped leg is normally in contact with each other back-to-back at the widthwise center of the seat back, and the seat back is held approximately horizontally. A vehicle seat characterized in that the four movable parts are rotated and erected in a state of being tilted to form a two-person seat for four people.