JPH0242510Y2 - - Google Patents

Description

[Detailed explanation of the idea] (Industrial application field) This invention relates to a rotating seat for automobiles.

(Prior Art) In automobiles, the seats are rotated in order to make the front and rear seats arranged on the floor of the vehicle room face each other, and to make it easier for occupants to get on and off the seats. There is a formula.
In such a seat, a seat frame is supported on the vehicle interior floor so as to be rotatable about a vertical axis, and a seat cushion is placed on the seat frame (for example, Japanese Patent Laid-Open No. 14525/1983).

(Problem to be solved by the invention) By the way, in the case of the above configuration, when the seat is rotated, the components of the vehicle interior such as doors and console boxes arranged on both sides of the seat and the front end of the seat cushion are damaged. There is a risk of interference with the parts. Therefore, the seat cushion is pivoted to the seat frame so that its rear end can move up and down, and when the seat is rotated, the front end of the seat cushion is rotated upward, which causes interference with the cabin components. It may be possible to avoid this.

However, when the seat cushion is rotated upward as described above, the seat frame on which the seat cushion is placed is exposed, which causes the following problem. That is, this seat frame is
The seat frame is equipped with seat structural parts such as rotation means for the vehicle interior floor and a spring member for supporting the seat cushion, and if such structural parts of the seat frame are visible, there is a risk that the appearance of the seat will be degraded.

(Purpose of the invention) This invention was made with attention to the above-mentioned circumstances, and by rotating the front end of the seat cushion upward when rotating the seat, the seat cushion To prevent the front end of a seat cushion from interfering with components of a vehicle interior, and to prevent the appearance of the seat from deteriorating when the seat cushion is rotated upward.

(Structure of the invention) The features of this invention for achieving the above object are that the seat cushion is composed of a seat cushion body and a lower seat cushion provided between the seat cushion body and the seat frame. The seat cushion main body is pivoted to the seat frame so that its front end side can move up and down, and the lower seat cushion is formed to cover the upper surface side of the seat frame.

(Example) Hereinafter, an example of this invention will be described with reference to the drawings.

In the figure, reference numeral 1 denotes a vehicle interior floor of an automobile, and a pair of left and right seats 3, 3 are supported on the vehicle interior floor 1 via a base 2. In the figure, arrow Fr indicates the front of the vehicle.

A console box 4, which is a component of the vehicle interior, is provided on the vehicle floor 1 between the two seats 3, 3, and a shift lever 4a and a parking brake lever 4b project from the console box 4.

The base 2 includes a support frame 6 that rotatably supports the seat 3 around a vertical axis A and is substantially square in plan view, and a pair of left and right support frames 6 that support the support frame 6 on the vehicle interior floor 1 so as to be movable back and forth. It has slide rails 7, 7. This slide rail 7 is a lower rail 7a installed on the vehicle interior floor 1.
and an upper rail 7b which is movable back and forth on the lower rail 7a and is attached to the lower surface of the support frame 6. Further, a locking means (not shown) is provided for releasably locking the upper rail 7b at a predetermined moving position, and the locking and unlocking operations of this locking means are performed by the lock lever 9.

The sheet 3 will be explained below.

A seat frame 11 is provided on the support frame 6 and is supported rotatably around a vertical axis A. A seat cushion 12 is placed on the seat frame 11, and a seat bag 13 is rotatably pivoted back and forth at the rear end of the seat frame 11 via a pair of left and right pivots 14, 14'. be supported. Further, a head rest 15 is supported above the seat bag 13.

The seat frame 11 has a pipe frame 17 formed by bending a circular pipe so that the front part is semicircular and the rear part is U-shaped. This pipe frame 17 includes a plurality of springs 1.
9 is installed in an elastically tensioned state, and this spring 19 elastically supports the seat cushion 12.

To explain the structure for supporting the seat cushion 11 on the support frame 6, a circular hole 21 centered on the vertical axis A is formed in the support frame 6. On the other hand, a plurality of slide plates 22 are arranged to protrude from the pipe frame 17 and are arranged approximately equally in the circumferential direction with the vertical axis A as the center. A U-shaped slide groove 22a is formed at the protruding end of each slide plate 22, and this slide groove 22a can freely slide in the circumferential direction on the opening edge of the circular hole 21 via a sliding member (not shown). is fitted into the

Then, by sliding the slide plate 22 against the opening edge of the circular hole 21, the seat frame 1
1 is rotatable around the vertical axis A. Further, a locking means is provided between the support frame 6 and the seat frame 11 for releasably locking the seat frame 11 at a desired rotational position.

Further, a vertical axis A is provided on the upper surface side of the support frame 6.
Four locking members 24 are provided at equal intervals in the circumferential direction. On the other hand, the pipe frame 17 has a vertical axis A.
A stepped pin 25 is attached which detachably engages with the locking member 24 as the surrounding seat frame 11 rotates. The stepped pin 25 engages with the locking member 24 when the seat 3 is in the forward or backward orientation, whereby the seat 3 is firmly supported by the support frame 6.

To explain the seat cushion 12, the seat cushion 12 includes a seat cushion main body 26 which is pivotally supported by the seat frame 11,
The seat frame 11 is provided between these seat frames 11 and the seat cushion body 26.
A flat lower seat cushion 27 that covers the upper side of the
have. Further, along the rear edge of the lower seat cushion 27, a rear seat cushion 28, which is placed on the rear portion of the seat frame 11, is attached.

The seat cushion main body 26 has a cushion frame 29.
The upper and lower frames 29a and 2 are formed by bending wire rods.
9b, and a connecting piece 29c that connects them to each other. A pad 30 supported by the cushion frame 29 is provided, and the cushion frame 29 and the pad 30 are
is covered with the epidermis 31. The seat cushion main body 26 also has a thigh support portion 26a.
is the seat cushion body 26 with respect to the vertical axis A.
The seat protrudes further forward than the rear end to provide a stable seating posture.

Mainly, as shown in FIGS. 1 and 4, the lower seat cushion 27 has a front pad 32 formed in substantially the same shape as the pipe frame 17 in plan view. The front pad 32 is made of urethane that maintains relatively rigidity, and the upper surface side of the front pad 32 is covered with a skin 33.
The lower surface side of the cover is covered with felt 34, which is a thick cloth, and the peripheral edges of the outer skin 33 and the felt 34 are sewn together.

In the above case, since the front pad 32 has high rigidity, there will be no inconvenience such as the front pad 32 falling off from the seat frame 11 due to its own bending. Furthermore, since the felt 34 is thick, the front pad 32 is prevented from being damaged by the seat frame 11 side.

Further, the rear seat cushion 28 has a rear pad 32' that projects upward and has a substantially semicircular shape in cross section, and this rear pad 32' is made of urethane, which is substantially the same material as the front pad 32. It is.
A skin 33' is provided to cover the upper surface of the rear pad 32', and a felt 34' covers the lower surface of the rear pad 32'. Further, the skins 33, 33' and the felts 34, 34' are sewn together. The skin 33' and felt 34' of the rear pad 32' are attached to the rear pipe 17a of the pipe frame 17 by means of attachment pieces 35.

On the other hand, the lower seat cushion 27 is vertically rotatable about the seam portion with the rear seat cushion 28. In this case, the rotating end of the lower seat cushion 27 that rotates downward to cover the seat frame 11 is detachably connected to the pipe frame 17, although not shown.

The seat bag 13 has a seat bag frame 36 formed into a gate shape, a plurality of springs 37 are attached to the seat bag frame 36, and a pad 38 is supported by the seat bag frame 36 and the springs 37.

Referring mainly to FIG. 1 and FIG. 5, of the pair of left and right pivot means 14, 14', the left pivot means 14 will be explained first. Screwed down. Further, an upper arm 41 is screwed to the lower left side of the seatback frame 36, and the upper arm 41 is pivotally supported to the lower arm 40 by a pivot shaft 42. This pivot shaft 42 extends in the width direction of the seat 3 and has a horizontal axis. Further, a reclining device 43 is provided between the lower arm 40 and the upper arm 41.

Next, referring mainly to FIGS. 1 and 6, the right pivot means 14' will be explained. At the right rear of the pipe frame 17, there is a support bracket 45.
is installed protrudingly. Further, a pusher 4 is attached to a pivot shaft 46 attached to the protruding end of this support bracket 45.
The lower right end of the seat back frame 36 is pivotally supported via the seat back frame 7. This pivot shaft 46 is disposed on the same axis as the pivot shaft 42 described above. By operating the reclining device 43, the seat back 13 can be rotated back and forth, and is locked to the seat frame 11 in a desired tilted position.

In the above configuration, the seat cushion body 26
The rear end of the seat cushion body 26 is pivotally supported on the seat frame 11 side so that the thigh support portion 26a side of the seat cushion body 26 can be vertically movable.

That is, a pair of left and right pivot arms 49, 49' are provided projecting from the rear end of the upper frame 29a of the cushion frame 29. On the other hand, a stepped bolt 51 is attached to the pivot shaft 42.
is screwed, and the upper end of the left pivot arm 49 is pivotally supported on this stepped bolt 51. The upper end of the right pivot arm 49' is bent into a circular shape, and the upper end of the right pivot arm 49' is pivoted to the pivot shaft 46 via a pusher 52. By this,
The seat cushion body 26 is the seat frame 11
It is pivoted to the side so that it can freely move up and down about both pivot shafts 42 and 46 as rotation centers.

When the seat 3 is rotated around the vertical axis A, the seat cushion body 26 is rotated upward (arrow B in FIG. 3), and the thigh support portion 26a of the seat cushion body 26 is rotated upward. Interference with the console box 4 etc. is prevented.

Furthermore, when rotating the seat cushion body 26 downward to support it on the seat frame 11,
Each connecting piece 29c abuts on the pipe frame 17 to provide support, and at this time, each side of the pipe frame 17 is elastically sandwiched between the upper frame 29a and the lower frame 29b. Seat cushion body 26 onto seat frame 11
The supported state of is maintained.

(Effect of the invention) According to this invention, the seat cushion is composed of a seat cushion main body and a lower seat cushion provided between the seat cushion main body and the seat frame, and The front end side is pivoted to the seat frame so that it can move up and down, so when rotating the seat,
By rotating the seat cushion body upward from above the seat frame, the seat cushion body is prevented from interfering with the components of the vehicle interior.

In the above case, the lower seat cushion remains mounted on the seat frame, and there is a risk that this will interfere with the vehicle interior components when the seat is rotated. However, since the lower seat cushion is thin and does not have a large effect on the comfort of the seat cushion, if the shape of the lower seat cushion corresponds to the shape of the seat frame, the above-mentioned interference will occur. can be avoided.

In addition, in this invention, the lower seat cushion is formed to cover the upper surface of the seat frame, so when the seat cushion body is rotated upward as described above, the structural parts of the seat frame are not visible. is prevented. Therefore, the appearance of the sheet can be maintained in good condition.

[Brief explanation of the drawing]

The figures show an embodiment of this invention, in which Fig. 1 is an exploded perspective view, Fig. 2 is a perspective view, Fig. 3 is a partially sectional side view, Fig. 4 is a side sectional view of the lower seat cushion, and Fig. 5. 6 is a partial sectional view of the left side pivot means, and FIG. 6 is a partial sectional view of the right side pivot means. 1... Vehicle interior floor, 3... Seat, 11... Seat frame, 12... Seat cushion, 26
...Seat cushion body, 27...Lower seat cushion, A...Vertical axis.

Claims (1)

[Scope of utility model registration request] In a rotary automobile seat, a seat frame is provided on a vehicle interior floor so as to be rotatable around a vertical axis, and a seat cushion is placed on the seat frame.
The seat cushion is composed of a seat cushion main body and a lower seat cushion provided between the seat cushion main body and the seat frame, and the seat cushion main body is configured so that its front end side can move up and down. A rotating seat for an automobile, characterized in that a lower seat cushion is formed to be pivotally supported on a seat frame and to cover an upper surface side of the seat frame.