JPS631619Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rotary seat used particularly in a van-type vehicle.

As shown in Figure 1a, in a van-type vehicle, the first row (driver's) seat 1 is followed by the second row
and a third row seat 3 are arranged, and the second row seat 2 can be rotated from a forward facing position to a rearward facing position by a rotating table 4, and can be made to face the third row seat 3. is 2 due to the folding legs 5.
It can be folded to the back position of the row seat 2, expanding the cargo space.

By the way, when folding the third row seat 3 with the second row seat 2 slid a certain distance l rearward using the forward-facing device, it cannot be completely folded as it hits the back of the slid second row seat 2. Therefore, it is necessary to re-slide the second row seat 2 forward to a distance l', and for this purpose, it is preferable to limit the rearward sliding amount of the second row seat 2 to a distance l' in advance.

On the other hand, when the second row seat 2 is rotated to the rearward facing position as shown in FIG. It is preferable that the rearward sliding amount of can be extended to a distance l.

The present invention easily solves the problem of the rearward sliding amount of the seat, which is contradictory to the above, and is a rotary seat in which a turntable is rotatably supported on a base fixed to the vehicle floor, and a seat member is attached to the turntable. A lower rail is attached to the turntable and an upper rail is attached to the seat so that the seat can be moved back and forth, and a stopper is fixed to the base at a position eccentrically forward from the center of rotation of the turntable, and a stopper is attached to the seat member. This is a newly created rotary seat for an automobile characterized by a contact piece that comes into contact with the front side of the stopper when sliding forward and backward, and comes into contact with the back side of the stopper when sliding backward backward. be.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIGS. 2 to 5, the rotary automobile seat 10 has a base 12 fixed to a vehicle floor 11.
A turntable 14 is provided on the base 12 and rotatably pivoted around a fixed rotating shaft 13,
A lower rail 15 is fixed on the turntable 14, and an upper rail 16 that fits into the lower rail 15 is fixed to the seat frame 17 of the seat 10, so that the seat 10 is fixed to the base 12.
is rotatable between a forward facing position and a rearward facing position, and can be slid back and forth between the forward and rearward facing positions.

This rotating operation of the seat 10 is performed by the rotating shaft 13.
The rods 19, 19 are connected to a linking lever 18 which is rotatably pivotally connected to the turntable 14, and each rod 19, 19 is connected to a rotary operation lever 20, 20 attached to both sides of the turntable 14, and each rotary operation lever 20, 20, base 1 as shown in FIG.
The lock pins 22, 22 that can be engaged with the two lock holes 21, 21 are connected, and the lock pins 22, 22 are simultaneously removed from the lock holes 21, 21 by operating one of the rotary operation levers 20, and the seat 10 is removed.
can be rotated between forward and rearward positions.

Although not shown in detail, the sliding operation of the seat 10 is performed by connecting a lock pin to the slide operating levers 23, 23 attached to the seat frame 17, and connecting the lock pins to the lock pins provided on the lower rails 15, 15 of the turntable 14. engage the hole;
By operating one slide operating lever 23 and connecting it to the other via a wire, the lock pins can be removed from the lock holes at the same time, and the seat 10 can be slid forward and backward.

The rotation operation structure and slide operation structure of the seat 10 are known.

On the other hand, as shown in FIGS. 6, 7a and 7b, the upper corner of the rotating shaft 13, which is fixed to the base 12 and pivotally supports the turntable 14, projects above the turntable 14. A U-shaped stopper 25 is fitted toward the front of the bolt portion and fastened and fixed with a nut 26, and the bottom front surface 25a and bottom back surface 25b of the stopper 25 constitute a stopper surface, and the seat 10 The seat frame 17 contacts the bottom front surface 25a of the stopper 25 when the seat 10 slides forward and rearward, and contacts the bottom rear surface 25a of the stopper 25 when the seat 10 slides forward and rearward.
A contact piece 27 is provided that contacts 5b.

Therefore, with the stopper structure as described above, when the seat 10 is in the forward position as shown in FIG. Since the distance is only 1', the rearward sliding amount of the seat 10 is limited to the distance l'.

Furthermore, when the seat 10 is rotated to the rearward position as shown in FIG. The quantity becomes extended to a distance l.

Next, as shown in FIGS. 8 and 9, in order to support the four corners of the turntable 14 (seat frame 17, seat 10) with respect to the base 12 so that the turntable 14 (seat frame 17, seat 10) does not tilt between the forward and rearward positions, Engaging pieces 30, ... 30 covered with a synthetic resin material 29 are fixed to the four corners on the top of the turntable 12, and the engagement pieces 30, ..., 30 can be engaged with the four corners below the turntable 14 from the rotational direction. The U-shaped catches 31, . . . , 31 are fixed.

In this case, the engagement pieces 30, 30 at one diagonal position
is on the outside, the catches 31, 31 are on the inside, the other diagonally positioned engagement pieces 30, 30 are on the inside, the catches 31, 31 are on the inside,
The engaging pieces 30, . . . and the catch 31 are arranged so that 31 is on the outside.

With the fixed position support structure as described above, when the seat 10 is rotated forward or backward, the catches 31, 31 at one diagonal position are
Since it passes without engaging the engagement pieces 30, 30 at the other diagonal position, the rotation operation does not become heavy in the middle, and the rotation operation can be performed smoothly.

Further, as shown in FIG. 10a, uprights 18a, 18a are provided at both ends of the linking lever 18 rotatably pivoted to the rotating shaft 13 on the turntable 14, and the front and rear slides of the seat 10 are Seat frame 17 corresponding to the intermediate position
At the falling edges 17a, 17a, the linking lever 18
Cuts 33, 33 are provided that do not prevent the rotation of the rising edges 18a, 18a.

With the rotation regulating structure as described above, when the seat 10 is in the intermediate position as shown in FIG. , 17a without contacting the depth of cut 3.
3 and 33, the seat 10 can be rotated. However, when the seat 10 is slid backwards as shown in FIG. 10b and forwards as shown in FIG. 10c, If the seat 10 is allowed to rotate as it is, the seat 10 may come into contact with the interior wall of the car or the third row seat and become unable to rotate. , 18a come into contact with the falling edges 17a, 17a of the seat frame 17, so the linkage lever 18 cannot be rotated, and therefore the seat 10 cannot be rotated, so the operator is prompted to slide the seat 10 to the intermediate position. I can do it.

Furthermore, as shown in FIG.
The centers a of the lock holes 21 and 22 of the base 12 are shifted by Δt toward the slope side with respect to the centers b of the lock holes 21 and 21 of the base 12.

With the rotational lock configuration as described above, when the linking lever 18 is rotated, the lock pins 22, 22 are always engaged with the lock holes 21, 21 from the slope side at the same time via the rods 19, 19, so that one-sided locking is possible. The phenomenon disappears.

As is clear from the above explanation, the present invention
A stopper is provided at a position eccentric to the front from the rotation axis, and a contact piece is provided on the seat frame of the seat, which comes into contact with the front of the stopper when the seat is sliding forward and backward, and which comes into contact with the back of the stopper when it is sliding backwards. Therefore, when sliding forward and rearward, the sliding amount is regulated to be short, so there is no problem in folding the third row seat, and when sliding backward, the sliding amount is extended, making it possible to expand the leg space.

In addition, since basically only a stopper and an abutment piece are provided, the structure is extremely simple and can be applied to an existing rotary seat with only a slight modification.

[Brief explanation of the drawing]

Figure 1a is a side view of a van-type vehicle equipped with a rotating seat, Figure 1b is a side view of the main parts of the vehicle shown in Figure 1a when the rotating seat is rotated backwards, and Figure 2 is a side view of a van-type vehicle equipped with a rotating seat. A perspective view of such a rotary seat, FIG.
XX cross-sectional view of the figure, Figure 4 is a front view of Figure 2,
Figure 5 is a perspective view of the base and turntable, Figure 6
The figure is a perspective view of the relationship between the stopper and the contact piece, Figure 7a
7b is a plan view showing the contact state of the abutting piece against the stopper, FIG. 8 is a plan view of the base and turntable showing the arrangement relationship between the catch and the engaging piece, and FIG. 9 is a plan view showing the positional relationship between the catch and the engaging piece. Cross-sectional view of the joint piece, No. 10
Figures a, 10b and 10c are exploded plan views showing how to restrict the rotation of the interlocking lever, and Figure 11 is a plan view showing the arrangement of the lock pin and the lock hole. 10...Rotating seat, 11...Vehicle floor, 1
2... Base, 13... Rotating shaft, 14... Turntable, 15... Lower rail, 16... Upper rail, 17... Seat frame, 25... Stopper, 27... Contact piece.

Claims (1)

[Scope of utility model registration request] In a rotary seat in which a turntable is rotatably supported on a base fixed to the vehicle body floor and a seat member is attached to the turntable, a lower rail is attached to the turntable and an upper rail is attached to the seat so that the seat can move back and forth. A stopper is fixed to the base at a position eccentric to the front from the center of rotation of the turntable, and the stopper contacts the front surface of the stopper when the seat member is sliding forward and rearward, and the stopper comes into contact with the front surface of the stopper when the turntable is sliding backwards. A rotary automobile seat characterized by being provided with a contact piece that contacts the back surface.