JPH035143Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a rotating seat for an automobile, and particularly to a rotating seat having a sliding function.

(Prior Art) In many cases, passenger-type one-box automobiles are provided with a first row seat, a second row seat, and a third row seat from the front side, with the second row seat being a rotating seat and the third row seat being a rotating seat. It is common for people to sit opposite each other with row seats.

Conventionally, this rotating seat has a structure in which a rotating base 71 is fixed on a vehicle body floor 70 and a seat cushion 72 is supported on the rotating base 71, as shown in FIG. In this case, the rotation center C of the rotating base 71 is provided approximately in the center of the front and back of the seat cushion 72 (FIG. 9-A), so even if the seat 73 is rotated backwards (FIG.
(Fig. B), it simply turns in the opposite direction to the direction before rotation.
Its position is almost the same as before rotation, and the distance from the rear seat 74 remains the same as before.

In this way, when the seat 73 faces backward and is seated opposite the rear seat 74, both seats 73, 7
If the distance between the four spaces remains as it was originally, there is a problem in that when the person is seated, there will be a cramped place for the feet to rest, and the seated posture will be uncomfortable and the person will get tired easily.

In addition, in order to solve this conventional problem and increase the space for the feet, for example, as described in Utility Application No. 55-91488, the center of rotation of the seat should be at the front of the seat and in the width direction of the seat. However, in the case of such a seat, the dimension from the center of rotation to the side edge of the rear of the seat becomes long, and the turning radius becomes large, especially if the wheel bulges into the passenger compartment. It interferes with the side walls of the car body, such as the house.Furthermore, in order to prevent this interference, the size and layout of the rotating seat must be set, which narrows the range of layout and reduces interior comfort. There were problems in that the sheet was damaged and the size of the sheet had to be reduced.

(Purpose of the invention) The present invention was made to solve these conventional problems, and its purpose is to solve the problem when the seat is in the forward-facing normal state or in the rear-facing facing state. To provide a rotary seat for an automobile that can ensure a wide space between feet, can increase the degree of freedom in layout by minimizing the rotation radius, and is easy to operate when rotating.

(Structure of the invention) That is, in order to achieve this purpose, the present invention:
The seat cushion is rotatably supported by a rotating post installed on the vehicle floor so as to be rotatable from a normal state facing the front of the vehicle to a facing state facing the rear of the vehicle. , a sliding means consisting of a slider and a guide rail for sliding the seat cushion relative to the rotating support is provided; The seat cushion is configured to be slidable to an eccentric position that is a predetermined distance from the rotating position in the forward and backward direction in the seated position and the seated position, and the sliding means includes a locking means for restricting the sliding of the seat cushion with respect to the rotating support at the eccentric position. , biasing means for slidingly biasing the seat cushion from the eccentric position in the rotational position direction, and interlocking means for releasing the restriction of the locking means at the eccentric position in conjunction with forward folding of the seat back. The configuration is as follows.

(Function) In the rotary seat for an automobile of the present invention, in the forward facing normal state, the seat is placed eccentrically rearward from the center of rotation based on the slide by the slide means, and the slide is restricted at that position by the lock means.

In this state, the space between the seat and the seat in front can be widened to ensure a wide leg space.

Next, if you want to sit facing the rear seat, first, move the seat cushion forward. Then, the sliding restriction by the locking means is released by the interlocking means, and at the same time, the urging force of the urging means
The seat cushion (seat) is slid forward to a rotational position where the center of the seat cushion and the center of rotation by the rotating support substantially coincide.

In this way, when the center of the seat cushion and the center of rotation coincide, the radius of rotation of the seat cushion becomes the minimum state.

In this state, when the seat is rotated so that it faces the rear seat, the seat cushion (seat) is slid rearward with respect to the rotating support column by the sliding means, and eccentrically caused. Then, at this position, the slide is restricted by the locking means.

In this way, since it slides backwards against the rotating column, it moves away from the rear seat, and in this case,
You can secure a wide leg space.

Next, when returning to the normal state again, the seat cushion is folded forward in the same way as when the seats are seated opposite each other. The interlocking means releases the locking means from sliding, and the urging means causes the seat cushion to move forward. ) is slid to the rotation position.

Then, the seat cushion is rotated at the minimum rotation radius to face forward, and then slid backward by the sliding means to an eccentric position. In this way, the normal state is established.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings. In describing the embodiment, an example will be taken in which the second row seat of an 8-seater one-box vehicle is a rotating seat for an automobile, and its structure will be explained with reference to FIGS. 1 to 8.

In the diagram, 1 is an 8-seater one-box car,
A driver seat 2 and a passenger seat 3 are arranged as first row seats, and a rotating seat 4 for a three-person automobile
are arranged as the second row of seats, and a rear seat 5 for three people is arranged as the third row of seats.

Next, 6 is the seat of the rotating car seat 4,
A seat bag 8 is provided at the rear of the seat cushion 7 so as to be foldable via a known forward-folding device 9 (details omitted).

Reference numeral 10 designates a cushion frame for the seat cushion 7, and sliders 12, 12 made of grooved members with outward lips are provided on the outer surfaces of the left and right side frames 11, 11.
(Constituting a part of the sliding means of the claims)
is fixed long in the front and back direction. The side frame 11 is located closer to the center in the sheet width direction than the side edge of the sheet 6, that is, located inside, and is formed into a rectangular frame whose width is narrower than the width of the sheet 6. Reference numeral 13 denotes a guide frame, which is made of a grooved member with an inward lip, and is connected to the sliders 12 and 1.
Left and right guide rails 1 that slidably fit 2
4 and 14 (constituting a part of the sliding means in the claims) and a cross member 15 installed between the front ends of the guide rails 14 and 14 in a substantially U-shape in plan view. Note that the guide frame 1
The width of the sheet 3 is also narrower than the width of the sheet 6, corresponding to the spacing between the sliders 12, 12.

Further, a slider locking mechanism (constituting the locking means in the claims) is provided between the slider 12 and the guide rail 14. As shown in FIG. 4, this slider lock mechanism is formed into a crank shape, and one piece is a locking piece 16.
The cushion frame 10 is in a state where the locking piece 16 penetrates the slider 12 and protrudes outward.
The lock lever 18 is pivotally connected to the side frame 11 of the
A locking hole 19 formed at a position corresponding to the locking hole 19 is provided between the other end of the lock lever 18 and the cushion frame 10 so that the locking piece 16 maintains an engaged state with the locking hole 19. The lock lever 18 is provided with a tension spring 20 that biases the lock lever 18.

Further, a control wire 21 is provided between the other end of the lock lever 18 and the lower end of the back surface of the seat bag 8 as interlocking means.

Furthermore, a slide spring 2 is provided between the slider 12 and the guide rail 14 as a biasing means for biasing the seat 6 from an eccentric position to a rotating position (described later).
2 is provided.

That is, the lock lever 18 is rotated against the tension spring 20 by the traction force of the control wire 21 accompanying the forward tilting operation of the seat bag 8.
The rotation of the lock lever 18 releases the engagement between the locking piece 16 and the locking hole 19, and at the same time, the slider 12 slides within the guide rail 14 due to the tensile force of the slide spring, and the entire seat 6 is rotated. is configured to automatically slide from the eccentric position to the rotating position. In addition, 23 is a manual operation lever provided on the lock lever 18.

Rear legs 24, 24 have upper ends fixed to the rear ends of the guide rails 14, 14, and a striker 2 attached to the vehicle body floor 25 at the lower end.
6 is provided with a lock 27 which can be freely engaged and disengaged.
The lock 27 has a stopper 29 with a socket 28 opening downward, and a lock lever 3 with an upward opening.
0 and a spring 31 that biases the lock lever 30 in the engaging direction, and the striker 26 has front left and right positions where it engages with the locks 27 when the guide frame 13 is facing rearward, and a spring 31 that biases the lock lever 30 in the engaging direction. When the frame 13 is facing backwards, lock 27,
They are arranged at a total of four locations, including the left and right positions on the front side that engage with 27.

Further, the lock 27 of the rear leg 24 is provided with a lock release mechanism, and the lock release mechanism is
One end of the outer wire 32 is fixed to the guide rail 14, and the other end is fixed to the rear leg 24,
And one end of the inner wire 33 is connected to the guide rail 14
Rear leg lock lever 3 rotatably attached to
4 and a control wire 36 attached to a side arm 35 whose other end protrudes from the lock lever 30. The lock release lever 34 has a handle portion 37 at its base end and a pin 38 between its distal end and base end, which is the center of rotation. The inner wire 33 is pulled by operating the lock release lever 34, and the lock lever 30 is rotated against the spring 31 due to the pull of the inner wire 33, and the lock is released.

Next, 39 is a rotating column, and a base plate 40
A cylindrical support 41 is erected above, a step 42 is formed on the upper edge of the outer periphery of the cylindrical support 41, and a rotating cylinder is connected to the upper part of the cylindrical support 41 via a bearing ball 43 held in the step 42. 44 is fitted. Then, the base plate 40 is fixed to the vehicle body floor 25 with screws 45, and
The rotary cylinder 44 is fixed to the center portion of the cross member 15 of the guide frame 13 in the seat width direction through a hinge 49, and the rotary column 39 is arranged so as to be located approximately in the center of the front portion of the seat cushion 7. has been done.

Note that 46 is a groove formed on the outer periphery of the cylindrical column 41, and 47 is a screw attached to the rotary cylinder 44 with its tip protruding from the inner surface of the rotary cylinder 44. This prevents the rotary cylinder 44 from coming off.

Further, the hinge 49 is fixed to the cross member 15 at one end and to the rotating cylinder 44 at the other end. This is the lock 27 provided on the rear leg 24.
When removing the seat from the striker 26, the rear part of the seat can be lifted up a little.
Note that if the locks are made to be able to be removed laterally and are provided at different positions so as not to hit adjacent strikers during rotation, there is no need to lift the rear part of the seat, so a hinge is not necessary.

Next, the rotation operation of the rotary automobile seat 4 of this embodiment will be explained with reference to FIG.

First, as shown in FIG. 7A, the seat 6 is in its normal state facing forward, and
The position where the center M of the seat cushion 6 is moved rearward than the rotation center N of the rotation support 39 by the guide rail 14 is called an eccentric position.
In the state shown in FIG. 7A, the seat 4 is placed further back than in the case where both centers M and N are substantially coincident, so that a wider space can be provided in front of the seat 4.

Next, when changing from this state to a facing state facing the rear seat 5 as shown in FIG. 18 is pulled by the control wire 21 and released from the locking hole 19, the slider 12 and the guide rail 14 are unlocked, and at the same time, the seat 6 is slid forward by the tensile force of the slide spring 22. The center M of the seat cushion 7 and the center N of the rotating support 39 coincide with each other.

Furthermore, when the lock release lever 34 is further operated, the lock of the rear leg 24 is released via the lock release mechanism.

After doing this, the guide frame 13 is rotated around the rotation support 39 while the seat 6 is attached.
Although it will rotate by 180 degrees [FIG. 7C], the seat rear legs 24, guide rails 14, and slider 12 are located inside the seat side edges, and the center M of the seat 6 is rotated by the rotation support 39. Since it coincides with the rotation center N, the seat 6
The rotation radius R of the seat is smaller than that of the conventional case where the center of rotation is located at the center of the seat. It can be made as small as the rotating seat device (the seat shown in FIG. 9). Furthermore, as the seat 6 slides, the seat 6 moves away from the wheel house 48 which becomes a rotational obstacle, and therefore,
This makes it possible to prevent interference with the wheel house 48 and the like when the seat is rotated.

Note that the guide frame 13 is installed as described above.
When rotated through 180 degrees, the locks 27, 27 of the rear legs 24, 24 engage with the front strikers 26, 26 and are locked. Next, after raising the seat back 8 from the above-mentioned rotating state, slider 1
2 and 12 along the guide rails 14 and 14 against the slide spring 22.
When the seat is slid from the rotating position to the eccentric position, the lock lever 18 of the slide lock mechanism and the lock hole 19 are engaged by the tension spring 20, and in this state, the rotating automobile seat 4 and the rear seat 5 are seated opposite each other. A sheet is completed [Figure 7 D].
In this state, the center M of the seat 6 is offset forward from the center of rotation N by the rotation support 39, so that the distance between the seat 6 and the rear seat 5 is increased, so that the seat 6 can be seated facing each other in a comfortable posture.

Although one embodiment of the present invention has been described above with reference to the drawings, the specific configuration of the present invention is not limited to the above-described embodiment.

For example, in the embodiment, the three-person bench seat type is a rotating seat, but the one-person seat may also be a rotating seat, and the invention is applicable not only to the second row of seats but also to the third row of seats. It may also be configured as a rotating seat.

Further, in the embodiment, a slider as a sliding means and a guide rail are provided on the left and right sides of the cushion frame, but for example, as shown in FIG. The slider 56 is fixed, and a cross member 58 is attached to the rear end of the guide rail 57 that is paired with the slider 56.
The rear legs 5 are provided at both ends of the cross member 58.
9 and 59 may be attached, and a center guide structure may be formed in which a rotary support 60 is provided at the tip of the guide rail 57. Note that the locking device is omitted in FIG.

(Effects of the invention) As explained above, according to the invention, in the normal position where the seat faces forward, the seat is placed behind the center of rotation, and when seated facing each other, the seat is placed in front of the center of rotation. Compared to the case where the seat is placed in a position where the center of the seat cushion and the center of rotation approximately coincide, the effect of securing a wider legroom in both normal and seated positions is obtained, but when the seat is rotated, Since the center of the seat cushion moves to the position of the center of rotation, the radius of rotation is minimized, resulting in the effect that buffering between the vehicle body and the seat is less likely to occur. Furthermore, this effect increases the degree of freedom in layout and prevents the sheet from being made smaller unnecessarily.

In addition, when moving the seat from the normal state and seated state to the rotating position, simply folding the seat back releases the locking means from sliding, and the seat is slid by the urging force of the urging means. The effect of easy and comfortable operation can also be obtained.

[Brief explanation of the drawing]

FIG. 1 is an explanatory plan view showing the seat arrangement of a one-box car equipped with a rotating seat according to an embodiment of the present invention, FIG. 2 is a plan view showing a rotating seat according to an embodiment of the present invention, and FIG. Exploded perspective view, 4th
The figure is an exploded perspective view showing the slider lock mechanism.
The figure is a perspective view showing the lock release mechanism of the rear leg.
7 is an explanatory diagram showing the rotation operation sequence of the rotary seat, FIG. 8 is a perspective view showing another example of the rotary seat, and FIG. 9 is a side view of the conventional structure. 4... Automobile rotating seat, 7... Seat cushion, 8... Seat back, 12... Slider (sliding means), 14... Guide rail (sliding means),
18... Lock lever (locking means), 19... Locking hole (locking means), 20... Tension spring (biasing means),
21...Control wire (interlocking means).

Claims (1)

[Scope of Claim for Utility Model Registration] A seat cushion is rotatably supported on a rotating post installed on the vehicle floor from a normal state facing the front of the vehicle to a facing state facing the rear of the vehicle, A slide means consisting of a slider and a guide rail for sliding the seat cushion relative to the rotating support is provided between the seat cushion and the slide means such that the center of the seat cushion substantially coincides with the center of rotation by the rotating support. The seat cushion is configured to be slidable between a rotational position and an eccentric position that is a predetermined distance from the rotational position in the front and rear directions in the normal state and the seated state, and the sliding means includes a slide means for sliding the seat cushion with respect to the rotating support. A locking means for regulating the seat cushion at an eccentric position, and a biasing means for sliding and biasing the seat cushion from the eccentric position in a rotational position direction are provided, and the regulation at the eccentric position of the locking means is caused by tilting the seat back forward. A rotary automobile seat characterized by being provided with interlocking means for interlocking and releasing.