JP2621183B2 - Car folding seat - Google Patents

Description

Description: FIELD OF THE INVENTION The present invention relates to the manufacture of foldable seats for automobiles, especially rear seats.

(Prior art)

2. Description of the Related Art As a conventional folding sheet for an automobile, there is a well-known one shown in FIGS. 5 to 7, for example. That is, the folding seat 1 is disposed substantially horizontally on the upper surface of the floor member 3 of the vehicle body 2, and is supported by the vehicle body 2 so that the folding sheet 1 can be inverted and rotated around a first hinge 4 provided on the front side of the vehicle body 2. And a substantially horizontal position centered on a second hinge 6 provided on the floor member 2 of the vehicle body 2 so as to be substantially perpendicular to the upper surface of the floor cushion 2 and provided below the vehicle body 2. The seat back 7 is supported by the vehicle body 2 so as to be rotatable forward. Reference numeral 8 is a hip point.

To change the position of the seat 1 from the position shown in FIG. 5 to the position shown in FIG.
Is rotated so as to be inverted about the first hinge 4, and then the seat back 7 is folded forward by rotating the seat back 7 to the substantially horizontal position about the second hinge 6.

[Problems to be solved by the invention]

However, according to the prior art, as shown in FIG. 7, if the seat back 7 is tall, it interferes with the back surface of the seat cushion 5 at the time of folding, and folding becomes impossible. In this case, the front end of the seat cushion 5 interferes with the tunnel portion 9 of the vehicle body 2, and the rear end of the upper portion of the seat cushion 5 is seated on the front seat 10.
Interfering with the back of 11. Reference numeral 12 denotes a seat cushion of the front seat 10.

Therefore, according to the present invention, in view of such a conventional problem, an object is to provide a seat that can be freely folded even when the seat back is tall.

[Means for solving the problem]

In order to achieve the above object, the present invention provides a seat cushion disposed substantially horizontally on the upper surface of a floor member of a vehicle body and supported by the vehicle body so as to be able to freely rotate around the front side with respect to the vehicle body; A seat back supported on the vehicle body so as to be able to rotate frontward to a substantially horizontal position around a lower side with respect to the vehicle body, the seat back being disposed so as to be substantially perpendicular to the upper surface of the floor member, The seat back is a vehicle folding seat comprising two members, an upper member and a lower member, wherein the lower end of the frame of the upper member is rotatably supported with respect to the upper end of the frame of the lower member. When the seat back is in the upright position, the rotation is prevented by the lock pin being engaged with the lock hole formed in the side portion of the frame of the lower member, so that the seat back rotates forward. Accompanying said The release pin held by the back bag is pulled, the lock pin is detached from the lock hole by the center bracket which is rotated left and right by the pulling force, and a biasing force is applied to the upper member by a biasing means, thereby lowering the lower member. A folding seat for an automobile, wherein the upper member rotates toward the rear surface of the seat back with respect to the side member.

(Operation)

With such a configuration, according to the present invention, when the seat back is tilted forward, the upper member rotates backward with respect to the lower member, that is, rotates to the rear side of the seat back, thereby lowering the height of the seat back. The release wire itself can be bent so as not to interfere with the lower surface of the seat cushion, and even if the means for moving the upper member by rotating the center bracket in the left and right direction is inside the seat back, foreign objects can be detected by the seated occupant. In addition, since the lock pin, the lock hole, and the urging means are disposed on the side of the frame of the lower member and the frame of the upper member, the lock pin, the lock hole, and the bias member are separated from the occupant's back, and foreign object sensation is felt on the occupant's back. Can be obtained.

〔Example〕

FIGS. 1 and 4 show an embodiment of the present invention, in which a folding sheet 20 is disposed substantially horizontally on the upper surface of a floor member 3 of a vehicle body 2 and provided on the front side of the vehicle body 2. A seat cushion 5 supported on the vehicle body 2 so as to be able to rotate freely about one hinge 4, and an upright and substantially perpendicularly arranged upper surface of the floor member 3 of the vehicle body 2; On the other hand, the seat back 21 is supported by the vehicle body 2 so that the front hinge can freely rotate to a substantially horizontal position around a second hinge 6 provided below.

The seat back 21 is composed of two members, an upper member 22 and a lower member 23, and the upper end 25 of the frame 24 of the lower member 23.
The lower end portion 27 of the frame 26 of the upper member 22 is rotatably supported, and the rotation is prevented when the seat back 21 is in the upright state. As the seat back 21 rotates forward, the lower member 23 is rotated. On the other hand, a hinge member 28 that supports the upper member 22 so as to rotate toward the back surface 21a of the seat back 21 is provided.

The hinge member 28 is bridged between both side portions of the lower end portion 27 of the frame 26, and the frame member 26
A rod 30 rotatably supporting an upper end 25 of the rod 24, and springs 31, 31 respectively wound around both ends of the rod 30 and urging the frame 26 rearward with respect to the frame 24.
The rods 30 are disposed at both ends thereof in parallel with the rods 30 and can be disengaged from the lock holes 32 of the frames 24, 26, and when engaged, the rotation of the frames 24, 26 is prevented. Lock pin spring in the direction that is always engaged
Lock pins 34, 34 urged by 33, a center bracket 36, which is rotatably supported at the left and right centers of the rod 30 by pins 35, extends in the shape of a piece vertically and to the left and forms a substantially T shape, The free ends of the first and second plates 36a, 36b extending up and down of the center bracket 36 and the lock pins 34, 34
A pull rod 37, which is coupled between the center bracket 36 and transmits the rotational force of the center bracket 36 to the lock pins 34, 34, and a third plate 36c extending horizontally to the left of the center bracket 36
A core wire 38a is supported by the free end of the base member 3 and the floor member 3, respectively, and a member 30a that covers the core wire 38a and projects from the rod 30
And an outer member 38 supported at an appropriate position of the lower member 23.
b and a release wire 38.

Therefore, according to the present embodiment, when the seat back 21 is moved forward, the core wire 38a of the release wire 38 pulls the third plate 36c of the center bracket 36 downward, the center bracket 36 rotates, and the pull rods 37, 37 are pulled. The lock pins 34, 34 are removed from the lock holes 32 through the
A force for rotating the frame 26 backward is given by the urging force of 1. That is, the upper member 22 rotates rearward,
The height of the seat back 21 is reduced.

When the seat back 21 that has fallen forward is erected again and the upper member 22 is rotated forward about the rod 30, the lock pin 34 is engaged with the lock hole 32 again, and the normal seat back
It will be in the state of 21.

(Effect)

As described above, according to the present invention, a seat cushion disposed substantially horizontally on the upper surface of a floor member of a vehicle body and supported by the vehicle body so as to be able to freely rotate around the front side with respect to the vehicle body, A seat back, which is disposed so as to be substantially perpendicular to the upper surface of the floor member of the vehicle body and is supported by the vehicle body so as to be freely rotatable forward to a substantially horizontal position about a lower side of the vehicle body; In the above-mentioned seat back, in an automobile folding seat composed of two members, an upper member and a lower member, the lower end of the upper member frame is rotatable relative to the upper end of the lower member frame. When the seat back is supported and the seat back is in the upright state, the rotation is prevented by the lock pin being engaged with the lock hole formed in the side of the frame of the lower member, and the seat back is moved forward. To rotate The release wire held by the seat back is pulled, the lock pin is detached from the lock hole by the center bracket that is rotated in the left-right direction by the pulling force, and by applying urging force to the upper member by the urging means, Since the upper member is rotated to the rear side of the seatback with respect to the lower member, when the seatback is tilted forward,
The upper member rotates rearward with respect to the lower member, that is, to the rear side of the seat back, thereby lowering the height of the seat back to secure design freedom, and the release wire itself can bend. Even if the means for moving the upper member by rotating the center bracket in the left-right direction does not interfere with the lower surface of the seat cushion, the seated occupant does not give a sensation of a foreign object even in the seat back, and the lock pin and the lock hole, By disposing the urging means on the side of each of the frame of the lower member and the frame of the upper member, practical effects such as separating from the back of the occupant and not giving a foreign body feeling to the occupant's back can be obtained.

[Brief description of the drawings]

1 to 4 are views showing an embodiment of the present invention. FIG. 1 is a perspective view of a main part, FIGS. 2 and 3 are perspective views and side views of a seat back of the present invention, FIG. 4 is an explanatory view of the operation, FIGS. 5 to 7 are views showing a conventional example, FIG. 5 is a seat back standing state, FIG.
The figure is a side view showing the defective state. 1,20 ... folding sheet, 2 ... body, 3 ... floor member, 4
...... First hinge, 5 ... Seat cushion, 6 ... Second
Hinge, 7,21 …… Seat back, 22 …… Upper member, 23…
… Lower member, 24,26 …… Frame, 25 …… Top end, 27…
... Lower end part, 28 ... Hinge member, 31 ... Spring as urging means, 32 ... Lock hole, 34 ... Lock pin, 36 ...
… Center bracket, 38 …… release wire.

Claims (1)

(57) [Claims] A seat cushion disposed substantially horizontally on an upper surface of a floor member of the vehicle body and supported by the vehicle body so as to be able to freely rotate around a front side with respect to the vehicle body; A seat back supported by the vehicle body so as to be able to freely rotate to a substantially horizontal position centering on the lower side with respect to the vehicle body, and the seat back is disposed on the right side of the vehicle. A member and a lower member for an automobile folding seat, wherein the lower end of the upper member frame is rotatably supported relative to the upper end of the lower member frame, and the seat is rotatably supported. When the back is in the upright position, the rotation is prevented by the lock pin being engaged with the lock hole formed in the side portion of the frame of the lower member, and the seat back is rotated by the seat back to rotate forward. Retained The lock pin is detached from the lock hole by the center bracket which is rotated left and right by the pulling force, and the biasing means applies a biasing force to the upper member by the biasing means, so that the lower member is A folding seat for an automobile, wherein the upper member rotates toward the rear side of the seat back.