JP2001219773A - Seat for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To certainly prevent deformation of a seat frame without causing cost increase and weight increase, in relation to the seat for a vehicle in which a lower anchor for fixing a child seat is mounted to a plurality of places in the car width direction of a seat frame. SOLUTION: A mounting part to a seat back frame 9 (seat frame) side of at least a partial lower anchor 4 or the proximity of the mounting part is connected to a floor side through a bracket 11 (connecting means).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle seat.

[0002]

2. Description of the Related Art Conventionally, a child seat has generally been attached to a vehicle seat by a seat belt or the like. However, a vehicle seat is provided with a reclining adjuster at a lower end of a seat back to a rear end of a seat cushion. In some cases, it takes time to attach the belt to the vehicle seat so as not to be loosened.

FIG. 13 shows an example of a vehicle seat for improving the workability of attaching the child seat as described above. In the drawing, reference numeral 1 denotes a vehicle floor, 2 denotes a seat cushion, and 3 denotes a seat back. The lower anchor 4 for fixing the rear part of the child seat has an end welded to a mounting plate 6 having a bolt insertion hole 5 as shown in FIG. 14, and the mounting plate 6 is bolted as shown in FIG. 7, the lower anchor 4 is fixed to the floor 1 so that the lower anchor 4 faces a notch 8 formed at a lower portion of the seat back 3.

However, when such a structure is adopted, the lower anchor 4 fixed to the floor 1 in advance when mounting and assembling the seat, which is a heavy load on the vehicle assembling operator, on the vehicle. Is seat back 3
Must be fitted into the notch 8 formed in the lower part of the vehicle with good workability, so that the notch 8 needs to be enlarged, which is undesirable in appearance. shape,
In some cases, it was difficult to attach the lower anchor 4 to a predetermined attachment location due to restrictions such as the floor panel shape.

Therefore, as shown in FIG. 15, the end of the lower anchor 4 is welded to a seat back frame 9 provided inside the seat back 3, and the lower anchor 4 is inserted into a notch 8 formed below the seat back 3. To face,
Alternatively, as shown in FIG. 16, the end of the lower anchor 4 is welded to a seat cushion frame 10 provided inside the seat cushion 2 so that the lower anchor 4 faces the notch 8 formed at the lower part of the seat back 3. A proposed structure has been proposed.

[0006]

However, in the structure shown in FIGS. 15 and 16, the pipe diameter is increased or the rein hose is added to increase the strength of the seat back frame 9 and the seat cushion frame 10. Therefore, there is a problem that the cost and weight increase.

The present invention has been made in view of the above circumstances, and has as its object to reliably prevent deformation of a seat frame without increasing costs and weight.

[0008]

SUMMARY OF THE INVENTION The present invention relates to a vehicle seat having child seat fixing lower anchors at a plurality of positions in the vehicle width direction of a seat frame, and at least a part of the lower anchor to the seat frame side or its vicinity. Are connected to the floor via connecting means.

With this configuration, the load input from the child seat to the lower anchor is efficiently transmitted to the highly rigid floor side where the seat mounting strength is ensured by the connecting portion at or near the mounting portion. It is possible to eliminate the need to increase the pipe diameter and add a rein hose as a countermeasure for the strength of the seat frame, thereby avoiding the cost increase and weight increase and preventing the seat frame from being deformed. It is possible to do.

In the present invention, the connecting means can be constituted by a bracket formed so that one end thereof can be tiltably fitted to the seat frame side and the other end can be fastened to the floor side. .

According to this structure, especially when the seat back frame is selected as the seat frame and the lower anchor is attached, the rotation of the seat back frame is allowed while being pivotally supported by one end of the bracket. Reclining and moving the seat back forward can be performed without any trouble.

In addition, since the bracket can be appropriately tilted around the one end to be fastened to the floor, there is a possibility that the other end of the bracket may not be properly fastened to the floor due to an assembly error. It will be avoided beforehand.

If a slight clearance is secured between the hole at one end of the bracket and the seat frame after the bracket is installed so that the two are held in a non-contact state, it is effective as a countermeasure against abnormal noise. Becomes

Further, in the present invention, the connecting means may be constituted by a bracket formed so that one end is tiltably locked to the seat frame side and the other end is fastened to the floor side. .

[0015] In this way, since the bracket can be installed later after the seat is installed on the floor, the manufacturing process of the seat itself is simplified as compared with the case where the bracket is pre-assembled in advance. In addition, when mounting the seat on the floor, there is no need to worry about the brackets interfering with other parts, so the work of taking the seat into the vehicle body becomes easier, and furthermore, there is no difference in the specification of the seat due to the presence or absence of the lower anchor, and it is manufactured It is possible to reduce costs.

Further, in the present invention, the connecting means may be divided into a seat frame-side divided piece and a floor-side divided piece, and the two divided pieces may be appropriately engaged and connected.

[0017]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a side view, partially cut away, showing an example of an embodiment of the present invention, FIG. 2 is an enlarged view, showing a portion II of FIG. 1 in use, and FIG. FIG. 4 is a perspective view of the seat back frame 9 viewed from the rear side. In the embodiment shown in FIGS. 1 to 3, a seat back frame 9 is selected as a seat frame and lower anchors are provided at a plurality of positions in the vehicle width direction of the seat back frame 9. The lower anchor 4 is welded to the rear surface of the seat back frame 9 at both ends thereof, extends downward, and is formed by a notch 8 formed at a lower portion of the seat back 3. It has a U-shape and projects forward.

At least a part of the lower anchors 4 to which the lower anchors 4 are attached to the seat back frame 9 or the vicinity thereof are connected to the floor 1 side via brackets 11 serving as connecting means.

Here, one end of the bracket 11 facing forward is externally fitted to the seat back frame 9 so as to be tiltable, and the other end of the bracket 11 is bolted to the floor 1 side. 12 are fastened.

The other end of each bracket 11 is fastened to the seat cushion frame 1 in this manner.
The seat legs 15 (see FIG. 3) which are welded to both ends in the vehicle width direction of the vehicle 0 (see FIG. 3) correspond to portions to be fastened to the floor 1, so that the floor 1 at this position is rigid to secure the seat mounting strength. It has a high structure. That is, as shown in an enlarged view in FIG. 2, a box-type floor reinforcing member 13 extending in the vehicle width direction and a reinforcing plate 14 laid at the fastening portion are conventionally reinforced, and have sufficient strength against a load applied to the seat. Is to be provided.

For example, as shown in FIG. 3, in the case of a three-seat seat, a pair of left and right lower anchors 4 are arranged at three places, and a total of six lower anchors 4 are arranged. It is of particular concern that the load on the seat back frame 9 when a load is applied to the lower anchor 4 at a location away from the seat leg 15 of the vehicle, so that each part near the middle portion excluding the lower anchors 4 at both ends in the vehicle width direction. Two locations near the mounting portion of the lower anchor 4 are connected to the floor 1 side by brackets 11.

In the drawing, reference numeral 16 denotes a child seat which is attached to and detached from the lower anchor 4.
6 is inserted into a notch 8 formed in the lower portion of the seat back 3 as shown by an arrow A, and a groove 18 at the rear end of the connector 17 is inserted into a lower anchor as shown in FIG. When fitted to the distal end of the lower anchor 4, the locking piece 19 urged to protrude into the groove 18 engages with the distal end of the lower anchor 4 and is locked.

On the other hand, when the child seat 16 is removed from the seat, the connector 17 can be removed from the lower anchor 4 by operating the unlocking mechanism (not shown) attached to the child seat 16 to retract the locking piece 19. It is.

With such a configuration, the load input from the child seat 16 to the lower anchor 4 is efficiently transmitted via the bracket 11 to the highly rigid floor 1 where the seat mounting strength is secured. Therefore, it is not necessary to increase the pipe diameter or add a rein hose as a measure against the strength of the seat back frame 9, and it is possible to avoid a cost increase and a weight increase associated with this. Can be prevented from being deformed.

In particular, in this embodiment, the bracket 11
Is pivotally fitted to the seat back frame 9 side so that the seat back frame 9 is pivotally supported by one end of the bracket 11. Reclining and moving forward can be performed without any trouble.

Further, since the bracket 11 can be appropriately tilted around the one end to be fastened to the floor 1 side, a defective fastening of the other end of the bracket 11 to the floor 1 due to an assembly error. This can be avoided beforehand.

As shown in FIG. 2, after the bracket 11 is installed, a slight clearance is secured between the hole 11a at one end of the bracket 11 and the seat back frame 9, and the two are held in a non-contact state. This is effective as a countermeasure for abnormal noise.

In the above-described embodiment, the seat back frame 9 is selected as the seat frame, and the lower anchor 4 is attached to the seat back frame 9 at a plurality of positions in the vehicle width direction. As shown in FIG. 4, the present invention can be similarly applied to a case where the seat cushion frame 10 is selected as the seat frame and the lower anchors 4 are attached to the seat cushion frame 10 at a plurality of positions in the vehicle width direction.

That is, the seat cushion frame 10 of at least a part of these lower anchors 4
If the mounting portion to the side or the vicinity thereof is connected to the floor 1 side via the bracket 11 forming the connecting means, the same operation and effect as in the above-described embodiment of FIGS. 1 to 3 can be obtained.

FIG. 5 is a perspective view showing the mounting state of the bracket 11 of FIG. 4. In the example shown here, the seat cushion frame 10 between the adjacent lower anchors 4 is attached to one end of the bracket 11. As shown in FIG. 6, one lower anchor 4 is provided by a twin-shaped bracket 11 having left and right pivots.
The seat cushion frame 10 may be pivotally supported so as to straddle the welded portion at one end.

FIGS. 7 and 8 show still another embodiment of the present invention. In this embodiment, one end formed in the shape of a hook is locked to the seat back frame 9 side so as to be tiltable and the other. The connection means is constituted by a bracket 11 formed so that the end can be fastened to the floor 1 side via a bolt 12.

This makes it possible to retrofit the brackets 11 after the seats have been installed on the floor 1, so that the manufacturing process of the seats itself is simpler than in the case where the brackets 11 are preassembled in advance. In addition, since the bracket 11 does not have to worry about interfering with other parts when the seat is installed on the floor 1, the work of taking the seat into the vehicle body becomes easy. Since there is no difference in specifications, manufacturing costs can be reduced.

It is needless to say that the same operation and effect can be obtained by employing a bracket 11 having a shape as shown in FIG. 9 instead of the bracket 11 as shown in FIG.
As shown in FIG. 10, it is of course possible to connect the seat cushion frame 10 to the floor 1 by a bracket 11 having a shape substantially similar to that of FIG.

FIG. 11 shows the bracket 11 in the embodiment shown in FIGS.
Divided into a divided piece 11x fixed to the side and a divided piece 11y fastened to the floor 1 side.
x, 11y can be appropriately engaged and connected. More specifically, a hook shape is provided at the rear end of the divided piece 11x, and the rear of the divided piece 11x having the hook shape is provided. An engagement slit s is formed at the front end of the divided piece 11y so as to be able to engage with the end.

However, as shown in FIG.
An engagement slit s may be formed at the rear end of 1x, and a hook shape may be provided at the front end of the divided piece 11y so as to engage with the engagement slit s. Furthermore, divided piece 1
The engagement between 1x and the divided piece 11y may be provided so as to allow the seat back frame 9 to tilt.

It should be noted that the vehicle seat of the present invention is not limited to the above-described embodiment, and it is needless to say that various changes can be made without departing from the gist of the present invention.

[0038]

According to the vehicle seat of the present invention described above, the following various excellent effects can be obtained.

(I) Since the load input from the child seat to the lower anchor can be efficiently transmitted to the highly rigid floor side where the seat mounting strength is secured, it is possible to increase the pipe diameter as a measure against the strength of the seat frame. It is not necessary to add a rein hose or the like, and it is possible to prevent deformation of the seat frame while avoiding an increase in cost and weight associated with this.

(II) If the connecting means is constituted by a bracket whose one end is tiltably fitted to the seat frame side and whose other end is fastened to the floor side, the seat back frame can be used as the seat frame. When the lower anchor is selected and selected, the rotation of the seat back frame is allowed while being pivotally supported by one end of the bracket, so that the reclining of the seat back and the operation of moving forward can be performed without hindrance. By tilting the bracket at one end, the possibility of improper fastening of the other end of the bracket to the floor due to an assembly error can be avoided.

(III) If the connecting means is constituted by a bracket formed so that one end is tiltably locked to the seat frame side and the other end is fastened to the floor side, the bracket can be installed after the seat is mounted on the floor. Can be installed later, which can simplify the manufacturing process of the seat itself as compared with the case where the brackets are pre-assembled and the brackets may interfere with other parts when installing the seat on the floor. Therefore, the work of taking the seat into the vehicle body can be facilitated, and further, the difference in the specification of the seat due to the presence or absence of the lower anchor can be eliminated to reduce the manufacturing cost.

[Brief description of the drawings]

FIG. 1 is a side view in which an example of an embodiment of the present invention is partially cut and shown.

FIG. 2 is an enlarged view showing a part II of FIG. 1 in a used state.

FIG. 3 is a perspective view of the seat of FIG. 1 as viewed from the back side.

FIG. 4 is a side view showing another embodiment of the present invention with a part cut away.

FIG. 5 is a perspective view showing a mounting state of the bracket of FIG. 4;

FIG. 6 is a perspective view showing a modification of the bracket of FIG. 5;

FIG. 7 is a side view showing a still another embodiment of the present invention with a part thereof cut away.

FIG. 8 is a perspective view showing a mounting state of the bracket of FIG. 7;

FIG. 9 is a perspective view showing a modification of the bracket of FIG. 8;

FIG. 10 is a side view showing another embodiment of the present invention with a part cut away.

FIG. 11 is a perspective view showing another modification of the bracket of FIG. 8;

FIG. 12 is a perspective view showing still another modification of the bracket of FIG. 8;

FIG. 13 is a sectional view showing an example of a conventional vehicle seat.

14 is an enlarged perspective view of a lower anchor used in the vehicle seat of FIG.

FIG. 15 is a perspective view showing another example of a conventional vehicle seat.

FIG. 16 is a longitudinal sectional side view showing still another example of the conventional vehicle seat.

[Explanation of symbols]

 Reference Signs List 1 floor 4 lower anchor 9 seat back frame (seat frame) 10 seat cushion frame (seat frame) 11 bracket 11x split piece 11y split piece 16 child seat

Claims (4)

[Claims] 1. A vehicle seat in which lower anchors for fixing a child seat are mounted at a plurality of positions in a vehicle width direction of a seat frame, at least a part of a lower anchor to be mounted on a seat frame side or a vicinity thereof is connected to a floor side via a connecting means. A vehicle seat characterized by being connected to a vehicle. 2. The connecting means according to claim 1, wherein the connecting means is constituted by a bracket formed so that one end thereof can be tiltably fitted to the seat frame side and the other end can be fastened to the floor side. Vehicle seat. 3. The connecting means according to claim 1, wherein said connecting means is constituted by a bracket formed so that one end is tiltably locked to a seat frame side and the other end is fastened to a floor side. Vehicle seat. 4. The connecting means according to claim 1, wherein the connecting means is divided into a seat frame-side split piece and a floor-side split piece and both split pieces can be appropriately engaged and connected. Vehicle seat.