JP6809326B2 - Vehicle seat - Google Patents

Description

The present application relates to a vehicle seat that is slidably mounted on the vehicle.

In the vehicle seat described in Patent Document 1, the anchor pin and the lifter link are fixed to the movable rail via the bracket. Anchor pins are members to which seat belts are connected. The lifter link is a plate-shaped link member for supporting the cushion frame. The movable rail, together with the fixed rail, constitutes a seat slide device.

JP-A-2017-30497

In the vehicle seat described in Patent Document 1, the mounting portion to which the anchor pin is attached and the connecting portion to which the lifter link is connected are provided at positions shifted in the seat width direction.
Therefore, when a slide device, that is, a cover covering the lower end side of the vehicle seat is provided, the cover is provided with at least two slit-shaped cuts. That is, the first slit is a cut for moving the mounting portion. The second slit is a cut for moving the connecting portion.

The present application discloses an example of a vehicle seat that is slidable with respect to a vehicle and can have one slit of a cover that covers the lower end side of the vehicle seat.

The vehicle seat is a bracket (13) for supporting the cushion frame (9) from below, and is a bracket (13) having a plate-shaped support portion (13A) and a support portion among the brackets (13). A mounting portion (13B) provided above (13A) and provided with a belt anchor (16) to which a seat belt is connected, and a support portion (13B) of the bracket (13). It is provided above 13A) and includes a connecting portion (13C) to which the cushion frame (9) is directly or indirectly connected.

As a result, if a cover is provided on the lower end side of the vehicle seat according to the present application, it is sufficient that the slit required for the cover has a cut for the support portion (13A) to move. That is, in the present application, it is possible to obtain a vehicle seat capable of having one slit of the cover covering the lower end side of the vehicle seat.

The cover may be another cover such as a "dedicated cover" for covering the lower end side of the vehicle seat and a "cover using a rug such as a carpet already installed on the vehicle".
The connecting portion (13C) has a structure in which the cushion frame (9) is indirectly connected via a lifter link or the like, or a structure in which the cushion frame (9) is directly connected without a lifter link or the like. Any of these configurations may be used.

The following configuration may be used.
That is, a support portion (13A) provided on the upper surface of the movable rail (11B) for supporting the cushion frame (9) from below, and a plate-shaped support portion (13A) and a support portion. A mounting portion (13B) provided above the (13A), and above the mounting portion (13B) provided with a belt anchor (16) to which the seat belt is connected, and a support portion (13A). It may be configured to include a connecting portion (13C) provided and to which the cushion frame (9) is directly or indirectly connected.

As a result, similarly to the above, it is possible to obtain a vehicle seat capable of having one slit of the cover covering the lower end side of the vehicle seat.
It is desirable that the mounting portion (13B) and the supporting portion (13A) are integrally molded products made of a metal plate. As a result, it is possible to reliably secure the strength of the mounting portion (13B), which is likely to receive a large load.

It is desirable that the connecting portion (13C) is welded and fixed to at least one of the supporting portion (13A) and the mounting portion (13B). As a result, the connecting portion (13C) can be securely fixed to the supporting portion (13A).

It is desirable that the connecting portion (13C) is welded and fixed at a position shifted to the front side of the seat with respect to the belt anchor (16) and a position shifted to the rear side of the seat with respect to the belt anchor (16). As a result, the connecting portion (13C) can be fixed at a position avoiding the belt anchor (16).

The mounting portion (13B) is displaced to one end side in the seat width direction with respect to the support portion (13A), and the connecting portion (13C) is displaced to the other end side in the seat width direction with respect to the support portion (13A). Is desirable. As a result, the connecting portion (13C) can be brought close to the supporting portion (13A), so that the rigidity of the connecting portion (13C) can be increased.

That is, the positions of the connecting portion (13C) and the mounting portion (13B) in the seat width direction are immovable with respect to the vehicle regardless of the type of the vehicle. Therefore, if the mounting portion (13B) is not displaced with respect to the support portion (13A) in the seat width direction, the connecting portion (13C) and the support portion (13A) are displaced from each other in the seat width direction. "Dimensions" will inevitably increase.

When the "deviation dimension" becomes large, a large bending moment and twisting moment are likely to be generated in the connecting portion (13C), so that the rigidity of the connecting portion (13C) may decrease.
However, the mounting portion (13B) is displaced toward one end side in the seat width direction with respect to the support portion (13A), and the connecting portion (13C) is displaced toward the other end side in the seat width direction with respect to the support portion (13A). In this case, the "deviation dimension" is smaller than that in the configuration in which the mounting portion (13B) is not displaced with respect to the support portion (13A) in the seat width direction. Therefore, the rigidity of the connecting portion (13C) can be increased.

It is desirable that the lifter link (15A) swingably connected to the cushion frame (9) is swingably connected to the other end side of the connecting portion (13C) in the seat width direction.

Incidentally, the reference numerals in the parentheses are examples showing the correspondence with the specific configurations and the like described in the embodiments described later, and the present invention is limited to the specific configurations and the like shown in the symbols in the parentheses. It's not something.

It is a figure which shows a part of the vehicle seat 1 which concerns on embodiment of this invention. It is a side view of the support bracket 13 which concerns on embodiment of this invention. It is a side view of the seat rear end side of the support bracket 13 which concerns on embodiment of this invention. It is a figure which shows the horizontal cross section of the support bracket 13 which concerns on embodiment of this invention on the seat rear end side. It is an exploded perspective view of the seat rear end side of the support bracket 13 which concerns on embodiment of this invention. It is a figure which shows the vertical side of the seat rear end side of the support bracket 13 which concerns on embodiment of this invention. It is a figure which shows the state which the cover 20 is attached to the vehicle seat 1 which concerns on embodiment of this invention.

The "embodiment of the invention" described below is an example of an embodiment belonging to the technical scope of the present invention. That is, the matters specifying the invention described in the claims are not limited to the specific configuration, structure, etc. shown in the following embodiments.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The arrows and the like indicating the directions attached to each figure are described in order to make it easier to understand the relationship between each figure. The present invention is not limited to the directions attached to each figure.

At least one member or part described with a reference numeral is provided unless otherwise specified such as "one". That is, if there is no notice such as "one", two or more of the members may be provided. The term "seated person" as used in the present specification means a occupant of a vehicle or a person who uses a vehicle seat. Therefore, the seated person includes a person who is not actually seated.

(First Embodiment)
1. 1. Outline of Vehicle Seat In the present embodiment, the present invention is applied to a vehicle seat mounted on a vehicle. As shown in FIG. 1, the vehicle seat 1 includes at least a seat cushion 3, a seat back 5, and the like.

The seat cushion 3 is a portion for supporting the buttocks of the seated person. The seat back 5 is a portion for supporting the back of the seated person. The cushion frame 9 constitutes the skeleton of the seat cushion 3.

The cushion frame 9 has at least a pair of side frames 9A and 9B and a pair of connecting members 9C and 9D. The side frames 9A and 9B are members arranged on both sides in the seat width direction and extending in the front-rear direction of the seat. The pair of connecting members 9C and 9D are members that extend in the seat width direction and connect the pair of side frames 9A and 9B.

A pair of slide devices 11 and 12 are arranged on the lower side of the cushion frame 9. Each of the slide devices 11 and 12 is a device that slidably supports the cushion frame 9, that is, the vehicle seat 1.

The slide device 11 is arranged on one end side in the seat width direction (in the present embodiment, the left end side of the seat). The slide device 12 is arranged on the other end side in the seat width direction (in the present embodiment, the right end side of the seat).

Each of the pair of slide devices 11 and 12 has fixed rails 11A and 12A and movable rails 11B and 12B and the like. The fixed rails 11A and 12A are fixed to the vehicle side. The movable rails 11B and 12B are slidable with respect to the corresponding fixed rails 11A and 12A.

The cushion frame 9 is indirectly supported by the corresponding movable rails 11B and 12B via a pair of support brackets 13 and 14. Specifically, the cushion frame 9 is indirectly connected to the support brackets 13 and 14 via a plurality of lifter links 15A to 15C.

The upper end sides of the lifter links 15A and 15B are swingably connected to the side frame 9A of the cushion frame 9. The lower ends of the lifter links 15A and 15B are swingably connected to the support bracket 13.

The upper end sides of the lifter links 15C and 15D are swingably connected to the side frame 9B of the cushion frame 9. The lower ends of the lifter links 15C and 15D are swingably connected to the support bracket 14.

A belt anchor 16 is provided on the rear end side of the seat of the support bracket 13. The belt anchor 16 is a member to which a seat belt (not shown) is connected and receives tension acting on the seat belt.

The seat belt has a tongue-side belt to which a tongue plate (not shown) is connected, a buckle-side belt to which a buckle (not shown) is connected, and the like. A buckle-side belt is connected to the belt anchor 16.

2. 2. Details of the Belt Anchor Side Support Bracket The support bracket 13 extends along the extension direction of the movable rail 11B. As shown in FIG. 2, the lifter link 15B is swingably connected to one end side of the support bracket 13 in the extending direction (in the present embodiment, the front side of the seat).

A lifter link 15A and a belt anchor 16 are provided on the other end side of the support bracket 13 in the extending direction (in the present embodiment, the rear side of the seat). As shown in FIG. 3, a plate-shaped support portion 13A is provided on the lower end side of the support bracket 13. The support portion 13A is a plate portion for supporting the cushion frame 9 from the lower side. The thickness direction of the support portion 13A substantially coincides with the sheet width direction.

A mounting portion 13B and a connecting portion 13C are provided on the upper side of the support bracket 13 above the support portion 13A. The mounting portion 13B is a portion to which the belt anchor 16 is fixed. The connecting portion 13C is a portion where the lower end side of the lifter link 15A is connected via the connecting pin 15E (see FIG. 6).

As shown in FIG. 5, the mounting portion 13B and the supporting portion 13A are integrally molded products made of a metal plate. That is, the mounting portion 13B and the support portion 13A are integrally molded together with the support bracket 13 when the support bracket 13 is press-molded.

The connecting portion 13C is provided on a part of the connecting bracket 13D which is a separate member from the supporting portion 13A. The connecting portion 13C, that is, the connecting bracket 13D is welded and fixed to at least one of the supporting portion 13A and the mounting portion 13B.

"The connecting bracket 13D is welded and fixed to at least one of the support portion 13A and the mounting portion 13B" means that the connecting bracket 13D is integrally molded with the support portion 13A and the mounting portion 13B in the support bracket 13. It means that it is welded.

In other words, the support bracket 13 is configured to have two parts. The first portion is an "integrally molded portion (hereinafter, referred to as a support bracket main body 13E)". The second part is "a part that is manufactured as a separate part such as the connecting bracket 13D and then integrated with the support bracket main body 13E by welding or the like".

As shown in FIG. 4, the connecting portion 13C, that is, the seat front end side of the connecting bracket 13D is welded and fixed to the support bracket body at a position shifted to the front side of the seat with respect to the belt anchor 16. The seat rear end side of the connecting bracket 13D is welded and fixed to the support bracket body at a position shifted to the seat rear side with respect to the belt anchor 16.

The mounting portion 13B is displaced from the support portion 13A to one end side in the seat width direction (in the present embodiment, the left end side of the seat). That is, the mounting portion 13B according to the present embodiment is a portion where a part of the support bracket main body 13E is plastically displaced toward one end side in the seat width direction with respect to the support portion 13A (see FIG. 6).

The connecting portion 13C is deviated from the support portion 13A toward the other end side in the seat width direction (in the present embodiment, the seat right end side). Therefore, of the connecting bracket 13D, the seat front end side portion 13G and the rear end side portion 13H of the connecting portion 13C are bent so as to be close to the supporting portion 13A side (see FIG. 4).

The lifter link 15A connected to the connecting portion 13C is connected to the side of the connecting portion 13C opposite to the supporting portion 13A in the seat width direction. That is, the lifter link 15A is connected to the other end side (in this embodiment, the right end side of the seat) of the connecting portion 13C in the seat width direction (see FIG. 5).

The reinforcing portion 13F shown in FIG. 6 is a member that reinforces the supporting portion 13A. The reinforcing portion 13F is welded to the support bracket main body 13E. The support bracket 14 provided on the other end side in the seat width direction has substantially the same configuration as the support bracket 13 except that the connecting portion 13C, that is, the connecting bracket 13D is not provided.

That is, as shown in FIG. 1, the support bracket 14 has a connecting portion (not shown) to which the lifter link 15C is connected on the upper side of the plate-shaped supporting portion 14A. The connecting portion and the supporting portion 14A are integrally molded on a metal plate.

3. 3. Features of the vehicle seat according to the present embodiment Of the support brackets 13 and 14, a connecting portion 13C is provided above the plate-shaped support portions 13A and 14A. In the case of the support bracket 13, the mounting portion 13B is also provided above the support portion 13A.

As a result, as shown in FIG. 7, when the cover 20 is provided on the lower end side of the vehicle seat 1, the slits required for the cover 20 are sufficient if there is a cut for the support portions 13A and 14A to move. Is. That is, it is possible to have one slit 20A of the cover 20 that covers the lower end side of the vehicle seat 1.

The cover 20 includes a "dedicated cover 20" for covering the lower end side of the vehicle seat 1, that is, the slide devices 11 and 12, and a "cover using a rug such as a carpet already installed on the vehicle". It may be a cover. That is, the cover 20 may be either a component of the vehicle seat 1 or a component on the vehicle side.

The mounting portion 13B and the supporting portion 13A are integrally molded products made of a metal plate. This makes it possible to reliably secure the strength of the mounting portion 13B. That is, there is a high possibility that a large load is input to the mounting portion 13B via the seat belt. Therefore, it is highly necessary to secure the strength of the mounting portion 13B.

The connecting portion 13C is welded and fixed to at least one of the supporting portion 13A and the mounting portion 13B. As a result, the connecting portion 13C can be reliably fixed to the supporting portion 13A.
The connecting portion 13C is welded and fixed at at least two positions. As a result, the connecting portion 13C can be fixed at a position avoiding the belt anchor 16. The first position is a position shifted to the front side of the seat with respect to the belt anchor 16. The second position is a position shifted to the rear side of the seat with respect to the belt anchor 16.

The mounting portion 13B is displaced to one end side in the seat width direction with respect to the supporting portion 13A. The connecting portion 13C is displaced toward the other end side in the seat width direction with respect to the supporting portion 13A. As a result, the connecting portion 13C can be brought close to the supporting portion 13A, so that the rigidity of the connecting portion 13C can be increased.

That is, the positions of the connecting portion 13C and the mounting portion 13B in the seat width direction are immovable with respect to the vehicle regardless of the type of the vehicle. Therefore, if the mounting portion 13B is not displaced with respect to the support portion 13A in the seat width direction, the “deviation dimension ΔW1 (see FIG. 4)” between the connecting portion 13C and the support portion 13A in the seat width direction. Will inevitably grow.

In other words, if the mounting portion 13B is not displaced with respect to the supporting portion 13A in the seat width direction, the position of the mounting portion 13B coincides with the supporting portion 13A. Therefore, the deviation dimension ΔW1 is the sum of ΔW1 and ΔW2 shown in FIG.

That is, the "deviation dimension ΔW1" between the connecting portion 13C and the supporting portion 13A in the sheet width direction is inevitably large. When the "deviation dimension ΔW1" becomes large, a large bending moment and twisting moment are likely to be generated in the connecting portion 13C, so that the rigidity of the connecting portion 13C may decrease.

On the other hand, in the present embodiment, the mounting portion 13B is displaced toward one end side in the seat width direction with respect to the support portion 13A, and the connecting portion 13C is displaced toward the other end side in the seat width direction with respect to the support portion 13A. Is.

Therefore, the "deviation dimension ΔW1" is smaller than the configuration in which the mounting portion 13B is not displaced with respect to the support portion 13A in the seat width direction. That is, since ΔW2 is not included in the “deviation dimension ΔW1” according to the present embodiment, the rigidity of the connecting portion 13C can be increased.

The lifter link 15A connected to the connecting portion 13C is connected to the side of the connecting portion 13C opposite to the supporting portion 13A in the seat width direction. This makes it possible to easily secure the required swing angle of the lifter link 15A.

That is, if the lifter link 15A is connected to the connecting portion 13C on the same side as the supporting portion 13A, the lifter link 15A and the connecting bracket 13D may interfere with each other when the lifter link 15A swings. There is.

However, if the lifter link 15A is connected to the connecting portion 13C on the opposite side of the supporting portion 13A, the lifter link 15A and the connecting bracket 13D may interfere with each other when the lifter link 15A swings. Small (see Figure 5). Therefore, it is possible to easily secure the required swing angle of the lifter link 15A.

(Other embodiments)
In the above-described embodiment, the connecting portion 13C has a configuration in which the cushion frame 9 is indirectly connected via the lifter link 15A. In the embodiments described above, however, the inventions disclosed herein are not limited thereto. That is, for example, the cushion frame 9 may be directly connected without passing through the lifter link 15A or the like.

In the vehicle seat according to the above-described embodiment, the movable rails 11B and 12B of the slide device 11 are provided with the support portions 13A and 14A on the support brackets 13 and 14. However, the invention disclosed in the present specification is not limited to this.

That is, for example, the movable rails 11B and 12B may be integrally provided with the support portions 13A and 14A, that is, the movable rails 11B and 12B may be integrally provided with the support brackets 13 and 14. In the case of this configuration, the support portions 13A and 14A are provided on the upper surfaces of the movable rails 11B and 12B.

The vehicle seat 1 according to the above-described embodiment has a configuration in which the vehicle seat 1 has a slide device 11. However, the invention disclosed in the present specification is not limited to this. That is, for example, the vehicle seat 1 may not have the slide device 11, and the slide device 11 may be a component on the vehicle side.

In the above-described embodiment, the mounting portion 13B and the supporting portion 13A are integrally molded products made of a metal plate. However, the invention disclosed in the present specification is not limited to this. That is, for example, the mounting portion 13B may be manufactured as a separate member from the support portion 13A and then integrated with the support portion 13A by welding or the like.

In the above-described embodiment, the connecting portion 13C is provided on a part of the connecting bracket 13D which is a separate member from the support portion 13A. However, the invention disclosed in the present specification is not limited to this. That is, for example, the connecting portion 13C and the supporting portion 13A may be integrally molded products made of a metal plate.

The connecting portion 13C according to the above-described embodiment was welded and fixed at a position shifted to the front side of the seat with respect to the belt anchor 16 and a position shifted to the rear side of the seat with respect to the belt anchor 16. However, the invention disclosed in the present specification is not limited to this.

In the above-described embodiment, the mounting portion 13B is displaced toward one end side in the seat width direction with respect to the support portion 13A, and the connecting portion 13C is displaced toward the other end side in the seat width direction with respect to the support portion 13A. However, the invention disclosed in the present specification is not limited to this.

That is, for example, only the mounting portion 13B may be displaced from the support portion 13A in the seat width direction, or only the connecting portion 13C may be displaced from the support portion 13A in the seat width direction.

In the above-described embodiment, the lifter link 15A connected to the connecting portion 13C is connected to the side of the connecting portion 13C opposite to the supporting portion 13A in the seat width direction. However, the invention disclosed in the present specification is not limited to this. That is, the lifter link 15A may be connected to the same side as the support portion 13A of the connecting portion 13C in the seat width direction.

In the above-described embodiment, the vehicle seat according to the present invention is applied to an ordinary passenger car. However, the application of the present invention is not limited to this, and can be applied to other seats for automobiles or seats used for vehicles such as railroad vehicles, ships and aircraft.

Furthermore, the present invention is not limited to the above-described embodiment as long as it conforms to the gist of the invention described in the claims. Therefore, at least two of the plurality of embodiments described above may be combined.

1 ... Vehicle seat 3 ... Seat cushion 5 ... Seat back 9 ... Cushion frame 11 ... Slide device 11A ... Fixed rail 11B ... Movable rail 13 ... Support bracket 13A ... Support part 13B ... Mounting part 13C ... Connecting part 13D ... Connecting bracket 13E ... Support bracket body 15A to 15C ... Lifter link 16 ... Belt anchor 20 ... Cover 20A ... Slit

Claims (7)

In the vehicle seat mounted on the vehicle so that it can slide with respect to the vehicle
A bracket for supporting the cushion frame from below, and a bracket having a plate-shaped support portion,
Of the brackets, a mounting portion provided above the support portion and provided with a belt anchor to which a seat belt is connected, and a mounting portion.
A vehicle seat having a connecting portion of the bracket provided above the supporting portion and to which the cushion frame is directly or indirectly connected. In the vehicle seat mounted on the vehicle
A slide device that is arranged on the lower side of the cushion frame and slidably supports the cushion frame, and has a fixed rail and a movable rail that is slidable with respect to the fixed rail.
A support portion provided on the upper surface of the movable rail for supporting the cushion frame from below, and a plate-shaped support portion and a support portion.
A mounting portion provided above the support portion and provided with a belt anchor to which a seatbelt is connected, and a mounting portion.
A vehicle seat provided above the support portion and provided with a connecting portion to which the cushion frame is directly or indirectly connected. The vehicle seat according to claim 1 or 2, wherein the mounting portion and the supporting portion are integrally molded products made of a metal plate. The vehicle seat according to claim 3, wherein the connecting portion is welded and fixed to at least one of the support portion and the mounting portion. The vehicle seat according to claim 4, wherein the connecting portion is welded and fixed at a position shifted to the front side of the seat with respect to the belt anchor and a position shifted to the rear side of the seat with respect to the belt anchor. The mounting portion is displaced to one end side in the seat width direction with respect to the support portion.
The vehicle seat according to claim 5, wherein the connecting portion is displaced toward the other end side in the seat width direction with respect to the support portion. A lifter link that is swingably connected to the cushion frame is provided.
The vehicle seat according to claim 6, wherein the lifter link is swingably connected to the other end side of the connecting portion in the seat width direction.