Cushion frame

Abstract

To disclose an example of a cushion frame capable of improving the transmission efficiency of a load on a body when the load is input to the cushion frame.SOLUTION: On one end side and the other end side of a submarine pipe 22 in an extension direction, fixation bracket parts 26, 27 fixed to a body panel are provided. As a result, the cushion frame 2 is configured such that the submarine pipe 22 is fixed directly to the body panel. Accordingly, the transmission efficiency of the load to the body panel when the load is input to the cushion frame 2 can be improved.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present disclosure relates to a cushion frame for a vehicle seat.

Background Art

[0002] For example, in the cushion frame described in Patent Document 1, the longitudinal end portion 44 of the second configuration frame 36 is fixed to the first configuration frame 34, and the upper ends of a plurality of fourth configuration frames 40 are joined to the first configuration frame 34, and the lower ends of those fourth configuration frames 40 are fixed to the vehicle body.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] That is, the second configuration frame 36 of the cushion frame according to Patent Document 1 is configured to be indirectly fixed to the vehicle body via the first configuration frame 34 and the fourth configuration frame 40.

[0005] Therefore, in the cushion frame according to Patent Document 1, it is difficult to efficiently transmit the load input to the cushion frame to the vehicle. The present disclosure discloses an example of a cushion frame in view of this point.

Means for Solving the Problems

[0006] The cushion frame of the vehicle seat preferably includes at least one of the following constituent requirements, for example. That is, the constituent element is a reinforcing member (22) disposed on the front side of the center in the front-rear direction of the seat and on the rear side of the front end of the seat, the reinforcing member (22) extending in the seat width direction across the entire seat width, and bracket portions (26, 27) provided at one end side and the other end side in the extending direction of the reinforcing member (22), the bracket portions (26, 27) being fixed to the vehicle.

[0007] Thereby, in the cushion frame, the reinforcing member (22) can be directly fixed to the vehicle body. Therefore, in the cushion frame, it is possible to improve the transmission efficiency of the load input to the cushion frame to the vehicle.

[0008] Incidentally, the cushion frame may have, for example, the following configuration. That is, when the reinforcing member (22) is the first reinforcing member (22), a second reinforcing member (21) is disposed on the front side of the first reinforcing member (22) and provided across the entire seat width at least on the front end side of the seat, and it is desirable that one end side and the other end side of the second reinforcing member (21) in the seat width direction are fixed to the vehicle.

[0009] Thereby, in the cushion frame, the load input to the first reinforcing member (22) and the second reinforcing member (21) can be transmitted to the vehicle body. Therefore, in the cushion frame, it is possible to further improve the transmission efficiency of the load input to the cushion frame to the vehicle.

[0010] Incidentally, it is desirable that the second reinforcing member (21) is fixed to the vehicle via the first reinforcing member (22). Further, side portions (21A, 21B) extending rearward are provided at one end side and the other end side of the second reinforcing member (21) in the seat width direction, and furthermore, it is desirable that the side portions (21A, 21B) are connected and fixed to the first reinforcing member (22) via connection brackets (28, 29).

[0011] Incidentally, the reference numerals in each of the above parentheses are examples showing the correspondence with the specific configurations and the like described in the embodiments described later, and the present disclosure is not limited to the specific configurations and the like indicated by the reference numerals in the above parentheses.

Brief Description of the Drawings

[0012]

Figure 1

Figure 2

Figure 3

Modes for Carrying Out the Invention

[0013] The following "Embodiments of the Invention" show an example of embodiments belonging to the technical scope of the present disclosure. That is, the invention-specific matters described in the claims are not limited to the specific configurations, structures, and the like shown in the following embodiments.

[0014] This embodiment is an example in which the cushion frame according to the present disclosure is applied to a seat cushion of a seat (hereinafter referred to as a vehicle seat) mounted on a vehicle such as a car. The seat cushion is a part for supporting the buttocks of the seated person.

[0015] In addition, the arrows, hatching, etc. indicating the directions attached to each figure are described to facilitate understanding of the relationships between the figures and the shapes of the members or parts. Therefore, the cushion frame is not limited to the directions attached to each figure.

[0016] The directions shown in each figure are the directions in a state where the vehicle seat according to the present embodiment is assembled to the vehicle. At least one member or part described with a reference numeral is provided at least one, unless otherwise noted such as "one".

[0017] That is, in the case where there is no disclaimer such as "one", two or more of such members may be provided. The cushion frame shown in the present disclosure includes at least one of the components such as the members or parts described with reference numerals, and at least one of the illustrated structural parts.

[0018] (First Embodiment) <1. Overview of Seat Cushion> The seat cushion 1 shown in FIG. 1 is a rear seat cushion for a passenger car. Note that the seat cushion 1 is a so-called bench seat type seat cushion. A bench seat is a seat in which the seating portion is continuously provided in the vehicle width direction.

[0019] As shown in FIG. 1, the seat cushion 1 includes at least a cushion frame 2 and a cushion material (not shown). The cushion material is an elastically deformable member such as urethane foam. Note that the surface of the cushion material is covered with a cover.

[0020] The cushion frame 2 is a member that constitutes the skeleton of the seat cushion 1. The cushion frame 2 is fixed to the vehicle body panel Bd. Note that the body panel Bd is an example of a strength member that constitutes the skeleton of the vehicle.

[0021] <2. Details of Cushion Frame> As shown in FIG. 2, the cushion frame 2 includes at least an outer peripheral pipe 21, a submarine pipe 22, a central panel member 23, and side panels 24 and 25.

[0022] The central panel member 23 is a panel member that is disposed substantially at the center in the width direction of the seat cushion 1 and extends in the seat front-rear direction. Note that the width direction of the seat cushion 1 coincides with the longitudinal direction of the seat cushion 1.

[0023] Each of the side panels 24 and 25 is a panel member extending in the width direction from the central panel member 23. Specifically, the side panel 24 extends from the central panel member 23 to the right side. The side panel 25 extends from the central panel member 23 to the left side.

[0024] Note that the central panel member 23 and the side panels 24 and 25 are made of metal. These panels 23 - 25 are connected to each other by welding. And the rear end side 23A of the central panel member 23 and the tip ends 24A and 25A in the extending directions of the side panels 24 and 25 respectively are fixed to the body panel Bd by fasteners such as bolts.

[0025] The submarine pipe 22 is an example of a first strength member disposed on the front side of the center in the front - rear direction of the seat and on the rear side of the front end of the seat. The submarine pipe 22 extends in the width direction across the entire width direction of the cushion frame 2.

[0026] And fixing brackets 26 and 27 are provided at one end side and the other end side in the extending direction of the submarine pipe 22. The fixing brackets 26 and 27 are parts fixed to the body panel Bd by fixtures such as bolts.

[0027] Specifically, the submarine pipe 22 has a horizontal portion 22A and vertical portions 22B and 22C and is configured in a portal shape, that is, a U - shape or a C - shape. The horizontal portion 22A is a portion extending in a substantially straight line across substantially the entire width direction of the seat cushion 1.

[0028] The vertical portion 22B is a portion extending from one end side in the extending direction of the horizontal portion 22A in a direction intersecting the horizontal portion 22A. The vertical portion 22C is a portion extending from the other end side in the extending direction of the horizontal portion 22A in a direction intersecting the horizontal portion 22A.

[0029] And, fixing brackets 26 and 27 are provided on the tip side in the extending direction of each vertical portion 22B and 22C, that is, on the lower end side of each vertical portion 22B and 22C. Note that the horizontal portion 22A and the vertical portions 22B and 22C according to the present embodiment are integrally formed by bending a single round pipe material.

[0030] The submarine pipe 22 and the fixing brackets 26 and 27 according to the present embodiment are made of metal. Each of the fixing brackets 26 and 27 is integrated with the submarine pipe 22 by welding to one end side and the other end side in the extending direction of the submarine pipe 22, respectively.

[0031] Note that the submarine pipe 22 is a strength member capable of receiving a large downward load acting on the seat cushion 1 when the vehicle has a frontal collision. That is, when a frontal collision occurs, the submarine pipe 22 suppresses the occupant's buttocks from sinking significantly toward the body panel Bd side.

[0032] The outer peripheral pipe 21 is an example of a second strength member disposed on the front side of the submarine pipe 22. The outer peripheral pipe 21 is a member extending across the entire width direction of the seat cushion 1 on the front end side of the seat.

[0033] And, one end side and the other end side in the seat width direction of the outer peripheral pipe 21 are fixed to the body panel Bd. Specifically, the outer peripheral pipe 21 is fixed to the body panel Bd via the submarine pipe 22.

[0034] That is, side portions 21A and 21B extending rearward are provided on one end side and the other end side in the seat width direction of the outer peripheral pipe 21. And, as shown in FIG. 3, connection brackets 28 and 29 are provided on the side portions 21A and 21B.

[0035] The connection brackets 28 and 29 are members that connect the side portions 21A and 21B and the vertical portions 22B and 22C. That is, the side portions 21A and 21B are configured to be connected and fixed to the submarine pipe 22 via the connection brackets 28 and 29.

[0036] Therefore, since the outer peripheral pipe 21 is configured to be connected and fixed to the submarine pipe 22, the outer peripheral pipe 21 is fixed to the body panel Bd via the submarine pipe 22 and the fixing brackets 26 and 27.

[0037] Note that the side portions 21A and 21B are made of metal and are integral with the outer peripheral pipe 21. The connecting brackets 28 and 29 are also made of metal. The connecting brackets 28 and 29 are integrated with the side portions 21A and 21B and the submarine pipe 22 by welding.

[0038] A portion of the outer peripheral pipe 21 extending in the width direction and a portion of the submarine pipe 22 extending in the width direction are connected by at least one (a plurality in this embodiment) connector 30 as shown in FIG. 2.

[0039] Each connector 30 extends in the front-rear direction and connects the outer peripheral pipe 21 and the submarine pipe 22. Note that the submarine pipe 22 is also connected to the center panel member 23 and the side panels 24 and 25.

[0040] The front end side of the center panel member 23 is connected to the outer peripheral pipe 21. A fixing bracket 31 is connected to a portion of the outer peripheral pipe 21 to which the center panel member 23 is connected. The fixing bracket 31 is a member for fixing the outer peripheral pipe 21 to the body panel Bd.

[0041] <3. Features of the cushion frame according to this embodiment> Fixing bracket portions 26 and 27 fixed to the body panel Bd are provided on one end side and the other end side in the extending direction of the submarine pipe 22 according to this embodiment.

[0042] Thereby, in the cushion frame 2, the submarine pipe 22 is directly fixed to the body panel Bd. Therefore, in the cushion frame 2 according to this embodiment, it is possible to improve the transmission efficiency of the load input to the cushion frame 2 to the vehicle.

[0043] One end side and the other end side in the sheet width direction of the outer peripheral pipe 21 are also fixed to the body panel Bd. As a result, in the cushion frame 2, in addition to the load input to the submarine pipe 22, the load input to the outer peripheral pipe 21 can also be transmitted to the vehicle. Therefore, in the cushion frame 2, it is possible to reliably transmit the load input to the cushion frame 2 to the vehicle.

[0044] (Other embodiments) In the above-described embodiment, the outer peripheral pipe 21 was configured to be fixed to the body panel Bd via the submarine pipe 22. However, the present disclosure is not limited to this. That is, the present disclosure may be configured such that, for example, the outer peripheral pipe 21 is directly fixed to the body panel Bd.

[0045] In the above-described embodiment, the submarine pipe 22 was configured to be directly fixed to the body panel Bd. However, the present disclosure is not limited to this. That is, the present disclosure may be configured such that, for example, the outer peripheral pipe 21 is directly fixed to the body panel Bd and the fixing bracket portions 26 and 27 are connected to the outer peripheral pipe 21.

[0046] In the above-described embodiment, the fixing bracket portions 26 and 27 were configured to be welded to the submarine pipe 22. However, the present disclosure is not limited to this. That is, the present disclosure may be configured such that, for example, bolt holes are provided in the submarine pipe 22 and the holes are used as the fixing bracket portions 26 and 27.

[0047] The outer peripheral pipe 21 and the submarine pipe 22 according to the above-described embodiment were strength members configured by round pipes. However, the present disclosure is not limited to this. That is, the present disclosure may be configured such that, for example, the outer peripheral pipe 21 or the submarine pipe 22 is configured by a square pipe-shaped member or a member having a C-shaped or U-shaped cross section.

[0048] The above-described embodiments were examples in which the present disclosure was applied to a bench seat for a rear seat. However, the present disclosure is not limited thereto. That is, the disclosure is applicable to, for example, a seat cushion of a single-seat that is directly or indirectly fixed to a body panel.

[0049] In the above-described embodiments, a vehicle seat according to the present disclosure was applied to a vehicle. However, the application of the invention disclosed in this specification is not limited thereto. That is, the disclosure can be applied to, for example, seats used in vehicles such as railway vehicles, ships, and aircraft, as well as stationary seats used in theaters, homes, etc.

[0050] Furthermore, the present disclosure only needs to conform to the gist of the disclosure described in the above-described embodiments, and is not limited to the above-described embodiments. Therefore, a configuration in which at least two of the above-described multiple embodiments are combined, or a configuration in which any one of the constituent elements shown in the above-described embodiments or the constituent elements described with reference numerals is abolished may also be acceptable.

Explanation of Reference Numerals

[0051] 1… Seat cushion 2… Cushion frame 21… Outer peripheral pipe 21A, 21B… Side portions 22… Submarine pipe 23… Central panel member 26, 27… Fixing bracket portions 28, 29… Connecting brackets 31… Fixing bracket

Claims

1. In a cushion frame for a vehicle seat, a reinforcing member disposed on the front side of the center in the front-rear direction of the seat and on the rear side of the front end of the seat, the reinforcing member extending in the seat width direction across the entire seat width direction, and bracket portions provided at one end side and the other end side in the extending direction of the reinforcing member, the bracket portions being fixed to the vehicle A cushion frame comprising:

2. When the reinforcing member is a first reinforcing member, a second reinforcing member is provided on the front side of the first reinforcing member and provided across the entire seat width direction at least on the front end side of the seat, The cushion frame according to claim 1, wherein one end side and the other end side in the seat width direction of the second reinforcing member are fixed to the vehicle.

3. The cushion frame according to claim 2, wherein the second reinforcing member is fixed to the vehicle via the first reinforcing member.

4. Side portions extending rearward are provided at one end side and the other end side in the seat width direction of the second reinforcing member, Further, a connecting bracket for connecting the side portion and the first reinforcing member is provided, and the side portion is connected and fixed to the first reinforcing member via the connecting bracket. The cushion frame according to claim 3.

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