JP7227886B2 - cushion frame - Google Patents

Description

The present disclosure relates to a cushion frame of a rear seat cushion mounted on a vehicle in which a power harness is installed.

For example, a cushion frame of a rear seat cushion disclosed in Patent Document 1 includes a frame made of a pipe member extending in the seat width direction. The frame is a frame member that mainly receives a downward load acting on the seat cushion and a load in the front-rear direction of the seat.

JP 2019-38457 A

The cushion frame may be provided with a cushion panel made of a plate material as a member for supporting the buttocks of the seated person. In this case, for example, if the cushion panel is configured to support the load acting on the cushion panel only by the rigidity of the cushion panel, there is a risk that the cushion panel will be greatly deformed so as to be displaced downward.

Therefore, in a vehicle in which a power harness is routed below the cushion panel, when a downward load acts on the cushion panel, the deformed cushion panel and the power harness may interfere with each other. be.

In view of the above points, the present disclosure provides a cushion frame that is applied to a vehicle in which a power harness is routed on the lower side of the cushion panel, and is a cushion capable of suppressing interference between the cushion panel and the power harness. An example of a frame is disclosed.

A cushion frame of a rear seat cushion mounted on a vehicle in which power harnesses (H1, H2) are wired desirably has, for example, at least one of the following constituent requirements.

That is, the constituent elements are a rear end frame (7) arranged on the rear end side of the rear seat cushion and formed of a pipe material extending in the seat width direction, and a power harness when mounted on the vehicle. A cushion panel (9) positioned above (H1, H2) and capable of supporting the buttocks of a seated person, the cushion panel (9) made of a plate material, and the rear of the cushion panel (9) A cover portion (14) that is positioned behind the seat from the end frame (7) and covers the upper side of the power harness (H1, H2) when mounted on the vehicle, and the cover portion (14). The provided load receivers (15A, 15B) are located below the general surface (14A) located above the power harness (H1, H2) and act on the general surface (14A). and planar load receiving portions (15A, 15B) for transmitting a downward load to the vehicle body.

As a result, when a large downward load acts on the cushion frame, that is, the cushion panel (9), the load receiving portions (15A, 15B) come into contact with the vehicle body, causing the cushion panel (9) to move downward. Large displacement can be regulated. Therefore, interference between a portion of the cushion panel (9) including the cover (14) and the power harnesses (H1, H2) can be suppressed.

Note that the cushion frame may have, for example, the following configuration.
That is, the load receiving portions (15A, 15B) are desirably provided on one side and the other side of the general surface (14A) in the seat width direction. As a result, it is possible to reliably prevent the cushion frame from being largely displaced downward.

When no load acts on the general surface (14A) or the cushion panel (9), the load receivers (15A, 15B) are separated from the vehicle body side, and the general surface (14A) or the cushion panel (9) ), the cushion panel (9) or the cover (14) is deformed within the elastic region so that the load receiving portions (15A, 15B) are preferably brought into contact with the vehicle body. Thereby, the deformation of the cushion panel (9) or the cover (14) is within the elastic deformation range.

The gap dimension between the load receivers (15A, 15B) and the vehicle body when no load is applied to the general surface (14A) or the cushion panel (9) is It is desirable that the distance between the general plane (14A) and the power harnesses (H1, H2) is smaller than the distance between them when the power is not acting. This can reliably prevent interference between the cushion panel (9) and the power harnesses (H1, H2).

The cushion frame ( ) is applied to a configuration in which the rear end frame ( 7 ) is connected to the lower side of the cushion panel ( 9 ) without extending over the entire seat width direction of the cushion panel ( 9 ). It is desirable that

Incidentally, the symbols in the parentheses above are examples showing the correspondence with specific configurations and the like described in the embodiments described later, and the present disclosure is limited to the specific configurations and the like indicated by the symbols in the parentheses. not something.

It is a figure which shows the cushion frame which concerns on 1st Embodiment. It is a figure which shows the cushion frame which concerns on 1st Embodiment. It is a figure which shows the shape of the cover part which concerns on 1st Embodiment.

The following "embodiment of the invention" shows an example of an embodiment belonging to the technical scope of the present disclosure. In other words, the matters specifying the invention described in the claims are not limited to the specific configurations, structures, etc. shown in the following embodiments.

The present embodiment is an example in which the cushion frame according to the present disclosure is applied to a seat mounted on a vehicle such as a vehicle (hereinafter referred to as a vehicle seat). Directional arrows and slanted lines in each drawing are provided to facilitate understanding of the relationship between the drawings and the shapes of members or parts.

Therefore, the cushion frame is not limited to the direction shown in each drawing. The direction shown in each drawing is the direction in which the vehicle seat according to the present embodiment is assembled to the vehicle. Figures with hatching are not necessarily cross-sectional views.

At least one member or portion described with at least a reference numeral is provided unless otherwise specified as "one" or the like. In other words, two or more members may be provided unless there is a notice such as "one". The cushion frame shown in the present disclosure includes at least components such as the members or portions labeled and described.

(First embodiment)
1. Overview of Cushion Frame A cushion frame 1 shown in FIG. 1 is a member that forms the skeleton of a rear seat cushion 2 of a vehicle. The seat cushion 2 for the rear seat is a part for supporting the buttocks of the seated person. The cushion frame 1 is fixed to a vehicle floor panel or the like.

Specifically, the cushion frame 1 is provided with fixing stay portions 3A to 3F. The fixing stay portions 3A to 3D are provided on the front end side of the frame body 4. As shown in FIG. The fixing stay portions 3E and 3F are provided at one end and the other end in the seat width direction of the frame body 4 on the seat rear side.

The fixing stay portions 3A to 3F are directly or indirectly fixed to the vehicle by fasteners such as bolts (not shown). The frame main body 4 is a skeleton portion that directly receives the weight of the seated person.

2. Structure of frame body <Overview of frame body>
The frame main body 4 includes at least a front end frame 5, an intermediate frame 6, rear end frames 7 and 8, cushion panels 9 to 11, and the like. The front end frame 5, the intermediate frame 6, and the rear end frames 7 and 8 are metal members made of cylindrical pipe material.

The cushion panels 9 to 11 are members made of metal plates. The cushion panels 9 to 11 are formed into predetermined shapes by subjecting the plate material to plastic working such as press working. The front end frame 5, intermediate frame 6, rear end frames 7 and 8, and cushion panels 9-11 are connected to each other by welding.

<Front frame>
The front end frame 5 has at least a front end pipe 5A, a first side end pipe 5B, a second side end pipe 5C, and the like. The front end pipe 5A is arranged at the front end of the frame body 4 and extends over substantially the entire width of the frame body 4 in the seat width direction.

The first side end pipe 5B connects one end in the seat width direction (the right end in this embodiment) of the front end pipe 5A and the fixing stay portion 3E. The second side end pipe 5C connects the seat width direction other end (in this embodiment, the left end) of the front end pipe 5A and the fixing stay portion 3F.

The front end frame 5 according to this embodiment is an integrally molded product in which a single pipe material is subjected to a bending process to form a front end pipe 5A, a first side end pipe 5B and a second side end pipe 5C. be.

<Intermediate frame>
The intermediate frame 6 is a member positioned between the front end frame 5 and the rear end frames 7 and 8 and extending in the seat width direction so as to pass between the first supply panel 12 and the second supply panel 13. .

The first supply panel 12 is a plate-like member that connects the first side end pipe 5B and the front end pipe 5A. The second supply panel 13 is a plate-like member that connects the second side end pipe 5C and the front end pipe 5A.

<Rear end frame>
The rear end frames 7 and 8 are pipe members arranged on the rear end side of the frame body 4 and extending in the seat width direction. The rear end frame 7 (hereinafter referred to as the first rear end frame 7) connects the cushion panel 9 (hereinafter referred to as the first cushion panel 9) and the cushion panel 11 (hereinafter referred to as the third cushion panel 11). do.

Specifically, one end in the extending direction of the first rear end frame 7 (right end in this embodiment) is welded to the lower surface of the first cushion panel 9 . The other end in the extending direction of the first rear end frame 7 (the left end in this embodiment) is welded to the upper surface of the third cushion panel 11 .

That is, the first rear end frame 7 is connected to the lower side of the first cushion panel 9 without extending over the entire seat width direction of the first cushion panel 9, as shown in FIG.

A rear end frame 8 (hereinafter referred to as a second rear end frame 8) extends in the seat width direction so as to connect the third cushion panel 11 and the fixing stay portion 3F. The second rear end frame 8 extends across the seat width direction of the cushion panel 10 (hereinafter referred to as the second cushion panel 10) and supports the second cushion panel 10 from below.

<First cushion panel>
The first cushion panel 9 is a panel-shaped member molded into a predetermined shape capable of supporting the buttocks of the seated person. The first cushion panel 9 is arranged on one end side of the frame body 4 in the seat width direction. The first cushion panel 9 is supported by the intermediate frame 6, the first rear end frame 7 and the fixing stay portion 3E.

<Second cushion panel>
The second cushion panel 10 is a panel-like member molded into a predetermined shape capable of supporting the buttocks of the seated person. The second cushion panel 10 is arranged on the other end side of the frame body 4 in the seat width direction. The second cushion panel 10 is supported by the intermediate frame 6 , the second rear end frame 8 and the second supply panel 13 .

<Third cushion panel>
The third cushion panel 11 is a member positioned substantially in the seat width direction center of the frame body 4 and extending from the front end frame 5 to the seat rear side. The front end side 11A of the third cushion panel 11 is connected to the front end frame 5 by welding or the like, and the rear end side 11B of the third cushion panel 11 is directly or indirectly fixed to the vehicle by fasteners such as bolts (not shown). be done.

The intermediate frame 6 , the first rear end frame 7 and the second rear end frame 8 are connected to the third cushion panel 11 and supported by the third cushion panel 11 . That is, part of the downward load acting on the intermediate frame 6 , the first rear end frame 7 and the second rear end frame 8 is supported by the third cushion panel 11 .

<Cover>
The first cushion panel 9 is provided with a cover portion 14 as shown in FIG. The cover portion 14 is a portion of the first cushion panel 9 positioned behind the seat relative to the first rear end frame 7 .

As shown in FIG. 3, the cover portion 14 and the first cushion panel 9 cover the upper side of the power harnesses H1 and H2 when the cushion frame 1 is mounted on the vehicle. The power harnesses H1 and H2 according to the present embodiment are electric wires for supplying drive current to an electric motor that generates a large torque, such as an electric motor for vehicle travel (not shown).

The cover portion 14 is provided with load receiving portions 15A and 15B. The load receiving portions 15A and 15B are planar portions positioned below portions of the cover portion 14 positioned above the power harnesses H1 and H2 (hereinafter referred to as general surfaces 14A). The load receiving portions 15A and 15B are capable of transmitting a downward load acting on the general surface 14A to a vehicle body side member Bd (hereinafter referred to as a vehicle body side member Bd).

The load receiving portion 15A (hereinafter referred to as the first load receiving portion 15A) is provided on one end side in the seat width direction with respect to the general surface 14A. A load receiving portion 15B (hereinafter referred to as a second load receiving portion 15B) is provided on the other end side in the seat width direction with respect to the general surface 14A.

That is, the load receiving portions 15A and 15B are provided on one end side and the other end side in the sheet width direction across the general surface 14A. The first load receiving portion 15A and the second load receiving portion 15B are an integrally molded product that is press-molded together with the cover portion 14, that is, the first cushion panel 9, from a plate material.

When a downward load is not acting on the general surface 14A or the first cushion panel 9 (hereinafter abbreviated as the general surface 14A), the first load receiving portion 15A and the second load receiving portion 15B are separated from the vehicle body side. (See Figure 3).

When a downward load acts on the general surface 14A, the first cushion panel 9 (including the cover portion 14) is deformed within the elastic range, thereby causing the first load receiving portion 15A and the second load receiving portion 15B to move. At least one of the contacts the vehicle body side member Bd.

Furthermore, in the present embodiment, the gap dimensions d1 and d2 between the first load receiving portion 15A or the second load receiving portion 15B and the vehicle body side member Bd when no load is acting on the general surface 14A are It is smaller than the distance d3 between the general surface 14A and the power harnesses H1 and H2 when no load is applied.

3. Features of the Cushion Frame According to the Present Embodiment The cover portion 14 has a planar load receiver located below the general surface 14A for transmitting the downward load acting on the general surface 14A to the vehicle body side member Bd. Portions 15A and 15B are provided.

As a result, when a large downward load acts on the cushion frame 1 (first cushion panel 9), the load receiving portions 15A and 15B come into contact with the vehicle body side member Bd, thereby causing the first cushion panel 9 including the cover portion 14 to move. can be restricted from being greatly displaced downward. Therefore, interference between a portion of the first cushion panel 9 including the cover portion 14 and the power harnesses H1 and H2 can be suppressed.

The two load receiving portions 15A and 15B are provided on one side and the other side of the general surface 14A in the seat width direction. Thereby, it is possible to reliably prevent the cushion frame 1 from being largely displaced downward.

When no load is applied to the general surface 14A or the first cushion panel 9, the load receiving portions 15A and 15B are separated from the vehicle body side member Bd, and the general surface 14A or the first cushion panel 9 is loaded. When it acts, the first cushion panel 9 or the cover portion 14 deforms within the elastic region, so that at least one of the first load receiving portion 15A and the second load receiving portion 15B contacts the vehicle body side member Bd. Thereby, the deformation of the first cushion panel 9 or the cover portion 14 is contained within the elastic deformation.

The gap dimensions d1 and d2 between the load receiving portions 15A and 15B and the vehicle body side member Bd when no load is applied to the general surface 14A or the first cushion panel 9 are calculated as follows: It is smaller than the distance d3 between the general surface 14A and the power harnesses H1 and H2 when they are not working. This can reliably prevent interference between the first cushion panel 9 and the power harnesses H1 and H2.

(Other embodiments)
In the above-described embodiment, the cover portion 14 and the first cushion panel 9 are an integrally molded product made of a metal plate. However, the present disclosure is not so limited. That is, the disclosure may be, for example, a configuration in which the cover portion 14 and the first cushion panel 9 are integrated by means of fasteners such as welding or screws.

In the above-described embodiment, the load receiving portions 15A and 15B are provided on one end side and the other end side in the seat width direction with the general surface 14A interposed therebetween. However, the present disclosure is not so limited. That is, the disclosure may be configured such that, for example, only one of the seat width direction one end side and the other end side is provided with the load receiving portion.

In the above-described embodiment, the cover portion 14 and the load receiving portions 15A and 15B are integrally molded products made of a metal plate. However, the present disclosure is not so limited. That is, the disclosure may be, for example, a configuration in which the cover portion 14 and the load receiving portions 15A and 15B are integrated by means of fasteners such as welding or screws.

In the above-described embodiment, when no load is applied to the general surface 14A or the first cushion panel 9, the load receiving portions 15A and 15B are separated from the vehicle body side member Bd. However, the present disclosure is not so limited.

That is, the disclosure may be configured such that the load receiving portions 15A and 15B are in contact with the vehicle body side member Bd even when no load is applied to the general surface 14A or the first cushion panel 9, for example.

In the above-described embodiment, when a load acts on the general surface 14A or the first cushion panel 9, the first cushion panel 9 or the cover portion 14 is configured to deform within the elastic range. However, the present disclosure is not so limited.

That is, the disclosure may be configured such that, for example, the first cushion panel 9 or the cover portion 14 is plastically deformed when a load acts on the general surface 14A or the first cushion panel 9 .

Furthermore, the present disclosure is not limited to the above-described embodiments as long as it conforms to the gist of the disclosure described in the above-described embodiments. Therefore, in the configuration in which at least two of the above-described embodiments are combined, or in the above-described embodiments, any one of the illustrated constituent elements or the constituent elements described with reference numerals is abolished. It may be configured as

Reference Signs List 1... Cushion frame 2... Rear seat cushion 3A to 3F... Fixing stay 4... Frame main body 5... Front end frame 5A... Front end pipe 5B... First side end pipe 5C... Second side end pipe 6... Intermediate frame 7 ... first rear end frame 8... second rear end frame 9... first cushion panel 10... second cushion panel 11... third cushion panel 12... first supply panel 13... second supply panel 14... cover portion 14A... general Surface H1, H2... Power harness

Claims (5)

In a cushion frame for a rear seat cushion mounted on a vehicle in which a power harness is routed,
a rear end frame disposed on the rear end side of the rear seat cushion and made of a pipe material extending in the seat width direction;
a cushion panel that is positioned above the power harness and can support the buttocks of a seated person when mounted on a vehicle, the cushion panel being made of a plate material;
a covering portion, which is a portion of the cushion panel positioned behind the seat relative to the rear end frame, and covers an upper side of the power harness when mounted on a vehicle;
A load receiving portion provided in the cover portion, which is located below a general surface of the cover portion located above the power harness, and receives a downward load acting on the general surface from the vehicle body side. A cushion frame comprising a planar load receiver for transmitting to the 2. The cushion frame according to claim 1, wherein the load bearing portions are provided on one side and the other side of the general surface in the seat width direction. When no load is applied to the general surface or the cushion panel, the load receiving portion is separated from the vehicle body side,
Further, when a load is applied to the general surface or the cushion panel, the cushion panel or the cover portion deforms within an elastic range so that the load receiving portion contacts the vehicle body side. Cushion frame as described. The dimension of the gap between the load receiving portion and the vehicle body when no load is acting on the general surface or the cushion panel is the general surface or the cushion panel when no load is acting on the general surface or the cushion panel. 4. The cushion frame according to claim 3, wherein the cushion frame is smaller than the distance from the power harness. 5. The cushion frame according to any one of claims 1 to 4, wherein the rear end frame is connected to the lower side of the cushion panel without extending over the entire seat width direction of the cushion panel.

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