Laser welding device and laser welding method
US-2022152736-A1 · May 19, 2022 · US
Seat frame
US12325342B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12325342-B2 |
| Application number | US-202118033633-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 26, 2021 |
| Priority date | Nov 17, 2020 |
| Publication date | Jun 10, 2025 |
| Grant date | Jun 10, 2025 |
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Abstract
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A seat frame includes: a plate member; and a bar member joined to the plate member, the bar member including a planar portion on at least part of a side surface of the bar member, wherein the plate member and the bar member are joined to each other by a welded portion including a base portion configured to: extend in a longitudinal direction of the bar member; and have a central line positioned closer to a position at which a load from a user is applied upon use of the seat frame than a central portion of the bar member, the central portion being at a center of a length of the bar member, the length being orthogonal to the longitudinal direction of the bar member, the position being in an area of contact between the plate member and the planar portion.
First claim
Opening claim text (preview).
The invention claimed is: 1. A seat frame comprising: a plate member; and a bar member joined to the plate member, the bar member including a planar portion on at least part of a side surface of the bar member, wherein a planar portion of the plate member and the planar portion of the bar member are joined to each other by a welded portion including a base portion configured to: extend in a longitudinal direction of the bar member; and have a central line positioned closer to a position at which a load from a user is applied upon use of the seat frame than a central portion of the bar member, the central portion being at a center of a length of the bar member, the length being orthogonal to the longitudinal direction of the bar member, the position being in an area of contact between the plate member and the planar portion, wherein the welded portion includes: a first extended portion configured to extend linearly beyond the central portion from one end of the base portion in a direction intersecting the longitudinal direction of the bar member; and a second extended portion configured to extend linearly beyond the central portion from an other end of the base portion in a direction intersecting the longitudinal direction of the bar member. 2. The seat frame according to claim 1 , wherein the welded portion is provided on an opposite side of the central portion of the bar member, the central portion being at the center of the length orthogonal to the longitudinal direction of the bar member, the opposite side being opposite to a side where an outer edge of the plate member is. 3. The seat frame according to claim 1 , wherein the welded portion further includes: a third extended portion configured to extend from an opposite end of the first extended portion in the longitudinal direction of the bar member, the opposite end being opposite to an end of the first extended portion, the end being connected to the base portion; and a fourth extended portion configured to extend from an opposite end of the second extended portion in the longitudinal direction of the bar member, the opposite end being opposite to an end of the second extended portion, the end being connected to the base portion. 4. The seat frame according to claim 1 , wherein the welded portion further includes: a connecting portion configured to connect an opposite end of the first extended portion and an opposite end of the second extended portion to each other, the opposite end of the first extended portion being opposite to an end of the first extended portion, the end being connected to the base portion, the opposite end of the second extended portion being opposite to an end of the second extended portion, the end being connected to the base portion. 5. The seat frame according to claim 1 , wherein the bar member has a rectangular cross section cut along a plane orthogonal to the longitudinal direction. 6. The seat frame according to claim 1 , wherein the bar member is tubular. 7. The seat frame according to claim 1 , wherein the plate member and the bar member are made of aluminum or an aluminum alloy.
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Frequently asked questions
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- What does patent US12325342B2 cover?
- A seat frame includes: a plate member; and a bar member joined to the plate member, the bar member including a planar portion on at least part of a side surface of the bar member, wherein the plate member and the bar member are joined to each other by a welded portion including a base portion configured to: extend in a longitudinal direction of the bar member; and have a central line positioned…
- Who is the assignee on this patent?
- Nhk Spring Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification B60N2/682. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Jun 10 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 6 related publications on this page (citations in our corpus or others sharing the same primary CPC).