Backrest structure and seat
By designing the backrest structure of the integrated backrest side plate and the adapter, the existing sofa backrest structure is complicated, with many assembly processes and high cost, and compatibility with seat frame structures of different widths is achieved, which improves assembly efficiency and reduces costs.
Patent Information
- Application Number
- CN202421752138.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-23
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-23
AI Technical Summary
The existing sofa backrest structure is complex, with many assembly processes and high cost, making it difficult to match different seat frame structures.
A backrest structure including an integrated backrest side plate and an adapter is designed. The inner and outer sides of the backrest side plate can be connected to the adapter, and by selectively fixing on the fixed portions at different positions, compatibility with the seat frame structures of different widths is achieved.
The assembly process is simplified, the assembly efficiency is improved, the manufacturing cost is reduced, and the assembly and flexible switching between functional and fixed positions is achieved.
Smart Images
Figure CN222898677U_ABST
Abstract
Claims
1. A backrest structure, characterized in that: It includes a pair of backrest side panels and a pair of adapters, the backrest side panels include an integrally formed side panel body and a pad, the pad is protruding inward from the lower part of the side panel body; the pad is provided with a first fixing portion away from the side panel body and a second fixing portion close to the side panel body, the adapter can be selectively connected to the first fixing portion or the second fixing portion.
2. The backrest structure according to claim 1, characterized in that: The cushion block comprises a side wall and a mounting wall, wherein the side wall is perpendicular to the side plate body, and the mounting wall is connected to a side of the side wall away from the side plate body; and the first fixing portion is arranged on the mounting wall.
3. The backrest structure according to claim 2, characterized in that: The side wall and the mounting wall form a cavity, the cavity is connected to the outer side of the backrest side panel, a plurality of positioning ribs are arranged in the cavity, and the positioning ribs extend from the inner side of the cushion block to the outer side of the cushion block; the second fixing portion is arranged at one end of the positioning rib close to the side panel body.
4. The backrest structure according to claim 3, characterized in that: The first fixing portion and the second fixing portion are both tubular and connected as a whole; the first fixing portion is recessed toward the side close to the cavity relative to the installation wall, and the second fixing portion is recessed toward the side close to the cavity relative to the outer end of the positioning rib.
5. The backrest structure according to claim 1, characterized in that: The adapter comprises a connecting plate and a clamping portion, wherein the connecting plate is fixed to the cushion block, and a spring sheet is arranged on a side of the clamping portion away from the cushion block.
6. The backrest structure according to claim 5, characterized in that: The front and rear ends of the connecting plate are respectively folded toward a side away from the cushion block to form flanges, and the flanges on both sides extend toward each other; the connecting plate and the flanges together form a plug-in slot.
7. The backrest structure according to claim 5, characterized in that: The adapter also includes a pair of positioning arms, and the pair of positioning arms extend from the connecting plate to the front and rear sides respectively.
8. The backrest structure according to claim 1, characterized in that: The adapter is provided with a fixing hole, and the fixing hole selectively cooperates with the first fixing part or the second fixing part through a fastener to achieve the fixing of the adapter and the cushion block.
9. The backrest structure according to claim 8, characterized in that: The adapter is provided with a sinking platform protruding toward a side close to the cushion block, and the fixing hole is provided on the sinking platform.
10. The backrest structure according to claim 1, characterized in that: The material of the backrest side plate is plastic; the material of the adapter is plastic or metal.
11. A seat, characterized in that: The invention comprises a seat frame structure, a pair of seat frame connectors and a backrest structure as claimed in any one of claims 1 to 10, wherein the seat frame connectors connect the seat frame structure and the backrest structure.
12. The sitting device according to claim 11, characterized in that: The seat frame connecting part includes a backrest connecting part and a seat frame connecting part. The backrest connecting part is plugged into a side of the adapter away from the cushion block, and the seat frame connecting part is fixed to the seat frame structure.
13. The sitting device according to claim 12, characterized in that: The backrest connecting portion is provided with an opening which cooperates with the adapter.