CN-122008988-A - Seat frame assembly for a vehicle seat, method for producing a seat frame assembly and vehicle seat

Abstract

The application discloses a seat frame assembly of a vehicle seat, a method for manufacturing the seat frame assembly and the vehicle seat. The seat frame assembly includes an integrally formed frame body and a link assembly. The frame body includes a main body plate extending in a first direction and two extension plates extending from the main body plate in a second direction. The two extension plates are spaced apart from each other in the first direction. The frame body is made of a first material and has a first protective layer thereon. The linkage assembly includes a rotating rod extending in a first direction and a drive rod coupled to the rotating rod. The connecting rod assembly is made of a second material and has a second protective layer thereon. The rotating rod is rotatably connected between the two extension plates, and the transmission rod is positioned between the two extension plates. The seat frame assembly is formed by assembling only two parts of the frame body and the connecting rod assembly, so that the structure of the seat frame assembly is simplified, and the seat frame assembly is convenient to manufacture.

Inventors

• WANG MINGZHI
• ZHANG WU
• SUN JIARONG
• LU XUFENG

Assignees

• 延锋国际座椅系统有限公司

Dates

Publication Date

20260512

Application Date

20260326

Claims (17)

1. 1. A seat frame assembly for a vehicle seat, the seat frame assembly comprising: an integrated frame body comprising a main body plate extending in a first direction and two extension plates extending from the main body plate in a second direction at an angle to the first direction, the two extension plates being spaced apart from each other in the first direction, the frame body being made of a first material and having a first protective layer thereon, and The connecting rod assembly comprises a rotating rod extending along the first direction and a transmission rod connected to the rotating rod, wherein the connecting rod assembly is made of a second material which is different from the first material, and a second protective layer which is different from the first protective layer is arranged on the connecting rod assembly; wherein the rotating rod is rotatably connected between the two extension plates, and the transmission rod is positioned between the two extension plates.
2. 2. The bezel assembly of claim 1, wherein the first material is a magnesium alloy, an aluminum alloy, a zinc alloy, or a copper alloy.
3. 3. The bezel assembly of claim 1, wherein the second material is steel.
4. 4. The bezel assembly as recited in claim 3, wherein the second protective layer is an electrophoretic coating formed by electrophoresis of the link assembly.
5. 5. The bezel assembly of claim 1, wherein the number of drive bars is two and two of the drive bars are spaced apart along the first direction; a plastic spacer is disposed between each of the drive rods and the corresponding extension plate, the spacer engaging the rotating rods.
6. 6. The bezel assembly of claim 5, wherein the spacer sleeve comprises: two clamping arms adapted to clamp the rotating rod, and And an elastic connecting part connected between the ends of the two clamping arms facing each other.
7. 7. The bezel assembly of claim 6, wherein the connection is configured with a strength weakened portion.
8. 8. The bezel assembly of claim 6, wherein each of the transfer bars includes a mounting portion coupled to the rotation bar, the mounting portion configured with a limit slot; At least one of the clamping arms of each spacer sleeve is configured with a stop block extending toward the mounting portion of the corresponding drive rod, the stop block being adapted to engage within the stop slot.
9. 9. The bezel assembly as recited in claim 8, wherein said mounting portion has a guide surface facing the respective spacer sleeve, said guide surface having first and second edges opposite each other along a circumferential direction of said rotational lever, said limit slot being adjacent said first edge of said guide surface; The guide surface extends obliquely in the circumferential direction of the rotating lever, and the distance between the second edge and the corresponding extending plate is larger than the distance between the first edge and the corresponding extending plate, and the stopper is adapted to slide from the second edge of the guide surface toward the first edge of the guide surface, through the guide surface, and engage into the stopper groove.
10. 10. The bezel assembly of claim 8, wherein the stopper is coupled to the clamp arm by a resilient coupling tab.
11. 11. The bezel assembly as recited in claim 10, wherein the two ends of the link are connected to the clamp arms and a middle portion of the link is spaced apart from the clamp arms, and wherein the stopper is connected to the middle portion of the link.
12. 12. The seat frame assembly according to claim 1, wherein two of said extension plates are constructed with coupling holes, and both ends of said rotation lever are coupled into two of said coupling holes, respectively.
13. 13. The bezel assembly as recited in claim 12, wherein each end of the rotation lever has a diameter smaller than a diameter of the corresponding connection hole such that there is a receiving gap between each end of the rotation lever and a sidewall of the corresponding connection hole, and a bushing is installed in the receiving gap.
14. 14. The bezel assembly as recited in claim 12, wherein the two ends of the rotation lever gradually decrease in diameter in a direction away from each other, and/or Each end of the rotating rod is configured with a chamfer.
15. 15. A vehicle seat, characterized in that it comprises a seat frame assembly of a vehicle seat according to any one of claims 1 to 14.
16. 16. A method of manufacturing a bezel assembly adapted for manufacturing a bezel assembly of a vehicle seat according to any one of claims 1 to 14, the method comprising: The method comprises the steps of providing a frame body and a connecting rod assembly, wherein the frame body is made of a first material and is provided with a first protective layer, the connecting rod assembly is made of a second material which is different from the first material and is provided with a second protective layer which is different from the first protective layer, connecting holes are formed in two extension plates of the frame body, and the size of each connecting hole is larger than the cross section size of the corresponding end part of the rotating rod; setting the rotating rod to correspond to the interval between the two extending plates; inserting the first end of the rotating rod into the connecting hole of the corresponding extending plate in a clearance fit manner, and spacing the second end of the rotating rod from the other extending plate along the first direction, and And step four, inserting the second end part of the rotating rod into the connecting hole of the corresponding extending plate.
17. 17. The method of claim 16, wherein the number of drive bars is two and two of the drive bars are spaced apart along the first direction; the method further comprises a fifth step, after the fourth step, of providing a spacer sleeve of plastic between each of the drive rods and the corresponding extension plate.

Description

Seat frame assembly for a vehicle seat, method for producing a seat frame assembly and vehicle seat Technical Field The application relates to the technical field of vehicles, in particular to a seat frame assembly of a vehicle seat and a method for manufacturing the seat frame assembly. The application also relates to a vehicle seat comprising the seat frame assembly. Background The interior of the vehicle is provided with a seat. The seat includes a seat frame assembly and a resilient seat cushion disposed on the seat frame assembly. Typically, the bezel assembly is a generally rectangular frame comprised of a bowl, two side plates, and a connecting tube. However, the seat frame assembly has more parts and the assembly process is complicated. In addition, in such a seat frame assembly, a protective layer cannot be formed on the connection pipe, which may adversely affect the quality of the seat frame assembly. Disclosure of Invention In view of the foregoing, a first aspect of the present application provides a seat frame assembly of a vehicle seat. The seat frame assembly includes an integrated frame body including a main body plate extending in a first direction and two extension plates extending from the main body plate in a second direction angled from the first direction, the two extension plates being spaced apart from each other in the first direction, the frame body being made of a first material and having a first protective layer thereon, and a link assembly including a rotating rod extending in the first direction and a driving rod connected to the rotating rod, the link assembly being made of a second material different from the first material and having a second protective layer thereon different from the first protective layer. The rotating rod is rotatably connected between the two extension plates, and the transmission rod is positioned between the two extension plates. In one embodiment, the first material is a magnesium alloy, an aluminum alloy, a zinc alloy, or a copper alloy. In one embodiment, the second material is steel. In one embodiment, the second protective layer is formed by electrophoresis of the link assembly. In one embodiment, the number of drive rods is two and the two drive rods are spaced apart in a first direction, and a spacer sleeve of plastic is provided between each drive rod and the corresponding extension plate, the spacer sleeve being engaged with the rotating rod. In one embodiment, the spacer sleeve comprises two clamping arms adapted to clamp the rotating rod, and a resilient connecting portion connected between the ends of the two clamping arms facing each other. In one embodiment, the connection portion is configured with a strength weakening portion extending in the first direction. In one embodiment, each drive rod includes a mounting portion coupled to the rotatable rod, the mounting portion being configured with a limit slot, and at least one of the clamping arms of each spacer sleeve being configured with a stop block extending toward the mounting portion of the corresponding drive rod, the stop block being adapted to engage within the limit slot. In one embodiment, the mounting portion has a guide surface facing the respective spacer bush, the guide surface having a first edge and a second edge opposite to each other in the circumferential direction of the rotation lever, the limit groove being adjacent to the first edge of the guide surface, the guide surface extending obliquely in the circumferential direction of the rotation lever, and the distance between the second edge and the respective extension plate being greater than the distance between the first edge and the respective extension plate, the limit block being adapted to slide from the second edge of the guide surface towards the first edge of the guide surface past the guide surface and engage into the limit groove. In one embodiment, the stopper is connected to the clamping arm by an elastic connection lug. In one embodiment, the two ends of the connecting lug are connected with the clamping arms, the middle part of the connecting lug is spaced from the clamping arms, and the limiting block is connected with the middle part of the connecting lug. In one embodiment, the two extension plates are configured with connection holes, and both ends of the rotation rod are respectively connected to the two connection holes. In one embodiment, the diameter of each end of the rotating rod is smaller than the diameter of the corresponding connecting hole, such that there is a receiving gap between each end of the rotating rod and the side wall of the corresponding connecting hole, within which a bushing is mounted. In one embodiment, the two connection holes have outer ports facing away from each other in a first direction, and the outer ports of each connection hole are configured in a flared shape, the bushing is mounted from the outer port into the respective receiving gap and has a first mating por