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Patent Information & Production OptionsFoldable Car Seat Table with Adjustable Rotating Mechanism · Patent CN116160935B

Patent CN116160935B: bibliographic data, legal status, family, a plain-language reading of the claims, plus customization, US compliance points and how a manufacturing project runs.

At a glance

Patent numberCN116160935B (application CN202310053640)
TypeChina invention patent (发明专利) - protects product shape, structure, and method
Original titleA foldable car seat table (一种可收折式汽车座椅桌板)
Patent ownerGuangxi Shuangying Group Co ltd
InventorsChen Xiaobing, Feng Qingyuan
Filing date2023-02-03
Grant date2025-01-03
Status (China)In force - valid until at most 2043-02-03 (if annual fees are paid)
Patent familyChinese filings only - no US, European, Japanese, PCT or other filings listed
Cited by0 later documents
SourceGoogle Patents (search for CN116160935B)

What the claims cover, in plain language

Claim 1 - a foldable automobile seat table with a table assembly connected to a seat armrest by an adjustable rotating mechanism. The mechanism includes a rotating shaft, a first rotating plate with an arc-shaped hole, and a second rotating plate with a linear hole. A movable pin assembly passes through both holes. When the table rotates counterclockwise from a horizontal storage state to a first limit position, the pin moves along the holes, causing the table to extend such that its right end passes the vertical center line of the seat (H-point). The claim specifies rotation intervals: the second plate rotates 180-360 degrees horizontally, and the first plate rotates 212.1-8.5 degrees. The pin assembly includes a column body with three limiting caps, a plastic part, and a bushing.

Claim 2 - details the dimensions of the limiting caps on the pin assembly relative to the widths of the linear and arc-shaped holes to ensure proper retention.

Claim 3 - introduces an elastic limiting pin on the armrest with a spherical contact. This pin provides friction/resistance to prevent unwanted horizontal rotation of the table assembly but allows it to be adjusted when force is applied.

This is a simplified reading for orientation only. The legal scope is defined by the exact claim wording in the official Chinese document.

What this means for US production

This patent was filed only in China and is currently in force. Making or selling this specific mechanism in China requires the owner’s permission. However, since there are no US patents in this family, the design itself is not restricted by this patent in the United States.

Two points to settle early:

  • Other patents may exist. Automotive interior accessories are a crowded field. Major suppliers like Lear, Faurecia, and Johnson Controls hold extensive IP portfolios. You must conduct a freedom-to-operate (FTO) review to ensure your version of the rotating mechanism does not infringe on existing US utility patents regarding similar linkage geometries or locking methods.
  • Safety Standards. Unlike consumer furniture, automotive components face strict crash safety and material flammability regulations. The structural integrity of the plastic bushings and metal plates must withstand vibration and impact forces specified by vehicle OEMs.

Customization and manufacturing

What can be customized

AreaOptions
MaterialAluminum alloy or steel for plates; ABS/PC for bushings and pin housing.
Surface FinishPowder coating, anodizing, or injection molding textures to match interior trim.
Rotation RangeAdjust hole lengths (arc and linear) to change the extension distance and final angle.
Locking ForceTune the spring stiffness in the elastic limiting pin for lighter or heavier resistance.
Table SizeScale the flat plate and folding sub-plate dimensions while maintaining the mechanism ratio.

Things to plan for (US market)

  • FMVSS 302 - Flammability of interior materials; critical for any component in the passenger compartment.
  • SAE J2877 - Guidelines for durability and performance of interior accessories.
  • Crash Safety - Components must meet OEM-specific impact tests (e.g., head injury criteria if near the window pillar).
  • RoHS/REACH - Compliance with chemical restrictions for plastics and coatings exported to global markets.

How a project runs

  1. Inquiry - Define load requirements, target vehicle platform, and aesthetic finish.
  2. Design - CAD modeling of the linkages, FEA analysis of stress points in the rotating plates.
  3. Prototype - CNC machining of plates, 3D printing of housings for fitment testing.
  4. Pilot run - Durability testing (cycle life), vibration testing, and temperature cycling.
  5. Production - Stamping/machining plates, injection molding plastic parts, automated assembly of pin assemblies.

Quantities & timeline

The precision of the arc and linear holes is critical for smooth operation, requiring high-tolerance stamping dies or CNC machining. Plastic bushings need dedicated injection molds. Certification tests for flammability and durability take several weeks. Send us your target vehicle application, load capacity, finish preference, quantity and timeline and we will reply with options.

Patent drawings

Foldable Car Seat Table with Adjustable Rotating Mechanism - Patent Fig. 1
Fig. 1 - Folded storage state of the table assembly.
Foldable Car Seat Table with Adjustable Rotating Mechanism - Patent Fig. 2
Fig. 2 - Armrest lowered, ready for deployment.
Foldable Car Seat Table with Adjustable Rotating Mechanism - Patent Fig. 3
Fig. 3 - Table assembly rotated to extended position.
Foldable Car Seat Table with Adjustable Rotating Mechanism - Patent Fig. 4
Fig. 4 - Alternative view of the extended configuration.
Foldable Car Seat Table with Adjustable Rotating Mechanism - Patent Fig. 5
Fig. 5 - Side view of the rotating mechanism components.
Foldable Car Seat Table with Adjustable Rotating Mechanism - Patent Fig. 6
Fig. 6 - Exploded view of the movable pin assembly and plates.
Foldable Car Seat Table with Adjustable Rotating Mechanism - Patent Fig. 7
Fig. 7 - Cross-section showing pin alignment in initial state.
Foldable Car Seat Table with Adjustable Rotating Mechanism - Patent Fig. 8
Fig. 8 - Cross-section showing pin alignment during rotation.
Foldable Car Seat Table with Adjustable Rotating Mechanism - Patent Fig. 9
Fig. 9 - Detailed geometry of the arc and linear holes.
Foldable Car Seat Table with Adjustable Rotating Mechanism - Patent Fig. 10
Fig. 10 - Elastic limiting pin structure and interaction.
Foldable Car Seat Table with Adjustable Rotating Mechanism - Patent Fig. 11
Fig. 11 - Overview of the complete seat assembly integration.

Drawings reproduced from the public patent document for reference.

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This page is based on the public patent document CN116160935B, assigned to Guangxi Shuangying Group Co ltd. IP2M is an independent manufacturing service and is not affiliated with, endorsed by or licensed by the patent owner. Images marked as concept renderings are illustrations, not photos of an existing product. Patent status information is provided for reference only and is not legal advice; confirm freedom to operate for your market before production. Full disclaimer.