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Patent Information & Production OptionsAutomobile Luggage Rack with Automatic Alignment and Quick-Release Clamping · Patent CN118405064B

Patent CN118405064B: 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 numberCN118405064B (application CN202410881364)
TypeChina invention patent - protects product structure and method
Original titleAutomobile luggage frame convenient to disassemble and assemble (一种便捷拆装的汽车行李架)
Patent ownerChangzhou Yuhang Automotive Trim Co
InventorsGuo Fengli
Filing date2024-07-03
Grant date2024-10-29
Status (China)In force - valid until at most 2044-07-03, subject to payment of annual fees
Patent familyChinese filings only - no US, European, Japanese, PCT or other filings listed
Cited by0 later documents
SourceGoogle Patents (search for CN118405064B)

What the claims cover, in plain language

Claim 1 defines a roof rack comprising two longitudinal beams and two crossbeams. The crossbeams are installed on the longitudinal beams. A reinforcing plate connects the crossbeams. Key structural elements include cassettes (clamp seats) sliding in slots at the ends of the crossbeams. These cassettes have clamping grooves matching the longitudinal beam shape. Inside each cassette, a linkage mechanism is triggered by the insertion of the longitudinal beam. This mechanism includes a power storage disc (spring-loaded), rotating rods, and gears that drive screw rods. The screw rods move clamp blocks to grip the beam. A locking mechanism on the reinforcing plate coordinates the movement of the four clamp seats, pushing them in opposite directions to center the assembly.

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 would require the owner’s permission. However, since there are no US patents in this family, the technology itself is not protected by a US patent right.

Two points to settle early:

  • Other patents may exist. The automotive accessory market is dense with intellectual property. Major players like Thule, Yakima, and Rhino-Rack hold numerous patents on roof rack mounting systems, including various quick-release and clamping mechanisms. A freedom-to-operate (FTO) review is essential to ensure your specific implementation does not infringe on existing US patents in the field of roof rack attachment devices.
  • Material Durability. The linkage mechanism relies on moving parts (gears, springs, screws) exposed to weather. Material selection for these components must account for UV resistance, corrosion protection, and temperature fluctuations typical in outdoor automotive use.

Customization and manufacturing

What can be customized

AreaOptions
Beam DimensionsWidth and height of longitudinal/cross beams to match specific vehicle models.
Load CapacityAdjust steel thickness and material grade (aluminum vs. steel) for different weight ratings.
FinishPowder coating colors, anodized aluminum finishes, or protective rubber seals.
Locking TypeIntegration of padlock holes or keyed locks for theft prevention.
CompatibilityAdapters for different roof rail profiles (flush, raised, or bare roof).

Things to plan for (US market)

  • SAE J1200 / FMVSS: While there is no single federal regulation specifically for aftermarket roof racks, they must not obstruct visibility or violate general safety standards. Ensure sharp edges are covered.
  • Corrosion Resistance: ASTM B117 salt spray testing is commonly requested by buyers to verify finish durability against road salts and moisture.
  • Weight Rating Documentation: Provide clear static and dynamic load limits based on engineering calculations or third-party testing (e.g., SAE J1200 equivalent tests).

How a project runs

  1. Inquiry - Define target vehicle compatibility, load requirements, and aesthetic preferences.
  2. Design - Finalize the linkage geometry, select materials for the spring and gear components, and design mold cavities.
  3. Prototype - Create functional prototypes to test the auto-centering force and locking reliability under vibration.
  4. Pilot Run - Small batch production for quality control checks on assembly tolerances and finish consistency.
  5. Production - Full-scale manufacturing, including injection molding for plastic parts, extrusion for beams, and assembly lines.

Quantities & timeline

The complex linkage mechanism requires precision molds for the gear assemblies and spring housings. Metal beams may require CNC machining or extrusion dies depending on volume. Certification testing for load capacity and environmental resistance should be scheduled early. Send us your target vehicle models, load specifications, desired finish, estimated quantity and we will reply with options.

Patent drawings

Automobile Luggage Rack with Automatic Alignment and Quick-Release Clamping - Patent Fig. 1
Fig. 1 - Overall structure of the automobile luggage rack.
Automobile Luggage Rack with Automatic Alignment and Quick-Release Clamping - Patent Fig. 2
Fig. 2 - Exploded view of the clamping and linkage components.
Automobile Luggage Rack with Automatic Alignment and Quick-Release Clamping - Patent Fig. 3
Fig. 3 - Detailed view of the linkage mechanism and power storage disc.
Automobile Luggage Rack with Automatic Alignment and Quick-Release Clamping - Patent Fig. 4
Fig. 4 - Cross-section of the cassette and clamping groove interaction.
Automobile Luggage Rack with Automatic Alignment and Quick-Release Clamping - Patent Fig. 5
Fig. 5 - Diagram of the gear and rack transmission system.
Automobile Luggage Rack with Automatic Alignment and Quick-Release Clamping - Patent Fig. 6
Fig. 6 - Position of the clamp block relative to the longitudinal beam.
Automobile Luggage Rack with Automatic Alignment and Quick-Release Clamping - Patent Fig. 7
Fig. 7 - Alternative view of the locking mechanism arrangement.
Automobile Luggage Rack with Automatic Alignment and Quick-Release Clamping - Patent Fig. 8
Fig. 8 - Schematic of the automatic centering force direction.

Drawings reproduced from the public patent document for reference.

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Bring this product to market

  1. ✓ Patent vetted China-only family and legal status checked
  2. 2 Product brief · now How it works, uses and options written up
  3. 3 Prototype First samples for buyers to review
  4. 4 Pilot run Small first batch for launch customers
  5. 5 Volume production Repeat orders at scale

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This page is based on the public patent document CN118405064B, assigned to Changzhou Yuhang Automotive Trim Co. 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.