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Patent Information & Production OptionsStretchable Folding Lamp Box with Hinged Side Wings · Patent CN116453429B

Patent CN116453429B: 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 numberCN116453429B (application CN202310389072)
TypeChina invention patent - protects product structure and method
Original titleStretchable folding lamp box (一种可拉伸折叠灯箱)
Patent ownerSuzhou Fengfan Logo Co ltd
InventorsDai Kangli
Filing date2023-04-12
Grant date2024-01-12
Status (China)In force - valid until at most 2043-04-12, 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 CN116453429B)

What the claims cover, in plain language

Claim 1 defines a stretchable folding lamp box comprising an aluminum alloy frame (1) with left (2) and right folding frames (4). Key features include:

  • Hinge Splicing Member: A hinge rod (6) connects the side frames to the main frame, allowing rotational movement.
  • Sliding Lock Mechanism: Inside the main frame, sliding grooves (12) house sliding blocks (14) pushed by springs (13). The hinge rod drives the block, which extends a mounting shaft through sliding through-holes (9) to lock the position.
  • Alignment System: Support plates B (19) on the main frame feature main (21) and auxiliary positioning pipes (20). These mate with corresponding connecting pipes (10, 11) on the side frames’ support plates A (16) to ensure rigidity.
  • Cooling and Lighting: Exhaust fans (8) are embedded in the main frame, drawing air through exhaust through-holes (5) in the side frames. LED lamp areas (15) are installed symmetrically in all three sections.
  • Display Surface: A spray painting curtain (3) is held by curtain positioning members at the top of the inner walls.

Claim 2 specifies the curtain locating component, detailing the mounting plate (24) and its interaction with the frame structures to hold the graphic material taut.

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 mechanical configuration in China requires the owner’s permission. However, since there are no US patents in this family, the design itself is not protected in the United States.

Two points to settle early:

  • Other patents may exist. Modular light boxes and folding signage mechanisms are a competitive field. Large manufacturers (e.g., Octanorm, PortaGroup) hold numerous US patents on joint mechanisms, tool-free assembly, and thermal management. A freedom-to-operate (FTO) review is essential to ensure your specific hinge and locking implementation does not infringe on existing US utility patents.
  • Component Sourcing. The use of custom extruded aluminum profiles with integrated channels for the sliding grooves and positioning pipes requires precise die-casting or extrusion dies. Standard off-the-shelf aluminum channels will not achieve the described locking tolerance.

Customization and manufacturing

What can be customized

AreaOptions
Width ExpansionRatio of side wing length to main frame; total extended width.
Material FinishAnodized aluminum colors (black, silver, white) or powder coating.
Lighting SourceLED strip density, color temperature (3000K-6500K), or edge-lit vs. back-lit.
Graphic MaterialTension fabric, PVC banner, or acrylic diffuser compatible with the curtain holders.
Power SupplyInternal battery pack for cordless use or standard AC adapter routing.
Fan ControlThermostat-controlled fans vs. always-on operation.

Things to plan for (US market)

  • UL 48 / UL 1598: Electrical safety standards for luminaires. The integrated fans and LED drivers must be certified for fire and shock protection.
  • FCC Part 15: If the unit includes wireless controls (Bluetooth/Wi-Fi for dimming), it requires FCC certification. Passive electronic components generally do not.
  • California Prop 65: Aluminum alloys and certain plastics used in the hinges or curtains may contain chemicals requiring warning labels.
  • ADA Compliance: Ensure the operational force required to pull the side frames open complies with accessibility standards for public installations.

How a project runs

  1. Inquiry - Define target dimensions, weight limits, and aesthetic requirements.
  2. Design - CAD modeling of the extrusion profiles, hinge geometry, and electrical layout.
  3. Prototype - CNC machining of initial aluminum parts and 3D printing of plastic connectors for fit testing.
  4. Pilot Run - Small batch production to test the locking mechanism durability and thermal performance.
  5. Production - Tooling for aluminum extrusion dies, injection molding for plastic sliders, and final assembly.

Quantities & timeline

The complex internal channels of the aluminum frame require custom extrusion dies, which have a lead time of 4-6 weeks. Plastic components like the sliding blocks and pipe connectors need steel molds. Thermal testing and UL certification add 8-12 weeks. Send us your desired dimensions, quantity, and target launch date and we will reply with options.

Patent drawings

Stretchable Folding Lamp Box with Hinged Side Wings - Patent Fig. 1
Fig. 1 - Perspective view of the extended lamp box.
Stretchable Folding Lamp Box with Hinged Side Wings - Patent Fig. 2
Fig. 2 - Structural diagram of the hinge and sliding mechanism.
Stretchable Folding Lamp Box with Hinged Side Wings - Patent Fig. 3
Fig. 3 - Cross-section of the main frame showing fan placement.
Stretchable Folding Lamp Box with Hinged Side Wings - Patent Fig. 4
Fig. 4 - Detail of the support plate alignment pipes.
Stretchable Folding Lamp Box with Hinged Side Wings - Patent Fig. 5
Fig. 5 - Exploded view of the sliding block and spring assembly.
Stretchable Folding Lamp Box with Hinged Side Wings - Patent Fig. 6
Fig. 6 - Diagram of the LED lighting distribution.
Stretchable Folding Lamp Box with Hinged Side Wings - Patent Fig. 7
Fig. 7 - Close-up of the curtain positioning member.
Stretchable Folding Lamp Box with Hinged Side Wings - Patent Fig. 8
Fig. 8 - Ventilation flow path through the exhaust holes.
Stretchable Folding Lamp Box with Hinged Side Wings - Patent Fig. 9
Fig. 9 - Alternative embodiment of the hinge connection.
Stretchable Folding Lamp Box with Hinged Side Wings - Patent Fig. 10
Fig. 10 - Top-down view of the assembled frame structure.

Drawings reproduced from the public patent document for reference.

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  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 CN116453429B, assigned to Suzhou Fengfan Logo 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.