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Patent Information & Production OptionsHardness Adjustable Latex Foam Cushion with Layered Protection · Patent CN215077006U

Patent CN215077006U: 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 numberCN215077006U (application CN202121246326)
TypeChina utility model (实用新型) - protects product shape and structure
Original titleHardness Adjustable Latex Sponge Pad (一种硬度可调节型乳胶海绵垫)
Patent ownerDongguan Yaxin Polymer Materials Co., Ltd.
InventorsXu Ya
Filing date2021-06-04
Grant date2021-12-10
Status (China)Lapsed - terminated for non-payment of annual fees (recorded 2025-05-30)
Patent familyChinese filings only - no US, European, Japanese, PCT or other filings listed
Cited by0 later documents
SourceGoogle Patents (search for CN215077006U)

What the claims cover, in plain language

Claim 1 defines a latex foam-rubber cushion comprising a body (1) with sequential inner layers: sweat-absorbing (2), waterproof (3), flame-retardant (4), fire-proof (5), insect-repelling (6), and base (7). A keel (8) supports a mechanism of first/second pressing sheets/blocks (9-12) connected by springs (16). A movable groove (13) houses a support block (14) driven by a connecting rod (15), internal thread sleeve (17), external thread rod (18), worm (19), and adjusting knob (20). Rotating the knob moves the block to alter the compression resistance of the pressing blocks, thus adjusting hardness.

Claim 2 specifies that connecting seats (21) and a rotating shaft (22) facilitate the movement of the pressing blocks. Claim 3 states there are four springs (16) arranged in a rectangular position. Claim 4 details that the flame-retardant layer (4) is filled with flame-retardant fabrics. Claim 5 notes that mosquito repellent incense grass bags are fixed inside the insect-repelling layer (6).

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 has lapsed, so it no longer restricts anyone in China either. It has no US or other foreign counterpart.

Two points to settle early:

  • Other patents may exist. Adjustable furniture mechanisms and specialized foam composites are active fields in the US. A freedom-to-operate (FTO) review is recommended to check for existing US patents covering similar worm-gear adjustments in cushions or specific layered material constructions.
  • Material Compliance. The claims specify functional layers like flame retardants and insect repellents. These materials must be sourced carefully to meet US regulatory standards for flammability and chemical safety.

Customization and manufacturing

What can be customized

AreaOptions
Pad DimensionsLength, width, and total thickness based on application.
Layer MaterialsType of latex, fabric blends for waterproofing, specific flame-retardant agents.
Mechanism RatioThread pitch and lever arm length to fine-tune the effort needed to turn the knob.
Knob DesignMaterial (plastic/metal), grip texture, and locking feature.
Repellent AgentsChoice of natural vs. synthetic insect-repelling materials within the allowed layer.

Things to plan for (US market)

  • CPSC 16 CFR 1633 / 1632 - Flammability standards for upholstered furniture. The flame-retardant and fire-proof layers must pass these tests.
  • EPA Registration - If the insect-repelling layer contains pesticides (e.g., treated fabrics or chemicals), EPA registration requirements apply. Natural alternatives like cedar or specific herbs may bypass some restrictions but still need labeling compliance.
  • Proposition 65 (California) - Warning labels may be required if certain flame retardants or latex additives are present above safe harbor levels.
  • ASTM D6866 - For verifying bio-based content if marketing the latex component as eco-friendly.

How a project runs

  1. Inquiry - Define target dimensions, desired firmness range, and specific layer requirements.
  2. Design - CAD modeling of the keel and gear mechanism; selection of compliant materials for layers.
  3. Prototype - 3D print mechanism parts; assemble sample pads with test materials.
  4. Pilot Run - Small batch production; conduct flammability and durability testing.
  5. Production - Injection molding for plastic parts; cutting and laminating of foam/fabric layers; assembly.

Quantities & timeline

Tooling for the injection-molded mechanism parts (knobs, gears, blocks) takes 4-6 weeks. Laminated layer production depends on material sourcing lead times. Testing for flammability and chemical compliance can take 2-4 weeks. Send us your dimensions, target firmness range, material preferences, quantity and target price and we will reply with options.

Patent drawings

Hardness Adjustable Latex Foam Cushion with Layered Protection - Patent Fig. 1
Fig. 1 - Schematic diagram of the overall structure.
Hardness Adjustable Latex Foam Cushion with Layered Protection - Patent Fig. 2
Fig. 2 - Enlarged view of the connection area.
Hardness Adjustable Latex Foam Cushion with Layered Protection - Patent Fig. 3
Fig. 3 - Schematic diagram of the adjustment mechanism.
Hardness Adjustable Latex Foam Cushion with Layered Protection - Patent Fig. 4
Fig. 4 - Structural view of the pressing block assembly.
Hardness Adjustable Latex Foam Cushion with Layered Protection - Patent Fig. 5
Fig. 5 - View of the support block and groove.
Hardness Adjustable Latex Foam Cushion with Layered Protection - Patent Fig. 6
Fig. 6 - Side view of the keel and layers.
Hardness Adjustable Latex Foam Cushion with Layered Protection - Patent Fig. 7
Fig. 7 - Exploded view of the mechanism components.

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 CN215077006U, assigned to Dongguan Yaxin Polymer Materials 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.