Tool-free flat-pack furniture

This invention

This invention is a modular furniture system that snaps together using injection-molded interlocking connectors — no tools, screws, or glue required. The components ship flat to save space. The connectors let the furniture be assembled, taken apart, and reassembled many times without wear or special parts. It belongs to the field of knock-down (ready-to-assemble) furniture and mechanical connector design, where easy shipping and tool-free assembly are the central goals.

Where it fits

Your idea sits squarely in Furniture & Cabinets (A47B) and Fasteners (F16B) — two areas that show up strongly in this result set, with 15 and 13 patents respectively. A47B runs roughly 114× the corpus average, so it's a tightly clustered, well-developed corner. That concentration is encouraging: tool-free, flat-pack furniture is a real, actively pursued direction. Filings appear steadily from 2001 through 2024, so interest has held continuous over two decades. Among the named groups here, VALINGE INNOVATION AB and SAC ACQUISTION LLC have been active nearby, working on mechanical locking and modular furniture coupling. The field also connects to Building Construction (E04B) and Electrical Connectors (H01R), which these results touch less centrally.

Closest related work

US-11771232-B2 — Modular furniture with tool free assembly (Noble House Home Furnishing LLC · 0 citations · 2-member family)

Filed in 2023, this recent patent describes furniture modules with integrated connectors that "register" with matching connectors on adjoining modules, so pieces fasten together without tools. It shows how Noble House approached the same core challenge you're tackling — integrated, fastener-free joining of furniture sections — and it's a useful, current example of how the tool-free concept is being expressed today. Noble House has 2 patents in this result set.

US-7213885-B2 — Modular furniture assembly (SAC Acquistion LLC · 80 citations · 43-member family)

This widely cited patent has an unusually large 43-member family. It covers a base and transverse member that detachably couple via a coupler, allowing many furniture types and sizes from a shared kit of parts. It shows how SAC Acquistion LLC approached versatile, manually-coupled modular furniture — a close cousin to your reconfigurable, reassemblable system.

US-8590976-B2 — Knock down furniture with locking joints (Clark Davis · 38 citations · 6-member family)

This one tackles fastener-free joints by bending or twisting panels as they insert into adjoining panels, putting the joint under stress to stiffen it, using tabs with offset or rotated slots. It's a great read for understanding how stiff, tool-free joints can be engineered purely from part geometry — closely related to your interlocking-connector approach.

US-7048346-B2 — Snap together modular storage (Cube Concepts LLC · 58 citations · 30-member family)

This patent describes snap-together panels with alignment guides that assemble in place and ship flat. It shows how Cube Concepts handled flat-pack shipping plus snap assembly with built-in alignment — directly relevant to your flat-pack and repeated-reassembly goals.

What you can do next

• Explore & build on it. Browse the related work above — new, differentiated ideas often come from combining or improving on existing approaches (a specific connector geometry, a particular injection-molded latch mechanism, a snap profile, or a reassembly-durability feature others haven't pinned down).
• If you'd like to protect it. Filing a provisional application (usually with a patent attorney) is a common first step. Most inventions can be protected in some form — what matters is how broad and defensible that protection is, which is where a patent attorney adds value (a very narrow claim may be granted but protect very little).
• If you'd like to make or sell it. The patents above point to who holds rights in this space; if your product would use a protected approach, licensing is a path worth exploring.