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Patent CN206383856U

Updated October 25, 2026

Infant Car Seat with a Load-Bearing Base That Wraps the Carrier

Parents carry an infant car seat by its handle from car to house, to the stroller, to the doctor's office - and a crash-ready carrier is heavy. In most systems the carrier shell does all the protecting, and the base only clips it to the car. This design moves part of that job into the base. The base has its own backrest that sits right behind the carrier's backrest, and side rails hinged at the front of the base that swing up and lie against the outside of the carrier's side panels. In a frontal or side impact, the carrier presses into the base's backrest and rails, so the patent describes being able to make the carrier lighter. To lift the carrier out, a button on the base backrest unlocks the rails, which fold forward out of the way.

  • China utility model - in force in China until Dec 2026 at most
  • No filings outside China
  • Infant car seats & travel systems
  • Molded plastic shells, steel lock parts, EPS foam
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Infant Car Seat with a Load-Bearing Base That Wraps the Carrier - patent drawing

🛡️

Base takes the load

The base's backrest and side rails back up the carrier in frontal and side impacts.

🪶

Lighter carrier

With the base sharing the protection, the patent aims for a carrier that is easier to carry.

🚪

Swing-open side rails

Side rails hinged at the front of the base fold forward to let the carrier in or out.

🔒

Pin lock and release button

A sliding lock pin holds the carrier; a button on the base backrest unlocks the rails.

🔥 Popularity – views

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  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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The problem

An infant car seat is two parts: a base that stays installed in the car and a carrier (basket) that clicks onto it and is carried by a handle. According to the patent, to protect the baby in a frontal or side collision, carriers are usually made thick and strong, which makes them heavy to carry once they are taken out of the car.

The solution

The patent lets the base share the crash loads:

  1. The carrier (1) has a first base (11) for the baby to sit on, a first backrest (12), side panels (13) and a handle (14).
  2. The base assembly (2) has a second base (21) that supports the carrier from below, a second backrest (22) that stands right behind the carrier’s backrest, and a guardrail assembly (23).
  3. The guardrail has side rails (231) on the left and right, hinged at the front of the base, joined at the top by a cross rail (232).
  4. With the carrier in place, the side rails lie against the outside of the carrier’s side panels. In a frontal impact, the carrier’s backrest presses on the base backrest; in a side impact, the side panels press on the side rails - according to the patent, so the carrier itself can be lighter.
  5. To fit or remove the carrier, the rails swing forward away from the backrest. A fixing mechanism keeps them closed, and an unlock button (4) sliding on the base backrest releases them.
  6. A lock pin (3), sliding side to side in the base, enters a groove under the carrier and holds it in place.
Infant Car Seat with a Load-Bearing Base That Wraps the Carrier - Patent drawing - carrier in the base
Patent figure 1 - the carrier (1) seated in the base, with the side rails (231) and cross rail (232) closed around it.

Who it is for

  • Juvenile products brands developing an infant car seat or travel system and looking for a lighter-carrier selling point.
  • Stroller brands adding a matching infant seat and base to complete a travel system.
  • Car seat engineering teams exploring base-integrated side impact protection.
  • Retailers with private-label baby lines that want a differentiated infant seat platform, developed with a certified partner.

How it works

The main parts

Infant Car Seat with a Load-Bearing Base That Wraps the Carrier - Patent drawing - base with rails open
Patent figure 5 - the base assembly (2) with its side rails swung forward to the open position.
No.PartWhat it does
1CarrierSeat shell with first base (11), backrest (12), side panels (13), handle (14).
2Base assemblyStays in the car; supports and backs up the carrier.
21Second baseSupports the carrier from below.
22Second backrestSits behind the carrier’s backrest.
231Side railsHinged at the front; lie against the carrier’s sides.
232Cross railJoins the side rails at the top.
3Lock pinSlides into a groove under the carrier.
4Unlock buttonReleases the closed rails.

Using it

  1. Open the rails - press the unlock button on the base backrest and swing the side rails forward.
  2. Set the carrier on the base; the lock pin engages its groove.
  3. Close the rails - swing them back until they lie against the carrier’s side panels and latch.
  4. To take the baby out in the carrier, press the button, swing the rails open, release the lock pin and lift the carrier by its handle.
Infant Car Seat with a Load-Bearing Base That Wraps the Carrier - Patent drawing - carrier being fitted
Patent figure 2 - fitting or removing the carrier with the rails open.

Applications

Infant travel systems

Brands pairing an infant seat with a stroller can promote a carrier that is lighter to move from car to stroller.

Parents in city apartments

Carrying a sleeping baby up stairs or across a parking lot is easier with a lighter carrier.

Two-car families

A second base in another car gets the same side-rail protection without buying a second carrier.

Grandparents and caregivers

Older caregivers lifting the carrier often benefit most from reduced weight.

Where it is less suitable

  • Carrier used without its base - the design shares protection with the base, so baseless (belt-only) installation needs its own engineering and testing.
  • Convertible and all-in-one seats - this is an infant-carrier concept, not a seat that stays in the car through the toddler years.
  • Projects without crash-test capacity - any car seat must be engineered and dynamically tested by a qualified team before sale.

Frequently asked questions

What do the side rails on the base do?

They swing up and lie against the outside of the carrier’s side panels. In a side impact the carrier presses on the rails, and in a frontal impact its backrest presses on the base backrest, so the base shares the load.

Is the carrier really lighter?

That is the aim the patent states: because the base backs up the carrier, the carrier needs less strength of its own. The actual weight saving is set in design and proven by crash testing.

How do I take the carrier out?

Press the unlock button on the base backrest, swing the side rails forward, release the lock pin and lift the carrier by its handle.

Can the carrier be installed without the base?

The patent covers the carrier on its base. A baseless, belt-only installation is possible in principle but must be engineered and tested separately, because the rails would not be there.

Can it be part of a travel system?

Yes. The carrier can be fitted with adapters for a matching stroller, which is where a lighter carrier matters most.

Who does the crash testing?

Testing is done at an accredited lab against FMVSS 213. We work with your engineering team or a certified partner; we do not sell uncertified seats.

Can this design be made and sold in the US?

The patent was filed only in China, so it does not restrict the design in the US. It is in force in China until December 2026 at most, and making or selling it there needs the owner’s permission. Infant car seat bases may be covered by other US patents - see Patent & Production - so we recommend a freedom-to-operate check before volume production.

Are you affiliated with the patent owner?

No. IP2M is an independent design and manufacturing service working from the public patent document.

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Helpful details to include:

  • Your company and channel (juvenile brand, stroller brand, retailer private label)
  • Weight and height range for the carrier
  • Installation (LATCH, belt path, load leg) and travel-system needs
  • Certification plan and engineering partner
  • Estimated quantity and target price
  • Timeline - when you would like samples and the first shipment

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Patent CN206383856U: bibliographic data, legal status, family, a plain-language reading of the claims, plus customization, US compliance points and how a manufacturing project runs.

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This page is based on the public patent document CN206383856U, assigned to Goodbaby Child Products 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.