Patent CN112137264B

Updated November 4, 2026

Mobile Suitcase with Foldable Child Seat and Safety Guards

Traveling with a toddler often means holding them or pushing a stroller alongside your luggage. This patent describes a suitcase that doubles as a ride-on seat. A soft cushion unfolds from the top of the box, surrounded by safety bars that lock into place. The side guards hinge out from the pull rod, and a spring-loaded backrest slides up from behind. When you are done, the seat rotates down, the guards fold inward, and the whole assembly tucks away, leaving a standard-looking suitcase. It solves the problem of needing two hands-free options for both gear and child.

  • China invention patent - in force
  • No filings outside China
  • Luggage & Travel Gear
  • Soft seat, metal guides, plastic guards, spring mechanisms
Mobile Suitcase with Foldable Child Seat and Safety Guards - product render

🧳

Dual-purpose design

Functions as standard luggage and transforms into a secure seat for a child.

🛡️

Multi-point safety

Front mesh belt, hinged side rods, and a rear backrest prevent falls.

🔄

Compact storage

Seat rotates down and guards fold into the handle structure to save space.

⚙️

Mechanical deployment

Uses guide rails, springs, and rack-and-pinion style locking for stability.

🔥 Popularity – views

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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The problem

Parents traveling with young children face a logistical challenge: they must manage heavy luggage and keep the child safe and contained. Traditional solutions involve either carrying the child (which is exhausting) or bringing a separate stroller (which adds bulk and requires another hand). Standard suitcases do not offer any seating capability, and if a child sits on a closed suitcase, there is no back support, no foot restraint, and a high risk of falling off during movement. There is a need for a piece of luggage that integrates a stable, guarded seating position for a child without significantly increasing the footprint or complexity of the bag when not in use.

The solution

The patent describes a mobile suitcase equipped with a deployable seat cushion assembly and a side protection system.

  1. Base Unit: A standard suitcase body (1) with four universal wheels (2) and a telescopic pull rod (3).
  2. Seat Assembly: Mounted on the top of the body are two fixed shafts (41). Grooved guide rails (42) slide along these shafts. A soft seat cushion (45) connects between the rails. A front protective frame (43) with a mesh belt (44) attaches to the front of the rails.
  3. Side Guards: Attached to the upper part of the telescopic pull rod is a mounting rod (51). Multiple protective rods (52) hinge onto this rod. They connect via linkage rods (53, 54) and lock into grooved limit rods (55) attached to the front frame.
  4. Backrest: Guide rods (61) slide through the mounting rod, supporting a back board (62) held by tension springs (63).
  5. Deployment: To use, the side guards swing out horizontally. The pull rod extends, lowering the guard assembly into position. The seat rails rotate 180 degrees to face upward and slide backward to extend the seating area. The backrest slides up.
  6. Storage: The seat rotates downward to lie flat against the suitcase lid. The side guards fold inward toward the pull rod. The entire assembly collapses into a low-profile stack on top of the bag.
Mobile Suitcase with Foldable Child Seat and Safety Guards - Patent drawing - suitcase overview
Fig. 1 - The suitcase with the seat and guards in the deployed state.

Who it is for

  • Family Travel Brands: Companies looking to differentiate their product line with integrated child-carrying features.
  • Airport Retailers: High-traffic locations where parents might impulse-buy a solution for navigating terminals with toddlers.
  • Hotel Concierge Services: Upscale hotels offering loaner equipment for families, where space-saving luggage is valuable.
  • Amazon FBA Sellers: Niche sellers targeting “travel hacks” and family vacation gear who need a unique selling proposition.

How it works

The main parts

No.PartWhat it does
1Box BodyMain luggage shell with wheels.
2Universal WheelsAllow omnidirectional movement.
3Telescopic Pull RodHandle for pulling; also anchors side guards.
4Seat Cushion AssemblyProvides the sitting surface.
41Fixed ShaftsPivot points for the seat rails.
42Grooved Guide RailsSlide and rotate to deploy/withdraw the seat.
43Front Protective FrameHolds the mesh belt; anchors side guard limits.
44Protective Mesh BeltPrevents the child from sliding forward.
45Soft Seat CushionComfortable seating surface.
5Side Protection AssemblyPrevents lateral falls.
51Mounting RodConnects guards to the pull rod.
52Protective RodsSwing out to form side barriers.
55Grooved Limit RodsLock the side guards in the open position.
6Backrest AssemblySupports the child’s back.
62Back BoardRigid panel for back support.
63Tension SpringsAssist in raising and holding the backrest.
7Folding/Unfolding AssemblyRack and gear mechanism to lock/unlock the seat depth.
Mobile Suitcase with Foldable Child Seat and Safety Guards - Patent drawing - seat mechanism
Fig. 2 - Detail of the seat cushion assembly and guide rails.

Operating Steps

  1. Extend the Pull Rod: Raise the telescopic handle (3) fully.
  2. Deploy Side Guards: Rotate the protective rods (52) outward until they click into the grooved limit rods (55).
  3. Rotate Seat: Turn the grooved guide rails (42) 180 degrees around the fixed shafts (41) so the cushion faces up.
  4. Slide Seat Back: Pull the guide rails backward to create space for the child’s legs and body.
  5. Raise Backrest: Lift the back board (62) using the tension springs (63) to lock it in place.
  6. Place Child: Sit the child on the cushion (45), legs straddling the front mesh belt (44).
  7. Fold Away: Reverse the steps—rotate seat down, fold guards in, collapse pull rod.
Mobile Suitcase with Foldable Child Seat and Safety Guards - Patent drawing - folding action
Fig. 3 - Illustration of the folding and unfolding motion of the seat.

Applications

Airport Terminal Navigation

Parents can sit their child on the moving luggage while walking through long concourses. The guards prevent the child from slipping off during turns or sudden stops, freeing the parent’s hands for passports and phones.

Hotel Lobby Waiting

While checking in or waiting for a room, the child can remain seated securely on the luggage rather than wandering near reception desks or climbing on furniture. The compact folded state allows easy storage at the bell desk.

Theme Park Queues

For families standing in lines for rides, the child can rest on the luggage seat. The backrest provides comfort during waits, and the wheels allow quick movement if the line shifts, reducing fatigue for the parent.

Public Transport Commutes

On buses or trains, the luggage acts as a dedicated seat for the child, preventing them from taking up adult seats or standing unsafely. The mesh belt keeps them contained even if the vehicle moves abruptly.

Where it is less suitable

  • Heavy Cargo Trips: The structural integrity of the top deck is optimized for a child’s weight (approx. 15-40 lbs); placing heavy boxes on the seat may damage the mechanism.
  • Rough Terrain: Universal wheels and a rigid seat connection are best for smooth airport floors; cobblestones or gravel may cause excessive vibration or instability.
  • Older Children: Designed for toddlers; older kids may exceed the height limits of the guards or the weight capacity of the hinges.

Frequently asked questions

Is this suitcase safe for my child?

The design includes a front mesh belt to prevent forward sliding, side rods that lock into place to stop lateral falls, and a backrest for rear support. The patent emphasizes these multi-point protections. However, always supervise your child while they are seated on the luggage.

How much weight can the seat hold?

The patent does not specify a maximum weight rating. In typical designs of this nature, the limit is determined by the strength of the hinges, the pull-rod connection, and the wheel axles. We recommend confirming load capacities during the prototyping phase based on ASTM standards for similar products.

Does it take up extra space when folded?

No. The seat cushion rotates downward to lie flat against the suitcase lid, and the side guards fold inward toward the telescopic handle. The backrest retracts. This allows the suitcase to maintain a relatively standard profile for storage in overhead bins or trunks.

Can I use the suitcase normally without deploying the seat?

Yes. You can leave the seat and guards folded down and use the suitcase as a regular rolling bag. The mechanism does not interfere with closing the main zippered compartments.

What materials are used for the seat?

The patent describes a “soft seat cushion” and a “protective mesh belt.” Specific materials are not detailed in the text, but production would typically use durable, cleanable fabrics like Oxford nylon or PU leather, padded with EVA foam for comfort.

Why is there a rack and gear in the mechanism?

Claim 4 mentions a folding and unfolding assembly with a rack, gear, and spring. This is likely used to lock the seat in the extended position securely, preventing it from sliding back unintentionally while a child is sitting.

Can this design be made and sold in the US?

The patent CN112137264B is registered only in China and is currently in force there. Since there are no corresponding US patents in this family, this specific patent does not block US sales. However, other unrelated US patents may cover similar concepts, so a freedom-to-operate search is advised.

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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This page is based on the public patent document CN112137264B, assigned to Xiamen Huisen Luggage Industry 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.