Integrated Multi-Functional Automotive Paint Repair Tool Cart

The problem

In automotive body shops, technicians often struggle with disorganized workspaces during paint repairs. Standard tool carts are not designed for the specific needs of refinishing: paint cans roll around, solvent spills create hazards, and masking paper and tape require separate holders that get tangled or misplaced. Additionally, connecting multiple air hoses for painting can be cumbersome when done manually near the vehicle. There is a need for a mobile unit that consolidates these functions—storage, waste management, masking preparation, and air supply—into a single, stable platform that moves easily but stays put during use.

The solution

The patent describes an integrated multi-functional tool cart built around a rectangular body.

1. Mobility: The bottom front has locking universal caster wheels, while the rear has one-way round wheels. This combination allows the cart to be pushed into position and then locked securely in place.
2. Storage: An open-type equipment drawer holds tools. On the sides, there are detachable containing boxes (Box A and Box B). Box B contains a solvent slop collecting vessel for waste disposal.
3. Paint Handling: Above the drawers sits a paint storage box with rotary flip closing lids. A work top extends from the side, adjacent to the paint box’s open top.
4. Masking Station: At the front, protrusion baffle plates form a frame. Between them, a handrail and a rotary axle hold masking paper rolls. Below, a fixing axle holds paper self-adhesive tape. Cutting blades are positioned at the anterior end of the baffles for trimming.
5. Air Supply: A gas source three-way interface is mounted on the lateral wall of the baffle plate, providing one inlet and two outlets.

Who it is for

• Auto body repair shops needing organized, mobile stations for paint jobs.
• Fleet maintenance operators requiring efficient touch-up facilities for vehicles.
• DIY automotive enthusiasts who want a professional-grade setup for home garages.
• Paint product distributors looking to offer branded, functional display carts to retail partners.

How it works

The main parts

Operating steps

1. Position the cart: Push the cart using the handles until it is near the vehicle area. Engage the front locking casters to stabilize it.
2. Prepare masking: Pull masking paper from the rotary axle and adhesive tape from the fixing axle. Cut both to size using the cutting blades located at the front of the protrusion baffle plates.
3. Manage paint: Open the rotary flip closing lids of the paint storage box. Use the work top for mixing or staging. Waste solvent from cleaning guns can be poured into the solvent waste accommodating groove, which drains through the flexible pipe into the slop collecting vessel inside detachable box b.
4. Connect air: Attach the air hose to the inlet of the three-way interface. Connect one line to the spray gun and the second line to a venturi mixer to assist with delivery of water-based paint.

Applications

Auto body refinishing booths

Technicians use the cart to keep paint, masking materials, and waste solvents within arm’s reach, reducing trips to the supply room and maintaining a clean booth floor.

Mobile fleet touch-up units

For bus or truck fleets, the cart provides a contained environment for minor paint repairs, with the locking wheels ensuring safety on uneven loading docks.

Educational training centers

Vocational schools teaching automotive painting benefit from the integrated design, which demonstrates proper workflow organization and waste handling procedures.

Retail paint counters

Stores selling automotive paints can use the cart as a demonstration unit, showing customers how masking and application tools integrate into a professional setup.

Where it is less suitable

• Heavy industrial welding: The solvent-focused layout is not intended for high-heat or heavy-duty metal fabrication tasks.
• Outdoor weather exposure: The open drawers and electronic-free mechanical locks may degrade if left in rain without covers.
• Large-scale production lines: The manual nature of the masking and single-gun capacity limits throughput compared to automated spray cells.