Hidden Screw Office Chair

The typical representative of hidden screw office chairs is the Brant chair, designed and produced by Ergonor United Friend Chair Industry. It features a screw-hole-free exterior and a patented cable-controlled chassis, requiring specific tools and adherence to safety protocols for disassembly.

1. Typical Design of Hidden Screw Office Chairs

The Brant chair is a flagship model of hidden screw office chairs, with its core design centered on a screw-hole-free exterior. Fixed components are concealed within the internal structure, enhancing overall aesthetics. The chair incorporates an exclusive patented multi-functional cable-controlled chassis, integrating height adjustment, tilt, and locking functions for user-friendly operation while minimizing exposed mechanical parts. This design is not only suitable for office settings but also prevalent in high-end furniture, emphasizing a balance between structural stability and visual simplicity.

2. Disassembly Tools and Methods for Hidden Screws

1. Universal Tool Selection

   • Adjustable Wrench: Suitable for hexagonal or irregularly shaped hidden screws, allowing adjustment of the opening size to match the screw head and prevent slippage.
   • Suction Cup Tool: For smooth surfaces like chair backs or seats, it uses suction to lift coverings and expose hidden screw locations.
   • Specialized Screwdrivers: Some hidden screws use non-standard specifications (e.g., star-shaped, triangular), requiring matching tools to avoid damaging the screw head.

2. Operational Steps

   • Locate Screws: Examine chair seams, decorative strips, or bottom labels; some designs feature small openings or indicator marks.
   • Remove Coverings: Gently lift surface materials using a suction cup or plastic pry tool to avoid scratching the finish or leaving marks.
   • Unscrew: Select the appropriate tool based on the screw head type and turn counterclockwise until fully loosened, retaining washers or springs as small accessories.

3. Safety and Protection Precautions

• Power Disconnection: If the chair has electric functions (e.g., massage, heating), disconnect the power before disassembly.
• Controlled Force: Hidden screws may corrode over time; apply even pressure during disassembly to prevent screw breakage.
• Document Structure: Take photos or mark component positions before disassembly to facilitate reassembly alignment of holes or wiring.
• Child Safety: Store small disassembled parts (e.g., screws, washers) securely to prevent ingestion or loss.

4. Handling Special Structures (e.g., Hidden Screws in Knobs)

Some office chairs conceal screws within adjustment knobs. First, locate the fixing point (usually at the bottom or side of the knob) and use a Phillips screwdriver to turn counterclockwise until loose. Retain washers during disassembly and stack them in the original order during reassembly to ensure smooth knob operation without noise.