Design of Dual-Person Office Chairs

The specific design of dual-person office chairs should be customized based on functional requirements and collaborative scenarios. Currently, there is no unified standard design, but the following directions can be referenced:

1. Dual-Back Linked Structure: Adapting to Ergonomic Needs
Drawing inspiration from the "dual-back design" of the Jingdong Jingzao Z5 Pro, dual-person office chairs can adopt independent dual-back modules that provide dynamic lumbar support through adjustable lumbar supports (e.g., 20° rotation, 3-level lumbar support modes). Elastic connectors can be added between the dual backs to ensure that the two users can operate independently without interference while maintaining overall structural stability. The height of the chair back is recommended to reference the high-back model of the Shuangmuma office chair (approximately 60-70 cm) to meet the neck support needs of users of different heights.

2. Adjustable Modular Design: Enhancing Usage Flexibility
According to general design recommendations, dual-person office chairs should integrate multi-dimensional adjustment functions:

• Seat Height: Utilize pneumatic height adjustment rods to accommodate a height range of 150-190 cm;
• Armrests: Support 4D adjustment (up and down, forward and backward, left and right rotation, angle tilt) to adapt to keyboard operation or meeting scenarios;
• Chair Back Recline: Provide a 120°-150° backward lock to meet the need for short breaks;
• Additional Features: Such as detachable footrests (referencing the Shuangmuma model with footrests), hidden storage pockets, or charging ports to enhance practicality.

3. Collaborative Scenario Adaptation: Open or Side-by-Side Layouts

• Open-Facing Design: For discussion scenarios, a symmetrical dual-seat structure can be designed with a 20-30 cm gap in the middle, paired with a rotatable base (360° rotation + locking function) to facilitate face-to-face communication;
• Side-by-Side Workstation Design: For shared office spaces, an integrated connected frame can be used, with shared armrests or a central control panel (e.g., synchronous seat height adjustment) to save space while maintaining independence.

4. Material and Safety Considerations

• Breathability: Prioritize high-elasticity breathable mesh fabric (e.g., nylon + polyester fiber blend) for the chair back and seat cushion to prevent discomfort during prolonged use;
• Load-Bearing and Stability: Use a five-claw nylon base with silent universal wheels, with a single-seat load-bearing capacity of ≥120 kg to ensure safety when used by two people simultaneously;
• Environmental Friendliness: Choose materials that comply with EN1335 or BIFMA standards to reduce the release of harmful substances such as formaldehyde.

Summary: The design of dual-person office chairs should focus on ergonomics, adjustability, and collaborative scenario adaptation as its core principles, incorporating features such as dual-back linkage and modular adjustments, and optimizing based on the structural characteristics of existing products. During actual development, it is recommended to conduct user research or 3D modeling tests to balance functionality and cost, ultimately achieving a unified experience of efficient collaboration and comfort.