1201B

Product size requirements:

Foot size requirements:

The armrest writing board is tilted upward 6.5 degrees, and a hardware foot sample is required.

Technical requirements:

1. The seat is designed and manufactured according to the principles of ergonomics and morphological aesthetics. The curvature of the seat and back cushions fully conforms to the curve of the human body. The armrest frame and the bottom foot are stamped with high-quality hot-rolled plates, and the foot tube is made of high-quality hot-rolled plates welded by carbon dioxide. The surface is treated with rust-proof electrostatic spray matte black. The seat height and seat depth are reasonable, the sitting feeling is comfortable, the seat cushion can automatically return, and the seat appearance is simple and beautiful.

2. The basic center distance of the seat is 580±1.0mm, the side depth of the seat bag when opened is 720±1.0mm, the side depth of the writing board when opened is 860±1.0mm, and the basic chair height is 1000±1.0mm. Minimum row spacing: 900mm.

3. Writing board: It is die-casted with aluminum alloy mold, equipped with aluminum alloy rotating head, the panel is made of high-density medium-density fiberboard, externally pressed triamine board, and PVC edge sealing on all sides. The size specifications are: length 270±1.0mm, width 250±1.0mm, thickness 12mm. The armrest cover and writing board are tilted upwards by 6.5 degrees to ensure a comfortable and natural writing state. When opened and recycled, it must have a muffler function, and there must be no rebound force and noise.

4. The fabric is made of high-grade knitted fabric and has been treated with anti-static and anti-moth treatment. It feels comfortable and will not wrinkle, break, pilling or fade after long-term use.

5. The seat foam is polyurethane cold foam high resilience shaping sponge, seat sponge size: length 470±10mm, width 460±5mm, height 150±10mm, sponge density 50-55KG/M3. Back sponge size: length 750±5mm, width 470±5mm, height 135±5mm, sponge density 40-45KG/M3, high strength, good resilience, unique formula, so that the foam has antibacterial properties, can effectively kill bacteria such as Escherichia coli.

6. All steel materials are made of the highest quality steel, and the welded parts are welded by robots, with high welding quality. The handrail bracket is formed by cold-rolled plate or profile stamping, and the surface is degreased, cleaned, rust-removed, cleaned, phosphated, cleaned, passivated, electrostatically sprayed with powder, cured, cooled, and then electrostatically sprayed with 30 microns of epoxy resin to ensure that the paint film will not rust after the 72-hour salt bath corrosion resistance test.

7. The seat armrests are made of high-quality solid wood with curved shapes. The armrest dimensions are: length 432±2mm, width 80±2mm, height 27±2mm.

8. Seat back outer panel: Made of high-quality high-density hardwood multi-layer board, cold-pressed and molded by mold, no fading, anti-deformation. Back outer panel specifications: length 770±2mm, width 510±2mm, thickness 15mm. Seat outer panel size specifications: length 440±2mm, width 420±2mm, thickness 12mm. Back inner panel: Made of high-quality plywood, molded by mold bending.

The appearance is arc-shaped, beautiful and curvaceous. Dimensions: length 708±2 mm, width 440±2 mm, thickness 6 mm. Seat iron frame: Made of high-quality steel plate by stamping and welding, 5 S-shaped snake springs are welded on the sponge contact surface to ensure the seat is comfortable and elastic. Dimensions: length 420±2 mm, width 410±2 mm, height 56±2 mm.

9. The seat adopts a damping return mechanism, with two-level buffering that is fast at first and then slow, so that the seat can return to its position within 3 seconds and has an escape silencer function. Rubber pads are added to the collision part of the seat to prevent collision and reduce noise, so that the seat opens without noise and returns slowly without impact.

10. The seat legs are made of high-quality 1.8mm thick carbon cold-rolled steel, which is electrostatically sprayed after die stamping, welding, grinding, degreasing and rust removal. They are durable, rust-proof and corrosion-resistant. The left and right sides are equipped with side panels and covered with linen flannel, which is beautiful and collision-proof. The leg dimensions are: length 586±1.0mm, width 427±1.0mm, height 80±1.0 mm.

11. The seat is fixed to the ground with hidden pressure-explosive screws, and the appearance is specially designed with a plastic dust cover to ensure that the chair legs are smooth and beautiful while preventing dust accumulation and facilitating cleaning.