1101C

Product size requirements:

Technical requirements:

1. The chair is designed and manufactured according to the principles of ergonomics and morphological aesthetics. The curvature of the back cushion and seat cushion fully conforms to the curve of the human body. The seat height and seat depth are reasonable, the sitting feeling is comfortable, the seat cushion can automatically return to its original position, and the appearance of the chair is simple and beautiful.

2. The basic center distance of the seat is 600±5mm, the side depth of the seat when opened is 695±5mm, the side depth of the writing board when opened is 815±5mm, the basic chair height is 1000±5mm, and the minimum row distance is 900mm.

3. Under the premise of ensuring the comfort of the audience, the back cushion height shall not exceed 1000mm to increase the sound reflection area of ​​the chair backboard and improve the sound absorption of the seat; sound-absorbing holes shall be made in the seat bottom plate as needed to keep the sound absorption of the seat as consistent as possible at different occupancy rates.

4. 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.

5. 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.

6. The seat foams are all polyurethane cold-foamed high-resilience shaping sponges. The seat sponge dimensions are: length 470±10mm, width 440±5mm, height 125±10mm, and sponge density 40-55KG/M3. The back sponge dimensions are: upper back sponge length 285±5mm, width 460±5mm, height 80±5mm, lower back sponge length 405±5mm, width 460±5mm, height 155±5mm, and sponge density 35-45KG/M3. It has high strength, good resilience, and unique formula, making the foam antibacterial and can effectively kill pathogens such as Escherichia coli.

7. The seat bracket steel is made of high-quality cold-rolled steel, and the welded parts are welded by robots with high welding quality. The surface is degreased, cleaned, rust-removed, cleaned, phosphated, cleaned, passivated, electrostatically sprayed with powder, solidified, 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.

8. The seat armrests are made of high-quality imported oak solid wood, with curved shapes, no deformation or cracking, and the armrest dimensions are: length 454±2mm, width 85±2mm, and height 27±2mm.

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. Seat back inner and outer panels: Made of high-quality high-density hardwood multi-layer boards, cold-pressed and molded by molds, non-fading and anti-deformation. Back outer panel specifications: upper back outer panel specifications: length 490±2mm, width 285±2mm, thickness 15mm, lower back outer panel specifications: length 490±2mm, width 425±2mm, thickness 15mm. Seat outer panel dimensions: 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 elegant, with curvaceous beauty. Back inner panel dimensions: upper back inner panel dimensions: length 420±2 mm, width 265±2mm, thickness 6 mm, lower back inner panel dimensions: length 420±2 mm, width 405±2mm, thickness 6 mm. Seat iron frame: Made of high-strength high-quality carbon steel plate by stamping, bending and welding, with 5 2.5mm diameter S-shaped springs added to ensure the comfort, firmness and long-term use of the seat without trouble or abnormal noise. Dimensions: Length 420±2mm, width 410±2mm, height 56±2mm.

11. The seat armrest frame is made of high-quality high-density hardwood multi-layer board with curved shape, no deformation or cracking, and painted surface. The armrest frame dimensions are: length 454±2mm, width 424±2mm, height 85±2mm.

12. Hardware foot: The foot tube is made of high-quality square tube, and the foot tube is made of high-quality steel plate. It is pressed by mold and then welded with carbon dioxide. The appearance is a single-foot under-ventilation structure device. The surface is treated by rust removal, cleaning, oxidation, drying, static electricity, high temperature, and static spraying matte black. The size specifications are: length 495±2mm, width 285±2mm, height 300±2mm.

13. The seat is fixed to the ground with hidden pressure-explosive screws, and the exterior 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.