1209G

Product size:

Aluminum alloy foot size and technical requirements:

1. The net weight of the aluminum alloy handrail frame is ≥ 2.9KG, and a handrail frame sample is required

2. The casting process must not have large pores, looseness, slag inclusions and other undesirable phenomena.

3. There should be no burrs or flash around the foot after it is formed.

4. Surface sandblasting: gray.

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 560±5mm, the side depth of the seat when opened is 760±5mm, the basic seat height is 1025±5mm, and the minimum row distance is 950mm.

3. Under the premise of ensuring the comfort of the audience, the back cushion height shall not exceed 1025mm to increase the sound reflection area of ​​the chair backboard and improve the sound absorption of the seat; sound-absorbing holes shall be made on the seat bottom plate as needed to keep the sound absorption of the seat as consistent as possible at different occupancy rates.

4. Hidden writing board: The aluminum head and support plate of the writing board are made of high-quality aluminum alloy material through die-casting. The writing board panel is made of ABS composite material through mold injection molding. The writing board is fixed by mechanical high-strength bolts, so that the connection parts of the writing board become stronger and stronger with use, and there will be no loosening. Dimensions: length 381.2±2mm, width 261.2±2 mm, thickness 45mm; the armrest and writing board are tilted upward 6.5 degrees to ensure the natural state of writing. The writing board must have a muffler function when it is opened and recycled, 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 480±10mm, width 460±5mm, height 150±10mm, sponge density 50-55KG/M3, back sponge dimensions: length 460±5mm, width 750±5mm, height 140±5mm, sponge density 40-45KG/m3, high strength, good resilience, and unique formula make the foam antibacterial and can effectively kill pathogens such as Escherichia coli.

7. 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 355±2mm, width 60±2mm, and height 30±2mm.

8. 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.

9. 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: length 762±2mm, width 495±2mm, thickness 15mm. Seat outer panel dimensions: length 440±2mm, width 425±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: length 715±2 mm, width 450±2mm, thickness 6 mm. Seat iron frame: Made of high-strength high-quality carbon steel plate, stamped, bent and welded, and 5 2.5mm diameter S-shaped snake springs are 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.

10. Aluminum alloy handrail frame: Made of high-quality aluminum alloy material, it is die-casted and polished to prevent oxidation. It has a built-in sunken writing board with opening and recycling function, and ensures that the writing board has enough space for activities. The aluminum alloy handrail is ≥55mm wide and weighs ≥2.9KG. The handrail surface adopts a curved design to ensure the full beauty of the product. The test board is made of anti-fouling and dust-proof high-grade fabric and 3MM multi-cotton medium-density fiberboard with external buckles.

11. The seat is fixed to the ground with ground screws and decorated with plastic dust covers to ensure that the chair legs are smooth and beautiful while preventing dust accumulation and facilitating cleaning.