BK-A03 Hand-cranked armless no storage lunch break chair
- Desktop specifications: Length 650 × Width 450 (±5) (mm), manual height adjustment (minimum 580, maximum 760)
- Dimensions of the desk drawer (in millimeters): Length 500 × Width 350 × Height 130 (±5)
- The thickness of the headrest cushion is 8mm. The dimensions are: (mm): 299 × 117 × 80 (±5)
- Backrest dimensions (mm): Width 410 × Height 375 × Thickness 67 (±5)
- Panel shape dimensions (mm): 415 × 430 × 92 (±5), wall thickness 5mm.
Detailed Introduction
Ⅰ. Materials
The tabletop is made by injection molding with a new type of environmentally friendly ABS engineering plastic material, which has functions such as impact resistance and no deformation. The size is stable and does not deform. The frame is made of high-quality flat round tube steel. The base (mm) is 30×60×1.2 (±0.1) mm. The lifting tube specification is (mm) 25×50×1.2 (±0.1). The table drawer, backrest, seat panel are made by one-time injection molding of PP plastic. Recycled materials are not allowed. The headrest is made by injection molding with a new type of PP impact-resistant plastic, and is combined with PU soft padding for secondary molding. The softness of the soft pad is 35 degrees. Recycled plastics are not allowed.
Detailed Introduction
Ⅱ.Functions
The desk top can be tilted at 45 degrees. This makes it convenient for the students in the front row to lie down without having to raise the desk. It is also easy and practical for them to use during nap time. The operation is simple and clear, and it can be mastered in one lesson. The headrest is designed based on the ergonomic curve of the adolescent head, ensuring that the head receives perfect support during nap time, reducing the tension in the cervical spine, and enabling students to quickly fall asleep. The backrest and seat surface are designed according to the ergonomic chair, providing good support. At the same time, they are designed based on the ergonomic curve of the adolescent spine, effectively reducing fatigue. Both the backrest and seat surface have ventilation holes on both sides, which have a cooling and ventilation function, prevent sweating, and keep the air circulating and dry. They are comfortable to sit for a long time. The backrest uses an infinitely adjustable mechanism, and the outer shell is assembled using an aluminum die-casting shell. In the middle, there is an aluminum die-casting base assembly connected to a planetary external gear, forming a gear box mechanism. The middle part is designed using the planetary gear box principle, with the main components being three key parts.
