Tubular Design of Office Chair Cushions

Products with tubular designs in office chair cushions mainly achieve breathability, support force adjustment, and anti-decubitus functions through hollow tubes, hoses, or inflatable tube structures. Common types include the following:

1. Hollow Tubular Support Design
   The RICO H-shaped back cushion adopts a hollow tubular structure, with its core advantages being air circulation and malleability. The hollow tubes form natural ventilation channels, reducing the stuffy feeling during prolonged sitting. Meanwhile, the flexibility of the tubes allows users to adjust the cushion thickness according to their body curves. For example, the lumbar support area can adjust the support force by compressing or relaxing the tubes, achieving a personalized fit to the waistline, suitable for office scenarios requiring long periods of sitting.

2. TPU + Lycra Inflatable Cushion
   This type of cushion combines TPU (thermoplastic polyurethane) with Lycra fabric, forming an anti-decubitus structure through inflatable tubes. TPU material has high elasticity and pressure resistance. After inflation, the tubes evenly distribute body pressure, avoiding local compression that can lead to poor blood circulation, especially suitable for wheelchair users or office workers who need to sit for long periods. Lycra fabric enhances breathability, reducing sweat accumulation, and balancing comfort with functionality.

3. Hose Structure Heat-Dissipating Cushion
   The summer breathable rubber tube wooden frame cushion uses hose filling. The gaps between the hoses form a three-dimensional ventilation network, accelerating heat dissipation. Its material is usually high-density polyethylene or silicone, which is wear-resistant and easy to clean, suitable for high-temperature work environments like garment factories or summer office scenarios. Some designs embed the hoses in a wooden frame, maintaining structural stability while further enhancing air circulation through the gaps in the frame.

4. 3D Inflatable Air Layer Design
   The 3D inflatable cushion builds a three-dimensional support system through multiple layers of TPU inflatable tubes. The air layer can dynamically adapt to changes in sitting posture, dispersing pressure on the buttocks and thighs. For example, during prolonged sitting, the tubes automatically adjust the air pressure distribution, reducing stress on the lumbar spine and coccyx, lowering fatigue. This type of design is often used in medical rehabilitation or high-end office chairs, emphasizing a "sitting without fatigue" experience.

5. Removable and Washable Hose-Filled Cushion
   The Japanese MUJI hose cushion uses independent hoses as filling, with an outer layer made of breathable cotton and linen or polyester fiber fabric. The hoses can flow freely, adapting to different sitting postures. Meanwhile, the outer layer can be removed and washed, solving the problem of traditional sponge cushions being difficult to clean. This type of cushion is mostly used in lazy sofas or floor cushions, but by adjusting the hose density and thickness, it can also be adapted for use in office chairs.

Function Summary: The core logic of tubular design is to achieve breathability (through hollow/hose gaps), pressure dispersion (through inflation/hose flow), and adjustability (in terms of thickness/support force adjustment) through structural optimization. Some products also take into account anti-decubitus and easy-cleaning needs, suitable for different office scenarios and user requirements.