Training Chair needs to start from multiple key parts and design details to avoid safety hazards such as pinching in the structural design.
The first is the movable joints. Training Chairs often have functions such as folding and adjustment. The realization of these functions depends on various movable joints, such as the connection joints between the backrest and the seat, the adjustment joints of the armrests, etc. In design, reasonable gap control will be adopted. For example, through precise mold manufacturing and component assembly, the movable gap at the joint is kept within a safe range, generally not exceeding 5-8 mm, to prevent accidental pinching of body parts such as fingers. At the same time, protective covers or cushions are added to the joints. These protective parts are usually made of soft rubber or silicone. When the joints are active, even if the body parts are close, the protective covers can play a buffering and blocking role to avoid direct pinching.
The second is the automatic folding or rebound mechanism. For Training Chairs with automatic folding function, a reliable locking and unlocking mechanism will be set to prevent accidental pinching. During the folding process of the chair, a slow and uniform folding action design is adopted to avoid strong clamping force generated by rapid closure. At the same time, it is equipped with a safety sensor or trigger device to stop the folding action immediately when an object is detected to block the folding path. For example, some high-end Training Chairs use infrared sensing technology, which interrupts the folding process once it senses an obstacle approaching the folding area.
The other is the angle between the seat and the backrest. This area may be at risk of pinching during use, especially when the user adjusts their sitting position or stands up. In terms of design, the connection between the seat and the backrest is made into a rounded arc transition to avoid forming a sharp angle. And soft materials such as sponge or foam are filled inside the angle, which not only improves comfort but also reduces the possibility of pinching.
For Training Chairs with adjustable parts (such as height-adjustable armrests), clear operating instructions and warning signs will be marked on the adjustment mechanism. Inform users of the correct operating method and remind them to pay attention to safety during the adjustment process to prevent pinching due to misoperation.
