The auditorium chair
The auditorium chair, most by the chair seat, chair, armrest and stand feet four parts. Usually stand feet and arms together constitute a strong installation armrest. Structure is commonly steel structure or the steel model structure。
1. Stand feet, landing on one foot (feet ground alone) and rail station foot landing (standing foot directly with armrest frame phase coupling) two kinds. Single leg landing seat standing foot support seat, the center of the besides its beautiful, also facilitate the use of chair foot other facilities connected with the environment, such as air vents, power supply interface, etc. Because the connecting way of single leg is relatively complex, the single leg agency cost increased accordingly. Armrest standing foot landing approach, strong, reliable, convenient fixation and installation, armrest frame combined with standing JiaoXiang, simple structure. Station is the basis of the auditorium chairs supporting feet, usually with anchor bolt to violence (screw) fixed on the ground directly.
2. The armrest, auditorium chair armrest is the base of the seat support parts, a major part of the seat are connected with handrail. Handrail structure: metal frame: armrest frame, also is basically the support of the auditorium chair fittings. Hold hand (rail surface) : made from wood or other material such as plastic. Clipboard mechanism: the handrail can be installed tablet of auditorium chair, so that the meeting record.
3. Package - typically from fabrics, cushions, shelves, rotating mechanism and outer panels. Fabric: general use fabrics such as hemp flocking, velvet, or car; Also do some use leather, imitation leather, fabric and so on. Cushions: made from PU (polyurethane) foam, density of 40 ~ 60 kg/M3 is more appropriate. Include: according to different design, simple structure of using bent wood plywood, plastic board, senior seat use spring metal frame, plastic inner shell, etc. Rotating mechanism: divided into gravity response mechanism and spring return mechanism, gravity response mechanism is simple, reliable, no maintenance,Often equipped with rubber sound deadening mat to eliminate the impact and noise when reply; Using spring back reply mechanism can make the volume smaller, flexible in structure design, coupled with the reply after damping device can make the movement controlled, sport becomes slow, completely eliminate the impact and noise; Other European patent technology from France - pneumatic reply has been introduced into China market, the initiating device makes the chair cushion in the process of open and reply won't be any disturbing noise, light, elegant, safe, strong, and as the hidden unit, do not affect the seat shape is beautiful. Plating: according to the requirements of the design can use wood, plastic or other materials, the main effect is decorated and connected to the response organization.
4. Backpack - typically consists of fabrics, cushions, lining plate and the plate. Fabric: general use fabrics such as hemp flocking, velvet, or car; Also some use of leather and imitation leather fabrics. Cushions: made from PU (polyurethane) foam, 35 ~ 50 kg/M3 density is more appropriate. Lining plate: according to different design, can use bent wood plywood and metal frame structure, in metal frame structure as the steel frame, steel frame sometimes be buried directly in the middle of the sponge. Plating: same as base plate function, also can use wood, plastic or other materials, the main effect is decorated and connected to the armrest..
Also has a certain range of the scale of the seats, according to ergonomic design, scale control in commonly: : high seat surface peak, the distance to the ground hard seat surface 400 ~ 420, 420 ~ 440 mm soft seat surface; Wide: also called empty inside, refers to the distance between the two rails; In order to have a good sense of sat generally greater than 400 mm; Deep: from front to the back of a chair seat; General is 400 ~ 450 mm; Back high: the size of the panel to the highs of the back of the chair; High total: distance from the highs of the back of the chair to the ground; Armrest: rails from high to the ground; Deep: a seat in the front to the back of the chair point distance, general influence seat row spacing; Including tablet depth: clipboard open seat maximum depth; Angle: plane and horizontal plane Angle, generally for 2 ~ 5 °; Back Angle: on the back with the horizontal Angle, generally is 100 ~ 100 ° row spacing: before and after the two rows of seat in the distance; Distance: also known as the center distance, refers to the left and right two seats in the distance; Arc discharge radius: qualifying line curvature radius of circular arc form;