Chinese name: park chair mbth: park bench attribute: products for passers-by to rest outdoors. Venue: parks, residential areas, scenic spots and other disciplines: architectural composition: the origin and classification of chair bars and legs, armchairs, * * * chairs, swivel chairs, rocking chairs, rattan chairs, folding chairs, comparison, composition, chair bars, chair legs and design. Its origin can be traced back to the Han Dynasty. There are women sitting on square stools and cross-legged stools in the murals of Cave 257. There are women sitting on round stools in the stone carving of Lianhua Cave in Longmen. These images vividly reproduce the use of chairs and stools by bureaucrats and aristocratic families in the Southern and Northern Dynasties. Although the furniture at that time had the shape of chairs and stools, people used to call it "Hu bed" because there were no chairs and stools at that time. In temples, it is often used for meditation, so it is also called a Zen bed. After the Tang Dynasty, the use of chairs gradually increased, and the name of chairs was widely used and separated from the category of beds. Therefore, when it comes to the origin of chairs and stools, we should start with Hu Chuang in the Han and Wei Dynasties. Classification of armchairs The general term for armchairs with armrests. Except for round-backed chairs and top chairs, others are called armchairs. Its style and decoration are simple and complicated, and it is often matched with the coffee table. There are four chairs and two chairs on both sides of the hall, which are displayed symmetrically. * * * Chair * * * can dredge meridians, circulate qi and blood, and keep the balance of Yin and Yang in the body. Therefore, after * * *, you can feel relaxed muscles and flexible joints, which makes people refreshed and relieves fatigue, and plays an important role in maintaining health. The principle of * * * chair is to imitate artificial * * *, but it uses mechanical rolling force and mechanical force extrusion to carry out * * *. * * * The chair can perform deep-seated * * * movements along the spine by swinging, shiatsu, pinching and kneading according to the curve of the human body. When people sit in chairs and enjoy the whole body relaxation, it seems that someone is rubbing their backs and shoulders for them. There is not much difference between the upper part of the swivel chair and the general chair, except that there is a rotating shaft part called "one leg" under the chair surface, so the human body can rotate left and right at will when sitting. The swivel chair appeared not too early, and it was a kind of chair that China furniture absorbed foreign styles earlier. A chair that can swing back and forth. Rattan chairs are made of bamboo, and all kinds of chairs are made of rattan skin. Correspondingly, there are rattan armchairs, rattan round chairs, rattan plush chairs and other varieties. The rattan chair is both breathable and elastic. It is best to choose a chair with a backrest and put a footstool, so that your legs can lie flat and prevent lower limb ischemia. Folding chair For many centuries, folding chair has been regarded as one of the most important furniture and a symbol of social status. In ancient civilization, folding chairs were not only used for people to sit, but also for various formal occasions and ceremonies. Compare the advantages of round pure wood seats: round seats give people a sense of freedom and save space. Disadvantages: this kind of seat has no backrest and can only rest for a while. Advantages of wood-like benches: This kind of benches are durable, strong and easy to change into various colors. Disadvantages: The seat is too hard and uncomfortable to do. Advantages of metal single seat: the metal seat has mechanical beauty, and everyone has independent space. Disadvantages: the cost is relatively high, which is not suitable for rainy areas and easy to embroider. Advantages of backrest stone seat: simple and durable, not afraid of wind and sun. Disadvantages: its surface is hard and it can't sit after sun exposure. Part 1: wooden chair bar 1. Cut logs into the required specifications for chair bars and dry them. (natural air drying or steam drying) and then carry out a series of treatments to ensure the smoothness of the chair strips before painting. 2. The paint treatment is roughly like this: the wood is sprayed with primer several times and then polished. Use grinding equipment to remove burrs from the wood surface, and then spray top coat evenly. Second, plastic wooden chair strips 1. Add PE PVC PP PS and wood flour and stir. 2. Put the powder into the wood-plastic extrusion equipment, heat it, set it and process it into the size of a chair. Plastic wood chair bars are waterproof, moisture-proof, non-cracking, non-expansion and non-deformation. Flame retardant, conductive, self-extinguishing in case of fire, no toxic gas emission. Anti-ultraviolet and anti-aging. Multi-color, multi-texture, good finish and strong wood texture. No paint, zero methanol, no ammonia, benzene and other decorative pollution problems. Generally, wood needs to be treated with topcoat or water-based paint. Low carbon, environmental protection and recycling. 100% recycling. No cracking, no expansion, no deformation, no maintenance, easy cleaning, saving later maintenance and maintenance costs. Wood generally needs 1 year maintenance or painting. In the long run, the maintenance cost of plastic wood is far lower than that of wood products. Wood-plastic is a kind of profile, which can produce materials with the length required by customers. The length of all wood is dead. Durable, cost-saving, and the service time is as long as 15 years. Plastic wooden chair strips. Other materials 1. Anti-corrosion wood: wood has been treated with special anti-corrosion treatment, which has the effects of anti-corrosion, anti-termite and anti-fungus. According to different processes, the anti-corrosion effect will be different. 2. Carbonized wood: also known as heat-treated wood, it carbonizes the effective nutrients of wood. In fact, the earliest carbonized wood is the bottom processing technology of wooden telephone poles. I believe everyone knows. Chair foot part 1. Steel feet are formed by stamping, welding and bending steel plates or steel pipes. This chair has strong plasticity, changeable styles and simple and modern shapes. After pickling, phosphating and plastic spraying, the appearance quality and anti-corrosion and anti-rust ability of steel structure surface have been improved. Second, the cast iron feet are mostly made of gray cast iron, and there are also some malleable cast iron (upgraded products of white cast iron), which are stable and generous, sturdy and durable, and the styles are mostly European, and now they have been integrated into modern elements. The products are fashionable, most commonly used in this kind of products, and have strong anti-corrosion and anti-rust ability when used outdoors. Thirdly, the cast aluminum foot adopts precision casting and permanent mold casting. The product is exquisite and beautiful, without losing the steadiness of cast iron feet and the lightness and conciseness of steel feet, which is the best choice for outdoor use. But because of its high price, it is rarely seen in public. Fourth, the special chair foot for stone feet is huge, made of granite (a kind of granite), which is resistant to weathering and corrosion, suitable for outdoor use all year round, and very convenient to take care of. Design function 1 From the motivation of sitting, leisure chairs should give people the greatest comfort. 2. The included angle between waist and leg that gives the greatest comfort is 135, which is close to the recliner. 3. The materials of leisure chairs are all soft materials, which make people fit the seats as much as possible. 4. The color matching of leisure chairs is more comfortable, and serious cold colors such as black and white will not be used. Armrests and legs of steel-wood armchairs are made of steel, but the chair body is not made of pure wood. It is a synthetic material, which is partial, but not strong. Can't be exposed to the sun and rain, it will corrode. Steel armchairs are all made of steel, which is more expensive and cooler in summer, but it will be cold in winter, and it will do harm to the skin and corrode the paint for a long time, which is not beautiful. Steel-wood bench is a combination of steel and wood, which is a common seat in the park. This kind of chair is not suitable for long-term rest, and the wood is easily deformed. The surface of the stone armchair will wear away, and the direct heat of the sun in summer makes people unable to rest. The stone is of good quality. Once it is set, it can't be moved. Cast iron bench is fixed by iron frame, which is not easy to deform. Iron chairs are easy to corrode and rust, and the maintenance cost is relatively high. Therefore, when designing park chairs, we should combine the specific circumstances such as environment and crowds to bring convenience to people and make the environment more harmonious.