Details of bookshelf (a device for storing books)

Bookshelf is a device used by people to store books. Due to the different shapes and structures of bookshelves, there are other names such as bookcases, bookcases, and book partitions. Bookshelf is a common appliance in our lives. Basic introduction Chinese name: Bookshelf Foreign name: Bookshelf Categories: Single column type, compound column type, sliding dense bookshelf Bookshelf structure: hanging type, steel-wood combined type, etc. Classification, wooden bookshelf, single column type, compound column type, laminated Bookshelf, dense bookshelf, sliding dense bookshelf, tree-shaped bookshelf, development history, early, Ming Dynasty, Qing Dynasty, advantages, structural function, maintenance instructions, classification Bookshelf in the library can be divided into metal bookshelf and wooden bookshelf according to the material. Metal bookshelves can be subdivided into single column types, multiple column types, laminated bookshelves, dense book stacks and sliding bookshelves. Wooden bookshelf Wooden bookshelf materials include solid wood, helium board, wood core board, particle board, etc., which are processed and formed, and are painted or covered with surface decoration materials to give them a soft texture. The commonly used forms in libraries are upright and L-shaped bookshelves with tilted bases, which are convenient for readers to access books. They are available in different specifications. Single-column type The so-called single-column bookshelf refers to single-column metal lugs on both sides to bear the weight of books on each horizontal partition. Each bookshelf is 90cm long and can be used alone or in continuous arrangement. Generally speaking, the height of the bookshelf is above 200cm, and the top is connected with tie rods for safety. Compound column type refers to the two or more pillars on both sides of the bookshelf, which bear the load of books transmitted by horizontal partitions. However, in order to improve the aesthetics, wooden boards are attached to the sides and top of the metal column-shaped bookshelf. Laminated Bookshelf To make full use of the limited space in the library to store a large number of books, it is a good method to use the strong and durable properties of steel materials to display books on laminated bookshelf. However, each country has its own regulations on the specifications of bookshelf. For example, in the United States, each layer of laminated bookshelf has a clear height of 2280mm, and each layer is divided into 5 to 7 sections; while in European countries such as the United Kingdom, the clear height of each layer is 2250mm, with partitions The single-sided width of the board is 200mm, and the support width is 50mm. Compact Shelving Compact Shelving (Compact Shelving) was designed by Swiss Hans Ingold in the early 20th century. After nearly a century of development and evolution, the use of dense bookshelves has become more and more widespread, and today there are two different forms. One is a movable bookshelf made of metal, which is characterized by that the axial direction (longitudinal direction) of the bookshelf and the track direction are perpendicular to each other. The other is made of wood, with the axial direction of the bookshelf and the track direction being parallel. It is used in the audio-visual rooms of many domestic libraries to store audio-visual materials. The most important and obvious feature of dense bookshelves is to save space for collecting books. It places the front and rear bookshelves closely together, and then uses rails to move the bookshelves, saving the aisle space in front and back of the bookshelves, allowing more books and materials to be placed in a limited space. Due to the close proximity of the bookshelves, it also becomes a place where books can be properly protected; in addition, it also increases the convenience of use and management. But dense bookshelves also have some disadvantages. First of all, the cost is too high. Unless you have a generous budget, it is not easy to have all the facilities (such as lighting and control facilities) for a dense bookshelf. Second is the safety of the bookshelf, which includes safety concerns for general use and earthquakes. Due to technological improvements, dense bookshelf has been changed from the previous mechanical type to electric operation. As long as users follow the steps, the safety is very high. However, the safety of dense bookshelves (for books and people) during earthquakes has always been difficult to fully grasp. They are still vulnerable to damage when a major earthquake strikes. Sliding dense bookshelf Sliding dense bookshelf using guide rails can be divided into two types: manual and electric. The two shelves are fixed, and the middle bookshelf is guided and slid by the base guide rail. This is one of the ways to effectively utilize limited space to store a large number of books. Tree-shaped bookshelf Venetian designer kostas syrtariotis exhibited his latest product "tree-shaped bookshelf" at the kidsroom zoom event of Milan Design Week 2011. As the name suggests, this bookshelf is taken from the shape of a tree. Its branches stretch out on the wall, and users can place books or other small objects on the branches. The designer chose ebony and ash wood boards as the production materials, and the surface was coated with a layer of polished paint.

The "tree-shaped bookshelf" can be assembled in 10 minutes, can be placed against the wall, and can be fixed with only two screws. Overall dimensions are height 12 x length 90 x width 20 cm. In the early history of the development of tree-shaped bookshelfs, although there were books, there may not be bookshelves. As development progressed, humans would put books on fixed and convenient shelves. Therefore, we can speculate that simple furniture such as the early Warring States shelves are bookshelves. prototype. Ming Dynasty This was the peak period of the development of Chinese furniture. On the basis of previous furniture, the furniture of the Ming Dynasty achieved the aesthetic characteristics of beautiful craftsmanship, beautiful materials, beautiful structure, beautiful workmanship, and beautiful decoration. Simple but not simple. The main materials include rosewood, rosewood, wolfberry (chicken wing wood), etc. Hard wood is not only solid and durable, but also has natural texture, color, pattern, texture, smell, etc. The craftsmanship adopts a mortise and tenon structure, with exquisite workmanship, natural lines, and few but exquisite decorations. The style characteristics of Ming-style furniture can be summarized in four words: simplicity, thickness, refinement and elegance. Therefore, Ming-style furniture is not only the pinnacle of Chinese furniture but also the wonder of world furniture. The shape of the bookshelf at that time was almost perfect. Qing Dynasty Due to the luxury and noble pursuit of the Qing Dynasty aristocrats, their furniture was also in a cumbersome style. Although the materials and craftsmanship are similar to those of the Ming Dynasty, their strong decorative qualities are completely opposite to those of the Ming Dynasty. We see unique artistic achievements and sophisticated tackiness. In modern times, new technologies, new materials, new decorative styles, new concepts, etc. are all reflected on bookshelves. At the same time, people began to pay attention to people-oriented, so bookshelves that catered to the needs of different customers appeared. Advantages 1. Hanging type Advantages: Saves the lower space, which can be used for other purposes, and can also play a role in decorating the wall. 2. Advantages of the steel-wood combination type: easy to assemble and disassemble, the height of the shelves can be adjusted freely according to the size of the book, the shelves have strong gravity and are not easily deformed 3. Advantages of the wall-leaning type: choose a certain wall in the room and arrange it against the wall , takes up extremely limited space and is suitable for smaller indoor spaces. The rich shelves in the bookshelf bring great convenience to home offices, and the display function is maximized simply by extending the space upwards. 4. Embedded Advantages: It can be customized according to the items that need to be stored. In addition to the size, their style can also be customized to ensure that the overall style is consistent. In addition, you can also use a closed storage design, that is, place a wooden wall in front of the cabinet. The wooden wall is designed with many small doors. When you open the small doors, you can see the contents of the cabinet. Meanwhile, storage space recessed into the wall can accommodate a variety of furniture and furnishings, from televisions to vases. 5. Advantages of independent bookshelf: It is highly adaptable and can be brought to a new home when moving; it is also suitable for bookworms or book collectors; some people will buy a uniquely designed independent bookshelf to decorate their appearance to express themselves. identity and grade; in addition, independent bookshelf can also be used to block space, similar to the function of a screen. 6. Partition type Advantages: It can be disassembled and assembled, and can be designed by itself to suit the requirements of different spaces. Structural function Bookshelf is usually divided into single-sided bookshelf and double-sided bookshelf. Bookshelf can be infinitely wired depending on the frame. The school bookshelf is generally divided into 6 layers. Of course, it can also be 4 or 5 layers depending on the situation. The conventional specifications are that each frame is 900-1000 in width, 250-350 in depth on a single-sided bookshelf, and about 2000mm in height. The structure and function of bookshelf: 1. The bottom shelf is generally segmented and modular, with docking and interchangeability. New style bookshelf 2. Section type, shelf height, shelf width, number of layers and number of groups can be selected according to customer needs. 3. Powder: electrostatic powder spray, environmentally friendly, non-toxic and odorless. 4. The bookshelf is a frame structure: it is composed of a base seat, columns, shelves, hanging boards, top plates, side guards, bookends and other parts. 5. The support plates of the shelves and hooks are stable and firm after assembly, and the distance between layers can be adjusted freely as needed. Each shelf has an even load-bearing capacity of 40kg on one side and 80kg on both sides. If necessary, increase the load-bearing capacity. Can be specially designed. 6. The welding part adopts high standard fusion welding, and the surface is flat and smooth. 7. According to the latest regulations of the National Archives Administration on A4 paper standards, in order to bring the original national standard A4 paper standard size in line with international standards, it is necessary to increase the height. These technical parameters are formulated in accordance with the national first-level archive standards.

Maintenance Instructions: A humid environment can easily cause the plastic powder on the surface to fall off and cause rust; the placement space should be dry, ventilated and protected from light; the frame should avoid long-term sunlight exposure, as the plastic powder is sensitive to ultraviolet rays and is easy to fade and affect the appearance; it is strictly forbidden to spray plastic on the surface Use gasoline, high alcohol, rosin water, etc. to wipe, otherwise it will cause the sprayed surface to lose its luster and fade. Maintenance instructions: clean with a wet cloth, and then wipe away the water with a dry cloth. For parts that are not easy to clean, you can spray them with toothpaste before cleaning