JP2001249619A - Strength reinforcement of liquid crystal display, such as television and reinforcement of resource saving type used for fitting to outer frame and mounting metallic frame - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the costs of resource saving sources on the earth and liquid crystal displays and the man-hours for the same by eliminating the need for discarding the inner sides of metallic frames of a rectangular shape as scrap when the metallic frames of the liquid crystal displays are made of blank metallic sheets. SOLUTION: Frame members are divided to >=2 pieces and are welded by using electricity as energy and are welded by laser beams after pressing. The frame members formed by welding >=2 pieces of parts and subjecting the assembly to drawing and bending and a welding system after the drawing and bending are also included. Further, the frame members formed by development press blanking than welding the parts after bending of the respective parts are included. Separate welding of the respective sides to two pieces, three pieces or more of the respective parts is also included. A press caulking is also included for a joining system.

Description

DETAILED DESCRIPTION OF THE INVENTION

The environment on the earth corresponds to the resource saving in the era of the problem and contributes to the cost reduction of the liquid crystal display.

2. Description of the Related Art It has been determined that molding with high precision a L-bent product as described in claim 1 is impossible with the conventional technology.

[Problems to be Solved by the Invention] It has been determined that it is unavoidable to discard the material as a loss. This is a change in the idea. In claim 1, the precision of the product can be improved and reduced by bending the flat plate on each side after welding. However, although the processing accuracy is slightly reduced, welding after drawing bending is also possible. In the processing method according to the second aspect, since the number of processing steps can be greatly reduced, the method can be put to practical use.

[Means for Solving the Problems] Means Corresponding to Claim 1 In order to minimize the metal material, the functions at the time of product design are well understood, and only the functions of the edge frame are considered. The product was designed with a focus on function, and the method was basically the drawing and bending method after welding. • Means corresponding to claim 2 Further changing the idea As a method that can reduce material loss and reduce the number of processing steps, the minimum welding process with the unfolded product shape that enables completion by bending instead of the drawing process It can be completed in several places.

[Actions and Functions] The actions and functions do not decrease and do not change from those of the related art.

[Effects of the Invention] In an era where natural destruction is the most important issue, resources can be saved and the cost of selling to the market can be reduced, which can contribute to the spread of the liquid crystal television era.

[Brief description of the drawings]

FIG. 1 is a schematic description of a metal (stainless steel or the like) metal frame and a liquid crystal display. A metal frame is obtained by pressing a square plate material and then forming a square hole on the inner diameter side after press drawing.

Fig. 2 Explanation of the figure corresponding to claim-1 Divided into two or more pieces to prevent material loss on the inner diameter side, minimize the loss as in the case, press, and then use welding or electricity as energy. Weld with laser beam.

FIG. 3 is an explanatory view corresponding to claim 2. 3. A drawing in which a, b, and c portions are bent and welded into three shapes after extracting a press as shown in a hatched diagram, bending as shown in FIG. The three hatched lines show two, three or more welds on each side except for one.

FIG. 4 Welds both ends of L-bent material further bent in U-shape (including addition of one or more L-bending material)

FIG. 5 L-bend, U-bend two, L-straight two or more welded

FIG. 6: Four or more L-bends welded at four corners

Claims (3)

A schematic description of a metal (such as stainless steel) metal frame and a liquid crystal display. When the current rectangular metal frame was made from thin metal sheets, the inside was discarded with scrap. Fig. 1 A metal plate (stainless steel, etc.) made of metal (schematic metal frame is a separate sheet). A square plate material is press-drawn and the inner diameter side is made square. The inner square hole press scrap is discarded and wasteful of resources. Was. The schematic diagram of the metal frame has a thickness of 0.3 to 6.0, and the four corners are press-bent or narrowed to increase the strength. Schematic of LCD display 1. In order to prevent material loss on the inner diameter side, the steel sheet is divided into two or more pieces and pressed with a minimum loss as shown in FIG. This makes it possible to greatly reduce materials and also helps prevent the destruction of the natural environment. Fig. 2 shows a case where two or more parts are welded and drawn and bent, as in the example after unfolding and extracting from hoop material. However, it also includes the welding method after drawing bending. Feeding with a pre-hood hood A rectangular metal frame is formed by welding two 2L-shaped ones that have been developed and pressed into a press L shape. Unfolded shape example Joining welding a, b The center line indicates press bending or drawing. Example of a product with a different developed shape Joining welding is indicated by c and d. The center line indicates press bending or drawing. 2. A metal frame attached to a liquid crystal display is formed by changing a drawing process from a flat plate material, and using a re-bending method, a single bent plate is formed into an L-shaped bent metal frame at each corner or four sides from the middle. . Including a combination of two or more pressed L-bending materials. Fig. 4 ・ Bending material is bent into a U shape and welded up and down (including L bending material added by dimension adjustment). Fig. 6 ・ Metal frame made of 4 L-bend straight members (including 4 or more by adjusting 4 dimensions), and individual parts are welded. Adhesion is performed by welding using electric energy or laser beam. This will greatly reduce materials and help prevent the destruction of the natural environment. Fig. 3 shows the result of punching out the unfolding press as shown in the hatched diagram, bending it L as shown in 2, and then bending and welding the parts a, b and c into three shapes. And those individually and individually welded. Fig. 4 (L-bend and U-bend welded on two sides.
(Includes the addition of straight L-bend parts.) Fig. 5 Two L-bends and two straight members welded after L bend. (Includes the addition of straight L-bend parts.) Fig. 6 Welded four corners of four L-bend parts. (Includes straight L-bend components) 3. The joining method according to claim 1 or 2 includes a press caulking method.