TWI498201B - Hinge for tool box - Google Patents

Description

Tool box hinge

The present invention relates to a hinge structure; and more particularly to an innovative structural designer capable of providing better support strength of a blow tool box.

According to recent years, due to the prosperity of DIY, many people like to use time to repair or assemble furniture themselves. Therefore, there are usually many hand tools that are commonly used, and tools are generally available for easy access and storage to avoid loss. Box to accommodate these hand tools.

In terms of the current plastic molding technology, there is no technical problem in any size of the tool box, and the only consideration for the industry is the production cost, especially the mold cost. In general, smaller tool boxes are usually made by direct injection molding because of limited materials, and for the sake of internal space, and larger ones are usually produced by air blowing. The reason is that if a large tool is produced by direct injection molding, not only the mold cost is relatively high, but also the materials used are relatively large and the overall weight is high. In the process of molding, in order to avoid unevenness of the shot material or after demolding, Shrinkage, its technical requirements are high and new materials must be used. Therefore, under the double cost considerations, most of the large tools are made by blowing air.

The process change of the aforementioned large tool box can only meet the requirements of a simple double-layer tool box, but in fact there is still no way to meet the actual needs in the market. The reason is that for some users with special needs, the tool box sometimes has to be added to the three-layer or even four-layer structure. Therefore, the manufacturer must design a new mold to match the cause. Hinge that cannot be shared by the specification, so it is necessary to face the problem that the aforementioned mold is expensive. Moreover, in the large tool box, more various tools, even electric tools, must be accommodated. If only the cover of the tool box is opened and flattened, there is certainly no problem. However, if the cover of the tool box is to be opened and maintained at a certain angle, the hinge formed by the conventional blow box will not be able to support such a high weight, and the problem of the aforementioned material selection will still be faced again.

Therefore, in view of the problems existing in the above-mentioned conventional technologies, how to develop an innovative structure that can be more ideal and practical, and the relevant industry should further consider the goals and directions of breakthrough.

In view of this, the inventor has been engaged in the manufacturing development and design experience of related products for many years. After detailed design and careful evaluation, the inventor has finally obtained the practical invention.

The main object of the present invention is to provide a tool box hinge, and the technical problem to be solved is to think about an innovative breakthrough in how to develop a new type of hinge which is more ideal and practical.

The technical feature of the present invention is mainly to form a tool box for pivoting a blow molded tool box; the tool box hinge of the present invention is mainly made by a plurality of aluminum extrusion molding methods. The blade has the same section structure and different lengths, and each blade is pivotally connected by a pivot, and the adjacent blades are respectively fixed to the corresponding tool boxes. The blade is provided with at least one first positioning device for fasteningly fastening the same to the tool case.

The main effect and advantage of the present invention is that it extends into the space which is originally formed by the blowing box body, so that the material of the tool box is not increased, and the different widths can be made by replacing the relatively cheap aluminum extrusion mold. The blade can be combined with different size tool boxes to increase the number of layers of the hinge number expansion tool box, thereby reducing the cost of the mold and providing modularization.

Referring to Figures 1, 2 and 3, there is shown a first preferred embodiment of the tool box hinge of the present invention, but the embodiments are for illustrative purposes only and are not limited by the structure in the patent application; The tool box 50 includes a first box body 51 and a second box body 52 which are opposite to each other. The first box body 51 and the second box body 52 are formed by blowing molding, and the box is formed by blowing. The body itself forms an internal space, and the present invention utilizes this space to pivot the first and second casings 51 in the most economical manner without increasing the volume and material of the tool box 50. 52, whereby the tool box 50 is provided with better bonding strength and supporting ability.

The present invention comprises a plurality of blades 10A of the same cross-sectional structure and different lengths formed by an aluminum extrusion molding method, and each of the composite blades 10A is pivotally connected by a pivot 20 in sequence. The two adjacent blades 10A are respectively fixed to the corresponding first case 51 and the second case 52, so that the first and second cases 51, 52 are opened or closed in a hinge manner. The splicing blade 10A is provided with at least one first positioning device 11A for fastening the same to the first and second casings 51 and 52. In the embodiment, the first positioning device 11A is a penetrating blade. The bolt 13 of 10A is locked to a nut 53 pre-embedded in the first and second casings 51, 52.

Please refer to FIG. 4, which is a second embodiment of the present invention. In this embodiment, the splicing blade 10B has a second positioning device 12A connected to the first and second casings 51 and 52 in addition to the first positioning device 11A. The positioning device 12A is a structural body having an L-shaped cross section, and its free end portion is hooked on a groove 54 formed in advance in the pivotal end edges of the first and second casings 51 and 52. Further, as shown in Fig. 5, the present invention uses the second casing 52 as a base to position the first casing 51 at a fixed horizontal elevation angle θ. Since the end edges of the first box body 51 and the second box body 52 are mutually supported by the second positioning device 12A, the present invention can improve the first box by the setting of the second positioning device 12A. The bonding strength between the body 51 and the second casing 52 allows the first casing 51 to hold a relatively heavy hand tool, and the second casing 52 can maintain a certain horizontal elevation angle after the opening, which is convenient for use. The tool in the tool box 50 is displayed or displayed in the store.

Please refer to FIG. 6 for the third embodiment of the present invention. In this embodiment, the splicing blade 10C has a second positioning device 12B mounted on the pivotal end edges of the first and second casings 51 and 52, in addition to the first positioning device 11A. The second positioning device 12B further includes a bolt 13 that is locked to a nut 53 pre-embedded in the first and second casings 51, 52 after passing through the second positioning device 12B.

Please refer to FIG. 7, which is a fourth embodiment of the present invention. In this embodiment, the blade 10D has a second positioning device 12C in addition to the first positioning device 11A, and the second positioning device 12C is inserted into the first and the first device. A receptacle 55 in the two housings 51, 52.

Please refer to FIG. 8 for the fifth embodiment of the present invention. In the embodiment, the first positioning device 11B and the second positioning device 12D are respectively disposed on the blade 10E, wherein the first positioning device 11B and the second positioning device 12D are directly embedded in the first and the first In the two casings 51 and 52, the first positioning device 11B has a T-shaped cross section and the second positioning device 12D has a T-shaped cross section to provide a better bonding strength.

Advantages of the Invention: The "tool box hinge" disclosed in the present invention is mainly formed by a pivot joint of aluminum extruded blades, and the mold of the aluminum extrusion die is relatively injection-molded and blow-molded. It is much cheaper. Therefore, when the tool box is to expand the number of layers, the present invention can produce various types of combined blades of different widths by replacing the molds, and assembling them without having to separately manufacture expensive molding or blowing molds. In order to produce different sizes of boxes to match the specifications of general commercially available hinges, innovative unique structural types and technical features, the present invention can meet the different needs of the tool box in comparison with the conventional structure proposed in [Prior Art] It is easy to change the width of the structure, and can expand the scope of application of the tool box hinge, thereby achieving the practical progress of reducing the cost of the mold.

The above embodiments are intended to be illustrative of the present invention, and are not to be construed as limiting the scope of the invention. The principles are changed and modified to achieve an equivalent purpose, and such changes and modifications are to be included in the scope defined by the scope of the patent application as described later.

10A, 10B, 10C, 10D, 10E‧‧‧ blades 11A, 11B‧‧‧ first positioning device 12A, 12B, 12C, 12D‧‧‧ second positioning device 13‧‧‧ bolt 20‧‧‧ pivot 50 ‧‧‧Tool box 51‧‧‧First box 52‧‧‧Second box 53‧‧‧ Nuts 54‧‧‧ Groove 55‧‧‧

Figure 1 is a perspective view of the present invention installed in a blow tool box. Fig. 2 is an exploded perspective view showing the air blowing tool case of the present invention. Figure 3 is a cross-sectional view showing a first embodiment of the present invention. Figure 4 is a cross-sectional view showing a second embodiment of the present invention. Figure 5 is a schematic view of the tool box of the present invention supporting the opening. Figure 6 is a cross-sectional view showing a third embodiment of the present invention. Figure 7 is a cross-sectional view showing a fourth embodiment of the present invention. Figure 8 is a cross-sectional view showing a fifth embodiment of the present invention.

10B‧‧‧With blades

12A‧‧‧Second positioning device

20‧‧‧ pivot

51‧‧‧First box

52‧‧‧Second box

54‧‧‧ trench

Claims (5)

A tool box hinge is used for pivoting a blow molded tool box to form a tool box; the tool box hinge is mainly made of a plurality of aluminum extruded materials having the same cross-sectional structure and different lengths. a blade, wherein each blade is pivotally connected by a pivot, and two adjacent blades are respectively fixed on the corresponding tool box; the blade is provided with at least one The first positioning device is fastened and coupled to the tool box; the combined blade is provided with a second positioning device connected to the tool box body; the second positioning device is a structure having an L-shaped cross section. And the free end portion is hooked in the groove formed in the pivotal end edge of the tool box; the hinge of the tool box extends into the space which is originally formed by the air blowing box, so the tool box is not added. The amount of materials used, and the replacement of the relatively cheap aluminum extrusion die can be used to make different widths of the blade, in addition to the different sizes of the tool box, can also be assembled in the expansion of the number of tool boxes, thereby reducing the cost of the mold . The tool box hinge according to claim 1, wherein the first positioning device is a bolt that penetrates the blade and is locked to a nut that is pre-embedded in the tool box. A tool box hinge is used for pivoting a blow molded tool box to form a tool box; the tool box hinge is mainly made of a plurality of aluminum extruded materials having the same cross-sectional structure and different lengths. a blade, wherein each blade is pivotally connected by a pivot, and two adjacent blades are respectively fixed on the corresponding tool box; the blade is provided with at least one a first positioning device fastened to the tool casing; wherein the hinge further extends a second positioning device, wherein the second positioning device is inserted into a cavity formed in the tool box; Tool box hinges extend into The blowing box is inevitably formed in the space, so the material usage of the tool box is not increased, and the aluminum extrusion die which is relatively inexpensive to replace can be used to make the blades of different widths, in addition to the different sizes of the tool box. It can also be assembled in the tool box of the number of expansion layers to achieve the purpose of reducing the cost of the mold. A tool box hinge is used for pivoting a blow molded tool box to form a tool box; the tool box hinge is mainly made of a plurality of aluminum extruded materials having the same cross-sectional structure and different lengths. a blade, wherein each blade is pivotally connected by a pivot, and two adjacent blades are respectively fixed on the corresponding tool box; the blade is provided with at least one The first positioning device is fastened to the tool box; wherein the blade further extends a second positioning device, the first positioning device and the second positioning device are directly embedded in the tool box body; the tool The hinge of the box extends into the space which is originally formed by the blowing box body, so the material usage of the tool box is not increased, and the blade of different widths can be made by replacing the relatively cheap aluminum extrusion mold, except that it can be combined with different The size of the tool box can also be assembled in the tool box of the expansion layer to reduce the cost of the mold. The tool box hinge of claim 4, wherein the first positioning device has a T-shaped cross section and the second positioning device has a T-shaped cross section to provide a better bonding strength.