Light luggage

Abstract

The utility model discloses a light luggage which comprises two luggage bodies which are oppositely buckled up and down, the luggage bodies are made of composite boards, and the composite boards comprise PP (polypropylene) board bodies and surface layers; a hot melting layer is arranged between the PP plate body and the surface layer; the surface layer comprises any one of leather and textile fabric; the surface layer and the PP plate body are compositely connected through the adhesiveness of the material in the hot melting state when the surface of the PP plate body is in the hot melting state, and compared with a mode that the surface layer and the PP plate body are composited through an adhesive in the traditional technology, the surface layer and the PP plate body are more environmentally friendly, and cost is saved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of luggage forming technology, and specifically relates to a light luggage. BACKGROUND

[0002] Vacuum forming is a plastic processing technology, the main principle is that the flat plastic hard material is heated to be soft, and then is vacuum adsorbed on the surface of a mold, and after cooling, the shape is formed. Commonly used vacuum forming materials include PC, PE, ABS, etc. PP plate is a kind of semi-crystalline material, which is harder than PE and has a higher melting point and stronger impact strength. In addition, PP extruded plate has the characteristics of light weight, uniform thickness, smooth surface, high mechanical strength and non-toxicity. The PP material luggage with light weight and high mechanical strength is lighter in weight and higher in mechanical strength than the luggage made of the same PC, PE, ABS and other materials. Therefore, it is more suitable for high-end luggage. However, if the traditional vacuum forming process is used, the surface of the PP plate will have small nodules after vacuum forming. Because the PP plate is stretched in two directions after vacuum forming, the above problems often occur due to the improper dispersion of raw materials during the production of PP plate or the vacuum forming temperature. SUMMARY

[0003] The utility model aims to provide a light luggage composite board and luggage, which aims to solve the problems of heavy weight of traditional luggage and difficulty in using vacuum forming to process and form PP plate.

[0004] To solve the above technical problems, the utility model aims to achieve the following:

[0005] A light luggage includes two upper and lower buckling boxes, characterized in that: the box includes a composite board, the composite board includes a PP plate body and a surface layer, the PP plate body and the surface layer have a hot melt layer, the surface layer includes any one of leather and textile fabric, the composite board is provided with a notch at the corner thereof, a plurality of mounting holes are formed in the two side edges of the notch, and the composite board on the side of each notch is bent upward at a set angle, so that the adjacent sides of the notch overlap each other and the corresponding mounting holes are aligned, forming a corner, the inner and outer shaping members clamp the corner therebetween, and the fastening member is fixedly connected to the outer shaping member after passing through the inner shaping member and the mounting hole in sequence, so as to press and position the side edges of the adjacent sides of the notch.

[0006] On the basis of the above scheme and as a preferred scheme of the above scheme: the set angle is 85-90°.

[0007] On the basis of the above scheme and as a preferred scheme of the above scheme: the corner is an arc-shaped corner; the inner and outer shaping members have arc-shaped surfaces that match the arc-shaped corner, so that the inner and outer shaping members fit the inner and outer surfaces of the arc-shaped corner.

[0008] On the basis of the above scheme and as a preferred scheme of the above scheme: a zipper is arranged on the outer edge of the box body, and the zipper comprises a U-shaped connecting part and a chain body, and the connecting part is buckled on the upper edge of the box body.

[0009] On the basis of the above scheme and as a preferred scheme of the above scheme: the connecting part is sewn or glued to the upper edge of the box body.

[0010] The utility model discloses a box body and a manufacturing method thereof, and has the following beneficial effects: the surface layer and the PP plate body are connected by the adhesive property of the hot melt material in the hot melt state, which is more environmentally friendly and cost-saving than the traditional way of using adhesive to connect the surface layer and the PP plate body; the cutting gap and the bending are used to form the corner, and the inner and outer shaping members are used to shape and fix the corner, so that the box body is obtained; in addition, the surface layer does not need to have large tensile property and ductility, so that the leather, synthetic leather and fabric can be used as the surface layer, the appearance types of the luggage are expanded, and the product competitiveness is improved. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is the whole structure schematic diagram of the utility model;

[0012] Figure 2 It is the schematic diagram of plate structure;

[0013] Figure 3 It is the schematic diagram of box body bending forming state;

[0014] Figure 4 It is the schematic diagram of bottom trundle connection state;

[0015] Figure 5 It is the schematic diagram of zipper assembly state;

[0016] Figure 6 It is the schematic diagram of bag corner assembly state;

[0017] Figure 7 It is the schematic diagram of zipper and inner lining assembly structure. DETAILED DESCRIPTION

[0018] In order to make the objects, technical solutions and advantages of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments with reference to the drawings in the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all embodiments. Based on the embodiments given, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0019] In the description of the present application, it should be understood that the terms "upper", "lower" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0020] In the description of the present application, the terms "first", "second", and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Embodiments

[0021] In detail Figure 1 As shown in the drawings, the present application discloses a light luggage composite board, comprising a PP plate body and a surface layer; the PP plate body and the surface layer have a hot melt layer; that is, the PP plate body 11 is obtained by a molding process in the prior art such as an extrusion process or a blow molding process. After molding, the surface temperature of the plate body is relatively high, and at this time the material of a certain depth on the surface of the plate body has not cooled and hardened (i.e. the hot melt layer 12), that is, it is still in a hot melt state. At this time, the material in the hot melt state on the surface will have adhesive properties. At this time, the surface layer 13 is attached to the hot melt layer 12, and with the cooling of the entire plate body and the hot melt layer 12, the surface layer 13 and the PP plate body 11 are compounded to form a whole. In this process, the surface layer 13 and the hot melt layer 12 do not need to be bonded with an adhesive, thereby being more environmentally friendly and reducing production costs. Of course, the surface of the finished PP plate body 11 can also be heated to obtain a hot melt layer 12 of a certain depth on the surface. After the surface layer 13 is attached to the hot melt layer 12, the two can also be compounded to obtain a composite board. It should be noted that the surface layer includes any of leather, textile fabric; the leather includes real leather, artificial leather and synthetic leather, such as PVC leather and PU leather.

[0022] In addition, it should be noted that the PP melting point range is 155-165°C, although its melting point is 155-165°C, but in actual production process, the PP plate body 11 is obtained by the existing molding process such as extrusion process, blow molding process, and the surface temperature of the plate body is high, at this time the plate body surface still has a certain depth of material that has not been cooled and hardened (i.e. hot melt layer 12), then the surface layer is attached to the surface of the hot melt layer 12 for compounding, and then the cooling means is used to cool the PP plate body and the surface layer at the same time, so that the temperature of the surface layer is definitely within the temperature range that the corresponding material can withstand; in addition, for the way of heating the surface of the PP plate to melt a certain depth of PP plate for surface layer compounding, the actual heat is less, and the thickness of the hot melt layer is shallow, so during the compounding process, the temperature of the surface layer will rise to a certain extent, but it is lower than the temperature that the surface layer can withstand. Therefore, according to the specific surface layer material, effectively control the compounding process and the temperature after compounding (cooling), and the surface layer will not be damaged by high temperature. Embodiment

[0023] In addition, a luggage using the lightweight luggage composite panel in embodiment one is also disclosed. See Figures 2-7 As shown in the figure, the composite panel 10 is cut according to the shape in the figure, which specifically includes cutting the first notch 20 symmetrically at the two corners of the upper end 10a (facing Figure 2 the drawing, the upper part is the upper end, and the lower part is the lower end) of the composite panel 10, and punching a plurality of first mounting holes 203 near the position close to the first notch 20; the second notch 30 is cut symmetrically at the two corners of the lower end 10b of the composite panel 10, and a plurality of second mounting holes 303 are punched near the position close to the second notch 30; thereby obtaining the symmetrical wing part 10c. According to Figure 3 As shown in the structure, the upper end 10a and the wing part 10c of the composite panel 10 are bent inward by about 90°, and the first edge 201 and the second edge 202 of the first notch 20 are close to each other and overlap, the upper mounting hole group 203a and the lower mounting hole group 203b holes above the first notch 20 are aligned, at this time the first notch 20 position forms a raised arc corner, and the like Figure 6The outer corner 80 (outer shaping part) is fitted onto the outside of the arc-shaped corner. Fasteners 60 (including necessary plastic washers and screws) are passed through the aligned upper mounting hole group 203a and lower mounting hole group 203b near the edge of the arc-shaped corner and tightened into the threaded hole of the outer corner 80, achieving initial positioning of the arc-shaped corner. Subsequently, the first inner corner 40 (inner shaping part) is fitted onto the inner surface of the arc-shaped corner. Upper fasteners 401 are then passed through the aligned upper mounting hole group 203a and lower mounting hole group 203b near the lower edge of the arc-shaped corner and tightened into the threaded hole of the outer corner 80, thereby pressing and positioning the first side 201 and the second side 202 of the first notch 20, thus forming an arc-shaped corner. Similarly, the arc-shaped corner on the other symmetrical side is fixed and formed. Next, bend the lower end 10b of the composite board 10 inward at approximately 90°. Similarly, adjust the first side 301 and the second side 302 of the second notch 30 to bring them closer together and overlap them. Align the upper mounting hole group 303a above the first notch 30 and the lower mounting hole group 303b below the first notch 30, thereby forming an arc-shaped corner below. Then, install the caster assembly 70 (see...) Figure 4 As shown, the second inner corner 50 is attached to the outer surface of the curved corner. Similarly, fastener 60 is used to form the lower curved corner. After passing through the upper mounting hole group 303a and lower mounting hole group 303b that are aligned near the edge of the curved corner, it is screwed into the threaded hole of the outer corner 80 to achieve the initial positioning of the curved corner. Then, the second inner corner 50 is attached to the inner surface of the curved corner. The lower fastener 501 is then passed through the upper mounting hole group 303a and lower mounting hole group 303b that are aligned near the lower edge of the curved corner and screwed into the threaded hole of the outer corner 80, thereby pressing and positioning the first side 301 and the second side 302 of the second notch 30 to achieve the formation of a curved corner. Similarly, the caster assembly on the other side and the curved corner can be formed. It should be noted that the outer corner 80, the first inner corner 40, the second inner corner 50 (inner shaping parts), and the caster assembly 70 (outer shaping parts) all have arc-shaped surfaces that fit into the corresponding arc-shaped corners. Therefore, during installation and fastening, in addition to achieving positioning, the arc-shaped corners can be plasticized and shaped through the compression of the arc-shaped surfaces, thereby improving the consistency of the arc-shaped corners in the same batch of bags, and also improving the uniformity and smoothness of the arc-shaped corner transition after molding. Of course, the outer corner 80 and the caster assembly 70 also cover the overlapping area of ​​the first notch 20 and the second corner 30, thereby improving the aesthetics and consistency of the bags.

[0024] The forming principle of the half box body is described above, and the other half box body can be formed by the above method. For the luggage, the two half box bodies need to be connected by the zipper 90. In the embodiment, the zipper 90 includes a U-shaped connecting part 901 and a chain body 902, the connecting part 901 is buckled at the upper edge of the box body, and is fixedly connected with the upper edge of the box body by sewing or gluing, Figure 7 The structure of the sewing connection is shown in the figure, the sewing line 100 sews the connecting part 901 and the box body, so as to realize the installation and connection of the zipper. In addition, due to the existence of the first inner corner 40, the second inner corner 50 and the fastener in the box body, the inside of the box body will be relatively messy. Therefore, the luggage also includes an inner lining 110, the edge of which is pressed between the connecting part 901 and the upper edge of the box body, so that the inner lining 110 and the box body are fixedly connected when sewing, realizing the assembly of the inner lining. Due to the existence of the inner lining, the first inner corner 40, the second inner corner 50 and the fastener can be hidden, so as to improve the appearance of the luggage and improve the quality of the luggage. It should be noted that the first inner corner 40, the second inner corner 50, the outer corner 80 and the caster assembly 70 (including the caster 71) are obtained by injection molding according to the size of the specific luggage and the radian or round corner of the arc-shaped corner.

[0025] Therefore, the composite board does not have the tensile property and ductility required for plastic suction forming. In the embodiment, the luggage is obtained by bending and positioning forming without plastic suction forming. The obtained luggage has a real wooden appearance, so as to improve the novelty of the product and the product competitiveness in the case of the homogenization of traditional luggage appearance categories, and meet the needs of more consumers for differentiated luggage.

[0026] The above embodiment is only a preferred embodiment of the present application, and does not limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A lightweight luggage case comprising two upper and lower opposing cases, characterised in that: The box comprises a composite board, which comprises a PP plate body and a surface layer; the PP plate body and the surface layer have a hot melt layer therebetween; the surface layer comprises any one of leather and textile fabric; the composite board is provided with a notch at its corner, and the two side edges of the notch are provided with a plurality of mounting holes; further comprising an inner shaping piece and an outer shaping piece; the composite board on each side of the notch is bent upward by a set angle, so that the adjacent sides of the notch overlap each other and the corresponding mounting holes are aligned, forming a corner; the inner shaping piece and the outer shaping piece clamp the corner therebetween, and a fastener is sequentially fixedly connected in the outer shaping piece through the inner shaping piece and the mounting hole, so as to press and position the side edges of the adjacent sides of the notch which overlap each other.

2. A light weight luggage according to claim 1, characterized in that: The set angle is 85-90°.

3. A light weight luggage according to claim 2, characterized in that: The corner is an arc-shaped corner; the inner shaping piece and the outer shaping piece have arc-shaped surfaces matched with the arc-shaped corner, so that the inner shaping piece and the outer shaping piece are attached to the inner and outer surfaces of the arc-shaped corner.

4. A light weight luggage according to claim 1, characterized in that: A zipper is arranged on the outer edge of the box, which comprises a U-shaped connecting part and a chain body, and the connecting part is buckled on the upper edge of the box.

5. A light weight luggage according to claim 4, characterized in that: The connecting part is sewn or glued with the upper edge of the box.

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