CN101785598A

CN101785598A - Suitcase and method for making a suitcase frame

Info

Publication number: CN101785598A
Application number: CN200910173243A
Authority: CN
Inventors: 恩里科·龙卡托
Original assignee: Valigeria Roncato SpA
Current assignee: Valigeria Roncato SpA
Priority date: 2008-09-09
Filing date: 2009-09-09
Publication date: 2010-07-28
Also published as: IT1391577B1; EP2160953A1; EP2160953B1; ATE533374T1; ITMI20081612A1

Abstract

The present invention relates to a suitcase (1) comprising a first shell (4) and a second shell (5) articulated to each other, at least one frame fixedly connected to the first and second shell (4, 5), in which the frame, formed by injection molding has an overall structural strength which is higher than the prior art frames.

Description

The method of a kind of suitcase and manufacturing suitcase framework

Technical field

The present invention relates to the method for a kind of suitcase and manufacturing suitcase framework.

Background technology

The suitcase of placing clothes and/or personal belongings is known in the field.For example applicant's European patent EP 1867246 discloses a kind of suitcase, and it comprises two hinged frameworks, thereby and has at these two frameworks and to connect the corresponding housing that defines the internal capacity of suitcase on it.

Have the hard framework of constant cross section, all adopt extrusion modling to make basically.Yet injection molding manufacture method then can be produced this lower series products of cost.

The framework that but any injection moulding makes will inevitably lack uniformity completely, and this is reflected as fault of construction (structural weaknesses) on final products.This fault of construction can only be improved by the size that increases framework self, but does the weight that can increase framework simultaneously like this.

In view of above-mentioned prior art, the object of the present invention is to provide a kind of suitcase, it has hard framework and can not be subjected to lacking uniformity and need increasing the influence of frame weight because of injection moulding causes, thereby reaches the purpose that alleviates the suitcase own wt.

Summary of the invention

The objective of the invention is that a suitcase and/or a kind of method of making the suitcase framework realize by constructing.Second housing that described suitcase comprises first housing that fuses with first framework, fuses with second framework, described first and second frameworks are hinged, have at least one to adopt injection moulding in wherein said first framework and second framework, and comprise a plurality of injection points that are equally spaced basically.。

In the method for this manufacturing suitcase framework, described suitcase comprises first housing that fuses with first framework and second housing that fuses with second framework, described first and second frameworks are hinged, have at least one to be that employing is injection molding in wherein said first framework and second framework, comprise a plurality of injection points that are equally spaced basically, described method comprises the injection molding step of framework that has a plurality of injection points with described, and wherein said a plurality of injection points are equally spaced according to the contour shape of described framework.

Description of drawings

Be described further below in conjunction with accompanying drawing and preferred embodiment character of innovation and advantage suitcase of the present invention, these preferred embodiments be used for explanation rather than be used to limit of the present invention, in the accompanying drawing:

Fig. 1 is the exploded perspective view of suitcase of the present invention;

Fig. 2 is the framework of suitcase shown in Figure 1 and the perspective view of running channel (injection duct) thereof;

Fig. 3 is the schematic diagram according to the set running channel position of suitcase framework shown in Figure 1.

The specific embodiment

Describe with reference to the accompanying drawings, suitcase 1 comprises upper frame 2 and underframe 3, and the two is fixedly mounted on upper shell 4 and the lower house 5 separately.

This to upper frame 2 and underframe 3 the two one of be described, this means that in a preferred embodiment, the

framework

2 and 3 of suitcase 1 all has all following features.

As can be seen from Figures 2 and 3, framework 2 contains a plurality of angular regions (corner area) 6, has 4 in the present embodiment.

Two continuous angular regions 6 define a limit 7 of suitcase 1.In other words, each angular region 6 all is a frame part, and the radius of curvature ratio of described frame part is the radius of curvature much smaller (it is absolute straight that described adjacent limit needs not be) of adjacent side with it.

Framework 2 comprises a roughly base of U-shaped (invisible in the accompanying drawings), and the edge 8 of housing 4 is bonded on the described base.Described base comprises that also a plurality of guide edges 8 that are used for insert in the base voluntarily, guarantees that the edge 8 and the wall of base keep the parts of certain distance simultaneously again.

Referring to figs. 2 and 3 as can be known, framework 2 comprises a lot of injection points 9, and they are easy to find on framework, and this is because injection point all can stay typical ring shape vestige on the framework surface usually.

Injection point 9 roughly equidistantly distributes along the girth of framework, and like this, when shaping frame 2, all flow fronts from the molten polymer material that injection point is injected into are to converge to together simultaneously basically.The mechanical performance of Zhi Bei the part of framework 2 between two injection points 9 homogeneous as much as possible in this way.

Similar with injection point, the intersection in different polymeric material forward positions also is visible on final products, and is because the latter is contained a line that color is slightly different, corresponding with the meld line in described each forward position.

Preferably, have at least a part of injection point 9 to be positioned at around the angular region 6, so that the described angular region 6 that is easy to influenced by mechanical stress is made by the material with best mechanical performance, preferably all angular regions 6 all have or close injection point 9.

Obviously, because the size of angular region 6 depends on its radius of curvature, therefore " be positioned at around the angular region 6 " and be construed as the situation that also comprises injection point 96 the insides in the angular region.

Suitcase 1 shown in the drawings comprises that one is tetragonal framework 2 substantially, and described framework 2 has four angular regions 6, and these four angular regions 6 are by per two qualifications in four limits 7 of framework 2.

As shown in Figure 3, consider two continuous limits 7, one of them has two injection points 9 and another side can not have.Obviously, the quadrangle form of suitcase is depended in such selection, if any two minor faces 7 and two long limits 7, but also can be other shapes.

Injection point 9 is divided into a plurality of parts (portion) 11,12,13,14 with framework 2, aligns with the limit 7 of suitcase 1 in described a plurality of parts part respectively.

Mid point in each

part

11,12,13 and 14, suitcase 1 is

baok reinforcement

15,16,17 also, and they are selected from a combination that includes luggage handle 15, luggage lock 16 and luggage hinge 17.

This

reinforcement

15,16,17 can improve the mechanical strength of the framework 2 of suitcase 1 in region, polymeric material forward position, these materials all are injection molding by two continuous syringes 18 (syringe 18 as shown in Figure 2), and merge connection in those the poorest zones of the mechanical property of materials of framework 2.

In other words, reinforcement is connected with framework 2 along fusion line 2.

Preferably align with limit 8 and be provided with the hinge 17 of suitcase herein in part 14 lucky (at least in part) wherein.

Preferably, local 11,12 and/or 13 lucky (at least in part) align with limit 7 and are provided with the handle 15 of suitcase and/or lock 16.

Preferably

reinforcement

15,16,17 all is arranged on the centre on limit 7, and just the central authorities in

part

11,12,13,14 strengthen.But, hinge 17 also can be symmetrically located at the central authorities on the limit 7 at place.

As seen from the figure, the cross section of framework 2 is consistent at injection point 9 substantially along being constant on its length direction at least.On the other hand, the cross section of described framework 2 is again different in the position near each

part

11,12,13 and 14 mid points basically.

In these, framework 2 is provided with the base 19 that is used to place

reinforcement

15,16 and 17, and the lateral dimension of base 19 is much bigger.

Therefore the recess 20 corresponding with base 19 arranged, on the housing 4 so that can be exactly and framework 2 couplings.

As shown in Figure 2, described running channel comprises main running channel 21, inferior running channel 22 and whole running channel 23, and whole running channel 23 is directly to link to each other with syringe 18.

The cross section S1 of main running channel 21 is bigger than the cross section S2 of inferior running channel 22, and the cross section S2 of inferior running channel 22 is bigger than the cross section S3 of whole running channel 23.

Preferred embodiment is S1/S2=64/49, S2/S3=49/36.

As seen from Figure 2, said syringe 18 is provided with angledly with the direction of inferior running channel 22.Also limit the described hinge 17 that has as can be seen as becoming an angle ALFA between two syringes 18 of the part 11 of reinforcement by Fig. 3, then become angle BETA between two syringes 18 in addition.

Therefore, injection point 6 is not to be symmetrically distributed with the axis at the center of passing suitcase minor face 7, but be symmetrically distributed with the axis through the center on the long limit 7 of suitcase.

For the purpose of convenient, ALFA is different with BETA, and more particularly the ALFA angle is between 15 ° and 35 °, and the BETA angle is between 10 ° and 35 °.

Framework 2 and/or housing 3 can be made by polymeric material, and thermoplastic is better; Suitable material such as PE, PP, ABS, PC, PC/ABS etc.

Preferably, polymeric material is 180 ℃ in temperature to be injected between 260 ℃ the time, preferably between 180 ℃ to 260 ℃, such as about 240 ℃.

Obviously, those skilled in the art can make multiple conversion and change to suitcase with according to above suitcase manufacture method described in the invention in order to satisfy specific and accurate needs.All these conversion and change are all within the included protection domain of the following claim of the present invention.

Claims

1. suitcase, comprise first housing (4) that fuses with first framework (2) and second housing (5) that fuses with second framework (3), described first and second frameworks (2,3) be hinged, it is characterized in that, have at least one to make and comprise a plurality of injection points that equidistantly distribute basically (9) by injection moulding in described first and second frameworks (2,3).

2. suitcase according to claim 1 is characterized in that, has at least one to have a plurality of angular regions (6) in described first and second frameworks (2,3), and has at least part injection point (9) to be positioned at around the described angular region of small part (6).

3. suitcase according to claim 1 is characterized in that, one of them of described injection point (9) is positioned near each described angular region (6).

4. suitcase according to claim 1 is characterized in that, described suitcase comprises four angular regions (6) and four different injection points (9).

5. according to claim 2 or 4 described suitcases, it is characterized in that two adjacent angular regions (6) limit a limit (7) of described suitcase (1), two continuous limits (7) comprise two described injection points (9) respectively and do not comprise described injection point (9).

6. suitcase according to claim 5, it is characterized in that, have at least a framework that first cross section of substantial constant is arranged on described injection point (9) position in the described framework (2,4) and the point midway of (11,12,13,14) has the cross section that is different from first cross section in described part.

7. suitcase according to claim 1, it is characterized in that, described injection point (9) is with described framework (2,4) at least one framework in is divided into a plurality of parts (11,12,13,14), and described framework at least one local point midway in described part (11,12,13,14) is provided with reinforcement (15,16,17).

8. suitcase according to claim 7 is characterized in that, described reinforcement (15,16,17) is selected from the combination that includes luggage handle (15), luggage lock (16) and luggage hinge (17).

9. suitcase according to claim 7, it is characterized in that at least one has first cross section of substantial constant and on the point midway of described part (11,12,13,14) cross section that is different from described first cross section is arranged in the described framework (2,3) on described injection point (9) position.

10. suitcase according to claim 1, it is characterized in that, having at least a framework to have in the framework (2,3) is the base of U-shaped substantially, have at least the edge (8) of a housing to be bonded in the base the inside in the described housing (4,5), described base comprises that the edge (8) of described at least one housing of a plurality of guiding (4,5) inserts and make the parts separately of itself and edge (8).

11. suitcase according to claim 1, it is characterized in that, described suitcase has two long limits and two minor faces (7), and the symmetry axis that described injection point (9) passes long limit (7) mid point relatively is symmetrically distributed, and the symmetry axis that passes described minor face (7) mid point relatively distribution or asymmetrical distribution then.

12. a method of making the suitcase framework is characterized in that, comprises step:

(a) with the described framework of a plurality of injection points (9) injection moulding (2,3);

Wherein, described a plurality of injection point (9) equidistantly distributes along the contour shape of described framework (2,3).

13. the method for manufacturing suitcase framework according to claim 12 is characterized in that, the injection temperature of described polymeric material is between 180 ℃ to 260 ℃.