KR20110012565A - Assembly type case having circular section and using method thereof - Google Patents

Abstract

PURPOSE: A prefabricated case with a circular section and the use thereof are provided to ensure simple assembly of inner and outer cases and easy insertion of an article because the notch grooves are opened or restored along with the cut parts. CONSTITUTION: A prefabricated case with a circular section comprises inner and outer cases(10,20) which have cut parts(10a,20a), respectively. Each cut part is formed lengthwise so as to pass through the inner and outer peripheries. The first cut part is elastically opened to receive an object(M) in the inner case, and the second cut part is elastically opened to assemble the outer case to the inner case. First and second notch grooves(10b,20b) are formed lengthwise on the other sides of inner and outer cases.

Description

Assembly type case having circular section and using method

The present invention relates to a prefabricated case, and in particular, consisting of a pair of case parts having a circular cross section, such as a pipe or tube for transporting fluid or the like inside, or a circular shape including a container or a housing for accommodating various articles, etc. A prefabricated case of a cross section and a method of using the same.

As used herein, the term 'case' is defined as a term including a container such as a pipe or a tube formed such that a fluid or the like is conveyed therein and a container such as a container or a housing used for storing, containing or protecting various articles. do.

The case is variously embodied in a polygonal structure such as a cross section or a square, and a single body forms a complete case, while a pair of case parts composed of an inner case and an outer case are assembled together to form a complete case. Some form. Among these, the present invention relates to a prefabricated case having a circular cross section in which a pair of case parts having a circular cross section are assembled with each other to form a complete case.

Representatives for the prefabricated case of a circular cross section known in the art are illustrated as corrugated pipes in the accompanying drawings, FIGS. 1 and 2 and FIGS. 3A-3C. The prefabricated case illustrated is divided into an inner case 1 and an outer case 2 formed of a flexible plastic material to form a male and female pair. In particular, a narrow first cutout portion 1a is formed on one side of the circumferential surface of the inner case 1 along a length (or height) direction, and an arc shape is formed on the opposite circumferential surface of the first cutout portion 1a. The protrusion 1b of is formed. In addition, a wide second cutout 2a is formed on the circumferential surface of the outer case 2 along the length (or height) direction, and the second cutout 2a is formed of the protrusion 1b. It is formed in the same width as the width. The pair of male and female prefabricated cases are assembled while the outer case 2 is overlaid on the outer circumferential surface of the inner case 1 in a state where the accommodation object M is accommodated inside the inner case 1 as shown in FIG. 1. This results in one complete case as in FIG. 2. That is, referring again to FIGS. 3A to 3C, as shown in FIG. 3A, the first cutout 1a of the inner case 1 is opened to the inside of the inner case 1 by spreading it beyond the diameter of the receiving object M. FIG. After the receiving object M is inserted, the second cutout 2a of the outer case 2 is pushed in a state in which it faces the first cutout 1a of the inner case 1 as shown in FIG. 3B. Then, as the second cutout 2a of the outer case 2 opens, the outer case 2 is overlaid on the outer circumferential surface of the first partial body 1 to complete the assembly as shown in FIG. 3C. At this time, both ends of the second cutout 2a of the outer case 2 abut on both ends of the arc of the protrusion 1b formed on the outer circumferential surface of the inner case 1 opposite to the first cutout 1a. In this way, the second cutout portion 2a of the outer case 2 abuts on both ends of the arc of the protrusion 1b is fused or bonded in the state where the assembly is completed.

However, such a conventional prefabricated case has the following problems. First, in order to insert the accommodation object M into the inner case 1, since the first cutout 1a of the inner case 1 must be opened beyond the diameter of the accommodation object M, the inner case 1 In addition to the change in diameter, deformation and buckling due to distortion occur. Second, when opening the first cutout portion 1a of the inner case 1 to the diameter of the receiving object M or more in order to accommodate the receiving object M inside the inner case 1, the first cutout portion ( Since the stress is concentrated on the opposite circumferential surface of 1a), in order to compensate for this, the protrusion 1b is formed to a predetermined thickness, and the inner case 1 is made to have a different thickness by the protrusion 1b. The material cost and the mold cost are further increased in proportion to the thickness of the protrusion 1b. Third, the adhesion of the outer case 2 to the outer circumferential surface of the inner case 1 is determined according to the width of the second cutout 2a of the outer case 2, and the wider the width of the second cutout 2a, Although the outer case 2 can be easily assembled to the inner case 1, the adhesion is inferior, and the narrower the width of the second cutout 2a, the better the adhesion but the harder the assembly becomes, so the second cutout 2a It is not easy to design an appropriate width size. Fourth, when the inner case (1) and the outer case (2) is a pipe or tube, if the rolled form is wound before assembly, the incisions (1a, 2a) are twisted, the male and female corresponding shafts are staggered during assembly Assembly will be difficult.

The present invention has been developed to improve the conventional problems as described above, to provide a prefabricated case of a circular cross-section that can easily insert the receiving object therein without causing deformation and buckling in the case. Has a main purpose.

In another aspect, the present invention is to provide a prefabricated case of a circular cross-section that can be made of the same thickness as the entire circumferential surface can reduce the material cost, and can be easily assembled.

The present invention also has another object to provide a method of using the prefabricated case as described above.

In order to achieve the above object, the present invention, the first incision is formed in the longitudinal direction penetrating the inner peripheral surface and the outer peripheral surface on one side of the circumferential inner portion to accommodate the receiving object therein while the first incision is opened elastically A circular cross section including a case and an outer case which is formed on one side of the circumferential portion and penetrates the inner circumferential surface and the outer circumferential surface in the longitudinal direction and is assembled to the outer circumferential surface of the inner case while the second incision is elastically opened. In the prefabricated case of the first case, the first notched groove is formed in the longitudinal direction of the inner case on the inner circumferential surface or the outer circumferential surface of the other side of the inner case, the inner circumferential surface or the outer circumferential surface of the other side of the outer case in the longitudinal direction of the outer case It provides a prefabricated case having a circular cross section, characterized in that the second notch groove is formed. Particularly, the first notch groove is formed at a portion symmetrical to the first cutout with respect to the center point of the circumference of the inner case, and the second notch groove is formed on the center point of the circumference of the outer case. It may be formed at a site symmetric to the incision. In addition, a plurality of first notch grooves and a plurality of second notch grooves may be formed.

On the other hand, in the present invention, the inner case and the outer case of the circular cross-section, respectively, extrusion molding, the first cut portion penetrating the inner peripheral surface and the outer peripheral surface on one side of the circumference of the inner case is formed in the longitudinal direction and the other side of the circumference of the inner case The first notch groove is formed in the longitudinal direction of the inner circumferential surface of the outer case, and the second cut-out portion penetrating the inner circumferential surface and the outer circumferential surface is formed at one side of the circumferential portion of the outer case in the longitudinal direction, and in the longitudinal direction at the inner circumferential surface of the other circumferential portion of the outer case. Extrusion molding to form a second notch groove, elastically opening the first cutout portion of the inner case, inserting an accommodation object into the inner case, and elastically cutting the second cutout portion of the outer case Assembling the outer case on the outer circumferential surface of the inner case while opening the second cutout of the outer case; Finishing the process to complete the prefabricated case of the circular cross-section, and provides a method of using the prefabricated case of the circular cross-section consisting of cutting and winding the completed prefabricated case to a desired length. In particular, the inner case and the outer case may be tightened so that the first cutout portion and the second cutout portion are positioned at positions not overlapping each other, and the first notch groove and the second notch groove are positioned at positions not overlapping each other. It is preferable to lip. In addition, the finishing treatment of the second cut portion may be made by any one method of heat fusion, adhesive coating, band bonding.

According to the present invention configured as described above, by being provided with a notched groove that is opened or restored with the incision, the incision is easy to open when the insertion of the receiving object or the assembly of the inner case and the outer case is easy to assemble, the inner case and There is an effect that can minimize or prevent deformation and buckling caused by the diameter change and distortion of the outer case.

In addition, according to the present invention, due to the notch groove formed in the inner case and the outer case corresponding to the incision, the incision can be opened at a sufficient angle to form a smaller width of the incision, thereby There is an effect of improving the adhesion.

 In addition, according to the present invention, since the notch grooves formed in the inner case and the outer case respectively are opened or restored together with the incision, the protrusions conventionally formed to compensate for the stress concentrated on the opposite circumferential surface of the incision are unnecessary. Both the inner case and the outer case can be manufactured with the same thickness of the circumferential surface. Therefore, the material cost and the mold cost is reduced compared to the conventional.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the following embodiments are provided to those skilled in the art to fully understand the present invention, and may be modified in various forms, and the scope of the present invention is limited to the embodiments described below. It doesn't happen.

That is, the prefabricated case having a circular cross section according to the present invention is intended to encompass all of the containers, such as pipes or tubes, or containers such as containers or housings used for storing, containing or protecting various articles. In the example, a part of the corrugated pipe is described with reference to the drawings, but the same configuration is applied to other types of pipes or receptors within the scope of the technical idea of the present invention.

Figure 4 is an exploded perspective view showing a first embodiment of the prefabricated case of the present invention, Figure 5 is a perspective view showing the assembled state of Figure 4, Figure 6 is a partial cross-sectional view and a partially enlarged view.

As shown in Figures 4 to 6, the prefabricated case of the present embodiment is composed of the inner case 10 and the outer case 20, the outer peripheral surface of the inner case 10 for receiving the receiving object (M) therein The outer case 20 is assembled to form one complete case.

The inner case 10 has a cutout portion 10a (hereinafter referred to as a “first cutout portion”) penetrating the inner circumferential surface and the outer circumferential surface at one side of the circumferential portion in the longitudinal direction of the inner case 10. The inner case 10 may be made of, for example, a flexible plastic, so that the first cutout 10a may be elastically opened and then restored. The receiving object (M) can be inserted into the inner case 10 through the cut-out portion 10a that is elastically opened. The inner peripheral surface of the inner case 10 is notched groove 10b in the longitudinal direction of the inner case 10 so as to be opened or restored together with the first cutout 10a. ) Is formed. The first needle groove 10b is formed at a portion symmetrical to the first cutout 10a based on the center point of the circumference of the inner case 10 in the present embodiment. The first notch groove 10b may have a V-shaped notch groove, a U-shaped notch groove, or other various shapes in which the first cutout 10a of the inner case 10 may be opened beyond the diameter of the receiving object M. FIG. Can be implemented.

The outer case 20 is illustrated in the same structure and form as the inner case 10. The outer case 20 has a second cutout 20a penetrating an inner circumferential surface and an outer circumferential surface on one side of the circumferential portion of the outer case 20. ) Is formed in the longitudinal direction. Like the inner case 10, the outer case 20 may be made of a flexible material such as plastic to elastically open and restore the second cutout 20a. That is, the outer case 20 may be assembled to the outer circumferential surface of the inner case 10 while elastically opening the second cutout 20a. In addition, a second notch groove 20b is formed on the other inner circumferential surface of the outer case 20 along the longitudinal direction of the outer case 20 so as to be opened or restored together with the second cutout 20a. The second notch groove 20b is also formed in a portion symmetrical to the second cutout 20a based on the center point of the circumference of the outer case 20 in this embodiment. In addition, the second notch groove 20b may be a V-shaped notch groove, a U-shaped notch groove, or other various types of which may open the second cutout 20a of the outer case 20 to the diameter of the inner case 10 or more. It may be implemented in the form.

Since the notch grooves 10b and 20b which are opened or restored together with the cutouts 10a and 20a are formed in the inner case 10 and the outer case 20 as described above, the inner case 10 and the outer case of the present invention. In the case 20, the protrusions conventionally formed to compensate for the stress concentrated on the opposite circumferential surface of the incision are unnecessary, so that the thickness of the circumferential surface is the same. In addition, due to such notched grooves 10b and 20b, the width of the first cutout 10a of the inner case 10 and the cutout width of the second cutout 20a of the outer case 20 is greater than that of the conventional cutout. Even if it is not large, it is possible not only to open the cutouts 10a and 20a at a sufficient angle, but also the adhesion of the object M to the inner circumferential surface of the inner case 10 and the outer case 20 to the outer circumferential surface of the inner case 10. ) Adhesion is improved. In addition, due to the presence of the first notch groove 10b that is opened or restored together with the first cutout 10a, the inner case 10 may be inserted to insert the receiving object M into the inner case 10. Even if the first cutout portion 10a is not easily exerted on the first cutout portion 10a, since the first cutout portion 10a is easily opened beyond the diameter of the receiving object M, the inner case 10 may be deformed due to warpage and a change in diameter. Buckling does not occur or is minimized. The same applies to the case of the outer case 20 assembled to the inner case 10.

7A to 7D are cross-sectional views illustrating the assembling process of the prefabricated case as described above.

First, the first cutout 10a of the inner case 10 as shown in FIG. 7A to insert the receiving object M having a cross-sectional diameter not larger than the inner diameter of the inner case 10 into the inner case 10. Push in toward the receiving object (M). Then, the first cutout portion 10a of the inner case 10 is elastically opened and the receiving object M is inserted into the inner case 10. In this case, the center of the circumference of the inner case 10 is referred to. Since the first notch groove 10b formed at the symmetrical portion of the first cutout 10a is opened together with the first cutout 10a, insertion is easily performed even without applying excessive force.

Next, as shown in FIG. 7B, when the inner case 10 into which the receiving object M is inserted is pushed in the state facing the second cutout 20a of the outer case 20 as shown in FIG. 7C, the outer case ( While the second cutout 20a of the 20 is elastically opened, the inner case 10 is inserted into the outer case 20, and assembly is performed as shown in FIG. 7D. At this time, the first cutout 10a and the first notch 10b of the inner case 10 do not overlap the second cutout 20a and the second notch 20b of the outer case 20, respectively. It is preferable to assemble the inner case 10 and the outer case 20 so as to lie in a non-positioned position.

8, 9, and 10 are cross-sectional views corresponding to FIG. 7C showing a second embodiment, a third embodiment, and a fourth embodiment of the prefabricated case of the present invention, respectively.

In the first embodiment described above, the first notch groove 10b and the second notch groove 20b are respectively illustrated as V-shaped notch grooves, whereas in the second embodiment shown in FIG. The first notch groove 110b is made of a U-shaped notch groove, and the second notch groove 120b of the outer case 120 also shows that it is made of a U-shaped notch groove. The rest of the configuration, including the first cutout 110a and the second cutout 120a, is the same as the first embodiment described above.

In addition, in the first and second embodiments, the notch grooves 10b, 20b, 110b, and 120b are illustrated as being formed in the inner circumferential surface of the inner case 10,110 or the outer case 20,120, but the third shown in FIG. As in the embodiment, the first notch groove 210b may be formed on the outer circumferential surface of the inner case 210, and the second notch groove 220b may be formed on the outer circumferential surface of the outer case 220. The rest of the configuration, including the first cutout 210a and the second cutout 220a, is the same as the first embodiment described above.

In addition, in the above embodiments, the notch grooves 10b, 20b, 110b, 120b, 210b, and 220b are illustrated as being formed one by one on the inner circumferential surface or the outer circumferential surface of the inner case, but the inner case as shown in the fourth embodiment shown in FIG. A plurality of first notch grooves 310b may be formed on the inner circumferential surface of the 310, and a plurality of second notch grooves 320b may also be formed on the inner circumferential surface of the outer case 320. In particular, a plurality of first notch grooves 310b may be formed by concentrating on the symmetrical portions of the first cutouts 310a with respect to the center point of the circumference of the inner case 310 as shown in FIG. 10. A plurality may be formed by dispersing in the site. Similarly, a plurality of second notch grooves 320b may be formed by concentrating on the symmetrical portions of the second cutouts 320a with respect to the center of the circumference of the outer case 320 as shown in FIG. 10. A plurality may be formed by dispersing in the site. In addition, in the fourth embodiment of FIG. 10, the plurality of notch grooves 310b and 320b are illustrated as being formed on the inner circumferential surface of the inner case 310 or the outer case 320, but the inner case 310 or the outer case 320 is illustrated. It may be formed on the outer peripheral surface of the).

Figure 11 illustrates a method of use including a fabrication process for the prefabricated case of the present invention as described above, the prefabricated case of the first embodiment as an example will be described for each process as follows.

First, a raw material such as plastic is introduced into an extrusion molding machine, and then extrusion molded into an inner case 10 and an outer case 20 each having a circular cross section, and then cooled. In particular, in the extrusion process, the first cutout portion 10a penetrating the inner circumferential surface and the outer circumferential surface on one side of the circumferential portion of the inner case 10 is formed in the longitudinal direction, and the length is formed on the inner circumferential surface of the other circumferential portion of the inner case 10. The first notch groove 10b is formed in the direction. Similarly, a second cutout 20a penetrating the inner circumferential surface and the outer circumferential surface on one side of the circumferential portion of the outer case 20 is formed in the longitudinal direction, and the second circumferential surface of the outer case 20 on the inner circumferential surface of the other circumferential portion of the outer case 20 is formed in the second direction. The notch groove 20b is formed.

Using the inner case 10 and the outer case 20 formed as described above constitutes a complete case into which the receiving object (M) is inserted. First, the receiving object in the first cutout (10a) of the inner case (10) The object M is inserted into the inner case 10 while elastically opening the first cutout 10a by pushing (M) together. In addition, the inner case 10 is pushed against the second cutout 20a of the outer case 2 so that the inner case 10 elastically opens the second cutout 20a of the outer case 20. The outer case 20 is assembled to the outer circumferential surface of the inner case 10 by being fitted to the inner circumferential surface of the outer case 20.

Thereafter, the second cutout 20a of the outer case 20 is finished, for example, by bonding both ends of the second cutout 20a by heat fusion or adhesive application, or detaching as necessary. By coupling the ring-shaped band to the outer circumferential surface of the outer case 20 to enable this, the outer case 20 to maintain a solid assembly state on the outer circumferential surface of the inner case 10.

Finally, the prefabricated case completed as described above is cut and wound to the required length.

In the above described the present invention based on the preferred embodiment, the present invention is not limited to the above embodiment, various modifications by those skilled in the art within the scope of the technical idea of the present invention This is possible.

1 is an exploded perspective view illustrating a prefabricated case having a conventional circular cross section.

2 is a perspective view showing the assembled state of FIG.

3A to 3C are cross-sectional views illustrating an assembly process of the prefabricated case of FIG. 1.

Figure 4 is an exploded perspective view showing a first embodiment of the prefabricated case of the present invention.

5 is a perspective view illustrating the assembled state of FIG. 4.

6 is a partial cross-sectional view and a partially enlarged view of the prefabricated case of FIG. 5.

7A to 7D are cross-sectional views illustrating an assembly process of the prefabricated case of FIG. 4.

8 is a cross-sectional view corresponding to FIG. 7C showing a second embodiment of the assembled case of the present invention.

9 is a cross-sectional view corresponding to FIG. 7C showing a third embodiment of the assembled case of the present invention.

FIG. 10 is a sectional view corresponding to FIG. 7C showing a fourth embodiment of the assembled case of the present invention. FIG.

11 is a flowchart illustrating a method of using a prefabricated case according to the present invention.

<Explanation of symbols for the main parts of the drawings>

10,110,210,310: Inner Case

10a, 110a, 210a, 310a: first incision

10b, 110b, 210b, 310b: first notch groove

20,120,220,320: Outer Case

20a, 120a, 220a, 320a: second incision

20b, 120b, 220b, 320b: second notch groove

M: object

Claims (7)

An inner case in which the first incision penetrating the inner circumferential surface and the outer circumferential surface is formed in a longitudinal direction on one side of the circumferential portion, and the first incision is elastically opened to accommodate the object to be accommodated therein; In the prefabricated case of a circular cross section comprising an outer case which is formed in the longitudinal direction of the second incision penetrating through the second incision is elastically opened and assembled to the outer peripheral surface of the inner case, A first notch groove is formed in the inner circumferential surface of the inner circumference of the inner case in the longitudinal direction of the inner case, and a second notch groove is formed in the longitudinal direction of the outer case in the inner circumferential surface of the outer circumference of the outer case Prefabricated case with a circular cross section. An inner case in which the first incision penetrating the inner circumferential surface and the outer circumferential surface is formed in a longitudinal direction on one side of the circumferential portion, and the first incision is elastically opened to accommodate the object to be received therein; and the inner circumferential surface and the outer circumferential surface on one side of the circumferential portion In the prefabricated case of a circular cross section comprising an outer case which is formed in the longitudinal direction of the second incision penetrating through the second incision is elastically opened and assembled to the outer peripheral surface of the inner case, A first notch groove is formed in the outer circumferential surface of the inner circumference of the inner case in the longitudinal direction of the inner case, and a second notch groove is formed in the outer circumferential surface of the outer circumference of the outer case in the longitudinal direction of the outer case Prefabricated case with a circular cross section. The method according to claim 1 or 2, The first notch groove is formed at a portion symmetrical to the first cutout with respect to the center point of the circumference of the inner case, and the second notch groove is formed with respect to the center point of the circumference of the outer case. Prefabricated case of a circular cross section, characterized in that formed on the site symmetrical to. The method according to claim 1 or 2, Prefabricated case having a circular cross-section, characterized in that the plurality of first notch groove and the second notch groove is formed. The inner case and the outer case of the circular cross section are respectively extruded, and a first cutout portion penetrating the inner circumferential surface and the outer circumferential surface on one side of the circumferential portion of the inner case is formed in the longitudinal direction and in the longitudinal direction on the inner circumferential surface of the other circumferential portion of the inner case. A first notch groove is formed, and a second cutout portion penetrating the inner circumference and the outer circumferential surface is formed at one side of the circumferential portion of the outer case in the longitudinal direction, and a second notch groove is formed at the inner circumferential surface of the other circumference of the outer case in the longitudinal direction. Extrusion molding if possible; Inserting a receiving object into the inner case while elastically opening the first cutout of the inner case; Assembling the outer case on the outer circumferential surface of the inner case while elastically spreading the second cutout of the outer case; Finishing the prefabricated case having a circular cross section by finishing the second incision of the outer case; Method of using a prefabricated case of a circular cross-section comprising the process of cutting and winding the completed prefabricated case to a desired length. The method of claim 5, Assembling the inner case and the outer case so that the first cutout and the second cutout are in a position not overlapping each other and the first notch groove and the second notch groove are in a position not overlapping each other. Method of using a prefabricated case of a circular cross section characterized in. The method of claim 5, Finishing of the second incision is a method of using a prefabricated case of a circular cross section, characterized in that made by any one of heat welding, adhesive application, band bonding.

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