KR102605028B1 - Cooling box with reduced weight and improved strength and insulation performance - Google Patents

Abstract

The present invention includes a body member having an accommodating space therein and having an open upper portion; A frame member provided to be coupled around the upper end of the body member; and a cover member provided to open and close the upper open portion of the body member. The object is to provide a cold storage box with improved strength and insulation performance while being lightweight.
By configuring the insulating member to form a body member directly, the cold insulating box does not include a separate body outer shell and body inner sheath, so the cold insulating box can be lighter, and the body is an insulating member equal to the thickness of the body outer shell and body inner sheath. There is an advantage that the insulation performance of the cold box can be further improved because the thickness of the member can be increased.

Description

Cooling box with improved strength and insulation performance while being lightweight {COOLING BOX WITH REDUCED WEIGHT AND IMPROVED STRENGTH AND INSULATION PERFORMANCE}

The present invention relates to a cold storage box that is lightweight and has improved strength and insulation performance.

In general, cold boxes are used to keep low-temperature items fresh, and include ice boxes and disposable EPS cold boxes. Korean Patent No. 10-2254344 (2021.05.14) discloses a type of conventional cold box. there is.

In the case of the cold storage box disclosed in Korean Patent No. 10-2254344 (2021.05.14.), it consists of a body shell forming the outer surface and a body inner skin forming the inner surface, a body member with an open upper surface, and a body member forming the upper surface. A structure consisting of a cover shell and a cover inner shell forming the lower surface, and includes a cover member provided to cover the open upper surface of the body member, with insulation materials built in between the body shell and the body inner shell and between the cover shell and the cover inner shell, respectively. It is characterized by having.

In the case of the cold storage box disclosed in Korean Patent No. 10-2254344 (2021.05.14.), the cold storage box has a structure in which insulation is built into the body shell and body inner shell, and an insulation material is built between the cover shell and the cover inner shell. Although the box has the advantage of excellent durability, the body member includes a body outer shell and a body inner shell, and the cover member includes a cover outer shell and a cover inner shell, so the weight of the cold storage box becomes heavier and the thickness of the cold storage box becomes thicker. There is a problem that the insulation performance of the cold storage box may be reduced because a relatively thin insulation material must be built in.

Korean Patent No. 10-2254344 (registered on May 14, 2021)

Accordingly, the present invention was conceived in the above-mentioned background, and its purpose is to provide a cold storage box with improved strength and insulation performance while being lightweight.

The object of the present invention is not limited here, and other objects not mentioned will be clearly understood by those skilled in the art from the description below.

In order to achieve this object, one embodiment of the present invention includes a body member formed in a form with an open top while having a receiving space therein; A frame member provided to be coupled around the upper end of the body member; and a cover member provided to open and close the upper open portion of the body member. A cold storage box is provided that is lightweight and has improved strength and insulation performance.

In addition, the frame member includes a first frame that is formed in a ring shape and is provided so that at least a portion of the circumference is in contact with an outer circumference of an upper end of the body member, and is formed in a ring shape of a shape corresponding to the first frame, Provided is a cold storage box with improved strength and insulation performance while being lightweight, comprising a second frame so that at least a portion of the circumference is in contact with the inner circumference of the upper end of the body member.

In addition, the first frame and the second frame are provided to be coupled to each other, providing a cold storage box with improved strength and insulation performance while being lightweight.

In addition, the first frame and the second frame have a coupling protrusion formed on one of the first frame and the second frame connected to a coupling groove formed on the other one of the first frame and the second frame. Provides a cold storage box with improved strength and insulation performance while being lightweight, which is characterized by being interconnected in an insertion form.

In addition, the first frame includes a first frame rib having a coupling protrusion protruding in an inner direction of the first frame along the circumference of the first frame, and the second frame includes a first frame rib of the second frame. Provided is a cold storage box with improved strength and insulation performance while being lightweight, including a second frame rib having a coupling groove recessed in the inner direction along the circumference of the second frame.

In addition, the first frame further includes a frame rib support disposed at a predetermined distance from the first frame rib in an inner direction of the first frame, and the second frame rib includes the first frame rib and the Provided is a cold storage box with improved strength and insulation performance while being lightweight, characterized in that it is disposed between frame rib supports and is provided to prevent elastic deformation by being supported by the first frame rib and the frame rib support.

In addition, the body member is provided with a first frame contact portion that protrudes from the outer periphery of the upper end of the side wall toward the outside of the body member and has a flat outer surface, and the first frame contact portion is formed in a flat shape. The frame provides a cold storage box with improved strength and insulation performance while being lightweight, characterized in that the frame is coupled to the body member in a form in which at least a portion is in contact with the first frame contact portion.

In addition, the first frame is characterized in that it is provided with an inner bending portion bent in an inner direction of the first frame at the lower end of the first frame, and the inner bending portion is provided so as to be caught at the lower end of the first frame contact portion. Provides a cold storage box with improved strength and insulation performance while being lightweight.

In addition, the body member is provided with a second frame contact portion that is formed in a recessed form from the inner circumference of the upper end of the side wall toward the outside of the body member and has a flat outer surface, and the second frame contact portion is formed in a flat shape. The frame provides a cold storage box with improved strength and insulation performance while being lightweight, characterized in that the frame is coupled to the body member in a form in which at least a portion is in contact with the second frame contact portion.

In addition, the body member is made of expanded polypropylene material, and at least a portion of the surface is glazed, providing a cold box with improved strength and insulation performance while being lightweight. do.

In addition, the body member provides a cold box with improved strength and insulation performance while being lightweight, characterized in that the inner surface forming the receiving space therein is glazed.

In addition, the cover member is made of expanded polypropylene material, and at least a portion of the surface is glazed, providing a cold box with improved strength and insulation performance while being lightweight. do.

In addition, the cover member provides a cold storage box with improved strength and insulation performance while being lightweight, characterized in that the outer front surface is glazed.

In addition, a cold storage box is provided that is lightweight and has improved strength and insulation performance, further comprising a handle member rotatably coupled to the frame member.

In addition, the handle member includes a grip portion having a certain length, a pair of bent portions formed by bending both ends of the grip portion in the same direction, and each end of the pair of bent portions facing each other. Provided is a cold storage box with improved strength and insulation performance while being lightweight, comprising a pair of rotary coupling protrusions that are extended and each of which is rotatably coupled to the body member.

According to one embodiment of the present invention, by configuring the insulating member to form a body member directly, the cold insulating box does not include a separate body outer shell and body inner shell, so the cold insulating box can be made lighter, and the body outer shell and body inner shell are not included in the cold insulating box. There is an advantage that the insulation performance of the cold box can be further improved because the thickness of the body member, which is an insulation member, can be increased by the thickness of the body inner skin.

Additionally, there is an advantage that the strength of the body member is improved by coupling the frame member around the upper end of the body member.

In addition, the frame member is composed of a first frame and a second frame, and the first frame and the second frame are configured to be combined in an undercut structure made of protrusions and grooves, so that the frame member can be easily and firmly coupled to the body member. There is an advantage.

In addition, by configuring the first frame and the second frame to be joined in an undercut structure consisting of protrusions and grooves, there are advantages of lower production costs, lower defect rate, and no restrictions on raw materials compared to the fusion method.

In addition, by constructing the cover member as a single insulating member, the cold storage box can be made lighter compared to a form including a multi-layered cover member made of a plurality of members, and since the entire cover member acts as an insulator, the cold storage box can be There is an advantage that the insulation performance can be further improved.

Figure 1 is a perspective view showing the overall configuration of a cold storage box according to an embodiment of the present invention.
Figure 2 is a perspective view showing the overall configuration of a cold storage box according to an embodiment of the present invention.
Figure 3 is an exploded perspective view showing the overall configuration of a cold storage box according to an embodiment of the present invention.
Figure 4 is an exploded perspective view showing the overall configuration of a cold storage box according to an embodiment of the present invention.
Figure 5 is an exploded perspective view showing the overall configuration of a cold storage box according to an embodiment of the present invention.
Figure 6 is a perspective view showing the overall configuration of the body member of a cold storage box according to an embodiment of the present invention.
Figure 7 is a partial enlarged view of part A of Figure 6.
FIG. 8 is a diagram showing a cross section taken along line XX in FIG. 6.
Figure 9 is a perspective view showing the overall configuration of the body member of a cold storage box according to an embodiment of the present invention.
Figure 10 is a partial enlarged view of part A of Figure 9.
Figure 11 is a perspective view showing the overall configuration of the first frame of a cold storage box according to an embodiment of the present invention.
Figure 12 is a partial enlarged view of part A of Figure 11.
Figure 13 is a partial enlarged view of part A of Figure 11.
FIG. 14 is a diagram showing the XX cross section and YY cross section of FIG. 13.
Figure 15 is a perspective view showing the overall configuration of the first frame of the cold storage box according to an embodiment of the present invention.
Figure 16 is a perspective view showing the overall configuration of the second frame of the cold storage box according to an embodiment of the present invention.
Figure 17 is a partial enlarged view of part A of Figure 16.
Figure 18 is a partial enlarged view of part A of Figure 16.
FIG. 19 is a view showing the XX cross section and YY cross section of FIG. 18.
Figure 20 is a perspective view showing the overall configuration of the second frame of the cold storage box according to an embodiment of the present invention.
Figure 21 is a partial enlarged view of part A of Figure 20.
Figure 22 is a plan view showing the body member of a cold storage box according to an embodiment of the present invention.
FIG. 23 is a diagram showing the XX cross section and YY cross section of FIG. 22.
FIG. 24 is a diagram showing a cross section XX in FIG. 22.
Figure 25 is a perspective view showing the overall configuration of the cover member of a cold storage box according to an embodiment of the present invention.
Figure 26 is a perspective view showing the overall configuration of the cover member of a cold storage box according to an embodiment of the present invention.
Figure 27 is a plan view showing a cold storage box according to an embodiment of the present invention.
FIG. 28 is a diagram showing the XX cross section and YY cross section of FIG. 27.
Figure 29 is a perspective view showing a handle member mounted on a frame member according to an embodiment of the present invention.
Figure 30 is an exploded perspective view showing the overall configuration of the body member, frame member, and handle member according to an embodiment of the present invention.
Figure 31 is a partial enlarged view of part A of Figure 30.
Figure 32 is a perspective view showing the handle member according to an embodiment of the present invention rotated in the direction of the body member and mounted on the side wall of the frame member.

Hereinafter, some embodiments of the present invention will be described in detail through illustrative drawings. When adding reference numerals to components in each drawing, it should be noted that identical components are given the same reference numerals as much as possible even if they are shown in different drawings. Additionally, in describing the present invention, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present invention, the detailed description will be omitted.

Additionally, when describing the components of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are only used to distinguish the component from other components, and the nature, sequence, or order of the component is not limited by the term. When a component is described as being “connected,” “coupled,” or “connected” to another component, that component may be directly connected or connected to that other component, but there is another component between each component. It will be understood that elements may be “connected,” “combined,” or “connected.”

As shown in the drawing, the cold insulation box according to the present invention is a box container for transporting or delivering various items requiring cold insulation. The cold insulation box according to an embodiment of the present invention includes a body member 100 for accommodating the goods. It may include a frame member 200 coupled to the body member 100 and a cover member 300 that opens and closes the open portion of the body member 100.

Hereinafter, with reference to FIGS. 1 to 32, each configuration of the cold storage box according to an embodiment of the present invention will be described in detail.

First, as shown in FIGS. 3 to 5, the body member 100 may be provided in the form of a basket with the top open while forming a certain receiving space for accommodating goods therein.

More specifically, as shown in FIG. 6, the body member 100 includes a rectangular plate-shaped bottom portion 101 and a pair of long side walls that stand facing each other from the edge long sides of the bottom portion 101. And it may include a side wall portion 102 made up of a pair of short side walls that stand facing each other from the edge side of the bottom surface portion 101.

At this time, the pair of long side walls of the body member 100 may be formed in such a way that the width between the pair of long side walls gradually increases from the lower end to the upper end of the body member 100.

That is, each of the pair of long side walls of the body member 100 may be provided in a form inclined toward the outside of the body member 100.

In addition, the pair of short side walls of the body member 100 may also be formed in such a way that the width between the pair of short side walls gradually increases from the lower end to the upper end of the body member 100, and accordingly, the body member 100 ) Each of the pair of short side walls may be provided in a form inclined toward the outside of the body member 100.

Meanwhile, as shown in FIGS. 6 and 9, at both ends of the bottom surface 101 of the body member 100 in the direction of the long side, there are body members ( A pair of handle seating portions 110 recessed toward the upper portion of the bottom surface portion 101 of 100 may be formed.

As the handle seating portion 110 is formed on the bottom surface 101 of the body member 100, the handle member 400, which will be described later, is rotated inside the body member 100, as shown in FIG. 32. It is provided so that other body members 100 can be easily stacked on top of another body member 100 that is mounted on the upper end of the long side of the second frame 220.

Meanwhile, the body member 100 may be provided as a member with thermal insulation properties, and in one embodiment, may be made of expanded polypropylene (EPP) material.

At this time, the inner surfaces of the bottom surface portion 101 and the side wall portion 102 of the body member 100 may each be provided in a glazed form.

Here, glazing treatment refers to a method of applying heat to the surface of a expanded polypropylene member to melt the surface layer of the expanded polypropylene and then quickly cooling it again to create a strong protective layer on the surface layer of the expanded polypropylene member.

The cold storage box according to the present invention is not provided with separate body shell and body inner shell members, but as shown in FIG. 24, the body member 100 itself is provided as a member with thermal insulation properties and is equipped to accommodate goods therein, The inner surface of the body member 100 is glazed to improve the durability of the body member 100 and prevent contamination.

In this way, the cold storage box according to the present invention is not provided with a separate body shell and body inner shell member, but the body member 100 itself is provided as a member with heat insulation and is provided to accommodate goods therein, so that the cold storage box is not provided separately. Since the body outer shell and body inner shell are not included, the cold box can be lighter, and the insulation performance of the cold box can be further improved because the thickness of the body member, which is an insulating member, can be increased by the thickness of the body outer shell and body inner skin. There are benefits to this.

Meanwhile, as shown in FIGS. 7 and 8, a body outer support portion 211 of the first frame 210 of the frame member 200, which will be described later, is provided on the outer side of the upper end of the side wall portion of the body member 100 so as to come into contact with it. One frame contact portion 121 may be provided.

More specifically, the first frame contact portion 121 is provided along the outer circumference of the upper end of the side wall of the body member 100, and may be formed to protrude by a certain thickness from the outer surface of the upper end of the side wall of the body member 100. , Additionally, the first frame contact portion 121 may have a flat outer surface so as to contact the inner surface of the body outer support portion 211 of the first frame 210.

Here, the lower end of the first frame contact portion 121 may be provided with a first frame locking groove portion 122 into which the locking protrusion 217 of the first frame 210 as shown in FIG. 14 is inserted. The first frame locking groove portion 122 may be formed to be recessed to a certain depth toward the inside of the first frame contact portion 121.

Next, a second frame contact portion 131 may be provided inside the upper end of the side wall portion of the body member 100 so that the body inner support portion 221 of the second frame 220 of the frame member 200 comes into contact with it.

More specifically, the second frame contact portion 131 is provided along the inner circumference of the upper end of the side wall of the body member 100, and is recessed from the inner surface of the upper end of the side wall of the body member 100 toward the outside of the body member 100. It may be formed in a stepped form, and the second frame contact portion 131 may have an outer surface formed in a flat shape so as to be in contact with the inner surface of the body inner support portion 221 of the second frame 220. there is.

Here, the upper end of the second frame contact portion 131 may be provided with a second frame support portion 132 that supports the lower outer bent portion 222 of the second frame 220 as shown in FIG. 19. The second frame support portion 132 may be formed in a flat shape in the horizontal direction.

Meanwhile, as shown in FIG. 7, at the upper end of the side wall portion of the body member 100, there is a reinforcement insertion groove 140 into which the rib reinforcement 228 of the second frame 220 as shown in FIG. 21 is inserted. This can be provided.

Next, as shown in FIGS. 3 and 4, the frame member 200 is coupled around the upper end of the body member 100 described above to reinforce the strength of the body member 100.

Here, the frame member 200 according to an embodiment of the present invention may include a first frame 210 and a second frame 220.

First, as shown in FIG. 11, the first frame 210 is formed in a square ring shape consisting of a pair of long sides 201a and a pair of short sides 201b, and at least a portion of the circumference is formed by a body member ( 100) is provided to contact the outer circumference of the upper end.

In more detail, as shown in FIGS. 12 to 14, the first frame 210 is formed in a square ring shape consisting of a pair of long sides 201a and a pair of short sides 201b, each A pair of long sides 201a and a pair of short sides 201b include a body outer support portion 211 arranged in a form extending in the vertical direction with a constant height, and a body outer support portion 211 at the upper end of the body outer support portion 211. An outer bent portion 212 that is bent and extended in the outer direction of the outer support portion 211, and a first frame rib 213 that is bent and extended in the upper direction of the body outer support portion 211 from the end of the outer bent portion 212. ) may include.

In addition, the pair of long sides 201a and the pair of short sides 201b of the first frame 210 are internally bent and extended from the lower end of the body outer support 211 toward the body member 100. It may further include a portion 216 and a stopping protrusion 217 that is bent and extended from an end of the inner bent portion 216 toward the upper side of the body outer support portion 211.

The first frame 210 provided in this form is a first frame in which the inner surface of the body outer support 211 is provided along the outer circumference of the upper end of the side wall portion of the body member 100, as shown in FIG. 23. It can be coupled to the outer circumference of the upper end of the body member 100 in a form that abuts the contact portion 121.

Here, as described above, the pair of long side walls of the body member 100 are formed in such a way that the width between the pair of long side walls gradually increases from the lower end to the upper end of the body member 100, and the body member 100 The pair of short side walls of the member 100 may also be formed in such a way that the width between the pair of short side walls gradually increases from the lower end to the upper end of the body member 100. Accordingly, the first frame 210 The first frame 210 may be coupled to the outer circumference of the body member 100 by passing it from the lower end to the upper end of the body member 100.

Here, as shown in FIG. 23, a pair of long sides 201a and a pair of short sides 201b of the first frame 210 are connected to the body member 100 at the lower end of the body outer support 211. The first frame 210 is formed by an inner bent portion 216 that is bent and extended in the direction and a stopping protrusion 217 that is bent and extended from the end of the inner bent portion 216 in the upper direction of the body outer support portion 211. is provided so as to be engaged with the outer circumference of the upper end of the body member 100.

That is, the inner bent portion 216 of the first frame 210 is provided along the outer circumference of the upper end of the side wall of the body member 100, and has a certain thickness from the outer surface of the upper end of the side wall of the body member 100. The locking protrusion 217 provided at the end of the inner bent portion 216 of the first frame 210 is caught on the lower end of the first frame contact portion 121, which is formed in a protruding shape as much as the first frame contact portion 121. The first frame 210 may be inserted into the first frame locking groove 122, which is formed to be recessed to a certain depth in the inner direction, and can be hooked to the outer periphery of the upper end of the body member 100. there is.

By configuring in this way, the first frame 210 is firmly coupled to the outer periphery of the upper end of the body member 100, thereby reinforcing the strength of the body member 100.

Subsequently, the first frame rib 213 of the first frame 210 may be provided with a coupling protrusion 213-1 protruding in the inner direction of the first frame 210, as shown in FIG. 14. In this case, A plurality of coupling protrusions 213-1 may be provided along the circumference of the first frame rib 213 and spaced apart from each other at regular intervals.

As shown in FIG. 23, the coupling protrusion 213-1 formed on the first frame rib 213 is a coupling groove 225-1 provided on the second frame rib 225 of the second frame 220, which will be described later. It is provided to be inserted into the first frame 210 and the second frame 220 by inserting the coupling protrusion 213-1 of the first frame 210 into the coupling groove 225-1 of the second frame 220. ) can be combined into an undercut structure.

At this time, as shown in FIG. 14, a downward inclined portion 213-11 is provided at the top of the coupling protrusion 213-1 so that the coupling protrusion 213-1 can be easily inserted into the coupling groove 225-1. can be formed.

Next, as shown in FIGS. 12 to 14, the first frame 210 is formed to extend from the outer bent portion 212 toward the upper side of the first frame 210, and includes a first frame rib 213, It may further include frame rib supports 214 arranged at regular intervals in the inner direction of the first frame 210.

A plurality of frame rib supports 214 may be provided along the circumference of the outer bent portion 212. In this case, as shown in FIG. 11, the frame rib supports 214 have a plurality of coupling protrusions disposed at regular intervals from each other. It may be disposed between (213-1) or may be provided to be disposed on both sides of the coupling protrusion (213-1).

In this way, by providing the frame rib support 214 in the first frame 210, it is connected to the coupling groove 225-1 of the second frame rib 225 of the second frame 220, as shown in FIG. 23. When the coupling protrusion 213-1 is inserted, the second frame rib 225 is disposed between the first frame rib 213 and the frame rib support body 214 to form the first frame rib 213 and the frame rib support body 214. ), thereby preventing elastic deformation, and thus the engaging protrusion 213-1 inserted into the engaging groove 225-1 of the second frame rib 225 is caused by elastic deformation of the second frame rib 225. It is possible to prevent separation from the coupling groove (225-1).

Meanwhile, as shown in FIG. 12, the first frame rib 213 of the first frame 210 is located at a portion opposite to the frame rib support 214 among each portion of the first frame rib 213. It may include a protruding support 215 that is formed to protrude in the direction of the rib support 214. In this case, the frame rib support 214 includes the amount of the protruding support 215 among each part of the frame rib support 214. A support bent portion 214-1 formed in a bent shape in the direction of the first frame rib 213 may be provided at a portion opposite to the end.

Here, between the frame rib support 214, which is provided with the protruding support 215 and the support bent portion 214-1 on the first frame rib 213, a second frame 220 as shown in FIG. 21 is provided. Among each part of the second frame rib 225, the part including the rib bending portion 225-3 bent toward the inside of the second frame 220 is inserted.

More specifically, the rib bent portion 225-3 of the second frame rib 225 is inserted between both ends of the protruding support 215 and the support bent portion 214-1 of the frame rib support 214. , the portion of the second frame rib 225 between the rib bent portions 225-3 is provided to be inserted and supported between the longitudinal protruding surface of the protruding support 215 and the longitudinal outer surface of the frame rib support 214. do.

By configuring it in this form, it is possible to configure the undercut structure coupling of the first frame 210 and the second frame 220 more firmly.

Subsequently, as shown in FIGS. 11 and 15, a handle portion 218 and a handle support portion 219 may be provided on the outside of each pair of short sides 201b of the first frame 210.

More specifically, the handle portion 218 is provided at the center of the outer portion of each of the pair of short sides 201b of the first frame 210, They may be formed to be recessed from the outside of each upper end in the inner and upper directions of the first frame 210, respectively.

Meanwhile, the handle support portion 219 may be provided on both sides in the longitudinal direction of the upper end of each of the pair of short sides 201b of the first frame 210, and the handle support portion 219 may be provided on one side of the first frame 210. The pair of short sides 201b may each be formed to protrude from the outside of the upper end toward the outside of the body member 100.

By providing the handle support portion 219 in this way, when the handle member 400, which will be described later, is folded in the direction of the first frame 210, as shown in FIG. 4, the handle member 400 is inside the handle member 400. It is provided to support (400).

Next, the second frame 220 is formed in the shape of a square ring consisting of a pair of long sides 202a and a pair of short sides 202b, as shown in FIG. 16, and at least a portion of the circumference is a body member. It is provided to contact the inner circumference of the upper end of (100).

In more detail, as shown in FIGS. 17 to 19, the second frame 220 is formed in a square ring shape consisting of a pair of long sides 202a and a pair of short sides 202b, each A pair of long sides 202a and a pair of short sides 202b are located at a body inner support portion 221 arranged in a form extending in the vertical direction with a constant height, and an upper end of the body inner support portion 221. A lower outer bent portion 222 that is bent and extended in the outer direction of the second frame 220, and an upper bent portion that is bent and extended in the upper direction of the second frame 220 from the end of the lower outer bent portion 222. (223), an upper outer bent portion 224 that is bent and extended from the end of the upper bent portion 223 in the outer direction of the second frame 220, and a second frame at the end of the upper outer bent portion 224. It may include a second frame rib 225 that is bent and extended in a downward direction of 220 .

The second frame 220 provided in this form is a second frame provided along the inner circumference of the upper end of the side wall portion of the body member 100 described above on the outer surface of the body inner support portion 211, as shown in FIG. 23. It can be coupled to the inner circumference of the upper end of the body member 100 in a form that abuts the contact portion 131.

Here, as described above, a second frame support portion 132 formed in a flat shape in the horizontal direction may be provided at the upper end of the second frame contact portion 131 of the body member 100, and accordingly, as shown in FIG. 23 As described above, when the second frame 220 is coupled to the inner circumference of the upper end of the side wall portion of the body member 100, the lower outer bent portion 222 of the second frame 220 contacts the second frame support portion 132. Thus, the second frame 220 as a whole is provided to be firmly supported by the second frame support portion 132.

Meanwhile, as shown in FIG. 23, a portion of the second frame support 132 is formed to protrude to be inserted between the upper bent portion 223 and the second frame rib 225 of the second frame 220. It could be.

Subsequently, the second frame rib 225 may be provided with a coupling groove 225-1 formed in a recessed shape toward the inside of the second frame 220, as shown in FIG. 19. In this case, the coupling groove ( 225-1) may be provided in plural pieces along the second frame rib 225, spaced apart from each other at regular intervals.

The coupling groove 225-1 provided in the second frame rib 225 is provided so that the coupling protrusion 213-1 provided in the first frame rib 213 of the body member 100 is inserted into the body. By inserting the coupling protrusion 213-1 of the member 100 into the coupling groove 225-1 of the second frame 220, the body member 100 and the second frame 220 can be coupled in an undercut structure. do.

Meanwhile, as shown in FIG. 23, when the coupling protrusion 213-1 of the body member 100 is inserted into the coupling groove 225-1 of the second frame 220, the second frame rib 225 is It is disposed on the inside of the first frame rib 213, and at this time, as described above, the body member 100 is formed to be spaced apart from the first frame rib 213 at a certain distance in the inner direction of the first frame 210. The frame rib support body 214 is provided, and the second frame rib 225 is disposed between the first frame rib 213 and the frame rib support body 214.

Accordingly, when the coupling protrusion 213-1 of the first frame 210 is inserted into the coupling groove 225-1 of the second frame 220, the second frame rib 225 is the first frame rib ( Since it is firmly supported by 213) and the frame rib support 214, elastic deformation is prevented, and thus the coupling protrusion 213-1 inserted into the coupling groove 225-1 causes elastic deformation of the second frame rib 225. It is possible to prevent separation from the coupling groove 225-1.

Meanwhile, as shown in FIG. 19, the lower end of the second frame rib 225 is provided with an upward inclined portion 155-11 so that the engaging protrusion 213-1 can be easily inserted into the engaging groove 225-1. can be formed.

Accordingly, in a state where the circumferences of the first frame 210 and the second frame 220 are arranged to overlap each other, when the first frame 210 and the second frame 220 are pressed, the first frame 210 The downward inclined portion 213-11 of the coupling protrusion 213-1 and the upward inclined portion 225-1 of the coupling groove 225-1 of the second frame 220 slide while facing each other, It becomes easy to insert the coupling protrusion 213-1 of the first frame 210 into the coupling groove 225-1 of the second frame 220.

Meanwhile, the second frame rib 225 of the second frame 220 may be provided with a rib bending portion 225-3 bent in the inner direction of the second frame 220, as shown in FIG. 21. .

As described above, on the first frame rib 213 of the first frame 210, a portion of each part of the first frame rib 213 that faces the frame rib support 214 is positioned in the direction of the frame rib support 214. A protruding support 215 formed in a shape that protrudes is provided, and the frame rib support 214 includes a first support body 215 at a portion of each part of the frame rib support 214 facing both ends of the protruding support 215. A support bent portion 214-1 formed in a bent shape in the direction of the frame rib 213 may be provided, where the protruding support 215 and the support bent portion 214-1 are formed on the first frame rib 213. ) Between the frame rib supports 214 provided, among each part of the second frame rib 225, a part including the rib bent portion 225-3 bent in the inner direction of the second frame 220 is inserted. It can be.

More specifically, the rib bent portion 225-3 of the second frame rib 225 is inserted between both ends of the protruding support 215 and the support bent portion 214-1 of the frame rib support 214. , the portion of the second frame rib 225 between the rib bent portions 225-3 is provided to be inserted and supported between the longitudinal protruding surface of the protruding support 215 and the longitudinal outer surface of the frame rib support 214. do.

By configuring it in this form, it is possible to configure the undercut structure coupling of the first frame 210 and the second frame 220 more firmly.

As shown in FIG. 23, the first frame 210 and the second frame 220 described above are each formed around the upper end of the side wall of the body member 100 and the second frame 220. With the circumferences of the two frames 220 placed in contact with each other, when the circumference of the lower end of the first frame 210 and the upper circumference of the second frame 220 are pressed, respectively, the first frame rib 213 and the second frame rib 213 As each of the frame ribs 225 is elastically deformed, the coupling protrusion 213-1 is inserted into the coupling groove 225-1, so that they are coupled to each other in an undercut structure.

Here, when the first frame 210 and the second frame 220 are joined by pressing the circumference of the lower end of the first frame 210 and the upper end of the second frame 220, the second frame rib 225 ), a rib reinforcement 228 may be provided between the second frame rib 225 and the upper bent portion 223, as shown in FIG. 21, to prevent the frame from being damaged by elastic deformation.

Next, as shown in FIGS. 16 and 17, both ends of a handle member 400, which will be described later, are formed to be rotatably coupled to both ends of each pair of short sides 201b of the second frame 220. A pair of handle mounting portions 226 may be provided.

Each of the pair of handle mounting portions 226 may be provided with a rotating protrusion insertion hole 226-1 recessed along the longitudinal direction on the inside, and each of the rotating protrusion insertion holes 226-1 is provided with a handle member 400. A pair of rotation coupling protrusions 450 are provided for insertion.

Next, as shown in FIG. 17, a handle member 400 rotated in the inner direction of the second frame 220 is formed on the upper part of each of the pair of long sides 202a of the second frame 220. A handle holder 227 may be provided.

The handle holder 227 may be formed at the top of each of the pair of long sides 202a of the second frame 220 in a recessed form in the downward direction of the second frame 220, as shown in FIG. 32. As shown, the handle member 400, which is rotated in the inner direction of the second frame 220 for loading the body member 100, is provided so that both ends can be seated on the handle holder 227.

Meanwhile, as the above-described frame member 200 is coupled to the outer circumference of the upper end of the body member 100, as shown in FIG. 4, the upper outer circumference of the side wall part of the body member 100 has a thickness equal to the thickness of the frame member 200. A step portion may be formed. In this way, a step is formed around the upper outer edge of the side wall portion of the body member 100, so that when a plurality of body members 100 are stacked on each other, the body member 100 loaded on top has a step. It is possible to ensure that the body member 100 loaded at the top is inserted only to a certain portion of the accommodation space of the body member 100 loaded at the bottom.

As described above, the cold storage box according to the present invention is configured to accommodate goods therein while the body member 100 itself is provided as a member with insulation properties, and a frame member 200 is formed around the upper end of the side wall of the body member 100. ) By configuring it in a form that combines, the cold insulation box does not include a separate body lining member, so the cold insulation box can be made lighter, and the strength of the body member 100 can be improved by the frame member 200, In addition, since the thickness of the body insulation can be increased by the thickness of the body lining member, there is an advantage in that the insulation performance of the cold box can be further improved.

Next, the cover member 300 is, for example, provided as a rectangular plate-shaped member whose outer circumference consists of a pair of long sides facing each other and a pair of short sides facing each other, so as to form the body member 100 described above. It is provided to open and close the upper opening portion.

Here, the cover member 300 of the cold storage box according to the present invention is made of expanded polypropylene and may be provided with the outer front surface glazed.

In this way, the cold storage box according to the present invention consists of the cover member 300 of a single heat insulating member, so that the cold storage box can be lighter than a type including a multi-layered cover member made of a plurality of members. Since the entire cover member acts as an insulator, there is an advantage that the insulating performance of the cold box can be further improved.

However, if the cover member 300 is composed of a single insulation member without a separate cover outer shell member and a cover inner shell member, the durability of the cover member 300 is reduced and the cover member 300 may be easily contaminated, so the cover member 300 may be easily contaminated. Glazing was applied to the entire outer surface of the cover member 300 to improve the durability of the cover member 300 and prevent contamination.

Meanwhile, as shown in FIGS. 26 and 28, on the upper portion of each of the pair of long sides among the outer circumference of the cover member 300, an outer extension portion is formed to extend in the outer direction of the cover member 300. (310) may be provided.

Accordingly, as shown in FIG. 28, the lower surface of the outer circumference of the cover member 300 is in contact with the lower outer bent portion 222 of the second frame 220, and the pair of long side side portions are in contact with the second frame ( 220), and the lower surface of the outer extension 310 abuts the upper outer bent portion 224 of the second frame 220 to firmly seal the upper open portion of the body member. It is provided so that

Meanwhile, as shown in FIG. 25, body stack protrusions 330 protruding in an “L” shape may be provided at each vertex of the upper surface of the cover member 300, and a body is formed on the upper surface of the cover member 300. As the stack protrusion 330 is provided, another cold storage box can be safely loaded on top of the cover member 300.

In addition, as shown in FIG. 26, each vertex of the lower surface of the cover member 300 may be provided with a stack protrusion seating groove 350 that is recessed in an “ㄱ” shape, and is located on the lower surface of the cover member 300. As the stack protrusion seating groove 350 is provided, a plurality of cover members 300 can be stacked stably.

Next, as shown in FIG. 29, the cold storage box according to the present invention may further include a handle member 400 rotatably coupled to the body member 100 described above.

More specifically, as shown in FIGS. 30 and 31, the handle member 400 includes a grip portion 310 having a constant length, and both ends of the grip portion 310 are formed by bending in the same direction. The pair of bent portions 330 and the pair of bent portions 350 are formed to extend from each end to face each other, and each of the rotating protrusion insertion holes 226- of the handle mounting portion 226 of the second frame 220 is described above. 1) may include a pair of rotational coupling protrusions 450 provided for rotational coupling.

As shown in FIG. 32, the handle member 400 rotates to the upper open portion of the body member 100 and is provided to be mounted on the handle holder 227 of the second frame 220, so that it can be mounted on the handle holder 227 of the second frame 220. It is provided so that another body member 100 can be loaded on the handle member 400 mounted on the second frame 220.

According to one embodiment of the present invention described above, the insulating member is configured to directly form the body member 100, so that a separate body shell and body inner shell are not included, so a lighter cooling box can be obtained. Since the thickness of the body member 100, which is an insulating member, can be increased by the thickness of the body shell and body inner shell, a cold box with improved insulation performance can be obtained.

In addition, by combining the frame member 200 around the upper end of the body member 100, a cold storage box with improved strength of the body member 100 while being lightweight can be obtained.

In addition, while the frame member 200 that reinforces the strength of the body member 100 is composed of the first frame 210 and the second frame 220, the first frame 210 and the second frame 220 have protrusions. And by configuring the frame member 200 to be combined with an undercut structure consisting of a groove, a cold storage box can be obtained that can easily and firmly couple the frame member 200 to the body member 100.

In addition, by configuring the first frame 210 and the second frame 220 to be joined in an undercut structure consisting of protrusions and grooves, there are no restrictions on raw materials compared to the fusion method, the production cost is low, and the defect rate is low. You can get this low cooler box.

In addition, by constructing the cover member 300 with a single insulating member, it can be made lighter compared to a form including a multi-layered cover member made of a plurality of members, and the entire cover member 300 has an insulating effect. Therefore, a cold box with improved insulation performance can be obtained.

In the above, even though all the components constituting the embodiment of the present invention have been described as being combined or operated in combination, the present invention is not necessarily limited to this embodiment. That is, as long as it is within the scope of the purpose of the present invention, all of the components may be operated by selectively combining one or more of them.

The above description is merely an illustrative explanation of the technical idea of the present invention, and various modifications and variations will be possible to those skilled in the art without departing from the essential characteristics of the present invention. Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but are for illustrative purposes, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted in accordance with the claims below, and all technical ideas within the equivalent scope should be construed as being included in the scope of rights of the present invention.

100: body member
101: bottom surface
102: side wall part
110: A pair of handle seating parts
121: first frame contact part
122: 1st frame locking groove
131: Second frame contact part
132: second frame support
140: Reinforcement insertion groove
200: frame member
210: 1st frame
201a: A pair of long sides
201b: A pair of unilateral sides
211: Body outer support
212: outer bend
213: 1st frame rib
213-1: Combination protrusion
213-11: Downward slope
214: frame rib support
214-1: Support bending part
215: protruding supporter
216: medial bend
217: Stumbling protrusion
218: handle part
219: handle support
220: 2nd frame
202a: A pair of long sides
202b: A pair of unilateral sides
221: Body inner support
222: Bottom outer bend
223: upward bending part
224: Upper outer bend
225: 2nd frame rib
225-1: Combination groove
225-2: Upward slope
225-3: Rib bending part
226: Handle mounting part
226-1: Rotating protrusion insertion hole
227: Handle holder
228: Rib reinforcement body
300: cover member
310: Outer extension
330: Body stack protrusion
350: Stack projection seating groove
400: Handle member
410: gripping part
430: a pair of bent parts
450: A pair of rotational coupling protrusions

Claims (15)

A body member having an accommodating space therein and having an open upper portion;
A frame member provided to be coupled around the upper end of the body member; and
a cover member provided to open and close the upper open portion of the body member;
Including,
The frame member is,
A first frame formed in a ring shape and provided so that at least a portion of the circumference is in contact with an outer circumference of the upper end of the body member;
It is formed in a ring shape corresponding to the shape of the first frame, and includes a second frame provided so that at least a portion of the circumference is in contact with the inner circumference of the upper end of the body member. Strength and insulation performance are improved while being lightweight. Cool box. delete According to paragraph 1,
A cold storage box with improved strength and insulation performance while being lightweight, characterized in that the first frame and the second frame are provided to be coupled to each other. According to paragraph 3,
The first frame and the second frame are,
Lightweight, characterized in that the coupling protrusion formed on one of the first frame and the second frame is mutually coupled by inserting it into a coupling groove formed on the other one of the first frame and the second frame. A cold storage box with improved strength and insulation performance. According to clause 4,
The first frame is,
It includes a first frame rib having a coupling protrusion protruding in an inner direction of the first frame along the circumference of the first frame,
The second frame is,
A cold storage box with improved strength and insulation performance while being lightweight, comprising a second frame rib having a coupling groove recessed in the inner direction of the second frame along the circumference of the second frame. According to clause 5,
The first frame is,
Further comprising a frame rib support disposed at a predetermined distance from the first frame rib in an inner direction of the first frame,
The second frame rib is,
A cold storage box with improved strength and insulation performance while being lightweight, characterized in that it is disposed between the first frame rib and the frame rib support and is provided to prevent elastic deformation by being supported by the first frame rib and the frame rib support. . According to paragraph 1,
In the body member,
A first frame contact portion is provided so as to protrude from the outer periphery of the upper end of the side wall toward the outside of the body member and has a flat outer surface,
The first frame is,
A cold storage box with improved strength and insulation performance while being lightweight, characterized in that at least a portion is coupled to the body member in a form that contacts the first frame contact portion. In clause 7,
The first frame is,
At the lower end of the first frame, an inner bend part is provided that is bent in the inner direction of the first frame,
A cold storage box with improved strength and insulation performance while being lightweight, characterized in that the inner bent portion is provided so as to be caught at the lower end of the first frame contact portion. According to paragraph 1,
In the body member,
A second frame contact portion is provided in a depressed shape from the inner circumference of the upper end of the side wall toward the outside of the body member and has a flat outer surface,
The second frame is,
A cold storage box with improved strength and insulation performance while being lightweight, characterized in that at least a portion is coupled to the body member in a form that abuts the second frame contact portion. According to paragraph 1,
The body member is,
A cold box made of expanded polypropylene and having at least part of the surface glazed, making it lighter and with improved strength and insulation performance. According to clause 10,
The body member is,
A cold storage box with improved strength and insulation performance while being lightweight, characterized in that the inner surface forming the internal receiving space is glazed. According to paragraph 1,
The cover member is,
A cold box made of expanded polypropylene and having at least part of the surface glazed, making it lighter and with improved strength and insulation performance. According to clause 12,
The cover member is,
A cold storage box with improved strength and insulation performance while being lightweight, characterized by the outer front being glazed. According to paragraph 1,
A cold storage box with improved strength and insulation performance while being lightweight, further comprising a handle member rotatably coupled to the frame member. According to clause 14,
The handle member is,
A gripping portion having a certain length,
a pair of bent portions formed by bending both ends of the grip portion in the same direction;
The pair of bent portions extend from each end to face each other, and each includes a pair of rotary coupling protrusions that are rotatably coupled to the body member. The cold insulation has improved strength and insulation performance while reducing the weight. Box.

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