Panel-coupling frame member and panel-assembly type refrigerator for business use

Abstract

To provide a panel-coupling frame member suitable for connecting heat insulating panels to each other, and a panel assembly type refrigerator for business use using the same.SOLUTION: A panel joining frame material 30 is composed of a pair of frame materials 31, 32, one of which is formed in a convex shape (convex portion 31c) relative to the other, and the other of which is formed in a concave shape (concave portion 32c) that can accommodate the convex shape. Abutment surfaces 31a, 31a of one of the frame materials other than the convex and concave shapes have hollow cylindrical portions 31b, 31b formed of a soft resin, and one of the convex and concave shapes has thin plate-like plate pieces 31d, 31d made of a soft resin that protrude toward the other. When the pair of frame members 31, 32 are joined together facing each other, the cylindrical portions 31b, 31b are in airtight contact with mating abutment surfaces 32a, 32a, and the thin plate-like plate pieces 31d, 31d are in airtight contact with mating side wall surfaces 32c2, 32c2.SELECTED DRAWING: Figure 6

Description

Technical Field

[0001] The present invention relates to a panel coupling frame material and a panel-assembled commercial refrigerator.

Background Art

[0002] There are known commercial refrigerators that use a plurality of heat insulating panels and are assembled at the installation site. In order to abut and connect a plurality of rectangular heat insulating panels, a panel coupling member is attached to the end face of the heat insulating panel. By coupling a pair of panel coupling members to each other, the abutting heat insulating panels are fixed while maintaining a predetermined positional relationship. As such a panel coupling member, one disclosed in Patent Document 1 is known.

[0003] The panel coupling member disclosed in Patent Document 1 has a groove-shaped recess formed in the end face that extends in the length direction. If a separate member is pre-fitted into one panel coupling member, the separate member becomes a convex shape that protrudes with respect to the panel coupling member on the other side. Since this convex shape is shaped to be fitted into the recess of the panel coupling member on the other side, when the panel coupling members are abutted face to face, both are coupled.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] When coupling conventional panel coupling members face to face, although the heat insulating panels can be fixed in a predetermined positional relationship, there is no airtightness. Therefore, it was necessary to separately caulk the coupling surface or interpose an adhesive packing to which an adhesive material was applied. Since caulking and pasting work are performed at the construction site, there have been variations in the construction quality. The present invention provides a panel coupling frame material suitable for coupling heat insulation panels to each other, and a panel assembly type commercial refrigerator using the same.

Means for Solving the Problems

[0006] In one embodiment of the present invention, it is a panel coupling frame material composed of a pair of frame materials, one of which is formed in a convex shape with respect to the other, and the other is formed in a concave shape capable of accommodating the convex shape, and the panels are coupled by abutting against each other. A hollow cylindrical portion is formed of a soft resin on the abutting surface of one of the frame materials other than the convex shape and the concave shape, and a thin plate-like piece protruding toward the other is formed of a soft resin on one of the convex shape and the concave shape.

[0007] In the above configuration, the panel coupling frame material is composed of a pair of frame materials, one of which is formed in a convex shape with respect to the other, and the other is formed in a concave shape capable of accommodating the convex shape. The panels are coupled by abutting the pair of frame materials against each other. Since the hollow cylindrical portion formed of a soft resin is formed on the abutting surface of one of the frame materials other than the convex shape and the concave shape, when the pair of frame materials are abutted against each other, the hollow cylindrical portion abuts against the abutting surface of the other side, and is crushed when brought closer. The portion in contact with the other side when crushed forms an airtight surface. That is, the pair of frame materials are airtightly abutted against each other.

[0008] Further, the thin plate-like piece formed of a soft resin protrudes from one of the convex shape and the concave shape toward the other. When the pair of frame materials are brought closer, since one convex shape enters and is accommodated in the other concave shape, the thin plate-like piece abuts against the member on the other side, but since it is formed of a soft resin, it contacts while bending.

[0009] In another embodiment of the present invention, a protruding connection portion having at least the height of the thickness is formed in the thickness direction of the cylindrical portion on the abutting surface of the frame material forming the cylindrical portion, and the cylindrical portion is configured to be connected along the side surface in the protruding direction of the protruding connection portion. In the above configuration, a protruding connection part protrudes from the abutting surface of the frame member, and the cylindrical part is connected to this protruding connection part. The protruding connection part has at least the height of the thickness in the thickness direction of the cylindrical part, and the cylindrical part is connected along the side surface in the protruding direction of the protruding connection part. Therefore, when the frame members are abutted against each other, the side surface of the protruding connection part does not receive the force from the abutting direction. As a result, the force in the abutting direction is not applied to the connection part between the cylindrical part and the protruding connection part, and the connection state can be protected.

[0010] In another embodiment of the present invention, the cylindrical part is formed of a soft resin by resin extrusion molding and is integrally formed with other hard parts. In the above configuration, the cylindrical part of the soft resin is integrally formed with other hard parts by resin extrusion molding.

[0011] In another embodiment of the present invention, the thin plate-like piece is formed in a direction extending along the abutting surface from the convex part having the convex shape, and when the convex shape and the concave shape are engaged, it is configured to be able to abut against the side surface of the concave part having the concave shape and bend. In the above configuration, the thin plate-like piece extends in a direction extending along the abutting surface from the convex part, and when the convex shape and the concave shape are engaged, it abuts against the side surface of the concave part having the concave shape and bends. Since it extends in a direction extending along the abutting surface and can bend, it comes into contact with each other during the process when the convex shape and the concave shape are engaged.

[0012] In another embodiment of the present invention, when the thin plate-like piece abuts against the side surface of the concave part having the concave shape and bends, it is configured to be in airtight contact. In the above configuration, when the thin plate-like piece abuts against the side surface of the concave part having the concave shape and bends, it is in airtight contact. By being in airtight contact, independent individual air chambers are formed.

[0013] In another embodiment of the present invention, in the frame member in which the cylindrical part is formed, a first cut part is formed parallel to the abutting surface from the outside to the inside on the back side of the cylindrical part. Some end faces of the panel have a lip groove shape like that of a C-shaped steel. In the above configuration, on the back side of the abutting surface in the frame member formed with the cylindrical part, a first cut part is formed from the outside toward the inside in parallel with the abutting surface. That is, the open end of the C-shaped steel has lip pieces extending from the outside toward the inside. When both lip pieces on both sides enter the two first cut parts, the frame member closes the opening of the panel and is fixed at the open end. At this time, the cylindrical part is located outside the open end. When the other frame member is abutted from the facing side, it will be in airtight contact with the abutting surface or lip piece on the other side.

[0014] In another embodiment of the present invention, the side wall of the recess having the concave shape has a hollow structure. In the above configuration, when the convex part enters the concave part, an airtight space is formed between the two, improving the heat insulation performance. By further making the side wall of the concave part have a hollow structure, the heat insulation performance can be further improved.

[0015] In another embodiment of the present invention, on the outside of the side wall having the hollow structure, a second cut is formed from the front to the back in the abutting direction. Some end faces of the panel have a lip groove shape like that of a C-shaped steel, and the tip of the lip piece is folded back from the opening to the inside. When folded back like this, the tip of the folded-back lip piece enters the second cut formed on the outside of the side wall having the hollow structure from the front to the back in the abutting direction, and the frame member can be fixed to the end face of the panel.

[0016] In another embodiment of the present invention, a cold storage for panel assembly business use is formed by joining heat insulation panels serving as wall materials with the panel joining frame members. In the above configuration, a cold storage for panel assembly business use can be formed by joining heat insulation panels serving as wall materials with the panel joining frame members.

Effect of the Invention

[0017] According to the present invention, due to the structure formed in the frame member in advance, it is possible to increase the airtightness and join a plurality of heat insulation panels.

Brief Description of the Drawings

[0018]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Modes for Carrying Out the Invention

[0019] Hereinafter, embodiments of the present invention will be described based on the drawings. FIG. 1 shows a perspective view of the completed state of a panel-assembled commercial refrigerator according to an embodiment of the present invention, and FIG. 2 shows a perspective view of the state before panel connection. The panel-assembled commercial refrigerator 10 is formed in a box shape by joining a plurality of rectangular heat insulation panels 20 and a front panel 21. Panel connection members 30 are attached to the end faces and connection parts of the heat insulation panels 20. By joining a pair of panel connection members 30, the heat insulation panels that abut against each other are held and fixed in a predetermined positional relationship.

[0020] In this way, the panel-assembled commercial refrigerator 10 is formed by joining the heat-insulating panel 20 and the front panel 21 serving as wall materials with the panel coupling member 30. FIG. 3 shows a cross-sectional view of a frame member formed in a convex shape in the panel coupling frame member according to an embodiment of the present invention, and FIG. 4 shows a cross-sectional view of a frame member formed in a concave shape in the panel coupling frame member according to an embodiment of the present invention.

[0021] The panel coupling member 30 includes a pair of frame members 31 and 32, and joins the heat-insulating panel 20a and the heat-insulating panel 20b. The frame member 31 of the panel coupling member 30 is formed in a convex shape with respect to the frame member 32, and the frame member 32 is formed in a concave shape capable of accommodating the convex shape of the frame member 31, and the two form a pair. The frame member 31 formed in a convex shape and the frame member 32 formed in a concave shape are formed by resin extrusion molding with the cross-sectional shapes shown in the figure. Note that the frame members 31 and 32 are almost entirely hard portions formed by resin extrusion molding with a hard resin (PVC), but as will be described later, a part of them is formed by resin extrusion molding with a soft resin (PVC), so that a part is hard and a part is soft.

[0022] The frame member 31 and the frame member 32 are abutted against each other to join the panels. The frame members 31 and 32 of the panel coupling member 30 are attached to the end faces of the heat-insulating panel 20 and the front panel 21. When other panels are abutted against the side surface portions at the peripheries, they are also attached to the side surface portions. Also, in the case of partitioning the box-shaped interior, they are also attached to the portions where the end faces of the partitioning panels are abutted. In this way, the panel coupling member 30 is not attached only to the end faces at the peripheries of the panels.

[0023] The frame member 31 formed in a convex shape and the frame member 32 formed in a concave shape have abutting surfaces 31a and 32a that are parallel to each other in a facing state. The frame member 31 formed in a convex shape has two abutting surfaces 31a and 31a with the convex shape sandwiched therebetween, and the frame member 32 formed in a concave shape has two abutting surfaces 32a and 32a with the concave shape sandwiched therebetween. In this embodiment, the two abutting surfaces 31a and 31a are located on one plane, and the abutting surfaces 32a and 32a are also located on one plane. However, when the frame member 31 formed in a convex shape and the frame member 32 formed in a concave shape face each other and are abutted, the facing abutting surface 31a and the abutting surface 32a only need to be substantially parallel. That is, the two abutting surfaces 31a and 31a may form a predetermined angle, and the abutting surfaces 32a and 32a may also form an angle corresponding to the same angle.

[0024] Hollow cylindrical portions 31b and 31b made of a soft resin are formed on the abutting surfaces 31a and 31a of the frame member 31 formed in a convex shape. Since they are formed on the abutting surfaces 31a and 31a, they are parts of the frame member 31 other than the convex shape. The cylindrical portions 31b and 31b can also be formed on the frame member 32 formed in a concave shape, and in this case, they will be formed on the abutting surfaces 32a and 32a other than the concave shape.

[0025] At the portions where the cylindrical portions 31b and 31b are in contact with the abutting surfaces 31a and 31a, protruding connection portions 31a1 and 31a1 having at least the height of the thickness are formed in the thickness direction of the cylindrical portions 31b and 31b. The cross-sectional shape of the protruding connection portions 31a1 and 31a1 is a rectangular shape, and the surfaces 31a1a and 31a1a at the protruding tips are parallel to the abutting surfaces 31a and 31a, and both side surfaces 31a1b and 31a1b are perpendicular to the abutting surfaces 31a and 31a. The cylindrical portions 31b and 31b are connected along the side surfaces 31a1b and 31a1b in the protruding direction of the protruding connection portions 31a1 and 31a1. That is, the cylindrical portion 31b is formed in an annular shape that extends from one side surface 31a1b of the protruding connection portion 31a1 to the other side surface 31a1b.

[0026] The protruding connection parts 31a1, 31a1 are formed of the same rigid resin as the frame material 31, and are integrally formed such that the soft resin is supplied during extrusion molding and the soft cylindrical parts 31b, 31b are connected to the side surfaces 31a1b, 31a1b of the protruding connection parts 31a1, 31a1. Since it is formed in a ring shape with the soft resin, it has elasticity in the direction protruding from the abutting surfaces 31a, 31a. When the face member is abutted from the facing direction, it abuts against the face member and shrinks in the thickness direction, and the effect of airtight contact can be expected.

[0027] In the frame material 31 formed in a convex shape, a convex portion 31c is formed between the abutting surfaces 31a, 31a. The convex portion 31c is formed so as to be generally convex with a U-shaped cross section by the ceiling surface 31c1 and the both side wall surfaces 31c2, 31c2. In addition, in the frame material 32 formed in a concave shape, a concave portion 32c corresponding to the convex portion 31c is formed between the abutting surfaces 32a, 32a. The concave portion 32c is formed so as to be generally concave with a U-shaped cross section by the bottom surface 32c1 and the both side wall surfaces 32c2, 32c2. As a result, the bottom surface 32c1 faces the ceiling surface 31c1, and the both side wall surfaces 32c2, 32c2 face the side wall surfaces 31c2, 31c2, respectively.

[0028] In the convex portion 31c of the frame material 31 formed in a convex shape, a thin plate-like piece 31d protruding toward the concave portion 32c of the frame material 32 formed in a concave shape is formed. The thin plate-like piece 31d is formed of a soft resin, and the protruding length is such that it contacts and bends against the concave portion 32c facing each other when the panels are joined.

[0029] In this embodiment, a pair of plate pieces 31d, 31d are formed in the direction extending along the abutting surfaces 31a, 31a from the side wall surfaces 31c2, 31c2 in the convex portion 31c, and when the convex portion 31c and the concave portion 32c are engaged, they abut against the side wall surfaces 32c2, 32c2 of the concave portion and bend. Since it abuts and bends, the effect of airtight contact can be expected by the force trying to return to the original shape.

[0030] In this embodiment, although the thin plate-like piece 31d protrudes from the convex-shaped portion 31c, a thin plate-like piece may protrude from the concave-shaped portion 32c and abut against the side wall surfaces 31c2, 31c2 of the convex portion and bend. Further, a thin plate-like piece may be formed so as to protrude from either the ceiling surface 31c1 or the bottom surface 32c1 toward the other, or thin plate-like pieces may be formed so as to protrude from both surfaces toward each other.

[0031] The convex-shaped portion 31c is formed of the same hard resin as the frame material 31, and when extrusion molding, a soft resin is supplied so that the soft thin plate-like piece 31d is integrally formed so as to protrude from the side wall surfaces 31c2, 31c2 in the convex-shaped portion 31c. Since it is formed in a plate shape with a soft resin, it has elasticity in the bonding direction.

[0032] On the inner side of the cylindrical portions 31b, 31b in the frame material 31 where the cylindrical portions 31b, 31b are formed, first cut portions 31e, 31e are formed from the outside toward the inside in parallel with the abutting surfaces 31a, 31a. As will be described later, the first cut portions 31e, 31e are used for fixing to a shape such as a C-shaped steel at the end face of the heat insulating panel 20 or the front panel 21.

[0033] In the frame material 32, the side walls 32c3, 32c3 that form the side wall surfaces 32c2, 32c2 of the concave-shaped portion 32c have a hollow structure. That is, the side wall surfaces 32c2, 32c2 themselves are formed as part of the hollow side walls 32c3, 32c3. Since the hollow structure forms an air layer inside, an improvement in heat insulation can be expected.

[0034] Corresponding to the first cut portions 31e, 31e formed from the outside toward the inside in the frame material 31, in the frame material 32, second cut portions 32f, 32f are formed on the outside of the side wall having a hollow structure from the front toward the back in the abutting direction. As a result, in the frame material 32, the abutting surfaces 32a, 32a are located on both outer sides, the side walls 32c3, 32c3 having a hollow structure are located therebetween, and the concave portion 32c formed by also serving as a part of the side walls 32c3, 32c3 is located.

[0035] Since the convex-shaped portion 31c in the frame member 31 is formed in a U-shaped cross section, the inside thereof is open in a direction opposite to the abutting surface. At the opening end, folding protrusions 31c3a, 31c3a for fitting another member into the opening portion are formed. Further, on the back side of the concave-shaped portion 32c in the frame member 32, two side walls 32e1, 32e1 protrude to form a concave portion corresponding to the concave portion in which the convex-shaped portion 31c is formed in a U-shaped cross section. At the opening end between these side walls, folding protrusions 32e1a, 32e1a for fitting another member into the opening portion are formed.

[0036] FIG. 5 shows the coupling process of the panel coupling member, and FIG. 6 shows the state of completion of coupling in a cross-sectional view. When the frame member 31 and the frame member 32 are faced to each other and the convex-shaped portion 31c is inserted into the concave-shaped portion 32c, the cylindrical portions 31b, 31b of the frame member 31 abut against the abutting surfaces 32a, 32a of the frame member 32, and the soft thin plate-like pieces 31d, 31d begin to contact the side wall surfaces 32c2, 32c2. This state is shown in FIG. 5.

[0037] Furthermore, when the convex-shaped portion 31c is further inserted into the concave-shaped portion 32c, as shown in FIG. 6, the cylindrical portions 31b, 31b of the frame member 31 are pressed against the abutting surfaces 32a, 32a of the frame member 32 and are almost crushed. However, since the cylindrical portions 31b, 31b are formed of a soft resin, there is a restoring force to return to the original shape, and they are in close contact with the abutting surfaces 32a, 32a. That is, it becomes an airtight contact state, and the inner part becomes a sealed space, so the heat insulation effect is improved.

[0038] Also, since the side wall surfaces 32c2, 32c2 become narrower toward the back, the soft thin plate-like pieces 31d, 31d are more bent as they go deeper. The more they are bent, the stronger they are pressed by the restoring force, so they are in close contact with the side wall surfaces 32c2, 32c2. That is, it becomes an airtight contact state, and the inner part becomes a sealed space, so the heat insulation effect is improved. As a result, the heat insulation effect at the coupling portion is higher than that of the conventional panel coupling member.

[0039] The above-described panel coupling member 30 was only attached to the portion where the panels abutted against each other. However, it may be formed so as to form the surface of the panel not only at the portion where the panels abut against each other but also in the vicinity thereof. FIG. 7 is a cross-sectional view showing a state where the panel coupling frame members according to the modified example are completely coupled. The frame member 31 employs the one described above, and the paired frame member 132 has a decorative wall 132g orthogonal to the surface on which the concave-shaped portion 132c is formed. In a state where the convex-shaped portion 31c of the frame member 31 is inserted into the concave-shaped portion 132c of the frame member 132 and the coupling of the panel coupling frame members is completed, the decorative wall 132g is exposed to the outside and becomes the same as the other panel surfaces. In the reference numerals in the figure, since the reference numerals less than 100 are unified with the reference numerals of the above-described embodiments, the description thereof is omitted.

[0040] Needless to say, the present invention is not limited to the above embodiments. As is obvious to those skilled in the art, · appropriately changing the combinations of the mutually replaceable members and configurations etc. disclosed in the above embodiments and applying them · although not disclosed in the above embodiments, appropriately replacing the members and configurations etc. which are known technologies and are mutually replaceable with the members and configurations etc. disclosed in the above embodiments, and also changing the combinations thereof and applying them · although not disclosed in the above embodiments, appropriately replacing the members and configurations etc. which can be assumed as substitutes for the members and configurations etc. disclosed in the above embodiments by those skilled in the art based on known technologies etc., and also changing the combinations thereof and applying them are disclosed as one embodiment of the present invention.

Explanation of Reference Numerals

[0041] 10…Panel-assembled commercial refrigerator, 20(20a, 20b)…Thermal insulation panel, 21…Front panel, 30…Panel coupling member, 31…Frame member, 31a…Butting surface, 31a1…Protruding connection part, 31a1a…Tip surface, 31a1b…Side surface, 31b…Cylindrical part, 31c…Convex part, 31c1…Ceiling surface, 31c2…Side wall surface, 31c3a…Folded-back protrusion, 31d…Plate piece, 31e…First cut part, 32…Frame member, 32a…Butting surface, 32c…Concave part, 32c1…Bottom surface, 32c2…Side wall surface, 32c3…Side wall, 32e1…Side wall, 32e1a…Folded-back protrusion, 32f…Second cut part, 132…Frame member, 132c…Concave part, 132g…Decorative wall.

Claims

1. A panel coupling frame member composed of a pair of frame members, one of which is formed in a convex shape with respect to the other, and the other of which is formed in a concave shape capable of accommodating the convex shape, and the panel is coupled by abutting against each other, A hollow cylindrical portion is formed of a soft resin on the abutting surface of one of the frame members other than the convex shape and the concave shape, A panel coupling frame member, characterized in that a thin plate-like piece protruding toward the other is formed of a soft resin on one of the convex shape and the concave shape.

2. On the abutting surface of the frame member forming the cylindrical portion, a protruding connecting portion having at least the height of the thickness is formed in the thickness direction of the cylindrical portion, and the cylindrical portion is connected along the side surface in the protruding direction of the protruding connecting portion. The panel coupling frame member according to claim 1, characterized in that

3. The panel coupling frame member according to claim 1, characterized in that the cylindrical portion is integrally formed of a soft resin by resin extrusion molding with other hard portions.

4. The thin plate-like piece is formed in a direction extending along the abutting surface from the convex portion having the convex shape, and when the convex shape and the concave shape are engaged, it abuts against the side surface of the concave portion having the concave shape and can be bent. The panel coupling frame member according to claim 1, characterized in that

5. The panel coupling frame member according to claim 4, characterized in that when the thin plate-like piece abuts against the side surface of the concave portion having the concave shape and bends, it is in airtight contact.

6. A first cut portion is formed on the back side of the cylindrical portion in the frame member in which the cylindrical portion is formed, from the outside toward the inside in parallel with the abutting surface. The panel coupling frame member according to claim 1, characterized in that

7. The panel coupling frame member according to claim 1, characterized in that the side wall of the concave portion having the concave shape has a hollow structure.

8. A second cut portion is formed on the outside of the side wall having the hollow structure, from the front to the back in the abutting direction. The panel coupling frame member according to claim 1, characterized in that

9. A panel-assembled commercial refrigerator, characterized in that a heat-insulating panel serving as a wall material is formed by coupling with the panel coupling frame member.

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