JPH10227559A - Box body for refrigerator of prefabricated frame structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To retain the air-tightness of the junction between a recess and a projection of each adjacent wall panel in a box body for a refrigerator of a prefabricated frame structure. SOLUTION: A recess and a projection of circumferentially adjacent wall panels 9A and 9B are joined. A corner piece 30 is provided at the upper and lower corners of one side of the wall panel 9B facing the junction. The corner piece 30 is provided with a joining projection 31 and a joining wall 33, which covers the upper and lower corners of a panel frame f of the other wall panel 9A. A seal body 37 is integrally provided on the outer surface of the joining wall 33. The seal body 37 interrupts an air flow by cooperating with a lip 22a which is provided on the joining projection 31, and seals the joint gap of the recess-projection junction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator for storing brown rice and vegetables at a low temperature. The box body of this refrigerator has a prefabricated structure, and after assembling a wall panel at an installation place, a power device such as a cooler is attached.

[0002]

2. Description of the Related Art In a refrigerator of this type, a box is formed by using a wall panel having excellent heat insulating performance in the form of a siding panel for an outer wall. Adjacent wall panels are connected by an uneven engagement structure commonly used in siding panels to prevent air leakage from the joint. The concavo-convex engaging portion maintains an airtight state by using a caulking material or a sealing material as needed.

[0003] The present applicant has previously proposed a joint structure in which a box having excellent airtightness can be constructed by simply assembling a wall panel without omitting a sealing material such as a caulking material (Japanese Patent Application No. Hei 8-8). 30
No. 3571). In this case, a necessary outer peripheral frame of the wall panel is formed by combining the first to third frames 14, 15, and 16 made of a plastic strip shown in FIG. The first frame body 14 and the third frame body 16 are provided with joining grooves 18
24, and the second frame 15 has the joining groove 18
・ 24 has a projection 20 which fits inside. Protrusion 20
The front and rear surfaces of the lip 22 are provided with upper and lower lip portions 22 which are elastically deformed and adhere to the joining grooves 18 and 24.
Prevents air leakage from the joint. Below the lip 22, a flange wall 19 is formed to project.

In the refrigerator box described above, when the peripheral side walls such as the left and right side walls and the rear wall of the box are formed by a plurality of wall panels, for example, the rear wall shown in FIG. 3 is taken as an example. The left wall panel 9A forms the upper frame, the lower frame, and the left and right vertical frames with the second frame 15, and the right wall panel 9B forms the upper and lower frames and the right vertical frame with the second frame 15, The left vertical frame is formed by the first frame 14. Thus, as shown in FIG. 11, in order to seal the gap between the upper frames of the left and right wall panels 9A and 9B, the corner pieces 40 are bonded and fixed to the upper and lower corners of the right wall panel 9B, and the adjacent wall panels 9A・
The airtightness between 9B is maintained. The corner piece 40 is provided with a connecting projection 42 provided with a lip 41 similar to that of the second frame 15 and a flange wall 43, and further circumscribes the inner and outer surfaces of the proximal end of the projection 20 of the left wall panel 9A. Arm 44
And a leg block 45 which is pressed into the foam material layer.

After the above panel joining is performed, the ceiling panel 6 is assembled as shown in FIG. 8, and the third frame 16 having the joint groove 24 on the ceiling panel 6 side is attached to the rear wall panels 9A.
The protrusions and recesses engage with the second frame 15 of 9B and the corner piece 40. Similar bonding was performed on the floor panel side.

[0006]

SUMMARY OF THE INVENTION Each frame 14, 15, 1
6 is made of a plastic strip material. However, due to variations in dimensions due to differences in molding conditions at the time of forming the strip material, and variations in dimensions at the time of cutting or assembling each of the frames 14 to 16, etc.
There is a small gap between the lip 22 and the joining groove 24 locally. Even in such a case, since the lips 22 are provided at a total of four locations, the air that has entered between the upper and lower lips 22 does not flow out of the refrigerator as it is or flows in from the outside. The problem is that air that has entered between the upper and lower lips 22 enters and exits through the path shown by the arrow between the corner piece 40 and the left wall panel 9A as shown in FIG. There, left and right wall panels 9A, 9
There is a place where the lip 22 is not continuous between B and the lip 22 of the right vertical frame of the left side wall panel 9A is crushed by the arm portion 44 of the corner piece 40, and the sealing function at that portion is impaired. is there. These phenomena were identified by making a prototype of the box and checking its airtightness.

An object of the present invention is to make it possible to construct an airtight box for a refrigerator simply by joining and assembling wall panels. Another object of the present invention is to provide a case in which, when peripheral side walls such as left and right side walls and a rear wall of a box are formed by connecting a plurality of wall panels, air is externally passed through the vicinity of upper and lower corner pieces. To stop in and out of
Accordingly, it is an object to obtain a prefabricated refrigerator box having excellent airtightness.

[0008]

A box for a refrigerator according to the present invention comprises a box 1 having an entrance at the front as shown in FIG.
It includes a ceiling panel 6 and a floor panel 7 and a peripheral side wall that engages and recesses with both panels 6 and 7, and the left and right sides or the rear side of the peripheral side wall has a plurality of wall panels 9 A and 9 B in the circumferential direction. It is configured to engage. Double wall panel 9A / 9B
One of the wall panels 9A has a projection 20 in which an upper and lower frame of the panel frame f and one of the vertical frames are each provided with a lip 22 which is elastically deformable on the inner and outer surfaces as shown in FIG. It is formed by the frame 15. On the other wall panel 9B, the upper and lower frames of the panel frame f are formed by the second frame body 15, and one vertical frame facing the joint with the one wall panel 9A is the second frame body 1.
First frame 1 having a joining groove 18 which is fitted to the projection 20 of the first frame 1
4. On the other wall panel 9B, corner pieces 30 for closing a gap between upper frames and lower frames of adjacent wall panels 9A and 9B are attached to upper and lower corners facing a joint portion with one wall panel 9A. . As shown in FIG. 6, the corner piece 30 is
Connecting protrusion 31 having the same structure as the above, and joining groove 1 of first frame body 14
8 and a pair of connecting walls 33 projecting continuously from the connecting protrusions 31 and covering the inner and outer surfaces of the upper and lower corners of the panel frame f of one wall panel 9A. I have.
The connecting wall 33 is provided on each of the outer surfaces of the connecting walls 33.
A seal body 37 for blocking the air flow along the surface of the body is integrally protruded.

The corner piece 30 is provided with elastically deformable lips 22a on the front and rear outer surfaces of the connecting projection 31, and the flange wall 19a is provided on the front and rear of the base of the connecting projection 31.
And the seal body 37 is provided with the lip 22a of the connecting projection 31.
Vertical lip 37a provided continuously at the end of the connecting wall 33
A vertical lip 37a provided at a side end of the vertical lip 37a and a horizontal lip 37b projecting from the upper surface of the flange wall 19a and connecting the lower ends of the two vertical lips 37a are formed in a U-shaped frame shape.

[0010]

In FIG. 1, a pair of connecting walls 33 provided on the corner piece 30 cover the inner and outer surfaces of the upper and lower corners of the panel frame f adjacent to the connecting protrusion 31, and intersect in an L-shape at the upper and lower corners. The lip 22 to be crushed is crushed to seal the joint surface between the connection wall 33 and the panel frame f. In this state,
Air that has entered between the lips 22 or between the lip 22 and the flange wall 19 can flow in and out along the surface of the connecting wall 33. In order to prevent this air flow, a sealing body 37 is protruded from the inner and outer connecting walls 33. When the ceiling panel 6 and the floor panel 7 are assembled on the peripheral side wall, the joining grooves 24 provided in the panel frames f of the panels 6 and 7 are connected to the wall panels 9A and 9 of the peripheral side wall as shown in FIG.
B is fitted over the projection 20 of the upper and lower frames, and the lip 2 of the projection 20 is
Close contact with 2. Similarly, the lip 22a of the connecting projection 31 of the corner piece 30 and the sealing body 3 provided on the connecting wall 33
7 also comes into close contact with the joining groove 24 to prevent air flow in and out (see FIG. 9).

In the seal body 37 composed of the vertical lip 37a and the horizontal lip 37b, for example, the air flow along the longitudinal direction of the lip 22a is blocked by the vertical lip 37a, and the air flow in the direction intersecting with the lip 22a is reduced by the horizontal lip. Block at 37b. The vertical lip 37a and the horizontal lip 37b may be formed so as to cross vertically and horizontally including the inclined state. However, from the viewpoint of facilitating the molding of the corner piece 30, both lips 37a and 37b are vertically and horizontally. Preferably, the state is orthogonal to.

According to the seal body 37 formed in a U-shaped frame by a pair of vertical lips 37a and a horizontal lip 37b connecting these lower ends, the air flow along the longitudinal direction of the lip 22a is controlled by the pair of vertical lips 37a. Since they can be individually blocked, a more reliable sealing function can be obtained. The sealing body 37 can be easily formed.

[0013]

1 to 9 show an embodiment of a box for a refrigerator according to the present invention. In FIG. 2, the refrigerator includes a box 1 having a front opening, a pair of left and right doors 2, which swing open and close the front of the opening of the box 1, a cooler 3 installed on one upper surface of the box 1, and a cooler. 3 is provided.
Reference numeral 5 denotes a lock that also serves as a door handle.

3 and 5, the box 1 has a prefabricated structure formed by joining six wall panels formed in advance. Specifically, it is composed of a ceiling panel 6, a floor panel 7, a pair of left and right side wall panels 8.8, and a pair of left and right wall panels 9A and 9B joined to each other. After joining, ceiling panel 6
And each of the side panels 8, and the floor panel 7 and each of the side panels 8.8 have four L-shaped connecting brackets 10 each having a front end.
Is connected and fixed. Further, joint corners between the rear wall panels 9A and 9B and other panels are connected and fixed by corner fittings 11 having three orthogonal face walls. The ceiling panel 6 has an opening 12 for the cooler 3.

Each of the above-mentioned wall panels includes an outer peripheral panel frame f assembled in a square frame shape, a pair of front and back outer plates s fixed to the panel frame f, and the inside of the panel frame f and the inside of the outer plate s. It is made of the heat insulating material g filled and foamed, and is carried to the construction site in a completed state. By the adhesive action of the heat insulating material g,
The panel frame f and the outer plate s are firmly integrated. The outer plate s is formed of a painted steel plate or a plated steel plate.

The panel frame f of each wall panel is shown in FIG.
It is formed using seed frames 14, 15, and 16. Each frame 1
Nos. 4 to 16 are each made of a plastic strip. The first frame 14 is formed of a channel material having a U-shaped cross section, and has a groove 17 for inserting and engaging the peripheral wall of the outer plate s on both sides of the opening edge thereof. An H-shaped joint groove 18 is formed in the groove.

The second frame 15 is a pair of left and right flange walls 1.
9 has an H-shaped projection 20 fitted in the joining groove 18.
A groove 21 is provided below the flange wall 19 for inserting and engaging the peripheral wall of the outer plate s. On the outer surface located inside and outside the projection 20, two elastic lips 2
2 are integrally protruded in a state of being inclined vertically in the longitudinal direction.

The third frame 16 is made of a frame material having an L-shaped cross section. A groove 23 for inserting and engaging the peripheral wall of the outer plate s is provided at each end of the frame, and the third frame 16 is formed in the lower frame wall. A joining groove 24 having the same shape as that of the joining groove 18 is formed to be concave.

The panel frames f of the ceiling panel 6 and the floor panel 7 are each formed by assembling a third frame 16 in a square frame shape. The upper and lower frames of the panel frames f of the left and right side panels 8 are respectively formed by the second frames 15, and the front and rear frames are formed of the third frame.
The frame 16 is formed. Corner pieces 26 and 27 are attached to intersections of the upper and lower frames and the front and rear frames, respectively.

The panel frame f of the left wall panel 9A of the pair of wall panels 9A and 9B is formed by assembling the second frame 15 in a square frame shape. Corner pieces 27 are attached to the intersections of the upper and lower frames and the left vertical frame, respectively. The panel frame f of the right wall panel 9B has an upper frame, a lower frame, and a right vertical frame formed by the second frame 15, and a left vertical frame formed by the first frame 14. At the intersection of the upper and lower frames and the left vertical frame, the corner pieces 30 according to the present invention are mounted.

In FIG. 6, the corner piece 30 is
It has a connecting protrusion 31 having the same structure as the protrusion 20 of the frame 15,
It is made of a plastic molded product in which a connection groove 32 having the same structure as the connection groove 18 of the first frame body 14 is provided at one end, and a pair of connection walls 33 continuous with the connection protrusion 31 are provided before and after the connection groove 32. . On the other end and the lower surface of the connecting projection 31 on the right side in the drawing,
The connecting arm 34 and the connecting leg 35 are respectively provided so as to protrude. The connecting arm 34 is inserted into and joined to the inner surfaces of the upper and lower second frames 15 from the lateral outer side to connect the connecting protrusion 31 to the protrusion 20.
The connecting leg 35 is inserted and joined to the inner surface of the first frame 14 to connect the connecting groove 32 to the joining groove 18 continuously.

On the front and rear outer surfaces of the connecting protrusion 31, elastically deformable lips 22a similar to the lip 22 of the protrusion 20 are provided.
Are provided obliquely downward in the upper and lower rows across the left and right sides, and flange walls 19 a are projected from front and rear of the base end of the connection projection 31. As shown in FIG. 7, in a state where the left and right wall panels 9A and 9B are connected by concave and convex engagement, a corner piece 30 is formed.
The connecting wall 33 covers the upper corner and the lower corner of the left wall panel 9A from the outside, respectively, and crushes the lip 22 intersecting the vertical and horizontal directions of the upper frame and the right vertical frame of the wall panel 9A. In order to prevent the flow of air along the outer surface of the connecting wall 33,
A seal body 37 protrudes from each of the outer surfaces of the connection wall 33.

In FIG. 6, the sealing member 37 is
Left and right vertical lips 37a provided at the base end and side end of
And the horizontal lip 3 connecting the lower ends of the vertical lips 37a
7b is formed in a U-shaped frame shape in plan view. The vertical and horizontal lips 37a and 37b are made of a soft plastic material that can be elastically deformed similarly to the lip 22a, and these portions are integrally formed by a two-color molding method. Of the pair of vertical lips 37a, the vertical lip 37a on the base end side of the connecting wall 33 is integrally continuous with the lip 22a provided on the connecting protrusion 31.

The procedure for assembling the box 1 will be described. First, the floor panel 7 is placed on a base and fixed with bolts or the like as necessary. Next, the left and right side wall panels 8.8 are assembled on the floor panel 7, respectively, and the front end corners of the both 7.8 are connected with the connecting bracket 10
And fasten with bolts. At this time, the projections 20 of the lower frame (the second frame 15) of each side wall panel 8 fit into the joining grooves 24 of the left and right frames (the third frame 16) of the floor panel 7 to increase the connection strength. To compensate for the orthogonality of both panels 8 and 7. At this time, the lip 22 provided on the projection 20 is crushed to seal the joining gap.

Similarly, the left wall panel 9A is unevenly engaged with the floor panel 7, and the left vertical frame (the second frame 15) is formed.
Engages with the rear frame (third frame 16) of the left side wall panel 8 (see FIG. 5). In this state, the lower rear corner where the floor panel 7, the side wall panel 8, and the left wall panel 9A are simultaneously adjacent is fastened and fixed via the corner fitting 11 with bolts. The remaining right-side wall panel 9B is unevenly engaged with the floor panel 7, and its left vertical frame (first frame 14) is, as shown in FIG. 7, the right vertical frame (second frame 15) of the left wall panel 9A. Engages unevenly. At the same time, the right vertical frame (second frame 15) of the wall panel 9B engages with the rear frame (third frame 16) of the right side wall panel 8 in an uneven manner.
In this state, the rear lower corner where the floor panel 7, the side wall panel 8, and the right wall panel 9B are simultaneously adjacent is fastened and fixed via the corner fitting 11 with bolts. Each rear wall panel 9A / 9B
Similarly, the rear upper corner where the side wall panels 8 and 8 are adjacent to each other is fastened and fixed with bolts via corner fittings 11 in the same manner. Finally, both side wall panels 8.8 and rear wall panels 9A / 9
After the ceiling panel 6 is engaged with the peripheral side wall made of B in an uneven manner, the ceiling panel 6 is fastened and fixed to the corner fitting 11 at the upper rear corner with bolts.

When the ceiling panel 6 is mounted on the peripheral side wall, the projections 20 provided on the upper frames of the wall panels 8, 9A, 9B are fitted into the joint grooves 24 on the ceiling panel 6 side as shown in FIG. Accordingly, the lip 22 is in close contact with the joining groove 24 in a state where the lip 22 is elastically deformed downward. Similarly, the lip 22 a also closely contacts the joint groove 24 at the connecting protrusion 31 of the corner piece 30. As shown in FIG. 9, the vertical lip 37 a of the seal body 37 is elastically deformed in the longitudinal direction of the lip 22 a and closely adheres to the joining groove 24, thereby blocking the flow of air along the longitudinal direction of the lip 22. Further, the lateral lip 37b is crushed by the groove peripheral wall of the joining groove 24, and blocks the flow of air in a direction intersecting the longitudinal direction of the lip 22a. Therefore, it is possible to reliably prevent cold air and outside air inside the box 1 from going in and out of the corner piece 30 at and near the mounting portion. A similar sealing action can be exerted between the floor panel 7 and the lower corner piece 30.

FIG. 10 shows a modification of the seal body 37. A vertical lip 37a is provided only on the side end of the connecting wall 33, and the lip 22a provided on the connecting projection 31 is extended to the connecting wall 33 side. The horizontal lip 37b is formed using the lip 22a.

In addition to the above, two or more vertical lips 37a can be formed. The seal body 37 can be formed with the vertical lip 37a and the horizontal lip 37b obliquely inclined, and may be formed in a curved shape if necessary. For example, it can be formed in a W shape, an M shape, a V shape, a U shape, an inverted A shape, or the like when viewed from the front. The corner piece 30 according to the present invention can be similarly applied to a case where the side panel 8 is formed by a plurality of wall panels.

[0029]

According to the present invention, the connecting wall 33 is provided on the corner piece 30 and, when the adjacent wall panels 9A and 9B are joined in the circumferential direction, the connecting wall 33 is connected to the corner of the panel frame f on one wall panel 9A side. Cover the wall 33, 9A
Can be sealed. Furthermore, connecting wall 3
3 is provided with a seal body 37 on the outer surface thereof, and the wall panel 9A.
The joint gap between the corner groove 30 and the joint groove 24 of the ceiling panel 6 or the floor panel 7 which is unevenly engaged with 9B is sealed by a seal body 37, and the air flow along the outer surface of the connecting wall 33 is sealed by the seal body 37. It can be cut off. Therefore, by simply assembling each of the wall panels 6 to 9B, it is possible to construct a box 1 having excellent airtightness, and it is possible to save the labor of the construction as much as the sealing work such as the caulking work can be omitted. Since the dissipation of cool air inside the box 1 and the inflow of outside air can be reliably prevented, the operation cost of the refrigerator can be reduced correspondingly, and deterioration and deterioration of the storage target such as brown rice can be suppressed well.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a joint state of corner pieces.

FIG. 2 is an overall perspective view.

FIG. 3 is an exploded view of a wall panel constituting the box.

FIG. 4 is a side view of a frame constituting the panel frame.

FIG. 5 is a cross-sectional plan view of the box.

6A and 6B are an external three view and a perspective view of a corner piece.

FIG. 7 is a front view showing a joined state of the corner pieces.

FIG. 8 is a sectional view taken along line AA in FIG. 7;

FIG. 9 is a sectional view taken along line BB in FIG. 7;

FIG. 10 is a perspective view showing another embodiment of the corner piece.

FIG. 11 is a perspective view showing a comparative example.

[Explanation of symbols]

 6 ceiling panel 9A / 9B wall panel 24 joining groove 20 protrusion 30 corner piece 32 connecting groove 33 connecting wall 37 seal body 37a vertical lip 37b horizontal lip

Claims (3)

[Claims] 1. A box body 1 having an entrance on the front side includes a ceiling panel 6 and a floor panel 7, and peripheral side walls which engage with the panels 6 and 7 in a concave and convex manner. The rear surface has a plurality of wall panels 9A
9B is a prefabricated refrigerator box configured by engaging concave and convex in the circumferential direction, wherein one of the two wall panels 9A and 9B is an upper and lower frame of a panel frame f and one of the vertical frames. Each of the frames is formed of a second frame body 15 having a projection 20 on which an elastically deformable lip 22 is provided on the inner and outer surfaces, and the other wall panel 9B has upper and lower frames of a panel frame f. One vertical frame formed by the two frame members 15 and facing the joint portion with the one wall panel 9 </ b> A is formed by the first frame member 14 having the joint groove 18 which is fitted to the protrusion 20 of the second frame member 15. The other wall panel 9B has corner pieces for closing the gap between the upper frame and the lower frame of the adjacent wall panels 9A and 9B at the upper and lower corners facing the joint with the one wall panel 9A. The corner piece 30 is attached to the second frame 15. And a connecting groove 32 having the same structure as the joining groove 18 of the first frame body 14 and a connecting protrusion 32 having the same structure as the connecting groove 31 of the first frame body 14. And a pair of connecting walls 33 that cover the inner and outer surfaces of the upper and lower corners of the panel frame f. A sealing body 37 that blocks air flow along the surface of the connecting wall 33 is provided on each of the outer surfaces of both connecting walls 33. A prefabricated refrigerator box that is integrally protruded. 2. The seal body 37 is provided with at least a connecting wall 33.
2. The prefabricated refrigerator box according to claim 1, wherein the box is formed by a vertical lip 37a protruding from a side end of the lip and a horizontal lip 37b continuous with the vertical lip 37a. 3. An elastically deformable lip 22a is provided on the outer surface of the corner piece 30 before and after the connecting protrusion 31, and a flange wall 19a is provided on the front and rear of the base of the connecting protrusion 31, and the seal body 37 is connected. The vertical lip 37a provided continuously at the end of the lip 22a of the protrusion 31, the vertical lip 37a provided at the side end of the connecting wall 33, and the vertical lip 37a protruding from the upper surface of the flange wall 19a. 2. A box for a refrigerator having a prefabricated structure according to claim 1, wherein the box is formed in a U-shaped frame with a horizontal lip 37b connecting lower ends of the refrigerator.