JP3416385B2 - Door for insulated box - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door for an insulating box. That is, the present invention relates to a door for a heat insulating box that stores various articles therein. 2. Description of the Related Art FIG. 5 is a longitudinal sectional view of a main part of a door for a heat insulating box according to a conventional example of this kind. As shown in FIG. 1, a conventional door 1 of this type has a door panel 2 made of sheet metal on the surface and a sheet metal welded to the inside of a bent outer peripheral end of the door panel 2 while leaving a hollow portion. Panel 3 made of
A substantially flat heat insulating material 4 disposed inside the door panel 2 while the outer peripheral portion is held by the interposition panel 3, and a sandwich panel disposed further inside the heat insulating material 4 to form a sandwich panel. In this case, the heat insulating panel 8 is fixed to the interposition panel 3 and the cover 6 with rivets 7. The cover 6 has one end attached and fixed to the heat insulating panel 8 with the rivet 7 as described above.
The other end is bonded to the outside of the outer peripheral end of the door panel 2, 9 denotes the bonding position, and 10 denotes the welding position described above. Further, in the door 1 of this type, a sealing weather strip 11 is attached and fixed outside the bent outer peripheral end of the door panel 2. Door panel 2
A plurality of hinges (not shown) for opening and closing are attached between the body and the body (not shown) of the heat insulating box, and a plurality of insertion holders (not shown) through which the lock shafts are inserted. However, it was attached and fixed. [0004] The following problems have been pointed out in such a conventional example. First, this kind of conventional door 1 is composed of the door panel 2, the interposition panel 3, the heat insulating material 4, the cover 6, the heat insulating panel 8, the weather strip 11, and the like as described above, and the configuration is complicated. However, the number of parts was large, and the bonding points 9 and the welding points 10 were also essential. Therefore, a problem has been pointed out that assembly man-hours take a lot of time and effort to manufacture. [0005] Second, it has been pointed out that the heat insulating panel 8 cannot be easily attached and fixed. That is,
In the conventional door 1 of this type, the heat insulating panel 8 is fixed to the door panel 2 with the rivets 7 via the interposition panel 3 and the cover 6 as described above. It has been pointed out that it is very difficult to perform positioning, that is, to adjust the vertical and horizontal positions, and it is difficult to attach and fix the heat insulating panel 8 to the door panel 2 in a predetermined positional relationship. Third, as described above, the door panel 2 is provided with the hinge for opening and closing and the insertion holder for the lock shaft, but the cross-sectional structure of the door panel 2 and the door 1 is required for these mountings. It was also pointed out that it varies from place to place, and that it takes time to make it from this aspect. That is, in the conventional door panels 2 and 1 of this type, the location and side where the hinge portion and the insertion holder are attached have a cross-sectional structure that is processed or reinforced for mounting as compared with other locations and sides. Minutes, it took time to make. The present invention has been made in view of such circumstances, and has been made to solve the above-mentioned problems of the conventional example. The present invention employs a mold having a predetermined structure to form a surface panel, a heat insulating panel, a cover, a weather strip, First, the structure is simplified and simplified by attaching and fixing the hinge portion, the insertion holder, and the like. Second, particularly, the positioning and positioning of the heat insulation panel are facilitated. The mounting location and sides of the holder can also have a common cross-sectional structure with others.
The aim is to propose a door for an insulated box. [0008] The technical means of the present invention to achieve this object is as follows. That is, the door for the heat-insulating box opens and closes the opening of the main body of the heat-insulating box in which various articles are stored. And it is arranged in a frame shape around the vertical and horizontal,
A flat outer surface, a plurality of ribs protruding from the inner surface, a flat portion formed at the tip of the rib, a groove formed between the ribs, and a flat portion formed near the tip of the rib near the outer periphery. And an extension rib further extended through the above, and the following surface panel, heat insulation panel, cover, weather strip, hinge portion, insertion holder, and the like. That is, a surface panel having an outer peripheral portion attached and fixed to an inner peripheral end portion of the molding material, and an outer peripheral portion attached to the extending rib while being brought into contact with and positioned with a flat portion and an extending rib of the molding material. The heat insulating panel is fixed and thus entirely disposed on the inner side of the front panel, and is fixedly attached between the heat insulating panel and the mold while covering an outer peripheral portion of the heat insulating panel and an extension rib of the mold. A weatherstrip, which is attached to and fixed to an outer peripheral end of the mold member and is capable of sealing the space between the opening of the main body and a vertical end of the side end of the opening of the main body. A plurality of hinge portions for opening and closing, which are attached between the outer surfaces of the mold members, and are attached and fixed to the outer surfaces of the vertical mold members,
A plurality of insertion holders for vertically inserting a lock shaft between lock holders provided at upper and lower ends of the opening of the main body. As described above, the door for the heat insulating box is provided with a mold having a predetermined structure, that is, a flat outer surface, ribs, a flat portion at the tip of the rib, a groove between the ribs, a rib extending from the rib near the outer periphery, and the like. It adopts a shaped material. The front panel is attached and fixed to the inner peripheral end portion of such a mold, and the heat insulating panel is attached and fixed to the extension rib while abutting and positioning the heat insulating panel on the flat portion and the extension rib of the mold. Further, a cover is attached and fixed between the heat insulating panel and the mold so as to cover the extension ribs and the like, a weather strip is attached and fixed to the outer peripheral end of the mold, and a hinge portion and an insertion holder are attached and fixed to the outer surface of the mold. It becomes. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail based on embodiments of the invention shown in the drawings. FIG. 1, FIG. 2,
3 and 4 are provided for explaining the embodiment of the present invention, and FIG.
2 is a perspective view, FIG. 2 is a longitudinal sectional view of a main part, FIG. 3 is a cross sectional view of a main part, and FIG. 4 is a cross sectional view of another main part. The door 12 opens and closes an opening C of a main body B of a heat insulating box A for storing various articles therein. First, these will be described in more detail. The heat insulating box A is used as a freezing box or a heat retaining box. When used as a freezing box, for example, a fresh food product is stored therein, and a cooler device is attached and a cool air outlet exists, A configuration in which dry ice is mixed is conceivable. The heat insulation box A includes a main body B having an opening C on the front surface,
And a door 12 for opening and closing the opening C.
The wall has a structure in which a heat insulating material such as urethane foam is interposed between steel plates and stainless steel plates inside and outside, and stores, transports, stores and transports perishable foods and other various items that need to be kept cool or warm. . The door 12 has a mold 13 first. The shape member 13 is arranged in a frame shape around the vertical and horizontal directions, and has a flat outer surface 14 and a plurality of ribs 16 protruding from the inner surface 15.
A flat portion 17 formed at the tip of the rib 16;
6 and the extending rib 1 further extending from the vicinity of the tip of the rib 16 near the outer periphery via the flat portion 17.
9 is provided. With respect to the molding 13 of such a door 12,
Further details will be described. The mold member 13 is made of, for example, an extruded aluminum product, and has a vertically long square-shaped frame shape as a whole. For example, between the ends of a total of four components, two vertically and two horizontally,
Each is formed by joining. The outer surface 14 of such a mold member 13 is formed flat, while a plurality of ribs 16 protrude in parallel from the inner surface 15, and the tip of each rib 16 is parallel to the outer surface 14 and the inner surface 15. Is formed with a flat portion 17. In the illustrated example, four ribs 16 protrude, and the two flat portions 17 near the inner periphery are independent of each other without being connected to the other, whereas the two flat portions 17 near the outer periphery are independent. 17 are integrally connected. And each rib 1
Although grooves 18 are formed between the six, the groove 18 near the outer periphery in the illustrated example has a hole shape because the flat portions 17 are integrated. The extension rib 19 extends from the vicinity of the tip of the rib 16 near the outer periphery, in the illustrated example, from the vicinity of the tip of the second rib 16 from the outer periphery, via the flat portion 17, and further in the same direction as the rib 16. . The shape 13 is as described above. Next, the front panel 20 and the heat insulating panel 21 will be described. The door 12 further includes a front panel 20 having an outer peripheral portion fixedly attached to an inner peripheral end portion 22 of the molding 13.
The outer peripheral portion is attached and fixed to the extending rib 19 while being in contact with and positioned on the flat portion 17 and the extending rib 19 of the mold member 13, and thus the heat insulating panel 21 arranged entirely on the inner side of the surface panel 20. And The front panel 20 and the heat insulating panel 21 will be described in further detail. The front panel 20 is made of, for example, a steel plate or a stainless steel plate, and has an outer peripheral portion attached and fixed to the inner peripheral end portion 22 of the frame-shaped mold member 13 located outside thereof by rivets 23. At that time, the front panel 20 is positioned by the end of the outer peripheral portion abutting on the rib 16 on the innermost circumference of the mold 13.
Further, the heat insulating panel 21 is composed of a heat insulating material such as urethane foam and a surface plate 24 made of a steel plate or a stainless steel plate adhered to one surface side, that is, an inner side thereof. In addition, they are arranged as a whole with an interval. The outer peripheral portion of such a heat insulating panel 21 has the other surface opposite to the above-described one surface, and has
3 is abutted and positioned on the flat portion 17, and the outer side is abutted and positioned on the extending rib 19 of the mold 13, and is fixed to the extending rib 19 by a tapping screw 25. A concave portion 26 is formed on the outer surface of the extension rib 19, and the tapping screw 25 is used without protruding from the outer surface of the extension rib 19 while using the concave portion 26. The front panel 20 and the heat insulation panel 21
It looks like this. Next, the cover 27 will be described. The door 12 is provided with a cover 27 that covers the outer periphery of the heat insulating panel 21 and the extending rib 19 of the mold 13 and is fixed between the heat insulating panel 21 and the mold 13. The cover 27 is made of, for example, a bent resin plate or the like that is difficult to transmit heat, and covers one end of the heat insulating panel 2 while covering the extension rib 19 of the mold member 13 and the flat portion 17 near the outermost periphery.
The rivet 23 is attached to and fixed to the surface plate 24 on the outer peripheral portion of the mold 1, and the other end is attached and fixed to the flat portion 17 of the molding 13. As the rivet 23, for example, a blind rivet is used. The cover 27 functions to prevent heat from being transmitted between the inside and the outside through the mold 13 by covering the inner side near the outer peripheral end 28 of the mold 13 in this manner. For example, in the case of a freezing box, the external heat
It functions to shut off the inside and outside to prevent it from being transmitted to the inside via 9 or the like. Next, the weather strip 29 will be described. This door 12, together with such a cover 27,
The weather strip 2 which is attached to and fixed to the outer peripheral end 28 of the mold member 13 and is capable of sealing the space between the main body B and the opening C.
9 is provided. The weather strip 29 is formed on the outermost rib 16 which forms the outer peripheral end 28 of the molding 13.
Is fixed by a rivet 23 such as a blind rivet, and when the door 12 is closed, it comes into contact with the opening C of the main body B, thereby shutting off and sealing between the outside and the inside. The door 12 further includes a hinge 30 as shown in FIGS. This hinge part 30
Are mounted between the side end D of the opening C of the main body B and the outer surface 14 of the vertical molding 13, and function to open and close the door 12. That is, in the illustrated example, two hinge portions 30 are provided.
Is attached between the side end D of the opening C of the main body B and the outer surface 14 of the vertical molding 13, and the molding 13 is provided with one of the mounting portions 31 while using the groove 18. Are attached by bolts 32 and nuts 33. The hinge portion 30 has the other attachment portion 34 attached to the opening C side of the main body B, and the hinge pin 35 is interposed between the attachment portions 31 and 34. The door 12 is provided with an insertion holder 36 as shown in FIGS. The insertion holder 36 is attached and fixed to the outer surface 14 of the vertical molding 13,
The lock shaft 38 is vertically inserted between the lock receiver 37 provided at the upper and lower ends E of the opening C of the main body B, and a plurality of lock shafts are used. That is, the lock shaft 38 is held by the insertion holder 36 on the door 12 side.
It is immovable up and down and is rotatably held by a handle 39 around its axis, and can be locked and unlocked by a forward / reverse rotation with respect to a lock receiver 37 on the main body B side. I have. And this lock shaft 38
In the locked state, the door 12 is sealed and locked to the main body B side, and in the unlocked state of the lock shaft 38, the door 12 can be released from the main body B. Then, the insertion holder 36 for such a lock shaft 38 is provided on the outer surface 14 of the vertical
, And is fixedly mounted with bolts 32 and nuts 33. The present invention is configured as described above. Then, it becomes as follows. As described above, the door 12 for the heat insulating box A is made of a mold member 13 having a predetermined structure, that is, a flat outer surface 14, a rib 16 on the inner surface 15, a flat portion 17 at the tip of the rib 16, a groove portion 18 between the ribs 16, and a rib near the outer periphery. 1
The molding member 13 is provided with the extending rib 19 from the sixth member 6 and the like. And, on the inner peripheral end portion 22 of such a mold member 13,
The front panel 20 is attached and fixed, and the heat insulating panel 2
1 is attached and fixed to the extending rib 19 while abutting and positioning the flat member 17 and the extending rib 19 of the mold member 13. Further, an extension rib 19 is provided between the heat insulating panel 21 and the mold 13.
The cover 27 is attached and fixed so as to cover the mold member 13, the weather strip 29 is attached and fixed to the outer peripheral end 28 of the mold member 13, and the hinge portion 30 and the insertion holder 3 are attached to the outer surface 14 of the mold member 13.
6 is fixed. Now, the door 12 for the heat insulating box A is as described in the following first, second, and third. First, the door 12 has an outer surface 14, an inner surface 15, a rib 16, a flat portion 17, a groove portion 18, and an extension rib 19.
A frame-shaped mold member 13 provided with a material such as
3, the front panel 20, the heat insulating panel 21, the cover 27,
Weather strip 29, hinge 30, insertion holder 3
6 etc. are attached and fixed. Thus, this door 12
The configuration is simplified and simplified. Second, in the door 12, the heat insulating panel 21 is attached and fixed to the extension rib 19 with a tapping screw 25 while abutting and positioning the outer peripheral portion of the heat insulation panel 21 against the flat portion 17 and the extension rib 19 of the mold member 13. You.
Thus, in the door 12, the heat insulating panel 21 is easily and easily and accurately positioned and positioned. Third, in the door 12, the hinge portion 30 for opening and closing and the insertion holder 36 for the lock shaft 38 can be easily attached to the outer surface 14 of the molding 13 by the bolt 32 or the nut 33 while utilizing the groove 18. Installed and fixed. The mold member 13 to which the hinge portion 30 and the insertion holder 36 are attached and fixed in this manner.
Have the same configuration and a common cross-sectional structure all around. The door for the heat insulating box according to the present invention is:
As described above, the following effects are exhibited by adopting and fixing the front panel, the heat insulating panel, the cover, the weather strip, the hinge portion, the insertion holder, and the like by using the mold having the predetermined structure. First, the structure is simplified and simplified. That is, the door for the heat-insulating box employs a shape member having a predetermined structure, and the surface panel, the heat-insulating panel, the cover, the weather strip, the hinge portion, the insertion holder, and the like are attached and fixed. It is simplified, the number of parts is relatively small, and bonding and welding are not essential. Accordingly, as compared with the above-described conventional example of this type, the number of assembling steps is reduced, and the production is facilitated without any trouble. Second, the positioning and positioning of the heat insulating panel are facilitated. That is, in the door for the heat insulating box, the heat insulating panel is attached and fixed while being abutted and positioned on the flat portion and the extending rib of the mold member, so that the positioning and positioning can be performed simply, easily and accurately. So,
As in the above-described conventional example, the thermal insulation panel is not attached and fixed in the predetermined positional relationship, and the thermal insulation panel is arranged in the predetermined vertical and horizontal positional relationship with respect to the shape member and the surface panel. And is easily and reliably mounted and fixed. Thirdly, the mounting portions and sides of the hinge portion and the insertion holder can have a common cross-sectional structure. That is, in the door of the heat insulating box, the hinge for opening and closing and the insertion holder for the lock shaft can be easily attached to the outer surface of the mold using the groove, and the location where the hinge and the insertion holder are attached in this way. -The cross-sectional structure has a common cross-sectional structure all around. That is, unlike the above-described conventional example of this type, the mounting portion / side of the hinge portion or the insertion holder is different from other portions / sides, and it is not particularly necessary to have a cross-sectional structure processed or reinforced for mounting. Since a mold having a common cross-sectional structure is used over the entire circumference, the production can be facilitated from this aspect as well. As described above, the effects exhibited by the present invention are remarkably large, for example, all the problems existing in this type of conventional example are eliminated.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows a door for an insulated box according to the present invention.
BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view provided for description of embodiment of this invention. FIG. 2 is a longitudinal sectional view of a main part, used for describing the embodiment of the present invention. FIG. 3 is a cross-sectional view of a main part, used for describing the embodiment of the present invention. FIG. 4 is a cross-sectional view of another main part for describing the embodiment of the present invention. FIG. 5 is a longitudinal sectional view of a main part of a door for a heat insulating box according to a conventional example of this kind. DESCRIPTION OF SYMBOLS 12 Door 13 Mold member 14 Outer surface 15 Inner surface 16 Rib 17 Flat portion 18 Groove portion 19 Extension rib 20 Surface panel 21 Insulation panel 22 Inner peripheral end 27 Cover 28 Outer peripheral end 29 Weather strip 30 Hinge part 36 Insertion holder 37 Lock receiver 38 Lock shaft A Thermal insulation box B Main body C Opening D Side end E Upper and lower end

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) E06B 5/00 E06B 3/68-3/88 F25D 23/02

Claims (1)

(57) [Claim 1] A door 1 for opening and closing an opening C of a main body B of a heat insulating box A for storing various articles therein.
2, which is arranged in a frame shape around the vertical and horizontal directions, and has a flat outer surface 14;
A plurality of ribs 16 protruding from the inner surface 15, a flat portion 17 formed at the tip of the rib 16, a groove portion 18 formed between the ribs 16, and A mold 13 having an extension rib 19 further extended through the flat portion 17, a surface panel 20 having an outer peripheral portion fixedly attached to an inner peripheral end 22 of the mold 13, and a flat surface of the mold 13. An adiabatic panel 21 whose outer peripheral portion is attached and fixed to the extending rib 19 while being abutted and positioned on the portion 17 and the extending rib 19, and thus disposed entirely on the inner side of the surface panel 20; The outer peripheral portion of the panel 21 and the extension rib 19 of the mold 13
And the like, while covering the entire circumference of the cover 27 attached and fixed between the heat insulating panel 21 and the mold 13, and attached and fixed to the outer peripheral end 28 of the mold 13, and between the opening C of the main body B. A plurality of hinge portions 30 for opening and closing, which are attached between a side end D of the opening C of the main body B and the outer surface 14 of the vertical shape member 13; A lock receiver 37 fixed to the upper and lower ends E of the opening C of the main body B is attached and fixed to the outer surface 14 of the vertical mold member 13.
And a plurality of insertion holders 36 through which the lock shaft 38 is inserted vertically.