JPH0748806Y2 - Corner insulation panel - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Field of the Invention The present invention relates to a corner heat insulating panel used in a prefabricated refrigerator / freezer, a clean room, or the like.

2. Description of the Related Art Conventionally, a corner heat insulating panel of this type is composed of a first side wall portion and a second side wall portion which is continuous at right angles to the first side wall portion,
The connecting side end of the upper and lower frame members of the first side wall portion and the connecting side end of the upper and lower frame members of the second side wall portion are butted against each other, and two vertical frame members are provided for these upper and lower frame members, It was manufactured by combining two aluminum surface plates and setting them with a jig, and then filling a hollow portion formed inside these panel constituent members with a heat insulating material by injection foaming.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, in the conventional heat insulation panel for corners, the connecting end portions of the upper frame member and the connecting end portions of the lower frame member are simply butted together, and these connecting ends are 45 because the first and second side walls are connected at right angles.
Since it is cut every time and its length is longer than the thickness of the panel (thickness of the side wall), the abutting part of the frame material opens due to the foaming pressure during the injection foaming of the heat insulating material, The heat insulating material may leak, and the leaked heat insulating material adheres to the surface plate, which may cause discoloration or damage to the surface plate. Moreover, the processing of the leaked heat insulating material was troublesome.

Therefore, conventionally, when the above panel constituent members were combined, these were strongly tightened with a jig, but if the tightening with such a jig is too strong, the thickness of the panel after the heat insulating material is molded is expected. However, there is a problem that the dimensional stability is poor and the product is less likely to vary because the panel thickness varies depending on the tightening condition of the jig.

Conventionally, especially when the panel thickness is large, such as a heat insulation panel for refrigeration, the abutting portions of the connecting ends of the upper and lower frame members are integrally joined by welding in advance to prevent deformation during injection foaming. However, there is a problem in that such welding work is very troublesome and time-consuming, and thus the heat insulation panel for corners cannot be easily and inexpensively manufactured.

The object of the present invention is to solve the above-mentioned conventional problems and to reliably prevent the deformation of the abutting portions of the upper and lower frame members during the injection and foaming of the heat insulating material, which may cause leakage of the heat insulating material at all. Therefore, it is an object of the present invention to provide a heat insulating panel for a corner, which has a high dimensional accuracy and a uniform quality, and can be manufactured extremely easily and inexpensively.

Means for Solving the Problems In order to achieve the above-mentioned object, the present invention provides one of the corner heat insulation panels of the present invention with a first side wall portion and a second side wall portion extending in a direction perpendicular to the first side wall portion. In the corner heat insulating panel, a connecting reinforcing member having a substantially L shape in plan view is provided at the connecting side end portions of the upper and lower frame members of the first side wall portion and the connecting side end portions of the upper and lower frame members of the second side wall portion. In the fitted corner heat insulation panel, the upper and lower frame members of the first and second side wall portions are convex as a whole, and have a downward convex portion for reinforcement having a substantially U-shaped cross section at the center of the top and both sides. A substantially inverted U-shaped engaging edge portion to which the folded edge portions of the inner and outer surface plates are locked is provided at the edge portion, and the coupling reinforcing member is substantially L-shaped when viewed from a plane and is fitted inside the upper and lower frame members. And the convex part that connects to both sides of this The bottom of the upper and lower frame members is provided with a hem portion that is brought into contact with the back surface, and a concave groove having a U-shaped cross section is provided in the longitudinal direction at the top of the convex portion to fit the downward convex portion of the frame member. A vertical frame member, inner and outer surface plates that are substantially L-shaped when viewed from above, a connecting reinforcing member, and an end closing member are combined, and a hollow portion formed inside these is filled with a heat insulating material by injection foaming. Is characterized by.

Another corner heat insulating panel of the present invention is a corner heat insulating panel including a first side wall portion and a second side wall portion extending at a right angle to the first side wall portion. In the corner heat insulation panel in which a substantially L-shaped connecting reinforcing member when viewed from above is fitted to the connecting portion and the connecting side end portions of the upper and lower frame members of the second side wall portion, the upper and lower sides of the first and second side wall portions are formed. The frame material has a convex shape as a whole, has a downward convex portion for reinforcement having a substantially U-shaped cross section at the center of its top, and has a substantially inverted U shape in which the folded edge portions of the inner and outer surface plates are locked at both side edge portions. An engaging edge portion is provided, and the connecting reinforcing member has a convex reinforcing member main body having the same cross-sectional shape as the convex upper and lower frame members and skirts on both side edge portions, and both end portions of the reinforcing member main body. It consists of a series of plug-in parts, and the plug-in parts fit inside the upper and lower frame members. There is provided a groove having a U-shaped cross section in which a downward convex portion of the frame member is fitted, and a stepped portion to which the end portions of the upper and lower frame members are abutted is provided between the reinforcing member main body and both insertion portions. Provided, the insertion portions of both ends of the connecting reinforcing member are respectively fitted inside the connecting ends of the upper and lower frame members, the upper and lower frame members are connected to each other through the connecting reinforcing member, and the upper and lower frame members, the connecting reinforcing member, It is characterized in that both vertical frame members, inner and outer surface plates that are substantially L-shaped when viewed from above, and end closing members are combined, and a hollow portion formed inside these is filled with a heat insulating material by injection foaming. I am trying.

Embodiment Next, an embodiment of the present invention will be described with reference to the drawings.

The corner heat insulation panel (1) according to the present invention is used by being arranged at four corners of a prefabricated refrigerator (10) as shown in FIG. 3, for example.

As shown in FIG. 1 and FIG. 2, this corner heat insulation panel (1) comprises a first side wall part (11) and a second side wall part (21) extending at right angles to the first side wall part (11). 1 side wall (11)
Convex upper and lower frame members (12) (13) on the connecting side (12a) (1
3a) and the upper and lower convex frame members (22) (2) of the second side wall (21)
The connecting side end portions (22a) and (23a) of 3) are fitted with connecting reinforcing members (5) and (5) that are substantially L-shaped when viewed from above.

Since the shapes and sizes of the upper and lower frame members are exactly the same, only one upper frame member (12) (22) is shown in the drawing, and the lower frame member is omitted and its reference numeral (13) ( 23) is shown in brackets in the corresponding places.

The upper and lower frame members (12), (22), (13) and (23) have a convex shape as a whole, and have a reinforcing downward convex portion (14) having a substantially U-shaped cross section at the center of the top and aluminum on both side edges. Substantially U-shaped engaging edge portions (15) (15) to which the folded edge portions (2a) (2a) of the inner and outer surface plates (2) (2) made of metal are locked, respectively.
Is provided.

Details of the connecting reinforcing member (5) are shown in FIGS. 2 and 4. In the figure, the connecting reinforcing member (5) is substantially L-shaped when viewed from above, and the upper and lower frame members (12) (22) (13) (23)
Consists of a convex portion (5a) fitted on the inner side of the and a hem portion (5b) which is continuous with both sides of the convex portion (5b) and is brought into contact with the back surfaces of both surface plates (2). A concave groove (6) having a U-shaped cross section is provided in the lengthwise direction at the top portion to which the downward convex portion (14) of the frame member is fitted. Further, as shown in FIG. 4, reinforcing ribs (7) having a narrow width are provided at three places on the rear surface of the connecting reinforcing member (5) where stress is particularly concentrated.

On the other hand, a concave vertical frame member (not shown) is attached to the side edge portion on the side opposite to the corner of the second side wall (21). Further, as shown in FIG. 1, the open ends of the convex-shaped upper and lower frame members (22) and (23) are closed by the end closing members (8), respectively, and both ends of the concave vertical frame member are closed. The parts are butted against the outer ends of these closure members (8) (8). The upper and lower frame members (12) (22) (13) (23) and the vertical frame members, as well as the connecting reinforcing members (5) (5) and the end closing members (8) are all made of, for example, polyvinyl chloride resin. The end closing member (8) is made of resin and is provided with an air vent passage (not shown) of a predetermined size.

Then, the upper and lower frame members (12) (22) (13) (23), both vertical frame members, both inner and outer surface plates (2) (2) that are substantially L-shaped when viewed from above,
When the connection reinforcing member (5) (5) and the end closing member (8) are combined and the hollow portion formed inside thereof is filled with the heat insulating material (3) by injection foaming, the first side wall portion (11) ) Upper and lower frame members (12) (13) on the connecting side ends (12a) (1
3a) and the connecting-side end portions (22a) (23a) of the upper and lower frame members (22) (23) of the second side wall portion (21), the connecting reinforcing member (5) having a substantially L shape when seen from a plane. Since (5) is interposed, the upper and lower frame members (12) are formed by the foaming pressure of the heat insulating material (3).
It is possible to reliably prevent the deformation of the butted portions of (22), (13) and (23), so that the heat insulating material (3) does not leak at all.

5 and 6 show a second embodiment of the present invention. Here, the point different from the case of the first embodiment is the shape of the coupling reinforcing member (16).

That is, as shown in the figure, the connection reinforcing member (16) is
A convex reinforcing member main body (17) having the same cross-sectional shape as the convex upper and lower frame members (12) (22) (13) (23) and having skirts (19) on both side edges, and a reinforcing member. The insertion part (18) consists of the insertion parts (18) and (18) connected to both ends of the main body (17).
Reference numeral (18) is a groove (26) having a U-shaped cross section, which is fitted inside the upper and lower frame members (12) (22) (13) (23) and has a downwardly convex portion (14) fitted to the top thereof. Is provided. Also, the reinforcing member main body (17) and both insertion parts (18)
Upper and lower frame materials (12) (22) (13) (23) between (18)
Is provided with stepped portions (20) (20) to which the ends of are contacted. In addition, engaging edges (17a) (17a) to which the folded edges (2a) (2a) of the surface plates (2) (2) are locked are provided on both side edges of the reinforcing member main body (17). There is.

Further, in the second embodiment, it is substantially L when viewed from the plane.
Inserts (18) (18) on both ends of the shape-shaped connecting reinforcing member (16)
Are respectively fitted inside the connecting ends (12a) (22a) (13a) (23a) of the upper and lower frame members (12) (22) (13) (23), and the upper and lower frame members (12) (22) ( 13) and (23) are connected to each other via connecting reinforcing members (16) (16), and upper and lower frame members (12) (22) (13) (23) and connecting reinforcing members (16).
(16), both vertical frame members, both inner and outer surface plates (2) (2) that are substantially L-shaped when viewed from above, and an end closing member (8) are combined to form a hollow portion formed inside these. A heat insulating material (3) is filled by injection foaming.

Since the other points of the second embodiment are similar to those of the first embodiment, the same components are designated by the same reference numerals in the drawings.

EFFECTS OF THE INVENTION As described above, one of the corner heat insulation panels of the present invention is a corner heat insulation panel including a first side wall portion and a second side wall portion extending at a right angle to the first side wall portion. In the heat insulating panel for corners, a substantially L-shaped connecting reinforcing member is fitted to the connecting side ends of the upper and lower frame members and the connecting side ends of the upper and lower frame members of the second side wall,
The upper and lower frame members of the first and second side wall portions are convex as a whole, and have a downward convex portion for reinforcement having a substantially U-shaped cross section at the center of the top portion thereof, and the folded edge portions of the inner and outer surface plates are provided on both side edge portions. Each of them has a substantially inverted U-shaped engaging edge portion that can be locked, and the coupling reinforcing member is substantially L-shaped when viewed from a plane, and is connected to both sides of a convex portion fitted inside the upper and lower frame members. In addition, a hem portion that is brought into contact with the back surfaces of both surface plates is provided, and a concave groove having a U-shaped cross section is provided in the longitudinal direction at the top of the convex portion to which the downward convex portion of the frame member is fitted. The upper and lower frame members, the both vertical frame members, the inner and outer surface plates that are substantially L-shaped when viewed from above, the connecting reinforcing member and the end closing member are combined, and the heat insulating material is injected and foamed in the hollow portion formed inside these. It is characterized by being filled.

Also, the other corner insulation panel of this invention is
A corner heat insulating panel comprising a first side wall portion and a second side wall portion extending at right angles to the first side wall portion, wherein a connecting side end of the upper and lower frame members of the first side wall portion and an upper and lower frame member of the second side wall portion are formed. A corner heat insulating panel in which a substantially L-shaped connecting reinforcing member when viewed from above is fitted to the connecting side end portion.
And the upper and lower frame members of the second side wall are convex as a whole,
In addition to having a reinforcing downward convex portion having a substantially U-shaped cross section at the center of its top portion, a substantially inverted U-shaped engaging edge portion to which the folded-back edge portions of the inner and outer surface plates are locked is provided at both side edge portions, for connection reinforcement. The member has a convex reinforcing member main body having the same sectional shape as the convex upper and lower frame members and having hem portions on both side edges, and an inserting portion continuous with both end portions of the reinforcing member main body, and the inserting portion is A concave groove having a U-shaped cross section is provided which is fitted inside the upper and lower frame members and at which a downward convex portion of the frame member is fitted, and an end portion of the upper and lower frame members is provided between the reinforcing member main body and both insertion portions. A step portion that is brought into contact with each other is provided, and the insertion portions at both ends of the connecting reinforcing member are fitted inside the connecting end portions of the upper and lower frame members, respectively, and the upper and lower frame members are connected to each other through the connecting reinforcing member. Frame material, connection reinforcing member, both vertical frame materials, inside of approximately L shape when seen from the plane Both face sheets, and are combined end closure, in which the heat insulating material in the hollow portion formed in these inner is filled by injecting foam.

According to this invention, in any of the above cases, it is possible to reliably prevent deformation of the abutting portions of the upper and lower frame members during the injection foaming of the heat insulating material, and to prevent leakage of the heat insulating material. Therefore, the resulting corner insulation panel has high dimensional accuracy and uniform quality. Moreover, it is only necessary to fit the connecting reinforcing member to the connecting ends of the upper and lower frame members, or to insert the insertion portions at both ends of the connecting reinforcing member inside the connecting ends of the upper and lower frame members. Since the welding step of the material end portion can be omitted, there is an effect that it is possible to manufacture the corner heat insulating panel very easily and inexpensively.

[Brief description of drawings]

The drawings show two embodiments of the present invention. Fig. 1 is a plan view of the product of the present invention according to the first embodiment, Fig. 2 is an enlarged sectional view taken along the line II-II in Fig. 1, and Fig. 3 is a prefabricated product. A schematic perspective view of the refrigerator,
FIG. 4 is an enlarged sectional view of an essential part of the product of the present invention shown in FIG. FIG. 5 is a plan view of an exploded state of the product of the present invention of the second embodiment, FIG.
The drawing is an enlarged sectional view taken along the line VI-VI in FIG. (1) …… Insulation panel for corner, (2) …… Surface material,
(2a) (2a) …… Folded edge, (3) …… Insulation material,
(5) ... Reinforcement member for connection, (5a) ... Convex portion, (5b) ...
... hem, (6) ... U-shaped concave groove, (8) ... end closing member, (10) ... refrigerator, (11) (21) ... first and second side wall parts, (12) (13) (22) (23) …… Upper and lower frame members, (12a) (13a) (22a) (23a) …… Connecting end, (1
4) …… Reinforcement downward convex part with a U-shaped cross section, (15) ……
Engagement edge of approximately inverted U shape, (16) …… Connection reinforcing member, (19)
…… Hem, (17) …… Convex reinforcing member body, (18) (1
8) …… Insert part, (20) (20) …… Step, (26) ……
U-shaped cross section groove.

Claims (2)

[Scope of utility model registration request] 1. A corner heat insulating panel comprising a first side wall portion (11) and a second side wall portion (21) extending at a right angle to the first side wall portion (11), wherein upper and lower frame members (12) of the first side wall portion (11). )(13)
To the connection side ends (12a) (13a) and the connection side ends (22a) (23a) of the upper and lower frame members (22) (23) of the second side wall part (21),
A corner heat insulation panel in which connecting reinforcing members (5) (5) having a substantially L shape when viewed from a plane are fitted together,
And upper and lower frame members (12) (22) of the second side wall parts (11) (21)
(13) (23) has a convex shape as a whole, has a downward convex portion (14) for reinforcement having a substantially U-shaped cross section at the center of its top, and has inner and outer surface plates (2) (2) on both side edges. Provided are substantially inverted U-shaped engaging edge portions (15) and (15) to which the folded edge portions (2a) and (2a) are respectively locked, and the connecting reinforcing member (5) is substantially L-shaped when viewed from a plane, Upper and lower frame materials (12) (22) (1
3) Consists of a convex part (5a) fitted inside the (23) and a hem part (5b) which is continuous with both sides of the convex part (5b) and is brought into contact with the back surfaces of both surface plates (2). A cross section U in which the downward convex portion (14) of the frame member is fitted on the top of the portion (5a).
-Shaped concave groove (6) is provided in the length direction, and upper and lower frame members (12)
(22) (13) (23), both vertical frame members, both inner and outer surface plates (2) (2) that are substantially L-shaped when viewed from above, and connecting reinforcing members (5) (5)
And the end closing member (8) are combined, and the heat insulating material (3) is filled by injection foaming in the hollow portion formed inside thereof, to form a corner heat insulating panel. 2. A corner heat insulating panel comprising a first side wall portion (11) and a second side wall portion (21) extending at right angles to the first side wall portion (11), wherein upper and lower frame members (12) of the first side wall portion (11). )(13)
To the connection side ends (12a) (13a) and the connection side ends (22a) (23a) of the upper and lower frame members (22) (23) of the second side wall part (21),
A corner heat insulation panel in which connecting reinforcement members (16) (16) that are substantially L-shaped when viewed from above are fitted together.
And upper and lower frame members (12) (22) of the second side wall parts (11) (21)
(13) (23) has a convex shape as a whole, has a downward convex portion (14) for reinforcement having a substantially U-shaped cross section at the center of its top, and has inner and outer surface plates (2) (2) on both side edges. Substantially inverted U-shaped engaging edges (15) (15) are provided to which the folded-back edges (2a) (2a) are locked, and the connecting reinforcing member (16) is
A convex reinforcing member main body (17) having the same cross-sectional shape as the convex upper and lower frame members (12) (22) (13) (23) and having skirts (19) on both side edges, and a reinforcing member. The insertion part (18) consists of the insertion parts (18) and (18) connected to both ends of the main body (17).
Reference numeral (18) is a groove (26) having a U-shaped cross section, which is fitted inside the upper and lower frame members (12) (22) (13) (23) and has a downwardly convex portion (14) fitted to the top thereof. Is provided, and the stepped portion (where the end portions of the upper and lower frame members (12) (22) (13) (23) are brought into contact with each other between the reinforcing member main body (17) and the both insertion portions (18) (18) ( 20) and (20) are provided, and the insertion portions (18) and (18) at both ends of the connecting reinforcing member (16) are respectively the upper and lower frame members (12) and (2).
2) (13) (23) connecting end (12a) (22a) (13a) (23
It is fitted inside the a) and the upper and lower frame members (12) (22) (1
3) (23) are connected to each other through the connecting reinforcing members (16) (16), and the upper and lower frame members (12) (22) (13) (23), connecting reinforcing members (16) (16), both Vertical frame material, approximately L when viewed from above
The inner and outer surface plates (2) (2) and the end closing member (8) are combined, and the hollow portion formed inside thereof is filled with the heat insulating material (3) by injection foaming. Insulation panel for corners.