JPH083916Y2 - Insulation panel - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat insulating panel used in a prefabricated refrigerator / freezer, a clean room, or the like.

[0002]

2. Description of the Related Art As this type of heat insulation panel, for example,
As shown in FIG. 5, a pair of surface plates (21) and (22), which are opposed to each other at a predetermined interval, are interposed between the surface plates (21) and (22) and both surface plates are disposed. (21) is composed of a frame (23) having fixed peripheral edges, and the frame (23) has a first frame member (24) having a panel fitting recess (26) extending in the longitudinal direction on the outer surface. , First
Recesses (2) that can be fitted into the panel fitting protrusions (26) of the frame member (24)
It has at least one corner part formed by arranging the second frame member (25) having 7) on the outer surface at a right angle and is surrounded by both surface plates (21) (22) and the frame (23). There was a heat insulating panel in which foamable heat insulating material (A) was injected and foamed in the hollow part, and a heat insulating material leak prevention member (28) was interposed inside the corner part of the frame (23). .

Further, as shown in FIG. 6, a pair of surface plates (31) and (32), which are opposed to each other at a predetermined interval, are interposed between the surface plates (31) and (32). And both face plates (31) (32)
And a frame (33) having a fixed peripheral edge, and the frame (33) has a panel fitting recess (36) extending in the lengthwise direction on the outer surface.
Frame member (34) and panel fitting recess (36) of the first frame member (34)
Has at least one corner portion formed by arranging at right angles a second frame member (35) having a convex portion (37) that can be fitted to the outer surface, and both surface plates (31) (32) and the frame ( 33) A heat insulation panel in which a foam insulation material is injected and foamed in the hollow part surrounded by
It is also known that the first frame member (34) and the second frame member (35) are connected to each other through a corner piece (38) at the corner portion of the frame (33).

[0004]

However, the above-mentioned conventional heat insulating panel has the following problems.
That is, in the heat insulation panel shown in FIG. 5, since the first and second frame members (24) and (25) have complicated cross-sectional shapes formed by bending thin plates, they are arranged at right angles. A gap will be created everywhere in the corners of both frame members (24) and (25) that have been installed, and if a heat insulating material leak prevention member (28) is placed inside the corners, a complete gap will be created. Cannot be closed, and therefore both face plates (2
1) There is a problem that the foamed heat insulating material (A) injected and foamed into the hollow portion surrounded by the (22) and the frame (23) leaks from the gap.

Further, in the heat insulation panel shown in FIG. 6,
By using the corner piece (38), it is possible to prevent leakage of heat insulating material from the corners of both frame members (34) (35), but a mold for molding the corner piece (38). In addition to increasing the cost, the management cost will increase as the number of parts increases. Further, since the cost of the mold for molding the corner piece (38) is high, there is a drawback that it is difficult to slightly modify or change the shape of the frame member.

An object of the present invention is to provide a heat insulating panel that solves the above problems all at once.

[0007]

In order to achieve the above-mentioned object, a heat insulating panel according to the present invention includes a pair of face plates arranged facing each other at a predetermined distance, and between the two face plates. The frame includes an intervening frame having fixed peripheral edges of both surface plates, and the frame has a first frame member having a panel fitting concave portion or an uneven portion on the outer surface extending in the length direction, and a panel frame fitting member of the first frame member. It is provided with at least one corner portion formed by arranging at right angles a second frame member having an outer surface having a convex portion or a concave-convex portion which can be fitted into the concave portion or the concave-convex portion, and is surrounded by both surface plates and a frame. In the heat insulation panel in which the foamable heat insulating material is injected and foamed in the hollow portion, the first frame member has a flat inner surface, and the second frame member is located inward of one end of the first frame member. It has a cross-sectional shape that is provided over its entire width. The inner surface of the first frame member and the portion of the end surface of the second frame member located inside the one end of the first frame member at the corner portions of the first and second frame members arranged at right angles are closely contacted with each other. It is what

In the above, the first and second frame members are
Generally, it is formed of a synthetic resin, but it is preferably formed of a foamed vinyl chloride resin or a foamed polystyrene resin because it needs to have a certain thickness.

[0009]

A cross-sectional shape in which the first frame member has a flat inner surface, and the second frame member has a portion located inward of one end of the first frame member over the entire width thereof. And a portion located inward of one end of the first frame member on the inner surface of the first frame member and the end surface of the second frame member at the corner portions of the first and second frame members arranged at right angles. Are closely contacted with each other, so that there is no gap at the corner portion.

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIGS. 1 and 2, the heat insulating panel according to the present invention has a pair of metal surface plates (1) and (2) arranged facing each other at a predetermined interval, and both surface plates (1). ) (2) It is composed of a frame (3) that is interposed between the two surface plates (1) and (2) and has a fixed peripheral edge, and that both surface plates (1) (2) and the frame (3) are The foamed polyurethane resin heat insulating material (A) is injected and foamed in the enclosed hollow portion.

The frame (3) is composed of a pair of frame members in each of the vertical and horizontal directions,
Left vertical frame member extends in the lengthwise direction and is used for panel fitting
(6) is constituted by the first frame member (4) having (7) on the outer surface,
Both the upper and lower horizontal frame members and the right vertical frame member can be fitted into the panel fitting concave-convex portions (6) (7) of the first frame member (4) (9) (10)
And a second frame member (5) having an outer surface.
Therefore, there are two corners, where the first frame member (4) and the second frame member (5) are arranged at a right angle, in the upper left and lower left corners of the frame (3). Each of the frame members (4) and (5) is made of expanded vinyl chloride resin. Of the frame members, the lower horizontal frame member and the right vertical frame member are not shown.

The first frame member (4) constituting the left vertical frame member is
As shown in FIG. 3, the cross-section is a substantially inverted E shape having an outward opening, and the outer surface thereof has a trapezoidal panel-fitting protrusion of a trapezoidal cross-section with an isosceles trapezoid extending in the longitudinal direction at the center of the width ( 7), and on both sides of the convex portion (7), there are respectively substantially U-shaped panel fitting concave portions (6) (6) which extend in the length direction and whose cross section is open outward. Inner surface (4a) of the first frame member (4)
Is flat. Surface plate engaging portions (8) (8) protruding outward are formed on both side edges of the first frame member (4), and these surface plate engaging portions (8) (8) are It is locked to the inner folds (1a) and (2a) formed on the left side edges of both surface plates (1) and (2) respectively, and the first edge is attached to the left side edges of both surface plates (1) and (2). Frame member (4)
Has been fixed. The upper end of the first frame member (4) is
It is located at the same level as the upper edges of (1) and (2).

The second frame member (5) constituting the upper horizontal frame member is
As shown in FIG. 4, it has a substantially M-shaped cross section, and a recessed portion (11) extending in the length direction and recessed inward is formed at the center of its width, and both side edges are formed. , A bent portion (12) (12) having an L-shaped cross section is formed in which the base end side is bent inward and the tip end side is bent toward the inner surface of each face plate (1) (2). There is. The second part frame member (5) has a panel fitting convex part (7) of the first frame member (4) at the center of the width on the outer surface thereof.
It has a panel fitting recess (9) that can be fitted to
On both sides of the concave portion (9), there are panel fitting convex portions (10) and (10) which can be fitted into the panel fitting concave portions (6) and (6) of the first frame member (4). Outer protruding surface plate locking portions (13) (13) are formed on both side edges of the second frame member (5), and these surface plate locking portions (13) (13) are formed. , The inner folds (1a) (2a) formed on the upper edges of both surface plates (1) and (2), respectively, and Two frame members (5) are fixed. The second frame member (5) has such a wall thickness that the portion located inside the upper end of the first frame member (4) shown by the broken line in FIG. 4 is provided over the entire width. There is.

Then, the first frame member (left vertical frame member) (4) and the second frame member (upper horizontal frame member) (5) having the above structure are arranged at right angles, and both frame members (4 ) Located inside the inner surface (4a) of the first frame member (4) and the left end surface (5a) of the second frame member (5) at the corner of (5), rather than the upper end of the first frame member (4). The part to be closed is closely contacted so that there is no gap between them.

The cross-sectional shapes of the first and second frame members are not limited to those in the above embodiment, but can be changed as appropriate.

[0017]

According to the heat insulating panel of the present invention, as described above, the inner surface of the first frame member and the first frame member at the corner portions of the first and second frame members arranged at right angles and having different cross-sectional shapes from each other are formed. 2 The end surface of the frame member is closely contacted with a portion located inward of one end of the first frame member so as not to create a gap between them, and is surrounded by both surface plates and the frame. Since it is possible to reliably prevent the foamed heat insulating material injected into the hollow part from leaking from the above corners, it is not necessary to use a corner piece or a heat insulating material leakage prevention member as in the past, and the manufacturing cost is low. In addition to being able to suppress, the number of parts is reduced and management becomes easier.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view showing a main part of a heat insulating panel according to an embodiment of the present invention.

FIG. 2 is a partially cutaway front view showing a main part of a heat insulating panel according to an embodiment of the present invention.

FIG. 3 is a sectional view taken along the line III-III in FIG.

FIG. 4 is a sectional view taken along line IV-IV in FIG.

FIG. 5 is a partially cutaway perspective view showing a conventional heat insulation panel.

FIG. 6 is an exploded perspective view showing another conventional heat insulating panel.

[Explanation of symbols]

 (1) (2) …… Surface plate (3) …… Frame (4) …… First frame member (4a) …… (Inside of first frame member) (5) …… Second frame member (5a) ...... End face (of convex frame member) (6) …… Panel fitting concave part (of first frame member) (7) …… (Panel fitting convex part of first frame member) (9) …… (No. Panel fitting recessed part (2 frame member) (10) ... Panel fitting projected part (A) (2nd frame member) ... Foaming heat insulating material

Claims (1)

[Scope of utility model registration request] 1. A pair of surface plates (1) and (2) which are arranged facing each other at a predetermined interval, and both surface plates (1) and (2) which are interposed between both surface plates (1) and (2). ) (2) is composed of a frame (3) having a fixed peripheral edge, and the frame (3) is a first frame member having a panel fitting concave portion or concavo-convex portion (6) (7) extending in the length direction on the outer surface. A second frame member having (4) and a convex portion or a concave-convex portion (9) (10) capable of being fitted in the panel fitting concave portion or the concave-convex portion (6) (7) of the first frame member (4). (5) is provided with at least one corner portion which is arranged at a right angle, and the foamable heat insulating material (A) is provided in the hollow portion surrounded by both surface plates (1) and (2) and the frame (3). In a heat-insulating panel in which is injected and foamed, the first frame member (4) has a flat inner surface.
(4a), the second frame member (5) has a cross-sectional shape such that a portion located inside one end of the first frame member (4) is provided over the entire width thereof. And the inner surface (4a) of the first frame member (4) and the end surface (5a) of the second frame member (5) at the corners of the first and second frame members (4) and (5) arranged at right angles. The portion located inward of one end of the first frame member (4) of
Insulated panels that are closely attached.