JPH10183803A - Hollow panel for forming heat-insulating panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hollow panel, in which manufacturing cost is reduced and productivity is improved, by removing a corner piece. SOLUTION: A frame 3 consists of a pair of upper-lower horizontal frame members 4 and a pair of left-right vertical frame members 5. Each frame member 4, 5 has vertical flat plate sections 11 to both surface plates 2, and air vent grooves 17 opened towards hollow sections and extended over the whole in the longitudinal directions are formed to the plate sections 11. Air in the hollow sections is passed through the air vent grooves 17 of the horizontal frame members 4 at the time of the foam-in-place of a heat-insulating material, and passed from the openings of both end sections of the horizontal frame members 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a hollow panel for forming a heat insulating panel in a prefabricated refrigerator, freezer, food processing room, clean room, constant temperature room and the like.

[0002]

2. Description of the Related Art A hollow panel for forming a heat insulating panel includes two face plates which are arranged at an interval from each other, and a frame which is interposed between the peripheral edges of the two face plates. The foamable heat insulating material is injected and foamed into a hollow portion formed by the face plate and the frame. The frame is disposed at a pair of upper and lower horizontal frame members, a pair of left and right vertical frame members, and four corners. A known corner piece is known (see Japanese Patent Publication No. 4-73703). The corner piece is for injecting air in the hollow portion at the time of heat insulating material injection foaming, is an injection product made of vinyl chloride resin, and has a shape corresponding to the end cross-sectional shape of the horizontal frame member and the vertical frame member, respectively. In addition, a passage for venting air is provided.

Further, as a hollow panel for forming a heat insulating panel to which an electric appliance such as an outlet can be attached, a rectangular tube portion is integrally provided on a frame material, and a hollow portion inside the rectangular tube portion is replaced with a hollow portion for attaching an electric appliance and the like. (See Japanese Utility Model Application Laid-Open No. 4-89093).

[0004]

The above-mentioned conventional hollow panel for forming a heat insulating panel has a problem that the production cost of the corner piece is high and the productivity of the panel is deteriorated due to the number of steps for attaching the corner piece. Further, in a hollow panel for forming a heat insulating panel to which electric appliances and the like can be attached, it is necessary to hollow-mold the frame material in order to provide the rectangular tube portion, and it is difficult to form the frame member and the extrusion die becomes large. There was a problem.

An object of the present invention is to provide a hollow panel for forming a heat-insulating panel which is low in manufacturing cost and excellent in productivity by eliminating corner pieces.

Another object of the present invention is to form a hollow portion for mounting an electric device or the like without forming the frame member by hollow molding.
An object of the present invention is to provide a hollow panel for forming a heat-insulating panel, to which an electric appliance or the like can be attached and which has a low panel manufacturing cost and excellent productivity.

[0007]

SUMMARY OF THE INVENTION A hollow panel for forming a heat insulating panel according to the present invention comprises two face plates spaced apart from each other and a frame interposed between the peripheral edges of the two face plates. In the heat insulation panel forming hollow panel is formed such that the foamable heat insulating material is injected and foamed into the hollow portion formed by the both surface plates and the frame, the frame has a pair of upper and lower horizontal frame members and It consists of a pair of left and right vertical frame members,
Each frame member has an air vent groove extending toward the hollow portion and extending in the entire length direction, and is provided with a flat plate portion perpendicular to both surface plates.

[0008] It is preferable that a protrusion is provided at an open portion of the air vent groove so that hooks provided at the ends of both side walls of a mounting member such as an electric appliance having a U-shaped cross section can be hooked.

[0009]

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

FIGS. 1 to 3 show a hollow panel for forming a heat insulating panel of the present invention. As shown in FIG.
The hollow panel (1) for forming a heat insulating panel is composed of two face plates (2) spaced from each other and a frame interposed between the peripheral portions (2a) of the two face plates (2). (3), and a foamable heat insulating material (7) is injected and foamed into a hollow portion (6) formed by the inner surface of both face plates (2) and the inner surface of the frame (3). Is what it is.

The frame (3) comprises a pair of upper and lower horizontal frame members (4) and a pair of left and right vertical frame members (5) having horizontal end faces. Each of the frame members (4) and (5) is a vinyl chloride resin extruded shape having the same cross-sectional shape.

Each of the frame members (4) and (5) has a flat plate portion (11) perpendicular to the both surface plates (2a) and a pair of surface plate members rising from both edges of the flat plate portion (11). Stop portion (12) and a forked spacer insertion portion (1) rising from the center in the width direction of the flat plate portion (11).
3), each surface plate locking part (12) and bifurcated spacer insertion part (13)
And a pair of air vent groove forming portions (1) provided in the flat plate portion (11) so as to be located between
4), and a pair of butting portions (15) rising from each air vent groove forming portion (14). A projection (16) extending outward in the width direction is provided at an opening edge near the center of the air vent groove forming portion (14).

The end face of the horizontal frame member (4) is vertical, and the vertical frame member (5)
The end faces are horizontal, and the upper and lower end faces of the left and right vertical frame members (5) are brought into contact with the inner surfaces of the left and right ends of the flat plate portion (11) of the horizontal frame member (4).

The surface plate engaging portion (12) has a protruding edge portion inward in the width direction, and the peripheral edge portion (2a) of the surface plate (2) is folded back to form the surface plate engaging portion (12). ). In addition,
Of the left and right edges (2a) of the face plate (2), the upper and lower horizontal frame members (4)
The portion that interferes with the front plate locking portion (12) is cut out.

Each frame member is formed by the air vent groove forming portion (14).
(4) On the inner surface of (5), an air vent groove (17) for bleeding the air in the hollow portion at the time of heat insulating material injection and foaming is formed. That is,
Referring to FIG. 3, the inner surfaces of both face plates (2) and each frame member (4) (5)
Foamed heat insulating material in the hollow part (6) formed by the inner surface of
When (7) is injected and foamed, the air vent grooves (1
7) Since the left and right ends are not closed, the hollow
The air existing in (6) comes out. Meanwhile, foam insulation
Since (7) is liquid and highly viscous at the time of injection, it does not leak out of the air vent groove (17). The number of air vent grooves is not limited to two, but may be one or three or more.

As shown in FIGS. 4 and 5, the hollow panel (1) for forming a heat insulating panel according to the present invention includes a foaming heat insulating material.
Before the injection and foaming of (7), a member (8) for attaching an electric appliance or the like is attached, whereby a hollow portion (9) for attaching an electric appliance or the like can be formed.

The member (8) for mounting an electric appliance or the like is an extruded member made of a vinyl chloride resin having a U-shaped cross section.
a) At the tip, a hook portion (18) directed inward in the width direction to be hooked on the protruding portion (16) of the air vent groove forming portion (14) is provided. The hook (18) is provided with a tapered surface for facilitating the operation of forcibly fitting the hook (18) to the protrusion (16).

Before injecting and foaming the foamable heat insulating material (7), the hooks (1)
When the member (8) for attaching an electric appliance or the like is attached to, for example, the left vertical frame member (5) by hooking the projecting portion (8) on the projecting portion (16), then the foaming heat insulating material (7) is injected and foamed. A rectangular tube portion is formed by a member (8) for mounting an electric appliance or the like having a U-shaped cross section and a central portion of the flat plate portion (11) of the left vertical frame member (5), and the inside of the rectangular tube portion is It becomes a hollow part (9) for mounting electric appliances.
The size of the mounting member (8) for electric appliances etc. should be such that the heat insulating material (7) exists between both side walls (8a) of the mounting member (8) for electric appliances etc. and both surface plates (2). In this way, the heat insulating property of the heat insulating panel is maintained.

A member (8) for mounting an electric appliance or the like and a frame member
(4) (5) are extruded separately from each other, but if they are to be integrally molded, the hollow part for mounting electrical equipment etc. (9)
, The hollow mold is formed and the extrusion die becomes large. On the other hand, the above-mentioned mounting member for electric appliances and the like
(8) and the frame members (4) and (5) are not formed by hollow molding, and their extrusion dies need to be small, and the manufacturing cost of the hollow panel (1) for forming a heat insulating panel is reduced and its productivity is reduced. Will also be excellent.

When the electric appliance mounting member (8) is mounted on the frame members (4) and (5), the electric appliance mounting member (8) is connected to the flat members of the frame members (4) and (5). The part (11) may be forcibly inserted from a direction perpendicular to the inner surface or may be slid, and the hook (18) and the protruding part (16) can be inserted or slid in such a range as possible. Can be variously changed.

In order to assemble a clean room using a plurality of heat insulating panels, for example, some of the hollow panels (1) for forming the whole heat insulating panel are provided with members for mounting electric appliances and the like.
Attach (8). After completion of the injection foaming, FIG.
As shown in (1), a hole is made through one of the surface plate (2), the heat insulating material (7) layer, and one side wall (8a) of the member (8) for attaching an electric appliance or the like. And the electric wire (20) is passed through the inside of the hollow portion and taken out from a ceiling panel (not shown) or the like so as not to deteriorate the appearance. In this way, the outlet and its electric wire can be mounted at required positions without exposing them. In addition, the hollow part (9) for mounting electric appliances and the like can of course be used for gas piping and other piping and wiring.
In addition, electric appliances and the like can be attached from outside or inside the heat insulating panel.

As shown in FIG. 5, a spacer (10) is arranged at the connection between the two panels (1). Spacer (10)
Has a horizontal cross-section substantially cross-shaped, and both ends of a horizontal cross-section I-shaped portion (21) extending in the width direction of the panel (1) are connected to the abutting portions (15) of the horizontal frame members (4) of the two panels. It is interposed between them. Then, the left projecting portion (2) is provided at the center of the width of the I-shaped portion (21).
2) and a right protrusion (23) are provided, and both protrusions (22) (23)
The semicircular portions (22a) and (23a) of horizontal cross section provided at the tips of the two panels are tightly inserted into the forked spacer insertion portions (13) of the horizontal frame members (4) of the two panels. In this way, the space between the panels (1) is finely adjusted by the spacer (10), and the space between the folded edges (2a) of the surface plates (2) of both panels is filled,
The panels (1) are connected without gaps, and a clean room or the like is assembled.

[0023]

According to the hollow panel for forming a heat insulating panel of the present invention, the frame is composed of a pair of upper and lower horizontal frame members and a pair of left and right vertical frame members, each frame member being open toward the hollow portion and having a length. Since it has an air vent groove extending in the entire direction and has a flat plate portion perpendicular to both surface plates, for example, if the left and right vertical frame members are interposed between the ends of the upper and lower horizontal frame members, the heat insulating material injection foaming In the meantime, the air in the hollow part passes through the air vent groove of the horizontal frame member and escapes from the openings at both ends thereof, so that it is possible to eliminate the corner piece for extracting the air which was conventionally required, so The cost is low and the productivity is excellent.

If the opening of the air vent groove is provided with a projecting portion on which hooks provided at the ends of both side walls of a mounting member such as an electric appliance having a U-shaped cross section are hooked, the frame member is hollow. It is possible to provide a hollow part for mounting electric appliances without forming, so that electric appliances such as outlets can be mounted. Moreover, the production cost is low and the hollow panel for forming heat insulating panels is excellent in productivity. Is obtained.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a main part of a hollow panel for forming a heat insulating panel according to the present invention.

FIG. 2 is a side view showing a corner portion of the hollow panel.

FIG. 3 is a sectional view taken along the line III-III of FIG. 2;

FIG. 4 is a perspective view showing a main part when attaching an electric appliance or the like to the hollow panel for forming a heat insulating panel according to the present invention.

FIG. 5 is a horizontal sectional view showing an example of connecting the heat insulating panel forming hollow panels according to the present invention.

[Explanation of symbols]

 (1) Hollow panel for forming thermal insulation panel (2) Surface plate (2a) Peripheral edge (3) Frame (4) Horizontal frame member (5) Vertical frame member (6) Hollow part (7) Foamable insulation (8) (8a) Side wall (16) Projection (17) Vent groove (18) Hook

Claims (2)

[Claims] 1. A display device comprising two face plates (2) arranged at a distance from each other and a frame (3) interposed between the peripheral portions (2a) of the both face plates (2). With both surface plates (2) and frame
(3) In the hollow part (6) formed by
In the hollow panel (1) for forming a heat insulating panel, the frame (3) has a pair of upper and lower horizontal frame members.
(4) and a pair of left and right vertical frame members (5).
(4) and (5) have air vent grooves (17) which open toward the hollow part (6) and extend over the entire length.
(2) A hollow panel for forming a heat insulating panel, comprising a flat plate portion (11) perpendicular to (2). 2. A hook (18) provided at the end of both side walls (8a) of a member (8) for mounting an electric appliance or the like having a U-shaped cross section is hooked on an opening of the air vent groove (17). The hollow panel for forming a heat insulating panel according to claim 1, further comprising a projection (16).