JP2889541B2 - Insulation panel manufacturing method and insulation panel - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a panel body formed by filling a heat insulating material between two metal shells, and has a fitting projection at one end and a fitting projection at the other end. Is formed at the at least one end of the panel main body, and at the one end of the panel body, a recessed step portion such as a nailing portion is formed which is lower by one step with respect to the upper surface of the metal cover on the front side. Regarding the panel manufacturing method and the heat insulating panel, in detail, the side end surface of the heat insulating material is protected, the air-tightness and water-tightness at both ends of the connection point are improved, and a simple press device is used for this configuration. The present invention relates to a technology that is intended to be easily performed.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 9 (a), a heat insulating material 3 is filled between two metal outer skins 1 and 2, and a fitting projection 4 is provided at one side edge of a heat insulating panel Aa. On the other hand, in the heat insulating panel Aa in which the fitting concave portion 5 in which the fitting convex portion 4 is fitted on the other side edge portion is surrounded by the metal shells 1 and 2, the fitting convex portion 4 and the fitting concave portion 5 are formed. Are fitted to each other to achieve watertightness.

[0003]

However, in such a structure, as shown in FIGS. 8 (a) to 8 (d), a connection edge is different at a side edge different from the uneven fitting edge portion. End pieces 6a are formed by bending, and these end pieces 6a for connection are connected by connecting means as shown in FIG. 9 (b). In the figure, b is a backup material, c
Is a caulking agent and d is a heat insulating material.

As shown in FIG. 8 (c), both ends of the end piece 6a for connection are cut and removed as shown in FIG. 8 (c). 4
In addition, the edge of the fitting concave portion 5 is cut off from the metal outer skin 1, and rainwater easily penetrates at both ends of the end face piece 6a for connection, and the heat insulating material 3 in the fitting convex portion 4 and the fitting concave portion 5 is removed. It deteriorated early, and it was difficult to obtain sufficient airtightness and watertightness.

In other words, the fitting protrusion 4 and the fitting recess 5 are substantially surrounded by the metal shell 1 to improve watertightness, while the uneven fitting edge is adjacent to the side edge. It is difficult to obtain air-tightness and water-tightness, and the original function of the heat insulating panel Aa, which substantially surrounds the fitting convex portion 4 and the fitting concave portion 5 with the metal shell 1, cannot be sufficiently exhibited. The present invention has been made in view of such a problem, and includes the fitting protrusion and the fitting recess at both side edges of the panel adjacent to the edge where the fitting protrusion and the fitting recess are formed. Production of heat-insulating panels that can protect the side end faces of the heat-insulated material, and that provide sufficient airtightness and water-tightness at the connection points, and that can be easily configured with a simple press device in such a configuration. It is an object to provide a method and an insulating panel.

[0006]

According to the first aspect of the present invention, a fitting protrusion 4 is provided at one end of a panel body formed by filling a heat insulating material 3 between two metal outer covers 1 and 2. However, at the other end, a fitting concave portion 5 into which the fitting convex portion 4 is fitted is formed, and at least at one end of the panel main body, a nail is lowered by one step with respect to the upper surface of the metal cover 1 on the front surface side. A method for manufacturing a heat insulating panel having a recessed stepped portion 9 such as a hitting portion 7, wherein the recessed stepped portion 9 is formed at both side ends of the panel body adjacent to the fitting protrusion 4 and the fitting recess 5. In addition, a cut L is made near the ridge line between the metal outer skin 1 on the surface and the vertical wall 9a forming the recessed step 9 at this extended portion. The part is press-molded, and the end piece 6 facing the side end face of the heat insulating material 3 and the metal from the lower end of this end piece 6 A connection piece 21 that is substantially parallel to the skin 1 is formed. At the cut L, the end portion 21b and the center portion 21a of the connection piece 21 are separated, and the end portion 21b and the center portion are separated. 21a and the end portion 21b and the central portion 21a are substantially flush with each other.

According to the second aspect of the present invention, together with the press forming of the connecting piece 21, the panel main body side end piece 6a and the recessed step side end piece 6b of the end face piece 6 are press formed substantially flush. It is characterized by the following. Claim 3
In the invention according to the invention, the heat insulating material 3 is provided between the two metal skins 1 and 2.
A fitting projection 4 is formed at one end of the panel main body formed by filling with a fitting recess 5, and a fitting recess 5 is formed at the other end of the panel main body. A heat insulating panel having a recessed step portion 9 such as a nailing portion 7 which is one step lower than the upper surface of the metal cover 1 on the front side at the side end portion, wherein the fitting protrusion 4 of the panel body and At both end portions adjacent to the fitting concave portion 5, the metal outer skin 1, which is the surface side in the construction state, is bent, and the end piece 6 facing the side end face of the heat insulating material 3 and the metal on the surface from the lower end of the end piece 6. Outer skin 1
Is formed near the ridgeline between the metal outer skin 1 on the surface and the vertical wall 9a forming the recessed step 9 at the end of the connection piece 21 on the side of the recessed step 9. Cut L
In this case, the end portion 21b and the center portion 21a of the connection piece 21 are separated from each other, and the end portion 21b and the center portion 21a overlap with each other to form the end portion 21b and the center portion 21a. It is characterized by being substantially flush.

According to a fourth aspect of the present invention, the end piece 6a on the panel body side and the end piece 6b on the recessed step portion side of the end piece 6 are substantially flush with each other. In the configuration of the first aspect, a sufficient watertightness is provided at the concave / convex fitting portion between the fitting convex portion 4 and the fitting concave portion 5,
The side end surface of the heat insulating material 3 is covered with the recessed step portion side end surface piece 6b on the recessed step portion 9 side, and the panel body portion is
The end piece 6 covering the side end face of the heat insulating material 3 forms a connecting piece 21 from the end face piece 6 covering the side end face of the heat insulating material 3 while being covered with the panel body side end face piece 6a.
The connection piece 21 can be easily used to connect with the adjacent heat insulating panel A, and the connection piece 21 can also be used as a joint material.
Can be connected well.

In addition, in the extended portion, a cut L is made near the ridgeline between the metal outer skin 1 on the surface and the vertical wall 9a forming the recessed step 9, and then the extended portion is press-formed to form the extended portion. The vertical wall 9a at the protruding portion is extended substantially horizontally, and the end portion 21b of the connection piece 21 and the center portion 21a of the connection piece 21 overlap with each other.
The flattening of the vertical wall 9a in the recessed step 9 can be easily performed, and the press device can be downsized.

In the structure of the second aspect, the cut L is formed as in the first aspect of the invention, and the end portion 21b and the center portion 21a are overlapped to form the vertical wall 9 on one side of the end face. Flattening can be performed with less load, and the press device can be downsized in this respect as well. In the configuration of the third aspect, the side end surface of the heat insulating material 3 is covered on the side of the recessed step 9 with the recessed step side end piece 6b, and the panel main body part is the panel body side end surface piece 6a. The connection piece 21 extends from the end face piece 6 covering the side end face of the heat insulating material 3 substantially parallel to the metal outer skin 1 of the surface, while being able to sufficiently protect the side end face of the heat insulating material 3. The connection piece 21 can be easily connected to the adjacent heat insulating panel A using the connection piece 21 and the connection piece 2
1 can also be used as a joint material, and the insulation panels A, A can be connected well.

In addition, a cut L is made near the ridgeline between the metal outer skin 1 on the surface and the vertical wall 9a forming the recessed step 9, and the extended portion is press-formed. Is extended substantially horizontally, the end portion 21b of the connection piece 21 and the center portion 21a of the connection piece 21 overlap, and the vertical wall 9a of the recessed step 9 is set by setting the cut L position. Can be easily flattened, and the press device can be downsized. Further, by forming the cut L and overlapping the end portion 21b and the center portion 21a, the vertical wall 9a on the end face piece 6 can be flattened with a small load, and in this respect, the press device can be downsized. it can.

According to the fourth aspect of the present invention, the notch L is formed as in the third aspect, and the end portion 21b and the center portion 21a are overlapped with each other to form the vertical wall on the end piece 6 side. 9a can be flattened with a small load, and the press device can be downsized also in this regard.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a perspective view of an end portion of the front metal jacket 1 of the heat insulating panel A, and FIG. 2 is a diagram illustrating a pressing process of the front metal jacket 1. FIG. 4 is a cross-sectional view showing the heat insulating panel A and a connection state thereof. Insulation panel A
A fitting convex outer skin portion 4a and a fitting concave outer skin portion 5a are formed by roll forming at both ends of the upper and lower metal outer shells 1 and 2 sent out by the feeding device, and between these two metal outer shells 1 and 2. For example, a rock wool material as the heat insulating material 3 is loaded. The two metal shells 1 and 2 have a slight gap formed in both the fitting projection 4 and the fitting recess 5 so as to avoid heat transfer between the two metal shells 1 and 2. I have to.

On the side of the fitting recess 5, the recessed step 9 is lowered by one step.
The nailing portion 7 is formed, and a receiving portion 9b is formed slightly higher than the nailing portion 7 and slightly lower than the nailing portion 7,
The receiving portion 9b is slightly lower than the front surface 1a. Thus, the recessed step 9 is formed on the side of the fitting recess 5 of the heat insulating panel A. A cover piece 8 extends to the fitting protrusion 4 side, and when the fitting protrusion 4 and the fitting recess 5 are fitted to each other, the cover piece 8
At the receiving portion 9b so as to cover the nailing portion 7.

At both side edges of the panel adjacent to the edge where the fitting projections 4 and the fitting recesses 5 are formed, as shown in FIG. The heat insulating material 3 and the other metal skin 2 are cut off,
The remaining metal sheath 1 is press-formed and bent so as to face the side end surface of the heat insulating material 3 to form an end piece 6.
Are extended substantially in parallel. Hereinafter, the pressing process of the end piece 6 and the connection piece 21 will be described.

As shown in FIG. 2 (a), at both ends adjacent to the fitting projection 4 and the fitting recess 5 of the panel body,
The metal skin 1 on the surface including the recessed step 9 is extended. In this extended portion, as shown in FIG. 3B, a cut L is made at or near the ridge portion between the metal outer skin 1 on the surface and the vertical wall 9a forming the recessed stepped portion 9. As shown in c), a cutout 11 is made at the nailed portion 7 of the extended portion and cut out. Then, as shown in FIG.
After the receiving die 12 is raised and the pressing die 13 is lowered, and the pressing die 13 is lowered to the lowermost end, the pressing die 13 is moved and raised in the direction of arrow A to form the end face piece 6.

In this case, at the cut L, the end portion 21b and the center portion 21a of the connection piece 21 are separated from each other, and the end portion 21b is connected to the center portion 21a.
End portion 21b and central portion 21a
And it becomes almost flush. 1 indicates a portion where the vertical wall 9a is crushed by press molding, and a hatched portion indicated by Y in FIG. 1 indicates a step between the receiving portion 9b and the nailing portion 7. Indicates a crushed portion.

That is, a notch L is formed near the ridge line between the metal outer skin 1 on the surface and the vertical wall 9a forming the recessed step 9, and then the extended portion is press-formed, so that the vertical wall at the extended portion is formed. 9a is extended substantially horizontally, the end portion 21b of the connection piece 21 overlaps the central portion 21a of the connection piece 21, and the vertical position of the recessed step 9 is determined by setting the position of the cut L. The wall 9a can be easily flattened, and the press device can be downsized.

By the way, in the end face piece 6, the X in FIG.
The hatched portion indicated by the portion indicates the portion where the vertical wall 9a portion was crushed by press molding, and the hatched portion indicated by the Y portion in FIG. 1 indicates that the step between the receiving portion 9b and the nailing portion 7 was crushed. The part is shown. In this way, in the extension part, the surface of the metal outer skin 1
A notch L is formed near the ridgeline between the inner wall and the vertical wall 9 a forming the recessed step 9, and then the extended portion is press-formed to form an end piece 6 facing the side end face of the heat insulating material 3 and this end piece 6. A connection piece 21 is formed from a lower end of the connection piece 21 so as to be substantially parallel to the metal outer skin 1 on the surface.
1b and the center portion 21a are separated from each other, and the end portion 21b overlaps the center portion 21a so that the end portion 21b and the center portion 21a are substantially flush with each other. A sufficient watertightness is provided at the concave / convex fitting portion between the fitting convex portion 4 and the fitting concave portion 5, and the side end surface of the heat insulating material 3 has a concave step portion side end surface piece on the concave step portion 9 side. The panel body portion is covered with the portion 6b, and the panel body side end surface piece 6
a, the connection piece 21 extends from the end piece 6 covering the side end face of the heat insulating material 3 substantially parallel to the metal outer skin 1 of the surface while being able to sufficiently protect the side end face of the heat insulating material 3. The connection piece 21 can be easily connected to the adjacent heat insulating panel A using the connection piece 21 and the connection piece 21 can also be used as a joint material, so that the heat insulation panels A and A can be connected well. In addition, in the extended portion, a cut L is made near the ridgeline between the metal outer skin 1 on the surface and the vertical wall 9a forming the recessed step 9, and then the extended portion is press-formed, so that the extended portion is press-formed. The vertical wall 9a extends substantially horizontally, and the end portion 21b of the connection piece 21 overlaps the central portion 21a of the connection piece 21. When the cut L is formed, the recessed step 9 is formed. In this case, the vertical wall 9a can be easily flattened, and the press device can be downsized.

The heat insulating panels A, A have the right end in FIG. 4 as the upper part, and the lower fitting projection 4 is fitted into the upper fitting recess 5 and is connected via the packing P. Because For example, as shown in FIG. 5, the connection on the connection piece 6 side is performed by vertically connecting the heat insulation panels A, A in the left-right direction. In this case, the connection pieces 21 and 21 are used as backup materials. The caulking agent Z is filled.

By the way, as shown in FIG. 3, the recessed step 9 does not exist at the connection piece 21 on the side opposite to the side where the recessed step 9 is formed of the heat insulating panel A. The end piece 6 and the connection piece 21 are formed into an L-shaped cross section. In the embodiment, a gap is formed between the heat insulating material 3 and the end piece 6 depending on the shape of the receiving mold 12. However, by changing the shape of the receiving mold 12, the heat insulating material 3 and the end piece 6 are formed. May be eliminated.

In the embodiment, the end portion 21b overlaps the center portion 21a so that the end portion 21b and the center portion 21a are substantially flush.
The end portion 21b may overlap below the central portion 21a.

[0023]

According to the first aspect of the present invention, a sufficient watertightness is provided at the concave-convex fitting portion between the fitting convex portion and the fitting concave portion, and the side end surface of the heat insulating material is located on the side of the concave step portion. Is covered by the recessed step side end face piece, and the panel main body part is covered by the panel body side end face piece, so that the side end face of the heat insulating material can be sufficiently protected. From the end piece that covers the, the connecting piece extends almost parallel to the metal skin on the surface,
There is an advantage that the connection piece can be easily connected to an adjacent heat insulation panel by using the connection piece and the connection piece can also be used as a joint material, so that the connection of the heat insulation panel can be performed well.

In addition, in the extended portion, a cut is made near the ridgeline between the metal outer surface and the vertical wall forming the recessed step, and then the extended portion is press-formed. Is extended substantially horizontally, and the end side portion of the connection piece and the center side portion of the connection piece overlap, and the flattening of the vertical wall at the recessed step portion can be easily performed by setting the cut forming position. In addition, there is an advantage that the press device can be downsized. Furthermore, by forming a cut and overlapping the end portion and the center portion, the vertical wall on one side of the end face can be flattened with a small load, and in this regard, there is an advantage that the press device can be downsized.

According to the second aspect of the present invention, since the panel main body side end piece and the recessed step side end piece on the end face piece are press-formed substantially flush with the press forming of the extension part. By forming a cut as in the invention of the above and overlapping the end portion and the central portion, the vertical wall on one side of the end face can be flattened with a small load, and in this respect, the press device can be downsized. There is.

According to the third aspect of the present invention, the side end surface of the heat insulating material is covered with a recessed step portion side end portion on the recessed step side, and the panel body portion is covered with the panel body side end surface portion. The connection piece extends from the end piece covering the side end face of the heat insulating material substantially in parallel with the surface of the metal sheath, while being able to sufficiently protect the side end face of the heat insulating material. The advantage is that the connection with the adjacent heat-insulating panel can be easily performed by using the joint piece, and the connection piece can also be used as a joint material, so that the heat-insulating panel can be connected well.

In addition, a cut is made near the ridgeline between the surface of the metal outer skin and the vertical wall forming the recessed step in the extended portion, and the extended portion is press-formed, so that the vertical wall in the extended portion is formed. Is extended substantially horizontally, and the end side portion of the connection piece and the center side portion of the connection piece overlap, and the flattening of the vertical wall at the recessed step portion can be easily performed by setting the cut forming position. In addition, there is an advantage that the press device can be downsized.
Further, by forming a cut and overlapping the end portion and the center portion, the vertical wall on one side of the end face can be flattened with a small load, and in this regard, there is an advantage that the press device can be downsized.

According to the fourth aspect of the present invention, the panel body-side end piece and the recessed step-side end face piece of the end piece are press-formed substantially flush with each other. By forming the cut and overlapping the end portion and the center portion, the vertical wall on one side of the end face can be flattened with a small load, and in this respect, there is an advantage that the press device can be downsized.

[Brief description of the drawings]

FIG. 1 is a partial perspective view from the front side of a metal outer skin of a front surface of an embodiment of a heat insulating panel of the present invention.

FIGS. 2A, 2B, 2C, and 2D are explanatory views showing manufacturing steps.

FIG. 3 is a partial perspective view.

FIG. 4 is a partially omitted cross-sectional view showing a heat insulating panel and a connection state thereof.

FIG. 5 is a sectional view of a construction state.

FIG. 6 is an explanatory view showing a pressing step.

FIG. 7 is a perspective view of the same working state.

8 (a), 8 (b) and 8 (c) are process diagrams showing a conventional example of bending a connecting piece, and FIG. 8 (d) is a schematic sectional view.

9A is a cross-sectional view of a conventional heat insulation panel with a part thereof omitted, and FIG. 9B is a cross-sectional view showing a connection state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Metal outer skin 2 Metal outer cover 3 Heat insulation material 4 Fitting convex part 5 Fitting concave part 6 End piece 7 Nail hitting part 9 Recessed step L Cut 21 Connecting piece 21a Central part 21b End part

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) E04B 1/80 E04C 2/26 B32B 15/08

Claims (4)

(57) [Claims] 1. A fitting in which a fitting protrusion is fitted to one end of a panel body formed by filling a heat insulating material between two metal outer skins, and a fitting protrusion is fitted to the other end. A method for manufacturing a heat-insulating panel in which a concave portion is formed and a recessed step portion such as a nailing portion is formed at least at one end of the panel main body at a level lower than the upper surface of the metal outer skin on the front surface side. Then, at both end portions adjacent to the fitting convex portion and the fitting concave portion of the panel main body, the metal outer surface of the surface including the concave step is extended, and the metal outer surface of the surface is recessed at the extended portion. A cut is made in the vicinity of the ridge line with the vertical wall forming the step portion, and then the extended portion is press-formed, and the end piece facing the side end face of the heat insulating material and the metal shell on the surface from the lower end of the end piece are substantially formed. Parallel connecting pieces are formed, and at the cuts, the end side portions and the central side portion of the connecting pieces are formed. A method for manufacturing a heat-insulating panel, comprising separating an end portion and a center portion from each other, and making the end portion and the center portion substantially flush with each other. 2. The press-forming of the connection piece and the press-forming of the panel-body-side end piece and the recessed-step-side end piece in the end piece are substantially flush with each other.
A method for manufacturing the heat insulating panel according to the above. 3. A fitting in which a fitting protrusion is fitted to one end of a panel body formed by filling a heat insulating material between two metal outer skins, and a fitting protrusion is fitted to the other end. A heat insulating panel in which a recess is formed and a recessed step portion such as a nailing portion is formed at one of the fitting convex portion or the fitting concave portion, which is lower by one step with respect to the upper surface of the metal skin on the front surface, At both end portions adjacent to the fitting convex portion and the fitting concave portion of the panel main body, the metal outer skin which is the surface side in the construction state is bent and the end piece facing the side end face of the heat insulating material and the lower end of this end piece are A connecting piece that is substantially parallel to the surface metal outer skin is formed, and a cut is made near the ridgeline between the surface metal outer skin and the vertical wall forming the concave step at the end of the connecting piece on the side of the concave step. The end portion and the center portion of the connecting piece are separated from each other, and the end portion and the center are separated. A heat insulating panel, wherein an end side portion and a central portion side are substantially flush with each other so as to overlap with a portion side portion. 4. The heat insulating panel according to claim 3, wherein the end piece of the panel main body side and the end face piece of the recessed step portion are substantially flush with each other.