JP4351549B2 - Exterior wall panel structure and construction method - Google Patents

Description

The present invention relates to an outer wall panel structure capable of easily connecting an outer wall panel disposed adjacent to an outer wall of a building such as a house.

Conventionally, an outer wall panel structure as shown in FIGS. 11 and 12 is known (see, for example, Patent Document 1).

First, from the configuration, in this outer wall panel structure, panel-shaped outer wall panels 4 and 4 are formed on the outer wall portion of the unit house 1 configured by combining a plurality of upper and lower floor building units 2, 2, and 3, 3. It is installed.

These outer wall panels 4 and 4 are frame frames for mounting which have a substantially rectangular cross section on the back side facing the upper and lower floor building units 2 or 3 of the panel main body 4a made of gypsum board or the like. 4b and 4b are provided and mainly configured.

Then, as shown in FIG. 12, the fixing rivets 5 and 5 are disposed outward from the indoor side, which is the beam member 2a, 3a, etc. constituting the building structure of the upper and lower floor building units 2 or 3. The outer wall panels 4 and 4 are configured to be fixed to the outer surface of the upper and lower floor building units 2 or 3.

  Further, waterproof sheets 6 and 6 are pasted on the back side of the outer wall panels 4 and 4.

The waterproof sheets 6, 6 are arranged on the surface side of the outer wall panels 4, 4 with the side edges of the waterproof sheets 6, 6 from the gaps between the opposing left and right edges 4 c, 4 c of the outer wall panels 4, 4. The male rail portion 6a and the female rail portion 6b provided on the respective side edges are exposed to the slider member 7.
The joint portion 8 is formed to be watertight, and after being pushed into the back surface side, the gasket G is inserted to form the joint portion 8.

  Next, the operation of this conventional outer wall panel structure will be described.

In the outer wall panel structure configured as described above, panel-like outer wall panels 4 and 4 are brought into contact with the outer wall portion of the unit house 1 from the outdoor side and are inserted through the indoor side.
, 5 to constitute the outer surface of the upper and lower floor building units 2, 3, the column member and the beam member 2.
The frame bodies 4b and 4b are fixed to a and 3a.

In the joint portions 8 and 8 between the outer wall panels 4 and 4, the male rail portion 6 a and the female rail portion 6 b provided at the side edges of the waterproof sheets 6 and 6 are engaged by the slider member 7. By doing so, it becomes a watertight state.

Further, the gasket G improves the water tightness and improves the appearance of the joint portion 8.

For this reason, there is no possibility that rainwater or the like enters the unit house 1 from the outer wall.
Japanese Examined Patent Publication No. 6-15787 (FIGS. 1 and 2, description, page 2, left column, line 37 to page 5, left column, line 23)

However, in such a conventional outer wall panel structure, the outer wall panels 4, 4 use the rivets 5, 5 inserted from the back side which is the indoor side, and the upper and lower floor building units 2, 2.
It is comprised so that it may fix to the outer surface of 3.

For this reason, since the outer wall panels 4 and 4 are brought into contact with each other from the outdoor side and temporarily fixed, the fixing work by the rivet 5 must be performed from the back side which is the opposite side, and thus the work efficiency is good. Was hard to say.

Further, in the joint portions 8 and 8 between the outer wall panels 4 and 4, the male rail portion 6 a and the female rail portion 6 b provided at the side edges of the waterproof sheets 6 and 6 are attached by the slider member 7. However, although the watertight state is obtained, the number of parts increases due to the use of the waterproof sheet and the gasket, which may increase the manufacturing cost.

Accordingly, the present invention has an object to provide an outer wall panel structure and a construction method thereof that have good workability for attaching the outer wall panel, can surely obtain a watertight state of the joint, have good appearance quality, and are inexpensive. It is said.

In order to achieve the above object, in the invention described in claim 1, an outer wall panel structure having a plurality of outer wall panels pasted to and adhering to the outer wall portion of the building structure at least in the left-right direction, Of the opposing edges between the adjacent outer wall panels, the edge of any one of the outer wall panels opens toward the outside of the building structure by bending the edge part into a predetermined shape. The engaging groove portion having a substantially C-shaped horizontal cross section with an opening formed therein, and being mounted in the engaging groove portion, allows the bottom surface of the engaging groove portion to be formed on the outer surface of the building structure. A fixing member for fixing the portion from the outside of the building structure is provided, and the edge of the other outer wall panel opposite to the edge is inserted into the engaged groove portion from the opening. A crank-like shape that closes the opening of the opening by engagement. If pieces are provided, the engaging piece portion is positioned, the said crank outer face to face mediolateral crank inside surface portion is set between the crank outer face and the crank in the side surface portion A crank portion is provided to give a step to the position, and the crank-shaped engaging piece portion is pressed against the back side of the base end side edge that is folded so as to be double of the engaged groove portion, and has a predetermined width. A crank outer surface portion forming the first seal surface portion, and a second seal surface portion having a predetermined width in pressure contact with the surface side of the end edge on the opposite side of the engaged groove portion from the first seal surface portion. A crank inner side surface portion to be formed, and a lower end level locking projecting piece member projecting from the inner side surface portion of the engaged groove portion. By bringing the lower edge into contact with the level locking protrusion The is characterized in an outer wall panel structure fall prevention piece for preventing the dropping of the engaging pieces in the engaged the groove is provided.

Further, according to a second aspect of the present invention, the ventilation layer portion is formed in the outer wall portion by using a height in the outer wall extending direction from the bottom surface portion of the engaged groove portion to the opening forming position. 1 is characterized by the outer wall panel structure.

Further, according to a third aspect of the present invention, in the outer wall panel according to the first or second aspect, the engaged groove portion is integrally formed by bending an edge of a metal plate material constituting the panel body. It features a structure.

Further, according to a fourth aspect of the present invention, any one of the first to third aspects, wherein the engaging piece portion is integrally formed by bending an edge of a metal plate material constituting the panel body. It is characterized by the outer wall panel structure described in one item.

And what was described in Claim 5 is the outer wall which affixes the some outer wall panel as described in any one of Claim 1 thru | or 4 adjacent to the left-right direction on the outer wall part of a building structure. A construction method of a panel structure, which is formed to be opened toward an outer side of the building structure at an edge of one of the outer wall panels among opposed edges between the adjacent outer wall panels. An engaged groove portion that forms an opening having a substantially C-shaped cross section is formed, and from the outside of the building structure to the outer surface of the building structure via the opening of the engaged groove portion, After the bottom surface portion of the engaged groove portion is fixed by the fixing member, the crank-shaped engaging piece portion formed on the edge of the other outer wall panel facing the edge is inserted into the engaged groove portion. , it is inserted through the opening, by engaging the outer wall panel of the close the opening of the opening It is characterized in the construction method of the structure.

According to the first aspect of the present invention configured as described above, the engaged groove formed on the edge of one of the outer wall panels is formed by the fixing member so that A crank-shaped engaging piece portion formed on the edge of the other outer wall panel is fixed from the outside and is inserted into the engaging groove portion from the opening portion and engaged therewith. The opening is closed.

For this reason, since all the affixing work to the outer wall part of each said outer wall panel can be performed from the outdoor side of the said building structure, the affixing workability | operativity is favorable.

Further, when the engaging piece portion is inserted into the engaged groove portion from the opening portion and is engaged and closed, the space between the opposing end edges of the two outer wall panels becomes substantially watertight.

Moreover, since the said to-be-engaged groove part can be utilized in the shape of a vertical hook, the rain water which permeated from the engaging part can also be discharged below.

For this reason, a joint part can be reliably made into a watertight state between the outer wall panels arrange | positioned adjacent to the said left-right direction.

Furthermore, it is possible to reliably obtain a watertight state at the joint by simply attaching the outer wall panel, and a good appearance can be obtained without a gasket. Can be reduced.

According to a second aspect of the present invention, the ventilation layer portion is formed in the outer wall portion by using the height in the outer wall extending direction from the bottom surface portion of the engaged groove portion to the opening forming position. Therefore, the in-wall ventilation path can be easily provided.

Further, according to a third aspect of the present invention, the engaged groove portion is formed so as to be integrated with the outer wall panel by bending an edge of a metal plate material constituting the panel body. Yes.

  For this reason, since it is not necessary to provide another component, the increase in manufacturing cost can be suppressed.

According to a fourth aspect of the present invention, the engaging piece is formed so as to be integrated with the outer wall panel by bending an edge of a metal plate material constituting the panel body. Yes.

  For this reason, since it is not necessary to provide another component, the increase in manufacturing cost can be suppressed.

And what is described in Claim 5 is opened toward the outer side of the said building structure in the edge of any one outer wall panel among the opposing edges between the said adjacent outer wall panels. The bottom surface of the engaged groove portion is formed on the outer surface of the building structure through the opening of the engaged groove portion having a substantially C-shaped cross section formed from the outer side of the building structure. Fixed by.

Thus, since the fixing operation of the outer wall panel can be performed from the outside of the building structure via the opening using the fixing member, the workability of attaching the outer wall panel is good.

And, by inserting a crank-shaped engagement piece portion formed on the edge of the other outer wall panel facing the fixed edge into the engaged groove portion through the opening, The space between the opposing edges of both outer wall panels is watertight.

For this reason, the said fixing member of the bottom face part of the said to-be-engaged groove part is covered by this engagement piece part,
It is possible to prevent visual recognition from the outside and to improve the appearance quality.

In addition, simply by sticking the outer wall panel member to the outer wall portion of the building structure, the engaging piece portion is inserted into the engaged groove portion through the opening portion, and is engaged. The space between the opposing edges of the outer wall panel is watertight.

For this reason, a joint part can be reliably made into a watertight state between the outer wall panels adjacently arranged in the said left-right direction, waterproof construction etc. become unnecessary, and construction cost can be reduced.

Next, an outer wall panel structure and a construction method of the outer wall panel structure according to the best mode for carrying out the invention will be described with reference to the drawings.

  In addition, the same code | symbol is attached | subjected and demonstrated about the same or equivalent part as the said prior art example.

1 to 10 illustrate an outer wall panel structure according to an embodiment of the present invention and a construction method of the outer wall panel structure.

First, the configuration of this embodiment will be described. In the embodiment of the present invention, as shown in FIG. 2, a plurality of building units 11, 11 as a building structure of a unit house 10 are combined and arranged adjacently. Has been.

These building units 11 are composed of four column members 1 provided at four corners as shown in FIG. 2 or FIG.
2, 12 and the upper and lower ends of the ceiling beam members 13 and 13 and the floor beam members 14 and 14 are connected to each other at each corner so as to exhibit a steel frame ramen structure, and are configured to have a substantially box shape. In addition, a plurality of rod-shaped studs 15, 16, etc. are connected to the ceiling beam member 13 and the floor beam member 1.
It is erected along the vertical direction at regular intervals so as to connect the four.

And the outer surface of these building units 11 is provided with a plurality of outer wall panels 17..., 18.

1 to 6 show an outer wall panel structure of Example 1 of the best mode and a method of constructing the outer wall panel structure.

In the first embodiment, the outer wall panel 17 constituting the general portion of the outer wall portion 20 is shown in FIG.
As shown in FIG. 2, a flat panel main body 22 made of a metal plate material is provided on the back side of the exterior member 21 made of a tile member or a gypsum board, and is mainly configured.

Of the opposing edges when adjacent to the panel body 22, the engaged groove 23 is bent at one right end edge by bending the edge of the panel body 22 into a predetermined shape. It is comprised so that it may become one.

The engaged groove portion 23 is the column member 12 or the studs 15, 1 constituting the building structure.
The bottom surface 23a is brought into contact with the outer surface 12a or 15a, 16b of No. 6 and the opening 23b that opens outward is formed in a substantially C-shaped horizontal section along the vertical direction. It is extended.

As shown in FIG. 1, a rivet insertion hole 23c through which the rivet 5 is inserted is formed in the bottom surface portion 23a of the engaged groove portion 23 of the first embodiment.

The rivet insertion hole 23c is inserted with a rivet 5 as a fixing member mounted in the engaged groove 23, and the outer surface 1 of the column member 12 constituting the outer surface of the building structure.
2a or a fixing hole 1 formed in the outer surface 15a, 16a of the stud 15, 16
When these rivets 5 are inserted into and locked in 2b or 15b, 16b, the engaged groove 23 becomes the outer surface 12a of the column member 12 or the studs 15, 16, or
The bottom surface portion 23a of the engaged groove portion 23 is fixed to 15a and 16b from the outside of the building structure.

Further, as shown in FIG. 1, a folded portion 23 d that is folded so as to be doubled in the plate thickness direction is formed at the proximal end edge of the peripheral edge of the opening 23 b. A first seal surface portion 23e is formed with a predetermined width w1 on the back surface side located in the groove portion of the folded portion 23d.

A second seal surface portion 23f bent at a substantially right angle so as to exhibit a substantially L-shaped cross section has a predetermined width w2 at the end edge on the tip side located on the opposite side of the first seal surface portion 23e. Is formed.

Further, in the first embodiment, a lower end level locking protruding piece member 23h is provided so as to protrude from the side surface portion inner side 23g of the engaged groove portion 23 by a certain length.

Further, as shown in FIG. 4, a crank-shaped engagement piece that closes the opening of the opening 23 b by engagement with the left end edge of the other outer wall panel 17 facing the left end edge of the panel body 22. A portion 24 is provided.

The engagement piece 24 is inserted through the opening 23b into the engagement groove 23 of another adjacent panel body 22 and is pressed against the first seal surface 23e by engagement. Thus, the crank outer surface portion 24a that seals between the opposing end edges of the outer wall panels 22 and 22 between the first seal surface portion 23e and the second seal surface portion 23f is pressed into contact with the first seal surface portion 23e. Between the second seal surface portion 23f, there is a crank inner side surface portion 24b which performs a watertight seal between the opposing end edges of the outer wall panels 22 and 22.

Further, the engagement piece portion 24 is positioned between the crank outer side surface portion 24a and the crank inner side surface portion 24b, and the crank outer side surface portion 24a and the crank inner side surface portion 24b are set in the in-plane and outer direction. A crank portion 24d is provided to give a step to the position.

The crank portion 24d is elastically deformable by a predetermined amount in the in-plane direction, and the crank outer surface portion 24a is connected to the first seal surface portion 23e and the second seal surface portion 23 by a restoring force by elastic deformation.
The crank inner side surface portion 24b is in pressure contact with each of f.

Further, in the first embodiment, the lower end portion of the engagement piece 24 is brought into contact with the lower edge level locking projection piece member 23h at the tip of the engagement piece 24 so that the engagement in the engagement groove 23 is achieved. A drop waterproof piece 24c that waterproofs the fall of the piece 24 is provided so as to extend integrally.

Moreover, the outer wall panel 19 which has the panel main body 122 is provided in the outer wall part 20 located in the connection part of the building units 11 and 11 shown in FIG.

In this outer wall panel 19, both engaged groove portions 23 formed at both opposing end edges of the panel main bodies 22, 22 of the building units 11, 11 at the left and right both ends of the panel main body 122 provided on the back side. , 23 are inserted into the openings 23b, 23b from above the unit house 10 and are engaged to form a watertight seal between the opposing edges of the outer wall panels 22, 122.
24 and 124 have substantially the same shape as the engagement piece portion 24 of the general portion, and are provided so as to be left and right symmetrical.

Further, in the first embodiment, as shown in FIG. 1, the height t1 in the protruding direction of the outer wall from the bottom surface 23a of the engaged groove 23 to the position where the opening 23b is formed is used. , 17 are formed with ventilation layer portions 25, 25, respectively.

Further, as shown in FIG. 5, in the outer wall portion 20 located at the connecting portion of the building units 11 and 11 provided on the upper and lower floors, the upper and lower edge edges of the panel bodies 22 and 22 located on the upper and lower sides are opposed to each other. A quick-tie member 26 is fitted between 22a and 22b, and a horizontal covering member 27 covering the quick-connect member 26 is fixed by a fixture 28 so as to be in a watertight state. .

  Next, the function and effect of the first embodiment will be described.

In the outer wall panel structure of the first embodiment, as shown in FIG. 3, the bottom surface portion 2 of the engaged groove portion 23 of the left outer wall panel 17 disposed adjacent to the outer surface portion 12 a of the column member 12 of the unit house 10.
The rivet 5 is inserted from the outside of the unit house 10 through the opening 23b of the engaged groove 23 while abutting 3a.

Then, the rivet 5 protruding from the rivet insertion hole 23b is inserted and locked into the fixing hole 12b formed in the outer surface portion 12a, and the outer surface portion 12a of the column member 12 or each of the columns shown in FIG. The right side edge of the outer wall panel 17 is fixed to the outer surface 15a of the stud 15.

Next, a crank-shaped engagement piece 24 formed at the left edge of the next outer wall panel 17 positioned on the right side of the fixed outer wall panel 17 is inserted into the engaged groove 23 and the opening 23b. As shown by a two-dot chain line in FIG. 3, the above-mentioned engagement is made so that the outer wall portion 20 is flush with other adjacent outer wall panels 17 up to the position indicated by the solid line while being inserted diagonally. The opening portion 23b is closed by rotating and engaging the joint piece portion 24 with the rotation center.

In the first embodiment, the crank portion 24d of the engagement piece portion 24 is elastically deformed by a predetermined amount in the in-plane direction, and the crank outer surface portion 24a is attached to the first seal surface portion 23e by a restoring force due to elastic deformation. In addition, the crank inner side surface portion 24b is brought into pressure contact with the second seal surface portion 23f.

For this reason, the joint portion between the outer wall panels 17 and 17 is double-sealed by the first seal surface portion 23e and the second seal surface portion 23f, so that good watertight performance can be obtained.

For example, even if rainwater or the like enters from the first seal surface portion 23e, rainwater that has entered the engaged groove portion 23 is stopped by the second seal surface portion 23f, and the inside of the building unit 11 Without intruding into the groove 23, it flows down in the engaged groove 23 and is drained outdoors.

Moreover, in the first embodiment, two metal plate materials are overlapped by the folded portion 23d formed by folding the end edge periphery of the first seal surface portion 23e. For this reason, it is possible to give a sufficient strength that is difficult to be deformed even by the pressure contact of the first seal surface portion 23e.

Further, in the first embodiment, the second end of the engaged groove portion 23 is bent at a substantially right angle so as to exhibit a substantially L-shaped cross section at the tip of a side wall surface provided orthogonal to the panel body 22. The seal surface portion 23f is configured to come into contact with the first seal surface portion 23e.

For this reason, it is possible to give a sufficient strength that is difficult to be deformed even by the pressure contact of the first seal surface portion 23e.

Further, as shown in FIG. 1, a drop waterproof piece 24c provided integrally extending at the tip of the engagement piece 24 causes the lower edge portion of the lower end level locking protruding piece member 23h to contact the lower end level locking protrusion piece 23h. Thus, the drop of the engagement piece 24 in the engagement groove 23 is waterproofed and held at the engagement position.

For this reason, it is not necessary to separately use a sealing member and a fixing member, and the number of parts is reduced, so that an increase in manufacturing and construction costs is suppressed.

4, for example, the bottom surface portion 23a of the engaged groove portion 23 of the outer wall panel 17 is brought into contact with the outer surface portion 16a of the stud 16, and the opening of the engaged groove portion 23 is provided. The rivet 5 is inserted from the outside of the unit house 10 through the portion 23b, and the right side edge of the outer wall panel 17 is connected to the outer surface portion 16a of the stud 16 in substantially the same manner as the left outer wall panel 17. The part is fixed.

For this reason, as shown by the one-dot chain line arrow in FIG. 2, from the left side to the right side, the outer wall panel 17 is repeatedly engaged by the engagement piece 24 and fixed by the rivet 5,
By fixing, the outer wall panels 17 can be attached to the outer wall portion 20 of the building unit 11 constituting the unit house 10 over substantially the entire circumference.

Moreover, in the connection part between the building units 11 and 11 shown in FIG. 6, as shown to the right side of the paper surface in FIG. 6, the panel body in which the engaged groove 23 is formed integrally with the left end edge. 22
An outer wall panel 18 having 2 is used.

And when attaching the outer wall panel 19 which has the panel main body 122 in which the engagement piece parts 124 and 124 were integrally formed in the both-ends edge to the connection part between this building units 11 and 11, it is the engagement member located in both sides. The engaging pieces 124 and 124 of the panel body 222 are slid into the joint grooves 23 and 23 from above the building unit 11, so that the outer wall panel structure is interposed between the outer wall panel 17 and the outer wall panel structure 18. 19 is positioned to complete the connection.

For this reason, since all the affixing work to the outer wall part 20 of each said outer wall panel 17 ..., 18,19 etc. can be performed from the outdoor side of the said building unit 11,11, affixing workability | operativity is favorable. It is.

Further, when the engagement piece 24 is inserted into the engagement groove 23 through the opening 23b and is engaged, there is a gap between the opposing edges of the outer wall panels 17, 18, 19 and the like. The first seal surface portion 23e and the second seal surface portion 23f are sealed and become watertight.

For this reason, a joint part can be reliably made into a watertight state between the outer wall panels 17, 18, 19, etc. which are adjacently arranged in the left-right direction.

Furthermore, since it is possible to reliably obtain a watertight state of the joints by simply attaching these outer wall panels 17, 18, and 19, separately, waterproofing or the like is not necessary, and this also reduces the construction cost. Can be made.

Further, as shown in FIG. 1, the ventilation layer portions 25, 25 use the height t <b> 1 in the outer wall extending direction from the bottom surface portion 23 a of the engaged groove portion 23 to the opening 23 b formation position, Since it is formed in the outer wall portion 20, an in-wall ventilation path can be easily provided using the ventilation layer portions 25, 25.

Further, in the first embodiment, the engaged groove portion 23 is formed so as to be integrated with the outer wall panel 17 and the like by bending the edge of the metal plate material constituting the panel body 22. Yes.

  For this reason, since it is not necessary to provide another component, the increase in manufacturing cost can be suppressed.

Further, the engagement piece 24 is formed so as to be integrated with the outer wall panel 17 and the like by bending the edge of the metal plate material constituting the panel body 22.

  For this reason, since it is not necessary to provide another component, the increase in manufacturing cost can be suppressed.

Further, an engaged groove 23 having a substantially C-shaped cross section formed to open toward the outer side of the building structure is provided at an opposing edge between the adjacent outer wall panels 17 and 17. The column member 1 of the building unit 11 which is the building structure through the opening 23b of the engaging groove 23.
2 or the outer surface 12a or 15a of the stud 15 is brought into contact with the bottom surface portion 23a of the engaged groove portion 23 and fixed by the rivets 5 and 5 from the outside of the building unit 11.

Thus, the opening 23 is formed from the outside of the building structure using the rivet 5.
Since the work of fixing the outer wall panels 17 and the like can be performed via b, the workability of attaching these outer wall panels 17 is good.

Then, a crank-like engagement piece 24 formed on the edge of the other outer wall panel 17 facing the fixed edge is inserted into the engaged groove 23 from the opening 23b and engaged. By doing so, the space between the opposing end edges of both the outer wall panels 17, 17 becomes watertight.

Moreover, in the first embodiment, the bottom surface portion 23 of the engaged groove portion 23 is formed by the engagement piece portion 24.
The head of the rivet 5 provided in a can be covered so that it cannot be seen from the outside, and the appearance quality can be improved.

Moreover, the engagement piece 24 is inserted into the engaged groove 23 from the opening 23a simply by pasting the outer wall panel members 17, 17 and the like on the outer wall 20 of the building unit 11. When being engaged, by the first seal surface portion 23e and the second seal surface portion 23f,
The space between the opposing edges of the outer wall panels 17 and 17 is substantially watertight.

In addition, since the engaged groove portion 23 can be used in a vertical hook shape, rainwater that has entered from the first seal surface portion 23e can be discharged downward without entering the building.

For this reason, it is not necessary to separately perform waterproofing construction at the construction site, and the joint portion can be reliably made watertight between the outer wall panels 7 and 17 arranged adjacent to each other in the left-right direction. A good appearance can be obtained without the gasket G as shown in FIG. 5, and the construction cost can be reduced also in this respect.

7 to 10 show an outer wall panel structure and a construction method of the outer wall panel structure according to the second embodiment of the present invention. The same or equivalent parts as those in the first embodiment will be described with the same reference numerals.

First, from the configuration, in Example 2, as shown in FIGS. 7 to 10, the height t2 in the outer wall extending direction from the bottom surface 23a of the engaged groove 123 to the position where the opening 23b is formed is as follows. The outer wall panel 117 to which the engagement groove portion 123 is mounted from the outer surface of the outer wall portion 120.
Are provided on at least the left and right side edges of the outer wall panel 117,
A gap in which the outer heat insulating members 30 and 30 are interposed can be easily provided inside the 117.

In Example 2, as shown in FIG. 7 or FIG. 10, the inner heat insulating members 31, 31 having substantially the same thickness as the height t 3 of the pillar 11 are more than the outer heat insulating members 30, 30. A double heat insulating layer is provided on the outer wall 120 together with the outer heat insulating members 30 and 30 located on the indoor side.

  Next, the effect of this Example 2 is demonstrated.

In the second embodiment, in addition to the effects of the first embodiment, the heat insulating material of the outer wall 120 is further spread over substantially the entire circumference by the inner heat insulating members 31 and 31 and the outer heat insulating members 30 and 30. Since it can be made heavy, the heat insulation performance can be further improved.

Other configurations and operational effects are substantially the same as those of the first embodiment, and thus the description thereof is omitted.

The embodiment of the present invention and Examples 1 and 2 have been described in detail with reference to the drawings, but the specific configuration is not limited to this embodiment, and is not deviated from the gist of the present invention. The design change is
It is included in the present invention.

That is, in the first embodiment, the engaged groove portion 23 is the pillar material 12 or the studs 15, 1.
6 is configured to be fixed to the outer side surface portion 12a or 15a, 16b from the outer side, but is not particularly limited thereto, for example, an outside of a ceiling beam member or a floor beam member as a building structure. The engaged groove 23 may be fixed to any side as long as the engaged groove 23 is fixed from the outside using a fixture.

BRIEF DESCRIPTION OF THE DRAWINGS It is a horizontal sectional view explaining the structure of the principal part with the construction method of the outer wall panel structure of Example 1 of this Embodiment and this outer wall panel structure. It is a horizontal sectional view explaining the composition of the whole unit house by the construction method of the outer wall panel structure of Example 1, and this outer wall panel structure. It is a typical horizontal sectional view explaining a mode that an outer wall panel is stuck by an outer wall panel structure of Example 1, and a construction method of the outer wall panel structure. It is an expanded horizontal sectional view in the position equivalent to the A section in Drawing 2 by the construction method of the outer wall panel structure of Example 1, and this outer wall panel structure. It is a longitudinal cross-sectional view in the position along the BB line in FIG. 2 with the outer wall panel structure of Example 1, and the construction method of this outer wall panel structure. It is an expanded horizontal sectional view in the position equivalent to the C section in Drawing 2 with the construction method of the outer wall panel structure of Example 1, and this outer wall panel structure. It is an expanded horizontal sectional view in the position equivalent to the A section in Drawing 2 by the construction method of the outer wall panel structure of Example 2, and this outer wall panel structure. It is an expanded horizontal sectional view in the position equivalent to the C section in Drawing 2 with the construction method of the outer wall panel structure of Example 2, and this outer wall panel structure. It is an expanded horizontal sectional view in the part which employ | adopts the panel main body which has a to-be-engaged groove part also in the paper sheet left end by the construction method of the outer wall panel structure of this Example 2, and this outer wall panel structure. It is a longitudinal cross-sectional view of the underground part which demonstrates the structure of the principal part by the construction method of the outer wall panel structure of Example 2, and this outer wall panel structure. It is a disassembled perspective view of a building unit by the external wall panel structure of a prior art example. It is a partial cross-sectional perspective view explaining the waterproof construction of the joint part between building units by the outer wall panel structure of a prior art example.

Explanation of symbols

5 Rivet (fixing member)
10 Unit housing 11 Building unit (building structure)
12 Column 12a Outer side 15 Stud 15a Outer side 17, 17, 19, 117 Outer wall panel 20, 120 Outer wall 22, 122, 222 Panel body 23, 123 Engaged groove 23a Bottom 24, 124 Engagement piece 25 Ventilation part 30 Outside heat insulating member

Claims (5)

It is an outer wall panel structure having a plurality of outer wall panels that are affixed to and adhering to the outer wall portion of the building structure at least in the left-right direction,
Of the opposing edges between the adjacent outer wall panels, the edge of any one of the outer wall panels opens toward the outside of the building structure by bending the edge part into a predetermined shape. While having an engaged groove portion with a substantially C-shaped horizontal cross section in which an opening is formed,
A fixing member for fixing the bottom surface portion of the engaged groove portion from the outside of the building structure is provided on the outer surface of the building structure by being mounted in the engaged groove portion,
A crank-shaped engagement piece portion that is inserted into the engaged groove portion from the opening portion and closes the opening of the opening portion by engagement at the edge portion of the other outer wall panel facing the edge portion. Is provided,
The engaging piece portion is provided with a crank portion that is located between the crank outer surface portion and the crank inner side surface portion and that gives a step to a position where the crank outer surface portion and the crank inner side surface portion are set in the in-plane / outward direction. And
The crank-shaped engagement piece portion is pressed against the back surface side of the base end side edge folded back so as to be double of the engaged groove portion, and forms a first seal surface portion having a predetermined width. And a crank inner side surface portion that is in pressure contact with the surface side of the front end side edge located on the opposite side of the engaged groove portion from the first seal surface portion to form a second seal surface portion having a predetermined width. with there,
A lower end level locking protruding piece member protrudes from the inside of the side surface of the engaged groove portion, and a lower edge is brought into contact with the lower end level locking protruding piece member at the tip of the engaging piece portion. Accordingly , the outer wall panel structure is provided with a fall prevention piece portion for preventing the engagement piece portion from falling in the engaged groove portion .
  2. The outer wall panel structure according to claim 1, wherein a ventilation layer portion is formed in the outer wall portion by using a height in the outer wall projecting direction from a bottom surface portion of the engaged groove portion to the opening forming position.   The outer wall panel structure according to claim 1 or 2, wherein the engaged groove portion is integrally formed by bending an end edge of a metal plate material constituting the panel main body.   The outer wall panel structure according to any one of claims 1 to 3, wherein the engagement piece portion is integrally formed by bending an edge of a metal plate material constituting the panel body. . A construction method of an outer wall panel structure in which a plurality of outer wall panels according to any one of claims 1 to 4 are attached adjacent to each other in the left-right direction on an outer wall portion of a building structure,
An opening portion having a substantially C-shaped cross section formed by opening toward the outer side of the building structure is formed at the edge of one of the outer wall panels among the opposing edges between the adjacent outer wall panels. An engaged groove portion to be formed is formed, and the bottom surface portion of the engaged groove portion is formed on the outer surface of the building structure from the outside of the building structure through the opening of the engaged groove portion. Then, after being fixed by the fixing member, a crank-shaped engagement piece portion formed on the edge of the other outer wall panel facing the edge is inserted into the engaged groove portion from the opening, by engaged, the construction method of the outer wall panel structure characterized in that close the opening of the opening.

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