JPH08302844A - Dry joint structure of building in unit construction method - Google Patents

Abstract

PURPOSE: To easily execute works for a dry joint structure of a building in unit construction method while the term of works can be reduced and the cost of construction can be saved. CONSTITUTION: A secondary gasket 7 and a primary gasket 6 are press-fitted to a longitudinal joint 4 between outer wall panels 1, 1 in order from the inner part. The secondary gasket 7 is so constructed that plural elastic fins formed by soft resin are arranged side by side in the direction of the depth of the joint and projected on both surfaces of a core material formed by hard resin, and the tips of the respective elastic fins are inclined to the opening side of the joint.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dry joint structure for an outer wall of a unit construction building such as a house.

[0002]

2. Description of the Related Art Conventionally, in a unit construction building in which unit boxes are arranged side by side vertically and horizontally, between outer wall panels 1 and 1 attached to the left and right unit boxes as shown in FIG. 9 (A). The vertical joint 4 formed in the
3 and 3 are press-fitted from the back side in this order for waterproofing,
As the secondary gasket 52, a soft elastic rod material having a round cross section as shown in FIG. 9B was used. However, the secondary gasket 52 has a round cross section and is entirely made of a soft material,
Since there is no directivity in the case of elastic deformation, it is not easy to insert it into the vertical joint 4. In particular, since the end wall surface of the outer wall material 2 forming the front side of the outer wall panel 1 has a large resistance, it becomes more difficult to insert the secondary gasket 52 into the vertical joint 4. If the joint width is too narrow, it becomes difficult to insert the secondary gasket 52,
On the other hand, if the joint width is too wide, it will fall out easily.

Further, as shown in FIG. 10, a back-up material 55 is press-fitted into the lateral joints 5 formed between the outer wall panels 1 and 1 attached to the upper and lower unit boxes, and then a wet sealing material 56 is injected to waterproof. Was processing. But,
Since the wet sealing process is an on-site operation, it is easily affected by the weather and requires a curing period, so it is not suitable for a unit construction building that has the advantage of shortening the construction period. In addition, since the wet sealing process requires special skill, there is a problem that the site construction cost increases significantly.

An object of the present invention is to provide a dry joint structure for a unit construction building which can be easily constructed on-site, shorten the construction period and reduce the construction cost.

[0005]

According to a first aspect of the present invention, a dry joint structure of an outer wall in a unit construction building in which unit boxes are vertically and horizontally arranged is as follows. A secondary gasket and a primary gasket are press-fitted in this order from the inner side into vertical joints formed between outer wall members of outer wall panels attached to the left and right unit boxes and between panel frames. The secondary gasket, on both sides of the core material made of hard resin, elastic fins made of soft resin are arranged in the joint depth direction in a plurality of pieces to be arranged and projected,
Moreover, the tip of each elastic fin is inclined toward the joint opening side. Further, an upper drainer and a lower drainer are provided in the lateral joints formed between the outer wall surface members of the outer wall panels attached to the upper and lower unit boxes and between the panel frames. The lower drainer has a plurality of standing pieces on the upper surface of the bottom plate portion that covers the upper surface of the lower outer wall panel, the standing pieces being separated from each other in the depth direction of the joint. The upper drainer is formed in an L topographical cross section covering from the lower surface of the upper outer wall panel to the lower edge of the back surface, and has an elastic seal member that is pressed against the standing piece outside the lower drainer.

[0006] The invention of claim 2 relates to the vertical joint portion of the dry joint structure of the invention of claim 1. That is, the secondary gasket and the primary gasket are press-fitted in this order from the inner side into the vertical joints formed between the outer wall surface materials of the outer wall panels attached to the left and right unit boxes and between the panel frames. The secondary gasket, on both sides of the core material made of hard resin, elastic fins made of soft resin are arranged in the joint depth direction in a plurality of pieces to be arranged and projected,
Moreover, the tip of each elastic fin is inclined toward the joint opening side.

The invention of claim 3 relates to the lateral joint portion of the dry joint structure of the invention of claim 1. That is, the upper drainer and the lower drainer are provided in the lateral joints formed between the outer wall members of the outer wall panels attached to the upper and lower unit boxes and between the panel frames. The lower drainer has a plurality of standing pieces on the upper surface of the bottom plate portion that covers the upper surface of the lower outer wall panel, the standing pieces being separated from each other in the depth direction of the joint. The upper drainer is formed in an L-shaped cross section covering from the lower surface of the upper outer wall panel to the lower edge of the back surface, and has an elastic seal member that is in pressure contact with the standing piece outside the lower drainer.

According to a fourth aspect of the present invention, in the dry joint structure of the unit construction building according to the first or third aspect, a drainer extending on both sides of the vertical joint and placed over lower drainers of left and right outer wall panels. A joint piece is provided. This drainer joint piece has a bottom plate portion that is placed on the lower drainer outside the standing piece, and a U-shaped enclosing piece that rises from both side edges and the rear side edge of the bottom plate portion.

[0009]

According to the dry joint structure of the present invention, when the secondary gasket is press-fitted into the vertical joint, the core material of the secondary gasket is made of hard resin, and elastic fins made of soft resin are formed on both sides of the joint in the joint depth direction. Since a plurality of sheets are juxtaposed side by side, they can be easily pushed into a fixed position in the vertical joint without being affected by the variation in joint width and can be easily pushed into a fixed position in the vertical joint without falling out. In addition, the waterproof treatment of the horizontal joint, cover the upper surface of the lower outer wall panel with a lower drainer,
Since it is only necessary to cover the upper drainer from the lower surface to the back surface of the upper outer wall panel and press the elastic sealing material of the upper drainer into pressure contact with the standing piece of the lower drainer, it does not require on-site work or special skills, and is easy to be affected by the weather. And stable quality can be achieved.

According to the dry joint structure of the invention of claim 4,
By placing the drain joint pieces over the lower drains of the left and right outer wall panels, it is possible to easily waterproof the portion where the horizontal joint is divided by the vertical joint.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS. The dry joint structure according to this embodiment is shown in FIG.
The unit box UB shown in FIG. 8 is applied to the vertical joints and the horizontal joints of the outer wall in the unit construction building which is arranged vertically and horizontally as shown in the plan view of FIG. The unit box UB is composed of pillars 11 at four corners made of square pipes and the like, and beams 30 made of grooved steel for the ceiling and floor joined between the upper ends and lower ends of the pillars 11, and a floor panel (not shown). ) Or outer wall panel 1 etc. are attached.

In FIG. 2, the vertical joint 4 is formed between the outer wall members 2 and 2 of the outer wall panels 1 and 1 mounted on the left and right unit boxes and between the panel frames 3 and 3. The horizontal joint 5 in FIG. 5 is formed between the outer wall surface members 2 and 2 of the outer wall panels 1 and 1 attached to the upper and lower unit boxes UB and between the panel frames 3 and 3.

As shown in the horizontal sectional view of FIG. 2A, the secondary gasket 7 and the primary gasket 6 are press-fitted into the vertical joints 4 in this order from the inner side for waterproofing. As shown in the horizontal sectional view of FIG. 1C, the secondary gasket 7 is integrally molded on both sides of the core material 7a made of hard resin, and a plurality of elastic fins 7b made of soft resin are juxtaposed in the joint depth direction. It was made. Each elastic fin 7b has a tip inclined toward the opening side of the vertical joint 4. The secondary gasket 7 is pushed into a predetermined position on the inner side of the vertical joint 4 by using the jig 8 shown in FIG. The jig 8 has an extruding piece 8a at the front end, a stopper 8b at the middle barrel, and a gripping portion 8 at the rear end.
1C, the secondary gasket 7 is pushed into the vertical joint 4 by the pushing piece 8a of the jig 8 as shown in FIG. At this time, since the core material 7a of the secondary gasket 7 is made of hard resin, the entire gasket is not elastically deformed during the pushing operation, and only the elastic fins 7b made of soft resin on both sides are elastically deformed easily. Can be pushed. As shown in FIG. 2B, a rubber sheet 9 having a double-sided tape 10 adhered on the back surface is adhered to the upper end of the secondary gasket 7, and the rubber sheet 9 is attached to the panel frames 3, 1 of the outer wall panels 1, 1. 3 Bond between the upper ends.

The primary gasket 6 has a core material 6a, a plurality of elastic fins 6b protruding from both surfaces thereof, and a lid portion 6c. The elastic gasket 6b is press-fitted into the opening side of the vertical joint 4 by elastic deformation. The lid 7c closes the opening of the vertical joint 4 in a watertight manner. The entire primary gasket 6 is integrally formed of rubber or synthetic resin.

FIG. 2 shows the arrangement of the outer wall panels 1 in the end portion of the unit construction building. The outer wall panels 1 and 1 of the left and right unit boxes UB are continuous through vertical joints 4. FIG. 3 (A) shows the arrangement of the outer wall panel 1 in the girder side portion of the unit construction building, and the left and right outer wall panels 1 and 1 are vertically elongated partial joint outer walls that cover the columns 11 and 11 of both unit boxes. It is continuous through panel 1A. That is, between the left outer wall panel 1 and the joint outer wall panel 1A, and the right outer wall panel 1
Vertical joints 4 are respectively formed between the joint and the outer wall panel for joint 1A. In addition, in the outer wall panel 1, 1A,
When joining the outer wall material 2 and the panel frame 3, as shown in FIG.
Tighten and fix with 3. At this time, the adhesive 14 is applied to the contact surface side of the outer wall surface material 2 of the waterproof sheet 12, the putty 15 is applied to the peripheral edge thereof, and the double-faced tape 16 is applied to the contact surface side of the panel frame 3 of the waterproof sheet 12. Affix. As the secondary gasket 6, a long elastic fin 7b as shown in FIG. 4 may be used, and thus it is possible to cope with the vertical joints 4 having different joint widths.

As shown in the longitudinal sectional view in FIG. 5C, the horizontal joint 5 is provided with an upper drainer 17 and a lower drainer 18. The lower drainer 18 is provided on the upper surface of the bottom plate portion 18a that covers the upper surface of the lower outer wall panel 1 as shown in FIG.
Two standing pieces 18b, 18 that are separated from each other in the depth direction of the
It has a c, and putty 19 is applied to the inner portion of the back surface thereof, and double-sided tape 20 is attached to the front portion thereof to be bonded to the upper surface of the lower outer wall panel 1. The upper drainer 17 is shown in FIG.
As shown in (A), it has an L-shaped cross section that covers from the lower surface of the upper outer wall panel 1 to the lower edge of the back surface, and has a soft elastic sealing material 21 that is pressed against the outer standing piece 18b of the lower drainer 18. Putty 22 on the back of the back
Is applied, a double-sided tape 23 is attached to the front portion, and the lower surface of the upper outer wall panel 1 is fastened with screws 24 to be joined. Further, the opening of the lateral joint 5 is covered with a decorative cover 25 composed of four members that mesh with each other. That is, at the lower end of the outer wall material 2 of the upper outer wall panel 1, the upper mounting material 25a is provided with the screw 26.
, And a lower mounting member 25b is fastened to the upper end of the outer wall material 2 of the lower outer wall panel 1 with a screw 27 to join.
The decorative cover 25 is attached by engaging the upper cover 25c that meshes with the upper mounting member 25a via the elastic sealing material 28 and the lower cover 25d that meshes with the lower other member mounting member 25b. In FIG. 5C, 30, 30
Are floor beams and ceiling beams of the upper and lower unit boxes UB.

The water drainers 17 and 18 of the horizontal joint 5 can be set in advance at the factory and delivered to the site, but they are divided by the vertical joint 4 at that time. Figure 6
As shown in the vertical sectional view and the plan view in (A) and (B),
A drainer joint piece 28 is provided which extends on both sides of the vertical joint 4 and is placed over the lower drainers 18 of the left and right outer wall panels 1, 1. This draining joint piece 28
Is a bottom plate portion 28a that is placed on the lower drainer 18 outside the standing pieces 18b and 18c, and a U-shaped enclosing piece 28 that rises over both side edges and the inner side edge of the bottom plate portion 28a.
It has a b, and is joined to the lower drainers 18 on the left and right via a butyl rubber tape 29 attached to the back surface thereof. The bottom side of the bottom plate portion 28a of the drain joint piece 28 surrounded by the surrounding pieces 28b receives the lower end of the secondary gasket 6 of the vertical joint 4 as shown in FIG. 6C. This ensures the waterproof treatment at the intersection of the vertical joint 4 and the horizontal joint 5.

[0018]

EFFECTS OF THE INVENTION The dry joint structure of a unit construction building according to the present invention has a vertical joint formed between outer wall members of outer wall panels mounted on the left and right unit boxes and between panel frames. Multiple elastic fins made of soft resin are arranged and projected in the joint depth direction on both sides of the core material consisting of, and the elastic fins whose tip is inclined toward the opening side of the joint are press-fitted. It can be easily pushed into a fixed position in the vertical joint by elastic deformation of only the elastic fin without being affected by the variation of the, and does not fall out. In addition, an upper drainer and a lower drainer are provided in the lateral joints formed between the outer wall members of the outer wall panels attached to the upper and lower unit boxes and between the panel frames, and the bottom drainer covers the lower drainer on the upper surface of the lower outer wall panel. A plurality of standing pieces separated from each other in the depth direction of the joint are provided on the upper surface of the part, and the upper drainer is formed in an L-shaped cross section covering from the lower surface of the upper outer wall panel to the lower edge of the back surface, and the outer side of the lower drainer is formed. Since it has an elastic sealing material that is pressed against the standing piece, it can be performed easily and with stable quality without the need for on-site work and special skill, regardless of the weather. In the case of the invention of claim 4, a drainer joint piece that extends on both sides of the vertical joint and is placed over the lower drainers of the left and right outer wall panels is provided, and this drainer joint piece is provided on the lower drainer outside the standing piece. Since it has a bottom plate part to be placed and U-shaped enclosing pieces that rise from both side edges and the back side edge of this bottom plate part, the part where the horizontal joint is divided by the vertical joint can be easily performed on site. Can be waterproofed.

[Brief description of drawings]

FIG. 1A is a horizontal cross-sectional view of a vertical joint of an embodiment of the present invention, FIG. 1B is a perspective view of a jig used for waterproofing the same vertical joint, and FIG. 1C is the same vertical joint. It is a horizontal cross-sectional view of the secondary gasket press-fitted.

FIG. 2A is a horizontal cross-sectional view showing a configuration of a unit construction building in a vertical joint on a gable side in the embodiment, and FIG. 2B is a perspective view of the same.

FIG. 3 (A) is a horizontal sectional view showing a configuration of vertical joints on the girder side of the unit construction building in the embodiment, and FIG. 3 (B) is an exploded horizontal sectional view of main parts of the outer wall panel.

FIG. 4 is a horizontal sectional view showing a modified example of the secondary gasket.

FIG. 5 (A) is a vertical cross-sectional view showing the mounting structure for the upper drainer of the horizontal joint of the embodiment, (B) is a vertical sectional view showing the mounting structure for the lower drainer of the horizontal joint, and FIG. FIG. 4 is a vertical cross-sectional view of the horizontal joint portion.

FIG. 6 is a longitudinal sectional view showing an intersection of the horizontal joint and the vertical joint, FIG. 6B is a plan view of the intersection, and FIG. 6C is a perspective view of a draining joint piece used for the intersection. (D) is a vertical cross-sectional view of the same drainer joint piece, and (E) is a vertical cross-sectional view of the lower drainer.

FIG. 7 is a perspective view of a unit box.

FIG. 8 is a schematic plan view showing a combined state of unit boxes.

9A is a horizontal sectional view showing a vertical joint structure of a conventional example, and FIG. 9B is a perspective view of the secondary gasket.

FIG. 10 is a vertical cross-sectional view showing a conventional horizontal joint structure.

[Explanation of symbols]

1 ... Outer wall panel, 2 ... Outer wall material, 3 ... Panel frame,
4 ... longitudinal joint, 5 ... transverse joint, 6 ... primary gasket, 7 ... secondary gasket, 7a ... core material, 7b ... elastic fin, 11 ...
Columns, 17 ... upper drainer, 18 ... lower drainer, 18a ... bottom plate portion, 18b, 18c ... standing piece, 21 ... elastic sealing material,
30 ... Beam, UB ... Unit box

Claims (4)

[Claims] 1. A dry joint structure of an outer wall in a unit construction building in which unit boxes are arranged side by side vertically and horizontally formed between outer wall material of outer wall panels attached to left and right unit boxes and between panel frames. A secondary gasket and a primary gasket are press-fitted into the joint in this order from the back side, and the secondary gasket has a plurality of elastic fins made of a soft resin arranged in the joint depth direction on both sides of the core material made of a hard resin and projected. The tip of each of the elastic fins is inclined toward the joint opening side, and the upper part of the horizontal joint is formed between the outer wall members of the outer wall panels attached to the upper and lower unit boxes and between the panel frames. A drainer and a lower drainer are provided, and the lower drainer has a joint depth on the upper surface of the bottom plate portion that covers the upper surface of the lower outer wall panel. The upper drainer is formed into an L-shaped cross section covering from the lower surface of the upper outer wall panel to the lower edge of the back surface, and has an elastic portion that is pressed against the outer blade of the lower drainer. A dry joint structure of a unit construction building that has a sealing material. 2. A dry joint structure for an outer wall in a unit construction building in which unit boxes are arranged side by side vertically and horizontally, which is formed between outer wall members of outer wall panels attached to the left and right unit boxes and between panel frames. A secondary gasket and a primary gasket are press-fitted into the joint in this order from the back side, and the secondary gasket has a plurality of elastic fins made of a soft resin arranged in the joint depth direction on both sides of the core material made of a hard resin and projected. The dry joint structure of a unit construction building in which the tip of each elastic fin is inclined toward the joint opening side. 3. A dry joint structure of an outer wall in a unit construction building in which unit boxes are arranged side by side vertically and horizontally, and horizontal joints formed between outer wall material of outer wall panels attached to upper and lower unit boxes and between panel frames. In the ground, an upper drainer and a lower drainer are provided, and the lower drainer is assumed to have a plurality of standing pieces separated from each other in the depth direction of the joint on the upper surface of the bottom plate portion covering the upper surface of the lower outer wall panel. , A dry joint structure of a unit construction building having an L-shaped cross section covering from the lower surface of the upper outer wall panel to the lower edge of the rear surface, and having an elastic sealing material that presses against the standing piece outside the lower drainer. 4. A drainer joint piece which extends on both sides of the vertical joint and is placed over the lower drainers of the left and right outer wall panels is provided, and the drainer joint piece includes a bottom plate portion which is placed on the lower drainer outside the standing piece. The dry joint structure of the unit construction building according to claim 1 or 3, further comprising a U-shaped enclosing piece that rises from both side edges and the inner side edge of the bottom plate portion.