JP4419582B2 - Joint structure of outer wall - Google Patents

Description

  The present invention relates to a joint structure of an outer wall that is waterproofed by filling with a sealing material.

  The joint gap between the lower outer wall material rising from the peripheral edge of the balcony floor and the upper outer wall material is generally secured by filling with a sealing material. The waterproof performance is left to good sealing construction.

  Conventionally, when sealing is performed, a backup material for receiving the sealing material is inserted into the joint gap, and then the sealing material is filled outside the backup material. Was done after installing all the upper and lower outer wall materials and draining materials. For example, Patent Document 1 discloses a configuration in which the sealing material is filled after the backup material is finally inserted into the joint gap at the construction site.

Japanese Patent Laid-Open No. 7-331836

  However, as described above, if a backup material is inserted into the joint gap at the construction site, the backup material may fall within the joint gap or the seat may become poor. There is a fear that it cannot be done. Moreover, the troublesome installation work of the backup material complicates on-site construction.

  Then, this invention aims at providing the joint structure of the outer wall which can eliminate the above-mentioned trouble, can secure a predetermined sealing depth stably, and can reduce the construction burden in the field. .

In order to solve the above problems, the joint structure of the outer wall according to the present invention is such that the joint between the upper and lower outer wall members is filled with a sealing material from the outside, and the outer joint is formed from the back surface of the upper outer wall member. the draining material is disposed so as to extend over the outer surface of the lower exterior wall material, the sheet-ring material for receiving the backup material is attached in advance, the backup material is in a state attached to the draining material, at least from the upper It has elasticity such that it shrinks when pressed, and at least before attaching the lower outer wall material, it is assumed that the entire draining material is pushed up while shrinking the backup material in such a manner. It is characterized by being.

  Further, the draining material is supported by inserting the upper end portion between the upper outer wall material and the structural material on the back surface side or the base body edge.

  Furthermore, the backup material is a soft resin, and is bonded to the outer surface of the draining material at the lower end portion thereof, and the upper portion from the bonded portion is contracted by pressing from above.

  Further, another second draining material is fixed to the outer surface of the upper end portion of the lower outer wall material from the outside of the draining material, and a protruding piece inside the upper end of the second draining material is located in the joint gap. The sealing material is filled between the upper surface of the protruding piece and the lower end surface of the upper outer wall material.

  Furthermore, the draining material includes a soft piece made of a soft resin, and the soft piece is disposed so as to straddle the outer surface from at least the upper end surface of the lower outer wall material.

  According to this invention, since the backup material that receives the sealing material is attached to the draining material in advance, the backup material falls within the joint gap as in the case where the backup material is inserted into the joint gap at the construction site. A stable mounting state can be realized without being trapped or sitting down. Accordingly, the predetermined sealing depth can be stably secured, and the waterproof performance of the outer wall joint can be enhanced. Moreover, since the troublesome installation work of the backup material at the construction site can be omitted, the construction burden on the site can be reduced.

  Furthermore, before the lower outer wall material is attached, the draining material is held in a state where the entire draining material is pushed upward while the backup material is contracted, so that the draining material hinders the installation work of the lower outer wall material and the like. Can be prevented and workability can be improved.

  Moreover, the back-up material with stretchability is designed to extend and restore the original shape by stopping the draining material after installing the lower outer wall material, etc. And can function to reliably receive the sealing material.

  Further, the backup material is made of a soft resin, and if the lower end portion is bonded to the outer surface of the draining material, the upper portion from the bonded portion is contracted by pressing from above. That is, the above-described expansion / contraction operation of the backup material does not require a special member or complicated work for that purpose, and can be easily realized at low cost.

  On the other hand, with regard to the soft piece of draining material, when installing the lower outer wall material, etc., it can be avoided that it also hinders the construction by turning up the soft piece made of soft resin upward. After installation, since it extends from the upper end surface of the lower outer wall material to the outer surface, it is possible to fulfill the function of discharging water that has intruded into the joint gap by any chance.

  Furthermore, since the protruding piece to the inside of the upper end of the second draining material has entered the joint gap, and the sealing material is filled between the upper surface of the protruding piece and the lower end surface of the upper outer wall material, the lower outer wall Compared to the case of filling between the upper end surface of the material and the lower end surface of the upper outer wall material, a deeper sealing depth can be secured, and the waterproofness of the outer wall joint is further enhanced.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 shows a joint structure of an outer wall around a balcony floor according to an embodiment of the present invention. (20) is a balcony floor, (21) is an outer wall rising from the peripheral edge of the balcony floor (20). is there. The outer wall (21) includes upper and lower outer wall materials (22) and (23) and a base frame (24) as a structural material.

  As the upper outer wall material (22), for example, a siding material formed in a rectangular shape is used. As the lower outer wall material (23), for example, a rectangular wood cement board or other inorganic material is used, and the thickness of the lower outer wall material (23) is larger than that of the upper outer wall material (22). It is getting thinner. In addition, the base frame (24) connects a pair of left and right vertical frame members (25) (25) made of channel steel and a pair of upper and lower horizontal frames (26, 26) also made of channel steel in a square frame shape. Do it.

  The upper and lower outer wall materials (22) and (23) are bonded to the base frame (24) to form the outer wall (21). Here, a horizontal joint gap (27) is formed between the upper and lower outer wall members (22) and (23). The joint gap (27) is filled with a sealing material (86) from the outside, thereby forming a lateral joint of the outer wall (21).

  In this outer wall (21), the upper outer wall material (22) is in a state of projecting to the floor (20) side from the lower outer wall material (23). Also, a spacer (30) made of a metal or synthetic resin rectangular plate having a constant thickness of about 0.5 to 1 mm is interposed between the upper outer wall material (22) and the base frame (24). As a result, a gap (32) is formed between the lower end of the upper outer wall material (22) and the base frame (24) on the back surface side for inserting a part of the draining material (40). Has been.

  As shown in FIG. 2, the discarded draining material (40) includes, for example, a hard piece (41) made of a steel plate formed in a substantially L shape, and a soft piece (43) made of rubber or other soft resin. ing. The hard piece (41) includes a vertical portion (42) disposed along the substantially vertical direction on the back surface side of the upper outer wall material (22), and a substantially horizontal direction extending outward from the lower end of the vertical portion (42). And a horizontal portion (45) extending. The soft piece (43) is bonded to the back surface of the vertical portion (42) and the lower surface of the horizontal portion (45) of the hard piece (41). That is, the discarded water draining material (40) is formed by integrally connecting the hard piece (41) and the soft piece (43).

  As shown in FIG. 3, the discarded draining material (40) is supported by inserting the upper end of the vertical portion (42) of the hard piece (41) into the gap (32) in the attached state. In addition, when the base drum edge is provided on the back surface side of the upper outer wall material (22), the vertical portion (42) is located between the lower end portion of the upper outer wall material (22) and the base drum edge on the back surface side. You may make it support a discarded drainer (40) by inserting an upper end part.

  Further, in the mounted state, the hard piece (41) straddles from the back surface of the upper outer wall material (22) to the upper end surface of the lower outer wall material (23), and the soft piece (43) is located above the lower outer wall material (23). It extends from the end surface to the outer surface. That is, the waste draining material (40) is installed so as to straddle from the back surface of the upper outer wall material (22) to the outer surface of the lower outer wall material (23) in the horizontal joint portion of the outer wall (21). The joint gap (27) between the upper and lower outer wall materials (22), (23) is closed.

  In addition, in the mounted state of the draining drainage material (40), the hard piece (41) is designed to function as a fireproof plate, so there is no need to provide a separate fireproof plate, reducing the number of parts and assembling process Can be simplified.

  A backup material (85) for receiving the sealing material (86) is attached in advance to the discarded draining material (40). The backup material (85) is made of a soft resin, and, for example, foamed polyethylene or other resin foam is suitably used. The backup material (85) is formed in, for example, a substantially prismatic shape, and its cross-sectional shape is a vertically long rectangular shape.

  The backup material (85) is attached across the horizontal portion (45) and the vertical portion (42) with respect to the hard piece (41) of the discarded water draining material (40). The backup material (85) is bonded to the lower end of the vertical portion (42) of the hard piece (41). That is, the backup material (85) is bonded to the outer surface of the draining material (40) at the lower end thereof, and the upper portion of the backup material is contracted by pressing from above.

  However, as the backup material (85), it is not always necessary to use a soft resin, and any material may be used as long as it has a stretchability that can be contracted by pressing from above.

  Here, the construction of the outer wall (21) will be described.First, the upper outer wall material (22) and the base frame (24) are pasted together in a factory or the like, and the waste water draining material (40) is a backup material. Install (85) and bring them to the site for installation.

  Subsequently, as shown in FIG. 4, the draining material (40) is attached by inserting the vertical portion (42) of the hard piece (41) into the gap (32) from below. Then, as shown in FIG. 5, while the backup material (85) is pressed against the lower end surface of the upper outer wall material (22) and contracted, the entire draining material (40) is held upward. In this state, the lower outer wall material (23) is fixed to the base frame (24) with, for example, screws while the soft piece (43) of the discarded draining material (40) is turned up, and L is attached to the outer surface thereof. A shaped PVC steel sheet (44) and a waterproof sheet (33) extending from the balcony floor (20) side are attached.

  After installing the lower outer wall material etc. (23) (33) (44) in this way, the waste draining material (40), the hard piece (41) vertical part (42) was inserted into the gap (32) As shown in FIG. 6, it is lowered and placed on the lower outer wall material (23). As a result, the backup material (85) that has shrunk is expanded and restored to its original shape. Finally, in the state where the soft piece (43) of the discarded water draining material (40) is bent along the upper end surface and the outer surface of the lower outer wall material (23), the upper end portion of the lower outer wall material (23). A second draining material (50) shown in FIG. 7 is fixed to the outer surface from the outside of the soft piece (43).

  As shown in FIGS. 7 and 8, the second draining material (50) includes a rail (51), a bracket (52), and a cover (53). The rail (51) and the bracket (52) are overlapped and fixed to the upper end of the outer surface of the lower outer wall member (23) with screws (55) (55) ... 52) is engaged and supported to cover the rail (51).

  The rail (51) is a long member having the same cross section in the longitudinal direction, and substantially L-shaped engagement pieces (61) (61) are projected from the upper and lower ends of the board piece (60). A guide groove (62) is formed on the surface side of the substrate piece (60). Further, a plurality of screw insertion holes (63), (63), ... are formed in the substrate piece (60) at intervals in the longitudinal direction, and further on the back side of the substrate piece (60) along the longitudinal direction. A recess (64) is formed, and a watertight material (65) is attached over substantially the entire length of the recess (64) in the longitudinal direction. This watertight material (65) is a substantially prismatic member having a stretchability made of, for example, a resin foam, and from the recessed portion (64) to the rear before being fixed to the lower outer wall material (23) of the rail (51). It is in an overhanging state.

  The bracket (52) is a short member having a fixed size, and a pair of elastic pieces (71) (71) extend forward from the upper and lower ends of the rail pressing piece (70). Screw holes (72) (72) are formed in the vicinity of both ends in the longitudinal direction of the rail pressing piece (70). Further, the front end portions of the elastic pieces (71) (71) are bent in a square shape. This bracket (52) can be slid in the horizontal direction without falling off while being held by the rail (51) by fitting the rail holding piece (70) into the guide groove (62) of the rail (51). It has become. Accordingly, by sliding the bracket (52), the bracket (52) can be easily and reliably overlapped with the abutting portion of the adjacent rails (51) (51).

  The cover (53) is a long member having the same cross section in the longitudinal direction, and a pair of latching pieces (81) (81) are extended rearward from the upper and lower ends of the decorative piece (80). Further, the upper end portion of the rising piece (82) rising from the decorative piece (80) is bent substantially horizontally horizontally rearward, that is, inward, to form the protruding piece (83).

  Here, the construction of the second draining material (50) will be described. First, the screw (55) inserted into the screw insertion hole (63) of the rail (51) is screwed into the lower outer wall material (23). The rail (51) is attached to the lower outer wall material (23).

  At this time, at the abutting portion between the ends of the adjacent rails (51) and (51), the rail pressing piece of the bracket (52) (62) straddles the guide grooves (62) and (62) of the rails (51) and (51). 70) and insert bracket (52). Then, the screws (55) (55) inserted into the screw insertion holes (63) (63) and the screw holes (72) (72) matched with each other are screwed into the lower outer wall material (23), and the bracket (52) And the rails (51) and (51) are fixed together on the lower outer wall material (23). Further, by fixing the rails (51) (51) to the lower outer wall material (23), the watertight material (65) is compressed through the soft piece (43) of the draining water drainage material (40). Pressing the waterproof sheet (33), this ensures that the gap between the board piece (60) of the rail (51) and the waterproof sheet (33) is filled, and the screws (55) (55) ... Inundation is prevented.

  After attaching the rails (51) (51) ... and the brackets (52) (52) ... to the lower outer wall material (23) in this way, the cover (53) ( 53) is pushed in from the front, and the latching pieces (81) (81) are engaged with the elastic pieces (71) (71) of the bracket (52) from the outside, so that the cover (53) (53) ... Are attached to the brackets (52), (52).

  As shown in FIG. 3, when the draining material (50) is attached, the projecting piece (83) on the inside of the upper end is located in the joint gap (27) between the upper and lower outer wall materials (22) and (23). It has entered the state. A sealing material (86) is filled between the upper surface of the protruding piece (83) and the lower end surface of the upper outer wall material (22). At this time, since the backup material (85) is attached to the draining material (40) in advance, it is in a stable attachment state, and a predetermined sealing depth can be secured stably. In this way, the horizontal joint between the upper and lower outer wall materials (22) and (23) is subjected to double water stop treatment by the sealing material (86) and the drainage draining material (40) inside thereof. .

  In addition, this invention is not limited to the said embodiment, Of course, many corrections and changes can be added to the said embodiment within the scope of this invention. For example, in the above embodiment, the outer wall on the peripheral edge of the balcony floor has been described as an example. However, the joint structure of the present invention may be applied to an outer wall that rises from the peripheral edge of the ceiling floor and other outer walls.

It is a perspective view which shows the joint structure of the outer wall which concerns on one Embodiment of this invention. It is a perspective view which shows a discarded drainer. It is sectional drawing which shows the joint structure of an outer wall. It is sectional drawing which shows the construction procedure of an outer wall. It is the sectional drawing similarly. It is the sectional drawing similarly. It is sectional drawing which shows a 2nd draining material. It is a perspective view which similarly shows the construction procedure.

Explanation of symbols

(21) Exterior wall
(22) Upper outer wall material
(23) Lower outer wall material
(27) Joint gap
(40) Draining material (Discarded draining material)
(43) Soft piece
(50) Second drainer
(83) Protruding piece
(85) Backup material
(86) Sealing material

Claims (5)

For draining material installed so as to straddle from the back surface of the upper outer wall material to the outer surface of the lower outer wall material at the horizontal joint portion of the outer wall configured by filling the joint gap between the upper and lower outer wall materials from the outside. the sheet-ring material for receiving the backup material is attached in advance, the backup material is in a state attached to said draining member includes a stretchable such that contracted by pressure from at least the upper, at least the lower outer wall member Before attaching the joint, the joint structure of the outer wall is characterized in that the entire draining material is held upward while the backup material is contracted in such a manner . The joint structure of the outer wall according to claim 1, wherein the draining material is supported by inserting an upper end portion thereof between the upper outer wall material and the back side structural material or the base body edge. The said backup material is soft resin, Comprising: It adheres to the outer surface of the draining material in the lower end part, and the upper part from the adhesion part shall shrink | contract by the press from upper direction. The joint structure of the outer wall as described in 2 . Another second draining material is fixed to the outer surface of the upper end portion of the lower outer wall material from the outside of the draining material, and a protruding piece to the inside of the upper end of the second draining material enters the joint gap. The joint structure of the outer wall according to any one of claims 1 to 3, wherein the sealing material is filled between the upper surface of the protruding piece and the lower end surface of the upper outer wall member . The draining material includes a soft piece made of a soft resin, and the soft piece is installed so as to straddle the outer surface from at least the upper end surface of the lower outer wall material. The joint structure of the outer wall as described .