JP5690630B2 - Joint construction structure of mortar wet wall - Google Patents

Description

  The present invention relates to a joint construction structure and joint for a mortar wet wall for forming a sealing joint at a joint portion between a mortar coated on a mortar wet wall and a wall mounting member such as a sash frame.

  The mortar wet wall is coated with a mortar with a thickness of about 10 to 30 mm to cover the wall base material after the waterproof base or lath net is appropriately attached to the surface of the wall base material, if necessary. By this, it is the wall body in which the surface finishing layer was formed with the hardened mortar, and is used as the outer wall of a building, a partition wall, etc.

  The mortar wet wall is often provided with, for example, openings for windows and entrances and openings for attaching various members, and projects from the peripheral edge of these openings to the outside of the wall surface, Wall attachment members such as joinery frames and member attachment frames may be installed. In addition, a sealing joint is formed at the joint between these wall mounting members and the coated mortar, and a sealing material (caulking material) is attached to ensure sufficient sealing at these joints. In addition, it may be necessary to maintain strong water tightness and air tightness (see, for example, Patent Document 1).

  Then, as a general method for forming a sealing joint at a joint portion between a mortar coated on the surface of the wall base material and a wall mounting member such as a sash frame, prior to coating the mortar, the sealing joint is formed. A joint rod having a cross-sectional shape similar to the predetermined cross-sectional shape of the part is attached as a box-opening member along the side surface of the wall mounting member, and after the mortar is applied and cured, the joint rod is removed. Thus, a method of forming a sealing joint is employed (see FIG. 4).

JP 2004-232430 A

  However, according to the method of forming the sealing joint using the conventional joint rod as a boxing member, when removing the attached joint rod, the hardened mortar around it is broken, particularly at the corner portion. In some cases, it takes a lot of time and labor to repair broken mortar.

  The present invention provides a mortar wet wall that can easily form a sealing joint with a simple configuration in a joint portion between a coated mortar and a wall mounting member such as a sash frame without breaking the cured mortar. The purpose is to provide a joint construction structure and joints.

  The present invention is a joint construction structure of a mortar wet wall for forming a sealing joint portion in a joint portion between a mortar coated on a mortar wet wall and a wall mounting member such as a sash frame. The mortar is applied after attaching a joint joint that maintains a joint spacing between the coating end surface of the mortar and the side surface of the wall mounting member along the side surface of the wall mounting member. The joint member is configured by the end face partition piece disposed along the coating end face of the mortar, the end face partition piece projecting vertically or substantially perpendicularly, and the projecting tip end portion of the wall mounting member. And a spacer piece arranged in contact with the side surface portion, and the end face partition piece can be separated via an easy-fold line at a joint base end portion with the spacer piece, After the mortar coated up to the end face partition piece is cured, the outer part of the end face partition piece is folded away from the easy fold line via the easy fold line, thereby the mortar and the wall mounting member. The above object is achieved by providing a joint construction structure of a mortar wet wall in which the sealing joint to which a sealing material is attached is provided at the joint portion.

  And the joint part construction structure of the mortar wet wall of the present invention is such that the end face partitioning piece is installed with its tip aligned with the height position of the coating surface of the mortar, and the end face partitioning piece is coated with a thickness set tree. As mentioned above, it is preferable that the mortar is applied.

  Moreover, the joint construction structure of the mortar wet wall of the present invention functions as a bond breaker because the outer surface of the spacer piece is formed of a resin material that does not adhere to or is difficult to adhere to the sealing material. It is preferable that it is such.

  Furthermore, in the joint construction structure of the mortar wet wall of the present invention, the spacer piece is provided so as to protrude vertically or substantially vertically from the intermediate portion in the height direction of the end face partition piece. It is preferable to function as a backup material for adjusting the thickness.

  Furthermore, the joint construction structure of the mortar wet wall according to the present invention includes a bottom adhesive piece provided so as to protrude vertically or substantially vertically from the inner end of the end face partition piece, and the bottom adhesive piece is bonded. In addition, it is preferable that the joint article is installed in the joint portion.

  Further, the present invention is a joint article used in the joint construction structure of the mortar wet wall, and an end face partition piece arranged along a coating end face of the mortar, and an intermediate height direction of the end face partition piece A spacer piece that protrudes vertically or substantially vertically from a portion, and a bottom adhesive piece that protrudes perpendicularly or substantially vertically from one end of the end face partition piece, and the end face partition piece includes: The above-mentioned object is achieved by providing a joint article that can be separated through an easy-fold line at the base end portion of the joint with the spacer piece.

  According to the joint construction structure or joint joint of the mortar wet wall of the present invention, without breaking the cured mortar, a simple configuration can be applied to the mating portion between the coated mortar and a wall mounting member such as a sash frame. A sealing joint can be easily formed.

It is sectional drawing of the state before folding the outer part of an end surface partition piece explaining the joint part construction structure of the mortar wet wall which concerns on preferable one Embodiment of this invention. It is sectional drawing of the state which folds apart the outer side part of an end surface partition piece explaining the joint part construction structure of the mortar wet wall which concerns on preferable one Embodiment of this invention. It is sectional drawing of the state which attached the sealing material to the formed sealing joint part explaining the joint part construction structure of the mortar wet wall which concerns on preferable one Embodiment of this invention. It is sectional drawing explaining the conventional method of forming a sealing joint part.

  The joint construction structure 10 of the mortar wet wall which concerns on one preferable embodiment of this invention shown in FIGS. 1-3 is the sash for windows installed in the mortar wet wall 30 which comprises an outer wall, for example in a wooden house building. With the frame 11 as a wall mounting member, a sealing joint portion 14 (see FIG. 3) to which the sealing material 13 is attached to the mating portion 20 between the sash frame 11 and the coated mortar 12 has a favorable structure. It was adopted as a construction structure that can be easily formed while maintaining the surrounding finishing accuracy.

  That is, the joint part construction structure 10 of the present embodiment is a conventional method for forming a sealing joint part in a joint portion between a mortar coated on a mortar wet wall and a sash frame, as shown in FIG. Before the mortar 50 is applied, a joint rod 52 having a cross-sectional shape similar to that of the sealing joint portion 51 is attached along the side surface portion 53a of the sash frame (wall mounting member) 53. However, in this method, when the joint rod 52 is removed, the cured mortar 50 has a structure in which the joint rod 52 is removed. In particular, the corner portion 50a is easily broken, and it becomes impossible to form the sealing joint portion 51 with good finishing accuracy, and the repair work requires a lot of labor and time. This invention was made in view of that there was a technical problem.

  And the joint part construction structure 10 of the mortar wet wall of this embodiment is a joint part 20 of the mortar 12 coated on the mortar wet wall 30 and the sash frame (wall mounting member) 11 as shown in FIG. In addition, the construction structure of the mortar wet wall for forming the sealing joint portion 14 (see FIG. 3), in the joint portion 20 between the mortar 12 and the sash frame 11, along the side surface portion 11a of the sash frame 11, It is configured by coating the mortar 12 after attaching the joint filler 15 that maintains the joint spacing between the coating end surface of the mortar 12 and the side surface portion 11 a of the sash frame 11. The joint article 15 projects from the end surface partition piece 16 disposed along the coating end surface of the mortar 12, and protrudes vertically or substantially vertically from the end surface partition piece 16, and the projecting tip portion is formed on the side surface portion 11 a of the sash frame 11. In addition to the spacer piece 17 disposed in contact with the spacer piece 17, the end face partition piece 16 can be separated via an easy-fold line 18 at a joint base end portion with the spacer piece 17. After the mortar 12 coated up to the end face partition piece 16 is cured, the mortar 12 is formed by folding the outer portion 16a from the easy fold line 18 of the end face partition piece 16 via the easy fold line 18 as shown in FIG. A sealing joint portion 14 to which a sealing material 13 (the cross-section in FIG. 3) is attached is formed at a joint portion 20 between the sash frame 11 and the sash frame 11.

  Further, in the present embodiment, a bottom adhesive piece 19 is provided which protrudes in an L-shape from the inner end of the end face partitioning piece 16 to the opposite side to the spacer piece 17 in a vertical or substantially vertical shape. The joint piece 15 is attached to the joint portion 20 between the mortar 12 and the sash frame 11 by adhering the adhesive piece 19 to, for example, the overhanging joint piece 11b of the sash frame 11 arranged along the surface of the wall base material 21. It has become so.

  In the present embodiment, the mortar wet wall 30 constitutes the outer wall of a wooden house building. For example, the waterproof sheet 22 or the like is formed on the outer surface of the wall base material 21 such as a vertical frame, a horizontal frame, or plywood. After the lath net 23 or the like is appropriately attached, the mortar 12 is coated as a surface finish layer with a coating thickness of about 10 to 30 mm, and the coated mortar 12 is cured. Also, the wall base material 21 is provided with a rectangular window opening, and the window sash frame 11 is fitted into the window opening so that the overhanging joining piece 11b is placed around the window opening. It is attached by bonding and fixing to the wall base material 21.

  The window sash frame 11 is a known one made of, for example, an aluminum sash, and is pre-processed and formed to have a predetermined shape in a factory or the like. The sash frame 11 has a rectangular frame shape that can be fitted into the window opening. As described above, the sash frame 11 is bonded and fixed to the wall base material 21 around the window opening. Thus, the outer portion of the window is attached in a state of protruding from the outer wall surface of the mortar wet wall 30 from the peripheral portion of the window opening. For example, a window glass is disposed inside the sash frame 11 so as to be openable and closable. Prior to the operation of coating the mortar 12 on the surface of the wall base material 21, the joints 15 are continuously provided over the entire circumference of the side surface 11 a of the sash frame 11 along the side surface 11 a. Can be attached.

  In this embodiment, the joint article 15 is a rod-shaped molded product that is processed and formed in a straight line by using a synthetic resin such as vinyl chloride, polystyrene, or polypropylene. When the joint article 15 is installed in the joint portion 20 between the mortar 12 and the sash frame 11, the end face partition piece 16 disposed along the coating end face of the mortar 12 and the height of the end face partition piece 16. A spacer piece 17 provided so as to protrude vertically or substantially vertically from the intermediate portion in the direction, and a bottom adhesive piece 19 provided so as to protrude vertically or substantially perpendicularly from one end of the end face partition piece 16 to the opposite side of the spacer piece 17; The end surface partitioning piece 16 can be separated via an easy-folding line 19 at a joint base end portion with the spacer piece 17.

  Here, the easy fold line 19 that enables the end face partitioning piece 16 to be separated at the joint base end portion with the spacer piece 17 is formed as a thin wire by forming a cut along the joint base end portion, for example. Can be easily provided.

  In the present embodiment, the joint article 15 is a sash frame in which, for example, the bottom surface portion of the bottom adhesive piece 19 is bonded and fixed to the wall base material 21 around the window opening using an adhesive, an adhesive tape, or the like. 11 can be easily attached to the mating portion 20 between the mortar 12 and the sash frame 11 by being adhesively fixed to the outer surface of the overhanging joining piece 11b. As a result, the joint article 15 causes the end face partitioning pieces 16 to stand upright or substantially vertically with respect to the surface of the wall base material 21 and the overhanging joining piece 11b, and the protruding tip of the spacer piece 17 is placed on the sash frame 11. In a state of being in contact with the side surface portion 11a, the sash frame 11 is installed over the entire circumference along the side surface portion 11a.

  Further, in this embodiment, the end face partitioning piece 16 of the joint joint 15 is coated with the mortar 12 at the outer tip when the joint joint 15 is attached along the side surface portion 11 a of the sash frame 11. It is set to be installed according to the height position of the surface. As a result, the end face partition piece 16 can be used as a coating tree, and the end face partition piece 16 is used as a guide, and the mortar 12 around the joint article 15 is placed on the front surface of the end face partition piece 16. By finishing to a height, the coating thickness of the mortar 12 can be managed with high accuracy.

  Furthermore, in this embodiment, the spacer piece 17 of the joint article 15 has an outer surface formed of a resin material that does not adhere to or is difficult to adhere to the sealing material 13. As a result, the spacer piece 17 can be made to function as a bond breaker that does not hinder the deformation of the sealing material 13 at the bottom of the sealing material 13, and only both side surfaces 13 a of the sealing material 13 are placed inside the sealing joint 14. Adhering and making the remaining one surface (bottom surface) a free surface (refer to FIG. 3) makes the sealing material 13 easy to move and the sealing material 13 attached to the sealing joint 14 against shrinkage. And become stronger. Further, by such two-sided adhesion, it becomes possible to improve the quality of sealing by the sealing material 13 and to ensure stable sealing performance.

  Here, the outer surface of the spacer piece 17 is formed of a resin material that does not adhere to the sealing material 13 or is difficult to adhere, or does not adhere to or adhere to the sealing material 13 on the outer surface. By sticking a stiff sheet-like resin material, or not adhering to the sealing material 13 or applying a resin material that is hard to adhere, etc., it is not adhering to the sealing material 13 or difficult to adhere. be able to.

  Furthermore, in the present embodiment, the spacer piece 17 is provided so as to protrude vertically or substantially perpendicularly from the intermediate portion in the height direction of the end face partition piece 16. As a result, the spacer piece 17 can be made to function as a backup material for raising the bottom of the sealing joint portion 14 to be formed, and the thickness of the sealing material 13 can be adjusted to ensure the filling of the sealing material 13. It becomes possible to be. Here, the height position of the spacer piece 17 protruding from the end face partition piece 16 can be appropriately set in view of the type of the sealing material 13, the water stop performance, and the like.

  And in this embodiment, after attaching the joint article 15 over the perimeter along the side part 11a of the sash frame 11, as mentioned above, the mortar 12 is provided on the outer surface of the wall base material 21. The mortar wet wall 30 is formed by applying the end face partitioning pieces 16 as the end formwork.

  When the predetermined curing period of the coated mortar 12 has passed and the mortar 12 has hardened, the end face partition is left through the easy-fold line 18 while leaving the other part of the joint article 15 as shown in FIG. The sealing joint portion 14 is easily formed in the joint portion 20 between the hardened mortar 12 and the sash frame 11 by folding the outer portion 16a away from the easy fold line 18 of the piece 16.

  Further, as shown in FIG. 3, the sealing material 13 is formed on the formed sealing joint portion 14 by a known method, preferably by causing the spacer piece 17 of the joint article 15 to function as a bond breaker and a backup material, It can be easily attached in a two-sided adhesive state in which only both side surfaces 13a are adhered to the inside of the sealing joint 14.

  Here, as the sealing material 13 attached to the sealing joint 14, various known sealing materials such as silicone, modified silicone, polysulfide, urethane, butylene, SBR, and butyl rubber are used. Can do.

  And according to the joint part construction structure 10 of the mortar wet wall of the present embodiment having the above-described configuration, the mortar 12 and the sash frame 11 that have been applied to the mating portion 20 without breaking the hardened mortar 12, The sealing joint 14 can be easily formed with a simple configuration.

  That is, according to the present embodiment, prior to the operation of applying the mortar 12, the joint article 15 including the end face partitioning piece 16 and the spacer piece 17 is attached along the side surface portion 11a of the sash frame 11, and is applied. After the cured mortar 12 is cured, the mating portion 20 between the mortar 12 and the sash frame 11 is obtained by a simple configuration and method in which the outer portion 16a of the end face partitioning piece 16 is folded apart via the easy-folding line 18. In addition, the sealing joint portion 14 can be easily formed, and the outer portion 16a of the end face partition piece 16 can be easily and easily operated by simply folding the outer partition portion 16a on the side opposite to the mortar 12 with the easy fold line 18 as the center. The sealing joint 1 can be folded without breaking or damaging the corners of the hardened mortar 12 in particular. It is possible to easily form.

  In addition, according to the present embodiment, in the state where the joint article 15 is attached along the side surface portion 11a of the sash frame 11 before the mortar 12 is applied, the spacer piece 17 and the end face partition piece 16 Since a considerable distance is maintained between the sash frame 11 and the side surface portion 11a, there is less risk of soiling the sash frame 11 when the mortar 12 is applied, and the curing around the sash frame is simplified. In addition, after the coated mortar 12 is cured, the sash area can be easily cleaned with a brush.

  The present invention is not limited to the above-described embodiment, and various modifications can be made. For example, it is not always necessary to set the tip of the end face partition piece to the height position of the coating surface of the mortar, and the outer surface of the spacer piece is formed of a resin material that does not adhere to the sealing material or is difficult to adhere. There is no need to do it. In addition, it is not always necessary to provide the joint piece spacer piece protruding from the intermediate portion in the height direction of the end face partition piece, and it is provided so as to protrude vertically or substantially perpendicularly from the lower end of the end face partition piece in an L shape. You can also. In this case, the spacer piece can also serve as the bottom adhesive piece. Further, the bottom adhesive piece can be provided so as to protrude from the end face partition piece in the same direction as the spacer piece, and the joint article does not have to include the bottom adhesive piece. Furthermore, the mortar wet wall does not necessarily have to be an outer wall of a wooden house building. The joint construction structure of the present invention can also be employed in a portion where the wall mounting member other than the window sash frame and the mortar to be coated are joined.

10 Joint construction structure 11 Sash frame (wall mounting member)
11a Side surface portion 11b Overhang joining piece 12 Mortar 13 Sealing material 14 Sealing joint portion 14a Both side surfaces 15 Joint member 16 End face partitioning piece 16a Outer portion than easy fold line 17 Spacer piece 18 Easy fold line 19 Bottom adhesive piece 20 Mortar and sash frame Mating part 21 Wall substrate 30 Mortar wet wall

Claims (6)

The joint construction structure of the mortar wet wall for forming a sealing joint in the mating part between the mortar coated on the mortar wet wall and a wall mounting member such as a sash frame,
Attached to the joint portion is a joint member that maintains a joint spacing between the coated end surface of the mortar and the side surface portion of the wall mounting member along the side surface portion of the wall mounting member. Composed by painting,
The joints include an end face partition piece arranged along the coating end face of the mortar, and projecting vertically or substantially perpendicularly from the end face partition piece, with the projecting tip portion contacting the side face portion of the wall mounting member And the end face partition piece is detachable via an easy-fold line at the joint base end portion with the spacer piece,
After the mortar coated up to the end face partition piece is hardened, the outer part of the end face partition piece is folded away from the easy fold line via the easy fold line, thereby the mortar and the wall mounting member. The joint construction structure of the mortar wet wall in which the sealing joint to which the sealing material is attached is formed at the joint portion.   2. The mortar according to claim 1, wherein the end face partition piece is installed with its tip aligned with a height position of a coating surface of the mortar, and the mortar is applied using the end face partition piece as a coating thickness set. Wet wall joint construction structure.   The joint construction structure of the mortar wet wall according to claim 1 or 2, wherein the outer surface of the spacer piece is formed of a resin material that does not adhere to or is difficult to adhere to the sealing material, and functions as a bond breaker. .   The spacer piece functions as a backup material for adjusting the thickness of the sealing material by being provided vertically or substantially vertically protruding from the height direction intermediate portion of the end face partition piece. The joint construction structure of the mortar wet wall of any one of -3.   A bottom adhesive piece provided so as to protrude vertically or substantially perpendicularly from an inner end portion of the end face partition piece, and the joint portion is installed at the joint portion by bonding the bottom adhesive piece. The joint construction structure of the mortar wet wall of any one of 1-4. A joint material used for a joint construction structure of a mortar wet wall according to any one of claims 1 to 5,
From the end face partition piece arranged along the coating end face of the mortar, a spacer piece provided to project perpendicularly or substantially vertically from the intermediate portion in the height direction of the end face partition piece, and from one end of the end face partition piece A bottom adhesive piece that protrudes vertically or substantially vertically, and the end face partitioning piece is detachable via an easy-fold line at a joint base end portion with the spacer piece. object.

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