JP2013019107A - Mortar coating thickness uniformizing member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mortar coating thickness uniformizing member which allows for the uniform coating thickness of a mortar outer wall, having excellent water stop performance with reduced manufacturing cost.SOLUTION: A mortar coating thickness uniformizing member 50 includes a driven body 52 made of rigid materials and a water stop body 54 made of flexible materials. The driven body is inserted in a through-hole of the water stop body. The driven body and the water stop body are fluid-tightly bonded with a water-resistant adhesive. In use of the member, the tip side of the driven body is driven into an underlay material 12 of an outer wall. The distance between the front end face of the water stop body and the rear end face of the driven body is slightly shorter than the mortar coating thickness h, so that the rear end face of the driven body can be used as a mortar coating thickness marker when a lath net is applied with mortar 24.

Description

  The present invention relates to a mortar coating thickness equalizing member that can make the coating thickness of a mortar uniform by driving into an outer wall underlaying material at the time of constructing a mortar outer wall of a building.

  Conventionally, construction of a mortar outer wall of a building has been performed as shown in FIG. FIG. 3 is a schematic horizontal sectional view showing an example of a construction method for the outer wall of the mortar. In FIG. 3, 10 is a pillar material fixed to an inner wall (not shown) existing on the indoor side of the building, 12 is an outer wall underlay material fixed to the pillar material 10, and 14 is a metal lath net 16 on one side. 1 shows a lath net with a waterproof sheet to which a waterproof sheet 18 is bonded.

  As the lath net 16 of the lath net 14 with waterproof sheet, a lath net (rib lath) in which convex ribs 20 are formed along the width direction at predetermined intervals in the vertical direction is used. The rib lath improves the strength by the convex rib 20 and prevents the lath net 16 from being deformed by the pressure applied to the lath net 16 during application of mortar. Further, the lath net 14 with waterproof sheet is fixed to the outer wall underlaying material 12 by a lath fastener (staple) 22 at the portion of the convex rib 20.

  In the construction method of the outer wall of the mortar of this example, the lath net 14 with the waterproof sheet is fixed to the outer wall underlaying material 12 with the lath fastener 22 with the waterproof sheet 18 inside, and then the mortar 24 is applied to the lath net 16. The mortar outer wall 26 is constructed.

  The lath net described above is a so-called expanded metal, in which a mesh is formed by cutting a large number of notches having a required mesh size in one direction and pulling in a perpendicular direction on a thin metal plate. Further, the waterproof sheet described above is a laminate of waterproof paper and nonwoven fabric, and is adhered to the top of the convex rib with an adhesive so that the surface in contact with the lath net is a nonwoven fabric.

  As described above, when mortar is applied to a lath net in the construction of a mortar outer wall of a building, it is important to apply the mortar with a certain thickness in terms of preventing cracks in the mortar outer wall and improving aesthetics.

  Therefore, for example, a mortar thickness ruler jig of Patent Document 1 has been proposed as a tool for applying mortar to a lath net with a constant thickness. The jig of Patent Document 1 is attached to a plurality of mortar base surfaces when a mortar is applied to a mortar base surface having a waterproof sheet laid on the surface via a lath net. A mortar thickness ruler jig for guiding the coating so as to be applied with a thickness, a contact base portion that is closely attached to the waterproof sheet, and a fixing needle portion that protrudes to one side of the contact base portion And a thickness guide portion projecting to the other side across the contact base portion, the fixing needle portion is pushed through the mortar base surface through the waterproof sheet, and the contact base portion is While making it closely_contact | adhere to a waterproof sheet, the front-end | tip of the said thickness guide part is arrange | positioned in the height position of the surface of the mortar coated with the said predetermined coating thickness (Claim 1).

JP 2011-32668 A

However, the mortar thickness ruler jig of Patent Document 1 has the following defects (a) and (b).
(A) Since the close contact base portion, the fixing needle portion and the thickness guide portion are integrally formed of metal or synthetic resin and the close contact base portion is made of a hard material (0024 to 0026), the close contact base portion is in close contact with the waterproof sheet. Even if it makes it, a clearance gap may arise between a close_contact | adherence base part and a waterproof sheet, and water may pass through this clearance gap and a water stoppage may be impaired. On the other hand, in claim 2 of Patent Document 1, it is shown that a water-stopping adhesive material is applied to the surface of the contact base portion on the fixing needle portion side. The manufacturing cost of the tool increases.
(B) Since the close contact base portion, the fixing needle portion, and the thickness guide portion are integrally formed (0025, 0026), it is necessary to manufacture separate jigs for different mortar coating thicknesses. Yes, as in (a), the manufacturing cost of the jig is increased.

  The present invention has been made in view of the above-described circumstances, and can be made uniform in the mortar coating thickness by being driven into the outer wall underlaying material during construction of the mortar outer wall of the building, and has excellent water-stopping properties. At the same time, it is an object to provide a mortar coating thickness uniform member capable of reducing the manufacturing cost.

  In order to achieve the above object, the present invention comprises a rod-shaped driving body made of a hard material having a tapered tip, and a ring-shaped water stopping body made of a soft material having a through hole in the center, The driving body is inserted into the through hole of the water stopping body, and the outer peripheral surface of the driving body and the inner peripheral surface of the water stopping body are liquid-tightly bonded with a water-resistant adhesive, and a waterproof sheet is formed on the surface. And a mortar coating thickness equalizing member for driving the front end side of the driving body into an outer wall underlaying material on which a lath net is disposed, and for bringing the front end surface of the water stopping body into close contact with the waterproof sheet, the front end of the water stopping body When the mortar is applied to the lath net, the rear end surface of the implant is used as a mark for the mortar coating thickness. A mortar coating thickness uniformizing member is provided.

  In this case, in the present invention, the distance between the front end surface of the waterstop and the rear end surface of the driving body is 0.5 to 3 mm, particularly 1 to 2 mm shorter than the mortar coating thickness, and the mortar is applied to the lath net. Sometimes, it is preferable in that the rear end surface of the driving body is easily used as a mark for the mortar coating thickness.

  In the mortar coating thickness uniformizing member according to the present invention, since the waterstop is formed of a soft material, when the front end side of the driving body is driven into the outer wall underlaying material and the waterstop is adhered to the waterproof sheet, the waterstop Thus, no gap is formed between the waterproof sheet and the waterproof sheet, so that water does not pass through the gap between the adhesion base portion and the waterproof sheet as in the jig of Patent Document 1, and the water stoppage is not impaired. Therefore, the mortar coating thickness uniformizing member according to the present invention is excellent in waterstop.

  Moreover, the mortar coating thickness equalizing member according to the present invention forms the implant and the waterstop separately, and after inserting the implant into the through hole of the waterstop, the implant and the waterstop are Manufactured by bonding. Therefore, by changing the distance between the front end surface of the water stop body and the rear end surface of the drive body when the drive body is inserted into the through hole of the water stop body, the mortar coating thickness in which the distance is changed variously. A homogenizing member can be manufactured. Therefore, the mortar coating thickness uniformizing member according to the present invention has a small number of types of implants (usually one or two types having different lengths) and a few types (usually normal) in order to cope with various different mortar coating thicknesses Can be produced by reducing the manufacturing cost.

  The mortar coating thickness equalizing member according to the present invention can make the mortar coating thickness uniform by driving into the outer wall underlaying material during the construction of the mortar outer wall of the building, and is excellent in water-stopping and manufacturing. Cost can be reduced.

It is a front view which shows one Embodiment of the mortar coating thickness equalization member based on this invention. It is explanatory drawing which shows the construction procedure of the mortar outer wall using the mortar coating thickness equalization member of FIG. It is a typical horizontal sectional view which shows an example of the construction method of the conventional mortar outer wall.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the present invention is not limited to the following examples. FIG. 1 is a front view showing an embodiment of a mortar coating thickness equalizing member according to the present invention. In the mortar coating thickness equalizing member 50 of this example, 52 indicates a driving body and 54 indicates a waterstop.

  The driving body 52 has a rod shape (specifically, a cylindrical shape) in which a tip 56 is formed in a tapered shape (specifically, a conical shape). The driving body 52 is made of a hard material such as metal, hard resin, or ceramics. It is appropriate that the length a of the driving body 52 is 20 to 30 mm and the outer diameter b is 2 to 4 mm.

  The water blocking body 54 is a ring shape (specifically, a circular ring shape) having a through hole 58 in the center. The waterstop 54 is made of a soft material such as rubber, elastomer, or plastic. It is appropriate that the thickness c of the waterstop 54 is 2 to 4 mm and the outer diameter d is 5 to 10 mm. In addition, the inner diameter e of the waterstop 54 is preferably slightly smaller than the outer diameter b of the driving body 52.

  In the mortar coating thickness equalizing member 50 of this example, the driving body 52 is inserted into the through hole 58 of the water stop body 54, and the outer peripheral surface of the driving body 52 and the inner peripheral surface of the water stop body 54 are formed of a water-resistant adhesive. It is liquid-tightly bonded. As the water-resistant adhesive, known ones can be used as appropriate.

  In the mortar coating thickness equalizing member 50 of this example, the distance c + f between the front end surface of the waterstop 54 and the rear end surface of the driving body 52 makes the rear end surface of the driving body 52 a mark of the mortar coating thickness. In this respect, it is preferable to shorten the thickness of the mortar by 0.5 to 3 mm, particularly 1 to 2 mm. Further, the distance g between the front end surface of the water stop body 54 and the front end surface of the driving body 52 may be set to 8 to 12 mm in order to easily drive the mortar coating thickness uniformizing member 50 into the outer wall underlaying material. Is appropriate.

The construction procedure of the mortar outer wall of the building using the mortar coating thickness uniforming member 50 of this example is as follows (1) to (3).
(1) As shown in FIG. 2 (a), a lath net with a waterproof sheet is fixed to the outer wall underlaying material 12 with a lath fastener with the waterproof sheet 18 inside (both the lath mesh and the lath fastener are illustrated) (Omitted). This step is the same as the conventional step shown in FIG. In addition, although the lath net with the waterproof sheet is as described above, the lath net and the waterproof sheet may be separately constructed.
(2) As shown in FIG. 2 (a), a plurality of mortar coating thickness equalizing members are disposed on the outer sheet underlayer 12 having the waterproof sheet 18 and the lath net disposed on the surface from the waterproof sheet 18 at appropriate positions. The front end 56 side of 50 driving bodies 52 is driven, and the front end surface of the waterstop body 54 is brought into close contact with the waterproof sheet 18.
(3) As shown in FIG. 2B, the mortar outer wall 26 is constructed by applying the mortar 24 to the lath net. In this case, when the mortar 24 is applied to the lath net, the rear end face of the driving body 52 is used as a mark for the mortar coating thickness h. That is, the coating thickness h of the mortar 24 can be made uniform by applying the mortar 24 to such an extent that the rear end surface of the driving body 52 is hidden by the mortar 24 and cannot be seen.

  In addition, this invention is not limited to embodiment mentioned above, A various change is possible as needed. For example, the driving body may be a rod having a polygonal cross section, and the waterstop may be a ring having a polygonal cross section.

12 Outer wall underlaying material 16 Lath net 18 Waterproof sheet 24 Mortar 26 Mortar outer wall 50 Mortar coating thickness equalizing member 52 Placing body 54 Water stop body 56 Tip 58 Through hole

Claims (2)

  A rod-shaped driving body made of a hard material having a tapered tip, and a ring-shaped water-stopping body made of a soft material having a through-hole in the center, the driving body being inserted into the through-hole of the water-stopping body , The outer peripheral surface of the driving body and the inner peripheral surface of the waterstop body are liquid-tightly bonded with a water-resistant adhesive, and a waterproof sheet and a lath net are disposed on the surface. A mortar coating thickness equalizing member for driving the front end side of the driving body into close contact with the waterproof sheet, the front end surface of the water stopping body and the rear end surface of the driving body A mortar coating thickness equalizing member, characterized in that the distance between them is slightly shorter than the mortar coating thickness, and when the mortar is applied to the lath net, the rear end surface of the implant is used as a mark for the mortar coating thickness.   The mortar coating thickness equalizing member according to claim 1, wherein a distance between a front end surface of the waterstop and a rear end surface of the driving body is 0.5 to 3 mm shorter than a mortar coating thickness.

Images