JPH0611302Y2 - Bonding structure of mortar base material - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to a structure for joining two mortar base materials on an outer wall surface by a gusset plate.

<Prior Art> Conventionally, in order to bond two mortar base materials on an outer wall surface, a bonding structure in which a gusset plate made of plywood or an iron plate is laid across the two mortar base materials is used.

<Problems to be solved by the invention> However, the gusset plate made of plywood is inevitably thick from the viewpoint of strength, and when mortar finishing is performed, the mortar is thinly applied on the gusset plate, and cracks occur on the surface. It was caused or the mortar was peeled off.

When using a gusset plate made of iron plate,
The gusset plate cannot be nailed to stop the lath and cannot be applied with mortar.

That is, the conventional joint structure deteriorates the performance of the outer wall mortar.

<Means for Solving Problems> The present invention has been devised to solve the above problems, and has a structure in which two abutted mortar base materials are joined by a gusset plate. That is, according to this invention, a band-shaped gusset plate covering the abutting portions of two mortar base materials is arranged along the abutting portions to join the two base materials together, and the gusset plate is short. A plurality of groove-shaped ribs in the width direction are integrally provided to form a corrugated shape that is uneven along the longitudinal direction, and the bottom surface of the rib is abutted in a state of being spanned between the two mortar base materials. The bottom surface is nailed to two mortar base materials with headed nails, and mortar locking pockets opening in the short width direction of the gusset plate are formed between adjacent ribs of the gusset plate and between the mortar base materials. The joint structure of the mortar base material is formed.

In addition, when the mortar joint strength is further improved, the head of the headed nail is floated and nailed by using a nail having a different diameter.

<Operation> By providing a plurality of ribs over the entire width of the strip-shaped gusset plate, the bonding strength is secured without increasing the thickness of the gusset plate itself, and between the adjacent ribs of the gusset plate and two base materials. Since a mortar locking pocket that opens in the short width direction of the gusset plate is formed in the space between and, a strong mortar locking action can be obtained when the mortar is applied to this portion and dried. .

When the head of the headed nail is floated and attached to the nail, the mortar provided in the ribs wraps the head of the nail, so that the joint strength is enhanced.

<Embodiment> An embodiment of the present invention will be described below with reference to the drawings.

The figure is a schematic perspective view showing a joint structure of a mortar base material.

As shown in the figure, this joining structure joins two mortar base materials 1 and 2 which are butted together by a strip-shaped gusset plate 3 arranged along the butted portion.

The gusset plate 3 is a long plate made of metal such as iron, stainless steel, aluminum, and the surface thereof is a so-called anchoring surface on which a ridge or a long groove G is formed or a mesh is formed so that the mortar adheres thereto. There is. Therefore, the gusset plate 3 has a function as a lath.

Further, ribs 4 and 4 having long grooves in the widthwise direction are integrally formed on the gusset plate 3 at appropriate intervals, and these ribs 4 and 4 do not increase the thickness of the gusset plate 3 itself. The gusset plate 3 is bulged on the back surface. Further, each of the ribs 4, 4 is provided with two nail fastening holes 41, 41 arranged side by side in the short width direction.

When the two butted mortar base materials 1 and 2 are joined together, a waterproof caulking material C is filled in advance at the butted boundary, and the bottom surfaces of the ribs 4 and 4 are placed on top of the two mortar base materials. 1 and 2 are abutted in a state of being laid across, and nailed holes
The gusset plate 3 is nailed with the heads of the headed nails floated by the headed different diameter nails N, N ...

Further, although not shown, the head of the headed nail can be driven to the bottom surface of the ribs 4 and 4 using a normal nail.

As a result of the attachment of the rib bottom surface by the headed nail having such an arbitrary structure, the portion of the gusset plate 3 where the rib is not provided is held at a position separated from the surfaces of both mortar base materials 1 and 2.
Thereby, the adjacent ribs 4, 4 of the gusset plate 3 are
A mortar locking pocket 5 that opens in the short width direction of the gusset plate 3 is formed between the four and both mortar base materials, and mortar (not shown) applied thereto is well received and locked.

Actually, thickness 0.4mm, short width 60mm, rib pitch 120
When the mortar base materials 1 and 2 were joined using a stainless steel gusset plate 3 and the joint strength was examined,
22 of gusset plate made of conventional 5.5mm thick plywood
A bonding strength of 0% was obtained, and a bonding strength of about 120% of a gusset plate made of a flat iron plate having a thickness of 0.5 mm was obtained.

<Advantages of the Invention> As described above, according to the joining structure of the present invention, a plurality of ribs in the width direction are provided on the gusset plate to secure the joining strength without increasing the thickness of the gusset plate itself, and Mortar is applied between the adjacent ribs of the gusset plate and between the base materials and the mortar locking pockets, as well as the ribs, so that the mortar can bite into and reliably apply the mortar, so that the durability of the outer wall mortar can be improved and the performance of the outer wall mortar can be improved.

Further, the joining structure of the present invention has a great mortar locking function by the mortar locking pocket between the ribs adjacent to each other of the gusset plate and the base material, and is particularly suitable for the method of finishing the outer wall mortar without using laths. Therefore, the construction cost can be significantly reduced.

Further, when the head of the headed nail is floated in the grooved rib and attached, the mortar joint strength is further enhanced.

[Brief description of drawings]

The figure is a schematic perspective view showing a joint structure of a mortar base material. 1, 2 ... mortar base material, 3 ... gusset plate, 4 ... ribs, N ... nails, 5 ... mortar locking pocket.

Claims (2)

[Scope of utility model registration request] 1. A structure in which a strip-shaped gusset plate covering the abutting portions of two mortar base materials is arranged along the abutting portions to join the two base materials together, and the gusset plates are arranged in the width direction. A plurality of grooved ribs are integrally formed into a corrugated shape, and the bottom surface of the rib is abutted in a state of being laid between two mortar base materials, and the bottom surface is headed to two mortar base materials. Mortar base material joining structure characterized by forming a mortar locking pocket open in the width direction of the gusset plate between the adjacent ribs of the gusset plate and between the two mortar base materials by nailing. . 2. The joint structure for a mortar base material according to claim 1, wherein the head of the headed nail is floated and nailed.