JPH0325149A - Architectural joint member and its forming method - Google Patents

Abstract

PURPOSE:To improve water-proof property and sound-proof property by arranging substrates placed between an external wall member and a backing member, and by setting a joint member mainbody fitted in a joint, vertically to the substrates. CONSTITUTION:On plate-shaped substrates 5 formed with the elastic material of rubber or the like, a joint member main-body 6 is formed vertically and integrally to form a joint member A. Besides, the core member 7a of a reinforcing member 7 formed with a metallic plate is embedded in the joint member main-body 6, and plate sections 7b are fitted in the bottom surfaces of the substrates 5, and the joint member A is reinforced. Then, to a backing member 12 fitted on a building wall surface, the substrates 5 of the joint member A are butted. Besides, both the end sections of an external wall member 1 are pushed against the substrates 5, and in a state that the main body 6 is fitted in a joint 4 formed between adjacent external wall members 1, the external wall members 1 are fixed on the backing member 12.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a joint material for construction that is inserted into a joint formed by an external wall material whose upper and lower ends have stepped portions for joining; and its molding method. In addition,
In this specification, "fitting" refers to inserting and fitting a specific item into a groove-shaped portion.

[Conventional technology]

Some rectangular exterior wall materials that are attached to the walls of buildings have a structure in which a step is provided at the top and bottom for joining. That is, as shown in FIG.
are provided, and the upper and lower exterior wall materials 1 are joined by overlapping each stepped portion 2a, 2b of the exterior wall material 1. Since the lengths La and Lb of the stepped portions 2a and 2b provided at the upper and lower ends of the outer wall material l are different, the lengths La and Lb of the stepped portions 2a and 2b are different at the joint portion of the upper and lower outer wall materials l. A groove portion 3 having a width (Lc) corresponding to the difference in Lb is formed in the lateral direction. The reason why the grooves 3 are formed in the horizontal direction at the vertical joints of the exterior wall material 1 in this manner is solely to enhance the design of the building wall surface. Then, joints 4 are formed in the vertical direction between the laterally adjacent exterior wall materials 1, and a joint material is inserted between the joints 4,
This joint 4 part is intended to be waterproof, but if a conventional joint material having the same height over the entire length is inserted into the joint 4, the joint material may partially protrude at the connection part of the groove 3. Put it away. With such a structure, the joints 4 at the connecting portions of the grooves 3 are not sufficiently waterproof, reducing their waterproof properties, and the wind collides with the joint material protruding at the connecting portions of the grooves 3. An abnormal noise occurs,
Moreover, the protrusion of the joint material damages the appearance of the building's exterior walls. [Problems to be Solved by the Invention] The present invention provides a method for attaching an exterior wall material having a joining step at the upper and lower ends thereof to a building wall surface. By preventing the joint material from protruding from the joints of the grooves formed laterally in the horizontal direction, the waterproof and soundproofing properties of the joints at the joints of the grooves that are continuous in the horizontal direction are improved, and the appearance of the external wall of the building is improved. This was done with the aim of making it better.

[Means to solve the problem]

In the construction joint material according to the present invention, a step portion for joining is provided at the upper and lower ends, and by overlapping the step portions and joining them in the vertical direction, a groove portion is formed in the horizontal direction at the joint portion. A T-shaped architectural joint material for fitting into a joint vertically formed between laterally adjacent exterior wall materials when exterior wall materials having such a structure are attached to a building wall surface, It consists of a substrate sandwiched between the exterior wall material and the base material, and a joint material body that is provided perpendicularly to this substrate and inserted into the joint, and the joint material body has a recessed portion on the upper surface. A low height portion whose height is reduced by the depth of the groove is provided with a pinch corresponding to the groove, and the groove is formed laterally at the vertical joint portion of the exterior wall material. , the joint material body is inserted between the joints with the low height portions of the joint material body aligned with each other. Further, in the method for forming a joint material for construction according to the present invention, a shutter can be moved along the height direction of the joint material main body at the molded part of the joint material main body in the extrusion opening provided in the front surface of the extrusion molding die. By intermittently moving the shutter along the height direction of the joint material body during extrusion, the joint material body extruded from the extrusion opening has a height lower than other parts. The feature is that the low height portion is formed with a predetermined pinch.

[Action of the invention]

The low height part of the joint material body is formed with a pinch that corresponds to the groove formed in the vertical joint part of the exterior wall material, so the low height part of the joint material body is lower than the other parts. Insert the main body of the joint material into the joint formed between the horizontally adjacent external wall materials by aligning the recess formed in the groove with the groove formed laterally in the vertical joint of the external wall materials. It can be fitted. For this reason, the joint material no longer protrudes from the connecting part of the groove formed horizontally in the vertical joint part of the external wall material, and the waterproof and soundproof properties of the joint in this area are improved, and the joint material between the upper and lower parts of the external wall material Since the grooves formed at the directional joints are continuous in the lateral direction, the external appearance of the building's outer wall is improved.

Furthermore, the method for forming a joint material according to the present invention includes a molding portion of the joint material body in an extrusion opening provided at the front surface of an extrusion molding die, so that a shaft is movable along the height direction of the joint material body. By intermittently moving the shutter along the height direction of the joint material body during installation and extrusion, the joint material with the above structure can be continuously extruded, so that the joint material body has a lower part than other parts. The low-height portions are formed at a predetermined pitch, making it possible to manufacture joint material having partially different cross-sectional shapes at low cost.

〔Example〕

Examples will be given below regarding the architectural joint material (hereinafter simply referred to as joint material) according to the present invention, and the method for forming the same.
Let me explain in more detail. In addition, we will avoid duplicating explanations with parts explained in the "Prior Art" section, and use the same reference numerals for parts that are the same as those explained in the same section. The joint material A according to the present invention is molded from an elastic material such as rubber or resin, and as shown in FIGS. 6 and 7, it is attached to a flat substrate 5 and The vertical joint material main body 6 is integrally formed. The reinforcing material 7 is a curved or shaped metal plate,
Flat plate parts 7b are integrally provided on both sides of the inverted U-shaped core part 7a,
It is something that was given. The core part 7a of the reinforcing material 7 is the joint material main body 6
At the same time, the flat plate portion 7b is attached to the bottom surface of the substrate 5 to reinforce the joint material A.

Projections 8 are provided at the upper ends of both sides of the joint main body 6, respectively.
are provided to project perpendicularly to the side surfaces, and elastically deformable seal lips 9 are provided at the center of both sides of the joint main body 6 to project at an angle toward the substrate 5 side. Board 5
An elastically deformable seal lip 11 is provided on the upper surface of the joint material body 6 to incline and project therefrom.

As explained in the "Prior Art" section, the upper and lower ends of the rectangular exterior wall material 1 are formed with step portions 2a and 2b that correspond to each other and have different lengths. As shown in FIG. 5, when the stepped portions 2a and 2b are overlapped and the outer wall material 1 is joined in the vertical direction, grooves 3 are formed at a pitch P along the horizontal direction in the joined portion. The width of this groove portion 3 is <Lc), and the depth thereof is (D).

The joint material main body 6 of the joint material A has a low height portion 6 that is lower in height than other parts by forming a concave portion lO on the upper surface.
a is provided with the same bit P as the groove portion 3. The height of the joint body 6 excluding the low height part 6a is (H,)
If the height of the low height portion 6a is (H!) (see FIGS. 1 to 3), the difference is equal to the depth ([)) of the groove portion 3, and Joint material body 6
The length of the low height portion 6a is equal to the width of the groove portion 3<(1
-c). Projections 8 that are continuous with other parts are also protruded from the upper ends of both sides of the low height part 6a of the joint main body 6.

As shown in FIGS. 1 to 3, with the base 5 of the joint material 8 in contact with the lower pond material 12 attached to the wall surface of the building, both ends of the outer wall material 1 in the lateral direction are is pressed against the substrate 5 of the joint material A, and the main body 6 of the joint material A is inserted into the joint 4 formed between the laterally adjacent exterior wall materials l, and the exterior wall material l is placed on the base material. Fix it to l2. In this case, the groove portion 3 formed in the vertical joint portion of the outer wall material 1 is made to coincide with the recess portion 10 provided in the low height portion 6a of the joint material main body 6. In addition, the groove part 3
and joint 4 are perpendicular to each other. In this way, the joint material main body 6 does not protrude from the connection part of the groove 3 formed in the vertical joint part of the exterior wall material 1, and as shown in FIG. Since the protrusions 8 protruding from both sides of the low-height portion 6a of the main body 6 are in elastic contact with the joint wall surface 1a of the exterior wall material 1, the waterproofness of this portion is increased and the appearance of the exterior wall of the building is also good. becomes. In addition, since there is no protruding part of the joint material body 6 in the groove portion 3, ventilation is improved and abnormal noises are eliminated.
Therefore, the soundproofing properties are also improved. In addition, in the above embodiment, the case where the exterior wall material 1 is attached to the building wall surface is explained so that the joints 4 are almost vertical. Groove portion 3 formed in the vertical joint portion of material l
The joint material A according to the present invention can also be used when the exterior wall material 1 is attached to the wall surface of a building in such a way that the surface is inclined relative to the horizontal line. Next, a method for forming the joint material 8 will be described with reference to FIGS. 8 to 10.

The extrusion molding die 13 is heated by a heater l4, and an extrusion opening 15 for extruding the joint material A together with the reinforcing material 7 is provided on the front surface of the extrusion molding die l3. A shutter 17 is attached to the molded part of the joint main body 6 of the opening 15 by a shutter holder l6.
is attached so as to be movable along the height direction of the joint material main body 6. The shape of this extrusion opening 15 is the shape of a certain joint material A. Above the shutter shutter 17 is a linear motion converting device 19 for converting the rotation of the drive motor 8 into linear motion and moving the shutter 17 up and down.
is installed.

Then, the heated and plasticized raw material resin is passed through the nozzle 21.
When the extrusion molding die 13 is supplied to the extrusion molding die 13
The reinforcing material 7 is inserted through the extrusion opening 15 formed on the front surface of the
joint material A is formed by extruding the joint material A. Here, when the shutter 17 is intermittently lowered by the linear interlocking conversion device 19 in accordance with the extrusion molding speed of the joint material A, a recess 10 is formed on the upper surface of the main body 6 of the joint material A with the target binch P. As a result, a low height portion 6a having a lower height than other portions is formed in the joint main body 6. [Effects of the Invention] According to the joint material according to the present invention, a step portion for joining is provided at the upper and lower ends, and by overlapping the step portions and joining in the vertical direction, a horizontal groove is formed in the joint portion. When installing an exterior wall material with a structure in which a Since the joint material can be inserted into the joints formed between the joints, it is possible to improve the waterproofness and soundproofing of the joints of exterior wall materials where grooves are formed horizontally at the joints in the vertical direction. As the value increases, the appearance of the building's outer wall improves. Further, according to the joint material forming method according to the present invention, by intermittently moving the shunter attached to the front surface of the extrusion opening of the extrusion die along the height direction of the joint material body, Since it is possible to form a joint material in which low-height parts that are lower in height than other parts are formed at a predetermined pitch on the main body of the joint material, a joint material with such a structure can be formed at low cost.

[Brief explanation of drawings]

FIG. 1 is a partially enlarged perspective view of a state in which a joint material A according to the present invention is inserted into a joint 4 formed between joint wall surfaces 1a of laterally adjacent exterior wall materials 1, and FIGS. The figures are a cross-sectional view taken along lines 1 and 1 in Figure 1, and mm-m, respectively. Figure 4 is a partially enlarged perspective view showing the vertical joints of the exterior wall material 1, and Figure 5 is a cross-sectional view showing the upper and lower sides. A perspective view of the exterior wall material 1 joined in the direction, FIG. 6 is a perspective view of the joint material A, and FIG.
Similarly, FIG. 8 is a front view of the molding device for joint material A, FIG. 9 is a right side view, and FIG. Shutter 17 for explaining that 10 is formed
This is an enlarged front view of the part shown below, and explanations of the symbols of the main parts that make up the present invention are as follows. A: Joint material l: Exterior wall material 1a: Joint wall surfaces 2a, 2b of exterior wall material: Joining step portions 3 provided at the upper and lower ends of the exterior wall material: Horizontally formed at the vertical joint portion of the exterior wall material Groove 4: Joint 5: Substrate 6: Joint main body 6a: Low height part IO of joint main body: Recess 13 formed on the top surface of joint main body: Extrusion molding guide

Claims (2)

[Claims] (1) Build an exterior wall material with a structure in which a step for joining is provided at the upper and lower ends, and by overlapping the steps and joining in the vertical direction, a groove is formed horizontally at the joint. A T-shaped architectural joint material that is inserted into a nearly vertical joint formed between horizontally adjacent exterior wall materials when installed on a building wall surface, and is used to fit into the joint that is formed almost vertically between the exterior wall materials and the base material. It consists of a substrate sandwiched between the substrates and a joint material body that is provided perpendicularly to the substrate and is inserted into the joint. is provided with a pitch corresponding to the groove, the low-height portion being lowered by the depth of the groove,
A construction characterized in that the groove portion formed in the horizontal direction in the vertical joint portion of the exterior wall material is aligned with the low height portion of the joint material body, and the joint material body is inserted between the joints. Joint material for use. (2) Attach a shutter movably along the height direction of the joint material body to the molded part of the joint material body in the extrusion opening provided on the front surface of the extrusion molding die, and attach the shutter to the joint material body during extrusion. By intermittently moving the main body along the height direction, it is possible to form, at a predetermined pitch, low height parts that are lower in height than other parts on the joint material main body extruded from the extrusion opening. Characteristic molding method for architectural joints.