JPH071157U - Joint Joiner for Wallboard - Google Patents

Abstract

(57) [Summary] [Purpose] An object of the present invention is to obtain a joint joiner for a wall plate, in which the joint portion of the wall plate on the cut-off end face can be treated very easily and the waterproof property can be maintained for a long period of time. In a joint portion of the wall plates 7 joined together by abutting the cut-off end surfaces 7A, a thin strip-shaped strip inserted along the joint portion between the back surface 7B of the wall plate 7 and the base material 8 joined together A pair of ribs 2 and 2 which are erected parallel to each other in the widthwise central band of the substrate 1 with a joint interval h of the joints, and a band-shaped organic foam elastic material attached to the outer side surfaces of the ribs 2 and 2. Between the pair of ribs 2 and 2 of the base material 3, on the back surface of the base material 3 composed of the bodies 2B and 2B and the band-shaped molded body 4 composed of the soft material fitted in the joint between the wall plates 7 and 7. The joint filler 6 is provided with a leg portion 5 that is snap-fitted, and engaging step portions 2A and 5A that engage with each other are provided on the inner surface of the pair of ribs 2 and 2 and the side surface of the leg portion 5. The joint joint process is completed only by the fitting work.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a joint joiner for wall boards, and more particularly to a joint joiner for wall boards at a joint portion of wall boards where cut-off end faces are butted and joined.

[0002]

[Prior art]

 Conventionally, inorganic wallboards such as fiber reinforced cement boards have been widely used as building wallboards. This seed wall plate has the advantage that it can be mass-produced with the same material and shape, and it also has the advantage that it contributes to nature conservation because it consumes almost no natural resources like wood. By the way, since these inorganic wall plates have the characteristics that the material is hard and difficult to process, these wall plates have the joining end faces P and P as shown in FIG. 3 from the viewpoint of easy joining and waterproofing. It is carried out in advance to provide a gouged joining step Q, Q. However, since the joining step is usually provided on the long side of the wall plate and the short side is the cut-off end face T as shown in FIG. 4, the backup material R is filled between the joints in this part. Waterproofing was performed by filling the sealing material S above.

[0003]

[Problems of conventional technology]

 Therefore, the joint construction on the cut-off end face is a filling work of the viscous sealing material, which is troublesome, and if the viscous sealing material may adhere to the surface of the wall plate adjacent to the joint, the portion is soiled. There was a drawback that the surface of the wallboard was unsightly. Further, the above-mentioned joint material sometimes contracts and hardens due to deterioration over time, and this causes a joint breakage and the like, resulting in a loss of waterproofness.

[0004]

[Problems to be solved by the device]

 In view of the above problems, the present invention has been made with the object of providing a joint joiner for wallboards in which the treatment of the joints of the wallboards on the cut-off end face is extremely easy and the waterproofness can be maintained for a long period of time. It is a thing.

[0005]

[Means for Solving the Problems]

 That is, the joint joiner A for wallboards of the present invention has the joint between the backboard 7B of the wallboard and the base material 8 which are joined together at the joints of the wallboards 7 which are joined together by abutting the cut-off end faces 7A. A pair of ribs 2 and 2, which are erected parallel to each other at a joint interval h of the joint portion, in the widthwise central zone of a thin plate-shaped substrate 1 inserted along the joint portion, and the ribs 2 and 2 On the back surface of the base material 3 composed of the strip-shaped organic foam elastic body 2B, 2B attached to the side surface, and the strip-shaped molded body 4 made of the soft material fitted in the joint between the wall plates 7, The joint filler 6 is provided with a pair of ribs 2 and 2 of the member 3 and a leg portion 5 that is fitted between the ribs 2 and 2 in a snap shape. The inner surface of the pair of ribs 2 and 2 and the side surface of the leg portion 5 are engaged with each other. It is characterized in that the engaging step portions 2A and 5A are provided.

[0006]

【Example】

 Next, an embodiment of this invention will be described. 1 is a sectional view of an embodiment of the present invention, and FIG. 2 is a sectional view showing a usage state.

The joint joiner A for wallboards according to the present invention is such that the backsides 7B and 7B of the wallboards and the base material 8 which are joined to each other are jointed to each other at the joints of the wallboards 7 where the cut-off end faces 7A and 7A are butted against each other. And a pair of ribs 2 and 2 which are erected parallel to each other in the widthwise central band of the thin plate-shaped substrate 1 interposed between On the back surface of the base material 3 composed of the strip-shaped organic foam elastic bodies 2B and 2B attached to the outer surfaces of the ribs 2 and 2, and the strip-shaped molded body 4 of the soft material fitted in the joint between the wall plates. , A joint filler 6 provided with a pair of ribs 2 of the base member 3 and a leg portion 5 fitted in a snap shape between the ribs 2 and 2, and the inner surface of the pair of ribs 2 and 2 and the side surface of the leg portion 5 are provided. Engaging step portions 2A and 5A that engage with each other are provided and configured.

In the above embodiment, the base material 3 is molded by injection molding or extrusion molding of plastic, and the height of the pair of ribs 2, 2 is lower than the wall plate thickness and lower than the wall plate thickness. The height is higher than the back side engagement step of the joining step provided on the other side of. The joint filler 6 is also made of the same material, but the band-shaped molded body 4 is made of a soft material that elastically deforms as shown in FIG. 2 when it is pressed into a narrow joint space. The strip-shaped organic foam elastic bodies 2B and 2B attached to the outer side surfaces of the ribs 2 and 2 are elastic that are easily compressed and deformed when the cut-off end surfaces 7A and 7A of the wall plate 7 are abutted to each other as described later. It is assumed to have a sealant, and is used by being impregnated with a sealing agent or the like as needed.

[0009]

[Action]

 To use the joint joiner A for wallboards of the present invention, the base material 3 is placed along the joints of the wallboards 7, 7 to be abutted on the base material 8 to which the waterproof sheet 8A is previously attached, The end faces 7A, 7A of the wall plate are abutted against the pair of ribs 2, 2 of the base member 3. At this time, the band-shaped organic foam elastic bodies 2B, 2B are compressed and deformed to seal the gap, and at the same time, the joint distance h is regulated by the pair of ribs 2, 2 so that a certain joint is formed. Next, the leg portion 5 of the joint filler 6 is inserted between the pair of ribs 2 and 2 and forced into the joint. At this time, the leg portion 5 is snap-fitted by the engagement with the engagement step portions 2A, 5A of the pair of ribs 2, 2 and cannot be easily removed, and the band-shaped molded body 4 is curved and deformed between the joints. Seal the joint gap. Therefore, the gap between the cut-off end faces is completely sealed by a simple fitting operation.

[0010]

[Effect of device]

 As described above, the present invention can easily and reliably perform joint clearance when filling a wall plate with a cut-off end face that is not provided with a joining engagement step portion, without filling work such as a sealant. If the base material 3 is accurately arranged, the joint distance between the wall plates is regulated by the pair of ribs 2 and 2, and the gap is formed by the organic foam elastic bodies 2B and 2B. Since it is sealed, it has various practical effects such as accurate wallboard installation with good waterproofness.

[Brief description of drawings]

FIG. 1 is a sectional view of an embodiment of the present invention.

FIG. 2 is a sectional view showing a usage state of the embodiment of the present invention.

FIG. 3 is a sectional view of a conventional example.

FIG. 4 is a sectional view of a conventional example.

[Explanation of symbols]

 A ... Joint joiner for wall plate 1 ... Thin plate-shaped substrate h ... Joint spacing 2 ... Rib 2A ... Engagement step 2B ... Band-shaped organic foam elastic body 3 ... Base material 4 ... Band-shaped molded body made of soft material 5 ... Leg portion 5A ... Engaging step portion 6 ... Joint filler 7 ... Wall plate 7A ... Cut-off end face 7B ... Wall plate back surface 8 ... Base material

Claims (1)

[Scope of utility model registration request] 1. A thin plate-like member which is inserted along a joint between a back surface 7B of a wall plate and a base material 8 which are joined to each other at joints of the wall plates 7 which are joined to each other by abutting the cut-off end faces 7A. A pair of ribs 2 and 2 which are erected parallel to each other on the central strip in the width direction of the strip-shaped substrate 1 with the joint interval h of the joints, and the strip-shaped organic foam adhered to the outer surface of the ribs 2 and 2. Between the pair of ribs 2 and 2 of the base material 3, on the back surface of the base material 3 including the elastic bodies 2B and 2B, and the strip-shaped molded body 4 including the soft material fitted in the joint between the wall plates 7 and 7. A joint filler 6 provided with a leg portion 5 that is snap-fitted to the inner side of the pair of ribs 2 and 2 and a side surface of the leg portion 5 with engaging step portions 2A and 5A engaging with each other. A joint joiner for wallboards characterized by being formed.