JP2024055441A - Joint structure - Google Patents

Abstract

[Problem] To provide a joint structure that allows easy confirmation that an upper convex portion at one end of one building board is appropriately positioned in an upper concave portion at the other end of the other building board. [Solution] In this joint structure, a groove 371 is formed at the joint by an upper convex portion 11 at one end of one building board 1-1 and an upper concave portion 37 at the other end of the other building board 1-2, and a fixing member groove 365 for positioning a fixing member S is formed on the upper surface of the lower convex portion 36 at the other end that faces the underside of the upper convex portion 11 at one end. [Selected Figure] Figure 4

Description

This disclosure relates to a joining structure.

As a joining structure for joining the ends of adjacent building panels, for example, a joint structure in which the panels are joined by interlocking is known (see, for example, Patent Document 1).

JP 2003-213881 A

In conventional configurations, one building board is joined to the other building board by fitting an upper convex portion at one end of one building board into an upper concave portion at the other end of the other building board. In contrast, there may be cases where the upper convex portion at one end of one building board does not completely fit into the upper concave portion at the other end of the other building board, but only partially fits together to form a gap (groove). In such cases, it is not easy to check whether the upper convex portion at one end of one building board is positioned appropriately in the upper concave portion at the other end of the other building board.

The present disclosure aims to provide a joining structure that makes it easy to confirm that the upper convex portion at one end of one building board is appropriately positioned in the upper concave portion at the other end of the other building board.

The present disclosure relates to a joint structure in which the ends of adjacent building boards are joined together, the ends of the building boards include one end having an upper convex portion and a lower concave portion, and the other end having an upper concave portion and a lower convex portion, the upper convex portion of the one end of one of the building boards fits into the upper concave portion of the other end of the other building board, and the lower convex portion of the other end of the other building board fits into the lower concave portion of the one end of the one building board, the lower surface of the upper convex portion of the one end and the upper surface of the lower convex portion of the other end come into contact and are pressed together to form a joint, a groove is formed in the joint by the upper convex portion of the one end of one of the building boards and the upper concave portion of the other end of the other building board, and a groove for a fixing member is formed in the upper surface of the lower convex portion of the other end that faces the lower surface of the upper convex portion of the one end.

1 is a side view showing building boards joined by the joining structure of the first embodiment. FIG. 3 is a side view showing one end of a building board joined by the joining structure of the first embodiment. FIG. 4 is a side view showing the other end of the building board joined by the joining structure of the first embodiment. FIG. A side view showing a state in which one end of one building board joined by the joining structure of the first embodiment is fitted into the other end of another building board. A side view showing a state in which one end of one building board joined by the joining structure of the first embodiment is not properly fitted into the other end of the other building board. 13 is an explanatory diagram showing a groove for a fixing member formed in a building board joined by a joining structure of a second embodiment. FIG. 13 is an explanatory diagram showing grooves for fastening members formed in building boards joined by a joining structure of a third embodiment. FIG. 13 is an explanatory diagram showing grooves for fastening members formed in building boards joined by a joining structure of a fourth embodiment. FIG. A side view showing one end of one building board joined by a joining structure of a modified example of this embodiment, fitted into the other end of another building board.

The first embodiment of the present disclosure will be described in detail below with reference to the drawings. The joint structure in this embodiment is a joint structure in which the ends of adjacent building boards 1, i.e., one end and the other end, are joined together to form a joint that is a tongue and groove portion. In the following description, the direction from the bottom surface to the top surface of the building board 1 in Figure 1 is defined as the upward direction, and the opposite direction is defined as the downward direction.

The building board 1 in this embodiment is an interior panel that is placed on the walls, floors, and ceilings of a room and fixed to the walls and floors with finish nails or the like, and is used to enhance the design of the walls and floors. The building board 1 is made of MDF (medium density fiberboard), figured board, hard resin board made of polypropylene, polyethylene, or the like, and the thickness of the building board 1 is, for example, about 5.5 mm.

Sheet 2 is attached to almost the entire upper surface of building board 1. More specifically, sheet 2 covers the entire upper surface of building board 1, and at one end of building board 1, sheet 2 is provided to cover the entire upper surface of upper convex portion 11 described below to the upper end side upper inclined surface 111, up to the part of lower surface 113 of upper convex portion 11 facing fixing member groove 365 described below, and at the other end of building board 1, sheet 2 is provided to cover the edge of upper surface 363 of the other end of lower convex portion 36 described below.

One end and the other end of the building board 1 are subjected to a jointing process. Specifically, as shown in FIG. 1, the building board 1 has an upper portion 10 and a lower portion 30. The upper portion 10 has an upper convex portion 11 that protrudes outward from the building board 1 (to the left in FIG. 1) at one end of the building board 1. As shown in FIG. 2, the end face at the protruding end of the upper convex portion 11 is configured with an upper inclined surface 111 on the one end side that slopes away from the one end of the building board 1 as it goes downward, i.e., slopes toward the left in FIG. 2 as it goes downward.

Because the upper convex portion 11 protrudes from one end of the upper portion 10, a lower recess 12 is formed in the lower portion of the upper convex portion 11, which is recessed relatively toward the center of the building board 1, i.e., toward the right side in Figs. 1 and 2. The end face of the lower portion 30 forming the lower recess 12 is configured with a one-end side inclined surface 311, as shown in Fig. 2, which inclines away from the center of the building board 1 as it goes downward, i.e., toward the left in Fig. 2 as it goes downward. The acute angle formed by the lower surface 313 of the lower portion 30 and the one-end side inclined surface 311 is smaller than the acute angle formed by the lower surface 113 of the upper portion 10 and the one-end side upper inclined surface 111.

The lower part 30 has a lower convex part 36 at the other end of the building board 1 that protrudes outward from the building board 1 (to the right in FIG. 1). As shown in FIG. 3, the end face at the protruding end of the lower convex part 36 is configured with an other end side inclined surface 361 that inclines downward toward the center of the building board 1, i.e., in the leftward direction in FIG. 3, as it proceeds downward. The acute angle between the upper surface 363 of the lower part 30 and the other end side inclined surface 361 is equal to the acute angle between the lower surface 313 of the lower part 30 and the one end side inclined surface 311.

Because the lower convex portion 36 protrudes from one end of the lower portion 30, the upper portion of the lower convex portion 36 has an upper recess 37 that forms a space that is recessed relatively toward the center of the building board 1, i.e., toward the left side in Figs. 1 and 3. The end face of the upper portion 10 that forms the upper recess 37 is configured by an upper inclined surface 161 on the other end side that slopes away from one end of the building board 1 as it moves downward, i.e., slopes toward the right in Fig. 3 as it moves downward, as shown in Fig. 3.

As described later (see FIG. 4, etc.), a groove 365 for a fixing member is formed in the upper surface 363 of the lower convex portion 36 at the other end of the other building board 1-2 that abuts against the lower surface 113 of the upper convex portion 11 at one end of the first building board 1-1, in order to place a finish nail S as a fixing member to be driven by a finish nailer. The entire groove 365 for a fixing member is arranged so as to fit within the range indicated by A in FIG. 4, that is, within the range between the tip 112 of the upper convex portion 11 and the connection point 362 between the lower surface 313 of the lower portion 30 and the inclined surface 361 at the other end. The position within this range is the position where the groove 365 for a fixing member is covered and hidden by the upper convex portion 11 at one end of the first building board 1-1. If the groove 365 for the fixing member is positioned to the right of the range indicated by A in FIG. 4, the finish nail S may be driven into the inclined surface 361, resulting in poor construction in which the inclined surface 311 of the first building board 1-1 and the inclined surface 361 of the second building board 1-2 are not securely joined. By positioning the groove 365 for the fixing member in the range indicated by A, such poor construction can be suppressed, and the inclined surface 311 of the first building board 1-1 and the inclined surface 361 of the second building board 1-2 can be securely abutted and joined. The groove 365 for the fixing member is formed in a V-shape in cross section when viewed in the width direction, which is a direction perpendicular to the longitudinal direction of the building board 1, as shown in FIG. 3, etc.

The depth of the groove 365 for the fixing member is preferably a depth that can accommodate the head of the finish nail S without protruding from the upper end of the groove 365 for the fixing member. This is to prevent the head of the finish nail S from abutting against one building board 1-1 and not reliably joining the one building board 1-1 and the other building board 1-2 in the state where the head of the finish nail S does not protrude from the upper end of the groove 365 for the fixing member in the groove 365 for the fixing member, thereby suppressing the occurrence of poor construction. The depth of the groove 365 for the fixing member is preferably 0.5 mm or more. This is because if it is less than 0.5 mm, it is difficult to visually confirm. In addition, the depth of the groove 365 for the fixing member is preferably 1/3 or less of the thickness of the lower convex portion 36. This is because if it exceeds 1/3 of the thickness of the lower convex portion 36, it is considered that the lower convex portion 36 is easily damaged. The opening width of the upper end of the groove 365 for the fixing member is preferably an opening width that is easy for the installer (worker) to visually confirm. For example, when the depth of the groove for fixing member 365 is 0.5 mm, if the opening width at the upper end of the groove for fixing member 365 is less than 0.5 mm, the opening width is too small and the groove for fixing member 365 is difficult to see, and if the opening width exceeds 5 mm, the inclination of the side surface of the V-shaped groove for fixing member 365 becomes close to horizontal, making the groove for fixing member 365 difficult to see.

As shown in FIG. 4 etc., in order to secure the building board 1 to a wall or floor, a finish nail S is driven vertically downward into the fixing member groove 365 by a finish nailer, and the head of the finish nail S is positioned and fitted into the fixing member groove 365. This makes it possible to securely secure the building board 1 to a wall or floor.

Next, the joining structure of the joint formed by joining one end of one building board 1-1 to the other end of the other building board 1-2 will be described. The underside 313 of the lower part 30 of the other end of the other building board 1-2 is fixed to a floor or the like (not shown) with adhesive. In addition, a finish nail S is driven into the fixing member groove 365 on the upper side 363 of the lower part 30 of the other end of the other building board 1-2 with a finish nailer, and the lower part 30 of the other end of the other building board 1-2 is fixed to a floor or the like (not shown) with the finish nail S.

As described above, one end of the first building board 1-1 is joined to the other end of the building board 1-2 after the other building board 1-2 is fixed to a floor or the like (not shown), forming a joint structure of the joint. That is, after the other building board 1-2 is fixed to a floor or the like (not shown), the first building board 1-1 is slid against the floor or the like (not shown) relative to the other building board 1-2 so that the lower convex portion 36 of the other building board 1-2 fits into the lower concave portion 12 of the first building board 1-1. At this time, adhesive is applied to the lower surface 313 of the lower portion 30 of the building board 1-1 in advance, and in this state, the lower surface 313 of the lower portion 30 of the building board 1-1 slides against the floor or the like (not shown). Then, when the one end side inclined surface 311 abuts against the other end side inclined surface 361, the sliding is stopped, and in this state, the lower surface 313 of the lower portion 30 of the first building board 1-1 is fixed to the floor or the like (not shown) by adhesive. As a result, the underside 113 of the upper protrusion 11 at one end of the first building board 1-1 and the upper side 363 of the lower protrusion 36 at the other end of the other building board 1-2 come into contact and are pressed together. After this, a finish nail S is driven into the fixing member groove 365 on the upper side 363 of the lower part 30 at the other end of the first building board 1-1 by a finish nailer, and the lower part 30 at the other end of the first building board 1-1 is fixed to a floor or the like (not shown) by the finish nail S.

In this way, when the first building board 1-1 and the other building board 1-2 are fixed to a floor or the like (not shown), the fixing member groove 365 and the finish nail S of the other building board 1-2 are covered by the upper convex portion 11 of the first building board 1-1 as shown in FIG. 4, and therefore cannot be seen from the outside of the first building board 1-1 and the other building board 1-2. This makes it possible to avoid the design being impaired by the fixing member groove 365 and the finish nail S.

In addition, in the case of poor construction where the one end side inclined surface 311 does not abut the other end side inclined surface 361, as shown in Figure 5, the fixing member groove 365 and the finish nail S are visible from the outside of the first building board 1-1 and the other building board 1-2. Therefore, by forming the fixing member groove 365, it becomes possible to easily visually confirm a poor construction state where the one end side upper inclined surface 111 does not abut the other end side inclined surface 361 and the first building board 1-1 and the other building board 1-2 are not securely joined.

In addition, because the one end side inclined surface 311 abuts the other end side inclined surface 361, it is possible to configure the one end of one building board 1-1 and the other end of the other building board 1-2 to engage with each other so that the joint does not come loose, making it possible to create a strong joint structure.

A groove 371 is formed by the upper convex portion 11 at one end of the first building board 1-1 and the upper concave portion 37 at the other end of the other building board 1-2. More specifically, as shown in FIG. 4, the groove 371 is formed so as to be surrounded by the upper inclined surface 111 at one end of the upper convex portion 11 of the first building board 1-1, the upper surface 363 of the lower portion 30 at the other end of the other building board 1-2, and the upper inclined surface 161 at the other end of the other building board 1-2. This makes it possible to improve the design.

Next, a second embodiment of the present disclosure will be described. In the second embodiment, the shape of the groove 365A for the fixing member differs from the shape of the groove 365 for the fixing member in the first embodiment. The rest of the configuration is the same as in the first embodiment, so the same members are given the same reference numerals and the description will be omitted.

As shown in FIG. 6, the groove 365A for the fixing member of the building board 1A is formed in a semicircular shape and is formed in a size that allows the tip T of the finish nailer that drives the finish nails to be inserted. Therefore, even when construction is performed in a relatively dark place, the tip T of the finish nailer can be easily inserted into the groove 365A for the fixing member, and the finish nail can be driven in in this state, which results in the finish nail being driven in with high precision.

Next, a third embodiment of the present disclosure will be described. In the third embodiment, the shape of the groove 365B for the fixing member differs from the shape of the groove 365 for the fixing member in the first embodiment. The rest of the configuration is the same as in the first embodiment, so the same members are given the same reference numerals and the description is omitted.

As shown in FIG. 7, the groove 365B for the fixing member of the building board 1B is formed by a bottom surface 3651B that is one step lower than the top surface, and an inclined surface 3652B that connects the bottom surface 3651B and the inclined surface 3652B. Therefore, even when construction is carried out in a relatively dark place, it is possible to drive the finish nail with high precision by sliding the tip T of the finish nailer in contact with the bottom surface 3651B and driving the finish nail at the position where the tip T of the finish nailer abuts the inclined surface 3652B.

Next, a fourth embodiment of the present disclosure will be described. In the fourth embodiment, the shape of the groove 365C for the fixing member differs from the shape of the groove 365C for the fixing member according to the first embodiment. Other than this, the configuration is the same as in the first embodiment, so the same members are given the same reference numerals and the description is omitted.

As shown in FIG. 8, the groove 365C for the fixing member of the building board 1C is formed by a bottom surface 3651C that is one step lower than the top surface, and a vertical surface 3652C that connects the bottom surface and the vertical surface 3652C. Therefore, even when construction is performed in a relatively dark place, it is possible to drive the finish nail with high precision by sliding the tip T of the finish nailer in contact with the bottom surface 3651C and driving the finish nail at the position where the tip T of the finish nailer contacts the vertical surface 3652C. When the tip T of the finish nailer contacts the vertical surface 3652C, the tip T of the finish nailer contacts the vertical surface 3652C instead of the inclined surface, making it easy to see the contact state and making it difficult for the contact state to come off.

This disclosure is not limited to the above-described embodiments, and includes modifications, improvements, etc., within the scope that achieves the objectives of this disclosure.

For example, in this embodiment, the upper convex portion and the lower concave portion are configured by the upper convex portion 11 and the lower convex portion 36, but are not limited to these. Also, the finishing nails are driven into the grooves for the fixing members 365, etc. by a finishing nailer, but are not limited to these. For example, the nails may be driven into the grooves for the fixing members by a nail gun, and the power source for the finishing nailer and the nail gun may be air supplied from a compressor, combustion gas, air compressed by an electric motor, spring force compressed by an electric motor, etc.

In addition, in this embodiment, the acute angle between the lower surface 313 of the lower portion 30 and the one end side inclined surface 311 is smaller than the acute angle between the lower surface 113 of the upper portion 10 and the one end side upper inclined surface 111, but this configuration is not limited to this. For example, the acute angle between the lower surface 313 of the lower portion 30 and the one end side inclined surface 311 may be equal to the acute angle between the lower surface 113 of the upper portion 10 and the one end side upper inclined surface 111. Alternatively, the acute angle between the lower surface 313 of the lower portion 30 and the one end side inclined surface 311 may be larger than the acute angle between the lower surface 113 of the upper portion 10 and the one end side upper inclined surface 111.

In addition, in this embodiment, the finish nails S are driven by the finish nailer T, but this is not limited to this. For example, staples may be driven using a stapler, screws or bolts may be driven, or nails may be driven manually. Furthermore, the direction in which the finish nails S, staples, nails, etc. are driven is not limited to vertically downward, but may be diagonally.

In this embodiment, as shown in FIG. 9, the building boards 1-1D and 1-2 may be configured in different shapes. Specifically, one end of the building board 1-1D is configured in a different shape from one end of the building board 1-2. That is, the upper inclined surface 111D on the one end side is configured as a vertical flat surface. In FIG. 9, the other end side inclined surface 361 and the one end side inclined surface 311D are configured as inclined surfaces, but this is not limited thereto, and they may be configured as vertical flat surfaces instead of inclined surfaces, like the upper inclined surface 111D on the one end side. In addition, the building boards 1-1 and 1-2 may be configured from surface materials made of different materials. Specifically, for example, one of the building boards 1-1 and 1-2 may be configured from a surface material such as MDF, and the other may be configured from tiles.

Reference Signs List 1 Building board, 11 Upper convex portion, 12 Lower concave portion, 36 Lower convex portion, 37 Upper concave portion, 113 Lower surface, 311 One end side inclined surface, 361 Other end side inclined surface, 363 Upper surface, 365 Groove for fixing member, 371 Groove, S Finish nail, T Finish nailer

Claims (4)

A joining structure in which the ends of adjacent building boards are joined together,
The end portion of the building board includes one end portion having an upper convex portion and a lower concave portion, and the other end portion having an upper concave portion and a lower convex portion,
The upper convex portion of one end of one of the building boards fits into the upper concave portion of the other end of the other building board, and the lower convex portion of the other end of the other building board fits into the lower concave portion of the one end of the one of the building boards, and the lower surface of the upper convex portion of the one end and the upper surface of the lower convex portion of the other end abut and are pressed together to form a joint,
A groove is formed at the joint by the upper convex portion at the one end of one of the building boards and the upper concave portion at the other end of the other building board,
A joining structure in which a fixing member groove for locating a fixing member is formed in a portion of the upper surface of the lower convex portion of the one end portion that faces the lower surface of the upper convex portion of the other end portion. The joining structure according to claim 1, wherein the entire groove for the fixing member is positioned so as to be covered and hidden by the upper protrusion of the one end. The end face of the one end forming the lower recess of the one end has a one end side inclined surface that inclines downward so as to move away from the center of the building board,
The end face of the other end forming the tip of the lower convex portion of the other end has an inclined surface on the other end side that is inclined downward so as to approach the center of the building board,
The joining structure described in claim 1, wherein the one end side inclined surface and the other end side inclined surface abut against each other when the lower surface of the upper convex portion of the one end of one of the building boards and the upper surface of the lower convex portion of the other end of the other building board abut and are pressed together. The fixing member is a finish nail driven by a finish nailer.
The joining structure according to claim 1 or 2, wherein a head of the finish nail is disposed in the groove for the fixing member.

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