JP6677681B2 - Joint structure - Google Patents

Description

  The present invention relates to a joint structure between a ceiling board and an inner wall board.

  Conventionally, at the time of interior decoration of a wooden building, an inner wall board provided along a pillar and a ceiling board provided along a ceiling edge are joined at an outer peripheral edge of the ceiling, and an inner wall board and a ceiling board are provided. An interior finishing material for the inner wall and an interior finishing material for the ceiling are attached to the surfaces on the indoor side, respectively (for example, see Patent Document 1).

  In such a configuration, at the beginning of construction, the edges where the interior finish of the inner wall and the interior finish of the ceiling are joined are stuck without gaps, but the wood base material may shrink due to drying, If the material deflection increases over time due to the load, the inner wall board and the ceiling board fastened to the wooden base also behave, and a gap occurs between the interior finish of the wall and the interior finish of the ceiling. May go on. In order to prevent such a gap, there has been proposed a method in which a metal connecting member is provided at a portion where a ceiling board and an inner wall board of a sloped roof abut against each other, and the ceiling board and the inner wall board are connected (Patent) Reference 2).

JP 2010-31553 A JP 2003-193617 A

  By the way, in a structure using a wooden pillar or a ceiling edge, it is necessary to pay attention to the natural properties of the tree and the shrinkage / deformation of the tree due to the decrease (dryness) of the water content. Wooden pillars arranged on the wall, wooden ceiling ridges laid over the outer periphery of the ceiling, or ridges arranged in parallel with the outer rim, or in the direction perpendicular to the outer ridge. The fixed wooden ceiling edges are deformed by shrinkage, warping, bending, twisting, etc. as each one dries. When wooden pillars and ceiling ridges shrink or deform, the fastened ceiling board and inner wall board can behave simultaneously. At that time, the ceiling board and the inner wall board may be displaced in a direction in which the ceiling board and the inner wall board are relatively separated from each other. If this gap is generated after the delivery of the house, the appearance of the interior of the room is impaired, and the occupants point out that the house is defective.

  Also, in recent years, in order to improve the fire resistance and airtightness of buildings, a structure in which a fire-resistant inner wall board is extended to a position above a beam above a ceiling board has been increasing. It is necessary to prevent the above-mentioned gap from being generated even in the case of a joint structure that can fit the inner wall board.

  Therefore, the present invention is a joint structure of a ceiling board and an inner wall board using a wooden pillar and a ceiling margin, and prevents relative displacement between the ceiling board and the inner wall board at the joint, An object of the present invention is to provide a joint structure that prevents a gap between finishing materials such as a cloth attached to a ceiling board and an inner wall board.

  The joint structure of the present invention is a joint structure between a ceiling board to which an interior finish of a ceiling is affixed and an inner wall board to which an interior finish of an inner wall is affixed. The inner wall board provided along, the ceiling board whose edge is in contact with the surface of the inner wall board opposite to the column material, and formed by being bent in cross-section, the opposite side of the inner wall board from the column material A bent portion made of steel having a vertical portion abutting on the surface of the ceiling board and a ceiling abutting portion abutting on the upper surface of the ceiling board; and an inner wall of the vertical portion abutting on the upper surface of the ceiling abutting portion. A wooden ceiling edge contacting the surface opposite to the board and the ceiling board, the ceiling contact portion, and an interval shorter than an installation interval of the column material that is screwed to the ceiling edge and jointly fastened. The ceiling fixing screw to be provided, the ceiling edge, the vertical portion, the front It is characterized in that the inner wall comprises boards, and, an inner wall fixing screws tightened together by screwed to the pillar.

  In addition to the above-described features, the joint structure of the present invention, between the inner wall fixing screws provided for each of the pillars, penetrates the ceiling ridge to fasten the vertical portion and the inner wall board. It is characterized by further comprising an inter-column fixing screw.

  Another form of the joint structure of the present invention is a joint structure between the ceiling board and the inner wall board to which the interior finish material of the inner wall is attached, and the wooden pillar material. A horizontal wooden ceiling edge adjacent to the column material, a ceiling contact portion formed by being bent in cross-section and abutting on the lower surface of the ceiling edge, and a vertical portion abutting on the indoor side surface of the column material. A bent material made of steel, the edge of the ceiling board abutting against the vertical portion, and the upper surface abutting on the ceiling abutting portion, the upper edge abutting on the lower surface of the edge side of the ceiling board, the vertical The inner wall board provided along a portion, the ceiling board, the ceiling contact portion, and a ceiling fixing screw provided at an interval shorter than an installation interval of the column material which is screwed to and fastened together with the ceiling ridge. And screwed to the inner wall board, the vertical portion, and the column material It is characterized by comprising an inner wall fixing screw for tightening, a.

  The joint structure according to the present invention, in addition to the above-described features, further includes an inter-column fixing screw for fastening the inner wall board to the vertical portion, between the inner wall fixing screws provided for each of the column members. And

  The joint structure according to the present invention is characterized in that the ceiling contact portion or the vertical portion of the bent material forms a hemming-bending reinforcing portion.

  According to the joint structure of the present invention, the vertical portion of the steel bent material comes into contact with the inner wall board, the ceiling contact portion of the steel bent material comes into contact with the ceiling board, and the ceiling rim has a ceiling contact. It abuts on the upper surface of the contact portion and abuts on the surface of the vertical portion on the opposite side to the inner wall board. Then, the ceiling fixing screw is screwed to the ceiling board, the abutting portion of the bent material, and the ceiling edge, and fastened together, and the inner wall fixing screw is the ceiling edge, the vertical portion of the bent material, the inner wall board, And it is screwed to the pillar and fastened together. The inner wall board and the ceiling board are firmly fastened not only to wooden pillars and wooden ceiling edges, but also to steel bent materials that do not undergo shrinkage deformation even when dried, thus forming an integrated structure. Even if wooden pillars or wooden ceiling margins move away from each other due to shrinkage due to drying or material deflection over time due to their own weight or load, the ceiling board and inner wall board are made of steel that does not shrink and deform. The joint between the ceiling board and the inner wall board does not separate because there is a continuous integral structure that is fastened with the bent material and screws, and there is a gap at the edge between the interior finish material of the ceiling and the interior finish material of the inner wall. It can be prevented from occurring. In addition, even if the building is shaken by wind pressure or seismic motion, and the joint between the wall and the ceiling is opened or displaced, the joint structure is as described above, so the joint between the ceiling board and the inner wall board The portions do not separate, and it is possible to prevent a gap from being generated at the edge between the interior finish of the ceiling and the interior finish of the inner wall. Further, according to the joint structure of the present invention, the edge of the ceiling board abuts the so-called inner wall board that abuts against the side surface of the inner wall board, so that the inner wall board can be stretched above the ceiling board, and the building can be extended. Can also improve the fire resistance and airtightness. In the construction, fixing the ceiling board to the wooden ceiling ridge by the ceiling fixing screw and fixing the inner wall board to the pillar by the inner wall fixing screw are necessary processes for fixing the ceiling board and the inner wall board. By simply adding a steel bending material installation process between the inner wall board and the ceiling ridge and between the ceiling board and the ceiling ridge, the interior finish material of the ceiling and the interior wall of the inner wall can be changed almost without changing the construction process. It is possible to prevent the occurrence of gaps between the edges, avoid the indication of a defect in the house after the delivery of the house, and achieve a joint structure capable of suppressing the occurrence of repair work.

  In addition, according to the joint structure of the present invention, between the inner wall fixing screws provided for each column member, there is further provided a column-to-column fixing screw for fastening the ceiling bezel, the vertical portion of the bent steel member, and the inner wall board. As a result, the ceiling ridge, the vertical portion of the steel bent material, and the inner wall board are fixed at intervals shorter than the interval between the pillars, and the integrated structure is continued between the pillars. Therefore, the displacement of the inner wall board or the ceiling board at the position between the pillars can be suppressed more effectively.

  Further, according to the joint structure of another embodiment of the present invention, the ceiling contact portion of the steel bent material abuts on the lower surface of the ceiling edge, and the vertical portion of the steel bent material is formed of a pillar material indoor. While being in contact with the side surface, the ceiling board is in contact with the lower surface of the ceiling contact portion, and the inner wall board is provided along the vertical portion. Then, the ceiling fixing screw is screwed together with the ceiling board, the ceiling contact portion of the steel bent material, and the ceiling edge, and the inner wall fixing screw is fixed to the inner wall board, the vertical portion of the steel bent material, Since the ceiling board and the inner wall board are screwed together and fastened together, the ceiling board and the inner wall board are firmly connected to each other even with a steel bent member, thereby forming an integrated structure. Even if wooden pillars or wooden ceiling margins shrink due to drying or material deflection over time due to their own weight or load, the inner wall boards and ceiling boards are made of steel that does not shrink and deform. The joint between the ceiling board and the inner wall board does not separate, and a gap is created at the edge between the interior finish of the ceiling and the interior finish of the inner wall because it is integrated with the bent material and the screw Can be prevented. In addition, even if the building is shaken by wind pressure or seismic motion, and the joint between the wall and the ceiling is opened or displaced, the joint structure is as described above, so the joint between the ceiling board and the inner wall board The portions do not separate, and it is possible to prevent a gap from being generated at the edge between the interior finish of the ceiling and the interior finish of the inner wall. In the construction, fixing the ceiling board to the ridge by the ceiling fixing screws and fixing the inner wall board to the pillars by the inner wall fixing screws are necessary processes for fixing the ceiling board and the inner wall boards. By simply adding a steel bending material installation process between the pillars and the ceiling board and ceiling edge, the gap between the edges of the ceiling interior finishing material and the interior wall interior finishing material can be changed without greatly changing the construction process. It is possible to provide a joint structure that can prevent the occurrence of the defect, avoid the indication of the defect of the house after the delivery of the house, and can suppress the occurrence of the repair work.

  Further, according to the joint structure of the present invention, between the inner wall fixing screws provided for each column member, there is further provided an inter-column fixing screw for fastening the vertical portion of the inner wall board and the steel bent member, so that the column member has The vertical portion of the steel bent material and the inner wall board will be fastened at intervals shorter than the interval, and the integrated structure of the inner wall board and the ceiling board can be continuous, so even at the position between the pillars The displacement of the inner wall board and the ceiling board can be suppressed more effectively.

  According to the joint structure of the present invention, the steel bent material, the ceiling contact portion or the vertical portion forms a reinforcing portion of the hemming bending, since the bending rigidity of the steel bent material can be increased, Higher effects can be expected. In this way, instead of increasing the overall thickness of the steel bent material and reinforcing it, instead of forming only one of the ceiling contact part and the vertical part, the ceiling fixing screw and the inner wall fixing When fastening the screw, one of the ceiling contact portion and the vertical portion is arranged to have a small plate thickness, and the workability when screwing the screw can be improved.

The figure which shows the vertical cross section of the position where the pillar of the joint part structure of 1st Embodiment was arrange | positioned. The figure which shows the vertical cross section of the position between the pillars of the joint part structure of 1st Embodiment. Partially omitted perspective view showing the appearance of the joint structure according to the first embodiment. The figure which shows the variation of a bending material. The figure which shows the construction method of the joint part structure of 1st embodiment. The figure which shows the example in which the pillar fixing screw was provided as a modification of the junction structure of the first embodiment. The figure which shows the vertical cross section of the joint part structure of 2nd embodiment. FIG. 6 is a partially omitted perspective view showing an appearance of a joint structure according to a second embodiment. The figure which shows the example in which the inter-column fixing screw was provided as a modification of the joint structure of the second embodiment.

(First embodiment)
Hereinafter, a first embodiment of a joint structure 1a according to the present invention will be described with reference to FIGS. The joint structure 1a is a structure used for the interior of a wooden building such as a wooden house, and is a structure used for a joint between the ceiling board 2 and the inner wall board 3.

  As shown in FIGS. 1 to 3, the joint structure 1 a includes a wooden pillar 4, an inner wall board 3 provided along the pillar 4, a ceiling board 2 whose edge abuts on the inner wall board 3, A steel bent member 5a formed by bending a cross section, a wooden ceiling edge 6, a ceiling fixing screw 7a for fixing the ceiling board 2 to the ceiling edge 6, and an inner wall board 3 are fixed to the column member 4. And an inner wall fixing screw 8a.

  The column member 4 is a long wooden square member whose column base is fixed to a lower beam or base (not shown) and whose column cap is fixed to an upper beam 10. The pillar 4 constitutes an outer wall sandwiched between the exterior material 11 and the inner wall board 3. In addition, the column member 4 of the present invention is not limited to the column supporting the outer wall, but may be a column constituting a partition wall.

  The inner wall board 3 is a surface material serving as a base on which the interior finishing material 17 of the inner wall of the room is adhered, such as a gypsum board having fire resistance. The inner wall board 3 is a rectangular surface material whose upper end extends over the beam 10 on the upper floor and whose lower end extends to the floor surface. In addition, in each figure of this embodiment, the lower end side of the inner wall board 3 is omitted for convenience of illustration. The ceiling board 2 is a surface material serving as a base on which the interior finishing material 16 for the ceiling is to be attached, and is a gypsum board or the like having fire resistance. The edge of the ceiling board 2 abuts on the surface of the inner wall board 3 opposite to the surface on the side of the pillar 4, extends in the horizontal direction, and is erected on the field edge. In each figure, for convenience of illustration, the end of the ceiling board 2 on the opposite side to the joint structure 1 is omitted. The interior finishing material 17 for the inner wall and the interior finishing material 16 for the ceiling are resin sheets, such as vinyl chloride, which are adhered to the inner wall board 3 and the ceiling board 2 via an adhesive layer, respectively. The interior finishing material 17 for the inner wall and the interior finishing material 16 for the ceiling are not limited to these, and may be made of a sheet made of fabric or paper, or may be painted and finished with plaster, diatomaceous earth, shirasu, plaster, paint, or the like. May be used.

  The bent member 5a is a long steel angle member having a vertical part 12a and a ceiling contact part 13a. The vertical portion 12a of the bent material 5a is arranged horizontally along the inner wall board 3 so as to abut on the surface of the inner wall board 3 opposite to the surface on the side of the column material 4, and the bent portion 5a The ceiling contact portion 13a is arranged at a height in contact with the upper surface of the ceiling board 2. The bent member 5a is made of a thin steel plate having a thickness of, for example, 0.4 mm, the height of the vertical portion 12a is 31.5 mm, the width of the ceiling contact portion 13a is 43.5 mm, and the length is, for example, 23.5 mm. .5 m. The size of the bent material 5a is not limited to this, and an appropriate size can be selected according to the strength required for the bent material 5a. The thickness of the bent member 5a is such that the ceiling fixing screw 7a and the inner wall fixing screw 8a can penetrate. Further, the bent member 5a is not limited to a steel plate having no unevenness, but may be, for example, one provided with unevenness. The bent material 5a is made of steel in which the vertical portion 12a and the ceiling contact portion 13a are integrated, but is not limited to only the steel material. It may be provided.

  The shape of the bent member 5a is not limited to a thin steel plate simply bent at a right angle into an L-shaped cross section as shown in FIG. Processing for reinforcement may be performed. For example, as shown in FIGS. 4B and 4C, one of the bent member 5 a made of steel may have one of the ceiling contact portion 13 a and the vertical portion 12 a forming the hemming-bending reinforcing portion 14. . If formed in this way, the ceiling contact portion 13a or the vertical portion 12a will be the reinforcing portion 14 having an increased thickness. Therefore, when the ceiling fixing screw 7a and the inner wall fixing screw 8a are made to penetrate, it is made of steel. In this case, the ceiling contact portion 13a or the vertical portion 12a of the bent member 5a is relatively thin, and the workability can be improved.

  The wooden ceiling edge 6 is a horizontal square member serving as a base for fixing the ceiling board 2, and is disposed in parallel with the inner wall board 3 with the vertical portion 12 a of the bent member 5 a made of steel interposed therebetween. The ceiling edge 6 is arranged on the outer periphery of the ceiling to which the ceiling board 2 is fixed. Although not shown, another horizontal member is vertically installed on the ceiling edge 6 to form a ceiling base. The ceiling edge 6 is arranged so as to contact the upper surface of the ceiling contact portion 13a of the bent member 5a made of steel and to contact the surface of the vertical portion 12a on the opposite side to the surface on the side of the inner wall board 3. .

  An inner wall fixing screw 8a is horizontally screwed from the indoor side to the inner wall board 3 at a position where the ceiling margin 6 overlaps with the pillar 4. The inner wall fixing screw 8a is screwed to the column member 4 through the ceiling edge 6, the vertical portion 12a of the bent member 5a made of steel, and the inner wall board 3. Thus, the inner wall board 3, the bent member 5 a made of steel, and the ceiling ridge 6 are fastened to the column 4 at intervals of the column 4.

  As shown in FIG. 2 and FIG. 3, the ceiling contact portion of the ceiling board 2 and the steel bent member 5a is provided on the lower surface of the ceiling edge 6 at a position shifted so as not to interfere with the inner wall fixing screw 8a. A ceiling fixing screw 7a penetrating through 13a is screwed. The ceiling fixing screw 7a is a wood screw having a length that can penetrate the ceiling edge 6, the ceiling contact portion 13a, and the inner wall board 3 at least in the horizontal direction and can be screwed to the ceiling edge 6. The ceiling fixing screws 7a are arranged, for example, at a pitch of 100 mm, whereby the ceiling board 2 and the bent member 5a made of steel are fixed at a pitch of 100 mm. Note that the interval between the ceiling fixing screws 7a is not limited to this, and it is sufficient that the screws 7a are arranged at least at intervals shorter than the interval between the column members 4.

  As described above, the inner wall board 3 is fastened to the vertical portion 12a of the steel bent member 5a by the inner wall fixing screw 8a, and the ceiling board 2 is fixed to the ceiling contact portion 13a of the steel bent member 5a. By being fastened at 7a, the inner wall board 3 and the ceiling board 2 are connected by the steel bent member 5a that does not cause shrinkage deformation, and a gap is formed between the inner wall board 3 and the ceiling board 2. It can be prevented from occurring.

  When constructing the joint structure 1a according to the first embodiment configured as described above, first, as shown in FIG. 5A, the inner wall board 3 is fixed to the column member 4 with screws (not shown). Ink marking is performed at the position where the ceiling edge 6 is installed on the inner wall board 3 from above. Then, the bent member 5a made of steel is arranged on the indoor side surface of the inner wall board 3. The bent member 5a made of steel is arranged such that the vertical portion 12a contacts the inner wall board 3 and the ceiling contact portion 13a projects horizontally from the lower end of the vertical portion 12a. At this time, the steel bent member 5a is temporarily fixed with, for example, a nail or the like to such an extent that the steel bent member 5a does not fall off the inner wall board 3. Thereafter, the ceiling bezel 6 is brought into contact with the surface of the vertical portion 12a of the steel bent member 5a opposite to the surface on the side of the inner wall board 3, and the upper surface of the ceiling contact portion 13a of the steel bent member 5a is formed. It is arranged so that it abuts. Then, as shown in FIG. 1 and FIG. 5A, the inner wall fixing screw 8a is screwed in a horizontal direction from the surface of the ceiling edge 6 opposite to the surface in contact with the vertical portion 12a. The inner wall fixing screw 8a is threaded through the ceiling edge 6, the vertical portion 12a of the bent member 5a made of steel, and the inner wall board 3 until it is screwed to the column member 4.

  When the steel bent member 5a and the ceiling ridge 6 are fastened to the column member 4 and the inner wall board 3 as described above, then, as shown in FIG. Abuts against the side surface of the inner wall board 3, and holds the ceiling fixing screw 7a horizontally so that the upper surface of the ceiling board 2 abuts on the lower surface of the ceiling abutting portion 13a of the bent member 5a made of steel. As shown in FIG. 2 and FIG. 5B, screws are inserted from below the ceiling board 2 so as to penetrate the ceiling board 2 and the ceiling contact portion 13a. The ceiling fixing screw 7a is screwed to the ceiling edge 6 to fasten the ceiling board 2 to the ceiling contact portion 13a and the ceiling edge 6. After that, the interior finish 17 of the inner wall is attached to the inner wall board 3 and the interior finish 16 of the ceiling is attached to the ceiling board 2, and the interior finish 17 of the inner wall and the interior finish 16 of the ceiling are abutted. A caulking process is performed along the edge to complete the joint structure 1a of the present embodiment.

  As described above, according to the joint structure 1a of the present embodiment, since the inner wall board 3 and the ceiling board 2 are firmly connected by the bent material 5a made of steel, the interior finish material 16 of the ceiling and the interior finish of the inner wall are provided. The generation of a gap at the edge with the material 17 can be prevented. In addition, since the inner wall board 3 wins, the inner wall board 3 can be extended above the ceiling board 2, and the fire resistance and airtightness of the building can be improved. Then, the bent member 5a made of steel can be fastened only with screws necessary for fixing the ceiling board 2 and the inner wall board 3 from the beginning, and the gap between the edges of the interior finishing material 16 of the ceiling and the interior finishing material 17 of the inner wall can be reduced. Occurrence can be prevented.

  The configuration of the present embodiment is not limited to the above-described configuration. For example, as shown in FIG. 6, the ceiling edge 6 is provided between the inner wall fixing screws 8 a provided for each column member 4. It may further include a column fixing screw 15a that penetrates and fastens the vertical portion 12a of the bent member 5a made of steel and the inner wall board 3. If the inter-column fixing screw 15a is provided in this manner, the vertical portion 12a and the inner wall board 3 can be fixed at an interval shorter than the interval between the column members 4 even at a location that does not overlap with the column member 4. The connection structure between the ceiling board 2 and the inner wall board 3 fastened with screws to the ceiling contact portion 13a of the bent member 5a made of steel can be formed continuously, and the interior finish material 16 of the ceiling and the inner wall of the inner wall can be formed. The generation of the gap between the edges of the interior finishing material 17 can be more reliably prevented.

  Although not shown, a turning edge may be provided below the ceiling board 2 and on the indoor side of the inner wall board 3. The surrounding edge is made of wood, for example, and is fixed to the ceiling board 2, the ceiling contact portion 13a, and the ceiling edge 6 by ceiling fixing screws 7a.

(Second embodiment)
Next, a second embodiment of the joint structure 1b according to the present invention will be described with reference to FIGS. Note that the same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted. In the joint structure 1b of the second embodiment, the upper edge of the inner wall board 3 abuts on the lower surface of the ceiling board 2 so that the ceiling board 2 wins.

  As shown in FIG. 7, the joint structure 1 b includes a wooden pillar 4, a horizontal wooden ceiling edge 6 adjacent to the pillar 4, a lower surface of the ceiling edge 6 formed by bending in cross section, and a pillar. A bent material 5b made of steel that abuts on the indoor side surface of the material 4, a horizontal ceiling board 2, an inner wall board 3 whose upper edge abuts on the ceiling board 2, and the ceiling board 2 is fixed to a ceiling edge 6. A ceiling fixing screw 7b and an inner wall fixing screw 8b for fixing the inner wall board 3 to the column member 4 are provided. In the joint structure 1b of the present embodiment, the column member 4 and the ceiling edge 6 may be in contact with each other. A sheet or a board material forming the inner wall surface of the upper floor may be interposed.

  Since the column member 4 has the same configuration as that of the first embodiment, the description is omitted. In addition, the ceiling edge 6 is a square member abutting on the column member 4 and erected horizontally. The bent member 5b made of steel is formed by bending in a sectional view, and the ceiling contact portion 13b contacts the lower surface of the ceiling ridge 6, and the vertical portion 12b contacts the indoor side surface of the column member 4, thereby forming the ceiling. It is a steel angle member that extends downward from the contact portion 13b. In the present embodiment, it is preferable that the vertical height of the vertical portion 12b of the bent member 5b is longer than the horizontal width of the ceiling contact portion 13b. Since the abutting portion between the ceiling board 2 and the inner wall board 3 is formed to win the ceiling board 2, the height at which the inner wall fixing screws 8b are screwed down is reduced by the thickness of the ceiling board 2 so that the vertical portion 12b is formed. And the inner wall board 3 is securely fixed.

  The ceiling board 2 and the inner wall board 3 are fire-resistant gypsum boards and the like, and the interior finishing material 16 for the ceiling and the interior finishing material 17 for the inner wall are respectively adhered thereto. The ceiling board 2 is horizontally arranged such that the edge thereof abuts on the vertical portion 12b of the bent member 5b made of steel and the upper surface abuts on the ceiling contact portion 13b. Further, the inner wall board 3 has an upper end edge in contact with the lower surface on the edge side of the ceiling board 2 and is arranged along the vertical portion 12b of the bent member 5b made of steel.

  The ceiling fixing screw 7b passes through the ceiling board 2 and the ceiling contact portion 13b of the steel bent member 5b from the lower surface of the ceiling board 2, and is screwed to the ceiling edge 6 to be fastened together. As shown in FIG. 8, the ceiling fixing screws 7 b are provided at intervals shorter than the installation interval of the column members 4. Further, the inner wall fixing screw 8b penetrates through the inner wall board 3 and the vertical portion 12b of the bent member 5b made of steel and is screwed to the column member 4, and is provided for each installation position of the column member 4. . Therefore, the ceiling board 2 is fastened to the ceiling contact portion 13b of the steel bent member 5b, and the inner wall board 3 is fastened to the vertical portion 12b of the steel bent member 5b. And the inner wall board 3 is firmly fastened by the bent material 5b made of steel, so that it is possible to prevent a gap from being generated at the edge between the interior finish material 16 on the ceiling and the interior finish material 17 on the inner wall.

  When constructing the joint structure 1b of the second embodiment, first, the ceiling edge 6 is fixed to the column member 4 with screws (not shown), and the steel bent member 5b is attached to the ceiling contact portion 13b. It is arranged so that the vertical part 12b may contact the lower surface of the edge 6 and the vertical part 12b may contact the indoor surface of the column member 4, and the steel bent member 5b is temporarily fixed to the column member 4 with a nail or the like (not shown). Then, the ceiling board 2 is arranged so that its edge abuts on the vertical portion 12b, and the upper surface abuts on the lower surface of the ceiling abutment portion 13b. It penetrates the contact part 13b and is screwed to the ceiling edge 6. Then, the inner wall board 3 is arranged so that the upper edge thereof abuts on the lower surface of the ceiling board 2 and abuts on the vertical portion 12b, and the inner wall fixing screw 8b is screwed into the inner wall board 3 so as to penetrate the vertical portion 12b from the inner wall board 3. Then, the inner wall fixing screw 8b is screwed to the column member 4. After that, the interior finish 17 of the inner wall is attached to the inner wall board 3 and the interior finish 16 of the ceiling is attached to the ceiling board 2, and the interior finish 17 of the inner wall and the interior finish 16 of the ceiling are abutted. A caulking process is performed along the edge to complete the joint structure 1b of the present embodiment. In this way, even if the ceiling board is two wins, the integrated structure is completed by simple construction, and a gap is prevented from being generated at the edge between the interior finish material 16 on the ceiling and the interior finish material 17 on the inner wall. it can.

  The configuration of the present embodiment is not limited to the above-described configuration. For example, as illustrated in FIG. 9, the inner wall board 3 is made of steel between the inner wall fixing screws 8 b provided for each column member 4. May be further provided with an inter-column fixing screw 15b to be fastened to the vertical portion 12b of the bent member 5b. If the column-to-column fixing screw 15b is provided in this manner, the vertical portion 12b and the inner wall board 3 can be fastened at a shorter interval than the interval between the column members 4 even at a portion that does not overlap with the column member 4. The connection structure between the ceiling board 2 and the inner wall board 3 fastened by screws to the ceiling contact portion 13b of the steel bent member 5b can be formed continuously, and the interior finish material 16 of the ceiling and the inner wall of the inner wall can be formed. The generation of the gap between the edges of the interior finishing material 17 can be more reliably prevented.

  It is needless to say that the embodiment of the present invention is not limited to the first embodiment and the second embodiment, and can be appropriately changed without departing from the scope of the concept of the present invention.

  The joint structures 1a and 1b according to the present invention can be suitably used, for example, as a structure of a joint between a ceiling board 2 and an inner wall board 3 of a wooden house.

1a, 1b Joint structure 2 Ceiling board 3 Inner wall board 4 Column material 5a, 5b Bending material 6 Ceiling edge 7a, 7b Ceiling fixing screw 8a, 8b Inner wall fixing screw 12a, 12b Vertical part 13a, 13b Ceiling contact part 14 Reinforcing parts 15a, 15b Fixing screws between pillars 16 Finishing material for ceiling (cloth, stucco, diatomaceous earth, shirasu, plaster, paint, etc., inner wall material)
17 Interior finishing materials for inner walls (cloths, plaster, diatomaceous earth, shirasu, plaster, paint and other inner wall materials)

Claims (5)

The joint structure between the ceiling board to which the interior finish of the ceiling is attached and the inner wall board to which the interior finish of the inner wall is attached,
Wooden pillars,
The inner wall board provided along the column material,
The ceiling board, the edge of which abuts against the surface of the inner wall board opposite to the pillar material,
A vertical portion that is formed by being bent in cross-section and abuts on a surface of the inner wall board opposite to the column material, and a steel bent member having a ceiling abutting portion that abuts on an upper surface of the ceiling board,
A wooden ceiling edge which abuts on the upper surface of the ceiling abutting portion and abuts on the surface of the vertical portion opposite to the inner wall board,
The ceiling board, the ceiling contact portion, and a ceiling fixing screw provided at an interval shorter than an installation interval of the column material to be screwed and fastened to the ceiling ridge, and
A joint structure comprising: the ceiling rim, the vertical portion, the inner wall board, and an inner wall fixing screw that is screwed to the column material and fastened together.   2. The apparatus according to claim 1, further comprising an inter-column fixing screw that penetrates through the ceiling edge and fastens the vertical portion and the inner wall board, between the inner wall fixing screws provided for each of the column members. 3. 3. The joint structure according to 1. The joint structure between the ceiling board to which the interior finish of the ceiling is attached and the inner wall board to which the interior finish of the inner wall is attached,
Wooden pillars,
A horizontal wooden ceiling edge adjacent to the pillar,
A steel bent member formed by being bent in cross-section and having a ceiling contact portion that contacts the lower surface of the ceiling edge and a vertical portion that contacts the indoor side surface of the column member,
The ceiling board having an edge abutting on the vertical portion and an upper surface contacting the ceiling contact portion,
The upper edge touches the lower surface on the edge side of the ceiling board, and the inner wall board provided along a vertical portion,
The ceiling board, the ceiling contact portion, and a ceiling fixing screw provided at an interval shorter than an installation interval of the column material to be screwed and fastened to the ceiling ridge, and
A joint structure comprising: the inner wall board, the vertical portion, and an inner wall fixing screw that is screwed to the column material and fastened together.   The joint structure according to claim 3, further comprising an inter-column fixing screw for fastening the inner wall board to the vertical portion, between the inner wall fixing screws provided for each of the column members.   The joint structure according to any one of claims 1 to 4, wherein the ceiling contact portion or the vertical portion of the bent member forms a hemming-bending reinforcing portion.

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