JP2006112222A5 - - Google Patents

Claims (10)

A main material 2 is provided in parallel along the ceiling surface, and a secondary material 3 that intersects the main material 2 is provided between the adjacent main materials 2 and 2 in parallel along the ceiling surface. In the ceiling frame structure in which the secondary material 3 is connected to the main material 2 by abutting the side surface of the main material 2,
In the connecting portion C between the secondary material 3 and the main material 2, grooves 12 a and 13 a having upward openings are respectively provided at the lower side portions of the main material 2 and the secondary material 3, and the grooves 12 a of the main material 2 and the secondary material 3 are provided. A downward L-shaped fixing member is provided on the same side upper part as 13a, and by attaching the fixing member, grooves 12b and 13b having downward openings on the same side upper part as the grooves 12a and 13a of the main material 2 and the auxiliary material 3 are provided. To be formed,
The cross-sectional L-shaped metal fitting 10 is positioned on the side where the main material 2 and the sub-material 3 are abutted, and the bent edge of the cross-sectional L-shaped metal fitting 10 is positioned on the side abutting edge of the main material 2 and the sub-material 3. In addition to fitting, the lower edges 10a, 10a of the L-shaped metal fitting 10 are fitted into the grooves 12a, 13a at the lower side of the side surface, and the fixing member is attached to the main material 2 and the sub-material 3 from the fixing member. A ceiling frame structure, wherein the upper edges 10b, 10b of the L-shaped metal fitting 10 are fitted into the grooves 12b, 13b.   The downward L-shaped fixing members are connected to face each other to form downward U-shaped fixing members 20 and 30, and the downward U-shaped fixing members 20 and 30 are connected to the main material 2. The ceiling frame structure according to claim 1, wherein grooves 12 b and 13 b of the downward opening are formed on both side surfaces of the auxiliary material 3.   The cross-sectional L-shaped metal fitting 10 sandwiches the secondary material 3 and is applied to both sides of the abutting side surfaces of the main material 2 and the secondary material 3 of the connecting portion C so as to face each other. The metal members 10 and 10 are connected to each other by extending the main material surface 10x along the main material 2 to the rear of the end surface of the auxiliary material 3, and the fixing member of the main material 2 is connected to the extended connection portion 10c. The ceiling frame structure according to claim 1, wherein the ceiling frame structure is provided. The lower end portion of the main material 2 is provided with a receiving portion 5 protruding in the width direction over the entire length in the length direction, and the lower end surface of the auxiliary material 3 is brought into contact with the side surface of the receiving portion 5 of the main material 2, grooves 12a of the upward opening provided in the main member 2, the ceiling frame structure according to any one of claims 1 to 3, characterized in that provided above said receiving part 5.   A shock absorber 11a made of an elastic material is attached to the lower end surface of the secondary material 3, and the side surface of the receiving portion 5 of the main material 2 and the lower end surface of the secondary material 3 are brought into contact with each other through the shock absorber 11a. The ceiling frame structure according to claim 4.   A receiving portion 6 that protrudes in the width direction over the entire length in the length direction is provided at the lower end of the auxiliary material 3 at the same height as the receiving portion 5 of the main material 2, and the buffer 11 a The ceiling frame structure according to claim 5, wherein the ceiling frame structure is attached to an end face of the receiving portion 6.   The cross-sectional L-shaped metal fitting 10 sandwiches the secondary material 3 and is applied to both sides of the abutting side surfaces of the main material 2 and the secondary material 3 of the connecting portion C so as to face each other. The ceiling frame according to any one of claims 4 to 6, wherein a connecting plate 10d in the vertical direction is provided between the metal fittings 10 and 10, and an upper end surface of the auxiliary member 3 is brought into contact with the connecting plate 10d. Construction.   The ceiling frame structure according to claim 7, wherein an upper end surface of the auxiliary member 3 and the connecting plate 10 d are brought into contact with each other via a buffer body 11 b made of an elastic material.   The upper edges 10b and 10b of the L-shaped metal fitting 10 are flush with the upper surfaces of the main material 2 and the sub material 3 in the attached state, and the fixing member of the main material 2 and the fixing member of the sub material 3 9. The ceiling frame structure according to any one of claims 1 to 8, characterized in that each abuts against the upper edges 10b, 10b of the L-shaped metal fitting 10 in cross section. Bolts 23, 33 in the vertical direction are inserted into the downward L-shaped fixing member, and the bolts 23, 33 are directed upward to the upper end portion 7 of both the main members 2 or the upper end portion 8 of the auxiliary member 3. It fits in the inverted T-shaped long grooves 22 and 32 provided so as not to be pulled out upward, and the downward L-shaped fixing member is connected to the main material 2 and the auxiliary material via the bolts 23 and 33. The ceiling frame structure according to claim 1, wherein the ceiling frame structure is fixed to the material 3.