JPS6224646Y2 - - Google Patents

Description

[Detailed explanation of the idea] 【Technical field】

The present invention relates to a connection structure for ceiling crossbars that can be constructed with good earthquake resistance to structural members such as the edges and main bars around the crossbars that receive ceiling panels.

[Background technology]

When constructing ceiling panel A, attach the surrounding edges to the wall surface, install the main bar between the surrounding edges, and then install the crossbar between the surrounding edges and the main bar and between the main bars. There is a construction method in which the ceiling board A is mounted on the lower overhang piece provided on the surrounding edge or main bar, which is a structural material for holding the cross bar, and the lower overhang piece provided on the cross bar, but conventionally, for example, As shown in FIGS. 1 and 2, the upper rib 10 of the cross bar 1, one end of which is mounted on the lower overhang piece 3 of the structural member 2, is attached to the upper horizontal structural member 16, such as a C channel, with a wire. It was held between hanging fittings 14 which are suspended from 15 and the like. In the figure, 18 is a hanging bolt, and 17 is a channel hanger. With the above structure, many parts are required to hold the crossbar 1, which makes construction difficult. In addition, the crossbar 1 may come off from the structural member 2 due to vibration, such as when an earthquake occurs. In case, number 15
The load of the ceiling board A and the crossbar 1 must be supported by the ceiling board A, which has the disadvantage that there is a high risk of the ceiling board A falling.

[Purpose of invention]

The present invention was devised in view of these points, and its purpose is to securely connect the crossbar to structural members such as the surrounding edges and the main bar with a small number of parts for holding the crossbar. The purpose of the present invention is to provide a connection structure for a ceiling crossbar with improved earthquake resistance.

[Disclosure of invention]

Therefore, the present invention has a cross bar having a lower overhang piece for holding a ceiling plate that projects laterally on the lower edge, and an upper rib that projects laterally on the upper edge,
It consists of a structural member such as a surrounding edge and a main bar that has a lower overhang piece that protrudes laterally on the lower edge, and a jointer that connects the cross bar and the structural member, and the main bar opens upward at the lower side of the main bar. The jointer is provided with a lower groove that is L-shaped in plan view, and has a lower engaging part that fits into the lower groove of the structural member, and an upper bent part that engages with the upper end surface of the structural member, The other piece of the jointer is characterized in that it includes a fitting piece and a horizontal piece that receive the lower surfaces of both sides of the upper rib of the cross bar, the end of which rests on the lower overhang piece of the structural member. The present invention will be described in detail below based on illustrated embodiments. First, to explain the shape of the crossbar 1 and the surrounding edges and main bar that are the structural members 2 to which it is connected, the crossbar 1 has an approximately inverted T-shape in cross section, and as shown in Fig. It is formed from a piece 19, a lower projecting piece 13 projecting from the lower end of the rising piece 19 to both sides, and an upper rib 10 in the shape of a rectangular tube formed at the upper end of the rising piece 19. The ceiling plate A is supported with its end placed on the lower overhang piece 13 of the cross bar 1. Structural material 2
As shown in FIGS. 3 and 5, the peripheral edge has an L-shaped cross section, and includes a vertical piece 7 and a lower overhanging piece 3 that protrudes from the lower end of the vertical piece 7 to one side. The base of the lower overhang piece 3 is provided with a lower groove 8 that opens upward, and one side of the upper edge is provided with an upper groove 20 that opens downward and faces the lower groove 8. The main bar serving as the structural member 2 has a shape in which the above-mentioned surrounding edges are joined back to back.
The lower projecting piece 3 projects on both sides of the vertical piece 7, and the vertical piece 7 is provided with a lower groove 8 and an upper groove 20 on both sides, respectively. These structural members 2 and crossbars 1 are
connected by. As shown in FIG. 4, this jointer 4 has an L-shaped planar shape with two pieces perpendicular to each other, and the lower edge of one piece 5 serves as a lower engaging portion 21 that fits into the lower groove 8. A locking pawl 22 that fits into the upper groove 20 is formed in the middle by cutting and bending an L-shaped piece, and an upper folding pawl 22 that locks on the upper end surface of the vertical piece 7 is further formed in the upper part. Music section 1
2 is also formed by cutting and raising. Here, the locking pawl 22 and the lower engaging part 21 are arranged vertically, whereas the upper bent part 12 is located on the side edge of this piece 5 on the opposite side to the connection side with the other piece 6. As shown in Figure 5,
It is formed as a piece that projects diagonally downward. Further, the lower part of the side edge of the piece 5 is cut out diagonally to form an oblique side. The other piece 6 of the jointer 4 has a projecting piece 11 on its upper part that receives the lower surface of one side of the upper rib 10 of the cross bar 1;
A fitting piece 9 that surrounds the upper rib 10 and receives the lower surface of the other side of the upper rib 10 is integrally formed by bending. It should be noted that the jointers 4 are used as a pair of left-right symmetrical ones. When the cross bar 1 is installed, for example, between the surrounding edge and the main bar, the upper rib 10 of the cross bar 1 is placed in the space surrounded by the fitting piece 9 and the projecting piece 11 of the jointer 4. The jointers 4, 4 are attached to both ends of the cross bar 1 by inserting them into the cross bar 1, respectively. Next, with the oblique side of each jointer 4 parallel to the lower groove 8, the upper groove 20 facing vertically in the structural member 2, which is the edge and main bar, is placed around one piece 5 of the jointer 4.
and the lower groove 8, and then the positioner 4,
4 and crossbar 1 to fit the locking pawl 22 into the upper groove 20 and fit the lower engaging part 2 into the lower groove 8.
Insert 1. At this time, the upper bent portion 12 of the jointer 4 is once bent with respect to the structural member 2, and then is locked to the upper end surface of the structural member 2. Figures 3 and 5 show when the structural member 2 is the surrounding edge, and Figure 7 shows the structural member 2.
indicates when is the main bar. As a result, the jointer 4 contacts the structural member 2 at three points: the upper bent portion 12, the locking pawl 22, and the lower engaging portion 21, and the jointer 4 contacts the crossbar 1 at the lower surfaces of both sides of the upper rib 10. It touches at two points. The jointer 4 is slidable in the longitudinal direction of the structural member 2 and the longitudinal direction of the crossbar 1, as shown by arrows in FIG. 3, but is fixed in other directions.

[Effect of the idea]

As described above, in this invention, the crossbar is directly connected to structural members such as the surrounding edges and the main bar using jointers, so the conventional suspension structure is not required, which reduces the number of parts and makes construction easier. It is a simple method that takes a short time, and there is no need for leveling, which is required when using a suspended structure to connect the crossbar directly to the structural material, making it easy to construct in this respect as well. Even if the crossbar were to come off the lower overhang of the structural member during an earthquake, the jointer would prevent the crossbar and ceiling board from falling.

[Brief explanation of the drawing]

Figures 1 and 2 are front and side views of the conventional example;
Fig. 3 is a cutaway perspective view of an embodiment of the present invention, Fig. 4 is a perspective view of the above-mentioned jointer, Figs. It is a cross-sectional view at a certain time, 1 is a crossbar, 2
3 is a structural member, 3 is a lower overhang piece, 4 is a jointer, 5 is one piece, 6 is another piece, 8 is a lower groove, 9 is a fitting piece, 10 is an upper rib, 11 is a projecting piece, 12 is an upper bent part shows.

Claims (1)

[Scope of utility model registration request] A cross bar having a lower overhang piece for holding the ceiling board that protrudes laterally on the lower edge, and an upper rib that protrudes laterally on the upper edge, and a lower overhang piece that protrudes laterally on the lower edge. It consists of structural members such as a surrounding edge and a main bar, and a jointer that connects the cross bar and the structural member.The main bar has a bottom groove that opens upward at the lower side of the main bar, and has an L-shaped planar shape. One piece of the jointer has a lower engaging part that fits into the lower groove of the structural member, and an upper bent part that engages with the upper end surface of the structural member, and the other part of the jointer has a lower engaging part that fits into the lower groove of the structural member. A connection structure for a ceiling crossbar, comprising a fitting piece and a horizontal piece that receive the lower surfaces of both sides of the upper rib of the crossbar on which the end is placed.