JPH05230929A - Metal joint of ceiling bar - Google Patents

Abstract

PURPOSE:To simply and firmly connect a first ceiling bar with a second ceiling bar so as to cross at right angles. CONSTITUTION:A couple of support legs 12 holding auxiliary ceiling bars 9 is suspended at the end of metal joint body 11 having an opening 13 striding over the main ceiling bars 6 suspended from the ceiling slab through a hanging means. And a holding claw 14 connected to the auxiliary ceiling bar 9 is bent at the support leg 12. A fastening bolt 17 screwing in a fitting screw hole 15 of a bar ring 16 provided at the upper face of the metal joint body 11 is forced to contact the upper face of the auxilliary ceiling bar 9. In this way, the auxiliary ceiling bar 9 is held by the holding claw 14 bent at the support leg 12 and the fastening bolt 17. The main ceiling bar 6 and the auxiliary ceiling bar 9 can be connected to cross at right angles.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceiling bar connecting member, and more particularly, a connecting member for connecting ceiling bars suspended from a ceiling slab via suspending means in the same plane. It concerns metal fittings.

[0002]

2. Description of the Related Art As conventional connecting fittings of this type, those described in Japanese Utility Model Publication No. 51-45863, Japanese Utility Model Publication No. 52-33052 and Japanese Utility Model Publication No. 52-20422 are known. Among them, the one disclosed in Japanese Utility Model Publication No. 51-45863 has an inverted U-shaped fitting groove formed in a cross shape or a T shape, and after inserting a ceiling bar into each fitting groove,
In this structure, a fixing screw is screwed into a fitting insertion screw hole provided on a side portion of the fitting groove to connect the ceiling bar. In addition, the one disclosed in Japanese Utility Model Publication No. 52-33052 connects the ceiling bar using a connecting fitting having a mooring piece wall and a bending piece that engages so as to enclose the bending piece at the upper end of the side wall of the ceiling bar. It is a structure. Further, the one disclosed in Japanese Utility Model Publication No. 52-20422 has two bent pieces that fit into a fitting groove formed on the side surface of the ceiling bar to be connected, and one bent piece is used as one of the bent pieces. While fitting in the fitting groove of the ceiling bar, fit the other bent piece into the fitting groove of the other ceiling bar, and insert the projection provided at the side edge into the fitting groove. It is a structure that is crimped and connected and fixed.

[0003]

However, the one disclosed in Japanese Utility Model Publication No. 51-45863 has a structure in which the fixing screw is screwed into the fitting insertion screw hole on the side of the fitting groove.
It is necessary to hold the ceiling bar during fixing, which causes a problem that construction is troublesome and skill is required. Further, the one disclosed in Japanese Utility Model Publication No. 52-33052 has a structure in which the mooring piece wall and the bent piece are engaged with each other so as to enclose the upper end of the side wall of the ceiling bar. A problem occurs, and since it engages only with the side wall of the ceiling bar, there is a risk that the ceiling bar may move or float up due to vibration such as an earthquake. In addition, real public Sho 52-
Since the structure described in Japanese Patent No. 20422 has a structure in which a bent piece of a thin metal plate bent at a right angle is inserted into a fitting groove of a ceiling bar, rattling easily occurs when the connecting work is facilitated. Further, when the connection is the main purpose, the connection work becomes difficult, and furthermore, since the bent piece is fitted in the fitting groove of the ceiling bar, there is a problem that a high processing technique is required.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a ceiling bar connecting fitting which has a strong connecting structure for the ceiling bar and simplifies the construction. It is a thing.

[0005]

In order to achieve the above-mentioned object, the metal fittings of the ceiling bar according to the present invention are arranged side by side in a suspended state via suspending means suspended from a ceiling slab. A ceiling bar connecting fitting for connecting a first ceiling bar and a second ceiling bar to a side surface of the first ceiling bar in an orthogonal manner, and an opening portion straddling the first ceiling bar. And a pair of holding legs that hang down from the end of the connecting fixture body to hold the upper surface and both side portions of the second ceiling bar, and are bent from the holding legs. It comprises a holding claw that engages with the second ceiling bar, and a fixing member that is penetratingly attached to the upper surface of the connecting fitting body and abuts against the upper surface of the second ceiling bar.

In the present invention, as long as the connecting fitting body has an opening extending over the first ceiling bar, the opening and the holding leg portion may be formed separately, but preferably the connecting fitting body. It is better to form the opening by the holding legs that hang from both sides of the.

[0007]

With the above-described structure, the opening of the connecting metal fitting main body can be laid across the first ceiling bar, and the first ceiling bar and the connecting metal fitting can be connected orthogonally to each other. Then, by attaching the fixing member in a penetrating manner from the upper surface of the connecting metal fitting body that holds the second ceiling bar, the fixing member abuts the upper surface of the second ceiling bar, and the fixing member and the holding claw make it By sandwiching and fixing the second ceiling bar, it is possible to connect and fix the first ceiling bar and the second ceiling bar in an orthogonal manner.

[0008]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a perspective view of a main part of a ceiling having a connecting fitting of the present invention, FIG. 2 is an exploded perspective view of the connecting structure, FIG. 3 is a sectional view taken along line III-III of FIG. 1, and FIG. 3 is a sectional view taken along line IV-IV of FIG.

In the above ceiling structure, a suspending metal fitting 4 which is a suspending means attached to a suspending bolt 3 which is suspended by an anchor 2 on a ceiling slab 1, and a cross fitting 5 which is attached to the lower portion of the suspending metal fitting 4, A main ceiling bar 6 that is a plurality of first ceiling bars that are orthogonally connected by a cross fitting 5, and a main ceiling that is formed by the plurality of main ceiling bars 6 and that opposes in a rectangular space 7 for ceiling panel installation. Auxiliary ceiling bars 9 and 9 which are second ceiling bars which are parallel to each other and are installed between the bars 6 and 6 with the connecting fitting 10 of the present invention, and a ceiling panel which is composed of the main ceiling bar 6 and the auxiliary ceiling bar 9. Building space 7
and a ceiling panel 8 installed inside a. The ceiling panel 8 includes, for example, equipment devices 2 such as lighting and air conditioning.
It also includes the one to which 0 is attached. This ceiling panel 8
As shown in FIG. 3, is made of metal having locking hanging pieces 8a that engage with receiving grooves 6b having locking projections 6d provided on the main ceiling bar 6 or the auxiliary ceiling bar 9 at opposite edges. The porous surface plate 8b and the heat insulating / sound absorbing material 8c laid on the back surface, that is, the upper surface side of the metal surface plate 8b. In addition, between the upper surface of any main ceiling bar 6 and the ceiling slab 1, tension means 30 for preventing the horizontal movement of the main ceiling bar 6 is stretched in an inclined manner.

As shown in FIGS. 2 to 5, the connecting fitting 10 of the present invention has a rectangular steel connecting fitting body 11 made of steel.
An opening 13 straddling the main ceiling bar 6 is formed by two sets of holding legs 12 facing downwardly from both ends of the holding leg 12, and the lower end of the holding leg 12 has an auxiliary portion. The holding claw 14 that engages with the ceiling bar 9 is bent. Further, burring portions 16 having mounting screw holes 15 for tightening screws 17 which are fixing members are provided on both ends of the connecting fitting body 11, and the auxiliary ceiling bar 9 is temporarily held by the holding claws 54. The auxiliary ceiling bar 9 can be fixed by screwing the tightening screw 17 into the mounting screw hole 15 of the burring portion 16.

The main ceiling bar 6 and the auxiliary ceiling bar 9
As shown in FIGS. 2 to 4, the groove 6b has a narrow opening and is opened upward on the upper surface of the base 6a having a hollow rectangular cross section.
And a receiving groove 6e having a locking projection 6d is formed at the lower end of a vertical piece 6c depending on the lower portion of the base 6a. In addition, depending on the lower ends of both sides of the base portion 6a of the auxiliary ceiling bar 9, hanging pieces 6f that engage with the holding claws 14 of the connecting fitting 10 hang down.

To connect the auxiliary ceiling bar 9 to the main ceiling bar 6 using the connecting fitting 10 of the present invention formed as described above, first, the connecting fitting 10 is attached to the base 6a of the main ceiling bar 6.
The connecting fitting 10 is set orthogonally to the main ceiling bar 6 by straddling the opening 13 of the above. Next, the holding legs 12 and 1 facing each other
While holding the end portion of the auxiliary ceiling bar 9 between the two, the holding claw 14 is engaged so that the connecting fitting body 11 and the holding leg portions 12,
12 is used to hold the auxiliary ceiling bar 9. Then, by screwing the tightening screw 17 into the mounting screw hole 15 of the burring portion 16 and bringing the tightening screw 17 into contact with the upper surface of the auxiliary ceiling bar 9, that is, the bottom surface of the narrow opening-shaped concave groove 6b, the lower end of the auxiliary ceiling bar 9 The hanging piece 6f is pushed downward and is pressed and locked by the holding claw 14, and the holding claw 14 and the tightening screw 17 hold and fix the auxiliary ceiling bar 9. Therefore, the auxiliary ceiling bar 9 can be connected and fixed to the main ceiling bar 6 without changing the level of the auxiliary ceiling bar 9 between the temporarily fixed state and the fixed state.

Main ceiling bar 6 connected as described above
By assembling the ceiling panel 8 in the ceiling panel erection space 7a composed of the above and the auxiliary ceiling bar 9, the ceiling assembly work is completed. Therefore, the auxiliary ceiling bar 9 is linearly connected to the main ceiling bar 6 at a right angle, and the ceiling panel 8 is installed in the receiving groove 6b of the main ceiling bar 6 and the auxiliary ceiling bar 9, so that vibration due to an earthquake or the like may occur. It is safe because the auxiliary ceiling bar 9 does not rise.

In the above-described embodiment, the case where the narrow ceiling recessed groove 6b is provided on the upper surfaces of the main ceiling bar 6 and the auxiliary ceiling bar 9 has been described, but the main ceiling bar 6 without the narrow opening recessed groove 6b is described. Also, the auxiliary ceiling bar 9 can be similarly connected.

[0016]

As described above, according to the present invention, the connecting metal fitting main body having the opening extending over the first ceiling bar, and the second ceiling bar hanging from the end of the connecting metal fitting main body. A pair of holding legs for holding the upper surface and both side portions of the above, holding claws that are bent from the holding legs and engage with the second ceiling bar, and are attached to the upper surface of the connecting metal fitting body in a penetrating manner. Since it is composed of a fixing member that comes into contact with the upper surface of the second ceiling bar, it is easy to handle and the first ceiling bar and the second ceiling bar can be accurately connected in an orthogonal manner.

[Brief description of drawings]

FIG. 1 is a perspective view showing a main part of a ceiling having a connecting fitting of the present invention.

FIG. 2 is an exploded perspective view showing a connected state by the connecting fitting of the present invention.

FIG. 3 is a sectional view taken along line III-III in FIG.

4 is a sectional view taken along line IV-IV in FIG.

FIG. 5 is a perspective view showing a connecting fitting of the present invention.

[Explanation of symbols]

 6 Main Ceiling Bar (1st Ceiling Bar) 9 Auxiliary Ceiling Bar (2nd Ceiling Bar) 10 Coupling Metal Fittings 11 Coupling Metal Body 12 Holding Legs 13 Openings 14 Holding Claws 15 Mounting Screw Holes 16 Burring Parts 17 Tightening Screws (Fixing member)

Claims (1)

[Claims] 1. A first ceiling bar that is juxtaposed while being suspended from a ceiling slab via suspension means that is suspended from the ceiling slab, and a second ceiling bar with respect to a side surface of the first ceiling bar. A connecting member of a ceiling bar for connecting the two in an orthogonal manner, the connecting member main body having an opening that straddles the first ceiling bar, and the second ceiling bar of the connecting bracket main body hanging from an end of the connecting metal body. A pair of holding legs that hold the upper surface and both side portions, holding claws that are bent from the holding legs and engage with the second ceiling bar, and are attached to the upper surface of the connecting fitting body in a penetrating manner. And a fixing member that abuts on the upper surface of the second ceiling bar.