JP3079453B2 - Connection fitting for ceiling bar - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connection fitting for a ceiling bar, and more particularly to a connection for a ceiling bar which is suspended by suspension means hanging down from a ceiling slab to connect an intersection of the ceiling bars. It relates to improvement of metal fittings.

[0002]

2. Description of the Related Art Conventionally, as this kind of connecting metal fittings, those described in Japanese Utility Model Publication No. 51-45863 and Japanese Utility Model Publication No. 2-144569 are known. Of these, Mikono Sho 5
No. 1-45863 discloses an inverted U-shaped fitting groove provided in a cross shape or a T shape, a ceiling bar inserted into each fitting groove, and then provided on a side portion of the fitting groove. This is a structure in which a fixing screw is screwed into the fitted insertion screw hole to connect the ceiling bar. Further, Japanese Utility Model Publication No. 2-14569 discloses a cross section in which a holding portion having an inverted U-shaped cross section suspended by a suspending means is provided in a cross shape, and two locking pieces provided on the holding portion are attached to a ceiling. In order to cover the intersection from below the intersection, the engagement protrusions provided on the holding portion are respectively engaged with the engagement holes of the ceiling bar to be connected together with the grooves of the bar and the gaps of the wing pieces. This is a structure in which a plate having a locking piece is attached to the substrate.

[0003]

However, the former, that is, the one described in Japanese Utility Model Publication No. 51-45863,
No consideration is given to the attachment with the suspension means, and furthermore, it is difficult to attach the suspension means with this structure. Therefore, there is a problem that a separate attaching member is required to suspend the ceiling bar via the suspending means. In addition, since 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, so that it takes time and effort to perform the construction, and problems such as requiring skill are required. is there. On the other hand, the latter, that is, the one described in Japanese Utility Model Publication No. 2-144569, is suspended by the suspension means, so that a separate suspension member is not required. The structure is complicated and the number of constituent members is large, so that there is a problem that processing is troublesome and construction is troublesome.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has a simple structure, and is capable of positioning the intersection of the ceiling bars, accurate dimensional accuracy such as an angle, and simplification of construction. The purpose is to provide.

[0005]

According to a first aspect of the present invention, there is provided a connecting member for a ceiling bar, which is suspended by a suspending means hanging down from a ceiling slab to connect an intersection of the ceiling bars. Assuming a ceiling bar connection fitting to be mounted, an angle-regulating holding portion extending in a cross shape in a horizontal direction from a mounting base hung by the hanging means, and the ceiling bar cooperating with this holding portion. A pair of holding pieces that sandwich the ceiling bar from both sides from the upper surface of the ceiling bar to the holding portion, and that face each other from the lower ends of the holding pieces.
Holding claw that is bent in the direction
Formed, the fixture is made by forming at abuts fastening screws on the upper surface of the ceiling bar through a threaded hole provided in the horizontal plane of the holding portion.

[0006]

According to the connecting bracket of the present invention configured as described above, the angle regulating holding portion extending horizontally in a cross shape from the mounting base suspended from the suspending means is provided with the ceiling bar. Up
A pair of holding pieces that sandwich the ceiling bar from both sides
From the lower ends of these holding pieces in opposite directions.
By forming a holding claw that locks and holds the ceiling bar, the ceiling bar is angle-regulated in an orthogonal shape and held in a temporarily fixed state, so that the distance between the ceiling bars can be adjusted. Become. Then, the ceiling bar can be connected and fixed orthogonally by screwing a fastening screw into a screw hole provided on the horizontal surface of the holding portion and abutting on the upper surface of the ceiling bar. This allows
The dimensional accuracy such as the positioning of the intersection of the ceiling bar and the angle becomes accurate, and the construction can be simplified.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS 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 structure provided with the connecting fitting of the present invention, FIG. 2 is an exploded perspective view showing a connecting state of the connecting fitting and the ceiling bar, and FIG. 3 is a connecting state of the connecting fitting and the ceiling bar. 4 to 6 are respectively IV-IV in FIG.
A cross-sectional view along the line VV and the line VI-VI is shown.

The above-mentioned ceiling structure has a hanging bracket 4 which is a height-adjustable hanging means attached to a hanging bolt 3 suspended from a ceiling slab 1 with an anchor 2, and is attached to a lower portion of the hanging bracket 4. Cross-shaped connecting bracket 5 of the present invention
And a plurality of ceiling bars 6 connected orthogonally by the connecting metal fittings 5 and a plurality of ceiling panels 8 installed in a rectangular space 7 for installing ceiling panels formed by the plurality of ceiling bars 6. It is configured. In addition, between the upper surface of the ceiling bar 6 at an arbitrary position and the ceiling slab 1, a stretching means 9 for preventing the horizontal movement of the ceiling bar 6 is provided in an inclined manner.

In this case, as shown in FIG. 1, the rectangular space 7 is provided at the intersection of the four ceiling bars 6 forming the rectangular space 7 at the intermediate side of one of the adjacent ceiling bars 6 and the other. Ceiling bars 6 are connected orthogonally, and the end of the other adjacent ceiling bar 6 is connected orthogonally to the middle side thereof to form a square in the same plane. A plurality of squares 6 are continuously assembled on the same plane based on the square space 7 which is one side of the adjacent square space 7 to form a framework of the ceiling. The ceiling panel 8 is provided between two parallel connecting bars 30, 30, which are laid between opposed ceiling bars 6, 6 in the rectangular space 7. It is formed in a trapezoidal shape provided between each side of the mounting rectangular frame 32 and the ceiling bar 6. The ceiling panel 8 has a metal perforated surface plate 8b having a hook portion 8a on its periphery that engages with the locking ridge 6e of the ceiling bar 6, and a metal surface plate 8b.
(See FIGS. 4 to 6).

As shown in FIG. 2, the hanging metal fitting 4 is connected to an upper horizontal piece 4b having a horizontally long hole 4a into which a screw portion 3a at the lower end of the hanging bolt 3 is inserted so as to be movable in the horizontal direction. A lower horizontal piece 4c having a mounting hole 4g mounted and fixed on the upper surface of the metal fitting 5, an upper horizontal piece 4b and a lower horizontal piece 4c;
And a reinforcing rib 4f is bent on the side of a U-shaped main body 4e composed of a vertical piece 4d connecting the upper and lower parts. The hanging bracket 4 configured as described above has an upper horizontal piece 4 with the threaded portion 3a of the hanging bolt 3 inserted into the horizontal elongated hole 4a.
upper nut 3b screwed to the upper side and the lower side of b
The lower nut 3c is attached to the suspension bolt 3 so as to be adjustable in height.

The connection fitting 5 of the present invention is shown in FIGS.
As shown in the figure, a through hole 1 through which a fixing bolt 10 is inserted at the center.
A boss portion 12 which is a mounting base portion provided with 1 and a holding portion 13 for regulating an angle having a reverse U-shaped cross section and extending in the radiation direction divided into four equal parts from the boss portion 12 are formed. I have. In this case, the holding portion 13 is provided with a pair of holding pieces 15, 15 that hang downward from the top side of the ceiling bar 6 from both sides on the distal end side and hold the ceiling bar 6 downward. At the lower end of the holding piece 15, holding claws 14 for locking and holding the ceiling bar 6 are bent in opposite directions. In this case, the upper end side of the holding piece 15 is
By hanging the side piece 16 of 3 downwardly with the cut 17, elasticity is ensured. The upper surface 6 of the ceiling bar 6 is located on the horizontal surface side where the holding pieces 15 and 15 are located.
A burring portion 19 having a screw hole for mounting a tightening screw 18 which is a fixing tool protruding toward a is provided. Further, at the base end side of the horizontal plane, a locking claw 20 that engages with the opening edge of the narrow opening groove 6b that is provided at the upper end of the ceiling bar 6 and that opens upward is bent downward. This locking claw 2
Numeral 0 is to be fitted in the narrow opening groove 6b of the ceiling bar 6 to maintain the straightness of the ceiling bar 6,
In conjunction with 5, it is possible to regulate the angle between the orthogonal ceiling bars 6, 6.

The ceiling bar 6 is, as shown in FIG.
A ceiling panel having a narrow opening groove 6b having an upper opening on the upper surface 6a of a base 6c having a hollow rectangular cross section, and having a locking ridge 6e at the tip at the lower end of a vertical piece 6d hanging down from the center of the lower surface of the base 6c. An installation flange 6f is provided. In addition, on the side surface of the base 6c in the middle part of the ceiling bar 6,
An alignment mark 6g serving as a positioning guide for connection to the connection fitting 5 is provided.

Next, an assembling procedure for connecting the ceiling bar 6 using the connecting fitting 5 of the present invention will be described.
First, hanging anchor 3 on ceiling slab 1
The hanging metal fitting 4 is attached to the hanging bolt 3 at a predetermined height position with the upper and lower nuts 3b and 3c. Next, the connecting fitting 5 is fixed to the lower surface of the hanging fitting 4 with the fixing bolt 10 and the fixing nut 10a (see FIG. 4). At this time, the direction of the holding portion 13 of the connection fitting 5 can be adjusted before fastening the fixing bolt 10 and the fixing nut 10a.

Next, the opposite holding portions 13,
The first ceiling bar 6 is inserted and clamped between the 13 holding pieces 15, 15. At this time, the alignment mark 6g provided on the ceiling bar 6 is aligned with the end edge of the connection fitting 5 to perform positioning, and the locking claw 20 is engaged in the narrow opening groove 6b at the center of the ceiling bar 6. Then, an end is inserted between the holding pieces 15, 15 of the holding portion 13 in a direction perpendicular to the ceiling bar 6 so as to clamp the second ceiling bar 6, and the locking claw 20 is inserted into the narrow opening groove 6b. Engaging the first and second ceiling bars 6,6
Is held in a T-shape by the holding claws 14 in a temporarily fixed state. In this state, the first and second ceiling bars 6, 6 are angle-regulated orthogonally.

Similarly, the third ceiling bar is held between the holding pieces 15, 15 of the holding portion 13 in the direction perpendicular to the second ceiling bar 6 of the connection fitting 5 for holding the intermediate portion of the second ceiling bar 6. 6
Of the third ceiling bar 6, the locking claw 20 is engaged in the narrow opening groove 6 b of the third ceiling bar 6, and the third ceiling 5 of the connection fitting 5 that holds the intermediate portion of the third ceiling bar 6. The end of the fourth ceiling bar 6 is inserted between the holding pieces 15 and 15 of the holding unit 13 in a direction perpendicular to the bar 6, and the fourth fitting 5 of the connecting metal fitting 5 that holds the middle part of the fourth ceiling bar 6. The rectangular space 7 is formed by inserting the end of the ceiling bar 6 between the holding pieces 15, 15 of the holding section 13 in a direction perpendicular to the ceiling bar 6. At this time, the locking claw 2
After the ceiling bars 6 are moved along the engagement between the ceiling bar 6 and the narrow opening grooves 6b to adjust the distance between the ceiling bars 6, the tightening screws 1
8 is pressed against the upper surface 6 a of the ceiling bar 6, that is, the bottom surface of the narrow opening groove 6 b through the mounting screw hole of the burring portion 19, so that the lower end of the base 6 c of the ceiling bar 6 is pushed down, and Pressed and locked. Therefore,
Tightening and fixing can be performed without causing a change in the level of the ceiling bar 6 between the temporarily fixed state and the fixed state.

Similarly, on the basis of the rectangular space 7 formed as described above, the ceiling bars 6 are sequentially connected by the connecting fittings 5 to form a plurality of rectangular spaces 7 on the same plane. Two connecting bars 30, 30 parallel to each other between the opposing ceiling bars 6, 6 and straddle a square frame 32 of equipment 31 such as lighting equipment, air conditioning equipment, etc. between the connecting bars 30, 30. The ceiling panel 8 is erected between the rectangular frame 32 and the ceiling bar 6 to complete the assembling operation.

Therefore, since the sides of the two rectangular spaces 7 can be formed by one type of ceiling bar 6, the number of constituent members can be reduced and the surface rigidity can be improved. In addition, since it is not necessary to connect the entire ends of the ceiling bar 6, the number of construction steps can be reduced.

In the above embodiment, the case where the narrow opening groove 6b for positioning is provided on the upper surface of the ceiling bar 6 has been described. However, the groove does not necessarily have to be a narrow opening.
Any shape may be used as long as it is provided along the ceiling bar 6. Further, in the above embodiment, the case where two sides of the adjacent rectangular space 7 are formed by one type of ceiling bar 6 has been described. Of course, when the ends of the four ceiling bars 6 are connected in a collective manner. Can also be applied.

[0020]

As described above, according to the ceiling structure of the present invention, the ceiling for the angle regulation extending horizontally in a cross shape from the mounting base suspended by the suspension means is provided. A pair of bars that sandwich the ceiling bar from both sides from the top of the bar
Fold the holding pieces in opposite directions from the lower ends of these holding pieces.
A fixing tool for fixing the ceiling bar in cooperation with the holding portion is formed by bending a holding claw for locking and holding the ceiling bar, and a fixing tool for fixing the ceiling bar through a screw hole provided in a horizontal plane of the holding portion is provided on the upper surface of the ceiling bar. Since it is formed by tightening screws that abut against the ceiling bar, the number of components can be reduced, and the intersection and the angle of the ceiling bar can be positioned and angled while the ceiling bar is temporarily fixed. Can be achieved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a main part of a ceiling structure provided with a connection fitting of the present invention.

FIG. 2 is an exploded perspective view showing a connection state between a connection fitting and a ceiling bar according to the present invention.

FIG. 3 is a plan view showing a connection state between a connection fitting and a ceiling bar according to the present invention.

FIG. 4 is a sectional view taken along line IV-IV in FIG. 3;

FIG. 5 is a sectional view taken along the line VV in FIG. 3;

FIG. 6 is a sectional view taken along the line VI-VI in FIG. 3;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 4 Hanging fitting (hanging means) 5 Connecting fitting 6 Ceiling bar 10 Fixing bolt 10a Fixing nut 12 Boss (mounting base) 13 Holding section 14 Holding claw 15 Holding piece 18 Tightening screw (Fixing tool) 19 Burring section

──────────────────────────────────────────────────続 き Continuation of front page (72) Inventor Arihiro Nagatani 1-1-1, Uchisaiwai-cho, Chiyoda-ku, Tokyo Inside Naka Engineering Laboratory Co., Ltd. (56) References JP-A-4-49356 (JP, A) Hei 2-144913 (JP, U) Japanese Utility Model Showa 54-113221 (JP, U) Japanese Utility Model Showa 55-86809 (JP, U) Japanese Utility Model Showa 61-129014 (JP, U) (58) Field surveyed (Int) .Cl. ⁷ , DB name) E04B 5/55

Claims (1)

(57) [Claims] 1. A ceiling bar connecting bracket hung by a hanging means hanging from a ceiling slab and connecting an intersection of ceiling bars, wherein a crossbar is horizontally mounted from a mounting base hung by the hanging means. A holding portion for regulating the angle extending in a shape, and a fixture for fixing the ceiling bar in cooperation with the holding portion. The holding portion straddles both sides from the upper surface of the ceiling bar. And a pair of holding pieces to hold the ceiling bar
Bent in the opposite direction from the end to lock the ceiling bar
A holding claw for holding is formed, and the fixing tool is formed by a tightening screw that penetrates a screw hole provided in a horizontal plane of the holding portion and contacts the upper surface of the ceiling bar. Connection fitting for ceiling bar.