JPH0449356A - Support structure of ceiling base and supporter therefor - Google Patents

Abstract

PURPOSE:To obtain exact and strong positioning of ceiling by a method in which a positioning coupler is provided to the holding part of hanging ceiling base set in a latticed form, and a press is provided between the end of the ceiling base and the ceiling. CONSTITUTION:A holder 10 with a cross-shaped receiving metal 12 is hung down from a hanging bolt 3 from ceiling. A positioning coupler 16 is fitted into a positioning notch 4a, and a ceiling base 4 s fixed to the metal 12. A roughly chevron mach-shaped press metal 22 is provided, and its hook piece 25 and a turning preventive projection 26b are connected to a rectangular fitting hole 4d in the base 4 and a turning preventive hole 4g. A fixing screw 21 thrust through a long hole 26a is fixed to the screw receiver 25a of the hook 25. The end of a press bolt 24 fixed to ceiling is inserted into a groove 28 and the fixing nut 23 is clamped to tense it. Exact and strong positioning can thus be attained and earthquake proofness can also be raised.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a support structure for a ceiling base material and a support device thereof, and more particularly to a so-called system ceiling that facilitates the positioning of a ceiling base part in a suspended ceiling and provides earthquake resistance to the ceiling base part. The present invention relates to a support structure for a ceiling base material and a support device thereof.

[Conventional technology]

As a general suspended ceiling, a channel-shaped ceiling base material is supported by a holding means such as a hanging metal fitting on a hanging bolt suspended from a ceiling slab, and a ceiling finishing material is placed parallel to this ceiling base material using clips, etc., and , a structure in which ceiling panels are successively installed between ceiling finishing materials is known. In this case, in order to provide earthquake resistance to the ceiling base material, a method has been adopted in which a supporting device such as a brace fitting is stretched in an inclined manner between the hanging fitting and the ceiling slab (Japanese Patent Laid-Open No. 54-164
(See Japanese Utility Model Publication No. 312 and Japanese Utility Model Application Publication No. 13749/1983). Among these support devices, the former, that is, JP-A-54-16
The structure described in Publication No. 4312 is a structure in which a brace whose upper end is fixed to a ceiling slab (architectural frame) is arranged diagonally, and the lower end of the brace is connected to the ceiling base material by welding or the like. In the device described in Japanese Patent Publication No. 55-13749, a plurality of threaded parts for attaching braces facing diagonally downward are provided in a radial manner on the reeds embedded in the ceiling slab, and the hanging metal fittings are provided with a plurality of threaded parts facing diagonally downward in a radial manner. A plurality of bracelet attachment pieces are provided in a radial manner, each having oriented insertion holes for the bracelet attachment, and
It has a structure in which a brace bolt is connected to the threaded part for attaching the brace and the insertion hole for attaching the brace of the brace attaching piece.

[Problem to be solved by the invention]

However, the former support device has a structure in which the braces are connected using fixing means such as welding, so there are problems in that construction is troublesome and it is difficult to position the ceiling base material. In addition, the latter has a structure in which the brace bolts are stretched by threaded connections without using welding, etc., so it is easier to construct than the former, but it requires time and effort to install the brace bolts. However, the structure was complicated and accurate positioning was difficult. This invention has been made in view of the above circumstances, and aims to provide a support structure for a ceiling base material and a support device for the same, which provides earthquake resistance to the ceiling base grid part and allows support at accurately positioned locations. It is something.

[Means to solve the problem]

In order to achieve the above object, the support structure for the ceiling base material of the first invention provides a ceiling base material in which the intersections of the ceiling base materials are supported by holding means suspended from the ceiling slab and arranged in a grid. The holding means and the support side end of the ceiling base material are connected via a positioning protrusion and a notch that engage with each other, and at least two opposing ceiling bases of the ceiling base material are connected. Each supporting side in the material @
A tension-adjustable support device is suspended between the ceiling slab and the ceiling slab diagonally above the ceiling base material in the longitudinal direction. In the support structure for a ceiling base material of the present invention, the holding means may have any structure as long as it is connected to the supporting end of the ceiling base material via a positioning protrusion and a notch. However, it is preferable to have a height adjustment function. For example, a cross section having a U-shaped cross-sectional receiving part on which the ceiling base material is placed in the cross direction is connected to a metal fitting and a cross section that is suspended from the ceiling slab. a fixing metal fitting that is temporarily fixed to the hanging bolt and the cross piece presses the ceiling base material from above the metal fitting; a height adjustment part that holds the metal fitting and is threadedly coupled to the hanging bolt; The fixing nut may be screwed to the hanging bolt to fix the upper surface of the fixing fitting. In addition, in order to fix the support device to the support side end of the ceiling base material, engage the mounting piece of the support device with the mounting hole drilled in the upper piece of the ceiling base material in a hook shape, and hold the fixing member. It is preferable that the upper piece of the ceiling base material is clamped and fixed. In this case, if a rotation prevention hole is drilled in the upper piece of the ceiling base material and a rotation prevention protrusion that engages with the rotation prevention hole is provided on the mounting piece of the support device, it is possible to This is preferable because it prevents horizontal rotation of the base material and allows accurate positioning. Furthermore, the support device for ceiling base material of the second invention is based on the support device in the support structure for ceiling base material of the first invention, and is fixed to the upper surface of the support side end of the ceiling base material with a fixing member. It consists of a brace metal fitting, and a brace bolt that has one end fixed to the ceiling slab and the other end connected to the brace metal fitting with a fixing nut, and the brace bolt is attached to a hole drilled in the upper piece of the ceiling base material. A mounting piece that has a hook piece that engages in a hook shape in a hole and that holds the upper piece of the ceiling base material with the fixing member, an inclined piece that is bent in an inclined shape from one end of this mounting piece, and A brace bolt connecting piece is bent from the upper end and has a mounting groove opening on the side thereof.In the ceiling base material support device of this invention, the attachment piece of the brace bolt is attached to the ceiling base material. It may be of any shape as long as it engages in a hook-like manner to clamp and fix the ceiling base material, but it is preferable to have a through-hole for the fixing screw that constitutes the fixing member in the mounting piece. It is preferable that the hook piece is provided with a screw receiving part that is screwed into the fixing screw. Furthermore, the mounting piece and the ceiling base material may simply be fixed in a flat abutment state, but it is preferable that the mounting piece engages with a rotation prevention hole drilled in the ceiling base material. It is better to have a protrusion for preventing rotation.

[For production]

By configuring as described above, the holding means and the support side end of the ceiling base material are connected via the positioning protrusion and notch that engage with each other, and at least two of the ceiling base materials facing each other are Since a tension-adjustable support device is stretched between each support side end of the ceiling base material and the ceiling slab diagonally upward in the longitudinal direction of this ceiling base material, it is possible to support the ceiling base grid part in an accurate position. At the same time, earthquake resistance will be improved.

【Example】

Embodiments of the present invention will be described in detail below based on the drawings. FIG. 1 is a rear perspective view showing an embodiment of the support structure for a ceiling base material of the present invention, and FIG. 2 is a plan view thereof. The support structure for the ceiling base material of the present invention is such that the ceiling base material 4, 4...
. . , in a cross-shape, and connected to the supporting end of the ceiling base material 4 and the ceiling slab l diagonally upward in the longitudinal direction of the ceiling base material 4. The base grid part 5 is formed, and the ceiling finishing materials 6, 6 are placed below the ceiling base material 4 using the hanging means 30.
(Specifically, the T-bar 6, H-bar 7, frame material 8, etc., but here the T-bar 6 is representative) are installed in parallel, and between the ceiling finishing materials 6, 6. It has a structure in which a plurality of divided ceiling panels 9 are installed. As shown in FIGS. 3 to 6, the holding means 10 includes receiving parts 11, 11, which have a U-shaped cross section in four directions, on which ceiling base materials 4, 4,... are placed in the cross direction. The cross support having ... is temporarily fixed to the metal fitting 12 and the hanging port 3 hanging from the ceiling slab 1, and the cross support is a fixing metal fitting that presses the ceiling base material 4,4... from above the metal fitting 12. 13 and
The cross support includes a height adjusting part 14 which is screwed to the hanging port 3 while holding the metal fitting 12, and a fixing nut 15 which is screwed to the hanging port 3 and fixes the upper surface of the fixing fitting 13. In this case, the cross support is the horizontal receiving surface 11 of the receiving part 11 of the metal fitting 12.
Two positioning protrusions 16, 16 are protruded from above a, and positioning notches 4a, 4a drilled on the lower surface of the ceiling base material 4 fit into these protrusions 16, 16, and the ceiling base material Material 4
, 4 is regulated. Also,
A U-shaped cut-and-raised tongue piece 11b whose lower part is cut and raised is provided on the side surface of the receiving part 11, and this cut-and-raised tongue piece 11b
is engaged with a window hole 4b drilled in the side surface of the ceiling base material 4, thereby preventing the ceiling base material 4 from tilting when temporarily fastened. Further, the cross holder is formed by burring a guide hole 12a in the center of the metal fitting 12 into which the adjustment ring 14a of the height adjustment part 14 is inserted, and a reinforcing rib 12b is formed around the kite hole 12a. It is formed. The fixing fitting 13 is formed in a truncated conical shape, and has an outwardly directed seven flange 13c having reinforcing ribs 13b at the lower opening of the fixing fitting main body 13a, and a hanging port 3 at the center position of the horizontal head 13d. A mounting hole 13e for a stopper 18 to be screwed is provided. By forming the fixing fitting 13 in a truncated conical shape in this way, the rigidity is strengthened, and the fixing fitting main body 13a
By providing an outward flange 13c at the opening of the
The horizontal position of the fixture 3 relative to the ceiling base material 4 can be adjusted freely. On the other hand, the height adjusting part 14 includes an adjusting ring 14a having a rotating part 14b rotatably inserted into the guide hole 2a of the metal fitting 12 and a knob part 14c, and a knob part of the adjusting ring 14a. A pair of upright winds 17a are engaged with a pair of slits 14cl bored at opposite positions of 14c.
and a hat-shaped adjustment fitting 17 that is fitted into a rectangular through hole 14e provided in the adjustment ring 14a and screwed to the hanging port 3, and the horizontal head of the adjustment fitting 17 is The part 17b is fixed by welding or the like with a number h]7c to be threadedly connected to the hanging port 3, and
U-shaped cut and raised tongue pieces 17c1 and 17d that are cut and raised downward are provided on both sides. Therefore, the adjustment ring 14a adjusts the standing winds 17a, 17a.
When the cross support is fixed to the slabs H4d and 14d, the cross support is inserted into the guide hole 2a of the metal fitting 12 and screwed to the hanging port 3. 4 height adjustments can be made. Note that the cut-and-raised tongue piece 17cl of the adjusting fitting 17 engages with the upper surface of the adjusting ring 4a, so that the adjusting fitting 17 is prevented from being removed after assembly. As shown in FIG. 6, the ceiling base material 4 is formed of a C-shaped channel-shaped steel member, and the upper piece 4c at the support side end has a rectangular shape for attaching the support device 20. shaped window hole 4d, through hole 4e for fixing screw 21, and rotation prevention hole 4g
are bored in the lower surface 4f, and positioning notches 4a, 4a, which fit into the positioning protrusions 16, 16 of the metal fitting 12, are formed on the lower surface 4f.
Further, a window hole 4b having a cross shape and engaging with the cut-and-raised tongue piece 12c of the metal fitting 12 is bored in the side surface. On the other hand, the support device 20 includes a brace fitting 22 fixed to the upper surface of the support side end of the ceiling base material 4, and one end fixed to the ceiling slab l and the other end connected to the brace fitting 22 with a fixing nut 23. It is composed of a brace bolt 24. In this case, the brace fittings 22 are shown in FIGS. 7, 8 and 9.
As shown in Figures (a) to (d), the upper piece 4 of the ceiling base material 4
Hook piece 2 that engages with rectangular mounting hole 4d drilled in c
5 and a rotation prevention hole 4 drilled in the upper piece 4c of the ceiling base material.
A mounting piece 26 having a rotation prevention protrusion 26b that fits into g.
It has an inclined piece 27 which is bent in an inclined shape from one end of the mounting piece 26 opposite to the hook piece 25, and a mounting groove 28 which is bent from the upper end of this inclined piece 27 and opens on the side thereof. The hook piece 25 is provided with a barring receiving part 25a, and the hook piece 25 is engaged with the rectangular mounting hole 4d, and the rotation prevention protrusion 26b is connected to the hook piece 25. Rotation prevention hole 4g
The fixing member 21 passes through a long hole 26a along the longitudinal direction of the ceiling base material 4 bored in the mounting piece 26 in a state where the fixing member 21 is fitted into the mounting piece 26.
By tightening the fixing screw (fixing screw) to the screw receiving part 25a, the upper piece 4C of the ceiling base material 4 is held between the mounting piece 26 and the hook piece 25, and the brace fitting 22 is attached to the ceiling base material 4.
(See Fig. 4). After fixing the brace fitting 22 to the ceiling base material 4 in this way, insert one end or the other end of the brace port 24 fixed to the ceiling slab into the mounting groove 28 of the brace fitting 22, and then tighten the fixing nut 23. By tightening, the support device 20 is stretched in an inclined manner. In this case, both sides of the mounting piece 26 and the inclined piece 27 are reinforcing sides IEit26c, 27
a is bent, and reinforcing ribs 27b are provided from the inclined piece 27 to the brace bolt connecting piece 29. In addition, as a means for fixing one end of the breath port 24, that is, the ceiling slab side, an existing anchor metal fitting 22' driven into the ceiling slab l is used (see FIG. 3). In this way, by tensioning the support device 20 in an inclined manner between the support side end of each ceiling base material 4 and the ceiling slab 1, tension is applied in four directions from the support side end of each ceiling base material 4. This allows accurate positioning of the ceiling base grid portion 5 and improves earthquake resistance. Note that the support device 20 does not necessarily need to be stretched in four directions in relation to the adjacent support portions, and the support device 20 may be stretched in two opposing directions. Next, a procedure for assembling the support structure for the ceiling base material of the present invention will be explained. First, the fixing fitting 13 of the holding means 1O is temporarily fixed in advance to the hanging port 3 hanging from the reference position of the ceiling slab 1 using the stopper 18, and the adjustment fitting 17 When screwed into the hanging port 3, the amount of the cross is the positioning protrusion 1 of each receiving part 11 of the metal fitting 12.
The positioning notches 4a, 4a of the ceiling base material 4 are fitted into the ceiling base materials 4.6, 16, and the ceiling base materials 4.4 are supported in a cross shape to form the ceiling base grid portion 5. Then, the ceiling base material 4. 4.
...adjust to a specified height. At this time, since the cut-and-raised tongue piece 11b of the metal fitting 12 engages with the ceiling base material 4, there is no risk of it falling off even when the ceiling base material 4 is cantilevered. Next, the hook piece 25 of the brace fitting 22 is engaged with the mounting hole 4d1m drilled in the support side end j of the upper piece 4C of the ceiling base material 4, and the rotation prevention protrusion 2 is inserted into the rotation prevention hole 4g.
6b, the fixing screw 21 is tightened to clamp and fix the brace fitting 22 to the upper piece 4c of the ceiling base material 4. Then, the other end of the breath port 24, whose one end is fixed to the anchor metal fitting 22' embedded in the ceiling slab 1, is inserted into the mounting groove 28 of the mounting piece 26 of the breath metal fitting 22, and the fixing nut 23 is tightened. By connecting the support device 20 to the supporting end of the ceiling base material 4 and the ceiling slab 1 diagonally upward in the longitudinal direction of the ceiling base material 4, the coplanar ceiling base grid portion 5 is positioned. Formed into an earthquake-resistant structure. Then, the clip 33 is straddled from above the ceiling base material 4 through the positioning member 36 through a positioning notch (not shown) provided at a predetermined position of the ceiling base material 4, and the leg claws 34 of the clip 33 are Install T-bar 6 etc. in parallel to the ceiling panel 9.
Then, the installation work is completed by erecting the equipment plate 50. In addition, when forming a ceiling inspection hole in a part of the ceiling surface,
Ceiling inspection opening panels 41, 42, and 43 may be removably disposed within the ceiling inspection opening 40, which is composed of opposing T-bars 6.6 and frame members 8, 8. In addition, the equipment plate 50 includes an air conditioning outlet 51, a lighting fixture 52, a sprinkler 53, a smoke detector 5, as necessary.
4 or a speaker 55 or the like is attached. Further, the ceiling base material 4 on the ceiling end side is suspended by a hanger 3a attached to the hanging bolt 3, and the ceiling panel 9 is suspended from the side wall 1.
It is supported by the end frame member 1b fixed to a (the third
(see figure).

【Effect of the invention】

As explained above, according to the ceiling base material support structure and its support device of the present invention, which are configured as described above, the following effects can be obtained. (2) According to the support structure for a ceiling base material according to claim 1, the holding means and the support side end of the ceiling base material are connected via the positioning protrusion and notch that engage with each other, and the support structure of the ceiling base material is A tension-adjustable support device is suspended between the support side ends of at least two opposing ceiling base materials and the ceiling slab diagonally upward in the longitudinal direction of the ceiling base materials, so that accurate positioning can be achieved. A ceiling base grid portion having earthquake resistance can be formed. 2) r # According to the support structure for a ceiling base material according to claim 2, a mounting hole is formed in the upper piece of the ceiling base material, and the mounting hole and the mounting piece of the support device are engaged in a seven-piece shape, Since the upper piece of the ceiling base material is clamped and fixed by the fixing member, horizontal support of the ceiling base material can be further strengthened. 3) According to the support structure for a ceiling base material according to claim 3, a rotation prevention hole is formed in the upper piece of the ceiling base material, and a rotation prevention hole is provided in the mounting piece of the support device to engage with the rotation prevention hole. Since the blocking protrusion is provided in a protruding manner, rotation of the ceiling base material can be prevented during construction, and the ceiling base material can be easily supported and positioned. 4) According to the support device for a ceiling base material according to claim 4, a brace member is fixed to the upper surface of the support side end of the ceiling base material with a fixing member, and one end is fixed to the ceiling slab and the other end is fixed. It consists of a brace bolt that is connected to the brace metal fitting with a nut, and has a hook piece that engages in a hook shape to a mounting hole drilled in the upper piece of the ceiling base material, and the brace bolt is connected to the ceiling base metal with a fixing member. A mounting piece that clamps the upper piece, an inclined piece that is bent from one end of this fitting piece in an inclined shape, and a brace bolt connection piece that is bent from the upper end of this inclined piece and has a mounting groove that opens on the side thereof. Since the structure is simple, it can be easily stretched between the ceiling base material and the ceiling slab, and the positioning of the ceiling base grid part and earthquake resistance can be improved. 5) According to the support device for a ceiling base material according to claim 5, the mounting piece I is provided with a through hole for a fixing screw constituting the fixing member, and the hook piece has a receiving part that is screwed together with the fixing screw. Since this is provided, the connection between the ceiling base material and the brace fitting can be reliably performed. 6) According to the support device for a ceiling base material according to claim 6, since the mounting piece is provided with a protrusion for preventing rotation that engages with a rotation prevention hole drilled in the ceiling base material, the ceiling base material is supported. The material and the brace fitting can be easily connected, and can be connected in an accurate positioning state.

[Brief explanation of drawings]

FIG. 1 is a perspective view of the back side of the support structure for the ceiling base material of the present invention, FIG. 2 is a plan view of the back side of the support structure for the ceiling base material of FIG. 1, and FIG. 3 is a support structure for the ceiling base material of the present invention. 4 is an enlarged view of the main part of FIG. 3, FIG. 5 is a plan view of FIG. 4, FIG. 6 is an exploded perspective view showing the supporting end of the ceiling base material, Fig. 7 is a perspective view of the main parts showing the installation state of the support device for the ceiling base material, Fig. 8 is a perspective view showing a cross section of a part of the brace fitting according to the present invention, and Fig. 9 (a) is a sectional view of the brace fitting. , FIG. 9(b) is a plan view of FIG. 9(a), FIG. 9(C) is a side view of FIG. 9(a), and FIG. 9(d) is a plan view of FIG. 9(a). It is a directional view. Description of symbols 3...Hanging bolt, 4...Ceiling base material, 4a...Positioning notch, 4g...Rotation prevention hole, 5...Ceiling base grid part, 10... ...Holding means, 16...Positioning protrusion, 20...Supporting device, 21...Fixing screw (fixing member) 22...Brace fitting, 23...Fixing nut, 24...Brace bolt, 25...Hook piece, 25a...Screw receiver, 26...One piece mounting, 26b...Protrusion for preventing rotation, 27...Inclination Piece, 28...Mounting groove, 29...Brace bolt connection piece. Figure Figure 6b 6c Figure (c) Figure (b) Figure (d)

Claims (6)

[Claims] (1) In a ceiling base material support structure in which the intersections of the ceiling base materials are supported by holding means hanging from the ceiling slab and arranged in a grid, the support side end of the said holding means and the ceiling base material. are connected via positioning protrusions and notches that engage with each other, and the support side ends of at least two opposing ceiling base materials of the ceiling base material and the obliquely upper end of the ceiling base material in the longitudinal direction A support structure for a ceiling base material, characterized in that a tension-adjustable support device is stretched over the ceiling slab. (2) A mounting hole is drilled in the upper piece of the ceiling base material, the mounting hole and the mounting piece of the support device are engaged in a hook shape, and the upper piece of the ceiling base material is clamped and fixed with a fixing member. The support structure for a ceiling base material according to claim 1, characterized in that: (3) A rotation prevention hole is formed in the upper piece of the ceiling base material, and a rotation prevention projection that engages with the rotation prevention hole is provided on the mounting piece of the support device. The support structure for a ceiling base material according to claim 1 or 2. (4) In the ceiling base material support device according to claim 1,
The brace consists of a brace that is fixed to the upper surface of the support side end of the ceiling base material with a fixing member, and a brace bolt that has one end fixed to the ceiling slab and the other end connected to the brace with a fixing nut. A mounting piece having a hook piece that engages the metal fitting in a hook shape in a mounting hole drilled in the upper piece of the ceiling base material and holding the upper piece of the ceiling base material with the fixing member; an inclined piece bent in an inclined shape from one end;
A support device for a ceiling base material, comprising a brace bolt connecting piece that is bent from the upper end of the inclined piece and has a mounting groove opening on the side thereof. (5) A ceiling according to claim 4, characterized in that the mounting piece is provided with a through hole for a fixing screw constituting the fixing member, and the hook piece is provided with a receiving portion that is screwed together with the fixing screw. Support device for substrate. (6) A support device for a ceiling base material according to claim 4 or 5, characterized in that the mounting piece is provided with a protrusion for preventing rotation which engages with a rotation prevention hole drilled in the ceiling base material. .