JP2003138689A - Suspension structure of integrated ceiling and integrated ceiling - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the suspension structure of an integrated ceiling in which the efficiency of the execution of works is improved largely, enhancing the strength and aseismicity of a ceiling backing and costs for manufacture and the execution of works can be held down while a construction cost can be held down even in the renewal of an existing building. SOLUTION: A T bar 2 assembled in a grid shape and used as the ceiling backing is suspended by a wire 24 for fixing a post at a crossing, the post 3 composed of a pipe material is arranged between the T bar and the slab surface 1b of a skeleton 1 and used as a compression column member, and engaging metallic materials 5 riveted on the slab surface 1b and brace members 4 manufactured of shape steel on the side faces of the post 3 are fixed in the oblique direction. Fixable ceiling cornices are engaged at the end sections of the T bar 2 to prevent the falling of a ceiling board, and the rigidity of the ceiling backing is increased.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a suspension structure for a system ceiling and a system ceiling.

[0002]

2. Description of the Related Art Conventionally, a T-bar is assembled in a grid shape to form a grid-like base, which is suspended from a skeleton such as a slab. 2. Description of the Related Art There is known a system ceiling in which an equipment plate or the like on which equipment equipment for installation is placed and locked.

FIG. 10 is a perspective partial sectional view showing an outline of a conventional system ceiling suspension structure. FIG. 11 is an explanatory diagram showing a schematic configuration in the cross-sectional direction. The ceiling base suspended from the frame 1 is composed of T-bars 2 crossed at intervals of, for example, 2 feet (609.6 mm) and assembled in a grid shape. The web 2a of the T-bar 2 is directed upward, and the flange 2b is extended horizontally to serve as a receiving surface for locking a ceiling plate or the like.

There are a suspension bolt method and a wire suspension method for suspending the ceiling substrate, but the latter method, which can be constructed with a cheaper material, is common in Europe and America.
Shown in Fig. 2 is a wire suspension system.

In this case, the T-bar 2 is located near the intersection where the T-bars 2 intersect each other, and in the vertical direction, the post-fixing wire 2
4. It is suspended from the body 1 by four wire braces 22 in an oblique direction. Both wires are
On the skeleton side, on the locking hole of the locking metal member 23 that is stud-fastened to the slab surface 1b of the skeleton 1 by the stud 6, on the T bar side, the wire locking hole 2c provided near the intersection, respectively.
The wire is threaded and then twisted and locked. Therefore, in a normal state, the ceiling base is locked vertically downward and horizontally to support the weight of the ceiling plate and the equipment plate from above. However, when the ceiling base is shaken upward due to an external force such as an earthquake, the ceiling is displaced or deformed upward.

Therefore, the compression post 21 is provided so as to surround the post-fixing wire 24 and regulate the deformation in the vertically upward direction. Although the compression post 21 extends in the extension direction by using a conduit tube, an existing product having a stopper mechanism in which the compression is restricted in the compression direction is used.

On the other hand, between the wall surface 1a of the body 1 and the wall 1a, an edge 2 having an L-shaped cross section for accommodating the end portion of the T-bar 2 is provided.
0 is fixed to the wall surface 1a by a screw 10 from the side. The T-bars 2 assembled in a grid shape are locked by the peripheral edge 20 so as to be dropped into the receiving surface extending horizontally from the wall surface 1a from above, but they are not fixed, so that the wire braces 22 alone are used for leveling. Directional position is restricted. Further, in the vertical direction, the weight of the ceiling plate, the equipment plate, and the like pushes it downward and makes contact with the receiving surface.

The wall surface 1a is not limited to the surface of the wall body extended from the floor surface, but in the case of a beam-exposed ceiling, for example, it is the side surface of the beam protruding downward from the slab surface 1b.

[0009]

However, in the suspension structure of the system ceiling by the wire suspension system as described above, first, when the full-scale vibration test considering the seismic resistance is repeatedly performed, the wire brace 22 gradually increases. There was a problem that the brace was hard to work due to the elongation. For this reason,
If the number of earthquakes increased, the wire would stretch and the seismic resistance might decrease. Further, since it is necessary to set the tensile strength to an appropriate value when constructing the wire brace 22 and to suppress the variation in elongation due to the load of the ceiling plate, etc.,
There has been a problem that the work of tensioning and checking the wire becomes enormous and the construction cost rises.

Further, in the design in Japan, which requires earthquake resistance as compared with Europe and the United States, it is necessary to arrange a large number of relatively strong compression posts 21, and since they have an expensive stopper mechanism, the procurement cost is increased. There was a problem of causing a rise.

Further, in the rim used for the suspension structure of the system ceiling described above, since the T-bar 2 is only placed on the rim 20, there is a problem that the strength is low and the earthquake resistance is poor.

Further, for example, in the renewal work of a building, there is a great demand for a system ceiling having excellent workability, but in order to fix the peripheral edge 20 to the wall surface 1a from the side with screws, first, a prepared hole is formed in the wall surface 1a. It is necessary to drive the hole-in anchor to provide a screw-in part for the screw, but rather, the construction cost increases and overall,
There was the problem of being expensive.

The present invention has been made in view of the above problems, and while improving the strength and earthquake resistance of the ceiling substrate, it greatly improves the efficiency of construction and suppresses the cost for manufacturing and construction. It is an object of the present invention to provide a suspension structure for a system ceiling that can reduce the construction cost even when the existing building is renewed.

[0014]

In order to solve the above-mentioned problems, in the invention described in claim 1, the T-bars are assembled in a grid shape, and at a position where the T-bars are crossed, a skeleton is formed by a wire. A grid-like base for arranging the system ceiling, and a compression pillar member for restricting upward deformation of the T-bar is arranged so as to surround the wire. In a hanging structure of a system ceiling in which the horizontal position of the T-bar is restricted by a brace member locked to the body, the brace member is made of shaped steel, and one end of the brace member is used as a body. It is fixed to the locked metal fitting and the other end is fixed to the T-bar. Therefore, it is not necessary to adjust the tension of the brace member, and both ends are fixed without loosening, so that stable seismic performance can be obtained even if vibration is repeatedly applied.

According to the second aspect of the present invention, the T-bars are assembled in a grid shape, and the grids for suspending the T-bars from the skeleton by wires at the positions where the T-bars intersect each other are provided for arranging the system ceiling. A columnar base, a compression column member for restricting upward deformation of the T-bar is disposed so as to surround the wire, and the horizontal position of the T-bar is locked to the frame. In a system ceiling suspension structure regulated by a brace member, the compression column member is made of a pipe material, and an end portion thereof is provided with a position in the upper and horizontal directions across the upper end portion of the intersecting T-bar. A position regulating portion that regulates and locks is provided. Therefore, since the upward deformation of the T-bar is restricted by the rigidity of the pipe material, the compression column member can be made of an inexpensive material without providing an expensive stopper mechanism.

According to a third aspect of the present invention, in the suspension structure for a system ceiling according to the second aspect, the compression column member has a pipe member with both ends cut off, and a protrusion that is locked to an end portion of the pipe member. And the crossed T
And a connecting member provided with a sandwiching portion that restricts and locks the position in the upper and horizontal directions across the upper end portion of the bar. Therefore, the tubular member that restricts the upward deformation of the T-bar, which requires greater rigidity, is manufactured in a simple shape, and the sandwiching portion, which requires a more complicated shape, is a separate member, which facilitates manufacturing as a whole. .

According to a fourth aspect of the present invention, in the system ceiling suspension structure according to the second or third aspect, the compression pillar member is made of a square steel base material, and the brace member is made of shaped steel. One end of the brace member is welded to a locking metal member that is locked to the body, and the other end is fixed to the side surface of the square steel base material by locking. Therefore, the brace member can be attached in a state in which the height of the T bar is regulated and determined by the compression column member, and it is not necessary to adjust the height when attaching the brace member, and the attaching portion is flat. Since it is locked to the square steel base material, the brace member can be locked easily.

In a fifth aspect of the invention, the T-bars are assembled in a grid shape, and the grids for suspending the T-bars from the skeleton by a wire at a position where the T-bars cross each other are provided for arranging the system ceiling. A suspended structure for a system ceiling is provided, in which a peripheral base is formed, and a peripheral edge of the system ceiling is provided with a peripheral edge that accommodates and locks the end portion of the T-bar, and the peripheral edge forms a lower surface of the end portion of the T-bar. A horizontal receiving lower receiving surface portion for receiving, a side surface portion extending vertically from an end portion of the lower receiving surface portion and facing a wall surface of the skeleton, and a horizontal direction from an upper end portion of the side surface portion. An upper receiving surface portion that is extended to face the lower receiving surface portion and is positioned to receive the upper surface of the end portion of the T bar, and a horizontal position of the end portion of the T bar in a direction along the wall surface are regulated. Along the wall surface at the end of the T-bar to A vertical direction from the end surface of the upper receiving surface portion in order to regulate the horizontal position, and the upper end portion of the T-bar is sandwiched and positioned by the end portion of the shield portion in the width direction. And a positioning portion formed with a slit, which is formed into a rectangular shape, and a compression-deformable cushioning member that closes a gap between the side surface portion and the wall surface of the peripheral edge is provided. To configure. Therefore, by inserting the upper end portion of the T-bar into the positioning portion, the T-bar can be easily positioned, and a rounded edge that can lock the T-bar between the upper receiving surface portion and the lower receiving surface portion can be configured. Installation and installation of the peripheral edge becomes easy. In addition, since the peripheral edge is not fixed to the wall surface, the work of driving the anchor bolts for attaching to the wall surface is not necessary. Further, since the cushioning member capable of being compressed and deformed is provided between the wall surface and the side surface portion of the peripheral edge, the blindfold can be provided while restricting the movement of the peripheral edge in the wall surface direction.

According to a fifth aspect of the invention, in the hanging structure for a system ceiling according to the fifth aspect, the positioning portion of the peripheral edge is formed by forming a notch in a shaped steel. Therefore, the manufacturing of the peripheral edge becomes extremely easy.

According to a seventh aspect of the present invention, in the hanging structure for the system ceiling according to the fifth or sixth aspect, the T is provided at the peripheral edge, at the upper receiving surface portion of the positioning portion.
The bar is configured to have a through hole for screw fastening. Therefore, since the T-bar can be screwed to the peripheral edge from above, the T-bar and the peripheral edge are integrated to increase the rigidity. Further, at that time, since it can be fastened from above, the construction is easy.

In the invention described in claim 8, claims 5 to 7 are provided.
In the hanging structure of the system ceiling, the peripheral edge is configured to have the lower receiving surface portion and the side surface portion at the entering corner portion. Therefore, the upper receiving surface portion does not project on the two sides inside the entering corner portion, so that the ceiling plate and the equipment plate can be attached from above after the T bar is installed.

According to a ninth aspect of the present invention, the first to eighth aspects are provided.
And a ceiling member for forming a ceiling on the grid-like base, which constitutes a system ceiling. Therefore, since the system ceiling suspension structure as described above is provided, the system ceiling has the same operation as described above.

[0023]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the accompanying drawings. Throughout all the drawings, the same or corresponding members are designated by the same reference numerals.

The suspension structure for the system ceiling according to the present invention is
The T-bars are assembled in a grid to form a grid-like base, which is hung from a slab or other skeleton, and a ceiling board made of rock wool soundproofing board or equipment for the ceiling is installed on the grid-like base from above. The hanging structure of the system ceiling that drops and locks the installed equipment plate, etc., and roughly the structure that suspends and locks the T-bar from the frame, and the structure of the rim that stores and locks the end face of the grid-like base Consists of.

First, the structure for suspending and locking the T-bar from the body will be described. FIG. 1 is a sectional view in the vicinity of an intersection of T-bars showing an embodiment of the present invention. The T-bar 2 is assembled in a grid shape as in the conventional case, the web 2a is directed upward, and the flange 2b is horizontally extended. The flange 2b forms a square-shaped opening inside the grid and serves as a receiving surface for locking the ceiling plate and the equipment plate. A wire locking hole 2c formed in the web 2a is provided near the intersection of the T-bars 2.

The slab surface 1b forming the lower surface of the frame 1 has a T
The locking metal piece 23 is locked right above the intersection of the bars 2 and the locking metal piece 5 is locked by, for example, a tack 6 at a predetermined distance along the extending direction of the T bar 2 below. ing. The latch metal 23 is a member provided with a hole for passing the wire 24 for fixing the post and a hole for locking the slab 1b on the flat surface of the L-shaped metal fitting, and the latch metal 5 is, for example, L Slab 1b on one side of the mold
It is a member provided with a hole for tacking.

As shown in FIG. 2, a post 3 (compression column member) is disposed between the intersection of the T-bar 2 and the slab surface 1b immediately above which the locking metal member 23 is fixed. There is. The post 3 is a square steel base material having a square cross section of, for example, 40 × 40 mm or 40 × 25 mm, which is conventionally used as a stud. When the longitudinal direction is set vertically, the upper end is flatly cut off in the horizontal direction, and the lower end is fit into the webs 2a of the four T-bars 2 at the intersections so that the slits 3a (position regulating portion) can be fitted. ) Is provided. The slit 3a is provided at a position such that when the slit 3a is fitted to the web 2a, the rectangular side surfaces of the square steel base material are aligned substantially parallel to the extending direction of the T-bar 2. Therefore, the height of the T bar 2 from the slab surface 1b is regulated by the post 3 when the slits 3a are fitted to the T bars 2 and the upper ends thereof are in contact with the slab surface 1b.

Inside the post 3, there is an engaging metal member 23 on the slab surface 1b, and a post fixing wire 24 is passed through the hole to be engaged, and the post fixing wire 24 is passed through the inside of the post 3. The wire locking hole 2
After passing through c, tension is applied to the T-bar 2 so as to fit in the slit 3a in the vertical direction, and the T-bar 2 is wound around and locked on the post 3, for example.

Further, as shown in FIGS. 1 and 3, between the side surface of the post 3 and the locking metal 5, a brace member 4 made by cutting a shaped steel such as a grooved steel is vertically slanted. It is extended and arranged, and both ends thereof are fixed to the post 3 (FIG. 3) and the locking metal 5 (FIG. 4A) by spot welding or the like. Since the post 3 is locked to the T-bar 2 by the slit 3a, the T-bar 2 is horizontally locked by the brace member 4 as a result. The brace member 4 is horizontally fixed at its end on the fixed side of the post 3. For this reason, the downward protrusion is suppressed so that it does not get in the way when the ceiling plate is dropped.

Next, the structure of the peripheral edge according to the present invention will be described. FIG. 5 is a perspective view showing a peripheral edge according to the present invention. FIG. 6 is a cross-sectional view showing how the T-bar 2 and the body 1 are locked. As shown in FIGS. 5 (a) and 6 (a), most of the peripheral edge 8 used for the suspension structure of the system ceiling according to the present invention is formed by bending a straight line at right angles three times in the same direction. Positioning slit 8e which is made up of four channel-shaped members having a cross section such that the end portion of the T-bar 2 assembled in a grid shape is inserted and locked from the side surface.
It is provided with a (positioning portion) and surrounds the T-bar 2 in a rectangular shape to form a ceiling edge.

More specifically, the channel-like shape of the peripheral edge 8 includes a lower receiving surface portion 8a extending in the horizontal direction, a side surface portion 8b extending in the vertical direction from the end portion thereof and facing the wall surface 1a of the skeleton 1, and its side surface. The upper receiving surface portion 8c extends horizontally from the portion 8b and faces the lower receiving surface portion 8a, and the shielding portion 8d extends downward from the end of the upper receiving surface portion 8c. The facing distance between the lower receiving surface portion 8a and the upper receiving surface portion 8c is
The T bar 2 is provided with a height from the upper end surface of the web 2a to the lower end surface of the flange 2b.

The shape different from the above is the entering corner portion 8g (FIG. 5B) when it is first assembled in a square shape, in which there is an L-shaped cross section composed of the lower receiving surface portion 8a and the side surface portion 8b. Is doing. Further, in the positioning slit 8e into which the T bar 2 is inserted, the shielding portion 8d is cut out, and the web 2a
Is provided with a slit shape having a width for fitting. Further, the upper receiving surface portion 8c is provided with a through hole 8f for screw-fastening the T bar 2 at a position within the width of the positioning slit 8e.

As shown in FIG. 6 (a), the width of the lower receiving surface portion 8a and the upper receiving surface portion 8c in the sectional direction is such that when the T bar 2 is inserted into the peripheral edge 8, the length a of the T bar 2 is a. The play length for swallowing the manufacturing error is a width that is built in as a margin.

A clearance necessary for assembling is provided between the side surface portion 8b and the wall surface 1a, and the clearance covers the clearance as a blind, and a compressible and deformable buffer that regulates the horizontal movement of the peripheral edge 8. The material 11 (buffer member) is arranged on the side surface portion 8b by, for example, tape fixing. As the material of the cushioning material 11, any material used as a cushioning material, a cushioning material, or a sealing material can be adopted. For example, a foam such as polyurethane or polyethylene,
Rubber or elastomer and foams thereof can be adopted.

Next, the construction for suspending the system ceiling using the present invention described above will be explained. First, the locking metal member 23 is fixed from below by the tack 6 in accordance with the hanging position and the arrangement position of the brace member 4 on the slab surface 1b of the skeleton 1.

Next, the T-bars 2 are assembled in a grid shape to assemble a grid-shaped base. Then, the end portion of the T-bar 2 is fixed by the peripheral edge 8. At this time, since the peripheral edge 8 is provided with the positioning slit 8e in advance, the T-bar 2 can be easily locked without performing marking out, which is troublesome for construction.

Further, since the peripheral edge 8 is locked in the horizontal direction by the positioning slit 8e and in the vertical direction by the lower receiving surface portion 8a and the upper receiving surface portion 8c, unlike the case where the T bar is simply placed from above, the peripheral edge 8 is firmly fixed. It is locked.

However, if it is necessary to further increase the rigidity for reasons such as earthquake resistance and construction work efficiency, the upper receiving surface 8
The web 2a and the peripheral edge 8 are screw-fastened with a screw 10 such as a tapping screw through a through hole 8f provided in c.

As described above, since the peripheral edge 8 is not fixed to the wall surface 1a, it is not necessary to drive an anchor bolt or the like for fixing to the wall surface 1a, and only the slab surface 1b is applied to the skeleton 1. Therefore, the labor of construction can be saved. Furthermore, even when a building is renewed, for example, the wall surface 1
There is no need to perform work that further damages the marks of the existing peripheral edge of a. As a result, there is an advantage that the system ceiling can be constructed inexpensively even in the renewal construction.

Next, the post fixing wire 24 is locked in the wire locking hole 2c of the T bar 2. Subsequently, the post fixing wire 24 is passed through the inside of the post 3 and then the slit 3a is fitted from above so as to straddle the web 2a at the intersection.

Then, the T-bar 2 is lifted, the post fixing wires 24 are locked to the locking metal members 23 to be locked, and pulled up. When the height is determined, the wires are twisted and the position is changed. To fix. At this time, post 3
Is a span material between the slab surface 1b and the T bar 2, so
By pulling the post fixing wire 24 and hoisting the T bar 2 with the post 3 without rattling, the entire horizontal level is obtained. Therefore, there is no need for adjustment or confirmation, which is extremely convenient.

Next, the brace member 4 is arranged. First, the position where the plane where the brace member 4 is welded or fixed by screws is aligned with the side surface of the post 3 is selected, and the locking metal 5 is struck on the slab surface 1b with the tack 6. At this time, as shown in FIG. 4 (b), the locking metal 5 can be rotated in the horizontal direction after the rivet is driven, so that the fixing surface can be easily aligned.

Further, since the height of the T-bar 2 has already been determined at the time of this work, and the brace member 4 may be disposed while maintaining the height, the position of the brace member 4 may be adjusted according to the actual product. In other words, it is possible to temporarily place the brace member 4 on the side faces of the locking metal 5 and the post 3 that have been struck and perform spot welding.

Once the brace member 4 is welded or fixed with screws, it will not loosen even if it is repeatedly subjected to vibration like a wire, so that it becomes a very stable brace and the seismic resistance of the system ceiling is improved. is there.

Since the installation of the ceiling base is completed as described above, next, the ceiling board and the equipment plate are dropped from above to form the system ceiling, and wiring work and the like are performed behind the ceiling.

At this time, according to the present invention, as shown in FIG. 5B, the entering corner portion 8g of the peripheral edge 8 has an L-shaped cross section, and the upper receiving surface portion 8c and the like are formed from two sides. Since it does not project to the inside of the grid, the ceiling plate 9 can be easily dropped from above, which is convenient.

By the way, the cushioning material 11 provided on the side surface portion 8b of the surrounding edge 8 is a blind for filling the gap between the surrounding edge 8 and the wall surface 1a. This is convenient because there is a dimensional allowance for attachment to the wall surface 1a.

Further, since the T-bar 2 is structured so as to be locked to the peripheral edge 8, the peripheral edge 8 also moves along with the lateral swing of the T-bar 2. Since the cushioning material 11 also exerts an effect as a cushioning material against such rolling, damage does not occur even when rolling. Therefore, it is possible to use the wall surface 1a as a horizontal locking member for the T bar 2. In this case, if the area is small, the brace member 4 can be deleted or eliminated, and the cost of the brace component can be reduced. .

In the above description, the post 3 is described as a square steel base material, but if the post 3 is square, the brace member 4 can be easily fixed, and the post 3 is not limited to the square. For example, the end of a pipe material such as a circular pipe may be drawn into a square shape, or the main body may be made of a circular pipe and fixed to the main body through a square steel base material only at the portion where the brace member 4 is fixed. May be.

The structure and operation of the modified example of the present invention will be described below. FIG. 7 shows a modified example of fixing the brace member 4. In this example, the brace member 4 is not fixed to the post 3 but to the T bar 2 by, for example, welding or screw fastening.

According to this structure, the horizontal direction of the T-bar 2 is regulated by the brace member 4, so that the width direction of the slit 3a can have a width having a large play with the web 2a. Therefore, since the processing accuracy of the slit 3a can be loosened, the manufacturing cost of the post 3 can be reduced. Further, since the brace member 4 is not fixed to the post 3, there is an advantage that the post 3 can be employed without additional machining such as a circular pipe other than the square steel base material.

Next, what is shown in the exploded perspective view of FIG. 8 is a modification of the compression column member. In this example, for example, the post support metal member 7 is provided with a post body 12 made of a square steel base material whose both ends are cut off horizontally, and a post portion 12 that engages with the T bar 2 and with the post body 12. The (connecting member) is connected to form a compression pillar member. For convenience of illustration, members similar to the above, such as the post fixing wire 24, are omitted.

As shown in FIG. 9 (a), the post supporting metal member 7 is provided with a cross-shaped upper surface receiving portion 7b adapted to the width and arrangement of the upper surfaces of the webs 2a of the intersecting T-bars 2, and on top of that, A convex portion 7a that can be fitted to the inner surface or the outer surface of the post body 12 is provided. Side surface receiving portions 7c (holding portions) that extend downward from the respective ends of the upper surface receiving portion 7b that extend radially and are capable of holding the width of the web 2a are provided. When the web 2a is sandwiched, the side surface receiving portion 7c is provided with a locking claw 7d having a convex shape that is locked by, for example, a step provided on the web 2a to prevent coming off.
Is provided.

FIG. 9B shows a state in which the web 2a is clamped by the side surface receiving portion 7c of the post supporting metal 7, the post main body 12 is fitted into the convex portion 7a from above, and they are connected to each other. Is. In addition, the post support hardware 7 and the post 12
Since is a compression-side regulating member, it is not necessary to fix each by welding or screw fastening.

The post supporting metal member 7 can be manufactured in various shapes by using various materials such as metal and synthetic resin. For example, the shape shown in FIG. 9A is obtained by punching out one steel plate. It can be easily manufactured by processing a sheet metal mold that is appropriately bent. Further, since the post supporting metal member 7 is relatively small, it is easy to manufacture it with a synthetic resin mold, mass production is possible, and it can be manufactured at low cost.

Further, since the post body does not need to be machined on the pipe material like the slit 3a provided in the post 3, the post body 12 can be manufactured at low cost.

Therefore, according to this structure, the post main body 12 which occupies most of the compression pillar member is manufactured by a general-purpose member having a simple shape, and the post supporting metal member 7 occupying a smaller part is manufactured by another member. For example, there is an advantage that the compression column member can be configured at a low cost as a whole by manufacturing it with a mold that can be easily mass-produced.

In the present modification, the post 12 is described as a square steel base material, but if the fitting shape of the convex portion 7a is matched, it is possible to employ a tubular material of any shape other than the square shape. Needless to say.

[0059]

As described above, in the invention described in claim 1, the use of the shaped steel for the brace member eliminates the need for tension adjustment, fixing both ends without loosening, and repeating the vibration. Since a stable brace can be provided, it has an effect of improving earthquake resistance and facilitating construction.

According to the second aspect of the invention, since the upward deformation of the T-bar is restricted by the rigidity of the pipe material, the compression pillar member can be made of an inexpensive material without providing an expensive stopper mechanism. This has the effect of reducing the manufacturing cost of the system ceiling.

According to the third aspect of the present invention, the tubular member for restricting the upward deformation of the T-bar, which requires a greater rigidity, is manufactured in a simple shape, and the holding portion requiring a more complicated shape is formed as a separate member. Therefore, the production of the compression column member becomes easy as a whole, and the production cost can be reduced.

In the invention according to claim 4, the brace member can be attached in a state in which the height of the T bar is regulated by the compression column member, and it is not necessary to adjust the height at the time of attachment. Further, since the mounting portion is locked to the rectangular steel base material having a flat surface, the brace member can be easily locked, the efficiency of the construction can be improved, and the construction cost can be suppressed. Play.

According to the fifth aspect of the present invention, the T-bar is easily positioned by inserting the upper end of the T-bar into the positioning portion, and the T-bar is locked between the upper receiving surface portion and the lower receiving surface portion. Since it is possible to configure a surrounding edge that can be formed, and it is easy to attach and install the surrounding edge, it is possible to improve the efficiency of the construction and reduce the construction cost. Furthermore, since a cushioning member capable of being compressed and deformed is provided between the wall surface and the side surface portion of the peripheral edge, the movement of the peripheral edge in the wall surface direction can be combined with the blindfold, so that the earthquake resistance is improved,
This has the effect of reducing manufacturing costs.

According to the sixth aspect of the present invention, since the rounded edge is formed by providing a notch in a part of the inexpensive shaped steel, it is possible to obtain an inexpensive rounded edge.

In the invention according to claim 7, since the T-bar can be screwed to the peripheral edge from above, the construction work is extremely easy, and the T-bar and the peripheral edge are integrated by the screw fastening, and the rigidity is increased. As a result, the effect of improving the earthquake resistance and facilitating handling such as movement of the ceiling base during construction is achieved.

According to the invention as set forth in claim 8, since the upper receiving surface portion does not project on the two sides inside the entering corner portion, the ceiling plate and the equipment plate can be attached from above after the T bar is constructed, The construction efficiency is improved and the construction cost can be suppressed.

According to the invention described in claim 9, since the system ceiling is provided with the above-described system ceiling suspension structure, the same effect as the above can be obtained.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view showing an embodiment of a suspension structure for a system ceiling according to the present invention.

FIG. 2 is an exploded perspective view showing a locking relationship between a T bar and a compression column member.

FIG. 3 is a perspective view for explaining how the brace member is locked.

FIG. 4 is a schematic perspective view showing how a brace member and a metal fitting are attached.

FIG. 5 is a perspective view showing an embodiment of a rim used in the suspension structure for the system ceiling according to the present invention.

FIG. 6 is a partial cross-sectional view showing an embodiment of a peripheral edge used in the suspension structure for the system ceiling according to the present invention.

FIG. 7 is a perspective view for explaining a modified example of the locking of the brace member according to the present invention.

FIG. 8 is an exploded perspective view for explaining a modified example of the compression pillar member according to the present invention.

FIG. 9 is a perspective view showing an embodiment of a connecting member according to the present invention.

FIG. 10 is a perspective partial sectional view for explaining the configuration of a conventional system ceiling suspension structure.

FIG. 11 is an explanatory diagram showing a schematic configuration of a conventional system ceiling suspension structure.

[Explanation of symbols]

1 body 1a wall surface 1b Slab surface 2 T bar 2a Web 3 post (compression column member) 3a slit (position control unit) 4 brace members 5 locking hardware 7 Post support hardware (connecting member) 7a convex part 7b Top receiving part 7c Side receiving part (holding part) 8 rim 8a Lower receiving surface part 8b side part 8c Upper receiving surface 8d shield 8e Positioning slit (positioning part) 8f through hole 8g corner 9 ceiling board 11 Buffer material (buffer member) 12 post body 24 Post fixing wire (wire)

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Tsuyoshi Ishihara             Shimizu Construction 1-3-2 Shibaura, Minato-ku, Tokyo             Within the corporation (72) Inventor Katsuhide Saito             2-18-2 Kyobashi, Chuo-ku, Tokyo Meikaikyo             Hashi Building Inside Milx Co., Ltd.

Claims (9)

[Claims] 1. A T-bar is assembled in a grid shape, and is hung from a skeleton by a wire at a position where the T-bars intersect each other to form a grid-like base for arranging a system ceiling. A compression pillar member for restricting upward deformation of the T-bar is arranged so as to surround the wire, and a horizontal position of the T-bar is restricted by a brace member locked to the body. In the suspension structure of a system ceiling, the brace member is made of shaped steel, one end of the brace member is fixed to a metal fitting which is locked to a body, and the other end is fixed to the T-bar. This is a system ceiling suspension structure. 2. The T-bars are assembled in a grid shape, and the T-bars are hung from the skeleton by a wire at a position where the T-bars intersect each other to form a grid-like base for arranging a system ceiling. A compression pillar member for restricting upward deformation of the T-bar is arranged so as to surround the wire, and a horizontal position of the T-bar is restricted by a brace member locked to the body. In the suspension structure of the system ceiling, the compression pillar member is made of a pipe material, and the end of the compression pillar member straddles the upper end of the intersecting T-bars to regulate the position in the upper and horizontal directions and lock the position. A suspension structure for the system ceiling, which is characterized by the provision of a regulation section. 3. The system ceiling suspension structure according to claim 2, wherein the compression pillar member is provided with a pipe member having both ends cut off, and a convex portion engaged with an end portion of the pipe member in an upper portion, A suspending structure for a system ceiling, comprising: a connecting member provided with a sandwiching portion that restricts and locks the upper and horizontal positions of the intersecting T-bars in an upward and horizontal direction. 4. The suspension structure for a system ceiling according to claim 2, wherein the compression pillar member is made of a square steel base material (LGS), and the brace member is made of shaped steel. A system ceiling suspension structure characterized in that one end is welded to a metal fitting which is locked to the body and the other end is fixed by being locked to the side surface of the square steel base material. . 5. The T-bars are assembled in a grid shape, and the T-bars are hung from the skeleton by a wire at a position where the T-bars intersect each other to form a grid-like base for arranging a system ceiling. A suspension structure for a system ceiling is provided with a peripheral edge portion that accommodates and locks the end portion of the T-bar, wherein the peripheral edge has a horizontal arrangement for receiving a lower surface of the end portion of the T-bar. A lower receiving surface portion, a side surface portion extending vertically from an end portion of the lower receiving surface portion and facing a wall surface of the skeleton, and a lower side receiving surface extending horizontally from an upper end portion of the side surface portion. An upper receiving surface portion facing the surface portion and positioned to receive the upper surface of the end portion of the T-bar, and the upper receiving surface portion for restricting a horizontal position of the end portion of the T-bar in a direction along the wall surface. A shielding part that extends vertically downward from the end face of the surface part, A member having a positioning portion formed by forming a slit for sandwiching and positioning the upper end portion of the T-bar by the end portion of the shield portion in the width direction is assembled in a square shape, A suspension structure for a system ceiling, characterized in that a cushioning member that is compressively deformable is provided between a side surface portion and the wall surface so as to close a gap therebetween. 6. The system ceiling suspension structure according to claim 5, wherein the shielding portion of the peripheral edge is formed by forming a notch in a shaped steel. 7. The suspension structure for a system ceiling according to claim 5, wherein a through hole for screw-fastening the T-bar is provided in the peripheral edge, in the upper receiving surface portion of the positioning portion. Suspended structure for the system ceiling. 8. The suspension structure for a system ceiling according to claim 5, wherein the peripheral edge is formed of the lower receiving surface portion and the side surface portion at the entering corner thereof. 9. A system ceiling, comprising the system ceiling suspension structure according to any one of claims 1 to 8, wherein a ceiling member for forming a ceiling is locked on the grid-like base.