JP4219882B2 - Ceiling structure - Google Patents

Description

  The present invention relates to a ceiling structure suitable for use in underground spaces such as a basement, an underground mall, and a subway.

  Conventionally, it is common practice to form a ceiling by fixing the tops of a number of suspension bolts to a ceiling slab that forms an underground space and attaching a plurality of ceiling panels to the ceiling foundation supported by the suspension bolts. Yes.

  In general, sufficient measures are taken for water leakage in underground spaces, but they are not perfect. For this reason, when water leaks from the ceiling slab, the water leaks to the top surface of the ceiling.

  By the way, in the conventional ceiling structure in the underground space, the measures for water leakage from the ceiling slab are insufficient, and when the ceiling panel is a water-permeable panel, the panel is It penetrates and stains the bottom of the ceiling.

  In addition, when the ceiling panel is a metal non-permeable panel, there is a risk of water leakage from the connection portion of the ceiling panel.

  An object of the present invention is to provide a ceiling structure capable of effectively draining water leaking from a ceiling slab to the ceiling upper surface and preventing the ceiling from being soiled and dripping. That is.

In order to solve the above problems, in the present invention, to support the ceiling by a support ceiling foundation suspended slabs, the ceiling, a plurality of gutter-shaped ceiling panel connected lengthwise by a joint bracket In the ceiling structure comprising a structure in which the connecting bodies are sequentially connected in the width direction, the ceiling is supported so that the connecting body comprising a plurality of ceiling panels inclines with a downward slope from one end to the other end. A water collecting collar is provided on the other end side of the connection body, and the joint fitting is formed with a water passage that allows the water flowing along the upper surface of the ceiling panel located on the upstream side to flow downstream. The configuration was adopted.

  Here, as a joint metal fitting, a fixed bar that is attached to the ceiling base so as to be orthogonal to the length direction of the connection body, a support bar that is disposed opposite to the fixed bar, and a connection that connects the support bar to the fixed bar A support piece for supporting both ends of the ceiling panel and holding the upper surface of the ceiling panel at the same height as the upper surface of the support bar on both sides of the support bar; and A pair of opposing hook pieces that are in contact with the lower surface of the fixed bar are formed on both sides of the upper surface of the support bar at intervals in the length direction of the support bar. By adopting a water channel configuration, after the fixing bar is attached, the support bar can be coupled to the fixing bar, and the ceiling panel can be easily connected in the length direction.

  In the joint metal fitting having the above-described configuration, when the pressing pieces for pressing the both ends of the ceiling panel against the support pieces are provided on both sides of the lower surface of the fixed bar, the lifting pieces can prevent the ceiling panels from being lifted up. The stability of the ceiling panel can be improved.

  Further, as a coupling tool, a bent piece that is U-shaped in cross section and that can be engaged with the upper surface of the L-shaped protrusion provided on both sides of the lower surface of the fixing bar is formed outwardly on the upper edge of the opposing side plate. Each of the side plates has a structure in which cut-and-raised engagement pieces are provided that protrude outward and can be engaged with the flanges of a pair of opposed hook pieces provided on both sides of the upper surface of the support bar. Then, the bent piece is engaged with the protrusion of the fixed bar attached to the ceiling base to attach the connecting tool, and the support bar is connected between the opposing hook pieces provided on the upper surface of the connecting tool from below the connecting tool. When the tool is pushed up so as to fit, the hook piece engages with the engagement piece, so that the support bar can be easily connected to the fixing bar without using a tool.

  As described above, the connecting body of the ceiling panel connected in the length direction by the joint bracket is inclined with a downward slope from one end to the other end, and a flange is provided at the other end, and the joint bracket has an upstream side thereof When water leaks from the ceiling slab to the top surface of the ceiling, water leaks along the slope of the connecting body. It will flow into the collar part, and the ceiling can be prevented from being damaged by water leakage, or leakage of water from the connection part of the ceiling panel can be prevented.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. As shown in FIG. 2, upper portions of a plurality of suspension bolts 2 are fixed to a ceiling slab 1 in an underground space, and a ceiling base 10 is supported by a hanger 3 attached to a lower end portion of each suspension bolt 2.

  As shown in FIGS. 1 to 3, the ceiling foundation 10 includes a plurality of parallel edge receivers 11 supported by the hanger 3 and a field edge extending in a direction perpendicular to the field receiver 11. 12 and a clip 13 connecting the intersection of the field edge 12 and the field edge receiver 11, and the ceiling 20 is supported by the ceiling base 10.

  The ceiling 20 is composed of a number of ceiling panels 21. As shown in FIG. 2, the ceiling panel 21 is formed by bending a thin metal plate, and a pair of flanges 21b are provided on both sides of an elongated strip-like panel body 21a, and an inner edge is formed on the upper edge of one flange 21b. A bending piece 21c facing is provided, an outward mounting piece 21d is formed on the side edge of the bending piece 21c, a connection groove 21e is provided between the bending piece 21c and the other flange 21b. It has a bowl-like configuration in which an insertion piece 21f that can be inserted into the connection groove 21e is provided on the upper edge.

  As shown in FIG. 3, the plurality of ceiling panels 21 are connected in the length direction by joint fittings 30, and the connection bodies formed by the connection are arranged in parallel in the width direction as shown in FIG. 2, and the width direction The ceiling 20 is formed by inserting the insertion piece 21f of the adjacent ceiling panel 21 into the connection groove 21e of the other ceiling panel 21 and connecting the connection bodies parallel in the width direction.

  The ceiling 20 configured as described above is a support in which the ceiling panel 21 extends in a direction orthogonal to the length direction of the field edge 12.

  As shown in FIG. 4, the joint fitting 30 includes a fixed bar 31, a support bar 32 disposed to face the fixed bar 31, and a connector 33 that connects the support bar 32 to the fixed bar 31. .

  The fixing bar 31 is abutted against the lower surface of the field edge 12, extends in the length direction of the field edge 12, and is fixed by tightening a tapping screw 34 screwed into the field edge 12 from the lower surface.

  A pair of L-shaped protrusions 35 are provided on both sides of the lower surface of the fixed bar 31. The fixing bar 31 is provided with a pressing piece 36 that presses the end of the ceiling panel 21 on the lower surface of each L-shaped protrusion 35.

  The support bar 32 has support pieces 37 on both sides for supporting the end of the ceiling panel 21 and holding the upper surface of the ceiling panel 21 and the upper surface of the support bar 32 at the same height. Each support piece 37 extends in the length direction of the support bar 32, and a fitting groove 38 extending in the length direction is provided on the upper surface of the support piece 37, and an elastic seal member 39 is fitted in each fitting groove 38. .

  The seal member 39 is in elastic contact with the lower surface of the ceiling panel 21 to maintain water tightness between the support piece 37 and the facing portion of the ceiling panel 21. In addition, a pair of opposing hook pieces 40 that are in contact with the lower surface of the fixed bar 31 on both sides of the upper surface of the support bar 32 and maintain a constant distance between the support bar 32 and the fixed bar 31 are provided in the length direction of the support bar 32. A space between the hook pieces 40 arranged in the longitudinal direction of the support bar 32 is a water passage 41.

  The connecting member 33 has a U-shaped cross section, and bent pieces 43 are provided outward on the upper edges of the opposing side plates 42, and each bent piece 43 is provided on the lower surface of the fixed bar 31. It can be engaged with the upper surface of the strip 35. Each side plate 42 of the connector 33 is formed with a cut-and-raised engagement piece 44 protruding outward. The engagement piece 44 is formed in a dogleg shape, and the bent portion 44 a is engageable with a hook portion 40 a at the upper end of the hook piece 40 provided on the upper surface of the support bar 32.

  When assembling the joint fitting 30 having the above-described configuration, the fixing bar 31 is screwed to the lower surface of the field edge 12, and the connection tool 33 is bent to the upper surfaces of the pair of L-shaped protrusions 35 formed on the fixing bar 31. The connecting member 33 is attached to the fixed bar 31 by engaging the piece 43, the support bar 32 is positioned below the connecting member 33, and the connecting member 33 is connected between the pair of opposed hook pieces 40 provided on the supporting bar 32. Then, the support bar 32 is pushed up to a position where the upper end of the hook piece 40 comes into contact with the lower surface of the fixed bar 31.

  When the support bar 32 is pushed up, the pair of opposed hook pieces 40 abut against the engaging pieces 44 and elastically deform the engaging pieces 44 inward, so that the flange 40a at the upper end of the hook piece 40 is engaged with the engaging pieces. After passing through the bent portion 44a of 44, the engaging piece 44 is deformed outward due to restoring elasticity, and the bent portion 44a engages with the flange portion 40a of the hook piece 40, whereby the support bar 32 is fixed to the fixed bar 31. The joint fitting 30 is held in the assembled state.

  Here, the joint metal fitting 30 has a certain length, and when the joint metal fitting 30 is used by being added, the joint metal fitting 30 is connected by the connection tool 50 using the connection tool 50 shown in FIGS. To do.

  The connection tool 50 erects a pair of side plates 52 from both sides of a bottom plate 51 having a length straddling the pair of support bars 32 to be connected, and is brought into contact with the lower surface of the L-shaped protrusion 35 on each side plate 52. Inwardly bent pieces 53 are provided, fitted to the side edges of one bent piece 53 between a pair of L-shaped ridges 35, and elastically contacted with the inner surfaces of the pair of L-shaped ridges 35. A letter-shaped joining piece 54 is provided, and a sealing member 55 that is in close contact with the upper surface of the support bar 32 is fixed to the lower surface of the bottom plate 51 by means of adhesion.

  As shown in FIG. 3, the ceiling 20 is an inclined support in which a connecting body of the ceiling panel 21 connected in the length direction by the joint fitting 30 is inclined with a downward gradient from one end to the other end. . On the four sides of the outer periphery of the portion in contact with the wall surface W of the ceiling 20, parting edges 60 as ridges are provided.

  As shown in FIG. 5, the parting edge 60 includes an upper bar 61, a lower bar 62 attached to the lower surface of the upper bar 61, and a clip 63 that attaches the lower bar 62 to the upper bar 61.

  The upper bar 61 is fixed by a tapping screw 64 that is screwed into the field edge 12 from below. On both sides of the lower surface of the upper bar 61, a ridge 65 having an L-shaped cross section is provided. A plurality of presser pieces 66 are formed at intervals.

  The lower bar 62 is provided with a support piece 67 that supports the outer peripheral portion of the lower surface of the ceiling 20 on the inner side when attached to the upper bar 61. A seal member 69 is provided in elastic contact with the outer periphery of the lower surface of the ceiling 20. A pair of protrusions 70a and 70b having an L-shaped cross section are provided on both sides of the upper surface of the lower bar 62. Consisting of continuous ridges. A gap 71 is formed between the pair of protrusions 70a and 70b, and the flange 71 is inclined with a downward slope in the length direction.

  The clip 63 has a U-shaped cross section, and a hook piece 73 is provided outward on the upper edge of the opposing side plate 72. Further, each of the opposing side plates 72 is provided with a cut-and-raised engagement piece 74 that is inclined outward.

  The clip 63 is connected to the upper bar 61 by the engagement of the hook piece 73 with the L-shaped protrusion 65 of the upper bar 61 and the engagement of the engagement piece 74 with the L-shaped protrusions 70a and 70b formed on the lower bar 62. The lower bar 62 is connected, that is, the parting edge 60 is held in the assembled state.

  The ceiling structure shown in the embodiment has the above-described structure, and when water leakage occurs in the ceiling slab 1, the water leakage drops on the upper surface of the ceiling 20. At this time, the plurality of ceiling panels 21 forming the ceiling 20 have a bowl shape, the ceiling panel 21 is inclined with a downward slope in the length direction, and the joint fitting 30 that connects the ceiling panel 21 in the length direction. Since the water passage 41 is provided, the water leaking on the upper surface of the ceiling 20 flows along the inclination of the ceiling panel 21 and flows into the flange portion 71 of the parting edge 60. At this time, since the flange 71 is inclined with a downward slope in the length direction, the water leaked into the flange 71 flows along the inclination of the flange 71.

  For this reason, by forming a drain outlet at the downstream end of the flange 71 and connecting a drain pipe to the drain outlet, the water leakage can be appropriately drained.

  As described above, since the water leaking from the ceiling slab 1 to the upper surface of the ceiling 20 is collected and drained by the flange portion 71 of the parting edge 60, the water leakage can be smoothly drained even when there is a lot of water leak. Further, it is possible to completely prevent the inconvenience of leaking from the connection portion of the ceiling panel 21 forming the ceiling 20 to the lower surface side of the ceiling 20 and dropping into the underground space.

  Further, since the ceiling panel 21 is made of a thin metal plate, it is possible to completely prevent the occurrence of inconvenience that water leaked onto the upper surface of the ceiling 20 penetrates into the ceiling panel 21 and the lower surface is soiled.

The perspective view which shows embodiment of the ceiling structure which concerns on this invention 1 is a longitudinal front view of FIG. 1 is a longitudinal side view of FIG. Sectional drawing which expands and shows the joint metal fitting shown in FIG. Enlarged sectional view of the parting edge shown in FIG. Exploded perspective view of joint bracket Sectional drawing in the assembly state of the joint metal fitting shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Slab 10 Ceiling base 20 Ceiling 21 Ceiling panel 30 Joint metal fitting 31 Fixing bar 32 Support bar 33 Connecting tool 35 L-shaped protrusion 36 Pressing piece 37 Supporting piece 40 Hook piece 40a Ridge part 41 Water passage 42 Side plate 43 Bending piece 44 Engagement 71 buttock

Claims (4)

A ceiling composed of a structure in which a ceiling is supported by a ceiling base suspended from and supported by a slab, and a plurality of bowl- shaped ceiling panel connections connected in the length direction by joint fittings are sequentially connected in the width direction. In the structure, the connection body composed of a plurality of ceiling panels is supported in an inclined shape so as to incline with a downward slope from one end to the other end, and a water collecting paddle is provided on the other end side of the inclined connection body. A ceiling structure characterized in that a water flow path is formed in the joint fitting for flowing water flowing along the upper surface of the ceiling panel located on the upstream side to the downstream side.   A fixing bar that is attached to the ceiling base so that the joint fitting is orthogonal to the length direction of the connection body, a support bar that is disposed below the fixing bar, and a connector that connects the support bar to the fixing bar; The support bar is provided on both sides of the support bar, and is provided with support pieces that support both ends of the ceiling panel and hold the upper surface of the ceiling panel at the same height as the upper surface of the support bar. A pair of opposed hook pieces that are in contact with the lower surface of the fixed bar are formed on both sides of the upper surface of the support bar at intervals in the length direction of the support bar, and a water passage is formed between the hook pieces arranged in the length direction of the support bar. The ceiling structure according to claim 1.   The ceiling structure according to claim 2, wherein a pressing piece that presses both ends of the ceiling panel against the supporting piece is provided on both sides of the lower surface of the fixing bar.   The connector has a U-shaped cross section, and a bent piece that can be engaged with the upper surface of an L-shaped protrusion provided on both sides of the lower surface of the fixing bar is formed outward on the upper edge of the opposing side plate, 3. Each of the above-mentioned side plates comprises a structure in which cut-and-raised engagement pieces that protrude outward and can be engaged with flanges of a pair of opposed hook pieces provided on both sides of the upper surface of the support bar are provided. 3. The ceiling structure according to 3.

Images