JP5376580B2 - Ceiling foundation structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a ceiling backing structure allowing a simple passage to be easily manufactured in a short time to permit walking on the ceiling backing structure composed of ceiling joists, ceiling joist receivers, and the like. <P>SOLUTION: A holding fitting 16 is mounted to each ceiling joist receiver 13 crossing a walking passage forming predetermined part on the ceiling backing structure 10. Lip plates 21c of a plurality of plate bodies 21 constituting a walking plate 20 are inserted in slits (lock grooves) 19 of a locking part 17 provided on the holding fitting 16, and delivered while being locked to form the walking plate 20 at the walking passage forming predetermined part while adding each plate body 21 at a joint part 22. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a ceiling foundation structure, and more particularly, to a ceiling foundation structure including a passage that allows an inspector or an operator to walk on the ceiling, that is, on the ceiling foundation structure.

  In general, it is well known that a ceiling foundation structure is installed on a ceiling portion of a building structure such as a reinforced concrete structure at a predetermined interval from the casing ceiling portion. The ceiling foundation structure is configured by assembling a number of field edges and a number of field edge receivers in a lattice shape as disclosed in Patent Document 1, and the field edge receivers are mounted embedded in the frame ceiling part. It is supported by a bolt and a hanger attached to the mounting bolt, and the field edge is connected to the field edge receiver using a fixing clip or the like. The ceiling panel is attached to the field edge of the ceiling foundation structure.

  In the space called the so-called “back of the ceiling” above the ceiling base structure composed of the field edges and the field edge receivers assembled in a lattice shape in this way, Various facilities and wiring such as a communication cable or a ceiling-mounted air conditioner are installed. In such a ceiling, an inspector after installing the ceiling foundation structure to repair and change electric wires and communication cables, install new electric wires and communication cables, or inspect these electric wires, communication cables, and various facilities. Or an operator had to enter the ceiling. However, in the case of a ceiling base structure composed of a field edge and a field edge receiver, in general, an inspection port is formed on the ceiling panel attached to the field edge, but an inspector or work is performed on the back of the ceiling. There is no passage that allows a person to walk in and walk on the ceiling structure.

  Therefore, in many building structures including the above-described ceiling foundation structure, an inspector or an operator cannot enter and inspect the ceiling behind the ceiling, so all or one of the ceiling panels attached to the field edge can be used. I removed the part and exposed the back of the ceiling to perform necessary inspections and work. However, since the inspection, change or new installation work of the electric wires and communication cables installed on the back of the ceiling by removing the ceiling panel and exposing the back of the ceiling is very costly and the construction period is long, Patent Document 2 As disclosed, a technique for forming a walking path called a simple catwalk on the back of the ceiling has been proposed. In the system ceiling disclosed in Patent Document 2, two C-shaped steel members having a U-shaped cross section are arranged in parallel at an appropriate interval between a plurality of base bars supported by mounting bolts and the like. A plurality of suspension materials are arranged between the steel materials, and a scaffold plate is passed over the suspension materials.

JP 2008-025271 A Japanese Utility Model Publication No. 5-16925

  However, in the walking path (catwalk) in the system ceiling disclosed in Patent Document 2, the base bar and the C-type steel material, the C-type steel material and the suspension material, the suspension material and the scaffolding plate, and the like are fixed to each other. Therefore, when a building structure having such a ceiling foundation structure is subjected to shaking due to an earthquake or the like, there is a risk that the walking path itself will decompose and fall to the floor. In order to avoid such a danger, it is very troublesome to fix each element using bolts, nuts, welding or the like, and the formation of such a walking path is very costly. there were.

  An object of the present invention is to solve such a conventional problem, and in a short time, a simple passage capable of walking on a ceiling base structure composed of a field edge, a field edge receiver, and the like is provided. An object of the present invention is to provide a ceiling foundation structure that can be easily manufactured.

  The present invention comprises a mounting bolt attached to a building ceiling of a building structure, a field edge supported by a hanger attached to the installation bolt, and a field edge connected to the field edge receiver. The ceiling foundation structure is characterized in that a plurality of holding fittings attached to each of the field receivers crossing a planned pedestrian formation place on the ceiling foundation structure, and a joint portion at one end Provided, a walking board composed of a plurality of elongated plates that can be connected to each other by fitting the joint to the other end, locking pieces provided on the plates, and the walking board When the plate is placed on the upper part of the holding metal fitting and used as a passage, the engaging piece engages with each of the locking pieces, and is provided with an engaging part provided on the upper surface of each of the holding metal fittings. The locking provided on the upper surface of the piece and the holding bracket Enables the plate body to move in the length direction and locks the plate body in the width direction and the upward direction, and the walking board locks the locking pieces of the plate body to the locking bracket. The joint portion of the one end portion is sequentially fitted to the other end portion of the next plate body in a state where it is locked to the portion, and the joint portion is drawn out while being installed, and installed on the edge receiving portion of the planned walking path formation place. It is to be done.

  As another embodiment of the ceiling foundation structure according to the present invention, the holding bracket has an inverted U-shaped cross section, and an upper portion of the field receiver so as to relatively fit the field receiver in a groove portion thereof. It is mounted from.

  As another embodiment of the ceiling foundation structure according to the present invention, the locking portion is configured by an engaging groove formed in the length direction of the field edge receiver on the upper surface of the holding metal fitting.

  As another embodiment of the ceiling foundation structure according to the present invention, the plate body is an elongated substrate, a pair of leg plates projecting from both side edges of the substrate, and the side edges of the leg plates opposite to the side edges. And a flange piece projecting in a direction opposite to each other from the lower end edge, and the flange portion is a locking piece that is locked to the locking portion formed on the upper surface of the holding metal fitting.

  As another embodiment of the ceiling foundation structure according to the present invention, the joint portion provided at the one end of each plate is attached to the inner surface of the substrate and both leg plates of the plate, It is composed of a U-shaped joint projecting outward in the length direction from the one end of the plate body, and this U-shaped joint is fitted to the other end of the plate body and added to form the walking board. .

  According to the ceiling foundation structure of the present invention, the walking board is composed of a plurality of mutually connectable long and narrow plates, and each of the fields traversing the place where the walking path is to be formed on the ceiling foundation structure. Since it can be formed by being sequentially connected while being locked to the locking portions on the plurality of holding fittings attached to the edge holder, the walking board can be easily installed on the ceiling base structure. As a result, it is possible to install a walking board on the ceiling support structure with a short construction period and at a low cost, so that inspectors and workers can enter the back of the ceiling and quickly inspect, repair, and change electric wires and communication cables. Various constructions such as new construction can be performed.

  Further, according to the ceiling foundation structure of the present invention, the holding metal fitting attached to the field edge receiver has an inverted U-shaped cross section, and the field edge receiver is relatively fitted to the groove portion. Since it is attached only by attaching from the upper part, the holding metal fitting can be attached to the field edge holder in a short time and without requiring much labor.

  Further, according to the ceiling foundation structure of the present invention, the locking portion formed on the upper surface of the holding metal fitting is configured by the engaging groove formed in the length direction of the field edge receiver on the upper surface of the holding metal fitting. Therefore, the locking portion can be manufactured easily and inexpensively.

  Further, according to the ceiling foundation structure of the present invention, the plate body is relatively long from the elongated substrate, the pair of leg plates projecting from both side edge portions of the substrate, and the lower end edge opposite to the side edge portions of the leg plates. Since the flange portion is a locking piece that locks to the locking portion formed on the upper surface of the holding bracket, the flange portion is bridged over a plurality of field receivers. Since the pedestrian walking board is supported very stably with respect to the holding bracket, the inspector and the operator can walk on the pedestal board without any anxiety.

  Further, according to the ceiling foundation structure of the present invention, the joint portion provided at one end of each plate is attached to the inner surface of the plate and both leg plates, and the length from the one end of the plate is the length. Because it is composed of U-shaped joints protruding outward in the direction, when connecting a plurality of plates to form a walking board, the mutual connection is strong, so the strength of the walking board does not decrease .

1 is a perspective view schematically showing a ceiling foundation structure according to an embodiment of the present invention. The end elevation which shows the state which attaches a walk board to the latching | locking part of the holding | maintenance metal fitting with which the edge receiver of the ceiling foundation structure was mounted | worn. The perspective view which shows the formed walk board which connected the several plate body.

  Hereinafter, a preferred embodiment of the ceiling foundation structure of the present invention shown in the drawings will be described in detail. As shown in FIG. 1, a ceiling foundation structure 10 according to an embodiment of the present invention is attached to a mounting bolt 11 attached to a housing ceiling (not shown) of a building structure, and attached to the mounting bolt 11. The hanger 12 is formed, a field edge receiver 13 supported by the hanger 12, and a field edge 14 connected to the field edge receiver 13. The ceiling panel P is attached to the field edge 14 using screws or the like.

  The field edge receiver 13 is usually a long material having a U-shaped cross section, and is supported by being fitted into a groove portion of the U-shaped receiving portion 12 a of the hanger 12. The hanger 12 is attached to the mounting bolt 11 so that the mounting bolt 11 is relatively inserted through the hole of the mounting plate 12b formed on the hanger 12, and is attached with two nuts 15 screwed to the mounting bolt 11. The plate 12b is fixed at a predetermined position by being clamped so as to be sandwiched between the lower clamping surface and the upper clamping surface. In this way, a plurality of holding metal fittings 16 are attached to the field edge receiver 13 supported by the hanger 12 at a location that crosses the planned walking path formation location. The holding metal fitting 16 has an inverted U-shaped cross section, and is mounted from above the field edge receiver 13 so that the field edge receiver 13 is relatively fitted in the groove 16c.

  That is, the holding metal fitting 16 includes a pair of long and narrow side plates 16a opposed to each other and arranged substantially in parallel, and an upper plate 16b is arranged between one end edges (upper edges) of the side plates 16a. Yes. The upper plate 16b is connected to each side plate 16a, so that the holding metal fitting 16 has an inverted U shape in which the other end (lower edge) side of the both side plates 16a and both ends in the length direction are open. ing. The gap between the side plates 16a is formed to be slightly larger than the width of the field receiver 13 so that the field receiver 13 can be fitted into the groove 16c therebetween. A part of both side plates 16a on one end side in the length direction of the holding metal fitting 16 (on the right side of the holding metal fitting 16 in FIG. 1) extends from the upper edge connected to the upper plate 16b to the lower edge which is a free end. The fastening portion 16d is longer than the other portions, and the height of the fastening portion 16d, that is, the length from the upper edge to the lower edge, is at least longer than the height of the field receiver 13. Then, in these fastening portions 16d, when the holding metal fitting 16 is attached to the field edge receiver 13 as shown in FIG. 2, a portion protruding downward from the field edge receiver 13 has a hole for inserting a fastening bolt. 16e is formed.

  As is apparent from FIGS. 1 and 2, a locking portion 17 is attached to the upper plate 16 b of the holding metal 16. The locking portion 17 is formed of a single elongated strip 18, and the strip 18 is placed on the upper surface of the upper plate 16 b of the holding bracket 16 along the length direction thereof. The intermediate portion 18a is fixed to the upper plate 16 by welding or rivets. Both end portions 18 b of the band plate 18 are slightly bent with respect to the intermediate portion 18 a so as to form a slit 19 between the upper surface of the upper plate 16 b of the holding metal fitting 16. This slit 19 functions as a locking groove with the walking board 20 described later.

  A walking board 20 configured by connecting a plurality of elongate plate bodies 21 is placed on the holding metal fittings 16 attached to each of the plurality of field receivers 13 crossing the planned walking path formation place. The locking portion 17 is locked. As shown in FIGS. 1 to 3, each plate 21 is formed of a long groove shape with a lip. Specifically, each plate 21 includes an elongated substrate 21a serving as a passage surface, a pair of leg plates 21b projecting from both side edges of the plate 21a at substantially right angles and in the same direction, and edges of both leg plates 21b. And a lip plate 21c extending substantially in parallel with the substrate 21a and projecting as a flange portion in a direction opposite to each other. The lip plate 21 c is a locking piece that enters the slit 19 of the locking portion 17 attached to the upper surface of the upper plate 16 b in the holding metal fitting 16. Accordingly, the gap formed between the both end portions 18b of the band plate 18 and the upper surface of the upper plate 16a in the holding bracket 16 is approximately the same as or slightly larger than the thickness of the lip plate 21c in the plate body 21. In addition, the length of the band plate 18 is shorter than the distance between the opposing inner side surfaces of the leg plates 21b of the plate body 21 and longer than the distance between the opposing edges of the lip plates 21c. Further, under this condition, the depth of the slit 19 is set to a length that the lip plate 21c can be locked.

  One end portion of each plate 21 is provided with a joint portion 22 composed of an upper surface portion 22a and a side surface portion 22b projecting from the both side edges thereof at a substantially right angle to the upper surface portion 22a. The joint portion 22 is constituted by a groove member having a predetermined length which is integrally formed by bending a single aluminum plate. That is, about half of the channel member is fitted to one end of the plate 21 and attached to the inner surface thereof by means such as welding. Then, the remaining portion of the groove shape member protruding from one end portion of the plate body 21 functions as the joint portion 22. In other words, the upper surface portion 22 a of the joint portion 22 extends inward from one end portion of the plate body 21 and is in close contact with the inner surface of the substrate 21 a, and each side surface portion 22 b is one end of the plate body 21. It extends inward from the portion and is in close contact with the inner surfaces of both leg plates 21b. Therefore, the joint portion 22 protruding from one end portion of the plate body 21 can naturally be fitted to the other end portion of the plate body 21.

  A connecting hole 23 is formed in each side surface portion 22 b of the joint portion 22, and the joint portion 22 is fitted to the other end portion of the plate body 21 on the leg plate 21 b in the other end portion of the plate body 21. In this case, a connecting hole 24 is formed at a position corresponding to the hole 23 of the side surface portion 22b. Thereby, when the plurality of plate bodies 21 are connected by the joint portion 22, they are formed on the leg plate 21b at the other end portion of the plate body 21 connected to the hole 23 formed in the side surface portion 22b of the joint portion 22. Since the holes 24 are aligned with each other, bolts (not shown) are passed through these overlapping holes 23, 24, and nuts are screwed into the bolts and tightened. As a result, the connected plate bodies 21 do not easily come off and can be completely connected to each other.

  Next, in the ceiling foundation structure 10 according to the above-described embodiment, a procedure for forming the walking board 20 in particular will be described. When the ceiling foundation structure 10 according to the present embodiment is formed, first, a large number of field receivers 13 are supported at predetermined heights and orientations by hangers 12 fixed to a plurality of mounting bolts 11 in accordance with a regular method. A plurality of field edges 14 are connected to these field edge receivers 13 using clips (not shown) or the like. In this way, after the large number of field receivers 13 and the large number of field edges 14 are assembled in a lattice shape, the holding bracket 16 is attached to each field edge receiver 13 that crosses the planned location where the walking path is to be formed. The The holding metal fitting 16 is put on each of the field edge receivers 13 so that the field edge receivers 13 are relatively fitted in the groove portions 16c. Since the holding metal fitting 16 can be attached simply by being placed on the field edge receiver 13, the operation is very simple. The holding bracket 16 may be merely fitted to the field receiver 13, but for the sake of safety, a fastening bolt may be passed through the hole 16e of the fastening portion 16d and a nut may be screwed and fixed from the opposite side. preferable.

  Next, one plate body 21 constituting the walking board 20 is arranged in a direction orthogonal to the length direction of the field edge receiver 13, and the other end portion where the joint portion 22 is not provided is one piece. A lip plate or locking piece 21c is inserted into the slits or locking grooves 19 on both ends of the locking portion 17 on the holding metal 16 so as to be locked on the holding metal 16. Thereby, the plate body 21 moves in the length direction of the plate body 21 with respect to the locking portion 17, but does not move while being locked in the upward direction and the width direction. Then, the plate body 21 is pushed out in the direction in which the walking path is to be formed in a state where both the lip plates 21c are inserted into the slits (locking grooves) 19 of the locking portion 17 at the other end, and the next holding bracket When it reaches 16, both lip plates 21c are inserted into the slits 19 on both ends of the locking portion 17 provided on the upper plate 16b and locked. The total length of one plate body 21 is slightly longer than the interval between the field edge receivers 13. Therefore, when the other end, which is the moving tip of one plate 21, reaches the next holding metal 16, the joint 22 provided at one end of this plate 21 is replaced with another one plate. The other end of 21 is inserted and connected.

  Thereafter, the other connected plate body 21 is pushed out, and this operation is repeated. As a result, the worker does not move in the direction in which the walking path is to be formed, but stays in one place and simply sends out a large number of plate bodies 21 while sequentially connecting them. It is easy, and a large number of workers are not required for installation of the walking board 20, and one person is possible. Note that the plate members 21 connected to each other are aligned with the holes 23 of the joint portion 22 when the joint portion 22 is inserted into the other end portion of the connected plate body 21 as described above. The nut 24 can be firmly connected to the hole 24 formed in the leg plate 21b by screwing the nut through the fastening bolt, but such fastening is not essential.

  As described above, according to the ceiling foundation structure 10 according to the above-described embodiment, the walking board 20 is constituted by the plurality of elongated plate bodies 21 that can be connected to each other, and these plate bodies 21 are formed as the ceiling foundation structure body. 10 because it can be formed by being sequentially connected while being locked to the locking portions 17 on the plurality of holding brackets 16 mounted on the respective field edge receivers 13 crossing the planned walking path formation place on the ceiling base. The walking board 20 can be easily installed on the structure 10. As a result, since the walking board 20 can be installed on the ceiling support structure 10 with a short construction period and at a low cost, an inspector or an operator enters the back of the ceiling and quickly checks and repairs the electric wires and communication cables. Various constructions such as changes and new establishments can be performed.

  Further, according to the ceiling foundation structure 10 of the present embodiment, when the ceiling foundation structure is newly installed, if the holding metal fitting 16 is attached in advance to the field receiver 13 that crosses the planned walking path formation location, When it is necessary to repair or change electric wires or communication cables, install new electric wires or communication cables, or inspect these electric wires, communication cables, or various facilities, from a single inspection port formed on the ceiling panel P Since the walking board 20 can be formed by connecting a plurality of plate bodies 21 and connected, various operations such as the inspection can be performed without having to remove the ceiling panel P.

    Furthermore, according to the ceiling foundation structure 10 of the present embodiment, the plate body 21 includes an elongated substrate 21a, a pair of leg plates 21b protruding from both side edges of the substrate 21a, and side edges of the leg plates 21b. The flange portion is a lip plate (locking piece) 21c that is locked to a locking portion formed on the upper surface of the holding metal. Since the walking board 20 laid over the plurality of field receivers 13 is supported very stably with respect to the holding metal fitting 16, the inspector or the operator can do anything on the walking board 20. You can walk without anxiety.

DESCRIPTION OF SYMBOLS 10 Ceiling base structure 11 Mounting bolt 12 Field edge receiving hanger 13 Field edge receiving 14 Field edge 16 Holding bracket 16a Top plate 16c Groove part 17 Locking part 19 Slit (locking groove)
20 walking board 21 plate body 21c lip board (locking piece)
22 Joint part

Claims (5)

A ceiling foundation structure comprising a mounting bolt attached to a building ceiling of a building structure, a field edge supported by a hanger attached to the installation bolt, and a field edge connected to the field edge receiver In the body,
A plurality of holding metal fittings attached to each of the field edge crossers that cross the planned formation place of the walking path on the ceiling foundation structure, and a joint portion at one end portion, and the joint portion is fitted to the other end portion. When a walking board composed of a plurality of elongated plates that can be connected to each other, a locking piece provided on each of the plates, and the walking board is placed on top of the holding bracket to be a passage, It is comprised from the latching | locking part provided in each upper surface of the said holding metal fitting engaged with each said latching piece,
The locking piece of each plate body and the locking portion provided on the upper surface of the holding fitting make the plate body movable in the length direction and lock in the width direction and the upward direction. ,
In the state where the walking plate is engaged with the engaging pieces of the plate members, the joint portion of the one end portion is connected to the other end portion of the next plate body. A ceiling foundation structure characterized in that the ceiling base structure is installed on the field edge receiver at a place where the walking path is to be formed by sequentially fitting and extending the joint.   The ceiling base structure according to claim 1, wherein the holding metal fitting has an inverted U-shaped cross section, and is mounted from an upper portion of the field edge receiver so as to relatively fit the field edge receiver in a groove portion thereof.   The ceiling foundation structure according to claim 1 or 2, wherein the locking portion is configured by an engaging groove formed in a length direction of the field receiver on an upper surface of the holding metal fitting.   The plate body is composed of an elongated substrate, a pair of leg plates projecting from both side edge portions of the substrate, and a flange portion projecting in a direction opposite to the lower end edge opposite to the side edge portion of the leg plates. The ceiling foundation structure according to any one of claims 1 to 3, wherein the flange portion is a locking piece that is locked to the locking portion formed on an upper surface of the holding metal fitting. The joint portion provided at the one end of each plate is attached to the inner surface of the base plate and the both leg plates of the plate, and protrudes outward in the length direction from the one end of the plate. The ceiling foundation structure according to any one of claims 1 to 4, comprising a U-shaped joint, and the U-shaped joint is fitted to the other end of the plate to be added to form the walking board.

Images