JP6397561B2 - Ceiling hanging bolt and ceiling material mounting device - Google Patents

Description

  The present invention relates to a ceiling suspension bolt and a ceiling material attachment device used when a ceiling material is attached to the back side of a roof or the back side of an upper floor.

  In the case of a steel structure, reinforced concrete structure, or steel reinforced concrete structure building, the ceiling material 100 is attached in a state of being suspended by a suspension bolt 104 on the back side of the floor 102 on the upper floor, as shown in FIGS. 5 and 6, for example. It has been. That is, the first connecting member 106 made of an insert metal fitting or a nut anchor is installed on the back side of the floor 102 of the upper floor, the suspension bolt 104 is attached to the female screw of the first connecting member 106 downward, and the lower end of the suspension bolt 104 In addition, a number of field edges and field edge receivers (hereinafter referred to as “field edges”) 110 are horizontally attached in a lattice shape via the second connector 108, and the ceiling material 100 is horizontally attached to the field edges 110. (See Patent Document 1).

  However, when the suspension bolt 104 is attached to the back side of the inclined roof 112, if the suspension bolt 104 is attached to the female screw of the first connector 106 installed on the back side of the roof 112, the suspension bolt 104 is attached to the ceiling material 100. The ceiling member 100 that is inclined and attached to the lower end of the suspension bolt 104 is pulled obliquely upward, and the ceiling member 100, the first connector 106, the second connector 108, and the suspension bolt 104 are also inclined. Pulled into an unstable state.

  For this reason, it is necessary to pull the ceiling material 100 in the opposite direction to cancel the force in the oblique direction and to eliminate this unstable state. However, if it does so, the structure which suspends the ceiling material 100 will become complicated. Therefore, as shown in FIG. 7, the suspension bolt 104 attached to the back side of the roof 112 is forcibly bent at the curved portion 114, the suspension bolt 104 is directed downward, and the ceiling material 100 is pulled upward only. And so on.

  However, the suspension bolt 104 is attached to the back side of the floor 102 on the upper floor and the back side of the roof 112, and the operation of forcibly bending the suspension bolt 104 directly downward is the back side of the floor 102 or the roof of the upper floor. The operator has to do it manually at a high place with a poor footing such as the back side of 112, which is very dangerous, and this work reduces the strength of the suspension bolt 104, the first connector 106, and the second connector 108. There is a risk of inviting.

  In addition, as shown in FIG. 8, when a duct or the like 116 is disposed on the back side of the upper floor, the suspension bolt 104 is provided from obliquely upward to obliquely downward so as to avoid the duct or the like 116. The ceiling material 100 can only be suspended from the suspension bolt 104 in this state. However, in this case, as in the case of the above-described example, the work is performed at a high place, which is very dangerous, and the strength of the suspension bolt 104, the first connector 106, and the second connector 108 is increased by this operation. There is a risk of degrading.

  The ceiling material 100 is suspended on the back side of the floor 102 on the upper floor and the back side of the roof 112 by the suspension bolts 104 as described above. The suspension bolts 104 have a considerable strength against bending. In addition, since there are many suspension bolts 104 for suspending the ceiling material 100, the ceiling material 100 is close to being integrated with the floor 102 and the roof 112 of the upper floor. Following the movement of the floor 102 and the roof 112 on the floor, they swing together, and in the event of a strong earthquake, the ceiling material 100 is swung by the swing of the floor 102 and the roof 112 on the upper floor, and the ceiling material 100 is moved to the upper end of the suspension bolt 104. There is a risk of falling off from the bottom and bottom.

Japanese Patent No. 4215165 JP 2006-328752 A Japanese Patent Laid-Open No. 9-177229 JP 2003-120617 A Japanese Utility Model Publication No. 60-28104

  The problem to be solved by the present invention is to improve the workability of the ceiling suspension bolt that suspends the ceiling material on the back side of the roof or the floor of the upper floor, and to be installed on the back side of the roof or the floor of the upper floor. The point is to improve the earthquake resistance of the ceiling.

  The present invention comprises a connecting body comprising a streak made of a rod-shaped material and one or more universal joints provided at or near the end of the streak, and one of the connecting bodies. The end portion is provided with a first connecting portion for connecting with a first connecting tool provided on the back side of the roof or on the back side of the upper floor, and the other end portion of the connecting body is provided with the roof or the top. The ceiling suspension bolt is characterized in that a second connecting portion for connecting to a second connecting tool provided on a ceiling member attached to the back side of the floor of the floor is provided.

  And it is a ceiling material attachment apparatus comprised by this suspension bolt (connector) for ceiling, this 1st connector, and this 2nd connector.

  Since the present invention is configured as described above, the roof or the upper floor and the ceiling form a flexible structure, and in the event of an earthquake, the roof or the upper floor and the ceiling move separately, The ceiling is not swung by the shaking of the roof or the upper floor, and as a result, the earthquake resistance of the ceiling is improved.

  In addition, since the present invention is configured as described above, when the ceiling material is attached to the back side of the roof or the upper floor, the ceiling suspension bolt cannot be attached in the vertical direction due to a gradient or other reasons. Even in this case, it is not necessary for the operator to bend the ceiling suspension bolts and the like, and the ceiling suspension bolts can be easily installed. As a result, the workability of the ceiling material is improved.

  In addition, since the present invention is configured as described above, the operator does not have to perform a dangerous work of manually bending ceiling suspension bolts or the like at a high place. Becomes safe.

  Further, since the present invention is configured as described above, the ceiling suspension bolt can be freely bent at the universal joint, so that a load as in the case of rigid coupling is not applied to the connection tool and the connection part. In addition, the connecting portion is less likely to be damaged, and an accident such as breakage or dropping is less likely to occur during an earthquake.

  In addition, since the present invention is configured as described above, ceiling suspension bolts can be connected to existing suspension fittings and “screw holes” drilled in existing floor slabs, so that the present invention is not limited to new inclined roofs and the like. It can correspond to the existing roof or the ceiling behind the existing floor.

  In addition, since the present invention is configured as described above, the brace member for the earthquake-resistant ceiling (diagonal reinforcing material, steady rest) can usually be installed only at the position of the suspension bolt. It is also possible to attach directly to any position on the back side of the floor.

FIG. 1 is an explanatory view showing a ceiling material mounting device according to a first embodiment of the present invention. FIG. 2 is an enlarged explanatory view of the main part of the first embodiment of the present invention. FIG. 3 is an explanatory view of a ceiling material mounting apparatus according to the second embodiment. FIG. 4 is an explanatory diagram of a ceiling material mounting device according to a third embodiment. FIG. 5 is an explanatory view showing a conventional ceiling suspension structure. FIG. 6 is an enlarged view of a main part of a conventional ceiling suspension structure. FIG. 7 is an explanatory diagram showing a state in which a ceiling suspension bolt attached to the back of an inclined roof is vertically bent and the ceiling is suspended. FIG. 8 is an explanatory view showing a state in which the ceiling suspension bolt is attached avoiding a duct or the like.

  The purpose of improving the workability of the ceiling suspension bolts and improving the earthquake resistance of the ceiling has been achieved with the minimum components and without impairing the functions of the ceiling suspension bolts.

  FIG. 1 is an explanatory view showing a ceiling material mounting apparatus according to the first embodiment of the present invention, and FIG. 2 is an enlarged explanatory view of the main part of the first embodiment of the present invention. The ceiling material mounting device is configured by a ceiling suspension bolt (connector) 10, a first connector 32, and a second connector 36. Further, in these drawings, reference numeral 10 denotes a ceiling suspension bolt according to the present invention. The ceiling suspension bolt 10 is composed of a reinforcing bar 12 made of a rod-like metal material and one end of the reinforcing bar 12 (the upper end of FIG. 2). And a universal joint 14 connected to the portion).

  An intermediate connecting portion 16 is formed at one end portion (the upper end portion in FIG. 2) of the reinforcing material 12. The intermediate connecting part 16 forms a male screw. The universal joint 14 includes a substantially spherical body 18 and a surrounding body 20 that surrounds the substantially spherical body 18 so as to be slidable and rotatable.

  There is a portion not surrounded by the surrounding body 20 on one side of the substantially spherical body 18 (the lower side in FIG. 2). A connection hole 22 is formed in this portion, and a female screw is formed inside the connection hole 22. Is formed. The intermediate connecting portion 16 of the reinforcing material 12 is screwed and connected to the connecting hole 22. A first connecting portion 24 is provided on the back portion of the enclosure 20 (upper portion in FIG. 2). The 1st connection part 24 consists of a rod-shaped metal material, and the external thread is formed in the front-end | tip part at least.

  Reference numeral 26 denotes an upper floor, and the upper floor 26 is formed by placing concrete 30 on a deck plate 28. The upper floor 26 is provided horizontally. On the back side of the floor 26 on the upper floor, a first connector 32 penetrates the deck plate 28 and is embedded and installed in the concrete 30. A nut anchor is used as the first connector 32. The first connecting portion 24 at the back of the universal joint 14 is screwed and connected to the female screw at the center of the first connecting tool 32.

  A second connecting portion 34 is formed at the other end of the reinforcing bar 12. The 2nd connection part 34 consists of external threads. A number of field edges 38 are horizontally attached to the second connection part 34 via a second connector 36, and a ceiling material 40 is horizontally attached to the field edges 38. A ceiling 42 is formed by the ceiling material 40.

  FIG. 3 is an explanatory view of a ceiling material mounting apparatus according to the second embodiment of the present invention. In this example, the upper floor is composed of a roof 44 having a slope, and the first connector 32 made of a nut anchor is embedded and installed at a right angle on the back side of the roof 44, and the universal joint 14 is attached to the first connector 32. The first connecting portion 24 at the back of the screw is screwed and connected. The ceiling suspension bolt 10 is bent at the universal joint 14, and the struts 12 hang vertically.

  FIG. 4 is an explanatory view of a ceiling material mounting apparatus according to a third embodiment of the present invention. In this example, the upper floor is a roof 46 having a slope, and the roof 46 is formed by placing concrete 30 on a deck plate 28. This example is different from the second embodiment in that a hanger fitting (a fitting using two plate-like horizontal members) is used as the first connector 32.

  The first connector 32 made of a hanger fitting is attached to the deck plate 28 in a state of being fitted inside the groove on the back side of the deck plate 28. A female screw is formed at the center of the first connector 32, and the first connector 24 of the universal joint 14 is screwed and connected to the female screw. Also in this example, the suspension bolt 10 for the ceiling is bent at the universal joint 14, and the reinforcing material 12 hangs vertically.

  In addition, although the 1st connection part 24 of the universal joint 14 is not illustrated, you may use the long rod material (long screw) with a thread part. Moreover, although not shown, the universal joint 14 may be connected more than two in series to improve the free performance.

  Next, the construction method of the ceiling material mounting apparatus according to the present invention will be described.

  First, in the case of the first embodiment, the construction method for the floor 26 on the upper floor is that a hole is drilled in advance at a predetermined position of the valley portion of the deck plate 28, and the first connector 32 (insert) is provided there. Insert and strike with a hammer or the like to securely fix the insert to the deck plate 28. Then, the first connector 32 is formed by placing and curing the concrete 30 to be integrated (see FIG. 5 of Patent Document 1).

  Alternatively, a hole is made after the construction of the upper floor 26, and the first connector 32 serving as a nut anchor is driven into the hole and installed.

  In the case of the second embodiment, the first connector 32 is attached in advance where the back side of the roof 44 or the upper surface of the floor 26 is horizontal but the lower surface is inclined, or the back side of the roof 44 or the floor 26 is installed after construction or construction. A hole is made in the lower surface of the first, and the first connector 32 (nut anchor: see FIG. 2 of Patent Document 3) is driven and installed in the hole.

  In the case of the third embodiment, the first connector 32 made of a hanger fitting is fitted into the groove of the deck plate 28 on the back side of the roof 46 so as to be fitted.

  Next, in the case of the first embodiment and the second embodiment, one end of the suspension bolt 10 for the ceiling, that is, the universal, is attached to the first connector 32 installed on the back side of the upper floor 26 or the roof 44, 46. The first connecting portion 24 of the joint 14 is screwed to connect the first connecting portion 24 to the first connecting tool 32.

  In the case of the third embodiment, after the front end portion of the first connecting portion 24 comes into contact with the bottom of the deck plate 28, the first connecting portion 24 is further screwed to pull the first connecting portion 32 to spread, Both ends of one connector 32 are firmly fixed to the bottom of the deck plate 28 by being pushed inside the shaped groove.

  Next, a number of field edges 38 are horizontally attached to the other end of the ceiling suspension bolt 10, that is, the second connection part 34 via the second connector 36, and the ceiling material is attached to the field edges 38. 40 is mounted horizontally to form a ceiling 42.

  Here, the ceiling suspension bolt 10 bends at the universal joint 14 and the strut 12 hangs vertically. Therefore, even if the floor 26 or the roofs 44 and 46 on the upper floor are inclined, the operator can lift the ceiling suspension bolt 10. There is no need to bend it manually.

  Next, the movement of the ceiling attached by the ceiling material attaching device according to the present invention during an earthquake will be described.

  The floor 26 or the roofs 44 and 46 on the upper floor and the ceiling 42 are connected by the ceiling suspension bolt 10 via the universal joint 14, but the ceiling suspension bolt 10 can be freely bent at the universal joint 14. Therefore, the floor 26 or the roofs 44 and 46 on the upper floor and the ceiling 42 can swing independently of each other in the horizontal direction.

  When the upper floor 26 or the roofs 44 and 46 are strongly shaken in the lateral direction at the time of the earthquake, the ceiling 42 is not easily swung by the strong vibrations of the upper floor 26 or the roofs 44 and 46, The two couplers 36 are less likely to be damaged, and the earthquake resistance of the ceiling 42 is increased. Therefore, it is difficult for the ceiling 42 to fall during an earthquake.

  That is, as in Patent Documents 2 to 5, it is an effective structure that reduces the possibility that the suspension bolt 10 breaks and falls off flexibly following not only one-way swing but also all-way swing.

10 Ceiling suspension bolt (connector)
DESCRIPTION OF SYMBOLS 12 Reinforcement material 14 Universal joint 16 Intermediate connection part 18 Substantially spherical body 20 Enclosure body 22 Connection hole 24 First connection part 26 Upper floor 28 Deck plate 30 Concrete 32 First connection tool 34 Second connection part 36 Second connection tool 38 Field edge 40 Ceiling material 42 Ceiling 44, 46 Roof

Claims (4)

  A first connecting member provided on a back side of a roof or a back side of a floor of an upper floor, comprising: a reinforcing bar made of a rod-like material; and a pair of universal joints provided on the reinforcing material. The other one of the universal joints is connected to a second connector provided on a ceiling member attached to the back side of the roof or the back side of the floor of the upper floor. Two joints, wherein one of the universal joints is provided at one end of the reinforcement, and the other one of the universal joints is provided at the other end of the reinforcement. Hanging bolt for ceiling.   The ceiling suspension bolt according to claim 1, wherein the universal joint includes a substantially spherical body and a surrounding body that surrounds the substantially spherical body so as to be slidable and rotatable.   A first connector attached to the back side of the roof or the upper floor, a ceiling hanging bolt for hanging a ceiling material attached to the back side of the roof or the upper floor, and a second connection attached to the ceiling material The ceiling suspension bolt includes a bar material made of a rod-like material and a pair of universal joints provided at ends of the bar material, one of the universal joints being the first A first connecting portion for connecting to the connecting tool, and another one of the universal joints includes a second connecting portion for connecting to the second connecting tool, and one of the universal joints includes the muscle A ceiling material mounting device, wherein the ceiling material mounting device is provided at one end of the material, and the other one of the universal joints is provided at the other end of the reinforcing material.   The ceiling material mounting apparatus according to claim 3, wherein the universal joint includes a substantially spherical body and a surrounding body that surrounds the substantially spherical body so as to be slidable and rotatable.

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