JP6135912B2 - Ceiling foundation hardware and ceiling structure - Google Patents

Description

  The present invention relates to a ceiling base metal and a ceiling structure. More specifically, the present invention relates to a heavy ceiling with high sound insulation performance required in, for example, a cinema and a theater.

  Cinema (movie theaters), theaters, etc. demand high sound insulation performance, so a heavy ceiling was required, and the previous Great East Japan Earthquake suffered much damage. In the prior art prior to the earthquake disaster, a hanger was attached to the lower end of the suspension bolt attached to the beam (or slab), a field edge receiver was attached to the hanger, a field edge was attached to the field edge receiver, and a ceiling board was screwed to the field edge. The ceiling was formed by fastening.

  If the suspension bolts are long, the width of shaking of the ceiling materials (such as the edge holder, the edge, and the ceiling board) due to the earthquake will increase. For this reason, after the earthquake, a steel frame called a grape shelf is provided, and the ceiling is constructed with as short a suspension bolt as possible. In this case, C-type steel is attached to the vine shelf framework, the upper end of a relatively short suspension bolt is connected to the C-type steel, a hanger is attached to the lower end of the suspension bolt, and the ceiling material is attached via this hanger.

  It has been found that since a male screw is engraved over the entire suspension bolt as the level adjusting member, metal fatigue is likely to occur due to repeated deformation due to, for example, an earthquake, and it is easy to break. Therefore, it is conceivable to improve the earthquake resistance of the ceiling by a method of directly attaching the ceiling material to the grape shelf frame without interposing a suspension bolt. However, it is difficult to secure the steel frame accuracy of the vine shelf frame required for the required surface accuracy of the ceiling surface, and the ceiling is still configured using suspension bolts.

  The present invention has been made in view of the above-described problems, and an object thereof is to provide a ceiling base metal fitting and a ceiling structure capable of improving the earthquake resistance of a ceiling without using a suspension bolt.

In order to solve the above problems, in the first embodiment of the present invention, a ceiling base metal fitting for connecting the ceiling horizontal member and the ceiling member attached to the horizontal structural member,
An attachment portion attached to a side surface of the horizontal member for ceiling;
An upward extending portion that extends upward from the mounting portion and covers the upper surface of the horizontal member for ceiling;
An engaging portion that extends downward from the mounting portion and engages the ceiling material ;
There is provided a ceiling base metal fitting, comprising: a level adjusting unit that adjusts a relative position along a vertical direction of the mounting portion with respect to the ceiling horizontal member .

In the second form of the present invention, the ceiling base metal fitting of the first form,
A ceiling horizontal member to which the mounting portion of the ceiling base metal fitting is attached;
There is provided a ceiling structure comprising a ceiling material that engages with the engaging portion of the base metal for ceiling.

  The base metal fitting for ceiling according to the present invention includes a ceiling horizontal member attached to a horizontal structural member constituting, for example, a grape shelf frame, and a field edge receiver constituting a part of the ceiling material, for example, with a suspension bolt interposed therebetween. Connect without any problems. As a result, in the ceiling structure provided with the base metal for ceiling according to the present invention, no suspension bolt is used, so that fatigue fracture due to an earthquake can be avoided, and as a result, the earthquake resistance of the ceiling can be improved.

It is a figure which shows roughly the structure of the ceiling structure provided with the base metal fitting for ceiling concerning embodiment of this invention. It is a side view along line AA of FIG. It is a side view along line BB of FIG. It is a figure explaining the structure and effect | action of the base metal fitting for ceilings of this embodiment.

  Embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a diagram schematically showing a configuration of a ceiling structure including a ceiling base metal fitting according to an embodiment of the present invention, and shows a cross section of the ceiling base metal hardware. 2 is a side view taken along line AA in FIG. FIG. 3 is a side view taken along line BB in FIG.

  1 to 3, the ceiling structure according to the present embodiment includes a ceiling horizontal member 1 attached to the lower surface of a horizontal structural member 11 having a form of a vine shelf-like frame (frame), and a ceiling material 2. And a ceiling base metal 3 for connecting the field receiver 2a and the horizontal member 1 for ceiling. The horizontal structural member 11 is made of, for example, a square steel pipe having a rectangular hollow cross section, and is arranged horizontally and vertically to form a vine shelf framework.

  The ceiling horizontal member 1 is made of, for example, C-shaped steel, and is attached to a connecting member 12 made of L-shaped steel that is welded in advance to a predetermined position on the lower surface of the horizontal structural member 11 by fastening means including bolts 13. The ceiling horizontal members 1 are arranged in parallel at a predetermined pitch so as to extend in a direction perpendicular to the paper surface of FIG. Various modifications are possible for the form of the frame formed by the horizontal structural member 11 and the cross-sectional shapes of the horizontal structural member 11 and the horizontal member 1 for ceiling.

  As shown in FIG. 4, the ceiling base metal 3 is attached to the side surface 1a of the horizontal member 1 for the ceiling, and extends upward from the attachment portion 3a to cover the upper surface 1b of the horizontal member 1 for the ceiling. A portion 3b and an engagement portion 3c extending downward from the attachment portion 3a and engaging with the field edge receiver 2a are provided. The attachment portion 3a has a form that comes into contact with the side surface 1a of the horizontal member 1 for ceiling. The engaging part 3c has a form in which a field edge receiver 2a made of, for example, a U-shaped steel can be stably placed.

  The upward extending portion 3b extends from the upper surface 1b of the ceiling horizontal member 1 so as to cover a part of the other side surface (the side surface opposite to the side surface 1a facing the mounting portion 3a) 1c of the ceiling horizontal member 1. And has a form that straddles the upper surface 1b of the horizontal member 1 for ceiling. The ceiling base metal 3 has a cross-sectional shape in which the center of gravity of the horizontal member 1 for ceiling and the center of gravity of the edge receiver 2a are substantially aligned in the vertical direction.

  The ceiling base metal 3 is screwed into a nut 3ba attached so as to be aligned with a through hole (not shown) formed in the upward extending portion 3b, and the tip abuts against the upper surface 1b of the ceiling horizontal member 1. It has the bolt 3d to press. When the bolt 3d is rotated, the distance along the vertical direction between the upper surface 1a of the horizontal member 1 for the ceiling and the lower surface of the upwardly extending portion 3c is changed, and consequently the vertical direction of the mounting portion 3a with respect to the horizontal member 1 for the ceiling is changed. The relative position changes.

  That is, the bolt 3d is a distance adjusting member that adjusts the distance along the vertical direction between the upper surface 1b of the horizontal member 1 for the ceiling and the lower surface of the upward extending portion 3b. In other words, the bolt 3d constitutes a level adjusting unit that adjusts the relative position along the vertical direction of the mounting portion 3a (and thus the ceiling base metal 3) with respect to the horizontal member 1 for the ceiling.

  The ceiling base metal 3 whose level is adjusted by the action of the bolt 3d is attached to the ceiling horizontal member 1 by screws 14, for example, screwed into the side surface 1a of the ceiling horizontal member 1 from the attachment portion 3a (attachment). Fixed). Further, the field edge receiver 2a placed on the engaging portion 3c of the ceiling base metal 3 is attached to the ceiling base metal 3 by a screw 15 screwed into the side surface of the field edge receiver 2a from the engaging portion 3c. ing.

  When constructing the ceiling structure according to the present embodiment, the ceiling horizontal member 1 is attached to the lower surface of the horizontal structural member 11 constituting the grape shelf framework using fastening means including bolts 13. Next, using the form of the upward extending portion 3 b that straddles the upper surface 1 b of the ceiling horizontal member 1, the ceiling base metal 3 is installed (positioned) at a predetermined position of the ceiling horizontal member 1. Then, the level of the installed ceiling base metal 3 is adjusted by the action of the bolt 3d.

  After that, the edge receiver 2a is placed on the engaging portion 3c of the ceiling base metal 3 and, if necessary, the level of the field receiver 2a is finely adjusted by the action of the bolt 3d. The ceiling horizontal member 1 is screwed, and the ceiling base metal 3 and the field receiver 2a are also screwed. Finally, according to the prior art, the field edge 2b is attached to the field edge receiver 2a, and the ceiling plate 2c is screwed to the field edge 2b.

  As described above, the ceiling base metal 3 of the present embodiment includes the ceiling horizontal member 1 attached to the horizontal structural member 11 constituting the grape shelf frame and the field edge receiver 2a constituting a part of the ceiling material 2. Are connected to each other without interposing a suspension bolt. As a result, in the ceiling structure provided with the ceiling base metal fitting 3 of the present embodiment, no suspension bolts are used, so that fatigue fracture due to an earthquake can be avoided, and consequently the earthquake resistance of the ceiling can be improved. .

  Further, since the ceiling base metal fitting 3 is provided with the level adjusting bolt 3d, the level adjustment of the ceiling base metal fitting 3 (that is, the level adjustment of the field edge receiver 2a) can be performed, and as a result the surface of the ceiling surface is high. Accuracy can be achieved. For example, as apparent from FIG. 2, the ceiling base metal 3 that connects the ceiling horizontal member 1 and the field edge receiver 2a is expected to have a bracing effect against the horizontal external force on the paper surface of FIG. The

  In addition, since the upward extending portion 3b is formed so as to straddle the upper surface 1b of the ceiling horizontal member 1, the work of installing the ceiling base metal member 3 on the ceiling horizontal member 1 and the work of screwing can be easily and stably performed. Can be done automatically. Incidentally, in the prior art using a suspension bolt, it is necessary to attach the suspension bolt to a hole of a horizontal member for ceiling made of C-type steel, for example, and the operation is relatively complicated.

  Moreover, since the engaging part 3c of the base metal fitting 3 for ceiling has the form which can mount the field receiver 2a stably, the operation | work which installs the field receiver 2a in the engaging part 3c of the base metal fitting 3 for ceiling In addition, the screwing operation can be performed easily and stably. In addition, since the upward extending portion 3b is configured to straddle the upper surface 1b of the ceiling horizontal member 1, even if the screw is damaged by an earthquake or the like, the fall of the ceiling base metal fitting 3 As a result, the ceiling can be reliably prevented from falling.

  In the above-described embodiment, the ceiling base metal 3 is adjusted to the horizontal member 1 for the ceiling after the level adjustment of the installed base metal 3 for the ceiling and the fine adjustment of the field receiver 2a as necessary. Screwed. However, the present invention is not limited to this. For example, a loose hole for a screw extending in the vertical direction is formed in the attachment portion 3a of the ceiling base metal 3 and the ceiling base metal 3 is formed by the screw 14 via the loose hole. Temporary fastening may be performed prior to level adjustment. In this case, after the level adjustment of the ceiling base metal piece 3 and the level adjustment of the field edge receiver 2a are performed in the temporarily fixed state, the screws 14 are further screwed to permanently fix the ceiling base metal piece 3 to the horizontal member 1 for the ceiling. do it.

DESCRIPTION OF SYMBOLS 1 Horizontal member for ceiling 2 Ceiling material 2a Field edge receiver 2b Field edge 2c Ceiling board 3 Base metal fitting for ceiling 3a Mounting part 3b Upward extension part 3c Engagement part 11 Horizontal structural member

Claims (8)

A ceiling base metal fitting that connects a ceiling horizontal member and a ceiling material attached to a horizontal structural member,
An attachment portion attached to a side surface of the horizontal member for ceiling;
An upward extending portion that extends upward from the mounting portion and covers the upper surface of the horizontal member for ceiling;
An engaging portion that extends downward from the mounting portion and engages the ceiling material ;
A ceiling base metal fitting, comprising: a level adjusting unit that adjusts a relative position along a vertical direction of the mounting portion with respect to the ceiling horizontal member . 2. The ceiling foundation according to claim 1, wherein the level adjusting unit includes a spacing adjusting member that adjusts a spacing along a vertical direction between an upper surface of the horizontal member for ceiling and a lower surface of the upward extending portion. hardware. The ceiling base metal fitting according to claim 2 , wherein the gap adjusting member includes a bolt screwed into the upward extending portion and having a tip abutting against an upper surface of the horizontal member for ceiling. The said upward extending part is extended from the upper surface of the said horizontal member for ceilings so that a part of other side surface of the said horizontal member for ceilings may be covered. Base metal for ceiling. 5. The base metal fitting for a ceiling according to claim 1 , wherein the engaging portion has a form in which a field receiver can be stably placed . The ceiling base metal fitting according to any one of claims 1 to 5,
A ceiling horizontal member to which the mounting portion of the ceiling base metal fitting is attached;
A ceiling structure comprising a ceiling member that engages with the engaging portion of the base metal for ceiling . The ceiling material has a field edge receiver that engages with the engaging portion of the ceiling base metal fitting, a field edge that is attached to the field edge receiver, and a ceiling plate that is attached to the field edge. The ceiling structure according to claim 6 . The ceiling structure according to claim 6 or 7 , wherein the ceiling horizontal member is attached to a lower surface of the horizontal structural member having a grape shelf-like frame shape .

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