JP2008025271A - Ceiling joist receiver mounting structure of hanger - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a ceiling joist receiver mounting structure of a hanger on a ceiling substrate of a building, which can exert sufficient holding and fixing strength even against rolling vibration of an earthquake etc. <P>SOLUTION: The ceiling joist receiver mounting structure of the hanger has the hanger 4 which is hung from a ceiling of the building, and has a ceiling joist receiving portion 32 having a U-shaped cross section, at a lower portion thereof; the ceiling joist receiver 6 which is held by the ceiling joist receiving portion 32; and a hanger fixture 12 which has pinching pieces 24, 24 thereof fitted onto the ceiling joist receiving portion 32 for holding the ceiling joist receiver 6, in a manner pinching both upper portions of the ceiling joist receiving portion 32 from outside, and has a fixing bolt 20 thereof fastening both ends of the pinching pieces 24, 24 and clamping the ceiling joist receiving portion 32, to thereby rigidly pinch the ceiling joist receiver 6. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a structure for mounting a hanger on a ceiling under a ceiling of a building.

  Conventionally, Patent Document 1 discloses an invention related to a mounting structure for a field edge receiver. As shown in FIG. 6, the mounting structure for the field edge receiver is such that the field edge receiver 60 is attached to the holding portion 64 of the field edge receiving hanger 62, and the back surface of the hanging piece 66 of the field edge receiving hanger 62 and The horizontal piece 68 is connected and fixed by a field edge receiving fixture 70. According to the present invention, since the load is supported by the fixing tool 70 even when a load is applied to the field edge receiver 60, the field edge receiver 60 does not fall down, and the fixing tool 70 can be mounted with one touch, and is excellent in workability and reliability. That's it.

  Further, Patent Document 2 describes a hanging metal fitting in which a girder material is hooked and fixed to a hanging metal fitting body using a fixing metal fitting. This hanging bracket can be used to suspend the girders without drilling bolt holes in the girders for suspending the girders, and it is easy to work because no tightening tools are required for use. Is.

  According to the invention of the hanger for the ceiling edge receiving / hanging device described in Patent Document 3, the notch groove is formed in the upper end of the outer wall portion of the receiving portion, while the spread preventing piece formed in the main body portion is caused to the front side. Thus, the work can be easily and easily performed by being configured to be engaged with the notch groove.

JP-A-8-13682 Japanese Utility Model Publication No. 41-24061 JP-A-7-207809

  Since the invention described in Patent Document 1 has a structure in which the fixing tool 70 is engaged with the holding portion 64 of the hanger 62, the fixing tool 70 is deformed by strong vibration such as an earthquake and the locking portion is loosened. Alternatively, there is a concern that the fixture 70 may be detached, and in some cases, there is a problem that the field receiver 60 may be detached from the hanger 62 and the ceiling may fall. The mounting structures described in Patent Documents 2 and 3 also have the same problem as that of Patent Document 1 because the fixing bracket and the spread preventing piece are mounted by engagement.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a hanger field edge mounting structure capable of ensuring sufficient holding and fixing strength against shaking vibration caused by an earthquake or the like.

  In order to solve the above technical problem, the hanger nose receiving attachment structure according to the present invention is suspended from the ceiling of a building as shown in FIG. The hanger 4 provided with the hanger 4, the field edge receiver 6 held by the field edge receiver 32, and both the clamping pieces 24 in a state where both upper portions of the field edge receiver 32 holding the field edge receiver 6 are sandwiched from the outside. , 24, and the hanger fixture 12 that clamps and fixes the field receiver 6 by fastening the field edge receiving part 32 by fastening the ends of the clamping pieces 24, 24 with the fixing bolt 20. is there.

  In the hanger edge mounting structure according to the present invention, the hanger fixture 12 has two holding pieces 24, 24 formed in parallel from both sides of the base, and the ends of both holding pieces are bent obliquely upward. Thus, the fastening portions 26 and 26 of the fixing bolt 20 are formed.

  In the hanger edge mounting structure according to the present invention, the fastening portions 26 are formed in a flat plate shape, and one of the fastening portions 26 has a hole 28 through which the shaft of the fixing bolt 20 is inserted. The other fastening part 26 is provided with a screw hole 30 into which the shaft of the fixing bolt 20 is screwed.

  According to the field hanger mounting structure of the hanger according to the present invention, the hanger provided with the field edge receiving part, the field edge held by the field edge receiving part, and the state of sandwiching both upper portions of the field edge receiving part from the outside The hanger fixture is used to insert both the clamping pieces, tighten the edge portions of the clamping pieces with fixing bolts, tighten the field edge receiving portion, and hold and fix the field edge receiving device. The field guard can be held and fixed firmly and reliably, so that the field guard will not be detached from the hanger due to vibrations or vibrations such as earthquakes, and it can be seismically reinforced, and it is easy to install the hanger fixture and install it easily. There is an effect that can be done. In addition, the existing ceiling foundation structure can be easily seismically reinforced by attaching a hanger fixture.

  According to the hanger edge mounting structure according to the present invention, since the end portions of the holding pieces of the hanger fixture are formed with fastening portions that are bent obliquely upward, a tool is used when fastening the fixing bolt. However, there is an effect that it is easy to operate and the presser plate portion can be properly tightened.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows the mounting structure of the base member on the ceiling. The base member mounting structure includes a hanger 4 suspended from a ceiling slab via a suspension bolt 2, a field receiver 6 mounted horizontally on the hanger 4, and the field receiver 6 arranged in an orthogonal direction. The configuration includes a field edge 8, a clip 10 for attaching the field edge 8 to the field edge receiver 6, and a ceiling board 9. Furthermore, the field edge mounting structure of the hanger 4 is a structure in which a hanger fixture 12 for holding the field edge holder 6 is fixed to the hanger 4.

  As shown in FIG. 2, the hanger fixture 12 has a generally U-shaped sandwiching portion 14 and a fixing bolt 20 including a head portion 16 and a shaft portion 18 in which a screw is engraved. The clamping part 14 has a circular cross section excluding the end part, and two clamping pieces 24, 24 are provided in the same direction and in parallel from both sides of the base part 22, and the vicinity of the end part of each clamping piece 24, 24 is Flat plate-like fastening portions 26, 26 that are bent obliquely upward and have a surface perpendicular to the axis of the fixing bolt are formed at the end portions of the respective clamping pieces.

  A hole 28 through which the shaft 18 of the fixing bolt 20 is inserted is provided at the end of the one fastening portion 26, and the shaft 18 of the fixing bolt 20 is provided at the end of the other fastening portion 26. A screw hole 30 is provided for screwing.

  As shown in FIG. 3, the hanger 4 is formed with a horizontally bent mounting portion 36 at the upper end portion of the vertical substrate portion 34, and a field edge in a direction opposite to the mounting portion 36 at the lower portion of the substrate portion 34. The receiving portion 32 is bent. The edge receiving portion 32 includes a rear plate portion 35 extending from the substrate portion 34, a receiving plate portion 37 bent in a horizontal direction from the lower end of the rear plate portion 35, and a pressing plate portion 38 further upward. It is a bent U-shaped cross section.

  A bending locking piece 39 is formed on the upper portion of the pressing plate portion 38. The bending locking piece 39 is partially bulged toward the rear plate portion 35 and the end portion is bent forward. Further, a bent locking portion 40 bulging toward the presser plate portion 38 is formed at a position facing the bending locking piece 39 between the substrate portion 34 and the upper portion of the rear plate portion 35.

  The suspension bolt 2 has a rod-like shape, and a screw is engraved on the whole. One end of the suspension bolt 2 is screwed to an insert embedded in the ceiling slab. Further, the lower end portion of the suspension bolt 2 is inserted into the insertion hole 42 provided in the center of the attachment portion 36 of the hanger 4, and nuts 44 are respectively screwed from the upper and lower portions of the attachment portion 36 to attach the attachment portion to the suspension bolt 2. 36 is fixed.

  The field edge receiver 6 is a long channel-shaped (C-shaped cross-section) material having an upper surface portion 50, a side surface portion 52, and a lower surface portion 54, and is made of a steel plate or a stainless steel plate. The field edge 8 is a long material having a substantially channel shape, and has a bottom portion 56 and left and right side portions 58 and 58 rising from both side ends of the bottom portion 56. Each of them is formed in a state in which bent portions that are bent in a hook shape from the inward to the lower side face each other. As the material of the field edge 8, a steel material or a lightweight metal is used.

  At the time of construction, as shown in FIG. 1, the field edge receiver 6 is held by the field edge receiving part 32 of the hanger 4 suspended from the building ceiling via the suspension bolt 2. In the hanger 4, the upper portion of the field edge receiver 6 is locked by the bending locking portion 40 of the base plate portion 34 and the bending locking piece 39 of the presser plate portion 38 in a state where the field edge receiving portion 6 is supported by the receiving plate portion 37. In addition, the field edge receiver 6 is pressed and held by the spring force of the presser plate portion 38. In this way, the field receiver 6 is locked and held on the hanger 4 at a predetermined interval.

  For this reason, the field edge receiver 6 is held and engaged with a certain holding force by the field edge receiving part 32 of the hanger 4 under a normal environment. However, when vibration due to an earthquake or the like occurs, a slip occurs between the hanger 4 and the field edge receiver 6 due to the shaking of the ceiling, and the presser plate part 38 of the field edge reception part 32 is deformed and opens. For this reason, there is a possibility that the field edge receiving portion 32 is loosened or the field edge receiver 6 is detached from the hanger 4.

  In order to perform the seismic reinforcement of the hanger 4 as described above, in this embodiment, the hanger fixture 6 is used to fix the field receiver 6. FIG. 4 shows a state in the middle of attaching the hanger fixture 12. At this time, the sandwiching pieces 24 and 24 of the U-shaped sandwiching portion 14 of the hanger fixture 12 are inserted by being slid in a state of sandwiching the bending locking portion 40 and the bending locking piece 39 of the hanger 4 from the outside. Then, by the hanger fixture 12, the bending locking portion 40 of the hanger 4 that holds and holds the upper portion of the field edge receiver 6 and the bending locking piece 39 of the presser plate portion 38 are clamped by both clamping pieces 24.

  Further, as shown in FIG. 5, the fastening portions 26, 26 provided at the end portions of the sandwiching pieces 24, 24 are fastened with the fixing bolts 20, and the presser plate portion 38 is fastened to clamp the field receiver 6. . At this time, the fastening portions 26, 26 are formed to be bent obliquely upward and have a flat plate shape orthogonal to the axis of the fixing bolt 20, so that the tool is easy to operate and the presser plate portion 38 is properly tightened. Yes. By this hanger fixing tool 12, the field edge receiver 6 held by the field edge receiving part 32 of the hanger 4 is completely surrounded and fixed from all sides, so that the field edge receiver 6 is attached to the hanger 4 by vibrations such as an earthquake. Seismic reinforcement can be performed so as not to deviate from vertical and horizontal movements.

  The field receiver 6 is held and fixed one after another by the hanger 4, and the field receiver 6 is disposed in parallel and horizontally at a predetermined interval. Then, the field edge 8 is arranged in a direction orthogonal to each field edge receiver 6, and the field edge 8 is supported and fixed at a position intersecting with the field edge receiver 6 using the clip 10. The clip 10 has both locking pieces inserted into the channel groove of the field edge 8, and the clip is turned to lock each locking piece to the bent part of the field edge 8, and the claw piece part is bent to assemble the clip 10 Secure to the field guard 6. After arranging the field edge 8, the ceiling board 9 is attached to the field edge 8 to finish the ceiling.

Next, construction of seismic reinforcement in the existing ceiling foundation structure will be described.
In this case, an existing ceiling base structure in which a field edge receiver 6 similar to the above is held and locked to a hanger 4 similar to the above is seismically reinforced. Also in this case, the field edge receiver 6 is pressed by the holding plate portion 38 of the hanger 4 and sandwiched and locked by the bending locking portion 40 and the bending locking piece 39, and the hanger fixing tool is newly added thereto. 12 is attached.

  In this case as well, the clamping pieces 24 and 24 of the U-shaped clamping part 14 of the hanger fixture 12 are connected to the bending locking part 40 and the bending locking piece 39 of the presser plate part 38 from the outside. Insert with pinching. And the fastening parts 26 and 26 provided in the edge part of each clamping piece 24 and 24 are fastened with the fixing volt | bolt 20, the clamp board part 38 is clamped, and the field receiver 6 is clamped and fixed. By attaching the hanger fixture 12, the edge receiver 6 held by the hanger 4 is firmly fixed, and seismic reinforcement can be performed so that it does not come off due to vibration such as an earthquake. In this case, there is no drilling or screwing in the hanger 4, and the mounting structure of the hanger fixture 12 to the hanger 4 is simple and workability is good.

  Therefore, according to the above-described hanger mounting structure for the hanger, the hanger can be firmly and securely held and fixed, so that the hanger will not come off the hanger due to shaking or vibration such as an earthquake. Reinforcement can be performed, and hanger fixtures can be easily installed and installed easily. In addition, the existing ceiling foundation structure using the hanger can be easily seismically strengthened by attaching a hanger fixture.

It is a perspective view of the field edge receiving attachment structure of the hanger which concerns on embodiment of this invention. It is a figure which shows the hanger fixing tool which concerns on embodiment. It is a perspective view of the hanger which concerns on embodiment. It is a perspective view which shows the state in the middle of attaching a hanger fixing tool to a hanger according to embodiment. It is a perspective view which shows the state which concerns on embodiment and attached the hanger fixture to the hanger. It is a perspective view which shows the attachment structure of the field edge receiver concerning a prior art example.

Explanation of symbols

4 Hanger 6 Field edge receiver 8 Field edge 12 Hanger fixture 20 Fixing bolt 24 Nipping piece 26 Fastening part 32 Field edge receiver

Claims (3)

A hanger that is suspended from the ceiling of the building and has a U-shaped cross-section receiving portion at the bottom,
A field receiver held by the field receiver,
Insert both clamping pieces in a state where both upper parts of the field receiving part holding the field receiving part are sandwiched from the outside, and fasten the field receiving part by fastening the ends of the holding pieces with fixing bolts. A hanger rim receiving attachment structure comprising a hanger fixture for holding and fixing a receiver.   The hanger fixture is characterized in that two holding pieces are formed in parallel from both sides of the base portion, and ends of both holding pieces are bent obliquely upward to form fastening portions of the fixing bolts. 2. A hanger mounting structure for a hanger according to claim 1.   The fastening portion is formed in a flat plate shape, and one of the fastening portions is provided with a hole through which the shaft of the fixing bolt is inserted, and the shaft of the fixing bolt is screwed into the other fastening portion. 3. The hanger field edge mounting structure according to claim 2, wherein a screw hole is provided.

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