JP2014214531A - Fall prevention tool for hanging and supporting device - Google Patents

Fall prevention tool for hanging and supporting device Download PDF

Info

Publication number
JP2014214531A
JP2014214531A JP2013094039A JP2013094039A JP2014214531A JP 2014214531 A JP2014214531 A JP 2014214531A JP 2013094039 A JP2013094039 A JP 2013094039A JP 2013094039 A JP2013094039 A JP 2013094039A JP 2014214531 A JP2014214531 A JP 2014214531A
Authority
JP
Japan
Prior art keywords
frame
suspension
suspension bolt
hole
fall prevention
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2013094039A
Other languages
Japanese (ja)
Other versions
JP6178608B2 (en
Inventor
政信 森田
Masanobu Morita
政信 森田
要 加藤
Kaname Kato
要 加藤
大輔 矢口
Daisuke Yaguchi
大輔 矢口
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tokkyokiki Corp
Original Assignee
Tokkyokiki Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tokkyokiki Corp filed Critical Tokkyokiki Corp
Priority to JP2013094039A priority Critical patent/JP6178608B2/en
Publication of JP2014214531A publication Critical patent/JP2014214531A/en
Application granted granted Critical
Publication of JP6178608B2 publication Critical patent/JP6178608B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B1/00—Devices for securing together, or preventing relative movement between, constructional elements or machine parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B41/00—Measures against loss of bolts, nuts, or pins; Measures against unauthorised operation of bolts, nuts or pins

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Vibration Prevention Devices (AREA)
  • Mechanical Engineering (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a fall prevention tool for a hanging bolt, which prevents a hanging and supporting device from falling down even when the hanging bolt is broken at its implanted base part because of an earthquake.SOLUTION: A frame 1 is comprised of: a vertical piece 2; an upper horizontal piece 3 which is provided on an upper end of the vertical piece 2, through which a hanging bolt 7 hung down from a ceiling part 10 of a building skeleton is inserted, and which is provided with a frame anchoring part 5 fixed to a base part 7a of the hanging bolt 7 screwed into the ceiling part 10; and a lower horizontal piece 4 which is provided at a lower end of the vertical piece 2 and in which a through-hole 6 for insertion of the hanging bolt 7 is formed. A falling prevention part 8 is fixed to the hanging bolt 7 in the frame 1. The outer diameter thereof is larger than the diameter of the through-hole 6 of the lower horizontal piece 4.

Description

本発明は、建築躯体の天井部から吊りボルトにて吊支される空調設備、配管或いは軽天井等の吊支装置が地震によって大きく揺れた時、吊りボルトが天井部の植え込み基部で破断した場合でも破断した吊りボルトを吊持して吊支装置が落下しないようにする吊支装置の落下防止具に関する。   The present invention is a case where a suspension bolt such as an air conditioner, a pipe or a light ceiling suspended from a ceiling part of a building frame is greatly shaken by an earthquake, and the suspension bolt breaks at an implantation base of the ceiling part. However, the present invention relates to a drop-preventing tool for a suspension support device that holds a broken suspension bolt so that the suspension support device does not fall.

天井吊下型の室内機のような空調設備や配管或いは軽天井等に用いられる吊りボルトは、従来、建築構造物の天井部に打ち込まれたアンカーにその上端の雄ネジを螺着して吊り下げられる。そして、天井近傍まで持ち上げられた空調設備等の取付金具に吊りボルトの下端の雄ネジに螺着されたナットを掛止して吊持する（非特許文献１）。   Conventionally, suspension bolts used in air-conditioning equipment such as ceiling-suspended indoor units, pipes, or light ceilings are suspended by anchoring a male screw at the upper end of an anchor driven into the ceiling of a building structure. Be lowered. Then, a nut that is screwed to the male screw at the lower end of the suspension bolt is hooked and held on a mounting bracket such as an air conditioner that is lifted to the vicinity of the ceiling (Non-patent Document 1).

このような状態で地震が発生すると、重い吊支装置は大きく揺れ、吊持している吊りボルトは振動の方向に大きく撓み、吊りボルトの天井部への捻じ込み基部に大きな繰り返し曲げモーメントが加わり、捻じ込み基部において疲労破断が生ずる虞がある。吊りボルトが破断すれば、重い吊支装置が天井から転落し、非常に危険である。   When an earthquake occurs in such a state, the heavy suspension device shakes greatly, the suspension bolts that are suspended are greatly deflected in the direction of vibration, and a large repeated bending moment is applied to the base of the suspension bolt that is screwed into the ceiling. There is a risk that fatigue fracture will occur at the screwed base. If the suspension bolt breaks, the heavy suspension device falls from the ceiling, which is very dangerous.

そこで、このような天井設備のジョイント部分の発明として特許文献１に記載のものがある。このものは、スラブ等の吊支持用ナットと吊ボルト間に介設使用して、吊ボルトの垂直と斜め吊りを自在としたジョイント金具で、帯状金属板をプレス加工によって側面開口一体のボックス状にして天壁を湾曲してその交差方向に長孔を有する金具本体と、その底壁に固定した固定ナットと、長孔の縁部に回転支持部を対接して金具本体を支持する支持ボルトを備えており、支持ボルトを吊支持用ナットに螺装し、固定ナットに吊ボルトを螺装している。金具本体は支持ボルトに回転可能であり、また金具本体と支持ボルトは長孔の範囲で相対位置可変であって、支持ボルトの吊角度を３６０度自在とすることができるようになっている。   Then, there exists a thing of patent document 1 as invention of the joint part of such a ceiling installation. This is a joint fitting that can be used between a suspension support nut such as a slab and a suspension bolt, allowing the suspension bolt to be vertically and obliquely suspended. The bracket body having a long hole in the crossing direction by bending the top wall, a fixing nut fixed to the bottom wall, and a support bolt for supporting the bracket body by contacting the rotation support portion at the edge of the long hole The support bolt is screwed to the suspension support nut, and the suspension bolt is screwed to the fixed nut. The metal fitting main body can be rotated by the support bolt, and the metal fitting main body and the support bolt can be changed in relative positions within the range of the long hole, and the suspension angle of the support bolt can be freely adjusted by 360 degrees.

この場合は、ジョイント部分にストレスが発生しないが、通常の状態でも吊支装置を揺れ動くことになり、空調設備やシステム天井など通常の状態では固定されているべきものには適用することができない。また、特許文献１に示すような落下防止具は、新設の場合には適用可能であるが、既設の場合には適用不可能であった。   In this case, no stress is generated in the joint portion, but the suspension device swings even in a normal state, and cannot be applied to a thing that should be fixed in a normal state such as an air conditioner or a system ceiling. Moreover, although the fall prevention tool as shown to patent document 1 is applicable in the case of new installation, it was not applicable in the case of existing.

かずとこ、“住宅建築専門用語辞典”、［online］、［平成２５年４月２５日検索］、インターネット〈ＵＲＬ：http://www.what-myhome.net/18tu/turiboruto.htm〉Kazutoko, “House Architectural Dictionary of Technical Terms”, [online], [Search April 25, 2013], Internet <URL: http://www.what-myhome.net/18tu/turiboruto.htm>

特開２０１１−１７３５７号公報JP 2011-17357 A

本発明はこのような状況にかんがみてなされたもので、その目的とするところは、新設の場合は勿論、既設の場合にも適用可能であって、仮に、地震によってその植え込み基部が破断したとしても、吊支装置が落下しないようにする吊支装置の落下防止具を提供するにある。   The present invention was made in view of such a situation, and the object of the present invention is applicable not only to a new installation but also to an existing installation, and it is assumed that the implantation base is broken by an earthquake. Furthermore, the present invention provides a drop prevention tool for a suspension device that prevents the suspension device from falling.

以上のような課題を解決するために請求項１に記載の吊支装置１２の落下防止具Ａは、
垂直片２と、該垂直片２の上端に設けられ、建築躯体の天井部１０から垂設された吊りボルト７が挿通され、且つ、該吊りボルト７の天井部１０への捻じ込み基部７ａに固定されるフレーム固着部５が設けられた上水平片３と、該垂直片２の下端に設けられ、吊りボルト７の挿通用の通孔６が形成された下水平片４とで構成されたフレーム１と、
フレーム１内に配設され、外径が下水平片４の通孔６より大きく、吊りボルト７に固定される脱落防止部８とで構成されることを特徴とする。 In order to solve the above problems, the fall prevention tool A of the suspension device 12 according to claim 1 is:
The vertical piece 2 and a suspension bolt 7 provided at the upper end of the vertical piece 2 and suspended from the ceiling portion 10 of the building frame are inserted, and the suspension bolt 7 is screwed into the ceiling portion 10 to the ceiling portion 7a. The upper horizontal piece 3 provided with the frame fixing part 5 to be fixed and the lower horizontal piece 4 provided at the lower end of the vertical piece 2 and having a through hole 6 for inserting the suspension bolt 7 were formed. Frame 1 and
It is arranged in the frame 1 and has an outer diameter larger than the through-hole 6 of the lower horizontal piece 4 and is constituted by a drop-off prevention part 8 fixed to the suspension bolt 7.

請求項２は、フレーム１が、１つの垂直片２の上下両端に上・下水平片３，４を設けたコ字状、または２以上の垂直片２の上下両端に上・下水平片３，４を設けた箱型であることを特徴とする。   In the second aspect, the frame 1 has a U-shape in which upper and lower horizontal pieces 3 and 4 are provided at the upper and lower ends of one vertical piece 2, or the upper and lower horizontal pieces 3 at the upper and lower ends of two or more vertical pieces 2. , 4 are provided.

請求項３は、脱落防止部８が、脱落防止用ナット８ａと、脱落防止用ナット８ａと下水平片４との間に設けられる緩衝材８ｂ或いは脱落防止用ナット８ａと緩衝材８ｂに加えて脱落防止用ナット８ａと緩衝材８ｂとの間に設けられ、下水平片４の通孔６より外径が大きいワッシャ８ｃとで構成されていることを特徴とする。   According to the third aspect of the present invention, the drop-off prevention portion 8 is added to the drop-off prevention nut 8a and the shock-absorbing nut 8a provided between the drop-off prevention nut 8a and the lower horizontal piece 4 or the drop-off prevention nut 8a and the shock-absorbing material 8b. It is characterized by comprising a washer 8c provided between the drop-off prevention nut 8a and the buffer material 8b and having an outer diameter larger than the through hole 6 of the lower horizontal piece 4.

請求項４は、既設用の吊りボルト７に適用できるもので、請求項１〜３のいずれかに記載の吊支装置の落下防止具Ａにおいて、
フレーム１は、フレーム固着部５及び通孔６を通って２分割されたフレーム半体１ａ、１ｂとで構成され、
脱落防止部８は、吊りボルト７への固着部分を通って２分割された防止部半体８ａ１、８ａ２とで構成されていることを特徴とする。 Claim 4 can be applied to the existing suspension bolt 7, and in the fall prevention tool A of the suspension support device according to any one of claims 1 to 3,
The frame 1 is composed of frame halves 1a and 1b that are divided into two through the frame fixing portion 5 and the through-hole 6,
The drop-off prevention part 8 is composed of prevention part halves 8a1 and 8a2 which are divided into two parts through a fixing part to the suspension bolt 7.

この発明によれば、落下防止具Ａは、図３，４に示すように、建築躯体の天井部１０のアンカーナット１１に捻じ込まれた吊りボルト７の捻じ込み基部７ａに取り付けて使用されるので、地震が発生し、吊支装置１２の大きな揺れに伴って大きく撓み、疲労破壊によって吊りボルト７が螺入部分７ｂの捻じ込み基部７ａで破断しても破断部分の直下に螺着されている脱落防止部８がフレーム１の下水平片４の通孔６に引っ掛かってそれ以上落下せず、吊支装置１２の転落を防止できる。   According to the present invention, as shown in FIGS. 3 and 4, the fall prevention tool A is used by being attached to the screw base 7 a of the suspension bolt 7 screwed into the anchor nut 11 of the ceiling 10 of the building frame. As a result, an earthquake occurs, and the suspension support device 12 is greatly bent as the suspension device 12 is shaken. Even if the suspension bolt 7 is broken at the screwed base portion 7a of the screwed portion 7b due to fatigue failure, it is screwed directly under the broken portion. The falling-off prevention portion 8 is caught in the through-hole 6 of the lower horizontal piece 4 of the frame 1 and does not fall any further, so that the suspension device 12 can be prevented from falling.

なお、脱落防止部８として、緩衝材８ｂを設けている場合には、吊りボルト７の揺れや破断時のショックを緩衝材８ｂにて緩和することができる。フレーム１がコ字状の場合でも、垂直片２の撓みによって上記緩和を得ることができる。従って、この場合は緩衝材８ｂを省略することができる。   In addition, when the shock absorbing material 8b is provided as the drop-off preventing portion 8, the shock of the suspension bolt 7 and the shock at the time of breakage can be mitigated by the shock absorbing material 8b. Even when the frame 1 is U-shaped, the above relaxation can be obtained by the bending of the vertical piece 2. Therefore, in this case, the cushioning material 8b can be omitted.

フレーム１や脱落防止部８を２分割しておけば、既設の吊りボルト７に簡単に装着でき、既設の吊りボルト７の破断に対して吊支装置１２の落下防止も可能となる。   If the frame 1 and the drop-off prevention part 8 are divided into two, it can be easily attached to the existing suspension bolt 7, and the suspension device 12 can be prevented from falling against the breakage of the existing suspension bolt 7.

本発明を利用した場合の施工例図である。It is a construction example figure at the time of utilizing this invention. 本発明の第１実施例の施工部分の拡大斜視図である。It is an expansion perspective view of the construction part of 1st Example of this invention. (a)は第１実施例の正面図、(b)は吊りボルトが撓んだ時の正面図、(c)は吊りボルトが断裂した時の正面図である。(a) is a front view of the first embodiment, (b) is a front view when the suspension bolt is bent, and (c) is a front view when the suspension bolt is torn. (a)は第２実施例の正面図、(b)は吊りボルトが撓んだ時の正面図、(c)は吊りボルトが断裂した時の正面図である。(a) is a front view of the second embodiment, (b) is a front view when the suspension bolt is bent, and (c) is a front view when the suspension bolt is torn. 既設吊りボルトへの装着状態を示す斜視図である。It is a perspective view which shows the mounting state to the existing suspension bolt. 図５の分解斜視図である。FIG. 6 is an exploded perspective view of FIG. 5. 図５の変形例の分解斜視図である。It is a disassembled perspective view of the modification of FIG.

以下、本発明を図面に従って説明する。図２及び図３(a)は本発明の第１実施例（吊りボルト７が新設の場合）で、これに用いられる落下防止具Ａのフレーム１は、一枚の板金を折り曲げて箱型としたもので、左右二つの垂直片２の上下両端間に上・下水平片３，４が設けられている。この場合、上水平片３は折り曲げ片が上下に重ね合わされてスポット溶接されて、強度が２倍となっている。勿論、これに限られず、角パイプを切断したようなものを用いることも可能である。そして、上水平片３には丸孔３ａが穿設され、この丸孔３ａ合致して下面六角ナットを溶接したフレーム固着部５が設けられている。前記六角ナットに代えて上水平片３に直接雌ネジを穿設し、これをフレーム固着部５としてもよい。この点は他の実施例においても共通する。   The present invention will be described below with reference to the drawings. FIGS. 2 and 3 (a) show a first embodiment of the present invention (when the suspension bolt 7 is newly provided). The frame 1 of the fall prevention device A used for this is formed by bending a sheet metal to form a box shape. The upper and lower horizontal pieces 3 and 4 are provided between the upper and lower ends of the two right and left vertical pieces 2. In this case, the upper horizontal piece 3 is spot-welded with the folded pieces superimposed one above the other, and the strength is doubled. Of course, the present invention is not limited to this, and it is also possible to use a product obtained by cutting a square pipe. The upper horizontal piece 3 is provided with a round hole 3a, and a frame fixing portion 5 is provided in which the lower hole hexagon nut is welded so as to coincide with the round hole 3a. Instead of the hexagon nut, a female screw may be directly drilled in the upper horizontal piece 3 and used as the frame fixing portion 5. This point is common to the other embodiments.

そして、下水平片４には吊りボルト７の直径より大きい通孔６が穿設されている。なお、フレーム固着部５は、上水平片３の下面に一体的に取り付けた例を示したが、別体とすることも出来る。その場合は別体のフレーム固着部５を天井部１０に向かって締め付けて行くことでフレーム１を天井部１０に固定する。この場合、丸孔３ａに雌ネジを刻設しておいてもよく、丸孔３ａによる締め付けとフレーム固着部５による締め付けがなされる。   A through hole 6 larger than the diameter of the suspension bolt 7 is formed in the lower horizontal piece 4. In addition, although the frame fixing | fixed part 5 showed the example attached integrally to the lower surface of the upper horizontal piece 3, it can also be made into a different body. In that case, the frame 1 is fixed to the ceiling portion 10 by tightening the separate frame fixing portion 5 toward the ceiling portion 10. In this case, a female screw may be engraved in the round hole 3a, and tightening by the round hole 3a and tightening by the frame fixing portion 5 are performed.

脱落防止部８は、本実施例では脱落防止用ナット８ａ、緩衝材８ｂ及びワッシャ８ｃとで構成されている。脱落防止用ナット８ａとしてはここでは通常の六角ナットが使用されている。緩衝材８ｂは、通常のゴムリングや低反発ゴムリングなどが使われ、その外径は通孔６より大きい。内径は吊りボルト７には嵌り込む大きさから、吊りボルト７の直径よりかなり大きい寸法に形成されている。ワッシャ８ｃの外径は通孔６より大きく、内径は吊りボルト７の直径よりかなり大きい寸法に形成されている。   In this embodiment, the dropout prevention unit 8 includes a dropout prevention nut 8a, a cushioning material 8b, and a washer 8c. Here, a normal hexagonal nut is used as the drop-off preventing nut 8a. As the cushioning material 8b, a normal rubber ring or a low-rebound rubber ring is used, and the outer diameter thereof is larger than that of the through hole 6. The inner diameter is formed so as to be much larger than the diameter of the suspension bolt 7 because it fits into the suspension bolt 7. The outer diameter of the washer 8 c is larger than the through hole 6, and the inner diameter is formed to be considerably larger than the diameter of the suspension bolt 7.

吊りボルト７は全長にわたって雄ネジが刻設されていてもよいし、上下両端部分の必要個所に雄ネジが刻設されているだけのものであってもよい。   The suspension bolt 7 may be engraved with a male screw over its entire length, or may only have a male screw engraved at a necessary portion of the upper and lower ends.

構造躯体の天井部１０の下面の所定箇所にはアンカーナット１１が埋設されている。   An anchor nut 11 is embedded in a predetermined location on the lower surface of the ceiling 10 of the structural frame.

しかして、フレーム１内にて緩衝材８ｂ及びワッシャ８ｃを吊りボルト７の一端部に通し、更に脱落防止用ナット８ａを螺入した状態で、その端部を上水平片３のフレーム固着部５に螺入して上水平片３から所定量だけ突き出す。続いて、吊りボルト７の下端に周知の吊下部材１３を取り付ける。そしてこの突き出し部分（この部分が螺入部分７ｂになる。）をアンカーナット１１に螺入して吊りボルト７を天井部１０に垂設する。   Then, the buffer material 8b and the washer 8c are passed through one end portion of the suspension bolt 7 in the frame 1, and the end portion of the upper horizontal piece 3 is attached to the frame fixing portion 5 in a state where the drop-off prevention nut 8a is screwed. And is protruded from the upper horizontal piece 3 by a predetermined amount. Subsequently, a well-known suspension member 13 is attached to the lower end of the suspension bolt 7. Then, this protruding portion (this portion becomes the screwed portion 7 b) is screwed into the anchor nut 11 and the suspension bolt 7 is suspended from the ceiling portion 10.

そして、吊りボルト７に螺装されているフレーム１を天井部１０側に向けて回転させ、天井部１０の下面にアンカーナット１１とでダブルナット状態で締め付け固定する。最後に、脱落防止用ナット８ａを下水平片４方向に回して下水平片４上に位置するワッシャ８ｃに軽く接触又は近接位置まで下げる。   Then, the frame 1 screwed on the suspension bolt 7 is rotated toward the ceiling portion 10, and is fastened and fixed to the lower surface of the ceiling portion 10 with an anchor nut 11 in a double nut state. Finally, the drop-off prevention nut 8a is rotated in the direction of the lower horizontal piece 4 to lightly contact or lower the washer 8c located on the lower horizontal piece 4.

最後に、吊支装置１２を天井部１０まで持ち上げ、吊支装置１２の側面に設けた吊り金具１４に吊下部材１３をボルト止めし、吊支装置１２を吊りボルト７に吊り下げる。   Finally, the suspension device 12 is lifted up to the ceiling portion 10, the suspension member 13 is bolted to the suspension fitting 14 provided on the side surface of the suspension device 12, and the suspension device 12 is suspended from the suspension bolt 7.

この状態で地震が発生すると重い吊支装置１２は大きく揺れ、これによって吊りボルト７は繰り返して大きく撓み、吊りボルト７の捻じ込み基部７ａに大きな繰り返し曲げモーメントが発生する。吊りボルト７の螺入部分７ｂはフレーム固着部５の下面に一致する場所まではアンカーナット１１及びフレーム固着部５に螺着されていて天井部１０と一体になっているため、この繰り返し曲げモーメントによりフレーム固着部５の下面に一致する場所の雄ネジの谷に繰り返して応力集中が発生し、遂には疲労による亀裂が入り、最後には瞬間的に断裂する。   When an earthquake occurs in this state, the heavy suspension support device 12 is greatly shaken, whereby the suspension bolt 7 is repeatedly greatly bent, and a large repeated bending moment is generated in the screw base 7a of the suspension bolt 7. Since the threaded portion 7b of the suspension bolt 7 is screwed to the anchor nut 11 and the frame fixing portion 5 up to a position coinciding with the lower surface of the frame fixing portion 5 and is integrated with the ceiling portion 10, this repeated bending moment As a result, the stress concentration is repeatedly generated in the valley of the male screw at the position coinciding with the lower surface of the frame fixing portion 5, finally cracking due to fatigue occurs, and finally, the fracture occurs instantaneously.

吊りボルト７が断裂すると、螺入部分７ｂを残して断裂した吊りボルト７はわずかに下に落ちるが、ワッシャ８ｃが緩衝材８ｂを介して下水平片４の通孔６に係合して、それ以上の落下が防止される。これにより吊りボルト７の破損によって転落を余儀なくされていた吊支装置１２の落下を確実に防止することができる。   When the suspension bolt 7 is torn, the suspension bolt 7 that has been torn apart leaving the threaded portion 7b slightly falls down, but the washer 8c is engaged with the through hole 6 of the lower horizontal piece 4 via the cushioning material 8b, Further falling is prevented. Accordingly, it is possible to reliably prevent the suspension support device 12 that has been forced to fall due to breakage of the suspension bolt 7 from falling.

なお、緩衝材８ｂの存在により、吊支装置１２が揺れている時に、緩衝材８ｂが撓むことにより揺れのエネルギーを吸収して減震させることになる。また、吊りボルト７の断裂時の衝撃も吸収することができる。   In addition, when the suspension device 12 is swaying due to the presence of the buffering material 8b, the buffering material 8b is bent to absorb the energy of the swaying and reduce the vibration. Moreover, the impact at the time of tearing of the suspension bolt 7 can also be absorbed.

また、フレーム１の垂直片２の間隔と揺れの関係であるが、揺れた時にワッシャ８ｃ（即ち、脱落防止具８）が垂直片２に、及び吊りボルト７が通孔６に衝突しないような幅又は大きさに形成しておくことが好ましい。揺れによりワッシャ８ｃが垂直片２に衝突したり、吊りボルト７が通孔６に衝突するとフレーム１に衝撃的な大きな曲げモーメントが発生して梃の作用によりアンカーナット１１を引き抜く方向の力が加わり、天井部１０を破損することになるからである。なお、上記実施例では脱落防止部８として、脱落防止用ナット８ａ、緩衝材８ｂ、ワッシャ８ｃを使用した例を示したが、脱落防止用ナット８ａとワッシャ８ｃに代えて、座付きナットを使用してもよい。上記の形態は他の実施例においても適用される。   In addition, the relationship between the distance between the vertical pieces 2 of the frame 1 and the swinging is such that the washer 8c (that is, the drop-off prevention tool 8) does not collide with the vertical piece 2 and the suspension bolt 7 does not collide with the through-hole 6 when swung. It is preferable to form in width or size. When the washer 8c collides with the vertical piece 2 due to shaking, or when the suspension bolt 7 collides with the through hole 6, a shocking large bending moment is generated in the frame 1, and a force in the direction of pulling out the anchor nut 11 is applied by the action of the hook. This is because the ceiling part 10 is damaged. In the above embodiment, the drop prevention nut 8a, the cushioning material 8b, and the washer 8c are used as the fall prevention part 8. However, instead of the fall prevention nut 8a and the washer 8c, a seated nut is used. May be. The above-mentioned form is also applied to other embodiments.

図４は、本発明の第２実施例で、フレーム１が垂直片２を１つとし、その上下両端に上・下水平片３、４を設けたコ字状のものである。フレーム固着部５及び通孔６は実施例１と同様に形成されている。そして前述のように地震が発生し、吊りボルト７が捻じ込み基部７ａで破断した場合、実施例１と同様、破断した吊りボルト７に螺着した脱落防止部８が下水平片４の通孔６に係合して実施例１と同様に吊支装置１２の落下を防止することができる。なおこの場合、フレーム１の垂直片２が１つで上・下水平片３、４が片持ちとなるため、垂直片２が吊支装置１２の重量に応じて撓むことになる。この撓みによって、破断時の衝撃を吸収することができるので、緩衝材８ｂを省略してもよい。また、第２実施例でも第１実施例と同様に地震による吊りボルト７の撓みが生じたとき、脱落防止部８や吊りボルト７が、垂直片２や通孔６に接触しない程度に通孔６や垂直片２の間隔を上記のように空けておくことが好ましい。   FIG. 4 shows a second embodiment of the present invention in which the frame 1 has a U-shape with one vertical piece 2 and upper and lower horizontal pieces 3 and 4 provided at both upper and lower ends thereof. The frame fixing portion 5 and the through hole 6 are formed in the same manner as in the first embodiment. When an earthquake occurs and the suspension bolt 7 is screwed and broken at the base portion 7a as described above, the drop-off prevention portion 8 screwed to the broken suspension bolt 7 is the through hole of the lower horizontal piece 4 as in the first embodiment. 6, the suspension device 12 can be prevented from dropping as in the first embodiment. In this case, since the vertical piece 2 of the frame 1 is one and the upper and lower horizontal pieces 3 and 4 are cantilevered, the vertical piece 2 bends according to the weight of the suspension device 12. Since the impact at the time of breakage can be absorbed by this bending, the cushioning material 8b may be omitted. Further, in the second embodiment as well as in the first embodiment, when the suspension bolt 7 is bent due to an earthquake, the drop-off prevention portion 8 and the suspension bolt 7 do not contact the vertical piece 2 or the through-hole 6. 6 and the interval between the vertical pieces 2 are preferably left as described above.

図５〜７は、本発明の第３実施例で、既設の吊りボルト７に装着できる落下防止具Ａである。フレーム１は、フレーム固着部５及び通孔６を通って２分割されたフレーム半体１ａ、１ｂとで構成され、脱落防止部８は、吊りボルト７への固着部分を通って２分割された防止部半体８ａ１、８ａ２とで構成されている。   FIGS. 5-7 is the fall prevention tool A which can be mounted | worn with the existing suspension bolt 7 by 3rd Example of this invention. The frame 1 is composed of frame halves 1a and 1b that are divided into two through the frame fixing part 5 and the through-hole 6, and the drop-off prevention part 8 is divided into two through the fixing part to the suspension bolt 7. It consists of prevention part halves 8a1, 8a2.

フレーム半体１ａ、１ｂは、図６から分かるように、一方の側面に丁番部１ｆが形成されていて、開閉可能になっている。そして他方の側面には耳部１ｃ、１ｄが延出されており、一方の耳部１ｃにはボルト孔１ｃ１が穿設されており、他方の耳部１ｄにはこれに一致してねじ孔１ｄ１が螺設されている。   As can be seen from FIG. 6, the frame halves 1 a and 1 b have a hinge portion 1 f formed on one side surface and can be opened and closed. Ear portions 1c and 1d extend on the other side surface, and one ear portion 1c has a bolt hole 1c1, and the other ear portion 1d has a screw hole 1d1 corresponding thereto. Is screwed.

フレーム固着部５は、図６の場合、２分割体で雌ネジ部半体５ａ、５ｂとなっており、フレーム半体１ａ、１ｂの下面にそれぞれ溶接で一体化されている。分割面には雌ネジ５ｆが刻設されており、丸孔３ａに一致している。勿論、丸孔３ａの丸孔３ａに雌ネジを刻設し、これをフレーム固着部５としてもよい。   In the case of FIG. 6, the frame fixing part 5 is divided into two female screw part halves 5a and 5b, and is integrated with the lower surfaces of the frame half parts 1a and 1b by welding. An internal thread 5f is engraved on the dividing surface and coincides with the round hole 3a. Of course, a female screw may be engraved in the round hole 3 a of the round hole 3 a and this may be used as the frame fixing portion 5.

本実施例では、脱落防止部８の脱落防止ナット８ａは、脱落防止ナット８ａは、２分割体のナット半体８ａ１、８ａ２とで構成されており、その一方の側面に丁番部８ｔが形成され、ナット半体８ａ１、８ａ２が軸８ｅにて開閉可能となっている。分割面には雌ネジ部９が刻設されており、ナット半体８ａ１の他方の側面にボルト孔８ｄが、ナット半体８ａ２の他方の側面に雌ネジ孔８ｇが形成され、締め込みボルト８ｈがここに装着されている。   In this embodiment, the drop-off prevention nut 8a of the drop-off prevention portion 8 is constituted by two half nuts 8a1 and 8a2 and a hinge portion 8t is formed on one side surface thereof. The nut halves 8a1 and 8a2 can be opened and closed by the shaft 8e. A female threaded portion 9 is engraved on the split surface, a bolt hole 8d is formed on the other side surface of the nut half body 8a1, and a female screw hole 8g is formed on the other side surface of the nut half body 8a2. Is attached here.

緩衝材８ｂはリング状に形成されていて、前述同様、合成ゴムや、低反発ゴム等が使用され、切れ目が設けられており、切れ目部分に係合突起８ｂ１、８ｂ２が形成されている。   The shock-absorbing material 8b is formed in a ring shape, and as described above, synthetic rubber, low-resilience rubber or the like is used, and a cut is provided, and engagement protrusions 8b1 and 8b2 are formed at the cut portion.

この場合は、既設の吊りボルト７に装着するため、フレーム半体１ａ、１ｂを開き、天井部１０から吊り下がっている吊りボルト７を、その前後からフレーム半体１ａ、１ｂにて挟み込み、丸孔３ａ及び通孔６に吊りボルト７を挿通すると共にフレーム固着部５の雌ネジ５ｆを吊りボルト７に噛に込ませる。前述のように、丸孔３ａに雌ネジが刻設されておれば、丸孔３ａが、閉じたフレーム１が吊りボルト７に係合して落下しない。そしてこの状態で、締結ボルト１ｅを耳部１ｃ、１ｄに螺装してフレーム１を仮留めする。   In this case, in order to attach to the existing suspension bolt 7, the frame halves 1a and 1b are opened, and the suspension bolt 7 suspended from the ceiling portion 10 is sandwiched by the frame halves 1a and 1b from the front and rear thereof. The suspension bolt 7 is inserted into the hole 3 a and the through hole 6, and the female screw 5 f of the frame fixing portion 5 is engaged with the suspension bolt 7. As described above, if a female screw is engraved in the round hole 3a, the closed hole 1 does not fall when the closed frame 1 is engaged with the suspension bolt 7. In this state, the fastening bolt 1e is screwed to the ear portions 1c and 1d to temporarily fix the frame 1.

この状態で、緩衝材８ｂを係合突起８ｂ１、８ｂ２を外して緩衝材８ｂを開き、吊りボルト７に外嵌しれから、再度、係合突起８ｂ１、８ｂ２を嵌め合わせる。   In this state, the engaging projections 8b1 and 8b2 are removed from the cushioning material 8b, the cushioning material 8b is opened, and the engaging projections 8b1 and 8b2 are fitted again after the cushioning material 8b is fitted onto the suspension bolt 7.

続いて、脱落防止部８を開き、仮留めしたフレーム１内で吊りボルト７に嵌め込む。脱落防止部８は緩衝材８ｂの直上に配置され、締め込みボルト８ｈでそれぞれ仮固定され、吊りボルト７に噛合させる。   Subsequently, the drop-off prevention part 8 is opened and fitted into the suspension bolt 7 in the temporarily fastened frame 1. The drop-off prevention unit 8 is disposed immediately above the cushioning material 8 b, temporarily fixed with fastening bolts 8 h, and meshed with the suspension bolt 7.

この状態でフレーム１を螺進させて天井部１０の下面に接触させ、締結ボルト１ｅを締め込んでフレーム１を固定一体化する。そして、脱落防止部８を緩衝材８ｂに軽く接触するまで螺進させる。最後に、締め込みボルト８ｈを締め込んで脱落防止部８を固定一体化する。このように既設の吊りボルト７に落下防止具Ａを装着するが、この状態で、地震が発生すると、実施例１で述べたと同じ状態で吊支装置１２の落下が防止される。なお、取り付け手順は一例であり、上記の手順に限定されることはなく、この点も他の実施例においても同様である。   In this state, the frame 1 is screwed and brought into contact with the lower surface of the ceiling portion 10, and the fastening bolt 1 e is tightened to fix and integrate the frame 1. Then, the drop-off prevention unit 8 is screwed until it comes into light contact with the cushioning material 8b. Finally, the tightening bolt 8h is tightened, and the drop-off prevention portion 8 is fixed and integrated. As described above, the fall prevention tool A is mounted on the existing suspension bolt 7. When an earthquake occurs in this state, the suspension device 12 is prevented from falling in the same state as described in the first embodiment. In addition, the attachment procedure is an example, and is not limited to the above-described procedure, and this point is the same in other embodiments.

図７はフレーム固着部５が２分割の別体で、雌ネジ部半体５ａ、５ｂとで構成されており、その一方の側面に丁番部５ｔが形成され、雌ネジ部半体５ａ、５ｂが軸５ｅにて開閉可能となっている。分割面には雌ネジ５ｆが刻設されており、雌ネジ部半体５ａの他方の側面にボルト孔５ｄが、雌ネジ部半体５ｂの他方の側面に雌ネジ孔５ｇが形成され、締め込みボルト５ｈがここに装着されている。   In FIG. 7, the frame fixing part 5 is divided into two separate parts, and is composed of female screw halves 5a and 5b. A hinge part 5t is formed on one side surface of the female screw halves 5a, 5b can be opened and closed by a shaft 5e. A female screw 5f is engraved on the dividing surface, a bolt hole 5d is formed on the other side of the female screw half 5a, and a female screw hole 5g is formed on the other side of the female screw half 5b. The insert bolt 5h is attached here.

本実施例では、脱落防止部８の脱落防止ナット８ａは、図６と同一形状のものが採用されており、その説明を援用する。緩衝材８ｂも図６と同一形状のものが採用されており、その説明を援用する。   In the present embodiment, the drop-off prevention nut 8a of the drop-off prevention unit 8 has the same shape as that of FIG. 6, and the description thereof is cited. The buffer material 8b has the same shape as that shown in FIG.

しかして、フレーム半体１ａ、１ｂを開き、天井部１０から吊り下がっている吊りボルト７を、その前後からフレーム半体１ａ、１ｂにて挟み込み、丸孔３ａ及び通孔６に吊りボルト７を挿通する。丸孔３ａに雌ネジが刻設されておれば、丸孔３ａが吊りボルト７に噛に込み、閉じたフレーム１が吊りボルト７に係合して落下しない。そしてこの状態で、締結ボルト１ｅを耳部１ｃ、１ｄに螺装してフレーム１を仮留めする。この状態で、緩衝材８ｂを前記同様にして吊りボルト７に外嵌する。   Then, the frame halves 1a and 1b are opened, the suspension bolts 7 suspended from the ceiling portion 10 are sandwiched by the frame halves 1a and 1b from the front and rear thereof, and the suspension bolts 7 are inserted into the round holes 3a and the through holes 6. Insert. If a female screw is engraved in the round hole 3a, the round hole 3a engages with the suspension bolt 7, and the closed frame 1 engages with the suspension bolt 7 and does not fall. In this state, the fastening bolt 1e is screwed to the ear portions 1c and 1d to temporarily fix the frame 1. In this state, the buffer material 8b is externally fitted to the suspension bolt 7 in the same manner as described above.

続いて、フレーム固着部５及び脱落防止部８を開き、仮留めしたフレーム１内で吊りボルト７に嵌め込む。フレーム固着部５は上水平片３の直下で、脱落防止部８は緩衝材８ｂの直上に配置され、締め込みボルト５ｈ、８ｈでそれぞれ仮固定され、吊りボルト７に噛合する。   Subsequently, the frame fixing part 5 and the drop-off preventing part 8 are opened and fitted into the suspension bolt 7 in the temporarily fastened frame 1. The frame fixing portion 5 is disposed immediately below the upper horizontal piece 3, and the drop-off prevention portion 8 is disposed immediately above the cushioning material 8 b, and is temporarily fixed by fastening bolts 5 h and 8 h, and meshes with the suspension bolt 7.

この状態でフレーム１を天井部１０の下面に接触させ、続いてフレーム固着部５を天井部１０方向に螺進させてフレーム１を天井部１０の下面に押圧する。そして、脱落防止部８を緩衝材８ｂに軽く接触するまで螺進させる。最後に、締結ボルト１ｅ、締め込みボルト５ｈ、８ｈを締め込んでフレーム１、フレーム固着部５及び脱落防止部８を固定一体化する。地震発生時は前述の作用で吊支装置１２の落下が防止される。   In this state, the frame 1 is brought into contact with the lower surface of the ceiling portion 10, and then the frame fixing portion 5 is screwed toward the ceiling portion 10 to press the frame 1 against the lower surface of the ceiling portion 10. Then, the drop-off prevention unit 8 is screwed until it comes into light contact with the cushioning material 8b. Finally, the fastening bolt 1e and the fastening bolts 5h and 8h are fastened to fix and integrate the frame 1, the frame fixing part 5 and the drop-off preventing part 8 together. When an earthquake occurs, the suspension device 12 is prevented from falling by the above-described action.

Ａ…落下防止具，１…フレーム，１ａ、１ｂ…フレーム半体, １ｃ、１ｄ…耳部，１ｃ１…ボルト孔，１ｄ１…ねじ孔，１ｅ…締結ボルト，１ｆ…丁番部，２…垂直片，３…上水平片，３ａ…丸孔，４…下水平片，５…フレーム固着部，５ａ、５ｂ…雌ネジ部半体，５ｄ…ボルト孔，５ｅ…軸，５ｆ…雌ネジ，５ｇ…雌ネジ孔，５ｈ…締め込みボルト，５ｔ…丁番部，６…通孔，７…吊りボルト，７ａ…捻じ込み基部，７ｂ…螺入部分，８…脱落防止部，８ａ…脱落防止用ナット，８ａ１、８ａ２…防止部半体，８ｂ…緩衝材，８ｂ１、８ｂ２…係合突起，８ｃ…ワッシャ，８ｄ…ボルト孔，８ｇ…雌ネジ孔，８ｈ…締め込みボルト，８ｔ…丁番部，９…雌ネジ部，１０…天井部，１１…アンカーナット，１２…吊支装置，１３…吊下部材，１４…吊り金具。   A ... Fall prevention device, 1 ... Frame, 1a, 1b ... Half frame, 1c, 1d ... Ear part, 1c1 ... Bolt hole, 1d1 ... Screw hole, 1e ... Fastening bolt, 1f ... Hinge part, 2 ... Vertical piece , 3 ... upper horizontal piece, 3a ... round hole, 4 ... lower horizontal piece, 5 ... frame fixing part, 5a, 5b ... female screw half, 5d ... bolt hole, 5e ... shaft, 5f ... female screw, 5g ... Female screw hole, 5h ... tightening bolt, 5t ... hinge part, 6 ... through hole, 7 ... suspension bolt, 7a ... screwing base, 7b ... screw-in part, 8 ... drop-off prevention part, 8a ... drop-off prevention nut , 8a1, 8a2 ... prevention part half, 8b ... cushioning material, 8b1, 8b2 ... engagement protrusion, 8c ... washer, 8d ... bolt hole, 8g ... female screw hole, 8h ... tightening bolt, 8t ... hinge part, DESCRIPTION OF SYMBOLS 9 ... Female thread part, 10 ... Ceiling part, 11 ... Anchor nut, 12 ... Suspension support apparatus, 13 ... Suspension member, 4 ... hanging bracket.

Claims (4)

垂直片と、該垂直片の上端に設けられ、建築躯体の天井部から垂設された吊りボルトが挿通され、且つ、該吊りボルトの天井部への捻じ込み基部に固定されるフレーム固着部が設けられた上水平片と、該垂直片の下端に設けられ、吊りボルトの挿通用の通孔が形成された下水平片とで構成されたフレームと、
フレーム内に配設され、外径が下水平片の通孔より大きく、吊りボルトに固定される脱落防止部とで構成されることを特徴とする吊支装置の落下防止具。 A vertical piece, and a frame fixing portion provided at an upper end of the vertical piece, through which a suspension bolt suspended from the ceiling portion of the building frame is inserted, and fixed to a screw base to the ceiling portion of the suspension bolt A frame composed of an upper horizontal piece provided, and a lower horizontal piece provided at a lower end of the vertical piece and having a through hole for insertion of a suspension bolt;
A fall prevention device for a suspension support device, comprising: a fall prevention portion disposed in a frame and having an outer diameter larger than a through hole of a lower horizontal piece and fixed to a suspension bolt. フレームが、１つの垂直片の上下両端に上・下水平片を設けたコ字状、または２以上の垂直片の上下両端に上・下水平片を設けた箱型であることを特徴とする請求項１に記載の吊支装置の落下防止具。   The frame is a U-shape in which upper and lower horizontal pieces are provided at upper and lower ends of one vertical piece, or a box shape in which upper and lower horizontal pieces are provided at upper and lower ends of two or more vertical pieces. The fall prevention tool of the suspension support apparatus of Claim 1. 脱落防止部が、脱落防止用ナットと、脱落防止用ナットと下水平片との間に設けられる緩衝材或いは脱落防止用ナットと緩衝材に加えて脱落防止用ナットと緩衝材との間に設けられ、下水平片の通孔より外径が大きいワッシャとで構成されていることを特徴とする請求項１又は２に記載の吊支装置の落下防止具。   The fall prevention part is provided between the fall prevention nut and the cushioning material in addition to the fall prevention nut and the cushioning material provided between the fall prevention nut and the lower horizontal piece or the fall prevention nut and cushioning material. The hanging prevention device of the suspension support device according to claim 1 or 2, wherein a washer having a larger outer diameter than the through hole of the lower horizontal piece. フレームは、フレーム固着部及び通孔を通って２分割されたフレーム半体とで構成され、
脱落防止部は、吊りボルトへの固着部分を通って２分割された防止部半体とで構成されていることを特徴とする請求項１〜３のいずれかに記載の吊支装置の落下防止具。 The frame is composed of a frame half part divided into two through a frame fixing part and a through hole,
The fall prevention part according to any one of claims 1 to 3, wherein the drop prevention part is constituted by a half part of a prevention part that is divided into two through a fixing part to the suspension bolt. Ingredients.
JP2013094039A 2013-04-26 2013-04-26 Fall prevention tool for suspension support device Active JP6178608B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2013094039A JP6178608B2 (en) 2013-04-26 2013-04-26 Fall prevention tool for suspension support device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2013094039A JP6178608B2 (en) 2013-04-26 2013-04-26 Fall prevention tool for suspension support device

Publications (2)

Publication Number Publication Date
JP2014214531A true JP2014214531A (en) 2014-11-17
JP6178608B2 JP6178608B2 (en) 2017-08-09

Family

ID=51940565

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2013094039A Active JP6178608B2 (en) 2013-04-26 2013-04-26 Fall prevention tool for suspension support device

Country Status (1)

Country Link
JP (1) JP6178608B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5820938B1 (en) * 2015-01-19 2015-11-24 片山チエン株式会社 Tensioner device
JP2018150793A (en) * 2017-03-13 2018-09-27 西日本旅客鉄道株式会社 Metal fixture for vertically-provided member, and ceiling fall prevention structure using metal fixture
JPWO2021100164A1 (en) * 2019-11-21 2021-05-27
CN113062522A (en) * 2021-02-23 2021-07-02 郭铁森 Automatic clamping prevents furred ceiling that injures by a crashing object when droing

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007186855A (en) * 2006-01-11 2007-07-26 Nippon Kenko Kk Sling
JP2007205045A (en) * 2006-02-02 2007-08-16 Sawata Kenzaisha:Kk Hanging bolt steady stop device
JP2011027229A (en) * 2009-07-28 2011-02-10 Showa Corporation Joint nut

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007186855A (en) * 2006-01-11 2007-07-26 Nippon Kenko Kk Sling
JP2007205045A (en) * 2006-02-02 2007-08-16 Sawata Kenzaisha:Kk Hanging bolt steady stop device
JP2011027229A (en) * 2009-07-28 2011-02-10 Showa Corporation Joint nut

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5820938B1 (en) * 2015-01-19 2015-11-24 片山チエン株式会社 Tensioner device
JP2018150793A (en) * 2017-03-13 2018-09-27 西日本旅客鉄道株式会社 Metal fixture for vertically-provided member, and ceiling fall prevention structure using metal fixture
JPWO2021100164A1 (en) * 2019-11-21 2021-05-27
JP7380707B2 (en) 2019-11-21 2023-11-15 三菱電機株式会社 Suspension device for indoor unit of air conditioner and indoor unit of air conditioner
CN113062522A (en) * 2021-02-23 2021-07-02 郭铁森 Automatic clamping prevents furred ceiling that injures by a crashing object when droing

Also Published As

Publication number Publication date
JP6178608B2 (en) 2017-08-09

Similar Documents

Publication Publication Date Title
JP6178608B2 (en) Fall prevention tool for suspension support device
JP5857105B2 (en) Anti-rest bracket fixing part structure
KR102109580B1 (en) Seismic Coupler of Thread Bolt
JP6404583B2 (en) Ceiling hanging bolt, ceiling material mounting device and universal joint
KR102173314B1 (en) Ceiling finishing apparatus using connection clip for ceiling frame
SG182046A1 (en) Hanging type vibration isolator
JP5958743B2 (en) Suspended ceiling structure
JP2004068902A5 (en)
JP5732950B2 (en) Seismic structure of suspended ceiling
JP2020041422A (en) Protective net stretching structure
JP4787607B2 (en) Suspended ceiling hanging bracket
JP4963484B2 (en) Seismic reinforcement brackets and mounting methods
JP5643595B2 (en) Anti-rest bracket
JP6148099B2 (en) Ceiling fall prevention structure and construction method thereof
JP5964601B2 (en) insert
JP2013096650A (en) Falling prevention fitting for air-conditioning equipment
JP3180375U (en) Seismic bracket with hanging bolts attached to C-shaped steel
KR102173311B1 (en) The apparatus and constructing method of ceiling finishing using damping bracket
JP2013117363A (en) Falling prevention metal fitting of air conditioner
KR20170032555A (en) Cable tray
JP5633202B2 (en) Ceiling fire extinguishing system
JP6221398B2 (en) Ceiling structure
JP2007170768A (en) Structure of earthquake-proof fitting for hanging metal fitting
JP6239874B2 (en) Suspension support
JP2006132893A (en) Ceiling embedded air conditioner

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20151204

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20161020

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20161206

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20170130

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20170620

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20170714

R150 Certificate of patent or registration of utility model

Ref document number: 6178608

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250