JP2017150185A

JP2017150185A - Inspection door attachment metal and inspection door

Info

Publication number: JP2017150185A
Application number: JP2016031888A
Authority: JP
Inventors: 有弘永谷; Arihiro Nagatani
Original assignee: Naka Corp
Current assignee: Naka Corp
Priority date: 2016-02-23
Filing date: 2016-02-23
Publication date: 2017-08-31
Anticipated expiration: 2036-02-23
Also published as: JP6509145B2

Abstract

PROBLEM TO BE SOLVED: To provide an inspection door attachment metal which may stably ensure an excellent fixation strength and being established by a simple operation, and to provide an inspection door which may stably ensure an excellent fixation strength and being established by a simple operation.SOLUTION: An inspection door attachment metal 17 is configured, which comprises a connection part 2 connected to a support base 1; a long adjusting part 4 whose one end part is connected to an inspection door main body 3 and whose the other end part is connected to the connection part 2 in a movable manner; and a fastening part 5 fastening the adjusting part 4 with the connection part 2 in a contacting state with pressure, in which a foldable part 6 which is folded by press utilizing fastening force by the fastening part 5 which made the adjusting part 4 to the contacting state is formed. An inspection door is configured to comprise the inspection door attachment metal and an inspection door main body supported on the support base by the inspection door attachment metal.SELECTED DRAWING: Figure 3

Description

本発明は吊り金具および点検口の設置方法に関するものである。 The present invention relates to a method for installing a hanging bracket and an inspection port.

点検口取付金具としては、従来、特許文献１に記載のものが知られている。この従来例において、吊り金具は、上下方向に延び、その下端部が天井点検口枠材に固定される吊り具本体と、天井裏の梁部材に取り付けられるとともに、上記吊り具本体と固定用ボルトによって締結される固定具とを備える。 Conventionally, the inspection port mounting bracket described in Patent Document 1 is known. In this conventional example, the hanging bracket extends in the vertical direction, and the lower end of the hanging bracket is attached to the ceiling inspection frame material, and is attached to the beam member on the back of the ceiling. And a fastener to be fastened.

上記吊り具本体には、その長手方向に延びる長孔が形成され、この長孔は、上述の固定用ボルトの軸部が挿通可能で、かつ、当該ボルトの頭部が挿通不能な幅を有し、さらに、以上の長孔の上端及び下端には、固定用ボルトの頭部が挿通するのに十分な孔径を有する頭部挿通孔が設けられる。また、上記固定具には、固定用ボルトが螺合可能な雌ネジが形成される。 A long hole extending in the longitudinal direction is formed in the hanger body, and the long hole has a width that allows the shaft portion of the fixing bolt to be inserted and the head portion of the bolt not to be inserted. Furthermore, a head insertion hole having a hole diameter sufficient for the head of the fixing bolt to be inserted is provided at the upper end and the lower end of the long hole. Further, the fixing tool is formed with a female screw to which a fixing bolt can be screwed.

天井点検口の設置は、先ず、天井点検口枠材に吊り具本体の下端部を固定した状態で、吊り具本体が梁部材の内側面に接触等する位置に持ち上げ、この状態で、固定具に仮止めした固定用ボルトの頭部を上方の頭部挿通孔に挿通させながら梁部材に対して固定具を取り付ける。次いで、固定用ボルトの軸部を長孔内で移動させながら天井点検口枠材をさらに持ち上げ、所望の高さ位置に位置決めしたら、固定用ボルトを締め付ける。 To install the ceiling inspection port, first, with the lower end of the lifting device main body fixed to the ceiling inspection port frame material, lift the lifting device main body to a position where it contacts the inner surface of the beam member. The fixing tool is attached to the beam member while the head of the fixing bolt temporarily fixed to is inserted into the upper head insertion hole. Next, the ceiling inspection frame material is further lifted while the shaft portion of the fixing bolt is moved in the long hole, and when it is positioned at a desired height position, the fixing bolt is tightened.

これにより、固定用ボルトによって吊り具本体と固定具が締結され、吊り具本体が梁部材に安定した状態で固定される。さらにこの後、例えば吊り具本体の固定具よりも上側に延びている部分を折り曲げれば、吊り具本体の固定状態がより確実になるとしている。 Thereby, the hanger body and the fixing tool are fastened by the fixing bolt, and the hanger body is fixed to the beam member in a stable state. Furthermore, after that, for example, if the portion extending upward from the fixture of the hanger body is bent, the fixed state of the hanger body is more reliable.

特許第３９０２９３２号公報Japanese Patent No. 3902932

しかしながら、上述した従来例は、吊り具本体の折り曲げ作業を忘れてしまいやすく、これにより所望の固定強度を確保しづらいという欠点がある。 However, the above-described conventional example has a drawback that it is easy to forget the folding work of the hanger body, and it is difficult to secure a desired fixing strength.

また、この折り曲げ作業は、設置作業時間を短縮させたい等の事情により、一般に、点検口の開口内という限られたスペースに入った状態のままで、やや硬質の吊り具本体を手や工具で押し曲げるという作業を作業者に強いることから、作業性が極めて悪いという欠点がある。 In addition, this bending work is generally performed in a limited space, such as in the opening of the inspection port, for reasons such as reducing the installation work time. Since the operator is forced to push and bend, there is a drawback that workability is extremely poor.

本発明は以上の欠点を解消すべくなされたものであって、優れた固定強度を安定して確保することができるとともに、設置作業の簡単な点検口取付金具の提供を目的とする。また、本発明の他の目的は、優れた固定強度を安定して確保することができるとともに、設置作業の簡単な点検口、および天井点検口の設置方法の提供にある。 The present invention has been made to solve the above drawbacks, and an object of the present invention is to provide an inspection port mounting bracket that can stably secure excellent fixing strength and can be easily installed. Another object of the present invention is to provide an installation method for an inspection port and a ceiling inspection port that can be easily secured with excellent fixing strength and can be easily installed.

本発明によれば、上記目的は、
支持基体１に連結される連結部２と、
一端部が点検口本体３に連結され、他端部が前記連結部２に位置可変に連結される長尺の調整部４と、
前記調整部４と連結部２を圧接状態で締結する締結部５とを有し、
前記調整部４を締結部５の圧接状態にする締結力を利用して押圧して折曲させる折曲部６が形成される点検口取付金具１７を提供することにより達成される。 According to the invention, the object is
A connecting portion 2 connected to the support base 1, and
A long adjusting portion 4 having one end connected to the inspection port body 3 and the other end connected to the connecting portion 2 in a variable position;
A fastening portion 5 for fastening the adjusting portion 4 and the connecting portion 2 in a pressure contact state;
This is achieved by providing an inspection port mounting bracket 17 in which a bent portion 6 is formed that is pressed and bent using a fastening force that brings the adjusting portion 4 into a pressure contact state of the fastening portion 5.

本発明によれば、点検口取付金具１７は、長尺の調整部４の一端部を点検口本体３に、他端部を連結部２を介して支持基体１に連結し、点検口本体３を支持基体１に取り付ける。連結部２は調整部４に位置可変に連結され、締結部５により調整部４と締結されて所望の位置に位置決めされるために、これにより支持基体１との間隔を調整し、点検口本体３を設置したい位置に保持することができる。 According to the present invention, the inspection port mounting bracket 17 connects one end of the long adjustment portion 4 to the inspection port main body 3 and the other end to the support base 1 via the connection portion 2. Is attached to the support substrate 1. The connecting portion 2 is variably connected to the adjusting portion 4 and is fastened to the adjusting portion 4 by the fastening portion 5 to be positioned at a desired position. Thus, the distance from the support base 1 is adjusted, and the inspection port main body is adjusted. 3 can be held at a position where it is desired to be installed.

また、連結部２が他端部において位置可変に連結される調整部４は、折曲部６により折曲され、締結部５による締結力によって調整部４と圧接状態にされる連結部２は、調整部４の折曲部分により可動方向を塞がれるようにして調整部４に対する相対移動が規制される。上述の調整部４の折曲のために点検口取付金具１７には折曲部６が形成され、この折曲部６による調整部４の折曲は、連結部２との締結に伴って締結部５により、すなわち締結部５の締結動作により折曲部６を調整部４に押圧させるようにしてなされる。 Further, the adjustment part 4 to which the connecting part 2 is connected in a variable position at the other end part is bent by the bent part 6, and the connecting part 2 brought into pressure contact with the adjusting part 4 by the fastening force by the fastening part 5 is The relative movement with respect to the adjusting unit 4 is restricted so that the movable direction is blocked by the bent portion of the adjusting unit 4. A bent portion 6 is formed in the inspection port mounting bracket 17 for bending the adjusting portion 4 described above, and the bent portion of the adjusting portion 4 by the bent portion 6 is fastened together with the connection portion 2. The bent portion 6 is pressed against the adjusting portion 4 by the portion 5, that is, by the fastening operation of the fastening portion 5.

したがって本発明によれば、調整部４と連結部２との締結による一応の固定状態の完成と同時に、特段の折り曲げ作業を要することなく調整部４が折曲され、この折曲により連結部２のより強固な固定状態が完成するために、良好な固定強度を安定して確保することができる。また、狭いスペースにおける作業性が比較的良好な締結作業をするだけで足り、別途折り曲げ作業等をも追加してする必要がないために、作業工数が少ない上に、作業性も良好であり、設置作業が極めて簡単にできる。 Therefore, according to the present invention, simultaneously with the completion of the temporarily fixed state by fastening the adjusting portion 4 and the connecting portion 2, the adjusting portion 4 is bent without requiring any special bending work. Since a more firmly fixed state is completed, good fixing strength can be stably secured. In addition, it is only necessary to perform fastening work with relatively good workability in a narrow space, and it is not necessary to add additional bending work etc., so that the work work is small and workability is also good. Installation work can be done very easily.

以上の点検口取付金具１７は、点検口を天井に設置する場合には、上述した従来例におけるように、調整部４の長手方向を上下方向に向けて下端部に点検口本体３を、上端部に連結部２をそれぞれ取り付けた上で、調整部４を連結部２の上端近傍で折曲すれば、点検口本体３の垂直荷重を調整部４の被折曲部により支持することができる。 When the inspection port mounting bracket 17 is installed on the ceiling, the inspection port main body 3 is arranged at the lower end with the longitudinal direction of the adjustment unit 4 facing the vertical direction, as in the conventional example described above. If the adjusting part 4 is bent in the vicinity of the upper end of the connecting part 2 after the connecting parts 2 are attached to the parts, the vertical load of the inspection port body 3 can be supported by the bent part of the adjusting part 4. .

上述した締結部５による調整部４の折曲は、具体的には例えば連結部２、締結部５自身、あるいはその他の別部材に折曲部６としての突起を設け、締結部５による締結方向の力により、この突起によって調整部４の被折曲部を折り曲げて実現することができる。このような点検口取付金具１７は、
支持基体１に連結される連結金具７と、
一端部が点検口本体３に連結され、他端部が前記連結金具７に位置可変に連結される長尺の調整部材８と、
前記調整部材８と連結金具７を圧接状態で締結する締結手段９とを有し、
前記連結金具７には、圧接方向に突設され、締結手段９の圧接状態にする締結力を利用して調整部材８を折曲させる突起１０を形成して構成することができる。 Specifically, the adjustment portion 4 is bent by the fastening portion 5 described above, for example, a projection as the bending portion 6 is provided on the connecting portion 2, the fastening portion 5 itself, or another separate member, and the fastening direction by the fastening portion 5 is determined. By this force, the bent portion of the adjusting portion 4 can be bent by this protrusion. Such an inspection port mounting bracket 17 is
A connection fitting 7 connected to the support base 1,
A long adjusting member 8 having one end connected to the inspection port body 3 and the other end connected to the connecting fitting 7 in a variable position;
Fastening means 9 for fastening the adjusting member 8 and the connecting fitting 7 in a pressure contact state;
The connection fitting 7 can be formed by forming a protrusion 10 that protrudes in the press-contact direction and bends the adjusting member 8 by using a fastening force that brings the fastening means 9 into a press-contact state.

上述のように突起１０を連結金具７に配置すると、ボルトナット等の市販されているものを締結手段９としてそのまま使用でき、また別部材の追加も不要になるために、製作がより簡単になる。突起１０は、調整部材８の断面形状や曲がりやすさなどを考慮し、その形状やサイズ、数量を決めることができる。 As described above, when the protrusion 10 is arranged on the connecting metal member 7, a commercially available product such as a bolt and nut can be used as it is as the fastening means 9, and it is not necessary to add another member. . The shape, size, and quantity of the protrusion 10 can be determined in consideration of the cross-sectional shape of the adjustment member 8 and the ease of bending.

また、上記締結手段９は、
連結金具７に一体的に形成されたネジ部１１と、
把持部１２が形成され、前記ネジ部１１に螺合されるナット１３あるいはボルトにより構成することができる。把持部１２を備えたものとしては、例えば蝶ナットや蝶ボルト、あるいはノブナットやノブボルトなどを使用することができ、このようなものを使用することで設置作業に際して工具が不要になる。 The fastening means 9 includes
A threaded portion 11 formed integrally with the connecting bracket 7;
A gripping portion 12 is formed and can be constituted by a nut 13 or a bolt that is screwed into the screw portion 11. For example, a wing nut, a wing bolt, or a knob nut, a knob bolt, or the like can be used as the one provided with the grip portion 12, and by using such a thing, a tool is not required for installation work.

さらに、上記連結金具７は、チャンネル材からなる支持基体１を内部に挿入可能な略コ字断面形状に形成され、開放部が調整部材８により閉塞される連結部２を有して構成することができる。上記支持基体１には、例えば梁、柱、土台、大引、野縁、根太、さらには適宜の下地組などをそのまま使用することも可能であるが、このような梁等に新たに点検口を設置するためのチャンネル材を取り付けてこれを使用することもでき、この場合、点検口の設置場所を自由に設定できる。また、連結部２がチャンネル材を表裏いずれの向きでも挿入可能な構造であると、チャンネル材の取り付け作業も簡単になる。 Further, the connection fitting 7 is formed to have a substantially U-shaped cross-sectional shape into which the support base 1 made of a channel material can be inserted, and the open portion is closed by the adjustment member 8. Can do. For example, a beam, a column, a base, a large draw, a field edge, a joist, or an appropriate base assembly can be used as it is for the support base 1, but a new inspection port is provided for such a beam. It is also possible to attach and use a channel material for installing the inspection port. In this case, the installation location of the inspection port can be freely set. In addition, when the connecting portion 2 has a structure in which the channel material can be inserted in either the front or back direction, the mounting operation of the channel material is simplified.

加えて、前記調整部材８は、長手方向を上下方向に向けて点検口本体３を支持基体１から吊下支持し、
前記連結部２には、上部側壁１４を貫通して雌ネジ１５が形成されるとともに、下部側壁１６は変形により内部空間を上下方向に拡張可能に形成されるように構成することができる。 In addition, the adjustment member 8 suspends and supports the inspection port main body 3 from the support base 1 with the longitudinal direction directed in the vertical direction,
The connecting portion 2 is formed with a female screw 15 penetrating through the upper side wall 14, and the lower side wall 16 can be formed so that the internal space can be expanded in the vertical direction by deformation.

すなわち、支持基体１から点検口本体３を吊下支持する点検口としての天井点検口は、その点検口本体３が外枠と内枠とで構成されて内枠の内部に天井材を取り付けて蓋体にするのが一般的であり、設置作業の邪魔にならないように、天井材の内枠への取り付けは設置作業の最終段階でなされるのが一般的である。しかしながら、このようにすると設置作業の最終段階で調整部材８が負担する垂直荷重が急激に増加してしまい、それまでの作業では点検口本体３の設置位置が天井面に合わせてられていても、点検口本体３がやや下側に移動して設置位置が天井面から飛び出してしまうおそれがある。このような場合、上述した上部側壁１４の雌ネジ１５に適宜のネジをねじ込み、内部の支持基体１を下側に押せば、下部側壁１６を変形させて連結部２の内部空間が上下方向に拡張し、支持基体１が連結部２に対して下方に相対移動、言い換えれば連結部２が支持基体１に対して上方に相対移動することから、これにより点検口本体３の設置位置が天井面に合うように修正できる。 That is, the ceiling inspection port as an inspection port for hanging and supporting the inspection port main body 3 from the support base 1 has an inspection frame main body 3 composed of an outer frame and an inner frame, and a ceiling material is attached inside the inner frame. It is common to use a lid, and the ceiling material is generally attached to the inner frame at the final stage of the installation work so as not to interfere with the installation work. However, if this is done, the vertical load borne by the adjusting member 8 at the final stage of the installation work will increase abruptly, and even if the installation position of the inspection port main body 3 is adjusted to the ceiling surface in the previous work. There is a possibility that the inspection port body 3 moves slightly downward and the installation position jumps out of the ceiling surface. In such a case, if an appropriate screw is screwed into the female screw 15 of the above-described upper side wall 14 and the internal support base 1 is pushed downward, the lower side wall 16 is deformed, and the internal space of the connecting portion 2 is moved vertically. Since the support base 1 is relatively moved downward relative to the connecting portion 2, in other words, the connecting portion 2 is relatively moved upward relative to the support base 1, the installation position of the inspection port body 3 is thereby changed to the ceiling surface. Can be modified to fit.

以上の点検口取付金具１７は、該点検口取付金具１７により支持基体１に支持される点検口本体３と組み合わせて点検口として構成することができる。 The inspection port mounting bracket 17 described above can be configured as an inspection port in combination with the inspection port body 3 supported by the support base 1 by the inspection port mounting bracket 17.

以上の説明から明らかなように、本発明によれば、点検口の設置に際し、優れた固定強度を安定して確保することができるとともに、設置作業も簡単にできるために、設置作業品質と設置作業性の双方が向上する。 As is clear from the above description, according to the present invention, when installing the inspection port, it is possible to stably secure an excellent fixing strength and to simplify the installation work. Both workability is improved.

本発明に係る点検口取付金具を示す図で、（ａ）および（ｂ）は表裏の斜視図、（ｃ）は点検口本体や支持基体との取り合いを示す斜視図である。It is a figure which shows the inspection port attachment metal fitting which concerns on this invention, (a) And (b) is a perspective view of front and back, (c) is a perspective view which shows engagement with an inspection port main body and a support base | substrate. 点検口取付金具の点検口本体や支持基体への取り付け方法を説明する要部分解斜視図である。It is a principal part disassembled perspective view explaining the attachment method to the inspection port main body and support base | substrate of an inspection port attachment bracket. 天井点検口の設置状態を説明する要部縦断面図である。It is a principal part longitudinal cross-sectional view explaining the installation state of a ceiling inspection port. 天井点検口の設置方法を説明する図で、（ａ）は調整部材を地組みした点検口本体を支持基体に位置合わせする作業を説明する図、（ｂ）は支持基体に連結金具を装着する作業を説明する図である。It is a figure explaining the installation method of a ceiling inspection port, (a) is a figure explaining the operation | work which aligns the inspection port main body which assembled the adjustment member to a support base, (b) attaches a connection metal fitting to a support base. It is a figure explaining work. 天井点検口の設置方法を説明する図で、（ａ）は締結手段により調整部材と連結金具を締結する作業の初期段階を説明する図、（ｂ）は締結手段により調整部材と連結金具を締結する作業の終期段階を説明する図である。It is a figure explaining the installation method of a ceiling inspection port, (a) is a figure explaining the initial stage of the operation | work which fastens an adjustment member and a connection metal fitting by a fastening means, (b) Fastens an adjustment member and a connection metal fitting by a fastening means It is a figure explaining the final stage of the operation | work to perform. 本発明に係る点検口取付金具の変形例を示す斜視図である。It is a perspective view which shows the modification of the inspection port attachment metal fitting which concerns on this invention. 変形例における天井点検口の設置位置についての補助的な位置の微調整作業を説明する図で、（ａ）は調整前の状態を示す要部断面図、（ｂ）は調整後の状態を示す要部断面図である。It is a figure explaining the fine adjustment operation | movement of the auxiliary position about the installation position of the ceiling inspection port in a modification, (a) is principal part sectional drawing which shows the state before adjustment, (b) shows the state after adjustment. It is principal part sectional drawing. 本発明に係る点検口取付金具の他の変形例を示す側面図である。It is a side view which shows the other modification of the inspection port attachment metal fitting which concerns on this invention. 本発明に係る点検口取付金具のさらに他の変形例を示す側面図である。It is a side view which shows the other modification of the inspection port attachment metal fitting which concerns on this invention.

図１ないし図５に本発明に係る点検口取付金具１７の実施の形態を示す。点検口取付金具１７は、図１に示すように、スライドハンガ（調整部材８）に締結手段９（締結部５）により連結金具７を連結して形成される。 1 to 5 show an embodiment of an inspection port mounting bracket 17 according to the present invention. As shown in FIG. 1, the inspection port mounting bracket 17 is formed by connecting the connecting bracket 7 to the slide hanger (adjusting member 8) by the fastening means 9 (fastening portion 5).

上記スライドハンガ８は、短冊近似の略板状をなし、厚さ１ｍｍ程度の亜鉛メッキ鋼板等の金属板材により形成される。このスライドハンガ８は、中央部に長手方向に沿ってスリット２１が形成された長尺板状の主体部（調整部４）と、固定部２２とを有する。固定部２２は、主体部４の下方、すなわち下端部に配置され、後述する点検口本体３の嵌合片２３を避けるように主体部４の板厚方向にややずれた位置に形成される。この固定部２２は、例えば上述の金属板材を主体部４の下端において傾斜方向に折曲させた後、その先端側を主体部４と並行になるように再度折曲させて形成され、また、固定のために使用される後述の固定ネジ２４を螺合可能な雌ねじ２５がバーリングにより形成される。なお、発明の理解を容易にするために、この説明においては、天井点検口の設置状態を基準にして上下方向を定義する。 The slide hanger 8 has a substantially plate shape approximate to a strip, and is formed of a metal plate material such as a galvanized steel plate having a thickness of about 1 mm. The slide hanger 8 has a long plate-like main body (adjustment unit 4) having a slit 21 formed in the center in the longitudinal direction, and a fixing unit 22. The fixing portion 22 is disposed below the main body portion 4, that is, at the lower end portion, and is formed at a position slightly shifted in the plate thickness direction of the main body portion 4 so as to avoid a fitting piece 23 of the inspection port main body 3 described later. The fixing portion 22 is formed, for example, by bending the above-described metal plate material in the inclined direction at the lower end of the main body portion 4, and then bending the tip end side again in parallel with the main body portion 4. A female screw 25 that can be screwed into a fixing screw 24 (described later) used for fixing is formed by burring. In order to facilitate understanding of the invention, in this description, the vertical direction is defined based on the installation state of the ceiling inspection port.

上記連結金具７は、略コ字形状のクランプ部（連結部２）と、該クランプ部２の一端から延設される取付部２６とを有し、金属板材を折曲等して形成される。クランプ部２は、図２に示すように、後述する取付用チャンネル材（支持基体１）を内部に挿入可能なサイズに形成され、その下部側壁１６には、押圧突起２７ａが形成された押圧片２７が基端部を除く周囲を切り欠いて舌片状に形成される。また、図２、３に示すように、中間壁２ａと上部側壁１４との境界部には、強度を高めるためのリブ２８がプレス加工等により形成される。 The connection fitting 7 has a substantially U-shaped clamp portion (connection portion 2) and an attachment portion 26 extending from one end of the clamp portion 2, and is formed by bending a metal plate material. . As shown in FIG. 2, the clamp portion 2 is formed in a size that allows a mounting channel material (support base 1) to be described later to be inserted therein, and a pressing piece in which a pressing protrusion 27 a is formed on the lower side wall 16. 27 is formed in a tongue-like shape by cutting out the periphery excluding the base end portion. As shown in FIGS. 2 and 3, ribs 28 for increasing the strength are formed by pressing or the like at the boundary between the intermediate wall 2 a and the upper side wall 14.

上記取付部２６は、上述の金属板材をクランプ部２の上部側壁１４の先端からクランプ部２とは反対方向に向かって直交方向に折曲させて形成され、クランプ部２とは反対方向に取付面２６ａを備える。この取付面２６ａの上端には、スライドハンガ８のスリット２１を跨ぐ２条のレール部の各々に対応する突起１０（折曲部６）がプレス加工等により突設される。また、その上端部はクランプ部２の中間壁２ａに向かう方向に折曲されてフランジ２６ｂが形成される。 The mounting portion 26 is formed by bending the metal plate material described above from the tip of the upper side wall 14 of the clamp portion 2 in a direction orthogonal to the clamp portion 2 and mounting in the direction opposite to the clamp portion 2. A surface 26a is provided. At the upper end of the mounting surface 26a, projections 10 (folded portions 6) corresponding to the two rail portions straddling the slit 21 of the slide hanger 8 are provided by pressing or the like. Moreover, the upper end part is bent in the direction toward the intermediate wall 2a of the clamp part 2, and a flange 26b is formed.

さらに、以上の連結金具７の下端部には、ガイド部２９が形成される。このガイド部２９は、上述した下部側壁１６をその中央部において延長させるようにして舌片状に延設され、上述のスライドハンガ８のスリット２１内に挿入されて連結金具７をスライドハンガ８の長手方向に沿ってガイドする。また、その先端部は下方に傾斜して折曲され、後述の取付用チャンネル材１に被せる際のガイドとしても機能する。 Furthermore, a guide portion 29 is formed at the lower end portion of the connecting metal 7 described above. The guide portion 29 extends in the shape of a tongue so as to extend the lower side wall 16 described above at the central portion thereof, and is inserted into the slit 21 of the slide hanger 8 described above to connect the connecting fitting 7 to the slide hanger 8. Guide along the longitudinal direction. Moreover, the front-end | tip part inclines below and bends, and functions also as a guide at the time of covering the channel material 1 for attachment mentioned later.

上記締結手段９は、ボルト３０と蝶ナット１３からなる。このボルト３０は基端部を上述の取付部２６の中央部にかしめ固定され、これにより取付部２６に雄ネジ部（ネジ部１１）が形成される。蝶ナット１３は、把持部１２を手動操作することにより、締結作業時にレンチ等の工具を不要する。なお、取付部２６におけるボルト３０のかしめ固定位置は、上述の突起１０の形成箇所に近接して設定される。 The fastening means 9 includes a bolt 30 and a wing nut 13. The bolt 30 is fixed by caulking the base end portion to the central portion of the mounting portion 26 described above, whereby a male screw portion (screw portion 11) is formed in the mounting portion 26. The wing nut 13 does not require a tool such as a wrench during the fastening operation by manually operating the grip portion 12. It should be noted that the caulking fixing position of the bolt 30 in the mounting portion 26 is set close to the above-described location where the protrusion 10 is formed.

なお、上述のかしめ固定に代えて、取付部２６にバーリング加工により雌ネジを形成し、この雌ネジへの螺合によってボルト３０を取付部２６に取り付けても足りる。 Instead of the above-described caulking, a female screw may be formed on the attachment portion 26 by burring, and the bolt 30 may be attached to the attachment portion 26 by screwing to the female screw.

したがって、点検口取付金具１７は、図２に示すように、スライドハンガ８のスリット２１内に連結金具７のガイド部２９と締結手段９のボルト３０を挿入し、このボルト３０に蝶ナット１３を螺合させて組み立てられ、蝶ナット１３を緩めると、ガイド部２９とボルト３０とがガイドとなって連結金具７をスライドハンガ８の長手方向に沿ってスライド移動させることができる。また、蝶ナット１３を締め付けると、蝶ナット１３とボルト３０とによってスライドハンガ８の主体部４とクランプ金具の取付部２６が挟みつけられるようにして圧接状態で締結されるとともに、取付部２６に形成された突起１０が主体部４に押しつけられて主体部４が折曲する。 Accordingly, as shown in FIG. 2, the inspection port mounting bracket 17 inserts the guide portion 29 of the coupling bracket 7 and the bolt 30 of the fastening means 9 into the slit 21 of the slide hanger 8, and the wing nut 13 is inserted into the bolt 30. When the wing nut 13 is loosened by being screwed together, the guide portion 29 and the bolt 30 serve as a guide, and the connecting fitting 7 can be slid along the longitudinal direction of the slide hanger 8. Further, when the wing nut 13 is tightened, the main portion 4 of the slide hanger 8 and the mounting portion 26 of the clamp fitting are clamped by the wing nut 13 and the bolt 30 and are fastened in a pressure contact state. The formed protrusion 10 is pressed against the main body 4 and the main body 4 is bent.

以上の点検口取付金具１７は、上述した点検口本体３とともに天井点検口を構成する。この点検口本体３は、この実施の形態においては図１（ｃ）および図３に示すように、外枠３１と、この外枠３１内に収容可能な内枠３２とを有する。外枠３１および内枠３２は、アルミニウム等の金属の押し出し成形品からなる枠材３３を矩形に枠組みして形成される。 The above-described inspection port mounting bracket 17 constitutes a ceiling inspection port together with the above-described inspection port main body 3. In this embodiment, the inspection port main body 3 includes an outer frame 31 and an inner frame 32 that can be accommodated in the outer frame 31, as shown in FIGS. The outer frame 31 and the inner frame 32 are formed by rectangularly framing a frame member 33 made of an extruded product of metal such as aluminum.

各枠材３３は、図２および図３に示すように、後述する天井材４０の厚さと同じ程度か、それよりも高く形成される高さ寸法の側壁部３３ａの下端にフランジ部３３ｂを備えて形成され、側壁部３３ａの上縁部から外側に突出する嵌合片２３と、下部のフランジ部３３ｂから突設される嵌合突条３４とにより嵌合部３３ｃが形成される。枠組みは、隣接する枠材３３同士の嵌合部３３ｃにＬ型形状の金属板材からなるコーナーピース３５を嵌合してなされ、このコーナーピース３５は各枠材３３の側壁部３３ａにかしめ固定される。 As shown in FIGS. 2 and 3, each frame member 33 includes a flange portion 33b at the lower end of a side wall portion 33a having a height that is approximately the same as or higher than the thickness of a ceiling member 40 described later. A fitting portion 33c is formed by the fitting piece 23 that is formed and protrudes outward from the upper edge portion of the side wall portion 33a, and the fitting protrusion 34 that projects from the lower flange portion 33b. The frame is formed by fitting a corner piece 35 made of an L-shaped metal plate material to a fitting portion 33c between adjacent frame members 33, and the corner piece 35 is fixed by caulking to a side wall portion 33a of each frame member 33. The

点検口本体３は、図３に示すように、外枠３１内に図示省略の回転機構により内枠３２を垂直回転自在に連結して形成される。また、点検口本体３には図示省略のストッパが設けられ、これにより内枠３２を外枠３１内に収容される回転位置に保持することができる。 As shown in FIG. 3, the inspection port main body 3 is formed in an outer frame 31 by connecting an inner frame 32 so as to be vertically rotatable by a rotation mechanism (not shown). Further, the inspection port main body 3 is provided with a stopper (not shown), whereby the inner frame 32 can be held at the rotational position accommodated in the outer frame 31.

以上の天井点検口の設置方法を以下に説明する。設置に際しては、まず最初に、外枠３１の側壁部３３ａよりもひとまわり大きい開口３６が天井３７に開設されるとともに、この開口３６周りの対向位置に取付用チャンネル材１が設置される。取付用チャンネル材１の設置は、図３に示すように、図外の梁等に固定される天井下地材であるＭバー３８Ａやチャンネル３８Ｂに対し、取付用チャンネル材１を支持固定してなされ、固定状態において取付用チャンネル材１の一対は、図１（ｃ）に示すようにいずれも開放部分を一定の方向に向けた姿勢にされる。 The installation method of the above ceiling inspection opening is demonstrated below. At the time of installation, first, an opening 36 that is slightly larger than the side wall 33 a of the outer frame 31 is opened in the ceiling 37, and the mounting channel material 1 is installed at an opposing position around the opening 36. As shown in FIG. 3, the mounting channel material 1 is installed by supporting and fixing the mounting channel material 1 to the M bar 38A and the channel 38B, which are ceiling base materials fixed to beams or the like not shown. In the fixed state, as shown in FIG. 1 (c), the pair of mounting channel members 1 are both in a posture in which the open portion is directed in a certain direction.

また、上述した天井３７への開口３６の開設と並行して、施工現場に搬入された天井点検口の点検口取付金具１７から蝶ナット１３を取り外し、これにより連結金具７をスライドハンガ８から取り外した上で、このスライドハンガ８を点検口本体３の外枠３１に対して取り付ける。この取り付けは、図２に示すように、外枠３１の側壁部３３ａに形成されたネジ挿通孔４１を貫通して、スライドハンガ８の固定部２２に形成された雌ネジ２５に固定ネジ２４をねじ込むことによりなされる。スライドハンガ８の取り付けは外枠３１の外周面に対してなされ、固定部２２の主体部４からの飛び出し寸法が小さく抑えられることにより、この状態でスライドハンガ８はフランジ部３３ｂよりも内方に位置し、上述した開口３６内に収まることのできる位置をとる。 In parallel with the opening of the opening 37 in the ceiling 37 described above, the wing nut 13 is removed from the inspection port mounting bracket 17 of the ceiling inspection port carried into the construction site, whereby the connecting bracket 7 is removed from the slide hanger 8. In addition, the slide hanger 8 is attached to the outer frame 31 of the inspection port main body 3. As shown in FIG. 2, this attachment is performed by passing a screw insertion hole 41 formed in the side wall portion 33 a of the outer frame 31 and attaching a fixing screw 24 to the female screw 25 formed in the fixing portion 22 of the slide hanger 8. This is done by screwing. The slide hanger 8 is attached to the outer peripheral surface of the outer frame 31, and the projecting dimension of the fixing portion 22 from the main portion 4 is suppressed to be small. In this state, the slide hanger 8 is inward of the flange portion 33b. And a position that can be accommodated in the opening 36 described above.

以上のスライドハンガ８の外枠３１への地組みは、図１（ｃ）に示すように、外枠３１の対向辺に各２箇所、合計４箇所なされる。なお、上記ネジ挿通孔４１は、天井点検口の出荷前に予め工場において外枠３１に開設されるが、現場に搬入してから開設しても足りる。 As shown in FIG. 1 (c), the above-described ground hanger 8 is assembled to the outer frame 31 at two locations on the opposite side of the outer frame 31, for a total of four locations. In addition, although the said screw insertion hole 41 is opened in the outer frame 31 in a factory beforehand before shipment of a ceiling inspection opening, it is sufficient even if it opens after carrying in to the spot.

次に、図４（ａ）に示すように、外枠３１を持ち上げて取付用チャンネル材１の側方にスライドハンガ８を位置させ、この状態で図４（ｂ）に示すように取付用チャンネル材１に対してスライドハンガ８の反対側から連結金具７を被せるようにして装着する。取付用チャンネル材１に対して連結金具７をやや上方から被せるようにするとガイド部２９がガイドとなって装着作業が簡単になる。また、装着状態において、連結金具７は押圧突起２７ａにより取付用チャンネル材１を挟持し、ガタつきが防止される。 Next, as shown in FIG. 4 (a), the outer frame 31 is lifted to place the slide hanger 8 on the side of the mounting channel material 1, and in this state, the mounting channel as shown in FIG. 4 (b). The material 1 is mounted so as to cover the connecting bracket 7 from the opposite side of the slide hanger 8. If the connecting metal fitting 7 is put on the mounting channel material 1 from the upper side, the guide portion 29 serves as a guide to simplify the mounting operation. Further, in the mounted state, the connecting fitting 7 sandwiches the mounting channel material 1 by the pressing protrusion 27a, thereby preventing rattling.

また、この装着に伴って、連結金具７のガイド部２９と、連結金具７に固定されたボルト３０とがスライドハンガ８のスリット２１内に挿入されるため、この後、図５（ａ）に示すように、ボルト３０に対して蝶ナット１３を螺合させる。蝶ナット１３を緩めに締め付ければ、この状態でボルト３０とガイド部２９がガイドとなって外枠３１が上下移動自在に支持されるために、外枠３１のフランジ部３３ｂの背面を天井３７の表面に簡単に位置合わせすることができる。 In addition, along with this mounting, the guide portion 29 of the connecting metal fitting 7 and the bolt 30 fixed to the connecting metal fitting 7 are inserted into the slit 21 of the slide hanger 8, and thereafter, as shown in FIG. As shown, the wing nut 13 is screwed into the bolt 30. If the wing nut 13 is tightened loosely, the bolt 30 and the guide portion 29 serve as a guide in this state, and the outer frame 31 is supported so as to be movable up and down. Therefore, the rear surface of the flange portion 33b of the outer frame 31 is attached to the ceiling 37. Can be easily aligned to the surface of

外枠３１を位置合わせ後、さらに蝶ナット１３を締め付けていくと、次第に突起１０が押しつけられていくことでスライドハンガ８が屈曲し、図５（ｂ）に示すように蝶ナット１３の締結が完了した段階で、蝶ナット１３の上方への移動経路がスライドハンガ８の被折曲部により塞がれる。これにより連結金具７のスライドハンガ８に対する上方への相対移動が、ボルト３０と蝶ナット１３による締結のみならず、被折曲部の蝶ナット１３上面との当接によっても規制され、外枠３１の下がりが良好に防止される。最後に、内枠３２内に天井材４０を取り付ければ、天井点検口の設置作業が完了する。 When the wing nut 13 is further tightened after the outer frame 31 is aligned, the slide hanger 8 bends as the projection 10 is gradually pressed, and the wing nut 13 is fastened as shown in FIG. At the stage of completion, the upward movement path of the wing nut 13 is blocked by the bent portion of the slide hanger 8. As a result, the upward relative movement of the connecting fitting 7 with respect to the slide hanger 8 is restricted not only by the fastening by the bolt 30 and the wing nut 13 but also by the contact of the bent portion with the upper surface of the wing nut 13, and the outer frame 31. The fall of is well prevented. Finally, if the ceiling material 40 is attached in the inner frame 32, the installation work of the ceiling inspection port is completed.

図６および図７に本発明の変形例を示す。なお、この変形例および後述する他の変形例において、上述した実施の形態と同一の要素は図中に同一の符号を付して説明を省略する。この変形例は、最後に内枠３２に取り付けられる天井材４０の荷重によって点検口本体３がやや下がってしまった場合の補助的な位置の微調整機能を加えたものである。 6 and 7 show a modification of the present invention. In this modified example and other modified examples to be described later, the same elements as those in the above-described embodiment are denoted by the same reference numerals in the drawings, and description thereof is omitted. In this modification, an auxiliary position fine adjustment function is added when the inspection port body 3 is slightly lowered due to the load of the ceiling member 40 that is finally attached to the inner frame 32.

この変形例において、クランプ部２の上部側壁１４にはバーリング加工を利用して雌ネジ１５が形成されるとともに、下部側壁１６は、基端部が上方に傾斜して形成される。また、フランジ２６ｂには、切欠４４が先端縁を窪ませて形成される。 In this modified example, an internal thread 15 is formed on the upper side wall 14 of the clamp portion 2 by using burring, and the lower side wall 16 is formed with a base end inclined upward. In addition, a notch 44 is formed in the flange 26b with its leading edge recessed.

上述のように内枠３２に天井材４０を取り付けた際に点検口本体３がやや下がってしまったら、図７（ａ）に示すように雌ネジ１５にネジ４３を螺合する。この後、ネジ４３を回すと、雌ネジ１５に送られるようにしてネジ４３がクランプ部２の内部に進入し、取付用チャンネル材１に押し下げる方向の力を作用させる。取付用チャンネル材１は図示省略のＭバー３８Ａ等により下方への移動を規制されているために、上述の押し下げる方向の力は、雌ネジ４２を介して連結金具７、すなわち点検口取付金具１７を押し上げる方向の力に変換され、これにより図７（ｂ）に示すように、点検口取付金具１７が上方に移動する。また、この移動は、下部側壁１６の上方に傾斜する基端部が取付用チャンネル材１の底面に沿う水平姿勢まで変形することにより許容される。 If the inspection port main body 3 is slightly lowered when the ceiling member 40 is attached to the inner frame 32 as described above, the screw 43 is screwed into the female screw 15 as shown in FIG. Thereafter, when the screw 43 is turned, the screw 43 enters the inside of the clamp portion 2 so as to be sent to the female screw 15, and a force in a direction to push down is applied to the mounting channel material 1. Since the mounting channel member 1 is restricted from moving downward by an unillustrated M bar 38A or the like, the force in the above-described depressing direction is applied to the connecting bracket 7, that is, the inspection port mounting bracket 17 via the female screw 42. As a result, the inspection port mounting bracket 17 moves upward as shown in FIG. 7B. Further, this movement is allowed by deforming the base end inclined above the lower side wall 16 to a horizontal posture along the bottom surface of the mounting channel member 1.

したがってネジ４３を回すことにより、外枠３１の天井３７に対する下がりを解消することができる。また、上述した蝶ナット１３と被折曲部との位置関係は、以上の補助的な位置の微調整機能とは無関係に維持されるために、位置微調整後においても連結金具７のスライドハンガ８に対する上方への相対移動が良好に規制され、外枠３１がしっかりと吊下支持される。さらに、上述の切欠４４により、ネジ４３との干渉が避けられるために、図７（ｂ）に示す状態よりもさらにネジ４３を雌ネジ１５にねじ込むことにより点検口取付金具１７を取付用チャンネル材１に対してさらに上方に相対移動させることが可能である上に、ネジ４３の全長をより短くできるなど設計上の自由度も高められる。なお、上述のネジ４３として蝶ネジ等の把持部１２を備えたものを利用してもよく、この場合、上述した蝶ナット１３同様、作業時に工具を不要にすることができる。 Therefore, the lowering of the outer frame 31 with respect to the ceiling 37 can be eliminated by turning the screw 43. In addition, since the positional relationship between the wing nut 13 and the bent portion described above is maintained regardless of the above-described fine adjustment function of the auxiliary position, the slide hanger of the connecting bracket 7 even after the fine position adjustment. The upper relative movement with respect to 8 is well regulated, and the outer frame 31 is firmly suspended and supported. Further, since the above-described notch 44 prevents interference with the screw 43, the inspection port mounting bracket 17 can be attached to the mounting channel member 17 by screwing the screw 43 further into the female screw 15 than in the state shown in FIG. In addition to being able to move relative to 1 further upward, the overall length of the screw 43 can be made shorter, and the degree of freedom in design can be increased. In addition, you may utilize what provided the holding parts 12, such as a wing screw, as the above-mentioned screw 43, and a tool can be made unnecessary at the time of work like the wing nut 13 mentioned above.

図８に他の変形例を示す。この変形例において、連結金具７のクランプ部２は、その中間壁１ａが取付用チャンネル材１のフランジ１ｂの厚さよりもやや大きい高さ寸法にされ、例えばプレス加工により形成される。また、取付部２６はフランジ２６ｂを省略して構成され、さらに、スライドハンガ８は、主体部４と固定部２２を同一面状に配置した平らな板状をなす。 FIG. 8 shows another modification. In this modification, the clamp part 2 of the connecting metal 7 is formed such that the intermediate wall 1a is slightly larger in height than the thickness of the flange 1b of the mounting channel member 1 and is, for example, pressed. Further, the mounting portion 26 is configured by omitting the flange 26b, and the slide hanger 8 has a flat plate shape in which the main body portion 4 and the fixing portion 22 are arranged on the same plane.

したがって、この変形例においては、取付用チャンネル材１が開放部分を開口３６の外側に向け、言い換えればウェブ１ａをスライドハンガ８に合わせる姿勢でチャンネル３８Ｂ等に取り付けられ、この状態で点検口本体３の外側に向かって突出する上方のフランジ１ｂの先端部にクランプ部２を係止して連結金具７が取り付けられる。 Therefore, in this modification, the attachment channel member 1 is attached to the channel 38B or the like in such a posture that the open portion is directed to the outside of the opening 36, in other words, the web 1a is aligned with the slide hanger 8, and in this state, the inspection port body 3 is attached. The connecting fitting 7 is attached by locking the clamp portion 2 to the tip portion of the upper flange 1b protruding outward.

図９にさらに他の変形例を示す。この変形例において、クランプ部２は、フランジ１ｂへの係止部が折り曲げ加工により鉤状に形成される。また、スライドハンガ８の固定部２２は、外枠３１の内壁面に取り付けられ、さらに、固定部２２は、板状に形成されて嵌合部３３ｃに嵌合固定される。 FIG. 9 shows still another modification. In this modified example, the clamp part 2 is formed in a hook shape by bending the engaging part to the flange 1b. The fixed portion 22 of the slide hanger 8 is attached to the inner wall surface of the outer frame 31, and the fixed portion 22 is formed in a plate shape and is fitted and fixed to the fitting portion 33c.

なお、以上においては、点検口本体３を天井点検口として設置する場合を示したが、壁点検口や床点検口として設置することも可能であり、この場合、主体部４の一端から直交方向に固定部２２を延設してスライドハンガ８を構成すれば足りる。また、点検口本体３は、外枠３１等にフランジ部３３ｂを形成せずに構成したり、さらには、内枠３２を省略して外枠３１のみで構成することも可能であり、この場合には、側壁部３３ａから一対の嵌合片２３を側方に突設して嵌合部３３ｃを形成したり、あるいは、外枠３１のフランジ部３３ｂの内向き突出寸法を大きくし、これに蓋材となる天井材４０の周縁部を支持させれば足りる。 In the above, the case where the inspection port main body 3 is installed as a ceiling inspection port is shown, but it is also possible to install it as a wall inspection port or a floor inspection port. It suffices to form the slide hanger 8 by extending the fixing portion 22. Further, the inspection port main body 3 can be configured without forming the flange portion 33b in the outer frame 31 or the like, or can be configured by only the outer frame 31 by omitting the inner frame 32. For example, a pair of fitting pieces 23 project sideways from the side wall portion 33a to form a fitting portion 33c, or the inward protruding dimension of the flange portion 33b of the outer frame 31 is increased. It is sufficient to support the peripheral edge portion of the ceiling material 40 serving as a lid material.

さらに、以上においては、ボルト３０として頭部のあるものを用いる場合を示したが、スタッドボルトを用いることも可能であり、この場合、その一端部を取付部２６にかしめ固定等すれば足りる。 Furthermore, in the above description, the bolt 30 having a head is used. However, a stud bolt can also be used. In this case, it is sufficient that one end thereof is caulked and fixed to the mounting portion 26.

１支持基体
２連結部
３点検口本体
４調整部
５締結部
６折曲部
７連結金具
８調整部材
９締結手段
１０突起
１１ネジ部
１２把持部
１３ナット
１４上部側壁
１５雌ネジ
１６下部側壁
１７点検口取付金具 DESCRIPTION OF SYMBOLS 1 Support base | substrate 2 Connection part 3 Inspection port main body 4 Adjustment part 5 Fastening part 6 Bending part 7 Connection metal fitting 8 Adjustment member 9 Fastening means 10 Protrusion 11 Screw part 12 Grasp part 13 Nut 14 Upper side wall 15 Female screw 16 Lower side wall 17 Inspection Mouth mounting bracket

Claims

A connecting portion connected to the support base;
A long adjusting unit having one end connected to the inspection port body and the other end connected to the connecting unit in a variable position;
A fastening portion for fastening the adjusting portion and the connecting portion in a pressure contact state;
An inspection port mounting bracket in which a bent portion is formed that is pressed and bent using a fastening force that brings the adjusting portion into a pressure contact state of the fastening portion.

A coupling fitting coupled to the support base;
A long adjustment member having one end connected to the inspection port main body and the other end connected to the connecting fitting in a variable position;
Fastening means for fastening the adjusting member and the connecting fitting in a pressure contact state,
An inspection port mounting bracket that is provided with a protrusion that protrudes in the press-contact direction and bends the adjustment member by using a fastening force that brings the fastening means into a press-contact state.

The fastening means includes
A threaded portion integrally formed with the connecting bracket;
The inspection port mounting bracket according to claim 2, comprising a nut or a bolt formed with a grip portion and screwed into the screw portion.

4. The inspection port according to claim 2, wherein the connection fitting is formed in a substantially U-shaped cross-sectional shape into which a support base made of a channel material can be inserted, and has an open portion closed by an adjustment member. Mounting bracket.

The adjustment member supports the inspection port main body suspended from the support base with the longitudinal direction directed vertically.
The inspection port mounting bracket according to claim 4, wherein the connecting portion is formed with a female screw passing through the upper side wall, and the lower side wall is formed so that the inner space can be expanded in the vertical direction by deformation.

The inspection port mounting bracket according to any one of claims 1 to 5,
An inspection port having an inspection port body supported by the support base by the inspection port mounting bracket.