JP3310535B2 - Ceiling access door - Google Patents
Ceiling access doorInfo
- Publication number
- JP3310535B2 JP3310535B2 JP07073396A JP7073396A JP3310535B2 JP 3310535 B2 JP3310535 B2 JP 3310535B2 JP 07073396 A JP07073396 A JP 07073396A JP 7073396 A JP7073396 A JP 7073396A JP 3310535 B2 JP3310535 B2 JP 3310535B2
- Authority
- JP
- Japan
- Prior art keywords
- opening
- opening frame
- mounting bracket
- ceiling
- frame
- 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.)
- Expired - Fee Related
Links
Landscapes
- Door And Window Frames Mounted To Openings (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、天井裏を点検した
りするために天井に設ける天井点検口に関し、詳しくは
天井の開口に開口枠を取り付ける構造に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceiling inspection port provided on a ceiling for inspecting a space above a ceiling, and more particularly to a structure for attaching an opening frame to an opening of the ceiling.
【０００２】[0002]
【従来の技術】天井点検口は天井に設けた開口に開口枠
を嵌め込んで取り付け、開口枠に開閉自在な点検蓋を取
り付けて形成されている。天井１に設けた開口２に開口
枠３を取り付ける構造は図１１に示すようになってい
る。開口２に開口枠３を嵌め込んであり、横片４ａと縦
片４ｂとよりなる逆Ｌ字状の取り付け金具４は縦片４ｂ
の下部を開口枠３の上部に一体に結合してあり、取り付
け金具４の横片４ａを開口縁の根太５の上面上に位置さ
せ、取り付け金具４の横片４ａに横片４ａと直交するよ
うに螺合したボルト６の下端を根太５の上面に当接して
ある。2. Description of the Related Art A ceiling inspection opening is formed by fitting an opening frame into an opening provided in a ceiling and attaching an openable and closable inspection lid to the opening frame. The structure for attaching the opening frame 3 to the opening 2 provided in the ceiling 1 is as shown in FIG. An opening frame 3 is fitted into the opening 2, and an inverted L-shaped mounting bracket 4 composed of a horizontal piece 4a and a vertical piece 4b is a vertical piece 4b.
Is integrally connected to the upper part of the opening frame 3, and the horizontal piece 4 a of the mounting bracket 4 is positioned on the upper surface of the joist 5 of the opening edge, and is orthogonal to the horizontal piece 4 a of the mounting bracket 4. The lower end of the bolt 6 screwed as described above is in contact with the upper surface of the joist 5.
【０００３】[0003]
【発明が解決しようとする課題】ところで、天井点検口
を施工する場所によっては、開口縁の根太５の高さが図
１１（ａ）（ｂ）に示すように異なる場合が多く、この
場合、ボルト６を上下させることにより調整して取り付
けている。ところが、根太５の高さの大きな変化に対応
するためにボルト６の長さを長くしなければならない
が、ボルト６の長さを長くすると、取り付けが不安定と
なるという問題がある。By the way, depending on the place where the ceiling inspection opening is constructed, the height of the joist 5 at the opening edge is often different as shown in FIGS. 11 (a) and 11 (b). The bolts 6 are adjusted and mounted by moving them up and down. However, in order to cope with a large change in the height of the joist 5, the length of the bolt 6 must be increased. However, if the length of the bolt 6 is increased, there is a problem that the mounting becomes unstable.
【０００４】また開口枠３を取り付ける場合、開口２に
開口枠３を嵌め込んでから取り付け金具４で取り付ける
が、開口枠３を開口２に嵌め込んだ状態で開口枠３を支
えながら取り付け金具４による取り付けを行わなければ
ならなく、取り付け施工がしにくいという問題がある。
本発明は叙述の点に鑑みてなされたものであって、開口
枠の取り付けを安定し、また取り付け施工を容易にする
ことを課題とする。When the opening frame 3 is mounted, the opening frame 3 is fitted into the opening 2 and then attached with the mounting bracket 4, but the mounting bracket 4 is supported while supporting the opening frame 3 with the opening frame 3 fitted into the opening 2. There is a problem that mounting must be performed, and mounting is difficult.
The present invention has been made in view of the above description, and has as its object to stably mount an opening frame and facilitate installation work.
【０００５】[0005]
【課題を解決するための手段】上記課題を解決するため
に本発明の天井点検口は、天井１に設けた開口２に開口
枠３を嵌め込んで取り付け、開口枠３に開閉自在に点検
蓋７を取り付けたものにおいて、横片４ａと縦片４ｂよ
りなる逆Ｌ字状の取り付け金具４を開口枠３の適所に配
置し、開口枠３の上端に略逆Ｌ字状のフランジ３ａを形
成し、上記フランジ３ａに設けた切り欠き８に取り付け
金具４の縦片４ｂを挿通し、縦片４ｂの両側に上記フラ
ンジ３ａの切り欠き８の両側に係合し得る係合突起９を
上下に複数個設けると共にフランジ３ａに係合させる係
合突起９を変えることで取り付け金具４の上下高さを調
整自在にし、取り付け金具４の横片４ａに横片４ａと直
交するように螺合したボルト６の下端を天井１の開口縁
の根太５の上面に当接して成ることを特徴とする。この
場合、根太５の高さが変わっても、切り欠き８の両側の
フランジ３ａに係合する係合突起９を変えることで、取
り付け金具４の横片４ａの高さを変え、ボルト６を上下
させてボルト６の下端を根太５に当接できる。このた
め、ボルト６の長さを長くしなくても根太５の高さの変
化に対応できて開口枠３の取り付けが安定する。In order to solve the above-mentioned problems, a ceiling inspection port of the present invention is provided by fitting an opening frame 3 into an opening 2 provided in a ceiling 1 and opening and closing the opening frame 3 so as to be freely opened and closed. 7, an inverted L-shaped mounting bracket 4 composed of a horizontal piece 4a and a vertical piece 4b is arranged at an appropriate position of the opening frame 3, and a substantially inverted L-shaped flange 3a is formed at the upper end of the opening frame 3.
Form, inserting the longitudinal elements 4b of the bracket 4 mounted on the notches 8 provided in the flange 3a, on both sides of the longitudinal elements 4b of the engaging projection 9 which can engage on both sides of the notch 8 of the flange 3a vertically And the height of the mounting bracket 4 can be adjusted freely by changing the engaging projections 9 to be engaged with the flange 3a, and screwed to the horizontal piece 4a of the mounting bracket 4 so as to be orthogonal to the horizontal piece 4a. The lower end of the bolt 6 is in contact with the upper surface of the joist 5 at the opening edge of the ceiling 1. In this case, even if the height of the joist 5 changes, the height of the horizontal piece 4a of the mounting bracket 4 is changed by changing the engagement projection 9 that engages with the flange 3a on both sides of the notch 8, thereby changing the bolt 6 The lower end of the bolt 6 can be brought into contact with the joist 5 by moving it up and down. Therefore, it is possible to cope with a change in the height of the joist 5 without increasing the length of the bolt 6, and the mounting of the opening frame 3 is stabilized.
【０００６】また開口枠３の外面に開口枠３を開口２に
嵌め込んだとき開口縁に食い込んで開口枠３を仮止めす
る係止突部１０を設けて成ることを特徴とすることも好
ましい。この場合、開口２に開口枠３を嵌め込んだとき
係止突部１０が開口縁に食い込んで開口枠３が仮止めさ
れ、開口枠３を支えなくても取り付け金具４で開口枠３
を取り付けることができる。このため開口枠３の取り付
け施工性が向上する。Further, it is preferable that a locking projection 10 is provided on the outer surface of the opening frame 3 so as to bite into the opening edge when the opening frame 3 is fitted into the opening 2 to temporarily fix the opening frame 3. . In this case, when the opening frame 3 is fitted into the opening 2, the locking projection 10 bites into the opening edge and the opening frame 3 is temporarily fixed. Even if the opening frame 3 is not supported, the mounting bracket 4 is used.
Can be attached. For this reason, the mounting workability of the opening frame 3 is improved.
【０００７】また取り付け金具４の縦片４ｂに縦片４ｂ
を開口縁にねじ止めするための取り付け孔１１を設けて
成ることを特徴とすることも好ましい。この場合、取り
付け孔１１からねじを挿通して縦片４ｂをねじで根太５
に取り付けることができて取り付け強度が向上する。The vertical piece 4b of the mounting bracket 4
It is also preferable to provide a mounting hole 11 for screwing the screw to the opening edge. In this case, a screw is inserted through the mounting hole 11 and the vertical piece 4b is
The mounting strength can be improved.
【０００８】[0008]
【発明の実施の形態】天井１には図５に示すように矩形
状の開口２を穿孔してある。この開口２の周囲の開口縁
には根太５を全周に亙って装着してあり、根太５を天井
材１５に一体化してある。開口枠３は開口縁に沿う矩形
状に形成されており、上端には内方に突出する略逆Ｌ字
状のフランジ３ａと外方に突出する水平なフランジ３ｂ
を設けてあり、下端には外方に突出する水平なフランジ
３ｃを設けてある。また開口枠３には外方に向けて斜め
下方に突出する切り起こし状の係止突部１０を設けてあ
る。また開口枠３のフランジ３ａには後述する取り付け
金具４を取り付ける位置と対応する位置で切り欠き８を
設けてあり、切り欠き８の幅を取り付け金具４の縦片４
ｂの幅と略同じ幅にしてある。このように構成された開
口枠３は図６（ａ）に示すように天井１の下方から開口
２に嵌め込まれるが、開口２に開口枠３が嵌め込まれた
とき、図６（ｂ）に示すように係止突部１０が開口縁に
食い込んで係止し、開口枠３が仮止めされる。このよう
に開口枠３を仮止めすることで開口枠３を取り付け金具
４で取り付けるとき開口枠３を支える必要がなくて取り
付け施工性が向上する。DESCRIPTION OF THE PREFERRED EMBODIMENTS A ceiling 1 has a rectangular opening 2 as shown in FIG. A joist 5 is mounted around the entire periphery of the opening 2 around the opening 2, and the joist 5 is integrated with a ceiling material 15. The opening frame 3 is formed in a rectangular shape along the opening edge, and has a substantially inverted L-shaped flange 3a projecting inward and a horizontal flange 3b projecting outward at the upper end.
And a horizontal flange 3c protruding outward at the lower end. Further, the opening frame 3 is provided with a cut-and-raised locking projection 10 projecting obliquely downward toward the outside. The flange 3a of the opening frame 3 is provided with a notch 8 at a position corresponding to a position at which a mounting bracket 4 to be described later is mounted.
The width is substantially the same as the width of b. The opening frame 3 configured as described above is fitted into the opening 2 from below the ceiling 1 as shown in FIG. 6A, and when the opening frame 3 is fitted into the opening 2 as shown in FIG. As described above, the locking projection 10 bites into the opening edge and locks , and the opening frame 3 is temporarily fixed. By temporarily fixing the opening frame 3 in this manner, it is not necessary to support the opening frame 3 when attaching the opening frame 3 with the mounting bracket 4, and the mounting workability is improved.
【０００９】取り付け金具４は図３に示すように横片４
ａと縦片４ｂとで略逆Ｌ字状に形成されている。横片４
ａには補強リブ１２を設けてあると共に中央に雌ねじ孔
１３を設けてあり、蝶ボルトのようなボルト６を雌ねじ
孔１３に螺合してある。縦片４ｂの両側には夫々複数の
係合突起９を突設してあり、複数の係合突起９を上下に
等間隔に配置してある。また縦片４ｂの上部には取り付
け孔１１を穿孔してある。この取り付け金具４は図７
（ａ）のように開口枠３の切り欠き８と対応する位置に
配置され、図４に示すように取り付け金具４の縦片４ｂ
が切り欠き８に挿通されると共に適宜の係合突起９が切
り欠き８の両側のフランジ３ａに係合されて開口枠３に
取り付け金具４が取り付けられる。この取り付け金具４
を開口枠３に取り付けるとき、図１のように根太５の高
さが低いと、上に位置する係合突起９をフランジ３ａに
係合して取り付けられ、図２のように根太５の高さが高
いと、下に位置する係合突起９をフランジ３ａに係合し
て取り付けられる。そして根太５の上に位置する横片４
ａのボルト６を操作してボルト６の下端を根太５に当接
し、図１、図２、図７（ｂ）に示すように取り付けられ
る。このように取り付け金具４で開口枠３を取り付けた
状態で必要に応じて取り付け孔１１から根太５にねじを
打入して縦片４ｂが根太５に取り付けられる。このよう
に縦片４ｂを根太５にねじの打入にて取り付けると、開
口枠３が一層強固に取り付けられる。[0009] As shown in FIG.
a and the vertical piece 4b form a substantially inverted L-shape. Side piece 4
A is provided with a reinforcing rib 12 and a female screw hole 13 in the center, and a bolt 6 such as a wing bolt is screwed into the female screw hole 13. A plurality of engaging projections 9 are provided on both sides of the vertical piece 4b, respectively, and the plurality of engaging projections 9 are vertically arranged at equal intervals. A mounting hole 11 is formed in the upper part of the vertical piece 4b. This mounting bracket 4 is shown in FIG.
As shown in FIG. 4A, the vertical piece 4b of the mounting bracket 4 is arranged at a position corresponding to the notch 8 of the opening frame 3 as shown in FIG.
Is inserted into the notch 8, and an appropriate engaging projection 9 is engaged with the flange 3 a on both sides of the notch 8, and the mounting bracket 4 is attached to the opening frame 3. This mounting bracket 4
When the joist 5 is attached to the opening frame 3 and the height of the joist 5 is low as shown in FIG. 1, the engaging protrusion 9 located above is engaged with the flange 3a and attached. As shown in FIG. When the height is high, the lower engaging projection 9 is engaged with the flange 3a and attached. And the horizontal piece 4 located on the joist 5
The lower end of the bolt 6 abuts on the joist 5 by operating the bolt 6a, and is attached as shown in FIGS. 1, 2 and 7 (b). In this manner, with the mounting frame 4 attached to the opening frame 3, screws are driven into the joists 5 from the mounting holes 11 as necessary, and the vertical pieces 4 b are attached to the joists 5. When the vertical piece 4b is attached to the joist 5 by screwing in this way, the opening frame 3 is attached more firmly.
【００１０】点検蓋７は周囲の矩形状の蓋枠１６と、矩
形板状で天井材１５と同じ外観の面材１７とで形成され
ている。蓋枠１６内には図８（ａ）（ｂ）のように面材
１７が嵌め込まれ、図８（ｃ）に示すようにＬ字状の固
定金具２４をねじ１８で蓋枠１６に固定することで面材
１７が蓋枠１６に一体化されて点検蓋７が組み立てられ
る。点検蓋７は図９（ａ）に示すように開口枠３内に嵌
め込まれ、図９（ｂ）に示すように開口枠２に設けたピ
ン受け１９に点検蓋７のピン２０が回動自在に嵌め込ま
れて図９（ｃ）に示すように点検蓋７が開閉自在に取り
付けられる。また点検蓋７には図１０に示すようにピン
２０と反対側に弾性片よりなる係合部材２２が取り付け
られており、係合部材２２が開口枠３の下端の内周の係
止縁３ｄに係脱自在になっている。係合部材２２の下端
には操作部２３が設けられている。また図１で２５は点
検蓋７が必要以上に上方に回動するのを阻止するストッ
パーである。The inspection lid 7 is formed of a surrounding rectangular lid frame 16 and a face plate 17 having a rectangular plate shape and the same appearance as the ceiling material 15. As shown in FIGS. 8A and 8B, a face material 17 is fitted into the lid frame 16, and an L-shaped fixing bracket 24 is fixed to the lid frame 16 with screws 18 as shown in FIG. Thereby, the face material 17 is integrated with the lid frame 16 and the inspection lid 7 is assembled. The inspection lid 7 is fitted into the opening frame 3 as shown in FIG. 9A, and the pin 20 of the inspection lid 7 is rotatable in a pin receiver 19 provided in the opening frame 2 as shown in FIG. As shown in FIG. 9 (c), the inspection lid 7 is attached so as to be openable and closable. As shown in FIG. 10, an engagement member 22 made of an elastic piece is attached to the inspection lid 7 on the opposite side to the pin 20, and the engagement member 22 is a locking edge 3 d on the inner periphery of the lower end of the opening frame 3. It is detachable. An operating section 23 is provided at a lower end of the engaging member 22. In FIG. 1, reference numeral 25 denotes a stopper for preventing the inspection lid 7 from rotating upward more than necessary.
【００１１】[0011]
【発明の効果】本発明は叙述のように横片と縦片よりな
る逆Ｌ字状の取り付け金具を開口枠の適所に配置し、開
口枠の上端に略逆Ｌ字状のフランジを形成し、上記フラ
ンジに設けた切り欠きに取り付け金具の縦片を挿通し、
縦片の両側に上記フランジの切り欠きの両側に係合し得
る係合突起を上下に複数個設けると共にフランジに係合
させる係合突起を変えることで取り付け金具の上下高さ
を調整自在にし、取り付け金具の横片に横片と直交する
ように螺合したボルトの下端を天井の開口縁の根太の上
面に当接しているので、根太の高さが変わっても、切り
欠きの両側のフランジに係合する係合突起を変えること
で、取り付け金具の横片の高さを変え、ボルトを上下さ
せてボルトの下端を根太に当接できるものであって、従
来のようにボルトの長さを長くしなくても根太の高さの
変化に対応できて開口枠の取り付けが安定するものであ
る。According to the present invention places the inverted L-shaped mounting bracket consisting of the crosspiece and the vertical piece as narrative in place of the opening frame, open
A substantially inverted L-shaped flange is formed at the upper end of the mouth frame, and a vertical piece of the mounting bracket is inserted through a notch provided in the flange ,
On the both sides of the vertical piece, a plurality of engaging projections that can be engaged on both sides of the notch of the flange are provided vertically, and the height of the mounting bracket can be adjusted freely by changing the engaging projection to be engaged with the flange, The lower end of the bolt, which is screwed to the horizontal piece of the mounting bracket so as to be perpendicular to the horizontal piece, is in contact with the upper surface of the joist at the opening edge of the ceiling, so even if the height of the joist changes, the flanges on both sides of the cut By changing the height of the horizontal piece of the mounting bracket by changing the engagement projection that engages with the bolt, the lower end of the bolt can be brought into contact with the joist by moving the bolt up and down, as in the conventional case. This makes it possible to cope with a change in the height of the joist without increasing the length of the joist, so that the mounting of the opening frame is stabilized.
【００１２】また本発明の請求項２記載の発明にあって
は、開口枠の外面に開口枠を開口に嵌め込んだとき開口
縁に食い込んで開口枠を仮止めする係止突部を設けてい
るので、開口に開口枠を嵌め込んだとき係止突部が開口
縁に食い込んで開口枠が仮止めされるものであって、開
口枠を支えなくても取り付け金具で開口枠を取り付ける
ことができて開口枠の取り付け施工性が向上するもので
ある。According to the invention of claim 2 of the present invention, when the opening frame is fitted into the opening on the outer surface of the opening frame, a locking projection is provided which bites into the opening edge and temporarily fixes the opening frame. Therefore, when the opening frame is fitted into the opening, the locking projection bites into the opening edge and the opening frame is temporarily fixed, and it is possible to attach the opening frame with the mounting bracket without supporting the opening frame. As a result, the mounting workability of the opening frame is improved.
【００１３】また本発明の請求項３記載の発明にあって
は、取り付け金具の縦片に縦片を開口縁にねじ止めする
ための取り付け孔を設けてあるので、取り付け孔からね
じを挿通して縦片をねじで根太に取り付けることができ
て開口枠の取り付け強度が一層向上するものである。In the invention according to claim 3 of the present invention, since a mounting hole for screwing the vertical piece to the opening edge is provided in the vertical piece of the mounting bracket, a screw is inserted through the mounting hole. Thus, the vertical pieces can be attached to the joists with screws, and the attachment strength of the opening frame is further improved.
【図１】本発明の実施の形態の天井点検口の一例を示
し、（ａ）は正面から見た断面図、（ｂ）は側面から見
た断面図である。FIG. 1 shows an example of a ceiling inspection port according to an embodiment of the present invention, in which (a) is a cross-sectional view as viewed from the front and (b) is a cross-sectional view as viewed from a side.
【図２】図１とは根太の高さが変わった場合の断面図で
ある。FIG. 2 is a cross-sectional view when FIG. 1 changes the height of a joist;
【図３】同上の取り付け金具を示し、（ａ）は正面図、
（ｂ）は側面図、（ｃ）はボルトを外した状態の平面図
である。3A and 3B show a mounting bracket of the embodiment, and FIG.
(B) is a side view, and (c) is a plan view in a state where a bolt is removed.
【図４】同上の開口枠に取り付け金具を取り付ける状態
を説明する斜視図である。FIG. 4 is a perspective view illustrating a state in which a mounting bracket is mounted on the opening frame according to the first embodiment.
【図５】同上の天井に開口を設けた状態を示す斜視図で
ある。FIG. 5 is a perspective view showing a state in which an opening is provided in the ceiling of the above.
【図６】（ａ）は同上の開口に開口枠を嵌め込む状態を
示す斜視図、（ｂ）は開口に開口枠を嵌め込んだ状態を
示す断面図である。FIG. 6A is a perspective view showing a state in which an opening frame is fitted in the opening, and FIG. 6B is a cross-sectional view showing a state in which the opening frame is fitted in the opening.
【図７】（ａ）は開口枠を取り付け金具で取り付けた状
態を示す斜視図、（ｂ）は開口枠を取り付け金具で取り
付けた状態を示す断面図である。FIG. 7A is a perspective view showing a state in which an opening frame is attached with a fitting, and FIG. 7B is a cross-sectional view showing a state in which the opening frame is attached with a fitting.
【図８】（ａ）（ｂ）は点検蓋を組み立てる状態を示す
斜視図、（ｃ）は面材を蓋枠に固定する状態を示す斜視
図である。FIGS. 8A and 8B are perspective views showing a state where an inspection lid is assembled, and FIG. 8C is a perspective view showing a state where a face material is fixed to a lid frame.
【図９】（ａ）は開口枠に点検蓋を取り付ける状態を示
す斜視図、（ｂ）は点検蓋を回動自在に取り付ける状態
を説明する説明図、（ｃ）は点検蓋の開閉を説明する説
明図である。9A is a perspective view illustrating a state in which the inspection lid is attached to the opening frame, FIG. 9B is an explanatory diagram illustrating a state in which the inspection lid is rotatably attached, and FIG. 9C is a diagram illustrating opening and closing of the inspection lid. FIG.
【図１０】（ａ）は点検蓋を閉じた状態の斜視図、
（ｂ）は点検蓋の係合部材を説明する説明図である。FIG. 10A is a perspective view of a state in which an inspection lid is closed,
(B) is an explanatory view for explaining an engagement member of the inspection lid.
【図１１】従来例を示し、（ａ）は高さの低い根太に開
口枠を取り付けた状態の断面図、（ｂ）は高さの高い根
太に開口枠を取り付けた状態の断面図である。11A and 11B show a conventional example, in which FIG. 11A is a sectional view showing a state in which an opening frame is attached to a low timber joist, and FIG. 11B is a sectional view showing a state in which an opening frame is attached to a tall tall joist. .
１ 天井 ２ 開口 ３ 開口枠 ３ａ フランジ ４ 取り付け金具 ４ａ 横片 ４ｂ 縦片 ５ 根太 ６ ボルト ８ 切り欠き ９ 係合突起 １０ 係止突部 DESCRIPTION OF SYMBOLS 1 Ceiling 2 Opening 3 Opening frame 3a Flange 4 Mounting bracket 4a Horizontal piece 4b Vertical piece 5 Joist 6 Bolt 8 Notch 9 Engagement projection 10 Locking projection
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭51−103633（ＪＰ，Ａ) 特開 昭58−41156（ＪＰ，Ａ) 特開 昭58−41154（ＪＰ，Ａ) 実開 昭58−137796（ＪＰ，Ｕ) 実開 昭58−171437（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) E04F 19/08 101 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-51-103633 (JP, A) JP-A-58-41156 (JP, A) JP-A-58-41154 (JP, A) 137796 (JP, U) Actually open 58-171437 (JP, U) (58) Fields investigated (Int. Cl. 7 , DB name) E04F 19/08 101
Claims (3)
取り付け、開口枠に開閉自在に点検蓋を取り付けた天井
点検口において、横片と縦片よりなる逆Ｌ字状の取り付
け金具を開口枠の適所に配置し、開口枠の上端に略逆Ｌ
字状のフランジを形成し、上記フランジに設けた切り欠
きに取り付け金具の縦片を挿通し、縦片の両側に上記フ
ランジの切り欠きの両側に係合し得る係合突起を上下に
複数個設けると共にフランジに係合させる係合突起を変
えることで取り付け金具の上下高さを調整自在にし、取
り付け金具の横片に横片と直交するように螺合したボル
トの下端を天井の開口縁の根太の上面に当接して成るこ
とを特徴とする天井点検口。1. An inverted L-shaped mounting bracket consisting of a horizontal piece and a vertical piece is provided at a ceiling inspection opening in which an opening frame is fitted into an opening provided in a ceiling and attached thereto, and an inspection lid is attached to the opening frame so as to be openable and closable. Arranged in the proper position of the opening frame, and approximately inverted L
Forming a shaped flange, inserting the vertical piece of metal attached to the notches provided in the flange, a plurality of engagement projections up and down both sides of the longitudinal strip to engage the opposite sides of the notch of the flange The vertical height of the mounting bracket is made adjustable by changing the engaging projections that are provided and engaged with the flange, and the lower ends of the bolts screwed to the horizontal pieces of the mounting bracket so as to be orthogonal to the horizontal pieces are attached to the opening edge of the ceiling. A ceiling inspection door that is formed in contact with the top of the joist.
だとき開口縁に食い込んで開口枠を仮止めする係止突部
を設けて成ることを特徴とする請求項１記載の天井点検
口。2. The ceiling inspection according to claim 1, wherein a locking projection is provided on the outer surface of the opening frame so as to bite into the opening edge when the opening frame is fitted into the opening and temporarily fix the opening frame. mouth.
じ止めするための取り付け孔を設けて成ることを特徴と
する請求項１または請求項２記載の天井点検口。3. The ceiling inspection port according to claim 1, wherein a mounting hole for screwing the vertical piece to an opening edge is provided in the vertical piece of the mounting bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07073396A JP3310535B2 (en) | 1996-03-26 | 1996-03-26 | Ceiling access door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07073396A JP3310535B2 (en) | 1996-03-26 | 1996-03-26 | Ceiling access door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09256616A JPH09256616A (en) | 1997-09-30 |
| JP3310535B2 true JP3310535B2 (en) | 2002-08-05 |
Family
ID=13440037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP07073396A Expired - Fee Related JP3310535B2 (en) | 1996-03-26 | 1996-03-26 | Ceiling access door |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3310535B2 (en) |
-
1996
- 1996-03-26 JP JP07073396A patent/JP3310535B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09256616A (en) | 1997-09-30 |
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