JP2690281B2 - Ceiling access door - Google Patents
Ceiling access doorInfo
- Publication number
- JP2690281B2 JP2690281B2 JP5482895A JP5482895A JP2690281B2 JP 2690281 B2 JP2690281 B2 JP 2690281B2 JP 5482895 A JP5482895 A JP 5482895A JP 5482895 A JP5482895 A JP 5482895A JP 2690281 B2 JP2690281 B2 JP 2690281B2
- Authority
- JP
- Japan
- Prior art keywords
- frame
- inner frame
- outer frame
- state
- flange portion
- 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 - Lifetime
Links
Landscapes
- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
Description
【0001】[0001]
【産業上の利用分野】本発明は、天井の上部空間に設け
られる配線、配管などの点検、修理などを行なうために
天井に設けられる天井点検口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 and repairing wiring, piping and the like provided in an upper space of the ceiling.
【0002】[0002]
【従来の技術】天井点検口は一般に、天井面に形成され
た開口部に取り付けられる外枠と、この外枠に水平軸芯
により枢支され外枠内に収まった状態と外枠から下向き
に突出した状態との間で回動自在で天井材と同質のボー
ドを備えた内枠とから構成され、天井点検口を開放する
場合は外枠と内枠とのロックを解除することにより内枠
が外枠から下向きに突出する方向に回動するようになっ
ている。2. Description of the Related Art In general, a ceiling inspection port has an outer frame attached to an opening formed in a ceiling surface, a state in which the outer frame is pivotally supported by a horizontal axis center and is housed in the outer frame, and downward from the outer frame. It consists of an inner frame that has a board of the same quality as the ceiling material and is rotatable between the protruding state, and when the ceiling inspection port is opened, the inner frame is unlocked by unlocking the outer frame and the inner frame. Is rotated in a direction projecting downward from the outer frame.
【0003】[0003]
【発明が解決しようとする課題】しかしながら、上記従
来の天井点検口の構成にあっては、天井点検口を開放す
るために外枠と内枠とのロックを解除し、内枠から手を
離してしまうとボードを備えた内枠の重みにより内枠は
一気に下動し、外枠と内枠とのロックを解除した人の頭
部などに当たって怪我をさせるという恐れがあった。However, in the above-mentioned conventional ceiling inspection port configuration, the outer frame and the inner frame are unlocked in order to open the ceiling inspection port, and the hand is released from the inner frame. If this happens, the weight of the inner frame equipped with the board could cause the inner frame to move down at a stroke, which could lead to injury by hitting the head of a person who unlocked the outer and inner frames.
【0004】本発明はこのような課題を解決するもの
で、天井点検口を開くために外枠と内枠とのロックを解
除した後、内枠から手を離しても内枠の下動を一旦止め
て内枠が一気に下動するのを防止し、怪我などの心配の
ない安全性の高い天井点検口を提供することを目的とす
るものである。The present invention solves such a problem. Even after the lock is released between the outer frame and the inner frame to open the ceiling inspection port, the inner frame can be moved downward even if the inner frame is released. The purpose of the invention is to provide a highly safe ceiling inspection port that is temporarily stopped to prevent the inner frame from moving down at a stretch and is free from the risk of injury.
【0005】[0005]
【課題を解決するための手段】この課題を解決するため
に本発明は、天井面に形成された開口部に取り付けられ
る外枠と、この外枠に対し外枠内に収まった状態と外枠
から下向きに突出した状態との間で回動自在な内枠と、
内枠が外枠内に収まった状態でロックする手段とからな
り、前記内枠は内枠の2組の対向側板の内の1組の対向
側板の長さ方向一端近傍にこの1組の対向側板の長さ方
向一端から突出する方向にスライド自在なアームの先端
に設けた軸体を外枠の2組の対向側板の内の1組の対向
側板の長さ方向一端近傍に形成した案内溝に移動自在に
係合させて外枠に支持され、前記外枠は下端外側に全周
に亘って鍔部を一体に備え、前記内枠は下端の内側およ
び外側に全周に亘ってそれぞれ鍔部を一体に備え、内側
の鍔部上にボードを載置固定し、また前記内枠の外側の
鍔部は前記外枠の鍔部よりも幅が大きな水平な板部と、
この板部の周囲から立ち上がる板部とからなり、内枠の
開動途中において内枠の周囲から立ち上がる板部の上端
が外枠の鍔部周りの天井面に当接して傾斜状態で停止す
るように構成したものである。In order to solve this problem, the present invention provides an outer frame attached to an opening formed in a ceiling surface, and a state in which the outer frame is accommodated in the outer frame and the outer frame. An inner frame that is rotatable between the state in which it projects downward from
And a means for locking the inner frame in a state where the inner frame is housed in the outer frame. The inner frame is provided with a pair of facing side plates of the two facing side plates of the inner frame near one end in the length direction of the pair of facing side plates. A guide groove in which a shaft provided at the tip of an arm slidable in a direction projecting from one end of the side plate in the length direction is formed near one end in the length direction of one of the two opposite side plates of the outer frame. Is movably engaged with the outer frame and is supported by an outer frame, and the outer frame is integrally provided with a flange portion on the outer side of the lower end over the entire circumference, and the inner frame is provided on the inner side and the outer side of the lower end over the entire circumference, respectively. Integrally provided with a portion, the board is placed and fixed on the inner collar portion, and the outer collar portion of the inner frame is a horizontal plate portion having a width larger than that of the outer frame collar portion,
It consists of a plate portion rising from the periphery of this plate portion, and the upper end of the plate portion rising from the periphery of the inner frame contacts the ceiling surface around the flange portion of the outer frame and stops in an inclined state during the opening movement of the inner frame. It is composed.
【0006】[0006]
【作用】この構成により、天井点検口を開くために外枠
と内枠とのロックを解除した後、内枠から手を離して
も、内枠は1組の対向側板の長さ方向一端間に位置する
側板の外側の鍔部の周囲から立ち上がる板部の上端が外
枠の鍔部周りの天井面に当接して、内枠の下動が一旦止
められて内枠が一気に下動するのを防止され、怪我など
の心配のない安全性の高い天井点検口を提供することが
できる。With this structure, even if the inner frame is released after unlocking the outer frame and the inner frame to open the ceiling inspection port, the inner frame is provided between the pair of opposite side plates in the longitudinal direction. The upper end of the plate part rising from the periphery of the outer flange part of the side plate comes into contact with the ceiling surface around the flange part of the outer frame, the downward movement of the inner frame is temporarily stopped, and the inner frame moves down at a stretch. It is possible to provide a highly safe ceiling inspection port that is prevented and is free from the risk of injury.
【0007】[0007]
【実施例】以下、本発明の一実施例について、図面に基
づいて説明する。図1〜図6において、1は天井面2に
形成された開口部3に取り付けられる平面形状が正方形
の外枠で、この外枠1に対し外枠1内に収まった状態と
外枠1から下向きに突出した状態との間で回動自在に平
面形状が正方形の内枠4が設けられている。前記外枠1
および内枠4はそれぞれアルミニウムを材料として成形
されている。前記外枠1は下端外側に全周に亘って鍔部
5を一体に備え、この鍔部5の上面が前記開口部3周り
の天井面2に当接して、外枠1は上方からハンガー(図
示せず)により吊り下げられている。前記内枠4は下端
の内側および外側に全周に亘って鍔部6および7を一体
に備え、内側の鍔部6上に天井面2を形成する天井材と
同質のボード8が載せられて内枠4に取り付けられてい
る。また、内枠4の外側の鍔部7は前記外枠1の鍔部5
よりも幅が大きな水平な板部7aと、この板部7aの周
囲から立ち上がる板部7bとから構成され、内枠4が外
枠1内に収まって閉じた状態において前記水平な板部7
a上に装着したパッキン9が外枠1の鍔部5の下面に当
接して外枠1と内枠4との気密を保持するようになって
いる。An embodiment of the present invention will be described below with reference to the drawings. 1 to 6, reference numeral 1 denotes an outer frame having a square planar shape which is attached to an opening 3 formed in a ceiling surface 2, and a state in which the outer frame 1 is accommodated in the outer frame 1 and the outer frame 1. An inner frame 4 having a square planar shape is provided so as to be rotatable between the inner frame 4 and the downward protruding state. The outer frame 1
The inner frame 4 and the inner frame 4 are each made of aluminum. The outer frame 1 is integrally provided with a collar portion 5 on the outer periphery of the lower end over the entire circumference, and an upper surface of the collar portion 5 abuts on a ceiling surface 2 around the opening 3, so that the outer frame 1 is hangered from above. It is suspended by (not shown). The inner frame 4 is integrally provided with flange portions 6 and 7 on the inner and outer sides of the lower end over the entire circumference, and a board 8 of the same quality as the ceiling material forming the ceiling surface 2 is placed on the inner collar portion 6. It is attached to the inner frame 4. Further, the outer collar portion 7 of the inner frame 4 is the collar portion 5 of the outer frame 1.
A horizontal plate portion 7a having a width larger than that of the horizontal plate portion 7a, and a plate portion 7b rising from the periphery of the plate portion 7a.
The packing 9 mounted on a is brought into contact with the lower surface of the collar portion 5 of the outer frame 1 to keep the outer frame 1 and the inner frame 4 airtight.
【0008】ところで、前記外枠1に対する内枠4の支
持は、内枠4の2組の対向側板4a,4b、4c,4d
の内の1組の対向側板4a,4bの長さ方向一端近傍に
1組の対向側板4a,4bの長さ方向一端から突出する
方向にスライド自在なアーム10の先端に設けた軸体11を
外枠1の2組の対向側板1a,1b、1c,1dの内の
1組の対向側板1a,1bの長さ方向一端近傍に形成し
た案内溝12に移動自在に係合させることにより行なわれ
ている。詳しくは、前記アーム10は内枠4の前記1組の
対向側板4a,4bの長さ方向一端近傍外面に装着した
ガイド部材13にスライド自在に支持され、このアーム10
の先端の軸体11には前記外枠1の案内溝12の幅よりも大
径の頭部14を備えて、この頭部14が案内溝12に係合して
いる。前記外枠1の1組の各側板1a,1bの案内溝12
は各側板1a,1bの長さ方向一端側に上向きに傾斜す
る傾斜溝部12aと、この傾斜溝部12aに繋がり中央に位
置する段付き溝部12bと、この段付き溝部12bに繋がり
前記頭部14よりも大きな開口部12cとからなる。また、
この案内溝12形成部は外枠1の内側にやや突出してお
り、案内溝12に係合した軸体11の頭部14の端面が外枠1
の各側板1a,1bから大きく突出しないように構成さ
れている。そこで、外枠1に対し内枠4をセットすると
きは、外枠1の下方から内枠4を外枠1に対しほぼ直角
に向く姿勢で前記開口部12cから軸体11の頭部14を嵌入
させて軸体11を中央の段付き溝部12bに位置させ、その
後内枠4を閉じる方向に回転させながら軸体11を傾斜溝
部12a側に移動させることにより、軸体11が傾斜溝部12
aの端部に当接した状態で内枠4は完全に閉じ終り、水
平状態となる。By the way, the support of the inner frame 4 with respect to the outer frame 1 is carried out by the two sets of opposing side plates 4a, 4b, 4c, 4d of the inner frame 4.
A shaft 11 provided at the tip of an arm 10 slidable in the direction projecting from one end of the pair of opposing side plates 4a, 4b in the vicinity of one end of the pair of opposing side plates 4a, 4b in the longitudinal direction. It is carried out by movably engaging with a guide groove 12 formed near one end in the length direction of one pair of the opposite side plates 1a, 1b of the two opposite side plates 1a, 1b, 1c, 1d of the outer frame 1. ing. More specifically, the arm 10 is slidably supported by a guide member 13 mounted on the outer surface of one end of the inner frame 4 near one end in the length direction of the pair of opposing side plates 4a, 4b.
The shaft body 11 at the tip of is provided with a head 14 having a diameter larger than the width of the guide groove 12 of the outer frame 1, and the head 14 is engaged with the guide groove 12. Guide groove 12 of each pair of side plates 1a, 1b of the outer frame 1
Is a slanted groove portion 12a that is slanted upward toward one end in the length direction of each side plate 1a, 1b, a stepped groove portion 12b connected to this slanted groove portion 12a and located in the center, and connected to this stepped groove portion 12b Also has a large opening 12c. Also,
The guide groove 12 forming portion slightly protrudes inside the outer frame 1, and the end surface of the head portion 14 of the shaft body 11 engaged with the guide groove 12 has an outer frame 1.
The side plates 1a and 1b are configured so as not to largely project. Therefore, when the inner frame 4 is set on the outer frame 1, the head 14 of the shaft body 11 is moved from the opening 12c in a posture in which the inner frame 4 is oriented substantially at right angles to the outer frame 1 from below the outer frame 1. The shaft body 11 is fitted into the stepped groove portion 12b at the center, and then the shaft body 11 is moved to the inclined groove portion 12a side while rotating the inner frame 4 in the closing direction.
The inner frame 4 is completely closed in the state of being in contact with the end portion of a and is in the horizontal state.
【0009】15は内枠4を閉じた状態で支持するために
外枠1に形成した孔部16に係脱自在に内枠4に回転自在
に設けた爪片で、一端に爪片15を取り付けた回転軸17の
他端の頭部17aは内枠4の外側の鍔部7の底面に突出
し、この頭部17aにドライバーの先端やコインなどを係
合させて回転軸17を回すことにより爪片15が孔部16に係
脱することとなる。Numeral 15 is a claw piece rotatably provided on the inner frame 4 so as to be engageable with and disengageable from a hole 16 formed in the outer frame 1 for supporting the inner frame 4 in a closed state. The head 17a at the other end of the attached rotary shaft 17 projects to the bottom surface of the flange 7 on the outer side of the inner frame 4, and the head of the head 17a is engaged with the tip of a driver or a coin to rotate the rotary shaft 17. The claw piece 15 is disengaged from the hole 16.
【0010】上記構成において、内枠4を開く動作手順
について説明する。図4に示している閉じられた内枠4
を開く場合は、先ず前記頭部17aにドライバーの先端や
コインなどを係合させて爪片15を回して前記孔部16との
係合を解除させる。これにより、内枠4は外枠1に対し
下方に回動可能となる。前述のように、爪片15を回して
前記孔部16との係合を解除させるとき、内枠4を下から
支えて行なえば良いが、仮に内枠4を下から支えるのを
忘れて爪片15と孔部16との係合が解除すると同時に内枠
4が回転しようとしても、軸体11が傾斜溝部12aの端部
に位置したままでは、内枠4は前記1組の対向側板4
a,4bの長さ方向一端間に位置する側板4cの外側の
鍔部7の周囲から立ち上がる板部7bの上端が外枠1の
鍔部5周りの天井面2に当接して、内枠4は僅かしか回
転することができず、傾斜状態で半開きのままとなる
(図5参照)。この状態から内枠4を前記傾斜溝部12a
から段付き溝部12bに軸体11が移動するように斜めに引
っ張る。この動作により前記アーム10が内枠4の1組の
対向側板4a,4bの長さ方向一端から最大限突出した
状態となり、このアーム10の先端の軸体11が段付き溝部
12bの位置で停止し、この軸体11の周りで内枠4が下方
に回転して開口部3が開かれる(図6参照)。An operation procedure for opening the inner frame 4 in the above structure will be described. Closed inner frame 4 shown in FIG.
To open, the head 17a is first engaged with the tip of a driver or a coin, and the claw piece 15 is rotated to release the engagement with the hole 16. As a result, the inner frame 4 can be rotated downward with respect to the outer frame 1. As described above, when the claw piece 15 is rotated to release the engagement with the hole 16, it is sufficient to support the inner frame 4 from below, but if the foregoing support of the inner frame 4 is forgotten, Even if the inner frame 4 tries to rotate at the same time when the engagement between the piece 15 and the hole 16 is released, if the shaft body 11 remains positioned at the end of the inclined groove portion 12a, the inner frame 4 will not move.
The upper end of the plate portion 7b rising from the periphery of the outer flange portion 7 of the side plate 4c located between the one ends in the lengthwise direction of a, 4b abuts the ceiling surface 2 around the collar portion 5 of the outer frame 1 and the inner frame 4 Can rotate only slightly and remains half-open when tilted (see FIG. 5). From this state, the inner frame 4 is moved to the inclined groove portion 12a.
Is pulled obliquely so that the shaft body 11 moves to the stepped groove portion 12b. By this operation, the arm 10 is in a state of maximally protruding from one end of the pair of opposed side plates 4a, 4b of the inner frame 4 in the length direction, and the shaft body 11 at the tip of the arm 10 has the stepped groove portion.
It stops at the position of 12b, and the inner frame 4 rotates downward around the shaft 11 to open the opening 3 (see FIG. 6).
【0011】[0011]
【発明の効果】以上のように本発明によれば、天井点検
口を開くために外枠と内枠とのロックを解除した後、内
枠から手を離しても、内枠は1組の対向側板の長さ方向
一端間に位置する側板の外側の鍔部の周囲から立ち上が
る板部の上端が外枠の鍔部周りの天井面に当接して、内
枠の下動が一旦止められて内枠が一気に下動するのを防
止され、怪我などの心配のない安全性の高い天井点検口
を提供することができる。As described above, according to the present invention, even if the inner frame is released after unlocking the outer frame and the inner frame in order to open the ceiling inspection port, the inner frame still has one set. The lower end of the inner frame is temporarily stopped because the upper end of the plate part that rises from the periphery of the outer flange part of the side plate located between the one ends in the length direction of the opposite side plate comes into contact with the ceiling surface around the flange part of the outer frame. It is possible to provide a highly safe ceiling inspection port that prevents the inner frame from moving down at a stretch and does not worry about injury.
【図1】本発明の一実施例における天井点検口の分解斜
視図である。FIG. 1 is an exploded perspective view of a ceiling inspection port according to an embodiment of the present invention.
【図2】同天井点検口の組立斜視図である。FIG. 2 is an assembled perspective view of the ceiling inspection port.
【図3】同要部拡大横断面図である。FIG. 3 is an enlarged cross-sectional view of the main part.
【図4】同天井点検口の閉じた状態を示す要部拡大側面
図である。FIG. 4 is an enlarged side view of an essential part showing a closed state of the ceiling inspection port.
【図5】同天井点検口が半開きの状態を示す要部拡大側
面図である。FIG. 5 is an enlarged side view of an essential part showing a state where the ceiling inspection port is half opened.
【図6】同天井点検口が完全に開いた状態を示す要部拡
大側面図である。FIG. 6 is an enlarged side view of an essential part showing a state where the ceiling inspection port is completely opened.
1 外枠 1a 側板 1b 側板 1c 側板 1d 側板 2 天井面 3 開口部 4 内枠 4a 側板 4b 側板 4c 側板 4d 側板 5 鍔部 6 鍔部 7 鍔部 7a 板部 7b 板部 8 ボード 9 パッキン 10 アーム 11 軸体 12 案内溝 12a 傾斜溝部 12b 段付き溝部 12c 開口部 13 ガイド部材 14 頭部 15 爪片 16 孔部 1 Outer frame 1a Side plate 1b Side plate 1c Side plate 1d Side plate 2 Ceiling surface 3 Opening 4 Inner frame 4a Side plate 4b Side plate 4c Side plate 4d Side plate 5 Collar part 6 Collar part 7a 9 Plate 11 board part 7b Plate part 7b Plate part 7b Shaft 12 Guide groove 12a Inclined groove 12b Stepped groove 12c Opening 13 Guide member 14 Head 15 Claw 16 Hole
Claims (1)
れる外枠と、この外枠に対し外枠内に収まった状態と外
枠から下向きに突出した状態との間で回動自在な内枠
と、内枠が外枠内に収まった状態でロックする手段とか
らなり、前記内枠は内枠の2組の対向側板の内の1組の
対向側板の長さ方向一端近傍にこの1組の対向側板の長
さ方向一端から突出する方向にスライド自在なアームの
先端に設けた軸体を外枠の2組の対向側板の内の1組の
対向側板の長さ方向一端近傍に形成した案内溝に移動自
在に係合させて外枠に支持され、前記外枠は下端外側に
全周に亘って鍔部を一体に備え、前記内枠は下端の内側
および外側に全周に亘ってそれぞれ鍔部を一体に備え、
内側の鍔部上にボードを載置固定し、また前記内枠の外
側の鍔部は前記外枠の鍔部よりも幅が大きな水平な板部
と、この板部の周囲から立ち上がる板部とからなり、内
枠の開動途中において内枠の周囲から立ち上がる板部の
上端が外枠の鍔部周りの天井面に当接して傾斜状態で停
止するように構成したことを特徴とする天井点検口。1. An outer frame attached to an opening formed on a ceiling surface, and an inner frame that is rotatable with respect to the outer frame between a state of being housed in the outer frame and a state of projecting downward from the outer frame. The frame includes a frame and a means for locking the inner frame in a state where the inner frame is contained in the outer frame. The inner frame is provided near one end in the length direction of one of the two opposite side plates of the inner frame. A shaft provided at the tip of an arm slidable in a direction projecting from one end in the length direction of the pair of opposite side plates is formed near one end in the length direction of one of the two opposite side plates of the outer frame. Is movably engaged with the guide groove and supported by an outer frame, the outer frame is integrally provided with a flange portion on the outer side of the lower end over the entire circumference, and the inner frame is provided on the inner side and the outer side of the lower end over the entire circumference. Each has a collar part integrally,
The board is placed and fixed on the inner flange portion, and the outer flange portion of the inner frame is a horizontal plate portion having a width larger than the flange portion of the outer frame, and a plate portion rising from the periphery of the plate portion. The ceiling inspection port characterized in that the upper end of the plate portion rising from the periphery of the inner frame comes into contact with the ceiling surface around the flange portion of the outer frame and stops in an inclined state while the inner frame is being opened. .
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5482895A JP2690281B2 (en) | 1995-03-15 | 1995-03-15 | Ceiling access door |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5482895A JP2690281B2 (en) | 1995-03-15 | 1995-03-15 | Ceiling access door |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH08254008A JPH08254008A (en) | 1996-10-01 |
JP2690281B2 true JP2690281B2 (en) | 1997-12-10 |
Family
ID=12981531
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5482895A Expired - Lifetime JP2690281B2 (en) | 1995-03-15 | 1995-03-15 | Ceiling access door |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2690281B2 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3964044B2 (en) * | 1998-04-14 | 2007-08-22 | ナカ工業株式会社 | Inspection port panel structure |
KR100456819B1 (en) * | 2001-12-27 | 2004-11-10 | 황점수 | Ceiling door |
KR100619426B1 (en) * | 2006-05-03 | 2006-09-01 | 권춘화 | The ceiling inspection checking door |
JP6808483B2 (en) * | 2016-12-28 | 2021-01-06 | ナカ工業株式会社 | inspection door |
KR102270912B1 (en) * | 2019-12-31 | 2021-06-29 | 신중배 | The ceiling access door |
-
1995
- 1995-03-15 JP JP5482895A patent/JP2690281B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH08254008A (en) | 1996-10-01 |
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