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JP6280831B2 - Ceiling inspection lid fixing structure - Google Patents
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JP6280831B2 - Ceiling inspection lid fixing structure - Google Patents

Ceiling inspection lid fixing structure Download PDF

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JP6280831B2
JP6280831B2 JP2014153594A JP2014153594A JP6280831B2 JP 6280831 B2 JP6280831 B2 JP 6280831B2 JP 2014153594 A JP2014153594 A JP 2014153594A JP 2014153594 A JP2014153594 A JP 2014153594A JP 6280831 B2 JP6280831 B2 JP 6280831B2
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inspection
inspection lid
piece
ceiling
pin
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JP2016030951A (en
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昂洋 大島
昂洋 大島
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Nifco Inc
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Nifco Inc
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  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Connection Of Plates (AREA)
  • Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)

Description

本発明は、天井の点検口に対して天井裏側から嵌合された点検蓋を固定具によって点検口の縁部に固定する天井点検蓋固定構造に関する。   The present invention relates to a ceiling inspection lid fixing structure in which an inspection lid fitted from the back of a ceiling to a ceiling inspection port is fixed to an edge of the inspection port by a fixture.

浴室等の天井には、天井裏の電気配線、換気設備等のメンテナンスを行うための点検口が設けられ、通常、この点検口には、点検蓋が取り付けられている。この点検蓋は、天井裏側から点検口に被せるように点検口の周縁部に係合させただけのものが一般的である。メンテナンスを行うときには、点検蓋を天井裏側へと持ち上げてずらすことにより、点検口を開口する。   The ceiling of a bathroom or the like is provided with an inspection port for maintenance of electrical wiring, ventilation equipment, etc. behind the ceiling, and an inspection lid is usually attached to the inspection port. In general, the inspection lid is simply engaged with the peripheral edge of the inspection port so as to cover the inspection port from the ceiling back side. When performing maintenance, the inspection lid is opened by lifting the inspection lid toward the back of the ceiling and shifting it.

しかしながら、このように単に蓋体を天井裏側から点検蓋を点検口に係合させただけの構造では、例えば密閉性の高いユニットバスルームの場合、ドアの開閉時に、風圧によって点検蓋が持ち上がってしまうことがある。また、天井の拭き掃除を行う際に点検蓋が持ち上がってしまう等の不都合がある。そこで、このような天井の点検口の点検蓋を簡易に固定する固定構造として下記特許文献1に示すようなものがある。   However, in such a structure in which the lid is simply engaged from the back side of the ceiling to the inspection port, for example, in the case of a unit bathroom with high hermeticity, the inspection lid is lifted by wind pressure when the door is opened and closed. May end up. In addition, there is a disadvantage that the inspection lid is lifted when the ceiling is wiped and cleaned. Then, there exists a thing as shown in following patent document 1 as a fixing structure which fixes the inspection lid of such an inspection opening of a ceiling simply.

この特許文献1には、天井に設けられた点検口の周縁部に、点検蓋を天井裏側から係合させ、点検蓋で点検口を閉塞し固定する天井点検蓋固定構造が記載されている。この構造に用いられる固定具は、部屋側の天井表面に臨む押さえ板に、偏芯して回転軸が立設されている。点検蓋には、外縁近傍に挿通孔が形成され、固定具は、押さえ板が天井表面に位置するように、回転軸を挿通孔に挿通して取り付けられる。押さえ板には、回転軸が偏芯されていることで、回転軸から外周縁まで大きく張り出した係止部が形成されている。固定具は、回転操作されて、押さえ板の係止部が点検蓋と点検口の周縁に跨るように位置することで、点検蓋を点検口に固定し、点検蓋が天井裏側に浮き上がることを防止する。   Patent Document 1 describes a ceiling inspection lid fixing structure in which an inspection lid is engaged with a peripheral portion of an inspection port provided on the ceiling from the back side of the ceiling, and the inspection port is closed and fixed with the inspection lid. The fixture used in this structure is eccentrically placed on a pressing plate facing the room-side ceiling surface, and a rotating shaft is erected. An insertion hole is formed in the vicinity of the outer edge of the inspection lid, and the fixture is attached by inserting the rotary shaft through the insertion hole so that the pressing plate is located on the ceiling surface. The holding plate is formed with a locking portion that protrudes greatly from the rotating shaft to the outer peripheral edge because the rotating shaft is eccentric. The fixing tool is rotated so that the locking part of the holding plate is positioned so as to straddle the periphery of the inspection lid and the inspection port, so that the inspection lid is fixed to the inspection port and the inspection lid is raised on the back side of the ceiling. To prevent.

また、点検蓋の外周縁と点検口の周縁部との間には、ゴムパッキンが介在され、点検蓋の外周縁と点検口の周縁部とはゴムパッキンに密着される。   Further, a rubber packing is interposed between the outer peripheral edge of the inspection lid and the peripheral edge portion of the inspection opening, and the outer peripheral edge of the inspection lid and the peripheral edge portion of the inspection opening are in close contact with the rubber packing.

なお、点検蓋は、固定具が回転されて、押さえ板の係止部が点検口周縁から退避すると、点検口から浮き上がらせて点検口から外すことができるようになる。   The inspection lid can be lifted from the inspection port and removed from the inspection port when the fixing member is rotated and the locking portion of the pressing plate is retracted from the periphery of the inspection port.

特許第3894309号公報Japanese Patent No. 3894309

しかしながら、特許文献1の固定具は、押さえ板が部屋側の天井表面に位置し、利用者の目につく部分に位置する。また、押さえ板は、係止部が点検蓋と点検口の周縁部とに跨る大きさが必要となり、大きな部分である。このため、部屋の天井において、押さえ板は、目立ち、利用者から見て決して見栄えの良いものではない。   However, in the fixture of Patent Document 1, the presser plate is located on the ceiling surface on the room side, and is located in a portion that is noticeable to the user. In addition, the holding plate is a large part because the engaging portion needs to have a size that spans the inspection lid and the peripheral edge of the inspection port. For this reason, on the ceiling of the room, the holding plate is conspicuous and never looks good from the user's perspective.

本発明は、点検蓋を天井に係止する部位が天井の表面側から見て視認されることを抑えることができる天井点検蓋固定構造を提供することを目的とする。   An object of this invention is to provide the ceiling inspection cover fixing structure which can suppress that the site | part which latches an inspection cover on a ceiling seeing from the surface side of a ceiling is visible.

上記課題を解決する天井点検蓋固定構造は、天井の点検口に対して天井裏側から嵌合された点検蓋を固定具によって点検口の縁部に固定して、点検蓋の浮き上がりを防止する。前記点検口の縁部には、起立片が形成されており、前記点検蓋は、外縁近傍に挿通孔が形成されている。前記固定具は、前記挿通孔に挿通される操作軸部材と、前記点検蓋の裏面において前記挿通孔に挿通された操作軸部材に取り付けられる係止体とを備える。前記係止体は、前記起立片に係止される掛け金部を有している。   In the ceiling inspection lid fixing structure that solves the above-described problems, the inspection lid fitted from the back side of the ceiling to the inspection opening of the ceiling is fixed to the edge of the inspection opening by a fixing tool to prevent the inspection lid from being lifted. Standing pieces are formed at the edge of the inspection port, and the inspection lid is formed with an insertion hole in the vicinity of the outer edge. The fixture includes an operation shaft member that is inserted through the insertion hole, and a locking body that is attached to the operation shaft member that is inserted through the insertion hole on the back surface of the inspection lid. The said locking body has a latch part latched by the said standing piece.

上記構成によれば、前記係止体は、前記点検蓋の裏側に配置され、利用者から目に付かない位置に配置され、前記点検蓋の部屋側の表面には、前記操作軸部材の頭部だけが露出する。したがって、前記天井点検蓋固定構造では、前記操作軸部材の頭部が天井の表面側から見て視認されることを抑えることができる。すなわち、前記操作軸部材の頭部は、小さいものであり、従って、利用者から目立たなくすることができる。   According to the above configuration, the locking body is disposed on the back side of the inspection lid, is disposed at a position that is not visible to the user, and the head of the operation shaft member is disposed on the surface of the inspection lid on the room side. Only the part is exposed. Therefore, in the ceiling inspection lid fixing structure, it is possible to suppress the head of the operation shaft member from being viewed when viewed from the surface side of the ceiling. That is, the head of the operating shaft member is small, and therefore can be made inconspicuous from the user.

上記天井点検蓋固定構造において、更に、前記起立片の先端部には、前記点検口とは反対側に折曲して支持部を形成し、前記掛け金部を、コ字状に形成し、前記点検蓋の外縁部と前記起立片の支持部とが重なった状態において、前記点検蓋の外縁部と前記起立片の支持部とを挟み込むようにしてもよい。   In the ceiling inspection lid fixing structure, further, a support portion is formed by bending the tip of the upright piece on the side opposite to the inspection port, and the latch portion is formed in a U shape, In the state where the outer edge portion of the inspection lid and the support portion of the upright piece overlap each other, the outer edge portion of the inspection lid and the support portion of the upright piece may be sandwiched.

上記構成によれば、前記掛け金部がコ字状に形成され、前記点検蓋の外縁部と前記起立片の支持部とを挟み込むようにしているので、前記点検蓋の外縁部と前記起立片の支持部とを挟み込む保持力を高くすることができる。   According to the above configuration, the latch portion is formed in a U-shape, and the outer edge portion of the inspection lid and the support portion of the upright piece are sandwiched between the outer edge portion of the inspection lid and the upright piece. The holding force that sandwiches the support portion can be increased.

上記天井点検蓋固定構造において、更に、前記掛け金部には、前記コ字状をなす相対する片の何れか一方に、それと対向する前記点検蓋の外縁部を押圧する弾性片を形成するようにしてもよい。また、前記掛け金部には、前記コ字状をなす相対する片の何れか他方に、それと対向する前記起立片の支持部を支持する突部を形成するようにしてもよい。前記弾性片や前記突部を設けたときには、前記点検蓋の外縁部と前記起立片の支持部との間にシール材を介在させてもよい。   In the ceiling inspection lid fixing structure, an elastic piece that presses an outer edge portion of the inspection lid opposite to the U-shaped opposed piece is formed on the latch portion. May be. Moreover, you may make it form in the said latch part the protrusion which supports the support part of the said standing piece which opposes it in any one of the opposing pieces which make said U shape. When the elastic piece or the protrusion is provided, a sealing material may be interposed between the outer edge portion of the inspection lid and the support portion of the upright piece.

上記構成によれば、前記弾性片で、重なっている前記点検蓋の外縁部を押圧することができる。また、前記突部で、重なっている前記起立片の支持部を支持することができる。これにより、重なっている前記点検蓋の外縁部と前記起立片の支持部とが所定の圧力で挟み込まれ、これらの間を確実にシールすることができる。前記シール材を介在させたときには、シール材を前記点検蓋の外縁部と前記起立片の支持部とでしっかりと押し潰すことができ、一層シール性を高めることができる。   According to the said structure, the outer edge part of the said inspection lid | cover which has overlapped can be pressed with the said elastic piece. Moreover, the support part of the said standing piece which has overlapped can be supported by the said protrusion. Thereby, the outer edge part of the said inspection lid | cover and the support part of the said standing piece which overlap are pinched | interposed by predetermined pressure, and between these can be sealed reliably. When the sealing material is interposed, the sealing material can be firmly crushed by the outer edge portion of the inspection lid and the support portion of the upright piece, and the sealing performance can be further enhanced.

以上のような構成によれば、点検蓋の挿通孔に挿通された操作軸部材に取り付けられ、点検蓋の裏側に隠れる。したがって、点検蓋の部屋側の表面には、操作軸部材の頭部のみが露出される。したがって、操作軸部材の頭部が天井の表面側から見て視認されることを抑えることができる。   According to the above configuration, it is attached to the operation shaft member inserted through the insertion hole of the inspection lid and hidden behind the inspection lid. Therefore, only the head of the operation shaft member is exposed on the surface of the inspection lid on the room side. Therefore, it can suppress that the head of an operating shaft member is visually recognized seeing from the surface side of a ceiling.

天井点検蓋固定構造の分解斜視図である。It is a disassembled perspective view of a ceiling inspection lid fixing structure. 操作軸部材及び係止体の斜視図である。It is a perspective view of an operation shaft member and a locking body. 係止体を一方の側から見た斜視図である。It is the perspective view which looked at the latching body from one side. 係止体を他方の側から見た斜視図である。It is the perspective view which looked at the latching body from the other side. 係止体が点検蓋をロックしていない状態を示し、(a)は側面図、(b)は平面図である。The state which the latching body has not locked the inspection lid | cover is shown, (a) is a side view, (b) is a top view. 係止体が点検蓋をロックしている状態を示し、(a)は側面図、(b)は平面図である。The latching body has shown the state which has locked the inspection lid, (a) is a side view, (b) is a top view. 掛け金部にアーム部が形成されていない係止体を用いた天井点検蓋固定構造の変形例を示す側面図であり、係止体が点検蓋をロックしていない状態を示す。It is a side view which shows the modification of the ceiling inspection cover fixing structure using the latching body in which the arm part is not formed in a latch part, and the latching body shows the state which has not locked the inspection lid. 掛け金部にアーム部が形成されていない係止体を用いた天井点検蓋固定構造の変形例を示す側面図であり、係止体が点検蓋をロックしている状態を示す。It is a side view which shows the modification of the ceiling inspection cover fixing structure using the latching body in which the arm part is not formed in a latch part, and the latching body shows the state which has locked the inspection lid. 天井点検蓋固定構造の変形例の分解斜視図である。It is a disassembled perspective view of the modification of a ceiling inspection lid fixing structure. 組立後の天井点検蓋固定構造の斜視図である。It is a perspective view of the ceiling inspection lid fixing structure after assembly. 係止体にカバーが取り付けられた状態を示す断面図である。It is sectional drawing which shows the state in which the cover was attached to the latching body.

以下、本発明における天井点検蓋固定構造を具体化した一実施の形態を図面を参照して説明する。   Hereinafter, an embodiment embodying a ceiling inspection lid fixing structure according to the present invention will be described with reference to the drawings.

[天井点検蓋固定構造の概要]
図1に示す天井点検蓋固定構造1は、天井パネル2の点検口3が点検蓋4で開閉可能とするとともに、点検蓋4が点検口3を閉塞した状態を固定具5でロックする構造である。
[Overview of ceiling inspection lid fixing structure]
The ceiling inspection lid fixing structure 1 shown in FIG. 1 is a structure in which the inspection port 3 of the ceiling panel 2 can be opened and closed by the inspection lid 4 and the state in which the inspection lid 4 closes the inspection port 3 is locked by the fixture 5. is there.

図1に示すように、天井パネル2は、天井裏側に石膏ボード2aが配設されている。天井パネル2の点検口3の周辺部は、石膏ボード2aが配設されておらず、石膏ボード2a等を支持する例えば薄い鉄板の表面に化粧用の塩化ビニル等の合成樹脂被膜を施した天板2bだけとなっている。点検口3は、例えば略矩形に形成されており、点検口3の開口端には、天板2bの外縁を天井裏側に折曲して起立片3aが形成されている。更に、起立片3aには、先端部が点検口3とは反対側に略く字状に折曲された支持部3bが形成されている。   As shown in FIG. 1, the ceiling panel 2 is provided with a gypsum board 2a on the back side of the ceiling. The peripheral part of the inspection port 3 of the ceiling panel 2 is not provided with a gypsum board 2a, and is a ceiling in which a synthetic resin film such as cosmetic vinyl chloride is applied on the surface of a thin iron plate that supports the gypsum board 2a or the like. Only the plate 2b is provided. The inspection port 3 is formed, for example, in a substantially rectangular shape, and an upright piece 3 a is formed at the opening end of the inspection port 3 by bending the outer edge of the top plate 2 b toward the back of the ceiling. Further, the standing piece 3 a is formed with a support portion 3 b whose tip is bent in a substantially square shape on the side opposite to the inspection port 3.

このような点検口3を閉塞する点検蓋4もまた、石膏ボード4aが例えば薄い鉄板の表面に化粧用の塩化ビニル等の合成樹脂被膜を施した蓋板4bに配設されてなり、外周部は、蓋板4bだけとなっている。点検蓋4の外縁部は、蓋板4bによって立ち上がり部4cが形成されている。更に、立ち上がり部4cの先端部には、外側に折曲した外縁片4dが張り出すように形成されている。   The inspection lid 4 for closing the inspection port 3 is also formed by arranging a gypsum board 4a on a lid plate 4b in which a synthetic resin film such as cosmetic vinyl chloride is applied on the surface of a thin iron plate, for example. Is only the cover plate 4b. A rising portion 4c is formed on the outer edge portion of the inspection lid 4 by a lid plate 4b. Further, an outer edge piece 4d bent outward is formed at the tip of the rising portion 4c.

点検蓋4は、立ち上がり部4cの内側の平坦な部分が蓋部となっており、点検口3と略同じ形状で略同じ大きさとなっており、天井裏側から点検口3に嵌合するように取り付けられる。点検蓋4は、点検口3を閉塞しているとき、立ち上がり部4cが天井パネル2側の起立片3aの内側に位置するように重なり、外縁片4dが起立片3aの支持部3bの上に重なる。これにより、天井パネル2の起立片3a及び支持部3bは、点検蓋4の荷重を支持する。また、点検蓋4の外縁片4dと起立片3aの支持部3bとの間には、ゴム等のシール材6を介在されている。このような点検蓋4は、固定具5によって、点検口3に固定され、風圧等による浮き上がりが防止されている。   The inspection lid 4 has a flat portion inside the rising portion 4c as a lid portion, is substantially the same shape and size as the inspection port 3, and is fitted to the inspection port 3 from the back side of the ceiling. It is attached. When the inspection opening 4 is closed, the inspection lid 4 overlaps so that the rising portion 4c is positioned inside the upright piece 3a on the ceiling panel 2 side, and the outer edge piece 4d is on the support portion 3b of the upright piece 3a. Overlap. Thereby, the standing piece 3 a and the support portion 3 b of the ceiling panel 2 support the load of the inspection lid 4. Further, a seal material 6 such as rubber is interposed between the outer edge piece 4d of the inspection lid 4 and the support portion 3b of the upright piece 3a. Such an inspection lid 4 is fixed to the inspection port 3 by a fixture 5 and is prevented from being lifted by wind pressure or the like.

[固定具の構成]
図1に示すように、点検口3から点検蓋4が浮き上がることを防止するため点検蓋4を固定する固定具5は、点検蓋4の外周縁近傍に形成された挿通孔10に挿通される操作軸部材11と、点検蓋4の裏面において操作軸部材11に取り付けられる係止体12とを備えている。
[Configuration of fixture]
As shown in FIG. 1, the fixture 5 that fixes the inspection lid 4 to prevent the inspection lid 4 from floating from the inspection port 3 is inserted into an insertion hole 10 formed in the vicinity of the outer peripheral edge of the inspection lid 4. An operation shaft member 11 and a locking body 12 attached to the operation shaft member 11 on the back surface of the inspection lid 4 are provided.

[操作軸部材の構成]
図1及び図2に示すように、操作軸部材11は、POM等の樹脂成型品であって、全体がピン状部材である。具体的に、操作軸部材11は、挿通孔10に挿通される部分となるピン部13と、ピン部13の基端側に形成されるピン頭部14とを有している。
[Configuration of operation shaft member]
As shown in FIGS. 1 and 2, the operation shaft member 11 is a resin molded product such as POM, and is entirely a pin-shaped member. Specifically, the operation shaft member 11 includes a pin portion 13 that is a portion that is inserted through the insertion hole 10, and a pin head portion 14 that is formed on the proximal end side of the pin portion 13.

ピン部13は、円柱の軸線方向に相対して平行な平面を形成した断面略楕円状をなし、先端部が先鋭に形成されている。ピン部13の相対する平面13a,13aは、係止体12に取り付けられた際の係止体12に対する回転規制面となる。勿論、回転規制できるのであれば、平面13a,13aは、必ずしも平行でなくてもよいし、曲面や凹凸面等であってもよい。   The pin portion 13 has a substantially elliptical cross section in which a plane parallel to the axial direction of the cylinder is formed, and has a sharp tip. The opposing flat surfaces 13 a and 13 a of the pin portion 13 serve as rotation restricting surfaces for the locking body 12 when attached to the locking body 12. Of course, as long as rotation can be restricted, the planes 13a and 13a do not necessarily have to be parallel, and may be curved surfaces, uneven surfaces, or the like.

ピン部13の平面13a,13aのそれぞれには、ピン軸線方向に沿って係合片15,15が形成されている。係合片15,15は、軸線に沿った直角三角形状をなし、ピン先端側の斜辺が係止体12に取り付ける際の挿入ガイド部となり、ピン基端側のピン軸線と垂直な底辺が係止体12に取り付けられる際の係合部となる。   Engagement pieces 15 and 15 are formed on the flat surfaces 13a and 13a of the pin portion 13 along the pin axial direction. The engaging pieces 15 and 15 have a right triangle shape along the axis, and the hypotenuse on the tip end side of the pin serves as an insertion guide when attaching to the locking body 12, and the bottom side perpendicular to the pin axis on the pin base end side is engaged. It becomes an engaging part when attached to the stationary body 12.

また、ピン部13の相対する曲面には、ピン軸線と直交する方向に貫通した長孔16が形成れている。長孔16は、その長軸がピン軸線方向となるように形成されており、長孔16の両側が薄肉となる。これにより、ピン部13は、長孔16の両側に、ピン軸線直角方向に弾性変位する変位部17,17が形成される。   Moreover, the long hole 16 penetrated in the direction orthogonal to a pin axis line is formed in the curved surface which the pin part 13 opposes. The long hole 16 is formed such that its long axis is in the pin axis direction, and both sides of the long hole 16 are thin. Thereby, the pin part 13 is formed with displacement parts 17 and 17 which are elastically displaced in the direction perpendicular to the pin axis on both sides of the long hole 16.

ピン部13の基端に位置するピン頭部14は、頂面に、操作軸部材11を回転するドライバ等の工具が係合される溝部18が形成されている。ここでは、−(マイナス)溝が形成されているが、+(プラス)溝としてもよい。ピン部13の基端部及びピン頭部14の座面には、ゴム等で形成されたパッキン19が取り付けられる。このため、ピン部13の基端部には、環状にパッキン19の取付溝19aが形成されている。パッキン19は、リング状に形成され、リング中央の開口が取付溝19aに係合されることで、位置決めされ、更に、ピン部13からの脱落が防止される。   The pin head portion 14 located at the base end of the pin portion 13 has a groove portion 18 formed with a tool such as a screwdriver that rotates the operation shaft member 11 on the top surface. Here, a-(minus) groove is formed, but a + (plus) groove may be used. A packing 19 made of rubber or the like is attached to the base end portion of the pin portion 13 and the seating surface of the pin head portion 14. For this reason, an attachment groove 19 a of the packing 19 is formed in an annular shape at the base end portion of the pin portion 13. The packing 19 is formed in a ring shape, and the opening at the center of the ring is positioned by being engaged with the mounting groove 19a, and further, the packing 19 is prevented from falling off from the pin portion 13.

[係止体の構成]
図3及び図4に示すように、天井裏側に配設される係止体12は、ステンレス等の金属板をプレス加工して形成され、樹脂成型の場合より機械的強度が高められている。この係止体12は、矩形状をなす基板部21を有し、この基板部21には、縁部から略90°折曲された連結部20を介して操作軸部材11が取り付けられる一対のピン支持片22,22が形成されている。一対のピン支持片22,22は、基板部21に対して略垂直で、互いに対向する平板であって、間に、基板部21に対して垂直な方向から操作軸部材11のピン部13が挿入される。ピン支持片22,22の間隔は、挿入されるピン部13の平面13a,13a間の厚さと一致するか、圧入できる程度に平面13a,13a間の厚さより若干狭く形成されている。各ピン支持片22,22には、ピン部13の係合片15,15が係合される係合孔22a,22aが形成されている。更に、ピン支持片22,22の先端部は、拡幅するように互いに外側を向くように折曲されており、操作軸部材11のピン部13を向かい入れる際のガイド部22bとなっている。
[Configuration of locking body]
As shown in FIGS. 3 and 4, the locking body 12 disposed on the back side of the ceiling is formed by pressing a metal plate such as stainless steel, and has higher mechanical strength than in the case of resin molding. The locking body 12 has a rectangular base plate portion 21, and a pair of operation shaft members 11 are attached to the base plate portion 21 via a connecting portion 20 bent from the edge portion by approximately 90 °. Pin support pieces 22, 22 are formed. The pair of pin support pieces 22 and 22 are flat plates that are substantially perpendicular to the substrate portion 21 and are opposed to each other, and the pin portion 13 of the operation shaft member 11 is interposed between the pair of pin support pieces 22 and 22 from the direction perpendicular to the substrate portion 21. Inserted. The interval between the pin support pieces 22 and 22 is formed to be slightly narrower than the thickness between the flat surfaces 13a and 13a to the extent that it can match the thickness between the flat surfaces 13a and 13a of the inserted pin portion 13 or can be press-fitted. The pin support pieces 22 and 22 are formed with engagement holes 22a and 22a with which the engagement pieces 15 and 15 of the pin portion 13 are engaged. Furthermore, the tip portions of the pin support pieces 22 and 22 are bent so as to face each other so as to widen, and serve as guide portions 22b when the pin portion 13 of the operation shaft member 11 is inserted.

更に、基板部21には、ピン支持片22,22の間に、ピン支持片22,22間に挿入されたピン部13の先端部が挿通される貫通孔23が形成されている。貫通孔23は、ピン部13の先端部の形状に合わせた形状となっており、回転時、ピン部13の先端部が係合するように非円形となっている。   Further, a through hole 23 is formed between the pin support pieces 22, 22 in the substrate portion 21, and the tip of the pin portion 13 inserted between the pin support pieces 22, 22 is inserted therethrough. The through hole 23 has a shape that matches the shape of the tip portion of the pin portion 13 and is non-circular so that the tip portion of the pin portion 13 engages during rotation.

係止体12は、ピン支持片22,22間に、ピン部13が挿入されると、先端部が基板部21の貫通孔23から突出し、更に、ピン部13の係合片15,15がピン支持片22,22の係合孔22a,22aに係合される。ピン部13は、係合片15,15の挿入側が直角三角形の斜辺となっているので、ピン支持片22,22の間を、変位部17,17が長孔16側に弾性変位しながら円滑に進入し、係合片15,15が係合孔22a,22aに係合した時点で変位部17,17が弾性復帰する。係合片15,15は、直角三角形の底辺がピン軸線に対して垂直なので、確実に、係合孔22a,22aに係合され、脱落が防止される。また、係止体12は、ピン部13の平面13a,13aが平板のピン支持片22,22と面接触し、更に、ピン部13が貫通孔23に係合することで、操作軸部材11に対して回転規制され、常に操作軸部材11と一体的に回転する。   When the pin portion 13 is inserted between the pin support pieces 22, the locking body 12 protrudes from the through hole 23 of the substrate portion 21, and the engagement pieces 15, 15 of the pin portion 13 The pin support pieces 22 are engaged with the engagement holes 22a, 22a. The pin portion 13 has a slanted side of a right triangle on the insertion side of the engagement pieces 15, 15, so the displacement portions 17, 17 are smoothly displaced between the pin support pieces 22, 22 toward the long hole 16 side. When the engagement pieces 15 and 15 are engaged with the engagement holes 22a and 22a, the displacement portions 17 and 17 are elastically restored. Since the bottoms of the right-angled triangles are perpendicular to the pin axis, the engagement pieces 15 and 15 are reliably engaged with the engagement holes 22a and 22a and are prevented from falling off. In addition, the locking body 12 is configured so that the flat surfaces 13 a and 13 a of the pin portion 13 are in surface contact with the flat plate pin support pieces 22 and 22, and the pin portion 13 is engaged with the through-hole 23. The rotation is restricted with respect to the operation shaft member 11 and always rotates integrally with the operation shaft member 11.

係止体12の回転支点は、ピン支持片22,22間に挿入された操作軸部材11となる。係止体12の回動支点は、次に説明する天井パネル2の起立片3aや支持部3bに係止される掛け金部24の移動量を十分に確保するために、基板部21の中心から何れかの方向に離れた位置に設けられている。ここでは、回転中心が基板部21の長辺方向であって掛け金部24と反対側に設けられている。なお、掛け金部24が天井パネル2の起立片3aや支持部3bと係脱可能であれば、係止体12の回転支点は、基板部21の中心若しくは中心寄りに設けられていてもよい。   The rotation fulcrum of the locking body 12 is the operation shaft member 11 inserted between the pin support pieces 22 and 22. The pivoting fulcrum of the locking body 12 is from the center of the substrate portion 21 in order to ensure a sufficient amount of movement of the latch portion 24 locked to the standing piece 3a and the support portion 3b of the ceiling panel 2 described below. It is provided at a position separated in either direction. Here, the center of rotation is provided in the long side direction of the substrate portion 21 and on the side opposite to the latch portion 24. Note that the rotation fulcrum of the locking body 12 may be provided at or near the center of the substrate portion 21 as long as the latch portion 24 can be engaged with and disengaged from the upright piece 3 a and the support portion 3 b of the ceiling panel 2.

図3及び図4に示すように、基板部21には、更に、点検蓋4が点検口3を閉塞しているときに、天井パネル2の起立片3aや支持部3bに係止される掛け金部24が形成されている。掛け金部24は、基板部21に対して折曲された連結部25と、連結部25に対して折曲され基板部21と離間して対向するアーム部26とを有し、基板部21と連結部25とアーム部26とでコ字状をなしている。基板部21とアーム部26との間隔は、重なり合った天井パネル2の起立片3aの支持部3bと点検蓋4の外縁片4dとが進入可能な程度の寸法となっている。アーム部26は、回転時の移動量が大きくなるように、係止体12の回転支点となる操作軸部材11の位置から離れた側に形成されている。ここでは、アーム部26は、先端部が基板部21と重ならない位置まで延出するように形成されている。   As shown in FIGS. 3 and 4, the base plate 21 further has a latch that is locked to the upright piece 3 a and the support 3 b of the ceiling panel 2 when the inspection lid 4 closes the inspection port 3. A portion 24 is formed. The latch portion 24 includes a connecting portion 25 bent with respect to the substrate portion 21, and an arm portion 26 that is bent with respect to the connecting portion 25 and is opposed to the substrate portion 21. The connecting portion 25 and the arm portion 26 are U-shaped. The space | interval of the board | substrate part 21 and the arm part 26 is a dimension in which the support part 3b of the standing piece 3a of the overlapping ceiling panel 2 and the outer edge piece 4d of the inspection cover 4 can enter. The arm portion 26 is formed on the side away from the position of the operation shaft member 11 serving as the rotation fulcrum of the locking body 12 so that the amount of movement during rotation increases. Here, the arm portion 26 is formed so as to extend to a position where the tip portion does not overlap the substrate portion 21.

掛け金部24を構成する基板部21とアーム部26との間には、点検蓋4側の外縁片4dが基板部21側に位置し、天井パネル2側の起立片3aや支持部3bがアーム部26側に位置するように挿入される。基板部21には、点検蓋4側の外縁片4dをアーム部26側に押圧する弾性片27が形成されている。弾性片27は、基板部21に、コ字状のスリットを形成し、片を切り起こすことによって形成されている。また、弾性片27は、く字状をなしてアーム部26側に突出することで、点検蓋4の外縁片4dと接触する。   Between the board part 21 and the arm part 26 constituting the latch part 24, the outer edge piece 4d on the inspection lid 4 side is located on the board part 21 side, and the standing piece 3a and the support part 3b on the ceiling panel 2 side are armed. It is inserted so that it may be located in the part 26 side. The board portion 21 is formed with an elastic piece 27 that presses the outer edge piece 4d on the inspection lid 4 side to the arm portion 26 side. The elastic piece 27 is formed by forming a U-shaped slit in the substrate portion 21 and cutting the piece up. Further, the elastic piece 27 contacts the outer edge piece 4d of the inspection lid 4 by projecting toward the arm portion 26 side in a square shape.

アーム部26には、天井パネル2側の起立片3aの先端側の支持部3bを支持する突部28が形成されている。突部28は、アーム部26の先端部を基板部21側に折曲してテーパ部を形成し、基板部21側に突出し、天井パネル2側の起立片3aの先端側の支持部3bを支持する。また、突部28は、テーパ部によって、先端が外側に向かって広がるように形成され、円滑に、起立片3aの先端側の支持部3bを、基板部21とアーム部26との間に向かい入れることができる。   The arm portion 26 is formed with a protrusion 28 that supports the support portion 3b on the distal end side of the upright piece 3a on the ceiling panel 2 side. The projecting portion 28 bends the distal end portion of the arm portion 26 toward the substrate portion 21 side to form a tapered portion, protrudes toward the substrate portion 21 side, and extends the support portion 3b on the distal end side of the standing piece 3a on the ceiling panel 2 side. To support. Further, the projecting portion 28 is formed by the taper portion so that the tip thereof is spread outward, and smoothly supports the support portion 3b on the tip side of the upright piece 3a between the substrate portion 21 and the arm portion 26. Can be put.

[点検蓋の固定方法]
図1に示すように、点検蓋4を点検口3に取り付ける際には、点検蓋4の点検口3への取り付けに先だって、点検蓋4に固定具5、すなわち操作軸部材11と係止体12とが取り付けられる。具体的に、操作軸部材11のピン部13には、パッキン19が挿入されピン部13の基端にある取付溝19aに係止される。パッキン19が取り付けられた操作軸部材11は、ピン部13の先端部が点検蓋4の部屋側となる表面側から挿通孔10に挿通される。
[How to fix the inspection lid]
As shown in FIG. 1, when attaching the inspection lid 4 to the inspection port 3, prior to attaching the inspection lid 4 to the inspection port 3, the fixture 5, that is, the operation shaft member 11 and the locking body are attached to the inspection lid 4. 12 are attached. Specifically, a packing 19 is inserted into the pin portion 13 of the operation shaft member 11 and is locked in a mounting groove 19 a at the proximal end of the pin portion 13. The operation shaft member 11 to which the packing 19 is attached is inserted into the insertion hole 10 from the surface side where the tip portion of the pin portion 13 is the room side of the inspection lid 4.

すると、点検蓋4の裏面側では、挿通孔10に挿通されたピン部13に係止体12が取り付けられる。図1及び図2に示すように、具体的には、挿通孔10を挿通したピン部13が係止体12の一対のピン支持片22,22間に挿入される。この際、ピン支持片22,22間には、ピン部13の平面13a,13aがピン支持片22,22に摺接するように挿入される。ピン部13がピン支持片22,22間に完全に挿入されたときには、ピン部13の先端部が貫通孔23から突出する。また、ピン部13の係合片15,15は、ピン支持片22,22の係合孔22a,22aに係合する。これにより、操作軸部材11と係止体12とは、一体的となる。すなわち、係止体12は、係合片15,15が係合孔22a,22aに係合することで、ピン部13からの脱落が防止された状態となる。これと共に、係止体12は、ピン部13の平面13a,13aがピン支持片22,22に挟まれると共にピン部13が貫通孔23に係合することで操作軸部材11に対する回転が規制された状態となる。   Then, on the back side of the inspection lid 4, the locking body 12 is attached to the pin portion 13 inserted through the insertion hole 10. As shown in FIGS. 1 and 2, specifically, the pin portion 13 inserted through the insertion hole 10 is inserted between the pair of pin support pieces 22, 22 of the locking body 12. At this time, the planes 13 a and 13 a of the pin portion 13 are inserted between the pin support pieces 22 and 22 so as to be in sliding contact with the pin support pieces 22 and 22. When the pin portion 13 is completely inserted between the pin support pieces 22, the tip portion of the pin portion 13 protrudes from the through hole 23. Further, the engagement pieces 15 and 15 of the pin portion 13 engage with the engagement holes 22a and 22a of the pin support pieces 22 and 22, respectively. Thereby, the operation shaft member 11 and the locking body 12 are integrated. That is, the locking body 12 is in a state where the engagement pieces 15 and 15 are engaged with the engagement holes 22a and 22a so that the pin 12 is prevented from falling off. At the same time, the locking body 12 is restricted from rotating with respect to the operation shaft member 11 by the planes 13 a and 13 a of the pin portion 13 being sandwiched between the pin support pieces 22 and 22 and the pin portion 13 engaging with the through hole 23. It becomes the state.

そして、図5(a)及び(b)に示すように、点検蓋4は、固定具5が取り付けられた状態で、点検口3に嵌合される。この際、係止体12は、操作軸部材11を、ピン頭部14の溝部18に工具を係合させて、ロック解除方向に回転させておくことで、掛け金部24を起立片3aや外縁片4dから退避した状態にしておく。点検口3に点検蓋4が嵌合されると、天井パネル2の起立片3a上側に点検蓋4の外縁片4dが重なった状態となる。点検蓋4の外縁片4dと起立片3aの支持部3bとの間には、シール材6が配設される。シール材6は、予め、外縁片4d又は支持部3bに接着剤や接着テープ等で固定されていてもよいし、点検蓋4を点検口3に嵌合させる際に、外縁片4d又は支持部3bに配置するようにしてもよい。   And as shown to Fig.5 (a) and (b), the inspection lid | cover 4 is fitted by the inspection port 3 in the state to which the fixing tool 5 was attached. At this time, the latching body 12 causes the latching portion 24 to rotate in the unlocking direction by engaging the tool with the groove portion 18 of the pin head portion 14 and rotating the operation shaft member 11 in the unlocking direction. It is in a state of being retracted from the piece 4d. When the inspection lid 4 is fitted to the inspection port 3, the outer edge piece 4 d of the inspection lid 4 overlaps the upright piece 3 a of the ceiling panel 2. A seal material 6 is disposed between the outer edge piece 4d of the inspection lid 4 and the support portion 3b of the upright piece 3a. The sealing material 6 may be fixed in advance to the outer edge piece 4d or the support portion 3b with an adhesive, an adhesive tape, or the like, and when the inspection lid 4 is fitted to the inspection port 3, the outer edge piece 4d or the support portion. You may make it arrange | position to 3b.

図6(a)及び(b)に示すように、点検蓋4が点検口3を閉塞した後に点検蓋4を点検口3にロックするには、操作軸部材11を、ピン頭部14の溝部18に工具を係合させて、ロック方向に回転させる。すると、掛け金部24は、基板部21とアーム部26との間に、点検蓋4側の外縁片4dと天井パネル2側の起立片3aの先端側の支持部3bとが挿入される。これにより、アーム部26の突部28は、下側から起立片3aの先端側の支持部3bを支持し、アーム部26側の弾性片27は、上側から点検蓋4の外縁片4dを押圧する。これにより、掛け金部24は、基板部21とアーム部26との間で、点検蓋4の外縁片4dと起立片3aの支持部3bとを挟み込み係止し、点検蓋4が天井裏側に浮き上がることを防止することができる。   As shown in FIGS. 6A and 6B, in order to lock the inspection lid 4 to the inspection port 3 after the inspection lid 4 closes the inspection port 3, the operation shaft member 11 is connected to the groove portion of the pin head 14. A tool is engaged with 18 and rotated in the locking direction. Then, in the latch portion 24, the outer edge piece 4 d on the inspection lid 4 side and the support portion 3 b on the distal end side of the standing piece 3 a on the ceiling panel 2 side are inserted between the substrate portion 21 and the arm portion 26. Thereby, the protrusion 28 of the arm portion 26 supports the support portion 3b on the distal end side of the upright piece 3a from the lower side, and the elastic piece 27 on the arm portion 26 side presses the outer edge piece 4d of the inspection lid 4 from the upper side. To do. As a result, the latch portion 24 sandwiches and locks the outer edge piece 4d of the inspection lid 4 and the support portion 3b of the upright piece 3a between the base plate portion 21 and the arm portion 26, and the inspection lid 4 rises to the back of the ceiling. This can be prevented.

上記実施の形態によれば、以下のように列挙する効果を得ることができる。
(1)固定具5において、係止体12は、点検蓋4の裏側に配置され、利用者から目に付かない位置に配置され、点検蓋の部屋側の表面には、小さな操作軸部材11のピン頭部14のみが露出しているだけである。したがって、天井のデザインと異なるピン頭部14が天井の表面側から見て視認されることを抑えることができる。すなわち、ピン頭部14は、従来の固定具の押さえ板のように、点検蓋4の浮き上がりを防止する機能を有するものではなく、小さいものであり、従って、利用者から目立たなくすることができる。
According to the above embodiment, the following effects can be obtained.
(1) In the fixture 5, the locking body 12 is disposed on the back side of the inspection lid 4 and is disposed at a position not visible to the user, and a small operation shaft member 11 is provided on the surface of the inspection lid on the room side. Only the pin head 14 is exposed. Therefore, it can suppress that the pin head 14 different from a ceiling design is visually recognized seeing from the surface side of a ceiling. That is, the pin head 14 does not have a function of preventing the inspection lid 4 from being lifted, unlike a holding plate of a conventional fixing tool, and is small, and therefore can be made inconspicuous from the user. .

(2)係止体12は、基板部21とアーム部26とで点検蓋4の外縁片4dと起立片3aの支持部3bとを挟み込むようにしたので、点検蓋4の外縁片4dと起立片3aの支持部3bとを挟み込む保持力を高くすることができる。特に、係止体12は、板金で形成されているので、樹脂成型品で形成した場合より機械的強度も高まり、保持力を高めることができる。   (2) Since the locking body 12 sandwiches the outer edge piece 4d of the inspection lid 4 and the support portion 3b of the upright piece 3a between the base plate portion 21 and the arm portion 26, the outer edge piece 4d of the inspection lid 4 stands upright. The holding force for sandwiching the support portion 3b of the piece 3a can be increased. In particular, since the locking body 12 is formed of sheet metal, the mechanical strength is increased and the holding force can be increased as compared with the case where the locking body 12 is formed of a resin molded product.

(3)係止体12は、上側から点検蓋4の外縁片4dを押圧する。また、アーム部26の突部28で、下側から起立片3aの先端側の支持部3bを持ち上げるようにして支持する。これにより、点検蓋4の外縁片4dと起立片3aの支持部3bとの間のシール材6は、基板部21とアーム部26によって所定の圧力が加わった状態で挟み込まれ、潰れた状態となる。したがって、点検蓋4の外縁片4dと起立片3aの支持部3bとの間は、密着し、確実にシールすることができる。   (3) The locking body 12 presses the outer edge piece 4d of the inspection lid 4 from above. In addition, the protruding portion 28 of the arm portion 26 supports the support portion 3b on the tip end side of the upright piece 3a so as to be lifted from below. Thereby, the sealing material 6 between the outer edge piece 4d of the inspection lid 4 and the support portion 3b of the upright piece 3a is sandwiched and collapsed with a predetermined pressure applied by the substrate portion 21 and the arm portion 26. Become. Therefore, the outer edge piece 4d of the inspection lid 4 and the support portion 3b of the upright piece 3a are in close contact with each other and can be reliably sealed.

なお、上記実施形態は、以下のように適宜変更して実施することもできる。
・図7及び図8に示すように、係止体12の掛け金部24は、コ字状でなくてもよい。具体的に、係止体12の基板部21には、掛け金部24に代わるものとして、係止片31を形成する。一方、天井パネル2の側には、起立片3aに形成された支持部3bに連続して、点検口3側を開口端としたコ字状の凹部32が形成されている。この凹部32には、点検蓋4の外縁片4dが進入されると共に、係止片31が係脱される。
In addition, the said embodiment can also be suitably changed and implemented as follows.
-As shown in FIG.7 and FIG.8, the latch part 24 of the latching body 12 does not need to be U-shaped. Specifically, a locking piece 31 is formed on the substrate portion 21 of the locking body 12 as an alternative to the latch portion 24. On the other hand, on the ceiling panel 2 side, a U-shaped recess 32 having an opening end on the inspection port 3 side is formed continuously with the support portion 3b formed on the upright piece 3a. The outer edge piece 4d of the inspection lid 4 enters the recess 32, and the locking piece 31 is engaged and disengaged.

図7に示すように、点検蓋4を点検口3に嵌合する際、係止体12は、操作軸部材11を、ピン頭部14の溝部18に工具を係合させて、ロック解除方向に回転させておくことで、係止片31が天井パネル2側の凹部32から退避した状態にしておく。点検口3に点検蓋4が嵌合されると、天井パネル2の起立片3aに連続した支持部3b上に点検蓋4の外縁片4dが重なった状態となる。そして、点検蓋4の外縁片4dと起立片3aの支持部3bとの間には、シール材6が配設される。   As shown in FIG. 7, when fitting the inspection lid 4 to the inspection port 3, the locking body 12 engages the operation shaft member 11 with the tool in the groove portion 18 of the pin head portion 14, and the unlocking direction. The locking piece 31 is in a state of being retracted from the recess 32 on the ceiling panel 2 side. When the inspection lid 4 is fitted to the inspection port 3, the outer edge piece 4 d of the inspection lid 4 is overlapped on the support portion 3 b continuous with the standing piece 3 a of the ceiling panel 2. And the sealing material 6 is arrange | positioned between the outer edge piece 4d of the inspection cover 4, and the support part 3b of the standing piece 3a.

図8に示すように、点検蓋4が点検口3を閉塞した後に点検蓋4を点検口3にロックするには、操作軸部材11を、ピン頭部14の溝部18に工具を係合させて、ロック方向に回転させる。すると、係止体12の係止片31は、天井パネル2側の凹部32に挿入され、凹部32の上側の一片32aと重なった状態となる。これにより、係止片31は、点検蓋4が浮き上がろうとしたとき、点検蓋4側の部材である係止体12の係止片31が天井パネル2側の部材である凹部32の上側の一片32aに係止されることで、点検蓋4が天井裏側に浮き上がることを防止される。   As shown in FIG. 8, in order to lock the inspection lid 4 to the inspection port 3 after the inspection lid 4 closes the inspection port 3, the operating shaft member 11 is engaged with the tool in the groove portion 18 of the pin head 14. Rotate in the locking direction. Then, the locking piece 31 of the locking body 12 is inserted into the concave portion 32 on the ceiling panel 2 side, and overlaps with the upper piece 32a of the concave portion 32. Thus, when the inspection lid 4 is about to rise, the engagement piece 31 is located above the concave portion 32 where the engagement piece 31 of the engagement body 12 which is a member on the inspection lid 4 side is a member on the ceiling panel 2 side. By being locked to the one piece 32a, the inspection lid 4 is prevented from being lifted to the ceiling back side.

・上記実施形態の例や図7の変形例の掛け金部24において、基板部21側の弾性片27が点検蓋4の外縁片4dに接触する位置とアーム部26側の突部28が天井パネル2の起立片3aの支持部3bに接触する位置とが対向していない場合を説明した。しかし、外縁片4dと支持部3bを挟み込む保持力を十分に確保できるのであれば、弾性片27と突部28の位置は、特に限定されるものではなく、例えば対向する位置に設けるようにしてもよい。   -In the latch part 24 of the example of the said embodiment and the modification of FIG. 7, the position where the elastic piece 27 by the side of the board | substrate part 21 contacts the outer edge piece 4d of the inspection cover 4, and the protrusion part 28 by the side of the arm part 26 are ceiling panels. The case where the position which contacts the support part 3b of 2 standing piece 3a is not facing was demonstrated. However, the position of the elastic piece 27 and the protrusion 28 is not particularly limited as long as a sufficient holding force for sandwiching the outer edge piece 4d and the support portion 3b can be secured. Also good.

・更に、上記実施形態の例や図7の変形例において、基板部21に突部28を設け、アーム部26に弾性片27を設けるようにしても、同様な効果を得ることができる。また、点検蓋4の外縁片4dと起立片3aの支持部3bとを挟み込む十分な保持力を実現できるのであれば、弾性片27と突部28の何れか一方を係止体12に設けるだけとしてもよい。   Furthermore, in the example of the above-described embodiment and the modification of FIG. 7, the same effect can be obtained even if the protrusion 28 is provided on the substrate portion 21 and the elastic piece 27 is provided on the arm portion 26. Further, if a sufficient holding force for sandwiching the outer edge piece 4d of the inspection lid 4 and the support portion 3b of the upright piece 3a can be realized, only one of the elastic piece 27 and the protrusion 28 is provided on the locking body 12. It is good.

・点検蓋4の外縁片4dと起立片3aの支持部3bとの間にあるシール材6は、省略してもよい。この場合、点検蓋4の外縁片4dと起立片3aの支持部3bは、間に隙間を有してもよいし、密着していてもよい。点検蓋4の外縁片4dと起立片3aの支持部3bとの間が密着している場合には、密閉性を高めることができる。   The sealing material 6 between the outer edge piece 4d of the inspection lid 4 and the support portion 3b of the upright piece 3a may be omitted. In this case, the outer edge piece 4d of the inspection lid 4 and the support portion 3b of the upright piece 3a may have a gap therebetween or may be in close contact with each other. When the outer edge piece 4d of the inspection lid 4 and the support portion 3b of the upright piece 3a are in close contact with each other, the sealing performance can be improved.

・ピン支持片22,22の基板部21から先端部までの高さは、先端部が点検蓋4の蓋板4bに接触する高さでもよいが、蓋板4bを傷付けないために、若干低くして、先端部が蓋板4bに非接触となる高さとすることが好ましい。   The height of the pin support pieces 22, 22 from the substrate portion 21 to the tip portion may be a height at which the tip portion contacts the lid plate 4b of the inspection lid 4, but is slightly lower so as not to damage the lid plate 4b. And it is preferable to make it the height which a front-end | tip part becomes non-contact with the cover plate 4b.

・更に、図9〜図11に示すように、天井点検蓋固定構造1は、回動される係止体12が点検蓋4に接触し傷を付けることを防止するカバー41が取り付けられていてもよい。このカバー41は、全体形状が略六面体であって、PP等の合成樹脂材料で成形されている。このカバー41は、一面に、ピン支持片22,22の挿入口42が形成され、内部空間が係止体12の基板部21のピン支持片22,22の略全体を収納可能な大きさに形成されている。カバー41は、挿入口42の形成された面とは反対側の面に、通気用の開口部43が形成されている。開口部43の面は、一方の相対する縁部に、張り出し部44,44が形成されている。図11に示すように、張り出し部44,44の内面は、カバー41の内部に挿入されたピン支持片22,22のガイド部22b,22bとなっている先端部が突き当たる。すなわち、開口部43の大きさは、操作軸部材11のピン部13が挿通可能でありながら、ピン部13とは反対側の挿入口42から挿入されたピン支持片22,22の先端部が開口部43の両側の張り出し部44,44の内面に突き当たる大きさとなっている。また、カバー41は、挿入口42の面から開口部43までの高さがピン支持片22,22の基端からガイド部22bが形成された先端部までの高さより低く形成されて、通気のため、基板部21と挿入口42の開口端との間に間隙が形成されるようにしている。   Further, as shown in FIGS. 9 to 11, the ceiling inspection lid fixing structure 1 is provided with a cover 41 that prevents the rotating locking body 12 from contacting the inspection lid 4 and scratching it. Also good. The cover 41 has a substantially hexahedron shape as a whole, and is formed of a synthetic resin material such as PP. The cover 41 has an insertion opening 42 for the pin support pieces 22 and 22 formed on one surface, and the internal space is sized to accommodate substantially the entire pin support pieces 22 and 22 of the board portion 21 of the locking body 12. Is formed. The cover 41 has a ventilation opening 43 on the surface opposite to the surface on which the insertion opening 42 is formed. On the surface of the opening 43, overhanging portions 44, 44 are formed on one opposing edge. As shown in FIG. 11, the inner ends of the overhang portions 44, 44 abut against the tip portions that are the guide portions 22 b, 22 b of the pin support pieces 22, 22 inserted into the cover 41. That is, the size of the opening 43 is such that the tip portions of the pin support pieces 22 and 22 inserted from the insertion opening 42 on the side opposite to the pin portion 13 can be inserted through the pin portion 13 of the operation shaft member 11. The size is such that it hits the inner surfaces of the overhanging portions 44, 44 on both sides of the opening 43. Further, the cover 41 is formed such that the height from the surface of the insertion port 42 to the opening 43 is lower than the height from the base end of the pin support pieces 22 and 22 to the tip end portion where the guide portion 22b is formed. Therefore, a gap is formed between the substrate portion 21 and the opening end of the insertion port 42.

係止体12は、ステンレス等の金属板で形成され、点検蓋4の係止体12が配設される位置は、薄い鉄板の表面に化粧用の塩化ビニル等の合成樹脂被膜を施した蓋板4bとなっている。したがって、係止体12が回転する際に、ピン支持片22,22が点検蓋4の蓋板4bに接触すると、蓋板4bに傷が付いてしまう。図11に示すように、ここでは、ピン支持片22,22がカバー41に覆われており、張り出し部44,44がピン支持片22,22の先端部と蓋板4bとの間に存在する。係止体12は、ピン支持片22,22に取り付けられたカバー41と一体的に回転し、ピン支持片22,22は、直接、蓋板4bに接触しない。すなわち、カバー41の張り出し部44,44が蓋板4bに接触するので、ピン支持片22,22が蓋板4bを傷付けることを防止することができる。   The locking body 12 is formed of a metal plate such as stainless steel, and the position where the locking body 12 of the inspection lid 4 is disposed is a lid in which a synthetic resin film such as cosmetic vinyl chloride is applied to the surface of a thin iron plate. It is a plate 4b. Therefore, if the pin support pieces 22, 22 come into contact with the cover plate 4 b of the inspection lid 4 when the locking body 12 rotates, the cover plate 4 b is damaged. As shown in FIG. 11, here, the pin support pieces 22 and 22 are covered with the cover 41, and the overhanging portions 44 and 44 exist between the tip portions of the pin support pieces 22 and 22 and the lid plate 4b. . The locking body 12 rotates integrally with the cover 41 attached to the pin support pieces 22 and 22, and the pin support pieces 22 and 22 do not directly contact the cover plate 4b. That is, since the projecting portions 44 and 44 of the cover 41 are in contact with the cover plate 4b, it is possible to prevent the pin support pieces 22 and 22 from damaging the cover plate 4b.

カバー41の挿入口42の近傍であって相対する側面には、カバー41がピン支持片22,22から外れないようにする突起45,45が形成されている。突起45,45は、ピン支持片22,22に挿入されたとき、ピン支持片22,22を形成するために基板部21に対して略90°折曲された垂直片46の側縁部に係止される。これにより、カバー41は、ピン支持片22,22から外れることを防止することができる。   Protrusions 45 and 45 that prevent the cover 41 from being detached from the pin support pieces 22 and 22 are formed on the opposite side surfaces in the vicinity of the insertion opening 42 of the cover 41. When the protrusions 45 and 45 are inserted into the pin support pieces 22 and 22, the protrusions 45 and 45 are formed on the side edges of the vertical piece 46 that is bent by approximately 90 ° with respect to the substrate portion 21 to form the pin support pieces 22 and 22. Locked. As a result, the cover 41 can be prevented from coming off from the pin support pieces 22, 22.

以上のようなカバー41は、点検蓋4の点検口3への取り付けに先だって、点検蓋4に操作軸部材11と係止体12とを取り付ける際に合わせて取り付けられる。すなわち、図9に示すように、パッキン19が取り付けられた操作軸部材11は、ピン部13の先端部を挿入端として点検蓋4の表面側から挿通孔10に挿通される。そして、点検蓋4の裏面側では、係止体12がピン支持片22,22にカバー41が取り付けられて用意されている。具体的に、カバー41は、突起45,45が垂直片46の側縁部に係止されることで脱落が防止されている。そして、挿通孔10に挿通されたピン部13には、係止体12が取り付けられる。具体的に、点検蓋4の挿通孔10を挿通したピン部13は、カバー41の開口部43からカバー41内に進入され、更に、ピン支持片22,22の間において、先端部が基板部21の貫通孔23から突出するまで挿入される。係止体12は、ピン部13の係合片15,15がピン支持片22,22の係合孔22a,22aに係合することで、操作軸部材11と一体的となる。また、点検蓋4の裏面には、カバー41、係止体12の順で位置し、ピン支持片22,22の先端部と点検蓋4の蓋板4bとの間には、カバー41の張り出し部44,44が存在することになる。なお、点検蓋4の裏面には、カバー41、係止体12の順に並ぶのであれば、ピン部13を、カバー41の開口部43に挿通させてから、ピン部13を、ピン支持片22,22の間に挿入し、突起45,45を垂直片46の側縁部に係止してもよい。   The cover 41 as described above is attached when the operation shaft member 11 and the locking body 12 are attached to the inspection lid 4 prior to the attachment of the inspection lid 4 to the inspection port 3. That is, as shown in FIG. 9, the operating shaft member 11 to which the packing 19 is attached is inserted into the insertion hole 10 from the surface side of the inspection lid 4 with the tip end portion of the pin portion 13 as an insertion end. On the back side of the inspection lid 4, the locking body 12 is prepared with the cover 41 attached to the pin support pieces 22, 22. Specifically, the cover 41 is prevented from dropping by the protrusions 45, 45 being locked to the side edge of the vertical piece 46. Then, a locking body 12 is attached to the pin portion 13 inserted through the insertion hole 10. Specifically, the pin portion 13 inserted through the insertion hole 10 of the inspection lid 4 enters the cover 41 from the opening 43 of the cover 41, and further, the tip portion between the pin support pieces 22, 22 is the substrate portion. It is inserted until it protrudes from the through hole 23 of 21. The locking body 12 is integrated with the operation shaft member 11 by engaging the engagement pieces 15 and 15 of the pin portion 13 with the engagement holes 22 a and 22 a of the pin support pieces 22 and 22. Further, the cover 41 and the locking body 12 are positioned in this order on the back surface of the inspection lid 4, and the cover 41 extends between the tip portions of the pin support pieces 22 and 22 and the lid plate 4 b of the inspection lid 4. There will be portions 44 and 44. If the cover 41 and the locking body 12 are arranged in this order on the back surface of the inspection lid 4, the pin portion 13 is inserted into the opening 43 of the cover 41 and then the pin portion 13 is inserted into the pin support piece 22. , 22, and the protrusions 45, 45 may be locked to the side edges of the vertical piece 46.

点検蓋4は、固定具5が取り付けられた状態で、点検口3に嵌合される。この後、操作軸部材11がロック方向に回転される。これにより、掛け金部24を構成する基板部21とアーム部26との間には、点検蓋4側の外縁片4dと天井パネル2側の起立片3aの先端側の支持部3bとが挿入される。これにより、掛け金部24は、基板部21とアーム部26との間で、点検蓋4の外縁片4dと起立片3aの支持部3bとを挟み込み係止し、点検蓋4が天井裏側に浮き上がることを防止することができる。   The inspection lid 4 is fitted into the inspection port 3 with the fixture 5 attached. Thereafter, the operation shaft member 11 is rotated in the locking direction. Thereby, between the board | substrate part 21 and the arm part 26 which comprise the latch part 24, the outer edge piece 4d by the side of the inspection lid 4 and the support part 3b by the side of the upright piece 3a by the side of the ceiling panel 2 are inserted. The As a result, the latch portion 24 sandwiches and locks the outer edge piece 4d of the inspection lid 4 and the support portion 3b of the upright piece 3a between the base plate portion 21 and the arm portion 26, and the inspection lid 4 rises to the back of the ceiling. This can be prevented.

上記変形例によれば、上記(1)〜(3)の効果に加えて、以下のように列挙する効果を得ることができる。
(4)天井裏の電気配線、換気設備等のメンテナンスを行うための点検口3を開ける際には、操作軸部材11をロック解除方向に回転し、点検蓋4のロックを解除してから、点検蓋4が外される。また、点検等が終了すれば、操作軸部材11をロック方向に回転し、点検蓋4のロックをする。このように点検蓋4の開閉の度に、操作軸部材11は回転操作され、これに伴い、係止体12も回転される。このように、係止体12の回転が繰り返されても、係止体12のピン支持片22,22は、カバー41で覆われ、カバー41の張り出し部44,44が蓋板4bとの間に介在するので、ピン支持片22,22の先端部が蓋板4bを傷付けることを防止することができる。また、カバー41の側壁等が点検蓋4の立ち上がり部4c等に接触しても、カバー41は、合成樹脂で形成されているので、立ち上がり部4c等を傷付けることを防止することができる。
According to the modification, in addition to the effects (1) to (3), the effects listed below can be obtained.
(4) When opening the inspection port 3 for maintenance of electrical wiring, ventilation equipment, etc. on the back of the ceiling, the operation shaft member 11 is rotated in the unlocking direction and the inspection lid 4 is unlocked. The inspection lid 4 is removed. When the inspection or the like is completed, the operation shaft member 11 is rotated in the locking direction, and the inspection lid 4 is locked. Thus, each time the inspection lid 4 is opened and closed, the operation shaft member 11 is rotated, and the locking body 12 is also rotated accordingly. As described above, even if the rotation of the locking body 12 is repeated, the pin support pieces 22 and 22 of the locking body 12 are covered with the cover 41, and the overhanging portions 44 and 44 of the cover 41 are between the cover plate 4b. Therefore, it is possible to prevent the tip portions of the pin support pieces 22, 22 from damaging the cover plate 4b. Even if the side wall or the like of the cover 41 comes into contact with the rising portion 4c or the like of the inspection lid 4, since the cover 41 is formed of synthetic resin, the rising portion 4c or the like can be prevented from being damaged.

・以上のようなカバー41は、挿入口42の開口端が係止体12の基板部21に接触する高さであってもよい。また、カバー41の材料も、係止体12の板金より軟質であれば限定されるものではなく、例えばPP以外の合成樹脂材料であってもよい。   The cover 41 as described above may have a height at which the opening end of the insertion port 42 contacts the substrate portion 21 of the locking body 12. Further, the material of the cover 41 is not limited as long as it is softer than the sheet metal of the locking body 12, and may be a synthetic resin material other than PP, for example.

・突起45,45も、ピン支持片22,22からの脱落のおそれがなければ特に設ける必要もない。例えば、一対のピン支持片22,22がカバー41の内部に圧入されるのであれば、突起45,45を省略することもできる。   The protrusions 45, 45 need not be provided if there is no risk of dropping from the pin support pieces 22, 22. For example, if the pair of pin support pieces 22 and 22 are press-fitted into the cover 41, the protrusions 45 and 45 can be omitted.

上記実施形態、および、その変形例によれば、更に、以下の技術的思想が導き出される。
(付記1)
天井点検蓋固定構造において、係止体は、基板部に一対の支持片を設け、当該一対の支持片で、前記点検蓋の外縁近傍に形成された挿通孔に挿通された操作軸部材を支持する。ここで、前記支持片は、上記ピン支持片22,22の相当する。これにより、前記操作軸部材を前記係止体と一体的に回転させることができる。
According to the above-described embodiment and its modifications, the following technical idea is further derived.
(Appendix 1)
In the ceiling inspection lid fixing structure, the locking body is provided with a pair of support pieces on the substrate portion, and the pair of support pieces supports the operation shaft member inserted through the insertion hole formed near the outer edge of the inspection lid. To do. Here, the support piece corresponds to the pin support pieces 22, 22. Thereby, the operation shaft member can be rotated integrally with the locking body.

(付記2)
前記付記1において、前記支持片は、先端側からカバーが取り付けられる。これにより、前記点検蓋と前記支持片の先端部との間に前記カバーの一部が介在することになり、前記係止体が回転したときに、前記支持片の先端部が前記点検蓋を傷付けることを防止することができる。
(Appendix 2)
In Supplementary Note 1, a cover is attached to the support piece from the distal end side. As a result, a part of the cover is interposed between the inspection lid and the distal end portion of the support piece, and when the locking body rotates, the distal end portion of the support piece covers the inspection lid. It can be prevented from being damaged.

1…天井点検蓋固定構造、2…天井パネル、2a…石膏ボード、2b…天板、3…点検口、3a…起立片、3b…支持部、4…点検蓋、4a…石膏ボード、4b…蓋板、4c…立ち上がり部、4d…外縁片、5…固定具、6…シール材、10…挿通孔、11…操作軸部材、12…係止体、13…ピン部、13a…平面、14…ピン頭部、15…係合片、16…長孔、17…変位部、18…溝部、19…パッキン、19a…取付溝、20…連結部、21…基板部、22…ピン支持片、22a…係合孔、22b…ガイド部、23…貫通孔、24…掛け金部、25…連結部、26…アーム部、27…弾性片、28…突部、31…係止片、32…凹部、32a…一片、41…カバー、42…挿入口、43…開口部、44…張り出し部、45…突起、46…垂直片。   DESCRIPTION OF SYMBOLS 1 ... Ceiling inspection lid fixing structure, 2 ... Ceiling panel, 2a ... Gypsum board, 2b ... Top plate, 3 ... Inspection port, 3a ... Standing piece, 3b ... Support part, 4 ... Inspection lid, 4a ... Gypsum board, 4b ... Cover plate, 4c ... rise portion, 4d ... outer edge piece, 5 ... fixing member, 6 ... sealing material, 10 ... insertion hole, 11 ... operating shaft member, 12 ... locking body, 13 ... pin portion, 13a ... flat surface, 14 DESCRIPTION OF SYMBOLS ... Pin head, 15 ... Engagement piece, 16 ... Long hole, 17 ... Displacement part, 18 ... Groove part, 19 ... Packing, 19a ... Mounting groove, 20 ... Connection part, 21 ... Substrate part, 22 ... Pin support piece, 22a ... engaging hole, 22b ... guide part, 23 ... through hole, 24 ... latch part, 25 ... connecting part, 26 ... arm part, 27 ... elastic piece, 28 ... protrusion, 31 ... locking piece, 32 ... concave part 32a ... one piece, 41 ... cover, 42 ... insertion port, 43 ... opening, 44 ... overhang, 45 ... projection, 4 ... vertical piece.

Claims (4)

天井の点検口に対して天井裏側から嵌合された点検蓋を固定具によって前記点検口の縁部に固定して、前記点検蓋の浮き上がりを防止する天井点検蓋固定構造において、
前記点検口の縁部には、起立片が形成されており、
前記点検蓋は、外縁近傍に挿通孔が形成されており、
前記固定具は、前記挿通孔に挿通される操作軸部材と、前記点検蓋の裏面において前記挿通孔に挿通された操作軸部材に取り付けられる係止体とを備え、
前記係止体は、前記起立片に係止される掛け金部を有し
前記起立片の先端部には、前記点検口とは反対側に折曲して支持部が形成され、
前記掛け金部は、コ字状に形成されており、前記点検蓋の外縁部と前記起立片の支持部とが重なった状態において、前記点検蓋の外縁部と前記起立片の支持部とを挟み込む
天井点検蓋固定構造。
In the ceiling inspection lid fixing structure that prevents the inspection lid from being lifted by fixing the inspection lid fitted from the back side of the ceiling to the inspection opening of the ceiling by a fixture to the edge of the inspection opening.
Standing pieces are formed at the edge of the inspection port,
The inspection lid has an insertion hole near the outer edge,
The fixture includes an operation shaft member inserted into the insertion hole, and a locking body attached to the operation shaft member inserted into the insertion hole on the back surface of the inspection lid,
The locking body has a latch portion locked to the standing piece ,
At the tip of the upright piece, a support portion is formed by bending to the side opposite to the inspection port,
The latch portion is formed in a U shape, and sandwiches the outer edge portion of the inspection lid and the support portion of the upright piece in a state where the outer edge portion of the inspection lid and the support portion of the upright piece overlap each other.
Ceiling inspection lid fixing structure.
前記掛け金部には、前記コ字状をなす相対する片の何れか一方に、それと対向する前記点検蓋の外縁部を押圧する弾性片が形成されている
請求項記載の天井点検蓋固定構造。
The latch portion, said U-shaped in one of opposite pieces forming the therewith ceiling inspection cover fixing structure according to claim 1, wherein the elastic piece which presses the outer edge portion of the inspection lid that faces is formed .
前記掛け金部には、前記コ字状をなす相対する片の何れか他方に、それと対向する前記起立片の支持部を支持する突部が形成されている
請求項記載の天井点検蓋固定構造。
The ceiling inspection lid fixing structure according to claim 2, wherein a protrusion that supports a support portion of the upstanding piece that faces the other is formed on either one of the opposing pieces having the U-shape. .
前記点検蓋の外縁部と前記起立片の支持部との間には、シール材が設けられている
請求項又は記載の天井点検蓋固定構造。
Ceiling inspection cover fixing structure of the claim 2 or 3, wherein the sealing member is provided between the supporting portion of the upstanding piece and the outer edge portion of the inspection lid.
JP2014153594A 2014-07-29 2014-07-29 Ceiling inspection lid fixing structure Active JP6280831B2 (en)

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JP3894309B2 (en) 2002-08-27 2007-03-22 株式会社ブリヂストン Cover fixing structure for ceiling inspection port
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