JP3455651B2 - Connection structure between duct and cover - Google Patents
Connection structure between duct and coverInfo
- Publication number
- JP3455651B2 JP3455651B2 JP14016697A JP14016697A JP3455651B2 JP 3455651 B2 JP3455651 B2 JP 3455651B2 JP 14016697 A JP14016697 A JP 14016697A JP 14016697 A JP14016697 A JP 14016697A JP 3455651 B2 JP3455651 B2 JP 3455651B2
- Authority
- JP
- Japan
- Prior art keywords
- duct
- cover
- connector
- locking
- folded
- 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
- Details Of Indoor Wiring (AREA)
Description
【発明の詳細な説明】
【0001】
【発明の属する技術分野】本発明は、ダクトとカバーと
の連結構造に関し、詳しくは、カバーの上面に連結具が
存在することがないようにして、ダクトの上を歩行する
場合に、連結具が邪魔になったり、連結具を外すような
ことを回避しようとする技術に係るものである。
【0002】
【従来の技術】従来において、エアコン用等の配管を収
納するダクトに類似するものとして、図8に示す実公平
1−12493号公報のようなものがある。すなわち、
対向する親桁1aと子桁1bとからなるケーブルラック
にケーブルを敷設し、対向する親桁1aにカバー2aを
被せ、図8(b)に示すような、略逆U字状で、上下に
係止部3d,3eを一連に形成した止金具3cを、その
弾性変形能を利用して、カバー2aの上面とケーブルラ
ックの下面に係止するものである。
【0003】
【発明が解決しようとする課題】ところで、エアコン用
等の配管を収納する大型のダクトは、ビルの屋上等に設
置されることが多く、屋内にて頭上の高い位置に配設さ
れるケーブルラックと違って、その上を人が歩くことが
あり、歩行時に止金具3cが邪魔になり、止金具3cを
外してしまうことがあるという問題がある。
【0004】本発明はこのような問題に鑑みてなされた
ものであり、その目的とするところは、カバーの上面に
連結具が存在することがないようにして、ダクトの上を
歩行する場合に、連結具が邪魔になったり、連結具を外
してしまうようなことを回避しながら、カバーのいかな
る位置においても連結具による連結がおこなえるダクト
とカバーとの連結構造を提供することにある。
【0005】
【課題を解決するための手段】請求項1の発明において
は、上方が開口するとともに内部に配管がおこなわれる
ダクト1と、ダクト1の開口を閉塞するカバー2と、ダ
クト1とカバー2とを連結する連結具3を備え、カバー
2はダクト1よりも幅広に形成し、連結具3はカバー2
への引掛け部5とダクト1に係止する係止部6とを有す
るダクトとカバーとの連結構造において、カバー2の両
側縁を長手方向に連続的に内側に折り返して折返し部4
を形成し、連結具3の引掛け部5はカバー2の折返し部
4に引掛かる引掛け部5として形成し、連結具3の係止
部6はダクト1の下端に係止する係止部6として形成し
ていることを特徴とするものである。
【0006】請求項1の構成においては、カバー2に形
成した折返し部4に、連結具3の引掛け部5を引掛け、
連結具3の係止部6をダクト1の下端に係止すること
で、連結具3をダクト1の側面に位置させ、連結具3が
カバー2の上に存在するのを回避でき、外観を高めなが
ら、低い位置に施工されるダクト1の上を歩行するの
に、連結具3が邪魔になることがなく、また、歩行中に
連結具3を踏む等して連結具3を外すようなことを防止
することができ、しかも、ダクト1側には連結具3の位
置を決めるような構成を採用しなくてもよく、ダクト1
側の構成を簡素化できるものである。
【0007】
【発明の実施の形態】以下本発明の一実施の形態を図面
に基づいて詳述する。
【0008】図1は要部の斜視図を示し、図2は全体の
斜視図を示している。
【0009】ダクト1は、対向する親桁1a,1a間に
子桁1bを架設して構成され、ダクト1は支柱9,9間
に取付けられた支持桟13に支持され、ダクト1内で子
桁1b上にはエアコン用の冷媒管等が敷設され、ダクト
1の上方にカバー2が被せられてダクト1の開口を閉塞
している。このようなダクト1は図2に示すように、地
上近くに配設され、カバー2を踏んで人が歩行すること
があるものである。この場合、ダクト1とカバー2とを
連結する連結具3は、カバー2の上に存在しないようし
て、歩行に邪魔にならないようにするものである。以下
その構成を詳述する。
【0010】カバー2はダクト1の対向する親桁1a,
1a間の間隔よりも幅広に形成してあり、カバー2の両
側部には縁を折り返して折返し部4を設けている。
【0011】カバー2とダクト1とを連結する連結具3
は、図6に示すような薄板製の第1連結具3aと、図7
に示すような線材製の第2連結具3bとから構成してい
る。
【0012】第1連結具3aの上端には前面側に折返し
た引掛け部5を形成していて、この引掛け部5をカバー
2の折返し部4に引掛けて連結することができるように
なっている。第1連結具3aの下端には前方でやや上方
に向けて被接続部7を折曲げて形成している。
【0013】第2連結具3bは線材を略逆U字状に曲げ
て、上端に接続部8を形成し、接続部8を第1連結具3
aの下端の被接続部7に接続することができるようにし
ている。第2連結具3bの左右の片10,10は略ハ字
状に開き、下端が略水平に折曲げられて係止部6が形成
されている。係止部6には係止段部11が形成され、親
桁1aの下端の折返し片12に係止することができるよ
うになっている。
【0014】しかして、ダクト1の開口を塞いでいるカ
バー2の折返し部4に第1連結具3aの引掛け部5を引
掛け、第1連結具3aの被接続部7に、第2連結具3b
の接続部8を接続し、線材の左右の片10,10を近接
するように手指で弾性変形し、左右の片10,10の下
端の係止部6を下位に変位し、親桁1aの下端の折返し
片112に係止部6を楽に係止して、カバー2をダクト
1に連結するのである。
【0015】この場合、第1連結具3aの引掛け部5を
カバー2の折返し部4に引掛ける作業と、第2連結具3
bの係止部6をダクト1の下端に係止させる作業とを個
別におこなうことができるのであり、引掛け部5を折返
し部4のような狭いスペースにて引掛ける作業を、親桁
1aの折返し片12への係止作業とは無関係におこなう
ことができるのである。さらに、第1連結具3aによっ
て位置決めだけをしておき、その後、適当な時期に第2
連結具3bによる係止作業をおこなうことができ、現場
での都合に合わせて作業を選択して良好におこなうこと
ができるのである。
【0016】ところで、ダクト1の高さは、一段の親桁
1aの高さのものの他に、二段に重ねた高さのものがあ
り、又、その巾も種々のものがある。図4はその種々の
形態を示している。
【0017】そして、親桁1aを二段に重ねたダクト1
においては、図3に示すように、第1連結具3aを長く
し、第2連結具3bは上述したものと同一寸法のものを
使用するものである。
【0018】
【発明の効果】請求項1の発明においては、上方が開口
するとともに内部に配管がおこなわれるダクトと、ダク
トの開口を閉塞するカバーと、ダクトとカバーとを連結
する連結具を備え、カバーはダクトよりも幅広に形成
し、連結具はカバーへの引掛け部とダクトに係止する係
止部とを有するダクトとカバーとの連結構造において、
カバーの両側縁を長手方向に連続的に内側に折り返して
折返し部を形成し、連結具の引掛け部はカバーの折返し
部に引掛かる引掛け部として形成し、連結具の係止部は
ダクトの下端に係止する係止部として形成しているか
ら、カバーに形成した折返し部に、連結具の引掛け部を
引掛け、連結具の係止部をダクトの下端に係止すること
で、連結具をダクトの側面に位置させ、連結具がカバー
の上に存在するのを回避でき、外観を高めながら、低い
位置に施工されるダクトの上を歩行するのに、連結具が
邪魔になることがなく、また、歩行中に連結具を踏む等
して連結具を外すようなことを防止することができ、し
かも、ダクト側には連結具の位置を決めるような構成を
採用しなくてもよく、ダクト側の構成を簡素化できるも
のである。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connection structure between a duct and a cover, and more particularly, to a structure in which a connection member does not exist on an upper surface of a cover. The present invention relates to a technique for avoiding that a connecting tool gets in the way or removes a connecting tool when walking on a vehicle. 2. Description of the Related Art A conventional duct similar to a duct for accommodating a pipe for an air conditioner or the like is disclosed in Japanese Utility Model Publication No. 1-12493 shown in FIG. That is,
A cable is laid on a cable rack including opposing parent girder 1a and child girder 1b, and cover 2a is put on opposing parent girder 1a, and has a substantially inverted U-shape as shown in FIG. The metal fastener 3c formed with a series of locking portions 3d and 3e is locked to the upper surface of the cover 2a and the lower surface of the cable rack by utilizing its elastic deformation ability. [0003] By the way, large ducts for accommodating pipes for air conditioners and the like are often installed on the roof of a building or the like, and are installed indoors at a high position overhead. Unlike a cable rack, a person may walk on the cable rack, and there is a problem that the fastener 3c becomes an obstacle during walking, and the fastener 3c may be removed. [0004] The present invention has been made in view of such a problem, and an object of the present invention is to prevent a connecting tool from being present on the upper surface of a cover and to walk on a duct. It is another object of the present invention to provide a connecting structure between a duct and a cover that can be connected by a connecting tool at any position of a cover while preventing the connecting tool from obstructing or removing the connecting tool. According to the first aspect of the present invention, there is provided a duct 1 having an upper opening and a pipe formed therein, a cover 2 for closing the opening of the duct 1, a duct 1 and a cover. 2 is provided, the cover 2 is formed wider than the duct 1, and the connector 3 is
In a connection structure between a duct and a cover having a hook portion 5 for hooking to the duct and a locking portion 6 for locking to the duct 1, both side edges of the cover 2 are continuously folded inward in the longitudinal direction to form a folded portion 4.
The hook 5 of the connecting member 3 is formed as a hook 5 that hooks on the folded portion 4 of the cover 2, and the engaging portion 6 of the connecting member 3 is engaged with the lower end of the duct 1. 6 is formed. According to the first aspect of the present invention , the hook portion 5 of the connecting member 3 is hooked on the folded portion 4 formed on the cover 2.
By locking the locking portion 6 of the connector 3 to the lower end of the duct 1, the connector 3 can be positioned on the side surface of the duct 1, and the connector 3 can be prevented from being present on the cover 2. While walking on the duct 1 constructed at a low position while raising, the connecting tool 3 does not become an obstacle, and the connecting tool 3 is removed by stepping on the connecting tool 3 while walking. In addition, it is not necessary to adopt a configuration for determining the position of the connecting member 3 on the duct 1 side.
The configuration on the side can be simplified . An embodiment of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a perspective view of a main part, and FIG. 2 is a perspective view of the whole. The duct 1 is constructed by bridging a sub-girder 1b between opposing parent girders 1a, 1a. The duct 1 is supported by a support bar 13 attached between the columns 9, 9. A refrigerant pipe or the like for an air conditioner is laid on the girder 1b, and a cover 2 is placed over the duct 1 to close an opening of the duct 1. As shown in FIG. 2, such a duct 1 is arranged near the ground, and a person may step on the cover 2 to walk. In this case, the connecting member 3 for connecting the duct 1 and the cover 2 does not exist on the cover 2 so as not to hinder walking. Hereinafter, the configuration will be described in detail. [0010] The cover 2 includes a pair of main beams 1a,
The cover 2 is formed to be wider than the interval between the first and second covers 1a. A connector 3 for connecting the cover 2 and the duct 1
FIG. 7 shows a first connector 3a made of a thin plate as shown in FIG.
And a second connecting member 3b made of a wire as shown in FIG. At the upper end of the first connecting member 3a is formed a hook portion 5 which is folded back to the front side, so that the hook portion 5 can be hooked and connected to the folded portion 4 of the cover 2. Has become. At the lower end of the first connecting member 3a, the connected portion 7 is formed by bending forward and slightly upward. The second connecting member 3b is formed by bending a wire into a substantially inverted U-shape to form a connecting portion 8 at an upper end, and connecting the connecting portion 8 to the first connecting member 3b.
It can be connected to the connected part 7 at the lower end of a. The left and right pieces 10, 10 of the second connecting member 3b are opened in a substantially C-shape, and the lower end is bent substantially horizontally to form a locking portion 6. A locking step 11 is formed on the locking portion 6 so that the locking portion 6 can be locked to the folded piece 12 at the lower end of the master girder 1a. Thus, the hook portion 5 of the first connecting member 3a is hooked on the folded portion 4 of the cover 2 closing the opening of the duct 1, and the second connecting portion 7 of the first connecting member 3a is hooked. Utensil 3b
And the left and right pieces 10, 10 of the wire are elastically deformed by fingers so as to approach each other, and the locking portions 6 at the lower ends of the left and right pieces 10, 10 are displaced downward, and The locking portion 6 is easily locked to the folded piece 112 at the lower end, and the cover 2 is connected to the duct 1. In this case, the operation of hooking the hook portion 5 of the first connector 3a on the folded portion 4 of the cover 2 and the operation of hooking the second connector 3a
The operation of locking the locking portion 6 of FIG. 1B with the lower end of the duct 1 can be performed separately. The operation of hooking the hooking portion 5 in a narrow space such as the folded portion 4 can be performed by the master girder 1a. Can be performed irrespective of the work of locking to the folded piece 12. Further, only the positioning is performed by the first connector 3a, and then the second
The locking operation by the connecting tool 3b can be performed, and the operation can be selected and performed satisfactorily according to the convenience at the site. By the way, the height of the duct 1 is not limited to the height of the single-stage main girder 1a, but may be the height of a two-stage stack, and the width thereof may also be various. FIG. 4 shows various forms thereof. The duct 1 in which the parent girder 1a is stacked in two stages
In FIG. 3, as shown in FIG. 3, the first connector 3a is made longer, and the second connector 3b has the same dimensions as those described above. According to the first aspect of the present invention, there is provided a duct having an upper opening and a pipe formed therein, a cover for closing the opening of the duct, and a connecting member for connecting the duct and the cover. , The cover is formed wider than the duct, and the connecting member is a connecting structure of the duct and the cover having a hook portion to the cover and an engaging portion for engaging the duct.
The both side edges of the cover are continuously folded inward in the longitudinal direction to form a folded portion, the hook portion of the connecting tool is formed as a hook portion hooked on the folded portion of the cover, and the engaging portion of the connecting tool is a duct. Since it is formed as a locking part that locks to the lower end of the cover, the hook part of the connecting tool is hooked on the folded part formed on the cover, and the locking part of the connecting tool is locked to the lower end of the duct. The connector is located on the side of the duct, preventing the connector from being on the cover. It is possible to prevent the connector from being detached by stepping on the connector during walking, etc., and to adopt a configuration that determines the position of the connector on the duct side. Alternatively, the configuration on the duct side can be simplified.
【図面の簡単な説明】
【図1】本発明の一実施の形態の要部の斜視図である。
【図2】全体の斜視図である。
【図3】親桁を二段に重ねた場合の部分の斜視図であ
る。
【図4】(a)(b)(c)(d)(e)(f)は各々
ダクトとカバーの形態を示す概略断面図である。
【図5】部分の一部破断した斜視図である。
【図6】第1連結具を示し、(a)は正面図、(b)は
側面図、(c)は底面図である。
【図7】第2連結具を示し、(a)は正面図、(b)は
側面図、(c)は平面図である。
【図8】従来例を示し、(a)は側断面図、(b)は止
金具の斜視図である。
【符号の説明】
1 ダクト
2 カバー
3 連結具
4 折返し部
5 引掛け部
6 係止部
7 被接続部
8 接続部BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a main part of an embodiment of the present invention. FIG. 2 is an overall perspective view. FIG. 3 is a perspective view of a portion where a parent girder is stacked in two stages. FIGS. 4 (a), (b), (c), (d), (e), and (f) are schematic cross-sectional views showing the forms of a duct and a cover, respectively. FIG. 5 is a partially broken perspective view of a part. FIGS. 6A and 6B show a first connector, wherein FIG. 6A is a front view, FIG. 6B is a side view, and FIG. 6C is a bottom view. FIGS. 7A and 7B show a second connector, wherein FIG. 7A is a front view, FIG. 7B is a side view, and FIG. 7C is a plan view. 8A and 8B show a conventional example, in which FIG. 8A is a side sectional view, and FIG. 8B is a perspective view of a fastener. [Description of Signs] 1 Duct 2 Cover 3 Connecting device 4 Folded portion 5 Hook portion 6 Locking portion 7 Connected portion 8 Connection portion
───────────────────────────────────────────────────── フロントページの続き (72)発明者 武田 和久 大阪府門真市大字門真1048番地松下電工 株式会社内 (56)参考文献 特開 昭57−13912(JP,A) 特開 昭60−121905(JP,A) 実開 平3−74119(JP,U) 実開 平3−74120(JP,U) (58)調査した分野(Int.Cl.7,DB名) H02G 3/00 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Kazuhisa Takeda 1048 Kazuma, Kadoma, Osaka Prefecture Matsushita Electric Works, Ltd. (56) References JP-A-57-13912 (JP, A) JP-A-60-121905 ( JP, A) JP-A 3-74119 (JP, U) JP-A 3-74120 (JP, U) (58) Fields investigated (Int. Cl. 7 , DB name) H02G 3/00
Claims (1)
こなわれるダクトと、ダクトの開口を閉塞するカバー
と、ダクトとカバーとを連結する連結具を備え、カバー
はダクトよりも幅広に形成し、連結具はカバーへの引掛
け部とダクトに係止する係止部とを有するダクトとカバ
ーとの連結構造において、カバーの両側縁を長手方向に
連続的に内側に折り返して折返し部を形成し、連結具の
引掛け部はカバーの折返し部に引掛かる引掛け部として
形成し、連結具の係止部はダクトの下端に係止する係止
部として形成して成ることを特徴とするダクトとカバー
との連結構造。(57) [Claim 1] A cover which is provided with a duct having an upper opening and a pipe formed therein, a cover for closing the opening of the duct, and a connecting member for connecting the duct and the cover. in the connection structure between the duct and the cover having a locking portion wider form than the duct, coupling is for engaging the engaging portion and the duct to cover both side edges of the cover in the longitudinal direction
Continuously folded inward to form a folded part, the hook of the connector is formed as a hook that hooks on the folded part of the cover, and the latch of the connector is latched to the lower end of the duct A connection structure between a duct and a cover, which is formed as a part.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14016697A JP3455651B2 (en) | 1997-05-29 | 1997-05-29 | Connection structure between duct and cover |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14016697A JP3455651B2 (en) | 1997-05-29 | 1997-05-29 | Connection structure between duct and cover |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2000376595A Division JP2001169430A (en) | 2000-12-11 | 2000-12-11 | Coupling structure of duct and cover |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH10336840A JPH10336840A (en) | 1998-12-18 |
JP3455651B2 true JP3455651B2 (en) | 2003-10-14 |
Family
ID=15262425
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14016697A Expired - Fee Related JP3455651B2 (en) | 1997-05-29 | 1997-05-29 | Connection structure between duct and cover |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3455651B2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1345302A1 (en) * | 2002-03-12 | 2003-09-17 | Vergokan | Cable trough capable of supporting a person and comprising a top profile snap-fitted on the bottom profile |
GB2517133B (en) * | 2013-06-27 | 2018-07-11 | Anderton Concrete Products Ltd | Device for Securing a Lid on a Cable Trough |
-
1997
- 1997-05-29 JP JP14016697A patent/JP3455651B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH10336840A (en) | 1998-12-18 |
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