JP3205243U - Ceiling leak collector - Google Patents
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- JP3205243U JP3205243U JP2016001987U JP2016001987U JP3205243U JP 3205243 U JP3205243 U JP 3205243U JP 2016001987 U JP2016001987 U JP 2016001987U JP 2016001987 U JP2016001987 U JP 2016001987U JP 3205243 U JP3205243 U JP 3205243U
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Abstract
【課題】移動・設置・収納が容易であり、かつ公共施設の美観を損ねることのない天井漏水回収具を提供する。【解決手段】天井からの漏水を受けるロート状の漏水受部１と、漏水受部を保持し、伸縮自在であって、漏水を漏水受部から基部に導く中空の中間部２と、中間部を支持するとともに漏水を受ける基部３とを備えた天井漏水回収具である。ロート状の漏水受部１は、傘のように開閉自在であり、中心部には、天井に当接する突っ張り部４が設けられている。【選択図】図１A ceiling water leakage recovery tool that is easy to move, install, and store and that does not impair the beauty of public facilities. A funnel-shaped water leakage receiving portion that receives water leakage from a ceiling, a hollow intermediate portion that holds the water leakage receiving portion and is extendable and guides water leakage from the water leakage receiving portion to a base portion, and an intermediate portion Is a ceiling water leakage recovery tool provided with a base portion 3 that supports water leakage and receives water leakage. The funnel-shaped water leakage receiving portion 1 is openable and closable like an umbrella, and is provided with a projecting portion 4 in contact with the ceiling at the center. [Selection] Figure 1
Description
本考案は、地下鉄駅構内等の天井からの漏水を回収することができる天井漏水回収具に関する。 The present invention relates to a ceiling water leakage recovery tool that can recover water leakage from a ceiling of a subway station or the like.
地下鉄駅構内等の天井からの漏水対策として、簡易的には、ビニールシート等で漏水部分を覆う手法が採られている。
しかしこの手法では、漏水がビニールシート等の端から床に流れ落ちたり、ビニールシート等で覆うこと自体が地下鉄駅構内等の公共施設の美観を損ねる不都合があった。
As a countermeasure against water leakage from the ceiling of a subway station, a method of covering the water leakage portion with a vinyl sheet or the like is simply adopted.
However, in this method, there is a disadvantage that water leaks from the end of a vinyl sheet or the like to the floor, or the covering itself with the vinyl sheet or the like impairs the beauty of public facilities such as subway stations.
このため、これを改善した、例えば、天井からの漏水を集める集水部材に排水部材がロート状に接合されており、更に集水部材の周縁に取付部材が設けられているような天井漏水回収具が提案されている。（特許文献１参照） For this reason, for example, a drainage member is joined in a funnel shape to a water collecting member that collects water leakage from the ceiling, and a ceiling water leakage recovery in which a mounting member is provided on the periphery of the water collecting member. Ingredients have been proposed. (See Patent Document 1)
この天井漏水回収具は、漏水箇所に取付部材を粘着テープ、両面テープ、若しくはピン等の取付金具等を用いて直接取り付けたり、または天井から垂下させたフック等に引っかけたりして使用する。
また、この天井漏水回収具は、ロート状に構成されているため、集水部材上に滴下した漏水は集水部材内側を伝わり排水口へと達し、更に排水部材を伝わって、バケツ等の容器や既存の排水路等に漏水を排除するものである。
This ceiling water leakage recovery tool is used by directly attaching an attachment member to a water leakage location using an adhesive tape, double-sided tape, or a fitting such as a pin, or hooking it on a hook or the like suspended from the ceiling.
In addition, since this ceiling water leakage recovery tool is configured in a funnel shape, the water leaked on the water collecting member reaches the drainage port through the inside of the water collecting member, and further reaches the drainage member to be a container such as a bucket. And water leakage in existing drainage channels.
これまで提案された天井漏水回収具では、次のような不都合があった。
（１）漏水箇所に取付部材を粘着テープ、両面テープ、若しくはピン等の取付金具等を用いて直接取り付けたり、天井から垂下させたフック等に引っかけたりして使用しているため、天井漏水回収具の移動が容易でない。
（２）使用済の天井漏水回収具のコンパクトな収納が困難である。
（３）これまでの天井漏水回収具では、漏水を貯蔵する機能がないため、バケツ等の容器や排水路等に漏水を排除する必要がある。
（４）これまでの天井漏水回収具は、外付けの排水部材を必要とするため排水が不安定であるばかりでなく、地下鉄駅構内等の公共施設の美観を損ねる。
The ceiling water leakage recovery tools proposed so far have the following disadvantages.
(1) Since the mounting member is attached directly to the water leakage location using an adhesive tape, double-sided tape, or a mounting bracket such as a pin, or hooked onto a hook or the like suspended from the ceiling, the ceiling water leakage is recovered. It is not easy to move the tool.
(2) It is difficult to store a used ceiling leakage recovery tool in a compact manner.
(3) The conventional ceiling water leakage recovery tool has no function of storing water leakage, so it is necessary to eliminate water leakage in containers such as buckets and drainage channels.
(4) The conventional ceiling water leakage recovery tools require an external drainage member, so that the drainage is not only unstable, but also detracts from the beauty of public facilities such as subway stations.
したがって、本考案は、移動・設置・収納が容易であり、かつ公共施設の美観を損ねることのない天井漏水回収具を提供することを課題とする。 Therefore, an object of the present invention is to provide a ceiling water leakage recovery tool that is easy to move, install and store, and does not impair the aesthetics of public facilities.
本考案の上記課題を解決するための手段は、次のとおりである。
（１）天井からの漏水を受けるロート状の漏水受部と、漏水受部を保持し、漏水を漏水受部から基部に導く中空の中間部と、中間部を支持するとともに該漏水を受ける基部とを備えた天井漏水回収具。
（２）上記ロート状の漏水受部は、開閉自在であることを特徴とする（１）に記載の天井漏水回収具。
（３）上記ロート状の漏水受部には、天井に当接する突っ張り部が設けられていることを特徴とする（１）又は（２）に記載の天井漏水回収具。
（４）上記中間部は、伸縮自在であることを特徴とする（１）ないし（３）のいずれかに記載の天井漏水回収具。
（５）上記中間部は、基部に接続する第１の中空管と、上記ロート状の漏水受部に接続し第１の中空管に収納される第２の中空管から構成され伸縮自在となっていることを特徴とする（１）ないし（３）のいずれかに記載の天井漏水回収具。
（６）上記中間部には、上記第１の中空管と上記第２の中空管とを所望の位置で固定する繋止機構が設けられていることを特徴とする（５）に記載の天井漏水回収具。
（７）上記第２の中空管は、ロート状の漏水受部内まで延在し、上記突っ張り部を支持するとともに、その延在部には漏水を第２の中空管内に導く孔を有することを特徴とする（５）又は（６）に記載の天井漏水回収具。
（８）上記基部には、天井漏水を貯蔵するタンクが設けられていることを特徴とする（１）ないし（７）のいずれかに記載の天井漏水回収具。
（９）上記基部には、天井漏水を基部外に排出する排水口が設けられていることを特徴とする（１）ないし（７）のいずれかに記載の天井漏水回収具。
（１０）天井からの漏水を受けるとともに開閉自在なロート状の漏水受部と、漏水受部を保持し、漏水を漏水受部から基部に導く中空の中間部と、中間部を支持するとともに漏水を貯蔵する基部とを備えた天井漏水回収具であって、ロート状の漏水受部及び中間部は、不使用時には、基部内に収納可能である。
（１１）ロート状の漏水受部と、漏水受部を保持し、漏水を漏水受部から基部に導く中空の中間部と、中間部を支持するとともに漏水を貯蔵する基部とを備えた天井漏水回収具であって、ロート状の漏水受部及び中間部の周囲にカバーを巻き付けることによりサインポールとしても活用することができる。
Means for solving the above-mentioned problems of the present invention are as follows.
(1) A funnel-shaped water leakage receiving portion that receives water leakage from the ceiling, a hollow intermediate portion that holds the water leakage receiving portion and guides water leakage from the water leakage receiving portion to the base portion, and a base portion that supports the intermediate portion and receives the water leakage A ceiling water leak recovery tool.
(2) The above-mentioned funnel-shaped water leakage receiving part can be opened and closed freely.
(3) The ceiling water leakage collecting part according to (1) or (2), wherein the funnel-shaped water leakage receiving part is provided with a projecting part in contact with the ceiling.
(4) The ceiling leakage recovery tool according to any one of (1) to (3), wherein the intermediate portion is extendable.
(5) The intermediate portion is composed of a first hollow tube connected to the base and a second hollow tube connected to the funnel-shaped water leakage receiving portion and housed in the first hollow tube. The ceiling water leakage recovery tool according to any one of (1) to (3), characterized in that it is free.
(6) The intermediate portion is provided with a locking mechanism for fixing the first hollow tube and the second hollow tube at a desired position. Ceiling water leakage recovery tool.
(7) The second hollow tube extends to the inside of the funnel-shaped water leakage receiving portion and supports the stretched portion, and the extending portion has a hole for guiding the water leakage into the second hollow tube. (5) or (6) is a ceiling leakage recovery tool according to (6).
(8) The ceiling leakage recovery tool according to any one of (1) to (7), wherein a tank for storing ceiling leakage is provided at the base.
(9) The ceiling leakage recovery tool according to any one of (1) to (7), wherein the base is provided with a drain outlet for discharging the ceiling leakage to the outside of the base.
(10) A funnel-shaped leak receiving part that receives water leakage from the ceiling and that can be opened and closed, a hollow intermediate part that holds the leakage receiving part, guides the leakage from the leakage receiving part to the base, and supports the intermediate part and leaks water. And a funnel-shaped leak receiving part and an intermediate part that can be stored in the base when not in use.
(11) Ceiling water leakage comprising a funnel-shaped water leakage receiving portion, a hollow intermediate portion that holds the water leakage receiving portion and guides the water leakage from the water leakage receiving portion to the base, and a base that supports the intermediate portion and stores the water leakage It is a collection tool, and can also be used as a sign pole by wrapping a cover around the funnel-shaped leak receiving part and the intermediate part.
本考案に係る天井漏水回収具によれば、次のような効果が得られる。
（１）天井漏水回収具の移動・設置・収納が容易である。
（２）公共施設の美観を損ねることがない。
（３）天井漏水回収具からの水漏れがないため、公共施設での汚水の飛散がない。
（４）突っ張り部を有するため安定かつ確実に設置することができる。
（５）ロート状の漏水受部の集水かさに装飾を施すことにより、公共施設での情報発信が可能となる。
（６）ロート状の漏水受部は、開閉自在であるため、天井漏水回収具の不使用時には、基部内に収納可能である。
（７）ロート状の漏水受部及び中間部の周囲にカバーを巻き付けることによりサインポールとしても活用することができるため、グラフィックや情報発信が可能となる。
According to the ceiling leak detector according to the present invention, the following effects can be obtained.
(1) It is easy to move, install and store the ceiling water leakage recovery tool.
(2) Do not detract from the beauty of public facilities.
(3) Since there is no water leak from the ceiling leak collector, there is no scattering of sewage in public facilities.
(4) Since it has a stretched portion, it can be installed stably and reliably.
(5) By decorating the water collecting cap of the funnel-shaped water leakage receiving part, it is possible to transmit information in public facilities.
(6) Since the funnel-shaped water leakage receiving portion can be opened and closed, it can be stored in the base when the ceiling water leakage recovery tool is not used.
(7) Since a cover can be wound around the funnel-shaped water leakage receiving part and the intermediate part, it can be used as a sign pole, so that graphics and information can be transmitted.
（天井漏水回収具の基本構成）
図１に本考案に係る天井漏水回収具の模式図を示す。
本考案に係る天井漏水回収具の基本構成は、天井からの漏水を受けるロート状の漏水受部１と、漏水受部を保持し、漏水を漏水受部から基部に導く中空の中間部２と、中間部を支持するとともに漏水を受ける基部３とからなる。
(Basic configuration of the ceiling leak detector)
FIG. 1 shows a schematic diagram of a ceiling leakage recovery tool according to the present invention.
The basic configuration of the ceiling water leakage recovery tool according to the present invention includes a funnel-shaped water leakage receiving portion 1 that receives water leakage from the ceiling, a hollow intermediate portion 2 that holds the water leakage receiving portion and guides the water leakage from the water leakage receiving portion to the base. And a base 3 that supports the middle portion and receives water leakage.
ロート状の漏水受部は、漏水部分を取り囲むように配置される。本考案に係る天井漏水回収具は、天井から少し離れた高さで自立させてもよいし、図１に示すようにロート状の漏水受部の突っ張り部４を設けて、床と天井の間で固定してもよい。
以下、天井漏水回収具の実施形態について詳細に説明する。
The funnel-shaped water leakage receiving portion is disposed so as to surround the water leakage portion. The ceiling water leakage recovery tool according to the present invention may be self-supporting at a height slightly away from the ceiling, or provided with a funnel-shaped water leakage receiving portion 4 as shown in FIG. It may be fixed with.
Hereinafter, embodiments of the ceiling water leakage recovery tool will be described in detail.
（ロート状の漏水受部）
図２は、天井からの漏水を受けるロート状の漏水受部１の一例を示す図面である。
ロート状の漏水受部は、漏水部分を覆うように集水かさを配置し、突っ張り部４により、天井と床との間に固定されている。天井に接する突っ張り部４は、滑りにくい素材、形状を有しており、天井漏水回収具は、突っ張り部４が天井を突っ張ることで固定される。
(Funnel-shaped water leak receiving part)
FIG. 2 is a drawing showing an example of a funnel-shaped water leakage receiving portion 1 that receives water leakage from the ceiling.
The funnel-shaped water leakage receiving portion has a water collecting cap disposed so as to cover the water leakage portion, and is fixed between the ceiling and the floor by the strut portion 4. The strut 4 in contact with the ceiling has a non-slip material and shape, and the ceiling water leakage recovery tool is fixed by the strut 4 stretching the ceiling.
漏水は、集水かさで集水され、集水かさの内側を伝い、突っ張り部４に連なる中空管に設けた孔を通って中空の中間部２へ送られる。
ロート状の漏水受部の集水かさは、必ずしも開閉自在である必要はないが、不使用時に収納を予定している場合には開閉自在であるのが好ましい。
The leaked water is collected by the water collecting bulk, travels along the inside of the water collecting bulk, and is sent to the hollow intermediate section 2 through the hole provided in the hollow pipe connected to the projecting section 4.
The water collecting cap of the funnel-shaped water leakage receiving portion does not necessarily need to be openable / closable, but is preferably openable / closable when storage is planned when not in use.
図３は、漏水受部における集水かさの開閉機構を説明するものである。
図３（ａ）は、留め具を上方に押し上げて、集水かさを開いた状態を示すものであり、留め具は、ロックによりラッチされる。
図３（ｂ）は、ロックによるラッチを外し、留め具を下方に引き下げて、集水かさを閉じた状態を示すものである。
この天井漏水回収具は、非使用時には閉じてコンパクトに収納することができる。
FIG. 3 is a diagram for explaining a mechanism for opening and closing the water collecting umbrella in the water leakage receiving portion.
FIG. 3A shows a state in which the catch is pushed up to open the water collecting cap, and the catch is latched by a lock.
FIG. 3 (b) shows a state in which the latch by the lock is removed, the fastener is pulled down, and the water collecting cap is closed.
This ceiling water leakage recovery tool can be closed and stored compactly when not in use.
（天井漏水回収具の中間部）
図４は、天井漏水回収具の中間部並びに中間部における伸縮機構の一例を示す。中間部は、ロート状の漏水受部の高さ調節のために、伸縮自在である必要がある。
突っ張り部４を利用する場合には、中間部の伸縮により、天井と床との間で天井漏水回収具を固定することができる。
(Intermediate part of the ceiling leak detector)
FIG. 4 shows an example of an expansion / contraction mechanism in the middle part and the middle part of the ceiling water leakage recovery tool. The intermediate portion needs to be extendable in order to adjust the height of the funnel-shaped water leakage receiving portion.
When the strut 4 is used, the ceiling water leakage recovery tool can be fixed between the ceiling and the floor by extending and contracting the intermediate portion.
中間部は、基部に接続する第１の中空管５と、ロート状の漏水受部に接続し第１の中空管に収納される第２の中空管６から構成され、伸縮自在となっている。
集水した漏水は、第１及び第２の中空管中を落下して基部に至る。
The intermediate portion is composed of a first hollow tube 5 connected to the base portion and a second hollow tube 6 connected to the funnel-shaped water leakage receiving portion and accommodated in the first hollow tube, and is extendable and retractable. It has become.
The collected water leaks in the first and second hollow tubes and reaches the base.
さらに中間部には、第１の中空管５と第２の中空管６とを所望の位置で固定する繋止機構７が設けられている。
図４（ａ）は、回転締め付け具で固定するネジ式の繋止機構を例示している。また、図４（ｂ）は、レバーで固定するレバー式の繋止機構を例示している。
Further, a locking mechanism 7 for fixing the first hollow tube 5 and the second hollow tube 6 at a desired position is provided at the intermediate portion.
FIG. 4A illustrates a screw-type locking mechanism that is fixed by a rotary fastening tool. FIG. 4B illustrates a lever-type locking mechanism that is fixed by a lever.
（天井漏水回収具の基部）
天井漏水回収具の基部は、中間部を支持するとともに漏水を受ける機能を有する。
基部には図５（ａ）に示すように、内部に天井漏水を貯蔵するタンクを収蔵することができる。
また、図５（ｂ）に示すように、タンクの下方に排水口８を設け、排水パイプにより排水溝に排水することもできる。
(Base of ceiling water leakage recovery tool)
The base part of the ceiling water leakage recovery tool has a function of supporting the intermediate part and receiving water leakage.
As shown in FIG. 5A, a tank for storing ceiling leakage can be stored in the base.
Moreover, as shown in FIG.5 (b), the drain port 8 can be provided below a tank, and it can also drain to a drain ditch with a drain pipe.
（天井漏水回収具の使用例）
図６は、本考案に係る天井漏水回収具の使用方法を例示する図面である。
１ 地下鉄駅構内で漏水を発見。
２ 駅員が、小さく折りたたみ収縮された天井漏水回収具を持参。
３ ロート状の漏水受部を開き、中間部を伸ばして天井と床との間に天井漏水回収具を設置。排水が可能な場所であれば基部の排出口へ排水パイプを取り付けることもできる。
４ 設置終了。
(Usage example of ceiling leakage recovery tool)
FIG. 6 is a drawing illustrating a method of using a ceiling water leakage recovery tool according to the present invention.
1 A leak was found in the subway station.
2 The station staff bring a small leaked ceiling water leakage recovery tool.
3 Open the funnel-shaped water leakage receiving part and extend the middle part to install a ceiling water leakage recovery tool between the ceiling and the floor. A drainage pipe can be attached to the outlet of the base if it can be drained.
4 Installation finished.
（天井漏水回収具の変形例）
天井漏水回収具の変形例を図７に示す。
図７（ａ）に示す天井漏水回収具では、ロート状の漏水受部が円錐構造となっており、基部３は持ち手のついた箱型のタンク構造となっている。
また、図７（ｂ）に示す天井漏水回収具では、ロート状の漏水受部及び基部が共に半球構造となっており、図７（ｃ）に示す天井漏水回収具では、ロート状の漏水受部及び基部が共に角錐構造となっている。
ロート状の漏水受部は必ずしも開閉自在である必要はない。
(Modified example of ceiling water leakage recovery tool)
A modification of the ceiling water leakage recovery tool is shown in FIG.
In the ceiling water leakage recovery tool shown in FIG. 7A, the funnel-shaped water leakage receiving portion has a conical structure, and the base portion 3 has a box-shaped tank structure with a handle.
Moreover, in the ceiling water leakage collection tool shown in FIG. 7B, both the funnel-shaped water leakage receiving portion and the base have a hemispherical structure. In the ceiling water leakage collection device shown in FIG. Both the base and the base have a pyramid structure.
The funnel-shaped water leakage receiving portion is not necessarily openable and closable.
（天井漏水回収具の収納例）
図８は、本考案に係る天井漏水回収具の収納例を示す図面である。この収納例では、基部の高さを高くして、閉じたロート状の漏水受部及び縮めた中間部を基部の中に収納している。すなわち、基部は非使用時には天井漏水回収具の収納ケースとなる。
このため、多数の天井漏水回収具を倉庫等の収納場所に、効率よく保管することができる。
(Example of storage of ceiling leakage detector)
FIG. 8 is a view showing an example of storing the ceiling water leakage recovery tool according to the present invention. In this storage example, the height of the base is increased, and the closed funnel-shaped leak receiving part and the contracted intermediate part are stored in the base. That is, the base portion serves as a storage case for the ceiling water leakage recovery tool when not in use.
For this reason, many ceiling water leak collection tools can be efficiently stored in a storage place such as a warehouse.
（天井漏水回収具の応用例）
図９は、本考案に係る天井漏水回収具の応用例を示す図面である。この応用例では、ロート状の漏水受部及び中間部の周囲にカバーを巻き付けることにより、天井漏水回収具として使用するとともに、サインポールとしても利用することができる。
このため、天井漏水回収具を収納する手間が省けるとともに、グラフィックや情報発信が可能となる。
なお、グラフィックや情報発信のため、ロート状の漏水受部及び中間部の周囲にカバーを巻き付けることなく、天井漏水回収具に表示板等を単に取り付けることもできる。
(Application examples of ceiling water leakage recovery tools)
FIG. 9 is a drawing showing an application example of a ceiling water leakage recovery tool according to the present invention. In this application example, a cover is wound around the funnel-shaped water leakage receiving portion and the intermediate portion, so that it can be used as a ceiling water leakage recovery tool and also as a sign pole.
For this reason, the trouble of storing the ceiling water leakage recovery tool can be saved, and graphic and information transmission can be performed.
In addition, a display board etc. can also be simply attached to a ceiling water leakage collection tool, without winding a cover around a funnel-shaped water leakage receiving part and an intermediate part for graphic and information transmission.
以上、本考案に係る天井漏水回収具について好適な実施形態を例示して、その構造を説明したが、これらの実施形態は本考案の技術的範囲を限定するものではなく、実用新案登録請求の範囲に記載された本考案の要旨を逸脱しない範囲内で各種の変更や修正を加えることができることは言うまでもないことである。 As described above, the preferred embodiments of the ceiling water leakage recovery tool according to the present invention have been exemplified and the structure thereof has been described, but these embodiments do not limit the technical scope of the present invention, and the utility model registration request is requested. It goes without saying that various changes and modifications can be made without departing from the scope of the present invention described in the scope.
１ ロート状の漏水受部
２ 中間部
３ 基部
４ 突っ張り部
５ 第１の中空管
６ 第２の中空管
７ 繋止機構
８ 排水口
DESCRIPTION OF SYMBOLS 1 Funnel-shaped water leak receiving part 2 Middle part 3 Base part 4 Stretching part 5 1st hollow pipe 6 2nd hollow pipe 7 Locking mechanism 8 Drainage port
Claims (11)
A funnel-shaped water leakage receiving portion that receives water leakage from the ceiling, a hollow intermediate portion that holds the water leakage receiving portion and guides water leakage from the water leakage receiving portion to the base portion, and a base portion that supports the intermediate portion and stores the water leakage A ceiling water leakage collecting tool comprising: a water leakage receiving part having a funnel shape and a sign pole by wrapping a cover around the funnel water leakage receiving part and the intermediate part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016001987U JP3205243U (en) | 2016-04-28 | 2016-04-28 | Ceiling leak collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016001987U JP3205243U (en) | 2016-04-28 | 2016-04-28 | Ceiling leak collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP3205243U true JP3205243U (en) | 2016-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2016001987U Expired - Fee Related JP3205243U (en) | 2016-04-28 | 2016-04-28 | Ceiling leak collector |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019197014A (en) * | 2018-05-11 | 2019-11-14 | 株式会社大林組 | Testing device and testing method |
| KR102269389B1 (en) * | 2020-12-11 | 2021-06-24 | 김종규 | Apparatus for drainage on multi-layer construction site |
-
2016
- 2016-04-28 JP JP2016001987U patent/JP3205243U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019197014A (en) * | 2018-05-11 | 2019-11-14 | 株式会社大林組 | Testing device and testing method |
| JP7110524B2 (en) | 2018-05-11 | 2022-08-02 | 株式会社大林組 | Test equipment and test method |
| KR102269389B1 (en) * | 2020-12-11 | 2021-06-24 | 김종규 | Apparatus for drainage on multi-layer construction site |
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