WO2023149480A1 - Protection de soufflage - Google Patents

Protection de soufflage Download PDF

Info

Publication number
WO2023149480A1
WO2023149480A1 PCT/JP2023/003242 JP2023003242W WO2023149480A1 WO 2023149480 A1 WO2023149480 A1 WO 2023149480A1 JP 2023003242 W JP2023003242 W JP 2023003242W WO 2023149480 A1 WO2023149480 A1 WO 2023149480A1
Authority
WO
WIPO (PCT)
Prior art keywords
stopper
blow
suppressor
base
piece
Prior art date
Application number
PCT/JP2023/003242
Other languages
English (en)
Japanese (ja)
Inventor
朋泰 浦嶋
Original Assignee
有限会社ネットワークジャパン
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 有限会社ネットワークジャパン filed Critical 有限会社ネットワークジャパン
Publication of WO2023149480A1 publication Critical patent/WO2023149480A1/fr

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H17/00—Fencing, e.g. fences, enclosures, corrals
    • E04H17/14—Fences constructed of rigid elements, e.g. with additional wire fillings or with posts

Definitions

  • the technology disclosed in this specification relates to a technology for suppressing dust such as fallen leaves from blowing into a predetermined site.
  • Patent Document 1 an illegal entry restraining tool for restraining illegal intruders and vehicles from entering a predetermined site.
  • This anti-trespassing device has a structure in which an elastic plate that returns to its original shape even if it is bent is attached to the upper surface of a curb placed, for example, between a private property and a sidewalk.
  • garbage such as fallen leaves may blow into a predetermined area such as a warehouse or private property.
  • a predetermined area such as a warehouse or private property.
  • garbage and the like since there is generally no curb or the like at the entrance/exit of a warehouse, it is easy for garbage and the like to blow into the garage.
  • a technique for suppressing dust or the like from blowing into a predetermined area has not been sufficiently studied.
  • This specification discloses a technology capable of solving at least part of the above-described problems.
  • the blowing suppressor disclosed in this specification includes a plate-shaped base arranged along the floor surface, a plate-shaped base that protrudes upward from the upper surface of the base, and extends along a first direction, and an elastically deformable plate-like stopper. According to this blow-in suppressing tool, the stopper can return to the projecting posture even if it is stepped on by a vehicle or the like while suppressing the intrusion of dust or the like.
  • the stopper may be formed with a plurality of holes penetrating through the stopper. According to this blow-in suppressing tool, compared to a configuration in which the stopper is not formed with a hole, for example, the flow rate of the upward airflow that collides with the stopper is reduced, so that the intrusion of dust and the like can be suppressed more effectively.
  • an aperture ratio which is a ratio of the total opening area of the plurality of holes to the area of the stopper, may be 50% or less. According to this blow-in suppressing tool, it is possible to suppress the intrusion of dust and the like while improving the durability of the stopper, compared to a configuration having an opening ratio of, for example, greater than 50%.
  • the angle of the stopper with respect to the direction along the floor surface may be 85 degrees or less when the base is placed on the floor surface. According to the present blow-in suppressing tool, compared with a configuration in which the angle of the stopper is larger than 85 degrees, for example, the generation of an upward air current that strikes the stopper and heads directly upward is suppressed, so the intrusion of dust and the like is suppressed more effectively. can.
  • the angle of the stopper may be 60 degrees or more and 80 degrees or less. According to this blow-in suppressing tool, it is possible to suppress the intrusion of dust or the like that climbs over the stopper, compared to a configuration in which the angle of the stopper is less than 60 degrees, for example. In addition, as compared with a configuration in which the angle of the stopper is greater than 80 degrees, for example, generation of an ascending air current that strikes the stopper and heads directly upward is suppressed, so that the intrusion of dust and the like can be suppressed more effectively.
  • the stopper may include a plurality of stopper pieces arranged along the first direction. According to this blowing suppressor, only the stepped stopper piece among the plurality of stopper pieces is deformed, so that damage to the entire stopper portion can be suppressed.
  • the first gap in the first direction at the projecting tip end is equal to the above-mentioned gap on the base side.
  • the configuration may be such that the gap is wider than the second gap in the first direction.
  • the base includes at least a first base piece and a second base piece that can be attached and detached between a pair of mutually adjacent stopper pieces among the plurality of stopper pieces. and the first base piece and the second base piece overlap each other when viewed in a second direction perpendicular to the first direction and parallel to the floor surface It is good also as a structure which has. According to this blow-in suppressor, it is possible to divide the blow-in suppressor into a plurality of pieces, and to prevent fine dust such as sand from entering the predetermined site through the gap formed in the base. .
  • the base may be detachable from the floor surface.
  • the blow restrainer can be removed when not needed.
  • the technology disclosed by this specification can be implemented in various forms, for example, in the form of a blowing suppression method, a blowing suppressor, and the like.
  • FIG. 1 is a perspective view showing an external configuration of a blowing suppressor 100 according to a first embodiment
  • FIG. FIG. 3 is an explanatory view showing the YZ side configuration of the blow suppressor 100
  • FIG. 11 is a perspective view showing an external configuration of a blowing suppressor 100A in a second embodiment
  • It is an explanatory view showing the YZ side configuration of the blow suppressor 100A.
  • FIG. 1 is a perspective view showing the external configuration of the blow-in suppressor 100 in the first embodiment
  • FIG. 2 is an explanatory view showing the YZ side configuration of the blow-in suppressor 100.
  • FIG. 1 shows mutually orthogonal XYZ axes for specifying directions.
  • the Z-axis positive direction is called the upward direction
  • the Z-axis negative direction is called the downward direction.
  • the blow-in suppressor 100 is arranged near the entrance of a predetermined area (for example, a factory, a garage, a warehouse, a parking lot, a street store, a gas station, or a private residence), and is for suppressing dust or the like from blowing into the predetermined area.
  • a predetermined area for example, a factory, a garage, a warehouse, a parking lot, a street store, a gas station, or a private residence
  • the dust and the like include, for example, light dust such as fallen leaves and dead leaves, fine dust such as sand, and the like. Light dust tends to be blown up by air currents, and fine dust tends to pass through narrow gaps.
  • the blowing suppressor 100 has a configuration in which a plurality of stopper parts 110 are arranged side by side along a predetermined direction (the X-axis direction in FIG. 1, hereinafter referred to as the "alignment direction"). As will be described later, the stopper components 110 adjacent to each other in the alignment direction are detachable.
  • the alignment direction is an example of the first direction in the scope of claims.
  • the stopper component 110 has a base piece 120 and a stopper piece 130 .
  • the base piece 120 is a rectangular plate-like portion extending in the row direction.
  • the bottom surface 124 of the base piece 120 is arranged to face the floor surface M (or the ground).
  • the upper surface of the base piece 120 includes a planar portion 122 and a pair of tapered surface portions 123 . Both the plane portion 122 and the tapered surface portion 123 are surfaces extending along the alignment direction.
  • the plane portion 122 is arranged between the pair of tapered surface portions 123 when viewed in the vertical direction.
  • Planar portion 122 is generally parallel to lower surface 124 of base piece 120 .
  • the tapered surface portion 123 is an inclined surface that is inclined downward with respect to the flat surface portion 122 so as to approach the lower surface 124 as it approaches the side surface of the base piece 120 .
  • the tapered surface portion 123 is formed on the base piece 120, for example, when a vehicle (not shown) crosses the blow suppressor 100, the tire of the vehicle can smoothly ride on the upper surface of the base piece 120.
  • the base piece 120 is an example of a first base piece and a second base piece in the claims.
  • a first projection 126 is formed to protrude in the alignment direction.
  • a first recess 128 recessed in the alignment direction is formed.
  • the stopper piece 130 is provided on the top surface of the base piece 120 . Specifically, it is provided on the plane portion 122 of the base piece 120 .
  • the stopper piece 130 protrudes upward from the flat portion 122 of the base piece 120, extends along the alignment direction, and is elastically deformable.
  • a lower end portion of the stopper piece 130 is embedded in the base piece 120 .
  • the stopper piece 130 is elastically deformable so that the upper end side of the stopper piece 130 is displaced in a direction perpendicular to the arranging direction (Y-axis direction, hereinafter referred to as "front-rear direction" starting from the lower end side of the stopper piece 130.
  • Y-axis direction Y-axis direction
  • the stopper piece 130 is inclined with respect to the base piece 120 (see FIG. 2). As a result, for example, by directing the surface of the stopper piece 130 that faces obliquely downward (the left surface in FIG. 2) toward the outside of the warehouse, it is possible to suppress light dust such as dead leaves that are blown toward the warehouse from being blown up. can do. In addition, by turning the obliquely upward surface (the right surface in FIG. 2) of the stopper piece 130 toward the outside of the warehouse, for example, the content displayed on the surface (e.g., "slow down", "welcome”) can be displayed. easier for people to see.
  • the content displayed on the surface e.g., "slow down", "welcome
  • Both corners of the upper end portion of the stopper piece 130 are chamfered, and a gap S is formed between the stopper pieces 130 adjacent to each other.
  • the base piece 120 and the stopper piece 130 are made of the same material (for example, a resin material such as synthetic resin, or a rubber material such as natural rubber, synthetic rubber, or recycled rubber).
  • the base piece 120 and the stopper piece 130 may be made of different materials.
  • the base piece 120 has a configuration that can be attached to and detached from the floor surface M. Specifically, as shown in FIG. 2, a plate-shaped magnet 127 (strong magnet) is joined to the lower surface 124 of the base piece 120 . On the other hand, a metal plate N is embedded in the floor surface M. As a result, the base piece 120 can be attached to and detached from the floor surface M by magnetic force. Furthermore, in this embodiment, a pair of second projections 129 projecting downward are provided on the lower surface of the magnet 127 . On the other hand, the upper surface of the metal plate N is formed with a second concave portion N1 that can be engaged with the second convex portion 129 . Both the second protrusion 129 and the second recess N1 extend along the alignment direction. In addition, when viewed in the vertical direction, the second convex portion 129 and the second concave portion N1 are arranged on both one side and the other side of the stopper piece 130 in the front-rear direction (Y-axis direction).
  • the blowing suppressor 100 has a plurality of stopper pieces 130 provided on the upper surface of a base (base piece 120) arranged on the floor. Each stopper piece 130 projects upward from the upper surface of the base, extends along the alignment direction (X-axis direction), and is elastically deformable in the form of a flat plate (see FIGS. 1 and 2).
  • a blow-in suppressor 100 is arranged, for example, near the doorway of a predetermined area (such as a warehouse).
  • the base (plurality of base pieces 120) extends continuously over the plurality of stopper pieces 130, and there is no linear gap penetrating in the front-rear direction. Therefore, it is possible to prevent fine dust such as sand from entering the predetermined site through the gap formed in the base piece 120 .
  • the first gap in the row direction (X-axis direction) on the upper end side is larger than the second gap in the row direction on the base end side (base piece 120 side). Wide (see gap S).
  • the present embodiment compared to a configuration in which the gaps between the stopper pieces 130 are uniform over the entire length of the stopper pieces 130 in the vertical direction, the intrusion of dust and the like is suppressed, and the stoppers adjacent to each other when stepped on are prevented from entering. Interference between pieces 130 can be suppressed.
  • the one base piece 120 and the other base piece 120 can be attached and detached by inserting the first convex portion 126 of one base piece 120 into the first concave portion 128 of the other base piece 120 . connected as possible.
  • the base pieces 120 adjacent to each other have portions that overlap each other when viewed in the front-rear direction (Y-axis direction).
  • the blow suppressor 100 can be divided into a plurality of pieces, and fine dust such as sand can be prevented from entering the predetermined site through the gaps formed between the base pieces 120. can be suppressed.
  • the blow-in suppressor 100 can be divided into a plurality of parts, the blow-in suppressor 100 can be arranged with a length that matches the size of the doorway of a predetermined area, for example.
  • the base piece 120 has a configuration that can be attached to and detached from the floor surface M.
  • the blow-in suppressor 100 can be removed from the floor surface when the blow-in suppressor 100 does not need to be used, such as in a season when there are few fallen leaves.
  • FIG. 3 is a perspective view showing the external configuration of the blow suppressor 100A in the second embodiment
  • FIG. 4 is an explanatory view showing the YZ side configuration of the blow suppressor 100A.
  • the blowing suppressor 100A has a configuration in which a plurality of stopper parts 110A are arranged side by side along a predetermined direction (in FIG. 3, the X-axis direction, hereinafter referred to as "arrangement direction"). As will be described later, the stopper parts 110A that are adjacent to each other in the alignment direction are detachable.
  • the stopper component 110A has a base piece 120A and a stopper piece 130A.
  • the base piece 120A is a rectangular plate-like portion extending in the row direction.
  • the bottom surface 124A of the base piece 120A is arranged to face the floor surface M (or the ground) (see FIG. 4).
  • the upper surface of the base piece 120A includes a joint portion 122A and a pair of tapered surface portions 123A. Both the joint portion 122A and the tapered surface portion 123A are surfaces extending along the alignment direction. As viewed in the vertical direction, the joint portion 122A is arranged between the pair of tapered surface portions 123A.
  • 123 A of taper surface parts are inclined surfaces which incline downward so that the lower surface 124A may be approached, so that it leaves
  • the stopper piece 130A is provided on the upper surface of the base piece 120A. Specifically, it is joined to the joint portion 122A of the base piece 120A.
  • the stopper piece 130A protrudes upward from the joint portion 122A of the base piece 120A, extends along the alignment direction, and has an elastically deformable flat plate shape.
  • the stopper piece 130A is elastically deformable so that the upper end side of the stopper piece 130A is displaced in a direction perpendicular to the direction in which the stopper piece 130A is arranged (hereinafter referred to as the "front-rear direction"), starting from the lower end side of the stopper piece 130A.
  • front-rear direction a direction perpendicular to the direction in which the stopper piece 130A is arranged
  • a plurality of holes P passing through the stopper piece 130A are formed in the stopper piece 130A.
  • the plurality of holes P have substantially the same opening shape and substantially the same opening area.
  • at least one of the opening shape and the opening area of at least some of the plurality of holes P may be different from each other.
  • the shape of the opening of the hole P is not limited to a circle, and may be an ellipse, a polygon, or the like.
  • the plurality of holes P are arranged so as to be substantially uniformly dispersed in the stopper piece 130A.
  • the plurality of holes P are arranged at regular intervals. With such a configuration, it is possible to suppress the generation of unintended air currents due to variations in the arrangement of the holes P and the shape of the openings of the stopper pieces 130A, and to suppress the intrusion of dust and the like.
  • the maximum width of the opening shape of one hole P is preferably set as appropriate according to the size of dust or the like whose entry is to be suppressed.
  • the maximum width of the opening shape of one hole P may be, for example, 5 mm or more, 10 mm or more, or 15 mm or more.
  • the maximum width of the opening shape of one hole P may be, for example, 40 mm or less, 30 mm or less, or 20 mm or less.
  • it is preferable that the maximum width of the opening shape of one hole P is larger than the thickness (for example, 4 mm) of the stopper piece 130A.
  • the distance between the upper end of the stopper piece 130A and the hole P closest to the upper end is smaller than the maximum width of the opening shape of one hole P. Moreover, it is preferable that the distance between the holes P adjacent to each other is smaller than the maximum width of the opening shape of one hole P.
  • the opening ratio which is the ratio of the total opening area of all the holes P to the area of the stopper piece 130A (area of the outer shape of the stopper piece 130A), is referred to as hole opening ratio.
  • the aperture ratio may be, for example, 10% or more, 20% or more, 30% or more, or 40% or more. Also, the aperture ratio may be, for example, 70% or less, 60% or less, 50% or less, or 40% or less.
  • the stopper piece 130A is inclined with respect to the direction perpendicular to the floor surface M (the Z-axis direction in FIG. 4). Specifically, when the base piece 120A is placed on the floor surface M, the angle ⁇ of the stopper with respect to the direction along the floor surface M (the Y-axis direction in FIG. 4) is 85 degrees or less.
  • the angle ⁇ of the stopper may be 80 degrees or less, 75 degrees or less, or 70 degrees or less. Also, the angle ⁇ of the stopper may be 50 degrees or more, 55 degrees or more, 60 degrees or more, or 65 degrees or more.
  • concave and convex portions are formed for detachably connecting with other stopper parts 110A.
  • a first convex portion 126A that protrudes in the alignment direction is formed at one end of the stopper piece 130A in the alignment direction.
  • a first recess 128A recessed in the alignment direction is formed at the other end of the stopper piece 130A in the alignment direction.
  • the stopper piece 130A is preferably made of a material having higher flexibility (elasticity) than the base piece 120A.
  • the forming material of the stopper piece 130A is, for example, a medium density fiberboard (MDF (Medium Density Fiberboard)), and the forming material of the base piece 120A is, for example, a biodegradable plastic (PLA (Poly-Lactic Acid)).
  • MDF Medium Density Fiberboard
  • PLA Poly-Lactic Acid
  • the smoke wire method is a method of applying liquid paraffin to a nichrome wire and applying an alternating voltage to generate smoke.
  • a laser sheet is used as the light source for visualizing the smoke.
  • the velocity of the airflow in the wind tunnel measurement section was set to about 4 to 8 m/s, and the artificial leaf L was flowed along with the airflow.
  • the artificial leaf L was made of paper (weight: 011 g, length: 6 cm, width: 2.2 cm).
  • the visualized smoke and artificial leaf L are imaged with a high-speed camera.
  • the high-speed camera is, for example, monochrome, and the photographing speed is 2000 fps.
  • samples a plurality of blow-in suppressors having different at least one of the presence/absence of holes P, the aperture ratio, the angle ⁇ of the stopper, and the maximum width of the opening shape of one hole P were prepared.
  • the higher the pore opening ratio the more the artificial leaf L was inhibited from climbing over the sample.
  • the closer the angle ⁇ of the stopper was to 70 degrees the more the artificial leaves L were suppressed from climbing over the sample.
  • the blow suppressors 100, 100A are configured to extend in the linear direction (X-axis direction), but are not limited to this, and may A configuration extending in a straight direction or a configuration extending in a crank shape may be used.
  • the first direction is not limited to a linear direction, but may be a curved direction, a crank shape, or the like.
  • a plurality of base pieces 120 and 120A are connected as a base, but this is not limiting, and a single plate member extending in the row direction may be used.
  • the configuration for attaching and detaching the plurality of base pieces 120 is not limited to the engagement between the first convex portion 126 and the first concave portion 128.
  • a configuration using magnetic force such as a magnet
  • the insertion protrusion and the insertion recess may be press-fitted.
  • a plurality of stopper pieces 130 and 130A are connected as stoppers, but this is not limitative, and a single plate member extending in the row direction may be used.
  • the plurality of stopper components 110, 110A have the same shape, but at least some of the plurality of stopper components 110, 110A may have different shapes.
  • the length of one stopper component 110, 110A (or base piece 120, 120A or stopper piece 130, 130A) in the direction of arrangement is equal to that of another stopper component 110, 110A (or base piece 120, 120A or stopper piece). 130, 130A) in the alignment direction.
  • one or more holes may be formed in the stopper piece 130 .
  • part of the wind blown toward the stopper piece 130 passes through the hole formed in the stopper piece 130 to form an air current. Therefore, compared to a configuration in which the stopper piece 130 is not formed with a hole, it is possible to suppress light dust such as dead leaves from rising upward and entering beyond the stopper piece 130.
  • the aperture ratio of the holes formed in the stopper piece 130 is higher on the upper end side than on the base end side of the stopper piece 130 .
  • a hole or a notch may be formed only on the upper end side of the stopper piece 130 .
  • the depth may be the same or may be different.
  • the projection length of the projection having an obtuse angle with the stopper can 123A). According to this configuration, it is possible to reduce the overall weight of the blow suppressors 100 and 100A, and prevent the blow suppressors 100 and 100A from overturning due to the blown wind.
  • the angle ⁇ of the stopper may be 90 degrees.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)

Abstract

La présente invention empêche des détritus tels que des feuilles tombées d'être soufflés dans des lieux prédéterminés. Une protection de soufflage comprend une base et une pluralité de pièces de butée. La base a la forme d'une plaque allongée disposée sur une surface de sol et s'étendant dans une première direction. La pluralité de pièces d'arrêt est disposée sur une surface supérieure de la base en juxtaposition dans la première direction. Chacune des pièces d'arrêt a la forme d'une plaque plate qui fait saillie vers le haut à partir de la surface supérieure de la base et qui s'étend le long de la première direction et qui est élastiquement déformable. Ceci permet à la protection de soufflage de récupérer même lorsqu'elle est renversée par un véhicule ou similaire tout en empêchant l'entrée de détritus et analogues.
PCT/JP2023/003242 2022-02-02 2023-02-01 Protection de soufflage WO2023149480A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022014644 2022-02-02
JP2022-014644 2022-02-02

Publications (1)

Publication Number Publication Date
WO2023149480A1 true WO2023149480A1 (fr) 2023-08-10

Family

ID=87552427

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2023/003242 WO2023149480A1 (fr) 2022-02-02 2023-02-01 Protection de soufflage

Country Status (1)

Country Link
WO (1) WO2023149480A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0270010U (fr) * 1988-11-11 1990-05-28
JPH09217308A (ja) * 1996-02-13 1997-08-19 Daikichi Suematsu コンクリートブロック
JP2002371524A (ja) * 2001-04-10 2002-12-26 Fukuoka Highway Engineering Kk 保安用表示具
JP2010532835A (ja) * 2007-07-06 2010-10-14 セルボンド リミテッド バリケード
JP2011080353A (ja) * 2010-10-19 2011-04-21 Takashi Tokuno 折り曲げても元に戻る弾力ある板を装着した縁石
JP2012188843A (ja) * 2011-03-10 2012-10-04 Metropolitan Expressway Co Ltd 工事規制器材
JP2021102882A (ja) * 2019-12-25 2021-07-15 トヨタ自動車株式会社 歩車道境界ブロック

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0270010U (fr) * 1988-11-11 1990-05-28
JPH09217308A (ja) * 1996-02-13 1997-08-19 Daikichi Suematsu コンクリートブロック
JP2002371524A (ja) * 2001-04-10 2002-12-26 Fukuoka Highway Engineering Kk 保安用表示具
JP2010532835A (ja) * 2007-07-06 2010-10-14 セルボンド リミテッド バリケード
JP2011080353A (ja) * 2010-10-19 2011-04-21 Takashi Tokuno 折り曲げても元に戻る弾力ある板を装着した縁石
JP2012188843A (ja) * 2011-03-10 2012-10-04 Metropolitan Expressway Co Ltd 工事規制器材
JP2021102882A (ja) * 2019-12-25 2021-07-15 トヨタ自動車株式会社 歩車道境界ブロック

Similar Documents

Publication Publication Date Title
WO2023149480A1 (fr) Protection de soufflage
ATE385275T1 (de) Leitplankenendbereich eines kastenbalkens
US11965295B1 (en) Portable vehicle barrier
KR101169286B1 (ko) 동물 및 식물 침입방지판
US4501411A (en) Guardrail for roadway
JP4531992B2 (ja) 棒付き凹部の空力音低減化構造
US8905671B2 (en) High speed raceway barrier
JP2002266315A (ja) 橋 梁
JP2013078271A (ja) 動物の衝突防止設備
JP2000280899A (ja) 棒付き凹部の空力音低減化構造
JP4531577B2 (ja) ホームドア用侵入防止柵及びホームドア装置
CN211874104U (zh) 一种铁路护栏
KR102167101B1 (ko) 버드세이프 투명방음판 및 이를 이용한 투명방음시설 및 투명방음시설의 시공방법
KR20140041186A (ko) 와류형성에 의한 방풍벽
JP6831761B2 (ja) 騒音低減装置
JPH08253911A (ja) 橋梁用検査車のレール
KR101880475B1 (ko) 윈드 디플렉터
JP2021138323A (ja) セクションインシュレータ、及び、セクションインシュレータ用カバー
JPH0247409A (ja) 雪庇発生防止装置
KR20130132367A (ko) 방음벽
KR200466660Y1 (ko) 도로용 차광장치
JPH09143921A (ja) 耐風構造物
US319143A (en) steigee
KR100583755B1 (ko) 도로 중앙분리대 부속시설
JP2005307432A (ja) 防風フェンス

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23749796

Country of ref document: EP

Kind code of ref document: A1