JP4003200B2

JP4003200B2 - Slip reduction groove cover

Info

Publication number: JP4003200B2
Application number: JP32969498A
Authority: JP
Inventors: 豊坂田; 裕高田; 賢一下中
Original assignee: Nippon Steel Corp
Current assignee: Nippon Steel Corp
Priority date: 1998-06-10
Filing date: 1998-11-19
Publication date: 2007-11-07
Anticipated expiration: 2018-11-19
Also published as: JP2000064412A

Description

【０００１】
【発明の属する技術分野】
本発明は、滑り低減溝蓋に関するものである。
【０００２】
【従来の技術】
従来、溝蓋は、道路の側溝用として道路と平行に設けられたり、あるいは、道路の横断溝用として道路を横切るように設けられた溝にそれぞれ敷設されており、これら溝蓋であっても、長スパン用と称される幅広の溝蓋である場合もあり、
この溝蓋上を車両が通行すると、素材が金属製のため、雨天等では滑る場合があり、交通事故となる恐れがあった。
【０００３】
そのため、近年では溝蓋用構造材には、パネル（表面）に滑り低減突起を取り付けて滑りを防止する手段が施されているが、その製作に極めて手間がかかり、また、主部材上のフランジ平面が、方向性によっては滑り易く、さらに損傷時には取替えが極めて大変であるという欠点があった。
【０００４】
【発明が解決しようとする課題】
そこでこの発明は、これらの各欠点を除去するために、幅広の溝蓋において滑りを低減するよう発明されたものであり、溝蓋の主部材間において、左・右交互に傾斜するように構成した補助部材を追加した溝蓋であり、あるいは、溝蓋の表面に既存の素材を利用して防滑構造とし、しかも、ダブルデッキ構造とした滑り低減溝蓋を開発することにある。
【０００５】
【課題を解決するための手段】
以上のような課題を解決するために、この発明は、幅広の溝蓋において、車両のタイヤの進行方向に対して、補助部材を平行方向にならないように配置したものであり、補助部材を斜めに配置する斜方向補助部材又は波状形補助部材を設け、あるいはその上面にはエキスパンドメタルを張設し、しかも、該溝蓋の下には大型の主部材で支えたダブルデッキ型の滑り低減溝蓋を開発するものである。
【０００６】
【発明の実施の形態】
以下、この発明の第１の実施例を図１〜２に従って説明すると、一定間隔毎に設けられ、帯状の主部材（１）を複数本と、該主部材と直交する複数本の横部材（２）とで格子状に形成された鋼製の溝蓋であり、前記主部材（１）間の各列の各格子内に、左、右の対角線状に交互に反復・曲折する斜方向補助部材（３ａ）を、隣接の列の各格子と対称的に設けた滑り低減溝蓋（Ｘ）であって、該低減溝蓋（Ｘ）を上部に設けると共に、下部に、大型の主部材（Ｙ）で支えたダブルデッキ状に形成したことを特徴とする滑り低減溝蓋から構成される。
【０００７】
次に、この発明の第２の実施例を図３〜４に基づいて説明すると、一定間隔毎に設けられ、帯状の主部材（１）を複数本と、該主部材と直交する複数本の横部材（２）とで格子状に形成された鋼製の溝蓋であり、上面に滑り低減突起を列設した前記主部材（１）間の各列の格子内に左、右の対角線状に交互に反復・曲折する斜方向補助部材（３ｂ）を、隣接の列の各格子と対称的に設けた滑り低減溝蓋（Ｘ）であって、該低減溝蓋を上部に設けると共に、下部に、大型の主部材（Ｙ）で支えたダブルデッキ状に形成したことを特徴とする滑り低減溝蓋から構成される。尚、図３には、横部材（２）の上面が、フラットなものを示しているが、横部材（２）の上面には滑り低減突起を列設したものを用いてもよい。
【０００８】
さらに、この発明の第３の実施例を図５〜６に基づいて説明すると、一定間隔毎に設けられ、上面に滑り低減突起を列設した帯状の主部材（１ａ）を複数本と、該主部材と直交する複数本の横部材（２）とで格子状に形成された鋼製の溝蓋であり、前記主部材（１ａ）間の各列の各格子内に、左、右の対角線状に交互に反復・曲折する斜方向補助部材（３ａ）を、隣接の列の各格子と対称的に設けた滑り低減溝蓋（Ｘ）であって、該低減溝蓋を上面に設けると共に、下部に、大型の主部材（Ｙ）で支えたダブルデッキ状に形成したことを特徴とする滑り低減溝蓋から構成される。
【０００９】
次に、この発明の第４の実施例を図７〜８に基づいて説明すると、一定間隔毎に設けられた、帯状の主部材（１）を複数本と、該主部材と直交する複数本の上面に滑り低減突起を列設した横部材（２ａ）とで格子状に形成された鋼製の溝蓋であり、前記主部材（１）間の各列の各格子内に、左、右の対角線状に交互に反復・曲折する上面に滑り低減突起を列設した斜方向補助部材（３ｂ）を、隣接の列の格子状と対称的に設けた滑り低減溝蓋（Ｘ）であって、該低減溝蓋を上部に設けると共に、下部に、大型の主部材（Ｙ）で支えたダブルデッキ状に形成したことを特徴とする滑り低減溝蓋から構成される。
【００１０】
さらに、この発明の第５の実施例を図９〜１０に基づいて説明すると、一定間隔毎に設けられた、上面に滑り低減突起を列設した帯状の主部材（１ａ）を複数本と、該主部材と直交する複数本の、上面に滑り低減突起を列設した横部材（２ａ）とで格子状に形成された鋼製の溝蓋であり、前記主部材間の各列の各格子内に左、右に交互に屈曲する斜方向補助部材（３ａ）を設け、隣接の列の斜方向補助部材（３ａ）とは対称的に設けた滑り低減溝蓋（Ｘ）であって、該低減溝蓋を上部に設けると共に、下部に、大型の主部材（Ｙ）で支えたダブルデッキ状に形成したことを特徴とする滑り低減溝蓋から構成される。
【００１１】
そして、この発明の第６の実施例を図１１〜１２に基づいて説明すると、一定間隔毎に設けられ、上面に滑り低減突起を列設した帯状の主部材（１ａ）を複数本と、該主部材と直交する複数本の、上面に滑り低減突起を列設した横部材（２ａ）とで格子状に形成された鋼製の溝蓋であり、上面に滑り低減突起を列設けした前記主部材間の各列の各格子内に、左、右の対角線状に交互に反復・曲折する、上面に滑り低減突起を列設した斜方向補助部材（３ｂ）を、隣接の列の各格子と対称的に設けた滑り低減溝蓋（Ｘ）であって、該低減溝蓋を上面に設けると共に、下部に、大型の主部材（Ｙ）で支えたダブルデッキ状に形成したことを特徴とする滑り低減溝蓋から構成される。
【００１２】
また、さらにこの発明の第７の実施例を図１３〜１４に基づいて説明すると、一定間隔毎に設けられた、上面に滑り低減突起を列設した帯状の主部材（１ａ）を複数本と、該主部材と直交する複数本の横部材（２）とで格子状に形成された鋼製の溝蓋であり、上面に滑り低減突起を列設した前記主部材（１ａ）間の各列の各格子内に、左、右の対角線状に交互に反復・曲折する斜方向補助部材（３ｂ）を、隣接の列の格子状と対称的に設けた滑り低減溝蓋（Ｘ）であって、該低減溝蓋を上部に設けると共に、下部に、大型の主部材（Ｙ）で支えたダブルデッキ状に形成したことを特徴とする滑り低減溝蓋から構成される。尚、図７には、横部材（２）の上面が、フラットなものを示しているが、横部材（２）の上面には滑り低減突起を列設けしてもよい。
【００１３】
次に、この発明の第８の実施例を図１５〜１６に基づいて説明すると、一定間隔毎に設けられた帯状の主部材（１）を複数本を用いて形成された鋼製の溝蓋であり、前記主部材（１）間の各列の各格子内に、左、右に交互に屈曲する波状形補助部材（３ａ）を設け、隣接の列の波状形補助部材（３ａ）とは対称的に設けた滑り低減溝蓋（Ｘ′）であって、該低減溝蓋を上部に設けると共に、下部に、大型の主部材（Ｙ）で支えたダブルデッキ状に形成したことを特徴とする滑り低減溝蓋から構成される。
【００１４】
さらに、この発明の第９の実施例を図１７〜１８に基づいて説明すると、一定間隔毎に設けられ、帯状の主部材（１）を複数本を用いて形成された鋼製の溝蓋であり、上面に滑り低減突起を列設した前記主部材（１）間の各列の各格子内に、左、右交互に反復・曲折する波状形補助部材（３ｂ）を、隣接の列の各格子と対称的に設けた滑り低減溝蓋（Ｘ′）であって、該低減溝蓋を上部に設けると共に、下部に、大型の主部材（Ｙ）で支えたダブルデッキ状に形成したことを特徴とする滑り低減溝蓋より構成される。
【００１５】
また、この発明の第１０の実施例を図１９〜２０に基づいて説明すると、一定間隔毎に設けられ、上面に滑り低減突起を列設した帯状の主部材（１ａ）を複数本用いて形成され
た鋼製の溝蓋であり、前記主部材（１ａ）間の各列の各格子内に、左、右交互に反復・曲折する波状形補助部材（３ａ）を、隣接の列の各格子と対称的に設けた滑り低減溝蓋（Ｘ′）であって、該低減溝蓋を上面に設けると共に、下部に、大型の主部材（Ｙ）で支えたダブルデッキ状に形成したことを特徴とする滑り低減溝蓋から構成される。
【００１６】
そして、次にこの発明の第１１の実施例を図２１〜２２に基づいて説明すると、一定間隔毎に設けられ、上面に滑り低減突起を列設した帯状の主部材（１ａ）を複数本を用いて形成された鋼製の溝蓋であり、上面に滑り低減突起を列設した前記主部材（１ａ）間の各列の各格子内に、左、右交互に反復・曲折する波状形補助部材（３ｂ）を設け、隣接の列の各格子と対称的に設けた滑り低減溝蓋（Ｘ′）であって、該低減溝蓋を上部に設けると共に、下部に大型の主部材（Ｙ）で支えたダブルデッキ状に形成したことを特徴とする滑り低減溝蓋から構成される。
【００１７】
さらに、この発明の第１２の実施例を図２３〜２４に基づいて説明すると、一定間隔毎に設けられ、帯状の主部材（１）を複数本を用いて形成された鋼製の溝蓋であり、該溝蓋（Ｘ″）の上面には、エキスパンドメタル（４）を張設すると共に、下部に、大型の主部材（Ｙ）で支えたダブルデッキ状に形成したことを特徴とする滑り低減溝蓋から構成される。
【００１８】
また、前記実施例に記載された滑り低減突起の形状は、図２５（Ａ）（Ｂ）（Ｃ）に示すように、全体として平面視で主部材、あるいは斜方向補助部材の長手方向に対して互いに逆向きで斜交したものを用いるものである。
【００１９】
そして、これら格子状内の２本の斜方向補助部材（３ａ）（３ｂ）は、Ｖ字状に対向するように設けてもよく（図３参照）、また、Ｘ状にクロスするように設けてもよいものである。
【００２０】
【発明の効果】
この発明によると、幅広の溝蓋において、溝蓋表面の滑り低減の効果を、主部材を設けた滑り低減突起や溝蓋の上面に張設したエキスパンドメタルや、斜方向補助部材又は波状形補助部材を取りつけることにより、如何なる車両の進行方向のタイヤに対しても滑り低減効果の向上が図れ、製作が極めて簡単であり、上部の溝蓋と下部の溝蓋とのダブルデッキ型となり、堅牢であるとともに、損傷時の取替えが容易である。
【００２１】
さらに、主部材、横部材、又は補助部材（斜方向補助部材ないしは波状形補助部材）の上面に設けた滑り低減突起が、上面に所定間隔に設けられ、かつ滑り低減突起の形状が、全体として平面視で型鋼長手方向に対して互いに逆向きで斜交したものであることにより、滑り低減性能を向上させる。
【００２２】
また、ダブルデッキ型溝蓋とすることにより重量の軽量化が図れると共に、滑り低減突起の寿命がくれば上部の溝蓋のみを定期的に交換可能とし、メンテナンスを容易にする等極めて有益なる効果を奏するものである。
【図面の簡単な説明】
【図１】本発明の第１の実施例を示す平面図である。
【図２】本発明の第１の実施例を示す正面図である。
【図３】本発明の第２の実施例を示す平面図である。
【図４】本発明の第２の実施例を示す正面図である。
【図５】本発明の第３の実施例を示す平面図である。
【図６】本発明の第３の実施例を示す側面図である。
【図７】本発明の第４の実施例を示す平面図である。
【図８】本発明の第４の実施例を示す正面図である。
【図９】本発明の第５の実施例を示す平面図である。
【図１０】本発明の第５の実施例を示す正面図である。
【図１１】本発明の第６の実施例を示す平面図である。
【図１２】本発明の第６の実施例を示す正面図である。
【図１３】本発明の第７の実施例を示す平面図である。
【図１４】本発明の第７の実施例を示す側面図である。
【図１５】本発明の第８の実施例を示す平面図である。
【図１６】本発明の第８の実施例を示す側面図である。
【図１７】本発明の第９の実施例を示す平面図である。
【図１８】本発明の第９の実施例を示す側面図である。
【図１９】本発明の第１０の実施例を示す平面図である。
【図２０】本発明の第１０の実施例を示す側面図である。
【図２１】本発明の第１１の実施例を示す平面図である。
【図２２】本発明の第１１の実施例を示す側面図である。
【図２３】本発明の第１２の実施例を示す側面図である。
【図２４】本発明の第１２の実施例を示す平面図である。
【図２５】本発明に使用する滑り低減突起の一実施例を示すものであり、（Ａ）は平面図であり、（Ｂ）は正面図であり、（Ｃ）は断面図である。
【符号の説明】
１帯状の主部材
１ａ上面に滑り低減突起を列設した主部材
２横部材
２ａ上面に滑り低減突起を列設した横部材
３ａ斜方向補助部材又は波状形補助部材〔補助部材〕
３ａ′波状形補助部材
３ｂ上面に滑り低減突起を列設した斜方向補助部材又は波状形補助部材〔補助部材〕３ｂ′波状形補助部材
４エキスパンドメタル
Ｘ滑り低減溝蓋
Ｘ′ 滑り低減溝蓋
Ｘ″ 滑り低減溝蓋
Ｙ大型の主部材
Ｚ突起[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a slip reduction groove lid.
[0002]
[Prior art]
Conventionally, the groove cover is provided in parallel with the road for the side groove of the road, or is laid in a groove provided to cross the road for the cross groove of the road. In some cases, it is a wide groove lid called long span,
When the vehicle passes over the groove lid, the material is made of metal, so it may slip in the rain or the like, which may cause a traffic accident.
[0003]
Therefore, in recent years, the structure for the groove lid has been provided with means for preventing slippage by attaching slip reduction protrusions to the panel (surface), but it takes much time to manufacture the flange cover on the main member. Depending on the direction, the flat surface is slippery and has a drawback that it is very difficult to replace when damaged.
[0004]
[Problems to be solved by the invention]
Therefore, in order to eliminate each of these drawbacks, the present invention was invented to reduce slippage in a wide groove lid, and is configured to be inclined alternately left and right between the main members of the groove lid. Another object is to develop a slip-reducing groove cover that is a groove cover with an auxiliary member added, or that has an anti-slip structure using an existing material on the surface of the groove cover and that has a double deck structure.
[0005]
[Means for Solving the Problems]
In order to solve the above-described problems, the present invention is such that an auxiliary member is arranged in a wide groove lid so as not to be parallel to the traveling direction of a vehicle tire. A double-deck type slip-reducing groove supported by a large main member under the groove lid is provided with an oblique auxiliary member or a wavy auxiliary member arranged on the upper surface, or an expanded metal is stretched on the upper surface thereof Develop a lid.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
The first embodiment of the present invention will be described below with reference to FIGS. 1 and 2. A plurality of strip-shaped main members (1) provided at regular intervals and a plurality of horizontal members ( 2) and a steel groove lid formed in a grid pattern in the grid, and in each grid in each row between the main members (1), a diagonal assist that alternately repeats and bends in the left and right diagonal lines. The member (3a) is a slip reduction groove lid (X) provided symmetrically with each lattice in the adjacent row, and the reduction groove lid (X) is provided in the upper portion, and a large main member ( It is composed of a slip reduction groove lid characterized by being formed in a double deck shape supported by Y).
[0007]
Next, a second embodiment of the present invention will be described with reference to FIGS. 3 to 4. A plurality of strip-shaped main members (1) and a plurality of orthogonal main members are provided at regular intervals. A steel groove lid formed in a grid shape with the transverse member (2), and left and right diagonal lines in the grid of each row between the main members (1) with slip reduction protrusions arranged on the upper surface. A slip-reducing groove cover (X) in which oblique direction auxiliary members (3b) that alternately repeat and bend are provided symmetrically with each grid in an adjacent row, the reduction groove cover being provided at the upper part and the lower part And a slip-reducing groove lid characterized by being formed in a double deck shape supported by a large main member (Y). In FIG. 3, the upper surface of the transverse member (2) is flat. However, the upper surface of the transverse member (2) may be provided with slip reduction protrusions arranged in a row.
[0008]
Further, when a third embodiment of the present invention is described with reference to FIGS. 5 to 6, a plurality of strip-like main members (1a) provided at regular intervals and arranged with slip reduction protrusions on the upper surface, A steel groove lid formed in a lattice shape with a plurality of transverse members (2) orthogonal to the main member, and left and right diagonal lines in each lattice in each row between the main members (1a) A slip-reducing groove cover (X) provided with a diagonal auxiliary member (3a) that alternately repeats and bends in a symmetrical manner with each lattice in an adjacent row, and the reduction groove cover is provided on the upper surface, The lower part is composed of a slip-reducing groove cover characterized by being formed in a double deck shape supported by a large main member (Y).
[0009]
Next, a fourth embodiment of the present invention will be described with reference to FIGS. 7 to 8. A plurality of strip-shaped main members (1) provided at regular intervals and a plurality of orthogonal main members are provided. And a horizontal groove (2a) with slip reduction protrusions arranged on the upper surface of the steel groove lid formed in a lattice shape in each row between the main members (1), left and right A slip-reducing groove lid (X) in which a diagonal auxiliary member (3b) having slip reduction protrusions arranged on the upper surface that alternately repeats and bends diagonally is provided symmetrically with the lattice shape of an adjacent row. The reduction groove cover is provided in the upper part, and the lower part is formed of a slip reduction groove cover formed in a double deck shape supported by a large main member (Y).
[0010]
Further, when a fifth embodiment of the present invention is described with reference to FIGS. 9 to 10, a plurality of strip-like main members (1a) provided with a slip reduction protrusion on the upper surface provided at regular intervals, Steel groove lids formed in a lattice shape with a plurality of transverse members (2a) orthogonal to the main member and arranged with slip reduction protrusions on the upper surface, and each lattice in each row between the main members A slip-reducing groove cover (X) provided symmetrically with the diagonal auxiliary member (3a) in the adjacent row, which is provided with a diagonal auxiliary member (3a) bent alternately left and right, A reduction groove lid is provided on the upper part, and a slip reduction groove cover characterized by being formed in a double deck shape supported by a large main member (Y) on the lower part.
[0011]
A sixth embodiment of the present invention will be described with reference to FIGS. 11 to 12. A plurality of strip-shaped main members (1 a) provided at regular intervals and arranged with slip reduction protrusions on the upper surface, A steel groove lid formed in a lattice shape with a plurality of transverse members (2a) having slip reduction protrusions arranged on the upper surface perpendicular to the main member, and the main members having the slip reduction protrusions provided on the upper surface. In each grid between members, diagonal auxiliary members (3b) that alternately and repeatedly bend left and right diagonally and have slip reduction projections arranged on the upper surface are connected to each grid in adjacent rows. A slip reduction groove cover (X) provided symmetrically, wherein the reduction groove cover is provided on the upper surface and formed in a double deck shape supported by a large main member (Y) at the lower part. Consists of slip reduction groove lid.
[0012]
Further, a seventh embodiment of the present invention will be described with reference to FIGS. 13 to 14. A plurality of strip-shaped main members (1a) provided with slip reduction protrusions arranged on the upper surface at regular intervals are provided. Each row between the main members (1a) is a steel groove lid formed in a lattice shape with a plurality of transverse members (2) orthogonal to the main member, and the upper surface is provided with slip reduction protrusions. A slip reduction groove lid (X) in which diagonal direction auxiliary members (3b) that alternately repeat and bend in left and right diagonal lines are provided symmetrically with the grid pattern of the adjacent row in each grid of The reduction groove cover is provided in the upper part, and the lower part is formed of a slip reduction groove cover formed in a double deck shape supported by a large main member (Y). In FIG. 7, the upper surface of the horizontal member (2) is flat, but a slip reduction protrusion may be provided in a row on the upper surface of the horizontal member (2).
[0013]
Next, an eighth embodiment of the present invention will be described with reference to FIGS. 15 to 16. A steel groove lid formed by using a plurality of strip-like main members (1) provided at regular intervals. In each lattice of the rows between the main members (1), wavy auxiliary members (3a) that are alternately bent left and right are provided, and the wavy auxiliary members (3a) in adjacent rows are A slip reduction groove cover (X ′) provided symmetrically, characterized in that the reduction groove cover is provided in the upper part and formed in a double deck shape supported by a large main member (Y) in the lower part. It consists of a slip-reducing groove lid.
[0014]
Further, a ninth embodiment of the present invention will be described with reference to FIGS. 17 to 18. The steel groove lid is provided at regular intervals and formed by using a plurality of strip-like main members (1). There is a wavy auxiliary member (3b) that repeats and bends alternately to the left and right in each row between the main members (1) having slip reduction protrusions arranged on the upper surface. A slip reduction groove cover (X ') provided symmetrically with the lattice, wherein the reduction groove cover is provided at the upper part and formed at the lower part in a double deck shape supported by a large main member (Y). It is composed of a slip-reducing groove lid that is characterized.
[0015]
Further, a tenth embodiment of the present invention will be described with reference to FIGS. 19 to 20. The tenth embodiment of the present invention is formed by using a plurality of strip-shaped main members (1a) provided at regular intervals and arranged with slip reduction protrusions on the upper surface. In each grid between the main members (1a), a wavy auxiliary member (3a) that repeats and bends alternately left and right is placed in each grid of adjacent rows. And a slip-reducing groove cover (X ′) provided symmetrically with the lower-recess groove cover provided on the upper surface and formed in a double deck shape supported by a large main member (Y) at the lower part. The slip reduction groove lid
[0016]
Next, an eleventh embodiment of the present invention will be described with reference to FIGS. 21 to 22. A plurality of strip-like main members (1a) provided at regular intervals and having slip reduction protrusions arranged on the upper surface are provided. This is a steel groove lid formed by using a wavy shape auxiliary that alternately repeats and bends left and right in each grid in each row between the main members (1a) with slip reduction protrusions arranged on the upper surface. A slip reduction groove cover (X ′) provided with a member (3b) and provided symmetrically with each lattice in an adjacent row, wherein the reduction groove cover is provided in the upper part and a large main member (Y) in the lower part It consists of a slip-reducing groove lid characterized by being formed in a double deck shape supported by.
[0017]
Further, a twelfth embodiment of the present invention will be described with reference to FIGS. 23 to 24. A steel groove lid provided at regular intervals and formed using a plurality of strip-shaped main members (1). There is a slide characterized in that an expanded metal (4) is stretched on the upper surface of the groove lid (X ″), and a double deck shape supported by a large main member (Y) is formed on the lower portion. Consists of reduced groove lid.
[0018]
Further, as shown in FIGS. 25 (A), (B), and (C), the shape of the slip reduction protrusion described in the above embodiment is as a whole with respect to the longitudinal direction of the main member or the oblique auxiliary member in plan view. In this case, the ones that are obliquely opposite to each other are used.
[0019]
The two diagonal auxiliary members (3a) and (3b) in the lattice shape may be provided so as to face each other in a V shape (see FIG. 3), or provided so as to cross in an X shape. It may be.
[0020]
【The invention's effect】
According to the present invention, in the wide groove cover, the effect of reducing the slip on the surface of the groove cover is achieved by the slip reduction protrusion provided with the main member, the expanded metal stretched on the upper surface of the groove cover, the oblique direction auxiliary member or the wavy shape auxiliary. By attaching the members, it is possible to improve the slip reduction effect for any tire in the traveling direction of the vehicle, it is extremely easy to manufacture, and it is a double deck type with an upper groove lid and a lower groove lid, which is robust In addition, it is easy to replace when damaged.
[0021]
Further, slip reduction protrusions provided on the upper surface of the main member, the lateral member, or the auxiliary member (oblique auxiliary member or wavy auxiliary member) are provided at predetermined intervals on the upper surface, and the shape of the slip reduction protrusion is as a whole. Slip reduction performance is improved by being obliquely opposite to each other in the plan steel longitudinal direction in plan view.
[0022]
In addition, the double deck type groove cover can reduce the weight, and if the life of the slip reduction protrusion is extended, it is possible to replace only the upper groove cover periodically, which makes maintenance extremely easy. It plays.
[Brief description of the drawings]
FIG. 1 is a plan view showing a first embodiment of the present invention.
FIG. 2 is a front view showing a first embodiment of the present invention.
FIG. 3 is a plan view showing a second embodiment of the present invention.
FIG. 4 is a front view showing a second embodiment of the present invention.
FIG. 5 is a plan view showing a third embodiment of the present invention.
FIG. 6 is a side view showing a third embodiment of the present invention.
FIG. 7 is a plan view showing a fourth embodiment of the present invention.
FIG. 8 is a front view showing a fourth embodiment of the present invention.
FIG. 9 is a plan view showing a fifth embodiment of the present invention.
FIG. 10 is a front view showing a fifth embodiment of the present invention.
FIG. 11 is a plan view showing a sixth embodiment of the present invention.
FIG. 12 is a front view showing a sixth embodiment of the present invention.
FIG. 13 is a plan view showing a seventh embodiment of the present invention.
FIG. 14 is a side view showing a seventh embodiment of the present invention.
FIG. 15 is a plan view showing an eighth embodiment of the present invention.
FIG. 16 is a side view showing an eighth embodiment of the present invention.
FIG. 17 is a plan view showing a ninth embodiment of the present invention.
FIG. 18 is a side view showing a ninth embodiment of the present invention.
FIG. 19 is a plan view showing a tenth embodiment of the present invention.
FIG. 20 is a side view showing a tenth embodiment of the present invention.
FIG. 21 is a plan view showing an eleventh embodiment of the present invention.
FIG. 22 is a side view showing an eleventh embodiment of the present invention.
FIG. 23 is a side view showing a twelfth embodiment of the present invention.
FIG. 24 is a plan view showing a twelfth embodiment of the present invention.
FIGS. 25A and 25B show an embodiment of a slip reduction protrusion used in the present invention, FIG. 25A is a plan view, FIG. 25B is a front view, and FIG. 25C is a cross-sectional view.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Belt-shaped main member 1a Main member which arranged slip reduction protrusion on the upper surface 2 Horizontal member 2a Lateral member which arranged slip reduction protrusion on the upper surface 3a Slanting direction auxiliary member or corrugated auxiliary member [auxiliary member]
3a 'Wave-shaped auxiliary member 3b Slant-direction auxiliary member or wave-shaped auxiliary member [auxiliary member] in which slip reduction protrusions are arranged on the upper surface 3b' Wave-shaped auxiliary member 4 Expanded metal X Slip-reducing groove cover X 'Slip-reducing groove cover X ″ Slip reduction groove cover Y Large main member Z Projection

Claims

Steel groove lids provided at regular intervals and formed in a lattice shape with a plurality of strip-shaped main members and a plurality of transverse members orthogonal to the main members, and each row between the main members In each of the grids, there is a slip-reducing groove cover in which diagonal direction auxiliary members that are alternately repeated and bent diagonally on the left and right diagonal lines are provided symmetrically with each grid of the adjacent row, A slip reduction groove lid characterized by being formed in a double deck shape provided at the upper portion and supported by a large main member at the lower portion.

It is a steel groove lid provided at regular intervals and formed in a lattice pattern with a plurality of strip-shaped main members and a plurality of transverse members orthogonal to the main members. The slip-reducing groove lid is provided with diagonal auxiliary members that are alternately repeated and bent diagonally in the left and right diagonals in each row of grids between the main members provided symmetrically with each grid of adjacent rows. The slip reduction groove cover is characterized in that the reduction groove cover is provided in the upper part and formed in a double deck shape supported by a large main member in the lower part.

A steel groove lid formed in a lattice pattern with a plurality of strip-like main members provided at regular intervals and arranged with slip reduction protrusions on the upper surface and a plurality of transverse members orthogonal to the main members. A slip-reducing groove cover provided with diagonal auxiliary members that are alternately repeated and bent diagonally in the left and right diagonals in each lattice between the main members symmetrically with each lattice in the adjacent row The slip reduction groove cover is characterized in that the reduction groove cover is provided on the upper surface and formed at the lower part in a double deck shape supported by a large main member.

A steel groove lid formed in a lattice shape with a plurality of strip-like main members provided at regular intervals and a lateral member having slip reduction protrusions arranged on the upper surfaces orthogonal to the main members. In each grid of each row between the main members, a diagonal auxiliary member in which slip reduction protrusions are arranged on the upper surface that alternately repeats and bends in the left and right diagonal lines is arranged in a grid pattern in an adjacent row. A slip reduction groove cover provided symmetrically with the reduction groove cover, wherein the reduction groove cover is provided in an upper part and formed in a double deck shape supported by a large main member in a lower part.

A grid of a plurality of strip-shaped main members arranged at regular intervals and having slip-reducing protrusions arranged on the upper surface, and a plurality of transverse members orthogonal to the main members and having slip-reducing protrusions arranged on the upper surface. A steel groove lid formed in a shape, provided with a diagonal auxiliary member that bends alternately to the left and right in each lattice of each row between the main members, and with a diagonal auxiliary member in an adjacent row A slip reduction groove cover provided symmetrically, wherein the reduction groove cover is provided at an upper part and formed at a lower part in a double deck shape supported by a large main member.

A plurality of strip-shaped main members that are provided at regular intervals and have slip-reducing protrusions arranged on the upper surface, and a plurality of transverse members that are orthogonal to the main members and that have transverse members arranged on the upper surface. A steel groove lid formed on the upper surface, which repeatedly repeats and bends diagonally in the left and right diagonals in each grid between the main members between which the slip reduction protrusions are provided on the upper surface. A slip-reducing groove cover provided with a diagonal auxiliary member having slip-reducing protrusions arranged symmetrically with each lattice in an adjacent row, the reduction-groove cover being provided on the upper surface, and a large main member on the lower part A slip-reducing groove lid, characterized in that it is formed in a double deck shape supported by

A steel groove lid formed in a lattice pattern with a plurality of strip-like main members provided at regular intervals with slip reduction protrusions arranged on the upper surface and a plurality of transverse members orthogonal to the main members In each grid between the main members with the slip reduction protrusions arranged on the upper surface, diagonal auxiliary members that alternately repeat and bend in the left and right diagonals are arranged in a grid pattern in the adjacent rows. A slip reduction groove cover provided symmetrically with the reduction groove cover, wherein the reduction groove cover is provided in an upper part and formed in a double deck shape supported by a large main member in a lower part.

A steel groove lid formed by using a plurality of strip-shaped main members provided at regular intervals, and slanted alternately to the left and right in each grid of each row between the main members. A slip-reducing groove lid provided with a direction assisting member and symmetrically provided with an oblique direction assisting member in the adjacent row, wherein the reduction groove lid is provided at the upper portion, and the lower portion is supported by a large main member. A slip-reducing groove lid characterized by being formed in a deck shape.

It is a steel groove lid provided at regular intervals and formed using a plurality of strip-shaped main members, and in each lattice in each row between the main members, the slip reduction protrusions being arranged on the upper surface, A slip-reducing groove lid provided with wavy auxiliary members that are alternately repeated and bent to the left and right symmetrically with each grid of adjacent rows. A slip-reducing groove lid characterized by being formed in a double deck shape supported by a main member.

Provided at regular intervals, a strip-shaped steel groove lid of the main member is formed with a plurality of which is arrayed a reduction projection sliding on the upper surface, in each grid of each column between the main member, left A slip-reducing groove lid provided with wavy auxiliary members that are alternately repeated and bent to the right symmetrically with each grid in the adjacent row, the reduction groove lid being provided on the upper surface, and a large main A slip-reducing groove lid characterized by being formed in a double deck shape supported by members.

A steel groove lid provided at regular intervals and formed using a plurality of strip-shaped main members with slip reduction protrusions arranged on the upper surface, between the main members having the slip reduction protrusions arranged on the upper surface. In each grid in each row, a wavy auxiliary member that repeats and bends alternately left and right is provided, and is a slip reduction groove lid provided symmetrically with each grid in the adjacent row, the reduction groove lid being A slip reduction groove lid characterized by being formed in a double deck shape provided at the upper part and supported by a large main member at the lower part.

The shape of the slip reduction protrusion is obliquely crossed in opposite directions with respect to the longitudinal direction of the main member, the transverse member, or the oblique auxiliary member or the wavy auxiliary member in plan view as a whole. The slip reduction groove cover according to 2 or 3 or 4 or 5 or 6 or 7 or 9 or 10 or 11.