JP4345076B2 - Groove lid for concrete U-shaped groove block - Google Patents

Groove lid for concrete U-shaped groove block Download PDF

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Publication number
JP4345076B2
JP4345076B2 JP2000261867A JP2000261867A JP4345076B2 JP 4345076 B2 JP4345076 B2 JP 4345076B2 JP 2000261867 A JP2000261867 A JP 2000261867A JP 2000261867 A JP2000261867 A JP 2000261867A JP 4345076 B2 JP4345076 B2 JP 4345076B2
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Japan
Prior art keywords
groove
lid
shaped groove
concrete
cover
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JP2000261867A
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JP2002038574A (en
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徹 須崎
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株式会社フジキャスト
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Description

【0001】
【発明の属する技術分野】
本発明は、道路の側溝や横断溝などに使用されるコンクリート製U字溝ブロック用の溝蓋に関するもので、さらに詳しくは二等辺三角形状をなし各頂部に支持脚を垂設した主溝蓋と、該二等辺三角形状の溝蓋の等しい2辺の交わる交点より底辺への垂線により左右に2分割した直角三角形状をなし各頂部に支持脚を垂設した副溝蓋より構成してなるコンクリート製U字溝ブロック用の溝蓋に関するものである。
【0002】
【従来の技術】
従来、道路の側溝などのコンクリート製U字溝ブロックに設けられる溝蓋は、コンクリート製の溝蓋の外、排水の良好なステンレス鋼板などを短冊状に切断したものを組立てたグレーチングや、鋳鉄で成型された透孔を有する溝蓋が広く使用されており、さらに鋳鉄製でがたつくことのない三点支持式の溝蓋が使用されるようになってきた。
【0003】
この三点支持式の溝蓋は、二等辺三角形状をなす主溝蓋が連設され、その両端に直角三角形状の副溝蓋を配設するよう構成されるが、連設したとき中間部に位置する個々の溝蓋が取外し出来ないよう隣位する溝蓋の裏面に突出する係止片が形成され、さらにはコンクリート工場にて成型されるU字溝ブロック単位に溝蓋が配設できるよう設計製作されるようになって来た。
【0004】
本願出願人は、U字溝ブロック用の溝蓋として特開平10−102571号で、溝蓋を長尺に連設したときの収縮、片寄りによる隙間の発生せる場合の溝蓋の、さらに平成12年6月21日付の特許願で片寄りによる隙間の少ない溝蓋を出願した。
【0005】
【発明が解決しようとする課題】
以上述べた如く、溝蓋が二等辺三角形状をなす主溝蓋と、直角三角形状をなす副溝蓋により構成された場合、各溝蓋は各頂点に垂設された三つの脚片で支持されているので、がたつきもなく鋳鉄製のため耐圧強度も良好で広く使用されるようになって来た。
【0006】
また、コンクリート製のU字溝ブロックがコンクリート工場で成型される場合、U字溝ブロックの長さは2000mm、4000mmと正確な寸法で成型され、溝蓋も主溝蓋、副溝蓋が配設されたとき2000mmまたは4000mmになるよう設計製作され、さらにU字溝ブロック単位に溝蓋が配設されるようになって来たが、単位U字溝ブロックより溝蓋が外れないようにU字溝ブロックの溝蓋懸架部に被着した受枠の両端に係止片を設け、副溝蓋は係止片の厚さだけ脚片を削るか、蓋板を脚片の側面より突出させ、U字溝ブロックを連設したとき隙間が生じないように製作される。
【0007】
さらに溝蓋はU字溝ブロックに配設したとき、U字溝ブロックの長さと一致するよう製作すると、夏季など溝蓋が膨張し浮上がることがあり、U字溝ブロックに溝蓋を配設したとき1000mmに対し995〜997mmと僅か短かくなるよう製作される。近時、コンクリート製U字溝ブロックは、製作・運搬の容易さより2000mmの長さのものに統一されるようになり、4000mmの長さのものより溝蓋の配設枚数が半分となり、車輛等の溝蓋上を通過することによる溝蓋の片寄りによる、隣位するU字溝ブロックの溝蓋との隙間も10〜6mmと小さくすることが出来るが、冬期は収縮によりこの隙間が大きくなることはさけられないことである。
【0008】
また、コンクリート製U字溝ブロックを連設する際に、U字溝ブロックとU字溝ブロックの接合部の隙間をモルタルで充填接合することが行なわれることがあり、この作業は現場施工のため接合部のモルタルの厚さすなわち目地の厚さにばらつきがあり、前記U字溝ブロック単位に配設された溝蓋の片寄りにより生ずる隣位するU字溝ブロックの溝蓋との隙間に目地の厚さが加わり、乳母車や手押車などの細幅の車輪が落ち込む恐れのある隙間となることがあり、また車輛等の通過によるがたつきの発生もあり、これらの対策を望まれるようになって来た。
【0009】
本発明は、コンクリート製U字溝ブロックの連設に当り、モルタルなどによる目地が形成されたとき生ずるU字溝に施設された溝蓋間の隙間が溝蓋が車輛等の通過により一方向に片寄った場合の隙間に加わり、乳母車などの細幅の車輪が溝の中に落ち込むことを防止すること、および副溝蓋がU字溝の係止片より離れ車輛等の通過によりがたつきが生じない溝蓋を提供するを目的とする。
【0010】
【課題を解決するための手段】
上記目的を達成するため、本発明の二等辺三角形状をなす主溝蓋と直角三角形状をなす副溝蓋よりなるU字溝ブロックに配設される溝蓋において、コンクリート製U字溝ブロックが連設されたとき、相接するU字溝ブロックに配設された溝蓋の相接する副溝蓋に、脚片部を除く外側辺を等分する位置に、蓋板裏面より突片を突出させてお互いに歯合するよう構成すると共に、突片は隣位する副溝蓋の相接する側に設けたリブに切欠部を設け、切欠部に嵌挿できるような長さに構成するとよい。
【0011】
また、U字溝ブロックが連設されたとき、溝蓋の相接する副溝蓋の直角をなす頂点における脚片を蓋板の裏面よりアームを突出させ移動し、隣位する副溝蓋の底辺側の脚片近くに位置せしめ脚片による蓋板の支持点を広げるよう構成する。なお、アームは直角をなす頂点側に突設した前記突片の先端部裏側より形成させるとよい。
【0012】
【発明の実施の形態】
発明の実施の形態を実施例にもとづき図面を参照して説明する。
〔実施例1〕
本願発明のコンクリート製U字溝ブロック(A)に図1に示す如く配設される溝蓋は鋳鉄などで鋳造され、図4に示す如き二等辺三角形状をなす主溝蓋(1)が連設され、その両端部には図5(a)、(b)に示す如く図4の主溝蓋(1)の等しい2辺(11)、(12)の交点(14)より底辺(13)に下した垂線により左右に2分割した直角三角形状をなす副溝蓋(2)、(3)が配設され、一般にはコンクリート製U字溝ブロック(A)の溝蓋懸架部の寸法に合わせ設計製作される。
【0013】
このように構成された溝蓋をコンクリート製U字溝ブロック(A)に図1に示す如く配設し、U字溝ブロック(A)、(A)を連設したときに隣位するU字溝ブロック(A)、(A)の相接する部分に配設される副溝蓋(3’)、(2’)は、図5(a)、(b)に示す如く、相接する外側辺(17)、(18)の両端に位置する脚片(7)、(9);(7’)、(9’)(U字溝の溝蓋懸架部に位置する部分)を除いた外側辺を等分する位置に、蓋板裏面より突片(21)、(21)を突出させ、突出させた突片(21)、(21);(21)、(21)が間隔をおいて歯合するようにすると共に、突片(21)、(21);(21)、(21)は隣位する副溝蓋(2’)、(3’)の外側辺(18)、(17)側のリブ(19)に切欠部(22)、(22);(22)、(22)を設け、各突片(21)、(21)が切欠部(22)、(22)に嵌挿するよう構成する。なお、突片(21)の形状は特に指定するものでないが、副溝蓋(2’)、(3’)が接するよう配設したとき突片の先端が斜辺側のリブ(19)に接しないよう構成するが、この場合図3の如く溝蓋が配設されることがあるので、連設したときに外側辺の外側に位置する突片(21)の先端をそれぞれ斜めに形成し、リブ(19)に接触しないよう構成するとよい。
【0014】
〔実施例2〕
図7に示す如く、図5に示した実施例1に示す如く構成された直角三角形状の副溝蓋(2’’)、(3’’)において、直角をなす頂点に垂設された脚片(9)、(9’)を、蓋板裏面より突出させた直角をなす頂点側の突片(21)、(21)よりアーム(23)、(23)を突出させてその先端に移動し脚片(9’’)、(9’’’)を形成せしめ、図6の如く配設したとき隣位する副溝蓋(2’’)、(3’’)の底辺側の脚片(8’)、(8)に近接する位置において支持するよう構成せるものである。なお、アーム(23)は図8に示す如く配設したとき隣位する副溝蓋の裏面に接触しないよう突設するとよく、脚片(9)、(9’)を移動したあとには図6に示す如く係止板(24)をそれぞれ垂設しておくとよい。
【0015】
【発明の効果】
本願発明は、以上述べた如く構成されているので、次に記載する効果を有する。
請求項1に記載されたコンクリート製U字溝ブロック用の溝蓋において、U字溝ブロックを連設せるときに隣位するU字溝ブロックの相接する副溝蓋は相接する外側辺側より突設した突片により歯合されているので、U字溝ブロックの設置時U字溝ブロック間をモルタル等で接合しその目地の厚さだけ溝蓋間に隙間が生じ、さらには車輛の通過により溝蓋が片寄って隙間が広がり、乳母車などの車輪が落ち込んでも突片により支えられ、溝の中に落ちる心配が無くなるものである。
【0016】
請求項2に記載された溝蓋は、副溝蓋の直角をなす頂点に垂設した脚片を、請求項1記載の突片よりアームを突出させその先端に移設することにより、脚片による蓋板の支持点を広ろげ、安定性を良好ならしめ、がたつきを無くす効果を有する。
【図面の簡単な説明】
【図1】溝蓋を配設したコンクリート製U字溝ブロックの連設状況を示す平面図。
【図2】図1の連設部の副溝蓋間に隙間発生する状況を示す平面図。
【図3】図1と異なる溝蓋の配設状況を示す平面図。
【図4】主溝蓋の格子状透孔を省略した裏面図。
【図5】請求項1記載の本発明の副溝蓋の格子状透孔を省略した裏面図。
【図6】請求項2記載の本発明の副溝蓋の格子状透孔を省略した裏面図。
【図7】請求項2記載の副溝蓋の配設状況を示す平面図。
【図8】請求項2記載の本発明の副溝蓋の斜視図。
【符号の説明】
1‥‥主溝蓋、
2、3‥‥副溝蓋
4、5、6、7、8、9‥‥脚片
17、18‥‥外側辺 19‥‥リブ
21‥‥突片 22‥‥切欠き(リブに設けた)
23‥‥アーム 24‥‥係止板
A‥‥コンクリート製U字溝ブロック
B‥‥連設部
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a groove cover for a concrete U-shaped groove block used for a side groove or a cross groove of a road, and more particularly, a main groove cover having an isosceles triangle shape and a supporting leg suspended from each top. And the isosceles triangular groove cover is formed of a sub-groove cover having a right-angled triangular shape that is divided into right and left by a perpendicular line from the intersection of two equal sides to each other, and a support leg vertically suspended at each top. The present invention relates to a groove lid for a concrete U-shaped groove block.
[0002]
[Prior art]
Conventionally, the groove cover provided on the concrete U-shaped groove block such as the side groove of the road is made of a grating or cast iron that is assembled from a strip of stainless steel plate with good drainage outside the concrete groove cover. Groove covers having molded through holes are widely used, and three-point support type groove covers made of cast iron that do not rattle have come to be used.
[0003]
This three-point support type groove cover is configured such that a main groove cover having an isosceles triangle shape is continuously provided and a right-angled triangle-shaped sub groove cover is provided at both ends thereof. A locking piece protruding on the back surface of the adjacent groove cover is formed so that the individual groove cover located in the position cannot be removed, and further, the groove cover can be arranged in units of U-shaped groove blocks molded in a concrete factory. It has come to be designed and manufactured.
[0004]
The applicant of the present application disclosed in Japanese Patent Application Laid-Open No. 10-102571 as a groove cover for a U-shaped groove block. In a patent application dated June 21, 2012, we applied for a groove lid with little gap due to the offset.
[0005]
[Problems to be solved by the invention]
As described above, when the groove cover is composed of a main groove cover having an isosceles triangle shape and a sub-groove cover having a right triangle shape, each groove cover is supported by three leg pieces suspended from each vertex. Therefore, it is made of cast iron without rattling and has good pressure strength and has been widely used.
[0006]
When a concrete U-shaped groove block is molded at a concrete factory, the length of the U-shaped groove block is molded with an accurate dimension of 2000 mm and 4000 mm, and the groove cover is also provided with a main groove cover and a sub groove cover. It was designed and manufactured to be 2000 mm or 4000 mm, and a groove lid has been provided for each U-shaped groove block unit. However, the U-shape is not to be removed from the unit U-shaped groove block. Locking pieces are provided at both ends of the receiving frame attached to the groove lid suspension part of the groove block, and the sub-groove cover scrapes the leg piece by the thickness of the locking piece or causes the cover plate to protrude from the side surface of the leg piece. Manufactured in such a way that no gaps are created when the groove blocks are arranged in series.
[0007]
Furthermore, when the groove lid is arranged on the U-shaped groove block, if the groove lid is made to match the length of the U-shaped groove block, the groove lid may expand and float in summer, etc., and the groove lid is arranged on the U-shaped groove block. In this case, it is manufactured to be slightly shorter as 995 to 997 mm with respect to 1000 mm. Recently, the concrete U-shaped groove block has been unified to a length of 2000 mm due to the ease of production and transportation, and the number of groove lids is halved from that of a length of 4000 mm. The gap with the groove lid of the adjacent U-shaped groove block due to the deviation of the groove lid by passing over the groove lid can be reduced to 10-6 mm, but this gap becomes larger due to shrinkage in winter That is something that cannot be avoided.
[0008]
In addition, when connecting concrete U-shaped groove blocks, the gap between the joints of the U-shaped groove block and the U-shaped groove block may be filled and bonded with mortar. There is a variation in the thickness of the mortar at the joint, that is, the thickness of the joint, and the joint is formed in the gap between the groove lid of the adjacent U-shaped groove block generated by the deviation of the groove lid disposed in the U-shaped groove block unit. However, there is a possibility that narrow wheels such as baby carriages and wheelbarrows may fall, and rattling may occur due to the passage of vehicles etc., and these measures have become desirable. I came.
[0009]
In the present invention, when the concrete U-shaped groove block is continuously provided, the gap between the groove lids provided in the U-shaped groove formed when joints are formed by mortar or the like is formed in one direction by the passage of the vehicle or the like. It is added to the gap when it is offset, preventing a narrow wheel such as a baby carriage from falling into the groove, and the sub-groove lid is separated from the U-shaped groove locking piece and rattling is caused by the passage of the vehicle etc. An object is to provide a groove lid that does not occur.
[0010]
[Means for Solving the Problems]
In order to achieve the above object, a concrete U-shaped groove block is provided in a groove cover disposed in a U-shaped groove block comprising a main groove cover having an isosceles triangle shape and a sub-groove cover having a right triangle shape according to the present invention. When connected continuously, projecting pieces from the back side of the cover plate are placed in the position where the outer side excluding the leg piece part is equally divided into the adjoining secondary groove cover of the groove cover arranged in the U-shaped groove block that comes into contact. Protruding pieces are configured so as to mesh with each other, and the projecting pieces are provided with notches on the ribs provided on the adjacent side of the adjacent sub-groove lid, and are configured to have a length that can be inserted into the notches. Good.
[0011]
Further, when the U-shaped groove block is continuously provided, the leg piece at the apex that forms a right angle of the sub-groove cover with which the groove cover contacts is moved with the arm protruding from the back surface of the cover plate, and the adjacent sub-groove cover is moved. The cover plate is positioned near the bottom leg piece so that the support point of the lid plate by the leg piece is widened. The arm may be formed from the back side of the tip of the projecting piece projecting at the apex side forming a right angle.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the invention will be described with reference to the drawings based on examples.
[Example 1]
The groove lid disposed as shown in FIG. 1 in the concrete U-shaped groove block (A) of the present invention is cast with cast iron or the like, and the main groove lid (1) having an isosceles triangle shape as shown in FIG. As shown in FIGS. 5 (a) and 5 (b), the bottom side (13) from the intersection (14) of two equal sides (11) and (12) of the main groove lid (1) in FIG. Sub-groove lids (2) and (3) are formed in a right-angled triangle shape divided into right and left by a perpendicular line, and are generally matched to the dimensions of the groove lid suspension of the concrete U-shaped groove block (A). Designed and manufactured.
[0013]
The groove lid configured in this way is arranged in the concrete U-shaped groove block (A) as shown in FIG. 1, and the adjacent U-shape when the U-shaped groove blocks (A) and (A) are continuously arranged. The sub-groove lids (3 ′) and (2 ′) disposed at the contacting portions of the groove blocks (A) and (A) are arranged on the outer sides as shown in FIGS. 5 (a) and 5 (b). Outside the leg pieces (7), (9); (7 '), (9') (the part located at the groove lid suspension part of the U-shaped groove) located at both ends of the sides (17), (18) The protruding pieces (21) and (21) are projected from the back surface of the lid plate at positions where the sides are equally divided, and the protruding protruding pieces (21), (21); (21), (21) are spaced apart from each other. The projecting pieces (21), (21); (21), (21) are arranged on the outer side edges (18), (17) of the adjacent auxiliary groove lids (2 ′), (3 ′). ) Side rib (19) with notch (22) (22); (22), provided (22), each protrusion (21), (21) notch (22), configured to fitted into (22). Although the shape of the projecting piece (21) is not particularly specified, the tip of the projecting piece is in contact with the rib (19) on the hypotenuse side when the sub-groove lids (2 ′) and (3 ′) are arranged to contact each other. In this case, since the groove lid may be disposed as shown in FIG. 3, the tips of the projecting pieces (21) located outside the outer side are formed obliquely when connected, It is good to comprise so that it may not contact a rib (19).
[0014]
[Example 2]
As shown in FIG. 7, in the sub-groove lids (2 ″) and (3 ″) having a right triangle shape configured as shown in the embodiment 1 shown in FIG. The pieces (9) and (9 ′) are projected from the rear surface of the lid plate, and the right-side apex-side projecting pieces (21) and (21) are projected from the arms (23) and (23) and moved to the tip. Leg pieces (9 '') and (9 ''') are formed, and when placed as shown in FIG. 6, the adjacent side groove pieces (2'') and (3'') bottom leg pieces (8 ′) and (8) are configured to be supported at positions close to each other. The arm (23) may be provided so as not to contact the back surface of the adjacent sub-groove lid when arranged as shown in FIG. 8, and after the leg pieces (9) and (9 ′) are moved, As shown in FIG. 6, each of the locking plates (24) may be suspended.
[0015]
【The invention's effect】
Since the present invention is configured as described above, it has the following effects.
The groove cover for a concrete U-shaped groove block according to claim 1, wherein when the U-shaped groove block is continuously arranged, the adjacent secondary groove cover of the adjacent U-shaped groove block is adjacent to the outer side. Since it is meshed by the projecting pieces more projecting, when the U-shaped groove block is installed, the U-shaped groove blocks are joined with mortar, etc., and a gap is created between the groove lids by the thickness of the joint, and further, the vehicle By passing, the groove lid is offset, the gap is widened, and even if a wheel such as a baby carriage falls, it is supported by the protruding piece and there is no fear of falling into the groove.
[0016]
The groove lid described in claim 2 is formed by a leg piece that has a leg piece suspended at a vertex perpendicular to the sub-groove cover and protrudes from the projecting piece according to claim 1 to the tip of the leg piece. The support point of the lid plate is widened, the stability is improved, and the rattling is eliminated.
[Brief description of the drawings]
FIG. 1 is a plan view showing a continuous arrangement of a concrete U-shaped groove block provided with a groove lid.
2 is a plan view showing a situation in which a gap is generated between the sub-groove covers of the continuous portion of FIG.
FIG. 3 is a plan view showing a disposition state of a groove lid different from FIG. 1;
FIG. 4 is a back view in which a lattice-like through hole of the main groove lid is omitted.
FIG. 5 is a back view of the sub-groove cover according to the first embodiment of the present invention in which lattice-like through holes are omitted.
FIG. 6 is a back view of the sub-groove cover according to the second aspect of the present invention in which lattice-like through holes are omitted.
FIG. 7 is a plan view showing a state in which the sub-groove cover according to claim 2 is disposed.
FIG. 8 is a perspective view of the auxiliary groove cover according to the present invention according to claim 2;
[Explanation of symbols]
1 ... Main groove cover,
2, 3, ... Minor groove cover 4, 5, 6, 7, 8, 9 ... Leg pieces 17, 18 ... Outer side 19 ... Rib 21 ... Projection piece 22 ... Notch (provided on rib)
23 ... Arm 24 ... Locking plate A ... Concrete U-shaped groove block B ... Consecutive section

Claims (2)

二等辺三角形状をなす主溝蓋(1)と、主溝蓋(1)を左右に2分割した直角三角形状をなす副溝蓋(2)、(3)とよりなる溝蓋において、コンクリート製U字溝ブロック(A)、(A)‥‥が連設され、各U字溝ブロック(A)、(A)‥‥に該溝蓋が配設されたとき、相接するU字溝ブロック(A)、(A)‥‥の溝蓋の端部に位置し相接する副溝蓋(2’)、(3’)の脚片部を除く相接する外側辺(17)、(18)を等分する位置に、蓋板裏面より突片(21)、(21)を突出させ、突片(21)、(21)はお互いに歯合するよう構成すると共に隣位する副溝蓋(2’)、(3’)の外側辺(17)、(18)側に設けたリブ(19)に切欠部(22)を設け、突片(21)、(21)が切欠部(22)、(22)に嵌挿するよう構成してなるコンクリート製U字溝ブロック用の溝蓋。In a groove lid comprising a main groove lid (1) having an isosceles triangle shape, and a secondary groove lid (2) and (3) having a right triangle shape obtained by dividing the main groove lid (1) into left and right parts, When the U-shaped groove blocks (A), (A),... Are arranged in series, and the groove lids are disposed in the U-shaped groove blocks (A), (A),. (A), (A)... Adjacent groove sides (17), (18) excluding the leg groove portions (2 ′) and (3 ′) located at the ends of the groove lids and in contact with each other. ) In the position to equally divide the protrusions (21), (21) from the back surface of the lid plate, and the protrusions (21), (21) are configured to mesh with each other and the adjacent sub-groove cover The ribs (19) provided on the outer sides (17), (18) side of (2 ′), (3 ′) are provided with notches (22), and the projecting pieces (21), (21) are notches (22 ), Insert into (22) Concrete U-shaped groove groove lid for blocks formed by adapted. 請求項1記載の副溝蓋(2’)、(3’)において、直角をなす頂点に垂設された脚片(9)、(9’)を裏板裏面より突設した直角をなす頂点側の突片(21)、(21)よりアーム(23)、(23)を突出させてそれぞれその先端部に移動し脚片(9’’)、(9’’’)を形成せしめ、脚片による蓋板の支持点が広がるよう構成してなるコンクリート製U字溝ブロック用の溝蓋。The sub-groove lids (2 ') and (3') according to claim 1, wherein the leg pieces (9) and (9 ') suspended from the right-angled vertex are projected from the rear surface of the back plate. The arms (23), (23) are projected from the protruding pieces (21), (21) on the side and moved to their respective distal ends to form leg pieces (9 ″), (9 ′ ″). A groove lid for a concrete U-shaped groove block constructed so that the support point of the cover plate by the piece is widened.
JP2000261867A 2000-07-28 2000-07-28 Groove lid for concrete U-shaped groove block Expired - Fee Related JP4345076B2 (en)

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JP2000261867A JP4345076B2 (en) 2000-07-28 2000-07-28 Groove lid for concrete U-shaped groove block

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JP2000261867A JP4345076B2 (en) 2000-07-28 2000-07-28 Groove lid for concrete U-shaped groove block

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JP2002038574A JP2002038574A (en) 2002-02-06
JP4345076B2 true JP4345076B2 (en) 2009-10-14

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