JP3380185B2 - Groove lid support device for groove block - Google Patents
Groove lid support device for groove blockInfo
- Publication number
- JP3380185B2 JP3380185B2 JP13403999A JP13403999A JP3380185B2 JP 3380185 B2 JP3380185 B2 JP 3380185B2 JP 13403999 A JP13403999 A JP 13403999A JP 13403999 A JP13403999 A JP 13403999A JP 3380185 B2 JP3380185 B2 JP 3380185B2
- Authority
- JP
- Japan
- Prior art keywords
- groove
- lid
- block
- cover
- groove cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
Landscapes
- Sewage (AREA)
Description
【発明の詳細な説明】
【０００１】
【発明の属する技術分野】本発明は、側溝ブロックやＵ
字形ブロックなどで代表されるコンクリート製の溝ブロ
ックの溝開口内に、金属製の溝蓋（グレーチング）を支
持する装置に関する。
【０００２】
【従来の技術】金属製の溝蓋側とコンクリート製の溝ブ
ロック側との寸法誤差により溝蓋が溝ブロック内でがた
ついて騒音を発生するのを防止するために、図６に示す
ように溝ブロック１の溝開口３内の相対向する内側面
５，５の各下端から内方へ下り傾斜するよう凸曲面状の
蓋支持面６を延設する一方、溝蓋２の下面の両側に脚部
１０，１０を付設し、この両脚部１０，１０のそれぞれ
の外側下端にテ−パ面１０ｆを形成しておいて、溝ブロ
ック１の溝開口３内に対して溝蓋２が両脚部１０，１０
のテ−パ面１０ｆ，１０ｆを蓋支持面６，６の凸曲面上
に線接触状に接合するよう嵌め込み支持されるものがあ
る（特開平１１−６１９４号公報参照）。
【０００３】このように溝ブロック１の凸曲面状の蓋支
持面６，６間に溝蓋２の両脚部１０，１０のテ−パ面１
０ｆ，１０ｆを嵌め込んで支持するという構造を採用す
ることにより、溝蓋２側と溝ブロック１側とに寸法誤差
がある場合もこの寸法誤差を吸収できてがたつきなく支
持することができる。
【０００４】
【発明が解決しようとする課題】しかるに、溝ブロック
１の溝開口３内に対して溝蓋２を落とし込み装着しやす
くするために、溝ブロック１の相対向する内側面５，５
間の開口寸法Ａは溝蓋２の幅寸法Ｂよりも少し広めに設
定している。このため、溝蓋２の嵌め込み後は溝ブロッ
ク１の内側面５，５と溝蓋２との間に隙間ｇが生じる。
他方、上記のように溝蓋２の両脚部１０，１０が溝ブロ
ック１内の蓋支持面５，５の凸曲面上に支持される構造
となっていると、溝蓋２の上面の幅方向中央部より一側
方に偏した位置に自動車などが通行したときに、溝蓋２
に偏荷重Ｗがかかり、この偏荷重の加えられる側の脚部
１０が蓋支持面６を下方に滑って溝蓋２全体が図６中に
二点鎖線Ｘで示すように前記隙間ｇを介して傾き回動
し、この傾動により溝蓋２の偏荷重が加えられる側とは
反対側の一端部２ａが溝ブロック１の内側面５に衝突し
て大きい衝突音を発生するという問題があった。
【０００５】本発明は、このような問題を解消するため
になされたものであって、金属製溝蓋側とコンクリート
製溝ブロック側との間に少々寸法誤差がある場合も溝蓋
を溝ブロック内にがたつきなく支持し得ることを確保し
得ながらも、溝蓋が自動車などの通行による偏荷重を受
ける場合も傾動することなく溝ブロックの内側面との衝
突音を発生するのを防止できる溝ブロックへの溝蓋支持
装置を提供しようとするものである。
【０００６】
【課題を解決するための手段】本発明は、図４および図
５に例示するように、上端に溝開口３を有するコンクリ
ート製の溝ブロック１の前記溝開口３内に金属製の溝蓋
２を支持する装置であって、前記溝ブロック１は溝開口
３内に蓋受け部４を相対向状に備えており、その蓋受け
部４は、ほぼ垂直な内側面５と、この内側面５の下端か
ら段部７を介して内方へ下り傾斜状に延設した蓋支持面
６とを形成してあり、前記溝蓋２は、前記溝ブロック１
の相対向する内側面５，５間に納められる溝蓋本体９
と、この溝蓋本体９の下面の両側に下向きに突設した脚
部１０，１０とを備え、各脚部１０は、溝蓋本体９の幅
方向外方に面する垂直の外辺部１０ｄと、この外辺部１
０ｄの下端に連続形成されて前記蓋支持面６に当接する
テーパ面１０ｆとを有する形に形成されるとともに、溝
蓋本体９の幅方向外端部の直下より幅方向内方に偏した
位置に設定されており、前記外辺部１０ｄには、前記段
部７上に接当係合して溝蓋本体９の幅方向外端部が前記
蓋受け部４の内側面５に衝突するのを防止する回止め突
起１８が、溝蓋本体９の幅方向外端部の直下より外方へ
突出することのないよう設けられていることに特徴を有
するものである。ここで、内方へ下り傾斜状に延設した
蓋支持面６とは、図４のような真っ直ぐな下り傾斜面の
形の蓋支持面６や図５のような凸曲面の形の蓋支持面６
のいずれも含む意である。
【０００７】
【作用】溝ブロックの溝開口内の相対向する蓋支持面は
それぞれ内側面の下端から内方へ下り傾斜状に延設して
いるため、この両蓋支持面間の空間は上方拡がり状態を
呈する一方、溝蓋の両脚部のそれぞれの外側下端に前記
蓋支持面に当接するテ−パ面を形成しているため、この
両脚部のテ−パ面間の間隔が下方狭まり状態を呈するこ
とになり、したがって、溝ブロックの溝開口内寸法と溝
蓋の両脚部との間に少々の寸法誤差が生じている場合
も、溝ブロックの蓋支持面間に溝蓋の両脚部を嵌合する
ことにより溝蓋を溝ブロック内にがたつきなく支持し得
ることになる。
【０００８】溝蓋の両脚部に回止め突起を設け、これを
溝ブロックの内側面と蓋支持面との間の段部上に接当係
合するようにしてあると、溝蓋が自動車などの通行によ
る偏荷重を受けたときも溝蓋は傾き回動するのを前記回
止め突起と段部との係合作用でもって阻止することがで
きるため、溝蓋の端部が溝ブロックの内側面に衝突する
のを防止できる。
【０００９】
【発明の実施の形態】本発明の一実施例を図面に基づき
説明する。図１は本発明の一実施例による溝蓋の平面
図、図２は同溝蓋の一部切欠き状態の側面図、図３は同
溝蓋の正面図、図４は同溝蓋を溝ブロックに嵌め込んだ
状態で示す縦断正面図である。
【００１０】図４において、１はコンクリート製の溝ブ
ロック、２は金属製の溝蓋である。コンクリート製の溝
ブロック１は断面Ｕ字形に形成されて上端に溝開口３を
有し、この溝開口３内に蓋受け部４，４を相対向状に切
欠き形成しており、各蓋受け部４は、抜き勾配を付けた
ほぼ垂直な内側面５と、この内側面５の下端から平坦な
段部７を介して内方へ下り傾斜状に延設した蓋支持面６
とを形成している。相対向する蓋支持面６，６はそれぞ
れ内方へ下り傾斜状に形成されることにより、両蓋支持
面６，６間の間隔は上方に行くに従い漸次広幅に形成さ
れ、この蓋支持面６，６間の空間は上方拡がり状に形成
される。
【００１１】図１ないし図３に示すように、金属製の溝
蓋２は、四角形状で格子状に組み立てた溝蓋本体９と、
この溝蓋本体９の下面の溝幅方向両端寄りに溝長手方向
に平行に溶接固定した一対の脚部１０，１０とを備えて
いる。溝蓋本体９は、フラットバー又はＩ型バーよりな
る縦枠１２，１３と、フラットバー又はＩ型バーよりな
る横枠１４，１５とを四角形に枠組みするとともに、横
枠１４，１５間に溝幅方向に沿うフラットバー又はＩ型
バーよりなるメインバー１６を、縦枠１２，１３及びメ
インバー１６上に溝長手方向に沿うツイストバーなどよ
りなるクロスバー１７をそれぞれ渡して溶接固定するこ
とにより格子状に組み立てている。溝蓋２は溝ブロック
１の溝開口３内にこれの上方から嵌め込みやすくするた
めに、溝蓋２の横枠１４，１５間（溝蓋本体９の幅方向
外端部どうし間）の幅寸法Ｂは溝ブロック１の内側面
５，５間の開口寸法Ａよりも少し小さく寸法設定してい
る。
【００１２】溝蓋２の脚部１０は、断面不等辺五角形の
金属パイプ材からなって上下辺部１０ａ，１０ｂと、内
外辺部１０ｃ，１０ｄ、及び外辺部１０ｄと下辺部１０
ｂとをつなぐ斜辺部１０ｅとを有してなり、斜辺部１０
ｅが下向きになるようように上辺部１０ａが多数本のメ
インバー１６の下面にその２〜３本置き間隔で溶接固定
され、斜辺部１０ｅの外側のテ−パ面１０ｆは溝ブロッ
ク１の蓋支持面６の勾配に対応させている。したがっ
て、両脚部１０，１０のテ−パ面１０ｆ，１０ｆ間の間
隔は下方に至るに従い漸次狭幅に形成される。
【００１３】脚部１０のテ−パ面１０ｆより上方の外辺
部１０ｄから金属製の断面四角形の回止め突起１８を外
方に突出するよう固定しているが、該回止め突起１８の
外方突出端は、図３、図４に示すように、溝蓋本体９の
幅方向外端部の直下より外方へ突出することのないよう
に設けられている。この回止め突起１８は脚部１０の外
辺部１０ｄの長手方向に任意間隔を置いて配設する。図
示例では脚部１０の外辺部１０ｄの長手方向両端寄りの
２箇所に溶接固定している。
【００１４】図４に示すように、上記のコンクリート製
の溝ブロック１の溝開口３内に対して金属製の溝蓋２は
溝蓋本体９が溝ブロック１の内側面５，５間に納まり、
両脚部１０，１０のテ−パ面１０ｆ，１０ｆが蓋支持面
６，６上に支持されるように嵌め込まれる。その際、両
脚部１０，１０の下方狭まり状態を呈するテ−パ面１０
ｆ，１０ｆが上方拡がり状態を呈する両蓋支持面６，６
間にテ−パ嵌合するので、溝ブロック１の溝開口３内寸
法と溝蓋２の両脚部１０，１０との間に少々の寸法誤差
が生じているときも、溝蓋２を溝ブロック１の溝開口３
内にがたつきなく支持することができた。
【００１５】たとえ、溝蓋２が自動車などの通行による
偏荷重を受けたときも、溝蓋２の両脚部１０，１０の回
止め突起１８，１８が溝ブロック１の内側面５の下端の
段部７，７上に接当係合するので、溝蓋２が図６中の二
点鎖線Ｘで示すごとき傾き回動して溝ブロック１の内側
面５に衝突するのを確実に防止できる。したがって、溝
蓋２は、自動車などの通行により荷重を受けるときも溝
ブロック１の溝開口３内において常に水平な嵌まり込み
状態に安定確実に、かつ騒音を発生することのないよう
に支持されるに至った。
【００１６】上記実施例では脚部１０が断面不等辺五角
形状のパイプ材よりなるが、これに限られず、その他の
多角形状のパイプ材、または金属棒材などで形成するも
のであってもよい。また、上記実施例では回止め突起１
８を脚部１０とは別体に構成し、これを脚部１０に溶接
固定してあるが、回止め突起１８は脚部１０に一体に形
成することもできる。回止め突起１８を脚部１０とは別
体に構成する場合、この回止め突起１８は金属製の平板
材や丸棒材、あるいはボルトなどで構成することもでき
る。蓋支持面６は図４のように真っ直ぐな下り傾斜面に
形成するに代えて、図５に示すように凸曲面に形成する
ものであってもよく、要は相対向する蓋支持面６，６間
の空間が上方拡がり状になるように形成するものであれ
ばよい。
【００１７】
【発明の効果】本発明によれば、コンクリート製の溝ブ
ロックの上方拡がり状の蓋支持面間に溝蓋の下方狭まり
状のテ−パ面をもつ両脚部を嵌め込んで支持するという
ものであるから、溝ブロックの溝開口内寸法と溝蓋の両
脚部との間に少々の寸法誤差が生じている場合も、溝蓋
を溝ブロック内にがたつきなく支持することができる。
しかも、溝蓋の脚部に回止め突起を設けるという簡単な
手段で、溝蓋がこの上面に自動車などの通行により偏荷
重が加えられる場合も溝ブロックとの衝突音を発生する
ようなことが無くて騒音防止を図れる利点がある。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention
The present invention relates to a device for supporting a metal groove cover (grating) in a groove opening of a concrete groove block represented by a letter-shaped block or the like. 2. Description of the Related Art FIGS. 6A and 6B show a structure for preventing a noise from occurring due to rattling of a groove cover in a groove block due to a dimensional error between a metal groove cover side and a concrete groove block side. As shown, a convexly curved lid support surface 6 is provided so as to extend inward from each lower end of the opposed inner side surfaces 5 and 5 in the groove opening 3 of the groove block 1, while the lower surface of the groove lid 2 is provided. Are provided on both sides thereof, and taper surfaces 10f are formed on the lower ends of the outer sides of the legs 10, 10, respectively. Are both legs 10,10
(See Japanese Patent Application Laid-Open No. 11-6194) in which the taper surfaces 10f, 10f are fitted and supported on the convex curved surfaces of the lid supporting surfaces 6, 6 so as to be joined in line contact. As described above, the tapered surfaces 1 of the two legs 10, 10 of the groove lid 2 are located between the convexly curved lid support surfaces 6, 6 of the groove block 1.
By adopting a structure in which 0f and 10f are fitted and supported, even if there is a dimensional error between the groove lid 2 side and the groove block 1 side, the dimensional error can be absorbed and can be supported without play. . [0004] However, in order to drop the groove cover 2 into the groove opening 3 of the groove block 1 to facilitate mounting, the opposing inner surfaces 5, 5 of the groove block 1 are provided.
The opening dimension A between them is set slightly larger than the width dimension B of the groove lid 2. Therefore, after the groove cover 2 is fitted, a gap g is formed between the inner side surfaces 5 and 5 of the groove block 1 and the groove cover 2.
On the other hand, if the two legs 10, 10 of the groove cover 2 are supported on the convex curved surfaces of the lid support surfaces 5, 5 in the groove block 1 as described above, the width direction of the upper surface of the groove cover 2 When a car or the like passes at a position deviated to one side from the center, the groove cover 2
, And the leg 10 on the side to which the eccentric load is applied slides downward on the lid supporting surface 6 so that the entire groove lid 2 passes through the gap g as shown by a two-dot chain line X in FIG. There is a problem that one end 2a of the groove cover 2 on the opposite side to the side to which the eccentric load is applied collides with the inner side surface 5 of the groove block 1 due to the tilt and generates a loud collision sound. . SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and even if there is a slight dimensional error between the metal groove cover side and the concrete groove block side, the groove cover can be removed. While it can ensure that it can be supported without rattling inside, even if the groove lid receives an uneven load due to traffic such as a car, it does not tilt and does not generate a collision sound with the inner surface of the groove block It is an object of the present invention to provide a groove cover supporting device for a groove block which can be formed. As shown in FIGS. 4 and 5, the present invention provides a concrete groove block 1 having a groove opening 3 at an upper end. An apparatus for supporting a groove cover 2, wherein the groove block 1 is provided with a lid receiving portion 4 in a groove opening 3 so as to face each other, and the lid receiving portion 4 is provided with a substantially vertical inner surface 5, A lid support surface 6 is formed to extend inward from the lower end of the inner side surface 5 via a stepped portion 7 in a downwardly inclined manner.
Groove main body 9 accommodated between inner surfaces 5, 5 facing each other
And leg portions 10, 10 projecting downward on both sides of the lower surface of the groove lid body 9, each leg 10 having a width of the groove lid body 9.
A vertical outer side 10d facing outward in the direction, and the outer side 1
Od is formed continuously at the lower end and abuts on the lid support surface 6
And a groove having a tapered surface 10f.
The lid body 9 is biased inward in the width direction from directly below the outer end of the lid body 9 in the width direction.
Position, and the outer edge 10d has the step
The outer end in the width direction of the groove lid body 9 is brought into contact with and engaged with the portion 7.
Detents for preventing collision with the inner surface 5 of the lid receiving part 4
The origin 18 is outward from immediately below the widthwise outer end of the groove lid body 9.
It is characterized by being provided so as not to protrude . Here, the lid support surface 6 extending inward and downwardly inclined means a lid support surface 6 in the form of a straight downward inclined surface as shown in FIG. 4 or a lid support surface in the form of a convex curved surface as shown in FIG. Face 6
It is meant to include both. The opposing lid supporting surfaces in the groove opening of the groove block extend inward from the lower end of the inner surface in a downwardly inclined manner, so that the space between the lid supporting surfaces is upward. Since the tapered surface which contacts the lid support surface is formed at the outer lower end of each of the two legs of the groove lid, the interval between the tapered surfaces of the two legs is narrowed downward. Therefore, even if there is a slight dimensional error between the groove opening inside dimension of the groove block and the two legs of the groove cover, the two legs of the groove cover are interposed between the lid support surfaces of the groove block. By fitting, the groove cover can be supported in the groove block without rattling. [0008] When the rotation stoppers are provided on both legs of the groove cover and are engaged with the step on the step between the inner surface of the groove block and the lid support surface, the groove cover becomes an automobile or the like. The groove lid can be prevented from tilting and rotating even when subjected to an eccentric load due to the traffic by the engagement of the detent projection and the stepped portion. Collision with the side can be prevented. An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a plan view of a groove cover according to an embodiment of the present invention, FIG. 2 is a side view of the groove cover in a partially cutaway state, FIG. 3 is a front view of the groove cover, and FIG. It is a vertical front view shown in the state fitted in the block. In FIG. 4, 1 is a concrete groove block, and 2 is a metal groove cover. The concrete groove block 1 is formed in a U-shaped cross section and has a groove opening 3 at the upper end, and lid receiving portions 4 and 4 are cut out in the groove opening 3 so as to face each other. The portion 4 includes a substantially vertical inner surface 5 having a draft angle, and a lid support surface 6 extending inward from the lower end of the inner surface 5 through a flat stepped portion 7 so as to slope downward.
And form. The opposing lid supporting surfaces 6 and 6 are formed to be inclined inward and downward, respectively, so that the distance between the lid supporting surfaces 6 and 6 is gradually increased as going upward. , 6 are formed in an upwardly extending shape. As shown in FIGS. 1 to 3, a metal groove lid 2 is composed of a groove lid main body 9 assembled in a square lattice shape.
A pair of legs 10, 10 welded and fixed parallel to the longitudinal direction of the groove near both ends in the groove width direction on the lower surface of the groove lid body 9. The groove lid body 9 forms a rectangular frame between the vertical frames 12 and 13 formed of flat bars or I-shaped bars and the horizontal frames 14 and 15 formed of flat bars or I-shaped bars, and a groove between the horizontal frames 14 and 15. The main bar 16 made of a flat bar or an I-shaped bar along the width direction is welded and fixed by passing a cross bar 17 made of a twist bar or the like along the longitudinal direction of the groove on the vertical frames 12, 13 and the main bar 16, respectively. Assembled in a grid. The groove cover 2 is inserted between the horizontal frames 14 and 15 of the groove cover 2 (in the width direction of the groove cover body 9) so as to be easily fitted into the groove opening 3 of the groove block 1 from above.
The width dimension B between the outer end portions is set slightly smaller than the opening dimension A between the inner side surfaces 5 and 5 of the groove block 1. The leg portion 10 of the groove cover 2 is made of a metal pipe material having a pentagonal cross section and has upper and lower sides 10a and 10b, inner and outer sides 10c and 10d, and an outer side 10d and a lower side 10d.
b, and a hypotenuse portion 10e connecting the
The upper side portion 10a is welded and fixed to the lower surface of the plurality of main bars 16 at intervals of two to three so that e faces downward, and the tapered surface 10f outside the oblique side portion 10e is covered with the lid of the groove block 1. This corresponds to the gradient of the support surface 6. Therefore, the space between the tapered surfaces 10f, 10f of the two legs 10, 10 is gradually narrowed toward the bottom. A metal locking detent projection 18 having a square cross section is fixed to project outward from an outer edge 10d above the tapered surface 10f of the leg portion 10 .
As shown in FIGS. 3 and 4, the outwardly protruding end of the groove lid body 9 is formed.
Do not protrude outward just below the widthwise outer end
It is provided in . The detent projections 18 are arranged at arbitrary intervals in the longitudinal direction of the outer periphery 10 d of the leg 10. In the illustrated example, the outer periphery 10d of the leg 10 is welded and fixed to two positions near both ends in the longitudinal direction. As shown in FIG. 4, the metal groove cover 2 has the groove cover body 9 fitted between the inner side surfaces 5 and 5 of the groove block 1 inside the groove opening 3 of the concrete groove block 1. ,
The taper surfaces 10f, 10f of the two legs 10, 10 are fitted so as to be supported on the lid support surfaces 6, 6. At this time, the taper surface 10 presenting a state in which both legs 10, 10 are narrowed downward.
f, 10f are the two-sided support surfaces 6, 6 in an upwardly spread state.
Since there is a taper fit between the grooves, even when there is a slight dimensional error between the inner dimensions of the groove opening 3 of the groove block 1 and the two legs 10, 10 of the groove cover 2, the groove cover 2 can be inserted into the groove block. 1 groove opening 3
I was able to support it without rattling. For example, even when the groove cover 2 is subjected to an eccentric load due to the passage of an automobile or the like, the rotation preventing projections 18 of the two legs 10, 10 of the groove cover 2 are provided at the lower end of the inner side surface 5 of the groove block 1. Since the groove cover 2 is brought into contact with and engaged with the portions 7, 7, it is possible to reliably prevent the groove cover 2 from tilting and rotating as shown by the two-dot chain line X in FIG. 6 and colliding with the inner surface 5 of the groove block 1. Therefore, the groove cover 2 is supported in a stable manner and always in a horizontal fitting state in the groove opening 3 of the groove block 1 even when receiving a load due to the passage of an automobile or the like so as not to generate noise. I came to. In the above embodiment, the leg portion 10 is made of a pipe material having a pentagonal shape with a non-equilateral cross section. However, the present invention is not limited to this. The leg portion 10 may be made of another polygonal pipe material or a metal rod material. . Further, in the above embodiment, the detent projection 1
8 is formed separately from the leg 10 and is fixed to the leg 10 by welding. However, the rotation preventing projection 18 may be formed integrally with the leg 10. When the rotation-stop projection 18 is formed separately from the leg 10, the rotation-stop projection 18 may be made of a metal plate, a round bar, a bolt, or the like. The lid supporting surface 6 may be formed as a convex curved surface as shown in FIG. 5 instead of being formed as a straight downward inclined surface as shown in FIG. What is necessary is just to form so that the space between 6 may become upward expansion shape. According to the present invention, both legs having a tapered surface narrowed below the groove lid are fitted and supported between the upwardly extending lid support surfaces of the concrete groove block. Therefore, even when there is a slight dimensional error between the groove opening inside dimension of the groove block and both legs of the groove cover, the groove cover can be supported without rattling in the groove block. .
Moreover, the simple means of providing a detent projection on the leg portion of the groove cover can generate a collision sound with the groove block even when an uneven load is applied to the upper surface of the groove cover by the passage of a vehicle or the like. There is an advantage that noise can be prevented without it.
【図面の簡単な説明】
【図１】本発明の一実施例を示す溝蓋の平面図である。
【図２】同溝蓋の一部切欠き状態の側面図である。
【図３】同溝蓋の正面図である。
【図４】同溝蓋を溝ブロックに嵌め込んだ状態で示す縦
断正面図である。
【図５】本発明の他の実施例を図４に相応して示す縦断
正面図である。
【図６】従来例の溝蓋を溝ブロックに嵌め込んだ状態で
示す縦断正面図である。
【符号の説明】
１ 溝ブロック
２ 溝蓋
３ 溝開口
４ 蓋受け部
５ 内側面
６ 蓋支持面
７ 段部
９ 溝蓋本体
１０ 脚部
１０ｆ テ−パ面
１８ 回止め突起BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view of a groove cover showing one embodiment of the present invention. FIG. 2 is a side view of the groove cover in a partially cut-out state. FIG. 3 is a front view of the groove cover. FIG. 4 is a longitudinal sectional front view showing a state where the groove cover is fitted into a groove block. 5 is a longitudinal sectional front view showing another embodiment of the present invention corresponding to FIG. 4; FIG. 6 is a longitudinal sectional front view showing a conventional groove cover fitted in a groove block. [Description of Signs] 1 Groove block 2 Groove lid 3 Groove opening 4 Lid receiving part 5 Inner side surface 6 Lid support surface 7 Step 9 Groove lid main body 10 Leg 10 f Taper surface 18 Twist stop projection
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) E03F 5/04 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 7 , DB name) E03F 5/04
Claims (1)
溝ブロックの前記溝開口内に金属製の溝蓋を支持する装
置であって、 前記溝ブロックは前記溝開口内に蓋受け部を相対向状に
備えており、その蓋受け部は、ほぼ垂直な内側面と、こ
の内側面の下端から段部を介して内方へ下り傾斜状に延
設した蓋支持面とを形成してあり、 前記溝蓋は、前記溝ブロックの相対向する内側面間に納
められる溝蓋本体と、この溝蓋本体の下面の両側から下
向きに突設した一対の脚部とを備え、各脚部は、前記溝蓋本体の幅方向外方に面する垂直の外
辺部と、この外辺部の下端に連続形成されて前記蓋支持
面に当接するテーパ面とを有する形に形成されるととも
に、溝蓋本体の幅方向外端部の直下より幅方向内方に偏
した位置に設定されており、 前記外辺部には、前記段部上に接当係合して前記溝蓋本
体の幅方向外端部が前記蓋受け部の内側面に衝突するの
を防止する回止め突起が、前記溝蓋本体の幅方向外端部
の直下より外方へ突出することのないよう設けられ てい
ることを特徴とする溝ブロックへの溝蓋支持装置。(57) An apparatus for supporting a metal groove cover in a groove opening of a concrete groove block having a groove opening at an upper end, wherein the groove block is formed by the groove A lid receiving portion is provided in the opening so as to face each other, and the lid receiving portion is provided with a substantially vertical inner surface and a lid which extends inward from a lower end of the inner surface through a step portion so as to be inclined. A support surface, wherein the groove cover is a groove cover body received between opposing inner surfaces of the groove block, and a pair of leg portions projecting downward from both sides of a lower surface of the groove cover body. And each leg portion has a vertical outer surface facing outward in the width direction of the groove lid body.
Side and the lower end of the outer side are continuously formed to support the lid.
With a tapered surface that abuts the surface
The inward in the width direction from just below the widthwise outer end of the groove lid body.
The outer edge portion is brought into contact with the step portion to engage with the groove cover.
The outer end of the body in the width direction collides with the inner surface of the lid receiving part.
The rotation preventing projection is provided at the outer end in the width direction of the groove lid body.
A groove cover supporting device for a groove block, which is provided so as not to protrude outward from immediately below the groove block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13403999A JP3380185B2 (en) | 1999-05-14 | 1999-05-14 | Groove lid support device for groove block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13403999A JP3380185B2 (en) | 1999-05-14 | 1999-05-14 | Groove lid support device for groove block |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000319977A JP2000319977A (en) | 2000-11-21 |
| JP3380185B2 true JP3380185B2 (en) | 2003-02-24 |
Family
ID=15118952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13403999A Expired - Lifetime JP3380185B2 (en) | 1999-05-14 | 1999-05-14 | Groove lid support device for groove block |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3380185B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3665892B2 (en) * | 2000-12-22 | 2005-06-29 | 株式会社宝機材 | Grating |
| JP2007016560A (en) * | 2005-07-11 | 2007-01-25 | Fortec:Kk | Side ditch |
| CN106869288B (en) * | 2017-03-07 | 2018-12-14 | 徐州卧牛山新型防水材料有限公司 | A kind of floor drain of fixation |
-
1999
- 1999-05-14 JP JP13403999A patent/JP3380185B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000319977A (en) | 2000-11-21 |
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