JPH11124894A - Metallic grating - Google Patents
Metallic gratingInfo
- Publication number
- JPH11124894A JPH11124894A JP30975197A JP30975197A JPH11124894A JP H11124894 A JPH11124894 A JP H11124894A JP 30975197 A JP30975197 A JP 30975197A JP 30975197 A JP30975197 A JP 30975197A JP H11124894 A JPH11124894 A JP H11124894A
- Authority
- JP
- Japan
- Prior art keywords
- thickness
- main member
- grating
- main
- members
- 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.)
- Pending
Links
Landscapes
- Sewage (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、側溝用金属製グレ
ーチングに関し、特に主部材間の隙間幅が小さな細目タ
イプに適した金属製グレーチングに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal grating for a gutter, and more particularly to a metal grating suitable for a fine type having a small gap between main members.
【０００２】[0002]
【従来の技術】役場などの官公庁或いは文化財施設や観
光地等、例えば公園や神社仏閣に通じる道路の側溝（雨
水溝）には、排水を良くするためにグレーチングが用い
られ、強度的な観点から、一般に金属製グレーチングが
多用されている。そして、近年、安全性を重視し、車椅
子等のタイヤやハイヒールなどの靴の踵が格子内に嵌ま
り込まないようにするため、細目タイプの金属製グレー
チングが登場してきている。2. Description of the Related Art Gutters are used to improve drainage in public offices such as government offices, cultural property facilities, sightseeing spots, etc., for example, gutters (rain drains) on roads leading to parks and shrines and temples. Therefore, metal grating is generally used frequently. In recent years, in order to prevent the heels of tires such as wheelchairs and shoes such as high heels from being fitted into the lattice, fine-grained metal gratings have appeared in recent years.
【０００３】[0003]
【発明が解決しようとする課題】しかるに、こうした場
所では自然との調和から玉砂利などの小石が敷かれてい
るケースが多く、グレーチングを使用した場合、小石や
ゴミ、さらにはタバコの吸いがら等が格子内に詰まり易
くなる欠点があった。特に、前記細目タイプのグレーチ
ングを使用すると、目詰りが激しくなった。そして、一
旦、砂利が格子内に詰まると、取出しが困難で、掃除が
できなくなる問題があった。すなわち、従来の主部材は
一定厚みの帯板を用い、帯幅方向を上下にして所定ピッ
チで平行配設したものであるため、帯板を抜け切るまで
隣り合う帯板間の隙間距離が同じで、この格子隙間に物
が詰まると上から取出すのも、また、下へ落とすのにも
困難を極めた。また、小石などが詰まると、これをさら
に上から踏みつけることによって硬い小石が主部材を曲
げることになり、金属製グレーチングそのものを歪ま
せ、景観を損ねていた。However, in such places, pebbles such as cobblestones are often laid in harmony with nature. If grating is used, pebbles, garbage, and even cigarette smoke are removed. There was a drawback that the grid easily clogged. In particular, when the fine type grating was used, clogging became severe. Then, once the gravel is clogged in the lattice, there is a problem that it is difficult to remove the gravel and it cannot be cleaned. That is, the conventional main member uses a band plate having a constant thickness and is arranged in parallel at a predetermined pitch with the band width direction up and down, so that the gap distance between adjacent band plates is the same until the band plate is completely removed. Therefore, when things were clogged up in the lattice gap, it was extremely difficult to remove from the top and to drop it down. Moreover, when the pebbles are clogged, the hard pebbles bend the main member by stepping on the pebble from above, distorting the metal grating itself and damaging the landscape.
【０００４】本発明は、上記問題点を解決するもので、
細目タイプの金属製グレーチングにあっても、小石等に
よる目詰りが起き難く、万一、詰まっても簡単に抜き落
とすことができる金属製グレーチングを提供することを
目的とする。[0004] The present invention solves the above problems,
It is an object of the present invention to provide a metal grating which is hard to be clogged with small stones even in the case of fine-type metal grating and can be easily pulled out even if it is clogged.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するた
め、請求項１に係る発明の要旨は、複数の帯板状の主部
材と複数の棒状の連結材とで格子状に形成する金属製グ
レーチングにあって、該主部材の帯幅方向を上下にして
主部材間の隙間幅を所定ピッチで平行に配設し、且つ、
該主部材は上端面の厚みより下端面の厚みを小さくして
横断面視テーパ状に形成すると共に、これら主部材上に
複数の連結材をクロスさせ電気圧接により格子状に形成
したことを特徴とする金属製グレーチングにある。請求
項２に係る発明は、請求項１で、主部材は、主部材間の
隙間幅を２ｍｍ〜２０ｍｍの範囲内のピッチで平行に配
設し、帯板高さを１９ｍｍ〜１００ｍｍの範囲内にし
て、且つ、｛（上端面の厚み−下端面の厚み）／帯板高
さ｝のテーパ度合を０．０５〜０．５としたことを特徴
とする。In order to achieve the above object, the gist of the invention according to claim 1 is that a plurality of strip-shaped main members and a plurality of rod-shaped connecting members are formed in a grid shape. In the grating, the gap width between the main members is arranged in parallel at a predetermined pitch with the band width direction of the main member up and down, and,
The main member is formed in a tapered shape in cross section by making the thickness of the lower end surface smaller than the thickness of the upper end surface, and a plurality of connecting members are crossed on these main members and formed in a grid shape by electric pressure welding. Metal grating. According to a second aspect of the present invention, in the first aspect, the main members are arranged in parallel with a gap width between the main members at a pitch within a range of 2 mm to 20 mm, and a height of the strip is within a range of 19 mm to 100 mm. And a taper degree of {(thickness of upper end face−thickness of lower end face) / strip height} is set to 0.05 to 0.5.
【０００６】請求項１の発明のごとく、主部材が上端面
の厚みより下端面の厚みを小さくした横断面視テーパ状
に形成されると、小石等が格子内で引っ掛る箇所が一点
であるので、目詰りが起き難くなる。万一、目詰りが起
きても、主部材が下方に向かい広がっているので、何か
で目詰り物を突っつけば簡単に下方へ落下する。According to the first aspect of the present invention, when the main member is formed to have a tapered shape in a cross-sectional view in which the thickness of the lower end face is made smaller than the thickness of the upper end face, there is only one point where pebbles and the like are caught in the lattice. Therefore, clogging hardly occurs. Even if clogging occurs, the main member extends downward, so if the clogging object is hit with something, it will easily fall down.
【０００７】[0007]
【発明の実施の形態】以下、本発明に係る金属製グレー
チングの実施形態について詳述する。 （１）実施形態１ 図１〜図３は本発明の金属製グレーチング（以下、単に
「グレーチング」という。）の一形態で、図１はその全
体斜視図、図２は図１の部分縦断面図、図３は主部材の
斜視図を示す。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an embodiment of a metal grating according to the present invention will be described in detail. (1) Embodiment 1 FIGS. 1 to 3 show an embodiment of a metal grating (hereinafter simply referred to as "grating") of the present invention. FIG. 1 is an overall perspective view thereof, and FIG. 2 is a partial longitudinal section of FIG. FIG. 3 and FIG. 3 are perspective views of the main member.
【０００８】グレーチングＡは全体形状が規格化された
直方体状をなし、主部材１と連結材２と側板３とから構
成される。多数の主部材１，１，…とこれに直交する連
結材２で格子状に形成して、その周囲を一定幅の側板３
で囲む（図１）。グレーチングＡは、雨水排水溝等の側
溝５の両側の支持部５１に載置される。The grating A has a rectangular parallelepiped shape whose entire shape is standardized, and is composed of a main member 1, a connecting member 2, and a side plate 3. A large number of main members 1, 1,... And a connecting member 2 orthogonal thereto are formed in a lattice shape, and the periphery thereof is a side plate 3 having a fixed width.
(Figure 1). The grating A is placed on the support portions 51 on both sides of the side groove 5 such as a rainwater drainage groove.
【０００９】主部材１は、ここでは長手方向等断面形状
で、上端面１１の厚みｔ1 より下端面１２の厚みｔ2 を
小さくして横断面視テーパ状に形成した帯板である（図
３）。ここで、主部材の上端面の厚みｔ1 は、グレーチ
ングの強度及びテーパ度合の確保や総重量等を鑑み、３
ｍｍ〜３０ｍｍの範囲内とする。該主部材１の帯板高さ
ｈについては１９ｍｍ〜１００ｍｍの範囲内にするのが
好適となる。帯板高さｈが１９ｍｍ未満だと強度的に弱
く、路上用グレーチングとして役立たなくなり、逆に、
１００ｍｍを越えると重量が重くなってしまうためであ
る。特に、細目タイプのグレーチングに難がでる。The main member 1 is a strip having a uniform cross-section in the longitudinal direction and formed in a tapered shape in cross section by making the thickness t 2 of the lower end face 12 smaller than the thickness t 1 of the upper end face 11 (FIG. 1). 3). Here, the thickness t 1 of the upper end surface of the main member is set at 3 in consideration of securing the strength of the grating and the degree of taper, the total weight, and the like.
mm to 30 mm. It is preferable that the strip height h of the main member 1 be in the range of 19 mm to 100 mm. If the strip height h is less than 19 mm, the strength is weak, and it is not useful as road grating, and conversely,
If it exceeds 100 mm, the weight becomes heavy. In particular, it is difficult to perform fine grating.
【００１０】一方、主部材１のテーパ度合については、
上端面１１の厚みｔ1 が下端面１２の厚みｔ2 より小さ
ければよい。グレーチングＡを変形させる硬い小石が詰
まっても、テーパがついていれば力を加えることによっ
て下方へ抜け出させることが可能だからである（図
２）。ただ、帯板高さｈが前述の１９ｍｍ〜１００ｍｍ
の範囲で、｛（上端面の厚み−下端面の厚み）／帯板高
さ｝のテーパ度合を０．０５〜０．５の範囲内にするの
がより好ましい。０．０５未満になると、テーパの先細
傾向が小さく、格子内に弾性，収縮性の詰り物がある場
合などでは、その取除きにやはり苦労するからである。
一方、０．５を越えると、下端面１２の厚みｔ2 が上端
面厚みに比し小さくなりすぎ、主部材１の下端面１２近
くの機械的強度に難が出はじめるからである。さらに、
主部材１の下端面部分が尖って鋭角の刃物形状に近づ
き、組立て作業等で怪我する虞れがでてくるからであ
る。帯板高さｈが斯る１９ｍｍ〜１００ｍｍの範囲で、
｛（上端面の厚み−下端面の厚み）／帯板高さ｝のテー
パ度合を０．０５〜０．５の範囲内にあれば、テーパ度
合が丁度都合よく、硬い小石だけでなく、小枝やタバコ
の吸いがら等の弾性，収縮性をもつこうした雑物が格子
内に詰まっても、ちょっとした力で落下させることがで
き、好都合になる。斯る範囲を図３の角度θで表せば、
７５゜＜θ＜８８．５゜にほぼ匹敵する。On the other hand, regarding the degree of taper of the main member 1,
It is sufficient that the thickness t 1 of the upper end face 11 is smaller than the thickness t 2 of the lower end face 12. This is because even if hard pebbles that deform the grating A are clogged, if the small pebbles are tapered, they can be pulled down by applying force (FIG. 2). However, the height h of the strip is 19 mm to 100 mm.
It is more preferable to set the taper degree of {(thickness of upper end face−thickness of lower end face) / strip height} in the range of 0.05 to 0.5. If it is less than 0.05, the taper is less likely to taper, and if there is an elastic or shrinkable clogging in the lattice, it is still difficult to remove it.
On the other hand, because if it exceeds 0.5, too small thickness t 2 of the lower end surface 12 than the upper end surface thickness, begin out flame mechanical strength of the lower end surface 12 near the main member 1. further,
This is because the lower end portion of the main member 1 is sharpened and approaches a sharp-edged blade shape, and there is a possibility that the main member 1 may be injured in assembling work or the like. In the range of the band plate height h of 19 mm to 100 mm,
If the taper degree of {(thickness of upper end face-thickness of lower end face) / strip height} is in the range of 0.05 to 0.5, the taper degree is just convenient, and not only hard pebbles but also twigs Even if such a foreign substance having elasticity and shrinkage such as cigarette smoke and cigarette smoke is clogged in the lattice, it can be dropped with a small force, which is convenient. If such a range is represented by the angle θ in FIG.
It is almost equal to 75 ° <θ <88.5 °.
【００１１】そして、前記主部材１の帯幅方向を上下に
して、主部材間の隙間幅δを所定ピッチ（好ましくは２
ｍｍ〜２０ｍｍの範囲内のピッチ）で平行配設した後、
これら主部材上に複数の連結材２がクロス配設され、電
気圧接により格子状のグレーチングＡが形成される。隙
間幅δを２ｍｍ〜２０ｍｍの範囲内に設定することによ
って、車椅子のタイヤやハイヒールなどの靴の踵が格子
内に入り込めない細目タイプのグレーチングＡとなる。
隙間幅δが２ｍｍ未満であっても、勿論、細目タイプに
なるが、２ｍｍ未満となると排水に支障をきたすことか
ら除外される。一方、隙間幅δが２０ｍｍを越えると、
ハイヒール等が格子内に入り込み易くなるこから、本発
明でいう細目タイプのグレーチングＡとは呼べない。The gap width δ between the main members is set to a predetermined pitch (preferably 2
After being arranged in parallel at a pitch within the range of
A plurality of connecting members 2 are arranged in a cross on these main members, and a grating-like grating A is formed by electric pressure welding. By setting the gap width δ in the range of 2 mm to 20 mm, a fine type grating A in which the heel of a shoe such as a wheelchair tire or high heel cannot enter the lattice.
If the gap width δ is less than 2 mm, it is of course a fine type, but if the gap width δ is less than 2 mm, it is excluded from the problem of drainage. On the other hand, when the gap width δ exceeds 20 mm,
Since high heels and the like easily enter the lattice, it cannot be called the fine type grating A in the present invention.
【００１２】前記連結材２（通称、「クロスバー」とい
う。）は、金属製棒状材を捩ったツイスト棒からなる
（図４参照）。連結材２は、上端面１１を上にして主部
材１を複数立設した状態として、これらに直交するよう
にして所定間隔Ｗを離して主部材上面に載置される。そ
して、主部材１と連結材２とを電気圧接固定して格子状
のグレーチングＡが組立てられる。具体的には、主部材
１に連結材２を格子状に載置し、その一方から他方に電
流を流し、接合部４に大電流を集中させ、これによって
生ずるジュール熱を熱源として接合部４を加熱する。加
熱温度は、主部材１の材質たる炭素鋼の再結晶温度以上
とする。次いで、連結材２の上から主部材１の上端面１
１上へ圧力を加える。連結材２が上端面１１とほぼ面一
になるまで埋め込む。大きな圧力を加えることによっ
て、塑性変形を起こさせ圧接固定を確かなものとする。
主部材１の上端面１１は従来の帯板の一定厚みｔ1 と違
いその部分の厚みｔ1 が大であるため安定し且つ接合部
４が広くなり、同じ重量品でも主部材１と連結材２が強
固に結合することになる。The connecting member 2 (commonly referred to as "crossbar") is formed of a twisted bar obtained by twisting a metal bar (see FIG. 4). The connecting member 2 is placed on the upper surface of the main member 1 at a predetermined interval W so as to be orthogonal to the main member 1 with a plurality of main members 1 standing upright with the upper end surface 11 facing upward. Then, the main member 1 and the connecting member 2 are fixed by electric pressure welding to assemble the grating-like grating A. More specifically, the connecting member 2 is placed on the main member 1 in a grid pattern, a current is applied from one side to the other, and a large current is concentrated on the joint 4. Heat. The heating temperature is equal to or higher than the recrystallization temperature of the carbon steel as the material of the main member 1. Next, the upper end surface 1 of the main member 1 is
1. Apply pressure on top. The connecting member 2 is embedded until it is substantially flush with the upper end surface 11. By applying a large pressure, plastic deformation is caused to secure the pressure contact.
The upper end face 11 of the main member 1 is made wider stable and junction 4 since the thickness t 1 of constant thickness t 1 and the difference portion thereof is large in a conventional strip, connecting member also to the main member 1 in the same weight products 2 will be strongly bonded.
【００１３】側板３は、主部材１と連結材２とで格子状
に規格形成された直方体の側面を補強するものである。
各主部材１の両端面に側板３を当てがい、溶接接合す
る。本実施形態では、側板３はアングルでＬ形にしてい
る。The side plate 3 reinforces a side surface of a rectangular parallelepiped formed in a lattice shape by the main member 1 and the connecting member 2.
The side plates 3 are applied to both end surfaces of each main member 1 and welded. In the present embodiment, the side plate 3 is angled and L-shaped.
【００１４】このように構成したグレーチングＡは、主
部材１が横断面視テーパ状に形成されているので、目詰
りが起きにくい。特に、自転車や車椅子等の車輪、或い
はヒールの踵が入り込み難い細目タイプのグレーチング
Ａにするにあたって、効を奏する。排水機能はいつまで
も初期の高いレベルを保つ。そして、万一、格子内に砂
利等の小石が入り込んで詰っても、少し下へ押し込んで
やると、隣り合う主部材間の隙間幅δが下端面１２へ行
くにしたがい広がっているので、簡単に下方へ落ち、目
詰りを解消する（図２）。隙間幅δが下方広がりである
ため、掃除も楽になる。さらに、主部材１が、帯板高さ
ｈを１９ｍｍ〜１００ｍｍの範囲内にして、且つ、
｛（上端面の厚み−下端面の厚み）／帯板高さ｝のテー
パ度合を０．０５〜０．５とすると、テーパ度合がほど
よく、弾性や収縮性のあるタバコの吸がら等の雑物でも
容易に除去できる。In the grating A configured as described above, since the main member 1 is formed in a tapered shape in cross section, clogging hardly occurs. In particular, the present invention is effective in making a fine type grating A in which a wheel such as a bicycle or a wheelchair or a heel of a heel hardly enters. The drainage function keeps the initial high level forever. And even if pebbles such as gravel enter the grid and get clogged, if you push it down slightly, the gap width δ between adjacent main members expands as you go to the lower end surface 12, so it is easy And clogging is eliminated (FIG. 2). Since the gap width δ extends downward, cleaning becomes easy. Further, the main member 1 sets the band plate height h in a range of 19 mm to 100 mm, and
When the taper degree of {(thickness of upper end face−thickness of lower end face) / strip height} is set to 0.05 to 0.5, the degree of taper is moderate, and elasticity and shrinkage of cigarette wicking etc. Even foreign substances can be easily removed.
【００１５】また、硬い小石等が格子内にその下半分を
中途半端に突っ込み、その上から踏んで主部材１を曲げ
ようとしても、主部材１の上端面１１の厚みｔ1 が下端
面１２の厚みｔ2 より大きく、頑丈にできているので、
グレーチングＡを変形させるのは至難になる。加えて、
連結材２を主部材１に電気圧接により固定するのである
が、連結材２は主部材１の厚みｔ1 が大なる上端面１１
上に電気圧接させるので、グレーチングの全体重量が同
じであっても、接合部４が大きく頑強となり、組立てら
れた格子の保形維持に極めて優れたものとなる。かくし
て、従来のごとく、グレーチング自身が歪んで景観を損
ねていた不具合はなくなり、いつまでも当初の綺麗な形
を維持する。Further, even if a hard pebble or the like pushes the lower half of the lattice halfway into the lattice and tries to bend the main member 1 from above, the thickness t 1 of the upper end surface 11 of the main member 1 is reduced to the lower end surface 12. greater than the thickness t 2 of, because it can be robust,
It is extremely difficult to deform grating A. in addition,
The connecting member 2 is fixed to the main member 1 by electric pressure welding, and the connecting member 2 has an upper end surface 11 where the thickness t 1 of the main member 1 is large.
Due to the electric pressure welding on the upper side, even if the entire weight of the grating is the same, the joint portion 4 becomes large and robust, and it is extremely excellent in maintaining the shape of the assembled lattice. Thus, as in the past, the problem that the grating itself was distorted and damaged the landscape is eliminated, and the original beautiful shape is maintained forever.
【００１６】（２）実施形態２ 本実施形態のグレーチングＡは、図４〜図６のごとく、
主部材１の上端面１１に凹溝１６を形成したものであ
る。細目タイプのグレーチングＡでは、隙間幅δが狭く
なる分、上面に滑り易い金属面の占める面積比率が大き
くなる。そこで、本実施形態では主部材１の上端面１１
に滑り止め用の凹溝１６を形成し、雨天時等において
も、グレーチング上で転ばないようにしている（図
４）。(2) Embodiment 2 As shown in FIGS. 4 to 6, grating A of this embodiment
A groove 16 is formed in the upper end surface 11 of the main member 1. In the fine type grating A, the smaller the gap width δ, the larger the area ratio of the slippery metal surface on the upper surface. Therefore, in the present embodiment, the upper end surface 11 of the main member 1
A non-slip groove 16 is formed on the grating so that it does not fall on the grating even in rainy weather or the like (FIG. 4).
【００１７】具体的には、主部材１の上端面１１に、一
側１７から他側１８へと斜向する凹溝１６を多数形成
し、平面視で、該凹溝１６と該主部材１の一側１７との
交点を通って主部材１に直交させた直線が該主部材１の
他側地点で該上端面１１の領域内に全て入り込むと共
に、該凹溝１６と該主部材１の他側１８との交点を通っ
て主部材１に直交させた直線が該主部材１の一側地点で
該上端面１１の領域内に全て入り込むようにしている。
ここで、凹溝１６は、上底と下底が交互に現われる台形
の上端面１１ができるよう「ハ」の字状に一定ピッチで
繰り返している（図５）。凹溝１６をハの字状としたの
は、各方向からのノンスリップ効果が得られるためであ
る。図６を見ながら更に詳細に説明すれば、平面視で、
凹溝１６と主部材１に係る一側１７との交点ａを通って
主部材１に直交させたいずれの直線Ｌ１も主部材１の他
側地点で上端面１１の領域内に入り込む構成である。凹
溝１６と主部材１に係る他側１８との交点ｂを通って主
部材１に直交させたいずれの直線Ｌ２も、主部材１の一
側地点で上端面１１の領域内に入り込む。台形形状の上
端面１１の下底角部ｃを通って直交線Ｌ３を引くと、隣
の反転した台形形状した上端面１１の下底角部ｄが必ず
直交線Ｌ３を乗り越えて入り込んだ状態になっている。
斯る構成の主部材１を採用することで、連結材２が必ず
各主部材１の上端面１１に載り、連結材２を主部材１に
電気圧接固定した際、該連結材２が曲がりくねることを
回避できる構成にある。Specifically, on the upper end surface 11 of the main member 1, a large number of concave grooves 16 which are inclined from one side 17 to the other side 18 are formed. A straight line perpendicular to the main member 1 through an intersection with one side 17 enters the region of the upper end surface 11 at the other side point of the main member 1, and the concave groove 16 and the main member 1 A straight line perpendicular to the main member 1 through an intersection with the other side 18 is entirely inserted into the area of the upper end face 11 at one side point of the main member 1.
Here, the concave grooves 16 are repeated at a constant pitch in a “C” shape so as to form a trapezoidal upper end surface 11 in which upper and lower bottoms appear alternately (FIG. 5). The reason why the concave groove 16 is formed in a C shape is that a non-slip effect from each direction can be obtained. More specifically, referring to FIG. 6, in plan view,
Any straight line L1 orthogonal to the main member 1 through the intersection point a between the concave groove 16 and one side 17 of the main member 1 enters the region of the upper end surface 11 at the other side point of the main member 1. . Any straight line L2 orthogonal to the main member 1 through the intersection point b between the concave groove 16 and the other side 18 of the main member 1 enters the region of the upper end surface 11 at one side point of the main member 1. When the orthogonal line L3 is drawn through the lower base corner c of the trapezoidal upper end surface 11, the lower base corner d of the adjacent inverted trapezoidal upper end surface 11 always crosses the orthogonal line L3 and enters. Has become.
By adopting the main member 1 having such a configuration, when the connecting member 2 is always placed on the upper end surface 11 of each main member 1 and the connecting member 2 is fixed to the main member 1 by electric pressure welding, the connecting member 2 winds. It is in a configuration that can avoid this.
【００１８】このように構成することで、主部材間の隙
間を狭くした金属面比率の高い細目タイプのグレーチン
グＡにおいて、ノンスリップ効果を発揮し、グレーチン
グ上で滑り易くなる欠点を解決する。好ましいことに
は、上端面１１の厚みｔ1 が大になるため、滑り止め用
凹溝１６を形成するのは打ってつけとなる。そして、凹
溝１６が形成されても、前述の構成を採ることによっ
て、連結材２が凹溝１６に落ち込まず整然と直線状に配
設された製品に仕上がる。本実施形態の側板３は、単な
る一定厚みの帯板を用いている。他のグレーチングの構
成及び作用，効果は実施形態１と同様で、その説明を省
略する。実施形態１と同一符号は、同一又は相当部分を
示す。With this configuration, the non-slip effect is exhibited in the fine type grating A having a high metal surface ratio in which the gap between the main members is narrowed, and the disadvantage that slipping occurs on the grating is solved. Preferably, since the thickness t 1 of the upper end face 11 is large, the formation of the anti-slip groove 16 is a hit. And even if the concave groove 16 is formed, by adopting the above-described configuration, the connecting member 2 does not fall into the concave groove 16 and is finished in an orderly and linearly arranged product. The side plate 3 of the present embodiment uses a band plate having a simple constant thickness. Other structures, functions, and effects of the grating are the same as those of the first embodiment, and the description thereof is omitted. The same reference numerals as those in the first embodiment denote the same or corresponding parts.
【００１９】尚、本発明においては、前記実施形態に示
すものに限らず、目的，用途等に応じて本発明の範囲内
で種々変更できる。主部材１，連結材２，側板３等の形
状，大きさ，個数等はは用途に合わせて適宜選択でき
る。It should be noted that the present invention is not limited to the embodiments described above, but can be variously modified within the scope of the present invention depending on the purpose, application, and the like. The shape, size, number, and the like of the main member 1, the connecting member 2, the side plate 3, and the like can be appropriately selected according to the application.
【００２０】[0020]
【発明の効果】以上のごとく、本発明の金属製グレーチ
ングは、細目タイプにあっても、目詰りが起き難く、万
一、目詰りしても、詰まった物を楽に取り除くことがで
き、極めて有益である。As described above, even if the metal grating of the present invention is of a fine type, clogging hardly occurs, and even if clogged, the clogged material can be easily removed, and the metal grating can be extremely easily removed. It is informative.
【図１】実施形態１に係る金属製グレーチングの斜視図
である。FIG. 1 is a perspective view of a metal grating according to a first embodiment.
【図２】図１の部分縦断面図である。FIG. 2 is a partial longitudinal sectional view of FIG.
【図３】主部材の斜視図である。FIG. 3 is a perspective view of a main member.
【図４】実施形態２の金属製グレー部分斜視図である。FIG. 4 is a perspective view of a metal gray part according to the second embodiment.
【図５】主部材の斜視図である。FIG. 5 is a perspective view of a main member.
【図６】図４の平面図である。FIG. 6 is a plan view of FIG. 4;
１ 主部材 １１ 上端面 １２ 下端面 ２ 連結材 ｈ 帯板高さ ｔ1 上端面の厚み ｔ2 下端面の厚み δ 隙間幅1 main member 11 upper surface 12 lower surface 2 connecting material h the strip height t1 upper end face of the thickness t 2 the lower end surface of the thickness δ gap width
Claims (2)
結材とで格子状に形成する金属製グレーチングにあっ
て、 該主部材の帯幅方向を上下にして主部材間の隙間幅を所
定ピッチで平行に配設し、且つ、該主部材は上端面の厚
みより下端面の厚みを小さくして横断面視テーパ状に形
成すると共に、これら主部材上に複数の連結材をクロス
させ電気圧接により格子状に形成したことを特徴とする
金属製グレーチング。1. A metal grating formed of a plurality of strip-shaped main members and a plurality of rod-shaped connecting members in a lattice shape, wherein a gap between the main members is set such that the width direction of the main members is up and down. The width is arranged in parallel at a predetermined pitch, and the main member is formed into a tapered shape in a cross-sectional view by making the thickness of the lower end surface smaller than the thickness of the upper end surface, and a plurality of connecting members are formed on these main members. A metal grating, which is cross-shaped and formed in a grid by electric pressure welding.
ｍ〜２０ｍｍの範囲内のピッチで平行に配設し、帯板高
さを１９ｍｍ〜１００ｍｍの範囲内にして、且つ、
｛（上端面の厚み−下端面の厚み）／帯板高さ｝のテー
パ度合を０．０５〜０．５とした請求項１記載の金属製
グレーチング。2. The main member has a gap width between the main members of 2 m.
arranged in parallel at a pitch in the range of m to 20 mm, the height of the strip is in the range of 19 mm to 100 mm, and
The metal grating according to claim 1, wherein a taper degree of {(thickness of upper end face-thickness of lower end face) / strip height} is 0.05 to 0.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30975197A JPH11124894A (en) | 1997-10-23 | 1997-10-23 | Metallic grating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30975197A JPH11124894A (en) | 1997-10-23 | 1997-10-23 | Metallic grating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11124894A true JPH11124894A (en) | 1999-05-11 |
Family
ID=17996860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30975197A Pending JPH11124894A (en) | 1997-10-23 | 1997-10-23 | Metallic grating |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11124894A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102373749A (en) * | 2011-11-11 | 2012-03-14 | 水利部交通运输部国家能源局南京水利科学研究院 | Large-discharge-capacity telescopic grid for improving safety of traditional manhole cover |
-
1997
- 1997-10-23 JP JP30975197A patent/JPH11124894A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102373749A (en) * | 2011-11-11 | 2012-03-14 | 水利部交通运输部国家能源局南京水利科学研究院 | Large-discharge-capacity telescopic grid for improving safety of traditional manhole cover |
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