JPH0538138Y2 - - Google Patents
Info
- Publication number
- JPH0538138Y2 JPH0538138Y2 JP16258787U JP16258787U JPH0538138Y2 JP H0538138 Y2 JPH0538138 Y2 JP H0538138Y2 JP 16258787 U JP16258787 U JP 16258787U JP 16258787 U JP16258787 U JP 16258787U JP H0538138 Y2 JPH0538138 Y2 JP H0538138Y2
- Authority
- JP
- Japan
- Prior art keywords
- hinge
- hole seat
- manhole cover
- cover
- hinge structure
- 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
- 239000002184 metal Substances 0.000 claims description 7
- 230000000694 effects Effects 0.000 description 3
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は下水道マンホール等におけるマンホー
ル蓋の蝶番構造に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a hinge structure for a manhole cover in a sewer manhole or the like.
最近の下水道マンホールは、第１図に示すよう
な蝶番構造を採るものが多くなつて来た。
Recently, many sewer manholes have adopted a hinge structure as shown in Figure 1.
即ち、マンホール蓋受枠１の内縁に孔座２を設
け、この孔座２に挿通した蝶番金物３を蓋４に枢
着５した構造で、蝶番金物３の下端には両側に突
出するストツパ７が設けられている。 That is, a hole seat 2 is provided on the inner edge of the manhole cover receiving frame 1, and a hinge metal fitting 3 inserted through the hole seat 2 is pivotally attached to the cover 4.A stopper 7 is provided at the lower end of the hinge metal fitting 3 and protrudes from both sides. It is provided.
この蝶番構造を持つマンホール蓋４を開被する
方法は、普通の蝶番を使うものとは異なり、図示
のように先ず鍵８を反対側に設けた鍵孔又は引掛
部９に先端を引掛けて矢印方向に引張り、次いで
第２図に示す矢印方向に回動して開被する方法を
採る。 The method for opening the manhole cover 4 with this hinge structure is different from using a normal hinge. First, as shown in the figure, the tip of the manhole cover 4 is hooked into the keyhole or hook 9 provided on the opposite side of the key 8. The method is to pull it in the direction of the arrow and then rotate it in the direction of the arrow shown in FIG. 2 to open it.
この方法は、180°反転させて開被させる場合に
比して力を要しないが、それでも相当の力を要す
ると共に、通常蓋４を斜に引くことが多いため、
蝶番金物３が孔座２に引掛り重くなることが多
い。 Although this method does not require as much force as flipping the cover 180 degrees and opening it, it still requires considerable force and usually the lid 4 is often pulled diagonally.
The hinge hardware 3 often gets caught on the hole seat 2 and becomes heavy.
また蝶番金物３はストツパ６を有するレバー状
のものであるため、閉鎖する場合、蝶番金物３が
孔座２内に滑らかに落ちず、まごつくことがあ
る。 In addition, since the metal hinge 3 is lever-shaped with a stopper 6, the metal hinge 3 does not fall smoothly into the hole seat 2 when closing, which may cause confusion.
そこで本考案はこのようなことの少ない蝶番構
造を提供しようとするものである。 Therefore, the present invention aims to provide a hinge structure that is less likely to cause such problems.
本考案は上記の問題点を解決するためになされ
たもので、孔座２に転子６を設けたものである。
The present invention was made to solve the above problems, and a trochanter 6 is provided on the perforation seat 2.
開閉時における孔座と蝶番金物の摩擦抵抗が尠
くなるため、蓋の開閉が楽になる。
The frictional resistance between the hole seat and the hinge metal during opening and closing is reduced, making it easier to open and close the lid.
第３図は本考案の実施例に示すもので、マンホ
ール蓋受枠１の内縁に孔座２を設け、この孔座２
に挿通した蝶番金物３を蓋４に枢着５したマンホ
ール蓋の蝶番構造において、前記孔座２に転子６
を回動自在に設けたものである。
FIG. 3 shows an embodiment of the present invention, in which a hole seat 2 is provided on the inner edge of the manhole cover receiving frame 1.
In the manhole cover hinge structure in which a hinge metal fitting 3 inserted through the hole is pivotally attached 5 to the cover 4, a trochanter 6 is attached to the hole seat 2.
is rotatably provided.
以上の構造であると、鍵７を掛けて引いた時蝶
番金物３と孔座２との摩擦抵抗は小さくなり引張
り開被動作が軽くなる。 With the above structure, when the key 7 is engaged and pulled, the frictional resistance between the hinge hardware 3 and the hole seat 2 is reduced, and the pulling and opening operation is lightened.
また閉鎖時に蝶番金物３が滑らかに孔座２に落
ちるため、蝶番金物３による抵抗感が無くなる。 Furthermore, since the hinge hardware 3 smoothly falls into the hole seat 2 when closing, the feeling of resistance due to the hinge hardware 3 is eliminated.
蝶番付マンホール蓋の開閉動作が楽になる効果
がある。
This has the effect of making it easier to open and close hinged manhole covers.
第１図は従来品の縦断面図、第２図は蓋の開被
動作の説明図、第３図は本考案の実施例の要部構
造を示す断面図である。
１……マンホール蓋受枠、２……孔座、３……
蝶番金物、４……蓋、６……転子、７……ストツ
パ、８……鍵。
FIG. 1 is a longitudinal sectional view of a conventional product, FIG. 2 is an explanatory view of the opening and closing operation of the lid, and FIG. 3 is a sectional view showing the main structure of an embodiment of the present invention. 1... Manhole cover holder frame, 2... Hole seat, 3...
Hinge hardware, 4...lid, 6...trochanter, 7...stopper, 8...key.
Claims (1)
の孔座２に挿通した蝶番金物３を蓋４に枢着５し
たマンホール蓋の蝶番構造において、前記孔座２
に転子６を設けたことを特徴とするマンホール蓋
の蝶番構造。 In a manhole cover hinge structure in which a hole seat 2 is provided on the inner edge of the manhole cover receiving frame 1, and a hinge metal fitting 3 inserted through the hole seat 2 is pivotally attached 5 to the cover 4, the hole seat 2
A hinge structure for a manhole cover characterized by having a trochanter 6 at the top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16258787U JPH0538138Y2 (en) | 1987-10-26 | 1987-10-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16258787U JPH0538138Y2 (en) | 1987-10-26 | 1987-10-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0169848U JPH0169848U (en) | 1989-05-09 |
| JPH0538138Y2 true JPH0538138Y2 (en) | 1993-09-27 |
Family
ID=31446546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16258787U Expired - Lifetime JPH0538138Y2 (en) | 1987-10-26 | 1987-10-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0538138Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH077393Y2 (en) * | 1989-10-05 | 1995-02-22 | 長島鋳物株式会社 | Lid hinge device for underground structures |
| JP2588687Y2 (en) * | 1993-12-21 | 1999-01-13 | 株式会社 福原鋳物製作所 | Manhole cover |
-
1987
- 1987-10-26 JP JP16258787U patent/JPH0538138Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0169848U (en) | 1989-05-09 |
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