JP2565727Y2 - Manhole cover - Google Patents
Manhole coverInfo
- Publication number
- JP2565727Y2 JP2565727Y2 JP8018392U JP8018392U JP2565727Y2 JP 2565727 Y2 JP2565727 Y2 JP 2565727Y2 JP 8018392 U JP8018392 U JP 8018392U JP 8018392 U JP8018392 U JP 8018392U JP 2565727 Y2 JP2565727 Y2 JP 2565727Y2
- Authority
- JP
- Japan
- Prior art keywords
- manhole cover
- fitting portion
- hook
- concave fitting
- opening
- 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
Description
【０００１】[0001]
【産業上の利用分野】この考案は、マンホール蓋、特
に、マンホール蓋用開閉治具のフックが引っ掛かる係止
金具の交換が容易に行えるマンホール蓋に関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a manhole cover, and more particularly to a manhole cover in which a hook of a manhole cover opening / closing jig can be easily replaced.
【０００２】[0002]
【従来の技術】道路に設けられたマンホールの蓋は、そ
の上を走行する車によりガタついて騒音が発生しないよ
うに、受枠内にテーパー嵌合することが義務付けられて
いる。2. Description of the Related Art A manhole cover provided on a road is obliged to be tapered into a receiving frame so that a vehicle running on the cover does not rattle and generate noise.
【０００３】しかし、マンホール蓋は、受枠にテーパー
嵌合しているので、車の走行等のよってマンホール蓋が
受枠に食い込み、容易にあけることができない。そこ
で、従来のマンホール蓋の部分平面図である図５、図５
のＡ−Ａ線断面図である図６、および、こじり孔が形成
された部分のマンホール蓋の断面図である図７に示すよ
うに、マンホール蓋１の縁部に形成されたこじり孔２内
に、バール３やツルハシの先端を挿入し、受枠４をテコ
の支点としてマンホール蓋１をこじりあけ、この後、マ
ンホール蓋１の周縁部近傍に形成した凹嵌部５の相対す
る側壁5A間に固定された係止金具６に開閉治具７のフッ
ク８を引っ掛け、マンホール蓋１を引き上げていた。[0003] However, since the manhole cover is tapered into the receiving frame, the manhole cover bites into the receiving frame due to running of a car or the like and cannot be easily opened. 5 and 5 which are partial plan views of a conventional manhole cover.
As shown in FIG. 6 which is a cross-sectional view taken along the line AA of FIG. 6 and FIG. 7 which is a cross-sectional view of the manhole cover in which the prying hole is formed, the inside of the prying hole 2 Then, the tip of the burl 3 or the pickaxe is inserted, the manhole cover 1 is pryed with the receiving frame 4 as a fulcrum of the lever, and thereafter, between the opposing side walls 5A of the concave fitting portion 5 formed near the periphery of the manhole cover 1. The hook 8 of the opening / closing jig 7 is hooked on the fixed metal fitting 6, and the manhole cover 1 is pulled up.
【０００４】[0004]
【考案が解決しようとする課題】しかしながら、凹嵌部
５内の係止金具６は、凹嵌部５を構成する側壁と一体的
に鋳造されていたので、バール３やツルハシによってマ
ンホール蓋１をこじあけた後、開閉治具７を使用しない
で、バール３やツルハシによって係止金具６に無理やり
に引っ掛けてマンホール蓋１を引き上げると、係止金具
６が破損することがあった。係止金具６が破損すると、
マンホール蓋１が開閉できなくなるので、マンホール蓋
１を新しいものと交換するか、他の手段によってマンホ
ール蓋１をあけるしかなかった。However, since the locking fitting 6 in the concave fitting portion 5 is integrally cast with the side wall constituting the concave fitting portion 5, the manhole cover 1 is formed by the bur 3 or the pickaxe. When the manhole cover 1 is forcibly hooked on the latch 6 by the bur 3 or the pickaxe without using the opening / closing jig 7 without using the opening / closing jig 7, the latch 6 may be damaged. If the latch 6 is damaged,
Since the manhole cover 1 cannot be opened and closed, the only option is to replace the manhole cover 1 with a new one or open the manhole cover 1 by other means.
【０００５】従って、この考案の目的は、バールやツル
ハシによってマンホール蓋を引き上げる際に、バール等
によって凹嵌部内の係止金具が破損しても、係止金具の
みの交換が容易に行えるマンホール蓋を提供することに
ある。Accordingly, an object of the present invention is to provide a manhole cover that allows easy replacement of only the locking member even when the locking member in the recessed portion is damaged by the bur or the like when the manhole cover is pulled up by a crowbar or pickaxe. Is to provide.
【０００６】[0006]
【課題を解決するための手段】この考案は、開閉治具の
先端に形成されたフックが入り込む凹嵌部が形成され、
前記凹嵌部を形成する相対する側壁には、孔が形成さ
れ、前記孔内には、前記開閉治具の前記フックが引っ掛
かる係止金具が水平に且つ着脱自在に取り付けられてい
ることに特徴を有するものである。According to the present invention, a concave fitting portion into which a hook formed at the tip of an opening / closing jig enters is formed,
A hole is formed in the opposing side wall forming the concave fitting portion, and a locking fitting for hooking the hook of the opening / closing jig is horizontally and detachably mounted in the hole. It has.
【０００７】[0007]
【作用】マンホール蓋を引き上げる開閉治具のフックが
引っ掛かる金具をボルトまたはピン等の係止金具によっ
て構成し、この係止金具をマンホール蓋に形成された凹
嵌部に対して着脱自在に取り付けることによって、破損
し易い係止金具の交換が容易に行える。[Function] A metal fitting for hooking the opening / closing jig for lifting the manhole cover is formed by a locking metal such as a bolt or a pin, and the locking metal is detachably attached to a concave fitting portion formed on the manhole cover. This facilitates replacement of the easily damaged latch.
【０００８】[0008]
【実施例】次に、この考案のマンホール蓋の一実施態様
を、図面を参照しながら説明する。図１は、この考案の
マンホール蓋の一実施態様を示す平面図、図２は、図１
のＡ−Ａ線断面図である。Next, an embodiment of the manhole cover of the present invention will be described with reference to the drawings. FIG. 1 is a plan view showing an embodiment of the manhole cover of the present invention, and FIG.
FIG. 4 is a sectional view taken along line AA of FIG.
【０００９】図１および図２において、９は、マンホー
ル蓋10の周縁部近傍に形成された、開閉治具７のフック
８（図６参照）が入り込む凹嵌部である。凹嵌部９の相
対する側壁9Aには、ボルト孔9Bが形成されている。11
は、ボルト孔9B内に水平に挿入され、ナット12によりゴ
ムパッキン14を介して着脱自在に固定された、上記係止
金具としての機能を有する鋼製ボルトである。係止金具
は、ボルト以外に鋼製ピン等であっても良い。In FIGS. 1 and 2, reference numeral 9 denotes a concave fitting portion formed near the periphery of the manhole cover 10 and into which the hook 8 (see FIG. 6) of the opening and closing jig 7 enters. A bolt hole 9B is formed in the opposite side wall 9A of the concave fitting portion 9. 11
Is a steel bolt that is horizontally inserted into the bolt hole 9B, and is detachably fixed by a nut 12 via a rubber packing 14, and has a function as the above-described locking fitting. The locking fitting may be a steel pin or the like other than the bolt.
【００１０】このように、開閉治具７のフック８が引っ
掛かる係止金具を着脱自在なボルト11やピン等により構
成することによって、マンホール蓋10をバール３やツル
ハシ（図７参照）によって引き上げる際に、たとえ、係
止金具としてのボルト11が損傷しても、その交換が容易
に行える。なお、ボルト11またはピンは通常の鋼製のも
のを使用できるので、従来の鋳物製の金具に比較して損
傷しにくい。As described above, the manhole cover 10 is pulled up by the crowbar 3 or the pickaxe (see FIG. 7) by forming the locking fittings on which the hook 8 of the opening / closing jig 7 is hooked by the detachable bolts 11 and pins. In addition, even if the bolt 11 serving as the locking metal is damaged, it can be easily replaced. Since the bolt 11 or the pin can be made of ordinary steel, the bolt 11 or the pin is less likely to be damaged as compared with a conventional cast metal fitting.
【００１１】凹嵌部９内に砂等の異物が侵入すると、開
閉治具７のフック８をボルト11に係合させにくい。そこ
で、マンホール蓋の部分平面図である図３、および、図
３のＡ−Ａ線断面図である図４に示すように、凹嵌部９
内にボルト11を跨いでゴム栓13を嵌め込む。これによっ
て、凹嵌部９内には砂等の異物が侵入しない。ゴム栓13
の上端中央部には、薄肉部13A が形成されており、この
薄肉部13A をペンチ等によって把持すれば、ゴム栓13を
容易に凹嵌部９内から引き出せる。When foreign matter such as sand enters the concave fitting portion 9, it is difficult to engage the hook 8 of the opening and closing jig 7 with the bolt 11. Therefore, as shown in FIG. 3 which is a partial plan view of the manhole cover, and FIG. 4 which is a sectional view taken along line AA of FIG.
A rubber plug 13 is fitted over the bolt 11. Thus, foreign matter such as sand does not enter the concave fitting portion 9. Rubber stopper 13
A thin portion 13A is formed at the center of the upper end of the rubber plug 13. If the thin portion 13A is gripped with pliers or the like, the rubber plug 13 can be easily pulled out from the concave fitting portion 9.
【００１２】[0012]
【考案の効果】以上説明したように、この考案によれ
ば、開閉治具のフックが引っ掛かる係止金具を着脱自在
なボルトやピン等により構成することによって、係止金
具が損傷してもその交換が容易に行え、しかも、。開閉
治具のフックが挿入される凹嵌部にゴム栓を嵌め込むこ
とによって、凹嵌部の砂等による閉塞が防止できる等、
有用な効果がもたらされる。As described above, according to the present invention, even if the locking metal is damaged, the locking metal that the hook of the opening / closing jig is hooked on is constituted by a detachable bolt or pin. Replacement is easy, and. By inserting a rubber plug into the concave fitting portion into which the hook of the opening and closing jig is inserted, it is possible to prevent the concave fitting portion from being blocked by sand or the like.
A useful effect is provided.
【図１】この考案のマンホール蓋の一実施態様を示す部
分平面図である。FIG. 1 is a partial plan view showing an embodiment of the manhole cover of the present invention.
【図２】図１のＡ−Ａ線断面図である。FIG. 2 is a sectional view taken along line AA of FIG.
【図３】この考案の、ゴム栓が凹嵌部に嵌め込まれたマ
ンホール蓋の一実施態様を示す部分平面図である。FIG. 3 is a partial plan view showing one embodiment of the manhole cover of the present invention in which a rubber plug is fitted into a concave fitting portion.
【図４】図３のＡ−Ａ線断面図である。FIG. 4 is a sectional view taken along line AA of FIG. 3;
【図５】従来のマンホール蓋の部分平面図である。FIG. 5 is a partial plan view of a conventional manhole cover.
【図６】図５のＡ−Ａ線断面図である。FIG. 6 is a sectional view taken along line AA of FIG. 5;
【図７】こじり孔が形成された部分のマンホール蓋の断
面図である。FIG. 7 is a cross-sectional view of a manhole cover in a portion where a prying hole is formed.
１：マンホール蓋、 14：ゴムパッ
キン。２：こじり孔、３：バール、４：受枠、５：凹嵌
部、６：係止金具、７：開閉金具、８：フック、９：凹
嵌部、10：マンホール蓋、11：ボルト、12：ナット、1
3：ゴム栓、1: Manhole cover, 14: Rubber packing. 2: pry hole, 3: bar, 4: receiving frame, 5: concave fitting, 6: locking fitting, 7: opening / closing fitting, 8: hook, 9: concave fitting, 10: manhole cover, 11: bolt, 12 : Nut, 1
3: rubber stopper,
Claims (2)
り込む凹嵌部が形成され、前記凹嵌部を形成する相対す
る側壁には、孔が形成され、前記孔内には、前記開閉治
具の前記フックが引っ掛かる係止金具が水平に且つ着脱
自在に取り付けられていることを特徴とするマンホール
蓋。1. A concave fitting portion into which a hook formed at a tip of an opening / closing jig enters is formed, and a hole is formed in an opposing side wall forming the concave fitting portion. A manhole cover, wherein a hook for hooking the hook of the jig is horizontally and removably attached.
栓が嵌め込まれていることを特徴とする、請求項１記載
のマンホール蓋。2. The manhole cover according to claim 1, wherein a rubber plug is fitted into the concave fitting portion over the bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8018392U JP2565727Y2 (en) | 1992-10-26 | 1992-10-26 | Manhole cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8018392U JP2565727Y2 (en) | 1992-10-26 | 1992-10-26 | Manhole cover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0640047U JPH0640047U (en) | 1994-05-27 |
| JP2565727Y2 true JP2565727Y2 (en) | 1998-03-18 |
Family
ID=13711256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8018392U Expired - Lifetime JP2565727Y2 (en) | 1992-10-26 | 1992-10-26 | Manhole cover |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2565727Y2 (en) |
-
1992
- 1992-10-26 JP JP8018392U patent/JP2565727Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0640047U (en) | 1994-05-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |