JPS6318558U - - Google Patents
Info
- Publication number
- JPS6318558U JPS6318558U JP10966586U JP10966586U JPS6318558U JP S6318558 U JPS6318558 U JP S6318558U JP 10966586 U JP10966586 U JP 10966586U JP 10966586 U JP10966586 U JP 10966586U JP S6318558 U JPS6318558 U JP S6318558U
- Authority
- JP
- Japan
- Prior art keywords
- cover
- hook
- lid
- crowbar
- hole
- 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.)
- Granted
Links
- 210000000078 claw Anatomy 0.000 claims description 5
Description
図面は本考案の一実施例を示し、第１図はマン
ホール蓋に塞板及び鈎爪を取付けた状態の側面断
面図、第２図はバール孔の平面図、第３図は塞板
をドライバーで上方に開いた状態を示す側面断面
図、第４図はバールにより鈎爪を外し蓋を開く状
態を示す側面断面図。
１……蓋、２……受枠、３……バール孔、４…
…塞板、５……スプリング、６……蓋・裏面の突
設部、７……鈎爪、７ａ……レバー、８……鈎爪
の係止部、９……バール、９ａ……爪、１０……
ドライバー。
The drawings show one embodiment of the present invention; Fig. 1 is a side cross-sectional view of the manhole cover with the closing plate and hook attached, Fig. 2 is a plan view of the crowbar hole, and Fig. 3 is the closing plate with a screwdriver. FIG. 4 is a side sectional view showing the state in which the lid is opened upward by removing the claw using a crowbar and the lid is opened. 1... Lid, 2... Receiving frame, 3... Burl hole, 4...
...Closing plate, 5...Spring, 6...Protruding part on the lid/back side, 7...Claw, 7a...Lever, 8...Latching part of hook, 9...Crowbar, 9a...Claw , 10...
driver.
Claims (1)
された蓋１とからなる地下構造物の蓋において、
蓋１の周縁に蓋開閉用のバール孔３を開設し、こ
のバール孔には塞板４を取付け、スプリング５に
より塞板端部を圧して、その動きを拘束し、ある
限度以上の内圧に対しては、塞板は自動的に開き
安全弁的役目をし、又内圧が下れば自動的に閉の
状態に復帰可能な構造とする。 更にバール孔３の下方には、蓋１の裏面周縁の
突設部６に鈎爪７を装着し、又受枠２の内部周縁
には鈎爪の係止部８を設け、蓋１の閉時には、鈎
爪７は係止部８に係止された状態とし、蓋１を開
くには塞板４を上方に開き、爪付専用バール９を
装入し、この爪９ａにより鈎爪７のレバー７ａを
押し下げ鈎爪の係止を外して、蓋１が開口可能に
なる事を特徴とした地下構造物用蓋の孔、及び蓋
の開閉構造。[Scope of Claim for Utility Model Registration] A cover for an underground structure consisting of a receiving frame 2 and a cover 1 that fits into the receiving frame and is arranged to be openable and closable,
A crowbar hole 3 for opening and closing the lid is provided on the periphery of the lid 1, a closing plate 4 is attached to the crowbar hole, and a spring 5 presses the end of the closing plate to restrain its movement and prevent the internal pressure from exceeding a certain limit. In contrast, the closing plate is designed to automatically open and function as a safety valve, and to be able to automatically return to the closed state when the internal pressure drops. Furthermore, below the crowbar hole 3, a hook 7 is attached to a protrusion 6 on the periphery of the back surface of the lid 1, and a hook latching portion 8 is provided on the inner periphery of the receiving frame 2. , the hook 7 is locked in the locking part 8, and in order to open the lid 1, open the cover plate 4 upwards, insert the special crowbar 9 with a claw, and use the claw 9a to lock the lever of the hook 7. A hole in a cover for an underground structure and a structure for opening and closing the cover, characterized in that the cover 1 can be opened by pushing down 7a and releasing the hook.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10966586U JPH042207Y2 (en) | 1986-07-16 | 1986-07-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10966586U JPH042207Y2 (en) | 1986-07-16 | 1986-07-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6318558U true JPS6318558U (en) | 1988-02-06 |
| JPH042207Y2 JPH042207Y2 (en) | 1992-01-24 |
Family
ID=30987967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10966586U Expired JPH042207Y2 (en) | 1986-07-16 | 1986-07-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH042207Y2 (en) |
-
1986
- 1986-07-16 JP JP10966586U patent/JPH042207Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH042207Y2 (en) | 1992-01-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS61144588U (en) | ||
| JPS6318558U (en) | ||
| JPS6232163Y2 (en) | ||
| JPS6024Y2 (en) | Sealed water heater | |
| JPH076203Y2 (en) | Locking device for manhole iron lid | |
| JPH0230478U (en) | ||
| JPH0270041U (en) | ||
| JPS62110462U (en) | ||
| JPH0250442U (en) | ||
| JPS6435863U (en) | ||
| JPS6266945U (en) | ||
| JPH0161805U (en) | ||
| JPH0423783U (en) | ||
| JPH0331248Y2 (en) | ||
| JPS627446U (en) | ||
| JPS6255650U (en) | ||
| JPS6358348U (en) | ||
| JPH0242952U (en) | ||
| JPH03107330U (en) | ||
| JPS639566U (en) | ||
| JPS62172642U (en) | ||
| JPH036355U (en) | ||
| JPS61132998U (en) | ||
| JPS6171770U (en) | ||
| JPS6314647U (en) |