JPH041243U - - Google Patents
Info
- Publication number
- JPH041243U JPH041243U JP4199190U JP4199190U JPH041243U JP H041243 U JPH041243 U JP H041243U JP 4199190 U JP4199190 U JP 4199190U JP 4199190 U JP4199190 U JP 4199190U JP H041243 U JPH041243 U JP H041243U
- Authority
- JP
- Japan
- Prior art keywords
- manhole cover
- key
- lock piece
- manhole
- receiving part
- 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 8
- 230000002093 peripheral effect Effects 0.000 claims 1
Description
第１図ないし第７図は本考案に係るマンホール
蓋の施錠装置の一実施例を示しており、第１図は
施錠状態の要部断面図、第２図は解錠状態の要部
断面図、第３図はマンホール蓋を開けた状態の要
部断面図、第４図は第１図における−線断面
図、第５図は全体の平面図、第６図は揺動錠片の
斜視図、第７図はマンホールキーの斜視図である
。第８図は従来例のマンホール蓋の施錠装置を示
す要部断面図である。
１……マンホール口、２……受枠、３……マン
ホール蓋、８……マンホールキー、９……キー孔
、１２……錠、１３……揺動錠片、１４ａ……受
け部、１６……軸、１７……ロツク爪、１９……
解除爪、２０……傾斜縁、２１……キー受け部、
２３……爪係合孔。
1 to 7 show an embodiment of the manhole cover locking device according to the present invention, FIG. 1 is a sectional view of the main part in the locked state, and FIG. 2 is a sectional view of the main part in the unlocked state. , Fig. 3 is a sectional view of the main part with the manhole cover open, Fig. 4 is a sectional view taken along the - line in Fig. 1, Fig. 5 is a plan view of the whole, and Fig. 6 is a perspective view of the swinging lock piece. , FIG. 7 is a perspective view of the manhole key. FIG. 8 is a sectional view of a main part of a conventional manhole cover locking device. DESCRIPTION OF SYMBOLS 1... Manhole opening, 2... Receiving frame, 3... Manhole cover, 8... Manhole key, 9... Key hole, 12... Lock, 13... Rocking lock piece, 14a... Receiving part, 16... ...Shaft, 17...Lock claw, 19...
Release claw, 20... Slanted edge, 21... Key receiving part,
23...Claw engagement hole.
Claims (1)
、マンホール蓋３を施錠する錠１２と、マンホー
ル蓋３を解錠するに用いられるマンホールキー８
とからなり、 上記錠１２は、マンホール蓋３の外周縁部寄り
に、マンホール蓋３の径方向内外に揺動自在に吊
り下げ状態で軸支した揺動錠片１３と、受枠２側
に揺動錠片１３と対向するよう設けた受け部１４
ａとを組み合わせてなり、 上記揺動錠片１３の受け部１４ａに面する外面
側には揺動錠片１３の自重によつて受け部１４ａ
と係合するロツク爪１７を設けてあり、 上記揺動錠片１３の内面側には解除爪１９を突
設し、該解除爪１９の上縁を爪先方向に下り傾斜
の傾斜縁２０に形成してあり、 上記マンホール蓋３には、マンホールキー８が
差し込まれるキー孔９を上記解除爪１９の上方に
位置するよう設けてあり、 上記マンホールキー８はこれの先端８ａを「く
」の字形に曲げ、その先端８ａに上記解除爪１９
の入る大きさの爪係合孔２３が設けられているこ
とを特徴とするマンホール蓋の施錠装置。 ２ 揺動錠片１３の内面側の解除爪１９の下側に
、キー受け部２１を設けてあり、 このキー受け部２１でマンホールキー８の先端
８ａを受けることにより、爪係合孔２３と解除爪
１９とが合致するようにしてある請求項１記載の
マンホール蓋の施錠装置。[Claims for Utility Model Registration] 1. A manhole cover 3 received in a receiving frame 2, a lock 12 for locking the manhole cover 3, and a manhole key 8 used to unlock the manhole cover 3.
The lock 12 includes a swinging lock piece 13 that is pivotally supported near the outer peripheral edge of the manhole cover 3 so as to be able to swing freely in and out of the manhole cover 3 in the radial direction, and a swinging lock piece 13 that swings on the receiving frame 2 side. A receiving portion 14 provided to face the movable lock piece 13
a, and the outer surface of the swinging lock piece 13 facing the receiving part 14a has a receiving part 14a formed by the weight of the swinging lock piece 13.
A lock pawl 17 is provided which engages with the pivoting lock piece 13, and a release pawl 19 is provided protruding from the inner surface of the swinging lock piece 13, and the upper edge of the release pawl 19 is formed into an inclined edge 20 that slopes downward in the direction of the toe. The manhole cover 3 is provided with a key hole 9 into which the manhole key 8 is inserted, located above the release claw 19. the release claw 19 at the tip 8a.
A locking device for a manhole cover, characterized in that a claw engaging hole 23 is provided with a size that allows a manhole cover to enter. 2. A key receiving part 21 is provided below the release claw 19 on the inner surface of the swinging lock piece 13, and by receiving the tip 8a of the manhole key 8 in the key receiving part 21, the key engaging hole 23 and the key receiving part 21 are connected. 2. The manhole cover locking device according to claim 1, wherein the release claw 19 is adapted to match.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4199190U JPH0743187Y2 (en) | 1990-04-19 | 1990-04-19 | Locking device for manhole cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4199190U JPH0743187Y2 (en) | 1990-04-19 | 1990-04-19 | Locking device for manhole cover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH041243U true JPH041243U (en) | 1992-01-08 |
| JPH0743187Y2 JPH0743187Y2 (en) | 1995-10-04 |
Family
ID=31553140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4199190U Expired - Lifetime JPH0743187Y2 (en) | 1990-04-19 | 1990-04-19 | Locking device for manhole cover |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0743187Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010196382A (en) * | 2009-02-25 | 2010-09-09 | Takigen Mfg Co Ltd | Cap for blocking cover opening operation implement insertion hole of underground buried object |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102441278B1 (en) * | 2021-03-03 | 2022-09-07 | 주식회사 호남금속 | Manhole cover with lock |
-
1990
- 1990-04-19 JP JP4199190U patent/JPH0743187Y2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010196382A (en) * | 2009-02-25 | 2010-09-09 | Takigen Mfg Co Ltd | Cap for blocking cover opening operation implement insertion hole of underground buried object |
| JP4666536B2 (en) * | 2009-02-25 | 2011-04-06 | タキゲン製造株式会社 | Cap for closing the opening operation tool insertion hole of buried objects |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0743187Y2 (en) | 1995-10-04 |
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