JPS6365750U - - Google Patents
Info
- Publication number
- JPS6365750U JPS6365750U JP15818986U JP15818986U JPS6365750U JP S6365750 U JPS6365750 U JP S6365750U JP 15818986 U JP15818986 U JP 15818986U JP 15818986 U JP15818986 U JP 15818986U JP S6365750 U JPS6365750 U JP S6365750U
- Authority
- JP
- Japan
- Prior art keywords
- stopper
- tip
- iron
- cover
- lever
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 14
- 229910052742 iron Inorganic materials 0.000 claims description 7
- 230000037431 insertion Effects 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims description 2
Description
第１図は、この考案の施錠装置の一実施態様を
示す部分断面図、第２図は、第１図のＡ―Ａ線断
面図、第３図は、この考案の施錠装置を開く状態
を示す断面図、第４図は、従来の施錠装置の平面
図、第５図は、同部分断面図である。
図面において、１……鉄蓋、１Ａ……手鍵挿入
孔、２……長孔、３……ボルト、４……受枠、４
Ａ……突片、５……ストツパー、６……ストツパ
ー、６Ａ……先端下面、６Ｂ……ピン、６Ｃ……
先端上面、７……水平回転軸、８……カム板、９
……レバー、９Ａ……蓋板、１０……バランスウ
エイト、１１……手鍵、１２……突起。
Fig. 1 is a partial sectional view showing an embodiment of the locking device of this invention, Fig. 2 is a sectional view taken along the line A-A in Fig. 1, and Fig. 3 shows the locking device of this invention in an open state. 4 is a plan view of a conventional locking device, and FIG. 5 is a partial sectional view of the same. In the drawing, 1... iron lid, 1A... hand key insertion hole, 2... long hole, 3... bolt, 4... receiving frame, 4
A... protrusion, 5... stopper, 6... stopper, 6A... bottom surface of tip, 6B... pin, 6C...
Top surface of tip, 7...Horizontal rotation axis, 8...Cam plate, 9
... Lever, 9A ... Lid plate, 10 ... Balance weight, 11 ... Hand key, 12 ... Protrusion.
Claims (1)
に取り付けられた、側面にピンを有し、先端にわ
ん曲した下面を有するストツパーと、前記鉄蓋が
嵌め込まれる受枠の内側に設けられた、前記スト
ツパーの先端上面と係合する突片と、前記鉄蓋と
前記ストツパーとの間の前記鉄蓋の下部に前記ス
トツパーの移動方向と直角に取り付けられた水平
回転軸と、前記水平回転軸に固定された、前記ピ
ンと係合するカム板と、前記水平回転軸に固定さ
れた、先端に前記鉄蓋に明けられた手鍵挿入孔と
合致する蓋板を有するレバーと、前記水平回転軸
に固定されたバランスウエイトとからなり、前記
レバーを前記水平回転軸を中心として回転させる
と、前記ストツパーが前記カム板を介して後退し
て、前記ストツパーと前記突片との係合が解除さ
れ、一方、前記鉄蓋を前記受枠内に落し込むと、
前記ストツパーの先端下面が前記突片を滑つて前
記ストツパーが後退し、この後直ちに前記バラン
スウエイトの重量によつて前記ストツパーが前進
して、前記ストツパーの先端上面と前記突片とが
係合することを特徴とする、マンホール用鉄蓋の
施錠装置。 a stopper that is horizontally movably attached to the lower part of the manhole iron cover and has a pin on the side and a curved bottom surface at the tip; a protruding piece that engages with the top surface of the tip of the stopper; a horizontal rotating shaft that is attached to the lower part of the iron cover between the iron cover and the stopper at right angles to the moving direction of the stopper; and a horizontal rotating shaft that is fixed to the horizontal rotating shaft. a cam plate that engages with the pin; a lever that is fixed to the horizontal rotation shaft and has a cover plate at its tip that matches a hand key insertion hole formed in the iron lid; and a lever that is fixed to the horizontal rotation shaft. When the lever is rotated about the horizontal axis of rotation, the stopper retreats via the cam plate, and the engagement between the stopper and the protruding piece is released. , when the iron lid is dropped into the receiving frame,
The lower surface of the tip of the stopper slides on the protrusion and the stopper retreats, and then the stopper is immediately moved forward by the weight of the balance weight, and the upper surface of the tip of the stopper and the protrusion engage. A locking device for an iron manhole cover, which is characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15818986U JPH0437971Y2 (en) | 1986-10-17 | 1986-10-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15818986U JPH0437971Y2 (en) | 1986-10-17 | 1986-10-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6365750U true JPS6365750U (en) | 1988-04-30 |
| JPH0437971Y2 JPH0437971Y2 (en) | 1992-09-07 |
Family
ID=31081446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15818986U Expired JPH0437971Y2 (en) | 1986-10-17 | 1986-10-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0437971Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007327217A (en) * | 2006-06-07 | 2007-12-20 | Yodo Casting:Kk | Manhole structure |
-
1986
- 1986-10-17 JP JP15818986U patent/JPH0437971Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007327217A (en) * | 2006-06-07 | 2007-12-20 | Yodo Casting:Kk | Manhole structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0437971Y2 (en) | 1992-09-07 |