JPS61164344U - - Google Patents
Info
- Publication number
- JPS61164344U JPS61164344U JP4855085U JP4855085U JPS61164344U JP S61164344 U JPS61164344 U JP S61164344U JP 4855085 U JP4855085 U JP 4855085U JP 4855085 U JP4855085 U JP 4855085U JP S61164344 U JPS61164344 U JP S61164344U
- Authority
- JP
- Japan
- Prior art keywords
- piece
- pawl
- locking piece
- locking
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- 229910052742 iron Inorganic materials 0.000 claims 1
- 210000000078 claw Anatomy 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
Description
第１図は本案を実施した全体の正面断面図、第
２図は一部を変更実施した全体の正面断面図、第
３図は良部の動作状態の正面断面図、第４図は同
じく要部の一部断面斜視図、第５図は第４図の矢
印Ｐの部位により表した動作説明図、第６図は従
来構造の要部を示した正面断面図を示す。
１……蓋体、２……受枠、３……円錐受面、４
……透孔、５……段付部、６……駒、７……鍵孔
、８……盤体、９……爪、１０……係止片、１１
……カムＭ、１２……カムＮ、１３……爪、１４
……顎部、１５……蝶番、１６……ピン、１７…
…爪部、１８……蝶番受を兼ねる顎部、１９……
手鍵、２０……バール用切欠部、２１……バール
。
Fig. 1 is a front sectional view of the entire structure after implementing the present invention, Fig. 2 is a front sectional view of the entire structure with some changes made, Fig. 3 is a front sectional view of the operating state of the good parts, and Fig. 4 is the same essential part. FIG. 5 is a diagram illustrating the operation indicated by the arrow P in FIG. 4, and FIG. 6 is a front sectional view showing the main parts of the conventional structure. 1... Lid body, 2... Receiving frame, 3... Conical receiving surface, 4
... Through hole, 5 ... Stepped part, 6 ... Piece, 7 ... Keyhole, 8 ... Board, 9 ... Claw, 10 ... Locking piece, 11
...Cam M, 12...Cam N, 13...Claw, 14
...Jaw, 15...Hinge, 16...Pin, 17...
...Claw portion, 18... Jaw portion that also serves as a hinge holder, 19...
Hand key, 20... cutout for crowbar, 21... crowbar.
Claims (1)
を有する透孔を構成し、該透孔に遊嵌する鍵孔を
有する回転自在な駒、及びその下面に前記段部を
挾んで抜止用の爪を有する盤体を構成し、該抜止
用の爪が係脱する部位に受枠より係止片を突設し
、前記盤体の下面、及び該係止片の相接する面に
それぞれ対となる斜板カムを構成し、且つ蓋体の
駒取付部と対をなす部位に別個の爪、若くは爪部
を有する螺番を有し、該爪部を係止する顎部を受
枠に有することを特徴とするマンホール鉄蓋。 One end of the lid body has a through hole with a step at a slightly eccentric part toward the center, a rotatable piece having a keyhole that loosely fits into the through hole, and a rotatable piece having the step on its lower surface to prevent it from coming out. A locking piece is provided protruding from the receiving frame at a portion where the locking pawl engages and disengages, and a locking piece is provided on the lower surface of the disk body and a surface in contact with the locking piece, respectively. The pair of swash plate cams has a separate pawl, or rather a screw thread having a pawl, in the part that is paired with the piece attachment part of the lid, and the jaw part that locks the pawl part is attached to the receiving frame. A manhole iron cover characterized by having.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4855085U JPH0312828Y2 (en) | 1985-04-01 | 1985-04-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4855085U JPH0312828Y2 (en) | 1985-04-01 | 1985-04-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61164344U true JPS61164344U (en) | 1986-10-11 |
| JPH0312828Y2 JPH0312828Y2 (en) | 1991-03-26 |
Family
ID=30564916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4855085U Expired JPH0312828Y2 (en) | 1985-04-01 | 1985-04-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0312828Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0278643U (en) * | 1988-11-28 | 1990-06-18 |
-
1985
- 1985-04-01 JP JP4855085U patent/JPH0312828Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0278643U (en) * | 1988-11-28 | 1990-06-18 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0312828Y2 (en) | 1991-03-26 |
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