JPH0229938U - - Google Patents
Info
- Publication number
- JPH0229938U JPH0229938U JP10637488U JP10637488U JPH0229938U JP H0229938 U JPH0229938 U JP H0229938U JP 10637488 U JP10637488 U JP 10637488U JP 10637488 U JP10637488 U JP 10637488U JP H0229938 U JPH0229938 U JP H0229938U
- Authority
- JP
- Japan
- Prior art keywords
- bolt
- iron lid
- resistant
- pressure
- insertion 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.)
- Pending
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 24
- 229910052742 iron Inorganic materials 0.000 claims description 12
- 238000003780 insertion Methods 0.000 claims description 7
- 230000037431 insertion Effects 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 238000012856 packing Methods 0.000 description 1
Description
第１図はこの考案の１実施例を示しａは部分省
略平面図、ｂはａのＡ１―Ａ１断面拡大図、ｃは
ａのＡ２―Ａ２断面拡大図、第２図は従来の耐圧
又は防水鉄蓋の１例を示しａは部分省略平面図、
ｂはａのＢ―Ｂ断面拡大図である。
２１……受枠、２２……鉄蓋、２３……ボルト
止め部、２９……パツキング、３２……ボルト挿
通孔、３４……ボルト係止部、３５……ボルト、
３５ａ……ボルト頭部、３５ｂ……ボルトねじ部
、３６，３７……緩み止め付きナツト、３９……
ボルト挿通用案内部。
Fig. 1 shows one embodiment of this invention, where a is a partially omitted plan view, b is an enlarged cross-sectional view from A1 to A1 of a, c is an enlarged cross-sectional view from A2 to A2 of a, and Fig. 2 is a conventional This is an example of a pressure-resistant or waterproof iron lid, and a is a partially omitted plan view.
b is an enlarged cross-sectional view taken along the line B-B of a. 21... Receiving frame, 22... Iron cover, 23... Bolt stopper, 29... Packing, 32... Bolt insertion hole, 34... Bolt locking part, 35... Bolt,
35a... Bolt head, 35b... Bolt thread part, 36, 37... Nut with locking lock, 39...
Guide section for bolt insertion.
Claims (1)
するボルト止め部を具えた耐圧又は防水鉄蓋にお
いて、前記ボルト止め部が、前記鉄蓋に穿設され
たボルト挿通孔と、そのボルト挿通孔に対応して
前記受枠に設けられ頭部を下側にしたボルトの頭
部を脱着可能にボルト軸方向上方への移動及び回
転を係止するボルト係止部と、そのボルト係止部
に頭部側が係止されねじ部が前記ボルト挿通孔を
通り抜けているボルトと、そのボルトのねじ部先
端側に螺合したナツトとからなる耐圧又は防水鉄
蓋。 (2) 請求項(1)に記載の耐圧又は防水鉄蓋におい
て、前記ボルト係止部と鉄蓋下面との間に空隙を
設けてその空隙内で鉄蓋下面に当接しないように
前記ボルトの途中に螺合したボルト固定ナツトを
設けた耐圧又は防水鉄蓋。 (3) 請求項(1)又は(2)に記載の耐圧又は防水鉄
蓋において、前記ボルト挿通孔の下部を下方に拡
大したボルト挿通用案内部に形成した耐圧又は防
水鉄蓋。[Scope of Claim for Utility Model Registration] (1) A pressure-resistant or water-resistant iron lid that is equipped with a bolting part for bolting the iron lid in a closed state to the receiving frame, wherein the bolting part is bored in the iron lid. a bolt insertion hole, and a bolt lock that is provided in the receiving frame in correspondence with the bolt insertion hole and that removably locks the head of the bolt with the head facing downwards from upward movement and rotation in the axial direction of the bolt; A pressure-resistant or waterproof iron lid comprising: a bolt whose head side is locked to the bolt locking portion and whose threaded portion passes through the bolt insertion hole; and a nut screwed onto the tip end of the threaded portion of the bolt. (2) In the pressure-resistant or waterproof iron lid according to claim (1), a gap is provided between the bolt locking portion and the lower surface of the iron lid, and the bolt is arranged so that it does not come into contact with the lower surface of the iron lid within the gap. A pressure-resistant or waterproof iron lid with a screwed bolt fixing nut in the middle. (3) In the pressure-resistant or waterproof iron lid according to claim (1) or (2), the pressure-resistant or waterproof iron lid is formed as a bolt insertion guide portion in which the lower part of the bolt insertion hole is enlarged downward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10637488U JPH0229938U (en) | 1988-08-10 | 1988-08-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10637488U JPH0229938U (en) | 1988-08-10 | 1988-08-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0229938U true JPH0229938U (en) | 1990-02-26 |
Family
ID=31339826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10637488U Pending JPH0229938U (en) | 1988-08-10 | 1988-08-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0229938U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5877926B1 (en) * | 2015-10-09 | 2016-03-08 | 首都高速道路株式会社 | Leakage prevention structure for bridge and method for forming the same |
| JP2021001463A (en) * | 2019-06-20 | 2021-01-07 | 日之出水道機器株式会社 | Installation method of pressure proof water proof iron cover |
-
1988
- 1988-08-10 JP JP10637488U patent/JPH0229938U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5877926B1 (en) * | 2015-10-09 | 2016-03-08 | 首都高速道路株式会社 | Leakage prevention structure for bridge and method for forming the same |
| JP2021001463A (en) * | 2019-06-20 | 2021-01-07 | 日之出水道機器株式会社 | Installation method of pressure proof water proof iron cover |
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