JPH0436403U - - Google Patents
Info
- Publication number
- JPH0436403U JPH0436403U JP7799590U JP7799590U JPH0436403U JP H0436403 U JPH0436403 U JP H0436403U JP 7799590 U JP7799590 U JP 7799590U JP 7799590 U JP7799590 U JP 7799590U JP H0436403 U JPH0436403 U JP H0436403U
- Authority
- JP
- Japan
- Prior art keywords
- manhole
- spirit level
- receiving frame
- wear
- amount
- 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 8
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims 2
Landscapes
- Length-Measuring Instruments Using Mechanical Means (AREA)
Description
図面の第１図は、この考案の第１実施例に係る
マンホール良否判定器の構成を示す斜視図であり
、第２図はその使用状態を示す側断面図であり、
第３図ａはこの考案の第２実施例に係るマンホー
ル良否判定器の構成を示す側面図、第３図ｂはそ
の正面図、第４図は使用状態を示す側面図である
。
１，１０……マンホール良否判定器、２……判
定板、１１……水準器、１１ｂ……気泡、１２…
…取付台、１３……突部、Ａ……鉄蓋、Ｂ……受
枠、Ｃ……受枠内周面、Ｄ……磨耗箇所、Ｅ……
磨耗していない箇所。
FIG. 1 of the drawings is a perspective view showing the configuration of a manhole quality determination device according to a first embodiment of the invention, and FIG. 2 is a side sectional view showing its usage condition.
FIG. 3a is a side view showing the configuration of a manhole quality determination device according to a second embodiment of the invention, FIG. 3b is a front view thereof, and FIG. 4 is a side view showing the state of use. 1, 10... Manhole quality judger, 2... Judgment board, 11... Spirit level, 11b... Air bubble, 12...
...Mounting base, 13... Protrusion, A... Iron cover, B... Receiving frame, C... Inner circumferential surface of receiving frame, D... Worn area, E...
Areas that are not worn out.
Claims (1)
円弧状に形成され、鉄蓋の上面に積み上げて前記
受枠内周面の上端と鉄蓋の上面との段差を判定す
る判定板を複数枚重束してなり、 前記判定板は受枠内周面の上端と鉄蓋の上面と
の段差が許容範囲にあるか否かを判定するために
複数層に色別されていることを特徴とするマンホ
ール良否判定器。 (2) 水準器の一側底部にマンホールの受枠磨耗
量を判定する箇所に当接する突部を設け、前記水
準器の他側底部を受枠の磨耗しない箇所に当接し
、前記受枠磨耗量が許容範囲内のときは前記水準
器の気泡が一側に位置し、受枠磨耗量が許容範囲
外のときは前記水準器の気泡が他側に位置するよ
うに構成されていることを特徴とするマンホール
良否判定器。[Claims for Utility Model Registration] (1) One end is formed in an arc shape that is almost the same as the inner peripheral surface of the receiving frame of the manhole, and is stacked on the upper surface of the iron cover, so that there is a difference in level between the upper end of the inner peripheral surface of the receiving frame and the upper surface of the iron cover. A plurality of judgment boards are stacked together to judge whether or not the height difference between the upper end of the inner circumferential surface of the receiving frame and the upper surface of the iron cover is within the allowable range. A manhole quality determination device characterized by: (2) Provide a protrusion on the bottom of one side of the spirit level that comes into contact with the part where the amount of wear on the manhole holder frame is to be judged, and then put the bottom part on the other side of the spirit level in contact with a part of the holder frame that is not worn, and check that the amount of wear on the holder frame is within the allowable range. The manhole is characterized in that the air bubbles in the spirit level are located on one side when the wear amount is within a range, and the air bubbles on the spirit level are located on the other side when the wear amount of the receiving frame is outside the allowable range. Good/fail judge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7799590U JPH0436403U (en) | 1990-07-23 | 1990-07-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7799590U JPH0436403U (en) | 1990-07-23 | 1990-07-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0436403U true JPH0436403U (en) | 1992-03-26 |
Family
ID=31620882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7799590U Pending JPH0436403U (en) | 1990-07-23 | 1990-07-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0436403U (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6017402B2 (en) * | 1981-04-07 | 1985-05-02 | チッソ株式会社 | Catalyst component for α-olefin polymerization |
| JPS621113B2 (en) * | 1980-06-19 | 1987-01-12 | Nitto Kohki Co | |
| JPS6443603U (en) * | 1987-09-11 | 1989-03-15 |
-
1990
- 1990-07-23 JP JP7799590U patent/JPH0436403U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS621113B2 (en) * | 1980-06-19 | 1987-01-12 | Nitto Kohki Co | |
| JPS6017402B2 (en) * | 1981-04-07 | 1985-05-02 | チッソ株式会社 | Catalyst component for α-olefin polymerization |
| JPS6443603U (en) * | 1987-09-11 | 1989-03-15 |
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