JPH0369048U - - Google Patents

Info

Publication number
JPH0369048U
JPH0369048U JP13130889U JP13130889U JPH0369048U JP H0369048 U JPH0369048 U JP H0369048U JP 13130889 U JP13130889 U JP 13130889U JP 13130889 U JP13130889 U JP 13130889U JP H0369048 U JPH0369048 U JP H0369048U
Authority
JP
Japan
Prior art keywords
receiving frame
lid body
outer peripheral
stepped
manhole cover
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
Application number
JP13130889U
Other languages
Japanese (ja)
Other versions
JPH0728201Y2 (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1989131308U priority Critical patent/JPH0728201Y2/en
Publication of JPH0369048U publication Critical patent/JPH0369048U/ja
Application granted granted Critical
Publication of JPH0728201Y2 publication Critical patent/JPH0728201Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案の一実施例に係るマンホールの
蓋の平面図、第２図は第１図のＡ−Ａ線縦断面図
、第３図は従来のマンホールの蓋の縦断面図、第
４図は他の従来のマンホールの蓋の縦断面図であ
る。 １……受枠、２……蓋本体、３……内周面、４
……上部、５……下部、６……段付面、７……外
周面、８……突起部。 Fig. 1 is a plan view of a manhole cover according to an embodiment of the present invention, Fig. 2 is a longitudinal sectional view taken along the line A-A in Fig. 1, and Fig. 3 is a longitudinal sectional view of a conventional manhole cover. FIG. 4 is a longitudinal sectional view of another conventional manhole cover. 1... Receiving frame, 2... Lid body, 3... Inner peripheral surface, 4
... Upper part, 5 ... Lower part, 6 ... Stepped surface, 7 ... Outer peripheral surface, 8 ... Projection.

Claims (1)

【実用新案登録請求の範囲】 地面に埋設される環状の受枠と、この受枠の上
部に内嵌される円板状の蓋本体とを備え、受枠の
内周面を上部が大径で小径の段付円筒面に形成し
、受枠の内周面の上部及び蓋本体の外周面を勾配
が同じ下細りのテーパ面に形成したマンホールの
蓋において、 受枠の段付面と蓋本体の外周部の裏面とのいず
れか一方に、周方向に等間隔を置いて３つの突起
部を形成し、受枠に蓋本体を内嵌した状態で、こ
れら突起部が内周面の段付面と蓋本体の外周部の
裏面との他方に当接されるように構成した事を特
徴とする、マンホールの蓋。[Claim for Utility Model Registration] Comprising an annular receiving frame buried in the ground and a disc-shaped lid body fitted into the upper part of the receiving frame, the inner circumferential surface of the receiving frame has a large diameter at the top and a small diameter at the top. In a manhole cover that is formed into a stepped cylindrical surface and the upper part of the inner peripheral surface of the receiving frame and the outer peripheral surface of the lid body are formed into a tapered surface with the same slope, the stepped surface of the receiving frame and the outer peripheral part of the lid body are Three protrusions are formed at equal intervals in the circumferential direction on either side of the back surface, and when the lid body is fitted into the receiving frame, these protrusions connect the stepped surface of the inner peripheral surface and the lid body. A manhole cover characterized in that it is configured to be in contact with the other side of the outer peripheral part and the back side.
JP1989131308U 1989-11-11 1989-11-11 Manhole cover Expired - Lifetime JPH0728201Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989131308U JPH0728201Y2 (en) 1989-11-11 1989-11-11 Manhole cover

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989131308U JPH0728201Y2 (en) 1989-11-11 1989-11-11 Manhole cover

Publications (2)

Publication Number Publication Date
JPH0369048U true JPH0369048U (en) 1991-07-09
JPH0728201Y2 JPH0728201Y2 (en) 1995-06-28

Family

ID=31678824

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989131308U Expired - Lifetime JPH0728201Y2 (en) 1989-11-11 1989-11-11 Manhole cover

Country Status (1)

Country Link
JP (1) JPH0728201Y2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008237995A (en) * 2007-03-26 2008-10-09 Nakata Coating Co Ltd Fine air bubble producer, and washing device, showering device, and fish preserve using the same
JP2008237996A (en) * 2007-03-26 2008-10-09 Nakata Coating Co Ltd Fine air bubble producer, and washing device, showering device, and fish preserve using the same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53146262U (en) * 1977-04-25 1978-11-17
JPS545623A (en) * 1977-06-15 1979-01-17 Matsushita Electric Ind Co Ltd Code reading device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53146262U (en) * 1977-04-25 1978-11-17
JPS545623A (en) * 1977-06-15 1979-01-17 Matsushita Electric Ind Co Ltd Code reading device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008237995A (en) * 2007-03-26 2008-10-09 Nakata Coating Co Ltd Fine air bubble producer, and washing device, showering device, and fish preserve using the same
JP2008237996A (en) * 2007-03-26 2008-10-09 Nakata Coating Co Ltd Fine air bubble producer, and washing device, showering device, and fish preserve using the same

Also Published As

Publication number Publication date
JPH0728201Y2 (en) 1995-06-28

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