WO2004101900A9 - 地下構造物用蓋 - Google Patents
地下構造物用蓋Info
- Publication number
- WO2004101900A9 WO2004101900A9 PCT/JP2004/006388 JP2004006388W WO2004101900A9 WO 2004101900 A9 WO2004101900 A9 WO 2004101900A9 JP 2004006388 W JP2004006388 W JP 2004006388W WO 2004101900 A9 WO2004101900 A9 WO 2004101900A9
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lid
- receiving frame
- slope
- lid body
- underground structure
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/14—Covers for manholes or the like; Frames for covers
Definitions
- the present invention relates to a cover for an underground structure including a lid body and a receiving frame, and particularly to a support structure for the lid body and the receiving frame.
- the "cover for underground structure” as used in the specification of the present application refers to a manhole cover, a large iron cover, a sewage basin that closes an opening between an underground buried object in a sewer system, an underground structure facility, and the ground.
- Fire hydrant cover, water control valve cover, partition valve cover, air valve cover, gas pipe cover, water meter cover, etc. which function as an opening / closing door connecting the ground and the ground.
- a lid for an underground structure generally has a slope receiving structure in which a slope of an outer periphery of a lid body is cut into a slope of an inner circumference of a receiving frame to thereby fit and support the lid body to the receiving frame.
- JP-A-53-72357 describes a cover for an underground structure having a slope receiving structure in which the slope angle of the slope surface with respect to the vertical plane, that is, the slope angle is limited to 5 ° to 10 °. .
- the gradient angle in the device described in JP-A-53-72357, by limiting the gradient angle as described above, it is possible to secure a sufficient amount of biting into the receiving frame of the lid main body and the power of the lid main body. It is possible to remarkably reduce rattling, vibration and noise, and also has the effect of hardly causing the lid body to slip up (the phenomenon of cutting in obliquely instead of horizontally).
- Japanese Utility Model Publication No. 60-19162 discloses a gentle slope fitting portion formed in the middle of the slope of the lid body in order to prevent the lid body from getting into the receiving frame excessively.
- a gentle slope receiving part is formed in the middle of the slope of the receiving frame. It is described that a gap is formed between the gap and the gap.
- An object of the present invention is to provide a lid for an underground structure capable of preventing the lid main body from biting into the receiving frame excessively, and preventing the lid main body from entering the receiving frame at an angle or slipping up. It is in.
- a cover for an underground structure of the present invention includes a cover main body and a receiving frame, and is used for an underground structure in which a slope of an outer periphery of the cover body is fitted and supported by a slope of an inner circumference of the receiving frame.
- the slopes on the outer periphery of the lid body and the inner periphery of the receiving frame have upper and lower inclined surfaces, respectively, and the gradient of the lower inclined surface of each of the lid body and the receiving frame is steeper than that of the upper inclined surface.
- the lid body is fitted and supported in the receiving frame by the upper sloped surface and the lower sloped surface of the lid body and the receiving frame, respectively.
- a cover for an underground structure having a slope receiving structure if the slope of the slope body of the lid body and the receiving frame is steep, the biting force of the lid body into the receiving frame increases, and the lid body obliquely bites into or slips into the receiving frame.
- the rise can be suppressed, and if the slope on the slope surface becomes gentle, the biting force decreases, and excessive biting can be prevented.
- the present invention reduces the biting force of the lid body as a whole into the receiving frame by fitting and supporting the lid body to the receiving frame by upper and lower inclined surfaces having different slopes of the lid body and the receiving frame. It can be controlled, and it is possible to prevent the lid body from biting into the receiving frame excessively.
- the basic structure is to provide a slope on the upper part of the cylindrical part and a flange on the outer periphery of the lower part of the cylindrical part.
- the slope of the lower slope is made steeper than the slope of the upper slope, so that the receiving frame has high rigidity and a small amount of deformation with respect to external force, and the lower slope has a lower slope.
- Food of the lid body! / Mainly can be generated. As a result, the lid body is properly fitted and supported in the receiving frame, so that the lid body can be prevented from rattling or rising.
- the lid body is fitted and supported by the receiving frame at the two places of the upper inclined surface and the lower inclined surface, so that the lid main body can be securely fixed to the receiving frame, and the swing of the lid main body can be prevented. It can also prevent rattling.
- the boundary between the upper inclined surface and the lower inclined surface of the lid main body receiving frame is provided outside the lid main body. It is preferable that a gap is formed so that the periphery and the inner periphery of the receiving frame do not contact each other. By forming a gap in each of the lid body and the receiving frame in this manner, it is possible to adjust the contact area between the sloped surface of the lid body and the sloped surface of the receiving frame, thereby controlling the biting force. It will be easier.
- the lid main body is round, and each of the gap portions is a boundary portion between the upper inclined surface and the lower inclined surface of each of the lid body and the receiving frame. It can be formed by a mid-gradient surface.
- the middle slope surface of the receiving frame is formed as a continuous curved surface connecting the upper slope surface and the lower slope surface of the receiving frame, and the middle slope surface of the receiving frame has a convex shape inward of the receiving frame.
- a concave receiving surface concave curved surface portion above the receiving frame convex curved surface portion can be provided.
- the middle sloped surface of the lid body is formed into a continuous curved shape connecting the upper sloped surface and the lower sloped surface of the lid body, and the middle sloped surface of the lid body is formed on the convex curved surface portion of the receiving frame. It is possible to provide a concave lid concave curved surface portion following the concave lid surface and a convex lid convex curved surface portion following the concave concave curved surface portion of the receiving frame.
- the inclination of the lower inclined surface of each of the lid main body and the receiving frame is set to 3 ° -10. It is preferable that the gradient of the upper inclined plane is 7 ° to 20 °. According to this preferred aspect, it is possible to precisely control the biting force of the lid main body into the receiving frame, and to achieve a high degree of compatibility between prevention of excessive biting and suppression of oblique biting and slippage of the lid main body into the receiving frame. .
- FIG. 1 is an exploded perspective view of a lid for an underground structure according to one embodiment of the present invention.
- FIG. 2 is a partial longitudinal sectional view showing an essential part of a lid for an underground structure in a state where a lid body is floated from a receiving frame;
- FIG. 3 A vertical partial cross-sectional view showing a main part for an underground structure in a state where a lid body is fitted and supported by a receiving frame.
- FIG. 4A is a cross-sectional view showing a state in which the lid main body is almost superimposed on the receiving frame, for illustrating a closing operation of the lid for the underground structure shown in FIG. 1, and
- FIG. 4B is a partial sectional view taken along line 1VB-1VB in FIG. 4A.
- the lid for an underground structure is composed of a round lid body 10 and a receiving frame 20 that fits and supports the lid body 10, and the lid body 10 is formed by a hinge hardware (not shown). It is connected to the receiving frame 20 so that it can be opened and closed.
- a slope 11 is formed on the outer periphery of the lid body 10, while a slope 21 for fittingly supporting the slope 11 of the lid body 10 is provided on the inner periphery of the cylindrical portion 22 of the receiving frame 20. Is formed. Further, a flange portion 23 is provided on an outer periphery of a lower portion of the cylindrical portion 22 of the receiving frame 20.
- the lid for the underground structure is attached, for example, to the upper end of the upper mass of the manhole, and is installed so that the upper end surface is flush with the ground surface.
- FIG. 2 shows a state where the lid body is lifted from the receiving frame, and as shown in FIG. 21 is a tapered upper inclined surface 21a that decreases in diameter downward, a tapered lower inclined surface 21b that also decreases in diameter downward, and a continuous connecting the upper inclined surface 21a and the lower inclined surface 21b. And a curved middle slope 21c.
- the middle fitting portion 21 is formed with a receiving frame convex curved surface portion 21c-1 protruding inward of the receiving frame 20, and a concave receiving frame is formed above the receiving frame convex curved surface portion 21c-1.
- the concave curved surface portion 21c-2 is formed continuously.
- the upper sloped surface 21a is continuous above the concave curved surface portion 21c-2, and the lower sloped surface 21b is continuous below the convex curved surface portion 21c-1.
- the inclined surface 21 of the receiving frame 20 forms an S-shaped curved peripheral surface as a whole, and forms a substantially inverted truncated conical inner peripheral surface of the receiving frame 20.
- the inclined surface 11 of the lid body 10 has a tapered upper inclined surface lla whose diameter decreases downward, a tapered lower inclined surface l ib also reduced in diameter downward, and an upper surface Gradient surface] and a continuous curved middle gradient surface 11c connecting the lower gradient surface l ib.
- a concave lid HA curved surface portion lie-1 following the receiving frame convex curved surface portion 21c-1, and the receiving frame concave curved surface portion is provided above the lid concave curved surface portion 11c-11.
- the convex lid convex curved surface portion 11c-12 following the shape of 21c-2 is formed continuously.
- the upper inclined surface 11a continues above the convex convex curved portion 11c-12, and the lower inclined surface Ub continues below the concave concave curved portion 11c1].
- the inclined surface 11 of the lid main body 10 forms an S-shaped curved peripheral surface as a whole, and also constitutes a substantially inverted truncated conical outer peripheral surface of the lid main body 10.
- the inclination angles of the upper inclined surface 1 la and the lower inclined surface 1 lb of the lid body 10 are the same as the inclination angles of the upper inclined surface 21a and the lower inclined surface 21b of the receiving frame 20, respectively, because they are fitted with the receiving frame 20.
- the outer peripheral surface of the lid body 10 has a complementary shape to the inner peripheral surface of the receiving frame 20.
- the slope of the lower slope llb, 21b is steeper than the slope of the upper slope lla, 21a.
- the slope angle of the lower slope surface l lb, 21b is 3 °-10 °, for example 6 °
- the slope angle of the upper slope surface l la, 21a is 7 °-20 °, for example, 10 °.
- the slope of the lower slope surface of each of the lid body 10 and the receiving frame 20 is set to be 4 ° (generally 1 ° to 10 °) steeper than the gradient of the upper slope surface, so that the lid 20
- the biting force of the main body 10 can be precisely controlled, and as will be described in detail later, the cover main body 10 It is possible to achieve a high level of both prevention of excessive biting and suppression of oblique biting and slippage of the lid body 10 with respect to the receiving frame 20.
- FIG. 3 shows a closed state in which the lid body is fitted and supported by the receiving frame.
- the upper inclined surface 11a and the lower inclined surface l ib of the lid main body 10 face the upper inclined surface 21a and the lower inclined surface 21b of the receiving frame 20, respectively. It is fitted and supported at two places, l la 21a and lower slope l lb 21b.
- the middle slope surface 1lc of the lid body 10 is not aligned with the middle slope surface 21c of the receiving frame 20, but a gap is formed therebetween. This gap can be formed, for example, by making the upper sloped surface 21a of the receiving frame 20 longer than the upper sloped surface 11a of the lid body 10.
- Table 1 shows the results of analyzing the displacement of the lid when a load was applied to the peripheral portion of the lid main body fitted and supported on the receiving frame under the following conditions, while changing the angle of the slope surface.
- Loading area 200 X 200mm
- Comparative Example 1 in which the slope of the lower slope is the same as the slope of the upper slope, and the lower part It can be seen that the displacement of the lid body is smaller than in Comparative Example 2 in which the gradient of the gradient surface is gentler than the gradient of the gradient surface. That is, according to the present invention, even if a centralized load is applied to the peripheral portion of the lid body, excessive intrusion of the lid body is prevented, and It was confirmed that diagonal penetration and slippage of the main body could be reduced.
- FIG. 4A shows a cross section of the state in which the lid body is horizontally turned for closing and the lid is almost overlapped with the receiving frame after the lid is opened
- Fig. 4B shows the slope surface of the lid body and the inclined surface of the receiving frame in this state.
- FIG. 4B is a cross-sectional view taken along line IVB-IVB of FIG.
- the lid convex curved surface portion 1lc-12 is guided by the receiving frame convex curved surface portion 2] c-1.
- the front part (right end in FIG. 4A) of the lid body 10 rises so as to rise, and finally the lid body 10 completely fits in the receiving frame 20.
- the lid main body 10 moves while the lid convex curved surface portion 11c-2 is guided by the receiving frame convex curved surface portion 21c-1.
- the cover body 10 can be smoothly fitted into the receiving frame 20 by simply pushing the cover 10.
- the lid body is fitted and supported on the receiving frame by the upper and lower gradient surfaces with different gradients, the overall biting force of the lid body into the receiving frame can be controlled, and the lid body is excessively attached to the receiving frame. Can be prevented from digging into.
- the slope of the lower slope is steeper than the slope of the upper slope, the rigidity is high in the receiving frame and the amount of deformation due to external force is small, and the lower slope is mainly eclipsed and jammed. As a result, it is possible to prevent the lid main body from obliquely penetrating or slipping into the receiving frame.
- the lid body Since the lid body is fitted and supported by the receiving frame at two places, the upper slope surface and the lower slope surface, the lid body can be securely fixed to the receiving frame, and swinging and rattling of the lid body can be prevented.
- the receiving frame convex curved surface part which becomes convex toward the inside of the receiving frame is formed on the middle slope surface of the receiving frame, and the convex lid convex curved surface portion is formed on the middle slope surface of the lid body,
- the convex curved surface of the lid moves while being guided by the convex curved surface of the receiving frame, and the lid main body can be smoothly placed in the receiving frame simply by dragging the lid main body with a crowbar or pushing the lid main body backward.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/556,130 US7648307B2 (en) | 2003-05-13 | 2004-05-12 | Underground structure cover |
DE602004022799T DE602004022799D1 (de) | 2003-05-13 | 2004-05-12 | Deckel für unterirdische konstruktion |
EP04732426A EP1624115B1 (en) | 2003-05-13 | 2004-05-12 | Lid for underground structure |
JP2005506180A JP4817231B2 (ja) | 2003-05-13 | 2004-05-12 | 地下構造物用蓋 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003-134928 | 2003-05-13 | ||
JP2003134928 | 2003-05-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2004101900A1 WO2004101900A1 (ja) | 2004-11-25 |
WO2004101900A9 true WO2004101900A9 (ja) | 2005-02-03 |
Family
ID=33447161
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/006388 WO2004101900A1 (ja) | 2003-05-13 | 2004-05-12 | 地下構造物用蓋 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7648307B2 (ja) |
EP (1) | EP1624115B1 (ja) |
JP (2) | JP4817231B2 (ja) |
CN (1) | CN100447351C (ja) |
DE (1) | DE602004022799D1 (ja) |
WO (1) | WO2004101900A1 (ja) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090211170A1 (en) * | 2008-02-26 | 2009-08-27 | Burlando Albert A | Inground marker for a subterranean object, such as a septic tank |
JP5161148B2 (ja) * | 2009-05-12 | 2013-03-13 | 株式会社トミス | 鉄蓋受け枠構造 |
TWI620853B (zh) * | 2013-02-18 | 2018-04-11 | Hinode Ltd | 地下構造物用蓋 |
JP6324374B2 (ja) * | 2013-04-22 | 2018-05-16 | 日之出水道機器株式会社 | 地下構造物用蓋 |
KR101377009B1 (ko) * | 2013-06-04 | 2014-03-25 | 한병숙 | 높이 및 경사 조절이 가능한 맨홀 뚜껑 |
KR101350836B1 (ko) * | 2013-06-05 | 2014-01-14 | 주식회사 정원주철 | 다면 측면접촉각을 갖는 방수형 맨홀뚜껑 |
KR101407923B1 (ko) * | 2013-11-28 | 2014-06-19 | 주식회사 정원주철 | 이중 경사면을 갖는 소음방지용 맨홀뚜껑 |
US9551141B2 (en) * | 2015-05-11 | 2017-01-24 | Justin David Clinton | Drain body seal and protection system and method |
JP6877740B2 (ja) * | 2017-04-28 | 2021-05-26 | アクアインテック株式会社 | 地下構造物用蓋受枠セット |
US20220279664A1 (en) * | 2019-12-12 | 2022-09-01 | Mitsubishi Electric Corporation | Electronic device housing |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1600761A (en) * | 1925-04-01 | 1926-09-21 | Leo G Haase | Meter box |
US2109287A (en) * | 1934-11-09 | 1938-02-22 | Elkington Vivian | Manhole cover and frame |
US2363567A (en) * | 1943-06-12 | 1944-11-28 | Henry W Blakeman | Cover plate |
GB902650A (en) * | 1960-08-22 | 1962-08-09 | Broads Mfg Company Ltd | Improvements in manhole or like covers and frames |
AT277090B (de) * | 1968-04-11 | 1969-12-10 | Hawle & Co Kg Flanschen Und Ar | Straßenkappe, insbesondere für Absperrorgane erdverlegter Wasserleitungen od.dgl. |
JPS5298962U (ja) * | 1976-01-24 | 1977-07-26 | ||
JPS607414Y2 (ja) * | 1976-06-30 | 1985-03-12 | 日昭興産株式会社 | 蓋の防水構造 |
JPS5372357A (en) | 1976-12-09 | 1978-06-27 | Hinode Suidou Kiki Kk | Circular manhole |
JPS5550198Y2 (ja) * | 1977-12-20 | 1980-11-21 | ||
JPS5920439Y2 (ja) * | 1981-06-17 | 1984-06-14 | 栄寿産業株式会社 | マンホ−ル装置 |
JPS6019162Y2 (ja) * | 1982-01-19 | 1985-06-10 | 日豊金属工業株式会社 | マンホ−ル |
JPS6019162A (ja) | 1983-07-13 | 1985-01-31 | Canon Inc | 表示装置 |
FR2603631B1 (fr) * | 1986-09-05 | 1989-06-02 | Pont A Mousson | Garniture d'etancheite pour regard de chaussee |
CH677379A5 (ja) * | 1987-11-26 | 1991-05-15 | Von Roll Ag | |
JP2977916B2 (ja) * | 1991-02-05 | 1999-11-15 | 旭テック株式会社 | マンホールの受枠 |
CN2250978Y (zh) * | 1996-06-20 | 1997-04-02 | 焦作市自来水公司安装经营公司 | 井盖上有检视孔的窨井座、盖 |
DE20004987U1 (de) * | 2000-03-17 | 2000-05-25 | Buderus Guss Gmbh | Schachtabdeckung |
CN2470407Y (zh) * | 2001-04-13 | 2002-01-09 | 王绍峰 | 塑胶邮电井盖 |
JP3886037B2 (ja) * | 2002-02-14 | 2007-02-28 | 株式会社ライセンス&プロパティコントロール | 地下構造物用丸型蓋 |
-
2004
- 2004-05-12 WO PCT/JP2004/006388 patent/WO2004101900A1/ja active Application Filing
- 2004-05-12 EP EP04732426A patent/EP1624115B1/en not_active Expired - Fee Related
- 2004-05-12 JP JP2005506180A patent/JP4817231B2/ja not_active Expired - Lifetime
- 2004-05-12 DE DE602004022799T patent/DE602004022799D1/de not_active Expired - Lifetime
- 2004-05-12 CN CNB2004800129483A patent/CN100447351C/zh not_active Expired - Fee Related
- 2004-05-12 US US10/556,130 patent/US7648307B2/en not_active Expired - Fee Related
-
2008
- 2008-10-06 JP JP2008259874A patent/JP5234616B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US7648307B2 (en) | 2010-01-19 |
EP1624115A1 (en) | 2006-02-08 |
EP1624115A4 (en) | 2008-03-05 |
DE602004022799D1 (de) | 2009-10-08 |
CN1788123A (zh) | 2006-06-14 |
US20070062125A1 (en) | 2007-03-22 |
WO2004101900A1 (ja) | 2004-11-25 |
EP1624115B1 (en) | 2009-08-26 |
JP4817231B2 (ja) | 2011-11-16 |
JP2009030436A (ja) | 2009-02-12 |
JP5234616B2 (ja) | 2013-07-10 |
JPWO2004101900A1 (ja) | 2006-07-13 |
CN100447351C (zh) | 2008-12-31 |
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