JPH02106046U

JPH02106046U -

Info

Publication number: JPH02106046U
Application number: JP1196489U
Authority: JP
Priority date: 1989-02-02
Filing date: 1989-02-02
Publication date: 1990-08-23
Anticipated expiration: 2004-02-02
Also published as: JPH0743182Y2

Description

【図面の簡単な説明】第１図はこの考案の１実施例の縦断側面図、第
２図は第１図の部分拡大図、第３図は同実施例に
用いた受枠の底面図、第４図は同実施例の受枠の
アンカーボルト挿通孔の拡大図、第５図は同実施
例に用いた球面座金を示しａは平面図、ｂはａの
横断面図、第６図は異なる球面座金を用いた他の
例を示す部分拡大図、第７図は第６図における球
面座金を示し、ａは平面図、ｂはａの横断面図、
第８図は従来のマンホールの受枠取付構造を示す
縦断側面図である。２１……受枠、２２……高さ調節部材、２３…
…マンホール桝部、２４……アンカーボルト、３
０……アンカーボルト挿通孔、３１……固定部、
３２……凸球面座、３３……凹球面、３４……球
面座金、３５……組座金、３５ａ……上座金、３
５ｂ……下座金、４３……ボルト孔（長孔）、４
５……凹球面、４６……凸球面。[Brief Description of the Drawings] Fig. 1 is a longitudinal sectional side view of one embodiment of this invention, Fig. 2 is a partially enlarged view of Fig. 1, and Fig. 3 is a bottom view of the receiving frame used in the embodiment. Fig. 4 is an enlarged view of the anchor bolt insertion hole of the receiving frame of the same example, Fig. 5 shows the spherical washer used in the same example, a is a plan view, b is a cross-sectional view of a, and Fig. 6 is a different spherical surface. A partially enlarged view showing another example using a washer, FIG. 7 shows the spherical washer in FIG. 6, a is a plan view, b is a cross-sectional view of a,
FIG. 8 is a longitudinal sectional side view showing a conventional manhole receiving frame mounting structure. 21... Receiving frame, 22... Height adjustment member, 23...
... Manhole box, 24 ... Anchor bolt, 3
0...Anchor bolt insertion hole, 31...Fixing part,
32... Convex spherical washer, 33... Concave spherical surface, 34... Spherical washer, 35... Assembly washer, 35a... Upper washer, 3
5b...Lower washer, 43...Bolt hole (long hole), 4
5... Concave spherical surface, 46... Convex spherical surface.

Claims

【実用新案登録請求の範囲】 (1) マンホール鉄蓋の受枠をマンホール桝部上
面に高さ調節部材を介して所望の傾斜角度で支持
させ、前記受枠の固定部及び前記高さ調節部材を
貫通するアンカーボルトにより受枠を桝部に固定
してなるマンホールの受枠取付構造において、前
記受枠の前記アンカーボルト貫通部の上面と下面
の双方又は一方を凸又は凹球面座に形成すると共
に、その球面座に対応する当接面を有する球面座
金を当接させ、前記受枠の球面座を有しない前記
上面又は下面には前記アンカーボルトの挿通孔を
有し互いに凸球面と凹球面とで接触して組合わさ
れておりその組合わされたものの上面と下面との
なす角度が変更可能である組座金を当接させたこ
とを特徴とするマンホールの受枠取付構造。 (2) マンホール鉄蓋の受枠をマンホール桝部上
面に高さ調節部材を介して所望の傾斜角度で支持
させ、前記受枠の固定部及び前記高さ調節部材を
貫通するアンカーボルトにより受枠を桝部に固定
してなるマンホールの受枠取付構造において、前
記アンカーボルトの挿通孔を有し互いに凸球面と
凹球面とで接して組合わされておりその組合わさ
れたものの上面と下面とのなす角度が変更可能で
ある組座金を、前記受枠の固定部のアンカーボル
ト貫通部の上面と下面とに夫々当接させて設けた
ことを特徴とするマンホールの受枠取付構造。 (3) 請求項１又は２に記載のマンホールの受枠
取付構造において、前記受枠の固定部のアンカー
ボルトの貫通する貫通孔が、同一円周上に等間隔
で３個又は６個設けられ、夫々の形状が前記円周
の半径方向外方へ向つて両側へ夫々略３０度の角
度範囲で拡大形成された三角おむすび形のもので
あることを特徴とするマンホールの受枠取付構造
。 (4) 請求項１，２，３のいずれか一つに記載の
マンホール受枠取付構造において、用いられてい
る前記組座金の片方の座金及び前記球面座金のボ
ルト孔が、その座金の球面の中心点を通り球面の
反対側の平面に直角な球面中心線に対し片寄つた
位置に中心線の位置する長孔に形成され、座金の
外形がその外形の中心と前記長孔の中心と略一致
するように決められていることを特徴とするマン
ホール受枠取付構造。[Claims for Utility Model Registration] (1) A receiving frame for a manhole iron cover is supported at a desired angle of inclination on the upper surface of the manhole channel via a height adjusting member, and the fixing portion of the receiving frame and the height adjusting member are penetrated. In a manhole receiving frame mounting structure in which a receiving frame is fixed to a concave part by an anchor bolt, both or one of the upper surface and the lower surface of the anchor bolt penetrating part of the receiving frame is formed into a convex or concave spherical seat, and the spherical seat is formed. A spherical washer having a contact surface corresponding to the spherical seat is brought into contact with the receiving frame, and the upper surface or lower surface of the receiving frame not having the spherical seat has an insertion hole for the anchor bolt, and the convex spherical surface and the concave spherical surface are in contact with each other and assembled. A manhole receiving frame mounting structure characterized in that assembled washers are brought into contact so that the angle between the upper and lower surfaces of the assembled parts can be changed. (2) Support the receiving frame of the manhole iron cover at a desired inclination angle on the upper surface of the manhole conduit via a height adjustment member, and attach the receiving frame to the conduit using an anchor bolt passing through the fixing part of the receiving frame and the height adjusting member. In the manhole receiving frame mounting structure, which has an insertion hole for the anchor bolt and is combined with a convex spherical surface and a concave spherical surface in contact with each other, the angle formed between the upper surface and the lower surface of the combined object can be changed. A manhole receiving frame mounting structure, characterized in that assembled washers are provided in contact with the upper and lower surfaces of the anchor bolt penetrating portion of the fixing portion of the receiving frame, respectively. (3) In the manhole receiving frame mounting structure according to claim 1 or 2, three or six through holes through which the anchor bolts of the fixing part of the receiving frame pass are provided at equal intervals on the same circumference, and each A manhole receiving frame mounting structure, characterized in that the shape is a triangular rice ball shape that is expanded outward in the radial direction of the circumference to both sides in an angular range of approximately 30 degrees. (4) In the manhole receiving frame mounting structure according to any one of claims 1, 2, and 3, the bolt hole of one of the used assembled washers and the spherical washer is located at the center of the spherical surface of the washer. A long hole is formed whose center line is offset from a spherical center line that passes through a point and is perpendicular to the plane on the opposite side of the spherical surface, and the outer shape of the washer substantially coincides with the center of the outer shape and the center of the long hole. A manhole receiving frame mounting structure characterized by being determined as follows.