A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
COVER RECEIVING FRAME SET FOR UNDERGROUND STRUCTURE
PROBLEM TO BE SOLVED: To provide a cover receiving frame set for an underground structure devised for restraining slipping-up of a cover body, without requiring high dimensional accuracy.SOLUTION: A receiving frame 3 comprises an abutting object part 312 under a frame side taper surface 311, by providing the frame side taper surface 311 inclined to the outside by turning upward, in an inner peripheral surface part 31, in which a manhole cover 2 is inclined to the outside for turning upward, and comprises an abutting part 222 under a cover side taper surface 221 by providing the cover side taper surface 221 fitted to the frame side taper surface 311 in an outer peripheral surface part 22, and the abutting part 222 is opposed to the abutting object part 312 by opening a clearance C1 in the horizontal direction of the manhole cover 2 in a state where the manhole cover 2 supported by the receiving frame 3 is horizontal to an upper end surface of the receiving frame 3, on the one hand, regulates the manhole cover 2 in inclining more than a constant angle by abutting on the abutting object part 312 when the manhole cover 2 inclines up to the constant angle to the receiving frame 3.SELECTED DRAWING: Figure 2
【課題】高い寸法精度が要求されることなく、蓋体のずり上がりを抑える工夫がなされた地下構造物用蓋受枠セットを提供する。【解決手段】受枠３は、上方に向かうにつれて外側に傾斜した枠側テーパ面３１１が内周面部３１に設けられ、枠側テーパ面３１１よりも下方に被当接部３１２を有するものであり、マンホール蓋２は、上方に向かうにつれて外側に傾斜し、枠側テーパ面３１１に嵌合する蓋側テーパ面２２１が外周面部２２に設けられ、蓋側テーパ面２２１よりも下方に当接部２２２を有するものであり、当接部２２２は、受枠３に支持されたマンホール蓋２が受枠３の上端面に対して水平である状態ではマンホール蓋２の水平方向に隙間Ｃ１をあけて被当接部３１２に対向する一方、受枠３に対してマンホール蓋２が一定角度まで傾くと、被当接部３１２に当接しマンホール蓋２が一定角度よりも傾くことを規制するものである。【選択図】図２
COVER RECEIVING FRAME SET FOR UNDERGROUND STRUCTURE
PROBLEM TO BE SOLVED: To provide a cover receiving frame set for an underground structure devised for restraining slipping-up of a cover body, without requiring high dimensional accuracy.SOLUTION: A receiving frame 3 comprises an abutting object part 312 under a frame side taper surface 311, by providing the frame side taper surface 311 inclined to the outside by turning upward, in an inner peripheral surface part 31, in which a manhole cover 2 is inclined to the outside for turning upward, and comprises an abutting part 222 under a cover side taper surface 221 by providing the cover side taper surface 221 fitted to the frame side taper surface 311 in an outer peripheral surface part 22, and the abutting part 222 is opposed to the abutting object part 312 by opening a clearance C1 in the horizontal direction of the manhole cover 2 in a state where the manhole cover 2 supported by the receiving frame 3 is horizontal to an upper end surface of the receiving frame 3, on the one hand, regulates the manhole cover 2 in inclining more than a constant angle by abutting on the abutting object part 312 when the manhole cover 2 inclines up to the constant angle to the receiving frame 3.SELECTED DRAWING: Figure 2
【課題】高い寸法精度が要求されることなく、蓋体のずり上がりを抑える工夫がなされた地下構造物用蓋受枠セットを提供する。【解決手段】受枠３は、上方に向かうにつれて外側に傾斜した枠側テーパ面３１１が内周面部３１に設けられ、枠側テーパ面３１１よりも下方に被当接部３１２を有するものであり、マンホール蓋２は、上方に向かうにつれて外側に傾斜し、枠側テーパ面３１１に嵌合する蓋側テーパ面２２１が外周面部２２に設けられ、蓋側テーパ面２２１よりも下方に当接部２２２を有するものであり、当接部２２２は、受枠３に支持されたマンホール蓋２が受枠３の上端面に対して水平である状態ではマンホール蓋２の水平方向に隙間Ｃ１をあけて被当接部３１２に対向する一方、受枠３に対してマンホール蓋２が一定角度まで傾くと、被当接部３１２に当接しマンホール蓋２が一定角度よりも傾くことを規制するものである。【選択図】図２
COVER RECEIVING FRAME SET FOR UNDERGROUND STRUCTURE
地下構造物用蓋受枠セット
ONAMI TOYOAKI (author)
2016-04-04
Patent
Electronic Resource
Japanese
IPC:
E02D
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