A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
To provide a manhole lid lock device that can support operation tools with a plurality of different shapes at low costs.SOLUTION: A lock device 1 comprises: a fixed outer tube 2 that has a vertical axis hole 21 and is fixed to a lid body; a main shaft 3 that is fitted into the vertical axis hole 21 rotatably; a latch 4 that engages/disengages with/from a receiving section on the manhole frame body side together with the rotation of the main shaft 3; and an exchange axis member that can be attached/detached. The upper end of the main shaft 3 has a head 32 with a square hole 31 for engaging/disengaging with/from the exchange axis member. A lower section of the exchange axis member has a square axis section that engages with the square hole 31 of the main shaft 3, and an upper section of the exchange axis member has a different shape square hole that has a different shape from that of the square hole 31 of the main shaft 3. If a plurality of exchange axis members with different shapes are produced, it is possible to operate the rotation of the main shaft 3 using operation tools with a plurality of different shapes by exchanging these exchange axis members.SELECTED DRAWING: Figure 1
【課題】複数の異形状の操作工具に安価に対応できるマンホール蓋用ロック装置を提供する。【解決手段】ロック装置１は、垂直軸孔２１を有し蓋体に固着される固定外筒２と、垂直軸孔２１に回転可能に嵌め込まれる主軸３と、主軸３の回転に連動してマンホール枠体側の受部と係脱するラッチ４と、着脱自在の交換軸部材とを具備する。主軸３は、交換軸部材を係脱させる角穴３１付きの頭部３２を上端に有する。交換軸部材は、主軸３の角穴３１に係合する角軸部を下部に有すると共に、主軸３の角穴３１とは形状の異なる異形角穴を上部に有する。形状の異なる複数の交換軸部材を製作すれば、交換軸部材を交換することにより、複数の形状の異なる操作工具で主軸３を回転操作可能である。【選択図】図１
To provide a manhole lid lock device that can support operation tools with a plurality of different shapes at low costs.SOLUTION: A lock device 1 comprises: a fixed outer tube 2 that has a vertical axis hole 21 and is fixed to a lid body; a main shaft 3 that is fitted into the vertical axis hole 21 rotatably; a latch 4 that engages/disengages with/from a receiving section on the manhole frame body side together with the rotation of the main shaft 3; and an exchange axis member that can be attached/detached. The upper end of the main shaft 3 has a head 32 with a square hole 31 for engaging/disengaging with/from the exchange axis member. A lower section of the exchange axis member has a square axis section that engages with the square hole 31 of the main shaft 3, and an upper section of the exchange axis member has a different shape square hole that has a different shape from that of the square hole 31 of the main shaft 3. If a plurality of exchange axis members with different shapes are produced, it is possible to operate the rotation of the main shaft 3 using operation tools with a plurality of different shapes by exchanging these exchange axis members.SELECTED DRAWING: Figure 1
【課題】複数の異形状の操作工具に安価に対応できるマンホール蓋用ロック装置を提供する。【解決手段】ロック装置１は、垂直軸孔２１を有し蓋体に固着される固定外筒２と、垂直軸孔２１に回転可能に嵌め込まれる主軸３と、主軸３の回転に連動してマンホール枠体側の受部と係脱するラッチ４と、着脱自在の交換軸部材とを具備する。主軸３は、交換軸部材を係脱させる角穴３１付きの頭部３２を上端に有する。交換軸部材は、主軸３の角穴３１に係合する角軸部を下部に有すると共に、主軸３の角穴３１とは形状の異なる異形角穴を上部に有する。形状の異なる複数の交換軸部材を製作すれば、交換軸部材を交換することにより、複数の形状の異なる操作工具で主軸３を回転操作可能である。【選択図】図１
MANHOLE LID LOCK DEVICE
マンホール蓋用ロック装置
KOYAMA OSAMU (author)
2020-12-10
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
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Gründungen