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To make an initial opening holding device of an inspection port as compact as possible, and to enhance reliability of an operation.SOLUTION: An inspection port includes: an outer frame 3 in which an inspection opening 6 is partitioned by a surface side frame part inner part 12a; a lid body 4 supported by the outer frame 3; a lock mechanism 30 for locking/unlocking in a state where the lid body 4 is closed; and an initial opening holding device 40 for restricting an opening operation of the lid body 4 on the way. The initial opening holding device 40 includes: a fixing plate part 41 fixed to an erected wall part 21 of the lid body 4; an operation plate part 42 folded downward from an upper end part of the fixing plate part 41; a locking plate part 43 which is folded to the fixing plate part 41 from a lower end part of the operation plate part 42, and in a state where the inspection opening 6 is closed by the lid body 4, which is positioned in an upper region of the surface side frame part inner part 12a; and a lock releasing plate part 44 suspending from the locking plate part 43.SELECTED DRAWING: Figure 5
【課題】点検口の初期開き保持装置において、極力コンパクトにすると共に、作動の信頼性を高める。【解決手段】表面側フレーム部内方部12aが点検開口6を区画する外枠3、外枠3に支持される蓋体4、蓋体4を閉じた状態でロック、アンロックするロック機構30、蓋体4の開動作を途中で規制する初期開き保持装置40を備える。初期開き保持装置40は、蓋体4の起立壁部21に固定される固定板部41、固定板部41の上端部から下方に折り返される作動板部42、作動板部42の下端部から固定板部41に折り返され、点検開口6が蓋体4により閉じた状態のとき、表面側フレーム部内方部12aの上方領域に位置する係止板部43、係止板部43から垂下する係止解除板部44を備える。【選択図】 図5
To make an initial opening holding device of an inspection port as compact as possible, and to enhance reliability of an operation.SOLUTION: An inspection port includes: an outer frame 3 in which an inspection opening 6 is partitioned by a surface side frame part inner part 12a; a lid body 4 supported by the outer frame 3; a lock mechanism 30 for locking/unlocking in a state where the lid body 4 is closed; and an initial opening holding device 40 for restricting an opening operation of the lid body 4 on the way. The initial opening holding device 40 includes: a fixing plate part 41 fixed to an erected wall part 21 of the lid body 4; an operation plate part 42 folded downward from an upper end part of the fixing plate part 41; a locking plate part 43 which is folded to the fixing plate part 41 from a lower end part of the operation plate part 42, and in a state where the inspection opening 6 is closed by the lid body 4, which is positioned in an upper region of the surface side frame part inner part 12a; and a lock releasing plate part 44 suspending from the locking plate part 43.SELECTED DRAWING: Figure 5
【課題】点検口の初期開き保持装置において、極力コンパクトにすると共に、作動の信頼性を高める。【解決手段】表面側フレーム部内方部12aが点検開口6を区画する外枠3、外枠3に支持される蓋体4、蓋体4を閉じた状態でロック、アンロックするロック機構30、蓋体4の開動作を途中で規制する初期開き保持装置40を備える。初期開き保持装置40は、蓋体4の起立壁部21に固定される固定板部41、固定板部41の上端部から下方に折り返される作動板部42、作動板部42の下端部から固定板部41に折り返され、点検開口6が蓋体4により閉じた状態のとき、表面側フレーム部内方部12aの上方領域に位置する係止板部43、係止板部43から垂下する係止解除板部44を備える。【選択図】 図5
INSPECTION PORT
点検口
NAGATANI ARIHIRO (author)
2021-10-07
Patent
Electronic Resource
Japanese
IPC:
E04F
FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
,
Ausbau von Bauwerken, z.B. Treppen, Fußböden