LOCKING DEVICE FOR COVER OF ENTRANCE FOR COMMON CONDUIT, ETC
PROBLEM TO BE SOLVED: To provide a locking device for a cover of an entrance for a common conduit, etc., which is not brought to the state, in which the locking device cannot be released by the intrusion of a foreign matter, and a released state can be confirmed at a glance and which is also release...
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Main Author | |
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Format | Patent |
Language | English |
Published |
27.07.1999
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Edition | 6 |
Subjects | |
Online Access | Get full text |
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Abstract | PROBLEM TO BE SOLVED: To provide a locking device for a cover of an entrance for a common conduit, etc., which is not brought to the state, in which the locking device cannot be released by the intrusion of a foreign matter, and a released state can be confirmed at a glance and which is also released and operated simply. SOLUTION: The locking device for the cover of the entrance for the common conduit, etc., has a fixed cylindrical body 4 fixed onto a base 5 installed to the cover 1, an internal cylinder 6, which is inserted into the fixed cylindrical body 4 and in which a male screw section is mounted at an upper end, groove sections 9 are formed to an intermediate section and a shaft section 10 is set up at a lower end, a rear cover 13 fastened at the lower end of the fixed cylindrical body 4 for bearing downward load by the internal cylinder 6 at the time of locking and setscrews 14 fitted into the groove sections 9 for limiting the movement of the internal cylinders 6 and fixed onto the fixed cylindrical body 4. The locking device consists of an O ring 12 fitted at the lower end of the male screw section, a latch 11 fastened at the lower end section of the shaft section 10 and engaged with the backing plate section 3 of a fixed wall 2 and a handle, by which a key section is inserted into a keyhole 8 formed to the top face of the male screw section and which is used for rotating and shifting the internal cylinder 6. |
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AbstractList | PROBLEM TO BE SOLVED: To provide a locking device for a cover of an entrance for a common conduit, etc., which is not brought to the state, in which the locking device cannot be released by the intrusion of a foreign matter, and a released state can be confirmed at a glance and which is also released and operated simply. SOLUTION: The locking device for the cover of the entrance for the common conduit, etc., has a fixed cylindrical body 4 fixed onto a base 5 installed to the cover 1, an internal cylinder 6, which is inserted into the fixed cylindrical body 4 and in which a male screw section is mounted at an upper end, groove sections 9 are formed to an intermediate section and a shaft section 10 is set up at a lower end, a rear cover 13 fastened at the lower end of the fixed cylindrical body 4 for bearing downward load by the internal cylinder 6 at the time of locking and setscrews 14 fitted into the groove sections 9 for limiting the movement of the internal cylinders 6 and fixed onto the fixed cylindrical body 4. The locking device consists of an O ring 12 fitted at the lower end of the male screw section, a latch 11 fastened at the lower end section of the shaft section 10 and engaged with the backing plate section 3 of a fixed wall 2 and a handle, by which a key section is inserted into a keyhole 8 formed to the top face of the male screw section and which is used for rotating and shifting the internal cylinder 6. |
Author | MIZUGUCHI KEIICHI |
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Notes | Application Number: JP19980020240 |
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RelatedCompanies | TAKIGEN MFG CO LTD |
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Snippet | PROBLEM TO BE SOLVED: To provide a locking device for a cover of an entrance for a common conduit, etc., which is not brought to the state, in which the... |
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SubjectTerms | EMBANKMENTS EXCAVATIONS FIXED CONSTRUCTIONS FOUNDATIONS HYDRAULIC ENGINEERING SOIL SHIFTING UNDERGROUND OR UNDERWATER STRUCTURES |
Title | LOCKING DEVICE FOR COVER OF ENTRANCE FOR COMMON CONDUIT, ETC |
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