CHUCK FOR COVER FASTENING DEVICE
PROBLEM TO BE SOLVED: To smoothly enter a container cover into a storage space and securely hold the container cover in the storage space by improving a chuck of a cover fastening device for entering the container cover into the cover storage space with its lower face open formed on a chuck main bod...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | PROBLEM TO BE SOLVED: To smoothly enter a container cover into a storage space and securely hold the container cover in the storage space by improving a chuck of a cover fastening device for entering the container cover into the cover storage space with its lower face open formed on a chuck main body. SOLUTION: The surface of a press member 26 protruded partially into a cover storage space and engaged with a container cover is formed into a rough face having the bending central average roughness Ra in the range of 0.50-0.90 μm, particularly in the range of approximately 0.60-0.70 μm. |
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