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Title:
PNEUMATIC FEEDING DEVICE FOR CABLE
Document Type and Number:
Japanese Patent JPH05188224
Kind Code:
A
Abstract:
PURPOSE:To make the pneumatic transfer of a cable smooth by preventing electrification of an optical fiber and also preventing sticking of dusts by provid ing an ionizer which prevents electrification of the optical fiber at an inserting edge side of the optical fiber in a pneumatic feeding tube. CONSTITUTION:An optical fiber unit 2 is fed from a feeding bobbin 1 and is delivered to a pneumatic feeding head 5 by a drive wheel 4. The optical fiber 2 is fed from the inlet side of the pneumatic feeding tube 6 to the outlet side thereof by a flow of high pressure air fed to the pneumatic feeding head 5. Here the ionizer 3 is provided between the feeding bobbin 1 and the drive wheel 4, so the optical fiber unit 2 passed through the ionizer 3 is deelectrified or is prevented from being electrified. Hence, since the optical fiber unit 2 fed into the pneumatic feeding tube 6 via the pneumatic feeding head 5 is not stuck with dusts, etc. due to static electricity, a friction force between the optical fiber 2 and the inside surface of the pneumatic feeding tube 6 is small and, then the transfer by a pneumatic pressure becomes smooth.

Inventors:
YAMAZAKI SHOJIRO
SATO TOMOJI
ODAKA YOSHIFUMI
Application Number:
JP402892A
Publication Date:
July 30, 1993
Filing Date:
January 13, 1992
Export Citation:
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Assignee:
HITACHI CABLE
International Classes:
G02B6/46; G02B6/44; H02G1/08; H05F3/04; (IPC1-7): G02B6/00; G02B6/44; H02G1/08; H05F3/04
Attorney, Agent or Firm:
絹谷 信雄



 
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