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Title:
METHOD AND EQUIPMENT FOR MEASURING FLEXURAL RIGIDITY OF ROD-LIKE MATERIAL
Document Type and Number:
Japanese Patent JP3876049
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To provide a method and an equipment for measuring the flexural rigidity of a rod-like material accurately in which the flexural rigidity of a rubber hose can be measured quantitatively at a low temperature and at the application of pressure.
SOLUTION: The flexural rigidity measuring equipment 10 comprises a semicircular, planar bending mender 12 having a radius of curvature R secured vertically and removably onto a supporting table 11 by means of screws 13. The planar bending mandrel 12 is fixed, on the side face thereof, with the supporting arm 15 of a pressing means provided with a detector turning, at a constant speed, along the side face of the planar bending mandrel 12. The supporting arm 15 has a base end part 15a fixed to a turning shaft 16 located in the center O of the bonding mandrel 12 and a forward end 15b fixed, through a bracket 17, with rotatable guide rollers 18a, 18b provided with a guide groove 30 covering the substantially semicircular part of a rod-like measured material W, and flexure detectors 19a, 19b, e.g. load cells, for measuring the flexural rigidity (normal force).


Inventors:
Nakahara
Application Number:
JP18342397A
Publication Date:
January 31, 2007
Filing Date:
July 09, 1997
Export Citation:
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Assignee:
THE YOKOHAMA RUBBER CO.,LTD.
International Classes:
G01L5/00; G01N3/20; G01M5/00; (IPC1-7): G01N3/20; G01L5/00; G01M5/00
Domestic Patent References:
JP55172846U
JP61172030A
JP63054051U
JP10267813A
JP6052740A
Attorney, Agent or Firm:
Shinichi Ogawa
Takashi Noguchi
Kazuhiko Saishita