US Patent 7418875 Tension measuring method and apparatus for chain

Patent 7418875 was granted and assigned to Tsubakimoto Chain on September, 2008 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

Tsubakimoto Chain

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

74188750

Patent Inventor Names

Sachihiko Maeda0

Kohji Kohno0

Date of Patent

September 2, 2008

Patent Application Number

115015610

Date Filed

August 9, 2006

Patent Primary Examiner

‌

Edward Lefkowitz

Patent abstract

A tension measuring apparatus and method for a chain by which tension applied to the chain is correctly and reproducibly measured is disclosed and claimed. A tension measuring method for a chain (10) comprising a pair of right and left inner plates (11), bushes (12) press-fit between the inner plates (11), a pair of right and left outer plates (13) disposed on both outsides of the inner plates (11), connecting pins (14) loosely inserted into the bush (12) and press-fit between the outer plates (13), and connected to each other characterized in that a strain gauge is applied to a position having a relation of a ratio of 1 to 1 between tension applied to the chain and an output of the strain gauge (16).