HOLDING STRUCTURE OF T BOLT IN RAILROAD CROSSING PAVEMENT PLATE FASTENER

Title:

HOLDING STRUCTURE OF T BOLT IN RAILROAD CROSSING PAVEMENT PLATE FASTENER

Document Type and Number:

Japanese Patent JP3857521

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To provide a holding structure for visually confirming that a T bolt is installed in an anchor, and preventing return rotation of the T bolt after installation.
SOLUTION: The anchor 34 embedded in a sleeper 10 has a dovetail groove 38, and a narrow opening 40 formed in an upper part of this dovetail groove 38. The T bolt 36 has a T-shaped hook-like base end part 48 formed in the dovetail groove 38. A looseness preventive metal fitting 54 has a journaling part 58 for forming a through hole 56 capable of inserting the T bolt 36, and a pair of rectangular locking pieces 60 and 60 extending in the axial direction of the through hole 56 in a width corresponding to an opposed surface interval of the narrow opening 40. When the T bolt 36 engages with the dovetail groove 38 of the anchor 34, the looseness preventive metal fitting 54 prevents the return rotation of the T bolt 36.

Inventors:

Suzuki Toyoto

Application Number:

JP2000382794A

Publication Date:

December 13, 2006

Filing Date:

December 15, 2000

Export Citation:

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