Uroko-monyo
Triangle Scale Pattern| Uroko-monyo (Scale Pattern) The scale pattern, known as the "Alternating Pattern," is formed by arranging triangles in an alternating fashion. The name derives from its resemblance to the scales of fish and snakes. This pattern evokes images of snakes and butterflies, symbolizing the act of shedding old layers, casting off misfortune, and undergoing renewal. In the Edo period, it was regarded as a protective design used for warding off misfortune. |
| Traditional Japanese Techniques |
| Brass Sheet Cutting | Scale drawing | Scribing Replication Processing |
Forming and Polishing |
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| Cut a brass sheet (0.4–0.5 mm thick) to match the dimensions of the scabbard. | Sketch four rows of scales based on the length and width of the scabbard. Adjust the distortion in the width and spacing of the scales, which occurs due to the gradual tapering from the base width to the tip width. | Replicate the scale pattern onto the brass sheet.
Drill a hole in the center of each triangle and insert a triangular file, then begin filing along the created pattern.
Carefully shape the straight edges of the triangles, ensuring precision where there is little space to insert the file.
Work while maintaining awareness of the gradually decreasing scale dimensions. |
Once filing is complete, smooth the hole’s side surfaces using a file or other tools.
Fit the finished brass sheet onto the wooden scabbard, form the curves, and polish the surface.
Once polishing is complete, prepare for plating.
Urokomon Hyogokusari Tachi Here |
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