How are kozuka attached to kogatana?

[John C]

I imagine this is a simple question to those who know, however I have not been able to find an answer through researching threads.

 

Is it simply a friction fit (allowing for replacing the kogatana as it wears out) or were these glued in place?

 

John C.

[O koumori]

The kogatana 'tang' area is usually bent slightly to provide a friction fit. You can also wrap it using paper for a tight fit.

Dan K.

[Nobody]

Kogatana was glued with resin.

[Baka Gaijin]

To Echo Moriyama San

 

Resin

 

NMB Stalwart John A Stuart has a practical recipe for it somewhere on NMB.

 

Check out his many contributions:

 

 

 

 

[Brian]

Pine pitch resin usually. Allows for easy removal when necessary.

[Baka Gaijin]

To Echo Moriyama San and Brian

 

Resin

 

NMB Stalwart John A Stuart had the detailed recipe in one of his many informative posts.

 

https://www.militaria.co.za/nmb/profile/108-john-a-stuart/content/?type=forums_topic&change_section=1

[Brian]

Here was the article on John's page: http://www.johnstuart.biz/new_page_22.htm

[Baka Gaijin]

KUSUNE 薬練

 

Thank you Brian and Thank you John

[1kinko]

That’s basically how kozuka are made. Once the sides have been soldered together the carving begins- but any work on the outside will bend the outside shape unless it’s filled with pitch that gets rock hard. You can use steel inside but after the carving is complete you may find there was some compaction after all and you can’t get the steel out! So I fill the kozuka with liquid pitch and then insert a wooden kozuka and burn it out when I’m finished. Pitch holds very well.

[Stephen]

Unless you plan on making it permanent I'd go with  Dan K.

 

Put a slight wave in  it's tang .

 

I've changed Kozuka a few times.

Was happy I didn't have to deal with, the pitch.

[John C]

Thank you everyone. This is great information.

John C