Displayed on the second floor

Skills of kiji(wood base)-shi artisans

The kiji(wood base) forming of marumono items and the kiji(wood base) forming of kakumono items are performed by different kiji(wood base)-shi artisans. The kiji(wood base)-shi artisans of marumono items forms the shapes of round shaped containers such as bowls, plates and pots by spinning the wood blocks on a wheel machine called rokuro while shaving the wood blocks with a kan-na peeler.
The kiji(wood base)-shi artisans of kakumono items cut the woods in boards and assemble the wood boards by using lacquer as the adhesive to form layered boxes, tray tables and trays.
How to divide a wood block
Tategi-dori and Yokogi-dori
The kiji(wood base)-shi artisans divide wood blocks by the methods called tategi-dori and yokogi-dori.
In the tategi-dori method, a block of log is cut horizontally in disk shape so that the wood pattern appears vertically. The items made by the tategi-dori method do not deform easily. However, since the center part of the log cannot be used, the sizes of the items that can be cut out are limited.
In the yokogi-dori method, a block of log is cut vertically in thick boards. This method is suited for making large plates and pots.
Kiji(wood base) forming process of marumono item
The kiji(wood base)-shi artisans first make their original kan-na peelers to shave the wood blocks into particular sizes and shapes. The kan-na peelers are made by pounding on heated steal with a hammer. There are various types of kan-na peelers such as kata (one-side) kan-na, maru (round) kan-na, kakugiri (square) kan-na, shaka kan-na, etc.
A wood block is spun on a wheel called rokuro while being shaved with a kan-na peeler. According to the type of bowl to be made, the wood block is shaved very thin or relatively thick.
Forming a shape using rokuro wheel
Kiji(wood base) forming process of kakumono item
For kakumono items, ginko, Japanese judas, magnolia and plyboards of linden are mainly used. The woods are processed by various machines to adjust their thickness, to process the joining parts, etc. Different machines are used according to whether the wood block needs to be cut, shaved or bent according to the item to be made. The boards are adhered with the kokuso lacquer adhesive material made by mixing raw lacquer, adhesive made of rice and wood powder to be assembled.
A wood block is cut into a bottom board, side boards, etc. according to the size of the item to be made, their adhering surfaces are processed and the kokuso lacquer adhesive material is applied to the adhering surfaces with a spatula to be assembled.
The assembled layers are stacked and the corners are shaved to be round.
The tatsugi (corner wood pieces) is shaved with a chisel so as to match the roundness of outside.