Halved rabbeted oblique scarf splices

(Isuka tsugi)

This decorative splicc is often used for finishing, particularly on exposed ceiling members; it has very few structural applications. Double-faced halved rabbeted oblique scarf splices, as shown in figure a), when applied as decorative design, arc dimensioned so that the length of the in clined plane is twice the size of the cross section. For stronger structural use, as for baiter posts for example, the length of the inclined planes is made equal to the size of the cross section. The double-faced halved rabbeted oblique scarf splice with key and the single-faced halved rabbeted oblique scarf splice, as shown in figure b) and c) respectively, arc often used in buildings where appearance, a factor of the length of the splicc, is not of utmost importance (for example, the "residents0 building of a temple). Hereafter described are three examples of halved rabbeted oblique scarf splices with three faces or more:

Scarf Splice

a) Double-faced halved rabbeted oblique scarf splice

(b) Double-faced halved rabbeted oblique scarf splice with key

Halved Joints

(1) Triplc-faced halved rabbeted oblique scarf splice with key

The key has no structural function. It is designed so that the splice cannot be easily pulled apart. As mentioned earlier, the appearance of these joints is a direct function of the length of the splice. However, the longer splices are also weaker. Consequently, the inclined faces of the joint arc made to be a maximum of two times the size of the cross section.

Keyhole space 23

Images Scarf Joint Post
a key.

(2) Miyajima splicc surfaces. Very sophisticated craftsmanship

Very similar to the previous splice. The is required to manufacture this joint, difference resides in the presence of a triple-faced cone at the end of the inclined

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Woodworking Tools and Installation Tips

Woodworking Tools and Installation Tips

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