Lit. "connecting beam."
1 Also *geyabari 下屋梁. A short beam which connected the top of the *geyabashira 下屋柱, a post at the outside of the lean-to roof *geya 下屋, or the eaves purlin *geyageta 下屋桁, to the side of the *jōyabashira 上屋柱, a post at the boundary between main building *jōya 上屋 and the lean-to roof. The beam linked the jōya and geya posts, and thus rendered the structure of the geya more stable. It sometimes supported a strut *tsuka 束 bearing the end of the main transverse beam *jōyabari 上屋梁.

Nagatomi 永富 House (Hyōgo)
2 In many districts, a beam that ran parallel to the ridge of the roof *ketayuki 桁行, supported by beams *hari 梁 that ran in a transverse direction *harima 梁間. The tsunagibari functioned as a support for the feet of roof struts koyazuka 小屋束, and provided longitudinal stability for the structure.
Nagatomi 永富 House (Hyōgo)
3 An intermediate transverse beam in the roof structure *koyagumi 小屋組 of large scale thatched roof vernacular houses *minka 民家, connecting the main transverse beam and the ridge of the roof. The tsunagibari helped to tie the roof structure together.
4 Slender transverse beams that joined the long struts supporting the roof ridge *shinzuka 真束 to the flanking parallel pairs of struts *toriizuka 鳥居束 in the rafter-structure *taruki kōzō 垂木構造 system of roof assembly.