First Gate - First Gate

...When a masugata is placed inside the tiger's mouth, it is called an inner masugata, and this is the usual style, while outer masugata, which are placed on the outside, are rare. Two gates are opened into the masugata, and the first gate facing the outside is a Korean gate (multi-gate) style with a gabled roof supported by two square pillars, while the more important and sturdier inner gate is usually built in the yaguramon style with a hipped roof on a crossing tower. These two gates are always arranged at a right angle. ...

*Some of the terminology that refers to "Ichi no Mon" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…升形を虎口の内側に設けるのを内升形といい，これが通常の形式で，外側に設ける外升形は数が少ない。升形に二つの門を開き，外に面した一の門を2本の角柱で妻破風造の屋根を支える高麗門(多門)形式とし，より重要で堅固に造られる内側の二の門は，渡り櫓に入母屋造の屋根を載せる櫓門形式で造られるのが通常である。そしてこの二つの門は，必ず直角に配される。…

※「一の門」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報