Housing structure for steering apparatus

The present invention provides a new housing structure of a steering device capable of suppressing rainwater, salt water, or the like from intruding into a protection sensor-like housing. In a housingstructure for a steering apparatus, a first seal holding portion 50B is formed to a first sensor housing 50 and a second seal holding portion 51B is formed to a second sensor housing 51, and in a state in which the first sensor housing 50 is combined with the second sensor housing 51, a seal ring 55 is held between the first seal holding portion 50B and the second seal holding portion 51B, and recessed space parts 56A to 56D for storing moisture is formed on the radial outer side of the second seal holding portion 51B when viewed in the rotation axis of a steering shaft 4. 本发明提供能够抑制雨水或盐水等浸入保护传感器类的壳体的内部的新的转向装置的壳体结构。在第一传感器壳体(50)形成第一密封保持部(50B)，并且在第二传感器壳体(51)形成第二密封保持部(51B)，在组合了第一传感器壳体(50)和第二传感器壳体(51)的状态下，在第一密封保持部(50B)与第二密封保持部(51B)之间保持密封圈(55)，在第二密封保持部(51B)的从转向轴(4)的旋转轴线观察时的径向外侧形成贮存水分的凹状空间部(56A～56D)。