A set of civil engineering building supplies

Abstract

This article is a set of civil engineering supplies consisting of a pair of tread supports 1 and 2 that support the treads of a 90-degree two-stage staircase. As shown in the "Reference Perspective View Showing the Use State", the tread supports 1 and 2 are attached to the inner columns of the staircase room, and the inner edges of the two treads are supported by the tread supports 1 and 2. The right side surface of each tread support is formed at an angle corresponding to each kicking plate to be arranged. A groove is formed in the tread support 1 for inserting and passing the kicking plate arranged above from below.

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