To provide an opening measuring device easy to install in an existing running water adjustment device, and accurately adjusting the running water adjustment device by accurately measuring the opening of an opening/closing member which opens/closes a water gate and a water passage.
In this opening measuring instrument for a running water adjustment device including: the opening/closing member which opens/closes a water gate and a water passage; and an operating shaft to be displaced with the opening/closing member by opening/closing operation, a rule member T is included. The rule member T includes: indexes F which show a standard position and a displacement position; a first scale Y which has first intervals H1-H10 along the longitudinal direction and to which the length information is referred; and a second scale X, which equally divides the first intervals H1-G10 with second intervals h1-h10 and to which the same discrimination information is referred relative to the same displaced quantity from the first scale Y, being displaced step by step in a direction crossing the longitudinal direction.
YAMAMOTO KOICHI
| JPH1122855A | 1999-01-26 | |||
| JPS5970984U | 1984-05-14 | |||
| JPS307258Y1 | ||||
| JPS60128081U | 1985-08-28 | |||
| JPS5133858U | 1976-03-12 |
Seiichi Yakumaru
Hiroaki Nakatani