To provide a gas meter having a simplified structure and a compacted whole body.
In this diaphragm type gas meter, each of two metering chambers 2 existing across a partition 1 is equipped with two air chambers 7 across a diaphragm (metering film) 3 whose peripheral edge is fixed in the airtight state, and gas metering is performed by converting a advancing/retreating displacement of the diaphragm (metering film) 3 caused by gas supply/exhaust in the two air chambers 7 into a rotational motion respectively. The gas meter is equipped with a motion conversion means 4 for converting the advancing/retreating displacement of the bladder diaphragm (metering film) 3 caused by gas supply/exhaust into the rotational motion respectively, a rotary valve 11 for switching the air chamber 7 and a guide route 6 to be connected to an exhaust route 5 by the rotational motion through a window hole 9 and a relay chamber 10, a rotating shaft of the rotary valve 11 and a rotation output shaft of the motion conversion means 4 as a series of shaft 12, and a sealing surface 14 for separating the inside from the outside of a bearing part 13 on a lower part of the bearing part 13 where the shaft 12 is inserted in the rotary valve 11.
INOUE TOMIO
IWAKAWA MEGUMI
TAGAWA SHIGERU
MIZUKOSHI JIRO
ISONO NOBORU
TERANISHI YUTAKA
TOYO GASMETER CO
| JPS58127126A | 1983-07-28 | |||
| JP2003065822A | 2003-03-05 | |||
| JPS5382455A | 1978-07-20 | |||
| JPS6156914A | 1986-03-22 | |||
| JP2001188019A | 2001-07-10 | |||
| JPH0612923U | 1994-02-18 | |||
| JPS56124834U | 1981-09-22 |