US 9,851,334 B2 · Gas sensor assembling method and gas sensor assembling apparatus

Abstract

A gas sensor assembling method includes a step for placing an element dummy such that it has a longitudinal direction in a vertical direction, wherein the cross-sectional shape of the dummy is similar to the cross-sectional shape of a sensor element, a step for fitting a through hole in an annularly-mounted member to the dummy from above vertically, wherein the through hole included in the annularly-mounted member corresponds to the cross-sectional shape of the sensor element, a step for fitting a tubular member to an outer periphery of the annularly-mounted member from above vertically, an step for placing the sensor element in contact with an upper end portion of the dummy on a single straight line, and an step for descending the dummy downwardly vertically for descending the sensor element and fitting the through hole in the annularly-mounted member to the sensor element.

Claims18

Dependent claims

A gas sensor assembling method comprising:

placing an element dummy having a shape similar to that of a sensor element such that it has a longitudinal direction in a vertical direction, said sensor element having an elongated shape mainly composed of a ceramic;
fitting a through hole in an annularly-mounted member to said element dummy from above vertically, said annularly-mounted member having a disk shape or a cylindrical shape, and said through hole having a shape corresponding to a cross-sectional shape of said sensor element;
fitting a tubular body to an outer periphery of said annularly-mounted member from above vertically;
placing said sensor element in contact with an upper end portion of said element dummy on a single straight line;
and
descending said element dummy downwardly vertically for descending said sensor element and fitting said through hole in said annularly-mounted member to said sensor element.

3 more elements

A gas sensor assembling apparatus comprising:

an element dummy having a shape similar to that of a sensor element, said sensor element having an elongated shape mainly composed of a ceramic;
a dummy placing component for placing said element dummy such that it has a longitudinal direction in a vertical direction;
an annularly-mounted member fitting component for fitting a through hole in an annularly-mounted member to said element dummy from above vertically, said annularly-mounted member having a disk shape or a cylindrical shape, and said through hole having a shape corresponding to a cross-sectional shape of said sensor element;
a tubular-body fitting component for fitting a tubular body to an outer periphery of said annularly-mounted member from above vertically;
an element placing component for placing said sensor element in contact with an upper end portion of said element dummy on a single straight line;
and
an element fitting component for descending said element dummy downwardly vertically for descending said sensor element and fitting said through hole in said annularly-mounted member to said sensor element.

4 more elements

Dependencies are inferred from the claim text.

Gas sensor assembling method and gas sensor assembling apparatus

Life of this patent

Gas sensor assembling method and gas sensor assembling apparatus

Life of this patent

Abstract

Claims18