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METHOD FOR ASSEMBLING GAS SENSOR, DEVICE FOR ASSEMBLING GAS SENSOR, METHOD FOR ANNULARLY MOUNTING MEMBER TO BE ANNULARLY MOUNTED, AND METHOD FOR ANNULARLY MOUNTING CYLINDRICAL BODY
METHOD FOR ASSEMBLING GAS SENSOR, DEVICE FOR ASSEMBLING GAS SENSOR, METHOD FOR ANNULARLY MOUNTING MEMBER TO BE ANNULARLY MOUNTED, AND METHOD FOR ANNULARLY MOUNTING CYLINDRICAL BODY
Provided are a method and an apparatus capable of reliably assembling a gas sensor even in a case where a sensor element warps. A plurality of annular mounting members are repeatedly subjected to: a holding step of bringing a sensor element into an upper-side held state in which the sensor element is held such that an upper end thereof extends vertically with a lower end thereof being inserted into a recess; a fitting step of fitting a through hole of an annular mounting member with the upper end of the sensor element brought in to the upper-side clamped state; and a switching step of switching from the upper-side held state to a lower-side held state in which the sensor element is held such that the lower end thereof extends vertically, to thereby cause the annular mounting member to reach a predetermined annularly mounting position. As a result, an intermediate assembly product is obtained. Then, the intermediate assembly product is sandwiched from its sides by centering means to minimize the outside diameter thereof, and thereafter, a tubular body is annularly mounted to the intermediate assembly product.
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