Air micrometer and automatic measuring device

The air micrometer allows multiple measuring heads to share components, reducing costs and enhancing responsiveness by attaching to a common holding part and positioning the throttling section close to the nozzle.

JP7880126B2Active Publication Date: 2026-06-25DAI ICHI SOKUHAN WORKS
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Patent Information

Application Number
JP2022088631
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2022-05-31
Publication Date
2026-06-25
Estimated Expiration
2042-05-31

AI Technical Summary

Technical Problem

Existing air micrometers require multiple measurement heads with different sizes and components, leading to inefficiency and delayed responsiveness due to long air tube distances and the need for multiple pressure control units and sensors.

Method used

An air micrometer with multiple interchangeable measuring heads attached to a common holding part, sharing pressure control units and sensors, and positioning the throttling section close to the nozzle for faster response times.

Benefits of technology

Enables efficient measurement across a wide range with reduced costs and improved responsiveness by allowing multiple heads to share components and minimizing the distance between the throttling section and nozzle.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a pneumatic micrometer which does not need to prepare the same number of pressure control parts and pressure sensors as the number of a plurality of measurement heads, and can improve the responsiveness.SOLUTION: A pneumatic micrometer for detecting a dimension of a prescribed portion of a measurement object S by blowing out the supplied air toward the measurement object S from a nozzle 4 provided in a measurement head 3 via a pressure control part 1 and a narrowed part 2 comprises: a housing part 11 which has the pressure control part 1; a holding part 5 which is provided so as to be apart from the housing part 11; a measurement head 3 which is detachably attached to an attachment part 9 provided in the holding part 5; a narrowed part 2 which is provided in the holding part 5 or the measurement head 3; a first fluid passage 6 which has one end communicated with the pressure control part 1 of the housing part 11 and the other end communicated with the narrowed part 2; a second flow passage 7 which has one end communicated with the narrowed part 2 and the other end communicated with the nozzle 4; and a third fluid passage 8 which has one end communicated with the second flow passage 7 and the other end communicated with a detection part 10 for detecting the dimension from the back pressure of the air blown out from the nozzle 4.SELECTED DRAWING: Figure 1
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Citation Information

Patent Citations

  • Measuring system using air micrometer

    JP1995134018A

  • Air type measuring instrument

    JP2002277227A

  • Fixed throttle in air micrometer

    JP2005114511A

  • JP349719A