US 12,411,036 B2
Pressure gauge and fluid pressure system having a fitting structure arrangement
Takahiro Suzuki, Tsukubamirai (JP)
Assigned to SMC CORPORATION, Tokyo (JP)
Filed by SMC CORPORATION, Tokyo (JP)
Filed on Dec. 8, 2022, as Appl. No. 18/063,191.
Claims priority of application No. 2021-204698 (JP), filed on Dec. 17, 2021.
Prior Publication US 2023/0194324 A1, Jun. 22, 2023
Int. Cl. G01F 15/18 (2006.01); G01F 15/06 (2022.01)
CPC G01F 15/185 (2013.01) [G01F 15/065 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A pressure gauge comprising:
a case configured to accommodate a measurement unit configured to measure a pressure of a fluid;
a display unit provided in the case and configured to display the pressure measured by the measurement unit; and
an adapter attached to a fluid pressure device, wherein
the adapter includes an attachment hole,
the case includes an attachment convex portion configured to be fitted into the attachment hole,
the display unit includes a display surface oriented in a direction intersecting an axis of the attachment convex portion, and
the attachment convex portion and the attachment hole have a fitting structure that allows a relative position between the attachment convex portion and the adapter in a circumferential direction about the axis of the attachment convex portion to be changed,
wherein
the adapter includes an inner attachment surface configured to surround the attachment hole,
the attachment convex portion includes an outer attachment surface having a polygonal shape, and
the inner attachment surface restricts rotation of the attachment convex portion about the axis relative to the adapter in a fitted state in which the attachment convex portion is fitted into the attachment hole.