PROBLEM TO BE SOLVED: To provide a sphygmomanometer which is high in measurement precision with a simpler and inexpensive structure.SOLUTION: The sphygmomanometer 10 includes: a cylindrical housing 30 a support belt 34 which is rolled and provided inside the housing 30 and whose diameter is expandable by elastic flexibility an air bag 36 which is provided inside the support belt 34 and presses the upper arm of a person to be measured, inserted inside a pin 32a for fixing and releasing a part of the support belt 34 so that its diameter is not expanded and a pressurizing means 18 for supplying air to the air bag 36. In the support belt 34, groups of holes 39 into which the pins 32a are fitted are arranged in the peripheral direction and the pins 32a are driven to be advanced and retracted by an actuator 32.COPYRIGHT: (C)2010,JPO&INPIT【課題】より簡便且つ廉価な構成で、計測精度の高い血圧計を提供する。【解決手段】血圧計10は、筒状のハウジング30と、ハウジング30の内側に丸められて設けられ、弾性的可撓性により拡径可能な支持帯34と、支持帯34の内側に設けられ、中に挿入された被測定者の上腕を圧迫する空気袋36と、支持帯34が拡径しないようにその一部を固定及び解除するピン32aと、空気袋36に対して空気を給気する加圧手段18とを有する。支持帯34には、ピン32aが嵌合する孔群39が周方向に並設されており、ピン32aはアクチュエータ32によって進退駆動される。【選択図】図2
