PROBLEM TO BE SOLVED: To provide an air feed balloon for a sphygmomanometer, which can reduce hand fatigue by increasing efficiency of a pressing operation.SOLUTION: A hollow air feed balloon, which is used as pressurization means for a sphygmomanometer and which is expanded/contracted by a manual pressing operation to feed air, comprises an expandable/contractible soft part. A part of the air feed balloon is formed of a hard part harder than the soft part. Thus, since the hard part functions as a fulcrum when the soft part of the air feed balloon is crushed, pressing operability is improved, and the pressing operation can be safely performed.COPYRIGHT: (C)2015,JPO&INPIT【課題】押圧操作の効率を高めて手の疲労を低減することのできる血圧計用送気球を提供する。【解決手段】血圧計の加圧手段として用いられ、手による押圧操作によって伸縮させて送気する、伸縮可能な軟質部を備える中空の送気球において、送気球の一部を、軟質部に対して硬質な硬質部で形成することにより、送気球の軟質部を潰す際に硬質部が支点となって機能するので、押圧操作性が向上、かつ、押圧操作を安全に行うことができる。【選択図】図2
