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Title:
FLOW CONTROL VALVE AND BLOOD PRESSURE INFORMATION MEASUREMENT DEVICE
Document Type and Number:
Japanese Patent JP2017214977
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a flow control valve where surfaces of a plurality of convex regions formed on an inner peripheral surface of a bobbin are arranged closer to a complete round.SOLUTION: A flow control valve 100E includes a bobbin 120 and a plunger 140. On an inner peripheral surface 122 of the bobbin 120, a plurality of concave regions 123, which extends in a parallel with an axis direction of the plunger 140, and a plurality of concave grooves 124, which forms a flow passage for fluid in valve opening, are alternately arranged. The concave grooves 124 contains a first concave groove G1, a second concave groove G2 and a third concave groove G3 aligned in order in a circumferential direction. A circumferential interval between the first concave groove G1 and the second concave groove G2 is equal to a circumferential interval between the second concave groove G2 and the third concave groove G3.SELECTED DRAWING: Figure 12

Inventors:
SANO YOSHIHIKO
FUKUI RYOICHI
Application Number:
JP2016108589A
Publication Date:
December 07, 2017
Filing Date:
May 31, 2016
Export Citation:
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Assignee:
OMRON HEALTHCARE CO LTD
International Classes:
F16K31/06; A61B5/022; A61B5/0225; A61B5/0235; H01F7/06; H01F7/121; H01F7/16
Attorney, Agent or Firm:
Fukami patent office