公开(公告)号：US20170113238A1

公开(公告)日：2017-04-27

申请号：US15311395

申请日：2015-04-27

Applicant: YOSHINO KOGYOSHO CO., LTD.

Inventor： Kotaro FUJIWARA ,  Shigeo IIZUKA

IPC: B05B11/00

CPC classification number: B05B11/3011 ,  B05B11/0059 ,  B05B11/3025 ,  B05B11/3045 ,  B05B11/3064 ,  B05B11/3067 ,  B05B11/3077 ,  B65D83/32 ,  F16K15/14 ,  F16K15/145 ,  F16K15/148

Abstract: A trigger-type liquid dispenser includes valve member, which is provided in flow path to control liquid to flow in direction in flow path. Valve member includes intake-side check valve, which permits flow of liquid from container side to pump side and prevents flow of liquid from pump side to container side, and discharge-side check valve, which permits flow of liquid from pump side to nozzle side and prevents flow of liquid from nozzle side to pump side. Discharge-side check valve is formed in umbrella shape that is elastically deformable freely in radial direction and has outer circumferential end configured to contact inner circumferential surface of flow path, with contact force of outer circumferential end with respect to inner circumferential surface of flow path being distributed non-uniformly in circumferential direction.