| 摘要 |
A trigger-type liquid sprayer (1) having, in a flow channel (P) of a sprayer body (11), a valve member (61) for restricting the direction of a flow of liquid in the flow channel (P) from a container (2) toward a nozzle (21) accompanying operation of a pump (31), wherein the valve member (61) is provided with an intake-side check valve (63) for allowing a flow of liquid from the container (2) toward the pump (31) and inhibiting a flow of liquid from the pump (31) toward the container (2), and a discharge-side check valve (64) for allowing a flow of liquid from the pump (31) toward the nozzle (21) and inhibiting a flow of liquid from the nozzle (21) toward the pump (31), and the discharge-side check valve (64) is formed having an umbrella shape elastically deformable in a radial direction and is configured so that an external peripheral end thereof comes in contact with an internal peripheral face of the flow channel, and the force with which the external peripheral end contacts the internal peripheral face of the flow channel (P) is non-uniform in a circumferential direction. |
