公开(公告)号：US20240416374A1

公开(公告)日：2024-12-19

申请号：US18704676

申请日：2022-10-26

Applicant: YOSHINO KOGYOSHO CO., LTD.

Inventor： Kota SAKATA ,  Kotaro FUJIWARA ,  Shigeru HAYAKAWA

IPC: B05B11/10

Abstract: A trigger-type liquid sprayer including: a sprayer main body; and a nozzle member. The sprayer main body includes: a vertical supply cylindrical part; a trigger mechanism; a reservoir cylinder; and a reservoir plunger. The trigger mechanism includes: a main cylinder; a main piston; and a biasing member.

公开(公告)号：US20240009693A1

公开(公告)日：2024-01-11

申请号：US18037349

申请日：2021-11-11

Applicant: YOSHINO KOGYOSHO CO., LTD.

Inventor： Kota SAKATA ,  Kotaro FUJIWARA

IPC: B05B11/10

CPC classification number: B05B11/1057 ,  B05B11/1097

Abstract: A trigger-type liquid sprayer includes a vertical supply tube, a reservoir cylinder into which a liquid that has passed through the inside of the vertical supply tube is supplied, and a reservoir plunger disposed inside the reservoir cylinder and configured to move toward one side in an axial direction in response to supply of a liquid into the reservoir cylinder while being biased toward the other side, and the vertical supply tube has a recovery path disposed in a rear end portion of the vertical supply tube, extending downward from the reservoir cylinder, and having a lower end portion closed from below, a communication path extending in a circumferential direction of the vertical supply tube from the recovery path, and a communication opening disposed in front of the recovery path and configured to allow the communication path and an inside of a container body to communicate with each other.

公开(公告)号：US20180264487A1

公开(公告)日：2018-09-20

申请号：US15755253

申请日：2016-08-23

Applicant: Kotaro FUJIWARA ,  Yoshiyuki KAKUTA ,  Yoshino Kogyosho Co.,Ltd.

Inventor： Kotaro FUJIWARA ,  Yoshiyuki KAKUTA

IPC: B05B1/34 ,  B05B1/12 ,  B05B7/00 ,  B05B11/00

CPC classification number: B05B1/3436 ,  B05B1/12 ,  B05B1/34 ,  B05B7/0018 ,  B05B11/0029 ,  B05B11/0044 ,  B05B11/3011 ,  B05B11/3074 ,  B05B11/3077

Abstract: A discharge device main body having a flow tube through which contents from a container flow inside and which is mounted on the container , a support body extending along the flow tube and fitted to the inside of the flow tube, and a nozzle tip having a nozzle tip body formed in a cylindrical shape with a top including a circumferential wall portion fitted to an outer circumferential surface of the support body and a top wall portion in which a discharge hole of the contents is formed, the nozzle tip being mounted on a distal end portion of the flow tube in a state of being combined with the support body in which a discharge path to communicate the inside of the flow tube and the discharge hole with each other is formed, and the support body is formed separately from the flow tube and the nozzle tip.

公开(公告)号：US20250010319A1

公开(公告)日：2025-01-09

申请号：US18704731

申请日：2022-10-26

Applicant: YOSHINO KOGYOSHO CO., LTD.

Inventor： Kota SAKATA ,  Kotaro FUJIWARA

IPC: B05B11/10 ,  B05B11/00

Abstract: The present invention is a trigger-type liquid sprayer (1) including a sprayer body (2) and a nozzle member (3) provided with a spray hole (4) through which liquid is sprayed. The sprayer body (2) includes a vertical feed tube portion (10), a connecting tube portion (20), a sealing plug (110), a trigger mechanism (80), a reservoir cylinder (40), a reservoir plunger (50), and a recovery mechanism (160). The recovery mechanism (160) is provided with a communication hole (122) in communication with the spray hole (4) and a feed hole (126) in communication with the inside of the connecting tube portion (20).

公开(公告)号：US20200338579A1

公开(公告)日：2020-10-29

申请号：US16758380

申请日：2018-08-21

Applicant: YOSHINO KOGYOSHO CO., LTD.

Inventor： Kotaro FUJIWARA ,  Kazuhisa YOSHIMURA

IPC: B05B11/00 ,  B05B1/12

Abstract: A trigger-type liquid sprayer in which a spring member urging an operation lever is less likely to be fatigued. A trigger-type liquid sprayer includes a sprayer main body attached to a container, an operation lever held to be swingable in a front-back direction with respect to the sprayer main body, and a spring member urging the operation lever forward. The spring member includes a fixed part that is located in front of a swing center of the operation lever and is fixed and held to the sprayer main body, and a projection that is located below the fixed part. The operation lever includes an inclined surface that is inclined upward from downward and frontward from backward and is urged by the projection abutting against the inclined surface.

公开(公告)号：US20230415183A1

公开(公告)日：2023-12-28

申请号：US18036912

申请日：2021-11-11

Applicant: YOSHINO KOGYOSHO CO., LTD.

Inventor： Kota SAKATA ,  Kotaro FUJIWARA

IPC: B05B11/10 ,  B05B11/00

CPC classification number: B05B11/1057 ,  B05B11/0089

Abstract: A trigger-type liquid sprayer includes a sprayer main body mounted on a container body, and a nozzle member having a spray hole, the sprayer main body includes a vertical supply tube, a trigger mechanism having a trigger portion, a reservoir cylinder into which a liquid that has passed through the inside of the vertical supply tube is supplied in response to rearward movement of the trigger portion, and a reservoir plunger movably disposed inside the reservoir cylinder and configured to move toward one side in response to supply of the liquid into the reservoir cylinder while being biased toward the other side, and a displacement curbing portion is provided between a rear cylinder portion of the reservoir cylinder protruding rearward beyond the vertical supply tube and the vertical supply tube and configured to curb displacement of the rear cylinder portion with respect to the vertical supply tube.

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.