Trigger-type liquid jetting device

Patent metadata

Field	Value
Publication number	US-9987648-B2
Application number	US-201515119621-A
Country	US
Kind code	B2
Filing date	Feb 25, 2015
Priority date	Feb 28, 2014
Publication date	Jun 5, 2018
Grant date	Jun 5, 2018

Abstract

Provided is a trigger-type liquid dispenser ( 1 ) including an operating lever ( 6 ) held swingably by a main body portion ( 3 ) in which a pump is disposed and including a spring member ( 7 ) that imparts restoring force to the operating lever ( 6 ). The trigger-type liquid dispenser ( 1 ) is configured to draw, pressurize, and force-feed a content liquid contained in a container (C) to dispense the content liquid through a nozzle ( 5 ), by actuating the pump in response to the operating lever ( 6 ) being pulled repeatedly. The spring member ( 7 ) is held swingably with respect to the main body portion ( 3 ), and, in response to the operating lever ( 6 ) being pulled, the spring member ( 7 ) undergoes elastic deformation and swings with respect to the main body portion ( 3 ).

First claim

The invention claimed is:

1. A trigger-type liquid dispenser comprising:
an operating lever held swingably by a main body portion in which a pump is disposed; and
a spring member that imparts restoring force to the operating lever, the trigger-type liquid dispenser being configured to draw, pressurize, and force-feed a content liquid contained in a container to dispense the content liquid through a nozzle, by actuating the pump in response to the operating lever being pulled repeatedly, wherein
the main body portion includes a bearing or a shaft portion,
the spring member includes at least one arm including one end having a shaft or a bearing portion held swingably by the bearing or the shaft portion included in the main body portion, another end abutting against the operating lever, and a curved portion connecting the one end and the other end,
in response to the operating lever being pulled, the pair of curved portions undergo elastic deformation and swing about the shaft portion of the main body portion or the spring member,
the main body portion includes a longitudinal tube, a horizontal tube which extends toward a front of the main body and that is connected to the longitudinal tube, and a cylindrical fitting wall which extends toward the front from the longitudinal tube and holds a cylinder member below the horizontal tube, and
the bearing or the shaft portion is disposed between the horizontal tube and the cylindrical fitting wall of the main body portion.

2. The trigger-type liquid dispenser of claim 1 , wherein the spring member includes the shaft portion held swingably by the bearing portion included in the main body and a pair of arms, including the at least one arm, extending from both ends of the shaft portion of the spring member, and the shaft portion and the pair of arms are formed integrally.

Assignees

• Fujiwara Kotaro
• Iizuka Shigeo
• Yoshino Kogyosho Co Ltd

Inventors

• Fujiwara Kotaro
• Iizuka Shigeo

Classifications

• B05B11/1011

  without substantial movement of the nozzle in the direction of the pressure stroke · CPC title

• B05B11/1077 Primary

  characterised by a particular shape or material (B05B11/1076 takes precedence) · CPC title

• B05B11/1016

  the outlet valve having a valve seat located downstream a movable valve element controlled by a pressure actuated controlling element (B05B11/1022, B05B11/1023 take precedence) · CPC title

• B05B11/0059 Primary

  allowing operation in any orientation, e.g. for discharge in inverted position · CPC title

• B05B11/1067

  actuated by pressure · CPC title