Title:
DISPENSER
Document Type and Number:
Japanese Patent JP2022018054
Kind Code:
A
Abstract:
To provide a dispenser effective in both reducing the size and accelerating the dispensing.SOLUTION: A dispenser 1 comprises: a plunger 100; a guide block 200 which guides the plunger 100 so that the plunger advances/retreats along an axial line L1; a dispenser unit 300 which discharges/suctions liquid according to the advancement/retreatment of a leading end surface 101; and a driving unit 400 that advances/retreats the plunger 100. The driving unit 400 has: a cylinder 410 to accommodate the plunger 100; an annular piston 450 that partitions the inside of the cylinder 410 into a first space 413 and a second space 414 between an outer peripheral surface of the plunger 100 and an inner peripheral surface of the cylinder 410; and a holding unit 461 to hold the piston 450 on the outer periphery of the plunger 100 while permitting the piston 450 to float in a direction perpendicular to the axial line L1.SELECTED DRAWING: Figure 3
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Inventors:
FUJIMOTO SHINYA
Application Number:
JP2020184441A
Publication Date:
January 26, 2022
Filing Date:
November 04, 2020
Export Citation:
Assignee:
IWASHITA ENG INC
International Classes:
F04B13/00; B05C5/00; B05C11/10; F04B9/10
Domestic Patent References:
| JP2014163372A | 2014-09-08 | |||
| JP2002518624A | 2002-06-25 |
Attorney, Agent or Firm:
Yoshiki Hasegawa
Yasunori Ishizaka
Shigeki Matsuo
Yasunori Ishizaka
Shigeki Matsuo