Title:
PUMP AND INK-JET PRINTER
Document Type and Number:
Japanese Patent JP3849661
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a pump of a relatively simple structure, of little manufacturing cost, easy to miniaturize, hard to develop troubles, and of good pump performance, and an ink-jet printer having the same mounted thereon.
SOLUTION: The pump 30 mounted on the ink-jet printer is provided with a rotor 40 rotating at an eccentric position on a case 31 and a plate member 50 retained slidably in relation to the rotor 40, and delivers ink sucked from a suction hole 31a from a delivery hole 31b by rotating the plate member 50 together with the rotor 40 under a condition that a rim part thereof contacts inner surface of the 31. The rim part of the plate member 50 has a shape of which thickness gets thinner as it gets closer to a tip. Consequently, liquid tightness is improved and pump performance is improved as compared with a pump using a rigid plate member since the plate member flexibly sticks to the inner surface of the case 31.
Inventors:
Okamoto Tsuguo
Application Number:
JP2003082883A
Publication Date:
November 22, 2006
Filing Date:
March 25, 2003
Export Citation:
Assignee:
Brother Industries, Ltd.
International Classes:
B41J2/175; F04C2/344; F01C21/08; F04C5/00; F04C15/00; F04C27/00; (IPC1-7): F04C2/344; B41J2/175; F04C5/00; F04C27/00
Domestic Patent References:
| JP57069993U | ||||
| JP2001132672A | ||||
| JP3292150A |
Attorney, Agent or Firm:
Tsutomu Adachi
Katsunori Muto
Katsunori Muto
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