FLUID TRANSPORTING DEVICE, AND FLUID TRANSPORTER

• US 20100074781A1
• Filed: 11/13/2009
• Published: 03/25/2010
• Est. Priority Date: 11/01/2005
• Status: Active Grant

• Current Assignee: Seiko Epson Corporation (Seiko Group)
• Original Assignee: Seiko Epson Corporation (Seiko Group)
• Inventors: USHIKOSHI, Kenichi, MIYAZAKI, Hajime, KAWASUMI, Kazuo
• Granted Patent: US 8,157,546 B2
• Time in Patent Office: Days
• US Class Current: 417/474
• CPC Class Codes: A61M 5/14232 Roller pumps
• CPC Class Codes: F04B 43/082 the tubular flexible member being pressed against a wall by a number of elements, each having an alternating movement in a direction perpendicular to the axes of the tubular member and each having its own driving mechanism
• CPC Class Codes: F04B 43/12 having peristaltic action
• CPC Class Codes: F04B 43/1223 the actuating elements, e.g. rollers, moving in a straight line during squeezing
• CPC Class Codes: F04B 43/1253 by using two or more rollers as squeezing elements, the rollers moving on an arc of a circle during squeezing

Abstract

A fluid transporting device is of a writhing type for transporting a fluid continuously. The fluid transporting device comprises a plurality of push pins arranged along a tube and radially on a concentric arc for squeezing a portion of the tube through which the fluid is fed and having elasticity substantially at right angles, and rollers for pushing those push pins sequentially from the inlet side to the outlet side of the fluid. With this structure, it is possible to provide a thin, small fluid transporting device for continuing a stable flow rate, and a fluid transporter having the fluid transporting device.

Claims

1. A fluid transporting device, comprising:

an elastic tube;

a tube frame that holds the elastic tube in an arc;

a rotary disk disposed in the arc, the rotational center of the rotary disk aligning with the center of the arc;

a plurality of push pins disposed between the elastic tube and the rotary disk; and

a rotary push plate arranged on an upper side of the rotary disc for facilitating fluid flow inside the elastic tube from an inlet to an outlet by pushing the plurality of push pins sequentially, the rotary push plate including;

a plurality of protrusions that place a bias on the elastic tube by pushing the plurality of push pins sequentially; and

a recess disposed between the plurality of protrusions that releases the bias from the elastic tube;

wherein

the push pin includes;

a semispherical end portion that contacts the rotary push plate; and

a pushing end portion that places the bias on the elastic tube.

2. The fluid transporting device as set forth in claim 1, wherein

the rotary push plate and the rotary disk are integral.

3. The fluid transporting device as set forth in claim 1, wherein

the rotary disk and the rotary push plate are detachable, and

the number of the protrusions is changeable.

4. The fluid transporting device as set forth in claim 1, wherein

a material of a case of the fluid transporting device has an organic matching property.

5. The fluid transporting device as set forth in claim 1, wherein

at least one of the push pins places the bias on the elastic tube.

6. The fluid transporting device as set forth in claim 1, further comprising:

a fluid storing container coupled to the elastic tube.