Title:
DAMPER DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/073574
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a damper device whereby the range of discharge rates over which the discharge precision of ink from a recording head is stable can be increased relative to existing technologies. To solve said problem, a damper device (20) is provided with the following: valves (23, 26) for opening and closing connecting channels (20e, 20f); springs (24, 27) that bias the valves (23, 26) in the direction whereby said valves (23, 26) close the connecting channels (20e, 20f); a pressure-receiving plate (29) that is subjected to atmospheric pressure and changes the volume of a head-side chamber (20a) by changing in position; and rod members (30, 31) that are disposed between the valves (23, 26) and the pressure-receiving plate (29) and transmit force from the valves (23, 26) to the pressure-receiving plate (29) or vice versa. This damper device (20) is characterized in that: the position of the pressure-receiving plate (29) is different each time the rod members (30, 31) become capable of transmitting force from the valves (23, 26) to the pressure-receiving plate (29) or vice versa; and the total connecting-channel cross-sectional area left open by the valves is different depending on the states of the valves.
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Inventors:
OHNISHI MASARU (JP)
Application Number:
PCT/JP2013/080025
Publication Date:
May 15, 2014
Filing Date:
November 06, 2013
Export Citation:
Assignee:
MIMAKI ENG KK (JP)
International Classes:
B41J2/175
Foreign References:
| JP2011230317A | 2011-11-17 | |||
| JP2012045894A | 2012-03-08 | |||
| JP2005219229A | 2005-08-18 | |||
| JP2005306030A | 2005-11-04 |
Attorney, Agent or Firm:
WATANUKI PATENT SERVICE BUREAU (JP)
A patent business corporation Watanuki international patent and a trademark office (JP)
A patent business corporation Watanuki international patent and a trademark office (JP)
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