| 发明名称 | Liquid ejecting head and liquid ejecting apparatus | ||
| 摘要 | A liquid ejecting head comprises a pressure generation chamber communicating with a nozzle opening, a vibrating wall provided as one surface of the pressure generation chamber and vibrates so that ejects the liquid from the nozzle opening, and a resin portion having a recessed arc-shape and formed in a corner of the pressure generation chamber and formed of a resin material having a Young's modulus of less than or equal to 10 GPa. A ratio r/w of a radius r of the surface of the resin portion to a width w of the pressure generation chamber defined by the vibrating wall is greater than or equal to 0.017 and less than or equal to 0.087. | ||
| 申请公布号 | US9050800(B2) | 申请公布日期 | 2015.06.09 |
| 申请号 | US201314019953 | 申请日期 | 2013.09.06 |
| 申请人 | Seiko Epson Corporation | 发明人 | Ito Hiroshi;Ikehara Yasumi;Kato Jiro;Tomimatsu Hiroyuki |
| 分类号 | B41J2/45;B41J2/14;B41J2/055;B41J2/16 | 主分类号 | B41J2/45 |
| 代理机构 | Kilpatrick Townsend & Stockton LLP | 代理人 | Kilpatrick Townsend & Stockton LLP |
| 主权项 | 1. A liquid ejecting head, comprising: a pressure generation chamber communicating with a nozzle opening, wherein partition walls define a sidewall surface of the pressure generation chamber and a vibrating wall that vibrates so as to eject liquid from the nozzle opening defines a top surface of the pressure generation chamber, the pressure generation chamber having a defined corner wherein the partition walls are in direct contact with the vibrating wall; and a resin portion having a recessed arc-shape and formed along the defined corner of the pressure generation chamber and formed of a resin material having a Young's modulus of less than or equal to 10 GPa, wherein a ratio r/w of a radius r of the surface of the resin portion to a width w of the pressure generation chamber defined by the vibrating wall is greater than or equal to 0.017 and less than or equal to 0.087. | ||
| 地址 | Tokyo JP | ||