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发明授权
US06048053A Ink jet recording head including a spacing member for defining a gap between a fixed board and a piezoelectric element 失效
喷墨记录头包括用于限定固定板和压电元件之间的间隙的间隔构件

Ink jet recording head including a spacing member for defining a gap between a fixed board and a piezoelectric element
摘要：
An ink jet recording head having high printing quality which is achieved independently of ambient temperature changes. An overhang portion (22) is formed on a surface of a frame (20) in such a manner that the overhang portion extends close to an island portion (9) of a resilient plate. A front end (17) of a fixed board (14) is fixed to the overhang portion (22) so that a gap (23) is interposed between a lateral side of the fixed board (14) and the frame (20). The piezoelectric vibration elements (8) are secured to the opposite end of the fixed board and abut against each of the island portions. The thickness (L0) of the overhang portion (22) affects that thermal expansion differential derived from a difference in the materials of the frame (20) and the piezoelectric vibration element. Since the thickness is minimized, the thermal expansion differential between the frame (20) and the piezoelectric vibration elements (8) is correspondingly minimized.
摘要（中）：

具有高的打印质量的独立于环境温度变化实现的喷墨记录头。 突出部分（22）以这样的方式形成在框架（20）的表面上，使得伸出部分靠近弹性板的岛部（9）延伸。 固定板（14）的前端（17）固定在伸出部分（22）上，从而在固定板（14）的侧面和框架（20）之间夹有间隙（23）。 压电振动元件（8）固定在固定板的相对端，并与每个岛部抵接。 突出部分（22）的厚度（L0）影响由框架（20）和压电振动元件的材料的差异导出的热膨胀差异。 由于厚度最小化，所以框架（20）和压电振动元件（8）之间的热膨胀差异相应地被最小化。

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