公开(公告)号：US4939321A

公开(公告)日：1990-07-03

申请号：US347995

申请日：1989-05-05

申请人： Hazime Tanaka ,  Keiji Sasaki ,  Hirayoshi Suzuki

发明人： Hazime Tanaka ,  Keiji Sasaki ,  Hirayoshi Suzuki

IPC分类号： F16J3/02 ,  H01H35/34

CPC分类号： H01H35/34

摘要： A pressure switch includes a housing, the inner space of which is divided into a pressurized fluid operating chamber and a switch mechanism chamber by a flexible diaphragm. The operating chamber communicates with a pressurized fluid inlet hole, and the mechanism chamber houses a switch mechanism. The diaphragm is hermetically fixed to the inner surface of the housing by an elastic seal member. The switch mechanism has a spring for urging the diaphragm toward the operating chamber. The switch mechanism is turned on or off as the diaphragm is transformed against the urging force of the spring by the pressure of a fluid introduced through the inlet hole into the operating chamber. The diaphragm is constructed by stacking a metal film and a flexible plastic film in layers so that the films are independent of each other. The diaphragm, whose peripheral edge is fixed to the inner surface of the inner space is so located that the metal film faces the operating chamber and the plastic film faces the mechanism chamber. The respective thicknesses of the metal film and the plastic film are so set that stress produced in the metal film when the metal film is elastically transformed by the transformation of the diaphragm is smaller than stress produced in the plastic film when the plastic film is elastically transformed by the transformation of the diaphragm.

摘要翻译： 压力开关包括壳体，其内部空间被柔性隔膜分成加压流体操作室和开关机构室。 操作室与加压流体入口孔连通，机构室容纳开关机构。 隔膜通过弹性密封构件气密地固定在壳体的内表面上。 开关机构具有用于将隔膜推向操作室的弹簧。 开关机构由于通过入口孔引入到操作室中的流体的压力克服弹簧的作用力而变形而导通或关闭。 隔膜通过层叠金属膜和柔性塑料膜构成，使得膜彼此独立。 其周缘固定在内部空间的内表面上的隔膜位于使得金属膜面向操作室并且塑料膜面向机构室的位置。 金属膜和塑料膜的各自的厚度被设定为当金属膜通过膜片的变换弹性变形时在金属膜中产生的应力小于当塑料膜弹性变形时在塑料膜中产生的应力 通过膜片的转换。

公开(公告)号：US4590528A

公开(公告)日：1986-05-20

申请号：US601495

申请日：1984-04-18

申请人： Mitsuharu Tsuruoka ,  Keiji Sasaki

发明人： Mitsuharu Tsuruoka ,  Keiji Sasaki

IPC分类号： G11B15/675 ,  G11B23/087 ,  G11B25/06 ,  G11B5/78 ,  G11B15/66

CPC分类号： G11B15/675 ,  G11B23/087 ,  G11B25/066

摘要： A magnetic recording and/or reproducing apparatus records and/or reproduces a signal on and/or from a magnetic tape within a miniature type tape cassette which is smaller than a standard type tape cassette, when loaded with an adapter which has a shape approximately the same as the shape of the standard type tape cassette and accommodates therein the miniature type tape cassette. The recording and/or reproducing apparatus comprises an inserting opening through which the adapter is inserted, an adapter housing for holding the adapter which is inserted through the inserting opening, a moving mechanism for moving the adapter housing between a first position opposing the inserting opening and a second position where the adapter is loaded into the recording and/or reproducing apparatus, through a predetermined position, a control circuit for controlling the operation of the moving mechanism so that the adapter housing is selectively stopped at the predetermined position, and an opening located at a position so as to enable access to the adapter housing in the predetermined position. The miniature type tape cassette is inserted into and removed from the adapter through the opening.

摘要翻译： 磁性记录和/或再现装置在小型标准型磁带盒的小型磁带盒内和/或上的磁带上记录和/或再现信号，当加载具有大致为 与标准型磁带盒的形状相同，并容纳在其中的微型磁带盒。 记录和/或再现装置包括插入适配器的插入开口，用于保持插入通过插入开口的适配器的适配器壳体，用于使适配器壳体在与插入开口相对的第一位置和 通过预定位置将适配器装载到记录和/或再现装置中的第二位置，用于控制移动机构的操作的控制电路，使得适配器壳体选择性地停在预定位置，并且位于 在一个位置，以使得能够在适配器壳体中进入预定位置。 小型磁带盒通过开口插入适配器并从适配器中取出。