公开(公告)号：US3842450A

公开(公告)日：1974-10-22

申请号：US33764573

申请日：1973-03-02

申请人： PAD M

发明人： PAD M

IPC分类号： A47D9/02 ,  A47C3/02 ,  A63G9/16 ,  H01H3/16 ,  H02K33/10 ,  H01F7/12

CPC分类号： A47C3/02 ,  A47D9/02 ,  A63G9/16 ,  H01H3/16 ,  H02K33/10 ,  Y10S5/904

摘要： A piece of oscillating furniture, for example a cradle, rocking chair, swinging garden seat or hammock, or a plaything, for example a swing or rocking-horse, is provided with an electromagnetic oscillation maintenance device including a ferromagnetic core disposed within and movable axially relative to a hollow coil support of an electromagnet. The core has an outer sheath of patent leather frictionally mounted in a glass lining disposed on an inner surface of the coil support. A switch is arranged so that after a given change in the direction of oscillation of the piece of furniture or plaything, it closes a circuit to intermittently supply current to the electromagnet to provide oscillation maintaining impulses.

摘要翻译： 一个摆动式家具，例如摇篮，摇椅，摆动花园座椅或吊床，或玩具，例如秋千或摇马，设置有电磁振荡维护装置，其包括设置在轴向内且可轴向移动的铁磁芯 相对于电磁体的中空线圈支架。 芯部具有摩擦安装在设置在线圈支撑件的内表面上的玻璃衬里中的专利皮革的外护套。 开关被布置成使得在家具或玩具的摆动方向给定的改变之后，闭合电路以间断地向电磁体提供电流以提供振荡保持脉冲。