JPS6371510U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案の一実施例を示す概略説明図、
第２〜７図は同実施例の各部を取り出した図であ
つて、第２〜５図はヨーク、第６図はボビン、第
７図は可動アームをそれぞれ示した図であり、第
８図は従来例を示す。 １，２……左側ヨーク、３，４……右側ヨーク
、５……コイル、６……ボビン、７……可動アー
ム、８……取付具、９……永久磁石。 FIG. 1 is a schematic explanatory diagram showing an embodiment of the present invention;
Figures 2 to 7 are diagrams showing each part of the same embodiment, in which Figures 2 to 5 show the yoke, Figure 6 shows the bobbin, Figure 7 shows the movable arm, and Figure 8 shows the movable arm. shows a conventional example. 1, 2... Left yoke, 3, 4... Right yoke, 5... Coil, 6... Bobbin, 7... Movable arm, 8... Fixture, 9... Permanent magnet.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 磁性対よりなる平行に配置された一対の左側ヨ
ーク１，２及び右側ヨーク３，４と、これらヨー
ク１〜４の間隙中間部で面対向する一端が回動自
在に枢着され、上辺部１ａ〜４ａと面対向する他
端がボビン６の空隙６ａ内で回動可能に保持され
た可動アーム７と、左上側ヨーク１と右上側ヨー
ク３の下辺折曲部１ｂ―２，３ｂ―２に配置され
た永久磁石９と、前記ヨーク１〜４の磁路に巻回
され、作動時には前記永久磁石９の磁束を打ち消
すように配置されたコイル５とからなり、このコ
イル５への通電により、前記ヨーク１〜４と可動
アーム７とで構成される磁気回路の磁気抵抗を低
下させる方向に前記可動アーム７が回動し、非通
電時には永久磁石９の磁束により一方の回動端に
保持されることを特徴としたカメラ用アクチユエ
ーター。 A pair of left yokes 1, 2 and right yokes 3, 4, which are arranged in parallel and are made of a magnetic pair, and one end of these yokes 1 to 4, which face each other in the middle of the gap, are rotatably pivoted, and the upper side 1a ~ 4a, the other end is rotatably held within the gap 6a of the bobbin 6, and the lower bent portions 1b-2, 3b-2 of the upper left yoke 1 and the upper right yoke 3. It consists of a permanent magnet 9 arranged and a coil 5 wound around the magnetic path of the yokes 1 to 4 and arranged so as to cancel the magnetic flux of the permanent magnet 9 during operation, and by energizing this coil 5, The movable arm 7 rotates in a direction that lowers the magnetic resistance of the magnetic circuit constituted by the yokes 1 to 4 and the movable arm 7, and is held at one rotation end by the magnetic flux of the permanent magnet 9 when not energized. A camera actuator characterized by: