JPS5860749U

JPS5860749U - Actuator for door lock

Info

Publication number: JPS5860749U
Application number: JP15519181U
Authority: JP
Inventors: 規雄松本; 梅原　輝雄
Original assignee: 日立金属株式会社
Priority date: 1981-10-19
Filing date: 1981-10-19
Publication date: 1983-04-23
Also published as: JPS6325693Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来の可動磁石式往復駆動装置の断面図、第２
図は本考案に係る往復駆動装置の一実施例を示す断面図
、第３図は第２図の要部拡大断面図、第４図は本考案に
係る往復駆動装置の推力特性図、第５図は本考案に係る
往復駆動装置の他の実施例を示す断面図、第６図は第５
図の要部拡大断面図である。１：Ｅ型ヨーク、２：外周ヨーク、３ａ：センターヨー
ク、４ａ、４’　　ａ、４ｂ、４’　ｂ：サイドヨーク
、５、　５’　　：電磁コイル、＄ａ、　　５ｂ；可動
子、７：永久磁石、８ａ、　ａ／　ａ、　８ｂ、　８’
　ｂ：磁極片、１０：軸。Figure 1 is a sectional view of a conventional movable magnet type reciprocating drive device;
The figure is a sectional view showing an embodiment of the reciprocating drive device according to the present invention, FIG. 3 is an enlarged sectional view of the main part of FIG. The figure is a sectional view showing another embodiment of the reciprocating drive device according to the present invention, and FIG.
FIG. 2 is an enlarged cross-sectional view of the main part of the figure. 1: E type yoke, 2: Outer yoke, 3a: Center yoke, 4a, 4' a, 4b, 4' b: Side yoke, 5, 5': Electromagnetic coil, $a, 5b; Mover, 7: Permanent Magnet, 8a, a/a, 8b, 8'
b: magnetic pole piece, 10: shaft.

Claims

[Claims for Utility Model Registration] 1. In an actuator for a device that automatically locks and unlocks a door using an electric operation switch, a yoke made of a soft magnetic material whose longitudinal cross-sectional end face in a plane including the shaft is formed into a substantially E shape. In the yoke, two electromagnetic coils are arranged so that the same poles are generated in adjacent parts, and a movable magnetic coil is constructed by attaching magnetic pole pieces to each end of a permanent magnet magnetized in the axial direction in the center of the yoke. An actuator for a door lock, comprising a reciprocating drive device in which a magnetic pole piece is disposed so as to be movable in the axial direction, and the inner diameter of the central magnetic pole piece of the yoke is set larger than the inner diameter of the end magnetic pole piece of the forward yoke. . 2. Registration of a utility model characterized by having a reciprocating drive device having thrust characteristics such that the thrust at the start of operation is greater than the thrust at the end of operation, with the dimensional relationship between the yoke and the mover set as shown below. A door lock actuator according to claim 1. D, A>C 82021g However, A, the axial length between the end magnetic pole pieces of the E type yoke B, the axial length of the E type yoke center magnetic pole piece C: the axial length between the end magnetic pole pieces on the outer peripheral surface of the mover , D: Length in the axial direction of the mover 1 g: Gap between the inner wall surface of the E-type yoke center pole piece and the outer peripheral surface of the mover. 3. The door lock actuator according to claims 1 and 2, which is characterized by comprising a reciprocating drive device in which buffer members are respectively attached to both ends of the magnetic pole pieces.