JPS63129925U

JPS63129925U -

Info

Publication number: JPS63129925U
Application number: JP2205787U
Authority: JP
Priority date: 1987-02-19
Filing date: 1987-02-19
Publication date: 1988-08-25

Description

[Brief explanation of the drawing]

第１図はこの考案の第１実施例を示す断面図、
第２図はこの考案の第２実施例を示す断面図、第
３図はこの考案の第３実施例を示す断面図、第４
図はこの考案の第４実施例を示す断面図、第５図
は従来の開閉器の転流板の嵌合部を示す断面図、
第６図は従来の開閉器の一例の断面図、第７図は
第６図のものの消弧動作説明用の要部断面図であ
る。図において６は可動接触子、６Ａは可動接点、
８は固定接触子、８Ａは固定接点、１１はカバー
、１５は転流板、１７は第１の嵌合部、２１Ａは
係止部材、２２Ａは第２の嵌合部である。尚、図
中、同一符号は同一又は相当部分を示す。 FIG. 1 is a sectional view showing the first embodiment of this invention;
Fig. 2 is a sectional view showing a second embodiment of this invention, Fig. 3 is a sectional view showing a third embodiment of this invention, and Fig. 4 is a sectional view showing a third embodiment of this invention.
The figure is a sectional view showing the fourth embodiment of this invention, and FIG. 5 is a sectional view showing the fitting part of the commutation plate of a conventional switch.
FIG. 6 is a sectional view of an example of a conventional switch, and FIG. 7 is a sectional view of a main part of the switch shown in FIG. 6 for explaining the arc extinguishing operation. In the figure, 6 is a movable contact, 6A is a movable contact,
8 is a fixed contact, 8A is a fixed contact, 11 is a cover, 15 is a commutation plate, 17 is a first fitting part, 21A is a locking member, and 22A is a second fitting part. In the drawings, the same reference numerals indicate the same or corresponding parts.

Claims

[Scope of Claim for Utility Model Registration] (1) A fixed contact coupled to a fixed contact, a movable contact facing the fixed contact and joined to a movable contact, and a fixed contact arranged parallel to the fixed contact with each other in a predetermined manner. A plurality of metal arc-extinguishing plates cumulatively arranged in parallel at intervals and on the tip side of the movable contact, a commutation plate provided above the movable contact, the fixed contact, the movable contact,
In the switch, the switch includes an arc extinguishing chamber that covers the metal arc extinguishing plate and the commutation plate, and a fitting part that is a flat groove carved in the arc extinguishing chamber and into which the tip of the commutator plate is fitted. A locking member is provided at the tip of the commutation plate,
The switch is characterized in that the arc extinguishing chamber is provided with a second fitting portion consisting of a groove into which the locking member is fitted. (2) The locking member is a hook-shaped member in which the tip of the commutation plate is bent outward and the cross-sectional shape is hook-shaped. switch. (3) The locking member is a hook-shaped member in which the tip of the commutation plate is bent inward and has a hook-shaped cross section. switch. (4) The opening/closing device according to claim 1 of the utility model registration claim, wherein the locking member is a wedge-shaped member in which the tip of the commutation plate is bent at a right angle and the cross-sectional shape is wedge-shaped. vessel. (5) The switch according to claim 1, wherein the locking member is the head of a screw screwed into the tip of the commutator plate.