JPS60126959U - circuit breaker - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

Figure 1a is a perspective view showing the configuration of a conventional movable contact;
Figure b is a sectional view taken along line I-I in Figure 1a, Figure 2 is a sectional view showing an embodiment of the present invention, Figure 3 is a perspective view showing the configuration of a movable contact according to the present invention, and Figure 4 This figure is a perspective view showing the structure of the movable rod, and FIG. 5 is a cross-sectional plan view showing another example of the structure of the movable rod and the movable contact. 1: Case body, 2: Fixed iron core, 3: Excitation coil, 4:
Coil frame, 5: Coil spring, 6: Spring seat,
7: Substrate, 8: Movable iron core, 9: Movable rod, 9a: Sliding wall surface, 9b: Projection, 9c... Standing part, 9d: Front and rear walls, 9e
: vertical hole, 10: connection spring, 11 spring seat,
12: Repulsion spring, 13: Movable contact, 13a: Intoxicated portion, 13b: Recessed portion, 13c: Front and rear edges, 13: Front and rear edges, 14: Fixed contact, 15: Contact spring, 16:
Latch metal fitting, 17: Engagement groove, 18: Hook portion, 19: Latch return piece, 20: Projection, 21: Latch spring, 2
2: Reset handle.

Claims (1)

[Scope of utility model registration request] It is equipped with a fixed iron core around which an excitation coil is wound, a movable iron core that attracts attraction to the fixed iron core, and a movable rod that is connected to the movable iron core and has a movable contact that moves toward and away from the fixed contact that can be moved up and down. In the circuit breaker, the center part of the movable contact is bent vertically into a U-shape to form a bent part, and the vertically rising both sides of this bent part hold both side parts of the movable rod. to constitute a first vertical movement guide, and to constitute a front-rear guide by forming an upright part on a portion of the movable rod in which the front and rear edges of the bent portion of the movable contact slide into contact, and to constitute a front-back direction guide; A circuit breaker characterized in that a second vertically movable guide that engages with each other is formed on the front and rear sides of the movable rod and the inner wall surface of the movable rod that the front and rear sides contact.