JPS61107135U - - Google Patents

Description

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

第１図はこの考案にかかる回路しや断器の一実
施例を示す側面図、第２図は同固定枠の一実施例
を示す斜視図、第３図は同固定枠の部分的斜視図
、第４図は第２図における―線に沿つた断面
図、第５図は従来の回路しや断器の部分断面図、
第６図は同開閉機構を示す側面図、第７図は同固
定枠の斜視図である。 ３…可動接触装置、４…開閉機構、５…電磁引
き外し機構、６…熱動引き外し機構、９…操作ハ
ンドル、２０…固定枠、２０ｂ…Ｕ字形の屈曲基
部、２０ｃ，２０ｆ…側壁、２０ｄ…腕、２０ｅ
…ストツパ段部、２０ｈ…係合孔。なお、図中同
一符号は同一もしくは相当部分を示す。 Fig. 1 is a side view showing an embodiment of the circuit breaker according to the invention, Fig. 2 is a perspective view showing an embodiment of the fixed frame, and Fig. 3 is a partial perspective view of the fixed frame. , FIG. 4 is a sectional view taken along the line - in FIG. 2, and FIG. 5 is a partial sectional view of a conventional circuit breaker.
FIG. 6 is a side view showing the opening/closing mechanism, and FIG. 7 is a perspective view of the fixed frame. 3... Movable contact device, 4... Opening/closing mechanism, 5... Electromagnetic tripping mechanism, 6... Thermal tripping mechanism, 9... Operating handle, 20... Fixed frame, 20b... U-shaped bent base, 20c, 20f... Side wall, 20d...arm, 20e
...Stopper step, 20h...Engagement hole. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] Ｕ字形固定枠に可動接触装置と開閉機構と電磁
引き外し機構および熱動引外し機構が支持され、
かつ上記開閉機構に操作ハンドルが連結された回
路しや断器において、上記Ｕ字形固定枠の開放側
のいずれか一方の側壁に、対向する他方の側壁に
向けてのびる腕を設け、この腕にストツパ段部を
形成するとともに、このストツパ段部の先端に形
成された係止部が他方の側壁に形成した係合孔に
嵌合され、上記両側壁がＵ字形の屈曲基部から開
放端まで一様な寸法で対向して互いに連結されて
いることを特徴とする回路しや断器。 A movable contact device, an opening/closing mechanism, an electromagnetic tripping mechanism, and a thermal tripping mechanism are supported by a U-shaped fixed frame.
And in the circuit breaker in which the operating handle is connected to the opening/closing mechanism, an arm is provided on one of the open side walls of the U-shaped fixed frame and extends toward the other opposing side wall, and the arm is provided with an arm extending toward the opposite side wall. A stopper stepped portion is formed, and a locking portion formed at the tip of the stopper stepped portion is fitted into an engagement hole formed in the other side wall, so that the both side walls are aligned from the U-shaped bent base to the open end. Circuit breakers and circuit breakers are characterized in that they are connected to each other facing each other with various dimensions.