Structure of crossbar for manual motor starter

Patent metadata

Field	Value
Publication number	US-9734959-B2
Application number	US-201514975459-A
Country	US
Kind code	B2
Filing date	Dec 18, 2015
Priority date	Jan 22, 2015
Publication date	Aug 15, 2017
Grant date	Aug 15, 2017

Abstract

The present disclosure relates to a structure of a crossbar for a manual motor starter, and particularly, to a structure of a crossbar for a manual motor starter in which a function of an auxiliary lever is performed by a crossbar to thus reduce the number of components and an operational error. The structure of a crossbar for a manual motor starter (MMS) including a crossbar connected to an operating mechanism and an auxiliary contact lever operating an auxiliary contact, wherein a pressing unit is formed in the crossbar to operate the auxiliary contact lever upwardly.

First claim

What is claimed is:

1. A structure of a crossbar for a manual motor starter (MMS), the crossbar connected to an operating mechanism and an auxiliary contact lever operating an auxiliary contact, the structure of the crossbar comprising:
a body portion,
a leg portion extending downward from both sides of the body portion, the leg portion including a rotational shaft portion formed in an end portion of the leg portion; and
a pressing portion protruding in a lateral upward direction from the body portion, the pressing portion including a first extending portion extending in a lateral upward direction from the body portion and a second extending portion extending vertically upward from the first extending portion,
wherein the crossbar rotates about the rotational shaft portion,
wherein the first extending portion is sloped and extends to a lower portion of the auxiliary contact lever, and
wherein the second extending portion presses the lower portion of the auxiliary contact lever when the crossbar is moved upward.

2. The structure of a crossbar of claim 1 wherein the second extending portion is formed of an elastic member.

3. The structure of a crossbar of claim 1 , wherein the first extending portion is formed of an elastic member.

4. The structure of a crossbar of claim 1 , further comprising a rib extending in a vertical direction between the first extending portion and the body portion.

5. The structure of a crossbar of claim 1 , wherein an upper end portion of the second extending portion includes a roller.

Assignees

• Lsis Co Ltd

Inventors

• Cho Hyungeun

Classifications

• H01H71/56

  actuated by rotatable knob or wheel · CPC title

• H01H71/1072

  Release mechanisms which are reset by opening movement of contacts · CPC title

• H01H71/46 Primary

  having means for operating auxiliary contacts additional to the main contacts · CPC title

• H01H83/00

  Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current · CPC title

• H01H71/12 Primary

  Automatic release mechanisms with or without manual release · CPC title