Contact Device
First Claim
1. A contact device comprising:
- a fixed terminal with a fixed contact;
a movable armature with a movable contact which contacts to or separates from said fixed contact;
a movable shaft connected to said movable armature at its one end;
a movable core secured to an opposite end of said movable shaft;
an electromagnetic mechanism for driving said movable core in response to an excitation current so as to bring said movable contact into contact with said fixed contact;
wherein said contact device further comprises;
a movable core receiver slid onto said movable shaft so that it faces a surface on the movable armature side of said movable core to receive said movable core driven by said electromagnetic mechanism, an impact absorber disposed on a surface on the movable armature side of said movable core receiver to absorb an impact generated when said movable core hit said movable core receiver, and a movement restriction member disposed on a surface on the movable armature side of said impact absorber to restrict a movement of said impact absorber.
2 Assignments
0 Petitions
Accused Products
Abstract
This contact device comprises a pair of fixed terminals 2 with a fixed contact 2a each, a movable armature 3 with movable contacts 3a which contact to or separate from the fixed contacts 2a, a movable shaft 4 connected to the movable armature 3 at its one end, a movable core 8 secured to the opposite end 4b side of the movable shaft 4, a movable core receiver 7 slid onto the movable shaft 4 so that it faces a surface 8b on the movable armature side of the movable core 3 to receive the movable core 8 driven by an electromagnetic mechanism, an impact absorber 17 disposed on a surface 7a on the movable armature side of the movable core receiver 7 to absorb an impact generated when the movable core 3 hit the movable core receiver 7, and a stopper 16 (a movement restriction member) disposed on a surface on the movable armature side of the impact absorber 17 to restrict a movement of the impact absorber 17.
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Citations
23 Claims
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1. A contact device comprising:
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a fixed terminal with a fixed contact;
a movable armature with a movable contact which contacts to or separates from said fixed contact;
a movable shaft connected to said movable armature at its one end;
a movable core secured to an opposite end of said movable shaft;
an electromagnetic mechanism for driving said movable core in response to an excitation current so as to bring said movable contact into contact with said fixed contact;
wherein said contact device further comprises;
a movable core receiver slid onto said movable shaft so that it faces a surface on the movable armature side of said movable core to receive said movable core driven by said electromagnetic mechanism, an impact absorber disposed on a surface on the movable armature side of said movable core receiver to absorb an impact generated when said movable core hit said movable core receiver, and a movement restriction member disposed on a surface on the movable armature side of said impact absorber to restrict a movement of said impact absorber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification