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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10955012 B1

PDFFull Text
Date of Patent:
Mar. 23, 2021

Filed:

Feb. 22, 2019

Electromagnetic connecting device

Applicant:

Ogura Clutch Co., Ltd., Gunma, JP;

Inventors:

Yoshihiro Kurosu, Gunma, JP;

Yoshinori Fujisawa, Gunma, JP;

Daichi Takahashi, Gunma, JP;

Assignee:

OGURA CLUTCH CO., LTD., Gunma, JP;

Attorney:

Womble Bond Dickinson (US) LLP

Primary Examiner:

David R Morris

Assistant Examiner:

Lori Wu

Int. Cl.
CPC ...
F16D 27/112 (2006.01); F16D 67/02 (2006.01); F16D 27/14 (2006.01); F16F 15/12 (2006.01); F16F 1/02 (2006.01); F16F 15/124 (2006.01); F16F 1/32 (2006.01); F16F 15/121 (2006.01); F16D 27/00 (2006.01); F02B 67/06 (2006.01);
U.S. Cl.
CPC ...
F16D 27/112 (2013.01); F16D 27/14 (2013.01); F16D 67/02 (2013.01); F16F 1/027 (2013.01); F16F 1/324 (2013.01); F16F 15/1201 (2013.01); F16F 15/124 (2013.01); F16F 15/1215 (2013.01); F02B 67/06 (2013.01); F16D 2027/007 (2013.01); F16D 2027/008 (2013.01); F16D 2300/22 (2013.01);
Abstract

An electromagnetic connecting device includes a flange of a hub, an armature supported by the flange via a leaf spring, a rotor accommodating an electromagnetic coil, and an anti-vibration member. When an electric current is supplied to the electromagnetic coil, the armature moves in the axial direction of the hub against the spring force of the leaf spring, and is attracted to the rotor. The leaf spring includes a moving portion that moves in the axial direction together with the movement of the armature. The anti-vibration member is fixed to the moving portion of the leaf spring. The anti-vibration member includes a stopper that comes in contact with the flange, and a damper that comes in contact with the armature. With this configuration, an electromagnetic connecting device capable of reducing an impact sound both when the armature is attracted and released can be manufactured at a low manufacturing cost.

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