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.:
Date of Patent:
Apr. 18, 2017
Filed:
Nov. 20, 2015
Aisin Seiki Kabushiki Kaisha, Kariya-shi, JP;
AISIN SEIKI KABUSHIKI KAISHA, Kariya-shi, JP;
Abstract
A solenoid includes: a coil wound around a bobbin; a case section accommodating the coil; a tubular yoke arranged on an inner circumferential portion of the coil; and a plunger arranged on an inner circumferential portion of the yoke, and moving from a start position along an axial direction of the yoke by magnetic attraction force generated in the yoke, wherein a diameter increasing portion whose diameter is increased from the start position toward a lower part in the axial direction is formed on an outer circumferential surface of the yoke, and the diameter increasing portion overlaps at least a part of a moving region of a lower-part side end portion of the plunger, and wherein an inner circumferential surface of the yoke guides the movement of the plunger and the yoke includes a contact member that regulates the movement of the plunger on the inner circumferential surface.