Patent ID: 8628057
Filing Date: 2014-01-14
Classification: H01M,Y02E

Abstract:
1. A locking mechanism for a valve device, the valve device including a valve body for opening and closing a fluid path, comprising: a disk having a rotational shaft rotatable together with a valve body driving shaft for driving the valve body and having a cutout groove formed on an outer circumferential face thereof; a ball disposed in said cutout groove; a body member comprising a holder member comprising an engaging face which is disposed in an opposed relationship to a second end face of said disk in the axial direction, the holder member having a diameter gradually decreasing toward said ball and being engageable with said ball; and a spring member configured to bias said holder member toward said ball, wherein said ball is clamped by and among the engaging face of said holder member, the axial direction restriction face and the inner circumferential face so that a rotational direction position of the rotational shaft is retained, and wherein the locking mechanism is capable of retaining the valve body at a predetermined opened position.