Patent ID: 9035596
Filing Date: 2015-05-19
Classification: B25F,H01M,Y02E

Abstract:
1. A battery device that functions as a power source of a tool main body and is attachable to a body of a user, the battery device comprising: a battery housing that is capable of removably receiving at least one rechargeable battery and capable of being electrically connected to the at least one battery; an adaptor that is capable of being electrically connected to the tool main body; and a cable electrically connecting the battery housing and the adaptor, wherein the battery housing comprises a housing body that is constructed to be attached to the body of the user and is capable of receiving the at least one battery therein, and a cover member that is openably and closably attached to the housing body, wherein the housing body and the at least one battery are connected to each other via a male-female engagement device, wherein the male-female engagement device has a male hook mechanism formed in the at least one battery and a female hook mechanism formed in the housing body and having a female hook portion, wherein the male hook mechanism is composed of a male hook member and a biasing spring that biases the male hook member toward the female hook portion, and wherein the male hook member has an engagement release portion that is positioned so as to be exposed when the cover member is opened relative to the housing body.