Tape cassette including a locking slider

A tape cassette comprising:

• a housing including a pair of reels carrying a tape so as to expose the tape in front of said housing;
• a slider attached to said housing so as to be slidable forwardly and rearwardly along a direction perpendicular to a tape extending direction, said slider having a recess into which an engaging member of a magnetic recording and reproducing apparatus for sliding said slider is allowed to insert, the slider sliding rearwardly in accordance with an insertion of the engaging member into the recess rearward with respect to the housing:
• a front cover supported by said slider and by said housing so as to cover the tape;
• a moving mechanism for sliding said front cover away from the tape while rotating said front cover so as to expose the tape, in accordance with a movement of said slider away from the tape;
• and
• a locking member attached to said slider to lock said hosing during loading so as to prohibit said slider from sliding rearwardly, said locking member unlocking said housing by insertion of the engaging member into the recess of the slider;
• and
• wherein said housing includes a pair of projecting parts disposed in opposite side portions along the tape extending direction and an opening defined by the projecting parts so as to allow loading posts to be inserted therein in the opposite direction to a direction of the rotation of the front cover for exposing the tape;
• said slider includes a pair of surfaces, each covering a side of the opening into which said loading posts are inserted and a side surface of the corresponding projecting part;
• and said locking member is provided in a pair, each of said locking members being located between the corresponding surface of said slider and the corresponding projecting part;
• and
• wherein each of said locking members includes a locking part projected toward the corresponding projecting part;
• each projecting part has a first guide groove with which the locking part is engaged so as to be slid in a sliding direction of said slider;
• and the first guide groove has a recess which the locking part engages so as to prohibit said slider from sliding with respect to said housing.