Patent ID: 6112894
Filing Date: 2000-09-05
Classification: G11B

Abstract:
A disc medium accommodating case comprising:a disc case bottom plate member having a diameter that is larger than the outer diameter of the disc media,a stacking column that is embedded substantially at the center of the case bottom plate member in an erect position and which has a diameter that is smaller than the inner diameter of the chucking hole of the disc media,a protective cover member formed as a truncated case and adapted to be placed on the case bottom plate member, anda cap for fastening the protective cover member to the case bottom plate member through the intermediation of the stacking column,wherein a column insertion hole into which the stacking column can be inserted is provided at the center of the case bottom plate member, and a downwardly extending flange receiving portion is formed at the center of the back side of said case bottom plate member,wherein a flange portion having a detent means extends from the base end of the stacking column and an engagement portion to be engaged with the cap is provided at the forward end thereof, andwherein the stacking column is inserted into the column insertion hole from the back side of the case bottom plate member to join the flange portion with the flange receiving portion provided on the back side of the case bottom plate member.