Patent ID: 6199689
Filing Date: 2001-03-13
Classification: G11B

Abstract:
A cartridge holder comprising:a back portion provided at an inner surface thereof with a plurality of cartridge gripping parts;a pair of lid portions pivotally connected to opposed sides of said back portion through respective major hinge portions;lock means including a catching portion provided on a free end of one of said lid portions and a caught portion provided on a free end of the other of said lid portions, said catching and caught portions being brought into engagement with each other when said lid portions are pivoted about their respective major hinge portions in a direction to close the holder; anda plurality of extra hinge portions defined by said back portion, each extra hinge portion being provided between each adjacent two of said cartridge gripping parts and wherein the thickness of the extra hinge portions increases as the position where the extra hinge portion is located nears the center of said back portion and in which the thickness of the major hinge portions is the smallest.