Tape cartridge

Abstract

The invention relates to a break-resistant tape cartridge. Reinforcing ribs on the housing and door of the cartridge protect against breakage. The reel and brake of the cartridge employ short teeth with widened roots that strengthen the teeth and reduce shear forces which might cleave the teeth from the reel or the brake. An extra lobe on the hinge of the door reinforces the hinge. The door and the housing are made of a plastic that lacks glass fibers or has a reduced glass fibers content. Furthermore, the plastic without glass fibers improves wear-resistance, and reduces production of debris that can damage the tape and devices that read the tape. The result is a cartridge which is less prone to breakage and wear. The reel may be used in applications other than tape cartridges.

Dependencies are inferred from the claim text.