Patent ID: 7483241
Filing Date: 2009-01-27
Classification: G11B

Abstract:
1. A recording tape cartridge comprising: a casing that rotatably accommodates a single reel around which recording tape is wound; an opening formed in the casing for pulling out the recording tape; a door that turns centered on a support axis which spans in the direction of the height of the casing, and which opens and closes the opening; and a torsion spring that urges the door in the closed direction of the opening, the door comprising a first guard portion set on the upper end portion of the door in the height direction having provided therein a first through-hole through which the support axis is inserted, and a second guard portion set on the bottom end portion of the door in the height direction having provided therein a second through-hole through which the support axis is inserted, wherein the torsion spring is accommodated between the first guard portion and the second guard portion.