Patent ID: 9671568
Date: 2017-06-06
CPC Classifications: G02B

Claim:
1. An optical connector plug with a shutter configured to be fitted to an optical connector adapter, the optical connector plug comprising: a plug frame configured to hold a ferrule; a front housing having a hollow quadratic shape, the front housing being arranged so as to be slidable on the plug frame and including a shutter having a flat portion and curved portion with a boundary portion located therebetween, the shutter being configured to open and close in association with a movement of the ferrule at a distal end side opening of the front housing, the flat portion of the shutter being fixed and retained, in surface-to-surface contact, to an inner bottom of the front housing with a retaining mechanism, the flat portion being situated at a rear of the shutter, the curved portion being situated at a front of the shutter, and the boundary portion being situated between the flat portion and the curved portion; a locking housing fixedly and integrally connected to the plug frame and configured to be fitted into and locked with the optical connector adapter; and a spring configured to bias the front housing forward, wherein the plug frame relatively moves forward by a rearward movement of the front housing so that a front opening edge portion of the plug frame expands the shutter, which is biased to block an optical axis of the distal end side opening of the front housing, into a straight shape such that the optical axis of the distal end side opening is not blocked, and the shutter includes a slit extending from the flat portion across the boundary portion to the curved portion in order to prevent a center portion of the shutter from being deformed to have a protrusion shape in a state in which the shutter is expanded when the optical connector plug is fitted into the optical connector adapter.