Patent ID: 7661887
Filing Date: 2010-02-16
Classification: G02B

Abstract:
1. A shutter assembly mounted on a first end side of an optical adapter to which a first optical cable with an optical connector is detachably coupled from the first end side and a second optical cable is coupled from a second end side, the optical adapter being configured so that first and second end sides of an inner space defined by a bottom wall, a pair of side wall and an upper wall respectively form first and second accommodating sections that respectively accept the first and second optical cables, and a hollow sleeve into which ferrules of the first and second optical cables are inserted is arranged on an intermediate portion of the inner space, the shutter assembly comprising: a shutter housing which is mounted on the first end side of the optical adapter so as to surround the optical adapter, the shutter housing including a bottom-surface section, a pair of side-surface sections and an upper-surface section respectively brought into contact with the outer peripheral surfaces of the bottom wall, the pair of side walls and the upper wall of the optical adapter in a state of being mounted on the optical adapter; a shutter member coupled in a swingable manner with a first-end-side edge of the bottom-surface section through a pivot shaft so as to open or close a first-end-side opening of the shutter housing defined by first-end-side edges of the upper-surface section, the pair of side-surface sections and the bottom-surface section; and a coil spring which energizes the shutter member in such a direction that the shutter member closes the first-end-side opening of the shutter housing, wherein the shutter member includes a shutter main body that closes the first-end-side opening of the shutter housing, and a pair of first and second bearing parts which are integrally formed on a proximal-end-side surface of the shutter main body and through which the pivot shaft is inserted, the second bearing part is formed with a guide groove that is opened at an opposing end surface facing to the first bearing part and that is along a direction orthogonal to an axial-line direction of the pivot shaft, and the guide groove has an opening width that is larger than a diameter of a bearing hole of the second bearing part at the opposing end surface and that becomes narrow as it moves away from the opposing end surface in a direction opposite to the first bearing part.