Patent ID: 7512334

Claim:
A dust excluding packing sheet comprising: a flexible sheet member comprising; a dust excluding packing; an auxiliary piece installed to be connected to the dust excluding packing, wherein a cut line can separate the flexible sheet member into the dust excluding packing and the auxiliary piece; and an adhering layer held by a back face of the sheet member, the adhering layer crossing over the cut line of the flexible sheet, the adhering layer overlapping an exfoliating sheet so that the flexible sheet member can be temporarily held by the exfoliating sheet, wherein, when one of the dust excluding packing and the auxiliary piece is exfoliated from the exfoliating sheet, the other one is exfoliated from the exfoliating sheet by following the one by an adhering property of the adhering layer, wherein the dust excluding packing is divided into a first dust excluding packing and a second dust excluding packing, wherein the first dust excluding packing having a ring-like shape is interposed at a portion of overlapping a base edge portion of an first opening and a display facing the first opening formed at a cabinet of an electrical apparatus, and wherein the second dust excluding packing having a ring-like shape is interposed at a portion of overlapping a base edge portion of an second opening and a lens barrel facing the second opening, which are formed at the cabinet of the electrical apparatus, wherein the auxiliary piece is divided into a first auxiliary piece and a second auxiliary piece, wherein the first auxiliary piece having a ring-like shape is installed to be connected to the first dust excluding packing, wherein the first auxiliary piece is disposed on an inner side of the first dust excluding packing, wherein the second auxiliary piece is installed to be connected to the second dust excluding packing, wherein the second auxiliary piece is disposed on an inner side of the second dust excluding packing, wherein the second dust excluding packing is arranged to be apart from the first auxiliary piece with a gap therebetween at a region surrounded by the first auxiliary piece, wherein the first auxiliary piece has a cut line which divide the first auxiliary piece by crossing the first auxiliary piece, and wherein the second auxiliary piece has a break line comprising a cut line in a shape of a folded to bend line extended in a direction of crossing the second auxiliary piece.