Patent ID: 9740165
Date: 2017-08-22
CPC Classifications: B01D,G03G

Claim:
1. A filter frame for containing a dust collecting filter, comprising: a first frame portion, including a filter installation surface on which the filter is installed, and a first side surface standing up from a first side of the installation surface and a second side surface standing up from a second side opposing the first side of the installation surface and a third side surface standing up from a third side connecting the first side and the second side of the installation surface and a fourth side surface standing up from a fourth side opposing the third side of the installation surface, configured to form a containing portion that contains the filter, wherein the filter installation surface has an opening through which a first surface of the filter is exposed; a second frame portion configured to sandwich the filter with first frame portion, wherein the second frame portion has an opening through which a second surface of the filter is exposed; a connecting portion, provided on the fourth side surface, configured to connect the first frame portion and the second frame portion so as to be openable, closable; a first latching portion, provided on the first side surface, configured to latch the first frame portion and the second frame portion when the filter frame is closed, wherein the first latching portion is released when the first side surface is bent in an outside direction; a second latching portion, provided on the second side surface, configured to latch the first frame portion and the second frame portion when the filter frame is closed, wherein the second latching portion is released when the second side surface is bent in an outside direction; a third latching portion, provided on the third side surface, configured to latch the first frame portion and the second frame portion when the filter frame is closed, wherein the third latching portion is released when the third side surface is bent in an outside direction; a clearance portion provided between the third side surface and the second frame portion when the filter frame is closed, wherein it is accessible from the clearance portion to an inner surface of the third side surface; and an arm configured to connect the first side of the filter installation surface and the second side of the filter installation surface, wherein the arm connects a first position corresponding to the first latching portion and a second position corresponding to the second latching portion.