Drum-type washing machine

Abstract

A front-loading-type washing machine of the invention includes a rotary drum; a water tub; a motor; a filter case that communicates with the water tub via a drain pipe connected to the bottom of the water tub and has a filter provided therein; a circulating pump that communicates with the filter case via a circulating water suction pipe connected to the filter case; a channel that communicates with the circulating pump via a circulating water discharge pipe connected to the circulating pump, and is formed on the front inner side of the water tub; a plurality of jetting ports that are provided on the inner peripheral side of the channel and discharge washing water into the water tub; and a control device. The opening area of the jetting port provided at the farthest position from a connecting portion between the circulating water discharge pipe and the channel is larger than the opening area of the jetting port provided at the nearest position from the connecting portion.

1 . A front-loading-type washing machine comprising:
 a rotary drum that is formed in a shape of a bottomed cylinder;   a water tub that rotatably includes the rotary drum;   a motor that rotationally drives the rotary drum;   a filter case that communicates with the water tub via a drain pipe connected to a bottom of the water tub, and has a filter provided therein;   a circulating pump that communicates with the filter case via a circulating water suction pipe connected to the filter case;   a channel that communicates with the circulating pump via a circulating water discharge pipe connected to the circulating pump, and is formed on a front inner side of the water tub;   a plurality of jetting ports that are provided on an inner peripheral side of the channel, and discharge washing water into the water tub; and   a control device that controls steps of at least washing, rinsing, and spin-drying,   wherein an opening area of the jetting port provided at the farthest position from a connecting portion between the circulating water discharge pipe and the channel is larger than an opening area of the jetting port provided at the nearest position from the connecting portion.   
     
     
         2 . The front-loading-type washing machine of  claim 1 ,
 wherein at least the opening area of the jetting port provided at the farthest position from the connecting portion is the largest among the plurality of jetting ports.   
     
     
         3 . The front-loading-type washing machine of  claim 1 ,
 wherein the opening areas of the jetting ports are larger in an order of a distance from the connecting portion.   
     
     
         4 . The front-loading-type washing machine of  claim 1 ,
 wherein the jetting ports provided at the same distance from the circulating water discharge pipe have a same opening area.   
     
     
         5 . The front-loading-type washing machine of  claim 1 ,
 wherein the opening areas of the jetting ports are larger than opening portions that constitute the filter.   
     
     
         6 . The front-loading-type washing machine of  claim 5 ,
 wherein the opening portions are constituted by circulation-side opening portions provided on a circulating pump side and drain-side opening portions provided on a drain pump side, and   wherein the drain-side opening portions are larger than the circulation-side opening portions.   
     
     
         7 . The front-loading-type washing machine of  claim 4 ,
 wherein the opening areas of the jetting ports are larger than opening portions that constitute the filter.   
     
     
         8 . The front-loading-type washing machine of  claim 7 ,
 wherein the opening portions are constituted by circulation-side opening portions provided on a circulating pump side and drain-side opening portions provided on a drain pump side, and   wherein the drain-side opening portions are larger than the circulation-side opening portions.