Drum type washing machine

Abstract

A drum type washing machine of the present invention includes a cylindrical rotary drum with a bottom that has a first opening in the front side, a water tub with a second opening corresponding to the first opening, a motor for rotating the rotary drum, and a water circulating passage for pouring out washing water to a circulating passage connected to the water tub and pouring in the washing water to the rotary drum by a circulating pump so as to circulate the washing water. The rotary drum is installed in the water tub such that its rotating axis direction is set horizontal or tilted downward from the front to the back, which is the bottom part, with respect to the horizontal direction. The water circulating passage includes a headrace where the washing water passes, a nozzle provided in the headrace for discharging the washing water, and a flow path connected to the nozzle for discharging the washing water discharged from the nozzle into the rotary drum. The headrace is configured with a front wall of the water tub and a cover attached to the front wall of the water tub. The nozzle is configured between the cover and the front wall of the water tub.

1 . A drum type washing machine comprising:
 a cylindrical rotary drum with a bottom and a first opening in a front side;   a water tub with a second opening corresponding to the first opening, the rotary drum being installed in the water tub such that a rotating axis direction is set horizontal or tilted downward from front to back, which is a bottom part, with respect to the horizontal level and a horizontal direction;   a motor for rotating the rotary drum; and   a water circulating passage for circulating washing water in the water tub by pouring out the washing water to a circulating passage connected to the water tub and pouring in the washing water to the rotary drum using a circulating pump, the water circulating passage including:
 a headrace where the washing water passes; 
 a nozzle provided in the headrace for discharging the washing water; 
 and a flow path connected to the nozzle for discharging the washing water discharged from the nozzle into the rotary drum, 
   wherein   the headrace is configured with a front wall of the water tub and a cover attached to the front wall of the water tub, and   the nozzle is configured between the cover and the front wall of the water tub.   
     
     
         2 . The drum type washing machine of  claim 1 , wherein
 the nozzle is opened to the flow path in a predetermined circumferential range, so as to discharge the washing water toward a central rotating axis direction of the rotary drum.   
     
     
         3 . The washing machine of  claim 1 , wherein
 the nozzle guides the washing water from the flow path to a jet hole for pouring the washing water into the rotary drum.   
     
     
         4 . The drum type washing machine of  claim 3 , wherein
 the jet hole is formed between an outer face of a front wall of the rotary drum and an inner face of the front wall of the water tub, the jet hole pouring the washing water into the rotary drum toward a back side and a central axis direction of the rotary drum.   
     
     
         5 . The drum type washing machine of  claim 1 , wherein
 an inner face of the front wall of the water tub forming the flow path has a curved face that is curved toward the rotary drum.   
     
     
         6 . The drum type washing machine of  claim 1 , wherein
 an inner face of the front wall of the water tub forming the flow path has a tilt face that is tilted toward the rotary drum.   
     
     
         7 . The drum type washing machine of  claim 1 , wherein
 the nozzle is one of a plurality of nozzles provided in the headrace.   
     
     
         8 . The drum type washing machine of  claim 7 , wherein
 at least one of the plurality of nozzles is provided in each of the left side and the right side of the headrace with respect to a line passing the center of the opening of the rotary drum, the line being perpendicular to an installation face.   
     
     
         9 . The drum type washing machine of  claim 1 , wherein the headrace and the nozzle are respective ones of a plurality of headraces and a plurality of nozzles. 
     
     
         10 . The drum type washing machine of  claim 9 , wherein
 the plurality of nozzles are disposed at the left and right ends of the headrace with respect to a line passing the center of the opening of the rotary drum, the line being perpendicular to an installation face.   
     
     
         11 . The drum type washing machine of  claim 8 , wherein
 the plurality of nozzles have at least two types of positional angles, respectively, with respect to a line passing the center of the opening of the rotary drum, the line being perpendicular to an installation face.   
     
     
         12 . The drum type washing machine of  claim 1 , wherein
 a rear face of the front wall of the water tub near a plurality of nozzles is configured with at least two types of shapes.   
     
     
         13 . The drum type washing machine of  claim 1 , wherein
 an expanded portion is provided on the front wall of the water tub configuring the headrace, the expanded portion protruding outward from the washing machine.   
     
     
         14 . The drum type washing machine of  claim 1 , wherein
 an expanded portion is provided on the cover configuring the headrace, the expanded portion protruding inward to the washing machine.   
     
     
         15 . The drum type washing machine of  claim 1 , wherein
 the headrace is disposed in a circumferential direction with respect to the center of a circle formed by the opening of the rotary drum.   
     
     
         16 . The drum type washing machine of  claim 15 , wherein
 the headrace is disposed extending in a left and right direction, as viewed toward the opening of the rotary drum.   
     
     
         17 . The drum type washing machine of  claim 1 , wherein
 the cover covers a connecting space of a connecting part between a pipe from the circulating pump to the headrace and the headrace.   
     
     
         18 . The drum type washing machine of  claim 1 , wherein
 the headrace is configured with the cover and an inner face of the front wall of the water tub, and a sealing material in between.   
     
     
         19 . The drum type washing machine of  claim 1 , wherein
 the headrace is configured by welding the cover and an inner face of the front wall of the water tub.   
     
     
         20 . The drum type washing machine of  claim 10 , wherein
 the plurality of nozzles have at least two types of positional angles, respectively, with respect to a line passing the center of the opening of the rotary drum, the line being perpendicular to an installation face.