Dishwasher Having a Dishwashing Compartment Which Can Be Withdrawn From the Housing in the Manner of a Drawer

Abstract

The invention relates to a dishwasher having a substantially block-shaped housing and a washing tub. The housing includes a hanging cover and a front side having an opening. The washing tub includes a top having an opening and side walls having upper edges extending parallel to the housing cover. The washing tub is configured to be received and withdrawn -from the housing front side opening and to be fully inserted into the housing during a washing operation. A region of the washing tub bears against a region of the housing during the washing operation. The housing has at least one contact surface contoured to match a surface of the washing tub.

1 - 19 . (canceled) 
   
   
       20 . A dishwasher, comprising:
 a substantially block-shaped housing including
 a housing cover, and 
 a front side having an opening; and 
   a washing tub including
 a front wall, 
 a rear wall, 
 a top having an opening, and 
 side walls having upper edges extending parallel to the housing cover, 
 the washing tub configured to be received and withdrawn from the housing in a drawer-like manner and to be fully inserted into the housing during a washing operation, at least one region of the washing tub bearing against a region of the housing during the washing operation, 
   wherein, in at least a region of the upper edges and over approximately an entire length of the upper edges, at least one of: 1) an outer dimension of the washing tub decreases in width from front to rear and 2) an inner dimension of the washing tub increases in width from front to rear, and wherein the housing has at least one contact surface adapted to match a contour of at least one of the outer dimension and the inner dimension of the washing tub.   
   
   
       21 . The dishwasher as recited in  claim 20 , wherein the outer dimension of the washing tub decreases in width from front to rear, at least in the region of the upper edges over approximately the entire length of the upper edges, and wherein the upper edges of the washing tub includes seals configured to bear, during the washing operation, against a region of the housing, the region of the housing decreasing in width from front to rear. 
   
   
       22 . The dishwasher as recited in  claim 20 , wherein the outer dimension of the washing tub decreases in width from front to rear, at least in the region of the upper edges over approximately the entire length of the upper edges, and wherein the housing includes housing side walls, and further comprising seals disposed in inner corners formed by the housing side walls and the housing cover, a width of a region between contact surfaces of the seals decreasing from front to rear. 
   
   
       23 . The dishwasher as recited in  claim 21 , wherein the region of the upper edges is inclined inwardly with respect to the remainder of the side walls. 
   
   
       24 . The dishwasher as recited in  claim 23 , wherein the region of the upper edges is inclined inwardly and has a form of a bevel, the bevel provided on an outside of the upper edges, the bevel having a constant angle and increasing in depth from front to rear. 
   
   
       25 . The dishwasher as recited in  claim 20 , wherein the inner dimension of the washing tub increases in width from the front to the rear, at least in the region of the upper edges over approximately the entire length of the upper edges, and wherein the housing cover includes seals extending into an interior of the washing tub and having contact surfaces configured to match the contour of the washing tub so as to provide a sealing effect. 
   
   
       26 . The dishwasher as recited in  claim 25 , wherein the region of the upper edges is inclined outwardly with respect to the remainder of the side walls. 
   
   
       27 . The dishwasher as recited in  claim 26 , wherein the region of the upper edges is inclined outwardly and has a form of a bevel, the bevel provided on an inside of the upper edges, the bevel having a constant angle and increasing in depth from front to rear. 
   
   
       28 . A dishwasher, comprising:
 a substantially block-shaped housing including
 a housing cover, and 
 a front side having an opening; 
   a washing tub including
 a front wall, 
 a rear wall, 
 a top having an opening, and 
 side walls having upper edges extending parallel to the housing cover, 
 the washing tub configured to be received and withdrawn from the housing in a drawer-like manner and to be frilly inserted into the housing during a washing operation; and 
   a seal disposed on the housing, the seal bearing against the washing tub during the washing operation,   wherein, in at least a region of the upper edges and over approximately an entire length of the upper edges, at least one of: 1) an outer dimension of the washing tub decreases in width from front to rear and 2) an inner dimension of the washing tub increases in width from front to rear, and wherein the seal has at least one contact surface adapted to match a contour of at least one of the outer dimension and the inner dimension of the washing tub.   
   
   
       29 . A dishwasher, comprising:
 a substantially block-shaped housing including
 a housing cover, and 
 a front side having an opening; 
   a washing tub including
 a front wall, 
 a rear wall, 
 a top having an opening, and 
 side walls having upper edges extending parallel to the housing cover, the upper edges having seals disposed thereon, 
 the washing tub configured to be received and withdrawn from the housing in a drawer-like manner and to be fully inserted into the housing during a washing operation, the upper edges bearing toward at least one of the housing cover and a sealing surface parallel thereto during the washing operation so as to interpose the seals therebetween so as to bear the seals against the at least one of the housing cover and the sealing surface; and 
   a movement arrangement configured to move an upper edge of the seals relative to the upper edges of the side walls in a direction toward the housing cover when the washing tub is inserted into the housing.   
   
   
       30 . The dishwasher as recited in  claim 29 , wherein the housing includes side walls and a rear wall and wherein the movement arrangement includes guide ribs disposed on the side walls of the housing, the guide ribs including upper surfaces that slope downwardly from the housing rear wall to the housing opening. 
   
   
       31 . The dishwasher as recited in  claim 29 , wherein the housing includes side walls and a rear wall and wherein the movement arrangement includes rollers disposed one behind the other on the housing side walls, the rollers axes disposed along lines sloping downwardly from the housing rear wall to the housing opening. 
   
   
       32 . The dishwasher as recited in  claim 29 , wherein the housing includes side walls and a rear wall and wherein the movement arrangement includes rollers disposed one behind the other on the housing side walls, the diameter of the rollers increasing toward the housing rear wall. 
   
   
       33 . The dishwasher as recited in  claim 30 , wherein the guide ribs have an inclination of about 1°. 
   
   
       34 . The dishwasher as recited in  claim 31 , wherein the lines have an inclination of about 1°. 
   
   
       35 . The dishwasher as recited in  claim 30 , wherein the seals include a portion with a C-shaped cross-section that embraces the ribs. 
   
   
       36 . The dishwasher as recited in  claim 31 , wherein the seals include a portion with a C-shaped cross-section that embraces the rollers. 
   
   
       37 . A dishwasher, comprising:
 a substantially block-shaped housing including
 a housing cover, and 
 a front side having an opening; 
   a washing tub including
 a front wall, 
 a rear wall, 
 a top having an opening, 
 lateral projections, the lateral projections extending horizontally in a position of use and sloping downwardly from the rear wall to the front wall, and 
 side walls having upper edges extending parallel to the housing cover, 
 the washing tub configured to be received and withdrawn from the housing in a drawer-like manner and to be filly inserted into the housing during a washing operation; and 
   lateral seals disposed on the housing, the lateral seals bearing against the washing tub during the washing operation, the lateral seals having L-shaped portions with legs extending in a position of use, horizontally under the lateral projections of the washing tub.   
   
   
       38 . The dishwasher as recited in  claim 37 , wherein the housing includes housing sidewalls and wherein the lateral projections are formed by wedge-shaped enlargements directed outwardly toward the housing side walls with respect to a remainder of the washing tub. 
   
   
       39 . The dishwasher as recited in  claim 38 , wherein the lateral projections have an inclination of about 1°. 
   
   
       40 . The dishwasher as recited in  claim 38 , wherein the lateral seals have an integrally formed sealing lip that overlaps the upper edges of the sidewalls of the washing tub. 
   
   
       41 . The dishwasher as recited in  claim 37 , wherein the housing includes housing side walls and wherein the lateral seals are disposed in corners formed by the housing cover and the housing side walls.