EP4353139A1

EP4353139A1 - A dishwasher comprising a rack

Info

Publication number: EP4353139A1
Application number: EP23200485.3A
Authority: EP
Inventors: Tugrul Basesme
Original assignee: Arcelik AS
Current assignee: Arcelik AS
Priority date: 2022-10-14
Filing date: 2023-09-28
Publication date: 2024-04-17

Abstract

The present invention relates to a dishwasher (1) comprising a body (2); a washing tub (3) which is disposed in the body (2) and wherein the washing process is performed; at least one rack (4) which is disposed in the washing tub (3) and whereon the kitchen items are placed; at least one spraying member (5) which sprays water onto the rack (4); a door (6) which is provided on the body and which has a closed position (K) where the washing tub (3) is completely isolated from the outside environment and an open position (A) where the user can access the washing tub (3) and the door (6) is parallel to the bottom of the washing tub (3); a pathway (7) which is provided on the door (6) and which enables the rack (4) to move outward from the inside of the washing tub (3) over the door (6) when the door (6) is in the open position (A); and a stopper (8) which extends from the bottom of the rack (4) towards the door (6) while the rack (4) moves outward from the washing tub (3) over the door (6) and which prevents the rack (4) from leaving the door (6).

Description

The present invention relates to a dishwasher comprising a rack whereon items to be washed are placed.
In dishwashers, racks are used for placing items to be washed into the dishwasher. Generally, two racks are placed in the dishwasher one above the other. The lower racks stay on the base of the washing tub when the door of the dishwasher is in the closed position. In order to load the dishes for washing and then to unload the same, the rack is pulled forward on the door such that the rack moves over the door which is parallel to the horizontal axis. If pulled forward rapidly, the lower rack comes out of the washing tub completely and falls to the ground, causing the items placed therein to be damaged. Therefore, stoppers extending from the bottom of the rack towards the door are developed. In particular, stoppers are known which extend from the rear-bottom part of the rack to the back of the door and prevent the rack from leaving the door. However, when the rack is stopped on the door, the user's access to the rack is limited, making it difficult to reach the items at the rear part of the rack.
The state of the art United States Patent Document No. US20090151758 discloses an additional stopper which is disposed on the two front wheels and which enables the rack to stop while moving over the door so as to prevent the same from falling to the ground, and also discloses an obstructive member which is disposed on the door.
The state of the art German Patent Document No. DE8506735 discloses a front wheel and a rear wheel each having a different radius and a stopper member which is provided on the side wall.
The aim of the present invention is the realization of a dishwasher wherein the lower rack, in which items to be washed are placed, can be moved safely, providing ease of use.
The dishwasher realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof, comprises a body; a washing tub which is disposed in the body; at least one rack which is disposed in the washing tub; at least one spraying member which sprays water onto the rack; a door which is provided on the body; and a stopper which is provided on the rack. The washing tub wherein the washing process is performed is disposed in the body. The racks are placed into the washing tub. The kitchen items are placed on the racks, water is delivered onto the kitchen items by means of the spraying member, and thus the cleaning process is performed. The door provided on the body has a closed position where the washing tub is completely isolated from the outside environment and an open position where the door is parallel to the bottom of the washing tub. The user pulls the rack towards over the door while loading and unloading the kitchen items. By means of a pathway provided on the door, the rack is enabled to move over the door. By means of a stopper extending from the rear and bottom of the rack to the lower edge of the door, the rack is prevented from leaving the door. Thus, the safety of the rack and the kitchen items thereon is ensured during loading and unloading.
The dishwasher of the present invention comprises the stopper which enables the rack to move outward along the length of the stopper when the stopper gets into contact with the lower edge of the door. As the stopper enables the rack to further move for the length of the stopper, the rack can move over the door for a distance equal to the length of the stopper. Thus, it becomes easier for the user to access the rear part of the rack and the safety of the rack is ensured.
In an embodiment of the present invention, the dishwasher comprises the stopper having a shaft with an L form at both ends thereof. By means of the L form, the stopper is enabled to limit the movement of the rack. The rack can further move over the door for the length of the shaft.
In an embodiment of the present invention, the dishwasher comprises at least one fixing member which is attached to the base of the rack and at least one channel which is provided on the fixing member. The shaft moves by sliding on the channel. Thus, the movement of the rack is ensured.
In an embodiment of the present invention, the dishwasher comprises the stopper having a first protrusion which is provided on the shaft and which extends from the lower edge of the rack to the lower edge of the door so as to bear against the lower edge of the door when the rack slides over the door and moves outward, and a first position wherein the shaft moves by sliding on the channel when the first protrusion gets into contact the lower edge of the door such that the rack further moves for the length of the shaft. When the stopper is in the first position, the first protrusion touches the lower edge of the door and the shaft on the channel under the rack starts to slide on the channel. When the first protrusion is on the lower edge of the door, the shaft slides along the channel for the length of the shaft. Thus, the rack is enabled to continue moving over the door.
In an embodiment of the present invention, the dishwasher comprises a second protrusion which is provided on the other end of the shaft, which bears against the fixing member while the shaft slides on the channel when the stopper is in the first position and the first protrusion is in contact with the lower edge of the door, and thus which stops the movement of the rack. The second protrusion extends so as not to get into contact with the lower edge of the door. The second protrusion just hits the fixing member and prevents the shaft from leaving the fixing member.
In an embodiment of the present invention, the dishwasher comprises a damping member which is provided along the lower edge of the door. Thus, when the stopper is in the first position, the first protrusion is enabled to get into contact with the bottom of the door move softly.
In an embodiment of the present invention, the dishwasher comprises the stopper having a second position wherein the first protrusion hits the rear wall of the washing tub such that the shaft slides on the channel when the rack is pushed into the washing tub and wherein the second protrusion moves away from the fixing member. When the rack is in the washing tub and the door is in the closed position, the stopper is in the second position.
In an embodiment of the present invention, the dishwasher comprises the first protrusion of which the surface in contact with the washing tub while the stopper shifts between the first position and the second position is coated with a material with high damping property. Thus, any noise and deformation are prevented which may be generated when the first protrusion hits the rear wall of the washing tub.
By means of the present invention, a dishwasher is realized, comprising a stopper which enables the rack to move over the door safely during the loading and unloading processes.
A dishwasher realized in order to attain the aim of the present invention is illustrated in the attached figures, where:

Figure 1 -: is the perspective view of the dishwasher.
Figure 2 -: is the perspective view of the rack.
Figure 3 -: is the perspective view of the fixing member on the rack.
Figure 4 -: is the perspective view of the rack on the door.

The elements illustrated in the figures are numbered as follows:

1-: Dishwasher
2-: Body
3-: Washing tub
4-: Rack
5-: Spraying member
6-: Door
7-: Pathway
8-: Stopper
9-: Shaft
10-: Fixing member
11-: Channel
12-: First protrusion
13-: Second protrusion
14-: Damping member
A-: Open position
K-: Closed position
B-: First position
I-: Second position

The dishwasher (1) comprises a body (2); a washing tub (3) which is disposed in the body (2) and wherein the washing process is performed; at least one rack (4) which is disposed in the washing tub (3) and whereon the kitchen items are placed; at least one spraying member (5) which sprays water onto the rack (4); a door (6) which is provided on the body and which has a closed position (K) where the washing tub (3) is completely isolated from the outside environment and an open position (A) where the user can access the washing tub (3) and the door (6) is parallel to the bottom of the washing tub (3); a pathway (7) which is provided on the door (6) and which enables the rack (4) to move outward from the inside of the washing tub (3) over the door (6) when the door (6) is in the open position (A); and a stopper (8) which extends from the bottom of the rack (4) towards the door (6) while the rack (4) moves outward from the washing tub (3) over the door (6) and which prevents the rack (4) from leaving the door (6). The kitchen items are placed on the racks (4) in the dishwasher (1). The cleaning process is performed by delivering water onto the rack (4) by means of the spraying member (5). The door (6) is in the closed position (K) to isolate the washing tub (3) from the outside environment during the washing process. The door (6) is in the open position (A) so as to enable the user to access the washing tub (3) during loading and unloading. During loading and unloading, the racks (4) are pulled out from the washing tub (3) so as to make it easier for the user to access the kitchen items. The lower rack (4) moves forward over the door (6) in a certain position by means of the pathway (7) provided on the door (6). The rack (4) is prevented from leaving the pathway (7) by means of a stopper (8). Thus, the safety of the rack (4) is improved.
The dishwasher (1) of the present invention comprises the stopper (8) which enables the rack (4) to move further along the length of the stopper (8) at the most when the stopper (8) gets into contact with the lower edge of the door (6). Upon getting into contact with the door (6), the stopper (8) enables the rack (4) to move outward from the washing tub (3) for a distance equal to the length of the stopper (8) in the horizontal plane. Thus, the rack (4) moves further over the door (6) for a distance equal to the length of the stopper (8). Thus, it becomes easier for the user to access the rear part of the rack (4), and the safety of the rack (4) is ensured.
In an embodiment of the present invention, the dishwasher (1) comprises the stopper (8) having a shaft (9) with an L form at both ends thereof. The stopper (8) comprises a shaft (9) in the horizontal plane with both ends thereof in the vertical plane. Thus, the shaft (9) is enabled to be attached to the rear edge of the door (6) and the rack (4) from both ends.
In an embodiment of the present invention, the dishwasher (1) comprises at least one fixing member (10) which is attached to the base of the rack (4) and at least one channel (11) which is provided on the fixing member (10) and wherein the shaft (9) enters so as to slide. The shaft (9) moves by sliding on the channel (11). The channel (11) can be on the fixing member (10) or can be in the form of rack (4) wires.
In an embodiment of the present invention, the dishwasher (1) comprises the stopper (8) having a first protrusion (12) which is provided on the shaft (9) and which extends from the lower edge of the rack (4) to the lower edge of the door (6) so as to get into contact with the lower edge of the door (6) when the rack (4) slides over the door (6) to be pulled out of the washing tub (3), and a first position wherein the shaft (9) slides on the channel (11) when the first protrusion (12) gets into contact the lower edge of the door (6) such that the rack (4) further moves for the length of the shaft (9). When the stopper (8) is in the first position (B), the first protrusion (12) touches the lower edge of the door (6) and the shaft (9) on the channel (11) under the rack (4) starts to slide on the channel (11). When the first protrusion (12) is on the lower edge of the door (6), the shaft (9) slides along the channel (11) for the length of the shaft (9). Thus, the rack (4) is enabled to continue moving over the door (6).
In an embodiment of the present invention, the dishwasher (1) comprises the stopper (8) having a second protrusion (13) which is provided on the other end of the shaft (9), which extends from the base of the rack (4) so as not to get into contact with the door (6) and which gets into contact with the fixing member (10) so as to prevent the shaft (9) from leaving the channel (11) as the shaft (9) slides on the channel (11) when the stopper (8) is in the first position (B). When the first protrusion (12) gets into contact with the lower edge of the door (6), the shaft (9) starts to slide on the channel (11). As the second protrusion (13) bears against the fixing member (10), the sliding of the shaft (9) is stopped. Thus, the rack (4) is prevented from leaving the door (6). The second protrusion (13) extends so as not to get into contact with the lower edge of the door (6). The second protrusion (13) just hits the fixing member (10) and prevents the shaft (9) from leaving the fixing member (10).
In an embodiment of the present invention, the dishwasher (1) comprises a damping member (14) which is provided on the lower edge of the door (6) and with which the first protrusion (12) gets into contact. By means of the damping member (14) provided on the lower edge of the door (6), the rack (4) continues to move smoothly when the first protrusion (12) gets into contact with the lower edge of the door (6). Thus, any contact-induced noise is prevented.
In an embodiment of the present invention, the dishwasher (1) comprises the stopper (8) having a second position (I) wherein the first protrusion (12) hits the rear wall of the washing tub (3) such that the shaft (9) slides on the channel (11) when the rack (4) is pushed into the washing tub (3) and wherein the second protrusion (13) moves away from the fixing member (10). When the rack (4) is pushed into the washing tub (3), the first protrusion (12) gets into contact with the rear wall of the washing tub (3) before the rack (4). After the first protrusion (12) gets into contact with the washing tub (3), the shaft (9) slides on the fixing member (10) such that the second protrusion (13) moves away from the fixing member (10) and the first protrusion (12) approaches the fixing member (10). Thus, the stopper (8) shifts into the second position (I). When the door (6) is in the closed position (K), the stopper (8) is in the second position (I).
In an embodiment of the present invention, the dishwasher (1) comprises the first protrusion (12) of which the part in contact with the washing tub (3) comprises a material with high damping property. The first protrusion (12) comprises a material with high damping property on the outer surface thereof so as to prevent the impact and sound problems which may occur upon getting into contact with the rear wall of the washing tub (3).
By means of the present invention, a dishwasher (1) is realized, wherein the safety of the rack (4) is ensured by means of the stopper (8) comprising a shaft (9) which as an L form at both ends and which moves by sliding under the rack (4). By means of the stopper (8), the rack (4) is enabled to move further for the length of the shaft (9) while the rack (4) is pulled out of the washing tub (3) during loading and unloading. Thus, the user can easily reach the kitchen items at the rear part of the rack (4).

Claims

A dishwasher (1) comprising a body (2); a washing tub (3) which is disposed in the body (2) and wherein the washing process is performed; at least one rack (4) which is disposed in the washing tub (3) and whereon the kitchen items are placed; at least one spraying member (5) which sprays water onto the rack (4); a door (6) which is provided on the body and which has a closed position (K) where the washing tub (3) is completely isolated from the outside environment and an open position (A) where the user can access the washing tub (3) and the door (6) is parallel to the bottom of the washing tub (3); a pathway (7) which is provided on the door (6) and which enables the rack (4) to move outward from the inside of the washing tub (3) over the door (6) when the door (6) is in the open position (A); and a stopper (8) which extends from the bottom of the rack (4) towards the door (6) while the rack (4) moves outward from the washing tub (3) over the door (6) and which prevents the rack (4) from leaving the door (6), characterized by the stopper (8) which enables the rack (4) to move further along the length of the stopper (8) at the most when the stopper (8) gets into contact with the lower edge of the door (6).
A dishwasher (1) as in Claim 1, characterized by a shaft (9) having an L form at both ends.
A dishwasher (1) as in Claim 2, characterized by at least one fixing member (10) which is attached to the base of the rack (4) and at least one channel (11) which is provided on the fixing member (10) and wherein the shaft (9) enters so as to slide.
A dishwasher (1) as in Claim 2 or Claim 3, characterized by the stopper (8) having a first protrusion (12) which is provided on the shaft (9) and which extends from the lower edge of the rack (4) to the lower edge of the door (6) so as to get into contact with the lower edge of the door (6) when the rack (4) slides over the door (6) to be pulled out of the washing tub (3), and a first position wherein the shaft (9) slides on the channel (11) when the first protrusion (12) gets into contact the lower edge of the door (6) such that the rack (4) further moves for the length of the shaft (9).
A dishwasher (1) as in any one of Claims 2 to 4, characterized by the stopper (8) having a second protrusion (13) which is provided on the other end of the shaft (9), which extends from the base of the rack (4) so as not to get into contact with the door (6) and which gets into contact with the fixing member (10) so as to prevent the shaft (9) from leaving the channel (11) as the shaft (9) slides on the channel (11) when the stopper (8) is in the first position (B).
A dishwasher (1) as in Claim 4 or Claim 5, characterized by a damping member (14) which is provided on the lower edge of the door (6) and with which the first protrusion (12) gets into contact.
A dishwasher (1) as in Claim 5 or Claim 6, characterized by the stopper (8) having a second position (I) wherein the first protrusion (12) hits the rear wall of the washing tub (3) such that the shaft (9) slides on the channel (11) when the rack (4) is pushed into the washing tub (3) and wherein the second protrusion (13) moves away from the fixing member (10).