CN113074492B

CN113074492B - Household appliance

Info

Publication number: CN113074492B
Application number: CN202010008235.0A
Authority: CN
Inventors: 程伟; 于健
Original assignee: BSH Bosch und Siemens Hausgeraete GmbH; BSH Hausgeraete GmbH
Current assignee: BSH Hausgeraete GmbH
Priority date: 2020-01-03
Filing date: 2020-01-03
Publication date: 2024-01-12
Anticipated expiration: 2040-01-03
Also published as: EP3845845A1; CN113074492A

Abstract

A household appliance, comprising: a storage chamber having a pick-and-place port; a drawer having a first sliding portion, the drawer being located within the storage chamber and being capable of being pulled out of or pushed back into the storage chamber; and a rail located within the storage chamber, the rail having a chute along which the first slide is adapted to slide; wherein the chute includes a chute portion inclined in a pull-out direction of the drawer toward a sinking direction of the drawer. The scheme provided by the invention can effectively reduce the sinking amount when the drawer is pulled out of the storage room, and avoid the damage caused by the mutual collision between the parts of the household appliance.

Description

Household appliance

Technical Field

The embodiment of the invention relates to the technical field of household appliances, in particular to a household appliance.

Background

For the purpose of zoned storage, ease of operation, etc., household appliances are often provided with one or more drawers which are supported in the household appliance by sliding rails and which can be pulled out or pushed back along the sliding rails.

However, when the drawer is pulled out to the maximum distance of travel during use, the existing drawer and slide rail system for household appliances causes the drawer front to incline downward and sink because the center of gravity of the drawer is already beyond the front end of the slide rail and the rear end of the drawer is spaced from the slide rail.

This sinking phenomenon is more serious if the drawer carries more storage. The excessive sinking of the front end of the drawer can cause the collision between the drawer and other parts of the household appliance positioned below the drawer, thereby affecting the normal use of the household appliance.

Disclosure of Invention

It is an object of embodiments of the present invention to provide an improved household appliance.

Accordingly, an embodiment of the present invention provides a home appliance including: a storage chamber having a pick-and-place port; a drawer having a first sliding portion, the drawer being located within the storage chamber and being capable of being pulled out of or pushed back into the storage chamber; and a rail located within the storage chamber, the rail having a chute along which the first slide is adapted to slide; wherein the chute includes a chute portion inclined in a pull-out direction of the drawer toward a sinking direction of the drawer.

With the present embodiment, by providing the chute portion inclined to the sinking direction of the drawer at the front end of the guide rail, it is possible to reduce the sinking amount of the front end when the drawer is pulled out. The reduced amount of sinking is advantageous in order to avoid the front end of the drawer colliding with other parts of the household appliance when the drawer is pulled out. The front end of the guide rail is one end close to the storage chamber taking and placing opening.

Optionally, the chute portion has an upper chute wall that is inclined in the pull-out direction toward the sinking direction. When the first sliding part slides to the front end of the guide rail along the pulling-out direction, the front end of the drawer sinks under the action of gravity, and the first sliding part synchronously moves in the direction opposite to the sinking direction. The distance of upward movement of the first sliding part is reduced by the restriction of the declining upper groove wall, so that the downward declining distance of the front end of the drawer is also reduced.

Optionally, the upper groove wall is linear, arc-shaped or step-shaped. Specifically, when the upper groove wall is in a linear shape, the whole movement of the drawer during the period that the drawer is pulled out of the storage chamber is smooth, and a user does not feel obvious clamping.

Optionally, the chute has a substantially constant cross section to ensure that the first sliding portion can slide smoothly along the chute, and to facilitate reducing mold complexity and optimizing manufacturing processes.

Optionally, the guide rail comprises a stop structure adapted to stop the drawer after the drawer has been pulled out to a predetermined extent, the first slide being located at the chute portion when the drawer is stopped. Therefore, the maximum movement travel of the drawer in the pulling-out direction is limited by the stop structure, so that the drawer is prevented from being completely pulled out of the storage chamber.

Optionally, when the drawer is stopped, the first sliding portion abuts against an upper groove wall of the chute portion, and the drawer is supported on a second sliding portion located in front of the chute portion. Thus, the front end of the drawer naturally sinks and the first sliding part synchronously and reversely swings up by taking the second sliding part as a fulcrum. In this process, since the chute portion is inclined in the pull-out direction toward the sinking direction, the reversely tilted first slide portion can earlier abut against the upper groove wall of the chute portion. Further, the first sliding portion and the chute portion which are abutted against each other can have an effect of preventing the front end of the drawer from continuing to sink. In addition, the first sliding part can be propped against the chute part only by tilting reversely for a small stroke, so that the sinking amount of the front end of the drawer can be effectively reduced.

Optionally, along the pull-out direction of the drawer, a distance from an intersection point of the chute portion and other parts of the chute to the stop structure is greater than a distance from the first sliding portion to the stop portion of the drawer, wherein the stop portion of the drawer is adapted to cooperate with the stop structure to stop the drawer. Therefore, the first sliding part is positioned at the chute part when the drawer is stopped, so that the aim of reducing the sinking amount of the front end of the drawer is fulfilled.

Optionally, the inclined groove portion is inclined to the sinking direction by an inclination angle of 3 degrees to 10 degrees in the pull-out direction, and/or a length of the inclined groove portion in the pull-out direction of the drawer is at least one third of a length of the inclined groove in the pull-out direction of the drawer. Through the declining angle of rational design chute portion and the length of chute portion for when realizing reducing the effect of sinking volume, ensure that the user can not produce obvious sense of being in a poor position when pulling the drawer, optimize user experience.

Optionally, the guide rail includes an inlet section located at a front end of the chute in a pull-out direction of the drawer, the inlet section being located in front of the chute portion, at least one of an upper or lower chute wall of the inlet section being inclined in a direction gradually away from the other of the upper or lower chute wall in the pull-out direction of the drawer. The inlet section is in a horn mouth shape, so that the first sliding part of the drawer can be conveniently installed in the sliding groove, and the drawer can be conveniently assembled.

Optionally, the first sliding portion includes a first roller rotatably disposed on the drawer. Therefore, the first roller is suitable for supporting the drawer to roll on the sliding groove so as to avoid dry friction between the drawer and the sliding groove, and a user can pull the drawer more smoothly.

Optionally, the chute comprises a horizontal section located behind the chute section in the pull-out direction of the drawer, the lower groove wall of the horizontal section being parallel to the horizontal direction. Thereby, the horizontal section is adapted to support the drawer to be pulled out or pushed back into the storage chamber substantially in the horizontal direction and to guide the drawer to move to the chute portion when the drawer is pulled out.

Optionally, the rear end of the sliding groove along the pull-out direction of the drawer is provided with an inclined part, and the inclined part is inclined towards the sinking direction along the push-back direction of the drawer. Thus, the drawer pushed back to the inclined portion along the chute has a tendency to continue to move automatically into the storage compartment, so that the drawer can move automatically to the final position after being pushed back to a predetermined extent.

Optionally, at least part of the travel of the first sliding part in the chute part is in contact with the upper groove wall of the chute part, so that the rear end of the drawer is limited to continue to tilt upwards, and the first sliding part acts on the front end of the drawer to play a role in reducing the sinking amount.

Optionally, the sliding groove is provided with an opening facing the drawer, and the first sliding part extends into and is supported on the sliding groove from the opening, so that the first sliding part can effectively support the drawer to slide along the sliding groove.

Drawings

FIG. 1 is a partial schematic view of a home appliance according to an embodiment of the present invention;

FIG. 2 is a schematic view of a guide rail of the home appliance of FIG. 1;

FIG. 3 is a side view of the guide rail of FIG. 2;

FIG. 4 is a schematic view of the drawer of the home appliance of FIG. 1 pushed back into the storage compartment along the guide rail of FIG. 2;

FIG. 5 is a schematic view of the drawer of the home appliance of FIG. 1 pulled out of the storage compartment along the guide rail of FIG. 2;

in the accompanying drawings:

1-a household appliance; 10-a storage room; 101-a taking and placing port; 11-drawers; 11 a-front end of drawer; 11 b-rear end of drawer; 110-a first slide; 111-a first roller; 112-stop; 12, a guide rail; 12 a-the front end of the guide rail; 12 b-the rear end of the rail; 120-sliding grooves; 121-a chute section; 122-opening; 123-mounting holes; 124-upper groove wall; 125-stop structure; 126-a second slide; 127-second roller; 128-pivot part; 129-inlet section; 129 a-the upper groove wall of the inlet section; 129 b-the lower groove wall of the inlet section; 130-horizontal segment; 130 b-lower groove wall of horizontal segment; 131-inclined portion; 131 b-lower groove wall of the inclined portion; the distance from the junction point of the L1-chute part and the other part of the chute to the stop structure; l2-distance from the first sliding part to the stopping part; an inclination angle at which the alpha-chute portion is inclined in the pull-out direction toward the sinking direction; x-width direction of the household appliance; y-depth direction of the household appliance; z-height direction of the household appliance.

Detailed Description

As described in the background art, when the drawer of the existing household appliance is pulled out of the storage room, the front end of the drawer is greatly submerged under the action of gravity, and is easily collided with other parts of the household appliance to cause damage.

To solve the above technical problems, an embodiment of the present invention provides a home appliance, including: a storage chamber having a forward opening; a drawer having a first sliding portion, the drawer being located within the storage chamber and being capable of being pulled out of or pushed back into the storage chamber; and a rail located within the storage chamber, the rail having a chute along which the first slide is adapted to slide; wherein the chute includes a chute portion inclined in a pull-out direction of the drawer toward a sinking direction of the drawer.

With the present embodiment, by providing the chute portion inclined to the sinking direction of the drawer at the front end of the guide rail, it is possible to reduce the sinking amount of the front end when the drawer is pulled out. The reduced amount of sinking is advantageous in order to avoid the front end of the drawer colliding with other parts of the household appliance when the drawer is pulled out. Wherein the front end of the guide rail is an end close to the opening of the storage chamber.

In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

Fig. 1 is a partial schematic view of a home appliance according to an embodiment of the present invention.

To more clearly illustrate this embodiment, fig. 1 is only exemplary of the area of the drawer of the household appliance.

The household appliance according to this embodiment may be a refrigerator/freezer, a dishwasher, a wardrobe, etc.

Specifically, referring to fig. 1, a home appliance 1 may include: a storage chamber 10, the storage chamber 10 having a forward access port 101.

Further, the home appliance 1 may further include: the drawer 11 has a first sliding portion 110 (as shown in fig. 4 and 5), and the drawer 11 is located in the storage compartment 10 and can be pulled out or pushed back into the storage compartment 10.

The width direction of the household appliance 1 is referred to as the x direction, the depth direction is referred to as the y direction, and the height direction is referred to as the z direction. The drawer 11 may be pulled out of or pushed back into the storage compartment 10 in the y-direction. The forward access opening 101 provided in the storage compartment 10 is an access opening 101 provided in the front side of the household appliance 1 in the drawing direction of the drawer 11, wherein the front side of the household appliance 1 is a side facing the user in use, and the front side is a y direction in fig. 1.

The drawer 11 pushed back to the storage compartment 10 in the reverse direction of y is adapted to close the access opening 101 of the storage compartment 10. The drawer 11 pulled out of the storage chamber 10 in the y-direction is adapted to expose the access opening 101, and the drawer 11 may have an upward opening (not shown) from which a user can access the stored items placed in the drawer 11, or from which the stored items can be placed in the drawer 11.

In one variation, the drawer 11 may be a drawer door slidably supported on the rail 12 and adapted to be pushed and pulled to open or close the access opening 101 of the storage compartment 10. When the access port 101 is opened, the stored article can be placed in or taken out of the cavity exposed by the access port 101.

Further, referring to fig. 2 and 3, the home appliance 1 may further include a guide rail 12, the guide rail 12 being located in the storage compartment 10, the guide rail 12 may have a sliding groove 120, and the first sliding portion 110 may be adapted to slide along the sliding groove 120.

For example, the guide rail 12 may be made of a plastic material.

Further, the chute 120 may include a chute portion 121 inclined in a drawing-out direction (illustrated y-direction) of the drawer 11 toward a sinking direction of the drawer 11. Wherein fig. 2 is a schematic view of a guide rail 12 of the household appliance 1 shown in fig. 1; fig. 3 is a side view of the rail 12 shown in fig. 2.

The sinking direction of the drawer 11 may be the gravitational direction. For the drawer 11 shown in fig. 1 to be pulled out of or pushed back into the storage chamber 10 in the y-direction, the sinking direction of the drawer 11 may be the opposite direction to the z-direction as shown.

In one embodiment, the number of the guide rails 12 may be two, and are disposed opposite to the left and right inner sidewalls of the storage compartment 10 in the x-direction, and fig. 4 and 5 show a combined schematic view of the guide rails 12 on one side of which the drawer 11 is supported. Wherein fig. 4 is a schematic view of the drawer 11 of the home appliance 1 shown in fig. 1 pushed back into the storage compartment 10 along the guide rail 12 shown in fig. 2; fig. 5 is a schematic view of the drawer 11 of the home appliance 1 shown in fig. 1 pulled out of the storage compartment 10 along the guide rail 12 shown in fig. 2.

In one embodiment, the extending direction of the sliding chute 120 may be substantially parallel to the drawing direction (illustrated y-direction) of the drawer 11, so that the drawer supported to the guide rail 12 by the first sliding portion 110 can be smoothly drawn out or pushed back into the storage compartment 10.

In one implementation, the chute 120 may have an opening 122 facing the drawer 11, and the first sliding portion 110 extends into and is supported by the chute 120 from the opening 122, such that the first sliding portion 110 is effective to support the drawer 11 for sliding along the chute 120.

In one implementation, the first sliding portion 110 may include a first roller 111 rotatably provided to the drawer 11. Thus, the first roller 111 is adapted to support the drawer 11 to roll on the chute 120, so as to avoid dry friction between the drawer 11 and the chute 120, and enable a user to pull the drawer 11 more smoothly.

In a variation, the first sliding portion 110 may include a turned-out edge formed by bending an upper edge of a side wall of the drawer 11 in a direction away from an opening of the drawer 11, and the turned-out edge is supported on the chute 120 and may slide back and forth on the chute 120 in the y direction.

In one implementation, the drawer 11 has opposite front and rear ends 11a, 11b in the y-direction, wherein the front end 11a refers to the end of the drawer 11 that is closer to the access opening 101 when positioned within the storage compartment 10, and the rear end 11b refers to the end of the drawer 11 that is farther from the access opening 101 when positioned within the storage compartment 10.

The guide rail 12 has opposite front and rear ends 12a and 12b in the y direction, wherein the front end 12a refers to an end close to the access port 101 of the storage chamber 10 and the rear end 12b refers to an end distant from the access port 101.

In one implementation, the first sliding portion 110 may be provided at the rear end 11b of the drawer 11.

In one implementation, the rail 12 may be provided with one or more mounting holes 123 adapted to secure the rail 12 to the interior side walls of the storage compartment 10. For example, the guide rail 12 may be fixed to the storage compartment 10 through the mounting hole 123 in a direction such as bolt fastening.

Taking the domestic appliance 1 as an example of a refrigerator, the guide rail 12 may be fixed to the inner container of the refrigerating chamber or the freezing chamber.

In one implementation, the chute portion 121 may have an upper chute wall 124, the upper chute wall 124 being inclined in the pull-out direction (illustrated y-direction) to the sink direction (illustrated z-direction opposite) to form a guide surface extending obliquely downward in the y-direction.

When the first slide portion 110 slides in the pull-out direction (y direction shown in the drawing) to the front end 12a of the rail 12, the front end 11a of the drawer 11 is lowered by gravity, and the first slide portion 110 moves in a direction opposite to the lowering direction (z direction shown in the drawing). The distance of upward movement of the first sliding portion 110 is reduced by the restriction of the declining upper groove wall 124, so that the distance of downward declining of the front end 11a of the drawer 11 is also reduced.

In one implementation, the upper channel wall 124 may be linear, as shown in FIG. 3, to provide for smoother overall movement of the drawer 11 during its removal from the storage compartment 10, without significant jamming experienced by the user.

In one variation, the upper groove wall 124 may also have an arc shape extending generally downward in the y-direction, and the arc shape may be convex toward the sinking direction. Alternatively, the arc may be convex in the z-direction of the illustration.

In a variation, the upper groove wall 124 may also have a step shape extending in the y direction substantially downward, so as to reduce the sinking amount of the front end 11a of the drawer 11, and simultaneously, play a role in reducing the speed to a certain extent, so as to avoid the safety accident caused by the excessively fast pulling of the drawer 11.

In one implementation, the chute 120 may have a substantially constant cross-section to ensure that the first slide 110 slides smoothly along the chute 120, and to facilitate reducing mold complexity and optimizing the manufacturing process. Wherein, the cross section refers to a section on a plane formed by the x direction and the z direction.

In one implementation, the chute 120 has opposing upper and lower chute walls 120a, 120b along the z-direction. For any point of chute 120 along the y-direction, the distance from the upper chute wall 120a to the lower chute wall 120b of chute 120 may be approximately the same along the z-direction.

During the drawer 11 is pulled out or pushed back into the storage compartment 10, the first sliding portion 110 is mostly supported on the lower groove wall 120b of the sliding groove 120 and slides along the lower groove wall 120b.

When the drawer 11 moves in the pull-out direction to the point that the center of gravity exceeds the guide rail 12, the drawer 11 sinks under the force of gravity, so that the first slider 110 is tilted up in the z-direction and brought into contact with the upper groove wall 120a of the slide groove 120.

As the drawer 11 continues to move in the pull-out direction, the first sliding portion 110 slides along the upper groove wall 120a of the chute 120 to the upper groove wall 124 of the chute portion 121. Of course, the length of the chute portion 121 in the y-direction may be adapted such that the first slide portion 110, when separated from the lower chute wall 120b of the chute 120, just switches to the upper chute wall 124 of the chute portion 121.

In one implementation, the upper groove wall 124 of the chute portion 121 may be formed by the upper groove wall 120a of the chute 120. For example, for the upper groove wall 120a of the chute 120 extending in the y-direction, the extending direction of the portion of the upper groove wall 120a located in the middle of the chute 120 and near the rear end 12b of the guide rail 12 may be substantially parallel to the horizontal direction (as illustrated in the y-direction), and the portion of the upper groove wall 120a located near the front end 12a of the guide rail 12 of the chute 120 is adapted to form the upper groove wall 124 of the chute section 121.

In a variation, the upper groove wall 124 of the chute portion 121 may be a separate baffle and engage the upper groove wall 120a of the chute 120. For example, an end of the upper groove wall 124 of the chute portion 121 remote from the front end 12a of the guide rail 12 may be connected to the upper groove wall 120a of the chute 120, and an end of the upper groove wall 124 of the chute portion 121 near the front end 12a of the guide rail 12 extends in a sinking direction. Thereby, the chute portion 121 may be mounted to the guide rail of the existing home appliance in the form of a separate assembly.

In one implementation, the rail 12 may include a stop structure 125, and the stop structure 125 may be adapted to stop the drawer 11 after the drawer 11 is pulled out to a predetermined extent. When the drawer 11 is stopped, the first sliding portion 110 is located at the chute portion 121, as shown in fig. 5. Thus, the maximum movement stroke of the drawer 11 in the drawing-out direction (the y-direction shown in the drawing) is restricted by the stopper structure 125, and the drawer 11 is prevented from being completely drawn out of the storage compartment 10.

For example, the predetermined degree may be determined according to the length of the chute portion 121 in the y-direction.

In one implementation, the side walls of the drawer 11 may be provided with stop portions 112, the stop portions 112 being adapted to cooperate with stop structures 125 to achieve the effect of stopping the drawer 11.

For example, the stop structure 125 may be an arc structure protruding toward the z-direction, and the stop portion 112 may be an arc notch adapted to stop the drawer 11 when the drawer 11 moves in the y-direction until the stop portion 112 abuts against the stop structure 125.

In one implementation, when the drawer 11 is stopped, the first sliding portion 110 abuts against the upper groove wall 124 of the chute portion 121, and the drawer 11 is supported on the second sliding portion 126 located in front of the chute portion 121.

For example, the second sliding portion 126 may include a second roller 127, and the side wall of the drawer 11 may be relatively provided with a support member to be supported to move on the second roller 127 during the pulling out or pushing back of the storage compartment 10, to reduce friction, and optimize the movement effect of the drawer 11.

The outer contour radian of the second roller 127 can be matched with the shape of the stop structure 125, and the stop portion 112 of the drawer 11 can be matched with at least one of the second roller 127 and the stop structure 125 to effectively play a role in stopping.

The front end 12a of the guide rail 12 may be provided with a pivot portion 128, and the second roller 127 may be rotatably provided to the pivot portion 128.

The second roller 127 may be fixed to the rail 12 or located in front of the rail 12.

Thus, the front end 11a of the drawer 11 naturally descends and the first slider 11 is tilted in the opposite direction with the second slider 126 as a fulcrum. In this process, since the chute portion 121 is inclined in the sinking direction in the pull-out direction, the reversely tilted first slide portion 110 can earlier abut against the upper groove wall 124 of the chute portion 121. Further, the first sliding portion 110 and the chute portion 121 which are abutted against each other can have an effect of preventing the front end 11a of the drawer 11 from continuing to sink. Further, since the first sliding portion 110 can be abutted against the chute portion 121 with a small amount of reverse tilting, the sinking amount of the front end 11a of the drawer 11 can be effectively reduced.

In one implementation, referring to fig. 5, in the pull-out direction (y-direction in the drawing) of the drawer 11, a distance L1 from an intersection point of the chute portion 121 and the other portion of the chute 120 to the stopper structure 125 is greater than a distance L2 from the first sliding portion 110 to the stopper portion 112 of the drawer 11. Thus, the first sliding portion 110 can be ensured to be positioned at the chute portion 121 when the drawer 11 is stopped, so as to achieve the purpose of reducing the sinking amount of the front end 11a of the drawer 11.

Specifically, the boundary point of the chute portion 121 and the other portion of the chute 120 may refer to the boundary point of the upper chute wall 120a of the chute 120 and the upper chute wall 124 of the chute portion 121.

In one implementation, the inclination angle (illustrated inclination angle α) of the chute portion 121 in the pull-out direction (illustrated y direction) toward the sinking direction may be 3 degrees to 10 degrees. The inclination angle α refers to an angle between the extending direction of the upper groove wall 124 of the chute portion 121 and the y direction.

In one implementation, the length of the chute portion 121 in the pull-out direction of the drawer 11 (illustrated y-direction) may be at least one third of the length of the chute 120 in the pull-out direction of the drawer 11 (illustrated y-direction).

Therefore, the declining angle of the chute part 121 and the length of the chute part 121 are reasonably designed, so that the effect of reducing the sinking amount is achieved, the user is ensured not to generate obvious feeling when pulling the drawer 11, and the user experience is optimized.

In one implementation, the rail 12 may include an entrance section 129 located at a front end of the chute 120 in a pull-out direction (illustrated y-direction) of the drawer 11, the entrance section 129 being located in front of the chute portion 121. For example, the inlet section 129 may be closer to the front end 12a of the rail 12 than the chute portion 121.

In one implementation, at least one of the upper or lower slot walls 129a, 129b of the inlet section 129 is inclined in a pull-out direction (illustrated y-direction) of the drawer 11 toward a direction gradually away from the other of the upper or lower slot walls 129a, 129 b.

Thus, the entrance section 129 has a bell mouth shape, which facilitates the first sliding portion 110 of the drawer 11 to be installed into the sliding slot 120, thereby facilitating the assembly of the drawer 11.

For example, the upper groove wall 129a of the inlet section 129 may be formed by the upper groove wall 120a of the chute 120 and the lower groove wall 129b of the inlet section 129 may be formed by the lower groove wall 120b of the chute 120.

In one implementation, the chute 120 may include a horizontal section 130 located behind the chute portion 121 in the pull-out direction (y-direction as shown) of the drawer 11, with the lower chute wall 130b of the horizontal section 130 being parallel to the horizontal direction (e.g., y-direction). Thereby, the horizontal segment 130 is adapted to support the drawer 11 to be pulled out or pushed back into the storage compartment 10 substantially in the horizontal direction and to guide the drawer 11 to move to the chute portion 121 when the drawer 11 is pulled out.

For example, the lower groove wall 130b of the horizontal segment 130 may be formed by the lower groove wall 120b of the chute 120.

In one implementation, the rear end of the chute 120 in the pull-out direction (illustrated y-direction) of the drawer 11 may have an inclined portion 131, and the inclined portion 131 is inclined toward the sinking direction in the push-back direction (illustrated y-direction) of the drawer 11.

Thus, the drawer 11 pushed back to the inclined portion 131 along the chute 120 has a tendency to continue to automatically move into the storage compartment 10, so that the drawer 11 can automatically move to the final position after being pushed back to a predetermined extent.

For example, the inclined portion 131 may include a lower groove wall 131b, and the lower groove wall 131b of the inclined portion 131 may be formed by the lower groove wall 120b of the chute 120.

In one implementation, in the y-direction, chute 120 can include, in order, a sloped portion 131, a horizontal section 130, a chute portion 121, and an inlet section 129. Each component can comprise an upper groove wall and a lower groove wall which are opposite, the upper groove walls of the two adjacent components are in smooth transition, and the lower groove walls of the two adjacent components are also in smooth transition. The upper groove wall of each component is adapted to form the upper groove wall 120a of the chute 120 and the lower groove wall of each component is adapted to form the lower groove wall 120b of the chute 120.

Specifically, the upper groove wall 129a and the lower groove wall 129b of the inlet section 129 extend in a direction away from each other in the y-direction to form a flare that facilitates the first sliding portion 110 to extend into the chute 120.

The chute portion 121, which is located behind the inlet section 129 in the y-direction, may have an upper chute wall 124 extending obliquely downward in the y-direction. Accordingly, the lower groove wall of the chute portion 121 may be parallel to its upper groove wall 124 to ensure that the height of the chute portion 121 in the z-direction is substantially constant.

The horizontal section 130 located behind the chute portion 121 in the y-direction may have an upper and a lower chute wall 130b, each extending substantially in the y-direction.

The inclined portion 131 located at the rear of the horizontal segment 130 in the y-direction may have a lower groove wall 131b extending obliquely downward in the opposite direction of the y-direction. Accordingly, the upper groove wall of the inclined portion 131 may be parallel to the lower groove wall 131b thereof to ensure that the height of the inclined portion 131 in the z-direction is substantially constant.

When the drawer 11 is positioned in the storage compartment 10, as shown in fig. 4, the first sliding portion 110 is supported by the lower groove wall 131b of the inclined portion 131. During the drawer 11 is pulled out of the storage compartment 10 from the position shown in fig. 4, the first sliding portion 110 slides along the lower groove wall 120b of the slide groove 120 and passes through the lower groove wall 131b of the inclined portion 131 and the most lower groove wall 130b of the horizontal section 130 in sequence.

When the drawer 11 is pulled out to a position close to that shown in fig. 5, the front end 11a of the drawer 11 is sunk under the action of gravity, causing the first sliding portion 110 to disengage from the lower groove wall 120b of the chute 120 and tilt up to abut against the upper groove wall 124 of the chute portion 121.

As the drawer 11 continues to be pulled out, the stop portion 112 of the drawer 11 abuts against the stop structure 125 provided on the guide rail 12, and the drawer 11 is stopped, and the position of the drawer 11 is shown in fig. 5.

When the drawer 11 is pushed back into the storage chamber 10 from the position shown in fig. 5, the first sliding portion 110 is changed from sliding along the upper groove wall 124 of the chute portion 121 to sliding along the lower groove wall 130b of the horizontal section 130.

As the drawer 11 continues to be pushed back, the first sliding portion 110 slides to the lower groove wall 131b of the inclined portion 131. At this time, even if the drawer 11 is no longer subjected to the thrust in the opposite direction of the y-direction, the first sliding portion 110 can continue to slide toward the rear end 12b of the guide rail 12 along the lower groove wall 131b of the inclined portion 131 by the gravity. Thereby, the drawer 11 can be automatically moved to the position shown in fig. 4.

In one implementation, the first sliding portion 110 at least partially travels within the chute portion 121 to contact the upper groove wall 124 of the chute portion 121, such that the rear end 11b of the drawer 11 is restricted from further tilting upward, and thus acts on the front end 11a of the drawer 11 to have the effect of reducing the amount of sinking.

As described above, with the present embodiment, by providing the chute portion 121 inclined in the sinking direction of the drawer 11 at the front end 12a of the guide rail 12, it is possible to reduce the sinking amount of the front end 11a when the drawer 11 is pulled out. The reduced amount of sinking is advantageous in order to avoid the front end 11a of the drawer 11 colliding with other parts of the household appliance 1 (such as the drawer 11 located below in fig. 1) when the drawer is pulled out.

Although specific embodiments have been described above, these embodiments are not intended to limit the scope of the disclosure, even where only a single embodiment is described with respect to a particular feature. The characteristic examples provided in this disclosure are intended to be illustrative, not limiting, unless stated differently. In the specific implementation, the technical features of one or more dependent claims may be combined with the technical features of the independent claims and the technical features from the respective independent claims may be combined in any suitable manner and not merely by the specific combinations enumerated in the claims.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention, and the scope of the invention should be assessed accordingly to that of the appended claims.

Claims

1. A household appliance (1), characterized by comprising:

a storage chamber (10), wherein the storage chamber (10) is provided with a taking and placing port (101);

a drawer (11) having a first sliding portion (110), the drawer (11) being located within the storage chamber (10) and being capable of being pulled out of or pushed back into the storage chamber (10); and

-a rail (12), the rail (12) being located within the storage compartment (10), the rail (12) having a chute (120), the first sliding portion (110) being adapted to slide along the chute (120);

wherein the chute (120) comprises a chute portion (121) inclined in a pull-out direction of the drawer (11) toward a sinking direction of the drawer (11);

the chute portion (121) has an upper chute wall (124), the upper chute wall (124) being inclined in the pull-out direction toward the sinking direction.

2. Household appliance (1) according to claim 1, wherein said chute (120) has a substantially constant cross section.

3. Household appliance (1) according to claim 1 or 2, wherein said guide rail (12) comprises a stop structure (125), said stop structure (125) being adapted to stop said drawer (11) after said drawer (11) has been pulled out to a predetermined extent, said first sliding portion (110) being located at said chute portion (121) when said drawer (11) is stopped.

4. A household appliance (1) according to claim 3, wherein the first sliding portion (110) abuts against an upper groove wall (124) of the chute portion (121) when the drawer (11) is stopped, the drawer (11) being supported on a second sliding portion (126) located in front of the chute portion (121).

5. A household appliance (1) according to claim 3, wherein the distance (L1) from the junction of the chute portion (121) with the other portion of the chute (120) to the stop structure (125) is greater than the distance (L2) from the first sliding portion (110) to the stop portion (112) of the drawer (11) in the pull-out direction of the drawer (11), wherein the stop portion (112) of the drawer (11) is adapted to cooperate with the stop structure (125) to stop the drawer (11).

6. Household appliance (1) according to claim 1 or 2, wherein the angle of inclination of the chute portion (121) in the pull-out direction towards the sinking direction is 3 to 10 degrees, and/or wherein the length of the chute portion (121) in the pull-out direction of the drawer (11) is at least one third of the length of the chute (120) in the pull-out direction of the drawer (11).

7. The household appliance (1) according to claim 1 or 2, wherein the guide rail (12) comprises an inlet section (129) located at a front end of the chute (120) in a pull-out direction of the drawer (11), the inlet section (129) being located in front of the chute portion (121), at least one of an upper groove wall (129 a) of the inlet section (129) or a lower groove wall (129 b) of the inlet section being inclined in a pull-out direction of the drawer (11) towards a direction gradually away from the other of the upper groove wall (129 a) of the inlet section or the lower groove wall (129 b) of the inlet section.

8. Household appliance (1) according to claim 1 or 2, wherein the first sliding portion (110) comprises a first roller (111) rotatably arranged to the drawer (11).

9. Household appliance (1) according to claim 1 or 2, wherein the chute (120) comprises a horizontal section (130) located behind the chute section (121) in the pull-out direction of the drawer (11), the lower chute wall (130 b) of the horizontal section (130) being parallel to the horizontal direction.

10. Household appliance (1) according to claim 1 or 2, wherein the chute (120) has an inclined portion (131) at the rear end in the pull-out direction of the drawer (11), the inclined portion (131) being inclined in the push-back direction of the drawer (11) towards the sinking direction.

11. Household appliance (1) according to claim 1 or 2, wherein the first sliding portion (110) is at least partially stroked in the chute portion (121) in contact with an upper groove wall (124) of the chute portion (121).

12. Household appliance (1) according to claim 1 or 2, wherein the chute (120) has an opening (122) facing the drawer (11), the first slide (110) extending from the opening (122) into and being supported by the chute (120).