Household appliance with a fastening device for attaching a decorative element to a door of the household appliance

A support pin and groove body system securely attaches decorative elements to household appliance doors without screws, ensuring alignment and preventing detachment, addressing the issues of visual and structural compromise in existing methods.

DE102025100743B3Active Publication Date: 2026-02-05GUANGDONG MIDEA KITCHEN & BATH APPLIANCES MFG CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
DE102025100743
Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Filing Date
2025-01-10
Publication Date
2026-02-05
Estimated Expiration
2045-01-10

AI Technical Summary

Technical Problem

Existing methods for attaching decorative elements to household appliance doors require screws, which can compromise the visual appearance and structural integrity of the door, and are cumbersome and prone to misalignment.

Method used

A fastening device using a support pin and receiving groove body system that secures decorative elements to the door without screws, allowing vertical and horizontal adjustment for precise alignment, using undercut channels and optional latching mechanisms to prevent detachment.

Benefits of technology

The solution provides secure, screw-less attachment of decorative elements, maintaining door integrity and visual consistency, while simplifying installation and preventing accidental detachment.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 00000000_0000_ABST
    Figure 00000000_0000_ABST
Patent Text Reader

Abstract

The invention relates to a household appliance (1) with a fastening device (15) comprising a support pin (16) with a pin head (16a) having a recessed surface (16b) and a receiving groove body (17) for connecting a decorative element (14) to a door (13), wherein the receiving groove body (17) has a first groove channel (19) designed to guide the pin head (16a) of the support pin (16) along the first groove channel (19) in a vertical direction when the support pin (16) engages in the first groove channel (19) of the receiving groove body (17) in an assembly position, such that the pin head (16a) is vertically displaceable in the vertical direction from an engagement position to a holding position along the first groove channel (19) relative to the receiving groove body (17), wherein the receiving groove body (17) has a second groove channel (20) branching off from the first groove channel (19).which is arranged transversely to the first groove channel (19) and is designed to lock the pin head (16a) of the support pin (16) against vertical movement relative to the receiving groove body (17) when the support pin (16) engages in the second groove channel (20) in a locking position moved from its holding position out of the first groove channel (19), such that the pin head (16a) is secured against vertical movement along the first groove channel (19) relative to the receiving groove body (17).
Need to check novelty before this filing date? Find Prior Art

Description

The invention relates to a household appliance having a base body and a door mounted on the base body, on the front side of which a decorative element is fastened by means of at least one fastening device.US 10 470 641 B2 describes a dishwasher comprising a chassis, a tub supported by the chassis and at least partially defining a treatment chamber having an access opening, a door pivotally mounted to the chassis and pivotally movable between open and closed positions to selectively close the access opening, a decor panel for the door, and comprising a slide adjuster slidably connecting the decor panel to the door and a slot, a slide slidably received in the slot, and a locking element fixing the position of the slide relative to the slot, wherein the position of the decor panel can be adjusted by sliding the decor panel relative to the door and locking the slide relative to the slot.It is an object of the invention to provide a household appliance in which a decorative element can be reliably fastened to a door of the household appliance without having to screw the decorative element firmly to the door.The object is achieved by a domestic appliance having a base body and a door mounted on the base body, on the front side of which a decorative element is fastened by means of at least one fastening device, wherein the at least one fastening device comprises:a support pin having a pin head which has a depositing surface and having a first connecting means which connects the support pin to the one component of the two components of decorative element and door,a receiving groove body connected to the other component of the two components of decorative element and door, which receiving groove body has an undercut first groove channel which is configured to guide the pin head of the supporting pin along the first groove channel in a vertical direction when the supporting pin engages in the undercut first groove channel of the receiving groove body in an assembly position, in such a way that the pin head can be vertically displaced in the vertical direction from a placement position into a holding position along the first groove channel relative to the receiving groove body, whereinthe receiving groove body has an undercut second groove channel branching off from the first groove channel, which is arranged running transversely to the first groove channel and is designed to lock the pin head of the supporting pin against vertical adjustment relative to the receiving groove body when the supporting pin engages in the second groove channel in a locking position moved out of its holding position from the first groove channel, in such a way that the pin head is secured against vertical adjustment along the first groove channel relative to the receiving groove body.In household appliances, in particular built-in household appliances, there is often the desire to be able to configure the front of the door of the household appliance visually individually. For example, in the case of a built-in household appliance, there is a need to be able to adapt the visual appearance of the front of the built-in household appliance to the visual design of other furniture or furniture items. For example, in the case of a dishwasher which is to be integrated into a kitchen row of an installed kitchen, there is often the need to design the front of the dishwasher in the same design as the other fronts of the other kitchen furniture. In order to be able to achieve such an optical adaptation, decorative elements are known to be used which are fastened to the front side of a door of the household appliance. Such decorative elements may be substantially rectangular or square plates. The decorative elements can be, for example, solid wood plates, veneer plates, plastic screens or metal sheets, in particular stainless steel sheets.In the simplest case of a plastic or wood panel, the corresponding decorative element can be placed flush on the front side of the door of the domestic appliance and screwed to the door by means of sheet metal screws or wood screws, wherein the screws, starting from the inner side of the door of the domestic appliance, penetrate through the door into the rear side of the decorative element and thus hold the decorative element firmly on the door. However, it is disadvantageous here that through-channels must be provided in the door so that the screws can be inserted there. This can adversely affect the visual appearance of the inside of the door on the one hand and can be functionally critical on the other hand, since moisture, in particular moisture from the domestic appliance, for example, if it is a water-conducting domestic appliance, such as a dishwasher, can penetrate into the through-channels, which can lead to corrosion damage in the door in the long term.Solutions already exist in which fitting parts are used which are mounted on the front side of the door and on which a decorative element can be connected in an interlocking manner by means of a slide fastened to the rear side of the decorative element. However, such sliders merely serve to be able to align the decorative element with respect to the door in height, screws also being provided in order to be able to finally screw the decorative element, when it is in the correct height position with respect to the door, onto the door. In such embodiments, too, it is indispensable to pass screws through the door.A further disadvantage of the known types of fastening with screws which are passed through the door is the difficult and time-consuming installation. The decorative element must be held in its exact position relative to the door while the screws are to be tightened. Special tools, such as screwdrivers, are also required to enable the screws to be tightened. Here, there is also the risk that the wrong holes on the inside of the door are used and then undesired damage is caused to the door of the household appliance.The solution according to the invention has the advantage over the contrary that screws for fastening the decorative element to the door can be completely dispensed with.The base body of the household appliance can comprise an appliance-specific treatment space. Thus, in the case of a dishwasher, the treatment chamber can form a washing chamber for dishes, cutlery and other washware. In the case of a refrigeration appliance, the treatment space can be a storage space for foods to be cooled or frozen. In the case of a washing machine, the treatment space may comprise a laundry drum. In the case of a dryer, the treatment space may comprise a laundry drying drum.The door can in particular be a door pivotably mounted on the base body of the domestic appliance. The door can be mounted in particular such that it can be rotated about a horizontally oriented pivot axis arranged in a lower region of the domestic appliance and can thus be a downwardly hinged door, as is usually the case, for example, in dishwashers. Alternatively, however, the door can also be mounted rotatably about a vertical pivot axis, so that the door can be pivoted open either at the left or at the right toward one side, as is usually the case, for example, in refrigeration appliances. However, it is also conceivable for the door to be a push-type door.The fastening device according to the invention comprises at least one support pin and a receiving groove body which interacts with the support pin and has the first groove channel and the second groove channel. In each case a support pin and an associated receiving groove body form two mutually complementary connecting components of a fastening device, wherein in principle one connecting component is fastened to the decorative element and the respective other connecting component is fastened to the door. For example, the support pin can be fastened to the door and the receiving groove body can be formed on the decorative element. However, it will generally be more expedient if the support pin is fastened to the decorative element and the receiving groove body is provided on the door. In a particularly expedient embodiment, a first support pin is provided on the rear side of the decorative element at an upper left corner region and a second support pin is provided at an upper right corner region. Accordingly, the door can have on its front side, at an upper left corner region of the door, a first receiving groove body which interacts with the first supporting pin, and the door can have on its front side, at an upper right corner region of the door, a second receiving groove body which interacts with the second supporting pin.Each support pin has a pin head which has a larger shape than a shank portion of the support pin. Due to the enlarged shape of the pin head, the undercut surface is formed on the underside of the pin head. In a connected state of the support pin with the associated receiving groove body, the pin head engages behind the undercut first groove channel or the second groove channel, so that the undercut surface of the pin head lies flush behind the undercut first groove channel or behind the undercut second groove channel and keeps the decorative element flush against the door.Due to the first grooved channel, the decorative element can continue to be displaced in a vertical direction along the first grooved channel in its arrangement lying flush with the door, wherein the decorative element can no longer fall off the door due to the positive engagement of the pin head and the first grooved channel. Within the first grooved channel, the pin head can thus be displaced from its vertically higher attachment position on the door into a vertically lower holding position. In this respect, the decorative plate itself is also located in a corresponding higher attachment position or in a lower holding position, analogous to the height position of the pin head.In an embodiment described in more detail below, the decorative element can have a fitting part in addition to the connecting component of the fastening device, in particular in addition to the support pin. The connecting component provided on the decorative panel, in particular the support pin, is arranged at such a distance from the connecting component or the support pin on the decorative element that the fitting part, in the holding position of the decorative element or the support pin in the first groove channel, interacts with an associated shoulder on the door in such a way that the fitting part supports the decorative element at such a height position of the decorative element with respect to the door in which the support pin is located at such a height position in the first groove channel that the support pin can change into the second groove channel by a lateral movement of the decorative element in a horizontal direction relative to the door.If the decorative element is thus placed on the door so that the support pin can enter the first groove channel, the decorative element is not yet located congruently on the contour of the outer surface of the door, but slightly offset upward in the vertical direction to the contour of the door and at the same time slightly offset laterally to the contour of the door in the horizontal direction. The slight horizontal offset corresponds to the horizontal length of the second grooved channel. The decorative element is thus placed on the outer surface of the door in a manner laterally offset with respect to the door, so that in this offset position with respect to the door the support pin can penetrate into the first grooved channel. The decorative element arranged offset can now be moved vertically downwards into the holding position in the vertical direction along the first grooved channel, in particular until the fitting part of the decorative element rests on the shoulder of the door, whereby the decorative element is not only secured against dropping off perpendicularly to the main plane of the door or of the decorative element, but is also held in the vertical direction, can no longer move downwards and can only be displaced laterally in the horizontal direction.The lateral displacement of the decorative element relative to the door then takes place from the holding position of the support pin or of the decorative element in the first groove channel into the locking position of the support pin, in which the support pin is then changed into the second groove channel. Since the second grooved channel extends in a horizontal direction, the decorative element in this locking position can also no longer be adjusted in an upward direction relative to the door and can therefore no longer be removed from the door without a horizontal return adjustment. The decorative element is thus secured to the door against undesired detachment. The horizontal length of the second grooved channel corresponds exactly to the length of the offset that the decorative element has assumed relative to the door in the horizontal direction when the support pin was still located in the first grooved channel. In the locking position of the support pin and thus also in the locking position of the decorative element, the decorative element is then located congruently on the contour of the outer surface of the door.The decorative element can now only be released from the door by the decorative element being moved back from the locking position into the holding position again in a backward movement in the horizontal direction. For example, in the case of an installed domestic appliance, this is no longer possible, however, if the installed domestic appliance is inserted into its installation recess in a row of furniture in which the door together with the decorative element terminates at least largely flush with adjacent furniture doors or decorative panels of the row of furniture on the left side and / or on the right side with small gap dimensions. If the decorative element were to be adjusted laterally relative to the door of the household appliance, the decorative element would rest laterally on the adjacent furniture door or adjacent decorative panels and the support pin could not change over into the first groove channel. In the case of an installed domestic appliance, the decorative element can therefore only be mounted on the door of the domestic appliance or can be dismounted when the installed domestic appliance is at least slightly pulled out of its installation recess.As the decorative element can optionally have a connecting component of the fastening device, such as the support pin, or a plurality of, in particular two, connecting components, in particular support pins, for connecting it to the door, the decorative element can also have two or more fitting parts, which in turn can interact with two or more shoulders on the door.The fastening device can accordingly comprise at least one fitting part which is arranged separately from the support pin and the receiving groove body and is fastened to the decorative element and which is designed, in cooperation with a shoulder arranged on the door, to bear against vertical lowering of the decorative element relative to the door both in the holding position of the support pin and in the locking position of the support pin on the shoulder of the door.In a simple embodiment, the fitting part can be formed by a twice angled sheet metal which in this respect comprises a first sheet metal leg and a second sheet metal leg arranged offset from the main plane of the first sheet metal leg, wherein the first sheet metal leg can be fastened in a planar manner to the rear side of the decorative element and the second sheet metal leg then projects offset parallel from the plane of the rear side of the decorative element in this respect. If the decorative element is placed on the front side of the door, the second sheet metal leg of the fitting part engages behind the shoulder on the front side of the door and the decorative element is thus seated on the shoulder and cannot move further downward in the vertical direction.The fitting part of the decorative element and the shoulder of the door can be designed to be coordinated with one another in such a way that the fitting part, while being supported on the shoulder of the door in the vertical direction, is mounted so as to be adjustable relative to the shoulder in a horizontal direction between the holding position and the locking position of the decorative element.The shoulder can in particular have such a greater width and the second sheet metal leg of the fitting part can in particular have such a smaller width that the second sheet metal leg can continue to be displaced relative to the shoulder in a horizontal direction. This then also means that the decorative element can continue to be displaced in a horizontal direction relative to the door, although the decorative element is seated on the shoulder of the door by means of the fitting part. In this arrangement, in which the decorative element is seated on the shoulder of the door by means of the fitting part, an assembler no longer has to retain the decorative element, since the decorative element is now already sufficiently guided on the door. However, a horizontal adjustment of the decorative element is still possible and also desired, so that the decorative element can be pushed from the holding position into the locking position. The decorative element can accordingly be mounted in a secure manner, in particular by a single assembler, without the need for the assistance of a second person, for example.The vertically extending first groove channel can have an extended insertion opening at its upper end section, which is designed for inserting the pin head of the support pin into the first groove channel in an insertion direction, which leads along the axial extension of the support pin, perpendicular to the longitudinal extension of the first groove channel, until the pin head can penetrate so deeply into the first groove channel that the undercut surface of the pin head lies behind at least one undercut web of the first groove channel, so that when the support pin is moved vertically downward from its attachment position in the first groove channel, the pin head is supported with its undercut surface behind the web in order to prevent the support pin from being released from the first groove channel in a direction which leads counter to the insertion direction.The first groove channel can accordingly have at least one undercut web below the widened insertion opening. In a special embodiment, two opposing webs can be provided, which extend parallel to one another in the vertical direction within the first slot channel, wherein the edges of the two undercut webs facing one another are arranged at such a distance from one another that a shank portion of the support pin is located. Due to the widened pin head, the undercut surface of the pin head abuts behind the two undercut webs, in each case on the left and on the right, when the support pin is located in the first groove channel. In the region of the insertion opening, the first slot channel is accordingly widened to such an extent that the pin head can be inserted into the first slot channel from the outside until the pin head can engage behind the two undercut webs. This reliably prevents the support pin from being able to be pulled out of the first grooved channel perpendicular to the main plane of the door. The decorative element is thereby held flush against the door. Furthermore, however, the support pin can be displaced in a vertical direction downwards within the first grooved channel and then also be pushed laterally into the second grooved channel in a horizontal direction at the height position correspondingly provided structurally. The second groove channel is correspondingly also formed with undercuts, so that the support pin cannot also be pulled out of the second groove channel perpendicular to the main plane of the door.The second grooved channel is connected to the first grooved channel. The second groove channel leads to the first groove channel. The second groove channel can have, in its mouth section into the first groove channel, a groove width widening in the direction of the first groove channel.If the second groove channel, in its mouth section into the first groove channel, has a groove width widening in the direction of the first groove channel, the passage of the support pin from the first groove channel into the second groove channel can be facilitated. The widening mouth section forms a centering for the support pin, so that the latter can reliably pass into the second groove channel, despite any positional deviation that may occur, when it leaves the first groove channel.In a first embodiment variant, the second grooved channel can extend away from the vertical first grooved channel in a horizontal direction.In the first embodiment variant, the second grooved channel runs in a horizontal direction, so that the support pin can be moved in a simple manner from the first grooved channel into the second grooved channel when the decorative element is laterally displaced. During such a lateral displacement of the decorative element, the decorative element remains at the same height. If the decorative element is also suspended on shoulders of the door by means of fitting parts, the decorative element can be displaced laterally on the shoulders of the door continuously in a sliding manner, with the height position of the decorative element remaining the same, during the displacement from the holding position into the locking position. Thus, a lateral adjustment of the decorative element is possible very easily and with little effort. The decorative element no longer has to be held manually in this state, but the decorative element is already held reliably on the door and is only laterally adjustable.In the first embodiment variant, the second grooved channel can branch off from the first grooved channel at a height in which the support pin lies when the support pin engages with its pin head in the first grooved channel and the decorative element is in its holding position, in particular when the decorative element is supported on the shoulder of the door via the fitting part.Thus, a link-like guide can be realized for the decorative element, which guide holds the decorative element flush against the door in a planar manner on the one hand and secures the decorative element against vertical movement downwards, but also allows a slight lateral displacement of the decorative element relative to the door.In a second variant embodiment, the second slot channel can extend away from the vertical first slot channel in a downward direction, in such a way that the support pin is guided through the second slot channel both in a horizontal directional component and in a vertically downward directional component when the support pin moves from its holding position into the locking position and in the process runs around an upwardly pointing corner projection of the receiving slot body between the first slot channel and the second slot channel.In the second embodiment variant, the second groove channel can have a distal groove end which is lower in the vertical direction than an upper edge of the corner projection, wherein the distal groove end is arranged in a height position in which the support pin lies when the support pin engages with its pin head in the second groove channel and the decorative element is in its locking position, in particular when the decorative element is supported via the fitting part on the shoulder of the door.In such an embodiment variant, the decorative element can accordingly not be easily displaced from the holding position into the locking position by an exclusive horizontal sliding movement. Rather, the decorative element must be raised somewhat during a displacement movement into the locking position, so that the support pin can slide over the upper edge of the corner projection when the support pin is intended to pass from the first grooved channel into the second grooved channel due to the displacement of the decorative element into the locking position.By means of the corner projection and the sloping second groove channel, an additional securing is created in comparison with a purely horizontally running groove channel, which helps prevent the support pin or the decorative element from getting automatically out of the locking position in the second groove channel into the holding position in the first groove channel in an undesired manner. The dead weight of the decorative element contributes in this respect to securing against undesired release from the locking position. Once the respective support pin has arrived in the distal groove end of the second groove channel, the decorative element is in its final assembly position, in which the decorative element is fastened to the front side of the door in a manner identical to the contour of the door.In a third embodiment variant, the second groove channel branching off from the first groove channel can be provided with a latching means which is designed to retain the supporting pin within the second groove channel when the supporting pin is moved from its holding position in the first groove channel into its locking position in the second groove channel in order to prevent the supporting pin from unintentionally moving back from the second groove channel into the first groove channel. The third embodiment variant can be provided alternatively or additionally to the first embodiment variant or to the second embodiment variant.The latching means can comprise a latching hook or a latching lug which is mounted in a spring-biased manner and which projects into the second slot channel in an unstressed state. The latching hook or the latching lug projecting into the second groove channel thus retains the support pin in the second groove channel when the shank portion of the support pin wishes to leave the second groove channel and is positively prevented from this by the latching hook or the latching lug. On a side facing the first groove channel, the latching hook can have a bevel which causes the latching hook to be pressed out of the second groove channel counter to its prestressing force when a support pin coming from the first groove channel runs against the latching hook when it wishes to pass into the second groove channel. Thus, the support pin can easily pass from the first groove channel into the second groove channel, but no longer come out of the second groove channel into the first groove channel. The latching hook or the latching lug can be produced together with a spring-elastic tongue section, in particular as a plastic injection-molded part, integrally together with the receiving groove body.In all embodiments, the decorative element can be formed by a rectangular or square plate having an outer side which carries the decor and a rear side to which a first fastening device is coupled at a left upper corner region and to which a second fastening device is coupled at a right upper corner region, wherein a first fitting part is fastened to a left lower corner region of the rear side, which fitting part is arranged at a distance from the first fastening device and is associated therewith, and a second fitting part is fastened to a right lower corner region of the rear side, which fitting part is arranged at a distance from the second fastening device and is associated therewith.The decorative element can be, for example, a solid wood plate, a veneer plate, a plastic screen or a metal sheet, in particular a stainless steel sheet.In general, the domestic appliance can be a dishwasher, a refrigerating appliance, a washing machine or a tumble dryer.Specific exemplary embodiments of the invention are explained in more detail in the following description with reference to the appended figures. Specific features of these exemplary embodiments may represent general features of the invention, if appropriate also individually or considered in further combinations, regardless of the specific context in which they are mentioned.The following are shown: FIG. 1 shows a perspective illustration of a domestic appliance in the exemplary embodiment of a dishwasher with the door open, FIG. 2 shows a perspective view of a door of a built-in domestic appliance with a decorative element mounted in front and two fastening devices and two fitting parts, in an exploded illustration, FIG. 3 shows a perspective illustration of the dishwasher according to FIG. 1 with the door closed and the decorative element arranged upstream during assembly, FIG. 4 shows a perspective illustration of the dishwasher according to FIG. 1 in isolation with the decorative element removed, with two fastening devices and two fitting parts, FIG. 5 shows a perspective illustration of an exemplary receiving groove body of a fastening device according to the invention in a first variant embodiment, FIG. 6 shows a perspective illustration of an exemplary shoulder on the door, on which a fitting part of the decorative element can be attached, FIG. 7 shows a perspective illustration of an exemplary receiving groove body of a fastening device according to the invention in a second embodiment variant with a second groove channel running obliquely downwards, FIG. 8 shows a view from the front of the receiving groove body according to FIG. 7 with the second groove channel and a support pin of the decorative element inserted therein, FIG. 9 shows a perspective illustration of an exemplary receiving groove body of a fastening device according to the invention in a third embodiment variant with a latching hook on the second groove channel, and FIG. 10 shows a view from the front of the receiving groove body according to FIG. 9 with the second groove channel, the latching hook and a support pin of the decorative element latched behind it.FIG. 1 shows a dishwasher 1 aas a representative example of a household appliance 1.The dishwasher 1 aincludes a washing chamber 2, in which, for example, an upper dish rack 3 and a lower dish rack 4 are arranged. Within the washing chamber 2 at least one spray arm 5 rotates. As shown, a cutlery basket 6 can be placed in the lower dish basket 4. Below the lower dish rack 4 a screw closure 7 can be arranged to an access opening into a salt storage space. Furthermore, a screen 8 is placed below the lower dish rack 4.The dishwasher 1a has a device control device 9 with a memory 10 in which at least one cleaning program is stored. The dishwasher 1a also comprises program keys 11 connected to the appliance control device 9.The washing chamber 2 is accessible via an opening which can be closed by a door 13 pivotably mounted on a base body 12 of the domestic appliance 1 or the dishwasher 1 a.As is shown in particular in FIGS. 2 and 3, a decorative element 14 can be fastened to the front side of the door 13 by means of at least one fastening device 15. In the case of the present exemplary embodiments, a fastening device 15 comprises a support pin 16 fastened to the rear side of the decorative element 14 and a receiving groove body 17 arranged on the front side of the door 13.The decorative element 14 is formed by a rectangular or square plate, which has an outer side 14 athat carries the decoration and a rear side 14 bto which a first fastening device 15.1 is coupled at a left upper corner region and to which a second fastening device 15.2 is coupled at a right upper corner region, wherein a first fitting part 18.1 is fastened to a left lower corner region of the rear side of the decorative element 14, which fitting part is arranged at a distance from the first fastening device 15.1 and is associated therewith. A second fitting part 18.2 is fastened to a right lower corner region of the rear side 14 bof the decorative element 14, said fitting part being arranged at a distance from the second fastening device 15.2 and being assigned to the latter.Each fastening device 15, 15.1, 15.2 has a support pin 16 with a pin head 16 aand a depositing surface 16 b, and a first connecting means 16 cthat connects the support pin 16 to the one component of the two components of decorative element 14 and door 13, in the case of the present exemplary embodiment to the decorative element 14.Each fastening device 15, 15.1, 15.2 also has a receiving groove body 17 which is connected to the other component of the two components of decorative element 14 and door 13 and has an undercut first groove channel 19 (FIG. 5 ) which is designed to guide the pin head 16 aof the supporting pin 16 along the first groove channel 19 in a vertical direction when the supporting pin 16 engages in the undercut first groove channel 19 of the receiving groove body 17 in an assembly position, in such a way that the pin head 16 acan be vertically displaced in the vertical direction from a mounting position into a holding position along the first groove channel 19 relative to the receiving groove body 17.As is shown in more detail in FIG. 5, in particular, the receiving groove body 17 has an undercut second groove channel 20 branching off from the first groove channel 19, which is arranged running transversely to the first groove channel 19 and is designed to lock the pin head 16 aof the support pin 16 against vertical adjustment relative to the receiving groove body 17 when the support pin 16 engages in the second groove channel 20 in a locking position moved out of its holding position from the first groove channel 19, in such a way that the pin head 16 ais secured against vertical adjustment along the first groove channel 19 relative to the receiving groove body 17.In the case of the exemplary embodiments shown, each fastening device 15 comprises a fitting part 18, 18.1, 18.2 (FIG. 3 ), which is arranged separately from the support pin 16 and the receiving groove body 17 and is fastened to the decorative element 14 and which is designed, in cooperation with a shoulder 21 arranged on the door 13, to support itself against vertical lowering of the decorative element 14 relative to the door 13 both in the holding position of the support pin 16 and in the locking position of the support pin 16 on the shoulder 21 of the door 13.The fitting part 18, 18.1, 18.2 of the decorative element 14 and the shoulder 21 of the door 13 are designed to be matched to one another in such a way that the fitting part 18, 18.1, 18.2, while being supported on the shoulder 21 of the door 13 in the vertical direction, is mounted so as to be adjustable relative to the shoulder 21 of the door 13 in a horizontal direction between the holding position and the locking position of the decorative element 14.In the case of the present three exemplary embodiments of FIGS. 5, 7 and 9, the vertically extending first slot channel 19 has, at its upper end portion, an extended insertion opening 22, which is designed for inserting the pin head 16 aof the support pin 16 into the first slot channel 19 in an insertion direction, which leads along the axial extension of the support pin 16, perpendicularly to the longitudinal extension of the first slot channel 19, until the pin head 16 acan penetrate into the first slot channel 19 to such a depth that the undercut surface 16 bof the pin head 16 ais situated behind at least one undercut web 23 of the first slot channel 19, such that the pin head 16 a, when the support pin 16 is moved vertically downward from its attachment position in the first slot channel 19, is supported with its undercut surface 16 bdownears behind the web 23, This is to prevent the support pin 16 from being released from the first groove channel 19 in a direction opposite to the insertion direction.For example, in the embodiment according to FIG. 5, the second groove channel 20, in its mouth section 20 ainto the first groove channel 19, has a groove width widening in the direction of the first groove channel 19.If the second groove channel 20, in its mouth section 20a into the first groove channel 19, has a groove width widening in the direction of the first groove channel 19, the passage of the support pin 16 from the first groove channel 19 into the second groove channel 20 can be facilitated. The widening mouth section 20 a thereby forms a centering for the support pin 16, so that the latter can reliably pass into the second groove channel 20 despite any position deviation that may occur when it leaves the first groove channel 19.In the case of the first embodiment variant according to FIG. 5, the second grooved channel 20 can extend away from the vertical first grooved channel 19 in a horizontal direction, as is shown in FIG. 5.In particular in the case of the first variant embodiment according to FIG. 5, the second grooved channel 20 can branch off from the first grooved channel 19 at a height in which the support pin 16 lies when the support pin 16 engages with its pin head 16 ain the first grooved channel 19 and the decorative element 14 is in its holding position, in particular when the decorative element 14 is supported on the respective shoulder 21 of the door 13 via the at least one fitting part 18 or via the first fitting part 18, 1 and the second fitting part 18.2.In the case of the second variant embodiment according to FIGS. 7 and 8, the second slot channel 20 does not extend in a horizontal direction but in a downward direction away from the vertical first slot channel 19, as shown in FIG. 7, in such a way that the support pin 16 is guided through the second slot channel 20 both in a horizontal directional component and in a vertically downward directional component when the support pin 16 moves from its holding position into the locking position and in the process revolves an upwardly pointing corner protrusion 24 of the receiving slot body 17 between the first slot channel 19 and the second slot channel 20.In the second variant embodiment according to FIG. 7, the second groove channel 20 has a distal groove end 20 bin this respect, which lies lower in the vertical direction than an upper edge of the corner projection 24, wherein the distal groove end 20 bis arranged in a height position in which the support pin 16 lies (FIG. 8 ) when the support pin 16 engages with its pin head 16 ain the second groove channel 20, in particular in the distal groove end 20 band the decorative element 14 is in its locking position, in particular when the decorative element 14 is supported via the fitting part 18 or via the first fitting part 18, 1 and the second fitting part 18.2 on the respective shoulder 21 of the door 13.In the second variant embodiment according to FIGS. 7 and 8, the decorative element 14 can accordingly not be easily displaced from the holding position into the locking position by an exclusive horizontal sliding movement. Rather, the decorative element 14 must be slightly raised during a displacement movement into the locking position, so that the support pin 16 can slide over the upper edge of the corner projection 24 when the support pin 16 is intended to pass from the first groove channel 19 into the second groove channel 20 due to the displacement of the decorative element 14 into the locking position.By means of the corner projection 24 and the sloping second groove channel 20, an additional securing is provided in comparison with a purely horizontally running groove channel, as is realized in the first embodiment variant according to FIG. 5, which helps prevent the support pin 16 or the decorative element 14 from automatically returning in an undesired manner from the locking position in the second groove channel 20 back into the holding position in the first groove channel 19. The dead weight of the decorative element 14 contributes to the securing against undesired release from the locking position. Once the respective support pin 16 has arrived in the distal groove end 20 bof the second groove channel 20, the decorative element 14 is in its final assembly position, in which the decorative element 14 is fastened to the front side of the door 13 in a manner identical to the contour of the door 13.In the case of the third variant embodiment according to FIGS. 9 and 10, the second slot channel 20 branching off from the first slot channel 19 is provided with a latching means 25 which is designed to retain the support pin 16 within the second slot channel 20 when the support pin 16 is moved from its holding position in the first slot channel 19 into its locking position into the second slot channel 20 in order to prevent undesired return movement of the support pin 16, out of the second slot channel 20 and back into the first slot channel 19.As is shown in FIGS. 9 and 10, the latching means 25 can comprise a latching hook or a latching nose which is mounted in a spring-biased manner and which projects into the second grooved channel 20 in an unstressed state. The latching hook or the latching lug projecting into the second groove channel 20 thus retains the support pin 16 in the second groove channel 20 when the shank portion of the support pin 16 wishes to leave the second groove channel 20 and is positively prevented from this by the latching hook or the latching lug. On a side facing the first groove channel 19, the latching hook can have a bevel which causes the latching hook to be pressed out of the second groove channel 20 against its prestressing force when a support pin 16 coming from the first groove channel 19 runs against the latching hook when it wishes to pass into the second groove channel 20. Thus, the support pin 16 can easily pass from the first groove channel 19 into the second groove channel 20, but no longer come out of the second groove channel 20 into the first groove channel 19 again. The latching hook or the latching lug can be produced together with a spring-elastic tongue section, in particular as a plastic injection-molded part, integrally together with the receiving groove body.

Claims

Domestic appliance having a base body (12) and a door (13) mounted on the base body (12), on the front side of which a decorative element (14) is fastened by means of at least one fastening device (15, 15.1, 15.2), wherein the at least one fastening device (15, 15.1, 15.2) comprises: - a support pin (16) having a pin head (16a) which has a depositing surface (16b), and having a first connecting means (16c) which connects the support pin (16) to one component of the two components of decorative element (14) and door (13), - a receiving groove body (17) which is connected to the other component of the two components of decorative element (14) and door (13) and has an undercut first groove channel (19), the support pin is designed for guiding the pin head (16a) of the support pin (16) along the first groove channel (19) in a vertical direction when the support pin (16) engages in the undercut first groove channel (19) of the receiving groove body (17) in an assembly position, in such a way that the pin head (16a) is vertically displaceable in the vertical direction from a placement position into a holding position along the first groove channel (19) relative to the receiving groove body (17), wherein - the receiving groove body (17) has an undercut second groove channel (20) branching off from the first groove channel (19), which is arranged running transversely to the first groove channel (19) and is designed for locking the pin head (16a) of the support pin (16) against vertical displacement relative to the receiving groove body (17), when the support pin (16) engages in the second groove channel (20) in a locking position moved out of its holding position from the first groove channel (19), such that the pin head (16a) is secured against vertical displacement along the first groove channel (19) relative to the receiving groove body (17).Domestic appliance according to claim 1, characterised in that the fastening device (15, 15.1, 15.2) comprises a fitting part (18.18.1, 18.2) which is arranged separately from the support pin (16) and the receiving groove body (17) and is fastened to the decorative element (14) and which is designed, in cooperation with a shoulder (21) arranged on the door (13), to bear against vertical lowering of the decorative element (14) relative to the door (13) both in the holding position of the support pin (16) and in the locking position of the support pin (16) on the shoulder (21) of the door (13).Domestic appliance according to claim 2, characterised in that the fitting part (18.18.1, 18.2) of the decorative element (14) and the shoulder (21) of the door (13) are designed to be coordinated with one another in such a way that the fitting part (18.18.1, 18.2), while being supported in the vertical direction on the shoulder (21) of the door (13), is mounted so as to be adjustable relative to the shoulder (21) in a horizontal direction between the holding position and the locking position of the decorative element (14).Domestic appliance according to one of claims 1 to 3, characterised in that the vertically extending first groove channel (19) has at its upper end portion an extended insertion opening (22) which is designed for inserting the pin head (16a) of the support pin (16) into the first groove channel (19) in an insertion direction leading along the axial extension of the support pin (16) perpendicular to the longitudinal extension of the first groove channel (19) until the pin head (16a) can penetrate into the first groove channel (19) to such a depth that the undercut surface (16b) of the pin head (16a) lies behind at least one undercut web (23) of the first groove channel (19), so that the pin head (16a) when the support pin (16) is moved vertically downwards from its attachment position in the first groove channel (19), with its undercut surface (16b) supported behind the web (23) in order to prevent the support pin (16) from being released from the first grooved channel (19) in a direction which leads counter to the insertion direction.Domestic appliance according to one of claims 1 to 4, characterised in that the second groove channel (20), in its mouth section (20a) into the first groove channel (19), has a groove width widening in the direction of the first groove channel (19).Household appliance according to one of claims 1 to 5, characterised in that the second groove channel (20) extends away from the vertical first groove channel (19) in a horizontal direction.Domestic appliance according to claim 6, characterised in that the second groove channel (20) branches off from the first groove channel (19) at a height in which the support pin (16) lies when the support pin (16) engages with its pin head (16a) in the first groove channel (19) and the decorative element (14) is in its holding position, in particular when the decorative element (14) is supported via the fitting part (18.18.1, 18.2) on the shoulder (21) of the door (13).Domestic appliance according to one of claims 1 to 5, characterised in that the second groove channel (20) extends away from the vertical first groove channel (19) in a downward direction such that the support pin (16) is guided through the second groove channel (20) both in a horizontal directional component and in a vertically downward directional component when the support pin (16) moves from its holding position into the locking position and in the process revolves an upwardly pointing corner projection (24) of the receiving groove body (17) between the first groove channel (19) and the second groove channel (20).Domestic appliance according to claim 8, characterised in that the second groove channel (20) has a distal groove end (20b) which is lower in the vertical direction than an upper edge of the corner projection (24), wherein the distal groove end (20b) is arranged at a height position in which the support pin (16) lies when the support pin (16) engages with its pin head (16a) in the second groove channel (20) and the decorative element (14) is in its locking position, in particular when the decorative element (14) is supported via the fitting part (18.1.18.2) on the shoulder (21) of the door (13).Domestic appliance according to one of claims 1 to 9, characterised in that the second groove channel (20) branching off from the first groove channel (19) is provided with a latching means (25) which is designed to retain the support pin (16) within the second groove channel (20) when the support pin (16) is moved from its holding position in the first groove channel (19) into its locking position in the second groove channel (20) in order to prevent an undesired return movement of the support pin (16) from the second groove channel (20) into the first groove channel (19).Household appliance according to one of claims 2 to 10, characterised in that the decorative element (14) is formed by a rectangular or square plate, which has an outer side (14a) which carries the decorative element and a rear side (14b), to which a first fastening device (15.1) is coupled at a left upper corner region and to which a second fastening device (15.2) is coupled at a right upper corner region, wherein a first fitting part (18.1) is fastened to a left lower corner region of the rear side (14b), which fitting part is arranged at a distance from the first fastening device (15.1) and is associated therewith, and a second fitting part (18.2) is fastened to a right lower corner region of the rear side (14b), which fitting part is arranged at a distance from the second fastening device (15.2) and is associated therewith.Domestic appliance according to one of claims 1 to 1, characterised in that the domestic appliance (1) is a dishwasher (1a), a refrigerating appliance, a washing machine or a tumble dryer.

Citation Information

Patent Citations

  • US000010470641B2