EP3890557A1 - Appareil ménager - Google Patents

Appareil ménager

Info

Publication number
EP3890557A1
EP3890557A1 EP19835358.3A EP19835358A EP3890557A1 EP 3890557 A1 EP3890557 A1 EP 3890557A1 EP 19835358 A EP19835358 A EP 19835358A EP 3890557 A1 EP3890557 A1 EP 3890557A1
Authority
EP
European Patent Office
Prior art keywords
height
adjustable
household appliance
housing
threaded shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP19835358.3A
Other languages
German (de)
English (en)
Inventor
Karlheinz Rehm
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
Original Assignee
BSH Hausgeraete GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Publication of EP3890557A1 publication Critical patent/EP3890557A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B91/00—Feet for furniture in general
    • A47B91/02—Adjustable feet
    • A47B91/022—Adjustable feet using screw means
    • A47B91/028—Means for rotational adjustment on a non-rotational foot
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4251—Details of the casing
    • A47L15/4253—Supporting arrangements for the casing, e.g. rollers or supporting legs
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/12—Casings; Tubs
    • D06F39/125—Supporting arrangements for the casing, e.g. rollers or legs

Definitions

  • the invention relates to a household appliance, in particular a
  • Household dishwasher or household washing machine with a housing having an underside, wherein several height-adjustable feet are arranged on the underside of the housing, each height-adjustable foot being height-adjustable with the height-adjusting device from a side wall of the household appliance, and wherein each height-adjusting device is made from one in one housing-fixed adjustable housing guided and vertical threaded shaft with foot plate.
  • household appliance is understood in principle to mean any household appliance which has a disclosed one
  • the household appliance is therefore not only limited to a household dishwasher or a household washing machine, it can also be a tumble dryer, a refrigerator, a freezer, a stove, a microwave, a coffee machine or the like.
  • Device feet usually by means of an adjustment rod that can be operated on the front of the device.
  • the publication DE 196 06 460 A1 discloses a height adjustment device for an adjustable foot of a household appliance.
  • the height adjustment device consists of a vertical threaded shaft with foot plate, which is guided in a housing-fixed adjustable housing, whereby a nut rotatably mounted in the adjustable housing is screwed over the threaded shaft, which is designed on its outer circumference as a worm wheel and via a connected to an adjusting rod in which
  • Adjustable housing rotatably mounted worm is driven.
  • the threaded shaft of the height-adjustable adjustable foot is guided in a form-fitting manner in the adjustable housing.
  • the publication WO 2004/107914 A1 discloses a height adjustment device for a device base of a household appliance, in which a worm wheel with a Transmission gear is in meshing gear, which transmits the rotary movement of the screw into a lifting movement of the device base.
  • the publication WO 2009/068399 A1 discloses a household appliance, in particular a dishwasher or washing machine, with a height adjustment device for a device base, which has at least one drive gearwheel which engages with the
  • Rotational movement of the drive gear in a stroke movement of the transmission base transmitting transmission gear is in mesh.
  • the drive gear is an evasive movement when a limit torque is exceeded
  • Associated torque limiting element that releases the tooth engagement between the drive gear and the transmission gear.
  • an object of the present invention is to provide an improved household appliance, in particular a household dishwasher or a household washing machine.
  • a household appliance in particular a domestic dishwasher or washing machine, is proposed with a housing having an underside, several height-adjustable adjustable feet being arranged on the underside of the housing, each height-adjustable adjustable foot with the height-adjusting device from a side wall of the household appliance is adjustable and each
  • Height adjustment device consists of a vertical threaded shaft with foot plate which is guided in a housing-fixed adjustment housing.
  • Threaded shaft is a worm gear rotatably mounted in the adjustment housing and designed as a nut, which is designed on its outer circumference as an output gear and which is connected via an adjustment rod, preferably rotatably mounted in the adjustment housing, and as
  • the threaded shaft of each adjustable foot is positively guided in the adjustable housing, wherein either the threaded shaft of the height-adjustable adjustable foot has at least partially at least one flattening along the length of the threaded shaft, which lies against the adjustable housing at at least one point, the threaded shaft of the height-adjustable adjustable foot has two flats and the two
  • Flattenings are arranged on opposite sides of the threaded shaft, or the threaded shaft of the height-adjustable adjusting foot is equipped with two axially extending grooves and the two grooves are arranged on opposite sides of the threaded shaft.
  • Height adjustment devices for all height adjustable feet can be any height adjustment devices for all height adjustable feet.
  • Tool approaches for just a single tool such as a
  • the household appliance can thus be set up and aligned easily and reliably with a single tool. This leads to a safe, faster and intuitive installation of the household appliance. This possibility of positioning also offers an additional feature for a "Perfect Built-In" marketing requirement.
  • Adjustment housing can be made much smaller in a height adjustment device according to the invention, since it does not have to overlap the threaded shaft.
  • the height adjustment device can be used in particular on the feet of built-in devices.
  • a height adjustment is carried out with an actuator provided on the front of the household appliance.
  • the actuator sits on an adjustment rod that extends to the height adjustment device.
  • the rear end of the adjusting rod can carry the worm, for example a drive gear, which in turn meshes with a worm wheel of the transmission gear.
  • the worm wheel is fixed in a bearing housing and has an internal thread that engages with an external thread of the device foot shaft. When the worm wheel rotates, the device base is lifted.
  • the height adjustment device can be used in particular for rear feet of built-in devices. With the height adjustment device, the inaccessible rear area of the built-in device can be raised until the
  • Household appliance has reached a correct height position. Especially at
  • At least three height-adjustable feet are arranged on the underside of the housing, two height-adjustable feet being arranged on the front of the household appliance and at least one height-adjustable foot being arranged on the rear of the household appliance. For example, on the back of the
  • Household appliance in the corner areas of the household appliance each have a further adjustable foot.
  • Operable height adjustment device is the effort in a household appliance and thus the costs are reduced.
  • more than three height-adjustable feet can be provided on the household appliance in a wide variety of configurations.
  • the height-adjustable adjusting foot arranged on the rear of the household appliance is arranged approximately in the middle of the lower rear housing edge of the household appliance.
  • the arrangement of the adjustable foot on the rear, approximately in the middle of the lower rear edge of the housing, creates a support with the outline of an approximately isosceles triangle, the most stable support form of a three-point support.
  • the flattened areas abut the adjusting housing at at least two points.
  • the arrangement of two flats further improves the prevention of the height-adjustable adjusting foot from rotating during the adjustment process.
  • the flats are expediently arranged on opposite sides of the threaded shaft, which makes assembly easier.
  • the flats on the adjustment housing abut at least two points, whereby a further additional safeguard against the turning of the height-adjustable adjusting foot was created.
  • the flats extend over the entire length of the threaded shaft.
  • the threaded shaft of the height-adjustable adjustable foot is equipped with at least one axially extending groove, which is also a very simple one
  • the threaded shaft of the height-adjustable adjustable foot is preferably equipped with two grooves, which further improves the prevention of the height-adjustable adjustable foot from rotating during the adjustment process.
  • the grooves are expediently arranged on opposite sides of the threaded shaft, which makes assembly easier.
  • the adjustment housing has at least one outlet opening for the threaded shaft of the height-adjustable adjusting foot, which has a cross section of the
  • Threaded shaft adapted shape is formed.
  • the threaded shaft leaves the adjustment housing not only at the point opposite the floor, but also at a point opposite the base plate, so that a positive fit at these two points Leadership in the manner described can be realized without additional effort.
  • a further height-adjustable adjusting foot is arranged on the back of the household appliance in the corner regions of the household appliance.
  • the user thus advantageously has the possibility of presetting before the final installation of the household appliance in a furniture front, for example a corresponding niche in one, with the four adjustable feet which are arranged in the region of the outer, lower housing edges
  • the household appliance can optionally be set up on four or three height-adjustable feet. Because should
  • the default setting is also correct for the final installation location
  • the screw enables the screw to move out of its operating position when a limit torque is exceeded
  • Torque limiting element is assigned, which releases the tooth engagement between the worm and the worm wheel.
  • the snail can evade - in relation to that Transmission gear element - skip at least one pitch, which relieves the teeth of the worm and the transmission gear element.
  • the worm's evasive movement can thus take place when a permissible maximum torque is exceeded.
  • the permissible maximum torque is to be determined depending on the design of the torque limiting element and on its material strength.
  • the permissible maximum torque is to be designed so that the worm, the transmission gear and / or the
  • Worm driving shaft or adjustment rod must not be damaged.
  • the torque limiting element according to the invention as in the case of a slip clutch, the worm is briefly disengaged when the maximum torque is exceeded, so that it rotates empty and no
  • the worm meshes again with the transmission gear.
  • the torque limiting element is reliable
  • Height adjustment device is moved against an end stop, as is the case in the prior art. Rather, it is ensured according to the invention that there is a torque limitation over the entire adjustment range of the device base shaft.
  • the height adjustment device can be used, in particular, for device feet on the rear of built-in devices.
  • the height adjustment device when using plastic components for the height adjustment device, there is a risk in the prior art that by manually actuating the height adjustment device
  • the worm presses against the torque limiting element with a deflection force that arises during torque transmission.
  • the torque limiting element ideally yields elastically, as a result of which the worm's evasive movement takes place. To this The worm skips over the teeth of the worm wheel, whereupon the elastically recessed torque limiting element shifts the worm back into tooth engagement with the worm wheel. This skipping of the teeth is perceptible as a chattering noise, so that the user receives feedback that the household appliance is hitting a stop, for example an upper kitchen worktop.
  • the torque limiting element can be deflected elastically.
  • the worm is preferably designed in such a way that when torque is transmitted to the transmission gear, a deflection force is generated between the worm and the worm wheel of the transmission gear, with which the worm is pressed against the torque limiting element. It can
  • Limiting element can be designed to be elastically deflectable.
  • the mentioned deflection force is caused by correspondingly angled teeth of the worm and / or
  • the torque limiting element is a housing part of the adjustment housing in which the worm is rotatably mounted, or that the torque limiting element is made of the same material and / or in one piece with a base support base of the base support of the household appliance, the base support base of the base support together with the torque limiting element is preferably a plastic injection molded part.
  • the torque limiting element is a housing part of the adjusting housing in which the screw is rotatably mounted, or if the torque limiting element is made of the same material and / or is integral with a base support base of the base support of the household appliance.
  • Base support base of the base support serves to support equipment units. It can be used together with the torque limiting element
  • the compensating movement of the worm can take place in a direction transverse to the axis of rotation of the worm wheel.
  • the torque limiting element can be brought into contact with the outer gear contour of the worm.
  • the torque limiting element can be brought into contact with a shaft driving the worm.
  • a shaft driving the worm it is preferred if that
  • Torque limiting element can be brought directly into contact with the outer gear contour of the worm.
  • the worm meshes with the worm wheel and in particular the axis of rotation of the worm is perpendicular to the axis of rotation of the worm wheel.
  • the torque limiting element is made of the same material and / or in one piece with a base support base of the base support of the household appliance.
  • the base support base of the base support serves to support equipment units. He can together with the
  • Torque limiting element can be made as a plastic injection molded part.
  • the compensating movement of the worm can take place in a direction transverse to the axis of rotation of the worm wheel.
  • the torque limiting element is a spring rib.
  • Such a spring rib has a protruding and free end, which can be designed to be elastically deflectable in a simple manner in terms of production technology even with little effort.
  • Fig. 1 is a schematic perspective view of an embodiment of a
  • Fig. 2 is a schematic perspective view of a first preferred embodiment
  • Fig. 3 is a sectional side view through an adjustment housing
  • Height adjustment device for a height adjustable foot of a household appliance according to the invention
  • Fig. 4 is a sectional front view through an adjustment housing
  • Height adjustment device for a height adjustable foot of a household appliance according to the invention
  • Fig. 5 is a plan view of the height adjustment device for one
  • Fig. 6 is a plan view of the height adjustment device for one
  • Fig. 7 is a schematic partial perspective view of a second preferred embodiment
  • Fig. 8 is an enlarged sectional view from above a front
  • FIG. 9 is an enlarged partial sectional view of a height adjustment device along the sectional plane II-II of FIG. 7;
  • Fig. 10 is a detailed perspective view of a height adjustment device of a household appliance according to the invention.
  • elements that are the same or have the same function are the same.
  • the household dishwasher 1 shows a schematic perspective view of an embodiment of a household dishwasher 1.
  • the household dishwasher 1 comprises a washing container 2, which is particularly watertight through a door 3
  • the rinsing container 2 is preferably cuboid.
  • the washing container 2 can be arranged in a housing of the domestic dishwasher 1.
  • the washing container 2 and the door 3 can form a washing chamber 4 for washing dishes.
  • the door 3 is shown in its open position in FIG. 1.
  • the door 3 can be closed or opened by pivoting about a pivot axis 5 provided at a lower end of the door 3. With the help of door 3 one
  • Feed opening 6 of the washing compartment 2 can be closed or opened.
  • the washing compartment 2 has a base 7, a cover 8 arranged opposite the base 7, a rear wall 9 arranged opposite the closed door 3 and two side walls 10, 11 arranged opposite one another.
  • the bottom 7, the ceiling 8, the rear wall 9 and the side walls 10, 11 can for example be made of a stainless steel sheet.
  • the bottom 7 can be made of a plastic material, for example.
  • the household dishwasher 1 also has at least one washware receptacle 12 to 14.
  • washware receptacle 12 to 14 Preferably, for example three, washware receptacles 12 to 14 can be provided, the washware receptacle 12 being a lower one
  • washware holder 13 is an upper one
  • Cutlery drawer can be. As FIG. 1 also shows, the
  • Washware receptacles 12 to 14 are arranged one above the other in the washing compartment 2. Each washware receptacle 12 to 14 can either be moved into or out of the washing tub 2. In particular, each washware receptacle 12 to 14 can be pushed into the washing compartment 2 in an insertion direction E (arrow) and can be pulled out of the washing compartment 2 in a pull-out direction A (arrow) against the insertion direction E (arrow).
  • the lower washware receptacle 12 is also closed later explanatory lifting device from an initial position to an end position, in which it is preferably arranged in front of the upper washware receptacle 13 and at the same height as this.
  • the washing container 2 of the household dishwasher 1 is placed on a base support 15, with the one formed on the base support 15
  • Household dishwasher 1 is arranged.
  • the household dishwasher generally comprises a housing 18 which is equipped on the underside 18U (see FIG. 2) with, in particular, height-adjustable adjustable feet 19, 19 ′, 19 “(see FIG. 2).
  • the underside 18.U (see FIG. 2) of the housing is in particular the underside of the base support base 16 of the base support 15.
  • FIG. 2 shows a schematic perspective view of a first preferred
  • the household appliance 1 comprises a housing 18, which is shown in the
  • Embodiment on the underside 18.U is equipped with three height-adjustable feet 19, 19 ', 19 ".
  • the height-adjustable adjustable feet 19 (on the front; indicated by dashed lines), 19 ′′ (on the front; indicated by dashed lines), 19 “(on the back) are adjustable in their respective heights.
  • the three height-adjustable feet 19, 19 ', 19 " are each arranged in the area of the outer, lower housing edges 20.
  • the height-adjustable adjusting foot 19 ′′ arranged on the rear of the household appliance 1 is arranged approximately in the middle of the lower rear housing edge 20 of the household appliance 1.
  • the three adjustable feet 19, 19 ', 19 are each one
  • Height adjustment device 21, 2T in the embodiment shown from the front 22 of the household appliance 1, adjustable in height.
  • Each adjustable foot 19, 19 ', 19 “comprises a threaded shaft 23, 23' (indicated by dashed lines on the front) and a foot plate 24 firmly connected to it (see also FIGS. 3, 4 and 9).
  • the respective threaded shaft 23, 23 'of the height-adjustable adjustable feet 19, 19', 19 is guided vertically in an adjustable housing 25, 25 'of the height-adjusting device 21, 21'.
  • About the threaded shaft 23, 23 ' is in each
  • Worm gear 26 (see also FIGS. 3 to 6 and 9) screwed, which is designed as an output gear on its outer circumference and which is connected in the adjustment housing 25, 25 via an adjustment rod 28 (indicated by dashed lines on the front; see also FIG. 4) 'rotatably mounted screw 27 (see also Fig. 4 and 9) is driven.
  • the respective adjustment rod 28 (see also FIG. 4) is in the housing 18 of the
  • Household appliance 1 guided in a manner not explained in detail and extends to the front 22 of the household appliance 1, where it has, for example, a slot for a screwdriver, a polygon for an open-ended wrench or the like for the user to operate the height adjustment device 21, 21 'according to the invention having.
  • the respective threaded shaft 23, 23 ′′ of the height-adjustable adjustable feet 19, 19 ′′, 19 ′′ is in the adjustment housing 25, 25 ′′ to prevent the
  • 3 and 4 show two views, a side view and a front view, through an adjustment housing 25 of the height adjustment device 21 for one
  • the threaded shaft 23 (see also FIG. 5) has two flats 29 arranged on opposite sides (see also FIG. 5) for the purpose of positive guidance of the threaded shaft 23 of the height-adjustable adjusting foot 19, 19 ', 19 ′′, which flanges on the adjusting housing 25 two digits, namely an upper one
  • Outlet opening 30 (see also FIG. 5) and a lower outlet opening 31 (see also FIG. 5), which are designed to achieve the form-fitting guide with a shape adapted to the cross section of the threaded shaft 23.
  • the adaptation of the shape of the outlet openings 30, 31 (see also FIG. 5) to the Cross-sectional shape of the threaded shaft 23 is achieved in that the circular shape of the outlet openings 30, 31 (see also FIG. 5) by means of opposing ones
  • Circular sections 32 (see also FIG. 5) was cut off with straight chords.
  • the flats 29 extend over the entire length of the threaded shaft 23.
  • FIG. 5 shows a top view of the height adjustment device 21 arranged in an adjustment housing 25 for a height-adjustable adjustable foot 19, 19 ', 19 ”of the household appliance 1 according to the invention according to FIGS. 3 and 4.
  • FIG. 6 shows a plan view of the height adjustment device 21 'arranged in an adjustment housing 25' for a height-adjustable adjustable foot 19, 19 ', 19' 'of a second embodiment of a household appliance 1 according to the invention.
  • the threaded shaft 23 ' For the purpose of positive guidance of the threaded shaft 23 'of the height-adjustable adjusting foot 19, 19', 19 '', the threaded shaft 23 'has grooves 33 on opposite sides, into which grooves 33 from which the upper outlet opening 30' and the lower outlet opening 31 ', not shown, are shown Protruding lugs 34 projecting in the direction onto the threaded shaft 23 '.
  • a height adjustment device 21 'for a height-adjustable adjustable foot 19, 19', 19" of a household appliance 1 is created in a simple manner, by means of which the costs can be reduced by less effort, which can be operated from a housing side wall, preferably the front side 22 (see also FIG. 2) of the household appliance 1 and in which the height-adjustable adjusting foot 19, 19 ', 19 "is not rotated as well.
  • FIG. 7 shows a schematic partial perspective view of a second preferred embodiment of a household appliance 1 according to the invention
  • FIG. 7 shows a base support 15, which is produced as a plastic injection-molded part, of the household appliance 1 which is only indicated and comprises a housing 18.
  • the housing 18 is equipped on the underside 18U with three height-adjustable adjustable feet 19, 19 ', 19 ".
  • the height of the adjustable feet 19 (on the front; indicated by dashed lines), 19 '(on the front; indicated by dashed lines), 19 “(on the back) are adjustable.
  • the three height-adjustable feet 19, 19 ', 19 " are each arranged in the area of the outer, lower housing edges 20 (see also FIG. 2).
  • Height-adjustable adjustable foot 19 “is approximately in the middle of the lower rear
  • Housing edge 20 of the household appliance 1 is arranged.
  • the three adjustable feet 19, 19 ', 19 are each one
  • Height adjustment device 21, 2T in the embodiment shown from the front 22 of the household appliance 1, adjustable in height.
  • Each height-adjustable adjustable foot 19, 19 ′′, 19 ′′ can be designed like the height-adjustable adjustable foot 19, 19 ′′, 19 ′′ disclosed in FIGS. 2 to 6.
  • the respective threaded shaft 23, 23 ′′ of the height-adjustable adjustable feet 19, 19 ′′, 19 ′′ can be guided vertically in a housing-fixed adjustment housing 25, 25 ′′ (dashed line only for the height-adjustable adjustable foot 19 “) of the height adjustment device 21, 2T.
  • Fig. 8 shows an enlarged sectional view from above a front
  • the height adjustment device 21, 2T (see also FIG. 7) is assigned an adjustment rod 28 (see also FIG. 7) which extends as a drive shaft up to the front side 22 of the base support 15.
  • the front end of the adjusting rod 28 has an adjusting bush 36 which is double-walled in a bearing opening
  • Adjustment bush 36 of the adjustment rod 28 is at the front with a tool attachment 37 (see also FIG. 7) for only a single tool, such as a tool
  • Adjustment rod 28 is driven with its rear end, as already disclosed above, with the
  • the respective height adjustment device 21, 2T has a gear housing 38 which is preferably integrally formed on the base support 15.
  • the gear housing 38 is in a substantially hollow cylindrical shaft housing 39 and in one
  • Snail housing 40 divided.
  • a threaded shaft 23, 23 'of the height-adjustable adjusting foot 19' ' is height-adjustable and arranged in a rotationally fixed manner.
  • the threaded shaft 23, 23 ' has a flattened portion 29 (see also FIG. 10) in the external thread of the threaded shaft 23, 23'.
  • the shaft channel 41 of the shaft housing 39 is also flattened, so that the threaded shaft 23, 23 'can only move in the vertical direction, but not in one direction of rotation.
  • the shaft channel 41 of the shaft housing 39 is divided into two in the vertical direction.
  • the worm wheel 26 is arranged between the two channel sections and is screwed to the threaded shaft 23, 23 '.
  • the axis of rotation 42 of the screw 27 extends horizontally in the depth direction according to the figures, while the axis of rotation 50 of the
  • Threaded shaft 23, 23 ' runs perpendicular to it.
  • the worm housing 40 (see also FIG. 10) is laterally through a
  • Torque limiting element 43 limited.
  • the torque limiting element 43 is a spring rib here, which is molded onto the base support 15 and whose upper end is freely movable. In a non-actuated state of the height adjustment device 21, 2T and in an operating position, the worm 27 is arranged essentially without play between the spring rib 43 of the worm housing part 40 and the worm 27. 9, the adjustment housing 23, 23 'is the
  • Height adjustment device 21, 2T only shown in dashed lines. 10 shows a perspective detailed view of a height adjustment device 21, 21 'of a household appliance 1 according to the invention.
  • the screw 27 is extended with a bearing pin 44 which is rotatably mounted in an elongated hole 45 in the rear wall 46 of the base support 15.
  • a worm wheel 26 (see also FIG. 9) is connected to the worm 27 and the threaded shaft 23, 23 'of the height-adjustable adjusting foot 19' '.
  • the external gears 47 of the worm wheel 26 mesh with the helical one
  • Worm helix 48 of the worm 27 is provided on the inside with an internal thread 49 which engages with the
  • Worm wheel 26 rotated, whereby a lifting movement of the height-adjustable adjustable foot 19 "takes place in the vertical direction.
  • Torque is limited by means of the spring rib 43 if a torque acting on the height adjustment device 21, 21 'exceeds a limit torque.
  • Spring rib 43 presses. In the event of an overload, the spring rib 43 yields elastically, so that the worm 23 executes an evasive movement (arrow III) out of its operating position. This means that the worm helix 48 jumps over the external gears 47 of the worm wheel 26 by one pitch. This skipping is perceived as a chattering sound, so that a corresponding lifting operation of the rear
  • height adjustable foot 19 "can be stopped.
  • the compensating movement (arrow III) of the worm 23 takes place in a transverse direction to the axis of rotation 42 of the worm wheel 26.
  • the elongated hole 45 extends, in which the bearing pin 44 of the worm 23, 23 'is mounted , in the transverse direction.
  • the user presets the three adjustable and adjustable feet 19, 19 ', 19 ”arranged in the area of the outer, lower housing edges 20 (see also FIG. 2) before the final installation of the household appliance 1 Example carried out in a furniture front, for example a corresponding niche in a fitted kitchen front.
  • the household appliance 1 is then brought to the final installation location, for example by being pushed into the niche.
  • the user checks the installation position of the household appliance 1 and, if necessary, avoiding repeated or even repeated pushing in and out, a final adjustment of the installation position by means of the rear height-adjustable adjusting foot 19 ′′ by its height adjustment device 21, 21 ′.
  • the household appliance 1 can optionally be set up on five, four or three height-adjustable feet.
  • the installation remains on the height-adjustable feet 19, 19 ′′, 19 “, i.e. a three-point support. Since the rear height-adjustable adjusting foot 19 "is arranged approximately in the middle of the lower rear housing edge 20, there is a support in this case with the outline of an approximately isosceles triangle, the most stable support form of a three-point support.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Legs For Furniture In General (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)

Abstract

L'invention concerne un appareil ménager (1) comportant un boîtier (18) présentant une face inférieure (18.U), une pluralité de pieds de réglage (5) réglables en hauteur étant disposés sur la face inférieure (18. U) du boîtier (18), chaque pied de réglage (19, 19', 19'') étant réglable en hauteur au moyen du dispositif de réglage en hauteur (21, 21') depuis une paroi latérale (22) de l'appareil ménager (1), chaque dispositif de réglage en hauteur (21, 21') étant constitué d'un arbre fileté (23, 23') perpendiculaire, guidé dans un boîtier de réglage (25, 25') fixé audit boîtier et ayant une plaque de base (24), une roue à vis sans fin (26) montée de manière rotative dans le boîtier de réglage (25, 25') étant vissée sur l'arbre fileté (23, 23'), laquelle roue à vis sans fin (26) est formée sur sa circonférence extérieure comme un engrenage de sortie et est reliée à une tige de réglage (28) au moyen d'une tige de réglage (28), de préférence monté à rotation dans le boîtier de réglage (25, 25'), la tige filetée (23, 23') de chaque pied de réglage (19, 19', 19'') réglable en hauteur étant guidée par complémentarité de formes dans le boîtier de réglage (25, 25'). Soit la tige filetée (23, 23') du pied de réglage (19, 19') réglable en hauteur présente au moins partiellement au moins un aplatissement (29) sur la longueur de la tige filetée (23, 23'), qui s'appuie en au moins un point contre le boîtier de réglage (25, 25'), la tige filetée (23, 23') du pied de réglage (19, 19', 19'') réglable en hauteur présente deux aplatissements (29) et les deux aplatissements (29) sont disposés sur des côtés opposés de la tige filetée (23, 23'), soit la tige filetée (23, 23') du pied de réglage (19, 19', 19'') réglable en hauteur est équipée de deux rainures (33') étendant axialement et les deux rainures (33') sont disposées sur des côtés opposés de la tige filetée (23, 23').
EP19835358.3A 2018-12-06 2019-12-02 Appareil ménager Withdrawn EP3890557A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018221159.0A DE102018221159A1 (de) 2018-12-06 2018-12-06 Haushaltsgerät
PCT/EP2019/083286 WO2020114957A1 (fr) 2018-12-06 2019-12-02 Appareil ménager

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EP3890557A1 true EP3890557A1 (fr) 2021-10-13

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US (1) US11399629B2 (fr)
EP (1) EP3890557A1 (fr)
CN (1) CN113163947B (fr)
DE (1) DE102018221159A1 (fr)
WO (1) WO2020114957A1 (fr)

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ITUA20161495A1 (it) * 2016-03-09 2017-09-09 Leonardo Srl Sistema di regolazione frontale compatto per piedi di livellamento per mobili

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WO2020114957A1 (fr) 2020-06-11
CN113163947B (zh) 2022-08-19
US11399629B2 (en) 2022-08-02
CN113163947A (zh) 2021-07-23
DE102018221159A1 (de) 2020-06-10
US20210378403A1 (en) 2021-12-09

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