Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F24—HEATING; RANGES; VENTILATING
  • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
  • F24C7/00—Stoves or ranges heated by electric energy
  • F24C7/08—Arrangement or mounting of control or safety devices
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F24—HEATING; RANGES; VENTILATING
  • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
  • F24C7/00—Stoves or ranges heated by electric energy
  • F24C7/08—Arrangement or mounting of control or safety devices
  • F24C7/082—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination
  • F24C7/083—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination on tops, hot plates
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F24—HEATING; RANGES; VENTILATING
  • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
  • F24C15/00—Details
  • F24C15/10—Tops, e.g. hot plates; Rings
  • F24C15/102—Tops, e.g. hot plates; Rings electrically heated
  • F24C15/105—Constructive details concerning the regulation of the temperature
• • G—PHYSICS
  • G05—CONTROLLING; REGULATING
  • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
  • G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
  • G05G1/08—Controlling members for hand actuation by rotary movement, e.g. hand wheels

Definitions

• the present invention relates to a control knob for a household appliance.
• Domestic appliances may have rotatable or depressible control knobs for operating the same. These operating knobs can be mounted on a control panel of the household appliance. For different control panels with different thicknesses, different configurations of control knobs may be required.
• an object of the present invention is to provide an improved control knob for a household appliance.
• the operating knob comprises an actuating device, an intermediate piece and a
• Actuator and the fastening device arranged intermediate piece to be attached to a control panel of the household appliance, wherein the
• Fastening device has at least two mutually axially spaced gripping portions, which are adapted to selectively engage behind operating panels with differing thicknesses.
• the fastening device comprises a plurality of axially spaced-apart gripping portions
• differently thick control panels can be provided with one and the same embodiment of the control knob. This allows a simplified variant formation in the development of household appliances. Furthermore, it is not necessary to maintain different operating knobs for different thicknesses of operating panels.
• the household appliance for example, a
• the control panel may be a cooktop panel or part of a cooktop panel of the household appliance.
• the control panel can also be part of a
• each gripping section has at least two gripping arms.
• the number of gripper arms is arbitrary.
• each gripping section may comprise three or four gripping arms.
• the gripping arms are in pairs each other
• the gripping arms are elastically deformable.
• the gripping arms are made of a plastic material.
• Fastening device is preferably formed centrein Glag.
• the fastening device may be a low-cost plastic injection-molded component.
• the gripper arms are L-shaped.
• the gripping arms preferably have a first section extending out of an annular base section of the fastening device and a second section extending perpendicularly out of the first section.
• both sections are resiliently deformable.
• the gripping arms are radially spreadable and compressible with respect to a central axis of the fastening device. This reliably ensures that the gripping arms rest against an inner wall of an opening provided in the control panel.
• elastically deformable gripping arms can also be achieved a tolerance compensation.
• the gripper arms which do not engage behind the control panel, are adapted to center the fastening device in an opening provided in the control panel.
• the gripping arms which are arranged within the aperture, are adapted to center the fastening device in the aperture.
• the gripping arms are adapted to
• the fastening device has an annular base portion, on which are arranged out of this radially outwardly extending snap hook.
• the snap hooks are preferably formed in one piece with the base portion and the gripping portions.
• the snap hooks are preferably arranged distributed uniformly over a circumference of the base portion.
• the snap hooks extend radially away from the central axis of the fastener.
• the intermediate piece has an annular groove-shaped receiving portion for receiving the snap hooks.
• the intermediate piece is preferably at the
• the intermediate piece may be a sealing device for sealing the actuating device relative to the control panel.
• the snap hooks are elastically deformable.
• the intermediate piece is tubular.
• the intermediate piece is rotationally symmetrical.
• the intermediate piece may be made of a silicone material.
• the intermediate piece is axially compressible.
• the actuating device can be displaced or pressed in an axial direction onto the control panel.
• the actuating device is rotatable relative to the intermediate piece.
• the actuator slides during rotation on the intermediate piece.
• the actuating device has a
• Receiving portion for receiving an operating shaft of the household appliance.
• the receiving portion preferably extends rearwardly out of a base portion of the actuating device.
• the receiving portion may be tubular.
• a spring element for bracing the actuating device with the actuating shaft is provided in the receiving portion.
• the actuating shaft has a circular cross-section.
• Actuating shaft may have a lateral flattening, in which engages the spring element.
• the spring element is received in a receiving pocket provided in or on the receiving portion.
• control knob is based on preferred
• FIG. 1 shows a schematic perspective view of an embodiment of a control knob
• FIG. 2 shows a schematic plan view of the operating knob according to FIG. 1
• FIG. 3 shows a schematic side view of the operating knob according to FIG. 1
• FIG. 2 shows a schematic plan view of the operating knob according to FIG. 1
• FIG. 3 shows a schematic side view of the operating knob according to FIG. 1
• FIG. 2 shows a schematic plan view of the operating knob according to FIG. 1
• FIG. 3 shows a schematic side view of the operating knob according to FIG. 1
• FIG. 4 shows a schematic side view of a further embodiment of an operating knob
• FIG. 5 shows a further schematic side view of the operating knob according to FIG. 4
• FIG. 6 shows a further schematic side view of the operating knob according to FIG. 4
• FIG. 7 shows a schematic partial sectional view of the operating knob according to FIG. 1;
• FIG. 8 shows a schematic exploded view of the operating knob according to FIG. 1;
• FIG. 9 shows a further exploded view of the operating knob according to FIG. 1;
• FIG. and FIG. 10 shows a schematic sectional view of the operating knob according to FIG. 1.
• FIG. 1 shows a schematic perspective view of a control knob 1 for a household appliance.
• FIG. 2 shows a schematic plan view of the operating knob 1 and
• FIG. 3 shows a schematic side view of the operating knob 1.
• the domestic appliance For example, a household cooker may be like a gas stove.
• FIGS. 1 to 3 simultaneously.
• the operating knob 1 has an actuating device 2.
• the actuating device 2 preferably has a circular geometry and is cap-shaped.
• a display element 3 for indicating a rotational angular position of the actuator 2 may be provided on the upper side of the actuating device 2.
• the display element 3 may be, for example, a survey, a depression or a print.
• the actuating device 2 can, as shown in FIG. 1 with the aid of an arrow 4, be rotatable.
• the actuating device 2 can be pressed in an axial direction A.
• the actuating device 2 may comprise peripherally arranged operating aids 5.
• the operating aids 5 may be, for example, projections or depressions. The operating aids 5 facilitate the rotation of the actuating device 2.
• the actuating device 2 in the axial direction A in the direction of a control panel 6 of the household appliance can be displaced or pressed.
• the control panel 6 may be part of a housing of the household appliance.
• the control panel 6 may also be a hob plate or part of a hob plate of the household appliance.
• the operating knob 1 has, in addition to the actuating device 2, a fastening device 7 and an intermediate piece 8 arranged between the fastening device 7 and the actuating device 2.
• the intermediate piece 8 may be elastically deformable.
• the intermediate piece 8 may be made of a silicone material.
• the intermediate piece 8 is compressible in the axial direction A.
• the intermediate piece 8 has a cylindrical geometry and is tubular.
• the fastening device 7 is adapted to fasten the intermediate piece 8 arranged between the actuating device 2 and the fastening device 7 on the control panel 6 of the domestic appliance.
• the fastening device 7 has at least two mutually axially spaced gripping sections 9 to 11.
• the number of gripping sections 9 to 1 1 is arbitrary.
• the fastening device 7 may have three gripping sections 9 to 11.
• the axially spaced-apart gripping sections 9 to 1 1 are set up to selectively engage control panels 6 with differing thicknesses di, d 2 , d 3 (FIGS. 4 to 6).
• a first gripping portion 9 is adapted to engage behind a control panel 6 with a thickness di.
• the thickness di is, for example, 0.8 mm.
• a second gripping portion 10 is, as shown in FIG. 5, adapted to engage behind a control panel 6 with a thickness d 2 .
• the thickness d 2 is for example 4 mm.
• a third gripping portion 1 1 is adapted to engage behind a control panel 6 with a thickness d 3 .
• the thickness d 3 is for example 8 mm.
• the embodiment of the operating knob 1 according to FIGS. 4 to 6 differs from the embodiment of the operating knob 1 according to FIGS. 1 to 3 only in that the intermediate piece 8 has no cylindrical geometry but a rounded truncated cone shape.
• Each gripping section 9 to 1 1 has at least two gripping arms 12 to 17.
• the gripping arms 12 to 17 are elastically deformable.
• the gripper arms 12 to 17 are L-shaped.
• the gripping arms 12 to 17 are radially spreadable and compressible.
• the control panel 6 has a bore or opening 19.
• the gripper arms 12, 13, which do not engage behind the control panel 6 and which are arranged within the opening 19, are adapted to center the fastening device 7 in the opening 19.
• the gripper arms 12, 13 of the third gripping portion 11 spread radially into the opening 19.
• the fastening device 7 has an annular base section 20, on which snap hooks 21 projecting radially outward are arranged.
• the number of snap hooks 21 is arbitrary.
• the fastening device 7 may have six snap hooks 21.
• the snap hooks 21 are preferably resiliently deformable and radially compressible and expandable.
• the fastening device 7 is preferably made of a plastic material.
• the fastening device 7 may be a plastic injection-molded component.
• the fastening device 7 is formed in particular centrein Swissig.
• the intermediate piece 8 is preferably also formed rotationally symmetrical to the central axis 18.
• the actuating device 2 may be formed rotationally symmetrical to the central axis 18.
• the annular base section 20 rests on the upper side on a surface 22 (FIG. 3) of the control panel 6.
• a ringnutförmiger receiving portion 23 is provided at the end, in which the snap hooks 21 engage positively.
• the intermediate piece 8 is preferably a sealing device for sealing the actuating device 2 with respect to the control panel 6.
• the intermediate piece 8 is fixed against rotation with the aid of the snap hook 21 on the fastening device 7.
• the intermediate piece 8 also has a circumferential annular groove 24 which is positioned towards the actuating device 2.
• the intermediate piece 8 on the upper side has a circumferential edge portion 25, which is encompassed radially by the cap-shaped actuating device 2.
• the actuating device 2 has a receiving section 26 for receiving an actuating shaft 27 of the household appliance shown in FIG. 10.
• the actuating shaft 27 preferably has a circular cross section and may laterally comprise a flattening 28.
• a spring element 30 may be provided for clamping the actuator 2 with the actuating shaft 27. The spring element 30 received in a provided in the receiving portion 26 receiving pocket 31.
• the spring element 30 When inserting the actuating shaft 27 in the receiving portion 26, the spring element 30 is elastically deformed, whereby this exerts a spring force on the actuating shaft 27. By the spring force, the actuating shaft 27 is held in the receiving portion 26. By defining the spring strength of the spring element 30, a withdrawal force of the actuating device 2 can be adjusted by the actuating shaft 27. From the base portion 29 continues to extend the Receiving portion 26 completely circumferential tubular outer portion 32 out. The outer portion 32 surrounds the edge portion 25 of the intermediate piece 8. On the upper side of the intermediate piece 8, a further annular groove 33 may be provided.
• Characterized in that the fastening device 7 has a plurality of axially spaced-apart gripping portions 9 to 1 1, can be different thicknesses
• Control panels 6 are provided with one and the same embodiment of the control knob 1. This allows a simplified variant formation. Furthermore, it is not necessary to maintain different operating knobs for different thickness di, d 2 , d 3 of control panels 6. Accidental removal of the actuator 2 from the operating shaft 27 is prevented by the spring member 30.
• Withdrawal force for pulling off the actuating device 2 is defined by the spring element 30.
• the spacer 8 ensures a reliable seal. Furthermore, with the help of the elastically deformable gripping portions 9 to 1 1, a horizontal and a vertical tolerance compensation can be achieved.

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• Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Automation & Control Theory (AREA)
• Mechanical Control Devices (AREA)
• Cookers (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=55485028

Family Applications (1)

Country Status (2)

Cited By (2)

Citations (4)

Family Cites Families (1)

• 2015
  • 2015-03-31 ES ES201530439A patent/ES2584960A1/es not_active Withdrawn
• 2016
  • 2016-03-02 WO PCT/IB2016/051170 patent/WO2016157005A1/de active Application Filing

Patent Citations (4)

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