Classifications

• • 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
  • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
  • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
  • H01H25/00—Switches with compound movement of handle or other operating part
  • H01H25/06—Operating part movable both angularly and rectilinearly, the rectilinear movement being along the axis of angular movement
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
  • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
  • H01H9/02—Bases, casings, or covers
  • H01H9/06—Casing of switch constituted by a handle serving a purpose other than the actuation of the switch, e.g. by the handle of a vacuum cleaner
  • H01H9/061—Casing of switch constituted by a handle serving a purpose other than the actuation of the switch, e.g. by the handle of a vacuum cleaner enclosing a continuously variable impedance
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
  • H01H2221/00—Actuators
  • H01H2221/036—Return force
  • H01H2221/044—Elastic part on actuator or casing

Definitions

• the invention relates to a vacuum cleaner with an actuating device for driving electrical components according to the preamble of patent claim 1.
• a vacuum cleaner with an accessible from the outside of the housing actuator which controls a EinVAUSschalter and a potentiometer.
• the EinVAusschalter and the potentiometer while a common actuator button is assigned, which is arranged axially and rotatably on the housing of the vacuum cleaner, wherein the axially movable adjustment of the actuating button actuation of the on / off switch and by the rotatable adjustment of the actuating knob actuation of a rotary potentiometer trained potentiometer takes place.
• a separate from the operating knob operating lever is provided to reset the operating knob from a depressed position to a high position.
• the local actuating lever is provided on a plastic holding part, which is supported on a printed circuit board for electrical components of the vacuum cleaner.
• the disadvantage here however, that spring forces are introduced into the circuit board by a resilient bias of the actuating lever.
• the introduced spring forces can cause material stresses in the printed circuit board, which can lead to breaks in the conductor tracks or the solder contacts of the electrical components. As a result, there are malfunctions of the vacuum cleaner.
• the object of the invention is to make a generic vacuum cleaner reliable.
• the spring element is integrally formed with the actuator and a free end of the spring element is slidably supported on a support wall of the housing part on a circular path.
• Another advantage of the invention is the one-piece design of the spring element with the actuator to see, whereby the vacuum cleaner can be produced in a cost effective manner. Since the spring element is already formed or formed on the actuating device, the assembly step for fastening a separate spring element between actuating device and housing is dispensed with. By the sliding support of the free end of the spring element on the support wall of the housing part, an axial biasing force is reliably introduced into the actuating device, wherein despite integrally formed spring element, the rotational mobility of the actuating device is fully maintained.
• the spring element is designed as a curved in a plane parallel to the axis of rotation of the actuator plane leaf spring.
• the leaf spring-like spring element in this case has a free end, which may be formed in the manner of a sliding shoe, so that on the one hand in the axial direction introduced into the actuator forces are derived via the spring element in the housing part of the vacuum cleaner and on the other hand, the free sliding shoe-like end of the spring element when turning the actuator over a bottom surface of the housing part slides along a circular path, so that the rotational movement of the actuator is not limited by the spring element.
• the orientation of the curved leaf spring within a plane parallel to the axis of rotation causes the resilient movement of the spring element to always take place in a plane tangential to the rotational movement of the actuator.
• a curved design of the spring element is achieved by at least one elastic portion which is bent at an angle.
• the curved spring element can be configured with a bend, so that a U-shaped spring element is formed.
• the curved path of the spring element can also take place on a path with a point of inflection, ie at least two turns are provided so that an S- or Z-shaped shape is created.
• the spring element in a simple form for the spring element but it may also be sufficient to provide only a straight tongue-shaped leaf spring which is arranged to extend at an angle to the bottom surface of the housing part in order to achieve a spring elasticity by bending the tongue-like leaf spring.
• the supporting wall for the spring element can advantageously be formed by a bottom surface of a cup-shaped receptacle on the housing part, into which receptacle the actuating device is inserted.
• a substantially cylindrical design of the actuator is useful. In this case, the actuator does not necessarily have a closed cylindrical surface, but it is sufficient if a central axis portion of the actuator associated with two circular faces, at the circular peripheral edges of a rotatable support is possible.
• the receptacle on the housing part should be cup-shaped.
• cup-shaped is preferably a hollow cylindrical design of the housing part to look at, in which the cylindrical actuator is particularly accurately used.
• Cup-shaped receptacle and cylindrical actuator thereby form a guide or a bearing of the actuator in the housing part, so that the actuating device is rotatable about its central axis and is mounted displaceably in the axial direction.
• the cup-shaped receptacle need not necessarily be formed as a closed cylinder, but may be provided via recesses or openings. Sufficient would also be at least two annular bearing cup-like receptacles on the housing part, which surrounds the supporting at least the end annular disks.
• this has a cylindrical side wall portion with an inwardly projecting lug on which a respect to their contour to the cylindrical side wall portion adapted stop disc of the actuator during assembly in a deviating from the correct mounting angle position angular position and in the right Installation angle passed by.
• the stop disc is preferably formed circular disc-shaped and provided at one point with an outbreak. From the inside of the cylindrical side wall of the cup-shaped receptacle protrudes a projection into the cup-shaped receptacle inside.
• the shape of the projecting lug is the recess on the stop disc of the actuator in - A -
• the stop plate along the cylindrical side wall on the projecting inside approach further into the cup-shaped receptacle, until the actuator comes in its correct installation angle position in its operating position.
• the correct installation angle position is particularly important when the second electrical component is designed as a rotary potentiometer and each rotational position of the actuator must be assigned a specific value of the rotary potentiometer.
• Another advantage of the present invention inwardly projecting approach and the recess on the stop plate is the fact that the actuator can be removed from the cup-shaped receptacle only in their correct installation angle position. This ensures that despite disassembly of the actuator, the second electrical component or the rotary potentiometer assumes its correct mounting position, in which the actuator can also be used functionally in the cup-shaped receptacle.
• the stop disc is formed circular disk-shaped with a recess adapted to the approach.
• a plurality of uniformly or non-uniformly distributed over the circumference of the stop disc recesses or projections may be provided on the cylindrical side wall of the cup-shaped receptacle.
• the cup-shaped receptacle may have at least one latch hook, which engages behind the stop disc of the actuator in the installed position.
• the actuating device is then latched behind the at least one latch hook, so that the actuating device can not be removed from the cup-shaped receptacle without prior release or destruction of the latch hooks.
• the axial height arrangement of the stop disc or the at least one ratchet hooks on the cylindrical side wall of the cup-shaped receptacle is preferably to be chosen so that the spring element is inserted into the cup-shaped receptacle either without any bias or at most only under slight bias. In essence, it should be prevented that the actuator is held in the axial direction without spring preload with game, so that it comes to unwanted rattling noises. On the other hand, it must be avoided that the spring element, which is formed integrally with the actuating device, is already under a clear pretensioning in the rest position of the actuating device.
• the stop disc on an end face for actuating the first electrical component and an axial pin for actuating the second electrical component.
• the first electrical component is preferably designed as an on / off switch and the second electrical component as a rotary potentiometer.
• a key could be actuated which is connected to an electronic controller which, when the key is actuated, continuously increases the power of the vacuum cleaner until the actuator is released.
• a down-regulation of the performance of the vacuum cleaner would then be adjustable, for example, by pulling on the actuator, by pulling the actuator another button is actuated, which is connected to the electrical control and down regulates the performance of the vacuum cleaner accordingly.
• a EinVAuscampus the vacuum cleaner would then, for example, by a rotatable adjustment of the actuator by a certain angle by pressing a rotary switch with the axial pin of the actuator possible.
• the spring element, the stop plate and / or the pin is formed on an actuating device produced in plastic injection molding process. Due to the one-piece molding of the spring element, stop disc and / or pin, on the one hand, the variety of parts is reduced and, on the other hand, the assembly is simplified, since separate assembly steps for fixing the spring element, the stop disc and / or the pin are omitted.
• the spring element may have at least one constriction point for its removal from the actuating device or for the variable adjustment of the spring force.
• the constriction point can preferably be formed in a transition region between the fixed end of the spring element and the Anformstelle on the actuator.
• the constriction point is designed as a so-called predetermined breaking point.
• the cross-section of the plastic part is reduced, ie a thinning in the material thickness is realized, so that upon bending of the spring element over its elastic properties, the spring element preferably breaks away from the actuating device at this predetermined breaking point or constriction point.
• a removal of the molded spring element of the actuator for example, be useful if in a variant of the vacuum cleaner, a spring element with stronger biasing force or with an increased life should be provided. It is then possible to replace the spring element preformed integrally on the actuating device provided in the basic variant by a separate spring element, for example a metallic spring coil.
• a separate spring element for example a metallic spring coil.
• a seat is formed on the actuating device on which the spring coil can be attached during assembly.
• a separate preferably metallic spring coil can not only be used as a replacement after removal of the molded plastic spring, but also be mounted in addition to the integrally molded spring to the actuator. The constriction can not only be used as a predetermined breaking point for removing the molded spring element of the actuator.
• the constriction can be used, for example, for targeted adjustment of the spring force of the molded spring element.
• the spring force of the spring element is essentially not generated by the shape, shape and position of the free element of the spring element, but by the rigidity of the constriction, which acts similar to a film hinge. When thinning the constriction, the spring force decreases, with a thickening of the constriction harder spring properties are achieved for the spring element.
• the invention is described with reference to a single spring element. However, two or more spring elements may also be provided on the actuating device.
• the figure shows an actuating device according to the invention, which is inserted into a cup-shaped receptacle on a housing part of a vacuum cleaner.
• the figure shows a partial section of a housing part 1 of a vacuum cleaner with an actuating device 2.
• a cup-shaped receptacle 3 is formed on the housing part 1.
• the cup-shaped receptacle 3 has a cylindrical side wall section 4.
• a support wall 5 is attached to the cup-shaped receptacle 3.
• the support wall 5 is formed as a circular disk-shaped bottom surface.
• the circular disk-shaped bottom surface has a central opening 6 below which is arranged as a rotary potentiometer second electrical component 7 is arranged.
• a latching hook 8 is formed on the cylindrical side wall portion 4 .
• an elastic tongue 9 is formed on the latching hooks 8 is formed on the latching hooks 8 is formed.
• the ratchet hook 8 has an inclined surface 10, which is formed opposite a latching surface 1 1 to the latching hooks 8. Furthermore, an inwardly projecting lug 12 is provided on the cylindrical side wall section 4, axially above the latch hook 8.
• the actuating device 2 has a circular disk-shaped actuating surface 13. On the actuating surface 13 a plurality of evenly distributed over the circumference Griffrippen 14 are formed.
• the handle ribs 14 are used for Drehverstellen the actuator 2 by hand.
• the grip ribs 14 are designed in the form of circular disk sections which extend in the radial direction. In a center of the actuating surface 13, a switching symbol 15 is attached.
• a radially outwardly projecting pointer 17 is integrally formed on an outer peripheral edge 16 of the actuating surface 13.
• the pointer 17, together with markings on the housing part 1 indicate the currently selected setting of the vacuum cleaner.
• an axially extending web portion 18 connects to the circular disk-shaped actuating surface 13.
• the web portion 18 is formed in cross section substantially cross or star shape.
• a stop plate 19 is provided at one of the actuating surface 13 opposite end of the web portion 18.
• the stop disc 19 is formed substantially circular disk-shaped.
• a recess 20 is attached at one point. The recess 20 is adjusted in size, shape and contour on the cylindrical side wall portion 4 inwardly projecting lug 12.
• the recess 20 is broken away from the kreiusionnförmigen stop plate 19 segment-like.
• the outer edge of the stop plate 19 is engaged behind by the latching surface 1 1 of the latching hook 9.
• a spring element 21 is formed at the stop disc 19.
• the spring element 21 is substantially strip-shaped, wherein a short end of the strip-shaped spring element 21 is formed on the stop plate 19.
• a free end of the spring element 21 is formed U-shaped curved. The free end slides in the installation position of the actuator 2 in the cup-shaped receptacle 3 on a circular path along the support wall 5.
• the axial pin penetrates the opening 6 in the support wall 5.
• a free end of the axial pin 23 brings axially movable but rotatably coupled in the second electrical component 7 a.
• a seat 24 for an additional or alternatively mountable spring coil is provided on the axial pin 23.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Electric Vacuum Cleaner (AREA)
• Mechanical Control Devices (AREA)

Applications Claiming Priority (2)

Publications (1)

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ID=35107080

Family Applications (1)

Country Status (4)

Families Citing this family (3)

Family Cites Families (4)

• 2004
  • 2004-08-24 DE DE200410040983 patent/DE102004040983A1/de not_active Withdrawn
• 2005
  • 2005-08-03 EP EP05777926A patent/EP1784845A1/de not_active Withdrawn
  • 2005-08-03 WO PCT/EP2005/053818 patent/WO2006021492A1/de active Application Filing
  • 2005-08-03 CN CNA2005800286629A patent/CN101006537A/zh active Pending

Non-Patent Citations (1)

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