EP2068224A2 - Dispositif de régulateur rotatif - Google Patents

Dispositif de régulateur rotatif Download PDF

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Publication number
EP2068224A2
EP2068224A2 EP08105411A EP08105411A EP2068224A2 EP 2068224 A2 EP2068224 A2 EP 2068224A2 EP 08105411 A EP08105411 A EP 08105411A EP 08105411 A EP08105411 A EP 08105411A EP 2068224 A2 EP2068224 A2 EP 2068224A2
Authority
EP
European Patent Office
Prior art keywords
shaft
knob
clamping ring
rotary
adjusting
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Withdrawn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
EP08105411A
Other languages
German (de)
English (en)
Other versions
EP2068224A3 (fr
Inventor
Robert Knigge
Michael Beck
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2068224A2 publication Critical patent/EP2068224A2/fr
Publication of EP2068224A3 publication Critical patent/EP2068224A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • G05G1/10—Details, e.g. of discs, knobs, wheels or handles
    • G05G1/12—Means for securing the members on rotatable spindles or the like

Definitions

  • the invention is based on a rotary actuator according to the preamble of the independent claim.
  • knobs are placed on the shafts. So that the knobs do not slip on the shaft during rotation, star waves or shafts with a mating surface, for example a D-wave, are used for the adjusting elements.
  • a positive connection of rotary knob and actuator shaft is achieved (see, for example, Derwent abstract to KR-2005060831 A ).
  • Another requirement for the connection is that a minimum force must be required to remove the buttons from the shaft.
  • a small force for the assembly of the buttons on the shaft is required so that no installation aids must be used.
  • a uniform gap between the button and the surrounding area for example a device front cap or front plate, is required.
  • a first approach is to make the shaft mount of the button with an oversize, so that an interference fit is achieved.
  • this entails the risk that the knob rips when plugged onto the shaft or is pre-damaged and then fails due to aging processes in the field.
  • a self-centering during assembly is limited. Due to the interference fit, the button area which is inserted onto the shaft will bend during assembly and thus no longer abuts the entire surface of the shaft. A slight tilting of the button is possible, it is no longer aligned cleanly aligned with the actuator shaft.
  • a rotary actuator for use as a volume control of a vehicle audio system.
  • This rotary adjusting device has an electric adjusting element with a rotatable shaft for adjusting an electrical parameter.
  • a rotary knob is provided with a shaft, which shaft has a bore for receiving a portion of the shaft, so that the rotary knob is connected by sliding the shaft onto the shaft with this.
  • a clamping ring is provided, which is pushed over the shaft and consequently exerts a clamping force in the radial direction of the shaft.
  • the invention with the features of the independent claim has the advantage that the assembly of the adjusting knob on the shaft of the actuating element is considerably simplified and facilitated in a generic rotary actuator. In particular, it is sufficient for this purpose, postpone the knob in the axial direction on the shaft. There is no separate access to the clamping ring required. This is particularly advantageous in case of subsequent assembly after disassembly of the rotary knob, for example by a user of a device having the rotary actuator, since the device does not have to be disassembled for this purpose. This is readily apparent in particular in such devices of particular advantage, which must be removed before a (partial) decomposition, such as in the case of a car radio or car navigation system from a center console of the vehicle.
  • the clamping ring on its side facing the knob opening a chamfer or phase at which the shaft of the knob starts when pushed onto the shaft.
  • the clamping ring is automatically centered with respect to the shaft upon further pushing the knob on the shaft.
  • the shaft of the rotary knob can be sharpened for this purpose, so that the sharpening when pushing the knob on the shaft penetrates into the opening of the clamping ring and thus centered the clamping ring relative to the shaft.
  • the stopper is advantageously part of a housing front of a device, behind which the positioning element is positioned when the device is mounted.
  • FIG. 1 shows
  • FIG. 1 comprises a control element 3, comprising a body 31 and a shaft 31 rotatably mounted therein.
  • the rotary control element 3 may be, for example, a rotary potentiometer, an electronic encoder or alternatively, for example, a valve, such as a water crane or the like.
  • a knob 2 which is to be mechanically connected to the shaft 32 of the actuating element 3.
  • the knob 2 has a handle 21 in the form of a cap which is connected to a shaft 22.
  • the shaft 22 is hollow drilled (bore 23).
  • the diameter of the hollow bore 23 is matched to the diameter of the shaft 32. This means that the diameters of shaft bore 23 and shaft 32 are at least substantially equal.
  • This knob 2 can be pushed in the axial direction onto the shaft 32 of the actuating element 3, so that the shaft 32 penetrates into the hollow bore 23 of the shaft 22 of the rotary knob 2.
  • the shaft 22 of the rotary knob 2 further advantageously has slots 25 in the longitudinal direction, which serve, inter alia, to compensate for minor differences in the diameter of the hollow bore 23 and the shaft 32.
  • the shaft may advantageously have a collar, not shown in the figure, to which the shaft starts when the button is pushed onto the shaft and thus defines the end position of the knob 2 on the shaft 32.
  • the shaft 32 furthermore has a surface profiling, not shown separately in the figure, for example a star-shaped profile.
  • the hollow bore 23 of the shaft 22 of the knob 2 has a corresponding profiling 24, which is a negative of the profiling of the shaft 32.
  • the profiling 24 engages when pushing the knob on the shaft 32, the profiling 24 in the profiling of the shaft 32, so that there is a positive connection between the knob 2 and actuator shaft 32.
  • slippage of the knob relative to the shaft 32 is avoided with manual rotation of the knob 2.
  • An alternative embodiment of the profiling is possible.
  • a single, engaging both in the shaft and the shaft key can be provided as a slip-through.
  • the rotary actuator according to the invention further comprises a clamping ring 4.
  • This clamping ring 4 has the task to clamp the shaft 22 of the knob 2 on the shaft 32 by exerting a radially acting force and thus secure.
  • the inner diameter of the clamping ring 4 so the diameter of the bore 42 of the clamping ring is slightly smaller than the outer diameter of the shaft 22 dimensioned.
  • a clamping force results on the shaft 22, which is transmitted, inter alia, as a result of the slots 25 in the shaft 22 to the shaft 32.
  • FIG. 2 shows the rotary adjusting device according to the invention in the assembled state.
  • the shaft 32 has penetrated into the hollow bore 23 of the shaft 22 of the rotary knob 2.
  • the shaft 22 has penetrated into the opening of the clamping ring 4.
  • the clamping ring 4 exerts in the manner described a radial force on the shaft 22 and the shaft 32.
  • a stopper 5 is provided according to the invention, the clamping ring 4 in the in FIG. 1 holds position shown and secures against axial displacement when pushing the knob on the shaft.
  • the stopper 5 thus has the task of preventing dodging of the clamping ring 4 upon sliding of the knob on the shaft as a result of the running of the shaft 22 to the opening of the clamping ring 4 and thus ensure the immersion of the shaft 22 in the opening of the clamping ring 4.
  • the stopper 5, on the stop surface 51 of the clamping ring 4 is present, is arranged opposite the adjusting element 3 in a fixed position.
  • the stop 5 may also be formed as part of the actuator body 31.
  • the clamping ring 4 on its the shaft 22 of the knob facing opening 42 a phase or slope 41 on.
  • This phase or slope 41 serves to automatically center the clamping ring 4 when pushing the knob 2 on the shaft 32 relative to the shaft 22 of the knob. This is done by the fact that the end of the shaft 22 when pushing the knob 2 on the shaft 32 starts at the slope 31 and as a result shifts the clamping ring 4 in the radial direction in a relative to the shaft 22 centered position.
  • the components form shaft 32, shaft 22 and clamping ring 4 in the mounted state according to FIG. 2 a press fit.
  • the inner diameter of the clamping ring 4 is selected depending on the desired clamping force and the materials used.
  • the diameter of the clamping ring 4 in the region of the phase 41 is greater than the distance between the clamping ring 4 and the opening of the front cap 6, so that when mounting the knob, the automatic centering of the clamping ring 4 is ensured relative to the shaft 22. It is thus effectively avoided that the shaft 22 of the knob 2 strikes the shoulder of the clamping ring 4 and can not be added.
  • the mounting force is selected by adjusting the clamping force of the clamping ring 4 with respect to the diameter of the shaft 22 and the shaft 32 is greater than the switching force, so that the button 2 is always added in the switched state of the control element 3.
  • the assembly of the rotary adjusting device 1 takes place in the following steps.
  • a first step the clamping ring 4 is inserted into the corresponding bore of the front cap 6.
  • the orientation of the clamping ring is to be considered in such a way that the receiving bore, in the case of the present embodiment, so the hole with the phase 41, the button is facing.
  • the button is pressed onto the shaft 32 until it stops. In this case, the clamping ring 4 itself is centered.
  • the assembly force is initially low and increases only with increasing overlap of the shaft with the clamping ring.
  • the knob Since no bending of the button takes place, since it can be worked without oversize, the knob is directed to the shaft 32 of the control element 3 completely automatically. As a result, there is an exact alignment of the axis of the actuator shaft 32 with the axis of the knob 2.
  • the clamping force is determined by adjusting the diameter, but not over a contour. This also results in the further advantage of a simpler manufacture of the parts resulting in better quality of the assembled button.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Control Devices (AREA)
EP08105411A 2007-11-29 2008-09-23 Dispositif de régulateur rotatif Withdrawn EP2068224A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200710057509 DE102007057509A1 (de) 2007-11-29 2007-11-29 Drehstellvorrichtung

Publications (2)

Publication Number Publication Date
EP2068224A2 true EP2068224A2 (fr) 2009-06-10
EP2068224A3 EP2068224A3 (fr) 2010-01-27

Family

ID=40404750

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08105411A Withdrawn EP2068224A3 (fr) 2007-11-29 2008-09-23 Dispositif de régulateur rotatif

Country Status (2)

Country Link
EP (1) EP2068224A3 (fr)
DE (1) DE102007057509A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013127052A1 (fr) * 2012-02-27 2013-09-06 海能达通信股份有限公司 Bouton de codage et son procédé de fabrication
EP3506328A1 (fr) * 2017-12-27 2019-07-03 BSH Hausgeräte GmbH Dispositif de cuisson doté d'un bouton de commande

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108255230A (zh) * 2017-12-14 2018-07-06 中航华东光电有限公司 旋钮机构

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050060831A (ko) 2003-12-17 2005-06-22 현대모비스 주식회사 카오디오의 볼륨 노브구조

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB759078A (en) * 1954-04-01 1956-10-10 Cole E K Ltd Improvements in or relating to co-axial control knobs
ATA172096A (de) * 1996-09-30 2003-05-15 Vaillant Gmbh Bedienknopf
SE0403219D0 (sv) * 2004-12-30 2004-12-30 Electrolux Ab Control knob assembly

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050060831A (ko) 2003-12-17 2005-06-22 현대모비스 주식회사 카오디오의 볼륨 노브구조

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013127052A1 (fr) * 2012-02-27 2013-09-06 海能达通信股份有限公司 Bouton de codage et son procédé de fabrication
EP3506328A1 (fr) * 2017-12-27 2019-07-03 BSH Hausgeräte GmbH Dispositif de cuisson doté d'un bouton de commande

Also Published As

Publication number Publication date
DE102007057509A1 (de) 2009-06-04
EP2068224A3 (fr) 2010-01-27

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