EP0244612A2 - Disposition de commande d'un potentiomètre rotatif - Google Patents

Disposition de commande d'un potentiomètre rotatif Download PDF

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Publication number
EP0244612A2
EP0244612A2 EP87104199A EP87104199A EP0244612A2 EP 0244612 A2 EP0244612 A2 EP 0244612A2 EP 87104199 A EP87104199 A EP 87104199A EP 87104199 A EP87104199 A EP 87104199A EP 0244612 A2 EP0244612 A2 EP 0244612A2
Authority
EP
European Patent Office
Prior art keywords
rotation
tooth
axis
drive
drive device
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Withdrawn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
EP87104199A
Other languages
German (de)
English (en)
Other versions
EP0244612A3 (fr
Inventor
Oswald Reuss
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.)
Preh GmbH
Original Assignee
Preh 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 Preh GmbH filed Critical Preh GmbH
Publication of EP0244612A2 publication Critical patent/EP0244612A2/fr
Publication of EP0244612A3 publication Critical patent/EP0244612A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C10/00—Adjustable resistors
    • H01C10/14—Adjustable resistors adjustable by auxiliary driving means

Definitions

  • the invention relates to a drive device of a rotary potentiometer, in which a drive element acts on a rotary body carrying a potentiometer sliding contact.
  • Such a rotary potentiometer is used, for example, in an electronic carburetor of a motor vehicle (cf. KRAFTHAND, number 15, August 6, 1983, pages 877 to 881). Control of the mixture enrichment at start, warm-up and acceleration is carried out electronically.
  • the air / fuel ratio is influenced by means of a throttle valve.
  • a throttle valve potentiometer which is connected to the throttle valve shaft with the aid of a coupling, is used to detect the position and the sequence of movements of the throttle valve.
  • Such a rotary potentiometer is described in the earlier patent application P 34 44 229.4.
  • the rotating body has a recess, on the inner edge of which two teeth are provided offset by 180, the tooth tips of which are directed towards the axis of rotation.
  • the tooth flanks of the teeth on which a drive means is to act are flat. This is unfavorable, since then there is a different axis of torque between the rotating body and the drive means with an unavoidable axis offset. As a result, the force required to drive the rotating body fluctuates.
  • the object of the invention is to propose a drive device of the type mentioned, the operation of which is not impaired when the axis of rotation of the rotary body and the axis of rotation of the drive piece are offset.
  • the above object is achieved in that teeth are arranged on the rotating body, the tooth tips of which are directed towards the axis of rotation, that the drive piece rests on one tooth flank of one tooth and on one tooth flank of a tooth opposite this, based on the axis of rotation, and in that the tooth flanks are rounded involute.
  • a rotating body 1 has an axle piece 2 with which the rotating body 1 is rotatably mounted about the axis 3 on a base plate (not shown).
  • a resilient potentiometer sliding contact is to be fixed, which slides over a resistance layer provided on the base plate when the rotating body 1 is rotated.
  • the rotating body 1 has a sleeve-shaped extension 5, the interior 6 of which is essentially cylindrical. On the extension 5, two axially extending teeth 7 and 8 are formed in the interior 6. The tooth tips 9 and 10 are directed towards the axis of rotation 3. The teeth 7 and 8 o are offset in the interior 6 by L80. So you are facing each other in relation to the axis of rotation 3. Their tooth flanks 11, 12, 13 and 14 are rounded in an involute shape (see FIG. 2). In the axially extending central region, the tooth flanks 11, 12 and 13, 14 lie on a circle K.
  • a drive piece 15 is provided, which is formed by a cuboid bolt which has parallel side surfaces 16 and 17.
  • the drive piece 15 is arranged on a shaft 18 with an axis of rotation 19.
  • the axis of rotation 19 is rarely aligned with the axis of rotation 3.
  • the axis of rotation 19 can be offset from the axis of rotation 3 and / or be at an angle to it.
  • the drive piece 15 rests with the one end region 20 of its side surface 16 on the circular central region of the tooth flank 12.
  • the opposite end region 21 of the side surface 17 lies against the circular central region of the tooth flank 14.
  • the length of the drive piece 15 is smaller than the diameter of the interior 6.
  • distances which are dimensioned such that with each offset to be taken into account between the axis of rotation 19 and of the axis of rotation 3 do not touch the end faces 22, 23 of the inner circumference 24.
  • the drive piece 15 If the drive piece 15 is rotated about the axis of rotation 19 in the direction of the arrow 25, then it presses on the tooth flanks 12 and 14, as a result of which the rotating body 1 rotates about the axis of rotation 3. If there is an offset between the axes of rotation 19 and 3, at least one of the end regions 20, 21 remains in constant contact with the associated tooth flank 12 or 14 during the entire rotary movement. The contact point on the tooth flank 12 or 14 practically does not change. This also applies to different offsets. The torque that the drive piece 15 must apply to drive the rotating body 1 thus remains essentially constant during the entire rotation, so that a smooth, smooth drive is achieved despite the axial offset.
  • the drive piece 15 When driven in the direction of arrow 25, the drive piece 15 acts against the almost constant spring force of a return spring acting on the rotating body 1 (not shown). In both directions of movement of the drive piece 15, when the latter is adjusted, the end regions 20, 21 remain in contact with the associated tooth flank 12 by the spring force. 14 of the tooth 7, 8. Over the entire rotary range of the drive piece 15, o 0 which is less than 120 and is generally dimensioned close to 90, there is thus a play-free, synchronous forward-backward movement of the rotary body 1 and drive piece 15.
  • the drive piece 15 is first rotated by an idle stroke 26 until its side surface 16 strikes the central region of the tooth flank 11 and its side surface 17 meets the central region of the tooth flank 13 . Then the rotating body 1 is then taken back without play.
  • the angle of the idle stroke 26 can be reduced by increasing the width of the teeth 7 and 8 on the circumference of the interior 6. The angle of the idle stroke 26 can also be reduced by providing a further pair of teeth.

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Adjustable Resistors (AREA)
EP87104199A 1986-04-15 1987-03-21 Disposition de commande d'un potentiomètre rotatif Withdrawn EP0244612A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3612574 1986-04-15
DE3612574A DE3612574C1 (de) 1986-04-15 1986-04-15 Antriebseinrichtung eines Drehpotentiometers

Publications (2)

Publication Number Publication Date
EP0244612A2 true EP0244612A2 (fr) 1987-11-11
EP0244612A3 EP0244612A3 (fr) 1989-03-22

Family

ID=6298677

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87104199A Withdrawn EP0244612A3 (fr) 1986-04-15 1987-03-21 Disposition de commande d'un potentiomètre rotatif

Country Status (4)

Country Link
US (1) US4771262A (fr)
EP (1) EP0244612A3 (fr)
JP (1) JPS62244103A (fr)
DE (1) DE3612574C1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0402618A3 (fr) * 1989-06-12 1991-04-24 AB Elektronik GmbH Potentiomètre à rotation avec corps de rotation et mécanisme de commande

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19720543C1 (de) * 1997-05-16 1998-05-20 Preh Elektro Feinmechanik Elektrischer Drehwiderstand
US6078249A (en) * 1998-10-08 2000-06-20 Wayne-Dalton Corp. Screw-type potentiometer drive with a travel reset
US9566414B2 (en) 2013-03-13 2017-02-14 Hansen Medical, Inc. Integrated catheter and guide wire controller
US10849702B2 (en) 2013-03-15 2020-12-01 Auris Health, Inc. User input devices for controlling manipulation of guidewires and catheters
US20140276392A1 (en) * 2013-03-15 2014-09-18 Hansen Medical, Inc. Input device for robotic catheter and guide wire system
US9283046B2 (en) 2013-03-15 2016-03-15 Hansen Medical, Inc. User interface for active drive apparatus with finite range of motion
US11020016B2 (en) 2013-05-30 2021-06-01 Auris Health, Inc. System and method for displaying anatomy and devices on a movable display
EP2923669B1 (fr) 2014-03-24 2017-06-28 Hansen Medical, Inc. Systèmes et dispositifs pour le guidage instinctif d'un cathéter
US11037464B2 (en) 2016-07-21 2021-06-15 Auris Health, Inc. System with emulator movement tracking for controlling medical devices
CN110831534B (zh) 2017-12-08 2023-04-28 奥瑞斯健康公司 用于医疗仪器导航和瞄准的系统和方法
CN112218595B (zh) 2018-05-18 2026-04-03 奥瑞斯健康公司 用于机器人使能的远程操作的系统的控制器
EP3989793B1 (fr) 2019-06-28 2025-11-19 Auris Health, Inc. Interface de console chirurgicale
JP2023125401A (ja) * 2022-02-28 2023-09-07 ニデックインスツルメンツ株式会社 開閉部材駆動装置および便蓋開閉ユニット

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3446085A (en) * 1967-03-24 1969-05-27 Precision Electronic Component Variable resistor
US3469225A (en) * 1968-03-12 1969-09-23 Trw Inc Miniature,multiturn trimmer potentiometer
GB1412110A (en) * 1971-12-31 1975-10-29 United Gas Industries Ltd Couplings
DE8115188U1 (de) * 1980-05-28 1981-10-15 Allen-Bradley Electronics Ltd., Jarrow, Tyne and Wear "regelbarer widerstand"
US4518369A (en) * 1983-04-20 1985-05-21 Kabushiki Kaisha Komatsu Seisakusho Coupling arrangement for rotating shafts
US4539963A (en) * 1984-11-13 1985-09-10 General Motors Corporation Shaft mounted valve position sensor
DE3444229A1 (de) * 1984-11-30 1986-06-05 Preh, Elektrofeinmechanische Werke Jakob Preh Nachf. Gmbh & Co, 8740 Bad Neustadt Einstellbarer widerstand
DE8610175U1 (de) * 1986-04-15 1986-06-19 Preh-Werke GmbH & Co. KG, 97616 Bad Neustadt Antriebseinrichtung eines Drehpotentiometers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0402618A3 (fr) * 1989-06-12 1991-04-24 AB Elektronik GmbH Potentiomètre à rotation avec corps de rotation et mécanisme de commande

Also Published As

Publication number Publication date
US4771262A (en) 1988-09-13
EP0244612A3 (fr) 1989-03-22
JPS62244103A (ja) 1987-10-24
DE3612574C1 (de) 1987-06-19

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Inventor name: REUSS, OSWALD