EP0051736B1 - Mécanisme de commande pour un interrupteur rotatif de codage - Google Patents

Mécanisme de commande pour un interrupteur rotatif de codage Download PDF

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Publication number
EP0051736B1
EP0051736B1 EP81107761A EP81107761A EP0051736B1 EP 0051736 B1 EP0051736 B1 EP 0051736B1 EP 81107761 A EP81107761 A EP 81107761A EP 81107761 A EP81107761 A EP 81107761A EP 0051736 B1 EP0051736 B1 EP 0051736B1
Authority
EP
European Patent Office
Prior art keywords
wheel
detent
locking
symbol
latching
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.)
Expired
Application number
EP81107761A
Other languages
German (de)
English (en)
Other versions
EP0051736A1 (fr
Inventor
Hans Wermelinger
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.)
Rheinmetall Air Defence AG
Rheinmetall Industrie AG
Original Assignee
Contraves AG
Oerlikon Contraves AG
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 Contraves AG, Oerlikon Contraves AG filed Critical Contraves AG
Priority to AT81107761T priority Critical patent/ATE9520T1/de
Publication of EP0051736A1 publication Critical patent/EP0051736A1/fr
Application granted granted Critical
Publication of EP0051736B1 publication Critical patent/EP0051736B1/fr
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/001—Thumb wheel switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/02—Details
    • H01H19/10—Movable parts; Contacts mounted thereon
    • H01H19/11—Movable parts; Contacts mounted thereon with indexing means

Definitions

  • the invention relates to a switching mechanism for a rotary coding switch, which is arranged in a housing and comprises a symbol or number wheel rotatably mounted about a first axle journal, a switching element and a locking device essentially formed from a ratchet wheel and at least one spring-loaded latching lever resting on the ratchet wheel, wherein the indexing wheel has a plurality of indexing recesses formed by indexing cams with an arcuate flank profile that are uniformly distributed on the circumference.
  • a switching mechanism for a rotary coding switch which is arranged in a housing and comprises a rotatably mounted number wheel, a coupling element and a switching element rotatably mounted against the restoring force of a spring, which with the coupling element by end teeth trained coupling parts is operatively connected.
  • the thumbwheel is provided with an internal bevel gear and is operatively connected to a correspondingly assigned bevel gear which is in engagement with the internal bevel gear by the restoring force of a spring.
  • the rotation of the thumb wheel is counteracted by a resiliently attached raster body on the housing, which engages with a roller in a ribbed, annular surface of the thumb wheel.
  • the rear derailleur of this rotary switch is designed so that the number wheel can only be turned between the individual display positions in the opposite direction.
  • a switching mechanism for a rotary coding switch with a one-piece actuator which comprises a numerical, switching and latching part.
  • the actuating member which is rotatably mounted on an axis, has a cylindrical, numbered first section, a second section provided with locking cams and recesses, and a third section provided with a plurality of shift fingers.
  • the positioning or detent required for the switching process is achieved in this rear derailleur by a spring resiliently against the third section designed as a ratchet wheel and deflectable against the restoring force of a spring.
  • a latching device formed with a ratchet wheel and two latching levers arranged symmetrically to one another is known from DE-C-1186124 and US-A-3 133 164, respectively.
  • the detent levers are either rounded at the one end which is in engagement with the detent wheel and can be deflected against the restoring force of a spring, or have a rotatably mounted roller.
  • the invention has for its object to provide for a rotary switch according to the preamble of claim 1, a forward and reverse switchable switchgear and a locking device and to arrange each other such that the switching and locking elements ensure a switching process exactly transferable to the symbol or number wheel.
  • the coding rotary switch 1 shown in FIGS. 1 to 4 consists essentially of a housing 10, a symbol or digit carrier 35, a circuit board 65 and a switching mechanism 70 arranged in the housing 10, which has a ratchet wheel 25, a gear 30 and two mirror images , includes locking levers 40 and 50 which are arranged symmetrically with respect to the axis of symmetry IV-IV and can be actuated by a switching element 20 which is rotatably mounted laterally on the one housing wall.
  • FIG. 1 shows a sectional view of the rotary coding switch 1 and one can see the housing 10 formed from an end wall 11, a rear wall 12, an upper and lower wall 13 and 14 and a side wall 15 and preferably made of plastic.
  • the housing On the side opposite the side wall 15 the housing has an opening, not specified, which is closed by means of the circuit board 65 after the switching mechanism has been installed.
  • the two walls 13 and 14 and the Front 11 of the housing 10 are adapted in the illustrated embodiment in the area of the dial 35 of the outer contour of the dial.
  • a window 16 is also provided on the end face 11, through which a number 35 ′ or a symbol attached to the end face 36 of the number wheel can be read.
  • the locking gear 25, which is provided with evenly distributed circumferential recesses 26 and with locking cams 26 ', which have an arc-shaped flank profile 26 ", is preferably formed in one piece with the gear 30 and, as shown in more detail in FIG. 4, on an inside of the housing Shaped shoulder 18 is formed on side wall 15.
  • gear wheel 30 is shown partially cut away in Fig. 1.
  • Numerical gear 35 which is rotatably mounted on circuit board 65 by a pin 38, is connected by internal teeth 37 to external teeth 31 of gear wheel 30 1.
  • the two detent levers 40 and 50 which are symmetrically arranged symmetrically to one another and are angled, are movably supported at one end in a bearing element 17 formed on the inside of the housing side wall 15.
  • each detent lever is closed Storage one by one n journal 46 or 56 rotatable roller 45 or 55 is fork-shaped.
  • the rollers 45 and 55 mounted on the detent levers 40 and 50 are pressed or pulled in a contacting manner by a tension spring 60 fastened to the detent levers in a manner not shown in the respective detent recess 26 of the detent wheel 25.
  • the coding rotary switch 1 is shown in view and the switching element 20, which is mounted on the side wall 15 and is provided, for example, with five switching fingers 21 and rotatable about an axle pin 27 in the direction of the arrow 2, can be seen, which corresponds to the switching fingers 21 with the detent cams 26 ' arranged and schematically shown ratchet wheel 25, the likewise schematically illustrated gear 30 and a portion of the circuit board 65.
  • FIG. 3 a part of the operating side of the rotary coding switch is shown in the front view according to FIG. 2, and the front wall 11 of the housing 10, the window 16, a part of the number wheel 35 with a number 35 'and the switching element 20 arranged on the side of the housing can be seen .
  • Fig. 4 shows the rotary encoder switch in section along the line IV-IV in Fig. 1 and one recognizes the essentially through the front side 11, the rear wall 12 and through the side wall 15 box-shaped housing 10, which on the opposite side of the wall 15 is essentially closed by the circuit board 65.
  • the switching element 20 On the outside of the wall 15, the switching element 20 is arranged in a recess 9, which is non-rotatably connected to the journal 27 by a locking washer 28 in a manner not shown.
  • the ratchet wheel 25 resting on the shoulder 18 and the toothed wheel 30 are also connected in a manner not shown to the axle journal 27 rotatably mounted in the shoulder 18.
  • 4 also shows the digit wheel 35 which is rotatably mounted with the journal 38 on the circuit board 65 and which engages with the internal toothing 37 with the external toothing 31 of the gear 30.
  • a groove 19 is provided in a known manner on the outside of the wall 15, which, as shown in more detail in FIG. 2, runs essentially parallel to the recess 9, which is provided for the switching element 20 and is largely circular.

Landscapes

  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Switches With Compound Operations (AREA)

Claims (3)

1. Mécanisme de commande (70) pour un interrupteur rotatif de codage (1) qui est logé dans un boîtier (10) et comporte une roue à symboles ou à chiffres (35) montée à rotation sur un premier tourillon d'axe (38), un élément de commutation (20) ainsi qu'un dispositif d'encliquetage formé essentiellement d'une roue d'encliquetage (25) et d'au moins un levier d'encliquetage (45, 55) s'appliquant de façon élastique à ressort contre la roue d'encliquetage, la roue d'encliquetage (25) comportant plusieurs bossages d'encliquetage (26') répartis régulièrement à sa périphérie et ayant des cavités d'encliquetage (26) formées par un profil de flanc (26") de forme courbe, caractérisé par les caractéristiques suivantes:
a) suivant l'axe de symétrie (IV-IV) du boîtier, à une certaine distance par rapport à la roue à symboles ou à chiffres (35) montée à rotation sur le premier tourillon d'axe (38), se trouvent l'élément de commutation (20) monté à rotation autour d'un second tourillon d'axe (27), la roue d'encliquetage (25) ainsi qu'un pignon denté (30),
b) les pièces (20, 25, 30) montées à rotation autour du second tourillon d'axe (27) coopèrent entre elles,
c) le pignon denté (30) engrène avec une denture (37) prévue à la périphérie intérieure de la roue à symboles ou à chiffres (25), et
d) le dispositif d'encliquetage comporte deux leviers d'encliquetage (40, 50) dont une extrémité est logée dans le boîtier (10) et dont l'autre extrémité s'appuie respectivement par un galet (45, 55) monté à rotation contre la roue d'encliquetage (25), et peuvent dévier à chaque pas de commutation contre la force de rappel d'un ressort (60).
2. Mécanisme de commande selon la revendication 1, caractérisé en ce que la roue d'encliquetage (25) et le pignon denté (30) sont réalisés sous la forme d'une seule pièce constructive, ayant d'un côté une denture extérieure (31) et de l'autre côté une denture avec un épaulement (18) en forme de tronc de cône, prévu sur la face intérieure par rapport au boîtier, et rotatif autour du second tourillon (27).
3. Mécanisme de commande selon la revendication 1, caractérisé en ce que l'élément de commutation (20) comporte un certain nombre de doigts de commutation (21) répartis régulièrement à la périphérie et le pignon d'encliquetage (25) comporte un même nombre de bossages d'encliquetage (26') correspondants.
EP81107761A 1980-11-10 1981-09-30 Mécanisme de commande pour un interrupteur rotatif de codage Expired EP0051736B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81107761T ATE9520T1 (de) 1980-11-10 1981-09-30 Schaltwerk fuer einen codierdrehschalter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH8314/80 1980-11-10
CH831480 1980-11-10

Publications (2)

Publication Number Publication Date
EP0051736A1 EP0051736A1 (fr) 1982-05-19
EP0051736B1 true EP0051736B1 (fr) 1984-09-19

Family

ID=4338421

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81107761A Expired EP0051736B1 (fr) 1980-11-10 1981-09-30 Mécanisme de commande pour un interrupteur rotatif de codage

Country Status (4)

Country Link
US (1) US4405842A (fr)
EP (1) EP0051736B1 (fr)
AT (1) ATE9520T1 (fr)
DE (1) DE3166188D1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5231892A (en) * 1992-07-20 1993-08-03 Deere & Company Hitch control interface assembly
JP2005032450A (ja) * 2003-07-07 2005-02-03 Matsushita Electric Ind Co Ltd スイッチ装置
KR100821956B1 (ko) 2003-07-18 2008-04-15 국방과학연구소 위치구분장치를 구비한 항공기용 플랩 조종 핸들 조립체
CN113078016B (zh) * 2021-04-01 2022-05-20 长沙万龙科技有限公司 通过两次间断式旋转实现通电或断电的安全开关

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1014627B (de) * 1955-11-05 1957-08-29 Eberle & Co Appbau Ges Rastschloss fuer Drehschalter
GB961165A (en) * 1959-09-04 1964-06-17 Infranor Sa Improvements in or relating to rotary selector switches
US3133164A (en) * 1960-08-12 1964-05-12 Cutler Hammer Inc Reversing drum switch
US3195358A (en) * 1962-12-14 1965-07-20 North Atlantic Industries Sealed housing for electrical apparatus
US3229052A (en) * 1963-05-24 1966-01-11 Westinghouse Electric Corp Rotary switch construction with rotor contact position limiting means
US3499127A (en) * 1968-12-26 1970-03-03 Cherry Electrical Prod Thumbwheel type switch
US3958087A (en) * 1969-09-04 1976-05-18 Becton, Dickinson Electronics Company Switch structure
US3654413A (en) * 1970-02-12 1972-04-04 Janco Corp Bi-directional selector switch with slidable pawl transverse to plunger axis and ratchet wheel plane
GB1399577A (en) * 1972-06-13 1975-07-02 Amp Inc Resettable electric switch
US3818155A (en) * 1972-06-13 1974-06-18 Amp Inc Zero setting mechanism for plural ganged thumbwheel counter switches
US4257283A (en) * 1978-03-17 1981-03-24 Contraves Ag Stepping mechanism for a multi-position switch

Also Published As

Publication number Publication date
US4405842A (en) 1983-09-20
EP0051736A1 (fr) 1982-05-19
DE3166188D1 (en) 1984-10-25
ATE9520T1 (de) 1984-10-15

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