EP0174499A2 - Commutateur à touche avec dispositif de sélection pas à pas - Google Patents

Commutateur à touche avec dispositif de sélection pas à pas Download PDF

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Publication number
EP0174499A2
EP0174499A2 EP85109929A EP85109929A EP0174499A2 EP 0174499 A2 EP0174499 A2 EP 0174499A2 EP 85109929 A EP85109929 A EP 85109929A EP 85109929 A EP85109929 A EP 85109929A EP 0174499 A2 EP0174499 A2 EP 0174499A2
Authority
EP
European Patent Office
Prior art keywords
spur gear
tooth
key
keys
key switch
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Withdrawn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
EP85109929A
Other languages
German (de)
English (en)
Other versions
EP0174499A3 (fr
Inventor
Franz Sczepur
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.)
Alcatel Lucent Deutschland AG
Original Assignee
Alcatel SEL AG
Standard Elektrik Lorenz 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 Alcatel SEL AG, Standard Elektrik Lorenz AG filed Critical Alcatel SEL AG
Publication of EP0174499A2 publication Critical patent/EP0174499A2/fr
Publication of EP0174499A3 publication Critical patent/EP0174499A3/fr
Withdrawn legal-status Critical Current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
    • H01H19/003—Thumb wheel switches having a pushbutton actuator

Definitions

  • the present invention relates to a load switch according to the preamble of claim 1.
  • Such a pushbutton switch is known from EP-PS 00 31 038.
  • the locking elements connected to the pushbuttons are connected to one another by a bracket.
  • the position of the bracket is changed such that the detent elements release the gear.
  • the gear is therefore only rotated by the driver.
  • the number plate assigned to the gearwheel cannot perform a snap movement, but only a rotary movement corresponding to the actuation of the key.
  • the object of the present invention is to design such a pushbutton switch in such a way that the gearwheel and thus the associated number or letter disk is transferred in a jerky manner from one latching position to the other. There should be a noticeable pressure moment and the gear should not be able to be brought into intermediate positions.
  • Pushbuttons 3 and 4 which can be actuated by pressing, are slidably held in two upper lateral guide openings 2.
  • a key tappet 5 or 6 is fastened or molded onto the keys 3, 4, which in a suitable manner in the housing 1, optionally additionally by means of guide bolts 7, in the pressure direction, i.e. are slidably supported in the direction of the longitudinal axis L.
  • a resilient crossbar 10 i.e. the key tappets 5, 6 and the crossbar 10 form a structural unit.
  • the crossbar creates the resetting force for the push buttons 5, 6.
  • the crossbar 10 is in the housing 1 by, for example, a cutout 11 of the housing 1 and a shoulder 12 of the cross bar 10 formed cutting bearing fixed and resiliently biased, stops 13 of the push buttons 5, 6 press from the inside against the upper housing end wall 14.
  • An arm 15 or 16 is molded onto the top of each of the key tappets 5, 6. These run approximately parallel to the key tappets 5 and 6 and can be deflected laterally in a resilient manner about a fictitious pivot axis 17 or 18 to the key tappets 5 and 6.
  • Each arm 15, 16 has a driver 21 or 22, which cooperates with a tooth Z9 or Z2 of the spur gear 20 when the assigned key 3 or 4 is pressed and can switch the latter by one tooth.
  • a detent element 23 or 24 is attached to the key plunger 5, 6 in such a way that it can be deflected resiliently on the side and into the first tooth gap below the axis of rotation 19 between the teeth Z7 and Z8 or Z3 and Z4 of the spur gear 20 can snap into place and thus fix the locking position of the same.
  • the arm 15 or 16 and in the exemplary embodiment also the locking element 23 or 24 is deflected resiliently outwards about the fictitious pivot axis 17 or 18 and / or 17 'or 18', as shown in the right half of the drawing in FIG. 1 . In the left half of the drawing, the detent element 23 is shown in the non-detented, ie relaxed state.
  • Each detent element 23, 24 has a stop surface 25 or 26, which with the tooth flank 27 or 27 1 and / or Tooth tip 28 or 28 1 of the tooth Z4 or Z7 further away from the buttons 3, 4 can cooperate.
  • the stop surfaces are inclined in such a way against the longitudinal axis L that in the entire deflection area occurring through the tooth Z4 or Z7 when the spur gear 20 rotates, the stop surfaces 25 or 26 never perpendicular to the radius vector at the contact point between the spur gear 20 and the stop surface 25 or 26 can come.
  • the abutment surface 25, 26 can also run parallel to the longitudinal axis L, as is known per se from the aforementioned FR-OS 21 63 956, but without the risk that the restoring torque disappears.
  • the length of the stop faces 25, 26 is dimensioned such that they themselves or their lower end edge 29 or 29 'in the drawing in the rest position on the tooth flank 27 or 27' or the tooth tip 28 or 28 'of the tooth Z7 or Z4 can rest and the upper end edge 30 or 30 1 either lies on the adjacent tooth flank 31 or 31 'of the tooth Z8 or Z3 or it ends shortly before this.
  • a second stop surface 32 or 32' directed upwards and outwards therefrom can also be provided, which is connected to the tooth flank 31 or 31 'and / or the tooth tip 28 or 28 'of the tooth Z8 or Z3 can interact.
  • the detent element 23 or 24 rests in rest position on two adjacent tooth flanks 27, 31 or 27 ', 31' on the spur gear 20 or rests on one of them and is arranged so close to the other that the spur gear 20 can only be rotated by a very small angle.
  • FIGS. 6a to 6c shows the actuation sequence when the key 3 is pressed in three stages.
  • the stop surfaces 25, 26 have a small distance of e.g. 0.05 to 1 mm to the tooth flank 27 or 27 '.
  • the detent elements 23, 24 are designed such that, as in FIG. 6b clearly visible, the stop surface 25 or 26 or also the lower end edge 29 or 29 'when the assigned button 3 or 4 is pressed initially resiliently abuts the corresponding tooth flank or tooth tip until, for example, the snap-in position of the other detent element 24 with the spur gear 20 is reached or almost reached and then only comes out of engagement with the spur gear 20.
  • the actuation pressure is reduced because the spring action of the shifted locking element 23 on the spur gear 20 exerts a moment in the direction of rotation.
  • One or both stop surfaces 25, 32 or 26, 32 'of a latching element 23, 24 can be provided in the latching position parallel to an assigned tooth flank 27 or 31 or 27' or 31 '.
  • the angle formed by the stop surfaces 25, 32 or 26, 32 ' is greater than the angle ⁇ formed by the tooth flanks 27, 31 or 27', 31 '.
  • the former is expediently between approximately 85 ° and 140 ° and the latter approximately between 80 ° and 120 °.
  • the stop faces can also be inclined so that none rests against a tooth flank in the rest position.

Landscapes

  • Push-Button Switches (AREA)
EP85109929A 1984-08-10 1985-08-07 Commutateur à touche avec dispositif de sélection pas à pas Withdrawn EP0174499A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843429443 DE3429443A1 (de) 1984-08-10 1984-08-10 Tastschalter mit schrittschaltwerk
DE3429443 1984-08-10

Publications (2)

Publication Number Publication Date
EP0174499A2 true EP0174499A2 (fr) 1986-03-19
EP0174499A3 EP0174499A3 (fr) 1987-01-07

Family

ID=6242756

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85109929A Withdrawn EP0174499A3 (fr) 1984-08-10 1985-08-07 Commutateur à touche avec dispositif de sélection pas à pas

Country Status (2)

Country Link
EP (1) EP0174499A3 (fr)
DE (1) DE3429443A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0340447A1 (fr) * 1988-05-06 1989-11-08 Oerlikon-Contraves AG Interrupteur à bouton-poussoir à plusieurs positions

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3435167A (en) * 1967-08-03 1969-03-25 Frederick W Pfleger Multiposition push-button switch
FR2163956A5 (fr) * 1971-12-06 1973-07-27 Crouzet Sa
EP0031038A1 (fr) * 1979-12-19 1981-07-01 Contraves Ag Mécanisme interrupteur pas à pas
GB2077499A (en) * 1980-04-18 1981-12-16 Cosmocord Ltd Multi-position electric switch

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3435167A (en) * 1967-08-03 1969-03-25 Frederick W Pfleger Multiposition push-button switch
FR2163956A5 (fr) * 1971-12-06 1973-07-27 Crouzet Sa
EP0031038A1 (fr) * 1979-12-19 1981-07-01 Contraves Ag Mécanisme interrupteur pas à pas
GB2077499A (en) * 1980-04-18 1981-12-16 Cosmocord Ltd Multi-position electric switch

Also Published As

Publication number Publication date
EP0174499A3 (fr) 1987-01-07
DE3429443A1 (de) 1986-02-20

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Inventor name: SCZEPUR, FRANZ