EP0031038A1 - Mécanisme interrupteur pas à pas - Google Patents

Mécanisme interrupteur pas à pas Download PDF

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Publication number
EP0031038A1
EP0031038A1 EP80107245A EP80107245A EP0031038A1 EP 0031038 A1 EP0031038 A1 EP 0031038A1 EP 80107245 A EP80107245 A EP 80107245A EP 80107245 A EP80107245 A EP 80107245A EP 0031038 A1 EP0031038 A1 EP 0031038A1
Authority
EP
European Patent Office
Prior art keywords
plunger
latching
mechanism according
pinion
switching
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.)
Granted
Application number
EP80107245A
Other languages
German (de)
English (en)
Other versions
EP0031038B1 (fr
EP0031038B2 (fr
Inventor
Hansrudolf Lehmann
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
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25689758&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0031038(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Contraves AG, Oerlikon Contraves AG filed Critical Contraves AG
Publication of EP0031038A1 publication Critical patent/EP0031038A1/fr
Publication of EP0031038B1 publication Critical patent/EP0031038B1/fr
Application granted granted Critical
Publication of EP0031038B2 publication Critical patent/EP0031038B2/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
    • H01H19/003—Thumb wheel switches having a pushbutton actuator
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/15—Intermittent grip type mechanical movement
    • Y10T74/1526—Oscillation or reciprocation to intermittent unidirectional motion
    • Y10T74/1529—Slide actuator
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/15—Intermittent grip type mechanical movement
    • Y10T74/1558—Grip units and features
    • Y10T74/1584—Gripper mountings, slide

Definitions

  • the invention relates to a forward and reverse switchable step switch, for example for a multi-stage switch, which is arranged in a housing and a one-piece drive with two push buttons each assigned to a switching direction, two switching elements.
  • a stepping mechanism is known, the keys of which are formed in one piece with the push buttons.
  • the buttons are connected to the button via a resilient web, which enables the entire button to be swiveled with respect to the longitudinal axis.
  • a transport pin on the number wheel engages half a switching step, which is completed by a transport wedge when the button slides back.
  • the movement of the dial is jerky and against the printing direction.
  • a key coding switch in which the forward and reverse switching step is assigned a key, which is provided with approximately C-shaped actuating and locking cams, which grip from opposite sides over the ring gear.
  • the associated actuating cam sets the ring gear in motion, while the locking cam of the other button is deflected from its rest position by the ring gear.
  • the invention has for its object to provide a step-by-step mechanism of the type mentioned, in which an exact switching step is completed by pressing a push button once, without the need for highly accurate dimensional tolerances of the individual parts or an adjustment.
  • the drive should be in one piece, ensure simple assembly without additional aids and be able to be produced from plastic in the known injection molding process. These requirements should also be achievable when it comes to a miniature stepping mechanism.
  • a bendable latching element which connects the two plungers in a bridge-like manner, so that a latching cam arrangement, which is formed symmetrically on the latching element with respect to the axis of symmetry of the housing, engages on the pinion to hold the selector disk in the rest position, but with each gear step against the restoring force of a known spring releases the pinion and engages after the switching step to hold the dial again by the force of the spring on the pinion.
  • FIG. 1 shows a sectional view of a pushbutton switch 100, on which a housing 60 can be seen, which is formed from a side wall 50, an end face 41, an upper and a lower wall 59, 59 'and a rear wall 56.
  • a housing 60 is formed from a side wall 50, an end face 41, an upper and a lower wall 59, 59 'and a rear wall 56.
  • the housing 60 is a essentially consisting of a drive 30, a selection disk 79 with a toothed pinion 80 fastened thereon and a spring 70 arranged forwards and backwards switchable stepping mechanism.
  • the switching element 23 is arranged laterally on the plunger 14 with a web 22 and, with a further, stepped switching arm 24, runs approximately parallel to the plunger 14.
  • a switching cam 28 is formed, which has a front surface 27 and an inner surface 25.
  • the front surface 27 and the inner surface 25 enclose an acute angle.
  • an angular corner piece 19 or 6 is formed on both ends of the plunger 14.
  • the corner pieces 19 and 6 are preferably separated from one another by a recess 29.
  • the corner piece 19 consists of an end wall 18 with an end face 20 and a side wall 15 arranged at right angles thereto.
  • the push button 21 is arranged on the end face 20.
  • the side wall is wedge-shaped and is delimited by an outer surface 16 which runs parallel to the plunger 14 and an inner surface 17 which is slightly inclined thereto.
  • the corner piece 6 also has an inner side 8 running parallel to the plunger 14, on which a recess 7 for holding the spring 70 (FIG. 1) is visible.
  • the side wall 10 has an outer surface 11 and one Inner surface 12, both of which run parallel to the plunger 14.
  • a second inner surface 13 is slightly inclined to the outer surface 11 and gives the outer wall 10 a wedge-shaped closure.
  • the V-shaped locking element 40 consisting of a locking arch 34 and the locking cam 37, is formed on the end of the plunger 14.
  • the locking arch consists of a substantially linear locking arm 38 and a mirror-symmetrical locking arm 38 ', not shown here, and a middle piece 33, on which the locking cam 37 is formed.
  • the angle between the locking arm 38 and the plunger 14 is about 45 °, the angle between the latch arm 38 and the mirror-symmetrical detent arm 38 'about 90 0th
  • the latching cam has a convexly curved latching surface 35 and a concavely curved inner surface 36, which run essentially parallel to one another. Due to the narrow construction of the locking arch 34, the locking element 40 can be bent with respect to the forces exerted in the direction of the arrows 1 and 2, but in particular the attachment point 39 and the attachment point 39 '(not shown here) are designed to be flexible.
  • Fig. 3 the switch is shown in section along the line III - III in Fig. 1 and you can see the housing 60, which is closed on one side by the side wall 50 and open on the other opposite side.
  • the drive 30 inserted into the housing 60 and the spring 70 can also be seen.
  • the open side is closed by a circuit board 44, which is shown at a distance from the open side for reasons of simplified illustration, and by an end plate 43, which is also shown at a distance from the housing 60 , for which purpose the housing 60 has at least one pin 46 at the corners, which push button-like in a corresponding in the End plate 43 provided bore 42 engages.
  • the corners of the side wall 50 are each provided with a bore 48, into each of which a pin 49 of an end plate 47 engages.
  • FIG. 4 shows isometrically a drive according to a second variant, which differs from the first embodiment according to FIG. 2 only in the embodiment of a latching element 140.
  • the V-shaped engagement member 140 is composed of a locking sheet 134, an angle of about 90 0 enclosing latching arms 138 and 138 recognized by the one two '.
  • a locking cam 137 is formed on an upper side 131 of the locking arch and has two locking planes 135 and 135 'enclosing an obtuse angle.
  • Each latch arm 138 or 138 ' forms an angle of approximately 135 ° with the half of the plunger 114 or 114' which is articulated towards the pushbutton.
  • FIG. 5 shows a section of a pushbutton switch 200 with a drive 130 according to the second variant shown in FIG. 4.
  • the plunger 114 or 114 ' is additionally guided through a pin 61 or 61' which is fixedly connected to the side wall 50. It can be clearly seen how in the rest position the locking surfaces 135 and 135 'press against the pinion 80 by the force of the spring 70.
  • step switch in conjunction with the push button switch is described below.
  • the forward and reverse switching mechanism used in the housing 60 optionally consists of the drive 30 according to FIG. 2 or the drive 130 according to FIG. 4, as well as the schematically and only shown in outline character support 79 with the pinion 80 (Fig. 1).
  • the end face 41 of the housing 60 has a window 45 for reading the character carrier 79 and two openings 51, 51 'for pushing through and guiding the pushbutton (21, 21') of the corresponding drive (30 or 130).
  • the front surface 27' of the switching cam 28 ' engages with the pinion 80 and, with continued operation, causes the selection disk 79 to rotate by an entire switching operation of 36 °.
  • a deflection of the switching element 23 ' is prevented by the pins 54' and 53 'which are firmly connected to the side wall 50.
  • the switching step in the direction of arrow 1 is ended by a stop of the corner piece 6 'on the pin 46'.
  • the actuating element 30' When the push button 21 'is released, the actuating element 30' is moved in the direction of the arrow 2 by the restoring force of the spring 70, the latching cam 37 first engages in a tooth gap 78 and, after a further movement in the same direction, deflects the inside 25 'of the switching cam 23' against the plunger 14 'by the pinion 80 now held by the locking cams 37, which is made possible by the bendable web 22'. Due to the deflection of the switching element 23 ', the spring 70 can move the actuating element 30' further in the direction of the arrow 2 until the switching cam 28 'has jumped over the pinion 80 and returns to the rest position. emotional.
  • the pinion 80 moves approximately in the same direction as the locking cam 137 with each switching step. Since the pinion 80 now exerts no pressure on the locking cam 137, no pressure point is felt when actuated.
  • the housing with the pins, stops, etc. arranged on the inside of the side wall and the drive can preferably be produced from suitable plastic in an economical injection molding process, so that rational mass production and thus also low manufacturing costs are ensured.
  • FIG. 6 shows a sectional view of a pushbutton switch 200, on which a housing 260 can be seen, which is formed from a side wall 250, an end wall 241, an upper and a lower wall 259, 259 'and a rear wall 256.
  • a stepping mechanism consisting essentially of a drive 230, a selection disk 279 with a toothed pinion 280 attached to it and a spring 270.
  • one of the two halves of the drive 230 which are mirror-symmetrical with respect to the section plane IV, is shown isometrically, which essentially consists of the push button 221, a plunger 214, a switching element 223 and a latching element 240.
  • the switching element 223 is arranged laterally on the plunger 214 with a web 222 and extends approximately parallel to the plunger 214 with a further, stepped switching arm 224.
  • a switching cam 228 is formed, which has a front surface 227 and an inner surface 225.
  • the front surface 227 and the inner surface 225 form an acute angle.
  • an angular corner piece 219 or 206 is formed on both ends of the plunger 214.
  • the corner pieces 219 and 206 are preferably separated from one another by a recess 229.
  • the corner piece 219 consists of an end wall 218 with an end surface 220 and a side wall 215 arranged at right angles thereto.
  • the push button 221 is arranged on the end face 220.
  • the side wall is wedge-shaped and is delimited by an outer surface 216 running parallel to the plunger 214 and an inner surface 217 which is slightly inclined thereto.
  • the angled corner piece 206 also has an inner side 208 running parallel to the plunger 214, on which a recess 207 for holding the spring 270 (FIG. 6) is visible.
  • the side wall 210 has an outer surface 211 and an inner surface 212, both of which extend approximately 30 0 to the inclined ram 214th
  • a second outer surface 213 is slightly inclined to the outer surface 211 and gives the outer wall 210 a wedge-shaped closure.
  • the U-shaped locking element 240 which is only half visible here, is formed approximately in the middle of the plunger 214.
  • the half of the latching element 240 which is mirror-symmetrical with respect to the sectional plane IV, consists of the likewise U-shaped latching arch 235, which is reinforced by a base plate 238, and a latching cam 237 formed on the latching arch 235, which has a latching surface 234 which is substantially perpendicular to the sectional plane IV.
  • the locking arm 236 has an elastic attachment point 239 in the vicinity of the tappet 214 (FIG. 6).
  • step switch and the push button switch according to the third variant are described below.
  • the forward and reverse switching mechanism used in the housing 260 consists of the drive 230 according to FIG. 7 and the drawing carrier 279, shown schematically and only in outline, with the toothed pinion 280 rotatably arranged about the axis pin 252 (FIG. 6).
  • the end face 241 of the housing 260 has a window 245 for reading the character carrier 279 and two openings 251, 251 'for inserting and guiding the pushbutton (221, 221') of the drive 230.
  • the plunger 214 guided on the one side on the inner wall 259 and on the other side through the link 261 which is firmly connected to the side wall 250 moves in the direction of the arrow 201, while the drive acts on the cam by the action of the spring 270 255 supports (Fig. 6).
  • the latching element 240 is simultaneously displaced in the direction of the arrow, while the other plunger 214 'undergoes essentially no displacement. This is associated with a deformation of the drive, which occurs essentially at the attachment points 239 and 239 '.
  • the locking cams 237 and 237 By moving the plunger 214, the locking cams 237 and 237 'inevitably move in the ' arrow direction 201, as a result of which they move away from the pinion gear 280 and unlock it.
  • the pushbutton 221 in the direction of arrow 201 By further actuation of the pushbutton 221 in the direction of arrow 201, the front surface 227 of the switching cam 228 engages with the pinion 280 and, with continued actuation, causes the selection disk 279 to rotate by a complete switching operation of 36 °.
  • deflection of the switching element 223 is prevented by the pin 254, which is firmly connected to the side wall 250.
  • the switching step in the direction of arrow 201 is ended by a stop of the corner piece 206 on the pin 246.
  • the housing with the pins, stops, etc. arranged on the inside of the side wall and the drive can preferably be produced from suitable plastic in an economical injection molding process, so that rational mass production and thus also low manufacturing costs are ensured.
  • a flexurally elastic attachment 262 or 262 ' is formed on each plunger 214 or 214' at a distance from the corresponding pushbuttons 221 or 221 '.
  • a wedge-shaped cam 263 or 263 'directed towards the side wall 259 or 259' is also formed on each attachment.
  • One of the two cams slides with each switching step 264 or 264 'via a cam 264 or 264' formed on the housing wall 259 or 259 '. The consequent deflection of the attachment 262 or 262 'is perceived as a pressure point at the switch.

Landscapes

  • Push-Button Switches (AREA)
EP80107245A 1979-12-19 1980-11-20 Mécanisme interrupteur pas à pas Expired EP0031038B2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH1124779 1979-12-19
CH11247/79 1979-12-19
CH219280 1980-03-20
CH2192/80 1980-03-20

Publications (3)

Publication Number Publication Date
EP0031038A1 true EP0031038A1 (fr) 1981-07-01
EP0031038B1 EP0031038B1 (fr) 1984-04-11
EP0031038B2 EP0031038B2 (fr) 1989-11-29

Family

ID=25689758

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80107245A Expired EP0031038B2 (fr) 1979-12-19 1980-11-20 Mécanisme interrupteur pas à pas

Country Status (3)

Country Link
US (1) US4383453A (fr)
EP (1) EP0031038B2 (fr)
DE (1) DE3067476D1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2531261A1 (fr) * 1982-07-28 1984-02-03 Fm Atel Meca Precision Commutateur electrique miniature
EP0174499A2 (fr) * 1984-08-10 1986-03-19 Alcatel SEL Aktiengesellschaft Commutateur à touche avec dispositif de sélection pas à pas

Families Citing this family (3)

* 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
US5881483A (en) * 1997-10-06 1999-03-16 C.J. Associates Ltd. Means for and methods of conveying information to prospective purchasers
CN112306165B (zh) * 2019-08-02 2023-09-08 戴尔产品有限公司 卡/机箱联接系统

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2153430A (en) * 1937-11-20 1939-04-04 Mallory & Co Inc P R Switch index mechanism
US3140365A (en) * 1960-11-08 1964-07-07 Mallory Timers Company Plunger switch having integral plunger and spring
US3375337A (en) * 1966-01-05 1968-03-26 Veeder Industries Inc Pushbutton rotary switch having unitary actuator
DE1549987B1 (de) * 1967-03-23 1971-09-16 Hengstler Kg Zaehlwerk mit einer rastvorrichtung
US3435167A (en) * 1967-08-03 1969-03-25 Frederick W Pfleger Multiposition push-button switch
US3582594A (en) * 1968-11-15 1971-06-01 Mechanical Enterprises Inc Actuator useable for electric switches and the like
US3526149A (en) * 1969-04-14 1970-09-01 Enm Co Verge
US3636782A (en) * 1969-06-17 1972-01-25 Motorola Inc Indexing mechanism
GB1368137A (en) * 1971-10-13 1974-09-25 Engish Numbering Machines Ltd Rotary indexing mechanisms
US3748915A (en) * 1972-02-24 1973-07-31 Cutler Hammer Inc Multiposition bi-directional rotary means for a switch or the like
CH581354A5 (fr) * 1974-01-14 1976-10-29 Hartmann Fritz
DE2653172C3 (de) * 1976-11-23 1982-03-11 Cherry Mikroschalter Gmbh, 8572 Auerbach Tastenkodierschalter
US4257283A (en) * 1978-03-17 1981-03-24 Contraves Ag Stepping mechanism for a multi-position switch
US4270399A (en) * 1979-06-15 1981-06-02 Eaton Corporation Counter drive mechanism

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2531261A1 (fr) * 1982-07-28 1984-02-03 Fm Atel Meca Precision Commutateur electrique miniature
EP0100245A1 (fr) * 1982-07-28 1984-02-08 Atelier De Mecanique De Precision F.M (Sarl) Commutateur électrique miniature
US4503303A (en) * 1982-07-28 1985-03-05 Atelier De Mecanique De Precision F.M. Miniature electrical switch
EP0174499A2 (fr) * 1984-08-10 1986-03-19 Alcatel SEL Aktiengesellschaft Commutateur à touche avec dispositif de sélection pas à pas
EP0174499A3 (fr) * 1984-08-10 1987-01-07 Alcatel SEL Aktiengesellschaft Commutateur à touche avec dispositif de sélection pas à pas

Also Published As

Publication number Publication date
US4383453A (en) 1983-05-17
EP0031038B1 (fr) 1984-04-11
DE3067476D1 (en) 1984-05-17
EP0031038B2 (fr) 1989-11-29

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