EP0157186A2 - Commutateur à curseur verrouillable - Google Patents

Commutateur à curseur verrouillable Download PDF

Info

Publication number
EP0157186A2
EP0157186A2 EP85102369A EP85102369A EP0157186A2 EP 0157186 A2 EP0157186 A2 EP 0157186A2 EP 85102369 A EP85102369 A EP 85102369A EP 85102369 A EP85102369 A EP 85102369A EP 0157186 A2 EP0157186 A2 EP 0157186A2
Authority
EP
European Patent Office
Prior art keywords
contact
key body
spring
slide switch
housing
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
EP85102369A
Other languages
German (de)
English (en)
Other versions
EP0157186A3 (en
EP0157186B1 (fr
Inventor
Karl-Heinz Bauer
Gerhard Spiller
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
Priority claimed from DE19843412378 external-priority patent/DE3412378A1/de
Priority claimed from DE19843412377 external-priority patent/DE3412377A1/de
Priority claimed from DE19843421670 external-priority patent/DE3421670A1/de
Application filed by Preh GmbH filed Critical Preh GmbH
Publication of EP0157186A2 publication Critical patent/EP0157186A2/fr
Publication of EP0157186A3 publication Critical patent/EP0157186A3/de
Application granted granted Critical
Publication of EP0157186B1 publication Critical patent/EP0157186B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/02—Bases, casings, or covers
    • H01H9/06—Casing of switch constituted by a handle serving a purpose other than the actuation of the switch, e.g. by the handle of a vacuum cleaner
    • H01H9/061—Casing of switch constituted by a handle serving a purpose other than the actuation of the switch, e.g. by the handle of a vacuum cleaner enclosing a continuously variable impedance
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/50—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member
    • H01H13/56—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member the contact returning to its original state upon the next application of operating force
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/40—Driving mechanisms, i.e. for transmitting driving force to the contacts using friction, toothed, or screw-and-nut gearing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/50—Driving mechanisms, i.e. for transmitting driving force to the contacts with indexing or locating means, e.g. indexing by ball and spring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H5/00—Snap-action arrangements, i.e. in which during a single opening operation or a single closing operation energy is first stored and then released to produce or assist the contact movement
    • H01H5/04—Energy stored by deformation of elastic members
    • H01H5/18—Energy stored by deformation of elastic members by flexing of blade springs

Definitions

  • the invention relates to a lockable slide switch with the features of the preamble of claim 1.
  • the power connection should first be switched on by means of a slide.
  • Another function is to be controlled by a subsequent displacement (overstroke) of the slide.
  • overstroke the number of revolutions during overstroke controlled.
  • the switching stroke should be short.
  • the overstroke should be long so that the speed can be adjusted sensitively.
  • the power connection must remain switched on during the speed adjustment.
  • the object of the invention is to propose a switch of the type mentioned, in which the locking of the button is possible both from one side and from the opposite side, the operating movement should be the same on both sides.
  • a second push button is arranged on the axis of the pinion or on the axis of a second pinion guided in the row of teeth, which has on its periphery a toothing which is a toothing of the other Facing side of the switch housing, and that these two teeth interlock under the force of the spring when meshing. It is thereby achieved that the key can be determined via its row of teeth either by means of the first push button or by means of the second push button. Both push buttons have the same actuation behavior.
  • buttons in question will grip Interlocking gears. As a result, the pinion can no longer be rotated.
  • the button is released, the row of teeth presses on the pinion (s) under the action of the spring, causing the teeth in question to get caught.
  • the spring not only takes over the resetting of the button, but also serves to lock the button.
  • a key 2 is slidably mounted in the longitudinal direction L.
  • the button head 3 is provided with an end face 4 and side faces 5 and 6.
  • the key 2 has a key body 15 which is guided in the switch housing 1.
  • An opening 16 is provided on the key body 15, which is provided on one side with a row of teeth 17 which extends in the longitudinal direction L. In the drawing, the row of teeth 17 lies above the cutting plane.
  • a cavity 18 is formed, in which a compression spring 19 is mounted.
  • a pinion 21 engages in the tooth row 17.
  • On the axis of the pinion 21 is outside the switch area 1 attached to a square 34 a push button 35. This is supported against the housing 1 by means of a compression spring 36 (cf. FIGS. 1 and 2).
  • a compression spring 36 (cf. FIGS. 1 and 2).
  • saw teeth 37 are formed, the teeth of which are slightly undercut.
  • a corresponding saw toothing 38 is formed on the switch housing 1.
  • a second pinion 39 engages in the tooth row 17 (cf. FIGS. 1 and 2).
  • a second push button 41 is fastened to a square 40 on the axis of the pinion 39 outside the switch housing 1. This is supported against the housing 1 by means of a further compression spring 42 (cf. FIGS. 1 and 3).
  • a saw toothing 43 is formed on the outer circumference of the push button 41, the teeth of which are slightly undercut.
  • a corresponding saw toothing 44 is formed on the side of the switch housing 1 opposite the toothing 38.
  • a grinder carrier 22 is arranged in a rotationally fixed manner, which carries grinder fingers 23 and 24. These are on a circuit board 25.
  • An inner guide ring is printed on the circuit board 25.
  • the grinder finger 23 stands on this.
  • the pinion 39 is displaceably guided on an axis piece 45 of the axis of the pinion 21.
  • this distance A is greater than the depth T of the toothings 37, 38 and 43, 44.
  • the distance A is smaller than the stroke H of the push buttons 35 and 41 It is thereby achieved that when one of the push buttons is locked with its toothing and the other push button is pressed in, the push button previously pressed jumps out of the locking.
  • the push buttons 35 and 41 are rotatably connected to the associated pinions 21 and 39, respectively. They therefore rotate when the row of teeth 17 is shifted. Markings are attached to the outer circumference of the push buttons 35 and 41, which symbolize the respective setting of the rotary potentiometer formed by the parts 22 to 25.
  • only one compression spring 46 is provided instead of the two compression springs 36 and 42. This lies between the two pinions 21 and 39 and pushes them away from each other. It takes over the function of the compression springs 36 and 42.
  • the push buttons 35, 41 are axially fixed on the axes of the pinions 21 and 39.
  • an annular casing 47 is formed on the push buttons 35 and 41 in FIG. 2, which serves as dust protection for the saw teeth and the pinion bearing.
  • only one pinion 48 is provided instead of the two pinions 21 and 39.
  • the two push buttons 35 and 41 are non-rotatably but slidably mounted.
  • the pinion 48 is not displaceable in the tooth row 17 in the direction of its axis.
  • the grinder carrier 22 is coupled to the pinion 48.
  • the position of the wall 51 of the handle is also shown in FIG.
  • the user wants to lock the button head 3 and thus determine the speed during longer machining operations, then when the desired speed is reached, he presses either the push button 35 or the push button 41 against the force of the weak compression spring 36 or 42 compared to the compression spring 19 (cf. 1 and 3) or compression spring 46 (see FIG. 2) until the toothings 37 and 38 or 43 and 44 interlock. The user then releases the button head 3. As a result, the compression spring 19 presses on the pinions 21 and 39 via the row of teeth 17 (see FIGS. 1 and 2) or the pinion 48 (see FIG. 3). Thereafter, the compression spring 36 or 42 or 46 can no longer disengage the undercut teeth concerned. The rotational positions of the pinions 21 and 39 (see FIGS. 1 and 2) and of the pinion 48 (see FIG. 3) are thus fixed.
  • the toothing 37 of the push button 45 or the toothing 43 of the push button 41 is slightly rotated so that it is rotated via the tooth row 17 and the pinion 21 and 39 or 48 under the force of the compression spring 36 or 42 or 46 is disengaged from the toothing 38 or 44.
  • the pinion 21 or 39 in question also shifts in the tooth row 17 in the exemplary embodiments of FIGS. 1 and 2. However, it remains in engagement with the tooth row 17 (cf. FIGS. 1 and 2). .
  • the grinder carrier 22 does not follow such a shift.
  • the switch When the switch is actuated, it is particularly pleasant for the user that he can lock in the same way either from one side or from the other side. It is also favorable that the locking, be it via one push button 35 or the other push button 41, can be released by pressing the button head 3. The user has to release the arre tation so do not check which of the two push buttons 35 or 41 he has previously made the lock.
  • the switch is essentially made up of three parts, namely the driver the leaf spring and the contact bridge. No separate bearings are required for the contact bridge and one end of the leaf spring.
  • the contact bridge supports the leaf spring.
  • the leaf spring forms a positive guide for the contact bridge. The driver eliminates the need to support the other end of the leaf spring.
  • a roller-shaped driver 105 is mounted in a formation 104 of the housing 1. This has an extension 106, to which a recess 107 of the key body 15 is assigned.
  • a stop 108 formed on the key body 15 borders on the recess 107 in the direction of the arrow L. With respect to the stop 108, the recess 107 merges into an overstroke surface 109 formed on the key body 15. The stop 108 projects beyond the overstroke surface 109.
  • One end 111 of a leaf spring 112 is inserted and fixed in a groove 110 of the driver 105.
  • the end 113 of the leaf spring 112 opposite the end 111 is overlapped by a bend 114 of a contact bridge 115.
  • the bend 114 is pivotable in a cavity 116, which is formed between an electrical connector 117 and a web 118 of the housing 1.
  • a contact knob 119 is attached to the end of the contact bridge 115 opposite the bend 114.
  • the contact knob 119 is opposite on the Contact bridge 115 formed a tab 120 which engages over the leaf spring 112.
  • the contact bridge 115 is thereby held on the leaf spring 112.
  • the tab 120 is arranged in an area in which the leaf spring 112 experiences a large deflection.
  • the leaf spring 112 runs in a preformed spring arch 121 between the tab 120 and the bend 114.
  • the contact knob 119 is assigned a mating contact 122 fastened to the housing 1.
  • the pivoting of the driver 105 forms in the leaf spring 112 a shaft running from the driver, which improves both the closing behavior and the opening behavior of the contact 119, 122.
  • the switching operation mentioned is ended after the switching stroke H1.
  • the approach 106 now stands on the overstroke surface 109. It slides on this when the key body 15 is moved further, as a result of which the contact knob 119 is held on the mating contact 122.
  • the rotary potentiometer (not shown in detail) is adjusted accordingly via the row of teeth 17.
  • the key body 15 If the key body 15 is released, it is pushed back under the force of the compression spring 19.
  • the stop 108 then strikes against the projection 106, so that it is pressed into the recess 107.
  • the driver 105 pivots in the opposite direction of the arrow D, so that the leaf spring 112 snaps back into its starting position. It pivots the contact bridge 115 over the tab 120, as a result of which the contact knob 119 stands out from the mating contact 122. The contact is open again.
  • the stop 108 on the shoulder 106 By striking the stop 108 on the shoulder 106, the end position of the key body 15 is also locked.
  • FIGS. 8 to 12 show a further on-off contact, in which the contact during the overstroke, in particular in the case of an overstroke that is long compared to the switching stroke, does not deteriorate and which is made up of a few parts.
  • the contact rocker folds over during the switching stroke of the switching finger, so that one arm strikes the mating contact.
  • the shift finger slides on the other arm and the contact rocker is pressed against the mating contact by the clip spring, the clip spring being supported by the surface of the key body sliding on one leg.
  • the overtravel is preferably long compared to the switching stroke.
  • a surface 206 running parallel to the displacement direction L is formed on the key body 15.
  • a shift finger 207 is formed on the end of the key body opposite surface 206.
  • a bow spring 208 which has a first leg 209 and a second, projects between the shift finger 207 and the surface 206 Has leg 210.
  • the two legs 209 and 210 are connected via a spring arch 211 which lies in the region of the key body 15.
  • the end 209 ′ of the leg 209 facing the rear wall 212 of the housing 1 is exposed.
  • an angled portion 213 is formed, which is seated in a guide 214 of the housing 1, whereby the bow spring 208 is fastened to the housing 1.
  • the bend 213 is connected to an electrical connection 215.
  • pairs of tabs facing away from the leg 209 are formed with spaced tabs 216, 217 and 218, 219, respectively.
  • the shift finger 207 overlaps the tabs 218 and 219.
  • a contact rocker 220 which consists of two arms 222 and 223 which are angled in an angular range 221.
  • the arms 222 and 223 are, for example, at an angle of 140 ° to one another.
  • the bow spring 208 presses the contact rocker 220 against the shift finger 207.
  • the contact rocker 220 is provided with projections 224.
  • Each of the two approaches 224 engages between tabs 216 and 217 or 218 and 219 of a pair of tabs.
  • a bump 225 is formed inside the angular region 221.
  • a contact knob 226 is attached, which is assigned a counter contact 227, which is fixed on the housing 1.
  • the arm 223 is at least as long as the overstroke H2.
  • a bearing 228 can be provided for a snap spring 229 attached to the housing 1. However, this can also be omitted. It only serves to improve the snap behavior.
  • the bow spring 208 is shown in its relaxed state. In contrast, it is biased in Figure 8 between the surface 206 and the contact rocker 220 or the shift finger 207.
  • the shift finger 207 moves over the hump 225 during the shift stroke H1 and thereby presses on the arm 223, which snaps over.
  • the contact knob 226 is tilted to the mating contact 227.
  • the arm 223 bears against the leg 210.
  • the electrical contact is now closed via the connection 215, the bend 230, the leg 210 and the contact rocker 220, so that the switch is switched on.
  • the aforementioned rotary potentiometer is adjusted accordingly.
  • the shift finger 207 is displaced in the region of the overstroke H2, it always rests on the arm 223. Due to the spring force of the bow spring 208, the contact knob 226 is pressed increasingly against the counter contact 227 via the spring arm 223 resting on its leg 210. In the area of the overstroke H2, a secure contact of the contact knob 226 with the mating contact 227 is therefore always guaranteed.
  • the compression spring 19 presses it into its starting position.
  • the switching finger 207 comes again over the hump 225 and reaches the arm 222.
  • the contact knob 226 is forcibly lifted from the counter contact 227 regardless of the action of the bow spring 208.
  • the switch is open again.

Landscapes

  • Push-Button Switches (AREA)
EP85102369A 1984-04-03 1985-03-02 Commutateur à curseur verrouillable Expired - Lifetime EP0157186B1 (fr)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
DE3412378 1984-04-03
DE19843412378 DE3412378A1 (de) 1984-04-03 1984-04-03 Schalter
DE19843412377 DE3412377A1 (de) 1984-04-03 1984-04-03 Schalter
DE3412377 1984-04-03
DE3412379 1984-04-03
DE3412379 1984-04-03
DE3421670 1984-06-09
DE19843421670 DE3421670A1 (de) 1984-04-03 1984-06-09 Arretierbarer schiebeschalter

Publications (3)

Publication Number Publication Date
EP0157186A2 true EP0157186A2 (fr) 1985-10-09
EP0157186A3 EP0157186A3 (en) 1987-03-25
EP0157186B1 EP0157186B1 (fr) 1990-01-10

Family

ID=27433103

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85102369A Expired - Lifetime EP0157186B1 (fr) 1984-04-03 1985-03-02 Commutateur à curseur verrouillable

Country Status (2)

Country Link
US (1) US4763101A (fr)
EP (1) EP0157186B1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999052118A1 (fr) * 1998-04-04 1999-10-14 Marquardt Gmbh Interrupteur electrique
US9562647B2 (en) 2005-01-25 2017-02-07 Framo Engineering As Cryogenic fluids transfer system with transfer spills containment
WO2019197123A1 (fr) * 2018-04-09 2019-10-17 Hilti Aktiengesellschaft Commutateur pour machine-outil et logique de commutation

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11424088B2 (en) * 2019-01-08 2022-08-23 Shenzhen Topband Co., Ltd. Electronic device, PCB and electric tool
US12002645B2 (en) * 2019-01-08 2024-06-04 Shenzhen Topband Co., Ltd. Electronic device, PCB and electric tool

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1115014A (fr) * 1954-11-22 1956-04-18 Contacteur
US3094594A (en) * 1958-03-10 1963-06-18 James P Watson Snap acting mechanism
US3378662A (en) * 1967-07-25 1968-04-16 Carling Electric Inc Variable speed control trigger for electric switch
US3646291A (en) * 1970-08-05 1972-02-29 Leviton Manufacturing Co Tease-proof electric switch
DE2363439A1 (de) * 1973-01-03 1974-07-04 Black & Decker Mfg Co Verriegelung fuer den betaetigungsschalter einer elektrisch angetriebenen werkzeugmaschine
DE2129823B2 (de) * 1971-06-16 1975-09-18 J. & J. Marquardt, 7201 Rietheim Elektrischer Schalter

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2662317A (en) * 1945-04-02 1953-12-15 Mcgraw Electric Co Electric iron handle construction
US4455546A (en) * 1983-02-28 1984-06-19 Prescolite, A Div. Of U.S. Indus. Variable resistor and switch assembly having separate sliders
DE3342474A1 (de) * 1983-11-24 1985-06-13 Preh, Elektrofeinmechanische Werke Jakob Preh Nachf. Gmbh & Co, 8740 Bad Neustadt Schalter

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1115014A (fr) * 1954-11-22 1956-04-18 Contacteur
US3094594A (en) * 1958-03-10 1963-06-18 James P Watson Snap acting mechanism
US3378662A (en) * 1967-07-25 1968-04-16 Carling Electric Inc Variable speed control trigger for electric switch
US3646291A (en) * 1970-08-05 1972-02-29 Leviton Manufacturing Co Tease-proof electric switch
DE2129823B2 (de) * 1971-06-16 1975-09-18 J. & J. Marquardt, 7201 Rietheim Elektrischer Schalter
DE2363439A1 (de) * 1973-01-03 1974-07-04 Black & Decker Mfg Co Verriegelung fuer den betaetigungsschalter einer elektrisch angetriebenen werkzeugmaschine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999052118A1 (fr) * 1998-04-04 1999-10-14 Marquardt Gmbh Interrupteur electrique
US6555773B1 (en) * 1998-04-04 2003-04-29 Marquardt Gmbh Electric switch
US9562647B2 (en) 2005-01-25 2017-02-07 Framo Engineering As Cryogenic fluids transfer system with transfer spills containment
WO2019197123A1 (fr) * 2018-04-09 2019-10-17 Hilti Aktiengesellschaft Commutateur pour machine-outil et logique de commutation
US11389941B2 (en) 2018-04-09 2022-07-19 Hilti Aktiengesellschaft Switch for machine tool and switching logic

Also Published As

Publication number Publication date
EP0157186A3 (en) 1987-03-25
US4763101A (en) 1988-08-09
EP0157186B1 (fr) 1990-01-10

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