EP1151449A1 - Push-pull switch - Google Patents
Push-pull switchInfo
- Publication number
- EP1151449A1 EP1151449A1 EP00907427A EP00907427A EP1151449A1 EP 1151449 A1 EP1151449 A1 EP 1151449A1 EP 00907427 A EP00907427 A EP 00907427A EP 00907427 A EP00907427 A EP 00907427A EP 1151449 A1 EP1151449 A1 EP 1151449A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- actuating
- push
- pull switch
- actuating plunger
- handle
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H15/00—Switches having rectilinearly-movable operating part or parts adapted for actuation in opposite directions, e.g. slide switch
- H01H15/02—Details
- H01H15/06—Movable parts; Contacts mounted thereon
-
- 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
Definitions
- the invention relates to a push-pull switch with an actuating mechanism which has a handle, an associated with the handle actuating plunger for actuating a switching element and a rosette in which the actuating plunger is axially displaceably mounted, the actuating plunger being a latching element that lock onto the rosette when activated.
- a generic push-pull switch has been delivered to the electronics market for years.
- the system used here works with detents that are in the axial direction, i.e. enable two or more positions of the handle in the direction of the switching element paths.
- the balls used here as locking elements move back and forth in the same way between the ON and OFF positions.
- the balls snap spring-loaded from a valley in the ON position over a mountain into a valley behind for the OFF position and back in the same way.
- the holding force of the detent is reduced by the restoring forces of the actuated switching elements. It is therefore necessary to ensure a sufficiently large difference between the force actually required for snapping back and the sum of the maximum restoring forces of the switching elements.
- the resetting force is oversized, which means that the material is constantly subjected to high loads. As a result, the service life is limited and the ease of use is reduced by the extremely hard locking.
- the invention is therefore based on the object of creating a push-pull switch of the type mentioned above for electromechanical command devices which cannot be reset by the contact pressure of the actuated switching elements and which offers a maximum of functional reliability and ease of use.
- the object is achieved in that the actuating plunger engages with a thread in the handle, as a result of which a pulling movement on the handle can be converted into a rotary movement of the actuating plunger to release the latching.
- the rosette has a tangentially extending and tapering recess in which locking elements designed as balls are accommodated in the ON position.
- This version enables the rotary unlocking, in which the actuating plunger is rotated, thereby gently releasing the latching elements via the contour of the recess and returning them to their starting position, i.e. the OFF position.
- the balls are accommodated in the recess by more than half their diameter in the ON position. Even strong impacts and vibrations in connection with large restoring forces of the actuated switching elements cannot lead to resets with such a design.
- FIG. 2 shows a sectional illustration of the actuating mechanism according to FIG. 1 in the ON position
- FIG. 3 shows a further sectional illustration of the actuating mechanism according to FIG. 1 in the ON position
- FIG. 4 shows a cross-sectional view of the actuating mechanism in the area of the latching.
- FIGs 1, 2 show a sectional view of an actuating mechanism 1 according to the invention of a push-pull switch.
- the actuating mechanism 1 is shown in the starting position "OFF".
- the actuating mechanism 1 comprises a handle 2, an actuating plunger 3 connected thereto for actuating a. Switching element and a cylindrical rosette 4.
- the handle 2 with the actuating plunger 3 is axially displaceable in the actuating direction according to arrow 5.
- the actuating plunger 3 is provided with spring-mounted balls 6 as locking elements which, in the OFF position according to FIG. 1, engage in an upper recess 7 on the inner wall of the rosette 4.
- the balls 6 abut a slope 8 of a projection 9, which is followed by a further recess 10.
- the transition of the projection 9 into the further recess 10 is formed at right angles to the direction of actuation.
- the further recess 10 serves as a locking valley, in which the balls 6 lock when the handle 2 is actuated and thus hold the actuating plunger 3 in the ON position according to FIGS. 2 and 3.
- the recess 10 extends tangentially on the inner circumference of the rosette 4 with a taper according to FIG. 4.
- the handle 2 is provided with a steep thread 11 with which the actuating plunger 3 is engaged.
- a compression torsion spring 12 is supported at its lower end on the rosette 4 and at its upper end on the actuating plunger 3. The operation of this operating mechanism is explained below.
- the balls 6 are returned as latching elements in a different way from ON to OFF than from OFF to ON in such a way that only conscious action on the control panel makes this possible.
- ON actuation an irreversible locking takes place in the axial direction, since the balls 6 snap behind the projection 9 at right angles to the actuation direction according to arrow 5 by more than half their diameter into the recess 10, from which they are released only in the tangential direction can.
- This is not possible with the restoring forces acting in the axial direction of the switching elements acting on the actuating plunger 3, which provides extreme security against incorrect resetting due to impact, vibration, etc.
Landscapes
- Push-Button Switches (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19903031 | 1999-01-26 | ||
DE19903031 | 1999-01-26 | ||
PCT/DE2000/000120 WO2000045402A1 (en) | 1999-01-26 | 2000-01-13 | Push-pull switch |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1151449A1 true EP1151449A1 (en) | 2001-11-07 |
EP1151449B1 EP1151449B1 (en) | 2002-09-18 |
Family
ID=7895433
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00907427A Expired - Lifetime EP1151449B1 (en) | 1999-01-26 | 2000-01-13 | Push-pull switch |
Country Status (4)
Country | Link |
---|---|
US (1) | US6483062B1 (en) |
EP (1) | EP1151449B1 (en) |
DE (1) | DE50000525D1 (en) |
WO (1) | WO2000045402A1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6268577B1 (en) * | 1999-12-16 | 2001-07-31 | Siemens Energy & Automation, Inc. | Push-pull switch operator |
DE10253597B4 (en) * | 2002-11-15 | 2005-01-20 | Ellenberger & Poensgen Gmbh | Sealed circuit breaker with push-pull operation |
US7309840B1 (en) * | 2005-07-23 | 2007-12-18 | Emily Lo | Emergency stopping safety device of paper shredder |
CN201000832Y (en) * | 2006-12-27 | 2008-01-02 | 世庆实业股份有限公司 | Emergency stop switch for paper crusher |
ATE529873T1 (en) * | 2008-04-18 | 2011-11-15 | Abb Ab | ACTUATING DEVICE AND AN ELECTRICAL SWITCHING DEVICE EQUIPPED THEREFROM |
JP6013970B2 (en) * | 2013-05-21 | 2016-10-25 | 株式会社東海理化電機製作所 | Shift operating device |
JP6859948B2 (en) * | 2017-12-28 | 2021-04-14 | オムロン株式会社 | Push-button switch |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2836686A (en) * | 1956-07-30 | 1958-05-27 | Chicago Telephone Supply Corp | Push-pull switch and variable resistor combination |
GB1225496A (en) | 1967-06-22 | 1971-03-17 | ||
DE2853880C2 (en) | 1978-12-13 | 1982-05-06 | Siemens AG, 1000 Berlin und 8000 München | Push button |
JPH0512892Y2 (en) * | 1987-08-06 | 1993-04-05 | ||
DE4036671C2 (en) | 1990-11-17 | 1995-04-20 | Eaton Controls Gmbh | Motor vehicle light switch |
US5345050A (en) * | 1993-06-01 | 1994-09-06 | Caterpillar Inc. | Switch actuating assembly |
DE19544702A1 (en) | 1995-11-30 | 1997-06-05 | Marquardt Gmbh | Electrical switch |
DE29615428U1 (en) | 1996-09-05 | 1997-01-02 | HBC-electronic Funktechnik GmbH, 74564 Crailsheim | Emergency switch |
US6153841A (en) * | 1999-10-21 | 2000-11-28 | Eaton Corporation | Control apparatus |
US6268577B1 (en) * | 1999-12-16 | 2001-07-31 | Siemens Energy & Automation, Inc. | Push-pull switch operator |
-
2000
- 2000-01-13 WO PCT/DE2000/000120 patent/WO2000045402A1/en active IP Right Grant
- 2000-01-13 DE DE50000525T patent/DE50000525D1/en not_active Expired - Lifetime
- 2000-01-13 EP EP00907427A patent/EP1151449B1/en not_active Expired - Lifetime
- 2000-01-13 US US09/890,073 patent/US6483062B1/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO0045402A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP1151449B1 (en) | 2002-09-18 |
US6483062B1 (en) | 2002-11-19 |
WO2000045402A1 (en) | 2000-08-03 |
DE50000525D1 (en) | 2002-10-24 |
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