EP1077457B1 - Sicherheitsschalter - Google Patents
Sicherheitsschalter Download PDFInfo
- Publication number
- EP1077457B1 EP1077457B1 EP00123046A EP00123046A EP1077457B1 EP 1077457 B1 EP1077457 B1 EP 1077457B1 EP 00123046 A EP00123046 A EP 00123046A EP 00123046 A EP00123046 A EP 00123046A EP 1077457 B1 EP1077457 B1 EP 1077457B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- key
- control disk
- safety switch
- locking element
- channel
- 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 - Lifetime
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H27/00—Switches operated by a removable member, e.g. key, plug or plate; Switches operated by setting members according to a single predetermined combination out of several possible settings
- H01H27/002—Switches operated by a removable member, e.g. key, plug or plate; Switches operated by setting members according to a single predetermined combination out of several possible settings wherein one single insertion movement of a key comprises an unlocking stroke and a switch actuating stroke, e.g. security switch for safety guards
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H27/00—Switches operated by a removable member, e.g. key, plug or plate; Switches operated by setting members according to a single predetermined combination out of several possible settings
- H01H27/002—Switches operated by a removable member, e.g. key, plug or plate; Switches operated by setting members according to a single predetermined combination out of several possible settings wherein one single insertion movement of a key comprises an unlocking stroke and a switch actuating stroke, e.g. security switch for safety guards
- H01H2027/005—Switches operated by a removable member, e.g. key, plug or plate; Switches operated by setting members according to a single predetermined combination out of several possible settings wherein one single insertion movement of a key comprises an unlocking stroke and a switch actuating stroke, e.g. security switch for safety guards the key receiving part having multiple openings to allow keys from different directions to operate the switch
Definitions
- the invention relates to a safety switch with the features of The preamble of claim 1.
- Safety switch as for example from DE 44 08 024 A1 are known, serve the power supply of electrical Make machines dependent on whether certain protective devices the machine is in the correct position. With some Applications it can happen that the safety switch Control circuit for the machine power supply does not switch because the protective devices have larger tolerances than the Allows safety switch.
- a safety switch according to the The preamble of claim 1 is known.
- the disadvantage here is that in the unlocked or the control disc is unlocked, for example by vibrations or vibrations can be moved in such a way that the key or Actuator is moved out of the key channel.
- the invention is therefore based on the object of an improved To create safety switches of the type mentioned. This task is solved by a safety switch defined in claim 1. Particular embodiments of the invention are in the subclaims certainly.
- the means for fixing in that the control disk has at least one recess has that with a movable relative to the control disc locking element interacts.
- the recess can, for example, in a laterally on the control disc molded material portion may be provided while the locking element then on a side of the control disc and relative to this movable locking member is formed.
- the recess and the locking element can, for example, also be implemented in such a way that the recess is provided in a region of the control disk which projects into the key channel when the control disk rotates, and that the locking element is provided on the key.
- the locking element is particularly simple to implement by means of shoulders provided on the inside of the slit.
- the recess is then groove-shaped, whereby the control disk maintains its break resistance.
- the recess could also penetrate the entire thickness of the control disk, in which case a continuous material section could be provided on the key instead of the shoulders.
- the functionality of the safety switch is preferably promoted in that the means for fixing are provided symmetrically on both sides of the control disc.
- Safety switch arises when this two, not in parallel to each other, preferably perpendicular to each other Has key channels into which the key can optionally be inserted can.
- Actuators which, when the key is not inserted, into the Key channels protrude and preferably with locking members for fixing the control disc are connected in this position, give when inserting the control disc free.
- the number of components required is reduced in a simple manner if such an actuator is movable along a bisector of the two key channels and can thus protrude into both key channels at the same time. Another advantageous reduction in the number of components is achieved if that Actuator is also designed as a locking member.
- Safety switch has the switch housing 1 in the in the drawing head part shown in the longitudinal direction of the switch housing 1st extending first key channel 3. Furthermore, in the head part of the Switch housing 1, a second key channel 5 is provided, which runs perpendicular to the first key channel 3. A key 7 is from outside insertable either in one of the two key channels 3 or 5.
- a control disk 9 is rotatable in the head part of the switch housing 1 stored, the axis of rotation 11 both perpendicular to the first Key channel 3 and perpendicular to the second key channel 5. The control disk 9 projects into both key channels 3 and 5.
- control disc 9 On the control disc 9 is a, not shown in the drawing, in Longitudinal direction of the switch housing sliding plunger. At the other The end of this plunger is also not in the switch housing 1 shown switch provided. With the by introducing the Key 7 caused rotation of the control disc 9th the latter moves the plunger and thereby inevitably actuates the Switch.
- Each of the two the same formed material parts 15 has one with respect to the axis of rotation 11 radially opposite the groove 13, groove-like first recess 17 and two more, offset by 90 ⁇ , also formed like a groove Recesses 19 on.
- the further recesses 19 are located the two pointed ends of the oval material section 15, while the first Recess 17 is provided on one long side.
- each locking member 21 has an elongated hole 23, which encloses the axis of rotation 11.
- This direction of movement is at the intersection of the two Key channels 3 and 5 aligned and running along one of them Bisectors, i.e. offset by 45 ⁇ to the key channels. That on this crossing point is aligned end of the locking member 21 designated 21 '.
- the locking member 21 by means of one in the drawing Spring not shown supported on the switch housing 1.
- the locking member 21 On the the Control disc 9 facing side, the locking member 21 has a raised ratchet tooth 25, which positively in both the first Recess 17 and the other recesses 19 of the Lot of material 15 of the control disk 9 can engage. The possible The depth of engagement is less than in the case of the further recesses 19 at the first recess 17.
- This end 21 ' the locking member 21, which also acts as an actuator, is as Ramp designed for key 7.
- the key 7 If the key 7 is in one of the two key channels 3 or 5 introduced, the key 7 first hits against the one acting as a ramp End 21 'of the locking member 21 and thereby pushes it Locking member 21 back against the spring force, that is from the Key channel 3 or 5 out. At the same time, the ratchet tooth 25 is released the first recess 17. When the key 7 is inserted further take its crossbars 7 ', which engages in a groove 13, respectively Control disc 9 with. At the same time, the material section 15 runs with her Circumference past the ratchet tooth 25. Because of the eccentricity of the Lot of material 15, the locking member 21 is further from the Key channel 3 or 5 pushed out as the key 7 can.
- the invention Safety switch can be designed so that starting from the fixed position of the spool key 7 further in the Key channel 3 or 5 can be introduced in the manner of a Trail, the crossbars 7 'so leave the grooves 13 again.
- Safety switch is also a switch housing 101 with a Key channel 105 provided.
- a slit, forked Key 107 can be inserted into key channel 105.
- a control disc 109 which protrudes into the key channel 105, rotates when the Key 107 in that transverse webs 107 'of the key 107 in grooves 113 engage, which is provided on both sides of the control disk 109 are.
- Around the axis of rotation 111 of the control disk 109 is one Material 115 formed on the control disc 109, the one flank 117.
- a locking member 121 is located next to each material section 115 provided which encloses the axis of rotation 111 with an elongated hole 123 and is only shown in Fig. 2A.
- the locking member 121 is movable perpendicular to the key channel 105 and not by means of one illustrated spring supported.
- One on the inside of the Locking member 121 provided locking tooth 125 lies on the flank 117 of the material section 115 as long as the key 107 is outside of the key channel 105 is located.
- groove-like recesses 119 are provided, which are perpendicular to the radial Run direction and at one end on the circumference of the control disk 109 lead. This edge area can when the control disc rotates 109 get into the key channel 105.
- the key 107 When the key 107 is inserted into the key channel 105, pushes the tip of the key 107 the locking member 121 against the Spring force back, the locking tooth 125 detaching from the flank 117.
- the crossbars 107 'of the key 107 take the control disk 109 so long with, until the crossbars 107 'are viewed behind in the direction of insertion the control disc 109 are.
- the control disk 109 moves one 2A indicated plunger, which in turn actuates the switch.
- the groove-like recesses 119 along the key channel 105 aligned as shown in Fig. 2C.
- the key 107 can now be further introduced into the key channel 105 in the manner of a wake, provided on the inside of the key 107 Shoulders 127 engage in the groove-like recesses 119 and thus the Secure control disc 109.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Switch Cases, Indication, And Locking (AREA)
- Air Bags (AREA)
- Control Of Combustion (AREA)
- Holding Or Fastening Of Disk On Rotational Shaft (AREA)
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
Description
Die Funktionsfähigkeit des Sicherheitsschalters wird vorzugsweise dadurch gefördert, daß die Mittel zum Fixieren symmetrisch auf beiden Seiten der Steuerscheibe vorgesehen sind.
- Fig. 1A bis 1C
- einen Schnitt durch den Kopfteil des ersten Ausführungsbeispiels mit unterschiedlichen Einführtiefen des Schlüssels,
- Fig. 2A bis 2C
- einen entsprechenden Schnitt durch das zweite Ausführungsbeispiel,
- Fig. 3
- eine Ansicht des Schlüssels des zweiten Ausführungsbeispiels.
Claims (10)
- Sicherheitsschalter mita) einem Schaltergehäuse (1),b) wenigstens einem Schlüsselkanal (3, 5) im Schaltergehäuse (1), in den von außen ein Schlüssel (7) einführbar ist,c) einer Steuerscheibe (9), die in den Schlüsselkanal (3, 5) ragt und sich beim Einführen des Schlüssels (7) dreht, undd) Mittel (15, 19, 25) zum Fixieren der Steuerscheibe (9) bei vollständig eingeführtem Schlüssel (7),
dadurch gekennzeichnet,e) daß die Mittel (15, 19, 25) zum Fixieren der Steuerscheibe (9) eine seitlich an die Steuerscheibe (9) angeformte und drehfest mit dieser verbundene Materialpartie (15) und ein mit der Materialpartie (15) in die Steuerscheibe (9) fixierende Wirkverbindung bringbares Sperrelement (25) aufweisen,f) und daß beim Herausziehen des Schlüssels (7) aus dem eingeführten Zustand das Sperrelement (25) eine Kraft auf die Materialpartie (15) ausübt, die ein der Herausziehbewegung des Schlüssels (7) entgegengerichtetes Drehmoment der Steuerscheibe (9) bewirkt. - Sicherheitsschalter nach Anspruch 1, dadurch gekennzeichnet, daß das entgegengerichtete Drehmoment durch eine Erhöhung der die Herausziehbewegung des Schlüssels (7) bewirkenden Kraft überwindbar ist.
- Sicherheitsschalter nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Sperrelement (25) in radialer Richtung, bezogen auf die Steuerscheibe (9), federkraftbelastet in die Steuerscheibe (9) fixierende Wirkverbindung mit der Materialpartie (15) bringbar ist.
- Sicherheitsschalter nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Materialpartie (15) eine Ausnehmung (19) aufweist, in die das Sperrelement (25) federkraftbelastet in Eingriff bringbar ist.
- Sicherheitsschalter nach Anspruch 4, dadurch gekennzeichnet, daß bei Erhöhung der die Herausziehbewegung des Schlüssels (7) bewirkenden Kraft das Sperrelement (25) entgegen der auf ihn wirkenden Federkraft aus der Ausnehmung (19) herausbewegbar ist und damit die Steuerscheibe (9) für eine Drehbewegung freigibt.
- Sicherheitsschalter nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Mittel (15, 19, 25) zum Fixieren die Steuerscheibe (9) auch bei nicht eingeführtem Schlüssel (7) fixieren.
- Sicherheitsschalter nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Mittel (15, 19, 25) zum Fixieren zu beiden Seiten der Steuerscheibe (9) vorgesehen sind.
- Sicherheitsschalter nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß das Schaltergehäuse (1) zwei nicht parallel zueinander verlaufende Schlüsselkanäle (3, 5) ausbildet und ein mit dem Sperrelement (25) in Wirkverbindung stehendes Betätigungsglied bei nicht eingeführtem Schlüssel (7) in beide Schlüsselkanäle ragt.
- Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, daß das Betätigungsglied einstückig das Sperrelement (25) ausbildet.
- Vorrichtung nach Anspruch 8 oder 9, dadurch gekennzeichnet, daß die Steuerscheibe (9) beim Einführen des Schlüssels (7) in den einen Schlüsselkanal (3) in einer ersten Richtung drehbar ist und beim Einführen in den anderen Schlüsselkanal (5) in einer zweiten, der ersten entgegengesetzten Richtung drehbar ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19649717A DE19649717A1 (de) | 1996-11-30 | 1996-11-30 | Sicherheitsschalter |
DE19649717 | 1996-11-30 | ||
EP97951250A EP0941549B1 (de) | 1996-11-30 | 1997-11-20 | Sicherheitsschalter |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97951250.6 Division | 1998-06-11 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1077457A2 EP1077457A2 (de) | 2001-02-21 |
EP1077457A3 EP1077457A3 (de) | 2001-03-14 |
EP1077457B1 true EP1077457B1 (de) | 2002-12-11 |
Family
ID=7813252
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00123046A Expired - Lifetime EP1077457B1 (de) | 1996-11-30 | 1997-11-20 | Sicherheitsschalter |
EP97951250A Expired - Lifetime EP0941549B1 (de) | 1996-11-30 | 1997-11-20 | Sicherheitsschalter |
EP99124187A Expired - Lifetime EP0982747B1 (de) | 1996-11-30 | 1997-11-20 | Sicherheitsschalter |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97951250A Expired - Lifetime EP0941549B1 (de) | 1996-11-30 | 1997-11-20 | Sicherheitsschalter |
EP99124187A Expired - Lifetime EP0982747B1 (de) | 1996-11-30 | 1997-11-20 | Sicherheitsschalter |
Country Status (6)
Country | Link |
---|---|
US (1) | US6084185A (de) |
EP (3) | EP1077457B1 (de) |
JP (1) | JP2001504981A (de) |
AT (3) | ATE201115T1 (de) |
DE (4) | DE19649717A1 (de) |
WO (1) | WO1998025284A1 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1292975B1 (it) † | 1997-04-11 | 1999-02-11 | Pizzato Elettrica Srl | Interruttore di sicurezza a chiave. |
DE19859260C2 (de) * | 1998-12-22 | 2001-03-01 | Euchner Gmbh & Co | Sicherheitsschalter zum Schalten einer elektrischen Verbindung in Abhängigkeit des Schließzustandes einer zu überwachenden Einrichtung |
DE19917211C1 (de) | 1999-04-16 | 2000-11-16 | Euchner Gmbh & Co | Vorrichtung zum Schalten einer Verbindung in Abhängigkeit des Zustandes einer zu überwachenden Einrichtung, insbesondere Sicherheitsschalter |
GB0214205D0 (en) * | 2002-06-19 | 2002-07-31 | Eja Ltd | Lockable switch mechanism |
US7928330B2 (en) * | 2006-09-29 | 2011-04-19 | Rockwell Automation Limited | Safety switch |
TWM319773U (en) * | 2007-03-08 | 2007-10-01 | Healthstream Taiwan Inc | Control mechanism for safe switch of exercise facilities |
DE102011121235A1 (de) | 2011-12-12 | 2013-06-13 | Euchner Gmbh + Co. Kg | Modul für einen Sicherheitsschalter, Sicherheitsschalter mit einem solchen Modul sowie Betätiger für einen solchen Sicherheitsschalter |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3209414A1 (de) * | 1981-01-14 | 1983-09-22 | K.A. Schmersal Gmbh & Co, 5600 Wuppertal | Sicherheitsschalter fuer schutzabdeckungen u.dgl. |
DE3100862C2 (de) * | 1981-01-14 | 1984-02-09 | K.A. Schmersal Gmbh & Co, 5600 Wuppertal | Sicherheitsschalter |
US4963706A (en) * | 1989-01-12 | 1990-10-16 | Eja Engineering Company Limited | Safety switch assemblies |
DE4039652C1 (en) * | 1990-12-12 | 1992-03-05 | Kloeckner-Moeller Gmbh, 5300 Bonn, De | Detachable safety-interlock for electrical switch - has key guides chamfered to facilitate final engagement with coded cam |
US5587569A (en) * | 1992-06-02 | 1996-12-24 | E. J. A. Engineering Plc | Safety switch assemblies |
DE4303367C1 (de) * | 1993-02-05 | 1994-02-24 | Schmersal K A Gmbh & Co | Sicherheitsschalter |
DE4338910C1 (de) * | 1993-11-15 | 1995-02-16 | Bernstein Hans Spezialfabrik | Sicherheitsschalter |
DE4408024C5 (de) * | 1994-03-10 | 2007-09-06 | Euchner Gmbh + Co. Kg | Sicherheitsschalter |
DE4436579C2 (de) * | 1994-10-13 | 1997-05-22 | Bernstein Hans Spezialfabrik | Sicherheitsschalter |
GB9507933D0 (en) * | 1995-04-19 | 1995-06-07 | Eja Eng Plc | Switch assemblies |
FR2741993B1 (fr) * | 1995-12-05 | 1998-01-16 | Schneider Electric Sa | Interrupteur electrique de securite a cle |
DE19602690C1 (de) * | 1996-01-26 | 1997-04-10 | Euchner & Co | Sicherheitsschalter |
DE29609012U1 (de) * | 1996-05-20 | 1996-10-24 | Hans Bernstein, Spezialfabrik für Schaltkontakte GmbH & Co, 32457 Porta Westfalica | Sicherheitsschalter |
-
1996
- 1996-11-30 DE DE19649717A patent/DE19649717A1/de not_active Withdrawn
-
1997
- 1997-11-20 AT AT97951250T patent/ATE201115T1/de not_active IP Right Cessation
- 1997-11-20 AT AT00123046T patent/ATE229691T1/de not_active IP Right Cessation
- 1997-11-20 DE DE59708969T patent/DE59708969D1/de not_active Expired - Lifetime
- 1997-11-20 EP EP00123046A patent/EP1077457B1/de not_active Expired - Lifetime
- 1997-11-20 WO PCT/EP1997/006478 patent/WO1998025284A1/de active IP Right Grant
- 1997-11-20 US US09/308,489 patent/US6084185A/en not_active Expired - Lifetime
- 1997-11-20 DE DE59709207T patent/DE59709207D1/de not_active Expired - Lifetime
- 1997-11-20 EP EP97951250A patent/EP0941549B1/de not_active Expired - Lifetime
- 1997-11-20 DE DE59703519T patent/DE59703519D1/de not_active Expired - Lifetime
- 1997-11-20 EP EP99124187A patent/EP0982747B1/de not_active Expired - Lifetime
- 1997-11-20 AT AT99124187T patent/ATE231649T1/de not_active IP Right Cessation
- 1997-11-20 JP JP52512998A patent/JP2001504981A/ja not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
DE59708969D1 (de) | 2003-01-23 |
JP2001504981A (ja) | 2001-04-10 |
EP0941549A1 (de) | 1999-09-15 |
EP0941549B1 (de) | 2001-05-09 |
ATE231649T1 (de) | 2003-02-15 |
EP0982747A2 (de) | 2000-03-01 |
EP0982747B1 (de) | 2003-01-22 |
ATE201115T1 (de) | 2001-05-15 |
WO1998025284A1 (de) | 1998-06-11 |
US6084185A (en) | 2000-07-04 |
ATE229691T1 (de) | 2002-12-15 |
DE59709207D1 (de) | 2003-02-27 |
EP1077457A2 (de) | 2001-02-21 |
DE59703519D1 (de) | 2001-06-13 |
EP0982747A3 (de) | 2000-11-22 |
DE19649717A1 (de) | 1998-06-04 |
EP1077457A3 (de) | 2001-03-14 |
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