EP0982747B1 - Sicherheitsschalter - Google Patents
Sicherheitsschalter Download PDFInfo
- Publication number
- EP0982747B1 EP0982747B1 EP99124187A EP99124187A EP0982747B1 EP 0982747 B1 EP0982747 B1 EP 0982747B1 EP 99124187 A EP99124187 A EP 99124187A EP 99124187 A EP99124187 A EP 99124187A EP 0982747 B1 EP0982747 B1 EP 0982747B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- key
- safety switch
- control disc
- control disk
- switch according
- 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 Preamble of claim 1.
- Safety switch of this kind as for example from the DE 44 08 024 A1 are known to serve the power supply of electrical machines depending on whether certain Protective devices of the machine are in the correct position. In some applications, it may happen that the safety switch does not switch the machine power supply control circuit, because the protective devices have larger tolerances than the safety switch allows.
- WO 93/24947 shows a generic safety switch two non-parallel key channels and a movable actuator of a device for fixing the Control disc.
- the safety switch has a large number of individual parts and is therefore expensive to manufacture and assemble.
- the invention is based on the problem of a safety switch which overcomes the disadvantages of the prior art, especially simple and inexpensive to manufacture and Assembly is and is also versatile.
- the safety switch according to the invention is simple in construction and has few items on. Through the two, not parallel to each other and preferably perpendicular to each other extending key channels in the Optionally, the key can be inserted is the safety switch versatile. Actuators, which when not imported Key in the keyways protrude and preferably with locking members for fixing the control disk are connected in this position, give when inserting the key, the control disc free. The number of necessary components is easily reduced if such Actuator along an angle bisector of the two Key channels is movable and thereby in both key channels can protrude at the same time. Another advantageous reduction in the number of Components is achieved when the actuator at the same time as Locking member is formed
- the introduced key has after completion of the rotation of the Control disc a certain insertion depth. Unless the means of fixing a deeper insertion of the key, so a larger "caster” can not be used, can also not exactly closing protective devices be reliably monitored. They are advantageous embodiments provided, in which at least part of this means the control disk even when the key is not inserted.
- the means for fixing realized by the fact that the control disc at least one recess having, with a relative to the control disc movable blocking element interacts.
- the recess may, for example, in a side of the control disk be provided integrally formed material part, while the blocking element then arranged on a side of the control disk and relative to this movable locking member is formed.
- these Designs can be used parts already known Safety switches are present. This reduces the number of necessary parts and the necessary modifications of the tools. A particularly space-saving design results when the locking member perpendicular to the axis of rotation of the control disc is mobile.
- Recess and blocking element for example, but so be realized that the recess in an area of the control disk is provided, which upon rotation of the control disk in the Key channel protrudes, and that the blocking element is provided on the key.
- a longitudinally slotted, fork-shaped key results a particularly simple realization of the blocking element by on paragraphs provided on the inside of the slot.
- the recess is then formed groove-like, whereby the control disc their breakage maintains.
- the recess could also be the entire thickness of the Pass control disc, in which case the key instead of paragraphs a continuous piece of material could be provided.
- the functionality of the safety switch is preferably characterized encouraged that the means of fixing symmetrical on both sides of the Control disk are provided.
- Safety switch has the switch housing 1 in the in the drawing shown headboard in the longitudinal direction of the switch housing. 1 extending first key channel 3. Furthermore, in the head part of Switch housing 1, a second keyway 5 is provided, which perpendicular to the first keyway 3 extends. A key 7 is from outside either in one of the two key channels 3 or 5 insertable. In the head part of the switch housing 1, a control disk 9 is rotatable stored, wherein the axis of rotation 11 both perpendicular to the first Key channel 3 and perpendicular to the second keyway 5 runs. The control disk 9 projects into both key channels 3 and 5.
- the key 7 is not inserted in the crossing area the two key channels 3 and 5, the control disk 9 has Each side has a radially outwardly extending, short groove 13.
- a transverse web 7 ' is provided in the end region of the key 7.
- control disk 9 On the control disk 9 is not shown in the drawing, in Longitudinal direction of the switch housing displaceable plunger. At the other End of this plunger is also not shown in the switch housing 1 Switch provided. In by the insertion of the key 7th caused rotational movement of the control disk 9 moves the latter the plunger and thereby inevitably actuates the switch.
- Each of the same formed material parts 15 has a with respect to the rotation axis eleventh radially of the groove 13 opposite, groove-like first recess 17 and two offset by 90 °, also groove-like further trained 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 a longitudinal side.
- each locking member 21 has a slot 23, which surrounds the axis of rotation 11
- guides in the switch housing 1 is the only possible Defined direction of movement of the locking member 21, and that perpendicular to the axis of rotation 11 and at the same time in the direction of the elongated hole 23rd This direction of movement is at the intersection of the two Key channels 3 and 5 aligned and runs along one of their Angle bisector, ie offset by 45 ° to the key channels.
- the end of the Locking member 21 is denoted by 21 '.
- the key 7 first hits against the ramp acting End 21 'of the locking member 21 and thereby pushes the locking member 21 against the spring force back, so from the Key channel 3 or 5 out.
- the locking tooth 25 is released the first recess 17.
- the key 7th take its transverse webs 7 ', which engages in each case a groove 13, the control disk 9 with.
- the material section 15 runs with her Scope past the ratchet 25 over. Due to the eccentricity of Material part 15, the locking member 21 is still further from the Key channel 3 and 5 pushed out when it is the key 7.
- the safety switch according to the invention can be designed so that starting from the fixed position of the spool of the key. 7 further into the key channel 3 or 5 can be introduced in the art a caster, the transverse webs 7 'so leave the grooves 13 again.
- a switch housing 101 is provided with a keyway 105.
- On longitudinally slotted, forked key 107 is in the keyway 105th insertable.
- a control disk 109 which projects into the keyway 105, rotates upon insertion of the key 107 in that transverse webs 107 ' of the key 107 engage in grooves 113, which on both sides of the Control disk 109 are provided.
- To the axis of rotation 111 of Control disk 109 around is a material section 115 to the control disk 109 integrally formed, which has a flank 117.
- each material section 115 is a respective locking member 121 provided, which encloses the axis of rotation 111 with a slot 123 and only shown in FIG. 2A.
- the locking member 121 is perpendicular to the keyway 105 movable and not by means of a supported spring shown.
- One on the inside of the Locking member 121 provided ratchet 125 is located on the edge 117 of the material section 115, as long as the key 107 is outside of the keyway 105 is located.
- control disk 109 In an edge area of the control disk 109 are on both sides groove-like recesses 119 provided which perpendicular to the radial Run direction and at one end on the circumference of the control disk 109th lead. This edge area can be during a rotation of the control disk 109 enter the keyway 105.
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
- Fig. 1A bis 1C
- zeigen Schnitte durch den Kopfteil eines ersten Ausführungsbeispiels mit unterschiedlichen Einführtiefen des Schlüssels,
- Fig. 2A bis 2C
- zeigen einen entsprechenden Schnitt durch ein zweites Ausführungsbeispiel,
- Fig. 3
- zeigt eine Ansicht des Schlüssels des zweiten Ausführungsbeispiels.
Claims (10)
- Sicherheitsschalter mit einem Schaltergehäuse (1), zwei nicht parallel zueinander verlaufenden Schlüsselkanälen (3, 5) im Schaltergehäuse (1), in die von außen ein Schlüssel (7) einführbar ist, und einer Steuerscheibe (9), die in die Schlüsselkanäle (3, 5) ragt und sich beim Einführen des Schlüssels (7) dreht, dadurch gekennzeichnet, daß ein entlang einer Winkelhalbierenden der Schlüsselkanäle (3, 5) bewegliches Betätigungsglied bei nicht eingeführtem Schlüssel (7) in beide Schlüsselkanäle ragt.
- Sicherheitsschalter nach Anspruch 1, dadurch gekennzeichnet, daß ein seitlich von der Steuerscheibe (9) angeordnetes Verriegelungsglied (21) ein Sperrelement (25) zum Fixieren der Steuerscheibe (9) in mindestens einer ihrer beiden Endstellungen aufweist.
- Sicherheitsschalter nach Anspruch 2, dadurch gekennzeichnet, daß das Betätigungsglied einstückig das Verriegelungsglied (21) ausbildet.
- Sicherheitsschalter nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß zu beiden Seiten der Steuerscheibe (9) jeweils ein Verriegelungsglied (21) vorgesehen ist.
- Sicherheitsschalter nach einem der Ansprüche 2 bis 5, dadurch gekennzeichnet, daß das Verriegelungsglied (21) ein Langloch (23) aufweist, welches eine Drehachse (11) der Steuerscheibe (9) umschließt.
- Sicherheitsschalter nach Anspruch 5, dadurch gekennzeichnet, daß die Bewegungsrichtung des Verriegelungsglieds (21) durch Führungen im Schaltergehäuse (1) definiert ist und mit der Drehachse (11) einen rechten Winkel einschließt.
- Sicherheitsschalter nach einem der Ansprüche 2 bis 6, dadurch gekennzeichnet, daß das Verriegelungsglied (21) auf der der Steuerscheibe (9) zugewandten Seite als Sperrelement einen Sperrzahn (25) aufweist, der formschlüssig mit mindestens einer Ausnehmung (19) einer Materialpartie (15) zusammenwirkt, die seitlich an der Steuerscheibe (9) angeordnet ist und vorzugsweise einstückig von dieser ausgebildet ist.
- Vorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die Steuerscheibe (9) beim Einführen des Schlüssels (7) in den einen Schlüsselkanal (3) in eine Richtung drehbar ist und beim Einführen in den anderen Schlüsselkanal (5) in die andere Richtung drehbar ist.
- Sicherheitsschalter nach Anspruch 8, dadurch gekennzeichnet, daß in beiden Drehrichtungen der Steuerscheibe (9) ein elektrisches Schaltelement des Sicherheitsschalters betätigbar ist.
- Sicherheitsschalter nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß das Schaltergehäuse (1) an zwei, eine Kante bildenden Flächen jeweils eine Öffnung zum Einführen des Schlüssels (7) aufweist und daß die Öffnungen von der Kante im wesentlichen gleich beabstandet sind.
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 |
---|---|
EP0982747A2 EP0982747A2 (de) | 2000-03-01 |
EP0982747A3 EP0982747A3 (de) | 2000-11-22 |
EP0982747B1 true EP0982747B1 (de) | 2003-01-22 |
Family
ID=7813252
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97951250A Expired - Lifetime EP0941549B1 (de) | 1996-11-30 | 1997-11-20 | Sicherheitsschalter |
EP00123046A Expired - Lifetime EP1077457B1 (de) | 1996-11-30 | 1997-11-20 | Sicherheitsschalter |
EP99124187A Expired - Lifetime EP0982747B1 (de) | 1996-11-30 | 1997-11-20 | Sicherheitsschalter |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97951250A Expired - Lifetime EP0941549B1 (de) | 1996-11-30 | 1997-11-20 | Sicherheitsschalter |
EP00123046A Expired - Lifetime EP1077457B1 (de) | 1996-11-30 | 1997-11-20 | Sicherheitsschalter |
Country Status (6)
Country | Link |
---|---|
US (1) | US6084185A (de) |
EP (3) | EP0941549B1 (de) |
JP (1) | JP2001504981A (de) |
AT (3) | ATE229691T1 (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 |
ATE140339T1 (de) * | 1992-06-02 | 1996-07-15 | Eja Eng Plc | Schutzschalteinrichtungen |
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 | Bernstein Hans Spezialfabrik | Sicherheitsschalter |
-
1996
- 1996-11-30 DE DE19649717A patent/DE19649717A1/de not_active Withdrawn
-
1997
- 1997-11-20 AT AT00123046T patent/ATE229691T1/de not_active IP Right Cessation
- 1997-11-20 EP EP97951250A patent/EP0941549B1/de not_active Expired - Lifetime
- 1997-11-20 US US09/308,489 patent/US6084185A/en not_active Expired - Lifetime
- 1997-11-20 AT AT97951250T patent/ATE201115T1/de not_active IP Right Cessation
- 1997-11-20 EP EP00123046A patent/EP1077457B1/de not_active Expired - Lifetime
- 1997-11-20 JP JP52512998A patent/JP2001504981A/ja not_active Ceased
- 1997-11-20 WO PCT/EP1997/006478 patent/WO1998025284A1/de active IP Right Grant
- 1997-11-20 EP EP99124187A patent/EP0982747B1/de not_active Expired - Lifetime
- 1997-11-20 DE DE59708969T patent/DE59708969D1/de not_active Expired - Lifetime
- 1997-11-20 AT AT99124187T patent/ATE231649T1/de not_active IP Right Cessation
- 1997-11-20 DE DE59703519T patent/DE59703519D1/de not_active Expired - Lifetime
- 1997-11-20 DE DE59709207T patent/DE59709207D1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP1077457A3 (de) | 2001-03-14 |
EP1077457A2 (de) | 2001-02-21 |
US6084185A (en) | 2000-07-04 |
WO1998025284A1 (de) | 1998-06-11 |
EP1077457B1 (de) | 2002-12-11 |
DE19649717A1 (de) | 1998-06-04 |
EP0982747A3 (de) | 2000-11-22 |
ATE229691T1 (de) | 2002-12-15 |
ATE201115T1 (de) | 2001-05-15 |
JP2001504981A (ja) | 2001-04-10 |
DE59703519D1 (de) | 2001-06-13 |
EP0982747A2 (de) | 2000-03-01 |
EP0941549B1 (de) | 2001-05-09 |
EP0941549A1 (de) | 1999-09-15 |
DE59708969D1 (de) | 2003-01-23 |
DE59709207D1 (de) | 2003-02-27 |
ATE231649T1 (de) | 2003-02-15 |
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