WO2007093268A1 - Système de commutateur de transfert à clé et procédés associés - Google Patents

Système de commutateur de transfert à clé et procédés associés Download PDF

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Publication number
WO2007093268A1
WO2007093268A1 PCT/EP2007/000482 EP2007000482W WO2007093268A1 WO 2007093268 A1 WO2007093268 A1 WO 2007093268A1 EP 2007000482 W EP2007000482 W EP 2007000482W WO 2007093268 A1 WO2007093268 A1 WO 2007093268A1
Authority
WO
WIPO (PCT)
Prior art keywords
key
actuator
module
switch system
transfer switch
Prior art date
Application number
PCT/EP2007/000482
Other languages
German (de)
English (en)
Inventor
Frank Arthur Aartsen
Original Assignee
Dold Vertriebsgesellschaft Mbh
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
Application filed by Dold Vertriebsgesellschaft Mbh filed Critical Dold Vertriebsgesellschaft Mbh
Priority to EP07702910A priority Critical patent/EP1984932B1/fr
Priority to DE502007003140T priority patent/DE502007003140D1/de
Publication of WO2007093268A1 publication Critical patent/WO2007093268A1/fr

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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
    • 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
    • H01H19/54—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 the operating part having at least five or an unspecified number of operative positions
    • H01H19/60—Angularly-movable actuating part carrying no contacts
    • H01H19/63—Contacts actuated by axial cams
    • 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
    • H01H19/64—Encased switches adapted for ganged operation when assembled in a line with identical switches, e.g. stacked switches
    • 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
    • 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
    • H01H27/007—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 switch being lockable by remote control, e.g. by electromagnet

Definitions

  • the invention relates to a key transfer switch system with a safety device having a switch device with at least one electrical or pneumatic or mechanical or hydraulic switching element and an actuator with an associated actuator, wherein a transmission element between the actuator and the switch device is provided, on the one hand with the Switching element and on the other hand can be coupled with the actuator.
  • a safety device for at least one separating protective device or locking device, or a device for condition monitoring of a protective device of a machine or system, in particular key transfer systems, safety switches or derived mixed forms or the like, for monitoring the safe state of machinery, equipment or the like.
  • a device for switching an electrical connection as a function of the state of a protective device is known as part of a safety switch.
  • This device has a switch housing and a switch head with one or two insertion openings for an actuator.
  • Switch and key transfer systems are used in industrial production as safety devices. They serve to protect people who operate dangerous machines.
  • a key advantage of key transfer systems is the low wiring costs and the good resistance to environmental influences. Due to the nature of the structure, a specific sequence of actions can be enforced in key transfer systems, which is not possible in this form with safety switches.
  • safety switches as described in the product standard DIN-EN1088, have the disadvantage of not being sufficiently mechanically stable. Malfunctions are often caused by water penetration, damage by misalignment and normal wear. In the previously known systems, each switch must be wired and, depending on the safety category, evaluated separately. Securing with safety switches is therefore complicated and expensive.
  • key transfer systems react with a considerable time delay.
  • Another disadvantage of key transfer systems is the increased operator effort.
  • Object of the present invention is to provide a key transfer switch system of the type mentioned above, which has a high reliability, easily adaptable to different requirements and thereby also expandable.
  • the structural design of the key transfer switch system should be simple and feasible using fewer parts.
  • the transmission element between the actuator and the switch device is essentially formed by a transmission shaft as the main axis with an operating range and with a switching range or end whose operating range or end to a device is connected for converting a translational movement of the actuator in a rotational movement of the transmission shaft and that the transmission shaft is forcibly driven in both directions of rotation.
  • a transmission shaft as the main axis has among others the
  • the device has an insertion point for insertion and removal of the actuator and for converting the translational movement of the actuator in a rotational movement of the transmission shaft driven by the actuator in a male or female movement, preferably a cam mechanism with at least one cam or cam, which has a coupled via an engaging member with the transmission shaft drive curve.
  • This constructive design reduces wear and thus contributes to the extension of the service life.
  • the cam gear has at least one cam with an open-edge actuating opening for engaging the actuator and a slot-shaped drive curve for the connected to the transmission shaft engaging member.
  • a force-actuated drive transmission is formed between the actuator and the transmission shaft.
  • cam disks which are preferably arranged in parallel and are rotatable by an actuator, are provided, which are drivable simultaneously by an actuator and coupled to the transmission shaft via separate engagement members.
  • cams 20a and 20b increase safety through mechanical redundancy. If a cam disk fails, the basic function is taken over by the second cam disk.
  • a locking device for locking the cam or the like gear element is provided with the actuator removed.
  • a rotary movement without inserted operating element (actuator or key) is prevented.
  • the main axis is blocked to prevent external axial force from causing unwanted axial rotation of the main axis.
  • the switch means and the actuator and optionally further actuators or similar functional devices are designed as modules and each have connections for releasably connecting with each other and each in mounting position aligned and via coupling elements of a clutch releasably connectable to each other partial transmission waves ,
  • a plurality of actuator modules may be provided in optionally different embodiments, for example key modules with a key as an actuator and / or padlock modules with a non-removable key as an actuator.
  • actuator modules in different embodiments and switch modules and locking modules can be provided with at least one actuator and with a locking system.
  • the actuator module is designed as an intermediate module with transmission shaft accessible on both sides on two opposite sides of the module and coupling elements located there, as well as with connections for further modules.
  • the functions of the individual modules are independent of those of the other modules.
  • the overall function is only defined by the assembly into a system.
  • the system according to the invention can be adapted to the various application-specific requirements. Best- The present systems can be modified in a simple manner.
  • this system Due to its modular design, this system is very flexible and can be optimally adapted to the respective requirements, whereby many different combination options exist. By replacing, regrouping or adding further modules, this system can also be changed later.
  • the respective transmission shaft extends from one connection side to the opposite one and has coupling elements at both ends.
  • connections of the modules are designed as special bayonet locks.
  • the bayonet lock on the modules each bayonet rings with bayonet grooves and a separate bayonet ring with inside projecting bayonet cams.
  • the terminals of the modules for mounting in different rotational positions of the modules preferably formed at least in four by about 90 ° to each other rotated mounting positions.
  • the modules can be extended by approx. 90 °; about 180 ° or about 270 ° are rotated against each other.
  • the outer surfaces of the modules and the bayonet ring are parallel to each other.
  • the switch head and the switch housing are connected with screws. This system greatly limits variability and is therefore not customer friendly. It does not allow a variable structure of a system and prevents subsequent expansion by further modules.
  • the actuating device can be designed as a key module, wherein the actuator is a socket wrench.
  • a key as an actuator provides increased safety in order to force certain courses of action when accessing dangerous machines and systems.
  • socket wrench has the advantage over the key principle that complicated, subject to relatively high wear mechanisms such as plunger, bolts, washers or pins, which in turn trigger other functions, can be avoided.
  • socket wrenches have a lower susceptibility to contamination.
  • the key for the key module preferably has an actuating section, a coding section and a handle section.
  • This key can be inserted in a linear movement with its operating section in the lock and with The key is checked in the subsequent coding section or coding mechanism. If it is a wrong key, the coding system blocks the key.
  • This system is simple, yet very stable, not sensitive to contamination and very safe against external manipulation.
  • the key shape also offers ergonomic benefits.
  • the coupling elements of the approximately aligned transmission shafts of the individual modules are each part of a dog clutch, wherein the coupling elements have axially projecting, interlocking claws.
  • Claw clutches can be used to unlock or block the functions of adjacent modules.
  • a particular embodiment of the dog clutch provides that the claws of the coupling elements are formed segment-shaped with radially oriented side edges and that the circumferential extent of all segments of a coupling element together is approximately equal (switch module) or smaller than 180 °.
  • the actuator is inserted into the actuator module.
  • the main axis rotates in the manner described, thereby releasing the function of the underlying key module.
  • the main axis of the key module is not yet moved because of the free space between the coupling segments. Only after the actuator is in its end position, the key can be plugged into the key module.
  • the main axis of the key module is also rotated counterclockwise by, for example, 30 °. Since there is no clearance between the jaws of the key module and the switch module, this rotation is used in the switch module to close the electrical circuits.
  • the key can not be inserted into the key module if the door is not yet closed or if the actuator is not yet plugged into the actuator module.
  • the claws of the coupling elements extend in the radial direction over an outer portion of the end face of the transmission shaft and are formed approximately frusto-conical.
  • the middle area remains free.
  • FIG. 1 shows a functional unit with an actuator module, a key module and a switch module
  • FIG. 4 shows a perspective view of the functional parts belonging to a device for converting a translatory movement of an actuator into a rotational movement of a transmission shaft
  • FIG. 8 shows different views or functional layers of the device shown in FIG. 4, FIG.
  • FIG. 10 is a perspective view of a module base housing, Fig. 1 1 and
  • FIG. 13 is a perspective view of an actuator
  • FIG. 14 is a perspective view of a connection side of a module with a bayonet ring
  • FIG. 15 is a perspective view of a bayonet ring
  • FIG. 16 shows a perspective view of a connection side of a module to be connected to the module according to FIG. 14 with a bayonet rim
  • 19 shows a functional unit with an actuator module, an intermediate actuator module, a padlock module, a key module and an end module,
  • FIG. 23 shows different side views of the main axis shown in FIG. 20, FIG.
  • 25 shows the functional parts of two modules coupled to each other via a dog clutch
  • 26 is a sectional view in the region of a dog clutch according to the section line CC in Fig.25,
  • FIG. 27 is a view similar to FIG. 1, but with the actuator and key removed; FIG.
  • FIG. 30 is a perspective view of a locking element
  • FIG. 31 is a sectional view of a portion of a switch and tumbler module in the unlocked state corresponding to the section line D-D in Fig. 41,
  • FIG. 32 is an end view of that shown in FIG. 28.
  • FIG. 33 is a sectional view of a portion of a switch and locking module in locked position corresponding to the section line G-G in Fig. 44,
  • 35 shows perspective views of a switch housing with a view of the connection end with bayonet rim
  • FIG. 36 is a sectional view of the switch and locking module according to the section line L-L in Fig.28,
  • FIG. 37 and Fig. 42 and FIG. 43 shows different side views of the switch and locking module
  • FIG. 38 is a cross-sectional view of the switch and restraint module according to the section line H-H in FIG. 37 in the unlocked state, FIG.
  • FIG. 39 is a cross-sectional view of the switch and locking module according to the section line A-A in Fig. 37,
  • FIG. 40 is a cross-sectional view of the switch and restraint module according to the section line H-H in FIG. 37 in the locked state, FIG.
  • Fig. 45 is a cross-sectional view similar to Fig. 40, but here with a lock in a second
  • FIG. 46 is a perspective view corresponding to FIG. 45, but perspective here, FIG.
  • 50 is a perspective view of a coding
  • 51 is a partial sectional view of a key housing with a coding and a key
  • FIG. 53 shows a further partial sectional view of a key housing with a coding element and a key corresponding to the detail marked X in FIG. 54, FIG.
  • FIG. 55 is a side view of the functional module shown in FIG. 54; FIG.
  • FIG. 56 is a plan view of the functional module shown in FIG. 55;
  • Fig. 58 is a perspective view of a key housing with partially inserted key
  • FIG. 59 is an enlarged view of FIG. 58
  • a functional unit 1 shown in FIG. 1 may be part of a safety device for at least one separating protective device or locking device, or one Device for monitoring the condition of a protective device of a machine or plant.
  • a key transfer system or safety switch or derived hybrids It thus serves to monitor the safe state of machines, installations or the like and has in the embodiment shown in FIG. 1, from top to bottom, an actuator module 10, a key module 15 and a switch module 63.
  • To the actuator module 10 includes an actuator 12 and the key module 15 a key 17.
  • the actuator 12 and the key 17 are inserted into corresponding openings of the two modules.
  • the actuator 12 is connected, for example, with a door, not shown here, to be monitored.
  • the same functional unit 1 is also shown in Fig. 27, wherein there the actuator 12 is not inserted into the actuator module 10, that is, the door to be monitored is open.
  • the key 17 is also removed.
  • an actuator module 10 can be removed in particular from FIGS. 4 to 13.
  • the actuator module 10 has a module base housing 25 (FIGS. 9 and 10) in which a transmission shaft is mounted as the main axis 26.
  • the main shaft 26 has an operation range and a shift range or a shift end whose operating range or end is connected to a device 2 for translating the actuator 12 into a rotational movement of the transfer shaft (main axis 26), the transfer shaft being in both rotational directions forcibly driven.
  • the device 2 has an insertion point with an insertion opening 19 (Fig.19) for the insertion and removal of the Actuator 12 and for converting the translational movement of the actuator in a rotational movement of the transmission shaft one of the actuator 12 in a male or removable movement drivable transmission, preferably a cam mechanism 3 with two cams 20 a, 20 b, which has a formed by arms 28 engaging member with the transmission shaft 26 has coupled drive curves 29a, 29b.
  • the cams 20a, 20b (FIGS. 4 to 8 and 10 to 12) are set into rotary motion by the actuator 12 (FIG. 13).
  • the cams have actuator claws 21 for a horizontally inserted actuator 12 and the actuator claws 22 for a vertically inserted actuator 12a.
  • the actuator 12 (also visible in Figure 4) engages with its two actuator cam 23 in the respective actuator jaws 21 and 22 and offset the two cams 20a and 20b in a rotational movement about the axis 24.
  • the axis 24 is mounted in the module base housing 25 , Between the two cams 20a and 20b, the main axis 26 in the module base housing 25 and module cover 27 is mounted.
  • the main axis 26 engages in the two cams 20a and 20b.
  • the main axis 26 is also set in an axial rotational movement via the two arms 28.
  • the rotational movement of the main axis 26 is limited to approximately 30 °.
  • cams 20a and 20b increase safety through mechanical redundancy. If a cam disk fails, the basic function is taken over by the second cam disk.
  • the structural design reduces wear and thus contributes to extending the service life.
  • the system according to the invention also offers ergonomic advantages, since, for example, in the case of a key module 15, the key 17 can simply be pulled or pushed due to the structure described.
  • Commercially available solutions work here with one Rotation key system. In these cases, a key must be inserted or pulled and rotated.
  • cams 20a and 20b can only be moved with approved controls (e.g., actuator 12).
  • the solution according to the invention provides for a locking of the cams.
  • a compression spring is installed on the axle 24, in each case between the module base housing 25 and the cam disk 20a or 20b. In the unactuated state Fig.62 these springs push the cams 20a and 20b towards the main axis.
  • the locking pin 33 (Fig.20 / 22) engages in the locking opening 34 (Fig.5, 7, 11, 12) of the respective cam. In this way, the cams 20a and 20b block the rotational movement of the main axis 26th
  • the actuator 12 is moved in the direction of the cams 20a and 20b. After the actuator 12 has contacted the cams 20a and 20b, they slide along the beveled surfaces of the actuator 12 on the axle 24 against the spring pressure
  • the lock 37 forms a redundant locking system.
  • each module has an upper bayonet 38 and a lower bayonet 39.
  • a lower bayonet ring 39 and an upper bayonet rim 38 are pulled together and held together.
  • the bayonet closure 5 is i.a. shown in Figures 14 to 18.
  • the described bayonet lock 5 essentially consists of three parts: the upper bayonet rim 38, the bayonet ring 13 and the lower bayonet rim 39.
  • a tapered, rectangular recess 40 is included in the upper bayonet 38 .
  • the also tapered, rectangular increase 41 of the lower bayonet 39 fits into the recess 40 without play.
  • the main axes 26 are mounted in the bayonet rings 38 and 39.
  • the grooves 42 and 43 are included in the round bayonet rings 38 and 39.
  • the bayonet grooves 42 and 43 have an insertion 44 and 45, a slanted groove portion 46 and 47 and a horizontal locking portion 48 and
  • the bayonet ring 13 is attached to the lower bayonet rim 39 so that the bayonet cams 51 dip into the corresponding bayonet grooves 43. In this state, the bayonet ring 13 is rotated by approximately 45 ° relative to the associated module 52. When placing the second module 53 with the upper bayonet rim 38, the rectangular elevation 41 dips into the matching, rectangular recess 40. At the same time, if the bayonet cams 50 into the grooves 42 inside. With a rotational movement of the bayonet ring 13 by about 45 °, the bayonet cams slide 50 and 51 along the respective Nutenphil along in its final position. In this case, the two modules 53 and 52 are contracted.
  • An inserted O-ring 54 in the O-ring groove 55 of the lower bayonet 39 ensures a certain bias. Due to the rectangular shape 41 and 40, the modules 53 and 52 by about 0 °; about 90 °; about 180 ° or about 270 ° are rotated against each other. In the assembled state, the outer surfaces of the modules 53 and 52 and the bayonet ring 13 are parallel to each other. The bayonet ring 13 can always be mounted so that its mounting holes 56 can be used to mount the overall structure on a mounting surface (FIG. 19).
  • coupling elements are provided on the approximately aligned transmission shafts of the individual modules, which are each part of a dog clutch 4, wherein the coupling elements axially projecting, interlocking claws 59a, 59b have.
  • the claws of the coupling elements are segment-shaped with radially oriented side edges, wherein the circumferential extent of all segments of a coupling element is equal to or less than 180 ° (see Fig .. 20 to 23).
  • this rotational clearance between the individual, intermeshing coupling elements is present or in a modified embodiment, the dog clutch the Transfer rotational movement backlash and thus trigger other functions. (See also Fig. 2 and 3).
  • the main axis 26 is rotatably mounted in the module base housing 25 and in the module cover 27.
  • the rotational movement is limited auground the described structure to about 30 °.
  • the axial movement of the main axis 26 is prevented by shoulders 58.
  • the main axis 26 is provided with four claws 59a, 59b.
  • the upper jaws 59a are offset from the lower jaws 59b by approximately 30 °.
  • the claws 59a and 59b have an angle a of about 30 ° (Fig.23).
  • the claws 59b and 59a of the main axes involved enter the respective intermediate spaces. There are always two surfaces of the claws 59b and 59a to each other (Pos.57 in Fig.26).
  • an actuator rotates the main axis 26 in the manner already described, counterclockwise about 30 °. This rotational movement is possible because on one side between the two jaws 59a and 59b, a clearance 61 of about 30 ° is present.
  • the functional unit 1 has an actuator module 10, a key module 15 and a switch module 63.
  • the actuator 12 is not inserted into the actuator module 10, i. the door to be monitored is open.
  • the key 17 is also removed.
  • the switch module 63 (FIG. 28), the safety switches are opened in this state. Now the door to be monitored is closed, the actuator 12 is inserted into the actuator module 10. Within the actuator module 10, the main axis rotates in the described manner, thereby releasing the function of the key module 15 below. The main axis of the key module is not moved yet. Only after the actuator 12 is in its end position, the key 17 can be inserted into the key module 15. By inserting the key 17 into the key module 15, the main axis of the key module 15 is also rotated by approximately 30 ° in the counterclockwise direction. Since the jaws 59a of the switch module 63 have a width of about 60 °, this rotational movement is used in the switch module 63 for closing the electrical circuits. A deviating sequence of actions is not possible.
  • the key 17 can not be inserted into the key module 15 when the door or actuator 12 is not yet plugged into the actuator module 10.
  • switching elements which may be part of safety circuits. In case of an unsafe condition, e.g. a protective door has been opened, these switching elements are also opened, thus interrupting the safety circuits.
  • Locking modules are in addition to the switching elements still equipped with a locking system. This locking system prevents inadvertent reconnection of the safety circuit. The position of the locking system is monitored separately.
  • the switch and locking modules are provided with a bayonet ring 39.
  • the switching axis 64 (Fig.29) is guided.
  • the claws 59a of the switching axis 64 have a width of about 60 ° (Fig.32). Therefore, there is no freewheel between the jaws of a switch or locking module 63 and the claws of a module 15 mounted above (FIG. 27). Therefore, a rotational movement of the main axis (eg of the key module 15) is converted directly into a rotational movement of the main axis of the switching or tumbler module 63.
  • the switching axis 64 is provided with two switching arms 65.
  • the switching arms 65 act via a switching spring 66 directly on the shift lever 67 of electrical switching elements 68, which are opened or closed depending on the rotational movement.
  • the electrical switching elements 68 are soldered to a printed circuit board 69 (Fig.28, 47).
  • the electrical switching elements are actuated via a plunger mechanism.
  • this requires a, to the motherboard, vertical arrangement of the electrical switching elements, i. a second circuit board is required.
  • a second circuit board is required.
  • the vertical circuit board assembly is associated with high production costs and therefore very expensive.
  • the system according to the invention is advantageous because it has only one printed circuit board 69, thus eliminating complex assembly work and due to the simpler construction, the possible sources of error are reduced to a minimum.
  • the switching axis 64 is provided with two switching arms 65. Both switching arms can be used to operate electrical switching elements.
  • the electrical switching elements 70 and 71 may be included.
  • the arrangement of two switching arms 65 allows different switching states of the electrical switching elements 70 and 71.
  • the electrical switching elements 70 are not actuated, while the electrical switching element 71 is shown actuated.
  • the switch module 63 is connected to an actuator module 10.
  • the actuator 12 is mounted on a hood.
  • the actuator When opening the hood, the actuator is moved out of the actuator module 10.
  • the main axis of the actuator module (as described above) rotates by approx. 30 °. This rotational movement is implemented in the switching module in a switching movement and the electrical switching elements are closed or opened. The switching elements in turn close or open certain circuits and is thus linked to other functions.
  • switch or locking modules consist of the two parts housing and head element.
  • the head element is usually fastened by screwing on the housing element.
  • the electrical switching elements 70 and 71 are in the manner already described on the switching arms 65 and over Switching axis 64 of the main axis of the module mounted above it (eg, a key module 15 as shown in Figure 7) actuated.
  • the tearing of the key module 15 is electrically detected and registered in connected safety circuits and evaluated.
  • this object is achieved by means of a switch spring 66 (Fig.36).
  • the switching axis 64 is moved by the switch spring 66 via the switching arms 65 into a defined starting position.
  • the electrical switching elements 70 and 71 assume a predetermined switching position. This switching position can be evaluated electrically.
  • the safety circuits connected to the electrical switching elements 70 and 71 provide with their other functions for the electrical safety and the fault message.
  • the disadvantage here is the complicated mechanical structure, which leads to high assembly costs and high susceptibility to interference, and causes a relatively high wear.
  • a door bias may e.g. caused by delay or by inserted rubber seals.
  • the locking system according to the invention is constructed as follows:
  • the switching axis 64 (Fig.33) is freely rotatably mounted in the bore 72.
  • the switching axis 64 is provided with two transverse bores 73 and a longitudinal bore 72. In the two transverse bores 73 a locking ball 74 is guided in each case. In the assembled state, the switching axis 64 is inserted into the bore 75.
  • the fixation of the switching axis 64 in the switch housing 76 takes over the locking element 77 (Fig.30).
  • the locking member 77 is provided with the two grooves 78. It is firmly screwed to the switch housing 76.
  • In the longitudinal bore 72 of the switching axis 94 dips an axially movable locking ram 79 a.
  • the two locking balls 74 are moved from an inner position 2 (FIG. 31) to an outer position 1 (FIG.
  • the locking balls 74 strike the locking element inner wall 80 (FIGS. 30, 33) or the grooves 78. If the locking balls 74 strike the locking element inner wall 80, the locking ram 79 can not engage in dive into its final position - the system can not be locked in this case.
  • a module e.g., a key module 15
  • the locking ram 79 may e.g. be actuated by a solenoid 81.
  • the position of the lifting rod 82 of the lifting magnet 81 can be monitored separately electrically.
  • both the position of the switching axis 64 and the switching state of the solenoid 81 can be monitored and evaluated in a safety circuit.
  • the locking system can be designed according to the working or the closed-circuit principle.
  • the locking plunger 79 In the quiescent current principle, the locking plunger 79 is in position 1 (Fig.33). The switching axis 64 is locked and can not be rotated. To unlock the solenoid 81 must be energized. In this case, the locking plunger 79 is retracted to the position 2 (Fig.31). In this state, the lock is released and the switching axis 64 can be rotated. This also makes the attached module (e.g., the key module 15) functional.
  • the attached module e.g., the key module 15
  • the working current principle is the inverse of the quiescent current principle.
  • the energization of the solenoid 81 is required for the lock.
  • the Solenoid 81 in its end position and the locking plunger 79 is in position 2 (Fig.31).
  • the quiescent current principle is predominantly used. Even in the event of a power failure, the system remains locked, preventing dangerous conditions. The high thermal load of the solenoid is also reduced by the quiescent current principle.
  • the key transfer systems known today work according to the key principle. A key is put in a lock. Only when the right key is used can it be completely inserted into the lock. With the subsequent rotary movement of the key, plungers, bolts, washers or pins are moved via complicated mechanisms, which in turn trigger further functions.
  • a disadvantage of these systems is the relatively high wear and the high susceptibility to contamination. The complex mechanics leads to further disadvantages in the production and the susceptibility to failure.
  • the key module described here works according to the socket key principle. While the key is in a linear movement is inserted into the lock, the key is checked via a coding mechanism. If it is a wrong key, the coding system blocks the key. This system is simple, yet very stable, not sensitive to contamination and very safe against external manipulation. The key shape also offers ergonomic benefits. The mode of operation of the key module is described in more detail with reference to FIGS. 48 to 59.
  • the key 17 consists essentially of three areas.
  • the area 84 corresponds in its shape and function of an actuator Fig.13.
  • In section 85 are the Kodier vom 86.
  • the rear key area 87 serves as a gripping surface.
  • the coding element 89 is rotatably mounted about the axis 90.
  • the coding element 89 is brought into the preferred position (Fig.51).
  • the key face 92 abuts against the cam 93 of the coding element 89.
  • the coding element 89 is rotated about the axis 90 against the spring force.
  • the coding surfaces 86 of the coding element 89 dip into the corresponding coding surfaces 86 of the key 17.
  • the cam 94 of the coding element 89 engages in the recess 95 of the key 17.
  • the key can be inserted into its end position. Only after the coding surfaces 86 and 96 completely engage with each other, the main axis 26 is moved in the manner described. When pulling out the key 17, first the coding element 89 is moved by the cam 94. The additionally acting spring force brings the coding element 89 finally back to the starting position Fig.51. In the case of a key with incorrect coding, the coding surfaces 96 can not completely dip into the coding surfaces 86 of the key 17. It comes to the clamping of the key 17 and coding element 89, the key is locked in its linear movement.
  • Figure 19 shows an example of an assembled functional unit 1a.
  • the following modules and parts can be seen here: an actuator module 10, the associated actuator 12 and an intermediate actuator module 11, the associated actuator 12b, bayonet rings 13, a padlock module 14, a key module 15, associated key 17 and an end module 16.
  • the actuator module 10 is provided with the mounting holes 18a.
  • the bayonet rings 13 are equipped with the mounting holes 18 and end module 16 with the mounting holes 18 b.
  • the complete unit 1a is mounted eg on a door jamb. Wherein the actuator 12, or 12 a or 12 b is attached to the door so that the actuator can be inserted into the insertion opening 19.
  • Example of possible use For maintenance purposes, access to a tumble mixing system is required. In this case, the passage can be secured by a safety switch.
  • the tumble mixing cover could be secured via a mechanical key transfer system.
  • the combination of a safety switch and a key module on the access door provides a key required to open the tumble mixing cover. Only after this key has been plugged into the corresponding key module, you get a second key, the one consumes. In order to put the machine back into operation it is absolutely necessary to carry out the process in reverse order.
  • a padlock module could also be integrated. Systems of this type are used, inter alia, to monitor and / or protect access to machinery and equipment, to enforce certain sequences of actions in the operation of (main) switches, earthing switches, valves and others. Advantages: Due to its modular design, this system is very flexible and can be optimally adapted to the respective requirements.
  • this system can also be changed later.
  • the structure and the choice of materials guarantee a very high stability. Due to the redundant design of the essential parts, the wear, compared to the previously known competition systems, reduced by about 75% and significantly increases the level of security.
  • the design described here allows the monitoring of multiple accesses with only one system.
  • This product group also includes personal protective measures in the form of padlock modules which can be secured against actuation by means of a padlock.
  • the system according to the invention is made up of several separate modules, all of which can be interconnected by means of a uniform bayonet fitting.
  • the functions of the individual modules are independent of those of the other modules.
  • the Overall function is only defined by the assembly to a system.
  • the system according to the invention can be adapted to the various application-specific requirements.
  • Existing systems can be modified in a simple manner.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Lock And Its Accessories (AREA)

Abstract

L'invention concerne un système de commutateur de transfert à clé qui présente un dispositif de sécurité comprenant un dispositif commutateur pourvu d'au moins un élément de commutation et un dispositif d'actionnement pourvu d'un actionneur associé. Un élément de transmission est placé entre le dispositif d'actionnement et le dispositif commutateur, cet élément pouvant être couplé d'une part à l'élément de commutation et d'autre part à l'actionneur (12). Ledit élément de transmission est constitué essentiellement d'un arbre de transmission se présentant sous la forme d'un axe principal (26) comprenant une région ou une extrémité d'actionnement et une région ou une extrémité de commutation. Ladite région ou extrémité d'actionnement est raccordée à un dispositif (2) servant à convertir un mouvement de translation de l'actionneur (12) en un mouvement de rotation de l'axe principal (26), ledit axe principal (26) étant entraîné de manière forcée dans les deux sens de rotation.
PCT/EP2007/000482 2006-02-14 2007-01-20 Système de commutateur de transfert à clé et procédés associés WO2007093268A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP07702910A EP1984932B1 (fr) 2006-02-14 2007-01-20 Systeme de commutateur de transfert a cle et procedes associes
DE502007003140T DE502007003140D1 (de) 2006-02-14 2007-01-20 Schlüsseltransferschalter system und methode

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200610006949 DE102006006949B4 (de) 2006-02-14 2006-02-14 Sicherheitssystem zum Überwachen einer Schutzeinrichtung
DE102006006949.8 2006-02-14

Publications (1)

Publication Number Publication Date
WO2007093268A1 true WO2007093268A1 (fr) 2007-08-23

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Country Status (3)

Country Link
EP (1) EP1984932B1 (fr)
DE (2) DE102006006949B4 (fr)
WO (1) WO2007093268A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10332703B2 (en) 2015-03-06 2019-06-25 E. Dold & Söhne KG Safety switch assembly
US10415751B2 (en) 2014-09-18 2019-09-17 Wobben Properties Gmbh Wind turbine and method for controlling an access point in a closed area of a wind turbine

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012018080A1 (de) 2012-09-13 2014-03-13 Dold Vertriebsgesellschaft Mbh Elektromechanische Zuhaltung mit Überlastschutz
DE102013010776A1 (de) 2013-06-28 2014-12-31 Dold Vertriebsgesellschaft Mbh Verriegelungsanordnung für ein Leistungstrennsystem
DE102015002845B4 (de) * 2015-03-06 2018-02-22 E. Dold & Söhne KG Sicherheitsschalteranordnung
ITUA20163940A1 (it) * 2016-05-30 2017-11-30 Pizzato Elettrica Srl Interruttore di sicurezza per il controllo di accessi
WO2021165344A1 (fr) 2020-02-19 2021-08-26 E. Dold & Söhne Gmbh & Co. Kg Dispositif d'actionnement à libération rapide pour verrous à fonction de retenue
DE102020118572A1 (de) 2020-07-14 2022-01-20 Unotech Gmbh Ballenpresse mit einem Schaltschrank und einer Zusatzstromversorgung
DE102023100913A1 (de) 2023-01-16 2024-07-18 E. Dold & Söhne Gmbh & Co. Kg Sicherheitsschließeinrichtung

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DE29722021U1 (de) * 1997-12-12 1998-01-29 Bernstein Hans Spezialfabrik Sicherheitsschalter
DE19957213C1 (de) * 1999-11-27 2001-08-02 Euchner Gmbh & Co Vorrichtung zum Schalten einer elektrischen Verbindung in Abhängigkeit des Zustandes einer Schutzeinrichtung, insbesondere Sicherheitsschalter

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DE29515529U1 (de) * 1995-09-29 1996-01-11 Elan Schaltelemente GmbH, 35435 Wettenberg Verriegelungseinrichtung

Patent Citations (2)

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Publication number Priority date Publication date Assignee Title
DE29722021U1 (de) * 1997-12-12 1998-01-29 Bernstein Hans Spezialfabrik Sicherheitsschalter
DE19957213C1 (de) * 1999-11-27 2001-08-02 Euchner Gmbh & Co Vorrichtung zum Schalten einer elektrischen Verbindung in Abhängigkeit des Zustandes einer Schutzeinrichtung, insbesondere Sicherheitsschalter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10415751B2 (en) 2014-09-18 2019-09-17 Wobben Properties Gmbh Wind turbine and method for controlling an access point in a closed area of a wind turbine
US10332703B2 (en) 2015-03-06 2019-06-25 E. Dold & Söhne KG Safety switch assembly

Also Published As

Publication number Publication date
EP1984932A1 (fr) 2008-10-29
DE102006006949A1 (de) 2007-08-23
EP1984932B1 (fr) 2010-03-17
DE502007003140D1 (de) 2010-04-29
DE102006006949B4 (de) 2010-09-09

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