• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    In a key (1) for actuating a lock cylinder comprising a Reide (2) and a shaft (3) with a magnetically scannable coding, wherein the magnetically scannable coding comprises at least one coding field (4) having a magnetizable material, there is the key shank (3) at least partially made of a hard plastic, which is offset in the at least one coding field (4) with a ferromagnetic filler.
    公开号:AT514509A1
    申请号:T398/2013
    申请日:2013-05-14
    公开日:2015-01-15
    发明作者:
    申请人:Evva Sicherheitstechnologie；
    IPC主号:
    专利说明:

    The invention relates to a key for operating a locking cylinder comprising a shaft and a shaft with a magnetically scannable coding, wherein the magnetically scannable coding comprises at least one coding field comprising a magnetizable material.
    The invention further relates to a method for the production of such a key.
    Keys of the type mentioned above are used with so-called magnetic locksmiths, which are described in detail e.g. in AT341901 B and AT 357430 B are described. Essential features of these and similar locks are tumblers in the form of magnetic rotors whose rotational position is adjustable in accordance with the magnetic encoding of associated key magnets, the correct rotational position of the magnet rotors being sensed by scanning elements of the lock. In the correct rotational position, the scanning element can be inserted into a recess of the magnet rotor and the sliding movement in turn controls a blocking element which causes the locking of the lock or allows the lock to be turned. The direction of movement of the sensing element may be in any direction and, in practice, is predominantly in the direction of the radius of the magnet rotor, but may also be in the axial direction of the magnet rotor. Such locks may be cylinder locks or sliding locks. In the case of cylinder locks, the magnet rotors are mounted in recesses of the cylinder core and said sensing elements interact on the one hand with the magnet rotors and on the other hand
    Locking elements of the cylinder housing together to the
    Unlock or lock.
    Keys designed to operate such a magnetic lock and having a Reide and a stem with key magnets are typically made of metal. The manufacture of a metal key is very expensive due to the many process steps required to provide the key with each individual magnetic coding. In general, a blank is considered which already has a cross-sectional profile adapted to the shape of the associated keyway of the lock cylinder. In this blank now depressions must be milled, which serve as a result of the inclusion of the key magnets. In conventional designs, the key magnets are formed by so-called magnetic pills, which are small disc-shaped elements made of a ferromagnetic and permanent magnet magnetized material, such as samarium cobalt. The individual magnetic pills can be magnetized differently and with different orientation of the magnetic poles, resulting in a variety of coding variants. Mostly, the keys have at least six key magnets, with at least three key magnets arranged on each side of the key shaft. A disadvantage of the conventional design is that each key magnet must be individually magnetized to ensure the desired magnetic field strength and orientation of polarity.
    The expense of producing the key is even further enhanced when cut-outs are made on the key shank to facilitate mechanical coding in addition to magnetic coding. Control edges are produced by the recesses, which are designed to actuate blocking elements, such as pin tumblers of a shooting cylinder. These recesses are usually formed in the blank by means of a milling tool. In a subsequent step, the reide of the key still needs to be edited to emboss marks, such as code numbers or brand names, or the like. contribute. Finally, a post-processing is required, for example, to avoid sharp edges.
    Although metal keys have been very successful, there are a number of other drawbacks to the costly and expensive manufacture. Metal keys have a high weight and, especially in the case of a nickel-containing material, can cause allergies. Further, the profiling of the keys is subject to certain limitations due to the manufacturing process, so that the number of coding possibilities is small. Furthermore, there is the disadvantage that a colored design of metal keys is limited. The color of the metal can hardly be influenced. A color design is possible only by applying a paint which is naturally subject to high wear. Furthermore, with metal keys, it is difficult to integrate electronic or magnetic encoding elements. Electronic coding elements such as microchips, therefore, can only be integrated into the reid if it is formed of a non-metallic material. Thus, in such a case, the metal shaft and the reide can not be made of the same material, further increasing the cost of manufacturing. With regard to the magnetic coding elements (key magnets), although these can be embedded in the metallic key bit according to the prior art, there is the disadvantage that the metal shaft can adversely affect the magnetic field lines.
    In order to overcome the drawbacks mentioned above in connection with metal keys, it has already been proposed to manufacture a key wholly or partly from a plastic. Reference is made, for example, to EP 305588 A2. In this document, however, it is already pointed out that keys that are made of plastic, do not have sufficient torsional rigidity. In the mentioned document it is therefore proposed to use stiffening elements e.g. metal in the transition area between the Reide and the key shaft.
    The manufacture of such a key therefore requires the handling of two different materials and is therefore expensive.
    The present invention therefore seeks to overcome the above drawbacks associated with metal keys and to simplify the manufacture of the integration of the magnetic coding fields in the key. In this case, keys are to be obtained in preference to which no relevant losses in terms of wear resistance and torsional and bending stiffness must be accepted. In particular, the key should also have an abrasion resistance comprising a number of
    Use cycles so that the key can be used daily for many years.
    To achieve this object, a key of the type mentioned in the introduction is developed such that the key is at least partially made of a hard plastic which is offset in the at least one coding field with a ferromagnetic filler. The key shank can thus be made in one piece, the magnetic
    Coding elements in contrast to the prior art are not as separate, used in the shaft components, but are formed in the plastic of the key shaft. In this case, the ferromagnetic filler present in at least one coding field ensures, after a corresponding magnetization, the formation of a magnetic region which, in combination with possibly further coding fields, represents the magnetic coding. The ferromagnetic filler may preferably be formed from a metal powder, with Fe or SmCo powder being preferred.
    The individual coding fields can be magnetized to different degrees during the encoding, wherein the strength of the magnetic field used in the magnetization of the coding fields influences the magnetic field strength which subsequently emerges from the coding field. In order to achieve a magnetic strength varying among the coding fields even using a uniformly strong magnetic field in the common magnetization of a plurality of coding fields, a preferred embodiment provides that at least a first and a second coding field are provided in which the
    Hard plastic is in each case mixed with a ferromagnetic filler, wherein the absolute amount of the filler in the first coding field is greater than in the second coding field. The absolute amount of ferromagnetic fill material, in addition to the magnetization duration and intensity, determines the strength of the magnetic field emanating from the individual coding fields. The larger the amount of the ferromagnetic filler, the stronger the magnetic field of the coding field.
    The absolute amount of filling material in an encoding field can be determined, for example, by the volume fraction of the filling material in the coding field. The key in this context is preferably formed such that the volume fraction of the filler in the hard plastic in the first coding field is greater than in the second coding field.
    Alternatively, the absolute amount of filler material may also be determined by the material thickness of the coding field. The key in this context is preferably formed such that the material thickness of the filler-displaced rigid plastic is greater in the first coding field than in the second coding field.
    In order to give the key sufficient strength and rigidity, the key shank preferably consists at least partially of a hard plastic of the group of polyimides. Polyimides are
    High-performance plastics whose most important structural feature is the imide group. The polyimides include, for example, polyetherimides and polyamideimides, and it has been shown in experiments that polyetherimides are particularly preferred for use in key production. Polyimides are generally characterized by high mechanical strength, high chemical resistance, and high temperature resistance. Polyetherimide meets typical key requirements such as high strength, low abrasion, and high temperature resistance. Polyetherimides are particularly preferred in the context of the present invention because, in contrast to other polyimides, they can be injection molded. This reduces the manufacturing effort and the associated costs.
    The preparation is particularly simplified, although the Reide consists at least partially of a hard plastic from the group of polyimides. More preferably, the Reide and the key shank are made of the same hard plastic, in particular polyetherimide, with the key shank and the Reide preferably being integrally formed with each other.
    The entire key may thus preferably be manufactured in a single operation, in which context preferably an injection molding process is used. If, as is preferable in a preferred embodiment, the key shank and / or the sheath are made entirely of a hard plastic, the corresponding part or key can be manufactured in one piece by injection molding. To add different portions of the key to form coding fields with a ferromagnetic filler may preferably be a two- or three-dimensional
    Multi-component injection molding process are used.
    The use of a two- or
    Multi-component injection molding can also be advantageous if the Reide is to be coated with a softer material compared to the hard plastic, in particular polyetherimide, in order to improve the feel.
    Due to the preferred use of an injection molding process to manufacture the key, the key shape and, in particular, the shaping of a mechanical profiling (coding) of the key shank, optionally in addition to magnetic encoding, is not subject to any manufacturing constraints. As a result, the mechanical coding variety can be substantially increased, whereby the Nachsperrsicherheit is increased.
    A preferred embodiment provides that the key has at least one magnetic or electronic coding component. The said component may be embedded in the hard plastic of the key shaft or the reide or completely enclosed by the hard plastic. Preferably, the magnetic or electronic coding serving component is a microchip. The microchip may be particularly preferably embodied as an RFID transponder. When the microchip is embedded in or completely enclosed by the key shank material, an embodiment in which the microchip operates passively, that is, particularly advantageous, is particularly advantageous. without a separate power source. In particular, a passive RFID transponder is preferred in this context.
    The integration of the magnetic or electronic coding component into the key is effected in a particularly preferred manufacturing manner in that the said component is inserted into the injection mold prior to injection molding. The said component is overmolded during the injection molding process or embedded in the key body produced by the injection molding.
    Although the preferred hard plastic selected from the group of polyimides, especially polyetherimide, has high strength and high impact strength, the material properties may preferably be improved by fiber-reinforced hard plastic, especially polyetherimide, with carbon and / or glass fibers being preferred for reinforcement. The fiber reinforcement serves in particular to increase the torsional and bending stiffness of the key body. In this context, it is preferably provided that the fiber-reinforced hard plastic, in particular the fiber-reinforced polyether imide has a fiber content of 5-40, preferably 20-35 vol .-% based on the hard plastic.
    In order to maximize the strength-increasing effect of the fibers, a preferred embodiment provides that the fibers are in the same orientation state.
    According to a further aspect of the invention, a method for producing the key according to the invention is proposed. The method provides that the shank and the shank are made of a thermoplastic hard plastic in an injection molding tool by means of a two-component or multi-component injection molding process, wherein a subset of the hard plastic is mixed with a ferromagnetic filler and injected into the injection mold to form at least one coding field of the key shaft, and that the After removal from the injection molding tool, it is fed to a magnetizer in which all coding fields for magnetizing it are exposed to a magnetic field. With the method according to the invention, it becomes possible to magnetize all coding fields of a key together instead of magnetizing each coding field individually. The individual adjustment of the magnetic strength of the coding fields and optionally other encoding parameters is not achieved by individually setting the magnetic field used for the magnetization, but is already achieved in the manufacture of the key by the amount and the distribution of the ferromagnetic filler.
    Preferably, the procedure is such that a plurality of injection-molded keys are exposed to the magnetic field together.
    The invention will be explained in more detail below with reference to exemplary embodiments illustrated diagrammatically in the drawing. 1 shows an injection molded key with a magnetically scannable coding, and FIG. 2 shows an injection mold for producing a key according to FIG.
    Fig.l shows a key with a magnetically scannable coding. The key 1 has a Reide 2 and a key shank 3, wherein the key shank 3 carries on two opposite sides a plurality of permanent magnetic coding fields 4 which carry the magnetic coding. The key 1 is made of fiber-reinforced polyetherimide. In doing so, the key 1 and the coding pads 4 are manufactured in a two-component injection molding. From the first polyetherimide component, in a first step of the injection molding process, the Reide 2 and key shank 3 are made in one piece, and the second ferromagnetic magnetic particle-added polyetherimide component is then injection molded into the magnetic insert.
    In Fig. 2, the injection mold 5 of an unspecified injection molding tool is shown schematically. The injection mold 5 comprises two mold halves defining a cavity 6. The cavity 6 has the shape of the designated 1 in Figure 1 key having a key shank 3 and a Reide 2. The two mold halves may be separated along a plane of separation in the plane of the drawing to expose the interior of mold 5 for removal of the injection molded key. In the mold, disposable slides are provided transversely of the dividing plane, which keep clear the areas of the coding pads during the first step of the injection molding process. In the second step of the injection molding process, the slides are withdrawn from the cavity 6 to thereby expose the apertures 7, which are then filled with the ferromagnetic particle-added polyetherimide component.
    权利要求:
    Claims (14)
    [1]
    Claims 1. A key for operating a lock cylinder comprising a reed and a shaft having a magnetically scannable coding, the magnetically scannable coding comprising at least one coding field comprising magnetizable material, characterized in that the key shaft (3) consists at least partly of a hard plastic which in which at least one coding field (4) is offset with a ferromagnetic filler.
    [2]
    2. A key according to claim 1, characterized in that at least a first and a second coding field (4) are provided in which the hard plastic is each mixed with a ferromagnetic filler, wherein the absolute amount of the filler in the first coding field (4) is greater than in second coding field (4).
    [3]
    3. Key according to claim 2, characterized in that the volume fraction of the filler in the hard plastic in the first coding field (4) is greater than in the second coding field (4).
    [4]
    A key according to claim 2, characterized in that the material thickness of the filler-added hard plastic is greater in the first coding field (4) than in the second coding field (4).
    [5]
    5. Key according to one of claims 1 to 4, characterized in that the Reide (2) consists at least partially of a hard plastic.
    [6]
    6. Key according to one of claims 1 to 5, characterized in that the key shank (3) and the Reide (2) are integrally formed with each other.
    [7]
    A key according to any one of claims 1 to 6, characterized in that the hard plastic is selected from the group of polyimides.
    [8]
    8. Key according to claim 7, characterized in that the hard plastic is polyetherimide.
    [9]
    A key according to any one of claims 1 to 8, characterized in that the hard plastic, in particular polyetherimide, is fiber-reinforced, preference being given to reinforcing carbon and / or glass fibers.
    [10]
    10. A key according to claim 9, characterized in that the fiber-reinforced hard plastic, in particular the fiber-reinforced polyetherimide has a fiber content of 5-40, preferably 20-35 vol .-%.
    [11]
    11. Key according to one of claims 1 to. 10, characterized in that the key (1) is formed as an injection molded part.
    [12]
    A key according to any one of claims 1 to 11, characterized in that the key (1) for forming a key profile has a plurality of longitudinal grooves.
    [13]
    A key according to any one of claims 1 to 12, characterized in that the key (1) comprises a plurality of successive projections and depressions with the respective control edges assigned to the projections, which are used to actuate blocking elements, e.g. Pin tumblers of a lock cylinder are formed.
    [14]
    A method of manufacturing a key according to any one of claims 1 to 13, adapted to actuate a locking cylinder and having a shaft and a shaft with magnetically scannable coding, characterized in that the shaft and the shaft are made of a thermoplastic material in an injection molding tool by means of a two or more component injection molding process Hard plastic, wherein a subset of the hard plastic is added with a ferromagnetic filler and injected into the injection mold to form at least one coding field of the key shaft, and that the key, after removal from the injection mold, is fed to a magnetizing device in which all the coding fields for magnetizing it are exposed to a magnetic field.
    类似技术:
    公开号 | 公开日 | 专利标题
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    EP2803464A2|2014-11-19|Method for manufacturing a key and device for performing the method
    DE19500138A1|1996-07-11|Process for the production of relatively thick-walled brush bodies, in particular toothbrushes made of thermoplastic material
    EP2314804A1|2011-04-27|Gripping unit for an actuation device
    AT515619B1|2017-02-15|Method for producing a key and an apparatus for carrying out the method
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    AT516238A2|2016-03-15|Locking cylinder and combination of a key with the lock cylinder
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    DE202013009775U1|2014-02-06|Universal key
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    DE102017205246A1|2018-10-04|Display element, method for producing a display element and use of a display element and vehicle with a display element
    EP3041654B1|2018-08-08|Method for producing an insert for an injection molded component, insert for an injection molded component and injection molded component
    DE10010501C2|2002-10-10|Integrated lock / handle arrangement
    DE102017201572A1|2018-08-02|Injection molding tool for producing at least two differently shaped injection-molded workpieces, method for producing at least two differently shaped injection-molded workpieces and injection-molded workpiece
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    同族专利:
    公开号 | 公开日
    EP2803792A2|2014-11-19|
    AT514509B1|2015-08-15|
    EP2803792B1|2017-11-22|
    EP2803792A3|2016-07-06|
    ES2656669T3|2018-02-28|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    AT371532B|1978-12-15|1983-07-11|Grundmann Gmbh Geb|FLAT KEY|
    FR2733781A1|1995-05-02|1996-11-08|Ma Bunn Sieng|Magnetic key for door lock|
    JP2010236194A|2009-03-30|2010-10-21|Denso Corp|Portable machine of electric key system, and emergency key|DE102015205213A1|2015-03-23|2016-09-29|Bks Gmbh|Profile cylinder key|AT341901B|1975-07-03|1978-03-10|Evva Werke|CONTROL DEVICE, IN PARTICULAR LOCK|
    AT357430B|1978-06-29|1980-07-10|Evva Werke|CONTROL DEVICE, IN PARTICULAR LOCK|
    DE3786402T2|1987-09-03|1993-11-04|Mitsubishi Corp|REINFORCED PLASTIC KEY.|CN104453382B|2014-11-27|2016-08-24|陈以列|A kind of lockset|
    CN104481274B|2014-11-27|2016-09-07|薛宜|A kind of lockset|
    DE102015007117A1|2015-01-15|2016-07-21|Assa Abloy Sicherheitstechnik Gmbh|Magnet arrangement for use in a lock and key system|
    法律状态:
    2022-01-15| MM01| Lapse because of not paying annual fees|Effective date: 20210514 |
    优先权:
    申请号 | 申请日 | 专利标题
    ATA398/2013A|AT514509B1|2013-05-14|2013-05-14|Key for actuating a lock cylinder and method for producing the key|ATA398/2013A| AT514509B1|2013-05-14|2013-05-14|Key for actuating a lock cylinder and method for producing the key|
    EP14450024.6A| EP2803792B1|2013-05-14|2014-05-08|Key for actuating of a locking cylinder and method for producing the key|
    ES14450024.6T| ES2656669T3|2013-05-14|2014-05-08|Key to actuate a closing bulb and key manufacturing procedure|
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