EP2283193A1 - Composant cylindre de serrure pour un vehicule automobile - Google Patents

Composant cylindre de serrure pour un vehicule automobile

Info

Publication number
EP2283193A1
EP2283193A1 EP09741782A EP09741782A EP2283193A1 EP 2283193 A1 EP2283193 A1 EP 2283193A1 EP 09741782 A EP09741782 A EP 09741782A EP 09741782 A EP09741782 A EP 09741782A EP 2283193 A1 EP2283193 A1 EP 2283193A1
Authority
EP
European Patent Office
Prior art keywords
cylinder housing
cylinder
plastic
tumbler
reinforcing insert
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP09741782A
Other languages
German (de)
English (en)
Other versions
EP2283193B1 (fr
Inventor
Dirk Jacob
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huf Huelsbeck and Fuerst GmbH and Co KG
Original Assignee
Huf Huelsbeck and Fuerst GmbH and Co KG
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 Huf Huelsbeck and Fuerst GmbH and Co KG filed Critical Huf Huelsbeck and Fuerst GmbH and Co KG
Publication of EP2283193A1 publication Critical patent/EP2283193A1/fr
Application granted granted Critical
Publication of EP2283193B1 publication Critical patent/EP2283193B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B9/00—Lock casings or latch-mechanism casings ; Fastening locks or fasteners or parts thereof to the wing
    • E05B9/04—Casings of cylinder locks
    • E05B9/048—Stator reinforcements
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B29/00—Cylinder locks and other locks with plate tumblers which are set by pushing the key in
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/16—Use of special materials for parts of locks
    • E05B15/1635—Use of special materials for parts of locks of plastics materials
    • E05B2015/1664—Use of special materials for parts of locks of plastics materials for lock housing
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B45/00—Alarm locks
    • E05B45/06—Electric alarm locks
    • E05B45/08—Electric alarm locks with contact making inside the lock or in the striking plate
    • E05B45/10—Electric alarm locks with contact making inside the lock or in the striking plate by introducing the key or another object

Definitions

  • the invention relates to a lock cylinder component for a motor vehicle.
  • the invention relates to a cylinder housing or a cylinder guide for a lock cylinder of a motor vehicle.
  • the cylinder housing has an opening which is arranged in the longitudinal direction of the cylinder housing and into which a cylinder core with at least one tumbler arranged movably in the cylinder core can be received in a rotatable manner.
  • a Zuroissaufnähme is formed, in which the movable tumbler can at least partially submerge to hold the cylinder core against the cylinder housing rotation.
  • Lock cylinders for motor vehicles usually have a cylinder housing and a cylinder core. Such a lock cylinder is known for example from DE 103 13 125 Al.
  • the cylinder core is rotatably mounted in the cylinder housing.
  • tumblers are slidably and spring loaded added, which can dive differently deep into the cylinder housing depending on the action of an inserted key. If one of the tumblers dips into the cylinder housing, rotation of the cylinder core with respect to the cylinder housing is prevented. Only when a suitable pushed-in key brings the tumblers out of engagement with the cylinder housing, so they disappear completely in the cylinder core, the rotation of the cylinder core relative to the cylinder housing is possible and unlocking the lock takes place. If, on the other hand, no key is inserted or if the wrong key is inserted, the tumblers are in engagement with the cylinder housing and are locked. Ren a rotation, as they dip in part in the cylinder core and partially in the fixed cylinder housing. For this purpose, corresponding recesses are formed in the cylinder housing, in which the tumblers can dip or intervene.
  • cylinder housings are made of metal, so for example produced in the zinc die-casting process.
  • Zinc alloys Zamac are often used which have the required mechanical properties to withstand a load which is exerted by a rotation of the locked cylinder core against the cylinder housing.
  • the object of the invention is to enable an improved lock cylinder arrangement, in particular to provide an improved cylinder housing, which meets safety requirements and is advantageous in the manufacture and use. This object is achieved by a cylinder housing with the features of claim 1 or 2 and a method for producing a cylinder housing with the features of claim 9.
  • the cylinder housing is formed of a high-strength plastic.
  • the production of the cylinder housing from a high-strength plastic offers several advantages.
  • the plastic makes it possible to manufacture the cylinder housing with less weight and therefore leads to savings in the transport of the components and in the fuel consumption of the finished motor vehicle.
  • the raw materials for the cylinder housing made of a high-strength plastic cheaper and spare the natural resources.
  • the production of plastic also allows completely new functionalities, as will be explained below.
  • Plastic is also corrosion resistant and the process of making plastic parts is less prone to failure than metal parts.
  • any material whose essential base is made synthetically.
  • composites should be understood as plastic.
  • the cylinder housing is formed from a plastic which has a tensile strength of at least 200 MPa.
  • thermoplastic engineering materials offer nearly similar material properties.
  • plastics known under the trade name Grivory (trade mark of engineering thermoplastics, manufactured by EMS-Grivoy) provide tensile strengths of about 250 MPa and retain these properties even after prolonged storage. It has also been found that the possibly lower strength compared to metal alloys is nevertheless sufficient to ensure the requirements for the safety of a cylinder lock.
  • the torques to be absorbed by a lock (e.g., 50 Nm) are also to be absorbed by a cylinder housing formed of a high strength plastic.
  • the cylinder housing is formed of a plastic and in the plastic is embedded a reinforcement insert of plastic enclosed.
  • the reinforcement is formed adjacent to the tumbler and has an increased strength compared to the material of the plastic of the cylinder housing.
  • the reinforcing insert is embedded in the material of the cylinder housing and placed so that it is adjacent to a bearing surface for the tumblers, which act on the tumblers upon rotation of the locked cylinder core.
  • the reinforcing insert increases in one area the mechanical load capacity of the cylinder housing, which is particularly stressed when the lock cylinder is loaded by unauthorized actuation. If the tumblers dip into the receptacles in the cylinder housing and therefore lock the lock cylinder against rotation and unlocking of the associated lock, the tumblers, in the event of a violent rotation, come into contact with the contact surfaces of the tumbler and exert a force on them.
  • the reinforcing insert is embedded in and enclosed in the material in this region, absorbs part of the force from the tumblers and distributes the force over the entire extension of the reinforcing insert. In particular, it is prevented that the tumblers, which regularly act with a narrow sides on the cylinder housing, cut into the plastic material.
  • the reinforcing insert absorbs the concentrated or concentrated force and distributes the high pressure to the extension of the reinforcement, which reduces the pressure on the plastic.
  • the reinforcing insert embedded according to the second aspect of the invention is completely enclosed by the material of the cylinder housing.
  • the reinforcing insert may be placed directly below the surface of the abutment surface or at a small distance from the surface inside the cylinder housing body. If the cylinder housing is formed in this way with such a reinforcing insert, a lower strength of the material can be selected for the plastic material of the cylinder housing than was required in the first aspect of the invention.
  • both the design of the cylinder housing made of a high-strength plastic according to the first aspect of the invention and the formation of a plastic with an embedded reinforcing insert, ensure this capacity in the safety-relevant area.
  • the plastic from which the cylinder housing is formed a fiber-reinforced or ball-reinforced material.
  • Fiber-reinforced materials or so-called composite materials have special material properties.
  • the above-mentioned plastic series with the brand name Grivory for example, as a construction material with 30 wt.%, 40 wt.%, 50 wt.% Or 60 wt.% Glass fiber content available and processed.
  • Such materials have properties that make their use for producing a cylinder housing according to the invention particularly advantageous. In particular, they are sufficiently hard and tensile strength to withstand the stresses that act on a violent access to a lock cylinder and in particular the cylinder housing.
  • the tensile strength of such materials is regularly in accordance with ISO 527 in the range of 230 to 270 MPa, the hardness of such materials according to ISO 868 in the range of D 94 (Shore-D hardness).
  • these materials are to be processed with injection molding techniques, which is much easier possible than in the production of conventional cylinder housings with aluminum die-casting.
  • the reinforcing insert is formed of an electrically conductive material.
  • the reinforcing insert may be formed of an electrically conductive material. This opens up new possibilities of functionality of the lock cylinder or the cylinder housing in particular.
  • a conductive material as a reinforcing insert can be used for example as a sensor to detect violent access attempts.
  • the reinforcing insert can be contacted in order to apply or interrogate an electrical signal, a device being provided for evaluating the signal.
  • a voltage signal can be applied, for example, to the conductive insert. If a violent access, so the electrically conductive insert is either contacted by the likewise metallic tumblers or can be damaged or severed by these. This can be detected by evaluating an electrical signal or monitoring the electrical signals on the conductive insert in the cylinder housing. A violent actuation of the door lock can be detected and access to the other vehicle functions can be prevented.
  • This functionality is only possible thanks to the inventive design of the lock cylinder, as a material for the cylinder housing a non-conductive plastic material use place. This shows that the combination of the mechanically highly stable plastic with the metallic insert offers completely new functionalities for the safety functions of a vehicle.
  • a plurality of reinforcing inserts are embedded in the cylinder housing.
  • each of these receiving openings for the tumblers on at least one reinforcing insert which is arranged in the direction of breakage on the receptacle for the tumblers.
  • These reinforcing inserts can all be formed of identical materials and in identical design or designed differently, for example one of the reinforcing inserts can at the same time assume the sensor function already mentioned above.
  • a method for producing a cylinder housing for a lock cylinder of a motor vehicle is disclosed.
  • a metal wire is stretched through the cavity of a tool of an injection molding machine for producing the cylinder housing, wherein the metal wire is tensioned in the axial direction of the lock cylinder to be formed.
  • a plastic is injected into the tool and the metal wire is thereby enclosed and embedded in the interior of the material of the lock cylinder.
  • the hardened work- piece with the embedded metal wire is ejected.
  • the tension of the metal wire through the cavity of the tool prior to injection of the plastic ensures complete extension of the metal wire through the workpiece. In this way, the effect of the cylinder housing according to the invention can be achieved and it is ensured that the reinforcing insert is exposed accessible from the metal wire on both sides.
  • the metal wire is unwound from a wire supply and tensioned by the cavity of the tool. Before or after the injection molding process, the metal wire is then cut to length on both sides of the workpiece. If a use of the metal wire is planned as a sensor, during or after cutting to a contacting of the metal wire can be done or the metal wire is cut at a predetermined distance from the cylinder housing to leave contacts for a clip connection or solder joint.
  • Figure 1 shows a schematic sectional view through a lock cylinder with a cylinder housing according to an embodiment of the invention.
  • Figure 2 shows the lock cylinder shown in Figure 1 in the unlocked position and with inserted key.
  • FIG. 1 shows a cross section through a lock cylinder 1.
  • the lock cylinder housing 2 surrounds the lock cylinder core 3.
  • the cylinder core 3 is rotatably received in the housing 2.
  • a radially continuous recess 4 is formed, in which a tumbler 5 is slidably received.
  • the tumbler 5 can be transverse to move the longitudinal axis of the cylinder core 3 and is biased by a spring 6 against a stop in the cylinder core.
  • an insertion opening 11 is formed, in which a key bit can be inserted.
  • An inserted key bit passes in this way through the tumblers arranged one behind the other and shifts them.
  • the tumbler 5 has a projection 12 on the insertion opening 11, which can engage a lateral groove of the key shank. Due to the formation of the groove in the key shank of a key to be inserted, the tumbler 5 is displaced against the bias 6 and can be brought out of engagement with the opening 8 or 9 with a matching key - lock cylinder combination. If, on the other hand, the cylinder core is not properly unlocked and, in the position shown in FIG. 1, is forcibly released in the unlocking direction (clockwise). moves, z.
  • the tumbler 5 presses with the contact edge 13 against the wall of the receptacle 9.
  • a Reinforcement 14 enclosed by the material of the cylinder housing 2.
  • the cylinder housing 2 is formed from a plastic, in which the insert reinforcement 14 extends in the axial direction.
  • the reinforcing insert 14 is formed of wire and injected into the interior of the material of the cylinder housing 2 in the manufacturing process.
  • the reinforcing insert 14 absorbs a force acting upon forcible access or the pressure of the tumbler 5, which would otherwise possibly lead to damage or cutting into the plastic material of the cylinder housing 2.
  • the pressure is distributed in the axial direction of the cylinder housing 2 and a cutting of the tumblers 5 in the material of the cylinder housing 2 is prevented.
  • the material of the cylinder housing 2 is therefore reinforced in the embodiment shown in the damage-critical and safety-relevant area of the contact edge 13. This makes it possible to use such plastics for safety-relevant lock cylinders which do not actually meet the specifications for such loads. However, the reinforcement increases the stability and load capacity especially in the critical area and the lock cylinder meets the required specifications for safety-relevant applications. The reinforcement makes it possible to optimize the load capacity of the cylinder housing with minimal material expenditure and minimal weight gain.
  • FIG. 2 shows the lock cylinder from FIG. 1 in an unlocked position, wherein a key 15 is inserted into the cylinder core 3 and into the key opening 11 of the lock.
  • Posture 5 was postponed.
  • the lateral groove 16 of the key 15 interacts with the projection 12 of the tumbler 5 and moves the tumbler vertically.
  • the tumbler is out of engagement with the recess 9 in the cylinder housing.
  • the cylinder housing 2 is formed in the illustrated embodiment of a plastic which allows sliding of the cylinder core 3 in the interior of the cylinder housing 2 without additional lubricants. Accordingly, in the illustrated embodiment eliminates the need for greasing of the lock cylinder.
  • an additional reinforcement can be arranged close to the recess 8.
  • the reinforcement may be formed in a different geometry, for. B. with rectangular cross-section or in several superimposed or juxtaposed segments. It is essential that according to the invention, the advantages of the plastic material are exploited, at the same time the associated material disadvantages are repealed.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lock And Its Accessories (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

L'invention porte sur un boîtier pour le cylindre de serrure d'un véhicule automobile, comprenant une ouverture ménagée dans la direction longitudinale du boîtier, dans laquelle peut être reçu un barillet. Le boîtier est réalisé en matière plastique et l'on ajoute à la matière plastique un insert de renforcement qui est réalisé dans un matériau ayant une résistance supérieure à celle de la matière plastique.
EP09741782.8A 2008-05-07 2009-03-19 Renforcement à fil pour un boîtier en plastique d'une serrure cylindrique et procédé de fabrication Not-in-force EP2283193B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200810001627 DE102008001627A1 (de) 2008-05-07 2008-05-07 Schließzylinderbauteil für ein Kraftfahrzeug
PCT/EP2009/002044 WO2009135563A1 (fr) 2008-05-07 2009-03-19 Composant cylindre de serrure pour un véhicule automobile

Publications (2)

Publication Number Publication Date
EP2283193A1 true EP2283193A1 (fr) 2011-02-16
EP2283193B1 EP2283193B1 (fr) 2017-02-01

Family

ID=40792844

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09741782.8A Not-in-force EP2283193B1 (fr) 2008-05-07 2009-03-19 Renforcement à fil pour un boîtier en plastique d'une serrure cylindrique et procédé de fabrication

Country Status (3)

Country Link
EP (1) EP2283193B1 (fr)
DE (1) DE102008001627A1 (fr)
WO (1) WO2009135563A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102926591A (zh) * 2010-04-27 2013-02-13 宁波宜高五金锁具有限公司 智能锁芯的异物插入检测技术
DE102012111606A1 (de) 2012-11-29 2014-04-10 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Zylindergehäuse

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1261278A (fr) * 1960-04-04 1961-05-19 Perfectionnements aux serrures à barillet
US3967481A (en) * 1974-12-30 1976-07-06 Schlage Lock Company Detector cylinder
FR2308765A1 (fr) * 1975-04-22 1976-11-19 Antivols Simplex Sa Perfectionnements aux serrures a barillet
GB2082664B (en) * 1980-08-15 1984-08-15 Ball Plastics Ltd A lock mechanism
DE3134471A1 (de) * 1981-09-01 1983-03-17 Ebe Elektro-Bau-Elemente Gmbh, 7022 Leinfelden-Echterdingen "zylinderschloss"
DE10313125A1 (de) 2003-03-24 2004-10-14 Huf Hülsbeck & Fürst Gmbh & Co. Kg Schließzylinder
US7875228B2 (en) * 2006-05-26 2011-01-25 Sg Design Technologies Apparatus, system, and method for maintaining part orientation during manufacturing

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2009135563A1 *

Also Published As

Publication number Publication date
EP2283193B1 (fr) 2017-02-01
DE102008001627A1 (de) 2009-11-12
WO2009135563A1 (fr) 2009-11-12

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