EP0367433B1 - Système de fermeture consistant en une clef plate et en un cylindre de serrure - Google Patents

Système de fermeture consistant en une clef plate et en un cylindre de serrure Download PDF

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Publication number
EP0367433B1
EP0367433B1 EP89310516A EP89310516A EP0367433B1 EP 0367433 B1 EP0367433 B1 EP 0367433B1 EP 89310516 A EP89310516 A EP 89310516A EP 89310516 A EP89310516 A EP 89310516A EP 0367433 B1 EP0367433 B1 EP 0367433B1
Authority
EP
European Patent Office
Prior art keywords
cylinder
locking device
tumblers
key
further characterised
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
Application number
EP89310516A
Other languages
German (de)
English (en)
Other versions
EP0367433A1 (fr
Inventor
Peter Bernhard Braun
Herbert Philipp Hauser
Robert Wedekind
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.)
Dom Sicherheitstechnik GmbH and Co KG
Original Assignee
Dom Sicherheitstechnik 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 Dom Sicherheitstechnik GmbH and Co KG filed Critical Dom Sicherheitstechnik GmbH and Co KG
Priority to AT89310516T priority Critical patent/ATE87703T1/de
Publication of EP0367433A1 publication Critical patent/EP0367433A1/fr
Application granted granted Critical
Publication of EP0367433B1 publication Critical patent/EP0367433B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B27/00—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in
    • E05B27/0082—Side bar locking
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B27/00—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in
    • E05B27/10—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in operated by other surfaces of the key, e.g. openings receiving projections on the tumblers
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B19/00—Keys; Accessories therefor
    • E05B19/0017—Key profiles
    • E05B19/0041—Key profiles characterized by the cross-section of the key blade in a plane perpendicular to the longitudinal axis of the key
    • E05B19/0052—Rectangular flat keys
    • E05B19/0058—Rectangular flat keys with key bits on at least one wide side surface of the key
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B27/00—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in
    • E05B27/0078—Asymmetrical tumbler pins, e.g. with a key operating on a radial protrusion of a tumbler pin

Definitions

  • This invention relates to a locking device comprising a flat key and a lock cylinder, having tumblers controlled by at least one groove located on the broad side of the key, each tumbler being provided with recesses for the partial entry of at least one locking element which extends parallel to the lock cylinder and can be displaced in a generally radial direction, which acts together with at least one cutout of the cylinder housing lying in the shear line of the cylinder plug.
  • a locking device of the kind referred to above is known from US Patent Specification No. 3,035,433, in which the locking element is designed as a body of rectangular cross-section, the thickness of which is approximately half its height in the radial direction. Projections depart from the inner flank of the locking element, which act together with the recesses of the tumblers. The locking element is acted on by compression springs at each end in the outward direction, so that when the key is withdrawn, the outer section of the locking element engages the cutout of the cylinder housing.
  • the invention provides a locking device comprising a flat key and a lock cylinder, having tumblers controlled by at least one groove provided in the broad side of the key, each tumbler being provided with recesses for the partial entry of at least one locking element extending parallel to the lock cylinder axis which can be displaced in a generally radial direction which acts together with at least one cutout of the cylinder housing lying in the shear line of the cylinder plug, characterised in that the locking element is a cylinder of a circular cross-section and that the recess and the cutout are each of a depth, which is smaller than the radius of the cylinder.
  • a locking device of the type referred to is produced, which has a particularly simple construction and is consequently economical to produce.
  • the number of the component parts is reduced to a minimum, having regard to the high locking effect.
  • the manufacture of the locking element, in the form of a cylinder of circular cross-section can be carried out using calibrated, commercially-obtainable round bar material. To produce the locking elements, it is only required to cut the round bar material into pieces of appropriate length. There is a further advantage that no special extending bevels or inclined planes are required, since after insertion of the correct flat key into the keyway of the lock cylinder the locking element is extended by its cross-sectional shape.
  • the locking element Depending on the cross-sectional shape of the locking element and the ratio of the radius of the cylinder to the depth of the recess and to the cutout, it is possible to locate the locking element without any springs thus saving the respective compression springs. In addition to this saving there is a further advantage that friction is reduced during locking, so that locking can be carried out with less force.
  • the spring loading of the tumblers can also be dispensed with. They, or at least some of them, are moved into their end position by the driving force of the groove on the broad side of the key and push with it the cylindrical locking element into the cutout of the cylinder housing lying at the shear line of the plug.
  • the tumblers move into the end position under gravity.
  • the tumblers are then displaced by the inserted key so that their recesses lie opposite to the locking element.
  • the locking element can thus engage into the recesses as the key is turned for locking.
  • the locking element which eventually rolls along the plug bore of the cylinder housing thereby additionally results in a bearing effect, so that locking is easy to perform.
  • the tumblers are in the form of pins which are resistant to twisting and that the recess has a profile in the shape of the segment of a circle. This ensures that after the tumblers are appropriately arranged by the key the recesses lie exactly opposite to the locking element.
  • the tumbler may be a pin of circular-cylindrical cross-section, from which a radial projection departs. The latter projects into the keyway and moves along the groove in the broad side of the key. A square pin could alternatively be used.
  • the stop ends of the cutout are shaped to match the shape of the circumferential wall of the cylinder. Provision of the locking element is made simpler since the depth of the recess and cutout are equal to approximately half of the radius of the cylinder.
  • the cylinder can be sub-divided into a number of longitudinal sections. If cutouts are then assigned to the longitudinal sections, which cutouts are then assigned to the longitudinal sections, which cutouts extend over tangential angles of differing size, then keys can be used, so that rotary angles which vary in size can be used in the locking operation. It is therefore suitable for this embodiment of the locking device according to the invention to be used for cashier systems. With even a small construction, sixteen different angular positions can be obtained.
  • tumblers which are in the form of pins in two rows, and to control these by grooves provided on both broad sides of the key, and further to provide two cylinders diametrically opposed to one another.
  • the effectiveness of locking is increased.
  • two diametrically-opposed cylinders also provide improved support, in particular with respect to bearing efficiency.
  • the tumblers have transverse bosses for engagement in the appropriate groove on the broad side of the key.
  • angular slots of an appropriate width are provided between the keyway and the bore for the tumblers, so that the transverse bosses have a dual function. On the one hand they prevent the tumblers from twisting and on the other hand they follow the groove in the broad side of the flat key.
  • the locking device 1 is a unit comprising a lock cylinder 2 and a flat key 3.
  • the latter has a key handle 4, onto which is joined in stepped-down arrangement a key shank 5.
  • a groove 6 is machined into each of the two broad sides of the key shank 5.
  • the grooves 6 are arranged so that the flat key can also be inserted in a position rotated through 180°.
  • the groove 6 of the flat key 3 as shown in Figure 3 comprises control sections a, b, c, d and e, which are joined over intermediate sections.
  • In front of the control section a located at the front end of the key a capture slot 7 which widens into a V-shape is arranged.
  • the lock cylinder 2 has a cylinder housing 8 having a radially projecting collar 9 at the key insertion end.
  • the cylinder housing 8 is circular in cross-section and is provided with an external thread 10.
  • a core bore 11 for locating a cylinder plug 12 extends centrally within the cylinder housing 8.
  • a flange 13 is provided at the key insertion end, projecting above the cylinder plug 12, which flange locates in a bore section 11′ of the core bore 11 of matching profile and determines the axial position of the plug 12.
  • the other end of the cylinder plug 12 is provided with an annular groove 14 for the insertion of a retaining ring 15.
  • the retaining ring 15 abuts the rear end of the cylinder housing 8 as shown in Figure 3.
  • a keyway 16 is provided centrally in the cylinder plug 12, penetrating the plug 12 in the longitudinal direction. One narrow edge of the keyway 16 terminates within the area of the cylinder plug 12. The centre of the keyway 16 consequently lies offset to the centre axis of the cylinder plug 12.
  • a row of tumblers 17 is adjacent to each broad side of the keyway 16.
  • each row comprises five tumblers 17 so that two tumblers of each of the two rows lie on a common cross-sectional plane.
  • the tumblers 17 are in the form of pins of circular-cylindrical cross-section and are guided in blind holes 18 of matched cross-section of the cylinder plug 12, which blind holes 18 depart from the same side of the plug 12 as the keyway 16.
  • the blind holes 18, which run parallel to the keyway 16 touch the adjacent keyway wall.
  • the tangential region of each blind hole 18 is open towards the keyway 16 because of a transverse slit 19.
  • the transverse slit 19 ending in the blind hole 18 accommodates a transverse boss 20 of the tumbler 17.
  • the transverse bosses 20 are of circular cross-section and are matched in their diameter with the width of the transverse slits 19. In this way, the tumblers 17 are protected from twisting. Further, the transverse bosses 20 are of such a length, that the end projecting into the keyway 16 is equal to approximately one third of the width of the keyway.
  • each tumbler 17 is provided with a recess 21 for the partial entry of a locking element 22 which extends parallel to the axis of the lock cylinder and can be displaced in a generally radial direction which locking element 22 acts together with a cutout 23 of the cylinder housing 8 provided in the shear line of the cylinder plug.
  • the locking element 22 is a cylinder of circular cross-section, so that the recess 21 and also the cutout 23 are of a depth which is smaller than the radius of the cylinder. In the embodiment shown in the drawings the depth of the recess 21 and the cutout 23 are approximately equal to half of the radius of the cylinder 22.
  • the curvature of the wall of the recess 21 and of the circumference of the cylinder 22 match each other. That means, that the cylinder 22 enters into the recess 21 with a matching profile.
  • Appropriate matching was made for the cutout 23, the stop ends 23′ and 23 ⁇ of which are shaped to match the contour of the circumferential wall of the cylinder 22.
  • the stop ends start at the level of the cylinder plug join and extend up to the lowest point of the cutout.
  • the dimensions are also matched so that as the tumblers 17 are moved under gravity into their lower position, the locking element 22 is completely pressed by the tumblers into the cutout 23 and is arranged with practically no radial play.
  • the cylinder plug 12 has two radially aligned, diametrically opposed longitudinal slots 24, which form the connection between the circumference of the cylinder plug and the blind holes 18. The width of the slots 24 thereby matches the diameter of the locking element 22.
  • each locking element 22 is subdivided into three longitudinal sections 25, 26, 27 arranged one behind the other.
  • the two longitudinal sections 25, 26 lying towards the inside of the cylinder are of such a length, that each longitudinal section 25, 26 acts with two tumblers 17.
  • the longitudinal section 27 at the key insertion end acts with a single tumbler 17.
  • Cutouts 23 are assigned to the aforementioned longitudinal sections 25, 26, 27, which cutouts 23, extend over tangential angles which differ in size.
  • the cutouts 23 which accommodate the longitudinal sections 25 therefore have stop ends 23′, 23 ⁇ , which are directly adjacent to each other.
  • the stop ends 23′, 23 ⁇ of the cutouts 23, to which the longitudinal sections 26 are assigned are joined together over an arc section B, which extends over approximately 90°.
  • the stop ends 23′, 23 ⁇ of the cutouts working together with the shorter longitudinal sections 27 have an angular distance of approximately 120°, bridged by an arc B′.
  • the locking elements 22 and the tumblers 17 operate without springs. If the flat key 3 is not inserted, then all or at least some of the tumblers 17, according to the ratio of friction, take up due to gravity their lower end position defined by the bottom of the blind holes 18.
  • the tumblers 17 are arranged by the control sections a to e over the transverse bosses 20, so that the longitudinal sections 25 to 27 of the locking elements 22 are in alignment with the recesses 21 of the tumblers 17.
  • the cylinder plug 12 can then be rotated in any direction. Respective angular positions are shown in the Figures 7 to 9. At the start of the locking rotation in the clockwise direction of the locking elements 22, because of their cross-sectional profile and the appropriate stop ends of the cutouts 23, are moved inwardly in the radial direction and become embedded in the recesses 21 of the tumblers 17.
  • the lock cylinder 2 is shown locked with an alternative design of flat key 3′.
  • the key 3′ is basically similar in design to the flat key 3. Only the control section b′ on the broad side of the key groove 6 is in a different place. If the reversible flat key 3′ is inserted into the keyway 16, then all tumblers 17 are properly arranged except for the two tumblers lying in a cross-sectional plane, which are associated with the control sections b′.
  • the control sections b′ are arranged, so that they displace the corresponding tumblers, as shown in Figures 10 and 12, so that the recesses 21 lie offset relative to the cylinders 22.
  • the longitudinal sections 26 of the locking elements 22 are thus not able to deflect radially.
  • Rotary displacement of the cylinder plug 12 in one direction is still possible, that is over the arc B extending through 90°, which joins together the stop ends 23′ and 23 ⁇ .
  • This partial rotation is terminated as soon as the longitudinal sections 26 locate against the stop ends 23 ⁇ of the appropriate cutouts 23, as can be seen in the rotated position of the cylinder plug in Figures 14 to 16, in which the backstop position is shown in Figure 15.
  • the flat key 3 ⁇ as shown in the Figures 17 to 23 is to be used.
  • This key is of similar design to the flat key 3′ and differs from it in that the control stage e′ takes up a different vertical position.
  • the tumblers associated with the longitudinal sections 25, 26 are properly arranged by the inserted flat key 3 ⁇ so that the recesses of the tumblers 21 are in alignment with the longitudinal sections 25, 26, as shown in Figures 18 and 19.
  • the appropriate tumblers 17 are however displaced by the control sections e′ so that the recesses 21 of the tumblers cannot align with the longitudinal sections 27.
  • the lock cylinder 2 can be operated by three keys 3, 3′ and 3 ⁇ .
  • a type of construction is also possible, in which the locking elements 22 are undivided, as shown in dash-dotted depiction in Figure 2.
  • Two diametrically opposed cutouts 23 departing from the core bore 11 are then provided.
  • a flat key similar to flat key 3 would then have to be used.
  • the remaining flat keys 3′, 3 ⁇ would not be able to produce rotation.

Landscapes

  • Lock And Its Accessories (AREA)
  • Switches With Compound Operations (AREA)

Claims (10)

  1. Dispositif de verrouillage (1) comprenant une clé plate (3) et un barillet de serrure (2), comportant des goupilles (17) commandées par au moins une rainure (6) prévue dans la face large de la clé (3) et où chaque goupille (17) est munie d'encoches (21) destinées à laisser entrer partiellement au moins un élément de verrouillage (22) qui s'étend parallèlement à l'axe du barillet de serrure et qui peut se déplacer dans une direction généralement radiale, lequel élément de verrouillage coopère avec au moins un évidement (23) du stator (8) du barillet, qui se trouve dans la ligne de cisaillement du rotor (12) du barillet, caractérisé en ce que l'élément de verrouillage (22) est un cylindre de section transversale circulaire et en ce que l'encoche (21) et l'évidement (23) sont chacun d'une profondeur inférieure au rayon du cylindre (22).
  2. Dispositif de verrouillage selon la revendication 1, caractérisé en outre en ce que les goupilles (17) sont des tiges empêchées de tourner sur leur axe et l'encoche (21) a un profil ayant la forme d'un segment de cercle.
  3. Dispositif de verrouillage selon la revendication 2, caractérisé en outre en ce que les courbures de la paroi de l'encoche (21) et de la circonférence du cylindre (22) sont complémentaires.
  4. Dispositif de verrouillage selon l'une au moins des revendications précédentes, caractérisé en outre en ce que des extrémités de butée (23′, 23˝) de l'évidement (23) sont conformées de façon à être complémentaires de la forme de la paroi circonférentielle du cylindre (22).
  5. Dispositif de verrouillage selon l'une au moins des revendications précédentes, caractérisé en outre en ce que la profondeur de l'encoche (21) et celle de l'évidement (23) représentent approximativement la moitié du rayon du cylindre (22).
  6. Dispositif de verrouillage selon l'une au moins des revendications précédentes, caractérisé en outre en ce qu'au moins une des goupilles (17) présente plusieurs encoches (21, 21′) disposées l'une à la suite de l'autre.
  7. Dispositif de verrouillage selon l'une au moins des revendications précédentes, caractérisé en outre en ce que le cylindre (22) est subdivisé en plusieurs segments longitudinaux (25, 26, 27).
  8. Dispositif de verrouillage selon la revendication 2, caractérisé en outre en ce que les segments longitudinaux (25, 26, 27) sont associés à des évidements (23) qui s'étendent sur des angles tangentiels de grandeurs différentes.
  9. Dispositif de verrouillage selon l'une au moins des revendications précédentes, caractérisé en outre en ce que les goupilles (17) présentant la forme de tiges sont disposées en rangée et sont commandées par des rainures (6) prévues sur les deux faces larges de la clé (3, 3′, 3˝) et en ce que le rotor (12) de barillet supporte deux cylindres (22) diamétralement opposés.
  10. Dispositif de verrouillage selon l'une au moins des revendications précédentes, caractérisé en outre en ce que les goupilles (17) portent des bossages transversaux (20) destinés à coopérer avec la rainure (6) de la face large correspondante de la clé (3).
EP89310516A 1988-10-29 1989-10-13 Système de fermeture consistant en une clef plate et en un cylindre de serrure Expired - Lifetime EP0367433B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89310516T ATE87703T1 (de) 1988-10-29 1989-10-13 Schliesseinrichtung, bestehend aus flachschluessel und schlosszylinder.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3836872A DE3836872C2 (de) 1988-10-29 1988-10-29 Aus Flachschlüssel und Schließzylinder bestehende Schließvorrichtung
DE3836872 1988-10-29

Publications (2)

Publication Number Publication Date
EP0367433A1 EP0367433A1 (fr) 1990-05-09
EP0367433B1 true EP0367433B1 (fr) 1993-03-31

Family

ID=6366143

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89310516A Expired - Lifetime EP0367433B1 (fr) 1988-10-29 1989-10-13 Système de fermeture consistant en une clef plate et en un cylindre de serrure

Country Status (4)

Country Link
EP (1) EP0367433B1 (fr)
AT (1) ATE87703T1 (fr)
DE (2) DE3836872C2 (fr)
ES (1) ES2039080T3 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK0623186T3 (da) * 1991-12-19 1998-12-07 Assa Ab Cylinderlås-nøglekombination
AT400968B (de) * 1993-03-03 1996-05-28 Evva Werke Zylinderschloss und flachschlüssel mit steuernuten
DE19508783C2 (de) * 1995-03-03 1997-05-28 Ikon Praezisionstechnik Schließzylinder
DE19944070C2 (de) * 1999-09-15 2001-08-16 Huf Huelsbeck & Fuerst Gmbh Schließvorrichtung, insbesondere für Kraftfahrzeuge
EP2171648A4 (fr) * 2007-07-19 2011-06-29 Datakey Electronics Inc Procédé et système de récipient et de jeton hf
USD649894S1 (en) 2008-12-30 2011-12-06 Atek Products, Llc Electronic token and data carrier
USD649895S1 (en) 2009-01-30 2011-12-06 Atek Products, Llc Electronic token and data carrier
EP2391991A1 (fr) 2009-01-30 2011-12-07 Atek Products, LLC Système de support de données ayant une empreinte compacte et procédés de fabrication de celui-ci
USD649896S1 (en) 2009-01-30 2011-12-06 Atek Products, Llc Electronic token and data carrier receptacle
USD649486S1 (en) 2009-07-09 2011-11-29 ATEK Products , LLC Electronic token and data carrier
FR2956690B1 (fr) * 2010-02-23 2014-03-14 Valeo Securite Habitacle Dispositif pour ouvrant de vehicule a demi-paillettes

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR475121A (fr) * 1914-01-20 1915-04-16 Charles Renaux Dispositif de sureté à billes pour serrures et autres applications
US2629247A (en) * 1948-07-14 1953-02-24 Leo E Deutsch Cylinder lock
US3035433A (en) * 1959-10-30 1962-05-22 Eagle Lock Corp Lock mechanism
CH537509A (fr) * 1971-02-24 1973-05-31 Parlier Roger Serrure à clé
CH590550A5 (fr) * 1975-07-02 1977-08-15 Bauer Kaba Ag
DE2711061C2 (de) * 1976-03-16 1985-05-30 Lowe & Fletcher Ltd., Leamore, Walsall, West Midlands Permanentmagnet-Schlüssel betätigbares Schloß
AT371196B (de) * 1979-11-28 1983-06-10 Evva Werke Schloss mit einem zylinderkern und einem zylindergehaeuse

Also Published As

Publication number Publication date
EP0367433A1 (fr) 1990-05-09
DE3836872C2 (de) 1994-10-20
DE3836872A1 (de) 1990-05-03
DE68905754T2 (de) 1993-07-08
ATE87703T1 (de) 1993-04-15
ES2039080T3 (es) 1993-08-16
DE68905754D1 (de) 1993-05-06

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