EP2398983A1 - Serrure a barillet et cle combinees comportant un element de blocage dans la serrure - Google Patents

Serrure a barillet et cle combinees comportant un element de blocage dans la serrure

Info

Publication number
EP2398983A1
EP2398983A1 EP10744024A EP10744024A EP2398983A1 EP 2398983 A1 EP2398983 A1 EP 2398983A1 EP 10744024 A EP10744024 A EP 10744024A EP 10744024 A EP10744024 A EP 10744024A EP 2398983 A1 EP2398983 A1 EP 2398983A1
Authority
EP
European Patent Office
Prior art keywords
key
lock
keyway
blocking element
cross
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.)
Withdrawn
Application number
EP10744024A
Other languages
German (de)
English (en)
Other versions
EP2398983A4 (fr
Inventor
Bo Widén
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.)
Winloc AG
Original Assignee
Winloc AG
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 Winloc AG filed Critical Winloc AG
Publication of EP2398983A1 publication Critical patent/EP2398983A1/fr
Publication of EP2398983A4 publication Critical patent/EP2398983A4/fr
Withdrawn legal-status Critical Current

Links

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
    • E05B27/0042—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in with additional key identifying function, e.g. with use of additional key operated rotor-blocking elements, not of split pin tumbler type
    • 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
    • E05B19/0023—Key profiles characterized by variation of the contact surface between the key and the tumbler pins or plates
    • 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
    • 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

Definitions

  • the present invention relates to a cylinder lock and key combination, wherein said cylinder lock comprises:
  • a housing having a cylindrical bore, a cylindrical key plug being rotatably journalled in said cylindrical bore, - said key plug having a longitudinal, profiled keyway and means for locking the key plug against rotation in the cylindrical bore unless a correctly cut key is fully inserted into the keyway,
  • said keyway being oriented along a central plane and having a profiled cross-section being partly defined by a profile rib extending longitudinally along said key plug and having a predetermined cross-sectional contour along at least a part of its length, and wherein said key comprises a key blade having: - a cross-sectional profile fitting into said keyway, and
  • profile groove extending longitudinally along the key blade, said profile groove having a cross-sectional profile configured to accommodate said pro- file rib of the keyway when the key is being inserted into the lock.
  • the object of the invention is to provide a lock and key combination which provides for an even greater number of profile varieties.
  • this object is achieved by providing the lock with a blocking mechanism having at least one movable blocking element, serving as a movable keyway portion and reaching into the keyway in the vicinity of the profile rib, said blocking element being movable from a first blocking position, in which a first projecting portion of the cross-sectional profile of the blocking element extends out- side the cross-sectional contour of said profile rib, into a second blocking position, in which a different, second projecting portion of said blocking element extends outside the cross-sectional contour of the profile rib and is accommodated by a local recess of a correctly configured key blade.
  • first and second projecting portions of the blocking element are non-symmetrical in shape. Only one of these blocking element portions is visible when there is no key inserted into the key way, so when the keyway is free for inspection from the outside, the second projecting portion of the blocking element is concealed within a cut-out portion of the profile rib. Since it has a non-symmetrical configuration in relation to the visible, first projecting portion of the movable blocking element, it is also impossible to predict what shape it has. Accordingly, the effective, local profile of the keyway is virtually impossible to determine, and it will therefore be difficult to make a key that will open the lock on the basis of only inspecting the keyway.
  • the blocking element can be regarded as a movable keyway portion, the shape of which is unknown.
  • the movable blocking element or keyway portion may be configured in many different ways. It may have a part with a cross- section which, apart from the second projecting portion, has a cross-section corresponding substantially to only a part of the cross-sectional area of the profile rib, or it may have a cross-section corresponding entirely to the cross-sectional contour of the profile rib. In the latter case, of course, the blocking element will match and entirely fill out the profile groove of the key blade, whereas the projecting, second portion of the blocking element needs to be accommodated by a lo- cal recess in the key blade. Otherwise, the second portion of the blocking element will stop further insertion of the key blade into the keyway.
  • the second, projecting portion of the blocking element may have a slanted surface portion, which faces obliquely away from the associated side wall of the keyway, and the profile rib may have a corresponding, inclined surface portion also facing obliquely away from the associated side wall of the keyway.
  • the inclinational angle relative to a plane perpendicular to said side wall of the keyway is about the same as the inclinational angle of the inclined surface portion of the base portion of the profile rib.
  • the second projecting portion of the blocking element may extend upwards with a tapering end, even to a region where the keyway (and thus also the key blade) has a transition between a relatively wide lower portion and a relatively narrow upper portion, and even so leave a sufficient material region for the key blade to have sufficient strength in the corresponding transition region.
  • the slanted surface portion of the blocking element will pro- vide a relatively large travel distance for the blocking element and will thus secure a maximum blocking effect, i.e. a good capability of preventing an incorrectly cut key blade from being fully inserted into the key blade.
  • the blocking element corresponds to the cross-sectional area of a base part of the profile rib only.
  • the blocking element extends through a side opening in a side wall of the keyway from a body which is movably guided in a side cavity in the key plug, the body and the blocking element forming parts of a blocking mechanism of the lock.
  • the blocking element can be properly guided for a linear movement elevationally while making contact with a key being inserted into the keyway.
  • the body and the associated cavity are substantially cylindrical .
  • the blocking element preferably by way of the guided body in the cavity, may cooperate with a means for locking the key plug against rotation, e.g. by means of a side bar or by an end portion of the body extending past a circumferential sur- face of the key plug so as to register with a recess or hole in the lock housing, whereby the key plug will be firmly locked.
  • Such a locking of the key plug against rotation may be supple- mented by a conventional locking mechanism with lower and upper locking pins, located above the keyway and being guided in associated holes in the key plug and the housing, respectively.
  • Figure Ia shows, in a side view a cylinder lock according to the present invention, with a key blade inserted therein;
  • Figure Ib shows the cylinder lock and key combination of fig. Ia in a perspective view; .
  • Figure Ic shows the lock and key combination of fig. Ia in a perspective, exploded view, illustrating a locking mechanism above the keyway of the lock;
  • Figure Id shows a cross-section along the line Id-Id in figure Ia also illustrating a blocking element
  • Figure Ie shows a cross-section similar to the one in figure Id, without an inserted key
  • Figure 2 shows, in a side view, a lock and key combination with a modified blocking element
  • Figure 3 shows a cross-section along the line III-III in figure 2 ;
  • Figure 4a shows a cross-section along the line IVa-IVa in figure 2 ;
  • Figure 4b shows a part of fig. 4a at a larger scale
  • Figure 5a, 5b, 5c show, in views similar to figures Ia, Id and Ie (without a key) , an embodiment having a blocking element also serving to lock the key plug against rotation;
  • Figures 6a, 6b, 6c show the embodiment of figures 5a, 5b, 5c upon insertion of a key blade into the lock;
  • Figures 7a, 7b show schematically in perspective views how the key blade interacts with the blocking element of the lock (fig. 7b at a larger scale);
  • Figures 8a and 8b show the key blade of figures 7a, 7b in a side view (fig. 8b at a larger scale);
  • Figures 9a and 9b show, in views corresponding to figures 7a and 7b, a key blade and an associated blocking element of the kind also serving to lock the key plug against rotation;
  • Figure 10 shows, in a side view, a key blade and a blocking element located closer to the entrance of the keyway;
  • Figure 11 and 12 show the blocking element and the key blade of fig. 10 in a cross-sectional view and an end view, respectively.
  • FIGS. Ia, Ib, Ic, Id, Ie there is shown a cylinder lock and key combination having conventional upper and lower tumbler pins 1, 2 in a linear row (fig. Ic) cooperating with an upper edge of the inserted key blade, the upper edge having a corresponding number of recess cuts 11, 12, 13, 14, 15, 16 at various levels.
  • a blocking element 20 Deep inside the keyway of the lock, not very far from the tip of the inserted key blade, there is a blocking element 20, which is movable elevationally (up and down) at the side of the keyway.
  • the cylindrical housing of the lock is denoted 30, having an upright housing part 31 accomodating the upper locking pins 1,2 mentioned above and a cylindrical bore 32, in which a cylindrical key plug 33 is rotatably journalled.
  • the key plug 33 has a central keyway 34 extending longitudinally along the axis of the cylindrical bore 32 and a central plane A extending through the cylindrical axis and the upper housing portion 31. In a longitudinal row in this plane A, there are a number of cylindrical holes (not visible in fig. Id) each accommodating one of the lower locking pins 2. In figures Id and Ie, the profile of the keyway 34 (figure Ie) and the corresponding key blade 60 (fig. Id) are clearly vis- ible.
  • the keyway 34 is oriented along the central plane A. It has a lower, rather wide portion 50a, and an upper, relatively narrow portion 50b.
  • the upper and lower portions of the keyway have side walls 50c and 5Od lying in a common plane in pa- rallel to the central plane A (to the right thereof in figure 3) .
  • the upper keyway portion 50b has a side wall 5Oe
  • the lower part of the keyway has a side wall 5Of, the latter being located further away from the central plane A than the upper side wall 50e.
  • the profile rib 51 On the right hand side of the keyway, there is a longitudinal, profiled rib 51 extending along the key plug.
  • the profile rib 51 has a base portion 52 (concealed by the blocking element 20 in fig. Id) and an end portion 53 provided with a downwardly directed tongue 54.
  • the keyway On the left hand side, the keyway has two longitudinal ribs 55 and 56 at the lower portion of the keyway.
  • the key blade 60 (fig. Id) has a profile shape which is substantially supplementary to the keyway 50. Accordingly, the key 60 has a lower base portion 60a, which is relatively wide, and an upper portion 60b, which is relatively narrow.
  • the key blade has a longitudinally extending groove 61 with an outer portion 62, and an inner, undercut portion 63.
  • the profile groove 60 has a bottom wall 64 and an opposite side wall 65, which is inclined and faces the bottom wall 64 and also forms the in- side wall of a ridge 66 extending along the key blade 60.
  • the profile groove 61 acco- modates the longitudinally extending profile rib 51, including the downwardly directed tongue 54 in the undercut portion of the groove 61.
  • the key blade 60 has two longitudinal grooves 67 and 68 corresponding to the profile ribs 55, 56.
  • the outer portion 62 of the profile groove 61, and the corresponding base portion 52 of the profile rib 50 has a slanted upper wall 69 and a slanted surface 59, respectively.
  • the key blade 60 can be inserted partially or fully into the key- way, as is known in the art. Of course, only key blades being cut with the particular profile of the keyway may be fully inserted into the keyway.
  • a blocking element 20 (as mentioned above) which can be regarded as a movable profile portion.
  • the blocking element has a profile section, which corresponds to the longitudinally extending groove 61 in the key blade. However, in the region of the outer portion 62 of the groove 61, it is somewhat larger, in a direction parallel to the central plane A. So, it does not fit into the profile groove of the keyway along the full length thereof.
  • the key blade 60 is provided with a recess 70 which is wide enough to accommodate the uppermost portion of the blocking element 20, as will be explained more fully below.
  • the blocking element 20 In order to secure a well-defined mobility of the blocking element 20, it is integrated with or firmly connected to a body 23, which is guided for elevational movement in parallel to the central plane A of the key way in a substantially cylindrical cavity 24 at the side of the keyway. Thus, the body 23 is guided for movement up and down in the cylindrical cavity 24, so that the integrated or connected blocking element 20 is also movable up and down.
  • the blocking element 20 may protrude partially or fully into the profile groove 61, in a cut-out portion of the profile rib. 51.
  • the cross-sectional area of the blocking element 20, in the portion protruding into the groove corresponds essentially to the contour of the profile rib 51, with an outermost part having a downwardly directed tongue 25.
  • the rest of the blocking element has exactly the same configuration as the previous embodiment (fig. Id) .
  • the blocking 20 element is integrated with or connected to a guiding body which also serves as a locking element serving also to lock the key plug against rotation in the cylindrical bore 32.
  • the body 23 is extended downwardly so as to project with an end portion 23a past the circumferential surface of the key plug into a corresponding hole 30a in the housing. This is the position taken by the body and the blocking element in the initial position without any key blade being inserted into the keyway.
  • the key plug 33 is effectively locked against rotation by means of the upper and lower locking pins 1, 2 as well as the downwardly projecting body 23 with its end portion 23a entering the hole 30a.
  • Figures 6a, 6b, 6c show the situation where a key blade has been inserted into the key way. Then, the blocking element 20 is lifted upwards, so that the end portion 23a of the body 23 also leaves the corresponding hole 30a. Of course, in this po- sition, the key plug 33 is free to rotate in the cylindrical bore 32.
  • the elevational movement of the blocking element 20 is caused by a direct mechanical contact with the key blade, when the latter is inserted into the keyway.
  • FIG. 7a, 7b, 8a, 8b, 9a, 9b The interaction between the blocking element and the key blade is illustrated in figures 7a, 7b, 8a, 8b, 9a, 9b.
  • the blocking element 20 will be positioned in its lowermost position, because of the action of a compression spring 26 in the cavity 24 (figure Id) .
  • the profile groove 61 of the key blade 60 has no undercut portion, but this will not make any difference to the interaction between the key blade and the blocking element 20.
  • the blocking element would be jammed between the ramp surface 75 and the upper, slanted wall 69 (fig. 7b) of the longitudinal profile groove.
  • the major part of the blocking element 20 will be concealed in a cut-out portion of the profile rib 51.
  • the initial, lowermost position only the first, projecting portion 21 will be visible from the outside (see fig. Ie), whereas in the elevated position shown in figures 7b, 9b, only the second projecting portion 22 will ex- tend upwardly above the longitudinal profile rib 51 (see fig. Id) .
  • this second, elevated position will only be taken by the blocking element 20 upon insertion of the key blade, so this portion 22 will never be visible from the outside of the keyway (looking into the keyway when the latter is free) .
  • the lower projecting portion 21 of the blocking element 20 is non-symmetrical in shape in relation to the upper or second projection portion 22.
  • the second projecting portion 22 has an upper, slanted surface portion 22a (fig. 7b) which faces obliquely away from the associated side wall 5Od of the keyway.
  • the blocking element 20 is located deep inside the keyway near the tip end of the key blade upon full insertion of the key blade into the keyway.
  • the first or lower projecting portion 21 of the blocking element 20 contacts a machined, slightly recessed surface 76 (fig. 8b) adjacent to the lower side wall of the profile groove (in this embodiment there is no undercut portion), whereas the upper or second projecting portion 22 of the blocking element 20 is accommodated in the local recess 70.
  • This recess 70 is confined to the region of the fully inserted key blade in the vicinity of the blocking element 20.
  • the blocking element 20 is located closer to the entrance of the keyway, so when the key blade is fully inserted into the keyway, the blocking element 20 is far away from the tip end of key blade.
  • the lower part of the key blade material next to the groove 61 is taken away.
  • the ridge portion 66 except for a portion near the tip end of the key blade, is cut away up to the location of the blocking element, leaving a lower side wall 77.
  • the local upper recess accommodating the second or upper projecting portion 22 of the blocking element 20 is located so as to start, with some overlap, where the lower side wall 77 and an adjoining inclined or ramp surface 78 ends.
  • the overlap length should correspond or slightly exceed the dimension of the blocking element 20 in the longitudinal direction of the key plug.
  • the upper wall portion of the recess 70 is slanted at an angle corresponding to the second projecting portion 22 of the blocking element 20.
  • the key blade is provided with a second local recess 70 near the tip end, just like the key blade shown in figures 8a and 8b. Therefore, the key blade of figure 10 will cooperate also with a blocking element 20 arranged deep inside the keyway, like the ones shown in figure 7b and 9b.
  • the blocking element may be configured differently, within the scope of the following claims.

Landscapes

  • Lock And Its Accessories (AREA)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)

Abstract

L'invention concerne une serrure à barillet et une clé combinées. La serrure comprend un corps (30) comportant un orifice cylindrique et un élément (33) de clé cylindrique pouvant tourner dans l'orifice cylindrique. L'élément de clé comporte une entrée de clé (34) profilée longitudinale et des moyens (1, 2) pour bloquer l'élément de clé afin de l'empêcher de tourner dans l'orifice cylindrique, à moins qu'une clé correctement découpée soit entièrement insérée dans la rainure. Le panneton (60) de la clé présente un profil en section qui s'insère dans l'entrée de clé, et une rainure (61) de profil se déployant sur la longueur du panneton. La serrure comprend un mécanisme de blocage comportant au moins un élément de blocage (20) pouvant être déplacé, d'une première position de blocage dans laquelle une première partie saillante (21) du profil de l'élément de blocage se déploie à l'extérieur de la forme en section transversale de la nervure de profil, dans une seconde position de blocage dans laquelle une deuxième partie saillante (22) se déploie à l'extérieur de la forme de la nervure et vient se loger dans un creux (70) du panneton, pour permettre d'insérer complètement une clé correctement découpée.
EP10744024.0A 2009-02-18 2010-02-18 Serrure a barillet et cle combinees comportant un element de blocage dans la serrure Withdrawn EP2398983A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0900208A SE533104C2 (sv) 2009-02-18 2009-02-18 Cylinderlås- och nyckelkombination med ett blockeringselement i låset
PCT/SE2010/050185 WO2010096007A1 (fr) 2009-02-18 2010-02-18 Serrure à barillet et clé combinées comportant un élément de blocage dans la serrure

Publications (2)

Publication Number Publication Date
EP2398983A1 true EP2398983A1 (fr) 2011-12-28
EP2398983A4 EP2398983A4 (fr) 2014-12-24

Family

ID=42283167

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10744024.0A Withdrawn EP2398983A4 (fr) 2009-02-18 2010-02-18 Serrure a barillet et cle combinees comportant un element de blocage dans la serrure

Country Status (4)

Country Link
EP (1) EP2398983A4 (fr)
CA (1) CA2749793C (fr)
SE (1) SE533104C2 (fr)
WO (1) WO2010096007A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4105414A1 (fr) * 2021-06-16 2022-12-21 ASSA ABLOY France SAS Serrure à clé plate

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3603687A1 (de) * 1986-02-06 1987-08-13 Dom Sicherheitstechnik Aus schliesszylinder und zugehoerigem flachschluessel bestehende schliesseinrichtung
WO1994001643A1 (fr) * 1992-07-06 1994-01-20 Widén And Sandh Key Partners Ag Combinaison serrure cylindrique-clef
FR2842236A1 (fr) * 2002-07-10 2004-01-16 Thirard Ets Cylindre pour serrure de surete, ensemble constitue d'un tel cylindre et d'une clef

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH679507A5 (fr) * 1989-12-15 1992-02-28 Bauer Kaba Ag
SE505364C2 (sv) 1993-12-30 1997-08-11 Bo Widen Cylinderlås-nyckelkombination, nyckel, nyckelämne och lås
FI110958B (fi) * 1995-12-11 2003-04-30 Berchtold Ag Lukkolaite ja latta-avain
BE1011912A3 (nl) * 1998-08-28 2000-02-01 Litto Samenstel van draaicilinderslot en sleutel.
DE19859714C1 (de) * 1998-12-23 2000-06-29 Tiefenthal Schlies Systeme Gmb Schließzylinder mit Flachschlüssel

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3603687A1 (de) * 1986-02-06 1987-08-13 Dom Sicherheitstechnik Aus schliesszylinder und zugehoerigem flachschluessel bestehende schliesseinrichtung
WO1994001643A1 (fr) * 1992-07-06 1994-01-20 Widén And Sandh Key Partners Ag Combinaison serrure cylindrique-clef
FR2842236A1 (fr) * 2002-07-10 2004-01-16 Thirard Ets Cylindre pour serrure de surete, ensemble constitue d'un tel cylindre et d'une clef

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2010096007A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4105414A1 (fr) * 2021-06-16 2022-12-21 ASSA ABLOY France SAS Serrure à clé plate
FR3124206A1 (fr) * 2021-06-16 2022-12-23 Assa Abloy France Sas Serrure à clé plate

Also Published As

Publication number Publication date
WO2010096007A1 (fr) 2010-08-26
EP2398983A4 (fr) 2014-12-24
CA2749793C (fr) 2012-10-02
SE0900208A1 (sv) 2010-06-29
CA2749793A1 (fr) 2010-08-26
SE533104C2 (sv) 2010-06-29

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