EP0202949A2 - Schloss und Schlüssel - Google Patents

Schloss und Schlüssel Download PDF

Info

Publication number
EP0202949A2
EP0202949A2 EP86303931A EP86303931A EP0202949A2 EP 0202949 A2 EP0202949 A2 EP 0202949A2 EP 86303931 A EP86303931 A EP 86303931A EP 86303931 A EP86303931 A EP 86303931A EP 0202949 A2 EP0202949 A2 EP 0202949A2
Authority
EP
European Patent Office
Prior art keywords
keyway
key
bore
blade
locking device
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
EP86303931A
Other languages
English (en)
French (fr)
Other versions
EP0202949B1 (de
EP0202949A3 (en
Inventor
Herbert Philipp Häuser
Peter Kremer
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 AT86303931T priority Critical patent/ATE64980T1/de
Publication of EP0202949A2 publication Critical patent/EP0202949A2/de
Publication of EP0202949A3 publication Critical patent/EP0202949A3/en
Application granted granted Critical
Publication of EP0202949B1 publication Critical patent/EP0202949B1/de
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
    • E05B27/0078—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
    • E05B35/00—Locks for use with special keys or a plurality of keys ; keys therefor
    • E05B35/003—Locks for use with special keys or a plurality of keys ; keys therefor for keys with movable bits

Definitions

  • This invention is concerned with locking devices and keys for use therewith.
  • a locking device comprising a lock of the cylinder type wherein the cylinder has a housing in which a cylinder plug is rotatably accommodated, together with a plurality of tumblers, the plug having a profiled keyway into which said tumblers extend in the rest condition of the cylinder, wherein an additional tumbler is provided which is mounted for sliding movement in a bore the longitudinal axis of which is parallel to but offset from the longitudinal central plane of the keyway, and further wherein an abutment is also provided in the keyway in the region of the additional tumbler but spaced therefrom, the locking device being adapted for use with a key having a profiled blade corresponding to the keyway and having mounted in the blade, for sliding transverse movement therein, a control element which is urged by engagement of one end portion thereof with the abutment into a condition in which an opposite end portion thereof projects outwardly from the key blade, said projecting end portion serving to operate the additional tumbler.
  • the additional tumbler (in fact in this case there are two) is movable in its bore through a distance which cannot exceed the heightwise dimension of the control element of the key and indeed in the particular case is movable through a stroke which is substantially smaller than such dimension.
  • some form of camming surface or run-up slope has to be provided on the control member and clearly the heightwise distance over which such run-up slope extends cannot exceed the overall height of the control element. What is more, the run-up slope may not exceed a certain angle of inclination if jamming of the key during insertion is to be avoided.
  • a key. comprising a longitudinal groove along one wide face of the key blade.
  • the control element has to be formed as large as possible while the additional tumbler(s) have a diameter as small as possible so as to be accommodated within the lengthwise surface of the control element provided adjacent the run-up slope.
  • To form the additional tumbler thin is disadvantageous in that it affords a weak locking function.
  • this object is resolved, in a locking device as set out in the first paragraph above, in that the end portion, engageable by the control element of the key, of the additional tumbler is elongated in a direction extending lengthwise of the keyway and has a run-up slope extending in said direction. It will be appreciated that, by so dimensioning the end portion of the additional tumbler, the additional tumbler can be displaced through a larger distance than was previously the case and further a tumbler of a much more substantial construction than was previously the case can be afforded.
  • the additional tumbler is located in the floor of the keyway, so that the construction of the keyway becomes relatively complicated in terms of its machining and would be especially so e.g. in the case of a so-called double entry cylinder.
  • the bore in which the additional tumbler is accommodated opens into a side wall of the keyway and the abutment is provided on an opposite wall of the keyway, the run-up slope being disposed in the open region of the bore, when the additional tumbler is in its rest condition. A more convenient construction is afforded.
  • the requirements for the shaping of the control element of the key are rendered less demanding by this arrangement, in particular since in the earlier case the control element, though moved transversely of the key blank by the abutment, nevertheless was required to operate tumblers lying in the floor of the keyway, in the present case the arrangement of the bore opening into the side wall enables the transversely moved control element to act directly on the additional tumbler, the run-up slope of which is positioned at or substantially at the same level as the abutment.
  • abutment was so arranged along the keyway in relation to the run-up slope (in this case provided on the control element) that the control element was caused to project outwardly by its engagement with the abutment prior to engagement of the run-up slope.
  • a recess is provided in said side wall and runs into the open region of the bore and is arranged opposite the abutment for receiving the outwardly projecting end portion of the control element of the key prior to its engaging the run-up slope.
  • the additional tumbler has a stem and an enlarged head which provides the elongated end portion thereof.
  • the lengthwise and heightwise dimensions of the head determine the heightwise dimension of the run-up slope, so that by varying the dimensions of the head the dimension of the slope can also be varied, within only the constraints set down by the overall dimensions of the cylinder and the arrangement of tumblers therein.
  • a further advantage of the provision of a headed additional tumbler resides in that the additional tumbler can be held against rotation by the head being offset in relation to the axis of the stem and the stem being mounted for sliding movement in a bore portion in the cylinder plug, the axis of which bore portion is offset in relation to that of a further bore portion in which the head is accommodated for sliding movement. In this way, in a straight forward manner the orientation of the run-up slope is fixed. Furthermore, a constructional advantage is achieved in that the side of the head of the additional tumbler is flatted adjacent the run-up slope, the flatted surface thereof lying flush with the side wall of the keyway.
  • the keyway is rendered complicated by the need to effect transverse movement of the control element.
  • the abutment is provided by an insert set in the cylinder plug and projecting into the keyway thereof, the projecting portion being formed with an inclined slope in the direction of key insertion.
  • a further advantage of the locking device in accordance with the present invention can also be achieved by the provision of a further abutment in the cylinder plug by which the rest position of the additional tumbler is determined. Furthermore for cooperating with such further abutment conveniently a projection is formed on the additional tumbler, extending beyond the run-up slope thereof. By the provision of the further abutment and the projection, the initial position of the additional tumbler can readily be determined in relation to the position of the control element of the key when inserted in the keyway.
  • a significant advantage of the key of the present invention resides in that, because the control element is in the form of a relatively small pin, the handling of the key by the user becomes more comodious and in particular the key does not exhibit projections of the type of the key of the earlier case, which projections are likely to snag in the users pocket or with the users apparel when being carried or handled by the user.
  • the length of the pin does not exceed the transverse dimension of the key blade, it is of course desirable to ensure, without interference from the user, that the pin does not project as the key is being inserted.
  • the entry end of the keyway is provided with lead-in surfaces by which the control element is centralised in the key blade as the key is inserted in the keyway.
  • the present invention also provides a key blank comprising a blade having a longitudinal groove formed therein into which a bore, extending through the transverse width of the blade, opens, in which bore a control element is accommodated for transverse movement such that, when one portion of the element is moved flush with the surface of one side of the blade adjacent the bore, an opposite portion of the element projects outwardly beyond the surface of the other side of the blade adjacent the bore, the bore has a portion of enlarged diameter and the control element is in the form of a pin having a collar freely movable in said portion of enlarged diameter between an end surface of said portion and a retaining ring arranged in the open end of the bore, and further in that the length of the pin does not exceed the overall transverse dimension of the blade but is such that, when the opposite end portion thereof is caused to project outwardly as aforesaid, it extends beyond the outside dimension of the key blade.
  • the lock cylinder has a profiled lock cylinder housing 1, in which a cylinder plug 3 is rotatably mounted in a longitudinal bore 2.
  • the plug 3 is non-rotatably secured to a thrower ring 5 having a thrower 4.
  • lock cylinder housing 1 and the cylinder plug 3 are provided, in the longitudinal central plane of the lock cylinder, bores 6,7 which lie in alignment with one another and which receive tumblers 8 comprising plug pins 8' and housing pins (or drivers) 8".
  • the housing pins are urged outwardly towards the pins 8' by compression springs 9.
  • a keyway 10 of profiled cross-section extends in the plug 3 in the axial longitudinal direction thereof.
  • the keyway 10 is adapted to the cross-section of the key blade 11 of a flat key 12.
  • the one narrow edge of the key blade 11 is provided with a row of V-cuts 13 of different depths, which cooperate with the tumbler pins 8 and operate them, when the key is inserted, so that the joint line between the plug pins 8' and housing pins 8" lies at the level of the plug rotation line F (see Fig. 6).
  • the key blade 11 has profiled longitudinal grooves on both wide sides, corresponding to the transverse profiling of the keyway.
  • a counter-sunk recess 15 extends from the bottom of a central one of the profiled longitudinal grooves 14, which is wider than the other grooves, and extends almost up to the opposite wide side of the key.
  • At the bottom 16 of the countersink is a central bore 17 through which the control element 18 in the form of a pin extends.
  • a retaining ring 19 is disposed at the open end of the recess 15 and serves to guide the control pin 18.
  • the control pin 18 is restrained in the transverse direction by a central collar 20, which fixedly projects from the control element and is freely movable between the annular area of countersink bottom 16 and the retaining ring 19. The latter is pressed into the key blade and thus ensures the non-releasable mounting of the control element 18.
  • the length of the control element 18 corresponds to the transverse dimension, i.e. thickness of the key blade 11 (see especially Fig
  • an additional tumbler 21 which is movable in a bore 22 opening into one side of the keyway 10 and extending parallel to the key insertion plane.
  • the additional tumbler 21 comprises a stem 23 and head 24, the latter being axially offset from the stem 23.
  • the centre point M of the stem 23 is thus at a greater distance from the keyway than the centre point M 1 of the head 24.
  • the additional tumbler 21 is secured against rotation by guiding the stem 23 in a bore section 22', which is axially offset from a bore section 22'' of larger cross-section in which the head 24 is movable.
  • the head is flatted on the side facing the keyway 10 so as to lie flush with the side wall 10' of the keyway.
  • a run-up slope 26 Adjacent the flatted surface is formed a run-up slope 26 which extends up to a side wall portion 25 of the head.
  • the run-up slope 26 increases in the direction of key insertion.
  • a projection or spigot 34 projects from the head 24 in opposed relationship with the stem 23 and cooperates with a stroke-limiting abutment in the form of a pin 35 in-set in the outer surface of the cylinder plug 3.
  • the cylinder plug 3 has a groove 36 intersecting the bore 22 and running in the longitudinal direction of the cylinder plug 3, the depth of the groove corresponding approximately to the diameter of the stroke-limiting pin 35. Lateral recesses 37 in the groove 36 ensure the correct location of the stroke-limiting pin 35.
  • the stem 23 of the additional tumbler 21 cooperates with a housing tumbler 29, which is guided in a bore 28 of the lock cylinder housing 1.
  • the tumbler 29 is secured against rotation as a consequence of its being offset from the longitudinal central plane of the lock cylinder.
  • This tumbler 29 is also acted upon by a compression spring (not shown) so that, when the key is withdrawn, the position as shown in Fig. 3 pertains, wherein the tumbler 29 projects with its end facing the cylinder plug into the bore section 22', brings the tumbler 21 into abutment with the stroke-limiting pin 35, and provided additional security against rotation.
  • a slot 30 which lies transversely of the keyway and into which an abutment in the form of an insert 31 is fixedly inserted.
  • the end of this insert 31 projects into the keyway beyond the corresponding side wall 10" of the keyway.
  • the edge projecting into the keyway 10 provides a surface 32 for actuating the control element 18, the side of said surface 32 facing the keyway insertion direction forming a roof-shaped slope 33. This surface lies at the level of the profiled longitudinal groove 14 of the key and projects thereinto when the key is inserted.
  • the distance x between the side wall 25 of the head 24 and the opposite surface 32 of the insert 31 corresponds to the amount y of the dimension extending transversely of the key 12.
  • the entry area of the keyway 10 is provided with funnel-shaped tapering guide surfaces 34 which guide the control element 18, if projecting, into the keyway.
  • the mode of operation is as follows: When the flat key 12 is inserted into the keyway 10, its V-cuts 13 operate the tumbler pins 8.
  • the control element 18 is guided through the keyway (see chain dotted illustration in Fig. 5).
  • the control element 18 Upon engagement of one end portion of the pin 18 with the roof-shaped slope 33 of the insert 31, the control element 18 is shifted transversely in the direction of the run-up slope 26 of the additional tumbler 21.
  • the recess 27 disposed in front of slope 33 receives the opposite end portion of the pin 18 during this transverse motion, so that the control element 18 reaches the chain-dotted position in accordance with Fig. 4, but at this stage no shifting of the additional tumbler 21 has taken place. This position corresponds to the end position of the transverse displacement of the control element 18.
  • the diameter of the projecting end portion of the pin 18 is substantially less than the lengthwise dimension of the run-up 26 formed on the additional tumbler 21 (see e.g. Fig. 7), while the amount by which said projecting end portion projects beyond the wide face of the key 12 is not greater than the transverse dimension of said run-up slope 26 (see e.g. Fig. 6) .
  • the key 12 is made from a key blank exhibiting the longitudinal grooves and the bore with the pin 18 held captive therein as aforesaid.

Landscapes

  • Lock And Its Accessories (AREA)
  • Transmitters (AREA)
EP86303931A 1985-05-24 1986-05-23 Schloss und Schlüssel Expired - Lifetime EP0202949B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86303931T ATE64980T1 (de) 1985-05-24 1986-05-23 Schloss und schluessel.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3518743 1985-05-24
DE19853518743 DE3518743A1 (de) 1985-05-24 1985-05-24 Aus schliesszylinder und flachschluessel bestehende schliesseinrichtung

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP90123201.7 Division-Into 1986-05-23

Publications (3)

Publication Number Publication Date
EP0202949A2 true EP0202949A2 (de) 1986-11-26
EP0202949A3 EP0202949A3 (en) 1988-01-20
EP0202949B1 EP0202949B1 (de) 1991-07-03

Family

ID=6271573

Family Applications (2)

Application Number Title Priority Date Filing Date
EP90123201A Withdrawn EP0431550A1 (de) 1985-05-24 1986-05-23 Schlüssel
EP86303931A Expired - Lifetime EP0202949B1 (de) 1985-05-24 1986-05-23 Schloss und Schlüssel

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP90123201A Withdrawn EP0431550A1 (de) 1985-05-24 1986-05-23 Schlüssel

Country Status (4)

Country Link
EP (2) EP0431550A1 (de)
AT (1) ATE64980T1 (de)
DE (2) DE3518743A1 (de)
ES (1) ES294528Y (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0237172A2 (de) * 1986-02-06 1987-09-16 DOM-Sicherheitstechnik GmbH & Co. KG Aus Schliesszylinder und assoziiertem flachen Schlüssel bestehende Verschlusseinrichtung
GB2230555A (en) * 1989-03-31 1990-10-24 Folger Adam Co Cylinder locks
EP0431550A1 (de) 1985-05-24 1991-06-12 DOM-Sicherheitstechnik GmbH & Co. KG Schlüssel
FR2656027A1 (fr) * 1989-12-15 1991-06-21 Bauer Kaba Ag Barillet de serrure et cle ainsi qu'ebauche de cle possedant un element de surete determine l'un en fonction de l'autre.
EP0436496A1 (de) * 1990-01-05 1991-07-10 BKS GmbH Schlüssel für Schliesszylinder, insbesondere von Schliessanlagen
US5079936A (en) * 1989-03-31 1992-01-14 Folger Adam Company High security cylinder lock
EP0621384A1 (de) * 1993-03-30 1994-10-26 Ernst Keller Schlüssel und Drehschliesszylinder für ein Sicherheitsschloss
WO2021067837A1 (en) * 2019-10-03 2021-04-08 Assa Abloy High Security Group Inc. Key blank with movable element, corresponding key and corresponding lock plug and lock assembly

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL104349A (en) * 1993-01-08 1997-01-10 Mul T Lock Ltd Locking apparatus
FR2704893B1 (fr) * 1993-05-05 1995-08-11 Tesa Serrure de sûreté et clé plate pour une telle serrure.
AT1147U1 (de) * 1996-01-10 1996-11-25 Grundmann Schliesstechnik Schliesszylinder und bzw. oder flachschlüssel
DE19607581C2 (de) * 1996-02-29 2000-03-23 Schliesanlagen Gmbh Pfaffenhai Schließvorrichtung
ES2138488B1 (es) * 1996-04-18 2000-05-16 Talleres Escoriaza Sa Sistema de llave irreproducible y cilindro de combinacion para la misma.
US6257033B1 (en) * 1999-03-08 2001-07-10 Moshe Dolev Cylinder lock with rotatable pins
DE10058590C1 (de) * 2000-11-25 2002-07-25 Dom Sicherheitstechnik Schlüssel und zugehöriger Schließzylinder
ITMI20020045A1 (it) * 2002-01-11 2003-07-11 Mg Serrature S P A Dispositivo di chiusura e procedimento di sbolccaggio ad elevata sicurezza
DE10324205B3 (de) * 2003-05-28 2004-10-21 Dom-Sicherheitstechnik Gmbh & Co. Kg Schließzylinder mit Schlüssel
US6983630B2 (en) 2003-07-09 2006-01-10 Kaba Ilco Corp. Programmable cylinder lock system
DE102006000122A1 (de) 2006-03-17 2007-09-20 Aug. Winkhaus Gmbh & Co. Kg Schlüssel für einen Schließzylinder und Schließzylinder für einen solchen Schlüssel
WO2008135968A1 (en) 2007-05-02 2008-11-13 Ramot At Tel Aviv University Ltd. Methods and apparatus for reduction of aerodynamic drag
ITBO20120662A1 (it) 2012-12-10 2014-06-11 Filippo Bastianini Serratura con ingegno a dischi riprogrammabile meccanicamente e chiave per la stessa
ITBO20130122A1 (it) 2013-03-22 2014-09-23 Filippo Bastianini Serratura di sicurezza e chiave per la stessa
WO2015001559A1 (en) * 2013-07-03 2015-01-08 Smarter Place Technologies Ltd. Key blank and lock
WO2015051114A1 (en) * 2013-10-03 2015-04-09 Medeco Security Locks, Inc. Cylinder lock with internal slider and key therefore
DE102014005431B4 (de) * 2014-04-08 2016-10-27 Assa Abloy Sicherheitstechnik Gmbh Schloss-Schlüssel-System
DE102016102288A1 (de) 2016-02-10 2017-08-10 Dom Sicherheitstechnik Gmbh & Co. Kg Schlüssel für einen Schließzylinder, Schließzylinder und Schließvorrichtung
IT201700122954A1 (it) * 2017-10-30 2019-04-30 Fabio Visentin Cilindro radiale a doppia molla
FI130769B1 (en) * 2023-03-02 2024-03-07 Abloy Oy Cylinder lock and a key combination

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2492872A1 (fr) * 1980-08-13 1982-04-30 Vachette Sa Cle a poussoir incorpore et barillet de surete utilisant ladite cle

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2947402A1 (de) * 1979-11-24 1981-05-27 DOM-Sicherheitstechnik GmbH & Co KG, 5040 Brühl Flachschluessel fuer zylinderschloss
AT385077B (de) * 1983-06-30 1988-02-10 Grundmann Gmbh Geb Schluessel-schlosskombination auf zylinderschlossbasis
DE3518743A1 (de) 1985-05-24 1986-11-27 DOM-Sicherheitstechnik GmbH & Co KG, 5040 Brühl Aus schliesszylinder und flachschluessel bestehende schliesseinrichtung

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2492872A1 (fr) * 1980-08-13 1982-04-30 Vachette Sa Cle a poussoir incorpore et barillet de surete utilisant ladite cle

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0431550A1 (de) 1985-05-24 1991-06-12 DOM-Sicherheitstechnik GmbH & Co. KG Schlüssel
EP0237172A3 (en) * 1986-02-06 1988-01-07 Dom-Sicherheitstechnik Gmbh & Co. Kg Locking device consisting of a locking cylinder and associated flat key
EP0237172A2 (de) * 1986-02-06 1987-09-16 DOM-Sicherheitstechnik GmbH & Co. KG Aus Schliesszylinder und assoziiertem flachen Schlüssel bestehende Verschlusseinrichtung
US5079936A (en) * 1989-03-31 1992-01-14 Folger Adam Company High security cylinder lock
GB2230555A (en) * 1989-03-31 1990-10-24 Folger Adam Co Cylinder locks
GB2230555B (en) * 1989-03-31 1993-08-11 Folger Adam Co Cylinder locks
FR2656027A1 (fr) * 1989-12-15 1991-06-21 Bauer Kaba Ag Barillet de serrure et cle ainsi qu'ebauche de cle possedant un element de surete determine l'un en fonction de l'autre.
BE1003468A5 (fr) * 1989-12-15 1992-03-31 Bauer Kaba Ag Cylindre de fermeture et clef ainsi qu'ebauche de clef avec element de securite coordonne.
US5438857A (en) * 1989-12-15 1995-08-08 Bauer Kaba Ag Lock cylinder and key as well as key blank with matched security device
EP0436496A1 (de) * 1990-01-05 1991-07-10 BKS GmbH Schlüssel für Schliesszylinder, insbesondere von Schliessanlagen
EP0621384A1 (de) * 1993-03-30 1994-10-26 Ernst Keller Schlüssel und Drehschliesszylinder für ein Sicherheitsschloss
US5457974A (en) * 1993-03-30 1995-10-17 Keller; Ernst Key and rotary locking cylinder for a safety lock
WO2021067837A1 (en) * 2019-10-03 2021-04-08 Assa Abloy High Security Group Inc. Key blank with movable element, corresponding key and corresponding lock plug and lock assembly
US11280111B2 (en) 2019-10-03 2022-03-22 Assa Abloy High Security Group Inc. Operating a lock cylinder with multiple, supplemental locking elements
US11624206B2 (en) 2019-10-03 2023-04-11 Assa Abloy High Security Group Inc. Lock cylinder and key with multiple, supplemental locking elements

Also Published As

Publication number Publication date
DE3518743C2 (de) 1987-08-27
EP0202949B1 (de) 1991-07-03
ATE64980T1 (de) 1991-07-15
EP0202949A3 (en) 1988-01-20
EP0431550A1 (de) 1991-06-12
DE3680027D1 (de) 1991-08-08
ES294528Y (es) 1987-08-16
ES294528U (es) 1987-01-01
DE3518743A1 (de) 1986-11-27

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