EP1621701B1 - Ebauche de clé plate - Google Patents

Ebauche de clé plate Download PDF

Info

Publication number
EP1621701B1
EP1621701B1 EP05106952A EP05106952A EP1621701B1 EP 1621701 B1 EP1621701 B1 EP 1621701B1 EP 05106952 A EP05106952 A EP 05106952A EP 05106952 A EP05106952 A EP 05106952A EP 1621701 B1 EP1621701 B1 EP 1621701B1
Authority
EP
European Patent Office
Prior art keywords
flat
key blank
flat key
key
grooves
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.)
Not-in-force
Application number
EP05106952A
Other languages
German (de)
English (en)
Other versions
EP1621701A2 (fr
EP1621701A3 (fr
Inventor
Markus Kornhofer
Heinz Navratil
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.)
Kaba GmbH
Original Assignee
Kaba GmbH Austria
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 Kaba GmbH Austria filed Critical Kaba GmbH Austria
Publication of EP1621701A2 publication Critical patent/EP1621701A2/fr
Publication of EP1621701A3 publication Critical patent/EP1621701A3/fr
Application granted granted Critical
Publication of EP1621701B1 publication Critical patent/EP1621701B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • E05B19/0029—Key profiles characterized by varying cross-sections of different keys within a lock system

Definitions

  • the present invention relates to a flat key blank having substantially planar, approximately parallel flat sides.
  • a key which has approximately parallel flat sides, with a guide profile overlapping in the middle region of the key cross-section and with regions which extend in the direction of the key-chest and the key-back and can be used for variation profiles. These areas offer space for varying grooves or ribs and serve to increase copy security or to set up locking hierarchies within a locking system.
  • the cylinder core of the lock cylinder is secured against twisting when the key is withdrawn with cylindrical pins that can be moved in holes.
  • the toothing is needed so that when inserting the key in the cylinder core, the cylinder pins along the dividing plane between the lock cylinder rotatably arranged in the cylinder core and the core hole in the lock cylinder are aligned.
  • the invention aims to overcome this drawback and to provide a flat key blank in which the described required targeted surface treatment after grooving and serration milling is no longer necessary.
  • a key blank of the type described above according to the invention that in the flat sides in the intersection of the Nutrichflanken predefined grooves with the flat sides in the axial direction grooves are milled, which has a channel width between 0.1 mm and 0.3 mm and a channel depth between 0.05 mm and 0.2 mm, preferably about 0.1 mm.
  • Such trained key blank has the advantage that caused by the grooving and Zahnungsfräsen, bothering when inserted into the cylinder core burrs can not arise at all, since the necessary material on the key blank used is no longer available.
  • the flat key on its other surface on a particularly high dimensional stability, since a subsequent brushing or sandblasting can be omitted after milling.
  • the grooves have a semicircular cross section, trapezoidal or rectangular cross section.
  • the trapezoidal groove has the advantage that a wider channel is formed by the existing Riefengrund and manufacturing tolerances during Zahnungsfräsen no unwanted burrs arise.
  • intersection regions of the flat sides with the Riefenflanken and the Verschneidungs Kunststoffe the Riefenflanken with the Riefengrund each have a radius.
  • the flat key produced with such a key blank in the region of the delineations of the groove side flanks with the flat sides of the flat key when viewing the key cross-section obtains completely rounded contours.
  • FIG. 1 shows a cross section of an embodiment according to the invention of a key blank
  • Fig. 2 a cross section of a flat key, in its manufacture a key blank according to Fig. 1 has been used
  • Fig. 3 a side view of a flat key
  • Fig. 4 a detail of a ridge according to Fig. 1 and Fig. 5 a variant too Fig. 4 wherein the groove has a trapezoidal cross-section.
  • a flat key 1 after Fig. 2 comprises in the central region at the two approximately parallel flat sides 2, 2 'guide grooves 3, 3'.
  • the areas above in the direction of the key back 8 and below in the direction of the key-chest 9 are available for further guide grooves 4, 4 'and variation grooves 10, 11.
  • Variationsnuten 11 is actually executed on the flat key 1 grooves, the Variationsnuten 10 symbolize only possible, not executed grooves.
  • the grooves 6 have a semicircular cross section, wherein the diameter corresponds to the desired channel width.
  • Fig. 1 shows a key blank 7 according to the invention with already on the flat sides 2, 2 'running grooves 6, 6'.
  • the grooves 6, 6 ' are each at the intersection of the Nutrichflanke 5 a possible on the flat key 1 groove 3, 3', 4, 4 ', 10, 11 arranged with the associated flat side 2, 2'.
  • Fig. 4 shows an enlargement of this intersection area.
  • the grooves 6 have the purpose that when milling the key profile or the grooves 3, 3 ', 4, 4', 10, 11 in the flat sides 2, 2 'no unwanted burrs arise (or if they still arise, then lie they within the planned "target contour" of the key and therefore do not bother).
  • the burrs would have a negative effect on the locking comfort of the flat key 1, so that these burrs would have to be removed in any case by mechanical surface treatments such as brushing or sandblasting.
  • a flat key 1 can be inserted particularly easily into a cylinder lock, not shown, or pulled off, when the grooves 6, in addition to the semicircular cross section, merge with a radius into the associated flat side 2, 2 '.
  • Fig. 5 shows a variant too Fig. 4 , wherein the groove 6 'a Trapezoidal cross-section and have the Verschneidungs Suitee the flat side 2 with Riefenflanken 12 and the Verschneidungs Kunststoffe the Riefenflanken 12 with the Riefenground 13 each have a radius.

Landscapes

  • Adornments (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Claims (6)

  1. Ebauche de clé plate avec pour l'essentiel, des côtés plats, plans et approximativement parallèles, caractérisée en ce que des encoches (6, 6') sont fraisées dans les côtés plats (2, 2') dans la zone d'intersection des flancs de côtés des rainures, de rainures (3, 3', 4, 4', 10, 11) prédéfinies avec les côtés plats (2, 2') dans la direction axiale, les encoches présentant une largeur de canal entre 0,1 mm et 0,3 mm et une profondeur de canal entre 0,05 mm et 0,2 mm, de préférence approximativement 0,1 mm.
  2. Ebauche de clé plate selon la revendication 1, caractérisée en ce que les encoches (6, 6') présentent une section transversale semi-circulaire.
  3. Ebauche de clé plate selon la revendication 1, caractérisée en ce que les encoches (6, 6') présentent une section transversale trapézoïdale.
  4. Ebauche de clé plate selon la revendication 1, caractérisée en ce que les encoches (6, 6') présentant une section transversale rectangulaire.
  5. Ebauche de clé plate selon l'une des revendications 1 à 4, caractérisée en ce que la zone d'intersection des côtés plats (2, 2') avec les flancs d'encoches (12) et la zone d'intersection des flancs d'encoches (12) avec le fond des encoches (13) présentent chacune un rayon.
  6. Ebauche de clé plate selon la revendication 5, caractérisée en ce que le rayon correspond à la longueur du demi-flanc d'encoche (12).
EP05106952A 2004-07-28 2005-07-28 Ebauche de clé plate Not-in-force EP1621701B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0054304U AT7688U1 (de) 2004-07-28 2004-07-28 Flachschlüsselrohling

Publications (3)

Publication Number Publication Date
EP1621701A2 EP1621701A2 (fr) 2006-02-01
EP1621701A3 EP1621701A3 (fr) 2006-05-17
EP1621701B1 true EP1621701B1 (fr) 2008-04-09

Family

ID=34558024

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05106952A Not-in-force EP1621701B1 (fr) 2004-07-28 2005-07-28 Ebauche de clé plate

Country Status (3)

Country Link
EP (1) EP1621701B1 (fr)
AT (2) AT7688U1 (fr)
DE (1) DE502005003613D1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT358951B (de) * 1977-06-23 1980-10-10 Grundmann Gmbh Geb Verschlussanlage auf zylinderschlossbasis
DE4331393C1 (de) * 1993-09-15 1994-10-20 Aumat Varinelli Gmbh Verfahren und Vorrichtung zum Entgraten der gefrästen Einschnitte von Schlüsseln
DE29619827U1 (de) * 1996-11-14 1997-09-18 CKS Türschlösser Handels GmbH, 56410 Montabaur 3 Kanal-Wendeschlüsselsystemzylinder mit Codekarte
EP1257782A1 (fr) * 2000-02-01 2002-11-20 Machine Magic-L.L.C. Appareil et procede de mesure de cles

Also Published As

Publication number Publication date
EP1621701A2 (fr) 2006-02-01
AT7688U1 (de) 2005-07-25
ATE391818T1 (de) 2008-04-15
DE502005003613D1 (de) 2008-05-21
EP1621701A3 (fr) 2006-05-17

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