EP0594985B1 - Serrure à gâchette avec gâchettes rotatives - Google Patents

Serrure à gâchette avec gâchettes rotatives Download PDF

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Publication number
EP0594985B1
EP0594985B1 EP93114186A EP93114186A EP0594985B1 EP 0594985 B1 EP0594985 B1 EP 0594985B1 EP 93114186 A EP93114186 A EP 93114186A EP 93114186 A EP93114186 A EP 93114186A EP 0594985 B1 EP0594985 B1 EP 0594985B1
Authority
EP
European Patent Office
Prior art keywords
tumbler
key
tumblers
point
convexity
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
EP93114186A
Other languages
German (de)
English (en)
Other versions
EP0594985A1 (fr
Inventor
Albert Heinemann
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.)
Theodor Kromer GmbH and Co KG Spezialfabrik fuer Sicherheitsschloesser
Original Assignee
Theodor Kromer GmbH and Co KG Spezialfabrik fuer Sicherheitsschloesser
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 Theodor Kromer GmbH and Co KG Spezialfabrik fuer Sicherheitsschloesser filed Critical Theodor Kromer GmbH and Co KG Spezialfabrik fuer Sicherheitsschloesser
Publication of EP0594985A1 publication Critical patent/EP0594985A1/fr
Application granted granted Critical
Publication of EP0594985B1 publication Critical patent/EP0594985B1/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
    • E05B21/00—Locks with lamelliform tumblers which are not set by the insertion of the key and in which the tumblers do not follow the movement of the bolt e.g. Chubb-locks

Definitions

  • the invention relates to a tumbler lock with a plurality of swivel tumblers mounted on a common tumbler rotation axis and with a beard key which attacks with different beard levels on an approximately arcuate bulge of a swivel tumbler, the bulges being congruent in particular and one adjacent to the entry of the beard step into the bulge Point of attack for the respective, differently long beard level of the key beard is arranged.
  • Such a tumbler lock is known from DE-PS 16 78 021 or DE-PS 19 04 486 for a double-bit key with a corresponding all-round closed recess with two bulges on the swivel tumblers. Due to the pivoting of the swivel tumblers, existing tour channels are arranged on the individual tumblers at different locations on their end faces so that a tour pin or stud of the bolt belonging to the lock can enter these tour channels when it is opened.
  • the invention is therefore based on the object to provide a tumbler lock of the type mentioned, in which the points of attack for the beard steps on the Tumblers do not allow conclusions to be drawn about the length of the beard, not even after a long period of actuation.
  • a cam-like projection is provided as the actuating cam as the point of attack on the respective tumbler at the area immediately adjacent to the entry into the bulge, and that the part of the tumbler adjoining it on the side of the actuating cam facing away from the inlet is also recessed and / or that the key bit on its flank facing the point of attack at least the longer step or steps has such a rounding, recess, bevel or similar deformation that the point of attack of the key bit is shifted from the actually extreme beard length to the center of the key axis.
  • the actuating cams on the recessed tumblers can be practically achieved by removing the previous contact surface except for the actuating cams or by forming a recess. There then remains practically only one such actuating cam for the attack of the key bit, on which then beard steps of different lengths attack each in approximately the same way and thus also in the same place, so that no conclusions can be drawn about the respective length of the beard steps taking effect on the individual tumblers are more possible, even if longer wear occurs or appropriate coloring is carried out.
  • a bevel on the actuating flank of the key bit facilitates interaction with the actuating cam, thus improving the operability of the tumbler lock, which is safer due to an actuating cam on the tumblers.
  • This invention is particularly advantageous when the tumblers have congruent cutouts, be it for simple beard keys or, above all, for double beard keys.
  • the unauthorized user can then neither draw conclusions about the beard gradation of the key by sensing the recesses nor by traces of use, for example, on colored tumblers.
  • the actuating cam is rounded at its most projecting point and in particular also at the transition and entry into the bulge of the tumbler.
  • flanks of all beard levels of the key bit used to pivot the tumblers have a particularly matching one have a convex or spherical cross-sectional shape, a point of greatest cross-sectional thickness of the beard being provided at several, in particular at all beard levels, such that when the lock is opened it acts on the area adjacent to the entry into the bulges at a corresponding point of attack and when pivoting this point of attack rubbing and rolling away touched.
  • An embodiment of the invention of particular importance can be applied to a tumbler lock of the type mentioned at the outset, in which the pivot tumblers each have approximately rectangular, closed recesses, on each of which bulges, in particular congruent bulges, are provided, which are provided by an envelope curve are formed according to DE patent 1,678,021. While a longitudinal axis of the "rectangle" with bulge and actuating cams serves to pivot the tumblers, in particular against gravity, the opposite recess with the beard part of the double-bit wrench acting on it serves to forcibly pivot and force control without the influence of gravity and without the risk of an unwanted pivoting of a tumbler To allow frictional forces against a neighboring tumbler. Such a lock could possibly even be used turned through 180 degrees.
  • the above-mentioned special embodiment of the invention consists in that at least in the direction of movement of the key bit during the opening movement adjacent to the Interface of the circles forming the envelope curve, the bulge corresponding to the envelope curve is further recessed from the envelope curve, so that the beard steps in this area are at a distance from the bulge.
  • the forced control of the recesses is maintained until the tour pin enters the touring channels of the tumblers, i.e. fixes them against further pivoting and then it is not necessary to determine the tumblers by the key itself in the further course.
  • the tumbler is forcibly defined by the respective key bit on the retained envelope curve as a cut-out limitation so that this entry can be made with certainty. Since this area is only very short, it does not allow any conclusions to be drawn about the length of the beard step, even if it is worn or stained and the paint is scraped away.
  • traces of abrasion is also made more difficult, whether after prolonged use or after abrasion of a previously sprayed substance, in particular paint, when the individual tumblers are in contact with one another with friction.
  • a first pivoted tumbler can then take the neighboring tumbler a little way, so that this also obscures an exact point of attack of the associated key bit and in particular such an attack on the actuating cam and on the tumbler bulge opposite the actuating cam.
  • tumbler 3 From a tumbler lock, as is known for example from DE-PS 16 78 021, only part of the bolt 1, the bolt studs or tour pin 2 arranged thereon and a swivel tumbler, hereinafter referred to as tumbler 3, are shown in FIG.
  • the key 4 can also be seen, its shaft 5 being arranged on the end face, from which the differently graded two beard steps 6 and 7 project radially and opposite one another.
  • this recess 10 Approximately in the middle of the tumblers 3 there is a recess 10 in which the double-bit key 4 engages.
  • the basic shape of this recess 10 is a rectangle delimited approximately by lines 101, 102, 103, 104, 105 and 106. Lines 101, 106 and 103, 104 form the long sides and lines 102 and 105 the narrow sides of this rectangle.
  • the key is inserted into the keyhole in the position shown in solid lines in FIGS. 1 and 2, although it is already pivoted by a small angle with respect to the actual insertion position, as a result of which the flank 13 used to pivot the tumblers the key bit 6 and its transition 14 to the top 15 of the inside of the line 101, that is, the actuation point on the tumbler 3 approaches.
  • a cam-like projection is provided as an actuating cam 16 in the area immediately adjacent to the entry into the recess or bulge 11.
  • this embodiment would also be possible with a guard locking that only with a simple key is actuated, in which the lower part of the recess 10 is missing or could be open at the bottom.
  • a closed recess 10 which is important for forced pivoting, is provided for interacting with a double bit. So that the second beard 7 does not leave any traces of wear on the bulge 12, this is recessed next to the point at which the key acc. the dash-dotted representation in Fig.1, 2 and 4 the tumblers 3 after a rotation by about 65 degrees has pivoted so far that the tour pin 2 straight into the tour channel 17 on the front side of the tumbler 3 (Fig.1) or on the turntable 18 (Fig. 2 and 3) can occur.
  • This point at which all steps of the second beard 7 should have an exact contact with the bulge 12 or recess 10 is the point at which the circles forming the envelope curve of the congruent recess 10 intersect or come very close and which in the exemplary embodiment compared to the actual bulge 12, which is recessed somewhat more with respect to the envelope curve, than control cam 19 projecting inwards.
  • the respective step of the key bit 7 can position the tumbler 3 exactly when the key has to align the tour channel 17 precisely with the tour pin 2 after a rotation of about 65 degrees, so that this tour pin 2 in this pivoted position can enter the tour channel 17.
  • the beard 7 can have so much play with respect to the tumblers 3 that there is no longer any appreciable or trace friction.
  • the actuating cam 16 is rounded at its most projecting point and also at the transition and entry into the recess or bulge 11 of the tumbler, so that the flank 13 of the key bit 6 largely rolls on this actuating cam 16 during the pivoting movement and can thereby largely prevent wear. At the same time it is achieved that the transition 14 and the upper side 15 can slide well into the bulge 11, as is indicated by the dash-dotted representation in FIG.
  • a counter toothing 22 of the rotatable disk 18 engages on an end toothing 21 of the tumblers 3, which then has the tour channel 17 for cooperation with the tour pin 2.
  • the function and mode of operation as well as, above all, the design of the recess 10 on the tumbler 3 is completely the same as that shown in FIG. 1.
  • Such locks according to Figure 2 allow, after a certain time to change the assignment of the gradation of a key to the lock by moving the teeth apart, then inserting the new key and pivoting the tumblers accordingly due to their congruent recesses and then bringing the teeth together again. If tour channel 17 is arranged opposite tour pin 2, only the new key now fits.
  • the point of greatest cross-sectional thickness of the beard 6 is provided at this point and coincides with the respectively corresponding point of attack, which corresponds approximately to the point at which the actuating cam 16 is arranged in the exemplary embodiment according to FIGS. 1 to 3.
  • the projecting shape of the cam 16 is replaced by an analogous projecting or curved shape of the key bit flank 13.
  • a control cam 19 is also provided on the opposite bulge 12. In the manner already described, this prevents conclusions about the length of the beard steps of the opposite key bit 7 in the region of the bulge 12.
  • the recesses 10 of the tumblers can also be used when using a spherical actuating key bit be congruent and therefore also exclude conclusions about the beard levels.
  • the tumbler lock with swivel tumblers 3 and a beard key 4 has matching points of attack for several beard levels on the individual tumblers 3 in that an actuating cam projects on the respective tumbler, particularly near the entrance to a bulge 11, and / or the flank 13 of the key bit that acts on the point of attack 6 is rounded or convexly rounded and thus rolls off at this corresponding point of attack when the key is turned, regardless of how long the individual beard step extends from this common point of contact in the radial direction.

Landscapes

  • Adornments (AREA)
  • Lock And Its Accessories (AREA)
  • Toys (AREA)
  • Table Devices Or Equipment (AREA)
  • Rotary Pumps (AREA)

Claims (8)

  1. Serrure à gorges comprenant plusieurs gorges pivotantes (3) montées sur un pivot commun (9) et comprenant une clef à panneton (4) dont les divers crans (8) du panneton viennent chacun en prise avec un contour creux (11) à peu près en forme d'arc d'une gorge pivotante (3), cependant que les contours creux (11) sont en particulier superposables, et qu'un endroit de venue en prise destiné au cran correspondant (8) du panneton (6) de la clef, lequel présente une longueur qui lui est propre, est ménagé dans le contour creux (11) au voisinage de l'entrée du cran (8) du panneton, caractérisée par le fait qu'une partie en saillie analogue à un ergot et servant d'ergot d'actionnement (16) est prévue comme endroit de venue en prise sur la gorge correspondante (3) dans la région immédiatement voisine de l'entrée dans le contour creux (11), et par le fait que la partie de la gorge (3) qui se raccorde à cette partie en saillie sur le côté de cet ergot d'actionnement (16) qui est opposé à l'entrée est également évidée, et/ou par le fait que le panneton (6) de la clef présente, sur son flanc (13) qui est tourné vers l'endroit de venue en prise, et au moins pour le cran ou les crans (8) dont la longueur est la plus importante, un arrondi, un évidement, un biseau ou une déformation similaire qui est telle que l'endroit de venue en prise du panneton (6) de la clef soit déplacé de ce fait vers le centre de la tige de la clef depuis la partie du panneton qui est en réalité située le plus à l'extérieur.
  2. Serrure à gorges selon la revendication 1, caractérisée par le fait que les gorges présentent des évidements superposables (10) qui sont pourvus de contours creux (11) coincidents.
  3. Serrure à gorges selon la revendication 1 ou 2, caractérisée par le fait que l'ergot d'actionnement (16) est arrondi à son endroit qui est le plus en saillie, et en particulier aussi sur sa zone de transition vers le contour creux (11) de la gorge correspondante (3) et sur sa zone d'entrée dans celui-ci.
  4. Serrure à gorges selon l'une des revendications 1 à 3, caractérisée par le fait que les flancs (13) de tous les crans (8) du panneton (6) de la clef qui servent à faire pivoter les gorges (3) présentent en section transversale une forme convexe ou en boule, et en particulier coïncidente, cependant qu'un endroit du panneton (6) dont l'épaisseur en section transversale est la plus importante est prévu sur plusieurs crans (8) du panneton, et en particulier sur tous, d'une manière telle que, lors de l'ouverture de la serrure, il agisse sur la zone voisine de l'entrée dans les contours creux (11) en un endroit de venue en prise à peu près coïncident, et que, lors du pivotement, il soit en contact en frottement et en roulement avec cet endroit de venue en prise.
  5. Serrure à gorges selon l'une des revendications 1 à 4, dans laquelle les gorges pivotantes présentent chacune des évidements fermés à peu près rectangulaires sur chacun desquels sont prévus, sur leurs côtés opposés entre eux, des contours creux (11, 12), et en particulier des évidements (10) et des contours creux (11, 12) qui sont superposables, caractérisée par le fait que le deuxième contour creux (12) est évidé vers l'extérieur dans le sens radial dans la direction de déplacement du panneton (7) de la clef qui agit sur celui-ci, au voisinage d'un point d'intersection des cercles qui forment la courbe enveloppante du contour creux (12) et par rapport à cette courbe enveloppante, et ce, d'une manière telle que les pannetons (7) de la clef soient éloignés du contour creux (12) dans cette zone.
  6. Serrure à gorges selon l'une des revendications 1 à 5, caractérisée par le fait que le contour creux (12) est évidé, par rapport à la courbe enveloppante qui le forme, des deux côtés d'un endroit de commande formé par les points d'intersection des cercles qui forment la courbe enveloppante, de sorte que cet endroit de commande, pour servir d'ergot de commande (19), fait saillie vers l'intérieur par rapport au contour creux (12) dont le tracé est décalé par rapport à une courbe enveloppante.
  7. Serrure à gorges selon l'une des revendications précédentes, caractérisée par le fait qu'une transition progressive (20) vers l'ergot de commande (19) est prévue depuis le tracé du contour creux (12), et que, le cas échéant, l'ergot de commande (19) est arrondi d'une manière convexe sur sa zone qui est le plus en saillie.
  8. Serrure à gorges selon l'une des revendications précédentes, caractérisée par le fait que les gorges (3) présentent des ergots d'actionnement (16), et que la clef présente un flanc (13) arrondi en boule sur son panneton (6) qui sert au pivotement des gorges (3).
EP93114186A 1992-10-27 1993-09-04 Serrure à gâchette avec gâchettes rotatives Expired - Lifetime EP0594985B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4236201A DE4236201C1 (de) 1992-10-27 1992-10-27 Zuhaltungsschloß mit Schwenkzuhaltungen
DE4236201 1992-10-27

Publications (2)

Publication Number Publication Date
EP0594985A1 EP0594985A1 (fr) 1994-05-04
EP0594985B1 true EP0594985B1 (fr) 1996-01-03

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EP93114186A Expired - Lifetime EP0594985B1 (fr) 1992-10-27 1993-09-04 Serrure à gâchette avec gâchettes rotatives

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EP (1) EP0594985B1 (fr)
AT (1) ATE132565T1 (fr)
DE (2) DE4236201C1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE76190C (de) * F. MANN und H. H. AKERS in Hornsey Rise, Grfsch. Middlesex, England Schlofs mit Chubbzuhaltungen und Ringstufen am Schlüsselschaft
DE1061226B (de) * 1955-04-21 1959-07-09 Theodor Kromer Schluessel, insbesondere Zweibartschluessel, fuer Protektorschloesser und aehnliche Drehzylinderschloesser
DE1678021B2 (de) * 1967-07-05 1973-05-17 Theodor Kromer KG Spezialfabnk fur Sicherheitsschlösser, 7800 Freiburg Zuhaltungsschloss mit einem doppelbartschluessel
DE1904486C3 (de) * 1969-01-30 1978-05-24 Theodor Kromer Kg Spezialfabrik Fuer Sicherheitsschloesser, 7800 Freiburg Mittels zweier, in einen Schlüsselkanal einsteckbarer, unterschiedlicher Doppelbartschlüssel schließbares SchwenkzuhaltungsschloB
GB2153425B (en) * 1984-01-23 1987-12-16 Enviroment Secretary Of State Lever lock

Also Published As

Publication number Publication date
DE59301321D1 (de) 1996-02-15
EP0594985A1 (fr) 1994-05-04
ATE132565T1 (de) 1996-01-15
DE4236201C1 (de) 1994-04-28

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