EP0320516A1 - Schlüssellochverschluss für Schlösser mit einem Schlüssel mit mehreckigem Querschnitt - Google Patents

Schlüssellochverschluss für Schlösser mit einem Schlüssel mit mehreckigem Querschnitt Download PDF

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Publication number
EP0320516A1
EP0320516A1 EP87117028A EP87117028A EP0320516A1 EP 0320516 A1 EP0320516 A1 EP 0320516A1 EP 87117028 A EP87117028 A EP 87117028A EP 87117028 A EP87117028 A EP 87117028A EP 0320516 A1 EP0320516 A1 EP 0320516A1
Authority
EP
European Patent Office
Prior art keywords
locking
housing
key
keyhole
closure according
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Withdrawn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
EP87117028A
Other languages
German (de)
English (en)
French (fr)
Inventor
Oswald Knauer
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0320516A1 publication Critical patent/EP0320516A1/de
Withdrawn legal-status Critical Current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
    • E05B17/00—Accessories in connection with locks
    • E05B17/14—Closures or guards for keyholes
    • E05B17/18—Closures or guards for keyholes shaped as lids or slides
    • E05B17/186—Closures or guards for keyholes shaped as lids or slides sliding

Definitions

  • the invention relates to a keyhole lock for locks with a key with a polygonal cross section and a keyhole corresponding to this cross section.
  • a keyhole lock which uses a displaceable cover plate which can be moved from the locked position into an open position with the aid of a key. The lock acts on a drive element through which the cover plate can be moved between its two end positions.
  • Such a keyhole lock undoubtedly protects a lock from unauthorized access to the sensitive mechanism of the lock cylinder and prevents it from being put out of action by sticking, spraying or foreign bodies.
  • the invention relates to a special design of cylinder locks, such as is the subject of patent application EP 86115737.8, namely a lock with a key with a polygonal cross-section, which ensures a high degree of security, in particular by the extremely large variation of the lock design and -attitude.
  • a keyhole lock In order to better secure such a lock, the security of which many times exceeds that of the conventional cylinder locks, and to protect it against unauthorized manipulation, a keyhole lock must be provided which meets the highest security standards, but which also allows particularly easy handling.
  • this object is achieved in that, in a keyhole lock for locks of the type described in the introduction, a set of locking bolts and a set of locking plates in successive parallel planes perpendicular to the key axis through the inserted key from a locked position with engagement in the keyhole into an open position with the release of the keyhole are slidably mounted against spring force, the respective number of locking bolts and the locking plates corresponds to the number of key surfaces and the direction of movement of the locking bolts and the locking plates is at an angle to each other and each locking bolt with a locking plate via a cam on one Part that engages in a recess on the other part is engaged.
  • the existence of the two different locking elements initially ensures double security, especially because of their existence through their functional linkage via mechanically interlocking parts.
  • This keyhole lock is operated, ie unlocked or unlocked, by the same key that is used to operate the lock cylinder. It is therefore of particular importance that only a single key is required to actuate the lock cylinder, such as the upstream keyhole lock. This facilitates handling as well as increases the safety of such locks.
  • the different direction of movement of the two locking elements associated with the keyhole lock made an intervention practically impossible.
  • each locking bolt is mounted radially to the key axis in a housing guide.
  • This has, for example, a pin which engages in a bore in the locking bolt, in which a compression spring is mounted.
  • each locking bolt is assigned a ramp surface on the key head which interacts with its shoulder, the ramp surfaces having a different shape and / or slope. It follows that this keyhole lock can only be operated with a very special key, which is also in a special position must be introduced. In an angular position other than the predetermined one, the locking bolts would namely not be able to be moved.
  • the keyhole and the cross-section of the key advantageously form a matching, uneven polygon. As a rule, it should be a square, but triangular or polygonal designs are also possible. It is sufficient that only one side of the keyhole and the associated key cross section have a length which is slightly smaller or greater than the other sides, in order to ensure that the key can only be inserted into the lock in a certain position.
  • the invention provides that the locking plates are mounted so that they can be displaced tangentially to the key axis in a common recess in the housing.
  • the two sets of locking elements are thus not only designed differently and arranged differently in the housing, but their mode of operation is also different from one another, which in turn has to do with the mechanical engagement of the two locking elements in one another.
  • the locking plates have a triangular base, and they are slidable with a triangle side of the adjacent triangle side of an adjacent locking plate and with another triangle side of a wall of the housing recess.
  • the apex of the inner triangular angle lies in the key axis, and the sum of these triangular angles of all locking plates is 360 °. It follows from this that these locking plates in their locking position of the keyhole lock the keyhole behind it Cover the locking cylinder completely inaccessible.
  • the triangular side lying against the housing wall expediently has a pin which engages in a housing groove and on which a compression spring arranged in a housing bore acts.
  • the outer locking plate surface has an inclined surface in the region of the inner triangle angle for the key head to slide on. As a result, the displacement movement of the locking plates is particularly advantageously initiated when the keyhole lock is actuated.
  • a particularly advantageous embodiment falling under the general basic principle of the keyhole lock provides four locking plates each in the form of a rectangular triangle, the right angle being on the inside. This training meets the requirement that the four inner triangle angles complement each other to 360 ° and thus completely cover the keyhole in the locked position.
  • This embodiment includes the further feature that the housing plate receiving the locking plate has a square surface with a side length corresponding to the hypotenuse of the triangular locking plate, with a recess receiving the tip of the housing when the locking plate is displaced at each corner of the square of the housing recess hen is.
  • This housing recess also limits the displacement movement of each locking plate, so that unnecessary play is avoided.
  • the opening cross-section of the recess receiving the cam corresponds to the play of movement of both the respective locking bolt and the respective locking plate.
  • This arrangement must therefore be able to take into account two movements of the two locking elements running in different directions. It has proven to be particularly advantageous to make the arrangement such that this recess has catches for receiving the cam in the two end positions. It is expedient to provide the cams on the locking bolts and the recesses on the locking plates. However, the reverse arrangement can just as well take up space. It is within the scope of this general idea that the cams and / or the recesses in the locking bolts or locking plates receiving them have different shapes. This in turn provides the keyhole lock with a special securing element. which prevents illegal manipulation.
  • the keyhole lock according to the invention can be produced particularly simply and inexpensively if the housing is integrated into an outer shield provided with an inner fastening. Possibly. can in a hard metal disc can also be arranged in front of the locking bolt and locking plates.
  • the keyhole lock consists of a housing 1, which, as known per se, does not reproduced internal attachment. Of course, this could also be an outer plate for a lock that is also attached.
  • a keyhole 4 of square cross-section is provided in the plate 3, through which the key 5, of which in Fig. 8 u. 9 only the head 6 is shown, can be inserted.
  • the key 5 also belongs to the cylinder lock, not shown, which is located on the rear housing part 7 of the lock.
  • four locking bolts 8 are arranged at an angular distance of 90 ° in a recess of the housing 1 behind the plate 3. Each locking bolt 8 is accommodated in its own housing recess 9.
  • each of the locking plates 19 has a rectangular bevel Z5, which slopes towards the cathode 24.
  • this triangular locking plate 19 On the hypotenuse 21 of this triangular locking plate 19 sits a pin 26 which engages in a corresponding housing recess 27 and is guided therein. It also protrudes into the housing bore 28, in which a compression spring 29 is mounted. which is supported on the pin 26 and a closure element 30 for this bore 28.
  • the four locking plates 19 are in the position shown in FIG. 4 by the pressure of their springs 29. They complement each other to form a square which practically corresponds to the square of the housing recess 18.
  • the side length 34 of this recess 31 corresponds to the path of the possible displacement of the locking plates 19 in a direction tangential to the axis 16.
  • the locking bolt 8 carries on its surface 37 facing the locking plates 19 a cam 38. This engages in a window-like recess 39 of a locking plate 19. This has two notches 40, 41 in different positions, in which the cam 38 can snap into place.
  • FIG. 4 shows the locking position of a locking position of the locking plate 19
  • FIG. 5 shows the locking position in the open position of the locking plates.
  • the design of the opening cross-section of the window-like recess 39 of each locking plate 19 is such that it prevents the relative movement from cam 38 to recess 39 both during the movement 15 of the locking bolt 8 and the movement 35 of the locking plate 19 from the locking position (FIG. 3 and 4) in the open position (Fig. 5) and vice versa.
  • the key 5 has a square cross section with four key surfaces 44. This design also corresponds to the keyhole 4 and the formation of the recesses 31 in the housing 1, which limit the movement 35 of the locking plates 15, the side length 34 of these recesses 31 corresponds in this case practically half the diagonal of the keyhole 4 in the open position according to FIG. 5.
  • the key head 6 has a ramp surface 45 or 46 of length 48 on each of its surfaces 44. When the key 5 is pushed in in the direction of the arrow 50 in FIG. 9, these ramps 45, 46 meet the projections 17 of the locking bolts 8 and push them back in their guides 9 against the pressure of the springs 12.
  • the key 5 can only be inserted in a certain angular position to such an extent that all of the locking bolts 8 are in a position according to FIG 9 are brought.
  • the key head 6 hits the sloping surfaces 25 of the locking plates 19 in the closed position according to FIG. 4 and pushes them with further movement in the direction of arrow 50 until they reach the open position according to FIG. 5.
  • the hypotenuse 21 of the triangular locking plates 19 slides on the corresponding outer housing wall 22, and in each case one cathode 23 or 24 slides on the adjacent cathode of the adjacent triangular locking plate 19.
  • the tip 32 of the locking plate 19 engages in the corresponding recess 31 of the housing 1 a. Only in this position is the keyhole lock fully opened so that the key 5 can now engage in the lock cylinder behind it, not shown. Due to the cylindrical shape of its shaft, the key 5 can then be turned within the keyhole 4 in order to actuate the locking cylinder. With the reverse movement of the key 5, namely opposite to the direction of the arrow 50 in FIG. 9, the locking plates 19 return one after the other under the action of their compression springs 29 into the starting position according to FIG. 4, and the locking bolts 8 perform the same return movement into the locking position according to FIG . 2 u. 3 out. The keyhole is closed again.
  • the recess 38 'receiving the cam 38 of the locking bolt 8' is arranged on the abutting cathodes 23, 24 of two adjacent locking plates 19 in such a way that they complement each other to form a common recess 39 '.
  • the cam 38 of the locking bolt 8 is either in part 53 of such a recess 39 'or in part 54.

Landscapes

  • Lock And Its Accessories (AREA)
EP87117028A 1986-12-02 1987-11-19 Schlüssellochverschluss für Schlösser mit einem Schlüssel mit mehreckigem Querschnitt Withdrawn EP0320516A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19863641148 DE3641148A1 (de) 1986-12-02 1986-12-02 Schluessellochverschluss

Publications (1)

Publication Number Publication Date
EP0320516A1 true EP0320516A1 (de) 1989-06-21

Family

ID=6315280

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87117028A Withdrawn EP0320516A1 (de) 1986-12-02 1987-11-19 Schlüssellochverschluss für Schlösser mit einem Schlüssel mit mehreckigem Querschnitt

Country Status (2)

Country Link
EP (1) EP0320516A1 (enrdf_load_stackoverflow)
DE (1) DE3641148A1 (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2246162A (en) * 1990-07-18 1992-01-22 Racal Chubb Prod Locks
WO2006119222A3 (en) * 2005-05-03 2007-11-22 Master Lock Co Protective cover for a lock
USD724931S1 (en) 2013-10-02 2015-03-24 Master Lock Company Llc Padlock cover
CN104594714A (zh) * 2015-01-24 2015-05-06 魏祖旭 锁芯孔防护结构

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9314970U1 (de) * 1993-10-02 1995-02-09 Knauer, Helga, 91054 Erlangen Schlüssellochverschluß für Schlösser mit einem Schlüssel mit mehreckigem Durchschnitt
DE19606338A1 (de) * 1996-02-21 1997-11-13 Klaus Haesner Schaltungsanordnung zur Anzeige des Schaltzustandes von Öffnungsmeldern
FR3020826B1 (fr) * 2014-05-07 2018-08-31 Parkeon Dispositif d'obturation de l'acces d'une cle a un barillet d'une serrure, et serrure comprenant un tel dispositif

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR659496A (fr) * 1927-12-19 1929-06-28 Bricard Ancienne Maison Sterli Cache-entrée automatique pour serrure

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE524308C (de) * 1928-10-26 1931-05-06 Hermann Kade Schluessellochverschluss
FR2552147B1 (fr) * 1983-09-16 1988-04-29 Fichet Bauche Cle pour serrure a cache d'entree mobile

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR659496A (fr) * 1927-12-19 1929-06-28 Bricard Ancienne Maison Sterli Cache-entrée automatique pour serrure

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2246162A (en) * 1990-07-18 1992-01-22 Racal Chubb Prod Locks
GB2246162B (en) * 1990-07-18 1994-02-02 Racal Chubb Prod Locks
WO2006119222A3 (en) * 2005-05-03 2007-11-22 Master Lock Co Protective cover for a lock
US7581423B2 (en) 2005-05-03 2009-09-01 Master Lock Company Llc Protective cover for a lock
CN101523005B (zh) * 2005-05-03 2012-08-01 总锁有限责任公司 锁的保护盖
USD724931S1 (en) 2013-10-02 2015-03-24 Master Lock Company Llc Padlock cover
USD745365S1 (en) 2013-10-02 2015-12-15 Master Lock Company Llc Padlock cover
CN104594714A (zh) * 2015-01-24 2015-05-06 魏祖旭 锁芯孔防护结构
CN104594714B (zh) * 2015-01-24 2022-08-30 魏祖旭 锁芯孔防护结构

Also Published As

Publication number Publication date
DE3641148C2 (enrdf_load_stackoverflow) 1989-03-09
DE3641148A1 (de) 1988-06-16

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