EP0392378A2 - Schutzvorrichtung für Zylinderschlösser - Google Patents

Schutzvorrichtung für Zylinderschlösser Download PDF

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Publication number
EP0392378A2
EP0392378A2 EP90106607A EP90106607A EP0392378A2 EP 0392378 A2 EP0392378 A2 EP 0392378A2 EP 90106607 A EP90106607 A EP 90106607A EP 90106607 A EP90106607 A EP 90106607A EP 0392378 A2 EP0392378 A2 EP 0392378A2
Authority
EP
European Patent Office
Prior art keywords
mask
cylinder
pressure
door
mask 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Withdrawn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
EP90106607A
Other languages
English (en)
French (fr)
Other versions
EP0392378A3 (de
Inventor
Yoav Weinberger
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
Priority claimed from IL89893A external-priority patent/IL89893A/xx
Application filed by Individual filed Critical Individual
Publication of EP0392378A2 publication Critical patent/EP0392378A2/de
Publication of EP0392378A3 publication Critical patent/EP0392378A3/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Withdrawn legal-status Critical Current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
    • E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/02—Striking-plates; Keepers; Bolt staples; Escutcheons

Definitions

  • the present invention relates to a covering mask for a door lock. More particularly, the invention relates to a protective mask which is intended to prevent burglars from easily breaking a door lock.
  • Masks of the type described in this application are commonly employed in the art and have the purpose of making it difficult to reach the lock and break it open.
  • cylinders of a lock when mounted on a door, protrude from the door by varying depths, depending on the width of the door. Most often, however, the length of the cylinder which is exposed outside of the door is sufficient to enable a burglar to get hold of it with an instrument, and to apply a force in a direction perpendicular to the axis of the cylinder, thereby causing it to break open.
  • a mask is provided around the portion of the cylinder which protrudes outside the plane of the door, so that getting hold of the cylinder itself becomes virtually impossible.
  • Figure 1 represents the back of a mask according to the prior art.
  • the mask is firmly connected to the door by means of two or more screws which pass through the door and are bolted on the mask in bores provided for that purpose, two of such bores being shown in Figure 1.
  • the mask is generally indicated by 1, and the bores by 2.
  • the opening into which the tip of the lock fits is indicated by 3.
  • Fig. 2 shows in partial cross-section the situation in which the mask is mounted on a cylinder lock.
  • a portion of the door is indicated by 4.
  • the cylinder 5 protrudes from both ends of the door in this figure, but the outer tip 6 is masked by a mask 1.
  • Two screws 7 and 7′ (not shown) pass throughout the door 4, and are provided with screw heads 8 and 8′ which are in contact with the inner side of the door 4, conveniently with a reinforced base 4′, while their other extremity is bolted into bores 2 (not shown in the figure) of mask 1.
  • the covering mask according to the invention is characterized in that it is provided with pressure locking means adapted to apply a pressure on the outer surface of the cylinder.
  • pressure locking means adapted to apply a pressure on the outer surface of the cylinder.
  • the pressure is applied in a direction substantially perpendicular to the plane of the insertion of the key.
  • the means adapted to apply a pressure on the cylinder comprise one or more screws driven through a threading provided in the body of the mask.
  • the direction in which these screws are driven is substantially perpendicular to the plane of the insertion of the key.
  • the screws or other locking means can create a small angle with the plane of the cylinder which they contact, without causing any problem, as long as they apply the desired pressure on the lock cylinder. Care should be taken, however, not to apply a pressure in a direction which may render the insertion of the key, or the operation of the lock, difficult or impossible.
  • the screws may not only apply a pressure on the cylinder, but actually thereby create bores on the surface of the cylinder, which will firmly keep the mask in place.
  • the said screws are provided with a weakened portion which, in the mounted position, is located inside the body of the mask, the said weakened location causing the screw to break up when a force which exceeds the strength of the weakened location is applied thereto.
  • the mask will be securely mounted on the lock cylinder, but the pressure means which serrate it to the cylinder will be practically destroyed after mounting, so that dismantling of the mask-cylinder assembly becomes virtually impossible.
  • the screw when breaking may leave a conical or semispherical tip which may protrude outside the mask.
  • the pressure means may comprise loose tips which can be housed in the mask and a pressure may be applied thereon by independent pressure generating means, e.g. a screw.
  • the covering mask comprises a main body provided with anchoring means, for firmly connecting it to the door, and a door-lock cylinder mask fitting into the said main body at its outer perimeter and around the door-­lock cylinder at its inner perimeter and which is fastened to both the main body and to the cylinder.
  • a door-lock cylinder mask fitting into the said main body at its outer perimeter and around the door-­lock cylinder at its inner perimeter and which is fastened to both the main body and to the cylinder.
  • the neighboring boundaries of the two parts lie substantially on the same plane, so that no easy hold can be obtained on the cylinder mask for forcedly removing it.
  • the door-lock cylinder mask plane protrudes from the plane of the main body, it should have sloping edges to prevent breaking apart thereof by introducing an object to dismantle the mask.
  • the pressure means may comprise loose tips which can be housed in the mask and a pressure may be applied thereon by independent pressure generating means, e.g. a screw.
  • a further embodiment of the invention includes a single hole for both the pressure applying screws and fastening screws, instead of two separate threadings. In such a case at least part of the thread of the inner hole will remain free for engaging the fastening screw.
  • the circumference of the main body is toothed, so that when it is fastened to the door, it penetrates into the door, which will make the dismantling of the mask much more difficult because it would become impossible to insert a sharpened tool, such as a screwdriver, between the mask and the door in an attempt to break the lock.
  • Fig. 3 shows a mask according to one embodiment of the invention, in the front direction, which is provided with three screws for applying pressure on the exposed part of the cylinder.
  • the tip of the exposed portion of the cylinder will pass through the opening 3.
  • the pressure-locking means comprise a screw 10 and a threaded hole 11 provided in the mask.
  • the mask When it is desired to mount the mask on a lock cylinder, the mask is mounted on the desired position and the screws 10 are screwed on, so that their tips 12 start to apply a pressure on the outer walls of the lock and, if enough pressure is applied, to provide bores on the outer part of the cylinder.
  • the screws 10 are provided with a weakened location 13, in which the diameter of the screw has been rendered considerably smaller.
  • Fig. 4 shows the back of the mask after having been mounted, the lock cylinder having been removed for illustration purposes. Only the tips 12 of the screws remain, and the outer part of the screws, which have broken off, are no longer visible.
  • the main body of the mask is shown in Fig. 5(a) in front view, and in Fig. 5(b) in side view and in cross-section.
  • the main body 100 comprises anchoring means 101, in this embodiment, a plane the shape of which can be chosen, e.g., between square, round, elliptic, rectangular or any other geometric shape such as multihedron, comprising several holes 102 for screws to be screwed into the door.
  • An opening 103 is left for the cylinder, which may have the shape of a cylinder or may be larger.
  • This part is first mounted around the cylinder and fastened to the body of the door by regular means, preferably by screws (not shown).
  • Fig. 5 there are shown 6 possible locations of such screws, but alternative ones may be employed, depending on the shape of the anchoring means 101.
  • additional anchoring means e.g., tooths which penetrate into the door (not shown) can be provided.
  • the main body 100 further comprises a housing 104 for receiving the cylinder mask, which is shown in Fig. 5(b) in cross-section. Holes 105 are also provided, for insertion of pressure screws which are to reach the cylinder, and holes 106 can be provided to house tightening means such as screws, to securely connect the mask to the main body.
  • the door-lock cylinder-mask (indicated by numeral 107) is shown in Fig. 5(c) in front view and in Fig. 5(d) in side view.
  • the central hole 108 is shaped so as to fit around the cylinder, and the body 109 is sized and shaped so as to fit into housing 106 of the main body without leaving substantial gaps.
  • Holes 105′ and 106′ are positioned so as to be found in correspondence with holes 105 and 106 of the main body, when the device is mounted.
  • holes 105,105′, 106 and 106′ should be threaded as required, as will be apparent to a skilled person.
  • Fig. 6 shows the device of Fig. 5 in the mounted position, where both parts of the mask are mounted on the cylinder. This figure also shows two screws 110 functioning as pressure means to apply pressure on the cylinder.
  • the thickness of mask 107 should be such that, when inserted into the main body 100, no substantial portion of it is exposed.
  • the main body 100 of the mask is initially fastened to the door in the desired position, e.g., using several screws. Then the mask 107 is inserted into the housing 104 of the main body 100, and then screws 110 are screwed on so that their tips 112 start to apply a pressure on the outer walls of the lock and, if enough pressure is applied, to provide bores on the outer part of the cylinder.
  • the screws 110 are provided with a weakened location 113, in which the diameter of the screw has been rendered considerably smaller.
  • Fig. 7 shows the back of the mask after having been mounted, the lock cylinder having been removed for illustration purposes. Only the tips 112 of the screws remain, and the outer part of the screws, which have broken off, are no longer visible.
  • a preferred embodiment of the invention provides connecting means for securely connecting the door-lock cylinder-­mask to the main body of the masking device, which connecting means are actuated by the insertion of the cylinder therein.
  • the cylinder-mask is loosely fitted into the housing of the device, and introducing the cylinder causes the connecting means to move to the fastened portion.
  • removing the cylinder will cause the connecting means to return to the inactive position, thereby permitting to separate the cylinder-mask from its housing.
  • FIG. 8 An illustrative and non-limitative example of a possible shape of this embodiment of the invention is shown in Fig. 8, which illustrates a cylinder-mask 107, provided with a plurality of pins 114 (four such pins being shown in the figure) which may slide outwardly, in the direction of the arrows.
  • the pins 114 are pushed out and their tips 115 protrude from the mask 107 and fit into corresponding holes provided in the housing (104 in Fig. 3(b)).
  • interlocking of the two parts of the device is achieved, which is reversible by removing the door-lock cylinder, e.g., by providing springs which apply a force toward the center of the opening 108.
  • the mask may be made of two different pieces which can be connected by connections such as screws, and thus closing the screws causes pressure to be substantially uniformly applied around the cylinder.
  • the mask could have an ⁇ configuration and its bottom part could be open and provided with closure means. Thus, closing its bottom part (e.g., by means of a screw) would cause a pressure to be applied on the cylinder.
  • both portions containing upper and lower pin, 115 would be removed to result in two symmetrical parts, and in the second case only the bottom section 115 would be removed, to provide a substantially ⁇ configuration.
  • the invention also embraces the door-lock cylinder-mask and the main body that houses it, as such.
  • using these two parts to mask the cylinder even if no pressure means are provided, will result in a considerable advantage over the knowm art.
  • the application is meant to include also a composite cylinder mask of the type herein described, even when no pressure means are provided.
  • the invention provides a very convenient method of masking door cylinders, which is free from the disadvantages of the masks known in the art.
  • the need for long screws passing through the entire depth of the door has been obviated and the invention, as well as the problems of masks which do not effectively prevent the breaking up of lock cylinders.
  • the skilled engineer will of course be able to provide many modifications of the mask, its shape as well as the number, shape and nature of the pressure-locking means. As will be apparent to the skilled person, however, these modifications are not such as to exceed the scope of the invention.

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  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
EP19900106607 1989-04-10 1990-04-06 Schutzvorrichtung für Zylinderschlösser Withdrawn EP0392378A3 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
IL89893 1989-04-10
IL89893A IL89893A (en) 1989-04-10 1989-04-10 Covering mask for door-lock cylinder
IL93619A IL93619A0 (en) 1989-04-10 1990-03-02 Improved covering mask for door-lock cylinder
IL93619 1990-03-02

Publications (2)

Publication Number Publication Date
EP0392378A2 true EP0392378A2 (de) 1990-10-17
EP0392378A3 EP0392378A3 (de) 1991-08-28

Family

ID=26321922

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900106607 Withdrawn EP0392378A3 (de) 1989-04-10 1990-04-06 Schutzvorrichtung für Zylinderschlösser

Country Status (2)

Country Link
EP (1) EP0392378A3 (de)
IL (1) IL93619A0 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6272890B1 (en) * 1999-08-27 2001-08-14 Fred Michael Huston Fork lock cover for motorcycle mounted with tape and method
US6434986B1 (en) * 1999-04-24 2002-08-20 Ncr Corporation Lock protection
EP1308585A2 (de) * 2001-11-05 2003-05-07 Bricard SA Schloss mit Sicherheitsblock gegen Einbruch
FR2831911A1 (fr) * 2001-11-05 2003-05-09 Bricard Sa Bloc de surete anti effraction pour serrure
GB2399595A (en) * 2003-02-17 2004-09-22 Fullex Locks Ltd Cylinder lock guard
GB2376980B (en) * 2001-06-26 2005-03-09 Jurras Ltd Security device

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE426263C (de) * 1923-08-29 1926-03-05 Rheinische Tuerschliesserfabri Vorrichtung zur Befestigung von Schlossschildern, Rosetten u. dgl.
DE489062C (de) * 1930-01-13 Bittmann & Co G M B H Zweiteilige Verkleidungsrosette fuer Zylinderschloss
DE1056504B (de) * 1956-06-26 1959-04-30 Heinrich Wilke Verbindungsteil fuer Rosetten von Zylinderschloessern
DE2208655A1 (de) * 1972-02-24 1973-08-30 Westfaelisches Metallwerk Schlosszylinder mit mindestens einem beschlag fuer tueren, fenster od.dgl
CH595534A5 (en) * 1976-05-03 1978-02-15 Schulte & Co Schlossfab Safety rosette for door lock
WO1988001333A1 (en) * 1986-08-15 1988-02-25 Ross Douglass Squire Lock protector
DE8717477U1 (de) * 1987-09-23 1988-11-10 Melchert Beschläge GmbH & Co KG, 5628 Heiligenhaus Beschlag für Türen o.dgl.
DE8900683U1 (de) * 1989-01-23 1989-03-16 Peter Metz, Homa-Beschläge GmbH & Co KG, 5620 Velbert Beschlagabdeckung

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE793848A (fr) * 1973-01-10 1973-05-02 Sobinco Fa Deur en slotbeslag gebruikt bij deze deur

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE489062C (de) * 1930-01-13 Bittmann & Co G M B H Zweiteilige Verkleidungsrosette fuer Zylinderschloss
DE426263C (de) * 1923-08-29 1926-03-05 Rheinische Tuerschliesserfabri Vorrichtung zur Befestigung von Schlossschildern, Rosetten u. dgl.
DE1056504B (de) * 1956-06-26 1959-04-30 Heinrich Wilke Verbindungsteil fuer Rosetten von Zylinderschloessern
DE2208655A1 (de) * 1972-02-24 1973-08-30 Westfaelisches Metallwerk Schlosszylinder mit mindestens einem beschlag fuer tueren, fenster od.dgl
CH595534A5 (en) * 1976-05-03 1978-02-15 Schulte & Co Schlossfab Safety rosette for door lock
WO1988001333A1 (en) * 1986-08-15 1988-02-25 Ross Douglass Squire Lock protector
DE8717477U1 (de) * 1987-09-23 1988-11-10 Melchert Beschläge GmbH & Co KG, 5628 Heiligenhaus Beschlag für Türen o.dgl.
DE8900683U1 (de) * 1989-01-23 1989-03-16 Peter Metz, Homa-Beschläge GmbH & Co KG, 5620 Velbert Beschlagabdeckung

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6434986B1 (en) * 1999-04-24 2002-08-20 Ncr Corporation Lock protection
US6272890B1 (en) * 1999-08-27 2001-08-14 Fred Michael Huston Fork lock cover for motorcycle mounted with tape and method
GB2376980B (en) * 2001-06-26 2005-03-09 Jurras Ltd Security device
EP1308585A2 (de) * 2001-11-05 2003-05-07 Bricard SA Schloss mit Sicherheitsblock gegen Einbruch
FR2831911A1 (fr) * 2001-11-05 2003-05-09 Bricard Sa Bloc de surete anti effraction pour serrure
EP1308585A3 (de) * 2001-11-05 2003-05-28 Bricard SA Schloss mit Sicherheitsblock gegen Einbruch
GB2399595A (en) * 2003-02-17 2004-09-22 Fullex Locks Ltd Cylinder lock guard
GB2399595B (en) * 2003-02-17 2006-04-19 Fullex Locks Ltd Locks

Also Published As

Publication number Publication date
IL93619A0 (en) 1990-12-23
EP0392378A3 (de) 1991-08-28

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