WO2011065890A1

WO2011065890A1 - Device at a striking plate or a doorcase and locking member for such a device.

Info

Publication number: WO2011065890A1
Application number: PCT/SE2010/051175
Authority: WO
Inventors: Jimmy HESSELBÄCK
Original assignee: Essec Dorrforstarkningar
Current assignee: Essec Dorrforstarkningar
Priority date: 2009-11-26
Filing date: 2010-10-28
Publication date: 2011-06-03
Anticipated expiration: 2012-05-26
Also published as: RU2552983C2; EP2504507A4; US9103141B2; RU2012126534A; EP2504506A4; EP2504507A1; EP2504506A1; SE0950898A1; EP2504506B1; WO2011065887A1; US20130004260A1; SE534356C2; CN102791942A

Abstract

A device, at a striking plate or a doorframe (11, 42, 61), provided with a slot (17, 18), which is placed at an edge between two surfaces (12, 13) of the striking plate or the doorframe and orientated with an extension that is perpendicular to the vertical extension of the striking plate or the doorframe, the slot (17, 18) being formed with a first opening (171, 181) through which the head (401) a lock means (40) connected to a door can be laterally inserted into a slot space (173, 183) when the door is being closed as well as with a second opening (172, 182) into which a neck (402) connected to the lock means (40) can be inserted when said head (401 ) is being inserted into said slot space (173, 183) through said first opening (171, 181), said second opening (172, 182) being smaller than the head (401) of the lock means (40), wherein said slot space (173, 183) is limited in the direction inward toward the doorframe (42, 61 ) by a bottom surface (53) of a bottom (174, 184) against which bottom surface (53) the head (401 ) of said lock means can co-operate by at least point-wise abutting against the bottom surface (53) upon a rotation of the lock means (40) in relation to the bottom surface (53), and that said slot space (173, 183) at the side of the second opening (172, 182) is limited in the direction opposite the bottom surface (53) by an angled plane and conical surface (175, 185) having a uniform angle in relation to said bottom surface (53), the edge of the second opening (172, 182) of the slot (17, 18) inward toward the slot space (173, 183) transforming into said angled plane and conical surface (175, 185).

Description

DEVICE AT A STRIKING PLATE OR A DOORCASE AND LOCKING MEMBER FOR SUCH A DEVICE.

Technical Field

The present invention relates to the field of locking and particularly to the field of locking of doors such as outer doors. The invention relates to a device at a striking plate or at a doorframe to increase the protection against burglary. The invention also relates to a lock means that, when the door is closed and locked, co-operates with the device at the striking plate or the doorframe.

Background of the Invention

Existing locks are mounted in a door by a lock case/lock housing being bolted in the door leaf by two screws through a selvage.

These types of existing locks are also known by the Swedish patent SE 8005711-0 with the publication number 436216, which shows such a lock that in addition is provided with two lock means bolted in the selvage of the lock. These shown lock means are formed with spherical heads, which co-operate with a striking plate or the like, which is provided with slots into which the spherical heads are inserted laterally when the door is being closed.

The problems that this type of striking plate are impaired by are that the lock means that are inserted in the striking plate do not contribute to the breaking protection considering an angular change of the lock means in relation to the striking plate. However, a direct rectilinear displacement of the selvage of the lock from the striking plate is counteracted, but a breaking impact by a crowbar gives rise to considerably more complex forces than only a rectilinear effect.

The extremely great forces that a lock and a striking plate and also a door leaf are encountered in today's burglary techniques means that such a prior art lock having a striking plate cannot withstand these forces. The selvage could be curved, wherein a sufficiently great slit would allow a crowbar by its great force breaking up the entire lock construction. Alternatively, the entire lock is broken off from the door and the burglary would be a fact. Another alternative is that the entire striking plate is pulled loose from the doorframe and the burglary is carried out. A decisive factor is to prevent that a sufficiently great slit is formed between the door and the doorframe upon the attempted burglary. Should the slit become so great that a crowbar can be knocked in, this implies in most cases that the attempted burglary can be completed. Another factor is to achieve sufficiently high security, which is based on the time it takes for a burglar to force the lock. The longer time that is required for the burglary, the higher security.

The Object of the Invention

The object of the present invention is to provide an improved locking device at the doorframe side where the locking device has the possibility of cooperating with a lock means to increase the safety against burglary against, above all breaking impact against outer doors.

The object is furthermore to provide an improved slot design at the doorframe side to make burglary more difficult by breaking impact in the area of the lock case and to also conceal this slot design of the rebate of the door.

An additional object is to form a lock means that can co-operate with such a locking device in a better way than in prior art.

In addition, the object of the invention is to provide an improved burglary protection by a new co-operation between a lock mounting device at a door and a doorframe that is difficult to force using breaking tools.

Summary of the Invention

By the present invention, as the same appears in the independent claims, the above-mentioned objects are met, said disadvantages having been eliminated. Suitable embodiments of the invention are defined in the dependent claims.

The invention relates to a device at, for instance, a striking plate or a doorframe, wherein the device is formed to co-operate with a lock means mounted in turn for co-operation with a selvage adjacent to a lock in a door. The lock means is provided with a head and a neck, which parts are co-operation parts of the lock means in relation to the device in the striking plate or the doorframe. The device is provided with a slot, which is placed at an edge of the striking plate or the doorframe and orientated with an extension that is perpendicular to the vertical extension of the striking plate or the doorframe, the slot being formed with a first opening through which the head of the lock means can be laterally inserted into a slot space when the door is being closed as well as with a second opening into which the neck of the lock means can be inserted when said head is being inserted into said slot space through said first opening, said second opening being smaller than the head of the lock means to prevent the same from passing through said second opening if the door is removed from the doorframe, i.e., upon an attempted burglary. In addition, the slot space is limited in the direction inward toward the doorframe by a bottom surface of a bottom against which bottom surface the head of said lock means can co-operate by at least point-wise but also surface-wise abutting against the bottom surface upon rotation of the lock means in relation to the bottom surface upon an attempted burglary in order to minimize this rotation. Furthermore, said slot space is partly limited in the direction opposite the bottom surface by an angled plane and conical surface having a uniform angle in relation to said bottom surface, the edge of the second opening of the slot inward toward the slot space transforming into said angled plane and conical surface.

In one embodiment of the invention, the bottom surface is a plane surface. Even if such embodiments are those that have been described and are preferable, also other surface shapes of the bottom surface may be feasible as long as the contact of the bottom surface with the head of the lock means limits a rotation of the lock means.

In further embodiments of the invention, said bottom is provided with a through tool hole, which enables a mounting of the device through the slot and therefore no extra mounting holes are required.

In further embodiments of the invention, the device is provided with a circular or slot-shaped mounting hole placed in the device on the opposite side of the bottom of said bottom surface and right opposite the slot and right opposite the tool hole in a slot mounting part. In doing so, a mounting tool can be inserted through the slot and through the tool hole to enable mounting of the device by a mounting screw that extends through the mounting hole into the doorframe and preferably further into concrete or the like beside the doorframe.

In further embodiments of the invention, the head of the mounting screw is greater than the tool hole. This means that the head of the mounting screw cannot slide out or be situated inside the slot space, but the only item that can be accommodated therein when the door is closed is the head of the lock means. In further embodiments of the invention, the mounting hole is slot-shaped and provided with a slot opening through which the head of the mounting screw can be laterally inserted into the mounting hole. This same design is

advantageous in the mounting of a striking plate comprising a device according to the invention. The mounting is facilitated in this embodiment.

In further embodiments of the invention, the mounting hole is provided with a plane and/or conical surface having a uniform angle in relation to said bottom surface. Such a design of the surfaces of the mounting hole also means that the contact surfaces between a mounting screw and the mounting hole become relatively great.

In further embodiments of the invention, the head of the mounting screw is provided with the corresponding conical surface as the mounting hole as well as with a plane top surface that connects to the opposite side of said bottom against which the top surface of the mounting screw can co-operate upon an attempted burglary. This embodiment also means that the mounting screw is prevented from being rotated in the corresponding way as has been described according to the above of the lock means.

In further embodiments of the invention, the mounting hole is circular and placed in the slot mounting part, which is displaceably mounted in relation to the bottom surface of the device. These embodiments of the invention are suitable to retrofit in a striking plate or in a doorframe. The displaceability of the slot mounting part means that the device can be adjusted so that it rests against the concrete part of a wall and can therefore be given a very stable attachment in the doorframe.

In further embodiments of the invention, the slot mounting part is connected to a cylindrical mounting part in which the bottom surface is situated. This embodiment means that a simple retrofitting of a device according to the invention can be made.

In further embodiments of the invention, the cylindrical mounting part is provided with rotation-preventing means. These means may consist of a plane surface of the cylinder surface, which abuts against the inside of a plate or a frame. Alternatively, the mounting part may, in the circular slot part thereof or in another position, be provided with projecting stoppers that produce these rotation- preventing means. The invention also relates to a lock means connected to a lock housing in a door. For instance, the lock means is connected to the door via a selvage that is fixedly connected with a lock housing. In one end thereof, the lock means is provided with a head connected to a neck, which connects to said lock housing. In addition, the lock means is provided with an elongate cylindrical part that is provided with at least one threaded portion, which threaded portion co-operates with metal parts anchored inside the door. These metal parts may, e.g., consist of separate vertically orientated metal bars or the like installed in the door.

One embodiment of this lock means involves that said metal parts inside the door are connected with an inner plate and/or an outer plate placed on one side or on both sides of the door, which plate/plates constitutes/constitute a reinforcement of the door in the area of the lock thereof. By this embodiment, the lock means can be anchored in the door in a very safe way.

In further embodiments of the invention, the lock means is formed to co- operate with a device according to what has been described above by the head of the lock means being formed with a plane top surface as well as with a side surface in the form of a truncated cone the generatrix of which has the same angle to the top surface as said uniform angle according to the device described above. Thus, the lock means and the slot space of the device are adapted to co-operate with each other in an optimal way and in such a way counteract burglary by breaking tools.

In further embodiments of the invention, the neck of the lock means abuts against a selvage fixedly connected to the lock housing. This embodiment means that the selvage and the lock housing connected thereto can be anchored in an optimal way in the door by means of the lock means.

Brief Description of the Drawings

Now, the invention will be described in more detail, reference being made in connection with the accompanying drawing figures. The drawing figures show only explanatory sketches intended to facilitate the understanding of the invention.

Figure 1 shows a perspective view from the outside of a first

embodiment according to the invention in the form of a

striking plate. Figure 2 shows a perspective view from the inside of the striking plate according to Figure 1.

Figure 3 shows a perspective view of a second embodiment

according to the invention in the form of a separate

mounting part.

Figure 4 shows a front view in enlargement of the embodiment

according to Figure 3 with the lock means and mounting screw shown.

Figure 5 shows in enlargement the contact area between the

doorframe and the door.

Figure 6 shows a perspective view from the outside of the

embodiment according to Figure 3 when this is mounted in a striking plate or in a doorframe.

Figure 7 shows a perspective view according to Figure 5 from the

inside.

Figure 8 shows a perspective view of co-operating surfaces

according to the invention.

Figure 9 shows a perspective view of a second embodiment

according to the invention in the form of recesses in a metal part such as a doorframe.

Figure 10 shows a compiled view of an embodiment according to the

invention.

Description of the Invention

Figure 1 shows a striking plate 11 , which in use is mounted in a doorframe and co-operates with a lock in a door. The striking plate comprises an angle iron having a first profile surface 12, which faces the edge of the door where the lock is mounted in the door when the door is closed, and a second profile surface 13, which faces outward in the opening direction of the door. The two profile surfaces form an angle of 90° with each other, but in the transition between the surfaces, the corner is formed with a rounding. The striking plate is further provided with a number of mounting holes 141 , 142, 143, 144, 145, 146, 147, 148 for straight mounting into the doorframe as well as with bolt holes 15, 16 into which lock bolts from a lock are inserted upon closing/locking of a door. In addition, the striking plate is provided with an upper slot 17 and a lower slot 18. Both slots are equally shaped and placed in the striking plate 11 on each side of the bolt holes 15, 16. The slots 17, 18 are formed with a first opening 171 , 181 placed in the second profile surface 13 and a second opening 172, 182 placed in the first profile surface 12. These two openings lead in to a slot space 173, 183, which at least is limited by a plane surface of a bottom 174, 184 and by angled plane and conical side surfaces 175, 185. The side surfaces are angled and plane from the first opening inward toward the rounded end of the slot where the side surfaces transform into a cone shape. As is seen in the figure, the slots are directed perpendicular to the vertical extension of the striking plate, which coincides with the long side 19 of the striking plate. According to this invention, the extension of the first opening 171 , 181 from an imaginary comer between the first profile surface 12 and the second profile surface 13 along the second profile surface may be made as small as 4-7 mm. By such a small extension, a rebate of a standard door will entirely cover said first opening. The figure also shows two mounting screws 231 , 232, which are used to mount the slots 17, 18 and thereby also the striking plate 11 in the doorframe and possibly also in the wall where the doorframe is installed. The head of each mounting screw is reached by a tool through a tool hole 20 in said bottom 174, 184 placed right opposite the slot so that the tool can be inserted through both the slot and the tool hole 20.

Figure 2 shows the striking plate 11 from the back side where the same is provided with an angular stiffening beam 21 , which is attached to two spacing elements 22, which supportingly connect the underside of the striking plate and a concrete part of the wall to which the doorframe is attached. The figure also shows that the slots and thereby the striking plate are attached to said concrete part of the wall by the two mounting screws 231 , 232. Each one of these screws is detachably connected to a slot mounting part 233 fixedly connected with the back side 234 of the striking plate. The slot mounting part 233 is provided with a slot- shaped mounting hole 2351 into which the mounting screw can be introduced and be mounted by the tool through the tool hole shown in Figure 1. The mounting hole according to this embodiment is also provided with an inner widened part in order to facilitate the fitting-in upon mounting. As is seen in the figure, the slots of the mounting holes 2351 , 2352 are turned away from each other in the longitudinal direction of the striking plate, i.e., in a direction parallel to the long side 19 of the striking plate. The mounting hole 2351 of the slot mounting part 233 is formed with a plane angled surface 24, which extends around the entire mounting hole and therefore this surface transforms into a conical shape furthest in in the slot of the hole, which is at least partly rounded. The head 25 of the mounting screw 233 is formed with a surface that has the same angled shape as said plane/conical angled surface 24.

The mounting of the striking plate 11 is carried out by recesses being made for the slot mounting parts 233 and the stiffening beam 21 with the spacing element 22 thereof in the doorframe. Next, the holes are drilled for the upper and lower mounting screw 231 , 232, after which the lower mounting screw 233 is screwed in a bit. Next, the upper mounting screw 231 is fitted into the slot of the mounting hole 2351 of the striking plate, after which the entire striking plate with the upper mounting screw 231 is hooked onto the lower mounting screw 232, after which the mounting screws are screwed in by a tool through the second openings of the slots and the respective tool hole 20, and the striking plate is mounted.

Figure 3 shows a second embodiment of the invention formed as a separate mounting part 31 , which is mounted in an existing frame or in an existing striking plate. The mounting part is essentially cylindrically shaped and comprises three main parts, a slot part 32 having a bottom 33 provided with a bottom surface, which two parts are attached to a mounting housing 34, which is provided with an internal thread in which an externally threaded slot mounting part 35 is

displaceably mounted. Also in this embodiment, said bottom is provided with the tool hole 20. The mounting housing is in addition provided with a plane abutment surface 36.

Figure 4 shows a front view in enlargement of the embodiment according to Figure 3 with parts of a rotationally symmetrical lock means 40 with the head 401 and neck 402 thereof and a mounting screw 241 shown. The figure also shows how the device is mounted in a doorframe 42 and in relation to a closed door 43 with a slit 44 there between. Concealed and outlined parts are shown by dashed lines in the figure. The device as a separate mounting part 31 comprises the slot part 32, said bottom 33, the mounting housing 34, and the slot mounting part 35. Said bottom is also provided with a tool hole 20 right opposite the slot in the slot part. The slot mounting part 35 is provided with an external thread 45, which is screwed in in an internal thread 46 of the mounting housing 34. The slot part 32 is fixedly connected to the mounting housing, which part comprises a slot 17 formed with a first opening 171 placed in the front of the device and a second opening 172 placed at the top of the device. These two openings lead in to a slot space 173, which at least is limited by a plane surface of said bottom 33 and by angled plane and conical side surfaces 175. The side surfaces are angled and plane from the first opening inward toward the rounded end of the slot where the side surfaces transform into a cone shape, which has previously been described in connection with Figure 1. When the door is closed, the head 401 of the lock means with the conical side surfaces 403 thereof are inserted into the slot space 173 while the neck 402 of the lock means is inserted in the second opening 172 of the slot. The neck bridges over the slit 44 and abuts against an outer surface of the selvage 47 of the lock. By such a device in combination with such a lock means, the slit 44 can be kept at a minimum, which implies a decreased risk that a breaking tool 48, such as a crowbar, can be penetrated into the slit to apply a breaking and separating force. This conical shape of the slot and the head of the lock means imply that the frame and the door, upon an attempted burglary, can be in contact with each other along relatively large contact surfaces and

simultaneously afford enough material in this area for the parts not to break.

Figure 4 also shows that the mounting housing 34 comprises a mounting space 49 to house a head 242 of the mounting screw 241.

The mounting of the device is made by a hole corresponding to the diameter of the mounting housing and the slot part being drilled in the

doorframe/striking plate 42 all the way in to the concrete part 50 of the wall. A central fastening hole for the mounting screw 241 is drilled in the concrete wall. The device is adapted to the distance between the outer surface of the doorframe and the surface of the concrete wall by extending/shortening the device by the slot mounting part 35 being screwed into/out of the mounting housing 34. The obtained location is marked and the parts are taken apart after which the mounting screw is inserted through a centrally situated mounting hole 51 in the slot mounting part 35. The parts are screwed together according to the marking and the device is fastened in the concrete wall by the mounting screw 241 using a tool inserted through the second opening 172 of the slot and through the tool hole 20.

Figure 5 solely shows the contact area between the doorframe and the door, where the slot part 32 is shown with the plane/conical angled side surfaces 175 thereof that abut against the conical surface 52 of the head 401 of the lock means 40. These plane/conical angled side surfaces 75 have an angle of 45° in relation to the bottom surface 53 of said bottom 174. The angle of the generatrix of the head of the lock means is the same, i.e., 45° in relation to the symmetry axis of the lock means. Within the scope of the invention, the angle may be selected in the interval of 30-60°, though preferably 45°. The figure shows that an inclination of the lock means 40 at the angle a, where 0° < a < 10°, implies that the conical surface 52 of the lock means gets into strong abutment against said plane/conical angled side surfaces 175 in the area P and simultaneously the plane top surface 54 of the lock means gets into strong abutment against said bottom surface in the area Q. In such an inclination of the lock means, also the neck 402 thereof will abut strongly against the second opening 172 of the slot in the area at the arrow. In the figure, the angle of the inclination a is approx. 5°, and already at this angle, the surfaces function to limit further inclination of the lock means. Thus, all shown surfaces contribute in these areas to prevent further inclination of the lock means, which in turn thwarts an attempted burglary by breaking impact. The abutment of the surfaces starts with a point contact, but by the deformation of the parts at a great force impact, the point abutment increases and transforms into a surface abutment.

Figure 6 shows the separate cylindrical mounting part 31 according to this second embodiment when it is retrofitted in a striking plate or in a doorframe 61. The mounting part has been placed so that the plane abutment surface thereof abuts against the inside of the striking plate or the doorframe 61 and accordingly cannot be rotated in relation to the same. The stoppers 62, 63 of the mounting part 31 , shown in the figure, situated on each side of the slot 17 projecting approx. 2 mm from the circular top surface of the slot part 32 is an alternative or complement to this abutment surface. These stoppers have the purpose of preventing the rotation of the mounting part 31 in its seat in the striking plate or the doorframe 61 , particularly in embodiments wherein the cylindrical mounting part 31 lacks the plane abutment surface 36 shown in Figure 3. The stoppers are mounted entirely flush with the striking plate or the doorframe. The figure also shows an inlet edge 64 at the slot 17, which inlet edge 64 also is formed entirely flush with the striking plate or the doorframe. Figure 7 shows the back side of the assembly according to Figure 6 where the slot mounting part 35 of the cylindrical mounting part 31 is seen together with the mounting hole 51 thereof. The plane abutment surface 36 of the mounting housing 34, see also Figure 3, rests, as is seen in the figure, against the inside of the striking plate/doorframe 61. As has been mentioned above, embodiments of the cylindrical mounting part 31 may also lack this abutment surface and only comprise said stoppers as rotation-preventing means.

Figure 8 shows the mentioned plane/conical angled side surfaces 175 in the slot 17 shown at the slot part 32 according to the second embodiment. Other embodiments have the same shape of said plane/conical angled side surfaces. The side surfaces have the same angle around the entire slot and consist of plane surfaces 81 at the straight portions of the slot and a conical surface 82 at the rounding of the slot.

Figure 9 shows a third embodiment of a device according to the invention in the form of a metal part 91 having slots 17, 18 situated on each side of recesses 92, 93 in the metal part 91 for lock bolts. The slots 17, 18 have been finished by milling in the metal part 91 , which is a striking plate or a doorframe. The slots are milled so that said plane/conical angled side surfaces 175, 185 are formed and that a bottom 174, 184 having a bottom surface 53 either is formed directly in the milling operation or alternatively a bottom 174 having a bottom surface 53 therein is connected after the milling operation.

Figure 10 shows co-operating parts according to the invention in

connection with the embodiment having the striking plate 11 according to Figure 1. The striking plate is connected to a frame or a wall by the screws 231 , 232. The slots 17, 18 of the striking plate 11 co-operate with the lock means 40 and their respective heads 401. The lock means 40 extend further through the selvage 47 to which a lock housing 100 is fixedly connected. Furthermore, via an elongate cylindrical part 140, the lock means 40 are connected by at least one thread 102 to a metal part 1031 , which in turn is connected to either an inner plate 104 and/or an outer plate 105 on each side of a door in which also the lock housing is mounted. The metal parts may, as shown in the figure, be connected to the inner plate and/or the outer plate, which in this connection constitute/constitutes

reinforcements of the door in the area of the door lock in the door. Alternatively, the metal parts may be individually anchored in the door without contact with said plates, e.g. a flat iron. In Figure 10, locking parts have been shown in a door in cooperation with locking parts in a doorframe with a striking plate according to the embodiment of the invention shown in Figure 1. The invention naturally also relates to the corresponding locking parts in the door in co-operation with a device, at striking plates or doorframes according to the other shown embodiments according to the invention.

The mounting of the lock means 40 in all shown embodiments is made by the lock means being inserted through a hole 106 into the selvage 47 connected to the lock housing 100 and screwed in into the metal parts 1031 , 1032, which are anchored in the door so that the collar 402 of the lock means abuts against the surface of the selvage 47 in the screwed-in position.

Claims

1. Device, at a striking plate or a doorframe (11 , 42, 61 ), provided with a slot (17, 18), which is placed at an edge between two surfaces (12, 13) of the striking plate or the doorframe and orientated with an extension that is perpendicular to the vertical extension of the striking plate or the doorframe, the slot (17, 18) being formed with a first opening (171 , 181 ) through which a head (401 ) of a lock means (40) connected to a door can be laterally inserted into a slot space (173, 183) when the door is being closed as well as with a second opening (172, 182) into which a neck (402) connected to the lock means (40) can be inserted when said head (401 ) is being inserted into said slot space (173, 183) through said first opening (171 , 181 ), said second opening (172, 182) being smaller than the head (401 ) of the lock means (40), characterized in that said slot space (173, 183) is limited in the direction inward toward the doorframe (42, 61 ) by a bottom surface (53) of a bottom (174, 184) against which bottom surface (53) the head (401 ) of said lock means can co-operate by at least point-wise abutting against the bottom surface (53) upon a rotation of the lock means (40) in relation to the bottom surface (53), and that said slot space (173, 183) at the sides of the second opening (172, 182) is limited in the direction opposite the bottom surface (53) by an angled plane and conical surface (175, 185) having a uniform angle in relation to said bottom surface (53), the edge of the second opening (172, 182) of the slot (17, 18) inward toward the slot space (173, 183) transforming into said angled plane and conical surface (175, 185).

2. Device according to claim 1 , characterized in that the bottom surface (53) is a plane surface.

3. Device according to any one of claims 1-2, characterized in that said bottom (174, 184) is provided with a through tool hole (20).

4. Device according to claim 3, characterized in that the device is provided with a circular (51 ) or slot-shaped (2351 , 2352) mounting hole placed in the device on the opposite side of the bottom surface (53) of said bottom (174, 184) and right opposite the slot (17, 18) and right opposite the tool hole (20) in a slot mounting part (233, 35) so that a mounting tool can be inserted through the slot (17, 18) and through the tool hole (20) to enable mounting of the device by a mounting screw (231 , 232, 241 ) that extends through the mounting hole into the doorframe (42, 61 ) and preferably further into concrete (50) or the like beside the doorframe (42, 61).

5. Device according to claim 4, characterized in that the head (25, 242) of the mounting screw (231 , 232, 241 ) is greater than the tool hole (20).

6. Device according to any one of claims 4-5, characterized in that the mounting hole (2351 , 2352) is slot-shaped and provided with a slot opening through which the head (25) of the mounting screw (231 , 232) can be laterally inserted into the mounting hole.

7. Device according to claim 6, characterized in that the mounting hole (2351 , 2352) is provided with a plane and/or conical surface (24) having a uniform angle in relation to said bottom surface (53).

8. Device according to claim 7, characterized in that the head (25) of the mounting screw (231 , 232) is provided with the corresponding conical surface as the mounting hole as well as with a plane top surface that connects to the opposite side of said bottom (174, 184) against which the top surface of the mounting screw can co-operate upon an attempted burglary.

9. Device according to any one of claims 4-5, characterized in that the mounting hole (51 ) is circular and placed in the slot mounting part (35), which is displaceably mounted in relation to the bottom surface (53) of the device.

10. Device according to claim 9, characterized in that the slot mounting part (35) is connected to a cylindrical mounting part (31 ) in which the bottom surface (53) is situated.

11. Device according to claim 10, characterized in that the cylindrical mounting part is provided with rotation-preventing means (36, 62, 63).

12. Device according to any one of claims 10-11 , characterized in that the bottom surface (53) is situated in a circular slot part (32) provided with said rotation-preventing means in the form of stoppers (62, 63).

13. Lock means (40) connected to a lock housing (100) in a door (43), for instance via a selvage (47), which lock means (40) in one end thereof is provided with a head (401) connected to a neck (402), which connects to said lock housing, characterized in that the lock means (40) in addition is provided with an elongate cylindrical part (140) that is provided with at least one threaded portion (102), which threaded portion co-operates with metal parts (1031 , 1032) anchored inside the door.

14. Lock means (40) according to claim 13, characterized in that said metal parts (1031 , 1032) are connected with an inner plate (104) and/or an outer plate (105) placed on one side or on both sides of the door (43) and which plate/plates constitutes/constitute a reinforcement of the door (43) in the area of the lock housing (100) thereof.

15. Lock means (40) according to any one of claims 13-14, characterized in that the lock means (40) is formed to co-operate with a device according to any one of claims 1-9 by the head (401 ) of the lock means (40) being formed with a plane top surface (54) as well as with a side surface (403) in the form of a truncated cone the generatrix of which has the same angle to the top surface (54) as said uniform angle according to claim 1.

16. Lock means (40) according to any one of claims 13-15, characterized in that the neck (402) of the lock means (40) abuts against a selvage (47) fixedly connected to the lock housing (100).