WO2011014116A1

WO2011014116A1 - Safe comprising a door which is linearly displaceable between closed and open position.

Info

Publication number: WO2011014116A1
Application number: PCT/SE2010/050869
Authority: WO
Inventors: Patrich Ohlsson; Kristoffer Dale
Original assignee: Raufoss Ammunisjonsfabrikker As
Priority date: 2009-07-31
Filing date: 2010-07-27
Publication date: 2011-02-03
Also published as: EP2459832A1

Abstract

Safe comprising a body (10, 210, 310, 410) having walls which define a compartment and an opening (17, 417); a door (20, 320, 420) which is mounted to the body and linearly displaceable between a closed position, in which the opening is covered and an open position, in which the opening is not covered by the door; and a lock (30, 430) for allowing the door to be locked in the closed position. The body comprises at least one guide rail (41, 42, 241, 341, 441, 442), which together with at least one of said walls (16, 210, 312, 316, 416) define a guide slot (43, 44, 344, 443, 444) which receives an edge portion (22, 23, 322, 422, 423) of said door for holding and guiding the door during said linear displacement. The lock is mounted to the door and comprises a linearly displaceable dead-bolt (32, 432) which, in a locked position, engages a dead-bolt receiving recess (41b, 370, 418d) arranged in the body. The door (20, 420) is, at one edge (21, 421), which is not received in a guide slot, provided with first engagement means (21b, 21c, 421b, 421c), which in the closed position engages an end portion (41a, 42a, 441a, 442a) of at least one guide rail (41, 42, 441, 442)

Description

Safe comprising a door which is linearly displaceable between closed and open position

Field of the invention

This invention relates to a safe comprising a body and a door which is linearly displaceable between an open and a closed position.

Background

Safe is a common term for cabinets designed for safekeeping of e.g. cash, jewellery and weapons. This type of cabinets has a long history and has not experienced a high degree of renewal of its basic construction. The cabinets are

traditionally designed with hinged doors, with integrated locks. The doors are restricted against opening by bolts ejected from the door and into the cabinet frame which surrounds the door. Typically, this type of cabinet is equipped with multiple locking bolts to achieve satisfactory security against unintended opening.

This type of cabinets are available in different sizes, from small cabinets for storage of small objects such as

jewellery and small handguns to large cabinets intended for storage of e.g. weapon collections. Traditional cabinet construction requires a wide framework around the door to give the necessary intrusion for locking bolts and space for hinges. This causes a limitation of the cabinet opening area, and gives a reduced storage capability for the user. Doors with integrated locking mechanism must be built with a depth that enables, in addition to the volume of the locking bolts, space for positioning of their displacement mechanisms. This means that the doors effective depth increases and the available volume for storage are reduced accordingly. The relationship between the cabinet's external measurements and the net volume available for storage is larger than

desirable. A compact and voluminous door in addition to large outer dimensions in order to achieve adequate storage volume and opening area, makes this type of cabinet large and heavy. This again leads to high material consumption and production costs. In addition to the external dimensions, a space equal to the width of the door is required in front of the cabinet to provide access when the door is open. This means that cabinets can not be placed in narrow passages such as in corridors, or in small rooms and closets. Traditional cabinet construction gives in very small extent possibility to customize the appearance to individual needs and wants.

A known alternative to the principle of hinged doors are sliding doors. They are typically used where there is limited space for operating a door. The classification of safety cabinets are subject to strict requirements for resistance against burglary. With sliding doors there are other design challenges to achieve burglary resistance, compared to solutions normally used in traditional structures. Use of sliding doors in security cabinets have been introduced earlier, but without the ability to consolidate a position in the market. One reason for the lack of success in the market, is the partly absence of good mechanical design solutions. In particular, this absence is reflected in the design of lock mechanism and how this mechanism interacts with the sliding door. By using the known design principles, cabinets with sliding doors have been designed in non-optimal manner with regard to resistance against break-ins, causing the cabinet with sliding doors to have obtained poor results in

classification tests. Another challenge with cabinet using sliding doors is the need for weight balancing of vertical moving doors. A sliding door for use in this type of cabinets will have a weight that implicates a weight balancing for user-friendly operation. The limitation of good weight balancing solutions in terms of functionality and cost, has limited the use of sliding doors to horizontal sliding doors.

Many people who basically want or needs a cabinet for safe storage, will because of the size, space and appearance of traditional safes not go to such an acquisition. It is thus revealed a need for new design basics of security cabinets, which allows a reduction of the disadvantages associated with traditional solutions. By eliminating the known problems related to sliding door concepts, a new market segment for security cabinet can be reached.

Prior art

Temper resistance cabinets in different sizes and design have been commercially available since many years. Details in construction of doors and locking mechanisms vary in terms of suspension and fastenings, but known solutions for this type of cabinets utilize hinge door designs.

U.S. 7404363 shows a construction of different options for hinge positioning and locking function of the locking

mechanism where the door directly or via locking bolts is pushed into the cabinet frame work.

WO 99/50519 shows the layout of a type of hinge used in the security cabinet structures. This design is closely related to hinges used in standard doors. U.S. 7350470 shows a door design developed for a safe made in an alternative material.

EP 1926878 shows a hinged door construction.

EP 980700 shows a security box that can be placed in a drawer compartment e.g. in a kitchen section. The whole drawer compartment containing a security box designed as a drawer, is constructed and bolted to resist attempts of burglary.

WO 2008/021249 shows a security box closely related to what is shown in EP 980700. The cabinet's door is an integrated part of a drawer that can be pushed or drawn out or into the closet.

U.S. 4278033 shows a construction for cabinets with a

horizontal sliding door. The cabinet has two conventional locks with rotational locking arms placed on the door. The locking arms are rotated into engagement with the cabinet for locking. This type of lock will have difficulty to pass qualifying tests for a security cabinet. The design of the slide with a large structural bend in the forward end of the door enables use of locks with rotational locking arms, but weakens the structural strength. The door has in principle six exposed edges that all must be able to resist an attack. US 5,111,755 discloses a safe gun storage apparatus

comprising an outer container having an open lower side and a gun drawer which is vertically slidable in and out of the open lower side. The drawer may be blocked in a closed position by a child-deterrent locking mechanism which is fixed to the container and which comprises a locking bolt which is engageable with an opening arranged in a top support member of the gun drawer. US 7,178,370 B2 discloses a gravity operated gun safe

comprising a housing with a front in which an opening is arranged. A door is slidably mounted in the housing and movable between a closed and an open position. A latch system comprising a solenoid fixed to the housing and a spring loaded latch which may engage an upper lip of the door is provided for latching the door in the closed position. Brief summary of the invention.

One object of the present invention is to provide an enhanced safe for deposit of valuables, weapons and the like. Another object is to provide such a safe exhibiting a high degree of security.

A further object is to provide such a safe which affords a comparatively large storage space in relation to the outer dimensions of the safe. Still a further object is to provide such a safe which admits a comparatively high degree of freedom in regard of the design, shaping and styling of the safe.

Yet another object is to provide such a safe which may be easily and efficiently manufactured at a comparatively low cost.

These and other objects are achieved by a safe as specified in the preamble of claim 1, which safe exhibits the special technical features specified the characterizing portion of the claim. The safe comprises a body having walls which define a compartment and an opening. A door is mounted to the body and linearly displaceable between a closed position, in which the opening is covered and an open position, in which the opening is not covered by the door. A lock is arranged for allowing the door to be locked in the closed position. In accordance with the invention, does the body comprise at least one guide rail, which together with at least one of said walls define a guide slot which receives an edge of said door for holding and guiding the door during the linear displacement. The lock is mounted to the door and comprises a linearly displaceable dead-bolt which, in a locked position, engages a dead-bolt receiving recess arranged in the body. The door is at one edge, which is not received in a guide slot, provided with first engagement means, which in the closed position engages an end portion of at least one guide rail.

Significant benefits of the safe in accordance with the invention are as follows: The safe will not, as a result of the use of an direct blocking dead-bolt lock, have

limitations regarding the necessity of a large structural bend to provide space and functionality as would be necessary when using conventional solutions like locks with rotational locking arms. The door will only have four sides that can be attacked and may be designed with a structural strength for withstanding break-in attempts. All four sides of the door and the corresponding edges of the body may have mechanical interference by bended geometries in either the body or the sliding door. This provides a very strong and tamperproof connection in the closed position. By arranging the dead-bolt lock to give a direct mechanical locking between the sliding door and the guiding rails, or between the sliding door and the walls of the body, the body may be designed with opening in one of the body walls without any structural bending. This gives the possibility to make a very stiff design with great mechanical strength. The strong mechanical interference between the sliding door and the rigid body makes it possible to achieve approval according to the highest approval

criteria.

The provision of that one edge of the door is provided with first engagement means, which in the closed position engages an end portion of at least one guide rail ensures that the third edge of the door may be securely held to the body in the closed position. This enhances further the resistance to attacks and thereby the security of the safe.

Safes designed in accordance with the invention can be built less voluminous, with reduced weight and thus provide a far better relationship between the cabinet's external dimensions and the internal net volume for storage. This will allow manufacturing of safes with low weight and a great potential for production cost reduction through reduced material consumption. The invention increases the freedom in design in terms of functionality and ergonomics, such as reduced clamp risk, compared to traditional structures. The invention has made a technology change possible in terms of material choice, locking function and construction of the cabinet and sliding door. The invention allows a wider spectre of

industrial and product design for individual customization of products .

A bent edge portion of the door may, in the closed position, engage a corresponding second engagement means arranged at the body. Hereby, the securing of the door to the body is further increased.

The second engagement means may comprise a bar which is fixed to a respective guide rail. This entails for a simple and cost saving design which still provides great safety.

The end portion of the at least one guide rail and the second engagement means may be arranged at opposite sides of the lock, when the door is in the closed position. In the closed position, the lock will hereby be positioned behind a portion of the door, which portion is securely engaged with the body at edges that are arranged at multiple sides of the lock. Access to the lock by tampering or attacking the door is thereby prevented. Preferably, two guide rails are arranged at opposite sides of the opening, each of which guide rail together with a

respective wall defines a guide slot which receives a

respective edge of the door. Hereby, an enhanced guiding of the door is achieved and the door is at the same time

securely engaged with the body along the two opposing edges of the door.

A dead-bolt receiving recess may be arranged in at least one of said guide rails. This allows for a rigid and secure engagement of the dead-bolt in its locked position and provides for easy and efficient manufacturing of the safe.

A dead-bolt receiving recess may be arranged in a striker plate, which is formed of a forwardly bent portion of a metal plate forming an interior wall of the body. This allows for a secure engagement of the dead-bolt and provides a great freedom of choice in regard of the design of the guide rails.

A dead-bolt receiving recess may alternatively or

additionally be arranged at one of said walls. This also allows for a secure engagement of the dead-bolt and provides a great freedom of choice in regard of the design of the guide rails.

The door may be formed of a sheet material and the at least one edge of the door which is received in a slot may be folded or bent such that the edge is thicker than the sheet material. By this means the rigidity of the door is

increased, which also contributes to increasing the security of the safe.

The at least one guide rail may be provided with an

antifriction plastic profile element. Hereby the sliding displacement of the door between its open and closed positions is facilitated. The plastic profile also reduces any possible slack between the sliding door and the guiding profiles, and thereby reduces the risk of cross or skew positioning and jamming of the door. By chamfers and big radiuses on the edges of the profile element, prevention of scratches and damaging to equipment placed in the safe may be obtained.

Alternatively or additionally, the at least one guide rail and the corresponding edge of the door may be provided with cooperating bearings. The bearings may e.g. be telescopic slide roller bearings. The bearings increase the stability of the sliding motion even further and provide a smooth and steady need for force to operate the sliding door. Use of a spring mechanism between the door and cabinet may further provide for a good weight balancing of the sliding door.

Further objects and advantages of the safe according to the invention will be apparent when studying the following detailed description of embodiments and the appended claims.

Brief description of the figures

Exemplifying embodiments of the invention is described in detail below, with reference to the figures, in which:

Fig. 1 is a perspective view of the safe according to a first embodiment of the invention, at which the door is in its closed position. Fig. 2 is a perspective view corresponding to fig. 1, wherein the door is in its fully open position.

Fig. 3 is a perspective view illustrating the inside of the door of the safe shown in figs. 1 and 2. Fig. 4 is a perspective view corresponding to fig. 1, wherein the door has been removed for illustration of the inside of the safe.

Fig. 5 is a cross sectional view along line AA in fig. 1. Fig. 6 is a cross sectional view along line BB in fig. 1.

Fig. 7 is a perspective view corresponding to fig. 4, illustrating a safe according to a second embodiment.

Fig. 8 is a cross-sectional view illustrating a detail of the safe shown in fig. 7. Fig. 9 is a perspective view of a third embodiment of the safe, with some parts removed.

Fig. 10 is a cross-sectional view in enlarged scale

illustrating some details of the safe according to the third embodiment . Fig. 11 is a perspective view of the safe according to a fourth embodiment of the invention, at which the door is in its closed position.

Fig. 12 is a perspective view corresponding to fig. 11, wherein the door is in its fully open position. Fig. 13 is a perspective view illustrating the inside of the door of the safe shown in figs. 1 and 2.

Fig. 14a and 14b are perspective views from respective angles of the safe according to the fourth embodiment, wherein the door has been removed for illustration of the inside of the safe.

Fig. 15 is an elevation view from below of the safe in fig. 11. Fig. 16 is a cross sectional view along line CC in fig. 11. Fig. 17 is a cross sectional view along line DD in fig. 11.

Detailed description of exemplifying embodiments

In the following description directions, orientations and relative positions such as inward, outward, sideways, upper and lower are used. Such terms refer to the exemplifying embodiments illustrated in the figures and shall not be construed as limiting for the invention.

A safe in accordance with a first embodiment of the invention is illustrated in figs. 1-6. The safe comprises a body 10 which is formed of two bended or folded metal plates or sheets and forms in this example a rectangular box. The body comprises two opposing side walls 11, 12, a top wall 13, a bottom wall 14, a rear wall 15 and a front wall 16. A first opening 17 is arranged in the front wall 16 and defined by the edges of three flange portions 16a, 16b, 16c of the front wall 16.

The metal plate forming the bottom wall 14 is bent such that it forms a first 18 and a second 19 interior wall. The first interior wall 18 is arranged generally in parallel with the front wall 16 at a first distance from and inwardly of the front wall 16. The second interior wall 19 is arranged generally in parallel with the top 13 and bottom 14 walls and extends from the first interior wall 18 a second distance in the direction towards the front wall 16. The second distance is smaller than the first distance. The second interior wall 19 comprises engagement means in the form of sideways

projecting lugs 19a, 19b (see fig. 5). The first 18 and second 19 interior walls define together with corresponding portions of the side walls 11, 12 and of the flange portions 16b, 16c a space 110 and a second opening 111. The plane of the second opening 111 is arranged generally in parallel with the bottom wall 14 and perpendicular to the plane of the first opening 17. A door 20 is arranged linearly displaceable between an open position shown in fig. 2 and a closed position shown in fig. 1. The door 20 is formed of a metal plate or sheet and is bent inwardly at an lower edge portion 21 and two opposing side edge portions 22, 23. These edge portions 21, 22, 23 exhibit a greater thickness, in a direction perpendicular to the door's direction of displacement, than the metal plate and the central major portion of the door 20. The edge portions 22 and 23 are arranged generally in parallel with the door's direction of displacement. The lower edge portion 21 is arranged generally perpendicular to the side edge portions 22 and 23, at a first end of the door. The lower edge portion 21 comprises an inner central segment 21a and first engagement means in the form of two inner protruding tongues 21b, 21c. The tongues 21b, 21c are arranged at a respective side of the central segment 21a, and protrudes generally in parallel with the door's direction of

displacement, beyond a free edge of the central segment. The door 20 further comprises a key hole 24 and two mounting holes 25 for attachment of an optional front panel (not shown ) .

A key operated lock 30 comprising a housing 31 and a linearly displaceable dead-bolt 32 is securely fixed to the door 20, in proximity to the lower edge portion 21. The direction of displacement of the dead-bolt 32 is generally perpendicular to the door's direction of displacement. The lock 30 is mounted to the inside of the door 20 by means of a protective hard metal plate 33, in proximity to the first end of the door 20 and the edge portion 21. The hard metal plate 33 comprises a curved portion 34 which is arranged in proximity to the dead-bolt 32, for protecting the dead-bolt 32.

The body 10 comprises a first 41 and a second 42 elongated guide rail. The guide rails 41, 42 are securely fixed to the inside of the opposing side walls 11, 12. The guide rails each exhibits a generally L-shaped cross section. The first guide rail 41 defines, together with the flange portion 16b of the front wall 16, a first guide slot 43, in which the side edge portion 22 of the door is displaceably received. Upon displacement of the door 20, the edge portion 22 is guided by the guide rail 41, a portion of the inner surface of the side wall 11 and the inner surface of the flange portion 16b. The second guide rail 42 defines in a

corresponding manner, together with the flange portion 16c of the front wall 16, a second guide slot 44, in which the edge portion 23 of the door is displaceably and guidedly received. The guide rail 41 comprises an end portion 41a which is arranged in the space 110. This end portion 41a of the guide rail 41 is formed and arranged to function as a striker plate and exhibits a recess 41b for receiving the free and of the dead-bolt 32, when the dead-bolt is displaced to an extended locked position.

In use, the door 20 is displaced from the open position shown in fig. 2 to the closed position shown in fig. 1 by pushing the door upwards as shown in the figures. The side edge portions 22 and 23 of the door 20 are, during this

displacement, guided in the respective guide slot 43, 44. The opening 111 arranged at the bottom of the body 10 allows for that the lower edge portion 21 of the door 20 may be received in this opening 111. By this means the door may be fully closed without any elements or parts protruding from the body, which protruding parts could otherwise provide a point of attack when trying to break loose or tampering with the door.

When the door has reached its closed position, the side edge portions 22, 23 are fully engaged with their respective guide slot 43, 44 along the entire length of the side edge portions 22, 23. This engagement per se constitutes a strong and secure holding of the door 20 to the body 10 and prevents breaking loose the door from the body in a direction which is non-parallel with the door's direction of displacement. In the closed position, the tongues 21b, 21c of the lower edge portion 21 additionally engages the lower portions 41a, 42a of a respective guide rail 31, 42 (see fig. 6). In the closed position, segments of the edge portions 22, 23 also engage a respective lug 19a, 19b of the interior wall 19 (see fig. 5). In the closed position the lock 3 is positioned between the tongues 21b, 21c and the lugs 19a, 19b. Thereby, the door 20 is in engagement with the body 10 on all four sides of the lock, when the door is in the closed position. This

contributes to prevent access to the lock 30 by breaking loose the door 20 from the body 10, which in turn greatly enhances the security of the safe.

When the door 20 is in the closed position, the lock 30 may be operated by means of a key (not shown) for displacing the dead-bolt 32 to the extended locked position. In the locked position, the dead-bolt 32 extents through the recess 41b in the lower portion 41a of guide rail 41, and engages this lower portion 41a, which functions as a striker plate for the lock 30. The locking displacement of the dead-bolt 32 in a direction which is perpendicular to the door's direction of displacement provides for a rigid and strong locking engagement between the dead-bolt and the lower portion 41a of the guide rail 41.

In the closed position the lock 30 is confined in the

separate space 110, and protected by both the door 30 and the hard metal plate. This further prevents unauthorised access to the lock and protects the lock, in case the safe is attacked by strokes, bending actions or the like.

The arrangement of the door edge receiving guide slots 43, 44 and the lock 30, further provides a space and material saving construction, by which the manufacturing costs may be kept comparatively low and allows for that the relation between the available storage space and the outer dimensions of the safe may be kept comparatively large.

At the embodiment illustrated in figs. 7 and 8, a friction reducing plastic profile element 250 is attached to each guide rail 241 of the body 210. The profile element 250 exhibits a cross section having a generally U-shaped portion 251 in which a side edge portion of the door (not shown) is received and an attachment portion 252 by which the profile element 250 is clamped to the guide rail. The plastic profile element may however be attached to the guide rail by

alternative or additional means such that by glue, screws or the like.

At the embodiment illustrated in figs. 9 and 10 a guide rail 341 comprising two guide rail members 341', 341'' which are joined together are securely attached to the inside of a side wall 312 of the body 310. The guide rail 341 defines together with a portion of the side wall 312 and a flange portion 316c, a guide slot 344. A bent side edge portion 323 of the door 320 is received in the guide slot 344. A first bearing member 361 is attached to the guide rail 341 and a second cooperating bearing member 362 is attached to the side edge portion 323 of the door 320. At this embodiment, the above- described lower portion 41a of the guide rail 41 (cf. fig. 4) functioning as a striker plate is omitted. Instead, a dead- bolt receiving recess 370 is arranged between two tongues 371, 372 which extend in the direction toward a flange portion 316b of the front wall 316, from an interior wall 318 of the body and along the inside of the side wall 312. At this embodiment a lock (not shown) is attached to the door 320. The lock comprises a dead-bolt which is linearly

displaceable in a direction which is perpendicular to the door's direction of displacement and to the general plane of the door.

In figs. 11 — 17 a safe according to a fourth embodiment is illustrated. At the fourth embodiment the safe comprises a body 410 which is formed of two bended or folded metal plates or sheets and forms also in this example a rectangular box.

The body comprises two opposing side walls 411, 412, a top wall 413, a bottom wall 414, a rear wall 415 and a front wall 416. A first opening 417 is arranged in the front wall 416 and defined by the edges of three flange portions 416a, 416b,

416c of the front wall 416.

In correspondence with the first embodiment, the metal plate forming the bottom wall 414 is bent such that it forms a first 418 and a second 419 interior wall. The first interior wall 418 comprises downwardly projecting engagement tabs 418a, 418b. A portion of the metal plate forming the first interior wall 418 is bent forwardly such that it forms a striker plate 418c. The striker plate 418c exhibits a bolt receiving recess 418d. The first 418 and second 419 interior walls define together with corresponding portions of the side walls 411, 412 and of the flange portions 416b, 416c a space 450 and a second opening 451. The plane of the second opening 451 is arranged generally in parallel with the bottom wall 414 and

perpendicular to the plane of the first opening 417.

A door 420 is arranged linearly displaceable between an open position shown in fig. 12 and a closed position shown in fig. 11. The door 420 is formed of a metal plate or sheet. The door 420 comprises edge portions 421, 422, 423 which comprise a bottom edge portion 421 and two opposing side side edge portions 422, 423. The bottom edge portion 421 and side edge portions 422, 423 extend substantially perpendicularly inwards from the general extension plane of the door 420.

First engagement means in the form of two upwardly protruding tongues 421b, 421c are arranged at respective sides of the bottom edge portion 421. The bottom edge portion 421 further exhibit two through penetrating engagements slots 421d, 421e, which are arranged generally between the tongues 421b, 421c. The side edge portions 422 and 423 are arranged generally in parallel with the door's direction of displacement. The lower end portions of the side edge portions 422, 423 exhibit a respective flange 422a, 423a. The flanges 422a, 423a are arranged in parallel with the general extension plane of the door 420, with their free edges arranged towards each other. The lower end portions of the side edge portions 422, 423 thereby constitute bent edge portions 422b, 423b. The bent edge portions extend along the side edge portions 422, 423, from the lower edge portion 421 a distance which essentially equal to the height of the first inner wall 418 of the body 410. The door 420 further comprises a key hole 424. A key operated lock 430 comprising a housing 431 and a linearly displaceable dead-bolt 432 is securely fixed to the door 420, in proximity to the lower edge portion 421. The direction of displacement of the dead-bolt 432 is generally perpendicular to the door's direction of displacement. The lock 430 is mounted to the inside of the door 420 by means of a protective hard metal plate 433, in proximity to the first end of the door 420 and the edge portion 421. The hard metal plate 433 comprises a curved portion 434 which is arranged in proximity to the dead-bolt 432, for protecting the dead-bolt 432. The hard metal plate also comprises a bottom portion 435 arranged in parallel with the bottom edge portion 421 of the door 420, for extra protection against attacks from below.

The body 410 comprises a first 441 and a second 442 elongated guide rail. The guide rails 441, 442 are securely fixed to the inside of the opposing side walls 411, 412. An end portion 411a, 412a of each guide rail is arranged in

proximity to the bottom end of the body 410. The guide rails each exhibits a generally L-shaped cross section. A first bearing member 461, 463 is attached to each guide rail 441, 442. A corresponding second bearing member 462, 463 is attached to a respective of the side edge portions 422, 423. The first guide rail 441 defines, together with the flange portion 416b of the front wall 416, a first guide slot 443, in which the side edge portion 422 of the door is

displaceably received. The second guide rail 442 defines in a corresponding manner, together with the flange portion 416c of the front wall 416, a second guide slot 444, in which the side edge portion 423 of the door is displaceably received. The displacement of the door 420 is guided by means of the cooperating first 461, 463 and second 462, 464 bearing members . A second engagement means in the form of an elongate bar 471, 472 is rigidly fixed to each of the guide rails 441, 442. In the example shown in fig. 16 the bars 471, 472 are

constituted by flat bars which are welded to the respective guide rail 441, 442. The bars 471, 472 protrude from the respective guide rail 441, 442 towards the proximate side wall 411, 412 of the body 410. The bars 471, 472 extend along the respective guide rail 441, 442, generally from the lower end portion 441a, 442a of the guide rail 441, 442 over a distance which approximately corresponds to the height of the first interior wall 418.

As is best seen in figs. 15 and 16, the fourth embodiment provides great resistance to attempts to force the safe when the door is in its locked position. In the locked position the engagement tabs 418a, 418b of the body engages the corresponding engagement slots 421d, 421e of the door 420. The tongues 421b, 421c of the door 420 engages a

corresponding end portion 441a, 442a of the body's guide rail 441, 442 of the body 410. Additionally, the elongate bars 471, 472, which are fixed to a respective guide rail 441, 442 of the body, are arranged in front of a respective flange 422a, 423a of the door's 420 bent side edge portions 422b, 423b. By this means, at any attempt to force the door 420 forwardly, the flanges 422a, 423a will engage the respective bar 471, 472 to thereby prevent any further movement of the door 420 in a forward direction. The bars 471, 472 extend along the height of the space 450 in which the lock 430 is positioned. Thereby manipulation and tapering of the lock 430 is also prevented further. Above, exemplifying embodiments of the invention have been described. Naturally, the invention is not limited to this description but can be varied freely within the scope of the appended claims. The exemplifying key-operated lock may e.g. be replaced by a electrically operated lock or any other lock comprising a linearly displaceable lock bolt. The body and the door of the safe may instead of being manufactured of metal plates, be manufactured of any suitable material such as high strength plastic material, composite materials and metal materials other than metal plates or sheets. Further the safe may be designed with any desirable shape and

dimensions as long as it allows for the door to be linearly displaceably received in a guide slot of the body.

Claims

1. Safe comprising

- a body (10, 210, 310, 410) having walls which define a compartment and an opening (17, 417);

- a door (20, 320, 420) which is mounted to the body and linearly displaceable between a closed position, in which the opening is covered and an open position, in which the opening is not covered by the door; and

- a lock (30, 430) for allowing the door to be locked in the closed position, wherein

- the body comprises at least one guide rail (41, 42, 241, 341, 441, 442), which together with at least one of said walls (16, 210, 312, 316, 416) define a guide slot (43, 44, 344, 443, 444), which receives an edge portion (22, 23, 322, 422, 423) of said door for holding and guiding the door during said linear displacement;

- the lock is mounted to the door and comprises a linearly displaceable dead-bolt (32, 432) which, in a locked position, engages a dead-bolt receiving recess (41b, 370, 418d)

arranged in the body; and wherein

- the door (20, 420) at one edge (21, 421), which is not received in a guide slot, is provided with first engagement means (21b, 21c, 421b, 421c), which in the closed position engages an end portion (41a, 42a, 441a, 442a) of at least one guide rail (41, 42, 441, 442).

2. Safe according to claim 1, wherein a bent edge portion (22, 23, 422b, 423b) of the door (20, 420), in the closed position, engages a corresponding second engagement means (19a, 19b, 471, 472) arranged at the body (10, 410).

3. Safe according to claim 2, wherein the second engagement means comprises a bar which is fixed to a respective guide rail (441, 442).

4. Safe according to claims 2 or 3 , wherein said end portion (41a, 42a, 441a, 442a) of the at least one guide rail (41, 42, 441, 442) and said second engagement means (19a, 19b, 471, 472) are arranged at opposite sides of the lock (30, 430), when the door (20, 420) is in the closed position.

5. Safe according to any of claims 1-4, comprising two guide rails (41, 42, 441, 442) arranged at opposite sides of the opening (17, 417), each of which guide rails together with at least one wall (11, 12, 16, 411, 412, 416) define a guide slot (43, 44, 443, 444) which receives a respective edge portion (22, 23, 422, 423) of the door (20, 420).

6. Safe according to any claims 1-5, wherein a dead-bold receiving recess (41b) is arranged in at least one of said guide rails (41) .

7. Safe according to any of claims 1-5, wherein a dead-bolt receiving recess (418d) is arranged in a striker plate (418c) formed of a forwardly bent portion of a metal plate forming and interior wall 418 of the body (410).

8. Safe according to any of claims 1-5, wherein a dead-bolt receiving recess (370) is arranged at one of said walls

(312).

9. Safe according to any of claims 1-8, wherein the door (20, 320, 420) is formed of a sheet material and wherein the at least one edge portion (22, 23, 323, 422, 423) of the door which is received in a guide slot (43, 44, 344, 443, 444) is bent such that the edge portion is thicker than the sheet material.

10. Safe according to any of claims 1-9 wherein the at least one guide rail (241) is provided with an antifriction plastic profile element (250).

11. Safe according to any of claims 1-8, wherein the at least one guide rail (341, 441, 442) and the corresponding edge portion (322, 422, 423) of the door are provided with cooperating bearings (361, 362, 461, 462, 463, 464).