AU2016101729A4 - MFB CLASS B and CLASS C LOCKING SYSTEM CONFIGURATION The innovation relates to an mechanical lock configuration for use in locking high security enclosures and containers typically used in the secure containment of 19” rack mounted equipment. Aspects of this locking system configuration may find application for in locking other closures doors. - Google Patents

Abstract

Patents Act 1990 COMPLETE SPECIFICATION INNOVATION PATENT MFB CLASS B and CLASS C LOCKING SYSTEM CONFIGURATION The invention abstract is described in the following statement. ma MFB CLASS B and CLASS C LOCKING SYSTEM CONFIGURATION Abstract [0001] The innovation relates to an mechanical lock configuration for use in locking high security enclosures and containers typically used in the secure containment of 19" rack mounted equipment. Aspects of this locking system configuration may find application for in locking other closures doors. BACKGROUND TO THE INVENTION [0002] Traditionally the locking systems used in 19" computer enclosures have either been of a very basic and low security option or complex high security locks which are inflexible in the placements on the opening doors of the 19" computer enclosures. Traditionally high security locking systems impede on the allowable area of the opening doors for ventilation or viewing windows. This was done by mounting the locking system in a horizontal plane with the bolt work designed to function side by side. Making the lock handle and multipoint locking system adjacent to the, key lock or electronic lock. This type of configuration meant additional space was taken up on the width of the door meaning a reduction to the venting area or viewing window. The invention has allowed the venting area or viewing window to have a much wider configuration, the end user can make greater use of the door for the intended use. MFB Products Pty Ltd ClZ

Description

2 2016101729 27 Sep 2016

MFB CLASS B and CLASS C LOCKING SYSTEM

CONFIGURATION

FIELD OF INVENTION

[0001] The innovation relates to an mechanical lock configuration for use in locking high security enclosures and containers typically used in the secure containment of 19" rack mounted equipment. Aspects of this locking system configuration may find application for in locking other closures doors.

BACKGROUND TO THE INVENTION

[0002] Traditionally the locking systems used in 19" computer enclosures have either been of a very basic and low security option or complex high security locks which are inflexible in the placements on the opening doors of the 19" computer enclosures. Traditionally high security locking systems impede on the allowable area of the opening doors for ventilation or viewing windows. This was done by mounting the locking system in a horizontal plane with the bolt work designed to function side by side. Making the lock handle and multipoint locking system adjacent to the, key lock or electronic lock. This type of configuration meant additional space was taken up on the width of the door meaning a reduction to the venting area or viewing window. The invention has allowed the venting area or viewing window to have a much wider configuration, the end user can make greater use of the door for the intended use.

[0003] Any discussion of document, devices acts or knowledge in this specification is included to explain the context of the invention. It should not be taken as an 3 2016101729 27 Sep 2016 admission that any of the material formed part of the prior art base or common general knowledge in the relevant art on or before the priority of the claims herein.

[0004] An objective is to improve lock configurations, particularly to increase the useable door space for venting or viewing windows. Another objective is to improve the locking security of the high security enclosures. Additionally, to maintain a vertical locking system.

[0005] Throughout this specification including the claims, reference is made to "high security enclosures" or "high security containers" and these phrases are intended to identify any known enclosure or container which is classified as a high security enclosure or container Class B or Class C by Security Construction and Equipment Committee (SCEC).

SUMMARY OF THE INVENTION

[0006] In a first aspect the present invention provides a lockable restraining mechanism for restraining a security door in a closed state with three locking points. Said lockable restraining system latch assembly having a rotational movement around the pivot point of the external handle with an unlocked position and a locked position whereby, in use, in said locked position the rotating locking latch will engage with the vertical locking receiver in the security enclosure or container frame, further to this, single locking point as the rotating locking mechanism rotates to the locked position two locking rods extent through the top and bottom of the door to engage with the door frame. 2016101729 27 Sep 2016 4 [0007] The locking system mechanism may further include lock positioning sensors which can identify if the lock is in the unlocked or locked position.

[0008] The locking system mechanism includes the use of tamper resistant materials to prevent and show evidence of tampering of external tampering of the locking system mechanism.

[0009] The locking mechanism will have a provision to use a third party electronic or mechanical key lock.

[0010] In a second aspect the locking system mechanism maybe used to lock doors other than that fitted to said enclosures or containers [0011] In a third aspect the locking system mechanism maybe used on various sized and shaped doors at any position or orientation that allows the locking system to function as described herein. 5 2016101729 27 Sep 2016

BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is an exploded perspective view of the locking mechanism, looking from the rear of the locking mechanism;

DESCRIPTION OF THE PREFERRED EMBODIMENTS SHOWN IN THE DRAWINGS

[0013] The annexed drawings represent the embodiment of a locking system mechanism, MFB Class B or Class C locking mechanism fitted to an enclosure or container with swing opening door.

[0014] While the drawings show a normal embodiment, variation and modification of the same are possible with the scope of the annexed claims.

[0015] The locking system mechanism in accordance with this invention comprises of a door handle spindle(4) which is mounted through the outside door opening(not shown) a Manganese plate(16) and the lock plate sub assembly(6) which is spaced off the door skin by the two door plate spacers (15) this door handle spindle(4) has a door handle fitted(7) with a solid dowel pin(l) to retain the handle, this door handle spindle(4) then passes through the door boltwork spigot(14) and is retained in position by a cir-clip(2). The door handle drive cam (9) is located by the "D" shape on the door handle spindle(4) this "D" shape provides the rotational drive to the locking mechanism when the door handle is rotated to either the open (unlocked) or closed (locked) positions this plate is retained by a locking nut(17). The door handle drive cam(9) is mounted to the door lock cam(10) by two screws(11) these screws and lock cam provide the movement to lock and unlock 2016101729 27 Sep 2016 6 the mechanism, by rotating the lock cam(10) and pulling or pushing the locking rods in a vertical direction (Not shown), at the same time the door handle drive cam(9) rotates the door cam disc sub assembly(5) to corresponding locked or unlocked positions each of the positions are governed by the door lock cam stop(13) in three locations. When the door lock cam(13) is in the locked position it enables the third party lock(8) to either withdrawal or insert the door lock bolt extension(3) which is retained to the third party lock(8) by two screws(12). With the door lock bolt extension(3) withdrawn the lock mechanism is in the unlocked state when the door lock bolt extension is in inserted to engage the door cam disc sub assembly(5) it stops the lock mechanism being rotated and the mechanism is in the locked position.

MFB PRODUCTS PTY LTD

Claims (12)

1. MFB CLASS B and CLASS C LOCKING SYSTEM CLAIMS THE CLAIMS DEFINING THE INVETION ARE AS FOLLOWS:

   1. A locking system mechanism for securely locking Class B and Class C enclosures or containers, said mechanism including bolt assembly having a rotationally moveable latch and vertical locking rods between locked and unlocked position whereby, in use the third party lock moves to the unlocked position allowing the handle, spindle and associated rod mounting hardware to rotate independently of the third party lock and associated locking cam. The handle spindle and associated rod mounting hardware can now rotate freely between the locked and unlocked positions allowing the door to be held in the closed position without engaging the third party lock and associated locking cam. The third party lock and associated lock cam is unable to rotate to the locked position unless the handle, spindle and associated rod mounting hardware is in the locked position.
2. 2. A locking system mechanism according to claim 1 further configured with micro switch limit switches to detect the locking mechanisms locked or unlocked status.
3. 3. A locking system mechanism that conforms to the SCEC High security cabinet or enclosure rating for Class B or Class C.
4. 4. A Locking system mechanism that according to claim 1 to 3 in a vertical orientation as per figure 1.
5. 5. The design of the door drive handle cam (9) and door handle spindle(4) are of such that if the door handle is over loaded when in the locked or unlocked position the applied rotational torque the door handle drive cam will shear the door handle drive cam allowing the door handle to rotate freely. The locking system mechanism will maintain the last known position locked or unlocked, the lock system status cannot be changed further by rotation of the door handle.
6. 6. The door handle spindle is designed with a shear/break point whereby if excessive force is applied in any direction to the door handle the spindle will shear/break in such a manner to allow the door handle to fall from the cabinet leaving the remainder of the spindle retained inside the locking system mechanism and the said locking mechanism will retain the last known state, locked or unlocked.
7. 7. The spindle features a retaining spigot that if an attempt to extract the spindle through the front of the cabinet is made the said spigot on the door handle spindle will engage on the boltwork spigot which is securely mounted between the manganese plate at the front of the door and the steel lock plate sub assembly and will not allow the spindle to be pulled through the front of the door.
8. 8. The door lock cam has been design in such a fashion to retain the door handle spindle from being pushed into the interior of the enclosure. This design feature denies possible access to the interior of the cabinet through the door handle spindle cavity.
9. 9. The lock plate sub assembly is spaced off the front door sheetmetal to allow for front mounting of third party locking systems this offset allows for the mounting of the manganese plate, this spacer ensures that there is maximum security protection to the locking system mechanism by eliminating the requirement to place additional holes in the said manganese plate.
10. 10. The locking system mechanism travel stops are positioned in such a manner to ensure accurate locked and unlocked positions of the mechanism. The said stops also provide third party locking system shear protection, the said travel stops will transfer all damaging force that has been applied to the locking system when in the locked position, this force is distributed to the lock plate sub assembly.
11. 11. The third party lock bolt extension has been designed to allow the door cam disc sub assembly to maintain a flush mounting to the lock plate sub assembly, the said lock bolt extension will engage the door cam disc sub assembly in such a fashion that it will not allow the locking system mechanism to rotate from the locked position. The lock bolt extension also provides shear force loading protection to the third party locking system, the lock bolt extension has been designed to protect the third party locking system.
12. 12. The door boltwork spigot, manganese plate, lock plate subassembly and door cam disc subassembly have all been designed to eliminate axial rock, rotational play and lock system mechanism end float, by assembling the door boltwork spigot between the manganese plate and the lock plate subassembly, fitting the door cam disc subassembly and retaining circlip ensure the precision fitment to eliminate any possible play in the locking system's mechanism.