EP0489696A1 - Cylinder and barrel lock for office writing desk and file cabinet drawer assemblies - Google Patents
Cylinder and barrel lock for office writing desk and file cabinet drawer assemblies Download PDFInfo
- Publication number
- EP0489696A1 EP0489696A1 EP91830482A EP91830482A EP0489696A1 EP 0489696 A1 EP0489696 A1 EP 0489696A1 EP 91830482 A EP91830482 A EP 91830482A EP 91830482 A EP91830482 A EP 91830482A EP 0489696 A1 EP0489696 A1 EP 0489696A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lock
- barrel
- cylinder
- resilient element
- engaging
- 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- Withdrawn
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B9/00—Lock casings or latch-mechanism casings ; Fastening locks or fasteners or parts thereof to the wing
- E05B9/08—Fastening locks or fasteners or parts thereof, e.g. the casings of latch-bolt locks or cylinder locks to the wing
- E05B9/084—Fastening of lock cylinders, plugs or cores
- E05B9/086—Fastening of rotors, plugs or cores to an outer stator
Definitions
- the present invention relates to a cylinder and barrel lock for office writing desk and file cabinet drawer assemblies, which is so designed that the lock cylinder turning in the lock barrel can be easily replaced.
- the aim of the present invention is to overcome the above mentioned drawbacks, by providing a lock for office writing desk and file cabinet drawer assemblies which can be replaced in a very quick and simple way.
- a main object of the present invention is to provide such a lock which can be replaced directly by the user.
- Yet another object of the present invention is to provide such a lock which, in addition to being easily replaceable, can also be fitted to new drawer assemblies.
- a cylinder and barrel lock for office writing desk and file cabinet drawer assemblies comprising a lock cylinder which can turn inside a lock barrel as driven by a turning key tool, characterized in that said cylinder is removably restrained in said barrel by means of a restraining resilient element engaging said barrel and disengageable from the latter by engaging in the lock keyhole a further key tool having a set length.
- the cylinder and barrel lock for office writing desk and file cabinet drawer assemblies comprises, likewise to a conventional type of cylinder lock, a lock cylinder 1 and a lock barrel 2, bearing a number of blade elements 3, which are biassed by respective springs.
- the lock cylinder arranged in the lock barrel, at the end of which there is provided a suitable mechanical member for locking all of the drawers of a drawer assembly, can be turned by engaging in the lock keyhole 4 a specifically designed key.
- the lock barrel is provided, at the rear end portion thereof, with an inner circumferential ridge 5 thereon can rotatably engage a resilient shaped element 6.
- this resilient element is provided with a reversed-U central portion, from the bottom of which extend two symmetrical upwardly bent portions 6′.
- the lock cylinder 1 is provided with a corresponding slot which can slidably receive the above mentioned resilient element, side ridges 8 being moreover provided for restraining said resilient element by engaging the inwardly bent end portions thereof.
- the resilient element in operation, will normally caused to be downwardly displaced by the urging action provided by the above mentioned side ridges 8 so as to allow the lock to be conventionally actuated by means if a suitably contoured lock key.
- the subject lock also provides for the use of a further lock key 9, having any suitable contour which, as engaged in the keyhole 4 will engage, with one end 10 thereof, an intermediate portion of the resilient element 6 so as to push the latter upwardly.
- the cylinder 1 can be quickly and easily disengaged from the barrel 2, thereby said cylinder can be immediately replaced.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drawers Of Furniture (AREA)
- Treatment Of Fiber Materials (AREA)
- Rigid Containers With Two Or More Constituent Elements (AREA)
- Storage Of Web-Like Or Filamentary Materials (AREA)
Abstract
There is disclosed a cylinder and barrel lock for office writing desk and file cabinet drawer assemblies, in which the lock cylinder 1, provided for turning in the lock barrel 2, can be easily replaced by a suitable key tool.
The lock is characterized in that the lock cylinder 1 is removably restrained in its barrel 2 or drum by means of a resilient restraining element 6 engaging with the barrel 1.
The lock cylinder, in addition, can be disengaged from the lock barrel 2 by engaging in the keyhole a further key tool 9 having a set length.
Description
- The present invention relates to a cylinder and barrel lock for office writing desk and file cabinet drawer assemblies, which is so designed that the lock cylinder turning in the lock barrel can be easily replaced.
- As is known, the closure of a drawer assembly of that type which is conventionally used in offices and included in file cabinets or writing desks is usually performed by using a single cylinder lock which can operate drawer locking means.
- Also known is the fact that sometimes an user must have the need of changing a writing desk drawer assembly lock for a lot of reasons, such as, for example, a loss of the lock key.
- The replacement of prior locks for the above mentioned applications, however, is rather difficult since it involves a lot of operations which can be performed exclusively by skilled personnel.
- Moreover, the replacement of prior locks of the above mentioned type frequently requires a lot of dead time depending on the availability of the skilled personnel, with a consequent impossibility of assuring a proper secrecy of the filed documents.
- Accordingly, the aim of the present invention is to overcome the above mentioned drawbacks, by providing a lock for office writing desk and file cabinet drawer assemblies which can be replaced in a very quick and simple way.
- Within the scope of the mentioned aim, a main object of the present invention is to provide such a lock which can be replaced directly by the user.
- Yet another object of the present invention is to provide such a lock which, in addition to being easily replaceable, can also be fitted to new drawer assemblies.
- According to one aspect of the present invention, the above aim and objects, as well as yet other objects, which will become more apparent hereinafter, are achieved by a cylinder and barrel lock for office writing desk and file cabinet drawer assemblies, comprising a lock cylinder which can turn inside a lock barrel as driven by a turning key tool, characterized in that said cylinder is removably restrained in said barrel by means of a restraining resilient element engaging said barrel and disengageable from the latter by engaging in the lock keyhole a further key tool having a set length.
- Further characteristics and advantages of the cylinder and barrel lock for office writing desk and file cabinet drawer assemblies according to the present invention will become more apparent from the following detailed disclosure of a preferred, though not exclusive, embodiment thereof, which is illustrated, by way of an indicative, but not limitative example, in the figures of the accompanying drawings, where:
- Figure 1 is a rear view of the cylinder lock according to the present invention;
- Figures 2 and 3 are respectively a longitudinal cross-sectional view and a front view of the lock according to the present invention;
- Figures 4 and 5 show respectively two cross-sectional views, taken along the section line B-B, of the lock according to the invention and respectively related to the disengaging and engaging positions of the above mentioned resilient restraining element.
- With reference to the Figures of the accompanying drawings, the cylinder and barrel lock for office writing desk and file cabinet drawer assemblies according to the present invention comprises, likewise to a conventional type of cylinder lock, a
lock cylinder 1 and alock barrel 2, bearing a number of blade elements 3, which are biassed by respective springs. - The lock cylinder arranged in the lock barrel, at the end of which there is provided a suitable mechanical member for locking all of the drawers of a drawer assembly, can be turned by engaging in the lock keyhole 4 a specifically designed key.
- According to the invention, the lock barrel is provided, at the rear end portion thereof, with an inner
circumferential ridge 5 thereon can rotatably engage a resilient shapedelement 6. - More specifically, this resilient element, is provided with a reversed-U central portion, from the bottom of which extend two symmetrical upwardly
bent portions 6′. - The
lock cylinder 1, in turn, is provided with a corresponding slot which can slidably receive the above mentioned resilient element,side ridges 8 being moreover provided for restraining said resilient element by engaging the inwardly bent end portions thereof. - The resilient element, in operation, will normally caused to be downwardly displaced by the urging action provided by the above mentioned
side ridges 8 so as to allow the lock to be conventionally actuated by means if a suitably contoured lock key. - According to a further aspect of the present invention, the subject lock also provides for the use of a
further lock key 9, having any suitable contour which, as engaged in thekeyhole 4 will engage, with oneend 10 thereof, an intermediate portion of theresilient element 6 so as to push the latter upwardly. - Thus, owing to the disclosed arrangement, the
cylinder 1 can be quickly and easily disengaged from thebarrel 2, thereby said cylinder can be immediately replaced. - In this connection it should be pointed out that the disengaging of the above mentioned key will cause the resilient element to be automatically downwardly released, so as to bring it again to its cylinder restraining position.
- More specifically, the downwardly displacement of said resilient element will be assured by the biassing of the
ridges 5 on theouter arms 6 of said resilient element. - The withdrawing and replacement of the lock cylinder, as it should be apparent, will be performed with the lock in its drawer releasing position.
- From the above disclosure and the observation of the Figures of the accompanying drawings, the great functionality and facility of use characterizing the cylinder and barrel lock for office writing desk and file cabinet drawer assemblies according to the invention will be self evident.
- While the invention has been disclosed and illustrated with reference to a preferred embodiment thereof, it should be apparent that the disclosed embodiment is susceptible to several modifications and variations all of which will come within the spirit and scope of the appended claims.
Claims (4)
- A cylinder and barrel lock for office writing desk and file cabinet drawer assemblies, comprising a lock cylinder which can turn inside a lock barrel as driven by a turning key tool, characterized in that said cylinder is removably restrained in said barrel by means of a restraining resilient element engaging said barrel and disengageable from the latter by engaging in the lock keyhole a further key tool having a set length.
- A lock according to Claim 1, characterized in that said lock barrel is provided, at a rear end portion thereof, with an inner circumferential ridge thereon can be rotatably engaged said resilient element, said resilient element including a reversed -U central portion from the bottom of which there extend two upwardly bent symmetrial portions.
- A lock according to the preceding Claims, characterized in that said lock cylinder is provided with a radially extending slot in which said resilient element is slidably restrained, said resilient element being restrained by side ridges engaging corresponding inwardly bent end portions of said resilient element.
- A lock according to the preceding Claims, characterized in that a further lock key is provided for operating said lock, said key being arranged to engage, by an end portion thereof, an intermediate portion of said resilient element so as to upwardly push said resilient element.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2199390 | 1990-11-08 | ||
IT02199390A IT1245491B (en) | 1990-11-08 | 1990-11-08 | CYLINDER AND DRUM LOCK, FOR CHEST OF DRAWERS AND OFFICE ARCHIVES, STRUCTURED TO ALLOW THE INTERCHANGEABILITY OF THE ROTATING CYLINDER IN THE SAME DRUM |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0489696A1 true EP0489696A1 (en) | 1992-06-10 |
Family
ID=11189920
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91830482A Withdrawn EP0489696A1 (en) | 1990-11-08 | 1991-11-07 | Cylinder and barrel lock for office writing desk and file cabinet drawer assemblies |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0489696A1 (en) |
IT (1) | IT1245491B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1842987A1 (en) * | 2006-04-06 | 2007-10-10 | Valeo Securite Habitacle S.A.S. | Method of blocking a translation movement by clipping a rotor in a lock stator |
FR2924735A1 (en) * | 2007-12-11 | 2009-06-12 | Valeo Securite Habitacle Sas | ROTOR FOR LOCK AND ASSOCIATED LATCH |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2000829A (en) * | 1930-04-23 | 1935-05-07 | Falk Morris | Lock |
US2011003A (en) * | 1933-03-31 | 1935-08-13 | Briggs & Stratton Corp | Cylinder lock |
US4866964A (en) * | 1988-12-28 | 1989-09-19 | Medeco Security Locks, Inc. | Removable core lock |
-
1990
- 1990-11-08 IT IT02199390A patent/IT1245491B/en active IP Right Grant
-
1991
- 1991-11-07 EP EP91830482A patent/EP0489696A1/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2000829A (en) * | 1930-04-23 | 1935-05-07 | Falk Morris | Lock |
US2011003A (en) * | 1933-03-31 | 1935-08-13 | Briggs & Stratton Corp | Cylinder lock |
US4866964A (en) * | 1988-12-28 | 1989-09-19 | Medeco Security Locks, Inc. | Removable core lock |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1842987A1 (en) * | 2006-04-06 | 2007-10-10 | Valeo Securite Habitacle S.A.S. | Method of blocking a translation movement by clipping a rotor in a lock stator |
FR2899618A1 (en) * | 2006-04-06 | 2007-10-12 | Valeo Securite Habitacle Sas | METHOD OF BLOCKING INTO TRANSLATION BY CLIPPING A ROTOR IN A LOCK STATOR |
FR2924735A1 (en) * | 2007-12-11 | 2009-06-12 | Valeo Securite Habitacle Sas | ROTOR FOR LOCK AND ASSOCIATED LATCH |
WO2009074507A1 (en) * | 2007-12-11 | 2009-06-18 | Valeo Securite Habitacle | Rotor for a lock, and associated lock |
JP2011506171A (en) * | 2007-12-11 | 2011-03-03 | ヴァレオ セキュリテ アビタクル | Rotor for locking mechanism and corresponding locking mechanism |
Also Published As
Publication number | Publication date |
---|---|
IT9021993A0 (en) | 1990-11-08 |
IT1245491B (en) | 1994-09-27 |
IT9021993A1 (en) | 1992-05-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB GR LI LU NL SE |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
18W | Application withdrawn |
Withdrawal date: 19921215 |