CA1061849A - Lock and interlock mechanism - Google Patents
Lock and interlock mechanismInfo
- Publication number
- CA1061849A CA1061849A CA219,818A CA219818A CA1061849A CA 1061849 A CA1061849 A CA 1061849A CA 219818 A CA219818 A CA 219818A CA 1061849 A CA1061849 A CA 1061849A
- Authority
- CA
- Canada
- Prior art keywords
- lock
- cabinet
- lock bar
- shelves
- doors
- 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.)
- Expired
Links
- 230000005484 gravity Effects 0.000 claims 1
- 230000000903 blocking effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B65/00—Locks or fastenings for special use
- E05B65/46—Locks or fastenings for special use for drawers
- E05B65/462—Locks or fastenings for special use for drawers for two or more drawers
- E05B65/463—Drawer interlock or anti-tilt mechanisms, i.e. when one drawer is open, at least one of the remaining drawers is locked
Landscapes
- Drawers Of Furniture (AREA)
- Wing Frames And Configurations (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A multiple shelf cabinet has a plurality of slidable shelves and a plurality of pivoted doors closing off said shelves.
A combined shelf and door locking mechanism acts to either by means of a key lock prevent all of the doors from being opened and shelves from being slid outwardly or by an interlock device, prevent a second shelf from being slid outwardly when a first shelf is slid out. The locking mechanism includes a vertical locking bar having a plurality of hooking members for holding the doors closed and a plurality of cam members carried by the shelves that engage means on the locking bar to move the same to a locking position as a shelf is slid out.
A multiple shelf cabinet has a plurality of slidable shelves and a plurality of pivoted doors closing off said shelves.
A combined shelf and door locking mechanism acts to either by means of a key lock prevent all of the doors from being opened and shelves from being slid outwardly or by an interlock device, prevent a second shelf from being slid outwardly when a first shelf is slid out. The locking mechanism includes a vertical locking bar having a plurality of hooking members for holding the doors closed and a plurality of cam members carried by the shelves that engage means on the locking bar to move the same to a locking position as a shelf is slid out.
Description
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This invention relates to cabinets and more particularly to locking and interlocking mechanism for doors and drawers in such cabinets.
The use of interlocking devices in cabinets that have sliding drawers to prevent more than one drawer to be open at one time is well known. These devices generally include some sort of device that is engaged by means carried on a drawPr being opened~
and which device is moved to a position wherein other blocking means . . .
thereon are positioned to prevent opening of any other drawer. These ~- 10 devices often have a key operated device that acts to hold the device ~ -.. . ~ ,, :
'J' ~ in position to prevent any drawer from being opened. --Where the drawers are of the "shelf type" with open fronts to permit access to the contents of the drawer or shelf, such a ~ . < .
~ ~, locking arrangement will not prevent access to the contents of the ~
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cabinet. In such a case closure doors can be provided that are ~-y~j pivotable about their upper ends and are slidable into the cabinet i! out of the way in a horizontal position above the shelf. Lock means ~- can be provided to either individually lock the doors or mechanism -s installed that will simultaneously lock all of the doors.
It is an object of this invention to provide a cabinet .. . . . .
I~,r ' ' having sliding drawers and pivoted doors with a locking mechanism,....................................................................... .
~ that simultaneously locks both the doors and drawers.
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` It is a further object to provide an interlock mechanism ..... .
which can be key operated to lock all drawers and doors.
A still further object is to provide an interlock mechanism ,".,,;
-~-i which will prevent more than one drawer to be opened at one time but will permit any number of doors to be open.
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In accordance with one broad aspect, the invention ~: relates to a cabinet having top, bottom, rear and side walls and an open front, a plurality of slidable shelves arranged - to slide from an inner position out the open front to an exposed position and a plurality of pivoted doors swingable between vertical closed positions closing access to the 7 shelves and horizontal open positions permitting access to the shelves, each door associated with one shelf, a combined . lock means for simultaneously preventing the doors from being moved from their closed positions and preventing sliding . of said shelves from their inner positions, said lock means -~, , including a vertically movable lock bar movable between a ~, .
~;~ locking and an unlocking position, said lock bar having lock ~:: device means engaging said doors when said lock bar is in .; locking position and said doors are in closed position said ~- lock devlce means engaging said shelves to prevent the same ~-~ from sliding out when the lock bar is in its locking position.
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These and other objects and advantages wi11 be readily apparent from the followin~ disclosure and accompanying drawings in which:
Fig. 1 is a perspective view of a file cabinet incorporating the invention;
Fig. 2 is a cross-sectional view of the cabinet with one -of the drawers in open position;
Fig. 3 is an enlarged perspective view of the locking bar mechanism of Fig. 2;
~,- 10 Fig. 4 is a similar view showing one form of cam and abutment device carried on the side of the sliding shelf;
. . .
Fig. ~ is an enlarged cross-sectional view of the cabinet ; of Fig. 2; -~-~ Fig. 6 is a cross-sectional view showing a key lock mechanism; ~ -..... .
Fig. 7 is a cross-sectiGnal view taken on the line 7-7 of ...
Fig. 6;
Fig. 8 is a cross-sPctional view taken on the line 8-3 of Fig. 5;
Fig. 9 is a view similar to Fi~. 5 showing another form .
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Fig. 10 is a cross-sectional view taken on the line 10-10 of Fig. 9; and Fig. 11 is an enlarged view taken on the line 11-11 of Fig. 10.
In the embodirllent shown in Figs. 1 to 8, the invention is i shown in a multiple drawer cabinet generally indicated 1, and which .... i ~ j has a plurality of pivoted norrnally vertical doors 3. The doors 3 ~,,:;
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each close off acces to an open faced drawer or shelf 5 which can be slid outward from within the cabinet on conventional telescoping supports 7. The doors 3 are pivoted on rollers not shown which ride in tracks 9 so that after a door is swung up to a horizontal position it can be slid back into the cabinet as seen in Fig. 2 with the door supported on the track 9.
~ The locking device includes an elongated bar 11 vertically ':t;, arranged inside of the cabinet near the front thereof as seen in Fig. 2. The bar 11 is biased by spring 13 upward to an unlocking ~; 10 position. At the upper end of the bar 11 is a bracket ~ember 23 having a portion 14 that passes through an aperture in a bracket 16 (Figs. 6 and 7) attached to the front of the cabinet. This serves ~ ;, as a guide for movement of the bar up and down. The lower end of the bar 11 passes through a similar aperture in the cabinet as seen in Fig. 2.
As seen in Fig. 3 the locking bar carries a plurality of forwardly extending bracket members 15 (only one of which is shown in Fig. 3). The brackets each have a hook portion 17 and a roller 19 extending outward. The hooks 17 are adapted, when in a raised f. l 20 position, to enter into apertures 21 formed in the doors 3 as seen .
in Fig. 5. When the lock bar 11 is in its lower or locking position S f the hook 17 prevents the door from being opened.
',., The bracket 23 on the top part of the bar 11 has a slot 25 ... . .
` through which an eccentric pin 27 protrudes. The pin 27 is carried on a rotatable portion 29 of a key lock device 31. It will be obvious that as the lock is rotated by a key in the position illustrated in Fig. 3, the pin 27 will act on the bracket to force the bracket and ., ~:, bar 11 downward against the spring 13 into locking position. On the ~
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other hand, the slot 25 permits free up and do~ln movement of the - bracket and-bar when the pin 27 is in its upper position.
; Mounted on the side of each shelf drawer are elongatedguide members 2 having an inclined cam portion 33. A second combined ` blocking and cam portion 35 is located below the cam portion 33. The rollers 19 carried on the lock bar 11 are positioned to engage the underside of the cam 33 when the bar 11 is in its upper or unlocking position. When the bar 11 is in its lower or locking position the rollers 19 engage the vertical face on the blQcking or abutment portion 35.
~ The operation of the device of Figs. 1 to 8 will now be described. When all of the doors 3 are closed and the key lock 31 ... .
is in its locking condition, the pin 27 holds the bracket 23 and ` ~` bar 11 in its lower position against spring 13. In this position . ~ . .
x j the hooks 17 prevent any of the doors that are closed from being .~
~ ., opened. At the same time the rollers 19 prevent the shelf drawers '3 ',~ from being opened because the abutment 35 contacts the rollers. When , l the key lock is opened the spring 13 raises the bar 11 and the hooks 17 are raised to permit opening of any of the doors 3 to be opened. The .
~ 20 rollers 19 are now raised above the level of the abut~ent 35. As any ~', ., ~ - drawer is opened, the cam portion 33 thereon engages the respective . ~ .
roller 19 and forces the roller and lock bar down into the locking position. The roller rides on the underside of the guide 32. No i other drawer or door can then be opened. As the opened drawer is ~i ~
~ ; returned the roller again rides on the underside of the guide 32.
t.''~ The inclined portion 36 on the member 35 aids in moving the roller and bar upward into unlocking position.
A modified arrangement is shown in Figs. 9, 10 and 11. In ~; ~ that form the locking bar 41 is similar to that in Figs. 1 to 8 , ` ~, , ,~
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except that operating pins or studs 43 are threaded in apertures in the lock bar. The clearance between the hexagonal portion 49 and shoulder 47 which engages the bar 11 penmits free up and down movement of the stud in a slot 50 formed in the inner sidewall 52 of the cabinet. A spring clip device 51 is attached to the sidewall 52 that engages the pin 43. A detent portion 54 is urged outward by the pin 43 as it moves between the lower solid line position of Fig. 11 :
~;~ and the upper broken line position. This serves to hold the lock ~` bar and pins in their upper unlocked positions~
The pins 43 function as both the door lock and drawer lock.
The doors 55 contain a hook portion 57 that the pin 43 engages when - in its lower position. The same pin engages the front vertical face 67 of a molded assembly 61 which includes an upper inclined cam ~;, portion 63 and a low cam portion 65. Unlike the embodiment of Figs. 1 to 8, that of Figs. 9 to 11 does not have a horizontal track ~, or guide 32 to hold the lock mechanism in its lower locking position ~, since the spring clip 51 serves to hold the bar in either position.
The lower cam 65 serves to positively move the pin and lock bar up when the drawer is closed.
The operation of the device of Figs. 9 to 11 is basically ~- the same as that of Figs. 1 to 8. The lock bar 41 is positively moved up and down by the key lock but when in unlocked position the ~; ` bar can be independently moved up and down by the cams 63 and 65 as a drawer is opened and closed. The spring clip 51 serves to hold the J
''; ' bar up or down.
It will be obvious that changes and modifications can be .
?,~ made without departing from the inventinn. For example, the operaticn of the lock bar could be reversed with the upper position being the ~ .
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This invention relates to cabinets and more particularly to locking and interlocking mechanism for doors and drawers in such cabinets.
The use of interlocking devices in cabinets that have sliding drawers to prevent more than one drawer to be open at one time is well known. These devices generally include some sort of device that is engaged by means carried on a drawPr being opened~
and which device is moved to a position wherein other blocking means . . .
thereon are positioned to prevent opening of any other drawer. These ~- 10 devices often have a key operated device that acts to hold the device ~ -.. . ~ ,, :
'J' ~ in position to prevent any drawer from being opened. --Where the drawers are of the "shelf type" with open fronts to permit access to the contents of the drawer or shelf, such a ~ . < .
~ ~, locking arrangement will not prevent access to the contents of the ~
~ -j .
cabinet. In such a case closure doors can be provided that are ~-y~j pivotable about their upper ends and are slidable into the cabinet i! out of the way in a horizontal position above the shelf. Lock means ~- can be provided to either individually lock the doors or mechanism -s installed that will simultaneously lock all of the doors.
It is an object of this invention to provide a cabinet .. . . . .
I~,r ' ' having sliding drawers and pivoted doors with a locking mechanism,....................................................................... .
~ that simultaneously locks both the doors and drawers.
:~ .
` It is a further object to provide an interlock mechanism ..... .
which can be key operated to lock all drawers and doors.
A still further object is to provide an interlock mechanism ,".,,;
-~-i which will prevent more than one drawer to be opened at one time but will permit any number of doors to be open.
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.
In accordance with one broad aspect, the invention ~: relates to a cabinet having top, bottom, rear and side walls and an open front, a plurality of slidable shelves arranged - to slide from an inner position out the open front to an exposed position and a plurality of pivoted doors swingable between vertical closed positions closing access to the 7 shelves and horizontal open positions permitting access to the shelves, each door associated with one shelf, a combined . lock means for simultaneously preventing the doors from being moved from their closed positions and preventing sliding . of said shelves from their inner positions, said lock means -~, , including a vertically movable lock bar movable between a ~, .
~;~ locking and an unlocking position, said lock bar having lock ~:: device means engaging said doors when said lock bar is in .; locking position and said doors are in closed position said ~- lock devlce means engaging said shelves to prevent the same ~-~ from sliding out when the lock bar is in its locking position.
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These and other objects and advantages wi11 be readily apparent from the followin~ disclosure and accompanying drawings in which:
Fig. 1 is a perspective view of a file cabinet incorporating the invention;
Fig. 2 is a cross-sectional view of the cabinet with one -of the drawers in open position;
Fig. 3 is an enlarged perspective view of the locking bar mechanism of Fig. 2;
~,- 10 Fig. 4 is a similar view showing one form of cam and abutment device carried on the side of the sliding shelf;
. . .
Fig. ~ is an enlarged cross-sectional view of the cabinet ; of Fig. 2; -~-~ Fig. 6 is a cross-sectional view showing a key lock mechanism; ~ -..... .
Fig. 7 is a cross-sectiGnal view taken on the line 7-7 of ...
Fig. 6;
Fig. 8 is a cross-sPctional view taken on the line 8-3 of Fig. 5;
Fig. 9 is a view similar to Fi~. 5 showing another form .
,.~ - of the invPntion;
.. ;. ' .
Fig. 10 is a cross-sectional view taken on the line 10-10 of Fig. 9; and Fig. 11 is an enlarged view taken on the line 11-11 of Fig. 10.
In the embodirllent shown in Figs. 1 to 8, the invention is i shown in a multiple drawer cabinet generally indicated 1, and which .... i ~ j has a plurality of pivoted norrnally vertical doors 3. The doors 3 ~,,:;
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each close off acces to an open faced drawer or shelf 5 which can be slid outward from within the cabinet on conventional telescoping supports 7. The doors 3 are pivoted on rollers not shown which ride in tracks 9 so that after a door is swung up to a horizontal position it can be slid back into the cabinet as seen in Fig. 2 with the door supported on the track 9.
~ The locking device includes an elongated bar 11 vertically ':t;, arranged inside of the cabinet near the front thereof as seen in Fig. 2. The bar 11 is biased by spring 13 upward to an unlocking ~; 10 position. At the upper end of the bar 11 is a bracket ~ember 23 having a portion 14 that passes through an aperture in a bracket 16 (Figs. 6 and 7) attached to the front of the cabinet. This serves ~ ;, as a guide for movement of the bar up and down. The lower end of the bar 11 passes through a similar aperture in the cabinet as seen in Fig. 2.
As seen in Fig. 3 the locking bar carries a plurality of forwardly extending bracket members 15 (only one of which is shown in Fig. 3). The brackets each have a hook portion 17 and a roller 19 extending outward. The hooks 17 are adapted, when in a raised f. l 20 position, to enter into apertures 21 formed in the doors 3 as seen .
in Fig. 5. When the lock bar 11 is in its lower or locking position S f the hook 17 prevents the door from being opened.
',., The bracket 23 on the top part of the bar 11 has a slot 25 ... . .
` through which an eccentric pin 27 protrudes. The pin 27 is carried on a rotatable portion 29 of a key lock device 31. It will be obvious that as the lock is rotated by a key in the position illustrated in Fig. 3, the pin 27 will act on the bracket to force the bracket and ., ~:, bar 11 downward against the spring 13 into locking position. On the ~
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other hand, the slot 25 permits free up and do~ln movement of the - bracket and-bar when the pin 27 is in its upper position.
; Mounted on the side of each shelf drawer are elongatedguide members 2 having an inclined cam portion 33. A second combined ` blocking and cam portion 35 is located below the cam portion 33. The rollers 19 carried on the lock bar 11 are positioned to engage the underside of the cam 33 when the bar 11 is in its upper or unlocking position. When the bar 11 is in its lower or locking position the rollers 19 engage the vertical face on the blQcking or abutment portion 35.
~ The operation of the device of Figs. 1 to 8 will now be described. When all of the doors 3 are closed and the key lock 31 ... .
is in its locking condition, the pin 27 holds the bracket 23 and ` ~` bar 11 in its lower position against spring 13. In this position . ~ . .
x j the hooks 17 prevent any of the doors that are closed from being .~
~ ., opened. At the same time the rollers 19 prevent the shelf drawers '3 ',~ from being opened because the abutment 35 contacts the rollers. When , l the key lock is opened the spring 13 raises the bar 11 and the hooks 17 are raised to permit opening of any of the doors 3 to be opened. The .
~ 20 rollers 19 are now raised above the level of the abut~ent 35. As any ~', ., ~ - drawer is opened, the cam portion 33 thereon engages the respective . ~ .
roller 19 and forces the roller and lock bar down into the locking position. The roller rides on the underside of the guide 32. No i other drawer or door can then be opened. As the opened drawer is ~i ~
~ ; returned the roller again rides on the underside of the guide 32.
t.''~ The inclined portion 36 on the member 35 aids in moving the roller and bar upward into unlocking position.
A modified arrangement is shown in Figs. 9, 10 and 11. In ~; ~ that form the locking bar 41 is similar to that in Figs. 1 to 8 , ` ~, , ,~
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except that operating pins or studs 43 are threaded in apertures in the lock bar. The clearance between the hexagonal portion 49 and shoulder 47 which engages the bar 11 penmits free up and down movement of the stud in a slot 50 formed in the inner sidewall 52 of the cabinet. A spring clip device 51 is attached to the sidewall 52 that engages the pin 43. A detent portion 54 is urged outward by the pin 43 as it moves between the lower solid line position of Fig. 11 :
~;~ and the upper broken line position. This serves to hold the lock ~` bar and pins in their upper unlocked positions~
The pins 43 function as both the door lock and drawer lock.
The doors 55 contain a hook portion 57 that the pin 43 engages when - in its lower position. The same pin engages the front vertical face 67 of a molded assembly 61 which includes an upper inclined cam ~;, portion 63 and a low cam portion 65. Unlike the embodiment of Figs. 1 to 8, that of Figs. 9 to 11 does not have a horizontal track ~, or guide 32 to hold the lock mechanism in its lower locking position ~, since the spring clip 51 serves to hold the bar in either position.
The lower cam 65 serves to positively move the pin and lock bar up when the drawer is closed.
The operation of the device of Figs. 9 to 11 is basically ~- the same as that of Figs. 1 to 8. The lock bar 41 is positively moved up and down by the key lock but when in unlocked position the ~; ` bar can be independently moved up and down by the cams 63 and 65 as a drawer is opened and closed. The spring clip 51 serves to hold the J
''; ' bar up or down.
It will be obvious that changes and modifications can be .
?,~ made without departing from the inventinn. For example, the operaticn of the lock bar could be reversed with the upper position being the ~ .
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:, . D 4439 `~: locking position and the lower the unlocked position. This and other ~' changes will be apparent to those skilled in the art and such changes are deemed to be within the scope of the invention which is limited only by the following claims:
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Claims (13)
1. A cabinet having top, bottom, rear and side walls and an open front, a plurality of slidable shelves arranged to slide from an inner position out the open front to an exposed position and a plurality of pivoted doors swingable between vertical closed positions closing access to the shelves and horizontal open positions permitting access to the shelves, each door associated with one shelf, a combined lock means for simultaneously preventing the doors from being moved from their closed positions and preventing sliding of said shelves from their inner positions, said lock means including a vertically movable lock bar movable between a locking and an unlocking position, said lock bar having lock device means engaging said doors when said lock bar is in locking position and said doors are in closed position said lock device means engaging said shelves to prevent the same from sliding out when the lock bar is in its locking position.
2. The cabinet of Claim 1 wherein key lock means are provided on said cabinet arranged to hold said lock bar in its locking position to prevent opening of said doors or sliding of said shelves.
3. The cabinet of Claim 1 wherein said shelves carry operator means thereon arranged to move the lock bar to its locking position when any of the shelves are moved from their inner position toward their outer position.
4. The cabinet of Claim 3 wherein said operator means comprises cam means arranged to engage said lock device means as the shelves are opened.
5. The cabinet of Claim 4 wherein said lock bar is arranged to normally move to its unlocking position and said cam means acts to overcome said normal movement.
6. The cabinet of Claim 5 wherein said lock bar is spring biased to its unlocking position.
7. The cabinet of Claim 5 wherein said lock bar is moved by gravity to its unlocking position.
8. The cabinet of claim 5 wherein said lock device means includes a plurality of hook members carried by and protruding forwardly from the lock bar and arranged to enter into apertures in said doors and engage said doors to hold them closed when the lock bar is in its locking position.
9. The cabinet of Claim 8 wherein said lock device means further includes roller members arranged to be engaged by and moved by said cam means as any shelf is slid out, said movement causing movement of said lock bar to its locking position.
10. The cabinet of Claim 9 wherein said shelves carry abutment members arranged to engage said rollers when the lock bar is in its locking position to thereby prevent movement of the shelves towards their outer positions.
11. The cabinet of Claim 10 wherein key lock means are provided to hold said lock bar in its locking position to prevent any door from being opened.
12. The cabinet of Claim 1 wherein, said lock device means comprises a plurality of elements extending from the lock bars, hook means on said doors arranged to be engaged by said elements when the doors are in their closed position and said lock bar is moved from its unlocking position to its locking position.
13. The cabinet of claim 12 wherein said shelves each carry a combination lock bar operating member including a cam portion and an abutment portion, said abutment portion located to engage one of said elements when the lock bar is in its locking position and said cam portion engaging said one element when the lock bar is in its unlocking position, said cam portion acting to move said element and the lock bar to its locking position as the shelf carrying the lock bar operating member is moved outward.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US443871A US3888558A (en) | 1974-02-19 | 1974-02-19 | Lock and interlock mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1061849A true CA1061849A (en) | 1979-09-04 |
Family
ID=23762510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA219,818A Expired CA1061849A (en) | 1974-02-19 | 1975-02-11 | Lock and interlock mechanism |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3888558A (en) |
| CA (1) | CA1061849A (en) |
| ES (1) | ES434879A1 (en) |
| FR (1) | FR2261142B1 (en) |
Families Citing this family (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3936108A (en) * | 1975-02-24 | 1976-02-03 | Oxford Pendaflex Corporation | File cabinet drawer locking mechanism |
| US4217008A (en) * | 1976-03-29 | 1980-08-12 | Wright Line Inc. | Document storage system |
| US4272138A (en) * | 1979-04-02 | 1981-06-09 | Avm Corporation | Cabinet drawer anti-tip lock device |
| US4239309A (en) * | 1979-07-31 | 1980-12-16 | Lear Siegler, Inc. | Filing cabinet including drawer interlock |
| US4303287A (en) * | 1980-02-04 | 1981-12-01 | Vickers Limited | Locking mechanism for a storage cabinet |
| US4396239A (en) * | 1981-03-10 | 1983-08-02 | Paradyne Corporation | Interlock mechanism |
| US4441767A (en) * | 1982-04-21 | 1984-04-10 | Avm Corporation | Cabinet drawer anti-tip lock device |
| US4451111A (en) * | 1983-04-07 | 1984-05-29 | Munroe Warren T | Lightweight drawer support assembly having combination locking mechanism and common vertical drawer support |
| US4768844A (en) * | 1987-05-08 | 1988-09-06 | Hauserman, Inc. | Office cabinet |
| US4820002A (en) * | 1987-11-24 | 1989-04-11 | Tab Products Company | Safety interlock |
| DE9205640U1 (en) * | 1992-04-25 | 1992-07-02 | Häfele GmbH & Co., 7270 Nagold | Locking system for drawer cabinets |
| US5333949A (en) * | 1992-10-05 | 1994-08-02 | Krueger International, Inc. | File drawer interlock mechanism |
| US5358322A (en) * | 1992-12-16 | 1994-10-25 | Krueger International, Inc. | Drawer locking system |
| US5533798A (en) * | 1993-10-15 | 1996-07-09 | Steelcase Inc. | Lock system for casegoods |
| GB9403629D0 (en) * | 1994-02-25 | 1994-03-13 | Flexiform Business Furniture | Cabinet locking device |
| US6113200A (en) * | 1999-05-26 | 2000-09-05 | Snap-On Tools Company | Compartment with vertical drawers and structure for allowing only one vertical drawer to be outside compartment at a time |
| US6634726B1 (en) | 2001-05-30 | 2003-10-21 | Snap-On Technologies, Inc. | Multiple drawer cabinet allowing one drawer opened at a time |
| US6722749B1 (en) | 2001-08-14 | 2004-04-20 | Snap-On Technologies, Inc. | Drawer open position controller |
| FR2840171B1 (en) * | 2002-05-29 | 2004-08-27 | Piole Parolai Equipement | SERVANT TYPE FURNITURE PROVIDED WITH TEMPORARY DRAWER LOCKING MEANS |
| CN101469582B (en) * | 2007-12-29 | 2012-01-11 | 川湖科技股份有限公司 | Interlocking apparatus of drawer |
| WO2009140358A1 (en) * | 2008-05-13 | 2009-11-19 | Master Lock Company Llc | Storage enclosure |
| CA2708700C (en) * | 2010-06-29 | 2016-11-22 | Wesko Systems Limited | Releasable tenon for locking system |
| US10047546B2 (en) * | 2013-02-14 | 2018-08-14 | Keter Plastic Ltd. | Cabinet of storage units |
| US9435975B2 (en) * | 2013-03-15 | 2016-09-06 | Commscope Technologies Llc | Modular high density telecommunications frame and chassis system |
| CA2847639C (en) | 2014-02-06 | 2020-11-10 | Florian Westwinkel | Cammed lever-activated locking system |
| KR101905314B1 (en) | 2017-03-22 | 2018-10-05 | 김준상 | Safety Device for Drawer |
| US10485120B1 (en) * | 2018-10-03 | 2019-11-19 | Eaton Intelligent Power Limited | Enclosures including an interlocking device |
| KR102449373B1 (en) * | 2021-03-25 | 2022-09-30 | 주식회사 오피스안건사 | Safety storage furniture |
| US11549286B1 (en) * | 2021-12-07 | 2023-01-10 | Yi-Chun Chen | Lock bar-on-slide rail style drawer antitipping safety device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2842419A (en) * | 1955-02-23 | 1958-07-08 | Wright Line Inc | Filing cabinet drawer locking mechanism |
| US2886392A (en) * | 1956-04-20 | 1959-05-12 | Raymond L Stegmaier | Safe cabinet locking device |
| US3033634A (en) * | 1960-04-25 | 1962-05-08 | Tab Products Co | Gang lock |
| US3378321A (en) * | 1966-03-31 | 1968-04-16 | Supreme Steel Equipment Corp | Filing cabinets |
| US3622216A (en) * | 1970-05-28 | 1971-11-23 | Midwest Folding Products Mfg C | Drawer interlocking device for cabinets |
| US3776007A (en) * | 1972-09-07 | 1973-12-04 | Massey Ferguson Ind Ltd | Locking mechanism |
-
1974
- 1974-02-19 US US443871A patent/US3888558A/en not_active Expired - Lifetime
-
1975
- 1975-02-11 CA CA219,818A patent/CA1061849A/en not_active Expired
- 1975-02-17 FR FR7504781A patent/FR2261142B1/fr not_active Expired
- 1975-02-19 ES ES434879A patent/ES434879A1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2261142B1 (en) | 1982-10-01 |
| FR2261142A1 (en) | 1975-09-12 |
| US3888558A (en) | 1975-06-10 |
| ES434879A1 (en) | 1977-03-16 |
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