> Using Arduino. > Project Guidance. > Locking mechanism for secret drawer. Print. Go Down. Pages: [1]. Topic: Locking mechanism for secret drawer. (Read times) previous topic - next topic. funwes3. Guest. Locking mechanism for secret drawer. Jan 16, , pm. Hello Arduino Pros! I need help to analyze a projects feasibility. The project is a locking mechanism for a secret drawer and I want it to work something like this: 1. Place an RFID tag on top of the furniture over the reader on the underside. 2. Press an N.O. button/switch inside an existing drawer. How to lock the drawer dynamically? I have a modal use from react-native-modalbox. When I open up the modal, I call this www.- (); and locked the drawer. I only know that drawerLockMode can set in navigationOptions. But modal is Cabinet Drawer Locks Javascript not a screen in DrawerNavigator.  step 1: Create the reducer for drawer keep a flag in its state which we will be using to dynamically lock the drawer. step 2:subscribe to drawer's reducer and bind 'drawerLockMode' to that flag. step 3: just dispatch the action from anywhere to lock the drawer. here is the code. Your drawer component. www.- MIT License. stars.  www.- Upgrade devDependencies. Apr 8, View code. www.- Drawer. Flexible drawer menu using jQuery, iScroll and CSS. Demo & Installation. CDN.

Effective date : A cabinet has a plurality of drawers, each provided with a latch hook at its rear end which is receivable through a corresponding one of a plurality of mechwnism in a lock bar at the rear of the cabinet which vertically reciprocates between a lowered position interfering with the latch hooks to prevent opening of the drawers and a raised position accommodating free movement of the drawer lock mechanism javascript hooks through the apertures to permit opening of the drawers.

A lock at the front of drawer lock mechanism javascript cabinet rotates an elongated rod, the rear end of which engages a coupling bracket on the lock bar to lift it part way to its raised position, at the same time moving a sliding portion of the coupling bracket into position for engagement with a pivoting crank coupled to the rear end of a second drawer lock mechanism javascript and push button-actuated rod.

When the push button is depressed, the crank is pivoted to lift the lock bar the rest of the way to its raised position. Field of the Invention. The present invention relates to drawer locking and drawer lock mechanism javascript rdawer for cabinets and the like.

The invention has particular application to tool cabinets. Various types of locking and latching arrangements for multi-drawer cabinets have heretofore been used. Prior tool cabinets are commonly provided with a lock bar along the rear cabinet wall which engages the rear ends of the drawers, the lock bar being actuated between locked and unlocked conditions by a key lock at the front of the cabinet for simultaneously locking and unlocking all of the drawers.

Such tool cabinets are typically mounted on rollers so that they can be moved about on the floor lockk other support surface. During such movement the drawers may accidentally slide open when in their unlocked condition as a result of tipping of the cabinet, sudden stops or starts or inclination of the floor. It is known in other types of cabinets, such as filing cabinets and the like, to provide separate locking and latching mechanisms so that, after the drawers are unlocked, they drawer lock mechanism javascript be separately unlatched before they can drawer lock mechanism javascript opened.

Such cabinets commonly have individual latch mechanisms on each drawer for this purpose. This, of course, adds to the expense of manufacture of the drawer. It is also known to provide a common latch for simultaneously latching and unlatching a plurality of drawers and a separate lock which locks and unlocks the latch mechanism rather than the drawers.

Mechaniem, however, would require a major modification of a tool cabinet which uses the standard arrangement of a vertically reciprocating lock bar locked by a key lock in the front of the cabinet.

It is a general object of the invention to provide an improved cabinet and drawer locking and latching mechanism therefor, which avoids the disadvantages of prior mechanisms while affording additional structural and operating advantages. An important feature of the invention is the provision of a locking and latching mechanism which permits a plurality of drawers to be simultaneously locked and unlocked but prevents an unlocked drawer from opening until it has been unlatched.

In connection with the foregoing feature, it is another feature of the invention to provide a cabinet of the type set forth which utilizes a standard vertically reciprocating lock bar for simultaneously locking all of the drawers. Still another feature of the invention is the drawer lock mechanism javascript of a latch mechanism for simultaneously latching and unlatching all of the drawers after they have been unlocked.

In connection with the foregoing features, another feature of the invention is the provision of a cabinet of the type set forth which is of simple and economical construction.

These and other features of the invention are attained by providing in a cabinet having a drawer movable between open and closed conditions, the improvement comprising: a latch member carried by the cabinet and movable among first and second and third positions, the latch member in its first and second positions being engageable with the drawer in its closed condition for preventing opening thereof, the latch member in its third position accommodating free movement of the drawer between its open and closed conditions, first actuator means operable for moving the latch member between its first and second positions, and second actuator means for moving the latch member between its second and third positions.

The invention consists of certain novel features and a combination of parts hereinafter fully described, illustrated in the accompanying drawings, and particularly pointed out in the appended claims, it being understood that various changes in the details may be made drawer lock mechanism javascript departing from the spirit, or sacrificing any of the advantages, of the present invention. For the purpose of facilitating an understanding of the invention, there is illustrated in the accompanying drawings a preferred embodiment thereof, from an inspection of which, when considered in connection with the following description, the invention, its construction and operation, and drawer lock mechanism javascript of its advantages should be readily understood and appreciated.

Referring to FIG. Fixedly secured to the bottom wall 12 and depending therefrom are a plurality of rollers 16 for accommodating rolling movement of the cabinet 10 about an underlying support surface or floor in a known manner. The cabinet 10 is also provided with a marginal peripheral front wall 17 which defines a front opening accommodating a plurality of drawers 20, each having drawer lock mechanism javascript forwardly projecting handle 21 at mechanisk upper edge thereof.

Referring now also to FIGS. The latch hook 25 has an upwardly projecting, generally triangular finger drawer lock mechanism javascript which has a downwardly and rearwardly sloping cam surface 27 at the rear edge thereof and a vertical stop surface 28 at the front edge thereof, which is spaced a predetermined distance rearwardly of the rear wall 23 of the drawer It will be appreciated locl each of drawer lock mechanism javascript drawers 20 is adapted for sliding movement between open and closed conditions on associated drawer slides not shown in a known manner.

The cabinet 10 is also provided with an elongated, vertically extending lock bar 30 which is generally hat-shaped in transverse cross-section, including a rectangular main wall 31 having a plurality of vertically spaced-apart rectangular apertures 32 therein one shown. Javascri;t main wall 31 is integral along its opposite side edges with rearwardly extending side erawer 33, each of which is integral at its rear edge with a laterally outwardly extending flange The lock bar 30 is mounted for vertically reciprocating movement in a guide track 35, which is generally channel-shaped and is mounted on the inner surface of the drawer lock mechanism javascript wall 15 of the cabinet More specifically, the guide track 35 has laterally javascripy extending retaining flanges 36 which cooperate with the rear wall of the guide track 35 to define guide channels frawer FIG.

In use, the lock bar 30 is arranged so that the apertures 32 therein are respectively disposed for receiving the latch hooks 25 of the drawers 20, all in a known manner.

It is a significant aspect of the invention that the cabinet 10 also includes a lock assembly 40, which includes a key lock 41 mounted on the front wall 17 mechahism the cabinet 10 actuated by a key 42 for rotating a lever 43, commonly known as a "cam. Preferably, the rod 45 extends through drawer lock mechanism javascript apertures in front and rear hanger brackets 47 and 48, which may be respectively fixed to reinforcing channels 49 secured to the inner surface jagascript the cabinet top wall 14 to accommodate rotation of the rod 45 between its locked and unlocked conditions.

The lock assembly 40 includes a coupling bracket 50 which has a rectangular, horizontally drawsr base plate 51, which may be integral, centrally thereof, with the main wall 31 of the lock bar 30 at its upper end so that the base plate 51 projects forwardly from the lock bar Disposed immediately beneath the base plate 51 and parallel thereto is a rectangular slider plate 53 which has an elongated slot 54 therein for receiving therethrough a pin 55 for coupling the slider plate 53 to the base plate 51 for Drawer Lock Mechanism Model sliding movement of the slider plate 53 relative to the base plate Depending from the slider plate 53 are two spaced-apart rectangular tabs 56 and In use, the rear offset portion 46 of the rod 45 is disposed between the tabs 56 and Another important feature of the invention is that the cabinet 10 also includes a latch assembly 60 which is provided drawer lock mechanism javascript a push button actuator 61 projecting from the front wall 17 of the cabinet 10 and fixedly secured to the forward end of an elongated rod 62, which extends rearwardly of the cabinet 10 substantially parallel to the lock rod 45 and drawfr a rear end disposed for engagement with the forward leg 63 of a crank The crank 65 is generally L-shaped, having its apex disposed upwardly, with the leg 63 sloping downwardly and forwardly relative to the cabinet 10 and being integral at its upper end with a leg 66 javascripr slopes downwardly and rearwardly.

The crank 65 has an attachment flange 64 which receives therein a pivot pin 67 projecting laterally from a hanger 68, which depends from the cabinet top wall 14 for pivotally supporting the crank The latch assembly 60 also includes a helical tension bias spring 69 which has the rear end thereof secured to the attachment flange 64 and the front end thereof secured to jabascript rear hanger bracket 48 for resiliently urging the mecchanism 65 drawer lock mechanism javascript clockwise rotation about the pivot pin 67, as viewed in FIG.

It will be appreciated that the lock bar 30 is biased by gravity and by a spring not shown to a first, lowermost locking position, illustrated in FIGS. It will be appreciated that, when the lock bar 30 is disposed in this lowermost locking position, and a drawer 20 is open, the drawer 20 can be moved to its closed position without unlocking the oock assembly drawer lock mechanism javascript, the cam surface 27 camming the lock bar 30 momentarily upwardly to a raised unlatching position to permit free passage of the latch hook 25 through the lock bar aperture 32, whereupon the lock bar 30 will automatically drop back to its lowermost locked position.

When the drawers 20 are locked closed, the lock assembly 40 is so disposed that the rear offset portion 46 of the lock rod 45 mechanisn laterally to the side away from the latch assembly 60, as illustrated in FIG.

When the parts are in this condition, it can be seen that this offset portion 46 holds the slider plate drawer lock mechanism javascript in a retracted position so that all parts drawer lock mechanism javascript the coupling bracket 50 are clear of the javascripr 65, i.

Referring in particular drawer lock mechanism javascript FIGS. During this unlocking movement of the rod 45, the rear offset drawer lock mechanism javascript 46 also engages the tab 56 for sliding the slider plate 53 to an extended position overlapping the leg 66 of the crank Thus, it will be appreciated that while the lock assembly 40 has been unlocked, the drawers 20 are still prevented from sliding open.

Thus, inadvertent opening of the drawers, such as during movement of the cabinet 10, is effectively prevented. When it is desired to open one of the drawers 20, the push button drawer lock mechanism javascript 61 of the latch assembly 60 is depressed, as indicated by the arrow in FIG. This causes the crank leg 66 to lift the slider plate 53, and thereby the lock bar 30, the rest of the way to its raised unlatching position. In this raised unlatching position, the latch drawed 25 can freely move through the associated lock bar aperture 32, permitting the drawer 20 to be opened, as indicated in FIGS.

It will be appreciated that when the push button actuator 61 is released, the spring 69 will rotate the crank 65 in a clockwise direction back to its normal rest position, thereby pushing the rod 62 and the push button 61 back to their normal extended conditions and allowing the drawer lock mechanism javascript bracket 50 and the lock bar 30 to drop drawer lock mechanism javascript to their intermediate positions.

When the lock assembly 40 is relocked, the lock rod 45 will be rotated in a clockwise direction, the rear offset portion 46 thereof engaging the tab 57 to slide the slider plate 53 back to its retracted position and allowing the lock bar 30 to be lowered to its locked position.

From the foregoing, it can be seen that there has been provided an improved locking and latching mechanism for a drawer cabinet such that when the drawers are unlocked, a separate unlatching operation is required to permit a drawer to be opened, thereby effectively preventing inadvertent opening of a drawer during movement of the cabinet.

The locking and latching mechanisms both javasrcipt on a standard single lock bar common to all the drawers in the cabinet. I claim: 1. In a cabinet having a drawer movable between open and closed conditions, the improvement comprising: a latch member carried by the cabinet and movable among first and second and third positions, said latch member in its first and second positions being engageable with the drawer in its closed condition for preventing opening thereof, said latch member mechaism its third position accommodating free movement of the drawer between its open and closed conditions, first deawer means carried by the cabinet and operable for moving said latch member between its first and second positions, and second actuator means carried by the cabinet and operable for moving said latch member between its second and third positions.

The cabinet of claim 1, wherein said latch member is vertically movable among said first, second, and third positions. The cabinet of claim 2, wherein said latch member has an aperture therein, the drawer having a hook member thereon dimensioned to be receivable through said aperture when said latch member is in its third position. The cabinet of claim 1, wherein said first actuator means includes a lock.

The cabinet of claim 1, wherein said second actuator means includes a push button disposed on the outside of the cabinet and an elongated rod connected to said push button for reciprocating movement thereby. The cabinet of claim 1, wherein said first actuator means drawer lock mechanism javascript an enabling portion movable to an unlatch enabling position when said latch member is moved to its second position, said second actuator means including means engageable with said enabling portion in its unlatch enabling position for cooperation therewith to effect movement of said latch member to its third position in response to actuation of said second actuator means.

The cabinet of claim 1, and further including bias means resiliently biasing said second drawer lock mechanism javascript means to a normal unactuated condition. The cabinet of claim 8, and further comprising means mounting said first actuator member for mechnaism movement between the locking and unlocking conditions thereof. The cabinet of claim drawer lock mechanism javascript, and further comprising means mounting said second actuator member for reciprocating movement between the latching mechaism unlatching conditions thereof.

The cabinet of claim 8, and further comprising means mounting said second coupling mechanism for pivotal movement thereof. The cabinet of claim 8, wherein said first coupling mechanism includes a first portion fixed to said latch member, and a second portion movable relative to said latch member to said unlatch enabling condition.

The cabinet of claim 8, and further comprising bias means resiliently urging said second coupling mechanism to a normal rest position for accommodating movement of said first coupling mechanism to its unlatch enabling condition.

In a cabinet having a plurality of drawers movable between open and closed conditions, the improvement comprising: a latch member carried by the cabinet and movable among first and second drawer lock mechanism javascript third positions, said latch member in its first and second positions being engageable with all of the drawers in their closed conditions for preventing opening thereof, said latch member in its third position accommodating free movement of all of the mdchanism between their open and closed conditions, first actuator means carried by the cabinet and operable mechaism moving said latch member between its first and second positions, drawer lock mechanism javascript second actuator means carried by the cabinet and operable for moving said latch member between its second and third positions.

The cabinet of claim 14, drawer lock mechanism javascript said latch member is vertically movable among the several positions thereof. The cabinet of claim 15, wherein said latch member is an elongated bar disposed at the drawer lock mechanism javascript of the cabinet.

The cabinet of claim 16, wherein said bar has a plurality of vertically spaced apertures therethrough, each of the javascrript having a latch hook at the rear end thereof adapted to be received Drawer Slide Locking Mechanism Model through a corresponding one of said apertures when said bar is disposed in its first position. The cabinet of claim 14, and further comprising bias means resiliently urging said second actuator means to a normal unactuated condition.

The cabinet of claim 15, wherein said first actuator means includes a lock, and drawer lock mechanism javascript second actuator means includes a push button on the front of the cabinet and an elongated rod connected to said push button for reciprocating movement thereby. USA en. USB2 en. USDS1 en. USB1 en. AUB2 en. EPB1 en. CAC en. KRB1 en.

The lock mechanism would, therefore, include two rods and members extending towards the sides. The drawer will be locked at both ends for increased stability. If only a single lock/interlock is used, the drawers could be pulled out to some extent at the unlocked www.- by: Apr 22,  · What I need to do is find a way to lock and unlock a chest of drawers using SmartThings. My original idea was to use a solenoid latch (something like this) on each drawer and just plug them all into a smart plug. Turn power on to the plug, the drawers unlock. Turn power off and the latches release, locking the drawers again. You know how much shop person by trade and college to I used to teach industrial arts and you know I don't know the name of that part either I don't recall ever hearing the name of that part I've got one of those tool boxes to cost me $ I bough.

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