The present invention relates in general to the locking systems for enclosures. More particularly, the present invention relates to a magnetic lock system for enclosures including, but not limited to lavatory accessories.
Many enclosures, whether lavatory accessories such as paper towel dispensers, toilet paper dispensers, etc. or other types of enclosures, are disposed in many public high-traffic areas. It is known in the art to include a lock system to secure the enclosure to prevent unauthorized third parties from opening the enclosure and removing items from within the enclosure. However, a traditional lock and key system requires multiple keys for multiple enclosures. Having to carry and sort through numerous keys when accessing and/or refilling enclosures can become burdensome on maintenance personnel.
In addition, the key opening of the lock on the front or side of the enclosure can detract from the aesthetic of the enclosure itself. Further yet, the key opening of the lock may be subject to vandalism from third parties by placing things within or defacing the key opening. Such vandalism can prevent maintenance personnel from inserting the key within the key opening of the lock and unlocking the enclosure. As a result, maintenance personnel would not be able to access the interior of the enclosure.
Thus, it would be desirable to provide a magnetic lock system for enclosures that allows maintenance personnel to access a great number of enclosures with a single magnetic key to prevent the necessity of multiple keys. Further, it would be desirable to provide a magnetic lock system for enclosures that is disposed within the enclosure such that it does not require key openings on the exterior of the enclosure.
The present invention is directed to a magnetic lock system used with enclosures, such as but not limited to lavatory accessories.
In accordance with an embodiment of the invention, a magnetic lock system for an enclosure includes a receiver disposed within the enclosure and a locking mechanism coupled to an interior surface of the enclosure. The locking mechanism includes a mounting plate coupled to the interior surface of the enclosure, a latch rotatable around a pivot axis and configured to engage the receiver in a locked orientation, a tension device coupled to the latch and configured to exert a force on the latch to maintain it in the locked orientation, and a magnet coupled to the latch. The magnet is configured to interact with a magnetic key to overcome the force of the tension device and transition the latch to an unlocked orientation. The mounting plate and the latch are pivotably connected to each other via a pin associated with the pivot axis.
According to an aspect of the invention, the latch includes a main portion, a latching portion extending from a first end of the main portion, and a magnet portion extending from a second end of the main portion. The latching portion is configured to engage with the receiver in the locked orientation, while the magnet portion has the magnet coupled thereto.
According to another aspect of the invention, the latch may include a number of sidewalls extending downward from opposite ends of the main portion. Each sidewall includes an opening formed therein and configured to receive the pin aligned with the pivot axis. Further, the tension device is disposed around the pin.
According to yet another aspect of the invention, the latch may include a number of sidewalls extending downward from opposite ends of the magnet portion. Each sidewall includes an opening formed therein and configured to receive a pin aligned with the pivot axis. Further, the tension device is disposed around the pin.
According to another aspect of the invention, the mounting plate includes a base plate and a number of extensions extending upward from the base plate. Each extension includes an opening formed therein and configured to receive the pin aligned with the pivot axis. Additionally, the mounting plate may include a stopper element in the form of a tab that is configured to limit the pivot of the latch.
According to yet another aspect of the invention, the enclosure includes a locking plate that extends from the housing in any direction toward the locking mechanism, where the distal end of the locking tab is configured to interact with the locking mechanism. Further, the enclosure includes a housing having a number of sidewalls of any shape attached to a top wall, a bottom wall, and a back plate. The housing may further include a lock indicator that indicates where a magnetic key must be placed to transition the magnetic lock of the enclosure from the locked orientation to the unlocked orientation. In addition, the housing may further includes an indicator slot that is visually open to the inner volume of the enclosure such that a user may inspect the enclosure to determine if additional dispensing product is required.
According to another aspect of the invention, the mounting plate coupled to the interior surface of the enclosure may be configured to support a bracket mount extending from each side of a bracket, in addition to a pin secured by the bracket configured to comprise the pivot axis that the latch rotates about and a fastener that attaches each bracket mount to the mounting plate.
According to yet another aspect of the invention, the bracket mount and mounting plate may each include a textured surface that are configured to interlock with one another vertically, such that their vertical alignment may be adjusted by moving the bracket and bracket mounts so that their textured surfaces fit together differently. The textured surfaces of the bracket mount and the mounting plate may be locked together with the fastener, and additional fasteners can be used to tighten or loosen the horizontal alignment of the latch of the locking mechanism when in the locked orientation.
In addition, an aspect of the invention is a method by which the enclosure and its associated magnetic lock system may be used. The method comprises placing a counter force element such as a magnet on a lock indicator, generating an interaction between the counter force element and a magnet within a locking mechanism. That interaction between the counterforce and the magnet of the locking mechanism overcomes the force of a tension element of the locking mechanism causing a latch of the locking mechanism to rotate about a pin such that the latch is no longer disposed within an opening of a locking tab. That in turn leads to the lock system to transition from the locked orientation to the unlocked orientation.
These and other aspects and objects of the present invention will be better appreciated and understood when considered in conjunction with the following description and the accompanying drawings. It should be understood, however, that the following description, while indicating preferred embodiments of the present invention, is given by way of illustration and not of limitation. Many changes and modifications may be made within the scope of the present invention without departing from the spirit thereof, and the invention includes all such modifications.
A clear conception of the advantages and features constituting the present invention, and of the construction and operation of typical mechanisms provided with the present invention, will become more readily apparent by referring to the exemplary, and therefore non-limiting, embodiments illustrated in the drawings accompanying and forming a part of this specification, wherein like reference numerals designate the same elements in the several views, and in which:
In describing the preferred embodiment of the invention, which is illustrated in the drawings, specific terminology will be resorted to for the sake of clarity. However, it is not intended that the invention be limited to the specific terms so selected and it is to be understood that each specific term includes all technical equivalents which operate in a similar manner to accomplish a similar purpose. For example, the word connected, attached, or terms similar thereto are often used. They are not limited to direct connection but include connection through other elements where such connection is recognized as being equivalent by those skilled in the art.
The present invention and the various features and advantageous details thereof are explained more fully with reference to the non-limiting embodiments described in detail in the following description.
Throughout this description, various terms denoting direction, such as left and right, front and rear, up and down, top and bottom, and the like may be used. The directions are not intended to be limiting but are used to describe relationships of elements with respect to each other in the accompanying drawings. Unless mutually exclusive, it is contemplated that the elements may be reversed, for example, by turning a component around or upside down without deviating from the scope of the present invention.
Turning initially to
The bottom wall 18 may include an opening 24 formed therethrough in order to expose the inner volume 22 of the enclosure 10 to a user. In turn, a user is able to remove product, such as stacked paper towels, from the inner volume 22 of the enclosure 10 via the opening 24. Additionally, a surface of the housing 12, such as a front surface 26 of the sidewalls 14 may include a lock indicator 28 disposed adjacent the upper edge of the sidewalls 14 to indicate the location where a key may be placed to unlock the enclosure 10. This will be described in further detail below. In varying embodiments of the invention, the lock indicator 28 may be located at any location on the housing 12.
The housing 12 may also include an indicator slot 30 formed in the front surface 26 of the sidewalls 14. Preferably, the indicator slot 30 is located adjacent the bottom plate 18 of the housing. It is anticipated that the indicator slot 30 may be either completely open to the inner volume 22 of the enclosure 10 or include a clear barrier that is visually open to the inner volume 22 of the enclosure 10. In turn, a maintenance person may inspect the enclosure 10 through the indicator slot 30 to determine if product needs to be added to the enclosure 10. In other embodiments of the invention, the indicator slot 30 may be located at any location on the housing 12.
The representative embodiment of the invention further depicts a locking plate 29 disposed in an upper region of the housing 12 and displaced from the top wall 16 of the housing 12 when in the closed orientation 34. The locking plate 29 may be in the form of a cantilevered plate extending outward from an upper portion 37 of the support frame 36 and toward the front surface 26 of the housing 12. In other embodiments of the invention, the locking plate 29 may extend in any direction toward a locking mechanism 33 associated with the lock indicator 28. Further, the locking plate 29 may include a locking tab 31 extending from a distal end thereof.
Referring now to
The locking tab 31 of the locking plate 29 includes an opening 96 formed therein and configured to receive a latch 98 of the locking mechanism 33 when the locking mechanism 33 is in a locked orientation 94. The latch 98 is rotatable about a pivot axis created by a pin 100. In the representative embodiment of the invention, the pin 100 is secured to a bracket 102 attached to or commonly formed with a bracket mount 104 extending from each side of the bracket 102 in order to mount the bracket 102 and associated components to a mounting plate 106 of the locking mechanism 33. In turn, the mounting plate 106 may be coupled to are formed unitary with an inner surface 27 of the housing 12.
The locking mechanism 33 includes a tension element 112, such as, but not limited to, a coiled spring aligned with the pivot axis, that maintains the latch 98 and lock 92 in the locked orientation 94 of
The locking mechanism 33 may also include a counter force element 114, such as, but not limited to, a magnet, configured to exert a force on the latch 98 in response to placement of a key element, such as, but not limited to, a magnet key. In the representative embodiment of the invention, the magnet 114 is coupled to the latch 96 at a surface adjacent the mounting plate 106 and the inner surface 27 of the housing 12. The lock indicator 28 shown in
In turn, a maintenance person may place a magnet key to the lock indicator 28 in order to interact with the magnet 114 of the locking mechanism 33 and transition the lock 92 from the locked orientation 94 of
In the representative embodiment of the invention, each bracket mount 104 may include a textured surface 108 formed thereon and configured to interfit with a textured surface 110 of the mounting plate 106. The textured surfaces 108, 110 are configured to variably interfit with each other along a vertical plane. As such, the vertical alignment of the latch 98 of the locking mechanism 33 in the locked position 94 with respect to the opening 96 of the locking tab 31 may be adjusted by moving the bracket 102 and bracket mounts 104 to have the textured surface 108 fit together with different regions of the textured surface 110. The textured surfaces 108, 110 may be sized large enough to interfit with each other or small enough to establish a friction fit between the bracket 102 and the mount 104. A fastener 118 may then be used to attach each bracket mount 104 to the mounting plate 106 and lock together the textured surfaces 108, 110.
As shown in
Referring again to the bracket 102 of the locking mechanism 33,
Referring next to
The locking mechanism 233 includes a latch 298 similar to latch 98 of locking mechanism 33, which is configured to interfit with a receiver, such as the opening 96 of the locking tab 31 of the locking plate 29 shown in
The latch 298 is rotatable about a pivot axis created by a pin 200. As shown, the pin 200 couples the latch 298 to a mounting plate 206 of the locking mechanism 233. The mounting plate 206 may be coupled to are formed unitary with an inner surface 27 of the housing 12. In some embodiments of the invention, the interior surface 27 may be the associated with the any of the sidewalls and/or door of the enclosure 10.
In the representative embodiment of the invention, the mounting plate 206 includes a base plate 204 and a number of extensions 202 extending upward from the base plate 204. Preferably, the extensions 202 extend perpendicular to the base plate 204. Each extension 202 may include an opening formed therein and configured to receive the above discussed pin 200, which acts as the pivot axis.
In the representative embodiment of the invention, the latch 298 includes a plurality of surfaces including a main portion 280, a latching portion 282, a magnet portion 284, and a number of sidewalls 286. As shown in
The one or more sidewalls 286 may extend from opposite sides of the main portion 280 in a direction downward and preferably perpendicular to the main portion 280 of the latch 298. Similar to the extensions 202, each sidewall 286 may include an opening formed therein and configured to receive the above discussed pin 200, which acts as the pivot axis. That is, the openings of the extension 202 and the sidewalls 286 may be aligned so that the pin 200 extends therethrough and pivotably couples the latch 298 to the mounting plate 206.
The locking mechanism 233 includes a tension element 212, such as, but not limited to, a coiled spring aligned with the pivot axis and oriented around the pin 200. The ends of the tension element 212 are further coupled to the latch 298 and the mounting plate 206, respectively. The tension element 212 is configured to maintain the latch 298 and the lock 201 in the locked orientation 215 of
The locking mechanism 233 may also include a counter force element 214, such as, but not limited to, a magnet, configured to exert a force on the latch 298 in response to placement of a key element, such as, but not limited to, a magnet key. As shown in
In turn, a maintenance person may place a magnet key to the lock indicator 28 in order to interact with the magnet 214 of the locking mechanism 233 and transition the lock 201 from the locked orientation 215 of
Next,
Similar to locking mechanism 233, locking mechanism 333 includes a latch 398 that is configured to interfit with a receiver when in the locked orientation, such as the opening 96 of the locking tab 31 of the locking plate shown in
The latch 398 is rotatable about a pivot axis created by a pin 300. As shown, the pin 300 couples the latch 398 to a mounting plate 306 of the locking mechanism 333. The mounting plate 306 may be coupled to are formed unitary with an inner surface 27 of the housing 12. In some embodiments of the invention, the interior surface 27 may be the associated with the any of the sidewalls and/or door of the enclosure 10.
In the representative embodiment of the invention, the mounting plate 306 includes a base plate 304 and a number of extensions 302 extending upward from the base plate 304. Preferably, the extensions 302 extend perpendicular to the base plate 304. Each extension 302 may include an opening formed therein and configured to receive the above discussed pin 300, which acts as the pivot axis. While
Meanwhile, the representative embodiment of the latch 398 includes a plurality of surfaces including a main portion 380, a latching portion 382, a magnet portion 384, and a number of sidewalls 386. As shown in
Similar to the extensions 302, each sidewall 386 may include an opening formed therein and configured to receive the above discussed pin 300, which acts as the pivot axis. That is, the openings of the extension 302 and the sidewalls 386 may be aligned so that the pin 300 extends therethrough and pivotably couples the latch 398 to the mounting plate 306. While
The locking mechanism 333 includes a tension element 312, such as, but not limited to, a coiled spring aligned with the pivot axis and oriented around the pin 300. The ends of the tension element 312 are further coupled to the latch 398 and the mounting plate 306, respectively. The tension element 312 is configured to maintain the latch 398 and the lock 301 in the locked orientation 315 of
The locking mechanism 333 may also include a counter force element 314, such as, but not limited to, a magnet, configured to exert a force on the latch 398 in response to placement of a key element, such as, but not limited to, a magnet key. As shown in
In turn, a maintenance person may place a magnet key to the lock indicator 28 in order to interact with the magnet 314 of the locking mechanism 333 and transition the lock 301 from the locked orientation 315 of
Next,
Similar to locking mechanism 333, locking mechanism 433 includes a latch 498 that is configured to interfit with a receiver when in the locked orientation 415, such as the opening 96 of the locking tab 31 of the locking plate 29 shown in
The latch 498 is rotatable about a pivot axis created by a pin 400. As shown, the pin 400 couples the latch 498 to a mounting plate 406 of the locking mechanism 433. The mounting plate 406 may be coupled to are formed unitary with an inner surface 27 of the housing 12. In some embodiments of the invention, the interior surface 27 may be the associated with the any of the sidewalls and/or door of the enclosure 10.
In the representative embodiment of the invention, the mounting plate 406 includes a base plate 404 and a number of extensions 402 extending upward from the base plate 404. Preferably, the extensions 402 extend perpendicular to the base plate 404. Each extension 402 may include an opening 403 formed therein and configured to receive the above discussed pin 400, which acts as the pivot axis. While
In addition, the mounting plate 406 includes a stopper element 494 in the form of a tab that extends upward from the base plate 404. Preferably, the tab 494 extends perpendicularly upward from the base plate 404. The tab 494 includes a first upward segment 494a and a second lateral segment 494b. The first upward segment 494a extends upward from the base plate 404 at or adjacent a rear edge of the base plate 404, from a first lower end to a second upper end. In turn, the second lateral segment 494b extends laterally inward from the second upper end of the first upward segment 494a. As shown in
The representative embodiment of the latch 498 includes a plurality of surfaces including a main portion 480, a latching portion 482, a magnet portion 484, and a number of sidewalls 486. As shown in
Similar to the extensions 402, each sidewall 486 may include an opening 487 formed therein and configured to receive the above discussed pin 400, which acts as the pivot axis. That is, the openings of the extension 402 and the sidewalls 486 may be aligned so that the pin 400 extends therethrough and pivotably couples the latch 498 to the mounting plate 406. While
The locking mechanism 433 includes a tension element 412, such as, but not limited to, a coiled spring aligned with the pivot axis and oriented around the pin 400. The ends of the tension element 412 are further coupled to the latch 498 and the mounting plate 406, respectively. The tension element 412 is configured to maintain the latch 498 and the lock 401 in the locked orientation 415 of
The locking mechanism 433 may also include a counter force element 414, such as, but not limited to, a magnet, configured to exert a force on the latch 498 in response to placement of a key element, such as, but not limited to, a magnet key. As shown in
In turn, a maintenance person may place a magnet key to the lock indicator 28 in order to interact with the magnet 414 of the locking mechanism 433 and transition the lock 401 from the locked orientation 415 of
Referring again to tab 494, tab 494 limits the pivoting of the latch about the pivot axis to the neutral position associated with the lock orientation 415 of the magnetic lock 401 and its locking mechanism 433. As shown in
In addition to the structural embodiments of this invention, this invention describes the method by which the various embodiments of the enclosure 10 and its associated magnetic lock 92, 201, 301 system may be utilized. The method comprises placing a key element, such as a magnet key, on a lock indicator 28, generating an interaction between the key element and the counter force element 114, 214, or 314, such as a magnet, within the magnetic lock 92, 201, 301 which overcomes the force of a tension element 112, 212, 312 of the locking mechanism. This causes the latch 98, 298, 398 of the magnetic lock 92, 201, 301 to rotate about a pin 100, 200, 300 such that the latch 98, 298, 398 is no longer disposed within an opening 96 of a locking tab 31; which leads to the magnetic lock 92, 201, 301 to transition from a locked orientation 94, 215, 315 to an unlocked orientation 116, 216, 316.
As mentioned above, contemplated preferred embodiments of the magnet 114, 214, 314 and contemplated preferred embodiments of the torsion spring 112, 212, 312 will now be described. In preferred embodiments of the invention, the magnet 114, 214, 314 may be a neodymium magnet. More preferably, the magnet 114, 214, 314 may be an N temperature type neodymium magnet. Even more preferably, the magnet 114, 214, 314 may have a maximum energy product of 35-50 MGOe. Further preferably, the magnet 114, 214, 314 may be an N42 type neodymium magnet (an N temperature type and a maximum energy product of 42 MGOe).
Additionally, the magnet 114, 214, 314 may be sized with a preferred width-to-height ratio. Preferably, the width-to-height ratio is less than 5 to increase the maximum working temperature of the magnet 114, 214, 314 without losing its magnetization. More preferably, the width-to-height ratio is less than 4. Even more preferably, the width-to-height ratio is 3.33. Further, a preferable width of the magnet 114, 214, 314 may be 10 mm and a preferable height of the magnet 114, 214, 314 may be 3 mm, which results in a width-to-height ration of 3.33.
Preferably, the torsion spring 112, 212, 312 has a mandrel size of 1-10 mm. More preferably, the mandrel size of the torsion spring 112, 212, 312 is 3.5-7.5 mm. Even more preferably, the mandrel size of the torsion spring 112, 212, 312 is 5.5 mm. In addition, each leg of the torsion spring 112, 212, 312 may be a straight leg orientation and have a length of 10-30 mm. More preferably, each leg of the torsion spring 112, 212, 312 may have a leg length of 15-25 mm. Even more preferably, the leg length of the torsion spring 112, 212, 312 is 19 mm. Preferably, the torsion spring 112, 212, 312 may include 15-25 coils. More preferably, the torsion spring 112, 212, 312 includes 22 coils.
Although the best mode contemplated by the inventors of carrying out the present invention is disclosed above, practice of the present invention is not limited thereto. It will be manifest that the various additions, modifications, and rearrangements of the features of the present invention may be made without deviating from the spirit and scope of the underlying inventive concept.
Moreover, the individual components need not be formed in the disclosed shapes, or assembled in the disclosed configuration, but could be provided in virtually any shape, and assembled in virtually any configuration. Furthermore, all the disclosed features of each disclosed embodiment can be combined with, or substituted for, the disclosed features of every other disclosed embodiment except where such features are mutually exclusive.
It is intended that the appended claims cover all such additions, modifications and rearrangements. Expedient embodiments of the present invention are differentiated by the appended claims.
The present application claims priority to U.S. Provisional Patent Application No. 63/287,309, filed on Dec. 8, 2021, and U.S. Provisional Patent Application No. 63/426,927, filed on Nov. 21, 2022. The entire contents of which are incorporated by reference herein.
Filing Document | Filing Date | Country | Kind |
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PCT/US2022/052286 | 12/8/2022 | WO |
Number | Date | Country | |
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63287309 | Dec 2021 | US | |
63426927 | Nov 2022 | US |