This invention relates to the field of security locks. More particularly, it relates to an electronic deadbolt controlled by a touch screen.
Electronic deadbolts are well-known. Many electronic deadbolts include a keypad that allows users to enter a passcode to unlock the lock. In some cases, the keypads have physical buttons that the users press to enter passcodes while others include touch buttons or touch screens that operate on capacitive touch. With a touch screen lock controller, the keypad is able to sense touches of the user's finger on the keypad surface without the mechanical parts of a physical button. The user may engage the deadbolt and disengage the deadbolt through tactile input into the lock controller via the touch screen.
These touch screens are often installed on the exterior portion of an entry door. In the event of a power outage, touch screen lock controllers are known to include a mechanical key bypass accessible on the exterior portion of the entry door. The mechanical key bypass allows the user to use a physical key to engage and disengage the same deadbolt controlled by the touch screen. This allows a fail-safe measure to gain entry in the event of a power outage or malfunction of the electronic lock.
Mechanical key bypasses also add to the overall size of the deadbolt requiring a larger use of space on the exterior surface of the door. The increased use of the door surface limits aesthetic designs such as glass accents, millwork, or carvings that may be included on the door surface. Mechanical key bypasses also add to the overall complexity and cost associated with the deadbolt.
Known electronic deadbolts that use touch screens use a touch overlay that is surrounded by and protected by a bezel. The bezel acts as a barrier to protect the overlay from impact and also shields the perimeter from moisture, as it is installed on the exterior of a door. These bezels also add to the overall size of the touch screen, which as mentioned above is undesirable.
What is therefore needed is an electronic deadbolt that uses a reduced amount of the door surface. What is also needed is an electronic deadbolt that incorporates a touch screen without a mechanical key bypass. Finally, what is needed is an improved, exterior, compact touch screen for operating an electronic deadbolt.
An electronic deadbolt controller preferably includes a planar, exterior touch panel. The touch panel is preferably used in all-weather conditions. The touch panel is also preferably in the shape of a square with flat sides. A touch overlay may form a face of the touch panel and receive tactile input from a user. The tactile input may be received by a flexible printed circuit board secured to the touch overlay.
To assist in displaying a numeric key pad, a diffuser may be secured to the flexible printed circuit board opposite the touch overlay. A spacer may further be secured to the diffuser opposite the flexible printed circuit board. A rigid printed circuit board may include light emitting diodes and be secured to the spacer opposite the diffuser. Preferably, a PCB housing contains the components of the touch pad within sides formed by a PCB housing cavity. The touch overlay preferably rests above the PCB housing cavity and is secured with an adhesive sealing the components within.
A second housing may be used to accept the PCB housing within a housing cavity formed by four sides of the second housing cavity thus allowing the PCB housing to nest within. An opening in the rear surface of the touch panel may be sealed, preferably with an epoxy, therefore preventing any moisture from entering the touch panel.
An interior escutcheon may be attached to the touch panel with fasteners and a cable allowing communication, or be in remote communication. A battery storage compartment is preferably included within the interior escutcheon to deliver power the electronic deadbolt controller. A set of battery terminals may also extend from the exterior of the second housing in electrical communication with the lock controller configured to accept an external battery to power the electronic deadbolt controller when the battery storage compartment fails to power the electronic deadbolt controller.
The second housing may be secured to the PCB housing with a tenon in the second housing cavity configured to mate with a mortise in the PCB housing.
The touch overlay may also include an electroluminescent material configured to both illuminate the touch panel and also detect the tactile input.
Preferably, the electronic deadbolt controller does not include a mechanical key bypass on an exterior side of the door and instead uses a battery backup with the battery terminals.
A plurality of tactile input traces may also be used by programing them into the electronic deadbolt controller or they may be physically embedded into the touch overlay thus allowing for a thinner touch panel. In such an example, the touch overlay would preferably be glass but any known touch overlay material may be used.
The touch overlay also preferably includes equal length sides that each extend beyond a perimeter of the PCB housing. The PCB housing may be formed with at least three equal length sides that are each shorter than the equal length sides of the touch overlay. The second housing also preferably includes sides that are each equal in length to the touch overlay sides. The equal length sides of the touch overlay thus align with and are flush to the equal length sides of the second housing when the touch panel is assembled.
The touch panel may be assembled with a conformal resin to secure the flexible printed circuit board, the diffuser, the spacer, and the rigid circuit board within the housing cavity, or double sided tape and adhesives may be used.
Additional features and advantages of the invention will become apparent to those skilled in the art upon consideration of the following detailed description of the illustrated embodiment exemplifying the best mode of carrying out the invention as presently perceived. It is intended that all such additional features and advantages be included within this description and be within the scope of the invention.
The present disclosure will be described hereafter with reference to the attached drawings which are given as non-limiting examples only, in which:
The figures and descriptions provided herein may have been simplified to illustrate aspects that are relevant for a clear understanding of the herein described devices, systems, and methods, while eliminating, for the purpose of clarity, other aspects that may be found in typical devices, systems, and methods. Those of ordinary skill may recognize that other elements and/or operations may be desirable and/or necessary to implement the devices, systems, and methods described herein. Because such elements and operations are well-known in the art, and because they do not facilitate a better understanding of the present disclosure, a discussion of such elements and operations may not be provided herein. However, the present disclosure is deemed to inherently include all such elements, variations, and modifications to the described aspects that would be known to those of ordinary skill in the art.
References in the specification to “one embodiment,” “an embodiment,” “an illustrative embodiment,” etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may or may not necessarily include that particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to affect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described. Additionally, it should be appreciated that items included in a list in the form of “at least one A, B, and C” can mean (A); (B); (C); (A and B); (A and C); (B and C); or (A, B, and C). Similarly, items listed in the form of “at least one of A, B, or C” can mean (A); (B); (C); (A and B); (A and C); (B and C); or (A, B, and C).
In the drawings, some structural or method features may be shown in specific arrangements and/or orderings. However, it should be appreciated that such specific arrangements and/or orderings may not be required. Rather, in some embodiments, such features may be arranged in a different manner and/or order than shown in the illustrative figures. Additionally, the inclusion of a structural or method feature in a particular figure is not meant to imply that such feature is required in all embodiments and, in some embodiments, may not be included or may be combined with other features.
Referring to
The touch panel 24 preferably receives input in the form of tactile touch from a user. A touch overlay 28 is provided on the front portion of the touch panel 24 and may illuminate to display a number pad. The user may enter an access code by manually entering a numeric code onto the touch overlay 28. A logo 92 may also selectively illuminate to either identify the origin of the invention or to communicate various messages to the user. For example, the logo 92 may illuminate in white to indicate an operational status, red for a malfunction, flash to indicate an incorrect/correct attempt to enter an access code, or any other color/flashing combination. The touch overlay 28 need not be limited to illuminating a numeric pad, but may include alpha numeric characters and symbols. The touch overlay 28 may also illuminate to display messages or video to allow for communication with a remote person or computer system. In this instance, a camera may be incorporated either directly on the touch panel 24 or integrated via a wire or wireless control.
In any instance, the preferred embodiment of the touch panel 24 includes a flat, planar touch overlay 28 that has equal length sides 26 forming a uniform, square shape. The touch panel 24 sides 26 are formed by the touch overlay 28 and the exterior 86 of the housing 44. The touch overlay 24 has sides 70 that are uniform in length, line up to, and are flush with the sides 46 of the housing 44. This produces a sleek and uniform shape with a flat front and sides.
Referring now to both
In order to prevent unauthorized access to the escutcheon 54 from the exterior side 100 of the door 94, a hardened steel plate 62 may be inserted between the door 94 and the escutcheon. The steel plate 62 provides anti-drilling features in the event the touch panel 24 is dislodged from the door 94. An added security measure includes forming the housing 44 out of a durable alloy and using fasteners extending through the door 94 to join the housing 44 to the escutcheon 94.
Turning now to
As there is no bezel surrounding the touch overlay 28, the touch panel 24 preferably does not use any visible gasket between the housing 44 and the touch overlay. Instead, as shown in
Preferably, the various layers of the touch panel 24 are contained within a PCB housing 38. The PCB housing 38 includes sides 40 that form a PCB housing cavity 42.The PCB housing cavity 42 is shaped such that the rigid printed circuit board 36, the spacer 34, the diffuser 32, and the flexible printed circuit board 30 are all contained within the PCB housing cavity 42. Each one of these components sits completely within the PCB housing cavity 42 such that they are not visible from a side view. This allows the touch overlay 28 to rest on the PCB housing sides 40 around the entire perimeter of the PCB housing 38. The adhesive 88 therefore seals the components within the PCB housing cavity 42. Once contained within the PCB housing cavity 42 the PCB housing 38 may be inserted within the housing 44 within the housing cavity 48.
To assist in securing the PCB housing 38 within the housing 44, a tenon 76 extends from the housing cavity 48. The tenon 76 on the housing 44 is inserted into a mortise 44 on the PCB housing 38. The tenon 76 of the housing 44 projects from a side 46 of the housing 44 and into the housing cavity 48. The mortise 104 likewise projects into the PCB housing cavity 42 from a single side 40 of the PCB housing 38. As a result, the exterior 86 of the housing 44 is flat and uniform on every side 46. The PCB housing 38 is flat and uniform on all sides 40 except for the side 40 with the mortise 104. Nevertheless, the length of each one of the sides 40 of the PCB housing are equal length allowing it to fit within the interior of the housing 44 within the housing cavity 48. Once inserted into the housing cavity 48, the perimeter 72 of the PCB housing 38 is contained flush with a front face 90 of the housing 44.
Turning now to
Looking to
As shown in
When assembling the touch panel 24, the touch overlay 28 may be secured at the same time onto both the PCB housing 38 and the housing 44 after they are nested together as shown in
Referring back to
The escutcheon 54 may not only contain a battery storage compartment 56, but may also be configured to contain any number of accessories, such as a wireless protocol controller 84. Any one of the components of the touch panel 24 may also be removed from the housing 44 and moved within the escutcheon 54 allowing for an even smaller touch panel 24. The touch panel 24 may also include a touch overlay 28 constructed with an electroluminescent material 64 contained within the touch overlay 28 or on one side of the touch overlay 28. Such a construction would allow for a smaller housing 44 as the light emitting diodes contained on the rigid circuit board 36 would not be needed or may be smaller. Another alternative design may incorporate tactile input traces 68 which may be programmed into the electronic deadbolt controller 20 which would allow a user to trace shapes or patterns onto the touch overlay 28 as a form of access code.
When operating the touch panel 24, the user preferably may engage the deadbolt 78 simply by touching anywhere on the overlay 28 of the touch panel 24. A single touch may “awaken” the touch panel from a dormant sleep mode. While in a dormant sleep mode the touch panel 24 preferably does not illuminate and a number pad may not be visible. Once awoken with a single touch on the touch overlay 28, the number pad may then be visible. When the door 94 is in a closed position, waking the touch pad 28 may also automatically engage the deadbolt 78. This allows the user to lock the door 94 simply and easily when exiting the dwelling. Alternatively, the user may touch the touch overlay 28 to awaken the touch panel 24 and then press a lock button that illuminates.
It is also envisioned that the touch panel 24 may include a physical button. The button may either sense tactile touch through capacitive sensing or through haptic feedback allowing the user to physically depress the button. As indicated by lock symbol, pressing of the button may cause the deadbolt 78 to engage. The button 106 may be depressed along a parting line allowing displacement of the button as it is pressed. Should the user desire the deadbolt 78 to disengage, the access code is preferably entered into the touch panel 24.
The touch panel 24 may also use an illuminated keypad. The keypad includes a set of numbers ranging from zero through nine allowing a user to input any combination of numbers as a pass code. The keypad may also include other symbols such as a check mark or battery symbol. Any other symbols may be used as well to convey messages to the user, indicate battery levels, indicate malfunctions, and indicate operational status. The logo may also be used to receive input or indicate operational status.
The numbers may be shown in random order each time the keypad is illuminated thus preventing a potential intruder from learning the access code by seeing residual fingerprints, marks, or wear on the touch panel 24. It is also envisioned that a single touch of the touch overlay 28 may engage the deadbolt 78 when the keypad is not illuminated.
For example, when the touch panel 24 has not received any tactile input for a predetermined time period, it may be configured to power down activating a sleep mode. When in such a sleep mode the keypad may not be visible and the touch panel 24 preferably appears blank. As a user exits a dwelling, the touch panel 24 may still be in sleep mode. Should the user desire to engage the deadbolt 78, the user may simply press the button or if the touch panel 28 does not include button the user may simple touch anywhere on the touch overlay 28 which awakens the touch panel 24 and automatically engages the deadbolt 78. As a result, the user may exit the dwelling leaving it in a secured state without the need to use a physical key, enter a code, or other cumbersome activity.
It is also envisioned that the touch panel 24 may be configured in other shapes in addition to the square shape shown. For example, the touch panel 24 may be round, rectangular, or triangular. In fact, any polygonal shape may be used. The keypad may also be illuminated in round patterns, triangular patterns, or any other patterns and need not be limited to a checkerboard like pattern.
Number | Date | Country | |
---|---|---|---|
62316869 | Apr 2016 | US |