Patent Description:
The following presents a simplified summary of some embodiments of the invention in order to provide a basic understanding of the invention. This summary is not an extensive overview of the invention. It is not intended to identify key/critical elements of the invention or to delineate the scope of the invention. Its sole purpose is to present some embodiments of the invention in a simplified form as a prelude to the more detailed description that is presented later.

An object of the present invention is to provide for a single-point locking system to secure multiple access points.

Specific embodiments of the present invention provide for a wirelessly controlled locking apparatus and system to secure the back panels of a data cabinet comprising a series of ¼ turn cam latches.

An object of the present invention is to provide for an electronic locking system that eliminates the need to install multiple padlocks or other devices to secure a rear access panel or door panel of an enclosure, such as a data cabinet or an electronics cabinet.

Specific embodiments of the present invention provide for a wirelessly controlled blocking apparatus being operably engaged via a secured wireless communication interface. Specific embodiments of the present invention provide for a wirelessly controlled blocking apparatus comprising one or more blocker bars being configured to enable the user to open/lock one or more access panels without the need for a physical key or multiple padlocks.

<CIT> discloses a closure system comprising a locking arrangement. In particular, the locking arrangement comprises a rotary latch arrangement having an evaluatable door contact. The closure system comprises a sliding shoe placed on the locking tongue of a rotary latch mounted in a door, for running onto a sliding ramp supported by the door frame. The sliding shoe comprises a housing with a recess for the insertion of a magnet or a magnetic field sensor acting in a contactless manner.

<CIT> discloses a locking device for allowing a first enclosure element to be locked relative to a second enclosure element. The locking device comprises a lock body and a latch member moveable relative to the lock body between a first latched position of the locking device, and a second unlatched position of the locking device. A manually operable handle is rotatable relative to the lock body for operating the latch member between the first position and the second position, and a locking member is moveable between a first position in which it prevents operation of the latch member by the handle by locking the handle against rotation relative to the lock body, and a second position in which it does not prevent operation of the latch member by the handle. A first, manually operable, locking member controller is provided to move the locking member between the first and second positions, and a second locking member controller, which can be electrically actuated by the security system of a vehicle, to move the locking member between the first and second positions.

According to a first aspect of the present invention, there is provided a keyless locking system comprising a first cam assembly comprising a cam latch configured to be securely interfaced with a quarter- turn bracket and an adapter portion configured to interface with a second cam assembly, wherein the second cam assembly comprises a quarter-turn cam latch configured to selectively secure an access panel or door panel of an enclosure; a strike plate assembly coupled to the quarter-turn cam latch of the second cam assembly, the strike plate assembly comprising a strike plate and a strike pin coupled to the strike plate; a locking assembly configured to be coupled to an inside surface of the access panel or door panel of the enclosure, the locking assembly comprising a locking mechanism configured to selectively secure the strike pin when configured in a locked position and release the strike pin when configured in an unlocked position; and an electronic actuator comprising at least one wireless receiver, a driver mechanism and a power supply, wherein the electronic actuator is configured to engage the driver mechanism upon wirelessly receiving an access code signal from an electronic device, wherein the driver mechanism, when engaged, is configured to disengage the locking assembly from a locked position to an unlocked position.

In accordance with certain embodiments of the keyless locking system, the locking assembly may comprise a pawl member and a trigger member, the trigger member comprising a tooth portion configured to selectively restrict rotation of the pawl member. In certain embodiments, the driver mechanism may be configured to rotate the trigger member to release the pawl member. In certain embodiments, the strike pin may be configured to rotate the pawl member to configure the locking assembly from an unlocked position to a locked position. In certain embodiments, the strike plate may be configured to restrict rotation of the quarter-turn cam latch when the strike pin is selectively secured by the locking mechanism when configured in the locked position.

Further preferred embodiments of the present invention provide for a keyless locking system comprising at least one cover plate configured to be selectively secured to an outside surface of an access panel of an enclosure, the at least one cover plate configured to conceal a housing of a panel cam lock on the outside surface of the access panel of the enclosure; a first cam assembly comprising a first cam latch configured to be selectively interfaced with a bracket coupled to the outside surface of the access panel of the enclosure and configured to secure the at least one cover plate to the access panel of the enclosure when the first cam latch is engaged in a locked position; a cam adapter coupled to or disposed on the first cam latch and configured to interface with a second cam assembly, wherein the second cam assembly comprises a second cam latch configured to selectively secure the access panel to the enclosure when the second cam latch is engaged in a locked position; a strike plate assembly coupled to the second cam latch of the second cam assembly, the strike plate assembly comprising a strike plate and a strike pin coupled to the strike plate; a locking assembly configured to be coupled to an inside surface of the access panel of the enclosure, the locking assembly comprising a locking mechanism configured to selectively secure the strike pin when configured in a locked position and release the strike pin when configured in an unlocked position; and an electronic actuator comprising at least one wireless receiver, a driver mechanism and a power supply, wherein the electronic actuator is configured to actuate the driver mechanism upon wirelessly receiving an access code signal from an electronic device, wherein the driver mechanism, when actuated, is configured to disengage the locking assembly from a locked position to an unlocked position.

In accordance with preferred embodiments of the present invention a keyless locking system may further comprise at least one locking bar configured to be selectively interfaced with the bracket and configured to secure the at least one cover plate to the access panel of the enclosure when the first cam latch is engaged in the locked position. In accordance with certain embodiments, the at least one cover plate may be configured to be selectively removed from the outside surface of the access panel of the enclosure when the first cam latch is engaged in the unlocked position. In certain embodiments, the locking assembly may comprise a pawl member and a trigger member, the trigger member comprising a tooth portion configured to selectively restrict rotation of the pawl member. In certain embodiments, the driver mechanism is configured to rotate the trigger member to release the pawl member. In certain embodiments, the strike pin may be configured to rotate the pawl member to configure the locking assembly from the unlocked position to the locked position. In certain embodiments, the strike plate may be configured to restrict rotation of the second cam latch when the strike pin is selectively secured by the locking mechanism when configured in the locked position. In certain embodiments, the cam adapter may be configured to rotate the second cam latch simultaneously with the first cam latch.

According to a second aspect of the present invention, there is provided a keyless locking apparatus of the first aspect of the invention; a second cam assembly comprising a second cam latch configured to selectively secure the access panel of the enclosure when the second cam latch is engaged in a locked position; a cam adapter coupled to or disposed on the first cam latch and operably interfaced with the second cam assembly, wherein the cam adapter is configured to rotate the second cam latch simultaneously with the first cam latch; a strike plate assembly coupled to the second cam latch of the second cam assembly, the strike plate assembly comprising a strike plate and a strike pin coupled to the strike plate; and an electronic locking assembly configured to be coupled to an inside surface of the access panel of the enclosure, the electronic locking assembly comprising a locking mechanism configured to selectively secure the strike pin when configured in a locked position and selectively release the strike pin when configured in an unlocked position, wherein the electronic locking assembly is configured to selectively release the strike pin upon wirelessly receiving an access code signal from an electronic device.

In accordance with certain embodiments, the electronic locking assembly may further comprise an electronic actuator configured to actuate a driver mechanism to selectively release the strike pin. The electronic locking assembly may further comprise a pawl member and a trigger member, the trigger member comprising a tooth portion configured to selectively restrict rotation of the pawl member. In certain embodiments, the electronic locking assembly may be configured to rotate the trigger member to selectively release the strike pin upon wirelessly receiving the access code signal from the electronic device.

According to a third aspect of the present invention, there is provided a method for securing an access panel of an enclosure comprising installing a keyless locking apparatus of the second aspect of the invention on the access panel of the enclosure; configuring the first cam latch and the second cam latch in the locked position; selectively securing the strike pin with the electronic locking assembly; and selectively releasing the strike pin upon wirelessly receiving the access code signal from the electronic device communicably engaged with the electronic locking assembly. In certain embodiments, the method may further comprise securing at least one cover plate to the outside surface of the access panel of the enclosure. In certain embodiments, the at least one cover plate may be configured to conceal a cam lock housing on the outside surface of the access panel of the enclosure.

The foregoing has outlined rather broadly the more pertinent and important features of the present invention so that the detailed description of the invention that follows may be better understood and so that the present contribution to the art can be more fully appreciated. Additional features of the invention will be described hereinafter which form the subject of the claims of the invention. It should be appreciated by those skilled in the art that the conception and the disclosed specific methods and structures may be readily utilized as a basis for modifying or designing other structures for carrying out the same purposes of the present invention. It should be realized by those skilled in the art that such equivalent structures do not depart from the scope of the invention as defined by the appended claims.

The above and other objects, features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which:.

Embodiments of the present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all, embodiments of the invention are shown. Indeed, the invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will satisfy applicable legal requirements. Where possible, any terms expressed in the singular form herein are meant to also include the plural form and vice versa, unless explicitly stated otherwise. Also, as used herein, the term "a" and/or "an" shall mean "one or more," even though the phrase "one or more" is also used herein. Furthermore, when it is said herein that something is "based on" something else, it may be based on one or more other things as well. In other words, unless expressly indicated otherwise, as used herein "based on" means "based at least in part on" or "based at least partially on. " Like numbers refer to like elements throughout.

The terminology used herein is for describing particular embodiments only and is not intended to be limiting of the embodiments. It will be further understood that the terms "comprises," "comprising," "includes," and/or "including,", and variants thereof, when used herein, specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof.

It will be understood that when an element is referred to as being "coupled," "connected," or "responsive" to another element, it can be directly coupled, connected, or responsive to the other element, or intervening elements may also be present. In contrast, when an element is referred to as being "directly coupled," "directly connected," or "directly responsive" to another element, there are no intervening elements present.

Spatially relative terms, such as "above," "below," "upper," "lower," "top, "bottom," and the like, may be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. For example, if the device in the figures is turned over, elements described as "below" other elements or features would then be oriented "above" the other elements or features. Thus, the term "below" can encompass both an orientation of above and below.

It will be understood that, although the terms "first," "second," etc. may be used herein to describe various elements, these elements should not be limited by these terms. Thus, a first element could be termed a second element without departing from the teachings of the present embodiments. Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which these embodiments belong. It will be further understood that terms, such as those defined in commonly-used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

It should be appreciated that various concepts introduced above and discussed in greater detail below may be implemented in any of numerous ways, as the disclosed concepts are not limited to any particular manner of implementation. Examples of specific implementations and applications are provided primarily for illustrative purposes. The present invention should in no way be limited to the exemplary implementation and techniques illustrated in the drawings and described below.

Where a range of values is provided, it is understood that each intervening value, to the tenth of the unit of the lower limit unless the context clearly dictates otherwise, between the upper and lower limit of that range and any other stated or intervening value in that stated range is encompassed by the invention. The upper and lower limits of these smaller ranges may independently be included in the smaller ranges, and are also encompassed by the invention, subject to any specifically excluded limit in a stated range. Where a stated range includes one or both of the endpoint limits, ranges excluding either or both of those included endpoints are also included in the scope of the invention.

As used herein, "exemplary" means serving as an example or illustration and does not necessarily denote ideal or best.

As used herein, the term "includes" means includes but is not limited to; the term "including" means including but not limited to.

As used herein, the term "packet" refers to any formatted unit of data that may be sent and/or received by an electronic device.

As used herein, the term "payload" refers to any part of transmitted data that constitutes an intended message and/or identifying information.

As used herein, the term "interface" refers to any shared boundary across which two or more separate components of a computer system may exchange information. The exchange can be between software, computer hardware, peripheral devices, humans, and combinations thereof.

As used herein, the term "advertising" or "advertisement" refers to any transmitted packet configured to establish a data transfer interface between two electronic devices. An "advertising" or "advertisement" may include, but is not limited to, a BLE advertising packet transmitted by a peripheral device over at least one Bluetooth advertisement channel.

Certain aspects of the present invention provide for a wirelessly controlled blocking apparatus to enable a single-point locking system for securing multiple access points. In accordance with certain embodiments, the wirelessly controlled blocking apparatus is utilized to secure an access panel of an enclosure, such as an electronics cabinet. In accordance with certain preferred embodiments, an electronics cabinet comprises a plurality of quarter-turn cam latches being installed on the access panel and configured to selectively secure the access panel to an opening of the enclosure.

Turning now descriptively to the drawings, in which similar reference characters denote similar elements throughout the several views, <FIG> depicts a keyless locking system installed on an access panel of an enclosure. According to certain aspects of the present invention, a panel <NUM> may comprise an access panel or a door for an enclosure, such as a data cabinet, an electrical cabinet and the like. In accordance with certain embodiments, an access panel or door comprises one or more quarter-turn panel cam configured to selectively secure the access panel or door to a perimeter or opening of the enclosure. A keyless locking system in accordance with certain aspects of the present invention may comprise one or more cover bar; for example, cover bar <NUM>a and cover bar <NUM>b. Cover bar <NUM>a and cover bar 104b may be coupled to an outside surface of panel <NUM> to conceal one or more quarter-turn panel cams; for example, quarter-turn panel cams <NUM>a-f (as shown in <FIG>). A center bar <NUM> may extend between cover bar <NUM>a and cover bar <NUM>b and may be coupled to cover bar <NUM>a at a first end and coupled to cover bar <NUM>b at a second end. An external cam <NUM> may be coupled to center bar <NUM> at the first end of center bar <NUM> and may be configured to selectively couple center bar <NUM> to cover bar <NUM>a.

Referring now to <FIG> and <FIG>, plan views of the keyless locking system installed on panel <NUM> are shown, according to the present invention. In certain embodiments, panel <NUM> may comprise a plurality of quarter-turn panel cams coupled to panel <NUM> and extending from an outside surface of panel <NUM> (as shown in <FIG>) to an inside surface of panel <NUM>; for example, quarter-turn panel cams <NUM>a-f Panel cams <NUM>a-f may be configured to selectively couple panel <NUM> to vertical bars <NUM>a and <NUM>b of the enclosure (not pictured). The keyless locking system comprises a strike plate <NUM> coupled to a cam latch <NUM>a of quarter-turn panel cam <NUM>a. A locking assembly <NUM> may be coupled to an inside surface of panel <NUM> and is selectively interfaced with a strike plate pin <NUM> and configured to block strike plate pin <NUM> and restrict quarter-turn panel cam <NUM>a from turning when strike plate pin <NUM> is interfaced with locking assembly <NUM> in a locked configuration.

Referring now to <FIG>, perspective views of components of the keyless locking system installed on panel <NUM> are shown, according to certain embodiments of the present invention. In certain embodiments, one or more quarter-turn brackets <NUM> may be coupled to an outside surface of panel <NUM>; for example, quarter-turn bracket <NUM>b and quarter-turn bracket <NUM>d. In certain embodiments, quarter-turn bracket <NUM>b and quarter-turn bracket 118d may be coupled to quarter-turn cam <NUM>b and quarter-turn cam <NUM>d, respectively. In certain embodiments, the keyless locking system may further comprise a cover bar tab <NUM>a mateably interfaced with quarter-turn bracket <NUM>b and a cover bar tab <NUM>b mateably interfaced with quarter-turn bracket <NUM>d. In certain embodiments, cover bar tab <NUM>a and cover bar tab <NUM>b may be configured to secure cover bar <NUM>a and cover bar <NUM>b to quarter-turn bracket <NUM>b and quarter-turn bracket <NUM>d, respectively. In accordance with certain embodiments, as shown in <FIG>, cover bar <NUM>a may comprise a cam access aperture <NUM> defining an opening in cover bar <NUM>a. Cam access aperture <NUM> may be configured to enable external cam <NUM> (as shown in <FIG>) to pass therethrough. In accordance with certain embodiments, as shown in <FIG>, center bar <NUM> may be coupled to cover bar <NUM>b by interfacing a center bar connector <NUM> extending from an end of center bar <NUM> with a center bar slot <NUM> disposed on a surface of cover bar <NUM>b. In accordance with certain embodiments, upon interfacing center bar connector <NUM> of center bar <NUM> with center bar slot <NUM> of cover bar <NUM>b, center bar <NUM> may be rotated laterally to interface with cover bar <NUM>a at an opposite end of center bar <NUM>.

Referring now to <FIG>, perspective views of external cam <NUM> are shown. According to certain embodiments of the present invention, external cam <NUM> may comprise an external cam body <NUM>, an external cam latch <NUM> and a cam adapter <NUM>. As shown in <FIG>, cam adapter <NUM> may be configured to interface with panel cam housing <NUM> of panel cam <NUM>a. According to certain embodiments, cam adapter <NUM> may be configured to rotate panel cam <NUM>a together with external cam <NUM> such that panel cam latch <NUM>a and external cam latch <NUM> may be simultaneously rotated upon a user rotating external cam <NUM>. In accordance with certain embodiments, strike plate <NUM> may be operably interfaced with panel cam latch <NUM>a and coupled to external cam body <NUM> via a screw <NUM> such that strike plate <NUM> and panel cam latch <NUM>a may be simultaneously rotated upon a user rotating external cam <NUM>. Strike plate pin <NUM> may be coupled to strike plate <NUM> and extend laterally from strike plate <NUM>. As shown in <FIG>, external latch <NUM> may be securely interfaced with quarter-turn bracket <NUM>a in a locked configuration when cam adapter <NUM> is interfaced with panel cam <NUM>a.

Referring now to <FIG>, a functional perspective view of a keyless locking system of the present invention is shown in a locked configuration. According the present invention, external cam <NUM> is configured in a closed rotation such that panel cam latch <NUM>a is interfaced with enclosure bar <NUM>a. In accordance with an embodiment, locking assembly <NUM> comprises mounting plate <NUM>, electronic actuator <NUM>, and blocker assembly <NUM>. Blocker assembly <NUM> may be configured to receive strike plate pin <NUM> in an unlocked/open configuration and retain/block strike plate pin <NUM> from lateral movement in a locked/closed configuration (as shown in <FIG>). In accordance with the present invention, blocker assembly <NUM> may be configured from an unlocked/open configuration to the locked/closed configuration in response to receiving strike plate pin <NUM>. In accordance with certain embodiments, strike plate pin <NUM> may be configured to rotate a blocker arm of blocker assembly <NUM> downward from an open position to a closed position. Once in the closed position, the blocker arm may be interfaced with a locking mechanism to prevent the blocker arm from rotation, thereby blocking strike plate pin <NUM> from lateral movement and retaining strike plate pin <NUM> in blocker assembly <NUM>. In accordance with certain embodiments of the present invention, and as shown in <FIG>, a mobile electronic device <NUM> may be communicably engaged with electronic actuator <NUM> of locking assembly <NUM> via a wireless communications interface <NUM> (e.g. Bluetooth, BLE, NFC, LoRA etc.). Mobile electronic device <NUM> may be configured to communicate a wireless signal comprising a data packet containing an access code <NUM> to a receiver of electronic actuator <NUM> via wireless communications interface <NUM>. Electronic actuator <NUM> may comprise an integrated circuit or other processing and data storage circuitry configured to receive and authenticate the access code. Upon receiving and authenticating the access code, electronic actuator <NUM> may be configured to engage a driver mechanism to configure blocker assembly <NUM> from a locked configuration to an unlocked configuration (as further shown and described in <FIG>, below).

Referring now to <FIG>, a plan view of electronic locking assembly <NUM> is shown. In certain embodiments of the present invention, electronic locking assembly <NUM> is comprised of blocker assembly <NUM>, mounting plate <NUM>, and electronic actuator <NUM>. In accordance with certain embodiments, blocker assembly <NUM> may be comprised of a pawl member <NUM>, a trigger member <NUM>, and a blocker housing <NUM>. Blocker assembly <NUM> may be coupled to mounting plate <NUM> above electronic actuator <NUM> such that a lower portion of a trigger member <NUM> is oriented adjacent to a driver member <NUM>. In accordance with certain embodiments, electronic actuator <NUM> may be configured to engage driver member <NUM> to contact and rotate upward trigger member <NUM> upon receiving and authenticating a wireless access code or signal. As shown in <FIG>, pawl member <NUM> and trigger member <NUM> may be mateably interfaced to define a locked/closed configuration of blocker assembly <NUM>. In embodiments of the present invention, pawl member <NUM> may be disposed around a pawl shaft <NUM> and secured within blocker housing <NUM> by pawl retaining spring <NUM>. Trigger member <NUM> may be disposed around trigger shaft <NUM> and secured within blocker housing <NUM> by trigger retaining spring <NUM>. In accordance with certain embodiments, pawl member <NUM> may be mateably interfaced with a tooth portion <NUM> of trigger member <NUM>. A detent spring <NUM> may be interfaced with a receiving portion of pawl member <NUM> to apply rotational force to pawl member <NUM> in order to bias pawl member <NUM> into mateably interfacing with tooth portion <NUM> of trigger member <NUM>. Detent spring <NUM> may be further configured to apply rotational force to pawl member <NUM> in order to rotate pawl member <NUM> in an upward direction and disengage the interface between pawl member <NUM> and tooth portion <NUM> of trigger member <NUM> when trigger member <NUM> is rotated in an upwards direction upon interfacing with driver member <NUM> when engaged by electronic actuator <NUM>.

Referring now to <FIG>, a perspective view of components of electronic actuator <NUM> is shown. In embodiments of the present invention, electronic actuator <NUM> is comprised of an actuator housing <NUM>, an output cam <NUM>, a driver cam <NUM>, driver member <NUM>, a bellows <NUM>, a switch <NUM>, a receiver <NUM> and a wire harness <NUM>. In accordance with certain embodiments, wire harness <NUM> is operably engaged to deliver power to output cam <NUM> and receiver <NUM>. Switch <NUM> may be operably engaged with wire harness <NUM> and receiver <NUM> to selectively close a circuit between wire harness <NUM> and output cam <NUM> to deliver power to output cam <NUM> upon receiving a command signal from receiver <NUM>. Output cam <NUM> may comprise a motor or other electric driver configured to rotate output cam <NUM> upon a delivery of power from switch <NUM>. Output cam <NUM> may be configured to laterally displace driver cam <NUM> to force driver member <NUM> upward (e.g. to engage with trigger member <NUM>, as shown in <FIG>). Switch <NUM> may be configured to deliver power sufficient to drive one full rotation of output cam <NUM> such that output cam <NUM> may laterally displace driver cam <NUM> to force driver member <NUM> upward and return to a starting position. Bellows <NUM> may be configured to seal actuator housing <NUM> of electronic actuator <NUM> to prevent debris and dirt from entering an interior portion of actuator housing <NUM> and may, optionally, be spring loaded to negatively bias driver member <NUM> to a starting position. Although this invention has been described in its exemplary forms with a certain degree of particularity, it is understood that the present invention of has been made only by way of example and numerous changes in the details of construction and combination and arrangement of parts may be employed without departing from the scope of the invention as defined by the appended claims. Therefore, it will be apparent to those skilled in the art that various modifications and variations can be made to the disclosed embodiments without departing from the scope of the invention. In view of the foregoing, it is intended that the invention covers modifications and variations of this invention as defined by the following claims.

Claim 1:
A keyless locking system comprising:
a first cam assembly (<NUM>) comprising a first cam latch (<NUM>) configured to be securely interfaced with a quarter-turn bracket (118a) and an adapter portion (<NUM>) configured to interface with a second cam assembly (<NUM>), wherein the second cam assembly comprises a quarter-turn second cam latch configured to selectively secure an access panel (<NUM>) or door panel (<NUM>) of an enclosure;
a strike plate assembly coupled to the quarter-turn second cam latch of the second cam assembly, the strike plate assembly comprising a strike plate (<NUM>) and a strike pin (<NUM>) coupled to the strike plate;
a locking assembly (<NUM>) configured to be coupled to an inside surface of the access panel or door panel of the enclosure, the locking assembly comprising a locking mechanism (<NUM>) configured to selectively secure the strike pin when configured in a locked position and release the strike pin when configured in an unlocked position; and
an electronic actuator (<NUM>) comprising at least one wireless receiver, a driver mechanism and a power supply, wherein the electronic actuator is configured to engage the driver mechanism upon wirelessly receiving an access code signal (<NUM>) from an electronic device (<NUM>),
wherein the driver mechanism, when engaged, is configured to disengage the locking assembly from a locked position to an unlocked position.