Patent Description:
According to the invention, a loudspeaker assembly includes a mounting bracket, a loudspeaker, and a locking mechanism for releasably securing the loudspeaker in a selected one of a plurality of pitch angles relative to the mounting bracket. The mounting bracket includes a mounting plate for securing the mounting bracket to a flat surface, and a support arm extending outwardly from the mounting plate and a pivot pin extending outwardly from the support arm. The loudspeaker includes an electro-acoustic transducer, and an acoustic enclosure defining a bracket passthrough for receiving the support arm of the mounting bracket such the loudspeaker is pivotable between the plurality of pitch angles and the bracket passthrough defining a pin alignment slot. The pin alignment slot terminates at a ramp feature, which defines a portion of a pin receptacle. The pivot pin rests in the pin receptacle when the support arm is fully inserted into the bracket passthrough, and the loudspeaker is pivotable about the pivot pin when the pivot pin is received within the pin receptacle. The ramp feature inhibits removal of the support arm from the bracket passthrough once the support arm is fully inserted into the bracket passthrough.

Implementations may include one of the following features, or any combination thereof.

In some implementations, the support arm includes a pivot pin, and the loudspeaker defines a pin receptacle within the bracket passthrough for receiving the pivot pin such that the loudspeaker pivots, relative to the mounting bracket, about the pivot pin.

In certain implementations, the mounting bracket includes a lock pin extending outwardly from the support arm, and the loudspeaker defines an array of lock features (e.g., lock holes or notches). The loudspeaker is rotatable relative to the mounting bracket between the plurality of pitch angles to align different one of the lock features with the lock pin at each one of the plurality of pitch angles.

In some examples, the locking mechanism is operable to force the lock pin into engagement with a corresponding one of the lock features in the selected one of the pitch angles.

In certain examples, the locking mechanism includes a switch. The switch includes a lever, and a pivot body. The lever is rotatable about a pivot axis of the pivot body between a first, unlocked position in which the loudspeaker is pivotable relative to the mounting and a second, locked position in which movement of the loudspeaker relative to the mounting bracket is inhibited.

In some cases, the loudspeaker includes a cam pin, and the pivot body includes a cam surface that rides along the cam pin such that, as the as the lever is rotated from the unlocked position toward the locked position, the switch is urged toward the support arm, and thereby pushes the lock pin into one of the plurality of lock features to secure the loudspeaker in the selected pitch angle.

In certain cases, the loudspeaker includes a cam feature, and the switch includes a second cam surface that is configured to ride along the cam feature such that, as the lever is rotated from the locked position toward the unlocked position, the switch is urged away from the support arm, thereby disengaging the lock pin from one of the plurality of lock features.

In some implementations, the locking mechanism includes a switch lock that is operable to lock the lever in the locked position.

In certain implementations, the switch includes a latch edge that the switch lock engages to lock the lever in the locked position.

In some examples, the switch lock includes a mounting member coupled to the acoustic enclosure, a spring, and a latch coupled to the mounting member via the spring such that the latch is displaceable relative to the acoustic enclosure. The latch is configured to engage the latch edge of the switch thereby to lock the lever in the locked position.

In certain examples, the latch is displaceable relative to the switch, thereby to disengage the latch edge to permit movement of the lever from the locked position to the unlocked position.

In some implementations, the loudspeaker includes a baffle and a back cover which together defines the acoustic enclosure. The back cover may define the bracket passthrough, and the baffle may define the ramp feature.

In certain implementations, the loudspeaker includes a yoke which cooperates with the ramp feature to define the pin receptacle.

In some examples, the mounting bracket includes a lock pin that extends outwardly from the support arm, and the yoke defines an array of lock features. The loudspeaker is rotatable, about the pivot pin and relative to the mounting bracket, between the plurality of pitch angles to align different one of the lock features with the lock pin at each one of the plurality of pitch angles.

In certain examples, the loudspeaker includes a baffle and a back cover which together defines the acoustic enclosure.

In some cases, the back cover defines the bracket passthrough.

In certain cases, the baffle defines an aperture for receiving and supporting the electro-acoustic transducer.

In some implementations, the loudspeaker includes an acoustically transparent grille, and the baffle includes a magnet for coupling the baffle to the grille.

In certain implementations, the locking mechanism includes a lock pin or surface, and the mounting bracket defines an array of lock features, such as lock holes or notches. The loudspeaker is rotatable relative to the mounting bracket between the plurality of pitch angles to align different ones of the lock features with the lock pin or surface at each one of the plurality of pitch angles, and the locking mechanism is operable to displace the lock pin to engage an aligned one of the lock features, thereby to lock the loudspeaker in one of the plurality of pitch angles.

In some examples, the locking mechanism includes a switch. The switch includes a lever, and a pivot body. The lever is rotatable about a pivot axis of the pivot body between a first, unlocked position in which the loudspeaker is pivotable relative to the mounting and a second, locked position in which movement of the loudspeaker relative to the mounting bracket is inhibited.

In certain examples, the locking mechanism includes a switch. The switch includes a displaceable member. The displaceable member is displaceable between a first, unlocked position in which the loudspeaker is pivotable relative to the mounting bracket and a second, locked position in which movement of the loudspeaker relative to the mounting bracket is inhibited.

Another aspect not falling under the scope of the claims features a method that includes securing a mounting bracket to a surface and inserting a support arm of the mounting bracket into a bracket passthrough opening defined by an acoustic enclosure of a loudspeaker. The loudspeaker is rotated relative to the support arm to a selected one of a plurality of pitch angles, and a locking mechanism is engaged to releasably secure the loudspeaker in the selected one of the plurality of pitch angles.

Implementations may include one of the above and/or below features, or any combination thereof.

In some implementations, inserting the support arm of the mounting bracket into the bracket passthrough opening includes causing a pivot pin on the support arm to engage a pin receptacle defined by the loudspeaker.

In certain implementations, engaging the locking mechanism includes rotating a lever to cause a lock pin on the support arm to engage one of an array of lock features defined by the loudspeaker.

In some examples, engaging the locking mechanism includes rotating the lever to a lock position and thereby causing a latch to engage a latch edge on the lever, thereby inhibiting further movement of the lever.

In certain examples, engaging the locking mechanism includes displacing a displaceable member to cause a lock pin on the support arm to engage one of an array of lock features defined by the loudspeaker.

Another aspect provides a method that includes displacing a pair of displaceable members affixed to an acoustic enclosure of a loudspeaker from respective locked positions to respective unlocked positions and displacing distal ends of support arms of a mounting bracket towards each other, thereby to disengage a pair of pivot pins on the support arms from respective ones of a pair of pin receptacles defined by the loudspeaker. The loudspeaker is slid away from the mounting bracket along the support arms, thereby decoupling the loudspeaker from the mounting bracket.

Implementations may include one of the above features, or any combination thereof.

Referring to <FIG> & <FIG>, a loudspeaker assembly <NUM> includes a loudspeaker <NUM> and a mounting bracket <NUM> for mounting the loudspeaker <NUM> to a surface (not shown) such as a wall or ceiling. The loudspeaker <NUM> is rotatably supported by the bracket <NUM> such that the loudspeaker <NUM> can be positioned in several orientations relative to the bracket <NUM>.

With reference to <FIG>, the mounting bracket <NUM> includes a mounting plate <NUM> and a pair of support arms <NUM> for supporting the loudspeaker <NUM> (<FIG> & <FIG>). The mounting plate <NUM> includes a pair of mounting holes <NUM> for receiving fasteners (e.g., screws) for securing the mounting bracket <NUM> to a surface such as a wall or ceiling. The mounting plate <NUM> also includes an opening <NUM> that allows wiring, i.e., for powering the loudspeaker <NUM> (<FIG>), to pass therethrough.

Each of the support arms <NUM> include a first end <NUM> that is coupled to the mounting plate <NUM>. And a second, free end <NUM> opposite the first end <NUM>. Each of the support arms <NUM> includes a pivot pin <NUM> and a lock pin <NUM> proximal to the free end <NUM>. The mounting bracket <NUM> may be formed from metal.

Referring to <FIG>, the loudspeaker <NUM> includes a baffle <NUM> and a back cover <NUM> that together define an acoustic enclosure <NUM>. The back cover <NUM> defines a pair bracket passthroughs <NUM> for receiving the support arms <NUM>. Each of the passthroughs <NUM> defines a corresponding pin alignment slot <NUM> for accommodating the pivot and lock pins <NUM>, <NUM> during insertion of the support arms <NUM>. With reference to <FIG>, each of the pin alignment slots <NUM> includes a tapered wall that terminates at a ramp feature <NUM>, which defines a portion of a pin receptacle <NUM> for a receiving a corresponding one of the pivot pins <NUM>. In the illustrated example, the ramp features <NUM> are defined by, e.g., integrally molded in, the baffle <NUM> (<FIG>).

During assembly, the support arms <NUM> are inserted in the bracket passthroughs <NUM> with their pivot pins <NUM> aligned with corresponding ones of the pin alignment slots <NUM>, as shown in <FIG>. As the loudspeaker <NUM> is moved along the support arms <NUM>, the pivot pins <NUM>, guided by the tapered walls of the pin alignment slots <NUM>, will ride up the ramp features <NUM> and snap into place in the pin receptacles <NUM>, as shown in <FIG> & <FIG>. Once the pivot pins <NUM> are engaged in the pin receptacles <NUM>, the support arms <NUM> will be unable to travel any further toward the front surface of baffle <NUM>. In this position, the support arms <NUM> can only be removed from the loudspeaker <NUM> by displacing the free ends of the arms <NUM> towards each other to disengage the pivot pins <NUM> from the pin receptacles <NUM>.

With the pivot pins <NUM> snapped in place in the pin receptacles <NUM>, the loudspeaker <NUM> can pivot about the pivot pins <NUM>. The range of motion is determined, in part, by the dimension of the bracket passthroughs <NUM> (<FIG>). In the illustrated implementation, the loudspeaker <NUM> is rotatable over a <NUM>-degree angle relative to the support arms <NUM>.

As shown in <FIG>, the baffle <NUM> defines a pair of openings <NUM> within which the ramp features <NUM> (<FIG>) are disposed. The openings <NUM> accommodate the free ends <NUM> of the support arms <NUM> and are dimensioned to enable the rotation of the loudspeaker <NUM> relative to the mounting bracket <NUM>. A yoke <NUM> is mounted within each of the openings <NUM>. In that regard, each yoke <NUM> includes a pair of mounting tabs <NUM> (two shown in <FIG>), which are received within corresponding recesses formed in the baffle <NUM> and are secured in place, e.g., with fasteners.

Referring to <FIG>, each of the yokes <NUM> include a first end <NUM>, which, together with a corresponding one of the ramp features <NUM>, defines one of the pin receptacles <NUM> (<FIG>). A second, opposite end of each yoke <NUM> defines an array of locking holes <NUM> for receiving a corresponding one of the lock pins <NUM> (<FIG>). Depending on the orientation of the loudspeaker <NUM> relative to the mounting bracket <NUM>, the lock pins <NUM> engage different ones of the locking holes <NUM>. The illustrated configuration allows the loudspeaker <NUM> the be positioned between a <NUM>-degree position and a <NUM> degree position in <NUM> degree increments. As shown in <FIG>, in some implementations a visible surface of the yoke(s) <NUM> may be embossed with, or have printed thereon, angle markers to provide the user with a visual indication of the angle of orientation of the loudspeaker <NUM>.

In the illustrated implementation, the loudspeaker <NUM> also includes a pair of locking mechanisms <NUM> (<FIG>). Each locking mechanism <NUM> includes a switch <NUM> and a switch lock <NUM>. Once the loudspeaker <NUM> is oriented at the desired pitch, the user can actuate the locking mechanisms <NUM> to hold it in place. The locking mechanisms <NUM> will both lock the pitch angle and secure the mounting bracket <NUM> in the loudspeaker <NUM> by pushing the lock pins <NUM> deeper into the locking holes <NUM> (<FIG>).

Each switch <NUM> resides within one of the openings <NUM> in the baffle <NUM> such that the corresponding support arm <NUM> is disposed between the switch <NUM> and the corresponding yoke <NUM>. Referring to <FIG>, each switch <NUM> includes a lever <NUM> and a pivot body <NUM>. As shown in <FIG> & <FIG>, the pivot body <NUM> is rotationally received within a cavity <NUM> defined by the baffle <NUM>. The pivot body <NUM> includes a cam surface <NUM> which engages a cam pin <NUM> disposed with the cavity <NUM>. <FIG> & <FIG> are shown with the switch lock <NUM> (<FIG>) removed to allow the cam surface <NUM> and the cam pin <NUM> to be visible; i.e., in the illustrated embodiment, the cam surface <NUM> and cam pin <NUM> are positioned beneath and covered by the switch lock <NUM> (<FIG>). As the lever <NUM> is displaced (e.g., over an angle of <NUM> degrees) from an unlocked position, <FIG>, to a locked position, <FIG>, the pivot body <NUM> rotates about its pivot axis <NUM> (<FIG>). As the pivot body <NUM> rotates from the unlocked to the locked position, the cam surface <NUM> rides along the tip of the cam pin <NUM> and the pivot body <NUM> is urged toward the corresponding support arm <NUM>, and thereby pushing the lock pin <NUM> (<FIG> & <FIG>) further into one of the lock holes <NUM> (<FIG>) in the corresponding yoke <NUM>.

Once the switch <NUM> is in the locked position, the switch lock <NUM> is engaged to hold the switch <NUM> in place. Referring to <FIG>, each switch lock <NUM> includes a mounting member <NUM> and a latch <NUM> that is coupled to the mounting member <NUM> via a spring <NUM>. With reference to <FIG> & <FIG>, the mounting member <NUM> is mounted (e.g., via fasteners) in a recess in the baffle <NUM> thereby coupling the switch lock <NUM> to the baffle <NUM> and enclosing the pivot body <NUM> of the switch in the cavity <NUM> (<FIG> & <FIG>). The spring <NUM> biases the latch <NUM> outwardly away from the mounting member <NUM> to engage a latch edge <NUM> (see also <FIG>) on a corresponding one of the levers <NUM> when the lever <NUM> is rotated to the locked position. The baffle, back cover, yoke, switch and switch lock may be formed from molded plastic.

The loudspeaker <NUM> can be reoriented or removed from the mounting bracket <NUM> by pressing on the latch <NUM> to displace it towards its associated mounting member <NUM> to release the lever <NUM>, the lever <NUM> can then be rotated back to the unlocked position (<FIG>). The support arms <NUM> may be biased slightly inwards, such that, as the lever <NUM> is rotated towards the unlocked position, the support arms <NUM> push on the switch <NUM> to keep the cam surface <NUM> engaged with the cam pin <NUM>. Alternatively or additionally, a surface of the switch <NUM> opposite the pivot body <NUM> can be provided with a second cam surface <NUM> (see also <FIG>) that is configured to ride along a cam feature <NUM> (e.g., a second cam pin, <FIG>) on the baffle <NUM> or yoke <NUM> to move the switch <NUM> away from the corresponding support arm <NUM> as it is displaced toward the unlocked position. Once in the unlocked position, the loudspeaker <NUM> can be rotated relative to the mounting bracket <NUM> to change the pitch angle, or, to remove the loudspeaker <NUM>, the free ends <NUM> (<FIG>) of the support arms <NUM> can be pressed towards each other to disengage the pivot pins <NUM> from pin receptacles <NUM>, and then the loudspeaker <NUM> can be pulled away from the mounting bracket <NUM>.

Referring to <FIG>, the baffle <NUM> also defines an aperture <NUM> for receiving an electro-acoustic transducer <NUM>. The electro-acoustic transducer <NUM> is mounted to the baffle <NUM> such that a rear radiating surface of the transducer radiates acoustic energy into the acoustic enclosure <NUM> defined by baffle <NUM> and the back cover <NUM>. A front radiating surface of the electro-acoustic transducer <NUM> radiates acoustic energy outwardly, away from the acoustic enclosure <NUM>.

A plurality of magnets <NUM> are disposed along an outer surface of the baffle <NUM>. The magnets <NUM> enable attachment of an acoustically transparent loudspeaker grille <NUM>. The grille <NUM> may be made of metal and/or may be provided with magnets to help enable attachment to the baffle <NUM>. As shown in <FIG>, the baffle <NUM> may also define an acoustic port <NUM> that is acoustically coupled to the acoustic enclosure <NUM>.

While an implementation has been described in which the support arms are provide with lock pins and the yokes are provided with an array of lock holes, in other implementations each of the support arms may be provided with a lock hole and each of the yokes may define an array of lock pins for engaging the lock holes in the support arms.

Furthermore, while lock "holes" are described and shown, other implementations may make use of other lock features, such as notches, for the lock pins to engage with.

While some implementations employ lock holes in the yokes for the lock pins on the support arms to engage with, in some implementations, the yokes may provide a smooth surface for the lock pins, or other features on the support arms, to frictionally engage with. In some instances, the lock pins can be rubberized to assist in forming a frictional engagement with a surface of the yoke.

In some implementations, only a single lock mechanism may be necessary. In which case, only one of support arms may include a lock pin for working cooperative with the lock mechanism. Such implementations may only use a single yoke.

In still other embodiments, the free ends of the support arms may define respective arrays of lock holes (or another form of lock features) and a lock pin may be mounted to the loudspeaker for engaging the lock holes in the support arms. For example, <FIG> & <FIG> illustrate another loudspeaker assembly <NUM> that includes a loudspeaker <NUM> and a mounting bracket <NUM> for mounting the loudspeaker <NUM>. The loudspeaker <NUM> is rotatably supported by the bracket <NUM> such that the loudspeaker <NUM> can be positioned in several orientations relative to the bracket <NUM>.

With reference to <FIG>, the mounting bracket <NUM> includes a mounting plate <NUM> and a pair of support arms <NUM> for supporting the loudspeaker <NUM> (<FIG> & <FIG>). The mounting plate <NUM> includes a set of mounting holes <NUM> for receiving fasteners (e.g., screws) for securing the mounting bracket <NUM> to a surface such as a wall or ceiling. The mounting plate <NUM> also includes an opening <NUM> that allows wiring, i.e., for powering the loudspeaker <NUM> (<FIG> & <FIG>), to pass therethrough.

Each of the support arms <NUM> includes a first end <NUM> that is coupled to the mounting plate <NUM>. And a second, free end <NUM> opposite the first end <NUM>. Each of the support arms <NUM> includes a pivot pin <NUM> proximal to the free end. Notably, in this configuration, each of the support arms <NUM> includes a plurality of locking holes <NUM> near its free end <NUM>.

Referring to <FIG>, the loudspeaker <NUM> includes a baffle <NUM> and a back cover <NUM> that together define an acoustic enclosure <NUM>. The back cover <NUM> defines a pair of bracket passthroughs <NUM> for receiving the support arms <NUM>. Each of the passthroughs <NUM> defines a corresponding pin alignment slot <NUM> for accommodating the pivot pins <NUM> during insertion of the support arms <NUM>. As shown in <FIG>, a visible surface of the support arms <NUM> may be embossed with, or have printed thereon, angle markers <NUM> to provide the user with a visual indication of the angle of orientation of the loudspeaker <NUM>.

With reference to <FIG>, each of the pin alignment slots <NUM> terminates at a ramp feature <NUM>, which defines a portion of a pin receptacle <NUM> for a corresponding one of the pivot pins <NUM>. In the illustrated example, the ramp features <NUM> are defined by, e.g., integrally molded in, the baffle <NUM>.

During assembly, the support arms <NUM> are inserted in the bracket passthroughs <NUM> with their pivot pins <NUM> aligned with corresponding ones of the pin alignment slots <NUM>, as shown in <FIG> & <FIG>. As the loudspeaker <NUM> is moved along the support arms <NUM>, the pivot pins <NUM>, guided by the pin alignment slots <NUM>, will ride up the ramp features <NUM> and snap into place in the pin receptacles <NUM>, as shown in <FIG> & <FIG>. Once the pivot pins <NUM> are engaged in the pin receptacles <NUM>, the support arms <NUM> will be unable to travel any further toward the front surface of baffle <NUM>. In this position, the support arms <NUM> can only be removed from the loudspeaker <NUM> by displacing the free ends of the arms <NUM> towards each other to disengage the pivot pins <NUM> from the pin receptacles <NUM>.

As shown in <FIG>, the baffle <NUM> defines a pair of openings <NUM> within which the ramp features <NUM> (<FIG>) are disposed. The openings <NUM> accommodate the free ends <NUM> (one shown in <FIG>) of the support arms <NUM> and are dimensioned to enable the rotation of the loudspeaker <NUM> relative to the mounting bracket <NUM>.

With reference to <FIG>, the loudspeaker <NUM> also includes a pair of locking mechanisms <NUM>. Each locking mechanism <NUM> includes a switch <NUM>, a switch lock <NUM> (one shown in <FIG>), and a spring-loaded lock pin <NUM> (<FIG>). Once the loudspeaker <NUM> is oriented at the desired pitch, the user can actuate the locking mechanism <NUM> to hold it in place. The locking mechanisms <NUM> will both lock the pitch angle and secure the mounting bracket <NUM> in the loudspeaker <NUM> by pushing the lock pins <NUM> deeper into aligned ones of the locking holes <NUM> (<FIG>).

Referring to <FIG> & <FIG>, each switch <NUM> includes a lever <NUM> and a pivot body <NUM>. The pivot body <NUM> includes cam surfaces <NUM>. A first end <NUM> (<FIG>) of the lock pin <NUM> is coupled to the pivot body <NUM>. A second, free end <NUM> (<FIG>) of the lock pin <NUM> extends outwardly from the pivot body <NUM> along a pivot axis <NUM> of the pivot body <NUM>. A compression spring <NUM> circumferentially surrounds the lock pin <NUM>. A first end <NUM> of the spring <NUM> is coupled to the lock pin <NUM> (e.g., via a lock washer <NUM>). A second end <NUM> of the spring <NUM> is arranged to engage the switch lock <NUM> such that, when assembled, the lock pin <NUM> is spring-biased toward the direction of a corresponding one of the support arms <NUM>.

With reference to <FIG> & <FIG>, each of the switch locks <NUM> includes a mounting member <NUM> and a cover member <NUM>. The mounting member <NUM> includes a pair of mounting tabs <NUM> for securing the switch lock <NUM> to the baffle <NUM>. The mounting member <NUM> also defines a pocket <NUM> for receiving the free end <NUM> (<FIG>) of a corresponding one of the support arms <NUM> (<FIG>). A hole <NUM> is provided in the pocket <NUM> for accommodating the free end <NUM> (<FIG>) of a corresponding one of the lock pins <NUM> (<FIG>). Adjacent the pocket <NUM>, the mounting member <NUM> defines a first portion of a spring retention chamber <NUM> (<FIG>) for receiving and retaining the compression spring <NUM> (<FIG>). The cover member <NUM> defines a second portion of the spring retention chamber <NUM> and is secured to the mounting member <NUM>, via respective mounting tabs 1810a, 1810b (e.g., with fasteners coupling the mounting tabs), on the mounting member <NUM> and the cover member <NUM> such that the cover member <NUM> and the mounting member <NUM> together define the spring retention chamber <NUM> and an aperture <NUM> for accommodating a corresponding one of the lock pins <NUM> (<FIG>).

The mounting member <NUM> and the cover member <NUM> also define cam pins <NUM> for engaging the cam surfaces <NUM> (<FIG>) of a corresponding one of the switches <NUM> (<FIG>). A latch <NUM> is coupled to the mounting member <NUM> via a spring <NUM>. The mounting member <NUM> and the cover member <NUM> may be formed as molded plastic parts.

With reference to <FIG>, and <FIG>, as the lever <NUM> is displaced (e.g., over an angle of <NUM> degrees) from an unlocked position (<FIG> & <FIG>) to a locked position (<FIG> & <FIG>) the pivot body <NUM> rotates about its pivot axis <NUM>. As the pivot body <NUM> rotates from the unlocked to the locked position, the cam surface <NUM> (<FIG>) rides along the tip of the cam pins <NUM> (<FIG>) and is urged toward the corresponding support arm <NUM>, and thereby allowing the lock pin <NUM> to be displaced, via the biasing force from the compression spring <NUM> acting on a rear wall <NUM> (<FIG>) of the spring retention chamber <NUM> and the lock washer <NUM>, through an aligned one of the lock holes <NUM> (<FIG>) and into the hole <NUM> in the mounting member <NUM> of the switch lock <NUM>.

Once the switch <NUM> is in the locked position, the latch <NUM> engages a latch edge <NUM> (<FIG>)
to hold the switch <NUM> in place. The latch <NUM> can be disengaged by manually displacing it away from the latch edge <NUM> to allow the lever <NUM> to be rotated to the unlocked position (<FIG> & <FIG>). As the lever <NUM> is rotated from the locked position to the unlocked position, the cam surfaces <NUM> of the switch <NUM> rides along the tips of the cam pins <NUM> on the switch lock <NUM> causing the lever <NUM> to be displaced away from the switch lock <NUM>, which compresses the compression spring <NUM> within the spring retention chamber <NUM> and withdraws the lock pin <NUM> from the locking hole <NUM>, thereby allowing the loudspeaker <NUM> (<FIG>) to be adjusted to a different angular position relative to the mounting bracket <NUM> (<FIG>).

A plurality of magnets <NUM> are disposed along an outer surface of the baffle <NUM>. The magnets <NUM> enable attachment of an acoustically transparent loudspeaker grille <NUM>. The grille <NUM> may be made of metal and/or may be provided with magnets to help enable attachment to the baffle <NUM>. As shown in <FIG>, the baffle <NUM> may also define a plurality of acoustic ports <NUM> that are acoustically coupled to the acoustic enclosure <NUM>.

While implementations have been described which make use of a rotatable lever for locking and unlocking movement of a loudspeaker relative to a mounting bracket, this could be accomplished by linear motion as well as rotational motion. Overall there are a lot of mechanisms that could be used to lock the pitch using the same lock pin/lock features concept.

Claim 1:
A loudspeaker assembly (<NUM>), comprising:
a mounting bracket (<NUM>) comprising:
a mounting plate (<NUM>) for securing the mounting bracket to a flat surface; and
a support arm (<NUM>) extending outwardly from the mounting plate; and
a pivot pin (<NUM>) extending outwardly from the support arm, and
a loudspeaker comprising:
an electro-acoustic transducer (<NUM>); and
an acoustic enclosure (<NUM>) defining a bracket passthrough (<NUM>) for receiving the support arm (<NUM>) of the mounting bracket such the loudspeaker is pivotable between a plurality of pitch angles relative to the mounting bracket;
wherein the bracket passthrough defines a pin alignment slot (<NUM>, <NUM>) for accommodating the pivot pin when the support arm is inserted into the bracket passthrough and wherein the pin alignment slot terminates at a ramp feature (<NUM>, <NUM>), which defines a portion of a pin receptacle;
a locking mechanism (<NUM>) for releasably securing the loudspeaker in a selected one of the plurality of pitch angles, and
wherein the pivot pin rests in the pin receptacle when the support arm is fully inserted into the bracket passthrough,
wherein the loudspeaker is pivotable about the pivot pin when the pivot pin is received within the pin receptacle, and
wherein the ramp feature inhibits removal of the support arm from the bracket passthrough once the support arm is fully inserted into the bracket passthrough.