The present invention relates to an electropneumatic air horn system. More particularly, the present invention provides an electropneumatic air horn system that is adaptive to a plurality of fitment and adaptive positions and fixing locations for vehicle and non-vehicle uses.
The related art involves generally electric and electropneumatic horn constructions and systems. Electropneumatic horns are those which generate sound by generated air flow or compressed air and are considered (very broadly due to their typical electrical operation of compressed air or air-supply valving) to be within the wider grouping of electric horns due to the electric control of the generation of the air flow or compressed air. It should be noted that electric horn constructions also include (in addition to pneumatic sound creation) the creation of electronic sound (e.g. speaker type systems) wherein sound or tone is the result of a replay of a recorded electronic signal to a speaker and not the result of an acoustic passage. As a consequence, those of skill in the art will recognize that the use of the phrases electronic, electrical, and electropneumatic shall be considered non-limiting in the following description absent specific use in the particular claims.
Conventionally, electropneumatic horns include acoustic units consisting of a straight tube sound-passage of a length related to the frequency to be reproduced, inserted in an acoustic chamber in which a membrane free to move with a reciprocating motion is arranged and positioned. Also, the straight tube comprises a first stretch with a generally constant cross-section, provided with an inlet mouth for the sound signal generated by the oscillating membrane and a second stretch having a section varying with a generally conic or frustoconic ending with an outlet mouth for the amplified sound signal (e.g., horn shaped).
As used in these conventional electropneumatic horns, the membrane is stretched or positioned during a pre-assembly calibration phase by deformation against the membrane of a member referred to as a ‘sound generator’ and applied to a chamber body, in such a way to generate a sound with manufacturer-desired predetermined acoustic pressure. In an alternatively constructed versions of the related art, the acoustic units are created in a bi-tonal (two vibrating membranes) or mono-tonal (one vibrating membrane) manner and the corresponding tubes are volute wound and juxtaposed to limit the overall dimensions of the horn allowing for reduced-size installations for an entire rigid assembly.
Industrial applications of monolithic electropneumatic horn systems are know from the applicant's and inventor's prior patents, including, but limited U.S. Pat. Nos. 9,318,087, 7,712,430, 7,802,535, 7,938,078, and U.S. D611,864 (all by the present inventor/applicant), the entire contents of each of which are incorporated by reference. Electronic tonal notes created digitally are also known from U.S. Pat. No. 6,489,885 (by the inventor).
As noted in these related references, electropneumatic horn assemblies provided a substantial and numerous improvements over U.S. Pat. No. 7,038,756 (DiGiovani et al.), the entire contents of which are also incorporated herein by reference.
Collectively, the focus of the above-noted conventional references was to securely join acoustic sound wave generator with a compressor assembly in a reliable matter in view of the grave detriments and challenges known in the art. The construction in the '756 patent failed under substantive vibratory use and has been a commercial failure. The commercial success of the products as patented by Solow (noted above) with a monolithic housing provided great reliability and a substantial improvement over the art.
In considering the conventional art, as noted under U.S. Pat. No. 7,038,756 (DiGiovani et al.), reference is now made to
As also noted, dual opposing diaphragm units 3 (front as shown) and 3 (rear side is not shown) respectively receive, via internal chambering (not shown, but visible in the 756 patent) compressed air from compressor unit 6 via respective diaphragm air supply portals 16 (front) and 16 (rear) (the reverse side is not shown). Diaphragm units 3 (front) and 3 (rear) (not shown), operate as sound generators and transmit the sound to the volute acoustic chambers respectively connecting each diaphragm unit 3 to respective horn openings 4A and 4B.
Compressor unit 6 includes an operable motor housing member 14 formed from a very rigid metal body, a bottom electric brush housing member 10, wherein electrical power is received via power supply wires 5, and a top compressor labyrinth member 9. As will be noted from
Housing 2 includes a pair of opposing C-shaped plastic clamp arms 7A and 7B as shown for fixably gripping portions of the external surface of rigid housing member 14. Additionally, an air pathway member 11, having an air intake opening 12 is formed along the wall of the first clamp arm 7A and supplies air to the top air opening or inlet (not shown) in compressor to member 9. Additionally, a single mounting bracket member 17, extends cantilevered rearwardly from compressor unit 6 and compressor pump member 9, allowing attachment to a location typically within an engine compartment or wall (e.g., a dry location, not shown). As noted earlier, system 1 contains a number of relative structural weaknesses, and mounting bracket member 17 is a common location for structural failure and further fails to adapt to numerous locations and surfaces. As can be recognized from the cantilever projection construction shown from compressor labyrinth 9, mounting bracket 17 provides a single-site attachment mechanism, which have been proven to fail when used in high-vibration environments, including automotive and motorcycle mounting environments.
Additionally, it shall be recognized by those of skill in the art that opposing paired clamping arms 7A and 7B slidingly receive compressor unit 6 during initial assembly, and consequently that even with air outlet fixture 13 providing an additional engagement with housing 2, the construction taught in '576 often results in mechanical failure causing separation of compressor unit 6 because there is no physical engagement between the body of the compressor unit 6 and housing 2 other than air outlet fixture 13, and, because there is no mechanism to maintain the tension between clamp arms 7A and 7B to ensure and maintain a clamping pressure, particularly during the thermal expansion common in plastic housings when employed in high temperature environments common in vehicle wall mounting positions. As a consequence of this tendency for mechanical failure, those who review the mechanical units marked with the '576 patent note the inclusion of an additional adhesive double-tape stick portion between clamp arm members 7A and 7B and portions of the wall surfaces of motor housing 14.
The applicants numerous prior patents, listed above addressed these concerns, and others. However the related art fails to provide an adaptive mounting system with a monolithic sound wave generator and remote provided compressor.
Additionally the concerns of the convention art force a combined compressor and horn assembly to necessarily have a cantilevered attachment system away from a fixed mounting point. The conventional art recognizes such an extreme vibration detriment. Additionally, due to the extensive weight of the compressor and motor, this cantilevered arrangement causes an excessive bending moment on the entire housing during engine vibration and road vibration. As a result, a common failure in the conventional art is that the plastic housing stress-fractures or initially fractures and the vibration and weight (weigh enhancing the force of the vibration motive force) quickly extends any initial fracture to a complete fracture causing horn mounting and sound functions to fail. Such exposed members, suddenly fractured, create extensive vehicle-safety and user-safety hazards.
As an additional detriment, the conventional art forces the co-location of both the horn and the compressor units in a fixed-assembly to ensure that the maximum force of compressed air is delivered from the compressor to the horn by elimination of connection points, and to also position the horn source in a user-convenient-position. These concerns cause a number of complementary concerns, including, but not limited to: the need to locate the compressor (an electrical device) in a weather-exposed and moisture-exposed and vibration-exposed location causing failures.
Additionally, the conventional arts require that the combined compressor and horn assembly systems be exposed to weather that additionally detrimentally harms the horn assembly portion. Exposed horn trumpets are at risk of moisture, road-dirt, grime damage creating a negative impact in performance and possibly totally disabling the horn.
Accordingly, there is a need to respond to at least one of the concerns noted herein.
In response, it is now recognized that the invention provides an adaptive electropneumatic horn system include an acoustic sound wave generator including an acoustic duct chambering system. The Acoustic sound wave generator receives compressed air remotely from a compressor member to produce sound and propagate the same externally. A horn mounting system enables ready attachment and fitment of the system to a consumer-desired location which allows positing to a user's preference and is adaptive to constraining geometries and remote locations greatly spacing the acoustic sound wave generator from the compressor member, and as a result a plurality of fitment features provided in the horn mounting system allow positioning to a user's preference.
In one aspect of the present invention there is provided an adaptive electropneumatic horn system, comprising, an electric compressor unit having at least a compressor air inlet and a compressor air outlet for the supply of compressed air and having a first mass; a monolithic housing assembly having a first housing portion and a sound wave generator system substantially housed in said first portion and having a second mass; said sound wave generator system including: at least one acoustic chamber having an opening for introduction of compressed air, a membrane member provided with an opening for sound generation and at least one acoustic duct housed in said housing assembly and communicating between said at least one acoustic chamber and at least one horn outlet to propagate sound generated by said membrane member outside said horn; remote air channeling means for communicating said compressed air between said compressor air outlet of said compressor unit and said opening of said at least one acoustic chamber; and means for securely affixing said electric compressor unit distant and said first mass distant from said monolithic housing assembly having said second mass, whereby said means for securely affixing prevents and said remote air channeling means position said electrical compressor unit and said monolithic housing assembly distant from each other and improves operational stability of said housing assembly.
According to another adaptive and alternative embodiment of the present invention there is additionally provided a securing bracket having an effective shape to secure a compressor against detrimental vibration in a variety of locations.
According to another adaptive and alternative embodiment of the present invention, there is provided, an adaptive electropneumatic horn system, said electric compressor unit is of a cylindraceous external configuration.
According to another adaptive and alternative embodiment of the present invention, there is provided an adaptive electropneumatic horn system, further comprising: a horn covering member shaped to receive therein said monolithic housing assembly and said sound wave generator system substantially housed in said first portion; said monolithic housing assembly including adjustable fixing means for securely affixing said monolithic housing and said sound wave generator to said horn cover.
In another aspect of the present invention there is provided a system that allows a convenient location of a compressor in a weather-protected and moisture-protected and dust-free location of a vehicle or motorcycle (for example in a saddle bag location or other bounded-volume-region) so as to avoid damage during inclement weather, vehicle washing, and vehicle maintenance, and off-road driving. It will be understood, that one alternative and preferred embodiment is use on a motorcycle.
It is another aspect of the present invention the system allows for secure location of a compressor member and assembly in a secure manner linked to a secure location of a vehicle so as to eliminate the affect of vehicle engine or road vibration on the compressor. Additionally, the separation of the compressor assembly from the horn assembly eliminates the detrimental cantilevered
The above and other aspects, features and advantages of the present invention will become apparent from the following description read in conjunction with the accompanying drawings, in which like reference numerals designate the same elements.
3 is a schematic perspective view of the adaptive electropneumatic horn system according to the present invention noting kit components (excluding the partial view of exemplary vehicle cylinder components).
Reference will now be made in detail to embodiments of the invention. Wherever possible, same or similar reference numerals are used in the drawings and the description to refer to the same or like parts or steps. The drawings are in simplified form and are not to precise scale. The word ‘couple’ or ‘connect’ or similar terms do not necessarily denote direct and immediate connections, but also include connections through intermediate elements or devices. For purposes of convenience and clarity only, directional (up/down, etc.) or motional (forward/back, etc.) terms may be used with respect to the drawings. These and similar directional terms should not be construed to limit the scope in any manner. It will also be understood that other embodiments may be utilized without departing from the scope of the present invention, and that the detailed description is not to be taken in a limiting sense, and that elements may be differently positioned, or otherwise noted as in the appended claims without requirements of the written description being required thereto.
Various operations may be described as multiple discrete operations in turn, in a manner that may be helpful in understanding embodiments of the present invention; however, the order of description should not be construed to imply that these operations are order dependent.
Referring now to
As also noted, diaphragm units 33 (front as shown) and 33 (rear is not shown) or acoustic units or one or more sound chambers respectively receive, via internal chambering (not shown), but in communication with air hose 21 via air hose flange 20A receives compressed air from compressor assembly 20 provide air for sound via respective diaphragm air supply portals 36 and 36 (the reverse side is not shown). Diaphragm units 33 and 33 (not shown), operate as sound generators and transmit the sound to the volute acoustic chambers respectively connecting respective acoustic units or sound chambers or diaphragm units 33, 33 to respective horn openings 40A and 40B.
Compressor assembly 20 includes an operable motor housing member 24 formed from a very rigid metal body, a conventional bottom electric brush housing member 10, wherein electrical power is received via power supply source wire 22A, and a top compressor labyrinth member 29 receives air via air intake portal 29A from air intake system 32. As will be noted from
Typically, bottom electronic brush housing member 10 is secured to rigid housing member 24 via a plurality of fixing members (not shown), threaded bolts, spring clips or other reliable means to secure fixidly.
Housing 42 of horn system 40 and acoustic sound wave generator 30 is formed as a continuous monolithic molded member to provide enhanced robustness and rigidity, and for adaptive mounting as will be discussed. As noted, a horn mounting system 50 is not limited to the components herein, but will be understood to include further or different fixtures, brackets, zip-ties, wires, tape, slide brackets or adjustable brackets or other elements required to achieve the functions as noted herein.
Horn mounting system 50 includes an integrally molded top sliding channel 51A (on a top side of compact housing 42 (
In the preferred but non-limiting embodiments noted, sliding channels 51A, 51B are formed in a T-shaped manner to cooperate with, as a non-limiting example, a carriage bolt or bolts, or respective threaded T-bolts 52A (top) 52B (side) and respective securing threaded nuts 53A (top) and 53B (side) as tensioning members or compressive members for use in compressively fixing and securing a projecting fitment 54A (top) 54B (side) to compact horn housing 42, as shown. It will be understood that with that with the proposed construction, fitments 54A, 54B may be pivoted easily about the threaded axis of respective threaded T-bolts 52A, 52B in a complete circle. It will be also noted that respective fitments 54A, 54B are provided with a plurality of fixing openings 55 along a length thereof so that any necessary spacing may be provided between a securing bracket 102 or other mounting location. Additionally, it will be understood that fitments 54A, 54B, and the related hardware may be inelastically bent (by hand or formed into a convenient shape) to fit about a vehicle frame member (shown for example as in
Additionally, as is noted in exemplary
Returning now to
Referring now additionally to
As will be further understood, fitment bracket 310 may be secured to bracket 55 using threaded bolts 56, 56 with corresponding vibration resistant spring lock washer members 57, 57 to fixably secure fitment bracket 310, and horn cover 300A, and therefore horn system 40 together in a unitary body.
As will be further understood from review, bracket 55 may be additionally secured to an optional vehicle mounting bracket 102A (
It will be understood that the compressor assembly and compressor member may be understood interchangeably as the compressor assembly 20 generates compressed air for delivery to a horn assembly or acoustic sound wave generator system 40, there is an additional enhanced benefit from the present invention. In the proposed invention, air hose 21 with or without a protective cover extends directly from air output 20A of compressor 20 to compact housing 42 via a rear-access portal 43 (see
Additionally referring now to
Mounting bracket 400 is monolithically formed and further includes a first middle cradle 403A and a second middle cradle 403B and and a first end stop 404A and a second opposed end stop 404B. Extending arms 405 extend from at least one of the first and the second middle cradles 403A, 403B. A mid-channel 406 extends from front surface 402 for engaging with a flexible fixing member 407 (see
Referring additional now to
Applicant's experiments have noted that without in-flow-restrictions, a continuous air communication pressure of approximately 6-20 psi (pounds per square inch), and preferably 8-12 psi+/−0.5 psi, may be supplied to compact housing 42 for sound generation. It will be understood that a successful distance, after experimentation, of maintaining the pressure exceeds eight (8) feet. As a result, one of the benefits of the present invention may be easily recognized, namely; positioning of compressor assembly 20 in a dry and secure remote location with a robust connection to avoid vibratory, moisture, or physical damage, and positioning horn system 40 in a convenient sound and moisture resistant location. In this manner the present invention provides a substantial improvement over the prior art. Alternatively, for example, in
It will be additionally understood that air hose 21 has no mid-pathway interference, and therefore is capable of maintaining instantaneous communication between compressor assembly 20 and horn assembly 30 so that there is no delay when a horn-note is triggered. However, if there is a protuberance or other interference in air hose 21, it is clear that there is a delay in horn-note triggering. Depending upon the distance between each member, such delays may be significant and even dangerous for safety reasons. As a result, it will be understood that a continuous air-communication from compressor 20 to the monolithic horn assembly 30 is essential for operative performance of the present invention.
As a result, it will be understood that those of skill in the art will understand the adaptive arrangements and configurations for secure fitment that are amenable based upon the present adaptive electropneumatic horn system.
Having described at least one of the preferred embodiments of the present invention with reference to the accompanying drawings, it will be apparent to those skills that the invention is not limited to those precise embodiments, and that various modifications and variations can be made in the presently disclosed system without departing from the scope or spirit of the invention. Thus, it is intended that the present disclosure cover modifications and variations of this disclosure provided they come within the scope of the appended claims and their equivalents.
This application relates to, and claims priority from, U.S. Ser. No. 62/450,803 filed Jan. 26, 2017, the entire contents of which are incorporated herein by reference.
Filing Document | Filing Date | Country | Kind |
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PCT/US2018/015130 | 1/25/2018 | WO | 00 |
Number | Date | Country | |
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62450803 | Jan 2017 | US |