JP3164189U - Whistle with finger grip - Google Patents

Abstract

A whistle that provides a preselected pulsating sound and has an elastically biased finger grip. A whistle that produces a resonant frequency includes a mouthpiece having an inlet and a body having at least two acoustic chambers through which inlet air is blown. The whistle further includes an air passage for communicating the inlet air from the inlet 114 to the resonance chamber and the acoustic chamber. The main body further includes at least two discharge ports 160 for discharging air and sound through the acoustic chamber. The two acoustic chambers are dimensioned to produce a peak main frequency that interacts to produce a pulsating sound having a periodic pulse frequency below 100 Hertz. The whistle preferably comprises an air intake port for passing additional port air to the resonance chamber. [Selection] Figure 1

Description

  This application is based on US Design Application No. 29 / 357,139 filed by Ron Foxcroft under the name of a whistle with a finger grip dated March 8, 2010, and dated August 6, 2010 by Ron Foxcroft. Claim priority from US Provisional Application No. 61 / 371,227, filed under the name of a whistle with a finger grip.

  The present invention relates to a whistle, and more particularly to a whistle that provides a preselected pulsating sound and has an elastically biased finger grip.

  Whistle is used for a number of purposes ranging from the use of referee competition events to emergency use to draw attention. The required characteristics of the whistle depend on the intended use. For example, a professional referee needs a whistle that reacts to make sure that the referee can make a loud noise to control the game despite the crowd noise. In some situations, such as emergency situations, it is desirable to have a whistle that makes a very loud and deafening sound that draws the attention of a nearby person who can provide assistance.

  In competition events, referees use a certain whistle that produces a certain sound. In many cases, the whistle that is to be used by the referee comes from historical circumstances. The use of a specific type of whistle that produces a constant sound is often well known by both players and audiences such as games.

  Historically, many of these whistles are pea whistle, which means a whistle with a rotating ball in an acoustic chamber or a resonating chamber. More recently, however, there has been a shift to the use of peer-less whistles, which does not include the use of rotating balls or peas in the resonance chamber and / or the sound chamber. The benefits of a pealess whistle are described in a number of prior art documents, including US Pat. No. 5,816,816 and US Pat. No. 4,821,670.

  Despite the advantages of the pealess whistle design currently on the market in many cases, it is unacceptable in certain sports fields due to the difference in sound produced by the pealess whistle and the conventional pea-style whistle. Judges of competition events and participants and spectators are accustomed to certain sounds that are widely accepted in the sports field, and whistles that produce specific sounds are preferred even if the technology of the whistle itself is suboptimal A whistle.

  Therefore, there is a need for a whistle that mimics the sound of a pea whistle as closely as possible using a pealess design by creating a whistle that can mimic the sound of a specific pea whistle that does not have the disadvantages associated with a pea design.

  In addition, referees require a comfortable whistle to hold with their fingers and reliably make a certain sound.

  U.S. Pat. No. 6,837,177 discusses the possibility of making a two-chamber whistle with different resonant frequencies. In particular, a first chamber having a resonant frequency of 3.4 kilohertz and a second resonant chamber having a resonant frequency of 3.7 kilohertz are determined. This creates a beat frequency of about 300 Hertz. U.S. Pat. No. 6,837,177 teaches that if the beat frequency is 100 hertz or less, the beat can be neglected, and as a result, the sound is monotonous. That is, US Pat. No. 6,837,177 teaches beat frequencies of 100 hertz or higher. US Pat. No. 4,709,651 also discusses the possibility of having a whistle with two acoustic chambers that produce different resonant frequencies. In fact, US Pat. No. 4,709,651 teaches that the resonant frequency of the two chambers that make up the sound is prepared to produce a relatively high and low frequency. In a preferred preparation, the whistle, or the two chambers that produce the sound, is such that it substantially covers the high and low limits of human hearing. They give examples of the frequency range of whistle from 2 kHz to 8 kHz. This patent again teaches a very wide difference in frequency between the two chambers that make the sound, ie, on the order of 6 kilohertz.

  U.S. Pat. No. 5,816,186 also illustrates the concept of providing a whistle that produces a beat through the provision of two resonant frequencies derived from two separate acoustic resonance chambers. The present invention does not quantify or discuss the ability to mimic the sound of a pea whistle using a constant beat frequency selection method and / or a pealess design.

  In summary, current technology teaches the possibility of having two sound resonance chamber pealess whistles that produce a constant beat frequency of typically 100 hertz and / or higher to provide a specific beat. .

  The inventive whistle is what makes the pulse rather than the beat, and the inventor found that it was actually the pulse needed to mimic the sound of an existing pealess whistle design, I found that it was not a beat. It has also been found that the introduction of an additional air intake port helps to mimic the sound of a pea-type whistle in a pealess design.

The whistle will now be described by way of example with reference to the accompanying drawings.
It is a schematic front perspective view of a whistle. It is a front bottom schematic perspective view of a whistle. It is a right view of a whistle. It is a left view of a whistle. It is a top view of a whistle. It is a front view of a whistle. It is a bottom view of a whistle. It is a rear view of a whistle. It is a partial front view of a whistle. FIG. 10 is a schematic cross-sectional view of the whistle along line AA in FIG. 9. It is a partial schematic front view of a whistle. It is a schematic cross-sectional view of the whistle along the BB line of FIG. It is a partially cutaway schematic side view of a whistle showing a hard plastic member and a rubber overlay. It is a side elevational view of a whistle showing only the rubber overlay portion of the whistle. FIG. 6 is a schematic side sectional view of a whistle showing a small finger housed in a finger grip sleeve of a finger grip showing a V-spring in a normal position. FIG. 6 is a schematic side sectional view of a large finger in a finger sleeve of a finger grip with a V-spring shown in an extended position. FIG. 6 is a top schematic front perspective view of another embodiment, ie, whistle 500. FIG. 20 is a schematic cross-sectional view of whistle 500 taken along line AA in FIG. 19. FIG. 6 is a schematic partial front view of another embodiment, a whistle 500. It is a graph with sound decibels on the Y axis and frequency on the X axis, and shows two frequency charts in which the whistle design of the present invention is superimposed on another typical ball whistle to be compared. It is the chart which took the decibel for the Y-axis about the typical ball whistle, and took the frequency for the X-axis. FIG. 21 shows the periodic pulse frequency of the typical ball whistle plotted in FIG. 21 with amplitude along the Y axis and time along the X axis. A frequency fingerprint of a whistle made in accordance with the design of the present invention with a decibel on the Y axis and a frequency on the X axis is shown. FIG. 23 shows the periodic pulse frequency of the design of the present invention plotted in FIG. 23 with amplitude on the Y axis and time on the X axis. A schematic chart is shown in which a typical ball whistle and a whistle of the present invention are superimposed, with the decibel level on the Y axis and the frequency on the X axis.

  The whistle of the device of the present invention, generally designated 100 in FIG. 1, comprises a body 110 having a mouthpiece 112 that defines the following major members: an inlet 114. The whistle 100 further comprises a finger grip 116 that consists of a finger sleeve 118 and also includes a V-spring 130.

  Whistle 100 may be oriented with respect to horizontal surface 122 and vertical surface 120, as shown in FIG.

  The whistle 100 further includes a right discharge port 160, a left discharge port 162, a right side 136, a left side 138, an upper surface 140, a bottom 142, a front portion 144 and a rear portion 146, a central portion 132, and an outer surface 151.

  Referring now to FIG. 10, it shows the whistle in cross section along line AA in FIG. 9 and includes the following inlet 114 that is divided into a right air passage 150 and a left air passage 152 by an air divider 154. . Passages 150 and 152 terminate at the right air orifice 156 and the left air orifice 158, respectively, and direct air into the resonant chamber 103. Air typically blown through the mouth and through the inlet 114 exits through the right air orifice 156 and the left air orifice 158 into the resonance chamber 103, hits the end 161, and enters the right acoustic chamber 164 and the left acoustic chamber. It interacts with the chamber 166 and exits through the right exhaust port 160 and the left exhaust port 162 defined in part by the right deflector 168 and the left deflector 170.

  Referring now to FIG. 12, which is a cross-sectional view along line BB of FIG. 11, the rigid plastic member of the whistle 100 is shown as the body core of FIG.

  In the molding process, the hard plastic member is typically molded and assembled to mold the body core 180, and then a rubber overlay, indicated at 182 in FIG. 14, is molded onto the hard plastic body core 180.

  FIG. 14 shows the rubber overlay 182 portion of the whistle 100, while FIG. 13 shows the rigid plastic body core 180 with the rubber overlay 182. The reader will notice that the finger grip 116 is mostly made of rubber overlay material 182. The interior 119 of the finger sleeve 118 is made entirely of an elastic material, which is preferably an elastic rubber overlay 182, as is the V-spring 130.

  FIGS. 15 and 16 schematically show a small finger 194 and a large finger 196 inserted into a finger sleeve 118 of the finger grip 116. In FIG. 15, a small finger 194 is shown in the finger sleeve 118, where the V-spring 130 is in the normal position 190. The V-spring 130 at the normal position 190 may be slightly expanded so as to be elastically biased with respect to the outside of the finger 194 as shown in FIG.

  FIG. 16 shows a large finger 196 in the finger sleeve 118 with the V-spring 130 in the expanded position 192. In the expanded position 192, the finger sleeve 118 can accommodate a larger finger as shown by the large finger 196 in FIG. 16 and continues to be elastically biased against the exterior of the large finger 196.

  FIGS. 17, 18 and 19 show another embodiment, a whistle 500 that includes substantially the same members as the whistle 100 and adds a right intake port 502 and a right intake port 504. The right intake port 502 and the left intake port 504 allow air to enter from an inlet different from the inlet air inlet 501. Port air is inhaled more naturally than it is blown using the inlet air inlet 501. Port air is drawn into the right intake port 502 and the left intake port 504 via a venturi or siphon phenomenon caused by placing the air orifices 512 and 514 in the immediate vicinity of the right air hole 510 and the left air hole 511. The right air hole 510 and the left air hole 511 exit at the right deflector 506 and the left deflector 508 close to the right air orifice 512 and the left air orifice 514 leading to the right acoustic chamber 520 and the left acoustic chamber 522.

  The inlet 501 is divided into a right air passage 550 and a left air passage 552 and discharges the inlet air to the resonance chamber 503. The passages 550 and 552 exhaust the inlet air to the resonance chamber 503 at the air orifices 512 and 514. It has been found that the use of the right intake port 502 and the left intake port actually creates a diverging sound from the whistle 500 that closely mimics the sound of a typical pea whistle. In practice, the air holes 510 and 511 are preferably oriented between the orifice and the outer surface 551. That is, the air holes 510 and 511 are closer to the outer surface than the air orifice. The resonant chamber includes deflectors 506 and 508 for deflecting sound forwardly, and air orifices 512 and 514 and air holes 510 and 511 are preferably located along the deflector.

  Reference is now made to FIGS. 20-25 which broadly show charts with decibel volume on the Y axis and frequency and / or time on the X axis. FIG. 20 shows the sound profile of a typical ball whistle 300 and the inventive whistle 100.

  Although the whistle 100 of the present invention appears to have a single peak in FIG. 20, in practice, when a measuring device with a finer resolution is used, the peak occurring at about 2250 Hz is actually as shown in FIG. And a twin peak with a peak at 2216 Hertz and another peak at 2287 Hertz.

  These frequency peaks, the peak at 2216 Hertz indicated at 320 and the peak at 2287 Hertz indicated at 322, produce a periodic pulse frequency of 71 Hertz. The peak main frequency of 2216 Hertz corresponds to one acoustic chamber of whistle 100, and the peak main frequency of 2287 Hertz corresponds to the other acoustic chamber. The difference in peak dominant frequency causes interference of these two frequencies that resonate from the two acoustic chambers, which is preferably 10-100 Hertz to provide a pulsating sound that mimics a typical Pea whistle. Causes periodic pulse frequencies in the range of.

  Referring to FIG. 21, it shows decibels on the Y-axis and frequency on the X-axis of a typical ball whistle, and FIG. 22 shows the corresponding periodic period WB, indicated at 350. WB indicated by 350 in FIG. 22 is measured at 50 hertz (wb = 50 hertz), which is a measurement value obtained from a typical P-type whistle.

  FIG. 23 shows decibels on the Y axis and frequency on the X axis, and shows a peak frequency of about 2216 Hertz. However, as described in FIG. 25, the peaks are actually two twin peaks with peak frequencies of 2216 Hertz and 2287 Hertz. FIG. 24 shows the pulse period W for the whistle 100 of the present invention, which is measured at 71 hertz (W = 71 hertz), which has a periodic pulse frequency due to interference of the main frequencies of the two acoustic chambers. Is done.

  The reader will notice that there is another smaller peak to the right of the peak dominant frequency in FIG. 20, which is referred to as the harmonic peak frequency and / or simply the harmonic frequency that is hardly added to the sound heard from the whistle.

Claims (18)

a) a mouthpiece having an inlet, and a body including at least two acoustic chambers into which inlet air is blown from the inlet;
b) an air passage for communicating inlet air from the inlet to the resonance chamber and the acoustic chamber;
c) the body further comprises at least two exhaust ports for exhausting air and sound through the acoustic chamber;
d) the two acoustic chambers are dimensioned to produce a peak main frequency that interacts to produce a pulsating sound having a periodic pulse frequency lower than 100 Hertz;
A whistle for creating a resonant frequency.   The whistle of claim 1, wherein the body further comprises an air intake port for communicating additional port air to the resonance chamber.   The whistle of claim 2, wherein the air intake port draws port air independently of inlet air.   The whistle according to claim 2, wherein the air intake port draws port air independently of the air passage.   The body further comprises an air intake port for passing additional port air to the resonance chamber, wherein the port air is drawn into the intake port by siphoning from a flow adjacent to the inlet air. Item 2. The whistle according to Item 1.   The air passage discharges inlet air to the resonance chamber at the air orifice, and the air intake port discharges port air to the resonance chamber at the air hole, where the air hole is the air orifice. The whistle according to claim 2, which is located in the immediate vicinity.   The whistle according to claim 6, wherein the air hole is located between the air orifice and an outer surface of the whistle.   The whistle according to claim 6, wherein the acoustic chamber includes a deflector for forcibly deflecting sound, and the air orifice and the air hole are located along the deflector.   The whistle of claim 8, wherein the air holes are located immediately adjacent to the air orifice along the deflector.   The whistle of claim 8, wherein the air holes are located between an outer surface of the whistle and the air orifice along the deflector.   The whistle according to claim 1, wherein the two acoustic chambers are dimensioned to produce a peak main frequency that interacts to produce a pulsating sound having a periodic pulse frequency of 10 to 100 Hertz.   12. A whistle according to claim 11, wherein the two acoustic chambers make a difference in peak main frequency of 10-100 hertz and the main frequency is selected between 2000-2400 hertz. a) a main body having a mouthpiece having an inlet and at least two acoustic chambers into which inlet air is blown from the inlet;
b) an air passage for communicating inlet air from the inlet to the acoustic chamber;
c) the body further comprises at least two exhaust ports for exhausting air and sound through the acoustic chamber;
d) A whistle for creating a resonant frequency comprising a finger grip with an expandable portion that is integrally connected to the body, receives at least one finger therein, and is elastically biased to grasp the finger.   The whistle of claim 13, wherein the finger grip comprises an adjacent finger sleeve.   The whistle of claim 14, wherein the adjacent finger sleeves accommodate a finger size change and comprise a V-shaped expansion spring for grasping the fingers.   The whistle according to claim 15, wherein the V-shaped expansion spring is movable between a normal position and an expanded position to fit a finger size.   The whistle according to claim 15, wherein the V-shaped expansion spring is made of an elastic material.   The whistle of claim 14, wherein the interior of the adjacent finger sleeve is made of an elastic material.