JP2014092709A - Whistle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the deterioration of sound while the movement of a rolling element is smooth even when saliva is attached to the rolling element or a resonance chamber part.SOLUTION: A rolling element 2 is structured to be a cylindrical shape closed at its one end or the cylindrical shape opened at its other end or a rod-like shape, whereas peripheral edge thrust away parts 11;12 and end side thrust away parts 13;14 for reducing the contact area of the rolling element 2 to an inside empty chamber part 9 are provided in the rolling element 2. After the rolling element 2 is stored in the inside empty chamber part 9 of a whistle main body part 3, a whistle part 4 is placed over the whistle main body 3, and by integrating the whistle main body 3 and the whistle case part 4 by adhesion or deposition, the whistle 1 is structured to be in a shape having the rolling element 2, a mouthpiece part 5, a resonance chamber part 6, and an outlet part 7. Even when the peripheral edge side thrust away parts 11;12 and the end side thrust away parts 13;14 are provided on an inner peripheral surface of the inside empty chamber part 9, embodiment can be pursued.

Description

  The present invention relates to a whistle having rolling elements in an internal space of a resonance chamber.

  FIG. 15 shows the whistle disclosed in Patent Document 1. In FIG. 15, a whistle 41 is circularly introduced into the internal vacant part 43 from a mouthpiece part 45 where a rolling element 44 accommodated in a cylindrical internal vacant part 43 of the resonance chamber part 42 is applied to a person's mouth. On the other hand, a part of the air is blown out from the air outlet portion 46 provided between the resonance chamber portion 42 and the mouthpiece portion 45 from the inner empty chamber portion 43 to the outside. However, even if the rolling element 44 has a cylindrical shape, a rod shape, or a spherical shape, the movement of the rolling element 44 is deteriorated due to saliva or the like that has entered the internal vacant portion 43 of the resonance chamber portion, and sound deterioration occurs. There are drawbacks.

  The whistle rotor disclosed in Patent Document 2 corresponds to the rolling element 44 of FIG. 15, and has a shape in which a large number of semicircular disks are provided on a central bar so as to be spherical. The whistle ball of the whistle disclosed in Patent Document 3 corresponds to the rolling element 44 of FIG. 15, and has a plurality of protrusions provided on the outer peripheral surface of a solid sphere that is not hollowed inside. is there

  Therefore, even if a large number of semicircular disks described in Patent Document 2 or a large number of protrusions described in Patent Document 3 are applied to the rolling elements illustrated in FIG. 15, the balance with respect to the rotation of the rolling elements is poor. There is a drawback that the sound deteriorates.

Japanese Patent No. 3336183 Japanese Utility Model Publication No. 55-138694 Japanese Utility Model Publication No. 60-169698

  The present invention has been made in view of the above-described background art, and an object of the present invention is to provide smooth movement of a rolling element and prevention of sound deterioration even when saliva adheres to the rolling element or a resonance chamber.

  The present invention relates to a mouthpiece part to be applied to a human mouth, a resonance chamber part having a cylindrical inner vacant part for allowing air introduced from the mouthpiece part to flow in a circle, and an inner vacant part of the resonance chamber part. In a whistle having a rolling element that is housed and rotates with the flow of air, and a blowout port provided between the mouthpiece part and the resonance chamber part, the rolling element has a closed cylindrical shape or an open end The outer side protruding portion for reducing the contact area of the rolling element with respect to the inner vacant part is provided on the inner peripheral surface of the rolling element or the inner vacant part while being configured in a cylindrical shape or a rod shape. And

  According to the present invention, the rolling element is configured in a cylindrical shape with a closed end or a cylindrical shape or a bar shape with an open end, and a peripheral side protruding portion for reducing the contact area of the rolling element with respect to the internal vacant portion. Because the rolling element is provided on the inner peripheral surface of the rolling element or the inner vacant part, or the rolling element is formed in a cylindrical shape or a rod shape that is thicker than the central part at both ends, the movement of the rolling element is smooth and sound There is an effect that it is possible to prevent the deterioration of.

  In the present invention, the rolling element is connected with the outer peripheral surface of the rolling member and the outer peripheral surface of the peripheral protruding portion without rotating in a random posture in the inner vacant portion of the resonance chamber. If it is configured to rotate in such a manner that it faces the inner peripheral surface on the side of the internal vacant space, the rolling elements can move uniformly and the deterioration of sound can be prevented. Further, if the peripheral side protruding portion is formed in an annular shape, wear of the peripheral side protruding portion is reduced. Moreover, if a through-hole part or a recessed part is provided in a rolling element, a sound quality and a sound pressure level can be adjusted. Further, if the end-side protruding portion for reducing the contact area of the rolling element with the end face of the internal vacant part is provided on the end face of the rolling element or the internal vacant part, the movement of the rolling element becomes smoother. Further, the end-side protruding portion is configured to be convex and concave on the protruding tip side of the end-side protruding portion and the side of the rolling element or the inner vacant portion, or the end-side protruding portion is the rolling element or the inside. If the convex shape is divided into a plurality of portions in the direction around the vacant chamber portion, the contact area of the end-side protruding portion with the resonance chamber portion is reduced, and the rolling element moves more smoothly.

The perspective view which decomposes | disassembles and shows the whistle which concerns on Embodiment 1. FIG. FIG. 3 is a perspective view showing an overview of a whistle according to the first embodiment. FIG. 100 is a sectional view taken along line 100-100 in FIG. 2. FIG. 101 is a sectional view taken along line 101-101 in FIG. 2. The perspective view which decomposes | disassembles and shows the whistle which concerns on Embodiment 2. FIG. The perspective view which decomposes | disassembles and shows the whistle which concerns on Embodiment 3. FIG. The perspective view which decomposes | disassembles and shows the whistle which concerns on Embodiment 4. FIG. The perspective view which decomposes | disassembles and shows the whistle which concerns on Embodiment 5. FIG. The perspective view which decomposes | disassembles and shows the whistle which concerns on Embodiment 6. FIG. The perspective view which decomposes | disassembles and shows the whistle which concerns on Embodiment 7. FIG. The perspective view which decomposes | disassembles and shows the whistle which concerns on Embodiment 8. FIG. The perspective view which decomposes | disassembles and shows the whistle which concerns on Embodiment 9. FIG. FIG. 61 is a cross-sectional view corresponding to a cross-sectional view taken along line 101-101 according to the tenth embodiment. The perspective view which decomposes | disassembles and shows the whistle which concerns on Embodiment 11. FIG. Sectional drawing which shows the inside of the conventional whistle.

  In FIG. 1 to FIG. 14, parts having the same function are denoted by the same reference numerals. With reference to FIG. 1 thru | or FIG. 4, the whistle 1 which concerns on Embodiment 1 is demonstrated. As shown in FIG. 1, the whistle 1 includes a whistle case portion 4 that covers the whistle body portion 3 after the rolling element 2 is accommodated in the internal empty space portion 9 of the whistle body portion 3, and the whistle body portion 3 and the whistle. The case portion 4 is integrated with the rolling element 2, the mouthpiece portion 5, the resonance chamber portion 6, and the air outlet portion 7.

  The mouthpiece part 5 is a part to be applied to the mouth of a person not shown. Inside the mouthpiece 5, an air guide passage 8 is provided so as to guide the air blown out from a person's mouth toward the resonance chamber 6. Inside the resonance chamber 6, an internal vacant chamber 9 is provided in a cylindrical shape that allows the air introduced from the mouthpiece 5 to flow in a circular shape. The rolling element 2 is accommodated in the internal vacant part 9 of the resonance chamber 6 so as to rotate as the air flows in the internal vacant part 9. The blowout part 7 is provided between the mouthpiece part 5 and the resonance chamber part 6 so that a part of air is blown out from the internal empty room part 9 to the outside.

  As the material of the rolling element 2, synthetic resin, natural resin, synthetic rubber, natural rubber, organic material, or inorganic material can be used. The organic material is woven fabric, wood, leather, paper or the like. Inorganic materials are stone, metal, ceramics, glass and the like. Further, when the rolling element 2 is made of a synthetic resin, a soft synthetic resin such as polyethylene, a hard synthetic resin such as polypropylene, and a foamed synthetic resin can be considered. There is no unpleasant vibration, the wear of the rolling element 2 is small, and the durability is high.

  The rolling element 2 has a cylindrical shape with a closed end, a cylindrical shape with an open end, or a rod shape. FIG. 1 illustrates the case where the rolling element 2 has a cylindrical shape with an open end. Further, the peripheral side projecting portions 11 and 12 for reducing the contact area of the rolling element 2 with the inner vacant portion 9 are provided on the inner peripheral surface of the rolling member 2 or the inner vacant portion 9, but FIG. Then, the case where the peripheral side protruding portions 11 and 12 are provided on the rolling element 2 is illustrated. Furthermore, the end side protruding portions 13 and 14 for reducing the contact area of the rolling element 2 with the inner vacant portion 9 are provided on the end face of the rolling member 2 or the inner vacant portion 9, but in FIG. The case where the side protrusion 13; 14 was provided in the both end surfaces of the rolling element 2 was illustrated.

  In the case where the rolling element 2 is configured as a cylindrical shape with closed ends or a cylindrical shape with open ends, the cylindrical space portion penetrates the both ends of the round bar inside the round bar, and the inner and outer concentric circular shapes are formed. Constructs a cylindrical shape. The inner and outer concentric circles are concentric circles in which the circular outer peripheral surface of the round bar and the inner peripheral surface on the cylindrical space portion side are located at the same center with the centers extending toward both ends of the circle. Thus, if the rolling element 2 is an inner and outer concentric circular cylindrical shape, the thickness between the inner peripheral surface and outer peripheral surface of the rolling element 2 will become uniform, and the rolling element 2 will rotate smoothly with good balance. Both ends of the rolling element 2 are positioned in the direction in which the center of the internal vacant portion 9 extends.

  The circumferential side protruding portions 11; 12 are provided so as to protrude outward from the both ends of the rolling element 2 in the direction intersecting the both ends. The thickness and the protruding dimension of the peripheral side protruding portions 11; 12 are the same on both ends. Therefore, the balance with respect to rotation of the rolling element 2 is good, and rotation of the rolling element 2 is stabilized. Moreover, since the peripheral side protruding part 11; 12 is configured in an annular shape surrounding the rolling element 2, the peripheral side protruding part 11; 12 does not become a resistance when the rolling element 2 rotates.

  The end-side protruding portions 13; 14 are provided so as to protrude from both ends of the rolling element 2 or the peripheral-side protruding portions 11; 12 to the outside in the direction of both ends of the rolling element 2. The end-side protruding portions 13; 14 have an annular shape with the same diameter, and the thickness and protruding dimensions of the end-side protruding portions 13; 14 are the same on both ends. Therefore, the balance with respect to rotation of the rolling element 2 is good, and rotation of the rolling element 2 is stabilized.

  Further, the end-side protruding portion 13; 14 is configured to be convex and concave on the protruding tip side of the end-side protruding portion 13; 14 and the rolling element 2 side, so that the end-side protruding portion 13; Compared with the case where the ring is not formed, the contact area with the resonance chamber 6 is reduced, and the rotation of the rolling element 2 becomes smooth. In particular, since the convex tip is configured in an arc shape, the contact area to the resonance chamber 6 is further reduced as compared with the case where the convex tip is configured in a flat shape, and the rolling element 2 rotates. It becomes smoother. As a result of the experiment, when six convex shapes were arranged at equal intervals in the peripheral direction, the balance between stability and resistance was good.

  On the other hand, the whistle main body part 3 includes a part corresponding to one of the mouthpiece part 5, the resonance chamber part 6, and the air outlet part 7, and has a box shape in which one end side of the part corresponding to each one is opened. A concave or convex opening-side fitting portion 15 is provided at the opening end, and a concave or convex peripheral-side fitting portion 16 is provided outside the resonance chamber portion 6. The whistle case portion 4 is a plate-like shape having portions corresponding to the other of the mouthpiece portion 5, the resonance chamber portion 6, and the air outlet portion 7, and has a convex or concave opening side fitting portion 17. The protrusion part 18 and the convex or concave peripheral edge side fitting part 19 are provided. As materials for the whistle body 3 and the whistle case 4, synthetic resin, natural resin, synthetic rubber, natural rubber, organic material, and inorganic material can be used. The organic material is wood, paper or the like. Inorganic materials are stone, metal, ceramics, glass and the like.

  And when the whistle 1 is assembled, the rolling element 2 is arranged so that the outer peripheral surface 20 of the rolling element 2 and the outer peripheral surface 21; 22 of the peripheral side protruding portion 11; 12 face the inner peripheral surface of the internal empty portion 9. It is accommodated in the internal vacant part 9. Thereafter, the opening side fitting part 15 of the whistle body part 3 and the opening side fitting part 17 of the whistle case part 4 are fitted together, and the peripheral side fitting part 16 of the whistle body part 3 and the peripheral side of the whistle case part 4 The fitting part 19 is fitted to each other, and the whistle body part 3 and the whistle case part 4 are integrated by adhesion or welding.

  As a result, the opening on one end side of the whistle body part 3 is closed by the whistle case part 4, and a part of the peripheral side fitting part 19 of the whistle case part 4 is connected to the peripheral side fitting part 16 of the whistle body part 3. The string connecting portion is arranged between the projection portion 18 of the whistle case portion 4 in a shape thinner than those, and the whistle 1 is configured as shown in FIG.

  In FIG. 3, the mouthpiece part 5 is applied to the mouth of a person (not shown), and the air from the person's mouth passes through the air guide passage 8 and the internal vacant part 9 of the resonance chamber part 6 as indicated by an arrow X. When the air is blown into the air, the blown air flows so as to draw a circle along the inner peripheral surface of the internal vacant portion 9, and the rolling element 2 is caused to flow along the inner peripheral surface of the internal vacant portion 9 by the air flowing in a circular shape. Rotate along the surface. In that case, the outer peripheral surface 20 of the rolling element 2 is separated without contacting the inner peripheral surface of the internal vacant portion 9, and the diameter of the peripheral protruding portion 11; 12 is smaller than the diameter of the internal vacant portion 9. , Only a part of the outer peripheral surface 21; 22 of the peripheral side protruding portion 11; 12 is in contact with the inner peripheral surface of the internal empty chamber portion 9, and even if saliva adheres to the rolling element 2 or the resonance chamber portion 6, The rolling element 2 rotates smoothly and deterioration of sound can be prevented.

  With reference to FIG. 4, the dimension between the end side protrusion parts 13; 14 in the rolling element 2 is demonstrated. The dimension L1 between the end-side protruding portions 13; 14 is linearly moved in the direction in which the center of the internal vacant portion 9 extends with respect to the dimension L2 in the direction in which the center of the internal vacant portion 9 extends. Although it is possible, the rolling element 2 does not rotate in such a posture that the outer peripheral surfaces 21; 22 of the peripheral side protruding portions 11; 12 are directed to both end surfaces located in the direction in which the center of the inner vacant portion 9 extends. Set to Thereby, the outer peripheral surface 20 of the rolling element 2 and the outer peripheral surface 21; 22 of the peripheral protruding portion 11; 12 are connected to the inner vacant space without the rolling element 2 rotating in a random posture inside the inner vacant portion 9. It is the form comprised by the magnitude | size rotated by the artificial attitude | position which always faces the internal peripheral surface of the part 9. FIG.

  Thereby, when the rolling element 2 rotates along the inner peripheral surface of the internal vacant part 9 by the air flowing in a circular shape along the inner peripheral surface of the internal vacant part 9, both end surfaces of the rolling element 2 are internal. The outer peripheral surface 20 of the rolling element 2 and the outer peripheral surface 21; 22 of the peripheral side protruding portion 11; 12 do not face the inner peripheral surface on the vacant chamber 9 side, and the inner peripheral surface of the inner vacant chamber 9. Rotate in a maneuverable posture that always faces the sound, and a certain sound quality and sound pressure level can be obtained.

  Note that the dimension L1 between the end-side protruding portions 13; 14 in FIG. 4 is the case where the rolling element 2 includes the end-side protruding portions 13; 14, and the rolling elements 2 have the end-side protruding portions 13; If not provided, the embodiment can be implemented by replacing the dimension L3 between the end-side protruding portions 13; 14 with the dimension L1 on both ends of the rolling element 2.

  With reference to FIG. 5, the whistle 1 which concerns on Embodiment 2 is demonstrated. In this whistle 1, after the rolling element 2 is accommodated in the whistle main body part 3, the whistle case part 4 is put on the whistle main body part 3, and the whistle main body part 3 and the whistle case part 4 are integrated. The mouthpiece portion 5, the resonance chamber portion 6, the rolling elements 2, and the air outlet portion 7 are configured. Since the end side protruding portion 13; 14 provided in the rolling element 2 according to the second embodiment is formed in an annular shape that is not uneven, wear of the end side protruding portion 13; 14 is reduced.

  With reference to FIG. 6, the whistle 1 which concerns on Embodiment 3 is demonstrated. In this whistle 1, after the rolling element 2 is accommodated in the whistle main body part 3, the whistle case part 4 is put on the whistle main body part 3, and the whistle main body part 3 and the whistle case part 4 are integrated. The mouthpiece portion 5, the resonance chamber portion 6, the rolling elements 2, and the air outlet portion 7 are configured. The rolling element 2 according to the third embodiment is configured in a convex shape in which the end side protruding portions 13 and 14 are divided into a plurality of parts on the side surrounding the rolling element 2.

  Moreover, since the through-hole part 23 was provided in the rolling element 2, the rolling element 2 becomes lightweight, and sound quality and a sound pressure level can be adjusted. The through-hole portion 23 has a shape that penetrates the rolling element 2 in and out, and can be implemented in any shape such as a slit shape, an opening shape, a round hole shape, and a square hole shape. Even if the number of the through-hole portions 23 is one, the number of the through-hole portions 23 can be applied. The through hole 23 can be implemented even if it is provided in the rolling elements 2 shown in FIGS. 1, 5, 7, 8, 10, 11, and 12.

  Although not shown in the drawings, the rolling element 2 is formed with a recessed portion replaced with the through-hole portion 23 regardless of whether the rolling element 2 is a closed cylinder, an open cylinder or a rod. Implementation is possible even if the moving body 2 is light. The concave portion has a shape that is recessed from the outer peripheral surface of the rolling element 2 and can be implemented in any shape such as a groove shape, a round shape, and a square shape. Even if the number of the recesses is one, it is possible to apply, but if there are a plurality of recesses arranged at equal intervals in the peripheral direction of the rolling element 2, the balance between stability and resistance is good.

  With reference to FIG. 7, the whistle 1 which concerns on Embodiment 4 is demonstrated. In this whistle 1, after the rolling element 2 is accommodated in the whistle main body part 3, the whistle case part 4 is put on the whistle main body part 3, and the whistle main body part 3 and the whistle case part 4 are integrated. The mouthpiece part 5, the resonance chamber part 6, the air outlet part 7, and the rolling element 2 are configured.

  The rolling element 2 according to the fourth embodiment and the end-side protruding portions 13; 14 provided on the rolling element 2 have a rectangular cylindrical shape with both ends opened. This quadrangular cylindrical shape penetrates a square columnar space inside the square rod at both ends of the rod, thereby forming an inner and outer concentric rectangular cylindrical shape. The inner and outer concentric quadrangles are concentric quadrangles in which the square outer peripheral surface of a square bar and the inner peripheral surface on the side of the quadrangular columnar space are located at the same center with the centers extending toward both ends of the quadrilateral. Thus, if the rolling element 2 and the end side protruding part 13; 14 are cylindrical shapes of inner and outer concentric squares, the thickness between the inner peripheral surface and the outer peripheral surface of the rolling element 2 and the end side protruding part 13; 14 is It becomes uniform and the rolling element 2 rotates smoothly with good balance.

  With reference to FIG. 8, the whistle 1 which concerns on Embodiment 5 is demonstrated. In the whistle 1, after the rolling element 2 is accommodated in the whistle main body 3, the whistle case 4 is put on the whistle main body 3, and the whistle main body 3 and the whistle case 4 are integrated by bonding or welding. Thus, the mouthpiece portion 5, the resonance chamber portion 6, the air outlet portion 7, and the rolling element 2 are configured.

  The rolling element 2 according to the fifth embodiment and the end-side projecting portions 13; 14 provided on the rolling element 2 have a polygonal cylindrical shape with both ends opened. This polygonal cylindrical shape penetrates the polygonal column space inside the polygonal rod at both ends of the rod, thereby forming an inner and outer concentric polygonal cylindrical shape. The inner and outer concentric polygons are concentric polygons in which the polygonal outer peripheral surface of a polygonal bar and the inner peripheral surface on the side of the polygonal column space are located at the same center with the centers extending toward both ends of the polygon. . Thus, if the rolling element 2 and the end side protruding part 13; 14 are cylindrical shapes of inner and outer concentric polygons, the thickness between the inner peripheral surface and the outer peripheral surface of the rolling element 2 and the end side protruding part 13; 14. Becomes uniform, and the rolling element 2 rotates smoothly with good balance.

  With reference to FIG. 9, the whistle 1 which concerns on Embodiment 6 is demonstrated. In this whistle 1, after the rolling element 2 is accommodated in the whistle main body part 3, the whistle case part 4 is put on the whistle main body part 3, and the whistle main body part 3 and the whistle case part 4 are integrated. The mouthpiece portion 5, the resonance chamber portion 6, the rolling elements 2, and the air outlet portion 7 are configured. While the rolling element 2 which concerns on Embodiment 6 is comprised by rod shape, the recessed part 24 is provided in the rolling element 2, and it is the shaping | molding by which the end side protrusion part 13; 14 was provided in the peripheral side protrusion part 11; 12. .

  With reference to FIG. 10, the whistle 1 which concerns on Embodiment 7 is demonstrated. In this whistle 1, after the rolling element 2 is accommodated in the whistle main body part 3, the whistle case part 4 is put on the whistle main body part 3, and the whistle main body part 3 and the whistle case part 4 are integrated. The mouthpiece part 5, the resonance chamber part 6, the air outlet part 7, and the rolling element 2 are configured.

  The rolling element 2 according to the seventh embodiment has a shape in which both ends are formed in a cylindrical shape or a rod shape that is thinner than the center portion. In order to prevent the rolling element 2 from touching the resonance chamber 6, the thickest part of the rolling element 2 is thinner than the outer shape of the peripheral protruding portion 11; 12. Although the structure in which the end-side protruding portion is not provided is illustrated, the embodiment can be implemented even if the end-side protruding portion is provided.

  With reference to FIG. 11, the whistle 1 which concerns on Embodiment 8 is demonstrated. In this whistle 1, after the rolling element 2 is accommodated in the whistle main body part 3, the whistle case part 4 is put on the whistle main body part 3, and the whistle main body part 3 and the whistle case part 4 are integrated. The mouthpiece part 5, the resonance chamber part 6, the air outlet part 7, and the rolling element 2 are configured.

  The rolling element 2 according to the eighth embodiment has a shape in which both ends are formed in a cylindrical shape or a rod shape that is thicker than the center portion. Therefore, the thickest ends of the rolling element 2 are annular and correspond to the circumferentially protruding portions 11; 12 in FIG. 1, and a part of the thickest ends of the rolling element 2 comes into contact with the resonance chamber 6 during rotation. ing.

  With reference to FIG. 12, the whistle 1 which concerns on Embodiment 9 is demonstrated. In this whistle 1, after the rolling element 2 is accommodated in the whistle main body part 3, the whistle case part 4 is put on the whistle main body part 3, and the whistle main body part 3 and the whistle case part 4 are integrated. The mouthpiece part 5, the resonance chamber part 6, the air outlet part 7, and the rolling element 2 are configured. The rolling element 2 according to the ninth embodiment has a shape in which both ends are formed in a cylindrical shape or a rod shape that is thicker than the center portion. Therefore, the thickest ends of the rolling element 2 are annular and correspond to the circumferentially protruding portions 11; 12 in FIG. 1, and a part of the thickest ends of the rolling element 2 comes into contact with the resonance chamber 6 during rotation. ing.

  With reference to FIG. 13, the whistle 1 which concerns on Embodiment 10 is demonstrated. In this whistle 1, after the rolling element 2 is accommodated in the whistle main body part 3, the whistle case part 4 is put on the whistle main body part 3, and the whistle main body part 3 and the whistle case part 4 are integrated. The mouthpiece part 5, the resonance chamber part 6, a blowout part not shown, and the rolling element 2 are configured. Although the rolling element 2 which concerns on Embodiment 10 is provided with the peripheral side protrusion part 11; 12, it is the structure which is not provided with the end side protrusion part.

  Thus, when the rolling element 2 is not provided with the end side protrusion part, the end side protrusion part 13; 14 for reducing the contact area of the rolling element 2 with respect to the internal cavity part 9 is the inside empty part 9 of By providing at both end faces, the rolling element 2 can move smoothly, and sound deterioration can be prevented. The shape of the end-side protruding portion 13; 14 can also be implemented by forming the shape of the end-side protruding portion 13; 14 shown in each of FIGS. 1, 5, 6, 7, and 8. FIG. The rolling element 2 can also be implemented in a hollow cylindrical shape having an inner space portion 25 whose end is closed.

  With reference to FIG. 14, the whistle 1 which concerns on Embodiment 11 is demonstrated. The whistle 1 is formed in a shape in which the whistle body 3 divides the resonance chamber 6 into an upper resonance chamber 26 and a lower resonance chamber 27 in the vertical direction. The upper resonance chamber portion 26 is provided with an upper inner empty chamber portion 28, an upper opening side fitting portion 30, and an upper peripheral side protruding portion 32; 33. The upper peripheral side protruding portions 32; 33 are not provided in the portion of the blowout port portion 7, but are provided on the inner peripheral surface of the upper internal vacant space portion 28 on both sides. The lower resonance chamber 27 is provided with a lower internal empty chamber 29, a lower opening fitting portion 31, and a lower peripheral protruding portion 34; 35. The lower peripheral side protruding portions 34 and 35 are provided on the inner peripheral surface of the lower inner vacant chamber portion 29 so as to be positioned on both sides.

  Then, the lower portion of the upper resonance chamber portion 26 and the upper portion of the lower resonance chamber portion 27 are integrated with each other by bonding or welding to constitute the resonance chamber portion 6, and the upper inner vacancy portion 28 and the lower inner vacancy portion are formed. The chamber 29 constitutes the resonance chamber 9, the upper opening-side fitting portion 30 and the lower opening-side fitting portion 31 constitute the opening-side fitting portion 15, and the upper peripheral side protruding portions 32; 33 The lower peripheral protruding portion 34; 35 constitutes the peripheral protruding portion 11;

  In this way, after the rolling element 2 is accommodated in the whistle body 3 having the resonance chamber 6 composed of the lower part of the upper resonance chamber 26 and the lower resonance chamber 27, the whistle case 4 is moved to the whistle body 3. The whistle body 3 and the whistle case 4 are integrated to form a rolling element 2, a mouthpiece 5, a resonance chamber 6, and an outlet 7.

  Although the rolling element 2 according to the eleventh embodiment can be implemented by a cylindrical shape or a rod shape having a closed end, the rolling element 2 is configured in a cylindrical shape having an open end. The contact area of the rolling element 2 with respect to the internal vacant portion 9 is reduced without providing the end-side protruding portions 13; 14 on the end face.

  1 to 12, the combination of the rolling element 2 and the end-side protruding portion 13; 14 is, for example, a combination of the circular cylindrical rolling element 2 and the rectangular cylindrical end-side protruding portion 13; Alternatively, the present invention can also be implemented by various selections such as combining the annular cylindrical rolling element 2 with the annular end-side protruding portion 13; 14.

  In addition, the cylindrical shape of the rolling element 2 is a shape that penetrates a cylindrical space part at both ends of a rod inside a polygonal rod that is a triangle, a quadrangle, or a pentagon, or a triangle, a quadrangle, or a pentagon or more inside a round bar. The present invention can be implemented in a shape that penetrates the polygonal column-shaped space portion at both ends of the rod or a hollow shape having the inner space portion 25 that is closed at both ends. Moreover, even if the rolling element 2 has a rod shape that is not hollowed inside, the application is possible.

  When the rolling element 2 is rod-shaped, if it is made of foamed synthetic resin, the weight is reduced. In that case, the peripheral side protruding part 11; 12 and the end side protruding part 13; 14, the peripheral side protruding part 11; 12 or the end side protruding part 13; 14 are made of foamed synthetic resin and can be applied.

  10 to 12, since the end-side protruding portions 13; 14 shown in FIGS. 1 and 5 to 9 are provided, the dimensions of both ends of the rolling element 2 are such that the rolling element 2 is an internal space. The outer peripheral surface 20 of the rolling element 2 and the outer peripheral surface 21; 22 of the peripheral side protruding portion 11; 12 face the inner peripheral surface of the inner vacant portion 9 without rotating in a random posture at the portion 9. It is the form comprised by the magnitude | size which rotates with an attitude | position. Implementation is possible even if the end side protruding portions 13 and 14 shown in FIGS. 1 and 5 to 9 are provided.

  Although not shown in the drawings, even if either one of the peripheral side protruding portions 11; 12 is provided on the rolling element 2 and any one of the peripheral side protruding portions 11; Is possible. Moreover, even if any one of the end side protruding portions 13; 14 is provided in the rolling element 2 and any one of the end side protruding portions 13;

1 is a whistle, 2 is a rolling element, 3 is a whistle body part, 4 is a whistle case part, 5 is a mouthpiece part, 6 is a resonance chamber part, 7 is an outlet part, 8 is an air guide passage, and 9 is an internal empty room , 10 is a missing number, 11; 12 is a peripheral side protruding part, 13; 14 is an end side protruding part, 15 is an opening side fitting part, 16 is a peripheral side fitting part, 17 is an opening side fitting part, and 18 is Projection portion, 19 is a peripheral side fitting portion, 20; 21; 22 is an outer peripheral surface, 23 is a through-hole portion, 24 is a concave portion, 25 is an internal space portion 26 is an upper resonance chamber portion, 27 is a lower resonance chamber portion, 28 is an upper internal vacant part, 29 is a lower internal vacant part, 30 is an upper opening side fitting part, 31 is a lower opening side fitting part, 32; 33 is an upper peripheral side protruding part, and 34; Lower perimeter protruding part, 36 to 40 are missing numbers, 41 is a whistle, 42 is a resonance chamber part, 43 is an internal vacant part, 44 is a rolling element, 5 mouthpiece part, 46 air outlet portion.

Claims (8)

  A mouthpiece part to be applied to a human mouth, a resonance chamber part having a cylindrical inner vacant part for allowing air introduced from the mouthpiece part to flow in a circle, and an air In a whistle having a rolling element that rotates with flow and a blowout port provided between the mouthpiece part and the resonance chamber part, the rolling element has a closed cylindrical shape or an open cylindrical shape. A whistle characterized in that it is formed in a rod shape, and a peripheral protruding portion for reducing the contact area of the rolling element with the internal vacant part is provided on the inner peripheral surface of the rolling element or the internal vacant part.   The rolling element does not rotate in a random posture in the inner vacant part of the resonance chamber part, and the outer peripheral surface of the rolling element and the outer peripheral surface of the peripheral side protruding part are arranged on the inner vacant part side of the resonance chamber part. The whistle according to claim 1, wherein the whistle is configured to rotate in an artificial posture so as to face the inner peripheral surface.   The whistle according to claim 1, wherein the peripheral protruding portion is formed in an annular shape.   The whistle according to claim 1, wherein the rolling element is provided with a through hole or a recess.   2. The whistle according to claim 1, wherein an end-side protruding portion for reducing a contact area of the rolling element with the end face of the internal vacant part is provided on the end face of the rolling element or the internal vacant part.   6. The whistle according to claim 5, wherein the end-side protruding portion is formed in a convex and concave shape on the side of the tip from which the end-side protruding portion protrudes and the side of the rolling element or the side of the internal vacant portion.   The whistle according to claim 5, wherein the end-side protruding portion is formed in a convex shape divided into a plurality in the direction around the rolling element or the internal vacant portion.   A mouthpiece part to be applied to a human mouth, a resonance chamber part having a cylindrical inner vacant part for allowing air introduced from the mouthpiece part to flow in a circle, and an air In a whistle having a rolling element that rotates with flow and a blowout port provided between the mouthpiece part and the resonance chamber part, the rolling element has a cylindrical shape or a rod shape that is thicker than the center part at both ends. A whistle characterized by being constructed.

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