JP2007058143A - Megaphone with strap hole and manufacturing method thereof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a megaphone such that a user does not feel incompatibility when grasping the megaphone since a projection like a strap fitting part for a strap abuts against the hand when the strap fitting part is projected where the megaphone is grasped, and the strap fitted to the strap fitting part is not an obstacle when the megaphone is re-held or re-gripped. <P>SOLUTION: The megaphone comprises a horn 1 and a mouthpiece 10 and has a strap hole 12 bored in a wall surface nearby the mouthpiece. The strap is run through the strap hole. Consequently, none of a projection part etc., is provided to a grip part, so the user does not feel the incompatibility when gripping there. Further, the strap does not come out and is not an obstacle when the megaphone is gripped. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a megaphone with a hanging strap, and more particularly to a megaphone in which the hanging strap and its attachment do not get in the way when grasping.

  Conventional megaphones are mainly composed of a loudspeaker tube and an air outlet, and provided with a hanging string for suspending the megaphone from the neck. In order to attach the hanging string to the main body of the megaphone, for example, as in the megaphone 9 of Japanese Patent Application Laid-Open No. 2002-258867, the loudspeaker of the megaphone 9 having a shape in which the loudspeaker 90 and the air outlet 91 are connected by the small diameter part 93 is used. A perforated string attaching portion 92 for passing the hanging string is provided in the vicinity of the small-diameter portion 93 of 90 so as to project the hanging string 94 (see FIG. 6).

Further, in the megaphone disclosed in Japanese Patent Laid-Open No. 2000-352985, a ring-shaped fastening member 3 is fitted into the constricted portion (near the boundary between the loudspeaker tube and the blowout opening), and a strap, that is, a hanging string is attached to the fastening member 3. The end is fastened. Alternatively, it is attached by suspending a hanging string around the constricted portion of the megaphone (not shown).
Japanese Patent Laying-Open No. 2002-258867 (FIG. 2, string attaching portion 1e) Japanese Unexamined Patent Publication No. 2000-352985 (FIG. 1, fastening member 3)

  However, in the megaphone disclosed in Japanese Patent Laid-Open No. 2002-258867 described above, a string attaching portion 92 for attaching a string-like object is provided on the side outer surface of the small diameter portion 93 of the main body of the megaphone 9. Since it is also a part that is gripped when it is held by a hand (the hand naturally goes to that position), the protruding string attachment portion 92 may hit the hand and make it uncomfortable. This also applies to the megaphone disclosed in Japanese Patent Laid-Open No. 2000-352985 described above, and there is a problem that the ring-shaped fastening member hits the hand holding the constricted portion. Also, if the hanging strap is wrapped around the constricted part of the megaphone and tied, the hanging strap itself and the knot may feel uncomfortable. In addition, since the hanging strap 94 protrudes from the constricted portion as described above, the hanging strap may get in the way when the megaphone is picked up or re-gripped.

  Therefore, in this invention, when holding the megaphone, the protruding part such as the string attaching part does not feel uncomfortable when it touches the hand, and the hanging string does not get in the way when changing the megaphone. Let it be an issue.

  The above-described problem is achieved by a megaphone including a loudspeaker tube and a blower mouth, in which a string through hole is opened in a wall surface near the blower mouth. A megaphone in which a hanging string is passed through the string passing hole is also within the scope of the present invention.

  As described above, in the conventional megaphone, the hanging strap is attached to the constricted portion of the small diameter portion. However, in the present invention, this attachment position is moved toward the blowing port. As a result, there is no protrusion in the constricted portion of the small diameter portion, and there is no sense of incongruity and no pain when grasped here. That is, safety is increasing. In addition, when the hanging string is attached to this string passage hole, the hanging string has moved toward the air outlet, so that the hanging string does not get in the way when changing the constricted part of the small diameter part. Yes. Note that the hanging strap does not interfere with the blowout.

  In the megaphone according to claim 1 or 2, the megaphone comprising a loudspeaker tube and an air outlet is composed of two megaphones and one suspension string, and one suspension is provided in the string passage hole of each megaphone. It can be assumed that two megaphones are connected through a strap. With this configuration, it is possible to hang two megaphones left and right, etc., and suspend them from their necks. Therefore, the problem described above does not occur with both hands.

  Next, in the megaphone according to claim 1 or 2, the string passage hole may be formed so as to be rounded toward the inside of the wall surface. Although the problem has already been solved by the above-described solution, the string passage hole is rounded toward the inside of the wall surface, so that Even if the hand is held by hand, there is no sense of incongruity, safety is extremely high, and the appearance of the string-through hole is improved.

  The megaphone having such a structure is designed to mold a megaphone composed of a loudspeaker tube and an air outlet by blow molding, but a hollow protrusion is provided inward on the wall surface near the air outlet. After blow molding, the protrusion is cut on the inner side to make a string-through hole with a rounded outer side for easy manufacture. Furthermore, it is possible to pass the hanging string through a megaphone provided with such a string passing hole.

  Now, in the megaphone according to claim 1 or claim 2, ribs are formed on the wall surface in the vicinity of the air outlet, and the string passage hole is formed at the position of the rib. By providing the rib around the outer wall surface of the air outlet, the grip performance when gripping this is improved. In addition, when the rib is a convex rib and the stringing hole is formed so as to hang over the convex rib, the portion facing the stringing hole of the convex rib is rounded or cut in the direction of the stringing hole. The corners are not made and the touch is improved.

  In the present invention, since the string through hole is opened near the outlet of the megaphone, there is nothing in the constricted portion of the small diameter portion, and the hanging string does not get in the way easily. Further, in the case where the string passage hole is formed so as to be rounded toward the inside of the wall surface, even if it is gripped by hand, there is no sense of incongruity, the safety is high, and the appearance of the string passage hole is good.

  Several embodiments of the present invention will be described below with reference to the drawings. However, the present invention is not limited to these embodiments, and can be freely modified within the scope of the idea of the present invention. Is possible.

(First embodiment)
The external feature of the megaphone 1 is that a relatively long air outlet 10 having a length that is half the length of the loudspeaker tube 1 is provided. Both the loudspeaker 1 and the air outlet 10 are designed such that their diameters become narrower toward the small-diameter portion 11 that is the connecting portion between them. A string passing hole 12 is opened in an end of the air outlet 10 opposite to the small diameter portion 11, that is, a wall surface in the vicinity of the air outlet, and the hanging string 2 is passed through the string through hole 12. It is stopped in a ring shape. The megaphone 1 is formed by synthetic resin molding, but other materials such as wood and paper can be arbitrarily adopted.

  The megaphone 1 is of a very unique shape, and at the same time, the strap attachment portion for passing the hanging strap is not provided near the small-diameter portion 11 that is a part to be gripped by hand, Since it is supposed to have a hole in the vicinity of the mouth, it is easy to grip with the hand and the touch at this time is also good. Moreover, when the small-diameter portion 11 of the megaphone is picked up or re-gripped, the hanging strap 2 does not get in the way.

  Further, another string passage hole 12 is opened in the wall surface near the blower opening at the opposite position so that the ring-shaped hanging string 2 is passed through the two string passage holes 12 and 12. I can do it. Even in this case, there is an advantage similar to the above. Moreover, when the blower 10 is blown, the hanging string 2 does not get in the way.

(Second Embodiment)
This megaphone is characterized in that two megaphones 1 of the first embodiment described above are fixed to both ends of one hanging strap 2. Each of the megaphones 1 is formed by being tied to the string passage hole 12 through the end of the hanging string 2.

  In this way, the two megaphones 1 and 1 can be suspended from the neck by the single suspension string 2. Furthermore, a sound can be produced by using these two megaphones 1 and 1 like a beat tree and hitting each other. Note that the external characteristics of the megaphone 1 described above have an extraordinary effect that it is easy to grip even when used as a time tree.

(Third embodiment)
The string-through hole as described above is conveniently formed on the wall surface of the mouthpiece of the megaphone so as to be rounded inward. Although FIG. 3 shows this example, a string passage hole 32 in which a round 34 is attached to the wall surface of the air outlet 30 toward the inside is provided. With this rounded configuration, even if this part is gripped by hand, it is smooth and highly safe.

  Regarding the method of manufacturing such a megaphone, the loudspeaker 3 is also blown toward the megaphone having the shape shown in FIG. 4, that is, the small-diameter portion 31 that is the connection portion between the loudspeaker 3 and the blower 30. A megaphone shaped so that the diameter of both the mouths 30 is reduced is manufactured by blow molding of a synthetic resin. At this time, a hollow projecting portion 33 (nose) directed inward is provided on the wall surface near the air outlet. Like that. Then, at the position indicated by the arrow in the figure, the excision piece 36 at the mouth of the loudspeaker tube 3 is excised, and the excision piece 37 at the mouth of the air outlet 30 is excised, and a cutter is inserted from the mouth on the air outlet 30 side. In this way, the protruding portion 33 is cut as shown by the arrow line to open the string passage hole 32. By this operation, the round 34 is attached around the edge of the string passage hole 32. In FIG. 3, an uncut portion indicated by reference numeral 35 is shown.

(Fourth embodiment)
In the megaphone of the fourth embodiment shown in FIG. 5, four ribs 42 protrude from the air outlet 40. Of these four ribs 42, a string passage hole 44 is opened on the second rib from the end of the air outlet 40, and in this case, the rib 42 is formed toward the string passage hole 44. It is characteristic that the inclined part 43 is provided at the end. Reference numeral 4 denotes a loudspeaker, and reference numeral 41 denotes a small diameter portion.

  The rib 42 is designed and provided with a practical effect as an anti-slip, but if the string hole 44 is simply opened on the rib 42, a step of the rib 42 is produced at this portion. When gripping this, it may be painful at the cut end of the rib 42 (the edge of the string passage hole 44). In such a case, the inclined portion 43 is provided at this portion of the rib 42.

  In addition, according to the present invention, it is possible to fit eyelets or the like into the place where the string passage hole is opened. Further, in the case where the rib 42 is provided and the string passage hole 44 is opened so as to be hooked on the rib 42, it is also preferable to provide an edge with the same height as the rib 42 around the string passage hole 44.

  Moreover, since the kind of the hanging string is not particularly limited, a ribbon string, a ball chain, or the like can be arbitrarily used in addition to a cotton stranded wire and a synthetic resin fiber knitted wire.

  In the above-described embodiment, a megaphone provided with a relatively long air outlet having a length that is half the length of the loudspeaker is taken as an example, but the shape of the megaphone is basically arbitrary. Further, since the megaphone of the present invention is a so-called sports support goods, the structure of the present invention can be adopted as long as the sports support goods have a cylindrical grip portion.

  It is explanatory drawing of 1st Embodiment of this invention.   It is explanatory drawing of 2nd Embodiment of this invention.   It is sectional drawing of 3rd Embodiment of this invention.   It is explanatory drawing which shows the manufacturing method of the embodiment.   It is sectional drawing of 4th Embodiment of this invention.   It is explanatory drawing of a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Loudspeaker 10 Air outlet 11 Small diameter part 12 String passage hole 2 Hanging string 3 Loudspeaker 30 Air outlet 31 Small diameter part 32 String passage hole 33 Projection part 34 Earl 35 Uncut part 36 Cut piece 37 Cut piece 4 Loudspeaker 40 Blow Port 41 Small-diameter portion 42 Rib 43 Inclined portion 44 String passage hole

Claims (7)

  A megaphone consisting of a loudspeaker tube and an air outlet, with a string-through hole in the wall near the air outlet.   A megaphone comprising a loudspeaker tube and an air outlet, wherein a string passage hole is opened in the wall surface near the air outlet, and a hanging string is passed through the string passage hole.   The megaphone is composed of two loudspeakers and a mouthpiece, and one hanging string, and one hanging string is passed through the string passage hole of each megaphone and the two megaphones are connected. The megaphone according to claim 1 or 2, wherein:   The megaphone according to claim 1 or 2, wherein the string passage hole is formed so as to be rounded toward the inside of the wall surface.   The megaphone according to claim 1 or 2, wherein a rib is formed on a wall surface in the vicinity of the air outlet, and the string passage hole is formed at a position of the rib.   A method of manufacturing a megaphone that molds a megaphone comprising a loudspeaker tube and an air outlet by blow molding, and after the blow molding is performed on the wall surface near the air outlet so as to provide an inward protrusion, the protrusion is A method for manufacturing a megaphone with a string-through hole, in which a string-through hole with an outer radius is created by cutting the inside.   A method of manufacturing a megaphone that molds a megaphone composed of a loudspeaker tube and an air outlet by blow molding, and after the blow molding is performed so as to provide a hollow protrusion inward on the wall surface near the air outlet, the protrusion is A method of manufacturing a megaphone provided with a string-through hole, in which a string-through hole with an outer radius is formed by cutting inside and a hanging string is passed through the string-through hole.

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