JP2005124623A - Blow mouth structure of flying rubber balloon - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a blow mouth structure prevented from improperly falling from an mouth part of a rubber balloon and to provide a connecting structure, even if dividing the blow mouth structure into two, prevented the both from being improperly separated from each other. <P>SOLUTION: This cylindrical blow mouth structure to be tightly inserted into the mouth part of the rubber balloon is provided with two or more flanges on its outer circumference, a recessed part between the flanges is served as a catch of the mouth part, and the flange inserted into the mouth part of the rubber balloon out of the flanges is formed into a larger diameter than that of the other flange. At least, the foremost flange in the mouth part insertion side is set to a large diameter. The cylindrical blow mouth structure to be tightly inserted in the mouth part of the rubber balloon is formed by axially divided into two and the both members may be fixedly fitted. Or, one of the divided both members is provided with a return claw and the return claw is constituted lockingly insertable into the other member and fixedly fitted therein. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention is applied to a mouth portion of a rubber balloon, and relates to an air inlet structure for injecting air into the balloon and causing the balloon to fly stably by blowing out the injected air.

  Conventionally, as a toy and a support goods such as baseball, a flying rubber balloon (sometimes called a jet balloon) is widely known in which a plastic cylindrical blowing member is inserted into the mouth of a rubber balloon. . The cylindrical blowing member has a function of constantly inflating the mouth of the rubber balloon and injecting air, and also functions as an outlet of the infused air to emit a sound and stably fly the rubber balloon. Is.

  Generally, a cylindrical blowing member is used by providing two flanges on the outer periphery of a hollow cylindrical member having a diameter tightly inserted into the mouth of the rubber balloon, and hooking the mouth of the rubber balloon between the flanges. Is.

  On the other hand, in Patent Document 1 and Patent Document 2, three or more flanges are provided, and as a result, two or more recesses are provided, so that a spare is provided for catching the mouth of the rubber balloon, and the cylindrical blowing member is inadvertently dropped. Some have tried to prevent accidental ingestion during air injection and dropout during balloon flight.

Japanese Utility Model Publication No. 47-35894 Japanese Utility Model Publication No. 56-4073

  However, in the prior art disclosed in the above-mentioned patent document, since the diameters of a plurality of flanges are all the same, if the mouth of the rubber balloon comes off from one of them, it will be caught with other flanges under the same conditions. Is also released, and there is a problem that it is not possible to expect more reliable prevention of the cylindrical blowing member from falling off.

  By the way, the outer shape of the cylindrical blowing member is generally as described above, but there are some in which the shape of the upper and lower ports is changed such that one is a check valve and the other is a whistle function. In such a case, for molding reasons, a means for integrally assembling the cylindrical blowing member by dividing the cylindrical blowing member into upper and lower parts and fitting them together is employed (see, for example, Japanese Patent No. 3385257). However, since the fitting is a locking structure with ridges and grooves, there is a problem that they are separated relatively easily. Of course, if the upper and lower members are separated, there are problems such as accidental ingestion of members and hindrance to flight.

  This invention is made | formed in view of the subject mentioned above, The place made into the objective is to provide the blowing inlet structure which does not drop | omit carelessly from the opening | mouth part of a rubber balloon. Moreover, it is also one of the objects of the present invention to disclose a coupling structure in which both of them are not inadvertently separated even when the inlet structure is divided into two.

  In order to achieve the above-described object, the present invention is a cylindrical blowing port structure that is tightly inserted into the mouth portion of a rubber balloon, wherein two or more flanges are provided on the outer periphery, and a recess between the flanges is provided in the mouth portion. In addition to the hook, the flange inserted into the mouth portion of the rubber balloon among the flanges was formed to have a larger diameter than the other flanges. According to this means, the concave portion between the flanges functions as a hook of the mouth portion of the rubber balloon, which is the same as the prior art, but the flange inserted into the mouth portion of the rubber balloon is formed with a large diameter. The function to prevent the mouth from falling off is enhanced. In addition, a means that the large-diameter flange is applied to at least a flange positioned at the forefront of the mouth insertion side is also used.

  On the other hand, the present invention also uses means for dividing such a cylindrical blowing port structure into two parts in the axial direction and fitting the two divided parts together. By dividing the blowing port member in two, the shape of the upper and lower ports can be arbitrarily set, and by making it fit, it is possible to prevent inadvertent separation of the divided member after assembly. More specifically, the two members divided into two can be provided with a return claw on one side, and the return claw can be engaged and inserted into the other member so as to be fitted and killed.

  Needless to say, by using a means for providing a large-diameter flange in combination with the two-divided structure, it is possible to provide a practical flying rubber balloon blowing port structure having the advantages of both.

  As described above, according to the present invention, the cylindrical blowing port structure is tightly inserted into the mouth portion of the rubber balloon, and two or more flanges are provided on the outer periphery, and the recess between the flanges is used as a hook for the mouth portion. Of the flanges, the flange inserted into the mouth of the rubber balloon is formed to have a larger diameter than the other flanges, so that the function of preventing the mouth from falling off is enhanced, and accidental ingestion of the blowing member can be avoided. it can.

  In addition, the cylindrical blowing port structure is divided into two parts in the axial direction, and the two divided parts are fitted and killed, so that it is possible to prevent inadvertent separation of the divided members after assembly. Drinking etc. can be avoided more effectively.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 shows one embodiment of the present invention, in which two large and small flanges 2 and 3 are provided on the outer periphery of a hollow cylindrical member 1 that is tightly inserted into a mouth K of a rubber balloon F. The recessed portion 4 provided between them is used as a catch of the mouth K. Of the flanges 2 and 3, the flange 3 on the side inserted into the mouth K is formed to have a larger diameter than the other flange 2, thereby enhancing the catching effect.

  In addition, since the diameter of both flanges 2 and 3 is changed according to the diameter of the mouth part K of the rubber balloon F to apply and its expansion-contraction rate, it does not specifically limit, but the mouth part K is a large diameter side flange. 3, it is necessary to prevent the portion around the mouth K from being broken at this time.

  Next, FIG. 2 shows another embodiment of the present invention, and shows an air inlet structure divided into two in the axial direction. Then, the divided members are assembled integrally by fitting and killing, and as shown in detail in FIG. 3, the dividing member 5 is formed with a locking groove 5b on the inner periphery 5a, while the other divided portion is formed. The member 6 is provided with a fitting portion 6b that can be inserted into the divided member 5 and has a return claw 6a formed at the tip. According to the blowing member having such a two-part structure, the return claw 6a is elastically deformed inward when the fitting portion 6b is inserted, and after the insertion is completed, the return claw 6a is elastically formed in the locking groove 5b. Engage and get into a state of slamming.

  In addition, the structure of two embodiment mentioned above can be used together. With this combination, it is possible to make the upper and lower ports of the blowing member more diverse and, of course, the effect of preventing the blowing member from dropping off is further enhanced by the catching effect and the fitting-killing effect of the large-diameter flange 2. .

Sectional drawing of the blower inlet structure which concerns on one Embodiment of this invention External view of the air inlet structure according to another embodiment of the present invention Sectional drawing of the principal part of the blowing inlet structure which concerns on other embodiment

Explanation of symbols

1 Hollow cylindrical member 2 Flange (small diameter side)
3 Flange (large diameter side)
4 Recess 5 One split member 5b Locking groove 6 Other split member 6a

Claims (5)

It is a cylindrical blowing port structure that is tightly inserted into the mouth of a rubber balloon, provided with two or more flanges on the outer periphery, a recess between the flanges as a hook of the mouth, and the rubber balloon of the flange A flying rubber balloon blowing port structure, wherein a flange inserted into the mouth portion is formed to have a larger diameter than other flanges. The blow-in structure for a flying rubber balloon according to claim 1, wherein at least the foremost flange on the mouth insertion side has a large diameter. A blow-in structure for a flying rubber balloon, which is a cylindrical blow-in structure that is tightly inserted into the mouth of a rubber balloon and is divided into two parts in the axial direction, and both members are fitted and killed. The blow-off structure for a flying rubber balloon according to claim 3, wherein each of the two divided members is provided with a return claw on one side, and the return claw is configured so as to be engageable and insertable into the other member. The blow-in structure for a flying rubber balloon according to claim 3 or 4, wherein the structure according to claim 1 or 2 is combined.

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