Blow rifle with splash prevention function

Abstract

To avoid the risk of weakening the blowing force, to enable use in the same way as a normal blow rifle without impairing ease of use and feeling of use, and to effectively and sufficiently prevent the dispersion of droplets from a blowout port.SOLUTION: A blow rifle has a pipe-shaped blow tube body 2 with an inlet 2i at the rear end for blowing in an air A and an outlet 2o at the front end from which an arrow D comes out. The blow rifle is further provided with a splash prevention unit Uo having an inlet 3 connected to the outlet 2o in the blow tube body 2, a buffer chamber 4 capable of storing the air A flowing in from the outlet 2o, and an outlet cover 6 formed of an elastic sheet S attached to an outlet 5 of the buffer chamber 4, which allows the passage of an arrow D and has a function of blocking the outlet 5 with a plurality of partition pieces 6p... in a natural state where no external force is applied.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a blow rifle with a splash prevention function and a blowpipe body that can be used for recreational purposes, health promotion, etc. [Background technology]

[0002] Conventionally, blow rifles equipped with a pipe-shaped blowpipe body having an inlet at the rear end for blowing air and an outlet at the front end from which the arrow comes out have been widely used, and the applicant has already proposed this type of blow rifle in Patent Document 1.

[0003] The blow rifle of Patent Document 1 is intended to keep the blow port clean and hygienic even when used in a variety of environments, to make it easy to load an arrow, and to prevent movement (displacement) after loading. Specifically, in constructing a blow rifle that includes a pipe member and a blowing tube body having a blow port at one end of the pipe member for blowing air in, and an arrow outlet at the other end of the pipe member, a loading member 3 formed so that arrows can be loaded into the pipe member from the outside is provided on the peripheral surface of the pipe member located near the blow port, and a blowing tube body with an opening and closing member that can open and close the loading port is provided on the outer circumferential surface of the pipe member. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2019-74248 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, conventional blow rifles, including the blow rifle of Patent Document 1 mentioned above, had the following problems that needed to be solved.

[0006] In other words, because this type of blow rifle is used by blowing air (breath) forcefully into the mouthpiece, when in use, the droplets blown out by the user tend to spread to the surrounding area from the mouthpiece at the tip of the blow rifle.

[0007] In addition, droplets that spread can be the cause of infectious diseases such as coronaviruses, i.e., droplet infection, so measures to prevent the spread of droplets are also required. In particular, when using blowguns in sports competitions, players are required to blow strongly into the gun in order to compete for the distance the arrow can fly, and it is difficult to reduce the strength of the blow.

[0008] On the other hand, blowgun rifles are often used for recreation or health promotion by elderly people, so infection control is important. At the same time, the ease of use and feel that is required of a blowgun rifle are also important factors, and compromising these performance features is not desirable.

[0009] For this reason, there has long been a demand for the commercialization of a blow rifle that maintains the original performance of a blow rifle, such as ease of use and feel, without compromising it, while also providing effective and sufficient measures to prevent the spread of droplets.

[0010] The present invention aims to provide a blow rifle with a splash prevention function that solves the problems existing in the background art. [Means for solving the problem]

[0011] In order to solve the above-mentioned problems, the blow rifle 1 with splash prevention function according to the present invention is configured to have a pipe-shaped blow cylinder body 2 with an inlet 2i at the rear end for blowing in air A and an outlet 2o at the front end from which an arrow D comes out, and is characterized by having an inlet section 3 connected to the outlet 2o in the blow cylinder body 2, a buffer chamber 4 capable of accumulating the air A flowing in from the outlet 2o, and a splash prevention section Uo that allows the arrow D to pass through and has the function of blocking the outlet section 5 with multiple partition pieces 6p... in a natural state where no external force is applied, and is provided with an outlet cover section 6 formed from an elastic sheet S that is attached to the outlet section 5 of the buffer chamber 4.

[0012] In this case, according to a preferred embodiment of the invention, it is preferable that the inlet 3 of the droplet diffusion prevention unit Uo is detachably attached to the outlet 2o. The buffer chamber 4 can be tubular including a tapered tube 4m whose diameter increases gradually toward the front, and the lower peripheral surface 4md of the tapered tube 4m can be provided with one or more discharge holes 11... for discharging the air A inside the buffer chamber 4 diagonally forward and downward. On the other hand, it is preferable that the blow cylinder 2 has a centrally formed through hole Uic attached to the outer peripheral portion 2if near the blow inlet 2i, and is formed into a cup shape bulging forward to provide a mask Ui that covers the area around the user's lips. Effect of the Invention

[0013] The blow rifle 1 with splash prevention function according to the present invention having such a configuration provides the following remarkable effects.

[0014] (1) The blow rifle is provided with an inlet 3 connected to the blowout port 2o in the blowtube body 2, a buffer chamber 4 capable of storing air A flowing in from the blowout port 2o, and a splash prevention unit Uo that allows the arrow D to pass through and has the function of blocking the blowout port 5 with a plurality of partition pieces 6p... in a natural state where no external force is applied, and is provided with an outlet cover 6 formed of an elastic sheet S attached to the outlet port 5 of the buffer chamber 4. This makes it possible to avoid the risk of weakening the blowing force even when used for sports competitions, recreation, or health promotion, and also allows it to be used in the same way as a normal blow rifle without compromising usability or usability, and the splash prevention unit Uo can sufficiently and effectively prevent splash diffusion from the blowout port 2o.

[0015] (2) In a preferred embodiment, the inlet portion 3 of the droplet diffusion prevention part Uo is configured to be detachable from the droplet diffusion outlet 2o, so that the droplet diffusion prevention part Uo can be configured as a separate unit. For example, the droplet diffusion prevention part Uo can be removed and used outdoors where it does not need to be attached, and the droplet diffusion prevention part Uo can be attached and used indoors where it is required. This makes it possible to use the droplet diffusion prevention part Uo flexibly depending on the location of use, etc., and is easy to use and convenient.

[0016] (3) In a preferred embodiment, when constructing the buffer chamber 4, if it is formed into a cylindrical shape including a tapered cylindrical portion 4m whose diameter gradually increases toward the front, it can be implemented as an optimal form having an effective shape, such as reducing the flow resistance of the air A inside.

[0017] (4) In a preferred embodiment, one or more discharge holes 11... are provided on the lower peripheral surface 4md of the tapered tube portion 4m to discharge the air A inside the buffer chamber 4 diagonally downward and forward, so that the temporarily accumulated air A can be discharged in a specific set direction, thereby preventing the unwanted dispersion of droplets.

[0018] (5) In a preferred embodiment, a centrally formed insertion hole Uic is attached to the outer peripheral portion 2if in the vicinity of the blow-in port 2i of the blow-out tube body 2, and the mask portion Ui is formed in a cup shape that bulges forward, thereby providing a mask portion Ui that covers the area around the user's lips. This makes it possible to prevent droplet diffusion on the blow-in port 2i side, and by combining this with the droplet diffusion prevention portion Uo on the outlet port 2o side, more reliable and effective prevention of droplet diffusion can be achieved. [Brief description of the drawings]

[0019] [Figure 1] FIG. 1 is a side view showing an entire blow rifle with a splash prevention function according to a preferred embodiment of the present invention; [Diagram 2] A side cross-section showing the splash prevention part of the blow rifle with splash prevention function (X2-X2 cross-section in Figure 3), [Diagram 3] FIG. 2 is a front view of the splash prevention part (outlet cover part) of the blow rifle with splash prevention function; [Figure 4] A side cross-sectional view including an explanatory diagram for attaching the mask part of the blow rifle with the splash prevention function; [Diagram 5] A rear view of the mask part of the blow rifle with splash prevention function. [Figure 6] A diagram explaining the preparation before use of the blow rifle with splash prevention function; [Figure 7] A diagram showing how to use the blow rifle with splash prevention function, [Figure 8] A diagram explaining the operation of the blow rifle with splash prevention function, DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] Next, preferred embodiments of the present invention will be described in detail with reference to the drawings.

[0021] First, the configuration of a blow rifle 1 with a splash diffusion prevention function according to this embodiment will be described with reference mainly to Figs. 1 to 5.

[0022] The blow rifle 1 with splash prevention function is equipped with a blowpipe body 2 having basic functions, as shown in Fig. 1. The blowpipe body 2 is formed of a pipe member using a lightweight rigid material such as aluminum or plastic.

[0023] The illustrated blowing tube 2 is made of aluminum material with a thickness of 0.8 mm. The overall length of the blowing tube 2 is set to 700 mm or more, preferably 1000 mm or more. The illustrated blowing tube 2 has an overall length of 1200 mm and an outer diameter of 14 mm. As a result, the rear end (user side) of the blowing tube 2 becomes the blowing port 2i for blowing in air A, and the front end becomes the blowing port 2o from which the arrow D comes out.

[0024] The blowing piece 21 is provided at the blowing opening 2i of the blowing tube 2. The blowing piece 21 is detachable from the blowing opening 2i. FIG. 6 shows the blowing piece 21 removed from the blowing opening 2i. Therefore, the blowing piece 21 is formed in a ring shape (tube shape) from a flexible plastic material or the like. Furthermore, a loading opening 2m is formed on the upper surface of the outer circumferential portion 2if near the blowing opening 2i, through which an arrow D can be inserted from the outside into the blowing tube 2. In this case, as shown in FIG. 1 and FIG. 4, the loading opening 2m is formed by cutting out the upper half of the peripheral surface portion in the radial direction of the blowing tube 2. An opening / closing member 22 capable of opening and closing the loading opening 2m is attached to the outer circumferential surface of the blowing tube 2. In this case, the opening / closing member 22 is formed in a pipe shape that is slidable in the axial direction by being arranged on the outer circumferential surface of the blowing tube 2. This opening / closing member 22 can be formed from a rigid material such as aluminum or plastic.

[0025] On the other hand, the front end of the blowing tube 2, i.e., the blowing outlet 2o, is equipped with a droplet diffusion prevention section Uo having a droplet diffusion prevention function which constitutes the essential part of the present invention, and the rear end of the blowing tube 2, i.e., the blowing inlet 2i, is equipped with a mask section Ui having a droplet diffusion prevention function.

[0026] The specific configuration of the droplet diffusion prevention unit Uo is shown in Figures 2 and 3. This droplet diffusion prevention unit Uo is configured with a buffer chamber 4 and an outlet cover unit 6. The buffer chamber 4 is integrally molded as a whole from a plastic material such as ABS resin. This buffer chamber 4 has a tapered tube portion 4m in the middle, the diameter of which gradually increases from the front to the rear. The illustrated tapered tube portion 4m is formed in two stages, a first tapered tube half portion 4mf on the front side and a second tapered tube half portion 4mr on the rear side.

[0027] The first tapered cylinder half 4mf has a circumferential angle with respect to the axis set relatively small, and has an outlet section 5 with a flange-like mounting surface 5f integrally formed at the front end, which protrudes radially. The second tapered cylinder half 4mr has a circumferential angle with respect to the axis set relatively large, and has a cylindrical inlet section 3 integrally formed at the rear end, which connects to the outlet 2o of the blowing cylinder body 2, and the front end opening of the second tapered cylinder half 4mr and the rear end opening of the first tapered cylinder half 4mf are integrally formed continuously so as to communicate with each other. In this way, when forming the buffer chamber 4, if it is formed into a cylindrical shape including the tapered cylinder section 4m whose diameter increases sequentially from the front side, it can be realized as an optimal form having an effective shape, such as reducing the flow resistance of the air A inside.

[0028] In this case, the inlet section 3 provided at the rear end of the second tapered cylinder half section 4mr can be configured to be detachable from the outlet 2o of the blowing cylinder body 2. Therefore, since the droplet diffusion prevention section Uo can be configured as a separate unit from the blowing cylinder body 2, it is possible to flexibly use the droplet diffusion prevention section Uo according to the location of use, for example, by removing the droplet diffusion prevention section Uo for use outdoors where it is not required to be attached, and by attaching the droplet diffusion prevention section Uo for use indoors where it is required, and this provides excellent usability and convenience.

[0029] Furthermore, one or more discharge holes 11 are provided on the peripheral surface 4md below the tapered tube portion 4m to discharge the air A inside the buffer chamber 4 diagonally downward and forward. In the illustrated example, as shown in FIG. 2, a U-shaped cut is formed on the peripheral surface 4md to form a protruding piece 11s that protrudes forward, and the protruding piece 11s is bent downward. This allows the temporarily accumulated air A to be discharged in a set specific direction, preventing the harmful effect of unnecessary dispersion of droplets. In the illustrated example, two discharge holes 11, 11 are provided side by side, although not shown in the figure.

[0030] As shown in Figs. 2 and 3, the outlet cover part 6 is integrally formed from a single elastic sheet S made of rubber or the like. This allows the outlet cover part 6 to pass through the arrow D, and in a natural state where no external force is applied, the outlet cover part 6 has the function of shielding the outlet part 5 with a plurality of partition pieces 6p.... The partition pieces 6p... shown in the example are formed in the same manner as general oval rubber. That is, four cut slits are formed at equal angular intervals in the diameter direction to provide eight partition pieces 6p.... This outlet cover part 6 is attached and fixed to the mounting surface part 5f provided on the outlet part 5 of the buffer chamber part 4, as shown in Fig. 2.

[0031] On the other hand, a mask section Ui shown in Figures 4 and 5 is provided on the outer peripheral section 2if in the vicinity of the blowing port 2i of the blowing cylinder 2. The entire mask section Ui is integrally formed from an elastomer-based plastic material or the like in a cup shape that bulges forward, and an insertion hole Uic is formed in the center through which the blowing cylinder 2 passes. This allows the mask section Ui to cover the area around the user's lips when in use, preventing droplet diffusion on the blowing port 2i side. As a result, by combining it with the droplet diffusion prevention section Uo on the blowing port 2o side, more reliable and effective droplet diffusion prevention can be achieved.

[0032] When attaching the mask part Ui, as shown in Fig. 6, the insertion hole Uic of the mask part Ui is attached to the outer periphery 2if of the blowing cylinder body 2 through the blowing port 2i from which the blowing piece 21 has been removed. In this case, by selecting the inner diameter of the insertion hole Uic to be slightly smaller than the outer diameter of the outer periphery 2if, the outer periphery 2if can be pressed into the insertion hole Uic, thereby preventing unnecessary positional deviation during use. After attaching the mask part Ui, the blowing piece 21 is then attached again. In this manner, the mask part Ui can be easily attached.

[0033] Next, the method of use and the action of the blow rifle 1 with splash prevention function according to this embodiment will be described with reference to Figs.

[0034] As mentioned above, when the splash prevention function is not required, only the blowtorch body 2 can be used and it can be used as a normal blow rifle.

[0035] On the other hand, when used as a blow rifle 1 with a splash prevention function, in addition to the blow tube body 2, optional splash prevention parts Uo and mask parts Ui can be prepared and attached to the front and rear of the blow tube body 2 respectively.

[0036] First, when attaching the splash diffusion prevention part Uo, the splash outlet 2o at the front end of the blowing cylinder body 2 is inserted into the cylindrical inlet part 3 of the splash diffusion prevention part Uo as shown by the arrow Fa in Fig. 2 to join the two. Although the example shows a case where the connection is made by a press-fit method, other known connection methods such as a screw connection method can also be used.

[0037] In attaching the mask part Ui, the blowing piece 21 is removed from the blowing port 2i, and then the insertion hole Uic of the mask part Ui is attached to the outer periphery 2if of the blowing cylinder body 2, and when the attachment is completed, the blowing piece 21 is attached to the blowing port 2i again, as shown in Fig. 6. Fig. 4 shows the state (position) in which the mask part Ui, shown by an imaginary line, is attached to the rear end side of the blowing cylinder body 2.

[0038] This allows it to be used as the blow rifle 1 with splash prevention function shown in Fig. 1, so when in use, as shown in Fig. 6, if the opening and closing member 22 is slid forward to open the loading port 2m, an arrow D can be loaded from this loading port 2m in the direction of the outlined arrow. Then, after the arrow D is loaded, the opening and closing member 22 is slid backward to close the loading port 2m.

[0039] 7, the user Hu holds the opening and closing member 22 of the splash prevention function-equipped blow rifle 1 with one hand Huq and holds the middle part of the blowpipe body 2 with the other hand Hup. In this state, the user Hu places his / her lips on the blow piece 21 and blows air into the blow piece 21, allowing the arrow D to be shot.

[0040] When air is blown into the blowing piece 21, as shown in Fig. 7, the mask part Ui covers the area around the lips of the user Hu, preventing the spread of droplets at the blowing port 2i side. In addition, the loaded arrow D is blown forward by blowing air A into the blowing cylinder 2. The arrow D shown by the imaginary line in Fig. 8 shows the state where it has moved forward inside the blowing cylinder 2.

[0041] After passing through the inside of the blowing cylinder 2, the arrow D passes through the inside of the buffer chamber 4 and is then released to the outside through the outlet cover 6. In this case, the outlet cover 6 has the function of allowing the arrow D to pass through and blocking the outlet 5 with the multiple partition pieces 6p... in a natural state where no external force is applied. The arrow D shown by the solid line in Figure 8 shows the state in which the arrow D is pushed aside the partition pieces 6p... and released to the outside.

[0042] On the other hand, the air A blown into the blowing cylinder 2 is temporarily stored inside the buffer chamber 4 and then discharged to the outside through the discharge holes 11. In this case, the air is discharged in a specific direction indicated by the dotted arrow in Fig. 8, that is, diagonally downward and forward with respect to the user Hu.

[0043] Thus, according to the blow rifle 1 with splash diffusion prevention function of this embodiment, as a basic configuration, the splash diffusion prevention part Uo is provided with the inlet part 3 connected to the outlet 2o in the blow tube body 2, the buffer chamber part 4 capable of accumulating the air A flowing in from the outlet 2o, and the outlet cover part 6 formed of an elastic sheet S attached to the outlet part 5 of the buffer chamber part 4, which allows the arrow D to pass and has the function of shielding the outlet part 5 with a plurality of partition pieces 6p... in a natural state where no external force is applied, so that the splash diffusion prevention part Uo can be provided integrally with the outlet 2o in the blow tube body 2. This makes it possible to avoid the risk of weakening the blowing force even when used for sports competitions, recreation, or health promotion, and also allows it to be used in the same way as a normal blow rifle without impairing usability or usability, and the splash diffusion prevention part Uo can sufficiently and effectively prevent splash diffusion from the outlet 2o.

[0044] Although the preferred embodiment has been described in detail above, the present invention is not limited to such an embodiment, and the detailed configuration, shape, material, quantity, numerical values, etc. can be changed, added, or deleted as desired without departing from the gist of the present invention.

[0045] For example, it is desirable that the inlet 3 of the splash prevention unit Uo is detachably configured with respect to the outlet 2o, but this does not exclude the case where the splash prevention unit Uo and the blowing cylinder body 2 are configured integrally. In this case, the inlet 3 and the outlet 2o are a common path. The buffer chamber 4 is exemplified as including a tapered tube portion 4m whose diameter increases gradually toward the front, but the tapered tube portion 4m is not necessarily provided, and a simple cylindrical form is not excluded. In addition, one or more discharge holes 11... that discharge the air A inside the buffer chamber 4 diagonally forward and downward can be implemented in various forms without being limited to the exemplified form. In this case, the direction in which the air A is discharged is not limited to diagonally forward and downward, and any direction, position, and discharge amount can be set. In this case, for example, it is also possible to form the discharge holes 11... at multiple positions and provide a set of openable and closable lids so that the discharge holes 11... to be used can be selected according to the environment, location, etc. Furthermore, it is desirable to use the mask portion Ui together with the droplet diffusion prevention portion Uo, but this is not an essential component of the present invention and may be selected and used as desired. [Industrial Applicability]

[0046] The blow rifle with splash prevention function according to the present invention can be used in a wide range of fields, including indoor and outdoor sports, adult recreation, and health promotion. [Explanation of symbols]

[0047] 1: Blow rifle with splash prevention function, 2: Blow barrel body, 2i: Blow inlet, 2if: Outer periphery, 2o: Outlet, 3: Inlet, 4: Buffer chamber, 4m: Tapered barrel, 4md: Lower periphery, 5: Outlet, 6: Outlet cover, 6p...: Multiple partition pieces, 11...: One or more release holes, Uo: Splash prevention section, Ui: Mask, Uic: Insertion hole, A: Air, D: Arrow, S: Elastic sheet

Claims

1. This blow rifle with a splash spread prevention function has a pipe-shaped blow tube body with an inlet at the rear end for blowing air and an outlet at the front end from which an arrow comes out, and is characterized in that it is equipped with a splash spread prevention unit that has an inlet section connected to the outlet in the blow tube body, a buffer chamber section capable of accumulating air flowing in from the outlet, and an outlet cover section formed from an elastic sheet that allows the arrow to pass through and has the function of blocking the outlet section with a plurality of partition pieces in a natural state where no external force is applied, and is attached to the outlet section of the buffer chamber.

2. The blow rifle with splash prevention function according to claim 1, characterized in that the splash prevention section is configured so that the inlet section is detachable from the splash outlet.

3. 2. The blow rifle with splash prevention function according to claim 1, wherein the buffer chamber is configured as a cylinder including a tapered cylinder portion whose diameter gradually increases toward the front.

4. The blow rifle with splash prevention function described in claim 3, characterized in that the buffer chamber has one or more discharge holes on the lower peripheral surface of the tapered cylindrical portion for discharging air inside the buffer chamber diagonally forward and downward.

5. The blow rifle with splash prevention function described in claim 3, characterized in that the blow cylinder has a central insertion hole attached to the outer periphery near the blowing port, and is formed into a cup shape that bulges forward, thereby providing a mask portion that covers the user's lips.

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