WO2007000983A1

WO2007000983A1 - Darts tip, darts shaft, and darts

Info

Publication number: WO2007000983A1
Application number: PCT/JP2006/312759
Authority: WO
Inventors: Jun Nakamura
Original assignee: Ron Corporation
Priority date: 2005-06-28
Filing date: 2006-06-26
Publication date: 2007-01-04

Abstract

A darts enabling an increase in the durability of a darts tip without using a hard material and the easy extraction thereof from a board and preventing the board from being damaged and the tip of the darts. Four grooves (18) are formed in the surface of the tip (10) along the longitudinal direction from its tip (12) up to its other end (14), and the cross section thereof is formed in a shape other than circular shapes. The tip (12) is fitted to a board hole, and the other end (14) is formed detachable from the end of a barrel not shown. Since the cross section of the contact portion of the tip with the board is formed in a shape other than circular shapes by forming the grooves (18) therein, a load applied to one point is reduced and the durability of the tip (10) can be increased. Since the durability of the tip (10) is increased depending on the shape thereof, the hard material must not be used for the tip, the load on the darts board is reduced, and the durability of the board can be increased. Furthermore, since the contact area of the tip with the board is reduced, the darts tip can be easily extracted from the board.

Description

Specification

Dart chip, dart shaft, dart

Technical field

TECHNICAL FIELD [0001] The present invention relates to a duck, a dart chip (or a point) which is a component thereof, and a dull shaft.

Background art

[0002] The dart is composed of a tip, a barrel, a shaft, and a fly from the leading end side. Also, the dart has a metal needle at the tip, a hard dart to play by throwing it on a board compressed with hemp, and a plastic with a countless hole formed at the tip. There are two types of soft darts that are thrown toward the board made of greaves. Soft darts have been widely used in recent years because they are made of plastic at the tip and are therefore very safe and can be played easily.

FIG. 9 shows an example of a conventional soft dart chip (or point). As shown in the perspective view of FIG. 9 (A), the tip 300 has a narrow tip 302, and a middle portion 306 is provided with a node 306 having a large diameter. The node 306 is provided so as not to go too far into the hole in the board, and may be provided as necessary. The other end 304 is a screw part that can be attached to and detached from the end of the barrel (not shown). When the tip 302 side is fitted into the hole of the board, the duck is stuck. When such a chip 300 is cut along the # C- # C line and viewed in the direction of the arrow, the cross section is almost circular as shown in FIG. 9 (B). Needless to say, the circular shape here includes not only perfect circles but also those that are slightly elliptical due to manufacturing errors (such as precision when cutting the mold)!

[0004] By the way, in the above-mentioned darts in general, the shaft is a body of V, a dull dart, and when the barrel and the flight are connected and thrown, in most cases, the shaft has a barrel. It has become. Usually, as shown in Patent Document 1 below, the flight is attached by inserting a part of the flight into a substantially cross-shaped slit formed on the tip side of the shaft. Alternatively, the shaft is provided with a slit that penetrates in a direction substantially perpendicular to the axial direction of the shaft. However, it may be attached through a flight folded flat in the slit.

Patent Document 1: Japanese Unexamined Patent Application Publication No. 2004-242937

Disclosure of the invention

Problems to be solved by the invention

[0005] However, the background art as described above has the following disadvantages. First, regarding the soft dart, since the cross-sectional shape of the chip 300 is substantially circular, a strong force is required when pulling out a dart having a large contact area with the hole in the board. In addition, the chip 300 currently in use is weak in durability and is bent or broken immediately, so the replacement frequency is very high. For this reason, it is convenient for a player to be as hard and durable as possible and to be able to use chips. However, at stores where dart machines are installed, if hard chips are used, there is a disadvantage that the dart base hurts and the durable life is reduced. The number of tournaments is increasing!

[0006] On the other hand, with regard to the Dart flight in general, in the background art described above, in either case, the fixed range of the flight is narrow or there are few fixed points, so the flight may easily lose its shaft force. . In addition, the method of passing the flight through the slit that penetrates the shaft also has the disadvantage that the flight does not open firmly in a cruciform shape and tends to be crushed, so that the stability when flying a dart is lacking.

[0007] Further, in the normal play, the darts as described above are thrown to 1 throw, and until one player finishes throwing all 3 darts, the dart thrown first remains stuck. It is done. Therefore, there is an inconvenience that the duck that has already been stabbed is likely to play the subsequent duck. In order to avoid this, a dart that may cause the flight to rotate with respect to the shaft may be used.

[0008] The present invention focuses on the above points, and its purpose is to improve the durability without using a hard material and to remove the board from the board immediately and without damaging the board. Is to provide a chip.

[0009] Another object is to provide a dull shaft that does not easily disengage the flight from the shaft and that can maintain a flight shape suitable for stable flight.

[0010] Yet another objective is that a subsequent duck is played by a duck that is already stuck. It is to provide a dart that can alleviate.

Means for solving the problem

[0011] In order to achieve the above object, the dart chip of the present invention is a chip in which the tip side is fitted into a hole provided in the board and the other end side is detachable from the duck body, The cross section of the portion that contacts the hole has a shape other than a circle. The main form is that at least one groove is provided along the longitudinal direction on the surface of the portion that contacts the hole of the board, or at least one or more is provided on the surface of the portion that contacts the hole of the board. It is characterized by providing a hole or a depression.

[0012] A dart of the present invention is characterized in that the dart chip according to any one of claims 1 to 3 is provided at a tip.

[0013] The dart shaft of the present invention is a dart shaft to which a flight is detachably attached, and is formed in the axial direction of the duck shaft, and all surfaces of the flight composed of a plurality of blade pieces are disposed on the flight surface. It is characterized by having a plurality of grooves or notches that can be fixed over a wide range in the axial direction.

[0014] A dart shaft of another invention is a dart shaft to which a flight is detachably attached, and is formed in the axial direction of the duck shaft, and all the surfaces of the flight composed of a plurality of blade pieces are all over the surface. A plurality of groove notches that can be fixed over a wide range in the axial direction of the flight, and a detachable provided at the end of the dart shaft, and closing the ends of the plurality of grooves or notches It is characterized by that. One of the main forms is characterized in that the plurality of grooves or notches have a step for determining a fixed position of the flight.

[0015] The dart of another invention is a dart composed of a flight and a part that can be divided into a plurality of parts in the axial direction, and has flexibility in at least one part between the divided parts. The squeezing member is detachably provided. One of the main forms is characterized in that the stagnation member is formed of rubber. Another embodiment is characterized in that it also serves as a weight for adjusting the squeezing member force and weight.

[0016] Further, the dart of another invention is characterized in that it is formed of a material softer than at least a part of the force part of the shaft part to which the flight is attached. The above and other aspects of the invention The purpose, features, and advantages will be clear from the following detailed description and accompanying drawings.

The invention's effect

[0017] In the present invention, since the tip of the dart chip, that is, the cross section of the contact portion with the board, has a shape other than a circle, the burden applied to one point is reduced and the durability is improved. In addition, the durability of the chip is enhanced, which reduces the burden on the dart board that does not require the use of hard materials, and improves the durability of the board. Furthermore, since the contact area with the boat is small, it is possible to pull out the dart without requiring a strong force.

[0018] In addition, since all the planes of the flight are fixed over a wide range in the axial direction of the flight by a plurality of grooves or notches provided in the axial direction of the shaft, the flight is detached from the shaft. At the same time, if the flight shape can be maintained in a shape suitable for stable flight!

[0019] Further, a flexible squeeze member is detachably attached to at least any portion of the force between the divided parts in a dart composed of parts that can be divided into a plurality of parts in the axial direction. Or, at least a part of the shaft part to which the flight is attached was made of a softer material than the other parts. For this reason, even when a subsequent dart hits a dart that is being stabbed, at least a part of the dart that is stabbing will be played, so that the subsequent dart can be played and stable play can be performed. .

Brief Description of Drawings

FIG. 1 is a diagram showing Example 1 of the present invention, (A) is a perspective view showing the appearance of a chip of this example, and (B) is a chip of this example. A perspective view of the appearance of the dart used, (C) is a cross-sectional view of (A) cut along line # A— # A and viewed in the direction of the arrow.

FIG. 2 is a view showing a modification of the chip of the first embodiment, (A) is a plan view, and (B) to (D) are sectional views.

FIG. 3 is a diagram showing another embodiment of the present invention, (A) is a perspective view showing the appearance of the chip of Example 2, and (B) shows the appearance of the chip of Example 3. A plan view, (C) is a sectional view of (B) cut along line # B- # B and viewed in the direction of the arrow.

FIG. 4 is a view showing Example 4 of the present invention, (A) is an external perspective view of a dart using the shaft of this example, (B) is an external perspective view of the shaft, (C) shows the mounting part of the shaft. (D) is a perspective view showing a state before connection between the mounting portion and the connecting portion of the shaft, and (E) is a perspective view showing (A) with different angular forces.

Yes

FIG. 5 is a view showing Example 5 of the present invention, (A) is an external perspective view of a dart using the shaft of this example, (B) is an external perspective view of the shaft, (C) is a perspective view in which the shaft is unfolded and the inner force is seen, and (D) is a perspective view in which the shaft is unfolded and the outer force is also seen.

FIG. 6 is a diagram showing Example 6 of this example, (A) is an external perspective view of a duck using the shaft of this example, (B) is an external perspective view of the shaft, (C)-(E) is the perspective view which also looked at the angle force different from said (A) and (B), and the mode that a flight was attached to the said shaft.

FIG. 7 is an external perspective view showing Example 7 of the present invention.

FIG. 8 is a view showing Example 8 of the present invention, (A) is an external perspective view of the duck of this example, (B) is an exploded perspective view of the duck, and (C) is a book. It is a disassembled perspective view which shows the modification of an Example.

[FIG. 9] FIG. 9 is a diagram showing an example of the background art, (A) is a perspective view showing the appearance, (B) is the above (A) cut along line # C # C, and in the direction of the arrow FIG.

Explanation of symbols

10A ~: L0D: Chip (N! /, Shi point)

12:: Tip

14:: End

16:: clause

18, 18B, 18C: Groove

20:: Chip

22:: Tip

24:: End

26:: clause

28:: Groove

30:: Chip

32:: Tip :edge

:section

: Depression

: Dar

: Norenore

: Shaft (Dar shaft): Flight

: Shaft (Dar shaft): Mounting part

A-112D: clamping piece

, 118, 118A-118D: end, 116: surface

:groove

:Flight

A-122D: Feather pieces

: Connecting part

, 128: End

:shaft

A ~ 130D: clamping piece

, 138, 138A to 138D: Edge A, 136A: Surface

A ~ 140D: Step

, 144: Groove

:shaft

A ~ 150D: Slit

, 154: End

:cap

:Fitting portion 160: head

170: Shaft

170A, 170B: Slit

172, 174: end

176: Ring

178: Spring

180, 180A: barrel

182, 182A: End

184: chip

200: Dart

202: Flight

204: Shaft

204A, 206A, 206B, 208A: End

206: Valenore

208: Chip

210: Rubbing member

212: Elastic body

214, 216: Connection part

300: chip

302: Tip

304..End

Section 306:

BEST MODE FOR CARRYING OUT THE INVENTION

[0022] Although there may be many embodiments of the present invention, an appropriate number of examples are shown and described in detail herein.

Example 1

First, Embodiment 1 of the present invention will be described with reference to FIG. 1 and FIG. In this example, a soft dart generally has a tip formed of plastic (salley, sardine) at the tip. In this example, the dart chip of the present invention is applied. Fig. 1 (A) is a perspective view showing the external appearance of the chip (or no point) of this embodiment, Fig. 1 (B) is an external perspective view of a duck using the chip of this embodiment, and Fig. 1 (C). Fig. 3 is a cross-sectional view of Fig. 1 (A) taken along line # A- # A and viewed in the direction of the arrow. FIG. 2 is a view showing a modification of the chip of this embodiment, FIG. 2 (A) is a plan view, and FIGS. 2 (B) to 2 (D) are sectional views. As shown in FIG. 1 (B), the dart 50 is composed of a tip (or point) 10 that is a tip portion that fits into a hole in the board, a barrel 52, a shaft 54, and a flight 56.

First, the example shown in FIGS. 1A to 1C will be described. The tip 10 shown in FIG. 1 (A) has a narrow tip 12 side, and a node 16 having a large diameter is provided in the middle portion. Section 16 may be provided as necessary. The other end portion 14 is formed with a screw portion so as to be detachable from the end portion of the barrel 52. Further, a plurality of grooves 18 are formed on the surface of the chip 10 along the longitudinal direction from the tip 12 to the other end 14 side. As shown in the cross-sectional view of FIG. 1 (C), in this embodiment, four grooves 18 are formed, so that the cross section on the tip side of the chip 10 has a shape other than a circle. The area of contact with holes on the board not shown is decreasing. The circle in the present invention includes not only a perfect circle but also a circle that is slightly elliptical due to a manufacturing error. The groove 18 is provided to increase the durability of the chip 10 and to make it easier to remove the board force. As shown in the chip 10A in FIG. 2 (A), the groove 18 is provided between the tip 12 and the node 16. May be provided only. In other words, it is only necessary to be provided at least in a portion that contacts the hole of the board. As materials for forming the chips 10 and 10A, various known hard plastic materials can be used so as not to damage the board. Such a chip 10 (or 10A) is connected to the barrel 52 and, together with the shaft 54 and the flight 56, constitutes the duck 50.

Next, the operation of the present embodiment will be described. Throw the dart 50 with the tip 10 (or 10A) at the tip toward a board (not shown), and if the tip 12 side fits into one of the numerous holes provided on the board, the dart 50 is targeted. It becomes stabbed. At this time, since the groove 18 is provided on the surface of the chip 10, it shrinks at the moment of being stabbed into the board, and after it is stabbed, a force to spread is applied, so that it falls out. On the other hand, when removing from the board Since the contact area with the board is reduced by the formation of the groove 18, it can be easily removed from the board without requiring a strong force.

Thus, according to the first embodiment, since the plurality of grooves 18 are provided along the longitudinal direction on the surface of the chip 10 (or 10A), the following effects are obtained.

(1) Since the cross section of the contact portion with the board has a shape other than a circle, the burden on one point is reduced and the durability of the chip 10 is improved.

(2) Since the durability is improved by the shape of the chip 10, it is not necessary to use a hard material, the burden on the duck board is reduced, and the durability of the board is also improved.

(3) Since the contact area with the board is small, it is possible to pull out the dart without requiring a strong force.

<Modified Example of Embodiment 1> FIGS. 2B to 2D show cross sections of modified examples of the present embodiment. These cross-sectional views correspond to the cross section of FIG. A chip 10B shown in FIG. 2 (B) is an example in which a groove 18B deeper than the chip 10 is formed. The chip 10C shown in FIG. 2 (C) is an example in which a relatively large number of relatively shallow grooves 18C are uniformly provided on the entire surface. The chip 10D shown in FIG. 2 (D) has a substantially hexagonal cross section. In any of the chips 10B to 10D, the basic operation and effect are the same as those of the chips 10 to 10A shown in FIG. 1 or 2A described above.

Example 2

Next, Embodiment 2 of the present invention will be described with reference to FIG. 3 (A). FIG. 3A is a perspective view showing the appearance of the chip of this example. In the first embodiment described above, a plurality of substantially linear grooves are provided in the longitudinal direction from one end of the chip to the other end. However, in the chip 20 of the second embodiment, the tip 22 is connected to the other end. A plurality of grooves 28 are formed in a spiral manner over 24. The functions and effects of the present embodiment are the same as those of the first embodiment described above. The groove 28 may be provided only between the node 26 and the tip 22 as in the first embodiment.

Example 3

Next, Embodiment 3 of the present invention will be described with reference to FIGS. 3 (B) and 3 (C). Fig. 3 (B) is a plan view showing the appearance of this embodiment, and Fig. 3 (C) is a cross-sectional view of Fig. 3 (B) taken along line # B- # B and viewed in the direction of the arrow. is there. The tip 30 of this embodiment is hung from the tip 32 to the node 36. A plurality of depressions 38 are provided at appropriate intervals. In Examples 1 and 2 described above, a continuous groove from the tip force of the tip to the other end side is formed. Even if the recess 38 or the hole is provided, the same effect as in the first embodiment can be obtained. Of course, the recess 38 may be provided from the node 36 to the end 34 side.

Example 4

Next, Embodiment 4 of the present invention will be described with reference to FIG. The present embodiment is applicable not only to soft darts but also to darts generally composed of chips (or points), barrels, shafts, and flights. Fig. 4 (A) is an external perspective view of a dart using the shaft of this embodiment, Fig. 4 (B) is an external perspective view of the shaft, and Fig. 4 (C) is an enlarged view of the mounting portion of the shaft. FIG. FIG. 4 (D) is a perspective view showing a state before connection between the mounting portion and the connecting portion of the shaft, and FIG. 4 (E) is a perspective view showing the angular force different from (A).

[0031] The shaft 100 of the present embodiment is for detachably attaching a fly 122 in which four blade pieces 122A to 122D are opened in a substantially cross shape, and a mounting portion 112 to which the flight 122 is attached. And a connecting portion 124 for connecting the mounting portion 112 to the barrel 180. As shown in FIG. 4B, the shaft 100 has a substantially cylindrical shape as a whole. In addition, as shown in FIG. 4C, the mounting portion 112 is such that the holding pieces 112A to 112D each having a shape obtained by dividing the cylinder into four in the axial direction open in a substantially cross shape with the one end portion 114 as the center. It becomes. The other end portions 118A to 118D of these sandwiching pieces 112A to 112D are formed narrower than the end portion 114 side, and when the sandwiching pieces 112A to 112D are closed, as shown in FIG. The end portion 118 is detachably connected to one end portion 126 of the connecting portion 124. In the example shown in the figure, the mounting portion 112 and the coupling portion 124 are connected by fitting the convex end portion 118 and the concave end portion 126, but they are connected by various other known mechanisms. It's okay. The sandwiching pieces 112A to 112D are set so as to be substantially the same as or slightly longer than the axial length of the partial force flight 122 excluding the end portions 118A to 118D, and the surfaces 115 and 116 that are substantially orthogonal to each other. The surface of the flight 122 is sandwiched and fixed by these surfaces. The other end 128 of the connecting portion 124 is attached to and detached from the end 182 of the barrel 180. Connected to the expression. The shaft 100 and the barrel 180 are connected by, for example, screwing of the screw portions formed at the respective end portions 128 and 182 as shown in the figure. .

[0032] When the sandwiching pieces 112A to 112D as described above are closed, the convex end portion 118 for connecting to the connecting portion 124 and the groove 120 for sandwiching the surface of the flight 122 (see FIG. 4 (B)) Is formed. For example, the blade piece 122A is fixed from both surfaces by the sandwiching pieces 112A and 112D, and the blade piece 122B is fixed from both surfaces by the sandwiching pieces 112A and 112B. The other blade pieces 122C and 122D are similarly fixed from both sides.

Next, the assembly procedure of the present embodiment will be described. First, as shown in FIG. 4 (C), the center of the flight 122 is aligned with the center of the mounting portion 112 (that is, the end portion 114) opened in a substantially cross shape. Then, the sandwiching pieces 112A to 112D are closed, and the blade pieces 122A to 122D are sandwiched from both sides to fix the flight 122. Next, as shown in FIG. 4 (D), the end portion 118 of the mounting portion 112 and the end portion 126 of the connecting portion 124 are connected, and finally, as shown in FIG. The part 182 is connected to the other end 128 of the connecting part 124. A tip 184 shown in FIG. 4 (A) is connected in advance to the tip of the barrel 180. When exchanging the flight 122, after removing the connecting portion 124 from the mounting portion 112, the clamping pieces 112A to 112D are opened and replaced.

Thus, according to Example 4, the following effects are obtained.

(1) Since all the surfaces of the flight 122 can be fixed over the entire range in the axial direction of the flight 122 by the sandwiching pieces 112A to 112D, the flight 122 is not easily detached from the shaft 100.

(2) Since the blade pieces 122A to 122D of the flight 122 can be kept in a substantially cross-shaped open state, the stability during the flight of the duck is increased.

Example 5

Next, Embodiment 5 of the present invention will be described with reference to FIG. Note that the same reference numerals are used for components that are the same as or correspond to those in the fourth embodiment described above (the same applies to the following embodiments). FIG. 5A is an external perspective view of a duck using the shaft of this embodiment, and FIG. 5B is an external perspective view of the shaft. Fig. 5 (C) shows the state where the shaft is expanded inside. Fig. 5 (D) is a perspective view of the shaft in an unfolded state as seen from the outside force.

[0036] The shaft 130 of the present embodiment is substantially cylindrical as in the fourth embodiment, and the cylinder is divided into four in the axial direction as shown in Figs. 5 (C) and (D). The sandwiching pieces 130A to 130D having the above shapes are configured to open in a substantially cross shape with the one end portion 132 as the center. The end portions 138 8 to 1380 of these sandwiching pieces 1308 to 1300 are formed narrower than the end portion 132 side, and when the sandwiching pieces 130A to 130D are closed, the end portion 138 becomes the end portion of the barrel 180A. Removably connected to 182A. In the example shown in the figure, the connection is made by fitting the convex end 138 and the concave end 182A. In the present embodiment, the sandwiching pieces 130A to 130D have portions except for the end portions 138A to 138D longer than the axial length of the flight 122, so that an appropriate interval is provided from the end portion 138 to the flight 122. It has become. That is, the partial force from the end portion 138 to the flight 122 corresponds to the connecting portion 124 of the fourth embodiment described above. The sandwiching pieces 130A to 130D have surfaces 134A and 136A that are substantially orthogonal to each other, and the surface of the flight 122 is fixed by these surfaces.

[0037] Furthermore, in this embodiment, steps 140A to 140D are formed in the sandwiching pieces 130A to 130D. These steps 140A to 140D change the thickness of the grooves 142 and 144 shown in FIG. 5 (B) when the sandwiching pieces 130A to 130D are closed, and position the flight 122 based on the difference in thickness. Is. In the example shown in the drawing, the force at which the flight 122 is moved toward the end 132 side of the shaft 130 can change the fixing position of the flight 122 by changing the positions of the steps 140A to 140D as necessary. According to the present embodiment, in addition to the operation 'effect of the fourth embodiment described above, an effect that the fixed position of the flight 122 can be changed is obtained. Further, since the shaft 130 does not have to be a two-part configuration including a mounting portion and a connecting portion, the number of parts is reduced, and manufacturing and assembly are facilitated.

Example 6

Next, Embodiment 6 of the present invention will be described with reference to FIG. FIG. 6A is an external perspective view of a dart using the shaft of this embodiment, and FIG. 6B is an external perspective view of the shaft. FIGS. 6 (C) to 6 (E) are perspective views showing how the flight is attached to the shaft, and show a state seen from an angle different from FIGS. 6 (A) and 6 (B). In Examples 4 and 5 described above, the groove provided on the shaft is formed with the barrel side force directed toward the tip. The embodiment is an example in which the groove is formed by directing the tip end of the shaft toward the barrel side.

[0039] The shaft 150 of the present embodiment is substantially cylindrical, and as shown in FIG. 6 (C), four slits 150A to 150D force along the axial direction from one end 154 side to the vicinity of the center. Is formed. These slits 150A to 150D are formed in a substantially cross shape so as to divide the end portion 154 side of the shaft 150 into four, and a flight 122 is inserted therein. A cap 156 having a fitting portion 158 and a head portion 160 is detachably provided in the opening on the end portion 154 side. The other end of the shaft 150 can be attached to the other end of the shaft 150, or the end of the nore 180 can be attached or detached. The functions and effects of the present embodiment are the same as those of the fourth embodiment described above, but the fixing position of the flight 122 can also be adjusted by adjusting the depths of the slits 150 to 150D.

Example 7

Next, Embodiment 7 of the present invention will be described with reference to FIG. FIGS. 7A and 7B are external perspective views showing the shaft of this embodiment. First, in the example shown in FIG. 7 (A), the shaft 170 is formed from the end 174 side of one of the four slits 170A to 170D along the axial direction to the vicinity of the center, as in the sixth embodiment. (Slits 170C and 170D are not shown). These slits are formed in a substantially cross shape so as to divide the end portion 174 side into four, and the flight 122 is inserted therein. Then, by fitting a ring 176 formed of, for example, rubber on the outer peripheral surface on the end 174 side, the flight 122 is prevented from being detached. Alternatively, as in the example shown in FIG. 7B, a spring 178 may be attached to the outer peripheral surface on the end portion 174 side to prevent the flight 122 from coming off.

Example 8

Next, Embodiment 8 of the present invention will be described with reference to FIG. FIG. 8 (A) is an external perspective view of the duck of this embodiment, FIG. 8 (B) is an exploded perspective view of this embodiment, and FIG. 8 (C) is an exploded perspective view of a modification of this embodiment. As shown in FIGS. 8 (A) and 8 (B), the dart 200 of this embodiment is provided between the shaft 204 and the nozzle 206, the force of the fly 202, the shaft 204, the nozzle 206, and the tip 208. The stagnation member 210 is formed. As shown in FIG. 8 (B), the squeeze member 210 is connected to both ends of an elastic body 212 such as rubber, for example, a connecting portion 214 detachably connected to the end portion 204A of the shaft 204, and the barrel 206. Removable on end 206A A connecting portion 216 to be connected is provided. The connecting portions 214 and 216 are formed of, for example, a synthetic resin or a metal, but the entire stagnation member 210 may be integrally formed of, for example, rubber or other flexible material. It should be noted that the squeezing member 210, the shaft 204, and the parallel 206 are attached and detached in the example shown in the figure by force fitting by screwing of the threaded portion or by other known mechanisms. ,.

Next, the operation of the present embodiment will be described. The tip 208 is a soft dart or a hard duck, and a force in which plastic or metal is used. Usually, the shaft 204 and the barrel 206 are made of metal or the like. If you throw a dart without wearing the kneading member 210, the shaft 204 or barrel 206 will not work if it hits a duck that has already been stabbed. Sometimes. However, by providing the stagnation member 210 between the shaft 204 and the barrel 206, the shaft 204 can be moved relative to the barrel 206 by the flexibility of the elastic body 212 even when the subsequent duck 200 hits. As a result, it is less likely to play the subsequent dart 200, and stable play can be achieved. Further, as shown in FIG. 8C, the stagnation member 210 may be mounted so as to be sandwiched between the end portion 206 B of the barrel 206 and the end portion 208 A of the chip 208. This portion may be provided with a weight (or weight) for weight adjustment depending on the player, but the weight of the duck 200 may be adjusted by the kneading member 210. In this case, for example, the stagnation member 210 as a whole or the elastic body 212 can be made of heavy rubber, or metal can be used for the connecting portions 214 and 216.

Thus, according to Example 8, there are the following effects.

(1) Since the squeezing member 210 made of the elastic body 212 is detachably mounted between the shaft 204 and the nozzle 206 or between the nozzle 206 and the tip 208, it is already stuck. Even when a subsequent duck hits the duck 200, the elastic body 212 is bent, so that it is possible to reduce the bounce of the subsequent duck.

(2) By installing the kneading member 210 instead of the weight adjustment weight (weight), it is possible to reduce the weight adjustment and the subsequent dulling off with one additional part.

[0044] The present invention has many embodiments, and various modifications can be made based on the above disclosure. Is possible. For example, the following are included.

(1) The shape, size, and material shown in the above embodiment are examples, and may be appropriately changed as necessary. For example, the cross-sectional shape of the tip portion of the chip may be a shape other than a circle, such as a polygon, such as a triangle, a rectangle, or an octagon, as well as a star or an ellipse, in addition to the above-described Examples 1 to 3. That's fine. In addition, as described above, a shape that is slightly elliptical due to a manufacturing error is not included in the shape other than the circle in the present invention. Further, for example, in the above-described embodiment, the shaft and barrel are substantially cylindrical, but a shape having a polygonal or elliptical cross section may be used.

[0045] (2) The number and length of the grooves 18 and 28 provided in the chips shown in the above-described embodiments 1 to 3, or the position and number of the recesses 38 are examples, so that the same effects can be obtained. It may be changed as appropriate. Further, a groove and a recess may be combined.

(3) The grooves and slits shown in Examples 4 to 7 are forces that fix all surfaces of the flight 122 over almost the entire range in the axial direction. This is also an example. As long as it can be fixed over a wide range in the axial direction, it may be sandwiched in any form. The wide range means at least about half the axial length of the blade.

(4) The upper and lower portions of the shaft in Embodiments 4 to 7 (portions where the flight 122 is not attached) are also examples, and may be appropriately changed as necessary, such as providing nodes. In addition, Examples 4 to 7 are applied to a force with a structure in which the shaft and the barrel are detachable, or a dart having a structure in which the shaft, the barrel, and the chip are integrated. You can do it.

(5) The cap 156 of the sixth embodiment, the ring 176 and the spring 178 of the seventh embodiment are examples, and the design may be changed as appropriate so as to achieve the same effect.

[0047] (6) In the eighth embodiment, the kneading member 210 is provided at any one of the duck 200, but it is mounted between the shaft 204 and the norrel 206, and between the barrel 206 and the tip 208. You may make it. Further, in the eighth embodiment, the squeezing member 210 is not prevented from being mounted separately by the force that also serves as the weight adjusting weight. Of course, the squeezing member 210 can be applied to a dart having a structure in which a shaft and a barrel are integrated or a chip and a barrel are integrated. In addition, the material constituting the stagnation member 210 is You may use the raw material which has well-known various softness | flexibility which is not limited to rubber | gum. Further, in the duck in which the shaft portion from the shaft to the tip is integrally formed, even if a part thereof is formed of a material that is more flexible than the other portions, the same as in the eighth embodiment. An effect is obtained.

(7) The connection method between the shaft and barrel, the connection method between the barrel and the tip, or the connection method between the rubbing member 210 and the shaft, barrel, and tip shown in the above embodiment is also an example, and the same effect is achieved. As described above, various known connection methods may be used.

Industrial applicability

[0048] According to the present invention, the tip part of the dart chip, that is, the cross section of the contact part with the board has a shape other than a circle, thereby improving the durability of the chip without using a hard material, It can be applied to soft dart applications using plastic chips because it does not damage the board as soon as it is removed from the board.

[0049] In addition, since all the planes of the flight are fixed over a wide range in the axial direction by a plurality of grooves or notches provided in the axial direction of the shaft, the flight is detached from the shaft. Applicable to shaft applications. In particular, since the flight shape can be maintained, it is suitable for dart applications that place importance on stable flight.

[0050] Furthermore, a flexible squeeze member is detachably attached to at least any portion of the force between the divided parts in a dart formed of parts that can be divided into a plurality of parts in the axial direction. Or, at least a part of the shaft part to which the flight is attached was made of a softer material than the other parts. For this reason, even when a subsequent duck hits a duck that has already been stabbed, it is less likely to play the subsequent duck, so it can be applied to the use of a dart for stable play.

Claims

The scope of the claims

[1] The tip is fitted into a hole provided in the board, and the other end is a chip that can be attached to and detached from the duck body.

A dart chip characterized in that a cross section of a portion in contact with the hole of the board has a shape other than a circle.

2. The dart chip according to claim 1, wherein at least one groove is provided along a longitudinal direction on a surface of a portion in contact with the hole of the board.

[3] The dart chip according to claim 1, wherein at least one or more holes or dents are provided on a surface of a portion in contact with the hole of the board.

[4] A dart tip according to any one of claims 1 to 3, wherein the dart tip according to the deviation is provided at the tip.

[5] A dart shaft to which the flight is detachably attached,

A plurality of grooves or notches formed in the axial direction of the dart shaft and capable of fixing all surfaces of the flight composed of a plurality of blade pieces over a wide range in the axial direction of the flight;

A dart shaft characterized by comprising.

[6] A dart shaft to which the flight is detachably attached,

A plurality of grooves or notches formed in the axial direction of the dull shaft, and capable of fixing all surfaces of the flight composed of a plurality of blade pieces over a wide range in the axial direction of the flight;

A fastener that is detachably provided at an end of the dull shaft, and closes the ends of the plurality of grooves or cuts;

A dart shaft characterized by comprising.

7. The dart shaft according to claim 5 or 6, wherein the plurality of grooves or notches have a step for determining a fixed position of the flight.

[8] A duck made up of a flight and a part that can be divided into multiple parts in the axial direction. Darts characterized by being detachable.

[9] The duck according to claim 8, wherein the stagnation member is formed of rubber.

[10] The duck according to claim 8 or 9, wherein the stagnation member also serves as a weight for weight adjustment.

[11] Darts characterized in that at least a part of the shaft part to which the flight is attached is formed of a softer material than other parts!