JP2005065801A - Cue for billiards - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cue for billiards with which the vibrations of the cue for the billiards can be artificially controlled. <P>SOLUTION: In the bar-shaped cue 1 for the billiards provided with a bar-shaped butt 3 where a hollow part 6 is formed and a bar-shaped shaft 2 connected with butt through joints 4 and 5, where the hollow part is formed, the thickness of the tip side area of the shaft is formed to be thinner than the thickness of the base end side area of the shaft. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a billiard cue. Specifically, the present invention relates to a bar-shaped billiard cue in which a bat and a shaft are connected via a joint.

The billiard cue is configured by detachably connecting a shaft and a bat, and both the shaft and the bat are conventionally formed by processing mainly a wooden material.
Hereinafter, a conventional billiard cue will be described with reference to the drawings.

FIG. 2 is a schematic diagram for explaining a conventional billiard cue. The billiard cue 101 shown here has a long thin shaft 102 that projects a ball (not shown) at the front and one end of the shaft. The rear part is formed of two parts, a bat 103 held by a billiard player.
These bats and shafts are provided with joints 104 and 105 for fastening their ends with screws, and a billiard cue is formed by connecting these joints. The billiard cue thus formed usually has a taper that is elongated from the butt side toward the shaft side.

Here, the billiard cue gives momentum to the ball by using the bending of the billiard cue itself at the moment of hitting the ball. Therefore, as described above, it is formed by processing a wooden material that can be obtained in a proper manner.
That is, for example, when a billiard cue is formed of a material that cannot be bent at all, such as an iron round bar, the amount of exercise given to the ball at the time of a shot is reduced. On the other hand, when the wooden billiard cue is processed into a shape that can be obtained excessively, the directionality of the ball at the time of shot is deteriorated. Therefore, in order to give an appropriate momentum to the ball at the time of a shot and to secure the directionality of the ball, it is necessary to have an appropriate level. To obtain an appropriate level, a wooden material is processed for billiards. Forming a queue.

  By the way, many techniques for improving the ease of use of billiard cues have been disclosed as follows.

For example, Patent Document 1 discloses “a billiard cue characterized in that the shaft and / or bat of the billiard cue is a rod-shaped body having a hollow portion”.
In Patent Document 1, the billiard cue is reduced in weight by forming a hollow portion, so that the billiard cue can be easily used even for women and children with relatively weak muscular strength.

Patent Document 2 states that “in a rod-shaped billiard cue structure in which a bat and a shaft are connected via a joint, a length of more than half is left inside the shaft from the joint side toward the tip side. A hollow hole formed in the hollow hole, and a reinforcing member for inserting a rod-shaped shaft core or injecting a curable resin into the hollow hole, thereby providing a joint side including the distal end of the shaft and the reinforcing member. In addition, a billiard cue structure characterized by being provided with various strengths is disclosed.
In Patent Document 2, a billiard cue structure is provided in which a shaft has both characteristics of hardness and elasticity and can be easily adjusted to the hardness intended by the player.

Further, in Patent Document 3, in a billiard cue in which a bat and a shaft are connected via a joint and extend in a rod shape, the first end portion connecting the bat and a second end portion facing the first end portion are provided. A shaft having a hollow hole extending from the first end to the second end in the center, a ferrule attached to the second end of the shaft, and a tip attached to the ferrule A first end extending to the first end, a predetermined distance from the second end, and extending to the middle of the hollow hole. A core member formed in a length with the second end, and in the hollow hole of the shaft, the first hollow hole in the pipe shape of the core member and the core member without the interposition Drilled from the second end toward the second end of the shaft Billiard cue "and the like is disclosed which is characterized by comprising communicating a second hollow hole defined.
In this patent document 3, a billiard cue is provided in which the overall taper, hardness, and weight can be finely adjusted to an ideal structure that is easy for the user to use.

As described above, various technologies have been disclosed for the purpose of improving the usability of the billiard cue. However, Patent Document 1 is a hollow portion formed for the purpose of weight reduction, and the vibration of the billiard cue is described below. Is not intended to be manipulated artificially. Nor is it intended to distribute weight in place.
Similarly, Patent Document 2 makes it possible to adjust to the hardness intended by the competitor, and Patent Document 3 makes it possible to finely adjust the taper, hardness, and weight. It is not an artificial operation, nor is it intended to distribute weight in place.

JP 2001-346932 A

JP 2002-65934 A

JP 2002-346023 A

By the way, as described above, since the billiard cue is formed by processing the wooden material, the degree of freedom in the internal design of the billiard cue is limited, and there has been a limit to technological innovation.
That is, on the premise that a billiard cue is formed by processing a wooden material, the reason for securing the strength and the manufacturing method are limited to cutting, and the degree of freedom in the internal design of the billiard cue is poor, and the external shape Since there is only a method for generating vibration by changing the temperature, there has been a limit to dramatic technological innovation.

The present invention has been made in view of the above points, and an object of the present invention is to provide a billiard cue capable of artificially operating the vibration of the billiard cue.
It is another object of the present invention to provide a billiard cue capable of increasing the amount of exercise given to a ball during a shot by concentrating the weight on the grip portion.

  In order to achieve the above object, a billiard cue according to the present invention comprises a rod-shaped bat formed with a hollow portion and a rod-shaped shaft formed with a hollow portion connected to the bat via a joint. In the rod-shaped billiard cue provided, the thickness of the distal end side region of the shaft is made thinner than the thickness of the proximal end side region of the shaft.

  Here, the strength and rigidity of the distal end region of the shaft can be reduced by forming the thickness of the distal end region of the shaft thinner than the thickness of the proximal end region of the shaft.

  Further, in a rod-shaped billiard cue comprising a rod-shaped bat formed with a hollow portion and a rod-shaped shaft formed with a hollow portion connected to the bat via a joint, the meat in the tip side region of the bat The thickness is made thinner than the thickness of the base end side region of the bat.

  Here, by forming the thickness of the distal end side region of the bat thinner than the thickness of the proximal end region of the bat, the weight can be concentrated on the grip portion.

In the billiard cue to which the present invention is applied, the strength and rigidity of the tip end region of the shaft can be reduced, and vibration can be generated in the tip end region of the shaft. Can be operated.
Further, in the billiard cue to which the present invention is applied, the weight can be concentrated on the grip portion, so that it is possible to increase the amount of exercise given to the ball during a shot.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings to provide an understanding of the present invention.

FIG. 1 is a schematic cross-sectional view for explaining an example of a billiard cue to which the present invention is applied. The billiard cue 1 shown here has a ball ( It is formed of two parts: a long thin shaft 2 that projects (not shown) and a bat 3 that is attached to one end of the shaft and is gripped by a billiard player by hand.
Similarly to the conventional billiard cue described above, the shaft and the bat are provided with a joint (1) 4 and a joint (2) 5 whose ends are fastened with screws, and the billiards are connected by connecting the joints. Forming a queue. The billiard cue formed in this way has a taper that is elongated from the butt side toward the shaft side.

  Further, the shaft is a rod-shaped body made of a metal material such as an iron alloy and the hollow portion 6 is formed by cutting, and the thickness of the metal material forming the distal end side region of the shaft is equal to the proximal end side region of the shaft. It is formed so as to be thinner than the film thickness of the metal material forming the film.

  The bat is a rod-shaped body made of a metal material such as an iron alloy and having a hollow portion formed by cutting. The thickness of the metal material forming the distal end region of the bat is equal to the proximal end region of the shaft. It is formed to be thinner than the thickness of the metal material to be formed.

Here, the material of the shaft can maintain sufficient strength even if the thickness of the material that forms the tip side region of the shaft is reduced to such an extent that vibration can be generated in the tip side region of the shaft. If it exists, it is not necessarily required to be a metal material. However, considering that the strength can be ensured even if the thickness is reduced and the processing for reducing the thickness is easy, the shaft material is preferably a metal material.
In addition, in the case where the shaft is formed of wood that is mainly used as a material for conventional billiard cues, the above-mentioned patent document is used to reinforce the reduction in the strength of the shaft due to the formation of the hollow portion. It is necessary to adopt a multilayer structure as described in No. 1 or to inject a reinforcing member into the hollow portion as described in Patent Document 2 and Patent Document 3 described above.

As with the shaft material described above, the bat material is concentrated to the grip portion on the proximal end side of the bat so that the momentum applied to the ball at the time of the shot can be increased. Even if the thickness of the material forming the distal end side region is reduced, the metal material is not necessarily required as long as sufficient strength can be maintained. However, considering that the strength can be maintained even when the thickness is reduced and the processing for reducing the thickness is easy, it is preferable that the material of the bat is a metal material.
In addition, when the bat is formed of wood mainly used as the material of the conventional billiard cue, in order to reinforce the decrease in the strength of the bat due to the formation of the hollow portion, As in the case, it becomes necessary to adopt a multilayer structure or to inject a reinforcing member into the hollow portion.

  Moreover, in the example of the billiard cue to which the present invention is applied, the shaft is formed by cutting, but the shaft is a rod-shaped body in which a hollow portion is formed and a metal material that forms the tip side region thereof It is sufficient that the film thickness is thinner than the film thickness of the metal material forming the base end side region, and it is not necessarily formed by cutting, for example, by casting. It does not matter.

  Similarly, the bat is also a rod-shaped body having a hollow portion, and the film thickness of the metal material forming the tip end region is smaller than the film thickness of the metal material forming the base end region. It is sufficient if it is formed, and it is not necessarily formed by cutting. For example, it may be formed by casting or the like.

  In the billiard cue to which the present invention is applied, by forming the film thickness of the metal material forming the distal end region of the shaft smaller than the film thickness of the metal material forming the proximal end region of the shaft, Reduce the vibration of billiard cues by artificially changing the thickness of the metal material in the part where you do not want to vibrate. Can be operated.

  In addition, the vibration management of the conventional billiard cue can be obtained only by changing the taper degree of the outer shape of the billiard cue, and the billiard cue has an unstable vibration level and an equivalent amount of vibration. Although it was difficult to produce, the billiard cue to which the present invention is applied enables stable production of a billiard cue having the same amount of vibration.

  Furthermore, by forming the film thickness of the metal material forming the distal end region of the bat thinner than the film thickness of the metal material forming the proximal end region of the bat, the weight is concentrated on the grip portion as a result, When the weight is concentrated at the hand, the operability (direction) is stabilized, and the momentum applied to the ball at the time of the shot can be increased by the concentration of the weight.

It is a schematic diagram for demonstrating the conventional billiard cue. It is a schematic diagram for explaining an example of a billiard cue to which the present invention is applied.

Explanation of symbols

1 Billiard cue 2 Shaft 3 Butt 4 Joint (1)
5 Joint (2)
6 Hollow part

Claims (5)

A rod-shaped bat formed with a hollow portion;
In a bar-shaped billiard cue comprising the bat and a bar-shaped shaft formed with a hollow portion connected via a joint,
The billiard cue is characterized in that the thickness of the distal end region of the shaft is thinner than the thickness of the proximal region of the shaft. 2. The billiard cue according to claim 1, wherein a wall thickness of a distal end side region of the bat is thinner than a wall thickness of a proximal end side region of the bat. A rod-shaped bat formed with a hollow portion;
In a bar-shaped billiard cue comprising the bat and a bar-shaped shaft formed with a hollow portion connected via a joint,
The billiard cue is characterized in that the thickness of the tip side region of the bat is thinner than the thickness of the base side region of the bat. The billet cue according to claim 1, wherein the bat and the shaft are made of a metal material. The billiard cue according to claim 4, wherein the hollow portion is formed by cutting or casting.

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