JP5298067B2 - Billiard cue - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a billiard cue having a simple structure but hard to bend due to aging. <P>SOLUTION: The billiard cue 101 has a shaft 102 and a butt 103, and the shaft and butt are formed of a body 112 and a reinforcement material 111. The body 112 is formed by joining the side surfaces of a plurality of elongated materials 110. The body 112 covers the side surfaces of the reinforcement material 111. The elongated material 110 is provided with a curved surface 113 exposed to the outside of the body 112, and joints 114 adjacent to the curve 113 and joined to other joints to form the body 112. Further, the elongated material 110 is provided with a groove 115 extending in the longitudinal direction of the elongated material 110 and opening toward the joint 114. The grooves 115 form a closed cross-sectional shape 116 in a cross-sectional view of the body 112 having been joined. The reinforcement material 111 has a cross-section having the same shape as the cross-sectional shape 116. <P>COPYRIGHT: (C)2012,JPO&amp;INPIT

Description

  The present invention relates to a billiard cue.

  Billiard cues used in billiards are made of various materials. Among them, wooden billiard cues are popular because of their tactile sensation, control performance at the time of hitting, and the beauty of their appearance. However, in general, wood bends in the direction of annual rings due to aging. For this reason, wooden billiard cues are inevitably deformed no matter how highly accurate they are produced. In this regard, an invention of a billiard cue made so as not to bend is disclosed in Patent Document 1 (for example, Patent Document 1).

  The billiard cue described in Patent Document 1 is a center having a cross-shaped cross-section so that square wood 20 is produced from raw wood 10 and intersects at a right angle at the center of the produced square wood 20 and the end contacts the edge of the square wood. Only the member 21 is left, the peripheral members 22, 23, 24, and 25 are cut in the length direction of the square member, and the peripheral members 22, 23, 24, and 25 are moved to the central member 21 in a direction opposite to the annual rings of the central member 21. Made by rejoining. According to Patent Document 1, the joined square member 20 ′ is deformed by the original square member 20, that is, the deforming force of the central member 21 due to the directionality of the annual rings and a plurality of peripheral members 22, 23, 24. , 25 cancel each other and no deformation occurs, and the straight state can be maintained.

JP-T-2006-528020

  In the billiard cue described in Patent Document 1, the center member 21 and the peripheral members 22, 23, 24, and 25 appear alternately in the circumferential direction in appearance. For this reason, it takes time and effort to smooth the surface of the billiard cue.

  The present invention has been made in view of the above points, and an object of the present invention is to make a billiard cue difficult to bend even with aging even though it has a simple structure.

To solve the above problems, the billiard cue
A body which is formed by joining the side faces of the multiple long material,
A reinforcing material that is long and has a side surface covered by the body;
With
The front Symbol long member, and a curved portion appearing in the appearance of the body, and a joint portion to be joined together to form said body adjacent said curved surface portion, extends in the longitudinal direction of the long material wherein A groove opening on the joint side is provided,
Before SL groove forms a cross-sectional shape that is closed in a cross-sectional view of the body after the joining,
The shape of the cross section of the prior SL reinforcement Ri same der and the cross section shape,
The cross-sectional figure has a plurality of protrusions extending radially,
The convex portion has an inverted wedge shape that becomes wider as the distance from the radiation center of the plurality of convex portions increases.
Or
A main body formed by joining side surfaces of a plurality of long materials;
A reinforcing material that is long and has a side surface covered by the body;
With
The long material includes a curved surface portion that appears in the appearance of the main body, a joint portion that is adjacent to the curved surface portion and is joined to form the main body, and the longitudinal material that extends in a longitudinal direction of the long material. A groove opening on the part side,
The groove portion forms a closed cross-sectional figure in a cross-sectional view of the main body after joining,
The cross-sectional shape of the reinforcing material is the same as the cross-sectional figure,
The long material forms a retaining portion that prevents the reinforcing material from slipping out from the opening on the joint portion side in the groove portion .

  According to the present invention, the reinforcing material enters the groove portion formed in each long material, the reinforcing material prevents the long material from being deformed, and the billiard cue is not easily bent even with aging even though it has a simple structure.

It is a front view of a billiard cue in a first embodiment. It is a perspective view for demonstrating the cross-sectional structure of a bat (billiard cue) in 1st embodiment. It is a perspective view of a reinforcing material in a first embodiment. It is a perspective view of the elongate material in 1st embodiment. (A) is a perspective view of a reinforcing material in the second embodiment. (B) is a perspective view of a long material in a second embodiment. (A) is a perspective view for demonstrating the cross-section of a bat (billiard cue) in the 1st modification. (B) is a perspective view of a reinforcing material in the first modification. (C) is a perspective view of a reinforcing material of another shape in the first modification. (A) is a perspective view for demonstrating the cross-section of a bat (billiard cue) in the 2nd modification. (B) is a perspective view of a reinforcing material in the second modification. (C) is a perspective view of a reinforcing material of another shape in the second modified example. (A) is a perspective view for demonstrating the cross-section of a bat (billiard cue) in the 3rd modification. (B) is a perspective view of a reinforcing material in the third modification. (C) is a perspective view of a reinforcing material of another shape in the third modification. (A) is a perspective view for demonstrating the cross-section of a bat (billiard cue) in the 4th modification. (B) is a perspective view of a reinforcing material in the fourth modification. (C) is a perspective view of a reinforcing material of another shape in the fourth modified example. (A) is a perspective view for demonstrating the cross-section of a bat (billiard cue) in the 5th modification. (B) is a perspective view of a reinforcing material in the fifth modification. (C) is a perspective view of a reinforcing material of another shape in the fifth modification. It is a disassembled perspective view of the bat (billiard cue) in the state before connecting a long material and a reinforcing material in a third embodiment. (A) is sectional drawing of the main body in 4th embodiment. (B) is sectional drawing of the reinforcing material in 4th embodiment. (A) is sectional drawing of a main body in the modification of 4th Embodiment. (B) is sectional drawing of the reinforcing material in the modification of 4th Embodiment.

  One embodiment will be described with reference to FIGS. 1 to 4. For convenience of explanation, this embodiment is referred to as a first embodiment. FIG. 1 is a front view of the billiard cue 101. The billiard cue 101 has a shaft 102 and a bat 103, is long, and becomes thinner toward the tip.

  The shaft 102 is located on the tip side of the billiard cue 101. The length of the shaft 102 is substantially half of the length of the billiard cue 101. A ferrule 104 and a tip 105 are attached to the tip of the shaft 102.

  The bat 103 is located on the rear end side of the billiard cue 101. The length of the bat 103 is approximately half the length of the billiard cue 101. A grip 106 is provided on the outer periphery of the middle of the bat 103. A butt cap 107 and a bumper 108 are provided at the rear end of the bat 103.

  The shaft 102 and the bat 103 are connected by a connecting portion 109. The connecting portion 109 includes a joint pin, a joint insert, a joint collar, and a joint ring.

  Hereinafter, the structure of the bat 103 will be described with reference to FIGS. Since the structure of the shaft 102 is the same as that of the bat 103, the description thereof is omitted.

  FIG. 2 is a perspective view for explaining a cross-sectional structure of the bat 103. FIG. 3 is a perspective view of the reinforcing member 111. FIG. 4 is a perspective view of the long material 110. The bat 103 is a long length composed of a plurality of long materials 110 and a reinforcing material 111, and a cross section perpendicular to the longitudinal direction has a perfect circle shape, and an outer peripheral surface has a tapered shape. Note that the bat 103 may be cylindrical.

  The long material 110 is a long member made of wood. For example, hard wood such as maple, kokutan (ebony), rosewood or the like is used as the long material 110. Side surfaces (joining portions 114 described later) of the plurality of long materials 110 are joined together by an adhesive to form the main body 112. In the present embodiment, the cross-sectional shape of the long material 110 is a sector shape with a central angle being a right angle. In the present embodiment, four long members 110 are joined to form the main body 112.

  The long material 110 is provided with a curved surface portion 113, a joint portion 114, and a groove portion 115. The curved surface portion 113 appears on the appearance of the main body 112. The joining portion 114 is provided on the long material 110 adjacent to the curved surface portion 113. The joints 114 are joined together to form the body 112. The groove 115 extends in the longitudinal direction of the long material 110. The groove 115 opens to the joint 114 side. In the present embodiment, the groove 115 extends from the center point of the sector toward the curved surface 113.

  The groove 115 forms a closed cross-sectional figure 116 in a cross-sectional view of the main body 112 formed by joining the long material 110. In the present embodiment, the cross section of the groove 115 is formed in a “U” shape. And in this Embodiment, the cross-sectional figure 116 formed of the groove part 115 is a cross shape.

  The reinforcing material 111 is long and the side surface thereof is covered with the main body 112. The reinforcing material 111 is made of, for example, hard wood, bamboo, plastic, or metal. The cross-sectional shape of the reinforcing material 111 is the same as the cross-sectional figure 116 formed by the groove 115. In the present embodiment, the cross-sectional shape of the reinforcing material 111 is a cross shape.

  The bat 103 is formed by applying an adhesive to the inner surfaces of the joint portions 114 and the groove portions 115 of all the long materials 110 and fitting the groove portions 115 of the respective long materials 110 into the reinforcing material 111. The shaft 102 is formed in the same manner as the bat 103. Then, the bat cap 107 and the bumper 108 are attached to the bat 103, the ferrule 104 and the tip 105 are attached to the shaft 102, and the connecting portion 109 is provided at the connecting portion between the shaft 102 and the bat 103, whereby the billiard cue 101 Is formed. In the billiard cue 101 thus formed, when each long material 110 is bent so as to be inclined with respect to the longitudinal direction, the reinforcing material 111 that has entered the groove 115 deforms the long material 110 due to the bending. prevent. Therefore, the billiard cue 101 has a simple structure, but is difficult to bend even with aging. Further, in the present embodiment, the cross-sectional shape of each long material 110 is a fan shape, and its central angle is a right angle. For this reason, the process which cuts out a timber and makes it the elongate material 110 becomes easy.

  Another embodiment will be described with reference to FIGS. 5 (a) and 5 (b). For convenience of explanation, this embodiment is referred to as a second embodiment. In this case, the same reference numerals are used for the same parts as those in the first embodiment, and description thereof is also omitted.

  FIG. 5A is a perspective view of the reinforcing material 211. FIG. 5B is a perspective view of the long material 210. In the present embodiment, the shape of the cross section of the reinforcing member 211 is a cross shape like a shuriken, and each convex portion 218 extending radially is tapered as the distance from the radial center increases. In this embodiment, the cross section of the groove portion 215 is formed in a “<” shape, and the cross-sectional figure 216 formed by the groove portion 215 has a cross shape like a star.

  Also in the billiard cue 201 of the present embodiment, when each long material 210 is bent so as to be inclined with respect to the longitudinal direction, the reinforcing material 211 entering the groove portion 215 prevents the long material 210 from being deformed by the bending. . Therefore, the billiard cue 201 has a simple structure, but is difficult to bend even with aging. Furthermore, in the billiard cue 201 of this embodiment, since the cross-sectional shape of the groove 215 is simple, the manufacturing process of the billiard cue 201 can be simplified.

  Modifications of the first embodiment and the second embodiment will be described with reference to FIGS. 6 (a) to 10 (c). For convenience of explanation, the billiard cue 301 shown in FIGS. 6A to 6C is referred to as a first modification. The billiard cue 401 shown in FIGS. 7A to 7C is referred to as a second modification. The billiard cue 501 shown in FIGS. 8A to 8C is referred to as a third modification. The billiard cue 601 shown in FIGS. 9A to 9C is referred to as a fourth modification. The billiard cue 701 shown in FIGS. 10A to 10C is referred to as a fifth modification.

  6A to 10A are perspective views for explaining the cross-sectional structures of the bats 303, 403, 503, 603, and 703. 6 to 10, (b) is a perspective view of the reinforcing members 311, 411, 511, 611 and 711. 6 to 10, (c) is a perspective view of reinforcing members 311 ′, 411 ′, 511 ′, 611 ′, and 711 ′ having different shapes. As shown in each embodiment, the cross-sectional shape of the long members 310, 410, 510, 610, and 710 is a sector shape obtained by dividing a perfect circle into a plurality of pieces. The sector shape at this time may be a perfect circle divided equally (for example, FIG. 6A, FIG. 7A, FIG. 10A), and the perfect circle is not equally divided. It may be divided (for example, FIG. 8A and FIG. 9A). Further, as shown in each embodiment, the cross sections of the groove portions 315, 415, 515, 615, and 715 may be formed in a “U” shape or a “<” shape. If the cross-sectional shape of the reinforcing material matches the cross-sectional figures 316, 416, 516, 616, 716 formed by the grooves 315, 415, 515, 615, 715, a star shape (reinforcing materials 311, 411) is obtained. 511, 611, 711) or a shape (reinforcing materials 311 ′, 411 ′, 511 ′, 611 ′, 711 ′) such as a Gothic asterisk character (“*”).

  Another embodiment will be described with reference to FIG. For convenience of explanation, this embodiment will be referred to as a third embodiment. This embodiment will be described according to the first embodiment. The same reference numerals are used for the same parts as those in the first embodiment, and the description thereof is also omitted.

  FIG. 11 is an exploded perspective view of the bat 803 in a state before the long member 810 and the reinforcing member 111 are connected. In the present embodiment, the long material 810 has a semicircular shape in a sectional view. Further, the groove portion 815 provided in the joint portion 814 of the long member 810 extends in a bifurcated manner from the center point of the semicircle toward the curved surface portion 813. Further, the long material 810 is formed with a retaining portion 851 that protrudes a portion of the groove portion 815 that forms the edge of the opening on the joint portion 814 side and narrows the opening to the back side of the groove portion 815. . In this embodiment, the reinforcing member 111 is slidably fitted into the groove 815 from the end surface side of the long member 810.

  Even in the billiard cue 801 of this embodiment, when each long material 810 is bent so as to be inclined with respect to the longitudinal direction, the reinforcing material 111 that has entered the groove portion 815 prevents deformation of the long material 810 due to the bending. . Therefore, the billiard cue 801 has a simple structure, but is difficult to bend even with aging. Further, in the billiard cue 201 of the present embodiment, the reinforcing member 111 is prevented from being removed from the opening of the groove portion 815 on the joint portion 814 side by the retaining portion 851. For this reason, when the reinforcing material 111 is assembled to the long material 810, it is not necessary to press the long material 810, and the manufacturing process of the billiard cue 801 is further simplified.

  As a matter of course, the retaining portion 851 of the present embodiment includes the billiard cue 201 of the second embodiment and the billiard cues 301, 401, 501 of the first to fifth modifications. , 601 and 701.

  Another embodiment will be described with reference to FIGS. 12 (a) and 12 (b). For convenience of explanation, this embodiment will be referred to as a fourth embodiment. The present embodiment will be described according to the third embodiment, and the same reference numerals are used for the same parts as those of the third embodiment, and the description thereof is also omitted.

  FIG. 12A is a cross-sectional view of the main body 912. FIG. 12B is a cross-sectional view of the reinforcing material 911. In the present embodiment, the long material 910 has a semicircular shape in cross section. Further, the groove portion 915 provided in the joint portion 914 of the long material 910 extends in a bifurcated manner from the center point of the semicircle toward the curved surface portion 913. Further, the elongate member 910 is formed with a retaining portion 951 that protrudes a portion of the groove portion 915 that forms the edge on the joint portion 914 side and narrows the opening from the back side of the groove portion 915.

  In the present embodiment, each of the plurality of convex portions 918 extending radially in the cross-sectional figure 916 formed by the groove 115 has an inverted wedge shape that becomes wider as the distance from the radial center increases. The cross-sectional shape of the reinforcing material 911 is the same as the cross-sectional figure 816. The reinforcing material 911 is slidably fitted into the groove portion 915 from the end face side of the long material 910.

  Even in the billiard cue 901 of the present embodiment, when each long material 910 is bent so as to be inclined with respect to the longitudinal direction, the reinforcing material 911 that has entered the groove portion 915 prevents deformation of the long material 910 due to the bending. . Accordingly, the billiard cue 901 has a simple structure, but is difficult to bend even with aging. Furthermore, in the billiard cue 901 of the present embodiment, the groove portion 915 is formed in a reverse wedge shape in cross-sectional view, and the reinforcing material 911 enters this. For this reason, the reinforcing member 911 can be more reliably prevented from coming off from the opening on the joint portion 914 side of the groove portion 915.

  A modification of the fourth embodiment will be described with reference to FIGS. 13 (a) and 13 (b). FIG. 13A is a cross-sectional view of the main body 1012. FIG. 13B is a cross-sectional view of the reinforcing member 1011. In the billiard cue 1001, the formation of the groove 1015 so that the projection 1018 has a reverse wedge shape can be applied to the first embodiment, the second embodiment, and modifications thereof. The present invention can also be applied to a case where the long material 1010 is not divided into two forks. FIG. 13A and FIG. 13B show an application example to the long material 1010 in the case where the central angle of the sector in the sectional view is 120 degrees. Further, for example, a long material as shown in FIGS. 4, 6 (a), 7 (a), 6 (a), 8 (a), 9 (a), and 10 (a). For 110, 310, 410, 510, 610, and 710, the groove 1015 can be formed so that the cross section of the convex portion 1018 has an inverted wedge shape.

  In the embodiment described above and the modifications thereof, the reinforcing material extends to coincide with the axis of the billiard cue. However, the reinforcing material does not coincide with the axis of the billiard cue. You may arrange | position in parallel.

DESCRIPTION OF SYMBOLS 101 Billiard cue 111 Reinforcement material 112 Main body 113 Curved surface part 114 Joint part 115 Groove part 116 Sectional figure 218,918,1018 Protrusion part 851,951 Anti-removal part

Claims (6)

A main body formed by joining side surfaces of a plurality of long materials;
A reinforcing material that is long and has a side surface covered by the body;
With
The long material includes a curved surface portion that appears in the appearance of the main body, a joint portion that is adjacent to the curved surface portion and is joined to form the main body, and the longitudinal material that extends in a longitudinal direction of the long material. A groove opening on the part side,
The groove portion forms a closed cross-sectional figure in a cross-sectional view of the main body after joining,
The shape of the cross section of the reinforcement, Ri same der and the cross section shape,
The cross-sectional figure has a plurality of protrusions extending radially,
The convex portion has an inverted wedge shape that becomes wider as the distance from the radiation center of the plurality of convex portions increases.
Billiard cue. The shape of the cross section of the long material is a fan shape,
The groove extends from the fan-shaped center point toward the curved surface.
The billiard cue according to claim 1 . A main body formed by joining side surfaces of a plurality of long materials;
A reinforcing material that is long and has a side surface covered by the body;
With
The long material includes a curved surface portion that appears in the appearance of the main body, a joint portion that is adjacent to the curved surface portion and is joined to form the main body, and the longitudinal material that extends in a longitudinal direction of the long material. A groove opening on the part side,
The groove portion forms a closed cross-sectional figure in a cross-sectional view of the main body after joining,
The cross-sectional shape of the reinforcing material is the same as the cross-sectional figure,
The long material forms a retaining portion that prevents the reinforcing material from slipping out from the opening on the joint portion side in the groove portion.
Billiard cue. The cross-sectional figure has a plurality of protrusions extending radially,
The billiard cue according to claim 3 . The convex portion has an inverted wedge shape that becomes wider as the distance from the radiation center of the plurality of convex portions increases.
The billiard cue according to claim 3 or 4 . The shape of the cross section of the long material is a fan shape,
The groove extends from the fan-shaped center point toward the curved surface.
The billiard cue according to any one of claims 3 to 5.

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