JP2007209393A - Bat for billiards - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that a straight billiard bat made by planing a single material is easily curved over time to cause an error in aiming. <P>SOLUTION: The billiard bat is made by combining at least two members including a tip portion 3 and a rear portion 2, forming an insertion portion 21 projecting in the longitudinal direction from the body portion 20 in the center of the circular cross-section of one member 2 approximately to the other member 3 in length, forming an external thread 22 at the base portion of the insertion portion 21, forming an inserted hole 30 with an opening 32 in the center of the circular cross-section at the end face of the other member 3 correspondingly to the insertion portion 21 of the other member 2 in length and forming an internal thread 31 in a part of the inserted hole 30 and the position corresponding to the external thread 22, inserting the insertion portion 21 into the inserted hole 30 and threadably engaging the external thread 22 in the internal thread 31 to fit the two members. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a billiard cue bat formed by connecting a shaft and a bat.

  The billiard cue bat is positioned on the rear end side of the billiard cue and has a structure that can be detachably connected to the shaft on the front end side.

  A conventional billiard cue bat is a truncated cone-shaped rod with a tapered outer surface that is tapered, and most of the material is made of wood processed by combining a single material or a plurality of materials. A cue having a hollow structure or a multilayer structure is also known, but it was mainly formed by processing different types of wooden materials into multiple layers.

  The applicant of the present application has proposed a billiard cue having a multi-layered structure made of the same material of wood as disclosed in Japanese Patent Application Laid-Open No. 2001-070499 (Japanese Patent Application No. 11-251799: Prior Art 1). A multilayer structure of different materials has been filed as Japanese Patent Application Laid-Open No. 2001-198256 (Japanese Patent Application No. 2000-10979: Prior Art 2). Further, the present applicant has proposed a billiard cue having a hollow portion according to Japanese Patent Laid-Open No. 2001-346932 (Japanese Patent Application No. 2000-173898: Prior Art 3). Furthermore, the present applicant has proposed an improved multi-layer billiard cue stick according to Japanese Patent Application Laid-Open No. 2004-105658 (Japanese Patent Application No. 2002-276183: Prior Art 4).

  According to the prior art 1, the applicant of the present application provides a "cue for billiards characterized in that the butt portion and / or shaft portion of the cue is composed of an intermediate core material and a peripheral material provided around the intermediate core material". Disclosure.

  Further, in prior art 2, “the shaft and / or bat of the billiard cue is composed of a rod-shaped body having a multilayer structure made of different materials from the center of the rod to the outer peripheral surface layer, and a through hole is provided at the center of the multilayer structure. Billiard cues "are disclosed.

Further, in prior art 4, “the shaft and the bat have a multilayer structure, the shaft is composed of a plurality of layers from the center to the peripheral direction, the center layer is made of a lightweight member such as a foamed plastic material, and the outer peripheral layer is made of a hard member. The rod-like body is provided with an adhesive elastic member having adhesiveness and elasticity between the center layer and the outer peripheral layer, and the bat has a plurality of layers from the center to the peripheral direction, and the center layer and the outer peripheral layer are hard. A billiard cue stick characterized by being a rod-like body made of a member and provided with an adhesive elastic member having adhesiveness and elasticity between the center layer and the outer peripheral layer. In addition, the multi-layer structure of the shaft and the multi-layer structure of the bat are different from each other, the shaft is composed of a plurality of layers from the center to the peripheral direction, and the center layer is made of a lightweight member such as a foamed plastic material. This is a rod-shaped body in which a reinforced cylindrical portion is provided on the outer peripheral side, an outer peripheral layer is made of a hard member, and an adhesive elastic member having adhesiveness and elasticity is provided and bonded between the reinforced cylindrical portion and the outer peripheral layer. In addition, the bat has a plurality of layers from the center to the peripheral direction, the center layer and the outer peripheral layer are made of a hard member, and a reinforcing cylindrical portion is provided on the outer peripheral surface of the central layer, and adhesion between the reinforcing cylindrical portion and the outer peripheral layer is improved. There is disclosed a billiard cue stick characterized in that it is a rod-like body formed by providing an adhesive elastic member having elasticity and bonding a reinforced cylindrical portion and an outer peripheral layer.
JP 2001-070499 A JP 2001-198256 A JP 2001-346932 A JP 2004-105658 A

  The cue stick for billiards having a single material, a multilayer structure made of a single material, a multilayer structure made of different materials, or a structure having a hollow has a problem. Even if one kind of wood, that is, a single piece of material, was cut to make a straight billiard bat, there was a problem that it was easy to bend with the passage of time.

  In addition, the nature of wood has hard, soft, heavy, light and brittleness depending on the type of tree. When a cue stick for billiards is formed with a single material, the repulsive force and properties will differ depending on the type of wood, and it will be constant. There was a problem that a cue stick for billiards could not be made. Furthermore, even when using the same kind of single material, there is a problem that the shot direction is difficult to stabilize due to the difference in repulsion and repulsion between the grid direction and the plate direction.

  Also, with multi-layered cue sticks, generally for beginners, beginners, and intermediate players, when the cue hits even slightly away from the center of the ball, the change that is given to the ball increases, making it difficult to control the ball. was there. Therefore, it took a lot of time and effort to enjoy the game interestingly.

  Further, the bat portion of the conventional multi-layer billiard cue has a problem that it is easily broken or damaged when it is subjected to strong pressure.

  In order to solve the above-mentioned problems, a billiard cue bat is formed by connecting a shaft and a bat, and is composed of a combination of at least two members, a front portion and a rear portion, with one member having a main body portion at the center of a circular cross section. An insertion part protruding in the longitudinal direction is formed, a male screw is formed in the insertion part, an insertion hole opening in the center of the circular cross section of the end surface of the other member is formed, and the insertion hole corresponds to the male screw A billiard cue bat characterized in that a female screw is formed at a position, an insertion portion is inserted into a hole to be inserted, and a male screw and a female screw are screwed together to fit two members to form a bat. suggest.

  Also, it is a billiard cue bat formed by connecting a shaft and a bat, and is formed by combining at least two members of a front part and a rear part, and one member protrudes in the longitudinal direction from the main body part at the center of a circular cross section. The insertion portion is formed with a length that is substantially close to the length of the other member, and a male screw is formed at the base of the insertion portion, and the insertion hole that opens at the center of the circular cross section of the end surface of the other member A female screw is formed at a position corresponding to the male screw at a part of the insertion hole, and the insertion part is inserted into the insertion hole and the male screw and the female are formed. A billiard cue bat is proposed in which a screw is screwed to fit two members together to form a bat.

  Furthermore, in the billet cue bat described in the above-mentioned column 0011 or 0012, a billiard cue bat is proposed in which one member and the other member are made of wood having different properties.

  In addition, the main body portion of one member has an adhesive between the butt of the billiard cue according to the 0011 column or the 0012 column or the 0013 column provided with a core material having a different property in the center of the circular cross section, and the insertion portion and the insertion hole. A billiard cue bat described in column 0011 or 0012 or 0013 or in this column is proposed.

  According to the present invention, since it is configured as described above, the insertion portion of one member is inserted into the insertion hole of the other member by the male screw and the female screw, and is fitted to each other. Since the inner peripheral surface and the outer peripheral surface are in contact with each other at the peripheral surface, the strength is enhanced in the horizontal direction as well as in the vertical direction. In addition, if the two members are of different nature, billiard cue bats with different properties can be obtained by combining hard and soft wood, or light and heavy wood. Can be made.

  Further, like the bat of the billiard cue according to claim 3, structural toughness can be added by providing a core material in the center of the circular cross section of the main body portion of one member. Furthermore, since the insertion portion and the insertion hole are fixed by an adhesive, the peripheral surfaces are bonded and fixed in addition to screwing by a male screw and a female screw, so the strength is further improved in both the vertical direction and the horizontal direction. To do.

  FIG. 1 is a front explanatory view of one member of a bat of a billiard cue showing an embodiment of the present invention, FIG. 2 is also a front explanatory view of the other member, and a state in which one member and the other member are combined. 3 is a front explanatory view of FIG. 3, FIG. 4 is a completed front view of a billiard cue bat provided with joints and the like in FIG. 3, and the core material provided on the main body portion of one member of the billiard cue bat is oblique This will be described with reference to FIGS. 5 to 7 which are explanatory views seen from the rear.

  As shown in FIG. 4, the billiard cue bat 1 is a rod-like body that becomes thinner as it goes to a joint portion 10 connected to a shaft (not shown), and a rear end is a butt end portion 11.

  The bat 1 of the billiard cue will be described. The bat 1 of the billiard cue is formed by combining at least two members, ie, a front portion 3 and a rear portion 2, and has an overall length of about 700 mm to 750 mm. In this embodiment, the rear portion 2 is one member 2 having the insertion portion 20, and the front portion 3 is the other member 3 having the insertion hole 30, and are made of wood having different properties. As another embodiment (not shown), the front portion 3 may be one member having an insertion portion, and the rear portion 2 may be the other member having an insertion hole. The butt 1 is provided with a joint portion 10 that is a connecting portion with a shaft (not shown) on the distal end side of the front portion 3, and a butt end portion 11 on the rear end portion of the rear portion 2. As yet another embodiment, three or more members may be combined in the longitudinal direction of the bat 1.

  In this embodiment, the main body portion 20 of the rear portion 2 which is one member is approximately the length of the rear half of the bat overall length, the total length of the main body portion is about 350 mm to 450 mm, and the outer diameter is hung from the front portion to the rear portion. About 26 mm to 33 mm. An insertion portion 21 is projected from the front end surface of the main body portion 20 of the rear portion 2 toward the front in the center of the circular cross section. The main body portion 20 and the insertion portion 21 are configured to be integrally fixed.

  The main body portion 20 includes a core material 4 having different properties at the center of the circular cross section and an outer layer member 200 that covers the outer periphery of the core material 1. The core material 4 is provided over the entire length of the main body portion 20 in this embodiment, but may be shorter than the entire length in other embodiments. The core material 4 is usually made of wood, metal, or a hard synthetic resin material that is harder than the material of the outer layer member 200 of the main body portion 20. The shape of the core material 4 includes a columnar shape, an octagonal columnar shape, a quadrangular columnar shape, etc. as shown in FIGS. 5 to 7, but other shapes may be used. The material of the outer layer member 200 is composed of various kinds of woods which are combined and fixed in the circumferential direction, and in this embodiment, various kinds of wood are combined into a plurality of kinds of wood divided into 4 parts in the circumferential direction. Become.

  The insertion portion 21 is made of wood, protrudes in the longitudinal direction at the central portion of the circular cross section of the front end surface of the main body portion 20, and is formed with a length that is substantially close to the length of the other member 3 that is the tip portion 3. The length of the insertion portion 21 is about 300 mm to 330 mm in this embodiment, and the outer diameter is 15 mm to 20 mm. The insertion portion 21 forms a male screw 22 at the base portion on the main body portion 20 side. The outer diameter of the male screw 22 is about 26 mm to 28 mm, and the length of the male screw 22 is about 10% to 50% of the insertion portion 21. The insertion portion 21 is formed integrally with the main body portion 20, but the insertion portion 21 and the core material 4 may be formed of the same single material.

  The other member 3 which is the front portion 3 has a length corresponding to the length of the insertion portion 21 of the one member 2 with the insertion hole 30 opened in the central portion of the circular cross section of the rear end surface of a single material or a plurality of different types. Is formed. A female screw 31 is formed in the insertion hole 30 at a position and length corresponding to the male screw 22 in the vicinity of the rear opening 32.

  An adhesive is applied to the outer peripheral surface of the insertion portion 20 of the one member 2 of the bat 1 of the embodiment of the present invention, and the insertion portion 20 is inserted into the insertion hole 30 from the opening 32 of the other member 3. The outer shape (outer diameter, length, etc.) of the insertion portion 20 and the inner shape (inner diameter, length, etc.) of the insertion hole 30 correspond to each other and at a position corresponding to the male screw 22 and the male screw 22. The formed female screw 31 is screwed to fit the two members. Thereby, the bat 1 of the billiard cue is formed by being adhesively fixed to the inner peripheral surface of the insertion hole 30 by the adhesive applied to the outer peripheral surface of the insertion portion 20. An outer surface of the bat 1 is formed, a joint portion 10 that is a connecting portion with a shaft is provided at a tip portion, and a butt end portion 11 is provided at a rear end portion of the rear portion 2.

  As a billiard cue, it is expected to be used by beginners to advanced players because it does not bend or go crazy over time.

Front explanatory drawing of one member of the bat of the billiard cue which shows one embodiment of this invention Front explanatory drawing of the other member Similarly front explanatory drawing of the state which combined one member and the other member Completion front view of billiard cue bat with joints, etc. Explanatory drawing which looked at the core material provided in the main-body part of one member of the bat of a billiard cue similarly from diagonally back. Explanatory drawing which looked at the core material provided in the main-body part of one member of the bat of a billiard cue similarly from diagonally back. Explanatory drawing which looked at the core material provided in the main-body part of one member of the bat of a billiard cue similarly from diagonally back.

Explanation of symbols

1 bat
10 Joint part 11 Butt end part 2 One member (the rear part in this embodiment)
20 Main body part 200 Outer layer member 21 Insertion part 22 Male screw 3 The other member (the front part in this embodiment)
30 Insertion hole 31 Female screw 32 Opening 4 Core material

Claims (5)

  This is a billiard cue bat formed by connecting a shaft and a bat, and is formed by combining at least two members of a front portion and a rear portion, and one member has an insertion portion protruding in the longitudinal direction from the main body portion at the center of the circular cross section. And forming a male screw in the insertion portion, forming a hole to be inserted that opens in the central portion of the circular cross section of the end surface of the other member, and forming a female screw in a position corresponding to the male screw in the hole to be inserted, A billiard cue bat, wherein an insertion portion is inserted into an insertion hole and a male screw and a female screw are screwed together to fit two members to form a bat.   This is a billiard cue bat formed by connecting a shaft and a bat, and is formed by combining at least two members of a front portion and a rear portion, and one member has an insertion portion protruding in the longitudinal direction from the main body portion at the center of the circular cross section. Is formed with a length substantially equal to the length of the other member, a male screw is formed at the base of the insertion portion, and an insertion hole that opens at the center of the circular cross section of the end surface of the other member is inserted into one member It is formed with a length corresponding to the length of the part, and a female screw is formed at a position corresponding to the male screw at a part of the insertion hole, and the insertion part is inserted into the insertion hole and the male screw and the female screw are inserted. A billiard cue bat, wherein the bat is formed by screwing together two members.   The billet cue bat according to claim 1 or 2, wherein one member and the other member are made of wood having different properties.   The billet cue bat according to claim 1, wherein the main body portion of one member is provided with a core material having a different property at the center of the circular cross section. The billet cue bat according to claim 1, claim 2, claim 3, or claim 4, wherein the insertion portion and the insertion hole are fixed by an adhesive.

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