Billiard cue, ferrule and method for manufacturing billiard cue

Abstract

To provide a billiard cue and a ferrule, as well as the method for manufacturing such billiard cue, which can combine the performance of a billiard cue made of carbon fiber reinforced plastic and the use feeling of a wooden billiard cue, and enhance controllability by reducing anticipation when poking a cue ball.SOLUTION: A billiard cue comprises: a ferrule made of synthetic resin which is attached to the tip with which a cue ball is poked; and a billiard cue body which is formed to taper off and made of wood. The ferrule is attached, in a way that it fits externally, to a metal mounting core material embedded in the tip of the billiard cue body at a prescribed attachment depth.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a billiard cue used in billiards, a ferrule used in this billiard cue, and a method for manufacturing these billiard cues. [Background technology]

[0002] Conventionally, various types of billiard cues used in billiards have been known according to the preferences and applications of players.

[0003] For example, as described in Patent Document 1, a billiard cue is known in which a cylindrical, tapered wooden shaft has a hollow hole with a circular cross-section that runs from the tip to the rear end, and in which a short, hollow fiberglass reinforced plastic with a circular cross-section, a long, hollow carbon fiber reinforced plastic with a circular cross-section, and a long, hollow fiberglass reinforced plastic with a circular cross-section are integrally molded from the tip into the hollow hole of the shaft, and a wooden shaft with a long, circular cross-section foamed synthetic resin cushioning material housed within the hollow of the integrally molded material, and a wooden butt are attached with a detachable device.

[0004] With this type of billiard cue, a long, foamed synthetic resin cushioning material with a circular cross-section is stored from the tip of the wooden shaft, which cushions the impact on the wooden part of the shaft when it is in use, preventing damage to the wooden part of the shaft and allowing the billiard cue to be used stably for long periods of time. In addition, this wooden shaft is strong because the carbon fiber reinforced plastic core material and the glass fiber reinforced plastic at both ends are molded as a single unit, and the long, foamed synthetic resin cushioning material with a circular cross-section is provided inside the hollow space of this single unit, absorbing sound, so that the billiard cue will not emit abnormal noises, even when used for long periods of time.

[0005] In addition, the billiard cue described in Patent Document 2 has a tip at the tip of the cue stick, and the striking tip surface of the tip has different properties between the central tip surface and the peripheral tip surfaces surrounding this central tip surface.

[0006] With this type of billiard cue, the central tip surface and the peripheral tip surface have different properties, so that when striking the center of the cue ball and when striking a position off-center, for example, striking a position off-center will increase the area of ​​contact of the striking tip surface or the position of the striking tip surface that strikes the center of the cue ball will be different, and the cue ball can be struck over a range of striking tip surfaces with different properties depending on which range of the striking tip surface the cue ball is struck at, and by setting these different properties, it is possible to accommodate the different preferences of players depending on where they strike. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] JP 2022-173976 A [Patent Document 2] JP 2022-161826 A Summary of the Invention [Problem to be solved by the invention]

[0008] However, with conventional billiard cues, if the tip of the cue (hereinafter also referred to as the "ferrule") is made hard, the amplitude of the cue when the cue ball is hit is reduced, making it less likely to bend left or right and allowing the cue ball to fly straight; however, if fiberglass reinforced plastic or carbon fiber reinforced plastic is used for the billiard cue, the feel and sound when the cue ball is hit changes compared to a wooden cue, and players who are accustomed to using conventional wooden billiard cues have expressed dissatisfaction with the feel of the cue.

[0009] The present invention has been made to solve the above problems, and its object is to provide a billiard cue, ferrule, and method for manufacturing said billiard cue, which combines the performance of conventional billiard cues made of materials such as carbon fiber reinforced plastic with the feel of a wooden billiard cue, and which improves control by reducing the risk of overlooking the cue ball when hitting it (deviation from the path of the cue ball). [Means for solving the problem]

[0010] The billiard cue of the present invention, which solves the above-mentioned problems, is a billiard cue comprising a synthetic resin ferrule attached to the tip that strikes the ball, and a rod-shaped billiard cue body made of wood and formed into a tapered shape, wherein the ferrule is attached so as to fit over a metal mounting core material that is embedded at a predetermined mounting depth in the tip of the billiard cue body.

[0011] In the billiard cue according to the present invention, it is preferable that the attachment depth is 15 mm to 25 mm.

[0012] In the billiard cue according to the present invention, it is preferable that the ferrule is made of polycarbonate or ABS, and the mounting core material is made of aluminum alloy or titanium.

[0013] The ferrule according to the present invention is characterized in that it comprises a cylindrical ferrule body made of synthetic resin, and a metal mounting core member that is assembled approximately coaxially with the ferrule body and protrudes a predetermined mounting depth from the end face of the ferrule body.

[0014] In the ferrule according to the present invention, it is preferable that an engaging projection protruding in a radial direction is formed on an outer circumferential surface of the mounting core.

[0015] In addition, a manufacturing method for a billiard cue according to the present invention is characterized by the steps of: removing a ferrule attached to the tip of the billiard cue; removing a ferrule mounting portion formed on the billiard cue body from which the ferrule was removed; drilling a mounting hole coaxially with the billiard cue body on the surface from which the ferrule mounting portion was removed; attaching a metal mounting core material to the mounting hole; and attaching a synthetic resin ferrule to the mounting core material. Effect of the Invention

[0016] In the billiard cue of the present invention, the synthetic resin ferrule is attached by fitting it onto the metal mounting core material buried at a predetermined depth, so that the adhesion between the ferrule and the billiard cue body will not come apart due to vibrations caused when the cue ball is struck. Instead, the vibrations are released in the axial direction of the billiard cue via the mounting core material, reducing radial vibrations at the tip of the billiard cue and reducing overshooting, and by increasing the spin applied to the cue ball, controllability can be improved.

[0017] Furthermore, since the billiard cue body is made of wood as in the conventional cue, the same usability as in the conventional cue can be maintained.

[0018] Furthermore, the ferrule according to the present invention comprises a cylindrical ferrule body made of synthetic resin, and a metal mounting core member that is assembled approximately coaxially with the ferrule body and protrudes a predetermined mounting depth from the end face of the ferrule body, so that a ferrule that can be easily attached by machining the tip of a conventional wooden billiard cue body can be provided.

[0019] Furthermore, the method for manufacturing a billiard cue according to the present invention makes it possible to easily manufacture the above-described billiard cue by processing a conventional wooden billiard cue. [Brief description of the drawings]

[0020] [Figure 1]1 is an exploded view of a billiard cue according to a first embodiment of the present invention. [Diagram 2] 1 is a cross-sectional view of a tip portion of a billiard cue according to a first embodiment of the present invention. [Diagram 3] 1 is a cross-sectional view of a billiard cue body according to a first embodiment of the present invention. [Figure 4] FIG. 1 is an exploded perspective view of a ferrule used in a billiard cue according to a first embodiment of the present invention. [Diagram 5] FIG. 6 is a cross-sectional view of a tip portion of a billiard cue according to a second embodiment of the present invention. [Figure 6] FIG. 5 is an exploded view of a ferrule used in a billiard cue according to a second embodiment of the present invention. [Figure 7] 1A to 1C are diagrams illustrating a billiard cue manufacturing method according to an embodiment of the present invention, showing a billiard cue body before processing. [Figure 8] 10A and 10B are diagrams showing a method of manufacturing a billiard cue according to an embodiment of the present invention, illustrating a step of removing a ferrule attachment portion formed on a billiard cue body. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0021] Preferred embodiments for carrying out the present invention will be described below with reference to the drawings. Note that the following embodiments do not limit the inventions according to the claims, and all of the combinations of features described in the embodiments are not necessarily essential to the solution of the invention.

[0022] [First embodiment] FIG. 1 is an exploded view of a billiard cue according to a first embodiment of the present invention, FIG. 2 is a cross-sectional view of a tip portion of the billiard cue according to the first embodiment of the present invention, FIG. 3 is a cross-sectional view of a billiard cue body according to the first embodiment of the present invention, and FIG. 4 is an exploded oblique view of a ferrule used in the billiard cue according to the first embodiment of the present invention.

[0023] 1, the billiard cue 1 according to this embodiment is composed of a rod-shaped billiard cue body 10, the tip of which is used to strike the cue ball, and a butt 11 that is detachably attached to the base end of the billiard cue body 10. A ferrule 20 is attached to the tip of the billiard cue body 10.

[0024] The bat 11 is a rod-shaped member with a thicker shaft than the billiard cue body 10, and is detachably attached by being screwed to the base end side of the billiard cue body 10. The bat 11 is made of wood, and is preferably made by cutting or gluing together wood such as maple, ebony, and rosewood.

[0025] 2, the billiard cue body 10 is a rod-shaped member made of wood and formed into a tapered shape. The billiard cue body 10 is preferably made of a relatively hard wood, such as maple.

[0026] 3, a mounting hole 12 is formed at the tip of the billiard cue body 10. The mounting hole 12 is a bottomed hole formed at a predetermined depth from the tip surface of the billiard cue body 10, and is preferably configured to a depth of, for example, 15 mm to 25 mm, and more preferably configured to a depth of 20 mm.

[0027] As shown in Fig. 4, the ferrule 20 is a member made of synthetic resin, and for example, polycarbonate resin or ABS (Acrylonitrile Butadiene Styrene) resin is preferably used. The ferrule 20 is a cylindrical member, and a bottomed assembly hole 21 is formed in the central axis of the ferrule 20. A mounting core member 30, which will be described later, is attached to the assembly hole 21. The depth of the assembly hole 21 is desirably shallower than the mounting hole 12 formed in the billiard cue body 10, and is preferably set to about 10 mm, for example.

[0028] The mounting core member 30 is preferably made of a metallic cylindrical pipe having a through hole 31 formed along the axial direction, for example, an aluminum alloy or a titanium alloy. The mounting core member 30 may be configured as the ferrule according to this embodiment by being assembled into the assembly hole 21 of the ferrule 20 (the ferrule body in the claims).

[0029] [Second embodiment] In the billiard cue 1 according to the first embodiment described above, the mounting holes 12 for mounting the mounting core material 30 are formed in the billiard cue body 10, and the mounting core material 30 is assembled into the mounting holes 12. The billiard cue 1a according to the second embodiment described next is an example of a billiard cue having a different configuration from the first embodiment. Note that the same reference numerals are used for the same or similar members as those in the first embodiment described above, and descriptions thereof will be omitted.

[0030] FIG. 5 is a cross-sectional view of a tip portion of a billiard cue according to a second embodiment of the present invention, and FIG. 6 is an exploded view of a ferrule used in the billiard cue according to the second embodiment of the present invention.

[0031] In the billiard cue 1a according to this embodiment, the mounting core 30a attached to the ferrule 20a is attached to an attachment member 40 attached to the billiard cue body 10. Therefore, the billiard cue 1a is configured so that the ferrule 20a can be easily attached and detached.

[0032] As shown in FIG. 6, the ferrule 20a is composed of a ferrule body 22 made of synthetic resin and a mounting core member 30a attached to the ferrule body 22.

[0033] The mounting core 30a is a metallic cylindrical pipe as in the first embodiment described above, and has an engagement protrusion 32 formed on its outer circumferential surface. The engagement protrusion 32 may be configured in any manner as long as it protrudes in the radial direction, and is preferably configured, for example, as a set screw screwed into the outer circumferential surface of the mounting core 30a. The number of engagement protrusions 32 can be increased or decreased as necessary, but is preferably formed, for example, in two along the axial direction.

[0034] The mounting member 40 is a member that is inserted into the mounting hole 12 formed in the billiard cue body 10 of the billiard cue 1 according to the first embodiment, and comprises a cylindrical pipe-shaped mounting member body 41 with a through hole formed along the axial direction, and a flange portion 42 formed at the tip of the mounting member body 41.

[0035] The mounting member 40 is preferably made of synthetic resin, and for example, it is preferable that the mounting member main body 41 is made of ABS resin and the flange portion 42 is made of polycarbonate resin. In this case, it is preferable that the mounting member main body 41 and the flange portion 42 are bonded to each other with an adhesive.

[0036] A key groove 45 extending along the axial direction and an engagement groove 46 extending circumferentially from the key groove 45 are formed on the outer peripheral surface of the mounting member body 41. The key groove 45 and the engagement groove 46 are configured to have a width that allows the engagement protrusion 32 to be inserted therethrough. The engagement groove 46 is formed at a position where, when the ferrule 20a is assembled to the mounting member 40, the engagement protrusion 32 overlaps with the engagement groove 46 in the axial direction when the ferrule body 22 and the flange portion 42 are in contact with each other.

[0037] The flange portion 42 has an assembly member through hole 43 formed in the center which communicates with the through hole of the assembly member main body 41, and the inner surface of the assembly member through hole 43 has a recess 44 formed therein which communicates with a key groove 45 of the assembly member main body 41.

[0038] The billiard cue 1a according to this embodiment configured in this manner can be easily assembled and fixed by inserting the mounting core material 30a of the ferrule 20a into the assembly member 40 assembled to the billiard cue body 10 until the ferrule body 22 and the flange portion 42 come into contact, and then rotating it in the circumferential direction so that the engagement projection 32 engages with the engagement groove 46. Moreover, the ferrule 20a can be easily removed from the billiard cue body 10 by rotating the ferrule 20a in the reverse direction.

[0039] [Billiard cue manufacturing method] Next, a manufacturing method for the billiard cue 1 according to the first embodiment and the billiard cue according to the second embodiment will be described. The manufacturing method according to this embodiment will be described in the case of processing a conventionally known billiard cue, but the billiard cue body may also be manufactured by cutting wood or the like.

[0040] FIG. 7 is a diagram showing a manufacturing method for a billiard cue according to an embodiment of the present invention, showing the billiard cue body before processing, and FIG. 8 is a diagram showing a manufacturing method for a billiard cue according to an embodiment of the present invention, showing the process of removing a ferrule attachment portion formed on the billiard cue body.

[0041] First, as shown in FIG. 7, the ferrule attached to the tip of the billiard cue is removed to expose the ferrule attachment portion 13 of the billiard cue body 10.

[0042] Next, the exposed ferrule mounting portion 13 is removed as shown in Figure 8. Since the ferrule mounting portion 13 is formed integrally with the wooden billiard cue body 10, it is preferable to remove the protruding ferrule mounting portion 13 by cutting it off from its base.

[0043] Next, the mounting hole 12 is drilled coaxially with the billiard cue body 10 on the surface from which the ferrule mounting portion 13 has been removed. At this time, if a lightening hole is formed along the axial direction so that the billiard cue body 10 is formed hollow, it is preferable to process the lightening hole so as to enlarge its diameter. If no such lightening hole is formed, the mounting hole 12 is formed to a predetermined depth coaxially with the billiard cue body 10 with the billiard cue body 10 appropriately clamped, as shown in FIG.

[0044] Furthermore, when manufacturing the billiard cue 1a according to the second embodiment, the attachment hole 12 is formed to have substantially the same size as the outer diameter of the attachment member 40, and the attachment member 40 is attached to the attachment hole 12.

[0045] Next, the mounting core material 30 is assembled into the mounting hole 12. At this time, it is preferable to assemble the mounting core material 30 by inserting it so that it abuts against the bottom of the mounting hole 12. By assembling it in this manner, it is possible to reliably assemble the mounting core material 30 to a predetermined depth.

[0046] Thereafter, the ferrule 20 is assembled so as to be fitted onto the mounting core member 30. At this time, it is preferable to use a conventionally known adhesive for assembling the ferrule 20 and the mounting core member 30.

[0047] Furthermore, when manufacturing the billiard cue 1a according to the second embodiment, the ferrule 20a with the mounting core member 30a attached to the ferrule body 22 is inserted into the mounting member through hole 43 of the mounting member 40 assembled to the billiard cue body 10. At this time, by assembling the mounting core member 30a so that the engagement projection 32 formed on the outer periphery thereof passes through the recess 44 formed in the flange portion 42, the engagement projection 32 can be guided along the key groove 45 continuing into the recess 44, making it possible to reliably insert the ferrule 20a into the mounting member 40.

[0048] After inserting the ferrule 20a until the ferrule body 22 abuts against the flange portion 42, the ferrule 20a is rotated in the circumferential direction, whereby the engaging projections 32 formed on the outer periphery of the mounting core material 30a are guided into the engaging grooves 46 and fixed in the axial direction. At this time, since the mounting member body 41 is made of ABS resin, it has appropriate elasticity and holds the outer periphery of the mounting core material 30a by the elastic force.

[0049] The billiard cue 1, 1a of this embodiment configured in this manner uses the same wooden billiard cue body 10 as conventional ones, and while maintaining the same feel as conventional ones, the hard synthetic resin ferrule 20 dissipates high vibrations generated by hitting the cue ball in the axial direction of the wooden billiard cue body 10 via the mounting core material 30, thereby reducing radial vibrations of the ferrule 20, thereby reducing anticipation and increasing the spin applied to the cue ball.

[0050] Furthermore, in the billiard cue 1a according to the second embodiment, the ferrule 20a can be easily attached and detached, so that the player can easily replace the ferrule 20a as necessary.

[0051] Furthermore, according to the ferrule 20 of this embodiment, the conventional billiard cue body 10 can be improved to form the billiard cue of this embodiment, so that it is possible to easily provide a billiard cue suited to the player's needs. [Explanation of symbols]

[0052] 1,1a billiard cue, 10 billiard cue body, 11 butt, 12 mounting hole, 13 ferrule mounting portion, 20,20a ferrule, 21 assembly hole, 22 ferrule body, 30,30a mounting core material, 31 through hole, 32 engagement protrusion, 40 mounting member, 41 mounting member body, 42 flange portion, 43 mounting member through hole, 44 recess, 45 key groove, 46 engagement groove.

Claims

1. A billiard cue comprising a synthetic resin ferrule attached to a tip portion for striking a ball, and a rod-shaped billiard cue body made of wood and formed into a tapered shape, The billiard cue is characterized in that the ferrule is attached so as to fit over a metal mounting core embedded at a predetermined mounting depth in the tip portion of the billiard cue body.

2. 2. The billiard cue according to claim 1, The billiard cue is characterized in that the mounting depth is 15 mm to 25 mm.

3. The billiard cue according to claim 1 or 2, 4. The billiard cue according to claim 1, wherein said ferrule is made of polycarbonate or ABS, and said mounting core material is made of aluminum alloy or titanium.

4. A ferrule comprising: a cylindrical ferrule body made of synthetic resin; and a metal mounting core member that is assembled approximately coaxially with the ferrule body and protrudes a predetermined mounting depth from an end face of the ferrule body.

5. The ferrule according to claim 4, The ferrule is characterized in that an engagement projection protruding in a radial direction is formed on an outer peripheral surface of the mounting core member.

6. removing a ferrule attached to the tip of a billiard cue; removing a ferrule attachment portion formed on the billiard cue body from which the ferrule has been removed; drilling a mounting hole coaxially with the billiard cue body on the surface from which the ferrule mounting portion has been removed; attaching a metal mounting core to the mounting hole; A method for manufacturing a billiard cue, comprising the steps of: attaching a ferrule made of a synthetic resin to the mounting core material.

Images