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Billiard cueRelated Patent Categories: Games Using Tangible Projectile, Billiards Or Pool, CueBilliard cue description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20070060406, Billiard cue. Brief Patent Description - Full Patent Description - Patent Application Claims
BACKGROUND OF THE INVENTION [0001] (1) Field of the Invention [0002] The present invention relates to a billiard cue, and more particularly to a billiard cue constituted in stick shape by jointly connecting the end parts of a butt and a shaft, and being bored a first hollow hole in the rear end part of the butt, thereby storing a first weight to adjust a weight balance (gravity center). [0003] (2) Description of the Related Arts [0004] Conventionally, being various a frame or a playing style of a player, the most important thing for a billiard cue is to be adjusted according to appropriate weight and balance for each player, and for example, a cue with a structure in which a gravity center (weight balance) is adjusted by a weight, which is received in a hollow hole bored inside a stick-shaped body, extending from a ball hitting tip part toward a rear end part, has been known. [Cited Reference 1] [0005] Japanese Utility Model Laid-Open No. 38-4351(Page. 1, FIG. 1) [0006] The examples of related art will be described referring to FIGS. 10 and 11. FIG. 10 is a block diagram of one embodiment of a conventional cue, in which a gravity center is adjustable. [0007] As shown in FIG. 10, in one embodiment of a conventional cue, a stick-shaped body 70 is provided, wherein a shaft 90 consisting a ball hitting tip part and a butt 80 consisting a rear end part, is jointly connected, in a joint part 72. Being bored a hollow hole 70a in the center part of the body 70, is inserted a screw lever 84, which is jointly connected to a knob 83 to extend from a rear end (a rear end of the butt 80), and a weight 82, which is slidable, is screwed to the screw lever 84 (cited reference 1). [0008] In such an embodiment of a conventional cue, by giving the screw lever 84 a turn to the right or the left holding a knob 83, the weight 82, which is screwed to the screw lever 84, moves backwards and forwards in the hollow hole 70a, such that a gravity center can be adjusted suitably. [0009] On another front, there has been known another embodiment of a conventional cue, which is distinct from the already described embodiment, in that an inner structure of a hollow hole is more simplified. FIG. 11 is a block diagram, in which is shown such a conventional cue with a simplified inner structure. [0010] In the conventional cue shown in FIG. 11, a stick-shaped body 100 is formed by jointly connecting the end parts of a butt 110 and a shaft 120 with joint members 102, being bored a first hollow hole 110a in a rear end of the butt 110, in which a weight 112 is received to adjust a weight balance. The weight 112 has a screw shape and is inserted from a first hollow hole 110a, being screwed in an inner part, so that a weight balance of the entire body 100 can be adjusted. Moreover, the joint members 102 are respectively attached in second hollow holes 110b and 120b, which are bored respectively in the end parts of the butt 110 and the shaft 120, where the butt 110 and the shaft 120 are jointly connected. The joint members 102 are consisted of a joint pin 114, attached in the second hollow hole 110b of the butt 110 to have a stick-shaped male screw protruded, and an approximately tubular joint cylinder body 124, received in the second hollow hole 120b of the shaft 120, in inner periphery of which having a female screw, and these two members are screwed together to jointly connect the butt 110 to the shaft 120 in stick shape. [0011] In the conventional cue shown in FIG. 11, a weight balance of the body 100 is adjusted according to the weight of the weight 112, and a gravity center has been changed by changing a shape of the screw or a material of the screw, such as duralumin or stainless. [0012] In such a manner, in a conventional cue, one weight has been received in a hollow hole bored in a stick-shaped body, so that the cue is adjusted to have appropriate weight and balance for each player, according to her/his frame or playingstyle. Accordingly, a conventional cue has been consisted so that a free adjustment of a gravity center of the entire body is possible, and difficult techniques such as follow shot or draw shot, for which is important a whole balance, can be well achieved. SUMMARY OF THE INVENTION [0013] However, as for such a conventional cue, both of the bodies 70 and 100, respectively shown in FIG. 10 and FIG. 11, being of a structure of storing just one weight (82, 112) in a hollow hole (hollow hole 70a, a first hollow hole 110a) bored in one place, a problem has been that it is difficult, only with the one weight 82 or 112, to make a fine adjustment of a weight balance of the entire body extending in stick shape, such as adjustment of only the weight balance, without changing the weight of the entire cue, or adjustment of only the weight, without changing the weight balance. [0014] The object of the present invention is to solve these problems and provide a billiard cue of a simple structure, in which a weight balance of the entire cue can be free and finely adjusted. [0015] To solve the problems described above, in the present invention, is provided a billiard cue, in which the end parts of a butt and a shaft are jointly connected by the joint members in a manner to form the billiard cue in stick shape, and is bored a first hollow hole in the rear end part of the butt, thereby storing a first weight, so that a weight balance is adjustable. In the billiard cue of the present invention, a second hollow hole is bored in each connecting end of the butt and the shaft, and in either one of the second hollow holes, after being received a second weight, joint members are attached. [0016] At this point, joint members comprise a joint pin, fixed in a second hollow hole of either of a butt or a shaft, having a stick-shaped male screw protruded, and an approximately tubular joint cylinder body, received in the other second hollow hole, having a female screw in inner periphery. It is preferable that the butt and the shaft are jointly connected in stick shape, by screwing these two members together. Moreover, in another embodiment of the joint members, it is preferred that the joint members comprise a joint pin, fixed in a second hollow hole of either of a butt or a shaft, having a stick-shaped male screw protruded, and a joint hole, which is provided in another second hollow hole, having a female screw directly in its inner periphery, and that these members are screwed together to jointly connect the butt and the shaft in stick shape. In addition, it is preferable that, in the second hollow hole, from the end part of an attached joint cylinder body or an attached joint hole, a tubular weight joint having a female screw in its inner periphery, is also attached consecutively, and in the weight joint, a second weight is received by being screwed. Additionally, it is preferred that a joint cylinder body and a weight joint are integrally formed to be received in the second hollow hole. Besides, it is preferable that as the second weight, which is screwed and received in the second hollow hole from its open part side, a screw having a head part or a screw not having a head part is selectively used. [0017] As described above in detail, according to the present invention, a first weight and a second weight are attached in the body consisted of a shaft and a butt, allowing a fine adjustment of the weight balance of the entire body extending in stick shape, such as an adjustment of only the centroid balance, without changing the weight of the entire cue, or an adjustment of only the weight, without changing balance. BRIEF DESCRIPTION OF DRAWINGS [0018] FIG. 1 is a block diagram of a first embodiment of the cue according to the present invention. [0019] FIG. 2 shows a first weight shown in FIG. 1. [0020] FIG. 3 shows a second weight shown in FIG. 1. Continue reading about Billiard cue... Full patent description for Billiard cue Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Billiard cue patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. Start now! - Receive info on patent apps like Billiard cue or other areas of interest. ### Previous Patent Application: Portable infant swing Next Patent Application: Handle section combination for billiard cue Industry Class: Games using tangible projectile ### FreshPatents.com Support Thank you for viewing the Billiard cue patent info. 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