Magnetically detachable lightweight carbon mechanical bridge

Abstract

In billiards, we offer a mechanical bridge that is lightweight, highly maneuverable, and allows for instantaneous changes in the orientation of the bridge head, supporting smooth and strategic play. [Solution] The mechanical bridge for billiards comprises a retractable carbon fiber shaft 1 and a detachable bridge head 2. By placing a magnet 3 and a magnetic material 4 at the joint between the shaft tip and the head, magnetic fixing and instantaneous reversal attachment are achieved. A rubber end cap 5 is provided at the rear end of the shaft, and a brass balance weight 6 is built inside.

Description

Technical Field

[0001] The present invention relates to a mechanical bridge (rest) used as an auxiliary tool for supporting a cue when the hand ball is far away in billiards.

Background Art

[0002] Conventional mechanical bridges generally have a plastic or metal bridge head fixed to the tip of a wooden or metal shaft by screwing or the like.

Summary of the Invention

Problems to be Solved by the Invention

[0003] Conventional mechanical bridges had the following problems. First, many of them were heavy, making it difficult to operate in delicate arrangements in billiards or to quickly remove them after a shot. Second, when finely adjusting the orientation of the bridge head or replacing it with a different-shaped surface, the screw type took time for attachment and detachment, causing a loss of the play tempo. An object of the present invention is to solve these problems and provide a mechanical bridge capable of lightweight and rapid replacement and inversion of the bridge head.

Means for Solving the Problems

[0004] To solve the above problems, the mechanical bridge of the present invention employs a telescopic carbon fiber shaft and has a magnet mechanism at the joint between the shaft tip and the bridge head. As a result, weight reduction is achieved, and one-touch attachment / detachment and inverted attachment by magnetic force are realized. Further, a butt rubber is provided at the rear end of the shaft, and it can be leaned against like a cue. Furthermore, a brass balance weight is built in near the butt rubber to maintain balance. [Effects of the Invention]

[0005] This invention dramatically reduces weight through the use of carbon material, making it easier to handle after a shot. Furthermore, the use of a magnetic connection between the shaft tip and the bridge head allows for instantaneous changes in the bridge head's orientation, supporting strategic play. The use of a rubber butt cap and brass balance weights allows for stable, upright storage. [Brief explanation of the drawing]

[0006] [Figure 1] This is a perspective view showing the bridge head of the mechanical bridge according to the present invention. [Figure 2] This is a side view showing the entire shaft and its joint. [Figure 3] This is a cross-sectional view showing the details of the connection between the shaft tip and the bridge head. [Modes for carrying out the invention]

[0007] Figure 2 is a side view showing the overall configuration of the mechanical bridge according to the present invention. The mechanical bridge of the present invention comprises a retractable tubular shaft 1 and a bridge head 2 that is detachably attached to the end of the shaft 1. The shaft 1 is made of a material mainly composed of carbon fiber reinforced plastic (carbon fiber), achieving both lightness and high rigidity. In this embodiment, the shaft 1 has a total length of approximately 143 cm when extended and a total length of approximately 29.5 cm when retracted, and can extend and retract by approximately 5 times. The weight of the shaft 1 is approximately 197 g. Figure 1 is a perspective view of the bridge head 2 used in the mechanical bridge of the present invention. The bridge head 2 is a flat plate-shaped member formed from a non-magnetic material such as transparent acrylic resin, and has a plurality of bridge receiving parts (recessed notches) on its outer circumference for supporting the cue. In this embodiment, the bridge head 2 has dimensions of approximately 7 cm x 13 cm and weighs approximately 55 g. A magnet 3 is attached to the center of the bridge head 2 for attracting the magnetic material 4 at the tip of the shaft 1. Figure 3 is a cross-sectional view showing the details of the connection between the tip of the shaft 1 and the bridge head 2. As shown in Figure 3, a magnetic material 4 (such as an iron piece) is attached to the tip of the shaft 1, and a magnet 3 is attached to the center of the bridge head 2 at a position corresponding to the magnetic material 4. The user simply brings the magnetic material 4 at the tip of the shaft 1 close to the magnet 3 on the bridge head 2, and the magnetic force of the magnet 3 attracts the magnetic material 4, securely holding the bridge head 2 to the shaft 1. Removal is simply a matter of applying force in the direction of pulling the bridge head 2 away from the shaft 1, and it can be attached and detached with a single touch without the use of tools. The magnetic attachment mechanism of this invention allows the bridge head 2 to be attached in any orientation. That is, by reversing and attaching the bridge head 2, different support surfaces of the head can be used instantly, allowing the optimal bridge shape to be selected according to the situation without disrupting the tempo of play. Furthermore, since the attraction surface between the magnet 3 and the magnetic material 4 is flat, it is also possible to set the attachment angle of the bridge head 2 arbitrarily. A rubber butt cap 5 is provided at the rear end of the shaft 1. The butt cap 5 functions as an anti-slip and protective element when the shaft 1 is leaned against a floor or other surface. Furthermore, a brass weight 6 for balance adjustment is built into the vicinity of the butt cap 5. This balance weight 6 balances the weight of the magnetic material 4 attached to the tip of the shaft 1 and the attached bridge head 2 (including the magnet 3), and plays a role in positioning the center of gravity of the entire shaft 1 closer to the rear end. This improves the stability when the mechanical bridge is leaned against a floor, allowing it to be stored upright in the same way as a cue. It should be noted that this invention is not limited to the above-described embodiments, and various modifications are possible without departing from its essence. For example, the arrangement of the magnet 3 and magnetic material 4 may be reversed, and a configuration in which the magnet is placed on the tip side of the shaft 1 and the magnetic material is placed on the bridge head 2 side is also included within the scope of this invention. Furthermore, the telescopic structure of the shaft 1 is not limited to a telescopic type (multi-stage telescopic type), and any telescopic mechanism can be adopted as needed. [Explanation of symbols]

[0008] 1 shaft 2 Bridge head 3 Magnets 4 Magnetic material (iron piece, etc.) 5. Buttocks 6. Balance weight (made of brass)

Claims

1. A mechanical billiard bridge comprising a retractable tubular shaft and a bridge head detachably attached to the end of the shaft, wherein the shaft is formed from a material mainly composed of carbon fiber reinforced plastic (carbon fiber), and a magnet is provided on one of the end of the shaft and the attachment part of the bridge head, and a magnetic material is provided on the other, so that the bridge head is held by magnetic force and can be attached by reversing the bridge head.

2. The billiard mechanical bridge according to claim 1, characterized in that a rubber butt is provided at the rear end of the shaft, and a brass weight for balance adjustment is built into the vicinity of the rubber butt.

3. A billiard mechanical bridge according to claim 1 or 2, characterized in that the magnetic material is attached to the tip of the shaft and the magnet is attached to the center of the bridge head.

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