Bowling ball stand (smooth rotating bottom base ring)

Abstract

To provide a bottom base ring capable of smoothly rotating a bowling ball during maintenance of the ball. [Solution] A bottom base ring 2b that can smoothly rotate a bowling ball is provided with a round belt ring 3 fitted to the bottom of the bottom base ring and a PTFE ring 4 fitted to the top of the bottom base ring. The round belt at the bottom of the bottom base ring tightly grips the floor surface, and the PTFE ring at the top reduces the contact area with the ball, reducing friction.

Description

[Technical field]

[0001] This invention relates to a bowling ball support base (smooth rotating bottom base ring). [Background technology]

[0002] Conventional bowling balls are placed on a bottom base ring, which has a spherical (concave) ring-shaped upper part that comes into contact with the bowling ball, as shown in Figure 1, and a flat lower part (bottom surface) that comes into contact with the floor. In prior art documents, a rubber or other ring is fitted to the lower part of the bottom base ring (the surface that comes into contact with the floor) to prevent the floor from being scratched and to prevent the bottom base ring from shifting due to increased adhesion to the floor. A rubber or other ring is also fitted to the upper part of the bottom base ring (the surface that comes into contact with the ball) to allow the ball to be placed stably. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Utility Model Registration No. 3235727 (U3235727) Summary of the Invention [Problem to be solved by the invention]

[0004] The problem that this invention aims to solve is the drawback that when wiping or maintaining a ball, if the frictional resistance between the ball and the bottom base ring is large, it is difficult to rotate the ball and difficult to maintain it. Prior art documents focus on preventing the ball from moving, but this invention focuses on making the bowling ball rotate smoothly on the bottom base ring. To achieve this, the problem is to reduce the frictional resistance between the ball and the bottom base ring. [Means for solving the problem]

[0005] In order to solve this problem, the present invention considered the material of the ring fitted onto the top of the bottom base ring (the contact surface with the ball) and the contact area between the ball and the bottom base ring. By making an improvement to replace the rubber ring fitted to the top of the bottom base ring (the surface that comes into contact with the ball) in the prior art document with a ring made of a material with a low coefficient of friction such as polytetrafluoroethylene (hereinafter referred to as PTFE), it has become possible to allow the bowling ball to rotate smoothly. The basic structure is the same as in the prior art documents, with a ring made of a round belt (urethane rubber, etc.) fitted to the bottom (part that comes into contact with the floor) of the main body molded from plastic, etc. By embedding a PTFE ring into the upper spherical surface (concave surface) of the bottom base ring that comes into contact with the ball, it is possible to improve on the prior art for different applications. Effect of the Invention

[0006] With the smooth-rolling bottom base ring of this invention, when a bowling ball is placed on the bottom base ring, the contact surface between the bottom base ring and the ball is small, and the friction coefficient of the PTFE ring is small, allowing the ball to roll smoothly, as shown in Figure 3. By placing two PTFE rings on the upper spherical surface (concave surface) of the bottom base ring as shown in Figure 4, the friction coefficient between the bottom base ring and the ball is further reduced, improving the ball's rotation performance. [Brief description of the drawings]

[0007] [Figure 1] FIG. 1 is a cross-sectional view of a conventional bottom base ring. [Diagram 2] FIG. 1 is a cross-sectional view of a bottom base ring according to an embodiment of the prior art. [Diagram 3] A cross-sectional view of a bottom base ring according to an embodiment of the present invention (improved from an embodiment of the prior art). [Figure 4]FIG. 2 is a cross-sectional view of a bottom base ring according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] FIG. 3 is a cross-sectional view of a bottom base ring according to one embodiment of the present invention. As shown in this figure, the bottom base ring of this embodiment has a structure in which a round belt ring (3) is fitted into the bottom of the bottom base ring (2b) and a PTFE ring (4) is fitted into the top of the bottom base ring (2b). The bottom grips the floor surface with a round belt, and the top uses a PTFE ring to reduce the coefficient of friction when rotating the ball, thereby reducing the contact surface area between the ball and the bottom base ring (2b). FIG. 4 is a cross-sectional view of a bottom base ring according to one embodiment of the present invention. As shown in this figure, the bottom base ring of this embodiment has a round belt ring (3) fitted into the bottom of the bottom base ring (2c) and two PTFE rings (4) fitted into the top of the bottom base ring (2c). In this way, the bottom base ring is characterized by a structure in which the bottom has a round belt ring (3) for gripping the floor surface and two PTFE rings (4) are arranged on the top. ~Composition, Function and Effect~ When wiping or maintaining a bowling ball, the bottom base ring used can be either the one shown in Figure 3 or Figure 4. However, if the bottom base ring shown in Figure 4, which has two PTFE rings fitted into it, is used, the coefficient of friction with the ball is even smaller, allowing the bowling ball to rotate more smoothly, making for more efficient work. ~Specific examples and variations~ The bottom base rings in Figures 3 and 4 have a round belt ring fitted to the bottom and a PTFE ring fitted to the top, and are designed to be portable. However, if you are fixing it to a workbench for wiping balls, the round belt at the bottom is not necessary, so if you fix the bottom base ring with screws, you can provide even more stable work. [Explanation of symbols]

[0009] 1. Bowling ball 2 Bottom Base Ring 2a Bottom Base Ring 2b Bottom Base Ring 2c Bottom Base Ring 3 Round belt ring 4 PTFE ring

Claims

1. A smooth-rolling bottom base ring for bowling balls with a round belt ring at the bottom and a PTFE ring at the top

2. A smooth-rotating bottom base ring for bowling balls with a round belt ring at the bottom and two PTFE rings at the top.

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