Kendama ball
By using a double-layer injection molding design with inner and outer molds and a ball structure with an internal silicone ring, the problems of excessive weight and unstable ball stopping in fencing ball are solved, achieving the effects of weight reduction, deformation prevention, and improved stability.
Patent Information
- Application Number
- PCT/CN2024/097413
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-06-05
- Publication Date
- 2025-12-11
AI Technical Summary
The existing fencing balls are too heavy, easily deformed, and have unstable stopping power, affecting the performance and the user's health.
It adopts a double-layer injection molding design with inner and outer molds. The inner sphere is hollow, and the outer sphere has serrations and a silicone ring. The soft silicone ring and reinforcing ribs are combined to enhance stability and reduce weight.
This design achieves weight reduction and deformation prevention of the sphere, enhances the friction between the sphere and the sword handle and improves the stability of stopping the ball, thus improving the user experience and safety.
Smart Images

Figure CN2024097413_11122025_PF_FP_ABST
Abstract
Description
A ball for sword ball
[0001] The application belongs to the technical field of balance type toys, and particularly relates to a ball for sword ball. BACKGROUND
[0002] In recent years, sword ball (ball) has been popular and loved by people all over the world as a competitive game, and has also begun to be popular in China. The ball is accurately placed on the size of the dish and the sword tip by using the skill of wrist, and the ball can also be dropped to the upper, lower, left, right and other parts of the sword handle by using certain skills. The ball is an important part of the sword ball.
[0003] At present, the ball for sword ball is generally solid. Since the overall weight of the ball is heavy, when the ball is swung and the ball is dropped into the sword handle, the ball is easily deformed after long-term use due to the gravity and impact force of the ball itself, which affects the use. Secondly, since the surface of the ball and the sword handle is smooth, the ball is not stable when stopping, which affects the overall use effect.
[0004] Therefore, the application provides a ball for sword ball. SUMMARY
[0005] The application aims to solve the above problems, and provides a ball for sword ball.
[0006] The application adopts the following technical scheme: a ball for sword ball comprises:
[0007] The ball comprises an inner ball and an outer ball wrapped on the outer end of the inner ball, wherein:
[0008] The inner ball and the outer ball are designed as a double-layer structure formed by twice injection molding.
[0009] One end of the outer ball is recessed with a circular truncated cone-shaped through hole, and the outer edge of the upper side of the circular truncated cone-shaped through hole is provided with a tooth ring on the outer wall of the outer ball.
[0010] In a preferred embodiment, a silica gel ring is embedded on the inner wall of the upper side of the circular truncated cone-shaped through hole.
[0011] In a preferred embodiment, the inner ball comprises an upper half ball and a lower half ball which can be combined, and the upper half ball and the lower half ball are both provided with a hollow cavity.
[0012] In a preferred embodiment, the center of the upper half ball and the lower half ball is provided with a jack which is on the same vertical axis as the circular truncated cone-shaped through hole.
[0013] In a preferred embodiment, the bottom surface of the socket in the lower hemisphere is provided with a bearing clamping groove, and a through hole for threading is provided below the bearing clamping groove in the lower hemisphere and the outer sphere.
[0014] In a preferred embodiment, a plurality of reinforcing ribs are integrally formed on the inner walls of the upper hemisphere and the lower hemisphere.
[0015] In summary, due to the adoption of the above technical solutions, the present application has the following advantages:
[0016] 1. In the present application, the inner and outer mold double-layer injection molding process is adopted for the whole sphere, so that the hollow sphere can have the same quality as the solid sphere, the overall weight can be greatly reduced, and the problem of the solid sphere being too heavy and deformed to affect the use of the user can be effectively solved.
[0017] 2. In the present application, the soft silica gel ring is embedded in the sphere, which can provide strong anti-slip effect when the ball hole stops at various parts of the hilt, and can also avoid the additional elasticity caused by the silica gel ring when the ball is caught, which affects the ball catching effect.
[0018] 3. In the present application, the tooth pattern is designed on the surface of the outer sphere, which can enhance the friction when the sphere contacts the hilt, thereby enhancing the stability of the whole sphere when stopping the ball, and also realizing the difference in appearance between products. BRIEF DESCRIPTION OF DRAWINGS
[0019] Fig. 1 is a schematic diagram of the overall structure of the present application;
[0020] Fig. 2 is a sectional plane of the present application;
[0021] Fig. 3 is a schematic diagram of the exploded plane structure of the present application.
[0022] Marked in the figure: 1-outer sphere, 101-tooth pattern, 102-silica gel ring, 103-circular cone-shaped through hole, 2-upper hemisphere, 3-lower hemisphere, 301-bearing clamping groove, 4-hollow cavity, 5-socket, 6-reinforcing rib. DETAILED DESCRIPTION
[0023] In order to make the purpose, technical scheme and advantages of the present application more clear and explicit, the present application will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.
[0024] With reference to FIGS. 1-3, a kind of sword jade ball, comprising: ball, including inner sphere and the outer sphere 1 of the outer end of inner sphere, inner sphere and the outer sphere 1 is formed by the double-layer design of the inner and outer mold of two injection molding cooperation, inner sphere includes the detachable combination of upper hemisphere 2 and lower hemisphere 3, and the hollow cavity 4 is arranged in upper hemisphere 2 and lower hemisphere 3, the whole ball adopts the double-layer injection molding process of inner and outer mold, can be hollow ball to solid ball quality (similar to the strength and solid feeling of solid ball), can greatly reduce the weight of the whole, can effectively solve the problem of solid ball overweight and deformation and affect user use.
[0025] Wherein, the bottom surface of the upper hemisphere 2 is concave with an annular slot, and the upper end surface of the lower hemisphere 3 is provided with an annular protrusion inserted into the annular slot, so as to combine the upper hemisphere 2 and the lower hemisphere 3 into a whole, and the detachable design of the inner sphere facilitates the injection molding of the upper hemisphere 2 and the lower hemisphere 3.
[0026] In an embodiment, one end of the outer sphere 1 is concave with a circular truncated hole 103, and the upper outer edge of the circular truncated hole 103 is annularly provided with a tooth 101 on the outer wall of the outer sphere 1. The designed tooth 101 can enhance the friction when the ball contacts the sword handle, thereby enhancing the stability of the whole ball stop, and also realizing the difference in appearance between products.
[0027] In the embodiment, the upper inner wall of the circular truncated hole 103 is embedded with a silica gel ring 102, and the silica gel ring 102 is made of soft silica gel material. The added silica gel ring 102 can have super strong anti-slip effect when the circular truncated hole 103 stops at various parts of the sword handle, and also can avoid the extra elasticity of the silica gel ring when the ball is contacted, which affects the ball catching effect.
[0028] In the embodiment, the center of the upper hemisphere 2 and the lower hemisphere 3 is provided with a plug hole 5 which is on the same vertical axis as the circular truncated hole 103, and the plug hole 5 can meet the requirement of inserting the ball into the sword handle (not shown in the figure).
[0029] In the embodiment, the bottom surface of the plug hole in the lower hemisphere 3 is provided with a bearing clamping groove 301, and a through hole for threading is provided below the bearing clamping groove 301 on the lower hemisphere 3 and the outer sphere 1. The bearing clamping groove 301 is used to fix the outer ring of the bearing of the connecting line.
[0030] In the embodiment, a plurality of reinforcing ribs 6 are integrally formed on the inner wall of the upper hemisphere 2 and the lower hemisphere 3, which can make the upper hemisphere 2 and the lower hemisphere 3 have higher strength and be less likely to deform.
[0031] The inner and outer mold double-layer injection molding process is adopted for the whole ball, the hollow ball can be made to have the solid ball texture, the weight of the whole ball can be greatly reduced, and the problem that the solid ball is too heavy and deformed to affect the use of the user can be effectively solved.
[0032] Secondly, the soft silica gel ring 102 is arranged in the ball, when the ball hole stops at various positions of the sword handle, the super strong anti-skid effect is achieved, the tooth pattern 101 is designed, the friction force when the ball and the sword handle contact is enhanced, the stability of the ball in the whole ball is enhanced, and the use effect of the whole ball is improved.
[0033] The above only describes the preferred embodiments of the present application and is not used to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims
1. A ball for a sword, characterized by comprising: The utility model relates to a ball, which comprises an inner ball and an outer ball covering the outer end of the inner ball, wherein: The inner ball and the outer ball are formed into a double-layer design by a two-shot injection molding process; One end of the outer ball is inwardly recessed with a circular truncated cone-shaped through hole, and the upper outer edge of the circular truncated cone-shaped through hole is annularly provided with a tooth pattern on the outer wall of the outer ball. A silica gel ring is embedded on the upper inner wall of the circular truncated cone-shaped through hole.
2. A ball for a sword-tsuba according to claim 1, characterized in that: The inner ball comprises detachably combined upper and lower hemispheres, and each of the upper and lower hemispheres is provided with a hollow cavity.
3. The ball according to claim 1, wherein: the spherical surface is formed by a plurality of spherical segments each having a spherical surface of a different radius. The center of each of the upper and lower hemispheres is provided with a jack that is on the same vertical axis as the circular truncated cone-shaped through hole. 4. A ball according to claim 3, wherein: The bottom surface of the jack in the lower hemisphere is provided with a bearing clamping groove, and a through hole for threading is provided below the bearing clamping groove in the lower hemisphere and the outer ball.
5. The ball according to claim 3, wherein: the first and second spherical surfaces are formed by a plurality of spherical segments. A plurality of reinforcing ribs are integrally formed on the inner wall of each of the upper and lower hemispheres.
6. The ball according to claim 3, wherein:
Citation Information
Patent Citations
Intelligent kendama
CN104606904A
Sphere for Jiuyu
CN117122937A
It is beautiful to be equipped with sword of preventing knotting device
CN207101893U
sword ball
JP1992044974U
Cup and ball wherein factor of three-dimensional puzzle is added
JP2002360754A