Table tennis bat with improved middle layer

Abstract

The utility model provides a table tennis bat with an improved middle layer, which relates to the technical field of sports goods, and comprises a bat handle part and a bat surface part, the bat surface part is provided with the middle layer and a surface layer, and the middle layer and the surface layer form a composite layer; the middle layer is made of a TPE (thermoplastic elastomer) foaming material, and the TPE is foamed by adopting a supercritical foaming technology, so that the resilience force of the middle layer of the table tennis bat is met, the problem of heavy gram weight of the material can be solved, and the technical exertion of ping-pong sports is met.

Description

Technical Field

[0001] The utility model relates to the technology of sports goods, in particular to a table tennis racket with an improved middle layer. Background Art

[0002] The structure of a table tennis racket consists of a handle and a racket face, wherein the racket face is affixed with two layers of surface film, wherein the side that directly contacts the table tennis ball is called the surface layer, and the layer between the racket face and the surface layer is the middle layer.

[0003] The middle layer is mainly composed of a high-rebound foam layer, and its main function is to generate rebound force when the table tennis ball contacts the table tennis racket. In the prior art, the middle layer is composed of high-rebound sponge or EVA material, but the rebound force of EVA is insufficient. Although the rebound of the sponge can meet the requirements, the sponge with large rebound force has a large gram weight, and the sponge will also produce a pungent odor during use, which affects health.

[0004] Therefore, a table tennis racket with an improved middle layer is proposed. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the utility model provides a table tennis racket with an improved middle layer, which solves the problem that the material used in the middle layer of the table tennis racket cannot meet the requirements of table tennis sports.

[0007] (II) Technical solution

[0008] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] In the utility model, the table tennis racket with improved intermediate layer comprises a handle part and a racket face part, and is characterized in that the handle part comprises a handgrip component, and the racket face part is provided with an intermediate layer 21 and a surface layer 22, and the intermediate layer 21 and the surface layer 22 form a composite layer 23; the intermediate layer 21 is made of TPE (thermoplastic elastomer) foam material.

[0010] Furthermore, the hardness of the foamed board of the middle layer 21 is selected to be in the range of 15-80 degrees Shore.

[0011] Furthermore, the middle layer 21 is made of TPAE (polyamide elastomer) foam material.

[0012] Furthermore, the middle layer 21 is made of TPS (styrene elastomer) foam material.

[0013] Furthermore, the middle layer 21 is made of TPO (polyolefin elastomer) foam material.

[0014] Furthermore, the middle layer 21 is made of TPU (polyurethane elastomer) foam material.

[0015] Furthermore, the middle layer 21 is made of TPEE (polyester elastomer) foam material.

[0016] Furthermore, the middle layer 21 is made of ETPU (polyurethane elastomer) foam material.

[0017] Furthermore, the middle layer 21 is made of WHTPU (polyester-type aliphatic elastomer) foam material.

[0018] Furthermore, the middle layer 21 is made of ATPU (polyether aliphatic polyurethane elastomer) foam material.

[0019] (III) Beneficial effects

[0020] The utility model provides a table tennis racket with an improved middle layer. Compared with the prior art, it has the following beneficial effects:

[0021] By setting the middle layer to TPE (thermoplastic elastomer) foam material, the middle layer of TPE (thermoplastic elastomer) foam material can meet the requirements of table tennis for the rebound force when the table tennis ball touches the racket, while also solving the problem of material weight, thereby meeting the technical performance of table tennis. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 The schematic diagram of the structure of a table tennis racket with an improved middle layer.

[0024] Reference numerals:

[0025] 1. Racket handle; 11. Grip part; 2. Racket face; 20. Base plate; 21. Middle layer; 22. Surface layer; 23. Composite layer. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model is described clearly and completely. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] The embodiment of the present application solves the problem that the material used in the middle layer of the table tennis racket cannot meet the needs of table tennis sports by providing a table tennis racket with an improved middle layer, thereby improving the experience during table tennis sports.

[0028] The technical solution in the embodiment of the present application is to solve the above technical problems, and the overall idea is as follows:

[0029] When designing, the main consideration is that the middle layer of the existing table tennis racket is made of high-resilience sponge or EVA material. However, the resilience of EVA is not enough, and although the resilience of the sponge can meet the requirements, the gram weight of the sponge with high resilience is large, and the sponge will also produce a pungent odor during use, which affects the health of the body. Based on the above problems, the inventor found through research that replacing the material of the middle layer in the original technology with TPE (thermoplastic elastomer) foam material can effectively solve the problems of insufficient resilience and heavy gram weight of the surface layer of the existing table tennis racket.

[0030] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0031] Example:

[0032] like Figure 1 As shown, a table tennis racket with an improved intermediate layer comprises a handle portion 1 and a racket portion 2, wherein the racket portion 2 is provided with an intermediate layer 21 and a surface layer 22, and the intermediate layer 21 and the surface layer 22 form a composite layer 23;

[0033] The middle layer 21 is made of TPE (thermoplastic elastomer) foaming material. A physical foaming molding technology is used to replace the organic foaming agent with supercritical carbon dioxide or nitrogen, and the TPE (thermoplastic elastomer) is foamed under a certain pressure and temperature. The supercritical foaming molding process is a microporous foaming molding technology. This process does not have any formamide residue, is odorless and non-toxic, and has long-term protection for consumers and producers. No cross-linking agent is used, and it can be melted and recycled, which is green and environmentally friendly.

[0034] By setting the middle layer 21 to be a TPE (thermoplastic elastomer) supercritical foam material, the main function is to generate a greater rebound force when the table tennis ball contacts the table tennis racket, so that the table tennis technique can be more fully utilized.

[0035] First, a molding mold for 22 layers of film on the surface of a table tennis racket is made, so that one side of the film on the surface layer 22 after molding is flat, and the other side has evenly distributed column convex points.

[0036] Then, the middle layer 21 of the table tennis racket face 2 is made. The middle layer 21 implemented by the utility model needs to be uniformly foamed to form a plate material. The supercritical foaming process is used to make the middle layer plate foam more completely. The hardness of the foamed plate of the middle layer 21 is selected to be 15-80 degrees on Shore A. According to the requirements of different grades of table tennis rackets, a suitable hardness is selected, preferably 30-50 degrees. Then, these uniformly foamed plates are cut into sheets. Combined with the characteristics of table tennis, the thickness of the middle layer 21 is generally 1.0-4.5mm, preferably 2.0-2.5mm. These 2.0-2.5mm sheet middle layers 21 can be directly cut into a single middle layer 21 according to the shape of the bottom plate 20 of the table tennis racket face 2. Then, a single middle layer 21 and the surface layer 22 with the same shape as the bottom plate 20 of the table tennis racket are bonded to form a table tennis racket composite layer 23. Finally, the middle layer 21 side of the bonded composite layer 23 is bonded to the table tennis racket bottom plate 20 .

[0037] In order to improve production efficiency, a pair of table tennis racket surface layer 22 molding molds can form multiple pieces of table tennis racket surface layer 22 films at a time; the multiple pieces of table tennis racket surface layer 22 films with evenly distributed columnar protrusions are glued together with the table tennis racket middle layer 21 sheet to form a large composite layer 23, and then the large composite layer 23 is cut according to the shape of the table tennis racket bottom plate 20 to become a single composite layer 23, and finally, the middle layer 21 side of the single composite layer 23 is bonded to the table tennis racket bottom plate 20.

[0038] Based on the above embodiments, the intermediate layer 21 specifically includes the following embodiments:

[0039] Embodiment 1:

[0040] The middle layer 21 is made of TPAE (polyamide elastomer) foam material.

[0041] Embodiment 2:

[0042] The middle layer 21 is made of TPS (styrene elastomer) foam material.

[0043] Embodiment 3:

[0044] The middle layer 21 is made of TPO (polyolefin elastomer) foam material.

[0045] Embodiment 4:

[0046] The middle layer 21 is made of TPU (polyurethane elastomer) foam material.

[0047] Embodiment 5:

[0048] The middle layer 21 is made of TPEE (polyester elastomer) foam material.

[0049] Embodiment 6:

[0050] The middle layer 21 is made of ETPU (polyurethane elastomer) foam material.

[0051] Embodiment 7:

[0052] The middle layer 21 is made of WHTPU (polyester-type aliphatic elastomer) foam material.

[0053] Embodiment 8:

[0054] The middle layer 21 is made of ATPU (polyether aliphatic polyurethane elastomer) foaming material.

[0055] Embodiment 9:

[0056] The gripping component 11 of the handle 1 is formed by injection molding.

[0057] In summary, compared with the prior art, the present invention has the following beneficial effects:

[0058] 1. By setting the middle layer 21 to TPE (thermoplastic elastomer) supercritical foaming material, it has the characteristics of light weight, uniform distribution of tiny pores, no odor, and non-toxicity. Its main function is to generate greater rebound force when the table tennis ball contacts the table tennis racket, so that the table tennis technique can be more fully utilized.

[0059] 2. By setting the gripping component 11 of the handle 1 to be injection molded, the process of making the gripping component of the table tennis racket is simplified, which saves wood and thus reduces the production cost of the table tennis racket.

[0060] In this embodiment, the surface layer is made of rubber material; in practical applications, the material of the surface layer can be further expanded according to the characteristics of table tennis.

[0061] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0062] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A table tennis racket with an improved middle layer, comprising a handle portion (1) and a racket portion (2), characterized in that: The handle portion (1) comprises a gripping component (11), and the racket portion (2) is provided with an intermediate layer (21) and a surface layer (22), wherein the intermediate layer (21) and the surface layer (22) form a composite layer (23); The middle layer (21) is made of TPE foam material or ATPU foam material; The surface layer (22) has a flat film on one side and evenly distributed column bumps on the other side; The hardness of the foamed board of the middle layer (21) is selected to be in the range of 15-80 degrees Shore.

2. A table tennis racket with an improved middle layer as claimed in claim 1, characterized in that: The middle layer (21) is made of TPAE foaming material.

3. A table tennis racket with an improved middle layer as claimed in claim 1, characterized in that: The middle layer (21) is made of TPS foaming material.

4. A table tennis racket with an improved middle layer as claimed in claim 1, characterized in that: The middle layer (21) is made of TPO foam material.

5. A table tennis racket with an improved middle layer as claimed in claim 1, characterized in that: The middle layer (21) is made of TPU foam material.

6. A table tennis racket with an improved middle layer as claimed in claim 1, characterized in that: The middle layer (21) is made of TPEE foaming material.

7. A table tennis racket with an improved middle layer as claimed in claim 1, characterized in that: The middle layer (21) is made of ETPU foaming material.

8. A table tennis racket with an improved middle layer as claimed in claim 1, characterized in that: The middle layer (21) is made of WHTPU foaming material.

Images