CN220159183U - Pike racket with handle inner core structure - Google Patents
Pike racket with handle inner core structure Download PDFInfo
- Publication number
- CN220159183U CN220159183U CN202321568293.4U CN202321568293U CN220159183U CN 220159183 U CN220159183 U CN 220159183U CN 202321568293 U CN202321568293 U CN 202321568293U CN 220159183 U CN220159183 U CN 220159183U
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- Prior art keywords
- handle
- core
- racket
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- finished product
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- 241000656145 Thyrsites atun Species 0.000 title description 2
- 239000000463 material Substances 0.000 claims description 24
- 239000003733 fiber-reinforced composite Substances 0.000 claims description 7
- 239000006260 foam Substances 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000005187 foaming Methods 0.000 abstract description 18
- 238000004519 manufacturing process Methods 0.000 abstract description 13
- 238000010438 heat treatment Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 230000035939 shock Effects 0.000 abstract description 6
- 238000007664 blowing Methods 0.000 abstract description 2
- 239000011265 semifinished product Substances 0.000 description 43
- 239000000835 fiber Substances 0.000 description 20
- 238000000465 moulding Methods 0.000 description 14
- 229920000049 Carbon (fiber) Polymers 0.000 description 9
- 239000004917 carbon fiber Substances 0.000 description 9
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 9
- 239000002657 fibrous material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000071 blow moulding Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000010097 foam moulding Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 238000009757 thermoplastic moulding Methods 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Abstract
The utility model discloses a pith with a handle inner core structure and a manufacturing method thereof, mainly comprising a racket face and a handle formed at one end of the racket face, wherein a foam-formed core part is arranged in the handle to have a shock absorbing effect, the core part is integrally and firmly attached in the handle, and in addition, the tail end of the handle is integrally formed with a rear sleeve part, so that the procedures of additionally assembling the rear sleeve part can be reduced in the process, the strength can be improved, the weight of the handle can be reduced, and the manufacturing method can avoid the air leakage phenomenon possibly occurring during the air blowing forming by heating and foaming forming, thereby providing stable production quality.
Description
Technical Field
The utility model relates to a picocell with a handle inner kernel structure.
Background
The existing pitchbeat is made of carbon fiber, and is mainly manufactured in a blow molding mode, however, the air leakage phenomenon is easy to occur in the manufacture of the pitchbeat in the blow molding mode, and the quality of the pitchbeat is further affected. The other existing carbon fiber material racket adopts one-step foaming molding on the handle part and the racket surface, the internal structure of the existing carbon fiber material racket cannot provide a shock absorbing effect, so that the existing carbon fiber material racket still has an improved space, the rear sleeve structure of the existing carbon fiber material racket handle part is additionally arranged and fixed from the outside, the additionally arranged rear sleeve can be separated due to long-term use, temperature or impact.
Therefore, aiming at the problems of the prior structure, an innovative structure with more ideal practicability is developed, so that the consumers are in great favor, and the related industries need to develop the breakthrough targets and directions; in view of this, the inventor has conducted the experience of related product manufacturing development and design for many years, and has finally obtained a practical utility model after detailed design and careful evaluation with respect to the above-mentioned objects.
Disclosure of Invention
Therefore, the main objective of the present utility model is to provide a pith with a handle and kernel structure, which solves the problems that the handle and the racket face of the prior art pith made of carbon fiber material are formed at one time without shock absorbing effect, and the rear cover structure of the handle of the prior art pith made of carbon fiber material is externally and additionally fixed, so that the whole racket generates additional weight, and the strength after being additionally arranged is likely to have room for improvement.
The utility model provides a picocell with a handle inner kernel structure, which comprises the following steps:
a beat surface;
the handle part is positioned at one end of the racket face and is combined with the racket face into a whole, the handle part comprises a core part and a shell part, the core part is a foam body, the shell part is made of fiber reinforced composite material, and the shell part is coated on the peripheral surface of the core part and is tightly combined with the core part.
Wherein the core preferably has a density of 0.17g/cm to 0.9g/cm 3 。
Preferably, the end of the handle away from the racket face is provided with a rear sleeve part, and the width of the rear sleeve part gradually expands towards the end away from the racket face.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model relates to a pitman with a handle inner core structure, wherein the handle is provided with an inner foaming body, namely a core part formed by plastic foaming, which has a shock absorbing effect, the core part is integrally and firmly attached to the inner wall surface of a containing chamber space of the shell part, a rear sleeve part can be integrally formed at the tail end of the handle, the process of additionally assembling the rear sleeve part can be reduced, the strength can be improved, the weight of the handle can be reduced, the preformed core part is also beneficial to manufacturing the handle with a special shape, and the manufacturing of the pitman is realized by heating foaming and forming, so that the quality of a racket is not influenced by the air leakage phenomenon caused by air blowing and forming.
Drawings
Fig. 1 is a diagram of a core mold made of the pitman of the present utility model.
Fig. 2 is a perspective view of a core blank of the present utility model.
Fig. 3 is a cross-sectional view of a core blank of the present utility model.
Fig. 4 is a cross-sectional view of a core blank coated carbon fiber yarn blank of the present utility model.
FIG. 5 is a view of a racquet molding mold of the present utility model, including a molding cavity for the face and a molding cavity for the handle.
FIG. 6 is a foam molding view of a picocell racket of the present utility model, including a racket face and a handle.
Fig. 7 is a cross-sectional view of the handle of fig. 6.
FIG. 8 is a block diagram of a process for manufacturing the present utility model.
Reference numerals illustrate: a-core mold; b-core mold cavities; 30-core semifinished product; 31-a link end; 32-half forming the rear sleeve part; 40-fiber yarn semi-finished product; c-racket forming mould; d, forming a mold cavity by beating the surface; e-forming a mold cavity by a handle part; 30A-core; 40A-shell portion; 41A-a chamber space; 50-clapping; 60-rear sleeve part; 70-handle.
Detailed Description
Referring to fig. 1-7, there are shown preferred embodiments of the picobat with a handle core structure according to the present utility model, and these embodiments are provided for illustrative purposes only, and the claims should not be limited by the specific embodiments or descriptions but rather should be construed to control the claims. The pith with the handle inner core structure comprises a racket face 50 and a handle 70.
The racket face 50 contains a fiber reinforced composite material, which can be made of a fiber reinforced composite material alone or made of a fiber reinforced composite material combined with other materials such as plastic, rubber, metal or wood, and the fiber reinforced composite material is a resin-impregnated fiber material such as carbon fiber composite material which is formed by heating and pressurizing a fiber yarn semi-finished product.
The handle 70 is located at the lower end of the racket face 50 and is integrated with the racket face 50, the handle 70 comprises a shell portion 40A and a core portion 30A, wherein a rear sleeve portion 60 is integrally formed at the end of the handle 70, a chamber space 41A is formed inside the shell portion 40A, a core portion 30A is fully accommodated inside the chamber space 41A, the core portion 30A is formed by foaming a foaming material, and the core portion 30A is integrally and firmly attached to the inner wall surface of the chamber space 41A of the shell portion 40A. It should be noted that the core 30A in the present embodiment is entirely covered with the shell portion 40A, and the core 30A is not exposed to the surface of the pitot, however, if the shell portion 40A covers only the peripheral surface of the core 30A, it is not necessary to bond the upper end of the core 30A to the racket face 50 with the joint end 31 or expose the lower end of the core 30A from the lower end of the handle portion 70.
Preferably, wherein the core 30A has a density of 0.17g/cm 3 ～0.9g/cm 3 。
Referring to fig. 1 to 4, which are schematic views of the process of manufacturing the handle, a plurality of core cavities B are provided in the core mold a in the initial stage of manufacturing, as shown in fig. 1, after the foaming material is placed in the core cavities B, the core mold a is heated to foam the foaming material to form a core semi-finished product 30, the core semi-finished product 30 is only foam-molded to a degree of 30% -80%, preferably, the foaming degree of the core semi-finished product 30 is 50%, as shown in fig. 2, the core semi-finished product 30 has a connecting end 31 and a semi-molded sleeve portion 32 integrally formed at the end position of the core semi-finished product 30, as shown in fig. 3 and 4, the surface of the core semi-finished product 30 is coated with one or more layers of fiber yarn semi-finished products 40, and the fiber yarn semi-finished product 40 is soft before being formed by non-heating and can be hardened by thermoplastic molding.
Referring to fig. 5, the core semi-finished product 30 of the semi-finished product 40 of the covered fiber yarn is further placed into a stem forming cavity E of a racket forming mold C, the mold is in a top-bottom cover structure, a racket forming cavity D is formed at a position opposite to the top end of the stem forming cavity E, the racket semi-finished product containing the semi-finished product of the fiber yarn is formed into a racket surface 50 by heating in the racket forming cavity D, and the core semi-finished product 30 of the semi-finished product 40 of the covered fiber yarn in the stem forming cavity E is synchronously re-foamed to a foaming degree of 100%.
It should be noted that, in the molding of the fiber-reinforced composite material, it is preferable to perform the pressurization while heating, and the molding of the racket face 50 may be performed by adding a foaming material to the racket face semi-finished product, so that the racket face is suitable for the synchronous molding with the handle portion, but it is not necessary to use a foaming material for the racket face, and to apply the pressurization by gas or other means.
Referring to fig. 6, when the racquet formed by the racket forming mold C is completed and taken out, one end of the racket face 50 is integrally combined with the handle 70 having the entire foam-forming core, and the handle 70 is once combined with the racket face 50 by the racket forming mold C and heat-hardened to form.
Referring to fig. 7, which is a cross-sectional view of the handle 70 of fig. 6, the handle 70 includes a core portion 30A and a shell portion 40A covering the outer shaping, the shell portion 40A is formed by heating and pressurizing a semi-finished fiber yarn material, the pressure during forming the shell portion 40A is derived from re-foaming of the core portion 30A, so that the formed shell portion 40A is tightly combined with the core portion 30A, the handle 70 has a shock absorbing effect by the core portion 30A made of foam inside, the core portion 30A is integrally and firmly attached to the inner wall surface of the chamber space 41A of the shell portion 40A, and the end of the handle 70 is integrally formed with a rear sleeve portion 60, the width of the rear sleeve portion 60 towards the end far from the racket face 50 is gradually widened, besides the procedure of additionally assembling the rear sleeve can be reduced in the manufacturing process, the strength can be improved, and the weight of the handle 70 can be reduced.
Referring to fig. 8, the present utility model also discloses a method for manufacturing a pith with a handle core structure, comprising the following steps:
A. preparing a core: a core mold a is prepared, a core mold cavity B is formed into a core semi-finished product 30 by putting a thermoplastic foaming material into and heating and molding, the core semi-finished product 30 is formed by foaming and molding to 80% or less, for example, 50% degree, the core semi-finished product 30 is formed by foaming and molding to have a connecting end 31 and a semi-molded rear sleeve part 32 integrally molded at the end position of the core semi-finished product 30, and the semi-molded rear sleeve part 32 has a width gradually expanding towards the end.
B. Stacking the fiber materials: the core semi-finished product and the fiber yarn semi-finished product are arranged in a racket molding die together, specifically, the core semi-finished product 30 can be coated in one or a plurality of layers of fiber yarn semi-finished products 40, and the fiber yarn semi-finished products 40 are in a soft state before being heated and molded and then are placed in the racket molding die together. The racket forming die C is provided with a handle forming die cavity E and a racket face forming die cavity D which is communicated with the handle forming die cavity E, the core semi-finished product 30 of the coated fiber yarn semi-finished product 40 is placed into the handle forming die cavity E, the connecting end faces the racket face forming die cavity D, and meanwhile, the prefabricated racket face semi-finished product is also placed into the racket face forming die cavity D, or the fiber yarn semi-finished product is directly stacked into the racket face forming die cavity D to be prepared into a handle and a racket face.
C. And (5) heating and forming: the racket molding die C is heated, the fiber yarn material semi-finished product is heated to start molding, the core semi-finished product 40 is re-foamed and molded until the foaming degree is 100% or close to 100%, the re-foamed core semi-finished product provides pressure to subject the fiber yarn material semi-finished product to compression molding, the core semi-finished product is finally molded into a core part, the fiber yarn material semi-finished product is molded into a shell part, and the shell part and the racket surface are integrally combined because the shell part and the racket surface are molded together.
Therefore, the handle has a shock absorbing effect by internally containing the core 30A formed by the foam, the core 30A is integrally and firmly attached to the inside of the shell, and the tail end of the handle is integrally formed with the rear sleeve part 60, so that the process of additionally assembling the rear sleeve is reduced, the strength is improved, and the weight of the handle 70 is reduced.
In addition, the core semi-finished product 30 can be utilized to pre-form the general structural shape required by the final handle, such as a semi-formed rear sleeve part, after the fiber materials are stacked, the fiber yarn semi-finished product naturally forms a gradually-expanded tail end shape, and after the fiber yarn semi-finished product is heated and formed, the fiber yarn semi-finished product has an integrally-formed rear sleeve part, and the core semi-finished product provides a framework-like function, so that the soft fiber yarn semi-finished product can be accurately arranged and formed into a preset target structure, the production difficulty is reduced, and the variability of the handle shape is improved.
Claims (3)
1. A pitman having a handle core structure, comprising:
a beat surface;
the handle part is positioned at one end of the racket face and is combined with the racket face into a whole, the handle part comprises a core part and a shell part, the core part is a foam body, the shell part is made of fiber reinforced composite material, and the shell part is coated on the peripheral surface of the core part and is tightly combined with the core part.
2. A picocell beat having a handle kernel structure as defined in claim 1, wherein: the core had a density of 0.17g/cm 3 ～0.9g/cm 3 。
3. A picocell beat having a handle kernel structure as defined in claim 1, wherein: the handle part is provided with a rear sleeve part at one end far away from the racket surface, and the width of the rear sleeve part gradually expands towards one end far away from the racket surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321568293.4U CN220159183U (en) | 2023-06-19 | 2023-06-19 | Pike racket with handle inner core structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321568293.4U CN220159183U (en) | 2023-06-19 | 2023-06-19 | Pike racket with handle inner core structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220159183U true CN220159183U (en) | 2023-12-12 |
Family
ID=89060188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321568293.4U Active CN220159183U (en) | 2023-06-19 | 2023-06-19 | Pike racket with handle inner core structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220159183U (en) |
-
2023
- 2023-06-19 CN CN202321568293.4U patent/CN220159183U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |