CN1062093A - Making method for seamless triangle portion of aluminium alloy tennis racket - Google Patents
Making method for seamless triangle portion of aluminium alloy tennis racket Download PDFInfo
- Publication number
- CN1062093A CN1062093A CN91105360A CN91105360A CN1062093A CN 1062093 A CN1062093 A CN 1062093A CN 91105360 A CN91105360 A CN 91105360A CN 91105360 A CN91105360 A CN 91105360A CN 1062093 A CN1062093 A CN 1062093A
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- CN
- China
- Prior art keywords
- adhesive layer
- triangle portion
- foaming body
- tennis racket
- fiber adhesive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- Moulding By Coating Moulds (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to making method for seamless triangle portion of aluminium alloy tennis racket, it is the fiber adhesive layer is wrapped on the foaming body and is placed between the frame, and the clamping end is wound in the tennis racket that the press quenching moulding of heating behind the frame can make seamless triangle portion.This method has overcome the tennis racket triangle portion seam and unstable defective.
Description
The invention relates to a kind of making method for seamless triangle portion of aluminium alloy tennis racket.
Existing aluminium alloy tennis racket is made up of frame and triangle portion.And triangle portion and frame are to lock triangle portion by screw by the frame outside again after making respectively to make it to become one.Thisly bounce repeatedly in the process of tennis at racket, very easily make triangle portion and frame produce the gap with screw fastening method, after the long-time use, triangle portion even may come off from frame.In addition, existing triangle portion is merely by thermoplastic plastic's ejection formation, since screw, the aluminium alloy frame, and the difference on thermoplastic plastic three's hardness causes between them loosening easily.Moreover, fixing triangle portion and frame has tangible lapping defect slit with locking mode, this has influenced the outward appearance of racket.
The invention is intended to propose a kind of making method for seamless triangle portion of aluminium alloy tennis racket, to reach the promptly firmly jointless again effect of triangle portion.
The invention is finished like this: make the length of foaming body approximate the length of tennis racket triangle portion, the length of fiber adhesive layer is long than foaming body, the fiber adhesive layer is wrapped on the foaming body, end along fiber adhesive layer two ends to foaming body, fiber adhesive layer port is cut off formation clamping end, and the foaming body that parcel is good places between the frame, makes the clamping end be wound in frame, insert in the mould pressurized, heated again and make it sclerosis, can make not only firmly but also jointless aluminium alloy tennis racket.
The fiber adhesive layer that the fiber adhesive layer can preferentially adopt carbon fiber-containing cloth and thermosetting resin to form.
The optimum condition of moulding sclerosis is that pressure is 120kgf/cm
2, temperature is 150 ℃, molding time is 15min.
Because the invention abandoned traditional locking mode, adopt pressurized, heated behind the fiber adhesive layer parcel foaming body, utilize foaming body toward combining more firm between the two ends expansion makes triangle portion and frame and not having seam.
Below in conjunction with drawings and Examples the invention is further described.
Fig. 1 is the foaming body that is enclosed with the fiber adhesive layer.
Fig. 2 is the fiber adhesive layer foaming body that contains the clamping end.
Fig. 3 is the part-structure cutaway view between triangle portion and the frame.
Fig. 4 is the outside drawing of the tennis racket that makes of the invention.
Among the above-mentioned figure, the 1st, foaming body, the 2nd, fiber adhesive layer, the 3rd, the triangle portion of tennis racket, the 4th, clamping end, the 5th, frame.
With reference to Fig. 1, the fiber adhesive layer is wrapped on the foaming body, make the length of foaming body approximate the length of triangle portion, foaming body can be selected EVA(ethylene-vinyl acetate fat for use) or the Polyuretsthane(polyurethane), the fiber adhesive layer can be selected carbon fiber or glass fibre or Kevler(gram Wella for use) fiber and thermosetting resin composition.Thermosetting resin can be selected epoxy resin or thermoplastic plastic rubber for use.Because each fiber of fiber adhesive layer all contains thermosetting resin, thereby the fiber adhesive layer possesses high viscosity, easily sticks on the foaming body.Make and wrap up fiber adhesive layer more than four layers on the foaming body at least.
With reference to Fig. 2, Fig. 3 ends along fiber adhesive layer two ends to foaming body two ends, each is cut off towards fiber adhesive layer port level, forms up and down to being referred to as the clamping end, then, insert between the frame end, the clamping end is twined on the side frame can form triangle portion more than at least two layers simultaneously.Said process must be made before the sclerosis of fiber adhesive layer.Then whole racket is placed in the mould pressurized, heated to make it sclerosis, its pressure is 120kgf/cm
2, temperature is 150 ℃, the time is 15min.Because the effect of temperature and pressure, foaming body expands, and because of mould has limited the peripheral shape of triangle portion, expands towards both sides so control foaming body indirectly, adds that the length of original foaming body is bordering on frame, produces 10kgf/cm so foaming body expands
2Pressure act on the junction of triangle portion and frame, as if after 15 minutes, the fiber adhesive layer promptly reaches the sclerosis form, can find out seamless triangle portion, integrated outward appearance is arranged.
In the foregoing description owing to used foaming body and carbon fiber, carbon fiber has high strength, lightweight characteristics, adding to soak with thermosetting resin combines closely fiber adhesive layer and foaming body, the clamping end is wrapped on the frame again, makes triangle portion reach incorporate degree with engaging of frame, in the pressurized, heated process, foaming body is toward the two ends prolonged expansions, makes triangle portion more can be engaged on the frame securely and do not have the gap.
Claims (3)
1, a kind of making method for seamless triangle portion of aluminium alloy tennis racket is characterized in that:
1) be enclosed with fiber adhesive layer 2 on the foaming body 1, the length of foaming body approximates the length of tennis racket triangle portion 3, and the length of fiber adhesive layer is long than foaming body,
2) end along fiber adhesive layer two ends to foaming body two ends, fiber adhesive layer port is cut off formed clamping end 4, then,
3) will wrap up good foaming body and place 5 of frames, the clamping end will be wound on the frame, then,
4) whole racket is placed the mould pressurized, heated can harden into no seam triangle portion.
2,, it is characterized in that the fiber adhesive layer can be made up of carbon fiber-containing cloth and thermosetting resin according to the method for claim 1.
3,, it is characterized in that best briquetting pressure is 120kgf/cm according to the method for claim 1
2, temperature is 150 ℃, molding time is 15min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN91105360A CN1062093A (en) | 1991-07-29 | 1991-07-29 | Making method for seamless triangle portion of aluminium alloy tennis racket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN91105360A CN1062093A (en) | 1991-07-29 | 1991-07-29 | Making method for seamless triangle portion of aluminium alloy tennis racket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1062093A true CN1062093A (en) | 1992-06-24 |
Family
ID=4907107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN91105360A Pending CN1062093A (en) | 1991-07-29 | 1991-07-29 | Making method for seamless triangle portion of aluminium alloy tennis racket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1062093A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8211266B2 (en) | 2007-08-01 | 2012-07-03 | Yonex Kabushiki Kaisha | Badminton racket and manufacturing method of badminton racket |
| CN102631768A (en) * | 2012-03-19 | 2012-08-15 | 刘自平 | Method for manufacturing solid racket |
| CN103239840A (en) * | 2012-12-28 | 2013-08-14 | 徐建昇 | Racket frame manufacturing method |
-
1991
- 1991-07-29 CN CN91105360A patent/CN1062093A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8211266B2 (en) | 2007-08-01 | 2012-07-03 | Yonex Kabushiki Kaisha | Badminton racket and manufacturing method of badminton racket |
| CN101808699B (en) * | 2007-08-01 | 2012-09-05 | 尤尼克斯株式会社 | Badminton racket and manufacturing method of badminton racket |
| CN102631768A (en) * | 2012-03-19 | 2012-08-15 | 刘自平 | Method for manufacturing solid racket |
| CN103239840A (en) * | 2012-12-28 | 2013-08-14 | 徐建昇 | Racket frame manufacturing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |