CN2187963Y

CN2187963Y - Improved composite racket frame

Info

Publication number: CN2187963Y
Application number: CN94202473U
Authority: CN
Inventors: 尤景三
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-01-17
Filing date: 1994-01-17
Publication date: 1995-01-25
Anticipated expiration: 2004-01-17

Abstract

The utility model discloses an improved composite material racket frame, comprising a first tubular body for forming a head part and a mandrel part of the racket frame, a second tubular body which is extended outwards from one end of the first tubular body which forms the mandrel part, a third tubular body which is coated on the surface of the second tubular body, and a holding part of the racket frame which is formed by the second tubular body and the third tubular body. The first tubular body and the second tubular body comprise first external layer shell and second external layer shell which are made of plastic composite materials of long fibre reinforced thermosetting resin respectively. The layers of the second external layer shell is fewer than that of the first external layer shell. The third tubular body comprises a third external layer shell which is made of the plastic composite materials of long fibre reinforced thermosetting resin. The third external layer shell is stuck on the surface of the second external layer shell.

Description

Improved composite racket frame

The utility model is relevant with sporting racket, particularly about a kind of racket frame with compound of improvement.

Commercially available racket frame with compound all is bent into head, footstalk portion and the grip part of this framework with a multi-lamellar tubular shell at present.This multi-lamellar tubular shell contains the stacked coiling of the long fibre that is soaked with thermosetting resin by many usually and forms.Therefore, in fact, aforementioned racket frame is to extend along the entire length of framework with the sandwich construction of uniformity.From the viewpoint of shock transfer, this kind uniformity and integrated sandwich construction can make Sasser transmit unimpededly.That is to say to have the racket frame with compound of aforementioned sandwich construction, it is in square stance, and the Sasser that is produced can reach unimpededly directly along head, the footstalk portion of this framework and reach the grip part, thereby makes the person's of holding the bat hand be subjected to athletic injury.

The 5th, 071, No. 125 patent cases of No. the 81201373rd, the Taiwan and the U.S. propose to solve the technical scheme of this problem.The principal character of this two patents case is racket frame is divided into two independent sectors made from unlike material, and wherein an independent sector constitutes the head and the footstalk portion of racket frame, and another independent sector then constitutes the grip part of framework.By this kind structure, in the racket frame square stance, the Sasser that produces will have most of can the obstruction in the junction of this two independent sector, and so, the concussion that the person's of holding the bat hand is experienced is less.Only, show,,, make whole racket frame rigidity weaken because framework is divided into two independent sectors though this kind structure can reduce to be passed to from head the concussion of grip part according to practical experience, in square stance, counterattack ball that can't be powerful.What is more, and this kind structure will make stress concentrate on the junction of two independent sectors, and after using a period of time, racket frame i.e. easily fracture from here.

Therefore, main purpose of the present utility model is to provide a kind of racket frame with compound of improvement, and it not only can reduce outside the suffered jarring of the square stance person of holding the bat hand effectively, and can keep due rigidity.

For reaching aforementioned purpose, the racket frame with compound of improvement of the present utility model includes: one first tubular body, and it is used for constituting the head and the footstalk portion of this racket frame; One second tubular body, it extends outward from the end that this first tubular body constitutes this footstalk portion; And one the 3rd tubular body, it is coated on this second tubular body surface.This second, third tubular body is used for constituting the grip part of this racket frame; This first tubular body includes and first an exterior layer shell with predetermined number of layers made by the plastic composite of long fibre reinforcement thermosetting resin; This second tubular body includes second an exterior layer shell of making and having predetermined number of layers by the plastic composite of long fibre reinforcement thermosetting resin, the number of plies of this second exterior layer shell than this first exterior layer shell for lacking; The 3rd tubular body includes the 3rd an exterior layer shell of being made by the plastic composite of fibrous reinforcement thermoplastic resin, and the 3rd exterior layer then is covered on the surface of this second exterior layer shell.

By the leading portion explanation as can be known, the head of this racket frame and footstalk portion are made of this first tubular body, and the grip part of this racket frame then is coated on this second tubular body surface by second tubular body and that extends from the part first exterior layer shell of this first tubular body and is made of the 3rd tubular body that thermoplastic plastic composite material is made.Therefore, in square stance, from this head along this frame portion transmit and the Sasser that comes when arriving this grip part, some can be stopped in the junction of this first tubular body and this second tubular body, other is then absorbed some by the 3rd tubular body.So the inevitable racket frame with compound of commonly using of the concussion that the person's of holding the bat arm is experienced is little.Moreover this grip part extends from this footstalk portion because of some structure, so the framework of whole racket frame still can keep due rigidity.

Below, lift a preferred embodiment of the present utility model and conjunction with figs. now and be described further, wherein:

Fig. 1 is the stereogram of the utility model one preferred embodiment.

Fig. 2 is the part sectional block diagram of the utility model one preferred embodiment.

Fig. 3 is the part exploded perspective view of the utility model one preferred embodiment.

The cutaway view that Fig. 4 intercepts on the 4-4 direction in Fig. 1 for the utility model one preferred embodiment.

The cutaway view that Fig. 5 intercepts on the 5-5 direction in Fig. 1 for the utility model one preferred embodiment.

The cutaway view that Fig. 6 intercepts on the 6-6 direction in Fig. 1 for the utility model one preferred embodiment.

See also each accompanying drawing, the games racket frame 10 of the utility model one preferred embodiment has a circular head 12, a footstalk portion 14, and this footstalk portion 14 is connected in the openend of this circular head 12 with two branches 141,142.This framework 10 also has: a jaw portion 16, and it bridges at the initiating terminal of this two branch 141,142, in order to limit a striking surface 18 that seals with this circular head 12; One grip part 20, its from this two branch 141,142 and to close end outer toward extension.

This circular head 12 is made of one first tubular body 30 with this footstalk portion 14.This first tubular body 30 has one and contains the carbon fiber textile board 32 and the layer 2-3 that are soaked with epoxy resin by the 5-7 layer and contain the first exterior layer shell 36 that the stacked in regular turn coiling of the glass fibre textile board 34 that is soaked with epoxy resin forms; One cover is through at the first thin plastics airduct 38 of these exterior layer shell 32 innermost layers.

This grip part 20 is made of one second tubular body 40 and one the 3rd tubular body 50.This second tubular body 40 has one second exterior layer shell 42, and its each glass fibre textile board layer 34 by this first exterior layer shell 36 extends outward and forms, and one second thin plastics airduct 44 is extended outward by this first thin plastic tube 38 equally and forms.The adjacent regions of this first exterior layer shell 36 and this second exterior layer shell 42, its number of plies preferably in regular turn decrescence (as shown in Figure 3) concentrate to avoid stress.The 3rd tubular body 50 has one the 3rd exterior layer shell 52, and it can contain the stacked coiling of carbon fiber textile board that is soaked with nylon by multilayer and forms, and perhaps the plastic composite molding that is mixed with nylon resin by the multilayer short carbon fiber forms.

During fabrication, first moulding the 3rd tubular body 50.Then, it cover is overlying on the surface of this second exterior layer shell 42 of unhardened moulding still.When cover covers, the front end of the 3rd tubular body 50 preferably is stacked and placed on the end of this first exterior layer shell 36, and then be coated on the surface, junction of this first, second

exterior layer shell

36,42, thereby form a strengthening course 60 with the carbon fiber textile board that layer 2-3 contains epoxy resin dipping.At last, again this first, second and third tubular body 30,40,50 and this strengthening course 60 are inserted together that the heating press quenching is shaped to this racket frame 10 in the mould.Certainly, the end of this second tubular body 40 preferably makes its end from the 3rd tubular body 50 stretch out a predetermined length outward, as the valve of the perfusion of bind in manufacture process gas-pressurized.

Again, aforementioned in order to the carbon fiber of making this exterior layer shell respectively and glass fibre as supporting material, it also can use commercially available any reinforcing fiber, for example Kevlar fiber, boron fibre and ceramic fibre etc.; And can take nylon 6 in order to the thermoplastic resin of making the 3rd exterior layer shell 52, because of it has excellent elasticity and toughness, certain its also available other suitable thermoplasticity material, for example nylon 6/6, nylon 11, nylon 12, polyester, polypropylene, acrylonitrile one butadiene one styrol copolymers etc.

Claims

1, a kind of racket frame with compound of improvement is characterized in that, includes:

One first tubular body, in order to head and the footstalk portion that constitutes this racket frame, one second tubular body extends outward from the end that this first tubular body constitutes this footstalk portion, and one the 3rd tubular body be coated on this second tubular body surface, this second, third tubular body is then in order to constitute the grip part of this racket frame;

This first tubular body includes one and is made and the first exterior layer shell of tool predetermined number of layers by the plastic composite of long fibre reinforcement thermosetting resin;

This second tubular body includes one to be made and the second exterior layer shell of tool predetermined number of layers by the plastic composite of long fibre reinforcement thermosetting resin, the number of plies of this second exterior layer shell than this first exterior layer shell for lacking;

The 3rd tubular body includes the 3rd an exterior layer shell of being made by the plastic composite of fibrous reinforcement thermoplastic resin, and the 3rd exterior layer shell then is coated on the surface of this second exterior layer shell.

2, the racket frame with compound of improvement as claimed in claim 1 is characterized in that, wherein this second exterior layer shell is extended outward by the part internal layer of this first exterior layer shell and forms.

3, the racket frame with compound of improvement as claimed in claim 2 is characterized in that, wherein this first exterior layer shell and this second exterior layer shell the handing-over position the number of plies on the direction of this second exterior layer shell in regular turn decrescence.

4, the racket frame with compound of improvement as claimed in claim 2 is characterized in that, the wherein end of the front end of the 3rd exterior layer shell and this first exterior layer shell handing-over.

5, the racket frame with compound of improvement as claimed in claim 2 is characterized in that, wherein the front end sleeve of the 3rd exterior layer shell is overlying on the end of this first exterior layer shell.

6, as the racket frame with compound of claim 4 or 5 described improvement, it is characterized in that, wherein the surface of the 3rd exterior layer shell and this first exterior layer shell junction is coated with strengthening course, this strengthening course by the long fibre textile board of many impregnation thermosetting resins to form across the stacked coiling of the mode of this junction.

7, the racket frame with compound of improvement as claimed in claim 1 or 2, it is characterized in that, wherein this first tubular body is after being bent into this head, from this head open end with two branches and in this two branches end in addition and the mode of closing extend to form this footstalk portion outward, this second tubular body then extends outward from the end of this two branch.

8, the racket frame with compound of improvement as claimed in claim 1 or 2 is characterized in that wherein the end of this second tubular body stretches out a predetermined length outward from the end of the 3rd tubular body.