CN1067388A

CN1067388A - Racket

Info

Publication number: CN1067388A
Application number: CN91103553A
Authority: CN
Inventors: 尤景三
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-05-31
Filing date: 1991-05-31
Publication date: 1992-12-30

Abstract

A kind of racket, have one and hit the position, one holds the position, and the elastic bending position between the two, it also comprises the outer casing of being made and be sandwich construction by fibre reinforced plastic, this outer casing is provided with some fibers and blocks the position on the zone that this elastic bending position and this hand-holding part are constituted, each fiber blocks the fiber that blocks at the position and accounts for this zone fiber sum one predetermined ratio, one clad is molded on the surface in each zone in order to cover each fiber truncated region, this clad can be simultaneously embedding with some reinforcements or shock-absorbing piece on this zone when moulding, bring into play best strike effect, and make the suffered jarring of striker's hand reduce to minimum.

Description

Racket

The present invention relates to a kind of sporting rackets such as tennis racket, pelota bat, wall ball racket and racket that are similar to, particularly relate to a kind of by having the racket that fibre-reinforced composite is main material, this racket can make the user at square stance, and it is minimum that the suffered jarring of hand is reduced to.

At present, be that the racket of main material is as its outer casing with fibre reinforced plastic (F.R.P) generally by having fibre-reinforced composite, during fabrication, this outer casing is to be reeled by many textile boards that form and contain thermosetting resin with long fibre braiding to form, and puts it into pressurization in the mould, heating, hardened forming after being wound into the shape of racket.Therefore, in general, above-mentioned sandwich construction is actually equably and distributes on the racket entire length, and in other words, this traditional its head of racket and the shank made by fibre reinforced plastic have similar substantially cross section.From the viewpoint of vibroseis, this uniformity, the integrated sandwich construction utmost point is suitable for the non-resistance transmission of shock wave.

Therefore, have the racket of above-mentioned sandwich construction, the vibrations meeting that is produced at the batting wire side square stance of racket is unhinderedly directly along the head of racket, the hand that shank passes to the user, and this phenomenon can cause sizable injury to user's hand.

The objective of the invention is for solving because of vibrations that square stance produced reach user's hand by racket, to avoid causing user's hand to come to harm.In utility model application, application number is 201997, carried a solution in " can subdue the racket structure of handle vibration " by name, taper knob with a unidirectional opening is loaded on the main shaft of racket frame, the two clogs a damping elastomer, in addition, between this main shaft end is bottom handle, be connected a spring.This structure is complex structure but also make difficulty not only, simultaneously, after shock wave passes to handle just with its absorption, therefore, it stop and subdue shock wave to use effect not remarkable.

Fibre reinforced plastic bat commonly used has sizable thickness in order to prevent its fracture on striking spot on the ball, therefore, will cause the rigidity of this bat too big, and in the case, the striker can't be applied to the strength of hitting on the spheroid fully.

In addition, generally speaking fiber reinforcement bat commonly used, all has an outer casing of being reeled and being formed by the fiber weavening plate of many pre-epoxy resin dippings, and this outer casing is actually the major axis extension of uniformity ground along bat.And from the viewpoint of vibroseis, this kind sandwich construction quite is fit to shock wave and unhinderedly transmits.Therefore, above-mentioned bat is unhinderedly directly reached hand-holding part along strike position, elastic bending position in the vibrations meeting that square stance produced, and this kind phenomenon can make the striker be subjected to athletic injury.

Therefore, it is the bat of material with the fibre reinforced plastic that main purpose of the present invention provides a kind of, and its rigidity and elasticity can be looked striker's the proper arrangement that needs, and can not influence its intensity.

Another object of the present invention provides a kind of bat made from fibre reinforced plastic, and it can stop at square stance quite effectively by hitting the Sasser that the position reaches hand-holding part.

Racket according to the present invention has a strike position, and holds the position and the elastic bending position in order to the two is linked together between this strike position and hand-holding part, it is characterized in that this bat comprises an outer casing of making and having predetermined wall thickness with fibre reinforced plastic, this outer casing is provided with some fibers and blocks the position on this elastic bend part and the formed zone of this hand-holding part, this fiber blocks the fiber number that blocks at the position and occupies this zone fiber sum one predetermined ratio, generally between 5%-95%.Thus; this has, and fiber blocks the zone at position and the fiber at this strike position will form discrete state; this kind discrete state one can stop square stance to transmit and next Sasser from this strike position effectively; second can make this regional rigidity and elasticity be different from this strike position; in other words; bat of the present invention can mat this fiber of work number of blocking position institute chopped fibers adjust the strike effect that this zone prerequisite rigidity of institute and elasticity are brought into play the best; in addition; having fiber at this blocks and can coat a clad that high molecular polymer arranged on the zone at position; be used for protecting this zone on the one hand, then can be used to absorb remaining Sasser on the other hand.

Another feature of racket of the present invention is to include some embedding in this clad, each embedding can be all by the metal for example of the material with redetermined rigidity, composite, timber, pottery, fibre reinforced plastics etc. are made, be used for adjusting and have the rigidity that fiber blocks the zone at position, perhaps all by the plastic cement for example of the material with shock-absorbing performance, rubber, foamed plastic thing etc. is made, be used for further absorbing remaining Sasser, certainly, also can a part of be made by the material with redetermined rigidity for each embedding, another is partly then made by the material with shock-absorbing characteristic.

Below with reference to most preferred embodiment and accompanying drawing, to the present invention's detailed description in one step, wherein:

Fig. 1 is the stereogram of most preferred embodiment of the present invention, and wherein clad is to represent with a hyaline layer.

Fig. 2 is most preferred embodiment of the present invention cutaway view on the 2-2 direction in Fig. 1.

Fig. 3 is the present invention's stereogram of a most preferred embodiment again, and wherein clad also is to represent with a hyaline layer.

Fig. 4 is most preferred embodiment of the present invention cutaway view on the 4-4 direction in Fig. 3.

Fig. 5 is the stereogram of the another most preferred embodiment of the present invention, and wherein clad is represented by a hyaline layer equally.

Fig. 6 is most preferred embodiment of the present invention cutaway view on the 6-6 direction in Fig. 5.

Fig. 7 is most preferred embodiment of the present invention cutaway view on the 7-7 direction in Fig. 5.

See also each figure, baseball bat of the present invention (10) is to be made by the carbon fiber textile board of many pre-epoxy resin dippings, and it has a strike position (12), and holds position (14) and between between the two and the elastic bending position (16) of formation one.

Please see that baseball bat (10) comprises an outer casing (20) that is the sandwich construction shape, this outer casing (20) is to be material and to be utilized the die cast method to make by general fibre reinforced plastic, for example take many carbon fiber textile boards of invading epoxy resin in advance and having a predetermined fiber orientation and be wound into tubulose, put it into heating in the mould, pressurization then, make its curing form a carbon fiber tubing, this tubing has the shape that is equivalent to the baseball bat that will make in fact, and promptly its diameter is to be phased down to this hand-holding part of work (14) by this strike position (12).

The present invention's one most preferred embodiment is it to be have the recessed of desired depth, on the surface of this zone (30), be provided with the score of a plurality of inhomogeneous arrangements and tool predetermined length, fiber on each score (32) is blocked fully, each score (32) in embodiments of the present invention, accounted for 25% of the whole fiber sums in this zone by the sum of chopped fibers, then, irritate on the surface of this zone (30) in the injection molding mode again and put a plastic cement clad (34), like this, the zone that this outer casing (20) constitutes this strike position (12) can have bigger wall thickness, so that its intensity meets demand, on this elastic bending position (16) to zone of this hand-holding part (14) then because of there being 25% fiber to be blocked and be provided with a plastic cement clad (34), and the rigidity and the elasticity that make this zone have to bring into play best strike effect, in addition, this strike position (12) is to be discrete state with the fiber of this hand-holding part (14), therefore, hitting Sasser that position (12) produces at square stance by this stops reaching the promptly a large amount of before quilt of this hand-holding part (14), and nubbin is then absorbed by this clad (34), so it is minimum that the suffered jarring of striker's hand will reduce to.

Another embodiment of baseball bat of the present invention (10) can form a ring-type recessed (50) at the calmodulin binding domain CaM of this elastic bending position (16) and this hand-holding part (14), be provided with the mark of break (52) and the open-work (54) of a plurality of inhomogeneous arrangements in the surface of this ring-type recessed (50), each mark of break (52) and open-work (54) are located intercepted fiber number and are accounted for 40% of this recessed (50) total fiber number, then, go up injection molding one plastic cement clad (56) in this ring-type recessed (50) again, certainly, can optionally embedding in advance some enhancing bars (58) that fibre reinforced plastic is arranged before moulding, thus, but one side each mark of break of mat (52), open-work (54) and this plastic cement clad (56) are stopped definitely and are absorbed the concussion that batting produces, then but mat respectively strengthens the enhancing function of bar (58) on the other hand, makes rigidity of this baseball bat (10) and elasticity be in the state that can bring into play whole force de frappes.

The another embodiment of baseball bat of the present invention (10) can be provided with eight groove rods (59) equidistant and that length direction is parallel with this baseball bat (10) major axis of being separated by on the surface of aforesaid ring-type recessed (50), then be respectively equipped with the mark of break (60) of some inhomogeneous arrangements between each groove (59), and open-work (62), in design, the sum of each mark of break (60) and each open-work (62) place chopped fibers accounts for 60% of recessed (50) total fiber number of this ring-type, therefore, the rigidity at this strike position (12) necessarily will exceed a predetermined value than the second half section at this elastic bending position (16), and reach our needed numerical value for the rigidity that makes this elastic bending position (16), this have can be at the embedded enhancing bar of being made by fibre reinforced plastic (62) of inserting of aforementioned part groove (59), in remaining groove (59) then pointing go into the shock-absorbing bar of making by plastic cement (64), go up to irritate in this ring-type recessed (50) more at last and insert plastic cement clad (70), by as can be known aforementioned, this baseball bat (10) has the enough strike positions (12) of intensity on the one hand and bats and make it can not rupture, then can borrow each mark of break (60) and respectively strengthen bar (62) adjustment on the other hand and have the rigidity that to bring into play maximum strike effect because of this elastic bending position (16), then can stop by a large amount of quilts on the one hand again because of the Sasser that reaches this hand-holding part (14) from this strike position (12) that is arranged so that of each mark of break (60) and open-work (62), and remaining Sasser has each shock-absorbing bar (64) and clad (70) to do further absorption damping, so striker's hand can reduce to minimum in the suffered jarring of square stance.

Claims

1, a kind of racket, have one and hit (Impact) position, one holds (Grip) position and an elastic bending (Flexiblebending) position in order to the two is linked together between this strike position and this hand-holding part, it is characterized in that, this bat comprises one and is made and the outer casing of tool predetermined wall thickness by fibre reinforced plastic, this outer casing is provided with some fibers and blocks the position on the zone that this elastic bending position and this hand-holding part are constituted, each described fiber blocks the 5%-95% that the intercepted fiber number in position is about this zone total fiber number.

2, racket according to claim 1, wherein this fiber blocks the mark of break that the position is a tool preset width.

3, racket according to claim 1, wherein this fiber blocks the open-work that the position is a tool preset aperture.

4, according to claim 1,2 or 3 described rackets, wherein also including a clad, is that to be material with the high molecular polymer have fiber and block on the surface in zone at position in order to be coated on this.

5, racket according to claim 4, wherein this outer casing is provided with one and has desired depth and length recessed section on the zone that this elastic bending position and this hand-holding part are constituted, this fiber blocks the position and is located on this recessed section, and this clad then is coated on the whole surface that should be recessed into section.

6, according to the described racket of claim 4, wherein this clad includes embedding that several are made with predetermined material.

7, racket according to claim 4, wherein this has the zone that fiber blocks the position and is provided with some grooves at a distance of predetermined space, is filled with embedding that makes with predetermined material in each described groove respectively.

8, racket according to claim 5 wherein should recessed section be one to be the center with this bat major axis ring-type is recessed.

9, racket according to claim 5, the surface that wherein should be recessed into section is provided with some grooves at a distance of predetermined space, and each described groove inwardly is filled with embedding that predetermined material is made respectively.

10, racket according to claim 6, wherein each described embedding is to make with the material with redetermined rigidity.

11, racket according to claim 6, wherein each described embedding is to make with the material with shock absorption.